CN113479157B

CN113479157B - Anti-collision buffer device

Info

Publication number: CN113479157B
Application number: CN202110796125.XA
Authority: CN
Inventors: 罗昌杰; 于文泽; 张一帆; 黄科; 周君; 刘国栋; 崔昕龙; 刘红非
Original assignee: Guangdong Qianxingda Automobile Safety Technology Co ltd
Current assignee: Guangdong Qianxingda Automobile Safety Technology Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2023-07-28
Anticipated expiration: 2041-07-14
Also published as: CN113479157A

Abstract

The application provides an anti-collision buffer device, which comprises a shell, wherein the shell comprises a pair of first shell walls and a pair of second shell walls, the first shell walls and the second shell walls are alternately connected to form an accommodating space, and the rigidity of the second shell walls is smaller than that of the first shell walls; and the first energy absorption assembly is accommodated in the accommodating space, and the energy absorption strength of the first energy absorption assembly is wholly consistent, or the energy absorption strength of the first energy absorption assembly is gradually increased or decreased from one end to the other end. The utility model provides an anticollision buffer has adopted the shell of constituteing by first shell wall and second shell wall to wrap up first energy-absorbing subassembly for when the shell receives the impact, the energy-absorbing deformation takes place at first for the lower second shell wall of rigidity, then first shell wall takes place the energy-absorbing deformation again, thereby make the shell can controllable in order warp, and have better direction nature, make the energy that the impact produced mostly concentrate on acting on first energy-absorbing subassembly, solved the technical problem that the unstable easy emergence of crashproof blotter direction nature in the collision process.

Description

Anti-collision buffer device

Technical Field

The application belongs to the technical field of traffic protection devices, and more specifically relates to an anti-collision buffer device.

Background

Crash cushions are an emerging type of traffic protection device, and are now increasingly being used. The method is mainly applied to the mobile maintenance operation of roads such as expressways, urban expressways, elevated roads, overpasses and the like, temporary road construction and traffic accident handling emergency scene. The use of crash cushions, on the one hand, is to protect the safety of personnel and corresponding equipment at the construction or rescue site and, on the other hand, to provide a sufficient crash cushion for the rear culprit vehicle, thereby reducing the extent of casualties of personnel in the culprit vehicle.

Currently, there are two main types of crash cushions: one is the structural style that the metal leads the frame to add the energy-absorbing bag, wherein the energy-absorbing bag is made up of metal covering and internal filling energy-absorbing material, this structural style rigidity is enough, the guidance is good, but the cost is high; the structure of the metal skin with the additional internal filling energy absorbing material has low structural cost, but poor guidance quality, and is easy to be unstable in the collision process, thereby influencing the energy absorbing protective performance.

Disclosure of Invention

An object of the present application is to provide a crash cushion device, including but not limited to solving the technical problem that the poor guiding performance of the crash cushion is prone to instability in the collision process.

To achieve the above object, the present application provides an anti-collision buffer device, including:

the shell comprises a pair of first shell walls and a pair of second shell walls, wherein the first shell walls are arranged at opposite intervals, the second shell walls are arranged at opposite intervals, the first shell walls and the second shell walls are alternately connected to form an accommodating space, and the rigidity of the second shell walls is smaller than that of the first shell walls; and

the first energy absorption assembly is accommodated in the accommodating space, and the energy absorption strength of the first energy absorption assembly is wholly consistent, or the energy absorption strength of the first energy absorption assembly is gradually increased or decreased from one end to the other end.

The utility model provides an anticollision buffer has adopted the shell of constituteing by first shell wall and second shell wall to wrap up first energy-absorbing subassembly, because the rigidity of first shell wall is greater than the rigidity of second shell wall, when making the shell receive the impact, the second shell wall that rigidity is lower takes place energy-absorbing deformation at first, then first shell wall takes place energy-absorbing deformation again, thereby make the shell can controllable deformation in order, and have better guidance quality, make the energy that the impact produced mostly concentrate on acting on first energy-absorbing subassembly, the technical problem that the poor easy unstability takes place in the collision process of anticollision buffer guidance quality has been solved, reduce whole anticollision buffer effectively and take place the risk of deformation unstability, it also can exert higher energy-absorbing efficiency to have ensured under the circumstances of dislocation collision.

In one embodiment, a first reinforcement is provided on the first housing wall, the first reinforcement serving to increase the local stiffness of the first housing wall.

So that the rigidity of the first housing wall can gradually increase or decrease from one end of the first housing wall to the other end.

In one embodiment, the cross section of the first shell wall is in a cell shape, the first shell wall comprises a first corrugated plate and a second corrugated plate, and the first corrugated plate and the second corrugated plate are stacked in the vertical direction and form at least one cell unit together.

The rigidity of the first shell wall and the impact resistance of the shell in the length direction X and the width direction Y are improved.

In one embodiment, the first housing wall includes n corrugated plates and n-1 first connection plates, the second housing wall includes n cover plates and n-1 second connection plates, n is a natural number greater than or equal to 2, the corrugated plates are alternately connected with the cover plates, the first connection plates are alternately connected with the second connection plates, two adjacent corrugated plates are connected through the first connection plates, and two adjacent cover plates are connected through the second connection plates.

The length and the assembly firmness of the shell are improved.

In one embodiment, the first energy absorbing assembly comprises:

the energy absorption pipes are arranged side by side along the direction perpendicular to the first shell wall, the extending direction of the axis of the energy absorption pipes is consistent with the length direction of the first shell wall, and the energy absorption strength of the energy absorption pipes is gradually increased or decreased from one end to the other end.

So that the whole anti-collision buffer device can absorb energy and deform stably and orderly.

In one embodiment, the energy absorber tube comprises:

m pipe bodies are sequentially arranged according to the change direction of the energy absorption strength, wherein m is a natural number which is more than or equal to 2;

the first energy absorbing assembly further includes:

m-1 baffle, the baffle connect in first shell wall with on the second shell wall, adjacent two the body passes through the baffle is connected.

The first energy absorption component can absorb energy and deform smoothly and orderly.

In one embodiment, the pipe wall of the pipe body is provided with a guiding hole, and/or the pipe wall thickness of the pipe body with larger energy absorption strength is larger than the pipe wall thickness of the pipe body with smaller energy absorption strength.

Therefore, the deformation of the energy absorption tube is controllable, and the orderly deformation of the first energy absorption assembly is ensured.

In one embodiment, the first energy absorbing assembly further comprises:

and the second reinforcement is arranged in the pipe body and is used for increasing the local rigidity of the energy absorption pipe.

Thereby changing the change direction of the energy absorption strength of the energy absorption tube.

In one embodiment, the first energy absorbing assembly comprises:

the m first energy absorption blocks are sequentially arranged along the length direction of the first shell wall, m is a natural number which is more than or equal to 2, and the energy absorption strength of the m first energy absorption blocks is gradually increased or reduced; and

m-1 baffle, the baffle connect in first shell wall with on the second shell wall, two adjacent first energy-absorbing piece pass through the baffle is connected.

In one embodiment, the crash cushion apparatus further comprises:

the second energy absorption assembly is detachably connected to the first shell wall and the second shell wall and covers the opening of the accommodating space; and

and the switching component is connected to the first shell wall and the second shell wall, and covers the other opening of the accommodating space and is used for being connected with the bearing main body.

The anti-collision buffer device is beneficial to improving the maintenance efficiency of the anti-collision buffer device, reducing the maintenance cost of the anti-collision buffer device, and facilitating the installation of the anti-collision buffer device on the bearing main body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a partial cross-sectional view of an impact buffering device provided in an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a housing provided in an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of a housing provided in accordance with another embodiment of the present application;

FIG. 4 is a schematic perspective view of a housing according to yet another embodiment of the present application;

FIG. 5 is a partial cross-sectional view of a first energy absorbing assembly provided in accordance with an embodiment of the present application;

FIG. 6 is a partial cross-sectional view of a crash cushion provided in accordance with another embodiment of the application;

FIG. 7 is a partial cross-sectional view of a second energy absorbing assembly provided in accordance with an embodiment of the present application;

fig. 8 is a schematic perspective view of a switching assembly according to another embodiment of the present disclosure;

fig. 9 is a schematic diagram of a crash test of a crash cushion according to an embodiment of the present application.

Wherein, each reference sign in the figure:

1-an anti-collision buffer device, X-a length direction and Y-a width direction;

10-outer shell, 11-first shell wall, 12-second shell wall, 13-first reinforcement, 100-accommodation space, 110-cell unit, 111-corrugated plate, 112-first connector plate, 113-first corrugated plate, 114-second corrugated plate, 121-cover plate, 122-second connector plate;

20-first energy-absorbing components, 21-energy-absorbing pipes, 22-partition plates, 23-second reinforcing pieces, 24-first energy-absorbing blocks, 210-induced holes, 211-first pipe bodies, 212-second pipe bodies, 241-energy-absorbing blocks a, 242-energy-absorbing blocks b, 243-energy-absorbing blocks c, 244-energy-absorbing blocks d and 245-energy-absorbing blocks e;

30-second energy absorption components, 31-shells, 32-second energy absorption blocks, 33-mounting plates, 310-accommodating cavities, 311-top plates, 312-side plates and 313-bottom plates;

40-switching assembly, 41-switching plate, 42-nut, 411-first connecting portion, 412-second connecting portion.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The description is as follows: when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the patent, and the specific meaning of the terms described above may be understood by those of ordinary skill in the art as appropriate.

The term "plurality" means two or more, and "a number" means one or more, unless specifically defined otherwise.

Referring to fig. 1 and 2, the present embodiment provides an anti-collision buffer device 1, including a shell 10 and a first energy absorbing assembly 20, where the shell 10 includes a pair of first shell walls 11 and a pair of second shell walls 12, the pair of first shell walls 11 are disposed at opposite intervals, the pair of second shell walls 12 are disposed at opposite intervals, the first shell walls 11 and the second shell walls 12 are alternately connected to form a receiving space 100, and the rigidity of the second shell walls 12 is smaller than that of the first shell walls 11; the first energy absorbing assembly 20 is accommodated in the accommodating space 100, and the energy absorbing strength of the first energy absorbing assembly 20 is uniform as a whole.

Specifically, the pair of first shell walls 11 and the pair of second shell walls 12 are alternately connected to form the accommodating space 100 with the cross section approximately rectangular, the pair of first shell walls 11 are located at the left side and the right side of the accommodating space 100, the pair of second shell walls 12 are located at the upper side and the lower side of the accommodating space 100, and the rigidity of the first shell walls 11 is greater than that of the second shell walls 12, so that the side of the shell 10 where the first shell walls 11 are located can bear larger impact force, namely the buffer force at the two sides of the shell 10 is larger, the buffer force at the middle is smaller, the second shell walls 12 are easy to deform after being impacted compared with the first shell walls 11, therefore, in the collision process, the shell 10 is easy to sink along the central axis after being impacted (see fig. 9), most of energy generated by the impact is acted on the first shell assembly 20, the maximum energy absorption effect of the first shell assembly 20 is realized, the risk of deformation and instability of the whole anti-collision buffer device 1 is effectively reduced, and the anti-collision buffer device can also exert high anti-collision efficiency under the situation of high-collision efficiency.

According to the anti-collision buffer device 1 provided by the embodiment, the shell 10 consisting of the first shell wall 11 and the second shell wall 12 is used for wrapping the first energy-absorbing component 20, and because the rigidity of the first shell wall 11 is larger than that of the second shell wall 12, when the shell 10 is impacted, the second shell wall 12 with lower rigidity is subjected to energy-absorbing deformation first, and then the first shell wall 11 is subjected to energy-absorbing deformation again, so that the shell 10 can be deformed orderly in a controllable manner, has better guiding performance, most of energy generated by impact is concentrated on the first energy-absorbing component 20, the technical problem that the anti-collision buffer cushion is poor in guiding performance and easy to generate instability in the collision process is solved, the risk of deformation and instability of the whole anti-collision buffer device 1 is effectively reduced, and the anti-collision buffer device 1 can exert higher energy-absorbing efficiency under the condition of dislocation collision is ensured.

Optionally, referring to fig. 2, as a specific embodiment of the crash cushion provided in the present application, a first reinforcement member 13 is provided on the first shell wall 11, and the first reinforcement member 13 is used to increase the local rigidity of the first shell wall 11. Specifically, a plurality of first reinforcement members 13 are connected to the inner or outer surface of the first shell wall 11, the plurality of first reinforcement members 13 are sequentially arranged along the length direction of the first shell wall 11, and the local stiffness of the first shell wall 11 having the first reinforcement members 13 is increased, so that the stiffness of the first shell wall 11 may gradually increase or decrease from one end of the first shell wall 11 to the other end, at this time, the energy absorption strength of the first energy absorption assembly 20 is uniform as a whole, or the variation direction of the energy absorption strength of the first energy absorption assembly 20 is uniform with the variation direction of the stiffness of the first shell wall 11.

Alternatively, referring to fig. 2, as one embodiment of the crash cushion provided herein, the first shell wall 11 includes n corrugated plates 111 and n-1 first joint plates 112, and the second shell wall 12 includes n cap plates 121 and n-1 second joint plates 122, where n is a natural number greater than or equal to 2, the corrugated plates 111 are alternately connected with the cap plates 121, the first joint plates 112 are alternately connected with the second joint plates 122, two adjacent corrugated plates 111 are connected through the first joint plates 112, and two adjacent cap plates 121 are connected through the second joint plates 122. Specifically, the corrugated plate 111, the first connector plate 112, the cap plate 121, and the second connector plate 122 may be made of a metal material; when the crash cushion 1 needs to obtain a larger cushion distance, the shell 10 needs to satisfy a certain length in the length direction X, at this time, the single corrugated plate 111 cannot process the first shell wall 11 with a sufficient length, and the single cover plate 121 cannot process the second shell wall 12 with a sufficient width, so that the plurality of corrugated plates 111 are required to be spliced into the first shell wall 11 along the length direction, and the plurality of cover plates 121 are required to be spliced into the second shell wall 12 along the width direction. The adjacent two corrugated plates 111 are fixedly connected by a first joint plate 112, the first joint plate 112 is respectively overlapped on the edges of the adjacent two corrugated plates 111, and the adjacent two corrugated plates 111 are spliced together; the adjacent two cap plates 121 are fastened by a second joint plate 122, and the second joint plate 122 is respectively overlapped on the edges of the adjacent two cap plates 121 and the adjacent two cap plates 121 are spliced together, thereby facilitating the improvement of the length and the assembly firmness of the housing 10.

Alternatively, referring to fig. 3 and 4, as a specific embodiment of the crash cushion provided herein, the cross section of the first shell wall 11 is in a lattice shape, and at this time, the first shell wall 11 includes a first corrugated plate 113 and a second corrugated plate 114, and the first corrugated plate 113 and the second corrugated plate 114 are stacked in a vertical direction and together form at least one lattice cell 110. Specifically, in the present embodiment, the first shell wall 11 is a double-layer structure formed by laminating and connecting the first corrugated plate 113 located on the outer side and the second corrugated plate 114 located on the inner side, and the vertical direction refers to the direction perpendicular to the first shell wall 11 or the width direction Y of the crumple zone 1; at least one cell 110 is formed between the first corrugation plate 113 and the second corrugation plate 114 on the same first housing wall 11, that is, one cell 110 (see fig. 4) may be formed between the first corrugation plate 113 and the second corrugation plate 114, or two cells 110 (see fig. 3) may be formed, or more than two cells 110 may be formed, on the same first housing wall 11, thereby advantageously improving the rigidity of the first housing wall 11 and the impact strength of the housing 10 in the length direction X and the width direction Y. It is understood that the cross-sectional shape of the cell 110 may be regular hexagonal, circular, rectangular, etc., and is not limited only herein.

Alternatively, referring to fig. 3, as a specific embodiment of the crash cushion provided herein, the first shell wall 11 includes n first corrugation plates 113, n second corrugation plates 114, and n-1 first corrugation plates 112, where n is a natural number greater than or equal to 2, and the first corrugation plates 113 and the second corrugation plates 114 are connected to the cap plate 121 after being vertically stacked, the first corrugation plates 112 are alternately connected to the second corrugation plates 122, and adjacent two first corrugation plates 113 are connected through the first corrugation plates 112. That is, the first shell wall 11 includes n wall bodies, each of which is formed by laminating and connecting one first corrugation plate 113 and one second corrugation plate 114, and two long sides of each wall body are respectively connected with edges of two cap plates 121, and adjacent two wall bodies are spliced together through one first splicing plate 112, so that the outer shell 10 can be processed to a certain length, so that the crash cushion 1 can obtain a large buffering distance.

Optionally, referring to fig. 3, as a specific embodiment of the crash cushion provided in the present application, a first reinforcement member 13 is disposed in the cell unit 110, and the first reinforcement member 13 is used to increase the local rigidity of the first shell wall 11. Specifically, the plurality of first reinforcement members 13 are disposed in the cells 110 along the length direction of the first shell wall 11 and are respectively fastened with the first corrugation plates 113 and the second corrugation plates 114, thereby effectively improving the local rigidity of the first shell wall 11, so that the rigidity of the first shell wall 11 can be gradually increased or decreased from one end of the first shell wall 11 to the other end, at which time the energy absorption strength of the first energy absorption assembly 20 is integrally consistent, or the variation direction of the energy absorption strength of the first energy absorption assembly 20 is consistent with the variation direction of the rigidity of the first shell wall 11.

Alternatively, referring to fig. 1 and 5, as a specific embodiment of the crash cushion provided in the present application, the first energy absorbing assembly 20 includes a plurality of energy absorbing tubes 21, the plurality of energy absorbing tubes 21 are disposed side by side along a direction perpendicular to the first shell wall 11, and an extending direction of an axis of each energy absorbing tube 21 coincides with a length direction of the first shell wall 11, and an energy absorbing strength of each energy absorbing tube 21 gradually increases or decreases from one end to the other end. Specifically, the direction perpendicular to the first shell wall 11, that is, the width direction Y of the crash cushion 1, the length direction of the first shell wall 11 is identical to the length direction X of the crash cushion 1, the energy absorbing pipes 21 are disposed in parallel with the first shell wall 11, and the plurality of energy absorbing pipes 21 are disposed side by side at intervals along the width direction Y, the cross-sectional shape of the energy absorbing pipes 21 may be regular hexagon, circle, rectangle, or the like, and the rigidity (i.e., energy absorbing strength) of each energy absorbing pipe 21 gradually increases or decreases from one end to the other end of the energy absorbing pipe 21, so that the entire crash cushion 1 may be subjected to energy absorbing deformation smoothly and orderly.

Optionally, referring to fig. 5, as a specific embodiment of the crash cushion apparatus provided in the present application, the energy absorbing tube 21 includes m tubes, where m is a natural number greater than or equal to 2, and the m tubes are sequentially arranged according to a direction of change of energy absorbing strength; meanwhile, the first energy absorbing assembly 20 further comprises m-1 partition plates 22, the partition plates 22 are connected to the first shell wall 11 and the second shell wall 12, and two adjacent pipe bodies are connected through the partition plates 22. For convenience of explanation of the structure of the energy absorbing tube 21, the energy absorbing tube 21 is exemplified herein to include four first tubes 211 and three second tubes 212. Specifically, the rigidity of the second tube 212 is greater than that of the first tube 211; the four first pipe bodies 211 are sequentially connected along the axial direction, the first pipe body 211 positioned at the tail part is connected with the second pipe body 212 positioned at the head part, and the three second pipe bodies 212 are sequentially connected along the axial direction to form a complete energy absorption pipe 21, so that the energy absorption strength of the energy absorption pipe 21 is gradually increased from the side of the first pipe body 211 to the side of the second pipe body 212, and it is understood that the first pipe body 211 and the second pipe body 212 are coaxial, and the axial direction refers to the extending direction of the axis of the energy absorption pipe 21; the first energy absorbing assembly 20 includes six spacers 22, two adjacent first tubes 211 are spliced by one spacer 22, two adjacent second tubes 212 are spliced by one spacer 22, the adjacent first tubes 211 and second tubes 212 are spliced by one spacer 22, that is, the ends of the first tubes 211 spliced with the other first tubes 211 or the second tubes 212 are fastened to the spacers 22, and the ends of the second tubes 212 spliced with the other second tubes 212 or the first tubes 211 are fastened to the spacers 22, so that the first energy absorbing assembly 20 is formed, and the first energy absorbing assembly 20 can absorb energy and deform smoothly and orderly. Of course, in other embodiments of the present application, the energy absorbing tube 21 may include more than two tubes, which are respectively a first tube, a second tube, and a third tube … …, the number of the first tubes may be less than four or greater than four, and the number of the second tubes may be less than three or greater than three, which are not limited only herein.

Optionally, referring to fig. 5, as an embodiment of the crash cushion provided in the present application, a guiding hole 210 is formed on a pipe wall of the pipe body of the energy absorption pipe 21. Specifically, the induction holes 210 may have a circular shape, an oval shape, an oblong shape, etc. By providing the induced holes 210 in different shapes, apertures and numbers at different positions of the pipe wall of the pipe body, the local rigidity of the pipe body can be weakened, so that the change direction of the energy absorption strength of the energy absorption pipe 21 can be changed. In this embodiment, the guiding hole 210 is preferably a circular hole with a diameter of 10 mm, and is disposed close to the partition 22, so that the energy-absorbing tube 21 can be deformed from a part close to the partition 22 when being impacted, so that the deformation of the energy-absorbing tube 21 is controllable, and the orderly deformation of the first energy-absorbing assembly 20 is ensured.

Alternatively, referring to fig. 5, as an embodiment of the crash cushion provided in the present application, the wall thickness of the tube body with greater energy absorption strength is greater than the wall thickness of the tube body with smaller energy absorption strength. That is, the rigidity of the tube body can be changed by changing the thickness of the tube wall of the tube body under the condition of adopting the same material, so that a plurality of tube bodies are assembled into the energy-absorbing tube 21 in sequence according to the thickness of the tube wall from small to large, and the energy-absorbing strength of the energy-absorbing tube 21 can be gradually increased from one end to the other end.

Optionally, referring to fig. 5, as a specific embodiment of the anti-collision buffer device provided in the present application, a guiding hole 210 is formed on a pipe wall of a pipe body of the energy absorption pipe 21, and a pipe wall thickness of a pipe body with a larger energy absorption strength is greater than a pipe wall thickness of a pipe body with a smaller energy absorption strength. That is, under the condition of adopting the same material, the rigidity of the pipe body can be changed by changing the thickness of the pipe wall of the pipe body, and the change direction of the energy absorption intensity of the whole energy absorption pipe 21 is adjusted by arranging the induced holes 210 with different shapes, apertures and numbers at different positions of the pipe wall of the pipe body with different pipe wall thicknesses, so that the change direction is consistent with the rigidity change direction of the first shell wall 11, thereby ensuring that the whole anti-collision buffer device 1 can absorb energy and deform stably and orderly.

Optionally, referring to fig. 5, as a specific embodiment of the crash cushion apparatus provided herein, the first energy absorbing assembly 20 further includes a second reinforcement member 23, and the second reinforcement member 23 is disposed in the tube body of the energy absorbing tube 21 for increasing the local stiffness of the energy absorbing tube 21. Namely, the second reinforcing members 23 are accommodated in the tube body of the energy-absorbing tube 21 and are fixedly connected with the tube wall of the tube body, and the local rigidity of the energy-absorbing tube 21 can be increased by installing different numbers of the second reinforcing members 23 in the tube body at different positions, so that the change direction of the energy-absorbing strength of the energy-absorbing tube 21 is changed.

Optionally, referring to fig. 6, as a specific embodiment of the crash cushion provided in the present application, the first energy absorbing assembly 20 includes m first energy absorbing blocks 24 and m-1 spacers 22, where the m first energy absorbing blocks 24 are sequentially arranged along the length direction of the first shell wall 11, m is a natural number greater than or equal to 2, and the energy absorbing strength of the m first energy absorbing blocks 24 is gradually increased or decreased; the partition 22 is connected to the first shell wall 11 and the second shell wall 12, and two adjacent first energy absorbing blocks 24 are connected by the partition 22. For convenience in describing the structure of the first energy absorbing assembly 20, the first energy absorbing assembly 20 is illustrated herein as including seven first energy absorbing blocks 24. Specifically, the seven first energy absorbing blocks 24 are respectively an energy absorbing block a241, an energy absorbing block b242, an energy absorbing block c243, two energy absorbing blocks d244 and two energy absorbing blocks e245, the energy absorbing block a241, the energy absorbing block b242, the energy absorbing block c243, the energy absorbing block d244 and the energy absorbing block e245 can be made of metal honeycomb, foamed aluminum or rubber and other energy absorbing materials, damage energy generated by impact is absorbed through self collapse deformation, the energy absorbing strength of the energy absorbing block a241 is smaller than that of the energy absorbing block b242, the energy absorbing strength of the energy absorbing block b242 is smaller than that of the energy absorbing block c243, the energy absorbing strength of the energy absorbing block c243 is smaller than that of the energy absorbing block d244, the energy absorbing strength of the energy absorbing block d244 is smaller than that of the energy absorbing block e245, the first energy absorbing assembly 20 further comprises six partition plates 22, the block a241 and the energy absorbing block b242 are fixedly connected to the partition plates 22, the energy absorbing block b 243 and the energy absorbing block c243 are fixedly connected to the second partition plates 22, the block c243 and the block d244 are fixedly connected to the third partition plates 22, and the adjacent block d244 and the second partition plates 22 are sequentially connected to form a six partition plates 20, and the adjacent block 20 e are fixedly connected to the fourth partition plates 22. Of course, in other embodiments of the present application, the first energy absorbing assembly 20 may include other numbers of first energy absorbing blocks 24, and the number of first energy absorbing blocks 24 of different energy absorbing strengths may be one or more, as the case may be and as desired, without limitation.

Alternatively, referring to fig. 1 and 7, as a specific embodiment of the crash cushion apparatus provided herein, the crash cushion apparatus 1 further includes a second energy absorbing assembly 30, the second energy absorbing assembly 30 is detachably connected to the first shell wall 11 and the second shell wall 12, and the second energy absorbing assembly 30 covers the opening of the accommodating space 100 of the shell 10. Specifically, the energy absorption strength of the second energy absorbing assembly 30 is less than the energy absorption strength of the outer shell 10; when collision occurs, the second energy absorbing component 30 receives impact first, the second energy absorbing component 30 absorbs the damage energy generated by the impact through self crumple deformation, if the damage energy is insufficient to enable the second energy absorbing component 30 to be completely deformed, namely, the impact force is smaller, the shell 10 cannot deform, and at the moment, the normal use of the anti-collision buffer device 1 can be restored after the second energy absorbing component 30 is replaced, so that the maintenance efficiency of the anti-collision buffer device 1 is improved, and the maintenance cost of the anti-collision buffer device 1 is reduced.

Optionally, referring to fig. 7, as a specific embodiment of the crash cushion provided herein, the second energy absorbing assembly 30 includes a shell 31 and a second energy absorbing block 32, wherein a receiving cavity 310 is formed inside the shell 31; the second energy absorbing block 32 is received within the receiving cavity 310. Specifically, the shell 31 may include a top plate 311, a side plate 312, and a bottom plate 313, where the top plate 311, the side plate 312, and the bottom plate 313 enclose to form a receiving cavity 310, and wrap the second energy-absorbing block 32, and the second energy-absorbing block 32 may be made of an energy-absorbing material such as metal honeycomb, aluminum foam, or rubber, and absorb the breaking energy generated by the impact through the self-collapsing deformation; the second energy absorbing assembly 30 can be securely connected to the first and second shell walls 11, 12 by either the base plate 313 or the mounting plate 33 to detachably connect the second energy absorbing assembly 30 to the shell 10.

Optionally, referring to fig. 1 and 8, as a specific embodiment of the crash cushion apparatus provided in the present application, the crash cushion apparatus 1 further includes an adapter assembly 40, the adapter assembly 40 is connected to the first shell wall 11 and the second shell wall 12, and the adapter assembly 40 covers another opening of the accommodating space 100 of the outer shell 10 for connection with the carrying body. Specifically, the adapter assembly 40 may include an adapter plate 41 and a nut 42, wherein a plurality of first through holes are formed on an edge of the adapter plate 41, the plurality of nuts 42 are connected to an inner surface or an outer surface of the adapter plate 41 to be in one-to-one fit with the plurality of first through holes, and threaded holes of the nuts 42 are coaxially communicated with the first through holes; the bearing main body can be a car body or a protective fence and the like, a plurality of second through holes are formed in the bearing main body, and the positions of the second through holes correspond to the positions of the first through holes; the anti-collision buffer device 1 can be installed on the bearing main body by sequentially penetrating through the second through hole and the first through hole through the bolts and then screwing into the nuts.

In addition, the adapter plate 41 may include a first connection portion 411 and a second connection portion 412, the first connection portion 411 and the second connection portion 412 are formed through a flanging process, the height of the first connection portion 411 turned up is smaller than that of the second connection portion 412 turned up, the second connection portion 412 is located at a corner portion of the adapter plate 41 and is used for increasing a contact area with the first shell wall 11, so that connection firmness of the adapter plate 41 and the first shell wall 11 is enhanced, and the first connection portion 411 is arranged on an edge of the adapter plate 41 except the second connection portion 412 and is used for being connected with the first shell wall 11 and the second shell wall 12.

It is to be understood that in this application, "connected" of one component to another component means that the one component is riveted, welded, or bonded to the other component, etc.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims

1. An anti-collision buffer device, comprising:

the first energy absorption assembly is accommodated in the accommodating space, and the energy absorption strength of the first energy absorption assembly is wholly consistent, or the energy absorption strength of the first energy absorption assembly is gradually increased or decreased from one end to the other end;

the cross section of the first shell wall is in a cellular shape, the first shell wall comprises a first corrugated plate and a second corrugated plate, and the first corrugated plate and the second corrugated plate are stacked in the vertical direction and form at least one cellular unit together; a first reinforcement is arranged in the cell unit, and the vertical direction is the direction vertical to the first shell wall;

the first shell wall comprises n corrugated plates and n-1 first connecting plates, the second shell wall comprises n cover plates and n-1 second connecting plates, n is a natural number greater than or equal to 2, the corrugated plates are alternately connected with the cover plates, the first connecting plates are alternately connected with the second connecting plates, two adjacent corrugated plates are connected through the first connecting plates, and two adjacent cover plates are connected through the second connecting plates.

2. The crash cushion apparatus of claim 1 wherein a first stiffening member is provided on said first shell wall for increasing the localized stiffness of said first shell wall.

3. The impact cushioning device of any one of claims 1-2, wherein said first energy absorbing assembly comprises:

4. A crash cushion as recited in claim 3, wherein said energy absorber tube comprises:

the first energy absorbing assembly further includes:

5. The anti-collision buffer device as claimed in claim 4, wherein the tube wall of the tube body is provided with a guiding hole, and/or the tube wall thickness of the tube body with larger energy absorption strength is larger than the tube wall thickness of the tube body with smaller energy absorption strength.

6. The crash cushion apparatus of claim 4 wherein said first energy absorbing assembly further comprises:

7. The impact cushioning device of any one of claims 1-2, wherein said first energy absorbing assembly comprises:

8. The crash cushion apparatus as recited in any one of claims 1-2, further comprising: