CN113771789A - Automobile anti-collision beam - Google Patents
Automobile anti-collision beam Download PDFInfo
- Publication number
- CN113771789A CN113771789A CN202111041965.1A CN202111041965A CN113771789A CN 113771789 A CN113771789 A CN 113771789A CN 202111041965 A CN202111041965 A CN 202111041965A CN 113771789 A CN113771789 A CN 113771789A
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- CN
- China
- Prior art keywords
- damping
- plate
- fixedly connected
- shock attenuation
- fixed connection
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/28—Metallic springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
- B62D21/155—Sub-frames or underguards
Abstract
The invention relates to the technical field of automobiles, in particular to an automobile anti-collision beam; shock attenuation board and crossbeam and slide bar fixed connection, sleeve and slide bar and connecting plate fixed connection, first shock attenuation spring housing is located on sleeve and slide bar, herringbone pole and shock attenuation board fixed connection, slider and herringbone pole and connecting plate sliding connection, second shock attenuation spring and slider and connecting plate fixed connection, longeron and crossbeam fixed connection, the crossbeam will strike vibrations and give the preliminary shock attenuation of shock attenuation board, the slide bar slides in the sleeve, reduce shock attenuation board and connecting plate interval, first shock attenuation spring compression deformation secondary consumption strikes vibrations, the slider that the herringbone pole promoted both sides slides on the connecting plate, slider sliding extrusion second shock attenuation spring consumes again and strikes vibrations, remaining impact vibrations transmit and consume for the longeron, solve current car anticollision roof beam, antidetonation anti-cushioning effect is relatively poor, can not satisfy the problem of current needs.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile anti-collision beam.
Background
Along with the popularization of car, people also are higher and higher to the requirement of car security, and preceding sub vehicle frame anticollision roof beam is as influencing vehicle collision safety's key spare part, and the design of its position and structure plays decisive effect to the collision safety performance of car, and the anticollision roof beam sets up in the car locomotive position before the car, receives when the car strikes, bears the striking impact force to can absorb the impact force, reduce the direct impact force to the automobile body, thereby guarantee automobile mechanism and the interior personnel's of car safety.
But the anti-seismic and anti-buffering effects of the existing automobile anti-collision beam are poor, and the overall strength cannot meet the current requirements.
Disclosure of Invention
The invention aims to provide an automobile anti-collision beam, and aims to solve the problems that the existing automobile anti-collision beam is poor in anti-seismic and anti-buffering effects and cannot meet the current requirements.
In order to achieve the purpose, the invention provides an automobile anti-collision beam which comprises a cross beam, a first damping piece, a second damping piece and two longitudinal beams, wherein the first damping piece comprises a damping plate, a plurality of sliding rods, a plurality of sleeves, a plurality of first damping springs and a connecting plate, the damping plate is fixedly connected with the cross beam and is positioned on one side of the cross beam, the plurality of sliding rods are respectively and fixedly connected with the damping plate and are positioned on one side of the damping plate, which is far away from the cross beam, the plurality of sleeves are respectively and slidably connected with the sliding rods and are positioned on one sides of the sliding rods, which are far away from the damping plate, the connecting plate is fixedly connected with the sleeves and is positioned on one sides of the sleeves, which are far away from the sliding rods, the plurality of first damping springs are respectively sleeved on the plurality of sleeves and are positioned between the damping plate and the connecting plate, and the second damping piece comprises a plurality of herringbone rods, A plurality of slide blocks and a plurality of second damping springs, wherein the herringbone rods are fixedly connected with the damping plate and are all positioned on one side of the damping plate far away from the cross beam, the slide blocks are respectively rotatably connected with the herringbone rods, and are respectively connected with the connecting plates in a sliding way and are positioned at one side of the herringbone rod away from the damping plate, a plurality of second damping springs are respectively fixedly connected with a plurality of sliding blocks, and is fixedly connected with the connecting plate, and is positioned between the second damping spring and the connecting plate, the two longitudinal beams are respectively and fixedly connected with the cross beam and are positioned on one side of the cross beam close to the first damping piece, through the crossbeam anticollision, first damper, second damper with the longeron cooperation, the anti buffering of multiple shock attenuation reduces the direct impact force to the automobile body, guarantees automobile mechanism and interior personnel's safety.
Wherein, the crossbeam includes outer roof beam, foam blanket and inner beam, the inner beam with damper plate fixed connection, and be located the damper plate is kept away from slide bar one side, the foam blanket with inner beam fixed connection, and be located the inner beam is kept away from damper plate one side, the outer beam with foam blanket fixed connection, and be located the foam blanket is kept away from inner beam one side, through outer roof beam anticollision, setting up of foam blanket is strengthened the anticollision shock attenuation effect of crossbeam, the inner beam will the outer roof beam with the foam blanket with the damper plate is connected.
The beam further comprises an anti-collision plate, the anti-collision plate is fixedly connected with the outer beam and located on one side of the foam layer, the outer beam is far away from the anti-collision plate, the strength of the outer beam is enhanced by the anti-collision plate, and the anti-collision effect of the beam is improved.
Wherein, the shock attenuation board includes rubber slab and base plate, the rubber slab with inner beam fixed connection, and be located the inner beam is kept away from foam blanket one side, the rubber layer has a plurality of archs, and is a plurality of the arch all is located and is close to inner beam one side, the base plate with rubber slab fixed connection, and be located the rubber slab is kept away from inner beam one side, the base plate is right the rubber slab provides the installation condition, the rubber deformation of rubber slab, it is right the impact shock of crossbeam transmission cushions, the arch increases the area of rubber slab further improves the shock attenuation effect of rubber slab.
Wherein, first bumper shock attenuation piece still includes a plurality of buffer blocks, and is a plurality of the buffer block respectively with a plurality of sleeve fixed connection all is located in the sleeve, the buffer block is made by silica gel, the slide bar is in when sliding in the sleeve, further consume the impact of slide bar.
The second damping piece further comprises a plurality of third damping springs, the third damping springs are fixedly connected with the herringbone rods respectively and located on the inner side walls of the herringbone rods, and the herringbone rods push the sliding blocks on two sides to slide and stretch the third damping springs arranged between the herringbone rods so as to further damp and buffer the vibration.
The longitudinal beam comprises a longitudinal beam body and a connecting block, the connecting block is fixedly connected with the transverse beam and is located at a position where the transverse beam is close to one side of the first damping part, the transverse beam body is slidably connected with the connecting block and is located at a position where the connecting block is far away from one side of the transverse beam, the connecting block is connected with the transverse beam and the longitudinal beam body, and the longitudinal beam body consumes the shock impact which is not consumed by the transverse beam.
The longitudinal beam further comprises a reinforcing rib, the reinforcing rib is fixedly connected with the longitudinal beam body and located on the inner side wall of the longitudinal beam body, the reinforcing rib reinforces the hardness of the cross beam body, and the effect that the bending deformation of the cross beam body influences the damping and anti-buffering effects is prevented.
The longitudinal beam further comprises an air bag, the air bag is fixedly connected with the longitudinal beam body and is located close to one side of the reinforcing rib, and the anti-seismic and anti-buffering effect of the longitudinal beam is further enhanced by the air bag.
According to the automobile anti-collision beam, the cross beam is connected with an automobile body through the connecting plate, when an automobile is in a frontal collision during running, impact vibration is transmitted to the shock absorption plate through the cross beam, primary shock absorption is realized through the shock absorption plate, the slide rod is stressed to slide in the sleeve, so that the distance between the shock absorption plate and the connecting plate is reduced, the first shock absorption spring is compressed and deformed to consume the impact vibration for the second time, the herringbone rod rotates at the same time and pushes the slide blocks on two sides to slide on the connecting plate, the slide blocks slide and extrude the second shock absorption spring, the impact vibration is consumed again through the deformation of the second shock absorption spring, and the rest impact vibration of the cross beam is transmitted to the longitudinal beam to be consumed, the direct impact force to the automobile body is reduced, so that the safety of automobile mechanisms and personnel in the automobile is guaranteed, and the problems that the existing automobile anti-collision beam is poor in anti-seismic and anti-buffering effects and cannot meet the current needs are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an automotive impact beam according to the present invention;
FIG. 2 is a rear view of an automotive impact beam provided by the present invention;
FIG. 3 is a top view of an automotive impact beam provided by the present invention;
FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;
fig. 5 is a cross-sectional view taken along plane B-B of fig. 3.
In the figure: 1-cross beam, 2-first damping piece, 3-second damping piece, 4-longitudinal beam, 11-outer beam, 12-foam layer, 13-inner beam, 14-crashproof plate, 21-damping plate, 22-sliding rod, 23-sleeve, 24-first damping spring, 25-connecting plate, 26-buffer block, 31-herringbone rod, 32-sliding block, 33-second damping spring, 34-third damping spring, 41-longitudinal beam body, 42-connecting block, 43-reinforcing rib, 44-air bag, 211-rubber plate, 212-base plate and 213-protrusion.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the invention provides an automobile anti-collision beam, which includes a cross beam 1, a first damping member 2, a second damping member 3 and two longitudinal beams 4, wherein the first damping member 2 includes a damping plate 21, a plurality of sliding rods 22, a plurality of sleeves 23, a plurality of first damping springs 24 and a connecting plate 25, the damping plate 21 is fixedly connected with the cross beam 1 and is located at one side of the cross beam 1, the plurality of sliding rods 22 are respectively fixedly connected with the damping plate 21 and are located at one side of the damping plate 21 far from the cross beam 1, the plurality of sleeves 23 are respectively slidably connected with the sliding rods 22 and are located at one side of the sliding rods 22 far from the damping plate 21, the connecting plate 25 is fixedly connected with the sleeves 23 and is located at one side of the sleeves 23 far from the sliding rods 22, the plurality of first damping springs 24 are respectively sleeved on the plurality of sleeves 23, the second damping part 3 comprises a plurality of herringbone rods 31, a plurality of sliding blocks 32 and a plurality of second damping springs 33, the herringbone rods 31 are fixedly connected with the damping plate 21 and are positioned on the side of the damping plate 21 far away from the cross beam 1, the sliding blocks 32 are respectively rotatably connected with the herringbone rods 31 and are respectively in sliding connection with the connecting plate 25, the herringbone rods 31 are positioned on the side far away from the damping plate 21, the second damping springs 33 are respectively fixedly connected with the sliding blocks 32 and are fixedly connected with the connecting plate 25 and are positioned between the second damping springs 33 and the connecting plate 25, and the two longitudinal beams 4 are respectively fixedly connected with the cross beam 1 and are positioned on the side of the cross beam 1 near the first damping part 2.
In the embodiment, the cross beam 1 is connected with the vehicle body through the connecting plate 25, when the vehicle runs in a frontal collision, the cross beam 1 transmits impact vibration to the damping plate 21, the damping plate 21 primarily absorbs the vibration, the slide rod 22 slides in the sleeve 23 under the stress, so that the distance between the damping plate 21 and the connecting plate 25 is reduced, the first damping spring 24 is compressed and deformed to consume the impact vibration for the second time, at the same time, the herringbone rod 31 rotates and pushes the slide blocks 32 at two sides to slide on the connecting plate 25, the slide blocks 32 slidably extrude the second damping spring 33, the impact vibration is consumed again through the deformation of the second damping spring 33, and the rest impact vibration of the cross beam 1 is transmitted to the longitudinal beams 4 at two sides of the vehicle body to be consumed The second damping piece 3 is matched with the longitudinal beam 4, multiple damping and buffering are achieved, direct impact force on an automobile body is reduced, safety of automobile mechanisms and personnel in an automobile is guaranteed, and the problems that an existing automobile anti-collision beam is poor in anti-seismic and buffering effects and cannot meet current requirements are solved.
Further, crossbeam 1 includes outer beam 11, foam blanket 12, inner beam 13 and crashproof board 14, inner beam 13 with damper plate 21 fixed connection, and be located damper plate 21 keeps away from slide bar 22 one side, foam blanket 12 with inner beam 13 fixed connection, and be located inner beam 13 keeps away from damper plate 21 one side, outer beam 11 with foam blanket 12 fixed connection, and be located foam blanket 12 keeps away from inner beam 13 one side, crashproof board 14 with outer beam 11 fixed connection, and be located outer beam 11 keeps away from foam blanket 12 one side.
In this embodiment, the outer beam 11 is crashproof, the crash panel 14 reinforces the strength of the outer beam 11 to improve the crashproof effect of the cross beam 1, the foam layer 12 reinforces the crashproof and damping effect of the cross beam 1, and the inner beam 13 connects the outer beam 11 and the foam layer 12 with the damping panel 21.
Further, first damper 2 still includes a plurality of buffer blocks 26, and is a plurality of buffer blocks 26 respectively with a plurality of sleeve 23 fixed connection all is located in sleeve 23, damper 21 includes rubber slab 211 and base plate 212, rubber slab 211 with inner beam 13 fixed connection, and be located inner beam 13 keeps away from foam layer 12 one side, the rubber slab has a plurality of archs 213, and is a plurality of protruding 213 all is located and is close to inner beam 13 one side, base plate 212 with rubber slab 211 fixed connection, and be located rubber slab 211 keeps away from inner beam 13 one side.
In this embodiment, buffer block 26 is made by silica gel, slide bar 22 is in when sliding in sleeve 23, further consume slide bar 22's impact, base plate 212 is right rubber slab 211 provides the installation condition, rubber deformation of rubber slab 211, it is right the impact vibrations of crossbeam 1 transmission cushion, arch 213 increases rubber slab 211's area further improves rubber slab 211's shock attenuation effect.
Further, the second damping member 3 further includes a plurality of third damping springs 34, and the plurality of third damping springs 34 are respectively and fixedly connected with the plurality of herringbone rods 31 and are located on the inner side walls of the herringbone rods 31.
In the present embodiment, the herringbone lever 31 pushes the sliders 32 on both sides to slide, and simultaneously stretches the third damper spring 34, thereby further damping the collision.
Further, longeron 4 includes longeron body 41, connecting block 42, strengthening rib 43 and gasbag 44, connecting block 42 with 1 fixed connection of crossbeam, and be located crossbeam 1 is close to one side of first bumper shock absorber 2, crossbeam body 11 with connecting block 42 sliding connection, and be located connecting block 42 keeps away from 1 one side of crossbeam, strengthening rib 43 with longeron body 41 fixed connection, and be located the inside wall of longeron body 41, gasbag 44 with longeron body 41 fixed connection, and be located and be close to strengthening rib 43 one side.
In this embodiment, the cross beam 1 and the longitudinal beam body 41 are connected through the connecting block 42, the longitudinal beam body 41 consumes the shock impact which is not consumed by the cross beam 1, the reinforcing ribs 43 reinforce the hardness of the cross beam 1 body, the cross beam 1 body is prevented from bending deformation to influence the shock absorption and anti-buffering effects, and the arrangement of the air bags 44 further strengthens the shock absorption and anti-buffering effects of the longitudinal beam 4.
The invention discloses an automobile anti-collision beam, which comprises a cross beam 1, a first shock absorption piece 2, a second shock absorption piece 3 and two longitudinal beams 4, wherein the cross beam 1 comprises an outer beam 11, a foam layer 12, an inner beam 13 and an anti-collision plate 14, the first shock absorption piece 2 comprises a shock absorption plate 21, a plurality of sliding rods 22, a plurality of sleeves 23, a plurality of first shock absorption springs 24, a connecting plate 25 and a plurality of buffer blocks 26, the second shock absorption piece 3 comprises a plurality of herringbone rods 31, a plurality of sliding blocks 32, a plurality of second shock absorption springs 33 and a plurality of third shock absorption springs 34, the longitudinal beams 4 comprise longitudinal beam bodies 41, connecting blocks 42, reinforcing ribs 43 and air bags 44, the shock absorption plate 21 comprises a rubber plate 211 and a base plate 212, the cross beam 1 is connected with an automobile body through the connecting plate 25, when the automobile runs in a frontal collision, the anti-collision plate 14 of the cross beam 1 is in collision with the outer beam 11, the inner beam 13 transmits impact vibration to the shock absorption plate 21, the rubber plate 211 of the damping plate 21 is used for primary damping, the foam layer 12 is arranged to enhance the anti-collision damping effect of the cross beam 1, the sliding rod 22 is stressed to slide in the sleeve 23 to impact the buffer block 26, the buffer block 26 is arranged to further consume the impact of the sliding rod 22, the distance between the damping plate 21 and the connecting plate 25 is reduced, so that the first damping spring 24 is compressed and deformed to consume the impact vibration for the second time, at the same time, the herringbone rod 31 rotates and pushes the sliding blocks 32 at two sides to slide on the connecting plate 25, the sliding blocks 32 slidably press the second damping spring 33 and stretch the third damping spring 34, the impact vibration is consumed again through the deformation of the second damping spring 33 and the third damping spring 34, and the rest impact vibration of the cross beam 1 is transmitted to the longitudinal beam 4, finally, the longitudinal beam body 41 and the air bag 44 are consumed, the cross beam 1 is used for preventing collision, the first damping piece 2, the second damping piece 3 and the longitudinal beam 4 are matched, multiple damping and buffering are achieved, and direct impact force on a vehicle body is reduced, so that safety of automobile mechanisms and personnel in a vehicle is guaranteed, and the problems that an existing automobile collision-preventing beam is poor in anti-seismic and buffering effects and cannot meet current requirements are solved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An automobile anti-collision beam is characterized in that,
the damping device comprises a cross beam, a first damping part, a second damping part and two longitudinal beams, wherein the first damping part comprises a damping plate, a plurality of sliding rods, a plurality of sleeves, a plurality of first damping springs and a connecting plate, the damping plate is fixedly connected with the cross beam and positioned on one side of the cross beam, the plurality of sliding rods are respectively fixedly connected with the damping plate and positioned on one side of the damping plate away from the cross beam, the plurality of sleeves are respectively in sliding connection with the sliding rods and positioned on one side of the sliding rods away from the damping plate, the connecting plate is fixedly connected with the sleeves and positioned on one side of the sleeves away from the sliding rods, the plurality of first damping springs are respectively sleeved on the plurality of sleeves and positioned between the damping plate and the connecting plate, the second damping part comprises a plurality of herringbone rods, a plurality of sliding blocks and a plurality of second damping springs, and the plurality of herringbone rods are fixedly connected with the damping plate, the first damping springs are fixedly connected with the sliding blocks respectively, fixedly connected with the connecting plate and between the second damping springs and the connecting plate, and the two longitudinal beams are fixedly connected with the cross beam respectively and are positioned on one side of the cross beam close to the first damping part.
2. An impact beam for vehicles as defined in claim 1,
the crossbeam includes outer roof beam, foam blanket and inner beam, the inner beam with damper plate fixed connection, and be located the damper plate is kept away from slide bar one side, the foam blanket with inner beam fixed connection, and be located the inner beam is kept away from damper plate one side, the outer roof beam with foam blanket fixed connection, and be located the foam blanket is kept away from inner beam one side.
3. An impact beam for vehicles as defined in claim 2,
the beam further comprises an anti-collision plate, the anti-collision plate is fixedly connected with the outer beam and is positioned on one side, far away from the foam layer, of the outer beam.
4. An impact beam for vehicles as defined in claim 2,
the damping plate comprises a rubber plate and a base plate, the rubber plate is fixedly connected with the inner beam and located on one side of the foam layer, the rubber layer is provided with a plurality of bulges, the bulges are located on one side of the inner beam, the base plate is fixedly connected with the rubber plate and located on one side of the inner beam, and the rubber plate is located on one side of the inner beam.
5. An impact beam for vehicles as defined in claim 1,
the first damping piece further comprises a plurality of buffer blocks, and the buffer blocks are fixedly connected with the sleeves respectively and are located in the sleeves.
6. An impact beam for vehicles as defined in claim 1,
the second damping piece further comprises a plurality of third damping springs, and the third damping springs are fixedly connected with the herringbone rods respectively and located between the herringbone rods.
7. An impact beam for vehicles as defined in claim 1,
the longitudinal beam comprises a longitudinal beam body and a connecting block, the connecting block is fixedly connected with the cross beam and is located at one side of the first damping piece, the cross beam body is connected with the connecting block in a sliding mode and is located at one side of the cross beam, and the connecting block is far away from one side of the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041965.1A CN113771789A (en) | 2021-09-07 | 2021-09-07 | Automobile anti-collision beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041965.1A CN113771789A (en) | 2021-09-07 | 2021-09-07 | Automobile anti-collision beam |
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| Publication Number | Publication Date |
|---|---|
| CN113771789A true CN113771789A (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111041965.1A Pending CN113771789A (en) | 2021-09-07 | 2021-09-07 | Automobile anti-collision beam |
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| CN (1) | CN113771789A (en) |
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| CN209904706U (en) * | 2019-04-02 | 2020-01-07 | 南京交通职业技术学院 | Front anti-collision beam of automobile |
| CN110789482A (en) * | 2019-12-02 | 2020-02-14 | 苏超 | Protection device for new energy automobile |
| CN213384153U (en) * | 2020-11-05 | 2021-06-08 | 马兰 | Automobile impact buffer device |
| CN213442778U (en) * | 2020-07-21 | 2021-06-15 | 扬州新东方金属材料制造有限公司 | Front collapsing type anti-collision frame |
| CN213799534U (en) * | 2020-12-17 | 2021-07-27 | 苏州新中达汽车饰件有限公司 | Automobile bumper with multiple protection |
| CN214084135U (en) * | 2020-11-21 | 2021-08-31 | 丹阳市联创汽车附件有限公司 | Novel C-shaped multi-pivot rear anti-collision steel beam |
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2021
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| US20070284895A1 (en) * | 2006-05-17 | 2007-12-13 | Avelda S.R.I. | Vehicle bumper assembly and associated vehicle comprising this bumper assembly |
| CN206569034U (en) * | 2017-01-22 | 2017-10-20 | 徐欢 | A kind of anticollision girder construction of oil truck |
| CN206900312U (en) * | 2017-07-03 | 2018-01-19 | 常州工程职业技术学院 | A kind of multiple-protection high security bumper |
| CN207657776U (en) * | 2017-12-25 | 2018-07-27 | 江苏三明航空电器有限公司 | A kind of buffer vehicle beam |
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| CN214084135U (en) * | 2020-11-21 | 2021-08-31 | 丹阳市联创汽车附件有限公司 | Novel C-shaped multi-pivot rear anti-collision steel beam |
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