CN114688193A - Buffering shock-absorbing structure based on paper folding principle - Google Patents
Buffering shock-absorbing structure based on paper folding principle Download PDFInfo
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- CN114688193A CN114688193A CN202210433092.7A CN202210433092A CN114688193A CN 114688193 A CN114688193 A CN 114688193A CN 202210433092 A CN202210433092 A CN 202210433092A CN 114688193 A CN114688193 A CN 114688193A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/377—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having holes or openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
- F16F1/52—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded in combined stresses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Child & Adolescent Psychology (AREA)
- Vibration Dampers (AREA)
Abstract
The utility model provides a buffering shock-absorbing structure based on paper folding principle, relates to buffering damping device technical field, including last bearing plate, deformation energy-absorbing module, base, deformation energy-absorbing module sets up between last bearing plate and base, deformation energy-absorbing module include 3 basic module that are equilateral triangle and place, basic module be flexible paper folding structure, and the top of basic module and last bearing plate fixed surface be connected, the last fixed surface of bottom and base is connected. The invention provides a buffering and damping structure based on a paper folding principle, solves the problems of poor adaptability, low space utilization rate, difficult installation and movement and the like of the traditional damping device, and has practical and wide application in the directions of damping of precise instruments, protection of human skeletons and the like.
Description
Technical Field
The invention relates to the technical field of buffering and damping devices, in particular to a buffering and damping structure based on a paper folding principle.
Background
Along with the bringing of the intelligent era, more and more precision instruments are applied to the industrial production field, and in the transportation and use process of the precision instruments, the reliable buffering and damping device is provided, so that the precision instruments can be prevented from being damaged, and the precision in the use process is effectively guaranteed. The existing buffering and damping structures are divided into the following categories:
1. spring type shock absorber
Spring damper is the most common buffering damping device now, realizes buffering absorbing effect through the deformation of spring, can control torsional vibration well. But it can only play the effect of buffering shock attenuation in single direction to use the scene single, the dismouting is complicated, and easy inefficacy under long-term vibrations condition, and the durability is poor.
2. Hydraulic shock absorber
The hydraulic buffer is a device which converts mechanical energy brought by impact into heat energy and pressure energy by using viscous damping action of flowing oil, prolongs the impact action time and slows down the impact and protects the stable operation of the device. It relies on hydraulic damping to cushion the speed reduction to stopping to the object that acts on it, plays certain degree's guard action, can prevent effectively that rigid collision from leading to the mechanism to damage in the course of the work. However, in the using process, hydraulic oil is easy to leak, the buffering and damping functions are easy to lose, the performance is unstable, the manufacturing cost is high, and the cost performance is low.
3. Dynamic vibration absorber
The dynamic vibration absorber absorbs the vibration energy of the object by using the resonance system to reduce the vibration of the object, and the device attached to the vibrating object can effectively reduce the vibration of the object. However, such devices are complex and fail when the object vibrates significantly.
4. Magneto-rheological damper
The magneto-rheological shock absorber utilizes electromagnetic reaction, uses a magnetic soft particle suspension liquid, and injects the liquid into an electromagnetic coil in a shock absorber piston, and the magnetic field of the coil can generate fluid resistance, so that damping force with rapid reaction and strong controllability is generated, and the effect of buffering and shock absorption is achieved. The magnetorheological damper has the advantages of continuously adjustable damping, high response speed, simple structure, low cost, high reliability and the like, but compared with the traditional hydraulic damper, the magnetorheological damper has the advantages that the additional energy consumption problem is not ignored, and the damping device can interfere a precision instrument due to the electromagnetic device, so that the environment adaptability is poor.
Therefore, the existing buffering and damping device cannot simultaneously have the characteristics of multi-dimensional multi-direction simultaneous damping, simple structure, no electromagnetic interference and the like, and cannot meet the damping requirements in the transportation and working scenes of precision instruments.
Disclosure of Invention
The invention provides a buffering and damping structure based on a paper folding principle, solves the problems of poor adaptability, low space utilization rate, difficult installation and movement and the like of the traditional damping device, and has practical and wide application in the directions of damping of precise instruments, protection of human skeletons and the like.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a buffering shock-absorbing structure based on paper folding principle, includes bearing plate, deformation energy-absorbing module, base, deformation energy-absorbing module sets up between last bearing plate and base, deformation energy-absorbing module include 3 basic modules that are equilateral triangle and place, basic module be flexible paper folding structure, and the top of basic module and last bearing plate fixed surface be connected, the upper surface fixed connection of bottom and base.
Preferably, the basic module comprises 3 fastening positioning frames and 2 deformation energy-absorbing films, and each deformation energy-absorbing film is provided with 8 stability-enhancing limiting panels; 3 fastening locating frames are arranged along the upper and lower direction, 2 deformation energy-absorbing films are formed by a paper folding process and are provided with buffer shock-absorbing cylinders with upper and lower ends opened, 1 buffer shock-absorbing cylinder is arranged between every two adjacent 2 fastening locating frames respectively, the upper end and the lower end of each buffer shock-absorbing cylinder are fixedly connected with the end parts of the corresponding fastening locating frames respectively, and the stability-increasing limiting embedded plates are fixedly connected with the surfaces of the deformation energy-absorbing films.
Preferably, the fastening and positioning frame is a regular quadrilateral frame, and the deformation energy-absorbing film is of a parallelogram structure.
Preferably, the manufacturing method of the damping cylinder comprises the following steps: a1, dividing 2 long sides 4 of a parallelogram structure equally, digging grooves on the inner surface of the deformation energy-absorbing film along the connecting lines of the equant points which correspond to each other one by one, and forming 3 first grooves parallel to the side edges of the parallelogram structure, wherein the parallelogram structure is divided into 4 smaller parallelogram structures by the first grooves; step A2, digging grooves on the outer surface of the deformation energy absorption film along the longer diagonal of the smaller parallelogram structures, and forming 4 second grooves, wherein each smaller parallelogram structure is divided into 2 triangular areas by the second grooves; step A3, digging a triangular hole in each triangular area; step A4, embedding a stability-increasing limit panel matched with each triangular hole in shape and size, and fixing the stability-increasing limit panel by matching glue-permeable bodies with adhesives; step A5, folding the deformation energy-absorbing film into a cylindrical structure along the first groove, and fixing 2 short edges of the deformation energy-absorbing film through glue-infiltrated bodies and matching adhesives.
Preferably, the manufacturing method of the basic module comprises the following steps: step B1, 2 deformation energy absorption films with length and size matched with the perimeter of the fastening positioning frame are used for manufacturing 2 buffering shock absorption cylinders; step B2, slotting the upper end and the lower end of the 3 fastening positioning frames, and forming clamping grooves matched with the shape and the size of the upper end and the lower end of the buffering damping cylinder; step B3, clamping the clamping grooves on the lower surfaces of 1 of the fastening positioning frames with the upper ports of 1 of the buffering shock-absorbing cylinders, and clamping the clamping grooves on the upper surfaces of the other fastening positioning frames with the lower ports of the buffering shock-absorbing cylinders; step B4, clamping the upper port of another buffer damping cylinder with the clamping groove on the lower surface of the other fastening positioning frame, and clamping the last fastening positioning frame at the lower port of the buffer damping cylinder, wherein in the process, 2 buffer damping cylinders are symmetrically arranged relative to the middle fastening positioning frame; and step B5, bonding and fixing the clamping position of the buffer damping cylinder and the fastening positioning frame in a glue-permeating body matched adhesive fixing mode.
Preferably, the preparation method of the buffering and shock-absorbing structure comprises the following steps: step C1, preparing 3 basic modules, placing the 3 basic modules on the upper surface of the base in a regular triangle shape, and adhering and fixing the bottom ends of the basic modules and the upper surface of the base in a glue infiltration body matched adhesive fixing mode; and C2, covering the upper bearing plate, and adhering and fixing the top end of the basic module and the lower surface of the upper bearing plate in a manner of glue penetration and adhesive matching.
Preferably, the deformation energy absorption film is a flexible soft film made of TPU material.
Preferably, the stability augmentation limiting panel is made of stainless steel or nylon or resin materials.
Preferably, the side of the stability augmentation limiting panel is parallel to the side of the corresponding triangular area.
Preferably, the fastening and positioning frame is made of a resin material.
The invention discloses a buffering and damping structure based on a paper folding principle, which has the beneficial effects that:
(1) the buffering and damping structure mainly uses the advantages of a paper folding structure for reference, converts the kinetic energy of a load into the strain energy of the device through the deformation of the flexible material, can meet the deformation of multiple degrees of freedom while ensuring the strength, has strong angle tolerance and realizes the effect of multi-dimensional damping;
(2) the invention does not need external drive, does not use any electromagnetic component, so does not interfere with the precision instrument;
(3) the material of the fastening positioning frame is resin, the deformation energy absorption film is made of TPU, the material of the stability-enhancing limiting panel is stainless steel, and the stability-enhancing limiting panel can be replaced by more corrosion-resistant rigid materials such as nylon, resin and the like, so that the stability-enhancing limiting panel has reliability in a corrosive environment;
(4) this product has opened up a new research thinking and thinking mode in buffering shock attenuation field, and the joining of paper folding structure has solved most bradyseism devices and has only can play the painful point of buffering shock attenuation effect at a degree of freedom, makes it have extensive application scene.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural diagram of a basic module of the present invention;
FIG. 4 is a schematic view of the outer surface of a deformation energy absorbing film of the present invention;
FIG. 5 is a schematic view of the inner surface of a deformable energy absorbing film of the present invention;
FIG. 6 is a schematic view of the cushion damper cylinder of the present invention;
FIG. 7 is a schematic diagram illustrating deformation of the basic module of the present invention by an axial force;
FIG. 8 is a schematic diagram of deformation of the basic module of the present invention subjected to an axial torque;
FIG. 9 is a schematic diagram of deformation of the basic module of the present invention subjected to an axial torque;
FIG. 10, the reverse rebound force versus axial compression curve (F-x curve) of the present invention;
1. an upper bearing plate; 2. a base; 3. a base module; 31. tightly fixing the positioning frame; 32. a stability-enhancing limit panel; 33. a deformation energy-absorbing film; 331. a triangular hole; 332. a second groove; 333. a first groove.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
Examples 1,
The utility model provides a buffering shock-absorbing structure based on paper folding principle, as shown in fig. 1-9, includes last bearing plate 1, deformation energy-absorbing module, base 2, deformation energy-absorbing module sets up between last bearing plate 1 and base 2, deformation energy-absorbing module include 3 basic module 3 that are equilateral triangle and place, basic module 3 be flexible paper folding structure, and basic module 3's top and last bearing plate 1 fixed surface are connected, the last fixed surface of bottom and base 2 is connected.
In this embodiment, the basic module 3 may be a flexible paper folding structure of various shapes, and the damping and buffering effects are realized by the flexible paper folding structure.
Examples 2,
On the basis of embodiment 1, the present embodiment is improved as follows:
as shown in fig. 1-9, the basic module 3 includes 3 fastening positioning frames 31, 2 deformation energy-absorbing films 33, and each deformation energy-absorbing film 33 is provided with 8 stability-enhancing retainer panels 32; 3 fastening frame 31 is arranged along upper and lower direction, and 2 deformation energy-absorbing membrane 33 constitutes the open buffering damper cylinder in upper and lower end by the paper folding technology, sets up 1 buffering damper cylinder between 2 adjacent fastening frame 31 respectively, the upper and lower end of buffering damper cylinder respectively with the tip fixed connection of the fastening frame 31 that corresponds, increase steady spacing panel 32 and deformation energy-absorbing membrane 33's fixed surface be connected.
In this embodiment, the fastening positioning frame 31 may be set to be square, circular or other shapes as required, the damping cylinder may be set to be cubic, cylindrical or other shapes as required, and the stability-enhancing limiting panel 32 may be directly adhered to the surface of the deformation energy-absorbing film 33, including the inner surface or the outer surface, or may be fixed to the deformation energy-absorbing film by a slotted embedding method. The stability enhancing retainer panel 32 and the slot matching with it may be square, triangular or other shaped structures, and is not limited to triangular.
Examples 3,
On the basis of embodiment 2, the present embodiment is improved as follows:
as shown in fig. 1 to 9, the fastening and positioning frame 31 is a regular quadrilateral frame, the deformation energy-absorbing film 33 is a parallelogram structure, and the manufacturing method of the damping cylinder comprises the following steps: step A1, dividing 2 long sides 4 of a parallelogram structure equally, digging grooves on the inner surface of the deformation energy-absorbing film 33 along the connecting line of the equant points which correspond to each other one by one, and forming 3 first grooves 333 which are parallel to the side edges of the parallelogram structure, wherein the parallelogram structure is divided into 4 smaller parallelogram structures by the first grooves 333; step A2, grooving the outer surface of the deformation energy absorption film 33 along the longer diagonal of the smaller parallelogram structures, and forming 4 second grooves 332, wherein each smaller parallelogram structure is divided into 2 triangular areas by the second grooves 332; step A3, digging a triangular hole 331 in each triangular area; step A4, embedding a stability augmentation limit panel 32 matched with the shape and size of each triangular hole 331, and fixing the stability augmentation limit panel through the matching of a permeable colloid and an adhesive; step A5, folding the deformation energy-absorbing film 33 into a cylindrical structure along the first groove 333, and fixing 2 short edges of the deformation energy-absorbing film 33 by glue-infiltrated body and adhesive.
Examples 4,
On the basis of embodiment 3, the present embodiment is improved as follows:
as shown in fig. 1 to 9, the manufacturing method of the basic module 3 includes: step B1, 2 deformation energy absorption films 33 with the length and the size matched with the perimeter of the fastening and positioning frame 31 are used for manufacturing 2 buffer shock absorption cylinders; step B2, slotting the upper end and the lower end of the 3 fastening positioning frames 31, and forming clamping grooves matched with the shape and the size of the upper end and the lower end of the buffering damping cylinder; step B3, clamping the clamping grooves on the lower surfaces of 1 of the fastening positioning frames 31 with the upper ports of 1 of the buffering damping cylinders, and clamping the clamping grooves on the upper surfaces of the other fastening positioning frames 31 with the lower ports of the buffering damping cylinders; step B4, clamping the upper port of the other buffer damping cylinder with the clamping groove on the lower surface of the other fastening positioning frame 31, and clamping the last fastening positioning frame 31 at the lower port of the buffer damping cylinder, wherein in the process, 2 buffer damping cylinders are symmetrically arranged relative to the middle fastening positioning frame; and step B5, bonding and fixing the buffer damping cylinder and the clamping position of the fastening and positioning frame 31 in a manner of glue permeation and adhesive matching fixation.
Examples 5,
On the basis of embodiment 4, the present embodiment is improved as follows:
as shown in fig. 1 to 9, the method for preparing the buffering and shock-absorbing structure comprises the following steps: step C1, preparing 3 basic modules 3, placing the 3 basic modules 3 on the upper surface of the base 2 in a regular triangle shape, and bonding and fixing the bottom ends of the basic modules 3 and the upper surface of the base 2 in a glue infiltration body matched adhesive fixing mode; and step C2, covering the upper bearing plate 1, and adhering and fixing the top end of the basic module 3 and the lower surface of the upper bearing plate 1 in a manner of fixing by glue-permeable body matched with adhesive.
Examples 6,
On the basis of the above embodiment, the present embodiment is modified as follows:
the deformation energy absorption film 3 is a flexible soft film made of TPU material.
The stability augmentation limit panel 32 is made of stainless steel or nylon or resin material.
The sides of the stability-enhancing retainer panels 32 are parallel to the sides of the corresponding triangular regions.
The fastening positioning frame is made of resin materials.
The buffering and damping principle of the invention is as follows:
1. buffering axial force: as shown in fig. 7, the line defining the center of the fastening frame is an axial direction. When the buffering and shock-absorbing structure is extruded in the axial direction, the distance between the fastening and positioning frames is reduced, the included angle between each triangular area surface inside the deformation energy-absorbing film and the plane of the fastening and positioning frame is reduced, and meanwhile, the flexible triangular area surface of the deformation energy-absorbing film deforms by taking the plane of the stability-increasing limit panel as a reference, namely, the deformation energy-absorbing film except the side contacted with the fastening and positioning frame is linearly extended along the side line of the stability-increasing limit panel nearby. At the moment, the triangular area surface of the deformation energy absorption film extends under the condition of rigid constraint of the stability-enhancing limit panel and the fastening and positioning frame, and absorbs the axial extrusion energy. When the extrusion die is observed from the axial direction, the middle fastening and positioning frame drives the triangular surfaces of the two attached deformation energy absorption films to rotate by a certain angle, and the two fastening and positioning frames on the two sides move to be close to each other in a translation mode.
2. Buffering axial moment: as shown in fig. 8 and 9, when an impact with an axial moment is applied to the shock absorbing structure, one of the two deformation energy absorbing films is deformed to absorb the energy of the impact. When the fastening and positioning frame rotates clockwise when being squeezed, the moment is the torsional deformation of the upper deformation energy-absorbing film unit (figure 8). On the contrary, when the moment is negative, the lower deformation energy-absorbing film unit generates torsional deformation (figure 9). The other deformation energy-absorbing film slightly expands in shape in the same direction as the moment and slightly enlarges in size, and the two fastening positioning frames connected with the other deformation energy-absorbing film basically do not relatively displace. And because of obvious deformation, the two fastening positioning frames (with one common fastening positioning frame) connected with the deformation energy-absorbing film rotate a certain angle when viewed from the axial direction, the common fastening positioning frame basically does not displace, and the central distance between the two fastening positioning frames is reduced.
3. Buffering horizontal force: when the buffer damping mechanism is subjected to impulse perpendicular to the axial direction, the deformation energy absorption film near the lower bearing plate deforms and has a certain torsion effect, and the form of the buffer damping mechanism is similar to the form of the buffer damping mechanism subjected to axial moment. The difference is that the deformation-absorbing film which expands in the above case does not expand centrosymmetrically in this case, but the triangular area faces of the deformation-absorbing film are slightly collapsed in the direction of the impulse, and a small amount of deformation occurs.
In summary, the invention has the following advantages:
A. multi-dimensional shock absorption
Utilize the coupling compression of axial triangle-shaped mantle to realize the vertical direction shock attenuation, the paper folding twists reverse and can realize the counter moment shock attenuation to make up the buffering shock attenuation of each direction from this, solved traditional buffering damping device and can only realize the disadvantage of bradyseism effect in single direction, not only be applicable to more extensive bradyseism scene, also demonstrate more excellent bradyseism effect.
B. Modular design
Based on the paper folding structure units, through modularized combination, such as combination modes of symmetrical placement, triangular placement and the like, targeted combination is carried out in different modes according to the difference between the load size and the use environment, and the product adaptability is good.
C. Personalized customization
Due to the consideration of the size and the height of the fixed positioning frame, the size and the embedding mode of the stability-increasing limiting embedding plate, when product parameters are changed, the cushioning performance of the module can be changed, the cushioning structures with different parameters are customized by combining specific scenes, the win-win situation of cost performance and cushioning effect can be realized, and the personalized customization prospect of the product is wide.
D. Without external drive
The basic principle of the shock absorption and energy absorption of the product is that the flexible material absorbs energy through strain, and the kinetic energy of an external load is converted into the strain energy inside the flexible material through a paper folding structure. Compared with a dynamic vibration absorber, the product has higher reliability, and compared with a hydraulic buffer, the product gets rid of the encumbrance of additional driving.
E. Is suitable for corrosion-resistant environment
The material of the tight fixing frame is TPU (thermoplastic polyurethanes) with the Shore hardness of 30, the material of the stability-increasing limiting panel is stainless steel, the stability-increasing limiting panel can be replaced by more corrosion-resistant rigid materials such as nylon and resin, the raw materials are easy to obtain, the preparation is easy, and the cost performance of the product is high.
Experiments show that when the product is subjected to load impact for 1000 times, the inherent motion form can be still realized, the shock absorption effect is good, and the stability and robustness of the product are good.
In the design, the addition of the paper folding structure is the greatest innovation point, the ever-changing paper folding structure in the existing scientific field presents abundant space geometric principles and practical values, and the unique paper folding structure can enable the buffering damping mechanism to realize novel motion forms and get rid of the constraint of the traditional pure rigid body in a single motion form. In addition, in the invention, the organic fusion of the rigid material and the flexible material is also a great characteristic, and the product characteristics of rigidity and flexibility enable the material to have the advantages of high strength and good stability of the rigid structure, high freedom degree and good robustness of the flexible material, and the cushioning effect is better. From buffering absorbing field, this product has broken away from traditional bradyseism device's constraint, has opened up a new research thinking and thinking mode in buffering absorbing field, and the problem that most bradyseism devices can only play buffering shock attenuation effect in a direction has been solved in the joining of paper folding structure, makes it can be adapted to more application scenes.
An example of an application scenario is:
1. can be used for cushioning the medical trolley. Because the device has two stable states, the reset quantity is small, the amplitude is small, and the damage to the patient caused by bumping on the mountainous area on the way of medical treatment can be reduced.
2. Can be used for cushioning fragile articles. Because the product uses flexible materials as the energy absorbing element and has the unique mechanical property of the paper folding structure, the shock absorption effect is good, and the shock absorption device can be used for transporting and protecting a plurality of fragile articles such as eggs, mobile phones, fruits and the like and easily damaged articles.
3. Can be used for shock absorption in the field of rescue and escape. Because the deformation energy-absorbing film and the stability-enhancing limit panel of the product can be separated into the flat plate pieces, the product has the characteristics of small occupied storage space and convenient assembly at ordinary times. Can be used for the escape device which is assembled quickly.
As shown in fig. 10, the basic module of the device has two stable states according to a reverse resilience-axial compression curve (F-x curve), and the characteristic makes the device have wide application prospect. In the case of point a deployment, the shock absorber can provide a larger resilience force no matter the shock absorber is shortened or lengthened, and point a is the minimum value of strain energy; if the load is coincident with the ordinate of the point b, when the damper cylinder starts to be compressed from 0 displacement, two positions have the same reverse rebound force as the load. That is, in an actual scene, if the load size is appropriate, that is, slightly larger than the ordinate of the point b, the device does not automatically return like a spring, but maintains a compressed state after impact, and can 'lock' the absorbed energy.
Claims (10)
1. A buffering shock-absorbing structure based on paper folding principle, characterized by: including last bearing plate, deformation energy-absorbing module, base, deformation energy-absorbing module sets up between last bearing plate and base, deformation energy-absorbing module include 3 be the basic module that equilateral triangle placed, basic module be flexible paper folding structure, and the top of basic module and last bearing plate lower fixed surface be connected, the upper surface fixed connection of bottom and base.
2. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 1, wherein: the basic module comprises 3 fastening positioning frames and 2 deformation energy-absorbing films, wherein each deformation energy-absorbing film is provided with 8 stability-enhancing limiting panels; 3 fastening locating frames are arranged along the upper and lower direction, 2 deformation energy-absorbing films are formed by a paper folding process and are provided with buffer shock-absorbing cylinders with upper and lower ends opened, 1 buffer shock-absorbing cylinder is arranged between every two adjacent 2 fastening locating frames respectively, the upper end and the lower end of each buffer shock-absorbing cylinder are fixedly connected with the end parts of the corresponding fastening locating frames respectively, and the stability-increasing limiting embedded plates are fixedly connected with the surfaces of the deformation energy-absorbing films.
3. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 2, wherein: the fastening and positioning frame is a regular quadrilateral frame, and the deformation energy absorption film is of a parallelogram structure.
4. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 3, wherein: the manufacturing method of the buffer damping cylinder comprises the following steps: step A1, dividing 2 long sides 4 of the parallelogram structure into equal parts, digging grooves on the inner surface of the deformation energy-absorbing film along the connecting lines of the upper equal division points and the lower equal division points which correspond one by one, and forming 3 first grooves which are parallel to the sides of the parallelogram structure, wherein the parallelogram structure is divided into 4 smaller parallelogram structures by the first grooves; step A2, grooving the outer surface of the deformation energy-absorbing film along the longer diagonal of the smaller parallelogram structure, and forming 4 second grooves, wherein each smaller parallelogram structure is divided into 2 triangular areas by the second grooves; step A3, digging a triangular hole in each triangular area; step A4, embedding a stability-increasing limit panel matched with each triangular hole in shape and size, and fixing the stability-increasing limit panel by matching glue-permeable bodies with adhesives; step A5, folding the deformation energy-absorbing film into a cylindrical structure along the first groove, and fixing 2 short edges of the deformation energy-absorbing film through glue-infiltrated bodies and matching adhesives.
5. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 4, wherein: the manufacturing method of the basic module comprises the following steps: step B1, 2 deformation energy absorption films with length and size matched with the perimeter of the fastening positioning frame are used for manufacturing 2 buffering shock absorption cylinders; step B2, slotting the upper end and the lower end of the 3 fastening positioning frames, and forming clamping grooves matched with the shape and the size of the upper end and the lower end of the buffering damping cylinder; step B3, clamping the clamping grooves on the lower surfaces of 1 of the fastening positioning frames with the upper ports of 1 of the buffering shock-absorbing cylinders, and clamping the clamping grooves on the upper surfaces of the other fastening positioning frames with the lower ports of the buffering shock-absorbing cylinders; step B4, clamping the upper port of another buffer damping cylinder with the clamping groove on the lower surface of the other fastening positioning frame, and clamping the last fastening positioning frame at the lower port of the buffer damping cylinder, wherein in the process, 2 buffer damping cylinders are symmetrically arranged relative to the middle fastening positioning frame; and step B5, bonding and fixing the clamping position of the buffer damping cylinder and the fastening positioning frame in a glue-permeating body matched adhesive fixing mode.
6. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 5, wherein: the preparation method of the buffering and shock-absorbing structure comprises the following steps: step C1, preparing 3 basic modules, placing the 3 basic modules on the upper surface of the base in a regular triangle shape, and bonding and fixing the bottom ends of the basic modules and the upper surface of the base in a mode of fixing the base modules by a glue permeation body matched with an adhesive; and C2, covering the upper bearing plate, and adhering and fixing the top end of the basic module and the lower surface of the upper bearing plate in a manner of glue penetration and adhesive matching.
7. A buffering and shock-absorbing structure based on the paper folding principle as claimed in any one of claims 2 to 6, wherein: the deformation energy absorption film is a flexible soft film made of TPU materials.
8. A buffering and shock-absorbing structure based on the paper folding principle as claimed in any one of claims 2 to 6, wherein: the stability augmentation limiting panel is made of stainless steel or nylon or resin materials.
9. A buffering and shock-absorbing structure based on the paper folding principle as claimed in claim 8, wherein: the side edge of the stability augmentation limiting panel is parallel to the side edge of the corresponding triangular area.
10. A buffering and shock-absorbing structure based on the paper folding principle as claimed in any one of claims 2 to 6, wherein: the fastening positioning frame is made of resin materials.
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