Rotary symmetric type oblique pressing resistant paper folding pipe collision energy absorption box

Abstract

The invention discloses a rotational symmetry type oblique pressing resisting paper folding pipe collision energy absorption box, belongs to the technical field of collision energy absorption boxes, and solves the problems that an existing collision energy absorption box is large in initial collision load and low in energy absorption efficiency. The energy absorption box comprises at least one energy absorption box body, the energy absorption box body comprises a wall body, a plurality of energy absorption units are arranged on the wall body in the surrounding direction, and each energy absorption unit comprises a first polygonal paper folding unit and a second polygonal paper folding unit which are the same in structure. The adjacent first polygonal paper folding units and second polygonal paper folding units are alternately arranged in the forward direction and the backward direction correspondingly, and the two first polygonal paper folding units located on the diagonal line of the energy absorption box body are rotationally and symmetrically arranged. Through the diagonal staggered design, the top end corner making contact with the pressure head provides a supporting effect, the two side faces of the top end corner jointly bear loads and are sunken inwards, and therefore deformation occurs according to a preset complete diamond deformation mode with high energy absorption efficiency, and the oblique pressure resisting capacity is provided.

Description

Technical Field

[0001] The invention relates to the technical field of collision energy absorption boxes, and in particular to a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box. Background Art

[0002] The collision energy absorption design of automobiles is a very important aspect of passive protection design. In the current passive protection design of automobiles, bumper systems installed at the front and rear of the automobile are usually used to reduce the damage to the structural frame when the automobile is hit by a low-speed collision, thereby ensuring the safety of passengers and the main structure of the automobile. In order to absorb the kinetic energy of the automobile collision as much as possible, a deformation element, the so-called collision energy absorption box, is often added to the current bumper system design.

[0003] The crash energy absorption box is the main collision energy absorption component installed between the front and rear bumpers and the transverse and longitudinal beams of the car. When a car collides, the energy absorption box can collapse and produce irreversible plastic deformation, realizing the conversion of impact kinetic energy into plastic deformation energy of the material, thus protecting the safety of passengers in the car.

[0004] At present, in the automotive industry, traditional crash energy absorption boxes are mostly square tubes and round tubes. Although this type of crash box is very easy to manufacture, the initial collision load is extremely large when it is impacted, and the energy absorption efficiency of the square tube and round tube during the collapse deformation process is very low, which can easily pose a threat to the body frame and passenger safety. Summary of the invention

[0005] In view of the above problems in the prior art, the present invention provides a rotationally symmetrical anti-oblique pressure origami tube collision energy absorbing box, which solves the problems of large initial collision load and low energy absorption efficiency of the existing collision energy absorbing box.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] Provided is a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box, comprising at least one energy absorption box main body, the energy absorption box main body comprising a wall body which is a flat rectangular shape after unfolding, the wall body being arranged around and adjacent short sides being welded and connected; a plurality of energy absorption units are arranged along the surrounding direction on the wall body, each energy absorption unit comprising a first polygonal origami unit and a second polygonal origami unit of the same structure, adjacent first polygonal origami units and second polygonal origami units being arranged alternately in a positive direction and a reverse direction respectively, and two first polygonal origami units or two second polygonal origami units located on the diagonal of the energy absorption box main body are rotationally symmetrically arranged, wherein the positive direction is the vertical upward direction of the wall body, and the folds between the first polygonal origami unit and the second polygonal origami unit are both peak folds; each first polygonal origami unit comprises at least an isosceles triangle plate and a quadrilateral plate which are connected to each other from top to bottom, wherein the folds between the bottom edge of the isosceles triangle plate and the top edge of the quadrilateral plate are valley folds, and the quadrilateral plate is in an isosceles trapezoidal shape or a rectangular shape.

[0008] In this solution, since the first polygonal origami unit and the second polygonal origami unit on the energy absorbing box body are rotationally symmetrically arranged, a diagonal misalignment design is formed. The diagonal misalignment design enables the top corner of the energy absorbing box body in contact with the pressure head to provide support, so that the two sides of the top corner jointly bear the load and are concave inward, thereby deforming according to the preset complete diamond deformation mode with high energy absorption efficiency, so that the energy absorbing box has a stronger ability to resist oblique pressure. Compared with ordinary rectangular cross-section tubes, that is, traditional square tubes, the peak folds and valley folds brought by the preset rotationally symmetrical energy absorbing units can exist as mobile initial defects, guiding the energy absorbing box to undergo preset deformation, and significantly reducing the initial buckling load compared to the traditional square tube structure under positive pressure conditions. At the same time, as the energy absorbing box continues to deform, the average force gradually increases, thereby achieving the purpose of reducing the initial peak load, increasing the average force, improving the collision load efficiency, and increasing the specific energy absorption.

[0009] Furthermore, each first polygonal origami unit comprises, from top to bottom, an isosceles triangular plate, a quadrilateral plate and an isosceles trapezoidal plate that are interconnected, and the folds between the top edge of the isosceles trapezoidal plate and the bottom edge of the quadrilateral plate are peak folds.

[0010] Furthermore, the dimensional relationship in each energy absorbing unit is:

[0011]

[0012] Among them, a1 and b1 are the top side length and bottom side length of the quadrilateral plate in the second polygonal origami unit respectively; a2 and b2 are the top side length and bottom side length of the quadrilateral plate in the first polygonal origami unit respectively; h1 is the height of the isosceles triangular plate in the first polygonal origami unit and the height of the isosceles trapezoidal plate in the second polygonal origami unit; h2 is the height of the quadrilateral plate in the first polygonal origami unit and the height of the quadrilateral plate in the second polygonal origami unit; h3 is the height of the isosceles trapezoidal plate in the first polygonal origami unit and the height of the isosceles triangular plate in the second polygonal origami unit; H is the height of the energy absorbing unit and the energy absorbing box body; α is the folding angle between the isosceles trapezoidal plate and the quadrilateral plate in the first polygonal origami unit, and the folding angle between the triangular plate and the quadrilateral plate in the second polygonal origami unit; β is the folding angle between the quadrilateral plate and the isosceles triangular plate in the first polygonal origami unit, and the folding angle between the quadrilateral plate and the isosceles trapezoidal plate in the second polygonal origami unit.

[0013] In this scheme, with the increase of the height ratio h1(h2) / h3, the initial peak force of the energy absorbing box at different impact angles increases significantly; for the average force, the energy absorbing box increases with the increase of the crease height ratio h1(h2) / h3, and after the height ratio reaches 11 / 8, the average force changes gradually; the load crushing efficiency exceeds 100% when the height ratio is less than 1 / 2, but decreases significantly with the increase of the height ratio, and then the energy absorption performance of the energy absorbing box decreases; with the increase of the crease length ratio a1(b1) / a2(b2), α and β gradually increase, the initial stiffness of the energy absorbing box decreases, and the initial peak force at different impact angles decreases; with the increase of the crease ratio, the ability of the edge corresponding to the crease a2(b2) to guide deformation is enhanced, and the average force continues to increase; similarly, the load crushing efficiency also increases with the increase of the crease length ratio.

[0014] Furthermore, in each energy absorbing unit, a1=b1, a2=b2.

[0015] Furthermore, in each energy absorbing unit, a1>b1, a2>b2.

[0016] Furthermore, in each energy absorbing unit, a2>a1, b2>a1.

[0017] Furthermore, the number of the energy absorbing box bodies is at least two, and the end faces of two adjacent energy absorbing box bodies are fixedly connected and mirror-imaged along the fixed end faces.

[0018] Furthermore, the end faces of two adjacent energy absorption box bodies are fixed by welding, molding or bonding.

[0019] The invention discloses a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box, which has the following beneficial effects:

[0020] 1. The present invention has a lower initial collision load and a higher average collision load. The supporting effect of the peak creases and the valley creases makes the deformation of the energy absorption box more stable and progressively deforms, which has a higher energy absorption efficiency. The diagonal staggered design enables the top corner of the energy absorption box in contact with the pressure head to provide support, so that the two sides of the top corner bear the load together and are concave inward, thereby deforming according to a preset complete diamond deformation mode with high energy absorption efficiency, so that the energy absorption box has a stronger ability to resist oblique pressure.

[0021] 2. The present invention changes the size of the energy absorption box by changing the geometric size of the rotationally symmetrical pattern and the height of each layer, thereby enhancing the designability of the structure and obtaining energy absorption boxes with different energy absorption effects.

[0022] 3. The energy absorption box body of the present invention is a thin-walled tube of a special shape formed by introducing peak folds and valley folds with a concave-convex plane with a rotationally symmetrical pattern on the tube wall of an ordinary thin-walled tube. The obvious feature of the present invention is that its corners and sides are respectively an isosceles triangle folded inward and concave along the axial direction, a quadrilateral parallel to the axial direction or convex outward, and an isosceles trapezoid folded inward and concave along the axial direction. The heights of the three layers along the axial direction can be the same or different, and the double-layer structure obtained by removing one layer can also be used as the minimum unit of the energy absorption box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a plane development diagram of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box;

[0024] Figure 2 It is a schematic diagram of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box after being formed;

[0025] Figure 3 It is a schematic diagram of the force-displacement curve comparison between a rotationally symmetrical origami tube collision energy absorption box and a traditional square tube energy absorption box under positive pressure load;

[0026] Figure 4 It is a schematic diagram showing the force-displacement curve comparison between the rotationally symmetrical anti-oblique pressure origami tube collision energy absorbing box, the traditional square tube energy absorbing box, and the diamond folded tube energy absorbing box under oblique pressure load;

[0027] Figure 5 It is a structural schematic diagram of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box;

[0028] Figure 6 It is a structural schematic diagram of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box;

[0029] Figure 7 It is a structural schematic diagram of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box;

[0030] Figure 8A schematic diagram of the structure of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box connected with two energy absorption box bodies;

[0031] Fig. 9 A schematic diagram of the structure of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box connected with two energy absorption box bodies;

[0032] Among them, 1. the energy absorption box body; 2. the free boundary of the lower end; 3. the peak fold; 4. the valley fold; 5. the free boundary of the upper end; 6. the isosceles triangle plate; 7. the quadrilateral plate; 8. the isosceles trapezoidal plate. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0034] Example 1

[0035] refer to Figure 1 and Figure 2 The present embodiment provides a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box, comprising at least one energy absorption box body 1, wherein the energy absorption box body 1 comprises a wall body which is a plane rectangular when unfolded, and the wall body is arranged around and adjacent short sides are welded and connected. The top and bottom ends of the wall body are the upper end free boundary 6 and the lower end free boundary 2, respectively.

[0036] A plurality of energy absorbing units are arranged in a surrounding direction along the wall, each energy absorbing unit includes a first polygonal origami unit and a second polygonal origami unit of the same structure, adjacent first polygonal origami units and second polygonal origami units are alternately arranged in a positive direction and a reverse direction respectively, and the two first polygonal origami units or the two second polygonal origami units located on the diagonal of the energy absorbing box body 1 are rotationally symmetrically arranged, wherein the positive direction is the vertical upward direction of the wall, and the folds between the first polygonal origami units and the second polygonal origami units are both peak folds 3.

[0037] Since the first polygonal origami unit and the second polygonal origami unit on the energy absorbing box body 1 are rotationally symmetrically arranged, a diagonal misalignment design is formed. The diagonal misalignment design enables the top corner of the energy absorbing box body 1 in contact with the pressure head to provide support, so that the two sides of the top corner jointly bear the load and are concave inward, thereby deforming according to the preset complete diamond deformation mode with high energy absorption efficiency, so that the energy absorbing box has a stronger ability to resist oblique pressure. And when the pressure head acts on the edge of the energy absorbing box body 1, the lower end corner of the energy absorbing box body 1 can also provide support, that is, if the external load (such as collision impact force) mainly acts on one edge of the energy absorbing box body 1, rather than directly perpendicular to its surface, the design of the energy absorbing box body 1 enables the lower end corner to participate in the process of supporting and resisting the load. This design enhances the effectiveness and stability of the energy absorbing box under multi-directional loads, ensuring that even at unexpected collision angles, it can effectively absorb and disperse energy and reduce the impact on other parts of the vehicle.

[0038] Compared with ordinary rectangular cross-section tubes, that is, traditional square tubes, the peak folds 3 and valley folds 4 brought by the preset rotationally symmetrical energy absorbing units can exist as mobile initial defects, guiding the energy absorbing box to undergo preset deformation, and significantly reducing the initial buckling load compared with the traditional square tube structure under positive pressure conditions. At the same time, as the energy absorbing box continues to deform, the average force gradually increases, thereby achieving the purpose of reducing the initial peak load, increasing the average force, improving the collision load efficiency, and increasing the specific energy absorption.

[0039] Specific reference Figure 3 , Figure 3 The figure is a schematic diagram comparing the force-displacement curves of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorbing box and a traditional square tube energy absorbing box under positive pressure load. It can be found that the rotationally symmetrical anti-oblique pressure origami method, due to the introduction of peak folds 3 and valley folds 4 as initial defects, has a significantly lower initial peak force under positive pressure than that of the traditional square tube, with a reduction of 60.1%. At the same time, the average force borne by the collision energy absorbing box is greatly increased, and the force-displacement curve always maintains a high level after the initial peak, that is, the energy absorption efficiency is greatly improved, with an increase of 42.3%, thereby improving the collision resistance of the energy absorbing box.

[0040] Example 2

[0041] refer to Figure 1 and Figure 2 This embodiment is further limited on the basis of Embodiment 1, and the specific improvement lies in providing the specific structure of the first polygonal origami unit and the second polygonal origami unit. For other parts not mentioned, refer to Embodiment 1 or the prior art.

[0042] Each first polygonal origami unit includes, from top to bottom, an isosceles triangular plate 6, a quadrilateral plate 7 and an isosceles trapezoidal plate 8 that are interconnected. The quadrilateral plate 7 is in the shape of an isosceles trapezoid or a rectangle, and the fold between the top edge of the quadrilateral plate 7 and the wall panel of the isosceles triangular plate 6 is a valley fold 4, and the fold between the bottom edge of the quadrilateral plate 7 and the top edge of the isosceles trapezoidal plate 8 is a peak fold 3.

[0043] This arrangement allows the isosceles triangle plate 6 to fold inwardly and become concave, the quadrilateral plate 7 to bulge outwardly, and the isosceles trapezoidal plate 8 to fold inwardly and become concave, so that the folds between any two of the three regions have peaks and troughs, thereby improving the crash resistance of the energy absorption box.

[0044] Among them, the size relationship formula in each energy absorption unit is:

[0045]

[0046] Among them, a1 and b1 are respectively the top side length and the bottom side length of the quadrilateral plate 7 in the second polygonal origami unit; a2 and b2 are respectively the top side length and the bottom side length of the quadrilateral plate 7 in the first polygonal origami unit; h1 is the height of the isosceles triangular plate 6 in the first polygonal origami unit and the height of the isosceles trapezoidal plate 8 in the second polygonal origami unit; h2 is the height of the quadrilateral plate 7 in the first polygonal origami unit and the height of the quadrilateral plate 7 in the second polygonal origami unit; h3 is the height of the isosceles trapezoidal plate 8 in the first polygonal origami unit and the height of the isosceles triangular plate 6 in the second polygonal origami unit; H is the height of the energy absorbing unit and the energy absorbing box body 1; α is the folding angle between the isosceles trapezoidal plate 8 and the quadrilateral plate 7 in the first polygonal origami unit, and the folding angle between the triangular plate and the quadrilateral plate 7 in the second polygonal origami unit; β is the folding angle between the quadrilateral plate 7 and the isosceles triangular plate 6 in the first polygonal origami unit, and the folding angle between the quadrilateral plate 7 and the isosceles trapezoidal plate 8 in the second polygonal origami unit.

[0047] In this embodiment, with the increase of the height ratio h1(h2) / h3, the initial peak force of the energy absorbing box at different impact angles increases significantly; for the average force, the energy absorbing box increases with the increase of the crease height ratio h1(h2) / h3, and after the height ratio reaches 11 / 8, the average force changes gradually; the load crushing efficiency exceeds 100% when the height ratio is less than 1 / 2, but decreases significantly with the increase of the height ratio, and then the energy absorption performance of the energy absorbing box decreases; with the increase of the crease length ratio a1(b1) / a2(b2), α and β gradually increase, the initial stiffness of the energy absorbing box decreases, and the initial peak force at different impact angles decreases; with the increase of the crease ratio, the ability of the edge corresponding to the crease a2(b2) to guide deformation is enhanced, and the average force continues to increase; similarly, the load crushing efficiency also increases with the increase of the crease length ratio.

[0048] In order to illustrate that the crash resistance of the energy absorption box of this embodiment is higher, it is compared with the invention patent of the inventor's previous publication number CN101638076B - a creased crash energy absorption box. The invention adopts a crash energy absorption box with a diamond-shaped crease pattern. This structure can not only absorb more collision energy, but also has a significantly lower initial collision peak load than the traditional square tube. However, the present invention further improves the crash resistance through the diagonal staggered design.

[0049] Specific reference Figure 4 , Figure 4 This is a schematic diagram comparing the force-displacement curves of the rotationally symmetrical anti-oblique pressure origami tube collision energy absorbing box with the traditional square tube energy absorbing box and the diamond folded tube energy absorbing box under oblique pressure load. It can be found that the rotationally symmetrical diagonal dislocation design origami method, because the top angle can play a supporting role, still deforms according to the preset diamond deformation mode under the oblique pressure state, and the initial peak force is greatly reduced, which is 55.7% lower than the initial peak force of the traditional square tube. At the same time, the average load of the collision energy absorbing box is improved. It is noted that compared with the diamond folded tube energy absorbing box, the average load of the rotationally symmetrical anti-oblique pressure origami tube collision energy absorbing box is also improved. The force-displacement curve always maintains a high level after the initial peak value. Compared with the diamond folded tube energy absorbing box, the average force is increased by 26.4%, which improves the collision resistance of the energy absorbing structure under oblique pressure.

[0050] As a further solution of this embodiment, refer to Figure 5 , in each energy absorbing unit, a1=b1, a2=b2.

[0051] As another solution of this embodiment, refer to Figure 6 , in each energy absorption unit, a1>b1, a2>b2.

[0052] As another solution of this embodiment, refer to Figure 7 , in each energy absorption unit, a1>b1, a2>b2.

[0053] Example 3

[0054] Referring to the figure, this embodiment is further limited on the basis of Embodiment 2, and the specific improvement lies in providing the specific structure of the first polygonal origami unit and the second polygonal origami unit. For other parts not mentioned, refer to Embodiment 1 or the prior art.

[0055] refer to Figure 5 Each first polygonal origami unit includes at least an isosceles triangular plate 6 and a quadrilateral plate 7 connected to each other from top to bottom, wherein the fold between the bottom side of the isosceles triangular plate 6 and the top side of the quadrilateral plate 7 is a valley fold 4, and the quadrilateral plate 7 is in an isosceles trapezoidal or rectangular shape.

[0056] Example 4

[0057] This embodiment is further limited on the basis of the embodiment 2, and the specific improvement is to provide another component structure of a rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box. Other parts not mentioned refer to the embodiment 2 or the prior art.

[0058] refer to Figure 8 and Fig. 9 In this embodiment, the number of energy absorption box bodies 1 is at least two, and the end faces of two adjacent energy absorption box bodies 1 are fixedly connected and mirror-imaged along the fixed end faces. The end faces of two adjacent energy absorption box bodies 1 are fixed by welding, molding or bonding.

[0059] In summary, there are three processing methods in this scheme;

[0060] The first one is processed by integral casting process, using a mold with pre-processed crease lines, wherein the casting material is a metal material or a composite material with good plasticity.

[0061] The second method, considering that the walls of the rotationally symmetrical anti-oblique pressure collision energy absorption box are all expandable, the second processing method is to adopt a 0.5 to 10 mm steel, aluminum or other metal material plate pressing process to obtain it. The second processing method is specifically a processing method that first processes half or part of the energy absorption box body 1, also known as a half shell or a partial shell, and then assembles the two half shells or partial shells into the overall energy absorption box body 1 structure. After each half shell or partial shell is processed and formed, the half shell or partial shell forms overlapping and staggered at the longitudinal edge and is connected to each other by welding, high-strength glue or other methods. In order to reduce processing costs, the half shell or partial shell adopts exactly the same shape, so that only one kind of shell processing equipment is needed in industrial production, and the production process is simplified.

[0062] The third method is to use additive technology to 3D print a rotationally symmetrical anti-oblique pressure collision energy absorption box.

[0063] Although the specific implementation of the invention is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box, characterized in that: It comprises at least one energy absorption box body (1), wherein the energy absorption box body (1) comprises a wall body which is a planar rectangular shape when unfolded, and the wall body is arranged around and adjacent short sides are connected by welding; A plurality of energy absorbing units are arranged along a surrounding direction on the wall, each of the energy absorbing units comprises a first polygonal origami unit and a second polygonal origami unit of the same structure, the adjacent first polygonal origami units and the second polygonal origami units are respectively arranged alternately in a positive direction and a reverse direction, and the two first polygonal origami units or the two second polygonal origami units located on the diagonal of the energy absorbing box body (1) are arranged rotationally symmetrically, wherein the positive direction is the vertical upward direction of the wall, and the folds between the first polygonal origami unit and the second polygonal origami unit are both peak folds (3); Each of the first polygonal origami units comprises at least an isosceles triangular plate (6) and a quadrilateral plate (7) connected to each other from top to bottom, wherein the fold between the bottom edge of the isosceles triangular plate (6) and the top edge of the quadrilateral plate (7) is a valley fold (4), and the quadrilateral plate (7) is in the shape of an isosceles trapezoid or a rectangle.

2. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 1 is characterized in that: Each of the first polygonal origami units comprises, from top to bottom, the isosceles triangular plate (6), the quadrilateral plate (7) and the isosceles trapezoidal plate (8) which are connected to each other, and the fold between the top edge of the isosceles trapezoidal plate (8) and the bottom edge of the quadrilateral plate (7) is a peak fold (3).

3. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 2 is characterized in that: The dimensional relationship of each energy absorbing unit is: Wherein, a1 and b1 are respectively the top side length and bottom side length of the quadrilateral plate (7) in the second polygonal origami unit; a2 and b2 are respectively the top side length and bottom side length of the quadrilateral plate (7) in the first polygonal origami unit; h1 is the height of the isosceles triangular plate (6) in the first polygonal origami unit and the height of the isosceles trapezoidal plate (8) in the second polygonal origami unit; h2 is the height of the quadrilateral plate (7) in the first polygonal origami unit and the height of the quadrilateral plate (7) in the second polygonal origami unit; h3 is the height of the isosceles trapezoidal plate in the first polygonal origami unit. (8) is the height of the isosceles triangle plate (6) in the first polygonal origami unit and the height of the isosceles triangle plate (6) in the second polygonal origami unit; H is the height of the energy absorbing unit and the energy absorbing box body (1); α is the folding angle between the isosceles trapezoidal plate (8) and the quadrilateral plate (7) in the first polygonal origami unit, and the folding angle between the triangle plate and the quadrilateral plate (7) in the second polygonal origami unit; β is the folding angle between the quadrilateral plate (7) and the isosceles triangle plate (6) in the first polygonal origami unit, and the folding angle between the quadrilateral plate (7) and the isosceles trapezoidal plate (8) in the second polygonal origami unit.

4. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 3 is characterized in that: In each of the energy absorbing units, a1=b1, a2=b2.

5. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 3 is characterized in that: In each of the energy absorbing units, a1>b1, a2>b2.

6. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 3 is characterized in that: In each of the energy absorbing units, a2>a1, b2>a1.

7. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 1 is characterized in that: The number of the energy absorption box main bodies (1) is at least two, and the end faces of two adjacent energy absorption box main bodies (1) are fixedly connected and mirror-imaged along the fixed end faces.

8. The rotationally symmetrical anti-oblique pressure origami tube collision energy absorption box according to claim 7 is characterized in that: The end faces of two adjacent energy absorption box bodies (1) are fixed by welding, molding or bonding.

Images