Buffer, vehicle body anti-collision device and mining explosion-proof battery carrier

Abstract

The present invention relates to the technical field of anti-collision structures, and specifically to a buffer, a vehicle body anti-collision device, and a mining explosion-proof battery carrier. The buffer assembly comprises two symmetrically arranged buffer assemblies and an airbag located between the two buffer assemblies. The buffer assembly comprises: a mounting seat made of a rigid metal material, and a first end face of which is provided with a groove adapted to the airbag; an energy absorbing cylinder made of a plastic metal material, fixed to the second end face of the mounting seat; an air rod slidably inserted into the mounting seat and coaxially arranged with the energy absorbing cylinder, one end of the air rod abutting the airbag, and the other end flush with the outer end face of the energy absorbing cylinder; a permanent magnet fixed to the air rod; the first end faces of the two mounting seats are arranged relative to each other and are slidably connected relative to each other, the sliding direction of the mounting seat is parallel to the axial direction of the energy absorbing cylinder, the two grooves limit the airbag, the compressive strength of the airbag is greater than that of the air rod, and the magnetic poles of the two permanent magnets are opposite; when the airbag ruptures and before the two mounting seats come into contact, the two permanent magnets generate a repulsive force.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-collision structures, and in particular to a buffer and a vehicle body anti-collision device. Background Art

[0002] With the development of my country's new energy vehicle industry and the accelerated construction of intelligent mines, an increasing number of explosion-proof battery-powered mining vehicles have been developed and deployed in mines for trackless transportation. As a key piece of trackless transportation equipment in coal mines, these vehicles primarily utilize explosion-proof batteries as their power source. After generating driving force, they rely on rubber tires or tracks to propel the vehicle, transporting personnel and materials. However, due to the complex underground transportation environment in coal mines, vehicles pass through a variety of live equipment, various wires and cables, gas extraction pipelines, and various obstacles during transportation. A collision can cause structural damage to the vehicle at best, or sparks or damage to the explosion-proof battery at worst, leading to secondary disasters and mine transportation safety accidents.

[0003] Existing mining explosion-proof battery carriers mostly rely on rigid protective plates, external elastic rubber and other materials for protection, but this protective structure is only suitable for minor collisions. If the collision force is large and the degree of damage is high, the structure cannot provide sufficient buffering, causing damage to the vehicle body and even sparks to cause serious secondary disasters. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor buffering capacity of the vehicle body anti-collision structure in the prior art, thereby providing a buffer that can provide sufficient buffering force.

[0005] To solve the above technical problems, the present invention provides a buffer and a vehicle body anti-collision device, comprising two symmetrically arranged buffer components and an airbag located between the two buffer components, wherein the buffer components include:

[0006] The mounting seat is made of a rigid metal material, and a first end surface of the mounting seat is provided with a groove adapted to the airbag;

[0007] An energy absorbing cylinder, made of a plastic metal material, fixed to the second end surface of the mounting seat;

[0008] A gas rod is slidably inserted into the mounting seat and is coaxially arranged with the energy absorbing cylinder, with one end of the gas rod abutting against the airbag and the other end being flush with the outer end surface of the energy absorbing cylinder;

[0009] a permanent magnet fixed on the gas rod;

[0010] The first end faces of the two mounting seats are arranged relative to each other and are connected in a relative sliding manner. The sliding direction of the mounting seat is parallel to the axial direction of the energy absorbing cylinder. The two grooves limit the airbag. The compressive strength of the airbag is greater than that of the gas rod. The magnetic poles of the two permanent magnets are opposite. When the airbag ruptures and before the two mounting seats contact, the two permanent magnets generate a repulsive force.

[0011] Optionally, a baffle is fixed to the end of the gas rod away from the airbag, a compression spring is provided between the baffle and the permanent magnet, and the permanent magnet and the baffle are fixed to different sections of the gas rod.

[0012] Optionally, the opposing surfaces of the two mounting seats are provided with engaging teeth.

[0013] Another technical problem to be solved by the present invention is to overcome the defect of poor anti-collision performance of the vehicle body in the prior art, thereby providing a vehicle body anti-collision device and a mining explosion-proof battery carrier.

[0014] In order to solve the above technical problems, the present invention provides a vehicle body anti-collision device, comprising:

[0015] a housing adapted to be mounted in front of a vehicle body and made of a plastic metal material;

[0016] The honeycomb energy absorption chamber is fixed in the shell and is made of plastic metal material. The honeycomb energy absorption chamber includes multiple honeycombs, the length direction of the honeycombs is consistent with the forward direction of the vehicle body, each of the honeycombs is equipped with the aforementioned buffer, and the gas rods are arranged front and back.

[0017] Optionally, also include:

[0018] A support plate is placed in the shell and is made of a rigid metal material, and the honeycomb energy absorption chamber is located between the front end surface of the shell and the support plate;

[0019] The buffer structure is located between the support plate and the rear end surface of the shell, and the compressive strength of the buffer structure is greater than that of the buffer.

[0020] Optionally, the buffer structure includes a Y-shaped shock absorber and / or a shock absorbing spring, and the Y-shaped shock absorber includes:

[0021] A base, fixed on the rear end surface of the shell;

[0022] Two resonant plates, the lower ends of which are hinged to the front end of the base, and the upper ends of which are slidably mounted on the support plate;

[0023] The buffer spring is connected between the two resonant plates, and its expansion and contraction direction is consistent with the sliding direction of the resonant plate relative to the support plate.

[0024] Optionally, the housing is a box structure, comprising:

[0025] rear panel;

[0026] A top plate, fixedly connected to or integrally formed with the rear plate;

[0027] a bottom plate, fixedly connected to or integrally formed with the rear plate;

[0028] two side panels detachably fixed to the rear panel;

[0029] The front plate is detachably fixed to the side plates.

[0030] Optionally, a first clamping block is fixed or integrally formed on the rear portion of the inner walls of the two side panels, and a second clamping block is fixed or integrally formed on the inner wall of the rear panel, the first clamping block and the second clamping block are arranged opposite to each other and grooves are provided on the two opposite surfaces, the two grooves are arranged opposite to each other to form a accommodating cavity, a block is built into the accommodating cavity, the block is placed in the two grooves at the same time and a spring is pressed between the block and the second clamping block, and the spring is arranged in the left and right directions.

[0031] Optionally, the support plate is an arc-shaped plate, the middle part of the arc-shaped plate is convex and the left and right edges are pressed in front of the first clamping block, and a limiting block is fixed or integrally formed on the inner wall of the side plate, and the limiting block is connected to the front side of the arc-shaped plate and the connecting surface is adapted to the surface of the arc-shaped plate, the first clamping block and the stop block are made of plastic metal material, and the second clamping block is made of rigid metal material, and a cutter suitable for cutting the stop block is fixed on the front wall of the groove of the first clamping block, and the cutter is arranged corresponding to the connection position of the two grooves.

[0032] The mining explosion-proof battery carrier provided by the present invention comprises a vehicle body and the aforementioned vehicle body anti-collision device, wherein the vehicle body anti-collision device is installed on the front side of the vehicle body.

[0033] The technical solution of the present invention has the following advantages:

[0034] 1. The buffer provided by the present invention comprises an air rod, an air bag and a permanent magnet. When subjected to an impact force, the air rod first contracts, serving as the first buffer. When the air rod contracts to its limit, the air bag deforms, serving as the second buffer. When the air bag ruptures, the permanent magnet generates a repulsive force, serving as the third buffer. The three buffering mechanisms provide sufficient buffering force, thereby enhancing the buffering capacity.

[0035] 2. The vehicle body anti-collision device provided by the present invention is equipped with a honeycomb energy absorption chamber, and a buffer is placed in each honeycomb, thereby enhancing the anti-collision performance of the vehicle body;

[0036] 3. The vehicle body anti-collision device provided by the present invention has a support plate installed in the housing, a honeycomb energy absorption chamber located in front of the support plate, and a buffer structure installed in the rear of the support plate. The buffer structure has a greater compressive strength than the buffer. When the buffer fails, the buffer structure can further play a buffering role, further enhancing the anti-collision performance of the vehicle body.

[0037] 4. The vehicle body anti-collision device provided by the present invention has a housing whose side panels and rear panel are assembled using a structure in which a block and a stopper cooperate with each other, which has high assembly efficiency and simple operation.

[0038] 5. The vehicle body anti-collision device provided by the present invention has a support plate configured as an arc-shaped plate, and is provided with a cutter and a limit block. When a collision occurs, the arc-shaped plate is driven by force to drive the cutter to partially cut off the block backward, thereby eliminating the limiting effect of the block on the first blocking block. At this time, the two side panels, the front panel and the honeycomb energy absorption chamber are separated from the vehicle body, and fall down under the action of inertia or external force, taking away part of the impact force, thereby avoiding subsequent damage to the vehicle body and enhancing the anti-collision performance of the vehicle body.

[0039] 6. The mining explosion-proof battery carrier provided by the present invention has a vehicle body anti-collision device installed on the front side of the vehicle body, which has good anti-collision performance, can avoid secondary injuries in the mine, and ensure construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 It is a structural schematic diagram of the buffer of the present invention;

[0042] Figure 2 It is a partial structural schematic diagram of the buffer of the present invention;

[0043] Figure 3 Schematic diagram of the internal structure of the vehicle body anti-collision device of the present invention;

[0044] Figure 4 This is a structural layout diagram of the honeycomb energy absorption bin of the present invention;

[0045] Figure 5 Schematic diagram of the structure of the Y-type shock absorber of the present invention;

[0046] Figure 6 for Figure 3 A partial enlarged view of point A in the middle;

[0047] Figure 7This is an outline diagram of the vehicle body anti-collision device of the present invention;

[0048] Figure 8 It is a structural schematic diagram of the mining explosion-proof battery carrier of the present invention.

[0049] Description of reference numerals:

[0050] 11. Mounting seat; 12. Energy absorption tube; 13. Gas rod; 14. Permanent magnet; 15. Block plate; 16. Compression spring; 17. Airbag; 2. Shell; 21. Front plate; 22. Side plate; 23. Top plate; 3. Honeycomb energy absorption chamber; 4. Support plate; 5. Silicone pad; 6. Y-type shock absorber; 61. Base; 62. Resonance plate; 63. Buffer spring; 7. Shock-absorbing spring; 81. First clamping block; 82. Second clamping block; 83. Block; 84. Cutter; 85. Limit block. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] Example 1

[0056] Reference Figure 1 and Figure 2 This embodiment provides a buffer, including two sets of symmetrically arranged buffer components and an airbag 17 located between the two sets of buffer components, the buffer components including:

[0057] The mounting seat 11 is made of a rigid metal material, and a first end surface thereof is provided with a groove adapted to fit the airbag 17;

[0058] The energy absorbing cylinder 12 is made of a plastic metal material and is fixed to the second end face of the mounting seat 11. The terms plastic metal material and rigid metal material are relative. Plastic metal material has poor compressive resistance and is easily deformed under pressure, while rigid metal material has strong compressive resistance and is not easily deformed under pressure. The first end face and the second end face of the mounting seat 11 refer to two end faces in a straight line direction, that is, the first end face and the second end face are arranged opposite each other.

[0059] The gas rod 13 is slidably inserted into the mounting base 11 and is coaxially arranged with the energy absorbing tube 12. One end of the gas rod 13 abuts the airbag 17, and the other end is flush with the outer end surface of the energy absorbing tube 12. The gas rod 13, also known as a gas spring, has a sealed hollow portion inside the rod. The hollow portion is filled with gas with a preset gas pressure and can withstand a certain pressure.

[0060] The permanent magnet 14 is fixed on the gas rod 13;

[0061] The first end faces of the two mounting seats 11 are arranged relative to each other and are connected in a relative sliding manner. The sliding direction of the mounting seat 11 is parallel to the axial direction of the energy absorbing tube 12. The two grooves limit the airbags 17. The compressive strength of the airbags 17 is greater than that of the gas rod 13. The magnetic poles of the two permanent magnets 14 are opposite; when the airbags 17 rupture and before the two mounting seats 11 contact, the two permanent magnets 14 generate a repulsive force.

[0062] Reference Figure 1 and Figure 2 Preferably, in this embodiment, the mounting seat 11 is designed as a hollow cylindrical structure, and the first end face and the second end face are the two axial end faces thereof. In other embodiments, the mounting seat 11 may also adopt other commonly used structures such as a square column or a cone.

[0063] Reference Figure 1 and Figure 2 Preferably, in this embodiment, the energy-absorbing cylinder 12 is designed as a truncated cone, with the smaller-diameter end fixed to the mounting base 11. This structure increases the area affected by the impact force and allows for more stable deformation. In other embodiments, the energy-absorbing cylinder 12 may also adopt common structures such as a cylindrical cylinder or a prism-shaped cone. Specifically, in this embodiment, the energy-absorbing cylinder 12 is further processed into a hollow lattice structure to enhance its deformation capacity.

[0064] Preferably, the electromagnet in this embodiment uses a nebulium magnet, which has strong magnetism.

[0065] Preferably, in this embodiment, the airbag 17 adopts an explosive impact airbag to ensure the compressive strength of the airbag 17.

[0066] During operation, the buffer is installed in a suitable position so that the direction of the pressure is parallel to the gas rod 13. Since the two sets of buffer components are only connected in the middle, one end of the whole is under pressure and the other end is limited. Therefore, when under pressure, the two sets of buffer components will also deform synchronously, specifically as follows: when under pressure, the pressure first acts on the energy absorption tube 12 and the gas rod 13, and the energy absorption tube 12 and the gas rod 13 shrink and deform until the pressure in the gas rod 13 increases enough to resist the impact pressure, and the gas rod 13 shrinks to the limit position, which is the first buffer; after the gas rod 13 shrinks to the limit position, it will squeeze the air bag 17 under the action of the impact pressure, and the squeezing force becomes greater and greater until the air bag 17 explodes, which is the second buffer; after the air bag 17 explodes, the gas rod 13 and the mounting seat 11 continue to move, and the permanent magnets 14 installed on the two gas rods 13 approach each other. Before the two mounting seats 11 contact, a repulsive force is generated between the permanent magnets 14, and the closer the distance, the greater the repulsive force, which is the third buffer. Through the above three buffers, the buffering capacity of the buffer is greatly improved.

[0067] Reference Figure 1 and Figure 2 As a further improvement to the above solution, a baffle 15 is fixed to the end of the gas rod 13 away from the air bag 17. A compression spring 16 is installed between the baffle 15 and the permanent magnet 14. The permanent magnet 14 and the baffle 15 are fixed to different sections of the gas rod 13. When the gas rod 13 contracts due to impact pressure, the compression spring 16 provides a certain counteracting force to the gas rod 13, further providing a buffering effect. Furthermore, a pressure alarm is fixed to the baffle 15, which is adapted to emit a sound when under pressure to alert workers.

[0068] Reference Figure 2 As a further improvement to the above solution, engaging teeth are provided on the opposing surfaces of the two mounting seats 11. When the buffer fails and the two mounting seats 11 engage, the engaging teeth connect the two sets of buffer components together to form a whole, thus preventing the buffer structure from falling apart.

[0069] Example 2

[0070] Reference Figure 3 and Figure 4 This embodiment provides a vehicle body anti-collision device, comprising:

[0071] The housing 2 is suitable for installation in front of the vehicle body and is made of plastic metal material;

[0072] The honeycomb energy absorbing chamber 3 is fixed in the shell 2 and is made of plastic metal material. The honeycomb energy absorbing chamber 3 includes multiple honeycombs, the length direction of the honeycombs is consistent with the forward direction of the vehicle body, each honeycomb is equipped with the aforementioned buffer, and the gas rods 13 are arranged front and back.

[0073] Reference Figure 7 Preferably, in this embodiment, the housing 2 is a box-shaped structure, comprising a rear panel; a top panel 23 fixedly connected to or integrally formed with the rear panel; a bottom panel fixedly connected to or integrally formed with the rear panel; two side panels 22 detachably fixed to the rear panel; and a front panel 21 detachably fixed to the side panels 22. This structure facilitates assembly and is simple to manufacture. In other embodiments, the housing 2 may also be formed into a common cylindrical or prismatic shape.

[0074] During a collision, the shell 2 is first compressed and deformed. When the shell 2 is deformed to a certain extent, the impact pressure is transmitted to the honeycomb energy absorbing chamber 3, and the honeycomb energy absorbing chamber 3 begins to shrink and deform. When the honeycomb energy absorbing chamber 3 shrinks and deforms to a certain extent, the impact pressure is transmitted to the buffer for buffering.

[0075] Reference Figure 3 As a further improvement of the above technical solution, it also includes:

[0076] The support plate 4 is placed in the shell 2 and is made of a rigid metal material. The honeycomb energy absorption chamber 3 is located between the front end surface of the shell 2 and the support plate 4;

[0077] The buffer structure is located between the support plate 4 and the rear end surface of the shell 2, and the compressive strength of the buffer structure is greater than that of the buffer.

[0078] Reference Figure 5 Preferably, the buffer structure includes a Y-type shock absorber 6 and / or a shock absorbing spring 7, and the Y-type shock absorber 6 includes:

[0079] Base 61, fixed on the rear end surface of the housing 2;

[0080] Two resonant plates 62, whose lower ends are hinged to the front end of the base 61, and whose upper ends are slidably mounted on the support plate 4;

[0081] The buffer spring 63 is connected between the two resonant plates 62 , and its expansion and contraction direction is consistent with the sliding direction of the resonant plate 62 relative to the support plate 4 .

[0082] When the buffer fails, the impact pressure is transmitted to the support plate 4. Since the support plate 4 is made of rigid metal material, the impact pressure will continue to be transmitted to the buffer structure for buffering, further improving the buffering performance of the vehicle body anti-collision device.

[0083] Reference Figure 6As a further improvement of the above technical solution, a first clamping block 81 is fixed or integrally formed on the rear part of the inner wall of the two side panels 22, and a second clamping block 82 is fixed or integrally formed on the inner wall of the rear panel. The first clamping block 81 and the second clamping block 82 are arranged opposite to each other and both opposite surfaces are provided with grooves. The two grooves are arranged opposite to each other to form an accommodating cavity. A block 83 is built into the accommodating cavity. The block 83 is placed in the two grooves at the same time and a spring is pressed between the block 83 and the second clamping block 82. The spring is arranged in the left and right directions.

[0084] During assembly, place the block 83 in the groove of the second block 82 and press the spring in place, then move the two side panels 22 closer to each other from the left and right directions, so that the grooves of the first block 81 and the second block 82 are docked to form a accommodating cavity, and finally, fix the two side panels 22 together through the front plate 21 to complete the assembly, which is more convenient and quick.

[0085] Reference Figure 6 As a further improvement of the above technical solution, the support plate 4 is an arc-shaped plate, the middle part of the arc-shaped plate is convex and the left and right edges are pressed in front of the first clamping block 81, and a limiting block 85 is fixed or integrally formed on the inner wall of the side plate 22. The limiting block 85 is connected to the front side of the arc-shaped plate and the connecting surface is adapted to the surface of the arc-shaped plate. The first clamping block 81 and the stopper 83 are made of plastic metal material, and the second clamping block 82 is made of rigid metal material. A cutter 84 suitable for cutting the stopper 83 is fixed on the front wall of the groove of the first clamping block 81, and the cutter 84 is arranged corresponding to the connecting part of the two grooves.

[0086] During a slight collision, although the shell 2 is deformed, due to the effect of the buffer structure on the arc plate, and the fact that the arc plate itself is not easy to deform, the deformation of the shell 2 is blocked by the connection between the limit block 85 and the arc plate, and the first block 81 will not be deformed; when there is a serious collision, the buffer fails and the buffer structure takes effect. At this time, the arc plate moves backward, driving the first block 81 to compress and deform, driving the cutter 84 to move backward, and cutting the block 83 along the position where the two grooves meet. At this time, the first block 81 is separated from the second block 82, and the two side panels 22, the front panel 21 and the honeycomb energy absorption chamber 3 are all separated from the vehicle body. Under the action of inertia or external force, this part will fall off as a whole, taking away part of the impact force, thereby avoiding subsequent damage to the vehicle body.

[0087] Reference Figure 6 Preferably, the first clamping block 81 is provided with a hollow portion, which is more conducive to the deformation of the first clamping block 81, thereby ensuring that the running distance of the cutter 84 is sufficient.

[0088] Reference Figure 3 As a further improvement of the above technical solution, a silicone pad 5 is provided between the honeycomb energy absorption bin 3 and the shell 2 and the support plate 4 to further improve the buffering capacity.

[0089] Based on the above specific structure, the vehicle body anti-collision device of this embodiment works as follows:

[0090] During a collision, the shell 2 first shrinks and deforms due to the impact pressure, followed by the honeycomb energy absorbing chamber 3 shrinking and deforming, and then the buffer provides buffering. When the impact force is more severe, the buffer structure takes effect, and at the same time the cutter 84 cuts off the block 83, so that the side panels 22, the front panel 21 and the honeycomb energy absorbing chamber 3 are relatively independent of the vehicle body. They will fall off under the action of external force and take away part of the impact force, thereby achieving the final buffering.

[0091] Example 3

[0092] Reference Figure 8 This embodiment provides a mining explosion-proof battery carrier, including a vehicle body and the aforementioned vehicle body anti-collision device, wherein the vehicle body anti-collision device is installed on the front side of the vehicle body.

[0093] Preferably, the top of the housing 2 is fixed to the bottom plate at the front of the vehicle body.

[0094] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A vehicle body anti-collision device, characterized in that: include: The housing (2) is suitable for being installed in front of a vehicle body and is made of a plastic metal material. The housing (2) is a box structure. The housing (2) comprises a rear plate, a top plate (23), a bottom plate, two side plates (22) and a front plate (21). The top plate (23) is fixedly connected to the rear plate or formed as a whole. The bottom plate is fixedly connected to the rear plate or formed as a whole. The two side plates (22) are detachably fixed to the rear plate. The front plate (21) is detachably fixed to the side plates (22). The two side plates (2 2) A first clamping block (81) is fixed or integrally formed on the rear portion of the inner wall of the rear plate, a second clamping block (82) is fixed or integrally formed on the inner wall of the rear plate, the first clamping block (81) and the second clamping block (82) are arranged opposite to each other and both opposite surfaces are provided with grooves, the two grooves are arranged opposite to each other to form an accommodating cavity, a block (83) is built into the accommodating cavity, the block (83) is placed in the two grooves at the same time and a spring is pressed between the block (83) and the second clamping block (82), and the spring is arranged in the left and right directions; A honeycomb energy absorption chamber (3) is fixed in the shell (2) and is made of a plastic metal material. The honeycomb energy absorption chamber (3) includes a plurality of honeycombs, the length direction of the honeycombs is consistent with the forward direction of the vehicle body, and a buffer is placed in each honeycomb. The buffer includes two sets of buffer components arranged symmetrically and an air bag (17) located between the two sets of buffer components. The buffer component includes a mounting seat (11), an energy absorption cylinder (12), an air rod (13) and a permanent magnet (14). The mounting seat (11) is made of a rigid metal material, and a first end face of the mounting seat (11) is provided with a groove adapted to the air bag (17). The energy absorption cylinder (12) is made of a plastic metal material, and the energy absorption cylinder (12) is fixed on the second end face of the mounting seat (11). The air rod (13) can slide and penetrate The gas rod (13) is coaxially arranged on the mounting seat (11) and arranged front to back. One end of the gas rod (13) abuts against the air bag (17), and the other end of the gas rod (13) is flush with the outer end surface of the energy absorbing tube (12). The permanent magnet (14) is fixed on the gas rod (13). The first end surfaces of the two mounting seats (11) are arranged relative to each other and are connected in a relatively sliding manner. The sliding direction of the mounting seat (11) is parallel to the axial direction of the energy absorbing tube (12). The two grooves limit the air bag (17). The compressive strength of the air bag (17) is greater than that of the gas rod (13). The magnetic poles of the two permanent magnets (14) are opposite. When the air bag (17) ruptures and before the two mounting seats (11) contact, the two permanent magnets (14) generate a repulsive force.

2. The vehicle body anti-collision device according to claim 1, characterized in that: Also includes: A support plate (4) is placed in the shell (2) and is made of a rigid metal material, and the honeycomb energy absorption chamber (3) is located between the front end surface of the shell (2) and the support plate (4); The buffer structure is located between the support plate (4) and the rear end surface of the shell (2), and the compressive strength of the buffer structure is greater than that of the buffer.

3. The vehicle body anti-collision device according to claim 2, characterized in that: The buffer structure includes a Y-shaped shock absorber (6) and / or a shock absorbing spring (7), and the Y-shaped shock absorber (6) includes: a base (61) fixed on the rear end surface of the housing (2); Two resonant plates (62), the lower ends of which are hinged to the front end of the base (61), and the upper ends of which are slidably mounted on the support plate (4); The buffer spring (63) is connected between the two resonant plates (62), and its expansion and contraction direction is consistent with the sliding direction of the resonant plate (62) relative to the support plate (4).

4. The vehicle body anti-collision device according to claim 2, characterized in that: The support plate (4) is an arc-shaped plate, the middle part of the arc-shaped plate is convex and the left and right edges are pressed in front of the first clamping block (81), a limiting block (85) is fixed or integrally formed on the inner wall of the side plate (22), the limiting block (85) is connected to the front side of the arc-shaped plate and the connecting surface is adapted to the surface of the arc-shaped plate, the first clamping block (81) and the stopper (83) are made of plastic metal material, the second clamping block (82) is made of rigid metal material, a cutter (84) suitable for cutting the stopper (83) is fixed on the front wall of the groove of the first clamping block (81), and the cutter (84) is arranged corresponding to the connecting part of the two grooves.

5. The vehicle body anti-collision device according to claim 1, characterized in that: A baffle (15) is fixed to the end of the gas rod (13) away from the air bag (17), a compression spring (16) is provided between the baffle (15) and the permanent magnet (14), and the permanent magnet (14) and the baffle (15) are fixed to different sections of the gas rod (13).

6. The vehicle body anti-collision device according to claim 1, characterized in that: The opposing surfaces of the two mounting seats (11) are provided with engaging teeth.

7. A mining explosion-proof battery carrier, characterized in that: The vehicle comprises a vehicle body, and a vehicle body anti-collision device according to any one of claims 1 to 6, wherein the vehicle body anti-collision device is installed on the front side of the vehicle body.

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