A device for impact testing of a car seat

Abstract

The application discloses a kind of automobile seat impact test device, belong to automobile seat testing device technical field.A kind of automobile seat impact test device, including workbench, the outer surface of workbench is fixed with motor in one end, the inner surface of workbench is provided with movable mechanism in one end, movable mechanism includes rotary disc, the output end of motor passes through workbench and is fixed with the surface at the middle position of movable mechanism, the top of the inner surface of workbench is provided with three shaft grooves, and the inside of shaft groove is fixed with embedded shaft.The application is convenient for user to adjust the position of automobile seat in the interval when impact head and automobile seat are separated, thereby improving the use convenience of the device, so that the time spent in test process can be shortened without stopping motor and canceling the fixation of automobile seat.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile seat testing device, and particularly relates to an automobile seat impact test device. BACKGROUND

[0002] The automobile seat is one of important components of the automobile interior, and is used as a tool for passengers to sit when they are in the car. With the improvement of people's safety awareness, the safety performance requirement of the seat is higher and higher, thereby leading to the higher and higher requirement of the impact resistance of the automobile seat. At present, the impact test of the automobile seat needs to use the corresponding impact test device to assist the user to detect the automobile seat.

[0003] The automobile seat impact test device in the prior art impacts the automobile seat in a fixed state by setting the impact head capable of reciprocating motion. In order to ensure the accuracy of the test, the contact position of the automobile seat and the impact head needs to be adjusted. However, in the process of the test, the adjustment of the automobile seat needs to cancel the fixation of the automobile seat first, and then the position of the automobile seat can be adjusted. Therefore, it is inconvenient to adjust the position of the automobile seat in the interval when the impact head and the automobile seat are separated, thereby leading to the longer time needed to complete the test work of the automobile seat, and thereby reducing the efficiency of the device during the test, which is not conducive to use.

[0004] Therefore, there is a need for an automobile seat impact test device to solve the problem of the prior art that the adjustment of the automobile seat in the process of the test needs to cancel the fixation of the automobile seat first, and then the position of the automobile seat can be adjusted, thereby reducing the efficiency of the device during the test. SUMMARY

[0005] The present application aims to provide an automobile seat impact test device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The utility model provides an automobile seat impact test device, including the workbench, one end of the workbench outer surface is fixed with motor, the inner surface of workbench one end is provided with movable mechanism, movable mechanism includes the rotary disc, the output of motor passes through workbench and is fixed with the surface of movable mechanism middle position, the top of workbench inner surface is provided with three shaft grooves, the inside fixed embedding shaft of shaft groove, the first spring of embedding shaft outer circumferential surface top is set, one side of rotary disc is provided with motion plate, the bottom of embedding shaft outer circumferential surface is slidably set with connecting sleeve, one end of connecting sleeve passes through adjacent position shaft groove and is fixed with the surface of motion plate, the top of motion plate is fixed with fixed seat, one end of first spring is fixed with the inner wall of adjacent position shaft groove, the other end of shaft groove is fixed with the surface of adjacent position connecting sleeve, the surface of motion plate middle position is inserted and is provided with the opening of opening, the inside of opening is inserted with the plug rod, one end of plug rod is fixed with the surface of rotary disc, the surface of fixed seat bottom is uniformly fixed with three spring telescopic rods, the surface of spring telescopic rod bottom is fixed with impact head.

[0008] It is worth mentioning in the scheme that the bottom of the inner surface of the workbench is provided with a connecting groove on both sides, which is symmetrically distributed. The middle position of the two connecting grooves is provided with a connecting mechanism. One of the connecting grooves is rotatably connected with a threaded rod inside. One side of the threaded rod extends out of the workbench through the inner wall of the other connecting groove and the connecting mechanism. The threaded rod is threadedly connected with a second threaded sleeve at the position of the inner cavity of the two connecting grooves. The surface of the top of the second threaded sleeve is fixed with a clamping plate.

[0009] It is further worth mentioning that the outer surface of the rotary disc is fixed with a support block near the inner surface of the workbench. A rotating rod is rotatably connected through the middle position of the support block. A third bevel gear is fixedly sleeved on one end of the outer circumferential surface of the rotating rod. A fourth bevel gear is fixedly sleeved on the outer circumferential surface of the output end of the motor near the third bevel gear. The third bevel gear and the fourth bevel gear are meshingly connected.

[0010] It is further worth mentioning that the other side of the outer circumferential surface of the rotating rod and the part of the threaded rod extending out of the workbench are fixedly sleeved with a belt pulley. The middle positions of the two belt pulleys are provided with a connecting belt.

[0011] As a preferred, the connecting mechanism includes a rod groove, a rotating cylinder is rotatably connected to one end of the inner cavity of the rod groove, a first bevel gear is fixedly sleeved on the outer circumferential surface of the rotating cylinder, a second bevel gear is fixedly sleeved on the outer circumferential surface of the rod groove inside the rod groove, and the first bevel gear and the second bevel gear are meshingly connected.

[0012] Preferably, a threaded cylinder is rotatably connected to the other end of the inner cavity of the rod groove, a first threaded sleeve is threadedly connected to the outer circumferential surface of the threaded cylinder, a push plate is fixed to the top of the first threaded sleeve, and a metal insert is movably inserted through the middle position of the threaded cylinder, with one side of the metal insert extending to the inner cavity of the rotating cylinder.

[0013] Preferably, a magnetic block is fixed to the inner cavity surface of the rotating cylinder, and the surface of one end of the metal insert is in contact with the surface of the magnetic block. One end of the metal insert passes through the worktable and extends out of the worktable. A second spring is sleeved on the outer circumferential surface of the metal insert at the position where it extends out of the worktable, and one end of the second spring is fixed to the surface of one end of the metal insert.

[0014] Preferably, the inner cavities of the three shaft grooves are arranged in a T-shape, and the three connecting sleeves are arranged in a T-shape, with the surfaces of the inner cavities of the adjacent shaft grooves fitting against the inner cavity surfaces of the shaft grooves.

[0015] Compared with the prior art, the automotive seat impact testing device provided by the present invention has the following beneficial effects:

[0016] (1) The present invention is provided with a movable mechanism, a rotating rod and a pulley. By controlling the rotation direction of the motor output end, the movable mechanism drives the spring telescopic rod to reciprocate in the vertical direction, thereby enabling the impact head to repeatedly impact the car seat in the clamped state. The threaded rod can rotate cyclically in two directions, so that the impact head is not in the clamped fixed state when it is separated from the car seat. This makes it convenient for the user to adjust the position of the car seat during the interval between the impact head and the car seat separation, thereby improving the ease of use of the device. As a result, it is not necessary to stop the motor and then remove the car seat fixation, thereby shortening the time spent in the test process.

[0017] (2) The present invention connects the metal insert and the push plate, so that the metal insert and the magnetic block are connected by magnetic attraction when they are in contact. This allows the rotating cylinder to rotate and drive the threaded cylinder to rotate, so that the push plate can be displaced under the action of the first threaded sleeve. This allows the push plate to push the car seat to move, so that the user does not need to manually move the car seat, thus avoiding the impact of the user manually impacting the head, thereby improving the safety of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front.

[0019] Figure 2 In this invention Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention from a top view.

[0021] Figure 4 In this invention Figure 3 Enlarged structural diagram at point B;

[0022] Figure 5 In this invention Figure 3 Enlarged structural diagram at point C;

[0023] Figure 6 This is a side view of a three-dimensional cross-sectional view of a partial structure of the present invention.

[0024] Explanation of reference numerals in the accompanying drawings:

[0025] 1. Workbench; 2. Motor; 3. Movable mechanism; 31. Rotary disk; 32. Shaft groove; 33. Embedded shaft; 34. First spring; 35. Moving plate; 36. Connecting sleeve; 37. Fixed seat; 38. Insert rod; 39. Opening; 4. Spring telescopic rod; 5. Connecting mechanism; 51. Rod groove; 52. Rotating cylinder; 53. First bevel gear; 54. Second bevel gear; 55. Threaded cylinder; 56. First threaded sleeve; 57. Metal insert; 58. Magnetic block; 59. Second spring; 6. Support block; 7. Rotating rod; 8. Third bevel gear; 9. Fourth bevel gear; 10. Pulley; 11. Connecting belt; 12. Connecting groove; 13. Threaded rod; 14. Second threaded sleeve; 15. Clamping plate; 16. Push plate; 17. Impact head. Detailed Implementation

[0026] The present invention will be further described below with reference to embodiments.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0029] Please see Figures 1-6This invention provides an impact testing device for automobile seats, including a workbench 1. A motor 2 is fixed to one end of the outer surface of the workbench 1, and a movable mechanism 3 is provided at one end of the inner surface of the workbench 1. The movable mechanism 3 includes a rotating disk 31. The output end of the motor 2 passes through the workbench 1 and is fixed to the surface at the middle position of the movable mechanism 3. Three shaft grooves 32 are formed on the top of the inner surface of the workbench 1. An embedded shaft 33 is fixed inside the shaft grooves 32. A first spring 34 is sleeved on the top of the outer circumference of the embedded shaft 33. A moving plate 35 is provided on one side of the rotating disk 31. A connecting sleeve 36 is slidably sleeved on the bottom of the outer circumference of the embedded shaft 33. One end of the connecting sleeve 36 passes through an adjacent shaft groove 32 and is fixed to the surface of the moving plate 35. A fixed seat 37 is fixed on the top of the moving plate 35. One end of a spring 34 is fixed to the inner wall of the adjacent shaft groove 32, and the other end of the shaft groove 32 is fixed to the surface of the adjacent connecting sleeve 36. An opening 39 is inserted through the surface of the middle position of the moving plate 35, and a rod 38 is inserted inside the opening 39. One end of the rod 38 is fixed to the surface of the rotating disk 31. Three spring telescopic rods 4 are evenly fixed on the bottom surface of the fixed base 37. An impact head 17 is fixed on the bottom surface of the spring telescopic rods 4. When the motor 2 is started, the rotating disk 31 is in motion, and the rotation direction of the output end of the motor 2 is controlled, so that the spring telescopic rods 4 and the impact head 17 can reciprocate in the vertical direction, so that the impact head 17 can repeatedly impact the car seat located between the two clamps 15.

[0030] Further as Figure 3 As shown, it is worth noting that symmetrically distributed connecting grooves 12 are provided on both sides of the bottom of the inner surface of the workbench 1. A connecting mechanism 5 is provided at the middle position of the two connecting grooves 12. A threaded rod 13 is rotatably connected inside one of the connecting grooves 12. One side of the threaded rod 13 passes through the connecting mechanism 5 and the inner wall of the other connecting groove 12 and extends out of the workbench 1. A second threaded sleeve 14 is threadedly connected to the outer circumferential surface of the threaded rod 13 at the position of the inner cavity of the two connecting grooves 12. A clamping plate 15 is fixed on the top surface of the second threaded sleeve 14. When the threaded rod 13 is in the rotating state, since the two sides of the outer circumferential surface of the threaded rod 13 are arranged in opposite directions, and the inner cavity of the connecting groove 12 can play a role in resisting and limiting the two second threaded sleeves 14, the two second threaded sleeves 14 can drive the clamping plate 15 to move towards each other and away from each other under the cooperation between the internal thread structure of its inner wall and the external thread structure of the outer circumferential surface of the threaded rod 13.

[0031] Further as Figure 1 , Figure 3 and Figure 4As shown, it is worth noting that a support block 6 is fixed on the inner surface of the workbench 1 near the outer periphery of the rotating disk 31. A rotating rod 7 is rotatably connected through the middle of the support block 6. A third bevel gear 8 is fixedly sleeved on one end of the outer periphery of the rotating rod 7. A fourth bevel gear 9 is fixedly sleeved on the output end of the motor 2 near the outer periphery of the third bevel gear 8. The third bevel gear 8 and the fourth bevel gear 9 are meshed together. A pulley 10 is fixedly sleeved on the other side of the outer periphery of the rotating rod 7 and at the position where the threaded rod 13 extends out of the workbench 1. A connecting belt 11 is provided in the middle of the two pulleys 10. When the output end of the motor 2 rotates, it can drive the fourth bevel gear 9 to rotate. Thus, under the meshing action between the fourth bevel gear 9 and the third bevel gear 8, the rotating rod 7 is in a rotating state, thereby driving one of the pulleys 10 to rotate. Thus, under the connecting action of the connecting belt 11, the other pulley 10 can drive the threaded rod 13 to rotate.

[0032] Further as Figure 5 As shown, it is worth noting that the connecting mechanism 5 includes a rod groove 51, one end of which is rotatably connected to a rotating cylinder 52. A first bevel gear 53 is fixedly sleeved on the outer circumferential surface of the rotating cylinder 52. A second bevel gear 54 is fixedly sleeved on the outer circumferential surface of the part of the connecting groove 12 located inside the rod groove 51. The first bevel gear 53 and the second bevel gear 54 are meshed together. When the threaded rod 13 is rotating, the second bevel gear 54 can rotate, thereby allowing the rotating cylinder 52 to rotate under the meshing action between the second bevel gear 54 and the first bevel gear 53.

[0033] Further as Figure 5 and Figure 6As shown, it is worth noting that a threaded cylinder 55 is rotatably connected to the other end of the inner cavity of the rod groove 51. A first threaded sleeve 56 is threadedly connected to the outer circumferential surface of the threaded cylinder 55. A push plate 16 is fixed to the top of the first threaded sleeve 56. A metal insert 57 is inserted through the middle position of the threaded cylinder 55. One side of the metal insert 57 extends to the inner cavity of the rotating cylinder 52. A magnetic block 58 is fixed to the inner surface of the rotating cylinder 52. The surface of one end of the metal insert 57 is in contact with the surface of the magnetic block 58. One end of the metal insert 57 passes through the worktable 1 and extends out of the worktable 1. A second spring 59 is sleeved on the outer circumferential surface of the metal insert 57 at the position where it extends out of the worktable 1. One end of the second spring 59 is fixed to the surface of one end of the metal insert 57. When a user abuts against the metal insert 57... The other end of the metal insert 57 extends to the inner cavity of the rotating cylinder 52, so that the metal insert 57 can be connected to the magnetic block 58 under the magnetic attraction between the metal insert 57 and the magnetic block 58. Since one end of the metal insert 57 is set in a cuboid shape with the inner cavity of the threaded cylinder 55, when the rotating cylinder 52 drives the metal insert 57 to rotate, the threaded cylinder 55 can rotate under the contact action between the metal insert 57 and the inner cavity of the threaded cylinder 55. At the same time, the inner wall of the rod groove 51 can play a contact and limiting role on the first threaded sleeve 56, so that the push plate 16 can be displaced in the horizontal direction under the cooperation between the internal thread structure of the first threaded sleeve 56 on its inner wall and the external thread structure on the outer circumference of the threaded cylinder 55, thereby pushing the car seat to move.

[0034] This solution has the following working process: In actual use, the user first places the car seat in the middle position of the two push plates 16. In the initial state, the shaft groove 32 is not deformed, and the insertion rod 38 is located on the same horizontal line at the middle position of the rotating disk 31. By starting the motor 2 and controlling the output end of the motor 2 to drive the movable mechanism 3 to rotate in the counterclockwise direction, the movable mechanism 3 can drive the insertion rod 38 to make a circular motion, so that the insertion rod 38 can move into the inside of the opening 39 and come into contact with the moving plate 35. Thus, the moving plate 35 moves vertically downward under the contact force, so that 26 can slide along the outer peripheral surface of the embedded shaft 33 in the inner cavity of the adjacent shaft groove 32, so that the two ends are connected. The adjacent spring 34 deforms, driving the fourth bevel gear 9 to rotate during the rotation of the motor 2 output end. The meshing action between the fourth bevel gear 9 and the third bevel gear 8 causes the rotating rod 7 to rotate, thereby driving one of the pulleys 10 to rotate. Through the connection of the connecting belt 11, the other pulley 10 drives the threaded rod 13 to rotate. Since the two sides of the outer circumference of the threaded rod 13 are arranged in opposite directions, and the inner cavity of the connecting groove 12 can abut and limit the two second threaded sleeves 14, the two second threaded sleeves 14, under the cooperation of the internal thread structure on their inner wall and the external thread structure on the outer circumference of the threaded rod 13, allow the two second threaded sleeves 14 to rotate. The threaded sleeve 14 can drive the clamping plates 15 to move closer to each other, so that the two clamping plates 15 can clamp and fix the car seat until the impact head 17 moves vertically downward and impacts the car seat to perform an impact test. Since the bottom of the side of the inner cavity of the opening 39 away from the middle of the rotating disk 31 is connected to the outside of the moving plate 35, the insertion rod 38 can disengage from the inside of the opening 39, so that the moving plate 35 can be reset under the action of the return force of the first spring 34. Then, by controlling the output end of the motor 2 to rotate in the opposite direction, the moving mechanism 3 rotates counterclockwise, so that the insertion rod 38 can move back into the inside of the opening 39. During this process, the threaded rod 13 rotates in the opposite direction. This allows the two clamping plates 15 to move away from each other, thus securing the car seat. The process continues until the insert rod 38 contacts the opening 39, causing it to move vertically upwards to its highest position. Then, the output of the motor 2 is controlled to rotate in the initial direction, causing the movable mechanism 3 to move clockwise. This causes the spring telescopic rod 4 and the impact head 17 to move vertically downwards again, and the two push plates 16 to move closer together, thus securing the car seat and performing an impact test. When adjustment of the car seat is needed, during the clockwise rotation of the movable mechanism 3, the user contacts one end of the metal insert 57, causing the other end of the metal insert 57 to extend into the inner cavity of the rotating cylinder 52.Thus, the metal insert 57 can be connected to 62 under the magnetic attraction between the metal insert 57 and the magnetic block 58. Since one end of the metal insert 57 is rectangular in shape with the inner cavity of the threaded cylinder 55, when the rotating cylinder 52 drives the metal insert 57 to rotate, the threaded cylinder 55 can rotate under the contact action between the metal insert 57 and the inner cavity of the threaded cylinder 55. At the same time, the inner wall of the rod groove 51 can act as a contact limiter for the first threaded sleeve 56. Thus, under the cooperation between the internal thread structure of the first threaded sleeve 56 and the external thread structure of the outer circumference of the threaded cylinder 55, the push plate 16 can be displaced in the horizontal direction, thereby pushing the car seat to move. When the movable mechanism 3 rotates counterclockwise, the metal insert 57 is released, and the second spring 59 can be reset under the rebound force.

[0035] As can be seen from the above working process: by setting up the movable mechanism 3, the rotating rod 7, and the pulley 10, and by controlling the rotation direction of the output end of the motor 2, the movable mechanism 3 drives the spring telescopic rod 4 to reciprocate in the vertical direction. This allows the impact head 17 to repeatedly impact the car seat in the clamped state. Furthermore, the threaded rod 13 can rotate cyclically in both directions, ensuring that the impact head 17 is not in a clamped state when it separates from the car seat. This allows the user to adjust the position of the car seat during the interval between the impact head 17 and the car seat separation, thus improving the ease of use of the device. This eliminates the need to stop the device first. The motor 2 eliminates the need to fix the car seat, thereby shortening the time spent on the test. Through the connecting mechanism 5 and the push plate 16, the metal insert 57 is connected to the magnetic block 58 by magnetic attraction when it contacts the metal insert 57. This allows the rotating cylinder 52 to rotate, which in turn drives the threaded cylinder 55 to rotate. As a result, the push plate 16 is displaced under the contact of the first threaded sleeve 56, which in turn pushes the car seat to move. This eliminates the need for the user to manually move the car seat, thus avoiding the impact of the user manually impacting the head 17 and improving the safety of the device.

[0036] Further as Figure 4 As shown, it is worth noting that the inner cavities of the three shaft grooves 32 are arranged in a T-shape, and the three connecting sleeves 36 are arranged in a T-shape. The surfaces of the inner cavities of the adjacent shaft grooves 32 are in contact with the inner cavities of the shaft grooves 32. Through the shape arrangement and contact relationship of the shaft grooves 32 and the connecting sleeves 36, the inner cavity of the push rod shaft grooves 32 can achieve the effect of resisting and limiting the connecting sleeves 36.

[0037] In summary: By incorporating the movable mechanism 3, the rotating rod 7, and the pulley 10, and controlling the rotation direction of the motor 2's output, the movable mechanism 3 drives the spring telescopic rod 4 to reciprocate vertically. This allows the impact head 17 to repeatedly impact the car seat in a clamped state. Furthermore, the threaded rod 13 can rotate cyclically in both directions, ensuring that the impact head 17 is not in a clamped state when separating from the car seat. This allows the user to adjust the car seat's position during the intervals between impact head 17 and seat separation, improving the device's ease of use. This eliminates the need to stop the motor 2 before using the device. By eliminating the need to fix the car seat, the testing time can be shortened. Through the connecting mechanism 5 and the push plate 16, the metal insert 57 is connected to the magnetic block 58 by magnetic attraction when it contacts the metal insert 57. This allows the rotating cylinder 52 to rotate, which in turn drives the threaded cylinder 55 to rotate. As a result, the push plate 16 is displaced by the contact of the first threaded sleeve 56, which in turn pushes the car seat to move. This eliminates the need for the user to manually move the car seat, thus avoiding the impact of the user manually impacting the head 17 and improving the safety of the device.

[0038] The motor 2 can be purchased from the market. The motor 2 is equipped with a power supply. It is a mature technology in this field and has been fully disclosed. Therefore, it will not be described again in the specification.

Claims

1. An impact testing device for automobile seats, comprising a worktable (1), characterized in that, A motor (2) is fixed to one end of the outer surface of the workbench (1), and a movable mechanism (3) is provided at one end of the inner surface of the workbench (1). The movable mechanism (3) includes a rotating disk (31). The output end of the motor (2) passes through the workbench (1) and is fixed to the surface at the middle position of the movable mechanism (3). Three shaft grooves (32) are provided on the top of the inner surface of the workbench (1). An embedded shaft (33) is fixed inside the shaft groove (32). A first spring (34) is sleeved on the top of the outer circumference of the embedded shaft (33). A moving plate (35) is provided on one side of the rotating disk (31). A connecting sleeve (36) is slidably sleeved on the bottom of the outer circumference of the embedded shaft (33). One end of the connecting sleeve (36) The first spring (34) passes through the adjacent shaft groove (32) and is fixed to the surface of the moving plate (35). The top of the moving plate (35) is fixed with a fixed seat (37). One end of the first spring (34) is fixed to the inner wall of the adjacent shaft groove (32). The other end of the shaft groove (32) is fixed to the surface of the adjacent connecting sleeve (36). An opening (39) is inserted through the surface of the middle position of the moving plate (35). A rod (38) is inserted inside the opening (39). One end of the rod (38) is fixed to the surface of the rotating disk (31). Three spring telescopic rods (4) are evenly fixed to the bottom surface of the fixed seat (37). An impact head (17) is fixed to the bottom surface of the spring telescopic rod (4). The bottom of the inner surface of the workbench (1) is provided with symmetrically distributed connecting grooves (12) on both sides. A connecting mechanism (5) is provided at the middle position of the two connecting grooves (12). A threaded rod (13) is rotatably connected inside one of the connecting grooves (12). One side of the threaded rod (13) passes through the connecting mechanism (5) and the inner wall of the other connecting groove (12) and extends out of the workbench (1). A second threaded sleeve (14) is threadedly connected to the outer circumference of the threaded rod (13) at the position of the inner cavity of the two connecting grooves (12). A clamping plate (15) is fixed on the top surface of the second threaded sleeve (14). A support block (6) is fixed on the inner surface of the workbench (1) near the outer circumference of the rotating disk (31). A rotating rod (7) is rotatably connected through the middle position of the support block (6). A third bevel gear (8) is fixedly sleeved on one end of the outer circumference of the rotating rod (7). A fourth bevel gear (9) is fixedly sleeved on the output end of the motor (2) near the outer circumference of the third bevel gear (8). The third bevel gear (8) and the fourth bevel gear (9) are meshed together. A pulley (10) is fixedly fitted on the other side of the outer circumference of the rotating rod (7) and at the position where the threaded rod (13) extends out of the workbench (1). A connecting belt (11) is provided at the middle position of the two pulleys (10). The connecting mechanism (5) includes a rod groove (51), one end of the inner cavity of the rod groove (51) is rotatably connected to a rotating cylinder (52), the outer peripheral surface of the rotating cylinder (52) is fixedly sleeved with a first bevel gear (53), the outer peripheral surface of the connecting groove (12) located inside the rod groove (51) is fixedly sleeved with a second bevel gear (54), and the first bevel gear (53) and the second bevel gear (54) are meshed together.

2. The automotive seat impact testing device according to claim 1, characterized in that: The other end of the inner cavity of the rod groove (51) is rotatably connected to a threaded cylinder (55). The outer circumferential surface of the threaded cylinder (55) is threadedly connected to a first threaded sleeve (56). A push plate (16) is fixed to the top of the first threaded sleeve (56). A metal insert (57) is inserted through the middle position of the threaded cylinder (55). One side of the metal insert (57) extends to the inner cavity of the rotating cylinder (52).

3. The automotive seat impact testing device according to claim 2, characterized in that: A magnetic block (58) is fixed to the inner cavity surface of the rotating cylinder (52). The surface of one end of the metal plug (57) is in contact with the surface of the magnetic block (58). One end of the metal plug (57) passes through the workbench (1) and extends out of the workbench (1). A second spring (59) is sleeved on the outer circumferential surface of the metal plug (57) at the position where it extends out of the workbench (1). One end of the second spring (59) is fixed to the surface of one end of the metal plug (57).

4. The automotive seat impact testing device according to claim 1, characterized in that: The inner cavities of the three shaft grooves (32) are arranged in a T-shape, and the three connecting sleeves (36) are arranged in a T-shape. The surface of the inner cavity of the connecting sleeve (36) located at the adjacent position of the shaft groove (32) is in contact with the inner cavity surface of the shaft groove (32).

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