An impulse measurement device for automobile crash testing

Abstract

This invention discloses an impulse measurement device for automobile collision avoidance testing, applied in the field of automobile collision avoidance testing technology. The invention, through a measurement structure and a contact mechanism, allows the impact force generated when a car contacts a collision contact plate to be transmitted to the contact mechanism. This contact mechanism enables a marking mechanism to move under the impact force. Through the coordinated use of a release component and a moving component, the force of the car collision causes the contact mechanism to move the release component, releasing the limit on the moving component and allowing the moving component to move and mark the force of the car collision, thus facilitating the acquisition of impulse data generated during the impact.

Description

Technical Field

[0001] This invention belongs to the field of automotive crash test technology, and specifically relates to an impulse measurement device for automotive crash test. Background Technology

[0002] Based on the process and methods of automotive crash testing, various testing scenarios will be encountered during the testing process, not limited to the one mentioned below. More specifically, in order to understand the crumple zone of the front bumper, engine compartment, and A-pillar in actual collisions, a 100% frontal rigidity automotive crash test will be conducted. Although the above can test the impact force generated during a collision, the impulse generated by the car during the collision is difficult to observe directly, and the data on the automotive collision cannot be fully understood.

[0003] Based on the above-mentioned problems, it can be found that existing devices on the market are difficult to avoid the problems mentioned above when in use. Moreover, even if they can be solved, they require the connection of external devices, thus failing to achieve the desired effect. Therefore, we propose an impulse measurement device for car crash testing that can directly observe the impulse during car collisions. Summary of the Invention

[0004] The purpose of this invention is to address an existing impulse measurement device for automobile collision testing. Its advantage lies in its measurement structure, which, through a contact mechanism, allows the impact force generated when the car contacts the collision contact plate to be transmitted to the contact mechanism. This contact mechanism then moves a marking mechanism under the impact force. Through the coordinated use of the marking mechanism, a release component, and a moving component, the force of the collision causes the contact to move the release component, releasing its restriction on the moving component and allowing the moving component to move and mark the force of the collision, thus facilitating the acquisition of impulse data generated during the impact.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an impulse measurement device for automobile collision avoidance testing, comprising a collision pier, a measurement structure, a rigid barrier structure, and a collision contact plate, wherein the rigid barrier structure is bolted to the front side of the collision pier, the measurement structure is bolted to the interior of the rigid barrier structure, the collision contact plate is bolted to the front side of the rigid barrier structure, the measurement structure includes a marking mechanism and a contact mechanism, the marking mechanism includes a moving component and a releasing component, the moving component is bolted to the interior of the rigid barrier structure, the releasing component is bolted to the moving component on the side near the moving component, and the contact mechanism is bolted to the interior of the rigid barrier, the contact mechanism and the releasing component being used in conjunction.

[0006] By adopting the above technical solution, a measurement structure is set up. When the car comes into contact with the collision contact plate, the impact force generated by both is transmitted to the contact mechanism through the collision contact plate. This allows the contact mechanism to move the marking mechanism, which in turn moves under the impact force. Through the marking mechanism, and with the cooperation of the release component and the moving component, the force of the car collision will cause the contact to drive the release component to move. This allows the release component to release the limit on the moving component, and enables the moving component to move and mark the force of the car collision, thus facilitating the acquisition of the impulse data generated by the car during the impact.

[0007] The invention is further configured such that: the moving component includes a slide rod, the front and rear sides of which are bolted to the inner wall of the rigid barrier structure; a connecting block is slidably connected to the surface of the slide rod; a moving block is bolted between the opposite sides of the two connecting blocks; a marking block is bolted to the side of the moving block near the inner wall of the rigid barrier structure; the side of the marking block away from the moving block extends to the outer side of the rigid barrier structure; and the front side of the moving block is bolted to the rear side of the release component.

[0008] By adopting the above technical solution, a moving component is set up. After the release component is released from its limit, the moving block moves on the surface of the sliding rod through the connecting block under the elastic force of the release component. At the same time, the moving block will drive the marking block to move on the surface of the rigid barrier structure, so that the marking block can mark the force of the car collision, thereby making it easier to obtain the impulse data generated by the car during the impact.

[0009] The present invention is further configured such that: both sides of the rigid barrier structure are provided with movable holes for use with the marking block; the side of the marking block closest to the rigid barrier structure is in sliding contact with the rigid barrier structure; and both sides of the rigid barrier structure are provided with scales for use with the marking block.

[0010] By adopting the above technical solution and setting a moving hole, the marker block can extend to the outside of the rigid barrier structure and move inside it from the side away from the moving block. By setting the scale, the marker block can mark the moving distance of the moving block, which can help the experimenters to intuitively observe the impulse generated by the car during the collision.

[0011] The invention is further configured such that: the release assembly includes two mounting plates, the side of the mounting plate near the moving block and the inner wall of the rigid barrier structure are respectively bolted to the moving block and in contact with the rigid barrier structure, a telescopic rod is installed between the opposite sides of the two mounting plates, a release spring is sleeved on the surface of the telescopic rod, the side of the release spring near the mounting plate is bolted to the mounting plate by a spring fastener, a limiting rod is inserted into the interior of the front mounting plate, a limiting sleeve is sleeved on the surface of the limiting rod, and the side of the limiting rod near the touch mechanism extends into the interior of the touch mechanism.

[0012] By adopting the above technical solution, and by setting a release component, when the contact mechanism drives the limiting rod to move inside the limiting sleeve, the limiting rod will move out of the interior of the front mounting plate. Since the release spring is in a compressed state when the moving block is in the initial position, the front mounting plate is in close contact with the inner wall of the rigid barrier structure. After the limiting rod separates from the front mounting plate, the moving block will move under the elastic force of the release spring, thus facilitating the effect of pushing the moving block to move.

[0013] The present invention is further configured such that: a support rod is bolted to the bottom of the limiting sleeve, the bottom of the support rod is bolted to the inner wall of the rigid barrier structure, limiting blocks are welded to the top and bottom of the inner wall of the limiting sleeve, the surface of the limiting block slides in contact with the inner wall of the limiting rod, and limiting grooves that cooperate with the limiting blocks are provided at the top and bottom of the limiting rod.

[0014] By adopting the above technical solution, the limiting sleeve and the limiting rod can be supported by setting a support rod, thus restricting them to a fixed position. By setting a limiting block and a limiting groove, the limiting rod can maintain stability when moving within the limiting sleeve.

[0015] The present invention is further configured such that: the touch mechanism includes a housing, the housing is bolted to the inside of a rigid barrier structure, an electromagnet is bolted to the inside of the housing, a circuit switch and a transmission assembly are bolted to the front and rear sides of the inside of the housing respectively, the circuit switch is electrically connected to the electromagnet, the transmission assembly is used in conjunction with the electromagnet, and the side of the transmission assembly near the limiting rod is rotatably connected to the limiting rod.

[0016] Using the above technical solution, by setting up a contact mechanism, when the car comes into contact with the collision contact plate, the impact force generated by the two will be transmitted to the circuit switch through the collision contact plate, so that the circuit switch is energized, allowing current to enter the electromagnet, so that the electromagnet is energized and generates a magnetic field. Under the action of magnetic force, the transmission component can be attracted, thereby causing the transmission component to drive the release component to move, so that the release component can release the moving component to move.

[0017] The invention is further configured such that: the access switch includes a fixed block, the fixed block is bolted inside the housing, a movable rod is slidably connected to the front side inside the fixed block, the front side of the movable rod extends to the front side of the rigid barrier structure and is bolted to a transmission plate, the front side of the transmission plate contacts the rear side of the collision contact plate, a contact spring is sleeved on the surface of the movable rod, the front and rear sides of the contact spring are welded to the inner wall of the fixed block, a contact point is bolted to the rear side of the inner wall of the fixed block, a movable plate is slidably connected inside the fixed block, a connection point is bolted to the rear side of the movable plate, and the connection point cooperates with the contact point.

[0018] By adopting the above technical solution, when the car comes into contact with the collision contact plate, the impact force generated by both will be transmitted to the transfer plate through the collision contact plate. This causes the transfer plate to push the moving rod to move and the contact spring to contract. This allows the moving rod to push the moving plate to move, so that the connection point can make contact with the contact point. This allows the electromagnet circuit to be energized, making it easier for the electromagnet to generate a magnetic field due to the energization.

[0019] The invention is further configured such that: a fixed rod passes through the interior of the movable plate, a return spring is sleeved on the surface of the fixed rod, the side of the return spring near the inner wall of the movable plate and the fixed block is welded to the movable plate and the fixed block respectively, and a movable groove is provided on the rear side of the movable rod to cooperate with the fixed rod.

[0020] By adopting the above technical solution, the movement trajectory of the moving plate can be restricted by setting a fixed rod and a return spring, and the moving plate can be easily reset under the elastic force of the return spring, so that the connection point and the contact point can be separated.

[0021] The present invention is further configured such that: the transmission assembly includes a positioning rod, a sliding block is sleeved on the surface of the positioning rod, a mating block is bolted to the front side of the sliding block, the mating block is used in conjunction with an electromagnet, a sliding groove is formed inside the sliding block to cooperate with the positioning rod, a movable spring is sleeved on the surface of the positioning rod, and the side of the movable spring near the sliding block and the inner wall of the housing is welded to the sliding block and the housing respectively by a spring fixing member.

[0022] By adopting the above technical solution, by setting up a transmission component, the mating block will be attracted under the action of the electromagnet's magnetic field, causing the sliding block to move on the surface of the positioning rod and stretching the moving spring. The movement of the sliding block will drive the release component to move, thereby facilitating the release component to release the moving component to move.

[0023] The present invention is further configured such that: a first rotating shaft is bolted to both sides of the sliding block, a connecting rod is rotatably connected inside the first rotating shaft, and a second rotating shaft is rotatably connected to the other end of the connecting rod, and the side of the second rotating shaft near the limiting rod is bolted to the limiting rod.

[0024] By adopting the above technical solution, by setting a first rotating shaft, a connecting rod and a second rotating shaft, the sliding block and the limiting rod can be rotatably connected, which makes it easier for the sliding block to drive the limiting rod to move.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. By setting up a touch mechanism, when the car comes into contact with the collision contact plate, the impact force generated by both will be transmitted to the touch mechanism through the collision contact plate, so that the touch mechanism can move the marking mechanism, thereby enabling the marking mechanism to move under the action of the impact force;

[0027] 2. By setting a marking mechanism, and through the coordinated use of the release component and the moving component, the force of the car collision will cause the release component to move, which can release the limit of the moving component and enable the moving component to move and mark the force of the car collision, thereby facilitating the acquisition of the impulse data generated by the car during the impact. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the rigid barrier structure of the present invention;

[0030] Figure 3 This is a schematic diagram showing a partial connection between the measuring structure and the rigid barrier structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the marking mechanism structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the moving component structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the release component structure of the present invention;

[0034] Figure 7 This is the invention Figure 6 Enlarged view of point A in the middle;

[0035] Figure 8 This is a cross-sectional view of the touch mechanism of the present invention;

[0036] Figure 9 This is a top view of the transmission assembly of the present invention;

[0037] Figure 10 This is a schematic diagram of the circuit switch structure of the present invention.

[0038] Reference numerals: 1. Collision block; 2. Measuring structure; 21. Marking mechanism; 211. Moving component; 2111. Sliding rod; 2112. Connecting block; 2113. Moving block; 2114. Marking block; 212. Release component; 2121. Mounting plate; 2122. Telescopic rod; 2123. Release spring; 2124. Limiting rod; 2125. Limiting sleeve; 22. Contact mechanism; 221. Housing; 222. Electromagnet; 223. Circuit switch; 2231. Fixing block; 2232. Moving rod; 2233. 1. Transmission plate; 2234. Contact spring; 2235. Contact point; 2236. Moving plate; 2237. Connection point; 224. Transmission assembly; 2241. Positioning rod; 2242. Sliding block; 2243. Mating block; 2244. Sliding groove; 2245. Moving spring; 3. Rigid barrier structure; 4. Collision contact plate; 5. Moving hole; 6. Support rod; 7. Limiting block; 8. Limiting groove; 9. Fixing rod; 10. Return spring; 11. Moving groove; 12. First rotating shaft; 13. Connecting rod; 14. Second rotating shaft. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1:

[0041] refer to Figure 1-7 An impulse measurement device for automobile collision avoidance testing includes a collision pier 1, a measurement structure 2, a rigid barrier structure 3, and a collision contact plate 4. The rigid barrier structure 3 is bolted to the front side of the collision pier 1, the measurement structure 2 is bolted inside the rigid barrier structure 3, and the collision contact plate 4 is bolted to the front side of the rigid barrier structure 3. The measurement structure 2 includes a marking mechanism 21, which includes a moving component 211 and a releasing component 212. The moving component 211 is bolted inside the rigid barrier structure 3, and the releasing component 212 is bolted to the moving component 211 on the side closest to the moving component 211. Through the marking mechanism 21, and with the cooperation of the releasing component 212 and the moving component 211, the force of the automobile collision will cause the releasing component 212 to move, thereby releasing the limiting effect of the releasing component 212 on the moving component 211 and allowing the moving component 211 to move and mark the force of the automobile collision, thus facilitating the acquisition of impulse data generated by the automobile during the impact.

[0042] like Figure 5As shown, the moving component 211 includes a slide rod 2111. The front and rear sides of the slide rod 2111 are bolted to the inner wall of the rigid barrier structure 3. A connecting block 2112 is slidably connected to the surface of the slide rod 2111. A moving block 2113 is bolted between the opposite sides of the two connecting blocks 2112. A marking block 2114 is bolted to the side of the moving block 2113 closest to the inner wall of the rigid barrier structure 3. The side of the marking block 2114 away from the moving block 2113 extends to the outer side of the rigid barrier structure 3. The front side of 113 is bolted to the rear side of the release component 212. By setting the moving component 211, after the release component 212 is released from its limit, and under the elastic force of the release component 212, the moving block 2113 moves on the surface of the slide bar 2111 through the connecting block 2112. During the movement, the marking block 2114 will move on the surface of the rigid barrier structure 3, so that the marking block 2114 can mark the force of the car collision, thus making it easier to obtain the impulse data generated by the car during the impact.

[0043] like Figure 3 As shown, both sides of the rigid barrier structure 3 are provided with movable holes 5 for use with the marker block 2114. The side of the marker block 2114 closest to the rigid barrier structure 3 is in sliding contact with the rigid barrier structure 3. Both sides of the rigid barrier structure 3 are provided with scales for use with the marker block 2114. By providing movable holes 5, it is easy for the side of the marker block 2114 away from the moving block 2113 to extend to the outside of the rigid barrier structure 3 and move inside it. By providing scales, it is easy for the marker block 2114 to mark the moving distance of the moving block 2113, which can help the experimenters to intuitively observe the impulse generated by the car during the collision.

[0044] like Figure 6As shown, the release assembly 212 includes two mounting plates 2121. The sides of the mounting plates 2121 closest to the moving block 2113 and the inner wall of the rigid barrier structure 3 are respectively bolted to the moving block 2113 and in contact with the rigid barrier structure 3. A telescopic rod 2122 is installed between the opposite sides of the two mounting plates 2121. A release spring 2123 is sleeved on the surface of the telescopic rod 2122. The side of the release spring 2123 closest to the mounting plate 2121 is bolted to the mounting plate 2121 by a spring fastener. A limiting rod 2124 is inserted into the interior of the front mounting plate 2121. A limiting sleeve 2125 is sleeved on the surface of the limiting rod 2124. The side of the limiting rod 2124 closest to the contact mechanism 22 extends into the interior of the contact mechanism 22. The release assembly 212 includes two mounting plates 2121. The sides of the mounting plates 2121 near the moving block 2113 and the inner wall of the rigid barrier structure 3 are respectively bolted to the moving block 2113 and in contact with the rigid barrier structure 3. A telescopic rod 2122 is installed between the opposite sides of the two mounting plates 2121. A release spring 2123 is sleeved on the surface of the telescopic rod 2122. The side of the release spring 2123 near the mounting plate 2121 is bolted to the mounting plate 2121 by a spring fastener. A limiting rod 2124 is inserted into the interior of the front mounting plate 2121. A limiting sleeve 2125 is sleeved on the surface of the limiting rod 2124. The side of the limiting rod 2124 near the touch mechanism 22 extends into the interior of the touch mechanism 22.

[0045] like Figure 6 As shown, a support rod 6 is bolted to the bottom of the limiting sleeve 2125. The bottom of the support rod 6 is bolted to the inner wall of the rigid barrier structure 3. Limiting blocks 7 are welded to the top and bottom of the inner wall of the limiting sleeve 2125. The surface of the limiting block 7 slides in contact with the inner wall of the limiting rod 2124. Limiting grooves 8 that cooperate with the limiting blocks 7 are provided at the top and bottom of the limiting rod 2124. By setting the support rod 6, the limiting sleeve 2125 and the limiting rod 2124 can be supported and restricted to a fixed position. By setting the limiting blocks 7 and the limiting grooves 8, the limiting rod 2124 can maintain stability when moving inside the limiting sleeve 2125.

[0046] Brief description of the usage process: When the touch mechanism 22 drives the limiting rod 2124 to move within the limiting sleeve 2125 and causes the limiting groove 8 to move on the surface of the limiting block 7, the limiting rod 2124 will move out of the interior of the front mounting plate 2121. Since the release spring 2123 is in a compressed state when the moving block 2113 is in the initial position, the front mounting plate 2121 is in close contact with the inner wall of the rigid barrier structure 3. After the limiting rod 2124 separates from the front mounting plate 2121, the moving block 2113 will move under the elastic force of the release spring 2123. The moving block 2113 will move on the surface of the slide rod 2111 through the connecting block 2112. At the same time, the marking block 2114 will move within the moving holes 5 on both sides of the rigid barrier structure 3, so that the marking block 2114 can mark the force of the car collision according to the scale of the frame of the rigid barrier structure 3.

[0047] Example 2:

[0048] refer to Figure 8-10 The measuring structure 2 includes a touch mechanism 22, which is bolted inside the rigid barrier. The touch mechanism 22 works in conjunction with the release assembly 212. When the car comes into contact with the collision contact plate 4, the impact force generated by the two is transmitted to the touch mechanism 22 through the collision contact plate 4, so that the touch mechanism 22 can move the marking mechanism 21, thereby enabling the marking mechanism 21 to move under the action of the impact force.

[0049] like Figure 8 As shown, the contact mechanism 22 includes a housing 221, which is bolted inside the rigid barrier structure 3. An electromagnet 222 is bolted inside the housing 221. A circuit switch 223 and a transmission assembly 224 are bolted to the front and rear sides of the housing 221, respectively. The circuit switch 223 is electrically connected to the electromagnet 222, and the transmission assembly 224 works in conjunction with the electromagnet 222. The side of the transmission assembly 224 closest to the limiting rod 2124 is rotatably connected to the limiting rod 2124. By setting the contact mechanism 22, when the car comes into contact with the collision contact plate 4, the impact force generated by the two will be transmitted to the circuit switch 223 through the collision contact plate 4, energizing the circuit switch 223. This allows current to enter the electromagnet 222, energizing the electromagnet 222 and generating a magnetic field. Under the action of the magnetic force, the transmission assembly 224 can be attracted, thereby causing the transmission assembly 224 to drive the release assembly 212 to move, so that the release assembly 212 can release the moving assembly 211 to move.

[0050] like Figure 10As shown, the access switch 223 includes a fixed block 2231, which is bolted inside the housing 221. A movable rod 2232 is slidably connected to the front side of the fixed block 2231. The front side of the movable rod 2232 extends to the front side of the rigid barrier structure 3 and is bolted to a transmission plate 2233. The front side of the transmission plate 2233 contacts the rear side of the collision contact plate 4. A contact spring 2234 is sleeved on the surface of the movable rod 2232. The front and rear sides of the contact spring 2234 are welded to the inner wall of the fixed block 2231. A contact point 2235 is bolted to the rear side of the inner wall of the fixed block 2231. A movable rod 2235 is slidably connected inside the fixed block 2231. Plate 2236, the rear side of the movable plate 2236 is bolted with a connection point 2237, the connection point 2237 is used in conjunction with the contact point 2235. By setting the circuit switch 223, when the car comes into contact with the collision contact plate 4, the impact force generated by the two will be transmitted to the transmission plate 2233 through the collision contact plate 4, causing the transmission plate 2233 to push the movable rod 2232 to move and the contact spring 2234 to contract, so that the movable rod 2232 can push the movable plate 2236 to move, so that the connection point 2237 can contact the contact point 2235, thereby energizing the electromagnet 222 circuit, so that the electromagnet 222 can generate a magnetic field due to the energization.

[0051] like Figure 10 As shown, a fixing rod 9 runs through the interior of the movable plate 2236, and a return spring 10 is sleeved on the surface of the fixing rod 9. The side of the return spring 10 closest to the inner wall of the movable plate 2236 and the fixing block 2231 is welded to the movable plate 2236 and the fixing block 2231, respectively. A moving groove 11 is provided on the rear side of the movable rod 2232 to cooperate with the fixing rod 9. By setting the fixing rod 9 and the return spring 10, the movement trajectory of the movable plate 2236 can be restricted, and under the elastic force of the return spring 10, the movable plate 2236 can be easily reset, so that the connection point 2237 and the contact point 2235 can be separated.

[0052] like Figure 9As shown, the transmission assembly 224 includes a positioning rod 2241, a sliding block 2242 sleeved on the surface of the positioning rod 2241, a mating block 2243 bolted to the front side of the sliding block 2242, the mating block 2243 working with the electromagnet 222, and a sliding groove 2244 for working with the positioning rod 2241 inside the sliding block 2242. A moving spring 2245 is sleeved on the surface of the positioning rod 2241, and the side of the moving spring 2245 near the sliding block 2242 and the inner wall of the housing 221 is welded to the sliding block 2242 and the housing 221 respectively by a spring fixing member. By setting the transmission assembly 224, the mating block 2243 will be attracted by the magnetic field of the electromagnet 222, causing the sliding block 2242 to move on the surface of the positioning rod 2241 and stretch the moving spring 2245. The movement of the sliding block 2242 will drive the release assembly 212 to move, thereby facilitating the release assembly 212 to release the moving assembly 211 to move.

[0053] like Figure 9 As shown, a first rotating shaft 12 is bolted to both sides of the sliding block 2242. A connecting rod 13 is rotatably connected inside the first rotating shaft 12. A second rotating shaft 14 is rotatably connected to the other end of the connecting rod 13. The side of the second rotating shaft 14 closest to the limiting rod 2124 is bolted to the limiting rod 2124. By setting the first rotating shaft 12, the connecting rod 13 and the second rotating shaft 14, the sliding block 2242 and the limiting rod 2124 can be rotatably connected, which facilitates the sliding block 2242 to drive the limiting rod 2124 to move.

[0054] Brief description of the usage process: When the car comes into contact with the collision contact plate 4, the impact force generated by both is transmitted through the collision contact plate 4 to the transmission plate 2233, causing the transmission plate 2233 to push the moving rod 2232 to move and the contact spring 2234 to contract. This allows the moving rod 2232 to push the moving plate 2236 to move, and the moving plate 2236 to move on the surface of the fixed rod 9, so that the connection point 2237 can contact the contact point 2235. This energizes the circuit of the electromagnet 222, causing the electromagnet 222 to generate a magnetic field. Under the action of the magnetic force, the mating block 2243 can be attracted, and the sliding block 2242 moves on the surface of the positioning rod 2241 and stretches the moving spring 2245. The movement of the sliding block 2242 will drive the release component 212 to move, thus facilitating the release component 212 to release the moving component 211 to move.

Claims

1. An impulse measurement device for automobile collision avoidance testing, comprising a collision pier (1), a measurement structure (2), a rigid barrier structure (3), and a collision contact plate (4), characterized in that: The rigid barrier structure (3) is bolted to the front side of the collision pier (1), the measuring structure (2) is bolted to the inside of the rigid barrier structure (3), the collision contact plate (4) is bolted to the front side of the rigid barrier structure (3), the measuring structure (2) includes a marking mechanism (21) and a touch mechanism (22), the marking mechanism (21) includes a moving component (211) and a releasing component (212), the moving component (211) is bolted to the inside of the rigid barrier structure (3), the releasing component (212) is bolted to the moving component (211) on the side close to the moving component (211), the touch mechanism (22) is bolted to the inside of the rigid barrier structure (3), and the touch mechanism (22) is used in conjunction with the release component (212); The moving component (211) includes a slide rod (2111), the front and rear sides of which are bolted to the inner wall of the rigid barrier structure (3). A connecting block (2112) is slidably connected to the surface of the slide rod (2111). A moving block (2113) is bolted between the opposite sides of the two connecting blocks (2112). A marking block (2114) is bolted to the side of the moving block (2113) near the inner wall of the rigid barrier structure (3). The side of the marking block (2114) away from the moving block (2113) extends to the outer side of the rigid barrier structure (3). The front side of the moving block (2113) is bolted to the rear side of the release component (212).

2. The impulse measuring device for automobile collision avoidance testing according to claim 1, characterized in that: The rigid barrier structure (3) has movable holes (5) on both sides that cooperate with the marking block (2114). The marking block (2114) slides in contact with the rigid barrier structure (3) on the side closest to it. The rigid barrier structure (3) has scales on both sides that cooperate with the marking block (2114).

3. The impulse measuring device for automobile collision avoidance testing according to claim 1, characterized in that: The release assembly (212) includes two mounting plates (2121). The mounting plates (2121) are bolted to the moving block (2113) and in contact with the rigid barrier structure (3) on the side near the moving block (2113) and the inner wall of the rigid barrier structure (3), respectively. A telescopic rod (2122) is installed between the opposite sides of the two mounting plates (2121). A release spring (2123) is sleeved on the surface of the telescopic rod (2122). The side of the release spring (2123) near the mounting plate (2121) is bolted to the mounting plate (2121) by a spring fastener. A limiting rod (2124) is inserted into the interior of the front mounting plate (2121). A limiting sleeve (2125) is sleeved on the surface of the limiting rod (2124). The side of the limiting rod (2124) near the touch mechanism (22) extends into the interior of the touch mechanism (22).

4. The impulse measuring device for automobile collision avoidance testing according to claim 3, characterized in that: The bottom of the limiting sleeve (2125) is bolted with a support rod (6), the bottom of the support rod (6) is bolted to the inner wall of the rigid barrier structure (3), and limiting blocks (7) are welded to the top and bottom of the inner wall of the limiting sleeve (2125). The surface of the limiting block (7) slides in contact with the inner wall of the limiting rod (2124), and the top and bottom of the limiting rod (2124) are provided with limiting grooves (8) that cooperate with the limiting blocks (7).

5. The impulse measuring device for automobile collision avoidance testing according to claim 3, characterized in that: The touch mechanism (22) includes a housing (221) which is bolted inside the rigid barrier structure (3). An electromagnet (222) is bolted inside the housing (221). A circuit switch (223) and a transmission assembly (224) are bolted to the front and rear sides of the housing (221), respectively. The circuit switch (223) is electrically connected to the electromagnet (222). The transmission assembly (224) works in conjunction with the electromagnet (222). The side of the transmission assembly (224) near the limiting rod (2124) is rotatably connected to the limiting rod (2124).

6. The impulse measuring device for automobile collision avoidance testing according to claim 5, characterized in that: The access switch (223) includes a fixed block (2231), which is bolted inside the housing (221). A movable rod (2232) is slidably connected to the front side of the fixed block (2231). The front side of the movable rod (2232) extends to the front side of the rigid barrier structure (3) and is bolted to a transfer plate (2233). The front side of the transfer plate (2233) contacts the rear side of the collision contact plate (4). The movable rod (2232) A contact spring (2234) is sleeved on the surface of the fixed block (2231). The front and rear sides of the contact spring (2234) are welded to the inner wall of the fixed block (2231). A contact point (2235) is bolted to the rear side of the inner wall of the fixed block (2231). A movable plate (2236) is slidably connected inside the fixed block (2231). A connection point (2237) is bolted to the rear side of the movable plate (2236). The connection point (2237) is used in conjunction with the contact point (2235).

7. The impulse measuring device for automobile collision avoidance testing according to claim 6, characterized in that: A fixing rod (9) runs through the interior of the movable plate (2236). A return spring (10) is sleeved on the surface of the fixing rod (9). The return spring (10) is welded to the movable plate (2236) and the fixing block (2231) respectively on the side close to the inner wall of the movable plate (2236) and the fixing block (2231). A moving groove (11) is provided on the rear side of the movable rod (2232) to cooperate with the fixing rod (9).

8. The impulse measuring device for automobile collision avoidance testing according to claim 5, characterized in that: The transmission assembly (224) includes a positioning rod (2241), a sliding block (2242) is sleeved on the surface of the positioning rod (2241), a mating block (2243) is bolted to the front side of the sliding block (2242), the mating block (2243) is used in conjunction with an electromagnet (222), the sliding block (2242) has a sliding groove (2244) inside that is used in conjunction with the positioning rod (2241), a moving spring (2245) is sleeved on the surface of the positioning rod (2241), and the moving spring (2245) is welded to the sliding block (2242) and the housing (221) respectively by a spring fixing member on the side of the moving spring (2245) close to the inner wall of the sliding block (2242) and the housing (221).

9. The impulse measuring device for automobile collision avoidance testing according to claim 8, characterized in that: Both sides of the sliding block (2242) are bolted with a first rotating shaft (12), and a connecting rod (13) is rotatably connected inside the first rotating shaft (12). The other end of the connecting rod (13) is rotatably connected with a second rotating shaft (14), and the side of the second rotating shaft (14) near the limiting rod (2124) is bolted to the limiting rod (2124).

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