A crash barrier testing device

Abstract

The utility model relates to a kind of anti-collision fence testing device, including base, the top plate of base is provided with impact box component, impact box component includes impact box, impact box is slidably connected with base along left and right direction;The left end of impact box is fixed with impact block, the right end of impact box is connected with support by first elastic unit, support is fixedly connected with the top plate of base;Impact box is compressed first elastic unit energy storage by pushing right to promote;After releasing impact box, under the action of the restoring force of first elastic unit, impact box is shot left to drive impact block to collide with anti-collision fence.Using the technical scheme, after impact block collides with anti-collision fence, impact block does not rebound under the action of the elastic force of first elastic unit, since first elastic unit is still compressed, avoid invalid impact, shorten test length.

Description

Technical Field

[0001] This utility model belongs to the field of anti-collision railing testing technology, and specifically relates to an anti-collision railing testing device. Background Technology

[0002] Crash barriers are widely used in bridges and elevated roads to prevent vehicles from running off the road or into oncoming lanes, thus reducing the severity of accidents. Current technology for testing the crashworthiness of crash barriers typically involves swinging suspended sandbags against the barrier. This method has several drawbacks: it requires manual manipulation to raise the sandbags before releasing them to impact the barrier. After each impact, the sandbag bounces off, then bounces again, and so on, until it stops bouncing. Each effective impact requires manual raising of the sandbag, which is laborious; the numerous ineffective impacts during the test are time-consuming; and if the sandbags are manually prevented from bouncing off, the heavier sandbags could potentially cause injury. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a test device for anti-collision railings.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A crash barrier testing device includes a base, and an impact box component is provided on the top plate of the base. The impact box component includes an impact box, which is slidably connected to the base in a left-right direction. A striking block is fixedly provided at the left end of the impact box, and the right end of the impact box is connected to a bracket through a first elastic unit. The bracket is fixedly connected to the top plate of the base. Pushing the impact box to the right compresses the first elastic unit to store energy. After the impact box is released, under the action of the restoring force of the first elastic unit, the impact box is ejected to the left, causing the striking block to collide with the crash barrier.

[0005] After the impact block collides with the guardrail, since the first elastic unit is still in a compressed state, the impact block will not bounce back under the action of the elastic force of the first elastic unit, thus avoiding invalid impact and shortening the test time.

[0006] Furthermore, a release block and a power box component are also provided on the top plate of the base. The release block is fixedly connected to the top plate of the base and includes a guide slope A. The power box component is slidably connected to the top plate of the base in the left-right direction, and the power box component and the impact box component are arranged in the front-back direction. The impact box is fixedly provided with a guide cylinder in the middle, the inclined slider is slidably connected to the guide cylinder, a second elastic unit is provided between the inclined slider and the guide cylinder, the inclined slider extends to the outside of the guide cylinder facing the power box component, the extended end of the inclined slider includes a guide inclined surface B, the top of the inclined slider is provided with a guide post, the guide post is used to slide and guide against the guide inclined surface A. The power box component includes a power box, and a force-applying column is fixedly provided on the side of the power box facing the impact box component. When the second elastic unit is in its original state, the force-applying column can abut against the extended end of the inclined plane slider from left to right. When the second elastic unit is in a compressed state, pushing the power box can switch the left and right positions of the force-applying column and the inclined plane slider.

[0007] Furthermore, when the force-applying column is located to the left of the inclined plane slider, the inclined plane slider is pushed to the right by the force-applying column to compress the first elastic unit to store energy. When the guide column abuts against the guide inclined plane A, the inclined plane slider moves forward and gradually moves away from the impact box. At the same time, the second elastic unit is compressed. When the inclined plane slider moves to the point of breaking away from the contact relationship with the force-applying column, under the action of the restoring force of the first elastic unit, the impact box is ejected to the left to collide with the anti-collision railing. At the same time, the second elastic unit returns to its original state and the force-applying column switches to the right of the inclined plane slider. When the force-applying column is located on the right side of the inclined plane slider, under the limiting action of the anti-collision railing, the force-applying column pushes the guide inclined plane B to the left, causing the inclined plane slider to move forward and gradually move away from the impact box. At the same time, the second elastic unit is compressed. When the inclined plane slider moves to the point of breaking away from the contact relationship with the force-applying column, the force-applying column switches to the left side of the inclined plane slider.

[0008] By pushing the power box component to match the inclined slider and release block to compress the first elastic unit to store energy and release the impact box, the impact force on the detected guardrail is made the same each time, effectively avoiding human interference.

[0009] Furthermore, the second elastic unit includes a guide rod, a spring B, and a nut. The rear end of the guide rod is fixedly connected to the front end of the inclined plane slider, and the front end of the guide rod extends outside the guide cylinder. The nut is fixedly connected to the front end of the guide rod. The spring B is sleeved on the guide rod, and the rear end of the spring B abuts against the inclined plane slider. The front end of the spring B abuts against the inner rear end of the guide cylinder.

[0010] Furthermore, a motor is fixedly installed in the power box, which drives the gear to rotate. The gear is rotatably connected to the power box and meshes with the rack. The rack is fixedly connected to the top plate of the base. A sensor plate is also fixedly installed on the power box. A left limit switch and a right limit switch are fixedly installed on the top plate of the base from left to right. Both the left and right limit switches are connected to the control system, and the motor's movement is controlled by the control system. The sensor plate is used to sense the left and right limit switches one by one. When the sensor plate senses the left or right limit switch, the motor stops and rotates in the opposite direction.

[0011] The motor drives the power box to reciprocate, which can effectively impact the guardrail multiple times without manual intervention, saving effort and ensuring a high safety factor.

[0012] Furthermore, the first elastic unit includes a spring A and a guide rod. The right end of the impact box is fixedly connected to the left end of the spring A, the right part of the spring A is sleeved on the guide rod, and both the right end of the spring A and the right end of the guide rod are fixedly connected to the bracket.

[0013] Furthermore, the base is a lifting base, which facilitates adaptation to guardrails of different heights.

[0014] The beneficial effects that this utility model can achieve are as follows: (1) After the impact block collides with the guardrail, since the first elastic unit is still in a compressed state, the impact block will not bounce back under the action of the elastic force of the first elastic unit, thus avoiding invalid impact and shortening the test time.

[0015] (2) Furthermore, by pushing the power box component to match the inclined slider and the release block to compress the first elastic unit to store energy and release the impact box, the impact force on the detected guardrail will be the same each time, effectively avoiding human interference.

[0016] (3) Furthermore, by driving the power box to reciprocate through the motor, the detected anti-collision railing can be impacted multiple times without human intervention, which is labor-saving and has a high safety factor. Attached Figure Description

[0017] Figure 1 This is a perspective view (a) of an embodiment of the present utility model.

[0018] Figure 2 This is a perspective view (II) of an embodiment of the present utility model.

[0019] Figure 3 This is a front view of an embodiment of the present utility model.

[0020] Figure 4 This is a top view of an embodiment of the present utility model.

[0021] Figure 5 This is a side view of an embodiment of the present utility model.

[0022] Figure 6 This is a front view of the power box component in an embodiment of this utility model.

[0023] Figure 7 yes Figure 6 AA sectional view.

[0024] Figure 8 yes Figure 5 A magnified view of section B.

[0025] Figure 9 This is a schematic diagram illustrating the state changes during the use of this utility model embodiment.

[0026] Figure 10 yes Figure 9 A magnified view of section C.

[0027] Figure 11 yes Figure 9 A magnified view of section D.

[0028] In the diagram: 1-Base, 2-Power box, 3-Motor, 4-Bumper block, 5-Impact box, 6-Guide cylinder, 7-Mounting bracket, 8-Release block, 801-Guide ramp A, 9-Spring A, 10-Guide rod, 11-Bracket, 12-Induction plate, 13-Left limit switch, 14-Switch bracket, 15-Right limit switch, 16-Rack, 17-Guide rail A, 18-Guide rail B, 19-Guide column, 20-Slope slider, 2001-Guide ramp B, 21-Guide rod, 22-Spring B, 23-Nut, 24-Slider B, 25-Force application column, 26-Slider A, 27-Gear. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] A crash barrier testing device includes a controller and a base 1. The base 1 is a scissor lift base (since the scissor lift mechanism is existing technology, its structure will not be described in detail here). The top plate of the base 1 is liftable. The top plate of the base 1 is provided with a release block 8, an impact box component, and a power box component.

[0031] The rear of the top plate of base 1 is provided with a rack 16 running in the left-right direction and a pair of guide rails A17 running in the left-right direction, and the front of the top plate of base 1 is provided with a pair of guide rails B18 running in the left-right direction. A left limit switch 13 and a right limit switch 15 are fixedly installed on the top plate of base 1 from left to right. Both the left limit switch 13 and the right limit switch 15 are connected to the control system. The limit switches are fixed on the switch bracket 14, and the switch bracket 14 is fixedly connected to the top plate of base 1.

[0032] Mounting bracket 7 is fixedly connected to the top plate of base 1, and mounting bracket 7 is located between guide rail A17 and guide rail B18. Release block 8 is fixed on mounting bracket 7. Release block 8 includes guide slope A801, which is located on the left side of release block 8.

[0033] The impact box component includes an impact box 5. Several sliders B24 are provided at the bottom of the impact box 5, and the sliders B24 are slidably connected to the guide rail B18. A striking block 4, made of polyurethane, is fixedly installed at the left end of the impact box 5. The right end of the impact box 5 is fixedly connected to the left end of a spring A9. The right side of the spring A9 is sleeved on the guide rod 10, and both the right end of the spring A9 and the right end of the guide rod 10 are fixedly connected to the bracket 11. Figure 7As shown, a guide cylinder 6 is fixedly installed in the middle of the impact box 5. An inclined slider 20 is slidably connected to the guide cylinder 6. The rear end of the inclined slider 20 extends beyond the guide cylinder 6 and faces the outside of the power box component. The front end of the inclined slider 20 is fixedly connected to the rear end of the guide rod 21. The front end of the guide rod 21 extends beyond the guide cylinder 6. A nut 23 is fixedly connected to the front end of the guide rod 21. A spring B22 is sleeved on the guide rod 21. The rear end of the spring B22 abuts against the inclined slider 20, and the front end of the spring B22 abuts against the inner rear end of the guide cylinder 6. The extended end of the inclined slider 20 includes a guide inclined surface B2001. A guide post 19 is provided at the top of the inclined slider 20. The guide post 19 is used for sliding guidance by abutting against the guide inclined surface A801 ​​(e.g., ...). Figure 10 and Figure 11 (As shown).

[0034] The power box component includes a power box 2. The bottom of the power box 2 has several sliders A26, which are slidably connected to the guide rail A17. A motor 3 is fixedly installed in the power box 2. The output shaft of the motor 3 is coaxially and fixedly connected to a gear 27, which meshes with a rack 16. The movement of the motor 3 is controlled by a control system. A sensing plate 12 is also fixedly installed on the power box 2. The sensing plate 12 is used to sense the left limit switch 13 and the right limit switch 15 one by one. When the sensing plate 12 senses the left limit switch 13 or the right limit switch 15, the motor 3 stops and rotates in the opposite direction. A force-applying column 25 is fixedly installed on the side of the power box 2 facing the impact box component. When the spring B22 is in its original state, the force-applying column 25 can abut against the extended end of the inclined slider 20. When the spring B22 is in a compressed state, pushing the power box 2 can switch the left and right positions of the force-applying column 25 and the inclined slider 20.

[0035] The principle of this embodiment: When the force-applying column 25 is located to the left of the inclined plane slider 20, the motor drives the power box 2 to move to the right. The force-applying column 25 pushes the inclined plane slider 20 to the right to allow the compression spring A9 to store energy. When the guide column 19 abuts against the guide inclined plane A801, the inclined plane slider 20 moves forward and gradually moves away from the impact box 5. At the same time, the spring B22 is compressed. When the inclined plane slider 20 moves to the point of breaking away from the contact relationship with the force-applying column 25, under the action of the restoring force of the spring A9, the impact box 5 is ejected to the left, causing the impact block 4 to collide with the anti-collision railing. At the same time, the spring B22 returns to its original state and the force-applying column 25 switches to the right side of the inclined plane slider 20.

[0036] When the force-applying column 25 is located to the right of the inclined plane slider 20, the motor drives the power box 2 to move to the left. Under the limiting action of the anti-collision railing, the force-applying column 25 pushes the guide inclined plane B2001 to the left, causing the inclined plane slider 20 to move forward and gradually move away from the impact box 5. At the same time, the spring B22 is compressed. When the inclined plane slider 20 moves to the point of breaking away from the contact relationship with the force-applying column 25, the force-applying column 25 switches to the left side of the inclined plane slider 20.

[0037] In the description of this utility model, terms such as "upper", "lower", "front", "back", "left", and "right" that indicate orientation or positional relationship are used only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A crash barrier testing apparatus characterised in that: The base (1) is provided with an impact box component on the top plate of the base (1). The impact box component includes an impact box (5). The impact box (5) is slidably connected to the base (1) in the left and right directions. The left end of the impact box (5) is fixedly provided with a collision block (4). The right end of the impact box (5) is connected to the bracket (11) through the first elastic unit. The bracket (11) is fixedly connected to the top plate of the base (1). The impact box (5) is pushed to the right to compress the first elastic unit to store energy. After the impact box (5) is released, under the action of the restoring force of the first elastic unit, the impact box (5) is ejected to the left, causing the collision block (4) to collide with the anti-collision railing.

2. A crash barrier testing apparatus according to claim 1, characterised in that the The top plate of the base (1) is also provided with a release block (8) and a power box component. The release block (8) is fixedly connected to the top plate of the base (1). The release block (8) includes a guide slope A (801). The power box component is slidably connected to the top plate of the base (1) in the left and right direction. The power box component and the impact box component are arranged in the front and back direction. The impact box (5) is fixedly provided with a guide cylinder (6) in the middle. The inclined slider (20) is slidably connected to the guide cylinder (6). A second elastic unit is provided between the inclined slider (20) and the guide cylinder (6). The inclined slider (20) extends to the outside of the guide cylinder (6) facing the power box component. The extended end of the inclined slider (20) includes a guide inclined surface B (2001). The top of the inclined slider (20) is provided with a guide post (19). The guide post (19) is used to slide and guide against the guide inclined surface A (801). The power box component includes a power box (2). A force-applying column (25) is fixedly provided on the side of the power box (2) facing the impact box component. When the second elastic unit is in its original state, the force-applying column (25) can abut against the extended end of the inclined slider (20) from left to right. When the second elastic unit is in its compressed state, pushing the power box (2) can switch the left and right positions of the force-applying column (25) and the inclined slider (20).

3. A crash barrier testing apparatus according to claim 2, characterised in that: When the force-applying column (25) is located to the left of the inclined plane slider (20), the inclined plane slider (20) is pushed to the right by the force-applying column (25) to move so as to compress the first elastic unit to store energy. When the guide column (19) abuts against the guide inclined plane A (801), the inclined plane slider (20) moves forward and gradually moves away from the impact box (5). At the same time, the second elastic unit is compressed. When the inclined plane slider (20) moves to the point of breaking away from the contact relationship with the force-applying column (25), under the action of the restoring force of the first elastic unit, the impact box (5) is ejected to the left and collides with the anti-collision railing. At the same time, the second elastic unit returns to its original state and the force-applying column (25) switches to the right side of the inclined plane slider (20). When the force-applying column (25) is located on the right side of the inclined plane slider (20), under the limiting action of the anti-collision railing, the force-applying column (25) pushes the guide inclined plane B (2001) to the left, causing the inclined plane slider (20) to move forward and gradually move away from the impact box (5). At the same time, the second elastic unit is compressed. When the inclined plane slider (20) moves to the point of breaking away from the contact relationship with the force-applying column (25), the force-applying column (25) switches to the left side of the inclined plane slider (20).

4. A crash barrier testing apparatus as claimed in claim 2, characterised in that: The second elastic unit includes a guide rod (21), a spring B (22), and a nut (23). The rear end of the guide rod (21) is fixedly connected to the front end of the inclined slider (20), and the front end of the guide rod (21) extends out of the guide cylinder (6). The nut (23) is fixedly connected to the front end of the guide rod (21). The spring B (22) is sleeved on the guide rod (21), and the rear end of the spring B (22) abuts against the inclined slider (20). The front end of the spring B (22) abuts against the inner rear end of the guide cylinder (6).

5. A crash barrier testing apparatus as claimed in claim 2, characterised in that: The power box (2) is fixedly equipped with a motor (3), which drives the gear (27) to rotate. The gear (27) is rotatably connected to the power box (2), and the gear (27) meshes with the rack (16). The rack (16) is fixedly connected to the top plate of the base (1). The power box (2) is also fixedly equipped with a sensor (12). The top plate of the base (1) is fixedly equipped with a left limit switch (13) and a right limit switch (15) from left to right. The left limit switch (13) and the right limit switch (15) are both connected to the control system. The action of the motor (3) is controlled by the control system. The sensor (12) is used to sense the left limit switch (13) and the right limit switch (15) one by one. When the sensor (12) senses the left limit switch (13) or the right limit switch (15), the motor (3) stops and rotates in the opposite direction.

6. The crash barrier testing apparatus of claim 1, wherein: The first elastic unit includes a spring A (9) and a guide rod (10). The right end of the impact box (5) is fixedly connected to the left end of the spring A (9). The right part of the spring A (9) is sleeved on the guide rod (10). The right end of the spring A (9) and the right end of the guide rod (10) are both fixedly connected to the bracket (11).

7. The crash barrier testing apparatus of claim 1, wherein: The base (1) is a lifting base.

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