Adjustable road guardrail anti-collision performance simulation detection rack

Abstract

The utility model relates to the technical field of road guardrails, and discloses an adjustable road guardrail anti-collision performance simulation detection rack which comprises a bottom plate, a placing frame is fixedly connected to the middle of the left side of the top end of the bottom plate, a second motor is fixedly connected to the middle of the top end of the bottom plate, and the output end of the second motor is fixedly connected with a first fine gear. Two first insection strips are connected to the outer wall of the first fine gear in a meshed mode, clamping plates are fixedly connected to the sides, away from each other, of the first insection strips, a third motor is fixedly connected to the left end of the front side of the top of the bottom plate, and a second fine gear is fixedly connected to the output end of the third motor. According to the utility model, the baffle plate can be pushed by the motor III to complete the preliminary fixation of the protective fence, and then the clamping plate is driven by the motor II to complete the fixation of the protective fence, so that the detection rack can adapt to protective fences of different specifications, the universality of the detection rack is improved, the occupied area of equipment is reduced, and the space utilization rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of highway guardrail technology, and in particular to an adjustable highway guardrail anti-collision performance simulation testing bench. Background Technology

[0002] The structure of a highway guardrail crashworthiness simulation testing bench includes a collision trolley system, a guardrail installation system, a measurement and data acquisition system, a control system, and a foundation support system. Traditional methods for testing highway guardrail crashworthiness involve real-vehicle crash tests. However, real-vehicle crash tests have many limitations, including high costs, long testing cycles, and difficulties in ensuring safety. With the continuous development of computer technology, sensor technology, and automation control technology, technical support has been provided for the development of adjustable highway guardrail crashworthiness simulation testing benches. These benches can collect and analyze large amounts of test data in real time, thus more scientifically and accurately evaluating the crashworthiness of highway guardrails. However, the fixing devices of existing guardrail testing benches are designed for specific guardrail specifications, requiring different fixing devices for different specifications, which is cumbersome and costly. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an adjustable highway guardrail anti-collision performance simulation testing bench, which aims to improve the existing guardrail testing benches in the prior art. The fixing device is designed for guardrails of specific specifications, and different fixing devices need to be replaced for guardrails of different specifications, which is cumbersome and costly.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable highway guardrail anti-collision performance simulation testing platform, including a base plate, a placement frame fixedly connected to the middle of the top left side of the base plate, a second motor fixedly connected to the middle of the top of the base plate, a fine gear fixedly connected to the output end of the second motor, two toothed strips meshing with the outer wall of the fine gear, clamps fixedly connected to the opposite sides of the toothed strips, a third motor fixedly connected to the left front side of the top of the base plate, a second fine gear fixedly connected to the output end of the third motor, a second toothed strip meshing with the outer wall of the fine gear, a baffle fixedly connected to the left side of the second toothed strip, a guardrail installed inside the placement frame, and an adjustment mechanism provided on the top of the base plate for adjusting the guardrail testing height.

[0005] As a further description of the above technical solution:

[0006] The adjustment mechanism includes a motor, the bottom of which is fixedly connected to the top left side of the base plate near the edge. A small gear is fixedly connected to the output end of the motor, and a large gear is meshed with the outer wall of the small gear. A threaded rod is fixedly connected to the middle of the large gear, and a test platform is threadedly connected to the outer wall of the threaded rod. A support plate is fixedly connected to the top right side of the base plate, and the right side of the test platform is slidably connected to the left side of the support plate.

[0007] As a further description of the above technical solution:

[0008] An anti-slip pad is fixedly connected to the bottom of the base plate, and a support pad is fixedly connected to the middle of the right side of the top of the base plate.

[0009] As a further description of the above technical solution:

[0010] A soundproof cover is fixedly connected to the rear end of the top left side of the base plate, and a heat sink is fixedly connected to the front side of the soundproof cover.

[0011] As a further description of the above technical solution:

[0012] A protective cover is fixedly connected to the top left front end of the base plate, and a cylinder is fixedly connected to the top right rear end of the test bench.

[0013] As a further description of the above technical solution:

[0014] A connecting pipe is connected to the front side of the cylinder, and a push rod is fixedly connected to the front side of the cylinder.

[0015] As a further description of the above technical solution:

[0016] A solenoid valve is fixedly connected to the top of the connecting pipe, and a gas cylinder is connected to the front end of the connecting pipe.

[0017] As a further description of the above technical solution:

[0018] The top of the test bench is fixedly connected to two slide rails, and a test block is slidably connected to the top of the slide rails.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the rotation of the fine gear two driven by the third motor pushes the baffle to complete the initial fixation of the guardrail. Then, the rotation of the fine gear one driven by the second motor drives the clamp to complete the fixation of the guardrail. It can adapt to guardrails of different specifications, eliminating the need to design and manufacture fixing devices separately for each type of guardrail. This improves the versatility of the testing platform, reduces testing costs, and also reduces the floor space occupied by the equipment, thus improving space utilization.

[0021] 2. In this utility model, the rotation of the small gear driven by the motor drives the rotation of the large gear meshing with it, which can amplify the torque. When the torque output by the motor is transmitted to the large gear through the small gear, the large gear will generate a larger torque to drive the rotation of the threaded rod. The rotation of the threaded rod will move the test platform up and down along the left side of the support plate. At the same time, the rotation speed of the threaded rod meets the actual needs of the test platform's lifting and lowering, avoiding the instability of the platform's lifting and lowering due to excessive speed. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the front side of the base plate of the adjustable highway guardrail anti-collision performance simulation test bench proposed in this utility model.

[0023] Figure 2 This is a test bench illustration of the adjustable highway guardrail anti-collision performance simulation test bench proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the support pad for the adjustable highway guardrail anti-collision performance simulation test bench proposed in this utility model.

[0025] Figure 4 This is a display diagram of the placement frame of the adjustable highway guardrail anti-collision performance simulation testing platform proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the cylinder of the adjustable highway guardrail anti-collision performance simulation test bench proposed in this utility model.

[0027] Legend:

[0028] 1. Base plate; 2. Adjustment mechanism; 201. Motor 1; 202. Pinion gear; 203. Large gear; 204. Threaded rod; 205. Test platform; 206. Support plate; 3. Placement frame; 4. Motor 2; 5. Fine gear 1; 6. Toothed strip 1; 7. Clamping plate; 8. Motor 3; 9. Fine gear 2; 10. Toothed strip 2; 11. Baffle; 12. Guardrail; 13. Anti-slip mat; 14. Support pad; 15. Soundproof cover; 16. Heat sink; 17. Protective cover; 18. Cylinder; 19. Connecting pipe; 20. Air tank; 21. Solenoid valve; 22. Push rod; 23. Slide rail; 24. Test block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides an adjustable highway guardrail anti-collision performance simulation testing platform, including a base plate 1, a placement frame 3 fixedly connected to the middle of the left side of the top of the base plate 1, a motor 4 fixedly connected to the middle of the top of the base plate 1, a fine gear 5 fixedly connected to the output end of the motor 4, two toothed strips 6 meshing with the outer wall of the fine gear 5, clamps 7 fixedly connected to the opposite sides of the toothed strips 6, a motor 8 fixedly connected to the left front of the top of the base plate 1, a fine gear 9 fixedly connected to the output end of the motor 8, a toothed strip 10 meshing with the outer wall of the fine gear 9, a baffle 11 fixedly connected to the left side of the toothed strip 10, a guardrail 12 installed inside the placement frame 3, and an adjustment mechanism 2 provided on the top of the base plate 1 for adjusting the guardrail testing height.

[0031] Specifically, the base plate 1 serves as the fundamental support for the entire testing platform, ensuring it can withstand significant impact and load during simulated testing. A placement frame 3 is fixedly connected to the top left center of the base plate 1. This placement frame 3 is specifically designed to hold the highway guardrail sample to be tested, ensuring stability and safety during the testing process. A precision gear 5 is fixedly connected to the output end of motor 2 4. The outer wall of the precision gear 5 meshes with two toothed strips 6, ensuring smooth and precise transmission and reducing transmission errors. At the same time, a clamping plate 7 is fixedly connected to the opposite side of each toothed strip 6 to hold and fix the guardrail sample, preventing displacement during testing. A precision gear 9 is fixedly connected to the output end of motor 3 8. The outer wall of the precision gear 9 meshes with a toothed strip 10, ensuring stability and safety during transmission. The guardrail sample is fixed to the placement frame 3 via a baffle 11, ensuring controllability and safety during the testing process.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The adjustment mechanism 2 includes a motor 201. The bottom of the motor 201 is fixedly connected to the top left side of the base plate 1 near the edge. A small gear 202 is fixedly connected to the output end of the motor 201. A large gear 203 is meshed with the outer wall of the small gear 202. A threaded rod 204 is fixedly connected to the middle of the large gear 203. A test platform 205 is threadedly connected to the outer wall of the threaded rod 204. A support plate 206 is fixedly connected to the top right side of the base plate 1. The right side of the test platform 205 is slidably connected to the left side of the support plate 206.

[0033] Specifically, the bottom of motor 201 is fixed to the top left side of the base plate 1 near the edge, ensuring the stability of motor 201 during operation and facilitating subsequent maintenance and adjustment. A small gear 202 is fixedly connected to the output end of motor 201. The outer wall of the small gear 202 meshes tightly with the outer wall of another large gear 203, forming an efficient power transmission system, ensuring the smoothness and reliability of power transmission. A threaded rod 204 is fixedly connected to the middle of the large gear 203. The outer wall of the threaded rod 204 engages with the internal thread of the test platform 205, enabling the rotation of the threaded rod 204 to adjust the test platform 205 up and down.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A soundproof cover 15 is fixedly connected to the rear end of the top left side of the base plate 1, and a heat sink 16 is fixedly connected to the front side of the soundproof cover 15. Two slide rails 23 are fixedly connected to the top of the test platform 205, and a test block 24 is slidably connected to the top of the slide rails 23. An anti-slip pad 13 is fixedly connected to the bottom of the base plate 1, and a support pad 14 is fixedly connected to the middle right side of the top of the base plate 1.

[0035] Specifically, the soundproof cover 15 can effectively isolate noise during adjustment and ensure the test environment. The front side of the soundproof cover 15 is equipped with heat sink 16, which can dissipate the heat generated during equipment operation in a timely manner and maintain the normal operating temperature of the equipment. The top of the slide rail 23 is slidably connected to the test block 24, which can slide on the slide rail 23 to facilitate test operation. The anti-slip pad 13 is used to increase the friction between the base plate 1 and the ground, prevent the base plate 1 from sliding during the test, and ensure the stability of the entire test device.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 A protective cover 17 is fixedly connected to the top left front end of the base plate 1, and a cylinder 18 is fixedly connected to the top right rear end of the test platform 205. A connecting pipe 19 is connected to the front side of the cylinder 18, and an air tank 20 is connected to the front end of the connecting pipe 19. A solenoid valve 21 is fixedly connected to the top of the connecting pipe 19, and a push rod 22 is fixedly connected to the front side of the cylinder 18.

[0037] Specifically, the protective cover 17 is to provide effective safety protection during operation. The cylinder 18 is fixedly connected to the rear right side of the top of the test bench 205. The front part of the cylinder 18 is connected to the gas tank 20 through the connecting pipe 19 to ensure the flow of gas. The gas flow is controlled by the solenoid valve 21 at the top of the connecting pipe 19 to ensure that the push rod 22 pops out and pushes the test block 24 to achieve the simulated test effect.

[0038] Working principle: After the guardrail 12 is placed inside the placement frame 3 through the top of the test bench 205, the rotation of the fine gear 9 is driven by the motor 3 8. The rotation of the fine gear 9 causes the toothed strip 10 meshing with it to move left and right, thereby pushing the baffle 11 to complete the initial fixation of the guardrail 12. Then, the rotation of the fine gear 5 is driven by the motor 2 4. The rotation of the fine gear 5 causes the toothed strip 6 meshing with it to move in opposite directions, thereby driving the clamping plate 7 to complete the fixation of the guardrail 12. Since it can adapt to guardrails 12 of different specifications, the test bench can be used to test various types of guardrails 12. There is no need to design and manufacture a fixing device separately for each specification of guardrail 12, which improves the versatility of the test bench, reduces the testing cost, and also reduces the footprint of the equipment and improves the space utilization rate.

[0039] The rotation of the pinion 202 driven by the motor 201 causes the rotation of the meshing gear 203, which amplifies the torque. When the torque output by the motor 201 is transmitted to the gear 203 through the pinion 202, the gear 203 generates a larger torque to drive the rotation of the threaded rod 204. The rotation of the threaded rod 204 causes the test platform 205 to move up and down along the left side of the support plate 206. At the same time, the rotation speed of the threaded rod 204 matches the actual lifting and lowering requirements of the test platform 205, avoiding instability caused by excessive speed.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable highway guardrail anti-collision performance simulation test bench, including a base plate (1), characterized in that: A placement frame (3) is fixedly connected to the middle of the left side of the top of the base plate (1). A motor (4) is fixedly connected to the middle of the top of the base plate (1). A fine gear (5) is fixedly connected to the output end of the motor (4). Two toothed strips (6) are meshed on the outer wall of the fine gear (5). A clamp (7) is fixedly connected to the opposite side of the toothed strips (6). A motor (8) is fixedly connected to the left front end of the top of the base plate (1). A fine gear (9) is fixedly connected to the output end of the motor (8). A toothed strip (10) is meshed on the outer wall of the fine gear (9). A baffle (11) is fixedly connected to the left side of the toothed strip (10). A guardrail (12) is installed on the inner side of the placement frame (3). An adjustment mechanism (2) is provided on the top of the base plate (1). The adjustment mechanism (2) is used to adjust the detection height of the guardrail.

2. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 1, characterized in that: The adjustment mechanism (2) includes a motor (201), the bottom of which is fixedly connected to the top left side of the base plate (1) near the edge. A small gear (202) is fixedly connected to the output end of the motor (201). A large gear (203) is meshed with the outer wall of the small gear (202). A threaded rod (204) is fixedly connected to the middle of the large gear (203). A test platform (205) is threadedly connected to the outer wall of the threaded rod (204). A support plate (206) is fixedly connected to the top right side of the base plate (1). The right side of the test platform (205) is slidably connected to the left side of the support plate (206).

3. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to an anti-slip pad (13), and the top right middle part of the base plate (1) is fixedly connected to a support pad (14).

4. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 1, characterized in that: A soundproof cover (15) is fixedly connected to the rear end of the top left side of the base plate (1), and a heat sink (16) is fixedly connected to the front side of the soundproof cover (15).

5. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 2, characterized in that: A protective cover (17) is fixedly connected to the front left side of the top of the base plate (1), and a cylinder (18) is fixedly connected to the rear right side of the top of the test bench (205).

6. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 5, characterized in that: The front side of the cylinder (18) is connected to a connecting pipe (19), and a push rod (22) is fixedly connected to the front side of the cylinder (18).

7. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 6, characterized in that: A solenoid valve (21) is fixedly connected to the top of the connecting pipe (19), and a gas tank (20) is connected to the front end of the connecting pipe (19).

8. The adjustable highway guardrail anti-collision performance simulation testing bench according to claim 2, characterized in that: The top of the test bench (205) is fixedly connected to two slide rails (23), and the top of the slide rails (23) is slidably connected to a test block (24).

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