Strength detection device

Abstract

The utility model provides a strength detection device, relates to detection device technical field, including support, vertical plate, horizontal plate and pressure sensor, the inside of horizontal plate is slidingly connected with the mounting block, the surface of mounting block is fixedly equipped with the hydraulic cylinder. According to the utility model, the motor A is started to drive the threaded rod B to rotate, so that the mounting block moves transversely, thereby realizing the adjustment of the transverse position of the pressure sensor, and when the motor B is started, the threaded rod C rotates, so that the sliding block A drives the transverse plate to move longitudinally, thereby realizing the adjustment of the longitudinal position of the pressure sensor. Therefore, the device for conveniently detecting the strength of different positions of the guardrail is realized, the position of the sensor can be adjusted in multiple directions, more parts can be covered during testing, local errors possibly caused by detection only at a single position are avoided, and the flexibility and the accuracy of strength detection can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a strength testing device. Background Technology

[0002] Traffic barriers are traffic safety facilities installed on the outer side of road shoulders, traffic dividers, and pedestrian curbs. They absorb collision energy through self-deformation or vehicle climbing, thereby changing the vehicle's direction of travel, preventing vehicles from going off the road or entering oncoming lanes, and minimizing injury to occupants. Therefore, during the production of traffic barriers, strength testing is necessary to ensure their proper functioning.

[0003] In the prior art, such as the Chinese patent CN211784835U "A Strength Testing Device", a workbench is included. A deep groove is formed on the upper surface of the workbench. A conveyor belt is fixedly connected to the inner wall of the groove, and several evenly distributed levers are fixedly connected to the outer wall of the conveyor belt. A stepped groove is formed at the top of the inner wall of the groove. Two U-shaped support rods are fixedly connected to the upper surface of the workbench. This invention, by setting levers and stepped grooves, allows the levers to push a batch of guardrails one by one to directly below the push plate within the stepped groove, enabling the same force to be applied to each guardrail in batches. This allows for continuous strength testing of the guardrails. Adjusting the position of the fixed plate on the fixed column allows for adjusting the distance the pressure plate moves and the set force applied to the guardrails. The device is simple to operate, easy to adjust, and can meet the strength testing requirements of guardrails at different levels. It can continuously test the strength of guardrails, improving testing efficiency.

[0004] Although this type of strength testing device can continuously test the strength of the guardrail and improve testing efficiency, it cannot test at multiple locations on the guardrail and can only test at a fixed location. Because it can only test at a single location, it may miss potential problems in other parts of the guardrail, thereby increasing the risk of local errors. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that it is impossible to test at multiple locations on the guardrail, and that testing can only be performed at a single location, and therefore a strength testing device is proposed.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a strength testing device, comprising a bracket, a vertical plate, a horizontal plate, and a pressure sensor. A mounting block is slidably connected inside the horizontal plate, and a hydraulic cylinder is fixedly mounted on the surface of the mounting block. A mounting plate is slidably connected to the surface of the bracket, and a threaded rod A is rotatably connected inside the mounting plate. A clamping plate is fixedly connected to one end of the threaded rod A, and a rotating head is fixedly mounted to one end of the threaded rod A. A threaded rod B is rotatably connected inside the horizontal plate, and a motor A is fixedly mounted inside the horizontal plate. A first limiting rod is fixedly mounted inside the horizontal plate. A sliding block A is fixedly mounted on the side of the horizontal plate. A motor B is fixedly mounted on the side of the vertical plate. A threaded rod C is rotatably connected inside the vertical plate, and a second limiting rod is fixedly mounted inside the vertical plate. A sliding block B is fixedly mounted on the surface of the mounting plate, and a motor C is fixedly mounted on the side of the bracket. A bidirectional lead screw is rotatably connected inside the bracket.

[0007] Preferably, the output end of the motor A is fixedly connected to one end of the threaded rod B, the threaded rod B is threadedly connected to the mounting block, and the limiting rod is slidably connected to the mounting block.

[0008] Preferably, the sliding block A is slidably connected to the upright plate, the output end of the motor B is fixedly connected to one end of the threaded rod C, the threaded rod C is threadedly connected to the sliding block A, and the limiting rod II is slidably connected to the sliding block A.

[0009] Preferably, the sliding block B is slidably connected to the bracket, the output end of the motor C is fixedly connected to one end of the bidirectional lead screw, and the bidirectional lead screw is threadedly connected to the sliding block B.

[0010] Preferably, a circular sleeve is fixedly connected to the output end of the hydraulic cylinder, a connecting rod is fixedly installed on the surface of the pressure sensor, a limit plate is fixedly installed at one end of the connecting rod, and a spring is fixedly connected to the side of the limit plate.

[0011] Preferably, the connecting rod is slidably connected to the round sleeve, and the limiting plate is slidably connected to the round sleeve.

[0012] Preferably, one end of the spring is fixedly connected to the inner side of the circular sleeve.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by starting motor A, it drives threaded rod B to rotate, causing the mounting block to move laterally, thereby adjusting the lateral position of the pressure sensor. When motor B is started, threaded rod C rotates, causing sliding block A to drive the horizontal plate to move longitudinally. This realizes a device that facilitates strength testing at different positions of the guardrail. The sensor position can be adjusted in multiple directions, allowing more parts to be covered during testing. This avoids local errors that may be caused by testing at only a single position, thus significantly improving the flexibility and accuracy of strength testing.

[0015] 2. In this utility model, the combination of the circular sleeve, connecting rod, limiting plate and spring allows the device to buffer the pressure sensor when performing strength testing on the guardrail. This prevents the pressure sensor from being damaged due to excessive force during strength testing, thus enabling the pressure sensor to obtain more stable and reliable measurement results during strength testing. Attached Figure Description

[0016] Figure 1 This invention provides a three-dimensional structural schematic diagram of a strength testing device;

[0017] Figure 2 An exploded view of the mounting block, sliding block A, threaded rod B, threaded rod C, limiting rod one, and limiting rod two of the strength testing device is provided for this utility model.

[0018] Figure 3 This utility model provides a partial structural diagram of a strength testing device, including a mounting plate, threaded rod A, clamping plate, and sliding block B.

[0019] Figure 4 This utility model presents an exploded schematic diagram of a pressure sensor, connecting rod, limiting plate, spring, and bidirectional lead screw for a strength detection device.

[0020] Legend: 1. Bracket; 2. Vertical plate; 3. Horizontal plate; 4. Pressure sensor; 5. Mounting block; 6. Hydraulic cylinder; 7. Mounting plate; 8. Threaded rod A; 9. Clamping plate; 10. Rotary head; 11. Threaded rod B; 12. Motor A; 13. Limiting rod one; 14. Sliding block A; 15. Motor B; 16. Threaded rod C; 17. Limiting rod two; 18. Sliding block B; 19. Motor C; 20. Double-acting lead screw; 21. Circular sleeve; 22. Connecting rod; 23. Limiting plate; 24. Spring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a strength testing device, including a bracket 1, a vertical plate 2, a horizontal plate 3, and a pressure sensor 4. A mounting block 5 is slidably connected inside the horizontal plate 3, and a hydraulic cylinder 6 is fixedly mounted on the surface of the mounting block 5. A mounting plate 7 is slidably connected to the surface of the bracket 1, and a threaded rod A8 is rotatably connected inside the mounting plate 7. A clamping plate 9 is fixedly connected to one end of the threaded rod A8, and a rotating head 10 is fixedly mounted to one end of the threaded rod A8. A threaded rod B11 is rotatably connected inside the horizontal plate 3, and a motor A12 is fixedly mounted inside the horizontal plate 3. A limit rod 13 is fixedly mounted inside the horizontal plate 3. A sliding block A14 is fixedly mounted on the side of the horizontal plate 3. A motor B15 is fixedly mounted on the side of the vertical plate 2, and a threaded rod C16 is rotatably connected inside the vertical plate 2. A hydraulic cylinder 6 is fixedly mounted inside the vertical plate 2. A limit rod 17 is installed. A sliding block B18 is fixedly installed on the surface of the mounting plate 7. A motor C19 is fixedly installed on the side of the bracket 1. A double-acting screw 20 is rotatably connected inside the bracket 1. The output end of the motor A12 is fixedly connected to one end of the threaded rod B11. The threaded rod B11 is threadedly connected to the mounting block 5. The limit rod 13 is slidably connected to the mounting block 5. The sliding block A14 is slidably connected to the upright plate 2. The output end of the motor B15 is fixedly connected to one end of the threaded rod C16. The threaded rod C16 is threadedly connected to the sliding block A14. The limit rod 17 is slidably connected to the sliding block A14. The sliding block B18 is slidably connected to the bracket 1. The output end of the motor C19 is fixedly connected to one end of the double-acting screw 20. The double-acting screw 20 is threadedly connected to the sliding block B18.

[0024] In this embodiment, by starting motor A12, the threaded rod B11 is rotated, causing the mounting block 5 to move laterally, thereby adjusting the lateral position of the pressure sensor 4. Simultaneously, the mounting block 5 slides on the surface of the limiting rod 13, making it more stable and limiting its movement. When motor B15 is started, it drives the threaded rod C16 to rotate, causing the sliding block A14 and the horizontal plate 3 to move longitudinally, thereby adjusting the longitudinal position of the pressure sensor 4. Simultaneously, the sliding block A14 slides on the surface of the limiting rod 17, making it more stable during movement. This design facilitates strength testing at different locations on the guardrail, allowing for sensor position adjustment in multiple directions. This enables testing to cover more areas, avoiding localized errors that might occur with testing only at a single location, thus significantly improving the flexibility and accuracy of strength testing.

[0025] Example 2: As Figure 1 and Figure 4 As shown, a circular sleeve 21 is fixedly connected to the output end of the hydraulic cylinder 6, a connecting rod 22 is fixedly installed on the surface of the pressure sensor 4, a limiting plate 23 is fixedly installed at one end of the connecting rod 22, a spring 24 is fixedly connected to the side of the limiting plate 23, the connecting rod 22 is slidably connected to the circular sleeve 21, the limiting plate 23 is slidably connected to the circular sleeve 21, and one end of the spring 24 is fixedly connected to the inner side of the circular sleeve 21.

[0026] In this embodiment, when the pressure sensor 4 detects the pressure of the guardrail, the pressure sensor 4 first contacts the surface of the guardrail. At this time, the impact force on the pressure sensor 4 causes the connecting rod 22 and the limiting plate 23 to move inside the sleeve 21. At the same time, the spring 24 is compressed. The spring 24 can offset part of the impact force caused by the collision, thereby reducing the direct impact of these forces on the pressure sensor 4. This prevents the pressure sensor 4 from being damaged due to excessive force when the device detects the strength of the guardrail. As a result, the pressure sensor 4 can obtain more stable and reliable measurement results when performing strength detection.

[0027] The working principle of this embodiment is as follows: First, the guardrail is placed on the surface of the mounting plate 7. Then, by rotating the threaded rod A8, the clamping plate 9 moves up and down, thus clamping and fixing the guardrail. When the motor C19 is started, the bidirectional lead screw 20 rotates, causing the mounting plates 7 to move in opposite directions, thereby adjusting the distance between the mounting plates 7. This allows for flexible adaptation to guardrails of different sizes, facilitating the testing of guardrails of various specifications. Next, the hydraulic cylinder 6 is activated, causing the pressure sensor 4 to move downwards, thus performing a strength test on the guardrail. When the pressure sensor 4 performs the pressure test on the guardrail, it first contacts the guardrail surface. The impact force on the pressure sensor 4 causes the connecting rod 22 and the limiting plate 23 to move inside the sleeve 21. Simultaneously, the spring 24 is compressed. The spring 24 can offset some of the impact force caused by the collision, thereby reducing the direct impact of these forces on the pressure sensor 4. This prevents the pressure sensor 4 from being damaged due to excessive force during the strength test of the guardrail. This allows the pressure sensor 4 to obtain more stable and reliable measurement results when performing strength testing. When motor A12 is started, the output end of motor A12 will drive the threaded rod B11 to rotate, thereby causing the mounting block 5 to move laterally, thus adjusting the lateral position of the pressure sensor 4. At the same time, the mounting block 5 will slide on the surface of the limiting rod 13, making it more stable during movement and limiting its position. When motor B15 is started, motor B15 will drive the threaded rod C16 to rotate, causing the sliding block A14 and the cross plate 3 to move longitudinally, thereby adjusting the longitudinal position of the pressure sensor 4. At the same time, the sliding block A14 will slide on the surface of the limiting rod 17, making it more stable during movement. This makes it possible to easily perform strength testing on different positions of the guardrail, and the sensor position can be adjusted in multiple directions, allowing more parts to be covered during testing. This avoids the local errors that may be caused by testing only at a single position, thus significantly improving the flexibility and accuracy of strength testing.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A strength testing device, comprising a support (1), a vertical plate (2), a horizontal plate (3), and a pressure sensor (4), characterized in that: The horizontal plate (3) is slidably connected to a mounting block (5), and a hydraulic cylinder (6) is fixedly mounted on the surface of the mounting block (5). The bracket (1) is slidably connected to a mounting plate (7), and a threaded rod A (8) is rotatably connected inside the mounting plate (7). A clamping plate (9) is fixedly connected to one end of the threaded rod A (8), and a rotating head (10) is fixedly mounted on one end of the threaded rod A (8). The horizontal plate (3) is rotatably connected to a threaded rod B (11), and a motor A (12) is fixedly mounted inside the horizontal plate (3). A limiting rod 1 (13) is fixedly installed inside the plate (3). A sliding block A (14) is fixedly installed on the side of the horizontal plate (3). A motor B (15) is fixedly installed on the side of the vertical plate (2). A threaded rod C (16) is rotatably connected inside the vertical plate (2). A limiting rod 2 (17) is fixedly installed inside the vertical plate (2). A sliding block B (18) is fixedly installed on the surface of the mounting plate (7). A motor C (19) is fixedly installed on the side of the bracket (1). A two-way lead screw (20) is rotatably connected inside the bracket (1).

2. The strength testing device according to claim 1, characterized in that: The output end of the motor A (12) is fixedly connected to one end of the threaded rod B (11), the threaded rod B (11) is threadedly connected to the mounting block (5), and the limiting rod (13) is slidably connected to the mounting block (5).

3. The strength testing device according to claim 1, characterized in that: The sliding block A (14) is slidably connected to the upright plate (2), the output end of the motor B (15) is fixedly connected to one end of the threaded rod C (16), the threaded rod C (16) is threadedly connected to the sliding block A (14), and the limiting rod II (17) is slidably connected to the sliding block A (14).

4. The strength testing device according to claim 1, characterized in that: The sliding block B (18) is slidably connected to the bracket (1), the output end of the motor C (19) is fixedly connected to one end of the bidirectional lead screw (20), and the bidirectional lead screw (20) is threadedly connected to the sliding block B (18).

5. The strength testing device according to claim 1, characterized in that: The output end of the hydraulic cylinder (6) is fixedly connected to a round sleeve (21), and a connecting rod (22) is fixedly installed on the surface of the pressure sensor (4). A limit plate (23) is fixedly installed at one end of the connecting rod (22), and a spring (24) is fixedly connected to the side of the limit plate (23).

6. The strength testing device according to claim 5, characterized in that: The connecting rod (22) is slidably connected to the round sleeve (21), and the limiting plate (23) is slidably connected to the round sleeve (21).

7. The strength testing device according to claim 5, characterized in that: One end of the spring (24) is fixedly connected to the inside of the sleeve (21).

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