Corrugated guardrail anti-collision performance testing device

Abstract

The utility model discloses a wave-shaped guardrail anti-collision performance testing device which comprises a supporting plate, a first fixing block is arranged on one side of the upper surface of the supporting plate, a hydraulic push rod is arranged on one side of the first fixing block, a pipeline supporting block is arranged in the middle of the upper surface of the supporting plate, and a main pipeline is arranged on the pipeline supporting block. An impact block is arranged on the side, close to the hydraulic push rod, in the main pipeline, under the action of the hydraulic push rod, the impact block can be pushed to slide in the main pipeline to conduct impact operation, and an acceleration detector is arranged on the main pipeline. According to the utility model, vehicle collision is simulated through the hydraulic system, the anti-collision performance of the wave-shaped guardrail can be effectively detected, the device has the advantages of high repeatability, multifunctionality, environmental protection and the like, and a test process which is low in cost, high in safety, simple and convenient to operate and accurate in data is realized; reliable technical support is provided for research, development and improvement of traffic safety facilities, and remarkable economic benefits and social benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety facility testing technology, specifically a wave-shaped guardrail anti-collision performance testing device. Background Technology

[0002] Corrugated beam guardrails are an important highway safety facility, primarily used at openings in the median strip of highways. Through their combined corrugated beam movable steel guardrail structure, they effectively prevent out-of-control vehicles from running off the road, ensuring driving safety. Corrugated beam guardrails mainly consist of two corrugated beam steel guardrail panels and two posts fixedly clamped between them. During normal highway operation, the guardrail can be easily inserted into pre-set insertion holes at the opening using the plug-in posts, serving as a barrier and providing protection. In the event of a vehicle collision, the corrugated beam steel guardrail panels have excellent impact resistance and energy absorption properties, making them less prone to destruction while providing excellent protection for the vehicle and its occupants. Currently, the general testing process uses vehicles to simulate the most realistic scene. However, using vehicles for testing increases the cost and the risk of accidents. Utility Model Content

[0003] The purpose of this utility model is to overcome or at least partially solve the above problems by proposing a wave-shaped guardrail anti-collision performance testing device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a wave-shaped guardrail anti-collision performance testing device, comprising a support plate, a first fixing block disposed on one side of the upper surface of the support plate, a hydraulic push rod disposed on one side of the first fixing block, a pipe support block disposed in the middle of the upper surface of the support plate, a main pipe disposed on the pipe support block, an impact block disposed inside the main pipe near the hydraulic push rod, under the action of the hydraulic push rod, the impact block can be pushed to slide inside the main pipe to perform an impact operation, an accelerometer disposed on the main pipe, a data display screen disposed on the upper surface of the support plate near the accelerometer and electrically connected to the accelerometer, a clamping assembly disposed on the upper surface of the support plate away from the first fixing block, the clamping assembly clamping a test sample, and the opening of the main pipe corresponding to the test sample.

[0005] In a preferred embodiment, an inlet is provided on one side of the top of the main pipe.

[0006] In a preferred embodiment, an instrument mounting hole is provided on one side of the outer wall of the main pipeline, and the accelerometer is installed in the instrument mounting hole.

[0007] In a preferred embodiment, a weighing instrument is disposed on the side of the upper surface of the support plate away from the data display screen, and a weight display screen is electrically connected to one side of the weighing instrument.

[0008] In a preferred embodiment, a container is provided on one corner of the upper surface of the support plate.

[0009] In a preferred embodiment, the clamping assembly includes a second fixing block, a third fixing block, a threaded hole, a fixing plate, a through hole, and screws. Two second fixing blocks are respectively disposed at both ends of one side of the support plate. Third fixing blocks are disposed at both ends of the second fixing blocks facing the main pipe. Threaded holes are provided on the third fixing blocks. Fixing plates are disposed on one side of the two third fixing blocks located on the same second fixing block. Through holes are provided on the fixing plates at positions corresponding to the threaded holes. The fixing plates are fixed to the third fixing blocks by screws passing through the through holes and screwing into the threaded holes. The two ends of the test sample are respectively located between the two third fixing blocks on the two second fixing blocks and are fixed by the fixing plates.

[0010] In a preferred embodiment, a front protective baffle and a rear protective baffle are respectively provided on the upper surface of the support plate and on both sides of the clamping assembly. There are two front protective baffles, which are respectively located on both sides of the main pipe and are in contact with the outer wall of the main pipe.

[0011] Compared with existing technologies, this utility model provides a test device for the anti-collision performance of corrugated guardrails. By simulating vehicle collisions through a hydraulic system, it can not only effectively test the anti-collision performance of corrugated guardrails, but also has the advantages of strong repeatability, multi-functionality and environmental friendliness. It realizes a low-cost, high-safety, easy-to-operate and accurate testing process, providing reliable technical support for the research and development and improvement of traffic safety facilities, and has significant economic and social benefits. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 for Figure 1 A three-dimensional structural diagram of the main pipeline;

[0014] Figure 3 for Figure 1 A three-dimensional structural diagram of the clamping component;

[0015] Figure 4 for Figure 3 A schematic diagram of the through hole structure in the clamping assembly.

[0016] In the diagram: 1. Support plate; 2. First fixing block; 3. Hydraulic push rod; 4. Pipe support block; 5. Main pipe; 6. Inlet; 7. Impact block; 8. Instrument mounting hole; 9. Accelerometer; 10. Weighing instrument; 11. Data display screen; 12. Item placement box; 13. Front protective baffle; 14. Rear protective baffle; 15. Weight display screen; 16. Second fixing block; 17. Third fixing block; 18. Threaded hole; 19. Fixing plate; 20. Through hole; 21. Screw; 22. Test sample. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this description, those skilled in the art can make creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0019] This utility model discloses a wave-shaped guardrail anti-collision performance testing device, which solves the technical problems in the prior art. The overall concept is as follows:

[0020] Example 1:

[0021] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A wave-shaped guardrail anti-collision performance testing device includes a support plate 1, which serves as the basic platform for fixing and supporting other components. A first fixing block 2 is provided on one side of the upper surface of the support plate 1, and a hydraulic push rod 3 is provided on one side of the first fixing block 2. A pipe support block 4 is provided in the middle of the upper surface of the support plate 1, and a main pipe 5 is provided on the pipe support block 4. An impact block 7 is provided in the main pipe 5 near the hydraulic push rod 3. Under the action of the hydraulic push rod 3, the impact block 7 can be pushed to slide in the main pipe 5 to perform an impact operation, simulating the process of a vehicle hitting a wave-shaped guardrail. An accelerometer 9 is provided on the main pipe 5. The accelerometer 9 is a wireless accelerometer sensor MMS-F-A01. A data display screen 11 is provided on the upper surface of the support plate 1 near the accelerometer 9 and is electrically connected to the accelerometer 9. A clamping assembly is provided on the upper surface of the support plate 1 away from the first fixing block 2. The clamping assembly holds a test sample 22, and the opening of the main pipe 5 corresponds to the test sample 22.

[0022] In practice, an inlet 6 is provided on one side of the top of the main pipe 5 to place the impact block 7 into the main pipe 5.

[0023] In practice, an instrument mounting hole 8 is provided on one side of the outer wall of the main pipe 5. The accelerometer 9 is installed in the instrument mounting hole 8. The accelerometer 9 is connected to the main pipe 5 through the instrument mounting hole 8 and can detect the acceleration change of the impact block 7 in real time during the impact process.

[0024] In a specific implementation, a weighing instrument 10 is provided on the side of the upper surface of the support plate 1 away from the data display screen 11. A weight display screen 15 is electrically connected to one side of the weighing instrument 10. The weighing instrument 10 is used to measure the weight of the impact block 7, and the weight display screen 15 is used to display the measurement result of the weighing instrument 10.

[0025] In practice, a storage box 12 is provided on one corner of the upper surface of the support plate 1 for placing tools and record sheets required during the test, such as screwdrivers, notebooks, pens, etc.

[0026] In specific implementation, the clamping assembly includes a second fixing block 16, a third fixing block 17, a threaded hole 18, a fixing plate 19, a through hole 20, and a screw 21. Two second fixing blocks 16 are respectively set at both ends of one side of the support plate 1. The second fixing blocks 16 facing the main pipe 5 have third fixing blocks 17 at both ends. The third fixing blocks 17 have threaded holes 18. The two third fixing blocks 17 on the same second fixing block 16 have fixing plates 19 on one side. The fixing plates 19 have through holes 20 at positions corresponding to the threaded holes 18. The fixing plates 19 are fixed to the third fixing blocks 17 by screws 21 passing through the through holes 20 and screwing into the threaded holes 18. The two ends of the test sample 22 are respectively located between the two third fixing blocks 17 on the two second fixing blocks 16 and are fixed by the fixing plates 19. The second fixing blocks 16 and the third fixing blocks 17 are connected to the fixing plates 19 through the threaded holes 18 and the screws 21 to form a stable clamping structure for fixing the test sample 22 and ensuring its stability during impact.

[0027] In specific implementation, a front protective baffle 13 and a rear protective baffle 14 are respectively provided on the upper surface of the support plate 1 and on both sides of the clamping assembly. There are two front protective baffles 13, which are located on both sides of the main pipe 5 and are in contact with the outer wall of the main pipe 5.

[0028] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows:

[0029] During use, the operator gently places the impact block 7 onto the weighing instrument 10, ensuring it is stable and does not tilt. Observe and record the value on the weight display screen 15. Record the reading only after it has stabilized to avoid errors. Fill in the recorded data in a dedicated test record sheet, noting the test number, date, and time. Remove the impact block 7 from the weighing instrument 10 and carefully place it into the inlet 6. Ensure the impact block 7 is fully inside the pipe without any jamming or obstruction. Activate the hydraulic push rod 3, ensuring it is in standby mode. Check that the hydraulic system pressure is within the specified range and adjust if necessary. Activate the hydraulic push rod 3 to quickly push the impact block 7 along the main pipe 5 until it impacts the test sample 22. At the moment of impact, observe and record the specific details of the collision, including the impact angle and impact point. Also ensure the data display screen 11 is functioning correctly, recording the acceleration changes during the impact process in real time. Finally, calculate the final impact force based on the weight of the impact block 7 (already recorded) and the maximum acceleration value displayed on the data display screen 11.

[0030] The above description of the embodiments is provided to facilitate understanding and use of the present invention by those skilled in the art. It is obvious to those skilled in the art that various modifications can be made to the embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A device for testing the crashworthiness of a wavelike barrier, characterized in that: The utility model provides a kind of acceleration detection device, including support plate (1), the upper surface side of the support plate (1) is provided with first fixed block (2), one side of the first fixed block (2) is provided with hydraulic push rod (3), the upper surface middle part of the support plate (1) is provided with pipeline support block (4), the pipeline support block (4) is provided with main pipeline (5), the main pipeline (5) is provided with impact block (7) in the side close to hydraulic push rod (3), under the action of the hydraulic push rod (3), impact block (7) can be pushed and slide in main pipeline (5) and impact operation is carried out, the main pipeline (5) is provided with acceleration detector (9), the upper surface of the support plate (1) is provided with data display screen (11) in the side close to acceleration detector (9), and acceleration detector (9) is electrically connected, the upper surface of the support plate (1) is provided with clamping component in the side away from first fixed block (2), the clamping component is clamped with detection sample (22), and the through port of the main pipeline (5) corresponds detection sample (22).

2. A device for testing the crashworthiness of a wavy barrier according to claim 1, characterized in that: The top side of the main pipeline (5) is provided with an inlet (6).

3. A device for testing the crashworthiness of a wavy barrier according to claim 2, characterized in that: The outer wall of the main pipeline (5) is provided with an instrument mounting hole (8), and the acceleration detector (9) is mounted in the instrument mounting hole (8).

4. The device of claim 3, wherein: The upper surface of the support plate (1) is provided with a weighing instrument (10) on the side away from the data display screen (11), and one side of the weighing instrument (10) is electrically connected with a weight display screen (15).

5. A device for testing the crashworthiness of a wavy barrier according to claim 4, characterized in that: An article placing box (12) is arranged at a corner of the upper surface of the support plate (1).

6. A device for testing the crashworthiness of a wavy barrier according to claim 5, characterized in that: The clamping component includes a second fixed block (16), a third fixed block (17), a threaded hole (18), a fixed plate (19), a through hole (20), and a screw (21). Two second fixed blocks (16) are arranged at both ends of one side of the support plate (1). The upper and lower ends of one side of each second fixed block (16) towards the main pipeline (5) are provided with a third fixed block (17). The third fixed block (17) is provided with a threaded hole (18). Two third fixed blocks (17) on the same second fixed block (16) are provided with a fixed plate (19) on one side. The fixed plate (19) is provided with a through hole (20) corresponding to the threaded hole (18). The fixed plate (19) is fixed on the third fixed block (17) by screwing the screw (21) through the through hole (20) into the threaded hole (18). The two ends of the detection sample (22) are between the two third fixed blocks (17) on the two second fixed blocks (16) and are fixed by the fixed plate (19).

7. A device for testing the crashworthiness of a wavy barrier according to any one of claims 1 to 6, characterized in that: The upper surface of the support plate (1) is provided with a front protection baffle (13) and a rear protection baffle (14) on both sides of the clamping component. The front protection baffle (13) is in contact with the outer wall of the main pipeline (5).

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