Bridge crash barrier

Abstract

The application relates to the field of anti-collision guardrails, and discloses a bridge anti-collision guardrail. In the application, an L-shaped fixing plate is fixedly installed on the surface of the bridge guardrail, a rear plate is welded on one side surface of the L-shaped fixing plate, a supporting column is fixedly installed on the upper surface of the rear plate, a connecting shaft is movably inserted into the surface of the supporting block, a fixing ring is fixedly connected to the surface of the connecting shaft, a protection plate is welded on the surface of the fixing ring, a U-shaped connecting plate is welded on one side surface of the protection plate, and a roller is movably connected to the surface of the connecting rod. During use, the screw rod can move the movable block back and forth, drives the connecting rod to adjust the angle, the connecting rod can drive the protection plate to adjust the angle as the supporting point of the protection plate, the angle-adjustable protection plate can be optimized and adjusted according to specific use scenes, the best protection effect can be ensured under various conditions, and the out-of-control vehicle can be effectively blocked from rushing into the river, so that the driving safety is ensured.

Description

Technical Field

[0001] This application belongs to the field of crash barrier technology, specifically a bridge crash barrier. Background Technology

[0002] Using high-strength materials to prevent out-of-control vehicles from falling off bridges, especially on viaducts, river-crossing bridges, or cliff sections, can significantly reduce the fatality rate of serious accidents.

[0003] Existing bridge crash barriers use fixed connections, which reduces their protective effect when a vehicle impacts at an oblique angle, potentially leading to vehicle rollover or barrier breakage. A new type of bridge crash barrier is now available that can adjust the tilt angle of the barrier based on the bridge's orientation and curve radius, thereby reducing the risk of rollover. Utility Model Content

[0004] The purpose of this application is to provide a bridge crash barrier that addresses the problem that existing bridge crash barriers, which use fixed connections, reduce their protective effect when a vehicle impacts them at an oblique angle, potentially leading to vehicle rollover or barrier breakage.

[0005] The technical solution adopted in this application is as follows: A bridge anti-collision guardrail, wherein an L-shaped fixing plate is fixedly installed on the surface of the bridge guardrail, a rear plate is welded to one side surface of the L-shaped fixing plate, a support column is fixedly installed on the upper surface of the rear plate, a connecting column is movably connected to the inner wall surface of the support column, a fixing block is welded to the upper surface of the connecting column, a connecting shaft is movably inserted into the surface of the fixing block, a fixing ring is fixedly connected to the surface of the connecting shaft, a protective plate is welded to the surface of the fixing ring, a U-shaped connecting plate is welded to one side surface of the protective plate, a movable rod is fixedly installed on the surface of the U-shaped connecting plate, a connecting rod is rotatably connected to the surface of the movable rod, and a roller is movably connected to the surface of the connecting rod.

[0006] By adopting the above technical solution, during the use of this device, the rotating handle can be turned to drive the lead screw to rotate in a circle. The lead screw can move the movable block back and forth, driving the connecting rod to adjust the angle. Since the connecting rod serves as the support point of the protective plate, it can drive the protective plate to adjust the angle. The adjustable protective plate can be optimized and adjusted according to the specific usage scenario to ensure that it can provide the best protection effect in various situations, effectively preventing out-of-control vehicles from rushing into the river and protecting driving safety.

[0007] In a preferred embodiment, a connecting rod is fixedly mounted on the surface of the roller, a movable block is movably connected to the surface of the connecting rod, and a lead screw is movably connected to the surface of the movable block.

[0008] By adopting the above technical solution, the support plate is movably connected to the lead screw. When the lead screw rotates, it drives the roller to move. The lead screw can convert rotational motion into linear motion, with small transmission error and high repeatability. It is suitable for scenarios that require precise control. The threaded structure of the lead screw can withstand large axial loads, making it suitable for heavy-duty or impact-resistant applications.

[0009] In a preferred embodiment, a guide rail is fixedly mounted on the upper surface of the rear plate.

[0010] By adopting the above technical solution, the movement direction of the moving parts is restricted by the rigid structure to prevent deviation or shaking. The contact between the roller and the guide rail is rolling friction, which has a low coefficient of friction and reduces driving energy consumption.

[0011] In a preferred embodiment, a buffer spring is adhered to the upper surface of the protective plate, and a buffer layer is fixedly installed on the upper surface of the buffer spring.

[0012] By adopting the above technical solution, when a vehicle collides with the guardrail, the buffer spring absorbs part of the impact force through elastic deformation, reducing the impact directly transmitted to the vehicle and passengers. The buffer spring can automatically adjust the buffering force according to the impact speed, offering greater flexibility than a rigid structure.

[0013] In a preferred embodiment, a damping spring is bonded to the lower surface of the connecting column.

[0014] By adopting the above technical solutions, the damping springs can effectively isolate vibrations, prevent impact forces from being transmitted to the bridge through the bridge railings, reduce fatigue damage to the bridge caused by long-term vibrations, and compared with rigid railings, the elastic deformation of the damping springs can slow down the instantaneous impact force when a vehicle collides, reduce the risk of injury to occupants, improve the safety of the railings, and reduce accident injuries.

[0015] In a preferred embodiment, the surface of the bridge railing is provided with threaded holes, and connecting screws are movably inserted into the surface of the threaded holes.

[0016] By adopting the above technical solution, the connecting screws can be repeatedly disassembled and reassembled, which facilitates maintenance, replacement of parts or adjustment of the structure. The pre-tightening force generates frictional locking, which can withstand large static and dynamic loads.

[0017] In a preferred embodiment, a rotating handle is fixedly mounted on one side surface of the lead screw.

[0018] By adopting the above technical solution, the screw can be directly driven to rotate by rotating the handle, realizing linear motion. Manual operation allows for precise control of the movement distance, facilitating the adjustment of the angle of the protective plate.

[0019] In a preferred embodiment, a support plate is fixedly connected to the upper surface of the rear plate adjacent to the guide rail.

[0020] By adopting the above technical solution, the support plate provides an intermediate fulcrum for the lead screw, reducing the deflection of the lead screw due to its own weight or load. The support plate constrains the radial swing of the lead screw through the contact surface, thereby improving motion stability.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0022] In this application, during the use of this device, the rotating handle can be turned to drive the lead screw to rotate in a circle. The lead screw can move the movable block back and forth, driving the connecting rod to adjust the angle. Since the connecting rod serves as the support point of the protective plate, it can drive the protective plate to adjust the angle. The adjustable protective plate can be optimized and adjusted according to the specific usage scenario to ensure that it can provide the best protection effect in various situations, effectively preventing out-of-control vehicles from rushing into the river and protecting driving safety. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of the bridge crash barrier of this application;

[0024] Figure 2 This is a schematic diagram of the bridge crash barrier structure from a second perspective in this application;

[0025] Figure 3 This is a schematic diagram of the angle adjustment device in this application;

[0026] Figure 4 This is a schematic diagram of the buffer device structure in this application;

[0027] Figure 5 This is a schematic diagram of the connecting mechanism structure in this application.

[0028] The markings in the diagram are: 1. Bridge railing; 2. Buffer layer; 3. Connecting shaft; 4. Fixing ring; 5. Fixing block; 6. Rear plate; 7. Connecting screw; 8. L-shaped fixing plate; 9. Rotating handle; 10. Lead screw; 11. Movable block; 12. Connecting rod; 13. Protective plate; 14. U-shaped connecting plate; 15. Movable rod; 16. Support column; 17. Connecting rod; 18. Roller; 19. Guide rail; 20. Support plate; 21. Buffer spring; 22. Vibration damping spring; 23. Connecting column. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-5 ,

[0031] Example:

[0032] A bridge crash barrier includes an L-shaped fixing plate 8 fixedly installed on the surface of the bridge barrier 1. A rear plate 6 is welded to one side of the L-shaped fixing plate 8. A support column 16 is fixedly installed on the upper surface of the rear plate 6. A connecting column 23 is movably connected to the inner wall surface of the support column 16. A fixing block 5 is welded to the upper surface of the connecting column 23. A connecting shaft 3 is movably inserted into the surface of the fixing block 5. A fixing ring 4 is fixedly connected to the surface of the connecting shaft 3. A protective plate 13 is welded to the surface of the fixing ring 4. A U-shaped connecting plate 14 is welded to one side of the protective plate 13. A movable rod 15 is fixedly installed on the surface of the U-shaped connecting plate 14. A connecting rod 17 is rotatably connected to the surface of the movable rod 15. A roller 18 is movably connected to the surface of the connecting rod 17.

[0033] During use, the rotating handle 9 can be rotated to drive the lead screw 10 to rotate in a circle. The lead screw 10 can move the movable block 11 back and forth, driving the connecting rod 17 to adjust the angle. Since the connecting rod 17 serves as a support point for the protective plate 13, it can drive the protective plate 13 to adjust the angle. The adjustable protective plate 13 can be optimized and adjusted according to the specific usage scenario to ensure that it can provide the best protection effect in various situations, effectively preventing out-of-control vehicles from rushing into the river and protecting driving safety.

[0034] A connecting rod 12 is fixedly mounted on the surface of the roller 18. A movable block 11 is movably connected to the surface of the connecting rod 12. A lead screw 10 is movably connected to the surface of the movable block 11. The support plate 20 is movably connected to the lead screw 10. When the lead screw 10 rotates, it drives the roller 18 to move. The lead screw 10 can convert rotational motion into linear motion, with small transmission error and high repeatability, making it suitable for scenarios requiring precise control. The threaded structure of the lead screw 10 can withstand large axial loads, making it suitable for heavy-duty or impact-resistant applications.

[0035] A guide rail 19 is fixedly mounted on the upper surface of the rear plate 6. The rigid structure restricts the movement direction of the moving parts to prevent deviation or shaking. The contact between the roller 18 and the guide rail 19 is rolling friction, which has a low coefficient of friction and reduces drive energy consumption.

[0036] A buffer spring 21 is bonded to the upper surface of the protective plate 13, and a buffer layer 2 is fixedly installed on the upper surface of the buffer spring 21. When a vehicle hits the guardrail, the buffer spring 21 absorbs part of the impact force through elastic deformation, reducing the impact directly transmitted to the vehicle and passengers. The buffer spring 21 can automatically adjust the buffering force according to the impact speed, offering greater flexibility than a rigid structure.

[0037] A damping spring 22 is bonded to the lower surface of the connecting post 23. The damping spring 22 can effectively isolate vibration, prevent impact force from being transmitted to the bridge through the bridge railing 1, reduce fatigue damage to the bridge caused by long-term vibration, and compared with rigid railings, the elastic deformation of the damping spring 22 can reduce the instantaneous impact force when a vehicle crashes, reduce the risk of injury to occupants, improve the safety of the railing, and reduce accident injuries.

[0038] The surface of the bridge railing 1 has threaded holes, and connecting screws 7 are movably inserted into the surface of the threaded holes. The connecting screws 7 allow for repeated disassembly and reassembly, facilitating maintenance, replacement of parts, or adjustment of the structure. Friction locking is generated by pre-tightening force, which can withstand large static and dynamic loads.

[0039] A rotating handle 9 is fixedly installed on one side surface of the lead screw 10. Rotating the handle 9 can directly drive the lead screw 10 to rotate, achieving linear motion. Manual operation allows for precise control of the movement distance, facilitating the adjustment of the angle of the protective plate 13.

[0040] A support plate 20 is fixedly connected to the upper surface of the rear plate 6 adjacent to the guide rail 19. The support plate 20 provides an intermediate fulcrum for the lead screw 10, reducing the deflection of the lead screw 10 due to its own weight or load. The support plate 20 constrains the radial swing of the lead screw through the contact surface, thereby improving motion stability.

[0041] The implementation principle of an embodiment of a bridge crash barrier in this application is as follows:

[0042] During use, the rotating handle 9 can be rotated to drive the lead screw 10 to rotate in a circle. The lead screw 10 can move the movable block 11 back and forth, driving the connecting rod 17 to adjust the angle. Since the connecting rod 17 serves as a support point for the protective plate 13, it can drive the protective plate 13 to adjust the angle. The adjustable protective plate 13 can be optimized and adjusted according to the specific usage scenario to ensure that it can provide the best protection effect in various situations, effectively preventing out-of-control vehicles from rushing into the river and protecting driving safety.

[0043] The support plate 20 is movably connected to the lead screw 10. When the lead screw 10 rotates, it drives the roller 18 to move. The lead screw 10 can convert rotational motion into linear motion, with small transmission error and high repeatability. It is suitable for scenarios that require precise control. The threaded structure of the lead screw 10 can withstand large axial loads, making it suitable for heavy-duty or impact-resistant applications.

[0044] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A bridge crash barrier, comprising a bridge railing (1), characterized in that: An L-shaped fixing plate (8) is fixedly installed on the surface of the bridge railing (1). A rear plate (6) is welded to one side of the L-shaped fixing plate (8). A support column (16) is fixedly installed on the upper surface of the rear plate (6). A connecting column (23) is movably connected to the inner wall surface of the support column (16). A fixing block (5) is welded to the upper surface of the connecting column (23). A connecting shaft (3) is movably inserted into the surface of the fixing block (5). A fixing ring (4) is fixedly connected to the surface of the connecting shaft (3). A protective plate (13) is welded to the surface of the fixing ring (4). A U-shaped connecting plate (14) is welded to one side of the protective plate (13). A movable rod (15) is fixedly installed on the surface of the U-shaped connecting plate (14). A connecting rod (17) is rotatably connected to the surface of the movable rod (15). A roller (18) is movably connected to the surface of the connecting rod (17).

2. A bridge crash barrier as described in claim 1, characterized in that: A connecting rod (12) is fixedly installed on the surface of the roller (18), a movable block (11) is movably connected to the surface of the connecting rod (12), and a lead screw (10) is movably connected to the surface of the movable block (11).

3. A bridge crash barrier as described in claim 1, characterized in that: The upper surface of the rear plate (6) is fixedly mounted with a guide rail (19).

4. A bridge crash barrier as described in claim 1, characterized in that: A buffer spring (21) is bonded to the upper surface of the protective plate (13), and a buffer layer (2) is fixedly installed on the upper surface of the buffer spring (21).

5. A bridge crash barrier as described in claim 1, characterized in that: A damping spring (22) is bonded to the lower surface of the connecting column (23).

6. A bridge crash barrier as described in claim 1, characterized in that: The surface of the bridge railing (1) is provided with threaded holes, and connecting screws (7) are movably inserted into the surface of the threaded holes.

7. A bridge crash barrier as described in claim 2, characterized in that... A rotating handle (9) is fixedly installed on one side surface of the lead screw (10).

8. A bridge crash barrier as described in claim 3, characterized in that: A support plate (20) is fixedly connected to the upper surface of the rear plate (6) at the adjacent position of the guide rail (19).

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