Rapidly assembled and disassembled guardrail for traffic safety facility engineering

Abstract

The utility model relates to the technical field of guardrails capable of being rapidly disassembled and assembled, and provides a guardrail capable of being rapidly disassembled and assembled for traffic safety facility engineering, which comprises a guardrail shell, a forward and reverse screw rod is rotatably connected in the guardrail shell and extends out of one end, and the extending end of the forward and reverse screw rod is fixedly connected with a crank. Two internal thread blocks are in threaded connection with the outer surface of the positive and negative screw rod, first shaft blocks are fixedly connected to the bottoms of the internal thread blocks, connecting rods are rotatably connected to the interiors of the first shaft blocks, second shaft blocks are rotatably connected to the ends, away from the first shaft blocks, of the connecting rods, and a lifting plate is fixedly connected to the bottoms of the two second shaft blocks. The device is provided with a lifting height adjustable structure, meets the dual requirements of quick disassembly and assembly and flexible height adjustment, is suitable for scenes needing frequent movement and rearrangement of guardrails, can easily and accurately adjust the height of the cross rod according to actual requirements, is simple to operate, and can meet the protection requirements of different use scenes and personnel.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and in particular to quick-assembly guardrails for traffic safety facility engineering. Background Technology

[0002] Quick-release guardrails for traffic safety facilities serve multiple purposes. In urban roads and highways, they effectively separate motor vehicle lanes from non-motor vehicle lanes and sidewalks, ensuring vehicles and pedestrians travel in their designated areas, reducing mutual interference, and lowering the probability of traffic accidents. During road construction and maintenance, they can quickly demarcate construction areas, separating the construction site from normal traffic flow, ensuring the safety of construction personnel and equipment, as well as passing vehicles and pedestrians, allowing construction to proceed smoothly and orderly. At curves, ramps, intersections, and other special road sections, the proper installation of quick-release guardrails can provide drivers with clear directional guidance, helping them maintain the correct driving trajectory and reducing lane departures caused by driving errors.

[0003] However, existing technologies, such as Chinese Publication No. CN215671484U, "A Quick-Assembly Guardrail for Traffic Safety Facilities Engineering," disclose a quick-assembly guardrail for traffic safety facilities engineering. The post is a long, quadrangular rod with a rectangular groove at each of its four corners. A shock-absorbing device is inserted into each groove. Several horizontal sliders for mounting the guardrail are located inside the shock-absorbing device. Each horizontal slider is connected to one end of a guardrail, allowing for the installation of several guardrails between adjacent posts. The sliding surfaces at both ends of the horizontal sliders slide within the transverse grooves of the shock-absorbing device. The inner end face of the horizontal slider is connected to the inner wall of the shock-absorbing device via a spring. Rubber pads are placed at the contact points between the guardrail and the shock-absorbing device. This invention solves the problem of easy deformation and is convenient to install and operate.

[0004] However, this device lacks an adjustable height structure, failing to meet the dual requirements of rapid assembly and disassembly and flexible height adjustment. It is unsuitable for scenarios requiring frequent movement and rearrangement of the guardrails. The height of the crossbars cannot be easily and precisely adjusted according to actual needs, making operation complex and unable to meet the protection requirements of different usage scenarios and personnel. Furthermore, the lack of a telescopic rod embedding connection structure prevents quick separation of the telescopic rod from other components, reducing the efficiency of guardrail installation and disassembly. This hinders the rapid deployment or removal of guardrails in different scenarios, potentially causing excessive stress on individual components, leading to damage or deformation. Consequently, the overall impact resistance and stability of the guardrail are reduced, compromising its protective performance. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art, which are unable to meet the dual requirements of quick assembly and disassembly and flexible height adjustment, are not suitable for scenarios that require frequent movement and rearrangement of guardrails, cannot easily and accurately adjust the height of the crossbars according to actual needs, are complicated to operate, cannot meet the protection needs of different usage scenarios and personnel, cannot quickly separate the telescopic bar from other components, reduce the installation and disassembly efficiency of guardrails, are not convenient for quick deployment or removal of guardrails in different scenarios, and cause excessive stress on a single component, resulting in damage or deformation, thereby reducing the overall impact resistance and stability of the guardrail and failing to guarantee its protective performance.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-release guardrail for traffic safety facilities, comprising a guardrail shell, wherein a positive and negative lead screw is rotatably connected inside the guardrail shell and extends out at one end, and a crank is fixedly connected to the extended end of the positive and negative lead screw, and two internal threaded blocks are threadedly connected to the outer surface of the positive and negative lead screw, a first shaft block is fixedly connected to the bottom of the internal threaded block, a connecting rod is rotatably connected inside the first shaft block, a second shaft block is rotatably connected to the end of the connecting rod away from the first shaft block, a lifting plate is fixedly connected to the bottom of the two second shaft blocks, the outer surface of the lifting plate is movably embedded in the inner surface of the guardrail shell, and multiple lockable wheels are rotatably connected to the bottom of the lifting plate, which can drive the positive and negative lead screw to rotate inside the guardrail shell through the crank.

[0007] In a preferred embodiment, a limiting plate is fixedly connected to the top of the internal threaded block, and a limiting groove is formed on the inner surface of the guardrail shell. The outer surfaces of the two limiting plates are movably embedded in the limiting groove. The limiting plate at the top of the internal threaded block can only move in the slotting direction of the limiting groove. Therefore, rotating the thread can drive the internal threaded block to move along the slotting direction of the limiting groove.

[0008] In a preferred embodiment, two positioning rods are movably embedded on one side of the guardrail shell, and a movable plate is fixedly connected to one end of the two positioning rods. The movable plate and the positioning rods can extend outward.

[0009] In a preferred embodiment, an internal threaded sleeve is fixedly connected to one side of the movable plate, and a threaded rod is threadedly connected to the inner surface of the internal threaded sleeve. Rotating the thread will drive the internal threaded sleeve.

[0010] In a preferred embodiment, one end of the threaded rod is rotatably connected to a fixing block, one side of which is fixedly connected to the inner surface of the guardrail shell, and the threaded rod can rotate on one side of the fixing block.

[0011] In a preferred embodiment, a rotating wheel is fixedly connected to the end of the threaded rod away from the fixed block. A rocker arm is movably embedded on the inner surface of the rotating wheel. The threaded rod can rotate inside the shaft plate and on one side of the fixed block by rotating the rocker arm and the rotating wheel.

[0012] In a preferred embodiment, the outer surface of the threaded rod is rotatably connected to a shaft plate, one side of which is fixedly connected to the inner surface of the guardrail housing, and the threaded rod can rotate inside the shaft plate.

[0013] In a preferred embodiment, the guardrail shell has two positioning holes on the side away from the positioning rod, and a through groove on the side of the guardrail shell near the rocker arm. The positioning rod extends outward and is embedded into the positioning hole of the next guardrail shell, thus completing the interconnection of the guardrail shells.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model has a height-adjustable structure, which meets the dual requirements of quick assembly and disassembly and flexible height adjustment. It is suitable for scenarios where guardrails need to be frequently moved and rearranged. The height of the crossbar can be easily and accurately adjusted according to actual needs. It is simple to operate and can meet the protection needs of different usage scenarios and personnel.

[0016] 2. This utility model has a telescopic rod embedded connection structure, which can quickly separate the telescopic rod from other components, improve the installation and dismantling efficiency of the guardrail, facilitate the rapid deployment or removal of the guardrail in different scenarios, and avoid damage or deformation caused by excessive stress on a single component, thereby improving the overall impact resistance and stability of the guardrail and ensuring its protective performance. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the quick-release guardrail for traffic safety facilities provided by this utility model;

[0018] Figure 2 A schematic diagram of the bottom structure of the quick-release guardrail for traffic safety facilities provided by this utility model;

[0019] Figure 3 A cross-sectional structural diagram of the quick-assembly guardrail for traffic safety facilities provided by this utility model;

[0020] Figure 4 A schematic diagram of the disassembly structure of the quick-release guardrail for traffic safety facilities provided by this utility model;

[0021] Figure 5 The quick-release guardrail for traffic safety facilities engineering provided by this utility model Figure 3A magnified structural diagram of A in the diagram.

[0022] Legend:

[0023] 1. Guardrail shell; 2. Positive and negative lead screws; 3. Crank; 4. Internal threaded block; 5. First shaft block; 6. Connecting rod; 7. Second shaft block; 8. Lifting plate; 9. Lockable wheel; 10. Limiting plate; 11. Limiting groove; 12. Positioning rod; 13. Moving plate; 14. Internal threaded sleeve; 15. Threaded rod; 16. Fixing block; 17. Rotary wheel; 18. Rocker arm; 19. Shaft plate; 20. Positioning hole; 21. Through groove. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a quick-release guardrail for traffic safety facilities, including a guardrail shell 1. A positive and negative threaded rod 2 is rotatably connected inside the guardrail shell 1, with one end extending outwards. A crank 3 is fixedly connected to the extended end of the positive and negative threaded rod 2. Two internal threaded blocks 4 are threadedly connected to the outer surface of the positive and negative threaded rod 2. A first shaft block 5 is fixedly connected to the bottom of the internal threaded blocks 4. A connecting rod 6 is rotatably connected inside the first shaft block 5. A second shaft block 7 is rotatably connected to the end of the connecting rod 6 away from the first shaft block 5. A lifting plate 8 is fixedly connected to the bottom of the two second shaft blocks 7. The outer surface of the lifting plate 8 is movably embedded in the inner surface of the guardrail shell 1. Multiple lockable wheels 9 are rotatably connected to the bottom of the lifting plate 8. When the two internal threaded blocks 4 move away from each other, one end of the connecting rod 6 is driven through the first shaft block 5. The other end of the connecting rod 6 pushes the lifting plate 8 through the second shaft blocks 7, causing the lifting plate 8 to rise and fall inside the guardrail shell 1.

[0026] like Figures 1 to 5 As shown, the top of the internal threaded block 4 is fixedly connected to a limiting plate 10, and the inner surface of the guardrail shell 1 is provided with a limiting groove 11. The outer surfaces of the two limiting plates 10 are movably embedded in the inside of the limiting groove 11, and the limiting plate 10 at the top of the internal threaded block 4 can only move in the slotting direction of the limiting groove 11.

[0027] like Figures 1 to 5 As shown, two positioning rods 12 are movably embedded on one side of the guardrail shell 1. One end of the two positioning rods 12 is fixedly connected to a movable plate 13, and the movable plate 13 and the positioning rods 12 can extend outward.

[0028] like Figures 1 to 5 As shown, an internal threaded sleeve 14 is fixedly connected to one side of the movable plate 13. A threaded rod 15 is threadedly connected to the inner surface of the internal threaded sleeve 14. Rotating the thread will drive the internal threaded sleeve 14.

[0029] like Figures 1 to 5 As shown, one end of the threaded rod 15 is rotatably connected to a fixing block 16, and one side of the fixing block 16 is fixedly connected to the inner surface of the guardrail housing 1. The threaded rod 15 can rotate on one side of the fixing block 16.

[0030] like Figures 1 to 5 As shown, a rotating wheel 17 is fixedly connected to one end of the threaded rod 15 away from the fixed block 16. A rocker arm 18 is movably embedded in the inner surface of the rotating wheel 17. The threaded rod 15 can rotate inside the shaft plate 19 and on one side of the fixed block 16 by rotating the rocker arm 18 and the rotating wheel 17.

[0031] like Figures 1 to 5 As shown, a shaft plate 19 is rotatably connected to the outer surface of the threaded rod 15. One side of the shaft plate 19 is fixedly connected to the inner surface of the guardrail housing 1, and the threaded rod 15 can rotate inside the shaft plate 19.

[0032] like Figures 1 to 5 As shown, two positioning holes 20 are provided on the side of the guardrail shell 1 away from the positioning rod 12, and a through groove 21 is provided on the side of the guardrail shell 1 near the rocker arm 18, which can drive the rocker arm 18 and the wheel 17 to rotate.

[0033] Working principle: First, adjust the guardrail housing 1 to a suitable height. The crank 3 drives the forward and reverse screw 2 to rotate inside the guardrail housing 1. The rotating screw drives the internal thread block 4. The limiting plate 10 at the top of the internal thread block 4 can only move in the slotting direction of the limiting groove 11. Therefore, rotating the screw drives the internal thread block 4 to move along the slotting direction of the limiting groove 11. When the two internal thread blocks 4 move away from each other, they drive one end of the connecting rod 6 through the first shaft block 5. The other end of the connecting rod 6 pushes the lifting plate 8 through the second shaft block 7, causing the lifting plate 8 to move within the guardrail housing 1. The guardrail housing 1 is raised and lowered inside, so that the lockable wheel 9 at the bottom of the lifting plate 8 contacts the ground, thereby reaching the target height. After reaching the target position via the lockable wheel 9, the rotation of the lockable wheel 9 can be stopped. Then, the rocker arm 18 and the rotating wheel 17 are rotated through the through groove 21, so that the threaded rod 15 rotates inside the shaft plate 19 and on one side of the fixed block 16. The rotating thread will drive the internal threaded sleeve 14, drive the moving plate 13, and the positioning rod 12 extends outward and is embedded into the positioning hole 20 of the next guardrail housing 1, completing the interconnection of the guardrail housings 1.

[0034] 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 quick-release guardrail for traffic safety facilities engineering, comprising a guardrail shell (1), characterized in that, The guardrail shell (1) is rotatably connected to a positive and negative screw rod (2) with one end extending out. The extended end of the positive and negative screw rod (2) is fixedly connected to a crank (3). The outer surface of the positive and negative screw rod (2) is threaded with two internal thread blocks (4). The bottom of the internal thread block (4) is fixedly connected to a first shaft block (5). The first shaft block (5) is rotatably connected to a connecting rod (6). The end of the connecting rod (6) away from the first shaft block (5) is rotatably connected to a second shaft block (7). The bottom of the two second shaft blocks (7) is fixedly connected to a lifting plate (8). The outer surface of the lifting plate (8) is movably embedded in the inner surface of the guardrail shell (1). The bottom of the lifting plate (8) is rotatably connected to multiple lockable wheels (9).

2. The quick-release guardrail for traffic safety facilities engineering according to claim 1, characterized in that: The top of the internal threaded block (4) is fixedly connected to a limiting plate (10), and the inner surface of the guardrail shell (1) is provided with a limiting groove (11). The outer surfaces of the two limiting plates (10) are movably embedded in the limiting groove (11).

3. The quick-release guardrail for traffic safety facilities engineering according to claim 2, characterized in that: Two positioning rods (12) are movably embedded on one side of the guardrail shell (1), and a movable plate (13) is fixedly connected to one end of the two positioning rods (12).

4. The quick-release guardrail for traffic safety facilities engineering according to claim 3, characterized in that: One side of the movable plate (13) is fixedly connected to an internal threaded sleeve (14), and the inner surface of the internal threaded sleeve (14) is threadedly connected to a threaded rod (15).

5. The quick-release guardrail for traffic safety facilities engineering according to claim 4, characterized in that: One end of the threaded rod (15) is rotatably connected to a fixing block (16), and one side of the fixing block (16) is fixedly connected to the inner surface of the guardrail shell (1).

6. The quick-release guardrail for traffic safety facilities engineering according to claim 5, characterized in that: The threaded rod (15) is fixedly connected to a rotating wheel (17) at one end away from the fixed block (16), and a rocker arm (18) is movably embedded on the inner surface of the rotating wheel (17).

7. The quick-release guardrail for traffic safety facilities engineering according to claim 6, characterized in that: The outer surface of the threaded rod (15) is rotatably connected to a shaft plate (19), and one side of the shaft plate (19) is fixedly connected to the inner surface of the guardrail shell (1).

8. The quick-release guardrail for traffic safety facilities engineering according to claim 7, characterized in that: The guardrail shell (1) has two positioning holes (20) on the side away from the positioning rod (12), and a through groove (21) is provided on the side of the guardrail shell (1) near the rocker arm (18).

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