Folding road guardrail

Abstract

The utility model discloses a folding type road guardrail which comprises an upper folding plate and a lower folding plate, a rotating shaft is arranged at the connecting end of the upper folding plate and the lower folding plate, and the upper folding plate and the lower folding plate are in running fit through the rotating shaft, and the folding type road guardrail is characterized in that a guide rod for supporting the upper folding plate and the lower folding plate is arranged on the outer surface of one end of the rotating shaft; the other ends of the guide rods are connected with fixing plates, compression springs are arranged between the guide rods and the fixing plates, the front ends and the rear ends of the fixing plates are connected with supports used for supporting the whole structure, and the upper ends and the lower ends of the fixing plates are provided with movable connecting rods used for limiting the angles of the upper folding plates and the lower folding plates. According to the folding type road guardrail, the guide rods and the movable connecting rods are arranged, self-adaptive angle adjustment can be achieved according to force generated by collision, the stability and the anti-collision capacity of the guardrail are improved, the safety of pedestrians and vehicles is protected, primary buffering protection can be formed through the guide cylinders and the compression springs, damage caused by rigid collision is reduced, and the safety of the guardrail is improved. And the guardrail is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of road guardrails, in particular to a foldable road guardrail. Background Art

[0002] Existing road guardrails are made of metal or plastic materials and are used to guide and protect road vehicles. Plastic guardrails have higher protection for vehicles, but the maintenance cost is also high. Although metal guardrails can reduce damage to the vehicle itself, they lack protection for the vehicle.

[0003] In order to solve this problem, a protective plate with a spring buffer structure is generally set at the front end of the guardrail to buffer the impact of the vehicle and reduce the damage to itself.

[0004] However, the buffering points of this method are too concentrated, the energetic elastic force of the buffering structure will cause secondary damage to the vehicle, and the effect of a single buffering structure is not ideal.

[0005] So to sum up, how to disperse the impact force of the vehicle to provide better protection for the guardrail and the vehicle is a technical problem that needs to be solved. Utility Model Content

[0006] The utility model aims to provide a foldable road guardrail to solve the problem in the above-mentioned background technology that the buffer points are too concentrated and the buffer effect is not ideal.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable road guardrail, comprising an upper folding plate and a lower folding plate, a rotating shaft is provided at the connecting end of the upper folding plate and the lower folding plate, and the upper folding plate and the lower folding plate rotate together through the rotating shaft, and it is characterized in that a guide rod for supporting the upper folding plate and the lower folding plate is provided on the outer surface of one end of the rotating shaft, the other end of the guide rod is connected to a fixed plate and a compression spring is provided between the fixed plate, the front and rear ends of the fixed plate are connected to supports for supporting the overall structure, and movable connecting rods for limiting the angles of the upper folding plate and the lower folding plate are provided at the upper and lower ends of the fixed plate.

[0008] Limit seats are respectively arranged on the back of the upper folding plate and the lower folding plate, and sliders are arranged inside the limit seats. The sliders can slide inside the limit seats and also limit the angles of the sliders. The angles can be adaptively adjusted according to the force generated by the impact of the upper folding plate and the lower folding plate.

[0009] The slider is slidably matched with the limit seat, and a buffer spring is arranged between the slider and the limit seat. The slider can slide along the inner wall of the limit seat under the linkage of the moving connecting rod, and buffer the buffer spring, so as to release the impact force.

[0010] The movable connecting rod is respectively rotatably matched with the fixed plate and the sliding block. The movable connecting rod serves as a balance piece for the fixed plate and the sliding block, and can make the upper folding plate and the lower folding plate adjust their angles between the rotating shaft and the fixed plate.

[0011] A buffer pad is provided at the front end of the rotating shaft as a preliminary contact piece, which can reduce the damage caused by rigid collision and also protect the rotating shaft.

[0012] A guide cylinder for limiting the guide rod is arranged at the rear end of the fixing plate.

[0013] Compared with the prior art, the foldable road guardrail of the utility model has the following beneficial effects:

[0014] The setting of guide rods and movable connecting rods can adaptively adjust the angle according to the force generated by the impact, which increases the stability and impact resistance of the guardrail and protects the safety of pedestrians and vehicles. The setting of guide cylinders and compression springs can form a primary buffer protection, reduce the damage caused by rigid collisions, and protect the guardrail itself. The setting of double buffer protection can effectively reduce the impact force generated by vehicles and improve the protection effect on vehicles and guardrails. The adaptive angle adjustment of the folding plate and the lower folding plate enables the guardrail plate to adapt to different road environments and traffic conditions, thereby improving the adaptability of road facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall internal side structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0017] Figure 3 It is a rear view structural schematic diagram of the upper folding plate of the utility model.

[0018] In the figure: 1. support; 2. fixed plate; 3. upper folding plate; 4. lower folding plate; 5. rotating shaft; 6. buffer pad; 7. guide cylinder; 8. guide rod; 9. compression spring; 10. limit seat; 11. slider; 12. buffer spring; 13. movable connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model provides a technical solution: a foldable road guardrail, including an upper folding plate 3 and a lower folding plate 4, a rotating shaft 5 is provided at the connecting end of the upper folding plate 3 and the lower folding plate 4, and the upper folding plate 3 and the lower folding plate 4 are rotatably matched through the rotating shaft 5, characterized in that a guide rod 8 for supporting the upper folding plate 3 and the lower folding plate 4 is provided on the outer surface of one end of the rotating shaft 5, the other end of the guide rod 8 is connected to a fixed plate 2 and a compression spring 9 is provided between the guide rod 8 and the fixed plate 2, the front and rear ends of the fixed plate 2 are connected to supports 1 for supporting the overall structure, and the upper and lower ends of the fixed plate 2 are provided with movable connecting rods 13 for limiting the angles of the upper folding plate 3 and the lower folding plate 4.

[0021] A limit seat 10 is respectively arranged on the back of the upper folding plate 3 and the lower folding plate 4, and a slider 11 is arranged inside the limit seat 10. The slider 11 can slide inside the limit seat 10 and can also limit the angle of the slider 11. The angle can be adaptively adjusted according to the force generated by the impact of the upper folding plate 3 and the lower folding plate 4.

[0022] The slider 11 is slidably matched with the limit seat 10, and a buffer spring 12 is arranged between the slider 11 and the limit seat 10. The slider 11 can slide along the inner wall of the limit seat 10 under the linkage of the moving connecting rod 13, and buffer the buffer spring 12, so as to release the impact force.

[0023] The movable connecting rod 13 is rotatably matched with the fixed plate 2 and the slider 11 respectively. The movable connecting rod 13 serves as a balance piece for the fixed plate 2 and the slider 11, and can allow the upper folding plate 3 and the lower folding plate 4 to adjust the angle between the rotating shaft 5 and the fixed plate 2.

[0024] A buffer pad 6 is provided at the front end of the rotating shaft 5 . The buffer pad 6 serves as a preliminary contact piece, which can reduce damage caused by a rigid collision and can also protect the rotating shaft 5 .

[0025] A guide cylinder 7 for limiting the guide rod 8 is provided at the rear end of the fixing plate 2. The guide cylinder 7 can limit and guide the guide rod 8, and can play a role in sealing and dustproofing, thereby ensuring the sensitivity of the guide rod 8.

[0026] Working principle: First, the protruding position of the buffer pad 6 passes over the vertical line of the outer surface of one end of the upper folding plate 3 and the lower folding plate 4. The buffer pad 6, as the initial contact piece, can play a driving and buffering effect. The rotating shaft 5 slides inside the guide cylinder 7 through the guide rod 8 and squeezes the compression spring 9 to form a primary buffer protection. At the same time, the horizontal displacement of the rotating shaft 5 will link the angles of the upper folding plate 3 and the lower folding plate 4 to change. On the one hand, the lower folding plate 4 can convert the lateral impact force into the longitudinal clamping force, increase the force area and increase the buffer point. On the other hand, by adaptively changing the angle of the moving connecting rod 13 and the fixed plate 2 and the slider 11, the slider 11 squeezes the buffer spring 12 inside the limit seat 10 to form a secondary buffer protection, which can not only reduce the impact force generated by the vehicle and improve the protection of the vehicle, but also provide certain protection for the guardrail. In addition, the double buffering can avoid accidental triggering of external force. A certain impact force is required for the upper folding plate 3 and the lower folding plate 4 to deform, thereby increasing the practicality of the overall structure.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable road guardrail, comprising an upper folding plate (3) and a lower folding plate (4), characterized in that: A rotating shaft (5) is provided at the connecting end of the upper folding plate (3) and the lower folding plate (4), and the upper folding plate (3) and the lower folding plate (4) are rotatably matched via the rotating shaft (5); a guide rod (8) for supporting the upper folding plate (3) and the lower folding plate (4) is provided on the outer surface of one end of the rotating shaft (5); the other end of the guide rod (8) is connected to a fixed plate (2) and a compression spring (9) is provided between the guide rod (8) and the fixed plate (2); the front and rear ends of the fixed plate (2) are connected to supports (1) for supporting the overall structure; and the upper and lower ends of the fixed plate (2) are provided with movable connecting rods (13) for limiting the angles of the upper folding plate (3) and the lower folding plate (4).

2. A foldable road guardrail according to claim 1, characterized in that: A limit seat (10) is provided on the back of the upper folding plate (3) and the lower folding plate (4), respectively, and a slider (11) is provided inside the limit seat (10).

3. A foldable road guardrail according to claim 2, characterized in that: The slider (11) is in sliding engagement with the limiting seat (10), and a buffer spring (12) is provided between the slider (11) and the limiting seat (10). The slider (11) is in sliding engagement with the limiting seat (10), and a buffer spring (12) is provided between the slider (11) and the limiting seat (10).

4. A foldable road guardrail according to claim 1, characterized in that: The movable connecting rod (13) is rotationally matched with the fixed plate (2) and the sliding block (11) respectively.

5. The foldable road guardrail according to claim 1, characterized in that: A buffer pad (6) is provided at the front end of the rotating shaft (5).

6. A foldable road guardrail according to claim 1, characterized in that: A guide cylinder (7) for limiting the guide rod (8) is provided at the rear end of the fixing plate (2).

Images