Protective fence on road subgrade

Abstract

The utility model belongs to the technical field of road safety facilities, and particularly relates to a protective fence on a road subgrade, which comprises two frame bodies and a support frame, two groups of anti-collision bodies are arranged on the support frame, and when the protective fence on the road is collided by a vehicle at a high speed, the anti-collision bodies firstly extrude a second annular sleeve on a damping ball, and then the anti-collision bodies are extruded by a second annular sleeve on the damping ball; in the extrusion process, the shock absorption balls on the impacted side get close to the outer walls of the connecting rods, so that the extrusion blocks make contact with the connecting rods, due to the fact that impact force is relieved in the extrusion process, and due to the fact that the buffer pieces are further installed between the two frame bodies, when the protective fence is impacted, the shock absorption balls on the impacted side get close to the outer walls of the connecting rods through the springs, the shock absorption blocks make contact with the connecting rods. When the contact plate moves towards the side plate, the clamping strip is in contact with the limiting strip at the moment, and the buffering effect is achieved; compared with the prior art, the buffering force is increased when the automobile bumper is impacted by an automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of road safety facilities, and more specifically, to a guardrail on a roadbed. Background Art

[0002] With the acceleration of urbanization, the construction of infrastructure such as roads, bridges, and construction sites has increased dramatically, and the safety protection issues in these areas have become increasingly important. Safety guardrails are important facilities to ensure the safety of personnel and prevent accidents.

[0003] For example, the anti-collision guard plate structure disclosed in application publication number CN105484185A includes an inner plate and an outer plate, a buffer structure is fixed between the inner plate and the outer plate, the buffer structure includes two elastic plates connected in an interlaced manner, the elastic plate is an arch-shaped structure, the two ends of the elastic plate are fixed to the inner plate, the arched middle part of the elastic plate is fixed to a fixed block, the fixed block is fixed to the outer plate, a spring is installed between the fixed block and the inner plate, and a support plate is installed between the inner plate and the outer plate.

[0004] In the above, buffering is achieved by connecting elastic plates staggered between the double-layer side panels. This structure is relatively simple. When the road guardrail faces a high-speed vehicle collision, the elastic plates are difficult to effectively absorb the impact force, resulting in the guardrail being easily broken or deformed under high-speed collisions, and being unable to effectively protect the safety of pedestrians and vehicles, causing the vehicle to run off the road. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present utility model is to provide a guardrail on the roadbed that increases the buffering force when hit by a vehicle.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A guardrail on a roadbed comprises two frames and a support frame, wherein the support frame is placed between the two frames, and the two sides of the support frame are fixedly connected to the two frames respectively. The support frame is provided with an anti-collision body, and the anti-collision body has two groups. The two groups of anti-collision bodies are longitudinally distributed on the support frame, and the anti-collision body comprises a connecting rod and a plurality of laterally distributed shock-absorbing balls. Both ends of the connecting rod are connected to the support frame, and the shock-absorbing ball is sleeved on the connecting rod. The shock-absorbing ball is provided with a plurality of extrusion blocks, and the extrusion blocks surround the inner wall of the shock-absorbing ball. One side of the extrusion block is fixedly connected to the inner wall of the shock-absorbing ball, and the other side is movably connected to the outer wall of the connecting rod. The outer wall of the shock-absorbing ball is provided with an anti-collision protrusion.

[0008] The utility model is further configured as follows: the shock-absorbing ball includes a first annular sleeve, a second annular sleeve and a third annular sleeve, the second annular sleeve is placed between the first annular sleeve and the third annular sleeve, and both are connected to the first annular sleeve and the third annular sleeve, and the diameter of the second annular sleeve is larger than the diameter of the first annular sleeve and the third annular sleeve.

[0009] The utility model is further configured as follows: a buffer is provided between the two frames, and the buffer is placed between the two groups of anti-collision bodies.

[0010] The utility model is further configured as follows: the buffer component includes a contact plate, a spring and a side plate, and two ends of the spring are respectively connected to the contact plate and the side plate.

[0011] The utility model is further configured as follows: a clamping strip is provided on the contact plate, and a limiting strip connected to the clamping strip is provided on the side plate, and both the clamping strip and the limiting strip are made of silicone.

[0012] The utility model is further configured as follows: the shock-absorbing ball is made of silica gel.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are:

[0014] When the guardrail on the road faces a high-speed collision with a vehicle, it is first squeezed by the second annular sleeve on the shock-absorbing ball, and then squeezed by the first annular sleeve and the third annular sleeve. During the squeezing process, the shock-absorbing ball on the impacted side moves closer to the outer wall of the connecting rod, so that the extrusion block contacts the connecting rod, thereby increasing the buffering force when hit by the vehicle. Due to the squeezing process, the impact force is reduced. Since a buffer part is also installed between the two frames, when the guardrail is hit, the contact plate moves toward the side plate through the spring. At this time, the card bar contacts the limit bar, which plays a buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of an embodiment of the present utility model;

[0016] Figure 2 Schematic diagram of the structure of the practical anti-collision body;

[0017] Figure 3 This is a three-dimensional diagram of the practical buffer.

[0018] Frame 1, support frame 2, anti-collision body 3, connecting rod 4, shock-absorbing ball 5, extrusion block 6, buffer 7, contact plate 8, spring 9, side plate 10, clamping strip 11, limit strip 12, first annular sleeve 501, second annular sleeve 502, third annular sleeve 503. DETAILED DESCRIPTION

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

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] like Figures 1 to 3 As shown, the guardrail on the roadbed includes two frames 1 and a support frame 2. The support frame 2 is placed between the two frames 1. Both sides of the support frame 2 are fixedly connected to the two frames 1 respectively. The support frame 2 and the frame 1 are formed in one piece.

[0022] An anti-collision body 3 is provided on the support frame 2. The anti-collision body 3 has two groups. The two groups of anti-collision bodies 3 are longitudinally distributed on the support frame 2. The anti-collision body 3 includes a connecting rod 4 and eight laterally distributed shock-absorbing balls 5. Both ends of the connecting rod 4 are connected to the support frame 2. The shock-absorbing balls 5 are sleeved on the connecting rod 4. The shock-absorbing balls 5 are made of silicone, which has a better anti-collision effect.

[0023] The shock-absorbing ball 5 is provided with six extrusion blocks 6, which surround the inner wall of the shock-absorbing ball 5. One side of the extrusion block 6 is integrally formed with the inner wall of the shock-absorbing ball 5, and the other side is movably connected to the outer wall of the connecting rod 4. Anti-collision protrusions are installed on the outer wall of the shock-absorbing ball 5. The anti-collision protrusions increase the friction between the vehicle and the shock-absorbing ball 5.

[0024] The shock-absorbing ball 5 includes a first annular sleeve 501, a second annular sleeve 502 and a third annular sleeve 503. The second annular sleeve 502 is placed between the first annular sleeve 501 and the third annular sleeve 503, and is connected to the first annular sleeve 501 and the third annular sleeve 503. The diameter of the second annular sleeve 502 is larger than the diameter of the first annular sleeve 501 and the third annular sleeve 503, so that the vehicle first contacts the second annular sleeve 502, and then contacts the first annular sleeve 501 and the third annular sleeve 503 respectively.

[0025] A buffer member 7 is also provided between the two frames 1. The buffer member 7 is placed between the two groups of anti-collision bodies 3. The buffer member 7 includes a contact plate 8, a spring 9 and a side plate 10. The two ends of the spring 9 are respectively in contact with the contact plate 8 and the side plate 10. A clamping strip 11 is provided on the contact plate 8, and a limiting strip 12 connected to the clamping strip 11 is provided on the side plate 10. Both the clamping strip 11 and the limiting strip 12 are made of silicone for better buffering.

[0026] Working principle: When the guardrail on the road faces a high-speed collision with a vehicle, it is first squeezed by the second annular sleeve 502 on the shock-absorbing ball 5, and then squeezed by the first annular sleeve 501 and the third annular sleeve 503. During the extrusion process, the shock-absorbing ball 5 on the impacted side is close to the outer wall of the connecting rod 4, so that the extrusion block 6 is in contact with the connecting rod 4. Due to the extrusion process, the impact force is reduced, and the buffering force is increased when hit by the vehicle. Since a buffer part 7 is also installed between the two frames 1, when the guardrail is hit, the contact plate 8 moves toward the side plate 10 through the spring 9. At this time, the card bar 11 is in contact with the limit bar 12, which plays a buffering role.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A guardrail on a roadbed, characterized in that: It comprises two frames (1) and a support frame (2), wherein the support frame (2) is placed between the two frames (1), and both sides of the support frame (2) are fixedly connected to the two frames (1). The support frame (2) is provided with an anti-collision body (3), and the anti-collision body (3) has two groups. The two groups of anti-collision bodies (3) are longitudinally distributed on the support frame (2). The anti-collision body (3) includes a connecting rod (4) and a plurality of laterally distributed shock-absorbing balls (5). Both ends of the connecting rod (4) are connected to the support frame (2), and the shock-absorbing ball (5) is sleeved on the connecting rod (4). The shock-absorbing ball (5) is provided with a plurality of extrusion blocks (6), which surround the inner wall of the shock-absorbing ball (5). One side of the extrusion block (6) is fixedly connected to the inner wall of the shock-absorbing ball (5), and the other side is movably connected to the outer wall of the connecting rod (4). An anti-collision protrusion is provided on the outer wall of the shock-absorbing ball (5).

2. The guardrail on the roadbed according to claim 1, characterized in that: The shock-absorbing ball (5) comprises a first annular sleeve (501), a second annular sleeve (502) and a third annular sleeve (503); the second annular sleeve (502) is placed between the first annular sleeve (501) and the third annular sleeve (503), and is connected to the first annular sleeve (501) and the third annular sleeve (503); the diameter of the second annular sleeve (502) is larger than the diameters of the first annular sleeve (501) and the third annular sleeve (503).

3. The guardrail on the roadbed according to claim 1, characterized in that: A buffer member (7) is further provided between the two frames (1), and the buffer member (7) is placed between the two groups of anti-collision bodies (3).

4. The guardrail on the roadbed according to claim 3, characterized in that: The buffer member (7) comprises a contact plate (8), a spring (9) and a side plate (10), and two ends of the spring (9) are respectively connected to the contact plate (8) and the side plate (10).

5. The guardrail on the roadbed according to claim 4, characterized in that: The contact plate (8) is provided with a clamping strip (11), and the side plate (10) is provided with a limiting strip (12) connected to the clamping strip (11), and both the clamping strip (11) and the limiting strip (12) are made of silicone.

6. The guardrail on the roadbed according to claim 1, characterized in that: The shock-absorbing ball (5) is made of silica gel.

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