An energy-absorbing anti-collision mechanism and a highway guardrail

Abstract

The present invention relates to the technical field of highway guardrails, and specifically relates to an energy-absorbing anti-collision mechanism and a highway guardrail, including: a protection plate disposed on one side of the guardrail, and a rubber strip is provided on the outer surface of the protection plate; a connection block disposed between the guardrail and the protection plate, and a slider is provided inside the connection block; a first storage roller disposed at the end of the guardrail, and a steel wire rope is provided on the surface of the first storage roller; The beneficial effects are as follows: the rubber strip and the adhesive layer can effectively reduce the impact force. During the collision, the slider will compress the return spring. At the same time, the side wall of the slider rubs against the damping pad, and the first ball and the second ball rub against each other, all of which can reduce the impact force. When the guardrail is impacted, the guardrail will tilt to one side, the steel wire rope will be stretched, the steel wire rope drives the first storage roller to rotate, the first storage roller drives the second storage roller to rotate, and the second storage roller stretches the tension spring through the connection rope during rotation. Due to its own elasticity, the tension spring reversely eliminates the impact force.

Description

Technical Field

[0001] The present invention relates to the technical field of highway guardrails, and specifically relates to an energy-absorbing anti-collision mechanism and a highway guardrail. Background Art

[0002] Highway anti-collision guardrails are the most important traffic infrastructure and important maintenance and safety guarantee facilities for highways;

[0003] For existing anti-collision guardrails, during the collision process, only frictional force is relied on to absorb the collision kinetic energy, and the damping time is too short. Due to poor energy absorption and deceleration effects, they do not provide due protection for the safety of the vehicle and the people inside, and still cause injuries to the vehicle and personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy-absorbing anti-collision mechanism and a highway guardrail to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An energy-absorbing anti-collision mechanism, the energy-absorbing anti-collision mechanism includes:

[0006] A protection plate, the protection plate is arranged on one side of the guardrail, and a rubber strip is arranged on the outer surface of the protection plate;

[0007] A connecting block, the connecting block is arranged between the guardrail and the protection plate, a slider is arranged inside the connecting block, and a damping pad is arranged on the contact surface between the slider and the connecting block;

[0008] A first storage roller, the first storage roller is arranged at the end of the guardrail, a steel wire rope is arranged on the surface of the first storage roller, and two groups of guardrails are connected by the steel wire rope.

[0009] Preferably, support rods are fixedly arranged at both ends of the guardrail, the size of the support rods matches the size of the ends of the guardrail, the cross-section of the support rods is in a "C" shape, and fixed seats are fixedly arranged on the lower end surfaces of the two groups of support rods. The guardrail stands through the cooperation of the fixed seats and the support rods.

[0010] Preferably, connecting blocks are fixedly arranged on the side wall of the guardrail, there are multiple groups of connecting blocks, the multiple groups of connecting blocks are evenly and symmetrically distributed, and a second sunk groove is opened at the center position of the end of each group of connecting blocks away from the guardrail. The cross-section of the sunk groove is in a "T" shape, and a slider is slidably arranged inside the second sunk groove. The size of the slider matches the internal size of the second sunk groove, and the ends of two adjacent sliders are connected to a group of protection plates.

[0011] Preferably, the protection plate is connected to the guardrail through the cooperation of two groups of connecting blocks and two groups of sliders, and a reset spring is arranged inside the sunken groove. The reset spring is fixedly arranged between the side wall of the slider and the inner wall of the sunken groove. There are multiple groups of reset springs, and the multiple groups of reset springs are evenly and symmetrically distributed. The protection plate is elastically connected to the connecting block through the multiple groups of reset springs.

[0012] Preferably, damping pads are fixedly arranged on both side walls inside the second sunken groove. The size of the damping pad matches the size inside the second sunken groove, and the side wall of the damping pad away from the second sunken groove is in contact with the side wall of the slider. And on both side walls at the port of the second sunken groove, multiple groups of first clamping balls are fixedly arranged. The multiple groups of first clamping balls are evenly and symmetrically distributed. The first clamping balls cooperate with the second clamping balls. The second clamping balls are arranged on the side wall of the slider, and there are multiple groups of second clamping balls, and the multiple groups of second clamping balls are evenly and symmetrically distributed.

[0013] Preferably, the protection plate is of an arc-shaped structure. A rubber strip is fixedly arranged on the end face of the protection plate away from the slider. There are multiple groups of rubber strips, and the multiple groups of rubber strips are evenly and symmetrically distributed. And a first sunken groove is opened at the central position inside the protection plate. An adhesive layer is arranged inside the first sunken groove, and the size of the adhesive layer matches the size inside the first sunken groove.

[0014] Preferably, a support rod is inserted with a support bar. The size of the support bar matches the size inside the support rod. And there are multiple groups of support bars, and the multiple groups of support bars are evenly and symmetrically distributed. And a first storage roller is rotatably sleeved on the outer surface of each group of support bars. The size of the first storage roller matches the size of the support bar. And a steel wire rope is wound inside the first storage roller. The other end of the steel wire rope is wound inside the first storage roller arranged at the end of the other guardrail.

[0015] Preferably, the two guardrails are connected through two groups of first storage rollers and a steel wire rope. And a second storage roller is fixedly arranged at one end of the first storage roller. The second storage roller is rotatably sleeved on the outer surface of the support bar. And a connecting rope is wound inside the second storage roller. One end of the connecting rope away from the second storage roller is connected to a tension spring.

[0016] Preferably, the end of the tension spring away from the connecting rope is fixedly connected to the upper surface of the fixing plate. The fixing plate is fixedly arranged on the inner side wall of the support rod. Through the cooperation of the tension spring and the connecting rope, the steel wire rope wound on the outer surfaces of the two groups of first storage rollers is in a tense state.

[0017] A highway guardrail includes the energy-absorbing anti-collision mechanism described above.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The energy-absorbing anti-collision mechanism and highway guardrail proposed by the present invention can effectively reduce the impact force by setting rubber strips on the outer surface of the protection plate and an adhesive layer inside the protection plate. During the collision process, the slider will compress the return spring. At the same time, the friction damping pad on the side wall of the slider and the mutual friction between the first ball and the second ball can both reduce the impact force. When the guardrail is impacted, the guardrail will tilt to one side. During the tilting, the steel wire rope will be stretched, the steel wire rope will drive the first storage roller to rotate, the first storage roller will drive the second storage roller to rotate, and during the rotation of the second storage roller, the tension spring will be stretched through the connecting rope. Due to its own elastic force, the tension spring will counteract the impact force in the reverse direction. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a schematic structural diagram of the protection plate of the present invention;

[0022] Figure 3 is a top view of the guardrail structure of the present invention;

[0023] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0024] Figure 5 is a schematic structural diagram of the connecting block of the present invention;

[0025] Figure 6 is a schematic diagram of the connection between the protection plate and the slider of the present invention;

[0026] Figure 7 is Figure 3 an enlarged schematic diagram of the structure at B in

[0027] Figure 8 is a cross-sectional view of the connection between two groups of support rods of the present invention.

[0028] In the figure: guardrail 1, fixed seat 2, support rod 3, protection plate 4, rubber strip 5, first sink 6, adhesive layer 7, connecting block 8, second sink 9, slider 10, return spring 11, damping pad 12, first ball 13, second ball 14, support rod 15, first storage roller 16, steel wire rope 17, second storage roller 18, connecting rope 19, tension spring 20, fixed plate 21. Detailed Embodiment

[0029] In order to clearly and completely describe the objectives, technical solutions of the present invention, and make the advantages more clearly understood, the following further elaborates on the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] Please refer to Figures 1-8 , the present invention provides a technical solution: an energy-absorbing anti-collision mechanism, which includes:

[0032] A protection plate 4 is provided on one side of the guardrail 1, and a rubber strip 5 is provided on the outer surface of the protection plate 4; a connecting block 8 is provided between the guardrail 1 and the protection plate 4, a slider 10 is provided inside the connecting block 8, and a damping pad 12 is provided on the contact surface between the slider 10 and the connecting block 8; a first storage roller 16 is provided at the end of the guardrail 1, a steel wire rope 17 is provided on the surface of the first storage roller 16, and two groups of guardrails 1 are connected by the steel wire rope 17;

[0033] The impact force is absorbed by the protection plate 4. During the absorption process of the protection plate 4, the slider 10 slides inside the connecting block 8. During the sliding process, the friction damping pad 12 reduces the impact force through the damping pad 12, and two groups of guardrails 1 are connected by two groups of first storage rollers 16 and steel wire ropes 17. When one group of guardrails 1 is impacted, the guardrail 1 will pull the steel wire rope 17, and drive the first storage roller 16 to rotate through the steel wire rope 17.

[0034] Embodiment 2

[0035] On the basis of Embodiment 1, in order to realize the connection between the protection plate 4 and the guardrail 1, support rods 3 are fixedly arranged at both ends of the guardrail 1. The size of the support rod 3 matches the size of the end of the guardrail 1. The cross-section of the support rod 3 is in a "C" shape structure. Fixed seats 2 are fixedly arranged on the lower end surfaces of the two groups of support rods 3. The guardrail 1 stands through the cooperation of the fixed seat 2 and the support rod 3. A connecting block 8 is fixedly arranged on the side wall of the guardrail 1. There are multiple groups of connecting blocks 8, and the multiple groups of connecting blocks 8 are evenly and symmetrically distributed. A second sunk groove 9 is provided at the center of the end of each group of connecting blocks 8 away from the guardrail 1. The cross-section of the second sunk groove 9 is in a "T" shape structure. A slider 10 is slidably arranged inside the second sunk groove 9. The size of the slider 10 matches the internal size of the second sunk groove 9. The ends of two adjacent sliders 10 are connected to a protection plate 4. The protection plate 4 is connected to the guardrail 1 through the cooperation of two connecting blocks 8 and two sliders 10. A return spring 11 is arranged inside the second sunk groove 9. The return spring 11 is fixedly arranged between the side wall of the slider 10 and the inner wall of the second sunk groove 9. There are multiple groups of return springs 11, and the multiple groups of return springs 11 are evenly and symmetrically distributed. The protection plate 4 is elastically connected to the connecting block 8 through multiple groups of return springs 11.

[0036] Embodiment 3

[0037] On the basis of Embodiment 2, in order to realize the anti-collision and energy absorption of the protection plate 4, damping pads 12 are fixedly arranged on both side walls inside the second sunk groove 9. The size of the damping pad 12 matches the internal size of the second sunk groove 9. The side wall of the damping pad 12 away from the second sunk groove 9 is in contact with the side wall of the slider 10. First clamping balls 13 are fixedly arranged on both side walls at the port of the second sunk groove 9. There are multiple groups of first clamping balls 13, and the multiple groups of first clamping balls 13 are evenly and symmetrically distributed. The first clamping balls 13 cooperate with the second clamping balls 14. The second clamping balls 14 are arranged on the side wall of the slider 10. There are multiple groups of second clamping balls 14, and the multiple groups of second clamping balls 14 are evenly and symmetrically distributed. The protection plate 4 is in an arc shape structure. Rubber strips 5 are fixedly arranged on the end surface of the protection plate 4 away from the slider 10. There are multiple groups of rubber strips 5, and the multiple groups of rubber strips 5 are evenly and symmetrically distributed. A first sunk groove 6 is provided at the center inside the protection plate 4. An adhesive layer 7 is arranged inside the first sunk groove 6. The size of the adhesive layer 7 matches the internal size of the first sunk groove 6.

[0038] Embodiment 4

[0039] On the basis of the first embodiment, in order to achieve anti-collision energy absorption between the two groups of guardrails 1, a support rod 15 is inserted into the interior of the support rod 3. The size of the support rod 15 matches the internal size of the support rod 3, and multiple groups of support rods 15 are provided. The multiple groups of support rods 15 are evenly and symmetrically distributed, and a first storage roller 16 is rotatably sleeved on the outer surface of each group of support rods 15. The size of the first storage roller 16 matches the size of the support rod 15, and a steel wire rope 17 is wound inside the first storage roller 16. The other end of the steel wire rope 17 is wound inside the first storage roller 16 provided at the end of the other group of guardrails 1. The two groups of guardrails 1 are connected by the two groups of first storage rollers 16 and the steel wire rope 17, and a second storage roller 18 is fixedly provided at one end of the first storage roller 16. The second storage roller 18 is rotatably sleeved on the outer surface of the support rod 15, and a connecting rope 19 is wound inside the second storage roller 18. One end of the connecting rope 19 away from the second storage roller 18 is connected to a tension spring 20. One end of the tension spring 20 away from the connecting rope 19 is fixedly connected to the upper surface of a fixing plate 21. The fixing plate 21 is fixedly provided on the inner side wall of the support rod 3. Through the cooperation of the tension spring 20 and the connecting rope 19, the steel wire rope 17 wound on the outer surfaces of the two groups of first storage rollers 16 is in a taut state.

[0040] During use, when the protection plate 4 is impacted, the rubber strip 5 provided on the surface of the protection plate 4 and the adhesive layer 7 provided inside the protection plate 4 will absorb the impact force, and at the same time, the slider 10 is squeezed inward. The slider 10 slides inside the connecting block 8. During the sliding process, the side wall of the slider 10 will rub against the damping pad 12, and the first ball 13 and the second ball 14 will rub against each other to resist the impact force. When the impact force cannot be resisted, the guardrail 1 will tilt. During the tilting process, the guardrail 1 pulls the steel wire rope 17 through the first storage roller 16. During the extension process of the steel wire rope 17, the first storage roller 16 is driven to rotate. The first storage roller 16 drives the second storage roller 18 to rotate. During the rotation of the second storage roller 18, the connecting rope 19 is wound up. The connecting rope 19 will pull the tension spring 20 upward again. Due to its own nature, the tension spring 20 will have a downward pulling force to pull the connecting rope 19, causing the second storage roller 18 to be unable to rotate and wind up, thereby offsetting or absorbing the impact force again.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-absorbing anti-collision mechanism, characterized in that: The energy absorbing and anti-collision mechanism comprises: A protective plate (4), the protective plate (4) being arranged on one side of the protective fence (1), and a rubber strip (5) being arranged on the outer surface of the protective plate (4); A connecting block (8), the connecting block (8) being arranged between the guardrail (1) and the guard plate (4), a sliding block (10) being arranged inside the connecting block (8), and a damping pad (12) being arranged on a contact surface between the sliding block (10) and the connecting block (8); A first receiving roller (16), the first receiving roller (16) being arranged at the end of the guardrail (1), a steel wire rope (17) being arranged on the surface of the first receiving roller (16), and the two groups of guardrails (1) being connected by the steel wire rope (17); A connecting block (8) is fixedly arranged on the side wall of the guardrail (1). The connecting blocks (8) are arranged in a plurality of groups. The plurality of connecting blocks (8) are evenly and symmetrically distributed. A second sink groove (9) is provided at the center of one end of each connecting block (8) away from the guardrail (1). The cross section of the second sink groove (9) is a "T"-shaped structure. A slider (10) is slidably arranged inside the second sink groove (9). The size of the slider (10) matches the size inside the second sink groove (9). The ends of two adjacent sliders (10) are connected to a group of guard plates (4). The guard plates (4) are connected to the guardrail (1) through the cooperation of the two connecting blocks (8) and the two sliders (10). A reset spring (11) is arranged inside the second sink groove (9). The reset spring (11) is fixedly arranged between the side wall of the slider (10) and the inner wall of the second sink groove (9). (11) multiple groups of reset springs (11) are arranged, and the multiple groups of reset springs (11) are evenly and symmetrically distributed. The protective plate (4) is elastically connected to the connecting block (8) through the multiple groups of reset springs (11); damping pads (12) are fixedly arranged on the inner side walls of the second sink groove (9), the size of the damping pads (12) matches the inner size of the second sink groove (9), and the side wall of the damping pad (12) away from the second sink groove (9) is in contact with the side wall of the slider (10), and first clamping balls (13) are fixedly arranged on the side walls of the port of the second sink groove (9), multiple groups of first clamping balls (13) are arranged, and the multiple groups of first clamping balls (13) are evenly and symmetrically distributed. The first clamping balls (13) cooperate with the second clamping balls (14), and the second clamping balls (14) are arranged on the side walls of the slider (10), and multiple groups of second clamping balls (14) are arranged, and the multiple groups of second clamping balls (14) are evenly and symmetrically distributed.

2. The energy-absorbing anti-collision mechanism according to claim 1, wherein: Support rods (3) are fixedly provided at both ends of the guardrail (1); the size of the support rods (3) matches the size of the ends of the guardrail (1); the cross section of the support rods (3) is a "匚"-shaped structure; and the lower end surfaces of the two groups of support rods (3) are fixedly provided with fixing seats (2); the guardrail (1) stands by the cooperation of the fixing seats (2) and the support rods (3).

3. The energy-absorbing anti-collision mechanism according to claim 1, characterized in that: The protective plate (4) has an arc-shaped structure. A rubber strip (5) is fixedly arranged on the end face of the protective plate (4) away from the slider (10). There are multiple groups of rubber strips (5), and the multiple groups of rubber strips (5) are evenly and symmetrically distributed. And a first sunk groove (6) is formed at the central position inside the protective plate (4), and an adhesive layer (7) is arranged inside the first sunk groove (6). The size of the adhesive layer (7) matches the internal size of the first sunk groove (6).

4. The energy-absorbing anti-collision mechanism according to claim 2, characterized in that: A support rod (15) is inserted into the support rod (3). The size of the support rod (15) matches the internal size of the support rod (3). And there are multiple groups of support rods (15), and the multiple groups of support rods (15) are evenly and symmetrically distributed. And a first storage roller (16) is rotatably sleeved on the outer surface of each group of support rods (15). The size of the first storage roller (16) matches the size of the support rod (15). And a steel wire rope (17) is wound inside the first storage roller (16). The other end of the steel wire rope (17) is wound inside the first storage roller (16) arranged at the end of another group of guardrails (1).

5. The energy-absorbing anti-collision mechanism according to claim 4, characterized in that: The two groups of guardrails (1) are connected by two groups of first storage rollers (16) and a steel wire rope (17). And a second storage roller (18) is fixedly arranged at one end of the first storage roller (16). The second storage roller (18) is rotatably sleeved on the outer surface of the support rod (15). And a connecting rope (19) is wound inside the second storage roller (18). One end of the connecting rope (19) away from the second storage roller (18) is connected to a tension spring (20).

6. The energy-absorbing anti-collision mechanism according to claim 5, characterized in that: One end of the tension spring (20) away from the connecting rope (19) is fixedly connected to the upper surface of a fixing plate (21). The fixing plate (21) is fixedly arranged on the inner side wall of the support rod (3). Through the cooperation of the tension spring (20) and the connecting rope (19), the steel wire rope (17) wound on the outer surfaces of the two groups of first storage rollers (16) is in a taut state.

7. A highway guardrail, characterized in that: Comprising the energy-absorbing and anti-collision mechanism according to any one of claims 1-6 above.

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