Anti-collision guardrail of road
By designing the connection structure of the buffer roller and the baffle, the problem that the existing guardrail cannot unload force when the car hits, the effective buffering and direction correction of the car under bias collision is achieved, and safety and stability are improved.
Patent Information
- Application Number
- CN202422296790.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing anti-collision guardrails cannot effectively unload the force when the car hits, especially when the impact angle is relatively harsh, the vertical rollers cannot effectively change the direction of the car, resulting in frequent car damage and death.
An anti-collision assembly including a buffer roller and a baffle is designed. The buffer roller is connected to the baffle through a slot and a clamping projection. The baffle can bear the impact force of the car and drive the buffer roller to rotate. Multiple buffer rollers rotate at the same time to change the direction of the car and enhance the buffer effect through the baffle made of rubber-metal composite material.
When the vehicle is biased and collided, the kinetic energy of the car can be effectively dispersed and converted by the combination of the baffle and the buffer roller, changing its travel direction, improving the safety and stability during impact, and preventing the baffle from leaving the buffer roller.
Smart Images
Figure CN223255912U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of traffic roads, and more specifically relates to an anti-collision guardrail for a highway. Background Art
[0002] With the continuous development of economic construction, transportation is becoming increasingly busy. Traffic accidents are currently the most frequent on highways or highway bridges. In order to reduce the occurrence of traffic accidents, various guardrails are installed on both sides of the highway. Since the guardrail poles are made of iron and have no elasticity, rigid guardrails have strong protective capabilities. However, when a car collides with the guardrail, under the action of the instantaneous impact load, the guardrail basically does not move or deform. The energy absorption during the collision relies on the plastic deformation of the car itself, the friction contact between the car and the guardrail, and the car's climbing along the guardrail and the change in the car's driving direction. The impact damage to the accident vehicle and occupants, especially on some small-radius curves, often causes the disintegration of large vehicles and loss of control, or serious injuries or even death.
[0003] To address the above-mentioned problems, some vertical rollers have been added to the existing guardrails. When a car collides with the guardrail, the vertical rollers can convert the sliding friction between the car and the existing guardrail into rolling friction, and then use the rotation of the vertical rollers to change the direction of travel of the car, and correct the car from the trajectory of hitting the guardrail. However, from a cost perspective, the setting density of the existing vertical rollers is insufficient. When the collision angle between the car and the guardrail is relatively harsh, the collision direction of the car is directly opposite the axis of a few vertical rollers, resulting in a lack of power for the rotation of the vertical rollers. In this case, the role of the vertical rollers is equivalent to that of the columns in the traditional guardrail, and they cannot use their own rolling to guide the impact of the car, which is in urgent need of improvement. Utility Model Content
[0004] The purpose of the utility model is to provide a highway anti-collision guardrail to solve the technical problem that the existing anti-collision guardrail cannot unload the force of the collision of the car.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a highway anti-collision guardrail, comprising:
[0006] guardrail body;
[0007] The anti-collision component includes a buffer roller and a baffle. There are multiple buffer rollers, and the axis of each buffer roller is parallel to the up and down direction. The multiple buffer rollers are arranged on the guardrail body at intervals along the length direction of the guardrail body. The plate surface of the baffle is parallel to the axis of each buffer roller, and the side of the baffle facing the buffer roller is provided with multiple clamping protrusions, each of which is arranged at intervals along the length direction of the baffle. The outer periphery of the buffer roller is provided with multiple clamping grooves, each of which is evenly arranged around the axis of the buffer roller, and the clamping protrusions are clamped in the clamping grooves.
[0008] In one possible implementation, the baffles are connected end to end to form an elongated annular structure, the annular structure extends along the length direction of the guardrail body, and the annular structure is provided with a plurality of buffer rollers that are rollingly connected to the inner plate surface of the baffle.
[0009] In a possible implementation, the engaging protrusion is made of ferromagnetic metal, and a magnetic block that is magnetically adapted to the engaging protrusion is provided at the bottom of the engaging slot.
[0010] In a possible implementation, the baffle includes a rubber layer and a metal layer, the metal layer is a metal grid woven with steel wires, and the metal grid is embedded in the rubber layer.
[0011] In a possible implementation, a surface of the baffle facing away from the buffer roller is provided with an anti-slip protrusion.
[0012] In one possible implementation, the guardrail body includes two columns and two beams, the two columns are arranged opposite to each other, the two beams are arranged between the two columns, the two beams are spaced apart in the up and down directions, the two columns are respectively located on both sides of the length direction of the annular structure, and the two ends of the buffer roller are respectively rotatably connected to the two beams.
[0013] In a possible implementation, the anti-collision assembly further includes a first rotating shaft, the upper and lower ends of the first rotating shaft are respectively fixedly connected to the two beams, and the buffer roller is rotatably sleeved on the outer circumference of the first rotating shaft.
[0014] In one possible implementation, the guardrail body also includes a support plate and anchor bolts, the plate surface of the support plate is perpendicular to the vertical direction, the upper plate surface of the support plate is connected to the bottom end of the column, and there are multiple anchor bolts, and each anchor bolt is evenly spaced and arranged on the lower plate surface of the support plate.
[0015] In a possible implementation, a guide roller is provided on the outer periphery of the column, and the axis of the guide roller is parallel to the up-down direction.
[0016] In a possible implementation, the anti-collision guardrail of the highway further includes a waterproof cover provided on the top of the guardrail body, the waterproof cover being provided above the buffer roller and the baffle and being used to prevent rain and snow from eroding the buffer roller and the baffle.
[0017] Compared with the prior art, the beneficial effect of the anti-collision guardrail of the highway provided by the utility model is that: vehicles generally collide with the road guardrail in an offset collision manner. In this case, the utility model can directly bear the collision force of the car through the baffle, and disperse the kinetic potential energy of the car to multiple buffer rollers, so that the multiple buffer rollers can rotate at the same time, and then the entire baffle can move as a whole through the rotation of the buffer roller, so that the car is always subjected to the force unloading effect of the baffle during the collision with the impact guardrail, solving the technical problem that the vertical rollers of the existing cars cannot play a force unloading effect in more harsh collision environments; in addition to the above-mentioned beneficial effects, this embodiment can form a stable connection between the buffer roller and the baffle through the clamping between the clamping groove and the clamping protrusion, preventing the baffle from detaching from the buffer roller when hit. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0019] Figure 1 A schematic diagram of a highway anti-collision guardrail provided by the present utility model;
[0020] Figure 2 Schematic diagram of the connection between the middle baffle and the buffer roller;
[0021] Figure 3 This is a schematic diagram of the overall structure of the highway anti-collision guardrail of the utility model from another perspective.
[0022] In the picture:
[0023] 1. Guardrail body; 11. Upright column; 111. Guide roller; 12. Crossbeam; 13. Support plate; 14. Anchor bolt;
[0024] 2. Anti-collision assembly; 21. Buffer roller; 210. Card slot; 211. First rotating shaft; 22. Baffle; 220. Card protrusion; 221. Anti-slip protrusion;
[0025] 3. Waterproof cover. DETAILED DESCRIPTION
[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.
[0027] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", and "back" appear to indicate orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.
[0028] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a removable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0030] When a vehicle hits a road guardrail, only a few buffer rollers of the existing anti-collision guardrail are in contact with it and reduce the impact force and impact direction of the vehicle. However, when the impact angle of the vehicle is large, the vertical roller that first hits it collapses, and the remaining vertical rollers in the direction of travel are equivalent to being set directly in front of the vehicle. This collision condition is essentially no different from the existing collision condition without buffer rollers. It cannot reduce the impact force of the vehicle and change the impact direction of the vehicle, which can easily lead to vehicle destruction and death. In this regard, the utility model proposes a new solution. Generally speaking, the utility model buffers the impact of the vehicle by arranging a baffle rotatably connected to each buffer roller, and rotates each buffer roller simultaneously through the transmission of the baffle, so that after the buffer roller currently impacted collapses, the vehicle can use the sliding of the baffle to change the collision direction of the vehicle through the rotation of subsequent buffer rollers.
[0031] Based on the above overall design concept, a more specific implementation method is proposed. Specifically, in this implementation method of the present utility model, Figures 1 to 3As shown, the anti-collision guardrail of the highway includes a guardrail body 1 and an anti-collision component 2, wherein the anti-collision component 2 includes a buffer roller 21 and a baffle 22, the number of the buffer rollers 21 is a plurality arranged side by side, and the axis of each buffer roller 21 is parallel to the up and down direction, and each buffer roller 21 is arranged at intervals on the guardrail body 1 along the length direction of the guardrail body 1, the plate surface of the baffle 22 is parallel to the axis of each buffer roller 21, and the side of the baffle 22 facing the guardrail body 1 is provided with a plurality of snap-in protrusions 220, and each snap-in protrusion 220 is arranged at intervals along the length direction of the baffle 22, and the outer periphery of the buffer roller 21 is provided with a plurality of snap-in grooves 210, and each snap-in groove 210 is evenly arranged around the axis of the buffer roller 21, and the snap-in protrusion 220 is snapped into the snap-in groove 210.
[0032] Compared with the prior art, in this embodiment, when a vehicle collides with a road guardrail in an offset collision, this embodiment can directly bear the collision force of the car through the baffle 22, and disperse the kinetic potential energy of the car to multiple buffer rollers 21, so that the multiple buffer rollers 21 can rotate simultaneously, and then the entire baffle 22 can move as a whole through the rotation of the buffer roller 21, so that the car is always subjected to the force unloading effect of the baffle 22 during the collision with the guardrail, solving the technical problem that the vertical rollers of existing cars cannot play a force unloading effect in more harsh collision environments; in addition to the above-mentioned beneficial effects, this embodiment can form a stable connection between the buffer roller 21 and the baffle 22 through the clamping between the clamping groove 210 and the clamping protrusion 220, preventing the baffle 22 from detaching from the buffer roller 21 when hit.
[0033] Based on the above embodiment, in order to prevent the baffle 22 from falling off the buffer roller 21, a feasible implementation method is proposed, in which the baffles 22 are connected end to end to form a long ring structure, and the ring structure extends along the length direction of the guardrail body 1. A plurality of buffer rollers 21 that are rollingly connected to the inner plate surface of the baffle 22 are provided in the ring structure, so that the annular baffle 22 is used to surround the outer periphery of each buffer roller 21 to prevent the baffle 22 from falling off the buffer roller 21 due to external interference such as wind. Not only that, the annular baffle 22 can increase the contact area with the outer peripheral surface of the buffer roller 21, thereby forming more connections between the card groove 210 and the card protrusion 220, so that the connection between the baffle 22 and the buffer roller 21 is more stable.
[0034] Based on the above embodiment, further, the material of the snap-fitting protrusion 220 is ferromagnetic metal, and the bottom of the slot 210 is provided with a magnetic block that is magnetically adapted to the snap-fitting protrusion 220, so that a stable connection between the snap-fitting protrusion 220 and the magnetic block is formed through the magnetic adaptation of the snap-fitting protrusion 220 and the magnetic block, thereby preventing the snap-fitting protrusion 220 from falling out of the slot 210.
[0035] Considering the high impact of automobiles, in order to enhance the ability of the highway anti-collision guardrail of the present invention to stop automobiles, a feasible implementation method is proposed. Specifically, the baffle 22 includes a rubber layer and a metal layer. The metal layer is a metal mesh woven with steel wires. The metal mesh is embedded in the rubber layer to enhance the overall strength of the anti-collision guardrail through the rubber layer of the front metal wire. The high friction coefficient of the rubber layer is used to enhance the ability of the baffle 22 to convert the impact of the automobile into the rotational potential energy of the buffer roller 21, thereby enhancing the ability of the present invention to correct the direction of automobile collision. Preferably, based on the above embodiment, in order to increase the friction coefficient of the rubber layer surface, the side of the baffle 22 facing the highway is provided with anti-slip protrusions 221 that increase the surface roughness, so as to prevent more uncontrollable sliding friction between the automobile and the baffle 22, thereby facilitating the buffering and deviation correction capabilities of the highway anti-collision guardrail of the present invention for automobiles.
[0036] In one feasible embodiment, the guardrail body 1 includes two upright posts 11 and two crossbeams 12. The two upright posts 11 are arranged opposite each other and located on either side of the length of the annular structure. The two crossbeams 12 are disposed between the upright posts 11 and are spaced apart vertically. The ends of the buffer roller 21 are rotatably connected to the two crossbeams 12. This arrangement allows the buffer roller 21 to be mounted on the guardrail body 1 via the two crossbeams 12, making installation of the anti-collision assembly 2 and the guardrail body 1 more convenient.
[0037] In a feasible embodiment, the anti-collision component 2 also includes a first rotating shaft 211, the upper and lower ends of the first rotating shaft 211 are respectively fixedly connected to the two cross beams 12, and the buffer roller 21 is rotatably sleeved on the outer periphery of the first rotating shaft 211, so that the buffer roller 21 can be connected to the cross beam 12 through the first rotating shaft 211, making the connection between the buffer roller 21 and the cross beam 12 more reasonable.
[0038] Based on the above embodiment, in order to facilitate the fixing of the guardrail body 1 to one side of the road, the guardrail body 1 also includes a support plate 13 and anchor bolts 14. The plate surface of the support plate 13 is perpendicular to the vertical direction, and the upper plate surface of the support plate 13 is connected to the bottom end of the column 11. There are multiple anchor bolts 14, and each anchor bolt 14 is evenly spaced on the lower plate surface of the support plate 13. Therefore, the utility model can make the guardrail body 1 more securely installed on both sides of the road through the anchor bolts 14 and support plates 13 buried in the concrete foundation, thereby preventing the anti-collision guardrail of the highway in the utility model from tipping over when it is hit.
[0039] Considering that a car may also collide with the pillar 11, in order to prevent the pillar 11 from being damaged due to the collision, in one possible embodiment, a guide roller 111 is provided on the outer periphery of the pillar 11, and the axis of the guide roller 111 is parallel to the up and down direction, so that the guide roller 111 on the pillar 11 can also play a corrective role in the collision of the car.
[0040] In addition to the above-mentioned feasible implementation methods, considering that the outdoor weather conditions are relatively severe, in order to prevent external rain and snow from eroding the anti-collision component 2, a feasible implementation method is proposed. Specifically, the anti-collision guardrail of the highway also includes a waterproof cover 3 provided on the top of the guardrail body 1. The waterproof cover 3 is provided above the buffer roller 21 and the baffle 22, and is used to prevent rain and snow from eroding the buffer roller 21 and the baffle 22. The waterproof cover 3 is used to prevent external rainwater from falling between the buffer roller 21 and the baffle 22, so that the snap-fitting between the snap-fitting protrusion 220 and the snap-fitting slot 210 is more comfortable. In addition, this embodiment can also enhance the overall structural strength of the anti-collision guardrail of the highway in the utility model through the waterproof cover 3, and enhance the impact resistance of the utility model to the car.
[0041] In summary, compared with the existing technology, the present invention can absorb the collision of the vehicle through the baffle 22, and can drive the buffer roller 21 to rotate through the rotational engagement between the baffle 22 and the buffer roller 21, and then use the rotation of the buffer roller 21 to correct the impact direction of the vehicle, thereby solving the technical problem that the existing buffer roller 21 cannot reduce and correct the impact of the vehicle due to the large impact angle of the existing vehicle; not only that, the present embodiment can also buffer the impact of the vehicle through the baffle 22 made of rubber-metal wire composite material, and use the high roughness of the rubber surface to convert the collision potential energy of the car into the rotational potential energy of the annular baffle 22 and the buffer roller 21, so as to ensure the buffering and correction effect of the present invention on the collision of the car.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A highway anti-collision guardrail, characterized in that: include: guardrail body; The anti-collision component includes a buffer roller and a baffle. There are multiple buffer rollers, and the axis of each buffer roller is parallel to the up and down direction. The multiple buffer rollers are arranged on the guardrail body at intervals along the length direction of the guardrail body. The plate surface of the baffle is parallel to the axis of each buffer roller, and the side of the baffle facing the buffer roller is provided with multiple clamping protrusions, each of which is arranged at intervals along the length direction of the baffle. The outer periphery of the buffer roller is provided with multiple clamping grooves, each of which is evenly arranged around the axis of the buffer roller, and the clamping protrusions are clamped in the clamping grooves.
2. The highway anti-collision guardrail according to claim 1, characterized in that: The baffles are connected end to end to form a long ring structure, which extends along the length direction of the guardrail body. The ring structure is provided with a plurality of buffer rollers that are rollingly connected to the inner plate surface of the baffle.
3. The highway anti-collision guardrail according to claim 1, characterized in that: The material of the clamping protrusion is ferromagnetic metal, and the bottom of the clamping slot is provided with a magnetic block that is magnetically adapted to the clamping protrusion.
4. The highway anti-collision guardrail according to claim 1, characterized in that: The baffle comprises a rubber layer and a metal layer. The metal layer is a metal grid woven with steel wires, and the metal grid is embedded in the rubber layer.
5. The highway anti-collision guardrail according to claim 4, characterized in that: The side of the baffle facing away from the buffer roller is provided with an anti-slip protrusion.
6. The highway anti-collision guardrail according to claim 2, characterized in that: The guardrail body includes two columns and two beams. The two columns are arranged opposite to each other, and the two beams are arranged between the two columns. The two beams are spaced apart in the up and down directions. The two columns are respectively located on both sides of the length direction of the annular structure, and the two ends of the buffer roller are respectively rotatably connected to the two beams.
7. The highway anti-collision guardrail according to claim 6, characterized in that: The anti-collision component further includes a first rotating shaft, wherein the upper and lower ends of the first rotating shaft are fixedly connected to the two beams respectively, and the buffer roller is rotatably sleeved on the outer periphery of the first rotating shaft.
8. The highway anti-collision guardrail according to claim 6, characterized in that: The guardrail body also includes a support plate and anchor bolts. The surface of the support plate is perpendicular to the vertical direction. The upper surface of the support plate is connected to the bottom end of the column. There are multiple anchor bolts, and each anchor bolt is evenly spaced and arranged on the lower surface of the support plate.
9. The highway anti-collision guardrail according to claim 6, characterized in that: A guide roller is provided on the outer periphery of the column, and the axis of the guide roller is parallel to the up and down direction.
10. The highway anti-collision guardrail according to claim 1, characterized in that: The anti-collision guardrail of the highway further comprises a waterproof cover arranged on the top of the guardrail body, the waterproof cover is arranged above the buffer roller and the baffle, and is used to prevent rain and snow from eroding the buffer roller and the baffle.