Efficient buffering type anti-collision wave-shaped guardrail
By setting up two front and rear guardrails and multiple buffer structures in the anti-collision waveguard, double interception and multiple kinetic energy absorption are achieved, which solves the problem of poor buffering effect and fracture in local collisions, and significantly improves the guardrail Intercepting performance and protection effects.
Patent Information
- Application Number
- CN202421279079.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When existing anti-collision-proof wave guardrails cannot fully and effectively utilize the deformation buffer of the corrugated guardrails when local collisions, resulting in limited buffering effect. When the collision kinetic energy is too large, the guardrails are prone to partial fractures and lose the effect of intercepting vehicles.
A high-efficiency buffer type anti-collision waveguard is designed, and double interception and multiple kinetic energy absorption are achieved by setting up two front and rear guard plates and multiple buffer structures. The front guard plate is a corrugated plate, and the rear guard plate is made of long strip plates and bent in the middle to form a buffer bend, which combines the deformation of the unloading plate and the buffer bend to absorb the impact kinetic energy.
Through the multiple kinetic energy absorption of the front and rear guard plates, the interception performance of the guardrail is significantly improved, avoiding the guardrail breakage during the collision, ensuring that the vehicle does not rush out of the road, reducing the collision kinetic energy, and improving the protective performance of the guardrail.
Smart Images
Figure CN222513144U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of road traffic facilities, and in particular relates to a high-efficiency buffer-type anti-collision corrugated guardrail. Background Art
[0002] As a collision prevention safety measure for highways, road anti-collision guardrails are widely used in road construction in different situations. As a type of anti-collision guardrail, corrugated guardrails absorb collision energy through corrugated protective plates, force out-of-control vehicles to change direction, and prevent vehicles from running out of the road, protecting vehicles and passengers in the car, and reducing losses caused by accidents. The existing anti-collision corrugated guardrails are connected by installing corrugated protective plates through columns and bolts. When a vehicle collision occurs, the vehicle collision causes the curved part of the corrugated protective plate to stretch and deform, thereby achieving buffering and absorption of collision energy. However, when the corrugated guardrail is collided, in some cases, it only collides at one part of the corrugated protective plate. For a corrugated protective plate with a certain length, when a local collision occurs, the actual deformation of the corrugated protective plate is only the tensile deformation at the collision site. The actual part far from the collision site cannot fully and effectively utilize the deformation buffer of the corrugated protective plate, and the buffering effect is limited. When the collision kinetic energy is too large, the corrugated guardrail will have a violent local fracture at the collision site, lose the effect of intercepting vehicles, and thus cannot effectively prevent the accident vehicle from continuing to move forward. When it is located in a dangerous section, the overturned vehicle is prone to more serious injuries. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a high-efficiency buffer-type anti-collision corrugated guardrail, which performs double interception of vehicles by setting two front and rear guard plates, and improves the collision buffering effect by setting a buffer bend.
[0004] A highly efficient buffering anti-collision corrugated guardrail includes a column and a guard plate. The guard plate is installed on two columns through both ends to provide a collision buffering function. The guard plate consists of a front guard plate and a rear guard plate. The front guard plate and the rear guard plate are installed on both sides of the column respectively. The front guard plate is a corrugated plate. The front guard plate is installed on the side close to the road to provide a first collision buffering function. The rear guard plate is installed on the side away from the road to provide a second collision buffering function. The rear guard plate is made of a long strip of plate. The middle of the rear guard plate is bent outward to form a buffer bend. A force unloading plate is set at the mouth of the buffer bend. The two sides of the force unloading plate are connected to the rear guard plate, and a vertical groove is set in the middle of the force unloading plate. The rear guard plate absorbs the kinetic energy of the second collision through the fracture of the force unloading plate and the deformation of the buffer bend.
[0005] In order to improve the kinetic energy absorption effect of the buffer curve, the shape of the buffer curve is set to M shape.
[0006] In order to improve the kinetic energy absorption effect of the rear guard plate, two buffer bends are set on the rear guard plate.
[0007] In order to allow the kinetic energy of a vehicle collision to be transferred more quickly between the front guard plate and the rear guard plate, a buffer portion is arranged between the two buffer bends. The buffer portion is composed of a buffer plate and a buffer column. The buffer column is vertically connected to the rear guard plate, and the other end of the buffer column is connected to the buffer plate, so that the buffer plate and the buffer column are located between the front guard plate and the rear guard plate. The kinetic energy on the front guard plate can be transferred to the rear guard plate through the buffer portion.
[0008] In order to improve the structural strength of the buffer part, there are two buffer columns, which are connected to the rear guard plate in the vertical direction. The buffer plate is connected to the two buffer columns at the same time to avoid the interruption of kinetic energy transfer caused by the breakage of the buffer part during the kinetic energy transfer process.
[0009] In order to improve the kinetic energy transfer effect between the front guard plate and the rear guard plate, two buffer parts are provided between the two buffer bends.
[0010] The utility model provides a high-efficiency buffering anti-collision corrugated guardrail, which can effectively decompose and absorb the collision kinetic energy through the front guard plate and the rear guard plate when a vehicle collision occurs, thereby protecting the vehicle from running off the road. By setting up a multi-channel buffer structure, the collision kinetic energy is effectively reduced, and the interception performance of the guardrail can be greatly improved, thereby preventing the guardrail from breaking during a collision and losing the vehicle interception effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the rear guard plate structure;
[0014] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;
[0015] As shown in the figure: 1-column; 2-front guard plate; 3-rear guard plate; 4-buffer bend; 5-load plate; 6-groove; 7-buffer plate; 8-buffer column. DETAILED DESCRIPTION
[0016] To further illustrate the concept of the present invention, the following will further illustrate the specific implementation of the present invention in conjunction with the accompanying drawings:
[0017] A high-efficiency buffer-type anti-collision corrugated guardrail comprises a column 1 and a guard plate, wherein the guard plate comprises a front guard plate 2 and a rear guard plate 3. Figure 1As shown, the upright column 1 adopts the existing anti-collision guardrail column, and the front guard plate 2 is made of a corrugated plate. The rear guard plate 3 is made of a long metal strip. The required length of the long strip is calculated according to the predetermined length of the rear guard plate 3, and then the middle part of the rear guard plate 3 is bent to press out two M-shaped buffer bends 4. There is a gap in the middle of the two buffer bends 4, and the length of the gap is selected according to the needs. Then, according to the length of the mouth of the buffer bend 4, the metal plate is cut to form a force unloading plate 5, and a vertical groove 6 is opened in the middle part of the force unloading plate 5, and then the two ends of the force unloading plate 5 are fixed to the two ends of the mouth of the buffer bend 4 by welding. Take 2 steel columns and 1 steel plate, and weld the two steel columns vertically to the steel plate to form a buffer part. The steel column serves as a buffer column 8, and the steel plate serves as a buffer plate 7. Then, the buffer part is welded to the rear guard plate through the other end of the buffer column 8, and the two buffer parts are welded in the middle of the two buffer bends 4, as shown in FIG. Figure 2 , Figure 3 shown.
[0018] When installing the guardrail, install the posts 1 at intervals on the road according to the length of the guardrail. After the posts 1 are fixed, install and fix the two ends of the front guard plate 2 on the side of the posts facing the inside of the road, and then install and fix the two ends of the rear guard plate 3 on the side facing the outside of the road. During installation, ensure that the buffer part of the rear guard plate 3 is located between the front guard plate 2 and the rear guard plate 3, and ensure that the buffer plate 7 faces the front guard plate 2. Figure 1 shown.
[0019] When a vehicle collides with the guardrail, the vehicle first contacts the front guard plate 2, which is deformed under the impact of the vehicle and absorbs the first collision kinetic energy. After the front guard plate 2 is deformed to a certain extent, it contacts the buffer plate 7, and the buffer plate 7 transfers the kinetic energy to the rear guard plate 3 to absorb the second collision kinetic energy. The front guard plate 2 and the rear guard plate 3 continue to deform, and the kinetic energy borne by the rear guard plate 3 causes the rear guard plate 3 to have a tendency to break. However, since a groove 6 is provided in the middle of the force unloading plate 5, the stress is concentrated at the groove 6. When the force unloading plate 5 breaks at the groove 6, the kinetic energy is further released to absorb the third collision kinetic energy. After the force unloading plate 5 breaks, the buffer bend 4 of the rear guard plate 3 loses the restriction of the force unloading plate 5 and can be deformed freely. The fourth collision kinetic energy is absorbed by the deformation of the buffer bend 4. Through the absorption of four kinetic energies, the collision kinetic energy of the vehicle is greatly reduced, the possibility of the front guard plate 2 and the rear guard plate 3 breaking is reduced, and the protective performance of the guardrail is greatly improved.
[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various changes and variations are possible. Any modifications, equivalent substitutions, improvements, etc. made using the present invention should be included in the protection scope of the present invention.
Claims
1. A highly efficient buffer-type anti-collision corrugated guardrail, comprising a column (1) and a guard plate, wherein both ends of the guard plate are respectively mounted on two columns (1), and characterized in that: The guard plate comprises a front guard plate (2) and a rear guard plate (3), the front guard plate (2) and the rear guard plate (3) being respectively mounted on both sides of the column (1), the front guard plate (2) being a corrugated plate; the rear guard plate (3) being in the shape of an elongated strip, the middle of the rear guard plate (3) being bent outwards to form a buffer bend (4), a force unloading plate (5) being provided at the mouth of the buffer bend (4), the two sides of the force unloading plate (5) being connected to the rear guard plate (3), and a vertical groove (6) being provided in the middle of the force unloading plate (5).
2. The high-efficiency buffer-type anti-collision corrugated guardrail according to claim 1 is characterized in that: The buffer bend (4) is in an M shape.
3. The high-efficiency buffer-type anti-collision corrugated guardrail according to claim 2 is characterized in that: The number of buffer bends (4) on the rear guard plate (3) is two.
4. The high-efficiency buffer-type anti-collision corrugated guardrail according to claim 3 is characterized in that: A buffer portion is provided between the two buffer bends (4), the buffer portion comprising a buffer plate (7) and a buffer column (8), one end of the buffer column (8) being vertically connected to the rear guard plate (3) and the other end being connected to the buffer plate (7), the buffer plate (7) and the buffer column (8) being located between the front guard plate (2) and the rear guard plate (3).
5. The high-efficiency buffer-type anti-collision corrugated guardrail according to claim 4 is characterized in that: The buffer columns (8) are two in number and are connected to the rear guard plate (3) in a vertical direction, and the buffer plate (7) is simultaneously connected to the two buffer columns (8).
6. The high-efficiency buffer-type anti-collision corrugated guardrail according to claim 5 is characterized in that: Two buffer portions are provided between the two buffer bends (4).