CN108755513B

CN108755513B - Highway buffer stop

Info

Publication number: CN108755513B
Application number: CN201810943890.8A
Authority: CN
Inventors: 张延年; 周玲雪
Original assignee: Shenyang Jianzhu University
Current assignee: Zhang Yannian
Priority date: 2018-08-18
Filing date: 2018-08-18
Publication date: 2020-10-23
Anticipated expiration: 2038-08-18
Also published as: CN108755513A

Abstract

The invention relates to an anti-collision device for a highway, and belongs to the technical field of highway guardrails. The anti-collision buffer unit comprises an anti-collision buffer unit, a connecting unit and an upright post; the anti-collision buffer unit is positioned at one side close to the highway and is connected with the upright post through a plurality of upper and lower connecting units; the anti-collision buffer unit consists of a pressure reducing plate, a sliding block, a damping spring, a base, a tension spring, a screw, a buffer layer and a light reflecting strip; the pressure reducing plate and the buffer layer are in a semicircular shape, straight sections are arranged at the top and the bottom of the pressure reducing plate and the buffer layer, and the straight sections are fixedly connected with the connecting parts of the pressure reducing plate and the buffer layer and the sliding blocks through screws; the base is composed of a sliding groove, a protruding part and a limiting baffle. The invention can effectively absorb the impact force of the out-of-control vehicle, reduce the damage to the vehicle in the collision process, effectively prevent the vehicle body and the crew members from being damaged by the damaged rigid guardrail plate, improve the safety performance of the highway guardrail, prevent the collision-proof structure from being damaged due to excessive deformation, and has good use effect and strong practicability.

Description

Highway buffer stop

Technical Field

The invention relates to an anti-collision device for a highway, and belongs to the technical field of highway guardrails.

Background

With the mass construction of highways, urban interchange and the like and the great increase of the global automobile holding capacity, the incidence rate of traffic accidents also shows an increasing trend. At present, protective devices on two sides of a highway mainly comprise upright posts and guardrail plates positioned on the upper portions of the upright posts, the guardrail plates are made of steel plates, and the upright posts and the guardrail plates are made of rigid materials. The existing guard rails in the current market do not have the functions of buffering and damping when in use, when an automobile collides with a guard rail plate, the automobile can only damage energy absorption by means of deformation of the guard rail plate, and the deformation capacity and the energy absorption capacity are limited. And the guard rail plate is easy to break under the impact action of the automobile, so that the guard rail cannot be normally used, and secondary damage to the safety of the automobile and crew is easy to cause.

In conclusion, how to solve the problem that the conventional highway guardrail has limited deformation capacity and energy absorption capacity becomes a problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In order to solve the technical problems, the invention provides an expressway anti-collision device, which is mainly developed to be provided with an anti-collision buffer unit, has good use effect and strong practicability, can effectively absorb the impact force of an out-of-control vehicle, can reduce the damage to the vehicle in the collision process, can effectively prevent a vehicle body and crewmembers from being damaged by a damaged rigid guardrail plate, can effectively improve the safety performance of an expressway guardrail, and can avoid the problems of damage caused by excessive deformation of an anti-collision structure and the like.

In order to achieve the purpose, the invention provides the following scheme:

the highway anti-collision device comprises an anti-collision buffer unit, a connecting unit and a stand column; the anti-collision buffer unit is positioned at one side close to the highway and is connected with the upright post through a plurality of upper and lower connecting units; the anti-collision buffer unit consists of a pressure reducing plate, a sliding block, a damping spring, a base, a tension spring, a screw, a buffer layer and a light reflecting strip; arranging a buffer layer on the outer surface of the pressure reducing plate, wherein the pressure reducing plate and the buffer layer are semicircular, the top and the bottom are straight sections, the two straight sections are provided with a light reflecting strip, and the pressure reducing plate, the buffer layer and the light reflecting strip are fixedly connected with the sliding block through screws; the base comprises spout, bulge and limit baffle, and the shape of the longitudinal section of base is the chevron shape, sets up the spout in its upper portion and lower part symmetry on its own, and both ends all set up limit baffle about the base, and the extension spring is located the spout, and the one end of the extension spring in the upper end spout is connected with the downside of slider, and the other end is connected with bulge's upside, and the one end of the extension spring in the lower extreme spout is connected with the upside of slider, and the other end is connected with bulge's downside.

Furthermore, the cross section of the sliding block is in a convex shape.

Furthermore, the vertical cross-sectional shape of the sliding groove of the base is C-shaped, and the size and the number of the sliding grooves are matched with those of the sliding blocks.

Furthermore, the connecting unit is composed of a telescopic rod and an elastic buffer block, the elastic buffer block is tubular, the central part of the elastic buffer block is hollow, and the telescopic rod is located in the elastic buffer block.

Further, the material of the buffer layer is an elastic buffer material.

Further, the material of the decompression plate is a metal material.

Furthermore, the upright post is made of steel, and can be made of cement materials according to actual use conditions or cost limitation.

Furthermore, the elastic buffer block is a porous buffer block made of polyurethane material.

Furthermore, both ends of the telescopic rod are fixedly connected with the upright post and the base.

The invention has the beneficial effects that:

the invention has the effects and advantages that the sliding blocks are matched with the sliding grooves and are respectively connected to the two sides of the protruding part of the base through the tension springs, so that when the pressure reducing plate bears the impact from an out-of-control vehicle, the pressure reducing plate can deform and push the connected sliding blocks to respectively move towards the upper part and the lower part of the upright post, at the moment, the tension springs buffer the impact force in a mode of preventing the sliding blocks from being far away from the protruding part of the base, the damping springs arranged between the pressure reducing plate and the base can buffer the impact force in a mode of preventing the pressure reducing plate from being close to the base, and finally, the connecting unit of the device can buffer the impact force through deformation. This highway buffer stop can absorb the impact of the vehicle out of control effectively to can reduce the hard excessive damage that strikes in-process and produce the vehicle, simultaneously, also can prevent protective structure's excessive deformation or with stand phase separation.

Drawings

Fig. 1 is a schematic structural view of a highway anti-collision device.

Fig. 2 is a schematic structural view of a crash cushion unit according to the present invention.

FIG. 3 is a schematic view of a base structure according to the present invention.

Fig. 4 is an overall mounting elevation view of the present invention.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 according to the present invention.

FIG. 6 is a schematic view of a connection unit structure according to the present invention.

In the figure, 1 is a collision avoidance buffer unit; 2 is a connecting unit; 3 is a column; 4 is a decompression plate; 5 is a slide block; 6 is a damping spring; 7 is a base; 8 is a tension spring; 9 is a screw; 10 is a buffer layer; 11 is a reflective strip;

2-1 is a telescopic rod; 2-2 is an elastic buffer block;

7-1 is a chute; 7-2 is a projection; 7-3 is a limit baffle.

Detailed Description

For further explanation of the invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and examples: they are not to be construed as limiting the scope of the invention.

In the embodiment, as shown in fig. 1-6, the highway anti-collision device comprises an anti-collision buffer unit 1, a connecting unit 2 and a vertical column 3; the anti-collision buffer unit 1 is positioned at one side close to a highway and is connected with the upright post 3 through an upper connecting unit 2 and a lower connecting unit 2; the anti-collision buffer unit 1 consists of a pressure reducing plate 4, a sliding block 5, a damping spring 6, a base 7, a tension spring 8, a screw 9, a buffer layer 10 and a light reflecting strip 11; arranging a buffer layer 10 on the outer surface of the pressure reducing plate 4, wherein the pressure reducing plate 4 and the buffer layer 10 are in a semicircular shape, the top and the bottom are straight sections, the two straight sections at the two ends are provided with a light reflecting strip 11, and the pressure reducing plate 4, the buffer layer 10 and the light reflecting strip 11 are fixedly connected with the sliding block 5 through screws 9; the base 7 consists of a chute 7-1, a protruding part 7-2 and a limit baffle 7-3, the longitudinal section of the base 7 is in a shape of Chinese character 'shan', the chutes 7-1 are symmetrically arranged at the upper part and the lower part of the base 7, the limit baffles 7-3 are arranged at the upper end and the lower end of the base 7, the tension spring 8 is positioned in the chute 7-1, one end of the tension spring 8 in the chute 7-1 at the upper end is connected with the lower side of the sliding block 5, the other end of the tension spring is connected with the upper side of the protruding part 7-2, one end of the tension spring 8 in the chute 7-1 at the lower end is connected with the upper side of the sliding block 5; the cross section of the sliding block 5 is in a convex shape; the vertical section of the chute 7-1 of the base 7 is C-shaped, and the size and the number of the chute 7-1 are adapted to the size and the number of the slide blocks 5; the connecting unit 2 consists of a telescopic rod 2-1 and an elastic buffer block 2-2, wherein the elastic buffer block 2-2 is tubular, the central part of the elastic buffer block is hollow, and the telescopic rod 2-1 is positioned in the elastic buffer block; the buffer layer 10 is made of elastic buffer material; the material of the decompression plate 4 is a metal material; the upright column 3 is made of steel, and can be made of cement materials according to actual use conditions or cost limitation; the elastic buffer block 2-2 is a porous buffer block made of polyurethane material; both ends of the telescopic rod 2-1 are fixedly connected with the upright post 3 and the base 7.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Highway buffer stop, its characterized in that: comprises an anti-collision buffer unit (1), a connecting unit (2) and a vertical column (3); the anti-collision buffer unit (1) is positioned at one side close to a highway and is connected with the upright post (3) through an upper connecting unit and a lower connecting unit (2); the anti-collision buffer unit (1) consists of a pressure reducing plate (4), a sliding block (5), a damping spring (6), a base (7), a tension spring (8), a screw (9), a buffer layer (10) and a light reflecting strip (11); the buffer layer (10) is arranged on the outer surface of the pressure reducing plate (4), the pressure reducing plate (4) and the buffer layer (10) are in a semicircular shape, the top and the bottom of the pressure reducing plate are straight sections, the two straight sections are provided with the light reflecting strips (11), and the pressure reducing plate (4), the buffer layer (10) and the light reflecting strips (11) are fixedly connected with the sliding block (5) through screws (9); the base (7) consists of a sliding groove (7-1), a protruding part (7-2) and a limit baffle (7-3), the longitudinal section of the base (7) is in a shape of Chinese character 'shan', the sliding groove (7-1) is symmetrically arranged at the upper part and the lower part of the base, the limit baffle (7-3) is arranged at the upper end and the lower end of the base (7), a tension spring (8) is positioned in the sliding groove (7-1), one end of the tension spring (8) in the sliding groove (7-1) at the upper end is connected with the lower side of a sliding block (5), the other end of the tension spring is connected with the upper side of the protruding part (7-2), one end of the tension spring (8) in the sliding groove (7-1) at the lower end is connected with the upper side of the sliding block (5), the other end of the tension spring is connected with the lower side of the protruding part (7-2), the connecting unit, the elastic buffer block (2-2) is tubular, the center of the elastic buffer block is hollow, the telescopic rod (2-1) is located in the elastic buffer block, the cross section of the sliding block (5) is in a convex shape, the vertical cross section of the sliding groove (7-1) of the base (7) is in a C shape, the size and the number of the sliding groove (7-1) are matched with those of the sliding block (5), the buffer layer (10) is made of an elastic buffer material, the pressure reducing plate (4) is made of a metal material, the upright post (3) is made of a steel material, a cement material can be used according to practical use conditions or cost limitation, the elastic buffer block (2-2) is a porous buffer block made of a polyurethane material, and the two ends of the telescopic rod (2-1) are fixedly connected with the upright post (3) and the base (7).