CN215482311U

CN215482311U - Anti-collision guardrail

Info

Publication number: CN215482311U
Application number: CN202121913053.4U
Authority: CN
Inventors: 吴佑; 王怡; 刘茜茜; 方小桃; 罗丹
Original assignee: Chongqing Design Institute Co Ltd
Current assignee: Chongqing Design Institute Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-11
Anticipated expiration: 2031-08-16

Abstract

The utility model provides an anti-collision guardrail which comprises two bases (1), two upright columns (2), connecting fixing rods (3) and a buffering assembly (4), wherein the bases (1) are fixedly arranged on the ground, and the upper ends of the bases (1) are respectively and fixedly connected with the upright columns (2); the two upright posts (2) are connected through two connecting fixing rods (3), and the two connecting fixing rods (3) are respectively positioned at the upper end and the lower end of each upright post (2) and are parallel to each other; the buffer assembly (4) is arranged between the two connecting fixing rods (3) and the two upright posts (2) and comprises a fixing frame (41), a rotating rod (42), a connecting block (43), a sliding block (44) and a first spring (22). The elastic anti-collision guardrail is high in protection performance and good in safety performance, and can effectively reduce the impact force of a vehicle when the vehicle is impacted, so that the vehicle is prevented from rushing out of a bridge body and causing traffic safety accidents.

Description

Anti-collision guardrail

Technical Field

The utility model relates to the technical field of bridge protection devices, in particular to an anti-collision guardrail.

Background

With the development of urban construction in China, the traffic industry also enters the trend of rapid development, and various highway bridges are continuously built; the construction of the highway bridge greatly improves the traffic transport capacity of China, promotes the circulation among various regions, and accelerates the economic development of China, but also causes the increase of traffic safety accidents, namely harming the life safety of people, causing traffic jam and directly or indirectly increasing the economic loss. Therefore, in order to reduce or even avoid traffic accidents, it is common in the prior art to install guard rails on roads or bridges so as to achieve corresponding protection measures.

However, the existing guard rail device has a simple structure and poor buffering performance, and is usually easy to deform, even break and collapse after a vehicle is collided, so that the vehicle is overturned and casualties are caused; especially, for the bridge protection fence device, if the vehicle cannot be timely and effectively buffered and limited, the vehicle may rush out of the guardrail due to large impact force, which causes a serious safety accident that the vehicle and the person are separated from the bridge body and fall into water. Therefore, in order to avoid the vehicle rushing out of the bridge body, improve the protection level and ensure the life and property safety of people, the bridge overturning guardrail in the prior art needs to be further improved.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide an anti-collision guardrail to solve the problems in the prior art.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a crash barrier which characterized in that: the device comprises two bases, upright columns, connecting fixing rods and buffer assemblies, wherein the two bases are fixedly arranged on the ground, and the upper ends of the bases are respectively fixedly connected with the upright columns; the two upright posts are connected through two connecting fixing rods, and the two connecting fixing rods are respectively positioned at the upper end and the lower end of each upright post and are parallel to each other; the buffer component is arranged between the two connecting fixing rods and the two upright posts and comprises a fixing frame, a rotating rod, connecting blocks, a sliding block and a first spring, wherein the fixing frame is a rectangular frame, the outer walls of the two sides of the fixing frame are uniformly provided with a plurality of connecting blocks along the vertical direction, one end of each connecting block is fixedly connected with the outer wall of the fixing frame, the other end of each connecting block penetrates through the corresponding upright post and is fixedly connected with the corresponding sliding block, the inner cavity of each upright post is provided with a sliding groove corresponding to the corresponding sliding block, the sliding block is arranged in the sliding groove and is in sliding connection with the sliding groove, one side of the sliding groove is fixedly provided with the first spring which is fixedly connected with the sliding block, the rotating rod is of a cylindrical structure, is provided with a plurality of connecting rods which are uniformly distributed in the fixing frame, and the central axis of the rotating rod is parallel to the central axis of the upright post, the upper end and the lower end of the rotating rod are respectively embedded into the upper end and the lower end of the fixed frame and are rotationally connected with the fixed frame.

Further optimization, the end face of the base is provided with a screw hole, a fastening bolt is arranged in the screw hole, and the base is fixed on the ground through the matching of the fastening bolt and the screw hole.

Further optimization, the base is close to the fixed inclined support rod that sets up of up end on one side of first spring, the inclined support rod keep away from the base one end with stand fixed connection.

Further optimization, the outer wall of the rotating rod is coated with an elastic buffer layer, and the side face of the fixed frame, far away from one side of the first spring, is provided with the elastic buffer layer.

Preferably, the thickness of the elastic buffer layer is not less than 3 cm.

In a further optimization, the upper end and the lower end of the rotating rod are respectively connected with the fixed frame in a rotating mode through ball bearings.

The upper end outer wall and the lower end outer wall of the fixed frame are respectively connected with the connecting fixed rods on the upper side and the lower side through second springs, and the second springs are uniformly distributed along the horizontal direction.

Further optimization is carried out, a fluorescent warning strip is arranged between the stand columns and at the upper end of the stand columns and on the upper side of the connecting fixing rod and used for prompting drivers.

The utility model has the following technical effects:

according to the vehicle shock absorber, the fixed frame is matched with the rotary rod, so that the shock force generated by the shock is relieved through the rotation of the rotary rod at the moment of vehicle shock, and the first force unloading is realized; through fixed frame, connect the piece, the cooperation of sliding block and first spring and the cooperation of being connected dead lever and second spring, thereby carry out elastic buffer to the impact force that the collision produced, and spacing to fixed frame, elastic deformation through first spring and second spring forms the second time and unloads power and spacing, thereby effectively offset the instantaneous impact force when car striking guardrail bar, simultaneously through the spring action of spring with the car restriction in guardrail bar, avoid the car to dash out guardrail bar.

The guardrail of the application is reasonable in structure, high in protection safety, convenient to maintain, low in design and use cost, wide in application range and high in practicability.

Drawings

Fig. 1 is a schematic view of the overall structure of an elastic crash barrier in an embodiment of the utility model.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is a partially enlarged view of fig. 1 taken along line C.

Wherein, 1, a base; 11. screw holes; 12. fastening a bolt; 13. inclining the support rod; 2. a column; 21. a sliding groove; 22. a first spring; 23. a fluorescent warning strip; 3. connecting a fixed rod; 30. a second spring; 4. a buffer assembly; 41. a fixed frame; 42. rotating the rod; 421. a ball bearing; 422. an elastic buffer layer; 43. connecting blocks; 44. and a slider.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figures 1-4, an anti-collision guardrail is characterized in that: the device comprises two bases 1, two upright columns 2, connecting fixing rods 3 and buffer assemblies 4, wherein the two bases 1 are fixedly arranged on the ground, and the upper ends of the bases 1 are respectively fixedly connected with the upright columns 2; the two upright posts 2 are connected through two connecting fixing rods 3, and the two connecting fixing rods 3 are respectively positioned at the upper end and the lower end of the upright posts 2 and are parallel to each other; the buffer assembly 4 is arranged between two connecting fixing rods 3 and two upright posts 2, and comprises a fixing frame 41, a rotating rod 42, a connecting block 43, a sliding block 44 and a first spring 22, wherein the fixing frame 41 is a rectangular frame, the outer walls of two sides of the fixing frame are uniformly provided with a plurality of connecting blocks 43 along the vertical direction, one end of each connecting block 43 is fixedly connected with the outer wall of the fixing frame 41, the other end of each connecting block 43 penetrates through the corresponding upright post 2 and is fixedly connected with the corresponding sliding block 44, the inner cavity of each upright post 2 is provided with a sliding groove 21 corresponding to the sliding block 44, the sliding block 44 is arranged in the sliding groove 21 and is in sliding connection with the sliding groove 21, one side of the sliding groove 21 is fixedly provided with the first spring 22, the first spring 22 is fixedly connected with the sliding block 44, the rotating rod 42 is of a cylindrical structure and is uniformly distributed in the fixing frame 41, the central axis of the rotating rod 42 is parallel to the central axis of the upright post 2, and the upper and lower two ends of the rotating rod 42 are respectively embedded in the upper and lower ends of the fixing frame 41, The lower end is rotatably connected with the fixed frame 41 through a ball bearing 421.

The end face of the base 1 is provided with a screw hole 11, a fastening bolt 12 is arranged in the screw hole 11, and the base 1 is fixed on the ground through the matching of the fastening bolt 12 and the screw hole 11; the upper end face of the base 1 close to one side of the first spring 22 (namely one side of the whole guardrail structure far away from the bridge body, namely the outer side of the guardrail structure) is fixedly provided with an inclined supporting rod 13, and one end of the inclined supporting rod 13 far away from the base 1 is fixedly connected with the upright post 2.

The outer wall of the rotating rod 42 is wrapped by an elastic buffer layer 422, and the side surface of the fixing frame 41 away from the first spring 22 (i.e. the side of the whole guardrail structure located on the bridge body, i.e. the inner side of the guardrail structure) is provided with the elastic buffer layer 422; preferably, the thickness of the elastic buffer layer 422 is not less than 3 cm.

The outer walls of the upper and lower ends of the fixing frame 41 are respectively connected with the upper and lower connecting fixing rods 3 through second springs 30, and the second springs 30 are uniformly distributed along the horizontal direction.

A fluorescent warning strip 23 is arranged between the upright posts 23 and on the upper side of the upper end of the connecting fixing rod 3 for prompting a driver.

Preferably, the fixed connection of the present application can be achieved by welding.

The working principle is as follows:

when in use, the whole elastic anti-collision guardrail is fixedly arranged at two sides of a bridge through the screw holes 11 and the fastening bolts 12; the stability of the upright post 2 can be effectively increased by arranging the inclined supporting rod 13. When a vehicle is collided to the elastic anti-collision guardrail by accident, the vehicle body is prevented from being directly contacted with the guardrail bar through the elastic buffer layer 422, so that a first layer of protection is formed, and the instant impact force generated by collision is dissolved by converting the linear impact force into the tangential force through the rotation of the rotating rod 42; meanwhile, the fixed frame 41 moves to one side far away from the bridge body due to the impact, so that the sliding block 4 is driven to move to one side far away from the bridge body through the connecting block 43, the first spring 22 is compressed, the second spring 30 is stretched due to the fixed position of the connecting fixed rod 3, and the continuous acting force generated by the impact of the vehicle on the guardrail is dissolved through the elastic force action of the two springs; and the fixed frame 41 and the rotating rod 42 are limited under the action of the spring, so that the vehicle in contact with the fixed frame is limited, and the vehicle is prevented from rushing out of the bridge.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The utility model provides a crash barrier which characterized in that: the device comprises two bases (1), two upright columns (2), connecting fixing rods (3) and buffer assemblies (4), wherein the bases (1) are fixedly arranged on the ground, and the upper ends of the bases (1) are respectively and fixedly connected with the upright columns (2); the two upright posts (2) are connected through two connecting fixing rods (3), and the two connecting fixing rods (3) are respectively positioned at the upper end and the lower end of each upright post (2) and are parallel to each other; the buffer assembly (4) is arranged between the two connecting fixing rods (3) and the two upright posts (2) and comprises a fixing frame (41), a rotating rod (42), a connecting block (43), a sliding block (44) and a first spring (22), the fixing frame (41) is a rectangular frame, a plurality of connecting blocks (43) are uniformly arranged on the outer walls of the two sides of the fixing frame along the vertical direction, one end of each connecting block (43) is fixedly connected with the outer wall of the fixing frame (41), the other end of each connecting block penetrates through the corresponding upright post (2) and is fixedly connected with the corresponding sliding block (44), the inner cavity of each upright post (2) is provided with a sliding groove (21) corresponding to the corresponding sliding block (44), the sliding block (44) is arranged in the sliding groove (21) and is slidably connected with the sliding groove (21), one side of the sliding groove (21) is fixedly provided with the first spring (22) and the first spring (22) is fixedly connected with the sliding block (44), the utility model discloses a fixed frame, including fixed frame (41), rotary rod (42) be the cylinder structure, set up many and evenly distributed in fixed frame (41), the axis of rotary rod (42) with the axis of stand (2) is parallel, the upper and lower both ends of rotary rod (42) imbed respectively the upper and lower end of fixed frame (41) and with fixed frame (41) rotate and are connected.

2. A crash barrier according to claim 1, wherein: screw holes (11) are formed in the end face of the base (1), and fastening bolts (12) are arranged in the screw holes (11).

3. A crash barrier according to claim 1, wherein: the base (1) is close to the fixed bracing piece (13) that sets up of up end on one side of first spring (22), the bracing piece that inclines (13) keep away from the one end of base (1) with stand (2) fixed connection.

4. A crash barrier according to claim 1, wherein: the outer wall of the rotating rod (42) is wrapped by an elastic buffer layer (422), and the side face, far away from one side of the first spring (22), of the fixed frame (41) is provided with the elastic buffer layer (422).

5. A crash barrier according to claim 1, wherein: the upper end and the lower end of the rotating rod (42) are respectively connected with the fixed frame (41) in a rotating way through ball bearings (421).

6. A crash barrier according to claim 1, wherein: the outer walls of the upper end and the lower end of the fixed frame (41) are respectively connected with the connecting fixed rods (3) on the upper side and the lower side through second springs (30), and the second springs (30) are uniformly distributed along the horizontal direction.

7. A crash barrier according to claim 1, wherein: and a fluorescent warning strip (23) is arranged between the upright posts (2) and at the upper end of the connecting fixing rod (3).