Road bridge anti-collision structure for traffic

Abstract

The utility model relates to a highway bridge anti-collision structure for traffic, which comprises a guardrail body and a protection component, the guardrail body comprises upright posts and cross rods, the cross rods are arranged between the upright posts side by side at intervals, the protection component comprises an energy absorption box, an anti-collision beam, a back plate and a buffer piece, the back plate is in a groove shape, and the buffer piece is arranged in the anti-collision beam. The end opening of the back plate is provided with a blocking strip bent inwards, the back plate is connected with the stand column through the energy absorption box, the buffering pieces are made of rubber materials and are in an arch shape, the multiple buffering pieces are arranged side by side at intervals in the length direction of the back plate, the anti-collision beam is movably installed in the back plate, and the buffering pieces are located between the anti-collision beam and the back plate. The rear end of the anti-collision beam is provided with a stopping part corresponding to the stopping strip, the front end of the anti-collision beam is hollow, and the anti-collision beam is filled with foam. The anti-collision beam, the buffering piece and the energy absorption box form multi-stage buffering energy absorption, the impact force can be effectively borne, the safety of vehicles and pedestrians is protected, the assembly structure is simple, the damaged part caused by collision is convenient to replace, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic protection, in particular to an anti-collision structure of a highway bridge for traffic. Background Art

[0002] With the development of the times and the advancement of science and technology, cars have become one of the most important means of transportation for people in short and medium distances. With the increase in the number of cars, various traffic accidents have also followed one after another, especially when cars collide with the guardrails of highway bridges. Since the existing guardrails are mostly metal or concrete columns, lacking buffers, and the normal driving speed is high, the impact force generated by the sudden stop of the car after the collision is too large, causing serious damage to the vehicle and even threatening the life and health of the driver. Therefore, it is necessary to improve the anti-collision structure of the existing highway bridge guardrail structure so that it can play a certain protective role for the driving vehicle and avoid rollover or fall. Utility Model Content

[0003] Based on this, it is necessary to provide an anti-collision structure for a highway bridge for transportation to address the above problems.

[0004] A collision avoidance structure for a highway bridge for traffic comprises a guardrail body and a protection assembly, wherein the guardrail body comprises columns and cross bars, and a plurality of the cross bars are arranged side by side and spaced between the columns, and the protection assembly comprises an energy absorption box, an anti-collision beam, a back plate and a buffer, wherein the back plate is in a groove shape, and a stop strip bent inwardly is arranged at the port of the back plate, and the back plate is connected to the columns through the energy absorption box, and the buffer is made of rubber material and is in an arch shape, and a plurality of the buffers are arranged side by side and spaced along the length direction of the back plate, and the anti-collision beam is movably installed in the back plate, and the buffer is located between the anti-collision beam and the back plate, and a stop portion is arranged at the rear end of the anti-collision beam corresponding to the stop strip, and the front end of the anti-collision beam is hollow and filled with foam.

[0005] Preferably, a reflective strip is adhered to the front end surface of the anti-collision beam.

[0006] Preferably, the energy absorption box comprises an outer shell and a reinforcement member, wherein the reinforcement member is attached to the inner wall of the outer shell, and a fixing ear is provided at an edge of the outer shell, and a bolt passes through the fixing ear to be connected to the column.

[0007] Preferably, the side edge of the back plate is designed to be wavy.

[0008] Preferably, the anti-collision beam is made of aluminum alloy.

[0009] Preferably, a counterweight seat is provided at the bottom of the column.

[0010] The utility model is beneficial in that the anti-collision beam, the buffer part and the energy absorption box form a multi-level buffer energy absorption, which can effectively bear the impact force and protect the safety of vehicles and pedestrians. The assembly structure is simple, which is convenient for replacing the damaged parts due to the collision and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional schematic diagram of an anti-collision structure of a highway bridge for transportation according to one embodiment;

[0012] Figure 2 It is a schematic diagram of the assembly structure of the anti-collision beam, back plate and buffer member;

[0013] Figure 3 This is a schematic diagram of the energy absorption box structure. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0015] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] like Figures 1 to 3As shown, a collision-proof structure of a highway bridge for traffic comprises a guardrail body 1 and a protection assembly 2, wherein the guardrail body 1 comprises a column 11 and a crossbar 12, wherein a plurality of the crossbars 12 are arranged side by side and spaced apart between the columns 11, the protection assembly 2 comprises an energy absorption box 21, an anti-collision beam 22, a back plate 23 and a buffer 24, wherein the back plate 23 is in a groove shape, and a stop strip 231 bent inwardly is arranged at the port of the back plate 23, the back plate 23 is connected to the column 11 through the energy absorption box 21, the buffer 24 is made of rubber material and is in an arch shape, and a plurality of the buffers 24 are arranged side by side and spaced apart along the length direction of the back plate 23, the anti-collision beam 22 is movably installed in the back plate 23, the buffer 24 is located between the anti-collision beam 22 and the back plate 23, a stop portion 221 is arranged at the rear end of the anti-collision beam 22 corresponding to the stop strip 231, and the front end of the anti-collision beam 22 is hollow and filled with foam. Specifically, in this embodiment, the guardrail body 1 is made of reinforced concrete to ensure the structural strength of the guardrail body 1. The columns 11 are vertically installed on both sides of the road or bridge, and the crossbar 12 connects the adjacent columns 11 to form a whole. On the side of the guardrail body 1 close to the road, a protective component 2 is added. Specifically, a connector is directly used to vertically install the energy absorption box 21 on the column 11. The energy absorption box 21 is hollow and can collapse and absorb energy after being impacted. At the same time, the energy absorption box 21 serves as a carrier of the back plate 23. During assembly, it can be connected to the back plate 23 by welding, which is convenient for assembly. The back plate 23 is in a groove shape, which is convenient for the staff to assemble the buffer 24 into the back plate 23. The buffer 24 is made of high-elastic rubber material and is sealed between the back plate 23 and the anti-collision beam 22 to avoid wind and sun exposure and ensure its service life. At the same time, the elasticity of the buffer 24 itself can be used to absorb the impact energy. In order to facilitate the buffer 24 to absorb the impact potential energy, we assemble the energy absorption box 21 on the back plate 23 in a movable manner, so that the energy absorption box 21 can be displaced to the side of the back plate 23 after being impacted. At this time, the buffer 24 is under pressure. Because it is in an arched shape, it begins to deform and is slowly flattened to absorb the impact potential energy. When the impact force disappears, the buffer 24 restores its shape and pushes the anti-collision beam 22 to move away from the back plate 23 again, so that the stopper 221 at the rear end of the anti-collision beam 22 is matched with the stopper bar 231 at the port of the back plate 23 again, and abuts. With the pressure provided by the buffer 24, the stopper 221 and the stopper bar 231 are tightly matched to prevent the entry of external water vapor and dust. At the same time, in order to achieve a lightweight design and facilitate the replacement of the anti-collision beam 22 damaged by force collision, the anti-collision beam 22 is made of aluminum alloy and is designed to be hollow, with foam filled inside to improve a certain buffering protection ability.

[0018] Specifically, a reflective strip is adhered to the front end surface of the anti-collision beam 22, which can serve as a warning when driving at night.

[0019] like Figure 3As shown, the energy absorption box 21 includes an outer shell 211 and a reinforcement 212. The reinforcement 212 is attached to the inner wall of the outer shell 211. The outer shell 211 is provided with a fixing ear at the edge, and a bolt passes through the fixing ear to connect with the column 11. Specifically, the outer shell 211 is made of aluminum alloy, which has strong corrosion resistance. The internal reinforcement 212 is made of sheet metal and spot-welded on the inner wall of the outer shell 211 to provide support and enhance structural strength. At the same time, the outer shell 211 is provided with a fixing ear at the edge, which is convenient for connecting with the concrete column by bolting. The side wall of the outer shell 211 along the collapse direction is also designed to be a V-shaped that expands outward, which is easier to collapse and absorb energy.

[0020] like Figures 1-2 As shown, the side portion of the back plate 23 is designed to be wavy. When the impact energy is large, the end of the anti-collision beam 22 is flattened, and the impact force acts on the side portion of the back plate 23 through the anti-collision beam 22. At this time, the side portion of the back plate 23 is wavy, forming a rectangular spring, which can collapse to absorb energy and reduce the impact.

[0021] like Figure 1 As shown, a counterweight seat 111 is provided at the bottom of the column 11 to enhance the structural strength of the connection with the ground and increase the contact area with the road surface to prevent the column 11 from being directly inserted into the ground and easily sinking over time.

[0022] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A traffic highway bridge anti-collision structure, characterized in that: It includes a guardrail body and a protection component. The guardrail body includes columns and cross bars. Several of the cross bars are arranged side by side between the columns. The protection component includes an energy absorption box, an anti-collision beam, a back plate and a buffer. The back plate is in a groove shape. A stop strip bent inward is arranged at the port of the back plate. The back plate is connected to the column through the energy absorption box. The buffer is made of rubber material and is arched. Several of the buffers are arranged side by side along the length direction of the back plate. The anti-collision beam is movably installed in the back plate. The buffer is located between the anti-collision beam and the back plate. A stop portion is arranged at the rear end of the anti-collision beam corresponding to the stop strip. The front end of the anti-collision beam is hollow and filled with foam.

2. The anti-collision structure of a highway bridge for traffic as claimed in claim 1, characterized in that: A reflective strip is adhered to the front end surface of the anti-collision beam.

3. The anti-collision structure of a highway bridge for traffic as claimed in claim 1, characterized in that: The energy absorption box comprises an outer shell and a reinforcement member, wherein the reinforcement member is attached to the inner wall of the outer shell, and a fixing ear is arranged on the edge of the outer shell, and a bolt passes through the fixing ear to be connected with a column.

4. The anti-collision structure of a highway bridge for traffic as claimed in claim 1, characterized in that: The side edge of the back plate is designed to be wavy.

5. The anti-collision structure of a highway bridge for traffic as claimed in claim 1, characterized in that: The anti-collision beam is made of aluminum alloy.

6. The anti-collision structure of a highway bridge for traffic as claimed in claim 1, characterized in that: A counterweight seat is arranged at the bottom of the column.

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