CN201358443Y

CN201358443Y - Crash-proof guard rail with energy-absorbing device

Info

Publication number: CN201358443Y
Application number: CNU2009200096672U
Authority: CN
Inventors: 金德民
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-16
Filing date: 2009-02-16
Publication date: 2009-12-09
Anticipated expiration: 2019-02-16

Abstract

The utility model discloses a crash-proof guard rail with energy-absorbing device, which comprises a guard rail plate, a guard rail foundation and a spring energy-absorbing component, wherein colliding force of a vehicle to the guard rail plate is transmitted to a cap-shaped piece through a V-shaped guiding element after a vehicle is collided, the cap-shaped piece compresses a pillar-shaped helical spring and generates a displacement in a barrel-shaped element, thereby absorbing the collision function of a vehicle, prolonging time of colliding the guard rail plate by the vehicle, and reducing the reacting force of the guide rail plate to the vehicle. In addition, a support arm which is placed on a cap-shaped piece guide groove and a guide groove on the cap-shaped piece form an angle along the horizontal direction, and the angle decomposes majority of force which is transmitted to the V-shaped guiding element by the cap-shaped piece and is reacted on the vehicle, and the acting force approaches to a constant, and therefore, the collision dynamic characteristics of the vehicle are further assured to approach to an ideal collision curved line, thereby effectively guaranteeing the safety of passengers in an accident vehicle, and lowering the damaging degree of vehicles. The crash-proof guard rail with energy-absorbing device has simple structure, and is convenient for quickly repairing.

Description

Anticollision barrier with energy absorption device

Technical field

The utility model relates to a kind of anticollision barrier, especially relates to a kind of anticollision barrier that has the spring energy absorption device.

Background technology

Anticollision barrier is widely used on the Dangerous Area of speedway, Class I highway and highway as important safety protective equipment on the highway, it can stop vehicle to go out highway effectively, reduce casualties and property loss that traffic accident brings, anticollision barrier is divided into stiff safety fence, semi-rigidity rail and flexible safety fence three classes according to rigidity, and also there is bigger difference in the mechanism of its structure and energy absorption.Semi-rigidity rail is because easily carrying; on-the-spot simple installation; bigger plastic strain can take place in the collision process alleviate the impact kinetic energy of automobile part; and can force automobile out of control to change the direction of motion; thereby protection collision vehicle; reduce the personal safety hidden danger of driver and crew in the car; belong to this class guardrail exactly as the present widely used corrugated sheet steel anticollision barrier of China; therefore; it is a kind of anticollision barrier that is most widely used at present; though this guardrail has been alleviated the part impact kinetic energy of automobile by the distortion of corrugated sheet steel when vehicle collides; but; it is still very big to rigidity reaction force that vehicle forms, and when the vehicle of particularly running at high speed meets accident collision, still is sizable to the infringement of driver and crew in the car and vehicle.

Summary of the invention

The purpose of this utility model provides a kind of anticollision barrier that overcomes above-mentioned shortcoming, and when bump took place vehicle, anticollision barrier of the present utility model can absorb the impact kinetic energy of vehicle effectively, decomposes the impact force that vehicle is formed.

To achieve these goals, the anticollision barrier with energy absorption device of the present utility model can comprise: guardrail board; The guardrail basis, described guardrail basis is provided with spring energy-absorbing assembly.

Described spring energy-absorbing assembly may further include: the drum that is used for mounting spring; Cover a cap that has gathering sill on the part of described spring; Described cap can slide along the inwall of described drum and compress described spring; Have the V-arrangement guiding element of bending with two ends, the described bending of an end of described V-arrangement guiding element is used to install described guardrail board, and the described bending of the other end is fixed on the described guardrail basis, and one of them support arm of described V-arrangement guiding element is placed in the described gathering sill.

In the technical program, described support arm and described gathering sill along continuous straight runs are an angle, and described angle is preferably 30～60 degree.

In the technical program, the described support arm that is placed in the described gathering sill makes described spring be in compressive state.

In the technical program, dispose dust ring between described drum and the described cap.

Usefulness of the present utility model is: the utility model is by guardrail board; Guardrail basis and spring energy-absorbing assembly are formed, according to the momentum theorem in the physics: under identical collision mass and speed, prolong collision time and can reduce impact force, according to another the resolution of forces principle in the mechanics, vehicle collision anticollision barrier of the present utility model takes place after, vehicle conducts to cap by the V-arrangement guiding element the impact force of guardrail board, cap compression pillar shaped helical spring also produces a displacement in drum, consumed the bump kinetic energy of vehicle, make guardrail board produce the effect that retreats and cushion, prolonged the time of vehicle collision guardrail board, reduced the reaction force of guardrail board vehicle; In addition, be positioned over that along continuous straight runs is an angle between support arm on the cap gathering sill and the gathering sill on the cap, this angle has been decomposed most of cap and has been conducted the power of reaction on vehicle to the V-arrangement guiding element, and this active force is near a constant, so the collision dynamics characteristic of further guaranteeing vehicle is near desirable impact curve, like this, energy absorption at the energy-absorbing assembly, under the acting in conjunction of the plastic strain energy-absorbing of effect resolution of forces and guardrail board and V-arrangement guiding element, can ensure the driver and crew's safety in the accident vehicle effectively, reduce the damage degree of vehicle.Another characteristics of the present utility model are that its particular structure is not is not occupied effective road surface, and have alleviated the damage of vehicle collision to the guardrail basis, are convenient to quick maintenance.

Description of drawings

Above-mentioned and other characteristic of the present utility model and the advantage exemplary embodiment shown in will be with reference to the accompanying drawings is described, and therefore can become more clear.

Fig. 1 shows the schematic diagram of exemplary embodiment of the present utility model;

Fig. 2 shows the generalized section that is installed on the energy-absorbing assembly on the guardrail basis;

Fig. 3 shows that the master who is installed on the energy-absorbing assembly on the guardrail basis looks schematic diagram;

Fig. 4 shows the schematic top plan view that is installed on the energy-absorbing assembly on the guardrail basis;

Fig. 5 shows the schematic diagram of gathering sill on the cap;

Fig. 6 shows the stressed decomposing schematic representation of the energy-absorbing assembly in this exemplary embodiment.

In the accompanying drawings, identical label is represented identical parts, parts and structure.

The specific embodiment

Hereinafter, in conjunction with the accompanying drawings exemplary embodiment of the present utility model is done detailed description.

Fig. 1 shows the schematic diagram of exemplary embodiment of the present utility model, Fig. 2 shows the generalized section that is installed on the energy-absorbing assembly on the guardrail basis, Fig. 3 shows that the master who is installed on the energy-absorbing assembly on the guardrail basis looks schematic diagram, Fig. 4 shows the schematic top plan view that is installed on the energy-absorbing assembly on the guardrail basis, and Fig. 5 shows the schematic diagram of gathering sill on the cap.

Referring to Fig. 1 to Fig. 5, in this exemplary embodiment, the anticollision barrier 60 with energy absorption device can comprise: guardrail board 61; Guardrail basis 62, guardrail basis 62 is formed in the roadbed, it can be with roadbed under built-in fitting be fixedly connected to form, also can directly be formed on the roadbed, guardrail basis 62 can use rigid material to make, also can be concrete prefabricated or cast-in-place making, further be provided with the spring energy-absorbing assembly 70 of spring 71 on the guardrail basis 62.

Spring energy-absorbing assembly 70 may further include: drum 72; The bottom of drum 72 is equipped with spring 71, and drum 72 can be formed in the guardrail basis 62, and drum 72 can use rigid material to make, and spring 71 can be a cylindroid helical-coil compression spring.

Be covered with the cap 73 that has gathering sill 73a on the part of spring 71, cap 73 can slide along the inwall of drum 72 and compression spring 71, and cap 73 can use rigid material to make;

One end has the V-arrangement guiding element 74 that the first bending 74a and the other end have the second bending 74b, one of them support arm 74d of V-arrangement guiding element 74 is placed among the gathering sill 73a of cap 73, support arm 74d and gathering sill 73a are the α angle with respect to horizon, big or small preferred 30～60 degree at α angle, the first bending 74a of V-arrangement guiding element 74 is by installing hole 74c fixed installation guardrail board 61, and the second bending 74b of V-arrangement guiding element 74 can be fixed on the guardrail basis 62 by bolt 75; At this moment, support arm 74d can bring some pressure to bear through 73 pairs of springs 71 of cap, makes spring 71 be in the state of pressurized, is in the monolithic stability state to guarantee spring energy-absorbing assembly 70.Certainly, the utility model also can not make spring 71 be in the state of pressurized.

Can dispose dust ring 76 between drum 72 and the cap 73, drop in the drum 72 to prevent rainwater and dirt.

As further improvement of the utility model, V-arrangement guiding element 74 also can directly be fixed in support arm 74d among the gathering sill 73a of cap 73, thereby saves the second bending 74b.

The operating principle of this exemplary embodiment is described below.

Fig. 6 shows the stressed decomposing schematic representation of the energy-absorbing assembly in this exemplary embodiment, referring to Fig. 1 to Fig. 6, after vehicle collision anticollision barrier 60 of the present utility model, vehicle is given cap 73 to the impact force F of guardrail board 61 by 74 conduction of V-arrangement guiding element, cap 73 moves down at the inwall 72a of the effect lower edge of impact force F drum 72, compression cylindroid helical-coil compression spring 71 also makes it produce a displacement drum 72 in, and according to the momentum theorem in the physics: the prolongation collision time can reduce impact force under identical collision mass and speed.So in the compression process of cylindroid helical-coil compression spring 71, guardrail board 61 has produced the effect that retreats and cushion, and has prolonged vehicle and has acted on action time on the guardrail board 61, has consumed the bump kinetic energy of vehicle, therefore, reduced collision (reaction) power of 61 pairs of vehicles of guardrail board; In addition, according to mechanics principle, along continuous straight runs is a α angle between support arm 74d on the cap 73 gathering sill 73a and the gathering sill 73a on the cap 73 owing to be positioned over, this α angle makes cap 73 conduction obtain decomposition for the reaction force on the V-arrangement guiding element 74d, the component F1 of vertical direction and the component F2 of horizontal direction have been formed, the F ' that makes a concerted effort to be of F1 and F2, F '=F in theory, so, horizontal component F2 is significantly smaller than F, horizontal component F2 on the V-arrangement guiding element 74d gives guardrail board 61 through 74 conduction of V-arrangement guiding element, therefore, when Vehicular impact guardrail board 61, the reaction force (based on F2) of 61 pairs of vehicles of guardrail board will be significantly smaller than the power of Vehicular impact guardrail board 61, has protected the safety of vehicle effectively; In addition, because horizontal component F2 is approaching to be a constant, therefore, it also is a constant basically that guardrail board 61 is given the reaction force of vehicle, so the collision dynamics characteristic of further guaranteeing vehicle is near desirable impact curve, out of hand when avoiding collision happens, like this, under the acting in conjunction of the plastic strain energy-absorbing of the energy absorption of energy-absorbing assembly 70, effect resolution of forces and guardrail board 61 and V-arrangement guiding element 74, can ensure the driver and crew's safety in the accident vehicle effectively, reduce the damage degree of vehicle.

In sum, the utility model is by guardrail board; Guardrail basis and spring energy-absorbing assembly are formed, vehicle collision anticollision barrier of the present utility model takes place after, vehicle conducts to cap by the V-arrangement guiding element the impact force of guardrail board, cap compression pillar shaped helical spring also produces a displacement in drum, consumed the bump kinetic energy of vehicle, make guardrail board produce the effect that retreats and cushion, prolonged the time of vehicle collision guardrail board, reduced the reaction force of guardrail board vehicle; In addition, be positioned over that along continuous straight runs is an angle between support arm on the cap gathering sill and the gathering sill on the cap, this angle has been decomposed most of cap and has been conducted to the V-arrangement guiding element and act on reaction force on the vehicle, and this active force is near a constant, so the collision dynamics characteristic of further guaranteeing vehicle is near desirable impact curve, like this, energy absorption at the energy-absorbing assembly, under the acting in conjunction of the plastic strain energy-absorbing of effect resolution of forces and guardrail board and V-arrangement guiding element, can ensure the driver and crew's safety in the accident vehicle effectively, reduce the damage degree of vehicle; Have, another advantage of the present utility model is that its particular structure is not is not occupied effective road surface, and has alleviated the damage of vehicle collision to the guardrail basis, is convenient to quick maintenance again.

Technology of the present utility model can be widely used in the crashproof enforcement of various highways and road.

Exemplary embodiment that the utility model is above-mentioned and advantage only are typical examples, and it can not be considered as restriction of the present utility model.Description to the utility model exemplary embodiment is the scope that is used to illustrate rather than limit claim, and to those skilled in the art, clearly, the utility model also can be made multiple changes and improvements.

Claims

1. the anticollision barrier with energy absorption device comprises: the guardrail basis; Be installed in the column on described guardrail basis; Guardrail board with being installed on the described column is characterized in that, described guardrail basis is provided with spring energy-absorbing assembly, and described spring energy-absorbing assembly further comprises the drum that is used for mounting spring; Cover a cap that has gathering sill on the part of described spring; Described cap can slide along the inwall of described drum and compress described spring; Have the V-arrangement guiding element of bending with two ends, the described bending of an end of described V-arrangement guiding element is used to install described guardrail board, and the described bending of the other end is fixed on the described guardrail basis, and one of them support arm of described V-arrangement guiding element is placed in the described gathering sill.

2. by the described energy-absorption type anticollision barrier of claim 1, it is characterized in that described support arm and described gathering sill along continuous straight runs are an angle.

3. by the described energy-absorption type anticollision barrier of claim 2, it is characterized in that described angle is 30～60 degree.

4. by the described energy-absorption type anticollision barrier of claim 1, it is characterized in that the described support arm that is placed in the described gathering sill makes described spring be in compressive state.

5. by the described energy-absorption type anticollision barrier of claim 1, it is characterized in that, dispose dust ring between described drum and the described cap.