CN212332574U

CN212332574U - Automobile collision buffer device

Info

Publication number: CN212332574U
Application number: CN202022004858.9U
Authority: CN
Inventors: 吴博; 雷宇; 吴飞
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-01-12
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to a car collision buffer. The device includes: the anti-collision beam comprises an anti-collision beam main body (1), a buffer rubber block (2), a first energy absorption device (3) of a connecting rod spring mechanism, a second energy absorption device (4) and a mounting base plate (7). When the automobile collides, the anti-collision beam main body receives energy deformation and plays a role in buffering for the first time. When energy generated by collision is transmitted to the long end of the I-shaped rod of the first energy absorption device through the buffer rubber block, the buffer spring in the installation box connected with the short end of the I-shaped rod absorbs the energy to play a role of secondary buffering. The upper end of the I-shaped rod can be pressed down by receiving energy and can act together with the second energy absorption devices arranged at the two ends to play a role in buffering for the third time. The utility model discloses a car collision buffer can carry out the cubic buffering when the car takes place the serious collision, improves the crashworthiness of car, reduces collision speed, effectively protects personnel in the car.

Description

Automobile collision buffer device

Technical Field

The utility model provides a car collision buffer, especially a car collision energy-absorbing device.

Background

With the increasing of automobile reserves and the improving of road traffic facilities in China, the driving speed of automobiles is increased continuously, so that the number of traffic accidents, casualties and economic losses of automobiles are increased year by year. Therefore, the safety protection of the automobile during driving is more and more emphasized. The current vehicle protective structure can not satisfy the requirement of car safety under high-speed collision, and huge inertial force can make the locomotive take place serious deformation. Therefore, a more reliable automobile collision energy absorption device capable of enhancing the collision energy absorption capacity and reducing the vehicle body collision acceleration is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the not enough problem that above-mentioned prior art exists, the utility model aims at providing an automobile collision buffer, the device can strengthen energy-absorbing capacity when the automobile collision, reduce acceleration, effectual protection car interior passenger when the automobile body collides.

In order to achieve the above object, the utility model provides an automobile collision buffer device. An automobile collision buffer device comprises an anti-collision beam main body, a buffer rubber block, a first energy absorption device of a connecting rod spring mechanism, a second energy absorption device, a mounting base plate and the like.

A first energy absorption device of an automobile collision buffer device comprises an I-shaped rod, an energy absorption box and a buffer spring. The energy absorbing device is provided with a central position which is arranged above the bottom plate. The energy absorption box is internally provided with a buffer spring, and the outer side of the energy absorption box is provided with an I-shaped rod.

The second energy absorber comprises a buffer cylinder, a compression spring, a piston mandril and a piston rod. The energy absorption device has two energy absorption devices which are symmetrically arranged on two sides above the bottom plate. The buffer cylinder is internally provided with a compression spring and a piston ejector rod, piston rods are symmetrically arranged on two sides of the buffer cylinder, and the piston rods are connected with the piston ejector rod in the cylinder.

A buffer rubber block is arranged behind an anti-collision beam main body, and 3-6 buffer springs are arranged in the buffer rubber block.

The automobile collision buffer device is characterized in that the I-shaped rod is connected with a buffer rubber block and a buffer spring in an energy absorption box.

The cross sections of the shell of the buffer cylinder, the piston mandril and the piston rod are circular.

The utility model discloses use a car collision buffer's effective income is: and a buffer rubber block and an energy absorption device are arranged behind the main body of the anti-collision beam. The utility model has the advantages of the I-shaped pole is used for connecting buffering rubber piece and buffering energy-absorbing device, has so both strengthened the energy-absorbing ability when the car collides, has reduced the acceleration when the automobile body collides again, can also effectual protection passenger in the car.

Drawings

Fig. 1 is a general structural view of a vehicle crash cushion.

Fig. 2 is a structural view of a cushion rubber block of the automobile crash cushion.

FIG. 3 is a schematic view of a first energy absorption unit of the vehicle crash cushion.

FIG. 4 is a schematic view of a second energy absorption bumper system of the vehicle crash cushion.

In the drawings: 1-an anti-collision beam main body 2-a buffer rubber block 3-a first buffer energy absorption device 101-a I-shaped rod 102-an energy absorption box 4-a second buffer energy absorption device 5-a compression spring 6-a buffer spring 7-a mounting bottom plate 103-a buffer cylinder 104-a piston ejector rod 105-a piston rod 106-a buffer rubber block 107-a buffer spring

Detailed Description

In order to fully explain the technical solution of the present invention, the following description is made with reference to the accompanying drawings.

Referring to the embodiment shown in the attached

drawings

1, 2, 3 and 4, the automobile collision buffer device comprises a collision beam main body 1, a buffer rubber block 2, a connecting rod spring mechanism first energy absorption device 3, a second energy absorption device 4 and a mounting base plate 7, wherein one first buffer energy absorption device 3 is arranged at the central position on the base plate, two second buffer energy absorption devices 4 are symmetrically arranged at the left side and the right side of the base plate, and piston rods 105 of the second buffer energy absorption devices are flush with the edge of an I-shaped rod 101 in the vertical direction.

The cushion rubber block 2 shown in figure 2 is arranged behind the main body 1 of the anti-collision beam, 3-6 cushion springs 107 are arranged in the cushion rubber block 106, and the rear end of the cushion rubber block 2 is connected with the long end of the I-shaped rod 101.

The first energy-absorbing buffer device 3 shown in fig. 3 comprises a I-shaped rod 101, an energy-absorbing box 102 and a buffer spring 6. The energy absorption box 102 is internally provided with a buffer spring 6, the long end of the I-shaped rod 101 is connected with the buffer rubber block 2, and the short end of the I-shaped rod is connected with the buffer spring 6.

The second energy-absorbing buffer device 4 shown in FIG. 4 comprises a buffer cylinder 103, a piston top rod 104, a piston rod 105 and a compression spring 5. The compression spring 5 and the piston mandril 104 are arranged in the buffer cylinder 103, piston rods 105 are symmetrically arranged on two sides of the upper end of the buffer cylinder 103, and the piston rods 105 are connected with the piston mandril 104.

The cross section of the buffer cylinder 103, the piston rod 104 and the piston rod 105 shown in fig. 4 is circular.

Specifically, after the automobile is collided, the anti-collision beam main body 1 at the front end of the automobile is stressed to deform, so that the anti-collision beam main body has a buffering effect on the collision, the buffering rubber block 2 is extruded due to the deformation of the anti-collision beam main body 1, the long end 101 of the I-shaped rod extruded by the buffering rubber block 2 is pushed by the external force of the anti-collision beam main body to move backwards, so that the short end of the I-shaped rod 101 installed in the energy absorption box 102 extrudes the buffering spring 6, the acceleration during the collision is reduced, and the buffering effect is. Meanwhile, the I-shaped rod 101 can contact with the piston rod 105 on the buffer cylinder 103 when moving backwards, the piston rod 105 can push the piston mandril 104 to move backwards to extrude the compression spring 5 in the buffer cylinder 103 after being stressed, and the collision is buffered again, so that the personnel in the vehicle can be ensured more safely. After the external force is eliminated, the main body 1 of the anti-collision beam, the buffer rubber block 2, the buffer energy absorption device 3 and the buffer energy absorption device 4 can be restored to the initial state under the condition of the reaction force.

Claims

1. An automobile collision buffer device is characterized in that: the anti-collision device comprises an anti-collision beam main body, a buffer rubber block, a first energy absorption device of a connecting rod spring mechanism, a second energy absorption device and an installation bottom plate, wherein the first energy absorption device comprises an I-shaped rod, an energy absorption box and a buffer spring; the second energy absorption device comprises a buffer cylinder, a compression spring, a piston ejector rod and a piston rod, and the buffer rubber block is internally provided with a buffer spring.

2. The automobile crash cushion according to claim 1, characterized in that: the energy absorption device is provided with two groups, one group is arranged at the central position, and the other group is symmetrically arranged at two sides.

3. The automobile crash cushion according to claim 1, characterized in that: the rear of the main body of the anti-collision beam is connected with a buffer rubber block, and 3-6 buffer springs are arranged in the buffer rubber block.

4. The automobile crash cushion according to claim 1, characterized in that: the energy absorption box is arranged at the center of the upper surface of the mounting bottom plate, a buffer spring is arranged in the energy absorption box, and the I-shaped rod is connected with the buffer rubber block and the buffer spring in the box.

5. The automobile crash cushion according to claim 1, characterized in that: the mounting base plate on the left and right sides installation buffer cylinder, the buffer cylinder in install compression spring and piston ejector pin, the buffer cylinder outside both sides symmetry installation piston rod, the piston rod link to each other with a section of thick bamboo interior piston ejector pin.