CN209987881U

CN209987881U - Automobile collision buffer device

Info

Publication number: CN209987881U
Application number: CN201920338845.XU
Authority: CN
Inventors: 吴博; 张文凯; 张烁
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-01-24
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a car collision buffer contains: the energy-absorbing device comprises a foam arch plate (1), a bumper (2), a steel plate spring (31), a first energy-absorbing device (51) of a spring link mechanism, a second energy-absorbing device (52) and a mounting bottom plate (6). When the automobile collides, the foam arch plate receives energy to deform, and plays a role in first buffering, and when the energy generated by collision is transmitted to the front bumper, the steel plate spring plays a role in supporting the bumper and plays a role in second buffering for the collision. An energy absorption device is arranged behind the bumper to play a role in buffering for three times. The utility model discloses a car collision buffer can bear the impact that the car front end comes from all directions, when the car received serious collision, can carry out the cubic buffering, has solved traditional car bumper atress direction singleness, the unsatisfactory problem of energy-absorbing effect. The collision capacity of the automobile is improved, the collision speed is reduced, and higher safety guarantee is provided.

Description

Automobile collision buffer device

Technical Field

The invention provides an automobile collision buffer device, and belongs to the technical field of automobile protection devices.

Background

Automobiles have long become a very relevant vehicle in people's lives because of their convenience and rapidness. In recent years, along with the improvement of the living standard of people, the possession of automobiles is continuously improved. However, motor vehicle traffic accidents also show an increasing trend year by year. Along with the continuous development of the automobile industry, the automobile driving speed is faster and faster, the collision angle of the automobile has high randomness, the traditional automobile bumper mainly deals with the frontal collision of the automobile, when the automobile bumper is collided at a certain angle, the head of the automobile is seriously deformed by huge inertia force, the automobile is seriously damaged, and the energy absorption effect is unsatisfactory. The traditional bumper can not meet the requirement of automobile safety in high-speed collision, so that a buffer device which can reduce the acceleration in collision, enhance the buffer capacity in collision, meet collision force at a large angle and absorb collision energy is needed, and the device can protect personnel in an automobile and protect the appearance of the automobile as much as possible.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the automobile collision buffering and energy absorbing device which can effectively play roles of buffering and energy absorbing when the front end of an automobile collides at any angle, greatly weaken the collision and play a good role of protecting an automobile body and personnel in the automobile.

To achieve the above object, the present invention provides an automobile collision buffer device. A collision buffer device for car is composed of foam arch plate 1, bumper 2, steel plate spring 31, spring linkage mechanism, the first energy absorber 51, the second energy absorber 52 and installation bottom plate 6.

The utility model provides an automobile collision buffer, foam arch bar 1 the outside be the arc, the inboard is connected with bumper 2, the material of using can adopt engineering foam.

A bumper 2 is made of aluminum alloy through integral forming and processing, and the cross section of the bumper is wavy.

A car collision buffer device, leaf spring 31 link to each other with 2 inboards in the bumper, by 3 to 4 leaf springs constitution, quantity is 2, the symmetrical arrangement is in the 2 both sides depressed place in the bumper.

A vehicle crash cushion, said first energy absorbing means comprising: the first energy absorbing cylinder 512, the first energy absorbing cylinder housing 513, the first buffer spring 511 and the limit key 514. The first energy absorption cylinder shell 513 is provided with a positioning bolt hole which is connected with the mounting bottom plate 6 through a bolt, the first energy absorption cylinder 512 is connected with the bumper 2, and the first energy absorption cylinder shell 513 is provided with a limit key 514 which limits the rotation stroke of the first energy absorption cylinder shell 513.

A vehicle crash cushion assembly, said spring linkage comprising: the connecting seat 32, the buffer rubber block 33, the connecting rod 41, the sliding block 42, the first base 43 and the second buffer spring 44; a second base 45, a slide rail 46 and a third base 47. Wherein the connecting base 32 is connected with the lower side of the steel plate spring 31; the buffer rubber block 33 is connected with the connecting seat 32; the first base 43, the second base 45 and the third base 47 are all connected with the mounting bottom plate 6; the link 41 is connected to the slider 42 and the connecting seat 32 in a bolt manner. Slide rails 46 are arranged between the first base 43 and the second base 45 and between the first base 43 and the third base 47.

A collision buffer device for an automobile comprises a second energy absorption cylinder 521, a second energy absorption cylinder shell 522, a mounting plate 524, a third buffer spring 523, a telescopic column 525, a damping spring 526 and a limit handle pin 527. Wherein the second energy-absorbing cylinder shell 522 is connected with the bumper 2, and the second energy-absorbing cylinder 521 is connected with the second base 45; the telescopic columns 525 and the damping springs 526 are symmetrically distributed on two sides of the second energy-absorbing cylinder shell 522 and are respectively connected with the mounting plates 524, and the number of the telescopic columns is 4; the limit handle pins 527 are arranged between the telescopic columns 525 on the two sides, are also distributed symmetrically, and have the number of 2.

The effective benefits of the automobile collision buffer device used by the invention are as follows: the front end of the automobile bumper is additionally provided with the arc-shaped foam arch plate, the rear part of the automobile bumper is provided with the energy absorption device, and the rear part of the steel plate spring is provided with the spring connecting rod mechanism, so that the energy absorption capacity of the front end of the automobile for coping with the collision at any angle is improved when the automobile collides, the acceleration of the automobile during the collision can be reduced, and the safety of personnel in the automobile can be better protected.

Drawings

Fig. 1 is a general structural view of a collision buffer apparatus for an automobile.

Fig. 2 is a first bumper of a vehicle crash cushion.

Fig. 3 is a second impact absorption diagram of a vehicle crash absorption device.

In the drawings: 1-a foam arch bar, 2-a bumper, 31-a steel plate spring, 32-a connecting seat, 33-a buffer rubber block, 41-a connecting rod and 42-a sliding block; 43-a first base, 44-a second buffer spring, 45-a second base, 46-a sliding rail, 47-a third base, 51-a first energy absorption device, 52-a second energy absorption device, 511-a first buffer spring, 512-a first energy absorption cylinder, 513-a first energy absorption cylinder shell, 514-a limit key, 521-a second energy absorption cylinder, 522-a second energy absorption cylinder shell, 523-a third buffer spring, 524-a mounting plate, 525-a telescopic column, 526-a shock absorption spring and 527-a limit handle pin.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to the embodiment shown in fig. 1, 2 and 3, the automobile collision buffer device comprises a foam arch 1, a bumper 2, a steel plate spring 31, a spring link mechanism, a first energy absorber 51, a second energy absorber 52, a mounting base plate 6 and the like.

Referring to fig. 1 and 2, the foam arch bar 1 is installed outside the bumper 2, and the number of the leaf springs 31 is 2, and the leaf springs are composed of 3 to 4 leaf springs and symmetrically arranged at the concave parts at the two sides of the bumper 2; the number of the first energy absorbing devices 51 is 2, the first energy absorbing devices are symmetrically arranged at two ends in the bumper 2 and are connected with the bumper 2 and the third base 47 through bolts; and a limiting key 514 is arranged on the first energy absorbing cylinder shell 513 to limit the rotation stroke of the first energy absorbing cylinder shell 513.

Referring to fig. 1 and 3, the second energy absorbing device is installed at the symmetry axis of the bumper 2, the second energy absorbing cylinder shell 522 is installed on the installation plate with the cylinder opening facing downward, one end of the second energy absorbing cylinder 522 is connected with the second base 45, the installation plate 524 is connected with the inner side of the bumper 2, the telescopic columns 525 and the damping springs 526 are symmetrically distributed on two sides of the second energy absorbing cylinder shell 522, the telescopic columns are respectively connected with the installation plate 524, the number of the telescopic columns is 4, and the limit handle pins 527 are arranged between the telescopic columns 525 on the two sides, and are also symmetrically distributed, and the number of the limit handle pins 527 is 2.

Referring to fig. 1, the number of the spring linkage mechanisms is 2, the spring linkage mechanisms are symmetrically arranged at the lower sides of the two side leaf springs 31,

the connecting seat 32 is connected with the lower side of the steel plate spring 31, and the buffer rubber block 33 is connected with the connecting seat 32; the first base 43, the second base 45 and the third base 47 are all connected with the mounting bottom plate 6; the link 41 is connected to the slider 42 and the connecting seat 32 in a bolt manner. Slide rails 46 are arranged between the first base 43 and the second base 45 and between the first base 43 and the third base 47.

The section of the foam arch bar 1 shown in the attached figure 1 is arc-shaped, and the used material is engineering foam plastic.

The section of the bumper 2 shown in the attached figure 1 is wave-like, and the used material is aluminum alloy.

The mounting base plate 6 shown in fig. 1 is symmetrically provided with a first base 43, a second base 45 and a third base 47.

Specifically, when an automobile collides, firstly, the foam arch plate 1 bears the collision force to deform, absorbs energy, plays a role in first buffering, and transmits the energy to the bumper 2, the bumper 2 transmits the energy generated by the collision to the steel plate spring 31, the steel plate spring 31 is stressed and deformed, absorbs the energy, plays a role in second buffering, generates downward displacement, and transmits the energy to the spring link mechanism, and meanwhile, the first energy absorption device 51, the second energy absorption device 52 and the spring link mechanism are compressed simultaneously, so that most of the collision energy is absorbed, and a third buffering function is played; when the impact force is too large, the first energy-absorbing cylinder 512 and the second energy-absorbing cylinder 521 reach the maximum stroke, and the buffer rubber block 33 is in contact with the first base 43, so that the function of a protection device is achieved. When the foam arch plate 1 and the bumper 2 are collided at a certain angle, the first energy absorption device 51 and the second energy absorption device 52 deflect correspondingly, the rotation stroke of the first energy absorption device 51 is controlled by the limit key 514, the stroke of the second energy absorption device 52 is controlled by the telescopic column 525, the damping spring 526 and the limit handle pin 527, and the damping spring 526 provides a damping effect at the same time. When the external force is removed, the bumper 2, the leaf spring 31, the first energy absorber 51, the second energy absorber 52, and the spring link mechanism can be restored to the original state in the case of the reaction force. The foam arch plate 1 can be replaced independently if damaged.

Claims

1. An automotive crash cushion, comprising: the energy-absorbing structure comprises a foam arch plate (1), a bumper (2), a steel plate spring (31), a first energy-absorbing device (51), a second energy-absorbing device (52), a spring linkage mechanism and a mounting base plate (6).

2. The vehicle crash cushion of claim 1, wherein: the outer side of the foam arch bar (1) is arc-shaped, and the inner side of the foam arch bar is connected with the bumper (2); the material of the foam arch plate (1) can adopt engineering foam plastics; the bumper (2) is integrally formed and machined from aluminum alloy; the cross section of the bumper (2) is wave-like, the steel plate springs (31) are connected with the inner side of the bumper (2), are composed of 3 to 4 spring pieces, are 2 in number and are symmetrically arranged at the concave parts at the two sides of the bumper (2); the first energy absorbing device comprises: the device comprises a first energy absorption cylinder (512), a first energy absorption cylinder shell (513), a first buffer spring (511) and a limit key (514).

3. The vehicle crash cushion of claim 2, wherein: the first energy absorption cylinder shell (513) is provided with a positioning bolt hole and is connected with the mounting bottom plate (6) through a bolt; a limit key (514) is arranged on the first energy absorption cylinder shell (513) to limit the rotation stroke of the first energy absorption cylinder shell (513); the first energy absorption cylinder (512) is connected with the bumper (2).

4. A vehicle crash cushion according to claim 3, wherein: the spring link mechanism includes: the buffer device comprises a connecting seat (32), a buffer rubber block (33), a connecting rod (41), a sliding block (42), a first base (43) and a second buffer spring (44); a second base (45), a slide rail (46) and a third base (47).

5. The vehicle crash cushion of claim 4, wherein: the connecting seat (32) is connected with the inner side of the steel plate spring (31); the buffer rubber block (33) is connected with the connecting seat; the first base (43) and the second base (45) are connected with the mounting bottom plate (6); the connecting rod (41) is connected with the sliding block (42) and the connecting seat (32) in a bolt mode; slide rails (46) are arranged between the first base (43) and the second base (45) and between the first base (43) and the third base (47).

6. The vehicle crash cushion of claim 1, wherein: the second energy absorption device comprises a second energy absorption barrel (521), a second energy absorption barrel shell (522), a mounting plate (524), a third buffer spring (523), a telescopic column (525), a damping spring (526) and a limit handle pin (527).

7. The vehicle crash cushion of claim 6, wherein: the second energy-absorbing cylinder shell (522) is connected with the bumper (2), and the second energy-absorbing cylinder (521) is connected with the second base (45); the telescopic columns (525) and the damping springs (526) are symmetrically distributed on two sides of the second energy-absorbing cylinder shell (522) and are respectively connected with the mounting plates (524), and the number of the telescopic columns and the damping springs is 4; the limit handle pins (527) are arranged between the telescopic columns (525) on the two sides and are also symmetrically distributed, and the number of the limit handle pins is 2.