CN111959421A

CN111959421A - Bumper with buffering shock-absorbing function

Info

Publication number: CN111959421A
Application number: CN202010826657.9A
Authority: CN
Inventors: 于学华; 翟豪瑞; 石小龙; 熊新; 蔡一正
Original assignee: Yancheng Institute of Technology
Current assignee: Yancheng Institute of Technology
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2020-11-20

Abstract

The invention discloses a bumper with buffering and damping functions, which comprises a bumper body, a protective plate, a cross beam, a fixing bolt, a first damping spring, a first buffer block, a second buffer block, a buffer plate, a guide rod, a second damping spring and a third damping spring. According to the bumper, the protection plate, the buffer plate and the cross beam are additionally arranged, and the plurality of groups of damping springs are arranged between the protection plate and the buffer plate and between the buffer plate and the cross beam, so that the strength of the bumper is effectively enhanced, and meanwhile, a buffering effect can be well played.

Description

Bumper with buffering shock-absorbing function

Technical Field

The invention relates to the technical field of automobiles, in particular to a bumper with a buffering and shock-absorbing function.

Background

In recent years, automobiles enter thousands of households in China, the automobile conservation amount is increased, accompanying automobile traffic accidents are also in an ascending trend, and through analysis and summarization of a large number of traffic accidents, the result shows that front and rear bumpers of the automobiles are most easily damaged by collision and are also the reasons for close attention of automobile manufacturers and development of novel bumpers, the automobile bumpers are installed at the foremost end and the rearmost section of the automobiles and play a vital role in the modeling style of the whole automobiles, the artistic style of the decoration of the whole automobiles can be interpreted, the bumpers serve as safety protection devices and are important constituent parts of the structure of the modern automobiles, and the casualty degree of people and the damage degree of the automobiles can be effectively reduced. The automobile bumper is a safety device for absorbing and relieving external impact force and protecting the front part and the rear part of an automobile body. The existing automobile bumper is generally of an arc-shaped shell structure which is formed by stamping a steel plate, and the bumper absorbs collision energy by deformation in a collision process, so that the bumper has a buffering and damping effect to protect the life safety of people in the automobile.

The existing automobile bumper is rigidly connected with an automobile, so that the automobile bumper is easy to damage in collision, the impact resistance of the automobile bumper is low, the collision force is difficult to be reduced to the minimum, the personal and property safety of personnel in the automobile is difficult to be guaranteed, and the driving reliability of the automobile is greatly reduced; meanwhile, the bumper with the buffer structure in the prior art has a simple main body structure, can realize small buffer and external impact resistance when the bumper slightly collides, has weak impact resistance and poor buffer effect when the bumper greatly collides, and is unsafe to use, so that an effective scheme needs to be provided to solve the problems.

Disclosure of Invention

The invention aims to provide a bumper with a buffering and shock-absorbing function, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a bumper with buffering and shock-absorbing functions comprises a bumper body, a protective plate, a cross beam, a fixing bolt, a first shock-absorbing spring, a first buffer block, a second buffer block, a buffer plate, a guide rod, a second shock-absorbing spring and a third shock-absorbing spring, wherein the protective plate is arranged above the bumper body, the bumper body and the protective plate are both in a convex structure, the cross beam is arranged below the bumper body, two ends of the bumper body are fixedly connected with the cross beam through the fixing bolt, the fixing bolt is sleeved with the first shock-absorbing spring, the first shock-absorbing spring is arranged between the bumper body and the cross beam, the first buffer block is arranged in the middle of the lower surface of the bumper body, the second buffer block is arranged in the middle of the upper surface of the cross beam, the buffer plate is arranged between the first buffer block and the second buffer block, the upper end of the guide rod is arranged below the first buffer block, the lower end of the guide rod penetrates through the buffer plate and is arranged above the second buffer block, two groups of second damping springs are arranged between the bumper body and the buffer plate, and two groups of third damping springs are arranged between the buffer plate and the cross beam.

Preferably, the lower end of the fixing bolt penetrates through the protection plate, the bumper body and the cross beam in sequence and is in threaded connection with the fixing nut, and the fixing nut is arranged below the cross beam.

Preferably, the upper part and the lower part of the guide rod are both sleeved with fourth damping springs.

Preferably, the second damping spring is arranged on two sides of the first buffer block.

Preferably, the third damping spring is arranged on two sides of the second buffer block.

Preferably, the lower surface both sides of buffer board, the crossbeam correspond the upper surface of buffer board department and all are equipped with the third buffer block, the third buffer block is located the guide bar both sides.

Preferably, the first buffer block, the second buffer block and the third buffer block are made of rubber materials.

Preferably, the shield plate is made of chrome steel or manganese steel.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the bumper, the protection plate, the buffer plate and the cross beam are additionally arranged, and the plurality of groups of damping springs are arranged between the protection plate and the buffer plate and between the buffer plate and the cross beam, so that the strength of the bumper is effectively enhanced, and meanwhile, a buffering effect can be well played.

(2) According to the invention, the fixing bolt is arranged between the protection plate and the cross beam to be matched with the first damping spring, when the protection plate and the cross beam are collided, the first damping springs at two ends slide along the fixing bolt to compress the first damping springs, and kinetic energy is converted into elastic potential energy, so that the destructive force of collision is reduced, and the buffering effect is good.

(3) According to the invention, the guide rod is arranged between the protection plate and the buffer plate and is matched with the fourth damping spring, so that when the protection plate is under pressure, the buffer plate can buffer through the guide rod and the fourth damping spring, and therefore, when the fourth damping spring is pressed to the lowest, the buffer plate plays a supporting role on the protection plate.

(4) According to the invention, the bumper body, the buffer plate and the cross beam are provided with the plurality of groups of buffer blocks, so that the buffer capacity of the bumper is enhanced, and the effect of buffering and energy absorption of the bumper is better realized.

Drawings

Fig. 1 is an overall structure view of a bumper.

In the figure: 1-a bumper body; 2-protection plate; 3-a cross beam; 4-fixing the bolt; 5-a first damping spring; 6-a first buffer block; 7-a second buffer block; 8-a buffer plate; 9-a guide rod; 10-a second damping spring; 11-a third damping spring; 12-a fixing nut; 13-a fourth damping spring; 14-third buffer block.

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.

Referring to fig. 1, the present invention provides a technical solution: a bumper with buffering and damping functions comprises a bumper body 1, a protection plate 2, a cross beam 3, a fixing bolt 4, a first damping spring 5, a first buffer block 6, a second buffer block 7, a buffer plate 8, a guide rod 9, a second damping spring 10 and a third damping spring 11, wherein the protection plate 2 is arranged above the bumper body 1, the protection plate 2 is made of chrome steel or manganese steel, the bumper body 1 and the protection plate 2 are both in a convex structure, the cross beam 3 is arranged below the bumper body 1, two ends of the bumper body 1 are fixedly connected with the cross beam 3 through the fixing bolt 4, the fixing bolt 4 is sleeved with the first damping spring 5, the first damping spring 5 is arranged between the bumper body 1 and the cross beam 3, the lower end of the fixing bolt 4 sequentially penetrates through the protection plate 2, the bumper body 1 and the cross beam 3 are in threaded connection with a fixing nut 12, the fixing nut 12 is arranged below the cross beam 3, the middle part of the lower surface of the bumper body 1 is provided with a first buffer block 6, the middle part of the upper surface of the crossbeam 3 is provided with a second buffer block 7, a buffer plate 8 is arranged between the first buffer block 6 and the second buffer block 7, the upper end of a guide rod 9 is arranged below the first buffer block 6, the lower end of the guide rod 9 penetrates through the buffer plate 8 and is arranged above the second buffer block 7, the upper part and the lower part of the guide rod 9 are sleeved with a fourth damping spring 13, a fixing bolt 4 is arranged between the protection plate 2 and the crossbeam 3 to be matched with the first damping spring 5, when the bumper is collided, the first damping springs 5 at two ends slide along the fixing bolt 4 to compress the first damping springs 5, so that the kinetic energy is converted into elastic potential energy, thereby reducing the destructive power of the collision, the buffering effect is good, two groups of second damping springs 10 are arranged between the bumper body 1 and the buffer plate 8, the second damping springs 10 are, two groups of third damping springs 11 are arranged between the buffer plate 8 and the cross beam 3, the third damping springs 11 are arranged at two sides of the second buffer block 7, third buffer blocks 14 are arranged at two sides of the lower surface of the buffer plate 8 and the upper surface of the cross beam 3 corresponding to the buffer plate 8, the third buffer blocks 14 are arranged at two sides of the guide rod 9, by arranging the guide rod 9 between the protection plate 2 and the buffer plate 8, in cooperation with the fourth damping spring 13, so that, when the shielding plate 2 is pressed, it can be buffered by the guide rod 9 and the fourth damping spring 13, so that when the fourth damping spring 13 is pressed to the lowest position, the buffer plate 8 supports the protection plate 2, the first buffer block 6, the second buffer block 7 and the third buffer block 14 are made of rubber, through set up multiunit buffer block in bumper body, buffer board and crossbeam department, strengthened the buffer capacity of bumper, better realization bumper buffering energy-absorbing's effect.

Application method

Through increasing guard plate 2, buffer board 8 and crossbeam 3, set up multiunit damping spring between guard plate 2 and buffer board 8, buffer board 8 and crossbeam 3, the effectual intensity that has strengthened the bumper, simultaneously can be fine play the cushioning effect.

The buffer plate 8 can be provided with a through hole for the guide rod 9 to pass through, and the diameter of the through hole is larger than that of the guide rod and smaller than that of the fourth damping spring.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bumper with buffering shock-absorbing function which characterized in that: comprises a bumper body (1), a protection plate (2), a cross beam (3), a fixing bolt (4), a first damping spring (5), a first buffer block (6), a second buffer block (7), a buffer plate (8), a guide rod (9), a second damping spring (10) and a third damping spring (11), wherein the protection plate (2) is arranged above the bumper body (1), the bumper body (1) and the protection plate (2) are both in a convex structure, the cross beam (3) is arranged below the bumper body (1), two ends of the bumper body (1) are fixedly connected with the cross beam (3) through the fixing bolt (4), the fixing bolt (4) is sleeved with the first damping spring (5), the first damping spring (5) is arranged between the bumper body (1) and the cross beam (3), the middle part of the lower surface of the bumper body (1) is provided with the first buffer block (6), crossbeam (3) upper surface middle part is equipped with second buffer block (7), be equipped with buffer board (8) between first buffer block (6) and second buffer block (7), first buffer block (6) below is located to guide bar (9) upper end, guide bar (9) lower extreme runs through second buffer block (7) top is located in buffer board (8), be equipped with two sets of second damping spring (10) between the bumper body (1) and buffer board (8), be equipped with two sets of third damping spring (11) between buffer board (8) and crossbeam (3).

2. A bumper having a shock-absorbing function according to claim 1, wherein: the lower end of the fixing bolt (4) penetrates through the protection plate (2), the bumper body (1) and the cross beam (3) in sequence and is in threaded connection with the fixing nut (12), and the fixing nut (12) is arranged below the cross beam (3).

3. A bumper having a shock-absorbing function according to claim 1, wherein: and the upper part and the lower part of the guide rod (9) are both sleeved with a fourth damping spring (13).

4. A bumper having a shock-absorbing function according to claim 1, wherein: the second damping springs (10) are arranged on two sides of the first buffer block (6).

5. A bumper having a shock-absorbing function according to claim 1, wherein: and the third damping springs (11) are arranged on two sides of the second buffer block (7).

6. A bumper having a shock-absorbing function according to claim 1, wherein: the lower surface both sides of buffer board (8), crossbeam (3) correspond the upper surface of buffer board (8) department and all are equipped with third buffer block (14), third buffer block (14) are located guide bar (9) both sides.

7. The bumper with the shock absorbing function according to claim 6, wherein: the first buffer block (6), the second buffer block (7) and the third buffer block (14) are all made of rubber materials.

8. A bumper having a shock-absorbing function according to claim 1, wherein: the protection plate (2) is made of chromium steel or manganese steel.