CN211032474U - An automobile bumper with an energy-absorbing structure - Google Patents

Abstract

The utility model belongs to the technical field of automobile bumpers, and discloses an automobile bumper with an energy-absorbing structure, which comprises a bottom plate, wherein the upper surface wall of the bottom plate is symmetrically connected with hollow columns, the inner bottom ends of the hollow columns are connected with elastic columns, the outer sleeves of the elastic columns are sleeved with second buffer springs, the top ends of the elastic columns are connected with second fixed blocks, the top ends of the second fixed blocks are connected with pressure rods, the lower ends of the outer surfaces of the pressure rods are symmetrically connected with guide blocks, the utility model can perform first energy absorption and buffering when an automobile is collided through the foam energy-absorbing blocks, can avoid the fracture of a bumper shell and the bottom plate due to collision contact, and then perform secondary energy absorption and buffering through the matching of the pressure rods, the second buffer springs and the elastic columns, and can generate reverse elastic force to fully absorb and buffer external impact force through the second buffer springs and the elastic columns, effectively reducing the damage of the collision to the automobile body and the personnel.

Description

An automobile bumper with an energy-absorbing structure

technical field

The utility model belongs to the technical field of automobile bumpers, in particular to an automobile bumper with an energy-absorbing structure.

Background technique

With the development of society, the advancement of science and technology and the improvement of people's living standards, the number of cars is gradually increasing. At the same time, the increase in the number of cars has also brought more traffic accidents. Automobile bumpers are one of the most important parts in the field of automobile safety technology. The important parts of the car are not only decorative functions, but also a safety device that absorbs and mitigates external impact forces, protects the body and protects the body and occupants' safety functions, which can greatly reduce the loss of traffic accidents.

However, the current car bumpers on the market have certain defects in use. The traditional car bumpers have poor anti-collision performance and poor energy absorption effect. When the car collides, the protection effect of the car body and personnel is poor. The anti-collision structure of the automobile bumper is not provided with a guiding structure, and when subjected to a collision, the anti-collision structure is easily bent, which will greatly reduce the buffering effect.

Utility model content

The purpose of this utility model is to provide an automobile bumper with an energy-absorbing structure, so as to solve the problems of poor anti-collision performance and poor energy-absorbing effect of the traditional automobile bumper proposed in the above-mentioned background technology. In addition, the traditional anti-collision structure does not When a guide structure is provided, the anti-collision structure is easily bent and the buffering effect is reduced when a collision is encountered.

In order to achieve the above purpose, the utility model provides the following technical solutions: an automobile bumper with an energy-absorbing structure, comprising a bottom plate, the upper surface wall of the bottom plate is symmetrically connected with a hollow column, and the inner bottom end of the hollow column is connected with a hollow column. an elastic column, the outer part of the elastic column is sleeved with a second buffer spring, the top end of the elastic column is connected with a second fixing block, the top end of the second fixing block is connected with a pressure rod, and the lower end of the outer wall of the pressure rod is connected A guide block is symmetrically connected, the inner wall of the hollow column is symmetrically provided with a guide groove that matches the guide block, a support plate is connected to the top of the pressure rod, and a foam is connected to the middle of the upper surface wall of the support plate. An energy-absorbing block, one end of the foam energy-absorbing block away from the support plate is connected with a bumper shell, and a support inclined plate is symmetrically connected between the two ends of the upper surface wall of the support plate and the bumper shell.

Preferably, a first fixing block is fixed on the lower wall of the supporting inclined plate, and a first buffer spring is connected between the lower wall of the first fixing block and the upper surface wall of the supporting plate.

Preferably, the outer wall of the bumper shell is bonded with a first cushion layer, and the upper surface wall of the support plate is bonded with a second cushion layer.

Preferably, the lower wall of the bottom plate is symmetrically connected with a mounting plate, and the outer wall of the mounting plate is provided with mounting holes.

Preferably, limit blocks are fixed at the inner top of the guide groove, and there are four limit blocks fixed in total.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) The utility model can use the foam energy-absorbing block to perform the first energy-absorbing buffering when the car is collided, which can prevent the bumper shell and the bottom plate from breaking due to the impact contact, and then pass the pressure rod and the second buffer spring. With the cooperation of the elastic column, it can carry out secondary energy absorption and buffering. The reverse elastic force generated by the second buffer spring and the elastic column can fully absorb and alleviate the external impact force, effectively reducing the damage to the car body and personnel caused by the impact.

(2) Through the cooperation of the guide block and the guide groove, the utility model can improve the verticality of the downward pressure of the second buffer spring when the pressure rod is forced to press the second buffer spring, avoid the bending of the spring, and ensure the The direction of the reverse elastic force and the impact force are in a straight line, which can maximize the use of the elastic force for buffering and effectively improve the buffering effect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the internal structure diagram of the hollow column of the present utility model;

Fig. 3 is the top view of the hollow column of the utility model;

Fig. 4 is the sectional view of the hollow column of the utility model;

In the figure: 1-bumper shell, 2-first buffer layer, 3-foam energy-absorbing block, 4-support inclined plate, 5-first buffer spring, 6-support plate, 7-installation plate, 8- Hollow column, 9-bottom plate, 10-pressing rod, 11-second buffer layer, 12-first fixing block, 13-guide block, 14-second buffer spring, 15-elastic column, 16-second fixing block , 17-guide groove, 18-limit block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1-FIG. 4, the present utility model provides a technical solution: an automobile bumper with an energy-absorbing structure, comprising a bottom plate 9, the upper surface wall of the bottom plate 9 is symmetrically connected with a hollow column 8, the hollow column 8 The inner bottom end of the elastic column 15 is connected with an elastic column 15, the outer part of the elastic column 15 is sleeved with a second buffer spring 14, and the top end of the elastic column 15 is connected with a second fixing block 16, and the top end of the second fixing block 16 is connected with a pressure rod 10 , the pressure rod 10 is pressed down, and the reverse elastic force generated by the second buffer spring 14 and the elastic column 15 can fully absorb and alleviate the external impact force, effectively reducing the damage caused by the impact to the car body and personnel. The appearance of the pressure rod 10 The lower end of the wall is symmetrically connected with a guide block 13, and the inner wall of the hollow column 8 is symmetrically provided with a guide groove 17 that is adapted to the guide block 13. When the buffer spring 14 is used, the verticality of the pressing of the second buffer spring 14 can be improved, the bending of the spring can be avoided, the reverse elastic force generated by the spring and the direction of the impact force can be in a straight line, and the elastic force can be used for buffering to the maximum extent, which effectively improves the Cushioning effect, the top end of the pressure rod 10 is connected with a support plate 6, and the middle position of the upper surface wall of the support plate 6 is connected with a foam energy-absorbing block 3, and the foam energy-absorbing block 3 can perform the first energy absorption buffering when the car is collided , the bumper shell 1 and the bottom plate 9 can be prevented from being broken due to impact contact, the end of the foam energy-absorbing block 3 away from the support plate 6 is connected with the bumper shell 1, and both ends of the upper surface wall of the support plate 6 are connected with the bumper shell. A support inclined plate 4 is symmetrically connected between 1.

Further, a first fixing block 12 is fixed on the lower wall of the support inclined plate 4, and a first buffer spring 5 is connected between the lower wall of the first fixing block 12 and the upper surface wall of the supporting plate 6. The first buffer spring 5. It can be used with the foam energy-absorbing block 3 for initial energy-absorbing buffering to improve the buffering limit.

Further, the outer wall of the bumper shell 1 is bonded with a first cushion layer 2, and the upper surface wall of the support plate 6 is bonded with a second cushion layer 11. The first cushion layer 2 can lower the bumper shell. 1. If the outer wall is damaged due to impact, the second buffer layer 11 can further prevent the bumper shell 1 and the bottom plate 9 from being broken due to impact contact.

Further, the lower wall of the bottom plate 9 is symmetrically connected with the mounting plate 7, and the outer wall of the mounting plate 7 is provided with mounting holes.

Further, the inner top of the guide groove 17 is fixed with limit blocks 18 , and there are four limit blocks 18 fixed in total.

The working principle and use process of the utility model: when the utility model is in use, the bumper is first stably installed on the automobile by using the mounting plate 7, and can be put into use after being installed. The bumper shell 1 of a cushion layer 2 is first subjected to force, wherein the first cushion layer 2 can reduce the damage to the outer wall of the bumper shell 1 caused by the impact, and then the impact force compresses the foam energy-absorbing block 3, The first energy absorption and buffering can prevent the bumper shell 1 and the bottom plate 9 from breaking due to impact contact, and then, the unabsorbed impact force exerts force on the pressure rod 10 at the bottom end of the support plate 6, and the pressure rod 10 is pressed down to make The second buffer spring 14 and the elastic column 15 contract, and the generated reverse elastic force can fully absorb and alleviate the external impact force, effectively reducing the damage to the vehicle body and personnel caused by the impact. In addition, the second buffer spring 14 and the elastic column When the 15 is retracted, the linear sliding of the guide block 13 in the guide groove 17 on the inner wall of the hollow column 8 can improve the verticality of the downward pressure of the second buffer spring 14, avoid the bending of the spring, and ensure the reverse elastic force and impact generated by the spring. The direction of the force is in a straight line, which can maximize the use of the reverse elastic force for buffering, which effectively improves the buffering effect.

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

Claims (5)

1. An automobile bumper with an energy-absorbing structure, characterized in that it comprises a bottom plate (9), and the upper surface wall of the bottom plate (9) is symmetrically connected with a hollow column (8), and the hollow column (8) has a hollow column (8). The inner bottom end is connected with an elastic column (15), the outside of the elastic column (15) is sleeved with a second buffer spring (14), and the top end of the elastic column (15) is connected with a second fixing block (16), so The top end of the second fixing block (16) is connected with a pressure rod (10), the lower end of the outer wall of the pressure rod (10) is symmetrically connected with a guide block (13), and the inner wall of the hollow column (8) is symmetrically opened with A guide groove (17) adapted to the guide block (13), a support plate (6) is connected to the top of the pressing rod (10), and a foam is connected to the middle position of the upper surface wall of the support plate (6). An energy-absorbing block (3), one end of the foam energy-absorbing block (3) away from the support plate (6) is connected with a bumper shell (1), and both ends of the upper surface wall of the support plate (6) are connected to the bumper A support inclined plate (4) is symmetrically connected between the shells (1). 2 . The automobile bumper with an energy-absorbing structure according to claim 1 , wherein a first fixing block ( 12 ) is fixed on the lower wall of the supporting inclined plate ( 4 ). 2 . A first buffer spring (5) is connected between the lower surface wall of the fixing block (12) and the upper surface wall of the support plate (6). 3. An automobile bumper with an energy-absorbing structure according to claim 1, characterized in that: the outer wall of the bumper shell (1) is bonded with a first buffer layer (2), and the A second buffer cushion layer (11) is bonded to the upper surface wall of the support plate (6). 4. An automobile bumper with an energy-absorbing structure according to claim 1, characterized in that: a mounting plate (7) is symmetrically connected to the lower wall of the bottom plate (9), and the mounting plate (7) The outer wall is provided with mounting holes. 5 . The automobile bumper with an energy-absorbing structure according to claim 1 , wherein a limit block ( 18 ) is fixed to the inner top of the guide groove ( 17 ), and the limit block ( 18 ) There are four fixed.

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