CN219883808U

CN219883808U - Rebound structure of automobile bumper

Info

Publication number: CN219883808U
Application number: CN202321067915.5U
Authority: CN
Inventors: 李春雷; 顾君芳
Original assignee: Danyang Tianchi Automobile Co ltd
Current assignee: Danyang Tianchi Automobile Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-10-24
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a rebound structure of an automobile bumper, and relates to the field of automobile bumpers. In order to solve the problem that the existing bumper does not have the rebound effect when buffering, is deformed after being impacted and cannot be quickly recovered. The utility model provides a rebound structure of car bumper, includes the bumper main part, the outside of bumper main part is equipped with a plurality of anti-friction crossbars, and the lower surface corner of bumper main part is connected with the elastic sheet, and the centre of bumper main part is equipped with the cavity, and the storage tank has been seted up to the lower surface of bumper main part, is equipped with the gasbag in the storage tank, and one side of gasbag is equipped with the pump, and the opposite side of gasbag is equipped with the sensor, and the inboard of bumper main part is equipped with rebound mechanism, and rebound mechanism sets up on energy-absorbing subassembly. This resilience structure of car bumper buffers the impact force that the bumper main part received, avoids the impact force great, causes the damage of bumper main part for hit flat place and reset fast, with the shape before the bumper main part resilience resumes.

Description

Rebound structure of automobile bumper

Technical Field

The utility model relates to the technical field of automobile bumpers, in particular to a rebound structure of an automobile bumper.

Background

The automobile bumper is a safety device for absorbing and relieving external impact force and protecting the front and rear parts of the automobile body. The device generates buffering when the automobile or the driver is impacted and stressed. The automobile bumper can be damaged after being impacted by external force, and the bumped bumper can continuously impact the parts inside the automobile, so that secondary damage is easily caused to other parts of the automobile and impact objects, most of the existing automobile bumpers are provided with buffer mechanisms, can deform and buffer the impact force when being impacted by external objects, but the bumpers do not have the rebound effect when being buffered, deform after being impacted, cannot be quickly recovered, influence the normal use of the bumpers, and aiming at the defects, the rebound structure of the automobile bumper is designed.

Disclosure of Invention

The utility model aims to provide a rebound structure of an automobile bumper, which is provided with a function of buffering impact force received by a bumper main body, avoiding damage to the bumper main body caused by larger impact force, enabling an arc-shaped steel plate to quickly return to impact the bumper main body under the impact of resilience force of a first spring, a second spring and a return spring when the impact force disappears, enabling a shrunken place to quickly return, and protecting automobile internal parts and an impact object through an airbag to avoid secondary damage.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rebound structure of car bumper, includes the bumper main part, the outside of bumper main part is equipped with a plurality of anti-friction crossbands, the lower surface corner of bumper main part is connected with the elastic sheet, the centre of bumper main part is equipped with the cavity, the cavity intussuseption is filled with the filler, the storage tank has been seted up to the lower surface of bumper main part, be equipped with the gasbag in the storage tank, one side of gasbag is equipped with the pump, the opposite side of gasbag is equipped with the sensor, the inboard of bumper main part is equipped with rebound mechanism, rebound mechanism sets up on energy-absorbing subassembly, energy-absorbing subassembly sets up the inner wall at the bumper main part and contacts with the car.

Preferably, the resilience mechanism comprises a clamping groove, a supporting piece, an arc steel plate and a return spring, wherein the return spring is arranged in the clamping groove, one end, far away from the clamping groove, of the return spring is provided with the arc steel plate, and the lower surface of the arc steel plate is provided with a plurality of supporting pieces.

Preferably, the clamping grooves are formed in the inner walls of the two sides of the bumper body.

Preferably, one end of the supporting piece, which is far away from the arc-shaped steel plate, is fixed on the energy absorption assembly, and the elastic piece is in contact connection with the outer surface of the arc-shaped steel plate.

Preferably, the support piece comprises a support column, a movable column, a first spring, a second spring and a limiting block, wherein an installation cavity is formed in the support column, the second spring is fixed in the installation cavity, the top of the second spring is fixed on the lower surface of the limiting block, the limiting block is fixed on the movable column, and the first spring is sleeved on the outer side of the movable column.

Preferably, the limiting block is in contact with the inner wall of the supporting column, and the movable column penetrates through the supporting column to be fixed on the lower surface of the arc-shaped steel plate.

Preferably, one end of the first spring is fixed on the arc-shaped steel plate, and the other end of the first spring is fixed on the upper surface of the support column.

Preferably, mounting bolts are arranged on two sides of the bumper body, and the bumper body is mounted on an automobile through the mounting bolts.

Preferably, the energy-absorbing assembly comprises an energy-absorbing plate, buffer fillers and damping gaskets, a cavity is arranged in the middle of the energy-absorbing plate, the buffer fillers are filled in the cavity, and a plurality of damping gaskets connected with an automobile are arranged on the rear side of the energy-absorbing plate.

Preferably, the buffer filler is made of molybdenum foam material, and the filler is EPP foam material.

Compared with the prior art, the utility model has the following beneficial effects:

this resilience structure of car bumper, the arc steel sheet is extrudeed first spring, second spring and answer spring when receiving the impact, impact force to the bumper main part receives is buffered, avoid the impact force great, cause the damage of bumper main part, when the impact force disappears, under the impact of first spring, second spring and answer spring resilience force, make the arc steel sheet resume rapidly to strike the bumper main part, make the place of bumping flat reset fast, shape before the resilience of bumper main part resumes, the result of use of bumper main part has been guaranteed, when sensor detects pressure, start the pump and aerify in to the gasbag, make the bumper main part have certain elasticity, when the bumper main part is bumped rotten, protect car internals and impact object through the gasbag, avoid causing secondary damage.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a rebound structure of the present utility model;

FIG. 3 is a schematic view of a support structure according to the present utility model;

FIG. 4 is a schematic view of an energy absorbing assembly of the present utility model.

In the figure: 1. a bumper body; 2. an anti-scratch cross bar; 3. an elastic sheet; 4. a filler; 5. installing a bolt; 6. a storage groove; 7. a rebound mechanism; 71. a support; 711. a support column; 712. a movable column; 713. a first spring; 714. a second spring; 715. a limiting block; 72. arc-shaped steel plates; 73. a return spring; 74. a clamping groove; 8. an air bag; 9. an energy absorbing assembly; 91. an energy absorbing plate; 92. buffering filler; 93. damping pad; 10. an inflator pump; 11. a sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the technical problem that the conventional bumper does not have the rebound effect while buffering, is deformed after being impacted, cannot be quickly recovered, and influences the normal use of the bumper, please refer to fig. 1-4, the embodiment provides the following technical scheme:

a rebound structure of an automobile bumper comprises a bumper main body 1, wherein a plurality of anti-friction transverse strips 2 are arranged on the outer side of the bumper main body 1, the anti-friction performance of the bumper main body 1 can be improved through the anti-friction transverse strips 2, the service life of the bumper main body 1 is prolonged, an elastic sheet 3 is connected to the corner of the lower surface of the bumper main body 1, the weak part is effectively protected, the service efficiency of the structure is improved, a cavity is arranged in the middle of the bumper main body 1, a filler 4 is filled in the cavity, a containing groove 6 is formed in the lower surface of the bumper main body 1, an air bag 8 is arranged in the containing groove 6, an inflator 10 is arranged on one side of the air bag 8, a sensor 11 is arranged on the other side of the air bag 8, when the sensor 11 detects pressure, the inflator 10 is started to inflate into the air bag 8, so that the bumper main body 1 has a certain elastic force, when the bumper main body 1 is bumped, the airbag 8 is fully expanded to block the vehicle, the automobile internal parts and the impact object are protected through the airbag 8, secondary damage is avoided, the inner side of the bumper body 1 is provided with a rebound mechanism 7, the rebound mechanism 7 comprises a clamping groove 74, a supporting piece 71, an arc-shaped steel plate 72 and a return spring 73, the clamping groove 74 is arranged on the inner walls of the two sides of the bumper body 1, the return spring 73 is arranged in the clamping groove 74, one end of the return spring 73, which is far away from the clamping groove 74, is provided with the arc-shaped steel plate 72, the lower surface of the arc-shaped steel plate 72 is provided with a plurality of supporting pieces 71, one end of the supporting piece 71, which is far away from the arc-shaped steel plate 72, is fixed on the energy absorbing component 9, the elastic piece 3 is in contact connection with the outer surface of the arc-shaped steel plate 72, the supporting piece 71 comprises a supporting column 711, a movable column 712, a first spring 713, a second spring 714 and a limiting block 715, an installation cavity is arranged in the supporting column 711, a second spring 714 is fixed in the installation cavity, the top of the second spring 714 is fixed on the lower surface of the limiting block 715, the limiting block 715 is fixed on the movable column 712, the first spring 713 is sleeved outside the movable column 712, the limiting block 715 is in contact with the inner wall of the supporting column 711, the movable column 712 passes through the supporting column 711 and is fixed on the lower surface of the arc-shaped steel plate 72, one end of the first spring 713 is fixed on the arc-shaped steel plate 72, the other end is fixed on the upper surface of the supporting column 711, when the bumper main body 1 is impacted by external force and is shrunken, the arc-shaped steel plate 72 is shrunken inwards when the impact force is applied to the bumper main body 1, the first spring 713, the second spring 714 and the return spring 73 are extruded while the arc-shaped steel plate 72 is shrunken inwards, when the impact force is eliminated, the arc-shaped steel plate 72 is rapidly returned to the bumper main body 1 under the impact force of the return spring 73, the shape before the bumper body 1 is rebounded and restored ensures the using effect of the bumper body 1, and the impact force received by the bumper body 1 is buffered through the elasticity of the first spring 713, the second spring 714 and the restoring spring 73, so that the bumper body 1 is prevented from being damaged due to larger impact force, the rebound mechanism 7 is arranged on the energy absorbing component 9, the energy absorbing component 9 is arranged on the inner wall of the bumper body 1 and contacts with an automobile, the energy absorbing component 9 comprises an energy absorbing plate 91, a buffer filler 92 and a shock absorbing gasket 93, a cavity is arranged in the middle of the energy absorbing plate 91, the buffer filler 92 is filled in the cavity, a plurality of shock absorbing gaskets 93 connected with the automobile are arranged on the rear side of the energy absorbing plate 91, the damage to the automobile caused by collision can be further lightened when the collision occurs, thereby reducing the damage to the automobile and the human caused by the accident, improving the driving installability, the buffer filler 92 is made of molybdenum foam materials, the filler 4 is EPP foaming material, and the both sides of the bumper body 1 are equipped with mounting bolts 5, and the bumper body 1 is installed on the car through mounting bolts 5.

When the bumper body 1 is impacted by external force and is shrunken, the arc-shaped steel plate 72 is contracted inwards when being impacted by the impact force, the arc-shaped steel plate 72 is contracted inwards and simultaneously extrudes the first spring 713, the second spring 714 and the return spring 73, when the impact force is eliminated, the arc-shaped steel plate 72 is quickly returned to impact the bumper body 1 under the impact of the resilience force of the first spring 713, the second spring 714 and the return spring 73, the shrunken place is quickly restored, the bumper body 1 is rebound and returns to the former shape, the sensor 11 detects the pressure, the inflator pump 10 is started to inflate the airbag 8, the bumper body 1 has a certain elasticity, and when the bumper body 1 is impacted and is shrunken, the airbag 8 is completely expanded to block a vehicle.

To sum up, this resilience structure of car bumper, the arc steel sheet 72 is inwards contracted when receiving the impact, extrude first spring 713, second spring 714 and return spring 73, the impact that receives bumper main part 1 is cushioned, avoid the impact great, cause the damage of bumper main part 1, when the impact disappears, under the impact of first spring 713, second spring 714 and return spring 73 resilience force, make arc steel sheet 72 resume rapidly to strike bumper main part 1, make the place that bumps flat reset fast, shape before the resilience of bumper main part 1 resumes, the result of use of bumper main part 1 has been guaranteed, when sensor 11 detects pressure, start inflator 10 to aerify in to gasbag 8, make bumper main part 1 have certain elasticity, when bumper main part 1 is bumped, protect car internals and impact object through gasbag 8, avoid causing secondary damage.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a rebound structure of car bumper, includes bumper main part (1), its characterized in that: the outside of bumper main part (1) is equipped with a plurality of anti-friction crossbands (2), the lower surface corner of bumper main part (1) is connected with elastic sheet (3), the centre of bumper main part (1) is equipped with the cavity, the cavity intussuseption is filled with filler (4), accomodate groove (6) have been seted up to the lower surface of bumper main part (1), be equipped with gasbag (8) in accomodating groove (6), one side of gasbag (8) is equipped with pump (10), the opposite side of gasbag (8) is equipped with sensor (11), the inboard of bumper main part (1) is equipped with resilience mechanism (7), resilience mechanism (7) set up on energy-absorbing subassembly (9), energy-absorbing subassembly (9) set up at the inner wall of bumper main part (1) and with car contact.

2. The rebound structure of an automobile bumper of claim 1, wherein: the resilience mechanism (7) comprises a clamping groove (74), supporting pieces (71), an arc-shaped steel plate (72) and a return spring (73), wherein the return spring (73) is arranged in the clamping groove (74), one end, far away from the clamping groove (74), of the return spring (73) is provided with the arc-shaped steel plate (72), and the lower surface of the arc-shaped steel plate (72) is provided with a plurality of supporting pieces (71).

3. The rebound structure of an automobile bumper of claim 2, wherein: the clamping grooves (74) are formed in the inner walls of the two sides of the bumper body (1).

4. The rebound structure of an automobile bumper of claim 2, wherein: one end of the supporting piece (71) far away from the arc-shaped steel plate (72) is fixed on the energy absorbing component (9), and the elastic piece (3) is in contact connection with the outer surface of the arc-shaped steel plate (72).

5. The rebound structure of an automobile bumper of claim 2, wherein: support piece (71) is including support column (711), movable column (712), first spring (713), second spring (714) and stopper (715), is equipped with the installation cavity in support column (711), and the installation intracavity is fixed with second spring (714), and the lower surface at stopper (715) is fixed at the top of second spring (714), and stopper (715) are fixed on movable column (712), and the outside cover of movable column (712) has first spring (713).

6. The rebound structure of an automotive bumper of claim 5 wherein: the limiting block (715) is in contact with the inner wall of the supporting column (711), and the movable column (712) penetrates through the supporting column (711) to be fixed on the lower surface of the arc-shaped steel plate (72).

7. The rebound structure of an automotive bumper of claim 5 wherein: one end of the first spring (713) is fixed on the arc-shaped steel plate (72), and the other end of the first spring is fixed on the upper surface of the support column (711).

8. The rebound structure of an automobile bumper of claim 1, wherein: mounting bolts (5) are arranged on two sides of the bumper body (1), and the bumper body (1) is mounted on an automobile through the mounting bolts (5).

9. The rebound structure of an automobile bumper of claim 1, wherein: the energy-absorbing assembly (9) comprises an energy-absorbing plate (91), buffer fillers (92) and shock-absorbing gaskets (93), a cavity is formed in the middle of the energy-absorbing plate (91), the buffer fillers (92) are filled in the cavity, and a plurality of shock-absorbing gaskets (93) connected with an automobile are arranged on the rear side of the energy-absorbing plate (91).

10. The rebound structure of an automotive bumper of claim 9 wherein: the buffer filler (92) is made of molybdenum foam material, and the filler (4) is EPP foam material.