CN211844329U

CN211844329U - Shock-absorbing bumper

Info

Publication number: CN211844329U
Application number: CN201922321137.8U
Authority: CN
Inventors: 张跃凤
Original assignee: Yangzhong Fenghua Plastic Electricity Co ltd
Current assignee: Yangzhong Fenghua Plastic Electricity Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-11-03
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a shock attenuation nature bumper, including the bumper main part, the fixed casing of bumper is installed to the rear side of bumper main part, eight flexible connecting rods are installed to the centre of the fixed casing of bumper and bumper main part, the outside of flexible connecting rod is provided with buffer spring, eight two direction spliced poles are installed to the centre of flexible connecting rod, the inside rotatory connecting rod spread groove that is provided with of one end of direction spliced pole, damping spring, two are installed to the one end of direction spliced pole ejecting piece is installed to the centre of direction spliced pole, ejecting piece's rear side is provided with ejecting piece mounting groove. The utility model discloses an install buffer spring, ejecting piece, damping spring, ejecting piece fixed block, ejecting spring and pretension spring and can effectually slow down the impact that the bumper received, guarantee vehicle safety, and can strengthen the intensity of bumper to a certain extent, simple structure, convenient operation.

Description

Shock-absorbing bumper

Technical Field

The utility model relates to a bumper technical field specifically is a shock attenuation nature bumper.

Background

Along with the rapid development of social economy, the automobile bumper is a safety device for absorbing and slowing down external impact force and protecting the front part and the rear part of an automobile body, the front bumper and the rear bumper of a sedan car are required to be harmonious and unified with the shape of the automobile body besides maintaining the original protection function, the front bumper and the rear bumper of the sedan car are required to be light in weight, the front bumper and the rear bumper of the sedan car are all made of plastics, the plastic bumper is called as a plastic bumper, the plastic bumper of a common automobile is composed of an outer plate, a buffer material and a cross beam, wherein the outer plate and the buffer material are made of plastics, and the cross beam is punched by a cold; the outer plate and the buffer material are attached to the cross beam, and the cross beam is connected with the frame longitudinal beam through screws and can be detached at any time.

However, the existing bumper is small in force for absorbing and relieving impact during use, and cannot ensure the safety of an automobile; thus, the existing needs are not met, and a shock-absorbing bumper is proposed for the need.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shock attenuation nature bumper to the current bumper that proposes in solving above-mentioned background art is using to absorb and slow down the dynamics of impact little, can not guarantee car safety scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a shock attenuation nature bumper, includes the bumper main part, the fixed casing of bumper is installed to the rear side of bumper main part, eight telescopic link are installed to the middle of the fixed casing of bumper and bumper main part, telescopic link's the outside is provided with buffer spring, eight two guide connection posts are installed to telescopic link's centre, the inside rotating connecting rod spread groove that is provided with of guide connection post's one end, damping spring, two are installed to guide connection post's one end ejecting piece is installed to guide connection post's centre, ejecting piece's rear side is provided with ejecting piece mounting groove, the internally mounted of the fixed casing of bumper has ejecting piece fixed block, pretension spring is installed to the one end of ejecting piece fixed block.

Preferably, a limiting slide block is installed on the outer side of one end of the guide connecting column, and a limiting slide groove is formed in the outer side of the limiting slide block.

Preferably, a rotating connecting rod is arranged between the guide connecting column and the ejection block, a shaft pin is arranged in the rotating connecting rod, and the shaft pin penetrates through the rotating connecting rod and extends into the bumper fixing shell.

Preferably, the one end of flexible connecting rod is laminated completely with the rear side of bumper main part, the other end of flexible connecting rod is laminated completely with the preceding terminal surface of the fixed casing of bumper, flexible connecting rod all passes through welded fastening with the fixed casing of bumper and bumper main part.

Preferably, a limiting ring is arranged on the outer side of one end of the ejection block fixing block, the outer side of the limiting ring is completely attached to the inside of the bumper fixing shell, and the ejection block fixing block is connected with the bumper fixing shell in a sliding mode.

Preferably, a rubber pad is arranged on the front end face of the ejection block, and the rubber pad and the ejection block are fixed through an adhesive.

Preferably, an ejection spring is arranged between the ejection block and the bumper fixing shell, and the initial state of the ejection spring is a compressed limit degree.

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

1. the utility model drives the rotating connecting rod to be inserted into one end inside the connecting groove of the rotating connecting rod to rotate when the guiding connecting column contracts towards the inside of the bumper fixing shell, so that the rotating connecting rod rotates around the shaft pin, the ejection block can lose the constraint of the rotating connecting rod after the shaft pin rotates for a certain angle, so that the ejection spring loses the constraint effect, the ejection spring can elastically extend at the moment, the ejection block is ejected out integrally to prop up the bumper main body and prevent the bumper main body from going backwards, after the ejection block is ejected integrally, the ejection block fixing blocks at the two sides of the ejection block can lose the constraint of force, so that the pre-tightening spring is elastically reset, the two ejection block fixing blocks are ejected out, the two ejection block fixing blocks can limit the retreating path of the ejection block, so that the ejection block can exert a strong acting force on the bumper main body, and the overall performance of the bumper main body can, the shock resistance of the bumper body is improved;

2. the utility model discloses a when the car receives striking or car striking to the object, at first the bumper main part can be because the impact force that the impact produced is passive moves to the fixed casing of bumper, bumper main part can drive its rear side and shrink through welded fastening's telescopic link and guide connection post in the motion process, buffer spring in its outside can receive the extrusion passive shrink of bumper main part when telescopic link contracts, can produce a reaction force in order to weaken the impact force that the bumper main part received when the shrink, cushion the shock attenuation, guide connection post can continue the motion when ejecting piece fixed block damages because of the impact, and compress damping spring, damping spring after the compression can apply a reaction force, restrict the motion of bumper main part, further buffering and shock attenuation, guarantee automobile safety.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a partial sectional view of the whole structure of the present invention;

fig. 4 is a cross-sectional view of the bumper fixing housing according to the present invention.

In the figure: 1. a bumper fixing housing; 2. a bumper body; 3. a buffer spring; 4. a guide connecting column; 5. ejecting a block; 6. a telescopic connecting rod; 7. ejecting a spring; 8. a damping spring; 9. rotating the connecting rod; 10. a limiting slide block; 11. a limiting chute; 12. an ejection block mounting groove; 13. a connecting groove of the rotary connecting rod; 14. a shaft pin; 15. ejecting a block fixing block; 16. and pre-tightening the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides an embodiment: a shock-absorbing bumper comprises a bumper body 2, a bumper fixing shell 1 is installed on the rear side of the bumper body 2, eight telescopic connecting rods 6 are installed between the bumper fixing shell 1 and the bumper body 2, a buffer spring 3 is arranged on the outer side of each telescopic connecting rod 6, external impact force can be effectively reduced, shock absorption is carried out, two guide connecting columns 4 are installed in the middles of the eight telescopic connecting rods 6, a rotating connecting rod connecting groove 13 is formed in one end of each guide connecting column 4, a shock absorption spring 8 is installed at one end of each guide connecting column 4, an ejection block 5 is installed in the middle of each guide connecting column 4, the performance of the bumper body 2 can be enhanced after ejection, the retreat of the bumper body 2 is limited at the same time, shock absorption and shock absorption are carried out, an ejection block mounting groove 12 is formed in the rear side of each ejection block 5, an ejection block fixing block 15 is installed inside the, one end of the ejection block fixing block 15 is provided with a pre-tightening spring 16.

Further, a limiting slide block 10 is installed on the outer side of one end of the guide connecting column 4, and a limiting slide groove 11 is formed in the outer side of the limiting slide block 10.

Through adopting above-mentioned technical scheme, spacing slider 10 guarantees that guide connection post 4 can not break away from bumper fixed housing 1 is inside, carries out the direction location simultaneously.

Furthermore, a rotating connecting rod 9 is arranged between the guide connecting column 4 and the ejection block 5, a shaft pin 14 is arranged inside the rotating connecting rod 9, and the shaft pin 14 penetrates through the rotating connecting rod 9 and extends into the bumper fixing shell 1.

By adopting the technical scheme, the shaft pin 14 is simple in structure, convenient to use and convenient for rotating the connecting rod 9.

Further, the one end of flexible connecting rod 6 and the rear side of bumper main part 2 laminate completely, and the other end of flexible connecting rod 6 and the preceding terminal surface of the fixed casing of bumper 1 laminate completely, and flexible connecting rod 6 all passes through welded fastening with the fixed casing of bumper 1 and bumper main part 2.

By adopting the technical scheme, the welding enhances the connection performance and the stability of the telescopic connecting rod 6, the bumper fixing shell 1 and the bumper main body 2, and the mechanical strength is good.

Further, a limiting ring is arranged on the outer side of one end of the ejection block fixing block 15, the outer side of the limiting ring is completely attached to the inside of the bumper fixing shell 1, and the ejection block fixing block 15 is connected with the bumper fixing shell 1 in a sliding mode.

By adopting the technical scheme, the sliding connection structure is simple, the use is convenient, the ejection of the ejection block fixing block 15 is convenient, and the retreating path of the ejection block 5 is limited.

Further, a rubber pad is arranged on the front end face of the ejection block 5, and the rubber pad and the ejection block 5 are fixed through an adhesive.

Through adopting above-mentioned technical scheme, the rubber pad can effectually slow down the impact, reduces the spoilage, and the adhesive bonds firmly.

Further, an ejection spring 7 is provided between the ejection block 5 and the bumper fixing case 1, and an initial state of the ejection spring 7 is a limit degree of compression.

Through adopting above-mentioned technical scheme, the ejecting spring 7 that is compressed to the limit degree conveniently is ejecting with ejecting piece 5 after losing the constraint.

The working principle is as follows: when the automobile bumper fixing device is used, when an automobile is impacted or the automobile impacts an object, firstly, the bumper main body 2 can be driven to move towards the bumper fixing shell 1 due to impact force generated by impact, the bumper main body 2 can drive the rear side of the bumper main body to contract through the telescopic connecting rod 6 and the guide connecting column 4 which are fixedly welded, the buffer spring 3 on the outer side of the telescopic connecting rod 6 can be extruded and passively contracted by the bumper main body 2 when the telescopic connecting rod 6 contracts, a reaction force can be generated during contraction to weaken the impact force on the bumper main body 2 for buffering and shock absorption, meanwhile, the guide connecting column 4 can drive one end, inserted in the rotary connecting rod connecting groove 13, of the rotary connecting rod 9 to rotate when contracting towards the inside of the bumper fixing shell 1, so that the rotary connecting rod 9 rotates around the shaft pin 14, and the ejection block 5 can lose the constraint of the rotary connecting rod 9 after the shaft pin 14, so that the ejection spring 7 loses the binding effect, at the moment, the ejection spring 7 can elastically stretch to eject the ejection block 5 integrally, the bumper body 2 is abutted to prevent the bumper body from going backwards continuously, after the ejection block 5 is ejected integrally, the ejection block fixing blocks 15 on the two sides of the ejection block 5 also lose the binding of force, so that the pre-tightening spring 16 elastically resets to eject the two ejection block fixing blocks 15, the two ejected ejection block fixing blocks 15 can limit the retreating path of the ejection block 5, so that the ejection block 5 can apply a strong acting force to the bumper body 2, simultaneously the overall performance of the bumper body 2 can be enhanced, the impact resistance of the bumper body 2 is improved, the guide connecting column 4 can continue to move when the ejection block fixing blocks 15 are damaged due to impact, the damping spring 8 is compressed, and the damping spring 8 after being compressed can apply a reaction force, the motion of restriction bumper main part 2, further buffering and shock attenuation guarantee car safety, simple structure, convenient operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A shock-absorbing bumper, comprising a bumper body (2), characterized in that: a bumper fixing shell (1) is arranged at the rear side of the bumper main body (2), eight telescopic connecting rods (6) are arranged between the bumper fixing shell (1) and the bumper main body (2), the outer sides of the telescopic connecting rods (6) are provided with buffer springs (3), the middle parts of the eight telescopic connecting rods (6) are provided with two guide connecting columns (4), a rotating connecting rod connecting groove (13) is arranged inside one end of the guide connecting column (4), one end of each guide connecting column (4) is provided with a damping spring (8), the middle of each guide connecting column (4) is provided with an ejection block (5), an ejection block mounting groove (12) is formed in the rear side of the ejection block (5), an ejection block fixing block (15) is mounted inside the bumper fixing shell (1), one end of the ejection block fixing block (15) is provided with a pre-tightening spring (16).

2. A shock absorbing bumper as set forth in claim 1 wherein: and a limiting sliding block (10) is installed on the outer side of one end of the guide connecting column (4), and a limiting sliding groove (11) is formed in the outer side of the limiting sliding block (10).

3. A shock absorbing bumper as set forth in claim 1 wherein: the middle of the guide connecting column (4) and the ejection block (5) is provided with a rotating connecting rod (9), a shaft pin (14) is arranged inside the rotating connecting rod (9), and the shaft pin (14) penetrates through the rotating connecting rod (9) and extends to the inside of the bumper fixing shell (1).

4. A shock absorbing bumper as set forth in claim 1 wherein: the one end of flexible connecting rod (6) is laminated with the rear side of bumper main part (2) completely, the other end of flexible connecting rod (6) is laminated with the preceding terminal surface of the fixed casing of bumper (1) completely, flexible connecting rod (6) all pass through welded fastening with the fixed casing of bumper (1) and bumper main part (2).

5. A shock absorbing bumper as set forth in claim 1 wherein: the outer side of one end of the ejection block fixing block (15) is provided with a limiting ring, the outer side of the limiting ring is completely attached to the inside of the bumper fixing shell (1), and the ejection block fixing block (15) is connected with the bumper fixing shell (1) in a sliding mode.

6. A shock absorbing bumper as set forth in claim 1 wherein: the front end face of the ejection block (5) is provided with a rubber pad, and the rubber pad and the ejection block (5) are fixed through an adhesive.

7. A shock absorbing bumper as set forth in claim 1 wherein: an ejection spring (7) is arranged between the ejection block (5) and the bumper fixing shell (1), and the initial state of the ejection spring (7) is the compressed limit degree.