CN213007994U

CN213007994U - Novel light automobile bumper

Info

Publication number: CN213007994U
Application number: CN202020939866.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiangsu Ruiyan Lihua Physical And Automobile Trims Co ltd
Current assignee: Jiangsu Ruiyan Lihua Physical And Automobile Trims Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-20
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a novel light automobile bumper, including the bumper body, bumper body both sides are the arc chamfer, bumper body rear end face is transversely seted up flutedly, the lower extreme is established respectively to strengthening the strip and strengthening the strip down on the recess, it is fixed with cavity pressure-bearing rod to go up to strengthen the strip and strengthen the strip down from left to right alternate one by one, the middle part of a plurality of cavity pressure-bearing rods is connected with double-deck absorption strip, from left to right the sleeve that has set gradually on the double-deck absorption strip, a plurality of cavity pressure-bearing rod alternate in the sleeve that corresponds one by one, it has a plurality of haplopore splicing to go up to strengthen the strip simultaneously and strengthen the strip down one by one, two haplopore splicing are established to a set of about every, all be provided with the spring between every haplopore splicing of group. The utility model discloses better not only structurally optimize at the bumper bar, but also improved the shock-absorbing capacity of bumper bar, brought better safety protection to the personnel by bus.

Description

Novel light automobile bumper

Technical Field

The utility model mainly relates to the technical field of automobile spare and accessory parts, concretely relates to novel light automobile bumper.

Background

The bumper of the automobile is a safety device which absorbs and relaxes the external impact force and protects the front and rear parts of the automobile body. The automobile or the driver generates a buffer device when the collision is stressed.

Most of existing automobile bumpers are made of single-layer plastic materials, different holes are formed on the basis, so that the overall buffering performance of the automobile bumpers is reduced, the safety of personnel is threatened, and along with the rapid development of electric automobiles, relevant automobile manufacturers carry out technical research for reducing the weight of the automobiles, but the research and modification positions of the bumpers are few, and the bumpers need to have good buffering performance under any conditions, so that the research of the bumpers which can reduce the weight and have good buffering performance is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a novel light automobile bumper is used for solving the technical problem who proposes in the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a novel light automobile bumper comprises a bumper body, wherein arc chamfers are arranged on two sides of the bumper body, a groove is transversely formed in the rear end face of the bumper body, the upper end and the lower end of the groove are respectively provided with an upper reinforcing strip and a lower reinforcing strip, threaded fixing holes are vertically formed in the upper reinforcing strip from top to bottom, a plurality of threaded fixing holes are formed, and each threaded fixing hole is sequentially arranged at equal intervals from left to right;

the lower reinforcing strip is vertically provided with a plurality of limiting holes from top to bottom, the limiting holes are arranged one by one from left to right under the vertical thread fixing holes, hollow bearing rods are inserted into the thread fixing holes, the top of each hollow bearing rod is provided with a blind hole thread cap, the blind hole thread caps are in threaded connection with the corresponding thread fixing holes, and the bottom of each hollow bearing rod is embedded in the corresponding limiting hole;

the middle parts of the hollow pressure-bearing rods are connected with double-layer absorption strips, sleeves are sequentially arranged on the double-layer absorption strips from left to right, and the hollow pressure-bearing rods are inserted into the corresponding sleeves one by one.

Furthermore, the upper reinforcing strip, the lower reinforcing strip and the bumper body are integrally formed. Furthermore, the diameter of each thread fixing hole is larger than that of the limiting hole, and the diameter of the corresponding blind hole thread cap in each thread fixing hole is larger than that of the hollow pressure-bearing rod.

Furthermore, the bottom of each limiting hole does not penetrate through the lower reinforcing strip shell.

Further, each of the sleeves is integrally formed with the double-layer absorbent strip.

Further, the double-layer absorbent strip is a thermoplastic elastic material strip.

Furthermore, the outer surface of the bumper body is a carbon fiber material base layer, and a PE honeycomb framework layer is arranged on the inner side of the carbon fiber material base layer.

Furthermore, the rear end faces of the upper reinforcing strip and the lower reinforcing strip are sequentially connected with a plurality of buckle joints in a hot melting mode from left to right, the heads of the buckle joints are in a circular truncated cone shape, and a gap is formed in the circular truncated cone to one end of the joint of the buckle joints.

Furthermore, go up reinforced strip and reinforced strip rear end face down from left to right have a plurality of haplopore lock joint piece in proper order hot melt connected with, every two from top to bottom haplopore lock joint piece is established to a set of, all is provided with the spring between every group haplopore lock joint piece.

Further, each spring is a C92D spring steel type stamping-resistant spring.

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

one of the two, the utility model discloses set up the recess at the rear end face, the required preparation material of conventional bumper beam has been reduced, lighten whole weight, utilize to reinforce the strip and reinforce with the automobile body steelframe with reinforcing down on last lower extreme, insert respectively in a plurality of thread tightening holes of setting up on last reinforcing strip and establish the cavity pressure-bearing pole and extend to the spacing downthehole of reinforcing down, become better pressure-bearing structure with last reinforcing strip and lower reinforcing strip with moving about freely and quickly, the hollow structure of cavity pressure-bearing pole inside possesses the effect of lightening weight, and every cavity pressure-bearing pole all alternates in every sleeve of double-deck absorption strip, double-deck absorption strip keeps tight under the effect of a plurality of cavity pressure-bearing poles, the bumper beam casing that keeps the groove part has better resistance when receiving the impact, reduce sunken or damaged probability, make the bumper beam body possess stronger shock-absorbing capacity simultaneously;

and secondly, the utility model discloses a cavity pressure-bearing bar and double-deck absorption strip are detachable, lead to the body of rod to bend when the condition of warping or double-deck absorption strip disconnection when the occurence of failure, the maintenance personal of being convenient for changes to when the bumper bar body receives unrepairable damage, still usable cavity pressure-bearing bar or double-deck absorption strip are installed on new supporting bumper bar body in the detachable down, have not only reduced the waste of preparation material, have still reduced car owner's cost of maintenance. The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural view of the front end face of the bumper body according to the present invention;

FIG. 2 is a partial schematic view of the rear end face structure of the bumper body according to the present invention;

FIG. 3 is a schematic view of the connection structure of the hollow pressure-bearing rod and the double-layer absorbing strip of the present invention;

FIG. 4 is a cross-sectional structural view of the bumper body according to the present invention;

fig. 5 is an enlarged view of region a in fig. 1.

In the figure: 1. a bumper body; 1a, a carbon fiber material base layer; 1b, a PE honeycomb framework layer; 11. a groove; 12. adding a reinforcing strip; 12a, a threaded fixing hole; 13. a lower reinforcing strip; 13a, a limiting hole; 14. a snap joint; 15. a single-hole fastening sheet; 2. a spring; 3. a hollow pressure-bearing rod; 31. blind hole screw cap; 4. a double-layer absorbent strip; 41. a sleeve.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the embodiment, referring to fig. 1-3, a novel light automobile bumper comprises a bumper body 1, wherein two sides of the bumper body 1 are arc chamfers, a groove 11 is transversely formed on a rear end surface of the bumper body 1, the upper end and the lower end of the groove 11 are respectively provided with an upper reinforcing strip 12 and a lower reinforcing strip 13, the upper reinforcing strip 12 and the lower reinforcing strip 13 are integrally formed with the bumper body 1, the upper reinforcing strip 12 is vertically provided with a plurality of threaded fixing holes 12a from top to bottom, the plurality of threaded fixing holes 12a are arranged in an equal distance from left to right, the lower reinforcing strip 13 is vertically provided with a plurality of limiting holes 13a from top to bottom, the plurality of limiting holes 13a are arranged vertically below the threaded fixing holes 12a one by one, and a hollow pressure-bearing rod 3 is arranged in each threaded fixing hole 12a, the top of each hollow bearing rod 3 is provided with a blind hole threaded cap 31, the blind hole threaded cap 31 is in threaded connection with a corresponding threaded fixing hole 12a, the bottom of each hollow bearing rod 3 is embedded in a corresponding limiting hole 13a, the diameter of each threaded fixing hole 12a is larger than that of the limiting hole 13a, the diameter of the corresponding blind hole threaded cap 31 in each threaded fixing hole 12a is larger than that of the hollow bearing rod 3, the bottom of each limiting hole 13a does not penetrate through the shell of the lower reinforcing strip 13, so that the two ends of each hollow bearing rod 3 are kept in good fixed connection, the stability of the whole structure of the bumper rod is improved, the middle parts of a plurality of hollow bearing rods 3 are connected with double-layer absorbing strips 4, sleeves 41 are sequentially arranged on the double-layer absorbing strips 4 from left to right, and the hollow bearing rods 3 are inserted into the corresponding sleeves 41 one by one, each sleeve 41 and the double-layer absorbing strips 4 are integrally formed, the double-layer absorbing strips 4 are thermoplastic elastic material strips, and have elastic performance and are not easy to deform, and the buffering performance of the bumper is further improved. In an embodiment, referring to fig. 4, an outer surface of the bumper body 1 is a carbon fiber material base layer 1a, and a PE honeycomb structural layer 1b is disposed inside the carbon fiber material base layer 1 a. In this embodiment, regard as the shell through carbon fiber material basic unit 1a for bumper body 1's resistant punching press degree all has better promotion with the shape ability of preapring for an unfavorable turn of events, simultaneously in production process, is located the casing at 11 positions of recess and has installed PE honeycomb framework layer 1b additional, makes the toughness at this position become strong, and shell infiltration constitutes integral type zonulae occludens in the honeycomb hole during carbon fiber material hot melt.

In an embodiment, referring to fig. 2, the rear end surfaces of the upper reinforcing strip 12 and the lower reinforcing strip 13 are sequentially connected with a plurality of snap joints 14 in a hot-melting manner from left to right, the heads of the snap joints 14 are truncated cone-shaped, and a gap is formed from the truncated cone to one end of the joint of the snap joints 14. In this embodiment, the bumper body 1 is fastened in the mounting hole of the steel frame of the vehicle body through each snap joint 14, and the bumper has the advantage of being convenient and fast to assemble and disassemble.

In an embodiment, referring to fig. 2 and 5, the rear end surfaces of the upper reinforcing strip 12 and the lower reinforcing strip 13 are sequentially connected with a plurality of single-hole fastening pieces 15 through hot melting from left to right, every two single-hole fastening pieces 15 are arranged in a group, a spring 2 is arranged between every two single-hole fastening pieces 15, and each spring 2 is a C92D spring steel type stamping-resistant spring. In this embodiment, by connecting each group of single-hole buckling pieces 15 with C92D spring steel type impact-resistant springs, when the impact force causes the bumper body 1, the hollow pressure-bearing rod 3 and the double-layer absorbing strips 4 to deform greatly, the bumper body directly abuts against each spring 2 to perform impact force partial pressure, and simultaneously the springs 2 are pulled to perform reverse acting force to resist, so as to further realize the impact force buffering.

The utility model discloses a concrete operation as follows:

the bumper body 1 is used as a part of a front bumper and a rear bumper of a vehicle body, each buckle joint 14 is correspondingly buckled in a matched mounting hole which is a pre-designed hole on a vehicle body steel frame, when the vehicle collides front and back, impact force is generated and acts on the front end surface of the bumper body 1 to cause instant shell sinking, then the part of the impact force is sequentially subjected to the buffer resistance of a carbon fiber material base layer 1a, a PE honeycomb framework layer 1b, a hollow bearing rod 3, a double-layer absorption strip 4 and a spring 2 to disperse the impact force on each hollow bearing rod 3, the hollow bearing rods 3, an upper reinforcing strip 12, a lower reinforcing strip 13 and the double-layer absorption strip 4 form structural connection, the impact force is continuously shared and weakened, and the springs 2 resist the impact force in an auxiliary way by means of generated deformation resilience force within a bearing range, resulting in good cushioning effect on the impact force.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The novel light automobile bumper comprises a bumper body (1) and is characterized in that two sides of the bumper body (1) are arc chamfers, a groove (11) is transversely formed in the rear end face of the bumper body (1), the upper end and the lower end of the groove (11) are respectively provided with an upper reinforcing strip (12) and a lower reinforcing strip (13), the upper reinforcing strip (12) is vertically provided with a plurality of thread fixing holes (12a) from top to bottom, and each thread fixing hole (12a) is sequentially arranged at equal intervals from left to right;

the lower reinforcing strip (13) is vertically provided with a plurality of limiting holes (13a) from top to bottom, the limiting holes (13a) are multiple, the limiting holes (13a) are sequentially positioned under the thread fixing holes (12a) from left to right, hollow bearing rods (3) are inserted into the thread fixing holes (12a), the top of each hollow bearing rod (3) is provided with a blind hole thread cap (31), the blind hole thread caps (31) are in threaded connection with the corresponding thread fixing holes (12a), and the bottom of each hollow bearing rod (3) is embedded into the corresponding limiting hole (13 a);

the middle parts of the hollow bearing rods (3) are connected with double-layer absorption strips (4), sleeves (41) are sequentially arranged on the double-layer absorption strips (4) from left to right, and the hollow bearing rods (3) are inserted into the corresponding sleeves (41) one by one.

2. A new type of light weight vehicle bumper as claimed in claim 1, characterized in that said upper and lower reinforcing strips (12, 13) are formed integrally with said bumper body (1).

3. A new type of light weight vehicle bumper according to claim 1, characterized in that the diameter of each of said threaded fixing holes (12a) is larger than the diameter of the limiting hole (13a), and the diameter of the corresponding blind hole screw cap (31) in each of said threaded fixing holes (12a) is larger than the diameter of the hollow pressure-bearing rod (3).

4. A new type of light automobile bumper according to claim 1, characterized in that the bottom of each limiting hole (13a) does not penetrate the shell of the lower reinforcing bar (13).

5. A new type of light weight vehicle bumper according to claim 1, characterized in that each of said sleeves (41) is formed integrally with said double layer absorbent strip (4).

6. A new type of light weight vehicle bumper according to claim 5, characterized by the fact that said double layer absorbent strip (4) is a strip of thermoplastic elastomer material.

7. The novel light automobile bumper as claimed in claim 1, wherein the outer surface of the bumper body (1) is a carbon fiber material base layer (1a), and a PE honeycomb framework layer (1b) is arranged on the inner side of the carbon fiber material base layer (1 a).

8. The novel light automobile bumper as claimed in claim 1, wherein the rear end faces of the upper reinforcing strip (12) and the lower reinforcing strip (13) are sequentially connected with a plurality of snap joints (14) in a hot melting mode from left to right, the heads of the snap joints (14) are in a circular truncated cone shape, and a gap is formed from the circular truncated cone to one end of the joint of the snap joints (14).

9. The novel light automobile bumper as claimed in claim 1, wherein the rear end faces of the upper reinforcing strip (12) and the lower reinforcing strip (13) are sequentially connected with a plurality of single-hole fastening pieces (15) in a hot melting mode from left to right, every two single-hole fastening pieces (15) are arranged in one group, and a spring (2) is arranged between every two single-hole fastening pieces (15).

10. A new type of light weight vehicle bumper according to claim 9 characterized in that each of said springs (2) is a C92D spring steel type impact resistant spring.