CN211001214U

CN211001214U - Front bumper foam energy-absorbing block convenient to mount

Info

Publication number: CN211001214U
Application number: CN201921762162.3U
Authority: CN
Inventors: 莫汉华
Original assignee: Changzhou Hanhua Foam Plastic Packaging Material Co ltd
Current assignee: Changzhou Hanhua Foam Plastic Packaging Material Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-14
Anticipated expiration: 2029-10-21

Abstract

The utility model relates to the technical field of automobiles, in particular to a foam energy absorption block of a front bumper with convenient installation, which solves the problems existing in the prior art that the existing energy absorption block of the bumper is basically a foam energy absorption block, and the foam energy absorption block is formed by hot pressing foaming PP (polypropylene) particles, but the energy absorption block has lower energy absorption efficiency, thus leading to poor buffering effect and poor using effect; and the easy skew mounted position in position of energy-absorbing piece causes the trouble problem of installation, including foam energy-absorbing shell, the inboard difference fixed mounting of foam energy-absorbing shell has second foam buffer block and two first foam energy-absorbing pieces, every the draw-in groove has all been seted up to the front surface of first foam energy-absorbing piece, the both sides of second foam buffer block all are provided with a plurality of recesses, just the holding tank, every have all been seted up to the upper and lower surface of second foam buffer block the inboard equal fixed mounting of holding tank has a plurality of buffer spring.

Description

Front bumper foam energy-absorbing block convenient to mount

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a front bumper foam energy-absorbing piece with be convenient for installation.

Background

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 front and rear bumpers of the automobile are stamped into channel steel by steel plates and riveted or welded with the frame longitudinal beam for many years, and a large gap is reserved between the channel steel and the automobile body, so that the front and rear bumpers of the automobile are quite unattractive. With the development of the automobile industry and the extensive use of engineering plastics in the automobile industry, automobile bumpers have also been revolutionized as an important safety device. The front and rear bumpers of the sedan car of today are required to be harmonious and unified with the shape of the car body and to be light in weight in itself, besides maintaining the original protection function. The plastic bumper of a common automobile consists of three parts, namely 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 into a U-shaped groove by a cold-rolled sheet; the outer plates and the cushioning material are attached to the cross member. In an automobile traffic accident, the leg of a pedestrian is a key part which is very vulnerable to injury, and particularly, the leg of the pedestrian is easy to collide with an automobile engine hood and a front bumper. For this purpose, in some current vehicle designs, an energy-absorbing bumper block is arranged between the bumper and the skin on the vehicle. When collision happens, the energy absorption block deforms to absorb part of energy of the collision part.

The existing bumper energy absorption block is basically a foam energy absorption block, and the foam energy absorption block is formed by hot-pressing foamed PP (polypropylene) particles, but the energy absorption block has low energy absorption efficiency, so that the buffer effect is poor and the use effect is poor; and the structure is simple, and when the energy absorption block is installed and fixed, the position of the energy absorption block is easy to deviate from the installation position, so that the problem of troublesome installation is caused. To this end, a foam energy absorption block with a front bar that is easy to install is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing bumper energy absorption block is basically a foam energy absorption block in the prior art, the foam energy absorption block is formed by hot pressing foamed PP (polypropylene) particles, but the energy absorption efficiency of the energy absorption block is low, so that the buffering effect is poor and the using effect is poor; the structure is simple, and the position of the energy-absorbing block is easy to deviate from the installation position when the energy-absorbing block is installed and fixed, so that the installation is troublesome.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a front bar foam energy-absorbing piece with be convenient for installation, includes foam energy-absorbing shell, the inboard difference fixed mounting of foam energy-absorbing shell has second foam buffer block and two first foam energy-absorbing pieces, every the draw-in groove has all been seted up to the front surface of first foam energy-absorbing piece, the both sides of second foam buffer block all are provided with a plurality of recesses, just the holding tank, every have all been seted up to the upper and lower surface of second foam buffer block the equal fixed mounting in inboard of holding tank has a plurality of buffer spring.

Preferably, the mounting groove has been seted up to the equal symmetry of the inner chamber upper and lower surface of draw-in groove, every the equal fixed mounting in inboard of mounting groove has the cavity body, the inboard symmetrical fixed mounting of the cavity body has reset spring, two the common fixedly connected with movable block of reset spring's the one end, one side fixedly connected with of movable block runs through the stopper of the cavity body.

Preferably, gaps are formed in the upper surface and the lower surface of the foam energy-absorbing shell, and a plurality of hollow holes are symmetrically formed in the inner side of the foam energy-absorbing shell.

Preferably, the hollow holes are of a uniform rectangular structure, and are located between the first foam energy absorption block and the second foam buffer block.

Preferably, the first foam energy-absorbing block and the second foam buffer block are respectively fixed with the foam energy-absorbing shell through gluing, and the clamping groove is of an arc-shaped structure.

Preferably, the upper surface and the lower surface of the first foam energy absorption block are provided with fixing bolt holes, and each fixing bolt hole is communicated with the clamping groove.

The utility model has the advantages that:

1. the utility model discloses be provided with first foam energy-absorbing piece, second foam energy-absorbing piece, evenly be provided with a plurality of buffer spring in the inside of second foam energy-absorbing piece simultaneously, can strengthen the inside buffer capacity of foam energy-absorbing shell, energy-absorbing efficiency is higher, and the result of use is better.

2. The utility model discloses seted up breach and hollow hole respectively on foam energy-absorbing shell, both alleviateed the weight of foam energy-absorbing shell, reduced the bulk strength again so that abundant energy-absorbing, reinforcing buffer capacity.

3. The utility model discloses be provided with the draw-in groove and can realize carrying out spacing on the direction about going on to the anticollision roof beam, simultaneously under reset spring's effect, realize that the stopper carries out spacing on the horizontal direction to the anticollision roof beam, when installing fixedly, the skew mounted position can not be carried out to the position of energy-absorbing piece, can not cause the trouble problem of installation.

Drawings

Fig. 1 is a schematic structural diagram of a foam energy absorption block with a front bumper, which is provided by the present invention and is convenient for installation;

fig. 2 is a top view of a foam energy absorbing block with a front bumper for easy installation according to the present invention;

fig. 3 is a partial enlarged view of a portion a of a foam energy absorbing block with a front bumper, which is provided by the present invention and is convenient to install.

In the figure: 1 first foam energy-absorbing piece, 2 stopper, 3 buffer spring, 4 breachs, 5 holding tanks, 6 second foam buffer blocks, 7 recesses, 8 hollow holes, 9 foam energy-absorbing shell, 10 draw-in grooves, 11 fixing bolt holes, 12 cavity bodies, 13 movable blocks, 14 reset spring, 15 mounting grooves.

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. 1-3, a front bar foam energy-absorbing block convenient to install comprises a foam energy-absorbing shell 9, a second foam buffer block 6 and two first foam energy-absorbing blocks 1 are fixedly installed on the inner side of the foam energy-absorbing shell 9 respectively, a clamping groove 10 is formed in the front surface of each first foam energy-absorbing block 1, a plurality of grooves 7 are formed in two sides of the second foam buffer block 6, accommodating grooves 5 are formed in the upper surface and the lower surface of the second foam buffer block 6, and a plurality of buffer springs 3 are fixedly installed on the inner side of each accommodating groove 5.

Further, mounting groove 15 has been seted up to the equal symmetry of the upper and lower surface of inner chamber of draw-in groove 10, the equal fixed mounting in inboard of every mounting groove 15 has the cavity body 12, the inboard symmetry fixed mounting of the cavity body 12 has reset spring 14, the common fixedly connected with movable block 13 of the one end of two reset springs 14, one side fixedly connected with of movable block 13 runs through the stopper 2 of the cavity body 12, is convenient for with stopper 2 and anticollision roof beam block.

Furthermore, the upper surface and the lower surface of the foam energy-absorbing shell 9 are both provided with the notches 4, and the inner side of the foam energy-absorbing shell 9 is symmetrically provided with the plurality of hollow holes 8, so that the weight of the foam energy-absorbing shell 9 is reduced, and the overall strength is reduced so as to fully absorb energy.

Further, the hollow holes 8 are of a uniform rectangular structure, and the hollow holes 8 are located between the first foam energy absorption block 1 and the second foam buffer block 6.

Furthermore, the first foam energy absorption block 1 and the second foam buffer block 6 are respectively fixed with the foam energy absorption shell 9 through gluing, and the clamping groove 10 is of an arc-shaped structure, so that the first foam energy absorption block 1 and the second foam buffer block 6 are respectively firmly connected with the foam energy absorption shell 9.

Furthermore, fixing bolt holes 11 are formed in the upper surface and the lower surface of the first foam energy absorption block 1, and each fixing bolt hole 11 is communicated with the clamping groove 10, so that the first foam energy absorption block 1 is conveniently and fixedly connected with the anti-collision beam through a fixing bolt.

In this embodiment, when the installation is performed, the foam energy-absorbing housing 9 is clamped at the outer side of the anti-collision beam, so that the middle portion of the foam energy-absorbing housing is in close contact with the second foam buffer block 6, meanwhile, the anti-collision beam is clamped into the clamping groove 10 formed in the first foam energy-absorbing block 1, at this time, under the elastic action of the return spring 14, the movable block 13 drives the limit block 2 to be clamped at the outer side of the anti-collision beam, and the first foam energy-absorbing block 1 is fixedly connected with the anti-collision beam through the fixing bolt hole 11 by using the fixing bolt. On foam energy-absorbing shell 9, breach 4 has all been seted up to the lower surface, and a plurality of hollow holes 8 have been seted up to foam energy-absorbing shell 9's inboard symmetry, both alleviateed foam energy-absorbing shell 9's weight, the bulk strength has been reduced again so that abundant energy-absorbing, when foam energy-absorbing shell 9 receives external force collision, first foam energy-absorbing piece 1, deformation all takes place for second foam buffer block 6, cause the extrusion to buffer spring 3, can strengthen the inside buffer capacity of foam energy-absorbing shell 9, improve energy-absorbing efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a front bar foam energy-absorbing piece with be convenient for installation, includes foam energy-absorbing shell (9), its characterized in that, the inboard difference fixed mounting of foam energy-absorbing shell (9) has second foam buffer block (6) and two first foam energy-absorbing pieces (1), every draw-in groove (10) have all been seted up to the front surface of first foam energy-absorbing piece (1), the both sides of second foam buffer block (6) all are provided with a plurality of recesses (7), just holding tank (5), every have all been seted up to the upper and lower surface of second foam buffer block (6) the inboard equal fixed mounting of holding tank (5) has a plurality of buffer spring (3).

2. The front bumper foam energy absorption block convenient to mount according to claim 1, wherein mounting grooves (15) are symmetrically formed in the upper and lower surfaces of the inner cavity of the clamping groove (10), a cavity body (12) is fixedly mounted on the inner side of each mounting groove (15), return springs (14) are symmetrically and fixedly mounted on the inner sides of the cavity body (12), a movable block (13) is fixedly connected to one end of each of the two return springs (14), and a limit block (2) penetrating through the cavity body (12) is fixedly connected to one side of each of the movable blocks (13).

3. The bumper foam energy absorption block convenient to mount according to claim 1, wherein the upper surface and the lower surface of the foam energy absorption shell (9) are provided with notches (4), and a plurality of hollow holes (8) are symmetrically formed in the inner side of the foam energy absorption shell (9).

4. A bumper foam energy absorber block with ease of installation according to claim 3 wherein the hollow holes (8) are of uniform rectangular configuration and the hollow holes (8) are located between the first foam energy absorber block (1) and the second foam bumper block (6).

5. The foam energy absorption block with the conveniently installed front bumper is characterized in that the first foam energy absorption block (1) and the second foam buffer block (6) are fixed with the foam energy absorption shell (9) through gluing respectively, and the clamping grooves (10) are of arc-shaped structures.

6. The foam energy absorption block for the front bumper is convenient to mount according to claim 1, and is characterized in that fixing bolt holes (11) are formed in the upper surface and the lower surface of the first foam energy absorption block (1), and each fixing bolt hole (11) is communicated with a clamping groove (10).