CN216232081U

CN216232081U - Buffer type double-layer anti-collision beam

Info

Publication number: CN216232081U
Application number: CN202122379733.9U
Authority: CN
Inventors: 刘文强; 姜国彦; 余磊
Original assignee: Huitai Taicang Auto Parts Co ltd
Current assignee: Huitai Taicang Auto Parts Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-08
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a buffer type double-layer anti-collision beam, which comprises: the energy-absorbing crumple sleeve comprises an energy-absorbing crumple sleeve, a first anti-collision beam and a second anti-collision beam, wherein the first anti-collision beam is arranged in front of the second anti-collision beam and is provided with an interval, the first anti-collision beam is provided with one or more strip-shaped plates, the second anti-collision beam is provided with a square tube, guide pillars which penetrate through the second anti-collision beam backwards are arranged at intervals on the back of the first anti-collision beam, guide holes corresponding to the guide pillars are formed in the back of the second anti-collision beam, the energy-absorbing crumple sleeve is concentrically sleeved on the guide pillars and is located between the back of the first anti-collision beam and the guide holes, and jacks corresponding to the energy-absorbing crumple sleeve are arranged on the front of the second anti-collision beam. Through the mode, the buffering double-layer anti-collision beam disclosed by the utility model has the advantages that when the first anti-collision beam is stressed, the force is buffered and removed by utilizing the crumple deformation of the energy-absorbing crumple sleeve, the maintenance cost of small collision is reduced, and the bending strength is ensured.

Description

Buffer type double-layer anti-collision beam

Technical Field

The utility model relates to the technical field of anti-collision beams, in particular to a buffer type double-layer anti-collision beam.

Background

In order to improve the safety of the vehicle, most automobiles are provided with the anti-collision beams which are arranged on the inner side of the bumper, the bumper usually adopts a plastic shell, the plastic shell can elastically buffer and reduce the injury to pedestrians during collision, the anti-collision beams are made of aluminum alloy and steel, the strength is higher, and the damage to other parts of the vehicle and personnel in the vehicle can be reduced during strong collision.

Although the anti-collision beam has higher strength and can resist the impact from the front, the anti-collision beam often cannot absorb energy, and an energy absorption box is usually additionally arranged to collapse and absorb energy when the impact occurs, so that the damage to the longitudinal beam is reduced. The task of crumpling and absorbing energy is given to the energy absorption box, and the anti-collision beam is in rigid connection with the energy absorption box, so that once the anti-collision beam is stressed, the force is transmitted to the energy absorption box without reservation, local small collision also easily causes deformation of the anti-collision beam and the energy absorption box, the energy absorption box cannot be easily repaired after crumpling, and can only be replaced generally, and the cost of subsequent maintenance is increased.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a buffer type double-layer anti-collision beam, which realizes the collapse energy absorption of the anti-collision beam and reduces the deformation of an energy absorption box.

In order to solve the technical problems, the utility model adopts a technical scheme that: there is provided a bumper type double-deck impact beam, comprising: the energy-absorbing crumple sleeve comprises an energy-absorbing crumple sleeve, a first anti-collision beam and a second anti-collision beam, wherein the first anti-collision beam is arranged in front of the second anti-collision beam and is provided with an interval, the first anti-collision beam is provided with one or more strip-shaped plates, the second anti-collision beam is provided with a square tube, guide pillars which penetrate through the second anti-collision beam backwards are arranged at intervals on the back of the first anti-collision beam, guide holes corresponding to the guide pillars are formed in the back of the second anti-collision beam, the energy-absorbing crumple sleeve is concentrically sleeved on the guide pillars and is located between the back of the first anti-collision beam and the guide holes, and jacks corresponding to the energy-absorbing crumple sleeve are arranged on the front of the second anti-collision beam.

In a preferred embodiment of the present invention, when a strip-shaped plate is used as the first impact beam, the strip-shaped plate extends along the length direction of the second impact beam.

In a preferred embodiment of the present invention, when the first impact beam is a plurality of strips, the plurality of strips are spaced apart along the length of the second impact beam.

In a preferred embodiment of the present invention, the second impact beam is an aluminum alloy square tube with a cross section in a shape like a Chinese character 'ri'.

In a preferred embodiment of the utility model, the diameter of the insertion hole is larger than that of the guide hole, and the diameter of the outer circle of the energy-absorbing crumple sleeve is larger than that of the guide hole.

In a preferred embodiment of the present invention, a clamp spring is disposed on the guide post and located on the back of the second anti-collision beam.

In a preferred embodiment of the present invention, the first anti-collision beam is provided with positioning holes corresponding to the guide pillars one to one, the head of each guide pillar is integrally provided with a positioning pillar extending into the positioning hole, the positioning pillar is welded and fixed in the positioning hole, and the diameter of the positioning pillar is smaller than that of the guide pillar.

In a preferred embodiment of the utility model, the outer wall of the energy-absorbing crumple sleeve is provided with a crumple waist hole extending along the axial direction.

In a preferred embodiment of the utility model, the energy-absorbing crumple sleeve is a plastic sleeve or a steel sleeve.

The utility model has the beneficial effects that: the utility model provides a buffer type double-layer anti-collision beam, which is characterized in that a first anti-collision beam and a second anti-collision beam are specially designed, the first anti-collision beam is suspended in front of the second anti-collision beam by utilizing a guide pillar, when the first anti-collision beam is stressed, impact force can be transmitted to an energy-absorbing crumple sleeve, and the force is buffered by utilizing the crumple deformation of the energy-absorbing crumple sleeve, so that the deformation of the first anti-collision beam and the second anti-collision beam is reduced, and the deformation problem of a rear energy-absorbing box is further reduced, so that the maintenance cost of small collision is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of a bumper-type double-deck impact beam according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the energy absorbing and collapsing sheath of FIG. 2;

fig. 4 is a schematic structural view of another preferred embodiment of a bumper-type double-deck impact beam according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, an embodiment of the utility model includes:

the impact-absorbing type double-deck impact beam shown in fig. 1 and 2 includes: energy-absorbing ulcerate cover 6, first anticollision roof beam 1 and second anticollision roof beam 2 that contracts, first anticollision roof beam 1 sets up in the place ahead of second anticollision roof beam 2 and leaves the interval, and first anticollision roof beam 1 adopts one or polylith strip shaped plate, and consequently, first anticollision roof beam 1 has two kinds of structures:

example 1:

as shown in fig. 1, in the present embodiment, the first impact beam 1 is a steel strip extending along the length direction of the second impact beam 2, and the first impact beam 1 and the second impact beam 2 may be parallel to maintain a uniform distance therebetween;

example 2:

as shown in fig. 4, in this embodiment, first anticollision roof beam 1 adopts polylith shaped plate, and polylith shaped plate is along 2 length direction interval distribution of second anticollision roof beam, and during the biasing collision, partial shaped plate atress warp, can keep the integrality of other shaped plate, reduces the maintenance cost.

As shown in fig. 2, the second impact beam 2 is a square pipe, and may be a straight pipe or a curved pipe with a radian. In the embodiment, the second impact beam 2 is an aluminum alloy square tube with a cross section in a shape like a Chinese character 'ri', and has light dead weight and high bending strength.

The back of the first anti-collision beam 1 is provided with guide pillars 3 which penetrate through the second anti-collision beam 2 backwards at intervals, in the embodiment, the guide pillars 3 are distributed on the back of the first anti-collision beam 1 at intervals in an upper row and a lower row, the first anti-collision beam 1 is supported, and the first anti-collision beam 1 is prevented from deflecting.

In this embodiment, be provided with the locating hole 11 with guide pillar 3 one-to-one on the first anticollision roof beam 1, the integration of guide pillar 3 head is provided with the reference column 5 that extends to in the locating hole 11, and the diameter of reference column 5 is less than the diameter of guide pillar 3, forms the step axis, cooperates with locating hole 11, and the equipment location on first anticollision roof beam 1 is convenient, can be with reference column 5 welded fastening in locating hole 11, stable in structure.

The back of second anticollision roof beam 2 is provided with the guiding hole 21 that corresponds with guide pillar 3, and second anticollision roof beam 2 openly is provided with the jack 22 that contracts cover 6 and correspond with the energy-absorbing, and guide pillar 3 loops through jack 22 and guiding hole 21 and extends to the 2 backs of second anticollision roof beam, and in this embodiment, be provided with the jump ring 4 that is located the 2 backs of second anticollision roof beam on the guide pillar 3, carry out the axial of guide pillar 3 spacing, avoid the pine to take off.

The energy-absorbing crumple sleeve 6 is concentrically sleeved on the guide pillar 3 and is positioned between the back of the first anti-collision beam 1 and the guide hole 21, in the embodiment, the diameter of the insertion hole 22 is larger than that of the guide hole 21, the diameter of the outer circle of the energy-absorbing crumple sleeve 6 is larger than that of the guide hole 21, the axial limiting of the energy-absorbing crumple sleeve 6 is carried out, when the first anti-collision beam 1 is stressed, the impact force can be transmitted to the energy-absorbing crumple sleeve 6, the crumple deformation of the energy-absorbing crumple sleeve 6 is utilized to buffer the unloading force, the deformation of the first anti-collision beam 1 and the second anti-collision beam 2 is reduced, the deformation problem of the energy-absorbing box behind the second anti-collision beam 2 is further reduced, and therefore the maintenance cost of small collision is reduced. In addition, when a large collision occurs, the first anti-collision beam 1 is attached to the second anti-collision beam 2 after the energy-absorbing crumple sleeve crumples for 6, so that the bending strength is increased, and the protection to the vehicle is improved.

The energy-absorbing crumple sleeve 6 can be a plastic sleeve or a steel sleeve, has a thin wall thickness and is easy to crumple and deform when axially stressed. In the embodiment, the outer wall of the energy-absorbing crumple sleeve 6 is provided with the crumple waist hole 61 extending along the axial direction, so that the crumple deformation effect of the energy-absorbing crumple sleeve 6 is ensured, and particularly when the energy-absorbing crumple sleeve 6 is made of a steel sleeve, the design of the crumple waist hole 61 is more necessary.

In conclusion, the buffer type double-layer anti-collision beam disclosed by the utility model can buffer and absorb energy during collision, reduces the deformation damage of the first anti-collision beam 1 and the second anti-collision beam 2, is favorable for improving the protection effect on a vehicle, and reduces the subsequent maintenance cost.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.

Claims

1. A double-deck crashproof roof beam of buffering formula which characterized in that includes: the energy-absorbing crumple sleeve comprises an energy-absorbing crumple sleeve, a first anti-collision beam and a second anti-collision beam, wherein the first anti-collision beam is arranged in front of the second anti-collision beam and is provided with an interval, the first anti-collision beam is provided with one or more strip-shaped plates, the second anti-collision beam is provided with a square tube, guide pillars which penetrate through the second anti-collision beam backwards are arranged at intervals on the back of the first anti-collision beam, guide holes corresponding to the guide pillars are formed in the back of the second anti-collision beam, the energy-absorbing crumple sleeve is concentrically sleeved on the guide pillars and is located between the back of the first anti-collision beam and the guide holes, and jacks corresponding to the energy-absorbing crumple sleeve are arranged on the front of the second anti-collision beam.

2. The impact-absorbing double-deck impact beam of claim 1, wherein when a strip-shaped plate is used as the first impact beam, the strip-shaped plate extends along the length of the second impact beam.

3. The impact-absorbing double-deck impact beam of claim 1, wherein when the first impact beam is a plurality of strips, the plurality of strips are spaced apart along the length of the second impact beam.

4. The buffer type double-layer anti-collision beam according to claim 1, wherein the second anti-collision beam is an aluminum alloy square tube with a cross section in a shape like a Chinese character 'ri'.

5. The impact-absorbing double-deck impact beam of claim 1, wherein the diameter of the insertion hole is larger than that of the guide hole, and the diameter of the outer circle of the energy-absorbing crumple sleeve is larger than that of the guide hole.

6. The impact-absorbing double-deck impact beam as claimed in claim 1, wherein a clamp spring is disposed on the guide post and on the back of the second impact beam.

7. The impact-absorbing double-deck impact beam as claimed in claim 1, wherein said first impact beam is provided with positioning holes corresponding to said guide posts, said guide post heads are integrally provided with positioning posts extending into said positioning holes, said positioning posts are welded and fixed in said positioning holes, and said diameter of said positioning posts is smaller than that of said guide posts.

8. The impact-absorbing double-deck impact beam as claimed in claim 1, wherein said energy-absorbing crumple sleeve is provided with an axially extending crumple waist hole in an outer wall thereof.

9. The impact-absorbing double-deck impact beam as claimed in claim 1, wherein said energy-absorbing crumple sleeve is a plastic sleeve or a steel sleeve.