CN210760634U

CN210760634U - Automobile front bumper

Info

Publication number: CN210760634U
Application number: CN201920440419.7U
Authority: CN
Inventors: 陈晓静; 王丹丹; 马海英; 郭丽娟; 涂亚楠
Original assignee: Huanghe Jiaotong University
Current assignee: Huanghe Jiaotong University
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-06-16
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses an automobile front bumper, which comprises a fixed frame and a front bumper shield, wherein the fixed frame and the front bumper shield are connected through a telescopic rod; an air bag cavity is arranged between the fixing frame and the front bumper shield, a supporting spring is arranged between the fixing frame and the air bag cavity, and an air bag is arranged in the air bag cavity. When the striking takes place, bumper before the car can utilize gasbag protection insurance, and supporting spring and telescopic link also can effectively cushion the impact force, can effectively reduce the impact force to the damage of driver and crew and automobile body to protection vehicle and driver and crew on the bigger degree, the utility model discloses extensive suitability has in automotive filed.

Description

Automobile front bumper

Technical Field

The utility model relates to the technical field of automobiles, in particular to car front 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. Two decades ago, the front and rear bumpers of the sedan are mainly made of metal materials, are stamped into U-shaped channel steel by using steel plates with the thickness of more than 3 millimeters, are subjected to surface treatment and chromium plating, are riveted or welded with a frame longitudinal beam, have a large gap with a body and are like an additional part. With the development of the automobile industry, automobile bumpers as an important safety device are also moving to the way of innovation. 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 addition to keeping the original protection function. To achieve this, the front and rear bumpers of cars are made of plastic, which is called plastic bumper.

The plastic bumper consists of three parts, namely an outer plate, a buffer material, a cross beam and the like. 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 with the thickness of about 1.5 mm; 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. The plastic used for the plastic bumper is mainly made of polyester series and polypropylene series materials by injection molding. However, the plastic bumper has a limited ability to absorb impact energy during impact, and the remaining impact force after the bumper is completely broken loses the cushioning, resulting in casualties and greater damage to vehicles.

The automobile is provided with the safety air bag to protect personnel, but the safety air bag is arranged in the automobile and cannot play a role in buffering a front bumper.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a front bumper of automobile can prevent that the bumper is broken in the twinkling of an eye, can accept the impact that comes from all directions.

The technical scheme of the utility model is that:

the utility model provides an automobile front bumper, which comprises a fixed frame and a front bumper shield, wherein the fixed frame and the front bumper shield are connected through a telescopic rod; an air bag cavity is arranged between the fixing frame and the front bumper shield, a supporting spring is arranged between the fixing frame and the air bag cavity, and an air bag is arranged in the air bag cavity.

Furthermore, the telescopic rod is formed by sleeving a sleeve and an inner rod, the sleeve is connected with the fixing frame, and the inner rod is connected with the front bumper shield.

Furthermore, a piezoelectric igniter is arranged at one end, close to the fixing frame, in the sleeve and electrically connected with the air bag cavity.

Furthermore, a sealing gasket is arranged at one end of the piezoelectric igniter facing the inner rod, and a spring is arranged at the tail part of the piezoelectric igniter.

Furthermore, the sleeve and the inner rod are in an elliptical ring shape, and a leather cup is arranged at one end of the inner rod close to the sleeve.

Furthermore, an extension spring is arranged in the extension rod cavity, one end of the extension spring is connected with the fixing frame, and the other end of the extension spring is connected with the front bumper shield.

Further, one side of the airbag cavity close to the fixing frame is provided with an air injection mechanism, and the air injection mechanism is electrically connected with the piezoelectric igniter.

Furthermore, the outer side of the air injection mechanism is provided with a fixed disk, one end of the fixed disk is provided with a groove, and the groove is fixedly connected with the air bag.

Furthermore, the front end of the air injection mechanism is provided with a partial pressure air leakage nut, the side wall of the partial pressure air leakage nut is provided with an air leakage hole, and the partial pressure air leakage nut is arranged in the air bag.

Furthermore, the end of the air bag cavity close to the front bumper shield is made of elastic materials, the end of the air bag cavity close to the fixing frame is made of metal materials, and elastic connecting pieces are arranged at the two ends of the air bag cavity.

The utility model discloses following beneficial effect has: when the striking takes place, bumper before the car can utilize gasbag protection insurance, and supporting spring and telescopic link also can effectively cushion the impact force, can effectively reduce the impact force to the damage of driver and crew and automobile body to protection vehicle and driver and crew on the bigger degree, the utility model discloses extensive suitability has in automotive filed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a longitudinal sectional structure of the telescopic rod of the present invention;

FIG. 3 is a schematic diagram of a longitudinal sectional structure of the telescopic rod of the present invention;

fig. 4 is a partially enlarged view of the area a in fig. 1.

Wherein 1 is a front bumper guard; 2, a telescopic rod; 3 is a fixing frame; 4 is a balloon lumen; 5 is an air injection mechanism; 6 is a support spring; 7 is a telescopic spring; 8 is a piezoelectric igniter; 9 is a gunpowder cavity; 10 is a fixed disk; 11 is a groove; 12 is a leather cup; 13 is a gasket; 14 is a rubber connector; 15 is a sleeve; 16 is an inner rod.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to fig. 1 to 4, but the structure of the present invention is not limited to this embodiment.

In the present invention, for convenience of description, the description of the relative position relationship of the components in the present invention is described according to the layout pattern of fig. 1, for example: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1.

The utility model provides an automobile front bumper, which comprises a front bumper shield 1 and a fixing frame 3, wherein the fixing frame 3 and the front bumper shield 1 are connected by a telescopic rod 2; an air bag cavity 4 is arranged between the fixing frame 3 and the front bumper shield 1, a supporting spring 6 is arranged between the fixing frame 3 and the front bumper shield 1, and an air bag is arranged in the air bag cavity 4.

Further, the telescopic rod is formed by sleeving a sleeve 15 and an inner rod 16, the sleeve 15 is connected with the fixed frame 3, and the inner rod 16 is connected with the front bumper shield 1.

Further, a piezoelectric igniter 8 is arranged at one end, close to the fixing frame 3, in the sleeve 15, and the piezoelectric igniter 8 is electrically connected with the air bag cavity 4.

Furthermore, a sealing gasket is arranged at one end of the piezoelectric igniter 8 facing the inner rod 16, and a spring is arranged at the tail part of the piezoelectric igniter 8.

Further, the sleeve 15 and the inner rod 16 are elliptical rings, and a leather cup 12 is arranged at one end of the inner rod 16 close to the sleeve 15.

Furthermore, an extension spring 7 is arranged in the cavity of the extension rod 2, one end of the extension spring 7 is connected with the fixing frame 3, and the other end of the extension spring is connected with the front bumper shield 1.

Further, one side of the air bag cavity 4 close to the fixing frame 1 is provided with an air injection mechanism 5, and the air injection mechanism 5 is electrically connected with the piezoelectric igniter 8.

Further, the outer side of the air injection mechanism 5 is provided with a fixed disc 10, one end of the fixed disc 10 is provided with a groove 11, and the groove 11 is fixedly connected with the air bag.

Furthermore, the front end of the air injection mechanism 5 is provided with a partial pressure air leakage nut, the side wall of the partial pressure air leakage nut is provided with an air leakage hole, and the partial pressure air leakage nut is arranged in the air bag.

Furthermore, the end of the air bag cavity 4 close to the front bumper shield 1 is made of elastic material, the end of the air bag cavity 4 close to the fixing frame 3 is made of metal material, and elastic connecting pieces 14 are arranged at two ends of the air bag cavity 4.

The utility model discloses in, when the gasbag did not aerify spread in gasbag chamber 4, unnecessary gasbag was put in recess 11 of fixed disk 10, and air jet system 5 aerifys in to the gasbag, and the gasbag inflation, the gaseous in the gasbag was unloaded to the nut that loses heart of partial pressure, made gasbag chamber can reuse.

The utility model discloses in, front bumper guard shield 1 is with rubber, can restore the front bumper of deformation when the gasbag is opened.

When the automobile front bumper is used, the front bumper shield 1 receives impact force from the outside firstly, the impact force can come from three directions in front, the impact force causes partial deformation of the front bumper shield 1, the partial deformation of the front bumper shield 1 deforms the rubber connecting piece 14 pressing the air bag cavity 4, the elastic material at one end of the air bag cavity 4 close to the front bumper shield 1 can play a role in buffering the front bumper shield 1, and the front bumper shield 1 is prevented from being broken when encountering the impact force; the telescopic link 2 shortens, interior pole 16 promotes leather cup 12 and removes to sleeve 15 inside, the internal gas of telescopic link 2 is compressed, the sealed pad 13 of oppression removes to mount 3 direction, piezoelectric igniter 8 is compressed deformation and produces voltage, voltage will pass to in the jet-propelled mechanism 5, the high-pressure spark discharge that piezoelectric igniter 8 produced ignites the powder in the powder chamber 9, gas rapid expansion, the gasbag in recess 11 of fixed disk 10 and the gasbag in the gasbag chamber 4 are inflated and are opened, the gasbag is opened and is resumeed the front bumper guard shield 1 that will warp, and cushion the impulsive force, can effectively reduce the damage of impact force to driver and passenger and automobile body, thereby protect vehicle and driver and passenger to a great extent.

The utility model discloses utilize multiple buffer structure to cushion the front bumper, gasbag chamber 4 can reduce the bumper damage and damage the injury of back impact force to driver and crew, can reuse, convenient maintenance, and the buffering reduces the hard collision many times when the striking takes place, has extensive suitability in the car safety field.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a car front bumper, includes mount and front bumper guard shield, its characterized in that: the fixed frame is connected with the front bumper shield through a telescopic rod; an air bag cavity is arranged between the fixing frame and the front bumper shield, a supporting spring is arranged between the fixing frame and the air bag cavity, and an air bag is arranged in the air bag cavity.

2. The automotive front bumper of claim 1, characterized in that: the telescopic rod is formed by sleeving a sleeve and an inner rod, the sleeve is connected with the fixing frame, and the inner rod is connected with the front bumper shield.

3. The automotive front bumper of claim 2, characterized in that: one end of the sleeve, which is close to the fixing frame, is provided with a piezoelectric igniter, and the piezoelectric igniter is electrically connected with the air bag cavity.

4. The automotive front bumper of claim 3, characterized in that: one end of the piezoelectric igniter facing the inner rod is provided with a sealing gasket, and the tail part of the piezoelectric igniter is provided with a spring.

5. The automotive front bumper of claim 2, characterized in that: the sleeve and the inner rod are in an elliptical ring shape, and a leather cup is arranged at one end of the inner rod close to the sleeve.

6. The automotive front bumper of claim 1, characterized in that: an extension spring is arranged in the extension rod cavity, one end of the extension spring is connected with the fixing frame, and the other end of the extension spring is connected with the front bumper shield.

7. The automotive front bumper of claim 3, characterized in that: one side of the air bag cavity close to the fixing frame is provided with an air injection mechanism, and the air injection mechanism is electrically connected with the piezoelectric igniter.

8. The automotive front bumper of claim 7, characterized in that: the outer side of the air injection mechanism is provided with a fixed disk, one end of the fixed disk is provided with a groove, and the groove is fixedly connected with an air bag.

9. The automotive front bumper of claim 7, characterized in that: the front end of the air injection mechanism is provided with a partial pressure air release nut, the side wall of the partial pressure air release nut is provided with an air release hole, and the partial pressure air release nut is arranged in the air bag.

10. The automotive front bumper of claim 1, characterized in that: the end of the air bag cavity close to the front bumper shield is made of elastic materials, the end of the air bag cavity close to the fixing frame is made of metal materials, and elastic connecting pieces are arranged at two ends of the air bag cavity.