CN2698659Y

CN2698659Y - Buffer bumper of automobile

Info

Publication number: CN2698659Y
Application number: CN 200420027536
Authority: CN
Inventors: 王汉华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-31
Filing date: 2004-05-31
Publication date: 2005-05-11
Anticipated expiration: 2014-05-31

Abstract

The utility model relates to a buffer bumper installed on the foreside of an automobile and consisting of a front bumper [1] and a rear bumper [2] which are arranged in parallel. A plurality of spring sets are arranged transversely between the front bumper [1] and the rear bumper [2]. The utility model is characterized in that via holes [3] are arranged on the rear bumper [2] at the positions which correspond to each spring set. Each spring set comprises a compressed spring [4], a tension spring [5] and a coupling rod [6]. The front end of the coupling rod [6] is fixed to the front bumper [1], and the back end of the coupling rod [6] extends backwards through the via hole [3] of the rear bumper. The compressed spring [4] is covered on the front end of the coupling rod [6]. One end of the compressed spring [4] is connected with the front bumper [1], and the other end is connected with the rear bumper [2]. The tension spring [5] is covered on the back section of the coupling rod while one end of the tension spring [5] is connected with the rear bumper [2] and the other end is connected with the back end of the coupling rod [6]. The utility model has favorable impact buffering effect and reasonable and reliable structure, which can not influence the beauty of the automobile body.

Description

Automatic buffer bumper

Technical field

The utility model relates to a kind of safety guard for automobile, is specifically related to a kind of buffer bumper that automotive front plays the safety precaution effect that is installed in.

Background technology

In today of industrial civilization high development, automobile has become the important vehicle of people.Enjoy the high efficient and convenient while that automobile brings people, also can not ignore the disaster that traffic accident brings.According to statistics, the annual whole world reaches 180,000 more than because of the number of traffic accident death, and directly indirect material damage is difficult to estimate especially.Traffic accident has become a serious social concern.Particularly on express highway, rear-end collision happens occasionally, in the twinkle of an eye, several, tens, even collide before and after up to a hundred automobiles, though facilities such as the safety air bag that is equipped with in the automobile, safety pillow have been brought into play certain effect, reduced certain loss, but these facilities still dislike not enough.For the loss that further cuts down traffic accidents, people have installed bumper/spoiler at automotive front.Traditional bumper/spoiler is to make with channel-section steel, does not have elasticity, does not have buffering effect, can be called " hard thick stick ", when bump took place automobile, bumper/spoiler was " confronting the tough with toughnees ", the impulsive force that produces during bump is close to 100% ground and is delivered to vehicle body, gives vehicle body and takes advantage of manned member to damage.Therefore, the protection effect of this traditional bumper/spoiler is very unfavorable.Chinese patent discloses one December 26 nineteen ninety and has been called " automobile buffer safety device ", application number is 90206997.7 utility model patent, its scheme is to be provided with several stage clips between front buffer plate and back dash plate, and back dash plate and self-propelled vehicle front end safety lever are connected and fixed.Before this kind safety device is installed on bumper/spoiler, make bumper/spoiler become " soft thick stick ", have certain buffering effect when bump, but find to still have following deficiency in its actual use: 1, because such scheme has only used stage clip, the cushion effect that the stage clip of finite length can bear is less; 2, if with stage clip be provided with longer, front buffer plate will tremble in driving way, can have influence on the attractive in appearance of automobile on the one hand, when bump occurred in a side of front buffer plate, stage clip can be subjected to bending force on the other hand, made the buffering effect decline of stage clip; 3, in the such scheme, before safety device was installed on the bumper/spoiler of automobile, this device was exposed to outer, influences the attractive in appearance of vehicle body.

Summary of the invention

The utility model purpose provides a kind of automatic buffer bumper, and this bumper/spoiler improves on the basis of existing technology, has strengthened the buffering effect of its impact power, makes the structure of whole bumper/spoiler more reasonable, and can not influence the attractive in appearance of vehicle body.

For achieving the above object, the technical solution adopted in the utility model is: a kind of automatic buffer bumper, comprise the Qian Gang and the Hou Gang that be arranged in parallel, and transverse row is shown spring assembly between Qian Gang and the back thick stick; The position of corresponding each spring assembly offers through hole on the thick stick of described back; Described spring assembly comprises stage clip, extension spring and pitman, and on the thick stick, the through hole that the rear end is passed on the thick stick of back rearward extended before the front end of pitman was fixed on; Be with stage clip on the leading portion of pitman, on the thick stick, the other end was connected on the thick stick of back before this stage clip one end was connected; Be with extension spring on the back segment of pitman, an end of this extension spring is connected on the thick stick of back, and the other end is connected on the rearward end of pitman.

Related content and change interpretation in the technique scheme are as follows:

1, in the technique scheme, an end of described extension spring can be by screwed connection on the thick stick of back; Can establish a nut on the rearward end of pitman, the other end of extension spring is connected on the rearward end of pitman by this nut.

2, in the technique scheme, the two ends of described stage clip all can be by screwed connection on forward and backward thick stick.

3, in the technique scheme, the front end of described pitman and preceding thick stick can also can directly weld by screwed connection.

4, in the technique scheme, transverse row is shown 4～8 spring assembly between described Qian Gang and the back thick stick.

5, in the technique scheme, preferred plan is: the number of active coils of spring is 6 circles, spring external diameter 50mm, stage clip drift 100mm, extension spring drift 60mm.

6, in the technique scheme, spring, pitman and forward and backward thick stick are made by the high-quality spring steel.

7, the utility model not only can be placed in automobile the front portion as buffer bumper, also can be placed in the rear portion of automobile, to prevent other rear-end collision.

The utility model principle of work is: during use, back of the present utility model thick stick can be installed on the vehicle frame, when current thick stick is subjected to clashing into, before thick stick compressing stage clip tighten, and drive pitman and move backward, pitman is elongated extension spring, moment stage clip and the elastic force of extension spring superimposed, slowed down impulsive force.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model has adopted stage clip and extension spring simultaneously, makes stage clip and tension spring superimposed, on same cost raw MAT'L, just can improve buffering effect greatly.

2, because that stage clip of the present utility model need not be provided with is very long, only need get final product about 100mm, therefore in running car, preceding thick stick is impossible tremble, and when a side of preceding thick stick was impacted, stage clip was not prone to bending yet, can not have influence on buffering effect.

3, since the utility model by back thick stick direct mount on vehicle frame, extension spring is contracted in the vehicle frame bottom, have only the stage clip partial sum before thick stick be exposed on the external, and stage clip length also has only about 100mm, therefore, can not have influence on the attractive in appearance of vehicle body.

Description of drawings

Accompanying drawing 1 is looked scheme drawing for the master of present embodiment;

Accompanying drawing 2 is the cross-sectional schematic of accompanying drawing 1.

In the above accompanying drawing: 1, Qian Gang; 2, Hou Gang; 3, through hole; 4, stage clip; 5, extension spring; 6, pitman; 7, nut.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1, accompanying drawing 2, a kind of automatic buffer bumper comprises the preceding thick stick 1 and the back thick stick 2 that be arranged in parallel, and transverse row is shown several spring assembly between preceding thick stick 1 and the back thick stick 2; The position of corresponding each spring assembly offers through hole 3 on the thick stick of described back; Described spring assembly comprises stage clip 4, extension spring 5 and pitman 6, and on the thick stick 1, the through hole 3 that the rear end is passed on the thick stick of back rearward extended, and is provided with a nut 7 on pitman 6 rearward end before the front end of pitman 6 was welded on; On the leading portion of pitman 6, be with stage clip 4, an end of this stage clip by screwed connection on preceding thick stick 1, the other end by screwed connection the back thick stick 2 on; Be with extension spring 5 on the back segment of pitman, on the thick stick 2 of back, the other end is connected on the rearward end of pitman 6 by nut 7 end of this extension spring 5 by screwed connection.Transverse row is shown 8 spring assembly between preceding thick stick 1 and the back thick stick 2.The number of active coils of spring is 6 circles, spring external diameter 50mm, stage clip drift 100mm, extension spring drift 60mm.Above-mentioned spring, pitman and forward and backward thick stick are made by the high-quality spring steel.

Claims

1, a kind of automatic buffer bumper comprises the preceding thick stick [1] and the back thick stick [2] that be arranged in parallel, and transverse row is shown spring assembly between preceding thick stick [1] and the back thick stick [2], it is characterized in that: the position of corresponding each spring assembly offers through hole [3] on the thick stick of described back; Described spring assembly comprises stage clip [4], extension spring [5] and pitman [6], and the front end of pitman [6] is fixed on the preceding thick stick [1], and the through hole [3] that the rear end is passed on the thick stick of back rearward extends; Be with stage clip [4] on the leading portion of pitman [6], an end of this stage clip is connected on the preceding thick stick [1], and the other end is connected on the back thick stick [2]; Be with extension spring [5] on the back segment of pitman, an end of this extension spring [5] is connected on the back thick stick [2], and the other end is connected on the rearward end of pitman [6].

2, automatic buffer bumper according to claim 1 is characterized in that: described pitman [6] rearward end is provided with a nut [7], and the other end of extension spring [5] is connected on the rearward end of pitman [6] by this nut [7].

3, automatic buffer bumper according to claim 1 is characterized in that: transverse row is shown 4～8 spring assembly between described preceding thick stick [1] and the back thick stick [2].