CN201405810Y

CN201405810Y - Automotive rear bumper

Info

Publication number: CN201405810Y
Application number: CN200920085718XU
Authority: CN
Inventors: 刘文涛; 孙华龙
Original assignee: Xiangfan Dongsheng Machinery Co Ltd
Current assignee: Xiangfan Dongsheng Machinery Co Ltd
Priority date: 2009-05-11
Filing date: 2009-05-11
Publication date: 2010-02-17
Anticipated expiration: 2019-05-11

Abstract

An automotive rear bumper is arranged at the rear part of an automobile. The main body of the rear bumper is welded with a connecting bracket and a protective end cover; two connecting brackets at theexternal end are provided with a bolt respectively; the connecting brackets are connected with a rear bumper bracket by the bolts; the protective end cover is welded at two ends of the main body so as to seal the sharp angles at two ends of the rear bumper, avoid the exposure of the sharp angle and reduce the danger coefficient; the bolt on the connecting bracket can be connected in a welding way; and the cross-section of the main body can be an E-shaped bent surface or a rectangular steel or a channel steel. The automotive rear bumper has simple structure and low cost, can effectively improve the forcing condition of the bumper, reduce the deformation and comply with the international safety performance requirement.

Description

Automobile rear bumper

Technical field

The utility model relates to a kind of automobile rear bumper in the automobile manufacturing field.

Background technology

Along with developing rapidly of auto-industry and highway construction, the owning amount of automobile is increasing, and moving velocity also improves day by day simultaneously.But because each national economic situation difference, the level disparity that the road development is built is also very big, the phenomenon that off-square road and mixed road travel is very serious, and therefore the personal casualty that is caused by vehicle generation rear-end collision is occupied larger specific gravity in the traffic injury accident.Because the headstock of car is lower; truck chassis is than higher; the high capacity waggon in case car knocks into the back; headstock just in time pierces under the truck chassis; can provide the car front-body of protection not run into any obstruction; the substitute is fragile operator's compartment direct impact lorry crossbeam, the car occupant just has been unable to escape misfortune.

At present, the rear bumper of installing on the market is much undesirable, even has a lot of vehicles that rear bumper is not installed at all on request.According to investigation, the reason that a lot of car owners are reluctant to install rear bumper at first is that it costs an arm and a leg, and secondly is that general insurance thick stick safety performance is bad on the market, and the rear bumper on the automobile has seldom its effect of chance performance once more.

Summary of the invention

For solving the deficiency that prior art exists, the utility model provides a kind of automobile rear bumper, to realize both having met safety requirements, the low purpose of while cost.

The technical scheme that its technical matters that solves the utility model adopts is: be welded to connect support and protection end cap on the rear bumper main body, on two connection supports of outer end, bolt is housed, connect support by bolted connection to the rear bumper support, the protection end cap is welded on the two ends of main body, be in order to seal the acute angle at rear bumper two ends, avoid acute angle to expose, reduce danger coefficient; The bolt that connects on the support can connect by the mode of welding; The cross-sectional plane of main body can be E shape folding surface, also can be rectangle steel or channel-section steel.

The utility model compared with prior art, and is simple in structure, with low cost, can effectively improve the force-bearing situation of bumper/spoiler, reduces distortion, meets the safety performance requirement of GB.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model block diagram;

Fig. 2 is an A-A section-drawing of the present utility model.

Tonogram when Fig. 3 is the utility model test.

The specific embodiment

As shown in Figure 1, be welded to connect support 2 at the center of the utility model main body 1, with the center symmetry, be symmetrically welded and connected support 2 at the two ends of main body 1 respectively, weld bolt on two connection supports 2 of outer end, connection support 2, connects support 2 and also can be connected on the main body 1 with attaching parts by perforate on main body 1, connection support 2 to the rear bumper support by bolted connection; At the two ends of main body 1 welding protection end cap 3, to seal the acute angle at rear bumper two ends, avoid acute angle to expose, reduce danger coefficient, protection end cap 3 also can be connected on the main body 1 with attaching parts by perforate on main body 1, protection end cap 3.

As shown in Figure 2, the utility model main body 1 cross section is an E shape folding surface, also can adopt rectangle steel or channel-section steel.E shape folding surface is with respect to rectangle steel, and intensity is suitable with it, but weight reduces greatly; And with respect to channel-section steel, its rigidity, intensity all improve greatly, and crashworthiness is well represented.

As shown in Figure 3, the utility model is according to National Standard GB11567.2-2001 automobile and trailer rear lower requirement of shelter " test method, the bolt of support 2 will be connected, successively 5 different pieces of rear bumper main body 1 are applied the pressure of regulation, bumper/spoiler will produce distortion then, by measurement, verify whether bumper/spoiler has enough blocking capabilities to the vehicle of rear-end impact to the bumper/spoiler maximum deformation quantity.Test situation is as follows:

1, position, a P3 left side is loaded the power of 6.86KN, test back deflection is 10mm

2, position, a P2 left side is loaded the power of 27.44KN, test back deflection is 21mm

3, position among the P3 is loaded the power of 6.86KN, test back deflection is 5mm

4, the right position of P2 is loaded the power of 27.44KN, test back deflection is 20mm

5, the right position of P3 is loaded the power of 6.86KN, test back deflection is 11mm

By to the stressed of rear bumper and the distortion situation analysis, the utility model meets the safety performance requirement of GB.

Claims

1, a kind of automobile rear bumper comprises main body (1), it is characterized in that: on main body (1), be welded to connect support (2), on two connection supports (2) of outer end, bolt be housed, connect support (2) by bolted connection to the rear bumper support.

2, automobile rear bumper according to claim 1 is characterized in that: at the two ends of main body (1) welding protection end cap (3), to seal the acute angle at rear bumper two ends, avoid acute angle to expose, reduce danger coefficient.

3, automobile rear bumper according to claim 1 and 2 is characterized in that: the cross-sectional plane of main body (1) is an E shape folding surface.

4, automobile rear bumper according to claim 1 and 2 is characterized in that: the cross-sectional plane of main body (1) is a rectangle steel.

5, automobile rear bumper according to claim 1 and 2 is characterized in that: the cross-sectional plane of main body (1) is a channel-section steel.

6, automobile rear bumper according to claim 1 and 2 is characterized in that: the bolt that connects on the support (2) can connect by the mode of welding.