CN2322837Y

CN2322837Y - Four-bar linkage overtaking collision protection device for vehicle

Info

Publication number: CN2322837Y
Application number: CN 98202323
Authority: CN
Inventors: 李博良
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-16
Filing date: 1998-03-16
Publication date: 1999-06-09
Anticipated expiration: 2008-03-16

Abstract

The utility model relates to an anticollision device of vehicles. The utility model is mainly comprises two fixing long plates, two adjustable swinging arms, two connection rods, two inclination supporting arms, a pipe frame, and two tension springs, wherein, the pipe frame is connected into integration by horizontal ring pipes of the upper part and the lower part and a plurality of vertical pipes, and the vertical pipes connect the horizontal ring pipes of the upper part and the lower part and the back sides of the horizontal ring pipes of the upper part and the lower part; the upper ends of the adjustable swinging arms are pivoted at the back end of the fixing long plates, and the lower ends of the adjustable swinging arms are fixed on the front sides of the pipe frame; the upper ends of the connection rods are fixed on the front sections of the fixing plates, and the lower ends of the inclination supporting arms are pivoted at the outer side of the adjustable swinging arms; the lower ends of the connection rods are pivoted with the upper ends of the inclination supporting arms and are connected with the lower ends of the tension springs. Therefore, the utility model can reliably protect tail collision, and the utility model can automatically raise when meets obstacles.

Description

Four connecting rods protect the device that knocks into the back

The utility model relates to a kind of anticollision device for vehicle, refers to that mainly four connecting rods of the small passenger car collision truck tailstock protect the device that knocks into the back.

At present, the most of highway of China is still small passenger car and truck all-purpose road, small passenger car knocks into the back truck and collides bottom the truck, accident easily gets into an accident, common truck afterbody is provided with fixing plane baffle plate frame, knocks into the back to prevent small passenger car, but has little effect, and when running into the road surface higher obstacle being arranged, the baffle plate frame can take place broken.

In view of this, the purpose of this utility model provides a kind of four connecting rod protective devices, is respectively equipped with movable arms at truck girder tail end and bottom, and support arm lower end bonded assembly tube frame stops that small passenger car pierces the truck bottom, and when running into the road barrier thing, tube frame can also be lifted and reset automatically.

The purpose of this utility model is achieved in that it mainly comprises two fixedly long slab, two adjustable swing arms, two connecting rods, two oblique support arms, a tube frame and two extension springs, and wherein tube frame is by last horizontal endless tube, following horizontal endless tube and connect many of upper and lower horizontal endless tube rear side and vertically fuse; Adjustable swing arm upper end is articulated in fixedly long slab rear end, and the lower end is fixed on the tube frame front side; Small end is articulated in fixedly long slab leading portion, and tiltedly the support arm lower ending pivot is connected on the adjustable swing arm outside, and the connecting rod lower end articulates with bearing pin with oblique support arm upper end and this bearing pin is connected the extension spring lower end.

The folded pipe of group more than all the compartment of terrain is provided with between the forward and backward side of upper and lower horizontal endless tube of aforementioned tube framework.

Owing to adopt such scheme: can protect reliably and knock into the back, simultaneously, when running into the road barrier thing, can also lift automatically.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model exemplary embodiments scheme drawing.

Fig. 2 the utility model exemplary embodiments tube frame schematic top plan view.

Among the figure: 1, fixedly long slab 2, adjustable swing arm 3, connecting rod 4, tiltedly support arm 5, tube frame 51, upward horizontal endless tube 52, horizontal endless tube 53, VERTICAL TUBE 54, folded pipe 6, extension spring down

Present embodiment mainly comprises two fixedly long slab 1, two adjustable swing arms 2, two connecting rods, 3, two oblique support arms 4, a tube frame 5 and two extension springs 6, as shown in Figure 1, 2, and wherein:

Two fixedly long slab 1 be the long strip type steel structure, as angle steel, and be connected on the symmetric position of both sides, truck girder bottom surface with the rear end with exposing.

Two adjustable swing arms 2 are that branch connects into an arm for upper and lower two sections adjustablely, and its upper end is articulated in fixedly long slab 1 rear end, and the lower end is fixed on the leading flank (being the front side edge of upper and lower horizontal endless tube 51,52) of tube frame 5.

Two connecting rods, 3 upper ends are articulated in the leading portion of adapter plate 1, and lower ending pivot is connected on oblique support arm 4 upper ends, and the lower end of this oblique support arm 4 is articulated in again on the adjustable swing arm 2 hypomeres outside.

One tube frame 5 (as: steel framework) is to be fused by last horizontal endless tube 51, following horizontal endless tube 52, VERTICAL TUBE 53 and folded pipe 54, the rear side of wherein upper and lower horizontal endless tube 51,52 (identical), connect with many VERTICAL TUBE 53 separately, again respectively between the forward and backward side of upper and lower horizontal

endless tube

51,52 all the compartment of terrain be provided with the folded pipe 54 of many groups, with the rigidity (absorbing the ability of impulsive force) of reinforced pipe framework 5.

Two extension springs, 6 upper ends are connected the truck girder outside, and the lower end is connected on connecting rod 3 and the oblique support arm 4 bonded assembly bearing pins, makes bearing pin be subjected to the pulling force of extension spring 6 all the time.

The principle of work of present embodiment is as follows:

When the car that knocks into the back collides the tube frame 5 of truck afterbody below, impulsive force is absorbed by VERTICAL TUBE 53, upper and lower horizontal

endless tube

51,52 and folded pipe 54, and the damage that alleviates car is when big as if impulsive force, adjustable swing arm 2 and tiltedly support arm 4 flexural deformations can stop that still car creeps into the truck bottom; When truck to overtake, when obstacle is met on ground, can go up swing backward by automatic ejector sleeve framework 5, during through obstacle, tube frame 5 recovers at truck tail end lower position again automatically.

Claims

1, a kind of four connecting rods protect the device that knocks into the back, it is characterized in that: it mainly comprises two fixedly long slab (1), two adjustable swing arms (2), two connecting rods (3), two oblique support arms (4), a tube frame (5) and two extension springs (6), and wherein tube frame (5) is by last horizontal endless tube (51), down horizontal endless tube (52) and the many VERTICAL TUBE (53) that connect upper and lower horizontal endless tube (51), (52) rear side fuse; Adjustable swing arm (2) upper end is articulated in fixedly long slab (1) rear end, and the lower end is fixed on tube frame (5) front side; Connecting rod (3) upper end is articulated in fixedly long slab (1) leading portion, and tiltedly support arm (4) lower ending pivot is connected on adjustable swing arm (2) outside, and connecting rod (3) lower end articulates with bearing pin with oblique support arm (4) upper end and this bearing pin is connected extension spring (6) lower end.

2,, it is characterized in that by the described four connecting rod protective devices of claim 1: between the upper and lower horizontal endless tube (51) of aforementioned tube framework (5), (52) forward and backward side all the compartment of terrain be provided with many folded pipes of group (54).