CN203623583U

CN203623583U - Multistage energy absorption rear protection device

Info

Publication number: CN203623583U
Application number: CN201320872995.1U
Authority: CN
Inventors: 武剑; 刘爽; 朱小龙
Original assignee: Shanxi Dayun Automobile Manufacturing Co Ltd
Current assignee: Dayun Automobile Co Ltd
Priority date: 2013-12-28
Filing date: 2013-12-28
Publication date: 2014-06-04
Anticipated expiration: 2023-12-28

Abstract

The utility model provides a multistage energy absorption rear protection device. The multistage energy absorption rear protection device solves the problems that an existing vehicle rear protection device is simple in structure and poor in safety. The multistage energy absorption rear protection device comprises a collision avoidance cross beam, wherein two inclined support arms are fixed behind the collision avoidance cross beam, a rear support arm is fixed at the tail end of each inclined support arm, a cross beam is connected between the two rear support arms, fixing plates are fixed at the tops of the two rear support arms, and the fixing plates are fixed together with the collision avoidance cross beam through energy absorption boxes. The multistage energy absorption rear protection device is reasonable in design, simple in structure, easy to manufacture, low in cost, and high in safety. According to the multistage energy absorption rear protection device, multistage energy absorption is achieved on the premise of enabling rear protection to be firm due to the fact that an energy absorption structure formed by the inclined support arms, the rear support arms and the cross beam is added on the basis of existing rear protection devices of vehicles and trailers and the fixing plates connected with a vehicle frame are added. Accordingly, the multistage energy absorption rear protection device can absorb energy generated by collision well, has a certain buffering function, and effectively reduces harm to a sedan car during the collision process.

Description

Multistage energy-absorbing rear

Technical field

The utility model relates to the rear of a kind of automobile or superimposed trailer, specifically a kind of multistage energy-absorbing rear.

Background technology

For reducing the generation of major traffic accidents, the particularly generation of the rear-end collision of car and heavy duty truck, standard law has stipulated that heavy duty truck and trailer must install rear additional, cause the infringement to car and occupant because knocking into the back to reduce, but in actual life, a lot of trucies are not all installed rear protecting, or it is all also simple several angle steel weld togethers that rear protecting has been installed, general automobile and trailer rear just extend certain length from vehicle frame or railway carriage welding, then guard rail is fixed, structure is relatively simple.But in collision process, such rear often can not stop the small passenger car rapidly coming, at the bottom of small passenger car still can pour car; The truck rear protecting also having is long neglected and in disrepair, once these trucies have an accident, rear protecting does not have prevent that small passenger car from piercing the effect of truck bottom completely, and this just requires the rear that designs crashproof intensity more greatly and can not come off easily, makes the injures and deaths of small passenger car in rear-end collision drop to minimum.

Summary of the invention

The purpose of this utility model is in order to solve above-mentioned problems of the prior art, and a kind of multistage energy-absorbing rear is provided, and it is mainly used in non-tractor truck vehicle.

The utility model is achieved by the following technical solution:

A kind of multistage energy-absorbing rear, comprise anti-collision beam, the rear wall two ends of anti-collision beam are vertically fixed with respectively a diagonal ligament arm, two diagonal ligament arms are arranged symmetrically with the center line of anti-collision beam, the end top of two diagonal ligament arms is vertically fixed with respectively a rear support arm, between two rear support arms, be fixedly connected with a crossbeam, the top of two rear support arms is fixed with an adapter plate jointly, adapter plate is vertical with rear support arm fixing, the length of adapter plate is greater than the spacing of two rear support arms, and the center line of adapter plate overlaps with the center line of anti-collision beam, the two ends of adapter plate are fixed with respectively an energy-absorption box, the other end of two energy-absorption boxes is fixed respectively (energy-absorption box is structure well-known to those skilled in the art) with anti-collision beam.

This is the structure of a multistage energy-absorbing, and anti-collision beam is as first order energy absorbing component, and diagonal ligament arm and energy-absorption box are in the second stage, and last remaining energy is absorbed by rear support arm and crossbeam.Multistage energy absorption device can well absorb the energy producing because of collision, plays certain buffer action, effectively reduces the harm in collision process, small passenger car being produced.In addition, the adapter plate of increase, rear support arm and crossbeam closely link together each parts, prevent that anti-collision beam comes off in collision process.

Further, described anti-collision beam is I-beam section.Anti-collision beam is the crashproof intensity that I-beam section has increased girder steel, and while making to knock into the back, the enormous impact energy distribution of generation is more even, increases energy absorption, reduces the injury to the manned vehicle that knocks into the back.

The utility model is reasonable in design, simple in structure, it is easy, with low cost, safe to make, the utility model protective device has increased the endergonic structure being made up of diagonal ligament arm, rear support arm and crossbeam on the basis of existing automobile and trailer rear, and increase the adapter plate of connecting vehicle frame, make rear protecting more firmly form multistage energy-absorbing simultaneously, thereby well absorb the energy producing because of collision, play certain buffer action, effectively reduce the harm in collision process, small passenger car being produced.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the birds-eye view of Fig. 1.

In figure: 1-anti-collision beam, 2-diagonal ligament arm, 3-rear support arm, 4-crossbeam, 5-adapter plate, 6-energy-absorption box.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described:

As Fig. 1, 2, shown in 3, a kind of multistage energy-absorbing rear, comprise anti-collision beam 1, the rear wall two ends of anti-collision beam 1 are vertically fixed with respectively a diagonal ligament arm 2, two diagonal ligament arms 2 are arranged symmetrically with the center line of anti-collision beam 1, the end top of two diagonal ligament arms 2 is vertically fixed with respectively a rear support arm 3, between two rear support arms 3, be fixedly connected with a crossbeam 4, the top of two rear support arms 3 is fixed with an adapter plate 5 jointly, adapter plate 5 is vertical with rear support arm 3 fixing, the length of adapter plate 5 is greater than the spacing of two rear support arms 3, and the center line of adapter plate 5 overlaps with the center line of anti-collision beam 1, the two ends of adapter plate 5 are fixed with respectively an energy-absorption box 6, the other end of two energy-absorption boxes 6 is fixing with anti-collision beam 1 respectively.

When concrete enforcement, described anti-collision beam 1 is I-beam section.

Claims

1. a multistage energy-absorbing rear, it is characterized in that: comprise anti-collision beam (1), the rear wall two ends of anti-collision beam (1) are vertically fixed with respectively a diagonal ligament arm (2), two diagonal ligament arms (2) are arranged symmetrically with the center line of anti-collision beam (1), the end top of two diagonal ligament arms (2) is vertically fixed with respectively a rear support arm (3), between two rear support arms (3), be fixedly connected with a crossbeam (4), the top of two rear support arms (3) is fixed with an adapter plate (5) jointly, adapter plate (5) is vertical with rear support arm (3) fixing, the length of adapter plate (5) is greater than the spacing of two rear support arms (3), and the center line of adapter plate (5) overlaps with the center line of anti-collision beam (1), the two ends of adapter plate (5) are fixed with respectively an energy-absorption box (6), the other end of two energy-absorption boxes (6) is fixing with anti-collision beam (1) respectively.

2. multistage energy-absorbing rear according to claim 1, is characterized in that: described anti-collision beam (1) is I-beam section.