Automobile collision buffer device

Abstract

The invention discloses an automobile collision buffer device, and relates to the technical field of automobiles. Each energy-absorbing cylinder is connected to a spring energy-absorbing cylinder in a clearance fit manner; the spring energy-absorbing cylinder is connected to a hydraulic cylinder sleeve; the energy-absorbing cylinder is disposed in an energy-absorbing beam sleeve in a sliding manner; a spring limit rod is arranged at the bottom end of the energy-absorbing beam sleeve; the ends of the spring limit rod penetrate the energy-absorbing cylinder; push springs are arranged on the portion, under the energy-absorbing cylinder, of the spring limit rod in a penetrating manner; the bottom end of the energy-absorbing cylinder is in plugging connection with bolts; the bolts cooperate with electromagnets; limit pin sleeves are arranged on the upper side wall of the energy-absorbing beam sleeve; each limit pin sleeve is internally provided with a limit pin; a pressure spring is cooperatively arranged between each limit pin and the wall of the corresponding limit pin sleeve; the spring energy-absorbing cylinder is internally provided with energy-absorbing springs which are fixed to a spring positioning disc; and a piston rod is disposed in the hydraulic cylinder sleeve in a penetrating manner. The automobile collision buffer device improves automobile collision energy-absorbing effects, protects an automobile and pedestrians, reduces the damage to the front structure of the automobile, is low is cost, and is high in practicality.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile collision buffer device. Background technique [0002] As a convenient and efficient means of transportation, cars have entered thousands of households. With the increasing number of cars and the complex road conditions in our country, traffic accidents such as collisions and rear-end collisions are common. Therefore, the passive safety performance of cars is becoming more and more important. At present, the passive safety protection of vehicles often uses damage to the predecessor of the car to absorb the impact in exchange for reducing personnel injuries. When the collision force is large, the bumper can also protect the car body to a certain extent, but as the speed of the car becomes faster and faster, when the car collides, the huge inertial force will make the head of the car Or the tail is squeezed and severely deformed. At this time, the bumper cannot a...

AI Technical Summary

Problems solved by technology

[0003] The automobile collision triggering device in the prior art can adopt various methods such as spring triggering, compressed gas triggering or safety airbag triggering. The spring triggering cost is low and can be reused when it is not damaged, but the response is slow and the weight is large; the compressed gas triggering is simple. Yes, the cost is low, but it needs to occupy the space in the car; the triggering of the airbag can take into account the safety of the collision between the car and the pedestrian, but the cost is high

Images