Car Progressive Booster Safety Bar

Abstract

The invention relates to an automotive safety anticollision device, in particular to a progressive pressurization bumper. The progressive pressurization bumper comprises a front bumper body arranged in front of chassis girders, the front bumper body is perpendicular to the direction of the chassis girders, guide rods are arranged at two ends of the front bumper body respectively, the guide rods are in front-back slide fit with the chassis girders, a transverse support rod parallel to the front bumper body is further arranged between the chassis girders, the transverse support rod and the front bumper body are provided with at least two hydraulic cylinders, multiple pressure relief holes are axially distributed in the side wall of each hydraulic cylinder, the pressure relief holes close to the bottom on the same hydraulic cylinder are connected with liquid storage tanks through pipelines, and the rest pressure relief holes are sealed through flexible plugs; the hydraulic cylinders are evenly distributed along the length direction of the transverse support rod, and the farther each hydraulic cylinder is from the middle of the transverse support rod, the larger the ratio between the corresponding hydraulic cylinder volume and the total area of the pressure relief holes is. By the bumper, gradual pressurization can be realized so as to buffer automobile inertia, and safety performance of the automobile is improved.

Description

technical field [0001] The invention relates to an automobile safety anti-collision device, in particular to a progressively pressurized safety bar. Background technique [0002] The safety protection device of the car, especially the bumper of the car plays a very important role in ensuring the safety of the car drivers and passengers. The existing automobile bumper mainly relies on the bumper shell to absorb the collision energy. The bumper is a steel sheet metal structure, which is usually directly fixed on the chassis girder. The chassis girder is evenly arranged on both sides of the chassis along the length of the car. Due to the rigid connection structure, the moment of head-on impact cannot well buffer the inertia of the car, which can easily cause damage to the car and injuries to the passengers. In addition, the bumper of the steel sheet metal structure has limited deformation. Under the limited deformation, its ability to absorb impact energy is not good enough, s...

AI Technical Summary

Problems solved by technology

The chassis girders are evenly arranged on both sides of the chassis along the length of the car. Due to the rigid connection structure, the moment of head-on collision cannot well buffer the inertia of the car, which can easily cause damage to the car and injuries to the passengers.

In addition, the bumper of the steel sheet metal structure has limited deformation. Under the limited deformation, its performance of absorbing impact energy is not good enough, so it cannot protect the life safety of the people in the vehicle with large inertia.

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