Multistage efficient energy absorption seat backrest

Abstract

The invention provides a multistage efficient energy absorption seat backrest. A rear fixing board, a front fixing board and an energy absorption device are arranged in the backrest. The energy absorption device comprises two spring expansion type crushing pipes, a buffer folder and a spring locking device. One end of each spring expansion type crushing pipe is connected with the rear fixing board, and the other end of each spring expansion type crushing pipe is connected with the front fixing board. The two spring expansion type crushing pipes are arranged at the upper portion and the lower portion of the front fixing board. The buffer folder is arranged at the middle position of the front fixing board. The spring locking device is arranged corresponding to the buffer folder and used for locking the buffer folder. The multistage efficient energy absorption seat backrest is small in occupied space and can be used for three-stage efficient energy absorption when a person collides with a train seat, and the impact effect caused by the seat on the human body is reduced.

Description

technical field [0001] The invention relates to a multi-stage high-efficiency energy-absorbing seat back capable of considering collision strength, and belongs to the field of rail transportation. Background technique [0002] With the accelerated pace of life, high-speed railways are also developing in the direction of high density and high speed. The seat, as the contact part between people and the train, is an important element in the interaction between people and the train environment. However, the traditional seats currently designed basically focus on the research on the structure, shape and comfort of the train seats, while neglecting the safety research on the seats. The traditional seat is simply wrapped with sponge, which can only play a slight cushioning role. In addition, because trains are generally not equipped with safety belts, when a vehicle collides or an emergency occurs during high-speed operation, emergency parking will cause the occupant to collide w...

AI Technical Summary

Problems solved by technology

However, the traditional seats currently designed basically focus on the research on the structure, shape and comfort of train seats, while ignoring the research on the safety of the seats.

The traditional seat is simply wrapped with sponge, which can only play a slight cushioning effect

In addition, because trains are generally not equipped with safety belts, when a vehicle collides or an emergency occurs during high-speed operation, emergency parking will cause the occupant to collide with the back of the train seat, and this collision impact will endanger the occupant. life safety

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