a protective seat

Abstract

The invention relates to the field of safety equipment and discloses a protective seat. The protective seat comprises an energy absorbing frame provided with a variable load energy absorbing device and a riding frame for carrying occupants. The variable load energy absorbing device comprises an energy absorbing member and a cutting assembly connected with the energy absorbing member. When the energy absorbing member is cut by the cutting assembly, the resistance provided by the energy absorbing member to the cutting assembly is adjustable. A ride frame for carrying an occupant, the ride framebeing connected to the cutting assembly. The protective seat absorbs the impact load by cutting, so that the kinetic energy of the occupant and the occupant can be used for cutting the energy absorbing parts, and the momentum of the occupant is gradually reduced, so as to reduce the injury caused by the impact of the occupant. The ystem and method for interlocking adjustment of child safety seat isofix and backrest of the present invention utilizes a variable load absorber capable of adjusting resistance, so that the gear position can be adjusted by adjusting the cutting resistance of the cutting assembly relative to the energy absorbing member so that the shield seat can meet the protection requirements of occupants of different weights.

Description

technical field [0001] The invention relates to the field of safety equipment, in particular to a protective seat. Background technique [0002] Armored vehicle occupants spend most of their time sitting while performing tasks, and seat systems have an important impact on factors such as their fatigue and survivability. When a landmine or improvised explosive device explodes at the bottom of the vehicle, even if the vehicle body itself is not seriously damaged, the impact of the explosion will cause damage to the occupants in the vehicle. High-performance explosion-resistant seat. [0003] The energy-absorbing device is the core component of the explosion-resistant seat. When the armored vehicle encounters an explosion impact, it absorbs the impact energy transmitted to the seat to limit the load transmitted to the occupant and reduce the occupant's ability to survive accidents (the armor is not damaged. wear) under the casualty rate. Usually, in order to exert the greate...

AI Technical Summary

Problems solved by technology

Usually, in order to exert the greatest performance within the weight range of the seat occupant, the working load of the energy-absorbing device is designed according to the weight of the 50th percentile seat occupant, which can only provide the best protection for the 50th percentile occupant, and the rest Heavy occupants do not provide better protection

When the vehicle is blown up, the lighter occupants may bear the acceleration exceeding the tolerance limit of the human body and cause damage, and the heavier occupants may be lowered to the lowest point when the vehicle lands, hitting the vehicle floor and causing a secondary impact

Therefore, the existing armored vehicle equipment cannot better meet the protection requirements of occupants of different weights.

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