Variable load energy absorber and a protective seat
A technology of energy absorbers and seats, which is applied in the field of anti-crash to meet the protection requirements
Active Publication Date: 2019-01-08
HUBEI UNIV OF ARTS & SCI
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Problems solved by technology
However, the existing load energy absorbers cannot better meet the protection requirements of occupants of different weights.
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[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0044] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention relates to the technical field of crash resistance and discloses a variable load energy absorber and a protective seat. The variable load energy absorber comprises an energy absorbing member, a cutting assembly and an adjusting assembly. The surface of the energy absorbing member is provided with a cutting groove, and both the first cutting groove and the second cutting groove have end faces for being cut. The first cutter head on the cage is capable of cutting the end face of the first cutting groove of the energy absorbing member when the cutting assembly slides downward, thereby absorbing energy of the cutting assembly falling. The first cutter head on the cage is capable of cutting the end face of the first cutting groove of the energy absorbing member when the cutting assembly slides downward. The second cutter head is selectively pushed to the second cutting groove by the adjusting block such that it can cut the end face of the second cutting groove as the cutting assembly slides in the first predetermined direction to absorb the falling energy. The ability of the variable load absorber to absorb load is adjustable, and the absorber can better meet the absorption of different loads. The protective seat comprises a variable load energy absorber and a seat body, and the seat body is connected to a holder of a cutting assembly, so that the protective requirements for falling of occupants with different weights can be better met.
Description
technical field [0001] The invention relates to the field of anti-crash technology, in particular to a variable load energy absorber and a protective seat. Background technique [0002] The anti-crash seat is an important part of helicopter design, and it is an important device to improve the survival rate of the occupants. The anti-crash characteristics of the seat directly determine the survival rate of the occupants on board. The core component of the anti-crash seat is the energy absorber, which limits the load transmitted from the fuselage to the occupant when the helicopter crashes, so as to reduce the casualty rate of the occupant in a survivable crash. The performance of the energy absorber directly determines the anti-crash performance of the seat. [0003] Most helicopter seats today use a fixed load energy absorber with an approximately constant load-displacement characteristic. For maximum performance within the seat occupant weight range, this constant load is...
Claims
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IPC IPC(8): B64D11/06
CPCB64D11/0619
Inventor 晏涛彭畅肖光润张海波刘玉辉刘海生王中任王友刘德政李月安
Owner HUBEI UNIV OF ARTS & SCI