Anti-crash seat adopting extruded tube type energy absorber

Abstract

The invention discloses an anti-crash seat adopting an extrusion tube type energy absorber. The anti-crash seat comprises seat stand columns, an upper cross rod, a lower cross rod, an extrusion pipe, a seat plate assembly and an extrusion seat assembly, the seat stand columns are fixedly mounted as a seat main framework, the upper cross rod and the lower cross rod sleeve the seat stand columns on the two sides in a sliding fit manner at the two ends, the extrusion pipe is parallel to the seat stand columns, the upper end and the lower end of the extrusion pipe are fixedly connected with the upper cross rod and the lower cross rod respectively, the seat plate assembly is fixedly installed on the lower cross rod, the extrusion seat assembly is fixedly installed on the seat stand columns and comprises a pair of extrusion rollers which are arranged side by side with a gap reserved, a narrowed flat area is arranged on the lower part of the extrusion pipe, the extrusion pipe passes through a gap between the extrusion rollers downwards through the flat area and then is clamped on the extrusion rollers, and the extrusion rollers roll from the two sides to extrude the extrusion pipe in the anti-crash process. The structure is simple, the weight of the seat can be reduced, the number of parts is small, reliability is high, the extrusion pipe and the seat stand columns are arranged in parallel, and the effectiveness of crash resistance and energy absorption of the seat is guaranteed.

Description

technical field [0001] The invention relates to an anti-crash seat, in particular to an anti-crash seat using an extruded tube type energy absorber. Background technique [0002] The energy absorber in the anti-crash seat is the key to realize the anti-crash function of the helicopter. The current energy absorbers include rolling tube type energy absorber, rolling type energy absorber, steel wire bending mechanism energy absorber, honeycomb structure energy absorber, Spiral rolling ring energy absorbers, crushing cylinder energy absorbers, folding cylinder energy absorbers, etc., the above-mentioned energy absorbers generally have problems such as complex structure and manufacturing process, and low applicability between the energy absorber and the main frame of the passenger seat. Contents of the invention [0003] The purpose of the present invention is to provide an anti-crash seat using extruded tube type energy absorber, which has a simple structure, can effectively r...

AI Technical Summary

Problems solved by technology

[0002] The energy absorber in the anti-crash seat is the key to realize the anti-crash function of the helicopter. The current energy absorbers include rolling tube type energy absorber, rolling type energy absorber, steel wire bending mechanism energy absorber, honeycomb structure energy absorber, Spiral rolling ring energy absorbers, crushing cylinder energy absorbers, folding cylinder energy absorbers, etc., the above-mentioned energy absorbers generally have problems such as complex structure and manufacturing process, and low applicability between the energy absorber and the main frame of the passenger seat.

Images