Equipment airborne multi-stage airbag cooperative buffering device

Abstract

The invention discloses an equipment airborne multi-stage airbag cooperative buffering device. The equipment airborne multi-stage airbag cooperative buffering device comprises an upper airbag, an airbag tube column and a lower airbag; the upper airbag can exhaust air to the outside to reduce pressure by using an upper airbag exhaust valve and can also exhaust air to the airbag tube column by usinga combined exhaust valve I, and the airbag tube column expands to realize primary buffering; the airbag tube column can exhaust air to the outside to reduce the pressure by using an airbag tube column exhaust valve and can also exhaust air to the lower airbag by using a combined exhaust valve II, and the lower airbag expands to realize secondary buffering; and the lower airbag can exhaust air tothe outside to the reduce the pressure by using a lower airbag exhaust valve to realize three-stage buffering. According to the equipment airborne multi-stage airbag cooperative buffering device, through multi-stage buffering of the airbag cooperative buffering device, airborne equipment can be prevented from directly touching the ground multi-stage releasing of the pressure in the airbag can alsobe realized; and therefore, the airbag is prevented from exploded and safely landing of the airborne equipment is guaranteed.

Description

technical field [0001] The invention relates to the field of equipment airborne safety protection, in particular to a multi-stage airbag cooperative buffer device for equipment airborne. Background technique [0002] Due to its light weight and good energy absorption effect, the airbag cushioning device has been widely used in technical fields such as equipment airborne, drone recovery, space return, etc., and has become an important part of equipment safety. [0003] In the actual equipment airborne landing process, the existing airbag cushioning device has the following problems. [0004] Most of the existing landing airbag cushioning devices for airborne equipment use a single-chamber airbag cushioning device with a single structure, resulting in a single and limited setting of the initial cushioning pressure of the air chamber, resulting in limited cushioning effect. [0005] The existing single-chamber airbag cushioning device exhausts air outwards through the air vent...

AI Technical Summary

Problems solved by technology

However, in the process of equipment airborne landing buffer, if the vent hole of the airbag buffer device is too large, there will be a problem that the airborne equipment will directly touch the ground; If the exhaust speed is too slow, the airbag will explode, which will cause fatal damage to the airborne equipment

[0006] In order to overcome the shortcoming that the single-chamber airbag cushioning device is easy to explode, a small part of the prior art has used the technical scheme of the double-chamber airbag cushioning device: as the patent "multi-stage airbag combined buffering device" with the publication number CN1923617A, but this multiple The combined cushioning device of the first-stage airbag adopts a nested structure, which results in a limited effective buffer stroke; as the patent "dual-chamber airbag cushioning device" with the publication number CN1923618A, although this airbag cushioning device adopts the top air chamber of the airbag and the base air However, there is no other buffer device between the top air chamber and the bottom air chamber of the airbag, which still results in a limited effective buffer stroke, and the top air chamber and the bottom air chamber of the airbag are two separate independent air chambers, resulting in two The air chamber cannot coordinately buffer the airborne equipment, so it cannot play a good buffering effect on the airborne equipment

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