Pressing and releasing device for fire work

Abstract

The invention provides a hot working pressing and releasing device. The hot working pressing and releasing device comprises a pressing assembly and a pluggable device assembly. The pressing assembly comprises a first pressing rod and a second pressing rod, the first pressing rod is fixedly arranged, and the second pressing rod is arranged in a sliding mode in the length direction of the pressing assembly so as to press and unlock all the effective loads. The pluggable device assembly comprises a pluggable pin, and the pluggable pin is provided with a pair of first inclined faces. The first pressing rod and the second pressing rod are correspondingly provided with clamping grooves, and the clamping grooves are provided with a pair of second slopes matched with the first slopes. When the pressing assembly is in a pressing state, the first pressing rod and the second pressing rod are connected, the inserting and pulling pin is inserted into the clamping groove, and the first inclined face abuts against the second inclined face. During pressing, the pre-tightening force of the pressing and releasing device is transmitted to the connecting inclined plane of the inserting and pulling pin and the pressing rod, component force in the moving direction of the inserting and pulling pin can be generated according to the stress condition, the pulling-out force needed by the inserting and pulling pin is greatly reduced, and therefore the internal explosive loading amount of the hot working inserting and pulling device is reduced, and the impact load generated when the hot working inserting and pulling device is detonated is reduced.

Description

technical field [0001] The invention relates to the technical field of compression and release, in particular to a pyrotechnic compression and release device. Background technique [0002] Payloads such as antenna front and solar wings are limited by the envelope of the launch vehicle fairing and the mission requirements of one arrow with multiple satellites. Usually, a deployable configuration design is adopted to realize the folding of the antenna front and solar wings during the launch phase. It is folded to one side of the spacecraft, and unlocked and unfolded into a flat surface after reaching the orbit. [0003] In the existing technology of pressing and releasing mechanism, according to the different working devices, the pressing and releasing mechanism is divided into two types: pyrotechnics and non-inflammables. Among them, the pyrotechnic pressing and releasing mechanism has the advantages of small size, simple structure, strong bearing capacity, short action time...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pyrotechnic compression release device, which is used to solve the problem in the prior art that the unlocking force required for unlocking the pyrotechnic compression release mechanism is relatively large, resulting in a large impact on the product, so as to reduce the impact on the product. Shock to small payloads during unlocking

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