Fuse chamber interior ignition mechanism adopting detonator and space explosion suppression principle

Abstract

The invention discloses a fuse chamber interior ignition mechanism adopting a detonator and a space explosion suppression principle. The mechanism comprises a body, the needling detonator, a detonator base, pre-pressing springs and a fire transfer tube. The fire transfer tube comprises a fire transfer tube shell, fire transfer powder and a cover plate. An upward firing pin is arranged in the center of the top surface of the fire transfer tube shell. A sensitive explosion component for ignition is the needling detonator, the needling detonator is located on the detonator base and is a relative moving part, the firing pin located on the upper end face of the fire transfer tube shell is a fixed part, a pressure relief space is formed between the body and the detonator base, the parallel structure of the two pre-pressing springs can be adopted to improve the reliability, and fire transfer powder is insensitive fire transfer powder boron / potassium nitrate. In an assembly state, the needling detonator is far away from the fire transfer powder, the fire transfer powder is placed into the fire transfer tube shell to be sealed, and therefore the fire transfer powder cannot be ignited even though the needling detonator is accidentally ignited, and the needling detonator can be used for ignition when a gunpowder time fuse or a self-destruction gunpowder tray is launched. The fuse chamber interior ignition mechanism has the advantages of being good in safety, compact in size, simple in structure and low in price.

Description

technical field [0001] The invention relates to the technical field of fuze ignition, in particular to an in-bore ignition mechanism of a fuze adopting the principle of a detonator and a space flameproof. Background technique [0002] The ignition mechanism in the fuze chamber is a typical firing mechanism. Since the working environment it utilizes is a launch environment, which is relatively stable, its function is relatively reliable. It has been widely used in various gunpowder principle fuzes, such as gunpowder time fuze, gunpowder delayed release insurance fuze and gunpowder self-destruct fuze. However, in the traditional firing mechanism in the fuze chamber, whether the firing pin is fixed and the firing cap recoils or the cap is fixed and the firing pin recoils, the accidental firing of the cap will ignite the subsequent agent along the established fire transmission path, causing the fuze to accidentally ignite. It will ignite and explode (or make the fuze invalid),...

AI Technical Summary

Problems solved by technology

However, in the traditional firing mechanism in the fuze chamber, whether the firing pin is fixed and the firing cap recoils or the cap is fixed and the firing pin recoils, the accidental firing of the cap will ignite the subsequent agent along the established fire transmission path, causing the fuze to accidentally ignite. Fire and explode (or disable the fuze), posing a safety hazard

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