Protection device and manufacturing method of external sleeve type electronic detonator
A technology of electronic detonators and protection devices, which is applied in the direction of weapon accessories, fuzes, offensive equipment, etc., can solve the problems of rejecting explosions, achieve the effects of maintaining stability, avoiding blind shots, and wide sources
Inactive Publication Date: 2019-11-12
CHINA RAILWAY GUANGZHOU ENG GRP CO LTD +1
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Problems solved by technology
The delay and detonation of the digital electronic detonator are controlled by the chip and electronic network in the tube. Once the chip and electronic circuit of the detonator are damaged, they will no longer work, resulting in a failure to detonate.
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[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0028] refer to Figure 1 to Figure 4 , The present invention is a protection device and a manufacturing method of an overcoat type electronic detonator.
[0029] The protection device includes an electronic detonator 1 and a control chip 2 located in the electronic detonator 1. A metal sleeve 5 is arranged on the outside of the electronic detonator 1. Elastic rubber is arranged between the electronic detonator 1 and the metal sleeve 5. The electronic detonator 1 The first and last ends are flush with the first and last ends of the metal casing 5 .
[0030] Preferably, the metal sleeve 5 is a thin-walled steel pipe with a thickness of less than 2mm. One end of metal casing 5 establishes that internal diameter is t...
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The invention discloses a protection device and manufacturing method of an external sleeve type electronic detonator. The protection device comprises the electronic detonator, a metal sleeve on the outer side of the electronic detonator and a rubber layer located between the electronic detonator and the metal sleeve, wherein the electronic detonator, the metal sleeve and the rubber layer are in interference fit. According to the manufacturing method, the metal sleeve and a rubber sleeve can be manufactured separately, or the metal sleeve is manufactured first, then the interior of the metal sleeve is coated to form the rubber layer and finally the electronic detonator, the metal sleeve and the rubber layer are combined. Finally, the electronic detonator is protected by the high-strength metal sleeve, and misfire is effectively avoided. The protection device and the manufacturing method are used for the technical field of detonator detonation.
Description
technical field [0001] The invention relates to the technical field of detonator detonation, in particular to a protection device and a manufacturing method of an outer jacket type electronic detonator. Background technique [0002] The digital electronic detonator detonation system technology has basically matured, and its advanced nature, reliability, practicability, flexibility and safety have great advantages. Practical outlook. Electronic chips with intelligent features are installed in the digital electronic detonators, which are protected by triple passwords. According to the overall control principle of "one tube, one code, pre-control, and post-event traceability", the national administrative department can implement the control over the flow of civilian explosives. Even if it is lost or stolen, criminals can't use it without a password, and it won't explode, which minimizes the possibility of explosives being used by criminals to endanger society. Digital electron...
Claims
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IPC IPC(8): F42C19/12
CPCF42C19/12
Inventor 李雷斌张智斌周瑞杰吕文忠金沐张建军肖涛孙鹏
Owner CHINA RAILWAY GUANGZHOU ENG GRP CO LTD