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Automatic cover opening device

An automatic cover opening and front cover technology, applied in the direction of the launch device, can solve the problems of repeated disassembly and maintenance, chemical gas pollution, flammability and explosion, etc., and achieve reusable volume, low vibration and small size Effect

Active Publication Date: 2019-12-03
北京北机机电工业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The gas broken cover is to use the high-pressure gas generated by the combustion of fuel in the launch tube to impact the front cover and break it open. The destructive way of opening the cover makes the front cover of the launch tube only disposable, which seriously affects the engineering application. practicality and economy
[0004] At present, the commonly used pyrotechnic device opening methods mainly include explosive bolts, pyrotechnic nuts, pyrotechnic cutters, pyrotechnic pin pullers, and pyrotechnic locks. However, as pyrotechnic devices, there are large unlocking impacts, Inflammable, explosive, difficult to store and other shortcomings, and the chemical gas released after the explosion of explosives is polluting, which will cause damage to precision instruments such as launching lenses and electronic devices
In addition, pyrotechnics can only be used once, and do not have the ability to be disassembled and maintained repeatedly

Method used

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  • Automatic cover opening device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment provides an automatic cover-opening device, which can automatically open the cover, and the cover-opening method has small vibration and impact, no pollution, and can be used repeatedly.

[0019] Such as figure 1 As shown, the automatic cover-opening device is used to automatically unlock and open the front cover 1 blocked at the front opening of the launch tube 8. The automatic cover-opening device includes a rotating mechanism, a torsion spring B9, a locking mechanism and an unlocking mechanism. The two relative positions in the circumferential direction where the front cover 1 and the launch tube 8 meet are respectively connected by a rotating mechanism and a locking mechanism, and a torsion spring B9 is installed on the rotating mechanism to make the locked state between the front cover 1 and the launch tube 8 is the initial state; in the initial state, the torsion spring B9 has a counterclockwise pre-tightening torque (the counterclockwise direction...

Embodiment 2

[0021] On the basis of Embodiment 1, the locking mechanism includes a tenon 2, a torsion spring A3, and a housing 7. The housing 7 is fixed on the outer peripheral wall of the launching tube 8. It is a cylinder structure with one end open, and the opening direction of the cylinder structure is It is consistent with the opening direction of the launch tube 8, and its axial direction is parallel to the axial direction of the launch tube 8; the unlocking mechanism is arranged inside the shell 7, one end of which is in contact with the inner bottom surface of the shell 7, and the other end is connected with one end of the tenon 2, The other end of the tenon 2 is clamped on the hook provided on the front cover 1. The tenon 2 is a waist-shaped structure, and a pin is arranged in the middle of the waist. The torsion spring A3 is set on the pin, and one end is fixed on the card. tenon 2, and the other end is fixed on the inner wall of the housing 7. In the initial state, the torque dir...

Embodiment 3

[0024] On the basis of Embodiment 2, the unlocking mechanism includes a stopper 4, a push plate 5 and an SMA spring 6. One end of the stopper 4 is fixed on the inner wall surface of the shell 7 away from the launcher 8, and the other end is connected to the shell 7 and the launcher 8. There is a setting space between the inner walls of the connected side, and the push plate 5 is an "L"-shaped structure, and its vertical end stretches out from the setting space between the stopper 4 and the inner wall of the shell 7 and engages with the tenon 2 There is a set margin between its horizontal end and the block 4, which is used to provide a stroke margin for the upward movement of the push plate 5. After the push plate 5 moves upward to set the stroke, the block 4 is used to adjust the stroke. The push plate 5 is limited, and the SMA spring 6 is a shape memory alloy spring, and its two ends are respectively in contact with the horizontal end of the push plate 5 and the inner bottom s...

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Abstract

The invention discloses an automatic cover opening device which is used for automatically unlocking and opening a front cover blocked at an opening in the front end of a launch canister and is characterized by comprising a rotating mechanism, a torsional spring B, a locking mechanism and an unlocking mechanism, the two opposite positions in the circumferential direction of the joint of the front cover and the launch canister are connected through the rotating mechanism and the locking mechanism respectively, and the torsional spring B is installed on the rotating mechanism, so that the lockingstate between the front cover and the launch canister is the initial state; in the initial state, the locking mechanism locks the front cover, and the torsional spring B has pre-tightening torque; and after the unlocking mechanism drives the locking mechanism to unlock, the front cover rotates around the rotating mechanism under the action of the pre-tightening torque of the torsional spring B toopen the launch canister.

Description

technical field [0001] The invention relates to the technical field of cover opening, in particular to an automatic cover opening device. Background technique [0002] The common ways to open the front cover of a fire extinguishing bomb launcher include gas broken cover and pyrotechnic device. [0003] The gas broken cover is to use the high-pressure gas generated by the combustion of fuel in the launch tube to impact the front cover and break it open. The destructive way of opening the cover makes the front cover of the launch tube only disposable, which seriously affects the engineering application. practicality and economy. [0004] At present, the commonly used pyrotechnic device opening methods mainly include explosive bolts, pyrotechnic nuts, pyrotechnic cutters, pyrotechnic pin pullers, and pyrotechnic locks. However, as pyrotechnic devices, there are large unlocking impacts, Inflammable and explosive, difficult to store and other shortcomings, and the chemical gas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41F1/00
CPCF41F1/00
Inventor 张秀华郭桂容郭超陈红伟
Owner 北京北机机电工业有限责任公司
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