Quick release lock with spring device

A technology of spring device and lower lock, which is applied in the direction of quick action fasteners, aircraft accessories, connecting components, etc., can solve the problems of failure of small load-bearing locks, failure to open the lid, and inability to remove the curvature lock nail of the lid, etc., to achieve Avoid easy falling off and easy disassembly

Active Publication Date: 2012-04-25
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many flaps for daily maintenance on various types of aircraft designed and manufactured in China in the past. The connections on them are usually HB2-46-76 small load-bearing locks. The small load-bearing locks are used on the flaps. It is relatively flat, and its disadvantage is that when the cover has a shape or the cover has a large curvature, the locking pin cannot be removed, resulting in the failure of the small load-bearing lock and the cover cannot be opened.

Method used

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  • Quick release lock with spring device
  • Quick release lock with spring device

Examples

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Embodiment

[0022] Example: The locking nail 101 is made of 30CrMnSiA-φ12, and the head of the locking nail 101 has a groove with a depth of 2mm and a width of 1mm. There is a boss under the head of locking nail 101. The lower end of the polished rod of locking nail 101 is in the shape of a frustum. cut. The lower edge of the locking nail head and the joint between the boss and the locking nail head are all chamfered, and the joint between the cone and the locking nail rod is rounded.

[0023] The material of the spring 102 is 70-E-d0.8, which is slightly larger than the frustum at the lower end of the locking nail 101 .

[0024] The material of the lock seat plate 103 is ZG35CrMnSi(R).

[0025] The material of the gasket 104 is 20-δ0.8 and notched.

[0026] When the upper lock body 1 is assembled, the spring 102 is inserted into the locking rod part from the lower end of the locking nail 101, then the washer 104 is inserted into the below of the locking rod spring 102 from the cutou...

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PUM

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Abstract

The invention discloses a quick release lock with a spring device. An upper lock body consists of a lock pin, a spring, a lock seat disk and a gasket; the lock seat disk and a lower lock seat are both provided with two side blades respectively and are also provided with installation holes; the lock seat disk is provided with a central through hole, a protruded circumferential ring surrounding thecentral through hole is arranged on two sides of the lock seat disk respectively, the spring is arranged and the lock pin is sleeved in the central through hole of the protruded circumferential ring;the spring is connected with a step of the lock pin; the other end of the spring is connected with a step in the central through hole; the gasket is arranged in a connection gap between the spring and the central through hole; the lower lock seat consists of a snap spring sheet and a lower lock body; the lower lock body is arranged in the snap spring sheet; and a through hole corresponding to theupper lock body is formed in the center of the snap spring sheet and the lower lock body respectively. The quick release lock can solve the problem that a large-curvature curved covering cap cannot be opened by a common quick release lock, and can also avoid the problem that the lock pin falls, and facilitates the daily using and maintenance of an airplane.

Description

technical field [0001] The invention relates to a lock structure, in particular to a quick-release lock with a spring device used on an aircraft hatch. Background technique [0002] There are many flaps for daily maintenance on various types of aircraft designed and manufactured in China in the past. The connections on them are usually HB2-46-76 small load-bearing locks. The small load-bearing locks are used on the flaps. It is relatively flat, but its disadvantage is that when the cover has a shape or the cover has a large curvature, the locking nail cannot be taken out, resulting in the failure of the small load-bearing lock and the cover cannot be opened. The use of this quick-release lock with a spring device can not only solve the problem that the large-curvature curved surface cover cannot be opened with a common quick-release lock, but also avoid the problem of the lock pin falling off, which facilitates the daily use and maintenance of the aircraft. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B21/08F16B21/09F16B21/12F16B21/18B64C1/14
Inventor 马丽莎胡小华朱媛张改华宗进余志明刘贵芳袁平湘林振华
Owner JIANGXI HONGDU AVIATION IND GRP
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