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Hole cover fixation structure capable of preventing stopper rotation in disassembly process

A technology of fixing structure and hole radius, applied in the field of hole cover fixing structure, can solve the problems of blocking rotation by applying external force, blocking and rotating together with screws, inconvenient use, etc., and achieves the effect of overcoming inconvenience in use and easy disassembly

Inactive Publication Date: 2012-06-20
中国船舶重工集团公司第七0五研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this fixing structure of the hole cover, when the hole cover needs to be disassembled, the phenomenon that the blockage and the screw rotate together are easy to occur, and due to the existence of the hole cover, it is impossible to directly apply an external force to the blockage to prevent the blockage from rotating. The hole cover fixing structure has the problem of inconvenient use during disassembly

Method used

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  • Hole cover fixation structure capable of preventing stopper rotation in disassembly process
  • Hole cover fixation structure capable of preventing stopper rotation in disassembly process

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Embodiment Construction

[0013] The present invention is described below in conjunction with specific embodiments.

[0014] In this embodiment, the hole cover fixing structure proposed by the present invention is applied to the opening on the outer surface of the shell of a certain type of product.

[0015] The product casing 2 in this embodiment is a revolving body structure, and a plug 1 is plugged in the opening on the outer surface of the casing. The plug 1 is a cylindrical structure, and the central axis of the plug coincides with the central axis of the opening on the outer surface of the casing; the hole cover 3 is capped on the opening on the outer surface of the housing, and the outer surface of the hole cover 3 and the outer surface of the housing are smoothly transitioned to ensure the smooth aerodynamic shape of the overall product housing. For openings with a diameter of less than 40 mm in this embodiment, a single screw 4 is used to securely connect the hole cover with the plug, wherein ...

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Abstract

The invention provides a hole cover fixation structure capable of preventing stopper rotation in a disassembly process, wherein a stopper is plugged into an opening hole on the outer surface of a shell; a hole cover is covered on the opening hole on the outer surface of the shell; the hole cover is fixedly connected with the stopper through a single bolt; the center axis of the bolt is parallel to that of the opening hole on the outer surface of the shell; and the centre axis of the bolt is not overlapped with that of the opening hole on the outer surface of the shell. According to the hole cover fixation structure provided by the invention, through adjusting the center axis of the bolt, the moment generated in the process of dissembling the bolt is not overlapped with the center line of the opening hole on the outer surface of the shell, and neither not overlapped with the center axis of the stopper, so that the generated moment cannot enable the stopper to rotate when the bolt is rotated, therefore the disassembly is convenient, and the problem of inconveniently using the hole cover fixation structure in the disassembly process in the prior art is solved.

Description

technical field [0001] The invention relates to the field of fixing structures of mechanical parts, in particular to a hole cover fixing structure which can prevent blockage and rotation during disassembly. Background technique [0002] For products that need to maintain a smooth aerodynamic shape, such as automobiles, aircraft, missiles, torpedoes, etc., hole covers are often installed on the blocked openings on the outer surface of the product shell to ensure the aerodynamic shape requirements of the openings. For openings with a diameter of less than 40mm, the fixing method of the hole cover is usually to open a coaxial threaded hole on the hole cover and the plug along the central axis of the plug, and use screws to fix the hole cover and the plug. For this fixing structure of the hole cover, when the hole cover needs to be disassembled, the phenomenon that the blockage and the screw rotate together are easy to occur, and due to the existence of the hole cover, it is imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B1/00
Inventor 薛华王红卫刘津赵亮王君杨进候
Owner 中国船舶重工集团公司第七0五研究所
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