Combined waterproof sealing structure
A waterproof sealing and combined sealing technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem that it is difficult to ensure the uniform compression of the moving parts and fixed parts of the fuselage
Inactive Publication Date: 2016-06-15
CHANGHE AIRCRAFT INDUSTRIES CORPORATION
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Problems solved by technology
When the movable parts are closed, due to the accumulation of errors, it is difficult to ensure uniform compression between the movable parts and the fixed parts of the fuselage, resulting in local water seepage and water leakage when it is raining
Method used
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Embodiment Construction
[0012] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0013] see figure 2 , which is a schematic diagram of the combined waterproof sealing structure of the invented helicopter. The helicopter composite waterproof sealing structure of the present invention includes an "O" type sealing rubber strip 1, a flat sealing rubber strip 2 and a sealing glue 5. The combined sealing structure connects the flat-plate sealing strip 2 and the "O"-shaped sealing strip 1 with the movable parts and the fixed parts of the fuselage respectively through its sealant 5 .
[0014] During actual work, the moving parts of the fuselage are closed, the flat sealant strip 2 contacts and compresses the "O" sealant strip 1, and the single ear of the "O" sealant strip and the single ear 4 of the "O" sealant strip form respectively Linear contact, so as to achieve a waterproof seal.
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The invention relates to a novel combined waterproof sealing structure, in particular to a combined waterproof sealing structure for a helicopter. The combined waterproof sealing structure for the helicopter comprises a flat-plate sealing rubber strip, an O-shaped sealing rubber strip and a sealant, wherein one end of the flat-plate sealing rubber strip is in a hook tooth shape, and the flat-plate sealing rubber strip is glued on a movable part of a helicopter body through the sealant; and a single lug stretches out of the end of the O-shaped sealing rubber strip, and the O-shaped sealing rubber strip is glued on a fixed part of the helicopter body through the sealant. After the movable part of the helicopter body is closed, the flat-plate sealing rubber strip is matched with the O-shaped sealing rubber strip in a sealing mode, and certain compression is achieved; and the single lug at the end of the O-shaped sealing rubber strip enters a hook tooth groove in the end of the flat-plate sealing rubber strip, so that the waterproof sealing effect is achieved.
Description
technical field [0001] The invention relates to a combined waterproof sealing structure, in particular to a combined waterproof sealing structure for a helicopter. Background technique [0002] At present, the movable parts and fixed parts of large helicopter fuselages at home and abroad are connected through the contact mode of flat plate and "O". see figure 1 , which is a schematic diagram of the connection between the movable parts and the fixed parts of the helicopter fuselage in the prior art. When the movable parts are closed, due to the accumulation of errors, it is difficult to ensure that the compression between the movable parts and the fixed parts of the fuselage is uniform, resulting in local water seepage and water leakage when it is raining. Contents of the invention [0003] The object of the present invention is to provide a combined waterproof sealing structure between the movable parts and the fixed parts of the fuselage which has a simple structure and...
Claims
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IPC IPC(8): F16J15/10
Inventor 吴事兵徐少林马强张长龙雷亚超邓健健徐天如
Owner CHANGHE AIRCRAFT INDUSTRIES CORPORATION