One-way anti-dismounting connecting pipe nut, anti-dismounting pipe connecting device and air conditioner
A joint nut and anti-disassembly technology, which is applied in the direction of pipes/pipe joints/pipe fittings, nuts, connecting components, etc., can solve the problems that cannot meet the requirements of anti-disassembly of refrigerant pipelines, so as to ensure non-disassembly, avoid leakage accidents, The effect of simple structure
Active Publication Date: 2018-06-19
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
[0003] However, the existing pipe connection devices that use pipe joints and union nuts to connect pipelines, the union nuts can usually be tightened in a forward direction and loosened in a reverse direction, which cannot meet the national requirements for preventing disassembly of such refrigerant pipelines
Method used
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[0043] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0044] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.
[0045] Refer to the attached Figure 1 to Figure 8 A one-way anti-tamper union nut, an anti-tamper fitting device and an air conditioner according to some embodiments of the present invention are described. ...
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The invention provides a one-way anti-dismounting connecting pipe nut, an anti-dismounting pipe connecting device and an air conditioner. The one-way anti-dismounting connecting pipe nut is provided with a first end used for being connected with a pipe joint and a second end used for being connected with a connecting pipe, the outer side surface of the first end is a cylindrical surface, the outerside surface of the second end is integrally a cylindrical surface, at least one pair of wrench clamping position surfaces which are arranged opposite to each other and parallel to each other are formed on the outer side surface of the second end, the top ends of the wrench clamping position surfaces penetrate through the end surface of the second end, and the width of the top end of each wrenchclamping position surface is larger than zero; and a forward stress linear edge used for being in line contact with a wrench during screwing is formed on each wrench clamping position surface, curvedsurfaces which are internally concave relative to the extending surfaces of the wrench clamping position surfaces and the extending surfaces of the cylindrical surfaces are formed between the wrench clamping position surfaces and the cylindrical surfaces adjacent to the wrench clamping position surfaces in the unscrewing direction, and a reverse stress curve edge or a fillet surface which is usedfor being in point contact with the wrench in the unscrewing process is formed on each curved surface so that the wrench can clamp the connecting pipe nut better in the screwing process, and the purpose of reverse anti-dismounting can be achieved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, and more specifically, to a one-way anti-dismantle union nut, an anti-dismantle pipe joint device and an air conditioner. Background technique [0002] At present, due to the needs of environmental protection, the refrigerants of air conditioners are gradually switched to R290 and R32 refrigerants with strong flammability. In order to prevent safety accidents, the state requires that air conditioners using such refrigerants must not be disassembled by non-professionals. [0003] However, the existing pipe connection devices that use pipe joints and union nuts to cooperate to connect pipelines, the union nuts can usually be tightened forwardly and loosened in reverse, which cannot meet the national requirements for preventing disassembly of such refrigerant pipelines. Contents of the invention [0004] The present invention aims to solve at least one of the technical problems existing ...
Claims
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Login to View More IPC IPC(8): F16B37/00F16L19/00
CPCF16B37/00F16L19/00
Inventor 符雪平刘艳涛陈勇
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD