A new type of double nut pipe joint
A technology of double nuts and pipe joints, applied in the direction of pipes/pipe joints/pipe fittings, threaded connections, passing elements, etc., can solve the problem that the nuts are difficult to twist at the same time, and achieve a good anti-loosening effect.
Active Publication Date: 2022-03-29
浙江恒展机械有限公司
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Problems solved by technology
This process will first cause the inner nut to be unloaded, and it will be difficult for both nuts to be screwed at the same time
Method used
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Embodiment Construction
[0027] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.
[0028] refer to figure 1 , This embodiment provides a new double-nut pipe joint, including a joint body 1 , a first nut 2 , a second nut 4 , a third nut 3 and a fixing collar 5 . Wherein, the size parameters of the first nut 2 and the second nut 4 are the same; the first nut 2 and the second nut 4 are sequentially threaded on the joint body 1; the end of the first nut 2 facing the second nut 4 is provided with an external thread section 22 , the third nut 3 is screwed to the external thread section 22 ; the length of the external thread section 22 is the same as that of the third nut 3 .
[0029] The inner ring and the outer ring of the fixed collar 5 are regular hexagons, the inner ring of the fixed collar 5 is adapted to the outer ring...
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The invention provides a novel double-nut pipe joint, which includes a joint body, a first nut, a second nut, a third nut and a fixing collar; the size parameters of the first nut and the second nut are the same; the first nut and the second nut The nuts are threaded on the joint body in turn; the end of the first nut facing the second nut is provided with an external thread section, and the third nut is threaded on the external thread section; the inner ring and the outer ring of the fixed collar are in the shape of a regular hexagon , the inner ring of the fixed collar is adapted to the outer rings of the first nut and the second nut, and the radius of the inscribed circle of the fixed collar is greater than the radius of the circumscribed circle of the third nut; the first nut, the second nut, the second nut The sides of the three nuts are respectively provided with a first draw-in groove, a second draw-in groove and a third draw-in groove, the groove bottoms of the first draw-in groove, the second draw-in groove and the third draw-in groove are flush and have the same width; Blocks are provided at positions corresponding to the first card slot, the second card slot and the third card slot. The invention has the characteristics of high connection stability.
Description
technical field [0001] The invention relates to a pipe fitting, in particular to a novel double-nut pipe joint. Background technique [0002] The pipe joint is a connection tool between pipes and a detachable connection point between components and pipes. It plays an indispensable and important role in pipe fittings, and it is one of the two main components of hydraulic pipelines. Pipe joints are used for straight-line connections such as instruments, and the connection forms include socket welding or threaded connections. It is mainly used for small-diameter low-pressure pipelines, used for parts that need to be assembled and disassembled frequently, or used for final adjustment of pipelines using threaded pipe fittings. The structural form should adopt the metal surface contact sealing structure. The structural form of the gasket seal is usually used in general pipelines for conveying water, oil, air, etc., and is made of malleable cast iron. [0003] For threaded pipe ...
Claims
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IPC IPC(8): F16L15/08
CPCF16L15/08
Inventor 张毓中
Owner 浙江恒展机械有限公司