Pipe union fastening structure and its assembling process

A technology for fastening structures and pipe joints, which is applied in the direction of pipes/pipe joints/fittings, sealing surface connections, passing components, etc., can solve the problems of low reliability of pipe joints in direction adjustment, and overcome installation difficulties and reliability problems , the effect of overcoming unreliable problems

Inactive Publication Date: 2007-10-03
ZHEJIANG HUAXIA VALVE
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  • Abstract
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Problems solved by technology

[0004] It is conceivable that as far as the pushing step of the turning nut is concerned, if it can be formed by shrinking the external force of the crimping machine, it can of course be enlarged by the pushed step and become invalid. Therefore, the pushing step of the turning nut is formed by crimping The reliability of the steering pipe joint is not high

Method used

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  • Pipe union fastening structure and its assembling process
  • Pipe union fastening structure and its assembling process
  • Pipe union fastening structure and its assembling process

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Embodiment Construction

[0017] The pipe joints specified in ISO 8434-1 mainly use the conical structure 5 shown in Figure 6, the drive nut 10 and the extrusion ferrule 11 to realize the connection to the flat-end metal pipe. Therefore, a cone that can be docked with the standard conical structure 5 is provided. The head structure can simply realize the direction-adjusting connection of the non-standard interface relative to the standard cone 5. The pipe joint fastening structure of the present invention is the optimal fastening structure required by the ISO 8434-1 cone mouth / cone head direction adjustment structure.

[0018] As shown in Figure 1, the ISO 8434-1 cone / cone head direction adjustment structure is matched with the fastening structure of the present invention, and the direction adjustment connection of the bend, tee and four-way joints with the cone structure 5 and the threaded port can be realized Among them, piece 1a is the joint body, piece 2a is the rotating nut, piece 3a is the open r...

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Abstract

The pipe union fastening structure consists of one screw nut capable of rotating on the pipe union and one screw nut meshed and operated thrust force structure. The thrust force structure is used to push the conic mouth, conic head or spherical head of the union to the pipe end with corresponding structure to realize the pipeline connection. The thrust force structure has prefabricated step in the screw nut as the pushing step and the prefabricated open-mouthed steel wire or steel ball embedded in the slot on the connected pipe as the pushed step.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, and relates to a fastening structure and an assembly method for joint connection of fluid pipelines. Background technique [0002] The installation of bends, tees and crosses in fluid power transmission and medium delivery pipelines needs to meet the orientation requirements of the pipelines. The orientation of the elbow, tee and cross joints directly connected by threads changes with the tightening and rotation of the connecting thread on the joint body; when the connecting thread is tightened to the optimum, the orientation of the joint does not necessarily meet the orientation requirements of the pipeline; When the orientation is proper, the connecting thread is not necessarily just tightened to the optimum. Adjustable pipe joints are pipe joints that can strictly install elbow, tee and cross joints to any desired position. There are many types of steering pipe joints, but the essence i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/00
Inventor 徐长祥陈占基杨茅
Owner ZHEJIANG HUAXIA VALVE
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