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Single and double hoop coenosarc extruded connecting pipe joint

A technology of extrusion connection and pipe joint, applied in the direction of pipe/pipe joint/pipe fitting, sealing surface connection, passing element, etc., which can solve the problems of violation of tightening standards, large pipe connection, danger, etc.

Inactive Publication Date: 2007-06-27
ZHEJIANG HUAXIA VALVE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the installation and tightening torques of all the single and double hoop extrusion connection structures so far are too large to be used for pipe connections above 50mm
[0010] At present, the Ermeto single hoop structure and the Swagelok double hoop structure are two mutually incompatible structural systems, that is, each has its own matching extrusion hoop receiver, or in other words, the extrusion hoop cannot be installed in the same connecting body instead of each other , which is extremely unfavorable for the simultaneous manufacture and use of the same unit, which seriously restricts the development of pipe extrusion connection technology
[0011] In addition, the prior art uses driving thread fits with the same mechanical strength, which violates the fastening standards and is dangerous

Method used

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  • Single and double hoop coenosarc extruded connecting pipe joint
  • Single and double hoop coenosarc extruded connecting pipe joint
  • Single and double hoop coenosarc extruded connecting pipe joint

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Embodiment Construction

[0069] Both the single hoop type and the double hoop type extruded connection pipe joints of the present invention are pipe joints for connecting smooth pipes to other pipeline openings. In order to connect the smooth pipe to other pipe ports, of course, in the pipe fittings, in addition to the pipe extrusion connection end, there are other connection ends, such as threaded, welded and other connection ends. If all smooth tubing is being connected, the fittings will be all tube extruded connections. The single ferrule extruded connection pipe fitting of the present invention shown in Fig. 1 and Fig. 5 and the double ferrule extruded connection pipe fitting of the present invention shown in Fig. 13 and Fig. 15 are all a smooth pipe connected Other pipe fittings with internal threaded ports.

[0070] The single ferrule extruded connection pipe fitting of the present invention, as shown in Fig. 1 and Fig. 5, is composed of a connecting body (1), an extruded ferrule (2) and a dri...

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Abstract

A single-hoop and dual-hoop shared tube jointer with squeeze sealing join is composed of a joint body, single or dual squeeze hoops with head wedge, sealing cantilevers, internal squeeze edge, etc, and a drive nut. Its advantages are obvious 'stop sensing', and high resistance to over-drive and vibration.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, and relates to an extruded connection pipe fitting for fluid power transmission and medium conveying pipelines, which is the continuation and deepening of the clamp pipe connection method in the CN02128376.1 patent application. Background technique [0002] Pipe extrusion connection is the connection of fluid transmission pipes realized by squeezing the hoop or ferrule between the connected pipe and its connectors. It is developed relative to the previous flared pipe connection. Therefore, it was also called no Flared tube connection. At present, there are two structures of extruded connection pipe fittings widely circulated in the global market: ISO 8434-1 single ferrule type and American Swagelok double ferrule type. my country's national standard GB 3733-83-GB 3765-83 ferrule type pipe joint belongs to the ISO 8434-1 single hoop structure, which is derived from the German standard. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/08
CPCF16L19/10F16L19/103
Inventor 徐长祥
Owner ZHEJIANG HUAXIA VALVE
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