Piping joint

A piping and pipe body technology, applied in the direction of pipe/pipe joint/pipe fitting, pipe connection arrangement, threaded connection, etc., can solve problems such as the adverse effect of the watertight performance of the pipe joint, and achieve the effect of inhibiting leakage and inhibiting separation
CN104769348AActive Publication Date: 2015-07-08BRIDGESTONE CORP
4 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BRIDGESTONE CORP
Publication Date
2015-07-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

Provided is a piping joint (10) comprising: a metal pipe (12) that can be screwed into a pipe body; a resin pipe (14) having one end section that is configured to be connectable with another pipe body and another end section that is integrally formed with the metal pipe (12); and a first polygonal section (18) that is provided to the outer peripheral surface of the resin pipe (14) and that comprises a corner section (24A) that requires less torque to break than the amount of torque required to separate the metal pipe (12) and the resin pipe (14).
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a pipe joint. Background technique

[0002] Among pipe fittings for joining pipe bodies together, there is known a pipe fitting having a resin pipe and a metal pipe integrally formed by insert molding (insert molding). If an excessive tightening torque is applied to such a pipe joint, the metal pipe and the resin pipe will separate from each other, raising a fear of adversely affecting the watertight performance of the pipe joint.

[0003] The pipe connection structure described in Japanese Patent Laid-Open No. 2009-115192 is provided with a hexagonal portion for being held by a tool on the outer peripheral surface, and is formed with slits extending radially inward from each corner of the hexagonal portion. It is desirable to adopt such a pipe connection structure on a metal pipe, the hexagon cannot be rotated because the corner of the hexagon which has been weakened by the slit is crushed, and the resin pipe is not m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More