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Housing type pipe joint

A pipe joint and ferrule type technology, which is applied in the direction of pipe/pipe joint/pipe fitting, packing and sealing connection by fluid pressure, passing through components, etc., can solve the problems of deterioration of gasket 65, reduced sealing performance, water leakage, etc. Deterioration, workability improvement, and the effect of preventing deterioration of sealing performance or water leakage

Inactive Publication Date: 2013-10-23
RIKEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when the diameter of the gasket 65 is reduced, the gasket (gasket lip 65 a ) is twisted and wrinkled, and wrinkling due to diameter reduction occurs.
Furthermore, if the gasket 65 remains in such an excessively compressed state for a long period of time, the gasket 65 deteriorates, the sealing performance decreases, and there is a possibility of water leakage.

Method used

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  • Housing type pipe joint
  • Housing type pipe joint
  • Housing type pipe joint

Examples

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Embodiment Construction

[0053] The present invention will be described in detail below, but the present invention is not limited by the detailed description.

[0054] figure 1 It is a sectional view cut along a plane parallel to the axial direction of the pipe when the compression fitting 1 according to the embodiment of the present invention is attached to the pipe P, figure 2 is along figure 1 The cross-sectional view of the A-A line (obtained by cutting the plane perpendicular to the axial direction of the pipe), image 3 It is a half-sectional view obtained by cutting the ferrule-type pipe joint 1 with a plane parallel to the axial direction, Figure 4 is a half-sectional view of the gasket 6. The compression fitting 1 has a pair of sleeve bodies 4 , a washer 6 made of an annular elastic body, and a fastener 7 made of a bolt 8 and a nut 9 , and is constructed by assembling these parts.

[0055] The sleeve main body 4 has: a substantially semicircular arc-shaped portion 3; flange portions 5 f...

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Abstract

A housing type pipe joint 1 that connects a pair of pipes P, comprising: a plurality of housing bodies 4; an annular gasket 6 that is accommodated in the housing body; the gasket includes a cylindrical body portion 6c, a pair of gasket lip portions 6a to seal an outer surface of the pipe, and a pair of gasket tongue portions 6b between the gasket lip portions, when the distal ends of the pair of gasket tongue portions are pressed to be close to each other in the axial direction, the body portion is deformed about a vicinity of base ends of the pair of gasket tongue portions, and due to this deformation, the pair of gasket lip portions rotate, and an angle of the outer surface 6as of the gasket lip portion relative to the axial direction becomes smaller.

Description

technical field [0001] The present invention relates to a ferrule-type pipe joint that connects pipes and joint ends that are connected to each other by butting each other. Background technique [0002] As the existing ferrule type pipe joint 100, such as Figure 8 as well as Figure 9 As shown, there is known a compression type pipe joint having a structure in which a ring-shaped gasket 60 is housed in the inner diameter portion of a set of substantially semicircular arc-shaped parts of the sleeve body 40, and flanges protruding from both ends of each semi-circular arc-shaped part are known. The parts 50 are put together and fixed by a fastener 70 consisting of a bolt 80 and a nut 90 . [0003] In construction of the joint, this compression fitting 100 is used as follows. First, the bolts 80 and the nuts 90 are temporarily removed, and the washer 60 is attached to one end of the pipe P relative to the annular groove Pa. Since the inner diameter of the gasket 60 is smalle...

Claims

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Application Information

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IPC IPC(8): F16L17/073
CPCF16L17/04F16L17/032
Inventor 三上修市
Owner RIKEN CO LTD
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