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Locking ring for tube fitting and tube fitting

A technology of pipe joint and locking ring, applied in the direction of pipe/pipe joint/pipe fitting, sealing surface connection, passing element, etc., to achieve the effect of inhibiting the penetration of the claws through the pipe body

Inactive Publication Date: 2010-03-03
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the restricting portion has a shape in which a part of the circumferential end of the claw portion is removed, the restricting portion may be inserted into the tubular body when a force in the pulling direction acts on the tubular body.

Method used

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  • Locking ring for tube fitting and tube fitting
  • Locking ring for tube fitting and tube fitting
  • Locking ring for tube fitting and tube fitting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0035] figure 1 An exploded perspective view showing the pipe joint 10 having the pipe joint lock ring 30 according to the embodiment of the present invention. in addition, figure 2 A half-sectional view showing the pipe joint 10 having the pipe joint lock ring 30 according to the embodiment of the present invention before the pipe body 40 is inserted.

[0036] The pipe joint 10 has a tubular body part 12 and a tubular middle part 14 overlaid on the body part 12 . The joint main body 16 is constituted by the main body part 12 and the intermediate part 14 . In addition, the pipe connection 10 has a tubular sleeve 18 . The sleeve 18 is overlaid on the middle part 14 . like figure 2 As shown, an insertion hole 20 for inserting the tube body 40 is formed between the intermediate portion 14 and the sleeve 18 and the main body 12 .

[0037] A locking ring 30 for holding the t...

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PUM

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Abstract

The present invention provides a locking ring for a tube fitting and the tube fitting. The locking ring for the tube fitting forms a part of the tube fitting for inserting a tube body and for preventing the tube body from pulling off, the locking ring of the tube fitting has a ring portion, a plurality of claw portions and limiting portions, the ring portion is in a ring shape and is arranged at the outer side of the tube body; the plurality of claw portions extend from the radial inner side of the ring portion and are inlayed in the peripheral surface of the tube body to prevent the tube bodyfrom pulling off; the limiting portions are formed at the positions adjacent to the claw portions, and are abutted to the peripheral surface of the tube fitting with an angel more toward the radial outer side of the tube body than the claw portions to limit the claw portions from being inlayed in the tube body.

Description

technical field [0001] The present invention relates to a locking ring for a pipe joint and a pipe joint, and in particular to a locking ring for a pipe joint and a pipe joint for preventing a pipe body inserted into the pipe joint from coming out. Background technique [0002] Conventionally, a pipe joint capable of connecting a pipe to an insertion hole of a joint main body by an in-line operation and allowing the pipe to be detached from the insertion hole has generally been used. [0003] In such a pipe joint, a locking ring is arranged inside the insertion hole, and claws are formed on the inner peripheral side of the locking ring. In addition, the claws of the lock ring fit into the outer peripheral surface of the resin tube inserted into the insertion hole, thereby suppressing the tube from coming out of the insertion hole (for example, refer to Patent Document 1). However, in the pipe joint described in Patent Document 1, it is considered that the claws of the lock ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/08F16L37/14
Inventor 长山友久石井完
Owner BRIDGESTONE CORP