Invention Grant
- Patent Title: Pipe joint structure for fluid device
- Patent Title (中): 流体装置管接头结构
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Application No.: US466184Application Date: 1995-06-06
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Publication No.: US5553900APublication Date: 1996-09-10
- Inventor: Toshiyuki Fukumoto , Kiyoshi Nishio
- Applicant: Toshiyuki Fukumoto , Kiyoshi Nishio
- Applicant Address: JPX Osaka
- Assignee: Nippon Pillar Packing Co., Ltd.
- Current Assignee: Nippon Pillar Packing Co., Ltd.
- Current Assignee Address: JPX Osaka
- Priority: JPX3-006944 19910124
- Main IPC: F16L19/04
- IPC: F16L19/04 ; F16L33/22 ; F16L47/04 ; F16L25/00
Abstract:
When used for connecting a fluid carrying pipe, the pipe joint for a fluid handling device of the present invention can provide a strong force for preventing the fluid carrying pipe from coming out from the pipe joint and can assure excellent sealing properties regardless of variations of the fluid temperature. The present pipe joint is arranged such that no fluid stay portion is formed. A cylindrical joint body is provided at the inner peripheral surface thereof with a receiving port into which a one-end pushing portion of a fluid carrying pipe is inserted, and at the outer peripheral surface thereof with a male screw portion. This joint body is formed integrally with the main body of the fluid handling device. Formed at the receiving port is a sealing portion inclined with respect to the axis thereof. A sealing ring having a sealing portion which comes in contact with the sealing portion of the receiving port, is pressingly inserted into one end of the fluid carrying pipe. By the threaded movement of a pushing ring as threadedly connected to a male screw portion on the outer periphery of the joint body, a sealing force is provided to both sealing portions.
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