JPS643191U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 shows a piping coupling according to an embodiment of the present invention, and Fig. 2 is a partial cross-sectional view of the female body and male body in a state where they are being connected, and Fig. 2 is a partial sectional view of the piping coupling in a state in which the female body and male body are being connected. FIG. 3 is a partial sectional view similar to FIG. 1 showing the fully connected state in FIG. 1, and FIG. 4 shows a conventional piping coupling. FIG. 2 is a partial cross-sectional view similar to FIG. 1; Explanation of symbols: 1...Female body, 1a...Inside the body, 1b...Piping connection part, 1c...Female fitting part, 2...Male body, 2a...Inside the body, 2b...Piping connection part, 2
c...male fitting part, 3...O-ring (ring-shaped sealing member), 4...through hole, 5...locking part, 6...ball stopper (stopper), 7...sleeve, 8a, 8
b... Valve seat, 9a, 9b... Valve body, 10... Spring, 11... Safety spring, 12... Pressing gasket (
tip seal member), 13... seal receiving part, 14...
Stopper part, 15... Engagement part, 16... Extension part, 1
6a...female thread, 17a...male thread.

Claims (1)

[Claims for Utility Model Registration] (1) A female body formed in a hollow shape and having a fluid passage inside the body, and having a piping connection part on one end side and a female fitting part on the other end side; A male body is formed to have a fluid passage inside the body, and has a piping connection portion at one end and a male fitting portion at the other end, and the male fitting portion is fitted into the female fitting portion. A ring-shaped sealing member is interposed between the inner surface of the female fitting part and the outer surface of the male fitting part to airtightly seal the space between them, and a stopper that engages with a locking portion formed on the outer surface of the male fitting portion when the male fitting portion is fitted into the female fitting portion; arranged so as to be slidable,
A piping coupling having a sleeve that reciprocates between a disengagement position where the engagement state of the stopper is released and an engagement guarantee position where the engagement state of the stopper is guaranteed, the male fitting part of the male body described above. A tip sealing member is interposed between the outer side of the tip and a seal receiving portion formed in the female fitting portion of the female body, and a stopper portion is formed on the outer side of the opening edge of the female fitting portion, and a stopper portion is formed on the sleeve. An engaging part is formed on the sleeve to be engaged with the stopper part at the engagement guaranteed position, and when the engaging part is engaged with the stopper part, it protrudes beyond the stopper part to the male body side and is attached to the inner surface of the sleeve. An extension portion having a female thread is provided, and a male thread is provided on the outer surface of the male body so that the female thread of the extension portion is screwed into the end seal member to airtightly press the tip seal member to the seal receiving portion. Features: A coupling ring for piping. (2) The tip seal member is attached to the outside of the tip of the male fitting part of the male body, and when this male fitting part is fitted into the female fitting part of the female body, it is pressed into contact with the seal receiving part of the female fitting part. A coupling for piping according to claim 1, which is a pressure packing for providing a utility model. (3) A safety spring is interposed between the outer surface of the female body and the sleeve to bias the sleeve from its disengaged position to its guaranteed engaged position, or The coupling for piping described in item 2. (4) The female body has a valve seat formed on the inner surface of the body, the male body has a valve seat formed on the tip side of the male fitting part on the inner surface of the body, and each of the female body and male body has a valve seat formed inside the body. When these female bodies and male bodies are separated from each other, they sit on the valve seats inside each body and close the fluid passages inside each body. A utility model registration in which a pair of valve bodies are disposed that fit into the fitting portion and separate from the valve seat inside each body to form a fluid passage when the female body and male body are connected to each other. A coupling for piping according to any one of claims 1 to 3. (5) A spring is interposed between each valve body and the inner surfaces of the female body and the male body to bias each valve body in the direction of seating it on each valve seat. Claim 4 of the utility model registration claim, wherein when the valve bodies are fitted into the female fitting portion of the body, the tips of the valve bodies collide with each other and the valve bodies separate from the respective valve seats to form a fluid passage. Coupling ring for piping. (6) The coupling for piping according to any one of claims 1 to 5, wherein the ring-shaped sealing member is an O-ring. (7) The coupling for piping according to any one of claims 1 to 6 of the utility model registration claim, wherein the stopper is a ball stopper.