Guangzhou Cheng Cheng at both ends of the opening and closing fast joint by the joint body, a one-way valve spool, jacket, ball, spring and sealing and other components. The inner cavity of the joint body a is a one-way valve, when two joints of the body are separated from, one-way valve spool in the respective under the action of a spring extended, and the top pressure in the taper hole on the connector body to make the path close, on both sides of the pipe in the oil is sealed in the pipe can not flow out; when connecting two joints of the body at the front end of the one-way valve spool two push rods collide, forcing the spool leave the cone hole of the joint body, make the oil pipe on both sides of the interlinked, two joint body with steel ball locking, work, coats in under the action of the spring to ball pressure in the U-shaped groove of the connector body, the joint body is connected. This kind of joint is convenient to disassemble, but the structure is complex, the partial resistance loss is large, and the pipeline system is suitable for oil and gas as the medium. |