Clip convex type pipeline joint component

Abstract

The invention discloses a clamp protruding connecting tube, including a connecting piece body, a connecting nut, the end of the connecting piece body is provided with an external thread adaptive with the connecting nut, the connecting nut is provided with a limiting wall matching with the protruding ring of the protruding circular canal at the inner side of the inner thread, characterized in that, the annular cavity is provided with a fixing step on the outside wall relative to the elastic sealing ring. The invention has the advantage that, through the fixing step on the outside wall relative to the elastic sealing ring, the problem that the elastic sealing ring is over pressed or not enough by the protruding circular canal is solved, which makes the sealing of the product even better, and the service longer.

Description

technical field [0001] The invention relates to a pipe connector, in particular to a card-convex pipe connector. Background technique [0002] Common pipe fitting connection methods include compression type, ring pressure type, flanging type, bonded type, self-threaded type, socket type, socket welding type, concave ring type, clamp type, bolt type, and union type Connection methods such as flange connection, welding type, and snap-on connection, among which the snap-on connection method forms a tight ring and buckle fit through the convex ring pipe to be connected and the pipe connector, referred to as "snap-on connection method", which has a firm seal Good, light and simple installation tools, no electricity and silent operation, cheap price, fast and convenient installation and connection, etc., solve the difficulties in on-site construction of traditional pipeline connections, large limitations in daily modification and maintenance, high technical requirements for constr...

AI Technical Summary

Problems solved by technology

[0003] At present, the structure of the existing snap-on-type pipe connector is as follows: it includes a connector body and a connecting nut that forms a threaded connection with the connector body. The matching limit wall, and the inner wall of the end of the connector body is provided with an annular cavity, and an elastic sealing ring is installed on the cavity. When connecting, the convex ring tube to be connected passes through the nut, and then the connecting nut is screwed on the On the connector body, one side of the convex ring to be connected to the convex ring pipe is clipped on the limit wall of the connecting nut, and the other side is squeezed to form a sealing and fixed fit with the sealing ring. However, this snap-convex pipe connector Under different temperature conditions, there will inevitably be thermal expansion and contraction, or excessive tightening or loosening of the thread, resulting in the standard sealing size due to thermal expansion and contraction, etc., resulting in excessive extrusion of the convex ring tube on the elastic sealing ring. Insufficient extrusion, which leads to the problem of decreased sealing of the product

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