A reverse triangular double-ring card pipe fitting connection structure

Abstract

The invention discloses a connection structure of a reverse triangular double-ring card pipe fitting connection structure, which includes a joint body, each end of the joint body is provided with a joint cavity, and a pair of reverse triangular rings are arranged in the joint cavity, and the bottom of the joint body is provided with a joint cavity. There is a first snap ring with a notch, and a positioning ring is arranged in the joint cavity at the outer end of the first snap ring with a notch; the present invention squeezes the push ring axially, so that the second snap ring with a notch is squeezed to produce a diameter Deform in the direction, press the supporting pipe material tightly, and then continue to squeeze axially, so that the first notched snap ring enters the first oblique triangle groove of the joint body, presses the supporting pipe material tightly and locks it, and causes the push ring to enter the second groove of the joint body. The inner locking of the oblique triangular card slot realizes the deformation of the inner concave triangular ring and the outer convex triangular ring due to extrusion. The resulting deformation is blocked by the inner wall of the joint body, and can only produce radial compression deformation to the center of the pipe axis, thereby extrusion matching Pipe to produce a hard seal effect.

Description

technical field [0001] The invention relates to the technical field of clamping pipe fittings, in particular to a reverse triangle double-ring clamping pipe fitting connection structure. Background technique [0002] The working principle of the card pipe fitting is to insert the two supporting pipes into the sockets at both ends of the card pipe respectively, fix the supporting pipe in the card pipe, and connect the two supporting pipes, so it is a drinking water system, a tap water system, a heating system, a steam A commonly used connector in industrial oil pipe system and industrial gas pipe system, suitable for water, oil, gas and other pipeline connections; [0003] The existing clamping fittings are not strong enough to fix the supporting pipes, it is difficult to lock the supporting pipes, and the supporting pipes are easy to fall off, and the existing clamping fittings are mostly soft seals, not resistant to temperature and pressure, easy to age, wear and tear, and ...

AI Technical Summary

Problems solved by technology

[0003] The existing clamping fittings are not strong enough to fix the supporting pipes, it is difficult to lock the supporting pipes, and the supporting pipes are easy to fall off, and the existing clamping fittings are mostly soft seals, not resistant to temperature and pressure, easy to age, wear and tear, and have a short service life. Therefore, the present invention proposes a reverse triangular double-ring card pipe fitting connection structure to solve the problems existing in the prior art

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