Pipe joint structure

Abstract

The invention relates to a pipe joint structure which comprises a joint body, a first O-shaped seal, a second O-shaped seal, a first auxiliary positioning ring, a second auxiliary positioning ring, alocking screw and a connecting seat; the joint body is provided with a first opening, a second opening and a ring protrusion, and the joint body is provided with a first thread segment with respect tothe outer edge of the first opening; an action inclined surface is formed on the second auxiliary positioning ring, and the inner edge of the locking screw is provided with a second thread segment, afirst step-shaped part and a second step-shaped part. A reduced diameter section is connected to one end of the locking screw by the formation of the second step-shaped part, and an inclined surfaceis formed at the corner of the second step-shaped part adjacent to the first step-shaped part, and a plurality of elastic pieces are arranged on the connecting seat, and the elastic pieces are provided with metal claws, barbs, inclined parts and inclined surfaces.

Description

technical field [0001] The present invention relates to a pipe joint structure, in particular to a pipe joint structure with good positioning force. Background technique [0002] Currently known pipe joint structures, such as Figure 10 As shown, the pipe joint 80 mainly includes: a joint body 81, an O-shaped seal 82, a snap ring 83 and a connecting seat 84, wherein the joint body 81 has a first opening 811 connected to the A second opening 812, the first opening 811 is provided with an annular protrusion 813 and an annular groove 814, the retaining ring 83 has an annular elastic flange 831 and a plurality of retaining teeth 832 disposed on the flange 831, the connecting seat One end of 84 is provided with an enlarged lug 841, and the lug 841 is used to press the connecting seat 84 inwardly, and the other end is extended with a plurality of elastic pieces 842 in a mutually spaced manner, and the outer side of each elastic piece 842 is A barb 843 is formed; when in use, the ...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned known structure still has the following problems in practical application: it only utilizes the snap teeth 832 of the snap ring 83 to slightly embed the copper tube 90, and has the disadvantage of weak positioning force. The copper pipe 90 will be pulled like Figure 11 As shown, it will be disengaged from the pipe joint 80. When disengaged, the locking teeth 832 will scrape the copper pipe 90, and leave strip-shaped scratches 91 on the surface of the copper pipe 90 (such as Figure 12 As shown), the scratch 91 of the strip depression will be the main reason that the copper pipe 90 cannot be completely sealed with the pipe joint 80 after being reconnected, and the water equipment will subsequently leak.

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