CN201177127Y

CN201177127Y - Pipe fitting joint

Info

Publication number: CN201177127Y
Application number: CNU2008200795634U
Authority: CN
Inventors: 叶笃海; 戚海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-25
Filing date: 2008-03-25
Publication date: 2009-01-07
Anticipated expiration: 2018-03-25

Abstract

The utility model provides a pipeline connector, which comprises a flange ring pipeline and a sealing ring, and further comprises a thin wall pipeline and a stopping nut, wherein, the sealing ring and the stopping nut are coupled in the front and back ends of a convex ring of the flange ring pipeline respectively. The thin wall pipeline is coupled outside the flange ring pipeline. The circumference of the inner wall of the thin wall pipeline is provided with convex points which are out-protruding and symmetric along the center. The outer wall of the stopping nut is provided with a socket with stopping points. The convex points of the thin wall pipeline are clamped with the stopping points of the stopping nut. The utility model has the advantages of more simple structure, simple use, reduction of material using amount and improvement on safety and sealing performance.

Description

Pipe fitting joint

Technical field

The utility model relates to joint, and particularly a kind of pipe fitting joint is used for the pipe fitting connection part on machine, equipment and the pipeline.

Background technique

At present, what known pipe fitting joint pattern was relatively used always on the market is direct insertion, is mainly combined by flanged ring pipe fitting, tightening nut, seal ring, the built-in pipe fitting of screw thread.The flanged ring pipe fitting is with the pipe end appropriate location of special-purpose expanding tool at stainless steel pipe fittings, forms radial convex loop by the outside surperficial roll-in of inwall.The assembly process of pipe fitting joint is earlier locking nut to be placed on the flanged ring pipe fitting, pipe fitting is injected to have in seal ring and the pipe fitting built-in screw thread again, tightens spiral locking nut, forms the pipe fitting joint of sealed attachment.Because the pipe fitting joint of this structure is the mode that adopts built-in screw thread and nut screwing clamping, objectively increased the thickness of pipe fitting casting, so caused the elbow material generally more thick and heavy, waste material not only, and waste time and energy again in the using process, the shortcoming of sealing deficiency also often takes place, and makes and produces and lived many unfavorable factors.

Summary of the invention

The purpose of this utility model is the defective at above-mentioned prior art, provide a kind of structure more reasonable, use consumption simple, that can reduce material, and the pipe fitting joint that is improved of Security and sealing.

The technological scheme taked of the utility model is to achieve these goals: a kind of pipe fitting joint, comprise flanged ring pipe fitting and seal ring, also comprise thin-wall pipe and retaining nut, described seal ring and retaining nut are socketed in the bulge loop front and back ends of described flanged ring pipe fitting respectively; thin-wall pipe is socketed in the outside of flanged ring pipe fitting; the inwall of thin-wall pipe be circumferentially with evagination and along centrosymmetric salient point; the outer wall of retaining nut is provided with the groove that contains retaining point, the retaining point clamping mutually of the salient point of thin-wall pipe and retaining nut.

The front end of described retaining point is to upper process, and is terminal to lower recess.

During the utility model assembling, be the bulge loop both sides that retaining nut and seal ring are placed in the flanged ring pipe fitting respectively, insert in the thin-wall pipe then, utilize two interior pressure-cliping salient points of thin-wall pipe, groove along the retaining nut, go into special-purpose instrument rotation again, block the retaining point of retaining nut groove up to two interior pressure-cliping salient points of thin-wall pipe, thereby reach the effect that connects and seal.Wherein, retaining point employing front end fraction is to upper process, and the terminal structure to lower recess of retaining point when in a single day two interior pressure-cliping salient points of thin-wall pipe are slipped to retaining point end, just is difficult to skid off backward or become flexible.So two internal pressure type salient points of thin-wall pipe and the combined structure of retaining nut that the utility model adopts, thereby the cost of material of pipe fitting and the convenience of assembling have been reduced; Simultaneously, adopt rational retaining point design, increased the sealability and the Safety performance of pipe fitting joint especially.

The beneficial effects of the utility model are: compared to existing technology, the utlity model has the consumption that structure is more reasonable, use simply, can reduce material, and the advantage of Security and sealing raising.

Description of drawings

Fig. 1 is a whole assembling schematic representation of the present utility model;

Fig. 2 is the exploded view of Fig. 1;

Fig. 3 is the plan view and the A-A sectional view of thin-wall pipe described in the utility model;

Fig. 4 is the main sectional view and the worm's eye view of retaining nut described in the utility model;

Fig. 5 is the unfolded drawing of Fig. 4 and B-B, A-A sectional view.

1 thin-wall pipe, 1.1 salient points, 2 seal rings, 3 flanged ring pipe fittings, 4 retaining nuts, 4.1 grooves, 4.2 retainings point.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.

A kind of pipe fitting joint shown in Fig. 1-2 comprises flanged ring pipe fitting 3, seal ring 2, thin-wall pipe 1 and retaining nut 4.Described seal ring 2 and retaining nut 4 are socketed in the bulge loop front and back ends of described flanged ring pipe fitting 3 respectively, and thin-wall pipe 1 is socketed in the outside of flanged ring pipe fitting 3.As shown in Figure 3, the inwall of thin-wall pipe 1 be circumferentially with evagination and along centrosymmetric two interior pressure-cliping salient points 1.1.Shown in Fig. 4-5, the outer wall of retaining nut 4 is provided with the groove 4.1 that contains retaining point 4.2, and the front end fraction of described retaining point 4.2 is to upper process, and is terminal to lower recess.As shown in Figure 1; the salient point 1.1 of thin-wall pipe 1 is put 4.2 clampings mutually with the retaining of retaining nut 4; when in a single day two interior pressure-cliping salient points 1.1 of thin-wall pipe 1 are slipped to retaining point 4.2 ends, just be difficult to skid off backward or become flexible, thereby reduced the cost of material of pipe fitting and the convenience of assembling.Simultaneously, adopt rational retaining point 4.2 designs, increased the sealability and the Safety performance of pipe fitting joint especially.

The utlity model has the consumption that structure is more reasonable, use simply, can reduce material, and the advantage of Security and sealing raising.

Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.

Claims

1. pipe fitting joint, comprise flanged ring pipe fitting and seal ring, it is characterized in that: also comprise thin-wall pipe and retaining nut, described seal ring and retaining nut are socketed in the bulge loop front and back ends of described flanged ring pipe fitting respectively; thin-wall pipe is socketed in the outside of flanged ring pipe fitting; the inwall of thin-wall pipe be circumferentially with evagination and along centrosymmetric salient point, the outer wall of retaining nut is provided with the groove that contains retaining point, the retaining point clamping mutually of the salient point of thin-wall pipe and retaining nut.

2. pipe fitting joint according to claim 1 is characterized in that: the front end of described retaining point is to upper process, and is terminal to lower recess.