CN2506843Y

CN2506843Y - Pipeline joint

Info

Publication number: CN2506843Y
Application number: CN 01248759
Authority: CN
Inventors: 董艳; 韩延霄; 何江; 薄文海
Original assignee: DONGYUAN PIPE INDUSTRY Co Ltd LIAONING
Current assignee: DONGYUAN PIPE INDUSTRY Co Ltd LIAONING
Priority date: 2001-07-20
Filing date: 2001-07-20
Publication date: 2002-08-21
Anticipated expiration: 2011-07-20

Abstract

The utility model relates to a pipeline joint, comprising a joint core pipe, a seal ring and a sleeve. An annular lug boss and the seal ring are arranged at the outer wall of the joint core pipe, while the connected pipeline forms higher jointing strength and better sealing effect at the annular lug boss and the seal ring of the outer wall of the joint core pipe. An incurve rounding is arranged at one end of the sleeve which can be meshed with a slot on the core pipe conveniently with fastness, while an opened circle square slot is meshed with a lug boss on the core pipe to locate the sleeve. The utility model is applicable in the connection of plastic pipes or aluminum-plastic composite pipes and has the advantages of simple installation, high strength, good sealing effect, material saving and so on.

Description

A kind of pipe coupling

Technical field:

The utility model relates to a kind of pipe coupling, is particularly useful for the connection of plastic tube or aluminium-plastic composite pipe.

Background technique:

At present, the pipe coupling variety type is a lot, and the jointing of widespread usage is that socket wrench specially adapted for it directly is connected with pipe joint, since sleeve machining accuracy height, the cost height, and installation difficulty is also higher, makes troubles for construction operation in enormous quantities.

Summary of the invention:

The utility model provides a kind of pipe coupling, and its easy processing is easy for installation, bond strength height, good sealing effect and comparatively save material.

Pipe coupling provided by the utility model is made up of joint core pipe, seal ring and sleeve three parts, wherein:

The utility model pipe coupling is provided with annular boss at the joint core tube wall, have circular groove on the joint core pipe, in circular groove, place seal ring, have groove in joint core Guan Shangyu sleeve joint, be used for being connected with sleeve, be provided with the square boss, equally distributed 2～3 on every side in joint core pipe bottom.

The utility model sleeve one side end is bent inwardly into a little fillet, and outwardly-bent one-tenth one chamfering of the other end has round square opening at the sleeve end that curves inwardly, and evenly distributes 2～3 on every side, and the part that curves inwardly cuts off a part at circle square opening place.

The utility model is compared with prior art, and is simple in structure, and processing and fabricating is easy, easy to install, and maximum characteristics are that bond strength is good, good sealing effect, and save raw material.

Description of drawings:

Fig. 1 is the utility model joint core duct ligation composition;

Fig. 2 is the utility model ring structure figure;

Fig. 3 is the utility model tube-in-tube structure figure;

Fig. 4 is that the utility model A is to projection drawing;

Fig. 5 is that the utility model B is to projection drawing;

Fig. 6 is the utility model assembling schematic representation.

Embodiment:

Its concrete structure as shown in drawings, 1 is joint core pipe, 2 is seal ring, 3 is sleeve, joint core pipe peripheral hardware annular boss 1A, circular groove 1B, joint core pipe has groove 1C with the sleeve joint and is used for being connected with sleeve, is provided with square boss 1D in joint core pipe bottom, is used for abutment sleeve, sleeve one side end is bent inwardly into a little fillet, be used for being connected with the core pipe, outwardly-bent one-tenth one chamfering of the other end is convenient to the insertion of connected pipe, have round square opening 3A at the sleeve end that curves inwardly, evenly distribute on every side 2～3, be used for abutment sleeve, be used to observe the degree of depth of being taken over insertion simultaneously, the part that curves inwardly cuts off a part of 3B at circle square opening place, is convenient to insert in the core pipe connecting groove.In a word, quilt is taken at the annular boss and the seal ring place of joint core tube wall and can be formed higher bond strength and better seal effect.

Claims

1, a kind of pipe coupling mainly is made up of joint core pipe, sleeve, it is characterized in that: be provided with annular boss (1A) at joint core pipe (1) outer wall, have circular groove (1B) on the joint core pipe (1), place seal ring (2) in circular groove (1B).

2, according to the described pipe coupling of claim 1, it is characterized in that: have groove (1C) in joint core pipe (1) and sleeve (3) joint, be used for being connected with sleeve (3).

3, according to claim 1 or 2 described pipe couplings, it is characterized in that: sleeve (3) one side end is bent inwardly into a little fillet, outwardly-bent one-tenth one chamfering of the other end.

4, according to the described pipe coupling of claim 3, it is characterized in that: be provided with square boss (1D) in joint core pipe (1) bottom, be evenly distributed with 2～3 on every side, correspondingly have round square opening (3A) at sleeve (3) end that curves inwardly, evenly distribute on every side 2～3, the part that curves inwardly cuts off a part (3B) at circle square opening place.