CN2378605Y

CN2378605Y - Pipeline loose joint

Info

Publication number: CN2378605Y
Application number: CN 99214240
Authority: CN
Inventors: 李占臣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-05-17
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to a pipeline movable joint, which comprises an inner connection pipe, a female lock and an outer connection pipe, wherein, the contact surface of the outer connection pipe and the inner connection pipe is provided with a circumferential flute, and a sealing ring is arranged in the flute. The utility model can also comprises a pipe core arranged between the inner connection pipe and the outer connection pipe, a sealing ring is arranged between the pipe core and the inner connection pipe, and the sealing ring is in a sealing head shape. The inner connection pipe and the outer connection pipe can be both provided with a section of outer screw for connection. The utility model improves a traditional movable joint structure and is added with a pipe core, a sealing ring and inner and outer connection pipes which are provided with inner and outer screws, so the use flexibility of the movable joint is enhanced, and the pipeline repair is convenient. The utility model has the advantages of simple structure, simple manufacture, easy and rapid operation, etc., and the utility model can be widely suitable for being used in gas transmission pipelines and water supply pipelines with various standards.

Description

Pipe union

The utility model relates to a kind of pipe joint, particularly a kind of convenient for maintaining pipe union.

Be used to connect the union of water, feed channel, usually structure is that inner connecting tube is packed in the locknut, and props up the inboard gear of locknut, loads onto seal ring, externally connected pipe outside thread and locknut internal thread are screwed, its inner connecting tube mouth of pipe and externally connected pipe mouth of pipe internal thread be the outside thread of connecting pipeline tube mouth respectively again.This prior art union in use exists deficiency, when especially pipeline keeps in repair, often needs the dismounting union, because pipeline is set, it is small that time interval is taken in existing union apart, is not easy to maintain and replace pipe or zero, parts, and it is very inconvenient to operate.Particularly to different line portals, as the mouth of pipe of outside thread or internal thread, existing union can only therefrom be connected in series and could use by other parts, and is very cumbersome, again consume material.

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and a kind of simple in structure, good airproof performance is provided, is easy to dismounting, is convenient to the pipe union of maintenance operation.

The pipe union of the utility model design comprises inner connecting tube, locknut, externally connected pipe, has a circumferential groove on the surface of contact of described externally connected pipe and inner connecting tube, is provided with seal ring in the groove.

The pipe union of the utility model design can also comprise between inner connecting tube and the externally connected pipe and is provided with tube core, is provided with seal ring between tube core and the inner connecting tube, and described seal ring is end socket type shape.

The pipe union of the utility model design can also comprise that described externally connected pipe is provided with one section connection outside thread, and described inner connecting tube still is an internal thread.

The pipe union of the utility model design can also comprise that described inner connecting tube is provided with one section connection outside thread, and described externally connected pipe still is an internal thread.

The pipe union of the utility model design can also comprise that being equipped with one section on inner connecting tube and the externally connected pipe is connected and uses outside thread.

This practicality has improved traditional movable joint structure, set up tube core, seal ring and had internal thread and externally threaded inside and outside adapter, improved the use flexibility of union, made things convenient for the maintenance pipeline, have simple in structure, be easy to make, characteristics such as easy and simple to handle, quick, the air delivering pipeline and the supply channel that can be widely used in all size are installed and used.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 has the structural representation of the pipe union of groove for externally connected pipe.

Fig. 2 has the structural representation that tube core and inner connecting tube outer end are provided with externally threaded pipe union.

Wherein, label 1 is an inner connecting tube, and 2 is locknut, and 3 is tube core, and 4 is the end socket RunddichtringO, and 5 is externally connected pipe, and 6 is the O RunddichtringO, and 7 is groove.

Pipe union as shown in Figure 2, inner connecting tube 1 is packed in the locknut 2, and prop up the inboard location of locknut 2, wherein, after the tube core of setting up 3 packages seal ring 4, make seal ring 4 be close to inner connecting tube 1 inner side surface, the internal thread of the outside thread of externally connected pipe 5 and locknut 2 screws, and makes the inner side surface of externally connected pipe 5 be close to the seal ring 4 of tube core 3 the other ends.Especially, be provided with one section connection outside thread in the outer end of inner connecting tube, use with convenient.Described seal ring 4 can adopt rubber material to be made into band end socket type shape, and end socket can be wrapped on the tube core 3 two ends boss, and tube core 3 can adopt metallic material to make.Can make the tandem product of all size size according to GB predetermined diameter size.

Pipe union as shown in Figure 1 comprises inner connecting tube 1, locknut 2, externally connected pipe 5, has a circumferential groove 7 on the surface of contact of described externally connected pipe and inner connecting tube, is provided with O RunddichtringO 6 in the groove.

Claims

1, a kind of pipe union is characterized in that comprising inner connecting tube, locknut, externally connected pipe, has a circumferential groove on the surface of contact of described externally connected pipe and inner connecting tube, is provided with seal ring in the groove.

2, pipe union as claimed in claim 1 is characterized in that also comprising between inner connecting tube and the externally connected pipe being provided with tube core that be provided with seal ring between tube core and the inner connecting tube, described seal ring is end socket type shape.

3, pipe union as claimed in claim 1 is characterized in that also comprising that described externally connected pipe is provided with one section connection outside thread, and described inner connecting tube still is an internal thread.。

4, pipe union as claimed in claim 1 is characterized in that also comprising that described inner connecting tube is provided with one section connection outside thread, and described externally connected pipe still is an internal thread.。

5, pipe union as claimed in claim 1 is characterized in that also comprising that being equipped with one section on inner connecting tube and the externally connected pipe is connected and uses outside thread.