CN2418335Y

CN2418335Y - Expansion connection device for pipeline

Info

Publication number: CN2418335Y
Application number: CN 00229527
Authority: CN
Inventors: 刘鹏阶
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-28
Filing date: 2000-03-28
Publication date: 2001-02-07
Anticipated expiration: 2010-03-28

Abstract

The utility model discloses an expanding and connecting device for pipelines, relating to a connection technique for the pipelines. The expanding and connecting device for pipelines is composed of a wedge-shaped solenoid, an expansion sleeve pipe which is sheathed on the wedge-shaped solenoid, a sealing ring, a washer, and a nut in order to overcome the problem that the existing and traditional connection technique for the pipelines requires processing. The wedge-shaped solenoid is a metallic short pipe which is provided with a wedge-shaped front end and screw threads at the back. Because the structure of the expanding and connecting device for pipelines is simple, use of the expanding and connecting device for pipelines is convenient and safe.

Description

A kind of pipe expansion connection set

The utility model relates to a kind of pipeline connection technology, and the pipeline of small-bore water pipe, gas pipe, heating pipe etc. and pipeline in being particularly useful for, pipeline are connected with non-processing between the equipment.

Pipeline connection technology extensively and often is applied in installation, maintenance between pipeline and pipeline, pipeline and the equipment, change.Usually need use special tool to finish by the professional workforce, promptly at first pipeline opening be carried out " tapping " accordingly processing, pipeline opening is processed into the screw socket supporting with nut, twine a few rubbers or linen thread, fastening nut more in advance at the screw socket place then.Obviously, not only workload is big for this traditional way, and trouble.

The purpose of this utility model overcomes the problem that existing traditional pipeline connection technology exists with regard to being, and releases a kind of simple in structure, easy to operate, service-strong pipe expansion connection set.

The purpose of this utility model is achieved in that promptly to be made up of wedge screwed pipe, expansion sleeve, seal ring, packing ring, nut.The wedge screwed pipe is that a front end is wedge, the threaded metal short tube in back; Expansion sleeve is one to be enclosed within metal or the plastic tubulature that cuts on the wedge screwed pipe and middle; Seal ring, packing ring, nut are being sleeved on behind the expansion sleeve on the wedge screwed pipe successively, and seal ring is made by high temperature resistant, high pressure resistant, erosion-resisting rubber-plastics material, and packing ring and nut are metalwork.

The utlity model has following advantage and good effect:

1. simple in structure owing to the utility model, the cost performance height.

2. because the utility model is a kind of assembling pipe joint of non-machining type, therefore need not operate by the professional workforce.Do not need to use special-purpose " tapping " equipment, not limited by the place, therefore convenience quick for installation.

3. because good seal, thus safe and reliable, the leakage phenomenon of water, gas, liquid can not take place.

Describe in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural drawing, wherein: 1-wedge screwed pipe, 2-expansion sleeve, 3-seal ring, 4-packing ring, 5-nut, 6-road to be taken over.

As shown in Figure 1, the utility model is made up of wedge screwed pipe 1, expansion sleeve 2, seal ring 3, packing ring 4, nut 5.Expansion sleeve 2, seal ring 3, packing ring 4, nut 5 from left to right are sleeved on the wedge screwed pipe 1 successively.

Because the pipe diameter difference, so the utility model should be fit to the series product of different pipe diameters according to same principle and structure fabrication.

The utility model using method is as follows:

1. select and wait to take over the utility model of 6 same sizes for use, promptly the wedge maximum outside diameter of screwed pipe 1 should be slightly less than pipe diameter, makes just in time to insert.

2. the utility model left end is inserted and wait to take in 6 mouthfuls.

3. rotating nut 5, and wedge screwed pipe 1 is retreated; Expansion sleeve 2 retreats under the extruding at the wedge screwed pipe and expands gradually, and is close to and waits to take over 6 inwalls.

4. be rotated further nut 5, make to compress seal ring 3 and packing ring 4.

In a word, because the utility model has changed traditional pipe connecting method, and also simple in structure, esy to use, safe and reliable, therefore wide application prospect is arranged.

Claims

1, a kind of pipe expansion connection set is characterized in that being made up of wedge screwed pipe (1), expansion sleeve (2) seal ring (3), packing ring (4), nut (5):

1. wedge screwed pipe (1) is that a front end is wedge, the threaded metal short tube in back;

2. expansion sleeve (2) is one to be sleeved on metal or the plastic tubulature that cuts on the wedge screwed pipe (1) and middle;

3. behind expansion sleeve (2), seal ring (3), packing ring (4), nut (5) are sleeved on the wedge screwed pipe (1) successively, and seal ring (3) is made by high temperature resistant, high pressure resistant, erosion-resisting rubber material, and packing ring (4), nut (5) are metalwork.