CN2397341Y

CN2397341Y - Pipeline connecting fittings

Info

Publication number: CN2397341Y
Application number: CN 99234665
Authority: CN
Inventors: 刘伯荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-28
Filing date: 1999-05-28
Publication date: 2000-09-20
Anticipated expiration: 2009-05-28

Abstract

The utility model relates to a pipeline connecting fitting used for pipe installation, which is composed of a special flange, sea materials and a middle nodule, wherein both axial ends of the middle nodule are connected with pipelines and are additionally provided with conical surface grooves with large outer parts and small inner parts. When the special flange is fixed to the middle nodule, the inner side of the special flange is provided with conical surface bulges which are matched with the conical surface grooves. The pipeline connecting fitting can not damage to pipelines, the antirust and anticorrosive coatings of the pipeline fittings, and the strength of the pipelines in pipeline installation. The utility model has the characteristics of easy and reliable installation, good antirust and anticorrosive effect on the pipeline, low installation cost and long service life of the pipelines.

Description

A kind of pipeline connection fittings

The utility model relates to a kind of connection set that uses in the piping erection, relates in particular to a kind of pipeline connection fittings.

At present, in the various pipes installing engineering, for big caliber, as the piping erection more than the 50mm, owing to adopt operating difficulties when being threaded, therefore, being connected between its pipeline and pipeline, pipeline and the various pipes accessory, adopting welding mostly or carry out with the mode of clip connected.In installation process, it generally is to carry out before welding that the antirust, anti-corrosive of pipeline and pipe fittings is handled, and adopts welding manner to connect and will inevitably destroy the pipeline and the pipe fittings surface of handling through antirust, anti-corrosive.Therefore, after piping erection is fixing, also must carries out local antirust, anti-corrosive again and handle the place of welding, but this processing method generally can only outer surface be carried out, and internal surface can't be handled, and the coating of pipe surface is destroyed like this, will produce iron rust, shorten pipeline working life.Especially for the domestic water and the fire-fighting automatic spray water that adopt Coating Steel Pipe, influence the water quality of domestic water after pipeline gets rusty, jeopardize human health; Or cause the obstruction of fire-fighting automatic spray shower nozzle, influence the normal operation of automatic fire alarm and automatic fire extinguishing system, the safety that jeopardizes building and staff.Adopt the clip connected mode, generally all will weld muscle and can destroy pipe surface coating equally welding fixedly muscle or cut 1～2 road fixed groove on pipeline of 1～2 road on the pipeline, the outer surface coating that grooving has promptly destroyed pipeline can destroy the intensity of pipeline again.In addition, above-mentioned this dual mode also exists fitting operation inconvenience, shortcoming that cost is high for the piping erection of big caliber.

For overcoming above-mentioned defective, the purpose of this utility model is to provide a kind of pipeline connection fittings that can not destroy pipeline and pipe fittings antirust, anti-corrosive coating and pipeline strength.It can make the installation of pipeline more convenient, expense reduces.

The technical solution of the utility model realizes as follows: it is made up of special flange, sealing material and middle segmentum intercalaris, middle segmentum intercalaris can be pipe collar, pipeline valve or the pipe fittings that uses in the pipeline connection, the little conical surface groove of outer imperial palace is set up at the axial two ends that are connected with pipeline of segmentum intercalaris in described, and special flange and the middle segmentum intercalaris inboard fixedly the time is provided with the conical surface projection that matches with conical surface groove.

Above-mentioned pipe fittings is threeway, four-way, reducer, pressure reducing orifice or elastomer connector, above-mentioned sealing material can be seal washer or sealing stuffing, the internal diameter and the outer diameter tube of described seal washer are complementary, and the conical surface groove of the external diameter of seal washer and above-mentioned middle segmentum intercalaris is complementary.

The utility model compared with prior art, in the piping erection process, need not welding, need not grooving, also need not be threaded, segmentum intercalaris is fixedlyed connected mode in directly adopting with special flange, wherein the axial two ends of valve, pipe fittings are set up the little conical surface groove of outer imperial palace, more convenient during installation.Therefore, the utlity model has easy to install and usely, reliable, mounting cost is lower, and the pipeline antirust, anti-corrosive is effective, prolongs the pipeline characteristics in working life.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a kind of embodiment's of the utility model a mounting structure schematic representation;

Fig. 2 is the structural representation of segmentum intercalaris among Fig. 1;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the structural representation of special flange in the utility model;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the another kind of embodiment's of the utility model a mounting structure schematic representation.

Referring to Fig. 1-Fig. 6: the utility model pipeline connection fittings are made up of special flange 1, sealing material 3 and middle segmentum intercalaris 2, middle segmentum intercalaris 2 can be pipe collar, pipeline valve or the pipe fittings that uses in pipeline 6 connections, the pipe fittings here can be common pipe accessories such as threeway, four-way, reducer, pressure reducing orifice or elastomer connector, these pipe fittingss are become middle segmentum intercalaris 2, the inboard fixedly the time is provided with the conical surface projection 5 that matches with conical surface groove 4 with middle segmentum intercalaris 2 for the little conical surface groove 4 of imperial palace outside its axial two ends that are connected with pipeline 6 are set up just, special flange 1.Above-mentioned sealing material 3 can be seal washer or sealing stuffing, and the internal diameter of described seal washer and pipeline 6 external diameters are complementary, and the conical surface groove 4 of the external diameter of seal washer and described middle segmentum intercalaris 2 is complementary.Here be that middle segmentum intercalaris is illustrated the utility model with pipe fittings threeway and pipe collar dual mode only, other pipe fittings or valve are that the mode of middle segmentum intercalaris is similar with it.

Embodiment 1: Fig. 1 is that the utility model is a kind of embodiment's mounting structure schematic representation of middle segmentum intercalaris with the pipe fittings threeway.Referring to Fig. 1: the pipe fittings threeway set up be middle segmentum intercalaris 2, the conical surface groove 4 of middle segmentum intercalaris 2 is the conical surface groove, and the conical surface projection 5 of the special flange 1 that is complementary with it is the conical surface projection.In the radial outer end of segmentum intercalaris 2 also be provided with the screw of using when fixedlying connected 7 with special flange 1.During installation, middle segmentum intercalaris 2 is docking together two segment pipes 6, clamps seal ring 3 at the two ends of middle segmentum intercalaris 2 into two internal diameters match with pipeline 6 external diameters, external diameter matches with the middle segmentum intercalaris 2 garden conical surfaces; The seal ring 3 of segmentum intercalaris 2 was forced tightly to the centre by the flange 1 of two special uses during pincers were gone into, and two special flanges 1 are strained and fixed by bolt respectively with middle segmentum intercalaris 2, in the process of centre tension, made seal ring 3 produce the purpose that deformation reaches sealing at two special flanges.In addition, referring to Fig. 3: another mouth of pipe 8 of segmentum intercalaris 2 can be made as screw mouth or flange connection mouth in the threeway.

Embodiment 2: Fig. 6 is that the utility model is similar to another kind of embodiment's mounting structure schematic representation that pipe collar is middle segmentum intercalaris with one.Here with segmentum intercalaris 2 in the pipe collar conduct two segment pipes 6 are docking together, compare with embodiment 1, the screw of using when the radial outer end of middle segmentum intercalaris 2 does not have setting to fixedly connected with special flange 17, the middle segmentum intercalaris 2 of other structure and Fig. 1 is identical, and two special flanges 1 directly are strained and fixed by stay bolt during connection.

The utility model is applicable to and also is applicable to the installation of various pipes in the steel pipeline installing engineering.

Claims

1, a kind of pipeline connection fittings, it is characterized in that it is made up of special flange (1), sealing material (3) and middle segmentum intercalaris (2), segmentum intercalaris (2) can be pipe collar, pipeline valve or the pipe fittings that uses in pipeline (6) connection in described, the little conical surface groove (4) of outer imperial palace is set up at the axial two ends that are connected with pipeline (6) of segmentum intercalaris (2) in described, and described special flange (1) and middle segmentum intercalaris (2) inboard fixedly the time is provided with the conical surface projection (5) that matches with conical surface groove (4).

2, a kind of pipeline connection fittings according to claim 1, it is characterized in that described pipe fittings is threeway, four-way, reducer, pressure reducing orifice or elastomer connector, described sealing material (3) can be seal washer or sealing stuffing, the internal diameter of described seal washer and pipeline (6) external diameter is complementary, and the conical surface groove (4) of the external diameter of seal washer and described middle segmentum intercalaris (2) is complementary.

3, a kind of pipeline connection fittings according to claim 1 and 2 is characterized in that the conical surface groove (4) of described middle segmentum intercalaris (2) is the conical surface groove, and the conical surface projection (5) of described special flange (1) is the conical surface projection.

4,, it is characterized in that the radial outer end of described middle segmentum intercalaris (2) also is provided with the screw of using when fixedlying connected with special flange (1) (7) according to claim 1 or 2 or 3 described a kind of pipeline connection fittings.