CN213018191U

CN213018191U - Sealed socket type steel pipe lined with PE

Info

Publication number: CN213018191U
Application number: CN202021637969.7U
Authority: CN
Inventors: 梅畅; 潘望达
Original assignee: Hunan Dingchen Pipe Industry Co ltd
Current assignee: Hunan Dingchen Pipe Industry Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-20
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a lining PE's sealed socket joint formula steel pipe, including setting up socket portion and the bellmouth portion of the mutual fit socket joint at steel pipe main part both ends, the surface plastic-coated of steel pipe main part, internal surface set up lining PE pipe, socket portion top sets up the first kink of inside buckling, be provided with on the bellmouth portion with the second kink of first kink complex, it is provided with two sealing washer that are parallel to each other to lie in on the bellmouth portion between second kink and the bellmouth port, be provided with the water filling port between the sealing washer; the utility model discloses a inside lining PE pipe that sets up has not only solved intraductal water and has received the contaminated problem of corrosion because the pipe wall, moreover because PE pipe chemical stability is high, has antidetonation, shock resistance and the performance such as acid, alkali, salt corrosion of resisting, better avoids intraductal water to receive the pollution because of external environment factor.

Description

Sealed socket type steel pipe lined with PE

Technical Field

The utility model relates to a socket joint steel pipe technical field especially relates to a sealed socket joint formula steel pipe of inside lining PE.

Background

Compare in ordinary steel pipe, the socket joint formula steel pipe need not the welding during owing to connecting, direct butt joint can and receive extensive application, but the socket joint formula steel pipe is when using, often because the pipe wall inboard receives the corruption, the corrosion leads to the pollution of intraductal water, in order to solve this problem, also there are some socket joint formula steel pipes on the existing market to adopt the technology of plastic-coated to prevent the corrosion, but in the use of steel pipe, the plastic-coated of socket joint department inner wall is worn and torn by the steel pipe very easily, lead to the coating to destroy, not only influence the leakproofness of socket joint pipe, still can influence the quality of intraductal water, therefore, the utility model provides a inside lining PE and have good leakproofness ability socket joint formula steel pipe in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a sealed socket joint formula steel pipe of inside lining PE.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a sealed socket joint formula steel pipe of inside lining PE, is including setting up socket part and the bellmouth portion of the mutually supporting socket joint at steel pipe main part both ends, the surface plastic-coated of steel pipe main part, internal surface set up inside lining PE pipe, socket part top sets up the first kink of inside buckling, be provided with on the bellmouth portion with first kink complex second kink, lie in on the bellmouth portion be provided with two sealing washers that are parallel to each other between second kink and the bellmouth port, be provided with the water filling port between the sealing washer.

Furthermore, the lining PE pipe and the steel pipe main body are combined by adopting a pipe expanding process.

Furthermore, a hard sealing ring is further arranged at the port of the socket part, and the hard sealing ring is adjacent to one sealing ring close to the port.

Furthermore, a sealing cover is arranged on the water injection port.

Furthermore, the sealing ring, the hard sealing ring and the socket part are connected in an interference fit manner.

Compared with the prior art, the utility model provides a pair of inside lining PE's sealed socket joint formula steel pipe has following beneficial effect:

1. the lining PE pipe solves the problem that the water body in the pipe is polluted due to corrosion on the pipe wall, and has the properties of shock resistance, impact resistance, acid corrosion resistance, alkali corrosion resistance, salt corrosion resistance and the like due to high chemical stability of the PE pipe, so that the pollution of the water body in the pipe due to external environmental factors is better avoided;

2. the inner wall of the PE pipe is smooth, so that the PE pipe has ultralow friction resistance, and the conveying capacity of the pipeline is improved;

3. the hard sealing ring not only can play a certain sealing role, but also can fix and limit the sealing ring;

4. after socket joint formula steel pipe interconnect, through to setting up the water filling port injection liquid or the gas between the double containment ring, the leakproofness of detection pipeline that can be quick effectual.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic view of a steel pipe socket structure of the present invention;

fig. 2 is a partially enlarged schematic view of the socket a of the present invention;

wherein:

1-a steel pipe main body, 2-a socket part, 3-a socket part, 4-a sealing ring, 5-a water injection port, 21-a first bending part, 31-a second bending part, 32-a hard sealing ring and 51-a sealing cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is understood that the technical solutions of the embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are combined and contradictory or can not be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the utility model provides a PE-lined sealed socket steel pipe, which comprises a socket part 2 and a socket part 3 which are arranged at the two end parts of a steel pipe main body 1 and are matched with each other, wherein the outer surface of the steel tube body 1 is coated with plastics, the inner surface is provided with a lining PE tube, the top end of the spigot part 2 is provided with a first bending part 21 which is bent inwards, the socket part 3 is provided with a second bending part 31 which is matched with the first bending part 21, when the socket steel pipes are connected to each other, by the cooperation of the first bent portion 21 and the second bent portion 31 which are parallel to each other and are respectively located on the socket portion 2 and the socket portion 3, make there is a transition process during socket joint, avoid spigot portion 2 to cause wearing and tearing to 3 inner walls PE pipes of bellmouth portion, in addition, lie in on the bellmouth portion 3 between second kink 31 and the bellmouth port still to be provided with two sealing washer 4 that are parallel to each other, be provided with water filling port 5 between two sealing washer 4.

As a specific example, the lining PE pipe is combined with the steel pipe body 1 by a pipe expansion process.

Preferably, a hard sealing ring 32 is further provided at the port of the socket portion 3, the hard sealing ring 32 being located adjacent to one of the sealing rings 4 adjacent to the port.

Preferably, a sealing cap 51 is provided on the water filling port 5.

Preferably, the seal ring 4, the hard seal ring 32 and the socket 2 are connected by interference fit.

During the specific use, insert the socket portion 3 of another steel pipe main part 1 with the socket portion 2 of a steel pipe main part 1, in the connection process, through the cooperation of first kink 21 and second kink 31, can effectively avoid socket portion 2 to cause wearing and tearing to socket portion 3 inner wall PE pipe, connect the back of accomplishing, through annotating liquid or gas into water filling port 5, then cover sealed lid 51, if the pipe connection department leaks water or gas leakage, then explain this pipeline sealing insecure, thereby can detect the leakproofness of pipe connection.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a sealed socket joint formula steel pipe of inside lining PE, is including setting up socket part and the bellmouth portion of the mutually supporting socket joint at steel pipe main part both ends, its characterized in that, the surface plastic-coated of steel pipe main part, internal surface set up inside lining PE pipe, the socket part top sets up the first kink of inside buckling, be provided with on the bellmouth portion with first kink complex second kink, lie in on the bellmouth portion be provided with two sealing washers that are parallel to each other between second kink and the bellmouth port, be provided with the water filling port between the sealing washer.

2. The sealed socket steel pipe lined with PE of claim 1, wherein said PE-lined pipe is combined with said steel pipe body by a pipe expansion process.

3. The PE-lined sealed socket steel pipe of claim 1, wherein a hard sealing ring is further disposed at the port of the socket portion, said hard sealing ring being positioned adjacent to one of said sealing rings adjacent to the port.

4. The PE-lined sealed socket steel pipe as claimed in claim 1, wherein a sealing cap is provided on the water injection port.

5. The PE-lined sealed socket steel pipe as claimed in claim 3, wherein the seal ring, the hard seal ring and the spigot are connected by interference fit.