CN210600516U

CN210600516U - Double-wall corrugated pipe

Info

Publication number: CN210600516U
Application number: CN201921186750.7U
Authority: CN
Inventors: 陈帮荣
Original assignee: Suqian Yiyuan Plastic Industry Co Ltd
Current assignee: Suqian Yiyuan Plastic Industry Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-22
Anticipated expiration: 2029-07-26

Abstract

The utility model provides a double-walled bellows relates to the pipeline field, including first body and second body, the surface of first body with the surface of second body all is provided with the ripple layer to the first connector of one end fixedly connected with of first body, the one end fixedly connected with second connector of second body, the internal thread face has been seted up to the internal surface of first connector. The utility model discloses strengthened the ring rigidity of tubular product greatly, under the condition of equal load, the double-walled bellows only needs frivolous pipe wall just can satisfy the requirement, compare with the solid wall pipe with the material specification, can practice thrift raw and other materials about half, construction cost is low, construction convenience, light in weight, transport and connection are convenient, the construction is swift, maintenance work is simple, good low temperature resistant, anti-zhongjie, shock resistance, the leakproofness after connecting between effectual improvement first body and the second body, avoid connecting the back and take place to leak, moreover, the steam generator is simple in structure, and the installation is more convenient with the use.

Description

Double-wall corrugated pipe

Technical Field

The utility model relates to the field of pipelines, especially, relate to a double-walled bellows.

Background

The high-density polyethylene double-wall corrugated pipe is a novel pipe with an outer wall with an annular structure and a smooth inner wall, is firstly developed and succeeded in Germany in the early 80 s, is developed and perfected for more than ten years, is developed into a complete product series from a single variety, is mature in production process and use technology at present, has been greatly popularized and applied in developed countries such as Europe and America due to excellent performance and relatively economic manufacturing cost, is in an increasing trend stage in China, and all technical indexes reach use standards. The inner wall of the double-wall corrugated pipe is generally blue or black in color, yellow is used for part of brands of inner walls, and the pipe is required to be connected and fixed through joints when in use.

In the prior art, the position of the interface is larger than the size of the closing body when the double-arm corrugated pipe is connected, so that the position of the interface is preferentially stressed when external stress is applied, the sealing performance of the interface is poor, the stability of the pipeline connection is directly influenced, and the stability and the sealing performance are poor when the pipeline is connected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-walled bellows to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a double-walled bellows, includes first body and second body, the surface of first body with the surface of second body all is provided with the ripple layer to the first connector of one end fixedly connected with of first body, the one end fixedly connected with second connector of second body, the internal thread face has been seted up to the internal surface of first connector, the surface of second connector is provided with the external thread face, the one end of first body is located the inboard of first connector is provided with connecting device, the one end fixedly connected with sealing device of second connector.

Preferably, the first pipe body and the second pipe body have the same structure and are prepared by taking high-density polyethylene as a raw material.

Preferably, the outer wall of the corrugated layer is in an annular corrugated structure, and the outer thread surface is matched with the inner thread surface.

Preferably, the inner diameter of the second connector is the same as the first pipe body, and the outer diameter of the first connector is larger than the outer diameter of the first pipe body and smaller than the outer diameter of the corrugated layer.

Preferably, connecting device includes the spread groove, the spread groove is seted up in the one end of first body to two seal grooves have been seted up to spread groove inside, two the seal groove is annular structure, and two seal grooves are evenly seted up in one side of spread groove inner wall.

Preferably, the sealing device comprises a sealing block, wherein two sealing rings are fixedly connected to one end of the sealing block, the two sealing rings are rubber rings, and the surfaces of the two sealing rings are respectively matched with the inner surfaces of the corresponding two sealing grooves.

The utility model has the advantages that:

the utility model discloses the outer wall on ripple layer is annular ripple column structure, the ring rigidity of tubular product has been strengthened greatly, under the condition of waiting load, the double-walled bellows only needs frivolous pipe wall just can satisfy the requirement, compare with the solid wall pipe with the material specification, can practice thrift raw and other materials about half, engineering cost is low, construction convenience, light in weight, transport and connection convenience, the construction is swift, maintenance work is simple, good low temperature resistant, anti-zhongjie, shock resistance, the leakproofness after connecting between effectual improvement first body and the second body, avoid connecting the back and take place to leak, moreover, the steam generator is simple in structure, and installation and use are more convenient.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural view of a portion of the first connector shown in FIG. 1;

reference numerals: 1-a first tube; 2-a corrugated layer; 3-a second tube; 4-a first connector; 5-a second connector; 6-internal thread surface; 7-external thread surface; 8-a connecting device; 81-connecting groove, 82-sealing groove and 9-sealing device; 91-sealing block, 92-sealing ring.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-3, a double-wall corrugated pipe comprises a first pipe body 1 and a second pipe body 3, the first pipe body 1 and the second pipe body 3 have the same structure, are made of high density polyethylene, and have strong external pressure resistance, the surface of the first pipe body 1 and the surface of the second pipe body 3 are both provided with a corrugated layer 2, the outer wall of the corrugated layer 2 has an annular corrugated structure, so that the ring stiffness of the pipe is greatly enhanced, the double-wall corrugated pipe can meet the requirements only by a thin pipe wall under the condition of equal load, compared with a solid-wall pipe with the same material specification, the double-wall corrugated pipe can save about half of raw materials, has low construction cost, convenient construction, light weight, convenient transportation and connection, quick construction, simple maintenance, good low temperature resistance, middle street resistance, impact resistance, brittle temperature of 70 ° below zero, and no special protection measures need to be taken under the general low temperature condition, above 30 ° construction, construction in winter is convenient, has good shock resistance to the resistance of pipeline to soil load has been strengthened, and the one end fixedly connected with first connector 4 of first body 1, the one end fixedly connected with second connector 5 of second body 3, internal thread face 6 has been seted up to the internal surface of first connector 4, the surface of second connector 5 is provided with external thread face 7, and threaded structure is passed through to the inside of first connector 4 and threaded connection between second connector 5, makes things convenient for connection and fixed between first body 1 and the second body 3, external thread face 7 with internal thread face 6 looks adaptation to the internal diameter size of second connector 5 with the size of first body 1 is the same, the external diameter of first connector 4 is greater than the external diameter of first body 1 just is less than the external diameter of ripple layer 2, and connection and the fixed first body 1 and the second body 3 that do not influence between first body 4 and the second body 5 The size of the connection between the two pipe bodies is the same, the middle part of the connection between the two pipe bodies is convex, the normal flux between the first pipe body 1 and the second pipe body 3 can be ensured, the stability of the flux between the first pipe body 1 and the second pipe body 3 can be ensured, the connecting device 8 is arranged at the inner side of the first connecting head 4 at one end of the first pipe body 1, the connecting device 8 comprises a connecting groove 81, the connecting groove 81 is arranged at one end of the first pipe body 1, two sealing grooves 82 are arranged in the connecting groove 81, the two sealing grooves 82 are of annular structures, the two sealing grooves 82 are uniformly arranged at one side of the inner wall of the connecting groove 81, the sealing device 9 is fixedly connected at one end of the second connecting head 5, the sealing device 9 comprises a sealing block 91, and one end of the sealing block 91 is fixedly connected with two sealing rings 92, two sealing ring 92 is the rubber ring, and open two sealing ring 92's surface respectively with two that correspond sealing groove 82's internal surface looks adaptation, when connecting between first body 1 and second body 3, sealing block 91 blocks the inside of spread groove 81 completely, and when conflicting with one side of spread groove 81 when one side of sealing block 91, two not unidimensional sealing ring 92 on the sealing block 91 just block the inside of two seal grooves 82 that correspond, sealing ring 92 adopts waterproof rubber's material, and conflict between sealing ring 92's the surface and the internal surface of seal groove 82, the leakproofness after connecting between the first body 1 of effectual improvement and the second body 3, avoid connecting the back and take place to leak, moreover, the steam generator is simple in structure, and the installation is more convenient with the use.

The during operation, when needing to be connected between two pipelines, with first connector 4 on the first body 1 and the 5 threaded connection of second connector on the second body 3, when connecting between first body 1 and the second body 3, sealed piece 91 blocks the inside of spread groove 81 completely, and when the one side of sealed piece 91 is contradicted with one side of spread groove 81, two not unidimensional sealing ring 92 on the sealed piece 91 just block the inside of two seal grooves 82 that correspond, sealing ring 92 adopts water proof rubber's material, and conflict between the surface of sealing ring 92 and the internal surface of seal groove 82, the leakproofness after connecting between effectual improvement first body 1 and the second body 3, avoid taking place to leak after connecting.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A double-walled corrugated pipe, characterized by: including first body (1) and second body (3), the surface of first body (1) with the surface of second body (3) all is provided with ripple layer (2) to the first connector (4) of one end fixedly connected with of first body (1), the one end fixedly connected with second connector (5) of second body (3), interior thread face (6) have been seted up to the internal surface of first connector (4), the surface of second connector (5) is provided with external thread face (7), the one end of first body (1) is located the inboard of first connector (4) is provided with connecting device (8), the one end fixedly connected with sealing device (9) of second connector (5).

2. The double-walled corrugated pipe of claim 1, wherein: the first pipe body (1) and the second pipe body (3) have the same structure and are prepared by taking high-density polyethylene as a raw material.

3. The double-walled corrugated pipe of claim 1, wherein: the outer wall of the corrugated layer (2) is of an annular corrugated structure, and the outer thread surface (7) is matched with the inner thread surface (6).

4. The double-walled corrugated pipe of claim 1, wherein: the inner diameter of the second connector (5) is the same as the size of the first pipe body (1), and the outer diameter of the first connector (4) is larger than that of the first pipe body (1) and smaller than that of the corrugated layer (2).

5. The double-walled corrugated pipe of claim 1, wherein: connecting device (8) are including spread groove (81), spread groove (81) are seted up in the one end of first body (1) to spread groove (81) are inside to be seted up two seal grooves (82), two seal groove (82) are annular structure, and two seal groove (82) are evenly seted up in one side of spread groove (81) inner wall.

6. The double-walled corrugated pipe of claim 5, wherein: the sealing device (9) comprises a sealing block (91), wherein two sealing rings (92) are fixedly connected to one end of the sealing block (91), the two sealing rings (92) are rubber rings, and the surfaces of the two sealing rings (92) are respectively matched with the corresponding inner surfaces of the two sealing grooves (82).