CN215635723U

CN215635723U - Flexible pipe for non-excavation replacement of old pipeline

Info

Publication number: CN215635723U
Application number: CN202122055295.0U
Authority: CN
Inventors: 韩兵兵
Original assignee: Anhui Haoyu Construction Engineering Co ltd
Current assignee: Anhui Haoyu Construction Engineering Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-25
Anticipated expiration: 2031-08-27

Abstract

The application discloses a flexible pipe for non-excavation of old pipeline is changed belongs to the field of pipeline renewal technique, including the body, the right-hand member fixed mounting of body lateral wall has right tighrening ring, and the left end fixed mounting of body lateral wall has left tighrening ring, installs the fastener on the body, and the fastener drives the inseparable butt of two adjacent bodies, and the fastener includes the spout, all installs the sand grip on left tighrening ring and the right tighrening ring, the mutual gomphosis of sand grip and spout. This application passes through the inseparable butt of two adjacent bodys of fastener drive to make the connection of adjacent body more firm, the kneck that sand grip and the mutual gomphosis of spout made the body is difficult for taking place the offset, improves the life of flexible pipe.

Description

Flexible pipe for non-excavation replacement of old pipeline

Technical Field

The application relates to the field of pipeline updating technology, in particular to a flexible pipe for trenchless replacement of an old pipeline.

Background

With the rapid development of urbanization, the diameter of the original pipeline is sometimes too small to meet daily requirements; in addition, old pipelines can also be damaged and aged and can not be used, and new pipelines often do not have new positions to lay, and both of these situations require pipeline renewal. The flexible pipeline has strong corrosion resistance and good flexibility, the manufacturing length of the pipeline is 6-8 meters, the number of joints is small, and the construction operation time is short, so the flexible pipeline is often used for replacing the old pipeline.

Chinese patent with publication number CN205383359U discloses a flexible pipe for trenchless replacement of old pipelines, which comprises a transmission layer, the transmission layer is sequentially provided with: an enhancement layer for increasing the structural stability of the transport layer; the inner protective layer can isolate the tensile layer from the transmission layer so as to prevent burrs of a steel wire braided joint of the tensile layer from damaging the transmission layer; the tensile layer is woven by high-strength steel wires to bear the axial tensile load of the flexible pipe; the heat insulation layer is used for providing heat insulation for the pipe conveying medium in the flexible pipe; and the outer protective layer is inevitably subjected to scratching and point load extrusion of the flexible pipe by the layer stone. However, the flexible pipes are long in length, and the connection between the adjacent flexible pipes is not firm enough, so that the position deviation is easy to occur at the interface, the flexible pipes are damaged, and the service life of the flexible pipes is shortened.

In view of the above-mentioned related technologies, the inventor thinks that the interface of the flexible pipe used for trenchless replacement of the old pipeline is not firm enough, and is easy to generate position deviation, and the service life of the flexible pipe is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the kneck that is used for the flexible pipe of the non-excavation of old pipeline to change firm inadequately, easily take place the offset, reduce the life's of flexible pipe problem, this application provides a flexible pipe for the non-excavation of old pipeline is changed.

The application provides a flexible pipe for non-excavation of old pipeline is changed adopts following technical scheme:

the utility model provides a flexible pipe for non-excavation of old pipeline is changed, includes the body, the right-hand member fixed mounting of body lateral wall has right tighrening ring, the left end fixed mounting of body lateral wall has left tighrening ring, install the fastener on the body, the fastener drive is adjacent two the inseparable butt of body, just the fastener includes the spout, a left side tighrening ring with all install the sand grip on the right tighrening ring, the sand grip with the mutual gomphosis of spout.

Through adopting above-mentioned technical scheme, the right-hand member fixed mounting of body lateral wall has right tighrening ring, left end fixed mounting has left tighrening ring, install the fastener between the left tighrening ring of right tighrening ring and adjacent body, the fastener is including solid fixed ring, through the inseparable butt of two adjacent bodies of solid fixed ring drive, thereby make the connection of adjacent body more firm, install the sand grip on the right tighrening ring of left tighrening ring, in the sand grip embedding spout, thereby make the difficult position offset that takes place of kneck of body, improve the life of flexible tube.

Preferably, the fastener includes solid fixed ring, gu fixed ring cover is established on the body, gu fixed ring's right-hand member integrated into one piece has the connecting pipe, the internal diameter of connecting pipe equals the external diameter of left side tighrening ring, the connecting pipe with install fastening bolt between the left side tighrening ring.

Through adopting above-mentioned technical scheme, solid fixed ring cover is established on the body, and integrated into one piece has the connecting pipe on solid fixed ring's the lateral wall, and the internal diameter of connecting pipe equals the external diameter of left tighrening ring, installs fastening bolt between connecting pipe and the left tighrening ring, closely the butt together with right tighrening ring and left tighrening ring through the fastener to make the body keep fixed in the axial.

Preferably, the right-hand member fixed mounting who gu fixed ring has a plurality of pressure spring, the pressure spring along gu fixed ring's the equidistant setting of central axis circumference, the pressure spring can with the inseparable butt of right tighrening ring.

Through adopting above-mentioned technical scheme, install the pressure spring that a plurality of equidistant setting between solid fixed ring and the right tighrening ring, under the effect of pressure spring, right tighrening ring has the trend that moves towards the left tighrening ring that is close to adjacent body to make adjacent body have the trend that moves towards the other side, make the body keep firm, reduce the destruction of the vibration that produces when the pipeline used to the pipeline simultaneously.

Preferably, three long-strip-shaped sliding grooves are formed in the inner side wall of the connecting pipe, the sliding grooves are formed in the length direction of the connecting pipe, the sliding grooves are communicated with the right end of the connecting pipe, three convex strips are integrally formed on the outer side wall of the right fastening ring and the outer side wall of the left fastening ring, and the cross section of each convex strip is equal to that of each sliding groove.

Through adopting above-mentioned technical scheme, three long banding spout has been seted up on the inside wall of connecting pipe, the spout sets up along the length direction of connecting pipe, homogeneous body shaping has three sand grip on the lateral wall of right tighrening ring lateral wall and left tighrening ring, three sand grip inlays respectively to be established in three spout, thereby make adjacent pipeline radially keep fixed, reduce the pipeline and take place pivoted probability, make the alignment of sand grip and spout need not rotate too big angle simultaneously, it is more convenient to make the construction.

Preferably, the left end of the pipe body is provided with a connecting groove, the right end of the pipe body is integrally formed with a connecting ring, and the connecting ring is embedded in the connecting groove of the adjacent pipe body.

Through adopting above-mentioned technical scheme, the spread groove has been seted up to the one end of body, and other end integrated into one piece has the go-between, and the go-between inlays to be established in the spread groove of adjacent body to make two adjacent mutual butts of body, make the kneck of body more firm.

Preferably, the size of the section of the connecting groove far away from the notch is smaller than that of the section of the connecting groove near the notch.

Through adopting above-mentioned technical scheme, the cross-sectional size that the body was kept away from to the go-between is less than the cross-sectional size that the go-between is close to the body, makes in the go-between changes the entering spread groove to it is convenient more quick that old pipeline changes.

Preferably, the connecting groove is far away from and is provided with the seal groove on the medial surface of notch, the go-between is kept away from integrated into one piece has the sealing ring on the side of body, the cross sectional shape of sealing ring equals the cross sectional shape of seal groove.

Through adopting above-mentioned technical scheme, seted up the seal groove on the spread groove, integrated into one piece has the sealing ring on the go-between, and the go-between inlays when establishing in the spread groove, and the sealing ring inlays simultaneously and establishes in the seal groove to make the connection of two adjacent bodys inseparabler, and adjacent body is changeed and is installed.

Preferably, a sealing ring is installed in the sealing groove, and the cross section of the sealing ring is equal to that of the sealing groove.

Through adopting above-mentioned technical scheme, install the sealing washer in the seal groove, the sealing washer can play absorbing effect, also can play the effect that the prevention building subsides simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixing ring drives the two adjacent pipe bodies to be tightly abutted, so that the adjacent pipe bodies are connected more firmly, the raised lines and the sliding grooves are mutually embedded, so that the position deviation of the interface of the pipe bodies is not easy to occur, and the service life of the flexible pipe is prolonged;

2. the messenger of pressure spring right tighrening ring has the trend that moves towards the left tighrening ring that is close to adjacent body to make the body keep firm, reduce the destruction of the vibration that produces when the pipeline used to the pipeline simultaneously.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of the tube.

FIG. 3 is a schematic view of the installation of the fastener.

Description of reference numerals: 1. a pipe body; 11. connecting grooves; 12. a sealing groove; 13. a connecting ring; 14. a seal ring; 15. a seal ring; 2. a fastener; 21. a fixing ring; 22. a connecting pipe; 23. a chute; 24. a convex strip; 25. a first threaded hole; 26. a second threaded hole; 27. a pressure spring; 28. fastening a bolt; 3. a right fastening ring; 4. a left fastening ring; 5. and (7) a gasket.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a flexible pipe for trenchless replacement of an old pipeline. Referring to fig. 1 and 2, a flexible pipe for non-excavation change of old pipeline includes body 1, the one end of body 1 is the left end, the other end is the right-hand member, spread groove 11 has been seted up on the left end terminal surface, the cross-sectional size that the notch was kept away from to spread groove 11 is less than the cross-sectional size that spread groove 11 is close to the notch, spread groove 11 has been kept away from and has been seted up seal groove 12 on the medial surface of notch, the cross-sectional shape of seal groove 12 equals the medial surface size that spread groove 11 kept away from the notch, seal groove 12 embeds is equipped with sealing washer 15, and sealing washer 15's cross-sectional shape equals the cross-sectional shape of seal groove 12. A connecting ring 13 is integrally formed on the end face of the right end, the connecting ring 13 is embedded in the connecting groove 11 of the adjacent pipe body 1, a sealing ring 14 is integrally formed on the side face, away from the end face of the right end, of the connecting ring 13, the cross section of the sealing ring 14 is equal to that of the sealing ring 15, and the sum of the thickness of the sealing ring 14 and the thickness of the sealing ring 15 is equal to the depth of the sealing groove 12.

Referring to fig. 2 and 3, the right-hand member fixed mounting of 1 lateral wall of body has right tighrening ring 3, the left end fixed mounting of 1 lateral wall of body has left tighrening ring 4, install gasket 5 between left tighrening ring 4 and the right tighrening ring 3, and the external diameter size of right tighrening ring 3 equals the external diameter size of left tighrening ring 4, fastener 2 is installed to the junction of left tighrening ring 4 and right tighrening ring 3, fastener 2 is including solid fixed ring 21, gu fixed ring 21 cover is established on the lateral wall of body 1, and gu fixed ring 21's internal diameter equals the external diameter of body 1, gu fixed ring 21's right-hand member fixed mounting has the pressure spring 27 that a plurality of equidistant set up, the other end of pressure spring 27 can with right tighrening ring 3 looks butt.

Referring to fig. 2 and 3, a connecting pipe 22 is integrally formed on the outer side wall of the connecting ring 13, the inner diameter of the connecting pipe 22 is equal to the outer diameter of the right fastening ring 3, three sliding grooves 23 arranged at equal intervals are formed on the inner side wall of the connecting pipe 22, three protruding strips 24 arranged at equal intervals are integrally formed on the outer side walls of the left fastening ring 4 and the right fastening ring 3, and the cross-sectional shape of the protruding strips 24 is equal to the cross-sectional shape of the sliding grooves 23. The convex strip 24 of the left fastening ring 4 is provided with a first threaded hole 25 on the side surface far away from the left fastening ring 4, the chute 23 is provided with a second threaded hole 26 on the inner side surface far away from the notch, and when the central axis of the first threaded hole 25 and the central axis of the second threaded hole 26 are collinear, the fastening bolt 41 is simultaneously arranged in the first threaded hole 25 and the second threaded hole 26 in a penetrating manner.

The implementation principle of the flexible pipe for trenchless replacement of the old pipeline in the embodiment of the application is as follows: when carrying out the non-excavation of old pipeline and changing, in the spread groove 11 with go-between 13 embedding adjacent body 1 to imbed sand grip 24 in the spout 23, rethread fastening bolt 28 links together connecting pipe 22 and left tighrening ring 4, thereby makes two adjacent body 1 inseparable butt and not take place the skew easily.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flexible pipe for non-excavation of old pipeline is changed, includes body (1), its characterized in that: the right-hand member fixed mounting of body (1) lateral wall has right tighrening ring (3), the left end fixed mounting of body (1) lateral wall has left tighrening ring (4), install fastener (2) on body (1), fastener (2) drive adjacent two the inseparable butt of body (1), just fastener (2) are including spout (23), left side tighrening ring (4) with all install sand grip (24) on right tighrening ring (3), sand grip (24) with spout (23) gomphosis each other.

2. A flexible pipe for trenchless replacement of old pipe as claimed in claim 1 wherein: fastener (2) are including solid fixed ring (21), gu fixed ring (21) cover is established on body (1), the right-hand member integrated into one piece of solid fixed ring (21) has connecting pipe (22), the internal diameter of connecting pipe (22) equals the external diameter of left tighrening ring (4), connecting pipe (22) with install fastening bolt (28) between left tighrening ring (4).

3. A flexible pipe for trenchless replacement of old pipe as claimed in claim 2 wherein: the right-hand member fixed mounting of solid fixed ring (21) has a plurality of pressure spring (27), pressure spring (27) along the equidistant setting of the central axis circumference of solid fixed ring (21), pressure spring (27) can with right tighrening ring (3) inseparable butt.

4. A flexible pipe for trenchless replacement of old pipe as claimed in claim 3 wherein: seted up three long banding on the inside wall of connecting pipe (22) spout (23), spout (23) are along the length direction setting of connecting pipe (22), spout (23) with the right-hand member intercommunication of connecting pipe (22), the lateral wall of right side tighrening ring (3) with homogeneous body shaping has threely on the lateral wall of left tighrening ring (4) sand grip (24), the cross sectional shape of sand grip (24) equals the cross sectional shape of spout (23).

5. A flexible pipe for trenchless replacement of old pipe as claimed in claim 1 wherein: the connecting groove (11) is formed in the left end of the pipe body (1), the connecting ring (13) is integrally formed at the right end of the pipe body (1), and the connecting ring (13) is embedded in the connecting groove (11) of the adjacent pipe body (1).

6. A flexible pipe for trenchless replacement of old pipe as claimed in claim 5 wherein: the size of the section of the connecting groove (11) far away from the notch is smaller than that of the section of the connecting groove (11) near the notch.

7. A flexible pipe for trenchless replacement of old pipe as claimed in claim 6 wherein: the connecting groove (11) is far away from the inner side surface of the notch, a sealing groove (12) is formed in the inner side surface of the notch, the connecting ring (13) is far away from the side surface of the pipe body (1), a sealing ring (14) is integrally formed in the side surface of the pipe body (1), and the cross section shape of the sealing ring (14) is equal to that of the sealing groove (12).

8. A flexible pipe for trenchless replacement of old pipe as claimed in claim 7 wherein: a sealing ring (15) is installed in the sealing groove (12), and the cross section shape of the sealing ring (15) is equal to that of the sealing groove (12).