CN219300214U

CN219300214U - Lining for repairing underground pipeline without digging

Info

Publication number: CN219300214U
Application number: CN202320865023.3U
Authority: CN
Inventors: 张银干; 郑传静; 张洁; 韩旭; 王俊
Original assignee: Hefei Zhongchuang Pipeline Engineering Co ltd
Current assignee: Hefei Zhongchuang Pipeline Engineering Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-04
Anticipated expiration: 2033-04-18

Abstract

The application relates to an underground pipeline repairing lining for non-excavation, which comprises glass fiber cloth, wherein both ends of the glass limiting cloth are respectively provided with a conveying frame structure, the inner side of the glass fiber cloth is provided with a plurality of inner supporting rings, the outer sides of the inner supporting rings are fixedly connected with air bags attached to the inner wall of the glass limiting cloth, the inner sides of the inner supporting rings are provided with intermediate pipes communicated with the inner supporting rings, and the intermediate pipes are communicated with an external gas transmission structure; the inner supporting rings are detachably connected, and the total axial length of the inner supporting rings is smaller than the width of the glass fiber cloth; according to the scheme, through setting up the internal stay ring of mutual screw thread concatenation, the glass fiber cloth width of matching difference reduces the possibility of resin contact in gasbag and the glass fiber cloth in the internal stay ring outside to guarantee in the solidification process, can not take place the adhesion between gasbag and the glass fiber cloth, compare in prior art, promoted the firm degree that glass fiber cloth bonds, promoted the life of gasbag simultaneously.

Description

Lining for repairing underground pipeline without digging

Technical Field

The application relates to the technical field of pipeline restoration, in particular to an underground pipeline restoration lining for non-excavation.

Background

The non-excavation point repairing method for urban pipeline is characterized by that when the pipeline is locally cracked, leaked and broken, and emergency repair is required, the glass fibre felt cloth coated with resin mixed liquor is tightly pressed against the inner wall of pipeline by means of air bag, and solidified by means of normal temp., heating or UV irradiation so as to form new lining tube in the repairing point pipe. The dot-shaped repair technology has the characteristics of strong pertinence, high construction speed and the like, does not need to repair the whole section, and only needs to repair the damaged part, so that the method can greatly reduce the economic cost, and is widely applied to foreign pipeline repair engineering.

Because the resin is smeared on the inner side of the glass fiber felt cloth, when the glass fiber felt cloth is extruded by external force, the gap between the inner sides of the glass fiber cloth is reduced, so that the resin flows to the positions on the two sides, and finally redundant resin is extruded from the inner sides of the glass fiber felt cloth. Accordingly, to solve the above-mentioned problems, the present application provides an underground pipe repair lining for non-excavation.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

In order to solve the problem that the existing glass fiber cloth is easy to adhere to an air bag during arrangement, the application provides an underground pipeline repairing lining for non-excavation.

The lining for repairing the underground pipeline without excavation comprises glass fiber cloth, wherein conveying frame structures are arranged at two ends of the glass limiting cloth, a plurality of inner supporting rings are arranged on the inner side of the glass fiber cloth, air bags attached to the inner wall of the glass limiting cloth are fixedly connected to the outer sides of the inner supporting rings, intermediate pipes communicated with the inner supporting rings are arranged on the inner sides of the inner supporting rings, and the intermediate pipes are communicated with an external gas transmission structure;

the inner supporting rings are detachably connected, and the total axial length of the inner supporting rings is smaller than the width of the glass fiber cloth.

Preferably, the two ends of the middle pipe are respectively provided with a first thread section and a second thread section, and the first thread section is matched with the second thread section.

Preferably, a plurality of air pipes are annularly arranged between the middle pipe and the inner supporting ring, and two ends of each air pipe are respectively communicated with the middle pipe and the inner supporting ring.

Preferably, the first middle pipe thread section at the forefront end is in threaded connection with an end cover, and the second middle pipe thread section at the rearmost end is in threaded connection with a connecting pipe.

Preferably, the first rotating groove is formed in the end cover, the second rotating groove is formed in the connecting pipe, the two conveying frame structures comprise a support and a rotating ring, the rotating ring is respectively connected to the outer side of the first rotating groove and the outer side of the second rotating groove in a rotating mode, the support is welded to the outer wall of the rotating ring, the side view of the support is in an inverted V-shaped structure, and the bottom end of the support is rotationally connected with two rollers.

In summary, the present application includes the following beneficial technical effects:

through setting up the interior ring that props of mutual screw thread concatenation, match different glass fiber cloth width, reduce the gasbag in the interior ring outside and the possibility of resin contact in the glass fiber cloth to guarantee in the solidification process, can not take place the adhesion between gasbag and the glass fiber cloth, compare in prior art, promoted the firm degree that glass fiber cloth bonds, promoted the life of gasbag simultaneously.

Drawings

FIG. 1 is an isometric view of a first embodiment of the present application;

FIG. 2 is a right side isometric view of a first embodiment of the present application;

FIG. 3 is a left side isometric exploded view of one embodiment of the present application;

FIG. 4 is a right side isometric exploded view of one embodiment of the present application;

fig. 5 is a diagram showing the construction of an inner support ring in the first embodiment of the present application.

Reference numerals illustrate: 1. glass fiber cloth; 2. an inner support ring; 3. a middle tube; 301. a first thread section; 302. a second thread section; 4. an air pipe; 5. an air bag; 6. an end cap; 601. rotating the first groove; 7. a bracket; 701. a swivel; 8. a roller; 9. a connecting pipe; 901. a third thread section; 902. rotating the second groove; 903. and a thread section IV.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

Example 1

Referring to fig. 1-5, an underground pipeline repair lining for non-excavation, including glass fiber cloth 1, both ends of glass spacing cloth all are provided with and transport a structure, its characterized in that: the inner side of the glass fiber cloth 1 is provided with a plurality of inner supporting rings 2, the outer side of the inner supporting rings 2 is fixedly connected with an air bag 5 attached to the inner wall of the glass limit cloth, the inner side of the inner supporting rings 2 is provided with a middle pipe 3 communicated with the inner supporting rings, and the middle pipe 3 is communicated with an external gas transmission structure;

the inner support rings 2 are detachably connected, the total axial length of the inner support rings 2 is smaller than the width of the glass fiber cloth 1, and the situation that the air bag 5 is not contacted with the glass limit cloth edge is ensured, so that the phenomenon that resin directly flows to the outer wall of the air bag 5 to cause adhesion between the air bag 5 and the glass limit cloth is avoided;

the two ends of the middle pipe 3 are respectively provided with a first thread section 301 and a second thread section 302, the first thread section 301 and the second thread section 302 are matched, the first thread section 301 of the next middle pipe 3 can be connected onto the second thread section 302 of the previous middle pipe 3 in a threaded manner, so that the inner supporting rings 2 are connected with each other, a plurality of air pipes 4 are annularly arranged between the middle pipe 3 and the inner supporting rings 2, and the two ends of the air pipes 4 are respectively communicated with the middle pipe 3 and the inner supporting rings 2;

the end cover 6 is connected to the first thread section 301 of the foremost middle pipe 3 in a threaded manner, the connecting pipe 9 is connected to the second thread section 302 of the rearmost middle pipe 3 in a threaded manner, a third thread section 901 matched with the connecting pipe 9 is arranged at one end, close to the second thread section 302, of the connecting pipe 9, a fourth thread section 903 matched with the connecting pipe 9 is arranged at one end, far away from the second thread section 302, of the connecting pipe 9, a first rotating groove 601 is arranged on the end cover 6, a second rotating groove 902 is arranged on the connecting pipe 9, the two conveying frame structures comprise a support 7 and a rotating ring 701, the rotating ring 701 is respectively connected to the outer sides of the first rotating groove 601 and the second rotating groove 902 in a rotating manner, the support 7 is welded to the outer wall of the rotating ring 701, the support 7 is in an inverted V-shaped structure in a side view, two idler wheels 8 are connected to the bottom end of the support 7 in a rotating manner, and the stability of the inverted V-shaped support 7 is guaranteed when the device is conveyed into a pipeline.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a lining is used to non-excavation of underground pipe repair, includes glass fiber cloth (1), and the both ends of glass spacing cloth all are provided with and transport a structure, its characterized in that: the inner side of the glass fiber cloth (1) is provided with a plurality of inner supporting rings (2), the outer side of each inner supporting ring (2) is fixedly connected with an air bag (5) attached to the inner wall of the glass limiting cloth, the inner side of each inner supporting ring (2) is provided with an intermediate pipe (3) communicated with the inner supporting ring, and the intermediate pipes (3) are communicated with an external gas transmission structure;

the inner supporting rings (2) are detachably connected, and the total axial length of the inner supporting rings (2) is smaller than the width of the glass fiber cloth (1).

2. An underground pipeline rehabilitation trenchless liner according to claim 1 wherein: the two ends of the middle pipe (3) are respectively provided with a first thread section (301) and a second thread section (302), and the first thread section (301) is matched with the second thread section (302).

3. An underground pipeline rehabilitation trenchless liner according to claim 2 wherein: a plurality of air pipes (4) are annularly arranged between the middle pipe (3) and the inner supporting ring (2), and two ends of each air pipe (4) are respectively communicated with the middle pipe (3) and the inner supporting ring (2).

4. An underground pipeline rehabilitation trenchless liner according to claim 1 wherein: the first threaded section (301) of the middle pipe (3) at the forefront end is in threaded connection with an end cover (6), and the second threaded section (302) of the middle pipe (3) at the rearmost end is in threaded connection with a connecting pipe (9).

5. An underground pipeline rehabilitation non-excavation liner according to claim 4, wherein: the end cover (6) is provided with a first rotating groove (601), the connecting pipe (9) is provided with a second rotating groove (902), the two conveying frame structures comprise a support (7) and a rotating ring (701), the rotating ring (701) is respectively connected to the outer sides of the first rotating groove (601) and the second rotating groove (902) in a rotating mode, the support (7) is welded to the outer wall of the rotating ring (701), the side view of the support (7) is of an inverted V-shaped structure, and the bottom end of the support (7) is rotationally connected with two idler wheels (8).