CN211779647U

CN211779647U - Tail end binding device for CIPP (cleaning in Place) overturning lining pipe

Info

Publication number: CN211779647U
Application number: CN202020304058.6U
Authority: CN
Inventors: 王卫平
Original assignee: Lining Shanghai Co ltd
Current assignee: Lining Shanghai Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-10-27
Anticipated expiration: 2030-03-12

Abstract

The utility model provides a CIPP overturn lining pipe tail end binding device, which comprises a locking device, wherein the locking device is provided with a sealing device, and the other end of the sealing device is provided with an exhaust device; the exhaust device is a vent pipe in the air, and the exhaust device can form a one-way valve structure in water under the pressure of the water. The utility model discloses it is rational in infrastructure, solved the terminal problem and the quick and thoroughly exhaust problem of being washed out, easy operation is practical, labour saving and time saving, it is easy to exhaust, can not block up, automatic switch, fast, exhaust row is more thorough, greatly reduced by the risk of being washed out.

Description

Tail end binding device for CIPP (cleaning in Place) overturning lining pipe

Technical Field

The utility model belongs to the technical field of CIPP is restoreed in the non-excavation of underground piping, in particular to terminal ligature device of bushing pipe in CIPP upset.

Background

The urban development can be carried out without opening underground pipe networks, underground pipelines are continuously increased, and the scale of the pipe networks is gradually enlarged. The pipe network in the old city is complicated, and due to various reasons such as construction process of pipeline joints, durability of pipeline materials, construction of pipe network foundations and the like, structural damage phenomena such as cracking, water seepage and the like occur in partial pipelines in the process of operation for many years, so municipal maintenance units often need to reform the pipelines.

The trenchless pipeline repairing method is an in-situ curing method, which is called CIPP (cleaning in place) turnover lining method for short, the existing old pipeline is fully utilized for repairing, the repairing rate is high, the construction period is short, the cost is low, and the indexes of durability, corrosion resistance and the like can meet the requirements of municipal pipelines.

A water turning method underground pipeline non-excavation repair process, as shown in figure 1, adopts water pressure to turn a hose soaked by resin into a pipeline needing to be repaired from an inspection wellhead, the hose is tightly attached to the inner wall of the pipeline to be repaired, and the resin hose is solidified by a hot water spraying method to form a firm, continuous and smooth lining pipe tightly attached to the inner wall of an old pipe; when the inversion is half way through, the trailing end of the hose will enter the pipe and be submerged in the water.

As shown in fig. 2, in order to prevent water from flowing into the lining pipe 1 to affect the resin, the end of the lining pipe 1 must be bound and sealed, and in order to control the turning speed, a rope must be bound on the end of the lining pipe 1 to pull the lining pipe 1; after turning over to the far manhole, the end of the banded inner liner 1 is held in place by the rope.

When the lining pipe is turned forwards, air in the lining pipe flows to the tail end under the action of water pressure and is discharged, if the air in the lining pipe cannot be discharged, the tail part of the lining pipe is expanded more and more, and finally the tail part of the lining pipe cannot pass through the turning opening, so that an exhaust hole is required to be arranged before the tail end of the lining pipe enters, and the exhaust hole is sealed before the tail end of the lining pipe enters to avoid water backflow; the exhaust generally adopts 4 minutes plastic hose, and the terminal of two plastic hoses of joining together prevents the water to flow backward before the terminal entering into the water of interior liner pipe, has the following technical defect: one), resulting in air not being able to continue to vent; secondly), the plastic pipe is easily squeezed and flattened by the binding belt, so that the ventilation is not smooth, and the exhaust is very slow or cannot be performed.

The existing binding methods are generally two, namely binding by using a stainless steel binding belt and clamping by using square steel and bolts.

How to design a CIPP turns over terminal ligature device of inside lining pipe, how to solve the problem that the end is washed out and the problem of quick and thorough exhaust, becomes the problem that the solution is badly needed.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, an object of the present invention is to provide a CIPP overturn lining tube end binding device, for solving the problem existing in the prior art that when the lining tube is overturned forward, the air in the lining tube flows to the tail end under the action of water pressure and is discharged, if the air in the lining tube cannot be discharged, the tail of the lining tube will bulge more and more, and finally the tail of the lining tube cannot pass through the overturn opening, so that an exhaust hole must be provided before the end of the lining tube enters, and the exhaust hole must be sealed before entering to avoid water backflow; the tail ends of the two plastic hoses are connected before the tail end of the lining pipe enters water to prevent the water from flowing backwards, so that air cannot be continuously discharged; the plastic pipe is easily squeezed and flattened by the binding belt, the ventilation is not smooth, and the exhaust is very slow or cannot be performed.

In order to achieve the purpose, the utility model provides a CIPP turns over the terminal ligature device of inside lining pipe, the said ligature device includes the locking device, there are sealing means on the locking device, another end of the sealing means has exhaust apparatus; the exhaust device is a vent pipe in the air, and the exhaust device can form a one-way valve structure in water under the pressure of the water.

In an embodiment of the present invention, the locking device adopts a ribbon, the exhaust device is composed of a hard tube and a thin film sleeve, wherein one end of the hard tube is located in the tube at the end of the lining tube, and the ribbon tightens one end of the hard tube through the lining tube to form a sealing device;

the outer ring of the other end of the hard tube is sleeved with a film sleeve,

by adopting the technical scheme: when the film sleeve is immersed in water, the pressure of the water flattens the film sleeve to form a one-way valve structure.

In an embodiment of the present invention, the other end of the film sleeve is an open structure.

In an embodiment of the present invention, the locking device adopts a rope perforation sewing structure, the pipe wall of the end of the lining pipe is at least provided with two rows of perforations perpendicular to the length direction of the lining pipe, one row of perforations near the end of the lining pipe is used for the rope perforation sewing structure to lock the end, so as to prevent the end from being broken during the turning construction, and the other row of perforations is used for installing the string rope a to converge on the knot; the other end of the knot is connected with the pull rope;

after the whole rope perforation sewing structure is installed, a sealed plastic film bag is sleeved on the periphery of the whole tail end, and at least one exhaust pipe and one stay cord channel pipe are arranged at one end of the plastic film bag, which is far away from the tail end pipe orifice of the lining pipe; the other end of the plastic film bag is in contact with the outer surface of the lining pipe and is provided with a sealing structure A.

In an embodiment of the present invention, the rope perforation structure comprises a through hole set a and a through hole set B, wherein the through hole set a is close to the end of the inner bushing and is at least provided with three first through holes, the through hole set B is at least provided with two second through holes, the two second through holes are far away from the end of the inner bushing, and the second through holes are provided with the string rope a.

In one embodiment of the utility model, three first through holes are equidistantly arranged and are connected by a string rope B through sewing and the tail end is locked and can not be opened,

by adopting the technical scheme: the pulling force generated by the stringing rope A of the second through hole during the overturning construction of the lining pipe is more uniformly dispersed through the opposite-penetrating sewing structure of the stringing rope B of the first through hole, so that the tail end of the lining pipe is prevented from being pulled and damaged by the stringing rope A.

In an embodiment of the present invention, the sealing structure a is a sealing tape or a heat welding sealing structure.

In an embodiment of the present invention, the exhaust pipe and the pull rope passage pipe are arranged in parallel, and the pull rope passes through the pull rope passage pipe;

by adopting the technical scheme: the exhaust pipe adopts a film sleeve structure, and when the exhaust pipe is immersed in water, the pressure of the water flattens the exhaust pipe to form a one-way valve structure.

In an embodiment of the present invention, the sealing structure B is disposed between the pipe orifice of the pull rope passage pipe and the pull rope.

In an embodiment of the present invention, the sealing structure B is formed by winding a sealing tape or mechanically fastening.

As above, the utility model discloses a terminal ligature device of bushing pipe in CIPP upset, rational in infrastructure, solved the terminal problem and the quick and thoroughly carminative problem of being washed away, easy operation is practical, labour saving and time saving, it is easy to exhaust, can not block up, automatic switch, fast, exhaust row more thoroughly, greatly reduced by the risk of being washed away, popularization and application have good economic benefits and social.

Drawings

Fig. 1 is a schematic diagram of the construction of an underground pipeline trenchless repairing structure in the prior art.

FIG. 2 is a schematic view of a prior art lined pipe end banding arrangement.

Fig. 3 is a schematic view of an installation structure according to a first embodiment of the present invention.

Fig. 4 is a schematic view of a seam structure according to a second embodiment of the present invention.

Fig. 5 is a schematic view of an installation structure of the second embodiment of the present invention.

Fig. 6 is a schematic view of a connection structure of the string a in the second through hole and the string B in the first through hole according to the embodiment of the present invention.

In the figure: 1. a liner tube; 2. binding a belt; 3. a hard tube; 4. a film sleeve; 5. pulling a rope; 6. knotting; 7. a first through hole; 8. a second through hole; 9. a plastic film bag; 901. a pull rope passage tube; 902. an exhaust pipe; 903. and (4) sealing structure A.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 6. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Embodiment one, for ligature device of little pipe diameter (e.g. pipe diameter 500mm below):

as shown in fig. 3, the utility model provides a CIPP overturn lining pipe end binding device, which comprises a locking device, wherein a sealing device is arranged on the locking device, and an exhaust device is arranged at the other end of the sealing device; the exhaust device is a vent pipe in the air and can form a one-way valve structure under the pressure of water in the water;

the locking device adopts a ribbon 2, the exhaust device consists of a hard tube 3 and a film sleeve 4, wherein one end of the hard tube 3 is positioned in the tube at the tail end of the lining tube 1, and the ribbon 2 tightens one end of the hard tube 3 through the lining tube 1 to form a sealing device;

the outer ring of the other end of the hard tube 3 is sleeved with a film sleeve 4, and the technical scheme is that: when the film sleeve 4 is immersed in water, the film sleeve is flattened by the pressure of the water to form a one-way valve structure;

the other end of the film sleeve 4 is of an opening structure;

because the small pipe diameter (such as the pipe diameter below 500 mm) is easy to bind, a stainless steel binding belt is selected, and the hard pipe 3 is a rigid hard pipe and cannot be squeezed flat by the stainless steel binding belt; one end of the hard tube 3 exposed outside is sleeved with a section of film sleeve 4;

the film sleeve 4 is open and air in the inner liner 1 can be easily discharged. When the end of the film cover 4 is sunk into water, the film cover 4 is squashed by the pressure of the water, and the water cannot flow into the film cover 4. This membrane sleeve 4 acts as a one-way valve; as long as the air pressure inside is greater than the water pressure outside, the air will be discharged automatically, this simple structure is practical.

Embodiment two, to the ligature device of medium and large pipe diameter (pipe diameter more than 500 mm), adopt the rope perforation to make up the structure:

as shown in fig. 4, the locking device adopts a rope perforation sewing structure, the pipe wall at the tail end of the lining pipe 1 is at least provided with two rows of perforations vertical to the length direction of the lining pipe 1, the row of perforations close to the tail end of the lining pipe 1 is used for locking the tail end by the rope perforation sewing structure so as to prevent the tail end from being broken during the turnover construction, and the other row of perforations is used for installing a serial rope a and converging the serial rope a at a knot 6; the other end of the knot 6 is connected with the pull rope 5;

as shown in fig. 5, after the whole rope perforation sewing structure is installed, the whole end periphery is sleeved with a sealed plastic film bag 9, and one end of the plastic film bag 9 away from the end orifice of the liner tube 1 is provided with at least one exhaust tube 902 and one stay cord passage tube 901; the other end of the plastic film bag 9 is in contact with the outer surface of the lining pipe 1 and is provided with a sealing structure A903;

as shown in fig. 6, the two rows of rope perforation sewing structures include a through hole group a and a through hole group B, wherein the through hole group a is close to the end of the lining pipe 1 and is provided with at least three first through holes 7, the through hole group B is provided with at least two second through holes 8, the two second through holes 8 are far from the end of the lining pipe 1, and the second through holes 8 are provided with serial connection ropes a;

three first through-hole 7 equidistance arrange and through string rope B to wearing to sew up to connect and can't open with the end lock, through adopting this kind of technical scheme: the pulling force generated by the stringing rope A of the second through hole 8 during the overturning construction of the lining pipe is more uniformly dispersed through the opposite-penetrating sewing structure of the stringing rope B of the first through hole 7, so that the tail end of the lining pipe 1 is prevented from being pulled and damaged by the stringing rope A;

the sealing structure A903 adopts any one of a sealing adhesive tape or a hot-melt welding seal;

the exhaust pipe 902 and the pull rope channel pipe 901 are arranged in parallel, and the pull rope 5 penetrates out of the pull rope channel pipe 901; by adopting the technical scheme: the exhaust pipe 902 adopts a film sleeve structure, and when the exhaust pipe 902 is immersed in water, the pressure of the water crushes the exhaust pipe 902 to form a one-way valve structure;

a sealing structure B is arranged between the pipe orifice of the pull rope channel pipe 901 and the pull rope 5;

the sealing structure B adopts any one of winding of a sealing adhesive tape or mechanical fastening;

after the pull rope 5 is tied up, in order to prevent water from flowing into the lining pipe 1 from the tail end of the lining pipe 1 and exhaust air, a plastic film bag 9 is sleeved outside the tail end of the lining pipe 1, one end of the plastic film bag 9 is sealed with the surface of the lining pipe 1, and two small openings extending out are formed in the other end of the plastic film bag 9; the tail end of the lining pipe 1 is sewn by a high-strength pull rope 5, the risk of being punched is greatly reduced by the sewn tail end, and the operation process is simple, convenient and quick; the waterproof sealing and the air exhaust of the tail end of the lining pipe 1 are completed by a plastic film bag 9, one end of the plastic film bag 9 is fixed and sealed on the outer surface of the lining pipe 1, an opening at the other end is used for penetrating a pull rope 5, and the opening is sealed by an adhesive tape after the pull rope 5 penetrates; the other opening is used for exhausting air, the exhaust principle is that the exhaust pipe 902 adopts a film sleeve structure, and when the exhaust pipe 902 is immersed in water, the pressure of the water collapses the exhaust pipe 902 to form a one-way valve structure.

In the third embodiment, when the lining pipe 1 adopts more than two layers of structures, the rope perforation sewing structure adopts a soft melting method to bond all the layers of the lining pipe 1 together; enough distances are reserved between the through hole group A and the tail end of the lining pipe 1 and between the through hole group B and the tail end of the lining pipe 1, and the two serial ropes A are positioned on the outer ring of the lining pipe 1.

To sum up, the utility model provides a terminal ligature device of bushing pipe in CIPP upset, rational in infrastructure has solved terminal problem and the quick and thoroughly carminative problem of being washed out, and easy operation is practical, labour saving and time saving, and it is easy to exhaust, can not block up, automatic switch, fast, exhaust row gets more thorough, greatly reduced by the risk of being washed out. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a terminal ligature device of bushing pipe in CIPP upset which characterized in that: the binding device comprises a locking device, a sealing device is arranged on the locking device, and an exhaust device is arranged at the other end of the sealing device; the exhaust device is a vent pipe in the air, and the exhaust device can form a one-way valve structure in water under the pressure of the water.

2. The CIPP inversion liner tube end banding device of claim 1, wherein: the locking device adopts a ribbon (2), the exhaust device consists of a hard tube (3) and a film sleeve (4), wherein one end of the hard tube (3) is positioned in the tube at the tail end of the lining tube (1), and the ribbon (2) tightly ties one end of the hard tube (3) through the lining tube (1) to form a sealing device;

the outer ring of the other end of the hard tube (3) is sleeved with a film sleeve (4), and when the film sleeve (4) is immersed in water, the film sleeve is flattened by the pressure of the water to form a one-way valve structure.

3. The CIPP inversion liner tube end banding device of claim 2, wherein: the other end of the film sleeve (4) is of an open structure.

4. The CIPP inversion liner tube end banding device of claim 1, wherein: the locking device adopts a rope perforation sewing structure, at least two rows of perforations vertical to the length direction of the lining pipe (1) are arranged on the pipe wall at the tail end of the lining pipe (1), one row of perforations close to the tail end of the lining pipe (1) are used for locking the tail end by the rope perforation sewing structure, the rope perforation sewing structure is used for preventing the tail end from being punched during the turnover construction, and the other row of perforations are used for installing a serial rope A and converging the serial rope A to a knot (6); the other end of the knot (6) is connected with the pull rope (5);

after the whole rope perforation sewing structure is installed, a plastic film bag (9) is sleeved on the periphery of the whole tail end, and at least one exhaust pipe (902) and one pull rope channel pipe (901) are arranged at one end, away from the tail end pipe orifice of the lining pipe (1), of the plastic film bag (9); the other end of the plastic film bag (9) is in contact with the outer surface of the lining pipe (1) and is provided with a sealing structure A (903).

5. The CIPP inversion liner tube end banding device of claim 4, wherein: two rows the rope perforation sewing structure include through hole group A, through hole group B, wherein through hole group A is close to interior bushing pipe (1) end and is provided with three first through hole (7) at least, through hole group B is provided with two second through holes (8) at least, and interior bushing pipe (1) end is kept away from to two second through holes (8), and string rope A is installed in second through hole (8).

6. The CIPP inversion liner tube end banding device of claim 5, wherein: the three first through holes (7) are arranged at equal intervals, are connected in a penetrating and sewing mode through the string connecting ropes B, and lock the tail ends of the first through holes, and cannot be opened, pulling force generated when the string connecting ropes A of the second through holes (8) are turned over in the lining pipe (1) is dispersed more uniformly through the string connecting ropes B of the first through holes (7) in the penetrating and sewing mode, and the tail end of the lining pipe (1) is prevented from being pulled and damaged by the string connecting ropes A.

7. The CIPP inversion liner tube end banding device of claim 4, wherein: the sealing structure A (903) adopts any one of sealing adhesive tape or hot-melt welding sealing.

8. The CIPP inversion liner tube end banding device of claim 4, wherein: the exhaust pipe (902) and the pull rope channel pipe (901) are arranged in parallel, and the pull rope (5) penetrates out of the pull rope channel pipe (901); the exhaust pipe (902) adopts a film sleeve structure, and when the exhaust pipe (902) is immersed in water, the pressure of the water crushes the exhaust pipe (902) to form a one-way valve structure.

9. The CIPP inversion liner tube end banding device of claim 8, wherein: and a sealing structure B is arranged between the pipe orifice of the pull rope channel pipe (901) and the pull rope (5).

10. The CIPP inversion liner tube end banding device of claim 9, wherein: the sealing structure B adopts any one of sealing adhesive tape winding or mechanical fastening.