CN217382161U

CN217382161U - Grid lining pipe

Info

Publication number: CN217382161U
Application number: CN202220308642.8U
Authority: CN
Inventors: 商海光; 郝光斌; 王玉强; 孙海超; 马聪
Original assignee: Shandong Kelinruier Pipeline Engineering Co ltd
Current assignee: Shandong Kelinruier Pipeline Engineering Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-09-06
Anticipated expiration: 2032-02-16

Abstract

The utility model provides a grid lining pipe, belonging to the technical field of lining pipes, which comprises an original pipeline; the lining pipe is arranged in the original pipeline; a plurality of grids which are fixed on the circumferential surface of the lining pipe and are uniformly distributed; the filler is filled between the original pipeline and the lining pipe; and a filling mechanism provided with two sets; the lining pipe in the utility model is applied to the lining of a new pipeline or an old pipeline, and especially used for repairing the lining of a damaged concrete prefabricated pipeline; after being installed, the grids on the lining pipe generate a certain distance space with the original pipeline, so that the filler can be uniformly poured into each interlayer space between the original pipeline and the lining pipe along the grids, the damage of the lining pipe caused by repeated internal and external pressure is reduced, the service life of the lining pipe is prolonged, and the lining pipe has obvious economic and social benefits.

Description

Grid lining pipe

Technical Field

The utility model belongs to the technical field of the interior bushing pipe, concretely relates to interior bushing pipe of grid.

Background

There are tens of thousands of underground pipes for civil and industrial use. These include water supply lines, sewage lines, storm water lines, and professional delivery lines. Because these pipes are mostly installed underground, they are often subjected to mechanical stress from the environment and various chemical corrosions resulting in damage to the pipes. For example, pipes may age naturally over time, pipe bodies are worn, corroded, and the like by the fluid in the pipe, and ambient environmental factors such as: corrosion of surface water to the pipe body, and the like. All of these factors have, over time, led to the development of holes, cracks and other problems requiring repair to prevent leakage of the fluid being transported within the pipe, for which conventional solutions have involved digging out the problem pipe and replacing it with a new one. But with tens of thousands of lengths of broken pipes, this solution is too expensive to solve. Moreover, some pipes are located directly beneath streets or other facilities and if excavation is to be done, this can lead to disturbing public order and require restoration of the original appearance after replacement is complete. In order to solve the problems of the conventional methods, the trenchless repairing of the pipe lining has become a very prosperous industry in recent years.

One relatively recent and effective technique involves trenchless rehabilitation of existing pipelines with plastic-lined pipes, such as High Density Polyethylene (HDPE) pipes. The plastic lining pipe is inserted into the original pipeline through a technical means to form the composite pipe, and the plastic lining pipe isolates mesons in the original pipeline so as to play the roles of sealing, corrosion resistance and wear resistance and restore the role of the original pipeline. The outer diameter of the plastic lined pipe must be smaller than the inner diameter of the original pipe to allow the lined pipe to be inserted long distances into the pipe, but it is undesirable that the plastic lined pipe diameter be too small (preferably an interference) relative to the inner diameter of the original pipe so as not to significantly reduce the capacity of the repaired pipe system.

Therefore, it is necessary to perform an intervention on the outer diameter of the plastic lined pipe before installation in order to provide a sufficient clearance between the two to facilitate installation of the plastic lined pipe. The known method for changing the outer diameter of the lining pipe is a compression method and a deformation method, wherein the outer diameter of the lining pipe is temporarily reduced to about 10% of the original pipe by special equipment, and after the lining pipe is successfully inserted, the outer diameter of the plastic lining pipe is restored to the original pipe by heating, pressurizing and the like so as to be tightly attached to the original pipe. The deformation method is to fold and bundle the plastic lining pipe to reduce the volume to 1/3 of the original volume, and after the successful penetration, the plastic lining pipe is pressurized to stretch the bundling belt to restore the original shape.

Although the inner lining technology is widely adopted at present, various practical problems exist in the use of some pipelines, for example, when a plastic inner lining is adopted for a concrete prefabricated pipe, the inner diameters of the concrete prefabricated pipe are greatly different, the inner diameters of each concrete pipe are greatly different, especially the concrete prefabricated pipe before a long time, the difference caused by the lagging technology and the irregular quality of the concrete prefabricated pipe is larger, and the concrete prefabricated pipe with various pipe diameters also exists in a section of pipeline. After the plastic lining pipe is lined in the pipeline, the plastic lining pipe is difficult to completely joint with the original pipeline in the recovery process, and a section of plastic lining pipe can not be opened (the inner diameter of the concrete pipe is too small) or a large space is reserved (the inner diameter of the concrete pipe is too large) in the concrete prefabricated pipeline, so that the plastic lining pipe is just not easy to joint. In this case, if the outer pipe is damaged and enters the ground water, it will remain in the interlayer, and the inner liner may collapse inwardly as the ground water level increases, eventually causing clogging. Sometimes, this problem occurs if the pressure pipe liner is lined with interlayer water. Therefore, the technology of grouting into the space is carried out at the same time, but if the cement slurry flows out basically under the condition that the space of the pipe section is too small or no space exists, the potential safety hazard is brought to the plastic lining pipe. Therefore, how to make up the annular space generated after the lining of the plastic lining pipe becomes the technical problem to be solved by the industry.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bushing pipe in grid aims at solving the above-mentioned current bushing pipe and inwards sinks easily and cause the problem of jam or even damage.

In order to achieve the above object, the utility model provides a following technical scheme:

a grid lined pipe comprising:

original pipeline;

the lining pipe is arranged in the original pipeline;

a plurality of grids, wherein the grids are fixed on the circumferential surface of the lining pipe and are uniformly distributed;

the filling material is filled between the original pipeline and the lining pipe; and

and the two groups of filling mechanisms are connected with the original pipeline so as to fill the filler between the original pipeline and the lining pipe.

As an optimized scheme of the utility model, every group the filling mechanism all includes:

the fixed sleeve is sleeved on one side of the circumferential surface of the original pipeline;

the material passing hole is formed in the circumferential surface of the fixed sleeve;

the conical surface of the outer taper sleeve is embedded into the inner lining pipe;

the blind plate is arranged on the outer taper sleeve;

and the air passing hole is formed in one side end of the blind plate.

As an optimized proposal of the utility model, the lining pipe is internally provided with a through ball.

As an optimized proposal of the utility model, the outer taper sleeve and the fixed sleeve are fixed by a plurality of bolts.

As a preferred embodiment of the present invention, the lining pipe is integrally formed with the plurality of grids.

As an optimized scheme of the utility model, it is a plurality of the shape of grid is one of "falling L" shape, "V" font, "T" font, "individual" font, "F" font, "Y" font, "bo" font or "drawing pin" shape, and is a plurality of two bisymmetry distributions of grid.

Compared with the prior art, the beneficial effects of the utility model are that:

the lining pipe in the scheme is applied to the lining of a newly-built pipeline or an old pipeline, and is particularly used for repairing the lining of a damaged concrete prefabricated pipeline; after being installed, the grids on the lining pipe generate certain distance space with the original pipeline, so that filler can be uniformly poured into each interlayer space between the original pipeline and the lining pipe along the grids, damage caused by repeated pressure of the lining pipe from inside and outside is reduced, the service life of the lining pipe is prolonged, and obvious economic and social benefits are achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of the present invention;

FIG. 2 is a partial perspective view of the central processing unit of the present invention;

FIG. 3 is a partial perspective view of the grid of the present invention;

fig. 4 is a cut-away perspective view of the present invention.

In the figure: 1. original pipeline; 2. a grid; 3. a filler; 4. a liner tube; 5. fixing a sleeve; 6. a material passing hole; 7. an outer taper sleeve; 8. a bolt; 9. air passing holes; 10. a blind plate; 11. and (6) passing through the ball.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions:

a grid lined pipe comprising:

an original pipeline 1;

the lining pipe 4 is arranged in the original pipeline 1;

the grid 2 is provided with a plurality of grids 2, the grids 2 are all fixed on the circumferential surface of the lining pipe 4, the grids 2 are uniformly distributed, and the lining pipe 4 and the grids 2 are integrally formed, so that the lining pipe 4 and the grids 2 are connected more stably and firmly;

the filler 3 is filled between the original pipeline 1 and the lining pipe 4; and

and two groups of filling mechanisms are arranged, and the two groups of filling mechanisms are connected with the original pipeline 1 so as to fill the filler 3 between the original pipeline 1 and the lining pipe 4.

In the embodiment of the present invention, the inner surface of the lining tube 4 is smooth, the outer part is integrally formed with a plurality of grids 2, the grids 2 in the device are inverted L-shaped, the shape of the grids 2 can be selected according to actual requirements, one of inverted L-shaped, V-shaped, T-shaped, square, F-shaped, Y-shaped, halberd-shaped or drawing pin-shaped, and the grids 2 are symmetrically distributed in pairs, when the lining of the lining tube 4 is in the original tube 1, the top edge of the grid 2 is attached to the inner wall of the tube 1, the grids 2 are uniformly distributed to form a gap with the inner surface of the original tube 1, at this time, the filler 3 is injected into the gap, the filler 3 can enter each interlayer space formed by the inner wall of the original tube 1 and the outer surface of the grid 2 along the gap formed by the grids 2, the filler 3 can flow in the space and spread all over the whole space along the space of the grids 2, after the filling material 3 solidifies, because the grid 2 is in the anchoring effect formed in the filling material 3, even if the internal pressure is lost, the lining pipe 4 can not collapse, and in the same way, the lining pipe 4 can not be collapsed when water enters the damaged part of the original pipeline 1, the damage caused by the internal and external repeated pressure of the lining pipe 4 is reduced, the service life of the lining pipe 4 is prolonged, and the filling machine has obvious economic and social benefits, and can assist in filling the filling material 3 through two groups of filling mechanisms, so that the filling material 3 is more convenient to fill, the two groups of filling mechanisms are distributed on two sides of the original pipeline 1, are the same in structure and different in effect, one side is used for injecting the filling material, and the other side is used for blocking and discharging the material.

Referring specifically to fig. 4, each set of filling mechanisms includes:

the fixed sleeve 5 is sleeved on one side of the circumferential surface of the original pipeline 1;

the material passing hole 6 is formed in the circumferential surface of the fixed sleeve 5;

the conical surface of the outer taper sleeve 7 is embedded into the inner lining pipe 4;

the blind plate 10 is arranged on the outer taper sleeve 7;

the air passing hole 9 is opened at one side end of the blind plate 10.

Specifically referring to fig. 4, a through ball 11 is disposed in the lining tube 4, and the material of the through ball 11 is soft material such as sponge and rubber.

In this embodiment: firstly, mounting two fixing sleeves 5 at two ends of an original pipeline 1 respectively, exposing two end parts of a lining pipe 4 to the pipe orifice of the original pipeline 1 by about 10 cm, and cleaning exposed grids 2; the inner surface of the fixed sleeve 5 has an inner circle with a taper, then the outer taper part of the outer taper sleeve 7 is inserted into the inner liner tube 4, then the fixed sleeve 5 and the outer taper sleeve 7 are fixed by a plurality of bolts 8, the two groups of filling mechanisms operate the same, the fixed sleeve 5 and the outer taper sleeve 7 are respectively arranged at the two ends of the original pipeline 1, the outer taper part surfaces of the two outer taper sleeves 7 are respectively attached with the inner taper surfaces of the two fixed sleeves 5, the inner liner pipe 4 is wedged by the force generated by the inner and outer taper surfaces to form a sealing function, an annular space is generated on the inner conical surface and the outer conical surface, the two material passing holes 6 are respectively communicated with the two annular spaces, the material passing hole 6 on one side is used for communicating the material injection pipe, the filling material discharging device is used for injecting filling material 3 into the grid 2, the filling material 3 enters the annular space through the material injecting pipe and then flows into the grid 2, and the material passing hole 6 on the other side is used for being connected with the material discharging pipe and used for discharging gas and redundant overflowing filling material 3; at the moment, the through ball 11 is placed in the inner lining pipe 4, then the blind plates 10 are installed on the two outer taper sleeves 7, the air passing holes 9 on the two blind plates 10 are respectively used for connecting the air inlet pipe and the air outlet pipe, the air inlet pipe is connected through the air passing hole 9 on one side, then the through ball 11 is pushed by compressed air to extrude the inner surface of the inner lining pipe 4, so that the filling material 3 in the interlayer is uniformly distributed to the tail end of the original pipeline 1, the air passing hole 9 on the other side is connected with the air outlet pipe to exhaust gas, and then the air pressure is maintained until the filling material 3 meets the strength requirement; as the filling material 3 plays a medium role between the grid grids 2 of the lining pipe 4 and the pipe wall of the original pipeline 1, the ring rigidity of the lining pipe 4 is further enhanced, so that the lining pipe can resist the collapse accident caused by enough surface water entering the interlayer to the lining pipe 4, the inverted L-shaped short edge of the grid 2 is buried in the filling material 3 to play an anchoring role, and the lining quality of the lining pipe 4 is further ensured.

Referring specifically to fig. 1, the outer taper sleeve 7 and the fixed sleeve 5 are fixed by a plurality of bolts 8.

Preferably, the grids 2 are in one of an inverted L shape, a V shape, a T shape, a plurality of shapes, an F shape, a Y shape, a halberd shape or a drawing pin shape, and the grids 2 are symmetrically arranged in pairs.

The utility model discloses a theory of operation and use flow: when the lining pipe 4 is used, when the lining pipe 4 is lined in the original pipeline 1, the top edge of the grid 2 is attached to the inner wall of the pipeline in the original pipeline 1, the grid 2 is uniformly distributed to form a gap with the inner surface of the original pipeline 1, the filling material 3 is injected into the gap, the filling material 3 can enter each interlayer space formed by the inner wall of the original pipeline 1 and the outer surface of the grid 2 along the gap formed by the grid 2, the filling material 3 can flow in the space and spread to the whole space along the space of the grid 2, after the filling material 3 is solidified, the grid 2 forms an anchoring effect in the filling material 3, even if the internal pressure of the lining pipe 4 is lost, the lining pipe 4 cannot be collapsed, and similarly, when water enters the damaged position of the original pipeline 1, the lining pipe 4 cannot be collapsed, the damage caused by the repeated pressure of the lining pipe 4 from the inside and the outside is reduced, the service life of the lining pipe 4 is prolonged, and the lining pipe has obvious economic benefits, Social benefits.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grid lined pipe, comprising: a primary pipe (1); the lining pipe (4) is arranged in the original pipeline (1); a plurality of grids (2), wherein the grids (2) are fixed on the circumferential surface of the lining pipe (4), and the grids (2) are uniformly distributed; the filling material (3) is filled between the original pipeline (1) and the lining pipe (4); and two groups of filling mechanisms are arranged, and are connected with the original pipeline (1) so as to fill the filler (3) between the original pipeline (1) and the lining pipe (4).

2. A grid lined pipe as defined in claim 1, wherein: each group the filling mechanism all includes: the fixed sleeve (5) is sleeved on one side of the circumferential surface of the original pipeline (1); the material passing hole (6) is formed in the circumferential surface of the fixed sleeve (5); an outer taper sleeve (7) with a taper surface embedded in the inner lining pipe (4); the blind plate (10) is arranged on the outer taper sleeve (7); and the air passing hole (9) is formed in one side end of the blind plate (10).

3. A grid lined pipe as defined in claim 2, wherein: a through ball (11) is arranged in the lining pipe (4).

4. A grid lined pipe as defined in claim 3, wherein: the outer taper sleeve (7) and the fixed sleeve (5) are fixed through a plurality of bolts (8).

5. A grid lined pipe of claim 4, wherein: the lining pipe (4) is integrally formed with the plurality of grids (2).

6. A grid lined pipe of claim 5, wherein: the grids (2) are in the shape of one of inverted L, V, T, S, F, Y, Bu or thumbtack, and the grids (2) are symmetrically distributed in pairs.