CN215948410U

CN215948410U - Special concave lining prefabricated pipe for cement drain pipe anti-leakage repair

Info

Publication number: CN215948410U
Application number: CN202121245238.2U
Authority: CN
Inventors: 王国兵
Original assignee: Hubei Jinfei Plastic Industry Co ltd
Current assignee: Hubei Jinfei Plastic Industry Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-03-04
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to a concave lining prefabricated pipe special for anti-leakage repair of a cement drain pipe, and belongs to the technical field of lining prefabricated PE pipes of underground cement drain pipes. The device comprises a concave PE pipe, a traction head and a strapping tape, wherein two ends of the concave PE pipe are open, one end of the concave PE pipe is provided with a connecting hole a, and the surface of the concave PE pipe is spirally wound with the strapping tape; the drawing head is in a conical shape, the large-diameter end of the drawing head is consistent with the cross section of the concave PE pipe in shape, a connecting hole b is formed in the large-diameter end of the drawing head, and the concave PE pipe and the drawing head are fixedly connected into a whole through the connecting hole a, the connecting hole b and the bolt.

Description

Special concave lining prefabricated pipe for cement drain pipe anti-leakage repair

Technical Field

The utility model relates to a special concave lining prefabricated pipe for anti-leakage repair of a cement drain pipe, which is formed by pressing a PE pipe into a concave shape from a circle, and belongs to the technical field of lining prefabricated PE pipes in underground cement drain pipes.

Background

The underground cement drain pipe for urban drainage and pollution discharge is usually a cement pipe, and along with the increase of service years, under the action of interference factors such as corrosion of underground water in the pipeline, pipeline running load, geographical settlement, underground engineering and the like, the cement pipe can be cracked or damaged and leaked, so that the conveying function of the cement drain pipe is lost, and the leaked water can cause soil loss to cause road surface collapse. At present, the common maintenance method for the damaged cement drain pipe is to spray repair glue or weld leakage points, so that the cement drain pipe with longer service life can only be maintained for a short time, and the problem of damaged leakage cannot be thoroughly solved.

In order to solve the problems, a new method is provided for maintaining the cement drain pipe in the prior art, namely a PE pipe with certain plasticity is lined in the cement drain pipe, so that the service life of the cement drain pipe is prolonged, and meanwhile, the corrosion resistance of the cement drain pipe is enhanced; but because cement drain pipe inner wall unevenness and the cement drain pipe distance between two wellheads is longer, the degree of difficulty is great when drawing the entering cement drain pipe for circular PE pipe, and PE pipe is stopped up when PE pipe often can appear getting into cement drain pipe half or two-thirds the position, can't continue to pull, leads to the engineering can't continue to go on, only must take the method of digging underground cement drain pipe, not only wastes time and energy, can greatly increased engineering cost moreover. Therefore, when the method is adopted, the diameter of the lining PE pipe is made to be much smaller than the inner diameter of the cement drain pipe, so that a large gap is reserved between the outer surface of the lining pipe and the inner wall of the cement drain pipe, the gap is not less than 20 cm generally, and thus, although the difficulty of pulling the lining pipe into the cement drain pipe is solved, the PE pipe can be deformed in an arc shape with a low middle and two high ends under the conditions of dead weight, sewage in the pipe and collapse due to the fact that the PE pipe has certain flexibility, the PE pipe can be deformed in an arc shape with two low ends and two high ends, the PE pipe orifices at two ends are deviated to the middle, and the problem of pipeline leakage can not be thoroughly solved due to the fact that sewage flows between the outer surface of the lining pipe and the inner wall of the cement drain pipe due to the fact that the PE pipe orifices and the cement drain pipe orifices are cracked; meanwhile, the sewage is retained in the middle of the lining PE pipe, which also causes the lining pipe to fail to work normally, and therefore, it is necessary to improve the sewage.

Disclosure of Invention

The utility model aims to: the special concave lining prefabricated pipe for repairing the cement drain pipe by preventing the seepage of the cement drain pipe is convenient to install and construct, and the difficulty of underground construction operation is effectively reduced.

The utility model realizes the purpose through the following technical scheme:

the utility model provides a prefabricated pipe of special spill inside lining is restoreed to cement drain pipe antiseep, it comprises spill PE pipe, traction head and strapping, its characterized in that: the two ends of the concave PE pipe are in an open shape, a connecting hole a is formed in the opening at one end, and a strapping tape is spirally wound on the surface of the concave PE pipe; the traction head is in a conical shape, the large-diameter end of the traction head is an open end, the small-diameter end of the traction head is a closed end, the large-diameter end of the traction head is consistent with the cross section of the concave PE pipe in shape, a connecting hole b is formed in the large-diameter end of the traction head, the small-diameter end of the traction head is a pointed end, and a traction hole is formed in the pointed end; the concave PE pipe and the traction head are fixedly connected into a whole through the connecting hole a, the connecting hole b and the bolt.

The port department of the big footpath end of traction head make one section level spill structure, connecting hole b makes on level spill structure, level spill structure is than the mouth of pipe of spill PE pipe big 2-5 mm, the traction head passes through level spill structure suit on the end surface of spill PE pipe.

The utility model has the advantages that:

this special spill inside lining of cement drain pipe antiseep restoration is prefabricated manages its cross-section and is "concave" shape, and the diameter reduces the third after the prefabricated compression of PE pipe, makes the diameter ratio cement drain pipe internal diameter of PE pipe a lot less, through the traction head of PE pipe one end installation, can be very convenient pull the prefabricated pipe of PE and get into and pass the cement drain pipe, and easy operation is convenient, has effectively reduced the underground construction operation degree of difficulty to the inconvenient problem of circular PE pipe transportation has been solved. After the lining prefabricated pipe is installed by penetrating into a cement drain pipe, the PE pipe can be quickly restored by inflating or injecting water, the lining PE pipe is attached to the inner wall of the underground cement drainage pipe, the problems that the inner wall of the cement drainage pipe is uneven, the distance between two wellheads of the cement drainage pipe is long, the difficulty of a round PE pipe in pulling the round PE pipe into the cement drainage pipe is high, the PE pipe is blocked when the PE pipe enters half or two thirds of the cement drainage pipe, the pulling cannot be continued, the engineering cannot be carried out, the diameter of the lining PE pipe is reduced, a large gap is reserved between the outer surface of the lining pipe and the inner wall of the cement drainage pipe, and the PE lining pipe is influenced by the self weight and the sewage in the pipe, because the PE pipe has certain flexibility, the PE pipe can form the arc deformation with low two high ends in the middle, so that the opening of the PE pipe and the opening of the cement drain pipe crack to cause sewage to flow into the space between the liner pipe and the cement drain pipe, and the problem of pipeline leakage cannot be thoroughly solved.

Drawings

FIG. 1 is a schematic structural view of a concave lining prefabricated pipe special for leak-proof repair of a cement drain pipe;

FIG. 2 is a schematic structural view of a PE pipe pressed into a concave shape;

fig. 3 is a schematic structural view of the traction head.

In the figure: 1. concave PE pipe, 101, connecting holes a and 2, a traction head, 201, a traction hole, 202, connecting holes b and 3, a bolt, 4 and a strapping tape.

Detailed Description

The special concave lining prefabricated pipe for the anti-leakage repair of the cement drain pipe comprises a concave PE pipe 1, a traction head 2 and a strapping tape 4, wherein two ends of the concave PE pipe 1 are in an open shape, a connecting hole a101 is formed in the opening at one end of the concave PE pipe, the strapping tape 4 is spirally wound on the surface of the concave PE pipe 1, and the strapping tape 4 is an industrial adhesive tape, a metal strapping wire or other industrial strapping tapes; the drawing head 2 is in a conical shape, the large-diameter end of the drawing head 2 is an opening end, the large-diameter end of the drawing head 2 is consistent with the cross section of the concave PE pipe 1 in shape, a section of horizontal concave structure is manufactured at the port of the large-diameter end of the drawing head 2, the connecting hole b202 is manufactured on the horizontal concave structure, the horizontal concave structure is larger than the pipe opening of the concave PE pipe 1 by 4 mm, the drawing head 2 is sleeved on the outer surface of the end of the concave PE pipe 1 through the horizontal concave structure, the end of the concave PE pipe 1 is wrapped in the large-diameter end of the drawing head 2, and the concave PE pipe 1 can be conveniently dragged in the underground cement drainage pipe; the small-diameter end of the traction head 2 is a closed end to prevent sewage in the underground cement drainage pipe from entering the concave PE pipe 1, the small-diameter end of the traction head 2 is a pointed end, traction holes 201 are formed in the pointed end, and the traction holes 201 are symmetrically arranged on two sides of the small-diameter end of the traction head 2 and are convenient to connect with a traction rope of a winch; the concave PE pipe 1 and the traction head 2 are fixedly connected into a whole through a connecting hole a101, a connecting hole b202 and a bolt 3.

Before the special concave lining prefabricated pipe for anti-seepage repair of the cement drainage pipe is used, the large-diameter end of a traction head 2 is sleeved on the outer surface of one end of a first concave PE pipe 1 and locked by a bolt 3, the other end of the traction head is connected with a second concave PE pipe 1, and the concave PE pipes 1 are sequentially connected according to the length of an underground cement drainage pipe to be repaired to form a complete prefabricated lining PE pipe; after the completion of the above-mentioned work, put into the one end of the underground cement drain pipe that will maintain with the traction head 2 of prefabricated inside lining PE pipe, the wire rope that passes through the hoist engine from the other end of underground cement drain pipe and the draw hole 201 that the path of traction head 2 was served, can be very convenient penetrate underground cement drain pipe with prefabricated inside lining PE pipe of whole piece, effectively reduced the degree of difficulty of underground construction operation, and operation simple to use is convenient.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a prefabricated pipe of special spill inside lining is restoreed to cement drain pipe antiseep, it comprises spill PE pipe (1), traction head (2) and strapping (4), its characterized in that: two ends of the concave PE pipe (1) are open, a connecting hole a (101) is formed in the opening at one end, and a strapping tape (4) is spirally wound on the surface of the concave PE pipe (1); the drawing head (2) is in a conical shape, the large-diameter end of the drawing head (2) is an open end, the small-diameter end of the drawing head (2) is a closed end, the large-diameter end of the drawing head (2) is consistent with the cross section of the concave PE pipe (1) in shape, a connecting hole b (202) is formed in the large-diameter end, the small-diameter end of the drawing head (2) is a pointed end, and a drawing hole (201) is formed in the pointed end; the concave PE pipe (1) and the traction head (2) are fixedly connected into a whole through the connecting hole a (101), the connecting hole b (202) and the bolt (3).

2. The special concave lining prefabricated pipe for leak-proof repair of cement drain pipes as claimed in claim 1, wherein: the port department of the big footpath end of traction head (2) make one section level concave structure, connecting hole b (202) are made on level concave structure, level concave structure is than the mouth of pipe of spill PE pipe (1) big 2-5 mm, traction head (2) through level concave structure suit on the end surface of spill PE pipe (1).