CN113819336A - Non-excavation repair process for rain sewage pipeline - Google Patents

Non-excavation repair process for rain sewage pipeline Download PDF

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Publication number
CN113819336A
CN113819336A CN202111114832.2A CN202111114832A CN113819336A CN 113819336 A CN113819336 A CN 113819336A CN 202111114832 A CN202111114832 A CN 202111114832A CN 113819336 A CN113819336 A CN 113819336A
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China
Prior art keywords
hose
drainage well
water
nut
well body
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Granted
Application number
CN202111114832.2A
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Chinese (zh)
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CN113819336B (en
Inventor
胡占法
薛小庆
丁德荣
王伟
徐正林
薛前景
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Jiangsu Yunduanqi Construction Engineering Co ltd
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Jiangsu Yunduanqi Construction Engineering Co ltd
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Priority to CN202111114832.2A priority Critical patent/CN113819336B/en
Publication of CN113819336A publication Critical patent/CN113819336A/en
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Publication of CN113819336B publication Critical patent/CN113819336B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1657—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section lengths of rigid pipe being inserted
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/06—Sealing by means of a swivel nut compressing a ring or sleeve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/10—Sealing by using sealing rings or sleeves only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/115—Caps
    • F16L55/1152—Caps fixed by screwing or by means of a screw-threaded ring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to the field of municipal drainage, in particular to a non-excavation repair process for a rainwater and sewage pipeline, which comprises the following steps: s1: preparing a hose, and selecting the length of the hose according to the distance between two adjacent drainage well bodies; s2: inserting the hose into a water leakage pipeline between adjacent drainage well bodies; s3: positioning the hose end on the drainage well body. This application need not dig the road surface, can not destroy road surface structure and road surface sanitation, helps environmental protection, and the repair process is quick, and the restoration time limit for a project is short, and repair efficiency is high.

Description

Non-excavation repair process for rain sewage pipeline
Technical Field
The invention relates to the field of municipal drainage, in particular to a non-excavation repair process for a rainwater and sewage pipeline.
Background
Along with the rapid development of economy in China, the urban construction scale is larger and larger, people pay more and more attention to environmental sanitation, and therefore the effect of a drainage system of a municipal road is particularly paid more and more attention.
Along with the increase of drainage system live time, the pipeline that is located between the adjacent drainage well body is ageing, often appears the pipeline phenomenon of leaking, and the drainage of unable fine realization road surface water need be restoreed to the drainage pipeline in order to the drainage is normal.
When repairing a water leakage pipeline, the road surface position where the water leakage pipeline is located is usually excavated, the water leakage pipeline is exposed, then the water leakage pipeline is removed, and the whole pipeline between adjacent drainage well bodies is replaced.
Although the method can repair the leaked pipeline, the pavement needs to be dug in the repair process, which affects the environmental sanitation of the pavement and is not beneficial to environmental protection.
Disclosure of Invention
In order not to influence road surface sanitation, environmental protection, the application provides a rain sewage pipeline non-excavation repair technology.
The application provides a rain sewage pipeline non-excavation restoration technology adopts following technical scheme:
a rain sewage pipeline trenchless repairing process comprises the following steps:
s1: preparing a hose, and selecting the length of the hose according to the distance between two adjacent drainage well bodies;
s2: inserting the hose into a water leakage pipeline between adjacent drainage well bodies;
s3: positioning the hose end on the drainage well body.
Through adopting above-mentioned technical scheme, when restoreing leaking water piping, through the drainage well body that links to each other with leaking water piping one end with the hose insert leaking water piping in, then with the both ends and the drainage well body coupling of hose, thereby realize the purpose of restoreing the pipeline, when the drainage, the internal water of drainage well circulates through the hose, the smooth emission of the water of realization, and in leaking water piping's whole repair process, need not dig the road surface, can not destroy road surface structure and road surface sanitation, help environmental protection, and the repair process is quick, the restoration time limit for a project is short, the repair efficiency is high.
Optionally, in S2, after the flexible pipe is inserted into the water leakage pipeline, connecting both ends of the flexible pipe with an external thread pipe so that the external thread pipe is positioned in the drainage well;
at S3, a nut is screwed onto the male threaded pipe so that the nut is tightened against the drain well body.
Through adopting above-mentioned technical scheme, at the repair pipeline in-process, put into the back with the hose in the water leakage pipeline, make the external screw thread pipe at hose both ends be located the well body that drains, again with nut threaded connection on the external screw thread pipe at hose both ends, and make the nut support tight well body lateral wall that drains to accomplish the installation of hose, fix a position hose tip.
Optionally, the external thread pipe is connected on the hose inner wall seal ring is established to the cover on the external thread pipe, makes seal ring is located drainage shaft body lateral wall with between the nut, one side of seal ring is tightly supported drainage shaft body lateral wall, and the opposite side is tightly supported the nut.
By adopting the technical scheme, the external thread pipe is arranged on the inner wall of the hose, so that the water leakage pipeline can be better attached to the side wall of the hose, and drainage is facilitated; seal ring sets up between nut and drainage well body lateral wall, can play sealed effect, if water in the hose oozes between hose inner wall and the external screw thread pipe outer wall, seal ring can play sealed effect, carries out the shutoff to the water that oozes.
Optionally, the external thread pipe runs through the nut, the external thread pipe runs through one end of the nut is detachably connected with a water plugging cover.
By adopting the technical scheme, when the pipeline adjacent to the hose needs to be repaired, the water plugging cover can be installed on the external threaded pipe to plug the end part of the hose, so that the problem that water flows in the hose when the pipeline adjacent to the hose is repaired, inconvenience is brought to pipeline maintenance, and after the pipeline adjacent to the hose is repaired, the water plugging cover is detached from the external threaded pipe, so that the water flows continuously, and smooth drainage is realized.
Optionally, the water shutoff cover is in threaded connection with the external thread pipe.
Through adopting above-mentioned technical scheme, water shutoff lid and external screw thread pipe threaded connection can realize the quick installation and the dismantlement of water shutoff lid, help improving staff's work efficiency.
Optionally, when the external threaded pipe and the hose are connected, the external threaded pipe is connected in the hose, the hose and the water leakage pipeline are fixed through glue, when the water blocking cover is connected on the external threaded pipe, the water blocking cover is in threaded connection with the external threaded pipe through a screwing device, and the screwing device comprises a driving device, a screwing mechanism and a guide assembly;
the driving device comprises a motor, a lead screw, a nut block, a guide rod and a driving ring, the motor is arranged on the drainage well body, the lead screw is rotationally connected in the drainage well body and is linked with the motor, the guide rod is connected in the drainage well body, the nut block is in threaded connection with the lead screw, the guide rod penetrates through the nut block, the nut block is in sliding fit with the guide rod, and the driving ring is arranged on the nut block;
the guide assembly comprises a guide cylinder and a fixed rod, the guide cylinder is arranged on the water plugging cover, the fixed rod is arranged in the drainage well body, the guide cylinder is sleeved on the fixed rod and is in sliding fit with the fixed rod, the central line of the external threaded pipe, the central line of the water plugging cover and the central line of the guide cylinder are superposed, the guide cylinder penetrates through the drive ring, and the drive ring is abutted against the water plugging cover;
the tightening mechanism comprises a tightening rod, a tightening block and a tightening piece, the tightening rod is arranged to be two, the middle of the tightening rod is hinged to the tightening rod, the tightening block is connected to one end of the tightening rod, the tightening piece is provided with a plurality of ring-shaped arrays, and the tightening piece is arranged on the water plugging cover.
By adopting the technical scheme, when the water plugging cover needs to be screwed on the external threaded pipe, the motor is started, the motor drives the screw rod to rotate, the screw rod drives the nut block and the driving ring to move in the rotating process, the driving ring abuts against the water plugging cover and drives the water plugging cover to move in the moving process, the water plugging cover is moved to the end part of the external threaded pipe, a worker operates the screwing mechanism on the ground to enable the screwing blocks to be clamped on two sides of the screwing pieces, the screwing rod is rotated forcibly, the screwing rod drives the screwing pieces and the water plugging cover to rotate through the screwing blocks, when the screwing rod abuts against the edge of the drainage well body and cannot rotate, the screwing blocks are clamped on two sides of other screwing pieces, the screwing rod continues to rotate until the water plugging cover is connected on the external threaded pipe, the worker does not need to enter the drainage well body personally in the whole process, and the working environment of the worker is improved; in the whole process that the water plugging cover is connected to the external threaded pipe in a threaded mode, the guide cylinder is always sleeved on the fixing rod, convenience is brought to the disassembly of the water plugging cover, the problem that the water plugging cover directly falls to the bottom of a drainage well body in the process of disassembling the water plugging cover is solved, and inconvenience is brought to next use.
Optionally, an annular magnet is arranged on the fixing rod, the guide cylinder is an iron cylinder, and the guide cylinder is adsorbed by the annular magnet.
Through adopting above-mentioned technical scheme, annular magnet's setting can adsorb the guide cylinder, has improved the stability between guide cylinder and the guide bar, and then improves the stability of water shutoff lid when not using, and when needs use, the driving ring is to water shutoff lid application of force, makes water shutoff lid and guide cylinder remove, and annular magnet and guide cylinder separation this moment to the removal that guide cylinder and water shutoff lid can be smooth.
Optionally, the tightening block is an iron block, magnet plates are arranged on two sides of the tightening piece, and the tightening block is adsorbed by the magnet plates when the water plugging cover is installed.
Through adopting above-mentioned technical scheme, rotating the in-process of screwing up the piece through screwing up the pole and screwing up the piece, screwing up the piece and being adsorbed by the magnet board, can be in the same place screwing up the inseparable connection of piece with screwing up, it brings the convenience to screw up the mechanism for staff's operation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the water leakage pipeline is repaired, the hose is inserted into the water leakage pipeline through the drainage well body connected with one end of the water leakage pipeline, and then the two ends of the hose are connected with the drainage well body, so that the aim of repairing the pipeline is fulfilled;
2. in the process of repairing the pipeline, after the hose is placed into the water leakage pipeline, the external threaded pipes at the two ends of the hose are positioned in the drainage well body, then the nuts are in threaded connection with the external threaded pipes at the two ends of the hose, and the nuts are abutted against the side wall of the drainage well body, so that the installation of the hose is completed, and the end part of the hose is positioned;
3. when the pipeline adjacent to the hose needs to be repaired, the water plugging cover can be installed on the external threaded pipe to plug the end part of the hose, so that the problem that water flows in the hose when the pipeline adjacent to the hose is repaired, inconvenience is brought to pipeline maintenance, and after the pipeline adjacent to the hose is repaired, the water plugging cover is detached from the external threaded pipe, so that the water flows continuously, and smooth drainage is realized.
Drawings
FIG. 1 is a schematic view showing a positional relationship between an external threaded pipe and a well body in example 1.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is an enlarged view of a portion a of fig. 2 for showing a positional relationship between the male screw pipe and the hose.
Fig. 4 is a schematic structural view for showing a connection relationship between the water shutoff cover and the external threaded pipe in embodiment 1.
Fig. 5 is a schematic structural view for showing a positional relationship between the guide assembly and the water blocking cover in embodiment 2.
Fig. 6 is a schematic structural diagram for showing a positional relationship between the motor and the enclosure in embodiment 2.
Fig. 7 is a schematic structural view for embodying the tightening mechanism in embodiment 2.
Description of reference numerals:
1. a hose; 2. a drainage well body; 3. a water leakage pipeline; 4. an externally threaded tube; 5. a sealing gasket; 6. a nut; 7. a water plugging cover; 8. a motor; 9. a lead screw; 10. a nut block; 11. a guide bar; 12. a drive ring; 13. a machine base; 14. fencing; 15. mounting a plate; 16. a first bevel gear; 17. a second bevel gear; 18. a support; 19. a drive shaft; 20. a guide cylinder; 21. fixing the rod; 22. a ring magnet; 23. screwing the rod; 24. screwing the block; 25. tightening the sheet; 26. a magnet plate; 27. a connecting rod.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, the trenchless repairing process for the rain sewage pipeline comprises the following steps:
s1: preparing a hose 1, and selecting the length of the hose 1 according to the distance between two adjacent drainage well bodies 2;
s2: inserting a hose 1 into a water leakage pipeline 3 between adjacent drainage well bodies 2, connecting two ends of the hose 1 with external threaded pipes 4 after the hose 1 is inserted into the water leakage pipeline 3, wherein the outer surfaces of the external threaded pipes 4 are arranged in a step shape, the part of the external threaded pipes 4 with smaller outer diameters is inserted into the hose 1 and is fixedly connected with the inner wall of the hose 1 through glue, threads on the external threaded pipes 4 are arranged on the part of the external threaded pipes 4 with larger outer diameters, so that the external threaded pipes 4 at two ends of the hose 1 are positioned in the drainage well bodies 2, and sealing washers 5 made of rubber are sleeved on the external threaded pipes 4;
s3: with hose 1 tip location on the drainage well body 2, specifically, threaded connection nut 6 on external thread pipe 4 makes seal ring 5 be located between drainage well body 2 lateral wall and nut 6, makes nut 6 tightly support drainage well body 2 through seal ring 5, and one side of seal ring 5 tightly supports drainage well body 2 lateral wall, and the opposite side tightly supports nut 6.
Referring to fig. 4, the male screw tube 4 penetrates the nut 6, and one end of the male screw tube 4 penetrating the nut 6 is detachably connected with a water blocking cap 7 by screw.
The implementation principle of the embodiment 1 is as follows: when the water leakage pipeline 3 is repaired, the hose 1 is firstly inserted into the water leakage pipeline 3, in the embodiment, the hose 1 is made of a rubber hose, the outer threaded pipes 4 are connected to two ends of the hose 1, the outer threaded pipes 4 at the two ends of the hose 1 are positioned in the drainage well body 2, the sealing washer 5 is sleeved on the outer threaded pipes 4, then the nuts 6 are in threaded connection with the outer threaded pipes 4, one sides of the sealing washers 5 are abutted against the side wall of the drainage well body 2, and the other sides of the sealing washers are abutted against the nuts 6, so that the hose 1 is fixed, the water leakage pipeline 3 is repaired, and in the whole repairing process of the water leakage pipeline 3, the road surface does not need to be dug, the road surface structure and the road surface environmental sanitation cannot be damaged, the environmental protection is facilitated, the repairing process is quick, the repairing period is short, and the repairing efficiency is high.
Because the outer threaded pipe 4 is in threaded connection with the water plugging cover 7, the water plugging cover 7 does not need to be installed on the outer threaded pipe 4 during normal drainage, so that smooth flow of water flow is realized.
When other pipelines adjacent to the hose 1 need to be repaired, the water plugging cover 7 can be installed on the external threaded pipe 4 to plug the end part of the hose 1, so that water flow is prevented from flowing into the pipeline adjacent to the hose 1 and needing to be repaired through the hose 1, and inconvenience is brought to the pipeline repairing work.
Example 2
Referring to fig. 5, the difference from embodiment 1 is that after the male screw pipe 4 is connected in the hose 1, the outer side wall of the end portion of the hose 1 is fixedly connected with the inner side wall of the leakage water pipe 3 by glue to position the hose 1, thereby further fixing the position of the male screw pipe 4, and the water blocking cap 7 is screwed with the male screw pipe 4 by a screwing means including a driving means, a screwing mechanism and a guide assembly when the water blocking cap 7 is connected to the male screw pipe 4.
Referring to fig. 5 and 6, the driving device includes a motor 8, a lead screw 9, a nut block 10, a guide rod 11 and a driving ring 12, the motor 8 is disposed on the drainage well body 2 through a base 13, the base 13 is disposed on one end of the inner side wall of the drainage well body 2 close to the well mouth of the drainage well body 2, the motor 8 is disposed on the base 13, a baffle 14 for shielding the motor 8 is connected to the base 13, a mounting plate 15 is further connected to the inner side wall of the drainage well body 2, the lead screw 9 is rotatably connected to the mounting plate 15 and is linked with the motor 8 through a transmission member, the transmission member includes a first bevel gear 16 and a second bevel gear 17, a bracket 18 is connected to the inner side wall of the drainage well body 2, a transmission shaft 19 is rotatably connected to the bracket 18, one end of the transmission shaft 19 is connected to the motor 8, the other end is connected to the first bevel gear 16, the second bevel gear 17 is disposed on the lead screw 9, the first bevel gear 16 is engaged with the second bevel gear 17, the guide rod 11 is connected to the mounting plate 15, the nut block 10 is in threaded connection with the lead screw 9, the guide rod 11 penetrates through the nut block 10, the nut block 10 is in sliding fit with the guide rod 11, the driving ring 12 is arranged on the nut block 10, and the driving ring 12 is connected with the nut block 10 through a connecting rod 27.
The motor 8 drives the transmission shaft 19 to rotate under the working state, the transmission shaft 19 drives the first bevel gear 16 to rotate during the rotation process, the first bevel gear 16 drives the second bevel gear 17 to rotate, thereby driving the lead screw 9 to rotate, and the lead screw 9 drives the nut block 10 and the driving ring 12 to move during the rotation process.
Referring to fig. 5 and 7, the guiding assembly comprises a guiding cylinder 20 and a fixing rod 21, the guiding cylinder 20 is arranged on the water blocking cover 7, the fixing rod 21 is arranged on the inner side wall of the drainage well body 2, the guiding cylinder 20 is sleeved on the fixing rod 21 and is in sliding fit with the fixing rod 21, an annular magnet 22 is connected to the fixing rod 21, the guiding cylinder 20 is an iron cylinder, the guiding cylinder 20 is adsorbed by the annular magnet 22, the central line of the external threaded pipe 4, the central line of the water blocking cover 7 and the central line of the guiding cylinder 20 are overlapped, and the guiding cylinder 20 penetrates through the driving ring 12.
Referring to fig. 7, the tightening mechanism includes tightening rod 23, tightening block 24 and tightening piece 25, tightening rod 23 sets up to two, the middle part of two tightening rods 23 is articulated, tightening block 24 is all connected to the one end of two tightening rods 23, tightening piece 25 is provided with a plurality of, a plurality of tightening piece 25 annular array sets up on water shutoff lid 7, tightening block 24 is the iron plate, tightening piece 25's both sides are connected with magnet plate 26, when installation water shutoff lid 7, tightening block 24 is adsorbed by magnet plate 26.
The implementation principle of the embodiment 2 is as follows: in the initial state, the water shutoff cover 7 is not connected to the external thread pipe 4, and the guide cylinder 20 is attracted by the ring magnet 22.
When the water plugging cover 7 needs to be screwed on the outer threaded pipe 4, the motor 8 is started, the driving ring 12 abuts against the water plugging cover 7 and drives the water plugging cover 7 to move in the moving process, the guide cylinder 20 moves along with the water plugging cover 7, the guide cylinder 20 is separated from the annular magnet 22, the water plugging cover 7 is moved to the end part of the outer threaded pipe 4, a worker operates the screwing rod 23 on the ground to enable the screwing blocks 24 to be clamped on two sides of the screwing piece 25, the screwing blocks 24 are adsorbed by the magnet plate 26, the screwing rod 23 is rotated by force, the screwing rod 23 drives the screwing piece 25 and the water plugging cover 7 to rotate through the screwing blocks 24, when the screwing rod 23 abuts against the edge of the drainage well body 2 and cannot rotate, the screwing blocks 24 are clamped on two sides of other screwing pieces 25, the screwing rod 23 continues to rotate until the water plugging cover 7 is screwed on the outer threaded pipe 4, and installation of the water plugging cover 7 is completed.
In the whole installation process of the water plugging cover 7, workers do not need to enter the drainage well body 2 in person, so that the working environment of the workers is improved; the personal safety of the working personnel is also ensured.
In the whole process of threaded connection between the water plugging cover 7 and the external threaded pipe 4, the guide cylinder 20 is always sleeved on the fixed rod 21 and is not separated from the fixed rod 21, and when the water plugging cover 7 rotates, the guide cylinder 20 also rotates along with the water plugging cover 7.
When the water plugging cover 7 needs to be detached from the external thread pipe 4, the motor 8 is started first, the motor 8 drives the driving ring 12 to move towards the direction away from the water plugging cover 7, the situation that the position of the driving ring 12 influences the detachment of the water plugging cover 7 is avoided, after the position of the driving ring 12 is moved, the worker continues to operate the tightening rod 23 on the ground to gradually unscrew the water blocking cap 7 from the external threaded pipe 4, in the process that the water plugging cover 7 is gradually separated from the external thread pipe 4, the water plugging cover 7 drives the guide cylinder 20 to move, the relative position between the guide cylinder 20 and the fixed rod 21 is changed, the distance between the guide cylinder 20 and the annular magnet 22 is smaller and smaller, when the water plugging cover 7 is separated from the external thread pipe 4, the tightening rod 23 is continuously operated and moved, the tightening rod 23 drives the water plugging cover 7 and the guide cylinder 20 to slide on the fixing rod 21, and the guide cylinder 20 is adsorbed by the annular magnet 22, so that the water plugging cover 7 is positioned.
In the whole process of detaching the water plugging cover 7, the guide cylinder 20 is sleeved on the fixed rod 21, so that the phenomenon that the water plugging cover 7 directly falls to the bottom of the drainage well body 2 is avoided, and the water plugging cover can be reused.

Claims (8)

1. The trenchless repairing process for the rain sewage pipeline is characterized by comprising the following steps of: the method comprises the following steps:
s1: preparing a hose (1), and selecting the length of the hose (1) according to the distance between two adjacent drainage well bodies (2);
s2: inserting the hose (1) into a water leakage pipeline (3) between adjacent drainage well bodies (2);
s3: -positioning the end of the hose (1) on the drainage well body (2).
2. The trenchless rehabilitation process for the storm sewer according to claim 1, wherein:
at S2, after the hose (1) is inserted into the leaking water pipe (3), connecting both ends of the hose (1) with an external threaded pipe (4) so that the external threaded pipe (4) is positioned in the drainage well body (2);
at S3, a nut (6) is screwed onto the external threaded pipe (4) and the nut (6) is tightened against the drain body (2).
3. The trenchless rehabilitation process for the storm sewer according to claim 2, wherein: outer threaded pipe (4) are connected on hose (1) inner wall seal ring (5) are established to the cover on outer threaded pipe (4), make seal ring (5) are located drainage well body (2) lateral wall with between nut (6), one side of seal ring (5) is tightly supported drainage well body (2) lateral wall, and the opposite side is tightly supported nut (6).
4. The trenchless rehabilitation process for the storm sewer according to claim 2, wherein: the external thread pipe (4) penetrates through the nut (6), and the external thread pipe (4) penetrates through one end of the nut (6) and is detachably connected with a water plugging cover (7).
5. The trenchless rehabilitation process for the storm sewer according to claim 4, wherein: the water plugging cover (7) is in threaded connection with the external threaded pipe (4).
6. The trenchless rehabilitation process for the storm sewer according to claim 5, wherein: when the external threaded pipe (4) is connected with the hose (1), the external threaded pipe (4) is connected into the hose (1), the hose (1) is fixed with the water leakage pipeline (3) through glue, when the water plugging cover (7) is connected onto the external threaded pipe (4), the water plugging cover (7) is in threaded connection with the external threaded pipe (4) through a tightening device, and the tightening device comprises a driving device, a tightening mechanism and a guide assembly;
the driving device comprises a motor (8), a lead screw (9), a nut block (10), a guide rod (11) and a driving ring (12), the motor (8) is arranged on the drainage well body (2), the lead screw (9) is rotationally connected in the drainage well body (2) and is linked with the motor (8), the guide rod (11) is connected in the drainage well body (2), the nut block (10) is in threaded connection with the lead screw (9), the guide rod (11) penetrates through the nut block (10), the nut block (10) is in sliding fit with the guide rod (11), and the driving ring (12) is arranged on the nut block (10);
the guide assembly comprises a guide cylinder (20) and a fixing rod (21), the guide cylinder (20) is arranged on the water plugging cover (7), the fixing rod (21) is arranged in the drainage well body (2), the guide cylinder (20) is sleeved on the fixing rod (21) and is in sliding fit with the fixing rod (21), the central line of the external threaded pipe (4), the central line of the water plugging cover (7) and the central line of the guide cylinder (20) are overlapped, and the guide cylinder (20) penetrates through the driving ring (12);
screw up the mechanism including screwing up pole (23), screw up piece (24) and screw up piece (25), screw up pole (23) and set up to two, two the middle part of screwing up pole (23) is articulated, two the one end of screwing up pole (23) is all connected screw up piece (24), it is provided with a plurality of, a plurality of to screw up piece (25) annular array sets up on stifled water cover (7).
7. The trenchless rehabilitation process for the storm sewer according to claim 6, wherein: the fixing rod (21) is provided with an annular magnet (22), the guide cylinder (20) is an iron cylinder, and the guide cylinder (20) is adsorbed by the annular magnet (22).
8. The trenchless rehabilitation process for the storm sewer according to claim 6, wherein: the tightening block (24) is an iron block, magnet plates (26) are arranged on two sides of the tightening piece (25), and the tightening block (24) is adsorbed by the magnet plates (26) when the water plugging cover (7) is installed.
CN202111114832.2A 2021-09-23 2021-09-23 Non-excavation repair process for rain sewage pipeline Active CN113819336B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439522A1 (en) * 1984-10-29 1985-08-22 Daimler-Benz Ag, 7000 Stuttgart Hose connection
US4900068A (en) * 1988-12-19 1990-02-13 Heyco Molded Products, Inc. Liquid tight connector for flexible non-metallic conduit and flexible non-metallic tubing
CN101109475A (en) * 2007-06-22 2008-01-23 上海水务建设工程有限公司 Method for repairing and constructing trenchless large caliber water feeding penstock
CN103174897A (en) * 2013-04-08 2013-06-26 上海沃施园艺股份有限公司 Hosepipe bypass seal joint
CN113043007A (en) * 2021-04-01 2021-06-29 东风本田汽车有限公司 Bolt tightening shaft, automatic bolt tightening device and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439522A1 (en) * 1984-10-29 1985-08-22 Daimler-Benz Ag, 7000 Stuttgart Hose connection
US4900068A (en) * 1988-12-19 1990-02-13 Heyco Molded Products, Inc. Liquid tight connector for flexible non-metallic conduit and flexible non-metallic tubing
CN101109475A (en) * 2007-06-22 2008-01-23 上海水务建设工程有限公司 Method for repairing and constructing trenchless large caliber water feeding penstock
CN103174897A (en) * 2013-04-08 2013-06-26 上海沃施园艺股份有限公司 Hosepipe bypass seal joint
CN113043007A (en) * 2021-04-01 2021-06-29 东风本田汽车有限公司 Bolt tightening shaft, automatic bolt tightening device and control method thereof

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