CN113048328A - Method for positioning damage point of underground pipeline in trenchless repair manner - Google Patents
Method for positioning damage point of underground pipeline in trenchless repair manner Download PDFInfo
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- CN113048328A CN113048328A CN202110294632.3A CN202110294632A CN113048328A CN 113048328 A CN113048328 A CN 113048328A CN 202110294632 A CN202110294632 A CN 202110294632A CN 113048328 A CN113048328 A CN 113048328A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008439 repair process Effects 0.000 title abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
-
- 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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- 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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/30—Inspecting, measuring or testing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention belongs to the field of pipeline engineering, in particular to a method for positioning a damage point of underground pipeline trenchless repair, which comprises the following steps; s1; firstly, emptying the mixture in the underground pipeline and cleaning the inner wall of the underground pipeline; s2; controlling a motor to drive a positioning device to enter a pipeline, starting an ultrasonic distance meter, and advancing at a constant speed; s3; determining the damaged position by measuring the numerical value of which the sum of distance data obtained by a plurality of pairs of ultrasonic distance measuring instruments on the diameter position of the positioning device is greater than the diameter of the pipeline; s4; at the moment, the camera and the illuminating lamp are turned on to manually determine the size, shape and dimension of the damage point, and the horizontal distance position where the damage point is recorded is determined to complete positioning; by implementing the method, the function of efficiently positioning the position of the damaged point is realized, the problem of low efficiency of the traditional positioning method is solved, and the efficiency of positioning the damaged point is improved; the function of adapting to pipelines with different inner diameters is realized, and the inner diameter range of the positioning device adapting to different pipelines is improved.
Description
Technical Field
The invention relates to the field of pipeline engineering, in particular to a method for positioning a damage point of underground pipeline in trenchless repair.
Background
The underground pipeline is a pipeline laid underground for conveying liquid, gas or loose solids; underground drainage pipelines which are fired by pottery clay in ancient China; modern underground pipelines are various in types, have various cross-section forms such as circular, elliptical, semi-elliptical, multi-heart-shaped, oval, rectangular (single hole, double holes and multiple holes), horseshoe-shaped and the like, and are constructed by adopting materials such as steel, cast iron, concrete, reinforced concrete, prestressed concrete, bricks, stone, asbestos cement, pottery clay, plastics, glass fiber reinforced plastics (reinforced plastics) and the like.
Underground pipelines are mostly poured by concrete, but due to the fact that soil texture density is not uniform when the pipelines are laid, stress of water pipes is not uniform under the erosion of rainwater, breakage and local damage occur under pressure, and in order to repair damaged points, the efficiency of pipeline excavation is low, and time and labor are wasted; therefore, the method for positioning the damage point of the underground pipeline in trenchless repair is provided for solving the problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems of low efficiency, time consumption and labor consumption of pipeline excavation for repairing the damaged points, the invention provides a method for positioning the damaged points of underground pipelines in a non-excavation repairing manner.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a method for positioning a damage point of an underground pipeline in trenchless repair, which comprises the following steps of;
s1; firstly, emptying the mixture in the underground pipeline and cleaning the inner wall of the underground pipeline;
s2; controlling a motor to drive a positioning device to enter a pipeline, starting an ultrasonic distance meter, and advancing at a constant speed;
s3; determining the damaged position by measuring the numerical value of which the sum of distance data obtained by a plurality of pairs of ultrasonic distance measuring instruments on the diameter position of the positioning device is greater than the diameter of the pipeline;
s4; at the moment, the camera and the illuminating lamp are turned on to manually determine the size, shape and dimension of the damage point, and the horizontal distance position where the position is recorded is determined to complete positioning.
Preferably, the positioning device comprises a fixed tube and an advancing unit; a forward unit is arranged in the fixed pipe; the advancing unit includes a folding slot; a rotating bottom plate is hinged in the folding groove; the rotating bottom plate is buckled and slidably connected with a buckling sliding plate; the lower end of the buckling sliding plate is rotatably connected with a power wheel; the power wheel is engaged and connected with a transmission belt; the upper end of the transmission belt is meshed with the second motor; the second motor is detachably and fixedly connected to the buckling sliding plate; during operation, the fastening sliding plate is connected to the rotating bottom plate in a fastening and sliding mode, so that the power wheel rotatably connected to the fastening sliding plate can be in contact with the inner walls of the pipelines with different inner diameters, and the fixed pipe is driven to move back and forth.
Preferably, a sealing cover is detachably and fixedly connected in the fixed pipe; a first motor is fixedly connected in the sealing cover in a sealing way; a second bevel gear is fixedly connected to an output shaft of the first motor; the second bevel gear is in meshed connection with a first bevel gear; the first bevel gear is fixedly connected to the threaded shaft; the threaded shaft is rotatably connected to the central fixing piece; the central fixing piece is fixedly connected in the fixing pipe; the threaded shaft is symmetrically threaded and sleeved with threaded sliding blocks; the threaded sliding block is sleeved and rotatably connected with a sliding pipe; the sliding pipe is fixedly connected with a clamping and fixing ring; the sliding pipe is hinged with a hinged shaft; a sleeve shaft is sleeved on the articulated shaft; the sleeve joint shaft is hinged in the rotating groove; the rotating groove is arranged in the fixed pipe; the sleeving shaft is fixedly connected with a supporting wheel; the during operation, through the positive and negative rotation of the first motor of drive, thereby under the meshing transmission effect of first bevel gear and second bevel gear, make the screw thread axle at central mounting internal rotation, thereby make the epaxial symmetrical screw thread of screw thread, the screw thread slider of symmetry meshing carries out the removal of symmetry, thereby drive the articulated shaft and cup joint the axle slope, and under the articulated shaft with cup joint the effect that the axle slided and cup joints, realize the transmission and rotate and can not block and die, thereby make the distance between the regulation supporting wheel, carry out stable rolling friction with the pipeline inner wall and be connected, thereby adapt to the pipeline of different internal diameters.
Preferably, the thread directions of the thread shafts are opposite and symmetrical; the clamping fixing rings are symmetrically detachably and fixedly connected on the sliding pipe; the central fixing piece is detachably and fixedly connected with a measuring fixing piece; a plurality of pairs of ultrasonic range finders are symmetrically and fixedly connected to the measuring fixing piece; during operation, the threaded shaft with opposite symmetrical directions is adopted, so that the first motor is driven to rotate, the threaded sliding blocks are symmetrically reciprocated, the hinged shaft and the sleeved shaft rotate around the hinged position of the sleeved shaft and the rotating groove, the distance between the supporting wheels is adjusted, stable rolling friction connection is carried out between the supporting wheels and the inner wall of the pipeline, and the pipeline is suitable for pipelines with different inner diameters.
Preferably, a plurality of balancing weights are detachably and fixedly connected to the rotating bottom plate; a storage battery is fixedly connected in the sealing cover in a sealing way; the during operation gives first motor, second motor, communication module and vision module power supply through the battery to realize the function of location, through a plurality of balancing weights, make the frictional force between power wheel and the pipeline can be adjusted, thereby adapt to different coefficient of friction's pipeline.
Preferably, the rotating bottom plate is provided with a threaded hole which is meshed with the bolt to correspondingly buckle the sliding plate; a buckle shaft is rotatably connected to the folding groove corresponding to the power wheel; during operation, the distance between the fastening sliding plate and the rotating bottom plate can be fixed through the bolts, so that the underground pipelines with different diameters can be adapted to advance and be positioned, and the power wheel is limited in a horizontal state through rotating the fastening shaft, so that the transportation and the movement are convenient.
The invention has the advantages that:
1. by implementing the method, the function of efficiently positioning the position of the damaged point is realized, the problem of low efficiency of the traditional positioning method is solved, and the efficiency of positioning the damaged point is improved;
2. according to the invention, through the structural design of the fixed pipe, the central fixing piece, the threaded shaft, the first bevel gear, the second bevel gear, the first motor, the threaded slider, the sliding pipe, the clamping fixing ring, the hinge shaft, the sleeve shaft, the rotating groove and the supporting wheel, the functions of adapting to pipelines with different inner diameters are realized, the problems of poor adaptability and poor stability of the existing positioning device are solved, and the inner diameter range of adapting to different pipelines of the positioning device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of the process steps of the present invention;
FIG. 2 is a partial perspective view of the present invention;
FIG. 3 is a front sectional view of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at A according to the present invention;
FIG. 5 is a schematic side sectional view of the present invention.
In the figure: 1. a fixed tube; 2. a central fixing member; 3. a threaded shaft; 4. a first bevel gear; 5. a second bevel gear; 6. a first motor; 7. a sealing cover; 8. a storage battery; 9. rotating the bottom plate; 10. buckling the sliding plate; 11. a power wheel; 12. a transmission belt; 13. a balancing weight; 14. a snap shaft; 15. a threaded slider; 16. a sliding tube; 17. clamping the fixing ring; 18. hinging a shaft; 19. sleeving and connecting the shaft; 20. a rotating groove; 21. A support wheel; 22. measuring the fixed part; 23. an ultrasonic range finder; 24. a folding slot; 25. a second motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a method for positioning a damaged point of an underground pipeline during trenchless repair comprises the following steps;
s1; firstly, emptying the mixture in the underground pipeline and cleaning the inner wall of the underground pipeline;
s2; controlling a motor to drive a positioning device to enter a pipeline, starting an ultrasonic distance meter, and advancing at a constant speed;
s3; determining the damaged position by measuring the numerical value of which the sum of distance data obtained by a plurality of pairs of ultrasonic distance measuring instruments on the diameter position of the positioning device is greater than the diameter of the pipeline;
s4; at the moment, the camera and the illuminating lamp are turned on to manually determine the size, shape and dimension of the damage point, and the horizontal distance position where the position is recorded is determined to complete positioning.
As an embodiment of the present invention, the positioning device includes a fixed tube 1 and an advancing unit; a forward unit is arranged in the fixed pipe 1; the advancing unit includes a folding slot 24; a rotating bottom plate 9 is hinged in the folding groove 24; the rotating bottom plate 9 is connected with a buckling sliding plate 10 in a buckling and sliding manner; the lower end of the buckling sliding plate 10 is rotatably connected with a power wheel 11; the power wheel 11 is engaged with a transmission belt 12; the upper end of the transmission belt 12 is connected with a second motor 25 in a meshing way; the second motor 25 is detachably and fixedly connected to the fastening sliding plate 10; when the device works, the rotating bottom plate 9 is buckled and slidably connected with the buckling sliding plate 10, so that the power wheel 11 rotatably connected with the buckling sliding plate 10 can be contacted with the inner walls of pipelines with different inner diameters, and the fixed pipe 1 is driven to move back and forth;
as an embodiment of the invention, a sealing cover 7 is detachably and fixedly connected in the fixed pipe 1; a first motor 6 is fixedly connected in the sealing cover 7 in a sealing way; a second bevel gear 5 is fixedly connected to an output shaft of the first motor 6; the second bevel gear 5 is connected with a first bevel gear 4 in a meshing way; the first bevel gear 4 is fixedly connected to the threaded shaft 3; the threaded shaft 3 is rotatably connected to the central fixing piece 2; the central fixing piece 2 is fixedly connected in the fixing pipe 1; the threaded shaft 3 is symmetrically sleeved with threaded sliders 15 in a threaded manner; the threaded sliding block 15 is rotatably connected with a sliding pipe 16 in a sleeved mode; a clamping and fixing ring 17 is fixedly connected to the sliding tube 16; the sliding tube 16 is hinged with a hinge shaft 18; a sleeve shaft 19 is sleeved on the hinge shaft 18; the sleeve shaft 19 is hinged in the rotating groove 20; the rotating groove 20 is arranged in the fixed pipe 1; the sleeve connecting shaft 19 is fixedly connected with a supporting wheel 21; during operation, the first motor 6 is driven to rotate forwards and backwards, so that the threaded shaft 3 rotates in the central fixing part 2 under the meshing transmission action of the first bevel gear 4 and the second bevel gear 5, the symmetrical threads and the symmetrically meshed threaded sliders 15 on the threaded shaft 3 move symmetrically, the hinged shaft 18 and the sleeved shaft 19 are driven to incline, the transmission rotation is realized under the sliding sleeved action of the hinged shaft 18 and the sleeved shaft 19 without being clamped, the distance between the supporting wheels 21 is adjusted, and the stable rolling friction connection is performed between the supporting wheels and the inner wall of a pipeline, so that the pipeline with different inner diameters is adapted;
as an embodiment of the present invention, the thread direction of the threaded shaft 3 is an opposite symmetrical shape; the clamping fixing rings 17 are symmetrically detachably and fixedly connected on the sliding pipe 16; the central fixing piece 2 is detachably and fixedly connected with a measuring fixing piece 22; a plurality of pairs of ultrasonic range finders 23 are symmetrically and fixedly connected to the measuring fixing piece 22; during operation, the first motor 6 is driven to rotate through the symmetrical threaded shafts 3 with opposite thread directions, so that the threaded sliders 15 perform symmetrical reciprocating motion, the hinge shafts 18 and the sleeve shaft 19 rotate around the positions where the sleeve shaft 19 is hinged to the rotating groove 20, the distance between the supporting wheels 21 is adjusted, and stable rolling friction connection is performed between the supporting wheels and the inner wall of a pipeline, so that the pipeline is suitable for pipelines with different inner diameters;
as an embodiment of the present invention, a plurality of balancing weights 13 are detachably and fixedly connected to the rotating bottom plate 9; a storage battery 8 is fixedly connected in the sealing cover 7 in a sealing way; when the positioning device works, the storage battery 8 supplies power to the first motor 6, the second motor 25, the communication module and the vision module, so that the positioning function is realized, and the friction force between the power wheel 11 and a pipeline can be adjusted through the plurality of balancing weights 13, so that the positioning device is suitable for pipelines with different friction coefficients;
as an embodiment of the present invention, the rotating bottom plate 9 is provided with a threaded hole for engaging with a corresponding fastening sliding plate 10; the folding groove 24 is rotatably connected with a buckle shaft 14 corresponding to the power wheel 11; during operation, the distance between the fastening sliding plate 10 and the rotating bottom plate 9 can be fixed through bolts, so that the underground pipelines with different diameters can be adapted to advance and be positioned, and the power wheel 11 is limited in a horizontal state through rotating the fastening shaft 14, so that the transportation and the movement are convenient.
According to the working principle, a buckling sliding plate 10 is buckled and slidably connected on the rotating bottom plate 9, so that a power wheel 11 rotationally connected on the buckling sliding plate 10 can be contacted with the inner walls of pipelines with different inner diameters, and the fixed pipe 1 is driven to move back and forth; the first motor 6 is driven to rotate forwards and backwards, so that the threaded shaft 3 rotates in the central fixing part 2 under the meshing transmission action of the first bevel gear 4 and the second bevel gear 5, symmetrical threads and symmetrical meshed threaded sliders 15 on the threaded shaft 3 move symmetrically, the hinged shaft 18 and the sleeve shaft 19 are driven to incline, and the transmission rotation is realized without being clamped under the sliding sleeve effect of the hinged shaft 18 and the sleeve shaft 19, so that the distance between the supporting wheels 21 is adjusted, and the stable rolling friction connection is carried out on the inner wall of a pipeline, and the pipeline is suitable for pipelines with different inner diameters; the first motor 6 is driven to rotate through the symmetrical threaded shafts 3 with opposite thread directions, so that the threaded sliders 15 symmetrically reciprocate, the hinge shafts 18 and the sleeve shaft 19 rotate around the positions where the sleeve shaft 19 is hinged with the rotating groove 20, the distance between the supporting wheels 21 is adjusted, and the supporting wheels are stably connected with the inner wall of the pipeline in a rolling friction mode, so that the pipeline is suitable for pipelines with different inner diameters; the first motor 6, the second motor 25, the communication module and the vision module are powered by the storage battery 8, so that the positioning function is realized, and the friction force between the power wheel 11 and the pipeline can be adjusted by the aid of the balancing weights 13, so that the power wheel is suitable for pipelines with different friction coefficients; the distance between the fastening sliding plate 10 and the rotating bottom plate 9 can be fixed through bolts, so that the underground pipelines with different diameters can be adapted to advance and be positioned, and the power wheel 11 is limited in a horizontal state through rotating the fastening shaft 14, so that the transportation and the movement are convenient.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. A method for positioning a damage point of underground pipeline trenchless repairing is characterized in that: the positioning method comprises the following steps;
s1; firstly, emptying the mixture in the underground pipeline and cleaning the inner wall of the underground pipeline;
s2; controlling a motor to drive a positioning device to enter a pipeline, starting an ultrasonic distance meter, and advancing at a constant speed;
s3; determining the damaged position by measuring the numerical value of which the sum of distance data obtained by a plurality of pairs of ultrasonic distance measuring instruments on the diameter position of the positioning device is greater than the diameter of the pipeline;
s4; at the moment, the camera and the illuminating lamp are turned on to manually determine the size, shape and dimension of the damage point, and the horizontal distance position where the position is recorded is determined to complete positioning.
2. The method for trenchless rehabilitation of site location of damaged underground pipeline of claim 1 wherein: the positioning device comprises a fixed tube (1) and an advancing unit; a forward unit is arranged in the fixed pipe (1); the advancement unit comprises a folding slot (24); a rotating bottom plate (9) is hinged in the folding groove (24); the rotating bottom plate (9) is connected with a buckling sliding plate (10) in a buckling and sliding manner; the lower end of the buckling sliding plate (10) is rotationally connected with a power wheel (11); the power wheel (11) is engaged and connected with a transmission belt (12); the upper end of the transmission belt (12) is connected with a second motor (25) in a meshed manner; the second motor (25) is detachably and fixedly connected to the buckling sliding plate (10).
3. The method for trenchless rehabilitation of location of damaged points of underground piping according to claim 2, wherein: a sealing cover (7) is detachably and fixedly connected in the fixed pipe (1); a first motor (6) is fixedly connected in the sealing cover (7) in a sealing way; a second bevel gear (5) is fixedly connected to an output shaft of the first motor (6); the second bevel gear (5) is connected with a first bevel gear (4) in a meshing way; the first bevel gear (4) is fixedly connected to the threaded shaft (3); the threaded shaft (3) is rotatably connected to the central fixing piece (2); the central fixing piece (2) is fixedly connected in the fixing pipe (1); the threaded shaft (3) is symmetrically sleeved with threaded sliding blocks (15) in a threaded manner; the threaded sliding block (15) is sleeved and rotatably connected with a sliding pipe (16); a clamping and fixing ring (17) is fixedly connected to the sliding tube (16); the sliding pipe (16) is hinged with a hinge shaft (18); a sleeve shaft (19) is sleeved on the articulated shaft (18); the sleeve joint shaft (19) is hinged in the rotating groove (20); the rotating groove (20) is arranged in the fixed pipe (1); and a supporting wheel (21) is fixedly connected to the sleeving shaft (19).
4. The method for trenchless rehabilitation of location of damaged spot of underground piping according to claim 3, wherein: the thread direction of the thread shaft (3) is in an opposite symmetrical shape; the clamping fixing rings (17) are symmetrically detachably and fixedly connected on the sliding pipe (16); the central fixing piece (2) is detachably and fixedly connected with a measuring fixing piece (22); and a plurality of pairs of ultrasonic range finders (23) are symmetrically and fixedly connected to the measuring fixing piece (22).
5. The method for trenchless rehabilitation of location of damaged spot of underground piping according to claim 4, wherein: a plurality of balancing weights (13) are detachably and fixedly connected to the rotating bottom plate (9); and a storage battery (8) is fixedly connected in the sealing cover (7) in a sealing way.
6. The method for trenchless rehabilitation of location of damaged spot of underground piping according to claim 5, wherein: the rotating bottom plate (9) is provided with a threaded hole which is meshed with a bolt to correspondingly buckle the sliding plate (10); the folding groove (24) is rotatably connected with a buckle shaft (14) corresponding to the power wheel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294632.3A CN113048328A (en) | 2021-03-19 | 2021-03-19 | Method for positioning damage point of underground pipeline in trenchless repair manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294632.3A CN113048328A (en) | 2021-03-19 | 2021-03-19 | Method for positioning damage point of underground pipeline in trenchless repair manner |
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| Publication Number | Publication Date |
|---|---|
| CN113048328A true CN113048328A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110294632.3A Withdrawn CN113048328A (en) | 2021-03-19 | 2021-03-19 | Method for positioning damage point of underground pipeline in trenchless repair manner |
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| CN (1) | CN113048328A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751956A (en) * | 2021-09-23 | 2021-12-07 | 马鞍山南马智能制造研究所有限公司 | Welding is with shape auxiliary device that preapres for an unfavorable turn of events |
-
2021
- 2021-03-19 CN CN202110294632.3A patent/CN113048328A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751956A (en) * | 2021-09-23 | 2021-12-07 | 马鞍山南马智能制造研究所有限公司 | Welding is with shape auxiliary device that preapres for an unfavorable turn of events |
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Application publication date: 20210629 |
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| WW01 | Invention patent application withdrawn after publication |