CN112013282B - Municipal drainage pipeline leakage monitoring system - Google Patents
Municipal drainage pipeline leakage monitoring system Download PDFInfo
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- CN112013282B CN112013282B CN202010780752.XA CN202010780752A CN112013282B CN 112013282 B CN112013282 B CN 112013282B CN 202010780752 A CN202010780752 A CN 202010780752A CN 112013282 B CN112013282 B CN 112013282B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000012806 monitoring device Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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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
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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
- 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
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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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
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The application relates to a municipal drainage pipeline leakage monitoring system, which comprises an outer ring sleeved on the peripheral side of a drainage pipe, wherein four water quality monitoring probes for monitoring the water leakage of the drainage pipe are fixed on the inner peripheral surface of the outer ring, and the municipal drainage pipeline leakage monitoring system also comprises two transmission gears rotatably arranged on the outer peripheral surface of the outer ring; one side of each transmission gear, which is close to the outer ring, is provided with an internal threaded hole; the internal thread hole internal thread of drive gear has the lead screw that is used for with drain pipe outer peripheral face butt. This application has the effect of fixing monitor.
Description
Technical Field
The application relates to the field of pipeline leakage monitoring, in particular to a municipal drainage pipeline leakage monitoring system.
Background
At present, a drainage pipe refers to a system consisting of a pipe duct and its attached facilities for collecting and discharging sewage, wastewater and rainwater. Including main pipes, branch pipes, and piping to a process plant.
In the prior art, reference may be made to the chinese patent application with the publication number CN106884473A, which discloses a self-checking drainage pipeline, comprising a pipeline main body, wherein a fixed monitoring device and a movable monitoring device are sleeved on the pipeline main body in parallel, the fixed monitoring device comprises a fixed ferrule, two monitoring probes are symmetrically arranged on an inner ring of the fixed ferrule, one ends of the monitoring probes, which are far away from the fixed ferrule, penetrate through the pipeline main body and extend to the interior of the pipeline main body, a water quality detector main body is arranged on one side of the fixed ferrule, a data processor is arranged on one side of the water quality detector main body, which is far away from the fixed ferrule, and the monitoring probes are electrically connected with the water quality detector main body. However, the fixed ferrule lacks a fixing structure for fixing the fixed ferrule on the casing main body, and when the monitoring probe monitors water quality, the problem that the monitoring accuracy is influenced by the sliding or rotation of the ferrule may occur.
In view of the above-mentioned related art, the inventors consider that there is a drawback of lack of fixing the monitoring probe.
Disclosure of Invention
In order to fix monitor probe, this application provides a municipal drainage pipe leakage monitoring system.
The application provides a municipal drainage pipeline leakage monitoring system adopts following technical scheme:
a municipal drainage pipeline leakage monitoring system comprises an outer ring sleeved on the periphery of a drainage pipe, wherein four water quality monitoring probes for monitoring the water leakage of the drainage pipe are fixed on the inner peripheral surface of the outer ring, and the municipal drainage pipeline leakage monitoring system also comprises two transmission gears rotatably arranged on the outer peripheral surface of the outer ring; one side of each transmission gear, which is close to the outer ring, is provided with an internal threaded hole; and the inner thread hole of the transmission gear is internally threaded with a lead screw which is used for being abutted against the outer peripheral surface of the drain pipe.
Through adopting above-mentioned technical scheme, through rotating drive gear for drive gear drives the lead screw and removes to being close to drain pipe one side, thereby makes lead screw and drain pipe butt, and then fixes the outer loop through the lead screw, thereby improves the stability among the water quality monitoring probe monitoring process.
Preferably, the inner circumferential surface of the outer ring is provided with two groups of rotating mechanisms for rotating the outer ring; each group of rotating mechanisms comprises a circular groove arranged on the inner peripheral surface of the outer ring, a first spring fixed on one side of the circular groove close to the transmission gear and a connecting piece fixed on one end of the first spring far away from the transmission gear; the connecting piece is connected with the outer ring in a sliding manner along the radial direction of the outer ring through a circular groove; a roller mounting seat is fixed on one side of the connecting piece, which is far away from the first spring, and a roller is rotatably mounted on one side of the roller mounting seat, which is far away from the connecting piece, along the axial direction of the outer ring; two the relative inboard of solid fixed ring is provided with the spacing subassembly that the restriction connecting piece removed to one side of being close to the drain pipe respectively.
By adopting the technical scheme, the first spring applies elastic force to one side, close to the drain pipe, of the connecting piece, so that the roller is abutted to the drain pipe; through setting up the gyro wheel, be convenient for make the outer loop remove along the drain pipe axial, and then be convenient for monitor the condition of revealing of drain pipe different positions.
Preferably, two guide shafts are fixed at the top of the roller mounting seat; two guide grooves are formed in the inner peripheral surface of the outer ring, and each guide shaft is connected with the outer ring in a sliding mode along the vertical direction through the guide groove.
Through adopting above-mentioned technical scheme, the guide way provides the guide effect for the guiding axle, reduces the gyro wheel mount pad along the deviating orbital possibility of vertical removal in-process.
Preferably, each group of limiting assemblies comprises two bevel gear rings which are respectively rotatably mounted on the outer peripheral surface of the outer ring and are used for being meshed with the transmission gear, a fixing ring fixed on the inner peripheral surface of the bevel gear ring, a support ring fixed on the inner peripheral surface of the outer ring, a rotating circular ring fixed on one side, close to the roller, of the fixing ring, two semicircular rings hinged to one side, far away from the fixing ring, of the rotating circular ring, and inserting strips hinged to one sides, far away from the rotating circular ring, of the two semicircular rings; two strip-shaped slots are formed in one side, close to the roller, of the support ring, and each inserting strip is connected with the outer ring in a sliding mode along the radial direction of the bevel gear ring through the strip-shaped slot; the inner peripheral surface of the outer ring is provided with a sliding groove along the axial direction of the outer ring, and a sliding piece is arranged in the sliding groove in a sliding manner along the axial direction of the outer ring; a first abutting assembly used for driving the sliding piece to move towards one side close to the connecting piece is arranged between each inserting strip and the sliding piece; every all be provided with between sliding piece and the connecting piece and be used for the drive connecting piece to keeping away from the second of drain pipe one side removal and support the pressure subassembly.
Through adopting above-mentioned technical scheme, after transmission gear drove the rotation of awl ring gear, the awl ring gear drove the rotation ring and rotates, rotates the ring rotation in-process, and the semicircle ring drives the grafting strip and removes to being close to one side of sliding. After the inserting strip is contacted with the sliding piece, the inserting strip drives the sliding piece to move towards one side close to the connecting piece through the first abutting component; the sliding piece drives the connecting piece to move towards one side close to the transmission gear through the second abutting component, so that the roller is separated from the drain pipe. The lead screw can support the drain pipe gradually when gyro wheel and drain pipe separation to accomplish monitoring system and move the conversion of state to the stationary state.
Preferably, the first abutting assembly comprises two first inclined planes which are respectively arranged on the opposite inner sides of the inserting strip and the sliding piece.
Through adopting above-mentioned technical scheme, the grafting strip supports through first inclined plane and presses the sliding part, is convenient for promote the sliding part through the grafting strip and removes to being close to connecting piece one side.
Preferably, the second abutting assembly comprises a circular truncated cone fixed on one side of the connecting piece far away from the transmission gear and a second inclined plane arranged on one side of the sliding piece far away from the inserting strip and used for abutting against the circular truncated cone.
Through adopting above-mentioned technical scheme, after the sliding part passes through second inclined plane and round platform butt, the sliding part promotes the connecting piece and moves to being close to drive gear one side, is convenient for make gyro wheel and drain pipe separation.
Preferably, the inserting strip is fixed with a first dovetail strip on one side far away from the roller, a first dovetail groove is formed on one side far away from the roller of the strip-shaped inserting groove, and the first dovetail strip is connected with the fixing ring in a sliding mode along the vertical direction through the first dovetail groove.
Through adopting above-mentioned technical scheme, first dovetail provides the guide effect for first dovetail, reduces the grafting strip along the vertical removal in-process possibility of deviating from the track.
Preferably, a second dovetail strip is fixed on one side of the sliding part, which is close to the transmission gear, a second dovetail groove is formed on one side of the sliding groove, which is close to the transmission gear, and the second dovetail strip is connected with the outer ring in a sliding mode along the axial direction of the outer ring through the second dovetail groove.
By adopting the technical scheme, the second dovetail groove provides a guiding effect for the second dovetail strip, and the possibility that the sliding piece deviates from the track in the axial movement process of the outer ring is reduced.
To sum up, this application includes following at least one municipal drainage pipe leakage monitoring system beneficial technological effect:
the transmission gear is rotated to drive the lead screw to move towards one side close to the drain pipe, so that the lead screw is abutted against the drain pipe, the outer ring is fixed through the lead screw, and the stability of the water quality monitoring probe in the monitoring process is improved;
the arrangement of the roller is convenient for moving the outer ring along the axial direction of the drain pipe, so that the leakage conditions of different positions of the drain pipe can be monitored conveniently;
can realize gyro wheel and drain pipe separation through spacing subassembly, the lead screw can support the drain pipe gradually simultaneously and press to accomplish monitoring system by the conversion of moving state to the stationary state.
Drawings
FIG. 1 is a partial cross-sectional view of a leak monitoring system according to an embodiment of the application.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Description of reference numerals: 1. an outer ring; 11. a conical gear ring; 12. a first dovetail groove; 13. a transmission gear; 14. a fixing ring; 15. an internally threaded bore; 16. a lead screw; 17. a water quality monitoring probe; 2. a rotating mechanism; 21. a circular groove; 22. a first spring; 23. a connecting member; 24. a roller mounting seat; 25. a roller; 26. a guide shaft; 27. a guide groove; 3. a limiting component; 31. a support ring; 32. rotating the circular ring; 33. a semicircular ring; 34. inserting strips; 35. a strip-shaped slot; 36. a chute; 37. a sliding member; 38. a first inclined plane; 39. a circular truncated cone; 4. a first dovetail bar; 41. a second inclined plane; 42. a second dovetail bar; 43. a second dovetail groove; 44. and a water discharge pipe.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses municipal drainage pipeline leakage monitoring system. Referring to fig. 1, the municipal drainage pipeline leakage monitoring system comprises an outer ring 1, two bevel gear rings 11 rotatably mounted on the outer peripheral surface of the outer ring 1, and two transmission gears 13 rotatably mounted on the outer peripheral surface of the outer ring 1 and respectively meshed with the two bevel gear rings 11. A fixing ring 14 is fixed to the inner peripheral surface of each bevel ring 11. One side of each transmission gear 13, which is close to the outer ring 1, is provided with an internal threaded hole 15; a screw 16 for abutting against the outer peripheral surface of the drain pipe 44 is screwed into the female screw hole 15 of the transmission gear 13. Four water quality monitoring probes 17 for monitoring whether the water discharge pipe 44 leaks are fixed on the inner peripheral surface of the outer ring 1. By rotating the transmission gear 13, the lead screw 16 moves to the side close to the drain pipe 44; finally, the screw 16 abuts against the outer peripheral surface of the drain pipe 44, thereby fixing the outer ring 1 to the outer peripheral surface of the drain pipe 44, and facilitating the monitoring of the water leakage of the water pipe by the water quality monitoring probe 17.
Referring to fig. 1, the inner circumferential surface of the outer ring 1 is provided with two sets of rotating mechanisms 2 for rotating the outer ring 1. Each set of rotating mechanism 2 comprises a circular groove 21 arranged on the inner circumferential surface of the outer ring 1, a first spring 22 fixed on one side of the circular groove 21 close to the transmission gear 13 and a connecting piece 23 fixed on one end of the first spring 22 far away from the transmission gear 13. The connecting piece 23 is slidably arranged in the circular groove 21 along the radial direction of the outer ring 1. A roller mounting seat 24 is fixed on one side of the connecting piece 23 far away from the first spring 22, and a roller 25 is rotatably mounted on one side of the roller mounting seat 24 far away from the connecting piece 23 along the axial direction of the outer ring 1; the first spring 22 is sleeved around the lead screw 16. The first spring 22 applies an elastic force to the connection member 23 toward the side close to the drain pipe 44, thereby bringing the roller 25 into abutment with the drain pipe 44; by providing the rollers 25, the movement of the outer ring 1 is facilitated. Two guide shafts 26 are fixed on the top of the roller mounting seat 24; two guide grooves 27 are opened to outer loop 1 inner peripheral surface, and every guiding axle 26 all slides along vertical and outer loop 1 through guide grooves 27 and is connected. The guide slot 27 provides a guide for the guide shaft 26 and reduces the likelihood of the roller mount 24 deviating from the track during vertical movement.
Referring to fig. 1 and 2, opposite inner sides of the two fixing rings 14 are respectively provided with a stopper assembly 3 for restricting the movement of the connection member 23 to a side close to the drain pipe 44. Each group of limiting assemblies 3 comprises a support ring 31 fixed on the inner circumferential surface of the outer ring 1, a rotating ring 32 fixed on one side of the fixing ring 14 close to the roller 25, two semicircular rings 33 hinged with one side of the rotating ring 32 far away from the fixing ring 14, and inserting strips 34 hinged with one sides of the two semicircular rings 33 far away from the rotating ring 32. Two strip slots 35 have been seted up to support ring 31 near gyro wheel 25 one side, and every grafting strip 34 all slides along the awl ring gear 11 through strip slot 35 and is connected with outer loop 1. The inner peripheral surface of the outer ring 1 is provided with a sliding groove 36 along the axial direction of the outer ring 1, and a sliding piece 37 is arranged in the sliding groove 36 in a sliding manner along the axial direction of the outer ring 1; the opposite inner sides of the plug strip 34 and the sliding piece 37 are respectively provided with a first inclined surface 38. A circular truncated cone 39 is fixed on one side of the connecting piece 23 away from the transmission gear 13; the sliding piece 37 is provided with a second inclined surface 41 away from the insertion strip 34 for abutting against the circular truncated cone 39. After the transmission gear 13 drives the bevel gear ring 11 to rotate, the bevel gear ring 11 drives the rotating circular ring 32 to rotate, and in the rotating process of the rotating circular ring 32, the semicircular ring 33 drives the plugging strip 34 to move towards one side close to the sliding piece 37. After the plugging strip 34 contacts the sliding member 37, the plugging strip 34 presses the sliding member 37 through the first inclined surface 38, and pushes the sliding member 37 to move to the side close to the connecting member 23; when the slider 37 abuts against the circular truncated cone 39 via the second inclined surface 41, the slider 37 pushes the link 23 to move toward the transmission gear 13, and the roller 25 is separated from the drain pipe 44. The inserting strip 34 is fixed with a first dovetail strip 4 on one side away from the roller 25, a first dovetail groove 12 is formed on one side of the strip-shaped slot 35 away from the roller 25, and the first dovetail strip 4 is connected with the fixing ring 14 in a sliding mode along the vertical direction through the first dovetail groove 12. A second dovetail strip 42 is fixed on one side of the sliding piece 37 close to the transmission gear 13, a second dovetail groove 43 is formed on one side of the sliding groove 36 close to the transmission gear 13, and the second dovetail strip 42 is connected with the outer ring 1 in a sliding mode along the axial direction of the outer ring 1 through the second dovetail groove 43.
The implementation principle of the municipal drainage pipe 44-way leakage monitoring system is as follows:
when the water leakage condition is monitored, the screw rod 16 moves to the side close to the water discharge pipe 44 by rotating the transmission gear 13; finally, the screw 16 abuts against the outer peripheral surface of the drain pipe 44, thereby fixing the outer ring 1 to the outer peripheral surface of the drain pipe 44, and facilitating the monitoring of the water leakage of the water pipe by the water quality monitoring probe 17.
After the transmission gear 13 rotates, the transmission gear 13 drives the conical gear ring 11 to rotate, the conical gear ring 11 drives the rotating circular ring 32 to rotate, and in the rotating process of the rotating circular ring 32, the semicircular ring 33 drives the plugging strip 34 to move towards one side close to the sliding piece 37. After the plugging strip 34 contacts the sliding member 37, the plugging strip 34 presses the sliding member 37 through the first inclined surface 38, and pushes the sliding member 37 to move to the side close to the connecting member 23; when the slider 37 abuts against the circular truncated cone 39 via the second inclined surface 41, the slider 37 pushes the link 23 to move toward the transmission gear 13, and the roller 25 is separated from the drain pipe 44.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. The utility model provides a municipal drainage pipe leakage monitoring system, locates outer ring (1) of drain pipe (44) week side including the cover, outer ring (1) inner peripheral surface is fixed with four water quality monitoring probes (17) that are used for monitoring drain pipe (44) and leak, its characterized in that: the transmission mechanism also comprises two transmission gears (13) rotatably arranged on the peripheral surface of the outer ring (1); one side of each transmission gear (13) close to the outer ring (1) is provided with an internal threaded hole (15); a screw rod (16) which is used for being abutted against the outer peripheral surface of the drain pipe (44) is connected with the internal thread of the internal thread hole (15) of the transmission gear (13); the inner circumferential surface of the outer ring (1) is provided with two groups of rotating mechanisms (2) for rotating the outer ring (1); each group of rotating mechanisms (2) comprises a circular groove (21) formed in the inner peripheral surface of the outer ring (1), a first spring (22) fixed to one side, close to the transmission gear (13), of the circular groove (21), and a connecting piece (23) fixed to one end, far away from the transmission gear (13), of the first spring (22); the connecting piece (23) is connected with the outer ring (1) in a sliding manner along the radial direction of the outer ring (1) through a circular groove (21); a roller mounting seat (24) is fixed on one side, away from the first spring (22), of the connecting piece (23), and a roller (25) is axially and rotatably mounted on one side, away from the connecting piece (23), of the roller mounting seat (24) along the outer ring (1); two groups of limiting assemblies (3) which are respectively used for limiting the connecting piece (23) to move towards one side close to the drain pipe (44) are arranged in the outer ring (1); each group of limiting assemblies (3) comprises two conical tooth rings (11) which are rotatably mounted on the outer peripheral surface of an outer ring (1) respectively and are used for being meshed with a transmission gear (13), a fixing ring (14) fixed on the inner peripheral surface of the conical tooth ring (11), a supporting ring (31) fixed on the inner peripheral surface of the outer ring (1), a rotating circular ring (32) fixed on one side, close to a roller (25), of the fixing ring (14), two semicircular rings (33) hinged to one side, far away from the fixing ring (14), of the rotating circular ring (32), and inserting strips (34) hinged to one sides, far away from the rotating circular ring (32), of the two semicircular rings (33) respectively; two strip-shaped slots (35) are formed in one side, close to the roller (25), of the support ring (31), and each inserting strip (34) is connected with the outer ring (1) in a sliding mode along the radial direction of the bevel gear ring (11) through the strip-shaped slots (35); the inner circumferential surface of the outer ring (1) is provided with a sliding groove (36) along the axial direction of the outer ring (1), and a sliding piece (37) is arranged in the sliding groove (36) in a sliding manner along the axial direction of the outer ring (1); a first pressing component for driving the sliding piece (37) to move towards one side close to the connecting piece (23) is arranged between each inserting strip (34) and the sliding piece (37); and a second pressing component for driving the connecting piece (23) to move towards one side far away from the drain pipe (44) is arranged between each sliding piece (37) and the connecting piece (23).
2. The municipal drainage pipeline leak monitoring system of claim 1, wherein: two guide shafts (26) are fixed at the top of the roller mounting seat (24); two guide grooves (27) are formed in the inner peripheral surface of the outer ring (1), and each guide shaft (26) is connected with the outer ring (1) in a sliding mode along the vertical direction through the guide grooves (27).
3. The municipal drainage pipeline leak monitoring system of claim 1, wherein: the first pressing component comprises two first inclined planes (38) which are respectively arranged on the opposite inner sides of the inserting strip (34) and the sliding piece (37).
4. The municipal drainage pipeline leak monitoring system of claim 1, wherein: the second abutting assembly comprises a circular truncated cone (39) fixed on one side, away from the transmission gear (13), of the connecting piece (23) and a second inclined surface (41) arranged on one side, away from the inserting strip (34), of the sliding piece (37) and used for abutting against the circular truncated cone (39).
5. The municipal drainage pipeline leak monitoring system of claim 1, wherein: one side, away from gyro wheel (25), of grafting strip (34) is fixed with first dovetail strip (4), gyro wheel (25) one side is kept away from in bar slot (35) has seted up first dovetail (12), first dovetail strip (4) are connected along vertical sliding through first dovetail (12) and solid fixed ring (14).
6. The municipal drainage pipeline leak monitoring system of claim 1, wherein: one side of the sliding piece (37) close to the transmission gear (13) is fixed with a second dovetail strip (42), one side of the sliding groove (36) close to the transmission gear (13) is provided with a second dovetail groove (43), and the second dovetail strip (42) is connected with the outer ring (1) in a sliding mode along the axial direction of the outer ring (1) through the second dovetail groove (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780752.XA CN112013282B (en) | 2020-08-06 | 2020-08-06 | Municipal drainage pipeline leakage monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780752.XA CN112013282B (en) | 2020-08-06 | 2020-08-06 | Municipal drainage pipeline leakage monitoring system |
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| CN112013282A CN112013282A (en) | 2020-12-01 |
| CN112013282B true CN112013282B (en) | 2022-02-25 |
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