CN114837923A - Water pump switch controlled by water level regulation - Google Patents
Water pump switch controlled by water level regulation Download PDFInfo
- Publication number
- CN114837923A CN114837923A CN202210418865.4A CN202210418865A CN114837923A CN 114837923 A CN114837923 A CN 114837923A CN 202210418865 A CN202210418865 A CN 202210418865A CN 114837923 A CN114837923 A CN 114837923A
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- China
- Prior art keywords
- side wall
- water pump
- water
- water level
- pair
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/025—Stopping, starting, unloading or idling control by means of floats
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a water pump switch for regulating and controlling water level, which comprises a water pump body, a water level control device, a bracket and a controller, wherein the water pump body is provided with a water inlet and a water outlet; the water pump body is arranged at the bottom of the water pit; the lower end of the water pump body is provided with a water suction pipe, and the upper end of the water pump body is provided with a drain pipe; the bracket is arranged on the ground; the controller is fixed on the bracket; the water level control device comprises a cylindrical control shell; a cylindrical groove-shaped vertical moving groove is formed in the control shell; a water inlet hole with a downward opening is formed on the bottom surface of the vertical moving groove; the control shell is positioned at the right end of the water pit and is vertically movably arranged at the lower side of the bracket; a floating plate is vertically arranged in the vertical moving groove in a moving mode; a balancing weight is fixed on the upper end surface of the floating plate; the top of the vertical moving groove is vertically provided with a cylindrical upper water level limiting device in a moving way; and a lower water level limiting device is arranged on the lower side wall of the vertical moving groove.
Description
Technical Field
The invention relates to the technical field of water pump control switches, in particular to a water pump switch for water level regulation control.
Background
The coal mine generates a large amount of industrial wastewater during production, and the top and bottom plates of the mining roadway are drenched and drained, and the like, and the water directly enters the mining roadway and directly influences the safety and civilized production of a mine. The existing water pump has a water level monitoring function, but a water level monitoring value cannot be adjusted, so that the water pump is not strong in use adaptability.
Disclosure of Invention
The invention aims to provide a water pump switch for water level regulation control, aiming at the technical problem that the existing water pump is not high in use adaptability.
The technical scheme for solving the technical problems is as follows: a water pump switch for regulating and controlling water level comprises a water pump body, a water level control device, a bracket and a controller; the water pump body is arranged at the bottom of the water pit; the lower end of the water pump body is provided with a water suction pipe, and the upper end of the water pump body is provided with a drain pipe; the bracket is arranged on the ground; the controller is fixed on the bracket; the water level control device comprises a cylindrical control shell; a cylindrical groove-shaped vertical moving groove is formed in the control shell; a water inlet hole with a downward opening is formed on the bottom surface of the vertical moving groove; the control shell is positioned at the right end of the water pit and is vertically movably arranged at the lower side of the bracket; a floating plate is vertically arranged in the vertical moving groove in a moving mode; a balancing weight is fixed on the upper end surface of the floating plate; the top of the vertical moving groove is vertically provided with a cylindrical upper water level limiting device in a moving way; a lower water level limiting device is arranged on the lower side wall of the vertical moving groove; the lower water level limiting device, the upper water level limiting device and the water pump body are respectively electrically connected with the controller.
Preferably, the bracket comprises a lower horizontal support plate fixed on the bottom surface; a pair of vertical supporting plates distributed front and back are formed at the left end of the upper end surface of the lower horizontal supporting plate; an upper horizontal supporting plate is formed between the upper ends of the left end surface faces of the pair of vertical supporting plates; the control shell is vertically movably arranged on the lower side of the upper horizontal support plate; the controller is fixed on the upper end face of the lower horizontal support plate.
Preferably, a pair of upper vertical guide posts distributed front and back are formed at the left end of the upper end surface of the control shell; a pair of upper vertical guide posts vertically penetrate through the upper horizontal support plate; the right end of the upper horizontal supporting plate vertically penetrates through the lower horizontal supporting plate and is in threaded connection with an upper driving bolt; the lower end of the upper driving bolt is pivoted on the upper end surface of the control shell.
Preferably, a pair of lower vertical guide posts distributed front and back is formed between the upper side wall and the lower side wall of the vertical moving groove; the floating plate is vertically sleeved on the pair of lower vertical guide posts.
Preferably, the upper water level limiting device comprises a cylindrical upper limiting seat; an upper cavity is formed inside the upper limiting seat; a first upper pressure sensor is fixed at the center of the upper side wall of the upper cavity; spring placing grooves are respectively formed at the left end and the right end of the upper side wall of the upper cavity; a pair of limiting guide rods distributed left and right are formed on the upper side wall of the spring accommodating groove; a stop block is formed at the bottom of the limiting guide rod; a sensor mounting plate is vertically sleeved on the pair of limiting guide rods; a second upper pressure sensor is fixed on the lower end face of the sensor mounting plate; an upper pressure spring is sleeved at the upper end of the limiting guide rod; the upper end of the upper pressure spring abuts against the upper side wall of the spring mounting groove, and the lower end of the upper pressure spring abuts against the upper end face of the sensor mounting plate; a pair of second upper ejector rods and a first upper ejector rod vertically penetrate through the lower side wall of the upper limiting seat; the first upper ejector rod is opposite to the first upper pressure sensor; the second upper ejector rod is opposite to the second upper pressure sensor; a second limiting ring is formed at the upper part of the second upper ejector rod; a first limiting ring is formed at the upper part of the first upper ejector rod; when the second upper ejector rod and the first upper ejector rod are positioned at the lowest ends, the pair of second upper pressure sensors are lower than the first upper pressure sensors, and the lower ends of the second upper ejector rods are lower than the lower ends of the first upper ejector rods; the second upper ejector rod and the first upper ejector rod are equal in height; the first upper pressure sensor and the second upper pressure sensor are electrically connected with the controller.
Preferably, the upper side wall of the control shell vertically penetrates through the lower driving bolt and is screwed with the lower driving bolt; the upper limiting seat is pivoted at the lower end of the lower driving bolt.
Preferably, the left end and the right end of the lower side wall of the vertical moving groove are respectively formed with a lower cavity; a lower pressure sensor is arranged on the bottom surface of the lower cavity; an upper through hole with an upward opening is formed on the upper side wall of the lower cavity; a lower guide rod is formed between the left end and the right end of the upper side wall and the lower side wall of the lower cavity; a lower horizontal driving plate is vertically and movably arranged in the lower cavity; a lower ejector rod vertically penetrates through the lower horizontal driving plate and is fixed on the lower horizontal driving plate; the lower ejector rod is positioned right above the lower pressure sensor; the lower horizontal driving plate is vertically sleeved on the pair of lower guide rods; a lower pressure spring is sleeved on the lower guide rod; the upper end of the lower pressure spring abuts against the lower end face of the lower horizontal driving plate, and the lower end of the lower pressure spring abuts against the lower side wall of the lower cavity; when the lower ejector rod is positioned at the uppermost end, the upper end of the lower ejector rod exceeds the lower side wall surface of the vertical moving groove; a sealing ring is arranged on the side wall of the upper through hole; the lower ejector rod vertically penetrates through the sealing ring and is arranged in a sealing and moving mode; the down force sensor is electrically connected with the controller.
The invention has the beneficial effects that: the upper water level and the lower water level can be adjusted, so that the use adaptability of the water pump is improved.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention;
FIG. 2 is a schematic structural view of a cross section of the water level limiting device of the present invention;
fig. 3 is a partially enlarged structural view of a in fig. 1 according to the present invention.
In the figure, 10, a water pump body; 11. a suction pipe; 12. a drain pipe; 20. a water level control device; 21. a control housing; 210. a vertical moving groove; 2100. a water inlet hole; 2101. a lower cavity; 2102. perforating; 211. a lower vertical guide post; 212. an upper vertical guide post; 213. a seal ring; 214. a lower guide rod; 22. an upper drive bolt; 23. a lower drive bolt; 24. an upper limiting seat; 240. an upper cavity; 2400. a spring placing groove; 241. a limiting guide rod; 242. a stop block; 25. a second upper pressure sensor; 251. a sensor placement plate; 252. an upper pressure spring; 253. a second upper ejector rod; 2531. a second stop collar; 26. a first upper pressure sensor; 261. a first upper ejector rod; 2611. a first limit ring; 27. a floating plate; 271. a balancing weight; 28. a down force sensor; 29. a lower ejector rod; 291. a lower horizontal drive plate; 30. a support; 31. a lower horizontal support plate; 32. a vertical support plate; 33. an upper horizontal support plate; 40. and a controller.
Detailed Description
As shown in fig. 1 to 3, a water pump switch for water level adjustment control comprises a water pump body 10, a water level control device 20, a bracket 30 and a controller 40; the water pump body 10 is arranged at the bottom of the water pit; the lower end of the water pump body 10 is provided with a water suction pipe 11, and the upper end is provided with a drain pipe 12; the support 30 is arranged on the ground; the controller 40 is fixed on the bracket 30; the water level control device 20 includes a cylindrical control housing 21; a vertical moving groove 210 in the shape of a cylindrical groove is formed inside the control housing 21; a water inlet 2100 opened downward is formed on the bottom surface of the vertical moving groove 210; the control shell 21 is positioned at the right end of the water pit and is vertically movably arranged at the lower side of the bracket 30; a floating plate 27 is vertically arranged in the vertical moving groove in a moving mode; a counterweight 271 is fixed on the upper end surface of the floating plate 27; the top of the vertical moving groove 210 is vertically provided with a cylindrical upper water level limiting device; a lower water level limiting device is arranged on the lower side wall of the vertical moving groove 210; the lower water level limiting device, the upper water level limiting device and the water pump body 10 are respectively electrically connected with the controller 40.
Preferably, the bracket 30 includes a lower horizontal support plate 31 fixed to the bottom surface; a pair of vertical support plates 32 distributed front and back are formed at the left end of the upper end surface of the lower horizontal support plate 31; an upper horizontal support plate 33 is formed between the upper ends of the left end faces of the pair of vertical support plates 32; the control housing 21 is vertically movably disposed at a lower side of the upper horizontal support plate 33; the controller 40 is fixed on the upper end surface of the lower horizontal support plate 31.
As shown in fig. 1, a pair of upper vertical guide posts 212 distributed back and forth is formed at the left end of the upper end surface of the control housing 21; a pair of upper vertical guide posts 212 vertically pass through the upper horizontal support plate 33; the right end of the upper horizontal support plate 33 vertically penetrates through and is screwed with an upper driving bolt 22; the lower end of the upper driving bolt 22 is pivotally connected to the upper end surface of the control housing 21.
As shown in fig. 1, a pair of lower vertical guide posts 211 distributed back and forth are formed between the upper and lower sidewalls of the vertical moving groove 210; the floating plate 27 is vertically sleeved on the pair of lower vertical guide posts 211.
As shown in fig. 1 and 2, the upper water level stopper includes a cylindrical upper stopper seat 24; an upper cavity 240 is formed inside the upper limiting seat 24; a first upper pressure sensor 26 is fixed at the center of the upper side wall of the upper cavity 240; spring seating grooves 2400 are formed at the left end and the right end of the upper sidewall of the upper cavity 240, respectively; a pair of limiting guide rods 241 distributed left and right are formed on the upper side wall of the spring accommodating groove 2400; a stop block 242 is formed at the bottom of the limiting guide rod 241; a sensor mounting plate 251 is vertically sleeved on the pair of limiting guide rods 241; a second upper pressure sensor 25 is fixed on the lower end face of the sensor mounting plate 251; the upper end of the limiting guide rod 241 is sleeved with an upper pressure spring 252; the upper end of the upper pressure spring 252 abuts against the upper side wall of the spring mounting groove 2400, and the lower end abuts against the upper end face of the sensor mounting plate 251; a pair of second upper top rods 253 and first upper top rods 261 vertically penetrate through the lower side wall of the upper limiting seat 24; the first upper ejector rod 261 faces the first upper pressure sensor 26; the second upper mandril 253 is opposite to the second upper pressure sensor 25; a second limit ring 2531 is formed at the upper part of the second upper mandril 253; a first limit ring 2611 is formed at the upper part of the first upper ejector rod 261; when the second upper lift pin 253 and the first upper lift pin 261 are at the lowermost ends, the pair of second upper pressure sensors 25 are lower than the first upper pressure sensors 26 and the lower end of the second upper lift pin 253 is lower than the lower end of the first upper lift pin 261; the second upper mandril 253 and the first upper mandril 261 have equal height; the first upper pressure sensor 26 and the second upper pressure sensor 25 are electrically connected to the controller 40.
As shown in fig. 1 and 2, a lower driving bolt 23 vertically penetrates through and is screwed on an upper side wall of the control housing 21; the upper stopper 24 is pivotally coupled to the lower end of the lower driving bolt 23.
As shown in fig. 1 and 3, lower cavities 2101 are respectively formed at the left end and the right end of the lower side wall of the vertical moving groove 210; a lower pressure sensor 28 is arranged on the bottom surface of the lower cavity 2101; an upper through hole 2102 which is opened upwards is formed in the upper side wall of the lower cavity 2101; a lower guide rod 214 is formed between the left end and the right end of the upper and lower side walls of the lower cavity 2101; a lower horizontal driving plate 291 is vertically movably arranged in the lower cavity 2101; the lower horizontal driving plate 291 vertically penetrates through and is fixed with a lower mandril 29; the lower ejector rod 29 is positioned right above the lower pressure sensor 28; the lower horizontal driving plate 291 is vertically sleeved on the pair of lower guide rods 214; a lower pressure spring 215 is sleeved on the lower guide rod 214; the upper end of the lower pressure spring 215 abuts against the lower end face of the lower horizontal driving plate 291, and the lower end abuts against the lower side wall of the lower cavity 2101; when the lower carrier rod 29 is at the uppermost end, the upper end of the lower carrier rod 29 exceeds the lower side wall surface of the vertical moving groove 210; a sealing ring 213 is arranged on the side wall of the upper perforation 2102; the lower mandril 29 vertically passes through the sealing ring 213 and is arranged in a sealing and moving way; downforce sensor 28 is electrically connected to controller 40.
The working principle of the water pump switch for water level regulation and control is as follows:
when the water level is lower than the set lowest water level, the floating plate 27 presses the pair of lower ejector rods 29 so that the lower ejector rods 29 press the lower pressure sensor 28 at the bottom, so that the lower pressure sensor 28 gives a signal to the controller 40, and the controller 40 controls the water pump body 10 to stop working; along with the rising of the water level, the floating plate 27 floats upwards, the floating plate 27 is separated from the pair of lower ejector rods 29, and the lower ejector rods 29 are separated from the lower pressure sensor 28; the down pressure sensor 28 gives a signal to the controller 40, the controller 40 controls the water pump body 10 to start operating, when the amount of water entering is too large, the floating plate 27 rises at this time, the counterweight 271 first contacts with the pair of second upper push rods 253 to drive the second upper push rods 253 to rise, the second upper push rods 253 gradually abut against the second upper pressure sensor 25, so that the second upper pressure sensor 25 gives a signal to the controller 40, the controller 40 controls the water discharge speed of the water pump body 10 to increase, if the water level is still rising, the floating plate 27 continues rising, the weight block 271 starts to contact with the first upper push rod 261 to drive the first upper push rod 261 to rise, the first upper push rod 261 gradually abuts against the first upper pressure sensor 26, so that the first upper pressure sensor 26 gives a signal to the controller 40, and the signal to the controller 40 controls the water discharge speed of the water pump body 10 to be further increased, so that the water amount in the sump is maintained at a certain level;
meanwhile, the control shell 21 can vertically move, and the upper limiting seat 24 can vertically move, so that the upper water level and the lower water level can be adjusted, and the use adaptability of the water pump is improved.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.
Claims (7)
1. The utility model provides a water pump switch of water level control which characterized in that: comprises a water pump body (10), a water level control device (20), a bracket (30) and a controller (40); the water pump body (10) is arranged at the bottom of the water pit; the lower end of the water pump body (10) is provided with a water suction pipe (11), and the upper end is provided with a drain pipe (12); the bracket (30) is arranged on the ground; the controller (40) is fixed on the bracket (30); the water level control device (20) comprises a cylindrical control shell (21); a cylindrical groove-shaped vertical moving groove (210) is formed in the control shell (21); a water inlet hole (2100) which is opened downwards is formed on the bottom surface of the vertical moving groove (210); the control shell (21) is positioned at the right end of the water pit and is vertically movably arranged at the lower side of the bracket (30); a floating plate (27) is vertically arranged in the vertical moving groove in a moving way; a balancing weight (271) is fixed on the upper end surface of the floating plate (27); the top of the vertical moving groove (210) is vertically provided with a cylindrical upper water level limiting device in a moving way; a lower water level limiting device is arranged on the lower side wall of the vertical moving groove (210); the lower water level limiting device, the upper water level limiting device and the water pump body (10) are respectively and electrically connected with the controller (40).
2. The water pump switch for water level regulation control according to claim 1, wherein: the bracket (30) comprises a lower horizontal support plate (31) fixed on the bottom surface; a pair of vertical supporting plates (32) distributed front and back are formed at the left end of the upper end surface of the lower horizontal supporting plate (31); an upper horizontal support plate (33) is formed between the upper ends of the left end surface faces of the pair of vertical support plates (32); the control shell (21) is vertically movably arranged at the lower side of the upper horizontal support plate (33); the controller (40) is fixed on the upper end surface of the lower horizontal support plate (31).
3. The water pump switch of claim 2, wherein: a pair of upper vertical guide posts (212) distributed front and back are formed at the left end of the upper end surface of the control shell (21); a pair of upper vertical guide posts (212) vertically penetrate through the upper horizontal support plate (33); the right end of the upper horizontal support plate (33) vertically penetrates through the upper horizontal support plate and is screwed with an upper driving bolt (22); the lower end of the upper driving bolt (22) is pivoted on the upper end surface of the control shell (21).
4. The water pump switch of claim 1, wherein: a pair of lower vertical guide posts (211) distributed front and back are formed between the upper side wall and the lower side wall of the vertical moving groove (210); the floating plate (27) is vertically sleeved on the pair of lower vertical guide posts (211).
5. The water pump switch of claim 1, wherein: the upper water level limiting device comprises a cylindrical upper limiting seat (24); an upper cavity (240) is formed inside the upper limiting seat (24); a first upper pressure sensor (26) is fixed at the center of the upper side wall of the upper cavity (240); spring placing grooves (2400) are respectively formed at the left end and the right end of the upper side wall of the upper cavity (240); a pair of limiting guide rods (241) distributed left and right are formed on the upper side wall of the spring placing groove (2400); a stop block (242) is formed at the bottom of the limiting guide rod (241); a sensor placing plate (251) is vertically sleeved on the pair of limiting guide rods (241); a second upper pressure sensor (25) is fixed on the lower end face of the sensor placing plate (251); the upper end of the limiting guide rod (241) is sleeved with an upper pressure spring (252); the upper end of the upper pressure spring (252) abuts against the upper side wall of the spring mounting groove (2400), and the lower end abuts against the upper end face of the sensor mounting plate (251); a pair of second upper ejector rods (253) and a first upper ejector rod (261) vertically penetrate through the lower side wall of the upper limiting seat (24); the first upper ejector rod (261) is opposite to the first upper pressure sensor (26); the second upper mandril (253) is over against the second upper pressure sensor (25); a second limit ring (2531) is formed at the upper part of the second upper ejector rod (253); a first limit ring (2611) is formed at the upper part of the first upper ejector rod (261); when the second upper lift pin (253) and the first upper lift pin (261) are at the lowermost end, the pair of second upper pressure sensors (25) is lower than the first upper pressure sensor (26) and the lower end of the second upper lift pin (253) is lower than the lower end of the first upper lift pin (261); the second upper top rod (253) and the first upper top rod (261) are equal in height; the first upper pressure sensor (26) and the second upper pressure sensor (25) are electrically connected to a controller (40).
6. The water pump switch of claim 5, wherein: a lower driving bolt (23) vertically penetrates through the upper side wall of the control shell (21) and is screwed with the upper side wall; the upper limiting seat (24) is pivoted at the lower end of the lower driving bolt (23).
7. The water pump switch of claim 1, wherein: a lower cavity (2101) is respectively formed at the left end and the right end of the lower side wall of the vertical moving groove (210); a lower pressure sensor (28) is arranged on the bottom surface of the lower cavity (2101); an upper through hole (2102) which is opened upwards is formed in the upper side wall of the lower cavity (2101); a lower guide rod (214) is formed between the left end and the right end of the upper side wall and the lower side wall of the lower cavity (2101); a lower horizontal driving plate (291) is vertically and movably arranged in the lower cavity (2101); a lower ejector rod (29) is vertically arranged on the lower horizontal driving plate (291) in a penetrating way and is fixed; the lower ejector rod (29) is positioned right above the lower pressure sensor (28); the lower horizontal driving plate (291) is vertically sleeved on the pair of lower guide rods (214); a lower pressure spring (215) is sleeved on the lower guide rod (214); the upper end of a lower pressure spring (215) abuts against the lower end face of the lower horizontal driving plate (291), and the lower end of the lower pressure spring abuts against the lower side wall of the lower cavity (2101); when the lower ejector rod (29) is positioned at the uppermost end, the upper end of the lower ejector rod (29) exceeds the lower side wall surface of the vertical moving groove (210); a sealing ring (213) is arranged on the side wall of the upper perforation (2102); the lower ejector rod (29) vertically penetrates through the sealing ring (213) and is arranged in a sealing and moving way; the depression force sensor (28) is electrically connected to the controller (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418865.4A CN114837923A (en) | 2022-04-20 | 2022-04-20 | Water pump switch controlled by water level regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418865.4A CN114837923A (en) | 2022-04-20 | 2022-04-20 | Water pump switch controlled by water level regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837923A true CN114837923A (en) | 2022-08-02 |
Family
ID=82566368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210418865.4A Pending CN114837923A (en) | 2022-04-20 | 2022-04-20 | Water pump switch controlled by water level regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837923A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738298A (en) * | 2022-04-14 | 2022-07-12 | 季冬彪 | Stable immersible pump control switch |
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| CN203453022U (en) * | 2013-08-02 | 2014-02-26 | *** | Automatic water pumping device |
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| KR20180128163A (en) * | 2017-05-23 | 2018-12-03 | 김태형 | float |
| CN211403251U (en) * | 2019-03-15 | 2020-09-01 | 赵静 | Water level automatic control adjusting device |
| CN212275037U (en) * | 2020-07-10 | 2021-01-01 | 东莞市水利勘测设计院有限公司 | Water level early warning device for water conservancy project construction survey |
| CN214660765U (en) * | 2021-01-27 | 2021-11-09 | 西安科技大学 | Pressure intelligent start-stop water pump switch |
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2022
- 2022-04-20 CN CN202210418865.4A patent/CN114837923A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203453022U (en) * | 2013-08-02 | 2014-02-26 | *** | Automatic water pumping device |
| CN206175187U (en) * | 2016-11-18 | 2017-05-17 | 新兴铸管股份有限公司 | Automatic water pumping device |
| CN106439184A (en) * | 2016-12-11 | 2017-02-22 | 湖北沛丰粮油股份有限公司 | Water outlet control switch device for dough mixer water tank |
| KR20180128163A (en) * | 2017-05-23 | 2018-12-03 | 김태형 | float |
| CN211403251U (en) * | 2019-03-15 | 2020-09-01 | 赵静 | Water level automatic control adjusting device |
| CN212275037U (en) * | 2020-07-10 | 2021-01-01 | 东莞市水利勘测设计院有限公司 | Water level early warning device for water conservancy project construction survey |
| CN214660765U (en) * | 2021-01-27 | 2021-11-09 | 西安科技大学 | Pressure intelligent start-stop water pump switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738298A (en) * | 2022-04-14 | 2022-07-12 | 季冬彪 | Stable immersible pump control switch |
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