CN212984053U - Secondary water supply device with automatic water diversion function - Google Patents
Secondary water supply device with automatic water diversion function Download PDFInfo
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- CN212984053U CN212984053U CN202021443337.7U CN202021443337U CN212984053U CN 212984053 U CN212984053 U CN 212984053U CN 202021443337 U CN202021443337 U CN 202021443337U CN 212984053 U CN212984053 U CN 212984053U
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- 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
- Y02A20/152—Water filtration
Abstract
The utility model discloses a secondary water supply installation with automatic diversion function, comprising a base plate, bottom plate top outer wall has the water tank through the bolt fastening, water tank top outer wall has disinfectant pipe through the bolt fastening, disinfectant pipe outer wall has the protection casing through the bolt fastening, bottom plate top outer wall has the mount through the bolt fastening, mount top outer wall has the water pump through the bolt fastening, water tank one side outer wall has communicating pipe through the bolt fastening, communicating pipe one end is connected on the water pump water inlet, bottom plate top outer wall has the secondary feed water tank through the bolt fastening. The utility model discloses a be provided with water purifier, filter screen, active carbon adsorption layer and biological reaction layer, can carry out multiple filtration to the drinking water of coming from the water tank extraction to the biological reaction layer can produce the reaction to the harmful substance in the drinking water, makes the secondary water supply be difficult for being polluted, thereby effectively improves the quality of drinking water.
Description
Technical Field
The utility model relates to a secondary water supply technical field especially relates to a secondary water supply installation with automatic diversion function.
Background
The secondary water supply is a form that a unit or an individual stores and pressurizes urban public water supply or self-built facility water supply, and supplies water to users or self-use through a pipeline. The secondary water supply is mainly established for compensating the pressure shortage of the municipal water supply pipeline and ensuring the water consumption of dwellings and livelihoods in high-rise people. Whether the secondary water supply facility is built, designed and constructed according to the regulations or not is directly related to the quality of secondary water supply, water pressure and water supply safety, and is closely related to the normal and stable life of people.
Compare with raw water supply, the quality of water of secondary water supply is changeed and is polluted, and current secondary water supply device can remain the foreign particle at the during operation in the water tank, can not obtain effective timely processing, can lead to causing the influence to the quality of drinking water when the secondary water supply.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a secondary water supply device with an automatic water diversion function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a secondary water supply device with an automatic water diversion function comprises a base plate, wherein a water tank is fixed on the outer wall of the top of the base plate through bolts, a disinfectant pipe is fixed on the outer wall of the top of the water tank through bolts, a protective cover is fixed on the outer wall of the disinfectant pipe through bolts, a fixing frame is fixed on the outer wall of the top of the base plate through bolts, a water pump is fixed on the outer wall of the top of the fixing frame through bolts, a communicating pipe is fixed on the outer wall of one side of the water tank through bolts, one end of the communicating pipe is connected to a water inlet of the water pump, a secondary water supply tank is fixed on the outer wall of the top of the base plate through bolts, a water purifier is fixed on the outer wall of one side of the secondary water supply tank through bolts, a water outlet of the water pump is connected with a water discharge, the utility model discloses a biological reaction layer, including secondary water supply tank, baffle, water outlet pipe, water level sensor, controller, filter screen, active carbon adsorption layer and bioreaction layer, secondary water supply tank top outer wall has the overhead tank through the bolt fastening, secondary water supply tank one side outer wall has the outlet pipe through the bolt fastening, outlet pipe one end is connected in the overhead tank bottom, secondary water supply tank both sides inner wall has same baffle through the bolt fastening, baffle inner wall intercommunication has the drainage tube of L shape structure, and the drainage tube top is connected on the outlet pipe bottom, secondary water supply tank one side inner wall has level sensor through the bolt fastening, level sensor is connected with the controller through the signal line, secondary water supply tank one side inner wall and baffle one side outer wall have filter screen, active carbon adsorption layer and bioreaction layer through the bolt fastening respectively, filter.
Preferably, the outer wall of one side of the water tank is fixedly provided with a water inlet pipe and a filter through bolts, the water inlet pipe is communicated with the filter, and the outer wall of the bottom of the water tank is fixedly provided with a blow-off pipe through bolts.
Preferably, the inner walls of the two sides of the water tank are fixed with the same transverse plate through bolts, the outer walls of the two sides of the transverse plate are respectively provided with two flow guide holes, the outer wall of the top of the transverse plate is fixed with a flow guide plate with a triangular structure through bolts, the top end of the flow guide plate is positioned under the disinfectant pipe, and the transverse plate is positioned above the water inlet pipe.
Preferably, diaphragm bottom outer wall has electric telescopic handle through the bolt fastening, and the electric telescopic handle piston rod is connected with the fixed plate, fixed plate bottom outer wall has protecting frame and motor through the bolt fastening, the motor is located inside the protecting frame, and motor output shaft has the axis of rotation through the coupling joint.
Preferably, the axis of rotation outer wall has the dead lever that the equidistance distributes through the bolt fastening, and dead lever one end all has clean brush through the bolt fastening, clean brush laminating is connected on the water tank inner wall.
Preferably, the axis of rotation outer wall passes through the dwang that the bolt fastening has the equidistance to distribute, and dwang one end all has the scraper blade through the bolt fastening, scraper blade one side outer wall has the foam-rubber cushion through the bolt fastening, and the foam-rubber cushion laminating is connected on the water tank inner wall.
Preferably, the water pump, the electric telescopic rod and the motor are all connected with a switch through wires, and the switch is connected to the controller through wires.
The utility model has the advantages that:
1. this secondary water supply installation with automatic diversion function, through being provided with disinfectant pipe, the guide plate, the diaphragm, the water conservancy diversion hole, electric telescopic handle, the fixed plate, including a motor, an end cap, a controller, and a cover plate, the axis of rotation, dead lever and clean brush, can carry out omnidirectional cleaning and disinfection to the inner wall of water tank, the accumulational phenomenon of impurity granule appears in avoiding the water tank, perhaps through the disinfectant pipe that sets up, the guide plate, the diaphragm, the water conservancy diversion hole, electric telescopic handle, the fixed plate, including a motor, the axis of rotation, the dwang, scraper blade and foam-rubber cushion, also can reach same cleaning and disinfection effect, sewage after the washing passes through the blow off pipe and discharges, cleanliness in the water tank has been guaranteed.
2. This secondary water supply device with automatic diversion function through being provided with water purifier, filter screen, active carbon adsorption layer and bioreaction layer, can carry out multiple filtration to the drinking water of coming from the water tank extraction to the bioreaction layer can be to the harmful substance production reaction in the drinking water, makes the secondary water supply be difficult for being polluted, thereby effectively improves the quality of drinking water.
3. This secondary water supply device with automatic diversion function through being provided with overhead tank and outlet pipe, then the size of adjustment overhead tank pressure to supply water to each floor, make the dwell time of drinking water in the device shorten as far as possible, avoid influencing the quality of water of drinking water.
Drawings
Fig. 1 is a schematic perspective view of a secondary water supply device with an automatic water diversion function according to the present invention;
fig. 2 is a schematic structural view of a secondary water supply device with an automatic water diversion function according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a secondary water supply device with an automatic water diversion function according to an embodiment of the present invention.
In the figure: 1 bottom plate, 2 water tanks, 3 disinfectant pipes, 4 protection casings, 5 communicating pipes, 6 fixed frames, 7 water pumps, 8 secondary water supply tanks, 9 water purifiers, 10 water supply pipes, 11 overhead tank, 12 outlet pipes, 13 level sensor, 14 baffles, 15 filter screens, 16 activated carbon adsorption layers, 17 biological reaction layers, 18 filters, 19 blow off pipes, 20 transverse plates, 21 water conservancy diversion hole, 22 guide plates, 23 electric telescopic rod, 24 fixed plates, 25 motors, 26 axes of rotation, 27 fixed rods, 28 clean brushes, 29 dwang, 30 scraper blades, 31 foam-rubber cushion.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-2, a secondary water supply device with automatic water diversion function comprises a bottom plate 1, a water tank 2 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a disinfectant tube 3 is fixed on the outer wall of the top of the water tank 2 through bolts, a protective cover 4 is fixed on the outer wall of the disinfectant tube 3 through bolts, a fixing frame 6 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a water pump 7 is fixed on the outer wall of the top of the fixing frame 6 through bolts, a communicating tube 5 is fixed on the outer wall of one side of the water tank 2 through bolts, one end of the communicating tube 5 is connected to the water inlet of the water pump 7, a secondary water supply tank 8 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a water purifier 9 is fixed on the outer wall of one side of the secondary water supply tank 8 through bolts, the model of the water purifier, one end of a water feeding pipe 10 is fixed on the outer wall of the top of the water purifier 9, the outer wall of the top of the secondary water supply tank 8 is fixed with a pressure tank 11 through a bolt, the outer wall of one side of the secondary water supply tank 8 is fixed with a water outlet pipe 12 through a bolt, one end of the water outlet pipe 12 is connected to the bottom of the pressure tank 11, the inner walls of two sides of the secondary water supply tank 8 are fixed with a same partition 14 through bolts, the inner wall of the partition 14 is communicated with a drainage pipe with an L-shaped structure, the top end of the drainage pipe is connected to the bottom of the water outlet pipe 12, the inner wall of one side of the secondary water supply tank 8 is fixed with a water level sensor 13 through a bolt, the water level sensor 13 is connected with a controller through a signal line, the inner wall of one side of the secondary water supply tank 8 and the outer wall of one side of the partition 14 are respectively, can carry out multiple filtration on drinking water extracted from the water tank 2, the outer wall of one side of the water tank 2 is fixed with a water inlet pipe and a filter 18 through bolts, the water inlet pipe is communicated with the filter 18, the model of the filter 18 is GL41-16, the outer wall of the bottom of the water tank 2 is fixed with a blow-off pipe 19 through bolts, the cleaned sewage is discharged through the blow-off pipe 19, the inner walls of the two sides of the water tank 2 are fixed with a same transverse plate 20 through bolts, the outer walls of the two sides of the transverse plate 20 are respectively provided with two flow guide holes 21, the outer wall of the top of the transverse plate 20 is fixed with a flow guide plate 22 with a triangular structure through bolts, the top end of the flow guide plate 22 is positioned under the disinfectant pipe 3, the transverse plate 20 is positioned above the water inlet pipe, the outer wall of the bottom of the transverse plate 20, inside motor 25 is located the protective frame, and motor 25 output shaft has axis of rotation 26 through the coupling joint, water pump 7, electric telescopic handle 23 and motor 25 all are connected with the switch through the wire, and the switch passes through the wire and connects on the controller, the controller model is YKZ7280JA, axis of rotation 26 outer wall has the dead lever 27 that the equidistance distributes through the bolt fastening, and dead lever 27 one end all has cleaning brush 28 through the bolt fastening, the laminating of cleaning brush 28 is connected on water tank 2 inner wall, can carry out omnidirectional cleaning and disinfection to the inner wall of water tank 2.
The working principle is as follows: during the use, the drinking water enters into inside the water tank 2 through the inlet tube, in this in-process, carry out preliminary filtration to the drinking water through the filter 18 that sets up, then through the communicating pipe 5 that sets up, water pump 7 and upper hose 10, draw the drinking water to inside the secondary supply tank 8, through being provided with water purifier 9, filter screen 15, activated carbon adsorption layer 16 and biological reaction layer 17, can carry out multiple filtration to the drinking water of drawing from the water tank 2, and biological reaction layer 17 can react to the harmful substance in the drinking water, make the secondary supply difficult contaminated, thereby effectively improve the quality of drinking water, then the size of adjustment pressure tank 11 pressure, supply water to each floor through outlet pipe 12, make the dwell time of drinking water in the device shorten as far as possible, avoid influencing the quality of drinking water, when cleaning inside the water tank 2, through disinfection liquid pipe 3 to the inside appropriate amount antiseptic solution that injects of water tank 2, the antiseptic solution passes through guide plate 22 and water conservancy diversion hole 21 and flows to 2 inner walls of water tank on, then electric telescopic handle 23 through setting up, fixed plate 24, motor 25, axis of rotation 26, dead lever 27 and clean brush 28, can carry out the omnidirectional washing and disinfecting to 2 inner walls of water tank, avoid appearing the accumulational phenomenon of impurity granule in the water tank 2, the sewage after wasing passes through blow off pipe 19 and discharges, the cleanliness in the water tank 2 has been guaranteed, the pollution of quality of water has been avoided from the source.
Example two
Referring to fig. 1 and 3, a secondary water supply device with an automatic water diversion function comprises a bottom plate 1, a water tank 2 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a disinfectant tube 3 is fixed on the outer wall of the top of the water tank 2 through bolts, a protective cover 4 is fixed on the outer wall of the disinfectant tube 3 through bolts, a fixing frame 6 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a water pump 7 is fixed on the outer wall of the top of the fixing frame 6 through bolts, a communicating tube 5 is fixed on the outer wall of one side of the water tank 2 through bolts, one end of the communicating tube 5 is connected to a water inlet of the water pump 7, a secondary water supply tank 8 is fixed on the outer wall of the top of the bottom plate 1 through bolts, a water purifier 9 is fixed on the outer wall of one side of the secondary water supply tank 8 through bolts, the model of the water, one end of a water feeding pipe 10 is fixed on the outer wall of the top of the water purifier 9, the outer wall of the top of the secondary water supply tank 8 is fixed with a pressure tank 11 through a bolt, the outer wall of one side of the secondary water supply tank 8 is fixed with a water outlet pipe 12 through a bolt, one end of the water outlet pipe 12 is connected to the bottom of the pressure tank 11, the inner walls of two sides of the secondary water supply tank 8 are fixed with a same partition 14 through bolts, the inner wall of the partition 14 is communicated with a drainage pipe with an L-shaped structure, the top end of the drainage pipe is connected to the bottom of the water outlet pipe 12, the inner wall of one side of the secondary water supply tank 8 is fixed with a water level sensor 13 through a bolt, the water level sensor 13 is connected with a controller through a signal line, the inner wall of one side of the secondary water supply tank 8 and the outer wall of one side of the partition 14 are respectively, can carry out multiple filtration on drinking water extracted from the water tank 2, the outer wall of one side of the water tank 2 is fixed with a water inlet pipe and a filter 18 through bolts, the water inlet pipe is communicated with the filter 18, the model of the filter 18 is GL41-16, the outer wall of the bottom of the water tank 2 is fixed with a blow-off pipe 19 through bolts, the cleaned sewage is discharged through the blow-off pipe 19, the inner walls of the two sides of the water tank 2 are fixed with a same transverse plate 20 through bolts, the outer walls of the two sides of the transverse plate 20 are respectively provided with two flow guide holes 21, the outer wall of the top of the transverse plate 20 is fixed with a flow guide plate 22 with a triangular structure through bolts, the top end of the flow guide plate 22 is positioned under the disinfectant pipe 3, the transverse plate 20 is positioned above the water inlet pipe, the outer wall of the bottom of the transverse plate 20, inside motor 25 is located the protective frame, and there is axis of rotation 26 motor 25 output shaft through the coupling joint, water pump 7, electric telescopic handle 23 and motor 25 all are connected with the switch through the wire, and the switch passes through the wire and connects on the controller, the controller model is YKZ7280JA, 26 outer walls of axis of rotation have the dwang 29 of equidistance distribution through the bolt fastening, and dwang 29 one end all has scraper blade 30 through the bolt fastening, 30 one side outer wall of scraper blade has foam-rubber cushion 31 through the bolt fastening, and the laminating of foam-rubber cushion 31 is connected on 2 inner walls of water tank, can carry out omnidirectional cleaning and disinfection to the inner wall of water tank 2.
The working principle is as follows: during the use, the drinking water enters into inside the water tank 2 through the inlet tube, in this in-process, carry out preliminary filtration to the drinking water through the filter 18 that sets up, then through the communicating pipe 5 that sets up, water pump 7 and upper hose 10, draw the drinking water to inside the secondary supply tank 8, through being provided with water purifier 9, filter screen 15, activated carbon adsorption layer 16 and biological reaction layer 17, can carry out multiple filtration to the drinking water of drawing from the water tank 2, and biological reaction layer 17 can react to the harmful substance in the drinking water, make the secondary supply difficult contaminated, thereby effectively improve the quality of drinking water, then the size of adjustment pressure tank 11 pressure, supply water to each floor through outlet pipe 12, make the dwell time of drinking water in the device shorten as far as possible, avoid influencing the quality of drinking water, when cleaning inside the water tank 2, through disinfection liquid pipe 3 to the inside appropriate amount antiseptic solution that pours into of water tank 2, the antiseptic solution passes through guide plate 22 and water conservancy diversion hole 21 and flows to 2 inner walls of water tank on, then electric telescopic handle 23 through setting up, fixed plate 24, motor 25, axis of rotation 26, dwang 29, scraper blade 30 and foam-rubber cushion 31, can carry out omnidirectional cleaning and disinfection to the inner wall of water tank 2, avoid appearing the accumulational phenomenon of impurity granule in the water tank 2, the sewage after wasing passes through blow off pipe 19 and discharges, the cleanliness in the water tank 2 has been guaranteed, the pollution of quality of water has been avoided from the source.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The secondary water supply device with the automatic water diversion function comprises a bottom plate (1) and is characterized in that a water tank (2) is fixed on the outer wall of the top of the bottom plate (1), a disinfectant pipe (3) is fixed on the outer wall of the top of the water tank (2), a protective cover (4) is fixed on the outer wall of the disinfectant pipe (3), a fixing frame (6) is fixed on the outer wall of the top of the bottom plate (1), a water pump (7) is fixed on the outer wall of the top of the fixing frame (6), a communicating pipe (5) is fixed on the outer wall of one side of the water tank (2), one end of the communicating pipe (5) is connected to a water inlet of the water pump (7), a secondary water supply tank (8) is fixed on the outer wall of the top of the bottom plate (1), a water purifier (9) is fixed on the outer wall of one side of the secondary water supply, secondary water supply tank (8) top outer wall is fixed with water pipe (10), water pipe (10) one end is fixed on water purifier (9) top outer wall, secondary water supply tank (8) top outer wall is fixed with overhead tank (11), secondary water supply tank (8) one side outer wall is fixed with outlet pipe (12), outlet pipe (12) one end is connected in overhead tank (11) bottom, secondary water supply tank (8) both sides inner wall is fixed with same baffle (14), baffle (14) inner wall intercommunication has the drainage tube of L shape structure, and the drainage tube top is connected on outlet pipe (12) bottom, secondary water supply tank (8) one side inner wall is fixed with level sensor (13), level sensor (13) are connected with the controller through the signal line, secondary water supply tank (8) one side inner wall and baffle (14) one side outer wall are fixed with filter screen (15) respectively, Active carbon adsorption layer (16) and biological reaction layer (17), filter screen (15) and active carbon adsorption layer (16) all are located biological reaction layer (17) top, and active carbon adsorption layer (16) are located between filter screen (15) and biological reaction layer (17).
2. The secondary water supply device with the automatic water diversion function according to claim 1, wherein a water inlet pipe and a filter (18) are fixed on the outer wall of one side of the water tank (2), the water inlet pipe is communicated with the filter (18), and a sewage discharge pipe (19) is fixed on the outer wall of the bottom of the water tank (2).
3. The secondary water supply device with the automatic water diversion function according to claim 2, wherein the same transverse plate (20) is fixed on the inner walls of the two sides of the water tank (2), the two outer walls of the two sides of the transverse plate (20) are respectively provided with two diversion holes (21), the outer wall of the top of the transverse plate (20) is fixed with a diversion plate (22) with a triangular structure, the top end of the diversion plate (22) is positioned under the disinfectant pipe (3), and the transverse plate (20) is positioned above the water inlet pipe.
4. The secondary water supply device with the automatic water diversion function according to claim 3, wherein an electric telescopic rod (23) is fixed on the outer wall of the bottom of the transverse plate (20), a fixed plate (24) is connected to a piston rod of the electric telescopic rod (23), a protective frame and a motor (25) are fixed on the outer wall of the bottom of the fixed plate (24), the motor (25) is located inside the protective frame, and a rotating shaft (26) is connected to an output shaft of the motor (25).
5. The secondary water supply device with the automatic water diversion function according to claim 4, wherein fixing rods (27) are fixed on the outer wall of the rotating shaft (26) and are distributed at equal intervals, and cleaning brushes (28) are fixed at one ends of the fixing rods (27), and the cleaning brushes (28) are attached to the inner wall of the water tank (2).
6. The secondary water supply device with the automatic water diversion function according to claim 4, wherein rotating rods (29) are fixed on the outer wall of the rotating shaft (26) and distributed at equal intervals, scrapers (30) are fixed on one ends of the rotating rods (29), sponge pads (31) are fixed on the outer wall of one side of each scraper (30), and the sponge pads (31) are attached to the inner wall of the water tank (2).
7. The secondary water supply device with the automatic water diversion function according to claim 4, wherein the water pump (7), the electric telescopic rod (23) and the motor (25) are connected with a switch through leads, and the switch is connected to the controller through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443337.7U CN212984053U (en) | 2020-07-21 | 2020-07-21 | Secondary water supply device with automatic water diversion function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443337.7U CN212984053U (en) | 2020-07-21 | 2020-07-21 | Secondary water supply device with automatic water diversion function |
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| CN212984053U true CN212984053U (en) | 2021-04-16 |
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| CN202021443337.7U Active CN212984053U (en) | 2020-07-21 | 2020-07-21 | Secondary water supply device with automatic water diversion function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431132A (en) * | 2021-07-13 | 2021-09-24 | 浙江融乐环境科技有限公司 | Environment-friendly corrosion-resistant constant-pressure water supply equipment |
| CN113737893A (en) * | 2021-09-28 | 2021-12-03 | 乔庆 | Energy-saving water supply device |
| CN113737895A (en) * | 2021-09-17 | 2021-12-03 | 沈阳政桥智能科技发展有限公司 | Ultra-long-range constant pressure water supply device |
| CN113756395A (en) * | 2021-09-08 | 2021-12-07 | 福建省斯特尔智能化供水设备有限公司 | Intelligent adjustment's secondary water supply system |
-
2020
- 2020-07-21 CN CN202021443337.7U patent/CN212984053U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431132A (en) * | 2021-07-13 | 2021-09-24 | 浙江融乐环境科技有限公司 | Environment-friendly corrosion-resistant constant-pressure water supply equipment |
| CN113756395A (en) * | 2021-09-08 | 2021-12-07 | 福建省斯特尔智能化供水设备有限公司 | Intelligent adjustment's secondary water supply system |
| CN113737895A (en) * | 2021-09-17 | 2021-12-03 | 沈阳政桥智能科技发展有限公司 | Ultra-long-range constant pressure water supply device |
| CN113737893A (en) * | 2021-09-28 | 2021-12-03 | 乔庆 | Energy-saving water supply device |
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