CN109236680B - Small-size energy-conserving water pump - Google Patents
Small-size energy-conserving water pump Download PDFInfo
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- CN109236680B CN109236680B CN201811312441.XA CN201811312441A CN109236680B CN 109236680 B CN109236680 B CN 109236680B CN 201811312441 A CN201811312441 A CN 201811312441A CN 109236680 B CN109236680 B CN 109236680B
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- rotating shaft
- motor body
- protective shell
- water pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of water pump equipment, in particular to a small energy-saving water pump which comprises a filtering mechanism, a water inlet pipe, a water outlet pipe, a rotating shaft, a first protective shell, a second protective shell, a rotating assembly, a lubricating mechanism and a motor body, wherein the water inlet pipe is arranged on the water outlet pipe; according to the invention, the motor body and the rotating shaft are sealed by the added lubricating mechanism between the rotating shaft and the motor body, and the rotating shaft is limited, so that the friction force and resistance of the rotation of the rotating shaft are reduced, and the effects of energy conservation and environmental protection are achieved; offer the radiating groove of special construction in the outside of first protective housing simultaneously, strengthen holistic heat dissipation function, the life of extension motor, the impeller blade that utilizes special construction makes the mode that increases the air current through rotatory, strengthen the entering amount of water, improve the efficiency of motor, assemble the accessible in the outside of inlet tube and rotate the filter mechanism who changes filter density, the realization is extracted the inside water in different waters, the effectual inflow that increases, avoid impurity to cause the harm to the impeller blade simultaneously.
Description
Technical Field
The invention relates to the technical field of water pump equipment, in particular to a small energy-saving water pump.
Background
The water pump is a machine for conveying liquid or pressurizing liquid; the energy-saving device transmits mechanical energy or other external energy of a prime motor to liquid to increase the energy of the liquid, and is mainly used for conveying the liquid including water, oil, acid-base liquid, emulsion, suspoemulsion, liquid metal and the like; liquids, gas mixtures, and liquids containing suspended solids may also be transported.
The water pump drives it through clicking usually when using and moves, and current water pump motor heat production is big when the operation, and in order to guarantee sealed degree, and then heat dispersion is not good, and the friction is big when current water pump pivot is rotatory simultaneously, therefore the power consumption is big. In view of this, the invention provides a small-sized energy-saving water pump, which has the following characteristics:
(1) according to the small energy-saving water pump, the motor body and the rotating shaft are sealed by the added lubricating mechanism between the rotating shaft and the motor body, and the rotating shaft is limited, so that the rotating friction force and resistance of the rotating shaft are reduced, and the effects of energy conservation and environmental protection are achieved; meanwhile, the heat dissipation groove with a special structure is formed in the outer side of the first protection shell, the overall heat dissipation function is enhanced, and the service life of the motor is prolonged.
(2) According to the small energy-saving water pump, the impeller blades with special structures are rotated to increase airflow, so that the water inlet amount is increased, and the efficiency of the motor is improved.
(3) According to the small energy-saving water pump, the filtering mechanism capable of changing the filtering density through rotation is arranged on the outer side of the water inlet pipe, so that water in different water areas is extracted, the water inflow is effectively increased, meanwhile, the impeller blades are prevented from being damaged by impurities, and the resistance is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a small energy-saving water pump, wherein a lubricating mechanism is additionally arranged between a rotating shaft and a motor body to seal the motor body and the rotating shaft, and the rotating shaft is limited, so that the rotating friction force and resistance of the rotating shaft are reduced, and the effects of energy conservation and environmental protection are achieved; offer the radiating groove of special construction in the outside of first protective housing simultaneously, strengthen holistic heat dissipation function, the life of extension motor, the impeller blade who utilizes special construction makes the mode that increases the air current through the rotation, strengthen the entering amount of water, the efficiency of improvement motor, the outside at the inlet tube is assembled the accessible and is rotated the filter mechanism who changes filter density, the realization is extracted the inside water in different waters, the effectual inflow that increases, avoid impurity to cause the harm to impeller blade simultaneously, the drag reduction.
The technical scheme adopted by the invention for solving the technical problems is as follows: a small-sized energy-saving water pump comprises a filtering mechanism, a water inlet pipe, a water outlet pipe, a rotating shaft, a first protective shell, a second protective shell, a rotating assembly, a lubricating mechanism and a motor body, wherein the motor body is installed inside the first protective shell, the end part of the motor body is fixed with the lubricating mechanism, the end part of the motor body is connected with the rotating shaft, the lubricating mechanism is used for lubricating and protecting the rotating shaft, the end part of the first protective shell is connected with the second protective shell, and the inside of the second protective shell is fixedly connected with the rotating assembly; the rotating assembly is fixed at the end part of the rotating shaft, the top of the second protective shell is communicated with the water outlet pipe, the end part of the second protective shell is connected with the water inlet pipe, the end part of the second protective shell is clamped and connected with the filtering mechanism, and the filtering mechanism is used for filtering water entering the water inlet pipe.
Specifically, the filtering mechanism comprises a rotating plate, a first fixing ring, a second baffle and a second fixing ring, the second fixing ring is clamped and connected to the end part of the second protective shell, and the second baffle is fixed on the side layer of the second fixing ring in an annular array at equal intervals; the other end of second baffle is fixed first solid fixed ring, just first solid fixed ring's inboard is rotated and is connected the rotor plate.
Specifically, the filtering mechanism further comprises first baffles and movable rings, the first baffles are distributed at the edge of the rotating plate in an annular array at equal intervals, and the movable rings are fixed at the end parts of the first baffles; the movable ring is rotatably connected to the inner side of the second fixing ring.
Specifically, the outside of first protective housing is the annular array equidistance and has seted up a plurality of radiating groove, just first protective housing's bottom is fixed with the base.
Specifically, the cross-section of the radiating groove adopts an inverted omega-shaped structure, and the radiating groove is as long as the first protection shell.
Specifically, the rotating assembly comprises a rotating drum, impeller blades and fixing ribs, the rotating drum penetrates through the rotating shaft, and a plurality of impeller blades are fixed at the end part of the rotating shaft at equal intervals; the impeller blades are fixedly connected through the fixing ribs.
Specifically, the cross section of the impeller blade adopts a D-shaped structure, and the inner side of the impeller blade is hollow.
Specifically, the lubricating mechanism comprises a connecting sleeve, a sponge and a roller, the connecting sleeve is fixed at the end part of the motor body, and the inside of the connecting sleeve penetrates through the motor body; the connecting part of the connecting sleeve and the motor body is rotationally connected with a plurality of rollers, and the rollers are distributed in an annular array; the connecting sleeve is of a hollow structure, and the sponge is filled in the connecting sleeve.
Specifically, the sponge is internally soaked with lubricating oil and is in contact with the roller.
The invention has the beneficial effects that:
(1) according to the small energy-saving water pump, the motor body and the rotating shaft are sealed by the added lubricating mechanism between the rotating shaft and the motor body, and the rotating shaft is limited, so that the rotating friction force and resistance of the rotating shaft are reduced, and the effects of energy conservation and environmental protection are achieved; meanwhile, the heat dissipation groove with a special structure is formed in the outer side of the first protection shell, the overall heat dissipation function is enhanced, and the service life of the motor is prolonged.
(2) According to the small energy-saving water pump, the impeller blades with special structures are rotated to increase airflow, so that the water inlet amount is increased, and the efficiency of the motor is improved.
(3) According to the small energy-saving water pump, the filtering mechanism capable of changing the filtering density through rotation is arranged on the outer side of the water inlet pipe, so that water in different water areas is extracted, the water inflow is effectively increased, meanwhile, the impeller blades are prevented from being damaged by impurities, and the resistance is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a small energy-saving water pump according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the filter mechanism of FIG. 1;
FIG. 3 is a schematic side view of the first protective housing shown in FIG. 1;
FIG. 4 is a schematic view of the rotary assembly shown in FIG. 1;
FIG. 5 is a schematic view of the rotary assembly shown in FIG. 4;
fig. 6 is a schematic structural view of the lubrication mechanism shown in fig. 1.
In the figure: 1. the filter mechanism, 11, the rotor plate, 12, first baffle, 13, the loose collar, 14, first solid fixed ring, 15, the second baffle, 16, the solid fixed ring of second, 2, the inlet tube, 3, the outlet pipe, 4, the pivot, 5, first protective housing, 51, the radiating groove, 52, the base, 6, the second protective housing, 7, rotating assembly, 71, the rotary drum, 72, impeller blade, 73, fixed muscle, 8, lubrication mechanism, 81, adapter sleeve, 82, the sponge, 83, the gyro wheel, 9, motor body.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, the small energy-saving water pump according to the present invention includes a filtering mechanism 1, a water inlet pipe 2, a water outlet pipe 3, a rotating shaft 4, a first protective housing 5, a second protective housing 6, a rotating assembly 7, a lubricating mechanism 8 and a motor body 9, wherein the motor body 9 is installed inside the first protective housing 5, the lubricating mechanism 8 is fixed at an end of the motor body 9, the rotating shaft 4 is connected to an end of the motor body 9, the lubricating mechanism 8 is used for lubricating and protecting the rotating shaft 4, the end of the first protective housing 5 is connected to the second protective housing 6, and the rotating assembly 7 is fixedly connected inside the second protective housing 6; the rotating component 7 is fixed on the end part of the rotating shaft 4, the top of the second protective shell 6 is communicated with the water outlet pipe 3, the end part of the second protective shell 6 is connected with the water inlet pipe 2, the end part of the second protective shell 6 is clamped and connected with the filtering mechanism 1, and the filtering mechanism 1 is used for filtering water entering the water inside the water inlet pipe 2.
Specifically, as shown in fig. 1-2, the filter mechanism 1 includes a rotating plate 11, a first fixing ring 14, a second baffle 15 and a second fixing ring 16, the second fixing ring 16 is connected to an end of the second protective housing 6 in a snap-fit manner, and the second baffle 15 is fixed on a side layer of the second fixing ring 16 in an annular array at equal intervals; the other end of the second baffle 15 is fixed to the first fixing ring 14, and the inner side of the first fixing ring 14 is rotatably connected to the rotating plate 11.
Specifically, as shown in fig. 1-2, the filtering mechanism 1 further includes a first baffle 12 and a movable ring 13, the first baffle 12 is distributed at the edge of the rotating plate 11 in an annular array at equal intervals, and the end of the first baffle 12 fixes the movable ring 13; the movable ring 13 is rotatably coupled to an inner side of the second fixed ring 16.
Specifically, as shown in fig. 1 to 3, a plurality of heat dissipation grooves 51 are equidistantly formed in the outer side of the first protective housing 5 in an annular array, and a base 52 is fixed at the bottom of the first protective housing 5.
Specifically, as shown in fig. 1 to 3, the cross section of the heat dissipation groove 51 adopts an inverted Ω structure, and the heat dissipation groove 51 has the same length as the first protective housing 5.
Specifically, as shown in fig. 1 and 4, the rotating assembly 7 includes a rotating cylinder 71, impeller blades 72 and fixing ribs 73, the interior of the rotating cylinder 71 penetrates through the rotating shaft 4, and a plurality of impeller blades 72 are fixed to the end of the rotating shaft 4 at equal intervals; the impeller blades 72 are fixedly connected with each other through the fixing ribs 73.
Specifically, as shown in fig. 5, the impeller blade 72 has a D-shaped cross section, and the inner side of the impeller blade 72 is hollow.
Specifically, as shown in fig. 1 and 6, the lubricating mechanism 8 includes a connecting sleeve 81, a sponge 82 and a roller 83, the connecting sleeve 81 is fixed at an end of the motor body 9, and the inside of the connecting sleeve 81 penetrates through the motor body 9; the connecting part of the connecting sleeve 81 and the motor body 9 is rotatably connected with a plurality of rollers 83, and the rollers 83 are distributed in an annular array; the connecting sleeve 81 is hollow, and the sponge 82 is filled in the connecting sleeve 81.
Specifically, as shown in fig. 1 and 6, the sponge 82 is impregnated with lubricating oil, and the sponge 82 is in contact with the roller 83.
(1) Before using, rotate rotor plate 11, rotor plate 11 drives first baffle 12 swivelling movement, makes first baffle 12 stagger with second baffle 15, carries out the increase of density to filter mechanism 1, uses in the more less 1 waters of impurity, and when water was comparatively limpid, rotatable rotor plate 11 makes second baffle 15 and the inside that more water of being convenient for of first baffle 12 coincidence entered into inlet tube 2 through filter mechanism 1.
(2) When using, motor body 9 arranges the aquatic in, increase the area of contact with water through radiating groove 51, can realize improving motor body 9's heat radiating area, at first with outlet pipe 3 connection water pipe at whole during operation, so that drawing forth of water, open motor body 9, it is rotatory to utilize motor body 9 to drive pivot 4, pivot 4 is sealed between pivot 4 and motor body 9 in rotatory roll realization through with lubricating mechanism 8, it rotates to drive gyro wheel 83 when pivot 4 is rotatory, gyro wheel 83 is rotatory and compress the continuous lubrication of sponge messenger's inside lubricating oil, reduce pivot 4 and with lubricating mechanism 8's frictional force, pivot 4 drives the rotatory negative pressure that forms of impeller blade 72 through the rotation simultaneously, through the water that will take turns to through inlet tube 2 entering then discharge through outlet pipe 3.
According to the invention, the lubricating mechanism 8 is additionally arranged between the rotating shaft 4 and the motor body 9 to seal the motor body 9 and the rotating shaft 4, and limit the rotating shaft 4, so that the friction force and resistance of the rotating shaft 4 in rotation are reduced, and the effects of energy conservation and environmental protection are achieved; meanwhile, the heat dissipation groove 51 with a special structure is formed in the outer side of the first protection shell 5, so that the overall heat dissipation function is enhanced, and the service life of the motor is prolonged; the impeller blades 72 with special structures are rotated to increase airflow, so that the water inlet amount is increased, and the efficiency of the motor is improved; the outside at inlet tube 2 is assembled the accessible and is rotated filter structure 1 that changes filter density, realizes extracting the inside water in different waters, and effectual increaseing inflow avoids impurity to cause the harm to impeller blade 72 simultaneously, reduces the resistance.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A small-size energy-conserving water pump which characterized in that: the water-saving lubricating device comprises a filtering mechanism (1), a water inlet pipe (2), a water outlet pipe (3), a rotating shaft (4), a first protective shell (5), a second protective shell (6), a rotating component (7), a lubricating mechanism (8) and a motor body (9), wherein the motor body (9) is installed inside the first protective shell (5), the lubricating mechanism (8) is fixed at the end part of the motor body (9), the rotating shaft (4) is connected at the end part of the motor body (9), the lubricating mechanism (8) is used for lubricating and protecting the rotating shaft (4), the end part of the first protective shell (5) is connected with the second protective shell (6), and the rotating component (7) is fixedly connected inside the second protective shell (6); the rotating assembly (7) is fixed at the end part of the rotating shaft (4), the top of the second protective shell (6) is communicated with the water outlet pipe (3), the end part of the second protective shell (6) is connected with the water inlet pipe (2), the end part of the second protective shell (6) is connected with the filtering mechanism (1) in a clamping manner, and the filtering mechanism (1) is used for filtering water entering the water inlet pipe (2);
the filtering mechanism (1) comprises first baffle plates (12) and movable rings (13), the first baffle plates (12) are distributed at the edge of the rotating plate (11) in an annular array at equal intervals, and the end parts of the first baffle plates (12) are fixed on the movable rings (13); the movable ring (13) is rotatably connected to the inner side of the second fixed ring (16).
2. The small-sized energy-saving water pump according to claim 1, characterized in that: the filtering mechanism (1) comprises a rotating plate (11), a first fixing ring (14), a second baffle (15) and a second fixing ring (16), the second fixing ring (16) is connected to the end of the second protective shell (6) in a clamping mode, and the second baffle (15) is fixed on the side layer annular array of the second fixing ring (16) at equal intervals; the other end of the second baffle (15) is fixed on the first fixing ring (14), and the inner side of the first fixing ring (14) is rotatably connected with the rotating plate (11).
3. The small-sized energy-saving water pump according to claim 1, characterized in that: the outside of first protective housing (5) is the annular array equidistance and has seted up a plurality of radiating groove (51), just the bottom of first protective housing (5) is fixed with base (52).
4. The small-sized energy-saving water pump according to claim 3, characterized in that: the section of the heat dissipation groove (51) adopts an inverted omega-shaped structure, and the heat dissipation groove (51) is as long as the first protection shell (5).
5. The small-sized energy-saving water pump according to claim 1, characterized in that: the rotating assembly (7) comprises a rotating drum (71), impeller blades (72) and fixing ribs (73), the rotating drum (71) penetrates through the rotating shaft (4), and a plurality of impeller blades (72) are fixed at the end part of the rotating shaft (4) at equal intervals; the impeller blades (72) are fixedly connected through the fixing ribs (73).
6. The small-sized energy-saving water pump according to claim 5, characterized in that: the cross section of the impeller blade (72) adopts a D-shaped structure, and the inner side of the impeller blade (72) is hollow.
7. The small-sized energy-saving water pump according to claim 1, characterized in that: the lubricating mechanism (8) comprises a connecting sleeve (81), a sponge (82) and a roller (83), the connecting sleeve (81) is fixed at the end part of the motor body (9), and the inside of the connecting sleeve (81) penetrates through the motor body (9); the connecting part of the connecting sleeve (81) and the motor body (9) is rotatably connected with a plurality of rollers (83), and the rollers (83) are distributed in an annular array; the connecting sleeve (81) is of a hollow structure, and the sponge (82) is filled in the connecting sleeve (81).
8. The small-sized energy-saving water pump according to claim 7, characterized in that: the sponge (82) is internally soaked with lubricating oil, and the sponge (82) is in contact with the roller (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811312441.XA CN109236680B (en) | 2018-11-06 | 2018-11-06 | Small-size energy-conserving water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811312441.XA CN109236680B (en) | 2018-11-06 | 2018-11-06 | Small-size energy-conserving water pump |
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| Publication Number | Publication Date |
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| CN109236680A CN109236680A (en) | 2019-01-18 |
| CN109236680B true CN109236680B (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811312441.XA Active CN109236680B (en) | 2018-11-06 | 2018-11-06 | Small-size energy-conserving water pump |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397601B (en) * | 2019-08-25 | 2020-07-17 | 上海海德隆流体设备制造有限公司 | Water supply pump device for urban life |
| CN112302948A (en) * | 2020-10-15 | 2021-02-02 | 广东中科壹家科技有限公司 | Protection device for submerged pump |
| CN114263618B (en) * | 2021-12-27 | 2024-05-10 | 江苏维尔特泵业有限公司 | Energy-saving heat-dissipation type high-pressure hot water circulating pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687777U (en) * | 2010-03-30 | 2010-12-29 | 南通市华冠电器有限公司 | Drainage pump filtering plug |
| CN201723493U (en) * | 2010-07-09 | 2011-01-26 | 南通江华机械有限公司 | Internal-combustion engine cooling water pump adopting flexible blades |
| CN202152737U (en) * | 2011-06-28 | 2012-02-29 | 张春明 | Hydraulic submersible pump |
| CN205225864U (en) * | 2015-10-29 | 2016-05-11 | 重庆岷龙机械制造有限公司 | Heat dissipation mechanism of immersible pump |
| CN205225758U (en) * | 2015-11-12 | 2016-05-11 | 宏斯机械（上海）有限公司 | Special water pump of energy -efficient fire control |
| CN107869466B (en) * | 2017-11-07 | 2019-06-21 | 唐山龙泰辰实业股份有限公司 | A kind of water pump being conveniently replaceable filter screen |
| CN207246029U (en) * | 2017-11-14 | 2018-04-17 | 芜湖长江泵业有限公司 | A kind of dredge pump with dirt cutting and grinding |
| CN207892851U (en) * | 2017-12-26 | 2018-09-21 | 昆山隆中麦士格瑞汽车部件有限公司 | The miniature energy-saving water pump structure synchronized based on magnetic induction |
| CN108443163A (en) * | 2018-05-18 | 2018-08-24 | 高邮环流泵业有限公司 | A kind of dredge pump easy to use |
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Effective date of registration: 20200622 Address after: The city of Wenling City Industrial Zone, Daxi Zhen Shan Taizhou city in Zhejiang province 317500 Applicant after: Lewei Pump Co.,Ltd. Address before: 518057 south tower TP-Link Technology Co Ltd, 5 Nanshan District science and Technology Park, Shenzhen science and Technology Park, Guangdong Applicant before: Chang Kanghua |
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