CN109989924B - Energy-saving centrifugal water pump - Google Patents
Energy-saving centrifugal water pump Download PDFInfo
- Publication number
- CN109989924B CN109989924B CN201910415974.9A CN201910415974A CN109989924B CN 109989924 B CN109989924 B CN 109989924B CN 201910415974 A CN201910415974 A CN 201910415974A CN 109989924 B CN109989924 B CN 109989924B
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- Prior art keywords
- water inlet
- water
- pump
- reversing
- sleeve
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Classifications
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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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
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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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
Abstract
The invention discloses an energy-saving centrifugal water pump, which comprises a pump shell, a motor coaxially connected to one end of the pump shell, and a centrifugal water wheel rotatably arranged in the pump shell; the middle of one end of the pump shell is connected with a first water inlet joint, and the side wall of the pump shell is connected with a first water outlet joint and a second water outlet joint; one end of the pump shell, which is far away from the motor, is provided with a water inlet sleeve, and the side wall of the water inlet sleeve is connected with a second water inlet joint; a first water inlet channel and a second water inlet channel are formed on the pump shell; a reversing sleeve is rotatably arranged on the periphery of the centrifugal water wheel in the pump shell, a water inlet switching port communicated with the first water inlet channel or the second water inlet channel is formed at the bottom of the reversing sleeve, and a water outlet switching port communicated with the first water outlet connector or the second water outlet connector is formed in the side wall of the reversing sleeve. The centrifugal water pump can realize the switching of the fluid pumping direction by controlling the positive and negative rotation and the rotating speed of the motor, namely the centrifugal water pump realizes the functions of two independent water pumps.
Description
Technical Field
The invention belongs to the field of water pumps, and particularly relates to a centrifugal water pump structure capable of switching pumping directions.
Background
The water pump in the prior art can only pump fluid in a fixed direction, and for a filtering system with a ceramic filter, when the ceramic filter is backwashed, reverse water pressure is needed to reversely flush out the blockage blocked in the pores of the ceramic filter plate, so that the effect of prolonging the service life of the ceramic filter plate is achieved. In the existing filtering system with the ceramic filter, two water pumps are generally required to be equipped, one is used for normal filtering, the other is specially used for back washing, and valves are required to be connected in series on pipelines, so that when one water pump works, the pipeline where the other water pump is located does not influence. It is a development direction of those skilled in the art to further simplify the piping structure of the filtration system.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the centrifugal water pump is ingenious in structural design and capable of switching the fluid pumping direction.
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: an energy-saving centrifugal water pump comprises a pump shell, a motor coaxially connected to one end of the pump shell, and a centrifugal water wheel rotatably arranged in the pump shell; the middle of the outer end face of one end of the pump shell, which is far away from the motor, is connected with a first water inlet joint, and the side wall of the pump shell is connected with a first water outlet joint and a second water outlet joint; the outer end face of the pump shell, which is far away from one end of the motor, is provided with a water inlet sleeve in a sealing manner, the periphery of the first water inlet connector is provided with a water inlet sleeve in a sealing manner, the side wall of the water inlet sleeve is connected with a second water inlet connector, and the outer end face of the pump shell, which is far away from one end of the motor, is provided with a water inlet sleeve connecting part in a sealing manner, wherein the;
a first water inlet channel communicated with the first water inlet joint and the position close to the middle in the pump shell and a second water inlet channel communicated with the second water inlet joint and the position close to the middle in the pump shell are formed on the pump shell;
a circular groove-shaped reversing sleeve is rotatably arranged on the periphery of the centrifugal water wheel in the pump shell, a water inlet switching port communicated with the first water inlet channel or the second water inlet channel is formed at the bottom of the reversing sleeve, and a water outlet switching port communicated with the first water outlet joint or the second water outlet joint is formed in the side wall of the reversing sleeve;
a limiting convex strip is formed on the inner side wall of the pump shell, and a limiting groove matched with the limiting convex strip to limit the rotation range of the reversing sleeve is formed on the outer side wall of the reversing sleeve;
when the reversing sleeve rotates clockwise to the limit position, the water inlet switching port is opposite to the first water inlet channel, and the water outlet switching port is opposite to the first water outlet joint; when the reversing sleeve rotates anticlockwise to the limit position, the water inlet switching port is opposite to the second water inlet channel, and the water outlet switching port is opposite to the second water outlet joint;
a steel sheet is fixedly arranged on the side wall of the reversing sleeve, and a reversing magnet capable of attracting the steel sheet through magnetic force is arranged in the centrifugal water wheel so as to drive the reversing sleeve to rotate forwards and backwards;
a steel sheet accommodating groove for accommodating the steel sheet is formed in the side wall of the reversing sleeve, and the steel sheet accommodating groove is fixedly bonded with the steel sheet;
the centrifugal water wheel comprises a circular base plate, more than two first blades and second blades, wherein the first blades are integrally connected to one end, far away from the motor, of the base plate, the second blades are equal in number to the first blades, and the first blades and the second blades are arranged in a staggered mode at equal angles along the circumferential direction of the base plate;
the utility model discloses a position of first blade is close to base plate center shaping has the iron sheet installation cavity, the outside shaping that first blade is located the iron sheet installation cavity has the magnet installation cavity, fixed the inserting of iron sheet installation cavity is equipped with the iron sheet that resets, switching-over magnet is installed just can follow base plate radial slip in the magnet installation cavity.
Preferably, the method comprises the following steps: when the reversing magnet is at the limit position at the outer end of the magnet mounting cavity and is only subjected to gravity or is not subjected to external force, the magnetic field suction force between the reversing magnet and the reset iron sheet is larger than the magnetic field suction force between the reversing magnet and the steel sheet, so that when the centrifugal water wheel does not rotate, the reversing magnet and the reset iron sheet are tightly sucked and are at the limit position at the inner end of the magnet mounting cavity.
Preferably, the method comprises the following steps: and sealing rubber rings are arranged on the reversing sleeve outside the water inlet switching port and the water outlet switching port, or at least the inner side of the pump shell and the outer side of the reversing sleeve are made of alumina ceramic materials.
Preferably, the method comprises the following steps: the pump case is circular groove body shape, pump case opening one end sealing connection has the pump cover, the output shaft of motor and pump cover sealing rotation are connected.
Preferably, the method comprises the following steps: the opening of iron sheet installation cavity and the opening of magnet installation cavity are towards base plate one end, and fixedly connected with covers on the base plate the opening of iron sheet installation cavity, the open-ended apron of magnet installation cavity.
Preferably, the method comprises the following steps: the central angles of the first water outlet joint and the second water outlet joint relative to the circular pump shell are 60 degrees; the first water inlet channel and the second water inlet channel are respectively 3 and are alternately arranged along the circumferential direction of the pump shell.
Compared with the prior art, the invention has the beneficial effects that: when a motor of the centrifugal water pump drives the centrifugal water wheel to rotate at a first speed, the centrifugal water pump is in a normal working state of pumping fluid, and the first speed is not enough to separate the reversing magnet from the reset iron sheet, so that the reversing magnet and the steel sheet keep the maximum distance, and the phenomenon that the magnetic field suction force between the reversing magnet and the steel sheet blocks the rotation of the centrifugal water wheel to waste electric energy is reduced.
When the motor drives the centrifugal water wheel to rotate at a second speed, the second speed can enable the centrifugal force of the reversing magnet to be larger than the magnetic field attraction force between the reversing magnet and the reset iron sheet, so that the reversing magnet moves outwards along the magnet installation cavity. When the reversing is located at the outermost end limit position of the magnet installation cavity, the magnetic field suction force between the reversing magnet and the steel sheet is enough to drive the reversing sleeve to rotate relative to the pump shell, so that when the water pump switches the water pumping direction, the motor drives the centrifugal water wheel to rotate at the second speed for a period of time, and then the reversing sleeve can be driven to rotate from one limit position to the other limit position, and the reversing is completed.
The second speed is higher than the first speed, and the switching of the fluid pumping direction can be realized by controlling the positive and negative rotation and the rotating speed of the motor, namely the centrifugal water pump realizes the functions of two independent water pumps and is suitable for a filtering system with a back washing function.
Drawings
FIG. 1 is a schematic view of the centrifugal water pump according to the present invention.
Fig. 2 is an exploded view of the centrifugal water pump.
Fig. 3 is a structural state diagram of the reversing sleeve for communicating the first water inlet joint and the first water outlet joint.
Fig. 4 is a structural state diagram of the reversing sleeve for communicating the second water inlet joint and the second water outlet joint.
Fig. 5 and 6 are schematic structural diagrams of a pump shell of the water pump.
Fig. 7 is a sectional structural view of a pump case of the centrifugal water pump.
Fig. 8 is an exploded view of the reversing sleeve and the centrifugal water wheel portion.
51. A motor; 511. a pump cover;
52. a pump housing; 52a, a water inlet sleeve; 521. a first water inlet joint; 522. a first water outlet joint; 523. a second water outlet joint; 524. a second water inlet joint; 525. a water inlet sleeve connecting part; 526. a first water inlet channel; 527. a second water inlet channel; 528. limiting convex strips;
53. a reversing sleeve; 531. a water inlet switching port; 532. a water outlet switching port; 533. a steel sheet; 534. the steel sheet is accommodated in the groove; 535. a limiting groove;
54. a centrifugal water wheel; 541. a substrate; 542. a first blade; 543. a second blade; 544. a magnet mounting cavity; 545. an iron sheet installation cavity; 546. a commutating magnet; 547. resetting the iron sheet; 548. and (7) a cover plate.
Detailed Description
Example 1
Referring to fig. 1 to 8, the present embodiment is an energy-saving centrifugal water pump, which includes a pump housing 52, a motor 51 coaxially connected to one end of the pump housing, and a centrifugal water wheel 54 rotatably installed in the pump housing.
The pump case is circular groove body shape, pump cover 511 is connected with in pump case opening one end sealing, the output shaft and the pump cover of motor are sealed to rotate and are connected.
The middle of the outer end face of one end of the pump shell, which is far away from the motor, is connected with a first water inlet joint 521, and the side wall of the pump shell is connected with a first water outlet joint 522 and a second water outlet joint 523; the outer terminal surface that motor one end was kept away from to the pump case just is located the sealed cover of the periphery of first water supply connector and is equipped with one and intake cover 52a, it is connected with second water supply connector 524 to intake the cover lateral wall, the outer terminal surface shaping that motor one end was kept away from to the pump case has the cover connecting portion 525 that intakes with the sealed grafting of intaking.
The pump shell is provided with a first water inlet channel 526 which is communicated with the first water inlet joint and is close to the middle position in the pump shell, and a second water inlet channel 527 which is communicated with the second water inlet joint and is close to the middle position in the pump shell.
A circular groove-shaped reversing sleeve 53 is rotatably arranged on the periphery of the centrifugal water wheel in the pump shell, a water inlet switching port 531 communicated with the first water inlet channel or the second water inlet channel is formed at the bottom of the reversing sleeve, and a water outlet switching port 532 communicated with the first water outlet joint or the second water outlet joint is formed in the side wall of the reversing sleeve. And sealing rubber rings are arranged on the reversing sleeve outside the water inlet switching port and the water outlet switching port, or at least the parts of the inner side of the pump shell and the outer side of the reversing sleeve are made of alumina ceramic materials, so that the sealing rubber rings are not needed.
The pump shell inner side wall is formed with a limiting convex strip 528, and the outer side wall of the reversing sleeve is formed with a limiting groove 535 matched with the limiting convex strip to limit the rotation range of the reversing sleeve.
As shown in fig. 3, when the reversing sleeve rotates clockwise to the limit position, the water inlet switching port is opposite to the first water inlet channel, and the water outlet switching port is opposite to the first water outlet joint. As shown in fig. 4, when the reversing sleeve rotates counterclockwise to the limit position, the water inlet switching port is opposite to the second water inlet channel, and the water outlet switching port is opposite to the second water outlet joint.
The side wall of the reversing sleeve is fixedly provided with a steel sheet 533, and the centrifugal water wheel is internally provided with a reversing magnet 546 which can attract the steel sheet through magnetic force, so as to drive the reversing sleeve to rotate forwards and backwards.
And a steel sheet accommodating groove 534 for accommodating the steel sheet is formed in the side wall of the reversing sleeve, and the steel sheet accommodating groove is fixedly bonded with the steel sheet.
The centrifugal water wheel comprises a circular base plate, more than two first blades 542 and second blades 543, wherein the first blades 542 are integrally connected to the base plate and are far away from one end of the motor, the second blades 543 are equal in number to the first blades, and the first blades and the second blades are arranged in a staggered mode at equal angles along the circumferential direction of the base plate.
An iron sheet installation cavity 545 is formed in the position, close to the center of the substrate, of the first blade, a magnet installation cavity 544 is formed in the position, located on the outer side of the iron sheet installation cavity, of the first blade, a reset iron sheet 547 is fixedly inserted into the iron sheet installation cavity, and the reversing magnet is installed in the magnet installation cavity and can slide along the radial direction of the substrate.
When the reversing magnet is at the extreme position of the outer end of the magnet mounting cavity and is only subjected to gravity or not subjected to external force, the magnetic field attraction between the reversing magnet and the reset iron sheet is larger than that between the reversing magnet and the steel sheet. Therefore, when the centrifugal water wheel does not rotate, the reversing magnet and the reset iron sheet are tightly attracted and positioned at the extreme position of the inner end of the magnet mounting cavity.
When the water pump is used for pumping water, when the motor drives the centrifugal water wheel to rotate at a first speed, the first speed is not enough to separate the reversing magnet from the reset iron sheet, so that the reversing magnet and the steel sheet keep a maximum distance, and the phenomenon that the magnetic field suction force between the reversing magnet and the steel sheet blocks the rotation of the centrifugal water wheel to waste electric energy is reduced.
When the motor drives the centrifugal water wheel to rotate at a second speed, the second speed can enable the centrifugal force of the reversing magnet to be larger than the magnetic field attraction force between the reversing magnet and the reset iron sheet, so that the reversing magnet moves outwards along the magnet installation cavity. When the reversing is located at the outermost end limit position of the magnet installation cavity, the magnetic field suction force between the reversing magnet and the steel sheet is enough to drive the reversing sleeve to rotate relative to the pump shell, so that when the water pump switches the water pumping direction, the motor drives the centrifugal water wheel to rotate at the second speed for a period of time, and then the reversing sleeve can be driven to rotate from one limit position to the other limit position, and the reversing is completed. After reversing, the motor drives the centrifugal water wheel to rotate at a first speed, namely the centrifugal water pump is in a reverse water pumping state.
The opening of iron sheet installation cavity and the opening of magnet installation cavity are towards base plate one end, and fixedly connected with covers on the base plate the opening of iron sheet installation cavity, the open-ended apron 548 of magnet installation cavity.
In addition, in this embodiment, the first water outlet joint and the second water outlet joint are at an angle of 60 ° with respect to the center of the circular pump housing. The first water inlet channel and the second water inlet channel are respectively 3 and are alternately arranged along the circumferential direction of the pump shell.
The centrifugal water pump realizes the functions of two independent water pumps, and is suitable for a filtering system with a back washing function, namely the centrifugal water pump can be used for normal filtering when pumping in one direction, and can be used for back washing of a ceramic filter plate when pumping in the other direction.
Claims (6)
1. The utility model provides an energy-saving centrifugal water pump, includes the pump case, the motor of coaxial coupling in pump case one end to and rotate and install the centrifugal water wheel in the pump case, its characterized in that:
the middle of the outer end face of one end of the pump shell, which is far away from the motor, is connected with a first water inlet joint, and the side wall of the pump shell is connected with a first water outlet joint and a second water outlet joint; the outer end face of the pump shell, which is far away from one end of the motor, is provided with a water inlet sleeve in a sealing manner, the periphery of the first water inlet connector is provided with a water inlet sleeve in a sealing manner, the side wall of the water inlet sleeve is connected with a second water inlet connector, and the outer end face of the pump shell, which is far away from one end of the motor, is provided with a water inlet sleeve connecting part in a sealing manner, wherein;
a first water inlet channel communicated with the first water inlet joint and the position close to the middle in the pump shell and a second water inlet channel communicated with the second water inlet joint and the position close to the middle in the pump shell are formed on the pump shell;
a circular groove-shaped reversing sleeve is rotatably arranged on the periphery of the centrifugal water wheel in the pump shell, a water inlet switching port communicated with the first water inlet channel or the second water inlet channel is formed at the bottom of the reversing sleeve, and a water outlet switching port communicated with the first water outlet joint or the second water outlet joint is formed in the side wall of the reversing sleeve;
a limiting convex strip is formed on the inner side wall of the pump shell, and a limiting groove matched with the limiting convex strip to limit the rotation range of the reversing sleeve is formed on the outer side wall of the reversing sleeve;
when the reversing sleeve rotates clockwise to the limit position, the water inlet switching port is opposite to the first water inlet channel, and the water outlet switching port is opposite to the first water outlet joint; when the reversing sleeve rotates anticlockwise to the limit position, the water inlet switching port is opposite to the second water inlet channel, and the water outlet switching port is opposite to the second water outlet joint;
a steel sheet is fixedly arranged on the side wall of the reversing sleeve, and a reversing magnet capable of attracting the steel sheet through magnetic force is arranged in the centrifugal water wheel so as to drive the reversing sleeve to rotate forwards and backwards;
a steel sheet accommodating groove for accommodating the steel sheet is formed in the side wall of the reversing sleeve, and the steel sheet accommodating groove is fixedly bonded with the steel sheet;
the centrifugal water wheel comprises a circular base plate, more than two first blades and second blades, wherein the first blades are integrally connected to one end, far away from the motor, of the base plate, the second blades are equal in number to the first blades, and the first blades and the second blades are arranged in a staggered mode at equal angles along the circumferential direction of the base plate;
the utility model discloses a position of first blade is close to base plate center shaping has the iron sheet installation cavity, the outside shaping that first blade is located the iron sheet installation cavity has the magnet installation cavity, fixed the inserting of iron sheet installation cavity is equipped with the iron sheet that resets, switching-over magnet is installed just can follow base plate radial slip in the magnet installation cavity.
2. An energy saving centrifugal water pump as claimed in claim 1, wherein: when the reversing magnet is at the limit position at the outer end of the magnet mounting cavity and is only subjected to gravity or is not subjected to external force, the magnetic field suction force between the reversing magnet and the reset iron sheet is larger than the magnetic field suction force between the reversing magnet and the steel sheet, so that when the centrifugal water wheel does not rotate, the reversing magnet and the reset iron sheet are tightly sucked and are at the limit position at the inner end of the magnet mounting cavity.
3. An energy saving centrifugal water pump as claimed in claim 1, wherein: and sealing rubber rings are arranged on the reversing sleeve outside the water inlet switching port and the water outlet switching port, or at least the inner side of the pump shell and the outer side of the reversing sleeve are made of alumina ceramic materials.
4. An energy saving centrifugal water pump as claimed in claim 1, wherein: the pump case is circular groove body shape, pump case opening one end sealing connection has the pump cover, the output shaft of motor and pump cover sealing rotation are connected.
5. An energy saving centrifugal water pump as claimed in claim 1, wherein: the opening of iron sheet installation cavity and the opening of magnet installation cavity are towards base plate one end, and fixedly connected with covers on the base plate the opening of iron sheet installation cavity, the open-ended apron of magnet installation cavity.
6. An energy saving centrifugal water pump as claimed in claim 1, wherein: the central angles of the first water outlet joint and the second water outlet joint relative to the circular pump shell are 60 degrees; the first water inlet channel and the second water inlet channel are respectively 3 and are alternately arranged along the circumferential direction of the pump shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415974.9A CN109989924B (en) | 2019-05-19 | 2019-05-19 | Energy-saving centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415974.9A CN109989924B (en) | 2019-05-19 | 2019-05-19 | Energy-saving centrifugal water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109989924A CN109989924A (en) | 2019-07-09 |
| CN109989924B true CN109989924B (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910415974.9A Active CN109989924B (en) | 2019-05-19 | 2019-05-19 | Energy-saving centrifugal water pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343862B (en) * | 2020-11-21 | 2022-02-08 | 越连机电有限公司 | Novel self-priming pump and pump case thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185558A (en) * | 1996-10-28 | 1998-06-24 | 大宇电子株式会社 | Hot water circulating pump selectively supplying hot-water through a pair of tube |
| CN1450269A (en) * | 2002-04-09 | 2003-10-22 | 考特克斯·特克斯罗恩有限公司及两合公司 | Washing fluid pump |
| WO2009157350A1 (en) * | 2008-06-26 | 2009-12-30 | パナソニック電工株式会社 | Pump |
| CN206785661U (en) * | 2017-06-05 | 2017-12-22 | 东营市建筑设计研究院 | Automatic reverse water pump |
| CN207701389U (en) * | 2017-12-30 | 2018-08-07 | 利欧集团浙江泵业有限公司 | It is a kind of can bidirectional rotation water pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9714665B2 (en) * | 2013-12-13 | 2017-07-25 | Asia Connection LLC | Pool pump with multiple outlets |
| WO2017120453A1 (en) * | 2016-01-06 | 2017-07-13 | Bivacor Inc. | Heart pump with impeller axial position control |
-
2019
- 2019-05-19 CN CN201910415974.9A patent/CN109989924B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185558A (en) * | 1996-10-28 | 1998-06-24 | 大宇电子株式会社 | Hot water circulating pump selectively supplying hot-water through a pair of tube |
| CN1450269A (en) * | 2002-04-09 | 2003-10-22 | 考特克斯·特克斯罗恩有限公司及两合公司 | Washing fluid pump |
| WO2009157350A1 (en) * | 2008-06-26 | 2009-12-30 | パナソニック電工株式会社 | Pump |
| CN206785661U (en) * | 2017-06-05 | 2017-12-22 | 东营市建筑设计研究院 | Automatic reverse water pump |
| CN207701389U (en) * | 2017-12-30 | 2018-08-07 | 利欧集团浙江泵业有限公司 | It is a kind of can bidirectional rotation water pump |
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|---|---|
| CN109989924A (en) | 2019-07-09 |
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Effective date of registration: 20200617 Address after: 2 / F, No.2 building, Yangzhou information service industry base, Yangzhou City, Jiangsu Province, 225002 Applicant after: Jiangsu Pumping Station Technology Co., Ltd Address before: Hangzhou City, Zhejiang province 310052 Binjiang District Puyan Street venture Road No. 1 Building 9 Applicant before: Jia Xinkui |
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| GR01 | Patent grant |