CN100462565C - Automatic pump - Google Patents
Automatic pump Download PDFInfo
- Publication number
- CN100462565C CN100462565C CNB200610115702XA CN200610115702A CN100462565C CN 100462565 C CN100462565 C CN 100462565C CN B200610115702X A CNB200610115702X A CN B200610115702XA CN 200610115702 A CN200610115702 A CN 200610115702A CN 100462565 C CN100462565 C CN 100462565C
- Authority
- CN
- China
- Prior art keywords
- valve
- outer pipe
- described valve
- guiding element
- pump housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 32
- 238000012856 packing Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 5
- 241001212149 Cathetus Species 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- 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
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
-
- 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
- F04D15/0027—Varying behaviour or the very pump
-
- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- 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
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- 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
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/11—Kind or type liquid, i.e. incompressible
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
Abstract
The invention disclose a automatic pump whose valve structure is improved, the valve opens and closes the flow path by straight reciprocating motion with the pressure different caused by allowing and stopping for the flowing of the liquid. The inlet and outlet pipes are formed together with the pump body. The valve base and the valve guide component are configured in the outlet pipe and apart from each other with a appointed distance. The valve has one end part supported by the valve base and the other part supported by the valve guide component so that the valve can disport from the valve base for preventing the connecting of the inlet pipe and the outlet pipe. The valve and valve guide component set dividing apparatus for marking the configuration position of the valve and preventing the valve rotating.
Description
Technical field
The present invention relates to a kind of valve architecture advances automatic pump, the pressure difference that described valve utilization causes when being allowed to and being prevented from when fluid flows and point-blank to-and-fro motion to open and close flow path.
Background technique
Well known in the art is that pump is a kind of equipment that passes through the driving conveyance fluid of motor.Automatic pump is a kind of equipment that flows that the pump neutralization is discharged into the outer fluid of pump that is introduced in that is used for automatically controlling.
With reference to Fig. 1 traditional automatic pump is described.Fig. 1 is the longitudinal cross-section view that the schematic structure of traditional automatic pump is shown.
With reference to Fig. 1, automatic pump has the pump housing 11.The pump housing 11 comprises first shell 12 and second shell 13, and described first shell 12 and second shell 13 interosculate to limit flow path.A side and opposite side that inlet 12a and outlet 12b pass first shell 12 form, and impeller 21 is arranged in the inside of first shell 12.In the inside of second shell 13, be used to prevent that first valve 31 of fluid reflux and inlet 12a are adjacent to be provided with, second valve 35 that is used to allow and stop fluid to be communicated with between inlet 12a and outlet 12b is adjacent to be provided with outlet 12b.
If fluid flows and to be prevented from, then enter the mouth 12a and outlet 12b are closed by first valve 31 and second valve 35 respectively, and the valve body of described first valve 31 and second valve 35 descends owing to himself weight.Then, if open cock, then along with fluid is discharged by outlet 12b, the pressure in outlet 12b and the pressure tank 41 reduces.When the pressure in the pressure tank 41 that is sensed by pressure switch 45 during less than predetermined pressure, pressure switch 45 is opened.If pressure switch 45 is opened, then motor 25 controlled devices 51 drive so that impeller 21 rotations.
Therefore, the fluid that is present among the inlet 12a flows towards outlet 12b by impeller 21.Then, because the pressure difference that this fluid flow to produce makes win valve 31 and second valve 35 raised, so that inlet 12a and outlet 12b interconnect.Along with second valve 35 is raised, the magnet 36 that is installed in second valve 35 is risen integratedly to open guide switch (lead switch) 55.
Then, if cut-out tap, the pressure that then exports in 12b and the pressure tank 41 raises gradually.When the pressure in the pressure tank 41 was not less than predetermined pressure, pressure switch 45 was closed.Therefore, if inlet 12a, outlet 12b are identical with pressure in the pressure tank 41, then first valve 31 and second valve 35 since they self weight descend with will enter the mouth 12a with export 12b and close.Along with second valve 35 descends, the magnet 36 that is installed in second valve 35 descends integratedly to close guide switch 55.If guide switch 55 is closed, then controller 51 stops motor 25.Along with motor 25 stops, fluid stops to flow, and first valve 31 prevents fluid reflux.
In aforesaid traditional automatic pump, because the said structure of second valve 35, so be difficult to close fully inlet 12a and outlet 12b.In addition, because be used to prevent that first valve 31 of fluid reflux must be provided with individually, therefore, the complex structure of automatic pump and its manufacture cost increase.In addition, because first valve 31 and second valve 35 descend owing to their own wt, so the pump installation direction is restricted.
The automatic pump that is used to address these problems is disclosed in the 2005-3818 korean patent application that the applicant submits to.
Yet the shortcoming that this automatic pump exists is, forms discretely because the outer pipe and the pump housing of valve are installed, and is assembled on the pump housing then, so manufacture cost increases.
Summary of the invention
Therefore, propose the present invention to solve the above-mentioned problems in the prior art, one object of the present invention is to provide a kind of automatic pump, and described automatic pump is constructed such that manufacture cost reduces.
To achieve these goals, according to the present invention, provide a kind of automatic pump, described automatic pump comprises: the pump housing is limited with predetermined space, and is connected with outer pipe with inlet duct in it; Impeller is arranged in the described pump housing, is used for fluid is transmitted towards described outer pipe from described inlet duct forcibly; Motor is installed in the outside of the described pump housing, is used to make described impeller rotation; Valve is located in the described outer pipe, be used in described outer pipe cathetus ground to-and-fro motion, thereby permission and prevention fluid is communicated with between described inlet duct and outer pipe; Magnet is installed in the described valve, to move with described valve integratedly; Pressure tank is installed on the described pump housing, is used for being communicated with described outer pipe; Pressure switch is installed on the described pump housing, is used for the pressure of the described pump housing of sensing; Guide switch is installed in the outside of the described pump housing, and described guide switch is opened and closed according to the distance between itself and the described magnet; Controller, be arranged in the outside of the described pump housing, when the pressure in the described pressure tank during less than predetermined pressure, drive described motor, and when described guide switch is closed, described motor is stopped, wherein, described inlet duct and outer pipe and the described pump housing form, in described outer pipe, be furnished with valve seat and valve guiding element, spaced-apart intended distance, described valve has respectively by an end portion and the other end part of described valve seat and the support of described valve guiding element, thereby described valve contacts and disengages with permission with described valve seat and stops fluid to be communicated with between described inlet duct and outer pipe, and described valve and valve guiding element are provided with indexing mechanism, is used to indicate the rigging position of described valve and is used to prevent described valve rotation.
Description of drawings
By the detailed description of carrying out below in conjunction with accompanying drawing, it is clear that above and other objects of the present invention, characteristics and advantage will become, wherein:
Fig. 1 is the longitudinal cross-section view that traditional automatic pump is shown;
Fig. 2 is the longitudinal cross-section view that illustrates according to the automatic pump of the embodiment of the invention;
Fig. 3 is the transverse sectional view that the valve portion shown in Fig. 2 is shown;
Fig. 4 is the perspective exploded view that the valve seat shown in Fig. 3, packing ring, valve, spring and valve guiding element are shown.
Embodiment
Hereinafter, describe the preferred embodiments of the present invention with reference to the accompanying drawings, in the following description and the drawings, identical label is used to represent identical or similar assembly, therefore, will omit being repeated in this description identical or similar assembly.
Fig. 2 is the longitudinal cross-section view that illustrates according to the automatic pump of the embodiment of the invention, Fig. 3 is the transverse sectional view that the valve portion shown in Fig. 2 is shown, and Fig. 4 is the perspective exploded view that the valve seat shown in Fig. 3, packing ring, valve, spring and valve guiding element (valve guide) is shown.
With reference to accompanying drawing, comprise the pump housing 110 that is limited with predetermined space in it according to the automatic pump of the embodiment of the invention.The pump housing 110 has at the inlet duct 111 of one side with at the outer pipe 113 of its opposite side, and described inlet duct 111 is connected to the water supply source, and described outer pipe 113 is connected to the cock of desired locations.Inlet duct 111 and outer pipe 113 form with the pump housing 110.
Valve 140 is located in the outer pipe 113, and the fluid that makes described valve 140 can the rotation by impeller 125 produce flows and in outer pipe 113 cathetus ground to-and-fro motion, thereby allows and the prevention fluid is communicated with between inlet duct 111 and outer pipe 113.
To describe the structure of valve 140, valve seat 150 and valve guiding element 160 below in detail.
Valve 140 has: open wide and shut 141, it forms the corresponding shape of shape that has with the main body 151 of valve seat 150, so that contact and disengage with the other end surface of the main body 151 of valve seat 150; First strut 143 and second strut 145 respectively from opening wide and extend on an end surfaces and the other end surface of shut 141, and insert respectively in the supported hole 165 of the supported hole 155 of valve seat 150 and valve guiding element 160.Because first strut 143 and second strut 145 insert respectively in the supported hole 165 of the supported hole 155 of valve seat 150 and valve guiding element 160, thus valve 140 can be in outer pipe 113 according to stable manner to-and-fro motion and not distorting point-blank.
Angle and distance between magnet 170 and the guide switch 175 must be in the scope that presets, and is is accurately opened and closed according to the distance between itself and the magnet 170 to allow guide switch 175.In this, because guide switch 175 is installed in the outside of the pump housing 110, so it can be maintained at fixing position.Yet, because magnet 170 is fastened on the valve 140 to be arranged in outer pipe 113, so be difficult to magnet 170 is installed in preposition.
Consider these, in automatic pump according to the embodiment of the invention, be installed in the precalculated position unchangeably in order to ensure magnet 170, be used for indicating the rigging position of (indexing) valve 140 and prevent that the indexing mechanism (indexing means) of valve 140 rotations is located at valve 140 and valve guiding element 160.
Indexing mechanism comprises: index lever (indexing bar) 181, be formed on valve 140 open wide and the other end surface of shut 141 on; Index hole (indexing hole) 185, a rib 163 that passes valve guiding element 160 forms, and index lever 181 inserts and passes described index hole 185.At this moment, preferably, form index lever 181 and index hole 185, and be limited to depart from and open wide and the position at the center of the main body 161 of the center of shut 141 and valve guiding element 160.
With the operation of describing according to the embodiment of the invention of the automatic pump of structure as mentioned above.
Be not supplied at fluid under the situation of desired locations, because opening wide with shut 141 of valve 140 is partial to valve seats 150 by resilient member 190, so prevent the connection of fluid between inlet duct 111 and outer pipe 113.Then, if opening installation in the cock of desired locations, then along with the discharging of the fluid in outer pipe 113 and pressure tank 130, the pressure in the outer pipe 113 and the pump housing 110 reduces.
Then, controller 200 receives the signal of the pressure in the indication pump housing 110 by pressure switch 135.When the pressure in the pump housing 110 during less than predetermined pressure, controller 200 drive motor 120 also make impeller 125 rotations.
If impeller 125 rotations, then the fluid in the inlet duct 111 is transmitted towards outer pipe 113 forcibly.When then, the pressure difference cause causes valve 140 to overcome the elastic force of resilient member 190 because fluid flows towards 160 motions of valve guiding element.Therefore because valve 140 separates with valve seat 150, so inlet duct 111 and outer pipe 113 interconnect, thereby the fluid in inlet duct 111 can flow to outer pipe 113.
Along with magnet 170 moves closer to guide switch 175 owing to the motion of valve 140, if the distance between magnet 170 and the guide switch 175 less than intended distance, then guide switch 175 is opened and motor 120 drives continuously.
Thereafter, if cut-out tap, then the pressure in the outer pipe 113 and the pump housing 110 increases.If the pressure in inlet duct 111, outer pipe 113 and the pump housing 110 equates that then valve 140 moves to be returned to original state towards valve seat 150 gradually by the elastic force of resilient member 190.Therefore, cut off the connection of fluid between inlet duct 111 and outer pipe 113.At this moment, because valve 140 is flexibly setovered towards valve seat 150 by the elastic force of resilient member 190, reflux towards inlet duct 111 so prevent the fluid in the outer pipe 113.
Because the motion of valve 140 separates with guide switch 175 gradually, if the distance between magnet 170 and the guide switch 175 is not less than intended distance, then guide switch 175 is closed, then, controller 200 stops motor 120 and impeller 125 along with magnet 170.
Be apparent that from top description the advantage that automatic pump according to the present invention provides is, because the pump housing and outer pipe form mutually, thus do not need to be used for outer pipe is assembled to the operation of the pump housing, thus manufacture cost can be reduced.
In addition, because can be by replacing a valve, so can further reduce manufacture cost from outer pipe dismounting valve guiding element.
Though for illustrative purposes, describe the preferred embodiments of the present invention, it will be understood by those skilled in the art that under the situation that does not break away from the disclosed scope and spirit of the present invention of claim, can carry out various modifications, increase and alternative.
Claims (9)
1. automatic pump comprises:
The pump housing is limited with predetermined space in it, and is connected with outer pipe with inlet duct;
Impeller is arranged in the described pump housing, is used for fluid is transmitted towards described outer pipe from described inlet duct forcibly;
Motor is installed in the outside of the described pump housing, is used to make described impeller rotation;
Valve is located in the described outer pipe, and in described outer pipe cathetus ground to-and-fro motion, thereby permission and prevention fluid are communicated with between described inlet duct and outer pipe;
Magnet is installed in the described valve, to move with described valve integratedly;
Pressure tank is installed on the described pump housing, is used for being communicated with described outer pipe;
Pressure switch is installed on the described pump housing, is used for the pressure of the described pump housing of sensing;
Guide switch is installed in the outside of the described pump housing, and described guide switch is opened and closed according to the distance between itself and the described magnet;
Controller is arranged in the outside of the described pump housing, and when the pressure in the described pressure tank during, drive described motor, and when described guide switch is closed, described motor is stopped less than predetermined pressure,
Wherein, described inlet duct and outer pipe and the described pump housing form,
In described outer pipe, be furnished with valve seat and valve guiding element, spaced-apart intended distance,
Described valve has respectively an end portion and the other end part that is supported by described valve seat and described valve guiding element, thereby described valve contact and disengages with permission and prevention fluid with described valve seat and is communicated with between described inlet duct and outer pipe,
Described valve and valve guiding element are provided with indexing mechanism, are used to indicate the rigging position of described valve and are used to prevent described valve rotation.
2. automatic pump as claimed in claim 1, wherein, each of described valve seat and valve guiding element has: circumferential body press-fits the internal surface that is coupled to described outer pipe; Rib is formed on the internal surface of described main body, is used to strengthen described main body; Supported hole is limited by described rib;
Described valve has: open wide and shut, form the shape corresponding shape that has with the main body of described valve seat, thereby contact and disengage with the other end surface of the main body of described valve seat, tighten intrinsic magnet described opening wide with shut; First strut and second strut extend from described opening wide with an end surfaces and the other end surface of shut, and insert the supported hole of described valve seat and the supported hole of described valve guiding element.
3. automatic pump as claimed in claim 2, wherein, described indexing mechanism comprises: index lever, be formed on described open wide and the other end surface of shut on; Index hole, the rib that passes described valve guiding element forms, and described index lever inserts and passes described index hole.
4. automatic pump as claimed in claim 3, wherein, described index lever and index hole are formed and are limited at and depart from described opening wide and the position at the center of the center of shut and described valve guiding element.
5. automatic pump as claimed in claim 3 wherein, forms the shaft shoulder respectively on the outer surface of the outer surface of described second strut and index lever, and when described valve point-blank during to-and-fro motion, the ribbed joint of the described shaft shoulder and described valve guiding element touches and disengages.
6. automatic pump as claimed in claim 2 wherein, is opening wide and shut separates on the position of the distance of selecting in advance and forms dunnage with described on the outer surface of first strut, and the external diameter of described dunnage is less than the internal diameter of the main body of described valve seat;
Be equipped with packing ring between described dunnage and unlimited and shut, described packing ring contacts and disengages with the other end surface of the main body of described valve seat.
7. automatic pump as claimed in claim 2 wherein, forms the shaft shoulder on the internal surface of described outer pipe, make the end surfaces of main body of described valve seat contact with the described shaft shoulder, thereby be supported by it.
8. automatic pump as claimed in claim 2 wherein, forms contact on the other end surface of the main body of described valve guiding element, contact with the end surfaces of described outer pipe;
Pass described contact and form locking aperture;
Described valve guiding element is attached to described outer pipe by screw, and described screw passes described locking aperture and locks onto described outer pipe.
9. as each the described automatic pump in the claim 1 to 8, wherein, between described valve and described valve guiding element, be provided with resilient member, be used for described valve is flexibly setovered towards described valve seat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060044720A KR100764855B1 (en) | 2006-05-18 | 2006-05-18 | Automatic pump |
| KR1020060044720 | 2006-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074679A CN101074679A (en) | 2007-11-21 |
| CN100462565C true CN100462565C (en) | 2009-02-18 |
Family
ID=38975904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610115702XA Expired - Fee Related CN100462565C (en) | 2006-05-18 | 2006-08-11 | Automatic pump |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100764855B1 (en) |
| CN (1) | CN100462565C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016046682A1 (en) * | 2014-09-22 | 2016-03-31 | Industrie Saleri Italo S.P.A. | Valve group with axially movable shutter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101077732B1 (en) | 2009-08-31 | 2011-10-27 | 서미영 | Circulation pump |
| KR200461536Y1 (en) | 2009-11-18 | 2012-07-19 | 왈러스 펌프 코퍼레이션 리미티드 | Water supply unit of a water pump |
| CN109185170B (en) * | 2018-08-23 | 2023-08-11 | 青岛三利中德美水设备有限公司 | Non-negative pressure water pump, water pump assembling method and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| DE10115989A1 (en) * | 2000-04-04 | 2001-12-13 | Bernhard Stadler | Rotary circulation pump has an axially moveable motor rotor which is automatically positioned to block back circulation when in the quiescent mode |
| CN2538986Y (en) * | 2001-04-12 | 2003-03-05 | 威乐－乐金水泵有限公司 | Automatic water pump |
| CN2566017Y (en) * | 2001-11-15 | 2003-08-13 | 威乐水泵有限公司 | Automatic water pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57148081A (en) | 1981-03-09 | 1982-09-13 | Sanyo Electric Co Ltd | Automatic operating device for pump |
| JPS58197483A (en) | 1982-05-12 | 1983-11-17 | Sanyo Electric Co Ltd | Automatic operating apparatus for pump |
| KR100527522B1 (en) * | 2003-02-15 | 2005-11-09 | 윌로펌프 주식회사 | Automatic pump |
-
2006
- 2006-05-18 KR KR1020060044720A patent/KR100764855B1/en active IP Right Grant
- 2006-08-11 CN CNB200610115702XA patent/CN100462565C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| DE10115989A1 (en) * | 2000-04-04 | 2001-12-13 | Bernhard Stadler | Rotary circulation pump has an axially moveable motor rotor which is automatically positioned to block back circulation when in the quiescent mode |
| CN2538986Y (en) * | 2001-04-12 | 2003-03-05 | 威乐－乐金水泵有限公司 | Automatic water pump |
| CN2566017Y (en) * | 2001-11-15 | 2003-08-13 | 威乐水泵有限公司 | Automatic water pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016046682A1 (en) * | 2014-09-22 | 2016-03-31 | Industrie Saleri Italo S.P.A. | Valve group with axially movable shutter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100764855B1 (en) | 2007-10-09 |
| CN101074679A (en) | 2007-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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