CN104564838B - A kind of open water pump and application thereof - Google Patents
A kind of open water pump and application thereof Download PDFInfo
- Publication number
- CN104564838B CN104564838B CN201410848627.2A CN201410848627A CN104564838B CN 104564838 B CN104564838 B CN 104564838B CN 201410848627 A CN201410848627 A CN 201410848627A CN 104564838 B CN104564838 B CN 104564838B
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- CN
- China
- Prior art keywords
- lower house
- water pump
- upper shell
- guide support
- accommodating cavity
- Prior art date
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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
- F04D29/42—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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of open water pump, including upper shell, lower house and impeller, described impeller includes the axle being positioned at center and the multiple blades axially extended being uniformly distributed circumferentially on the side face of axle, described blade is divided into interconnective epimere and hypomere in the axial direction, described upper shell is formed the upper accommodating cavity of accommodating described blade epimere, described lower house is formed the lower accommodating cavity of accommodating described blade hypomere, it is characterized in that: described upper shell and lower house synchronous rotary, the base ring for mounting and positioning described lower house it is provided with below described lower house.Also disclose a kind of application and have the water tank cleaner of above-mentioned open water pump.
Description
Technical field
The present invention relates to a kind of water pump, a kind of open water pump, and the application of this open water pump.
Background technology
Water pump is before work, and water pump and water inlet pipe must fill water, rely on the impeller of High Rotation Speed afterwards, makes liquid used
Property centrifugal force effect under obtain energy it is thus possible to pressure in improving it, when impeller quickly rotates, blade promotes water quickly to revolve
Turning, along with the effect of centrifugal force flies out from impeller, after the water in water pump is spilled over, the core of impeller forms vacuum
Region, the water at water source enters in water inlet pipe under the effect of atmospheric pressure (or hydraulic pressure) afterwards, and so circulation is endlessly,
Just can realize continuous pumpage.Because water pump has simple in construction, processing ease, flow can easily be accommodated and be applicable to various
The advantages such as the conveying of special nature material, are widely used in every field, greatly to each industrial site, and little to various family expenses
Electrical equipment, such as washing machine, dish-washing machine, air-conditioning etc..
So that water pump processing and manufacturing and the facility of installation, there has been a kind of open water pump, as open
Number it is a kind of dish-washing machine of the European Patent Publication of EP0807396A2, including the washing chamber for accommodating plate, supports
Spray arm bottom washing chamber, pumps out the pump that spray arm is pressurizeed by cleaning solution, and pump includes impeller, the inner surface of spray arm
Define the housing for impeller, it is allowed to cleaning solution nozzle from housing to spray arm transmits, and impeller is included in relatively low
The prone blade of edge, the bottom of blade has an axial--flow blading part, impeller and the splined shaft driving motor
Engaging, after the non-loaded lower startup of motor, fluid is lifted by axial--flow blading part, thus pump normally works.
But above-mentioned this open water pump, owing to the water inlet of water pump is in the lower section of housing, below housing either one
To current enter into housing in lifted by the blade of impeller after go out from spray arm spray, and due to the unordered entrance of current
In water pump, impeller rotates when drawing water, and easily produces bigger noise；And when current have just enter in housing, its speed
More slow, it is unfavorable for forming negative pressure, thus affects the effect that draws water of impeller.
To this end, above-mentioned open water pump has been made to improve, such as the China of Application No. 201320889336.9 by the applicant
A kind of open water pump disclosed in patent, including upper shell, lower house and impeller, axle that impeller includes being positioned at center and
The multiple blades axially extended being uniformly distributed circumferentially on the side face of axle, blade is divided on interconnective in the axial direction
Section and hypomere, be formed with the upper accommodating cavity of accommodating blade epimere, be formed under blade hypomere in lower house in upper shell
Accommodating cavity, the lower section of lower house is provided with guide ring, the water stream channel between guide ring and lower house by periphery to center
It is gradually reduced.But this water pump, owing to upper shell (rotation spray arm) rotates under the effect of current, and lower house (water conservancy diversion
Support) the fixing with the water trough body applied of hanging type, i.e. water pump operationally upper shell rotate and lower house is fixing not
Dynamic, thus when the water in the draining region of tank is upwards drawn and flows in the runner of rotation spray arm by impeller rotation, meeting
Run into bigger resistance, and cause the current drawn to be back to impeller so that the efficiency that draws water of water pump reduces, and increases water pump
Power consumption, and when it is applied to water tank cleaner, the cleaning performance of cleaning machine can be affected.
Summary of the invention
First to be solved by this invention technical problem is that the problem existed for above-mentioned prior art, it is provided that a kind of raising
The open water pump of the efficiency that draws water.
Second technical problem to be solved by this invention is to provide a kind of application has the water tank type of above-mentioned open water pump clear
Washing machine.
The present invention solves the technical scheme that above-mentioned first technical problem used: a kind of open water pump, including upper casing
Body, lower house and impeller, described impeller include the axle being positioned at center and be uniformly distributed circumferentially on the side face of axle multiple
The blade axially extended, described blade is divided into interconnective epimere and hypomere in the axial direction, is formed in described upper shell
There is the upper accommodating cavity of accommodating described blade epimere, described lower house is formed the lower accommodating sky of accommodating described blade hypomere
Chamber, it is characterised in that: described upper shell and lower house synchronous rotary, it is provided with for mounting and positioning below described lower house
The base ring of described lower house.
In order to realize the synchronous rotary of upper shell and lower house, between upper shell and lower house preferably, Ke Yiwei, described
Upper shell and lower house are one-body molded；Or can also be, described upper shell and lower house removably connect.
Described upper shell and lower house realize removably connecting by screw thread, buckle or interference fit.
The bottom of described lower house is provided with the locating ring being positioned at inside described base ring, the internal perisporium of described base ring and described location
One of them of the periphery wall of ring is provided with radially projecting convex tendon, the internal perisporium of described base ring and the periphery of described locating ring
Another of wall is provided with the groove coordinated with described convex tendon.Not only achieve the location to lower house, it is to avoid lower house exists
Rock during rotation and occur the skew of position to affect the normal work of impeller；And such design makes lower house revolve
When turning, reduce as far as possible and rotate the current disorder caused, reduce noise when drawing water, it is ensured that current enter water pump in order
In.
The present invention solves the technical scheme that above-mentioned second technical problem used: a kind of water tank cleaner, including shape
Become scrubbing space casing, described casing includes water trough body, it is characterised in that the bottom of described water trough body at least in
Position, centre is formed with draining region, described draining region is coated with the drainboard with draining hole, opens as above
Formula water pump is arranged in described draining region, and described base ring is fixed on the bottom of described water trough body.
In an embodiment of the present invention, described upper shell is the rotation spray arm covered on described impeller, described rotation spray arm
Including involutory upper cover body and lower cover, form described accommodating cavity in the middle of described lower cover, thus will rotate spray arm
As the water outlet part of open water pump, current flow out from the side of upper accommodating cavity laggard enter runner.
For the ease of current from rotating spray arm ejection, the upper cover body of described rotation spray arm offers apopore, described upper cover
Being formed with the runner connected with described accommodating cavity between body and lower cover, described apopore is corresponding with the position of runner,
The water pumped out by impeller flows out from the side of upper accommodating cavity, is sprayed from apopore by runner and goes out.
In an embodiment of the present invention, described lower house is guide support, and described guide support is the cylindrical shape of both ends open,
Described guide support forms multiple leg longitudinally extended near the sidewall hollow out of bottom so that described guide support is unsettled
It is arranged on the bottom of water trough body, in the guide support part above described leg, forms described lower accommodating cavity, thus water
The water inlet of pump is positioned at lower section and the side of guide support, can carry out moisturizing timely.
Compared with prior art, it is an advantage of the current invention that: by the upper shell of water pump and lower house being set to synchronization rotation
The form turned, so that water pump is operationally, after the water drawn when impeller enters in the runner of upper shell, lower house
Rotation current refluxed produce bigger resistance so that current are difficult to be back to impeller, which thereby enhance drawing of water pump
Water efficiency, improves the balance of water pump, and the installation of water pump, dismantle and manufacture the most very convenient.
Accompanying drawing explanation
The schematic diagram of the water tank cleaner that the open water pump that Fig. 1 is the present invention is applied；
The partial sectional view (hiding cover plate) of the water tank cleaner that the open water pump that Fig. 2 is the present invention is applied；
Fig. 3 is the sectional view of first embodiment of the open water pump of the present invention；
Fig. 4 is the decomposition texture schematic diagram of first embodiment of the open water pump of the present invention；
Fig. 5 is the sectional view of second embodiment of the open water pump of the present invention；
Fig. 6 is the decomposition texture schematic diagram of second embodiment of the open water pump of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
See Fig. 1～Fig. 4, a kind of water tank cleaner, may be used for cleaning dishes, veterinary antibiotics etc., including tank
Body 1, and it is rotatably connected on the cover plate 2 at water trough body 1 top, water trough body 1 can be the common water channel of family expenses,
Water trough body 1 and cover plate 2 form scrubbing space, to accommodate above-mentioned dishes, veterinary antibiotics etc., are carried out it.
The base plate 11 of water trough body 1 is at least recessed at central part, and above base plate 11 recessed portion, compartment of terrain is covered
It is stamped the drainboard 3 identical with recessed portion shape, drainboard 3 offers multiple draining hole 31 for draining, drip
Between water plate 3 and base plate 11 recessed portion, the space at interval forms draining region 32, other of drainboard 3 and base plate 11
Part flushes.Outside water trough body 1, the lower section of base plate 11 is provided with motor 4, and the output shaft 41 of motor 4 extend into
After in water trough body 1, it is positioned at the draining region 32 above base plate 11.
Being provided with open water pump 5 in draining region 32, water pump 5 includes that impeller 51, impeller 51 include being positioned at center
The axle 511 of hollow and multiple blade 512 being arranged on axle 511 side face, blade 512 is on the side face of axle 511
It is uniformly distributed and axially extends, and blade 512 is divided into interconnective epimere 5121 and hypomere in the axial direction
5122, the lower end of axle 511 is connected with the output shaft 41 of motor 4, can impeller 51 rotate when thus motor 4 rotates.
Impeller 51 is outside equipped with guide support 52, the guide support 52 cylindrical shape in both ends open, and guide support 52 leans on
The sidewall hollow out of nearly bottom forms multiple leg 521, and leg 521 longitudinally extends so that guide support 52 forms unsettled setting
Put the state bottom water trough body 1, pass through with side from below for the current in draining region 32.Blade 512
Hypomere 5122 be positioned at the cylindric lower accommodating cavity 522 that guide support 52 part above leg 521 is formed,
Epimere 5121 is exposed to guide support 52, and thus, guide support 52 forms the lower house of open water pump 5.
The top of guide support 52 is coated with rotation spray arm 53, rotates spray arm 53 and is positioned at above drainboard 3, its middle end
Portion is formed with accommodating cavity 531, to accommodate the epimere 5121 of blade 512, thus, rotates spray arm 53 and is formed open
The upper shell of formula water pump 5, water pump 5 is for pumping out the water in draining region 32, by rotating spray arm 53 to be cleaned
Object (dishes mentioned above, veterinary antibiotics etc.) is rinsed.
The opened downward of guide support 52, current can enter into impeller 51 from the lower section of guide support 52 and side, i.e.
The water inlet of open water pump 5 is positioned at lower section and the side of guide support 52, rotates the relatively upper accommodating cavity 531 of spray arm 53
End face close, current from the side of upper accommodating cavity 531 flow out, the delivery port of the most open water pump 5 is positioned at rotation spray
The side of upper accommodating cavity 531 in arm 53.
Rotate spray arm 53 and include involutory upper cover body 532 and lower cover 533, formed and upper accommodating cavity 531 between the two
The runner of connection, upper accommodating cavity 531 is positioned at the centre rotating spray arm 53, and runner is positioned at accommodating cavity 531
Both sides, in the present embodiment, the top of guide support 52 is one-body molded with the lower cover 533 rotating spray arm 53, upper cover
Body 532 and lower cover 533 are welded and fixed, and impeller 51 was placed to before upper cover body 532 and lower cover 533 are welded
Rotate in spray arm 53.Upper cover body 532 upper surface offers multiple apopore 5321, and apopore 5321 is positioned at the upper of runner
Side, corresponding with runner, impeller 51 water pumped out enters into runner by upper accommodating cavity 531, and then from water outlet
Hole 5321 sprays, and treats cleaning object and is rinsed.
Being positioned at the lower section of guide support 52 on base plate 11, the water inlet of the most open water pump 5 is provided with base ring 54, base ring
The position of 54 is corresponding with guide support 52, and the output shaft 41 of motor 4 passes and impeller 51 from base ring 54 center
Axle 511 connect, the upper surface of base ring 54 is gradually inclined upwardly to center by periphery, can enter in this water inlet
Current guide so that it is under orderly entering in accommodating cavity 522, thus greatly reduce impeller 51 and rotate
Noise when drawing water, and make current have a process accelerated before entering into lower accommodating cavity 522, contribute to shape
Become negative pressure, it is thus achieved that preferably draw water effect.
The bottom of the leg 521 of guide support 52 is provided with locating ring 523, and locating ring 523 connects multiple leg 521,
And on the periphery wall of locating ring 523, it is provided with radially projecting convex tendon 5231, and is provided with on the internal perisporium of base ring 54
Ring-type groove 541, the convex tendon 5231 of guide support 52 coordinates with the groove 541 of base ring 54, and convex tendon 5231 can hold
Put at groove 541 and relatively slide, so that guide support 52 and base ring 54 can be movable relatively, convex tendon 5231
The most interchangeable with the position of groove 541, will be arranged on base ring 54 by convex tendon 5231, and groove 541 is arranged on and determines
On the ring 523 of position.Base ring 54 and the cooperation of locating ring 523, define the position of guide support 52, it is to avoid is rotating
Time rock and occur the skew of position affect normally working of impeller 51；And such design makes guide support
During 52 rotation, reduce as far as possible and rotate the current disorder caused, reduce noise when drawing water, it is ensured that current enter in order
In water pump 5.
One-body molded with guide support 52 owing to rotating the lower cover 533 of spray arm 53, therefore, guide support 52 and rotation
Turn spray arm 53 can synchronous rotary, thus increase to enter and rotate the current of spray arm 53 and be back to the backflow resistance of impeller 51,
Improve the efficiency that water pump 5 draws water from draining region 32, improve the balance quality of water pump 5；Additionally, when dishes or vegetables
After cleaning, can manually water pump 5 be taken off, in order to draining region 32 is cleared up.
Embodiment two
See Fig. 5 and Fig. 6, in the present embodiment, be with the difference of above-described embodiment one, rotate spray arm 53
Lower cover 533 with guide support 52 for removably connecting, as being threaded connection, outside the top of guide support 52
It is provided with external screw thread 524 week, and rotates correspondence position on the lower cover 533 of spray arm 53 and be provided with internal thread 5331 so that rotation
Turn spray arm 53 and both can realize synchronous rotary with guide support 52, and install, dismantle and manufacture the most very convenient.
If the direction of rotation rotating spray arm 53 is (above water trough body 1) clockwise, then right-handed thread is used to connect, as
It is (above water trough body 1) counterclockwise that fruit rotates the direction of rotation of spray arm 53, then use left hand thread to connect, thus
Can prevent from rotating getting loose between spray arm 53 and guide support 52.
And rotate and buckle, interference fit etc. between the lower cover 533 of spray arm 53 and guide support 52, can also be used to realize
Removably connect.
Claims (9)
1. an open water pump, including upper shell, lower house and impeller (51), described impeller (51) includes being positioned at center
Axle (511) and multiple blades (512) axially extended of being uniformly distributed circumferentially on the side face of axle (511), described leaf
Sheet (512) is divided into interconnective epimere (5121) and hypomere (5122) in the axial direction, is formed with accommodating institute in described upper shell
State the upper accommodating cavity (531) of blade (512) epimere (5121), described lower house is formed accommodating described blade (512) hypomere
(5122) lower accommodating cavity (522), it is characterised in that: described upper shell and lower house synchronous rotary, under described lower house
Side is provided with the base ring (54) for mounting and positioning described lower house.
Open water pump the most as claimed in claim 1, it is characterised in that: described upper shell and lower house are one-body molded.
Open water pump the most as claimed in claim 1, it is characterised in that: described upper shell and lower house detachably connect
Connect.
Open water pump the most as claimed in claim 3, it is characterised in that: described upper shell and lower house by screw thread,
Buckle or interference fit realize removably connecting.
5. the open water pump as according to any one of Claims 1 to 4, it is characterised in that: the bottom of described lower house
It is provided with the locating ring (523) being positioned at described base ring (54) inner side, the internal perisporium of described base ring (541) and described locating ring (523)
One of them of periphery wall be provided with radially projecting convex tendon, the internal perisporium of described base ring (541) and described locating ring (523)
Another of periphery wall be provided with the groove coordinated with described convex tendon.
6. apply the water tank cleaner just like the open water pump according to any one of Claims 1 to 5, including
Forming the casing of scrubbing space, described casing includes water trough body (1), it is characterised in that: the end of described water trough body (1)
Portion's at least central part is formed with draining region (32), and described draining region (32) is coated with the draining with draining hole (31)
Plate (3), described open water pump is arranged in described draining region (32), and described base ring (54) is fixed on described water trough body
(1) bottom.
7. water tank cleaner as claimed in claim 6, it is characterised in that: described upper shell is for covering at described leaf
Rotation spray arm (53) on wheel (51), described rotation spray arm (53) includes involutory upper cover body (532) and lower cover (533), institute
State the middle of lower cover (533) and form described accommodating cavity (531).
8. water tank cleaner as claimed in claim 7, it is characterised in that: the upper cover body (532) of described rotation spray arm (53)
On offer apopore (5321), be formed between described upper cover body (532) and lower cover (533) and described accommodating cavity
(531) runner connected, described apopore (5321) is corresponding with the position of runner.
9. water tank cleaner as claimed in claim 6, it is characterised in that: described lower house is guide support (52),
The described guide support (52) cylindrical shape in both ends open, described guide support (52) is formed near the sidewall hollow out of bottom
Multiple legs (521) longitudinally extended so that the unsettled bottom being arranged on water trough body (1) of described guide support (52), described
Described lower accommodating cavity (522) is formed in guide support (52) part of leg (521) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848627.2A CN104564838B (en) | 2014-12-31 | 2014-12-31 | A kind of open water pump and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848627.2A CN104564838B (en) | 2014-12-31 | 2014-12-31 | A kind of open water pump and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564838A CN104564838A (en) | 2015-04-29 |
| CN104564838B true CN104564838B (en) | 2016-09-07 |
Family
ID=53081683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848627.2A Active CN104564838B (en) | 2014-12-31 | 2014-12-31 | A kind of open water pump and application thereof |
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| Country | Link |
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| CN (1) | CN104564838B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106466158A (en) * | 2015-08-21 | 2017-03-01 | 青岛海尔洗碗机有限公司 | A kind of dish-washing machine spray thrower fixed structure and dish-washing machine |
| CN105167729B (en) * | 2015-09-21 | 2018-03-09 | 宁波市天马厨具有限公司 | Dish-washing machine body structure |
| CN105485050B (en) * | 2015-12-22 | 2018-02-02 | 宁波市天马厨具有限公司 | Modified dish-washing machine impeller and its application method |
| CN105545790B (en) * | 2016-02-29 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of water tank cleaner |
| CN105996937B (en) * | 2016-07-14 | 2018-11-27 | 宁波金凌厨房设备有限公司 | A kind of open water basin dish-washing machine water pump complement having both drain function |
| CN106235914B (en) * | 2016-09-30 | 2019-02-26 | 宁波方太厨具有限公司 | A kind of fruit-vegetable cleaner |
| CN109277343A (en) * | 2017-07-22 | 2019-01-29 | 万盛精密钣金江苏有限公司 | Vehicle in a kind of Medical cleaning frame |
| CN108451473B (en) * | 2017-08-04 | 2023-09-22 | 施贵平 | Sink type cleaning machine |
| CN108425854A (en) * | 2018-04-19 | 2018-08-21 | 江门市蓬江区硕泰电器有限公司 | A kind of water pump and rinsing maching |
| CN110693423A (en) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | Spraying device of dish washing machine |
| CN109259687A (en) * | 2018-09-30 | 2019-01-25 | 珠海格力电器股份有限公司 | A kind of door-plate and dish-washing machine |
| CN113143155B (en) * | 2020-01-22 | 2022-10-21 | 宁波方太厨具有限公司 | Cleaning machine |
| CN111945360B (en) * | 2020-07-28 | 2021-07-23 | 珠海格力电器股份有限公司 | Spraying device of washing machine, washing machine and control method of washing machine |
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| US3785566A (en) * | 1973-01-02 | 1974-01-15 | Gen Electric | Sealing system for washing machine |
| FR2250503B2 (en) * | 1973-03-15 | 1976-10-08 | Calor Sa | |
| CN1600260A (en) * | 2003-09-28 | 2005-03-30 | 乐金电子(天津)电器有限公司 | Ejector of washer cabinet |
| ATE525008T1 (en) * | 2009-07-28 | 2011-10-15 | Electrolux Home Prod Corp | SPRAY ARM ASSEMBLY FOR DISHWASHER |
| CN103654666B (en) * | 2012-09-19 | 2016-08-10 | Lg电子株式会社 | Dish-washing machine |
| CN203709974U (en) * | 2013-06-05 | 2014-07-16 | 宁波方太厨具有限公司 | Rotary spraying arm for washing device and application of rotary spraying arm for washing device |
| CN104235061B (en) * | 2013-06-05 | 2015-06-10 | 宁波方太厨具有限公司 | Open type water pump |
| CN103908205A (en) * | 2014-04-17 | 2014-07-09 | 芜湖美的洗涤电器制造有限公司 | Spray arm of dish washing machine |
| CN204511989U (en) * | 2014-12-31 | 2015-07-29 | 宁波方太厨具有限公司 | A kind of open water pump and application have the water tank cleaner of this open water pump |
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2014
- 2014-12-31 CN CN201410848627.2A patent/CN104564838B/en active Active
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| CN104564838A (en) | 2015-04-29 |
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