CN102505425A - Drainage pump with sealing structure, and washing machine with drainage pump - Google Patents
Drainage pump with sealing structure, and washing machine with drainage pump Download PDFInfo
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- CN102505425A CN102505425A CN2011103417906A CN201110341790A CN102505425A CN 102505425 A CN102505425 A CN 102505425A CN 2011103417906 A CN2011103417906 A CN 2011103417906A CN 201110341790 A CN201110341790 A CN 201110341790A CN 102505425 A CN102505425 A CN 102505425A
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Abstract
The invention discloses a drainage pump with a sealing structure. The sealing structure is arranged at an inlet of the drainage pump. The sealing structure is a water storage chamber provided with a round floating valve. The round floating valve comprises a floating ball and a valve cavity. The top of the valve cavity communicates with a water inlet on the bottom of an outer cylinder. The size of the water inlet is smaller than the diameter of the floating ball. At least a drainage port communicating with the water storage chamber is arranged on the bottom and/or side of the valve cavity. The floating ball moves up and down in the valve cavity under buoyancy force, such that the opening/closing of the round floating valve is realized. Also, the invention discloses a washing machine with the drainage pump. With the drainage pump with the sealing structure and the washing machine with the drainage pump, when water is delivered in during a clothes washing procedure, novel water can be prevented from being mixed with refluxed washing water, such that germs and mould generated in the refluxed water are prevented from entering the clothes, thus secondary pollution to the clothes is prevented. Also, when water is delivered in, washing powder is prevented from being flushed into the outer cylinder and a drainage pump connection pipe, such that washing powder wasting is avoided, and cleaning ratio is improved.
Description
Technical field
The present invention relates to a kind of draining pump structure, design a kind of washing machine that has the draining pump of water sealing structure and this draining pump is housed especially.
Background technology
Present roller washing machine is the linker structure because of drainpipe, draining pump, urceolus, urceolus to pump drain pipe, can't effectively realize down draining, and the residual water after the washing is discharged in the sewer fully.Therefore at present roller washing machine basically all adopts drainage pattern, just can discharge after in drainage procedure, will water being risen to certain height, when draining pump quits work; Water in the drainpipe can reflux; Causing in the washing machine can remaining a part of water, when this part water retains in washing machine, and will breed bacteria and mould; The stylish water that advances of intaking again of washing clothes next time will mix with original water; The germ, the mould that grew in the originally remaining water will enter into clothes, and clothes is polluted, and Along with people's is increasingly high to the demand of environmentally-friendly sanitary; Fundamentally avoid washing machine to the secondary pollution of washings and the angle that user's health is responsible for, the cleaning difficult problem of washing machine internal environment has been one and has pressed for the problem of capturing.
Traditional roller washing machine, the drainage pattern of employing all are in the bottom of urceolus water discharge outlet to be arranged, and are connected to a scupper hose on the water discharge outlet; Draining pump is contained in the preceding bottom of housing, draining pump and urceolus is connected together the external drainpipe of draining pump through scupper hose; Drainpipe is suspended to eminence, just can water be discharged into certain height through draining pump like this, and the height of general water discharge outlet is at 60-120cm; The diameter of drainpipe about 25mm, the remaining about 300-600ml of water in the drainpipe like this and since linker about; These water will accumulate in the drainpipe of outer tube bottom, even some water can arrive in the urceolus.These water are exactly maximum secondary pollution source.Prior art has and is disclosed in urceolus and installs a ball float additional to the connection flexible pipe of draining pump, when draining pump quits work, shifts ball float the water discharge outlet place of urceolus onto through buoyancy of water when the water in the drainpipe refluxes, and blocks water discharge outlet and prevents that water from flowing to inner core.
And in fact technique scheme can not prevent really that the bacterium mould is back in the urceolus, because use in the water inlet process in next time, because the pressure of water can be higher than the pressure in the drainage connecting pipe in the tube; Therefore the position of ball float will change; The water of breed bacteria mould will enter into urceolus, equally clothing is carried out secondary pollution, and the position of this scheme ball float is uncontrollable; Along with the change location of water is a change at random, so reality is difficult to play stagnant water effect.
In addition; China application CN200820036892.0 discloses a kind of discharge structure of roller washing machine anti-return; Between draining pump outlet hose 1 and draining pump outlet 2, anti-reflux valve 3 is set; This anti-reflux valve diameter equals the internal diameter of draining pump outlet, is connected with draining pump through anchor clamps one end, and the other end is connected with drainpipe.Washing machine in draining, because the pressure of draining makes the diaphragm seal 4 in the anti-reflux valve also establish naturally along the tracks rising in the outer tube 5 of anti-reflux valve, forms a passage after washing, make smooth draining.When draining stops, because the pressure that water refluxes in the drainpipe closely cooperates the diaphragm seal 4 and interior pipe 6 outer rims of anti-reflux valve, inner spout being sealed up, anti-sealing is back in the pipeline.Technique scheme can play the effect that prevents that washings from refluxing to a certain extent, but aspect structure and stagnant water effect, all remains to improve and promote.
In view of this spy provides the present invention.
Summary of the invention
First purpose of the present invention is to overcome existing washing machine structure and is difficult to solve the technical problem that washings reflux; Through the draining pump structure is improved; A kind of draining pump that has water sealing structure is provided; With the stylish water that advances of the water inlet that prevents to do washing and the washings mixing of backflow, make the germ, the mould that grow in the recirculation water enter into clothes, clothes is carried out secondary pollution.
For realizing first purpose, the present invention adopts following technical scheme:
A kind of draining pump that has water sealing structure; The water inlet of draining pump is equipped with water sealing structure, and described water sealing structure is the reservoir chamber that is provided with circular float valve, and this circle float valve comprises ball float and valve pocket; The top of said valve pocket communicates with the water inlet of outer tube bottom, and described water inlet is less than floating ball diameter; Described valve pocket at least in the bottom and/or sidepiece be provided with the water discharge outlet of leading to reservoir chamber, described ball float moves up and down in valve pocket after receiving buoyancy, realizes the On/Off of circular float valve.
Described valve pocket bottom is provided with the water discharge outlet of leading to reservoir chamber or is provided with the water discharge outlet of leading to reservoir chamber in a side of valve pocket at least.
The gross area of said water discharge outlet is not less than water inlet.
After washing procedure began, washings got into reservoir chamber from water inlet via circular float valve, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, made that urceolus completely cuts off with draining pump in the washing process.
After washing procedure finishes, draining pump work, thus the ball float of loss of buoyance descends and water inlet is opened open circular float valve, and washings drain into reservoir chamber via the water discharge outlet of circular float valve and are pumped out from water inlet; When draining pump quits work, recirculation water is full of reservoir chamber, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, makes under the non-washing state urceolus and draining pump isolated.
Described reservoir chamber volume is 150-400ml, preferred 300ml.
Described water inlet is provided with sealing ring.
Described water inlet is provided with filter, and described filter is grid or screen cloth, and the grid gap of grid is not less than 1mm, and sieve number is not more than 40 orders.
Second purpose of the present invention is to protect another kind to have the draining pump of water sealing structure; Between draining pump and urceolus, water sealing structure is installed; Described water sealing structure is the sealing valve that is arranged between draining pump and the urceolus, and the opening time of said sealing valve is no earlier than draining pump start-up time; The shut-in time of sealing valve is not later than the draining pump shut-in time.
Described sealing valve and draining pump are the integrated design.
The 3rd purpose of the present invention is to provide a kind of washing machine that above-mentioned draining pump is housed, and described washing machine is roller washing machine or rotary drum washing machine.
Below in conjunction with accompanying drawing draining pump structure of the present invention is done further to finish in detail.
The invention provides a kind of draining pump that has water sealing structure; Through this water sealing structure effectively prevent the to do washing stylish water that advances of water inlet and the washings mixing of backflow; Make the germ, the mould that grow in the recirculation water will enter into clothes, clothes is carried out secondary pollution.In the time of can also effectively preventing simultaneously into water washing powder is punched into urceolus and draining pump tube connector, the washing powder that avoids waste improves and cleans ratio.
As one embodiment of the present invention, at the water inlet of draining pump water sealing structure is installed, this water sealing structure is the reservoir chamber that is provided with circular float valve.Circular float valve of the present invention is a kind of sealing valve that is made up of ball float and valve pocket, realizes the On/Off of self in the position of valve pocket thereby its buoyancy that utilizes the water of reservoir chamber that ball float is produced changes ball float.
Described reservoir chamber connects the pump head of draining pump and the water inlet of urceolus below, is preferably a rectangle spatial accommodation.Circular float valve is arranged in the reservoir chamber, is preferably disposed between water inlet and the pump head.Shown in accompanying drawing 1, the top of valve pocket communicates with water inlet, and valve pocket bottom and/or sidepiece are provided with the water discharge outlet of leading to reservoir chamber, and above-mentioned water inlet is less than floating ball diameter, can block water inlet fully after ball float is risen; Described circular float valve is provided with the water discharge outlet of leading to reservoir chamber in a side of valve pocket bottom and/or valve pocket at least.After float valve was opened, washings drained into reservoir chamber from water inlet via the water discharge outlet of float valve, are pumped by draining pump again.
Particularly, ball float moves up and down in valve pocket after receiving buoyancy, realizes the On/Off of circular float valve.
After washing procedure began, washings got into reservoir chamber from water inlet via circular float valve, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, made that urceolus completely cuts off with draining pump in the washing process.
After washing procedure finishes, draining pump work, the ball float of loss of buoyance descends, thus water inlet open and open circular float valve, washings drain into reservoir chamber via the water discharge outlet of circular float valve and are pumped out from water inlet; When draining pump quits work, recirculation water is full of reservoir chamber, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, makes under the non-washing state urceolus and draining pump isolated.
The water discharge outlet of said valve pocket can only be arranged on valve pocket bottom, also can only be arranged on the sidepiece of valve pocket, as long as after satisfying the ball float loss of buoyance and leaving water inlet, washings can be discharged from water discharge outlet and got final product.In order to obtain better drainage effect, the present invention can also be provided with water discharge outlet in the sidepiece and the bottom of valve pocket simultaneously, in order to guarantee the speed of draining as far as possible, is not less than water inlet with the gross area of water discharge outlet and is advisable.The design of water discharge outlet can be adopted the multiple mode of prior art, and as adopting 3-6 bar retaining muscle, perhaps mesh-like structure etc. specifically is as the criterion with the open function that can realize circular float valve.
The size of valve pocket and the volume of ball float adapt, and in valve pocket, move up and down after making ball float receive buoyancy.Ball float adopts then that existing technical scheme gets final product in the prior art among the present invention.
Be enough to close circular float valve to the water inlet with ball float is floating in order to guarantee to wash the water that finishes to reflux the back; Realize Expected Results, the present invention has done specific aim research to the volume of reservoir chamber, and the result shows; When the reservoir chamber volume is 150-400ml; During preferred 300ml, can guarantee that washing finishes the back recirculation water and can circular float valve cut out, also can guarantee that washing machine structure is compact simultaneously.
In order to prevent that the situation of leaking from possibly appear in the position that urceolus is connected with reservoir chamber, the present invention is provided with sealing ring in the water inlet.Simultaneously be provided with filter in the water inlet, described filter is grid or screen cloth, and the grid gap of grid is not less than 1mm, and sieve number is not more than 40 orders.Concrete set-up mode is grasped by those skilled in the art.
As another embodiment of the invention, the draining pump that has water sealing structure of the present invention can be installed water sealing structure between draining pump and urceolus, and this water sealing structure is the sealing valve that is arranged between draining pump and the urceolus particularly.This structure does not need the extra reservoir chamber that is provided with, and adopts existing urceolus to pump drain pipe to connect draining pump and urceolus, and in fact draining pump, urceolus to pump drain pipe, outer drainpipe, urceolus are separated into two zones by the sealing valve at this moment; The size of separating two zones receives the determining positions of sealing valve, because in the draining pump course of work, under the situation that especially water in the urceolus has been arranged; Water is driven down by the centrifugal force of draining pump impeller and is discharged to basically in the outer drainpipe, so the position of sealing valve can be arranged on the optional position between urceolus and the draining pump, can separate; Also can fit together; Preferred sealing valve and draining pump are designed to one from the compact of structure, and the installation site is on urceolus; Directly be connected with the urceolus water discharge outlet, the residual water of so effective minimizing is back in the urceolus.
Adopt this structure,, therefore can directly drainpipe be put into and insert in the floor drain, thoroughly stop the possibility that residual water refluxes owing to be the linker mode no longer.Washing machine can be realized drain function easily, can realize down drain function again.The work way of this embodiment is promptly controlled the opening and closing time of this sealing valve, makes opening time of said sealing valve be no earlier than draining pump start-up time; The shut-in time of sealing valve is not later than the draining pump shut-in time.When washing machine needs draining, start draining pump earlier, open the sealing valve again, make originally to be stored in the water emptying between outer drainpipe and the sealing valve, when draining finishes soon, close the sealing valve earlier, close draining pump again, avoid producing recirculation water as far as possible.
In addition, the present invention also requires to protect a kind of washing machine that above-mentioned draining pump is housed, and this washing machine both can be a roller washing machine, also can be rotary drum washing machine.Owing to adopted above-mentioned two kinds of draining pumps that have water sealing structure, therefore, the washing machine that the present invention requires to protect can thoroughly solve recirculation water and cause the secondary pollution problem to clothing.The present invention is simple in structure, and is cheap, suitable applying.
Description of drawings
The structural representation of Fig. 1 draining pump of the present invention;
The structural representation of Fig. 2 draining pump of the present invention;
The main element explanation
1 draining pump, 2 reservoir chambers, 3 ball floats, 4 valve pockets, 5 water inlets, 6 water discharge outlet
7 urceolus, 8 sealing valves, 9 drainpipes, 10 outer drainpipes.
The specific embodiment
Draining pump 1 as shown in Figure 1, its water inlet is equipped with water sealing structure, and this water sealing structure is the reservoir chamber 2 that is provided with circular float valve.Circular float valve is the sealing valve that is made up of ball float 3 and valve pocket 4, realizes the On/Off of self in the position of valve pocket 4 thereby its buoyancy that utilizes the water of reservoir chamber 2 that ball float 3 is produced changes ball float 3.
Reservoir chamber 2 connects the pump head of draining pump 1 and the water inlet 5 of urceolus below.Circular float valve is arranged in the reservoir chamber 2.Shown in accompanying drawing 1, the top of valve pocket 4 communicates with water inlet 5, and valve pocket 4 bottoms are provided with the water discharge outlet 6 (being 6 non-closed retaining muscle) of leading to reservoir chamber, and wherein water inlet 5 is less than ball float 3 diameters, can block water inlet 5 fully after ball float 3 is risen.After circular float valve was opened, washings drained into reservoir chamber 2 from water inlet 5 via the water discharge outlet 6 of circular float valve, are pumped by draining pump 1 again.
After washing procedure began, washings got into reservoir chamber 2 from water inlet 5 via circular float valve, and ball float 3 receives and rises to water inlet 5 places behind the buoyancy and close circular float valve, made that urceolus completely cuts off with draining pump 1 in the washing process.
After washing procedure finishes, draining pump 1 work, the ball float 3 of loss of buoyance descends, thus water inlet 5 open and open circular float valve, washings drain into reservoir chamber 2 via the water discharge outlet 6 of circular float valve and are pumped out from water inlet 5; When draining pump 1 quits work, recirculation water is full of reservoir chamber 2, and ball float 3 receives and rises to water inlet 5 places behind the buoyancy and close circular float valve, makes urceolus and draining pump 1 isolated.
Wherein water discharge outlet 6 adopts the setting of 4 retaining muscle to form, and after ball float 3 left water inlet 5, washings were flowed out by the gap between the retaining muscle, drain into reservoir chamber 2.
The reservoir chamber volume is 300ml in the present embodiment.
In order to prevent that the situation of leaking from possibly appear in the position that urceolus is connected with reservoir chamber 2, present embodiment is provided with sealing ring (not identifying among the figure) at water inlet 5 places.Be provided with filter (not identifying among the figure) simultaneously at water inlet 5 places, described filter is a screen cloth, and sieve number is not more than 40 orders.
Draining pump in the present embodiment makes the germ, the mould that grow in the recirculation water will enter into clothes through water sealing structure effectively prevent the to do washing stylish water that advances of water inlet and the washings mixing of backflow, and clothes is carried out secondary pollution.In the time of can also effectively preventing simultaneously into water washing powder is punched into urceolus and draining pump tube connector, the washing powder that avoids waste improves and cleans ratio.
Embodiment 2
Compare with embodiment 1, distinctive points only is: the water discharge outlet of valve pocket is positioned at the sidepiece of valve pocket in the present embodiment.Filter is a grid, and the grid gap of grid is not less than 1mm.
Embodiment 3
Compare with embodiment 1, distinctive points only is: the water discharge outlet of valve pocket is positioned at the bottom and the sidepiece of valve pocket in the present embodiment.
Embodiment 4
Of Fig. 2, in the present embodiment, between draining pump 1 and urceolus 7, water sealing structure is installed, this water sealing structure is the sealing valve 8 that is arranged between draining pump 1 and the urceolus 7 particularly.Urceolus to pump drain pipe 9 connects draining pump 1 and urceolus 7; In fact draining pump 1, urceolus to pump drain pipe 9, outer drainpipe 10, urceolus 7 are separated into two zones by sealing valve 8 at this moment, and the size of separating two zones receives the determining positions of sealing valve 8, because in draining pump 1 course of work; Especially under the situation that the water in the urceolus 7 has been arranged; Water is driven down by the centrifugal force of draining pump 1 impeller and is discharged to basically in the outer drainpipe 10, so the position of sealing valve 8 can be arranged on the optional position between urceolus 7 and the draining pump 1, on the compactedness of structure; Sealing valve 8 is designed to one with draining pump 1; The installation site directly is connected with the urceolus water discharge outlet on urceolus 7, and the residual water of so effective minimizing is back in the urceolus 7.
Adopt this structure,, therefore can directly outer drainpipe 10 be put into and insert in the floor drain, thoroughly stop the possibility that residual water refluxes owing to be the linker mode no longer.Washing machine can be realized drain function easily, can realize down drain function again.The work way of this embodiment is promptly controlled the opening and closing time of this sealing valve 8, makes opening time of said sealing valve 8 be no earlier than 1 start-up time of draining pump; The shut-in time of sealing valve 8 is not later than 1 shut-in time of draining pump.When washing machine needs draining, start draining pump 1 earlier, open sealing valve 8 again, make originally to be stored in the water emptying between outer drainpipe 10 and the sealing valve 8, when draining finishes soon, close sealing valve 8 earlier, close draining pump 1 again, avoid producing recirculation water as far as possible.
Embodiment 5
A kind of roller washing machine comprises inner core, urceolus, drive unit and embodiment 1 described draining pump.
Embodiment 6
A kind of rotary drum washing machine comprises interior bucket, outer bucket, drive unit and embodiment 2 described draining pumps.
Embodiment in the foregoing description can further make up or replace; And embodiment describes the preferred embodiments of the present invention; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design philosophy of the present invention, the various changes and modifications that the professional and technical personnel makes technical scheme of the present invention in this area all belong to protection scope of the present invention.
Claims (10)
1. draining pump that has water sealing structure; It is characterized in that: the water inlet at draining pump is equipped with water sealing structure; Described water sealing structure is the reservoir chamber that is provided with circular float valve; This circle float valve comprises ball float and valve pocket, and the top of said valve pocket communicates with the water inlet of outer tube bottom, and described water inlet is less than floating ball diameter; Described valve pocket at least in the bottom and/or sidepiece be provided with the water discharge outlet of leading to reservoir chamber, described ball float moves up and down in valve pocket after receiving buoyancy, realizes the On/Off of circular float valve.
2. draining pump according to claim 1 is characterized in that: described valve pocket bottom is provided with the water discharge outlet of leading to reservoir chamber or is provided with the water discharge outlet of leading to reservoir chamber in a side of valve pocket at least.
3. draining pump according to claim 1; It is characterized in that: after washing procedure begins; Washings get into reservoir chamber from water inlet via circular float valve, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, make that urceolus completely cuts off with draining pump in the washing process.
4. draining pump according to claim 1; It is characterized in that: after washing procedure finishes; Draining pump work, thus the ball float of loss of buoyance descends and water inlet is opened open circular float valve, and washings drain into reservoir chamber via the water discharge outlet of circular float valve and are pumped out from water inlet; When draining pump quits work, recirculation water is full of reservoir chamber, and ball float receives and rises to the water inlet behind the buoyancy and close circular float valve, makes under the non-washing state urceolus and draining pump isolated.
5. according to each described draining pump of claim 1-4, it is characterized in that: described reservoir chamber volume is 150-400ml.
6. according to each described draining pump of claim 1-4, it is characterized in that: described water inlet is provided with sealing ring.
7. according to each described draining pump of claim 1-4, it is characterized in that: described water inlet is provided with filter, and described filter is grid or screen cloth, and the grid gap of grid is not less than 1mm, and sieve number is not more than 40 orders.
8. draining pump that has water sealing structure, it is characterized in that: between draining pump and urceolus, water sealing structure is installed, described water sealing structure is the sealing valve that is arranged between draining pump and the urceolus, the opening time of said sealing valve is no earlier than draining pump start-up time; The shut-in time of sealing valve is not later than the draining pump shut-in time.
9. draining pump according to claim 1 is characterized in that: described sealing valve and draining pump are the integrated design.
10. washing machine that is equipped with like claim 1 or 8 said draining pumps, it is characterized in that: described washing machine is rotary drum washing machine or roller washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341790.6A CN102505425B (en) | 2011-11-02 | 2011-11-02 | A kind of draining pump with water sealing structure and the washing machine equipped with this draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341790.6A CN102505425B (en) | 2011-11-02 | 2011-11-02 | A kind of draining pump with water sealing structure and the washing machine equipped with this draining pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102505425A true CN102505425A (en) | 2012-06-20 |
| CN102505425B CN102505425B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110341790.6A Active CN102505425B (en) | 2011-11-02 | 2011-11-02 | A kind of draining pump with water sealing structure and the washing machine equipped with this draining pump |
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| CN (1) | CN102505425B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104858708A (en) * | 2015-04-11 | 2015-08-26 | 温州日丰科技有限公司 | Numerical control lathe automatic water adding system |
| CN108368664A (en) * | 2015-12-09 | 2018-08-03 | Bsh家用电器有限公司 | Method for running household appliance and household appliance |
| WO2019007395A1 (en) * | 2017-07-07 | 2019-01-10 | 青岛海尔洗衣机有限公司 | Draining pump and washing machine using same |
| CN112878004A (en) * | 2021-01-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Washing machine |
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| CN101838913A (en) * | 2009-07-01 | 2010-09-22 | 南京乐金熊猫电器有限公司 | Control method of clothes washing device |
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| JPH10231941A (en) * | 1997-02-20 | 1998-09-02 | Kitz Corp | Ball check valve |
| US6167733B1 (en) * | 1998-06-30 | 2001-01-02 | Daewoo Electronics Co., Ltd. | Drum type washing machine having a pump integrally formed with a filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104858708A (en) * | 2015-04-11 | 2015-08-26 | 温州日丰科技有限公司 | Numerical control lathe automatic water adding system |
| CN108368664A (en) * | 2015-12-09 | 2018-08-03 | Bsh家用电器有限公司 | Method for running household appliance and household appliance |
| WO2019007395A1 (en) * | 2017-07-07 | 2019-01-10 | 青岛海尔洗衣机有限公司 | Draining pump and washing machine using same |
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| CN109208271B (en) * | 2017-07-07 | 2023-12-12 | 天津海尔洗涤电器有限公司 | Draining pump and washing machine using same |
| CN112878004A (en) * | 2021-01-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102505425B (en) | 2016-06-01 |
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Effective date of registration: 20160706 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Drum Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Drum Washing Machine Co., Ltd. |