CN108420365A - surface cleaner - Google Patents

surface cleaner Download PDF

Info

Publication number
CN108420365A
CN108420365A CN201810471090.0A CN201810471090A CN108420365A CN 108420365 A CN108420365 A CN 108420365A CN 201810471090 A CN201810471090 A CN 201810471090A CN 108420365 A CN108420365 A CN 108420365A
Authority
CN
China
Prior art keywords
sewage
clearer
water tank
conveying
conveying sewage
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.)
Pending
Application number
CN201810471090.0A
Other languages
Chinese (zh)
Inventor
李意
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Maan Time Electrical Technology Co Ltd
Original Assignee
Suzhou Maan Time Electrical Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Maan Time Electrical Technology Co Ltd filed Critical Suzhou Maan Time Electrical Technology Co Ltd
Priority to CN201810471090.0A priority Critical patent/CN108420365A/en
Publication of CN108420365A publication Critical patent/CN108420365A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28Floor-scrubbing machines, motor-driven
    • A47L11/282Floor-scrubbing machines, motor-driven having rotary tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036Parts or details of the surface treating tools
    • A47L11/4041Roll shaped surface treating tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408Means for supplying cleaning or surface treating agents
    • A47L11/4083Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408Means for supplying cleaning or surface treating agents
    • A47L11/4088Supply pumps; Spraying devices; Supply conduits

Landscapes

  • Cleaning In General (AREA)

Abstract

The invention discloses a kind of surface cleaners, including cleaning head, the cleaning head includes main body;The lower front of the main body is provided at least one clearer, and rear portion is provided with foul water tank;The clearer is driven by driving device to be rotated;It is provided with water sending device in the main body;The water sending device is connected to water tank, and the water in water tank can be delivered on the outer surface of clearer;Each clearer is corresponded in the main body is provided with conveying sewage device;The conveying sewage device can be rotated around its axle center;The upper back in corresponding clearer is arranged in the conveying sewage device, while the conveying sewage device at least partly submerges in corresponding clearer;When clearer rotates, corresponding conveying sewage device can be driven to rotate, while the sewage for cleaning roller surface can be got rid of away when conveying sewage device rotation, and sent to foul water tank;The present invention can recycle extra sewage, simple in structure to ensure surface to be cleaned rapid draing, at low cost.

Description

Surface cleaner
Technical field
The present invention relates to a kind of improvement of surface cleaner, refer in particular to it is a kind of extra sewage can be recycled, it is clear to ensure Face cleaning rapid draing, it is simple in structure, it is at low cost.
Background technology
In the prior art, Chinese patent CN201580055547.4 discloses a kind of surface cleaner and is used for table The method of face cleaner, disclosed surface cleaner include equipment body, cleaning head and driving device, the cloth on equipment body It is equipped with suction unit installation, at least one clearer is disposed on cleaning head and at least one pump orifice is located in cleaning head On, pump orifice connect and is associated at least one clearer in a manner of fluid matasomatism with suction unit installation, and driving device is used In the rotation driving at least one clearer, the wherein driving axis of the drive motor of driving device and at least one clearer Rotation axis laterally from one another, it is especially vertically oriented.Suction unit installation is provided in this surface cleaning machine, Dirty water collecting tank is arranged on handle, and suction unit installation is connected to dirty water collecting tank, and collects sewage, complicated, and at This height.
Thus we have developed it is a kind of extra sewage can be recycled, it is simple in structure to ensure surface to be cleaned rapid draing, It is at low cost.
Invention content
Provided the invention aims to overcome the deficiencies in the prior art it is a kind of extra sewage can be recycled, with protect Surface to be cleaned rapid draing is demonstrate,proved, it is simple in structure, it is at low cost.
In order to achieve the above objectives, the technical solution adopted by the present invention is:Surface cleaner, including cleaning head, the cleaning Head includes main body;The lower front of the main body is provided at least one clearer, and rear portion is provided with foul water tank;The clearer It is driven and is rotated by driving device;It is provided with water sending device in the main body;The water sending device is connected to water tank, can will be in water tank Water be delivered on the outer surface of clearer;Each clearer is corresponded in the main body is provided with conveying sewage device;It is described defeated Send sewage device that can be rotated around its axle center;The upper back in corresponding clearer, while institute is arranged in the conveying sewage device Conveying sewage device is stated at least partly to submerge in corresponding clearer;When clearer rotates, corresponding conveying sewage can be driven Device rotates, while can get rid of away the sewage for cleaning roller surface when conveying sewage device rotation, and send to foul water tank.
Preferably, the outer surface of the conveying sewage device is provided with ponding space, and the ponding space can be by sewage band It walks and pours out, send to foul water tank.
Preferably, the outer surface setting of the conveying sewage device is fluted, and sewage can be taken away and poured out by the groove, It send to foul water tank.
Preferably, the outer surface of the conveying sewage device is provided with the groove being distributed along its axis parallel, described recessed Sewage can be taken away and poured out by slot, send to foul water tank.
Preferably, the outer surface spiral shape distribution of the conveying sewage device is fluted, and the groove can take away sewage And pour out, it send to foul water tank.
Preferably, the outer surface of the conveying sewage device is provided with ponding hole, and the ponding hole can take away sewage simultaneously It pours out, send to foul water tank.
Preferably, the outer surface of the conveying sewage device is provided with raised line, the raised line and the outside for sending sewage device Sewage can be taken away and be poured out, and send to foul water tank in the ponding space of formation.
Preferably, the front of the conveying sewage device is provided with extension water bar, the conveying sewage device and extension water bar and There are one closed spaces for setting between the outer surface of corresponding clearer, and water bar is hung from the outer surface of clearer extension for gathering The sewage gone out, and can be given to foul water tank by conveying sewage device.
Preferably, the clearer has two, and is coaxially disposed, and is driven while being rotated by same driving device.
Preferably, water tank and battery component are provided on the cleaning head, the battery component is powered for driving device.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art:
Surface cleaning function of the present invention recycles extra sewage, usually clear to ensure surface to be cleaned rapid draing Face cleaning can be dried in 1 minute, simple in structure, at low cost.
Description of the drawings
Technical scheme of the present invention is further explained below in conjunction with the accompanying drawings:
Attached drawing 1 is the stereogram of the first embodiment of surface cleaner of the present invention;
Attached drawing 2 is the stereo amplification figure of the first embodiment of the cleaning head of surface cleaner of the present invention;
Attached drawing 3 is the backsight enlarged drawing of the first embodiment of the cleaning head of surface cleaner of the present invention;
Attached drawing 4 is the A-A sectional views of attached drawing 3;
Attached drawing 5 is the stereo amplification figure of the first embodiment when cleaning head of surface cleaner of the present invention removes upper cover;
Attached drawing 6 is that the solid of the first embodiment when cleaning head of the surface cleaner of the present invention removes upper cover and water sending device is put Big figure;
Attached drawing 7 is the stereo amplification figure of the first embodiment of the conveying sewage device of surface cleaner of the present invention;
Attached drawing 8 is the cutaway view Amplified image of the second embodiment of the cleaning head of surface cleaner of the present invention;
Wherein:1, cleaning head;2, fuselage;3, handle;4, water tank;11, main body;12, clearer;13, foul water tank;14, upper cover; 15, connector;16, water pipe;17, water sending device;18, sewage device is conveyed;19, water inlet;20, groove;21, water bar is hung.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
Attached drawing 1-7 is surface cleaner of the present invention, including cleaning head 1 and fuselage 2;The cleaning head 1 and fuselage 2 It is connected by connector 15;Water tank 4 is provided on the fuselage 2;Handle 3 is additionally provided on the fuselage 2.
The cleaning head 1 includes main body 11;The lower front of the main body 11 is provided with clearer 12, and rear portion is provided with dirt Water tank 13.
In the present embodiment, there are two the clearers 12, and is coaxially disposed, and is driven while being rotated by a driving device.
Each clearer 12 is corresponded in the main body 11 is provided with conveying sewage device 18;18 energy of conveying sewage device It is rotated around its axle center;The outer surface setting fluted 20 of the conveying sewage device 18;The setting of conveying sewage device 18 exists The upper back of corresponding clearer 12, while the conveying sewage device 18 at least partly submerges in corresponding clearer 12; When clearer 12 rotates, corresponding conveying sewage device 18 can be driven to rotate, can be incited somebody to action when the conveying sewage device 18 rotates The sewage on 12 surface of clearer is got rid of away, and sewage is taken away and poured out simultaneously also by groove 20, and along the upper surface of main body 11 The water inlet 19 on 13 top of foul water tank is flowed into, repeatedly, you can realize to the sewage collecting on clearer 12.
In the present embodiment, preferably scheme, an outer surface for the conveying sewage device 18 is provided with along its axial line The groove 20 of parallelly distribute on;Certain groove 20 can also be along the outer surface spiral shape distribution of conveying sewage device 18.
Certainly, when the outer surface of the conveying sewage device 18 is smooth surface, conveying sewage device 18 can also be utilized to rotate When the centrifugal force that generates sewage is thrown away, to realize the collection to sewage;It can also be in the outer surface of conveying sewage device 18 It is provided with ponding hole, while the centrifugal force generated when being rotated using conveying sewage device 18 is thrown away sewage, recycles ponding Sewage is taken away and is poured out by hole, and send to foul water tank 13.Can also the outer surface of conveying sewage device 18 be provided with raised line, profit While the centrifugal force generated when being rotated with conveying sewage device 18 throws away sewage, recycles raised line and send sewage device 18 Sewage is taken away and is poured out by the ponding space that outside is formed, and send to foul water tank 13.
The main body 11 is provided with water sending device 17;The water sending device 17 is connected to by water pipe 16 with water tank 13;It is described It is evenly equipped with apopore on water sending device 17(It is not shown), since the height of water tank 13 is higher than water sending device 17, using the gravity of water, Naturally it flows out, and is transported on the outer surface of clearer 12, in the present embodiment, the conveying of water is realized by the way of water clock;When Clearer 12 is driven by driving device when surface to be cleaned rolls, and can be cleaned to surface to be cleaned.
Water pump can certainly be utilized(It is not shown)The water of water tank 13 is sent to water sending device 17, at this point, since water pump produces Raw hydraulic pressure is big, and the mode that sprinkling may be used realizes the conveying of water.
In the present embodiment, the setting of the water sending device 17 covers conveying sewage device on 18 top of conveying sewage device 18。
Further, as shown in Fig. 8, the front of the conveying sewage device 18, which is provided with, hangs water bar 21, the conveying There are one closed spaces with setting between water bar 21 and the outer surface of corresponding clearer 12 is hung for sewage device 18, for gathering The sewage that water bar 21 is hung up from the outer surface of clearer 12 is hung, and can be sent to foul water tank 13 by conveying sewage device 18.
Upper cover 14 is provided in the main body 11, the upper cover 14 covers water sending device 17.
In the present embodiment, battery component is additionally provided on the fuselage 2(It is not shown), the battery component is driving device Power supply.
It is of course also possible to which water tank 4 and battery component are arranged on cleaning head 1.At this time due to water tank 4 and water sending device 17 is close, therefore can save outlet pipe, can directly be connected to water tank 4 with water sending device 17.
When work, clean cleaning water is housed in water tank 13;Driving device drives clearer 12 to rotate, and is being cleaned It is moved on face, the water in water tank 13 is transported to the outer surface of clearer 12 by water sending device 17, while clearer 12 moves Surface to be cleaned is cleaned, while utilizing the centrifugal force that the conveying rotation of sewage device 18 generates by the outer surface of clearer 12 Sewage is taken away, and can also be by conveying the promotion in the ponding space on 18 outer surface of sewage device, overturning and send to foul water tank 13.Through overtesting, the present invention program can recycle extra sewage, to ensure surface to be cleaned rapid draing, usual surface to be cleaned It can be dried in 1 minute.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art:
Surface cleaning function of the present invention recycles extra sewage, usually clear to ensure surface to be cleaned rapid draing Face cleaning can be dried in 1 minute, simple in structure, at low cost.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and be implemented, and it is not intended to limit the scope of the present invention, all according to the present invention Equivalent change or modification made by Spirit Essence should all cover within the scope of the present invention.

Claims (10)

1. surface cleaner, including cleaning head, the cleaning head includes main body;The lower front of the main body is provided at least one A clearer, rear portion are provided with foul water tank;The clearer is driven by driving device to be rotated;Being provided in the main body send water to fill It sets;The water sending device is connected to water tank, and the water in water tank can be delivered on the outer surface of clearer;It is characterized in that:Institute It states and corresponds to each clearer in main body and be provided with conveying sewage device;The conveying sewage device can be rotated around its axle center;It is described The upper back in corresponding clearer is arranged in conveying sewage device, while the conveying sewage device at least partly submerges correspondence Clearer in;When clearer rotates, corresponding conveying sewage device can be driven to rotate, while the conveying sewage device revolves The sewage for cleaning roller surface can be got rid of away, and be sent to foul water tank when turning.
2. surface cleaner according to claim 1, it is characterised in that:The outer surface of the conveying sewage device is provided with Sewage can be taken away and poured out, send to foul water tank by ponding space, the ponding space.
3. surface cleaner according to claim 2, it is characterised in that:The outer surface of the conveying sewage device is provided with Sewage can be taken away and poured out, send to foul water tank by groove, the groove.
4. surface cleaner according to claim 3, it is characterised in that:The outer surface of the conveying sewage device is provided with Along the groove of its axis parallel distribution, sewage can be taken away and poured out, send to foul water tank by the groove.
5. surface cleaner according to claim 3, it is characterised in that:The outer surface spiral shape of the conveying sewage device It is distributed fluted, sewage can be taken away and poured out by the groove, send to foul water tank.
6. surface cleaner according to claim 2, it is characterised in that:The outer surface of the conveying sewage device is provided with Sewage can be taken away and poured out, send to foul water tank by ponding hole, the ponding hole.
7. surface cleaner according to claim 2, it is characterised in that:The outer surface of the conveying sewage device is provided with Raised line, the raised line and send the ponding space that the outside of sewage device is formed, and sewage can be taken away and be poured out, and send to sewage Case.
8. surface cleaner according to claim 1, it is characterised in that:The front of the conveying sewage device is provided with extension Water bar, described convey are arranged between sewage device and extension water bar and the outer surface of corresponding clearer there are one closed space, For gathering the sewage hung water bar and hung up from the outer surface of clearer, and can be sent to foul water tank by conveying sewage device.
9. surface cleaner according to claim 1, it is characterised in that:The clearer has two, and is coaxially disposed, by Same driving device drives while rotating.
10. surface cleaner according to claim 1, it is characterised in that:It is provided with water tank and battery on the cleaning head Component, the battery component are powered for driving device.
CN201810471090.0A 2018-05-17 2018-05-17 surface cleaner Pending CN108420365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810471090.0A CN108420365A (en) 2018-05-17 2018-05-17 surface cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810471090.0A CN108420365A (en) 2018-05-17 2018-05-17 surface cleaner

Publications (1)

Publication Number Publication Date
CN108420365A true CN108420365A (en) 2018-08-21

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ID=63163355

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN108420365A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109008834A (en) * 2018-09-11 2018-12-18 苏州毫安时电器科技有限公司 A kind of electric mop
CN109199223A (en) * 2018-08-22 2019-01-15 珠海格力电器股份有限公司 Scrubbing brush subassembly and dust catcher
CN113455974A (en) * 2020-03-31 2021-10-01 莱克电气股份有限公司 Cleaning device
CN114190834A (en) * 2021-07-23 2022-03-18 杭州乐秀电子科技有限公司 Cleaning appliance

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AT200291B (en) * 1957-11-23 1958-10-25 Josef Sen Grasmann Floor cleaning machine
US2969556A (en) * 1957-11-23 1961-01-31 Grasmann Josef Floor cleaning machine
JPH0255027A (en) * 1988-08-19 1990-02-23 Kubota Ltd Cleaner
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WO2008138767A1 (en) * 2007-05-11 2008-11-20 BSH Bosch und Siemens Hausgeräte GmbH Device for treating processing and/or cleaning of surfaces
CN202636836U (en) * 2012-05-03 2013-01-02 贺新华 Floor cleaning device
CN102940473A (en) * 2012-12-06 2013-02-27 深圳市圳远塑胶模具有限公司 Mopping and seeping integration cleaning robot
KR20150000141U (en) * 2013-07-02 2015-01-12 칭―치 린 electric sweeping washing device
EP2842473A2 (en) * 2013-08-29 2015-03-04 Eric Hardman Cleaning unit and method for deep cleaning of hall floors
CN104674743A (en) * 2015-02-13 2015-06-03 郑应力 Method and device for collecting sewage water generated by cleaning
CN204500570U (en) * 2015-03-11 2015-07-29 谢小溪 The wheeled mop of a kind of multifunctional rolling
DE102015104751A1 (en) * 2015-03-27 2016-09-29 Miele & Cie. Kg Hand-operated or autonomous floor cleaner
DE102015104759A1 (en) * 2015-03-27 2016-09-29 Miele & Cie. Kg Hand-operated or autonomous floor cleaner
CN106235966A (en) * 2016-08-04 2016-12-21 深圳星鸿云科技有限公司 A kind of clean robot
WO2018024660A1 (en) * 2016-08-04 2018-02-08 Vorwerk & Co. Interholding Gmbh Wet cleaning appliance having a cleaning roller
CN209360586U (en) * 2018-05-17 2019-09-10 苏州毫安时电器科技有限公司 Surface cleaner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT200291B (en) * 1957-11-23 1958-10-25 Josef Sen Grasmann Floor cleaning machine
US2969556A (en) * 1957-11-23 1961-01-31 Grasmann Josef Floor cleaning machine
JPH0255027A (en) * 1988-08-19 1990-02-23 Kubota Ltd Cleaner
CN2681675Y (en) * 2004-03-05 2005-03-02 张基国 Track-mounted ground surface cleaning machine
KR100729343B1 (en) * 2006-02-01 2007-06-19 (주)보라텍 An automatic cleaning system for an auto-toilet floor and method for cleaning thereof
WO2008138767A1 (en) * 2007-05-11 2008-11-20 BSH Bosch und Siemens Hausgeräte GmbH Device for treating processing and/or cleaning of surfaces
CN202636836U (en) * 2012-05-03 2013-01-02 贺新华 Floor cleaning device
CN102940473A (en) * 2012-12-06 2013-02-27 深圳市圳远塑胶模具有限公司 Mopping and seeping integration cleaning robot
KR20150000141U (en) * 2013-07-02 2015-01-12 칭―치 린 electric sweeping washing device
EP2842473A2 (en) * 2013-08-29 2015-03-04 Eric Hardman Cleaning unit and method for deep cleaning of hall floors
CN104674743A (en) * 2015-02-13 2015-06-03 郑应力 Method and device for collecting sewage water generated by cleaning
CN204500570U (en) * 2015-03-11 2015-07-29 谢小溪 The wheeled mop of a kind of multifunctional rolling
DE102015104751A1 (en) * 2015-03-27 2016-09-29 Miele & Cie. Kg Hand-operated or autonomous floor cleaner
DE102015104759A1 (en) * 2015-03-27 2016-09-29 Miele & Cie. Kg Hand-operated or autonomous floor cleaner
CN106235966A (en) * 2016-08-04 2016-12-21 深圳星鸿云科技有限公司 A kind of clean robot
WO2018024660A1 (en) * 2016-08-04 2018-02-08 Vorwerk & Co. Interholding Gmbh Wet cleaning appliance having a cleaning roller
WO2018024125A1 (en) * 2016-08-04 2018-02-08 深圳星鸿云科技有限公司 Cleaning robot
CN209360586U (en) * 2018-05-17 2019-09-10 苏州毫安时电器科技有限公司 Surface cleaner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109199223A (en) * 2018-08-22 2019-01-15 珠海格力电器股份有限公司 Scrubbing brush subassembly and dust catcher
CN109008834A (en) * 2018-09-11 2018-12-18 苏州毫安时电器科技有限公司 A kind of electric mop
WO2020052177A1 (en) * 2018-09-11 2020-03-19 苏州毫安时电器科技有限公司 Electric mop
CN113455974A (en) * 2020-03-31 2021-10-01 莱克电气股份有限公司 Cleaning device
CN114190834A (en) * 2021-07-23 2022-03-18 杭州乐秀电子科技有限公司 Cleaning appliance
CN114190834B (en) * 2021-07-23 2023-01-24 杭州乐秀电子科技有限公司 Cleaning appliance

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