US20220202268A1 - Down-pressure mopping type sweeping robot - Google Patents

Down-pressure mopping type sweeping robot Download PDF

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Publication number
US20220202268A1
US20220202268A1 US17/607,394 US201917607394A US2022202268A1 US 20220202268 A1 US20220202268 A1 US 20220202268A1 US 201917607394 A US201917607394 A US 201917607394A US 2022202268 A1 US2022202268 A1 US 2022202268A1
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US
United States
Prior art keywords
pressure
sweeper
water tank
hook
lower shell
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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
US17/607,394
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English (en)
Inventor
Shengle Wang
Rui Liu
Yongbing Feng
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.)
Dreame Innovation Technology Suzhou Co Ltd
Original Assignee
Dreame Innovation Technology Suzhou 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 Dreame Innovation Technology Suzhou Co Ltd filed Critical Dreame Innovation Technology Suzhou Co Ltd
Assigned to Dreame Innovation Technology (Suzhou) Co., Ltd. reassignment Dreame Innovation Technology (Suzhou) Co., Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, Yongbing, LIU, RUI, WANG, Shengle
Publication of US20220202268A1 publication Critical patent/US20220202268A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4002—Installations of electric equipment
    • A47L11/4005—Arrangements of batteries or cells; Electric power supply arrangements
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4027—Filtering or separating contaminants or debris
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4036—Parts or details of the surface treating tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the utility model relates to a technical field of sweeping robots, in particular to a down-pressure mopping type sweeping robot.
  • automatic cleaning devices such as automatic sweeping robots, automatic mopping robots, and so on.
  • the automatic cleaning devices can automatically perform cleaning operations, which is convenient for users.
  • the automatic sweeping robots realize automatic cleaning of the area to be cleaned through technologies such as direct brushing, vacuum cleaning, water tank spraying, and rag wiping.
  • a rag used for mopping is usually fixed at a bottom of a sweeper water tank, and the rag is attached to the ground to be cleaned by relying on the gravity of the sweeper water tank and the water stored in the sweeper water tank. As the water stored in the sweeper water tank continuously to flow out, the pressure of the rag to clean the ground will gradually weaken. In the end, the rag floats on the ground and it is difficult to clean the ground.
  • the present utility model provides a down-pressure mopping type sweeping robot.
  • a down-pressure mopping type sweeping robot comprising:
  • a sweeper body comprising a battery pack installed inside the sweeper body and a mounting portion formed at a bottom of the sweeper body, a protrusion portion being formed in the mounting portion;
  • a sweeper water tank detachably installed in the mounting portion for wetting a ground to be cleaned during a mopping process, a bottom of the sweeper water tank being fixed with a rag through a sticky-and-hook strap;
  • both sides of an inside of the sweeper body are fixed with down-pressure assemblies by bolts;
  • the down-pressure assembly comprises a down-pressure protrusion capable of elastically protruding into the mounting portion; and the down-pressure protrusion is elastically pressed downwardly on a top of the sweeper water tank so that the rag can be stably pressed against the ground to be cleaned.
  • the down-pressure assembly comprises:
  • a turning plate having a hollow shell structure, one end of the turning plate being hingedly mounted on a bottom of the lower shell through a turning block, a second hook being formed at the one end of the turning plate;
  • down-pressure protrusions are formed on a bottom side of the other end of the turning plate; a first turning limit block is formed on the other end of the turning plate; and a second turning limit block corresponding to a position of the first turning limit block is formed on an inner side of the lower shell.
  • a first lower shell fixing ear plate is formed at the one end of the lower shell, and a second lower shell fixing ear plate is formed at the other end of the lower shell;
  • an upper shell fixing ear plate is formed at one end of the upper shell
  • the bolt is capable of passing through the upper shell fixing ear plate and the first lower shell fixing ear plate in sequence in order to fix one end of the down-pressure assembly in the sweeper body; and wherein the bolt is capable of passing through the second lower shell fixing ear plate in order to fix the other end of the down-pressure assembly in the sweeper body.
  • a recessed portion is formed on a top of the sweeper water tank, and mounting slots are formed on both sides of the recessed portion;
  • mounting inserts are formed on both sides of the protrusion portion, and the mounting inserts are capable of being inserted into the mounting slots so that the protrusion portion is introduced and installed in the recessed portion.
  • both sides of the sweeper water tank are formed with lock installation cavities, a lock is slidably installed in the lock installation cavity;
  • an L-shaped positioning cavity is formed on the lock, a lock positioning block is fixed at one end of an inner side of the L-shaped positioning cavity, and a lock positioning plate is formed at the other end of the inner side of the L-shaped positioning cavity;
  • a hook is also formed at the other end of the inner side of the L-shaped positioning cavity
  • a lock limiting plate is fixedly disposed in the lock installation cavity, a return spring is installed between the lock limiting plate and the lock positioning block;
  • a front side of the sweeper water tank comprises two water tank installation grooves communicating with the two lock installation cavities, respectively;
  • a first hook and a second hook are formed in the mounting portion which is located on both sides of the protrusion portion, and the first hook and the second hook are capable of passing through the water tank installation grooves and are correspondingly hooked to the two hooks.
  • a water storage cavity and an energized cavity are sealedly formed in the sweeper water tank;
  • a filter device and a water outlet pipe are fixedly disposed in the water storage cavity, a water pump and a first energizing piece and a second energizing piece for transmitting power to the water pump are fixedly disposed in the energized cavity;
  • a water inlet hose and a water outlet hose are installed on the water pump, and the water inlet hose and the water outlet hose both extend into the water storage cavity;
  • the water inlet hose and the filter device are in communication, and the water outlet hose and the water outlet pipe are in communication;
  • a plurality of drain channels are opened at a bottom of the water outlet pipe.
  • the bottom of the sweeper water tank comprises a plurality of drain holes which are in sealed communication with the plurality of drain channels;
  • the rag is disposed at a bottom of the plurality of drain holes.
  • a bottom of the sweeper water tank is formed with a wheel cover recessed into the water storage cavity; and a bottom of the wheel cover is provided with a walking wheel for supporting the movement of the sweeper water tank on a bottom surface of the work.
  • first energizing piece and the second energizing piece are both embedded and fixed in a top of the sweeper water tank;
  • a bottom of the down-pressure protrusion is fixed with a down-pressure charging piece, the two down-pressure charging pieces are correspondingly energized and connected to the first energizing piece and the second energizing piece;
  • a conductive plate which is electrically connected to the down-pressure charging piece is fixed inside the turning plate, and the two conductive plates are electrically connected to the battery pack.
  • a plurality of reinforcing ribs are formed inside the turning plate.
  • the upper shell located on top of the first hook comprises an inspection hole
  • the lower shell located on top of the conductive plate comprises a wire hole
  • beneficial effects of the utility model include: the down-pressure mopping type sweeping robot provided by the utility model can continuously provide downward pressure to the sweeper water tank through the down-pressure protrusion, so that the rag can be stably pressed on the ground to be cleaned. This effectively solves the problem that the pressure on the ground to be cleaned by the rag is gradually weakened due to the continuous outflow of water in the sweeper water tank.
  • the water pump is integrated and installed in the sweeper water tank, and the pump is supplied with electricity through the down-pressure charging piece, the first energizing piece and the second energizing piece which are fixed at the bottom of the two down-pressure protrusions. This greatly optimizes the spatial arrangement of the sweeper water tank and the sweeper body, making the overall structure of the sweeping robot more compact, and improving its practicability and aesthetics.
  • FIG. 1 is a schematic view of an overall structure of the utility model
  • FIG. 2 is a schematic view of the installation of a down-pressure assembly of the utility model
  • FIG. 3 is a schematic view of the installation of the sweeper water tank of the utility model
  • FIG. 4 is a schematic view of a bottom structure of a sweeper body of the utility model
  • FIG. 5 is a schematic view of an overall structure of the down-pressure assembly of the utility model
  • FIG. 6 is a schematic view of an internal structure of the down-pressure assembly of the utility model
  • FIG. 7 is a schematic view of an overall structure of the sweeper water tank of the utility model.
  • FIGS. 8 to 9 are schematic views of an internal structure of the sweeper water tank of the utility model.
  • FIG. 10 is a schematic view of the installation of a lock of the utility model.
  • the present utility model provides a down-pressure mopping type sweeping robot, including:
  • a sweeper body 9 including a battery pack installed inside the sweeper body 9 and a mounting portion 90 formed at a bottom of the sweeper body 9 , a protrusion portion 900 being formed in the mounting portion 90 ;
  • a sweeper water tank 1 detachably installed in the mounting portion 90 for wetting a ground to be cleaned during a mopping process, a bottom of the sweeper water tank 1 being fixed with a rag through a sticky-and-hook strap;
  • the down-pressure assembly 8 includes a down-pressure protrusion 836 capable of elastically protruding into the mounting portion 90 ; and the down-pressure protrusion 836 is elastically pressed downwardly on a top of the sweeper water tank 1 so that the rag can be stably pressed against the ground to be cleaned.
  • the down-pressure assembly 8 includes:
  • a turning plate 83 having a hollow shell structure, one end of the turning plate 83 being hingedly mounted on a bottom of the lower shell 82 through a turning block 830 , a second hook 832 being formed at the one end of the turning plate 83 ;
  • down-pressure protrusions 836 are formed on a bottom side of the other end of the turning plate 83 ; a first turning limit block 833 is formed on the other end of the turning plate 83 ; and a second turning limit block 823 corresponding to a position of the first turning limit block 833 is formed on an inner side of the lower shell 82 .
  • a first lower shell fixing ear plate 821 is formed at the one end of the lower shell 82
  • a second lower shell fixing ear plate 822 is formed at the other end of the lower shell 82 ;
  • an upper shell fixing ear plate 811 is formed at one end of the upper shell 81 ;
  • the bolt is capable of passing through the upper shell fixing ear plate 811 and the first lower shell fixing ear plate 821 in sequence in order to fix one end of the down-pressure assembly 8 in the sweeper body 9 ; and wherein the bolt is capable of passing through the second lower shell fixing ear plate 822 in order to fix the other end of the down-pressure assembly 8 in the sweeper body 9 .
  • a recessed portion 10 is formed on a top of the sweeper water tank 1 , and mounting slots 100 are formed on both sides of the recessed portion 10 ;
  • mounting inserts 901 are formed on both sides of the protrusion portion 900 , and the mounting inserts 901 are capable of being inserted into the mounting slots 100 so that the protrusion portion 900 is introduced and installed in the recessed portion 10 .
  • both sides of the sweeper water tank 1 are formed with lock installation cavities, a lock 51 is slidably installed in the lock installation cavity;
  • an L-shaped positioning cavity 510 is formed on the lock 51 , a lock positioning block 511 is fixed at one end of an inner side of the L-shaped positioning cavity 510 , and a lock positioning plate 513 is formed at the other end of the inner side of the L-shaped positioning cavity 510 ;
  • a hook 512 is also formed at the other end of the inner side of the L-shaped positioning cavity 510 ;
  • a lock limiting plate 14 is fixedly disposed in the lock installation cavity, a return spring 15 is installed between the lock limiting plate 14 and the lock positioning block 511 ;
  • a front side of the sweeper water tank 1 includes two water tank installation grooves 131 communicating with the two lock installation cavities, respectively;
  • a first hook 91 and a second hook 92 are formed in the mounting portion 90 which is located on both sides of the protrusion portion 900 , and the first hook 91 and the second hook 92 are capable of passing through the water tank installation grooves 131 and are correspondingly hooked to the two hooks 512 .
  • a water storage cavity 101 and an energized cavity 102 are sealedly formed in the sweeper water tank 1 ;
  • a filter device 61 and a water outlet pipe 72 are fixedly disposed in the water storage cavity 101
  • a water pump 60 and a first energizing piece 41 and a second energizing piece 42 for transmitting power to the water pump 60 are fixedly disposed in the energized cavity 102 ;
  • a water inlet hose 621 and a water outlet hose 622 are installed on the water pump 60 , and the water inlet hose 621 and the water outlet hose 622 both extend into the water storage cavity 101 ;
  • the water inlet hose 621 and the filter device 61 are in communication, and the water outlet hose 622 and the water outlet pipe 72 are in communication;
  • a plurality of drain channels 722 are opened at a bottom of the water outlet pipe 72 .
  • the bottom of the sweeper water tank 1 includes a plurality of drain holes 21 which are in sealed communication with the plurality of drain channels 722 ;
  • the rag is disposed at a bottom of the plurality of drain holes 21 .
  • a bottom of the sweeper water tank 1 is formed with a wheel cover 20 recessed into the water storage cavity 101 .
  • a bottom of the wheel cover 20 is provided with a walking wheel 22 for supporting the movement of the sweeper water tank 1 on a bottom surface of the work.
  • the first energizing piece 41 and the second energizing piece 42 are both embedded and fixed in a top of the sweeper water tank 1 ;
  • a bottom of the down-pressure protrusion 836 is fixed with a down-pressure charging piece 834 , the two down-pressure charging pieces 834 are correspondingly energized and connected to the first energizing piece 41 and the second energizing piece 42 ;
  • a conductive plate 835 which is electrically connected to the down-pressure charging piece 834 is fixed inside the turning plate 83 , and the two conductive plates 835 are electrically connected to the battery pack.
  • a plurality of reinforcing ribs 831 are formed inside the turning plate 83 .
  • the upper shell 81 located on top of the first hook 812 includes an inspection hole 810
  • the lower shell 82 located on top of the conductive plate 835 includes a wire hole 820 .
  • the sweeper body 9 pushes the sweeper water tank 1 to move on the bottom surface of the working through its walking mechanism.
  • the sweeping robot controls the operation of the water pump 60 .
  • the water stored in the water storage cavity 101 sequentially passes through the filter device 61 , the water inlet hose 621 , the water pump 60 , the water outlet hose 622 , the water outlet pipe 72 , and the drain channel 722 , and is finally led to the rag through the drain holes 21 , and then moisten the floor with the rag with clean water.
  • the down-pressure protrusions 836 can continuously press the sweeper water tank 1 , so that the rag can be stably pressed on the ground to be cleaned.
  • the down-pressure charging pieces 834 fixed at the bottom of the two down-pressure protrusions 836 can be correspondingly energized and connected to the first energizing piece 41 and the second energizing piece 42 , in order to realize the normal operation of the water pump 60 driven by the power of the battery pack.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Manipulator (AREA)
US17/607,394 2019-08-15 2019-11-22 Down-pressure mopping type sweeping robot Pending US20220202268A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201910753522.1 2019-08-15
CN201910753522.1A CN110353582B (zh) 2019-08-15 2019-08-15 一种下压拖地式扫地机器人
PCT/CN2019/120428 WO2021027178A1 (zh) 2019-08-15 2019-11-22 一种下压拖地式扫地机器人

Publications (1)

Publication Number Publication Date
US20220202268A1 true US20220202268A1 (en) 2022-06-30

Family

ID=68223916

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/607,394 Pending US20220202268A1 (en) 2019-08-15 2019-11-22 Down-pressure mopping type sweeping robot

Country Status (8)

Country Link
US (1) US20220202268A1 (ja)
EP (1) EP4014828A4 (ja)
JP (1) JP7291849B2 (ja)
KR (1) KR20220047565A (ja)
CN (1) CN110353582B (ja)
AU (1) AU2019461015A1 (ja)
CA (1) CA3145808A1 (ja)
WO (1) WO2021027178A1 (ja)

Cited By (7)

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USD978464S1 (en) * 2021-01-04 2023-02-14 Beijing Roborock Technology Co., Ltd. Sweeping robot
USD985867S1 (en) * 2021-03-05 2023-05-09 Beijing Roborock Technology Co., Ltd. Robotic vacuum cleaner
USD990080S1 (en) * 2021-03-11 2023-06-20 Beijing Xiaomi Mobile Software Co., Ltd. Intelligent sweeping robot
USD990802S1 (en) * 2021-08-05 2023-06-27 Shenzhen Haitao Optimization Technology Co., Ltd. Sweeping robot
USD999470S1 (en) * 2021-02-10 2023-09-19 Beijing Roborock Technology Co., Ltd. Supporting plate for cleaning pad for robotic vacuum cleaner
USD1017155S1 (en) * 2022-04-02 2024-03-05 Dongguan Pinjia Intelligent Technology Co., Ltd Robot vacuum cleaner
USD1019029S1 (en) * 2021-05-17 2024-03-19 Bissell Inc. Autonomous floor cleaner

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CN110353582B (zh) * 2019-08-15 2023-10-27 追觅创新科技(苏州)有限公司 一种下压拖地式扫地机器人
CN112773263A (zh) * 2019-11-10 2021-05-11 佛山市云米电器科技有限公司 扫地机器人
CN111449580A (zh) * 2020-05-22 2020-07-28 深圳市伽利略机器人有限公司 一种可控制持续出水的拖地机器人
CN115500734B (zh) * 2022-09-23 2024-01-30 深圳市八达威科技有限公司 一种带分体式激光雷达的扫地机

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD978464S1 (en) * 2021-01-04 2023-02-14 Beijing Roborock Technology Co., Ltd. Sweeping robot
USD999470S1 (en) * 2021-02-10 2023-09-19 Beijing Roborock Technology Co., Ltd. Supporting plate for cleaning pad for robotic vacuum cleaner
USD985867S1 (en) * 2021-03-05 2023-05-09 Beijing Roborock Technology Co., Ltd. Robotic vacuum cleaner
USD990080S1 (en) * 2021-03-11 2023-06-20 Beijing Xiaomi Mobile Software Co., Ltd. Intelligent sweeping robot
USD1019029S1 (en) * 2021-05-17 2024-03-19 Bissell Inc. Autonomous floor cleaner
USD990802S1 (en) * 2021-08-05 2023-06-27 Shenzhen Haitao Optimization Technology Co., Ltd. Sweeping robot
USD1017155S1 (en) * 2022-04-02 2024-03-05 Dongguan Pinjia Intelligent Technology Co., Ltd Robot vacuum cleaner

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CA3145808A1 (en) 2021-02-18
AU2019461015A1 (en) 2022-02-24
CN110353582B (zh) 2023-10-27
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WO2021027178A1 (zh) 2021-02-18
CN110353582A (zh) 2019-10-22

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