CN109171567A - A kind of sweeper suitable for cleaning on a large scale - Google Patents

A kind of sweeper suitable for cleaning on a large scale Download PDF

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Publication number
CN109171567A
CN109171567A CN201810955143.6A CN201810955143A CN109171567A CN 109171567 A CN109171567 A CN 109171567A CN 201810955143 A CN201810955143 A CN 201810955143A CN 109171567 A CN109171567 A CN 109171567A
Authority
CN
China
Prior art keywords
sweeper
cleaning
motor
pipe
round brush
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.)
Withdrawn
Application number
CN201810955143.6A
Other languages
Chinese (zh)
Inventor
潘孝雯
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.)
Jiangsu Longjie Automation Technology Co Ltd
Original Assignee
Jiangsu Longjie Automation 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 Jiangsu Longjie Automation Technology Co Ltd filed Critical Jiangsu Longjie Automation Technology Co Ltd
Priority to CN201810955143.6A priority Critical patent/CN109171567A/en
Publication of CN109171567A publication Critical patent/CN109171567A/en
Withdrawn legal-status Critical Current

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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
    • A47L11/24Floor-sweeping machines, motor-driven
    • 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
    • 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
    • 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
    • A47L11/4038Disk 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
    • A47L11/4036Parts 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
    • A47L11/4088Supply pumps; Spraying devices; Supply conduits

Landscapes

  • Cleaning In General (AREA)

Abstract

The invention discloses a kind of sweepers suitable for cleaning on a large scale, it is related to sweeper technical field, including sweeper ontology, the side inner wall upper end of the sweeper ontology is fixedly installed with first motor, the other side inner wall upper end of the sweeper ontology is fixedly installed with the second motor, the bottom of the first motor and the second motor is fixedly connected to air blower, horizontal pipeline and pipe tunnel, the inside that the horizontal pipeline and pipe tunnel are fixedly mounted on are equipped with below the first motor and the second motor.This is suitable for the sweeper cleaned on a large scale, pass through being used cooperatively for two sides brush and round brush, comprehensive cleaning can be carried out to the ground below sweeper, effectively increase the cleaning range of sweeper, pass through the opposite spray head of setting direction, ground when energy while the work of opposite side brush and round brush is rinsed, and the needs for meeting by cleaning raised dust on a large scale and cleaning on a large scale can be effectively reduced.

Description

A kind of sweeper suitable for cleaning on a large scale
Technical field
The present invention relates to sweeper technical field, specially a kind of sweeper suitable for cleaning on a large scale.
Background technique
Sweeper is a kind of burnisher, is divided into hand-push type floor sweeper and two kinds of driving type road sweeper, is a kind of relatively more first Into floor sweeping tool.Sweeper be will sweep the floor, the integrated refuse sweeping equipment that dust suction combines, have work efficiency is high, clearly The advantages that clean at low cost, cleaning effect is good, and security performance is high, and economic rate of return is high, and use scope is wide.Electric sweeper energy-saving ring It protects, usage amount is more and more, while noise is smaller, and squelch is suitble to clean.
A kind of sweeper disclosed in 206080410 U of Chinese invention patent application prospectus CN, this is swept the floor Machine is rotated although driving side to brush to the inner tail of sweeper by two the second motors, so that dust and rubbish be passed through It crosses suction inlet to be drawn into dust collecting box, cleaning effect is good, still, in the case where needing a wide range of clean, also has Clean the disadvantage that the time is long, cleaning range is small.
Currently, it is existing for cleaning the sweeper on ground, it is inconvenient for use, it is unfavorable for promoting the use of.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of sweeper suitable for cleaning on a large scale, solves existing For cleaning the sweeper on ground, the problem of range is small, it is long to clean the time and takes time and effort is cleaned.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of to sweep the floor suitable for what is cleaned on a large scale Machine, including sweeper ontology, the side inner wall upper end of the sweeper ontology are fixedly installed with first motor, the sweeper sheet The other side inner wall upper end of body is fixedly installed with the second motor, and the bottom of the first motor and the second motor is fixedly connected to It is equipped with horizontal pipeline and pipe tunnel below air blower, the first motor and the second motor, the horizontal pipeline and vertical The inside being fixedly mounted on to pipeline, the lower end of the air blower run through the top of horizontal pipeline and are located at the interior of horizontal pipeline Portion, the bottom end of the horizontal pipeline are fixedly connected with the top of pipe tunnel, and sweeper ontology is run through in the bottom end of the pipe tunnel Bottom and be plugged in side brush middle part;
The upper center of the sweeper ontology is fixedly installed with water tank, and the top side of the water tank is hinged with tank lid, institute It states and is fixedly installed with filter screen in the middle part of water tank, the bottom of the water tank is fixedly connected with dust cover, the sweeper ontology Round brush is connected in the middle part of lower end, the round brush is located at the lower section of dust cover, one end axle center of the round brush and the second motor Side be fixedly connected, the two sides of the round brush are equipped with dustbin, and the dustbin is between round brush and pipe tunnel, institute The two sides outer wall lower end for stating water tank is fixedly connected to soft water pipe, and the soft water pipe is fixedly connected with far from one end of water tank Hard water pipe, the bottom end of the hard water pipe sequentially pass through the top and bottom of dustbin and fix with the top side of sparge pipe Connection, the sparge pipe are located at the lower section of sweeper ontology, and the two sides of the sparge pipe are fixedly installed with spray head.
Preferably, the front of the dustbin is equipped with suction garbage can door, bottom end and the sweeper ontology of the suction garbage can door Positive bottom end is hinged, and the top of the suction garbage can door is fixedly installed with handle, and the dustbin is offered close to the side of round brush Opening, the dustbin are plugged with one end of horizontal pipeline far from the side of round brush.
Preferably, the sparge pipe is located between side brush and round brush, and the sparge pipe is horizontally disposed, the sparge pipe two The spray head of side is opposite with the position of side brush and round brush respectively.
Preferably, the hard water pipe is vertically arranged, and is fixedly installed with valve in the middle part of the soft water pipe.
Preferably, the top of the sweeper ontology is set there are two cover, and two covers are located at two valves Top.
Preferably, be fixedly installed with support transverse slat in the middle part of the sweeper ontology, the support transverse slat be located at water tank with Between dust cover, the bottom end of the dust cover is arc.
(3) beneficial effect
The present invention provides a kind of sweeper suitable for cleaning on a large scale, have it is following the utility model has the advantages that
(1), the sweeper that cleans on a large scale should be suitable for, that brushes when by the round brush that is arranged between brush at two with two matches It closes and uses, comprehensive cleaning can be carried out to the ground below sweeper, effectively increases the cleaning range of sweeper.
(2), the sweeper that should be suitable for cleaning on a large scale, passes through setting sparge pipe and contrary spray head, energy Ground when opposite side brush and round brush work simultaneously is rinsed, and can be effectively reduced by cleaning raised dust on a large scale, be accorded with Close the needs cleaned on a large scale.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is sectional view of the invention.
In figure: 1 sweeper ontology, 2 first motors, 3 second motors, 4 air blowers, 5 horizontal pipelines, 6 pipe tunnels, 7 sides Brush, 8 water tanks, 9 tank lid, 10 filter screens, 11 dust covers, 12 round brush, 13 dustbins, 14 soft water pipes, 15 hard water pipes, 16 sprays Water pipe, 17 spray heads, 18 suction garbage can doors, 19 handles, 20 openings, 21 valves, 22 covers, 23 support transverse slats.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", " perpendicular Directly ", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", etc. instructions orientation or positional relationship be side based on the figure Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection ", Terms such as " fixations " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection;It can be mechanical connect It connects;It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of sweeper suitable for cleaning on a large scale, including The side inner wall upper end of sweeper ontology 1, sweeper ontology 1 is fixedly installed with first motor 2, the other side of sweeper ontology 1 Inner wall upper end is fixedly installed with the second motor 3, and the bottom of first motor 2 and the second motor 3 is fixedly connected to air blower 4, and The lower section of one motor 2 and the second motor 3 is equipped with horizontal pipeline 5 and pipe tunnel 6, and horizontal pipeline 5 and pipe tunnel 6 are fixed It is mounted on 1 inside, top of the lower end through horizontal pipeline 5 and the inside positioned at horizontal pipeline 5 of air blower 4, horizontal pipeline 5 Bottom end be fixedly connected with the top of pipe tunnel 6, the bottom end of pipe tunnel 6 through sweeper ontology 1 bottom and be plugged in side Brush 7 middle part, while brush 7 lower section rubbish while brush 7 and air blower 4 under the action of can sequentially enter pipe tunnel 6 and transverse direction Pipeline 5 enters finally into dustbin 13;
The upper center of sweeper ontology 1 is fixedly installed with water tank 8, and the top side of water tank 8 is hinged with tank lid 9, water tank 8 Middle part is fixedly installed with filter screen 10, and the bottom of water tank 8 is fixedly connected with dust cover 11, lives in the middle part of the lower end of sweeper ontology 1 Dynamic to be connected with round brush 12, round brush 12 is located at the lower section of dust cover 11, and one end axle center of round brush 12 and the side of the second motor 3 are fixed Connection, the two sides of round brush 12 are equipped with dustbin 13, and dustbin 13 is between round brush 12 and pipe tunnel 6, the two sides of water tank 8 Outer wall lower end is fixedly connected to soft water pipe 14, and soft water pipe 14 is fixedly connected with hard water pipe 15 far from one end of water tank 8, The bottom end of hard water pipe 14 sequentially passes through the top and bottom of dustbin 13 and is fixedly connected with the top side of sparge pipe 16, spray Water pipe 16 is located at the lower section of sweeper ontology 1, and the two sides of sparge pipe 16 are fixedly installed with spray head 17, by brushing on two sides The round brush 12 being arranged between 7 is used cooperatively with two sides brush 7, and comprehensive cleaning can be carried out to the ground below sweeper, The cleaning range for effectively increasing sweeper, by setting sparge pipe 16 and contrary spray head 17, energy while opposite side Ground when brush 7 and round brush 12 work is rinsed, and can be effectively reduced by cleaning raised dust on a large scale, be met big model Enclose the needs of cleaning.
As a preferred technical solution of the present invention: the front of dustbin 13 is equipped with suction garbage can door 18, suction garbage can door 18 Bottom end and sweeper ontology 1 positive bottom end it is hinged, the top of suction garbage can door 18 is fixedly installed with handle 19, and dustbin 13 leans on The side of nearly round brush 12 offers opening 20, and dustbin 13 is plugged with one end of horizontal pipeline 5, round brush far from the side of round brush 12 12 rubbish cleaned can enter in dustbin 13 from opening 20.
As a preferred technical solution of the present invention: sparge pipe 16 is located between side brush 7 and round brush 12, and sparge pipe 16 Horizontally disposed, the spray head 17 of 16 two sides of sparge pipe is opposite with the position of side brush 7 and round brush 12 respectively, is arranged in this way, sprays The ground spray water under 17 energy of head while opposite side brush 7 and round brush 12, effectively sedimentation dust are drenched, cleaning effect is improved.
As a preferred technical solution of the present invention: hard water pipe 15 is vertically arranged, and the middle part of soft water pipe 14 is fixed Valve 21 is installed, valve 21 is used to open horizontal pipeline 5 and closes horizontal pipeline 5.
As a preferred technical solution of the present invention: the top of sweeper ontology 1 is set there are two cover 22, two covers 22 are located at the top of two valves 21, open cover 22, can control the on and off of valve 21.
As a preferred technical solution of the present invention: the middle part of sweeper ontology 1 is fixedly installed with support transverse slat 23, branch Transverse slat 23 is supportted between water tank 8 and dust cover 11, the bottom end of dust cover 11 is arc, by the way that dust cover 11 is arranged to arc Shape can preferably protect the cleaning at 12 top floor-cleaning machine position of round brush.
In conclusion the sweeper that should be suitable for cleaning on a large scale, in use, pouring into clear water in water tank 8 or living useless Water covers tank lid 9, and the impurity in water rests on the top of water tank 8 by the filtering of filter screen 10, and stream is by filter screen 10 Water is flowed out from the bottom end two sides of water tank 8, is opened two covers 22, is unscrewed two valves 21 under two covers 22, then cover Cover 22 starts first motor 2 and the second motor 3, and side brush 7 and round brush 12 are started to work, and side brush 7 arrives the refuse sweeping of surrounding The bottom of side brush 7, under the blowing force of air blower 4, the rubbish under side brush 7 enters horizontal pipeline 5 from pipe tunnel 6, then from cross It is entered in dustbin 13 to the junction of pipeline 5 and dustbin 13, round brush 12 can brush two sides in the rubbish between 7 from rubbish The opening of case 13 is taken in dustbin 13, and during cleaning, the water in water tank 8 can successively pass through soft water pipe 14 and hard Water pipe 15 is flowed into sparge pipe 16, and the lower section of side brush 7 and round brush 12, opposite side brush 7 and round brush are then sprayed onto through spray head 17 The dust taken up when 12 work is settled, and dust cover 11 can protect sweeper body, so that it is kept cleaning, when cleaning finishes Afterwards, first motor 2 and the second motor 3 are closed, two covers 22 are opened, closes two corresponding valves 21, finally opens two Suction garbage can door 18 cleans up the rubbish of the inside.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in second feature It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact "up" or "down". Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or tiltedly Top, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section " and " following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than Two features.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (6)

1. a kind of sweeper suitable for cleaning on a large scale, including sweeper ontology (1), it is characterised in that: the sweeper sheet The side inner wall upper end of body (1) is fixedly installed with first motor (2), and the other side inner wall upper end of the sweeper ontology (1) is solid Dingan County is equipped with the second motor (3), and the bottom of the first motor (2) and the second motor (3) is fixedly connected to air blower (4), Horizontal pipeline (5) and pipe tunnel (6), the horizontal pipeline are equipped with below the first motor (2) and the second motor (3) (5) and pipe tunnel (6) be fixedly mounted on 1 inside, the top of horizontal pipeline (5) is run through in the lower end of the air blower (4) And it is located at the inside of horizontal pipeline (5), the bottom end of the horizontal pipeline (5) is fixedly connected with the top of pipe tunnel (6), described vertical Through the bottom of sweeper ontology (1) and the middle part for brushing (7) in side is plugged in the bottom end of pipeline (6);
The upper center of the sweeper ontology (1) is fixedly installed with water tank (8), and the top side of the water tank (8) is hinged with Tank lid (9) is fixedly installed with filter screen (10) in the middle part of the water tank (8), and the bottom of the water tank (8) is fixedly connected with anti- The lower end middle part of dust hood (11), the sweeper ontology (1) is connected with round brush (12), and the round brush (12) is located at dust cover (11) one end axle center of lower section, the round brush (12) is fixedly connected with the side of the second motor (3), and the two of the round brush (12) Side is equipped with dustbin (13), and the dustbin (13) is located between round brush (12) and pipe tunnel (6), the water tank (8) Two sides outer wall lower end is fixedly connected to soft water pipe (14), and the one end of the soft water pipe (14) far from water tank (8) is fixed to be connected Be connected to hard water pipe (15), the bottom end of the hard water pipe (14) sequentially pass through the top and bottom of dustbin (13) and with water spray The top side of pipe (16) is fixedly connected, and the sparge pipe (16) is located at the lower section of sweeper ontology (1), the sparge pipe (16) Two sides be fixedly installed with spray head (17).
2. a kind of sweeper suitable for cleaning on a large scale according to claim 1, it is characterised in that: the dustbin (13) front is equipped with suction garbage can door (18), and the bottom end of the suction garbage can door (18) and the positive bottom end of sweeper ontology (1) are cut with scissors It connects, the top of the suction garbage can door (18) is fixedly installed with handle (19), side of the dustbin (13) close to round brush (12) It offers opening (20), the dustbin (13) is plugged with one end of horizontal pipeline (5) far from the side of round brush (12).
3. a kind of sweeper suitable for cleaning on a large scale according to claim 1, it is characterised in that: the sparge pipe (16) it is located between side brush (7) and round brush (12), and the sparge pipe (16) is horizontally disposed, the spray of sparge pipe (16) two sides It is opposite with the position of side brush (7) and round brush (12) respectively to drench head (17).
4. a kind of sweeper suitable for cleaning on a large scale according to claim 1, it is characterised in that: the hard water pipe (15) it is vertically arranged, is fixedly installed with valve (21) in the middle part of the soft water pipe (14).
5. a kind of sweeper suitable for cleaning on a large scale according to claim 1, it is characterised in that: the sweeper sheet The top of body (1) is set there are two cover (22), and two covers (22) are located at the top of two valves (21).
6. a kind of sweeper suitable for cleaning on a large scale according to claim 1, it is characterised in that:
Support transverse slat (23) is fixedly installed in the middle part of the sweeper ontology (1), the support transverse slat (23) is located at water tank (8) Between dust cover (11), the bottom end of the dust cover (11) is arc.
CN201810955143.6A 2018-08-21 2018-08-21 A kind of sweeper suitable for cleaning on a large scale Withdrawn CN109171567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810955143.6A CN109171567A (en) 2018-08-21 2018-08-21 A kind of sweeper suitable for cleaning on a large scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810955143.6A CN109171567A (en) 2018-08-21 2018-08-21 A kind of sweeper suitable for cleaning on a large scale

Publications (1)

Publication Number Publication Date
CN109171567A true CN109171567A (en) 2019-01-11

Family

ID=64919247

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810955143.6A Withdrawn CN109171567A (en) 2018-08-21 2018-08-21 A kind of sweeper suitable for cleaning on a large scale

Country Status (1)

Country Link
CN (1) CN109171567A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112869657A (en) * 2021-02-03 2021-06-01 深圳市杉川机器人有限公司 Scrubbing brush subassembly and have its scrubber
CN114287849A (en) * 2021-12-30 2022-04-08 广东博智林机器人有限公司 Cleaning device and cleaning equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112869657A (en) * 2021-02-03 2021-06-01 深圳市杉川机器人有限公司 Scrubbing brush subassembly and have its scrubber
CN114287849A (en) * 2021-12-30 2022-04-08 广东博智林机器人有限公司 Cleaning device and cleaning equipment

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WW01 Invention patent application withdrawn after publication

Application publication date: 20190111

WW01 Invention patent application withdrawn after publication