US20230354990A1 - Brushroll, floor brush, and floor cleaning device - Google Patents

Brushroll, floor brush, and floor cleaning device Download PDF

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Publication number
US20230354990A1
US20230354990A1 US18/140,634 US202318140634A US2023354990A1 US 20230354990 A1 US20230354990 A1 US 20230354990A1 US 202318140634 A US202318140634 A US 202318140634A US 2023354990 A1 US2023354990 A1 US 2023354990A1
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US
United States
Prior art keywords
brush strip
segment
brush
strip
rolling body
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
US18/140,634
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English (en)
Inventor
Chaoliang Ma
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.)
Shenzhen Bazhao Technology Co Ltd
Original Assignee
Shenzhen Bazhao 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 Shenzhen Bazhao Technology Co Ltd filed Critical Shenzhen Bazhao Technology Co Ltd
Assigned to Shenzhen Bazhao Technology Co., Ltd. reassignment Shenzhen Bazhao Technology Co., Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MA, CHAOLIANG
Publication of US20230354990A1 publication Critical patent/US20230354990A1/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/001—Cylindrical or annular brush bodies
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/026—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
    • 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
    • A47L11/38—Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
    • 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
    • A47L11/4041—Roll shaped 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/30—Brushes for cleaning or polishing
    • A46B2200/3033—Household brush, i.e. brushes for cleaning in the house or dishes

Definitions

  • the present disclosure relates to the technical field of floor cleaning devices, and in particular to a brushroll, a floor brush, and a floor cleaning device.
  • the floor brush generally includes an outer housing and a brushroll arranged in the outer housing.
  • the brushroll can rotate on its axis to collect rubbish such as dust, paper scraps, and hair, and then, the rubbish are collected under a negative pressure, so that the floor cleaning effect is achieved.
  • rubbish such as dust, paper scraps, and hair
  • the brushroll has a lower cleaning efficiency when cleaning the floor and the entangled hair needs to be removed manually and regularly thus causing an inconvenience during use.
  • An objective of the present disclosure is to provide a brushroll, a floor brush, and a floor cleaning device, to solve the above technical problem.
  • the present disclosure provides a brushroll, including a rolling body and a plurality of brush strip sets, where the plurality of brush strip sets extend along an axial direction of the rolling body and are arranged at intervals along a circumferential direction of the rolling body;
  • the brush strip set includes a first brush strip and a second brush strip; both the first brush strip and the second brush strip are protruded from an outer surface of the rolling body, and are continuous along the axial direction of the rolling body; and a circumferential spacing between the first brush strip and the second brush strip in a same one of the brush strip sets is less than a circumferential spacing between two adjacent ones of the brush strip sets.
  • the present disclosure provides a floor brush, including an outer housing, the brushroll and a scraping strip, where the outer housing is provided with an accommodating cavity and a suction channel mouth communicating with the accommodating cavity; the brushroll is provided in the accommodating cavity and is configured to rotate; the scraping strip is fixed between the brushroll and the suction channel mouth; and at least one of the first brush strip and the second brush strip can be cooperated with the scraping strip under rotation of the rolling body to separate entangled hair through the scraping strip.
  • the present disclosure provides a floor cleaning device, including a body and the floor brush, where the floor brush is provided on the body.
  • the embodiment of the present disclosure has at least the following beneficial effects.
  • the floor brush and the floor cleaning device when the rolling body rotates along a direction, the first brush strip rolls up hair.
  • the hair can be supported on the first brush strip and captured by the adjacent second brush strip. Since a circumferential spacing between the first brush strip and the second brush strip in a same brush strip set is less than a circumferential spacing between two adjacent brush strip sets, the two adjacent brush strip sets are not too close to cause the large supporting area and capturing force of the hair and the entanglement of the hair. This can be understood as that an area for suspending the rolled hair can be enlarged by increasing the circumferential spacing between the two adjacent brush strip sets.
  • the hair can be separated from the brush strip sets effectively and more easily when sucked by a negative pressure. Additionally, since the first brush strip and the second brush strip are continuous along the axial direction of the rolling body, the hair cannot be embedded into roots of the first brush strip and the second brush strip. This reduces a resistance when the hair is sucked by the negative pressure, and lowers a risk of entanglement of the hair.
  • FIG. 1 is a structural schematic view of a floor brush according to an embodiment of the present disclosure
  • FIG. 2 is a structural schematic view from another viewing angle of the floor brush in FIG. 1 ;
  • FIG. 3 is a structural schematic view of a rolling body and a brush strip set in a brushroll of the floor brush in FIG. 2 ;
  • FIG. 4 is an enlarged structural schematic view of an end cover at a position A in the floor brush in FIG. 2 ;
  • FIG. 5 is an enlarged structural schematic view of a scraping strip at a position B in the floor brush in FIG. 2 ;
  • FIG. 6 is a structural schematic view from another viewing angle of the scraping strip in FIG. 5 ;
  • FIG. 7 is a structural schematic view of an outer housing in the floor brush in FIG. 1 .
  • FIG. 8 is a structural schematic view of contact between the floor brush in FIG. 1 and floor.
  • 1 floor brush, 100 : outer housing, 110 : accommodating cavity, 120 : suction channel mouth, 200 : brushroll, 210 : rolling body, 220 : brush strip set, 221 : first brush strip, 222 : second brush strip, 223 : first segment, 224 : second segment, 225 : third segment, 226 : fourth segment, 230 : spiral guiding arc surface, 240 : spiral guiding groove, 250 : end cover, 251 : accommodating groove, 252 : notch, 300 : scraping strip, 310 : scraping surface, 320 : avoidance area, and 2 : floor.
  • first and second are used only for the purpose of description and should not be construed as indicating or implying a relative importance, or implicitly indicating a quantity of indicated technical features. Therefore, the features defined by “first” and “second” can explicitly or implicitly include one or more features. In the description of the present disclosure, “multiple” means two or more, unless otherwise specifically defined.
  • connection may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection or an electrical connection; may be a direct connection or an indirect connection via an intermediate medium; or may be intercommunication between two components.
  • a connection may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection or an electrical connection; may be a direct connection or an indirect connection via an intermediate medium; or may be intercommunication between two components.
  • the present disclosure provides floor brush 1 .
  • the floor brush 1 includes outer housing 100 and brushroll 200 .
  • the outer housing 100 is provided with accommodating cavity 110 and suction channel mouth 120 communicating with the accommodating cavity 110 .
  • the brushroll 200 is provided in the accommodating cavity 110 and is configured to rotate in the accommodating cavity 110 .
  • the brushroll 200 in rotation can roll up dirt (such rubbishes as dust, paper scraps and hair) on the floor.
  • the rolled dirt is intensively collected by the suction channel mouth 120 under an action of a negative pressure.
  • the floor brush 1 can be applied to a sweeper.
  • the sweeper may be a sweeping robot.
  • the sweeping robot can drive the brushroll 200 to rotate.
  • the rotating brushroll 200 cleans the dirt on the floor.
  • the floor brush 1 can also be applied to a floor cleaning device such as a dust collector and a mopping machine.
  • the floor cleaning device includes a body and the floor brush 1 .
  • the outer housing 100 of the floor brush 1 is connected to the body.
  • the brushroll 200 includes rolling body 210 and a plurality of brush strip sets 220 .
  • the rolling body 210 is provided in the accommodating cavity 110 .
  • the rolling body 210 can rotate in the accommodating cavity 110 relative to the outer housing 100 , which can drive the plurality of brush strip sets 220 on the rolling body 210 to synchronously rotate along a circumferential direction of the rolling body 210 , and allow the brush strip sets 220 to clean the dirt on the floor.
  • An end portion of the rolling body 210 can be connected to a driving source.
  • An output end of the driving source may be directly or indirectly connected to the end portion of the rolling body 210 , thereby driving the rolling body 210 to rotate along the circumferential direction.
  • the driving source may be an external motor or an internal motor. It is to be noted than when the output end of the driving source is indirectly connected to the rolling body 210 , a change gear set may be provided between the driving source and the rolling body 210 .
  • the plurality of brush strip sets 220 there are a plurality of brush strip sets 220 .
  • the term “a plurality of” means at least two.
  • the plurality of brush strip sets 220 extend along an axial direction of the rolling body 210 and are arranged at intervals along a circumferential direction of the rolling body 210 .
  • the brush strip set 220 includes first brush strip 221 and second brush strip 222 . Both the first brush strip 221 and the second brush strip 222 are protruded from an outer surface of the rolling body 210 , so as to ensure that the first brush strip 221 and the second brush strip 222 can come in contact and capture the dirt.
  • Both the first brush strip 221 and the second brush strip 222 are continuous along the axial direction of the rolling body 210 , namely the first brush strip 221 and the second brush strip 222 in the extension direction can be taken as a whole continuous strip, and there is no gap for the first brush strip 221 and the second brush strip 222 that makes the hair embedded into roots easily. It is to be understood that the first brush strip 221 and the second brush strip 222 in the extension direction may also be discontinuous in other embodiments.
  • a circumferential spacing between the first brush strip 221 and the second brush strip 222 in a same one of the brush strip sets 220 is less than a circumferential spacing between two adjacent ones of the brush strip sets 220 .
  • the first brush strip 221 is positioned in front of the second brush strip 222 to support the hair.
  • the second brush strip 222 is more flexible or softer than the first brush strip 221 , ensuring that the first brush strip 221 with a stronger support strength can roll up the hair on the floor and the hair is captured by the softer second brush strip 222 .
  • the first brush strip 221 includes a circumferentially continuous and unspaced flexible body.
  • the second brush strip 222 may include at least one of a circumferentially continuous and unspaced flexible body, and axially compact and continuous fine soft bristles. It is to be understood that both the first brush strip 221 and the second brush strip 222 may use the flexible body, or the first brush strip 221 uses the flexible body, and the second brush strip 222 uses the fine soft bristles.
  • the flexible body may be made of rubber, cloth, polyvinyl chloride (PVC), thermoplastic polyurethane (TPU), etc.
  • the first brush strip 221 when the first brush strip 221 uses the flexible body, and the second brush strip 222 uses the fine soft bristles, the first brush strip 221 can show elastic deformation when coming in contact with the floor, so as to match with a shape of the floor by means of the deformation.
  • the first brush strip 221 can also roll up the hair easily.
  • the rolled hair can further be embedded into the second brush strip 222 made of the fine soft bristles.
  • the second brush strip 222 made of the fine soft bristles can further increase a capturing force to the hair.
  • a radial height of the second brush strip 222 made of the fine soft bristles is less than a radial height of the first brush strip 221 , so as to prevent the rolled hair from being embedded into roots of the fine soft bristles. The hair embedded into the roots may be entangled.
  • the floor brush 1 and the floor cleaning device provided by the embodiments of the present disclosure, when the rolling body 210 rotates along a direction, the first brush strip 221 rolls up hair.
  • the hair can be supported on the first brush strip 221 and captured by the adjacent second brush strip 222 . Since a circumferential spacing between the first brush strip 221 and the second brush strip 222 in a same brush strip set 220 is less than a circumferential spacing between two adjacent brush strip sets 220 , the two adjacent brush strip sets 220 are not too close to cause the large supporting area and capturing force of the hair and the entanglement of the hair.
  • an area for suspending the rolled hair can be enlarged by increasing the circumferential spacing between the two adjacent brush strip sets 220 .
  • the hair can be separated from the brush strip sets 220 effectively and more easily when sucked by a negative pressure.
  • the hair cannot be embedded into roots of the first brush strip 221 and the second brush strip 222 . This reduces a resistance when the hair is sucked by the negative pressure, and lowers a risk of entanglement of the hair. It is to be understood that there may further be only one brush strip in the brush strip set 220 in other embodiments of the present disclosure.
  • both the first brush strip 221 and the second brush strip 222 extend spirally, such that the dirt is rolled up and captured more easily.
  • the first brush strip 221 includes a first segment 223 and a second segment 224 that are connected axially.
  • the first segment 223 and the second segment 224 are of a first shape along the circumferential direction.
  • the first shape may be a “V” shape or a “U” shape.
  • the first shape is the “V” shape in the figure.
  • the second brush strip 222 includes a third segment 225 and a fourth segment 226 that are connected axially.
  • the third segment 225 extends along a track of the first segment 223 .
  • the fourth segment 226 extends along a track of the second segment 224 .
  • the third segment 225 and the fourth segment 226 are of a second shape along the circumferential direction.
  • the second shape may be a “V” shape or a “U” shape.
  • the first brush strip 221 and the second brush strip 222 can guide and push the hair or dust to a middle area, namely an area where the first segment 223 and the second segment 224 are intersected with each other, and an area where the third segment 225 and the fourth segment 226 are intersected with each other. Therefore, the hair or dust is not clamped at two ends of the rolling body 210 .
  • the first brush strip 221 and the second brush strip 222 may also not extend spirally in other embodiments.
  • the rolling body 210 is provided with spiral guiding arc surface 230 extending along the axial direction of the rolling body 210 .
  • a radial height of the spiral guiding arc surface 230 is less than radial heights of the brush strip sets 220 .
  • An axial extending track of the spiral guiding arc surface 230 corresponds to a track of the first brush strip 221 or a track of the second brush strip 222 . Based on the structural design of the spiral guiding arc surface 230 , when the rolling body 210 rotates, an airflow away from the floor is formed between the two adjacent brush strip sets 220 .
  • a circumferential width of the spiral guiding arc surface 230 may be as large as possible to capture large-particle dirt. It is to be noted that the embodiment where the brush strip set 220 includes one brush strip is also applied to the embodiment with the spiral guiding arc surface 230 . In this case, it is to be understood that the spiral guiding arc surface 230 is formed between the two adjacent brush strip sets 220 . The spiral guiding arc surface 230 can form an airflow away from the floor, thereby raising the hair, reducing the resistance when the hair is sucked by the negative pressure, and facilitating removal and collection of the hair.
  • an outer surface of the rolling body 210 between the two adjacent ones of the brush strip sets 220 is recessed radially to form a spiral guiding groove 240 .
  • a surface of the spiral guiding groove 240 serves as the spiral guiding arc surface 230 .
  • the radial depth of the spiral guiding arc surface 230 can further be increased. This can further increase the airflow, and have the larger capturing force to capture the dirt to the spiral guiding arc surface 230 .
  • the large-particle rubbishes are not blocked to reduce the resisting moment in rotation. It is to be understood that a bump with the spiral guiding arc surface 230 can further be directly provided between two adjacent brush strip sets 220 in other embodiments.
  • At least one of two axially opposite ends of the rolling body 210 is provided with end cover 250 .
  • Annular accommodating groove 251 that extends along the circumferential direction of the rolling body 210 is formed in the end cover 250 .
  • the accommodating groove 251 is exposed out of the brushroll 100 .
  • a side of the end cover 250 away from the rolling body 210 is further provided with notch 252 communicating with the accommodating groove 251 .
  • the hair entangled in the accommodating groove 251 can also be picked easily through the notch 252 and separated from the accommodating groove 251 .
  • the floor brush 1 provided by the present disclosure further includes scraping strip 300 .
  • the scraping strip 300 is fixed between the brushroll 220 and the suction channel mouth 120 .
  • At least one of the first brush strip 221 and the second brush strip 222 can be cooperated with the scraping strip 300 under rotation of the rolling body 210 to separate entangled hair through the scraping strip 300 .
  • the so-called cooperation between the brush strip and the scraping strip 300 refers to that the scraping strip 300 is tangent with or in interference fit with at least one brush strip in the brush strip set 220 in a height direction, so as to prevent entanglement of the hair near the suction channel mouth 120 in the hair scraping action of the scraping strip.
  • the scraping strip 300 has scraping surface 310 .
  • a direction in which a bottom of the scraping surface 310 is tangent with the rolling body 210 is defined as a reference direction.
  • the scraping surface 310 is inclined to the reference direction.
  • An included angle a between the scraping surface 310 and the reference direction may be controlled between 5° and 30°, such that the bottom of the scraping strip 300 can better hook hair entangled to the brush strip.
  • the plurality of scraping strips 300 extend along the axial direction of the rolling body 310 and form a scraping strip array.
  • the suction channel mouth 120 is positioned in a central area of the scraping strip array and aligns with an intersection of the first segment 223 and the second segment 224 . Further, arrangement of the scraping strip array may follow trends of the first brush strip 221 and the second brush strip 222 , namely a part of the scraping strips 300 in the central area of the scraping strip array are dense, while a part of the scraping strips 300 at two ends of the scraping strip array are sparse.
  • a part of the scraping strips 300 in the central area of the scraping strip array are deviated along a rotating direction of the rolling body 210 to provide avoidance area 320 .
  • the avoidance area 320 communicates with the suction channel mouth 120 . Based on the avoidance area 320 , there may be an enough space near the suction channel mouth 120 , such that the hair is fluffier and is not entangled easily.
  • FIG. 8 illustrates a trend that the rolling body 210 in rotation drives the hair. As shown in FIG. 8 , the first brush strip 221 comes in contact with the floor 2 , and the first brush strip 221 rolls up the dirt on the floor 2 .
  • the avoidance area 320 provides an enough space.
  • a size of a radial opening of the suction channel mouth 120 decreases gradually from a side adjacent to the rolling body 210 to a side away from the rolling body 210 , namely the suction channel mouth 120 is an externally expanded and internally contracted structure, so as to better guide the airflow and gather the hair to the middle, for ease of collection.
  • the suction channel mouth 120 is generally of a bell mouth shape, with a big opening adjacent to the brushroll 200 .
  • the scraping strips 300 in the central area are arranged along an edge of the side of the suction channel mouth 120 adjacent to the rolling body 210 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
US18/140,634 2022-05-06 2023-04-28 Brushroll, floor brush, and floor cleaning device Pending US20230354990A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202221074328.4U CN218009532U (zh) 2022-05-06 2022-05-06 吸尘器地刷
CN202221074328.4 2022-05-06
PCT/CN2022/120173 WO2023213038A1 (zh) 2022-05-06 2022-09-21 滚刷、地刷和地面清洁装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/120173 Continuation WO2023213038A1 (zh) 2022-05-06 2022-09-21 滚刷、地刷和地面清洁装置

Publications (1)

Publication Number Publication Date
US20230354990A1 true US20230354990A1 (en) 2023-11-09

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US18/140,634 Pending US20230354990A1 (en) 2022-05-06 2023-04-28 Brushroll, floor brush, and floor cleaning device

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US (1) US20230354990A1 (zh)
CN (1) CN218009532U (zh)
WO (1) WO2023213038A1 (zh)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011019819A (ja) * 2009-07-17 2011-02-03 Sanyo Electric Co Ltd 電気掃除機用吸込具
CN211559925U (zh) * 2019-09-05 2020-09-25 天佑电器（苏州）有限公司 滚刷组件及具有该滚刷组件的吸尘器
DE102020115219A1 (de) * 2020-06-09 2021-12-09 Miele & Cie. Kg Saugroboter
CN212368877U (zh) * 2020-08-24 2021-01-19 苏州荣炫电器有限公司 用于吸尘器的高效能滚刷及包含它的吸尘器
CN112617663A (zh) * 2020-12-24 2021-04-09 珠海格力电器股份有限公司 滚刷组件、滚刷机构及扫地机器人
CN216293906U (zh) * 2021-02-25 2022-04-15 格力博(江苏)股份有限公司 滚刷及地刷

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CN218009532U (zh) 2022-12-13

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Effective date: 20230420

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