CN218889602U - Bearing assembly for use in a cleaning head, cleaning head and surface cleaning apparatus - Google Patents

Abstract

The present disclosure provides a bearing assembly for use in a cleaning head, the cleaning head being a cleaning head of a surface cleaning apparatus, the bearing assembly comprising: a bearing portion having an outer race member and an inner race member; wherein the outer race member includes an abutment for abutment with an opening of a hollow stirring member of the cleaning head having a longitudinal axis; the abutting portion comprises a first abutting surface and a second abutting surface, and the normal line of the first abutting surface and the normal line of the second abutting surface face different directions. The present disclosure also provides a cleaning head and a surface cleaning apparatus.

Description

Bearing assembly for use in a cleaning head, cleaning head and surface cleaning apparatus

Technical Field

The present disclosure relates to the field of cleaning apparatus technology, and more particularly, to a bearing assembly for use in a cleaning head, and a surface cleaning apparatus.

Background

Existing surface cleaning apparatuses (wet surface cleaning apparatuses, dry surface cleaning apparatuses, etc.) generally perform a cleaning operation based on an agitating/stirring operation of a surface to be cleaned (e.g., floor surface).

Wet surface cleaning apparatus generally comprise: a supply tank containing a cleaning solution; a recovery tank for recovering contaminants recovered from the floor being cleaned; a motor-driven vacuum source to form a vacuum flow path from the floor being cleaned to the recovery tank.

Surface cleaning apparatus generally have a cleaning head device on which an agitating body/stirring body (e.g., a hollow roll brush) is provided for performing a cleaning operation on a floor or the like.

The structure of the cleaning head assembly, such as the structure of the stirring body/stirring body, the structure for cooperation with the stirring body/stirring body, etc., needs to be constantly optimized and improved.

Disclosure of Invention

The present disclosure provides a bearing assembly for use in a cleaning head, a cleaning head and a surface cleaning apparatus.

According to one aspect of the present disclosure there is provided a bearing assembly for use in a cleaning head for a surface cleaning apparatus, the bearing assembly comprising:

a bearing portion having an outer race member and an inner race member;

wherein the outer race member includes an abutment for abutment with an opening of a hollow stirring member of the cleaning head having a longitudinal axis;

the abutment portion includes a first abutment surface and a second abutment surface, a normal line of the first abutment surface and a normal line of the second abutment surface being oriented in different directions.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the abutment comprises a first surface that is at least partially frustoconical (frustoconical) and a second surface that is at least partially annular stepped, the first abutment surface being formed on the first surface and the second abutment surface being formed on the second surface.

The bearing assembly used in the cleaning head according to at least one embodiment of the present disclosure, the abutment portion is integrally formed on the outer side of the outer race member.

The bearing assembly used in the cleaning head according to at least one embodiment of the present disclosure, the abutting portion is provided in close contact on the outer side of the outer race member.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the first surface being contiguous with the second surface.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the first abutment surface being formed as part of the first surface.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the first surface having an inclination with respect to the longitudinal axis, the inclination being positive (inclined towards the longitudinal axis) in the direction of the opening to the hollow interior of the stirring member.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the inclination ranging from 2 ° to 8 °.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the opening having an abutment disposed about an inner wall of the opening for mating with the abutment of the bearing.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the abutment of the opening comprises a first surface that is at least partially frustoconical (frustoconical) and a second surface that is at least partially annular stepped, the first abutment surface being formed on the first surface and the second abutment surface being formed on the second surface.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the first surface of the abutment of the opening portion being contiguous with the second surface of the abutment of the opening portion.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the first surface of the abutment of the opening has a slope with respect to the longitudinal axis, the slope being positive (sloping towards the longitudinal axis) in the direction of the opening to the hollow interior of the stirring member.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the inclination of the first surface of the abutment portion of the opening is greater than or equal to (preferably greater than) the inclination of the first surface of the abutment portion of the bearing portion.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure has an inclination of the first surface of the abutment portion of the opening in the range of 3 ° to 10 °.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, further comprising:

and the bearing seat is used for being matched with the bearing part to realize a bearing function.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, further comprising:

and an elastic portion provided between the inner race piece of the bearing portion and the bearing housing to form an axial force between the bearing portion and the opening portion.

A bearing assembly for use in a cleaning head according to at least one embodiment of the present disclosure, the resilient portion is a spring.

According to another aspect of the present disclosure, there is provided a cleaning head for a surface cleaning apparatus, the cleaning head comprising: a hollow stirring member having an opening; the bearing assembly of any of the embodiments of the present disclosure, wherein the outer race member of the bearing portion of the bearing assembly is in abutting engagement with the opening portion of the hollow stirring member.

According to yet another aspect of the present disclosure, there is provided a surface cleaning apparatus comprising a cleaning head of any one of the embodiments of the present disclosure.

A surface cleaning apparatus according to at least one embodiment of the present disclosure further comprises:

a supply tank for supplying cleaning quality to the cleaning head so that the cleaning head can perform a cleaning operation on a surface to be cleaned based on cleaning;

and the recovery box is used for storing dirt generated after the cleaning head performs cleaning operation on the surface to be cleaned.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Figure 1 is a schematic overall structure of a cleaning head of one embodiment of the present disclosure.

Figure 2 is a partial schematic structural view of a cleaning head of one embodiment of the present disclosure, with the housing, flexible portion of the cleaning head removed in figure 2.

Fig. 3 is a schematic diagram of the overall structure of a drive motor and a drive unit according to an embodiment of the present disclosure.

Fig. 4 is a schematic overall structure of an agitating member according to an embodiment of the present disclosure.

Fig. 5 to 10 show an overall structural schematic of a driving part and structural schematic of each sub-component according to an embodiment of the present disclosure.

Fig. 11 is a schematic diagram of connection of a drive motor and a drive section according to an embodiment of the present disclosure.

Fig. 12 is a schematic structural view of a first mount and a first mount portion of a driving portion according to an embodiment of the present disclosure.

Fig. 13 is a schematic structural view of a driving motor of an embodiment of the present disclosure.

Fig. 14 is a schematic view of a structure of an agitating member according to an embodiment of the present disclosure, as seen from an opening.

Fig. 15 is a schematic view of the structure of one embodiment of the present disclosure as seen from the other end of the stirring member.

Fig. 16 is a schematic view of a structure of a first mount of an embodiment of the present disclosure when mounted to a housing.

Fig. 17 is a partial schematic configuration of a drive motor of an embodiment of the present disclosure.

Fig. 18 is a schematic structural view of a second mount of an embodiment of the present disclosure.

Description of the reference numerals

100. Stirring piece

101. An opening part

102. Second end of stirring piece

110 drive key mating portion/drive

200. Driving motor

210. Driving key

220. Motor shell

230 drive connection

300 drive/bearing assembly

310 bearing part

311 outer race member/outer race member

312 inner race member/inner race member

313. Intermediate ring

320. Elastic part

330 first mounting/bearing seat

400. Flexible part

500. Second bearing

600. First mounting piece

700. Second mounting member

710. Clamping structure

720. Circular portion

900. Shell body

901. Raised portion

1000. Cleaning head

1011. A second conical surface

1012. A second annular surface

3111. A first conical surface

3112. A first annular surface

3121. Inner ring piece skirt

3122. Motor connecting part

3123. Inner flange

A first part of the outer ring piece

And B the second part of the outer ring piece.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.

The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.

When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" higher "and" side (e.g., in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below" … … can encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.

Figure 1 illustrates an overall structural schematic of a cleaning head 1000 of one embodiment of the present disclosure. Fig. 2 is a partial schematic structural view of a cleaning head 1000 according to an embodiment of the present disclosure, with a housing 900, a flexible portion 400 of the cleaning head 1000 removed in fig. 2. Fig. 3 is a schematic diagram showing the overall structure of the drive motor 200 and the drive unit 300 according to one embodiment of the present disclosure. Fig. 4 is a schematic overall structure of the stirring member 100 according to one embodiment of the present disclosure.

The cleaning head 1000 of the present disclosure may be used in a surface cleaning apparatus, such as a floor scrubber, for cleaning a floor waiting cleaning surface.

Referring first to fig. 1-4, a cleaning head 1000 for a surface cleaning apparatus of the present disclosure includes:

a hollow stirring element 100, the stirring element 100 having a longitudinal axis, the stirring element 100 being mounted so as to be rotatable about the longitudinal axis;

a drive motor 200 disposed at a first end (front end in fig. 1) of the cleaning head 1000, the drive motor 200 being mounted to be located inside the stirring member 100 to drive rotation of the stirring member 100 about a longitudinal axis;

wherein the stirring member 100 has an opening 101, and the stirring member 100 can be mounted to the cleaning head 1000 through the opening 101 along a first axial direction of the driving motor 200 and can be removed from the cleaning head 1000 through the opening 101 along a second axial direction of the driving motor 200; the first axial direction is opposite to the second axial direction;

the driving part 300, the driving part 300 includes a bearing part 310 and an elastic part 320, the bearing part 310 is connected with the opening part 101 in an axial abutting manner, and when the stirring bar 100 is mounted on the cleaning head 1000, an axial force generated by the elastic part 320 is formed between the bearing part 310 and the opening part 101.

The stirring member 100 of the cleaning head 1000 of the present disclosure is provided in a hollow structure such that the stirring member 100 has a hollow cavity to be able to accommodate the driving motor 200, thereby utilizing the spatial configuration of the cleaning head 1000.

The stirring member 100 of the present disclosure preferably has a cylindrical outer surface so that it can rotate about its own longitudinal axis when driven by the drive motor 200 (refer to fig. 4) to thereby perform a cleaning operation on a floor waiting cleaning surface.

In some embodiments of the present disclosure, the outer surface of the stirring member 100 is sleeved with the flexible portion 400, and the flexible portion 400 may be formed of a sponge or a fluff, which is not particularly limited in the present disclosure.

In order to make the cleaning head 1000 of the present disclosure easier to assemble and disassemble, the driving motor 200 of the present disclosure can be fixedly mounted to the cleaning head 1000, for example, based on the first mounting portion 330 (to be described in detail later) being fixedly mounted to the cleaning head 1000, and a person skilled in the art, in light of the technical solution of the present disclosure, adjusts the manner in which the driving motor 200 is fixedly mounted to the cleaning head 1000, which falls within the scope of the present disclosure.

In some embodiments of the present disclosure, both the drive motor 200 and the stirring member 100 are mounted at a first end of the cleaning head 1000, such as the front end of the cleaning head 1000 shown in fig. 1.

Referring to fig. 2 to 4, the stirring member 100 of the present disclosure enables the stirring member 100 to be mounted to the cleaning head 1000 along a first axial direction (refer to fig. 3) of the driving motor 200 by providing the opening portion 101, and to be removed from the cleaning head 1000 along a second axial direction (refer to fig. 3) of the driving motor 200 through the opening portion 101.

Fig. 5 to 10 show an overall structural schematic of the driving part 300 and a structural schematic of each sub-component according to an embodiment of the present disclosure.

Referring to fig. 5 to 10, the present disclosure is provided by providing a driving part 300 including a bearing part 310 and an elastic part 320, and making the bearing part 310 axially contact-grounded with the opening part 101, when the stirring member 100 is mounted to the cleaning head 1000, an axial force generated by the elastic part 320 is formed between the bearing part 310 and the opening part 101, thereby enabling a portion of the bearing part 310 (the outer ring member 311) to rotate following the rotation of the stirring member 100.

In some embodiments of the present disclosure, the elastic portion 320 of the driving portion 300 of the cleaning head 1000 for a surface cleaning apparatus of the present disclosure includes a spring, one end of which abuts against the first end of the cleaning head 1000, and the other end of which abuts against the bearing portion 310, so that a portion of the bearing portion 310 (the portion that is abutted by the spring, i.e., the inner ring member 312) can reciprocate along the longitudinal axis, providing an axial installation preload to the bearing portion 310.

Fig. 5 illustrates a resilient portion 320 of the present disclosure, the resilient portion 320 of the present disclosure comprising a spring, preferably a coil spring, having one end (first end) abutting a first end of the cleaning head 1000.

The other end (second end) of the spring abuts against a portion of the bearing portion 310, and in some embodiments of the present disclosure, referring to fig. 5, the other end (second end) of the spring abuts against an end surface of a portion of the bearing portion 310, and in other embodiments of the present disclosure, the other end (second end) of the spring is embedded in a groove of the portion of the bearing portion 310 to abut against the portion of the bearing portion 310.

Those skilled in the art, with the benefit of this disclosure, may use, for example, a flexible cartridge or the like as the flexible portion 320 of the present disclosure, all falling within the scope of the present disclosure.

The present disclosure provides an axial installation pre-tightening force to the bearing portion 310 through the provision of the elastic portion 320, and thus forms an axial force generated by the elastic portion 320 between the bearing portion 310 and the opening portion 101 when the stirring member 100 is installed to the cleaning head 1000.

For the cleaning head 1000 for a surface cleaning apparatus of the above-described respective embodiments, preferably, the bearing portion 310 includes a first abutment portion, and the opening portion 101 includes a second abutment portion, the axial abutment described above being generated when the first abutment portion is in contact with the second abutment portion.

In the cleaning head 1000 for a surface cleaning apparatus of some embodiments of the present disclosure, the axial abutment described above includes the first abutment position and the second abutment position, and no axial sliding occurs between the bearing portion 310 and the stirring member 100 during axial movement from the first abutment position to the second abutment position or during axial movement from the second abutment position to the first abutment position of the stirring member 100.

In some embodiments of the present disclosure, during the process of mounting the stirring element 100 to the cleaning head 1000, the stirring element 100 is sleeved with the driving motor 200 and then axially abuts against the bearing portion 310 at the first abutting position, the stirring element 100 is continuously operated, so that the stirring element 100 and the bearing portion 310 jointly move axially towards the second abutting position, during the process, no axial sliding occurs between the bearing portion 310 and the stirring element 100, and during the process, the axial mounting pre-tightening force provided by the elastic portion 320 is gradually increased, so that after the stirring element 100 is mounted, a required axial force is formed between the bearing portion 310 and the opening portion 101 of the stirring element 100.

In some embodiments of the present disclosure, the axial abutment described above includes a first abutment position and a second abutment position, and the stirring member 100 and the bearing portion 310 are relatively stationary between the bearing portion 310 and the stirring member 100 during axial movement from the first abutment position to the second abutment position or during axial movement from the second abutment position to the first abutment position.

In some embodiments of the present disclosure, the stirring member 100 and the bearing portion 310 of the cleaning head 1000 for a surface cleaning apparatus of the present disclosure gradually increase in axial force generated by the elastic portion 320 during axial movement from the first abutment position to the second abutment position, and the stirring member 100 and the bearing portion 310 gradually decrease in axial force during axial movement from the second abutment position to the first abutment position.

According to a preferred embodiment of the present disclosure, the cleaning head 1000 for a surface cleaning apparatus of the present disclosure has zero axial force in the first abutment position described above.

For the cleaning head 1000 for a surface cleaning apparatus of the above-described respective embodiments, the bearing portion 310 includes the outer ring member 311, and the first abutment portion described above is located on the outer ring member 311.

Fig. 5-7 each illustrate an outer race member 311 of the present disclosure, the outer race member 311 of the present disclosure being in the form of a race member.

Referring to fig. 6, preferably, an outer ring member 311 of a bearing part 310 of a cleaning head 1000 for a surface cleaning apparatus of the present disclosure includes an outer ring member first portion a and an outer ring member second portion B, the outer ring member first portion a being located outside the outer ring member second portion B in a radial direction of the outer ring member 311, at least a portion of the outer ring member first portion a forming the first abutment described above.

In some embodiments of the present disclosure, the outer diameter of the outer ring member second portion B is less than the inner diameter of the stirring member 100.

In some embodiments of the present disclosure, the outer diameter of the outer ring member second portion B is greater than or equal to the outer diameter of the drive motor 200.

For the cleaning head 1000 for a surface cleaning apparatus of the present disclosure, the outer ring member second portion B serves as an outer ring of the bearing portion 310.

With continued reference to fig. 6, in some embodiments of the present disclosure, the first abutment of the outer race member 311 of the bearing portion 310 of the present disclosure includes a first tapered surface 3111 and a first annular surface 3112, the first tapered surface 3111 being located at an outer end of the first annular surface 3112.

Referring to fig. 5-9, an inner race member 312 of a bearing portion 310 of one embodiment of the present disclosure is shown, in some embodiments of the present disclosure, the inner race member 312 receives the axial force generated by the resilient portion 320 described above and transmits to the outer race member 311.

Referring to fig. 8 and 9, inner ring member 312 may have an inner ring member skirt 3121 and an inner flange 3123 and motor connection 3122 fixedly connected or integrally formed with inner ring member skirt 3121. The radial dimension of the inner flange 3123 is greater than the radial maximum dimension of the motor connection 3122.

The motor connection portion 3122 preferably has a concave-convex staggered structure, based on which the drive connection portion 230 of the drive motor 200 can axially cooperate with the motor connection portion 3122 such that the inner race member 312 cannot rotate relative to the drive connection portion 230.

Wherein the driving connection part 230 is also preferably provided in a concavo-convex staggered structure to be engaged with the motor connection part 3122 (refer to fig. 17).

Fig. 10 shows an intermediate ring member 313 provided between the inner ring member 312 and the outer ring member 311, the inner ring of the intermediate ring member 313 being in abutment with the inner flange 3123 described above but not in contact with the motor connection portion 3122, and the intermediate ring member 313 being rotatable relative to the inner ring member 312, the outer ring member 311 being rotatable relative to the intermediate ring member 313 and the inner ring member 312 such that the outer ring member 311 is rotatable following the stirring member 100.

In some embodiments of the present disclosure, referring to fig. 4, preferably, the opening 101 of the stirring member 100 of the cleaning head 1000 for a surface cleaning apparatus of the present disclosure includes a second tapered surface 1011 and a second annular surface 1012, the second annular surface 1012 being located at an inner end of the second tapered surface 1011.

Referring to fig. 4, preferably, the longitudinal axis of the stirring member 100 is perpendicular to the second annular surface 1012.

In some embodiments of the present disclosure, when the stirring member 100 of the cleaning head 1000 for a surface cleaning apparatus of the present disclosure is mounted to the cleaning head 1000, the above-described first annular surface 3112 collides with the above-described second annular surface 1012, and the above-described first tapered surface 3111 collides with the above-described second tapered surface 1011.

In some embodiments of the present disclosure, it is preferable that in the cleaning head 1000 for a surface cleaning apparatus of the present disclosure, the slope of the first tapered surface 3111 described above is greater than the slope of the second tapered surface 1011, such that the first tapered surface 3111 forms a gap partially between the second tapered surface 1011 when it collides with the two.

Fig. 11 is a schematic diagram illustrating connection between the driving motor 200 and the driving unit 300 according to an embodiment of the present disclosure.

Fig. 12 is a schematic structural view of the first mount 600 and the first mount 330 of the driving part 300 according to one embodiment of the present disclosure.

Referring to fig. 12, in some embodiments of the present disclosure, the driving part 300 includes a first mounting part 330 fixed at a first end of the cleaning head 1000, and the elastic part 320 is disposed between the first mounting part 330 and the bearing part 310.

The first mounting portion 330 may be fixedly disposed on the first mounting member 600, and the first mounting member 600 is fixed on the housing 900.

Referring to fig. 12, the first mounting portion 330 may preferably include a plurality of mounting holes and a concave-convex staggered structure for fixedly coupling with the motor coupling portion 3122.

Fig. 13 shows a schematic structural view of a drive motor 200 of one embodiment of the present disclosure. Fig. 14 is a schematic structural view of the stirring member 100 according to one embodiment of the present disclosure as seen from the opening 101. Fig. 15 is a schematic view of the structure of one embodiment of the present disclosure as seen from the other end of the stirring member 100. Fig. 16 illustrates a schematic structural view of the first mount 600 according to an embodiment of the present disclosure when mounted to the housing 900, and fig. 16 illustrates a partial structure of the housing 900. Fig. 17 is a partial schematic configuration of a drive motor of an embodiment of the present disclosure.

Referring to fig. 13-15, in some embodiments of the present disclosure, preferably, the drive motor 200 of the cleaning head 1000 for a surface cleaning apparatus of the present disclosure drives the stirring member 100 via the drive key 210, the drive key 210 engaging the stirring member 100 in an axial sliding fit so as not to impede sliding removal of the stirring member 100.

The stirring member 100 will rotate following the driving key 210.

Referring to fig. 13, in some embodiments of the present disclosure, the driving key 210 engages the stirring member 100 at an end opposite to the driving part 300.

Referring to fig. 13 and 17, the driving motor 200 may include a motor housing 220 and a driving connection part 230 integrally formed with or fixedly connected to the motor housing 220, the output shaft of the driving motor 200 and the driving connection part 230 are respectively disposed at both ends of the motor housing 220, the output shaft of the driving motor 200 outputs a rotation motion via a driving key 210, the driving key 210 is fixedly disposed on the output shaft of the driving motor 200, and the driving key 210 may include a plurality of columns uniformly distributed in a circumferential direction to transmit a driving force to the stirring member 100.

In some embodiments of the present disclosure, a driving key fitting portion 110 is provided in a cavity of the stirring member 100 of the cleaning head 1000 of the present disclosure, and the stirring member 100 receives a driving force of the driving key 210 based on the driving key fitting portion 110.

In some embodiments of the present disclosure, the driving key fitting portion 110 includes a plurality of concave portions uniformly distributed in the circumferential direction to fit with the cylinder of the driving key 210.

Those skilled in the art may adjust the structures of the driving key 210 and the driving key matching portion 110 in light of the disclosure, which falls within the scope of the disclosure.

Fig. 13 also shows a second bearing 500, based on which second bearing 500 the second end 102 of the stirring member 100 can be rotatably connected with a second mount 700 of the cleaning head 1000, the second mount 700 being fixed to the housing 900.

Fig. 18 is a schematic structural view of a second mount 700 of an embodiment of the present disclosure.

Referring to fig. 18, the second mount 700 is provided with a rounded portion 720 at one end and a snap structure 710 at the other end, preferably, in some embodiments of the present disclosure, the snap structure 710 includes a recess for mating with a protrusion 901 on the housing 900 of the cleaning head 1000.

The second end 102 of the stirring member 100 is rotatably coupled with the circular portion 720 of the second mount 700 based on the circular portion 720 of the second mount 700 and the second bearing 500.

Some embodiments of the present disclosure include a cleaning head 1000 of any of the embodiments described above.

In some embodiments of the present disclosure, the surface cleaning apparatus further comprises:

a supply tank for supplying cleaning quality to the cleaning head 1000 so that the cleaning head 1000 can perform a cleaning operation on a surface to be cleaned based on the cleaning quality;

and a recovery tank for storing dirt generated after the cleaning head 1000 performs a cleaning operation on the surface to be cleaned.

Referring to fig. 1-18, the present disclosure also provides a rotatable agitator for a cleaning head 1000 of a surface cleaning apparatus, comprising:

a hollow mixer body 100 having a longitudinal axis, the mixer body 100 having an opening portion 101, the opening portion 101 enabling communication between the hollow interior of the mixer body 100 and the outside;

wherein the opening 101 has an abutment arranged around an inner wall of the opening 101 for cooperation with the drive part 300 of the cleaning head 1000, the cooperation enabling rotation of the agitator body 100 on the cleaning head 1000 about a longitudinal axis;

the abutting part comprises a first abutting surface and a second abutting surface, and the normal line of the first abutting surface and the normal line of the second abutting surface face different directions.

In some embodiments of the present disclosure, the abutment includes a first surface 1011 that is at least partially frustoconical (frustoconical) and a second surface 1012 that is at least partially annular stepped, the first abutment surface being formed on the first surface 1011 and the second abutment surface being formed on the second surface 1012.

Preferably, the first surface 1011 is not perpendicular to the longitudinal axis and the second surface 1012 is perpendicular to the longitudinal axis.

In a rotatable mixer of some embodiments of the present disclosure, a first surface 1011 abuts a second surface 1012.

In some embodiments of the disclosure, the first abutment surface is formed as part of the first surface 1011.

Preferably, the second abutment surface is formed as a second surface 1012.

In the rotatable mixer of some embodiments of the present disclosure, the first surface 1011 has an inclination with respect to the longitudinal axis, the inclination being a positive inclination (inclination toward the longitudinal axis) in the direction of the opening 101 to the hollow interior of the mixer body 100.

In some embodiments of the disclosure, the rotatable stirrer has an inclination in the range of 3 ° to 10 °.

In the rotatable agitator of some embodiments of the present disclosure, the hollow interior of the agitator body 100 is provided with a drive member 110, the drive member 110 cooperating with the rotational output 210 of the drive motor 200 of the cleaning head 1000 to receive the driving force of the drive motor 200 (thereby causing the agitator body 100 to rotate about the longitudinal axis).

In the rotatable whisk of some embodiments of the present disclosure, the drive motor 200 is located within the hollow interior of the whisk body 100.

In the rotatable mixer of some embodiments of the present disclosure, a flexible portion 400 is further included, the flexible portion 400 being carried on the mixer body 100 and the flexible portion 400 extending along the central and end regions (both end regions) of the mixer body 100.

In some embodiments of the present disclosure, the flexible portion 400 is a nap band.

In the rotatable agitator of some embodiments of the present disclosure, the agitator body 100 includes a second end 102 opposite the opening 101, based on which second end 102 the agitator body 100 can be mounted to the second mount 700 of the cleaning head 1000.

In the rotatable mixer of some embodiments of the present disclosure, the portion of the second mount 700 that is located within the end projection of the second end 102 of the mixer body 100 includes a rounded portion 720.

In the rotatable agitator of some embodiments of the present disclosure, the second mount 700 includes a snap structure 710, based on which the second mount 700 is fixed to the cleaning head 1000.

In rotatable agitators of some embodiments of the present disclosure, the snap-fit structure 710 includes a groove for mating with the protrusion 901 of the cleaning head 1000.

In the rotatable mixer of some embodiments of the present disclosure, the second end 102 of the mixer body 100 and the second mount 700 are capable of relative rotation based on the circular portion 720 of the second mount 700.

The cleaning head 1000 for a surface cleaning apparatus of the present disclosure includes the rotatable agitator of any one of the embodiments described above, and the cleaning head 1000 performs a cleaning operation on a surface to be cleaned based on the rotatable agitator.

Referring to fig. 1-18, the present disclosure also provides a bearing assembly 300 for use in a cleaning head 1000 of a surface cleaning apparatus, comprising:

a bearing portion 310 having an outer race member 311 and an inner race member 312;

wherein the outer race member 311 includes an abutment portion for abutting with the opening portion 101 of the hollow stirring member 100 having a longitudinal axis of the cleaning head 1000;

the abutting portion comprises a first abutting surface and a second abutting surface, and the normal line of the first abutting surface and the normal line of the second abutting surface face different directions.

In the bearing assembly 300 of some embodiments of the present disclosure, the abutment includes a first surface 3111 that is at least partially frustoconical (frustoconical) and a second surface 3112 that is at least partially annular stepped, the first abutment surface being formed on the first surface 3111 and the second abutment surface being formed on the second surface 3112.

In the bearing assembly 300 of some embodiments of the present disclosure, the abutment is integrally formed on the outer side of the outer race member 311.

In the bearing assembly 300 of some embodiments of the present disclosure, the abutting portion is provided in close contact on the outer side of the outer race member 311.

In bearing assembly 300 of some embodiments of the present disclosure, first surface 3111 is contiguous with second surface 3112.

In the bearing assembly 300 of some embodiments of the present disclosure, the first abutment surface is formed as part of the first surface 3111.

In the bearing assembly 300 of some embodiments of the present disclosure, the first surface 3111 has an inclination with respect to the longitudinal axis, the inclination being a positive inclination (inclination toward the longitudinal axis) in the direction of the opening 101 to the hollow interior of the stirring member 100.

In bearing assemblies 300 of some embodiments of the present disclosure, the inclination ranges from 2 ° to 8 °.

In the bearing assembly 300 of some embodiments of the present disclosure, the opening portion 101 has an abutment portion disposed around an inner wall of the opening portion 101 for engagement with an abutment portion of the bearing portion 310.

In the bearing assembly 300 of some embodiments of the present disclosure, the abutment portion of the opening portion 101 includes a first surface 1011 that is at least partially frustoconical (frustoconical) and a second surface 1012 that is at least partially annular stepped, the first abutment surface being formed on the first surface 1011 and the second abutment surface being formed on the second surface 1012.

In the bearing assembly 300 of some embodiments of the present disclosure, the first surface 1011 of the abutment portion of the opening portion 101 abuts the second surface 1012 of the abutment portion of the opening portion 101.

In the bearing assembly 300 of some embodiments of the present disclosure, the first surface 1011 of the abutment portion of the opening 101 has an inclination with respect to the longitudinal axis, the inclination being a positive inclination (inclination toward the longitudinal axis) in the direction of the opening 101 to the hollow interior of the stirring member 100.

In the bearing assembly 300 of some embodiments of the present disclosure, the inclination of the first surface 1011 of the abutting portion of the opening portion 101 is greater than or equal to the inclination of the first surface 3111 of the abutting portion of the bearing portion 310.

In the bearing assembly 300 of some embodiments of the present disclosure, the inclination of the first surface 1011 of the abutment portion of the opening portion 101 ranges from 3 ° to 10 °.

In the bearing assembly 300 of some embodiments of the present disclosure, further comprising: bearing housing 330, bearing housing 330 is configured to cooperate with bearing portion 310 to perform a bearing function.

In the bearing assembly 300 of some embodiments of the present disclosure, further comprising: the elastic portion 320, the elastic portion 320 is disposed between the inner race piece 312 of the bearing portion 310 and the bearing housing 330 to form an axial force between the bearing portion 310 and the opening 101.

In the bearing assembly 300 of some embodiments of the present disclosure, the elastic portion 320 is a spring.

The present disclosure also provides a cleaning head 1000 comprising: a hollow stirring member 100, the hollow stirring member 100 having an opening 101; the bearing assembly 300 of any of the embodiments of the present disclosure, the outer race member 311 of the bearing portion 310 of the bearing assembly 300 is in abutting engagement with the opening 101 of the hollow stirring member 100.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present disclosure. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (20)

1. A bearing assembly for use in a cleaning head for a surface cleaning apparatus, the bearing assembly comprising:

a bearing portion having an outer race member and an inner race member;

wherein the outer race member includes an abutment for abutment with an opening of a hollow stirring member of the cleaning head having a longitudinal axis;

the abutment portion includes a first abutment surface and a second abutment surface, a normal line of the first abutment surface and a normal line of the second abutment surface being oriented in different directions.

2. A bearing assembly for use in a cleaning head according to claim 1, wherein the abutment comprises a first surface which is at least partially frusto-conical and a second surface which is at least partially annular stepped, the first abutment surface being formed on the first surface and the second abutment surface being formed on the second surface.

3. A bearing assembly for use in a cleaning head according to claim 1, wherein the abutment is integrally formed on the outside of the outer race member.

4. A bearing assembly for use in a cleaning head according to claim 1, wherein the abutment is provided in close contact on the outside of the outer race member.

5. A bearing assembly for use in a cleaning head according to claim 2, wherein the first surface is contiguous with the second surface.

6. A bearing assembly for use in a cleaning head according to claim 2 or claim 5, wherein the first abutment surface is formed as part of the first surface.

7. A bearing assembly for use in a cleaning head according to claim 2, wherein the first surface has a slope with respect to the longitudinal axis, the slope being positive in the direction of the opening to the hollow interior of the stirring member.

8. A bearing assembly for use in a cleaning head according to claim 7, wherein the inclination is in the range 2 ° to 8 °.

9. A bearing assembly for use in a cleaning head as claimed in claim 7, wherein the opening has an abutment disposed about an inner wall of the opening for engagement with the abutment of the bearing.

10. A bearing assembly for use in a cleaning head according to claim 9, wherein the abutment of the opening comprises a first surface which is at least partially frusto-conical and a second surface which is at least partially annular stepped, the first abutment being formed on the first surface and the second abutment being formed on the second surface.

11. A bearing assembly for use in a cleaning head according to claim 10, wherein the first surface of the abutment of the opening is contiguous with the second surface of the abutment of the opening.

12. A bearing assembly for use in a cleaning head according to claim 11, wherein the first surface of the abutment of the opening has a slope with respect to the longitudinal axis, the slope being positive in the direction of the opening to the hollow interior of the stirring member.

13. A bearing assembly for use in a cleaning head according to claim 12, wherein the inclination of the first surface of the abutment of the opening is greater than or equal to the inclination of the first surface of the abutment of the bearing.

14. A bearing assembly for use in a cleaning head according to claim 12, wherein the inclination of the first surface of the abutment of the opening is in the range 3 ° to 10 °.

15. A bearing assembly for use in a cleaning head as claimed in claim 1, further comprising:

and the bearing seat is used for being matched with the bearing part to realize a bearing function.

16. A bearing assembly for use in a cleaning head as claimed in claim 15, further comprising:

and an elastic portion provided between the inner race piece of the bearing portion and the bearing housing to form an axial force between the bearing portion and the opening portion.

17. A bearing assembly for use in a cleaning head according to claim 16, wherein the resilient portion is a spring.

18. A cleaning head for a surface cleaning apparatus, the cleaning head comprising:

a hollow stirring member having an opening; and

the bearing assembly of any one of claims 1 to 17, the outer race member of the bearing portion of the bearing assembly being in abutting engagement with the opening of the hollow stirring member.

19. A surface cleaning apparatus comprising the cleaning head of claim 18.

20. The surface cleaning apparatus of claim 19, further comprising:

a supply tank for supplying cleaning quality to the cleaning head so that the cleaning head can perform a cleaning operation on a surface to be cleaned based on cleaning; and

and the recovery box is used for storing dirt generated after the cleaning head performs cleaning operation on the surface to be cleaned.

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