CN116236124A - Cleaning head for a surface cleaning device and surface cleaning device - Google Patents

Abstract

The present disclosure provides a cleaning head for a surface cleaning apparatus, comprising: a hollow stirring element having a longitudinal axis, the stirring element being mounted so as to be rotatable about the longitudinal axis; a drive motor disposed at the first end of the cleaning head, the drive motor being mounted to be located inside the agitating member to drive rotation of the agitating member about the longitudinal axis; the stirring member has an opening portion through which the stirring member can be mounted to the cleaning head in a first axial direction of the drive motor and removed from the cleaning head in a second axial direction of the drive motor; the drive part comprises a bearing part which is axially abutted and connected with the opening part, and axial force generated from at least part of the bearing part to the opening part along the longitudinal axis direction in the axial abutting process is used for enabling the bearing part to displace along the longitudinal axis under the action of the axial force after the stirring piece is detached from the cleaning head so as to form a release area between the cleaning head and the bearing part. The present disclosure also provides a surface cleaning apparatus.

Description

Cleaning head for a surface cleaning device and surface cleaning device

Technical Field

The present disclosure relates to the field of cleaning apparatus, and more particularly, to a cleaning head for a surface cleaning apparatus 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 cleaning head for a surface cleaning apparatus and a surface cleaning apparatus.

According to one aspect of the present disclosure there is provided a cleaning head for a surface cleaning apparatus comprising:

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

a drive motor disposed at a first end of the cleaning head, the drive motor being mounted to be located inside the agitating member to drive rotation of the agitating member about the longitudinal axis;

Wherein the stirring member has an opening portion through which the stirring member can be mounted to the cleaning head along a first axial direction of the drive motor and removed from the cleaning head along a second axial direction of the drive motor; the first axial direction is opposite to the second axial direction;

a drive portion disposed at a first end of the cleaning head, the drive portion including a bearing portion axially abutting engagement with the opening portion, an axial force being generated in the axial abutment from at least a portion of the bearing portion in the direction of the longitudinal axis to the opening portion such that upon removal of the agitation member from the cleaning head, the bearing portion is displaced along the longitudinal axis under the action of the axial force to form a relief region between the cleaning head and the bearing portion.

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

the first mounting piece is used for enabling the driving motor to be arranged at the first end of the cleaning head.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the relief area being formed between the first mount and the bearing portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the bearing portion being moved away from the first mount along the longitudinal axis under the axial force to effect the displacement.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the first mount being configured to form a portion of a sidewall surface of the cleaning head.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the drive portion further comprising a resilient portion, the axial force generated in the axial abutment being generated based on the resilient portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the resilient portion is located at least partially between the first mount and the bearing portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the first mount includes a support head from which the drive motor extends on the longitudinal axis and is supported by the support head.

A cleaning head for a surface cleaning apparatus according to at least one embodiment of the present disclosure, the bearing portion being axially movably disposed on the support head.

According to a cleaning head for a surface cleaning apparatus of at least one embodiment of the present disclosure, the elastic portion includes a spring, the spring is sleeved on the supporting head, one end of the spring abuts against the first mounting member, and the other end of the spring abuts against the bearing portion to provide an axial force.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the bearing portion being located within the opening portion when the agitation member is mounted on the cleaning head.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the axial dimension of the opening portion is greater than the axial dimension of the bearing portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the bearing portion comprising a first abutment portion, the opening portion comprising a second abutment portion, the axial abutment occurring when the first abutment portion is in contact with the second abutment portion.

According to the cleaning head for the surface cleaning apparatus of at least one embodiment of the present disclosure, the axial abutment includes a first abutment position and a second abutment position, and the stirring member and the bearing portion do not slide axially with respect to each other 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.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the axial abutment includes a first abutment position and a second abutment position, the agitation member and the bearing portion being relatively stationary between the bearing portion and the agitation member 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.

According to the cleaning head for the surface cleaning apparatus of at least one embodiment of the present disclosure, the stirring member and the bearing portion gradually increase in axial force generated by the elastic portion during axial movement from the first abutment position to the second abutment position, and gradually decrease in axial force during axial movement from the second abutment position to the first abutment position.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, in the first abutment position, the axial force is zero.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the bearing portion includes an outer race member on which the first abutment is located.

A cleaning head for a surface cleaning apparatus according to at least one embodiment of the present disclosure, the outer ring member includes an outer ring member first portion and an outer ring member second portion, the outer ring member first portion being located outside the outer ring member second portion in a radial direction of the outer ring member, the first abutting portion being formed on at least a part of the outer ring member first portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the first abutment includes a first tapered surface and a first annular surface, the first tapered surface being located at an outer end of the first annular surface.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the opening of the agitating member includes a second tapered surface and a second annular surface at an inner end of the second tapered surface.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the first annular surface abutting the second annular surface and the first tapered surface abutting the second tapered surface when the agitating member is mounted to the cleaning head.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the slope of the first tapered surface being greater than the slope of the second tapered surface.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the drive motor drives the agitating members by a drive key that engages the agitating members in an axially sliding fit so as not to impede sliding removal of the agitating members.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the drive key engaging the agitation member at an end opposite the drive portion.

A cleaning head for a surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the agitation member is provided with a driving key engagement portion in a cavity thereof, and the agitation member receives a driving force of the driving key based on the driving key engagement portion.

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

Fig. 3 is a partial schematic structural view of a cleaning head of one embodiment of the present disclosure.

Fig. 4 is a partial schematic structural view of a cleaning head of one embodiment of the present disclosure.

Fig. 5 is a partial schematic view of a cleaning head according to one embodiment of the present disclosure.

Figure 6 is a partial schematic view of a cleaning head of one embodiment of the present disclosure.

Fig. 7 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. 8 is a schematic overall structure of an agitating member according to an embodiment of the present disclosure.

Fig. 9 to 14 show an overall structural schematic of a driving part and structural schematic of each sub-component of an embodiment of the present disclosure.

Fig. 15 is a schematic diagram of connection of a drive motor and a drive section according to an embodiment of the present disclosure.

Fig. 16 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. 17 is a schematic diagram of a driving motor of an embodiment of the present disclosure.

Fig. 18 is a schematic structural view of an agitating member according to an embodiment of the present disclosure, as seen from an opening.

Fig. 19 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. 20 is a schematic view of a structure of a first mount of an embodiment of the present disclosure when mounted to a housing.

Fig. 21 is a partial schematic configuration of a drive motor of an embodiment of the present disclosure.

Fig. 22 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 portion

110. Drive key fitting part

200. Driving motor

210. Driving key

220. Motor shell

230. Drive connection

300. Drive unit

310. Bearing part

311. Outer ring piece

312. Inner ring piece

313. Intermediate ring

320. Elastic part

330. A first mounting part

400. Flexible part

500. Second bearing

600. First mounting piece

610. Supporting head

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 view of a cleaning head 1000 of one embodiment of the present disclosure, showing agitation members, bearing portions, and the like. Fig. 3 is a partial schematic view of a cleaning head 1000 of one embodiment of the present disclosure, showing an agitating member, a first mounting member, and a second mounting member. Fig. 4 is a partial schematic structural view of a cleaning head 1000 of one embodiment of the present disclosure, with the stirring member removed on the basis of fig. 3, showing a bearing portion, a drive motor, and the like. Fig. 5 is a partial schematic view of a cleaning head 1000 of an embodiment of the present disclosure, with bearing portions removed on the basis of fig. 4, showing an elastic portion, a drive motor, etc.

A cleaning head 1000 for a surface cleaning apparatus of the present disclosure will first be described with reference to fig. 1 to 5. Referring to fig. 1-5, in some embodiments of the present disclosure, 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 driving motor 200 provided at a first end (front end) of the cleaning head 1000, the driving motor 200 being installed to be located inside the stirring member 100 to drive the stirring member 100 to rotate 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;

a driving part 300 provided at a first end (front end) of the cleaning head 1000, the driving part 300 including a bearing part 310, the bearing part 310 being engaged with the opening part 101 in axial abutment, an axial force being generated in the axial abutment from at least a portion of the bearing part 310 to the opening part 101 in the longitudinal axis direction, such that, when the stirring member 100 is detached from the cleaning head 1000, the bearing part 310 is displaced along the longitudinal axis by the axial force to form a release area (via which entangled type dirt (hair, etc.) can be taken out) between the cleaning head and the bearing part 310.

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.

The present disclosure is achieved by arranging the bearing portion 310 to be engaged with the opening portion 101 in axial abutment such that an axial force in the axial abutment generated from the bearing portion 310 in the longitudinal axis direction to the opening portion 101 causes the bearing portion 310 to displace along the longitudinal axis by axial force to form a release region between the cleaning head and the bearing portion 310, via which entangled type dirt (hair, etc.) can be taken out, after the stirring member 100 is detached from the cleaning head 1000.

Fig. 2 illustrates a schematic installation of the stirring member 100 and the bearing portion 310 in some embodiments of the present disclosure, the bearing portion 310 being held within the opening portion 101 when the stirring member 100 is installed on the cleaning head 1000.

Referring to fig. 3 and 4, after the stirring member 100 is detached from the cleaning head 1000, the bearing portion is displaced by the axial force described above, so that a release area is formed between the bearing portion 310 and the cleaning head 1000 (the first mounting member 600 of the cleaning head), as shown in fig. 4, thereby enabling the winding-type dirt accumulated between the bearing portion 310 and the cleaning head 1000 (the first mounting member 600 of the cleaning head) during the cleaning operation of the cleaning head 1000 to be taken out, and fig. 4 shows the displacement direction in which the bearing portion 310 is displaced by the axial force described above after the stirring member 100 is detached.

The present disclosure is designed by the above-described structure such that the gap between the first mount 600 of the cleaning head 1000 and the bearing part 310 increases based on the axial force described above after the stirring member 100 is disassembled, forming a release region, so that the first mount 600 and the bearing part 310 together form a releaser to enable the winding type dirt to be easily removed without having to remove the winding type dirt after all of the driving motor 200, the bearing part 310, and the like are disassembled.

In the present disclosure, the stirring member 100 of the cleaning head 1000 is also 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 facilitating the spatial arrangement 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 driving motor 200 (refer to fig. 12) 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 drive motor 200 of the present disclosure can be fixedly mounted to the cleaning head 1000, for example, based on the first mounting member 600 being fixedly mounted to the cleaning head 1000, and the manner in which the drive motor 200 is fixedly mounted to the cleaning head 1000 can be adjusted by those skilled in the art in light of the present disclosure, 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. 6 to 8, 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. 7) 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. 7) of the driving motor 200 through the opening portion 101.

Referring to fig. 3 to 5, in some embodiments of the present disclosure, the cleaning head 1000 of the present disclosure further includes a first mount 600, and the driving motor 200 is disposed at a first end (front end) of the cleaning head through the first mount 600.

In some embodiments of the present disclosure, the first mount 600 is removably fixedly disposed on the housing 900 of the cleaning head 1000.

Referring to fig. 4, in some embodiments of the present disclosure, the release region described above is formed between the first mount 600 and the bearing portion 310. Referring to fig. 4, in some embodiments of the present disclosure, the bearing portion 310 is displaced away from the first mount 600 along the longitudinal axis under the action of an axial force, thereby forming the relief zone described above.

The state shown in fig. 4 may be regarded as a state in which the bearing portion 310 is about to be displaced immediately after the stirring member 100 is detached.

In some embodiments of the present disclosure, the bearing portion 310 slides on the drive connection portion 230 of the drive motor 200 under the axial force to undergo the displacement.

In some embodiments of the present disclosure, the first mount 600 of the present disclosure is configured to form a portion of a sidewall surface of the cleaning head 1000.

Referring to fig. 6, illustratively, the outer wall surface of the first mount 600 will be formed as part of the side wall surface of the cleaning head 1000.

In some embodiments of the present disclosure, an outer wall surface of the second mount 700, which will be described in detail below, will be formed as a part of a sidewall surface of the cleaning head 1000.

For the cleaning head 1000 for a surface cleaning apparatus of the above-described respective embodiments, preferably, referring to fig. 2, 5, and the like, the driving part 300 described above of the present disclosure further includes the elastic part 320, and the axial force generated in the axial abutment is generated based on the elastic part 320.

Referring to fig. 2 and 5, the resilient portion 320 described above in the present disclosure is at least partially located between the first mount 600 and the bearing portion 310.

A schematic structural view of a first mount 600 of one embodiment of the present disclosure is shown in fig. 16, and the first mount 600 may be in the form of a mounting arm as a whole.

According to a preferred embodiment of the present disclosure, the first mount 600 of the present disclosure includes a support head 610, and the driving motor 200 extends from the support head 610 on a longitudinal axis and is supported by the support head 610.

In some embodiments of the present disclosure, referring to fig. 4 and 16, the bearing portion 310 is axially movably disposed on the support head 610.

In some embodiments of the present disclosure, referring to fig. 5, 9, and 16, the elastic portion 320 of the present disclosure includes a spring sleeved on the support head 610, one end of the spring abutting the first mount 600, and the other end of the spring abutting the bearing portion 310 to provide an axial force.

Preferably, in the cleaning head 1000 for a surface cleaning apparatus of the present disclosure, referring to fig. 2, when the stirring member 100 is mounted on the cleaning head 1000, the bearing portion 310 is positioned within the opening portion 101, so that when the stirring member 100 is mounted on the cleaning head 1000, there is a gap as small as possible between the opening portion 101 of the stirring member 100 and the first mounting member 600, and accumulation of entangled dirt is minimized.

Fig. 9 to 14 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. 9 to 14, 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. 9 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. 9, 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. 9-11 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. 10, 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. 10, 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. 9-13, 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. 12 and 13, 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 ring member 312 cannot rotate but can axially slide with respect 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. 21).

Fig. 14 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. 8, 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. 8, 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. 15 is a schematic diagram showing connection between the driving motor 200 and the driving unit 300 according to an embodiment of the present disclosure.

Fig. 16 is a schematic structural view of a first mount 600 and a first mount 330 of a driving part 300 according to an embodiment of the present disclosure.

Referring to fig. 16, in some embodiments of the present disclosure, the first mount 600 has a support head 610, and the elastic portion 320 is disposed between the first mount 600 and the bearing portion 310 and at least partially sleeved on the support head 610.

The support head 610 may be fixedly disposed on the first mount 600, and the first mount 600 is fixed on the housing 900.

Referring to fig. 14, the support head 610 may preferably have a concave-convex staggered structure for fixedly coupling with the motor coupling portion 3122.

Fig. 17 shows a schematic structural view of a drive motor 200 of one embodiment of the present disclosure. Fig. 18 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. 19 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. 20 illustrates a schematic structural view of the first mount 600 of one embodiment of the present disclosure when mounted to the housing 900, and fig. 20 illustrates a partial structure of the housing 900. Fig. 21 is a partial schematic configuration of a drive motor of an embodiment of the present disclosure.

Referring to fig. 17-19, 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. 17, 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. 17 and 21, 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.

Figure 17 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. 22 is a schematic structural view of a second mount 700 of one embodiment of the present disclosure.

Referring to fig. 22, 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.

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 (10)

1. A cleaning head for a surface cleaning apparatus, comprising:

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

a drive motor disposed at a first end of the cleaning head, the drive motor being mounted to be located inside the agitating member to drive rotation of the agitating member about the longitudinal axis;

wherein the stirring member has an opening portion through which the stirring member can be mounted to the cleaning head along a first axial direction of the drive motor and removed from the cleaning head along a second axial direction of the drive motor; the first axial direction is opposite to the second axial direction; and

a drive portion disposed at a first end of the cleaning head, the drive portion including a bearing portion axially abutting engagement with the opening portion, an axial force being generated in the axial abutment from at least a portion of the bearing portion in the direction of the longitudinal axis to the opening portion such that upon removal of the agitation member from the cleaning head, the bearing portion is displaced along the longitudinal axis under the action of the axial force to form a relief region between the cleaning head and the bearing portion.

2. The cleaning head for a surface cleaning apparatus of claim 1, further comprising:

the first mounting piece is used for enabling the driving motor to be arranged at the first end of the cleaning head.

3. A cleaning head for a surface cleaning apparatus as claimed in claim 2 wherein the relief area is formed between the first mount and the bearing portion.

4. A cleaning head for a surface cleaning apparatus as claimed in claim 2 or claim 3 wherein the bearing portion is moved away from the first mount along the longitudinal axis under the action of the axial force to effect the displacement.

5. A cleaning head for a surface cleaning apparatus as claimed in any one of claims 1 to 3 wherein the first mount is configured to form part of a side wall surface of the cleaning head.

6. A cleaning head for a surface cleaning apparatus as claimed in any one of claims 1 to 3 wherein the drive portion further comprises a resilient portion, the axial force generated in the axial abutment being generated based on the resilient portion.

7. The cleaning head for a surface cleaning apparatus of claim 6 wherein the resilient portion is at least partially located between the first mount and the bearing portion.

8. A cleaning head for a surface cleaning apparatus as claimed in claim 2 or claim 3 wherein the first mount comprises a support head from which the drive motor extends on the longitudinal axis and is supported by the support head.

9. A cleaning head for a surface cleaning apparatus as claimed in any one of claims 1 to 8 wherein the bearing portion is axially movably disposed on the support head;

optionally, the elastic part comprises a spring, the spring is sleeved on the supporting head, one end of the spring abuts against the first mounting piece, and the other end of the spring abuts against the bearing part to provide the axial force;

optionally, the bearing portion is located within the opening portion when the agitation member is mounted on the cleaning head;

optionally, the axial dimension of the opening is greater than the axial dimension of the bearing portion;

optionally, the bearing portion includes a first abutment portion, the opening portion includes a second abutment portion, and the axial abutment occurs when the first abutment portion contacts the second abutment portion;

optionally, the axial abutment includes a first abutment position and a second abutment position, and the stirring member and the bearing portion do not slide axially between the stirring member and the bearing portion 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;

Optionally, the axial abutment includes a first abutment position and a second abutment position, and the stirring member and the bearing portion are relatively stationary during axial movement from the first abutment position to the second abutment position or from the second abutment position to the first abutment position;

optionally, the axial force generated by the elastic portion is gradually increased during the axial movement of the stirring piece and the bearing portion from the first abutting position to the second abutting position, and the axial force is gradually decreased during the axial movement of the stirring piece and the bearing portion from the second abutting position to the first abutting position;

optionally, in the first abutment position, the axial force is zero;

optionally, the bearing portion includes an outer race member, the first abutment portion being located on the outer race member;

optionally, the outer ring member includes an outer ring member first portion and an outer ring member second portion, the outer ring member first portion being located outside the outer ring member second portion in a radial direction of the outer ring member, the first abutting portion being formed on at least a part of the outer ring member first portion;

Optionally, the first abutment comprises a first conical surface and a first annular surface, the first conical surface being located at an outer end of the first annular surface;

optionally, the opening of the stirring piece comprises a second conical surface and a second annular surface, and the second annular surface is positioned at the inner end of the second conical surface;

optionally, when the stirring piece is mounted on the cleaning head, the first annular surface is abutted against the second annular surface, and the first conical surface is abutted against the second conical surface;

optionally, the slope of the first tapered surface is greater than the slope of the second tapered surface;

optionally, the drive motor drives the stirring member by a drive key that engages the stirring member in an axially sliding fit so as not to impede sliding removal of the stirring member;

optionally, the drive key engages the stirring member at an end opposite the drive portion;

optionally, a driving key matching part is arranged in the cavity of the stirring piece, and the stirring piece receives the driving force of the driving key based on the driving key matching part.

10. A surface cleaning apparatus comprising a cleaning head as claimed in any one of claims 1 to 9;

Optionally, the method 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

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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