Cleaning head for a surface cleaning apparatus and surface cleaning apparatus

Abstract

The present disclosure provides a cleaning head for a surface cleaning apparatus, comprising: a hollow agitator having a longitudinal axis, the agitator being mounted rotatable about the longitudinal axis; a drive motor disposed at a first end of the cleaning head, the drive motor being mounted inside the agitator to drive the agitator to rotate about the longitudinal axis; the agitator having an opening portion through which the agitator is mountable to the cleaning head along a first axial direction of the drive motor and removable from the cleaning head along a second axial direction of the drive motor; and a driving portion comprising a bearing portion, the bearing portion being axially abuttingly engaged with the opening portion, an axial force from at least a portion of the bearing portion to the opening portion in the longitudinal axis direction being generated in the axial abutment, such that when the agitator is detached from the cleaning head, the bearing portion is displaced along the longitudinal axis under the action of the axial force to form a release area between the cleaning head and the bearing portion. The present disclosure also provides a surface cleaning apparatus.

Description

Technical Field

[0001] This disclosure relates to the field of cleaning equipment technology, and more particularly to a cleaning head for surface cleaning equipment and a surface cleaning equipment. Background Technology

[0002] Existing surface cleaning equipment (wet surface cleaning equipment, dry surface cleaning equipment, etc.) generally performs cleaning operations based on agitation / stirring of the surface to be cleaned (such as the floor).

[0003] Wet surface cleaning equipment typically includes: a supply tank containing cleaning solution; a recovery tank for collecting contaminants recovered from the cleaned floor; and a motor-driven vacuum source to create a vacuum flow path from the cleaned floor to the recovery tank.

[0004] Surface cleaning equipment typically has a cleaning head device, which is equipped with an agitator / mixer (such as a hollow roller brush) to perform cleaning operations on surfaces, etc.

[0005] The structure of the cleaning head device, such as the structure of the agitator / stirring body and the structure that works in conjunction with the agitator / stirring body, needs to be continuously optimized and improved. Summary of the Invention

[0006] This disclosure provides a cleaning head for a surface cleaning device and a surface cleaning device.

[0007] According to one aspect of this disclosure, a cleaning head for a surface cleaning device is provided, comprising: A hollow agitator having a longitudinal axis, the agitator being mounted to be rotatable about the longitudinal axis; A drive motor is disposed at the first end of the cleaning head, the drive motor being mounted inside the agitator to drive the agitator to rotate about the longitudinal axis; The agitator has an opening, through which it can be mounted on the cleaning head along a first axial direction of the drive motor, and through which it can be removed from the cleaning head along a second axial direction of the drive motor; the first axial direction and the second axial direction are opposite in direction. A drive unit is provided at the first end of the cleaning head, the drive unit including a bearing unit, the bearing unit being axially engaged with the opening, the axial engagement generating an axial force from at least a portion of the bearing unit along the longitudinal axis to the opening, such that when the agitator is removed from the cleaning head, the bearing unit is displaced along the longitudinal axis under the action of the axial force to form a release area between the cleaning head and the bearing unit.

[0008] A cleaning head for a surface cleaning device according to at least one embodiment of the present disclosure further includes: The first mounting component is used to mount the drive motor at the first end of the cleaning head.

[0009] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the release area is formed between the first mounting member and the bearing portion.

[0010] According to at least one embodiment of the present disclosure, in a surface cleaning device, the bearing portion is displaced away from the first mounting member along the longitudinal axis under the action of the axial force.

[0011] According to at least one embodiment of the present disclosure, in a surface cleaning device, the first mounting member is configured to form part of the sidewall surface of the cleaning head.

[0012] According to at least one embodiment of the present disclosure, the cleaning head for a surface cleaning device further includes an elastic portion, the axial force generated during the axial contact being generated based on the elastic portion.

[0013] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the elastic portion is at least partially located between the first mounting member and the bearing portion.

[0014] According to at least one embodiment of the present disclosure, a cleaning head for a surface cleaning device includes a first mounting member comprising a support head from which the drive motor extends along the longitudinal axis and is supported by the support head.

[0015] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the bearing portion is axially movably disposed on the support head.

[0016] According to at least one embodiment of the present disclosure, a cleaning head for a surface cleaning device includes an elastic portion comprising a spring sleeved on the support head, one end of the spring abutting against the first mounting member and the other end of the spring abutting against the bearing portion to provide axial force.

[0017] According to at least one embodiment of the present disclosure, in a surface cleaning device, when the agitator is mounted on the cleaning head, the bearing portion is located within the opening.

[0018] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the axial dimension of the opening is greater than the axial dimension of the bearing portion.

[0019] According to at least one embodiment of the present disclosure, a cleaning head for a surface cleaning device includes a bearing portion comprising a first abutment portion and an opening portion comprising a second abutment portion, wherein the axial abutment occurs when the first abutment portion contacts the second abutment portion.

[0020] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the axial contact includes a first contact position and a second contact position, wherein during the axial movement of the agitator and the bearing portion from the first contact position to the second contact position, or from the second contact position to the first contact position, no axial sliding occurs between the bearing portion and the agitator.

[0021] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the axial contact includes a first contact position and a second contact position, wherein the agitator and the bearing portion are relatively stationary during axial movement from the first contact position to the second contact position, or during axial movement from the second contact position to the first contact position.

[0022] According to at least one embodiment of the cleaning head for a surface cleaning device of the present disclosure, during the axial movement of the agitator and the bearing portion from the first contact position to the second contact position, the axial force generated by the elastic portion gradually increases, and during the axial movement of the agitator and the bearing portion from the second contact position to the first contact position, the axial force gradually decreases.

[0023] According to at least one embodiment of the present disclosure, in the first abutment position, the axial force of the cleaning head for a surface cleaning device is zero.

[0024] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the bearing portion includes an outer ring member, and the first abutment portion is located on the outer ring member.

[0025] According to at least one embodiment of the present disclosure, a cleaning head for a surface cleaning device includes an outer ring member comprising a first portion and a second portion, wherein the first portion is located outside the second portion of the outer ring member in the radial direction of the outer ring member, and the first abutment portion is formed on at least a portion of the first portion of the outer ring member.

[0026] According to at least one embodiment of the present disclosure, a cleaning head for a surface cleaning device includes a first abutting portion comprising a first conical surface and a first annular surface, wherein the first conical surface is located at the outer end of the first annular surface.

[0027] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the opening of the agitator includes a second conical surface and a second annular surface, the second annular surface being located at the inner end of the second conical surface.

[0028] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, when the agitator is mounted on the cleaning head, the first annular surface abuts against the second annular surface, and the first conical surface abuts against the second conical surface.

[0029] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the slope of the first conical surface is greater than the slope of the second conical surface.

[0030] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, a drive motor drives the agitator via a drive key, the drive key engaging the agitator in an axial sliding fit so as not to impede the sliding removal of the agitator.

[0031] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, the drive key engages the agitator at an end opposite to the drive section.

[0032] According to at least one embodiment of the present disclosure, in a cleaning head for a surface cleaning device, a drive key engagement portion is provided within the cavity of the agitator, and the agitator receives the driving force of the drive key based on the drive key engagement portion.

[0033] According to another aspect of this disclosure, a surface cleaning apparatus is provided, including a cleaning head according to any embodiment of this disclosure.

[0034] The surface cleaning apparatus according to at least one embodiment of the present disclosure further includes: A supply box for supplying cleaning fluid to the cleaning head, enabling the cleaning head to perform cleaning operations on the surface to be cleaned based on the cleaning fluid. A recycling bin is used to store the dirt generated after the cleaning head has performed a cleaning operation on the surface to be cleaned. Attached Figure Description

[0035] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0036] Figure 1 This is a schematic diagram of the overall structure of a cleaning head according to one embodiment of the present disclosure.

[0037] Figure 2 This is a partial structural schematic diagram of a cleaning head according to one embodiment of the present disclosure.

[0038] Figure 3 This is a partial structural schematic diagram of a cleaning head according to one embodiment of the present disclosure.

[0039] Figure 4 This is a partial structural schematic diagram of a cleaning head according to one embodiment of the present disclosure.

[0040] Figure 5 This is a partial structural schematic diagram of a cleaning head according to one embodiment of the present disclosure.

[0041] Figure 6 This is a partial structural schematic diagram of a cleaning head according to one embodiment of the present disclosure.

[0042] Figure 7 This is a schematic diagram of the overall structure of a drive motor and drive unit according to one embodiment of the present disclosure.

[0043] Figure 8 This is a schematic diagram of the overall structure of the agitator according to one embodiment of the present disclosure.

[0044] Figures 9 to 14 A schematic diagram of the overall structure of the drive unit and schematic diagrams of the structure of each sub-component are shown in one embodiment of the present disclosure.

[0045] Figure 15 This is a schematic diagram of the connection between the drive motor and the drive unit according to one embodiment of the present disclosure.

[0046] Figure 16 This is a schematic diagram of the structure of the first mounting part and the first mounting part of the drive part according to one embodiment of the present disclosure.

[0047] Figure 17 This is a schematic diagram of the structure of a drive motor according to one embodiment of the present disclosure.

[0048] Figure 18 This is a schematic diagram of the structure of the agitator as viewed from the opening in one embodiment of this disclosure.

[0049] Figure 19 This is a schematic diagram of the structure of one embodiment of the present disclosure when viewed from the other end of the agitator.

[0050] Figure 20 This is a schematic diagram of the structure when the first mounting component of one embodiment of this disclosure is installed in the housing.

[0051] Figure 21 This is a partial structural schematic diagram of a drive motor according to one embodiment of the present disclosure.

[0052] Figure 22 This is a schematic diagram of the structure of the second mounting component according to one embodiment of the present disclosure.

[0053] Explanation of reference numerals in the attached figures 100 Agitator 101 Opening 102 Second end 110 Drive Key Mating Part 200 drive motor 210 Drive Key 220 Motor housing 230 Drive Connection Section 300 Drive Unit 310 Bearing Section 311 Outer ring component 312 Inner Ring Part 313 Intermediate Ring 320 Elastic Part 330 First Installation Department 400 Flexible Part 500 Second Bearing 600 First Installer 610 support head 700 Second Installation Component 710 snap-fit ​​structure 720 Circular section 900 housing 901 Protrusion 1000 Cleaning Head 1011 Second conical surface 1012 Second annular surface 3111 First conical surface 3112 First annular surface 3121 Inner skirt piece 3122 Motor connection part 3123 Inner flange A. Outer ring part one B. Outer ring, second part. Detailed Implementation

[0054] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0055] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0056] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0057] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0058] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0059] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0060] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0061] Figure 1 A schematic diagram of the overall structure of a cleaning head 1000 according to one embodiment of the present disclosure is shown. Figure 2 This is a partial structural schematic diagram of a cleaning head 1000 according to one embodiment of the present disclosure, showing the agitator, bearing, etc. Figure 3 This is a partial structural schematic diagram of a cleaning head 1000 according to one embodiment of the present disclosure, showing an agitator, a first mounting member, and a second mounting member. Figure 4 This is a partial structural schematic diagram of a cleaning head 1000 according to one embodiment of the present disclosure. Figure 3 The agitator has been removed from the original design, revealing the bearing assembly, drive motor, and other components. Figure 5 This is a partial structural schematic diagram of a cleaning head 1000 according to one embodiment of the present disclosure. Figure 4 The bearing section has been removed from the original design, revealing the elastic section, drive motor, etc.

[0062] First refer to Figures 1 to 5 The cleaning head 1000 for a surface cleaning device disclosed herein will be described. (Reference) Figures 1 to 5 In some embodiments of this disclosure, the cleaning head 1000 for a surface cleaning device includes: A hollow agitator 100 has a longitudinal axis and is mounted to be able to rotate about the longitudinal axis. A drive motor 200 is provided at the first end (front end) of the cleaning head 1000. The drive motor 200 is installed inside the agitator 100 to drive the agitator 100 to rotate about the longitudinal axis. The agitator 100 has an opening 101, through which the agitator 100 can be mounted on the cleaning head 1000 along the first axis of the drive motor 200, and through which it can be removed from the cleaning head 1000 along the second axis of the drive motor 200; the first axis and the second axis are in opposite directions. A drive unit 300 is provided at the first end (front end) of the cleaning head 1000. The drive unit 300 includes a bearing unit 310. The bearing unit 310 is axially engaged with the opening 101. During the axial engagement, an axial force is generated from at least a portion of the bearing unit 310 along the longitudinal axis to the opening 101. This causes the bearing unit 310 to be displaced along the longitudinal axis under the action of the axial force after the agitator 100 is removed from the cleaning head 1000, so as to form a release area between the cleaning head and the bearing unit 310 (through which entangled dirt (hair, etc.) can be removed).

[0063] The cleaning head 1000 disclosed herein can be used in surface cleaning equipment such as floor scrubbers to clean surfaces awaiting cleaning.

[0064] This disclosure provides a method for engaging the bearing portion 310 with the opening portion 101 in an axially abutting manner. This creates an axial force from the bearing portion 310 along the longitudinal axis to the opening portion 101 during the axial contact. As a result, when the agitator 100 is removed from the cleaning head 1000, the bearing portion 310 is displaced along the longitudinal axis under the action of the axial force, thereby forming a release area between the cleaning head and the bearing portion 310. Through this release area, entangled dirt (such as hair) can be removed.

[0065] Figure 2 A schematic diagram of the installation of the agitator 100 and bearing portion 310 in some embodiments of the present disclosure is shown. When the agitator 100 is installed on the cleaning head 1000, the bearing portion 310 is held within the opening 101.

[0066] refer to Figure 3 and Figure 4When the agitator 100 is removed from the cleaning head 1000, the bearing portion will be displaced under the axial force described above, thereby creating a release area between the bearing portion 310 and the cleaning head 1000 (the first mounting part 600 of the cleaning head), such as... Figure 4 As shown, this allows the entangled dirt accumulated between the bearing portion 310 and the cleaning head 1000 (the first mounting member 600 of the cleaning head) to be removed during the cleaning operation. Figure 4 The direction of displacement of the bearing portion 310 under the action of the axial force described above is shown after the agitator 100 is disassembled.

[0067] Through the above-described structural design, this disclosure enables the gap between the first mounting member 600 and the bearing portion 310 of the cleaning head 1000 to increase based on the axial force described above after the agitator 100 is removed, forming a release area. This allows the first mounting member 600 and the bearing portion 310 to jointly form a release device, making it easy to remove tangled dirt without having to completely disassemble components such as the drive motor 200 and the bearing portion 310 before removing the tangled dirt.

[0068] In this disclosure, the agitator 100 of the cleaning head 1000 is also configured as a hollow structure, so that the agitator 100 has a hollow cavity to accommodate the drive motor 200, thereby facilitating the spatial configuration of the cleaning head 1000.

[0069] The agitator 100 of this disclosure preferably has a cylindrical outer surface, so that when driven by the drive motor 200, it can rotate about its own longitudinal axis (see reference). Figure 12 This allows for the cleaning of surfaces on the ground that are awaiting cleaning.

[0070] In some embodiments of this disclosure, a flexible portion 400 is provided on the outer surface of the agitator 100. The flexible portion 400 may be formed of sponge or fluff, and this disclosure does not make any particular limitation thereto.

[0071] In order to make the cleaning head 1000 of this disclosure easier to assemble and disassemble, the drive motor 200 of this disclosure can be fixedly installed to the cleaning head 1000, for example, fixedly installed to the cleaning head 1000 based on the first mounting member 600. Any adjustments made by those skilled in the art to the method of fixing the drive motor 200 to the cleaning head 1000 under the guidance of the technical solution of this disclosure fall within the protection scope of this disclosure.

[0072] In some embodiments of this disclosure, both the drive motor 200 and the agitator 100 are mounted at the first end of the cleaning head 1000, for example... Figure 1 The front end of the cleaning head 1000 is shown.

[0073] refer to Figures 6 to 8 The agitator 100 of this disclosure, by providing an opening 101, allows the agitator 100 to move along the first axial direction of the drive motor 200 (see reference). Figure 7 It is mounted on the cleaning head 1000 and can be installed along the second axis of the drive motor 200 through the opening 101 (see reference). Figure 7 Remove from cleaning head 1000.

[0074] refer to Figures 3 to 5 In some embodiments of this disclosure, the cleaning head 1000 further includes a first mounting member 600, and the drive motor 200 is disposed at a first end (front end) of the cleaning head via the first mounting member 600.

[0075] In some embodiments of this disclosure, the first mounting member 600 is detachably fixed to the housing 900 of the cleaning head 1000.

[0076] refer to Figure 4 In some embodiments of this disclosure, the release area described above is formed between the first mounting member 600 and the bearing portion 310. (See reference...) Figure 4 In some embodiments of this disclosure, the bearing portion 310 is displaced away from the first mounting member 600 along the longitudinal axis under the action of axial force, thereby forming the release area described above.

[0077] Figure 4 The state shown can be considered as the state when the agitator 100 has just been removed and the bearing part 310 is about to be displaced.

[0078] In some embodiments of this disclosure, under the action of axial force, the bearing portion 310 slides on the drive connection portion 230 of the drive motor 200 to produce the aforementioned displacement.

[0079] In some embodiments of this disclosure, the first mounting member 600 is configured to form part of the sidewall surface of the cleaning head 1000.

[0080] refer to Figure 6 For example, the outer wall surface of the first mounting member 600 will be formed as part of the side wall surface of the cleaning head 1000.

[0081] In some embodiments of this disclosure, the outer wall surface of the second mounting member 700, which will be described in detail below, is formed as part of the side wall surface of the cleaning head 1000.

[0082] For the cleaning head 1000 of the surface cleaning device in the above embodiments, preferably, refer to Figure 2 , Figure 5The drive unit 300 described above in this disclosure also includes an elastic part 320, and the axial force generated during axial contact is generated based on the elastic part 320.

[0083] refer to Figure 2 , Figure 5 The elastic portion 320 described above in this disclosure is located at least partially between the first mounting member 600 and the bearing portion 310.

[0084] Figure 16 The diagram shows a structural schematic of a first mounting member 600 according to an embodiment of the present disclosure. The first mounting member 600 may be in the form of a mounting arm as a whole.

[0085] According to a preferred embodiment of the present disclosure, the first mounting member 600 of the present disclosure includes a support head 610, and a drive motor 200 extends from the support head 610 on a longitudinal axis and is supported by the support head 610.

[0086] In some embodiments of this disclosure, reference is made to Figure 4 and Figure 16 The bearing portion 310 is axially movable on the support head 610.

[0087] In some embodiments of this disclosure, reference is made to Figure 5 , Figure 9 , Figure 16 The elastic part 320 of this disclosure includes a spring sleeved on the support head 610, with one end of the spring abutting against the first mounting member 600 and the other end of the spring abutting against the bearing part 310 to provide axial force.

[0088] Preferably, in the cleaning head 1000 for surface cleaning equipment of this disclosure, reference is made to... Figure 2 When the agitator 100 is installed on the cleaning head 1000, the bearing portion 310 is located inside the opening portion 101, so that when the agitator 100 is installed on the cleaning head 1000, there is a small gap between the opening portion 101 of the agitator 100 and the first mounting member 600, so as to minimize the accumulation of entangled dirt.

[0089] Figures 9 to 14 A schematic diagram of the overall structure of the drive unit 300 and schematic diagrams of the structure of each sub-component are shown in one embodiment of the present disclosure.

[0090] refer to Figures 9 to 14This disclosure provides a drive unit 300 including a bearing portion 310 and an elastic portion 320, and the bearing portion 310 is axially engaged with the opening portion 101. When the agitator 100 is installed on the cleaning head 1000, an axial force generated by the elastic portion 320 is formed between the bearing portion 310 and the opening portion 101, thereby enabling a portion of the bearing portion 310 (outer ring 311) to rotate with the rotation of the agitator 100.

[0091] In some embodiments of this disclosure, the elastic portion 320 of the drive portion 300 of the cleaning head 1000 for surface cleaning equipment includes a spring, one end of which abuts against a first end of the cleaning head 1000, and the other end of which abuts against a bearing portion 310, such that a portion of the bearing portion 310 (the portion abutted by the spring, i.e., the inner ring 312) can reciprocate along the longitudinal axis, providing an axial mounting preload force for the bearing portion 310.

[0092] Figure 9 The elastic part 320 of this disclosure is shown. The elastic part 320 of this disclosure includes a spring, preferably a helical spring, one end (first end) of which abuts against the first end of the cleaning head 1000.

[0093] The other end (second end) of the spring abuts against a portion of the bearing portion 310, as described in some embodiments of this disclosure, with reference to... Figure 9 The other end (second end) of the spring abuts against the end face of a portion of the bearing portion 310. In other embodiments of this disclosure, the other end (second end) of the spring is embedded in a groove in the aforementioned portion of the bearing portion 310 to abut against the aforementioned portion of the bearing portion 310.

[0094] Those skilled in the art, inspired by the technical solutions disclosed herein, may use, for example, elastic cylinders as the elastic part 320 of this disclosure, and all such use shall fall within the protection scope of this disclosure.

[0095] This disclosure provides an axial installation preload for the bearing portion 310 by providing the elastic portion 320, thereby forming an axial force generated by the elastic portion 320 between the bearing portion 310 and the opening portion 101 when the agitator 100 is installed on the cleaning head 1000.

[0096] For the cleaning head 1000 of the surface cleaning device in the above embodiments, preferably, the bearing portion 310 includes a first abutting portion, the opening portion 101 includes a second abutting portion, and the axial abutting described above occurs when the first abutting portion and the second abutting portion come into contact.

[0097] In the cleaning head 1000 for surface cleaning equipment according to some embodiments of this disclosure, the axial contact described above includes a first contact position and a second contact position. During the axial movement of the agitator 100 and the bearing portion 310 from the first contact position to the second contact position, or from the second contact position to the first contact position, no axial sliding occurs between the bearing portion 310 and the agitator 100.

[0098] In some embodiments of this disclosure, during the process of installing the agitator 100 onto the cleaning head 1000, after the agitator 100 is fitted with the drive motor 200, it will axially abut against the bearing portion 310 at the first abutment position. Continuing to operate the agitator 100 will cause the agitator 100 and the bearing portion 310 to move axially together towards the second abutment position. During this process, no axial sliding occurs between the bearing portion 310 and the agitator 100. During this process, the axial installation preload provided by the elastic portion 320 will gradually increase so that after the agitator 100 is installed, the required axial force is formed between the bearing portion 310 and the opening 101 of the agitator 100.

[0099] In some embodiments of this disclosure, the axial contact described above includes a first contact position and a second contact position. During the process of the agitator 100 and the bearing portion 310 moving axially from the first contact position to the second contact position, or during the process of moving axially from the second contact position to the first contact position, the bearing portion 310 and the agitator 100 are relatively stationary.

[0100] In some embodiments of this disclosure, during the axial movement of the agitator 100 and bearing portion 310 of the cleaning head 1000 for surface cleaning equipment from the first contact position to the second contact position, the axial force generated by the elastic portion 320 gradually increases, and during the axial movement of the agitator 100 and bearing portion 310 from the second contact position to the first contact position, the axial force gradually decreases.

[0101] According to a preferred embodiment of the present disclosure, the cleaning head 1000 for a surface cleaning device of the present disclosure has zero axial force in the first contact position described above.

[0102] For the cleaning head 1000 of the surface cleaning equipment in the above embodiments, the bearing part 310 includes an outer ring 311, and the first abutment part described above is located on the outer ring 311.

[0103] Figures 9 to 11 The outer ring 311 of this disclosure is shown in both cases. The outer ring 311 of this disclosure is in the form of a seat ring.

[0104] refer to Figure 10Preferably, the outer ring 311 of the bearing portion 310 of the cleaning head 1000 for surface cleaning equipment of the present disclosure includes a first outer ring portion A and a second outer ring portion B. In the radial direction of the outer ring portion 311, the first outer ring portion A is located outside the second outer ring portion B, and a first abutment portion as described above is formed on at least a portion of the first outer ring portion A.

[0105] In some embodiments of this disclosure, the outer diameter of the second portion B of the outer ring is smaller than the inner diameter of the agitator 100.

[0106] In some embodiments of this disclosure, the outer diameter of the second portion B of the outer ring is greater than or equal to the outer diameter of the drive motor 200.

[0107] In the cleaning head 1000 for surface cleaning equipment disclosed herein, the second part B of the outer ring serves as the outer ring of the bearing part 310.

[0108] Continue to refer to Figure 10 In some embodiments of this disclosure, the first abutting portion of the outer ring member 311 of the bearing portion 310 includes a first conical surface 3111 and a first annular surface 3112, with the first conical surface 3111 located at the outer end of the first annular surface 3112.

[0109] refer to Figures 9 to 13 The image shows an inner ring 312 of a bearing portion 310 according to one embodiment of the present disclosure. In some embodiments of the present disclosure, the inner ring 312 receives the axial force generated by the elastic portion 320 described above and transmits it to the outer ring 311.

[0110] refer to Figure 12 and Figure 13 The inner ring member 312 may have an inner ring member skirt 3121, an inner flange 3123 fixedly connected to or integrally formed with the inner ring member skirt 3121, and a motor connection portion 3122. The radial dimension of the inner flange 3123 is larger than the maximum radial dimension of the motor connection portion 3122.

[0111] The motor connection part 3122 preferably has an interlocking structure. Based on this interlocking structure, the drive connection part 230 of the drive motor 200 can be axially engaged with the motor connection part 3122, so that the inner ring part 312 cannot rotate relative to the drive connection part 230 but can slide axially.

[0112] The drive connection portion 230 is preferably configured with an alternating concave-convex structure to cooperate with the motor connection portion 3122 (see reference). Figure 21 ).

[0113] Figure 14An intermediate ring 313 is shown disposed between the inner ring 312 and the outer ring 311. The inner ring of the intermediate ring 313 abuts against the inner flange 3123 described above, but does not contact the motor connection part 3122. The intermediate ring 313 is rotatable relative to the inner ring 312, and the outer ring 311 is rotatable relative to the intermediate ring 313 and the inner ring 312, so that the outer ring 311 can rotate with the agitator 100.

[0114] In some embodiments of this disclosure, reference is made to Figure 8 Preferably, the opening 101 of the agitator 100 of the cleaning head 1000 of the surface cleaning device disclosed herein includes a second conical surface 1011 and a second annular surface 1012, wherein the second annular surface 1012 is located at the inner end of the second conical surface 1011.

[0115] refer to Figure 8 Preferably, the longitudinal axis of the agitator 100 is perpendicular to the second annular surface 1012.

[0116] In some embodiments of this disclosure, when the agitator 100 of the cleaning head 1000 of the surface cleaning device of this disclosure is installed on the cleaning head 1000, the first annular surface 3112 described above abuts against the second annular surface 1012 described above, and the first conical surface 3111 described above abuts against the second conical surface 1011 described above.

[0117] In some embodiments of this disclosure, preferably, in the cleaning head 1000 for surface cleaning equipment of this disclosure, the slope of the first conical surface 3111 described above is greater than the slope of the second conical surface 1011, such that when the first conical surface 3111 comes into contact with the second conical surface 1011, a gap is partially formed between them.

[0118] Figure 15 This is a schematic diagram showing the connection between the drive motor 200 and the drive unit 300 according to one embodiment of this disclosure.

[0119] Figure 16 This is a schematic diagram of the structure of the first mounting part 600 and the first mounting part 330 of the drive part 300 according to one embodiment of the present disclosure.

[0120] refer to Figure 16 In some embodiments of this disclosure, the first mounting member 600 has a support head 610, and an elastic portion 320 is disposed between the first mounting member 600 and the bearing portion 310, and is at least partially sleeved on the support head 610.

[0121] The support head 610 can be fixedly mounted on the first mounting member 600, which is fixed on the housing 900.

[0122] refer to Figure 14 Preferably, the support head 610 can be a concave-convex structure for fixed connection with the motor connection part 3122.

[0123] Figure 17 A schematic diagram of the structure of a drive motor 200 according to one embodiment of the present disclosure is shown. Figure 18 This is a schematic diagram of the structure of the agitator 100 as viewed from the opening 101 according to one embodiment of the present disclosure. Figure 19 This is a structural schematic diagram of one embodiment of the present disclosure as viewed from the other end of the agitator 100. Figure 20 This diagram shows a structural schematic of a first mounting member 600 installed in a housing 900 according to an embodiment of the present disclosure. Figure 20 A partial structure of housing 900 is shown. Figure 21 This is a partial structural schematic diagram of a drive motor according to one embodiment of the present disclosure.

[0124] refer to Figures 17 to 19 In some embodiments of this disclosure, preferably, the drive motor 200 of the cleaning head 1000 of the surface cleaning device of this disclosure drives the agitator 100 through the drive key 210, and the drive key 210 engages the agitator 100 in an axial sliding fit so as not to obstruct the sliding removal of the agitator 100.

[0125] The agitator 100 will rotate following the drive key 210.

[0126] refer to Figure 17 In some embodiments of this disclosure, the drive key 210 engages the agitator 100 at the end opposite to the drive portion 300.

[0127] refer to Figure 17 and Figure 21 The drive motor 200 may include a motor housing 220 and a drive connection part 230 integrally formed or fixedly connected to the motor housing 220. The output shaft of the drive motor 200 and the drive connection part 230 are respectively disposed at both ends of the motor housing 220. The output shaft of the drive motor 200 outputs rotational action via a drive key 210. The drive key 210 is fixedly disposed on the output shaft of the drive motor 200. The drive key 210 may include a plurality of columns evenly distributed in the circumferential direction to transmit driving force to the agitator 100.

[0128] In some embodiments of this disclosure, the agitator 100 of the cleaning head 100 of this disclosure is provided with a drive key engagement part 110 in its cavity, and the agitator 100 receives the driving force of the drive key 210 based on the drive key engagement part 110.

[0129] In some embodiments of this disclosure, the drive key mating portion 110 includes a plurality of concave portions evenly distributed in the circumferential direction to mate with the column of the drive key 210.

[0130] Those skilled in the art, inspired by the technical solutions disclosed herein, can adjust the structure of the drive key 210 and the drive key mating part 110, all of which fall within the protection scope of this disclosure.

[0131] Figure 17 A second bearing 500 is also shown, based on which the second end 102 of the agitator 100 can be rotatably connected to the second mounting member 700 of the cleaning head 1000, the second mounting member 700 being fixed to the housing 900.

[0132] Figure 22 This is a schematic diagram of the structure of the second mounting component 700 according to one embodiment of the present disclosure.

[0133] refer to Figure 22 The second mounting member 700 has a circular portion 720 at one end and a snap-fit ​​structure 710 at the other end. Preferably, in some embodiments of this disclosure, the snap-fit ​​structure 710 includes a groove for engaging with a protrusion 901 on the housing 900 of the cleaning head 1000.

[0134] Based on the circular portion 720 of the second mounting member 700 and the second bearing 500, the second end 102 of the agitator 100 is rotatably connected to the circular portion 720 of the second mounting member 700.

[0135] The surface cleaning apparatus of some embodiments of this disclosure includes the cleaning head 1000 of any of the above embodiments.

[0136] The surface cleaning apparatus of some embodiments of this disclosure further includes: The supply box is used to supply cleaning medium to the cleaning head 1000, enabling the cleaning head 1000 to perform cleaning operations on the surface to be cleaned based on the cleaning medium. The recycling bin is used to store the dirt generated after the cleaning head 1000 has performed cleaning operations on the surface to be cleaned.

[0137] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0138] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0139] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A cleaning head for a surface cleaning device, characterized in that, include: A hollow agitator having a longitudinal axis, the agitator being mounted to be rotatable about the longitudinal axis; A drive motor is disposed at the first end of the cleaning head, the drive motor being mounted inside the agitator to drive the agitator to rotate about the longitudinal axis; The agitator has an opening, through which it can be mounted on the cleaning head along a first axial direction of the drive motor, and through which it can be removed from the cleaning head along a second axial direction of the drive motor; the first axial direction and the second axial direction are opposite in direction. A drive unit is provided at the first end of the cleaning head, the drive unit including a bearing unit, the bearing unit being axially engaged with the opening, the axial engagement generating an axial force from at least a portion of the bearing unit along the longitudinal axis to the opening, such that when the agitator is removed from the cleaning head, the bearing unit is displaced along the longitudinal axis under the action of the axial force to form a release area between the cleaning head and the bearing unit; as well as A first mounting member is provided, wherein the drive motor is disposed at a first end of the cleaning head via the first mounting member; the first mounting member includes a support head, the drive motor extends from the support head along the longitudinal axis and is supported by the support head; the bearing portion includes a first abutment portion, the opening portion includes a second abutment portion, and the axial abutment is generated when the first abutment portion contacts the second abutment portion; The bearing assembly includes an outer ring, an inner ring, and an intermediate ring. The first abutting portion is located on the outer ring. The inner ring receives the axial force generated by the elastic portion and transmits it to the outer ring. The inner ring may have an inner ring skirt, an inner flange fixedly connected to or integrally formed with the inner ring skirt, and a motor connection portion. The radial dimension of the inner flange is greater than the maximum radial dimension of the motor connection portion. The intermediate ring is disposed between the inner ring and the outer ring. The inner ring of the intermediate ring abuts against the inner flange but does not contact the motor connection portion. The intermediate ring can rotate relative to the inner ring, and the outer ring can rotate relative to both the intermediate and inner rings, allowing the outer ring to rotate with the agitator.

2. The cleaning head for a surface cleaning device according to claim 1, characterized in that, The release area is formed between the first mounting member and the bearing portion.

3. The cleaning head for a surface cleaning device according to claim 1, characterized in that, The bearing portion moves away from the first mounting member along the longitudinal axis under the action of the axial force, thus undergoing the displacement.

4. The cleaning head for a surface cleaning device according to claim 1, characterized in that, The first mounting element is configured to form part of the sidewall surface of the cleaning head.

5. The cleaning head for a surface cleaning device according to claim 1, characterized in that, The drive unit also includes an elastic part, and the axial force generated during the axial contact is generated based on the elastic part.

6. The cleaning head for a surface cleaning device according to claim 5, characterized in that, The elastic portion is located at least partially between the first mounting member and the bearing portion.

7. The cleaning head for a surface cleaning device according to claim 1, characterized in that, The bearing portion is axially movable on the support head.

8. The cleaning head for a surface cleaning device according to any one of claims 1-7, characterized in that, The elastic part includes a spring, which is sleeved on the support head. One end of the spring abuts against the first mounting member, and the other end of the spring abuts against the bearing part to provide the axial force. Optionally, when the agitator is mounted on the cleaning head, the bearing portion is located within the opening; Optionally, the axial dimension of the opening is larger than the axial dimension of the bearing portion; Optionally, the axial contact includes a first contact position and a second contact position. During the process of the agitator and the bearing moving axially from the first contact position to the second contact position, or from the second contact position to the first contact position, no axial sliding occurs between the bearing and the agitator. Optionally, the axial contact includes a first contact position and a second contact position. During the process of the agitator and the bearing moving axially from the first contact position to the second contact position, or from the second contact position to the first contact position, the bearing and the agitator remain relatively stationary. Optionally, during the axial movement of the agitator and the bearing from the first contact position to the second contact position, the axial force generated by the elastic part gradually increases, and during the axial movement of the agitator and the bearing from the second contact position to the first contact position, the axial force gradually decreases. Optionally, at the first abutment position, the axial force is zero; Optionally, the outer ring member includes a first portion and a second portion, wherein the first portion is located outside the second portion in the radial direction of the outer ring member, and the first abutment portion is formed on at least a portion of the first portion. Optionally, the first abutting portion includes a first conical surface and a first annular surface, wherein the first conical surface is located at the outer end of the first annular surface; Optionally, the opening of the agitator includes a second conical surface and a second annular surface, wherein the second annular surface is located at the inner end of the second conical surface; Optionally, when the agitator is installed on the cleaning head, the first annular surface abuts against the second annular surface, and the first conical surface abuts against the second conical surface; Optionally, the slope of the first conical surface is greater than the slope of the second conical surface; Optionally, the drive motor drives the agitator via a drive key, the drive key engaging the agitator in an axial sliding fit so as not to obstruct the sliding removal of the agitator; Optionally, the drive key engages the agitator at the end opposite to the drive section; Optionally, the cavity of the agitator is provided with a drive key engagement part, and the agitator receives the driving force of the drive key based on the drive key engagement part.

9. A surface cleaning device, characterized in that, The cleaning head includes any one of claims 1 to 8.

10. The surface cleaning equipment according to claim 9, characterized in that, Also includes: A supply box for supplying cleaning fluid to the cleaning head, enabling the cleaning head to perform cleaning operations on the surface to be cleaned based on the cleaning fluid. as well as A recycling bin is used to store the dirt generated after the cleaning head has performed a cleaning operation on the surface to be cleaned.

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