CN114376473B

CN114376473B - Cleaning base and surface cleaning apparatus

Info

Publication number: CN114376473B
Application number: CN202111466470.3A
Authority: CN
Inventors: 唐成; 段飞; 钟亮
Original assignee: Beijing Shunzao Technology Co Ltd
Current assignee: Beijing Shunzao Technology Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2023-03-28
Anticipated expiration: 2041-12-03
Also published as: CN114376473A

Abstract

The present disclosure provides a cleaning base comprising a cleaning head housing module, a moving wheel module, a cleaning drive, a cleaning module, and a stand portion; the cleaning driving device is provided with a first connecting piece, a second connecting piece is arranged inside the first power portion, when the support portion is installed on the cleaning head shell module, and the first connecting piece and the second connecting piece are in mutual contact, the first connecting piece can move along the direction away from the second connecting piece, and/or the second connecting piece can move along the direction away from the first connecting piece, and the support portion is installed behind the cleaning head shell module, the first connecting piece and the second connecting piece can not form transmission connection, and when the first connecting piece is driven to rotate, the first connecting piece can move along the direction close to the second connecting piece, and/or the second connecting piece can move along the direction close to the first connecting piece, so that the first connecting piece and the second connecting piece are in transmission connection.

Description

Cleaning base and surface cleaning apparatus

Technical Field

The present disclosure relates to a cleaning base and a surface cleaning apparatus.

Background

The surface cleaning apparatus is suitable for cleaning hard floor surfaces such as ceramic tiles, hardwood floors, soft carpeted surfaces and the like.

When the surface cleaning device cleans the surface to be cleaned, the cleaning liquid is firstly conveyed to the cleaning module and is applied to the surface to be cleaned through the cleaning module, and when the cleaning module and the surface to be cleaned generate relative motion, the surface to be cleaned is cleaned.

When cleaning the surface to be cleaned, the cleaning module can be wound around objects such as hair, and the cleaning module needs to be detached and cleaned; furthermore, when the surface cleaning apparatus is not used for a long time, the cleaning module is also required to be detached and stored in the storage container to prevent the cleaning module from generating odor.

However, when the cleaning module of the surface cleaning apparatus in the prior art is mounted on the surface cleaning apparatus, the connecting parts are difficult to assemble due to the non-corresponding positions, which greatly affects the user experience.

Disclosure of Invention

To solve one of the above technical problems, the present disclosure provides a cleaning base and a surface cleaning apparatus.

According to one aspect of the present disclosure, there is provided a cleaning base comprising:

a cleaning head housing module formed as at least a portion of an outer surface of the cleaning base and formed with a receptacle;

a moving wheel module coupled to the cleaning head housing module, the moving wheel module being in contact with a surface to be cleaned when the cleaning base is in operation;

a cleaning drive device disposed at the cleaning head housing module for generating a driving force;

the cleaning module is arranged on the cleaning head shell module, is positioned in the accommodating part of the cleaning head shell module and can be driven by a cleaning driving device to rotate so as to realize the cleaning of the surface to be cleaned through the contact of the cleaning module and the surface to be cleaned; the cleaning module at least comprises a ring-shaped piece and a first power part, wherein the ring-shaped piece is arranged outside the first power part, the cleaning driving device drives the first power part to rotate, and the first power part drives the ring-shaped piece to rotate; and

a cradle portion detachably disposed on the cleaning head housing module; the bracket part is at least connected with the first power part, and when the bracket part is arranged on the cleaning head shell module, at least part of the cleaning driving device slides into the first power part;

the cleaning driving device is provided with a first connecting piece, a second connecting piece is arranged in the first power part, when the support part is installed on the cleaning head shell module, and the first connecting piece and the second connecting piece are in mutual contact, the first connecting piece can move in the direction far away from the second connecting piece, and/or the second connecting piece can move in the direction far away from the first connecting piece, so that after the support part is installed on the cleaning head shell module, the first connecting piece and the second connecting piece can not form transmission connection, and when the first connecting piece is driven to rotate, the first connecting piece can move in the direction close to the second connecting piece, and/or the second connecting piece can move in the direction close to the first connecting piece, so that the first connecting piece and the second connecting piece are in transmission connection.

According to the cleaning base of at least one embodiment of the present disclosure, the cleaning driving device is connected to the first connecting piece through an adapter, wherein the first connecting piece is slidably arranged on the adapter, and the first connecting piece is driven to rotate through the adapter.

According to the cleaning base of at least one embodiment of the present disclosure, an elastic reset portion is disposed between the adaptor and the first connector, and a restoring force provided by the elastic reset portion acts on the first connector in a direction approaching the second connector.

According to the cleaning base of at least one embodiment of this disclosure, the adaptor is formed with an annular groove, and one end of the elastic restoring portion is disposed in the annular groove.

According to the cleaning base of at least one embodiment of this disclosure, one of the adaptor and the first connector includes a guide portion; the other of the adaptor and the first connector is formed with a guide hole so as to guide the relative movement between the first connector and the adaptor by the cooperation of the guide part and the guide hole.

According to the cleaning base of at least one embodiment of the present disclosure, the guide portion is formed in a non-circular shape in cross section, and the guide hole is adapted in shape to the guide portion.

According to the cleaning base of at least one embodiment of the present disclosure, the adaptor includes a guide portion that passes through the first connector and is provided with a stopper screw to prevent the first connector from being detached from the adaptor by the stopper screw.

According to the cleaning base of at least one embodiment of the present disclosure, the first link is formed with a guide hole, and at least a part of the limit screw has a size larger than at least a part of the guide hole, so that the position of the first link in a direction approaching the second link is limited by the limit screw.

According to the cleaning base of at least one embodiment of the present disclosure, the inner diameter of one end of the first connecting piece far away from the second connecting piece is larger than the outer diameter of one end of the adapter piece far away from the second connecting piece, and when the first connecting piece moves in the direction far away from the second connecting piece, one end of the adapter piece close to the cleaning driving device can be at least partially surrounded.

The cleaning base according to at least one embodiment of the present disclosure further includes:

and when the bracket part is arranged on the cleaning head shell module, the speed change device slides to the inner cavity of the first power part and realizes the transmission connection of the speed change device and the first power part.

the mounting bracket, the one end of first power portion rotationally set up in the stake section, the other end of first power portion rotationally set up in the mounting bracket.

According to the cleaning base of at least one embodiment of the present disclosure, the mounting bracket is provided with a first supporting portion, a through hole is formed inside the first supporting portion, and a transmission shaft is rotatably supported by the first supporting portion and located in the through hole, wherein the transmission shaft is in transmission connection with the speed changing device and the cleaning driving device, respectively.

According to the cleaning base of at least one embodiment of the present disclosure, the other end of the first power part is rotatably supported to the first support part by a first bearing.

The cleaning base according to at least one embodiment of the present disclosure, the cleaning module further includes a second power portion, the first power portion being adjacent to a rear side of the cleaning module, the second power portion being adjacent to a front side of the cleaning module, the first power portion transmitting power to the second power portion through the ring member under the driving of the cleaning driving means.

According to the cleaning base of at least one embodiment of the present disclosure, the mounting bracket is provided with a second support part which is close to the front side of the cleaning base with respect to the first support part, wherein one end of the second power part is rotatably provided to the bracket part, and the other end of the second power part is rotatably provided to the second support part through a second bearing.

According to the cleaning base of at least one embodiment of this disclosure, a bearing sleeve is disposed between the second bearing and the inner surface of the second power portion.

According to the cleaning base of at least one embodiment of the present disclosure, when the first connecting piece and the second connecting piece are in transmission connection, the first connecting piece provides a driving force to the second connecting piece, and the first power part is driven to rotate by the driving force provided by the first connecting piece.

According to the cleaning base part of at least one embodiment of the present disclosure, the cleaning driving device drives the first power part to rotate, and a pulling force is applied to the bracket part through the cooperation of the first connecting part and the second connecting part, so that the bracket part is abutted against one side of the cleaning driving device.

According to the cleaning base of at least one embodiment of the present disclosure, the first link is provided with a first connection portion inclined so as to form a force application surface by the first connection portion.

According to the cleaning base of at least one embodiment of the present disclosure, the second link is formed with a second link portion inclined such that the second link is formed with a force-bearing surface which is in contact with when the first link and the second link are mated.

According to another aspect of the present disclosure, there is provided a surface cleaning apparatus comprising the cleaning base described above.

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.

Fig. 1 is a schematic structural view of a cleaning base according to one embodiment of the present disclosure.

Fig. 2 is a schematic view of an installation process of a bracket part according to an embodiment of the present disclosure.

Fig. 3 is a sectional view of an installation process of a bracket part according to one embodiment of the present disclosure.

Fig. 4 is another state diagram of fig. 3.

Fig. 5 is a sectional view of an installation process of a bracket part according to an embodiment of the present disclosure.

Fig. 6 is another state diagram of fig. 5.

Fig. 7 is a schematic structural view of a first power section and a second power section according to one embodiment of the present disclosure.

Fig. 8 is a schematic view of a connection state of a first connection member and a second connection member according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural view of a first connector according to one embodiment of the present disclosure.

Fig. 10 is a schematic structural view of a second connector according to an embodiment of the present disclosure.

FIG. 11 is a force application diagram of a cleaning base according to one embodiment of the present disclosure.

Fig. 12 is a schematic view of a transmission structure of a propeller shaft according to one embodiment of the present disclosure.

Fig. 13 is a schematic structural view of a surface cleaning apparatus according to one embodiment of the present disclosure.

The reference numbers in the figures are specifically:

100 cleaning base

110 cleaning head housing module

120 moving wheel module

130 cleaning driving device

140 cleaning module

141 first power part

142 annular member

143 second power unit

150 bracket part

160 mounting bracket

161 first support part

162 second support part

170 speed changing device

180 first bearing

190 first connecting piece

191 first connecting part

200 second connector

201 second connection part

210 second bearing

220 bearing sleeve

230 adaptor

231 annular groove

232 guide part

240 elastic reset part

250 limit screw

260 drive shaft.

Detailed Description

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

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples 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, the features of the various embodiments/examples may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote 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 purposes of this disclosure, the term "connected" may refer to physically connected, electrically connected, and the like, with or without intervening components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under 8230; \8230;,"' under 8230; \8230; below 8230; under 8230; above, on, above 8230; higher "and" side (e.g., as in "side wall)", etc., to describe the relationship of one component to another (other) component as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "at 8230 \8230;" below "may encompass both an orientation of" above "and" below ". Moreover, the devices 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 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 this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

Fig. 1 is a schematic structural view of a cleaning base 100 according to one embodiment of the present disclosure. Fig. 2 is a schematic view of an installation process of a bracket part according to an embodiment of the present disclosure.

As shown in fig. 1 and 2, the cleaning base 100 of the present disclosure includes: a cleaning head housing module 110, a moving wheel module 120, a cleaning drive 130, a cleaning module 140, and a cradle portion 150.

The cleaning head housing module 110 is formed as at least a part of an outer surface of the cleaning base 100, and the cleaning head housing module 110 is formed with a receiving part; in the present disclosure, the receiving portion is formed at the front of the cleaning head housing module 110.

The moving wheel module 120 is coupled to the cleaning head housing module 110 such that when the cleaning base 100 is in operation, the moving wheel module 120 is in contact with a surface to be cleaned; accordingly, the moving wheel module 120 is located at the rear of the cleaning head housing module 110, and more preferably, the moving wheel module 120 may include two moving wheels, and the two moving wheels are located at both sides of the cleaning head housing module 110, respectively.

The cleaning driving device 130 is disposed on the cleaning head housing module 110, and is used for generating a driving force; in the present disclosure, the cleaning driving device 130 may be selected as a motor, such as a dc motor, a stepping motor, etc., to facilitate control of the cleaning driving device.

The cleaning module 140 is disposed in the cleaning head housing module 110, located in the accommodating portion of the cleaning head housing module 110, and can be driven by the cleaning driving device 130 to rotate, so as to clean the surface to be cleaned by the contact of the cleaning module 140 with the surface to be cleaned.

The cleaning module 140 may be formed in a structure of a roll brush, i.e., including only the first power part 141 and the ring member 142; the ring-shaped members 142 are configured as bristles, and the surface to be cleaned is cleaned by the bristles; the ring member 142 is disposed outside the first power part 141, and the ring member 142 is driven to rotate by the first power part 141.

On the other hand, the cleaning module 140 may also be formed as a crawler-type cleaning part, i.e., the cleaning module 140 may include not only the first power part 141 and the ring member 142, but also the second power part 143; the second power part 143 is closer to the front side of the cleaning module 140 than the first power part 141.

That is, the first power part 141 is close to the rear side of the cleaning module 140, the second power part 143 is close to the front side of the cleaning module 140, and the first power part 141 transmits power to the second power part 143 through the ring member 142 under the driving of the cleaning driving means 130.

In the present disclosure, the cleaning driving device 130 can drive the first power portion 141 to rotate, and specifically, the cleaning driving device 130 may be provided with a driving wheel; the drive shaft 260 is provided with a driven wheel; the driving wheel and the driven wheel are connected through a transmission part; preferably, the driving wheel and the driven wheel can be both formed into synchronous pulleys; the transmission member is formed as a timing belt.

At this time, as shown in fig. 12, the cleaning driving device 130 drives the transmission shaft 260 to rotate, and drives the first power unit 141 to rotate through the transmission shaft 260.

Accordingly, the bracket part 150 is detachably provided to the cleaning head housing module 110; the bracket part 150 is connected to at least the first power part 141, and when the bracket part 150 is mounted to the cleaning head housing module 110, at least a portion of the cleaning driving means 130 slides into the first power part 141.

When the cleaning module 140 includes the first power portion 141, the ring member 142 and the second power portion 143, the bracket portion 150 is connected to the first power portion 141 and the second power portion 143, and the bracket portion 150, the first power portion 141, the ring member 142 and the second power portion 143 form an integrally detachable assembly; in other words, the first power part 141, the ring member 142, and the second power part 143 can be removed together from the time of removing the holder part 150 from the cleaning head housing module 110; when the holder part 150 is mounted to the cleaning head housing module 110, it is possible to mount the first power part 141, the ring member 142, and the second power part 143 to the cleaning head housing module 110 such that the first power part 141, the ring member 142, and the second power part 143 are located in the receiving part of the cleaning head housing module 110.

The first power portion 141 and the second power portion 143 may have the same or different outer diameters. When the outer diameters of the first and

second power parts

141 and 143 are not the same, it is preferable that the diameter of the first power part 141 is larger than that of the second power part 143.

The second power portion 143 is disposed in front of the first power portion 141 with the moving direction of the surface cleaning apparatus for cleaning the surface to be cleaned being the forward direction, but the second power portion 143 may be disposed behind the first power portion 141, and the position of the second power portion 143 can be adjusted by the skilled person according to the technical common knowledge grasped by the skilled person.

Preferably, the first power part 141 is formed as a driving roller, and the second power part 143 is formed as a driven roller, so that the first power part 141 transmits power to the second power part 143 through the ring 142 under the driving of the cleaning driving means 130.

In the present disclosure, one end of each of the first and

second power parts

141 and 143 is rotatably disposed on the bracket part 150, and accordingly, when the bracket part 150 is not mounted on the cleaning head housing module 110, the bracket part 150 can substantially maintain the first and

second power parts

141 and 143 in a substantially parallel state, so as to facilitate correct mounting of the bracket part 150.

On the other hand, the cleaning base 100 may further include a mounting bracket 160, and the other end of the first power part 141 is rotatably provided to the mounting bracket 160; accordingly, the other end of the second power portion 143 is also rotatably provided to the mounting bracket 160, and thus the first and

second power portions

141 and 143 can be rotated with respect to the bracket portion 150 and the mounting bracket 160.

Specifically, the mounting bracket 160 is provided with a first supporting portion 161, a through hole is formed in the first supporting portion 161, and a transmission shaft 260 is rotatably supported by the first supporting portion 161 and located in the through hole, wherein the transmission shaft 260 is in transmission connection with the speed changing device 170. In the present disclosure, the speed changing device 170 may be a gear transmission, such as a planetary gear transmission, so that the speed changing device 170 has a large reduction ratio.

Accordingly, the other end of the first power part 141 is rotatably supported to the first support part 161 by a first bearing 180; since the first bearing 180 does not need to bear a large radial force, it can be selected as a common deep groove ball bearing; however, when the first connecting member 190 can apply an axial tensile force to the second connecting member 200, the first bearing 180 may be selected from angular contact ball bearings and the like capable of bearing a certain axial force.

Structurally, the first bearing 180 is fitted over the first support part 161 such that the outer ring of the first bearing 180 is in close contact with the inner wall surface of the first power part 141.

Fig. 5 is a sectional view of an installation process of a bracket part according to one embodiment of the present disclosure. Fig. 6 is another state diagram of fig. 5.

As shown in fig. 5 and 6, the mounting bracket 160 is provided with a second support portion 162, the second support portion 162 being close to the front side of the cleaning base 100 with respect to the first support portion 161, wherein one end of the second power portion 143 is rotatably provided to the bracket portion 150, and the other end of the second power portion 143 is rotatably provided to the second support portion 162 through a second bearing 210.

Preferably, a bearing sleeve 220 is arranged between the second bearing 210 and the inner surface of the second power portion 143; this facilitates the attachment and detachment of the second power unit 143. In the present disclosure, the second bearing 210 may also be a deep groove ball bearing or an angular contact ball bearing, which are commonly used in the art, and will not be described in detail herein.

More preferably, the bearing housing 220 may be formed as a tapered surface to guide the second power unit through the bearing housing 220 of the tapered surface.

Although, the first and second supporting

portions

161 and 162 are provided to the mounting bracket 160, those skilled in the art will appreciate that the first and second supporting

portions

161 and 162 may be integrally formed with the mounting bracket 160, that is, the first and second supporting

portions

161 and 162 can be formed as a part of the mounting bracket 160.

Fig. 3 is a sectional view of an installation process of a bracket part according to an embodiment of the present disclosure. Fig. 4 is another state diagram of fig. 3.

In an alternative embodiment of the present disclosure, as shown in fig. 3 and 4, the cleaning driving device 130 is provided with a first link 190, the first power part 141 is internally provided with a second link 200, when the bracket part 150 is mounted to the cleaning head housing module 110 and the first link 190 and the second link 200 are in contact with each other, the first link 190 can move in a direction away from the second link 200, and/or the second link 200 can move in a direction away from the first link 190 and enable the bracket part 150 to be mounted to the cleaning head housing module 110, the first link 190 and the second link 200 can not form a transmission connection (as shown in fig. 3), and when the first link 190 is driven to rotate, the first link 190 can move in a direction close to the second link 200, and/or the second link 200 can move in a direction close to the first link 190, so that the first link 190 and the second link 200 are in transmission connection (as shown in fig. 4).

Of course, when the circumferential positions of the first and

second connectors

190 and 200 correspond and the holder portion 150 is mounted to the cleaning head housing module 110, the first and

second connectors

190 and 200 can be directly mounted in a transmission connection state; however, when the circumferential positions of the first and

second connectors

190 and 200 do not correspond, the bracket portion 150 can be easily mounted on the cleaning head housing module 110 by the movement of the first and/or

second connectors

190 and 200 along the axial direction, and although the first and

second connectors

190 and 200 do not form a transmission connection, when the first connector 190 is driven to rotate, the first connector 190 can be rotated to the position corresponding to the second connector 200, and a stable transmission connection is formed at this time.

According to at least one embodiment of the present disclosure, the cleaning driving device 130 is connected to the first connector 190 through an adaptor 230, wherein the first connector 190 is slidably disposed on the adaptor 230 and does not allow the first connector 190 to rotate relative to the adaptor 230; the fact that the first connector 190 is not allowed to rotate relative to the adaptor 230 means that the adaptor 230 can drive the first connector 190 to rotate.

The position and structure of the coupling member 230 and the first coupling member 190 will be described in detail below.

In the present disclosure, an elastic restoring portion 240 is disposed between the adaptor 230 and the first connector 190, and a restoring force provided by the elastic restoring portion 240 acts on the first connector 190 in a direction approaching the second connector 200.

That is, when the holder portion 150 is mounted to the cleaning head housing module 110 and the axial position of the first link 190 is changed, the elastic restoring portion 240 is further pressed, and the elastic potential energy stored in the elastic restoring portion 240 is further increased, and at this time, when the first link 190 is driven to rotate, the first link 190 is pushed toward the second link 200 by the elastic force of the elastic restoring portion 240, and thus the first link 190 and the second link 200 are connected.

As one implementation form, the adaptor 230 is formed with an annular groove 231, and one end of the elastic resetting part 240 is disposed in the annular groove 231; wherein the annular groove 231 is formed at one end of the adaptor 230 connected to the transmission 170.

To achieve the guiding and transmission between the adaptor 230 and the first connector 190, one of the adaptor 230 and the first connector 190 comprises a guiding portion; the other of the adaptor 230 and the first connector 190 is formed with a guide hole to guide the relative movement between the first connector 190 and the adaptor 230 by the cooperation of the guide portion and the guide hole.

At this time, the cross section of the guide portion is formed in a non-circular shape, and the shape of the guide hole is adapted to the shape of the guide portion to realize the transmission connection between the adaptor 230 and the first connector 190.

Specifically, the adaptor 230 includes a guide portion 232, the guide portion 232 passes through the first connector 190 (i.e., the first connector 190 is formed with a guide hole), and the guide portion 232 is provided with a limit screw 250 to prevent the first connector 190 from being detached from the adaptor 230 by the limit screw 250.

In the present disclosure, at least a portion of the limit screw 250 has a size larger than that of at least a portion of the guide hole to limit the position of the first connector 190 in the direction approaching the second connector 200 by the limit screw 250; for example, the stop screw 250 has a diameter that is the same as or slightly smaller than an outer diameter of the first connector 190 at an end thereof near the second connector 200, thereby enabling the position of the first connector 190 to be limited by the stop screw 250.

More preferably, the limit screw 250 is further configured to limit the position of the adaptor 230, specifically, a central hole is formed in the middle of the adaptor 230, the output shaft of the speed changing device 170 passes through the central hole of the adaptor 230, and the limit screw 250 is fixed to the output shaft of the speed changing device, so as to limit the axial position of the adaptor 230.

Preferably, the central hole is a non-circular hole, and the cross section of the output shaft is adapted to the interface of the central hole, so that the output shaft can drive the adaptor 230 to rotate.

Of course, the connection relationship between the output shaft and the connection member 230 is not limited thereto, and a key connection or a pin connection, etc. is also possible.

In the present disclosure, an inner diameter of an end of the first connecting member 190 close to the cleaning driving device 130 is larger than an outer diameter of an end of the adaptor 230 close to the cleaning driving device 130, and the first connecting member 190 can at least partially surround an end of the adaptor 230 close to the cleaning driving device 130 when moving in a direction away from the second connecting member 200.

The cleaning driving device 130 includes a speed changing device 170, when the holder portion 150 is mounted to the cleaning head housing module 110, the speed changing device 170 slides into the inner cavity of the first power portion 141, and the speed changing device 170 and the first power portion 141 are in transmission connection, and at this time, the transmission shaft 260 is in transmission connection with the speed changing device 170, and thus transmits power to the speed changing device 170.

Fig. 7 is a schematic structural view of a first power section and a second power section according to one embodiment of the present disclosure. Fig. 8 is a schematic view illustrating a connection state of a first connector and a second connector according to an embodiment of the present disclosure. Fig. 9 is a schematic structural view of a first connector according to one embodiment of the present disclosure. Fig. 10 is a schematic structural view of a second connector according to an embodiment of the present disclosure.

As shown in fig. 7 to 10, when the first connecting element 190 and the second connecting element 200 are in transmission connection, the first connecting element 190 provides a driving force to the second connecting element 200, and the first power portion 141 is driven to rotate by the driving force provided by the first connecting element 190.

More preferably, the cleaning driving device 130 drives the first power part 141 to rotate, and a pulling force is applied to the frame part 150 through the cooperation of the first connecting element 190 and the second connecting element 200, so that the frame part 150 abuts against the cleaning driving device 130 side.

Therefore, on one hand, when the first connecting piece 190 and the second connecting piece 200 are not in transmission connection, the transmission connection can be more easily realized; on the other hand, the technical problem that the cleaning module 140 shakes left and right when in use is also solved.

As shown in fig. 9, the first connector 190 is provided with a first connection portion 191 inclined, and the first connection portion 191 extends substantially in the axial direction of the first connector 190, for example, formed in a spiral shape. So that a force application surface is formed by the first connection portion 191; in the present disclosure, the first connection part 191 may be formed in the form of a key, i.e., such that an inclined connection key is formed on the circumferential surface of the first connector 190.

More specifically, the first connecting portion 191 includes a first end portion and a second end portion, wherein the first end portion is far from the cleaning driving device 130, the second end portion is close to the cleaning driving device 130, and the first end portion is more forward than the second end portion in a direction in which the first connecting member 190 is rotationally driven by the cleaning driving device 130.

In the present disclosure, the first connection portion 191 may be formed in 1, but the first connection portion 191 is provided in plurality, for example, 6 as shown in fig. 8, from the viewpoint of the driving stability.

At this time, the plurality of first connection portions 191 are uniformly distributed along the circumferential direction of the first connection piece 190, and a space of a preset distance is formed between two adjacent first connection portions 191; more preferably, a circumferential distance between two circumferentially adjacent first end portions is greater than a circumferential distance between second end portions, so that the first and

second connectors

190 and 200 can be more easily coupled to each other.

In the present disclosure, the second connector 200 is detachably disposed on the first power portion 141, but the second connector 200 and the first power portion 141 may be disposed in a non-detachable structure, that is, the second connector 200 and the first power portion 141 may be integrally formed.

When the second connector 200 is disposed in the first power portion 141, the second connector 200 is located inside the first power portion 141, and the second connector 200 is in transmission connection with the first power portion 141, for example, the second connector 200 is in interference fit connection with the first power portion 141, or in spline connection, so as to transmit the driving force to the first power portion 141 and form the first power portion 141 into a driving roller when the second connector 200 is driven to rotate by the first connector 190.

As shown in fig. 10 and 11, the second link 200 is formed with the inclined second connection part 201 such that the second link 200 is formed with a force-receiving surface, and when the first link 190 and the second link 200 are mated, the force-applying surface is in contact with the force-receiving surface, thereby enabling the first connection part 191 to apply a positive pressure F to the second connection part 201, the positive pressure F forming an angle with the direction of rotation, and thus, the positive pressure F can be decomposed into a first component force F1 in the direction of rotation and a second component force F2 in the axial direction, wherein the second component force F2 forms a pulling force of the holder part 150 approaching to the cleaning driving means 130 side due to the inclined directions of the first connection part 191 and the second connection part 201.

The second connection portion 201 may be formed in the form of a connection groove, whereby the first connection portion 191 is located inside the second connection portion 201 when the first and

second connection members

190 and 200 are mated; in this case, one side wall of the coupling groove is formed as the force-receiving surface.

Preferably, the second connecting portion 201 includes a first end portion close to the cleaning driving means 130 and a second end portion opposite to the first end portion, and the first end portion is located rearward of the second end portion in a direction in which the second connecting member 200 is driven to rotate by the first connecting member 190, thereby enabling the first connecting member 190 to be inserted into the second connecting member 200.

In the present disclosure, when the first link 190 and the second link 200 are driven by the contact of the force application surface and the force application surface, and the force application surface are accurately matched, the first link 190 and the second link 200 need to rotate, but considering that the first link 190 and the cleaning driving device 130 rotate synchronously, when the bracket portion is installed, it is difficult to rotate the first link 190, the second link 200 rotates synchronously with the first power portion 141, and considering the shape of the ring member 142, it is also difficult to rotate, and at this time, by the arrangement of the first link 190 and the second link 200 which move axially, this problem is effectively solved.

Specifically, when the surface cleaning apparatus is started, the cleaning driving device 130 drives the first connecting member 190 to rotate by a small angle, and the first connecting member 190 is pushed into the second connecting member 200 under the driving of the elastic resetting part, so that the first connecting member 190 and the second connecting member 200 are in transmission connection, that is, the force application surface is in contact with the force bearing surface.

Of course, the cleaning base of the present disclosure may further include a fluid distribution module to provide cleaning liquid to the cleaning module through the fluid distribution module, and a dirty suction module to suck in used cleaning liquid and other components through the dirty suction module, which will not be further expanded and described in detail herein.

According to another aspect of the present disclosure, there is provided a surface cleaning apparatus comprising the cleaning base 100 described above; and the surface cleaning apparatus may further include a cleaning liquid storage portion for supplying the cleaning liquid to the cleaning base portion, and the like, which will not be described in detail herein.

Further, the surface cleaning apparatus includes a vacuum source, the cleaning base including a vacuum nozzle in communication with the vacuum source; the first power part 141 is adjacent to the vacuum nozzle with respect to the second power part 143 to suck the used cleaning liquid through the vacuum nozzle.

In the description of the present specification, reference to the description of "one embodiment/mode", "some embodiments/modes", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode 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/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

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

It will be understood by those skilled in the art that the foregoing 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 may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

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

a holder portion detachably disposed to the cleaning head housing module; the bracket part is connected with at least the first power part, and when the bracket part is arranged on the cleaning head shell module, at least part of the cleaning driving device slides into the first power part;

when the bracket part is arranged on the cleaning head shell module and the first connecting piece and the second connecting piece are contacted with each other, the first connecting piece can move along the direction far away from the second connecting piece, and/or the second connecting piece can move along the direction far away from the first connecting piece, so that after the bracket part is arranged on the cleaning head shell module, the first connecting piece and the second connecting piece can not form transmission connection;

when the first connecting piece is driven to rotate, the first connecting piece can move in the direction close to the second connecting piece, and/or the second connecting piece can move in the direction close to the first connecting piece, so that the first connecting piece and the second connecting piece are in transmission connection;

the cleaning driving device is connected to the first connecting piece through an adapter piece, wherein the first connecting piece is slidably arranged on the adapter piece and drives the first connecting piece to rotate through the adapter piece; an elastic reset part is arranged between the adapter piece and the first connecting piece, and the restoring force provided by the elastic reset part acts on the first connecting piece along the direction close to the second connecting piece; when the first connecting piece is in transmission connection with the second connecting piece, the first connecting piece provides driving force for the second connecting piece, and the first power part is driven to rotate through the driving force provided by the first connecting piece.

2. The cleaning base of claim 1, wherein the adaptor is formed with an annular recess, one end of the resilient return portion being disposed within the annular recess.

3. The cleaning base of claim 1, wherein one of the adapter and first connector comprises a guide; the other of the adaptor and the first connector is formed with a guide hole so as to guide the relative movement between the first connector and the adaptor by the cooperation of the guide part and the guide hole.

4. The cleaning base of claim 3, wherein the guide portion is formed in a non-circular cross-section, and the guide hole is shaped to conform to the shape of the guide portion.

5. The cleaning base of claim 2, wherein the adapter comprises a guide portion that passes through the first connector and is provided with a stop screw to prevent disengagement of the first connector from the adapter by the stop screw.

6. The cleaning base of claim 5, wherein the first attachment member is formed with a guide hole, and the limit screw is at least partially larger in size than at least a portion of the guide hole to limit a position of the first attachment member in a direction approaching the second attachment member by the limit screw.

7. The cleaning base of claim 1, wherein an end of the first connector remote from the second connector has an inner diameter greater than an outer diameter of an end of the adaptor remote from the second connector and such that the first connector is able to at least partially encircle an end of the adaptor proximate the cleaning drive means when moved in a direction away from the second connector.

8. The cleaning base of claim 7, further comprising:

9. The cleaning base of claim 8, further comprising:

10. The cleaning base of claim 9, wherein the mounting bracket is provided with a first support portion having a through hole formed therein, and a transmission shaft is rotatably supported by the first support portion and positioned in the through hole, wherein the transmission shaft is in transmission connection with the speed changing device and the cleaning driving device, respectively.

11. The cleaning base of claim 10, wherein the other end of the first power section is rotatably supported to the first support section by a first bearing.

12. The cleaning base of claim 9, wherein the cleaning module further comprises a second motive portion, the first motive portion being proximate the rear side of the cleaning module, the second motive portion being proximate the front side of the cleaning module, the first motive portion transmitting motive power through the ring to the second motive portion under drive of the cleaning drive.

13. The cleaning base of claim 12, wherein the mounting bracket is provided with a second support portion adjacent the front side of the cleaning base relative to the first support portion, wherein one end of the second motive portion is rotatably provided to the bracket portion and the other end of the second motive portion is rotatably provided to the second support portion via a second bearing.

14. The cleaning base of claim 13, wherein a bearing sleeve is disposed between the second bearing and the inner surface of the second motive portion.

15. The cleaning base of claim 1, wherein the cleaning drive means drives the first power section to rotate and applies a pulling force to the leg portion by engagement of the first and second links such that the leg portion abuts the cleaning drive means side.

16. The cleaning base of claim 1, wherein the first link is provided with a first connection portion that is inclined so that a force application surface is formed by the first connection portion.

17. The cleaning base of claim 16, wherein the second link is formed with a slanted second link such that the second link is formed with a force-bearing surface that contacts the force-bearing surface when the first and second links are mated.

18. A surface cleaning apparatus comprising a cleaning base as claimed in any one of claims 1 to 17.