CN216439117U - Surface cleaning device - Google Patents

Abstract

The application discloses a surface cleaning device, which comprises a machine body with a roller brush cavity and a roller brush assembly arranged in the roller brush cavity in a pick-and-place manner; the organism includes drive arrangement and the driving medium of being connected with drive arrangement, the roller brush subassembly includes the cleaning roller and rotates the latch portion of being connected with the first end of cleaning roller, latch portion is used for being fixed in the roller brush intracavity with the cleaning roller, the second end cooperation of driving medium and cleaning roller, so that cleaning roller corotation clean ground, the organism still includes the damping component with driving medium matched with, the reversal resistance that damping component provided to the driving medium is greater than the rotation resistance of the relative latch portion of cleaning roller, so that the relative latch portion of cleaning roller reverses when cleaning roller and driving medium butt assembly. This kind of setting mode is convenient for realize the installation that targets in place of scrub roller, and need not to restrict turning to of driving medium with the help of the instrument, can install the scrub roller in the driving medium through one-hand operation, greatly reduced the installation degree of difficulty of scrub roller, improved the convenience of roller brush main part dismouting.

Description

Surface cleaning device

Technical Field

The application relates to the technical field of cleaning equipment, in particular to a surface cleaning device.

Background

Surface cleaning devices, such as floor sweeping robots, floor washers, steam mops or vacuum cleaners with a mopping function, can be used to clean a variety of surfaces (e.g., wooden, tile, or carpeted floors). The prior surface cleaning device generally comprises a machine body and a cleaning assembly arranged at the end part of the machine body. The cleaning assembly can comprise a cleaning component such as a cleaning roller or a cleaning brush with a cleaning surface, a liquid supply structure such as a water tank and a drive pump can be arranged on the machine body, and cleaning liquid is supplied to the cleaning component through the liquid supply structure, so that the cleaning surface can be in contact with the surface to be cleaned, and the surface to be cleaned is cleaned.

Taking a cleaning roller as an example, after the cleaning operation of the cleaning roller is completed, a large amount of dirt is often attached to the surface of the cleaning roller, so that the subsequent cleaning effect of the surface cleaning device is affected, the conventional surface cleaning device with a self-cleaning function can continuously clean the cleaning assembly in the working process of the cleaning roller, but the cleaning effect is limited, and sometimes the dirt with larger adhesive force cannot be completely removed, so that the roller brush assembly needs to be detached from the machine body for cleaning to ensure the cleaning degree of the roller brush in the next use, and the roller brush which is damaged needs to be detached for replacement, which also puts high requirements on the detachment and installation of the roller brush, however, the installation modes of the roller brush of the conventional cleaning device are different and have many defects. Among some cleaning device, because the roller brush mounting structure is unreasonable, the dismouting degree of difficulty is big, some still need with the help of instrument dismouting roller brush, waste time and energy, there is not enough and rock and then influence the ground cleaning performance in the course of the work in the fastness after the roller brush installation, and install the cleaning roller to the mode of predetermineeing the mounted position through drive arrangement control driving medium antiport among the current, it is higher to drive arrangement's rotational speed requirement, and it is great to the inertial dependence of cleaning roller, there are a great deal of uncertainties in the installation, it targets in place to be difficult to guarantee that the cleaning roller accurately installs.

It can thus be seen that the prior art is subject to further improvement and advancement.

SUMMERY OF THE UTILITY MODEL

The present application provides a surface cleaning apparatus to address at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a surface cleaning device comprises a machine body with a roller brush cavity and a roller brush component which is arranged in the roller brush cavity in a pick-and-place way; the machine body comprises a driving device and a transmission part connected with the driving device, the roller brush assembly comprises a cleaning roller and a latch part rotationally connected with a first end of the cleaning roller, the latch part is used for fixing the cleaning roller in a roller brush cavity, the transmission part is matched with a second end of the cleaning roller so that the cleaning roller positively rotates to clean the ground, the machine body further comprises a damping component matched with the transmission part, and reverse rotation resistance provided by the damping component to the transmission part is larger than rotation resistance of the cleaning roller relative to the latch part so that the cleaning roller reversely rotates relative to the latch part when the cleaning roller is abutted to the transmission part.

The surface cleaning apparatus of the present application also has the following additional features:

the damping member limits the rotation direction of the transmission member to a forward rotation direction.

The second end of cleaning roller is equipped with well kenozooecium, the pivot of driving medium can insert well kenozooecium, and the surface of pivot be provided with can with well kenozooecium inner wall complex fixed muscle.

The rotating shaft is in spiral fit with the hollow part.

The second end of cleaning roller is provided with the arch, the driving medium be equipped with can with protruding spiral complex recess.

The lateral wall in roller brush chamber is equipped with guide way and spacing portion, the roller brush subassembly still including set up in the locking seat of cleaning roller first end, the latch portion is located locking seat, just locking seat is followed the guide way inserts, so that the latch portion with spacing portion cooperation will the cleaning roller install in the roller brush intracavity.

The locking seat comprises a fixed end and a free end, the fixed end is movably connected with the cleaning roller, and the free end is exposed on the side wall of the roller brush cavity in the radial direction of the cleaning roller.

The guide groove is provided with an opening for inserting the locking seat, and the opening is arranged obliquely upwards or vertically upwards.

The damping member is a reduction drive.

The damping member is a ratchet mechanism.

Due to the adoption of the technical scheme, the technical effects obtained by the application are as follows:

1. according to the surface cleaning device, in the installation process of the cleaning roller, a user holds a component (such as a latch part or a locking seat) connected with the first end of the cleaning roller to butt the second end of the cleaning roller with the transmission part, and because the resistance generated when the transmission part rotates reversely is larger than that generated when the cleaning roller rotates relative to the latch part, the cleaning roller can be installed in a matched mode with the transmission part after being reversely rotated for a certain angle relative to the latch part. When concrete implementation, can set up suitable cooperation structure on cleaning roller and/or driving medium, can reverse through this cooperation structure when making the cleaning roller installation, and the resistance that damping member applyed on the driving medium can make the driving medium can't reverse or along reversing with the rotational speed that is less than the cleaning roller, thereby utilize the difference of cleaning roller and driving medium rotational speed to realize the installation that targets in place of cleaning roller, and need not to restrict turning to of driving medium with the help of the instrument, can install the cleaning roller in the driving medium through one-hand operation, greatly reduced the installation degree of difficulty of cleaning roller, the convenience of roller brush subassembly dismouting has been improved, user experience has been pleased.

2. As a preferred embodiment of the application, the damping component limits the rotation direction of the transmission member to the positive rotation direction, in other words, in the process of butt-joint installation of the cleaning roller and the transmission member, the cleaning roller rotates reversely, the transmission member cannot rotate reversely along with the cleaning roller and keeps in a static state, a user can conveniently judge whether the cleaning roller is installed in place or not according to the rotation state of the cleaning roller, the visibility of the cleaning roller in place can be improved, the transmission member cannot obstruct installation of the cleaning roller, and rapid assembly of the cleaning roller and the transmission member is further promoted.

3. As an optimal implementation mode of this application, be provided with through the pivot surface at the driving medium can with the well kenozooecium inner wall complex fixed muscle of scrub roller, help promoting scrub roller and driving medium complex fastness, guarantee the course of the work, the synchronism of driving medium and scrub roller corotation, and then guaranteed to have good clean effect on ground.

4. As a preferred embodiment of this application, through making pivot and well kenozooecium spiral cooperation, can be in the installation of cleaning roller and driving medium, the driving medium keeps realizing under the fixed state the cleaning roller for the driving medium reversal direction under the resistance effect of damping component, and spiral cooperation is reliable and stable, and in the course of the work, the driving medium drives the corotation of cleaning roller and can not cause the pine of cleaning roller to take off, makes cleaning roller and driving medium remain the lock state throughout.

5. As a preferred embodiment of the present application, switching between a state in which the cleaning roller is fixed to the roller brush chamber and a state in which the cleaning roller is removable from the roller brush chamber is achieved by engagement or disengagement between the stopper portion and the latch portion. This kind of mode of setting up makes the cleaning roller can dismantle for the organism, has simplified the operation process that the user dismantled the cleaning roller to make the user can carry out more careful washing to it when the cleaning roller is taken off, do benefit to the maintenance of cleaning roller clean degree, and then to a great extent has avoided the existence of adnexed a large amount of dirt and bacterium on the cleaning roller, make the follow-up clean effect of surface cleaning device can maintain a higher level. In addition, when the user has the demand of changing the cleaning roller, this kind of cleaning roller detachable mode of setting has greatly saved user's operating time, does benefit to the improvement that the user used the experience.

In addition, the setting of guide way can be guided the roller brush chamber when locking seat inserts or breaks away from it, avoids locking the seat condition that assembly error appears to a certain extent for the assembly and the dismantlement process of cleaning roller are more smooth-going, thereby when promoting locking seat assembly efficiency and the degree of accuracy, reduce because of assembly error the existence and the interference that other spare parts probably caused to the roller brush chamber. In addition, the setting of guide way can also be through the cooperation with the locking seat, and spacing to the locking seat, because the guide way sets up in the lateral wall in roller brush chamber, the locking seat is located the tip of cleaning roller, therefore the guide way can be well spacing to the axial of cleaning roller, prevents to the at utmost that the cleaning roller from taking place axial displacement in the course of the work.

6. As a preferred embodiment of the application, the locking seat comprises a fixed end and a free end, the fixed end is movably connected with the cleaning roller, so that the locking seat and the cleaning roller can move relatively, when the locking seat is fixed on the side wall of the roller brush cavity, the cleaning roller can rotate in the roller brush cavity to ensure that the cleaning roller stably exerts a rotating cleaning effect, and the free end is exposed on the side wall of the roller brush cavity in the radial direction of the cleaning roller; on the other hand, the part of the free end exposed on the side wall of the roller brush cavity can be conveniently held by a user, so that the cleaning roller is favorably and smoothly assembled and disassembled, and the user experience is improved.

7. As a preferred embodiment of the present application, the guide groove has an opening for inserting the locking seat, and the opening is vertically arranged upward, so that the free end of the locking seat is exposed upward at the view angle of the user facing the surface cleaning device, especially at the view angle of the user bending down to disassemble and assemble the roller brush assembly, so that the user can conveniently and directly pull the roller brush assembly upward to take the roller brush assembly out of the roller brush cavity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a surface cleaning apparatus according to a first embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a machine body according to a first embodiment of the present application;

FIG. 3 is a schematic view of a cleaning roller mounted in a brush chamber according to a first embodiment of the present disclosure;

FIG. 4 is a schematic view of a roller brush assembly of the present application assembled in a roller brush chamber according to a first embodiment of the present application;

FIG. 5 is a first schematic structural view of a housing after a roller brush assembly is removed from a roller brush cavity according to a first embodiment of the present disclosure;

FIG. 6 is an enlarged view of a portion of the structure of FIG. 5 at A;

FIG. 7 is a second schematic structural view of a housing after a roller brush assembly is removed from a roller brush cavity according to a first embodiment of the present disclosure;

FIG. 8 is a first schematic structural view of a roller brush assembly according to a first embodiment of the present disclosure;

FIG. 9 is a second schematic structural view of a roller brush assembly according to the first embodiment of the present disclosure;

fig. 10 is a schematic structural view of a latch and a locking seat according to a first embodiment of the present application;

FIG. 11 is a first schematic structural view of a housing after a roller brush assembly is removed from a roller brush cavity according to a second embodiment of the present application;

FIG. 12 is an enlarged view of a portion of the structure of FIG. 11 at B;

FIG. 13 is a schematic structural view of a roller brush assembly according to a second embodiment of the present application;

FIG. 14 is a schematic structural view of a body of a third embodiment of the present application after a roller brush assembly has been removed from a roller brush cavity;

FIG. 15 is a schematic view of a damping member engaged with a transmission member according to a fourth embodiment of the present application;

FIG. 16 is a schematic view of a damping member engaged with a transmission according to a fifth embodiment of the present application;

FIG. 17 is a first schematic view of a damping member engaged with a transmission member according to a sixth embodiment of the present invention;

fig. 18 is a second schematic structural view of a damping member and a transmission member according to a sixth embodiment of the present application.

Reference numerals:

100 machine body, 110 driving device, 120 transmission piece, 121 fixing rib, 122 spiral rib, 123 clamping rib, 124 rotating shaft, 130 cleaning roller, 131 hollow part, 132 spiral groove, 133 clamping groove, 140 latching part, 141 elastic bulge, 150 damping component, 151 worm wheel, 152 worm, 153 ratchet wheel, 154 fixing ring, 155 roller retainer, 156 roller, 157 gear, 158 driving chain, 160 roller brush cover, 170 guide groove, 180 limiting part, 190 locking seat, 191 fixing end, 192 free end, 193 hand clamping groove.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present application.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

There are many types of surface cleaning devices known in the art, such as floor sweeping robots, floor washers, steam mops, vacuum cleaners, etc. and for ease of illustration, the following description will be made with reference to a floor washer as an example. It will be appreciated that the solution provided by the present application is not limited to floor scrubbing machines, but can equally be applied to other surface cleaning devices such as floor sweeping robots, steam mops or vacuum cleaners. Furthermore, floor washers can be classified into single-roller type floor washers, double-roller type floor washers, and even multi-roller type floor washers, etc., depending on the number of cleaning rollers at the bottom of the floor washer.

In particular, a floor scrubber may generally include a cleaning assembly for performing a cleaning operation on a surface to be cleaned, and a push bar assembly coupled to the cleaning assembly and configured to be held by a user. Wherein, the push rod component and the cleaning component can be fixedly connected or rotatably connected. The cleaning assembly can comprise a cleaning roller directly contacted with the surface to be cleaned, a driving device for driving the cleaning roller to rotate, a liquid supply system for supplying cleaning liquid to the cleaning roller or the surface to be cleaned, a recovery system for recovering dirt on the surface to be cleaned or the surface of the cleaning roller and the like; the pushrod assembly may include a fresh water tank and a waste water tank connected to the liquid supply system and the recovery system, respectively, and a control system and a power source for powering the cleaning assembly, etc.

Taking a single-roller type floor cleaning machine as an example, specifically, referring to fig. 1-18, an embodiment of the present application provides a surface cleaning apparatus, which may include a body 100 having a roller brush cavity and a roller brush assembly disposed in the roller brush cavity in a accessible manner; the machine body 100 comprises a driving device 110 and a transmission member 120 connected with the driving device 110, the roller brush assembly comprises a cleaning roller 130 and a latch part 140 rotatably connected with a first end of the cleaning roller 130, the latch part 140 is used for fixing the cleaning roller 130 in a roller brush cavity, the transmission member 120 is matched with a second end of the cleaning roller 130 so that the cleaning roller 130 rotates forwards to clean the ground, the machine body 100 further comprises a damping member 150 matched with the transmission member 120, and the damping member 150 provides reverse rotation resistance to the transmission member 120 which is larger than the rotation resistance of the cleaning roller 130 relative to the latch part 140 so that the cleaning roller 130 rotates backwards relative to the latch part 140 when the cleaning roller 130 is assembled with the transmission member 120 in an abutting mode. For convenience of understanding, as shown in fig. 4, the normal rotation may be set to the S1 direction, and the reverse rotation may be set to the S2 direction.

In the surface cleaning apparatus provided by the present application, as shown in fig. 3 and 4, during the installation of the cleaning roller 130, a user holds a member (e.g. the latch 140 or the locking seat 190) connected to a first end of the cleaning roller 130 to first butt the second end of the cleaning roller 130 with the transmission member 120, and since the resistance generated when the transmission member 120 rotates reversely is greater than the resistance generated when the cleaning roller 130 rotates relative to the latch 140, the cleaning roller 130 can rotate reversely by a certain angle relative to the latch 140 to complete the fitting installation with the transmission member 120, in a specific implementation, a suitable fitting structure may be provided on the cleaning roller 130 and/or the transmission member 120, so that the cleaning roller 130 can rotate reversely when abutting with the transmission member 120 by the fitting structure, and the resistance exerted on the transmission member 120 by the damping member 150 may make the transmission member 120 unable to rotate reversely or rotate at a rotation speed less than that of the cleaning roller 130, therefore, the cleaning roller 130 is installed in place by utilizing the rotating speed difference between the cleaning roller 130 and the transmission part 120, the rotation direction of the transmission part 120 is not limited by means of tools, the cleaning roller 130 can be installed on the transmission part 120 through one-hand operation, the installation difficulty of the cleaning roller 130 is greatly reduced, and the convenience in assembling and disassembling the roller brush assembly is improved.

In addition, compare in the current mounting means that will realize the scrub roller through drive arrangement control driving medium counter rotation, the installation of this application scrub roller 130 does not rely on drive arrangement 110's rotation and scrub roller 130's inertia, and the installation is simple, convenient, is favorable to guaranteeing that scrub roller 130 is installed in place by accurate.

It should be noted that, in the present application, there is no limitation on the specific structure of the latching portion 140 and the matching manner of the latching portion 140 and the roller brush cavity, and the latching portion 140 may be a snap fit, an insertion fit, a limit fit, a magnetic attraction fit, etc., and it is only necessary to realize the matching of the latching portion 140 and the roller brush cavity to fix the cleaning roller 130 in the roller brush cavity.

Further, as shown in fig. 2, the top of the roller brush chamber may be open, and the surface cleaning apparatus may further include a roller brush cover 160 covering the roller brush chamber, and the roller brush cover 160 may be disposed to shield the cleaning roller 130 during the operation of the surface cleaning apparatus, so that the uniformity of the appearance of the entire product may be maintained. In specific implementation, the roller brush cover 160 and the machine body 100 can be detachably connected through clamping, screwing, inserting and the like, so that the roller brush cover 160 can be conveniently detached to open the roller brush cavity for dismounting the cleaning roller 130.

As a preferred embodiment of the present invention, the damping member 150 may limit the rotation direction of the transmission member 120 to the normal rotation direction.

In the present application, the damping member 150 limits the rotation direction of the transmission member 120 to the forward rotation direction, in other words, in the process of butt-joint installation of the cleaning roller 130 and the transmission member 120, the cleaning roller 130 rotates reversely, the transmission member 120 cannot rotate together with the cleaning roller 130 to maintain a static state, a user can conveniently judge whether the cleaning roller 130 is installed in place or not according to the rotation state of the cleaning roller 130, when the cleaning roller 130 is not installed in place on the transmission member 120, the rotation state can be maintained, when the cleaning roller 130 stops rotating, an operator obtains the technical instruction that the cleaning roller 130 is installed in place, compared with a mode that the cleaning roller 130 and the transmission member 120 rotate simultaneously, the installation condition of the cleaning roller 130 can be conveniently perceived by the user, the transmission member 120 cannot obstruct installation of the cleaning roller 130, and rapid assembly of the cleaning roller 130 and the transmission member 120 is further facilitated.

In a preferred embodiment, the resistance provided to the transmission member 120 can be increased by selecting a damping member 150 with a large damping ratio so that the resistance to reverse rotation of the transmission member 120 is greater than the resistance to rotation of the cleaning roller 130 relative to the latch 140.

In another preferred embodiment, the resistance of the cleaning roller 130 to rotation relative to the latch 140 can be reduced by lubrication, roughness reduction, etc., so as to reduce the force applied to the roller brush assembly by the installer during the installation operation, which is more time-saving and labor-saving.

Regarding the abutting assembly of the cleaning roller 130 and the transmission member 120, in a preferred embodiment, as shown in fig. 5, 6 and 8, a hollow portion 131 may be provided at the second end of the cleaning roller 130, the rotating shaft 124 of the transmission member 120 may be inserted into the hollow portion 131, and the outer surface of the rotating shaft 124 is provided with a fixing rib 121 capable of being engaged with the inner wall of the hollow portion 131.

In specific implementation, a through hole or a blind hole may be formed at the second end of the cleaning roller 130 along the axial direction of the cleaning roller 130 to form a hollow portion 131 which is in plug-in fit with the rotating shaft 124 of the transmission member 120, and the hollow portion 131 and the rotating shaft 124 of the transmission member 120 may be butted to realize quick plug-in fit during installation.

This application is provided with through the pivot 124 surface at driving medium 120 can with the well kenozooecium 131 inner wall complex fixed muscle 121 of scrub roller 130 to the butt limiting displacement through fixed muscle 121 helps promoting scrub roller 130 and driving medium 120 complex fastness, guarantees in the course of the work, the synchronism of driving medium 120 and scrub roller 130 corotation, and then has guaranteed to have good clean effect on ground.

In this embodiment, in order to facilitate the assembly of the cleaning roller 130 with the transmission member 120 during the rotation process, the rotating shaft 124 and the hollow portion 131 may be spirally engaged.

Through making pivot 124 and well kenozooecium 131 spiral cooperation, can be in the installation of cleaning roller 130 and driving medium 120, driving medium 120 keeps realizing that cleaning roller 130 reverses for driving medium 120 under the fixed state through the resistance effect of damping member 150, and the spiral cooperation is reliable and stable, and in the course of the work, driving medium 120 drives cleaning roller 130 corotation and can not cause the pine of cleaning roller 130 to take off, makes cleaning roller 130 and driving medium 120 remain the lock state all the time.

Regarding the way of the screw fit between the rotating shaft 124 and the hollow portion, it includes but is not limited to the following embodiments:

example 1

As shown in fig. 5, 6 and 8, the fixing rib 121 provided on the outer surface of the rotating shaft 124 for engaging with the inner wall of the hollow portion 131 may be a clamping rib 123 having an inclined guide surface, the inner wall of the hollow portion 131 may be provided with a clamping groove 133 adapted to the clamping rib 123, the arrangement of the clamping rib 123 and the clamping groove 133 forms an engagement structure for realizing the reverse rotation of the cleaning roller 130 when the cleaning roller 130 is in abutting engagement with the transmission member 120, and the clamping rib 123 engages with the clamping groove 133 through the inclined guide surface to realize the reverse rotation of the cleaning roller 130, and simultaneously realizes the axial movement of the cleaning roller 130 to complete the insertion with the transmission member 120. Of course, as an alternative embodiment, the cleaning roller can be reversely mounted by arranging the clamping rib on the inner wall of the hollow part and arranging the clamping groove on the outer surface of the rotating shaft.

Example 2

As shown in fig. 11, 12 and 13, the fixing rib 121 disposed on the outer surface of the rotating shaft 124 and engaged with the inner wall of the hollow portion 131 may be a spiral rib 122 spirally disposed around the circumference of the rotating shaft 124, the inner wall of the hollow portion 131 may be provided with a spiral groove 132 engaged with the spiral rib 122, the arrangement of the spiral rib 122 and the spiral groove 132 forms an engagement structure for realizing reverse rotation of the cleaning roller 130 when the cleaning roller 130 is engaged with the transmission member 120, and the cleaning roller 130 can realize both reverse rotation and insertion of the cleaning roller 130 into the transmission member 120 by axial component force generated when the spiral rib 122 and the spiral groove 132 are engaged. Of course, as an alternative embodiment, the cleaning roller may be reversely mounted by providing a spiral rib on the inner wall of the hollow portion and a spiral groove on the outer surface of the rotating shaft.

With regard to the abutting fitting of the cleaning roller 130 to the transmission member 120, in an alternative embodiment, although this example is not shown, it is also possible to provide the second end of the cleaning roller 130 with a projection and the transmission member 120 with a groove that can be screwed into the projection. During specific implementation, a clamping rib can be arranged on one of the outer surface of the protrusion and the inner surface of the groove, a clamping groove matched with the clamping rib is arranged on the other one of the outer surface of the protrusion and the inner surface of the groove, and in the process of matching of the protrusion and the groove in a plug-in mounting mode, the rotation and the axial movement of the cleaning roller 130 are achieved through matching of the clamping rib and the clamping groove. Of course, one of the outer surface of the protrusion and the inner surface of the groove may be provided with a spiral rib, and the other one may be provided with a spiral groove engaged with the spiral rib, and during the process of engaging the protrusion and the groove, the rotation and the axial movement of the cleaning roller 130 may be realized by the engagement of the spiral rib and the spiral groove.

As a preferred embodiment of the present invention, referring to fig. 4, 7 and 9, a guide groove 170 and a stopper 180 may be formed on a sidewall of the roller brush chamber, the roller brush assembly further includes a locking seat 190 disposed at a first end of the cleaning roller 130, the latching part 140 is disposed on the locking seat 190, and the locking seat 190 is inserted along the guide groove 170 so that the latching part 140 cooperates with the stopper 180 to mount the cleaning roller 130 in the roller brush chamber.

The present application is not limited to a specific structure of the guide groove 170, and there are various structures related to the guide groove 170, and the shape of the guide groove 170 may be adapted to the outer contour of the locking seat 190, for example, when the outer contour of the locking seat 190 is in a drop shape, the guide groove 170 may be a U-shaped groove; when the outer contour of the locking seat 190 is rectangular, the guide groove 170 may be a strip-shaped groove; when the outer contour of the locking seat 190 is an inverted T-shape, the guide groove 170 may be a T-shape, and the like, and the shapes of the outer contour of the guide groove 170 and the locking seat 190 are not limited herein. Furthermore, the length of the guiding groove 170 in this embodiment may be the same as the length of the locking seat 190, or may be slightly greater or smaller than the length of the locking seat 190.

In the present application, the cleaning roller 130 is switched between a state of being fixed to the roller brush chamber and a state of being removable from the roller brush chamber by engagement or disengagement between the stopper portion 180 and the latch portion 140. The arrangement mode enables the cleaning roller 130 to be detachable relative to the machine body 100, and simplifies the operation process of detaching the cleaning roller 130 by a user, so that the user can clean the cleaning roller 130 more carefully when the cleaning roller 130 is detached, which is beneficial to maintaining the cleaning degree of the cleaning roller 130, and further avoids a large amount of dirt and bacteria attached to the cleaning roller 130 to a great extent, and the subsequent cleaning effect of the surface cleaning device can be maintained at a higher level. In addition, when the user has the requirement of replacing the cleaning roller 130, the cleaning roller 130 can be detachably arranged, so that the operation time of the user is greatly saved, and the use experience of the user is improved.

In addition, the setting of guide way 170 can be guided when locking seat 190 inserts or breaks away from the roller brush chamber, avoids locking seat 190 the condition of assembly error to a certain extent to appear for the assembly and the dismantlement process of scrub roller 130 are smoother, thereby when promoting locking seat 190 assembly efficiency and degree of accuracy, reduce because of the interference that other spare parts probably caused in the roller brush chamber of existence of assembly error. In addition, the guide groove 170 is arranged to limit the locking seat 190 through the matching with the locking seat 190, and the guide groove 170 is arranged on the side wall of the roller brush cavity, and the locking seat 190 is arranged at the end part of the cleaning roller 130, so that the guide groove 170 can well limit the axial direction of the cleaning roller 130, and the axial displacement of the cleaning roller 130 in the working process is prevented to the greatest extent.

Specifically, as shown in fig. 7 and 10, the latch 140 may be provided with an elastic protrusion 141, the limiting portion 180 is provided as a limiting groove, the cleaning roller 130 is detachably fixed in the roller brush cavity by the cooperation of the protrusion and the groove, and the elastic characteristic of the elastic protrusion 141 makes the assembly process between the elastic protrusion 141 and the limiting groove more convenient and reliable, the engagement between the protrusion and the groove is completed while the insertion engagement between the locking seat 190 and the guide groove 170 is completed, so as to further improve the convenience of taking and placing the roller brush assembly in the roller brush cavity. Of course, the limiting portion 180 may be an elastic protrusion 141, and the latch portion 140 may be provided with a limiting groove adapted to the elastic protrusion 141, so that the roller brush assembly can be taken in and out of the roller brush cavity.

As a preferred example of this embodiment, referring to fig. 10, the locking seat 190 includes a fixed end 191 and a free end 192, the fixed end 191 is movably connected to the cleaning roller 130, and the free end 192 is exposed to a sidewall of the roller brush chamber in a radial direction of the cleaning roller 130.

The locking seat 190 comprises a fixed end 191 and a free end 192, the fixed end 191 is movably connected with the cleaning roller 130, the locking seat 190 and the cleaning roller 130 can move relatively, when the locking seat 190 is fixed on the side wall of the roller brush cavity, the cleaning roller 130 can rotate in the roller brush cavity to ensure that the cleaning roller 130 stably exerts a rotating cleaning effect, and the free end 192 is exposed on the side wall of the roller brush cavity in the radial direction of the cleaning roller 130, so that the length of the free end 192 is prolonged, a good guiding effect is achieved on the locking seat 190, and the locking seat 190 can be easily inserted into the guide groove 170 in the radial direction of the cleaning roller 130; on the other hand, the portion of the free end 192 exposed to the side wall of the roller brush chamber can be easily held by a user, thereby facilitating the smooth assembling and disassembling of the cleaning roller 130 and improving the user experience.

As a preferred example of this embodiment, referring to fig. 10, a hand-fastening groove 193 may be provided at the free end 192, the opening of the hand-fastening groove 193 faces away from the side wall of the roller brush cavity, and the height of the hand-fastening groove 193 is greater than the radius of the cleaning roller 130, so that the hand-fastening groove 193 is at least partially exposed to the roller brush cavity.

This arrangement allows the user to change the hand-held latch 140 to the hand-held slot 193 for mounting the roller brush assembly, which improves the convenience of the cleaning roller 130 in the removal and replacement process by holding the slot 193; on the other hand, the opening of the hand fastening groove 193 is set to be away from the roller brush cavity, so that the situation that interference occurs between the hand of a user and the side wall of the roller brush cavity in the process of disassembling and assembling the cleaning roller 130 can be avoided to the greatest extent compared with the mode that the opening faces the roller brush cavity, and the smooth disassembling and assembling process of the cleaning roller 130 is facilitated. In addition, the at least partial exposure of the gripping recess 193 to the roller brush cavity can further facilitate gripping of the free end 192 by a user, thereby facilitating an enhanced user experience.

As a preferred example of this embodiment, the guide groove 170 has an opening into which the locking seat 190 is inserted.

The provision of the opening can facilitate the user to place the cleaning roller 130 in the guide groove 170. Specifically, with respect to the specific structure of the opening in the guide groove 170, two different embodiments will be explained below:

example one

As shown in fig. 7, the opening of the guiding groove 170 is vertically upward, and in this way, the free end 192 of the locking seat 190 is obviously exposed from the view point of the user facing the surface cleaning device, especially from the view point of the user bending down to disassemble and assemble the roller brush assembly, the free end 192 is exposed upward, so that the user can conveniently and directly pull the roller brush assembly upward to take the roller brush assembly out of the roller brush cavity.

Example two

As shown in fig. 14, the opening of the guide groove 170 is disposed obliquely upward, and in this arrangement, the top wall of the machine body 100 can shield a large portion of the cleaning roller 130 by properly extending the length of the top wall of the machine body 100, so that the provision of the roller brush cover 160 can be eliminated compared to the first embodiment. The second embodiment provides the above structure, which can also shield the cleaning roller 130 and prevent external impurities from directly entering the roller brush cavity to a certain extent.

The opening of the guide groove 170 is set to be inclined upwards or vertically upwards, so that the mounting or dismounting direction of the cleaning roller 130 can be limited, and the cleaning roller 130 can be taken and placed along the opening direction. Specifically, because the scrub roller 130 of the surface cleaning apparatus provided herein is in direct contact with the floor during operation, the user is generally taller than the scrub roller 130 due to the height of the user. At this time, if the opening of the guide groove 170 is inclined upward or vertically upward, the opening direction is actually convenient for the user to operate, so that the user can easily reach the cleaning roller 130, thereby implementing the mounting and dismounting of the cleaning roller 130. The arrangement mode comprehensively considers the use experience of the user and accords with the design principle of ergonomics and the operation habit of the user, thereby greatly facilitating the picking and placing operation of the cleaning roller 130 by the user and enjoying the user.

With regard to the specific structure of the damping member 150, three different embodiments will be explained below:

example one

The damping member 150 is a reduction drive.

It should be noted that the present application does not limit the specific structure of the reduction drive. For example, the reduction drive can be a cylindrical gear reducer or a worm gear reducer.

As a specific example, the speed reduction driver in the present application may be a cylindrical gear speed reducer, and in practical implementation, the output shaft of the cylindrical gear speed reducer may be in transmission connection with the transmission member 120, the reduction ratio of the cylindrical gear speed reducer is used to reduce the rotating speed of the transmission member 120 when the transmission member 120 rotates reversely, the rotating speed of the transmission member 120 when the transmission member rotates reversely is less than the rotating speed of the cleaning roller 130 when the cleaning roller rotates reversely, and the transmission efficiency is high.

As a preferred example, the reduction driver in this application may be a worm gear reducer, and compared with a cylindrical gear reducer, the worm gear reducer has a reverse self-locking function, and the rotation direction of the transmission member 120 can be limited to the forward rotation direction by the reverse self-locking function, so as to avoid the reverse rotation.

In practical application, as shown in fig. 16, the worm gear reducer includes a worm wheel 151 and a worm 152 engaged with each other, the worm wheel 151 is sleeved on the rotating shaft 124 of the transmission member 120 and is in transmission connection with the rotating shaft 124, so that the lead angle of the worm 152 is smaller than the equivalent friction angle between the wheel teeth of the worm wheel 151, and reverse self-locking can be realized, that is, the worm wheel 152 can only drive the worm wheel 152 to rotate, but the worm 152 cannot be driven by the worm wheel 151, in other words, because the worm wheel 151 is in transmission connection with the rotating shaft 124 of the transmission member 120, the transmission member 120 can only be driven by the worm 152, and the worm 152 cannot be driven by the transmission member 120 to rotate, so that the driving device 110 can be in transmission connection with the worm 152, the transmission member 120 is driven to rotate forward by the transmission of the worm wheel 152 and the worm wheel 151 sequentially, and the transmission member 120 and the worm wheel 151 cannot rotate backward under the action of the damping member 150 of the worm gear reducer during the installation of the cleaning roller 130, the rapid assembly with the driving member 120 is completed during the reverse rotation of the cleaning roller 130.

Example two

The damping member 150 is a ratchet mechanism.

Specifically, as shown in fig. 17 and 18, the ratchet mechanism may include a ratchet 153, a fixing ring 154, and a roller holder 155, a plurality of rollers 156 are movably disposed on the roller holder 155, and each roller 156 may float in a radial direction and may rotate on the roller holder 155. The ratchet 153 can be fixedly sleeved on the transmission member 120, the roller holder 155 is sleeved outside the ratchet 153, and the fixing ring 154 is sleeved outside the roller holder 155. As shown in fig. 17, when the transmission member 120 rotates reversely, the ratchet 153 fixed on the transmission member 120 rotates clockwise, so that the roller 156 on the roller holder 155 is clamped between the high point of the ratchet 153 and the inner wall of the fixing ring 154, and at this time, the transmission member 120 is in a tensioned state with the fixing ring 154 through the roller 156, and the transmission member 120 cannot rotate reversely only by keeping the fixing ring 154 in a fixed state, i.e., locking the transmission member 120 through the ratchet 153; as shown in fig. 18, when the transmission member 120 rotates forward, the ratchet 153 fixed on the transmission member 120 rotates counterclockwise, so that the roller 156 on the roller holder 155 is located at the lowest point of the ratchet 153 and is separated from the inner wall of the fixing ring 154, the fixing ring 154 loses the locking effect on the ratchet 253, and the transmission member 120 can rotate forward, thereby driving the cleaning roller 130 to clean the floor.

EXAMPLE III

As shown in fig. 15, the damping member 150 includes a gear drivingly connected to the rotating shaft of the driving device 110 and a transmission chain 158 for connecting the gear 157 and the transmission member 120.

When the driving member 120 drives the driving device to rotate reversely, two-stage resistance generated by the transmission chain 158 and the gear 157 needs to be overcome at the same time, so that the two-stage resistance is far larger than the rotation resistance of the cleaning roller 130 relative to the latching part 140, and the cleaning roller 130 rotates reversely relative to the latching part 140 when the cleaning roller 130 is assembled with the driving member 120 in an abutting mode, while the driving member 120 cannot rotate reversely or rotates reversely at a speed lower than that of the cleaning roller 130, and the cleaning roller 130 is installed in place by using the difference between the rotation speeds of the cleaning roller 130 and the driving member 120.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A surface cleaning device comprises a machine body with a roller brush cavity and a roller brush component which is arranged in the roller brush cavity in a pick-and-place way; the machine body comprises a driving device and a transmission part connected with the driving device, the roller brush component comprises a cleaning roller and a latch part rotationally connected with a first end of the cleaning roller, the latch part is used for fixing the cleaning roller in the roller brush cavity, the transmission part is matched with a second end of the cleaning roller so as to ensure that the cleaning roller positively rotates to clean the ground, and the roller brush component is characterized in that,

the machine body further comprises a damping component matched with the transmission component, and the reverse rotation resistance provided by the damping component to the transmission component is larger than the rotation resistance of the cleaning roller relative to the latching part, so that the cleaning roller reversely rotates relative to the latching part when the cleaning roller is in butt joint with the transmission component.

2. A surface cleaning apparatus as claimed in claim 1, characterised in that the damping member limits the direction of rotation of the drive member to a forward direction.

3. A surface cleaning apparatus as claimed in claim 1, wherein the second end of the cleaning roller is provided with a hollow portion into which the shaft of the drive member can be inserted, and the outer surface of the shaft is provided with fixing ribs which can engage with the inner wall of the hollow portion.

4. A surface cleaning apparatus as claimed in claim 3, characterised in that the shaft is screw-fitted into the hollow portion.

5. A surface cleaning apparatus as claimed in claim 1, characterised in that the second end of the cleaning roller is provided with a projection and the drive member is provided with a recess into which the projection can be screwed.

6. A surface cleaning apparatus as claimed in claim 1, wherein the side walls of the roller brush chamber are provided with a guide groove and a stopper, the roller brush assembly further comprises a locking seat provided at the first end of the cleaning roller, the latching portion is located in the locking seat, and the locking seat is inserted along the guide groove so that the latching portion cooperates with the stopper to mount the cleaning roller in the roller brush chamber.

7. A surface cleaning apparatus as claimed in claim 6, characterised in that the locking socket comprises a fixed end which is movably connected to the cleaning roller and a free end which is exposed to the side wall of the roller brush chamber in the radial direction of the cleaning roller.

8. A surface cleaning apparatus as claimed in claim 6, characterised in that the guide slot has an opening into which the locking socket is inserted, the opening being disposed obliquely upwardly or vertically upwardly.

9. A surface cleaning apparatus as claimed in any one of claims 1 to 8, characterised in that the damping means is a reduction drive.

10. A surface cleaning apparatus as claimed in any one of claims 1 to 8, characterised in that the damping member is a ratchet mechanism.

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