CN219578825U - Cleaning equipment - Google Patents

Abstract

The utility model relates to the field of cleaning equipment, and discloses cleaning equipment which comprises a chassis, a cleaning piece, a first wheel, a second wheel and a lifting mechanism; the cleaning piece is arranged on the chassis, one of the first wheel and the second wheel is connected with the chassis through a lifting mechanism, the other is connected with the chassis, and the lifting mechanism is used for driving the connected wheels to lift so as to suspend or bear the weight of the connected wheels; when the cleaning equipment is in a parking state, the first wheel and the second wheel bear weight simultaneously, when the cleaning equipment is in a moving state, the cleaning equipment can clean the ground, the first wheel or the second wheel is suspended, the contact between the wheels and the ground can be reduced, the possibility that the wheels are stained with residual stains on the ground is reduced, the wheels are not easy to be polluted, secondary pollution to the ground is not easy to cause, and the effect of cleaning the ground is good.

Description

Cleaning equipment

Technical Field

The present disclosure relates to the field of cleaning devices, and in particular to a cleaning device.

Background

At present, the cleaning capability of the cleaning floor scrubber can not completely clean the dirt at one time, residual dirt exists after one time cleaning, and when the cleaning floor scrubber continues to advance, the auxiliary wheel at the rear end is stained with the residual dirt, so that the auxiliary wheel is polluted. Therefore, in the follow-up back and forth cleaning of the cleaning and floor washing machine, secondary pollution is caused to the ground by the auxiliary wheel, and the cleaning and floor washing machine cannot clean the auxiliary wheel, so that the effect of cleaning the ground by the conventional cleaning and floor washing machine is poor.

Disclosure of Invention

The embodiment of the disclosure aims to provide cleaning equipment so as to solve the technical problem that the effect of cleaning the floor by a floor cleaning machine in the prior art is poor.

The technical problems of the embodiments of the present disclosure are solved by adopting the following technical schemes: provided is a cleaning apparatus including a chassis, a cleaning member, a first wheel, a second wheel, and a lifting mechanism; the cleaning piece is arranged on the chassis, one of the first wheel and the second wheel is connected with the chassis through the lifting mechanism, the other is connected with the chassis, and the lifting mechanism is used for driving the connected wheels to lift so as to suspend or bear the weight of the connected wheels; when the cleaning equipment is in a parking state, the first wheel and the second wheel bear load at the same time, and when the cleaning equipment is in a moving state, the first wheel or the second wheel is suspended.

In some embodiments, the cleaning apparatus includes a pushrod coupled to the chassis.

In some embodiments, the cleaning apparatus further comprises a sensor assembly; the push rod can rotate between a first position and a second position, and the sensor assembly is arranged on the chassis and used for detecting the position information of the push rod and controlling the lifting mechanism to work according to the detected position information.

In some embodiments, the sensor assembly includes a photosensor including a transmitter and a receiver; when the push rod rotates to the first position, the push rod rotates to a position between the transmitter and the receiver; the pushrod exits from between the emitter and the receiver when the pushrod is rotated to the second position.

In some embodiments, the lifting mechanism comprises a crank and an elastic member; one end of the crank is movably connected with the chassis, one of the first wheel and the second wheel is movably connected with the other end of the crank, and the elastic piece is connected with the crank; the push rod can rotate between a first position and a second position, when the push rod rotates to the second position, the push rod presses down the crank to descend, when the push rod rotates to the first position, the push rod stops pressing down the crank, and the elastic piece is restored to drive the crank to ascend.

In some embodiments, the pushrod is perpendicular to the ground when rotated to the first position, and the pushrod forms an acute or obtuse angle with the ground when rotated to the second position.

In some embodiments, the lifting mechanism comprises a motor and a crank; the motor is fixed on the chassis, one end of the crank is rotationally connected with the chassis, one of the first wheel and the second wheel is connected with the other end of the crank, and the motor is used for driving the crank to rotate.

In some embodiments, the chassis has a first end and a second end; the second wheel is connected with the chassis through the lifting mechanism, and the lifting mechanism lifts the second end when driving the second wheel to descend and enables the first end to sink; the first wheel is connected with the second end, and the first end is provided with a dirt sucking port.

In some embodiments, one of the first wheel and the second wheel is load-bearing while the cleaning device is in a mobile state, the other wheel being suspended; in the first wheel and the second wheel, the width of the ground contact position when one wheel bears weight is smaller than the width of the ground contact position when the other wheel bears weight.

In some embodiments, the weight bearing wheel of both the first wheel and the second wheel comprises a sphere or ellipsoid for contacting the floor to bear weight when the cleaning device is in a mobile state.

Compared with the prior art, in the cleaning device that this disclosed embodiment provided, cleaning device can clean ground when being in the mobile state, and first round or second round unsettled can reduce the wheel and the contact on ground this moment, reduce the possibility that the wheel was infected with by subaerial residual spot from this, and the wheel is difficult to by the pollution, is difficult to cause secondary pollution to ground, and the effect on clean ground is better.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic structural view of a cleaning apparatus according to one embodiment of the present disclosure, wherein a pushrod of the cleaning apparatus is in a first upright position;

FIG. 2 is a schematic view of the cleaning apparatus shown in FIG. 1 at another angle;

FIG. 3 is a cross-sectional view at A-A shown in FIG. 2;

FIG. 4 is a cross-sectional view at B-B shown in FIG. 2;

FIG. 5 is a schematic view of the cleaning apparatus shown in FIG. 1 in another configuration, wherein the push rod of the cleaning apparatus is in a second upright position;

FIG. 6 is a schematic view of the cleaning apparatus shown in FIG. 5 at another angle;

FIG. 7 is a cross-sectional view at C-C shown in FIG. 6;

FIG. 8 is a schematic view of the first wheel and lift mechanism of the cleaning device shown in FIG. 1;

fig. 9 is a partial enlarged view at I shown in fig. 3.

Detailed Description

In order to facilitate an understanding of the present disclosure, the present disclosure is described in more detail below in conjunction with the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "connected" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "left," "right," "upper," "lower," "top," and "bottom," and the like, as used in this specification, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

The cleaning scrubber is generally provided with an auxiliary wheel for carrying and supporting the cleaning scrubber, and the auxiliary wheel is designed to be large in size and substantially cylindrical in shape in order to achieve a saving of power during carrying. However, the cleaning capability of the conventional cleaning floor scrubber cannot completely clean the dirt at one time, and residual dirt exists after one cleaning, and when the cleaning floor scrubber continues to advance, the auxiliary wheel is polluted due to the fact that the auxiliary wheel is designed to be large in size, the contact area between the auxiliary wheel and the ground is large, the auxiliary wheel is in line contact with the ground, and the residual dirt is polluted by the auxiliary wheel at the rear end of the auxiliary wheel, so that the auxiliary wheel is polluted. Therefore, in the follow-up back and forth cleaning of the cleaning and floor washing machine, secondary pollution is caused to the ground by the auxiliary wheel, and the cleaning and floor washing machine cannot clean the auxiliary wheel, so that the effect of cleaning the ground by the conventional cleaning and floor washing machine is poor.

Referring to fig. 1 to 4, the embodiment of the present disclosure provides a cleaning apparatus 100 including a chassis 10, a cleaning member 20, a first wheel 30, a second wheel 40, and a lifting mechanism 50. The cleaning member 20 is provided to the chassis 10, and one of the first wheel 30 and the second wheel 40 is connected to the chassis 10 via the elevating mechanism 50, and the other is connected to the chassis 10. The cleaning member 30 is used for cleaning the floor, and the lifting mechanism 50 is used for driving the connected wheels to lift so that the connected wheels are suspended or bearing.

The first wheel 30 and the second wheel 40 are simultaneously load bearing when the cleaning apparatus 100 is in the docked state. The first wheel 30 or the second wheel 40 is suspended when the cleaning device 100 is in a moving state.

The cleaning apparatus 100 can clean the ground when in a moving state, and at this time, the first wheel 30 or the second wheel 40 is suspended to reduce the contact between the wheels and the ground, thereby reducing the possibility that the wheels are stained with residual stains on the ground, the wheels are not easy to be polluted, secondary pollution is not easy to be caused to the ground, and the effect of cleaning the ground is good. In addition, when the cleaning device 100 is in a parking state, the first wheel 30 and the second wheel 40 have good bearing and supporting effects at the same time, and the cleaning device 100 can be conveniently carried.

When the cleaning apparatus 100 is in a moving state, one of the first wheel 30 and the second wheel 40 is bearing and the other is suspended.

In the first wheel 30 and the second wheel 40, the width of the ground contact position when one of the wheels is loaded is smaller than the width of the ground contact position when the other wheel is loaded, and the direction of the width is parallel to the wheel axis of the wheels.

In particular, when the cleaning device is in a mobile state, the suspended wheels of the first wheel and the second wheel can be designed into a cylindrical structure, and the suspended wheels are provided with cylindrical surfaces, wherein the cylindrical surfaces are used for contacting the ground to bear weight, and the linear contact is formed approximately, the linear contact is parallel to a generatrix of the cylindrical structure, and the area of the ground contacted when the ground rolls is in a strip shape. When the cleaning device is in a moving state, the suspended wheels in the first wheel and the second wheel can be approximately designed into a sphere or an ellipsoid structure, and the suspended wheels are provided with a sphere or an ellipsoid which is used for contacting the ground to bear load so as to approximately form point contact, and the contacted ground area is linear when the ground rolls. Thus, the possibility of the load bearing wheel being contaminated with residual stains during the back and forth cleaning of the cleaning device can be reduced.

It will be appreciated that the shape of the wheels is merely exemplary and that the shape of the wheels may be designed to any shape as desired, provided that the width of the ground contact point when the wheels are loaded is smaller than the width of the ground contact point when the suspended wheels are loaded when the cleaning device 100 is in a mobile position.

In this embodiment, the first wheel 30 is connected to the chassis 10 by the lifting mechanism 50, the second wheel 40 is connected to the chassis 10, and the width of the ground contact position of the second wheel 40 when bearing weight is smaller than the width of the ground contact position of the first wheel 30 when bearing weight. When the cleaning apparatus 100 is in the docked state, the lifting mechanism 50 drives the first wheel 30 down into contact with the floor to bear weight simultaneously with the second wheel 40. When the cleaning apparatus 100 is in a moving state, the lifting mechanism 50 drives the first wheel 30 to rise until leaving the floor to hang, and the second wheel 40 bears the weight.

In other embodiments, the first wheel 30 is coupled to the chassis 10, and the second wheel 40 is coupled to the chassis 10 via the lift mechanism 50 such that the width of the ground contact area of the second wheel 40 when it is loaded is less than the width of the ground contact area of the first wheel 30 when it is loaded. When the cleaning apparatus 100 is in the parked state, the lifting mechanism 50 drives the second wheel 40 to rise, and as the second wheel 40 keeps contacting the ground, the distance between the second wheel 40 and the chassis 10 is reduced, the chassis 10 approaches the ground, and the first wheel 30 is carried along with the ground until contacting the ground to bear the weight. When the cleaning apparatus 100 is in a moving state, the lifting mechanism 50 drives the second wheel 40 to descend, and as the second wheel 40 keeps contacting the ground, the distance between the second wheel 40 and the chassis 10 increases, the chassis 10 is far away from the ground, and the first wheel 30 is carried along with the ground until the second wheel is separated from the ground to be suspended.

In other embodiments, the first wheel 30 is coupled to the chassis 10 via the lift mechanism 50 and the second wheel 40 is coupled to the chassis 10 such that the width of the ground contact area of the first wheel 30 when it is loaded is less than the width of the ground contact area of the second wheel 40 when it is loaded. When the cleaning apparatus 100 is in the parked state, the lifting mechanism 50 drives the first wheel 30 to rise, and as the first wheel 30 keeps contacting the ground, the distance between the first wheel 30 and the chassis 10 is reduced, the chassis 10 approaches the ground, and the second wheel 40 is carried along with the ground until contacting the ground to bear the weight. When the cleaning apparatus 100 is in a moving state, the lifting mechanism 50 drives the first wheel 30 to descend, and as the first wheel 30 keeps contacting the ground, the distance between the first wheel 30 and the chassis 10 increases, the chassis 10 is far away from the ground, and the second wheel 40 is carried along with the ground until the first wheel is separated from the ground to be suspended.

In other embodiments, the first wheel 30 is coupled to the chassis 10 and the second wheel 40 is coupled to the chassis 10 via the lift mechanism 50 such that the width of the ground contact area of the first wheel 30 when it is loaded is less than the width of the ground contact area of the second wheel 40 when it is loaded. When the cleaning apparatus 100 is in the docked state, the lifting mechanism 50 drives the second wheel 40 down into contact with the floor to bear weight simultaneously with the first wheel 30. When the cleaning apparatus 100 is in a moving state, the lifting mechanism 50 drives the second wheel 40 to rise until leaving the floor to hang, and the first wheel 30 bears the weight.

The chassis 10 has a first end 12 and a second end 14. The cleaning apparatus 100 includes a support member that supports the first end 12. One of the first wheel 30 and the second wheel 40 supports the second end when load-bearing.

In this embodiment, the cleaning member 20 includes a roller brush. A roller brush is attached to the first end 12 and is rotatable to clean the floor. The roller brush is in contact with the ground for supporting the first end 12, forming a support.

It will be appreciated that the cleaning element 20 and the support element may be two separate components, as desired. In other embodiments, the support and the cleaning member 20 are two separate components, the support may be a support wheel, the cleaning member 20 may be a mop, an edge brush, or the like, without limiting the disclosure.

A fan and a dust box can be arranged in the chassis 10, a dirt sucking port is arranged on the bottom surface of the chassis 10, and the dirt sucking port can be specifically arranged at the first end 12. The dust box is communicated with the dirt absorbing port, and the fan is connected with the dust box and used for providing suction force, so that dirt on the ground can be sucked into the dust box through the dirt absorbing port to clean the ground.

With the cleaning apparatus 100 in the docked condition, the lifting mechanism 50 drives the attached wheels up until the bottom surface of the chassis 10 can be substantially parallel to the floor when the first wheel 30 and the second wheel 40 are simultaneously load bearing. When the cleaning apparatus 100 is in a moving state, the lifting mechanism 50 drives the connected wheel to descend, lifts the second end 14, the first end 12 sinks, the dirt suction opening is closer to the ground, the suction force at the dirt suction opening is larger, and an included angle is formed between the plane where the dirt suction opening is located and the ground, so that the dirt recovery capability can be increased, and the possibility of pollution of the bearing wheel is reduced.

In this embodiment, the cleaning apparatus 100 is a hand-held floor washer. The hand-held floor washer includes a push rod 60, the push rod 60 being connected to the chassis 10. The user can push the entire hand-held floor washer to move by the push rod 60.

It will be appreciated that the cleaning apparatus 100 is not limited to a hand-held floor washer, and that in other embodiments, the cleaning apparatus 100 may be a cleaning robot, a manned cleaning vehicle, etc., as desired, and the utility model is not limited in this regard.

Referring to fig. 5 to 7, one end of the push rod 60 is rotatably connected to the chassis 10, the push rod 60 can rotate between a first position and a second position, the push rod 60 is shown in fig. 1 to 4 when rotating to the first position, and is shown in fig. 5 to 7 when rotating to the second position. By adjusting the position of the push rod 60, on the one hand, a user can push the whole handheld floor washer through the push rod 60 with less effort, and on the other hand, the push rod 60 is not easy to block pedestrians when parking the handheld floor washer.

The push rod 60 is rotatable in a vertical plane, the push rod 60 being at a different vertical angle in the first and second positions.

In particular, the first position is substantially perpendicular to the ground. When the hand-held floor scrubber is in a parked state, the push rod 60 can be rotated to the first position, the push rod 60 is substantially perpendicular to the ground, and is not easy to collide, thereby facilitating storage. The second position forms an acute or obtuse angle with the ground. When in a moving state, the push rod 60 can be rotated to a second position, the push rod 60 forms an acute angle or an obtuse angle with the ground, and a user can push the hand-held floor washer through the push rod 60 conveniently.

The chassis 10 may include two mounting walls 14 disposed opposite one another. One end of the push rod 60 may be mounted between the two mounting walls 14 by a rotating shaft.

The hand-held floor washer includes a sensor assembly 70. The sensor assembly 70 is disposed on the chassis, and is used for detecting position information of the push rod 60 and controlling the lifting mechanism 50 to operate according to the detected position information. Thus, the first wheel 30 can be automatically controlled to suspend or bear load, which is convenient.

When the hand-held floor washer is to be parked, the user rotates the push rod 60 to the first position, the sensor assembly 70 detects that the push rod 60 is rotated to the first position, and the lifting mechanism 50 is controlled to drive the connected wheels to lift until the first wheel 30 and the second wheel 40 bear weight at the same time.

When the hand-held floor washing machine needs to be moved, the user rotates the push rod 60 to the second position, the sensor assembly 70 detects that the push rod 60 rotates to the second position, and the lifting mechanism 50 is controlled to drive the connected wheels to lift until the first wheel 30 or the second wheel 40 is suspended.

The sensor assembly 70 includes a photosensor that includes a transmitter 72 and a receiver 74. An emitter 72 and a receiver 74 are fixed to the chassis 10, and in particular may be fixed to the two mounting walls 14, respectively, the emitter 72 being adapted to emit light towards the receiver 74, the receiver 74 being adapted to receive the light emitted by the emitter 72.

The push rod 60, when rotated to the first position, is positioned between the emitter 72 and the receiver 74, blocking light emitted by the emitter 72. At the instant when the receiver 74 does not receive the light emitted by the emitter 72, the photoelectric sensor is triggered, and the lifting mechanism 50 is controlled to drive the connected wheels to lift until the first wheel 30 and the second wheel 40 bear weight at the same time, and at this time, the hand-held floor washing machine is in a stopped state. When the push rod 60 is rotated to the second position, it is moved away from between the emitter 72 and the receiver 74, and the light emitted by the emitter 72 can be received again by the receiver 74. At the instant when the receiver 74 re-receives the light emitted by the emitter 72, the photoelectric sensor is triggered, and the lifting mechanism 50 is controlled to drive the connected wheels to lift until the first wheel 30 or the second wheel 40 is suspended, at this time, the hand-held floor washing machine is in a moving state.

It should be understood that the sensor assembly 70 is not limited to a photoelectric sensor, and the sensor assembly 70 may be any sensing element, such as a travel switch, a proximity switch, etc., according to practical needs, so long as the push rod 60 can be triggered when rotating in the vertical direction, which is not a limitation of the present utility model.

Referring to fig. 7 and 8, in the present embodiment, the lifting mechanism 50 includes a motor 52 and a crank 54. The motor 52 is fixed on the chassis 10, one end of the crank 54 is rotatably connected with the chassis 10, in particular, the crank 54 can be connected with the chassis through a fixed shaft 540, the crank 54 can rotate in a vertical plane, one of the first wheel 30 and the second wheel 40 is rotatably connected with the other end of the crank 54, and the other of the first wheel 30 and the second wheel 40 is rotatably connected with the chassis 10. The motor 52 is used to drive the crank 54 to rotate in a vertical plane, thereby driving the wheel connected to the other end of the crank 54 to rise and fall.

In this embodiment, the lift mechanism 50 includes a gear 56. The gear 56 is coaxially fixed on the output shaft of the motor 52, one end of the crank 54, which is connected with the chassis 10 in a rotating way, is meshed with the gear 56, and the gear 56 and the crank 54 are meshed to play a role in reducing and increasing moment.

In this embodiment, the end of the crank 54 that is rotatably connected to the chassis 10 is provided with a tooth structure 542, and the tooth structure 542 is engaged with the crank 54. By providing the crank 54 with a tooth arrangement 542, the crank 54 is substantially in the same vertical plane as the gear 56, and the crank 54 and the gear 56 do not need to be staggered, facilitating installation in a compact and complex installation space of the cleaning apparatus 100.

It will be appreciated that the lifting mechanism 50 may include driven gears, as desired. The driven gear is located at one side of the crank 54 and is coaxially fixed to one end of the chassis 10 connected with the rotation of the crank 54, the driven gear is meshed with the gear 56, and the gear 56 can drive the driven gear to rotate when rotating, and the driven gear drives the crank 54 to rotate together.

Referring to fig. 9, the chassis 10 includes a top wall 15, a bottom wall 16, a motor mounting bracket 17, and a crank mounting bracket 18. The top wall 15 is disposed opposite the bottom wall 16, the bottom wall 16 being located between the ground and the top wall 15. The top wall 15 is provided with a motor mounting bracket 17 protruding in the direction of the bottom wall 16, and the motor 52 is fixed to the motor mounting bracket 17. The bottom wall 16 is convexly provided with a crank mounting bracket 18 toward the top wall 15, and the crank 54 is connected to the crank mounting bracket 18 via a fixed shaft 540.

The lifting mechanism 50 drives the connected wheels to lift as follows:

when the connected wheel needs to be driven to ascend, the motor 52 rotates positively to drive the gear 56 to rotate positively, the gear 56 drives the crank 54 to rotate reversely, and the other end of the crank 54 connected with the wheel ascends, so that the connected wheel is driven to ascend, as shown in figures 1 to 4;

when the connected wheel needs to be driven to descend, the motor 52 reversely rotates to drive the gear 56 to reversely rotate together, the gear 56 drives the crank 54 to positively rotate, and the other end of the crank 54 connected with the wheel descends to drive the connected wheel to descend, as shown in fig. 5 to 7.

It will be appreciated that gear 56 may be omitted as is practical. In other embodiments, the output shaft of the motor 52 is coaxially fixed to one end of the crank 54, and the motor 52 may directly drive the crank 54 to rotate in a vertical plane.

It will be appreciated that, according to practical needs, the gear 56 may be replaced by other transmission mechanisms, such as a worm gear, a link mechanism, etc., so long as the power output by the motor 52 can be transmitted to the crank 54 to drive the crank 54 to rotate in a vertical plane, which is not limited to the present utility model.

It will be appreciated that the lifting mechanism may not include a motor, as is practical. In other embodiments, the lifting mechanism includes a crank and a resilient member. One end of the crank is movably connected with the chassis, the crank can be lifted, specifically, one of the crank and the chassis can be provided with a sliding block, the other one of the crank and the chassis can be provided with a guide rail extending along the vertical direction, and the sliding block is matched with the guide rail to guide the crank to lift. One of the first wheel and the second wheel is rotatably connected with the other end of the crank, and the other wheel is rotatably connected with the chassis. The elastic piece is connected with the crank.

The push rod presses down the crank when rotating to the second position until the crank descends, and at the same time, the elastic piece compresses. The crank drives the connected wheels to descend together when descending, so that the function of the lifting mechanism for driving the connected wheels to descend is realized.

The push rod stops pushing down the crank when rotating to the first position, the elastic piece is restored, the crank is driven to rise, and the crank drives the connected wheels to rise together, so that the lifting mechanism drives the connected wheels to rise.

The crank can extend towards the direction of push rod and have the pressing structure, and the push rod can realize pressing the push rod through pushing down the pressing structure.

Taking the example that the first wheel 30 is connected to the chassis 10 through the lifting mechanism 50 and the second wheel 40 is connected to the chassis 10, the use process of the hand-held floor washing machine will be described, which is generally as follows:

in the mobile position, the user rotates the push rod 60 to the second position, the push rod 60 is positioned between the emitter 72 and the receiver 74 of the photoelectric sensor, light emitted from the emitter 72 to the receiver 74 is blocked, the photoelectric sensor is triggered, and a forward rotation signal is transmitted to the motor 52. When the motor 52 receives the forward rotation signal, the gear 56 is driven to rotate in the forward direction, the gear 56 drives the crank 54 to rotate in the reverse direction, and one end of the crank 54 connected with the wheel rises to drive the connected wheel to hang in the air, and the width of the contact position between the bearing wheel and the ground is smaller than that of the contact position between the bearing wheel and the ground when the hanging wheel bears the weight. Thus, the wheels are not easily contaminated with residual soil from the floor during movement of the cleaning apparatus 100.

In the mobile position, the user rotates the push rod 60 to the first position, the push rod 60 is separated from the position between the emitter 72 and the receiver 74 of the photoelectric sensor, the receiver 74 receives again the light emitted by the emitter 72, the photoelectric sensor is triggered, and the reverse rotation signal is transmitted to the motor 52. When the motor 52 receives the signal of reverse rotation, the motor rotates reversely to drive the gear 56 to rotate reversely, the gear 56 drives the crank 54 to rotate positively, one end of the crank 54 connected with the wheel descends, so that the connected wheel descends to bear load, the first wheel 30 and the second wheel 40 bear load at the same time, and labor is saved during carrying.

Compared with the prior art, in the cleaning device 100 provided in the embodiment of the present disclosure, the cleaning device 100 can clean the ground when in a moving state, and at this time, the first wheel 30 or the second wheel 40 is suspended to reduce the contact between the wheels and the ground, thereby reducing the possibility that the wheels are stained with residual stains on the ground, the wheels are not easy to be polluted, secondary pollution is not easy to be caused to the ground, and the effect of cleaning the ground is better.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; the technical features of the above embodiments or in different embodiments may also be combined under the idea of the present disclosure, the steps may be implemented in any order, and there are many other variations of the different aspects of the present disclosure as described above, which are not provided in details for the sake of brevity; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims (10)

1. A cleaning device, which is characterized by comprising a chassis, a cleaning piece, a first wheel, a second wheel and a lifting mechanism;

the cleaning piece is arranged on the chassis, one of the first wheel and the second wheel is connected with the chassis through the lifting mechanism, the other is connected with the chassis, and the lifting mechanism is used for driving the connected wheels to lift so as to suspend or bear the weight of the connected wheels;

when the cleaning equipment is in a parking state, the first wheel and the second wheel bear load at the same time, and when the cleaning equipment is in a moving state, the first wheel or the second wheel is suspended.

2. The cleaning apparatus of claim 1, comprising a pushrod coupled to the chassis.

3. The cleaning apparatus of claim 2, further comprising a sensor assembly;

the push rod can rotate between a first position and a second position, and the sensor assembly is arranged on the chassis and used for detecting the position information of the push rod and controlling the lifting mechanism to work according to the detected position information.

4. A cleaning device according to claim 3, wherein the sensor assembly comprises a photoelectric sensor comprising a transmitter and a receiver;

when the push rod rotates to the first position, the push rod rotates to a position between the transmitter and the receiver;

the pushrod exits from between the emitter and the receiver when the pushrod is rotated to the second position.

5. The cleaning apparatus of claim 2, wherein the lifting mechanism comprises a crank and an elastic member;

one end of the crank is movably connected with the chassis, one of the first wheel and the second wheel is movably connected with the other end of the crank, and the elastic piece is connected with the crank;

the push rod can rotate between a first position and a second position, when the push rod rotates to the second position, the push rod presses down the crank to descend, when the push rod rotates to the first position, the push rod stops pressing down the crank, and the elastic piece is restored to drive the crank to ascend.

6. The cleaning apparatus defined in any one of claims 3-5, wherein the pushrod is oriented perpendicular to the floor when rotated to the first position and wherein the pushrod is oriented at an acute or obtuse angle with respect to the floor when rotated to the second position.

7. The cleaning apparatus defined in any one of claims 1-4, wherein the lifting mechanism comprises a motor and a crank;

the motor is fixed on the chassis, one end of the crank is rotationally connected with the chassis, one of the first wheel and the second wheel is connected with the other end of the crank, and the motor is used for driving the crank to rotate.

8. The cleaning apparatus defined in any one of claims 1-5, wherein the chassis has a first end and a second end;

the second wheel is connected with the chassis through the lifting mechanism, and the lifting mechanism lifts the second end when driving the second wheel to descend and enables the first end to sink;

the first wheel is connected with the second end, and the first end is provided with a dirt sucking port.

9. A cleaning device according to any one of claims 1 to 5, wherein one of the first wheel and the second wheel is load-bearing and the other is suspended when the cleaning device is in a mobile state;

in the first wheel and the second wheel, the width of the ground contact position when one wheel bears weight is smaller than the width of the ground contact position when the other wheel bears weight.

10. The cleaning apparatus of claim 9, wherein the weight bearing wheel of both the first wheel and the second wheel comprises a sphere or ellipsoid for contacting the floor surface to bear weight when the cleaning apparatus is in a mobile state.