CN219109321U

CN219109321U - Cleaning equipment

Info

Publication number: CN219109321U
Application number: CN202222949638.2U
Authority: CN
Inventors: 徐全元; 贺志武; 赵冰; 杨华军; 陈鹏昆
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-06-02
Anticipated expiration: 2032-11-04

Abstract

The application discloses cleaning equipment, which comprises an equipment main body, at least two cleaning mechanisms and a lifting assembly, wherein the at least two cleaning mechanisms are arranged at the bottom of the equipment main body; the lifting assembly is arranged on the equipment main body and comprises a first driving mechanism and at least two first transmission mechanisms; each cleaning mechanism is at least correspondingly connected with one first transmission mechanism, and the first driving mechanism is used for driving at least two first transmission mechanisms to move so as to drive at least two cleaning mechanisms to perform lifting movement, and then the at least two cleaning mechanisms are close to or far away from the bottom of the equipment main body. By the mode, the application scene of the cleaning equipment can be increased.

Description

Cleaning equipment

Technical Field

The application relates to the technical field of intelligent cleaning equipment, in particular to cleaning equipment.

Background

With the development of technology, intelligent cleaning equipment has entered into thousands of households. The intelligent cleaning equipment can reduce the time for cleaning the sanitation of people, save the energy of people, and lead people to really enjoy the achievements of technological development. Cleaning devices often rely on a cleaning mechanism to perform cleaning operations in a variety of settings, such as cleaning the floor of a room.

In the prior art, to facilitate cleaning activities, the floor cleaning assembly is often required to contact the surface to be cleaned. However, in some cleaning situations, the floor cleaning assembly needs to be moved away from the surface to be cleaned, for example if the floor cleaning assembly is a wet mop, the contact of the floor cleaning assembly with the carpet or like fabric can cause damage to the carpet or like fabric as the cleaning robot passes over the carpet or like fabric area. For another example, when the cleaning robot is climbing a short step, contact of the floor mopping assembly with the surface to be cleaned can cause obstruction to the cleaning robot's movement.

Disclosure of Invention

The technical problem that this application mainly solves is to provide cleaning equipment, can increase cleaning equipment's application scenario.

In order to solve the technical problems, the technical scheme adopted by the application is as follows: a cleaning apparatus is provided. The cleaning device comprises a device main body, at least two cleaning mechanisms and a lifting assembly, wherein the at least two cleaning mechanisms are arranged at the bottom of the device main body; the lifting assembly is arranged on the equipment main body and comprises a first driving mechanism and at least two first transmission mechanisms; each cleaning mechanism is at least correspondingly connected with one first transmission mechanism, and the first driving mechanism is used for driving at least two first transmission mechanisms to move so as to drive at least two cleaning mechanisms to perform lifting movement, and then the at least two cleaning mechanisms are close to or far away from the bottom of the equipment main body.

The beneficial effects of this application are: the device is characterized in that the device comprises a device main body, at least two cleaning mechanisms are arranged at the bottom of the device main body, a lifting assembly is arranged at the device main body and comprises a first driving mechanism and at least two first transmission mechanisms, each cleaning mechanism is at least correspondingly connected with one first transmission mechanism, the first driving mechanism is used for driving the at least two first transmission mechanisms to move so as to drive the at least two cleaning mechanisms to conduct lifting motion, the at least two cleaning mechanisms are further enabled to be close to or far away from the bottom of the device main body, the positions of the cleaning mechanisms on the lifting direction can be flexibly adjusted according to application scenes, the at least two cleaning mechanisms can synchronously conduct lifting motion, diversified cleaning requirements of different cleaning scenes are met, and the application scenes of the cleaning device can be increased.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of a cleaning apparatus of the present application;

FIG. 2 is a schematic bottom view of the cleaning apparatus of FIG. 1;

FIG. 3 is a schematic view of a portion of the cleaning apparatus of FIG. 1;

FIG. 4 is a comparative schematic view of the cleaning mechanism in the raised and lowered states, respectively;

FIG. 5 is a schematic view of the connection of the cleaning mechanism and the lifting assembly;

FIG. 6 is a schematic cross-sectional view of the connection structure of FIG. 5 taken along section line A-A;

FIG. 7 is a schematic view of the connection structure of FIG. 5 from another perspective;

FIG. 8 is a schematic view of yet another connection structure of the cleaning mechanism and the lifting assembly;

FIG. 9 is an exploded view of the connection structure of FIG. 8;

FIG. 10 is an exploded view of a portion of the structure of the connection structure of FIG. 8;

FIG. 11 is a schematic perspective view of a cleaning mechanism;

FIG. 12 is an exploded view of the cleaning mechanism of FIG. 11;

FIG. 13 is a schematic cross-sectional view of the cleaning mechanism of FIG. 11 taken along section line B-B.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The inventors have long studied and found that cleaning devices often rely on a cleaning mechanism to perform cleaning operations in a variety of settings, such as cleaning a floor of a room. To facilitate cleaning activities, the floor cleaning assembly often needs to be in contact with the surface to be cleaned. However, in some cleaning situations, the floor cleaning assembly needs to be moved away from the surface to be cleaned, for example if the floor cleaning assembly is a wet mop, the contact of the floor cleaning assembly with the carpet or like fabric can cause damage to the carpet or like fabric as the cleaning robot passes over the carpet or like fabric area. For another example, when the cleaning robot is climbing a short step, contact of the floor mopping assembly with the surface to be cleaned can cause obstruction to the cleaning robot's movement. In order to solve the above technical problems, the present application provides the following embodiments.

Fig. 1 is a schematic perspective view of an embodiment of the cleaning apparatus of the present application, showing the overall structure of the cleaning apparatus 1. As shown in fig. 1 to 3, the cleaning apparatus 1 described in the embodiment of the cleaning apparatus of the present application includes an apparatus main body 100, a lifting assembly 400, and at least two cleaning mechanisms 200, the at least two cleaning mechanisms 200 being disposed at the bottom of the apparatus main body 100.

Optionally, the cleaning device 1 may comprise a movement assembly 110, a detection assembly (not labeled) 120 and a processor (not shown). The detection assembly may include cliff sensors 120 for detecting cliff topography. The device body 100 may support the mobile component 110, the detection component, and the processor. The cleaning device 1 can be moved over the surface to be cleaned by the movement assembly 110. By means of the detection assembly, the cleaning device 1 can detect areas of the surface to be cleaned and send the detected information to the processor. The processor may analyze the detected information to determine the properties of each region of the surface to be cleaned and adjust the cleaning operation based on the properties of each region.

For example, the detection assembly may include an ultrasonic sensor and a camera. Under the driving of the moving component 110, in the moving process of the scene to be cleaned, the cleaning device 1 can detect that a silk fabric area such as a carpet exists in front of the moving direction through the ultrasonic sensor of the detecting component, and can also detect that a short step exists in the area in front of the moving direction through the camera of the detecting component.

The cleaning mechanism 200 is used to clean a surface to be cleaned. As shown in fig. 4, the cleaning mechanism 200 may have a raised state and a lowered state. During cleaning, the cleaning mechanism 200 may be in a lowered state, and the cleaning mechanism 200 may be in contact with the surface to be cleaned and then apply pressure and relatively move with the surface to be cleaned to effect cleaning of the surface to be cleaned. The cleaning mechanism 200 may be in a raised state while the cleaning activity is stopped. For example, if the cleaning mechanism 200 is a wet mop, the cleaning device 1 may be in a raised state while passing over a region of silk fabric such as carpets, or while the cleaning device 1 is climbing a short step.

As shown in fig. 5 to 7, the lifting assembly 400 is disposed on the apparatus body 100, and includes a first driving mechanism 410 and at least two first transmission mechanisms 420. Each cleaning mechanism 200 is at least correspondingly connected to one first transmission mechanism 420, and the first driving mechanism 410 is used for driving at least two first transmission mechanisms 420 to move so as to drive at least two cleaning mechanisms 200 to perform lifting movement, so that at least two cleaning mechanisms 200 are close to or far from the bottom of the device main body 100.

The cleaning device 1 can drive the cleaning mechanism 200 to perform lifting motion through the lifting assembly 400, so as to control the cleaning mechanism 200 to be in a lifting state or a descending state. For example, the first driving mechanism 410 may output a rotational motion, and the first transmission mechanism 420 may convert the rotational motion into a reciprocating linear motion, thereby driving the cleaning mechanism 200 to perform a lifting motion.

The first driving mechanism 410 can drive the at least two first transmission mechanisms 420 to move at the same time, so that the at least two cleaning mechanisms 200 can be driven to move up and down at the same time, and the at least two cleaning mechanisms 200 are in an ascending state or a descending state at the same time. When the first driving mechanism 410 rotates, at least two first transmission mechanisms 420 move simultaneously. When the first driving mechanism 410 stops rotating, at least two first transmission mechanisms 420 stop simultaneously.

Through the equipment main body 100, at least two cleaning mechanism 200 set up in the bottom of equipment main body 100, lifting unit 400 sets up in equipment main body 100, including first actuating mechanism 410 and at least two first drive mechanism 420, every cleaning mechanism 200 is corresponding at least to be connected a first drive mechanism 420, first actuating mechanism 410 is used for driving at least two first drive mechanism 420 motions, in order to drive at least two cleaning mechanism 200 and carry out lifting movement, and then make at least two cleaning mechanism 200 be close to or keep away from the bottom of equipment main body 100, can adjust the position of cleaning mechanism 200 in the lifting direction in a flexible way according to the application scene, realize that at least two cleaning mechanism 200 carry out lifting movement in step, satisfy the diversified cleaning demand of different cleaning scenes, can increase the application scene of cleaning equipment 1.

Further, the cleaning apparatus 1 includes an apparatus main body 100, two cleaning mechanisms 200, and a lifting assembly 400. Two cleaning mechanisms 200 are provided at a distance from each other at the bottom of the apparatus main body 100. The lifting assembly 400 includes a first drive mechanism 410 and two first transmission mechanisms 420. The two first transmission mechanisms 420 are arranged at intervals. Each cleaning mechanism 200 is correspondingly connected with one first transmission mechanism 420 in a transmission way, and the first driving mechanism 410 is used for driving the two first transmission mechanisms 420 to move so as to drive the two cleaning mechanisms 200 to perform lifting movement, so that the two cleaning mechanisms 200 are close to or far away from the bottom of the equipment main body 100.

In some embodiments, the number of cleaning mechanisms 200 may also be 3 or 4.

Optionally, the lifting assembly 400 includes a connecting member 430 connected to the at least two cleaning mechanisms 200, and the at least two first transmission mechanisms 420 are respectively connected to the connecting member 430 in a transmission manner, so as to drive the at least two cleaning mechanisms 200 to perform lifting motion synchronously through the connecting member 430.

At least two first driving mechanisms 420 can synchronously output reciprocating linear motion, so that the connecting piece 430 and the cleaning mechanism 200 can be driven to perform lifting motion. The direction approaching or moving away from the bottom of the apparatus main body 100 is set as the direction in which the first transmission mechanism 420 outputs the reciprocating rectilinear motion, and the cleaning mechanism 200 performs the elevating motion approaching or moving away from the bottom of the apparatus main body 100.

In some embodiments, the direction of the lifting motion is a vertical direction. In other embodiments, the direction of the lifting motion is at an angle within 90 degrees of vertical.

Optionally, two cleaning mechanisms are connected to the connector 430. The two first transmission mechanisms 420 are in transmission connection with the connecting piece 430. The connection member 430 may be provided as a symmetrical member. Two sides of the symmetry plane of the connection member 430 may be connected to one cleaning mechanism 200, and the two cleaning mechanisms 200 are symmetrically disposed with the symmetry plane of the connection member 430 as the symmetry plane. Two sides of the symmetry plane of the connecting piece 430 may be connected to one first transmission mechanism 420, and the two first transmission mechanisms 420 are also symmetrically arranged with the symmetry plane of the connecting piece 430 as the symmetry plane.

Optionally, each first transmission mechanism 420 includes a screw 421 and a screw nut 422, the screw nut 422 is relatively fixed to the connecting piece 430, the screw 421 and the screw nut 422 are mutually screwed, the first driving mechanism 410 is in transmission connection with the screw 421, and the first driving mechanism 410 is used for driving the screw 421 to rotate so as to drive the screw nut 422 and the connecting piece 430 to move along the axis direction of the screw 421, and further drive at least two cleaning mechanisms 200 to synchronously perform lifting motion.

A screw-nut pair (not labeled) composed of a screw 421 and a screw nut 422 is a transmission device for realizing the mutual conversion between the rotary motion and the linear motion. The external threads of the lead screw 421 and the internal threads of the lead screw nut 422 can be matched with each other. For the screw 421 and the screw nut 422 screwed to each other, when the screw 421 is set to be fixed in the axial direction and the screw nut 422 is set to be fixed in the circumferential direction, the screw 421 is driven to perform a rotational movement, and the screw nut 422 is movable in the axial direction. When the rotation direction of the screw 421 is changed, the movement direction of the screw nut 422 may also be changed.

The first driving mechanism 410 may output a rotational motion, and the screw 421 and the screw nut 422 may convert the rotational motion into a linear motion, so as to drive the connection member 430 and the cleaning mechanism 200 to perform a lifting motion. Specifically, since the screw nut 422 and the connecting member 430 are relatively fixed, the screw nut 422 can drive the connecting member 430 to move synchronously when moving along the axial direction, and the connecting member 430 can drive the cleaning mechanism 200 to move synchronously.

Alternatively, the connecting member 430 is plate-shaped, two screw nuts 422 are disposed at intervals and fixedly pass through the connecting member 430, and each screw 421 movably passes through the corresponding screw nut 422 along the thickness direction of the connecting member 430. When the screw 421 rotates, the screw nut 422 can drive the connecting member 430 to move along the thickness direction of the connecting member 430.

Alternatively, the connection member 430 may be provided as a symmetrical member, one screw nut 422 may be fixed to each of both sides of the symmetrical surface of the connection member 430, and the two screw nuts 422 and the connection member 430 are symmetrically provided in a common symmetrical surface. The two screw rods 421 are symmetrically arranged by taking the symmetry plane of the connecting piece 430 as the symmetry plane, which is beneficial to avoiding the situation that the screw rods 421 and the screw rod nuts 422 are blocked.

Optionally, each first transmission mechanism 420 includes a screw 421, and the connection member 430 is provided with a threaded hole 431 matching the external thread of the screw 421. The screw 421 is inserted into the threaded hole 431. The first driving mechanism 410 is in transmission connection with the screw 421, and the first driving mechanism 410 is used for driving the screw 421 to rotate so as to drive the connecting piece 430 to move along the axis direction of the screw 421, and further drive the at least two cleaning mechanisms 200 to synchronously perform lifting movement.

The rotation of the connection member 430 is restricted and the movement of the screw 421 in the axial direction is restricted, and when the screw 421 rotates, the connection member 430 can move in the axial direction of the screw 421.

Alternatively, the connection member 430 may be configured as a symmetrical member, and two threaded holes 431 may be disposed on both sides of the symmetrical surface of the connection member 430, and the two threaded holes 431 are symmetrically disposed with respect to the symmetrical surface of the connection member 430.

The first driving mechanism 410 may drive the two screw rods 421 to rotate, so that the connecting member 430 moves along the thickness direction of the connecting member 430, and further drives the at least two cleaning mechanisms 200 to move along the thickness direction of the connecting member 430, i.e. to perform lifting movement.

Alternatively, the first driving mechanism 410 has a first output shaft 411, and the first driving mechanism 410 drives the screw 421 to rotate through the first output shaft 411. Wherein, the axis of the first output shaft 411 is perpendicular to the axis of the screw 421. Further, the axis of the first output shaft 411 is perpendicular to the direction in which the cleaning mechanism 200 performs the lifting movement.

Optionally, the lifting assembly 400 further includes a synchronizing shaft 440, the synchronizing shaft 440 is in transmission connection with each screw 421, and the first driving mechanism 410 is in transmission connection with the synchronizing shaft 440 through a first output shaft 411 to drive the synchronizing shaft 440 to rotate, so as to synchronously drive each screw 421 to rotate through the synchronizing shaft 440. The axis of the synchronizing shaft 440 is parallel to the axis of the first output shaft 411 and perpendicular to the axis of each screw 421.

Optionally, the synchronizing shaft 440 is in driving connection with at least two screw rods 421, and the first output shaft 411 can drive the at least two screw rods 421 to rotate through the synchronizing shaft 440.

Alternatively, each transmission mechanism includes a synchronizing shaft gear 442 and a screw gear 441 which are meshed with each other and have axes perpendicular to each other, the synchronizing shaft gear 442 is fixedly connected coaxially with the synchronizing shaft 440, the screw gear 441 is fixedly connected coaxially with the screw 421, and the synchronizing shaft 440 drives each screw 421 to rotate through the synchronizing shaft gear 442 and the screw gear 441. Further, the screw gear 441 and the synchronizing shaft gear 442 may be bevel gears to satisfy that the axis of the synchronizing shaft 440 is perpendicular to the axis of the screw 421.

Further, two ends of the synchronizing shaft 440 may be respectively fixed with a synchronizing shaft gear 442, and the synchronizing shaft 440 may rotate to drive the two screw rods 421.

In some embodiments, the driving connection between the synchronizing shaft 440 and the two screw rods 421 may be implemented by a worm and gear pair (not shown) to satisfy that the axis of the synchronizing shaft 440 is perpendicular to the axis of the screw rods 421.

Alternatively, the lifting assembly 400 includes an output gear 443 and a transmission gear 452 that are meshed with each other and have axes parallel to each other, the output gear 443 is fixedly connected coaxially with the first output shaft 411, the transmission gear 452 is fixedly connected coaxially with the synchronizing shaft 440, and the first driving mechanism 410 drives the synchronizing shaft 440 to rotate through the output gear 443 and the transmission gear 452. Further, the output gear 443 and the transfer gear 452 may both be cylindrical gears.

During cleaning, at least two cleaning mechanisms 200 may be rotated relative to the surface to be cleaned to perform a cleaning operation.

Alternatively, each cleaning mechanism 200 is rotatably provided with respect to the apparatus main body 100, respectively. The cleaning apparatus 1 includes a second driving mechanism 500 and at least two second transmission mechanisms 600, the at least two second transmission mechanisms 600 are in one-to-one transmission connection with the at least two cleaning mechanisms 200, and the second driving mechanism 500 is in transmission connection with the at least two second transmission mechanisms 600 so as to correspondingly drive the at least two cleaning mechanisms 200 to rotate through the at least two second transmission mechanisms 600.

Optionally, the second driving mechanism 500 has a second output shaft 501 extending towards two opposite sides thereof, one end of the second output shaft 501 is in transmission connection with at least one second transmission mechanism 600, and the other end of the second output shaft 501 is in transmission connection with at least another second transmission mechanism 600. When the second driving mechanism 500 rotates, the two ends of the second output shaft 501 synchronously rotate, and simultaneously drive the two cleaning mechanisms 200 to rotate. When the second driving mechanism 500 is stopped, the two cleaning mechanisms 200 stop rotating at the same time.

Alternatively, the second output shaft 501 of the second drive mechanism 500 may be disposed perpendicular to the rotational axis of the cleaning mechanism 200. The second transmission 600 may have a worm gear pair structure (not shown) and a spur gear pair structure (not shown). The cylindrical gear pair structure may include a second transmission gear 604 and a second output gear 601, where the second transmission gear 604 and the second output gear 601 may be spur gears or helical gears. The worm 603 is fixedly connected with the second output shaft 501 coaxially, the worm wheel 602 is fixedly arranged coaxially with the second transmission gear 604, and the second output gear 601 is fixedly arranged coaxially with the cleaning mechanism 200 and circumferentially. When the second driving mechanism 500 rotates, the second output shaft 501 drives the worm 603 to rotate, the worm 603 drives the worm wheel 602 to rotate at the same time, the second transmission gear 604 rotates synchronously with the worm wheel 602 and drives the second output gear 601 to rotate, and finally the second output gear 601 drives the cleaning mechanism 200 to rotate.

In some embodiments, the second transmission 600 may have a bevel gear pair configuration and a spur gear pair configuration.

Alternatively, the direction in which the two cleaning mechanisms 200 perform the elevating movement may be parallel to the axis direction in which the cleaning mechanisms 200 perform the rotation. The second driving mechanism 500 can still drive the cleaning mechanism 200 to rotate within the stroke range of the cleaning mechanism 200 for lifting movement.

Alternatively, the lifting assembly 400 includes at least two bearings 433, and each cleaning mechanism 200 may be drivingly connected to the connector 430 via one bearing 433. The cleaning mechanism 200 is fixedly connected to the inner ring of the bearing 433, the outer ring of the bearing 433 can be fixed relative to the connecting piece 430, and the cleaning mechanism 200 can rotate relative to the connecting piece 430 through the bearing 433. The bearing 433, the connecting member 430 and the cleaning mechanism 200 are relatively fixed in the axial direction, and the connecting member 430 can drive the cleaning mechanism 200 to perform axial movement, i.e. lifting movement, through the bearing 433.

Optionally, the cleaning apparatus 1 includes at least two brackets 700, at least two brackets 700 are fixedly connected to the apparatus main body 100, at least two cleaning mechanisms 200 are connected to the at least two brackets 700 in a one-to-one correspondence, each cleaning mechanism 200 can relatively move in the lifting direction of the cleaning mechanism 200 with respect to the corresponding bracket 700 and can rotate with respect to the corresponding bracket 700, the first driving mechanism 410 is fixedly supported on the at least one bracket 700, at least two first transmission mechanisms 420 are connected to the at least two brackets 700 in a one-to-one correspondence and can rotatably connect the at least two brackets 700, and at least two second transmission mechanisms 600 are disposed on the at least two brackets 700 in a one-to-one correspondence.

Alternatively, each bracket 700 may include a connection frame 720 and a bracket body 710. The connection frame 720 may be fixedly disposed with the stand main body 710, and the two stand main bodies 710 may be fixedly connected with the apparatus main body 100 through the respective connection frames 720. The holder body 710 may include an upper housing 711 and a lower housing 712, and a holder cavity 713 is formed between the upper housing 711 and the lower housing 712. One side of the upper housing 711 may be fixedly coupled with the coupling frame 720, the other side of the upper housing 711 may be detachably coupled with the lower housing 712, and a bracket cavity 713 may be formed inside the bracket body 710 after the upper housing 711 and the lower housing 712 are coupled.

The worm wheel 602, the worm 603, the second output gear 601, the synchronizing shaft gear 442, and the lead screw gear 441 may be disposed in the corresponding bracket cavity 713. The output gear 443 and the transfer gear 452 may be disposed within one of the carrier cavities 713. For each screw 421, one end thereof is rotatably connected to the connection frame 720 and the other end thereof is rotatably connected to the lower case 712.

In some embodiments, the cleaning apparatus may include a cleaning module (not labeled). The cleaning module includes at least two cleaning mechanisms 200 and a lifting assembly 400. At least two cleaning mechanisms 200 are provided at intervals at the bottom of the apparatus main body 100. The lifting assembly 400 is disposed on the apparatus main body 100, and includes a first driving mechanism 410 and a first transmission mechanism 420.

As shown in fig. 8 to 10, in some embodiments, the first driving mechanism 410 has a first output shaft 411, and the first driving mechanism 410 drives the screw 421 to rotate through the first output shaft 411. The axis of the first output shaft 411 is parallel to the axis of the screw 421. Further, the axis of the first output shaft 411 is parallel to the direction in which the cleaning mechanism 200 performs the lifting movement.

Optionally, the lifting assembly 400 further comprises an output gear 443 coaxially and fixedly connected to the first output shaft 411. Each transmission mechanism comprises a lead screw gear 441 and at least one group of gear sets 470, the lead screw gear 441 is coaxially and fixedly connected to the lead screw 421, the axis of the output gear 443 and the axis of the lead screw gear 441 are parallel to each other, the at least one group of gear sets 470 is meshed between the output gear 443 and the lead screw gear 441, and the axis of the gear sets 470 and the axis of the output gear 443 are parallel to each other.

Alternatively, the gears of gear set 470 may all be cylindrical gears with axes disposed in parallel. The drive connection between the first output shaft 411 and each screw 421 may be satisfied by a set of gear sets 470, respectively.

Alternatively, the number of gears of gear set 470 may be 2, 4, 6, 8, etc.

Alternatively, the first transmission gears 451 are meshed with the output gears 443 in the gear set 470, and the output gears 443 can be meshed with at least two first transmission gears 451 at the same time. As the output gear 443 rotates, at least two of the transfer gears 452 simultaneously rotate. When the transmission gear 452 rotates, the corresponding screw gear 441 also rotates and drives the corresponding screw 421 to rotate.

Alternatively, the cleaning apparatus 1 includes a stand 700, the stand 700 is fixedly connected to the apparatus main body 100, and the two cleaning mechanisms 200 are connected to the stand 700 in one-to-one correspondence. The cleaning mechanism 200 is relatively movable in the lifting direction of the cleaning mechanism 200 with respect to the stand 700, and is rotatable with respect to the stand 700. The first driving mechanism 410 is fixedly supported on the bracket 700, the two first transmission mechanisms 420 are in one-to-one correspondence and are rotatably connected with the bracket 700, and the two second transmission mechanisms 600 are arranged on the bracket 700.

The bracket 700 may include a connection frame 720 and a bracket body 710. The connection frame 720 may be fixedly disposed with the stand body 710, and the stand body 710 may be fixedly connected with the apparatus body 100 through the connection frame 720. The connection member 430 is liftably disposed between the connection frame 720 and the holder body 710.

The holder body 710 may include an upper housing 711 and a lower housing 712, and a holder cavity 713 is formed between the upper housing 711 and the lower housing 712. One side of the upper housing 711 may be fixedly coupled with the coupling frame 720, the other side of the upper housing 711 may be detachably coupled with the lower housing 712, and a bracket cavity 713 may be formed inside the bracket body 710 after the upper housing 711 and the lower housing 712 are coupled.

The worm gear 602, worm 603, second output gear 601, lead screw gear 441, output gear 443, and gear set 470 may all be disposed within the housing cavity 713. For each screw 421, one end thereof is rotatably connected to the connection frame 720 and the other end thereof is rotatably connected to the lower case 712.

As shown in fig. 11 to 13, the cleaning mechanism 200 optionally includes a rotation shaft assembly 220 and a cleaning execution assembly 230. One end of the rotation shaft assembly 220 is detachably connected with the cleaning executing assembly 230, and the other end of the rotation shaft assembly 220 is in transmission connection with the second driving mechanism 500, so as to drive the cleaning executing assembly 230 to rotate relative to the apparatus main body 100 when being driven to rotate.

During the cleaning process, the cleaning performing component 230 may contact the surface to be cleaned and then apply pressure, and relatively move with the surface to be cleaned, so that the surface to be cleaned may be cleaned. The cleaning executing assembly 230 can rotate relative to the surface to be cleaned under the driving of the rotating shaft assembly 220, so as to clean the surface to be cleaned.

The rotation shaft assembly 220 is provided to have elasticity in the direction of the rotation axis thereof so as to be able to bring the cleaning performing assembly 230 to have a telescopic stroke on the rotation axis. During cleaning, the length of the rotation shaft assembly 220 may vary with the change of the surface to be cleaned due to elasticity, so that the cleaning performing assembly 230 maintains a state of being adhered to the surface to be cleaned. For example, if there is a raised portion on the surface to be cleaned, the length of the rotating shaft assembly 220 located on the raised portion becomes shorter. For example, if there is a depression in the surface to be cleaned, the length of the rotating shaft assembly 220 located on the depression becomes longer.

When the rotation shaft assembly 220 is elastically deformed in the rotation shaft direction thereof, the cleaning performing assembly 230 may move along the elastic deformation direction of the rotation shaft assembly 220. When the rotation shaft assembly 220 is deformed and restored in the direction of the rotation axis thereof, the cleaning performing assembly 230 may move along the deformation restoring direction of the rotation shaft assembly 220.

The cleaning apparatus may include two cleaning mechanisms 200. When the surface to be cleaned is a flat floor, the two cleaning mechanisms 200 can perform the same cleaning action on the surface to be cleaned. When the surface to be cleaned is uneven ground with undulation, the cleaning execution assembly 230 of the cleaning mechanism 200 located at different positions on the ground can have different telescopic strokes in the rotation axis direction, so as to better attach to the ground, and achieve better cleaning effect.

Optionally, the cleaning executing assembly 230 includes a cleaning member 232 and a connection seat 233, the cleaning member 232 is connected to one side of the connection seat 233, and one end of the rotating shaft assembly 220 is detachably connected to one side of the connection seat 233 facing away from the cleaning member 232. The cleaning executing assembly 230 may contact the surface to be cleaned through the cleaning member 232, and during the cleaning process, the rotating shaft assembly 220 drives the connecting seat 233 to rotate, and the connecting seat 233 synchronously drives the cleaning member 232 to rotate, so that the cleaning member 232 can clean the surface to be cleaned by rotating relative to the surface to be cleaned.

Alternatively, the cleaning member 232 may comprise a water-absorbent soft material, and the soft material that wets the water-absorbent soft material contacts and rotates relative to the surface to be cleaned during the cleaning process, so as to clean the surface to be cleaned, thereby realizing the mopping function of the cleaning apparatus 1. The cleaning member 232 may be a mop or other means for mopping the floor.

Alternatively, the cleaning mechanism 200 includes a rotational coupling 240, and one end of the rotational shaft assembly 220 is detachably coupled to the cleaning performing assembly 230 through the rotational coupling 240. In some embodiments, the rotational connection 240 may be detachably coupled to both the rotational shaft assembly 220 and the rotational connection 240, thereby enabling detachable coupling of the rotational shaft assembly 220 and the cleaning implement assembly 230. In other embodiments, the rotational coupling 240 may be fixedly coupled with the rotational shaft assembly 220 while being detachably coupled with the cleaning implement assembly 230, thereby enabling the detachable coupling of the rotational shaft assembly 220 and the cleaning implement assembly 230.

In this embodiment, the rotating connection 240 may be fixedly connected with the cleaning performing assembly 230 while being detachably connected with the rotating shaft assembly 220, thereby achieving detachable connection of the rotating shaft assembly 220 and the cleaning performing assembly 230.

Optionally, the rotating connection member 240 is a magnetic member, one end of the rotating shaft assembly 220 has ferromagnetism, the rotating connection member 240 is fixedly disposed on the cleaning execution assembly 230, and one end of the rotating shaft assembly 220 is magnetically connected with the rotating connection member 240. The rotary connector 240 may magnetically attract one end of the rotary shaft assembly 220 to achieve detachable connection with the rotary shaft assembly 220.

The rotary connector 240 is a magnetic member, and can generate a magnetic field to attract ferromagnetic substances such as iron, nickel, cobalt, and the like. The material of one end of the rotation shaft assembly 220 may include a ferromagnetic material such as iron, nickel, cobalt, etc., so as to be attracted by the rotation connector 240. The rotating connection 240 is fixed to the cleaning execution assembly 230, the rotating connection 240 can generate magnetic attraction to the rotating shaft assembly 220, and the rotating shaft assembly 220 can be kept connected with the cleaning execution assembly 230 under the action of the magnetic attraction.

In some embodiments, the rotating connection 240 is a magnetic member, one end of the rotating shaft assembly 220 is provided with another magnetic member, the rotating connection 240 is fixedly disposed on the cleaning execution assembly 230, and the other magnetic member is magnetically connected with the rotating connection 240. The other magnetic member may be fixedly disposed with the rotation shaft assembly 220, while the other magnetic member is attractively connected with the rotation connector 240, so as to detachably connect the rotation connector 240 with the rotation shaft assembly 220. In some embodiments, the other magnetic member may be integrally formed with the rotating shaft assembly 220.

When the separation effect of the external force applied to the rotation shaft assembly 220 and the cleaning execution assembly 230 is greater than the connection effect of the magnetic attraction force, the cleaning execution assembly 230 can be disassembled. The disassembled cleaning execution assembly 230 may still be reconnected to the rotating shaft assembly 220.

Optionally, the rotation shaft assembly 220 is provided with a hall sensor 250 for being triggered by the rotation connector 240 to detect whether the cleaning performing assembly 230 is connected to the rotation shaft assembly 220.

Hall sensor 250 is a magnetic field sensor fabricated based on the hall effect. The hall effect is due to the deflection of charged particles, which are essentially moving, under the action of lorentz forces in a magnetic field, which deflection results in the accumulation of positive and negative charges in the direction of the vertical current and magnetic field when the charged particles (electrons or holes) are confined in a solid material, thus creating an additional transverse electric field.

The rotating link 240 is fixed to the cleaning performing assembly 230 and is capable of generating a magnetic field, and the hall sensor 250 senses the magnetic field generated by the rotating link 240 when the cleaning performing assembly 230 is connected to the rotating shaft assembly 220. The hall sensor 250 may convert the magnetic signal into an electrical signal after sensing the magnetic field and then send the electrical signal to the processor. The processor can determine from the electrical signal that the cleaning implement assembly 230 is in a connected state with the rotating shaft assembly 220.

When the cleaning performing assembly 230 is not connected to the rotating shaft assembly 220, the hall sensor 250 does not sense the magnetic field generated by the rotating connector 240, and the processor does not receive the electric signal corresponding to the magnetic signal, and the processor may send a prompt message to prompt the user that the cleaning performing assembly 230 is not connected to the rotating shaft assembly 220. For example, when the cleaning performing assembly 230 is not mounted or is detached by an external force, the processor may acquire information that the cleaning performing assembly 230 is not connected to the rotating shaft assembly 220 through the detection of the hall sensor 250, and may issue a prompt message. By the detection function of the hall sensor 250 for the connection state of the cleaning performing assembly 230 with the rotation shaft assembly 220, the cleaning apparatus 1 can avoid ineffective cleaning caused by the non-installation of the cleaning performing assembly 230.

Alternatively, the hall sensor 250 may be disposed at an end of the rotation shaft assembly 220 remote from the rotation connector 240 and fixedly disposed with the apparatus body, in which case the hall sensor 250 does not rotate with the rotation shaft assembly 220. Further, the rotation shaft assembly 220 may have ferromagnetic substances such as iron, nickel, cobalt, etc. continuously distributed in the axial direction, and the magnetic signal emitted from the rotation connector 240 may be introduced into the hall sensor 250 through the rotation shaft assembly 220. The ferromagnetic substance facilitates the conduction of magnetic signals, which increases the conduction distance of the emitted magnetic signals from the rotary connection 240.

Alternatively, the cleaning performing assembly 230 is provided with a mounting groove 231, the rotary connector 240 is fixedly disposed in the mounting groove 231, and one end of the rotary shaft assembly 220 is inserted into the mounting groove 231 to be magnetically connected with the rotary connector 240. Further, the cleaning performing assembly 230 includes a connection seat 233. The mounting groove 231 may be disposed in the connection seat 233, and the rotation shaft assembly 220 is inserted into the mounting groove 231 and is relatively fixed to the connection seat 233 by the rotation connector 240.

Alternatively, the shape of the portion of the rotation shaft assembly 220 inserted into the mounting groove 231 matches the shape of the mounting groove 231. The mounting groove 231 can limit the relative displacement of the rotation shaft assembly 220 and the cleaning performing assembly 230 perpendicular to the axial direction. The rotation shaft assembly 220 and the cleaning performing assembly 230 can be relatively fixed in the circumferential direction by the rotation shaft assembly 220 and the mounting groove 231 which are matched, and when the rotation shaft assembly 220 rotates, the cleaning performing assembly 230 can be driven to rotate together.

Alternatively, the rotation shaft assembly 220 includes an elastic member 222, a first connection shaft 223, and a second connection shaft 224. Both ends of the elastic member 222 are connected to the first connection shaft 223 and the second connection shaft 224, respectively. The first connection shaft 223 and the second connection shaft 224 are detachably connected along the rotation axis, the first connection shaft 223 is drivingly connected with the second driving mechanism 500, and the second connection shaft 224 is detachably connected with the cleaning performing assembly 230.

The first connection shaft 223 and the second connection shaft 224 may be fixed relatively in the circumferential direction, and the second driving mechanism 500 may rotate the cleaning performing assembly 230 through the first connection shaft 223 and the second connection shaft 224. Further, the first connecting shaft 223 and the second connecting shaft 224 may be disposed with a central axis, and the central axis coincides with the rotation axis.

Specifically, the second transmission mechanism 600 may be in driving connection with the rotation shaft assembly 220. Further, the second transmission 600 may include a second output gear 601 in driving connection with the rotation shaft assembly 220. The second output gear 601 may rotate to drive the first connecting shaft 223 to rotate. The second output gear 601 may be provided with a square through hole (not labeled) along the axial direction, the square through hole and the second output gear 601 share a central axis, the first connecting shaft 223 may be sleeved on the square through hole, and a part of an outer contour of the first connecting shaft 223 located in the square through hole is matched with the square through hole. The second output gear 601 rotates and drives the first connection shaft 223 to rotate through the square through hole under the driving of the second driving mechanism 500.

Alternatively, a gap may be left between the rotation shaft assembly 220 and the square through hole such that the rotation shaft assembly 220 may move in the axial direction in the square through hole. The rotating shaft assembly 220 has a moving stroke when moving along the axial direction in the square through hole, and in the moving stroke range, part of the outer contour of the rotating shaft assembly 220 located in the square through hole is matched with the square through hole, and the second output gear 601 can drive the rotating shaft assembly 220 to rotate through the square through hole.

The first connecting shaft 223 can synchronously rotate the cleaning executing component 230 through the second connecting shaft 224. Optionally, the other end of the second connection shaft 224 is provided with a connection part 2243, the cleaning performing assembly 230 is provided with a mounting groove 231, the shape of the connection part 2243 is matched with the shape of the mounting groove 231, and the connection part 2243 is detachably disposed in the mounting groove 231. Further, the outer profile of the connection part 2243 and the inner profile of the installation groove 231 are provided in a non-cylindrical shape to restrict the relative rotation of the connection part 2243 and the installation groove 231.

The first connection shaft 223 and the second connection shaft 224 are relatively displaceable in the rotation axis direction by the elastic member 222. The elastic deformation of the rotation shaft assembly 220 is achieved by means of the elastic deformation of the elastic member 222. The elastic member 222 may be a spring, or may be elastic silica gel, elastic rubber, or the like. The elastic member 222 is connected to the first connection shaft 223 and the second connection shaft 224 at both ends thereof in an elastic direction, respectively. When an external force is applied, a relative displacement in an elastic direction is generated between the first connection shaft 223 and the second connection shaft 224, and the elastic member 222 is elastically deformed.

After the elastic member 222 is elastically deformed, the elastic member tends to return to the undeformed state. For example, during cleaning, the elastic member 222 may be in a compressed state, in which the rotation shaft assembly 220 has a tendency to be long, so that the cleaning performing assembly 230 contacts and applies pressure to the surface to be cleaned. As the height of the surface to be cleaned fluctuates, the elastic member 222 is correspondingly deformed, and the length of the rotation shaft assembly 220 is correspondingly changed, so that the cleaning performing assembly 230 can maintain a state of contacting and applying pressure to the surface to be cleaned.

Optionally, the rotating shaft assembly 220 includes a positioning member 225. The positioning member 225 connects the first connection shaft 223 and the second connection shaft 224 for allowing relative displacement of the first connection shaft 223 and the second connection shaft 224 on the rotation axis while restricting relative rotation of the first connection shaft 223 and the second connection shaft 224 in the circumferential direction so that the first connection shaft 223 and the second connection shaft 224 rotate in synchronization.

When the elastic member 222 is in a compressed state, an axial force is applied to the first connecting shaft 223 and the second connecting shaft 224, so that the first connecting shaft 223 and the second connecting shaft 224 have a tendency to be disconnected, and the first connecting shaft 223 and the second connecting shaft 224 can be connected by the positioning member 225 to avoid disconnection of the first connecting shaft 223 and the second connecting shaft 224.

Alternatively, the positioning member 225 may be provided to be fixed relative to both the first connecting shaft 223 and the second connecting shaft 224 in the circumferential direction. When the first connecting shaft 223 rotates, the second connecting shaft 224 can be driven to rotate by the positioning member 225.

Alternatively, one end of the first connecting shaft 223 is provided with a receiving groove 2231 along an axial direction thereof, and one end of the second connecting shaft 224 is movably inserted into the receiving groove 2231. One end of the second connecting shaft 224 inserted into the accommodating groove 2231 can slide in the accommodating groove 2231 along the axial direction, so that the first connecting shaft 223 and the second connecting shaft 224 can generate relative displacement along the axial direction.

Alternatively, the receiving groove 2231 may be a cylindrical hole opened along an axial direction, and a portion of the outer contour of the second connection shaft 224 inserted into the receiving groove 2231 may be configured as a cylinder matched with the receiving groove 2231 to limit the relative displacement of the first connection shaft 223 and the second connection shaft 224 in a direction perpendicular to the axial direction.

The elastic member 222 is accommodated in the accommodating groove 2231, and one end of the elastic member 222 is connected to the bottom of the accommodating groove 2231, and the other end of the elastic member 222 is connected to one end of the second connecting shaft 224. When one end of the second connecting shaft 224 inserted into the accommodating groove 2231 slides in the axial direction in the accommodating groove 2231, the elastic member 222 has different degrees of elastic deformation. The elastic member 222 is accommodated in the accommodating groove 2231, and the accommodating groove 2231 can protect the connection between the elastic member 222 and the first connecting shaft 223 and the second connecting shaft 224.

The outer periphery of one end of the second connecting shaft 224 is provided with a positioning hole 2241, the outer periphery of one end of the first connecting shaft 223 is provided with a strip-shaped hole 2232 which extends along the axial direction of the first connecting shaft and is communicated with the accommodating groove 2231, the positioning piece 225 is inserted into the positioning hole 2241 through the strip-shaped hole 2232, and the positioning piece 225 and the strip-shaped hole 2232 are matched to limit the stroke of the relative displacement of the first connecting shaft 223 and the second connecting shaft 224 on the rotating axis.

The positioning member 225 and the positioning hole 2241 may be engaged with each other, so that the positioning member 225 and the second connection shaft 224 are relatively fixed in the circumferential direction. The bar-shaped hole 2232 and the positioning member 225 may be engaged with each other in the width direction, so that the positioning member 225 and the first connecting shaft 223 are relatively fixed in the circumferential direction. By means of the positioning member 225, the first connecting shaft 223 and the second connecting shaft 224 can be fixed relative to each other in the circumferential direction, and rotated together during cleaning.

The positioning member 225 and the positioning hole 2241 cooperate with each other such that the positioning member 225 and the second connection shaft 224 are relatively fixed in the axial direction. The width of the bar-shaped hole 2232 in the axial direction may be set to be greater than the width of the positioning member 225 in the axial direction so that the positioning member 225 can slide in the bar-shaped hole 2232 in the axial direction. The first connection shaft 223 and the second connection shaft 224 may be relatively displaced in the axial direction while the positioning member 225 slides in the bar-shaped hole 2232. The stroke of the relative displacement of the first connection shaft 223 and the second connection shaft 224 in the axial direction corresponds to the sliding stroke of the positioning member 225 in the bar-shaped hole 2232, and also corresponds to the length variation of the rotation shaft assembly 220 and the telescopic stroke of the cleaning performing assembly 230.

The cleaning mechanism 200 can be in contact with the surface to be cleaned and generate a pressure perpendicular to the contact surface when the rotation shaft assembly 220 is in a compressed state, and the elastic member 222 is in a compressed state with a different distance from the cleaning mechanism 200 to the bottom of the cleaning apparatus 1. The extension and retraction stroke of the cleaning implement assembly 230 may be controlled to a range such that the pressure between the cleaning mechanism 200 and the surface to be cleaned is maintained within a range.

Alternatively, the positioning hole 2241 opened at one end of the second connection shaft 224 may be provided as a through hole. The outer circumference of one end of the first connection shaft 223 may be provided with two bar-shaped holes 2232 extending along the axial direction thereof and communicating with the receiving groove 2231, and the two bar-shaped holes 2232 are opposite and may communicate with each other through the receiving groove 2231. When one end of the second connecting shaft 224 is inserted into the accommodating groove 2231, two ends of the positioning hole 2241 may be respectively connected to one bar-shaped hole 2232, and the positioning member 225 may be simultaneously inserted into the two bar-shaped holes 2232 and the positioning hole 2241. Further, the positioning hole 2241 axis is perpendicular to the second connection shaft 224 axis.

Optionally, one end of the second connecting shaft 224 is provided with a boss portion 2242, and the other end of the elastic member 222 is sleeved on the boss portion 2242 and is connected with the second connecting shaft 224. Alternatively, the other end of the elastic member 222 may abut against a portion of the second connecting shaft 224 other than the boss 2242 when sleeved on the boss 2242. The boss 2242 has a positioning function on the elastic member 222, and can limit the relative displacement of the elastic member 222 and the second connecting shaft 224 in the direction perpendicular to the axis.

In summary, the telescopic movement of the cleaning mechanism 200 of the cleaning apparatus 1 in the lifting direction can be realized in the embodiment, the cleaning mechanism 200 can flexibly adapt to the surface to be cleaned in the cleaning process, the stability and reliability of the cleaning effect are improved, and the synchronous lifting movement of the cleaning mechanisms 200 in the lifting direction is realized through the lifting assembly 400, so that the cleaning apparatus 1 has diversified cleaning actions, and the diversified cleaning requirements of different surfaces to be cleaned can be satisfied.

The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims

1. A cleaning apparatus, comprising:

an apparatus main body;

at least two cleaning mechanisms arranged at the bottom of the equipment main body;

the lifting assembly is arranged on the equipment main body and comprises a first driving mechanism and at least two first transmission mechanisms; each cleaning mechanism is at least correspondingly connected with one first transmission mechanism, and the first driving mechanism is used for driving at least two first transmission mechanisms to move so as to drive at least two cleaning mechanisms to perform lifting movement, and then the at least two cleaning mechanisms are close to or far away from the bottom of the equipment main body.

2. A cleaning device according to claim 1, characterized in that:

the lifting assembly comprises a connecting piece connected with at least two cleaning mechanisms, and at least two first transmission mechanisms are respectively connected with the connecting piece in a transmission way so as to drive at least two cleaning mechanisms to synchronously lift through the connecting piece.

3. A cleaning device according to claim 2, characterized in that:

each first transmission mechanism comprises a screw rod and a screw rod nut, the screw rod nuts are relatively fixed with the connecting piece, the screw rod nuts are mutually screwed, the first driving mechanism is connected with the screw rod in a transmission mode, and the first driving mechanism is used for driving the screw rod to rotate so as to drive the screw rod nuts and the connecting piece to move along the axis direction of the screw rod, and then at least two cleaning mechanisms are driven to synchronously lift.

4. A cleaning device according to claim 2, characterized in that:

each first transmission mechanism comprises a screw rod, and the connecting piece is provided with a threaded hole matched with the external thread of the screw rod; the screw rod penetrates through the threaded hole; the first driving mechanism is in transmission connection with the screw rod, and is used for driving the screw rod to rotate so as to drive the connecting piece to move along the axis direction of the screw rod, and further drive at least two cleaning mechanisms to synchronously lift.

5. A cleaning device according to claim 3 or 4, characterized in that:

the first driving mechanism is provided with a first output shaft, and drives the screw rod to rotate through the first output shaft; the axis of the first output shaft is perpendicular to the axis of the screw rod.

6. The cleaning apparatus of claim 5, wherein:

the lifting assembly further comprises a synchronizing shaft, the synchronizing shaft is in transmission connection with each screw rod, and the first driving mechanism is in transmission connection with the synchronizing shaft through the first output shaft so as to drive the synchronizing shaft to rotate, and further each screw rod is synchronously driven to rotate through the synchronizing shaft;

the axis of the synchronizing shaft is parallel to the axis of the first output shaft and perpendicular to the axis of each screw rod.

7. The cleaning apparatus of claim 6, wherein:

the lifting assembly comprises an output gear and a transmission gear which are meshed with each other and are parallel to each other in axis, the output gear is fixedly connected with the first output shaft in a coaxial way, the transmission gear is fixedly connected with the synchronous shaft in a coaxial way, and the first driving mechanism drives the synchronous shaft to rotate through the output gear and the transmission gear;

each transmission mechanism comprises a synchronizing shaft gear and a screw rod gear which are meshed with each other and are perpendicular to each other in axis, the synchronizing shaft gear is fixedly connected with the synchronizing shaft in a coaxial mode, the screw rod gear is fixedly connected with the screw rod in a coaxial mode, and the synchronizing shaft drives each screw rod to rotate through the synchronizing shaft gear and the screw rod gear.

8. A cleaning device according to claim 3 or 4, characterized in that:

the first driving mechanism is provided with a first output shaft, and drives the screw rod to rotate through the first output shaft; the axis of the first output shaft is parallel to the axis of the screw rod.

9. The cleaning apparatus of claim 8, wherein:

the lifting assembly further comprises an output gear coaxially and fixedly connected to the first output shaft; each transmission mechanism comprises a screw rod gear and at least one group of gear sets, the screw rod gears are coaxially and fixedly connected to the screw rod, the axes of the output gears and the axes of the screw rod gears are parallel to each other, and the at least one group of gear sets are meshed between the output gears and the screw rod gears.

10. A cleaning device according to claim 1, characterized in that:

each cleaning mechanism is rotatably arranged relative to the equipment main body; the cleaning equipment comprises a second driving mechanism and at least two second transmission mechanisms, wherein the at least two second transmission mechanisms are in one-to-one corresponding transmission connection with the at least two cleaning mechanisms, and the second driving mechanism is in transmission connection with the at least two second transmission mechanisms so as to correspondingly drive the at least two cleaning mechanisms to rotate through the at least two second transmission mechanisms.