CN217013903U

CN217013903U - Floor sweeper

Info

Publication number: CN217013903U
Application number: CN202220445531.1U
Authority: CN
Inventors: 张舒良; 柯辉; 祁立刚; 赖德键; 钱晨阳; 黄宏发
Original assignee: Shenzhen 3irobotix Co Ltd
Current assignee: Shenzhen 3irobotix Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-22
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a sweeper, which comprises: the mop cleaning machine comprises a machine body, a cleaning device and a cleaning device, wherein the machine body is provided with a detachable mop module; the double-wheel driving device comprises a driving double-wheel, a first roller and a second roller, wherein the first roller is suitable for being in contact with a placing surface at a first fulcrum and the second roller is suitable for being in contact with the placing surface at a second fulcrum; when the mopping module is mounted on the machine body or the mopping module is detached from the machine body, the projections of the gravity center of the sweeper on the placing surface are located between the first fulcrum and the second fulcrum. According to the sweeper provided by the utility model, the driving double wheels are arranged, so that the problem of gravity center offset after the mopping module is detached from the sweeper body can be avoided, the problem of upwarping of the installation position of the sweeper body and the mopping module is avoided, the mopping module and the sweeper body can be accurately aligned when the mopping module is installed on the sweeper body, the installation difficulty of the mopping module is favorably reduced, and the installation efficiency of the mopping module is improved.

Description

Floor sweeper

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a sweeper.

Background

With the development of science and technology, robots play an increasingly important role in the life of people, especially household robots, which help people to release from heavy household tasks, wherein cleaning robots are widely favored by users due to their wider applicability.

The robot of sweeping the floor has the cleaning unit, and the cleaning unit is used for cleaning ground, but because the cleaning unit easily appears making dirty or appearing the condition that the damage appears in the course of the work, this moment, need change the cleaning unit, but robot among the prior art is when changing the cleaning unit, owing to need earlier lift off the cleaning unit on the robot, the problem that the focus skew appears in the robot that leads to lifting off the cleaning unit, the installation department that leads to the cleaning unit of robot takes place to upwarp the phenomenon, and then when assembling the cleaning unit to the robot, can't pinpoint, therefore, lead to the installation degree of difficulty increase of cleaning unit, the installation effectiveness of cleaning unit has been reduced, there is improved space.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a sweeper, which has a stable whole body state when the mopping module is removed and installed, and is not easy to tip over.

According to the embodiment of the utility model, the sweeper comprises: the mop machine comprises a machine body, a mop head and a mop head, wherein the machine body is provided with a detachable mop module; the double-wheel driving device comprises a driving double-wheel, a first roller and a second roller, wherein the first roller is suitable for being in contact with a placing surface at a first fulcrum, and the second roller is suitable for being in contact with the placing surface at a second fulcrum; when the mopping module is mounted on the machine body or the mopping module is detached from the machine body, the projections of the gravity center of the sweeper on the placing surface are located between the first fulcrum and the second fulcrum.

According to the sweeper provided by the embodiment of the utility model, the driving double wheels are arranged, so that the center of gravity of the mopping module is located between the first fulcrum and the second fulcrum after the mopping module is detached from the sweeper body and when the mopping module is installed on the sweeper body, the problem of center of gravity shift after the mopping module is detached from the sweeper body is conveniently avoided, the problem of upwarp of the installation position of the sweeper body and the mopping module is avoided, and further, when the mopping module is installed on the sweeper body, the mopping module and the sweeper body can be accurately aligned, so that the installation difficulty of the mopping module is favorably reduced, and the installation efficiency of the mopping module is improved.

According to the sweeper provided by the embodiment of the utility model, the first roller and the second roller are sequentially distributed along the running direction of the sweeper body.

According to the sweeper provided by the embodiment of the utility model, the radial dimension of the first roller is the same as that of the second roller.

According to the sweeper provided by the embodiment of the utility model, the driving double wheels are arranged into a plurality of groups, and the plurality of groups of driving double wheels are distributed at intervals in the direction perpendicular to the sweeper body.

According to the sweeper provided by the embodiment of the utility model, the plurality of groups of driving double wheels are arranged oppositely in the direction vertical to the sweeper body.

According to the sweeper disclosed by the embodiment of the utility model, the two driving wheels are arranged into two groups, and the two groups of driving wheels are symmetrically arranged on two sides of the bottom of the sweeper body.

According to some embodiments of the utility model, the sweeper further comprises a driving piece, the first roller and the second roller are both in power connection with the driving piece, and the driving piece is used for driving the first roller and the second roller to synchronously rotate.

According to the sweeper provided by the embodiment of the utility model, the speed reduction transmission gear sets are respectively arranged between the driving piece and the first roller and between the driving piece and the second roller.

According to the sweeper disclosed by the embodiment of the utility model, the sweeper body comprises a machine shell and a mounting shell, the mounting shell is detachably mounted in the machine shell, and the driving double wheels are mounted on the mounting shell; wherein the first roller protrudes outside the housing at the first fulcrum and the second roller protrudes outside the housing at the second fulcrum.

According to the sweeper of some embodiments of the utility model, the mopping module is adapted to contact the placing surface at a third fulcrum, and the first fulcrum, the second fulcrum and the third fulcrum are located in the same plane.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 is a schematic view of a sweeper according to some embodiments of the present invention;

figure 2 is a schematic view (from another perspective) of a sweeper according to some embodiments of the present invention;

FIG. 3 is a schematic diagram of a drive dual wheel according to some embodiments of the present invention;

FIG. 4 is a schematic diagram of the internal structure of a drive dual wheel according to some embodiments of the present invention;

figure 5 is a schematic diagram of a base station of a sweeper, according to some embodiments of the present invention.

Reference numerals are as follows:

a base station 1000 of a sweeper is provided,

the sweeper 100, the operating platform 200, the mounting structure 300,

the mop comprises a machine body 1, a machine shell 11, an installation shell 12, a driving double wheel 2, a first roller 21, a second roller 22, a driving piece 3, a driving gear 31, a first gear set 41, a first driving gear 411, a first driven gear 412, a first rotating shaft 413, a second gear set 42, a second rotating shaft 421, a third gear set 43, a third driving gear 431, a third driven gear 432, a third rotating shaft 433, a fourth gear set 44, a fourth driving gear 441, a fourth driven gear 442, a fourth rotating shaft 443 and a mop module 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

Referring to fig. 1 to 5, a sweeper 100 according to an embodiment of the present invention is described, it should be noted that the sweeper 100 in the present invention is a sweeping robot, and the sweeping robot may be configured as a D-type sweeping robot or a square sweeping robot, etc., preferably, in the present embodiment, the sweeper 100 is configured as a D-type sweeping robot, and the mopping module is disposed at one end of the D-type sweeping robot configured as a plane.

As shown in fig. 1, a sweeper 100 according to an embodiment of the present invention includes: a machine body 1 and a driving double wheel 2.

Organism 1 is equipped with the detachable and drags the module of wiping, and it can be understood that organism 1 structure is D type host computer, and drags the module of wiping and install on organism 1, and preferably, drags the module detachably of wiping and install the structure of installing in D type host computer for planar one end, is convenient for reduce the loading and unloading degree of difficulty of dragging the module of wiping, improves assembly efficiency, and easily the user is to dragging the change of wiping the module.

As shown in fig. 1 and 2, the driving double wheel 2 is installed on the machine body 1, and the driving double wheel 2 is protruded from one side of the machine body 1 facing the placing surface, as the driving double wheel 2 is protruded from the bottom of the machine body to be supported on the placing surface, and as shown in fig. 1 to 4, the driving double wheel 2 includes a first roller 21 and a second roller 22.

The first roller 21 is suitable for contacting with the placing surface at a first pivot point, the second roller 22 is suitable for contacting with the placing surface at a second pivot point, and the projections of the gravity center of the sweeper 100 on the placing surface when the mopping module is mounted on the machine body 1 or the mopping module is detached from the machine body 1 are both positioned between the first pivot point and the second pivot point.

The first fulcrum is a position where the first roller 21 contacts the mounting surface, and the second fulcrum is a position where the second roller 22 contacts the mounting surface.

It can be understood that the placing surface can be the ground contacted by the sweeper 100, so that when the sweeper 100 is placed on the ground, the first roller 21 and the second roller 22 are simultaneously contacted with the ground to separate the sweeper body 1 from the ground, and the stability of the sweeper body 1 can be enhanced, and meanwhile, the sweeper body 1 can be driven to move by the rotation of the first roller 21 and the second roller 22, so that the cleaning work of the sweeper 100 on the ground is completed.

Therefore, when the mopping module is installed on the machine body 1, the first roller 21 and the second roller 22 are simultaneously contacted with the ground, at this time, the projection of the gravity center of the sweeper 100 on the placing surface is located between the first fulcrum and the second fulcrum, so that the stability of the sweeper 100 is convenient to enhance, and when the mopping module is detached from the machine body 1, the first roller 21 and the second roller 22 are simultaneously contacted with the ground, at this time, the projection of the gravity center of the machine body 1 on the placing surface is also located between the first fulcrum and the second fulcrum, so that the machine body 1 is simultaneously supported by the first roller 21 and the second roller 22, the gravity center of the machine body 1 can be prevented from being deviated when the mopping module is detached from the machine body 1, the installation position of the machine body 1 and the mopping module cannot be upwarped, and further, when the mopping module is installed on the machine body 1, the mopping module and the machine body 1 can be accurately aligned, thereby being beneficial to reducing the installation difficulty of the mopping module, the installation efficiency of the mopping module is improved.

According to the sweeper 100 provided by the embodiment of the utility model, the driving double wheels 2 are arranged, so that the center of gravity of the mopping module after being detached from the body 1 and the center of gravity of the mopping module when being mounted on the body 1 are both positioned between the first fulcrum and the second fulcrum, the problem of center of gravity offset after the mopping module is detached from the body 1 is conveniently avoided, the problem of upwarp of the mounting position of the body 1 and the mopping module is avoided, and further, when the mopping module is mounted on the body 1, the mopping module and the body 1 can be accurately aligned, the mounting difficulty of the mopping module is favorably reduced, and the mounting efficiency of the mopping module is improved.

In some embodiments, as shown in fig. 1, the first roller 21 and the second roller 22 are sequentially distributed along the running direction of the machine body 1.

Referring to fig. 1, the operation direction of the machine body 1 is the left-right direction shown in fig. 1, and the first roller 21 and the second roller 22 are sequentially distributed along the left-right direction, so that the first roller 21 and the second roller 22 can drive the machine body 1 to move towards the operation direction at the same time, the operation speed of the sweeper 100 is increased, and the projection of the gravity center of the sweeper 100 on the placement surface falls between the first roller 21 and the second roller 22 when the mopping module is installed on the machine body 1 or when the mopping module is detached from the machine body 1, thereby avoiding the problem of gravity center offset after the mopping module is detached from the machine body 1.

In some embodiments, as shown in fig. 3, the radial dimension of the first roller 21 is the same as the radial dimension of the second roller 22. The processing difficulty of the first roller 21 and the second roller 22 can be reduced, the rotation speeds of the first roller 21 and the second roller 22 can be ensured to be the same, and the rotation synchronism of the first roller 21 and the second roller 22 can be ensured.

In some embodiments, the driving dual wheels 2 are provided in a plurality of groups, and the groups of driving dual wheels 2 are spaced apart in a direction perpendicular to the machine body 1. That is, the number of the driving dual wheels 2 can be flexibly set according to actual requirements, for example, two sets of the driving dual wheels 2 can be provided, or three sets of the driving dual wheels 2 can be provided, or four sets of the driving dual wheels 2 can be provided, which is not limited herein.

Wherein, the spaced apart distribution in the direction of perpendicular to organism 1 of multiunit drive double round 2, and one side of organism 1 orientation face is all located to multiunit drive double round 2, thereby be convenient for play the effect of support through multiunit drive double round 2 to organism 1, with spaced apart organism 1 and ground, and can strengthen organism 1's stability, and simultaneously, make organism 1's motion and the radial perpendicular of drive double round 2, thereby be convenient for can drive organism 1 through the rotation of first gyro wheel 21 and second gyro wheel 22 and remove, thereby accomplish the cleaning work of machine 100 to ground of sweeping the floor.

Further, as shown in fig. 2, a plurality of sets of driving double wheels 2 are oppositely arranged in a direction perpendicular to the machine body 1. Thereby be convenient for play the effect of balanced sweeper 100's dead weight through the multiunit drive double round 2 to setting up, avoid sweeper 100 to appear turning on one side the problem of turning on one side, and then strengthen sweeper 100's motion stability.

Preferably, as shown in fig. 2, the two driving wheels 2 are arranged in two groups, the two driving wheels 2 are symmetrically arranged at two sides of the bottom of the machine body 1, and the two driving wheels 2 are arranged opposite to each other in a direction perpendicular to the machine body 1.

From this, can play the effect of support to organism 1 simultaneously in the both sides of organism 1's bottom through setting up two sets of drive double round 2, and two sets of drive double round 2 can rotate in step in order to drive the motion of machine 100 of sweeping the floor, and simultaneously, 2 symmetric distributions of two sets of drive double round are convenient for play the effect of the dead weight of balanced machine 100 of sweeping the floor, avoid machine 100 of sweeping the floor to appear the problem of turning on one side, and then strengthen machine 100 of sweeping the floor's motion stability.

In some embodiments, the sweeper 100 further includes a drive 3.

As shown in fig. 4, the first roller 21 and the second roller 22 are both in power connection with the driving member 3, and the driving member 3 is used for driving the first roller 21 and the second roller 22 to rotate synchronously. Preferably, the driving member 3 can be constructed as a driving motor, and the output end of the driving motor can be connected with the first roller 21 and the second roller 22 at the same time, thereby being convenient for the driving motor to drive the first roller 21 and the second roller 22 to rotate at the same time, being convenient for ensure the rotation synchronism of the first roller 21 and the second roller 22, and the first roller 21 and the second roller 22 share the same driving member 3, being convenient for reduce the number of the driving member 3, the production cost is reduced, and simultaneously, the integration degree of the driving double wheels 2 is enhanced, thereby realizing the miniaturization and the light weight design of the driving double wheels 2.

As shown in fig. 4, a speed reduction transmission gear set is provided between the driving member 3 and the first roller 21 and between the driving member 3 and the second roller 22, in other words, the driving member 3 and the first roller 21 are in gear transmission, and the driving member 3 and the second roller 22 are in gear transmission.

Specifically, the reduction drive gear set includes a first gear set 41, a second gear set 42, a third gear set 43, and a fourth gear set 44, wherein the first gear set 41, the second gear set 42, the third gear set 43, and the fourth gear set 44 are each provided with two gears, and a radial dimension of one of the two gears is larger than a radial dimension of the other gear.

Further, the first gear set 41, the second gear set 42 and the third gear set 43 are used for transmitting the driving force between the driver 3 and the first roller 21, and the driver 3, the first gear set 41, the second gear set 42, the third gear set 43 and the first roller 21 are sequentially meshed with each other, and at the same time, the first gear set 41, the second gear set 42 and the fourth gear set 44 are used for transmitting the driving force between the driver 3 and the second roller 22. And the driving member 3, the first gear set 41, the second gear set 42, the fourth gear set 44 and the second roller 22 are sequentially meshed with each other.

From this, can shunt the drive power that driving piece 3 produced through setting up speed reduction drive gear group to form two power transmission routes, thereby be convenient for rotate through same driving piece 3 simultaneous control first gyro wheel 21 and second gyro wheel 22, guarantee the pivoted synchronism of first gyro wheel 21 and second gyro wheel 22.

For example, as shown in fig. 4, the first gear set 41 includes a first driving gear 411 and a first driven gear 412, the second gear set 42 includes a second driving gear and a second driven gear, the third gear set 43 includes a third driving gear 431 and a third driven gear 432, and the fourth gear set 44 includes a fourth driving gear 441 and a fourth driven gear 442.

Thus, the arrangement enables the speed reduction transmission gear set to play a role in reducing speed and increasing torque between the driving piece 3 and the driving double wheel 2. In other words, the speed reduction transmission gear set is used for reducing the rotating speed of the driving part 3, so that the driving double wheel 2 can drive the sweeper 100 to operate at a stable speed, the cleaning effect of the sweeper 100 is ensured, meanwhile, the torque of the driving part 3 can be increased through the speed reduction transmission gear set, the driving of the driving double wheel 2 can be realized through a small driving force, the reduction of the energy consumption of the driving double wheel 2 is facilitated, and the use cost of the sweeper 100 is reduced.

It can be understood that, in actual control process, the output shaft cover of driving piece 3 is equipped with drive gear 31, and driving piece 3 is used for driving drive gear 31 to rotate, at this moment, drive gear 31 drives first driving gear 411 and rotates, first driving gear 411 drives first driven gear 412 through first axis of rotation 413 and rotates, first driven gear 412 drives second driving gear (not shown in the figure) and rotates, the second driving gear drives second driven gear through second axis of rotation 421 and rotates, second driven gear drives third driving gear 431 and fourth driving gear 441 simultaneously and rotates, and then form two power transmission routes.

At this time, the first power transmission path is transmitted from the third driving gear 431 to the third driven gear 432 through the third rotating shaft 433 and then transmitted from the third driven gear 432 to the first roller 21, and the second power transmission path is transmitted from the fourth driving gear 441 to the fourth driven gear 442 through the fourth rotating shaft 443 and then transmitted from the fourth driven gear 442 to the second roller 22.

It should be noted that, a radial dimension of the first driving gear 411 is greater than a radial dimension of the first driven gear 412, the first driving gear 411 and the first driven gear 412 are distributed at intervals in an axial direction of the first rotating shaft 413, a radial dimension of the second driving gear is smaller than a radial dimension of the second driven gear, the second driving gear 411 and the second driven gear are distributed at intervals in an axial direction of the second rotating shaft 421, a radial dimension of the third driving gear 431 is greater than a radial dimension of the third driven gear 432, the third driving gear 431 and the third driven gear 432 are distributed at intervals in an axial direction of the third rotating shaft 433, a radial dimension of the fourth driving gear 441 is greater than a radial dimension of the fourth driven gear 442, and the fourth driving gear 441 and the fourth driven gear 442 are distributed at intervals in an axial direction of the fourth rotating shaft 443.

From this, through such setting for the drive power that the transmission gear group that slows down can produce driving piece 3 shunts, in order to form two power transmission routes, thereby be convenient for rotate through same driving piece 3 simultaneous control first gyro wheel 21 and second gyro wheel 22, guarantee the pivoted synchronism of first gyro wheel 21 and second gyro wheel 22.

Meanwhile, the speed reduction transmission gear set can play a role in reducing speed and increasing torque between the driving piece 3 and the driving double wheels 2. In other words, the speed reduction transmission gear set is used for reducing the rotating speed of the driving part 3, so that the driving double wheel 2 can drive the sweeper 100 to operate at a stable speed, the cleaning effect of the sweeper 100 is ensured, meanwhile, the torque of the driving part 3 can be increased through the speed reduction transmission gear set, the driving of the driving double wheel 2 can be realized through a small driving force, the reduction of the energy consumption of the driving double wheel 2 is facilitated, and the use cost of the sweeper 100 is reduced.

In some embodiments, the machine body 1 includes a cabinet 11 and a mounting case 12.

Installation shell 12 detachably installs in casing 11, and drives double round 2 and install in installation shell 12 to make the inner structure of drive double round 2 not directly visible, be convenient for play the effect of protection to drive double round 2 through installation shell 12, and installation shell 12 detachably installs in casing 11, be convenient for reduce the loading and unloading degree of difficulty of installation shell 12, easily change and maintain drive double round 2, reduce cost of maintenance.

The first roller 21 protrudes out of the casing 11 at the first fulcrum, and the second roller 22 protrudes out of the casing 11 at the second fulcrum, it can be understood that the first roller 21 and the second roller 22 protrude out of the casing 11 at the first fulcrum and the second fulcrum respectively, so that the first roller 21 and the second roller 22 are in contact with the placing surface, the machine body 1 is spaced from the placing surface, the first roller 21 and the second roller 22 are convenient to support the machine body 1, and the stability of the machine body 1 is enhanced.

In some embodiments, the scrubbing module is adapted to contact the resting surface at a third fulcrum, the first fulcrum, the second fulcrum and the third fulcrum lying in the same plane.

It should be noted that the dragging and wiping module can be constructed as an integral structure, one side of the dragging and wiping module facing the placing surface is in contact with the placing surface, when the dragging and wiping module is installed in the machine body 1, the third fulcrum is the contact position of the dragging and wiping module and the placing surface, and the third fulcrum is in the same plane as the first fulcrum and the second fulcrum.

That is to say, the mopping module, the first roller 21 and the second roller 22 are simultaneously contacted with the placing surface, so that the mopping module can move relative to the placing surface while the machine body 1 is driven to operate through driving the first roller 21 and the second roller 22 to rotate, thereby completing the cleaning effect of rolling and mopping on the placing surface.

Preferably, the mopping module comprises a water storage cavity, a water outlet flow passage and a roller mop, wherein the water outlet flow passage is used for guiding clean water or cleaning agent in the water storage cavity to the roller mop, so that the clean water or the cleaning agent in the water storage cavity can flow to the roller mop through the water outlet flow passage, a roller mop shaft is arranged in the roller mop, and the roller mop can relatively rotate along the axis of the roller mop shaft to clean the ground.

In some embodiments, a cleaning system for a sweeper is also provided.

As shown in fig. 5, the base station 1000 of the sweeper has an operating platform 200, and the base station 1000 of the sweeper is provided with a mounting structure 300, wherein when the sweeper 100 moves to the operating platform 200, the mounting structure 300 can be used to detach or replace the mopping module 5 of the sweeper 100.

For example, as shown in fig. 5, at least a portion of the operation platform 200 is an inclined surface, so that the sweeper 100 can move onto the operation platform 200 along the inclined surface, and thus the base station 1000 of the sweeper can complete operations such as storage of the sweeper 100, wherein the mounting structure 300 may include a detachment structure of the mopping module 5, a replacement structure of the mopping module 5, a cleaning structure of the mopping module 5, a charging structure of the sweeper 100, and the like, and of course, the mounting structure 300 may also include other structures, which are not limited herein.

Preferably, in the present invention, the mounting structure 300 is a dismounting structure of the sweeping module 5, and when the sweeper 100 moves onto the operating platform 200, the first roller 21 and the second roller 22 respectively contact the operating platform 200 at the first fulcrum and the second fulcrum, so that a projection of the center of gravity of the sweeper 100 on the operating platform 200 is located between the first fulcrum and the second fulcrum, wherein the sweeping modules 5 of the sweeper 100 correspond to the corresponding mounting structures 300 one to one, and the sweeping modules 5 of the sweeper 100 and the corresponding mounting structures 300 are kept at a close horizontal position, so that the mounting structures 300 complete operations such as dismounting or mounting the sweeping modules 5 of the sweeper 100, and the difficulty in operating the sweeping modules 5 of the sweeper 100 by the mounting structures 300 is reduced.

Further, when the installation structure 300 detaches the mopping module 5 of the sweeper 100, at this time, the self weight of the sweeper 100 is reduced, so that the center of gravity of the sweeper 100 is changed, and in the present invention, the driving dual wheels 2 are provided, so that the first roller 21 and the second roller 22 are respectively in contact with the operating platform 200 at the first fulcrum and the second fulcrum, so that the projection of the center of gravity of the sweeper 100 on the operating platform 200 is located between the first fulcrum and the second fulcrum, that is, the sweeper 100 after the change of the center of gravity still maintains a horizontal position close to the corresponding installation structure 300, so that the installation structure 300 completes subsequent operations such as installation and the like on the mopping module 5 of the sweeper 100, and thus the operational difficulty of the installation structure 300 on the mopping module 5 of the sweeper 100 is reduced, and the maintenance of the stability of the center of the sweeper 100 on the operating platform 200 is facilitated.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the utility model, "over," "above," and "on" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A sweeper (100), comprising:

the mop comprises a machine body (1), wherein the machine body (1) is provided with a detachable mopping module (5);

-a driving double wheel (2), said driving double wheel (2) comprising a first roller (21) and a second roller (22), said first roller (21) being adapted to contact the underlying surface at a first fulcrum and said second roller (22) being adapted to contact said underlying surface at a second fulcrum; wherein

When the mopping module (5) is mounted on the machine body (1) or the mopping module (5) is detached from the machine body (1), the projections of the gravity center of the sweeper (100) on the placing surface are located between the first fulcrum and the second fulcrum.

2. The sweeper (100) according to claim 1, wherein the first roller (21) and the second roller (22) are distributed in sequence along the running direction of the machine body (1).

3. The sweeper (100) according to claim 1, characterized in that the radial dimensions of said first roller (21) and of said second roller (22) are the same.

4. The sweeper (100) according to claim 1, wherein the driving double wheels (2) are arranged in a plurality of groups, the groups of driving double wheels (2) being distributed at intervals in a direction perpendicular to the machine body (1).

5. The sweeper (100) according to claim 4, wherein the plurality of sets of driving double wheels (2) are arranged opposite to each other in a direction perpendicular to the machine body (1).

6. The sweeper (100) according to claim 4, wherein the two driving wheels (2) are arranged in two groups, and the two groups of driving wheels (2) are symmetrically arranged at two sides of the bottom of the machine body (1).

7. The sweeper (100) according to any one of claims 1 to 6, further comprising a driving member (3), wherein the first roller (21) and the second roller (22) are both in power connection with the driving member (3), and the driving member (3) is configured to drive the first roller (21) and the second roller (22) to rotate synchronously.

8. The sweeper (100) according to claim 7, wherein a reduction gear train is provided between the drive member (3) and the first roller (21) and between the drive member (3) and the second roller (22).

9. The sweeper (100) according to any one of claims 1-6, wherein the machine body (1) comprises a machine housing (11) and a mounting housing (12), the mounting housing (12) being detachably mounted in the machine housing (11), the driving dual wheel (2) being mounted to the mounting housing (12); wherein

The first roller (21) protrudes outside the cabinet (11) at the first fulcrum, and the second roller (22) protrudes outside the cabinet (11) at the second fulcrum.

10. The sweeper (100) according to any one of claims 1 to 6, wherein said mopping module (5) is adapted to be in contact with said resting surface at a third fulcrum, said first fulcrum, said second fulcrum and said third fulcrum lying in the same plane.