CN216702470U - Roller brush mechanism and floor washing machine - Google Patents

Abstract

The utility model belongs to the technical field of intelligent electric appliances, and particularly relates to a rolling brush mechanism and a floor washing machine. Wherein, the round brush mechanism includes shell, round brush and lift drive assembly, and lift drive assembly hangs in midair rope and driving piece including, and the driving piece is used for installing to equipment principal, hangs in midair the both ends of rope and is connected with driving piece and shell respectively, and the driving piece drive hangs in midair the rope and removes the pulling shell and rise or descend to make the shell together go up and down with the round brush. The round brush hangs through the flexible rope that suspends in midair and connects in the equipment main part, and the round brush falls to the ground or when receiving the impact with barrier collision contact, can cushion through suspending rope contraction deformation in midair, and relative equipment main part is floated when shell and round brush can be contacting the barrier to reduce the influence of the impact that round brush or shell received to suspending rope and shell hookup point in midair, improve the shell and suspend in midair the stability of being connected of rope and equipment main part, the round brush lift removal is more reliable and more stable.

Description

Roller brush mechanism and floor washing machine

Technical Field

The utility model belongs to the technical field of intelligent electric appliances, and particularly relates to a rolling brush mechanism and a floor washing machine.

Background

A floor washing machine is a commonly used floor cleaning device that cleans the floor by means of a rolling brush and that completes the cleaning by means of an absorption assembly that recycles the sewage produced by the cleaning into a sewage tank of the device. During the in-service use, the ground needs to cross the barrier, or has the demand of only walking (i.e. idle walking) not clean, generally, in the process of crossing the barrier, the round brush receives the barrier impact, influences the life of round brush, and the round brush contacts with ground during idle walking, also can drag the spot on the round brush to subaerial, pollutes clean ground, so, to the floor cleaning machine, need set up the round brush into elevating system.

In the related technology, the rolling brush is rotatably connected with the floor washing machine main body through a rotating joint matched with a connecting rod mechanism, and then the motor or the cylinder drives the connecting rod mechanism to act so as to control the rolling brush to lift. In the actual motion process, because the round brush itself has certain weight, and the round brush also can produce the impact force to the round brush with the barrier contact when surmounting the obstacle, so, the round brush falls to the ground or receives the extrusion impact with the barrier contact time, can produce synchronous impact to link mechanism and rotation joint, thereby the damage rotation joint, link mechanism connection stability variation, influence the normal elevating movement of round brush, and rotation joint and link mechanism overhaul and maintain the frequency high, scrubber life shortens, user's use experience is difficult to promote.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model mainly aims to provide a rolling brush mechanism and a floor washing machine, and aims to solve the technical problem that when a rolling brush in the prior art falls to the ground or collides with an obstacle, impact damage is generated on a connecting rod structure and a rotating joint of the connecting rod structure, which are connected with a main body of the floor washing machine, so that the connection stability of the connecting rod mechanism is poor, and the normal lifting of the rolling brush is influenced.

The technical scheme adopted by the utility model is as follows: the utility model provides a round brush mechanism, including the shell that is used for movable mounting to equipment main part, the shell is equipped with the round brush chamber, installs the round brush in the round brush chamber, and round brush mechanism still includes the lift drive subassembly, and the lift drive subassembly is including suspending rope and driving piece in midair, and the driving piece is used for installing to equipment main part, and the driving piece is connected with the first end drive that suspends the rope in midair, and the second end that suspends the rope in midair hangs with the shell and is connected, thereby the driving piece drive suspend in midair rope removal and drive the shell and go up and down.

In some embodiments, a suspension loop is provided at the middle of the housing in the axial direction of the roller brush, and the suspension cord is connected to the suspension loop.

In some embodiments, the lifting drive assembly further comprises a pulley for mounting to the apparatus body, the housing and the drive member are disposed at a height lower than the pulley, and the suspension cord is wound around the pulley.

In some embodiments, the lifting drive assembly further comprises a guide piece and a sliding block slidably mounted on the guide piece, the guide piece is used for being mounted on the device main body, the output end of the driving piece and the first end of the suspension rope are both connected with the sliding block, the setting height of the sliding block is lower than that of the pulley, and the driving piece drives the sliding block to move up and down so as to pull the suspension rope to drive the shell to lift.

In some embodiments, the driving member includes a motor and a gear, the sliding block is provided with a rack, the gear is sleeved on a rotating shaft of the motor, and the gear is meshed with the rack.

In some embodiments, the lifting driving assembly comprises two guide members arranged in parallel at intervals, two opposite ends of the sliding block are respectively connected with the two guide members, and the rack is arranged in the middle of the sliding block.

In some embodiments, the suspension cord is a flexible steel cord.

In some embodiments, at least one connecting portion is respectively arranged at two ends of the housing along the length direction, the connecting portions are rotatably connected with support rods, and ends of the support rods, which are far away from the connecting portions, are used for being connected with the device main body.

In some embodiments, two ends of the housing along the length direction are respectively rotatably provided with an auxiliary roller, the auxiliary roller is arranged on one side of the housing facing the driving part, and the lowest point of the auxiliary roller is not lower than the lowest point of the rolling brush.

One or more technical solutions in the rolling brush mechanism provided by the embodiment of the present invention have at least one of the following technical effects: the rolling brush mechanism of the utility model suspends the shell provided with the rolling brush by one end of the suspension rope, when in use, the shell is movably arranged on an equipment body such as a floor washing machine body, and the other end of the suspension rope is connected with the driving piece arranged on the equipment body, the driving piece drives the suspension rope to move, and the suspension rope pulls the shell to ascend or descend relative to the surface to be cleaned, thereby leading the shell and the rolling brush to ascend and descend together. So, the round brush hangs through the flexible rope that suspends in midair and connects in the equipment main part, the round brush falls to the ground or receives when assaulting with barrier collision contact, can cushion through suspending rope shrinkage deformation in midair, form the flexonics between the shell of installing the round brush promptly and the equipment main part, shell and round brush can float relative equipment main part when contacting the barrier, thereby reduce the influence of the impact that round brush or shell received to suspending rope and shell hookup point, improve the shell and suspend rope and equipment main part's stability of being connected in midair, the round brush lift movement is more reliable and more stable.

The other technical scheme of the utility model is as follows: the utility model provides a floor cleaning machine, including floor cleaning machine main part and foretell round brush mechanism, shell movable mounting is in floor cleaning machine main part, and the lifting drive subassembly drive suspends rope removal in midair and drives the shell and goes up and down.

One or more technical schemes in the floor washing machine provided by the embodiment of the utility model at least have one of the following technical effects: the application discloses floor cleaning machine, through using foretell round brush mechanism, shell and round brush hang in the floor cleaning machine main part through hanging in midair the rope, install the shell of round brush and floor cleaning machine main part flexonics, shell and round brush can float in the floor cleaning machine main part relatively when contacting the barrier, thereby reduce the impact that round brush or shell received to hanging in midair the rope and the influence of shell hookup point, round brush lift movement is reliable and stable, equipment failure rate reduces, overhaul and maintenance frequency reduces, the service life extension, user experience can effectively promote.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a rolling brush mechanism according to an embodiment of the present invention;

FIG. 2 is another perspective view of the roll-brush mechanism shown in FIG. 1;

FIG. 3 is a schematic structural view of a housing of the roller brush mechanism shown in FIG. 1;

fig. 4 is a schematic structural view of a lifting drive assembly of the rolling brush mechanism shown in fig. 1.

In the figures, the various figures are mainly marked:

10. a housing; 11. a roller brush cavity; 12. hanging a lug; 13. a connecting portion; 131. a first connecting shaft; 14. a stay bar; 15. an installation part; 16. an auxiliary roller; 161. a roller;

20. rolling and brushing;

30. a lift drive assembly; 31. a suspension cord; 32. a drive member; 321. a motor; 322. a gear; 33. a pulley; 331. a pulley seat; 34. a guide member; 35. a slider; 351. a rack;

100. connecting blocks; 101. and a second connecting shaft.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to fig. 1 to 4 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 4, an embodiment of the present invention provides a brush mechanism adapted to be mounted to a main body of a floor cleaning apparatus, such as a main body of a floor cleaning machine, for washing a surface to be cleaned (such as a floor surface, etc.) with a brush 20 during movement of the main body of the floor cleaning machine.

Specifically, as shown in fig. 1 to 3, the rolling brush mechanism of the present embodiment includes a housing 10 and a rolling brush 20, the housing 10 is provided with a mounting cavity in a rectangular opening shape adapted to the rolling brush 20, the rolling brush 20 is rotatably mounted in the mounting cavity, and the housing 10 is used for being movably mounted to an apparatus main body (not shown) such as a floor cleaning machine main body. In the present embodiment, as shown in fig. 1 and 3, at least one connecting portion 13 is respectively disposed at two opposite ends of the housing 10 along a length direction of the housing 10 (i.e., along an axial direction of the rolling brush 20 shown by an arrow F1 in fig. 1), a stay 14 is rotatably connected to the connecting portion 13, specifically, the stay 14 is pivotally connected to the connecting portion 13 through a first connecting shaft 131, the first connecting shaft 131 is parallel to the axial direction of the rolling brush 20, and one end of the stay 14 away from the connecting portion 13 is used for connecting to the apparatus main body, so that when the rolling brush mechanism of the present embodiment is installed, the stay 14 is connected to the apparatus main body, and the stay 14 is rotatably connected to the connecting portion 13 on the housing 10, so that the housing 10 rotates relative to the apparatus main body with the connecting node as a fulcrum, and the housing 10 can be lifted and lowered along a vertical direction (i.e., a direction shown by an arrow F2 in fig. 1).

In an embodiment, a mounting portion 15 may be provided on the apparatus main body, so that the stay 14 is pivotally connected to the mounting portion 15 through a second connecting shaft 101, and the second connecting shaft 101 is disposed parallel to the first connecting shaft 131, so that the position where the stay 14 is connected to the apparatus main body can also be pivoted relative to the apparatus main body, thereby further improving the flexibility of the rotation of the casing 10 relative to the apparatus main body.

Of course, in some other embodiments, the housing 10 may be movably connected to the device body in other manners, such as sliding connection.

Further, as shown in fig. 1, 2 and 4, in the present embodiment, the above-mentioned rolling brush mechanism further includes a lifting drive assembly 30 for connecting the housing 10 and the apparatus main body so as to drive the housing 10 to move up and down in a direction perpendicular to the axial direction of the rolling brush 20 (i.e., a direction indicated by an arrow F2 in fig. 1) with respect to the apparatus main body. The lifting driving assembly 30 includes a suspension rope 31 and a driving member 32, the driving member 32 is used for being mounted to the device main body, the driving member 32 is connected to a first end of the suspension rope 31, a second end of the suspension rope 31 is connected to the housing 10 in a hanging manner, and the driving member 32 drives the suspension rope 31 to move so as to drive the housing 10 to lift.

During the practical use, install driving piece 32 to the equipment main part, make the shell 10 of hanging in midair 31's second end, driving piece 32 drive hanging in midair 31 upward movement pulling shell 10 rotates for equipment main part to make shell 10 and round brush 20 upwards lifting, thereby make round brush 20 wait to clean the face lifting relatively, on the contrary, need put down round brush 20 to with when waiting to clean the face contact, driving piece 32 drive hanging in midair 31 downward movement make shell 10 and round brush 20 fall back under self action of gravity to with wait to clean the face contact can. Thus, the operation of the driving member 32 is controlled to control the housing 10 and the rolling brush 20 to complete the lifting operation, and the operation is simple and flexible.

According to the rolling brush mechanism provided by the embodiment of the utility model, the shell 10 provided with the rolling brush 20 is suspended through one end of the suspension rope 31, when the rolling brush mechanism is used, the shell 10 is movably arranged on an equipment body such as a floor washing machine body, the other end of the suspension rope 31 is connected with the driving piece 32 arranged on the equipment body, the driving piece 32 drives the suspension rope 31 to move, and the suspension rope 31 pulls the shell 10 to ascend or descend relative to a surface to be cleaned, so that the shell 10 and the rolling brush 20 ascend and descend together. So, the round brush 20 hangs through flexible suspension rope 31 and connects in the equipment main part, the round brush 20 falls to the ground or when receiving the impact with the barrier collision contact, can cushion through suspension rope 31 shrink deformation, form flexible connection between the shell 10 of installing the round brush 20 promptly and the equipment main part, shell 10 and round brush 20 can float relative equipment main part when contacting the barrier, thereby reduce the influence of the impact that the round brush 20 or the shell 10 receive to suspension rope 31 and shell 10 hookup point, improve the stability of being connected of shell 10 and suspension rope 31 and equipment main part, round brush 20 goes up and down to move more reliable and more stable.

In a specific embodiment, as shown in fig. 1, 2 and 4, the suspension rope 31 is a flexible steel wire rope, which has a strong strength, is not easily broken after long-term use, has a higher reliability in use, and has a certain deformation capability, so that a flexible connection between the housing 10 and the device body is ensured, and the suspension rope 31 can be contracted and deformed to buffer when the rolling brush 20 falls to the ground or is in collision contact with an obstacle and is impacted.

Of course, in other embodiments, the suspension rope 31 may be made of other flexible ropes with certain strength, such as fiber ropes, rubber ropes, etc., and the material of the suspension rope 31 is not limited herein.

In some embodiments of the present invention, as shown in fig. 2 and 3, the housing 10 is further connected with auxiliary rollers 16 at both ends in the length direction, and the auxiliary rollers 16 are disposed at a side of the housing 10 facing the driving member 32, that is, facing the main body of the apparatus, specifically, the housing 10 is convexly provided with mounting portions 15 at both ends, the auxiliary rollers 16 are rotatably mounted on the mounting portions 15 by rollers 161, the rollers 161 are disposed parallel to the axial direction of the roller brush 20, and the lowest point of the auxiliary rollers 16 and the lowest point of the roller brush 20 are located on the same plane, or the lowest point of the auxiliary rollers 16 may be slightly higher than the lowest point of the roller brush 20. The lowest point of the rolling brush 20 is a contact point of the rolling brush 20 and the surface to be cleaned when the rolling brush 20 performs the brushing action normally, and correspondingly, the lowest point of the auxiliary roller 16 is a contact point of the auxiliary roller 16 and the surface to be cleaned when the rolling brush 20 performs the brushing action normally.

Thus, when the rolling brush 20 works normally, the auxiliary roller 16 does not interfere with the normal contact brushing of the rolling brush 20, and when the housing 10 is lifted by the suspension rope 31 and lifted upwards, the housing 10 pivots relative to the apparatus body about the first connecting shaft 131, and when the housing 10 rotates to a certain angle, the auxiliary roller 16 contacts with the surface to be cleaned, and serves as a walking roller to ensure that the apparatus body can normally roll on the surface to be cleaned.

In other embodiments, as shown in fig. 2 and 3, the middle of the housing 10 is provided with a hanging lug 12 along the axial direction of the roller brush 20 (i.e., along the direction of arrow F1 in fig. 1), that is, the hanging lug 12 is provided at a position between the two connecting portions 13 of the housing 10, and the suspension cord 31 is connected to the hanging lug 12, that is, the suspension cord 31 is connected to the middle of the housing 10, so that the housing 10 is more balanced in stress.

In the embodiment, a hanging lug 12 is provided at the middle of the casing 10, and the lifting driving assembly 30 includes a hanging rope 31, and the hanging rope 31 is connected to the hanging lug 12 to hang and connect the casing 10 to the apparatus main body.

It is understood that in other embodiments, a plurality of hangers 12 may be disposed at intervals in the middle of the housing 10, and the lifting driving assembly 30 is disposed with a plurality of suspension ropes 31 connected to the plurality of hangers 12 in a one-to-one correspondence manner, that is, a multi-point suspension is formed on the housing 10, the housing 10 is suspended by multiple points of stress, the stress is more uniform, and the lifting is more stable and reliable.

In other embodiments, as shown in fig. 1, 2 and 4, the lifting driving assembly 30 further includes a pulley 33, the pulley 33 is mounted on the main body of the apparatus through the pulley 33, the suspension rope 31 is wound around the pulley 33, and the housing 10 and the driving member 32 are both disposed at a lower height than the pulley 33. The two ends of the suspension rope 31 are connected with the housing 10 and the driving element 32 by bypassing the pulley 33, so that the installation height of the driving element 32 on the equipment main body can be reduced, the installation height of the driving element 32 is not required to be higher than that of the housing 10, the suspension connection of the housing 10 can also be realized, in addition, the pulley 33 is matched with the suspension rope 31 to suspend the housing 10, the acting force for pulling up and lifting the housing 10 can be saved, and the power consumption of the driving element 32 is reduced.

In a specific embodiment, one pulley 33 may be provided for the suspension rope 31 to wind, or two pulleys 33 may be provided for the suspension rope 31 to wind, and the two pulleys 33 may be arranged at equal height intervals, or at intervals of one higher and one lower, only one of the pulleys 33 needs to be close to the housing 10, and the other pulley 33 is close to the driving member 32.

As shown in fig. 2 and 4, in the present embodiment, the two pulleys 33 are arranged at intervals in a direction perpendicular to the axial direction of the roll brush 20 (the direction indicated by an arrow F3 in fig. 1).

In other embodiments, as shown in fig. 1 and fig. 2 and fig. 4, the lifting driving assembly 30 further includes a guide 34 and a sliding block 35 slidably mounted on the guide 34, the guide 34 is used for being mounted to the main body of the apparatus, in this embodiment, the guide 34 is a rod, the guide 34 is mounted on the main body of the apparatus in a vertical direction (in a direction shown by an arrow F2 in fig. 1), and the sliding block 35 is sleeved on the rod and can move up and down along the guide 34. Further, the output end of the driving element 32 and the first end of the suspension rope 31 are both connected to the sliding block 35, and the setting height of the sliding block 35 is lower than the pulley 33, so that the driving element 32 drives the sliding block 35 to move up and down relative to the guiding element 34, and the suspension rope 31 can be pulled to drive the housing 10 to lift.

In this embodiment, as shown in fig. 2 and 4, the lifting driving assembly 30 includes two guiding members 34 disposed in parallel and spaced apart from each other, opposite ends of a sliding block 35 are respectively connected to the two guiding members 34, and the driving member 32 and the suspension rope 31 are both connected to the sliding block 35 at a position between the two guiding members 34. So, two guide 34 can effectively support slider 35 on the one hand, and on the other hand, slider 35 middle part atress both ends and the cooperation of guide 34 are led, remove more steadily smoothly.

In other embodiments, as shown in fig. 2 and 4, the driving member 32 includes a motor 321 and a gear 322, the sliding block 35 is provided with a rack 351 extending along the vertical direction, the gear 322 is sleeved on the rotating shaft of the motor 321, and the gear 322 is engaged with the rack 351. The motor 321 starts the driving gear 322 to rotate forward, so that the sliding block 35 moves downward relative to the guide 34, and the suspension rope 31 is driven to pull the housing 10 and the rolling brush 20 to lift upward; on the contrary, the click driving gear 322 rotates reversely, the slider 35 moves upward relative to the positioning, and the housing 10 and the rolling brush 20 fall back under the self-gravity. The structure is simple, and the lifting operation of the shell 10 is simple.

In the present embodiment, as shown in fig. 2 and 4, the rack gear 351 is provided at a middle position of the slider 35 between the two guide members 34.

In the rolling brush mechanism provided by each of the above embodiments of the present invention, the rolling brush can be suspended and connected to the device main body by the flexible suspension rope, when the rolling brush falls to the ground or collides with an obstacle and is impacted, the rolling brush can be buffered by the contraction and deformation of the suspension rope, that is, the housing on which the rolling brush is mounted and the device main body are flexibly connected to each other, and the housing and the rolling brush can float relative to the device main body when contacting the obstacle, so that the influence of the impact on the rolling brush or the housing on the connection point between the suspension rope and the housing is reduced, the connection stability between the housing and the suspension rope and the device main body is improved, and the lifting and the moving of the rolling brush are more stable and reliable.

Another embodiment of the present invention further provides a floor washing machine (not shown), which includes a floor washing machine main body and the above-mentioned rolling brush mechanism, wherein the housing is movably installed in the floor washing machine main body, and the lifting driving assembly drives the suspension rope to move and drives the housing to lift.

The floor cleaning machine that this embodiment provided, through using foretell round brush mechanism, shell and round brush hang in the floor cleaning machine main part through hanging in midair the rope, install the shell of round brush and floor cleaning machine main part flexonics, shell and round brush can float in the relative floor cleaning machine main part when contacting the barrier, thereby reduce the impact that round brush or shell received to hanging in midair the influence of rope and shell hookup point, round brush lift movement is reliable and stable, equipment failure rate reduces, overhaul and maintenance frequency reduces, the service life extension, user experience can effectively promote.

In addition, the floor washing machine also has other technical effects of the rolling brush mechanism provided by the above embodiments, and the detailed description is omitted here.

In an embodiment, the floor cleaning machine may be a floor cleaning robot, a floor mopping robot, a sweeping and mopping integrated robot, a handheld floor cleaning machine, or the like.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a round brush mechanism, is including the shell that is used for movable mounting to equipment main part, the shell is equipped with the round brush chamber, install the round brush in the round brush chamber, its characterized in that, round brush mechanism still include the lift drive subassembly, the lift drive subassembly is including suspending rope and driving piece in midair, the driving piece be used for installing extremely equipment main part, the driving piece with the first end drive of suspending rope in midair is connected, the second end that suspends the rope in midair with the shell is hung and is connected, thereby the driving piece drive suspend in midair the rope and remove the drive the shell goes up and down.

2. The rolling brush mechanism according to claim 1, wherein a hanging lug is provided at a middle portion of the housing in an axial direction of the rolling brush, and the suspension cord is connected to the hanging lug.

3. The rolling brush mechanism of claim 1, wherein the lifting drive assembly further comprises a pulley for mounting to the device body, the housing and the driving member are disposed at a lower height than the pulley, and the suspension cord is wound around the pulley.

4. The rolling brush mechanism of claim 3, wherein the lifting driving assembly further comprises a guiding member and a sliding block slidably mounted on the guiding member, the guiding member is configured to be mounted on the apparatus main body, the output end of the driving member and the first end of the suspension cord are respectively connected to the sliding block, the sliding block is disposed at a lower height than the sliding block, and the driving member drives the sliding block to move up and down to drive the suspension cord to move so as to drive the housing to lift and lower.

5. The rolling brush mechanism of claim 4, wherein the driving member comprises a motor and a gear, the sliding block is provided with a rack, the gear is sleeved on a rotating shaft of the motor, and the gear is meshed with the rack.

6. The rolling brush mechanism of claim 5, wherein the lifting drive assembly comprises two guide members arranged in parallel at intervals, opposite ends of the sliding block are respectively connected with the two guide members, and the rack is arranged in the middle of the sliding block.

7. The roller brush mechanism according to any one of claims 1 to 6, wherein the suspension rope is a flexible steel wire rope.

8. The rolling brush mechanism according to any one of claims 1 to 6, wherein at least one connecting portion is respectively arranged at two ends of the housing along the length direction, a stay bar is rotatably connected to the connecting portions, and an end portion of the stay bar, which is away from the connecting portions, is used for connecting with the device main body.

9. The rolling brush mechanism according to any one of claims 1 to 6, wherein auxiliary rollers are rotatably mounted at two ends of the housing along the length direction, the auxiliary rollers are disposed at one side of the housing facing the driving member, and the lowest point of the auxiliary rollers is not lower than the lowest point of the rolling brush.

10. A floor washing machine, characterized by, including floor washing machine main part and the round brush mechanism of any claim 1 ~ 9, shell movable mounting in the floor washing machine main part, the lift drive assembly drive suspend in midair the rope removal and drive the shell goes up and down.

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