CN221060561U - Floor sweeping machine - Google Patents

Abstract

The utility model provides a sweeper. The sweeper comprises: a housing; the rotary driving assembly is provided with a first rotating state and a second rotating state, and the rotating direction of the first rotating state is opposite to the rotating direction of the second rotating state; the mop support assembly is provided with a contraction position and an extension position, and when the mop support assembly is in the extension position, the part of the mop support assembly, which extends out of the outer periphery side of the shell, is larger than the part of the mop, which extends out of the outer periphery side of the shell, when the mop support assembly is in the contraction position; the transmission assembly is in driving connection with the mop bracket assembly through the transmission assembly; when the rotary driving assembly is in a first rotation state, the rotary driving assembly drives the transmission assembly to rotate, and the mop support assembly is switched from the extending position to the contracting position. The utility model solves the problem of poor cleaning effect of the sweeping robot on the wall and the ground in the prior art.

Description

Floor sweeping machine

Technical Field

The utility model relates to the technical field of sweeping robots, in particular to a sweeping machine.

Background

The domestic floor sweeping robot has the functions of sweeping and mopping in the market, and when the floor sweeping machine is used for cleaning along the edges, the floor sweeping machine can keep a certain edge distance with the wall edge, so that the area from the machine body to the wall edge cannot be covered by a mop, and the area on the wall edge becomes a dead point for mopping and cleaning effectively. When the existing sweeper drives the cleaning component, one of the main defects is that the swinging structure of the cleaning component is an arc track, the arc track has a long movement path and occupies an inner space; the other is that the driving piece drives the connecting rod to rotate, so that the cleaning component rotates, the connecting rod assembly occupies large internal space, and the connecting rod is easy to impact when being collided with an obstacle during edge cleaning, so that the service life of the connecting rod is influenced.

Therefore, the problem of poor cleaning effect of the sweeping robot on the wall and the ground exists in the prior art.

Disclosure of utility model

The utility model mainly aims to provide a sweeping machine, which aims to solve the problem that a sweeping robot in the prior art has poor cleaning effect on the ground beside a wall.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a sweeper comprising: a housing; the rotary driving assembly is provided with a first rotating state and a second rotating state, and the rotating direction of the first rotating state is opposite to the rotating direction of the second rotating state; the mop support assembly is provided with a contraction position and an extension position, and when the mop support assembly is in the extension position, the part of the mop support assembly, which extends out of the outer periphery side of the shell, is larger than the part of the mop, which extends out of the outer periphery side of the shell, when the mop support assembly is in the contraction position; the transmission assembly is in driving connection with the mop bracket assembly through the transmission assembly; when the rotary driving assembly is in a first rotation state, the rotary driving assembly drives the transmission assembly to rotate, and the transmission assembly drives the mop support assembly to rotate, and the mop support assembly is switched from the extending position to the contracting position.

Further, the mop support assembly is switchable between a retracted position and an extended position when the rotary drive assembly is in the second rotational state.

Further, when the rotary drive assembly is turned off, the transmission assembly and the rotary drive assembly are locked, and the mop support assembly is maintained in the current position.

Further, the transmission assembly comprises a one-way bearing, an inner ring of the one-way bearing is sleeved on the output end of the rotary driving assembly, the mop support assembly is in driving connection with an outer ring of the one-way bearing, and when the rotary driving assembly is in a first rotation state, the rotary driving assembly drives the mop support assembly to move through the one-way bearing; when the rotary driving assembly is in the second rotation state, the output end of the rotary driving assembly can rotate relative to the outer ring of the one-way bearing.

Further, the transmission assembly further comprises a first gear, the first gear is sleeved on the outer ring of the one-way bearing and moves along with the outer ring, and the mop support assembly is provided with a second gear matched with the first gear.

Further, the mop support assembly comprises: the support body is provided with a contraction position and an extension position, the second gear is sleeved on the support body and drives the support body to rotate, and the mop is arranged on one side of the support body far away from the second gear; and the reset piece is at least partially sleeved on the support body, one end of the reset piece is connected with the support body, and the other end of the reset piece is connected with the rotary driving assembly so as to provide reset force for the support body from the contracted position to the extended position.

Further, the bracket body includes: a body part on which the mop is arranged; the connecting sleeve is eccentrically arranged on one side, far away from the mop, of the body part, and the second gear is sleeved on the connecting sleeve.

Further, one of the second gear and the connecting sleeve is provided with at least one clamping protrusion, and the other is provided with at least one clamping groove matched with the clamping protrusion; and/or the height of the connecting sleeve is greater than the height of the second gear; and/or the height of the connecting sleeve is greater than the height of the reset element.

Further, the rotary drive assembly includes: a driving motor; the driving motor is in driving connection with the driving shaft and drives the driving shaft to rotate, and the inner ring of the one-way bearing is sleeved at one end of the driving shaft far away from the driving motor.

Further, the rotary driving assembly further comprises a third gear and a fourth gear which are matched with each other, the third gear is arranged on the driving motor, and the fourth gear is arranged on the driving shaft.

Further, the rotary driving assembly further comprises a housing, the driving motor and the driving shaft are respectively arranged in the housing, at least one part of the mop bracket assembly stretches into the housing, and bearing parts matched with the driving shaft and the mop bracket assembly are respectively arranged in the housing.

Further, when the mop support assembly is switched between the retracted position and the extended position, an angle of greater than 0 degrees exists between the direction of movement of the mop support assembly and the direction of movement of the housing.

Further, the floor sweeper further comprises at least two trigger switches, at least one trigger switch is distributed on the shell corresponding to the extending position and the contracting position of the mop bracket assembly, and the trigger switch is in signal connection with the rotary driving assembly.

By applying the technical scheme of the utility model, the sweeper comprises a shell, a rotary driving assembly, a mop bracket assembly and a transmission assembly. At least one part of the rotary driving assembly is arranged outside the shell, the rotary driving assembly is provided with a first rotary state and a second rotary state, and the rotary direction of the first rotary state is opposite to that of the second rotary state; the mop support assembly has a retracted position and an extended position, wherein a portion of the mop support assembly extending beyond the outer peripheral side of the housing when the mop support assembly is in the extended position is greater than a portion of the mop support assembly extending beyond the outer peripheral side of the housing when the mop support assembly is in the retracted position; the rotary driving assembly is in driving connection with the mop bracket assembly through the transmission assembly; when the rotary driving assembly is in a first rotation state, the rotary driving assembly drives the transmission assembly to rotate, and the transmission assembly drives the mop support assembly to rotate, and the mop support assembly is switched from the extending position to the contracting position.

When the floor sweeper is used, the mop support assembly and the rotary driving assembly are arranged, and the rotary driving assembly can drive the mop support assembly to move between the retracted position and the extended position, so that when the floor sweeper is used for cleaning the wall floor, the mop support assembly on the side, close to the wall, of the floor sweeper can be switched from the retracted position to the extended position under the action of the rotary driving assembly, and at the moment, the part, extending out of the periphery side of the shell, of the mop support assembly is enlarged, namely, the mop of the mop support assembly can extend out of the bottom of the shell and along the periphery of the shell, and the mop of the mop support assembly can protrude out of the shell from the periphery side of the shell, so that the wall floor can be cleaned through the mop of the mop support assembly in the extended position. Therefore, the floor sweeping machine solves the problems that when the floor sweeping machine is used for cleaning along edges, a certain edge distance is kept between the floor sweeping machine and the wall edge, so that the area from the machine body to the wall edge cannot be covered by a mop, and the wall edge area becomes a dead point for mopping floor cleaning and cannot be cleaned effectively in the prior art. Therefore, the floor sweeping machine improves the cleaning effect of the floor sweeping robot on the wall and the floor.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 shows a schematic view of the floor sweeper of the present application with the mop support assembly in a retracted position;

Fig. 2 shows a schematic view of the floor sweeper in an extended position of the mop support assembly of the floor sweeper of the present application;

Fig. 3 is a schematic view showing a positional relationship between a limit groove and an abutment protrusion of the sweeper of fig. 1;

fig. 4 is a schematic view showing a positional relationship between a limit groove and an abutment protrusion of the sweeper of fig. 2;

FIG. 5 shows an exploded view of a sweeper in one embodiment of the present application;

Figure 6 shows an exploded view of the rotary drive assembly, mop support assembly and drive assembly of the sweeper in an embodiment of the present application;

Fig. 7 is a schematic view showing a positional relationship among a driving shaft, a one-way bearing and a first gear of the sweeper according to an embodiment of the present application.

Wherein the above figures include the following reference numerals:

10. A housing; 11. a limit groove; 20. a rotary drive assembly; 21. a driving motor; 22. a drive shaft; 23. a third gear; 24. a fourth gear; 25. a housing; 251. a bearing part; 252. a middle shell; 253. a lower case; 254. an upper case; 30. a mop support assembly; 31. a second gear; 32. a bracket body; 321. a body portion; 322. a connecting sleeve; 323. the abutting bulge; 33. a reset member; 40. a transmission assembly; 41. a one-way bearing; 42. a first gear.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The application provides a floor sweeping machine, which aims to solve the problem that a floor sweeping robot has poor cleaning effect on the ground and the wall in the prior art.

As shown in fig. 1 to 7, the floor sweeper of the present application includes a housing 10, a rotation driving assembly 20, a mop support assembly 30, and a transmission assembly 40. At least a portion of the rotary drive assembly 20 is disposed outside the housing 10, the rotary drive assembly 20 having a first rotational state and a second rotational state, and the rotational direction of the first rotational state and the rotational direction of the second rotational state being opposite; the mop support assembly 30 has a retracted position and an extended position, the portion of the mop support assembly 30 extending beyond the outer peripheral side of the housing 10 when the mop support assembly 30 is in the extended position being greater than the portion of the mop extending beyond the outer peripheral side of the housing 10 when the mop support assembly 30 is in the retracted position; the rotary driving assembly 20 is in driving connection with the mop bracket assembly 30 through a transmission assembly 40; when the rotation driving assembly 20 is in the first rotation state, the rotation driving assembly 20 drives the transmission assembly 40 to rotate, and the transmission assembly 40 drives the mop support assembly 30 to rotate, and the mop support assembly 30 is switched from the extended position to the retracted position.

When the floor sweeper of the present application is used, since the floor sweeper is provided with the mop support assembly 30 and the rotary driving assembly 20, and the rotary driving assembly 20 can drive the mop support assembly 30 to move between the retracted position and the extended position, when the floor sweeper of the present application is used for cleaning a wall floor, the mop support assembly 30 on the side close to the wall can be switched from the retracted position to the extended position by the rotary driving assembly 20, and at this time, the mop of the mop support assembly 30 can extend from the bottom of the casing 10 and along the circumferential direction of the casing 10, so that the mop of the mop support assembly 30 can protrude from the circumferential side of the casing 10, and the wall floor can be cleaned by the mop of the mop support assembly 30 in the extended position. Therefore, the floor sweeping machine solves the problems that when the floor sweeping machine is used for cleaning along edges, a certain edge distance is kept between the floor sweeping machine and the wall edge, so that the area from the machine body to the wall edge cannot be covered by a mop, and the wall edge area becomes a dead point for mopping floor cleaning and cannot be cleaned effectively in the prior art. Therefore, the floor sweeping machine improves the cleaning effect of the floor sweeping robot on the wall and the floor.

It should be noted that, the rotary driving assembly 20 of the present application is disposed outside the bottom surface of the casing 10, and the rotary driving assembly 20 may be disposed outside the casing 10, or a part of the rotary driving assembly may be disposed inside the casing 10, and another part of the rotary driving assembly may extend out of the casing 10 and be connected to the mop support assembly 30.

And, as shown in fig. 1 to 4, in one embodiment of the present application, the floor sweeper has two mop support assemblies 30, and the floor sweeper of the present application may be provided with only one rotary drive assembly 20 and drive only one of the mop support assemblies 30, and at this time, when the rotary drive assembly 20 drives the mop support assemblies 30 to move from the retracted position to the extended position, the driven mop support assembly 30 moves in a direction away from the other mop support assembly 30 which is not driven.

Alternatively, when the mop support assembly 30 is switched between the retracted position and the extended position, an angle of more than 0 degrees exists between the direction of movement of the mop support assembly 30 and the direction of movement of the housing 10. Preferably, the path of movement of the mop support assembly 30 is an arc when the mop support assembly 30 is switched between the retracted and extended positions.

In particular, when the mop support assembly 30 is switched from the retracted position to the extended position, the maximum distance of the outer periphery of the mop support assembly 30 to the centre line of the movement direction of the housing 10 is greater than the maximum distance of the circumferential outer side wall of the housing 10 to the centre line of the movement direction of the housing 10.

In particular, the mop support assembly 30 is switchable between a retracted position and an extended position when the rotary drive assembly 20 is in the second rotational state.

Specifically, when the rotary drive assembly 20 is closed, the transmission assembly 40 and the rotary drive assembly 20 are locked, and the mop support assembly 30 is maintained in the current position.

As shown in fig. 6 and 7, in a specific embodiment of the present application, the transmission assembly 40 includes a unidirectional bearing 41, an inner ring of the unidirectional bearing 41 is sleeved on an output end of the rotation driving assembly 20, the mop support assembly 30 is in driving connection with an outer ring of the unidirectional bearing 41, and when the rotation driving assembly 20 is in a first rotation state, the rotation driving assembly 20 drives the mop support assembly 30 to move through the unidirectional bearing 41; when the rotary drive assembly 20 is in the second rotational state, the output end of the rotary drive assembly 20 is able to rotate relative to the outer race of the one-way bearing 41. Meanwhile, the transmission assembly 40 further comprises a first gear 42, the first gear 42 is sleeved on the outer ring of the unidirectional bearing 41 and moves along with the outer ring, and the mop support assembly 30 is provided with a second gear 31 matched with the first gear 42. Preferably, the mop support assembly 30 comprises a support body 32 and a return 33. The bracket body 32 has a contracted position and an extended position, the second gear 31 is sleeved on the bracket body 32 and drives the bracket body 32 to rotate, and the mop is arranged on one side of the bracket body 32 far away from the second gear 31; at least a portion of the restoring member 33 is sleeved on the support body 32, and one end of the restoring member 33 is connected with the support body 32, and the other end of the restoring member 33 is connected with the rotary driving assembly 20 to provide restoring force for the support body 32 from the retracted position to the extended position. Alternatively, a one-way ratchet may be used instead of the one-way bearing 41.

Specifically, the stand body 32 includes a body portion 321 and a connection sleeve 322, and the mop is disposed on the body portion 321; the connecting sleeve 322 is eccentrically arranged at one side of the body 321 far away from the mop cloth, and the second gear 31 is sleeved on the connecting sleeve 322.

Optionally, an abutment protrusion 323 may be further disposed between the body 321 and the connecting sleeve 322, and the housing 10 is correspondingly provided with a limiting groove 11, and when the mop support assembly 30 moves to the retracted position or the extended position, the abutment protrusion 323 may abut against a different position of the limiting groove 11.

Optionally, one of the second gear 31 and the connecting sleeve 322 has at least one engagement protrusion, and the other has at least one engagement groove that mates with the engagement protrusion. By thus providing the second gear 31, the coupling sleeve 322 can be moved together, and since the coupling sleeve 322 is eccentrically provided on the body portion 321, the holder body 32 can be moved between the extended position and the retracted position when the second gear 31 rotates the coupling sleeve 322.

Optionally, the height of the connecting sleeve 322 is greater than the height of the second gear 31. And, the height of the connection sleeve 322 is greater than the height of the restoring member 33. By this arrangement, the stability of the connection between the coupling sleeve 322 and the second gear 31 and the restoring member 33 can be effectively improved, and the second gear 31 or the restoring member 33 can be prevented from coming off the coupling sleeve 322.

In one embodiment of the present application, the return member 33 is a torsion spring. And, when the mop support assembly 30 moves from the extended position to the retracted position, the torsion spring is twisted and provides a restoring force to the second gear 31, and when the first gear 42 can rotate with the second gear 31, the second gear 31 can drive the first gear 42 to rotate under the action of the restoring force, and at this time, the mop support assembly 30 can move to the extended position.

Alternatively, the rotary driving assembly 20 includes a driving motor 21 and a driving shaft 22, the driving motor 21 is in driving connection with the driving shaft 22 and drives the driving shaft 22 to rotate, and an inner ring of the one-way bearing 41 is sleeved at one end of the driving shaft 22 far away from the driving motor 21. Preferably, the rotary driving assembly 20 further includes a third gear 23 and a fourth gear 24 which are engaged with each other, the third gear 23 being provided on the driving motor 21, the fourth gear 24 being provided on the driving shaft 22. Through such arrangement, the space inside the casing 10 can be more easily laid out, so that not only can the driving motor 21 be ensured to realize the driving of the rotary driving assembly 20 through the mutual cooperation of the third gear 23 and the fourth gear 24, but also the miniaturized design of the sweeper is facilitated.

The driving shaft 22 is provided with a support rib corresponding to the lower end surface of the fourth gear 24, thereby preventing friction between the fourth gear 24 and the single-phase bearing.

It should be noted that the driving motor 21 in the present application can rotate in the forward and reverse directions, so that the rotation driving assembly 20 is switched between the first rotation state and the second rotation state.

Optionally, the rotary driving assembly 20 further comprises a housing 25, the driving motor 21 and the driving shaft 22 are respectively disposed in the housing 25, at least a portion of the mop support assembly 30 extends into the interior of the housing 25, and the interior of the housing 25 is respectively provided with a bearing portion 251 cooperating with the driving shaft 22 and the mop support assembly 30. By this arrangement, stable operation among the first gear 42, the second gear 31, the third gear 23, and the fourth gear 24 can be effectively ensured, and a certain dust-proof effect can also be achieved.

Optionally, the sweeper further comprises at least two trigger switches, at least one trigger switch is arranged on the shell 10 corresponding to the extending position and the contracting position of the mop bracket assembly 30, and the trigger switches are in signal connection with the rotary driving assembly 20.

In the embodiment of fig. 3 and 4, the body 321 is not shown in fig. 3 and 4 for convenience in illustrating the positional relationship between the stopper groove and the abutment protrusion.

In one particular embodiment of the application, the housing 25 is a gear box and the gear box has an upper shell 254, a middle shell 252 and a lower shell 253. The driving motor 21 is fixed on the middle shell of the gear box, the driving motor 21 is provided with a third gear 23, two ends of the driving shaft 22 are respectively connected with the upper shell and the lower shell of the gear box through bearing parts 215, a one-way bearing 41 is arranged on the driving shaft 22, a fourth gear 24 is arranged and fixed on the driving shaft 22, a first gear 42 is arranged on the one-way bearing 41, the inner ring of a second gear 31 is sleeved on a connecting sleeve 322, and anti-rotation ribs, namely clamping protrusions, are arranged in the second gear 31. The connecting sleeve 322 is provided with an anti-rotation groove and a clamping groove. The torsion spring is mounted in the lower housing of the gearbox, the other end of which is fixed to the connecting sleeve 322, and the torsion spring is in an initial state, i.e. a non-torsion state. When the driving motor 21 operates, the third gear 23 rotates in one direction and drives the fourth gear 24 to rotate, the driving shaft 22 rotates along with the fourth gear 24, the driving shaft 22 drives the one-way bearing 41 and the first gear 42 to rotate, at the moment, the first gear 42 drives the second gear 31 to rotate, the mop support assembly 30 can move to the contracted position due to the rotation stopping structure of the connecting sleeve 322 and the second gear 31, the torsion spring is in a torsion state, the shell 10 is provided with a trigger switch, the trigger switch can be an infrared geminate transistor, a Hall switch, a micro switch and the like, when the mop support assembly 30 swings to the contracted position, the trigger switch triggers the driving motor 21 to stop operating at the same time, and after the driving motor 21 is powered off, the third gear 23 is in a fixed state, the mop support assembly 30 is kept at the contracted position and the torsion spring is in the torsion state due to the fact that the one-way bearing 41 only transmits torque unidirectionally. When the wall and floor is required to be cleaned along the edge, the driving motor 21 drives the third gear 23 to rotate in the other direction, the first gear 42 cannot rotate along the driving shaft 22 due to the unidirectional transmission torque characteristic of the unidirectional bearing 41, but is in a state of being free to rotate under the action of external force, the mop rotating and extending assembly moves towards the extending position under the action of the reset force of the torsion spring, after rotating to the extending position, another different trigger switch is triggered, the driving motor 21 stops running, the mop support assembly 30 is kept at the extending position, when the mop collides with an obstacle along the edge, after the mop collides with the object, the mop support assembly 30 is acted by the external force and moves in the direction of moving towards the contracting position, at the moment, the second gear 31 drives the first gear 42 to rotate, at the moment, the driving shaft 22 cannot rotate along the characteristic of the unidirectional bearing 41, impact damage is not caused to the rotating driving assembly 20, at the moment, the mop extending assembly leaves the extending position, the trigger switch is triggered, the driving motor 21 continues to run along the other direction, after the edge is free of the obstacle, the mop support assembly 30 returns to the extending position under the action of the torsion spring, the trigger switch is stopped, and the driving motor 21 stops running.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. the internal structure is compact, and the occupied space is small;

2. The mop bracket assembly 30 can be protected from the impact of external collision by the design of the one-way bearing 41, so that the reliability of the structure is improved, and the service life of the structure is prolonged;

3. The connecting sleeve 322 is provided with an anti-rotation groove, can rotate under the action of the second gear 31, reduces the contact area with the reset piece 33, reduces the friction force between the torsion spring and the connecting sleeve 322 when the torsion spring is twisted, and increases the reliability;

4. When the floor sweeper is used, the mop support assembly and the rotary driving assembly are arranged, and the rotary driving assembly can drive the mop support assembly to move between the retracted position and the extended position, so that when the floor sweeper is used for cleaning the wall floor, the mop support assembly on the side, close to the wall, of the floor sweeper can be switched from the retracted position to the extended position under the action of the rotary driving assembly, and at the moment, the part, extending out of the periphery side of the shell, of the mop support assembly is enlarged, namely, the mop of the mop support assembly can extend out of the bottom of the shell and along the periphery of the shell, and the mop of the mop support assembly can protrude out of the shell from the periphery side of the shell, so that the wall floor can be cleaned through the mop of the mop support assembly in the extended position. Therefore, the floor sweeping machine solves the problems that when the floor sweeping machine is used for cleaning along edges, a certain edge distance is kept between the floor sweeping machine and the wall edge, so that the area from the machine body to the wall edge cannot be covered by a mop, and the wall edge area becomes a dead point for mopping floor cleaning and cannot be cleaned effectively in the prior art. Therefore, the floor sweeping machine improves the cleaning effect of the floor sweeping robot on the wall and the floor.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (13)

1. A sweeper, comprising:

A housing (10);

A rotary drive assembly (20), at least a portion of the rotary drive assembly (20) being disposed outside the housing (10), the rotary drive assembly (20) having a first rotational state and a second rotational state, and the rotational direction of the first rotational state and the rotational direction of the second rotational state being opposite;

A mop support assembly (30), the mop support assembly (30) having a retracted position and an extended position, a portion of the mop support assembly (30) extending beyond the outer peripheral side of the housing (10) when the mop support assembly (30) is in the extended position being larger than a portion of the mop extending beyond the outer peripheral side of the housing (10) when the mop support assembly (30) is in the retracted position;

The transmission assembly (40) is used for driving the rotation driving assembly (20) to be connected with the mop bracket assembly (30) through the transmission assembly (40);

When the rotary driving assembly (20) is in the first rotation state, the rotary driving assembly (20) drives the transmission assembly (40) to rotate, the transmission assembly (40) drives the mop support assembly (30) to rotate, and the mop support assembly (30) is switched from the extending position to the contracting position.

2. The sweeper according to claim 1, characterized in that the mop support assembly (30) is switchable between the retracted position and the extended position when the rotary drive assembly (20) is in the second rotational state.

3. The sweeper according to claim 1, characterized in that when the rotary drive assembly (20) is closed, the transmission assembly (40) and the rotary drive assembly (20) are locked, the mop support assembly (30) being maintained in the current position.

4. The sweeper according to claim 1, characterized in that the transmission assembly (40) comprises a one-way bearing (41), the inner ring of the one-way bearing (41) is sleeved on the output end of the rotary driving assembly (20), the mop support assembly (30) is in driving connection with the outer ring of the one-way bearing (41),

When the rotary driving assembly (20) is in the first rotation state, the rotary driving assembly (20) drives the mop bracket assembly (30) to move through the one-way bearing (41);

When the rotary driving assembly (20) is in the second rotation state, the output end of the rotary driving assembly (20) can rotate relative to the outer ring of the one-way bearing (41).

5. The sweeper according to claim 4, characterized in that the transmission assembly (40) further comprises a first gear (42), the first gear (42) is sleeved on the outer ring of the unidirectional bearing (41) and moves along with the outer ring, and the mop support assembly (30) has a second gear (31) cooperating with the first gear (42).

6. The sweeper according to claim 5, characterized in that said mop support assembly (30) comprises:

The support body (32), the support body (32) has the contraction position and the extension position, the second gear (31) is sleeved on the support body (32) and drives the support body (32) to rotate, and the mop is arranged on one side, far away from the second gear (31), of the support body (32);

The reset piece (33), at least a part of reset piece (33) cover is established on the support body (32), just the one end of reset piece (33) with support body (32) are connected, the other end of reset piece (33) with rotatory drive assembly (20) are connected, in order to provide for support body (32) by shrink position to the restoring force of extension position motion.

7. The sweeper according to claim 6, characterized in that said bracket body (32) comprises:

A body portion (321), the mop being disposed on the body portion (321);

The connecting sleeve (322) is eccentrically arranged on one side, far away from the mop cloth, of the body part (321), and the second gear (31) is sleeved on the connecting sleeve (322).

8. The sweeper of claim 7, wherein,

One of the second gear (31) and the connecting sleeve (322) is provided with at least one clamping protrusion, and the other is provided with at least one clamping groove matched with the clamping protrusion; and/or

-The height of the connecting sleeve (322) is greater than the height of the second gear (31); and/or

The height of the connecting sleeve (322) is greater than the height of the reset element (33).

9. The sweeper according to claim 4, characterized in that said rotary drive assembly (20) comprises:

A drive motor (21);

The driving motor (21) is in driving connection with the driving shaft (22) and drives the driving shaft (22) to rotate, and the inner ring of the one-way bearing (41) is sleeved at one end, far away from the driving motor (21), of the driving shaft (22).

10. The sweeper according to claim 9, characterized in that said rotary drive assembly (20) further comprises a third gear (23) and a fourth gear (24) cooperating with each other, said third gear (23) being arranged on said drive motor (21), said fourth gear (24) being arranged on said drive shaft (22).

11. The sweeper according to claim 9, characterized in that the rotary drive assembly (20) further comprises a housing (25), the drive motor (21) and the drive shaft (22) are arranged in the housing (25), respectively, at least a part of the mop support assembly (30) extends into the interior of the housing (25), and the interior of the housing (25) is provided with bearing parts (251) cooperating with the drive shaft (22) and the mop support assembly (30), respectively.

12. The sweeper according to any of claims 1 to 11, characterized in that when the mop support assembly (30) is switched between the retracted position and the extended position, an angle of more than 0 degrees is present between the direction of movement of the mop support assembly (30) and the direction of movement of the housing (10).

13. The floor sweeper according to any one of claims 1 to 11, characterized in that it further comprises at least two trigger switches, at least one of which is distributed in correspondence of the extended position and the retracted position of the mop support assembly (30) of the housing (10), and which is in signal connection with the rotary drive assembly (20).