CN112741554A - Cleaning robot - Google Patents

Abstract

The invention discloses a cleaning robot, comprising: a body; a drive device; the control device is electrically connected with the driving device; the fan is electrically connected with the control device; the cleaning device is used for being arranged on the machine body and cleaning the working surface; the cleaning device includes: a support shaft including a first support shaft and a second support shaft; at least the first supporting shaft is provided with a first rolling brush and can be driven by the driving device; when the driving device drives the first supporting shaft to rotate forwards, the first rolling brush is matched and connected with the second supporting shaft; the first rolling brush is in a working position in a working state; when the driving device drives the first supporting shaft to rotate reversely, the first rolling brush is separated from the second supporting shaft, and a separation gap is formed between the first rolling brush and the second supporting shaft; the first roll brush is in a separated position in a cleaned state. The hair cleaner can automatically clean hair on the rolling brush, and has the advantages of simple structure, ingenious design, small size and low cost.

Description

Cleaning robot

Technical Field

The invention relates to the technical field of intelligent robots, in particular to a cleaning robot.

Background

In recent years, with the rapid development of computer technology and artificial intelligence science, intelligent robot technology gradually becomes a hotspot in the field of modern robot research. Among them, one of the most practical forms of the intelligent robot is a sweeping robot.

Floor sweeping robots, also known as automatic cleaners, robotic vacuum cleaners and the like, can automatically complete floor cleaning work in a room by means of certain artificial intelligence. When the sweeping robot works, the rolling brush and the fan are matched to complete sweeping work. Specifically, the soft brush on the rolling brush cleans the garbage on the bottom plate to a garbage box opening or an air duct, and then the fan generates negative pressure to assist in pouring the garbage into the garbage box. During the cleaning process of the robot, hair is often wound on the rolling brush.

In the prior art, the hair on the roller brush is subjected to the following methods:

1. the user adopts the tool to cut and shear the hair. This way of manually breaking the hair off not only is time consuming and laborious, but also results in an unsanitary operating environment, which may even damage the roller brush in case of improper operation.

2. A cutting device is arranged on the base station for hair breaking to remove the hair. The mode needs linkage of the host and the base station and accurate stop, and has complex integral mechanism, high cost and poor feasibility of implementation.

3. A hook which can be inserted into the brush hair of the rolling brush for a certain length is fixed in the cavity of the rolling brush and is used for cleaning hair. However, the bristles are damaged due to continuous friction between the hooks and the bristles.

Furthermore, there may be a prevention of hair tangling on the roller brush by increasing the diameter of the roller brush. However, the current sweeping robot is developed towards a light and thin direction so as to be convenient to enter the bottom of furniture for sweeping, and the rolling brush with the large diameter cannot meet the development direction of the light and thin sweeping robot. Furthermore, even if the diameter of the roller brush is increased, it inevitably causes a problem of tangling for some hairs having a relatively large length.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a cleaning robot which can automatically clean cleaning objects, such as hairs, wound on a rolling brush, and has the advantages of simple structure, ingenious design, small size and low cost.

The above object of the present invention can be achieved by the following technical solutions:

a cleaning robot, comprising: a body; a drive device; the control device is electrically connected with the driving device; the fan is electrically connected with the control device; the cleaning device is arranged on the machine body and used for cleaning a working surface; the cleaning device includes: a support shaft including a first support shaft and a second support shaft; at least the first support shaft is provided with a first rolling brush and can be driven by the driving device; when the driving device drives the first supporting shaft to rotate forwards, the first rolling brush is matched and connected with the second supporting shaft; the first rolling brush is in a working position in a working state; when the driving device drives the first supporting shaft to rotate reversely, the first rolling brush is separated from the second supporting shaft, and a separation gap is formed between the first rolling brush and the second supporting shaft; the first roll brush is in a separated position in a cleaned state.

In a preferred embodiment, the cleaning device further comprises: the unidirectional rotation supporting mechanism is used for limiting the second supporting shaft to only rotate in the positive direction; when the driving device drives the first supporting shaft to rotate forwards, the second supporting shaft and the rolling brush rotate forwards together; when the driving device drives the first supporting shaft to rotate reversely, the second supporting shaft is relatively static under the action of the unidirectional rotation supporting mechanism, so that the second supporting shaft is separated from the first rolling brush to form the separation gap.

In a preferred embodiment, the unidirectional rotation support mechanism includes any one of: one-way needle bearing and ratchet wheel.

In a preferred embodiment, the second support shaft is a solid of revolution as a whole, and includes a support body along a longitudinal direction, and the unidirectional rotation support mechanism is provided outside the support body.

In a preferred embodiment, the first rolling brush extends in a longitudinal direction and has a first end and a second end opposite to each other, and the cleaning apparatus further includes a torque transmission mechanism for transmitting the torque of the first support shaft to the first rolling brush.

In a preferred embodiment, the torque transmitting mechanism includes: the driving piece is arranged on the first rolling brush, the cam groove is arranged on the first supporting shaft, one end of the driving piece extends into the cam groove, and when the first rolling brush is located at the working position, one side, close to the second end, of the cam groove is in contact with the driving piece; when the first rolling brush is located at the separation position, one side, far away from the second end, of the cam groove is in contact with the driving piece.

In a preferred embodiment, an angle is formed between the entire extending direction of the cam groove and the longitudinal direction.

In a preferred embodiment, the first roll brush and the second support shaft are detachably connected by a transmission mechanism including: the first clamping part is arranged at the second end of the first rolling brush, the second clamping part is arranged on the second support shaft and is close to the second end, and when the first rolling brush is in a working position, the first clamping part is matched and connected with the second clamping part; when the first rolling brush is located at the separation position, the first clamping part and the second clamping part are separated.

In a preferred embodiment, the first rolling brush is hollow and columnar as a whole, and the first engaging portion is provided on an inner side close to the first rolling brush; the periphery of the second clamping part is provided with a conical surface, and the sectional area of the conical surface on the side of the first rolling brush gradually decreases.

In a preferred embodiment, the cleaning apparatus further comprises a restoring member disposed between the first support shaft and the first roll brush; when the first rolling brush is converted from the working position to the separation position, the reset piece accumulates elastic potential energy; when the first rolling brush is converted from the separation position to the working position, the reset piece releases elastic potential energy to drive the rolling brush to approach the second supporting shaft.

In a preferred embodiment, a second rolling brush is arranged on the second support shaft, and the first rolling brush and the second rolling brush are opposite in rotation direction.

In a preferred embodiment, when the first support shaft rotates in the forward direction, a receiving groove is formed between the first rolling brush and the second rolling brush, the cleaning object on the first rolling brush can move in the direction from the first end to the second end, and the cleaning object on the second rolling brush can move in the reverse direction and all enter the receiving groove.

In a preferred embodiment, the first support shaft is formed with a first stopper portion at a first end near the first roll brush; a certain distance for forming the separation gap is preset between the first end and the first limiting part; when the first rolling brush is located at the separation position, the first end of the first rolling brush is abutted against the first limiting part.

In a preferred embodiment, the second supporting shaft includes a second limiting portion, a receiving groove is formed between the second end of the first roller brush and the second limiting portion, and when the driving device drives the first supporting shaft to rotate in the forward direction, the cleaning objects on the first roller brush can move in the direction from the first end to the second end and are stacked in the receiving groove.

In a preferred embodiment, the cleaning robot further includes: the detection device is electrically connected with the control device and is used for identifying the winding condition of the cleaning objects on the first rolling brush and/or the second rolling brush; the fan can at least form negative pressure in the area covering the first rolling brush and/or the second rolling brush, when the control device determines that the cleaning object is wound based on the detection signal of the detection device, the control device controls the driving device to change the running direction of the first supporting shaft, and the cleaning object at the separation gap is sucked away by the negative pressure generated by the fan.

In a preferred embodiment, the driving means comprises a motor, and the detecting means comprises one or more of the following in combination: the motor control device comprises a detection piece capable of detecting the motor operation parameters and a detection module capable of receiving a user control instruction.

In a preferred embodiment, the fan is capable of generating a negative pressure at least in an area covering the first rolling brush and/or the second rolling brush, and the control device is capable of controlling the drive device to change the operating direction of the first support shaft according to predetermined parameters, and the negative pressure generated by the fan sucks the cleaning material at the separation gap away.

In a preferred embodiment, the predetermined parameter comprises any one or a combination of the following: cleaning time, cleaning area.

Advantageous effects

The cleaning robot provided in the embodiments of the present application is provided with a cleaning device which is a separable roller brush cleaning device, and when cleaning objects (e.g., hairs) are entangled, the roller brush is separated from the second support shaft (or the second support shaft provided with the second roller brush), forming a separation gap, so that the hairs can be sucked through the separation gap.

Specifically, when the rolling brush rotates forwards, the rolling brush is driven by the first supporting shaft and drives the second supporting shaft to rotate together through the transmission mechanism, and a cleaning task is executed. At this time, since the first cleaning portion provided on the roller brush has a single rotation direction, the entangled hairs move to one side and are accumulated in the receiving groove between the roller brush and the second support shaft (or the second roller brush). When the rolling brush needs to remove hairs, the rolling brush can be reversed.

When the roll brush is reversed, the roll brush has a tendency to stop rotating, since the second support shaft can be restrained from rotating by, for example, the unidirectional rotation support mechanism, while the first support shaft is still largely rotated by the driving of the motor. Therefore, the rolling brush and the first support shaft rotate relatively, the rolling brush is forced to move towards the left side under the action of the torque transmission mechanism, the transmission mechanism between the rolling brush and the second support shaft is disengaged, and the rolling brush is separated from the second support shaft. The hair is drawn along the second support shaft through the separation gap by the fan.

On the whole, be provided with this cleaning device's cleaning machines people can clear up the hair on the round brush automatically, and simple structure, design benefit, and the size is little, and is with low costs.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a schematic view of a cleaning robot provided in one embodiment of the present application;

FIG. 2 is a schematic structural diagram of a cleaning robot cleaning device according to an embodiment of the present disclosure, in which a roller brush is in a forward rotation state;

FIG. 3 is a schematic structural view of a cleaning robot cleaning device provided in FIG. 2 with a roller brush in a reverse rotation state;

FIG. 4 is a schematic structural diagram of a cleaning robot cleaning device according to another embodiment of the present disclosure, in which a roller brush is in a forward rotation state;

fig. 5 is a schematic structural view of the cleaning robot cleaning device provided in fig. 4 in a state where the roll brush is rotated in a reverse direction.

Description of reference numerals:

1. a body; 11. a first support shaft; 110. a cam slot; 13. a drive member; 111. a first limiting part; 112. a first engaging portion; 2. rolling and brushing; 21. a first rolling brush; 22. a second rolling brush; 220. a core bar; 12. a second support shaft; 120. a support body; 121. a second engaging portion; 122. a second limiting part; 3. a reset member; 4. a unidirectional rotation support mechanism; 5. an accommodating groove; 6. separating the gap; 7. a control device; 8. an electric motor.

Detailed Description

The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application provides a cleaning machines people in this specification, for prior art, through improving cleaning device, can clear up the clearance on the round brush automatically, for example hair, and simple structure, design benefit, the size is little, and is with low costs.

Referring to fig. 1, a cleaning robot may generally include: abody 1; a drive device; the control device 7 is electrically connected with the driving device; the fan is electrically connected with the control device 7; and the cleaning device is arranged on thecleaning robot body 1 and used for cleaning the working surface. Wherein the driving means may include: a motor 8 for providing a rotational force, a reduction gear box for reducing the rotational force (i.e., the rotational speed) of the motor 8 to a predetermined speed output, and the like.

The cleaning device in the cleaning robot can be applied to the cleaning robot, and certainly does not exclude that the cleaning device can be applied to other applicable scenes, such as a large-scale garbage sweeper and the like. In the application, the cleaning device is mainly applied to the implementation scene of the cleaning robot for key explanation, and other implementable scenes can be referred to the application by analogy, and are not repeated herein.

In the embodiment of the application, the cleaning device of the cleaning robot is improved. Referring to fig. 2 to 3, a cleaning device of a cleaning robot provided in an embodiment of the present disclosure will be described in detail. The cleaning device may include: support shafts including afirst support shaft 11 and a second support shaft 12; at least thefirst support shaft 11 is provided with a first rollingbrush 21, and at least thefirst support shaft 11 can be driven by the driving device; when the driving device drives the first supportingshaft 11 to rotate in the forward direction, the first rollingbrush 21 is matched and connected with the second supporting shaft 12; the first rollingbrush 21 is in a working position in a working state; when the driving device drives the first supportingshaft 11 to rotate reversely, the first rollingbrush 21 is separated from the second supporting shaft 12, and a separation gap is formed between the first rollingbrush 21 and the second supporting shaft; thefirst roll brush 21 is in the separated position in the cleaned state.

In this embodiment, the cleaning apparatus mainly includes: the device comprises afirst support shaft 11 which can be driven by a motor to rotate, a first rollingbrush 21 which is sleeved outside thefirst support shaft 11 and receives torque transmitted by thefirst support shaft 11 through a torque transmission mechanism, and a second support shaft 12 which is arranged on one side of the first rollingbrush 21 and is matched and connected with the first rollingbrush 21 through a transmission mechanism. Further, it may further include: the unidirectional rotation support mechanism 4 supports the second support shaft 12 on thebody 1. That is, the detachable connection of the first roll brush to the second support shaft 12 can be achieved by the unidirectional rotation support mechanism 4, and the fitting relationship of thefirst roll brush 21 to the second support shaft 12.

When thefirst support shaft 11 rotates in the forward direction, the second support shaft 12 rotates in the forward direction together with the first rollingbrush 21; thefirst roll brush 21 can perform a cleaning task. When the first supportingshaft 11 rotates reversely, the second supporting shaft 12 is relatively stationary under the action of the unidirectional rotation supporting mechanism 4, and the first rollingbrush 21 is separated from the second supporting shaft 12 after rotating relatively with the first supportingshaft 11 under the action of the second supporting shaft 12, so as to form aseparation gap 6. Under the adsorption action of the fan, the hair wound on the first rollingbrush 21 can enter the preset accommodating cavity after being adsorbed by the fan from theseparation gap 6.

In the present embodiment, the first rollingbrush 21 is in contact with the floor surface during rolling, and thus the floor surface can be effectively cleaned. Thefirst roll brush 21 may have a hollow cylindrical shape as a whole. The hollow portion is intended primarily to cooperate axially with thefirst support shaft 11. Thefirst roll brush 21 extends in the longitudinal direction, and has opposite first and second ends. During the rolling, the hairs wound around the surface of the first rollingbrush 21 can move in the direction from the first end to the second end.

In one embodiment, the first rollingbrush 21 is provided with a first cleaning portion on a surface thereof, and the first cleaning portion has a single rotation direction, so that the hair can move in a direction from the first end to the second end. Specifically, a first cleaning portion may be disposed on the surface of the first rollingbrush 21, and the first cleaning portion may be one of a brush, a rubber strip, or a combination of the two. Of course, the surface of the first rollingbrush 21 may be provided with other forms of materials having a cleaning function, and the application is not limited in this respect. When the surface of the first rollingbrush 21 is provided with a brush, a rubber strip, or the like cleaning portion, the first cleaning portion may be formed in a single spiral along the longitudinal direction, thereby ensuring that the hairs wound around the surface of the first rollingbrush 21 can move in the direction from the first end to the second end.

In addition, in another embodiment, thefirst roll brush 21 is formed with a taper from the first end to the second end, and the magnitude of the taper is in a range of 1: 100 to 1: 400. specifically, when the first rollingbrush 21 has a certain small taper from the first end to the second end, that is, the cross-sectional area of the first rollingbrush 21 gradually decreases from the first end to the second end, the hairs wound on the surface of the first rollingbrush 21 can also move toward the second end as a whole.

In the present embodiment, thefirst support shaft 11 is driven by a motor to rotate. Specifically, the motor may output a torque satisfying a requirement to thefirst support shaft 11 through the reduction gear box, so that thefirst support shaft 11 rotates at a certain rotational speed. A first limitingpart 111 is formed at a position of thefirst support shaft 11 close to the first end of the first rollingbrush 21, when thefirst support shaft 11 rotates in the forward direction, the first rollingbrush 21 is at a working position, and a certain distance for forming theseparation gap 6 is preset between the first end and the first limitingpart 111; when thefirst support shaft 11 rotates reversely, the first rollingbrush 21 is at a disconnected position, and the first end abuts against the first limitingportion 111.

Specifically, thefirst stopper 111 may be an annular protrusion having an outer diameter larger than an inner diameter of the first rollingbrush 21. Of course, thefirst stopper 111 may be a local protrusion having a size larger than the inner diameter of the first rollingbrush 21, and may be thefirst stopper 111 as long as the first rollingbrush 21 can be stopped along the longitudinal direction.

A torque transmission mechanism for transmitting the torque of thefirst support shaft 11 to the first rollingbrush 21 is provided between thefirst support shaft 11 and the first rollingbrush 21.

Specifically, the torque transmitting mechanism may include: a drivingmember 13 provided on thefirst roll brush 21, acam groove 110 provided on thefirst support shaft 11, and one end of the drivingmember 13 extending into thecam groove 110. When the first rollingbrush 21 is in the working position, one side of thecam groove 110 close to the second end is in contact with the drivingpiece 13; when the first rollingbrush 21 is in the off position, the side of thecam groove 110 away from the second end is in contact with the drivingmember 13.

The drivingmember 13 may be in the form of a driving rod, one end of which is fixed to the first rollingbrush 21 and the other end of which is a free end and is inserted into thecam groove 110.

The overall extending direction of thecam groove 110 forms a certain angle with the axial direction of the first support shaft 11 (i.e., the longitudinal direction of the first roll brush 21). That is, when the first rollingbrush 21 is in the working position and is converted into the separation position, the driving rod moves along a predetermined track of thecam groove 110, and the entire extending direction of the predetermined track and the longitudinal direction have a certain included angle rather than being parallel, so that when the first rollingbrush 21 is converted from the working position to the separation position, the inclined surface of thecam groove 110 generates an axial component force to the driving member, thereby pushing the first rolling brush away from the second end.

In the present embodiment, the transmission mechanism for transmitting the torque between thefirst roll brush 21 and the second support shaft 12 may include: a firstengaging portion 112 disposed at a second end of thefirst roller brush 21, and a secondengaging portion 121 disposed on the second support shaft 12 and close to the second end, wherein when thefirst roller brush 21 is at the working position, the first engagingportion 112 and the secondengaging portion 121 are engaged; when thefirst roller brush 21 is at the off position, the first engagingportion 112 and the secondengaging portion 121 are separated from each other.

Specifically, the transmission mechanism may be in a spline form, that is, the first engagingportion 112 and the secondengaging portion 121 may be splines, and of course, the transmission mechanism may also be in other forms capable of realizing torque transmission, and only when the motor rotates forward, the first engagingportion 112 and the secondengaging portion 121 are matched to transmit torque forward, and when the motor rotates backward, the first engagingportion 112 and the secondengaging portion 121 can be disengaged in time.

In the present embodiment, the second support shaft 12 is provided at one side of the second end of thefirst roll brush 21. One side of the second supporting shaft 12 receives the torque transmitted from the first rollingbrush 21 through a transmission mechanism, and the other side of the second supporting shaft 12 is provided with a unidirectional rotation supporting mechanism 4, so that the second supporting shaft 12 can only rotate forwards and can not rotate backwards.

Specifically, the second support shaft 12 is a revolving body as a whole, and includes in order along the longitudinal direction: a secondengaging portion 121, a second stopper portion 122, and asupport body 120, wherein the unidirectional rotation support mechanism 4 is provided outside thesupport body 120. The second limiting portion 122 may be an annular protrusion with an outer diameter larger than the inner diameter of the first rollingbrush 21. Of course, the second limiting portion 122 may be a local protrusion having a size larger than the inner diameter of the first rollingbrush 21. The second limiting portion 122 is engaged with the second end of the first rollingbrush 21 to form a hair-accumulatingreceiving slot 5.

In one embodiment, the secondengaging portion 121 has a tapered surface formed on an outer periphery thereof, and the tapered surface has a cross-sectional area gradually decreasing from the second stopper portion 122 toward thefirst roller brush 21. When the secondengaging portion 121 is formed with a tapered surface on the outer periphery thereof, the secondengaging portion 121 serves as a central axis of the receiving space, and when thefirst roller brush 21 is separated from the second supporting shaft 12, the hair is favorably sucked away by the negative pressure generated by the blower.

Further, the first engagingportion 112 is disposed inside near the second end. When the secondengaging portion 121 having the tapered surface is engaged with the built-in first engagingportion 112, both portions can be mechanically positioned accurately and reliably.

Thesupport body 120 is externally provided with the unidirectional rotation support mechanism 4. The unidirectional rotation support mechanism 4 is for restricting the second support shaft 12 to rotate only in the forward direction. That is, when thefirst support shaft 11 is rotated in the forward direction, the second support shaft 12 is rotated in the forward direction together with thefirst roll brush 21; when the first supportingshaft 11 rotates reversely, the second supporting shaft 12 is relatively stationary under the action of the unidirectional rotation supporting mechanism 4, and the first rollingbrush 21 is separated from the second supporting shaft 12 after rotating relatively with the first supportingshaft 11 under the action of the second supporting shaft 12, so as to form aseparation gap 6.

Specifically, the unidirectional rotation support mechanism 4 may include any one of the following: one-way needle bearing and ratchet wheel. Of course, the unidirectional rotation support mechanism 4 may also be in other forms, and the application is not limited in particular. When the unidirectional rotation supporting mechanism is a needle bearing, the unidirectional rotation supporting mechanism can be used as a basic function of a bearing to realize the transition fit of the second supporting shaft 12 and themachine body 1, and can reduce the volume of the bearing and improve the rigidity of the whole shafting.

In one embodiment, the cleaning device may further comprise areset member 3. The restoringmember 3 is disposed between thefirst support shaft 11 and thefirst roll brush 21.

In the present embodiment, the restoringmember 3 is mainly used to provide a restoring force for restoring thefirst roll brush 21 from the off position to the on position. In particular, thereturn member 3 may be in the form of a spring. The restoringmember 3 may be disposed inside thefirst roll brush 21 between thefirst support shaft 11 and the first engagingportion 112. When the first rollingbrush 21 is turned from the working position to the off position, thereset piece 3 accumulates elastic potential energy; when the first rollingbrush 21 is turned from the off position to the working position, thereset member 3 releases the elastic potential energy to drive the first rollingbrush 21 to approach the second support shaft 12.

Referring to fig. 4 and 5, in one embodiment, acore bar 220 is disposed between the secondengaging portion 121 and the second limiting portion 122 of the second supporting shaft 12, a second rollingbrush 22 is sleeved outside thecore bar 220, a second cleaning portion is disposed on a surface of the second rollingbrush 22, and a rotation direction of the second cleaning portion is opposite to a rotation direction of the first cleaning portion.

In the present embodiment, thesecond roll brush 22 can maintain the same tendency of movement as the second support shaft 12. In the case of the second cleaning portion of the second rollingbrush 22, in which the rotation direction of the second cleaning portion is opposite to that of the first cleaning portion, when thefirst support shaft 11 rotates in the forward direction, ahousing groove 5 is formed between the first rollingbrush 21 and the second rollingbrush 22, the hairs on the first rollingbrush 21 can move in the direction from the first end to the second end, and the hairs on the second rollingbrush 22 can move in the reverse direction and both enter thehousing groove 5.

The cleaning device provided in the embodiment of the present application is a hair cleaning device with afirst roller brush 21 that can be separated, and when the hair is twisted, thefirst roller brush 21 is separated from the second support shaft 12 (or the second support shaft 12 provided with the second roller brush 22), and aseparation gap 6 is formed, so that the hair can be sucked through theseparation gap 6.

Specifically, when the first rollingbrush 21 rotates forward, the first rollingbrush 21 is driven by thefirst support shaft 11 and drives the second support shaft 12 to rotate together through the transmission mechanism, so as to perform the cleaning task. At this time, since the first cleaning portion provided in the first rollingbrush 21 has a single rotation direction, the entangled hairs move to the right side and are accumulated in thehousing groove 5 between the first rollingbrush 21 and the second support shaft 12 (or the second rolling brush 22).

When it is desired to remove hairs from the first rollingbrush 21, the first rollingbrush 21 may be reversed.

When the first rollingbrush 21 is required to rotate reversely, the first rollingbrush 21 tends to stop rotating because the second supporting shaft 12 is restricted to rotate by the unidirectional rotation supporting mechanism 4, and the first supportingshaft 11 is still driven by the motor to rotate. Therefore, thefirst roll brush 21 and thefirst support shaft 11 rotate relative to each other, thefirst roll brush 21 is forced to move to the left by thecam groove 110 in the torque transmission mechanism, the first engagingportion 112 of thefirst roll brush 21 is disengaged from the secondengaging portion 121 of the second support shaft 12, and thefirst roll brush 21 is separated from the second support shaft 12. The hair is retracted along the tapered surface of the second support shaft 12 and sucked away by the fan in theseparation gap 6.

In the present specification, the embodiment in which only thesecond roll brush 22 is provided on the second support shaft 12 is not excluded. This embodiment is different from the first embodiment in that: thefirst roll brush 21 on thefirst support shaft 11 is omitted, and in particular, the present application will not be described herein.

Further, as for the way of achieving the separation of thefirst support shaft 11 and the second support shaft 12, except that a unidirectional rotation supporting mechanism is provided at the second support shaft 12 for restricting the second support shaft 12 to be rotatable only in the forward direction and not in the reverse direction. A brake motor may also be provided for the second support shaft 12. When the second support shaft 12 needs to be separated from thefirst support shaft 11, the brake motor can be started, so that the rotation directions of thefirst support shaft 11 and the second support shaft 12 are opposite, and the separation of thefirst support shaft 11 and the second support shaft 12 can be realized.

Referring to fig. 1, in an embodiment, when the cleaning apparatus is applied in a cleaning robot scenario, the cleaning robot may further include: the control device 7 is electrically connected with the motor 8; the fan is electrically connected with the control device 7, the fan can at least form negative pressure in the area covering the rolling brush 2, the control device 7 can change the running direction of the motor 8 according to preset parameters, and the preset parameters comprise any one or combination of the following parameters: cleaning time, cleaning area. Wherein, the rolling brush 2 may be at least one of the first rollingbrush 21 and the second rollingbrush 22.

In the present embodiment, the forward and reverse rotation of the first rollingbrush 21, that is, the forward and reverse rotation control of the motor 8, can be realized by providing a control program in the control device 7, and for example, the reverse rotation of the first rollingbrush 21 can be controlled every certain time. That is, the control may be performed according to the cleaning time of thefirst roll brush 21. For example, the motor 8 may be controlled to rotate in the reverse direction to perform the hair removal process every time the cleaning time of the first rollingbrush 21 reaches a predetermined time. Of course, this can be controlled according to the cleaning area of the roll brush 2. Wherein, the cleaning area of the rolling brush 2 is the sum of the cleaning areas of all the rolling brushes in the cleaning robot. When the cleaning area of the rolling brush 2 reaches a predetermined area, the motor 8 can be controlled to rotate in the reverse direction to perform the hair removal treatment.

In another embodiment, the cleaning robot may further include: a detection unit for identifying the hair winding condition of the rolling brush 2; the control device 7 is electrically connected with the detection unit and the motor 8; and the fan is electrically connected with the control device 7, negative pressure can be formed in at least an area covering the rolling brush 2 by the fan, and the running direction of the motor 8 is changed when the control device 7 determines that hair winding occurs in the rolling brush 2 based on a detection signal of the detection unit.

Specifically, the detection unit may include one or more of the following: the motor control device comprises a detection piece capable of detecting the motor operation parameters and a detection module capable of receiving a user control instruction.

For example, when the detecting unit is a detecting member capable of detecting the operation parameters of the motor 8, when a certain amount of hair is entangled on the rolling brush 2, the amount of entanglement will be fed back to the operation parameters of the motor 8, such as the operating current of the motor 8 will be changed. When the detecting member detects that the working current of the motor 8 fluctuates by a certain amount, the control device 7 controls the motor 8 to rotate reversely according to the signal detected by the detecting member.

In addition, when the detection unit is a detection module capable of receiving a user control command, the detection module may be a predetermined button on the cleaning robot, or may be a command on APP, or the like.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (18)

1. A cleaning robot, comprising: a body; a drive device; the control device is electrically connected with the driving device; the fan is electrically connected with the control device; the cleaning device is arranged on the machine body and used for cleaning a working surface; it is characterized in that the preparation method is characterized in that,

the cleaning device includes: a support shaft including a first support shaft and a second support shaft; at least the first support shaft is provided with a first rolling brush and can be driven by the driving device;

when the driving device drives the first supporting shaft to rotate forwards, the first rolling brush is matched and connected with the second supporting shaft; the first rolling brush is in a working position in a working state; when the driving device drives the first supporting shaft to rotate reversely, the first rolling brush is separated from the second supporting shaft, and a separation gap is formed between the first rolling brush and the second supporting shaft; the first roll brush is in a separated position in a cleaned state.

2. The cleaning robot of claim 1, wherein the cleaning device further comprises: the unidirectional rotation supporting mechanism is used for limiting the second supporting shaft to only rotate in the positive direction; when the driving device drives the first supporting shaft to rotate forwards, the second supporting shaft and the rolling brush rotate forwards together; when the driving device drives the first supporting shaft to rotate reversely, the second supporting shaft is relatively static under the action of the unidirectional rotation supporting mechanism, so that the second supporting shaft is separated from the first rolling brush to form the separation gap.

3. The cleaning robot as claimed in claim 2, wherein the unidirectional rotation support mechanism includes any one of: one-way needle bearing and ratchet wheel.

4. The cleaning robot as claimed in claim 2, wherein said second support shaft is a solid of revolution as a whole, and includes a support body along a longitudinal direction, said support body being externally provided with said unidirectional rotation support mechanism.

5. The cleaning robot of claim 1, wherein the first roller brush extends in a longitudinal direction and has first and second opposite ends, the cleaning device further comprising a torque transfer mechanism for transferring torque from the first support shaft to the first roller brush.

6. The cleaning robot of claim 5, wherein the torque transfer mechanism comprises: a driving member provided on the first roll brush, a cam groove provided on the first support shaft, one end of the driving member extending into the cam groove,

when the first rolling brush is located at the working position, one side of the cam groove close to the second end is in contact with the driving piece;

when the first rolling brush is located at the separation position, one side, far away from the second end, of the cam groove is in contact with the driving piece.

7. The cleaning robot as claimed in claim 6, wherein an angle is formed between an overall extending direction of the cam groove and the lengthwise direction.

8. The cleaning robot according to claim 5, wherein the first roll brush and the second support shaft are detachably connected by a transmission mechanism, the transmission mechanism comprising: a first clamping part arranged at the second end of the first rolling brush, a second clamping part arranged on the second support shaft and close to the second end,

when the first rolling brush is located at the working position, the first clamping part is matched and connected with the second clamping part;

when the first rolling brush is located at the separation position, the first clamping part and the second clamping part are separated.

9. The cleaning robot according to claim 8, wherein the first rolling brush is formed in a hollow cylindrical shape as a whole, and the first engaging portion is provided near an inner side of the first rolling brush; the periphery of the second clamping part is provided with a conical surface, and the sectional area of the conical surface on the side of the first rolling brush gradually decreases.

10. The cleaning robot according to claim 1, wherein the cleaning device further comprises a restoring member provided between the first support shaft and the first roll brush;

when the first rolling brush is converted from the working position to the separation position, the reset piece accumulates elastic potential energy;

when the first rolling brush is converted from the separation position to the working position, the reset piece releases elastic potential energy to drive the rolling brush to approach the second supporting shaft.

11. The cleaning robot as claimed in claim 5, wherein a second rolling brush is provided on the second support shaft, and the first rolling brush and the second rolling brush are rotated in opposite directions.

12. The cleaning robot as claimed in claim 11, wherein a receiving groove is formed between the first roller brush and the second roller brush when the first supporting shaft rotates in the forward direction, the cleaning object on the first roller brush can move in a direction from the first end to the second end, and the cleaning object on the second roller brush can move in a reverse direction and both enter the receiving groove.

13. The cleaning robot according to claim 5, wherein the first support shaft is formed with a first stopper portion at a first end near the first roll brush; a certain distance for forming the separation gap is preset between the first end and the first limiting part; when the first rolling brush is located at the separation position, the first end of the first rolling brush is abutted against the first limiting part.

14. The cleaning robot according to claim 5, wherein the second support shaft includes a second stopper portion,

an accommodating groove is formed between the second end of the first rolling brush and the second limiting part, and when the driving device drives the first supporting shaft to rotate forwards, the cleaning objects on the first rolling brush can move towards the direction from the first end to the second end and are accumulated in the accommodating groove.

15. The cleaning robot according to claim 1 or 11, further comprising:

the detection device is electrically connected with the control device and is used for identifying the winding condition of the cleaning objects on the first rolling brush and/or the second rolling brush;

the fan can at least form negative pressure in the area covering the first rolling brush and/or the second rolling brush, when the control device determines that the cleaning object is wound based on the detection signal of the detection device, the control device controls the driving device to change the running direction of the first supporting shaft, and the cleaning object at the separation gap is sucked away by the negative pressure generated by the fan.

16. A cleaning robot as claimed in claim 15, wherein said drive means comprises a motor and said detection means comprises one or more of the following in combination: the motor control device comprises a detection piece capable of detecting the motor operation parameters and a detection module capable of receiving a user control instruction.

17. A cleaning robot as claimed in claim 1 or 11, characterized in that the fan is capable of generating a negative pressure at least in an area covering the first and/or second roller brush, and the control device is capable of controlling the drive device to change the direction of operation of the first support shaft in accordance with predetermined parameters, and the negative pressure generated by the fan sucks the cleaning material away at the separation gap.

18. A cleaning robot as recited in claim 17, wherein said predetermined parameters include any one or combination of: cleaning time, cleaning area.

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