CN113633217B - Sweeping assembly for sweeping robot and sweeping robot - Google Patents

Abstract

The invention discloses a sweeping assembly for a sweeping robot and the sweeping robot. According to the invention, the cleaning assembly can be provided with the dehairing mechanism, wherein the rotary rolling brush can generate less abrasion through the first physical contact with the dehairing mechanism during the task execution of the cleaning task, and the rotary rolling brush can promote the dehairing fracture of the rotary rolling brush through turning over to the second physical contact with the dehairing mechanism during the non-task execution, so that the automatic cleaning of the dehairing of the rotary rolling brush can be realized on the premise that the damage of the rotary rolling brush by the dehairing component is minimized, thereby being beneficial to improving the cleaning efficiency, reducing the cleaning difficulty and improving the user experience.

Description

Sweeping assembly for sweeping robot and sweeping robot

Technical Field

The invention relates to the robot technology, in particular to a sweeping assembly for a sweeping robot and the sweeping robot using the sweeping assembly.

Background

The sweeping robot is typically equipped with a rotating roll brush and suction assembly. During the cleaning task, the dirt in the road area of the sweeping robot can be lifted off the ground by the rolling brush by utilizing the rotation of the rotary rolling brush, and the dirt lifted by the rolling brush of the rotary rolling brush can be sucked into the dirt storage space by the suction assembly to be accumulated, so that the cleaning of the ground can be realized.

In scenes where the liveness of a person or animal is high (e.g., home environments where people and pets are living), the hair-to-hair ratio in the dirt may be relatively high, the hair lifted by the rotating roller brush is easily entangled in the rotating roller brush, and it is difficult to suck the hair into the storage space by the sucking assembly. Long ago, the winding hair of the rotary rolling brush can be accumulated continuously, and the lifting capacity of the rolling brush of the rotary rolling brush is reduced, and even the normal rotation of the rotary rolling brush is possibly influenced.

In order to clean the wound hair wound on the rotary rolling brush, the prior art only can rely on a manual mode, so that the cleaning efficiency is low, the cleaning difficulty is high, and the user experience is influenced.

Disclosure of Invention

In the embodiment of the invention, a sweeping assembly for a sweeping robot and a sweeping robot using the sweeping assembly are provided, and the sweeping robot can automatically clean the wound hair wound on a rotary rolling brush.

In one embodiment, a cleaning assembly for a sweeping robot may include:

The rotary rolling brush comprises a rolling brush rotating shaft and rolling brush fans distributed on the periphery of the rolling brush rotating shaft;

the driving mechanism is used for driving the rotary rolling brush to rotate around the rolling brush rotating shaft along a first rotating direction for executing a cleaning task or rotate around the rolling brush rotating shaft along a second rotating direction opposite to the first rotating direction;

a dehairing mechanism configured to:

Generating first physical contact between the rolling brush fan and the dehairing mechanism at the installation position during the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the first rotation direction;

Generating a second physical contact between the brush fan of the rotary rolling brush and the dehairing mechanism at the installation position during the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the second rotation direction;

the abrasion degree of the first physical contact on the rolling brush fan is smaller than that of the second physical contact on the rolling brush fan;

And the second physical contact promotes breakage of the bristles attached to the roller brush fan.

Optionally, the dehairing mechanism includes a dehairing member having hook teeth, wherein: during rotation of the rotating roller brush about the roller brush axis of rotation in the first direction of rotation, the roller brush fan sweeps over the dehairing mechanism in a tendency to avoid the hook teeth to form the first physical contact with the dehairing mechanism; during rotation of the rotating brush about the brush axis of rotation in the second direction of rotation, the second physical contact between the brush fan and the dehairing mechanism comprises: interference contact which is formed between the rolling brush fan and the hook teeth and is used for promoting the entangled hair to be broken is formed.

Optionally, the hook teeth comprise a first hook tooth and a second hook tooth, wherein the first hook tooth and the second hook tooth are configured to: during rotation of the rotating roller brush about the roller brush axis of rotation in the first direction of rotation, the first physical contact occurs at the backs of the first and second hook teeth; during the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the second rotating direction, the teeth of the first hook tooth and the second hook tooth are used for reversely hooking the fan-shaped rolling brush in the axial direction of the rolling brush rotating shaft so as to promote the broken of the entangled hair caused by the pulling generated by the reversely hooking.

Optionally, in a circumferential direction around the rolling brush rotating shaft, a preset phase interval is arranged between the first hook tooth and the second hook tooth; in the axial direction of the rolling brush rotating shaft, the first hook teeth and the second hook teeth are arranged in a staggered mode.

Optionally, at least two first hook teeth are arranged at intervals along the axial direction; at least two second hook teeth are arranged at intervals along the axial direction.

Optionally, the dehairing mechanism further includes a carrier substrate, and the first hook tooth and the second hook tooth are integrally formed on the carrier substrate.

Optionally, the carrier substrate includes a metal plate substrate, and the first hook tooth and the second hook tooth are formed on the metal plate structure of the metal plate substrate.

Optionally, the dehairing mechanism includes a cutting member having a blade, wherein:

During rotation of the rotating roller brush about the roller brush axis of rotation in the first direction of rotation, the roller brush fan sweeps the dehairing mechanism in a tendency to clear the blade to form the first physical contact with the dehairing mechanism;

During rotation of the rotating brush about the brush axis of rotation in the second direction of rotation, the second physical contact between the brush fan and the dehairing mechanism comprises: and interference contact which promotes the entangled hair to be cut is formed between the rolling brush fan and the blade part.

Optionally, the dehairing mechanism further comprises a grooming member, wherein: the guiding member guides the brush fan to avoid the blade part during the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the first rotating direction; the grooming member causes the blade portion to adhere to the wrap Mao Zhuangji of the roller brush fan during rotation of the rotating roller brush about the roller brush axis of rotation in the second rotational direction.

Optionally, the grooming member is arranged obliquely with respect to the roll brush rotation shaft to cause the bristles attached to the roll brush fan to be combed so as to tend to extend in the circumferential direction of the roll brush rotation shaft during guiding of the roll brush fan.

Optionally, the blade part is arranged at one side of the cutting member facing the rolling brush rotating shaft, and the dredging member comprises convex teeth arranged at intervals along the blade part; wherein the tooth tops of the convex teeth protrude out of the blade part towards the rolling brush rotating shaft so as to guide the rolling brush fan to avoid the blade part in the radial direction of the rolling brush rotating shaft in the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the first rotating direction; and tooth grooves exposing the blade part are formed between the convex teeth, the convex teeth are beaten by the rolling brush fan during the period that the rotary rolling brush rotates around the rolling brush rotating shaft along the second rotating direction, so that the winding hair attached to the rolling brush fan is hooked on the convex teeth, and the winding hair hooked on the convex teeth is guided by the tooth grooves to impact the blade part.

Optionally, the cleaning assembly further comprises a rolling brush housing, wherein a housing cavity of the rolling brush housing is provided with a rolling brush window; wherein, a part of the rotary rolling brush is positioned in the inner cavity of the housing, and the other part of the rotary rolling brush protrudes out of the inner cavity of the housing from the rolling brush window; and, the dehairing mechanism further comprises a mounting base plate, and the cutting member is fixed on the mounting base plate so as to be inserted into the inner cavity of the rolling brush housing through the assembly of the mounting base plate and the rolling brush housing.

Optionally, the mounting substrate is adjustable with respect to the assembly of the roll brush housing, wherein: when the mounting substrate is restrained against the rolling brush housing by an external pushing force against elastic prestress, the cutting member is in a state of being in place with the blade portion penetrating into the housing inner cavity; when the mounting substrate is driven by the elastic prestress to leave the rolling brush housing due to the disappearance of the external pushing force, the cutting member is in a hidden state of allowing the blade to be retracted out of the housing inner cavity.

Optionally, the dehairing mechanism further comprises a pushing member, wherein: when the pushing member is restrained in a specified phase by the external pushing force, the pushing member pushes the mounting substrate against the rolling brush housing; when the external pushing force disappears, the mounting substrate is driven by the elastic prestress to leave the rolling brush housing, and the pushing component is pushed to deviate from the designated phase.

Optionally, the external pushing force is generated in response to a first event allowing the sweeping robot to perform a sweeping task; the external pushing force disappears in response to a second event allowing the housing cavity to be cleaned and cured.

Optionally, the cleaning assembly further comprises an inner cavity shield detachably mounted to the brush roll window, wherein: the first event includes the lumen shield fitting into place with the roll brush window; the second event includes the lumen shield being detached from the roll brush window.

In another embodiment, a sweeping robot may include a mobile chassis, a suction assembly, and a sweeping assembly according to the previous embodiments.

Optionally, the method further comprises a processor for: when a cleaning task is received, triggering the movable chassis to move along a track appointed by the cleaning task, triggering the driving mechanism to drive the rotary rolling brush to rotate along the first rotation direction and triggering the suction assembly to operate in the execution period of the cleaning task; when a triggering event is detected after the cleaning task is completed, the driving mechanism is triggered to drive the rotary rolling brush to rotate along the second rotation direction for a first preset time period, and the suction assembly is in a stop state during the period that the rotary rolling brush rotates along the second rotation direction.

Optionally, the processor is further configured to: and triggering the driving mechanism to drive the rotary rolling brush to rotate along the first rotating direction for a second preset time period after the rotary rolling brush rotates along the second rotating direction for the first preset time period, and triggering the suction assembly to run for the second preset time period.

Based on the above embodiments, the cleaning assembly for the sweeping robot may be configured with a dehairing mechanism, wherein the first physical contact of the rotary roller brush with the dehairing mechanism during the task execution of the cleaning task may generate less wear, and the second physical contact of the rotary roller brush with the dehairing mechanism during the non-task execution may cause the dehairing to break, so that the automatic cleaning of the dehairing of the rotary roller brush may be realized on the premise that the damage of the rotary roller brush by the dehairing member is minimized, thereby contributing to improving cleaning efficiency, reducing cleaning difficulty, and improving user experience.

Drawings

The following drawings are only illustrative of the invention and do not limit the scope of the invention:

FIG. 1 is a schematic illustration of an exploded view of a cleaning assembly in one embodiment;

FIG. 2 is a schematic view of the first dehairing mechanism of the cleaning assembly of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the cleaning assembly of FIG. 1 in an assembled state;

FIG. 4 is a schematic view of the cleaning principle of the cleaning assembly shown in FIG. 1;

FIG. 5 is a schematic illustration of the dehairing principle of the cleaning assembly of FIG. 1;

FIG. 6 is a schematic illustration of the blade concealment principle of the cleaning assembly shown in FIG. 1;

FIG. 7 is a schematic view of the first dehairing mechanism of the cleaning assembly of FIG. 1 in a hidden state;

FIG. 8 is an exploded view of the first dehairing mechanism of the cleaning assembly of FIG. 1;

FIG. 9 is a schematic illustration of an exploded view of the expanded structure of the cleaning assembly shown in FIG. 1;

FIG. 10 is a schematic view of the expanded structure of FIG. 9 in a first assembled state;

FIG. 11 is a schematic view of the expanded structure of FIG. 9 in a second assembled state;

FIGS. 12a and 12b are schematic views of an assembled structure of a cleaning assembly in another embodiment;

FIG. 13 is a schematic cross-sectional view of the cleaning assembly shown in FIGS. 12a and 12b in an assembled state;

FIG. 14 is a schematic view of the cleaning principle of the cleaning assembly shown in FIGS. 12a and 12 b;

FIG. 15 is a schematic illustration of the dehairing principle of the cleaning assembly of FIGS. 12a and 12 b;

FIG. 16 is a schematic view of the structure of a second dehairing mechanism of the cleaning assembly of FIGS. 12a and 12 b;

FIG. 17 is a schematic view of the mounting principle of a second dehairing mechanism of the cleaning assembly of FIGS. 12a and 12 b;

FIG. 18 is a schematic cross-sectional view of the mounting structure of the second dehairing mechanism of the cleaning assembly of FIGS. 12a and 12 b;

fig. 19 is a schematic view showing an example structure of a sweeping robot in another embodiment;

Fig. 20 is a flowchart of an operation example of the sweeping robot in another embodiment.

Description of the reference numerals

10. 10' Round brush cover

11. 11' Inner cavity of housing

13. 13' Roll brush window

15. 15' Suction tuyere

17. Mounting window

20. First inner cavity shield

200. Lateral boss

30. 30' Rotary rolling brush

31. 31' Rolling brush rotating shaft

33. 33' Rolling brush fan

40. Driving mechanism

41. Power element

43. Transmission mechanism

50. First unhairing mechanism

5L mounting substrate

511. Substrate main body

513. Mounting lug

515. Lug rotating shaft

53. Dredging component

531. Convex tooth

533. Tooth slot

55. Cutting member

550. Blade part

57. Push-pull member

571. Swinging pressing plate

573. Mounting convex frame

575. Push cantilever

59. Packaging cover box

591. Cover box main body

593. Mounting notch

595. Mounting bracket

597. Avoidance gap

60. Second unhairing mechanism

61. Bearing substrate

65. Break Mao Goujian

650. Hook tooth

651. First hook tooth

653. Second hook tooth

70. Second inner cavity shield

700. Slot groove

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and examples.

Fig. 1 is a schematic view of an exploded view of a cleaning assembly in one embodiment. Fig. 2 is a schematic view of the first dehairing mechanism of the cleaning assembly of fig. 1. Fig. 3 is a schematic cross-sectional view of the cleaning assembly shown in fig. 1 in an assembled state. Referring to fig. 1 to 3, the cleaning assembly for the sweeping robot in this embodiment may include a rotary roller brush 30, a driving mechanism 40, and a first dehairing mechanism 50.

The rotary drum brush 30 may include a drum brush rotating shaft 31, and drum brush fans 33 distributed at the outer circumference of the drum brush rotating shaft 31, wherein the drum brush fans 33 may be arranged at intervals around the axis direction of the drum brush rotating shaft 31, and the drum brush fans 33 may be arranged obliquely with respect to the axis direction of the drum brush rotating shaft 31. During the rotation of the rolling brush rotation shaft 31, the rolling brush fan 33 may be circularly turned around the axis of the rolling brush rotation shaft 31.

The driving mechanism 40 may include a power element 41 such as a motor, and a transmission mechanism 43 drivingly connected between the power element 41 and the rotary quasi brush 30 (the roll brush rotation shaft 31), so that the rotary roll brush 30 can be rotated in response to the power output generated by the power element 41. That is, the driving mechanism 40 is for driving the rotary drum brush 30 to rotate, and in particular, the driving mechanism 40 may be for driving the rotary drum brush 30 to rotate in a first rotation direction R1 in which a cleaning task is performed or in a second rotation direction R2 opposite to the first rotation direction R1.

The first rotation direction R1 may be a working direction during the cleaning task performed by the cleaning robot, and the rotating rolling brush 30 rotated in the first rotation direction R1 is used to lift the rolling brush of the ground soil.

For example, the cleaning assembly may further comprise a brush housing 10, the housing cavity 11 of the brush housing 10 having a brush window 13 and a suction port 15 arranged with a predetermined phase deviation with respect to the brush window 13, wherein a part of the rotating brush 30 is located within the housing cavity 11 and another part protrudes from the brush window 13 outside the housing cavity 11, and the driving mechanism 40 is in driving connection with the rotating brush 30 outside the marshal housing 10.

Thus, during the rotation of the rotary drum brush 30 around the drum brush rotation shaft 31 in the first rotation direction R1 for performing the cleaning task by the driving mechanism 40, the drum brush fan 33, which is turned around the axis of the drum brush rotation shaft 31, can brush up the ground dirt outside the drum brush window 13 into the housing cavity 11, wherein the particle chips 91 in the ground dirt lifted by the drum brush can be drawn out from the suction tuyere 15 to the dirt storage space such as the dust box by the suction assembly (not shown in the drawings) of the floor sweeping robot, and if the ground dirt lifted by the drum brush contains the fine long hairs, the fine hairs are likely to be sucked as the particle chips 91 in theory, but at least some of the fine hairs are wound around the rotary drum brush 30 due to the failure of the suction and form the hair windings 92 attached to the drum brush fan 33.

The second rotation direction R2 opposite to the first rotation direction R1, although it is also possible to support the brush fan 33 of the rotary brush 30 to brush up the ground dirt, is mainly effective to clean the bristles 92 of the rotary brush 30 in cooperation with the first bristle removing mechanism 50, and the rotation of the rotary brush 30 about the brush shaft 31 in the second rotation direction R2 is triggered at other times than during the execution of the cleaning task (for example, during the charging period when the cleaning robot resides at the charging stand).

In this embodiment, the first dehairing mechanism 50 may be configured to:

During the rotation of the rotating roller brush 30 around the roller brush rotation shaft 31 in the first rotation direction R1, a first physical contact is generated between the roller brush fan 33 and the first dehairing mechanism 50 at the installation position;

during the rotation of the rotating roller brush 30 around the roller brush rotation shaft 31 in the second rotation direction R2, a second physical contact is generated between the roller brush fan 33 and the first dehairing mechanism 50 at the installation position;

Wherein the first physical contact is less abrasive to the roller brush fan 33 than the second physical contact is abrasive to the roller brush fan 33, and the second physical contact causes the bristles attached to the roller brush fan 33 to break.

Specifically, in this embodiment, the first dehairing mechanism 50 may include a cutting member 55 (e.g., a blade) having a blade portion 550, and the first dehairing mechanism 50 may include one or more than one (seven in this embodiment, for example) cutting member 55. Also, in this embodiment, the first dehairing mechanism 50 may be provided to the roll brush housing 10, and more than one cutting member 55 may be arranged in parallel with each other at intervals along the rotation axis of the rotary roll brush 30 when the first dehairing mechanism 50 is provided to the roll brush housing 10.

For example, the brush housing 10 may have a mounting window 17 arranged offset with respect to the brush window 13 and the suction port 15 by a preset phase deviation (the mounting window 17 is located on the downstream side of the suction port 15 in the first rotation direction R1); also, the first dehairing mechanism 50 may further include a mounting base plate 51, and one or more cutting members 55 may be fixed to the mounting base plate 51 to be inserted into the housing cavity 11 by assembling the mounting base plate 51 with the roll brush housing 10. That is, when the mounting substrate 51 is abutted against the outer wall of the roll brush housing 10 at the position of the cap mounting window 17, the cutting member 55 having the blade 550 may be inserted into the housing inner chamber 11 from the mounting window to maintain the stationary state during both the first rotation direction R1 and the second rotation direction R2 of the rotary roll brush 30.

Fig. 4 is a schematic view of the cleaning principle of the cleaning assembly shown in fig. 1. Fig. 5 is a schematic illustration of the dehairing principle of the cleaning assembly of fig. 1. Referring to fig. 1-3, and with further reference to fig. 4 and 5, in this embodiment, the first dehairing mechanism 50 may be configured to:

during the rotation of the rotating brush 30 about the brush shaft 31 in the first rotational direction R1 (e.g., during the execution of a cleaning task), as shown in fig. 4, the brush fan 33 can sweep (flick) the first dehairing mechanism 50 with a tendency p_bypass away from the blade 550 to form a first physical contact with the first dehairing mechanism 50 having a lower degree of wear;

During the rotation of the rotary drum brush 30 about the drum brush rotation shaft 31 in the second rotation direction R2 (for example, during standby maintenance), as shown in fig. 5, an interference contact i_cut that causes the entangled bristles 92 to be cut off (causes the entangled bristles 92 to be cut off by striking the blade 550) may be formed between the drum brush fan 33 and the blade 550, that is, a second physical contact generated between the drum brush fan 33 and the first unhairing mechanism 50 may include: the interference contact between the roller brush fan 33 and the blade 550 promotes the cutting of the entangled bristles.

Since the blade 550 is in a stationary state relative to the housing interior 11 during this time, the severing of the entangled bristles 92 by the interference contact i_cut of the brush roller fan 33 with the blade 550 can be considered a cleaning process based on passive cutting of entangled bristles 92 (movement of the rotating brush 30, stationary blade 550).

Based on the above embodiment, the cleaning assembly may be configured with the first dehairing mechanism 50 including the cutting member 55, wherein the entangled bristles 92 wound around the rotating drum brush 30 may be cut and crushed (the entangled bristles 920 formed after the entangled bristles 92 are cut by the blade 550 are shown in fig. 5, and these entangled bristles 920 may be lifted and sucked by the brush as the particle chips 91 shown in fig. 4 after falling to the ground) by the interference contact of the rotating drum brush 30 with the blade 550 of the cutting member 55, thereby achieving automatic cleaning of the entangled bristles of the rotating drum brush 30, thereby contributing to an improvement in cleaning efficiency, a reduction in cleaning difficulty, and an improvement in user experience. Also, the interference contact i_cut of the rotating drum brush 30 with the blade 550 of the cutting member 55 can be avoided from occurring during the execution of the cleaning task, so that the cutting damage of the rotating drum brush 30 (drum brush fan 33) by the cutting member 55 can be minimized to facilitate the achievement of automatic cleaning of the entangled bristles 92 while compromising the service life of the rotating drum brush 30.

There may be different ways for the first dehairing mechanism 50 to guide the brush fan 33 to avoid the blade 550 during rotation of the rotating brush 30 about the brush axis of rotation 31 in the first rotational direction R1, and to urge the bristles 92 to strike the blade 550 during rotation of the rotating brush 30 about the brush axis of rotation 31 in the second rotational direction R2.

As one conceivable way, the blade 550 of the cutting member 55 may be arranged toward the downstream side of the first rotation direction R1, the upstream side of the second rotation direction R2, so that the blade 550 can be head-on collided by the brush fan 33 of the rotary drum brush 30 only during the rotation of the rotary drum brush 30 around the drum brush rotation shaft 31 in the second rotation direction R2. Also, the blunt edge of the cutting member 55 may be disposed toward the upstream side of the first rotation direction R1, the downstream side of the second rotation direction R2, to receive the head-on collision of the brush fan 33 instead of the blade 550 during the rotation of the rotary brush 30 around the brush rotation shaft 31 in the first rotation direction R1, and to guide the brush fan 33 to avoid the blade 550. Further, the blunt edge may be arranged obliquely with respect to the roll brush rotation shaft 31 to cause the bristles 92 attached to the roll brush fan 33 to be combed so as to tend to extend in the circumferential direction of the roll brush rotation shaft 31 during the guiding of the roll brush fan 33, i.e., to cause the bristles 92 to be in a posture approaching a transverse position with respect to the blade 550 so as to be cut more easily upon striking the blade 550.

This embodiment provides an alternative and advantageous way, i.e. the first dehairing mechanism 50 may further comprise a grooming member 53, wherein:

during the rotation of the rotating drum brush 30 around the drum brush rotation shaft 31 in the first rotation direction R1, the dispersion member 53 may guide the drum brush fan 33 to the avoidance blade 550;

During the rotation of the rotating drum brush 30 around the drum brush rotation shaft 31 in the second rotation direction R2, the grooming member 53 may cause the fur 92 attached to the drum brush fan 33 to strike the blade 550.

Also, the grooming member 53 may be arranged obliquely with respect to the roll brush rotation shaft 31 to cause the bristles 92 attached to the roll brush fan 33 to be combed so as to tend to extend in the circumferential direction of the roll brush rotation shaft 31, i.e., to cause the bristles 92 to be in a posture tending to be transverse with respect to the blade 550 during the period of guiding the roll brush fan 33, so as to be cut more easily upon striking the blade 550.

In order to allow for a compact design of the sweeping robot, the volume of the sweeping assembly in this embodiment is preferably designed to be as small as possible, in particular in the radial direction of the rotating roller brush 30. Based on such consideration, the radial dimension of the housing inner chamber 11 of the brush housing 10 approaches the outer diameter dimension of the rotary brush 30, whereby the cutting member 55 is arranged along the chamber wall of the housing inner chamber 11, and the blade 550 may be arranged on the side of the cutting member 55 toward the brush rotation shaft 31, to allow the dimension of the blade 550 to be as large as possible in consideration of the miniaturization design of the sweeping robot, to promote the efficiency of cleaning the entangled bristles 92. Accordingly, the guide of the dispersion member 53 to let the brush fan 33 escape from the blade 550 and the guide to let the bristles 92 strike the blade 550 can be both along the radial direction of the brush shaft 31.

Thus, the automatic cleaning of the entangled bristles can be realized, the size of the sweeping robot can be further miniaturized, and the service life of the rotary rolling brush 30 can be also prolonged.

In this case, referring to fig. 2 in particular, the diverting member 53 may include teeth 531 spaced along the blade 550, wherein:

During the rotation of the rotary drum brush 30 around the drum brush rotation shaft 31 in the first rotation direction R1, in order to guide the drum brush fan 33 to avoid the blade 550 in the radial direction of the drum brush rotation shaft 31, the tooth tips of the convex teeth 531 may protrude outside the blade 550 toward the drum brush rotation shaft 31 to guide the drum brush fan 33 to avoid (avoid by flexible deformation in the radial direction) the blade 550 in the radial direction of the drum brush rotation shaft 31;

During the rotation of the rotary drum brush 30 around the drum brush rotation shaft 31 in the second rotation direction R2, in order to cause the bristles 92 to strike the blade 550 in the radial direction of the drum brush rotation shaft 31, tooth grooves (533) exposing the blade 550 may be provided between the teeth 531, so that, when the teeth 531 are patted by the drum brush fan 33, the bristles 92 attached to the drum brush fan 33 may be caught on the teeth 531, and the bristles caught on the teeth 531 may be guided by the tooth grooves 533 to strike the blade 550. Preferably, the tooth grooves 533 may be arranged obliquely with respect to the radial direction of the roll brush rotation shaft 31 to prevent the bristles 92 caught on the teeth 531 from being separated (escaped) from the tooth grooves 533 before striking the blade portion 550 during the rotation of the rotary roll brush 30 about the roll brush rotation shaft 31 in the second rotation direction R2.

Also, the radial distance of the teeth 531 with respect to the roll brush rotation shaft 31 gradually changes in the arrangement direction, and the tendency of the gradual change may be configured to:

During the period in which the rotary roller brush 30 rotates around the roller brush rotating shaft 31 in the first rotation direction R1, the bristles 92 attached to the roller brush fan 33 are caused to be urged by the tooth tops of the convex teeth 531 to be healed into the roller brush rotating shaft 31, that is, the bristles 92 are retracted into the end edges of the roller brush fan 33, thereby reducing the influence of the bristles 92 on the rolling brush capability of the roller brush fan 33;

during the rotation of the rotary drum brush 30 around the drum brush rotation shaft 31 in the second rotation direction R2, the internally-wound bristles 92 are caused to diffuse outwardly from the drum brush rotation shaft 31 to strike the blade 550.

In addition, if the cutting member 55 is a replaceable independent member (e.g., a metal blade), the dispersion member 53 may be used to fixedly mount the cutting member 55 on the mounting substrate 51, for example, the dispersion member 53 may have teeth 531 arranged at intervals along the blade 550, and a slit for sandwiching the cutting member 55 may be provided between the two rows of teeth 531, so that the cutting member 55 may be fixedly sandwiched by the dispersion member 53 integrally formed on the mounting substrate 51. Or the cutting member 55 may be integrally formed with the dispersion member 53 to the mounting substrate 51, that is, the cutting member 55 may have the same hard material as the mounting substrate 51 and the dispersion member 53.

In practical use, the rotary rolling brush 30 may need to be cleaned or replaced, and the inner cavity 11 of the housing where the rotary rolling brush 30 is located also needs to be cleaned and maintained, and at this time, the blade 550 of the cutting member 55 penetrating into the inner cavity 11 of the housing becomes a safety hazard that is easy to cause a cut.

Fig. 6 is a schematic view of the blade hiding principle of the cleaning assembly shown in fig. 1. Fig. 7 is a schematic view of the first dehairing mechanism of the cleaning assembly of fig. 1 in a hidden state. In order to eliminate the above-described safety hazard, in this embodiment, the fitting of the mounting substrate 51 of the first dehairing mechanism 50 with the roll brush housing 10 is adjustable such that:

When the mounting substrate 51 is restrained against the rolling brush housing 10 by the external pushing force f_push against the elastic prestress force f_spr, as shown in fig. 6, the cutting member 55 is in a state where the blade 550 is brought into position in the housing cavity 11, that is, the first dehairing mechanism 50 is in the above-described mounting position where the first physical contact or the second physical contact with the rolling brush fan 33 occurs;

When the mounting substrate 51 is driven to be separated from the roll brush housing 10 by the elastic prestress force f_spr due to the disappearance of the external pushing force f_push (as indicated by the dotted arrow in fig. 6), the cutting member 55 is in a hidden state in which the blade 550 is retracted out of the housing inner cavity 11, that is, the first dehairing mechanism 50 is now out of the aforementioned mounting position, as shown in fig. 7.

To achieve the above-described switching before the in-place state and the hidden state, in this embodiment, the first dehairing mechanism 50 may further include a push-pull member 57, wherein:

when the pushing member 57 is restrained at a specified phase (a phase where it is in fig. 6) by the external pushing force f_push, the pushing member 57 pushes the mounting substrate 51 against the roll brush housing 10;

When the external pushing force f_push disappears, the mounting substrate 51 is driven by the elastic prestress f_spr to leave the roll brush housing 10 (separated entirely or partially from the roll brush housing 10) and push the push member 57 to deviate from its designated phase in fig. 6.

Fig. 8 is an exploded view of the first dehairing mechanism of the cleaning assembly of fig. 1. Referring to fig. 6 in conjunction with fig. 8, in one example construction, the first dehairing mechanism 50 may further comprise an encapsulating cover box 59, wherein the encapsulating cover box 59 may have a cover box body 591 for receiving the mounting substrate 51 and the encapsulating cover box 59 may also have a mounting cutout 593 located on a first side of the cover box body 591.

Accordingly, the mounting substrate 51 may include a substrate body 511 in which the cutting member 55 and the diverting member 53 are disposed, a mounting lug 513 protruding from one side of the substrate body 511, and a lug shaft 515 rotatably mounting the mounting lug 513 at the mounting cutout 593. The aforementioned elastic prestress f_spr can be generated to the mounting substrate 51 by disposing an elastic member such as a torsion spring at the lug shaft 515.

Also, the encapsulation cover box 59 may further have a mounting bracket 595 disposed inside the cover box body 591, and a relief notch 597 disposed at a second side (opposite to the first side) of the cover box body 591.

Accordingly, the pushing member 57 may have a swing pressing plate 571 for pushing the mounting substrate 51 against the roll brush housing 10, a mounting boss 573 located at one side of the swing pressing plate 571, and a pushing cantilever 575. Wherein the mounting flange 573 is rotatably mounted to the mounting bracket 595 to allow the push-pull member 57 to be swingably mounted to the package cover case 59; and, the push cantilever 575 has a larger protruding length than the mounting ledge 573 and protrudes out of the cap box body 591 from the escape notch 597 of the encapsulation cap box 591 for receiving the external push force f_push.

In actual use, the external pushing force f_push may be generated in response to a first event allowing the sweeping robot to perform a sweeping task, and the external pushing force f_push may disappear in response to a second event allowing the housing cavity 11 to be cleared and cured. The second event may be a reverse event of the first event or may be a separate event unrelated to the first event.

For the first event and the second event, the following will exemplify.

Fig. 9 is a schematic view of an exploded view of the expanded structure of the cleaning assembly shown in fig. 1. Fig. 10 is a schematic view of the expanded structure of fig. 9 in a first assembled state. Fig. 11 is a schematic view of the expanded structure of fig. 9 in a second assembled state. Referring to fig. 9 in combination with fig. 10 and 11, in this embodiment, the cleaning assembly may further include a first cavity shield 20 removably mounted to the roller brush window 13, the first cavity shield 20 allowing a portion of the rotating roller brush 30 to protrude from the roller brush window 13 and for preventing hard objects from splashing into the housing cavity 11, wherein:

As shown in fig. 10, the first event that causes the external pushing force f_push to occur may include the first inner cavity shroud 20 being assembled with the roll brush window 13 in place, i.e., when the first inner cavity shroud 20 is assembled with the roll brush window 13 in place, the lateral boss 200 of the first inner cavity shroud 20 may press the pushing cantilever arms 575 of the pushing member 57, thereby triggering the swinging pressing plates 571 of the pushing member 57 to push the mounting substrate 51 against the roll brush housing 10;

as shown in fig. 11, the second event causing the disappearance of the external pushing force f_push may include the detachment and separation of the first inner cavity cover 20 from the roll brush window 13, that is, when the detachment and separation of the first inner cavity cover 20 from the roll brush window 13, the pressing of the pushing cantilever 575 of the pushing member 57 by the lateral boss 200 is released, so that the mounting substrate 51 is separated from the roll brush housing 10 by the elastic prestress force f_spr, and the pushing member 57 is pushed to deviate from the designated phase.

Fig. 12a and 12b are schematic views of an assembled structure of a cleaning assembly in another embodiment. Fig. 13 is a schematic cross-sectional structure of the assembled state of the cleaning assembly shown in fig. 12a and 12 b. Referring to fig. 12a and 12b and fig. 13, the cleaning assembly for the sweeping robot in this embodiment may still include a rotary roller brush 30', a driving mechanism 40, and a first dehairing mechanism 50.

Wherein the rotary roller brush 30' is only physically different from the rotary roller brush 30 in the previous embodiment, but is identical in function and operation principle to the rotary roller brush 30 in the previous embodiment and is exchangeable with the rotary roller brush 30 in the previous embodiment; moreover, the drive mechanism 40 in this embodiment may be the same or substantially the same as the previous embodiment.

Therefore, the rotary drum brush 30' and the driving mechanism 40 will not be described again here.

In this embodiment, the second dehairing mechanism 60 may also be configured like the first dehairing mechanism 50 in the previous embodiment:

During the rotation of the rotating roller brush 30' about the roller brush rotation axis 31' in the first rotation direction R1, a first physical contact is produced between the roller brush fan 33' and the second dehairing mechanism 60 in the mounted position;

During the rotation of the rotating roller brush 30' about the roller brush rotation axis 31' in the second rotation direction R2, a second physical contact is produced between the roller brush fan 33' and the second dehairing mechanism 60 in the mounted position;

Wherein the first physical contact is less abrasive to the roller brush fan 33' than the second physical contact is abrasive to the roller brush fan 33', and the second physical contact causes the bristles attached to the roller brush fan 33' to break.

But unlike the first dehairing mechanism 50 which cuts the entangled bristles with the blade portion 550, the second dehairing mechanism 60 in this embodiment can realize dehairing by stretch breaking the entangled bristles.

Fig. 14 is a schematic view of the cleaning principle of the cleaning assembly shown in fig. 12a and 12 b. Fig. 15 is a schematic illustration of the dehairing principle of the cleaning assembly of fig. 12a and 12 b. Fig. 16 is a schematic view of the structure of a second dehairing mechanism of the cleaning assembly shown in fig. 12a and 12 b. With further reference to fig. 14 and 15 and 16, the second dehairing mechanism 60 may include a break Mao Goujian having a hook tooth 650, i.e., the second dehairing mechanism 60 may have a hook tooth 650, wherein:

During rotation of the rotating roller brush 30 'about the roller brush axis of rotation 31' in the first rotational direction R1, as shown in FIG. 14, the roller brush fan 33 'sweeps over the second dehairing mechanism 60 to establish a first physical contact with the second dehairing mechanism 60 in a direction P_bypass' that avoids the hook teeth 650;

during the rotation of the rotating brush 30' about the brush rotation axis 31' in the second rotation direction R2, as shown in fig. 15, the second physical contact generated between the brush fan 33' and the second dehairing mechanism 60 may include: an interference contact i_cut 'is formed between the roller brush fan 33' and the hook teeth 650 to cause the entangled bristles 92 to be pulled apart.

Since the teeth 650 are in a stationary state relative to the housing interior 11 'during this period, the severing of the bristles 92 by the interference contact i_cut' of the roller brush fan 33 'with the teeth 650 can be considered a cleaning process based on passive cutting of the bristles 92 (movement of the rotating roller brush 30', stationary of the teeth 650).

Based on the above embodiment, the cleaning assembly may be configured with the second dehairing mechanism 60 including the breaks Mao Goujian, wherein the entangled bristles 92 wound around the rotating roller brush 30 'may be cut and crushed (the entangled bristles 920 formed after the entangled bristles 92 are broken by the hook teeth 650 are shown in fig. 15) by the interference contact of the rotating roller brush 30' with the hook teeth 650 of the breaks Mao Goujian, and these entangled bristles 920 may be lifted up by the roller brush and sucked through the suction tuyere 15 'as the particle fragments 91 shown in fig. 14 after falling to the ground, thereby achieving automatic cleaning of the entangled bristles of the rotating roller brush 30', thereby contributing to an improvement in cleaning efficiency, a reduction in cleaning difficulty, and an improvement in user experience. Moreover, the interference contact i_cut 'of the rotating roller brush 30' with the hook teeth 650 of the break Mao Goujian 'can be avoided from occurring during the execution of the cleaning task, so that the snagging damage of the rotating roller brush 30' (the roller brush fan 33 ') by the break Mao Goujian 65 can be minimized to facilitate the automatic cleaning of the entangled bristles 92 while compromising the service life of the rotating roller brush 30'.

With particular attention to fig. 16, in this embodiment, the teeth 650 of the second dehairing mechanism 60 can include a first tooth 651 and a second tooth 653, wherein the first tooth 651 and the second tooth 653 are configured to:

During the rotation of the rotary roller brush 30' about the roller brush rotation shaft 31' in the first rotation direction R1, the first physical contact between the roller brush fan 33' and the second unhairing mechanism 60 occurs at the tooth backs 651b of the first hook teeth 651 and the tooth backs 653b of the second hook teeth 653, preferably, the tooth backs 651b of the first hook teeth 651 and the tooth backs 653b of the second hook teeth 653 may each have a smooth profile;

During the rotation of the rotary drum brush 30 'around the drum brush rotation shaft 31' in the second rotation direction R2, the teeth 651c and 651d of the first hook tooth 651 and the teeth 653c and 653d of the second hook tooth 653 form a reverse hooking to the drum brush fan 33 'in the axial direction of the drum brush rotation shaft 31' to promote breakage of the entangled bristles 92 due to the pulling generated by the reverse hooking.

That is, the teeth 651c and 651d of the first hook tooth 651, and the second hook tooth 653 are both arranged with the teeth 653c and 653d in a direction of head-on collision with the rotary drum brush 30' rotating in the second rotation direction R2, and therefore, during rotation of the rotary drum brush 30' about the drum brush rotation shaft 31' in the second rotation direction R2:

The teeth 651c and 651d of the first hook tooth 651 are flapped by the roll brush fan 33', so that the bristles 92 attached to the roll brush fan 33' can be hooked by the teeth 651c and 651d of the first hook tooth 651, and the teeth 651c and 651d of the first hook tooth 651 hook the bristles 92 to generate a pulling force in the first axial direction of the roll brush rotating shaft 31 ';

The teeth 653c and 653d of the second hook teeth 653 are flapped by the roller brush fan 33', so that the bristles 92 attached to the roller brush fan 33' can be hooked by the teeth 653c and 653d of the second hook teeth 653, and the teeth 653c and 653d of the second hook teeth 653 hook the bristles 92, so that a pulling force can be generated toward a second axial direction of the roller brush rotating shaft 31', which is opposite to the first axial direction;

thus, the entangled bristles 92 hooked by the first hooking tooth 651 with the teeth 651c and 651d and hooked by the second hooking tooth 653 with the teeth 653c and 653d may be broken due to the reverse axial pulling force generated by the reverse hooking. Accordingly, in the axial direction of the rolling brush rotating shaft 31', the first hook tooth 651 and the second hook tooth 653 may be arranged in a staggered manner, so that the entangled bristles 92 may be subjected to tensile force generated by reverse hooking at different positions, so as to be broken.

Preferably, the first hook tooth 651 may have a first support cantilever 651a, wherein an edge of the first support cantilever 651a in a direction of head-on collision with the rotary drum brush 30 'rotating in the first rotation direction R1 is formed with a tooth back 651b of the first hook tooth 651, and edges of the first support cantilever 651a in a direction of head-on collision with the rotary drum brush 30' rotating in the second rotation direction R2 are formed with teeth 651c and 651d; similarly, the second hooking tooth 653 may have a second supporting cantilever 653a, wherein an edge of the second supporting cantilever 653a in a direction of head-on collision with the rotating drum brush 30 'rotating in the first rotating direction R1 is formed with a tooth back 653b of the second hooking tooth 653, and an edge of the second supporting cantilever 653a in a direction of head-on collision with the rotating drum brush 30' rotating in the second rotating direction R2 is formed with teeth 653c and 653d.

Also, the first support cantilever 651a is disposed obliquely toward the first axial direction, and the second support cantilever 653 is disposed obliquely toward the second axial direction, such that the first hook tooth 651 is hooked toward the first axial direction by the pull force generated by the teeth 651c and 651d, and the second hook tooth 653 is hooked toward the second axial direction by the pull force generated by the teeth 653c and 653 d.

In addition, in order to make the hooking of the first hook tooth 651 by the teeth 651c and 651d and the hooking of the second hook tooth 653 by the teeth 653c and 653d more firm, the teeth 651c and 651d of the first hook tooth 651 and the teeth 653c and 653d may each be a multi-tooth arrangement in which the teeth are staggered in the tooth thickness direction. That is, at least two teeth 651c and 651d of the first hook tooth 651 are arranged at intervals in the extending direction of the first support cantilever 651a and staggered in the tooth thickness direction of the first hook tooth 651 (i.e., the thickness direction of the first support cantilever 65 la), and at least two teeth 653c and 653d of the second hook tooth 653 are arranged at intervals in the extending direction of the second support cantilever 653a and staggered in the tooth thickness direction of the second hook tooth 653 (i.e., the thickness direction of the second support cantilever 653 a).

Because of the staggered skew of the at least two teeth 651c and 651d of the first hook tooth 651, if the entangled bristles 92 are simultaneously hooked by the at least two teeth 651c and 651d, the hooking directions of the at least two teeth 651c and 651d to the entangled bristles 92 are staggered, so that the entangled bristles 92 are not easily separated, and even when the rotational speed of the rotary drum brush 30' is sufficiently fast, the at least two teeth 651c and 651d staggered in the staggered manner may also exert a cutting action on the entangled bristles 92 approaching the blade 550 in the foregoing embodiment. The second hook 653 is similar and will not be described again.

More preferably, the second dehairing mechanism 60 (i.e., the segments Mao Goujian, 65) may further include a carrier substrate 61, and both the first and second hook teeth 651, 653 may be integrally formed with the carrier substrate 61. For example, the carrier substrate 61 may include a sheet metal substrate, and the first hook tooth 651 and the second hook tooth 653 are sheet metal structures formed (e.g., formed by a stamping process or the like) on the sheet metal substrate.

In this case, at least two first hook teeth 651 and at least two second hook teeth 653 may be formed at one time for the second dehairing mechanism 60, and the at least two first hook teeth 651 are spaced apart in the axial direction and the at least two second hook teeth 653 are spaced apart in the axial direction, so that the broken hair range of the second dehairing mechanism 60 (i.e., the broken hair Mao Goujian) can cover the entire axial length of the rotary drum brush 30'. If so, there may be a predetermined phase interval between the first and second hooks 651 and 653 in the circumferential direction around the rolling brush rotation shaft 31', so that the distribution of the first and second hooks 651 and 653 is more discrete, helping to secure the strength of the carrier substrate 61.

Fig. 17 is a schematic view of the installation principle of the second dehairing mechanism of the cleaning assembly as shown in fig. 12a and 12 b. Fig. 18 is a schematic cross-sectional view of the mounting structure of the second dehairing mechanism of the cleaning assembly as shown in fig. 12a and 12 b. Referring further to fig. 17 and 18, the cleaning assembly in this embodiment may further include a second cavity shield 70 removably mounted to the roller brush window 13', the second cavity shield 70 allowing a portion of the rotating roller brush 30' to protrude from the roller brush window 13 'and for preventing hard objects from splashing into the housing cavity 11', and a second dehairing mechanism 60 (i.e., break Mao Goujian) may be removably fixedly mounted to the second cavity shield 70.

For example, the second inner housing 70 may have a slot 700, and the carrier substrate 61 of the second dehairing mechanism 60 (i.e., the break Mao Goujian 65) may be plugged into the slot 700.

When the second cavity cover 70 is mounted on the rolling brush housing 10', the second dehairing mechanism 60 (i.e., the break Mao Goujian) mounted on the second cavity cover 70 can be positioned in the housing cavity 11' in a posture that the hook teeth 650 face the rotary rolling brush 30', i.e., the second dehairing mechanism 60 is at the mounting position.

When the second cavity cover 70 is detached due to the cleaning and maintenance requirements of the housing cavity 11', the second dehairing mechanism 60 (i.e. the break Mao Goujian 65) installed on the second cavity cover 70 is also removed from the housing cavity 11', so as to avoid the hidden trouble that the hook teeth 650 of the second dehairing mechanism 60 (i.e. the break Mao Goujian 65) scratch the hands in the housing cavity 11 '.

As can be seen from the above embodiments, the following conditions can be satisfied, whether the first detangling Mao Goujian, which is achieved based on cutting in the embodiment shown in fig. 1, or the second detangling Mao Goujian, which is achieved based on stretch breaking in the embodiment shown in fig. 12a and 12 b:

during rotation of the rotating roller brush 30 or 30' about the roller brush axis of rotation 31 or 31' in the first rotational direction R1, a first physical contact is made between the roller brush fan 33 or 33' and the dehairing mechanism (e.g., the first dehairing mechanism 50 or the second dehairing mechanism 60) in the installed position;

During rotation of the rotating roller brush 30 or 30' about the roller brush rotation axis 31 or 31' in the second rotation direction R2, a second physical contact is made between the roller brush fan 33 or 33' and the dehairing mechanism (e.g., the first dehairing mechanism 50 or the second dehairing mechanism 60) in the installed position;

Wherein the first physical contact produces less wear to the roller brush fan 33 or 33 than the second physical contact produces to the roller brush fan 33 or 33;

And, the second physical contact promotes breakage of the bristles attached to the roll brush fan 33 or 33.

Based on this, the cleaning assembly for the sweeping robot may be configured with a dehairing mechanism (first dehairing mechanism 50 or second dehairing mechanism 60), wherein the first physical contact of the rotating roller brush 30 or 30' with the dehairing mechanism (e.g., first dehairing mechanism 50 or second dehairing mechanism 60) during the task execution of the cleaning task may generate less abrasion, and the second physical contact of the rotating roller brush 30 or 30' with the dehairing Mao Goujian (first dehairing mechanism 50 or second dehairing mechanism 60) during the non-task execution may cause the dehairing break of the dehairing wound around the rotating roller brush 30 or 30', so that the automatic cleaning of the dehairing of the rotating roller brush 30 or 30' may be achieved with the damage of the rotating roller brush 30 or 30' by the dehairing Mao Goujian (e.g., first dehairing mechanism 50 or second dehairing mechanism 60) minimized, thereby contributing to the improvement of efficiency, reduction of cleaning difficulty, and improvement of user experience.

In another embodiment, a sweeping robot using the sweeping assembly of the above embodiment is provided, i.e., the sweeping robot may include a moving chassis, a suction assembly, and the sweeping assembly of the above embodiment.

Fig. 19 is a schematic diagram showing an example structure of a sweeping robot in another embodiment. Referring to fig. 19, taking an example in which the cleaning assembly includes the second dehairing mechanism 60 in the embodiment as shown in fig. 12a and 12b, the moving chassis 91 may include a robot body having driving wheels, the suction assembly 93 may include a blower, and the floor sweeping robot may further include a dust collecting assembly 95 having a dust collecting box (e.g., disposed between the suction tuyere 15' and the suction assembly 93), and a wiping assembly 97 (e.g., a cloth holder and a cloth attached thereto) installed under the moving chassis 91.

In addition, in order to support the sweeping robot to perform the sweeping task and automatically clean the entangled bristles, the sweeping robot may further include a processor for:

When a cleaning task is received, the movable chassis is triggered to move along a track designated by the cleaning task, and the trigger driving mechanism 40 drives the rotary rolling brush 30 or 30' to rotate along a first rotary direction R1 and triggers the suction assembly to operate during the execution period of the cleaning task;

When a designated trigger event (e.g., the sweeping robot has returned to a parking place such as a charging stand) after completion of the sweeping task is detected, the trigger driving mechanism 40 drives the rotation of the rotary drum brush 30 or 30 'in the second rotation direction R2 for a first preset period of time, and the suction assembly may be in a stopped state during the rotation of the rotary drum brush 30 or 30' in the second rotation direction R2.

Wherein the first preset time period is less than, even much less than, the duration of the cleaning task, e.g., the first preset time period may not exceed 30 seconds, or even not exceed 10 seconds.

During the rotation of the rotary drum brush 30 or 30' in the second rotation direction R2, the entangled bristles wound around the rotary drum brush 30 or 30' may be broken by the drum brush fan 33 or 33' beating the unhairing mechanism (e.g., cut and crushed by the blade 550 of the first unhairing mechanism 50 or pulled and crushed by the hook teeth 650 of the second unhairing mechanism 60), and the entangled-bristles-broken-up stubble formed after the entangled-bristles-breaking may be fallen off to the ground, and thus the processor may be further configured to:

After the rotating roller brush 30 or 30 'completes the rotation in the second rotation direction R2 for the first preset time period, the trigger driving mechanism 40 drives the rotating roller brush 30 or 30' to rotate in the first rotation direction R1 for the second preset time period, and triggers the suction assembly to run for the second preset time period, so that the winding brush lifts up the winding stubble falling off the ground and sucks the winding stubble into a dirt storage space (such as a dust collecting box carried in the sweeping robot) so as to avoid two kinds of pollution to the ground caused by winding cleaning.

Wherein the second predetermined time period is less than, even much less than, the duration of the cleaning task, e.g., the second duration may be less than or equal to the first predetermined time period.

Fig. 20 is a flowchart of an operation example of the sweeping robot in another embodiment. Referring to fig. 20, in this operation example, the processor of the sweeping robot may perform node interpolation as follows:

S2010: triggering the movable chassis to move along a track appointed by the cleaning task according to the cleaning task issued by the control center, and triggering the driving mechanism to drive the rotary rolling brush to rotate along a first rotation direction and trigger the suction assembly to operate in the execution period of the cleaning task;

S2030: after the cleaning task is monitored to be completed, stopping the driving mechanism and the suction assembly, and triggering the movable chassis to return to the charging seat;

S2050: when the movable chassis is detected to reach the charging seat and the dehairing mechanism of the cleaning assembly is detected to be at the installation position, the trigger driving mechanism is used for driving the rotary rolling brush to rotate for a first preset time period along the second rotation direction, and the suction assembly can be in a stop state during the period that the rotary rolling brush rotates along the second rotation direction. For example, the cleaning assembly may further include an in-place detection mechanism for detecting whether the first lumen shield or the second lumen passport is in place with the roller brush window at that time.

S2070: when the first preset time period is up, the trigger driving mechanism drives the rotary rolling brush to rotate along the first rotation direction for a second preset time period, and triggers the suction assembly to run for the second preset time period.

Thereafter, cleaning and maintenance can be performed on the interior of the housing by removing the interior shield of the cleaning assembly from the brush window at this time.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Claims (15)

1. A cleaning assembly for a sweeping robot, comprising:

A rotating roller brush (30 or 30 '), the rotating roller brush (30 or 30 ') including a roller brush rotating shaft (31 or 31 '), and a roller brush fan (33 or 33 ') distributed at an outer circumference of the roller brush rotating shaft (31 or 31 ');

A driving mechanism (40), the driving mechanism (40) is used for driving the rotary rolling brush (30 or 30 ') to rotate around the rolling brush rotating shaft (31 or 31 ') along a first rotating direction for executing cleaning tasks or rotate around the rolling brush rotating shaft (31 or 31 ') along a second rotating direction opposite to the first rotating direction;

a dehairing mechanism (50 or 60), the dehairing mechanism (50 or 60) configured to:

-a first physical contact is made between the brush fan (33 or 33 ') and the dehairing mechanism (50 or 60) in the mounted position during rotation of the rotating brush (30 or 30 ') about the brush axis of rotation (31 or 31 ') in the first direction of rotation;

generating a second physical contact between the brush fan (33 or 33 ') and the dehairing mechanism (50 or 60) in the mounted position during rotation of the rotating brush (30 or 30 ') about the brush axis of rotation (31 or 31 ') in the second direction of rotation;

wherein the first physical contact produces less wear on the roller brush fan (33 or 33 ') than the second physical contact produces on the roller brush fan (33 or 33');

And, the second physical contact promotes breakage of the tangled hair attached to the roll brush fan (33 or 33').

2. The cleaning assembly according to claim 1, wherein the dehairing mechanism (60) has hook teeth (650), wherein:

During rotation of the rotating roller brush (30 or 30 ') about the roller brush axis of rotation (31 or 31 ') in the first direction of rotation, the roller brush fan (33 or 33 ') sweeps over the dehairing mechanism in a tendency to clear the hook teeth (650) to make the first physical contact with the dehairing mechanism (60);

during rotation of the rotating brush (30 or 30 ') about the brush axis of rotation (31 or 31 ') in the second direction of rotation, the second physical contact between the brush fan (33 or 33 ') and the dehairing mechanism (60) comprises: interference contact between the roller brush fan (33 or 33') and the hook teeth (650) is formed to promote the entangled bristles to be broken.

3. The cleaning assembly according to claim 2, wherein the tooth (650) comprises a first tooth (651) and a second tooth (653), wherein the first tooth (651) and the second tooth (653) are configured to:

During rotation of the rotating roller brush (30 or 30 ') about the roller brush axis of rotation (31 or 31') in the first direction of rotation, the first physical contact occurs at the backs of the first hook teeth (651) and the second hook teeth (653);

During the period that the rotary rolling brush (30 or 30 ') rotates around the rolling brush rotating shaft (31 or 31') along the second rotating direction, the teeth of the first hook tooth (651) and the second hook tooth (653) form reverse hooking on the rolling brush fan (33 or 33 ') in the axial direction of the rolling brush rotating shaft (31 or 31') so as to promote the broken of the entangled bristles due to the pulling generated by the reverse hooking.

4. A cleaning assembly according to claim 3, characterized in that the first and second hooking teeth (651, 653) are arranged offset in the axial direction of the roll brush spindle (31 or 31').

5. The cleaning assembly of claim 1, wherein the dehairing mechanism (50) comprises a cutting member (55) having a blade (550), wherein:

During rotation of the rotating roller brush (30 or 30 ') about the roller brush axis of rotation (31 or 31 ') in the first direction of rotation, the roller brush fan (33 or 33 ') sweeps over the dehairing mechanism in a tendency to clear the blade (550) to make the first physical contact with the dehairing mechanism (50);

during rotation of the rotating brush (30 or 30 ') about the brush axis of rotation (31 or 31 ') in the second direction of rotation, the second physical contact between the brush fan (33 or 33 ') and the dehairing mechanism (50) comprises: interference contact between the brush fan (33 or 33') and the blade (550) causes the entangled bristles to be cut.

6. The cleaning assembly of claim 5, wherein the dehairing mechanism (50) further comprises a grooming member (53), wherein:

The grooming member (53) guides the brush fan (33 or 33 ') to avoid the blade (550) during rotation of the rotating brush (30 or 30 ') about the brush axis of rotation (31 or 31 ') in the first rotational direction;

The grooming member (53) causes the blade (550) to adhere to the windings Mao Zhuangji of the roller brush fan (33 or 33 ') during rotation of the rotating roller brush (30 or 30 ') about the roller brush axis (31 or 31 ') in the second rotational direction.

7. The cleaning assembly according to claim 6, characterized in that the grooming member (53) is arranged obliquely with respect to the roll brush rotation shaft (31 or 31 ') to cause, during guiding of the roll brush fan (33 or 33'), bristles attached to the roll brush fan (33 or 33 ') to be groomed so as to tend to extend in the circumferential direction of the roll brush rotation shaft (31 or 31').

8. The cleaning assembly according to claim 6, characterized in that the blade (550) is arranged at a side of the cutting member (55) facing the roll brush rotation shaft (31 or 31'), the grooming member (53) comprising teeth (531) arranged at intervals along the blade (550);

wherein the tooth tops of the convex teeth (531) protrude outside the blade part (550) toward the roll brush rotation shaft (31 or 31 ') to guide the roll brush fan (33 or 33 ') to avoid the blade part (550) in the radial direction of the roll brush rotation shaft (31 or 31 ') during rotation of the rotary roll brush (30 or 30 ') around the roll brush rotation shaft (31 or 31 ') in the first rotation direction;

And, tooth grooves (533) exposing the blade part (550) are provided between the convex teeth (531), and the convex teeth (531) are flapped by the rolling brush fan (33 or 33 ') during the rotation of the rotary rolling brush (30) around the rolling brush rotating shaft (31 or 31 ') in the second rotation direction, so that the winding hair attached to the rolling brush fan (33 or 33 ') is hooked on the convex teeth (531), and the winding hair hooked on the convex teeth (531) is guided by the tooth grooves (533) to strike the blade part (550).

9. The cleaning assembly according to claim 5, further comprising a roller brush housing (10), a housing interior (11) of the roller brush housing (10) having a roller brush window (13);

Wherein, one part of the rotary rolling brush (30) is positioned in the inner cavity (11) of the housing, and the other part of the rotary rolling brush protrudes out of the inner cavity (11) of the housing from the rolling brush window (13);

and, the dehairing mechanism (50) further comprises a mounting base plate (51), the cutting member (55) is fixed on the mounting base plate (51) so as to be inserted into the housing cavity (11) through the assembly of the mounting base plate (51) and the rolling brush housing (10);

And the assembly of the mounting base plate (51) with the brush housing (10) is adjustable, wherein:

When the mounting substrate (51) is restrained against the roller brush housing (10) against an external pushing force of elastic prestress, the cutting member (55) is in a state of having the blade portion (550) penetrating into the housing inner cavity (11);

When the mounting substrate (51) is driven by the elastic prestress to leave the roll brush housing (10) due to the disappearance of the external pressing force, the cutting member (55) is in a hidden state of letting the blade portion (550) out of the housing inner cavity (11).

10. The cleaning assembly of claim 9, wherein the dehairing mechanism (50) further comprises a push-pull member (57), wherein:

when the pushing member (57) is restrained in a specified phase by the external pushing force, the pushing member (57) pushes the mounting substrate (51) against the roll brush housing (10);

when the external pushing force disappears, the mounting substrate (51) is driven by the elastic prestress to leave the rolling brush housing (10) and pushes the pushing member (57) to deviate from the specified phase.

11. The cleaning assembly of claim 9, wherein the cleaning assembly comprises,

The external pushing force is generated in response to a first event that allows the sweeping robot to perform a sweeping task;

the external pushing force disappears in response to a second event allowing the housing inner cavity (11) to be cleaned and cured.

12. The cleaning assembly of claim 11, wherein the cleaning assembly comprises,

The cleaning assembly further comprises an inner chamber shield (20) removably mounted to the roller brush window (13), wherein:

Said first event comprising said inner cavity shield (20) being assembled in place with said roll brush window (13);

The second event includes the lumen shroud (20) being detached from the roll brush window (13).

13. A sweeping robot comprising a mobile chassis, a suction assembly, and a sweeping assembly according to any one of claims 1 to 12.

14. The sweeping robot of claim 13, further comprising a processor configured to:

When a cleaning task is received, triggering the mobile chassis to move along a track appointed by the cleaning task, and triggering the driving mechanism (40) to drive the rotary rolling brush (30 or 30') to rotate along the first rotation direction and trigger the suction assembly to operate in the execution period of the cleaning task;

when a triggering event is detected after the cleaning task is completed, the driving mechanism (40) is triggered to drive the rotary rolling brush (30 or 30 ') to rotate along the second rotation direction for a first preset time period, and the suction assembly is in a stop state during the period that the rotary rolling brush (30 or 30') rotates along the second rotation direction.

15. The sweeping robot of claim 14, wherein the processor is further configured to:

After the rotating roller brush (30 or 30 ') rotates in the second rotation direction for the first preset time period, the driving mechanism (40) is triggered to drive the rotating roller brush (30 or 30') to rotate in the first rotation direction for the second preset time period, and the suction assembly is triggered to operate for the second preset time period.