CN214906441U

CN214906441U - Round brush and cleaning device

Info

Publication number: CN214906441U
Application number: CN202121149831.7U
Authority: CN
Inventors: 曾思远; 魏世阳; 赵传涛
Original assignee: Shenzhen Proscenic Technology Co Ltd
Current assignee: Shenzhen Proscenic Technology Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-11-30
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a rolling brush and cleaning equipment, the rolling brush comprises a rolling brush cylinder, a cleaning brush, a screw rod, a scraper and a limit structure, wherein the rolling brush cylinder is hollow and provided with a holding cavity, and the rolling brush cylinder is provided with a guide groove communicated with the holding cavity; the cleaning brush is arranged on the periphery of the rolling brush cylinder; the screw rod is rotatably arranged in the accommodating cavity, is in driving connection with the driving source and can rotate under the driving of the driving source; one end of the scraper is in threaded connection with the screw rod, the other end of the scraper extends out of the guide groove, and the scraper can move in the guide groove in a reciprocating mode; the limiting structure is arranged between the screw rod and the rolling brush cylinder and used for clamping the rolling brush cylinder and the screw rod when the rotating speed of the screw rod is higher than a set rotating speed and releasing the clamping between the screw rod and the rolling brush cylinder when the rotating speed of the screw rod is lower than the set rotating speed. The technical scheme of the utility model the round brush has automatically cleaning hair and long service life's advantage.

Description

Round brush and cleaning device

Technical Field

The utility model relates to an environmental cleaning technical field, in particular to round brush and cleaning equipment.

Background

The existing cleaning equipment, such as a sweeping robot or a dust collector, is generally provided with a rolling brush, and when cleaning, garbage, dust and the like on the ground can be gathered together through the rolling brush so as to be conveniently sucked by a dust suction device.

However, the roller brush of the existing sweeping robot or the existing dust collector is easily wound by hair, so that the rotating speed of the roller brush is reduced, and the cleaning efficiency of the sweeping robot or the existing dust collector is further influenced.

An exemplary technology provides a rolling brush, which includes a rolling brush cylinder, a screw rod and a scraper, wherein the rolling brush cylinder is arranged in a hollow manner, the screw rod is arranged on the rolling brush cylinder, the scraper is connected to the screw rod in a threaded manner and extends out from a guide groove on the rolling brush cylinder, and the screw rod can be kept static when the rolling brush cylinder rotates, so that the scraper can move along the guide groove to cut hairs on the rolling brush cylinder, and the hairs are cleaned.

However, in the process of rotation of the rolling brush, the scraper always moves back and forth along the guide groove, so that abrasion between the scraper and the screw rod is serious, and the service life of the rolling brush is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a round brush, when aiming at realizing the hair self-cleaning on the round brush, prolong the life of round brush.

In order to achieve the purpose, the rolling brush provided by the utility model comprises a rolling brush cylinder, a cleaning brush, a screw rod, a scraper and a limit structure, wherein,

the rolling brush cylinder is hollow and provided with an accommodating cavity, and a guide groove communicated with the accommodating cavity is formed in the rolling brush cylinder;

the cleaning brush is arranged on the periphery of the rolling brush barrel;

the screw rod is rotatably arranged in the accommodating cavity, is used for being in driving connection with a driving source and can rotate under the driving of the driving source;

one end of the scraper is in threaded connection with the screw rod, the other end of the scraper extends out of the guide groove, and the scraper can move in the guide groove in a reciprocating mode;

the limiting structure is arranged between the screw rod and the rolling brush barrel and used for clamping the rolling brush barrel and the screw rod when the rotating speed of the screw rod is higher than a set rotating speed and removing the clamping between the screw rod and the rolling brush barrel when the rotating speed of the screw rod is lower than the set rotating speed.

In one embodiment, the limiting structure includes:

the thrower is movably arranged on the screw rod and can move along the radial direction of the screw rod; and

the pushing part is movably arranged on the rolling brush barrel and can move along the radial direction of the rolling brush barrel, the pushing part is used for applying pushing force back to the barrel wall of the rolling brush barrel to the thrower, wherein,

when the rotating speed of the screw rod is higher than the set rotating speed and the centrifugal force borne by the thrower is larger than the pushing force, the thrower moves towards the direction close to the cylinder wall of the rolling brush cylinder and is clamped with the rolling brush cylinder;

when the rotating speed of the screw rod is lower than the set rotating speed and the centrifugal force borne by the thrower is smaller than the pushing force, the thrower moves towards the direction far away from the cylinder wall of the rolling brush cylinder and is separated from the rolling brush cylinder.

In an embodiment, a first clamping groove is formed in the rolling brush cylinder, and the first clamping groove is used for clamping the thrower.

In an embodiment, the rolling brush barrel comprises a barrel body and an inner ring sleeve, the barrel body is provided with the accommodating cavity, the inner ring sleeve is arranged on the inner side of the barrel body and is arranged at an interval with the barrel body, a first clamping groove is defined between the inner ring sleeve and the barrel body, a notch of the first clamping groove is formed in the inner ring sleeve, and an inner ring surface of the inner ring sleeve can be abutted against an end portion of the thrower, which faces away from the screw rod.

In one embodiment, the rolling brush cylinder further comprises a fixing cap arranged at one end of the rolling brush cylinder, the fixing cap is used for being fixedly connected with cleaning equipment, the pushing piece can be clamped with or separated from the fixing cap, wherein,

when the rotating speed of the screw rod is higher than the set rotating speed, the pushing piece moves towards the direction far away from the screw rod and is separated from the fixing cap;

when the rotating speed of the screw rod is lower than the set rotating speed, the pushing piece moves towards the direction close to the screw rod and is clamped with the fixing cap.

In one embodiment, the pushing member comprises an elastic member and a locking block, and the locking block is movably arranged on the rolling brush cylinder and can be abutted against the thrower; the elastic piece is arranged between the locking block and the cylinder wall of the rolling brush cylinder and used for applying an elastic force to the locking block so as to drive the locking block to move in the direction far away from the cylinder wall of the rolling brush cylinder.

In one embodiment, the locking block is movably arranged in a first clamping groove on the roller brush barrel and can block a notch of the first clamping groove under the action of the elastic piece.

In an embodiment, a second clamping groove is formed in the fixing cap, and the second clamping groove is used for clamping the abutting part.

In an embodiment, the fixing cap includes a cap body and a shaft sleeve, the cap body is hollow, the shaft sleeve is annularly disposed on the inner side of the cap body and is spaced from the cap body, one end of the lead screw is inserted into the shaft sleeve, a plurality of clamping protrusions are disposed on the end surface of the cap body facing the roller brush barrel, the ring sleeve is disposed on the end surface of the cap body, the plurality of clamping protrusions are spaced from the end surface of the cap body, and the second clamping groove is defined between any two adjacent clamping protrusions.

In order to achieve the above object, the present invention further provides a cleaning device, which includes a driving device and the roller brush as described above, wherein the driving device is connected to the roller brush.

According to the rolling brush, the screw rod is arranged in the rolling brush barrel and can be in drive connection with an external drive source, the screw rod is in threaded connection with the scraper, the scraper extends out of the guide groove in the rolling brush barrel, the limiting structure is further arranged between the screw rod and the rolling brush barrel and can be used for clamping the screw rod and the rolling brush barrel when the rotating speed of the screw rod is higher than a set rotating speed and removing the clamping between the screw rod and the rolling brush barrel when the rotating speed of the screw rod is lower than the set rotating speed. So, when a lead screw and a round brush section of thick bamboo joint mutually, the scraper can remain static, when a lead screw and a round brush section of thick bamboo relieve the joint, the scraper can be followed the guide way and removed to the hair of cutting winding on a round brush section of thick bamboo, and then can satisfy the basis of cleaing away the hair, reduce the wearing and tearing of spare parts such as scraper, lead screw, in order to prolong the life of round brush. It can be seen that the rolling brush of the present application has the advantages of self-cleaning of hair, long service life, as compared to conventional rolling brushes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the cleaning apparatus of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the rolling brush of the present invention;

FIG. 3 is a schematic view showing the assembly of the roll brush and the fixing cap in the embodiment of FIG. 2;

FIG. 4 is a schematic structural diagram of a screw rod in the embodiment shown in FIG. 2;

FIG. 5 is a schematic view of the assembly of the thrower and the lead screw of the embodiment shown in FIG. 2;

FIG. 6 is a schematic structural view of the locking cap of the embodiment of FIG. 2;

FIG. 7 is a cross-sectional view of the embodiment shown in FIG. 2, when the rotation speed of the lead screw is higher than the predetermined rotation speed, the spinner is engaged with the roller brush drum;

FIG. 8 is another cross-sectional view of the embodiment shown in FIG. 2, when the rotation speed of the lead screw is higher than the predetermined rotation speed, the spinner is engaged with the roller brush drum;

FIG. 9 is a cross-sectional view of the embodiment shown in FIG. 2 when the screw rod rotates at a speed lower than the predetermined speed and the spinner is separated from the roller;

FIG. 10 is another cross-sectional view of the embodiment shown in FIG. 2 when the screw rod rotates at a speed lower than the predetermined speed and the spinner is separated from the roller;

fig. 11 is an assembly schematic diagram of the pushing member and the fixing cap when the rotation speed of the screw rod is lower than the set rotation speed in the embodiment shown in fig. 2.

The reference numbers illustrate:

10. a roller brush cylinder; 11. a barrel; 11a, a guide groove; 12. an inner ring; 13. a first card slot; 20. cleaning with a brush; 21. a brush; 22. brushing glue; 30. a screw rod; 40. a scraper; 50. a limiting structure; 51. throwing; 52. a pushing member; 521. a locking block; 522. an elastic member; 60. a fixing cap; 61. a cap body, 62, a shaft sleeve; 63. clamping convex; 64. a second card slot; 200. cleaning device

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a rolling brush which can be used for cleaning equipment, such as a sweeper, a dust collector and the like, and when the rolling brush is applied to the dust collector, the rolling brush can be used as a middle sweeper of the sweeper; when the rolling brush is used for a dust collector, the rolling brush can be arranged at an air inlet of a dust collection head of the dust collector.

Specifically, in the embodiment of the present invention, as shown in fig. 1 to 11, the rolling brush includes a rolling brush cylinder 10, a cleaning brush 20, a screw 30, a scraper 40, and a limiting structure 50. Wherein the content of the first and second substances,

the drum 10 is provided in a cylindrical shape, and the drum 10 is rotatably assembled to the cleaning device when assembled with the cleaning device, and in this embodiment, the drum 10 is not connected to a driving source provided to the cleaning device. The roller brush cylinder 10 is hollow to form a containing cavity (not labeled), and the roller brush cylinder 10 is provided with a guide groove 11a communicated with the containing cavity.

The cleaning brush 20 is disposed at the periphery of the rolling brush cylinder 10, and when the rolling brush cylinder 10 is assembled on the cleaning device, the rotation of the rolling brush cylinder 10 drives the cleaning brush 20 to rotate, so as to clean the garbage or the dust.

The screw rod 30 is rotatably disposed in the accommodating cavity, the screw rod 30 extends in the same direction as the guide groove 11a, and a thread groove is formed in the screw rod 30 along the length direction of the screw rod 30. Specifically, in the present embodiment, the screw 30 is used to be in driving connection with the driving source, and can be rotated by the driving source. The drive source is a drive member, typically a motor, provided for the cleaning apparatus for driving the roll brush. Generally, the driving source provided by the cleaning device directly drives the rolling brush cylinder 10 to rotate, and in the present embodiment, the driving source directly drives the lead screw 30 to rotate.

One end of the scraper 40 is in threaded connection with the screw rod 30, so that the scraper 40 can rotate around the screw rod 30, the other end of the scraper 40 extends out of the guide groove 11a, so that the scraper 40 is limited by the guide groove 11a, and the scraper 40 reciprocates in the guide process. Specifically, the screw rod 30 is provided with a first thread groove (not shown) and a second thread groove (not shown) having the same thread pitch and opposite rotation directions, and two ends of the first thread groove are respectively communicated with two ends of the second thread groove through transition curves, so that the scraper 40 can rotate from one of the first thread groove or the second thread groove to the other. In this manner, when one of the screw bar 30 and the drum 10 is stationary and the other is rotated, the scraper 40 can move from one of the first screw groove and the second screw groove to the other, and can reciprocate in the guide groove 11 a.

The limiting structure 50 is arranged between the screw rod 30 and the rolling brush cylinder 10, and the limiting structure 50 is used for clamping the rolling brush cylinder 10 and the screw rod 30 when the rotating speed of the screw rod 30 is higher than the set rotating speed, and releasing the clamping between the screw rod 30 and the rolling brush cylinder 10 when the rotating speed of the screw rod 30 is lower than the set rotating speed. That is, the limiting structure 50 can be used to clamp the lead screw 30 and the roller brush cylinder 10 or the contact lead screw 30 and the roller brush cylinder 10 according to the change of the rotation speed of the lead screw 30.

The set rotation speed is a rotation speed value preset by the factory to trigger the limiting structure 50, and may be adaptively adjusted according to the specific product, which is not specifically limited in this application.

Specifically, since the screw 30 is drivingly connected to the external driving source in the present embodiment, when the roller brush cylinder 10 is engaged with the screw 30, the roller brush cylinder 10 can be driven by the screw 30 to rotate synchronously and in the same direction as the screw 30, and at this time, the position of the scraper 40 on the screw 30 is kept unchanged, i.e. the scraper 40 does not move in the guide groove 11 a. When the drum 10 is separated from the lead screw 30, the drum 10 loses its driving force and remains still, and at this time, if the lead screw 30 continues to rotate, the scraper 40 rotates around the lead screw 30 and moves in the guide groove 11a to cut off the hair wound around the drum 10. By means of the design, the scraper 40 can move on the rolling brush cylinder 10 by means of an external driving source, so that hairs can be cleaned without an integrated power structure of the rolling brush, the structure of the rolling brush is simplified, the volume of the rolling brush is reduced, and the production cost of the rolling brush is reduced.

The limiting structure 50 can clamp the lead screw 30 and the rolling brush cylinder 10 when the rotation speed of the lead screw 30 is lower than the set rotation speed, and can release the clamping between the lead screw 30 and the rolling brush cylinder 10 when the rotation speed of the lead screw 30 is higher than the set rotation speed. Therefore, in practical applications, the set rotation speed may be set to be lower than the rotation speed of the lead screw 30 when the cleaning apparatus performs the cleaning task, that is, the rotation speed of the lead screw 30 when the cleaning apparatus performs the cleaning task is higher than the set rotation speed, so that the scraper 40 and the lead screw 30 can be kept stationary relative to each other when the cleaning apparatus performs the cleaning task. When the hair on the roller brush cylinder 10 needs to be cleaned, for example, after the cleaning device completes the cleaning task or reaches a preset hair cleaning time, the cleaning device can drive the screw rod 30 to rotate at a rotating speed lower than the set rotating speed. Therefore, the hair on the rolling brush can be cleaned automatically, the starting frequency of the scraper 40 can be reduced, the abrasion of the scraper 40, the screw rod 30 and other parts can be reduced on the basis of cleaning the hair, and the service life of the rolling brush can be prolonged.

It should be noted that, after the rolling brush cylinder 10 is released from the clamping connection with the screw rod 30, the rolling brush cylinder 10 can overcome the driving force of the scraper 40 by its own weight to keep still; alternatively, the roller brush 10 may be elastically engaged with the cleaning device or other fixed component, so that the roller brush 10 can be kept still by the elastic engaging force provided by the cleaning device or other fixed component.

It can be understood that, in the rolling brush of the present invention, the lead screw 30 is disposed in the rolling brush cylinder 10, the lead screw 30 can be drivingly connected to an external driving source, the lead screw 30 is threadedly connected to the scraper 40, the scraper 40 extends out from the guide groove 11a of the rolling brush cylinder 10, a limiting structure 50 is further disposed between the lead screw 30 and the rolling brush cylinder 10, and the limiting structure 50 can clamp the lead screw 30 and the rolling brush cylinder 10 when the rotation speed of the lead screw 30 is higher than the set rotation speed, and release the clamping between the lead screw 30 and the rolling brush cylinder 10 when the rotation speed of the lead screw 30 is lower than the set rotation speed. Thus, when the lead screw 30 is engaged with the roller brush cylinder 10, the scraper 40 can be kept still, and when the lead screw 30 is disengaged from the roller brush cylinder 10, the scraper 40 can move along the guide groove 11a to cut hair wound on the roller brush cylinder 10, so that the wear of the components such as the scraper 40 and the lead screw 30 can be reduced on the basis of meeting the requirement of hair removal, and the service life of the roller brush can be prolonged. It can be seen that the rolling brush of the present application has the advantages of self-cleaning of hair, long service life, as compared to conventional rolling brushes.

Specifically, the guide groove 11a extends from one end of the drum 10 to the other end, and it can be understood that the guide groove 11a extends from one end of the drum 10 to the other end, and then the scraper 40 can move from one end of the drum 10 to the other end along the guide groove 11a, so that the moving distance of the scraper 40 on the drum 10 can be increased to cut off hairs on the drum 10 as completely as possible, and the hair removing effect can be improved.

Specifically, the extending direction of the guide groove 11a is parallel to the axial direction of the drum brush 10. With such a design, on the one hand, the moving manner of the scraper 40 can be simplified, and on the other hand, the moving distance required for the guide groove 11a to move from one end of the roller brush cylinder 10 to the other end can be shortened, so that the scraper 40 can cut off the hair on the roller brush cylinder 10 as soon as possible before a large amount of hair is entangled. Of course, the design of the present application is not limited thereto, and in other embodiments, the extending direction of the guide groove 11a may be parallel to the axial direction of the roller brush cylinder 10.

Specifically, a plurality of the cleaning brushes 20 are provided at intervals in the circumferential direction of the drum brush 10, and the guide groove 11a is provided between any adjacent two of the cleaning brushes 20 and avoids the cleaning brushes 20.

Specifically, the sweeping brush 20 includes a plurality of brushes 21 and a plurality of glue brushes 22, the plurality of brushes 21 are arranged at intervals in the circumferential direction of the rolling brush cylinder 10; the plurality of glue brushes 22 are also provided, the plurality of glue brushes 22 are arranged at intervals in the circumferential direction of the rolling brush cylinder 10, and the plurality of glue brushes 22 and the plurality of brushes 21 are sequentially alternated in the circumferential direction of the rolling brush cylinder 10. The guide groove 11a is provided between any adjacent two brushes 21 and glue brush 22. It can be understood that the guide groove 11a is provided between any adjacent two of the cleaning brushes 20 and the guide groove 11a is formed to avoid the cleaning brushes 20, so that the scraper 40 is prevented from moving and interfering with the cleaning brushes 20, and the service life of the roll brush can be prolonged.

Further, the position-limiting structure 50 includes a rotor 51 and a pushing member 52.

The thrower 51 is movably disposed on the lead screw 30 and is movable in a radial direction of the lead screw.

The pushing component 52 is movably disposed on the rolling brush drum 10 and can move along the radial direction of the rolling brush drum 10, the pushing component 52 is used for applying a pushing force to the thrower 51, the pushing force is away from the drum wall of the rolling brush drum 10, wherein,

when the rotating speed of the screw rod 30 is higher than the set rotating speed, the centrifugal force applied to the thrower 51 is greater than the pushing force, and the thrower 51 moves towards the direction close to the cylinder wall of the rolling brush cylinder 10 and is clamped with the rolling brush cylinder 10;

when the rotation speed of the screw 30 is lower than the set rotation speed, the centrifugal force applied to the thrower 51 is smaller than the pushing force, and the thrower 51 moves in a direction away from the wall of the drum 10 and separates from the drum 10.

Specifically, when the lead screw 30 rotates, the thrower 51 is subjected to a centrifugal force in a radial direction of the lead screw 30 and moves away from the lead screw 30 (i.e., moves closer to the wall of the drum 10). The centrifugal force applied to the thrower 51 is larger as the rotation speed of the lead screw 30 is higher, whereas the centrifugal force applied to the thrower 51 is smaller as the rotation speed of the lead screw 30 is lower. The centrifugal force applied to the slinger 51 is directed to the wall of the rolling brush drum 10, while the pushing force applied to the slinger 51 is directed to the wall of the rolling brush drum 10.

Therefore, if the screw rod 30 rotates at a high speed, so that the centrifugal force applied to the thrower 51 is greater than the pushing force of the pushing element 52, the thrower 51 moves away from the screw rod 30 and is engaged with the rolling brush cylinder 10, at this time, the screw rod 30 can drive the rolling brush cylinder 10 to rotate synchronously and in the same direction through the thrower 51, and the rolling brush cylinder 10 can drive the cleaning brush 20 to rotate to perform a cleaning task, wherein the scraper 40 cannot move in the guide groove 11a because the rolling brush cylinder 10 and the screw rod 30 rotate in the same direction and at the same speed, and thus the scraper 40 cannot cut hair.

If the screw rod 30 rotates at a low speed, so that the centrifugal force applied to the thrower 51 is smaller than the pushing force of the pushing member 52, the thrower 51 moves in the direction of the screw rod 30 by the pushing force and is separated from the roller brush cylinder 10, and at this time, the roller brush cylinder 10 loses the driving and remains still. The screw rod 30 is driven by the driving source to rotate continuously, so that the scraper 40 can rotate around the screw rod 30 under the limit of the guide groove 11a and move in the guide groove 11a, hairs on the roller brush cylinder 10 can be cut, the cut hairs can be sucked by a dust suction device of the cleaning equipment, and the hairs on the roller brush can be cleaned automatically.

It can be understood that, by providing the pushing member 52 on the rolling brush cylinder 10 to apply a pushing force to the thrower 51, the thrower 51 can be driven to separate from the rolling brush cylinder 10 by the pushing force, and thus the thrower 51 can be smoothly engaged with or separated from the rolling brush cylinder 10 when the lead screw 30 rotates at different speeds.

It should be noted that the design of the present application is not limited thereto, and in other embodiments, a traction member may be disposed between the thrower 51 and the lead screw 30 to apply a traction force to the lead screw 30, the traction force being directed to the lead screw 30 to drive the thrower 51 to move in a direction approaching the lead screw 30. Thus, when the centrifugal force applied to the thrower 51 is greater than the traction force applied to the thrower 51, the thrower 51 is clamped with the roller brush cylinder 10; when the centrifugal force applied to the slinger 51 is smaller than the traction force applied thereto, the slinger 51 is separated from the drum brush 10. For example, the pulling member may be an elastic element, such as a spring, a spring plate, an elastic pad, etc., disposed between the flail 51 and the lead screw 30, and the flail 51 is pulled by the elastic force of the elastic element; the pulling member may also be two magnetic members respectively disposed on the thrower 51 and the lead screw 30, and the thrower 51 is pulled by the magnetic attraction between the two magnetic members.

Specifically, the roller brush cylinder 10 is provided with a first engaging groove 13, and the first engaging groove 13 is used for engaging with the thrower 51.

It can be understood that the engagement and disengagement of the thrower 51 with and from the roll brush drum 10 can be facilitated by providing the first engaging groove 13 on the roll brush drum 10. Of course, the design of the present application is not limited thereto, and in other embodiments, other engaging structures may be provided on the roller brush cylinder 10 for engaging the thrower 51, for example, a locking protrusion is provided on the roller brush cylinder 10, and a locking groove matched with the locking protrusion is provided on the thrower 51.

Specifically, the rolling brush cylinder 10 includes a cylinder 11 and an inner ring 12 sleeve, the cylinder 11 is formed with an accommodating cavity, the inner ring 12 sleeve is disposed inside the cylinder 11 and is arranged at an interval with the cylinder 11, a first clamping groove 13 is defined between the inner ring 12 sleeve and the cylinder 11, a notch of the first clamping groove 13 is further formed on the inner ring 12 sleeve, and the inner ring 12 surface of the inner ring 12 sleeve can be abutted against the end of the thrower 51 facing away from the screw rod 30.

It can be understood that the thrower 51 is abutted against the inner ring 12 surface of the inner ring 12 sleeve when the fixing cap 60 is engaged with the thrower 51, that is, when the lead screw 30 rotates at a low speed, the inner ring 12 surface of the inner ring 12 sleeve is abutted against the thrower 51 in real time, so that the thrower 51 is kept engaged with the fixing cap 60, thereby facilitating to simplify the structure and size of the abutting member 52. When the screw rod 30 rotates at a high speed, the thrower 51 moves along the inner ring 12 surface of the inner ring 12 sleeve along with the rotation of the screw rod 30 until moving to the notch of the first locking groove 13 and entering the first locking groove 13 from the notch.

Further, the rolling brush cylinder 10 of the present application further includes a fixing cap 60 disposed at one end of the rolling brush cylinder 10, the fixing cap 60 is used for being fixedly connected with a cleaning device, the pushing member 52 can be further connected with or separated from the fixing cap 60 in a clamping manner, wherein,

when the rotating speed of the screw rod 30 is higher than the set rotating speed, the pushing piece 52 moves away from the screw rod 30 and is separated from the fixing cap 60;

when the rotation speed of the screw rod 30 is lower than the set rotation speed, the pushing element 52 moves towards the screw rod 30 and is clamped with the fixing cap 60.

Specifically, when the rotation speed of the lead screw 30 is higher than the set rotation speed, the centrifugal force applied to the thrower 51 is greater than the pushing force, at this time, the thrower 51 is separated from the roller brush cylinder 10, and the pushing member 52 is engaged with the fixing cap 60, because the fixing cap 60 can be fixed compared to the cleaning device after the roller brush and the cleaning device are assembled, after the pushing member 52 is engaged with the fixing cap 60, when the lead screw 30 rotates, the fixing cap 60 provides a limit for the roller brush cylinder 10 to overcome the driving force applied by the scraper 40, so that the roller brush cylinder 10 remains stationary. In this way, the roller brush cylinder 10 may not rely on its own weight to be stationary compared to the lead screw 30, which may reduce the weight requirement for the roller brush cylinder 10. Therefore, the light-weight design of the rolling brush is facilitated, and the manufacturing cost of the rolling brush is reduced.

When the rotation speed of the screw rod 30 is lower than the set rotation speed, the centrifugal force applied to the thrower 51 is smaller than the pushing force, and at this time, the thrower 51 is clamped with the rolling brush cylinder 10, and the pushing member 52 is separated from the fixing cap 60, so that the rolling brush cylinder 10 and the screw rod 30 can rotate synchronously.

Specifically, the pushing element 52 includes an elastic element 522 and a locking element 521, and the locking element 521 is movably disposed on the roller brush cylinder 10 and can be abutted against the thrower 51; the elastic member 522 is disposed between the locking block 521 and the wall of the roller brush 10, and the elastic member 522 is used for applying an elastic force to the locking block 521 to drive the locking block 521 to move away from the wall of the roller brush 10.

With the above structure, the pushing member 52 can push the thrower 51 through the locking block 521, and the elastic member 522 can provide a required pushing force for the locking block 521. Of course, the design of the present application is not limited thereto, and in other embodiments, the pushing element 52 may also be configured as a magnetic element, and correspondingly, the thrower 51 may also be configured as a magnetic element, and a repulsive force exists between the pushing element 52 and the thrower 51, so that the pushing element 52 can push the thrower 51 by the repulsive force.

Alternatively, the elastic member 522 may be a spring, a spring plate, an elastic pad, or the like.

Optionally, the locking block 521 is movably disposed in the first locking groove 13 of the roller brush cylinder 10, and can block the notch of the first locking groove 13 under the action of the elastic member 522. Accordingly, the elastic member 522 is also disposed in the first card slot 13.

With the above structure, since the notch of the first engaging groove 13 is formed to be fitted with the inner ring 12, and the locking block 521 can block the notch of the first engaging groove 13 under the action of the elastic member 522, when the lead screw 30 rotates at a high speed, the thrower 51 can push the locking block 521 to enter the first engaging groove 13; when the lead screw 30 rotates at a low speed, the locking block 521 can push the locking block 521 out of the first engaging groove 13 under the action of the elastic member 522, so that the thrower 51 is separated from the roll brush cylinder 10. By the design, the structure of the roller brush barrel 10 can be simplified and the volume of the roller brush barrel 10 can be reduced on the basis of realizing the clamping connection and the separation of the thrower 51 and the roller brush barrel 10. Of course, the design of the present application is not limited thereto, and in other implementations, the pushing element 52 may be directly disposed at other positions of the roller brush cylinder 10.

Specifically, the fixing cap 60 is provided with a second engaging groove 64, and the second engaging groove 64 is used for engaging with the pushing element 52.

It can be understood that, by providing the second engaging groove 64 on the fixing cap 60, the abutting part 52 can be conveniently engaged with and separated from the fixing cap 60, and of course, the design of the present application is not limited thereto, and in other embodiments, other engaging structures may be provided on the fixing cap 60 for engaging the abutting part 52, such as a protruding portion provided on the fixing cap 60, and an engaging groove provided on the abutting part 52 and matching with the protruding portion.

Specifically, the fixing cap 60 includes a cap body 61 and a shaft sleeve 62, the cap body 61 is hollow, the shaft sleeve 62 is disposed around the inner side of the cap body 61 and spaced from the cap body 61, one end of the lead screw 30 is inserted into the shaft sleeve 62, a plurality of clamping protrusions 63 are disposed on the end surface of the cap body 61 facing the rolling brush drum 10, the plurality of clamping protrusions 63 are spaced from the rolling brush drum 10, and a second clamping groove 64 is defined between any two adjacent clamping protrusions 63. Thus, a plurality of second engaging grooves 64 may be formed on the fixing cap 60, and thus, the rotor 51 may be engaged with any one of the second engaging grooves 64 to achieve the engagement with the fixing cap 60, so as to facilitate the engagement between the rotor 51 and the fixing cap 60.

The utility model discloses still provide a cleaning device 200, this cleaning device 200 includes drive arrangement and round brush, and this drive arrangement is connected with the round brush drive, and the concrete structure of this round brush refers to above-mentioned embodiment, because this cleaning device 200 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and it is here no longer repeated one by one.

Illustratively, the cleaning device 200 may be a sweeping robot, a vacuum cleaner, or the like.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A roll brush, comprising:

the cleaning brush is arranged on the periphery of the rolling brush cylinder;

the screw rod is rotatably arranged in the accommodating cavity, is in driving connection with a driving source and can rotate under the driving of the driving source;

one end of the scraper is in threaded connection with the screw rod, the other end of the scraper extends out of the guide groove, and the scraper can move in the guide groove in a reciprocating mode; and

2. The roller brush according to claim 1 wherein said limiting structure comprises:

when the rotating speed of the screw rod is higher than the set rotating speed, the centrifugal force borne by the thrower is larger than the pushing force, and the thrower is clamped with the rolling brush barrel in the direction close to the barrel wall of the rolling brush barrel;

when the rotating speed of the screw rod is lower than the set rotating speed, the centrifugal force borne by the thrower is smaller than the pushing force, and the thrower moves towards the direction far away from the cylinder wall of the rolling brush cylinder and is separated from the rolling brush cylinder.

3. The round brush according to claim 2, wherein the round brush barrel is provided with a first clamping groove, and the first clamping groove is used for clamping the thrower.

4. The rolling brush according to claim 3, wherein the rolling brush barrel comprises a barrel body and an inner ring sleeve, the barrel body is provided with the accommodating cavity, the inner ring sleeve is arranged inside the barrel body and is spaced from the barrel body, the first clamping groove is defined between the inner ring sleeve and the barrel body, a notch of the first clamping groove is formed in the inner ring sleeve, and an inner ring surface of the inner ring sleeve can abut against an end of the thrower facing away from the screw rod.

5. The round brush according to claim 2, wherein the round brush barrel further comprises a fixing cap provided at one end of the round brush barrel, the fixing cap is used for fixedly connecting with a cleaning device, the pushing member is also capable of being clamped with or separated from the fixing cap, wherein,

6. The rolling brush according to claim 5 wherein the pushing member comprises an elastic member and a locking piece, the locking piece is movably disposed on the rolling brush barrel and can be abutted against the thrower; the elastic piece is arranged between the locking block and the cylinder wall of the rolling brush cylinder and used for applying an elastic force to the locking block so as to drive the locking block to move in the direction far away from the cylinder wall of the rolling brush cylinder.

7. The roller brush according to claim 6 wherein the locking piece is movably disposed in a first slot of the roller brush, and is adapted to block a notch of the first slot by the elastic member.

8. The rolling brush according to claim 5 wherein the fixing cap is provided with a second slot for the engaging of the pushing member.

9. The round brush according to claim 8, wherein the fixing cap comprises a cap body and a shaft sleeve, the cap body is hollow, the shaft sleeve is arranged at the inner side of the cap body in a surrounding manner and is spaced from the cap body, one end of the lead screw is inserted into the shaft sleeve, the shaft sleeve is arranged on the end surface of the cap body facing the round brush barrel and is provided with a plurality of clamping protrusions, the clamping protrusions are arranged at intervals on the end surface of the cap body, and the second clamping groove is defined between any two adjacent clamping protrusions.

10. A cleaning device comprising a drive means and a roller brush according to any one of claims 1 to 9, said drive means being in driving connection with said roller brush.