CN211796225U - Round brush subassembly and mobile device - Google Patents

Abstract

The utility model provides a round brush subassembly and mobile device, including round brush, power transmission, set up the one end at the round brush, power transmission includes casing, bearing, power take off wheel and pivot, wherein, power take off wheel fixed connection the pivot, bearing fixed mounting is on the casing, the pivot is passed the bearing hole drives the round brush rotation. The technical scheme can effectively avoid the condition that the rolling brush fails to rotate due to the fact that linear objects such as hairs and strings enter the power transmission device, and has good safety and reliability.

Description

Round brush subassembly and mobile device

Technical Field

The utility model relates to a clean field of family especially relates to a round brush subassembly and mobile device.

Background

For example, the surface cleaning robot generally includes a main body and a rolling brush disposed on the main body, and the rolling brush is used for contacting with a surface to be cleaned so as to lift dirt, dust or impurities on the surface to be cleaned and suck the dirt, dust or impurities into the main body for cleaning.

In the family life, flexible linear objects such as hair, strings and the like are often wound on a rolling brush along with the rotation of the rolling brush on movable equipment, the rolling brush is driven by a driving device such as a motor and the like, a power transmission device is usually arranged between the driving device and the rolling brush to transmit power, the power transmission device transmits power through one or more transmission gears, and an output gear in the transmission gears is connected with the rolling brush through a power output shaft to drive the rolling brush to rotate.

The power output wheel in the power transmission device is buckled on the shell of the power transmission device, so that flexible linear objects such as hairs and strings enter the power transmission device through a gap between the power output wheel and the shell and are wound on a transmission gear of the power transmission device, and the situations that the transmission gear is blocked and the rolling brush fails to rotate easily occur.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to solve the above problems or at least partially solve the above problems, and a roll brush assembly and a movable apparatus.

An embodiment of the utility model provides an aspect provides a round brush subassembly, include:

rolling and brushing;

the power transmission device is arranged at one end of the rolling brush and comprises a shell, a bearing, a power output wheel and a rotating shaft;

the power output wheel is fixedly connected with the rotating shaft, the bearing is fixedly installed on the shell, and the rotating shaft penetrates through the inner hole of the bearing to drive the rolling brush to rotate.

Furthermore, the bearing comprises a rotating ring, a fixed ring and a rolling body arranged between the rotating ring and the fixed ring, and a blocking part is arranged between the rotating ring and the fixed ring; when the power output wheel drives the rotating shaft to rotate, the rotating ring rotates relative to the fixed ring, and the bearing blocks the flexible linear substance from entering the shell through the blocking part.

Further, the power output wheel abuts against a rotating ring of the bearing.

Furthermore, the blocking part is clamped between the rotating ring and the fixed ring, and the rotating ring, the fixed ring and the blocking part enclose an inner cavity for the rolling body to accommodate.

Further, the power transmission device further includes: the power input wheel and the power output wheel are in synchronous transmission, and the power input wheel rotates to drive the power output wheel and the rotating shaft to rotate so as to drive the rolling brush to rotate.

Further, the bearing is located between the rotating shaft and the shell.

Furthermore, the blocking part is fixedly connected with the fixing ring or integrally formed, and the blocking part is in clearance fit with the rotating ring.

Further, a lubricating oil layer is provided in the inner cavity to block the flexible thread-like substance from entering the housing.

Further, the rotating ring is in interference fit with the rotating shaft.

Furthermore, a first accommodating groove used for accommodating the bearing is formed in the inner side wall of the shell, and the first accommodating groove is fixedly matched with a fixing ring of the bearing.

Further, the first accommodating groove is located in the power output wheel.

Further, the bearing is a ball bearing, the rotating ring is an inner ring, the fixed ring is an outer ring, and the rolling body is a ball.

Furthermore, the blocking part is in a circular ring sheet shape, and the axis of the circle center of the blocking part is superposed with the axis of the power output shaft;

one end of the blocking part is in clearance fit with the rotating ring, and the other end of the blocking part is fixedly connected with the fixing ring or integrally formed with the fixing ring.

Furthermore, the rolling brush device also comprises a rolling brush support, one end of the rolling brush support is connected with the rotating shaft, and the other end of the rolling brush support is connected with the rolling brush.

Furthermore, a transmission sleeve is arranged between the rolling brush support and the rotating shaft, the transmission sleeve is connected with the rotating shaft, and the rolling brush support is connected with the rotating shaft through the transmission sleeve.

Furthermore, preset gaps are formed between the rolling brush support and the shell and between the transmission sleeve and the shell.

Further, in the above-mentioned case,

the rolling brush support is provided with a second accommodating groove used for accommodating the transmission sleeve, the transmission sleeve is accommodated in the second accommodating groove, and the transmission sleeve is detachably connected with the rolling brush support.

Furthermore, the transmission sleeve is in interference fit with the second accommodating groove, and interference is smaller than a preset value, so that the transmission sleeve is detachably connected with the rolling brush support.

Further, the cross-sectional dimension of the second accommodating groove gradually increases from the direction close to the rolling brush to the direction away from the rolling brush.

Further, the casing includes casing and lower casing, go up the casing with the casing is dismantled and is connected down, first holding tank is located casing down.

Further, the power transmission device also comprises a driving device used for providing power, the driving device is connected with the power input wheel, and the power input wheel is positioned in the shell.

Further, the transmission mode between the power input wheel and the power output wheel is belt transmission or meshing transmission.

Furthermore, the length direction of the driving device extends along the direction of the rolling brush and is parallel to the axial direction of the rolling brush.

An embodiment of the second aspect of the utility model provides a round brush subassembly, include:

the rolling brush is provided with a rotating shaft;

the power transmission device is arranged at one end of the rolling brush and comprises a shell, a bearing and a power output wheel;

the power output wheel is fixedly connected with the rotating shaft, the bearing is fixedly installed on the shell, and the rotating shaft penetrates through the inner hole of the bearing to drive the rolling brush to rotate.

An embodiment of the third aspect of the present invention provides a mobile device, including: the rolling brush device comprises a chassis, an upper cover and the rolling brush assembly, wherein the chassis is provided with an accommodating cavity for accommodating the rolling brush assembly, and the rolling brush assembly is detachably accommodated in the accommodating cavity.

The embodiment of the utility model provides a round brush subassembly and mobile device, because the round brush subassembly includes the round brush, power transmission includes the casing, a bearing, power take off wheel and pivot, block hair on the round brush, during threadiness material such as string gets into power transmission through the bearing, can effectively prevent because the drive wheel winding threadiness thing among the power transmission blocks die, and then lead to the condition that the round brush rotation became invalid, effectively improved the security and the reliability of round brush subassembly and mobile device.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a partial cross-sectional view of a rolling brush assembly of a mobile device provided by an embodiment of the present invention;

fig. 3 is a side cross-sectional view of a rolling brush assembly of a mobile device provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a mobile device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a chassis of a mobile device according to an embodiment of the present invention;

fig. 6 is a first schematic state diagram of a chassis of a mobile device in a process of taking out a rolling brush according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a state of the chassis of the movable device in the process of taking out the rolling brush according to the embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

Furthermore, the term "coupled" is intended to include any direct or indirect coupling. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices. The following description is of the preferred embodiment of the present invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Example one

Fig. 1 is a schematic structural diagram of a rolling brush assembly of a mobile device according to an embodiment of the present invention; fig. 2 is a partial cross-sectional view of a rolling brush assembly of a mobile device provided by an embodiment of the present invention; fig. 3 is a side cross-sectional view of a rolling brush assembly of a mobile device according to an embodiment of the present invention. Referring to fig. 1 to 3, a rolling brush assembly 100 according to the present embodiment includes: a roller brush 10 and a power transmission device 20.

The roll brush assembly 100 of the present embodiment may be used to be installed in a mobile device, wherein the mobile device may include a self-moving cleaning robot, a manually-moved handheld vacuum cleaner, and the like, the roll brush assembly 100 is installed in a main body of the mobile device, the roll brush 10 in the roll brush assembly 100 is rotated by the power transmission device 20, the rotating roll brush 10 picks up garbage on a surface to be cleaned or wipes stains on the surface to be cleaned when the mobile device is forward for cleaning, and there may be a flexible linear object such as hair, string, and the like wound around the roll brush 10 in general household cleaning. However, the present embodiment aims to solve the technical problem that when the rolling brush assembly 100 in the prior art cleans a surface to be cleaned, flexible linear objects such as hairs and strings are wound around the rolling brush 10 and enter the power transmission device 20 through the rolling brush 10, and since the power transmission device 20 at least comprises a rotating shaft and a power output wheel connected to the rotating shaft, the flexible linear objects such as hairs and strings are easily wound around the power output wheel, and the power output wheel is stuck, which finally results in rotation failure of the rolling brush 10.

Specifically, the power transmission device 20 in the present embodiment is disposed at one end of the roll brush 10, and the power transmission device 20 includes a housing 21, a power output wheel 22, a rotating shaft 23, and a bearing 30.

The power output wheel 22 and the rotating shaft 23 may be integrally formed or fixedly connected, the bearing 30 is fixedly installed on the housing 21, and the rotating shaft 23 passes through an inner hole of the bearing 30 to drive the rolling brush 10 to rotate. The rotating shaft 23 of the power transmission device 20 is connected to one end of the roll brush 10 during the process of being mounted with the roll brush 10, and when the roll brush 10 needs to be removed, the power transmission device 20 with the rotating shaft 23 can be removed from one end of the roll brush 10 as a whole.

In other embodiments, the rotating shaft 23 may be a part of the roller brush 10, that is, the roller brush 10 has the rotating shaft 23, the rotating shaft 23 and the roller brush 10 may be non-detachably connected, and the power transmission device 20 does not include the rotating shaft. In the process of mounting the power transmission device 20 and the roller brush 10 together, the rotating shaft 23 of the roller brush 10 is connected with the power output wheel 22 of the power transmission device 20, and when the roller brush 10 needs to be dismounted, the roller brush 10 with the rotating shaft 23 can be dismounted from the power transmission device 20 integrally.

The power output wheel 22 can be located in the housing 21, one end of the rotating shaft 23 can be fixedly connected with the power output wheel 22, and the other end of the rotating shaft 23 can penetrate out of the housing 21 and is fixedly connected with the rolling brush 10 to drive the rolling brush 10 to rotate, wherein a through hole 210 for the rotating shaft 23 to penetrate out can be formed in the housing 21, and the aperture of the through hole 210 is slightly larger than the diameter of the rotating shaft 23, so that the rotating shaft 23 can penetrate through and the rotating shaft 23 can rotate in the through hole 210.

The housing 21 may include an upper housing 211 and a lower housing 212, and the upper housing 211 and the lower housing 212 may be detachably coupled. The detachable connection manner may be that the upper housing 211 and the lower housing 212 may be detachably connected by a fastener such as a screw, or detachably connected by a snap. The upper housing 211 and the lower housing 212 are fastened to form a cavity 213, and a plurality of driving wheels may be disposed in the cavity 213, wherein the plurality of driving wheels at least may include a power output wheel 22 and a power input wheel 24, the power output wheel 22 may be fixedly connected to the rotating shaft 23, the power input wheel 24 may be fixedly connected to a driving shaft of the driving device 40, and the driving device 40 may be a motor. The power input wheel 24 can be synchronously driven with the power output wheel 22, and the power input wheel 24 rotates to drive the power output wheel 22 and the rotating shaft 23 to rotate so as to drive the rolling brush 10 to rotate. In the present embodiment, preferably, the longitudinal direction of the driving device 40 may extend along the direction of the roller brush 10 and parallel to the axial direction of the roller brush 10. In this way, as shown in fig. 1 and 2, the driving device 40 can be arranged parallel to the rolling brush 10, the layout is reasonable, and the installation space for installing the rolling brush assembly in the movable equipment can be saved as much as possible.

The transmission mode between the power input wheel 24 and the power output wheel 22 may be belt transmission or gear meshing transmission, in this embodiment, the transmission mode between the power input wheel 24 and the power output wheel 22 is belt transmission, as shown in fig. 1, a preset gap is maintained between the power input wheel 24 and the power output wheel 22, the power input wheel 24 and the power output wheel 22 are connected and transmitted through a belt 25, and the belt transmission mode has the advantages of smooth transmission and low transmission noise compared with the gear meshing transmission mode.

In other embodiments, at least one intermediate wheel may be disposed between the power input wheel 24 and the power output wheel 22, power may be transmitted between the power input wheel 24 and the power output wheel 22 through the intermediate wheel, and the transmission manner between the power input wheel 24 and the intermediate wheel, between the intermediate wheel and the intermediate wheel, and between the intermediate wheel and the power output wheel 22 may be a belt transmission or a gear engagement transmission, which may be selected by those skilled in the art according to specific needs.

The round brush subassembly that this embodiment provided, because the round brush subassembly includes the round brush, power transmission includes the casing, a bearing, power take off wheel and pivot, the bearing is fixed on the casing, the pivot passes the bearing hole and drives the round brush rotation, can effectively block hair on the round brush, during threadiness material such as string gets into power transmission through the bearing, can effectively prevent to block because the drive wheel twines threadiness in the power transmission and dies, and then lead to the condition that the round brush rotation became invalid, the security and the reliability of round brush subassembly and mobile device have effectively been improved. Based on the above embodiment, specifically, the bearing 30 may be located between the power output wheel 22 and the housing 21, the bearing 30 may include the rolling element 31, and the rotating ring 33 and the fixed ring 32 coaxially sleeved, and the blocking portion 34 provided between the rotating ring 33 and the fixed ring 32, and the rolling element 31 is provided between the rotating ring 33 and the fixed ring 32 to enable the rotating ring 33 to rotate relative to the fixed ring 32. The bearing 30 has an inner surface in contact with the power output shaft 22 and an outer surface in contact with an inner side wall of the housing 21. In the present embodiment, the bearing 30 is preferably a ball bearing, the rotating ring 33 is an inner ring, the fixed ring 32 is an outer ring, and the rolling elements 31 are preferably balls. The plurality of balls may be evenly distributed circumferentially between the rotating ring 33 and the fixed ring 32 centering on the axes of the inner and outer rings. Optionally, the bearing 30 is a roller bearing, the rolling ring 32 is an inner ring, the fixed ring 32 is an outer ring, the rolling body 31 is a roller, and a plurality of rollers may be circumferentially and uniformly distributed between the rotating ring 33 and the fixed ring 32 with the axis of the inner ring and the axis of the outer ring as a center. Compared with a roller bearing, the ball bearing is in point contact with the inner ring and the outer ring, the roller bearing is in line contact with the inner ring and the outer ring, the friction resistance of the ball bearing is smaller, the power consumption is small, and the mechanical efficiency is higher. The rotating ring 33 is sleeved on the rotating shaft 23 and fixedly connected with the rotating shaft 23, the fixed ring 32 is fixedly connected with the shell 21, and when the rotating ring 33 rotates relative to the fixed ring 32, a blocking part 34 for blocking the flexible thread-shaped substance from entering between the rotating ring 33 and the fixed ring 32 is arranged between the rotating ring 33 and the fixed ring 32. Specifically, as shown in fig. 2, one possible embodiment is that one end of the blocking portion 34 is fixedly connected to or integrally formed with the fixing ring 32, the other end of the blocking portion 34 is in clearance fit with the rotating ring 33, and the clearance between the blocking portion 34 and the rotating shaft of the rotating ring 33 is not enough for the flexible thread to enter the housing.

The fixed ring 32, the rotating ring 33 and the blocking portion 34 may together enclose an inner cavity for accommodating the rolling element 31, and a lubricating oil layer may be provided in the inner cavity, through which the flexible thread-like substance may be further hindered from entering the housing 21. The lubricating oil layer is formed by filling lubricating oil into the inner cavity of the bearing.

Further, for example, the fixed ring 32 includes a first extending portion, the first extending portion may be formed by the fixed ring 33 extending radially inward to contact with the outer edge of the rotating ring 32, the first extending portion forms a blocking portion 34, the blocking portion 34 is integrally formed or fixedly connected with the fixed ring 32, the blocking portion 34 is in clearance fit with the rotating ring 33, a clearance between the blocking portion 34 and the rotating ring 33 is not enough for the flexible thread to enter the housing, and the inner cavity of the bearing may also have a layer of lubricating oil, and the lubricating oil may also block the flexible thread from entering, thereby preventing the flexible thread from entering the interior of the housing. The blocking portion 34 may be in the shape of a circular ring, and the axis of the center of the blocking portion 34 coincides with the axis of the rotating shaft, and the blocking portion 34 is embedded between the rotating ring 33 and the fixed ring 32 without increasing the axial thickness of the bearing 30.

In addition, the power output wheel 22 may abut against the rotating ring 33 of the bearing 30 in the axial direction. Since the bearing 30 is fixedly connected to the housing 21, the power take-off wheel 22 abuts against the rotating ring 33 of the bearing 30, and the power take-off wheel 22 is fixed to the rotating shaft 23, so that the positions of the rotating shaft 23 and the bearing 30 in the axial direction can be kept unchanged. The power output wheel 22, the rotating ring 33 of the bearing 30 and the rotating shaft 23 rotate together, and abrasion is not generated among the three.

The stopper 34 is interposed between the rotating ring 33 and the fixed ring 32, and the rotating ring 33, the fixed ring, and the stopper 34 enclose an inner cavity in which the rolling elements 31 are accommodated. Thus, the stopper 34 is located between the rotating ring 33 and the fixed ring 32 without contacting the rotating shaft 23, and thus the stopper 34 is not worn by the rotation of the rotating shaft 23.

It should be noted that "clamping" herein merely indicates the relative positional relationship among the stopper 34, the rotating ring 33, and the fixing ring 32, and does not indicate that the rotating ring 33 and the fixing ring 32 apply a clamping force or an abutting force to the stopper 34.

In the rolling brush assembly provided by this embodiment, the bearing 30 further includes a rotating ring 33, a fixed ring 32, a rolling body 31 and a blocking portion 34, one end of the blocking portion 34 is fixedly connected or integrally formed with the fixed ring 32, the other end of the blocking portion 34 is in clearance fit with the rotating ring 33, the rotating ring 33 is fixedly connected with the rotating shaft, the fixed ring 32 is fixedly connected with the housing, the rolling body 31 is disposed between the rotating ring 33 and the fixed ring 32 so that the rotating ring 33 can rotate relative to the fixed ring 32, the rotating shaft penetrates through the housing and is connected with the rolling brush, the rotating shaft rotates to drive the rotating ring 33 and the rolling brush to rotate, the fixed ring and the housing are stationary, hair, strings and other linear substances cannot enter the housing, the blocking portion 34 is in clearance fit with the rotating ring 33, the blocking portion blocks the hair, strings and other linear substances on the rolling brush from entering the power transmission device, and can effectively prevent the transmission wheel in the power transmission, thereby leading to the condition that the rolling brush is failed in rotation and effectively improving the safety and the reliability of the rolling brush assembly.

In the above embodiment, the rotating ring 33 may be interference-fitted with the rotating shaft 23. The rotating ring 33 is in interference fit with the rotating shaft 23, the stress is balanced in the circumferential direction of the rotating ring 33, the rotating ring 33 and the rotating shaft 23 can be well guaranteed to be concentric, the reliability is good after connection, the rotating ring 33 and the rotating shaft 23 are not prone to movement, and torque can be reliably transmitted. Of course, the fixed connection mode of the rotating ring 33 and the rotating shaft 23 may further include fastener connection, key connection, clamping, etc., and this embodiment is not particularly limited as long as the rotating shaft 23 can rotate to drive the rotating ring 33 to rotate synchronously, and there is no relative rotation between the two.

As shown in fig. 2 and 3, further, the inner side wall of the housing 21 may have a first receiving groove 214 for receiving the bearing 30, and the first receiving groove 214 is in interference fit with the fixed ring 32 of the bearing 30. Specifically, a cylindrical body protruding toward the cavity 213 may be formed on the inner side wall of the housing 21, and the cylindrical body and the inner side wall of the housing 21 enclose a first receiving groove 214. The retainer ring 32 of the bearing 30 is in interference fit with the first accommodating groove 214, the circumferential stress of the retainer ring 32 is uniform, and the retainer ring 32 can be stably fixed on the housing 21.

In this embodiment, the first receiving groove 214 may be located in the power output wheel 22, the power output wheel 22 may be a cylindrical structure with a hollow inside, so as to form an inner cavity on the power output wheel 22, and the portion of the housing 21 having the first receiving groove 214 may extend into the inner cavity of the power output wheel 22, so that the first receiving groove 214 is located in the power output wheel 22, thereby making the overall structure more compact and reducing the overall thickness of the power transmission device.

More specifically, the first receiving groove 214 may be located on the lower case 212, and a protrusion protruding toward the upper case 211 may be provided on an inner sidewall of the lower case 212, and the first receiving groove 214 may be opened on the protrusion.

The rolling brush assembly provided by the embodiment further comprises a rolling brush support 51, wherein one end of the rolling brush support 51 is connected with the rotating shaft 23, and the other end of the rolling brush support 51 is connected with the rolling brush 10. Preferably, the roll brush holder 51 may be detachably coupled to the roll brush 10, as shown in fig. 3, the roll brush holder 51 may be threadedly coupled to the roll brush 10 by a screw a to facilitate assembly of the roll brush holder 51 and installation of the roll brush, and the screw a may be coaxial with the roll brush 10, so that the roll brush holder 51 may be fastened at a central axis and the roll brush holder 51 may be uniformly stressed in a circumferential direction.

A transmission sleeve 52 is arranged between the rolling brush support 51 and the rotating shaft 23, the rolling brush support 51 is connected with the rolling brush 10, the transmission sleeve 52 is connected with the rotating shaft 23, and the rolling brush support 51 is connected with the rotating shaft 23 through the transmission sleeve 52. Similarly, the driving sleeve 52 may have a slot for receiving an end of the rotating shaft 23, and the rotating shaft 23 may be in interference fit with the slot. The rolling brush bracket 51 is provided with a second accommodating groove 511 for accommodating the transmission sleeve 52, the transmission sleeve 52 is accommodated in the second accommodating groove 511, and the transmission sleeve 52 is detachably connected with the rolling brush bracket 51. The driving sleeve 52 is detachably coupled to the brush holder 51 to facilitate the removal of the brush 10.

Preferably, the driving sleeve 52 may be in interference fit with the second receiving groove 511, and the interference is smaller than a preset value, so that the driving sleeve 52 is detachably connected with the rolling brush holder 51. The driving sleeve 52 is in interference fit with the second receiving groove 511 to ensure that the driving sleeve 52 can transmit the torque of the rotating shaft 23 to the rolling brush support 51 and the rolling brush 10, and when the interference is smaller than the preset value, the driving sleeve 52 can be disengaged from the rolling brush support 51 when the external force is greater than the preset value, so as to facilitate the rolling brush 10 to be taken out of the movable equipment.

Further, as shown in fig. 3, a predetermined gap x is formed between the rolling brush holder 51 and the housing 21, and between the driving sleeve 52 and the housing 21. The preset gap x enables the flexible linear object such as hair, string and the like wound on the roller brush 10 to flow (as shown by the arrow in fig. 3 is the flow direction of the flexible linear object) to the preset gap x through the rotation of the roller brush 10 and be accommodated in the preset gap x, and due to the blocking of the bearing 30, the flexible linear object cannot continuously flow to the power output wheel 22 of the power transmission device 20, so that the power output wheel 22 cannot be jammed, that is, the transmission of the whole power transmission device 20 cannot be influenced, and the rotation of the roller brush 10 cannot be influenced.

In addition, the flow path of the flexible wire guided by the preset gap x may be curved, so that the flow path of the flexible wire in the preset gap x may be extended as long as possible in a limited space, and the accommodating space of the flexible wire is larger, so as to accommodate more flexible wires.

When the flexible threads such as hair and string in the preset gap x need to be cleaned, the transmission sleeve 52 and the power transmission device 20 can be separated from the rolling brush support 51 and the rolling brush 10 together, the rolling brush 10 can be taken out, and the transmission sleeve 52 can be taken down through tilting, so that the preset gap x is exposed, and an operator can clean the flexible threads such as hair and string in the preset gap x conveniently.

As shown in fig. 3, the sectional size of the second receiving groove 511 is gradually increased from the direction close to the roll brush 10 to the direction away from the roll brush 10. Fig. 6 is a first schematic state diagram of a chassis of a mobile device in a process of taking out a rolling brush according to an embodiment of the present invention; fig. 7 is a schematic diagram of a state of the chassis of the movable device in the process of taking out the rolling brush according to the embodiment of the present invention. Fig. 6 shows a state in which the right end of the roll brush is taken out of the housing chamber 101, and fig. 7 shows a state in which the left end of the roll brush is also taken out of the housing chamber 101. The rolling brush assembly 100 is installed in a movable apparatus, when the rolling brush 10 is assembled, the left end of the rolling brush 10 is firstly installed in the accommodating cavity 101 for accommodating the rolling brush 10 on the movable apparatus, and when the rolling brush 10 is installed, since the sectional size of the second accommodating groove 511 is gradually increased from the direction close to the rolling brush 10 to the direction away from the rolling brush 10, the rolling brush support 51 can be conveniently and smoothly installed to be matched with the transmission sleeve 52. And the right end of the roll brush 10 may be placed in a catch at the right end of the receiving chamber 101. When the rolling brush 10 is disassembled, as shown in fig. 6, the right end of the rolling brush 10 can be taken out first, and then the rolling brush 10 can be taken out by pulling out the left end (as shown in fig. 7) of the rolling brush 10 towards the upper right direction with force, i.e. the rolling brush support 51 is separated from the transmission sleeve 52, because the sectional dimension of the second accommodating groove 511 is gradually increased from the direction close to the rolling brush 10 to the direction away from the rolling brush 10, the rolling brush support 51 is more conveniently guided to be separated from the transmission sleeve 52, i.e. the left end of the rolling brush 10 is conveniently separated from the accommodating cavity 101.

Of course, it should be noted that the left end and the right end of the roller brush 10 are merely examples, and when the power transmission device 20 is located at the right end of the roller brush 10, the left end of the roller brush 10 is first installed in the accommodating cavity 101, and then the right end of the roller brush 10 is connected to the power transmission device 20 during the installation of the roller brush 10. Alternatively, in the process of removing the rolling brush 10, the left end of the rolling brush 10 is removed from the accommodating cavity 101, and then the right end of the rolling brush 10 is separated from the transmission sleeve 52.

Example two

The present embodiment provides a mobile device, and fig. 4 is a schematic structural diagram of the mobile device provided in the embodiment of the present invention; fig. 5 is a schematic structural diagram of a chassis of a mobile device according to an embodiment of the present invention; as shown in fig. 4 and 5, the movable apparatus includes: a chassis 200, an upper cover 300, and a roll brush assembly 100. The chassis 200 has a receiving chamber 101 for receiving the brush roll assembly 100 therein, and the brush roll assembly 100 is detachably received in the receiving chamber 101.

Wherein, the roll brush assembly 100 includes: a roll brush 10; the power transmission device 20 is arranged at one end of the rolling brush 10, and the power transmission device 20 comprises a shell 21, a bearing 30, a power output wheel 22 and a rotating shaft 23; the power output wheel 22 is fixedly connected with a rotating shaft 23, the bearing 30 is fixedly installed on the shell 21, and the rotating shaft 23 penetrates through an inner hole of the bearing to drive the rolling brush 10 to rotate.

Alternatively, in another embodiment, the rotating shaft 23 may be a part of the rolling brush 10, that is, the rolling brush 10 has the rotating shaft 23 thereon, and the movable apparatus includes: the rolling brush device comprises a base plate 200, an upper cover 300 and a rolling brush assembly 100, wherein the base plate 200 is provided with a containing cavity 101 for containing the rolling brush assembly 100, and the rolling brush assembly 100 is detachably contained in the containing cavity 101; wherein, the roll brush assembly 100 includes: the rolling brush 10 is provided with a rotating shaft 23; a power transmission device 20 disposed at one end of the roll brush 10, the power transmission device 20 including a housing 21, a bearing 30, and a power output wheel 22; the power output wheel 22 is fixedly connected with a rotating shaft 23, the bearing 30 is fixedly installed on the shell 21, and the rotating shaft 23 penetrates through an inner hole of the bearing 30 to drive the rolling brush 10 to rotate.

The specific structure and function of the rolling brush assembly 100 can refer to the description of the first embodiment, and the description of this embodiment is omitted. The mobile device of this embodiment may be a self-moving cleaning robot, a handheld vacuum cleaner, etc., in this embodiment, the self-moving cleaning robot is exemplified, and specifically, the self-moving cleaning robot may further include a main body, a vacuum mechanism (not shown in the figure), and a driving device 40; the body comprises a chassis 200 and an upper cover 300, the upper cover 300 can be detachably arranged on the chassis 200, and the upper cover 300 can protect various functional components inside the self-moving cleaning robot from being damaged by violent impact or liquid dripped unintentionally during the use of the self-moving cleaning robot; while the chassis 200 may be used to carry and support various functional components, such as a suction mechanism. The dust suction mechanism is used for sucking the garbage on the surface to be cleaned (such as the ground), and the dust suction mechanism comprises a rolling brush 10, the rolling brush 10 can be transversely installed in the chassis 200, and the transverse direction is perpendicular to the advancing direction of the self-moving cleaning robot, so that the garbage on the ground can be picked up when the self-moving cleaning robot advances for cleaning. The roll brush 10 is accommodated in the accommodation chamber 101, and a roll brush holder cover (not shown in the drawings) is used to position the roll brush 10 in the accommodation chamber 101.

The utility model provides a round brush subassembly and mobile device that below combine specific application scene to explain the utility model provides a:

application scenario 1

When a user cleans the floor of a home by using the self-moving cleaning robot, the self-moving cleaning robot continuously moves, the rolling brush rolls on the floor to suck impurities, dust, hair, strings and other flexible threads on the floor into the dust collection mechanism, the flexible threads are wound on the rolling brush more or less, the rolling brush rotates to drive the flexible threads to enter a reserved gap between a shell of the power transmission device and a rolling brush connecting assembly and are blocked by a bearing between the shell and the power output wheel, the flexible threads cannot enter the power output wheel, the phenomenon of jamming of the power output wheel cannot be generated, and the rotation of the rolling brush cannot be influenced.

Application scenario 2

The user uses the hand-held vacuum cleaner, the round brush subassembly of hand-held vacuum cleaner is installed on the chassis of scrubbing brush, the user makes a round trip to drag the scrubbing brush, the round brush rolls on ground, in order to inhale the dust absorption mechanism with subaerial impurity, dust, and flexible threadiness such as hair, string, and flexible threadiness more or less twines on the round brush, the round brush rotates and drives flexible threadiness and get into in the reservation clearance between power transmission's the casing and the round brush coupling assembling, and blockked by the bearing between casing and the power take-off wheel, flexible threadiness can not get into in the power take-off wheel, and then can not produce the dead phenomenon of card of power take-off wheel, the rotation of round brush can not receive the influence.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (17)

1. A round brush assembly, comprising:

rolling and brushing;

the power transmission device is arranged at one end of the rolling brush and comprises a shell, a bearing, a power output wheel and a rotating shaft;

the power output wheel is fixedly connected with the rotating shaft, the bearing is fixedly installed on the shell, and the rotating shaft penetrates through the inner hole of the bearing to drive the rolling brush to rotate.

2. The roller brush assembly of claim 1, wherein the bearing comprises a rotating ring and a stationary ring, and rolling bodies disposed between the rotating ring and the stationary ring, and a blocking portion is further disposed between the rotating ring and the stationary ring; when the power output wheel drives the rotating shaft to rotate, the rotating ring rotates relative to the fixed ring, and the bearing blocks the flexible linear substance from entering the shell through the blocking part.

3. The brush roll assembly of claim 2 wherein the power take off wheel abuts a rotating ring of the bearing.

4. The roller brush assembly of claim 3, wherein the blocking portion is interposed between the rotating ring and the stationary ring, and the rotating ring, the stationary ring, and the blocking portion enclose an inner cavity in which the rolling elements are accommodated.

5. The round brush assembly of claim 1 wherein the power transmission further comprises: the power input wheel and the power output wheel are in synchronous transmission, and the power input wheel rotates to drive the power output wheel and the rotating shaft to rotate so as to drive the rolling brush to rotate.

6. The round brush assembly of claim 1 wherein the bearing is located between the shaft and the housing.

7. The brush roll assembly of claim 2, wherein the blocking portion is fixedly attached to or integrally formed with the stationary ring, the blocking portion being in clearance fit with the rotating ring.

8. The brush roll assembly of claim 4, wherein a layer of lubricating oil is present in the lumen to inhibit flexible thread-like material from entering the housing.

9. The brush roll assembly of claim 2 wherein the housing has a first receiving groove in an inner sidewall thereof for receiving the bearing, the first receiving groove being in fixed engagement with a retaining ring of the bearing.

10. The brush roll assembly of claim 9, wherein the first receiving slot is located within the power take-off wheel.

11. The round brush assembly of claim 2 wherein the bearing is a ball bearing, the rotating ring is an inner ring, the stationary ring is an outer ring, and the rolling elements are balls.

12. The round brush assembly according to claim 2, wherein the blocking portion is in a shape of a circular ring, and an axis of a circle center of the blocking portion is coincident with an axis of the power output shaft;

one end of the blocking part is in clearance fit with the rotating ring, and the other end of the blocking part is fixedly connected with the fixing ring or integrally formed with the fixing ring.

13. The round brush assembly according to claim 1, further comprising a round brush holder, one end of the round brush holder being connected to the rotating shaft, and the other end of the round brush holder being connected to the round brush.

14. The brush roll assembly of claim 9, wherein the housing includes an upper housing and a lower housing, the upper housing being removably coupled to the lower housing, the first receiving recess being located in the lower housing.

15. The brush roll assembly of claim 5, further comprising a drive arrangement for providing power, the drive arrangement being coupled to the power input wheel, the power input wheel being located within the housing.

16. A round brush assembly, comprising:

the rolling brush is provided with a rotating shaft;

the power transmission device is arranged at one end of the rolling brush and comprises a shell, a bearing and a power output wheel;

the power output wheel is fixedly connected with the rotating shaft, the bearing is fixedly installed on the shell, and the rotating shaft penetrates through the inner hole of the bearing to drive the rolling brush to rotate.

17. A mobile device, comprising: the rolling brush device comprises a chassis, an upper cover and a rolling brush assembly, wherein the chassis is provided with an accommodating cavity for accommodating the rolling brush assembly, and the rolling brush assembly is detachably accommodated in the accommodating cavity; wherein, the round brush subassembly includes:

rolling and brushing;

the power transmission device is arranged at one end of the rolling brush and comprises a shell, a bearing, a power output wheel and a rotating shaft;

the power output wheel is fixedly connected with the rotating shaft, the bearing is fixedly installed on the shell, and the rotating shaft penetrates through the inner hole of the bearing to drive the rolling brush to rotate.

Images