Cleaning device for cleaning robot and cleaning robot

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning device for a cleaning robot. Due to the fact that the installation end of the cleaning roller of the cleaning device is rotatably connected to the fixing piece, the fixing piece can limit deflection of the cleaning roller, and it is guaranteed that the cleaning roller can stably rotate around the axis of the cleaning roller. The driving shaft penetrates through the fixing piece and is coaxially positioned and inserted into the cleaning roller to stop rotation with the cleaning roller, and the effect of limiting deflection of the cleaning roller can also be achieved. The fixing piece is connected with the cleaning roller, and the driving shaft and the cleaning roller are oppositely inserted, so that the cleaning roller is not easy to shake in the rotating process, and the stability is better. In addition, the cleaning roller is detachable from the fixing piece and the driving shaft, so that the cleaning roller can be separated from the driving shaft and the fixing piece, and the cleaning roller can be conveniently cleaned after being detached from the device shell.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a cleaning device for a cleaning robot. Background Art

[0002] The two ends of the cleaning roller of the cleaning robot are usually installed on the inner wall of the roller groove, and the motor driving the cleaning roller is connected to one end of the cleaning roller. The motor drives the cleaning roller to rotate to clean the floor. Since the current cleaning roller is prone to hair entanglement, users need to frequently handle the cleaning roller. In order to improve the problem of hair entanglement of the cleaning roller, it is currently common to install one end of the cleaning roller on the inner wall of the roller groove and the other end is a free end. This can improve the problem of hair entanglement of the cleaning roller, but because one end of the cleaning roller is suspended in the air, the stability of the cleaning roller is poor during rotation. Utility Model Content

[0003] The present application provides a cleaning device for a cleaning robot, which is used to improve the current technical problem of poor stability of a cleaning roller during rotation; in addition, the purpose of the present application is also to provide a cleaning robot using the above cleaning device.

[0004] In a first aspect, an embodiment provides a cleaning device for a cleaning robot, comprising:

[0005] a device housing having roller grooves;

[0006] A cleaning roller rotatably mounted in the roller groove;

[0007] and a driving mechanism for driving the cleaning roller to rotate; the driving mechanism comprises a driving shaft;

[0008] A holding member is fixed in the roller groove, one end of the cleaning roller is a mounting end rotatably connected to the holding member, and the other end is a free end; the driving shaft passes through the holding member and is coaxially positioned and inserted into the cleaning roller, so as to be able to drive the cleaning roller to rotate;

[0009] The cleaning roller is detachably connected to the holding member and the cleaning roller is detachably connected to the driving shaft, so that the cleaning roller can be removed from the roller groove for cleaning; alternatively, the cleaning roller is fixedly connected to the holding member and / or the cleaning roller is fixedly connected to the driving shaft.

[0010] Furthermore, in one embodiment, the driving mechanism also includes a driving motor and a box body, the retaining member is fixed on the box body or is integrally formed with the box body, one end of the driving shaft passes through the retaining member and is inserted into the box body, and the other end is inserted into the cleaning roller, and the driving motor drives the driving shaft to rotate.

[0011] Furthermore, in one embodiment, the driving mechanism also includes a driving wheel, the box body is arranged on the periphery of the driving wheel and / or the driving motor, the driving shaft passes through one end of the retaining member and is also inserted into the driving wheel, and the driving motor drives the driving shaft to rotate through the driving wheel.

[0012] Furthermore, in one embodiment, the retaining member is extended from one end of the box body to the free end of the cleaning roller, and the extending direction of the retaining member is parallel to the extending direction of the driving shaft or forms an angle less than 30 degrees.

[0013] Furthermore, in one embodiment, the cleaning device includes a second bearing, an inner ring of the second bearing is fixed to the driving wheel, an outer ring of the second bearing is fixed to the box body, and the inner ring of the second bearing can rotate relative to the outer ring of the second bearing.

[0014] Furthermore, in one embodiment, the cleaning device also includes a first bearing and a bearing sleeve, the inner ring of the first bearing is fixed on the retaining member, the outer ring of the first bearing is fixed in the mounting end, the outer ring of the first bearing can rotate relative to the inner ring of the first bearing, the bearing sleeve is sleeved on the outer ring of the first bearing and is located in the mounting end, and the bearing sleeve and the mounting end are detachably fixed.

[0015] Furthermore, in one embodiment, the cleaning roller is mounted on the bearing sleeve via a fastener, and an extending direction of the fastener is perpendicular to an extending direction of the cleaning roller or forms an angle of 30 to 90 degrees with the extending direction of the cleaning roller.

[0016] Furthermore, in one embodiment, the fasteners are provided in plurality, the bearing sleeve is provided with a plurality of connecting holes in the circumferential direction, the mounting end is provided with a plurality of through holes extending from the inside to the outside in the axial direction, the connecting holes and the through holes are provided correspondingly, and the fasteners pass through the through holes and the connecting holes in sequence to fix the mounting end to the bearing sleeve.

[0017] Furthermore, in one embodiment, the device shell includes a shell and a roller cover installed on the shell, the roller groove has a loading and unloading port, the loading and unloading port is used to disassemble and assemble the cleaning roller, and the roller cover is at the loading and unloading port; when the roller cover is opened, at least a portion of the mounting end is exposed through the loading and unloading port to enable disassembly and assembly of the fastener, thereby separating the cleaning roller from the retaining member and from the drive shaft.

[0018] Furthermore, in one embodiment, the roller groove has an avoidance space, and the avoidance space enables the free end of the cleaning roller to move axially in a direction away from the drive shaft so that the drive shaft and the cleaning roller can be separated, and the inner wall of the roller groove has a garbage outlet for discharging garbage, and the garbage outlet is connected to the avoidance space.

[0019] In a second aspect, an embodiment provides a cleaning robot, comprising a movable host and a cleaning device for cleaning the robot, wherein the cleaning device is mounted on the host; the cleaning device comprises:

[0020] a device housing having roller grooves;

[0021] A cleaning roller rotatably mounted in the roller groove;

[0022] and a driving mechanism for driving the cleaning roller to rotate; the driving mechanism comprises a driving shaft;

[0023] A holding member is fixed in the roller groove, one end of the cleaning roller is a mounting end rotatably connected to the holding member, and the other end is a free end; the driving shaft passes through the holding member and is coaxially positioned and inserted into the cleaning roller, so as to be able to drive the cleaning roller to rotate;

[0024] The cleaning roller is detachably connected to the holding member and the cleaning roller is detachably connected to the driving shaft, so that the cleaning roller can be removed from the roller groove for cleaning; alternatively, the cleaning roller is fixedly connected to the holding member and / or the cleaning roller is fixedly connected to the driving shaft.

[0025] Furthermore, in one embodiment, the driving mechanism also includes a driving motor and a box body, the retaining member is fixed on the box body or is integrally formed with the box body, one end of the driving shaft passes through the retaining member and is inserted into the box body, and the other end is inserted into the cleaning roller, and the driving motor drives the driving shaft to rotate.

[0026] Furthermore, in one embodiment, the driving mechanism also includes a driving wheel, the box body is arranged on the periphery of the driving wheel and / or the driving motor, the driving shaft passes through one end of the retaining member and is also inserted into the driving wheel, and the driving motor drives the driving shaft to rotate through the driving wheel.

[0027] Furthermore, in one embodiment, the retaining member is extended from one end of the box body to the free end of the cleaning roller, and the extending direction of the retaining member is parallel to the extending direction of the driving shaft or forms an angle less than 30 degrees.

[0028] Furthermore, in one embodiment, the cleaning device includes a second bearing, an inner ring of the second bearing is fixed to the driving wheel, an outer ring of the second bearing is fixed to the box body, and the inner ring of the second bearing can rotate relative to the outer ring of the second bearing.

[0029] Furthermore, in one embodiment, the cleaning device also includes a first bearing and a bearing sleeve, the inner ring of the first bearing is fixed on the retaining member, the outer ring of the first bearing is fixed in the mounting end, the outer ring of the first bearing can rotate relative to the inner ring of the first bearing, the bearing sleeve is sleeved on the outer ring of the first bearing and is located in the mounting end, and the bearing sleeve and the mounting end are detachably fixed.

[0030] Furthermore, in one embodiment, the cleaning roller is mounted on the bearing sleeve via a fastener, and an extending direction of the fastener is perpendicular to an extending direction of the cleaning roller or forms an angle of 30 to 90 degrees with the extending direction of the cleaning roller.

[0031] Furthermore, in one embodiment, the fasteners are provided in plurality, the bearing sleeve is provided with a plurality of connecting holes in the circumferential direction, the mounting end is provided with a plurality of through holes extending from the inside to the outside in the axial direction, the connecting holes and the through holes are provided correspondingly, and the fasteners pass through the through holes and the connecting holes in sequence to fix the mounting end to the bearing sleeve.

[0032] Furthermore, in one embodiment, the device shell includes a shell and a roller cover installed on the shell, the roller groove has a loading and unloading port, the loading and unloading port is used to disassemble and assemble the cleaning roller, and the roller cover is at the loading and unloading port; when the roller cover is opened, at least a portion of the mounting end is exposed through the loading and unloading port to enable disassembly and assembly of the fastener, thereby separating the cleaning roller from the retaining member and from the drive shaft.

[0033] Furthermore, in one embodiment, the roller groove has an avoidance space, and the avoidance space enables the free end of the cleaning roller to move axially in a direction away from the drive shaft so that the drive shaft and the cleaning roller can be separated, and the inner wall of the roller groove has a garbage outlet for discharging garbage, and the garbage outlet is connected to the avoidance space.

[0034] According to the cleaning device for a cleaning robot of the above-mentioned embodiment, since the mounting end of the cleaning roller of the cleaning device is rotatably connected to the holder, the holder can limit the deflection of the cleaning roller, ensuring that the cleaning roller can stably rotate around its own axis. The drive shaft passes through the holder and is coaxially inserted into the cleaning roller and drives the cleaning roller to rotate, which can also play a role in limiting the deflection of the cleaning roller, ensuring that the cleaning roller can stably rotate around its own axis. In the present application, the cleaning roller is not easy to shake during rotation by adopting a method in which the holder is connected to the cleaning roller and the drive shaft and the cleaning roller are inserted into each other, and the stability is better. In addition, the cleaning roller is detachable from the holder and the drive shaft, so that the cleaning roller can be separated from the drive shaft and the holder, which makes it convenient to remove the cleaning roller from the device shell for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of a cleaning device for a cleaning robot in one embodiment;

[0036] Figure 2 A bottom view of a cleaning device for a cleaning robot in one embodiment;

[0037] Figure 3 along Figure 2 Sectional view of AA in the middle;

[0038] Figure 4 for Figure 3 Enlarged view of the middle X section;

[0039] Figure 5 along Figure 3 Cross-sectional view of the middle BB;

[0040] Figure 6 is a schematic structural diagram of a cleaning device for a cleaning robot after removing a roller cover in one embodiment;

[0041] Figure 7 A schematic diagram of the internal structure of a cleaning device for a cleaning robot in one embodiment;

[0042] Figure 8 It is a schematic diagram of the installation structure of the driving mechanism and the box body in an embodiment.

[0043] List of feature names corresponding to the figure marks in the figure: 1. Device shell; 11. Cleaning port; 12. Holding member; 121. First supporting section; 1211. Positioning member; 122. Second supporting section; 13. Roller groove; 131. Garbage outlet; 132. Loading and unloading port; 14. Shell; 15. Roller cover; 16. Avoidance space; 2. Cleaning roller; 21. Mounting end; 211. Through hole; 212. Large diameter section; 213. Small diameter section; 22. Free end; 23. Socket; 3. Driving mechanism; 31. Driving shaft; 32. Driving motor; 33. Transmission mechanism; 331. Driving wheel; 332. Driving wheel; 333. Synchronous belt; 34. Box body; 4. First bearing; 5. Second bearing; 6. Bearing sleeve; 61. Connecting hole; 7. Fastener. DETAILED DESCRIPTION

[0044] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0045] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0046] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0047] In view of the problem of poor stability of the cleaning roller of the current cleaning robot, the present application provides a cleaning device for improving the stability of the cleaning roller. The cleaning device is applied to the main body of the cleaning robot and moves with the main body. One end of the cleaning roller of the cleaning device is a mounting end, and the other end is a free section. The drive shaft is positioned and inserted in the mounting end, and the mounting end is sleeved on the holding member. Under the joint action of the holding member and the drive shaft, the problem of poor stability of the cleaning roller is improved. The cleaning device in the present application is described in detail below in conjunction with the accompanying drawings.

[0048] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The cleaning device for a cleaning robot includes a device shell 1, a cleaning roller 2 and a driving mechanism 3. The device shell 1 has a roller groove 13, and the cleaning roller 2 is rotatably assembled in the roller groove 13. The device shell 1 has a cleaning opening 11, and the cleaning opening 11 allows the cleaning roller 2 to be exposed to clean the floor. In one embodiment, the device shell 1 is used to be fixedly mounted on a host of the cleaning robot and moves with the host. The cleaning robot may include a sweeping robot and a sweeping and mopping robot.

[0049] Please refer to Figure 1 and Figure 3 , at least part of the driving mechanism 3 is mounted on the device housing 1, and the driving mechanism 3 is connected to the cleaning roller 2 to drive the cleaning roller 2 to rotate. The driving mechanism 3 includes a driving shaft 31, and a holding member 12 is provided in the roller groove 13. The driving shaft 31 passes through the holding member 12 and is coaxially positioned and inserted into the cleaning roller 2, so as to be able to transmit the rotational driving force to the cleaning roller 2 and drive the cleaning roller 2 to rotate. One end of the cleaning roller 2 is a mounting end 21 rotatably connected to the holding member 12, and the other end is a free end 22. The cleaning roller 2 is detachably connected to the holding member 12 and the cleaning roller 2 is detachably connected to the driving shaft 31. When the cleaning roller 2 is detachably connected to the holding member 12, the cleaning roller 2 can be removed from the roller groove 13 for cleaning. The detachable connection includes but is not limited to a threaded connection, a snap-fit ​​connection or a screw connection.

[0050] In addition to the detachable connection, in one embodiment, the cleaning roller 2 is fixedly connected to the holder 12 and / or the cleaning roller 2 is fixedly connected to the drive shaft 31. It should be noted that the fixed connection in this embodiment refers to a connection mode in which the user cannot remove the cleaning roller 2 from the roller groove 13 for cleaning, that is, the cleaning roller 2 is not removed from the roller groove 13. Since there is no need to remove the cleaning roller 2, there is no need to reserve an operating space for removing the cleaning roller 2. Specifically, without removing the cleaning roller 2 from the roller groove 13, the user can update the cleaning roller 2 by replacing the bristles or soft rubber.

[0051] Since the free end 22 of the cleaning roller 2 is suspended in the roller groove 13 of the device housing 1, the cleaning roller 2 is not easy to get tangled. By adopting the method that the retaining member 12 is rotatably connected to the cleaning roller 2, and the driving shaft 31 is inserted into the cleaning roller 2, under the restriction of the retaining member 12 and the driving shaft 31, it is ensured that the cleaning roller 2 can stably rotate around its own axis, and the cleaning roller 2 is not easy to shake during the rotation process, and the stability is better. In addition, the cleaning roller 2 is detachable from the retaining member 12 and the driving shaft 31, which can separate the cleaning roller 2 from the driving shaft 31 and the retaining member 12, and it is convenient to remove the cleaning roller 2 from the device housing 1.

[0052] Regarding the insertion relationship between the drive shaft 31 and the cleaning roller 2, in one embodiment, in order to facilitate disassembly, the drive shaft 31 and the cleaning roller 2 are clearance-fitted, and the cleaning roller 2 and the drive shaft 31 can be directly pulled out. In another embodiment, the drive shaft 31 and the cleaning roller 2 can also be interference-fitted. In this case, when the drive shaft 31 and the cleaning roller 2 are disassembled, tools are required to separate the two.

[0053] Please refer to Figure 3 The cleaning roller 2 has a socket 23 for inserting the drive shaft 31. The shape of the socket 23 is adapted to the drive shaft 31. After the drive shaft 31 is inserted into the socket 23, the drive shaft 31 and the cleaning roller 2 can be fixed, so that the drive shaft 31 drives the cleaning roller 2 to rotate. The drive shaft 31 and the hole wall of the socket 23 are positioned and matched, so that the drive shaft 31 and the socket 23 are coaxial. There are many ways to fix the socket 23 and the drive shaft 31. For example, in one embodiment, please refer to Figure 8 , the portion of the drive shaft 31 inserted into the insertion hole 23 is a quadrangular prism, which is adapted to the inner circumference of the insertion hole 23, and the insertion hole 23 is a square hole. For another example, after the insertion hole 23 and the cleaning roller 2 are inserted, the pin extending along the radial direction of the cleaning roller 2 passes through the drive shaft 31 and the cleaning roller 2, so as to achieve the fixing of the drive shaft 31 and the cleaning roller 2. For another example, in one embodiment, the insertion hole 23 can also be a special-shaped hole or an elliptical hole or other polygonal hole.

[0054] Regarding the structure of the device housing 1, in one embodiment, please refer to Figure 3 , Figure 6 The device housing 1 provides a space for the cleaning roller 2 to move, so that the cleaning roller 2 can rotate and clean the ground. The device housing 1 has a roller groove 13, and the cleaning roller 2 is in the roller groove 13. The inner wall of the roller groove 13 has a garbage outlet 131, and the debris cleaned by the cleaning roller 2 can pass through the garbage outlet 131 (please refer to Figure 6 ) was taken away.

[0055] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 6The device housing 1 includes a housing 14 and a roller cover 15 installed in the housing 14, and the roller groove 13 is in the housing 14. The roller groove 13 has a loading and unloading port 132, and the loading and unloading port 132 is used to disassemble the cleaning roller 2. The roller cover 15 covers the loading and unloading port 132. When the roller cover 15 is opened, at least a portion of the mounting end 21 is exposed through the loading and unloading port 132, so that the cleaning roller 2 can be disassembled through the loading and unloading port 132. Of course, at least a portion of the free end 22 is also exposed through the loading and unloading port 132, which facilitates the disassembly operation of the cleaning roller 2. In one embodiment, please refer to Figure 2 and Figure 6 The cleaning port 11 is located on the roller cover 15 , so that the loading and unloading port 132 and the cleaning port 11 are arranged on the same side of the cleaning roller 2 , which can save space.

[0056] In one embodiment, please refer to Figure 6 The roller groove 13 is located in the housing 14 , and the notch of the roller groove 13 forms a loading and unloading port 132 for assembling and disassembling the cleaning roller 2 .

[0057] In one embodiment, please refer to Figure 1 , Figure 2 As shown, the roller cover 15 can be fixed to the housing 14 in any feasible manner, for example, the roller cover 15 can be a flip cover, one side of the roller cover 15 is connected to the housing 14 by a hinge, and the other side is snap-fitted to the housing 14 by a buckle. For another example, the roller cover 15 can also be fixed to the housing 14 by magnetic attraction. For another example, the roller cover 15 can also be fixed to the housing 14 by a threaded fastener.

[0058] In one embodiment, please refer to Figure 3 and Figure 6 Since the driving shaft 31 and the cleaning roller 2 are plug-in connected, when removing the cleaning roller 2, the cleaning roller 2 and the driving shaft 31 need to be separated by axial relative movement. The roller groove 13 has an escape space 16. The escape space 16 enables the cleaning roller 2 to move axially away from the driving shaft 31, so that the driving shaft 31 and the cleaning roller 2 can be separated, thereby removing the cleaning roller 2 from the device housing 1. In some other embodiments, the driving shaft 31 can also be moved in a direction away from the cleaning roller 2, so that the cleaning roller 2 can be removed from the device housing 1. In order to facilitate the discharge of the garbage cleaned by the cleaning roller 2, in one embodiment, please refer to Figure 6 The garbage outlet 131 is connected to the avoidance space 16, and the garbage outlet 131 is located on the inner wall of the roller groove 13 at the location of the avoidance space 16. In one embodiment, the groove wall surface at the location of the garbage outlet 131 is an arc wall surface or a smooth curved surface.

[0059] In one embodiment, please refer to Figure 1 and Figure 3The driving mechanism 3 includes a driving motor 32 and a box body 34. The retaining member 12 is fixed on the box body 34 or is integrally formed with the box body 34. At least part of the driving mechanism 3 is in the box body 34. The box body 34 can be used to protect at least part of the driving mechanism 3, thereby improving the safety of the driving mechanism 3. One end of the driving shaft 31 passes through the retaining member 12 and is inserted into the box body 34, and the other end is inserted into the cleaning roller 2. The driving motor 32 drives the driving shaft 31 to rotate.

[0060] Specifically, in one embodiment, please refer to Figure 3 and Figure 4 , the box body 34 and the holder 12 are integrally formed. In this way, the strength of the holder 12 is higher and the reliability is better. In some other embodiments, the box body 34 and the holder 12 can also be fixed together, such as fixed together by screws, or fixed together by welding or bonding.

[0061] Specifically, in one embodiment, please refer to Figure 3 and Figure 4 The driving mechanism 3 includes a transmission mechanism 33, and the driving motor 32 transmits power to the driving shaft 31 through the transmission mechanism 33, driving the driving shaft 31 to rotate. The driving motor 32 is fixed outside the box body 34, and the transmission mechanism 33 is inside the box body 34. The box body 34 can protect the transmission mechanism 33 and reduce the influence of debris on the transmission mechanism 33. In some other embodiments, the driving motor 32 can also be fixed inside the box body 34.

[0062] In one embodiment, the transmission mechanism 33 further includes a driving wheel 332, the box body 34 is disposed on the periphery of the driving wheel 332 and wraps the driving wheel 332, the driving shaft 31 passes through one end of the holder 12 and is inserted into the driving wheel 332, and the driving motor 32 drives the driving shaft 31 to rotate through the driving wheel 332. In some other embodiments, the box body 34 can be disposed on the periphery of the driving motor 32 and the driving wheel 332. The driving wheel 332 can be a gear, a pulley, or a synchronous wheel.

[0063] Since one end of the driving shaft 31 passing through the holder 12 is also inserted into the driving wheel 332, in one embodiment, the cleaning device for the cleaning robot includes a second bearing 5, the inner ring of the second bearing 5 is fixed on the driving wheel 332, the outer ring of the second bearing 5 is fixed to the box body 34, and the inner ring of the second bearing 5 can rotate relative to the outer ring of the second bearing 5. The second bearing 5 can improve the stability of the rotation of the driving shaft 31.

[0064] The driving mechanism 3 can be implemented in any feasible manner. For example, in one embodiment, please refer to Figure 3 and Figure 4 , the transmission mechanism 33 is a synchronous belt transmission mechanism. In one embodiment, please refer to Figure 3 and Figure 4 The synchronous belt transmission mechanism includes a driving wheel 331 fixed to the output shaft of the driving motor 32 and a driving wheel 332 fixed to the driving shaft 31. The driving wheel 331 and the driving wheel 332 are connected by a synchronous belt 333. The driving motor 32 drives the driving wheel 331 to rotate. The driving wheel 331 drives the driving wheel 332 to rotate through the synchronous belt 333, thereby driving the driving shaft 31 to rotate, and the driving shaft 31 drives the cleaning roller 2 to rotate. For another example, in one embodiment, the output shaft of the driving motor 32 is directly connected to the driving shaft 31 through a coupling, and the driving motor 32 directly drives the driving shaft 31 to rotate. For another example, in one embodiment, the driving motor 32 drives the driving shaft 31 to rotate through a reduction gear assembly.

[0065] In one embodiment, please refer to Figure 3 and Figure 4 The holding member 12 extends from one end of the box body 34 to the free end 22 of the cleaning roller 2, and the extending direction of the holding member 12 is parallel to the extending direction of the driving shaft 31. In some other embodiments, the extending direction of the holding member 12 and the extending direction of the driving shaft 31 may also form an angle less than 30 degrees.

[0066] In one embodiment, please refer to Figure 3 and Figure 4 In order to further improve the stability of the cleaning roller 2, the holder 12 includes a first support section 121 for supporting the drive shaft 31 and a second support section 122 for supporting the cleaning roller 2, and the second support section 122 and the first support section 121 are arranged along the axial direction of the drive shaft 31. By using the two-section support method, the cleaning roller 2 is less likely to shake during the rotation process and has higher stability.

[0067] In one embodiment, the drive shaft 31 extends into the first support section 121, and part of the cleaning roller 2 is arranged on the periphery of the second support section 122; the cleaning device for the cleaning robot also includes a first bearing 4, the first bearing 4 is located outside the second support section 122 and inside the mounting end 21, the inner ring of the first bearing 4 is fixed to the second support section 122, the outer ring of the first bearing 4 is fixed to the mounting end 21, the outer ring of the first bearing 4 can rotate relative to the inner ring of the first bearing 4, and the mounting end 21 is rotatably connected to the retaining member 12 through the first bearing 4.

[0068] Specifically, in one embodiment, please refer to Figure 3 and Figure 4The first support section 121 is provided with a positioning member 1211, and the first support section 121 is positioned and contacted with the drive shaft 31 through the positioning member 1211. The second support section 122 supports and positions the mounting end 21 through the first bearing 4, so that the mounting end 21 is coaxial with the drive shaft 31. Through the supporting and positioning function of the positioning member 1211 and the first bearing 4, the free end 22 of the cleaning roller 2 and the mounting end 21 are more easily ensured to be coaxial during the rotation process. In one embodiment, please refer to Figure 3 and Figure 4 The positioning member 1211 is a positioning ring fixed inside the holding member 12. In some other embodiments, the positioning member 1211 can also be a bearing between the driving shaft 31 and the holding member 12.

[0069] In some other embodiments, according to actual needs, the holder 12 may also be provided with only one support section to position and support the cleaning roller 2. For example, an annular gap may be formed between the driving shaft 31 and the holder 12, and it is also feasible that the two do not contact each other.

[0070] In one embodiment, please refer to Figure 3 and Figure 4 The second bearing 5 and the positioning member 1211 are arranged at intervals along the axial direction of the driving shaft 31, and the second bearing 5 and the first bearing 4 are also arranged at intervals along the axial direction of the driving shaft 31. Specifically, the second bearing 5 is located between the box body 34 and the driving shaft 31, so that the positioning member 1211 and the second bearing 5 can prevent the driving shaft 31 from shaking, thereby improving the stability of the driving shaft 31.

[0071] The fixing of two parts described in the present application includes both direct fixing and fixing via a third part.

[0072] It should be noted that the bearings described in the present application may be any feasible bearing type, for example, the first bearing 4 and the second bearing 5 may both be ball bearings.

[0073] In one embodiment, please refer to Figure 3 and Figure 4 The cleaning device for the cleaning robot includes a bearing sleeve 6, a first bearing 4 is located between the mounting end 21 and the retaining member 12, the bearing sleeve 6 is sleeved on the outer ring of the first bearing 4 and is located inside the mounting end 21, the inner ring of the first bearing 4 is fixed to the retaining member 12, and the bearing sleeve 6 is detachably fixed to the mounting end 21. The bearing sleeve 6 facilitates the installation of the first bearing 4.

[0074] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5The cleaning roller 2 is mounted on the bearing sleeve 6 through a fastener 7, and the extension direction of the fastener 7 is perpendicular to the extension direction of the cleaning roller 2. In some other embodiments, the fastener 7 and the extension direction of the cleaning roller 2 may also be at an angle of 30 to 90 degrees.

[0075] Specifically, in one embodiment, please refer to Figure 3 , Figure 6 and Figure 7 The bearing sleeve 6 and the mounting end 21 are fixed by the fastener 7. When the roller cover 15 is opened, the mounting end 21 is exposed through the loading and unloading opening 132 so that the fastener 7 can be disassembled. After the fastener 7 is removed, the mounting end 21 can be separated from the bearing sleeve 6, which facilitates the separation of the cleaning roller 2 from the holder 12 and the drive shaft 31.

[0076] In one embodiment, Figure 4 , Figure 5 As shown, there are multiple fasteners 7, a plurality of connecting holes 61 are provided in the circumferential direction of the bearing sleeve 6, and a plurality of through holes 211 are provided in the axial direction of the mounting end 21 which penetrate from the inside to the outside. The connecting holes 61 and the through holes 211 are arranged correspondingly, and the fasteners 7 pass through the through holes 211 and the connecting holes 61 in sequence to fix the mounting end 21 on the bearing sleeve 6.

[0077] In one embodiment, please refer to Figure 5 , the number of fasteners 7 is set as required, for example, it can be two, three or more than four arranged at intervals along the circumference of the bearing sleeve 6. Of course, if the installation requirements are met, only one fastener 7 can be set. When at least two fasteners 7 are removed, the cleaning roller 2 can be rotated so that the fastener 7 is in a convenient disassembly position to facilitate the disassembly operation of the fastener 7. In one embodiment, the fastener 7 is a threaded fastener (such as a screw), and the extension direction of the fastener 7 is perpendicular to the axial direction of the cleaning roller 2. The bearing sleeve 6 has a threaded hole adapted to the threaded fastener. In other embodiments, the fastener 7 can also be a latch, and the bearing sleeve has a latch hole adapted to the latch.

[0078] In an embodiment, the mounting end 21 and the outer ring of the first bearing 4 may also be directly fixed by tightening with screws.

[0079] In one embodiment, please refer to Figure 3 and Figure 4 The mounting end 21 is a variable diameter tubular shape, and includes a large diameter section 212 and a small diameter section 213. The bearing sleeve 6 is located in the large diameter section 212, and the inner wall surface of the small diameter section 213 is in clearance with the outer wall surface of the retaining member 12. The variable diameter tubular design of the mounting end 21 facilitates the removal and installation of the cleaning roller 2.

[0080] In an embodiment of a cleaning robot, the cleaning robot comprises a movable main body and a cleaning device for the cleaning robot as described in any one of the above embodiments, and the cleaning device is mounted on the main body.

[0081] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A cleaning device for a cleaning robot, characterized in that: include: a device housing having roller grooves; A cleaning roller rotatably mounted in the roller groove; and a driving mechanism, for driving the cleaning roller to rotate; The driving mechanism comprises a driving shaft; A holding member is fixed in the roller groove, one end of the cleaning roller is a mounting end rotatably connected to the holding member, and the other end is a free end; the driving shaft passes through the holding member and is coaxially positioned and inserted into the cleaning roller, so as to be able to drive the cleaning roller to rotate; The cleaning roller is detachably connected to the holding member and the cleaning roller is detachably connected to the driving shaft, so that the cleaning roller can be removed from the roller groove for cleaning; alternatively, the cleaning roller is fixedly connected to the holding member and / or the cleaning roller is fixedly connected to the driving shaft.

2. The cleaning device for a cleaning robot according to claim 1, characterized in that: The driving mechanism also includes a driving motor and a box body, the retaining member is fixed on the box body or is integrally formed with the box body, one end of the driving shaft passes through the retaining member and is inserted into the box body, and the other end is inserted into the cleaning roller, and the driving motor drives the driving shaft to rotate.

3. The cleaning device for a cleaning robot according to claim 2, characterized in that: The driving mechanism also includes a driving wheel, the box body is arranged on the periphery of the driving wheel and / or the driving motor, the driving shaft passes through one end of the retaining member and is also inserted into the driving wheel, and the driving motor drives the driving shaft to rotate through the driving wheel.

4. The cleaning device for a cleaning robot according to claim 2, characterized in that: The holding member is extended from one end of the box body to the free end of the cleaning roller, and the extending direction of the holding member is parallel to the extending direction of the driving shaft or forms an angle less than 30 degrees.

5. The cleaning device for a cleaning robot according to claim 3, characterized in that: The cleaning device comprises a second bearing, the inner ring of the second bearing is fixed on the driving wheel, the outer ring of the second bearing is fixed to the box body, and the inner ring of the second bearing can rotate relative to the outer ring of the second bearing.

6. The cleaning device for a cleaning robot according to any one of claims 1 to 5, characterized in that: The cleaning device also includes a first bearing and a bearing sleeve, wherein the inner ring of the first bearing is fixed on the retaining member, the outer ring of the first bearing is fixed in the mounting end, the outer ring of the first bearing can rotate relative to the inner ring of the first bearing, the bearing sleeve is sleeved on the outer ring of the first bearing and is located in the mounting end, and the bearing sleeve and the mounting end are detachably fixed.

7. The cleaning device for a cleaning robot according to claim 6, characterized in that: The cleaning roller is mounted on the bearing sleeve via a fastener, and an extending direction of the fastener is perpendicular to an extending direction of the cleaning roller or forms an angle of 30 to 90 degrees with the extending direction of the cleaning roller.

8. The cleaning device for a cleaning robot according to claim 7, characterized in that: There are multiple fasteners, and the bearing sleeve is provided with multiple connecting holes in the circumferential direction. The mounting end is provided with multiple through holes extending from the inside to the outside in the axial direction. The connecting holes and the through holes are arranged correspondingly. The fasteners pass through the through holes and the connecting holes in sequence to fix the mounting end on the bearing sleeve.

9. The cleaning device for a cleaning robot according to claim 7, characterized in that: The device shell includes a shell and a roller cover installed on the shell, the roller groove has a loading and unloading port, the loading and unloading port is used to disassemble the cleaning roller, and the roller cover is at the loading and unloading port; when the roller cover is opened, at least part of the mounting end is exposed through the loading and unloading port to enable disassembly of the fastener, thereby separating the cleaning roller from the retaining member and from the drive shaft.

10. The cleaning device for a cleaning robot according to any one of claims 1 to 5, characterized in that: The roller groove has an escape space, and the escape space enables the free end of the cleaning roller to move axially in a direction away from the drive shaft so that the drive shaft and the cleaning roller can be separated. The inner wall of the roller groove has a garbage outlet for discharging garbage, and the garbage outlet is connected to the escape space.

11. A cleaning robot, characterized in that: It comprises a movable host and a cleaning device for a cleaning robot as described in any one of claims 1 to 10, wherein the cleaning device is mounted on the host.

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