Rolling brush lifting device and cleaning robot

Abstract

The utility model provides a rolling brush lifting device and a cleaning robot. The rolling brush lifting device is installed on a base and comprises a rolling brush assembly, a driving mechanism and a transmission mechanism. The rolling brush assembly is movably installed on the base. The transmission mechanism is fixedly connected to one side of the driving mechanism; the transmission mechanism is provided with a first output end and a second output end, the first output end is used for driving the rolling brush assembly to rotate, and the second output end is used for driving the rolling brush assembly to ascend and descend. The first output end for outputting the rotating power of the rolling brush assembly and the second output end for outputting the lifting power of the rolling brush assembly are arranged on the transmission mechanism, and the transmission mechanism is integrally fixed to one side of the driving mechanism, so that one driving mechanism and one transmission mechanism can achieve the two functions of lifting and rotating of the rolling brush assembly at the same time; the structure of the rolling brush lifting device is simplified, and the cost and occupied space of the rolling brush lifting device are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a roller brush lifting device and a cleaning robot. Background Art

[0002] With the development of society, people's living standards are constantly improving, and more and more types of household appliances are used in daily life. Sweeping robots with sweeping and mopping functions have become the mainstream of the industry. They can sweep and mop the floor at the same time, saving people time and freeing up their hands.

[0003] The roller brush is a core component of a sweeping robot, used for sweeping and cleaning the floor. However, the roller brush assembly often becomes wet during use, affecting cleaning effectiveness and its lifespan. To address this issue, sweeping robots have added a lifting mechanism to drive the roller brush assembly up and down. However, existing lifting mechanisms are complex and take up a large amount of space within the robot. Utility Model Content

[0004] Based on this, it is necessary to provide a roller brush lifting device and a cleaning robot to address the problem that the lifting structure in the existing technology is relatively complex and occupies a large space of the entire machine.

[0005] The technical solution is as follows:

[0006] In one aspect, a roller brush lifting device is provided, the roller brush lifting device being mounted on the base and comprising:

[0007] A roller brush assembly movably mounted on the base; and

[0008] Drive mechanism;

[0009] a transmission mechanism, fixedly connected to one side of the driving mechanism;

[0010] The transmission mechanism is provided with a first output end and a second output end. The first output end is used to drive the roller brush assembly to rotate, and the second output end is used to drive the roller brush assembly to rise and fall.

[0011] The technical solution is further described below:

[0012] In one embodiment, the transmission mechanism includes a first transmission group having the first output end, a second transmission group having the second output end, and a one-way transmission member; the first transmission group is transmission-connected between the drive mechanism and the one-way transmission member, and the one-way transmission member is selectively transmission-connected between the first transmission group and the second transmission group;

[0013] Wherein, when the driving mechanism is in the first working state, the one-way transmission member transmits the driving force of the driving mechanism to the lifting member, so that the lifting member rotates following the one-way transmission member and abuts against the base, thereby converting the rotation into the upward movement of the brush roller assembly; when the driving mechanism is in the second working state, the one-way transmission member cuts off the driving force between the driving mechanism and the lifting member, and the brush roller assembly descends and resets.

[0014] In one embodiment, the transmission mechanism further includes a lifting member, and the lifting member is in transmission connection with the second output end. When the one-way transmission member is in the transmission state, the lifting member rotates following the second output end and abuts against the base, thereby converting the rotation into the lifting movement of the brush roller assembly.

[0015] In one embodiment, the lifting member is used for abutting and cooperating with the supporting surface on the base.

[0016] In one embodiment, the transmission mechanism further includes a mounting box mounted on the brush roller assembly. The first transmission group, the second transmission group and the one-way transmission member are all mounted in the mounting box. The first output end extends out of the mounting box and is in transmission connection with the brush roller assembly, and the second output end extends out of the mounting box and is in transmission connection with the lifting member.

[0017] In one embodiment, the first output end and the second output end extend out from opposite sides of the mounting box respectively.

[0018] In one embodiment, the driving mechanism includes a motor provided with an output shaft. The first transmission group includes a first gear, a second gear and a third gear. The output shaft is in transmission connection with the first gear. The first gear meshes with the second gear, and the second gear meshes with the third gear. The first output end is arranged on the second gear, and the one-way transmission member is mounted on the third gear.

[0019] In one embodiment, the first transmission group further includes a fourth gear and a fifth gear. The first gear meshes with the fourth gear, the fourth gear meshes with the fifth gear, and the fifth gear meshes with the second gear.

[0020] In one embodiment, the second transmission group includes a first transmission member. One end of the first transmission member is in transmission connection with the one-way transmission member, and the other end is set as the second output end.

[0021] In one embodiment, the second transmission group further includes a sixth gear, a seventh gear and a second transmission member. One end of the second transmission member is in transmission connection with the one-way transmission member. The sixth gear is sleeved on the end of the second transmission member away from the one-way transmission member. The seventh gear meshes with the sixth gear and is sleeved on the end of the first transmission member away from the first output end.

[0022] In one embodiment, the roller brush assembly includes a roller brush body and an installation cavity. The roller brush body is installed in the installation cavity and is in transmission connection with the first output end. An outer wall of the installation cavity is provided with a cantilever, and the cantilever is used for rotatably connecting with the base.

[0023] In one embodiment, the roller brush lifting device further includes a trigger member and a controller. The trigger member is installed on the base and is used for being triggered when the roller brush assembly rises to a preset height. Both the trigger member and the driving mechanism are in communication connection with the controller.

[0024] On the other hand, a cleaning robot is provided, including a base and the above-mentioned roller brush lifting device.

[0025] In the roller brush lifting device and the cleaning robot in the above embodiments, by arranging the first output end for outputting the rotational power of the roller brush and the second output end for outputting the lifting power of the roller brush on one transmission mechanism, and the transmission mechanism as a whole is fixed on one side of the driving mechanism, one gearbox and one motor can simultaneously achieve the two functions of roller brush lifting and rotation, simplifying the structure of the roller brush lifting device, reducing the cost and occupied space of the roller brush lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of a roller brush lifting device in one embodiment.

[0029] Figure 2 For Figure 1 The schematic structural diagram of the roller brush lifting device in another perspective.

[0030] Figure 3For Figure 1 The bottom view of the roller brush lifting device and the base of Figure 1 .

[0031] Figure 4 For Figure 1 The top view of the roller brush lifting device and the base of Figure 1 .

[0032] Figure 5 For Figure 3 The cross-sectional view of the roller brush lifting device and the base of Figure 3 .

[0033] Figure 6 For Figure 1 The structural schematic diagram of the drive mechanism in Figure 1 .

[0034] Figure 7 For Figure 6 The structural schematic diagram of the drive mechanism in Figure 6 from another perspective.

[0035] Figure 8 For Figure 6 The schematic diagram of the structure of the transmission mechanism in Figure 6 in the first working state.

[0036] Figure 9 For Figure 6 The schematic diagram of the structure of the transmission mechanism in Figure 6 in the second working state.

[0037] Figure 10 For Figure 1 The cross-sectional view of the drive mechanism in Figure 1 .

[0038] Figure 11 For Figure 3 The structural schematic diagram of the base in Figure 3 .

[0039] Figure 12 For Figure 1 The cross-sectional view of the roller brush lifting device in Figure 1 .

[0040] Figure 13 For Figure 1 The structural schematic diagram of the roller brush assembly in Figure 1 .

[0041] Explanation of reference numerals:

[0042] 10. Rotating Brush Lifting Device; 100. Rotating Brush Assembly; 110. Rotating Brush Body; 120. Installation Cavity; 130. Cantilever; 200. Driving Mechanism; 300. Transmission Mechanism; 310. First Transmission Group; 311. First Output End; 312. First Gear; 313. Second Gear; 314. Third Gear; 315. Fourth Gear; 316. Fifth Gear; 320. Second Transmission Group; 321. Second Output End; 322. First Transmission Member; 323. Sixth Gear; 324. Seventh Gear; 325. Second Transmission Member; 330. One-Way Transmission Member; 340. Lifting Member; 350. Installation Box; 400. Trigger Member; 20. Base; 21. Support Surface; 22. Limiting Portion. Detailed Embodiment

[0043] To make the above objects, features, and advantages of the present application more apparent and understandable, the following detailed description of the specific embodiments of the present application is provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] As Figures 1 to 6 shown, in one embodiment, a rotating brush lifting device 10 is provided. The rotating brush lifting device 10 is installed on a base 20 and includes a rotating brush assembly 100, a driving mechanism 200, and a transmission mechanism 300. Among them, the rotating brush assembly 100 is movably installed on the base 20. The transmission mechanism 300 is fixedly connected to one side of the driving mechanism 200. The transmission mechanism 300 is provided with a first output end 311 and a second output end 321. The first output end 311 is used to drive the rotating brush assembly 100 to rotate, and the second output end 321 is used to drive the rotating brush assembly 100 to lift.

[0045] In the rotating brush lifting device 10 in the above embodiment, by arranging the first output end 311 for outputting the rotating power of the rotating brush assembly 100 and the second output end 321 for outputting the lifting power of the rotating brush assembly 100 on a transmission mechanism 300, and the transmission mechanism 300 is integrally fixed on one side of the driving mechanism 200, so that one driving mechanism 200 and one transmission mechanism 300 can simultaneously achieve the two functions of lifting and rotating the rotating brush assembly 100, simplify the structure of the rotating brush lifting device 10, and reduce the cost and occupied space of the rotating brush lifting device 10.

[0046] The drive mechanism 200 may be a drive motor, a drive cylinder, a drive pump, or other drive structure. The transmission mechanism 300 may be any conventional transmission structure capable of inputting a driving force and outputting a force for driving the roller brush to rotate and a force for driving the roller brush to elevate. Specifically, in this embodiment, the drive mechanism 200 is fixedly mounted on the transmission mechanism 300, which is in turn fixedly mounted on the roller brush assembly 100.

[0047] like Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, further, the transmission mechanism 300 includes a first transmission group 310 having a first output end 311, a second transmission group 320 having a second output end 321, and a one-way transmission member 330; the first transmission group 310 is transmission-connected between the driving mechanism 200 and the one-way transmission member 330, and the one-way transmission member 330 can be selectively transmission-connected between the first transmission group 310 and the second transmission group 320.

[0048] When the one-way transmission member 330 is in an unloaded state, the one-way transmission member 330 cuts off the force transmission between the first transmission group 310 and the second transmission group 320 , the first output end 311 can drive the roller brush assembly 100 to rotate, and the second output end 321 does not move.

[0049] When the one-way transmission member 330 is in the transmission state, the one-way transmission member 330 transmits the force of the first transmission group 310 to the second transmission group 320, the first output end 311 can drive the roller brush assembly 100 to rotate, and the second output end 321 can synchronously drive the roller brush assembly 100 to rise and fall.

[0050] The one-way transmission member 330 may be configured as any one-way transmission structure in the prior art, for example, the one-way transmission member 330 may be configured as a one-way bearing or a ratchet pawl structure.

[0051] like Figure 5 、 Figure 7 and Figure 10 As shown, optionally, the transmission mechanism 300 also includes a lifting member 340, which is transmission-connected to the second output end 321. When the one-way transmission member 330 is in the transmission state, the lifting member 340 rotates with the second output end 321 and contacts the base 20 to convert the rotation into the lifting movement of the roller brush assembly 100.

[0052] When it is necessary to control the lifting of the rolling brush assembly 100, the control driving mechanism 200 is in the first working state, the one-way transmission member 330 is correspondingly in the transmission state, the force on the first transmission group 310 is transmitted to the second output end 321 through the one-way transmission member 330, the second output end 321 drives the lifting member 340 to rotate synchronously, and the lifting member 340 abuts against the base 20 to convert the rotation into the upward movement of the rolling brush assembly 100.

[0053] When it is necessary to control the rolling brush assembly 100 to descend and reset, the control driving mechanism 200 is in the second working state, the one-way transmission member 330 is correspondingly in the no-load state, the first output end 311 drives the rolling brush assembly 100 to rotate, the one-way transmission member 330 cuts off the transmission of force between the first transmission group 310 and the second group, the lifting member 340 cannot continue to press down the base 20, and the rolling brush assembly 100 descends and resets under the action of gravity.

[0054] Among them, the first working state and the second working state refer to the working states of the driving mechanism 200 when the output shaft of the driving mechanism 200 is in different rotation directions. Specifically, in this embodiment, in this application, when the output shaft of the driving mechanism 200 rotates clockwise, the driving mechanism 200 is in the first working state; when the output shaft of the driving mechanism 200 rotates counterclockwise, the driving mechanism 200 is in the second working state, which is taken as an example for detailed description. In other embodiments, it may also be that when the output shaft of the driving mechanism 200 rotates counterclockwise, the driving mechanism 200 is in the first working state; when the output shaft of the driving mechanism 200 rotates clockwise, the driving mechanism 200 is in the second working state.

[0055] As Figure 5 and Figure 11 shown, in one embodiment, the lifting member 340 is used to abut and cooperate with the supporting surface 21 on the base 20.

[0056] Specifically, in this embodiment, the lifting member 340 is set as a lifting cam. The outer side wall of the lifting cam is provided with an abutting portion for abutting and cooperating with the base 20.

[0057] Among them, the abutting portion extends along a curve direction, and the curvature of the curve can be flexibly adjusted according to actual use needs, so as to accurately control the lifting height of the rolling brush body 110 in the rolling brush assembly 100 to adapt to different cleaning requirements.

[0058] As Figure 11As shown, optionally, the base 20 is further provided with a limiting portion 22 disposed on the supporting surface 21. The supporting surface 21 is in abutting cooperation with the lifting member 340. The limiting portion 22 is in limiting cooperation with the lifting member 340. In this way, the limiting portion 22 can limit the rotational position of the lifting member 340, ensuring that the lifting member 340 can rotate downward to press the supporting surface 21, so as to accurately drive the brush roller assembly 100 to rise to a preset position, improving the reliability of the brush roller lifting device 10.

[0059] Among them, the limiting portion 22 can be set as a limiting plate, a limiting protrusion or other limiting structures. Specifically in this embodiment, the lifting member 340 remains in abutting cooperation with the supporting surface 21. The limiting portion 22 and the supporting surface 21 jointly enclose a limiting groove having a first avoidance opening and a second avoidance opening. The first avoidance opening is located at the top of the limiting groove, and the second avoidance opening is located on the side of the limiting groove close to the brush roller assembly 100. The first avoidance opening is communicated with the second avoidance opening.

[0060] As Figure 5 , Figure 6 and Figure 7 shown, in one embodiment, the transmission mechanism 300 further includes an installation box 350 installed on the brush roller assembly 100. The first transmission group 310, the second transmission group 320 and the one-way transmission member 330 are all installed in the installation box 350. The first output end 311 extends out of the installation box 350 and is in transmission connection with the brush roller assembly 100. The second output end 321 extends out of the installation box 350 and is in transmission connection with the lifting member 340. In this way, the installation box 350 can protect the first transmission group 310, the second transmission group 320 and the one-way transmission member 330, improving the reliability of the brush roller lifting device 10.

[0061] Specifically in this embodiment, the first transmission group 310 except the first output end 311, the second transmission group 320 except the second output end 321, and the one-way transmission member 330 are all located inside the installation box 350. The lifting member 340 is located outside the installation box 350.

[0062] As Figure 6 and Figure 7 shown, optionally, the first output end 311 and the second output end 321 extend out from opposite sides of the installation box 350. In this way, the brush roller assembly 100 and the lifting member 340 are respectively located on opposite sides of the installation box 350, ensuring that there is no interference between the brush roller assembly 100 and the lifting member 340, improving the reliability of the brush roller lifting device 10.

[0063] As Figure 8 , Figure 9 and Figure 10As shown, in one embodiment, the drive mechanism 200 includes a motor provided with an output shaft. The first transmission group 310 includes a first gear 312, a second gear 313, and a third gear 314. The output shaft is in transmission connection with the first gear 312. The first gear 312 meshes with the second gear 313, and the second gear 313 meshes with the third gear 314. The first output end 311 is disposed on the second gear 313, and the one-way transmission member 330 is mounted on the third gear 314.

[0064] When it is necessary to control the lifting of the brush roller assembly 100, the output shaft of the motor is controlled to rotate clockwise. The output shaft drives the third gear 314 to rotate clockwise through the first gear 312 and the second gear 313. At this time, the one-way transmission member 330 is in a transmission state, so as to be able to transmit the force on the third gear 314 to the second output end 321. The second output end 321 drives the lifting member 340 to rotate and press down the base 20, so as to drive the brush roller assembly 100 to rise and lift.

[0065] When it is necessary to control the brush roller assembly 100 to descend and reset, the output shaft of the motor is controlled to rotate counterclockwise. The output shaft drives the third gear 314 to rotate counterclockwise through the first gear 312 and the second gear 313. At this time, the one-way transmission member 330 is in an idle state, so as to cut off the transmission of force between the third gear 314 and the second output end 321. The lifting member 340 cannot rotate and press down the base 20, and the brush roller assembly 100 descends and resets under the action of its own gravity.

[0066] Wherein, the first gear 312 can be directly meshed with the second gear 313, or can be meshed with the second gear 313 at an interval through a transmission gear set. Specifically in this embodiment, the first transmission group 310 further includes a fourth gear 315 and a fifth gear 316. The first gear 312 meshes with the fourth gear 315, the fourth gear 315 meshes with the fifth gear 316, and the fifth gear 316 meshes with the second gear 313. Any one of the second gear 313, the third gear 314, the fourth gear 315, and the fifth gear 316 can be provided with a plurality of tooth portions. The third gear 314 is provided with a central hole, and the one-way transmission member 330 is mounted in the central hole.

[0067] Wherein, the lifting member 340 can be directly connected to the one-way transmission member 330, or can be connected to the one-way transmission member 330 at an interval through an intermediate element.

[0068] Such as Figure 9 and Figure 10As shown, in one embodiment, the second transmission group 320 includes a first transmission member 322, one end of which is in transmission connection with the one-way transmission member 330, and the other end is configured as a second output end 321. In this way, the first transmission member 322 can adjust the relative position between the lifting member 340 and the one-way transmission member 330, so that the one-way transmission member 330 can be hidden in the installation box 350 while the lifting member 340 is located outside the installation box 350 to be able to interfere with the base 20, thereby improving the reliability of the roller brush lifting device 10.

[0069] like Figure 9 and Figure 10 As shown, optionally, the second transmission group 320 further includes a sixth gear 323, a seventh gear 324, and a second transmission member 325. One end of the second transmission member 325 is in transmission connection with the one-way transmission member 330. The sixth gear 323 is sleeved on the end of the second transmission member 325 away from the one-way transmission member 330. The seventh gear 324 is meshed with the sixth gear 323 and sleeved on the end of the first transmission member 322 away from the first output end 311. In this way, when the one-way transmission member 330 is in the transmission state, the force on the first transmission group 310 can be transmitted to the second transmission member 325 through the one-way transmission member 330. The force on the second transmission member 325 is transmitted to the second output end 321 through the sixth gear 323, the seventh gear 324, and the first transmission member 322. The second output end 321 drives the lifting member 340 to rotate and press down the base 20, thereby driving the roller brush assembly 100 to rise and lift up.

[0070] Specifically in this embodiment, the first transmission member 322 and the second transmission member 325 can both be configured as transmission shafts.

[0071] The roller brush assembly 100 can be movably mounted on the base 20 by means of rotation, sliding, transmission or other connection methods.

[0072] like Figure 3 、 Figure 12 and Figure 13 As shown, in one embodiment, the roller brush assembly 100 includes a roller brush body 110 and a mounting cavity 120. The roller brush body 110 is installed in the mounting cavity 120 and is transmission-connected to the first output end 311. The outer wall of the mounting cavity 120 is provided with a cantilever 130, which is used to be rotatably connected to the base 20.

[0073] Optionally, two cantilevers 130 are provided, one on each side of the mounting cavity 120. Each cantilever 130 has a rotating shaft at one end away from the mounting cavity 120. The base 20 has two axial holes, and the two rotating shafts are rotatably connected to the corresponding axial holes. The drive mechanism 200 is fixedly mounted at one end of the mounting cavity 120.

[0074] It should be noted that the installation cavity 120 is rotatably installed on the base 20 through the cantilever 130. The cantilever 130 is integrally formed with the installation cavity 120, and the driving mechanism 200 and the transmission mechanism 300 can be provided only at one end of the installation cavity 120.

[0075] Optionally, one end of the cantilever 130 is rotatably connected to the base 20, and the other end is fixedly connected to the installation cavity 120. The installation box 350 is fixedly installed on the outer wall of the installation cavity 120. The lifting member 340 is rotatably installed on the installation box 350 through the first transmission member 322 and is in contact and cooperation with the support surface 21 on the base 20. When the driving mechanism 200 is in the first working state, the second output end 321 drives the lifting member 340 to rotate and press down the support surface 21 to drive the installation box 350 to rise and lift, and the installation box 350 drives the brush roller assembly 100 to rotate and lift in the vertical plane with the connection point between the cantilever 130 and the base 20 as the center of the circle.

[0076] Specifically in this embodiment, when the driving mechanism 200 is in the first working state and the brush roller body 110 in the brush roller assembly 100 needs to rise by 6 mm to 9 mm, the brush roller assembly 100 needs to rotate correspondingly by 5.6° to 8.3°, and the lifting member 340 needs to rotate correspondingly by 33.3° to 49°.

[0077] As Figure 3 and Figure 4 shown, in one embodiment, the brush roller lifting device 10 further includes a trigger member 400 and a controller. The trigger member 400 is installed on the base 20 and is used to be triggered when the brush roller assembly 100 rises to a preset height. Both the trigger member 400 and the driving mechanism 200 are communicatively connected to the controller. In this way, during the rising process of the brush roller assembly 100, when the brush roller assembly 100 rises to the preset height, the trigger member 400 will be triggered by the brush roller assembly 100 and transmit the trigger signal to the controller, so that the controller can control the driving mechanism 200 to stop working, improving the practicability of the brush roller lifting device 10.

[0078] Among them, the preset height can be flexibly adjusted according to actual usage needs. Specifically in this embodiment, the trigger member 400 can be set as a limit switch. The controller can be set as a single-chip microcomputer or a programmable logic controller. The controller can be communicatively connected to the trigger member 400 and the driving mechanism 200 through data lines, wires, Bluetooth, wireless communication network technology or other means.

[0079] In one embodiment, a cleaning robot is provided, including a base 20 and the brush roller lifting device 10 in any of the above embodiments.

[0080] In the cleaning robot in the above embodiments, by arranging the first output end 311 for outputting the rotational power of the rolling brush and the second output end 321 for outputting the lifting power of the rolling brush on a transmission mechanism 300, and the transmission mechanism 300 is integrally fixed on one side of the driving mechanism 200, one gearbox and one motor can achieve the two functions of rolling brush lifting and rotation simultaneously, simplifying the structure of the cleaning robot, reducing the cost and occupied space of the cleaning robot.

[0081] Optionally, when the cleaning robot performs dry mopping, the controller controls the driving mechanism 200 to be in the second tooling state, the one-way transmission member 330 is in the no-load state correspondingly, and the rolling brush assembly 100 descends and contacts the surface to be cleaned (such as the ground) for cleaning. When the cleaning robot performs wet mopping, the controller controls the driving mechanism 200 to be in the first tooling state, the one-way transmission member 330 is in the transmission state correspondingly, and the rolling brush assembly 100 ascends and leaves the ground, ensuring that the rolling brush assembly 100 will not be wetted, improving the cleaning effect and service life of the cleaning robot.

[0082] Optionally, the cleaning robot further includes a water stain detection member communicatively connected to the controller, and the water stain detection member is used to detect whether there is residual water stain on the surface to be cleaned. Thus, during the process of the cleaning robot performing dry mopping on the surface to be cleaned, the water stain detection member can detect in real time whether there is residual water stain on the surface to be cleaned, and feedback the position information of the residual water stain to the controller, so that the rolling brush assembly 100 can ascend to leave the surface to be cleaned when passing through this position, ensuring that the rolling brush assembly 100 will not be wetted, improving the cleaning effect and service life of the cleaning robot.

[0083] Specifically in this embodiment, the water stain detection member can be set as an image sensor.

[0084] In the description of the present application, it should be understood that if there appear these terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0085] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0086] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0088] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0089] It should also be understood that when interpreting the connection relationship or position relationship of elements, although not explicitly described, the connection relationship and position relationship are interpreted to include an error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited herein.

[0090] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0091] The above embodiments only express several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A roller brush lifting device, characterized in that, The roller brush lifting device (10) is mounted on a base (20) and comprises: A roller brush assembly (100) is movably mounted on the base (20); and Driving mechanism (200); A transmission mechanism (300) is fixedly connected to one side of the driving mechanism (200); The transmission mechanism (300) is provided with a first output end (311) and a second output end (321), wherein the first output end (311) is used to drive the roller brush assembly (100) to rotate, and the second output end (321) is used to drive the roller brush assembly (100) to rise and fall.

2. The roller brush lifting device according to claim 1, wherein The transmission mechanism (300) comprises a first transmission group (310) having the first output end (311), a second transmission group (320) having the second output end (321), and a one-way transmission member (330); the first transmission group (310) is transmission-connected between the driving mechanism (200) and the one-way transmission member (330), and the one-way transmission member (330) is selectively transmission-connected between the first transmission group (310) and the second transmission group (320); Wherein, when the one-way transmission member (330) is in an unloaded state, the one-way transmission member (330) cuts off the transmission of force between the first transmission group (310) and the second transmission group (320), the first output end (311) can drive the roller brush assembly (100) to rotate, and the second output end (321) does not move; when the one-way transmission member (330) is in a transmission state, the one-way transmission member (330) transmits the force of the first transmission group (310) to the second transmission group (320), the first output end (311) can drive the roller brush assembly (100) to rotate, and the second output end (321) can synchronously drive the roller brush assembly (100) to rise and fall.

3. The roller brush lifting device according to claim 2, wherein The transmission mechanism (300) further comprises a lifting member (340), wherein the lifting member (340) is in transmission connection with the second output end (321); when the one-way transmission member (330) is in a transmission state, the lifting member (340) rotates following the second output end (321) and contacts the base (20), thereby converting the rotation into a lifting motion of the roller brush assembly (100).

4. The roller brush lifting device according to claim 3, characterized in that The lifting member (340) is used to engage with the supporting surface (21) on the base (20).

5. The roller brush lifting device according to claim 3, characterized in that, The transmission mechanism (300) further comprises an installation box (350) mounted on the roller brush assembly (100); the first transmission group (310), the second transmission group (320) and the one-way transmission member (330) are all mounted on the installation box (350); the first output end (311) extends out of the installation box (350) and is transmission-connected to the roller brush assembly (100); and the second output end (321) extends out of the installation box (350) and is transmission-connected to the lifting member (340).

6. The roller brush lifting device according to claim 5, characterized in that, The first output end (311) and the second output end (321) extend from opposite sides of the installation box (350) respectively.

7. The roller brush lifting device according to any one of claims 2 to 6, characterized in that, The driving mechanism (200) includes a motor provided with an output shaft. The first transmission group (310) includes a first gear (312), a second gear (313), and a third gear (314). The output shaft is in transmission connection with the first gear (312). The first gear (312) meshes with the second gear (313), and the second gear (313) meshes with the third gear (314). The first output end (311) is arranged on the second gear (313), and the one-way transmission member (330) is installed on the third gear (314).

8. The roller brush lifting device according to claim 7, characterized in that, The first transmission group (310) further includes a fourth gear (315) and a fifth gear (316). The first gear (312) meshes with the fourth gear (315), the fourth gear (315) meshes with the fifth gear (316), and the fifth gear (316) meshes with the second gear (313).

9. The roller brush lifting device according to any one of claims 2 to 6, characterized in that The second transmission group (320) includes a first transmission member (322). One end of the first transmission member (322) is in transmission connection with the one-way transmission member (330), and the other end is set as the second output end (321).

10. The roller brush lifting device according to claim 9, characterized in that, The second transmission group (320) further includes a sixth gear (323), a seventh gear (324), and a second transmission member (325). One end of the second transmission member (325) is in transmission connection with the one-way transmission member (330). The sixth gear (323) is sleeved on the end of the second transmission member (325) far from the one-way transmission member (330). The seventh gear (324) meshes with the sixth gear (323) and is sleeved on the end of the first transmission member (322) far from the first output end (311).

11. The roller brush lifting device according to any one of claims 1 to 6, characterized in that, The brush roller assembly (100) includes a brush roller body (110) and an installation cavity (120). The brush roller body (110) is installed in the installation cavity (120) and is in transmission connection with the first output end (311). The outer wall of the installation cavity (120) is provided with a cantilever (130), and the cantilever (130) is used for rotatably connecting with the base (20).

12. The roller brush lifting device according to any one of claims 1 to 6, characterized in that, The brush roller lifting device (10) further includes a trigger member (400) and a controller. The trigger member (400) is installed on the base (20) and is used for being triggered when the brush roller assembly (100) rises to a preset height. Both the trigger member (400) and the driving mechanism (200) are in communication connection with the controller.

13. A cleaning robot, characterized in that, It includes a base (20) and the brush roller lifting device (10) according to any one of claims 1 to 12.

Images