Cleaning assembly and cleaning robot

Abstract

The invention relates to the field of cleaning robots, and discloses a cleaning assembly and a cleaning robot, the cleaning assembly comprises a support, a cleaning part, a driving mechanism and a lifting mechanism, the driving mechanism comprises a driving motor and a first transmission assembly, the lifting mechanism comprises a second transmission assembly and a lifting assembly, and the driving motor, the first transmission assembly and the second transmission assembly are sequentially in transmission connection; the second transmission assembly is in one-way transmission connection with the lifting assembly, when the driving motor is in the first working state, the driving motor sequentially transmits power to the first transmission assembly, the first transmission assembly drives the cleaning piece to rotate and clean the ground, and when the driving motor is in the second working state, the driving motor drives the cleaning piece to rotate. The driving motor sequentially transmits power to the first transmission assembly and the second transmission assembly, the second transmission assembly transmits the power to the lifting assembly, and the lifting assembly drives the support and the cleaning part to be lifted to avoid obstacles and the like. Therefore, ground cleaning can be achieved only through one driving motor, and the cleaning piece can be lifted.

Description

Technical Field

[0001] The present invention relates to the field of cleaning technology, and in particular to a cleaning component and a cleaning robot. Background Art

[0002] With the continuous advancement of science and technology, more and more intelligent devices are being applied to people's daily work and life, such as cleaning robots, handheld floor scrubbers, etc. These intelligent devices can rely on certain artificial intelligence to automatically complete the floor cleaning work and reduce the user's hygiene and cleaning burden.

[0003] Taking a cleaning robot as an example, during operation, the cleaning robot uses a motor to drive the cleaning roller to roll to clean the floor. However, in the cleaning area, there are usually carpets on the floor or obstacles, or there is no need to clean some areas. In these scenarios, another motor mechanism is needed to lift the cleaning roller to a certain height so that the cleaning roller can pass over the obstacles to clean other areas.

[0004] Therefore, in the prior art, a cleaning robot with a drum lifting function is usually provided with two motors, which respectively realize the two functions of rotating and lifting the cleaning drum. However, the two motors are expensive, which increases the manufacturing cost of the cleaning robot. On the other hand, the two motors occupy more internal space of the cleaning robot, which increases the size and weight of the cleaning robot. Summary of the invention

[0005] The embodiments of the present invention aim to provide a cleaning assembly and a cleaning robot to solve the technical problem in the prior art that the production cost of the cleaning robot is too high due to the use of two motors to respectively realize the rotation and lifting of the drum.

[0006] The embodiment of the present invention adopts the following technical solution to solve the technical problem: a cleaning component is provided, comprising:

[0007] Bracket;

[0008] A cleaning member installed on the inner side of the bracket;

[0009] A driving mechanism is mounted on the bracket, the driving mechanism comprises a driving motor and a first transmission assembly, the driving motor is in driving connection with the first transmission assembly, and the first transmission assembly is in driving connection with the cleaning member, so that the cleaning member rotates;

[0010] A lifting mechanism is installed on the bracket, and the lifting mechanism includes a second transmission assembly and a lifting assembly. The first transmission assembly is transmission-connected to the second transmission assembly, and the second transmission assembly is unidirectionally transmission-connected to the lifting assembly. The second transmission assembly transmits power to the lifting assembly so that the lifting assembly drives the cleaning member to lift.

[0011] In some embodiments, the second transmission assembly includes a connecting member and a one-way bearing, one end of the connecting member is transmission-connected to the first transmission assembly, the other end of the connecting member is provided with a bearing hole, the one-way bearing is installed in the bearing hole, and the one-way bearing is transmission-connected to the lifting assembly.

[0012] In some embodiments, the first transmission assembly includes a first transmission component and a second transmission component, and the first transmission component is respectively connected to the driving motor and the cleaning member in a transmission manner;

[0013] When the output power of the drive motor is less than or equal to a preset threshold, the first transmission component is meshed with the second transmission component, and when the output power of the drive motor is greater than the preset threshold, the first transmission component and the second transmission component slide relative to each other.

[0014] In some embodiments, the first transmission component includes a gear set, a fixed shaft and a transmission gear, the drive motor is in transmission connection with the gear set, the gear set is in transmission connection with the cleaning member and the transmission gear respectively, and the transmission gear is mounted on the fixed shaft;

[0015] The second transmission component includes a clutch and an elastic member, wherein the clutch is mounted on the fixed shaft and is in transmission connection with the second transmission assembly, and the elastic member is arranged between the clutch and the second transmission assembly;

[0016] When the output power of the drive motor is less than or equal to a preset threshold, the transmission gear is meshed with the clutch member, and when the output power of the drive motor is greater than the preset threshold, the elastic member is compressed, the clutch member moves axially in a direction away from the transmission gear, and the transmission gear and the clutch member slide relative to each other.

[0017] In some embodiments, a light shield is further included. After the lifting assembly drives the cleaning member and the bracket to be lifted to a preset position, the light shield can prevent light from entering the photoelectric sensor on the robot body, so that the photoelectric sensor generates a control signal and controls the drive motor to stop rotating.

[0018] In some embodiments, after the lifting assembly drives the cleaning member and the bracket to be lifted to a preset position, the output power of the driving motor is equal to the preset threshold.

[0019] In some embodiments, the transmission gear has a first tooth at one end facing the clutch, and the clutch has a second tooth at one end facing the transmission gear, and the first tooth and the second tooth can mesh with each other or slide relatively.

[0020] In some embodiments, a slide groove is formed at one end of the second transmission assembly facing the clutch member, and the clutch member is slidably installed in the slide groove.

[0021] In some embodiments, the inner wall of the slide slot and the outer wall of one end of the clutch member facing the slide slot are polygonal structures respectively.

[0022] In some embodiments, the second transmission component further includes a limiter, which is mounted on the fixed shaft and located between the elastic member and the second transmission assembly;

[0023] A receiving groove is formed at one end of the clutch member facing the second transmission component, a mounting column is arranged in the receiving groove, the fixed shaft is passed through the mounting column, the elastic member is sleeved on the mounting column, the limiting member is at least partially received in the receiving groove, and the two ends of the elastic member are respectively abutted against the bottom of the receiving groove and the limiting member.

[0024] In some embodiments, it further comprises a housing, wherein the housing is mounted on the bracket, and the first transmission component is mounted in the housing;

[0025] The shell is provided with a mounting hole, and the clutch member is slidably mounted in the mounting hole.

[0026] In some embodiments, the lifting assembly includes a rotating shaft and a pull rope, the second transmission assembly is connected to the rotating shaft in a one-way transmission manner, and the rotating shaft is rotatably mounted on the bracket, one end of the pull rope is connected to the rotating shaft, and the other end is connected to the robot body.

[0027] In some embodiments, a limiting groove is provided on one side of the rotating shaft facing the bracket, a rope threading hole is provided at the bottom of the limiting groove, one end of the pull rope is fixedly installed in the limiting groove, and the other end of the pull rope passes through the rope threading hole and is connected to the robot body.

[0028] In some embodiments, a bearing seat is disposed on the bracket, a bearing is disposed in the bearing seat, and the rotating shaft is rotatably installed in the bearing.

[0029] In some embodiments, a guide column is provided on the bracket, and the guide column can be slidably installed in a guide groove on the robot body.

[0030] In order to solve the technical problem, the embodiment of the present invention also adopts the following technical solution to provide a cleaning robot, including the cleaning component as described in any of the above embodiments; and

[0031] The robot body is provided with the cleaning component mounted on the robot body.

[0032] Compared with the prior art, in the cleaning assembly and cleaning robot provided by the embodiment of the present invention, the driving motor is a forward and reverse rotating motor, which has a first working state and a second working state. In the first working state, the driving motor sequentially transmits power to the first transmission assembly and the second transmission assembly. At this time, the second driving assembly cannot transmit power to the lifting assembly, and the cleaning member will not be lifted, so the first transmission assembly drives the cleaning member to rotate and clean the ground. In the second working state, the driving motor sequentially transmits power to the first transmission assembly and the second transmission assembly, and the second transmission assembly transmits power to the lifting assembly, and the lifting assembly drives the bracket and the cleaning member to lift to avoid obstacles, etc. Therefore, in this embodiment, only one driving motor is needed to realize the conventional cleaning function of the cleaning member on the ground, and it can also ensure that the cleaning member can be lifted when encountering a carpet or an obstacle, so as to avoid mopping or avoiding obstacles. Compared with setting two motors to drive the cleaning member to rotate and lift respectively, reducing the number of motors can greatly reduce the product cost, save the internal space of the cleaning robot, and can reduce the volume and weight of the product, so that the product has low energy consumption and longer battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0034] Figure 1 is a schematic diagram of a three-dimensional structure of a cleaning robot provided by one embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of the three-dimensional structure of a cleaning component in an embodiment of the present invention;

[0036] Figure 3 is a schematic diagram of the structure of the cleaning component near the driving mechanism in an embodiment of the present invention;

[0037] Figure 4 is a schematic cross-sectional structural diagram of a cleaning component in an embodiment of the present invention;

[0038] Figure 5 is a schematic diagram of the exploded structure of the first transmission component, the second transmission component, the second transmission assembly and the lifting assembly in an embodiment of the present invention;

[0039] Figure 6 It is a schematic diagram of the structure after the driving mechanism, the lifting mechanism and the cleaning member are assembled in an embodiment of the present invention;

[0040] Figure 7 is a schematic diagram of the three-dimensional structure of a connecting member in an embodiment of the present invention;

[0041] Figure 8 is a schematic diagram of the three-dimensional structure of the connecting member in another perspective in an embodiment of the present invention;

[0042] Fig. 9 is a schematic cross-sectional structure diagram of the driving mechanism and the lifting mechanism after assembly in an embodiment of the present invention;

[0043] Fig.10 is a schematic diagram of the three-dimensional structure of a transmission gear in an embodiment of the present invention;

[0044] Fig.11 is a schematic diagram of the three-dimensional structure of a clutch member in an embodiment of the present invention;

[0045] Fig.12 is a schematic diagram of the three-dimensional structure of the clutch member in another perspective in an embodiment of the present invention;

[0046] Fig.13 is a schematic diagram of the three-dimensional structure of the rotating shaft in an embodiment of the present invention;

[0047] Fig.14 It is a schematic diagram of the three-dimensional structure of the bracket in an embodiment of the present invention.

[0048] Description of reference numerals:

[0049] 1000, cleaning robot; 100, cleaning assembly; 10, bracket; 11, bearing seat; 12, bearing; 13, guide column; 20, cleaning member; 30, driving mechanism; 31, driving motor; 32, first transmission assembly; 321, first transmission member; 3210, gear set; 3211, fixed shaft; 3212, transmission gear; 3213, first tooth; 322, second transmission member; 3220, clutch member; 3221, second tooth; 3222, receiving groove; 3223, mounting column; 3224, elastic member; 3225, limiting member; 40, lifting mechanism; 41, second transmission assembly; 410, connecting member; 4100, bearing hole; 4101, slide groove; 411, one-way bearing; 412, limiting ring; 42, lifting assembly; 420, rotating shaft; 4200, limiting groove; 4201, rope threading hole; 421, pull rope; 50, shell; 51, mounting hole; 52, waterproof sleeve; 53, light shielding plate; 200, robot body. DETAILED DESCRIPTION

[0050] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connecting" another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0052] In order to solve the technical problem that two motors are required in the prior art to realize the rotation of the drum and the lifting of the drum respectively, which leads to high costs, the present invention provides a cleaning component and a cleaning robot, which only need to use one drive motor to realize the rotation of the drum and the lifting of the drum respectively. Specifically, when the drive motor is in the first working state, the drive motor transmits power to the first transmission component, and the first transmission component drives the cleaning member to rotate. When the drive motor is in the second working state, the drive motor transmits power to the first transmission component and the second transmission component in turn, and the second transmission component transmits power to the lifting component, and the lifting component drives the cleaning member to lift to avoid obstacles, etc. In addition, in the present invention, when the output power of the drive motor is greater than the preset threshold, the first transmission component and the second transmission component can be separated, which can play a role in slip protection when the drive motor is overloaded, and ensure that the drive mechanism and the lifting structure are not damaged.

[0053] The following will be combined with the attached Figures 1 to 14 The cleaning component and the cleaning robot provided in the embodiments of the present invention are described in detail.

[0054] See also Figure 1 , Figure 1 This is a schematic diagram of the overall structure of the cleaning robot. The cleaning robot 1000 includes a robot body 200 and a cleaning component 100. The cleaning component 100 is installed at the bottom of the robot body 200. When the cleaning robot 1000 cleans the floor, the cleaning component 100 contacts the floor to clean the floor.

[0055] See also Figures 2 to 7 , Figure 2 It is a three-dimensional structural diagram of the cleaning component. Figure 3 This is a schematic diagram of the structure of the cleaning component near the driving mechanism. Figure 4 is a schematic diagram of the cross-sectional structure of the cleaning component. Figure 5 It is a schematic diagram of the exploded structure of the first transmission component, the second transmission component, the second transmission assembly and the lifting assembly. Figure 6 It is a schematic diagram of the structure after the drive mechanism, lifting mechanism and cleaning parts are assembled. Figure 7 It is a three-dimensional structural schematic diagram of the connecting piece.

[0056] The cleaning component 100 includes a bracket 10, a cleaning member 20, a driving mechanism 30 and a lifting mechanism 40. The cleaning member 20 is installed on the inner side of the bracket 10. The driving mechanism 30 is installed on the bracket 10. The driving mechanism 30 includes a driving motor 31 and a first transmission component 32. The driving motor 31 is connected to the first transmission component 32 in a transmission connection. The first transmission component 32 is connected to the cleaning member 20 in a transmission connection so that the cleaning member 20 rotates. The lifting mechanism 40 is installed on the bracket 10. The lifting mechanism 40 includes a second transmission component 41 and a lifting component 42. The first transmission component 32 is connected to the second transmission component 41 in a transmission connection, and the second transmission component 41 is connected to the lifting component 42 in a unidirectional transmission connection. The second transmission component 41 transmits power to the lifting component 42 so that the lifting component 42 drives the cleaning member 20 to lift.

[0057] The bracket 10 is disposed on the robot body 200 , and a cleaning member 20 is installed on the inner side of the bracket 10 . Optionally, the cleaning member 20 is a roller, and the roller is used to clean the floor.

[0058] The driving mechanism 30 is installed on the bracket 10, and the driving motor 31 includes a driving motor 31 and a first transmission assembly 32. The driving motor 31 is a forward and reverse rotating motor. The driving motor 31 has a first working state and a second working state. Optionally, when the driving motor 31 rotates forward, it corresponds to the first working state, and when the driving motor 31 rotates reversely, it corresponds to the second working state; or, when the driving motor 31 rotates reversely, it corresponds to the first working state, and when the driving motor 31 rotates forward, it corresponds to the second working state.

[0059] The first transmission assembly 32 is mounted on the bracket 10, and the first transmission assembly 32 is respectively connected to the driving motor 31 and the cleaning member 20. When the driving motor 31 is started, the driving motor 31 transmits power to the first transmission assembly 32 and the cleaning member 20 in sequence, thereby causing the cleaning member 20 to rotate.

[0060] The lifting mechanism 40 is installed on the bracket 10. Optionally, the lifting mechanism 40 is installed on the side of the bracket 10 away from the cleaning member 20 (above the bracket 10). The lifting mechanism 40 includes a second transmission component 41 and a lifting component 42. The second transmission component 41 is arranged between the first transmission component 32 and the second transmission component 41. The first transmission component 32 is connected to the second transmission component 41 for transmission, and the second transmission component 41 is connected to the lifting component 42 for unidirectional transmission, that is, the second transmission component 41 can only transmit power to the lifting component 42 in one direction. In other words, if the drive motor 31 is in the first working state, the second transmission component 41 can transmit power to the lifting component 42, then when the drive motor 31 is in the second working state, the second transmission component 41 cannot transmit power to the lifting component 42, or, if the drive motor 31 is in the second working state, the second transmission component 41 can transmit power to the lifting component 42, then when the drive motor 31 is in the first working state, the second transmission component 41 cannot transmit power to the lifting component 42.

[0061] For ease of understanding, the following description will assume that when the drive motor 31 rotates forward, the drive motor 31 is in the first working state, and the second transmission component 41 cannot transmit power to the lifting component 42; and when the drive motor 31 rotates reversely, the drive motor 31 is in the second working state, and the second transmission component 41 can transmit power to the lifting component 42.

[0062] In this embodiment, when the drive motor 31 is in the first working state, the drive motor 31 sequentially transmits power to the first transmission assembly 32 and the second transmission assembly 41. At this time, the second transmission assembly 41 cannot transmit power to the lifting assembly 42, and the cleaning member 20 will not be lifted. Therefore, the first transmission assembly 32 drives the cleaning member 20 to rotate and clean the floor. When the drive motor 31 is in the second working state, the drive motor 31 sequentially transmits power to the first transmission assembly 32 and the second transmission assembly 41, and the second transmission assembly 41 transmits power to the lifting assembly 42, and the lifting assembly 42 drives the bracket 10 and the cleaning member 20 to lift to avoid obstacles, etc.

[0063] It can be seen that in this embodiment, a driving motor 31 can not only realize the normal cleaning function of the cleaning member 20 on the ground, but also ensure that the cleaning member 20 can be lifted when encountering a carpet or an obstacle, avoiding the need to perform mopping work or avoid obstacles. Compared with setting two motors to drive the cleaning member 20 to rotate and lift respectively, reducing the number of motors can greatly reduce product costs, save internal space of the cleaning robot 1000, and reduce the weight of the product, so that the product has low energy consumption and longer battery life.

[0064] It should be noted that when the driving motor 31 is in the second working state, the first transmission assembly 32 will also drive the cleaning member 20 to rotate, but at this time the cleaning member 20 is lifted up and will not contact the ground, so the ground cleaning operation will not be performed.

[0065] In some embodiments, the second transmission assembly 41 includes a connecting member 410 and a one-way bearing 411. One end of the connecting member 410 is transmission-connected to the first transmission assembly 32, and the other end of the connecting member 410 is provided with a bearing hole 4100 (see FIG. Figure 7 ), the one-way bearing 411 is installed in the bearing hole 4100, and the one-way bearing 411 is connected to the lifting assembly 42 in a one-way transmission manner.

[0066] The second transmission component 41 includes a connecting member 410 and a one-way bearing 411. The connecting member 410 is arranged between the first transmission component 32 and the lifting component 42. A bearing hole 4100 is opened on the connecting member 410. The one-way bearing 411 is installed in the bearing hole 4100. The outer ring of the one-way bearing 411 is fixedly matched with the inner wall of the bearing hole 4100, so that the connecting member 410 can drive the outer ring of the one-way bearing 411 to rotate. The inner ring of the one-way bearing 411 is transmission-connected to the lifting component 42, so that when the inner ring of the one-way bearing 411 rotates, it can drive the lifting component 42 to move and lift the bracket 10 and the cleaning member 20.

[0067] When the drive motor 31 rotates forward, that is, the drive motor 31 is in the first working state, the drive motor 31 transmits power to the first transmission component 32 and the connecting member 410 in sequence, so that the connecting member 410 rotates forward and drives the outer ring of the one-way bearing 411 to rotate forward. At this time, the inner ring of the one-way bearing 411 will not rotate with the outer ring, so no power is transmitted to the lifting component 42, and the cleaning member 20 will not be lifted. Only the first transmission component 32 drives the cleaning member 20 to rotate and clean the floor.

[0068] When the driving motor 31 rotates in the reverse direction, the driving motor 31 is in the second working state, and the driving motor 31 transmits power to the first transmission component 32 and the connecting member 410 in turn, so that the connecting member 410 rotates in the reverse direction and drives the outer ring of the one-way bearing 411 to rotate in the reverse direction. At this time, the inner ring of the one-way bearing 411 rotates with its outer ring, and transmits power to the lifting component 42 through the inner ring of the one-way bearing 411. The lifting component 42 moves and drives the bracket 10 and the cleaning member 20 to be lifted to avoid obstacles.

[0069] After the cleaning member 20 crosses the obstacle, the driving motor 31 is powered off, and the cleaning member 20 and the bracket 10 move downward under their own gravity and return to their original positions. At this time, the cleaning member 20 contacts the ground again.

[0070] In this embodiment, a one-way bearing 411 is provided between the first transmission component 32 and the lifting component 42. When the driving motor 31 rotates forward and is in the first working state, the one-way bearing 411 prevents power from being transmitted to the lifting component 42, so that the first transmission component 32 can normally drive the cleaning member 20 to rotate for bottom cleaning. When the driving motor 31 rotates reversely, the driving motor 31 is in the second working state, and power is transmitted to the lifting component 42 through the one-way bearing 411, so that the cleaning member 20 can be lifted. This transmission design is simple, helps to improve transmission stability, has low cost and saves installation space.

[0071] In some embodiments, the outer ring of the one-way bearing 411 is interference fit with the inner wall of the bearing hole 4100, so that the connector 410 drives the outer ring of the one-way bearing 411 to rotate. In addition, the outer ring of the one-way bearing 411 can also be fixedly matched with the hole wall of the bearing hole 4100 by bonding or other means.

[0072] In some embodiments, the first transmission assembly 32 includes a first transmission component 321 and a second transmission component 322 (see Figure 4 ), the first transmission component 321 is respectively connected to the driving motor 31 and the cleaning component 20, when the output power of the driving motor 31 is less than or equal to a preset threshold, the first transmission component 321 is connected to the second transmission component 322, when the output power of the driving motor 31 is greater than the preset threshold, the first transmission component 321 is separated from the second transmission component 322.

[0073] In this embodiment, the preset threshold value can be obtained based on the rated power of the drive motor 31.

[0074] Optionally, the preset threshold is the rated power of the drive motor 31. It can be understood that, depending on the actual situation, the preset threshold may be slightly larger than the rated power of the drive motor 31 or slightly smaller than the rated power of the drive motor 31. In this embodiment, there is no strict restriction on the specific numerical range of the preset threshold.

[0075] The first transmission assembly 32 includes a first transmission component 321 and a second transmission component 322. The first transmission component 321 is installed at one end of the bracket 10. The first transmission component 321 is connected to the driving motor 31. After the driving motor 31 transmits power to the first transmission component 321, the first transmission component 321 transmits power to the cleaning member 20 and drives the cleaning member 20 to rotate.

[0076] When the output power of the drive motor 31 is less than or equal to a preset threshold, such as when the output power of the drive motor 31 is less than or equal to the rated power of the drive motor 31, the first transmission component 321 is connected to the second transmission component 322, and the first transmission component 321 also transmits power to the second transmission component 322, so that the second transmission component 322 drives the connecting member 410 to rotate, and then the connecting member 410 can transmit power to the one-way bearing 411, thereby ensuring the normal lifting of the cleaning member 20.

[0077] When the output power of the drive motor 31 is greater than a preset threshold, such as when the output power of the drive motor 31 is greater than the rated power of the drive motor 31, the drive motor 31 is overloaded, and the first transmission component 321 and the second transmission component 322 are separated. Therefore, no power is transmitted to the second transmission component 322 and the second transmission assembly 41, thereby protecting the drive mechanism 30 and the lifting mechanism 40 and avoiding damage to the drive mechanism 30 and the lifting mechanism 40 due to overload of the drive motor 31.

[0078] It should be noted that the separation of the first transmission component 321 and the second transmission component 322 does not mean that the first transmission component 321 and the second transmission component 322 will not contact each other. It only means that when the output power of the drive motor 31 is greater than the preset threshold, no power will be transmitted between the first transmission component 321 and the second transmission component 322.

[0079] It is understandable that, when the driving motor 31 normally drives the cleaning member 20 to clean the floor and the cleaning member 20 is lifted, the output power of the driving motor 31 will be less than the preset threshold value. Only when a fault occurs during the lifting of the cleaning member 20, for example, when a system fault causes the bracket 10 and the cleaning member 20 to be lifted too high, or the bracket 10 is stuck during the lifting process, the driving motor 31 will continue to output torque and the output power of the driving motor 31 will be greater than the preset threshold value. Therefore, in this embodiment, when a fault occurs during the cleaning member 20 cleaning the floor and the cleaning member 20 is lifted, the first transmission component 321 and the second transmission component 322 will separate from each other to protect the driving mechanism 30 and the lifting mechanism 40 from damage.

[0080] See also Figures 8 to 12 , Figure 8 This is a three-dimensional structural diagram of the connector from another perspective. Fig. 9 It is a schematic diagram of the cross-sectional structure of the drive mechanism and the lifting mechanism after assembly. Fig.10 It is a three-dimensional structural diagram of the transmission gear. Fig.11 It is a three-dimensional structural diagram of the clutch. Fig.12 It is a three-dimensional structural schematic diagram of the clutch from another perspective.

[0081] In some embodiments, the first transmission component 321 includes a gear group 3210, a fixed shaft 3211 and a transmission gear 3212. The drive motor 31 is transmission-connected to the gear group 3210. The gear group 3210 is transmission-connected to the cleaning member 20 and the transmission gear 3212 respectively. The transmission gear 3212 is installed on the fixed shaft 3211. The second transmission component 322 includes a clutch 3220 and an elastic member 3224. The clutch 3220 is installed on the fixed shaft 3211 and transmission-connected to the second transmission assembly 41. The elastic member 3224 is arranged between the clutch 3220 and the second transmission assembly 41. When the output power of the drive motor 31 is less than or equal to a preset threshold, the transmission gear 3212 is meshed with the clutch 3220. When the output power of the drive motor 31 is greater than the preset threshold, the elastic member 3224 is compressed, the clutch 3220 moves axially in a direction away from the transmission gear 3212, and the transmission gear 3212 and the clutch 3220 slide relative to each other.

[0082] The first transmission component 321 includes a gear set 3210, a fixed shaft 3211 and a transmission gear 3212. The output shaft of the driving motor 31 is connected to the gear set 3210, and the gear set 3210 is meshed with the transmission gear 3212. The fixed shaft 3211 is arranged in parallel with the axial direction of the cleaning member 20 and is located above the bracket 10. The transmission gear 3212 is rotatably mounted on the fixed shaft 3211. Optionally, the gear set 3210 includes a plurality of gears, and the power of the driving motor 31 is transmitted to the cleaning member 20 and the transmission gear 3212 respectively through the plurality of gears. The second transmission component 322 includes a clutch 3220 and an elastic member 3224. The clutch 3220 is rotatably mounted on the fixed shaft 3211, and the clutch 3220 can move along the axial direction of the fixed shaft 3211. The clutch 3220 is meshed with the transmission gear 3212 and is transmission-connected to the connecting member 410. The elastic member 3224 is installed between the clutch 3220 and the connecting member 410. Optionally, the elastic member 3224 is a spring, and the spring is sleeved on the fixed shaft 3211.

[0083] When the output power of the driving motor 31 is less than or equal to the preset threshold, the driving motor 31 transmits power to the gear set 3210. While the gear set 3210 drives the cleaning member 20 to rotate, the gear set 3210 also drives the transmission gear 3212 to rotate. The transmission gear 3212 drives the clutch 3220 to rotate. The clutch 3220 drives the connecting member 410 to rotate, and the connecting member 410 transmits power to the one-way bearing 411. In some embodiments, a rotating shaft 21 (see FIG. 21 ) is connected between the gear set 3210 and the cleaning member 20. Figure 4 ), the gear set 3210 transmits power to the cleaning member 20 through the rotating shaft 21, thereby driving the cleaning member 20 to rotate.

[0084] When the output power of the drive motor 31 is greater than a preset threshold, that is, when a fault occurs during the lifting process of the cleaning member 20, the drive motor 31 is overloaded, and slippage occurs between the transmission gear 3212 and the clutch 3220. The clutch 3220 overcomes the elastic force of the elastic member 3224 and moves in a direction away from the transmission gear 3212. No power is transmitted to the clutch 3220, thereby protecting the drive mechanism 30 and the lifting mechanism 40. When the fault is repaired, the clutch 3220 re-engages with the transmission gear 3212 under the action of the reset force of the elastic member 3224.

[0085] In some embodiments, the cleaning component 100 also includes a light shielding plate 53. After the lifting component 42 drives the cleaning member 20 to be lifted to a preset position, the light shielding plate 53 can prevent light from entering the photoelectric sensor on the robot body 200, so that the photoelectric sensor generates a control signal and controls the drive motor 31 to stop rotating.

[0086] In this embodiment, the preset position refers to the position of the cleaning member 20 and the bracket 10 after they are lifted to a certain height. It can be understood that those skilled in the art can set the preset position based on the actual usage scenario of the cleaning robot 1000.

[0087] The light shielding plate 53 may be mounted on the bracket 10 but is not limited thereto. For example, in some embodiments, the cleaning assembly 100 further includes a housing 50, and the light shielding plate 53 is mounted on the housing 50 (see Figure 4 ), optionally, the light blocking plate 53 and the housing 50 are an integrally formed structure.

[0088] A photoelectric sensor is installed on the robot body 200, and the photoelectric sensor is electrically connected to the drive motor 31. When the lifting component 42 drives the cleaning part 20 and the bracket 10 to lift up, the light baffle 53 will gradually move toward the direction of the photoelectric sensor until it is lifted to the preset position. The light baffle 53 will block the photoelectric sensor so that the photoelectric sensor detects the change in the current signal, and then generates a control signal to control the drive motor 31 to stop rotating. At this time, the cleaning part 20 and the bracket 10 rise to the preset position to avoid obstacles.

[0089] Optionally, the cleaning robot 1000 further includes a controller, which is electrically connected to the photoelectric sensor and the drive motor 31 respectively. The controller can receive a control signal sent by the photoelectric sensor and control the drive motor 31 to stop rotating.

[0090] In some embodiments, when the lifting assembly 42 drives the cleaning member 20 and the bracket 10 to be lifted to a preset position, the output power of the driving motor 31 reaches a preset threshold.

[0091] It is understandable that in the event that the photoelectric sensor is damaged or malfunctions, after the drive motor 31 drives the cleaning member 20 and the bracket 10 to rise to the preset position, it will continue to rotate and continue to output torque, causing the output power of the drive motor 31 to be greater than the preset power. At this time, the drive motor 31 is overloaded, and slippage occurs between the transmission gear 3212 and the clutch 3220. The clutch 3220 overcomes the elastic force of the elastic member 3224 and moves in a direction away from the transmission gear 3212. No power is transmitted to the clutch 3220, thereby protecting the drive mechanism 30 and the lifting mechanism 40.

[0092] In some embodiments, the transmission gear 3212 has a first tooth 3213 at one end facing the clutch 3220 , and the clutch 3220 has a second tooth 3221 at one end facing the transmission gear 3212 . The first tooth 3213 and the second tooth 3221 can mesh with each other or slide relatively.

[0093] Specifically, when the output power of the driving motor 31 is less than or equal to a preset threshold, the first gear and the second tooth 3221 mesh with each other and can transmit power normally, ensuring the normal lifting of the cleaning member 20. When the output power of the driving motor 31 is greater than the preset threshold, slippage occurs between the first tooth 3213 and the second tooth 3221, ensuring that the driving mechanism 30 and the lifting mechanism 40 are not damaged.

[0094] In some embodiments, a sliding groove 4101 is provided at one end of the second transmission assembly 41 facing the clutch member 3220 (see Figure 8 ), the clutch member 3220 is slidably installed in the slide groove 4101.

[0095] In this embodiment, a slide groove 4101 is provided at one end of the connecting member 410 toward the clutch member 3220, and a gap is provided between the clutch member 3220 and the bottom of the slide groove 4101 so that the clutch member 3220 can move toward the bottom of the slide groove 4101. When the output power of the driving motor 31 is less than or equal to a preset threshold value, the clutch member 3220 moves axially relative to the slide groove 4101, so that sliding occurs between the clutch member 3220 and the transmission gear 3212.

[0096] In some embodiments, the inner wall of the slide groove 4101 and the outer wall of one end of the clutch 3220 facing the slide groove 4101 are respectively polygonal structures. Optionally, the inner wall of the slide groove 4101 and the outer wall of one end of the clutch 3220 facing the slide groove 4101 are respectively regular hexagonal structures. On the one hand, along the axial direction of the clutch 3220, the clutch 3220 can move axially along the slide groove 4101, so that the clutch 3220 and the transmission gear 3212 can engage with or slip with each other. On the other hand, along the circumferential direction of the clutch 3220, the outer wall of one end of the clutch 3220 facing the slide groove 4101 is engaged with the inner wall of the slide groove 4101, so that the clutch 3220 and the connecting member 410 are circumferentially fixed, thereby limiting the relative rotation of the connecting member 410 and the clutch 3220 along the circumferential direction, thereby realizing the transmission connection between the clutch 3220 and the connecting member 410.

[0097] In some embodiments, the second transmission component 322 also includes a limit member 3225, which is installed on the fixed shaft 3211 and is located between the elastic member 3224 and the second transmission component 41. A receiving groove 3222 is opened at one end of the clutch member 3220 facing the second transmission component 41, and a mounting column 3223 is arranged in the receiving groove 3222. The fixed shaft 3211 is passed through the mounting column 3223, and the elastic member 3224 is sleeved on the mounting column 3223. The limit member 3225 is at least partially received in the receiving groove 3222, and the two ends of the elastic member 3224 are respectively abutted against the bottom of the receiving groove 3222 and the limit member 3225.

[0098] A receiving groove 3222 is provided at one end of the clutch 3220 facing the connecting member 410, and the elastic member 3224 is located in the receiving groove 3222. A mounting column 3223 is protruding from the bottom of the receiving groove 3222. There is a gap between the outer wall of the mounting column 3223 and the side wall of the receiving groove 3222. The elastic member 3224 is sleeved on the mounting column 3223 and limited between the side wall of the receiving groove 3222 and the mounting column 3223, so that the elastic member 3224 will not undergo radial deformation during the rotation of the clutch 3220, ensuring that the elastic member 3224 will only undergo telescopic deformation along the axial direction of the fixed shaft 3211.

[0099] The stopper 3225 is installed at one end of the fixed shaft 3211 close to the connecting member 410 and abuts against the bottom of the slide groove 4101. The stopper 3225 has a supporting and limiting function for the fixed shaft 3211. Optionally, the stopper 3225 is fixedly connected to the connecting member 410, so that the stopper 3225 can better fix and limit the fixed shaft 3211 to ensure the assembly stability of the fixed shaft 3211. The end of the stopper 3225 facing the clutch 3220 is received in the receiving groove 3222, and the two ends of the elastic member 3224 abut against the bottom of the receiving groove 3222 and the stopper 3225, so that the elastic member 3224 is always located in the receiving groove 3222, further ensuring that the elastic member 3224 will not be radially deformed during the rotation of the clutch 3220, thereby avoiding damage to the elastic member 3224.

[0100] In some embodiments, the cleaning assembly 100 further includes a housing 50 (see Figure 4 ), the housing 50 is installed on the bracket 10, the first transmission component 321 is installed in the housing 50, a mounting hole 51 is opened on the housing 50, and the clutch component 3220 is slidably installed in the mounting hole 51.

[0101] The housing 50 is mounted on one end of the bracket 10. Optionally, the housing 50 can be mounted on the housing 50 by means of snap connection, thread connection, etc. The housing 50 forms a receiving space. The housing 50 is provided with a mounting hole 51, which is in communication with the receiving space. The fixed shaft 3211 is passed through the mounting hole 51, and one end of the fixed shaft 3211 is fixedly mounted in the receiving space, and the other end is fixedly mounted on the limiter 3225. The gear set 3210 and the transmission gear 3212 are respectively mounted in the receiving space. The connecting member 410 is located outside the housing 50. The clutch member 3220 is passed through the mounting hole 51 and is transmission-connected with the connecting member 410 outside the housing 50. The inner wall of the mounting hole 51 has a radial limiting effect on the clutch member 3220, thereby ensuring the transmission position accuracy of the clutch member 3220.

[0102] In some embodiments, a waterproof sleeve 52 is further provided between the inner wall of the mounting hole 51 and the outer wall of the clutch 3220. Optionally, the waterproof sleeve 52 is made of silicone material. By providing the waterproof sleeve 52, on the one hand, it prevents external water and dust from entering the inner side of the shell 50 through the mounting hole 51, and on the other hand, it improves the assembly accuracy between the mounting hole 51 and the clutch 3220.

[0103] In some embodiments, the lifting assembly 42 includes a rotating shaft 420 and a pull rope 421. The second transmission assembly 41 is connected to the rotating shaft 420 in a one-way transmission manner, and the rotating shaft 420 is rotatably installed on the bracket 10. One end of the pull rope 421 is connected to the rotating shaft 420, and the other end is connected to the robot body 200.

[0104] The lifting assembly 42 includes a rotating shaft 420 and a pull rope 421. The rotating shaft 420 is rotatably installed on the bracket 10 and is located directly above the bracket 10. The rotating shaft 420 is parallel to the fixed shaft 3211. Optionally, both ends of the rotating shaft 420 are respectively rotatably installed on the bracket 10, and the axis of the rotating shaft 420 is colinear with the axis of the fixed shaft 3211.

[0105] One end of the rotating shaft 420 facing the connecting member 410 is mounted on the inner ring of the one-way bearing 411. Optionally, the inner ring of the one-way bearing 411 is interference fit with the rotating shaft 420, so that the inner ring of the one-way bearing 411 drives the rotating shaft 420 to rotate. In addition, the inner ring of the one-way bearing 411 can also be fixedly matched with the rotating shaft 420 by bonding or the like.

[0106] One end of the pull rope 421 is connected to the rotating shaft 420, and the other end is connected to the robot body 200. When the drive motor 31 is in the second working state, the drive motor 31 transmits power to the first transmission component 32 and the connecting member 410 in turn. The connecting member 410 drives the outer ring of the one-way bearing 411 to rotate, and the inner ring of the one-way bearing 411 rotates with its outer ring, and drives the rotating shaft 420 to rotate through the inner ring of the one-way bearing 411. The pull rope 421 is gradually wound around the rotating shaft 420, so that the rotating shaft 420 is lifted upward, and drives the bracket 10 and the cleaning member 20 to be lifted upward.

[0107] Optionally, there are two pull ropes 421, each pull rope 421 is connected to the rotating shaft 420 and the robot body 200 respectively, and the two pull ropes 421 are respectively located at both ends of the rotating shaft 420. During the lifting process of the cleaning member 20, the cleaning member 20 is synchronously pulled up by the two pull ropes 421, and the force is balanced, and the lifting stability is better.

[0108] In some embodiments, the second transmission assembly 41 further includes a stop ring 412 (see Fig. 9 ), the limiting ring 412 is sleeved on the rotating shaft 420 and abuts against the end surface of the bearing hole 4100, and the limiting ring 412 plays an axial limiting role on the one-way bearing 411 to prevent the one-way bearing 411 from coming out of the bearing hole 4100. Optionally, a slot is provided on the rotating shaft 420, and the limiting ring 412 is installed in the slot.

[0109] See also Fig.13 and Fig.14 , Fig.13 is a schematic diagram of the three-dimensional structure of the rotating shaft. Fig.14 A schematic diagram of the three-dimensional structure of the bracket.

[0110] In some embodiments, a limiting groove 4200 is opened on one side of the rotating shaft 420 facing the bracket 10, and a rope threading hole 4201 is opened at the bottom of the limiting groove 4200. One end of the pull rope 421 is fixedly installed in the limiting groove 4200, and the other end of the pull rope 421 passes through the rope threading hole 4201 and is connected to the robot body 200.

[0111] One end of the pull rope 421 is installed in the limit groove 4200 and is adapted to the size of the limit groove. The other end of the pull rope 421 is fixedly connected to the robot body 200. During the lifting process of the cleaning member 20, the pull rope 421 is wound along the circumferential direction of the fixed axis 3211. The friction between the pull rope 421 and the fixed axis 3211 is small, which prevents the pull rope 421 from being worn and broken, and reduces the displacement of the pull rope 421 along the direction of the fixed axis 3211, ensuring that the cleaning member 20 will not tilt during the lifting process.

[0112] In some embodiments, a bearing seat 11 is disposed on the bracket 10 , a bearing 12 is disposed in the bearing seat 11 , and the rotating shaft 420 is rotatably installed in the bearing 12 .

[0113] Specifically, there are two bearing seats 11, and the two bearing seats 11 are respectively arranged above the bracket 10. Optionally, the bearing seat 11 and the bracket 10 are an integrally formed structure, and bearings 12 are respectively installed in the two bearing seats 11. The two ends of the rotating shaft 420 are respectively rotatably installed in the corresponding bearings 12 to improve the smoothness of the rotation of the first rotating shaft and avoid the rotating shaft 420 from being stuck during the lifting process.

[0114] In some embodiments, a guide column 13 is disposed on the bracket 10 , a guide groove is opened on the robot body 200 , and the guide column 13 is slidably installed in the guide groove on the robot body 200 .

[0115] Optionally, there are multiple guide posts 13 and guide grooves, respectively, and the multiple guide posts 13 correspond to the positions of the multiple guide grooves. The sliding cooperation between the guide posts 13 and the guide grooves enables the bracket 10 and the cleaning member 20 to move only in the vertical direction during the lifting process, and thus the bracket 10 and the cleaning member 20 can always remain horizontal during the lifting process, further avoiding the cleaning member 20 from tilting during the lifting process.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning component, characterized in that: include: Bracket; A cleaning member installed on the inner side of the bracket; A driving mechanism is mounted on the bracket, the driving mechanism comprises a driving motor and a first transmission assembly, the driving motor is in driving connection with the first transmission assembly, and the first transmission assembly is in driving connection with the cleaning member, so that the cleaning member rotates; A lifting mechanism is installed on the bracket, and the lifting mechanism includes a second transmission assembly and a lifting assembly. The first transmission assembly is transmission-connected to the second transmission assembly, and the second transmission assembly is unidirectionally transmission-connected to the lifting assembly. The second transmission assembly transmits power to the lifting assembly so that the lifting assembly drives the cleaning member to lift.

2. The cleaning assembly according to claim 1, characterized in that: The second transmission assembly includes a connecting piece and a one-way bearing. One end of the connecting piece is transmission-connected to the first transmission assembly. The other end of the connecting piece is provided with a bearing hole. The one-way bearing is installed in the bearing hole. The one-way bearing is transmission-connected to the lifting assembly.

3. The cleaning assembly according to claim 1, characterized in that: The first transmission assembly includes a first transmission component and a second transmission component, and the first transmission component is respectively connected to the driving motor and the cleaning component in a transmission manner; When the output power of the drive motor is less than or equal to a preset threshold, the first transmission component is meshed with the second transmission component, and when the output power of the drive motor is greater than the preset threshold, the first transmission component and the second transmission component slide relative to each other.

4. The cleaning assembly according to claim 3, characterized in that: The first transmission component includes a gear set, a fixed shaft and a transmission gear, the drive motor is in transmission connection with the gear set, the gear set is in transmission connection with the cleaning member and the transmission gear respectively, and the transmission gear is mounted on the fixed shaft; The second transmission component includes a clutch and an elastic member, wherein the clutch is mounted on the fixed shaft and is in transmission connection with the second transmission assembly, and the elastic member is arranged between the clutch and the second transmission assembly; When the output power of the drive motor is less than or equal to a preset threshold, the transmission gear is meshed with the clutch member, and when the output power of the drive motor is greater than the preset threshold, the elastic member is compressed, the clutch member moves axially in a direction away from the transmission gear, and the transmission gear and the clutch member slide relative to each other.

5. The cleaning assembly according to claim 3, characterized in that: It also includes a light shielding plate. After the lifting assembly drives the cleaning member and the bracket to be lifted to a preset position, the light shielding plate can prevent light from entering the photoelectric sensor on the robot body, so that the photoelectric sensor generates a control signal and controls the drive motor to stop rotating.

6. The cleaning assembly according to claim 5, characterized in that: After the lifting assembly drives the cleaning member and the bracket to be lifted to a preset position, the output power of the driving motor is equal to the preset threshold.

7. The cleaning assembly according to claim 4, characterized in that: The transmission gear is provided with a first tooth at one end facing the clutch member, and the clutch member is provided with a second tooth at one end facing the transmission gear. The first tooth and the second tooth can mesh with each other or slide relatively.

8. The cleaning assembly according to claim 4, characterized in that: A slide groove is formed at one end of the second transmission component facing the clutch member, and the clutch member is slidably installed in the slide groove.

9. The cleaning assembly according to claim 8, characterized in that: The inner wall of the slide slot and the outer wall of one end of the clutch member facing the slide slot are respectively polygonal structures.

10. The cleaning assembly according to claim 4, characterized in that: The second transmission component further includes a limiting member, which is mounted on the fixed shaft and is located between the elastic member and the second transmission assembly; A receiving groove is formed at one end of the clutch member facing the second transmission component, a mounting column is arranged in the receiving groove, the fixed shaft is passed through the mounting column, the elastic member is sleeved on the mounting column, the limiting member is at least partially received in the receiving groove, and the two ends of the elastic member are respectively abutted against the bottom of the receiving groove and the limiting member.

11. The cleaning assembly according to claim 4, characterized in that: It also includes a shell, the shell is installed on the bracket, and the first transmission component is installed in the shell; The shell is provided with a mounting hole, and the clutch member is slidably mounted in the mounting hole.

12. The cleaning assembly according to claim 1, characterized in that The lifting assembly includes a rotating shaft and a pull rope, the second transmission assembly is connected to the rotating shaft in a one-way transmission manner, and the rotating shaft is rotatably mounted on the bracket, one end of the pull rope is connected to the rotating shaft, and the other end is connected to the robot body.

13. The cleaning assembly according to claim 12, characterized in that A limiting groove is provided on one side of the rotating shaft facing the bracket, a rope threading hole is provided at the bottom of the limiting groove, one end of the pull rope is fixedly installed in the limiting groove, and the other end of the pull rope passes through the rope threading hole and is connected to the robot body.

14. The cleaning assembly according to claim 12, characterized in that A bearing seat is arranged on the bracket, a bearing is arranged in the bearing seat, and the rotating shaft is rotatably installed in the bearing.

15. The cleaning assembly according to claim 1, characterized in that The bracket is provided with a guide column, and the guide column can be slidably installed in a guide groove on the robot body.

16. A cleaning robot, characterized in that: comprising a cleaning assembly as described in any one of claims 1 to 15; and The robot body is provided with the cleaning component mounted on the robot body.

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