Roller assembly and self-moving cleaning equipment
By designing a detachable roller assembly, including a frame, a roller, a bracket and a cover, the problem of the roller contaminating the carpet is solved, convenient maintenance and cleaning are achieved, and the use effect of the self-moving cleaning equipment is improved.
Patent Information
- Application Number
- CN202422484064.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The roller of the existing self-propelled cleaning equipment is likely to contaminate the carpet after wet cleaning, and the protective component structure is difficult to disassemble, which is not conducive to maintenance and cleaning.
A roller assembly is designed, including a frame, a roller, a first bracket, a second bracket and a cover body. A detachable connection structure and bracket support are used to prevent the roller from contaminating the carpet and facilitate maintenance and cleaning.
It effectively prevents the roller from contaminating the carpet during movement, and facilitates the disassembly and maintenance of the roller assembly, thereby improving the cleaning efficiency and maintenance convenience of the equipment.
Smart Images
Figure CN223392412U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the structure of a self-moving cleaning device. Background Art
[0002] Autonomous mobile devices are intelligent mobile devices that autonomously perform pre-set tasks and are capable of autonomously moving on a surface based on the sensing results of their sensors. Currently, autonomous mobile devices generally include, but are not limited to, self-propelled cleaning devices (e.g., intelligent sweepers, intelligent floor scrubbers, window cleaning robots), companion mobile robots (e.g., intelligent electronic pets, nanny robots), service mobile robots (e.g., reception robots for hotels, inns, and meeting places), intelligent industrial inspection devices (e.g., power inspection robots, intelligent forklifts), and security robots (e.g., intelligent guard robots for home or commercial use).
[0003] As a typical example of an autonomous moving device, the self-moving cleaning device is not only capable of autonomously moving on a traveling surface such as a surface to be cleaned, but is also capable of performing dry cleaning operations and / or wet cleaning operations on the traveling surface as needed, and is therefore widely used in homes and offices. In order to perform wet cleaning operations, the self-moving cleaning device needs to be provided with a wet cleaning assembly including wet cleaning parts (such as rollers, etc.). However, in scenarios such as homes and offices where the self-moving cleaning device is used, there are carpets, and the wet cleaning parts such as rollers are attached with cleaning liquid (such as water) and dirt after performing wet cleaning operations, so the wet cleaning parts will contaminate the carpet after contacting the carpet. In order to avoid contamination of the carpet, the self-moving cleaning device can be provided with protective components, but the structure of the existing protective components is not easy to disassemble, which is not conducive to the maintenance and cleaning of the roller assembly. Utility Model Content
[0004] In view of the above-mentioned problems of the prior art, one object of the present disclosure is to provide a roller assembly that can prevent the roller from contaminating the carpet when the self-propelled cleaning device moves over the carpet, and the structure used to achieve the above-mentioned function is easy to disassemble, thereby facilitating the maintenance and cleaning of the roller assembly. Another object of the present disclosure is to provide a self-propelled cleaning device including the above-mentioned roller assembly.
[0005] In order to achieve the above objectives, the present disclosure adopts the following technical solutions.
[0006] The present disclosure provides a roller assembly for a self-moving cleaning device, the roller assembly comprising:
[0007] A frame for mounting on a main body of the self-moving cleaning device, the frame comprising a frame body and side support frames, the side support frames comprising side plates and shaft portions fixed to each other, the side plates being detachably assembled with the frame body;
[0008] a roller mounted on the frame body, the roller being rotatable relative to the frame body about its central axis;
[0009] a first bracket, located at one axial end portion of the frame body and rotatably connected to the frame body, such that the first bracket can rotate relative to the frame and the drum;
[0010] a second bracket located at the other axial end of the frame body, the shaft portion passing through the second bracket and inserted into the drum, so that the second bracket can rotate relative to the frame and the drum; and
[0011] The cover body is located radially outside the drum, one end of the cover body is detachably assembled with the first bracket and the other end of the cover body is fixedly connected with the second bracket.
[0012] In an optional solution, the first bracket includes a first bracket body and a first elastic clamping assembly, the first bracket body is rotatably connected to the frame body, and the first elastic clamping assembly is provided on the first bracket body.
[0013] The cover body includes an arc-shaped cover and a first clip. The arc-shaped cover is located radially outside the drum. The first clip is fixed to one end of the arc-shaped cover and installed on the first bracket. The first clip is clipped and fixed to the first elastic clip assembly.
[0014] In another optional solution, the first elastic clip assembly includes two first clips and a first spring arranged between the two first clips, and the two ends of the first spring respectively abut against the two first clips, and the spring force of the first spring is utilized to enable the two first clips to be clipped into the corresponding first clip grooves of the first buckle.
[0015] In another optional solution, each of the first clamping members has a first operating portion, which protrudes from the first bracket body. By applying a force to the first operating portion to overcome the spring force of the first spring, the two first clamping members can be released from the first buckle.
[0016] In another optional solution, the second bracket includes a second bracket body and a bearing, the bearing is mounted on the second bracket body, the shaft passes through the bearing and is supported by the bearing, and the shaft is coaxially inserted into the drum.
[0017] In another optional solution, the frame further includes a second elastic snap-fit assembly, and the second elastic snap-fit assembly is provided on the frame body.
[0018] The side support frame further includes a second clip, which is fixed to the side plate and inserted into the frame body, and the second clip is clipped and fixed with the second elastic clip assembly.
[0019] In another optional solution, the second elastic clip assembly includes two second clips and second springs corresponding to the two second clips respectively, and the two ends of the second spring respectively abut against the corresponding second clip and the frame body, and the spring force of the second spring is used to enable the two second clips to be clipped into the corresponding second clip grooves of the second buckle.
[0020] In another optional solution, each second clamping member has a second operating portion, which protrudes from the frame body. By applying a force to the second operating portion to overcome the spring force of the second spring, the second clamping member can be released from the second buckle.
[0021] In another optional solution, the drum assembly further includes a motor and a gear transmission mechanism.
[0022] The motor is mounted on the frame.
[0023] The gear transmission mechanism includes an output gear and an intermediate gear that are meshed with each other. The output gear is connected to the motor in a transmission manner. The intermediate gear is rotatably connected to the frame. The first bracket is formed with gear teeth and is always meshed with the intermediate gear. The motor drives the cover body to rotate via the gear transmission mechanism and the first bracket.
[0024] The present disclosure also provides a self-moving cleaning device, comprising a main unit and a roller assembly as described in any one of the above technical solutions, wherein the roller assembly is installed on the main unit, and the central axis of the roller of the roller assembly extends along the left and right directions of the self-moving cleaning device.
[0025] By adopting the above technical solution, the present disclosure provides a roller assembly and a self-moving cleaning device including the roller assembly, which includes a frame, a roller, a first bracket, a second bracket and a cover body assembled together. The frame is used to be installed to the main body of the self-moving cleaning device, and the frame includes a frame body and a side support frame, the side support frame includes a side plate and a shaft portion fixed to each other, and the side plate is assembled with the frame body in a detachable manner. The roller is installed on the frame body, and the roller can rotate relative to the frame body around its central axis. The first bracket is located at one axial side end of the frame body and is rotatably connected to the frame body. The second bracket is located at the other axial side end of the frame body, and the shaft portion passes through the second bracket and is inserted into the roller. Thus, the first bracket and the second bracket can rotate relative to the frame and the roller. The cover body is located radially outside the roller, one end of the cover body is detachably assembled with the first bracket and the other end is fixedly connected to the second bracket.
[0026] In this way, the cover body can prevent the roller from contaminating the carpet when the self-mobile cleaning device moves over it. Furthermore, the two brackets can stably support the cover body during its rotation, thereby allowing the cover body to rotate smoothly and preventing the cover from tilting. In addition, the split structure of the frame is utilized, and the two brackets are detachably connected to the cover body and the frame respectively, so that the protective cover composed of the first bracket, the second bracket and the cover body can be assembled with the roller and the frame in a conveniently detachable structure, which facilitates maintenance and cleaning of the roller assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1A 1 is a front schematic diagram showing an assembly of a partial structure of a self-moving cleaning device according to an embodiment of the present disclosure, which includes a roller assembly according to the present disclosure.
[0028] Figure 1B and Figure 1C It shows Figure 1A Schematic side view of the assembly.
[0029] Figures 1D to 1F It shows Figure 1A Schematic diagram of the decomposition structure of the assembly in .
[0030] Figure 2A It shows Figure 1A Schematic diagram of the partial structure of the drum assembly in FIG, wherein the cover body and the first bracket are in an assembled state.
[0031] Figure 2B It shows Figure 2A Schematic side view of the structure in .
[0032] Figure 2C It shows Figure 1AA three-dimensional schematic diagram of the partial structure of the drum assembly, wherein the cover body and the first bracket are in a separated state.
[0033] Figure 2D It shows Figure 2C Schematic side view of the structure in .
[0034] Figure 2E It shows Figure 1A A three-dimensional schematic diagram of the partial structure of the roller, the first elastic clamping assembly and the cover body of the roller assembly.
[0035] Figure 2F It shows Figure 1A A three-dimensional schematic diagram of the partial structure of the first elastic clamping component and the cover body of the roller assembly.
[0036] Figure 3A It shows Figure 1A A side view schematic diagram of the partial structure of the drum assembly in which the second bracket and the frame are in an assembled state.
[0037] Figure 3B It shows Figure 1A A three-dimensional schematic diagram of the partial structure of the drum assembly, in which the second bracket, the frame body and the side support frame are in a disassembled state.
[0038] Figure 3C It shows Figure 3B A three-dimensional schematic diagram of the local structure in which the second elastic snap-fit assembly is shown in a perspective manner.
[0039] Figure 3D It shows Figure 1A A three-dimensional schematic diagram of the roller, second elastic clamping assembly, side support frame, cover body and second bracket of the roller assembly.
[0040] Figure 3E It shows Figure 1A A side view schematic diagram of the partial structure of the drum assembly in which the second elastic clamping assembly is in a clamping state.
[0041] Figure 3F It shows Figure 1A A side view schematic diagram of the partial structure of the drum assembly in which the second elastic clamping assembly is in a released clamping state.
[0042] Description of Reference Numerals
[0043] 1—frame; 11—frame body; 12—side support frame; 121—side plate; 122—shaft; 123—second clip; 123c—second clip groove; 13—second elastic clip assembly; 131—second clip member; 1311—second operating portion; 132—second spring;
[0044] 2—drum;
[0045] 3—first bracket; 31—first bracket body; 32—first elastic clamping assembly; 321—first clamping member; 3211—first operating portion; 322—first spring;
[0046] 4—second bracket; 41—second bracket body; 42—bearing;
[0047] 5—cover body; 51—arc-shaped cover; 52—first buckle; 52c—first snap-fit groove;
[0048] 6—motor;
[0049] 7—gear transmission mechanism; 71—output gear; 72—intermediate gear;
[0050] D1—left and right direction; D2—up and down direction; D3—front and back direction. DETAILED DESCRIPTION
[0051] The following describes embodiments of the present disclosure with reference to the accompanying drawings. For ease of understanding, the elements shown in the drawings may include elements whose sizes and scales are different from the actual sizes and scales.
[0052] In the present disclosure, unless otherwise specified, "front (front side)", "rear (rear side)", "left (left side)", "right (right side)", "up (upper side)", and "down (lower side)" are all relative to the normal operating state of the self-moving cleaning device according to the present disclosure. Specifically, the self-moving cleaning device has a positive direction of movement (i.e., positive direction) when in normal operating state. The so-called "normal operating state" refers to the moving state of the self-moving cleaning device when performing a task, which is distinguished from the non-normal operating state of the self-moving cleaning device such as retreating and swinging in the escape mode. "Front (front side)" and "rear (rear side)" refer to the front and rear sides of the self-moving cleaning device in the positive forward direction when the self-moving cleaning device according to the present disclosure is in a normal operating state on the traveling surface (e.g., the surface to be cleaned), "left (left side)" and "right (right side)" refer to the left and right sides when viewed toward the front side in the positive forward direction, and "up (upper side)" and "down (lower side)" refer to the upper and lower sides in the height direction perpendicular to the traveling surface when the self-moving cleaning device according to the present disclosure is in a normal operating state on the traveling surface.
[0053] In the present disclosure, the self-moving cleaning device can move autonomously according to the control scheme preset in its processing unit. The traveling surface on which the self-moving cleaning device moves autonomously can be a plane or a curved surface with a large radius of curvature, typically the floor of each room in a building. The processing unit in the present disclosure is a general term, and there is no restriction on the type, quantity and form of the processing unit. Specifically, the processing unit can be one or more of MCU, DSP, FPGA, GPU, or other types of hardware chips, processors or software algorithms with data processing and computing capabilities. Furthermore, the processing unit can be a unified and unique processor of the self-moving cleaning device, or it can be a collection of multiple processing units. The connection mode, function and computing power distribution of the multiple processing units can be adjusted as needed. For example, in an optional solution, a first processing unit and a second processing unit can be included. In this case, the first processing unit and the second processing unit as a whole realize the various functions of the above-mentioned processing units. In addition, the processing unit of the self-moving cleaning device of the present disclosure can receive parameters from the sensing component and can perform relevant control on the self-moving cleaning device through a preset program stored in the storage unit. In the present disclosure, the data, information, and programs required by the processing unit during processing can be stored in a storage unit and retrieved from the storage unit as needed. The processing unit can then store the processed data, information, etc. again in the storage unit. The storage unit can be RAM, ROM, etc., or a device and / or equipment with storage capabilities such as a cloud / server / mobile terminal connected via a wired / wireless network.
[0054] The drum assembly according to the embodiment of the present disclosure is described below with reference to the accompanying drawings.
[0055] In this embodiment, if Figures 1A to 1C As shown, the drum assembly includes a frame 1, a drum 2, a first bracket 3, a second bracket 4, a cover 5, a motor 6 and a gear transmission mechanism 7 that are assembled together.
[0056] In this embodiment, if Figures 1D to 1F As shown, the frame 1 includes a frame body 11 and a side support frame 12 that are assembled in a detachable manner. The frame body 11 is used for mounting other components and supporting other components. The frame body 11 can have various shapes and structures as needed, and is not limited to the shapes and structures shown in the figure. In addition, the side support frame 12 includes a side plate 121 and a shaft portion 122 fixed to each other. The side plate 121 is assembled with the frame body 11 in a detachable manner. When the side plate 121 is assembled to the frame body 11, the shaft portion 122 is inserted into the drum 2 through the bearing 42 of the second bracket 4 in a coaxial manner with the drum 2, so that the second bracket 4 can rotate relative to the frame 1 and the drum 2 around the central axis of the drum 2 via the shaft portion 122.
[0057] In this embodiment, if Figures 1A to 1C As shown, the drum 2 is cylindrical and can rotate about its own central axis relative to the frame 1 (frame body 11). When the drum assembly is installed in the self-propelled cleaning device, the central axis of the drum 2 extends along the left-right direction D1 of the main body of the self-propelled cleaning device. During operation, the spray device of the self-propelled cleaning device sprays a cleaning liquid, such as water, onto the traveling surface or the drum 2. The drum 2 contacts the traveling surface and rotates, thereby performing a wet cleaning of the traveling surface.
[0058] In this embodiment, if Figures 1A to 1C As shown, the first bracket 3, the second bracket 4, and the cover body 5 are assembled together to form the protective cover. The first bracket 3 and the second bracket 4 are respectively fixedly connected to the ends of the cover body 5. The first bracket 3 and the second bracket 4 are located on either side of the drum 2 in the axial direction. The first bracket 3 is rotatably connected to the frame 1, and the second bracket 4 is mounted to the frame 1 via the shaft 122, allowing the protective cover to rotate around the central axis of the drum 2 relative to the frame 1 and the drum 2. The two brackets 3 and 4 provide stable support for the cover body 5 during rotation, thereby preventing the protective cover from tilting.
[0059] like Figures 2A to 2FAs shown, the first bracket 3 includes a first bracket body 31 and a first elastic clamping assembly 32. The first bracket body 31 is rotatably connected to the frame body 11. The first elastic clamping assembly 32 is disposed on the first bracket body 31 and is supported and restrained by the first bracket body 31. Specifically, the first elastic clamping assembly 32 includes two first clamping members 321 and a first spring 322 disposed between the two first clamping members 321. The two first clamping members 321 are disposed on the first bracket body 31 so that they can approach and move away from each other. The first spring 322 is a cylindrical coil spring, with its two ends respectively abutting against the two first clamping members 321. Under the spring force of the first spring 322, the two first clamping members 321 are moved away from each other. In addition, each first clamping member 321 is formed with a first operating portion 3211 protruding relative to the first bracket body 31. By applying a force to the first operating portion 3211 to overcome the spring force of the first spring 322, the two first clamping members 321 can be moved toward each other. Furthermore, the cover body 5 includes a curved cover 51 and a first clip 52, which are fixed to each other. The curved cover 51 is located radially outward from the drum 2. The first clip 52 is fixed to one end of the curved cover 51 and mounted on the first bracket 3. The first clip 52 is formed with a first, hole-shaped, engaging groove 52c. When the first clip 52 is inserted into the first bracket body 31, the spring force of the first spring 322 enables the two first clips 321 to be inserted into the first engaging groove 52c of the first clip 52 and maintain this position. The first clips 321 are respectively engaged with the corresponding first engaging grooves 52c of the first clip 52, thereby securing the first clip 52 to the first elastic engaging assembly 32. Thus, the cooperation between the first elastic engaging assembly 32 and the first clip 52 enables a secure and reliable detachable connection between the cover body 5 and the first bracket 3. The spring force of the first spring 322 maintains the two first clips 321 in a position securely engaged with the first clip 52. Furthermore, by applying a force to the first operating portion 3211 to overcome the spring force of the first spring 322, the two first engaging members 321 can be brought closer to each other to release the engagement with the first buckle 52. The first elastic engaging assembly 32 includes a structure that facilitates operation, allowing the first engaging member 321 to switch between an engaged state with the first buckle 52 and a contact state in which the engagement with the first buckle 52 is released.
[0060] like Figures 3A to 3FAs shown, the second bracket 4 includes a second bracket body 41 and a bearing 42. The bearing 42 is mounted on the second bracket body 41. The shaft portion 122 of the side support frame 12 passes through and is supported by the bearing 42. The bearing 42 of the second bracket 4 can cooperate with the shaft portion 122 of the inserted roller 2, thereby providing stable support for the entire structure including the cover body 5 and the second bracket 4. Furthermore, the frame 1 also includes a second elastic clamping assembly 13, which is disposed on the frame body 11 and supported and retained by the frame body 11. Specifically, the second elastic clamping assembly 13 includes two second clamping members 131 and second springs 132 corresponding to the two second clamping members 131. Each second spring 132 is a cylindrical coil spring, with its two ends respectively abutting against the corresponding second clamping member 131 and the frame body 11. Under the spring force of the second springs 132, the two second clamping members 131 are kept away from each other. Each second clip 131 is formed with a second operating portion 1311 protruding from the frame body 11. By applying a force to the second operating portion 1311 to overcome the spring force of the second spring 132, the two second clips 131 can be brought into proximity with each other. Furthermore, the side support frame 12 also includes a second clip 123, which is fixed to the side plate 121 and inserted into the frame body 11. The second clip 123 is formed with a notched second snap-in groove 123c. The spring force of the second spring 132 allows the two second clips 131 to snap into and retain their corresponding second snap-in groove 123c, securing the second clip 123 to the second elastic snap assembly 13. Thus, the second clip 123 and the second elastic snap assembly 13 cooperate to achieve a secure and removable connection between the cover 5 and the second bracket 4. The spring force of the second spring 132 maintains the two second clips 131 in a securely engaged position with the second clip 123. Furthermore, by applying a force to the second operating portion 1311 to overcome the spring force of the second spring 132, the two second engaging members 131 can be brought closer to each other, thereby releasing the engagement with the second buckle 123. The second elastic engaging assembly 13 includes a structure that facilitates operation, allowing the second engaging member 131 to switch between an engaged state with the second buckle 123 and a contact state in which the engagement with the second buckle 123 is released.
[0061] In this embodiment, if Figures 1D to 1FAs shown, in order to fully protect the bottom of the drum 2, the arcuate cover 51 of the cover body 5 is formed into an arc structure and is located radially outside the drum 2. That is to say, the arcuate cover 51 is always separated from the drum 2 by a certain distance to avoid interference with the drum 2 during the rotation of the cover body 5. Furthermore, the cover body 5 extends along the axial direction of the drum 2 (from the left and right direction D1 of the mobile cleaning device) across the entire drum 2 while extending along the circumferential direction of the drum 2. Specifically, the arcuate cover 51 extends circumferentially across a central angle of 80 to 120 degrees. This is because if the range over which the arcuate cover 51 extends circumferentially is too large (greater than a central angle of 120 degrees), the arcuate cover 51 needs to rotate a very large range to expose the bottom of the drum 2. This will cause the mechanism for rotating the arcuate cover 51 to occupy too much space. If the arc-shaped cover 51 extends over a small area in the circumferential direction (less than an 80-degree central angle), the arc-shaped cover 51 cannot fully cover the bottom of the drum 2, resulting in the possibility that the drum 2 may come into contact with the surface to be cleaned even when the arc-shaped cover 51 is in the protective position. Thus, the arc-shaped cover 51 has a certain size in the axial and circumferential directions of the drum 2, thereby being able to cover the bottom of the drum 2.
[0062] In this embodiment, if Figures 1D to 1F As shown, the motor 6 serves as the power source for driving the protective cover to rotate. The motor 6 is fixedly mounted on the frame body 11, and the motor shaft of the motor 6 can be directly connected to a reducer, so that the torque from the motor 6 can be directly transmitted to the reducer and amplified by the reducer. The reducer can be mounted on the frame 1, and the motor 6 is connected to the protective cover via the reducer and a gear transmission mechanism 7. The reducer can be a gear reducer and can include a planetary gear or multiple pairs of meshing gear pairs, thereby amplifying the torque from the motor 6. In addition, the reducer has a reduction ratio that allows the protective cover to be locked when the motor 6 stops. When the reduction ratio is large enough, the reducer can provide sufficient resistance to lock the protective cover. In this way, the reducer can not only smoothly switch the cover body 5 between different positions, but also use a reducer with a large reduction ratio to achieve the function of locking the cover body 5, so that the cover body 5 can be locked in a desired position. Specifically, during the rotation process, the protective cover can be positioned to a protective position where the cover body 5 covers the bottom of the drum 2, and a non-protective position where the bottom of the drum 2 is exposed.
[0063] In this embodiment, if Figures 2A to 2DAs shown, the gear transmission mechanism 7 includes an output gear 71 and an intermediate gear 72. The output gear 71 is mounted on the output shaft of the reducer and is directly connected to the reducer for receiving torque from the reducer. The intermediate gear 72 is mounted on the frame body 11 and is rotationally connected to the frame body 11. The intermediate gear 72 is always engaged with the output gear 71. The first bracket 3 is formed with gear teeth that are always engaged with the intermediate gear 72 of the gear mechanism. The motor 6 drives the cover body 5 to rotate relative to the drum 2 via the gear transmission mechanism 7 and the first bracket 3. By utilizing other gears in addition to the reducer, the reduction ratio can be further changed as needed, and it is conducive to flexible adjustment of the structural layout of the drum assembly.
[0064] By adopting the above-mentioned scheme, the cover body 5 can be used to prevent the roller 2 of the self-mobile cleaning device from causing contamination to the traveling surface (especially the carpet) when the self-mobile cleaning device moves over the traveling surface such as the ground or carpet. Specifically, when the self-mobile cleaning device performs wet cleaning, the roller 2 will be wetted by a cleaning liquid such as water, and then the traveling surface such as the ground will be wet cleaned. After the above-mentioned wet cleaning, the roller 2 will be attached with dirty cleaning liquid (sewage). At this time, if the self-mobile cleaning device continues to move (for example, the self-mobile cleaning device returns to the base station or navigates to the next location to continue working), the dirty cleaning liquid will drip onto the traveling surface (such as the ground or carpet). In particular, the carpet is easy to come into contact with the contaminated roller 2 or the wetted roller 2 due to the presence of a lot of fluff on it, thereby leaving stains or watermarks on the carpet. Therefore, in the disclosed scheme, a cover body 5 is provided to cover the roller 2 to overcome this problem. Moreover, it is understandable that the roller 2 can also be raised to a certain height relative to the main body of the self-propelled cleaning device to prevent the roller 2 from contacting the ground or carpet, thereby preventing the ground or carpet from being contaminated. The two brackets 3 and 4 are further used to stably support the cover body 5 during the rotation of the cover body 5, so that the cover body 5 can rotate smoothly and prevent the protective cover from tilting. The first bracket 3 is rotatably connected to the frame body 11. The motor 6 can drive the protective cover to rotate via the first bracket 3, and the first bracket 3 and the first end of the cover body 5 are assembled together in a removable manner. In addition, the second bracket 4 and the second end of the cover body 5 are always fixed to each other, and the second bracket 4 is provided with a bearing 42. As described above, the shaft 122 of the side support frame 12 of the frame 1 passes through the bearing 42 and is inserted into the roller 2, so that the second bracket 4 is supported by the bearing 42. Thus, when the power source drives the first bracket 3 to rotate, the first bracket 3 can drive the entire protective cover to rotate. During the rotation of the protective cover, the second bracket 4 plays the role of following and stably supporting the cover body 5. Moreover, by utilizing the detachable connection structure between the side support frame 12 and the frame body 11 and the detachable connection structure between the cover body 5 and the first bracket 3, the protective cover is assembled with the drum 2 and the frame 1 in a conveniently detachable structure, thereby facilitating the maintenance and cleaning of the drum assembly.
[0065] The following describes a self-moving cleaning device according to the present disclosure, which includes a main body and the above-mentioned roller assembly. The roller assembly is installed on the main body and includes a roller 2 as a wet cleaning member.
[0066] In the self-moving cleaning device according to the present disclosure, the main body may include a housing that is generally circular in a top view. The shape of the housing is not limited thereto. In other optional schemes, the housing may also have other shapes, such as oval, D-shaped or square. When the autonomous mobile device according to the embodiment of the present disclosure is in normal operating state, the bottom surface of the housing is opposite to the traveling surface (e.g., the surface to be cleaned), and the bottom surface of the housing is parallel to the traveling surface. Here, "parallel" not only includes the situation where the bottom surface of the housing and the traveling surface have a geometric parallel relationship, but also includes the situation where the two are roughly parallel. The above-mentioned "roughly" means that within the reasonable error range recognized by those skilled in the art, it can be determined that the parallel relationship between the two is established. In addition, other components of the autonomous mobile device can be arranged in the housing. In order to support and protect other components, most of the structures of the autonomous mobile device are installed inside or on the surface of the housing, or have a connection relationship with the housing. The autonomous mobile device can also be provided with a processing unit and a sensing component in the housing. The processing unit can obtain environmental parameters through the sensing component. Based on the obtained environmental parameters, the processing unit can control the wheel component to drive the entire autonomous mobile device to move autonomously on the traveling surface, and in this process, the traveling surface can be cleaned by the wet cleaning component.
[0067] In addition, the self-moving cleaning device according to the present disclosure may further include a lifting mechanism and a telescopic mechanism. The roller assembly can be connected to the main unit via a lifting mechanism, so as to enable the roller assembly to be lifted and lowered relative to the main unit in the up and down direction D2. Thus, when the roller assembly is in a state of being raised relative to the main unit, not only can the obstacle-crossing capability of the self-moving cleaning device be improved, but the roller assembly can also be spaced a large distance from the traveling surface, and the roller 2 of the roller assembly will not cause pollution to the traveling surface. The roller assembly can also be connected to the main unit via a telescopic mechanism, so as to enable the roller assembly to be telescopic relative to the main unit in the left and right direction D1. Thus, when the roller assembly is in a state of being extended relative to the main unit, the roller assembly can clean the interface (corner) between the wall and the traveling surface.
[0068] It should be understood that the above embodiments are merely exemplary and are not intended to limit the present disclosure. Those skilled in the art may, under the guidance of the present disclosure, make various modifications and alterations to the above embodiments without departing from the scope of the present disclosure. The following supplementary explanations are provided for the technical solutions of the present disclosure.
[0069] i. It is understood that the technical solutions of the present disclosure are not only applicable to the self-propelled cleaning devices described in the above embodiments, but can also be applied to autonomous mobile devices that perform similar functions as needed. Such autonomous mobile devices may include companion mobile robots (e.g., smart electronic pets, nanny robots), service mobile robots (e.g., reception robots for hotels, inns, and meeting places), industrial inspection intelligent equipment (e.g., power inspection robots, smart forklifts, etc.), security robots (e.g., household or commercial intelligent security robots), and other two-dimensional planar mobile robots with wheels or tracks as drive units. Of course, the solutions of the present disclosure can also be applied to other fields, which will not be exhaustively described.
[0070] ii. In the above specific embodiments, it is described that the autonomous mobile device is a self-mobile cleaning device and includes a wet cleaning component, and the wet cleaning component includes a roller 2 as a wet cleaning member, but the present disclosure is not limited to this. The self-mobile cleaning device may also include a dry cleaning component provided on the main unit and may include, for example, dry cleaning members such as a main brush, as well as side brushes (side brushes) and a suction device. In the front-to-back direction D3, the dry cleaning member may be located in front of the wet cleaning member. Thus, when the autonomous mobile device is traveling on the traveling surface, the surface to be cleaned may be cleaned by the dry cleaning component and / or the wet cleaning component. In different working modes, the cleaning operations performed by the autonomous mobile device include, but are not limited to, one or more of operations such as sweeping, mopping, and vacuuming.
[0071] Furthermore, in order to achieve autonomous movement of the autonomous mobile device, the self-moving cleaning device according to the present disclosure includes a wheel assembly. The wheel assembly can be mounted on the main unit MB and protrude relative to the bottom surface of the main unit MB, and is used to drive the entire autonomous mobile device to move on the travel surface under the control of the processing unit. By rotating the wheels (driving wheels) of the two wheel assemblies at the same speed and in the same direction (for example, rotating clockwise or counterclockwise at the same time), the autonomous mobile device can be driven to move linearly along the forward direction; by rotating the driving wheels of the two wheel assemblies at different speeds and / or in different directions (for example, one driving wheel rotates clockwise and the other driving wheel rotates counterclockwise), the autonomous mobile device can be driven to turn in a direction different from the forward direction. The autonomous mobile device may also include a universal wheel provided on the main unit MB, so that no matter how the driving wheel rolls on the travel surface, the universal wheel can support the entire autonomous mobile device.
Claims
1. A roller assembly for a self-propelled cleaning device, characterized in that: The drum assembly comprises: A frame for mounting on a main body of the self-moving cleaning device, the frame comprising a frame body and side support frames, the side support frames comprising side plates and shaft portions fixed to each other, the side plates being detachably assembled with the frame body; a roller mounted on the frame body, the roller being rotatable relative to the frame body about its central axis; a first bracket, located at one axial end portion of the frame body and rotatably connected to the frame body, such that the first bracket can rotate relative to the frame and the drum; a second bracket located at the other axial end of the frame body, the shaft portion passing through the second bracket and inserted into the drum, so that the second bracket can rotate relative to the frame and the drum; and The cover body is located radially outside the drum, one end of the cover body is detachably assembled with the first bracket and the other end of the cover body is fixedly connected with the second bracket.
2. The drum assembly according to claim 1, characterized in that: The first bracket includes a first bracket body and a first elastic clamping assembly. The first bracket body is rotatably connected to the frame body. The first elastic clamping assembly is provided on the first bracket body. The cover body includes an arc-shaped cover and a first clip. The arc-shaped cover is located radially outside the drum. The first clip is fixed to one end of the arc-shaped cover and installed on the first bracket. The first clip is clipped and fixed to the first elastic clip assembly.
3. The drum assembly according to claim 2, characterized in that: The first elastic clamping assembly includes two first clamping parts and a first spring arranged between the two first clamping parts. The two ends of the first spring respectively abut against the two first clamping parts, and the spring force of the first spring is utilized to enable the two first clamping parts to be clamped in the corresponding first clamping grooves of the first buckle.
4. The drum assembly according to claim 3, characterized in that: Each of the first clamping members has a first operating portion protruding from the first bracket body. By applying a force to the first operating portion to overcome the spring force of the first spring, the two first clamping members can be released from the first buckle.
5. The drum assembly according to any one of claims 1 to 4, characterized in that: The second bracket includes a second bracket body and a bearing, the bearing is mounted on the second bracket body, the shaft portion passes through the bearing and is supported by the bearing, and the shaft portion is coaxially inserted into the drum.
6. The drum assembly according to claim 5, characterized in that The frame further includes a second elastic snap-fit assembly, which is disposed on the frame body. The side support frame further includes a second clip, which is fixed to the side plate and inserted into the frame body, and the second clip is clipped and fixed with the second elastic clip assembly.
7. The drum assembly according to claim 6, characterized in that: The second elastic clip assembly includes two second clips and second springs corresponding to the two second clips respectively. The two ends of the second spring respectively abut against the corresponding second clip and the frame body. The spring force of the second spring is utilized to enable the two second clips to be clipped into the corresponding second clip grooves of the second buckle.
8. The drum assembly according to claim 7, characterized in that: Each second clamping member has a second operating portion protruding from the frame body. By applying a force to the second operating portion to overcome the spring force of the second spring, the second clamping member can be released from the second buckle.
9. The drum assembly according to any one of claims 1 to 4, characterized in that: The drum assembly also includes a motor and a gear transmission mechanism, The motor is mounted on the frame. The gear transmission mechanism includes an output gear and an intermediate gear that are meshed with each other. The output gear is connected to the motor in a transmission manner. The intermediate gear is rotatably connected to the frame. The first bracket is formed with gear teeth and is always meshed with the intermediate gear. The motor drives the cover body to rotate via the gear transmission mechanism and the first bracket.
10. A self-moving cleaning device, characterized in that: The self-moving cleaning device comprises a main body and the drum assembly according to any one of claims 1 to 9, wherein the drum assembly is mounted on the main body, and the central axis of the drum of the drum assembly extends along the left-right direction of the self-moving cleaning device.