Expansion device and cleaning system

Abstract

The invention relates to the technical field of cleaning, in particular to an expansion device and a cleaning system. The expansion device comprises a shell, the shell is connected with a base station of the self-cleaning equipment, and the shell is provided with at least one accessory groove; and the accessories are detachably arranged in the corresponding accessory grooves, and the accessories are used for replacing a mechanical arm on the self-cleaning equipment so as to achieve different functions. According to the mechanical arm, the accessory grooves are formed in the shell, the accessories are detachably arranged in the corresponding accessory grooves, and the mechanical arm can replace different accessories according to needs, so that multiple cleaning functions are achieved, and the mechanical arm can adapt to different cleaning tasks. Different accessories are replaced through the mechanical arm, the limitation of the single function of a traditional sweeper and simply additionally-installed mechanical arm equipment is broken through, and multiple cleaning modes can be switched through single equipment. The self-cleaning equipment can be flexibly adjusted according to different cleaning requirements and environmental conditions, is suitable for various use scenes, meets individual requirements of different users, and improves the use experience of the users.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202511833048.5 (22) Application Date 2025.09.30 (66) Domestic Priority Data 202520560978.7 2025.03.27 CN (62) Divisional Application Data 202511431992.8 2025.09.30 (71) Applicant: Chase Innovation Technology (Suzhou) Co., Ltd. Address: Units 1, 2, and 3, Building 8, No. 1688, Songwei Road, Guoxiang Street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province, 215000 (72) Inventors: Zhang Gan, Zou Qiangbin, He Xiaofeng (74) Patent Agency: Beijing Tongli Juncheng Intellectual Property Agency Co., Ltd. 11205 Patent Attorney: Liu Fanfan (51) Int.Cl. A47L 11 / 24 (2006.01) A47L 11 / 40 (2006.01) A47L 7 / 02 (2006.01) A47L 9 / 00 (2006.01) A47L 9 / 14 (2006.01) A47L 9 / 28 (2006.01) (54) Invention Title: Extension Device and Cleaning System (57) Abstract: This application relates to the field of cleaning technology, and in particular to an extension device and a cleaning system. The extension device includes: a housing, which is connected to the base station of a self-cleaning device, and the housing is provided with at least one accessory slot; accessories, which are detachably disposed in the corresponding accessory slots, and the accessories are used for replacement by the robotic arm on the self-cleaning device to achieve different functions. By providing accessory slots on the housing and detachably disposing of accessories in the corresponding accessory slots, the robotic arm can replace different accessories as needed, thereby achieving multiple cleaning functions and enabling the device to adapt to different cleaning tasks. By changing different accessories with a robotic arm, the single-function limitation of traditional sweepers and simple robotic arm-added devices is broken through, and a single device can switch between multiple cleaning modes. The self-cleaning device can flexibly adjust according to different cleaning needs and environmental conditions, adapt to various usage scenarios, meet the personalized needs of different users, and improve the user experience. Claims 1 page Description 17 pages Drawings 11 pages CN 121549690 A 2026.02.24 CN 1 21 54 96 90 A 1. An extension device for use in a self-cleaning device, characterized in that the extension device comprises: a housing (10), the housing (10) having at least one accessory slot (11), the housing (10) having an unlocking structure (17); an accessory (20), the accessory (20) being detachably disposed in the corresponding accessory slot (11), the accessory (20) being close to1. A quick-release structure (27) is provided on one side of the opening of the accessory slot (11), and the unlocking structure (17) is used to cooperate with the quick-release structure (27) to remove the accessory (20) inserted into the accessory slot (11) and position it in a preset position in the accessory slot (11). 2. The extension device according to claim 1, wherein the unlocking structure (17) is provided with a pressing part on the side facing the accessory slot (11), and the quick-release structure (27) is provided with a locking button for unlocking. 3. The extension device according to claim 1, wherein the accessory (20) is detachably electrically connected to the robotic arm on the self-cleaning device through the quick-release structure (27). 4. The extension device according to claim 3, wherein the accessory (20) includes at least one of a brush accessory (23), a cleaning accessory (24), and a vacuuming accessory (25). 5. The extension device according to claim 4, characterized in that the vacuuming accessory (25) is provided with a charging electrode (251), and a charging component (12) is provided in the accessory slot (11) corresponding to the vacuuming accessory (25), the charging component (12) being used to electrically connect with the charging electrode (251) to charge the vacuuming accessory (25). 6. The extension device according to claim 4, characterized in that the vacuuming accessory (25) is provided with a power connector (26) on the side near the opening of the accessory slot (11), the power connector (26) being used to electrically connect with the power supply component on the robotic arm. 7. The extension device according to claim 3, characterized in that the quick-release structure (27) is provided with a power connector (26), and the accessory (20) is electrically connected to the robotic arm through the power connector (26). 8. The expansion device according to claim 1, wherein the accessory slots (11) comprise a plurality of slots, the plurality of accessory slots (11) are located on the same side of the housing (10), and the plurality of accessory slots (11) are arranged sequentially in a vertical direction. 9. The expansion device according to claim 1, wherein an accessory compartment (18) is movably provided in the housing (10), and the accessory slots (11) are disposed on the accessory compartment (18). 10. The expansion device according to claim 9, wherein the accessory compartment (18) comprises an elastic part (181) and at least one compartment part (182) disposed on the elastic part (181), the accessory slots (11) are disposed on the compartment part (182), and the elastic part (181) is connected to the housing (10). 11. The expansion device according to claim 10, wherein the housing (10) is further provided with a fixing rope (183), one end of the fixing rope (183) is connected to the housing (10), and the other end is connected to the compartment part (182).12. The expansion device according to claim 1, characterized in that the accessory slot (11) includes a cleaning slot (113), the expansion device (100) further includes a drying fan (40), the housing (10) is provided with a drying air duct (19), the drying air duct (19) is connected to the cleaning slot (113), and the drying fan (40) is located at the air inlet end of the drying air duct (19). 13. A cleaning system, characterized in that it includes a self-cleaning device and an expansion device (100) according to any one of claims 1-12. Claims 1 / 1 page 2 CN 121549690 A Expansion Device and Cleaning System

[0001] This application is a divisional application. The application number of the original application is 202511431992.8, and the original application date is September 30, 2025. The entire contents of the original application are incorporated herein by reference. This application claims priority to Chinese Patent Application No. 202520560978.7, filed on March 27, 2025, entitled "Extension Device and Self-Cleaning Equipment," the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of cleaning technology, and more particularly to an extension device and cleaning system. Background Art

[0003] With the continuous development of science and technology and the continuous improvement of people's living standards, self-cleaning devices such as sweeping robots have become widely used in people's homes because they are more time-saving and labor-saving than traditional manual cleaning, greatly liberating human hands.

[0004] In order to better realize the cleaning function, current self-cleaning devices are equipped with robotic arms to move obstacles and collect items. However, since the grippers on the robotic arm only have the function of gripping objects, the functions achieved by adding a robotic arm to a sweeping robot are relatively limited, resulting in low utilization of the robotic arm. Summary of the Invention

[0005] This application provides an extension device and cleaning system to extend the function of a robotic arm and improve its utilization.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides an extension device for use in a self-cleaning device. The extension device includes:

[0008] a housing, which is connected to the base station of the self-cleaning device, and the housing is provided with at least one accessory slot;

[0009] an accessory, which is detachably disposed in the corresponding accessory slot. The accessory is used to replace the robotic arm on the self-cleaning device to achieve different functions.

[0010] As an optional embodiment, the accessory includes a clamping part and a functional part. The functional part is connected to the clamping part and located on the side of the clamping part away from the opening of the accessory slot. The clamping part is used for gripping by the claw on the robotic arm.

[0011] As an optional embodiment, the clamping part is provided with a clamping groove. The groove wall of the clamping groove is provided with an engaging member. The engaging member is used to abut against the claw to achieve clamping of the accessory.

[0012] As an optional embodiment, the accessories include at least one of brush accessories, cleaning accessories, and vacuuming accessories.

[0013] As an optional embodiment, the accessory slot corresponding to the vacuuming accessory is a vacuuming slot, the housing is provided with a dust channel, the dust channel is connected to the base station, the vacuuming slot is provided with a dust collection opening, the dust collection opening is connected to the dust channel, and the vacuuming accessory is provided with a dust collection port, the dust collection port is connected to the dust collection opening.

[0014] As an optional embodiment, the expansion device further includes an air duct conversion structure, the power end of the air duct conversion structure is connected to the suction end of the base station, and the air duct conversion structure connects the dust channel to the dust bag of the base station.

[0015] As an optional embodiment, the vacuuming accessory is provided with a charging electrode, and the accessory slot corresponding to the vacuuming accessory is provided with a charging component on page 1 / 17 of the instruction manual 3 CN 121549690 A, the charging component is used to electrically connect with the charging electrode to charge the vacuuming accessory.

[0016] As an optional embodiment, the vacuuming accessory has a power connector on the side near the accessory slot opening, which is used to electrically connect with the power supply on the robotic arm.

[0017] As an optional embodiment, the housing is detachably connected to the base station, or the housing is fixedly connected to the base station.

[0018] As an optional embodiment, the housing has an electrical connector for electrical connection with the base station, the electrical connector including at least one of a spring electrode and a wire.

[0019] As an optional embodiment, the accessory slot includes multiple slots, which are located on the same side of the housing and are arranged sequentially in a vertical direction.

[0020] As an optional embodiment, the accessory is detachably connected to and / or detachably electrically connected to the robotic arm.

[0021] As an optional embodiment, the accessory has a quick-release structure on the side near the accessory slot opening, and the accessory is detachably electrically connected to the robotic arm through the quick-release structure.

[0022] As an optional embodiment, the housing has an unlocking structure for cooperating with the quick-release structure to remove the accessory inserted into the accessory slot from the robotic arm.

[0023] In one optional embodiment, an accessory compartment is movably provided in the housing, and an accessory slot is provided on the accessory compartment.

[0024] In one optional embodiment, the accessory compartment includes an elastic part and at least one compartment part provided on the elastic part, the accessory slot is provided on the compartment part, and the elastic part is connected to the housing.

[0025] In one optional embodiment, the housing is further provided with a fixing rope, one end of which is connected to the housing, and the other end of which is connected to the compartment part.

[0026] In one optional embodiment, the accessory slot includes a cleaning slot, the extension device further includes a drying fan, the housing is provided with a drying air duct, the drying air duct communicates with the cleaning slot, and the drying fan is provided at the air inlet end of the drying air duct.

[0027] This application provides a cleaning system, including a self-cleaning device, a base station, and the above-mentioned extension device.

[0028] The extension device and cleaning system provided in this application, by setting at least one accessory slot on the housing and detachably placing accessories in the corresponding accessory slot, allows the robotic arm of the self-cleaning device to achieve multiple cleaning functions as needed by changing different accessories. This flexibility allows the device to adapt to different cleaning tasks. By changing different accessories through the robotic arm, the single-function limitation of traditional sweepers and devices with simple robotic arm additions is broken. A single device can switch between multiple cleaning modes, expanding the function of the robotic arm and improving its utilization. The self-cleaning device can flexibly adjust according to different cleaning needs and environmental conditions, adapt to various usage scenarios, meet the personalized needs of different users, and improve the user experience. Brief Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is one of the structural schematic diagrams of the expansion device provided in the embodiments of this application;

[0031] Figure 2 is one of the partially exploded structural schematic diagrams of the expansion device shown in Figure 1;

[0032] Figure 3 is another partially exploded structural schematic diagram of the expansion device shown in Figure 1;

[0033] Figure 4 is another structural schematic diagram of the expansion device provided in the embodiments of this application;

[0034] Figure 5 is one of the partially exploded structural schematic diagrams of the expansion device shown in Figure 4; Specification 2 / 17 pages 4 CN 121549690 A

[0035] Figure 6 is another partially exploded structural schematic diagram of the expansion device shown in Figure 4;

[0036] Figure 7 is a third structural schematic diagram of the expansion device provided in the embodiments of this application;

[0037] Figure 8 is a fourth structural schematic diagram of the expansion device provided in the embodiments of this application;

[0038] Figure 9 is a partially exploded structural schematic diagram of the expansion device shown in Figure 8;

[0039] Figure 10 is a fifth structural schematic diagram of the expansion device provided in the embodiments of this application;

[0040] Figure 11 is a partially exploded structural schematic diagram of the expansion device shown in Figure 10.

[0041] Explanation of reference numerals:

[0042] 100 - Extension device; 10 - Housing; 11 - Accessory slot; 111 - Dust collection slot; 112 - Dust collection opening; 113 - Cleaning slot; 12 - Charging component; 13 - Connector; 131 - Snap-fit ​​structure; 14 - Spring electrode; 141 - Elastic component; 142 - Electrical connector; 143 - Positioning component; 15 - Storage cavity; 16 - Dust channel; 17 - Unlocking structure; 18 - Accessory compartment; 181 - Elastic part; 182 - Cabin body; 183 - Fixing rope; 19 -Drying air duct; 20-Accessories; 21-Clamping part; 211-Clamping groove; 212-Interlocking part; 22-Functional part; 23-Brush accessory; 24-Cleaning accessory; 25-Dust suction accessory; 251-Charging electrode; 252-Manual switch; 253-Charging interface; 254-Dust collection port; 26-Power connection part; 27-Quick release structure; 30-Air duct conversion structure; 31-Power end; 40-Drying fan. Detailed Embodiments

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0044] With the continuous development of science and technology and the continuous improvement of people's living standards, self-cleaning devices such as sweeping robots have become widely used in people's homes because they are more time-saving and labor-saving than traditional manual cleaning, greatly liberating people's hands.

[0045] In order to better realize the cleaning function, current self-cleaning devices are equipped with robotic arms to move obstacles and collect items. However, since the grippers on the robotic arms only have the function of gripping objects, the functions achieved by adding robotic arms to sweeping robots are relatively limited, resulting in low utilization of the robotic arms.

[0046] In order to overcome the defects in the existing technology, after repeated thinking and verification, the inventors discovered that if an accessory compartment is added to store the extended accessories that the robotic arms can grip, and the robotic arms can autonomously grip the accessories in the accessory compartment, a single device can switch between multiple cleaning modes, thereby breaking through the single-function limitation of traditional sweeping robots and simply adding robotic arms, and improving the utilization of robotic arms.

[0047] In view of this, this application provides an extension device for use in a self-cleaning device. The extension device includes:

[0048] a housing, the housing being connected to the base station of the self-cleaning device, the housing having at least one accessory slot;

[0049] accessories, the accessories being detachably disposed in the corresponding accessory slot, the accessories being used to replace the robotic arm on the self-cleaning device to achieve different functions.

[0050] By providing at least one accessory slot on the housing and detachably disposing of the accessories in the corresponding accessory slot, the robotic arm of the self-cleaning device can achieve multiple cleaning functions as needed by replacing different accessories. This flexibility allows the device to adapt to different cleaning tasks. By replacing different accessories with the robotic arm, the single-function limitation of traditional sweepers and simply adding robotic arms is overcome. A single device can switch between multiple cleaning modes, expanding the functionality of the robotic arm.Yes, it improves the utilization of the robotic arm. The self-cleaning device can be flexibly adjusted according to different cleaning needs and environmental conditions, adapting to various usage scenarios, meeting the personalized needs of different users, and improving the user experience.

[0051] The contents of this application will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the contents of this application more clearly and in detail.

[0052] The specific structure of the extension device and various possible implementation methods will be described in detail below.

[0053] Figure 1 is one of the structural schematic diagrams of the extension device provided in the embodiment of this application. Figure 2 is one of the partially exploded structural schematic diagrams of the extension device shown in Figure 1. Figure 3 is another partially exploded structural schematic diagram of the extension device shown in Figure 1. Figure 4 is another structural schematic diagram of the extension device provided in the embodiment of this application. Figure 5 is one of the partially exploded structural schematic diagrams of the extension device shown in Figure 4. Figure 6 is another partially exploded structural schematic diagram of the extension device shown in Figure 4. Figure 7 is a third structural schematic diagram of the extension device provided in the embodiment of this application. Figure 8 is a fourth structural schematic diagram of the extension device provided in the embodiment of this application. Figure 9 is a partially exploded structural schematic diagram of the extension device shown in Figure 8. Figure 10 is a structural schematic diagram of the extension device provided in the embodiment of this application. Figure 11 is a partially exploded structural schematic diagram of the extension device shown in Figure 10.

[0054] As shown in Figures 1 and 4, the extension device 100 provided in the embodiment of this application is used in a self-cleaning device. The extension device 100 is used to provide extension functionality for the robotic arm of the self-cleaning device.

[0055] The self-cleaning device is used in daily life and can automatically clean the house. It is also suitable for cleaning selected areas, saving time and effort and freeing up human hands.

[0056] In one possible implementation, the self-cleaning device can be a sweeping robot. However, it is not limited to this. In other possible implementations, the self-cleaning device can also be a sweeping and mopping robot or other self-moving cleaning devices that meet cleaning needs.

[0057] As shown in Figure 2, the extension device 100 includes a housing 10 and accessories 20. The housing 10 is connected to the base station of the self-cleaning device. The housing 10 is used to store the accessories 20 that the robotic arm can grip.

[0058] The housing 10 is provided with at least one accessory slot 11. Accessory 20 is detachably disposed in the corresponding accessory slot 11. Accessory 20 is used to replace the robotic arm on the self-cleaning device to achieve different functions.

[0059] In one possible implementation, accessory 20 is gripped by the gripper on the robotic arm to achieve different functions.

[0060] As shown in FIG8, in one possible implementation, accessory 20 can be detachably connected to the robotic arm. The gripper on the robotic arm is also one of the accessories 20, which can be detached from the robotic arm, so that the robotic arm can directly pass throughConnecting multiple different accessories 20 enables different functions.

[0061] By setting at least one accessory slot 11 on the housing 10 and detachably placing the accessory 20 in the corresponding accessory slot 11, the accessory 20 that expands the function of the robotic arm can be stored. The robotic arm of the self-cleaning device can autonomously grip or directly connect and replace different accessories 20 as needed, thereby realizing multiple cleaning functions. This flexibility allows the device to adapt to different cleaning tasks. By replacing different accessories 20 with the robotic arm, the single-function limitation of traditional sweepers and simple robotic arm-added devices is broken. A single device can switch between multiple cleaning modes, expanding the function of the robotic arm and improving the utilization of the robotic arm. The self-cleaning device can flexibly adjust according to different cleaning needs and environmental conditions, adapt to multiple usage scenarios, meet the personalized needs of different users, and improve the user experience. The modular design of the housing 10 and accessories 20 allows the device to be customized and expanded according to different market demands, with good design flexibility and market adaptability.

[0062] As shown in Figures 5 and 6, in one possible implementation, the accessory 20 includes a clamping part 21 and a functional part 22. The functional part 22 is connected to the clamping part 21 and located on the side of the clamping part 21 away from the opening of the accessory slot 11. The clamping part 21 is used for gripping. The functional part 22 is used to realize various special functions.

[0063] By dividing the accessory 20 into a clamping part 21 and a functional part 22, the design is more modular, making replacement and maintenance more convenient. The functional part 22 can be customized and replaced according to different cleaning tasks, such as installing different brush heads, mops, or other cleaning tools, allowing the device to quickly switch between different cleaning functions by gripping the clamping parts 21 of different accessories 20 with grippers. This design can adapt to different types of self-cleaning equipment and robotic arms, has good versatility and adaptability, and is easy to promote and apply in different products.

[0064] The clamping part 21 is specifically designed to cooperate with the gripper of the robotic arm, ensuring that the accessory 20 can be securely clamped during operation, improving the stability and reliability of the equipment operation, and reducing the risk of failure caused by the accessory 20 loosening or falling off. The clamping part 21 is designed specifically for gripper clamping, simplifying the operation process of the robotic arm. The robotic arm only needs to identify and clamp the clamping part 21 to complete the replacement and use of the accessory 20, reducing the complexity of operation.

[0065] In one possible implementation, the clamping part 21 is provided with a clamping groove 211, which is used for the robotic arm to extend into for clamping.

[0066] The clamping groove 211 provides a dedicated fixed position for the gripper of the robotic arm, ensuring that the accessory 20 can be securely grasped and held during the clamping process, reducing the possible shaking or falling off of the accessory during operation, and improving the stability and reliability of the equipment operation.The design of the clamping slot 211 enables the robotic arm to more accurately position and clamp the accessory 20, which helps to improve the operating efficiency of the equipment and ensures that each replacement or use of the accessory 20 can be completed quickly and accurately. Since the clamping slot 211 provides a clear clamping position for the robotic arm, the operation procedure of the robotic arm can be simplified, reducing the complexity of the robotic arm in finding and clamping the accessory 20 and improving the degree of automation. The design of the clamping slot 211 also reduces the risk of misoperation, reduces equipment damage or failure caused by improper clamping, and improves the overall safety of operation.

[0067] The clamping slot 211 provides a dedicated clamping area, reducing friction and wear between the robotic arm gripper and other parts of the accessory 20, thereby extending the service life of the accessory 20 and the robotic arm.

[0068] The clamping slot 211 can be adjusted and optimized according to different robotic arm designs, with high design flexibility, and can adapt to different types of self-cleaning equipment and robotic arms. This design makes the equipment more intuitive and user-friendly during use, and users do not need to worry about the installation and clamping of accessories, improving the user experience.

[0069] In one possible implementation, the wall of the clamping groove 211 is provided with a biting member 212, which is used to abut against the gripper to clamp the accessory 20.

[0070] The biting member 212 provides additional contact and abutment points, increasing the friction and clamping force between the gripper and the accessory 20, ensuring that the accessory 20 is more stable during operation, reducing the risk of slippage or dislodgement, and improving the overall safety of operation. Through the abutment between the biting member 212 and the gripper, the accessory 20 can maintain higher stability during clamping, reducing the displacement of the accessory 20 caused by vibration or external force, and improving the reliability of equipment operation. The biting member 212 also helps the gripper of the robotic arm to achieve precise positioning in the clamping groove 211, ensuring that the accessory 20 can be accurately grasped and placed in each operation, improving the operating efficiency and automation of the equipment.

[0071] The design of the engagement element 212 reduces the risk of misoperation of the gripper during the clamping process, ensuring that the accessory 20 can be correctly clamped and used, and reducing the equipment failure rate. By providing a more stable clamping, the engagement element 212 reduces wear between the gripper and the accessory 20, thereby extending the service life of the accessory 20 and the robotic arm.

[0072] In one possible implementation, when the robotic arm extends into the clamping groove 211, the gripper of the robotic arm opens to abut against the engagement element 212, thereby clamping the accessory 20.

[0073] The clamping element 212 is provided on the groove wall of the clamping groove 211, so that the gripper can achieve abutment between the engagement element 212 and the gripper through internal support. The robotic arm extends into the clamping groove 211 in the closed state, and then opens the gripper to abut against the engagement element 212 on the inner wall of the clamping groove 211. This design allows the size of the clamping groove 211 of the accessory 20 to be as small as possible, thereby making the extension device 100The width is also minimized, saving overall space in the equipment. The internal support clamping also distinguishes the action of clamping the accessory 20 from other operating modes, reducing the risk of misoperation and improving safety. The internal support design makes the friction force evenly distributed during clamping, reducing local stress concentration, reducing wear on the accessory 20 and the gripper, and extending its service life. In addition, when the gripper is working to clamp the accessory 20, it is hidden in the clamping groove 211 inside the accessory 20, reducing the possibility of collision with external obstacles, thereby improving the safety of the equipment and reducing the risk of the accessory 20 falling off or the equipment malfunctioning due to collision.

[0074] In one possible implementation, the biting member 212 is a toothed member provided on the groove wall of the clamping groove 211.

[0075] The toothed engagement between the gripper and the toothed engagement of the inner wall of the clamping groove 211 provides a stable clamping, ensuring that the accessory will not loosen or fall off during operation.

[0076] In one possible implementation, the accessory 20 includes at least one of a brush accessory 23, a cleaning accessory 24, and a vacuuming accessory 25.

[0077] By providing multiple types of accessories 20, the device can perform a variety of cleaning tasks. Different accessories 20 are optimized for specific cleaning tasks, which can improve cleaning efficiency. For example, the brush accessory 23 can be used to sweep away dust and debris, the cleaning accessory 24 is suitable for wet wiping or deep cleaning, such as setting a sponge, scouring pad, etc. on the functional part 22, while the vacuuming accessory 25 is used to suck up fine particles and dust. This versatility allows the device to adapt to different cleaning needs and environments. The device can select the appropriate accessory 20 according to the specific cleaning task and environmental conditions, thereby achieving the best cleaning effect, improving the practicality of the device and user satisfaction. The device can automatically identify and replace different accessories 20 without manual intervention by the user, simplifying the operation process and improving the user experience. Each accessory 20 can be replaced or cleaned individually as needed, simplifying the maintenance process of the device and extending the service life of the device.

[0078] The accessory 20 may also include accessories such as spraying accessories, scraper accessories, and bucket accessories to perform other functions. For example, the spraying accessory is used to spray cleaning agent on dirty areas, the scraper accessory is used to scrape off dirt, and the bucket accessory is used to collect dirt.

[0079] As shown in FIG9, in one possible implementation, the accessory slot 11 corresponding to the vacuuming accessory 25 is a vacuuming slot 111. As shown in FIG10, the housing 10 is provided with a dust channel 16, which is connected to the base station. As shown in FIG11, the vacuuming slot 111 is provided with a dust collection opening 112, which is connected to the dust channel 16. The vacuuming accessory 25 is provided with a dust collection port 254, which is connected to the dust collection opening 112.

[0080] In one possible implementation, the dust channel 16 is directly connected to the dust collection bag of the base station.

[0081] During dust collection, by connecting the dust collection port 254 of the vacuum accessory 25 with the dust collection opening 112 and the dust channel 16, dust and debris can be directly drawn into and transported to the dust collection bag of the base station by passing through the dust collection port 254, the dust collection opening 112, and the dust channel 16 in sequence. This direct dust collection path improves the vacuuming efficiency and ensures a more thorough cleaning effect. Since dust and debris are directly transported to the dust collection bag, the accumulation inside the vacuum accessory 25 is reduced, the cleaning and maintenance frequency of the vacuum accessory 25 is reduced, and the service life of the equipment is extended. The dust collection bag collects dust and debris in a concentrated manner, reducing the secondary spread of dust in the air and improving indoor air quality and hygiene. Users only need to replace or empty the dust collection bag periodically, without having to frequently clean the dust inside the vacuum accessory 25, simplifying the operation process and improving the user experience.

[0082] In one possible implementation, the extension device 100 also includes an air duct conversion structure 30. The power end 31 of the air duct conversion structure 30 is connected to the suction end of the base station. The air duct conversion structure 30 connects the dust duct 16 to the dust bag of the base station.

[0083] By setting the air duct conversion structure 30, the suction power of the base station itself is cleverly used as the power source for emptying the vacuum cleaner accessory 25. There is no need to set an additional fan for emptying the vacuum cleaner accessory 25 on the extension device 100 or the base station, which simplifies the overall structure, reduces manufacturing costs and weight, and helps to further miniaturize and lighten the weight, thereby improving the comfort of use. Instruction manual 6 / 17 pages 8 CN 121549690 A

[0084] At the same time, the suction power of the base station is usually stronger and more stable. With this stronger suction power, the dust and debris in the vacuum cleaner accessory 25 and the dust duct 16 can be sucked out more thoroughly, especially those hairs and fibers that are compacted or tangled, reducing residue. In addition, the air duct in the air duct conversion structure 30 can be designed to guide the airflow to be sucked into the dust bag in the best path and direction, forming a "tornado" effect or directional blowing, further improving the emptying efficiency and avoiding dust accumulation in dead corners.

[0085] As shown in Figures 2 and 7, in one possible implementation, the vacuum cleaner accessory 25 is provided with a charging electrode 251, and a charging component 12 is provided in the accessory slot 11 corresponding to the vacuum cleaner accessory 25. The charging component 12 is used to electrically connect with the charging electrode 251 to charge the vacuum cleaner accessory 25.

[0086] By providing a charging electrode 251 on the vacuum cleaner accessory 25 and a charging component 12 in the accessory slot 11, the vacuum cleaner accessory 25 can be directly charged without being disassembled, ensuring that it is always in a usable state, improving the working efficiency and reliability of the device. The device can automatically complete the charging process of the vacuum cleaner accessory 25 without manual intervention, improving the automation level of the device, reducing the user's operational burden, and simplifying the operation process by allowing the user to automatically charge the vacuum cleaner accessory 25 without manual intervention.

[0087] In one possible implementation, accessory 20 does not require charging and is powered directly by the robotic arm.

[0088] The built-in power supply system of accessory 20 leads to a complex design and heavy weight, making it difficult for the robotic arm to control accessory 20 to perform precise cleaning tasks. Powering accessory 20 through the robotic arm reduces design difficulty and achieves lightweight design, thereby facilitating precise control of the robotic arm.

[0089] In one possible implementation, a power connector 26 is provided on the side of the vacuuming accessory 25 near the opening of the accessory slot 11. The power connector 26 is used for electrical connection with the power supply component on the robotic arm.

[0090] Integrating a battery, motor drive circuit, and related structural support components into the vacuuming accessory 25 results in a complex structure, large size, and significantly increased weight of the vacuuming accessory 25 itself. By removing the heavy power supply unit (battery, high-power circuit) from the vacuuming accessory 25 and connecting it to the robotic arm via the power connector 26, the vacuuming accessory 25 is directly powered by the robotic arm or the self-cleaning device. The vacuuming accessory 25 itself retains only core functional components (such as the roller brush, motor, and light) and a lightweight power connector, significantly reducing its weight. This allows the robotic arm to grasp, move, and place the vacuuming accessory 25 with lower power consumption, faster speed, and higher precision.

[0091] Simultaneously, the vacuuming accessory 25 eliminates the need for a battery compartment and complex circuitry, simplifying its structure, reducing costs, making it easier to manufacture and maintain, and increasing reliability.

[0092] In one possible implementation, the vacuuming accessory 25 includes a communication unit that is communicatively connected to the self-cleaning device.

[0093] Through the communication unit, the vacuuming accessory 25 can transmit information such as its working status, performance data, and battery level to the self-cleaning device in real time, enabling the device to monitor the status of the vacuuming accessory 25 in real time and make adjustments when necessary, thus improving the device's intelligence. The self-cleaning device can dynamically adjust its working mode and parameters according to the data transmitted by the vacuuming accessory 25 to optimize cleaning effect and energy consumption, which helps to improve the overall performance and efficiency of the device. The communication unit can help identify and diagnose the faults or abnormalities of the vacuuming accessory 25, and notify the user in a timely manner or take corrective measures automatically, reducing downtime and maintenance costs.

[0094] Through the communication connection, the user can remotely control the operation of the vacuuming accessory 25, or update its software and firmware wirelessly to obtain the latest functions and performance improvements. The user can view the status and performance data of the vacuuming accessory 25 through the interface or mobile application of the self-cleaning device, and obtain a more intuitive user experience and greater operational convenience. The communication unit can send an alarm in a timely manner when abnormal conditions (such as overheating or battery failure) are detected, helping to prevent potential safety hazards. Instruction manual 7 / 17 pages 9 CN 121549690 A

[0095] In one possible implementation, the vacuuming accessory 25 includes a manual switch 252.

[0096] In some cases, users may want to quickly start the vacuuming function without using the main device or remote control. In this case, the manual switch 252 provides a convenient solution, especially in emergency cleaning or spot cleaning, where the vacuuming accessory 25 can be used as a manual handheld vacuum. Users can directly control the opening and closing of the vacuuming accessory 25 through the manual switch 252, making the device more flexible in use. Users can start or stop the vacuuming function immediately as needed. With the manual switch 252, users can turn off the device in time when the vacuuming function is not needed, thereby saving energy, extending battery life, and reducing unnecessary energy consumption. The manual switch 252 is generally designed to be intuitive and easy to use, allowing users to control the device without complicated operations, making it suitable for users of all ages.

[0097] At the same time, the manual switch 252 can quickly shut down the device in an emergency, preventing damage or safety hazards caused by unexpected situations (such as blockage or overheating). In the event of a failure in the automatic control system, the manual switch 252 provides a backup operating method, ensuring that the device can continue to be used until the problem is resolved.

[0098] In one possible implementation, the vacuum cleaner accessory 25 is provided with a charging interface 253.

[0099] By providing a charging interface 253 on the vacuum cleaner accessory 25, the vacuum cleaner accessory 25 can be charged independently of the main device, allowing users to charge the vacuum cleaner accessory 25 without using the main device, thus improving the flexibility and convenience of the device. The charging interface 253 provides a simple and intuitive charging method, allowing users to charge the vacuum cleaner accessory 25 without complicated operations, improving the overall user experience. The charging interface 253 allows users to charge the vacuum cleaner accessory 25 anywhere there is a power outlet, no longer limited to a specific charging base or location, increasing the flexibility of use.

[0100] In one possible implementation, the charging interface 253 is a Type-C charging port.

[0101] The Type-C charging port is a currently common standard charging interface. Through the standardized design of the charging interface 253, the compatibility of the vacuum cleaner accessory 25 with other charging devices can be improved, allowing users to use a universal charger to charge the vacuum cleaner accessory 25, reducing reliance on dedicated charging devices.

[0102] In one possible implementation, the housing 10 is detachably connected to the base station.

[0103] The detachable design allows the user to easily separate the housing 10 from the base station, facilitating cleaning and maintenance of the device's internal components, helping to maintain the device in good working order and extend its service life. The detachable design also allows the user to remove the housing 10 from the base station as needed, making it convenient for use in different locations or environments, improving the device's applicability and portability.

[0104] Meanwhile, in the event of a malfunction, the user can quickly disassemble the housing 10 to inspect and repair the problem, reducing equipment downtime and simplifying maintenance. The detachable connection supports a modular design, allowing users to replace or upgrade specific components (such as replacing the housing 10 with different functions) as needed, improving the device's scalability and adaptability.

[0105] When the device needs to be transported or stored, the detachable design allows the device to be broken down into smaller parts, reducing space requirements and simplifying transportation and storage.

[0106] As shown in FIG3, in one possible implementation, the housing 10 is provided with a connector 13, which has a snap-fit ​​structure 131 for snapping with the base station.

[0107] The snap-fit ​​structure 131 allows the user to quickly and easily connect or disconnect the housing 10 from the base station without using tools or performing complex operations, improving the device's operational efficiency. The snap-fit ​​structure 131 provides a secure connection, ensuring that the housing 10 and the base station will not accidentally separate during use, improving the device's safety and reliability. Compared to bolts or other fasteners, the snap-fit ​​structure 131 typically reduces wear on components during connection and disconnection, thereby extending the device's lifespan.

[0108] Meanwhile, the snap-fit ​​design is generally intuitive and easy to use, allowing users to easily understand and operate it, thus improving the overall user experience and satisfaction. When maintenance or component replacement is required, the snap-fit ​​structure 131 makes the process simpler and faster, reducing maintenance time and costs.

[0109] In one possible implementation, the connector 13 is rotatably mounted on the housing 10 to hide the snap-fit ​​structure 131 when the housing 10 is separated from the base station.

[0110] The rotatable design is generally easy to operate, allowing users to easily hide or reveal the snap-fit ​​structure 131, improving the ease of use of the device.

[0111] By hiding the snap-fit ​​structure 131 when separated, it can be effectively protected from dust, dirt, and physical damage, thereby extending its service life and maintaining its functionality. At the same time, the hidden snap-fit ​​structure 131 reduces the possibility of accidental contact or misoperation by the user when the device is separated, improving the safety of the device. When the device is detached, the concealed snap-fit ​​structure 131 reduces the risk of accidental contact by the user or other objects, thus reducing potential safety hazards.

[0112] The concealed snap-fit ​​structure 131 makes the appearance of the housing 10 neater and more aesthetically pleasing, enhancing the product's visual appeal and user experience. The concealed snap-fit ​​structure 131 reduces exposed complex components, making the surface of the housing 10 easier to clean and maintain.

[0113] In one possible implementation, when the housing 10 is detached from the base station, the connector 13 can be flipped (e.g., flipped 180 degrees) under gravity or spring action, or can be manually flipped to conceal the snap-fit ​​structure 131, making the extension device 100 more visible.The surface is smooth and aesthetically pleasing.

[0114] In one possible implementation, the housing 10 is fixedly connected to the base station.

[0115] The fixed connection ensures a stable bond between the housing 10 and the base station, reducing the risk of loosening or separation due to vibration or movement during use, and improving the overall stability and reliability of the device. Because no additional connection mechanism (such as a snap-fit ​​structure or connector) is required, the fixed connection simplifies the design and manufacturing process of the device, thereby reducing production costs and complexity. Since there are no removable parts, the fixed connection reduces the maintenance and replacement required due to wear or damage to the connectors, reducing the maintenance costs and complexity of the device. The fixed connection also reduces the possibility of the user accidentally separating the housing 10 and the base station during operation, improving the safety of the device, especially in applications requiring stable operation.

[0116] The fixed connection ensures that the housing 10 and the base station are always kept in the optimal position and alignment, providing consistent performance and functionality, and reducing performance degradation due to positional misalignment. The fixed connection design reduces the possibility of user misoperation or accidental disassembly during use, making it particularly suitable for environments requiring high safety and reliability. Since there are no moving parts, the fixed connection reduces failures due to mechanical fatigue or wear, improving the durability and service life of the device.

[0117] In one possible implementation, the housing 10 is electrically connected to the base station.

[0118] The electrical connection ensures that the electronic components or accessories 20 in the housing 10 can continuously obtain power support from the base station, thereby ensuring the continuous operation and functional stability of the device. Through the electrical connection, not only power can be transmitted, but also bidirectional data transmission can be achieved. This enables sensors or other electronic devices in the housing 10 to communicate with the base station in real time, supporting more complex and intelligent functions. The electrical connection can reduce the need for wireless transmission modules or independent power supplies, thereby simplifying device design, reducing manufacturing costs, and reducing potential points of failure.

[0119] Wired electrical connections are generally more stable than wireless connections and less susceptible to interference, ensuring reliable operation of the device in various environments. Through wired connections, the security of data transmission can be better guaranteed, reducing the risk of signal interception or interference that may occur in wireless transmission. At the same time, direct electrical connections are generally more energy-efficient than wireless transmission, reducing the additional energy consumption caused by wireless communication and improving the overall energy efficiency of the device.

[0120] In one possible implementation, the housing 10 is provided with an electrical connector for electrical connection to the base station.

[0121] The electrical connector ensures that the housing 10 can obtain a stable power supply from the base station, supporting the continuous operation and stability of the device, especially suitable for devices that require long-term operation. The electrical connector is not only used for power transmission but also for data transmission, ensuring reliable communication between the housing 10 and the base station, which helps to achieve more complex functions, such as real-time monitoring and remote...Process control. The use of electrical connectors supports modular design, allowing different housings 10 or base stations to be interchangeable or upgraded, improving the flexibility and adaptability of the device.

[0122] If the housing 10 contains a battery, the electrical connector can be used for efficient charging, ensuring that the device can automatically replenish its power when not in use, maintaining the device's availability at all times.

[0123] In one possible implementation, the electrical connector includes at least one of a spring electrode 14 and a wire.

[0124] By employing a spring electrode 14 or a wire, different device layouts and design requirements can be adapted, providing greater design flexibility and suitability for various application scenarios.

[0125] The spring electrode 14 can provide stable electrical contact, maintaining a good connection even when the device is subjected to vibration or slight movement, ensuring continuous power supply and data transmission. The spring electrode 14 has a certain degree of elasticity and can automatically adjust to adapt to different contact surface or position changes, reducing the requirement for precise alignment and improving the reliability of the connection. The spring electrode 14 is usually made of durable materials, capable of withstanding multiple connections and disconnections without affecting performance, extending the device's service life. The design of the spring electrode 14 makes the connection process between the housing 10 and the base station simpler and faster, eliminating the need for complex alignment or locking mechanisms and improving user convenience.

[0126] The wire provides a flexible connection method, allowing the device to move or adjust its position within a certain range without interrupting power or data transmission.

[0127] In one possible implementation, the spring electrode 14 includes an elastic element 141 and an electrical connector 142, the elastic element 141 abutting against the electrical connector 142 to electrically connect the electrical connector 142 to the base station when the housing 10 is connected to the base station.

[0128] The elastic element 141 provides continuous abutting pressure, ensuring good contact between the electrical connector 142 and the base station, ensuring stable power supply and data transmission, and maintaining connection even when the device is subjected to vibration or slight movement. Because the elastic element 141 can absorb and alleviate mechanical stress during the connection process, it reduces wear on the contact surface between the electrical connector 142 and the base station, extending the service life of the components.

[0129] In one possible implementation, the spring electrode 14 further includes a positioning member 143, which is used to position the electrical connector 142 when the housing 10 is connected to the base station, so that the electrical connector 142 is electrically connected to the base station.

[0130] The positioning member 143 ensures that the electrical connector 142 can be accurately aligned with the corresponding contact point of the base station during the connection process, reducing the possibility of connection errors and improving the reliability of the electrical connection. The positioning member 143 helps users find the correct position and angle more easily when connecting the housing 10 and the base station, simplifying the installation process and improving the user experience. By ensuring the correct positioning of the electrical connector 142, wear and damage caused by misalignment are reduced, and the service life of the contact surface between the electrical connector 142 and the base station is extended.

[0131] In one possible implementation, the positioning element 143 includes a magnet, which is magnetically connected to the base station to position the electrical connector 142.

[0132] The magnetic attraction of the magnet can automatically align the housing 10 and the base station, ensuring that the electrical connector 142 accurately contacts the corresponding contact point of the base station, reducing the error of human alignment. The user only needs to bring the housing 10 close to the base station, and the magnet will automatically attract and align, simplifying the connection process and improving the user experience and ease of operation. The magnetic connection allows users to quickly connect and disconnect the housing 10 from the base station, which is suitable for application scenarios that require frequent connection and disconnection, improving work efficiency.

[0133] Since the magnetic connection reduces the need for mechanical locking or plugging and unplugging, it reduces the wear and tear on the electrical connector 142 and the base station during connection and disconnection, extending the service life of the device. The magnet provides a certain attraction force, ensuring that the housing 10 and the base station can still maintain a stable connection during slight vibration or movement, reducing the risk of poor contact. Instruction manual, pages 10 / 17, CN 121549690 A

[0134] In one possible implementation, the accessory slots 11 include multiple slots, which are located on the same side of the housing 10.

[0135] Multiple accessory slots 11 allow users to install different accessories 20 as needed, realizing the modular design of the device and enhancing the flexibility and functional expansion capabilities of the device. Concentrating multiple accessory slots 11 on the same side helps to optimize the internal and external spatial layout of the device, allowing other sides to be used for different functions or design requirements. Concentrating the accessory slots 11 on one side makes the connection and management of accessories 20 easier, and users can more easily install, disassemble, and maintain them. Concentrating the accessory slots 11 on one side can keep the other sides of the housing 10 neat and beautiful, enhancing the visual appeal of the product and the user experience.

[0136] In one possible implementation, multiple accessory slots 11 are arranged sequentially along the vertical direction.

[0137] The vertically arranged accessory slots 11 can effectively utilize the height space of the equipment, save horizontal space, significantly reduce the floor area, and make the overall equipment more compact, suitable for application scenarios with limited space, and better meet user needs. The vertical arrangement makes it more convenient for users to install or disassemble accessories 20, especially when the equipment is high, users can operate one by one from top to bottom. The vertically arranged accessory slots 11 also support modular design, allowing users to gradually add or replace accessories 20 as needed from top to bottom, achieving flexible functional expansion. The vertically arranged accessory slots 11 make the inspection, maintenance, and management of accessories 20 more systematic, allowing users to inspect and maintain each accessory 20 one by one from top to bottom.

[0138] The vertical arrangement design can simplify internal wiring, allowing cables to be neatly arranged along the vertical direction, reducing cable crossing and tangling, and improving the cleanliness and maintenance convenience of the equipment.

[0139] In one possible implementation, the expansion device 100 may also be provided with an accessory slot 11, and multiple expansion devices 100 are stacked sequentially in the vertical direction, so that multiple accessory slots 11 are arranged sequentially in the vertical direction.

[0140] In one possible implementation, the housing 10 is also provided with a storage cavity 15, which is located at the top of the housing 10.

[0141] The storage cavity 15 provides additional storage space, allowing users to conveniently store small tools, accessories 20, or other items, thus improving the practicality of the device. The storage cavity 15 at the top position allows users to quickly retrieve stored items when needed, reducing the time spent searching for and retrieving items and improving work efficiency. Setting the storage cavity 15 at the top of the device is an effective use of the overall space of the device, without occupying the main operating space of the device, and is suitable for environments with limited space. The storage cavity 15 can help users store frequently used small items in a concentrated manner, reducing clutter in the work area and keeping the environment around the device clean and orderly. Storing small items in the storage cavity 15 can reduce the risk of items falling or being lost, especially in environments with a lot of movement or vibration.

[0142] By adding the storage cavity 15, the expansion device 100 is not only a single-function tool, but also has additional storage functions, enhancing the overall value of the device. Providing the storage cavity 15 can improve the user experience, making the device more user-friendly and closer to user needs, increasing user satisfaction.

[0143] In one possible implementation, the accessory 20 is detachably connected and / or detachably electrically connected to the robotic arm.

[0144] Through the electrical connection between the accessory 20 and the robotic arm, that is, the accessory 20 is powered by the robotic arm, the accessory 20 can retain only the core functional components, thereby simplifying the accessory design, reducing weight, and allowing the robotic arm to more accurately control the accessory 20 to perform precise cleaning tasks.

[0145] At the same time, when the accessory 20 is not grasped by the robotic arm, the circuit is completely disconnected, the accessory 20 does not consume any electrical energy, and the robotic arm will not supply power to idle interfaces, achieving zero standby power consumption, energy saving and environmental protection.

[0146] The electrical connection can be designed to be completed automatically during the process of the robotic arm grasping the accessory 20, so that the two actions of "grasping" and "connecting" are combined into one, simplifying the overall action process and improving the system's working efficiency. The power supply is only established at the moment when the robotic arm grasps the accessory 20 and establishes the electrical connection. This allows the system to intelligently allocate power only to the currently used tool, improving the system's energy efficiency.

[0147] Through the detachable electrical connection, the robotic arm can automatically change different accessories 20 for different cleaning tasks within a work cycle without interrupting the core power supply of the system, achieving seamless switching of functions.

[0148] The power supply function is integrated into the "grasping end" of the robotic arm instead of the accessory 20 being placed in a fixed position on the extension device 100.This means that when the robotic arm picks up and places the accessory 20, it does not need a very precise fixed docking socket to maintain power supply, reducing the requirements for the positioning accuracy of the accessory 20.

[0149] The accessory 20 becomes a completely independent module, and users can purchase, upgrade or repair the accessory 20 separately without having to consider complex circuit integration issues. If the accessory 20 is damaged, it can be directly replaced, resulting in low maintenance costs and a simple process.

[0150] In one possible implementation, the accessory 20 is provided with a quick-release structure 27 on the side near the opening of the accessory slot 11, and the accessory 20 is detachably electrically connected to the robotic arm through the quick-release structure 27.

[0151] In one possible implementation, a power connector 26 is provided on the quick-release structure 27, and the accessory 20 is electrically connected to the robotic arm through the power connector 26.

[0152] The quick-release structure 27, such as a buckle, a rotary lock, or a magnetic lock, can provide stable and continuous mechanical pressure when locked. This pressure directly ensures a tight and reliable contact between the pins and sockets of the connector 26, effectively preventing power disconnection, signal interruption, or arcing caused by vibration or slight movement, thus ensuring the reliability and safety of the electrical connection. The rigid connection of the quick-release structure 27, as the main load-bearing structure, bears all the torque and stress when the robotic arm operates the accessory 20, while the precision electrical contacts are only responsible for transmitting electrical energy and signals and are not affected by external forces, thereby extending the service life of the connector 26.

[0153] At the same time, the system can clearly determine whether the electrical connection has been safely established by the locking state of the quick-release structure 27 (for example, by adding a micro switch). The system only allows power to be supplied after mechanical locking is confirmed, providing a safety interlock mechanism.

[0154] The quick-release structure 27 is located on the side close to the opening of the accessory slot 11, which means that this is the area where the robotic arm first contacts and last separates from the accessory 20. This facilitates the gripping of the end effector of the robotic arm. Meanwhile, the quick-release structure 27 is concentrated at the edge, leaving layout space for the functional components (such as motors and air ducts) inside the accessory 20, which helps the accessory 20 to achieve a more compact and efficient design.

[0155] In one possible implementation, the housing 10 is provided with an unlocking structure 17, which is used to cooperate with the quick-release structure 27 to remove the accessory 20 inserted into the accessory slot 11 from the robotic arm.

[0156] In one possible implementation, the unlocking structure 17 is provided with a pressing part on the side facing the accessory slot 11. The quick-release structure 27 connecting the robotic arm and the accessory 20 is provided with a locking button for unlocking.

[0157] When the robotic arm enters the accessory slot 11 without the accessory 20 installed, the robotic arm is connected to the accessory 20 through the quick-release structure 27. When the robotic arm enters the accessory slot 11 with the accessory 20 installed, the pressing part of the unlocking structure 17 touches the locking button of the quick-release structure 27 to unlock the robotic arm from the accessory 20.

[0158] The setting of the unlocking structure 17 makes the action of removing the accessory 20 as automatic as the action of grasping the accessory 20, thus completing the closed loop of operation. By setting the quick-release structure 27 on the accessory 20 and the unlocking structure 17 in the accessory slot 11, when picking up the accessory, the robotic arm only needs to align with the quick-release structure 27 on the accessory 20 to complete the connection between the robotic arm and the accessory 20; when removing the accessory, the robotic arm only needs to align the accessory 20 with the corresponding accessory slot 11 and put it in, and the unlocking structure 17 in the accessory slot 11 will automatically trigger the quick-release structure 27 on the accessory 20 to remove the accessory 20, thus realizing the fully automated closed loop of the process from "grabbing-using-returning and removing".

[0159] At the same time, the function of the unlocking structure 17, which requires a certain amount of force and a complex mechanical structure, is separated from the robotic arm and transferred to the extension device 100. The robotic arm can be designed to be very simple, without the need to integrate bulky or sophisticated unlocking instructions (pages 12 / 17, CN 121549690 A), reducing the load, complexity, and failure rate of the robotic arm. During operation, the unlocking force is provided only by the fixed unlocking structure 17, fundamentally preventing the risk of the robotic arm accidentally colliding with other objects during movement or cleaning, triggering the unlock and causing the accessory 20 to fall off.

[0160] The cooperation between the unlocking structure 17 and the quick-release structure 27 is itself a positioning process, ensuring that the accessory 20 is placed in the predetermined position of the accessory slot 11 each time it is removed, without tilting or falling off, ensuring the standardization and stability of the accessory 20 storage.

[0161] In one possible implementation, an accessory compartment 18 is movably provided in the housing 10, and the accessory slot 11 is provided on the accessory compartment 18.

[0162] Since the robotic arm and the accessory 20 are detachably mechanically connected to achieve electrical connection, the required docking accuracy is very high; if there is a slight deviation, the connection will fail. By using the accessory compartment 18 movable within the housing 10, the accessory slot 11 for placing the accessory 20 can float within the housing 10. Distance errors during the docking process of the robotic arm can be automatically corrected by the floating accessory slot 11 to achieve precise docking between the robotic arm and the accessory 20, thereby enabling rapid replacement of the accessory 20. The movement of the accessory compartment 18 compensates for the limitations of the robotic arm's working range and precision, reducing the requirements for the length and degrees of freedom of the robotic arm itself, thus allowing for a simpler, lower-cost, and more reliable robotic arm structure.

[0163] If the accessory compartment 18 or its unlocking structure 17 or sensor malfunctions, it can be repaired or replaced as an independent module without replacing the entire housing 10, making maintenance easy. Simultaneously, placing the accessory slot 11 within a separate accessory compartment 18, as a relatively enclosed movable unit, helps confine dust, hair, and other contaminants to a smaller area, facilitating cleaning and preventing contamination of other precision components inside the extension device 100.

[0164] In one possible implementation, the accessory compartment 18 includes an elastic portion 181 and at least one compartment portion 182 disposed on the elastic portion 181, with the accessory slot 11 disposed on the compartment portion 182, and the elastic portion 181 connected to the housing 10.

[0165] In one possible implementation, the elastic portion 181 is made of a soft rubber structure, allowing the accessory compartment 18 to float freely within the housing 10.

[0166] When the robotic arm grasps or returns the accessory 20, it is difficult to achieve 100% alignment with the center every time. Rigid connections can lead to impacts, jamming, or wear of the positioning pins. The elastic portion 181 (such as a spring, sheet metal, or silicone pillar) can provide a buffer stroke to absorb the impact force and positional deviation generated during docking, preventing hard collisions that could damage the accessory 20, the robotic arm, or the accessory slot 11. The elastic support of the elastic portion 181 makes the compartment portion 182 a "floating platform". At the instant the robotic arm contacts the accessory 20, the cabin 182 can make a slight translation or deflection within the range of the elastic part 181, automatically adapting to the actual position of the robotic arm and guiding the accessory 20 smoothly into the correct connection or storage posture. The elasticity of the elastic part 181 can also make the cabin 182 automatically reset. Through buffering and self-adaptation, the mechanical stress borne by the robotic arm, accessory 20, quick-release structure 27 and accessory slot 11 itself is greatly reduced, effectively preventing problems such as cracking of plastic parts and fatigue of metal parts caused by repeated impacts and forced alignment.

[0167] When the robotic arm performs the "return" action, it does not need to pursue an absolutely precise and unique point. As long as the accessory 20 is placed in the accessory slot 11, no precise positioning is required. The accessory 20 entering the accessory slot 11 will apply a certain deformation force to the elastic part 181. Under the elastic force of the elastic part 181, the accessory slot 11 in the cabin 182 will move adaptively towards the accessory 20. The system can complete the final precise positioning by itself by relying on the mechanical structure. This reduces the requirements for the motion control algorithm of the robotic arm, making its movements faster and programming simpler.

[0168] The internal structural components of the extension device 100 will vibrate during operation. The elastic part 181 can act as a vibration isolation to prevent these vibrations from being directly transmitted to the cabin part 182 and the precision parts 20 stored therein, especially the parts 20 with electronic components, thereby improving the durability of the entire system. Specification 13 / 17 pages 15 CN 121549690 A

[0169] In one possible implementation, the housing 10 is also provided with a fixing rope 183. One end of the fixing rope 183 is connected to the housing 10, and the other end is connected to the cabin part 182.

[0170] In one possible implementation, the fixing rope 183 is made of steel wire.

[0171] The cabin part 182 is fixed in the housing 10 by the cooperation of the elastic part 181 and the fixing rope 183, so that the cabin part 182 is fixed in the housing 10.The interior of body 10 can float freely, and the elastic part 181 allows the cabin part 182 to automatically return to its original position, while the fixing rope 183 provides reliable movement restriction.

[0172] After long-term use, the connection point of the elastic part 181 may be at risk of fatigue fracture. Alternatively, the cabin part 182 may be ejected when subjected to an unexpected and huge external force impact. The fixing rope 183, as an independent physical restraint, can firmly hold the cabin part 182 even in the above extreme situations, preventing it from completely detaching from the shell 10, and avoiding damage to the cabin part 182 and the accessories 20 placed inside, or even injuring the user.

[0173] At the same time, although the movable accessory compartment 18 has the above advantages, an excessively large range of motion can cause certain problems. For example, the accessory slot 11 moves under the elastic force of the elastic part 181, causing the accessory 20 placed there to move around. If the range of motion is large, it will affect the docking between the robotic arm and the accessory 20, thereby interfering with the implementation of the pick-and-place function. At the same time, it may also cause the cable of the accessory 20 placed in the compartment 182 to be excessively pulled, or the accessory 20 to interfere with or collide with the housing 10. The length of the fixing rope 183 precisely limits the maximum range of motion of the compartment 182 on the elastic part 181, ensuring that it always moves within a preset, safe area. By limiting the range of motion, it is ensured that the robotic arm can always reach the accessory slot 11 on the compartment 182, and it is also ensured that the compartment 182 can accurately return to the initial position when it is retracted, without getting stuck or unable to reset due to excessive offset.

[0174] In one possible implementation, the accessory slot 11 includes a cleaning slot 113. The extension device 100 also includes a drying fan 40. The housing 10 is provided with a drying air duct 19, which is connected to the cleaning tank 113. The drying fan 40 is located at the air inlet of the drying air duct 19.

[0175] If the used wet cloth or cleaning brush head and other accessories 20 are directly stored in the sealed accessory tank 11, they will remain in a damp state for a long time, becoming a breeding ground for mold and bacteria, producing odors and causing hygiene problems. By setting up the cleaning tank 113 and connecting the drying air duct 19 after the cleaning tank 113, the drying fan 40 can force air into the cleaning tank 113, which can be room temperature air or heated warm air, to actively and quickly evaporate the residual moisture on the accessories 20 and restore them to a dry state. This eliminates the conditions for the growth of microorganisms, ensures the hygiene of the accessories 20 themselves, and thus will not cause secondary pollution to the home environment when used next time.

[0176] At the same time, some accessories 20 may contain metal parts or electronic components, such as bearings, quick-release structures 27, circuit boards, etc. A consistently humid environment can accelerate the corrosion of components and short circuits in circuits. By keeping the accessory 20 dry, its service life can be effectively extended and its electrical safety ensured.

[0177] Furthermore, by directly integrating drying structures such as the drying fan 40 into the extension device 100, users do not need to manually air dry the components.Accessory 20 does not need to be left to air dry. After cleaning and storage, the system will automatically start the drying program, so it can be used directly when needed, improving the user experience.

[0178] The extension device 100 provided in this application embodiment includes a housing 10 and accessory 20. The housing 10 is connected to the base station of the self-cleaning device, and the housing 10 is provided with at least one accessory slot 11. Accessory 20 is detachably disposed in the corresponding accessory slot 11. Accessory 20 is used to replace the robotic arm on the self-cleaning device to achieve different functions.

[0179] By providing at least one accessory slot 11 on the housing 10 and detachably disposing of accessory 20 in the corresponding accessory slot 11, the robotic arm of the self-cleaning device can achieve multiple cleaning functions as needed by replacing different accessories 20. This flexibility allows the device to adapt to different cleaning tasks. By replacing different accessories 20 with a robotic arm, the single-function limitation of traditional sweepers and simply adding robotic arms is overcome, as described on pages 14 / 17 of the manual (CN 121549690 A). A single device can switch between multiple cleaning modes, expanding the functionality of the robotic arm and improving its utilization. The self-cleaning device can flexibly adjust according to different cleaning needs and environmental conditions, adapting to various usage scenarios, meeting the personalized needs of different users, and improving the user experience.

[0180] This application also provides a cleaning system, including a self-cleaning device, a base station, and the aforementioned expansion device 100.

[0181] The foregoing content can be better understood in accordance with the following clauses:

[0182] Clause A1, an extension device for use in a self-cleaning device, the extension device comprising:

[0183] a housing 10, the housing 10 being connected to a base station of the self-cleaning device, the housing 10 being provided with at least one accessory slot 11;

[0184] an accessory 20, the accessory 20 being detachably disposed in a corresponding accessory slot 11, the accessory 20 being used for gripping by a gripper of a robotic arm on the self-cleaning device.

[0185] Clause A2, the extension device as described in Clause A1, wherein the accessory 20 comprises a clamping part 21 and a functional part 22, the functional part 22 being connected to the clamping part 21 and located on the side of the clamping part 21 away from the opening of the accessory slot 11, the clamping part 21 being used for gripping by the gripper.

[0186] Clause A3, the extension device as described in Clause A2, wherein the clamping part 21 is provided with a clamping groove 211, the clamping groove 211 being for the robotic arm to extend into for clamping.

[0187] Clause A4, the extension device as described in Clause A3, wherein the groove wall of the clamping groove 211 is provided with an engaging member 212, the engaging member 212 being used to abut against the gripper to achieve clamping of the accessory 20.

[0188] Clause A5, the extension device as described in any one of Clauses A1-4, wherein the accessory 20 includes a brush accessory 23,At least one of cleaning accessory 24 and vacuuming accessory 25.

[0189] Clause A6, the extension device as described in Clause A5, wherein the housing 10 is provided with a dust channel communicating with the base station, the accessory slot 11 corresponding to the vacuuming accessory 25 is provided with a dust collection opening communicating with the dust channel, and the vacuuming accessory 25 is provided with a dust collection port communicating with the dust collection opening.

[0190] Clause A7, the extension device as described in Clause A5, wherein the vacuuming accessory 25 is provided with a charging electrode 251, and the accessory slot 11 corresponding to the vacuuming accessory 25 is provided with a charging component 12, the charging component 12 being electrically connected to the charging electrode 251 to charge the vacuuming accessory 25.

[0191] Clause A8, the extension device as described in Clause A5, wherein the vacuuming accessory 25 includes a communication unit communicating with the self-cleaning device.

[0192] Clause A9, the expansion device as described in Clause A5, wherein the vacuuming accessory 25 includes a manual switch 252.

[0193] Clause A10, the expansion device as described in Clause A5, wherein the vacuuming accessory 25 is provided with a charging interface 253.

[0194] Clause A11, the expansion device as described in any of Clauses A1-4, wherein the housing 10 is detachably connected to the base station.

[0195] Clause A12, the expansion device as described in Clause A11, wherein the housing 10 is provided with a connector 13, the connector 13 being provided with a snap-fit ​​structure 131 for snap-fitting with the base station.

[0196] Clause A13, the expansion device as described in Clause A12, wherein the connector 13 is rotatably disposed on the housing 10 to conceal the snap-fit ​​structure 131 when the housing 10 is separated from the base station.

[0197] Clause A14, the expansion device as described in any of Clauses A1-4, wherein the housing 10 is fixedly connected to the base station.

[0198] Clause A15, the extension device as described in any one of Clauses A1-4, wherein the housing 10 is electrically connected to the base station. Specification 15 / 17 pages 17 CN 121549690 A

[0199] Clause A16, the extension device as described in Clause A15, wherein the housing 10 is provided with an electrical connector for electrical connection to the base station.

[0200] Clause A17, the extension device as described in Clause A16, wherein the electrical connector includes at least one of a spring electrode 14 and a wire.

[0201] Clause A18, the extension device as described in Clause A17, wherein the spring electrode 14 includes an elastic element 141 and an electrical connector 142, the elastic element 141 abutting against the electrical connector 142 to electrically connect the electrical connector 142 to the base station when the housing 10 is connected to the base station.

[0202] Clause A19, the expansion device as described in Clause A18, wherein the spring electrode 14 further includes a positioning member 143, the positioning member 143 being used to position the electrical connector 142 when the housing 10 is connected to the base station, so that the electrical connector 142 is electrically connected to the base station.

[0203] Clause A20, the expansion device as described in Clause A19, wherein the positioning member 143 includes a magnet, the magnet being magnetically connected to the base station to position the electrical connector 142.

[0204] Clause A21, the expansion device as described in any one of Clauses A1-4, wherein the accessory slots 11 include a plurality of slots, the plurality of accessory slots 11 being located on the same side of the housing 10.

[0205] Clause A22, the expansion device as described in Clause A21, wherein the plurality of accessory slots 11 are arranged sequentially in a vertical direction.

[0206] Clause A23, the expansion device as described in any of Clauses A1-4, wherein the housing 10 further comprises a storage cavity 15, the storage cavity 15 being disposed at the top of the housing 10.

[0207] Embodiments of this application also provide a self-cleaning device, including a base station and the above-described expansion device 100.

[0208] It should be noted that the terms "an embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when describing a specific feature, structure, or characteristic in conjunction with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly or not, is within the knowledge of those skilled in the art.

[0209] Generally, terms should be understood at least in part by their use in the context. For example, at least in part depending on the context, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the sense of a singular, or may be used to describe a combination of features, structures, or characteristics in the sense of a plural. Similarly, at least in part depending on the context, terms such as “a” or “the” can also be understood to convey a singular or plural usage.

[0210] It should be readily understood that “on,” “above,” and “above” in this application should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “above” means not only “above something” or “above,” but also “above something” or “above” without an intermediate feature or layer therebetween (i.e., directly on something).

[0211] Furthermore, spatially relative terms such as “below,” “below,” “below,” etc., may be used herein for ease of explanation."Above," "above," etc., are used to describe the relationship of an element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to include different orientations of a device in use or operation other than those shown in the figures. Devices may have other orientations (rotated 90° or in other orientations), and spatially relative descriptive terms used herein may be interpreted accordingly.

[0212] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. Instruction manual, page 17 / 17, 19 CN 121549690 A, Figure 1; Instruction manual, Figure 1 / 11, page 20 CN 121549690 A, Figure 2; Instruction manual, Figure 2 / 11, page 21 CN 121549690 A, Figure 3; Instruction manual, Figure 3 / 11, page 22 CN 121549690 A, Figure 4; Instruction manual, Figure 4 / 11, page 23 CN 121549690 A, Figure 5; Instruction manual, Figure 5 / 11, page 24 CN 121549690 A, Figure 6; Instruction manual, Figure 6 / 11, page 25 CN 121549690 A, Figure 7; Instruction manual, Figure 7 / 11, page 26 CN 121549690 A, Figure 8; Instruction manual, Figure 8 / 11, page 27 CN 121549690 A, Figure 9; Instruction manual, Figure 9 / 11, page 28 CN 121549690 A, Figure 10 Instruction Manual Figures 10 / 11, Page 29, CN 121549690 A Figure 11 Instruction Manual Figures 11 / 11, Page 30, CN 121549690 A EXPANSION DEVICE AND CLEANING SYSTEM Abstract The present application relates to the technical field of cleaning, and in particular, to an expansion device and a cleaning system. The expansion device includesa housing connected to a base station of a self-cleaning device, wherein the housing is provided with at least one accessory slot; and accessories detachably disposed in the corresponding accessory slots. The accessories are configured to be replaced by a mechanical arm on the self-cleaning device to realize different functions. By arranging the accessory slots on the housing and disposing the accessories in a detachable manner in the corresponding accessory slots, the mechanical arm can replace different accessories as required to achieve multiple cleaning functions, so that the device can adapt to diverse cleaning tasks. Replacing different accessories through the mechanical arm breaks through the single-function limitation of traditional sweeping robots and simple devices with additionally installed mechanical arms, enabling a single device to switch between multiple cleaning modes. The self-cleaning device can flexibly adjust according to different cleaning requirements andenvironmental conditions, adapt to various application scenarios, meet personalized needs of different users, and effectively improve user experience. 10 211 212 253 13 14 100 20

Claims

1. An extension device for use in a self-cleaning equipment, characterized in that, The expansion device includes: The housing (10) is provided with at least one accessory slot (11) and the housing (10) is provided with an unlocking structure (17). The accessory (20) is detachably disposed in the corresponding accessory slot (11). The accessory (20) has a quick-release structure (27) on the side near the opening of the accessory slot (11). The unlocking structure (17) is used to cooperate with the quick-release structure (27) to remove the accessory (20) inserted into the accessory slot (11) and position it in a preset position in the accessory slot (11).

2. The extension device according to claim 1, characterized in that, The unlocking structure (17) has a pressing part on the side facing the accessory slot (11), and the quick-release structure (27) is provided with a locking button for unlocking.

3. The expansion device according to claim 1, characterized in that, The accessory (20) is detachably electrically connected to the robotic arm on the self-cleaning device via the quick-release structure (27).

4. The extension device according to claim 3, characterized in that, The accessory (20) includes at least one of a brush accessory (23), a cleaning accessory (24), and a vacuuming accessory (25).

5. The extension device according to claim 4, characterized in that, The vacuum cleaner accessory (25) is provided with a charging electrode (251), and a charging component (12) is provided in the accessory slot (11) corresponding to the vacuum cleaner accessory (25). The charging component (12) is used to electrically connect with the charging electrode (251) to charge the vacuum cleaner accessory (25).

6. The extension device according to claim 4, characterized in that, The vacuuming accessory (25) has a power connector (26) on the side near the opening of the accessory slot (11), and the power connector (26) is used to electrically connect to the power supply on the robotic arm.

7. The extension device according to claim 3, characterized in that, The quick-release structure (27) is provided with an electrical connector (26), and the accessory (20) is electrically connected to the robotic arm through the electrical connector (26).

8. The extension device according to claim 1, characterized in that, The accessory slots (11) include multiple slots, which are located on the same side of the housing (10) and are arranged sequentially in the vertical direction.

9. The extension device according to claim 1, characterized in that, The housing (10) is provided with a component compartment (18), and the component slot (11) is provided on the component compartment (18).

10. The extension device according to claim 9, characterized in that, The accessory compartment (18) includes an elastic part (181) and at least one compartment part (182) disposed on the elastic part (181), the accessory slot (11) is disposed on the compartment part (182), and the elastic part (181) is connected to the housing (10).

11. The extension device according to claim 10, characterized in that, The shell (10) is also provided with a fixing rope (183), one end of which is connected to the shell (10) and the other end is connected to the cabin part (182).

12. The extension device according to claim 1, characterized in that, The accessory slot (11) includes a cleaning slot (113), the expansion device (100) also includes a drying fan (40), the housing (10) is provided with a drying air duct (19), the drying air duct (19) is connected to the cleaning slot (113), and the drying fan (40) is located at the air inlet end of the drying air duct (19).

13. A cleaning system, characterized in that, Includes a self-cleaning device and an extension device (100) as described in any one of claims 1-12.

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