Detachable motor driving device

Abstract

The detachable motor driving device comprises a fixed cylinder, an electric driving module, a transmission output piece and two clamping pieces, the electric driving module is installed in the fixed cylinder, the rotating output end of the electric driving module is in transmission connection with the transmission output piece, the rotating output end of the electric driving module is in transmission connection with the transmission output piece, and the two clamping pieces are in transmission connection with the transmission output piece. The transmission output piece is used for driving a driven device with a transmission receiving piece to rotate, the two clamping pieces are arranged at the two ends of the fixing barrel respectively, and the whole clamping piece has an elastic stroke stretching out and drawing back in the axial direction of the fixing barrel and is used for being detachably connected with a cleaner shell. According to the technical scheme, the disassembly and assembly steps of the motor driving device of the cleaning machine are well simplified, and the use and maintenance convenience of consumers is improved.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202211296809.4 entitled "A Detachable Motor Drive Device and Cleaner", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaners, and more particularly to a detachable motor drive device for cleaners. Background Technology

[0003] With the development of modern technology, there are now many different floor cleaning tools available, including brooms, mops, floor scrubbers, and vacuum cleaners. Vacuum cleaners are a very common floor cleaning tool, but they are very noisy, making people feel uncomfortable. Moreover, their method of cleaning up debris is simply to suck it into a dustbin.

[0004] Brooms, mops, and floor scrubbers belong to the category of sweeping and mopping cleaning tools. They generally have a fixed cleaning section, and their cleaning ability depends on the dirt-removing and suction capabilities of that section. Because this cleaning section becomes contaminated once it comes into contact with a dirty floor, its cleaning ability gradually weakens during subsequent cleaning, especially when cleaning large areas continuously, making thorough cleaning impossible. Therefore, these cleaning products must be rinsed frequently, which is quite inconvenient. Current cleaning technologies, such as robotic vacuum cleaners, use roller motors as the roller drive component.

[0005] Floor scrubbers use water to wet the cleaning rollers, which then sweep and mop the floor. Compared to vacuum cleaners, they have the advantage of low noise, and compared to traditional mops, they can clean the cleaning rollers in real time. As a result, they are becoming increasingly accepted by ordinary consumers.

[0006] Floor scrubbers primarily clean floors by driving a motor to rotate a drum. The motor is fixedly connected to a side panel of the scrubber head, and an electrical wire is located at the end where the motor is fixed to the side panel. This wire connects to the power supply unit and is electrically connected to the wiring inside the side panel, thus driving the motor. This design means that if the scrubber malfunctions due to a motor problem, the user cannot repair it themselves and must return the entire machine to the factory, increasing after-sales costs. Furthermore, because the motor is electrically connected to the internal wiring of the scrubber body, replacing the motor requires cutting the electrical wire and removing the screws before disassembling the motor. Rewiring and reassembly are also necessary, increasing the workload for maintenance personnel and hindering long-term proper maintenance of the product.

[0007] On the other hand, even to reduce waiting time during factory repairs, after receiving the spare motor, when the drum motor needs to be replaced, the user needs to remove the drum motor from the cleaning machine frame by screws and other fixing structures, repair, clean, or replace the drum, and then reinstall the drum motor following the aforementioned process. The entire disassembly process is quite cumbersome and the disassembly and assembly experience is poor. Similarly, when installing the drum on the drum motor, existing floor scrubbers on the market require pressing a button on one end of the drum assembly to slide it out from one side of the cleaning head, then rotating it around the shaft at the other end of the cleaning head along the motor, and then sliding it out along the direction of the motor's drum wall. The disassembly process is very cumbersome and requires operation in a specific direction towards the floor scrubber's cleaning head, making it very inconvenient for users to replace or maintain the machine themselves. Summary of the Invention

[0008] The main purpose of this application is to provide a detachable motor drive device and cleaner, which aims to simplify the disassembly and assembly steps of the cleaner's motor drive device and improve the convenience of use for consumers.

[0009] To achieve the above objectives, the present invention proposes a detachable motor drive device for a cleaner, comprising:

[0010] The electric drive module has a rotation output end, which drives the driven device to rotate to wipe the surface to be cleaned;

[0011] A mounting sleeve is used to install the electric drive module;

[0012] The transmission output component is connected to the rotating output end via a transmission connection.

[0013] Two snap-fit ​​connectors are located at both ends of the fixed cylinder and can be detachably connected to the machine housing;

[0014] The detachable motor drive unit has an elastic stroke that extends and retracts along the axial direction of the fixed cylinder, so as to enable the detachable motor drive unit to be easily removed from the housing.

[0015] In one or more alternative embodiments, both ends of the detachable motor drive have elastic travel that extends and retracts along the axial direction of the fixed cylinder or in a direction parallel to the axial direction of the fixed cylinder.

[0016] In one or more alternative embodiments, forces are simultaneously applied to the two snap-fit ​​members in opposite directions along the axial direction of the fixed cylinder, causing both snap-fit ​​members to retract as a whole along the axial direction of the fixed cylinder.

[0017] In one or more alternative embodiments, the driven device has a transmission receiver and a transmission output that cooperate with each other.

[0018] In one or more alternative embodiments, the transmission receiver and transmission output are coupled as gears or friction wheels.

[0019] In one or more alternative embodiments, the transmission output component is a toothed component rotatably mounted on one end of a fixed cylinder, and the transmission receiving component is an annular toothed slot component that mates with the toothed component.

[0020] In one or more alternative embodiments, the locking member includes a gear shaft and at least one locking piece disposed on the outer peripheral surface of the gear shaft.

[0021] In one or more alternative embodiments, a plurality of toothed plates are evenly distributed circumferentially along the tooth axis.

[0022] In one or more alternative embodiments, the gear shaft has a uniform diameter or is arranged in a stepped shaft shape.

[0023] In one or more alternative embodiments, the driven device is a cleaning cylinder sleeved on the outside of the fixed cylinder, and a transmission receiver is provided on the bushing of the cleaning cylinder.

[0024] In one or more alternative embodiments, the transmission output component is equipped with a limiting sleeve, which is installed at the end of the locking tooth component away from the electric drive module, and is used to limit the driven device.

[0025] In one or more alternative embodiments, the limiting sleeve may be screwed onto or snapped onto the locking teeth.

[0026] In one or more alternative embodiments, after the driven device is removed together with the detachable motor drive device, the driven device can be unlocked and removed from the detachable motor drive device after the limiting sleeve is removed.

[0027] In one or more alternative embodiments, the transmission receiver has a groove corresponding to the toothed plate, and a gap is provided between the toothed plate and the groove.

[0028] In one or more alternative embodiments, one side of the toothed plate is provided with a Velcro structure for limiting the driven device, and the slot is also provided with a Velcro structure. When the transmission receiving component is installed in place along the axial direction of the toothed plate, rotating it a certain angle along the direction of the gap will allow the Velcro structure of the toothed plate to stick together with the Velcro structure of the slot.

[0029] When you need to remove the driven device, simply rotate the driven device against the direction of the gap to separate the hook and loop structure of the clip from the hook and loop structure of the slot, and then slowly remove the driven device along the other side of the clip where there is no hook and loop structure.

[0030] In one or more alternative embodiments, the end of the toothed plate is provided with a barb structure for limiting the driven device. When the transmission receiving component is installed in place along the axial direction of the toothed plate, it can be rotated at a certain angle along the direction of the barb structure to limit the space of the axial movement of the driven device.

[0031] When it is necessary to remove the driven device, simply rotate the driven device in the opposite direction of the gap to separate the barb structure of the locking tooth from the groove, and slowly remove the driven device along the other side of the locking tooth where there is no barb structure.

[0032] In one or more alternative embodiments, one of the two snap-fit ​​components is a fixed insert, the inner end of which is mounted on a fixed cylinder or on a transmission output component, and the outer end of which extends out of the fixed cylinder to cooperate with the housing to achieve a detachable connection.

[0033] In one or more alternative embodiments, the outer end of the fixed insert is transitionally fitted with the inner ring of the bearing or the inner ring of the bushing of the housing to achieve a detachable rotatable connection.

[0034] In one or more alternative embodiments, at least one of the two snap-fit ​​connectors is provided with at least two externally electrically connected conductive parts that are electrically connected to the electric drive module. The snap-fit ​​connector snaps onto the cleaner housing while simultaneously providing power to the electric drive module.

[0035] In one or more alternative embodiments, one of the two snap-fit ​​components is a fixed snap-fit ​​cantilever, the cantilever end of which is elastically snapped into the housing, and the other end of which is mounted on a fixed cylinder.

[0036] In one or more alternative embodiments, the other of the two locking components is a rotating locking cantilever that can rotate relative to the transmission output component. The cantilever end of the rotating locking cantilever is elastically locked to the housing, and the other end of the rotating locking cantilever is rotatably connected to the transmission output component.

[0037] In one or more alternative embodiments, the rotating snap-fit ​​cantilever has a built-in bearing or bushing, and the shaft of the transmission output component is transitionally fitted with the bearing or bushing.

[0038] In one or more alternative embodiments, the rotating snap-fit ​​cantilever is further snapped with a snap ring for a stop bearing or bushing.

[0039] In one or more alternative embodiments, one end of the conductive element is electrically connected to the power input terminal of the electric drive module, and the other end of the conductive element is used to be electrically connected to the power supply when the corresponding snap-fit ​​component is detachably connected to the housing.

[0040] In one or more alternative embodiments, one of the two snap-fit ​​components includes a socket and a movable cylinder that telescopically and elastically engages with the socket. The socket is fixedly mounted on the fixed cylinder, and the end of the movable cylinder facing away from the socket is used to engage with the insertion hole of the housing to achieve a detachable connection.

[0041] In one or more alternative embodiments, the movable cylinder has a metal contact portion, one end of which is electrically connected to the power input terminal of the electric drive module, and the other end of which is used to be electrically connected to the power supply when the movable cylinder is detachably connected to the housing.

[0042] In one or more alternative embodiments, one of the two snap-fit ​​components includes a resilient insert, one end of which snaps onto the outer end of the transmission output component and has a movable stroke along the axial direction of the fixed cylinder, and the other end of which is used to rotatably engage with the insertion hole of the housing to achieve a detachable connection.

[0043] In one or more alternative embodiments, the electric drive module includes a drive motor and a transmission component. The output end of the drive motor is connected to the input end of the transmission component, and the output end of the transmission component is connected to the transmission output component. A rechargeable battery is installed inside the fixed cylinder, and a wireless charging receiving coil is installed on the outer or inner wall of the fixed cylinder. The rechargeable battery can be charged in conjunction with the wireless charging transmitting coil of the charging base. No wiring harness for connecting the electric drive module is installed inside the two clips.

[0044] In a second aspect, the present invention also provides a cleaner, including a detachable motor drive device and a cleaning roller driven therefrom, wherein the detachable motor drive device is the detachable motor drive device as described in the first aspect.

[0045] Compared with the prior art, the technical effects and advantages of this application are as follows:

[0046] The electric drive module is housed within the sleeve. It is electrically connected to an external power source and drive motor via the energizing part of the first fixing component, thereby driving the electric drive motor to operate and rotating the roller to achieve cleaning. When the motor fails, it is only necessary to separate the first and second fixing components from the side plate, remove the sleeve and roller together, remove the roller from the sleeve, and pull the fixing components out from both ends of the sleeve to remove the entire drive motor for replacement. There is no need to return it to the factory for repair or to perform complicated internal repairs such as cutting the wire connecting the motor to the side plate and removing screws. This solution has a simple structure and makes motor disassembly and maintenance more convenient. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0048] Figure 1 A simplified diagram illustrating the installation and removal of a detachable motor drive unit;

[0049] Figure 2This is a schematic diagram illustrating the process of installing the driven device in Embodiment 1 of a detachable motor drive device.

[0050] Figure 3 A three-dimensional schematic diagram of a detachable motor drive unit after the driven device has been installed.

[0051] Figure 4 This is a schematic cross-sectional view of the driven device;

[0052] Figure 5 A schematic diagram illustrating the process of installing the driven device in Embodiment 2 of the detachable motor drive device;

[0053] Figure 6 A simplified cross-sectional view of the detachable motor drive device, as shown in Embodiment 2, mounted on the cleaner housing;

[0054] Figure 7 This is a schematic diagram of the cooperation structure between the transmission output component and the driven device.

[0055] Figure 8 A schematic diagram of another embodiment of the structure in which the transmission output component and the driven device cooperate;

[0056] Figure 9 This is a three-dimensional schematic diagram of a snap-fit ​​component in a detachable motor drive device, according to Embodiment 1.

[0057] Figure 10 for Figure 9 Planar view of the middle card connector from direction A;

[0058] Figure 11 This is a three-dimensional schematic diagram of the snap-fit ​​component in the detachable motor drive device, according to Embodiment 2.

[0059] Figure 12 for Figure 11 Planar view of the connector in the middle card;

[0060] Figure 13 for Figure 6 Enlarged view of a section at point C;

[0061] Figure 14 A schematic diagram of another embodiment of the structure in which the transmission output component and the driven device cooperate;

[0062] Figure 15 A simplified cross-sectional view of the detachable motor drive device, as shown in Embodiment 1, mounted on the cleaner housing.

[0063] Figure 16 This is a cross-sectional schematic diagram of Embodiment 3 of the detachable motor drive device;

[0064] Figure 17 A simplified cross-sectional view of the detachable motor drive device, as described in Embodiment 4, mounted on the cleaner housing.

[0065] Figure 18 This is a cross-sectional schematic diagram of Embodiment 4 of the detachable motor drive device;

[0066] Figure 19 This is a cross-sectional schematic diagram of Embodiment 5 of the detachable motor drive device;

[0067] Figure 20 This is a cross-sectional schematic diagram of Embodiment Six of the detachable motor drive device;

[0068] Figure 21 This is a cross-sectional schematic diagram of Embodiment Seven of the detachable motor drive device;

[0069] Figure 22 This is a cross-sectional schematic diagram of Embodiment 8 of the detachable motor drive device;

[0070] In the attached diagram, the components represented by each number are as follows:

[0071] 100. Detachable motor drive unit; 200. Driven device; 201. Transmission receiver; 300. Cleaner housing; 301. Bearing (sleeve);

[0072] 1. Fixed cylinder; 2. Electric drive module; 21. Drive motor; 22. Speed ​​change component; 3. Transmission output component; 3a. Gear clamping component; 3a1. Gear shaft; 3a2. Gear clamping plate; 3a3. Hook structure;

[0073] 4. Snap-fit ​​component; 4a. Fixed insert; 4b. Fixed snap-fit ​​cantilever; 4b1. Flexible sleeve base with cantilever; 4b2. Electrical connection structure; 4b21. Metal electrical connection part; 4c. Rotating snap-fit ​​cantilever; 4d1. Insert base; 4d2. Movable sleeve; 4d21. Metal electrical connection part; 4d3. Flexible contact; 4e. Flexible insert; 4f. Fixed insert; 4g. Fixed snap-fit ​​cantilever; f. Conductive component; 41. Bearing (sleeve); 42. Flat bearing (wear-resistant gasket);

[0074] 5. Limiting sleeve.

[0075] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0076] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0077] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0078] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise expressly defined; "at least one" means one or more.

[0079] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood as appropriate according to the specific circumstances.

[0080] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the control circuits of the controllers, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the control process of the software or programs involved, this pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0081] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0082] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0083] When the existing cleaning machine needs to replace the drum motor or install a drum motor on the drum motor, the user needs to remove the drum motor from the fixing structure such as screws on the cleaning appliance frame, cut the motor's power cord, repair, clean or replace the drum, and then reinstall the drum motor according to the above process, and resolder the power cord. The whole disassembly process is quite cumbersome and the disassembly and assembly experience is poor.

[0084] To address the aforementioned problems, this invention proposes a detachable motor drive device 100 for a cleaner. See the embodiments of this invention for details. Figure 1 , Figure 6 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 The detachable motor drive device 100 includes: a fixed cylinder 1, an electric drive module 2, a transmission output component 3, and two snap-fit ​​components 4. The electric drive module 2 is installed inside the fixed cylinder 1. The rotation output end of the electric drive module 2 is connected to the transmission output component 3. The transmission output component 3 is used to drive the driven device 200 with the transmission receiving component 201 to rotate. The two snap-fit ​​components 4 are respectively disposed at both ends of the fixed cylinder 1, and the whole has an elastic stroke that can extend and retract along the axial direction of the fixed cylinder 1, so as to be detachably connected to the cleaner housing 300.

[0085] It should be noted that the detachable connection can be a plug-in connection or a snap-fit ​​connection. When the detachable connection is a plug-in connection, the snap-fit ​​member 4 can be configured as a telescopic cylinder and inserted into the insertion hole of the cleaner housing 300 to achieve an elastic travel of the two snap-fit ​​members 4 as a whole along the axial direction of the fixed cylinder 1. The elastic snap-fit ​​connection can be achieved by configuring the snap-fit ​​member 4 as a cantilever buckle that cooperates with the slot of the cleaner housing 300 to achieve an elastic travel of the two snap-fit ​​members 4 as a whole along the axial direction of the fixed cylinder 1. The two snap-fit ​​members 4 can be plug-in or snap-fit ​​simultaneously, or they can be plug-in and snap-fit ​​separately to achieve an elastic travel of the two snap-fit ​​members 4 as a whole along the axial direction of the fixed cylinder 1. The driven device 200 can be a cleaning cylinder sleeved on the outside of the fixed cylinder 1. The transmission receiving member 201 is provided on the bushing of the cleaning cylinder. The transmission receiving member 201 and the transmission output member 3 can be gears meshing or friction wheels meshing, etc.

[0086] It should be noted that both of the aforementioned snap-fit ​​components 4 can simultaneously adopt an elastic telescopic structure, or one snap-fit ​​component 4 can be a non-telescopic rigid structure and the other snap-fit ​​component 4 can be an elastic telescopic structure or an elastic snap-fit ​​structure, or one snap-fit ​​component 4 can be a non-telescopic elastic structure snap-fit ​​structure and the other snap-fit ​​component 4 can be a non-telescopic rigid structure or an elastic telescopic structure or an elastic snap-fit ​​structure.

[0087] When the detachable motor drive device 100 needs to be disassembled, force is simultaneously applied to the two locking pieces 4 in opposite directions along the axial direction of the fixed cylinder 1. The two locking pieces 4 retract as a whole along the axial direction of the fixed cylinder 1, and the detachable motor drive device 100 can be easily removed from the cleaner housing 300. Of course, the driven device 200 installed on the detachable motor drive device 100 can also be removed at this time. During installation, the two locking pieces 4 of the detachable motor drive device 100 can be directly snapped into the corresponding positions of the housing, which is convenient for disassembly and assembly. The specific form of the two locking pieces 4 is not limited to the form shown in the attached drawings, and can also be adapted to the specific structure of the cleaner, which is also within the protection scope of this invention.

[0088] It should be noted that the phrase "simultaneously applying force to the two fixing members 4 in opposite directions along the axial direction of the sleeve 1" can be "applying force to the telescopic cylinders of the two fixing members 4 in opposite directions along the axial direction of the sleeve 1," or "applying force to the flexible cantilever buckles of the two fixing members 4 in a direction parallel to the axial direction of the sleeve 1," or "applying force to the two points of elastic extension and contraction between the telescopic cylinder of one fixing member and the cantilever buckle of the other fixing member in a direction approximately parallel to the axial direction of the sleeve 1." Regardless of the method listed above, it can reduce the distance between the fulcrums where the two fixing members 4 are engaged with the side walls of the floor scrubber housing 300, thereby facilitating the removal of the detachable motor structure 100 from between the side walls of the floor scrubber housing 300.

[0089] The detachable motor drive device 100 provided by this invention drives the driven device 200 with a transmission receiver 201 to rotate by installing the electric drive module 2 on the fixed cylinder 1 and outputting power through the transmission output component 3. Two snap-fit ​​components 4 are provided at both ends of the fixed cylinder 1, detachably connected to the cleaner housing 300 and having an elastic stroke that extends and retracts along the axial direction of the fixed cylinder 1. This allows the cleaner machine equipped with this detachable motor drive device 100 to be easily removed from the cleaner machine housing during routine maintenance via the two snap-fit ​​components 4. The disassembly and assembly steps are relatively simple, greatly improving the user's experience in daily maintenance and disassembly of the drive motor when using the cleaner machine.

[0090] Specifically, in order to ensure the reliability of the transmission output of the detachable motor drive device 100, in the embodiments of the present invention, as follows: Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , Figure 14 As shown, the transmission output component 3 is a toothed component 3a rotatably mounted on one end of the fixed cylinder 1. It should be noted that when the driven device 200 is a cleaning cylinder, the transmission receiving component 201 can be an annular toothed slot component (not shown in the attached figure) that mates with the toothed component 3a. The selection of the toothed component 3a as the transmission output component 3 allows the detachable motor drive device 100 to synchronously output power to the driven device 200, and the toothed component 3a easily mates with the transmission receiving component 201, facilitating installation.

[0091] For details, please refer to further information. Figure 7 , Figure 14 In this embodiment, the locking member 3a includes a gear shaft 3a1 and at least one locking plate 3a2 disposed on the outer circumferential surface of the gear shaft 3a1. When multiple locking plates 3a2 are disposed, they can be evenly distributed along the circumference of the gear shaft 3a1. The shape of the gear shaft 3a1 can be of uniform diameter or, as in this embodiment, be a stepped shaft. The locking plates 3a2 are configured to evenly distribute the output torque of the detachable motor drive device 100 and transmit it to the driven device 200.

[0092] To facilitate limiting the driven device 200, in this embodiment of the invention, as follows: Figure 2 and Figure 3As shown, the transmission output component 3 is equipped with a limiting sleeve 5. The limiting sleeve 5 is installed on the end of the locking tooth component 3a opposite to the electric drive module 2 to limit the driven device 200. The limiting sleeve 5 can be screwed onto the locking tooth component 3a or locked onto the locking tooth component 3a. The setting of the limiting sleeve 5 facilitates the limiting of the driven device 200. After the driven device 200 is removed together with the detachable motor drive device 100, the limiting sleeve 5 can be removed to unlock the driven device 200 and remove it from the detachable motor drive device 100. Compared with directly removing the driven device 200 from the cleaner housing 300, the increased operating space after removing the detachable driven device 200 makes the disassembly and cleaning of the driven device 200, such as the cleaning cylinder, more convenient. The setting of the limiting sleeve 5 ensures both the reliability of the detachable driven device 200 and the rotation output of the driven device 200 and facilitates disassembly.

[0093] As a feasible implementation method, in order to facilitate the limiting of the driven device 200, in this embodiment of the invention, one side of the toothed piece 3a2 of the transmission output member 3 is provided with a Velcro structure (not shown in the figure) for limiting the driven device 200. The groove (not shown in the figure) in the transmission receiving member 201 of the driven device 200 corresponding to the toothed piece 3a2 is also provided with a Velcro structure (not shown in the figure). A gap (not shown in the figure) is provided between the toothed piece 3a2 and the groove. When the transmission receiving member 201 of the driven device 200 is installed in place along the axial direction of the toothed piece 3a2, rotating it a certain angle along the direction of the gap will firmly stick the Velcro structure of the toothed piece 3a2 to the Velcro structure of the groove, thereby limiting the space of the axial movement of the driven device 200 and preventing the driven device 200 from swaying axially during high-speed rotation. When it is necessary to remove the driven device 200, simply rotate the driven device 200 in the opposite direction of the gap so that the hook and loop structure of the locking tooth 3a2 separates from the hook and loop structure of the slot. Then the driven device 200 can be slowly removed along the other side of the locking tooth 3a2 where the hook and loop structure is not provided.

[0094] As a feasible implementation method, in order to facilitate limiting the driven device 200, in this embodiment of the invention, such as... Figure 8As shown, the end of the toothed plate 3a2 of the transmission output component 3 is provided with a barb structure 3a3 for limiting the driven device 200. A gap (not shown in the attached figure) is provided between the toothed plate 3a2 and the groove of the transmission receiving component 201 of the driven device 200. When the transmission receiving component 201 of the driven device 200 is installed in place along the axial direction of the toothed plate 3a2, rotating it a certain angle along the direction of the barb structure 3a3 can restrict the axial movement of the driven device 200, preventing axial lateral swaying during high-speed rotation. When it is necessary to remove the driven device 200, simply rotate it against the direction of the gap to separate the barb structure 3a3 of the toothed plate 3a2 from the groove. Then, the driven device 200 can be slowly removed along the other side of the toothed plate 3a2 where the barb structure 3a3 is not located.

[0095] In embodiments of the present invention, such as Figure 17 , Figure 18 , Figure 19 As shown, one of the two snap-fit ​​components 4 is a fixed insert 4a. The inner end of the fixed insert 4a is installed on the fixed cylinder 1 or on the transmission output component 3, and the outer end extends out of the fixed cylinder 1 to cooperate with the insertion hole (not shown in the figure) of the cleaner housing 300 to achieve the detachable connection. It should be noted that if one of the two snap-fit ​​components 4 is a fixed insert 4a, the other needs to be an elastic snap-fit ​​component 4, such as a telescopic cylinder or an elastic arm, so that the two snap-fit ​​components 4 as a whole have an elastic stroke that can extend and retract along the axial direction of the fixed cylinder 1. The choice of a fixed insert 4a as one of the snap-fit ​​components 4 has a simple structure, reduces the overall production cost of the cleaner, and improves the economy of this detachable motor drive device 100.

[0096] In the embodiments of the present invention, please refer to Figure 5 , Figure 6 , Figure 20 One of the two snap-fit ​​components 4 is a fixed snap-fit ​​cantilever 4b. The cantilever end of the fixed snap-fit ​​cantilever 4b is elastically snapped into the cleaner housing 300, and the other end is installed in the fixed cylinder 1. In this embodiment, the part of the fixed snap-fit ​​cantilever 4b installed in the fixed cylinder 1 and the cantilever part can be integrally set or separately set and then assembled. The setting of the fixed snap-fit ​​cantilever 4b makes it easier for the snap-fit ​​component 4 to generate elastic deformation in the axial direction, which can make it easier to remove or snap the detachable motor drive device 100 from the cleaner housing 300.

[0097] It should be noted that even if the part of the fixed clip cantilever 4b that mates with the fixed cylinder 1 is made of elastic material, the amount of expansion and contraction caused by the elastic material itself is limited. Figure 12The hanging lug portion (not shown in the attached figure) of the fixed snap-fit ​​cantilever 4b, under the elastic action of the thin-walled hanging lug, allows for a large degree of adaptive adjustment in the distance between the action points of the fixed snap-fit ​​cantilever 4b and another fixing member between the two side plates of the floor scrubber housing 300. The "elastic deformation" mentioned here is the result of the combined effect of the elastic deformation of the part of the fixed snap-fit ​​cantilever 4b that mates with the fixing cylinder 1 and the elastic deformation of the hanging lug portion.

[0098] Since the transmission output component 3 of the detachable motor drive device 100 needs to rotate, please refer to further details. Figure 5 , Figure 6 , Figure 14 , Figure 20 In this embodiment of the invention, one of the two snap-fit ​​components 4 is a rotating snap-fit ​​cantilever 4c. The cantilever end of the rotating snap-fit ​​cantilever 4c is elastically snapped into the cleaner housing 300, and the other end is rotatably connected to the transmission output component 3. A bearing (sleeve) 41 is fitted onto the rotating snap-fit ​​cantilever 4c, and the inner wall of the shaft of the transmission output component 3 (not shown in the figures) is transitionally fitted with the bearing (sleeve) 41. In this embodiment of the invention, the part of the rotating snap-fit ​​cantilever 4c that is rotatably connected to the transmission output component 3 and the cantilever part can be integrally set or assembled separately. The rotating connection part can be equipped with a bearing or a sleeve. To prevent the bearing (sleeve) 41 from falling off the rotating snap-fit ​​cantilever 4c, a retaining spring (not shown in the figures) is also snapped onto it to stop the bearing (sleeve) 41. The above-described configuration of one of the snap-fit ​​components 4 facilitates the removal of the detachable motor drive device 100 from the cleaner housing 300, and also facilitates the limiting of the transmission output component 3 when the detachable motor drive device 100 is installed on the cleaner housing 300, thus ensuring the reliability of the transmission.

[0099] It should be noted that even if the part of the rotating locking cantilever 4c that mates with the sleeve 1 is made of elastic material, the amount of expansion and contraction caused by the elastic material itself is limited. Figure 13 The hanging lug portion of the rotating snap-fit ​​cantilever 4c shown in the attached diagram (not indicated) allows for a significant adjustment of the distance between the fixed snap-fit ​​cantilever 4b and another fixing member at their points of action between the two side plates of the floor scrubber housing 300, thanks to the elastic action of the thin-walled hanging lug. Furthermore, it should be noted that... Figure 13As shown, the axial portion (not shown in the attached figure) of the rotating snap-fit ​​cantilever 4c is transition-fitted with the bearing (sleeve) 41. Under external force, the rotating snap-fit ​​cantilever 4c can be adjusted by a small axial displacement along the entire axis by utilizing the constraint of the transition fit with the bearing (sleeve) 41. The "elastic deformation" mentioned here is the result of the combined action of the elastic deformation of the part of the rotating snap-fit ​​cantilever 4c that mates with the sleeve 1, the elastic deformation of the lug portion, and the adjustment of the rotating snap-fit ​​cantilever 4c along the entire axis by utilizing the constraint of the transition fit with the bearing (sleeve) 41. For the convenience of power connection of the detachable motor drive device 100, please refer to the embodiment of the present invention. Figure 6 , Figure 17 , Figure 18 One of the snap-fit ​​components 4 is a fixed insert 4a or a fixed snap-fit ​​cantilever 4b, which is provided with a conductive component f. One end of the conductive component f is electrically connected to the power input terminal (not shown in the figure) of the electric drive module 2, and the other end is used to be electrically connected to the cleaner power supply when the corresponding snap-fit ​​component 4 is detachably connected to the cleaner housing 300. In this embodiment, the conductive component f is a conductive socket. The electrical connection between one end of the conductive component f and the power input terminal of the electric drive module 2 can be achieved by connecting one end of the conductive socket to the power input port of the motor drive board in the electric drive module 2 through a wire and a pin (not shown in the figure). The other end of the conductive socket can cooperate with the elastic conductive component f provided on the cleaner housing 300. When the detachable motor drive device 100 is installed in place on the cleaner housing 300, the conductive socket and the elastic conductive component f on the cleaner housing 300 snap together to achieve electrical connection. The conductive element f allows the power transmission wires to be cut when disassembling the detachable motor drive device 100, further increasing the ease of use of the detachable motor drive device 100.

[0100] Specifically, such as Figure 6 As shown, the fixed snap-fit ​​cantilever 4b is equipped with a conductive element f, which is a retractable metal spring pin. When the snap-fit ​​element 4b is detachably connected to the cleaner housing 300, it can automatically make an electrical connection with the power contact (not shown in the figure) preset in the side plate of the housing 300, thereby achieving an electrical connection with the cleaner's power supply. When maintenance is required on the motor drive device 100, the user can stop the cleaner from working, which naturally cuts off the voltage output of the power contact preset in the side plate of the housing 300. The user can then freely remove the motor drive device 100 without causing an electric arc between the retractable metal spring pin and the power contact preset in the side plate of the housing 300.

[0101] Specifically, as shown in the figure Figure 11 , Figure 12As shown, the fixed snap-fit ​​cantilever 4b includes a cantilever elastic cylinder base 4b1, on which a power connection structure 4b2 is provided to connect the electric drive module 2 and an external power source. Specifically, the power connection structure is a metal power connection part 4b21 that penetrates the cantilever elastic cylinder base 4b1. The metal power connection part 4b21 is an elastically retractable metal spring pin (not shown in the figure).

[0102] Specifically, as shown in the figure Figure 17 , Figure 18 As shown, the conductive element f on the snap-fit ​​4a is a retractable metal spring pin (not shown in the attached figure). When the snap-fit ​​4a is detachably connected to the cleaner housing 300, it is necessary to use the flexible circuit contact on the side plate of the housing 300 to snap-fit ​​the snap-fit ​​4a to achieve manual power connection to the cleaner. When the motor drive device 100 needs maintenance, the user can stop the cleaner, which will naturally cut off the voltage output of the flexible circuit contact on the side plate of the housing 300. The user needs to manually separate the flexible circuit contact from the snap-fit ​​4a to disconnect the power supply to the motor drive device 100 without causing an arc between the retractable metal spring pin and the flexible circuit contact. Then the entire motor drive device 100 can be removed.

[0103] As a feasible implementation, the detachable motor drive device 100 has a built-in power supply, which can be a rechargeable battery (not shown in the attached figure). In this case, one of the snap-fit ​​components 4 is a fixed insert 4f or a fixed snap-fit ​​cantilever 4g, and there is no need to configure conductive components f on it. The corresponding side plate of the cleaner housing 300 also does not need to have pre-set flexible circuit contacts. Charging of the rechargeable battery can be achieved by using a wireless charging receiving coil (not shown in the attached figure) located on the outer or inner wall of the detachable motor drive device 100 in conjunction with a wireless charging transmitting coil (not shown in the attached figure) of the cleaner charging base. Specifically, as shown in the attached figure... Figure 19 , Figure 20 As shown, there are no wiring harnesses or conductive parts f inside the fixed insert 4f and the fixed snap-fit ​​cantilever 4g that connect to the electric drive module 2.

[0104] Specifically, in embodiments of the present invention, such as Figure 9 , Figure 10 , Figure 15 , Figure 16As shown, one of the two locking components 4 is a retractable elastic locking component 4d, including a socket 4d1 and a movable cylinder 4d2 that retracts and elastically engages with the socket 4d1. The socket 4d1 is fixedly installed on the fixed cylinder 1, and the end of the movable cylinder 4d2 facing away from the socket 4d1 is used to engage with the insertion hole of the cleaner housing 300 to achieve the detachable connection. The retractable and elastic engagement of the socket 4d1 and the socket 4d2 can be achieved by setting a spring (not shown in the figure) between the socket 4d1 and the socket 4d2. The segmented movable design of the locking component 4 as described above greatly increases the overall elastic extension and contraction of the two locking components 4 in the axial direction of the fixed cylinder 1, while being less prone to breakage and failure compared to a cantilever structure.

[0105] As a feasible implementation, to facilitate the connection of the electric drive module 2 to an external power source via the segmented movable connector 4d, in this embodiment of the invention, please refer to... Figure 9 and Figure 10 The movable cylinder 4d2 has a metal contact part 4d21. One end of the metal contact part 4d21 is electrically connected to the power input terminal of the electric drive module 2, and the other end of the metal contact part 4d21 is used to be electrically connected to the power supply of the cleaner when the movable cylinder 4d2 is detachably connected to the cleaner housing 300.

[0106] Specifically, in the embodiments of the present invention, please refer to further details. Figure 7 , Figure 8 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 One of the two snap-fit ​​components 4 includes a resilient insert 4e. One end of the resilient insert 4e is snapped onto the outer end of the transmission output component 3 and has a axial travel along the fixed cylinder 1. The other end of the resilient insert 4e is used to cooperate with the insertion hole (not shown in the figure) of the cleaner housing 300 to achieve the detachable connection. The resilient insert 4e can achieve the axial travel by cooperating with the transmission output component 3 through a spring, and the reset limit position of the resilient insert 4e's travel is limited by a limiting latch (not shown in the figure). The above-described configuration of the resilient insert 4e has a relatively simple structure and can limit the transmission output component 3 after the detachable motor drive device 100 is installed into the cleaner housing 300, and the axial travel is easily achieved, facilitating disassembly.

[0107] It should be noted that the elastic sleeve 4e has various structures that can achieve elastic expansion and contraction in the axial direction, such as... Figure 7 , Figure 8 , Figure 15 , Figure 17 , Figure 18As shown, the elastic insert 4e is provided with multiple hooks with barbs (not shown in the attached figure). The hooks extend into the end face of the transmission output component 3 facing away from the electric drive module 2, and the barbs are engaged with the inner wall of the end face of the transmission output component 3 facing away from the electric drive module 2. The elastic insert 4e is provided with a spring, one end of which abuts against the inner wall of the transmission output component 3 and the other end of which abuts against the inner wall of the elastic insert 4e. The hooks and spring of the elastic insert 4e limit the elastic insert 4e to move elastically in its axial direction and rotate together with the transmission output component 3 as shown. In this design, the insertion hole of the cleaner housing 300 houses a bearing (sleeve) 301, and the outer wall of the elastic insert 4e transitions with the inner wall of the bearing (sleeve) 301. Figure 16 , Figure 19 As shown, the end face of the elastic insert 4e that mates with the transmission output component 3 is provided with a plane bearing (wear-resistant gasket) 42. A spring is provided inside the elastic insert 4e. One end of the spring abuts against a stop sleeve (not shown in the figure) that is stopped on the plane bearing (wear-resistant gasket) 42, and the other end abuts against the inner wall of the elastic insert 4e. The spring of the elastic insert 4e limits the elastic movement of the elastic insert 4e in its axial direction. The cylindrical outer wall of the elastic insert 4e is clearance-fitted with the cylindrical inner wall of the transmission output component 3. The shape of the elastic insert 4e that is clearance-fitted with the insertion hole of the cleaner housing 300 is non-circular to prevent mutual rotation. The elastic insert 4e does not rotate with the transmission output component 3.

[0108] Specifically, in embodiments of the present invention, such as Figure 6 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 As shown, the electric drive module 2 includes a drive motor 21 and a transmission component 22. The output end of the drive motor (not shown in the figure) is drive-connected to the input end of the transmission component (not shown in the figure), and the output end of the transmission component is drive-connected to the transmission output component 3. The electric drive module 2 can be powered by a wireless power supply module or electrically connected to an external power source through a power connection structure. The transmission component 22 can be multiple cooperating reduction gear sets. The setting of the transmission component increases the torque output of the drive motor 21, ensuring the effectiveness of the torque output of the transmission output component 3.

[0109] In the first embodiment of the detachable motor drive device, the left end of the fixed cylinder 1 is detachably connected to a snap-fit ​​4d that is elastically pressable and has a conductive element f. The end of the transmission output device 3 is snapped with a pressable snap-fit ​​4e. The snap-fit ​​4e rotates together with the transmission output device 3 and transitionally engages with the bearing (sleeve) 301 configured in the insertion hole of the cleaner housing 300. The left end of the detachable motor drive device achieves electrical connection with an external power source while engaging with the insertion hole of the cleaner housing 300.

[0110] In the second embodiment of the detachable motor drive device, a fixed snap-fit ​​cantilever 4b with a conductive element f is detachably connected to the left end of the fixed cylinder 1. A rotating snap-fit ​​cantilever 4c is snapped onto the end of the transmission output component 3. A bearing (sleeve) 41 is sandwiched between the rotating snap-fit ​​cantilever 4c and the transmission output component 3. The fixed snap-fit ​​cantilever 4b and the rotating snap-fit ​​cantilever 4c are detachably snapped onto the slots of the cleaner housing 300. The left end of the detachable motor drive device can achieve electrical connection with an external power source while cooperating with the insertion hole of the cleaner housing 300.

[0111] The third embodiment of the detachable motor drive device is the same as the first embodiment, and the difference from the first embodiment is that a flat bearing (wear-resistant pad) 42 is sandwiched between the snap-fit ​​part 4e and the transmission output part 3.

[0112] The fourth embodiment of the detachable motor drive device is the same as the first embodiment, and the difference from the first embodiment is that the left end of the fixed cylinder 1 is detachably connected to a snap-fit ​​4a that is not elastically pressable and is provided with a conductive element f.

[0113] The fifth embodiment of the detachable motor drive device is the same as the fourth embodiment, and the difference from the fourth embodiment is that the left end of the fixed cylinder 1 is detachably connected to a snap-fit ​​4f that is not elastically pressable and does not have a conductive part f.

[0114] The sixth embodiment of the detachable motor drive device is the same as the second embodiment, and the difference from the second embodiment is that the left end of the fixed cylinder 1 is detachably connected to a fixed snap-fit ​​cantilever 4g without conductive parts f.

[0115] The seventh embodiment of the detachable motor drive device is the same as the first embodiment, and the difference from the first embodiment is that: the end of the transmission output component 3 is provided with a rotating locking cantilever 4c, and a bearing (sleeve) 41 is sandwiched between the rotating locking cantilever 4c and the transmission output component 3.

[0116] The eighth embodiment of the detachable motor drive device is the same as the second embodiment, and the difference from the second embodiment is that: the end of the transmission output component 3 is provided with a pressable snap-fit ​​component 4e, which rotates together with the transmission output component 3 and transitions into the bearing (sleeve) 301 configured in the insertion hole of the cleaner housing 300.

[0117] In summary, this invention proposes a detachable motor drive device 100 for a cleaner. The detachable motor drive device 100 includes: a fixed cylinder 1, an electric drive module 2, a transmission output component 3, and two snap-fit ​​components 4. The electric drive module 2 is installed inside the fixed cylinder 1. The rotational output end of the electric drive module 2 is connected to the transmission output component 3. The transmission output component 3 drives the driven device 200 with a transmission receiving component 201 to rotate. The two snap-fit ​​components 4 are respectively disposed at both ends of the fixed cylinder 1 and have an elastic stroke that extends and retracts along the axial direction of the fixed cylinder 1, or in a direction parallel to or approximately parallel to the axial direction of the fixed cylinder 1, for detachable connection with the cleaner housing 300. Secondly, this invention also proposes a cleaner, which includes a detachable motor drive device 100 and a cleaning roller driven by it. The detachable motor drive device 100 is as described above. The specific structure of the detachable motor drive device 100 is as described in the above embodiments. Since the cleaning machine adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0118] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A detachable motor drive device for a cleaner, characterized by, The application relates to a detachable motor driving device, which comprises the following parts: an electric driving module with a rotating output end, which drives a driven device to rotate to wipe a surface to be cleaned; a fixing cylinder for mounting the electric driving module; a transmission output element in transmission connection with the rotating output end; two clamping elements arranged at the two ends of the fixing cylinder and detachably connected with a machine shell; wherein the detachable motor driving device has an elastic stroke along the axial direction of the fixing cylinder to realize easy dismounting and mounting of the detachable motor driving device from the machine shell; preferably, the two ends of the detachable motor driving device have elastic strokes along the axial direction of the fixing cylinder or parallel to the axial direction of the fixing cylinder; preferably, the two clamping elements are simultaneously axially contracted along the axial direction of the fixing cylinder by applying force to the two clamping elements along the axial direction of the fixing cylinder.

2. The detachable motor drive of claim 1, wherein, The driven device has a transmission receiving element, and the transmission receiving element and the transmission output element are matched; preferably, the transmission receiving element and the transmission output element are matched in the form of gear matching or friction wheel matching; preferably, the transmission output element is a clamping tooth element rotatably arranged at one end of the fixing cylinder, and the transmission receiving element is an annular clamping tooth slot element matched with the clamping tooth element; preferably, the clamping tooth element comprises a tooth shaft and at least one clamping tooth piece arranged on the outer circumferential surface of the tooth shaft.

3. The detachable motor drive of claim 2, wherein, The plurality of clamping tooth pieces are uniformly distributed along the circumferential direction of the tooth shaft.

4. The detachable motor drive of claim 2, wherein, The tooth shaft is arranged in the form of a uniform diameter or a stepped shaft.

5. The detachable motor drive of claim 2, wherein, The driven device is a cleaning cylinder arranged outside the fixing cylinder, and the transmission receiving element is arranged on the shaft sleeve of the cleaning cylinder.

6. The detachable motor drive of claim 2, wherein, The transmission output element is provided with a limiting sleeve, the limiting sleeve is arranged at the end of the clamping tooth element away from the electric driving module, and is used for limiting the driven device; preferably, the limiting sleeve is rotatably connected or clamped to the clamping tooth element; preferably, after the driven device is taken off together with the detachable motor driving device, the limiting sleeve is dismounted, the driven device is unlocked, and the driven device is taken off from the detachable motor driving device; preferably, a groove is arranged at the position corresponding to the clamping tooth piece in the transmission receiving element, and a gap is arranged between the clamping tooth piece and the groove; preferably, one side of the clamping tooth piece is provided with a magic tape structure for limiting the driven device, and the groove is also provided with a magic tape structure; after the transmission receiving element is arranged in place along the axial direction of the clamping tooth piece, the clamping tooth piece is rotated by a certain angle along the direction of the gap, so that the magic tape structure of the clamping tooth piece is pasted together with the magic tape structure of the groove; when the driven device needs to be taken off, the driven device is only needed to be rotated in the direction opposite to the gap, so that the magic tape structure of the clamping tooth piece is separated from the magic tape structure of the groove, and then the driven device is slowly taken out along the other side of the clamping tooth piece without the magic tape structure; preferably, the end of the clamping tooth piece is provided with a barb structure for limiting the driven device; after the transmission receiving element is arranged in place along the axial direction of the clamping tooth piece, the driven device is rotated by a certain angle along the direction of the barb structure, so that the axial movement space of the driven device is limited; when the driven device needs to be taken off, the driven device is only needed to be rotated in the direction opposite to the gap, so that the barb structure of the clamping tooth piece is separated from the groove, and then the driven device is slowly taken out along the other side of the clamping tooth piece without the barb structure.

7. The detachable motor drive of claim 1, wherein, One of the two clamping elements is a fixed insertion cylinder, the inner end of the fixed insertion cylinder is arranged in the fixing cylinder or arranged in the transmission output element, and the outer end of the fixed insertion cylinder extends out of the fixing cylinder to be matched with the machine shell to realize detachable connection. Preferably, the outer end of the fixed sleeve is transitionally connected with the bearing inner ring or the shaft sleeve inner ring of the shell.

8. The detachable motor drive of claim 1, wherein, At least one of the two clamping members is provided with at least two electrically conductive members electrically connected with the electric drive module and externally electrically connectable, and the clamping members are clamped to the cleaner shell to realize power supply connection for the electric drive module. Preferably, one of the two clamping members is a fixed clamping cantilever, the cantilever end of which is elastically clamped to the shell, and the other end of the fixed clamping cantilever is mounted to the fixed sleeve. Preferably, the other of the two clamping members is a rotating clamping cantilever relatively rotatable with the transmission output member, the cantilever end of which is elastically clamped to the shell, and the other end of the rotating clamping cantilever is rotatably connected with the transmission output member. Preferably, the rotating clamping cantilever is internally provided with a bearing or a shaft sleeve, and the shaft of the transmission output member is transitionally connected with the bearing or the shaft sleeve. Preferably, the rotating clamping cantilever is further clamped with a clamping spring for stopping the bearing or the shaft sleeve. Preferably, one end of the electrically conductive member is electrically connected with the power input end of the electric drive module, and the other end of the electrically conductive member is used to be electrically connected with the power supply when the corresponding clamping member is detachably connected to the shell.

9. The detachable motor drive of claim 1, wherein, One of the two clamping members includes a sleeve seat and a movable sleeve in telescopic and elastic connection with the sleeve seat, the sleeve seat is fixedly mounted to the fixed sleeve, and the end of the movable sleeve away from the sleeve seat is used to be connected with the insertion hole of the shell to realize detachable connection. Preferably, the movable sleeve is provided with a metal electrical connection part, one end of the metal electrical connection part is electrically connected with the power input end of the electric drive module, and the other end of the metal electrical connection part is used to be electrically connected with the power supply when the movable sleeve is detachably connected to the shell. Preferably, one of the two clamping members includes an elastic sleeve, one end of the elastic sleeve is clamped to the outer end of the transmission output member and has an axial movement stroke along the fixed sleeve, and the other end of the elastic sleeve is used to be rotatably connected with the insertion hole of the shell to realize detachable connection.

10. The detachable motor drive of claim 1, wherein, The electric drive module includes a drive motor and a speed changing member, the output end of the drive motor is transmissionally connected with the input end of the speed changing member, the output end of the speed changing member is transmissionally connected with the transmission output member; the inside of the fixed sleeve is provided with a battery capable of being repeatedly charged and discharged, the outer wall or the inner wall of the fixed sleeve is provided with a wireless charging receiving coil, and the wireless charging receiving coil can realize charging of the battery capable of being repeatedly charged and discharged in cooperation with the wireless charging transmitting coil of the charging base; and the inside of the two clamping members is not provided with any wire harness for connecting the electric drive module.

Images