Waterproof driving mechanism and cleaning device

Abstract

The invention is suitable for the technical field of cleaning equipment. The invention discloses a waterproof driving mechanism and a cleaning device.The waterproof driving mechanism comprises a driving motor arranged in a protection pipe sleeve, a power supply reference shaft and an output shaft of the driving motor are located at the two ends of the protection pipe sleeve respectively, a bearing seat is arranged at one end of the protection pipe sleeve, and a sealing cover is arranged at the other end of the protection pipe sleeve; a first waterproof structure is arranged between the bearing seat and the protection pipe sleeve, a second waterproof structure is arranged between the sealing cover and the protection pipe sleeve, and a rotating shaft of the driving motor penetrates through the sealing cover. Due to the fact that the first waterproof structure and the second waterproof structure are arranged at the two ends of the protection pipe sleeve respectively, and the two waterproof structures achieve waterproofness by increasing the waterproof area and the length of a waterproof path, the waterproof effect is better, and the waterproof pipe sleeve can be widely applied to liquid contact devices or appliances such as mopping and sweeping integrated cleaning tools and the like.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202210412190.2, entitled "A Waterproof Drive Mechanism and Cleaning Device", filed on April 19, 2022, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning equipment technology, and in particular to a waterproof drive mechanism and cleaning device. 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. Since this cleaning section becomes contaminated once it comes into contact with a dirty floor, its cleaning ability gradually weakens during subsequent cleaning, especially when sweeping large areas continuously, making thorough cleaning impossible. Therefore, these cleaning products must be rinsed frequently, which is quite troublesome.

[0005] Since the rollers of cleaning tools need to come into contact with liquids during use, and this contact is unavoidable, the drive mechanism needs to be waterproofed. However, the existing waterproofing is not effective, and liquids can easily enter, thus affecting the service life. Summary of the Invention

[0006] The main technical problem solved by the present invention is to provide a waterproof drive mechanism and a cleaning device, wherein the waterproof drive mechanism can prevent liquid from entering the interior and improve the waterproof effect.

[0007] To address the aforementioned problems, in a first aspect, the present invention provides a waterproof drive mechanism, comprising:

[0008] Protective sleeve;

[0009] The bearing housing is located at one end of the protective sleeve, and a first waterproof structure is provided between the two.

[0010] A sealing cap is located at the other end of the protective sleeve, and a second waterproof structure is provided between the two. The second waterproof structure includes a first elastic waterproof sleeve that partially covers the sealing cap.

[0011] The drive motor, housed within the protective sleeve, includes:

[0012] The motor body has an output end;

[0013] The output shaft is located at the output end and is equipped with a shaft connector. The output shaft passes through the sealing cover and connects to the shaft connector to achieve transmission.

[0014] The power lead is located at the end of the motor body away from the output end and passes through the bearing housing;

[0015] The bearing housing, protective sleeve, and sealing cover provide waterproofing for the motor body. The first waterproof structure prevents liquid from entering the protective sleeve from the bearing housing, and the second waterproof structure prevents liquid from entering the protective sleeve from the output shaft. The surface of the first elastic waterproof sleeve that contacts the output shaft is provided with multiple first water-blocking rings. Each first water-blocking ring is set to be inclined outward, and the first water-blocking ring contacts the output shaft and extends outward elastically.

[0016] In one or more alternative embodiments, the sealing cap includes a sealing cap body, and a pressing and fixing ring is provided on the inner side of the sealing cap body. The pressing and fixing ring cooperates with the fixing groove provided on the first elastic waterproof sleeve to fix it, so that the first elastic waterproof sleeve and the sealing cap form an integral whole.

[0017] In one or more alternative embodiments, there are three first water-blocking rings, each of which is interference-fitted with the surface of the output shaft.

[0018] In one or more alternative embodiments, the surface of the output shaft is provided with a waterproof groove that mates with the first water-retaining ring, and the waterproof groove partially accommodates the first water-retaining ring.

[0019] In one or more alternative embodiments, a plurality of second water-blocking rings are provided between the first elastic waterproof sleeve and the protective sleeve. The second water-blocking rings can increase the contact area with the protective sleeve when the sealing cap is fixed to the protective sleeve.

[0020] In one or more alternative embodiments, the first waterproof structure includes a second elastic waterproof sleeve whose end contacts the bearing housing, and the contact surface between the second elastic waterproof sleeve and the protective sleeve is provided with a plurality of third water-retaining rings.

[0021] In one or more alternative embodiments, a second resilient waterproof sleeve partially covers the end of the bearing housing.

[0022] In one or more alternative embodiments, the shaft connector is provided with a plurality of limiting grooves, each limiting groove having a beveled bottom.

[0023] In one or more alternative embodiments, the bearing housing is provided with a limiting step and a bearing platform for fixing the bearing, and a fixing groove is provided on the outside of the bearing platform, the fixing groove being provided with a retaining ring for fixing the bearing.

[0024] In one or more alternative embodiments, the waterproof drive mechanism further includes:

[0025] A fixed base is movably connected to a bearing housing. A movable shaft is provided between the fixed base and the bearing housing, allowing the bearing housing and the fixed base to rotate using the movable shaft as the pivot.

[0026] In one or more alternative embodiments, the mounting base is provided with a wire hole, and the bearing housing is provided with a wire passage hole communicating with the wire hole.

[0027] In one or more alternative embodiments, the bearing housing is provided with a wire passage hole.

[0028] In one or more alternative embodiments, the sealing cap includes a sealing cap body and a pressing and fixing ring with an inner side, the pressing and fixing ring being fixed in conjunction with a fixing groove provided on the first elastic waterproof sleeve.

[0029] In one or more alternative embodiments, after the sealing cap and the protective sleeve are fastened together, the clamping ring provides a clamping force to the second water ring.

[0030] In one or more optional embodiments, the protective sleeve has fixed protrusions at both ends, and a limiting notch is formed between adjacent fixed protrusions. The sealing cap and bearing seat are respectively provided with structures that match the two ends of the protective sleeve.

[0031] In a second aspect, the present invention also provides a cleaning device, including a cleaning head and a handle assembly movably connected to the cleaning head. The cleaning head is provided with a roller and a drive mechanism for driving the roller to rotate. The drive mechanism is the waterproof drive mechanism described in the first aspect.

[0032] This invention provides a waterproof drive mechanism and a cleaning device. The waterproof drive mechanism includes a drive motor housed within a protective sleeve. The power lead and output shaft of the drive motor are located at opposite ends of the protective sleeve. A bearing seat is provided at one end of the protective sleeve, and a sealing cap is provided at the other end. A first waterproof structure is provided between the bearing seat and the protective sleeve, and a second waterproof structure is provided between the sealing cap and the protective sleeve. The output shaft passes through the sealing cap. Because the first and second waterproof structures are respectively provided at both ends of the protective sleeve, and because the two waterproof structures achieve waterproofing by increasing the waterproof area and the length of the waterproof path, they have a better waterproof effect and can be widely used in devices or appliances that come into contact with liquids, such as cleaning tools that combine mopping and sweeping. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings, without exceeding the scope of protection claimed by this application.

[0034] Figure 1A schematic diagram of an example embodiment of the waterproof drive mechanism of the present invention.

[0035] Figure 2 An exploded view of the structure of an example embodiment of the waterproof drive mechanism of the present invention.

[0036] Figure 3 along Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0037] Figure 4 along Figure 1 Enlarged schematic diagram of part A in the middle.

[0038] Figure 5 along Figure 3 Enlarged schematic diagram of part B in the middle section.

[0039] Figure 6 along Figure 3 Enlarged schematic diagram of section C.

[0040] Figure 7 Enlarged schematic diagram of the bearing housing structure.

[0041] Figure 8 Enlarged schematic diagram of the shaft connector structure.

[0042] Figure label:

[0043] Waterproof drive mechanism 10, protective sleeve 101, drive motor 102, power lead 103, output shaft 104, bearing seat 105, sealing cover 106, first waterproof structure 107, second waterproof structure 108, first elastic waterproof sleeve 1081, first water-blocking ring 10811, second water-blocking ring 10812, second elastic waterproof sleeve 1071, third water-blocking ring 10711, shaft connector 109, limiting groove 1091, inclined surface 1092, fixing groove 1051, limiting step 1052, support 1053, bearing 110, snap ring 111, fixing seat 112, movable shaft 113, wire hole 1121.

[0044] 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

[0045] 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.

[0046] 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.

[0047] 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 explicitly defined; "at least one" means one or more.

[0048] 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 according to the specific circumstances.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] The following will describe the scheme of this application in detail with reference to the accompanying drawings.

[0053] like Figures 1-8 As shown, the present invention provides an example embodiment of a waterproof drive mechanism.

[0054] The waterproof drive mechanism includes a drive motor 102 housed inside a protective sleeve 101. The power lead and output shaft 104 of the drive motor 102 are located at both ends of the protective sleeve 101. A bearing seat 105 is provided at one end of the protective sleeve 101, and a sealing cover 106 is provided at the other end. A first waterproof structure 107 is provided between the bearing seat 105 and the protective sleeve 101, and a second waterproof structure 108 is provided between the sealing cover 106 and the protective sleeve 101. The output shaft 104 of the drive motor passes through the sealing cover 106.

[0055] Specifically, the output shaft 104 passes through the sealing cover 106 and connects to the shaft connector 109 for transmission. The second waterproof structure 108 includes a first elastic waterproof sleeve 1081 partially covering the sealing cover 106. The surface of the first elastic waterproof sleeve 1081 that contacts the output shaft 104 is provided with multiple first water-blocking rings 10811. The number of first water-blocking rings 10811 can be one or more; in this embodiment, three are used. Each first water-blocking ring 10811 is press-fitted with the surface of the output shaft 104. If necessary, each first water-blocking ring 10811 is set to be tilted outwards for better fit. The surface of the output shaft 104 may be provided with a waterproof groove (not shown in the figures) that mates with the first water-blocking rings 10811. This waterproof groove partially accommodates the first water-blocking rings 10811, thus extending the waterproof path without significantly increasing the output resistance of the output shaft 104. The second waterproof structure 108 prevents liquid from entering the protective sleeve 101 from the output shaft 104.

[0056] To achieve better waterproofing, a plurality of second water rings 10812 are provided between the first elastic waterproof sleeve 1081 and the protective sleeve 101101. The second water rings 10812 can increase the contact area between the sealing cap 106 and the protective sleeve 101 when the sealing cap 106 is fixed to the protective sleeve 101.

[0057] The first waterproof structure 107 includes a second elastic waterproof sleeve 1071 whose end contacts the bearing housing 105, wherein the second elastic waterproof sleeve 1071 has a plurality of third water-retaining rings 10711 on the contact surface with the protective sleeve 101. The first waterproof structure 107 prevents liquid from entering the protective sleeve 101 from the bearing housing 105.

[0058] The output shaft 104 of the drive motor 102102 is provided with a shaft connector 109. The shaft connector 109 is provided with multiple limiting grooves 1091. Each limiting groove 1091 is evenly distributed along the circumference. Each limiting groove 1091 has an inclined surface 1092 at the bottom. The inclined surface 1092 can guide the parts entering the limiting groove 1091.

[0059] The bearing seat 105 is provided with a bearing platform 1053 having a limiting step 1052 and a fixed bearing 110. A fixing groove 1051 is provided on the outside of the bearing platform 1053, and a retaining ring 111 for fixing the bearing is provided in the fixing groove 1051.

[0060] The waterproof drive mechanism also includes a fixed base 112 movably connected to the bearing housing 105. A movable shaft 113 is provided between the fixed base 112 and the bearing housing 111, allowing the bearing housing 111 and the fixed base 112 to rotate around the movable shaft 113. The fixed base 112 is provided with a wire hole 1121. The bearing housing 105 is provided with a wire through hole (not shown in the figure) communicating with the wire hole 1121.

[0061] Because a first waterproof structure and a second waterproof structure are respectively set at both ends of the protective sleeve, and the two waterproof structures achieve waterproofing by increasing the waterproof area and increasing the length of the waterproof path, they have a better waterproofing effect and can be widely used in devices or appliances that come into contact with liquids, such as cleaning tools that combine mopping and sweeping.

[0062] As needed, the sealing cap 106 includes a sealing cap body 1060 and a clamping and fixing ring 1061 with an inner side. The clamping and fixing ring 1061 cooperates with the fixing groove (not shown in the figure) provided on the first elastic waterproof sleeve 1081 to fix it, so that the first elastic waterproof sleeve 1081 and the sealing cap 106 form a whole, which facilitates installation. At the same time, after the sealing cap 106 and the protective tube sleeve 101 are tightened and fixed, the clamping and fixing ring 1061 provides a clamping force for the second water ring 10812, which can also increase the contact surface between the second water ring 10812 and the protective tube sleeve 101, further improving the waterproof effect.

[0063] The protective sleeve 101 has fixed protrusions 1010 at both ends, and a limiting notch 1011 is formed between adjacent fixed protrusions 1010. The sealing cover 106 and the bearing seat 105 are respectively provided with structures that match the two ends of the protective sleeve 101. This can provide a greater fastening effect in the circumferential direction of the protective sleeve 101, and at the same time effectively reduce the overall weight of the drive mechanism.

[0064] The present invention also provides an embodiment of a cleaning device.

[0065] The cleaning device includes a cleaning head (not shown in the attached drawing) and a handle assembly (not shown in the attached drawing) movably connected to the cleaning head. The cleaning head is equipped with a roller (not shown in the attached drawing) and a waterproof drive mechanism for driving the roller to rotate. The waterproof drive mechanism includes a drive motor 102 located inside a protective sleeve 101. The power lead and output shaft 104 of the drive motor 102 are located at both ends of the protective sleeve 101. A bearing seat 105 is provided at one end of the protective sleeve 101, and a sealing cover 106 is provided at the other end. A first waterproof structure 107 is provided between the bearing seat 105 and the protective sleeve 101, and a second waterproof structure 108 is provided between the sealing cover 106 and the protective sleeve 101. The output shaft 104 of the drive motor passes through the sealing cover 106.

[0066] Specifically, in this embodiment, the handle assembly can be implemented using existing conventional technologies.

[0067] The output shaft 104 passes through the sealing cover 106 and connects to the shaft connector 109 for transmission. The second waterproof structure 108 includes a first elastic waterproof sleeve 1081 partially covering the sealing cover 106. The surface of the first elastic waterproof sleeve 1081 that contacts the output shaft 104 is provided with multiple first water-blocking rings 10811. The number of first water-blocking rings 10811 can be one or more; in this embodiment, three are used. Each first water-blocking ring 10811 is press-fitted with the surface of the output shaft 104. If necessary, each first water-blocking ring 10811 is set to be tilted outwards for better fit. The surface of the output shaft 104 may be provided with a waterproof groove (not shown in the figure) that mates with the first water-blocking rings 10811. This waterproof groove partially accommodates the first water-blocking rings 10811, thus extending the waterproof path without significantly increasing the output resistance of the output shaft 104. The second waterproof structure 108 prevents liquid from entering the protective sleeve 101 from the output shaft 104.

[0068] To achieve better waterproofing, a plurality of second water rings 10812 are provided between the first elastic waterproof sleeve 1081 and the protective sleeve 101. The second water rings 10812 can increase the contact area between the sealing cap 106 and the protective sleeve 101 when the sealing cap 106 is fixed to the protective sleeve 101.

[0069] The first waterproof structure 107 includes a second elastic waterproof sleeve 1071 whose end contacts the bearing housing 105, wherein the second elastic waterproof sleeve 1071 has a plurality of third water-retaining rings 10711 on the contact surface with the protective sleeve 101. The first waterproof structure 107 prevents liquid from entering the protective sleeve 101 from the bearing housing 105.

[0070] The output shaft 104 of the drive motor 102 is provided with a shaft connector 109. The shaft connector 109 is provided with a plurality of limiting grooves 1091. Each limiting groove 1091 is evenly distributed along the circumference. Each limiting groove 1091 has an inclined surface 1092 at the bottom. The inclined surface 1092 can guide the parts entering the limiting groove 1091.

[0071] The bearing seat 105 is provided with a bearing platform 1053 having a limiting step 1052 and a fixed bearing 110. A fixing groove 1051 is provided on the outside of the bearing platform 1053, and a retaining ring 111 for fixing the bearing is provided in the fixing groove 1051.

[0072] The waterproof drive mechanism also includes a fixed base 112 movably connected to the bearing housing 105. A movable shaft 113 is provided between the fixed base 112 and the bearing housing 111, allowing the bearing housing 111 and the fixed base 112 to rotate around the movable shaft 113. The fixed base 112 is provided with a wire hole 1121. The bearing housing 105 is provided with a wire through hole (not shown in the figure) communicating with the wire hole 1121.

[0073] Because a first waterproof structure and a second waterproof structure are respectively set at both ends of the protective sleeve, and the two waterproof structures achieve waterproofing by increasing the waterproof area and increasing the length of the waterproof path, they have a better waterproofing effect and can be widely used in devices or appliances that come into contact with liquids, such as cleaning tools that combine mopping and sweeping.

[0074] As needed, the sealing cap 106 includes a sealing cap body 1060 and a clamping and fixing ring 1061 with an inner side. The clamping and fixing ring 1061 cooperates with the fixing groove (not shown in the figure) provided on the first elastic waterproof sleeve 1081 to fix it, so that the first elastic waterproof sleeve 1081 and the sealing cap 106 form a whole, which facilitates installation. At the same time, after the sealing cap 106 and the protective tube sleeve 101 are tightened and fixed, the clamping and fixing ring 1061 provides a clamping force for the second water ring 10812, which can also increase the contact surface between the second water ring 10812 and the protective tube sleeve 101, further improving the waterproof effect.

[0075] The protective sleeve 101 has fixed protrusions 1010 at both ends, and a limiting notch 1011 is formed between adjacent fixed protrusions 1010. The sealing cover 106 and the bearing seat 105 are respectively provided with structures that match the two ends of the protective sleeve 101. This can provide a greater fastening effect in the circumferential direction of the protective sleeve 101, and at the same time effectively reduce the overall weight of the drive mechanism.

[0076] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A waterproof drive mechanism characterized by comprising: The utility model relates to a waterproof driving mechanism, including: Protective sleeve; Bearing seat, be equipped with first waterproof structure between one end of protective sleeve, Sealing cover, be equipped with second waterproof structure between the other end of protective sleeve, and second waterproof structure includes the first elastic waterproof cover of partial cladding in sealing cover, Driving motor, be equipped with in protective sleeve, including: Motor main part has output end, Output rotating shaft is located output end, and output rotating shaft is equipped with shaft connector, and output rotating shaft realizes transmission with shaft connector through sealing cover, Power supply lead is located the one end of motor main part away from output end, and goes out bearing seat, Wherein, bearing seat, protective sleeve, sealing cover realize waterproof to motor main part, first waterproof structure prevents liquid from bearing seat into protective sleeve, and second waterproof structure prevents liquid from output rotating shaft into protective sleeve, the surface of first elastic waterproof cover and output rotating shaft is equipped with a plurality of first water retaining ring, and each first water retaining ring is provided as outwardly inclined, and first water retaining ring is contacted with output rotating shaft and is outwardly inclined and elastically extends, Preferably, the sealing cover includes a sealing cover main body, and a compression fixing ring is arranged on the inner side of the sealing cover main body, the compression fixing ring is fixed in cooperation with a fixing groove arranged on the first elastic waterproof cover, so that the first elastic waterproof cover and the sealing cover form an integral whole.

2. The waterproof drive mechanism of claim 1, wherein, The number of the first water retaining rings is three, and each first water retaining ring is in interference fit with the surface of the output rotating shaft.

3. The waterproof drive mechanism of claim 1, wherein, The surface of the output rotating shaft is provided with a waterproof groove matched with the first water retaining ring, and the waterproof groove partially accommodates the first water retaining ring.

4. The waterproof drive mechanism of claim 1, wherein, A plurality of second water retaining rings are arranged between the first elastic waterproof cover and the protective sleeve, and the second water retaining rings can increase the contact area with the protective sleeve when the sealing cover and the protective sleeve are fixed. Preferably, the first waterproof structure includes a second elastic waterproof cover in contact with the bearing seat at the end portion, and a plurality of third water retaining rings are arranged on the contact surface between the second elastic waterproof cover and the protective sleeve. Preferably, the second elastic waterproof cover partially clads the end portion of the bearing seat.

5. The waterproof drive mechanism of claim 1, wherein, The shaft connector is provided with a plurality of limiting grooves, and each limiting groove is provided with a slope at the bottom.

6. The waterproof drive mechanism of claim 1, wherein, The bearing seat is provided with a limiting step and a bearing supporting platform, and a fixing groove is arranged on the outer side of the bearing supporting platform, and a clamping spring for fixing the bearing is arranged in the fixing groove. Preferably, the waterproof driving mechanism further includes: A fixing seat movably connected with the bearing seat, and a movable shaft is arranged between the fixing seat and the bearing seat, and the bearing seat and the fixing seat can rotate around the movable shaft as the rotating shaft; Preferably, the fixing seat is provided with a wire hole, and the bearing seat is provided with a wire passing hole in communication with the wire hole.

7. The waterproof drive mechanism of claim 6, wherein, The bearing seat is provided with a wire passing hole.

8. The waterproof drive mechanism of claim 6, wherein, The sealing cover includes a sealing cover main body and a compression fixing ring arranged on the inner side, and the compression fixing ring is fixed in cooperation with a fixing groove arranged on the first elastic waterproof cover. Preferably, after the sealing cover and the protective sleeve are tightly fixed, the compression fixing ring provides a compression force for the second water retaining ring.

9. A waterproof drive mechanism according to any one of claims 1 to 8, wherein The two end portions of the protective sleeve are respectively provided with fixing protrusions, and the limiting notches are formed between the adjacent fixing protrusions, and the sealing cover and the bearing seat are respectively provided with structures matched with the two end portions of the protective sleeve.

10. A cleaning device comprising a cleaning head and a handle assembly movably connected to the cleaning head, the cleaning head being provided with a roller and a drive mechanism for driving the roller to rotate, characterized in that the handle assembly comprises a handle and a drive member, the drive member being arranged to be driven by the drive mechanism of the cleaning head and to drive the handle to rotate. The driving mechanism is the waterproof driving mechanism as claimed in any one of claims 1-9.

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