Cleaning equipment

Abstract

This application relates to the field of cleaning equipment technology, and more particularly to a cleaning device. Addressing the problem of difficult assembly and disassembly of the roller brush device, this application proposes a cleaning device comprising a device body, a drive unit, and a roller brush device. The drive unit is mounted on the device body, and the roller brush device can move along the drive axis, achieving power engagement with the drive end during installation and retracting axially during disassembly; simultaneously, the side of the roller brush device away from the drive end forms a detachable limiting connection with the device body. This solution simplifies the replacement and maintenance process of the roller brush device, improves assembly efficiency, and helps ensure the stability of the transmission connection and the long-term reliability of the entire machine.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more particularly to a cleaning device. Background Technology

[0002] Window cleaning robots are smart home appliances that replace manual window cleaning at heights. They rely on vacuum adsorption and walking wiping to automatically clean vertical glass, making them particularly suitable for high-rise windows.

[0003] In related technologies, cleaning equipment includes a device body and a roller brush device. The roller brush device can rotate relative to the device body and can wipe away stubborn stains on the surface to be cleaned, thereby improving cleaning ability.

[0004] However, the roller brush device is inconvenient to replace when it gets dirty or damaged. Summary of the Invention

[0005] This application provides a cleaning device that achieves high ease of disassembly of the roller brush device.

[0006] This application provides a cleaning device, including:

[0007] Equipment body,

[0008] The drive unit, with one axial end connected to the equipment body;

[0009] The roller brush device is configured to move axially to be connected or disconnected from the drive unit at the other end of the drive unit along the axial direction. The end of the roller brush device away from the drive unit is detachably connected to the equipment body to limit the axial displacement of the roller brush device.

[0010] By configuring a device body, a drive unit connected to the device body, and a roller brush device that can move axially and can be connected or disconnected from the drive unit along the axial direction, and by detaching the end of the roller brush device away from the drive unit from the device body and restricting its axial displacement, the roller brush device can be disconnected from the drive unit by axial movement after being disconnected from the device body. This allows for the removal of the drive unit without disassembling it. Installation follows the same principle, thus making the disassembly and installation of the roller brush device highly convenient.

[0011] In one possible embodiment, the device body is provided with a receiving cavity;

[0012] The drive unit is hinged to the equipment body, and the drive unit rotates relative to the equipment body to be located inside the receiving cavity or partially outside the receiving cavity;

[0013] The roller brush assembly is detachably connected to the equipment body to restrict the drive unit from being located within the receiving cavity.

[0014] The drive unit is located within the receiving cavity, thus partially housing the roller brush assembly. This allows the cleaning surface of the roller brush assembly to protrude slightly from the equipment body. The drive unit portion is located outside the receiving cavity, providing space for axial movement of the roller brush assembly during installation and removal.

[0015] In one possible embodiment, the roller brush device includes:

[0016] A rotating assembly, which is either connected to or disconnected from the other end of the drive unit.

[0017] The fixed component is located at the end of the rotating component away from the drive device. The rotating component is rotatably arranged relative to the fixed component, and the fixed component and the rotating component are fixedly arranged axially. The fixed component is detachably connected to the equipment body.

[0018] The rotational power output by the drive unit is transmitted to the rotating component, causing it to rotate. Because the rotating component is rotatably positioned relative to the fixed component, the fixed component remains stationary relative to the equipment body. This helps ensure the reliability of the connection between the fixed component and the equipment body, preventing the limit function from failing due to rotation.

[0019] In one possible embodiment, the rotating component includes:

[0020] The roller has an installation cavity;

[0021] The mating component is located inside the mounting cavity and is connected to the inner wall of the mounting cavity. The mating component has a mating cavity that communicates with the mounting cavity.

[0022] Along the cross section perpendicular to the axial direction, the cross section of the mating cavity is non-circular. The other end of the drive device matches the mating cavity, and the other end of the drive device is inserted into the mating cavity for transmission connection with the rotating assembly.

[0023] Because the drive end and the mating cavity are connected by a non-circular matching connection, slippage and phase shift in the circumferential direction can be effectively avoided during transmission, thereby reducing starting impact and improving torque transmission stability. At the same time, the mating component is located inside the roller's mounting cavity and is fixedly connected to the inner wall, allowing the driving force to be transmitted to the roller through a shorter transmission path.

[0024] In one possible embodiment, the driving device includes:

[0025] The drive assembly is connected to the device body at one end along the axial direction away from the drive shaft.

[0026] The roller brush drive shaft includes a shaft body and a transmission part disposed around the shaft body. The shaft body is connected to the drive shaft of the drive assembly.

[0027] The mating cavity includes a shaft cavity and a transmission cavity that are interconnected. The shaft part is inserted into the shaft cavity and the shaft cavity matches the shaft part. The transmission part is inserted into the transmission cavity and the transmission part contacts the two circumferentially opposite inner walls of the transmission cavity.

[0028] Understandably, the shaft body of the roller brush drive shaft can form a coaxial guide within the shaft cavity, keeping the rotation center stable. The peripheral transmission part is embedded in the transmission cavity, transmitting drive torque stably to the subsequent roller brush assembly through its engagement with the inner wall of the transmission cavity. Because the shaft cavity and transmission cavity are interconnected, the shaft body and transmission part can respectively complete center positioning and circumferential transmission engagement in a single insertion action, thereby reducing alignment errors and improving assembly consistency.

[0029] In one possible embodiment, the number of transmission parts is at least two, and the at least two transmission parts are evenly distributed along the circumference of the shaft body.

[0030] The number of transmission cavities is at least two, and each transmission cavity is set in a one-to-one correspondence with the transmission part.

[0031] Because the transmission units and transmission chambers are one-to-one and evenly distributed, the roller brush drive shaft can obtain relatively balanced circumferential support and torque distribution during rotation, thereby reducing vibration, meshing impact, and localized wear caused by eccentric loads. As the drive assembly continues to work, each transmission unit stably transmits torque within its corresponding transmission chamber, enabling the roller brush device to maintain a continuous and stable rotation state, completing the wiping or brushing action on the surface being cleaned. Since multi-point transmission can significantly improve load distribution, in long-term operation, it can reduce wear and increased clearance caused by concentrated force at a single transmission interface, thus maintaining transmission reliability and overall machine stability.

[0032] In one possible embodiment, the transmission cavity is inclined along two circumferentially opposite inner walls, and along the axial direction from the end away from the drive assembly to the end near the drive assembly, with the two inner walls being far apart from each other.

[0033] When the transmission part enters the transmission cavity axially, it can be guided and positioned by the inclined wall, making it easier for the transmission part to be in the predetermined mating position.

[0034] In operation, the contact between the transmission unit and the inclined inner wall converts part of the radial force into an axial component. This component causes the roller brush to tend to move axially toward the drive unit. Thus, the roller brush is less likely to move axially away from the drive unit. At the same time, due to the restriction of the inclined surface, the roller brush is less likely to move axially toward the drive unit, thereby ensuring stable cooperation with the transmission unit and reducing meshing misalignment caused by vibration, impact or long-term wear.

[0035] And / or, the drive unit also includes a buffer element disposed on the outer wall of the transmission part and / or the inner wall of the transmission cavity.

[0036] The buffer component creates a flexible and buffered force transmission interface between the transmission unit and the transmission cavity. This not only improves the smoothness of the insertion and connection and the durability after repeated disassembly and assembly, but also ensures that the transmission connection is stably maintained during the operation of the cleaning equipment. This reduces the attenuation of transmission performance caused by vibration, noise and wear, thereby improving the smoothness of the overall machine operation and its service life.

[0037] In one possible embodiment, the fixing component includes:

[0038] The fixing component is located at the end of the rotating assembly away from the drive device. The rotating assembly is rotatably arranged relative to the fixing component, and the fixing component is fixedly arranged with the rotating assembly along the axial direction. The fixing component is detachably connected to the equipment body.

[0039] Sliding component, which is axially slidably connected to the fixed component;

[0040] The elastic element is connected to the fixed element and the sliding element along the axial direction. Under the elastic force of the elastic element, the sliding element is detachably connected to the equipment body.

[0041] By detachably connecting the fixed components and sliding components to the equipment body, the entire fixed component can be removed from the equipment body.

[0042] In one possible embodiment, the fixing member is provided with a first limiting part, and the device body is provided with a second limiting part. The first limiting part and the second limiting part are inserted into each other to at least limit the displacement of the roller brush device along the axial direction toward the drive device.

[0043] In this way, the detachable connection via plug-in means that the connection and disconnection of the first and second limiting parts are highly convenient.

[0044] In one possible embodiment, one of the first limiting portion and the second limiting portion is a slot, and the other is a plug.

[0045] The slots and plugs are relatively easy and inexpensive to manufacture, which helps to reduce the overall cost of cleaning equipment.

[0046] In one possible embodiment, a third limiting part is provided at one end of the slider that is axially away from the drive device, and a fourth limiting part that matches the third limiting part is provided on the device body.

[0047] The third limiting part engages with the fourth limiting part to restrict the drive device from being located in the receiving cavity and to restrict the axial displacement of the roller brush device away from the drive device.

[0048] In this way, pressing the sliding member disengages the third and fourth limiting parts, and after the external force is removed, the third and fourth limiting parts snap into place, making the connection operation highly convenient.

[0049] In one possible embodiment, one of the third limiting part and the fourth limiting part is a card slot, and the other is a card block that matches the card slot.

[0050] The slots and blocks are relatively easy and inexpensive to manufacture, which helps reduce the overall cost of cleaning equipment.

[0051] In one possible embodiment, the rotating assembly is rotatably disposed relative to the fixed member via a first bearing;

[0052] The fastener is connected to the inner wall of the inner ring of the first bearing, and the fastener abuts against the end face of the inner ring;

[0053] The rotating assembly is provided with a first bearing housing, which is connected to the outer wall of the outer ring of the first bearing. Along the axial direction, the first bearing housing abuts against the end face of the outer ring and the fixing member.

[0054] When the rotating component tends to move axially away from the drive component, it cannot move because the first bearing housing of the rotating component is abutted and limited by the fixing member. When the rotating component tends to move axially towards the drive component, it cannot move because the first bearing housing of the rotating component is abutted and limited by the outer ring of the first bearing. Alternatively, when the rotating component tends to move axially away from the drive component, it cannot move because the first bearing housing of the rotating component is abutted and limited by the outer ring of the first bearing. When the rotating component tends to move axially towards the drive component, it cannot move because the first bearing housing of the rotating component is abutted and limited by the fixing member. In this way, the fixed component and the rotating component can be fixed along the axial direction.

[0055] In one possible embodiment, the driving component includes:

[0056] shell;

[0057] The drive unit has its drive shaft located outside the housing, while the rest of the unit is located inside the housing.

[0058] The rotating base is connected to the outer casing and hinged to the equipment body.

[0059] The housing not only seals and protects the drive components, but also provides a structural basis for the installation of the rotating base. After the drive components output rotational power inside the housing, it is transmitted to the roller brush device via the drive shaft. The rotating base enables the drive device to maintain a swingable installation posture relative to the main body of the equipment.

[0060] In one possible embodiment, the driving component further includes:

[0061] The first seal is located inside the housing and is disposed between the end face of the housing on the axial side near the drive shaft and the end face of the drive member on the drive shaft side.

[0062] And / or, a second seal, the second seal being located inside the housing, a portion of the rotating seat being located inside the housing, the second seal being disposed between the outer wall of the rotating seat and the inner wall of the housing;

[0063] And / or, wire harness seal, the rotating seat is provided with a wire outlet, and the wire harness seal is disposed on the inner wall of the wire outlet;

[0064] The first seal is located between the end face of the housing and the end face of the drive component, thus forming an end seal around the drive shaft. The second seal continuously adheres to the outer wall of the rotating seat and the inner wall of the housing, inhibiting the intrusion of liquid and dust along the annular gap direction. The wiring harness is led out through the outlet on the rotating seat, and the wiring harness seal elastically covers its outer periphery, ensuring that the wiring harness remains sealed even when it moves slightly with the rotating seat. Based on the above-mentioned fit, the probability of moisture and dirt entering the interior can be reduced, thus reducing the risk of damage to the drive component.

[0065] And / or, the driver component also includes:

[0066] The second bearing has its inner ring connected to the outer wall of the rotating seat.

[0067] The second bearing housing is connected to the outer ring of the second bearing.

[0068] The third seal is disposed between the outer wall of the second bearing housing and the inner wall of the roller.

[0069] The third seal on the outer wall of the second bearing housing contacts the inner wall of the drum. The second bearing housing and the third seal provide support for the drum, allowing for multi-point axial support and helping to maintain the drum's center of gravity, thus reducing vibration and noise. The third seal is positioned between the outer wall of the second bearing housing and the inner wall of the drum, providing a supplementary seal to the annular gap. This prevents water mist, droplets, cleaning agents, and dust generated during cleaning from penetrating the drive component along the outer wall of the second bearing housing. Attached Figure Description

[0070] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0071] Figure 1 A schematic diagram of the cleaning equipment provided in this application;

[0072] Figure 2This application provides a structural schematic diagram of the floating plate, drive unit, and roller brush device in the cleaning equipment;

[0073] Figure 3 for Figure 2 Another structural diagram;

[0074] Figure 4 for Figure 3 Sectional view along direction AA;

[0075] Figure 5 A schematic diagram illustrating the disassembly process of the roller brush device in the cleaning equipment provided in this application;

[0076] Figure 6 for Figure 5 A sectional view;

[0077] Figure 7 A schematic diagram showing the state in which the drive unit is located within the receiving cavity in the cleaning equipment provided in this application;

[0078] Figure 8 A schematic diagram showing the state in which the drive unit portion of the cleaning equipment provided in this application is located outside the receiving cavity;

[0079] Figure 9 for Figure 4 A magnified view of a section at point B in the middle;

[0080] Figure 10 An exploded view of the roller brush device in the cleaning equipment provided in this application;

[0081] Figure 11 A schematic diagram of the components and rollers in the cleaning equipment provided in this application;

[0082] Figure 12 for Figure 11 Another structural diagram;

[0083] Figure 13 A schematic diagram of the structure of the roller brush drive shaft in the cleaning equipment provided in this application;

[0084] Figure 14 This is a structural schematic diagram of the fixing component in the cleaning equipment provided in this application;

[0085] Figure 15 A schematic diagram of the structure of the fixing component in the cleaning equipment provided in this application;

[0086] Figure 16 for Figure 3 A magnified view of a section at point C;

[0087] Figure 17 A schematic diagram of the sliding component in the cleaning equipment provided in this application;

[0088] Figure 18 A schematic diagram of the fourth limiting part in the cleaning equipment provided in this application;

[0089] Figure 19 for Figure 4 A magnified view of a section at point D;

[0090] Figure 20 An exploded view of the drive unit in the cleaning equipment provided in this application.

[0091] Explanation of reference numerals in the attached figures:

[0092] 100 - Equipment body; 110 - Receiving cavity; 120 - Second limiting part; 130 - Fourth limiting part;

[0093] 200 - Drive unit; 210 - Drive assembly; 211 - Housing; 212 - Drive element; 213 - Rotating seat; 214 - First seal; 215 - Second seal; 216 - Wiring harness seal; 217 - Second bearing; 218 - Second bearing housing; 219 - Third seal; 220 - Brush drive shaft; 221 - Shaft body; 222 - Transmission part; 230 - Buffer element;

[0094] 300 - Roller brush device; 310 - Rotating assembly; 311 - First bearing seat; 312 - Roller; 3121 - Mounting cavity; 313 - Mating part; 3131 - Mating cavity; 3131a - Shaft cavity; 3131b - Transmission cavity; 320 - Fixing assembly; 321 - Fixing part; 3211 - First limiting part; 322 - Sliding part; 3221 - Third limiting part; 323 - Elastic part; 330 - First bearing.

[0095] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0096] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0097] Window cleaning robots are commonly used in residential windows, commercial shop windows, office building glass partitions, and high-rise building glass curtain walls. In these applications, the equipment typically needs to be attached to the surface being cleaned and operate stably, using cleaning components to repeatedly wipe or scrub dust, water stains, oil, and other adhering dirt from the glass surface.

[0098] In related technologies, window cleaning robots include a main body, a drive unit, and a roller brush unit. The drive unit and the roller brush unit are connected by a transmission mechanism. Both the drive unit and the roller brush unit are detachably connected to the main body. When the roller brush unit becomes dirty or damaged, the drive unit and roller brush unit must be completely removed from the main body, and then the roller brush unit must be detached from the drive unit. During installation, the roller brush unit must be connected to the drive unit before the entire assembly is mounted onto the main body. Therefore, replacing the roller brush unit is inconvenient.

[0099] To address the aforementioned problems, a cleaning device is proposed, comprising a device body, a drive unit, and a roller brush assembly. One axial end of the drive unit is connected to the device body. The roller brush assembly is configured to move axially, selectively engaging or disengaging with the other axial end of the drive unit. The end of the roller brush assembly furthest from the drive unit is detachably connected to the device body to limit its axial displacement. By basing the assembly and disassembly of the roller brush assembly on the relationship between axial movement and the detachable distal connection, the roller brush assembly can be individually disassembled and installed when maintenance or replacement is required.

[0100] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0101] This application provides a cleaning device, which can be a window cleaning robot, a floor sweeper, a floor scrubber, or a sweeping robot, etc. The following description uses a window cleaning robot as an example.

[0102] Figure 1 A schematic diagram of the cleaning equipment provided in this application. Figure 2 This application provides a structural schematic diagram of the equipment body, drive unit, and roller brush unit in the cleaning equipment. Figure 3 for Figure 2 A structural diagram from another angle. Figure 4 for Figure 3 A sectional view along direction AA.

[0103] See Figures 1 to 4As shown, the cleaning equipment includes a main body 100, a drive unit 200, and a roller brush unit 300.

[0104] The equipment body 100 provides fixed support for the drive unit 200 and the roller brush unit 300, and provides structural reference and assembly constraints for other components of the machine. Specifically, the drive unit 200 and the roller brush unit 300 can be mounted on the floating plate of the cleaning equipment.

[0105] The drive unit 200 is a power actuation component for outputting rotational power to the roller brush device 300. One end of the drive unit 200 is connected to the device body 100 along the axial direction, and the other end forms a transmission output end corresponding to the roller brush device 300, so that the driving force is directly transmitted to the roller brush device 300 when the device is running.

[0106] It should be noted that the axial direction refers to the axis of the drive shaft of the drive device 200. The axial direction can be the direction of the X-axis in the figure. Specifically, the positive X-axis direction is the direction in which the roller brush device 300 moves closer to the drive device 200, and the negative X-axis direction is the direction in which the roller brush device 300 moves away from the drive device 200. The directional descriptions below are consistent with this and will not be repeated.

[0107] The roller brush device 300 is a cleaning device that directly contacts the surface to be cleaned and performs a rolling cleaning action. The roller brush device 300 is configured to move axially to be either driveably connected to or disengaged from the other end of the drive device 200 along the axial direction. When the roller brush device 300 and the drive device 200 are driveably connected, the function of the roller brush device 300 is to convert the rotational power output by the drive device 200 into a frictional cleaning action on the glass surface. The roller brush device 300 rotates about its axial axis.

[0108] In some embodiments, after the roller brush device 300 and the drive device 200 are connected by a transmission, the displacement of the roller brush device 300 in the direction of approaching the drive device 200 can be limited. For example, this can be achieved by setting a step stop or end face pressing.

[0109] The end of the roller brush assembly 300 furthest from the drive unit 200 is detachably connected to the equipment body 100 to limit the axial displacement of the roller brush assembly 300. The detachable connection refers to the connection method between the end of the roller brush assembly 300 furthest from the drive unit 200 and the equipment body 100 used for installation limiting, assembly retention, and disassembly / release. After connection, the axial position of the roller brush assembly 300 can be maintained, and it can be disengaged manually or with tools when maintenance is required, thereby allowing the roller brush assembly 300 to move axially and separate from the drive unit 200.

[0110] The axial direction is aligned with the length direction of the roller brush device 300. During assembly, the axial movement of the roller brush device 300 is used to align the transmission end of the roller brush device 300 and insert it into the output end of the drive device 200. During disassembly, it is used to disengage the roller brush device 300 from the transmission engagement.

[0111] Understandably, the drive unit 200 outputs rotational power under the support of the equipment body 100. The roller brush device 300 maintains axial stability under the limiting effect of the detachable connection and transmits torque through its engagement with the other end of the drive unit 200, thereby enabling the roller brush device 300 to rotate continuously on the surface to be cleaned and complete the scrubbing operation. When maintenance, cleaning, or replacement of the roller brush device 300 is required, first disconnect the detachable connection between the end of the roller brush device 300 away from the drive unit 200 and the equipment body 100, and then axially disengage the roller brush device 300 from its transmission engagement with the drive unit 200 to achieve quick disassembly. Similarly, during installation, the roller brush device 300 is moved axially to the position where it engages with the drive unit 200 and detachably connected to the equipment body 100 to complete the installation.

[0112] In some embodiments, one end of the drive device 200 along the axial direction is fixedly connected to the device body 100, for example, by fasteners such as screws.

[0113] See Figure 2 and Figure 3 As shown, in one possible embodiment, the device body 100 is provided with a receiving cavity 110. The receiving cavity 110 is a space provided at the bottom of the cleaning device for accommodating the drive unit 200 and part of the roller brush unit 300.

[0114] Figure 5 This is a schematic diagram illustrating the disassembly process of the roller brush device in the cleaning equipment provided in this application. Figure 6 for Figure 5 sectional view, Figure 7 This is a schematic diagram showing the state in which the drive unit of the cleaning equipment provided in this application is located within the receiving cavity. Figure 8 A schematic diagram showing the state in which the drive unit portion of the cleaning equipment provided in this application is located outside the receiving cavity.

[0115] See Figures 5 to 8 As shown, the drive unit 200 is hinged to the device body 100, and the drive unit 200 rotates relative to the device body 100 to be located inside or partially outside the receiving cavity 110. The roller brush device 300 is detachably connected to the device body 100 to limit the axial displacement of the roller brush device 300 and to limit the drive unit 200 to be located inside the receiving cavity 110.

[0116] It should be noted that one end of the drive device 200 is rotatably connected to the device body 100 via a hinge, pivot, pivot pin, or equivalent hinge structure, thereby enabling the drive device 200 to rotate relative to the device body 100 around the hinge axis. After the detachable connection between the roller brush device 300 and the device body 100 is released, the roller brush device 300 no longer limits the end of the drive device 200, and the drive device 200 can drive the roller brush device 300 to rotate around the hinge point to flip outwards from the receiving cavity 110.

[0117] Understandably, when the cleaning equipment is in operation, the drive unit 200 is located within the receiving cavity 110, thereby placing a portion of the roller brush device 300 within the receiving cavity 110. The cleaning surface of the roller brush device 300 protrudes slightly from the equipment body 100, so that the bottom end of the cleaning surface of the roller brush device 300 is flush with the cleaning surface of the cloth placed on the equipment body 100. When it is necessary to install or remove the roller brush device 300, the drive unit 200 is pulled to rotate, causing a portion of the drive unit 200 to be located outside the receiving cavity 110, thus providing space for axial movement of the roller brush device 300 during installation and removal.

[0118] In some embodiments, a rotating shaft is provided, which is inserted into a rotating hole in the device body 100. The rotating shaft rotates relative to the device body 100 and is threadedly connected to the roller brush device 300. Two retaining rings are provided on the rotating shaft, one retaining ring abutting against the side of the device body 100 away from the drive device 200 and the other retaining ring abutting against the side of the device body 100 facing the drive device 200, thereby restricting the axial movement of the roller brush device 300.

[0119] During disassembly, the retaining rings can be removed, and the rotating shaft can be rotated to separate it from the roller brush device 300. Moving the rotating shaft will remove it from the rotating hole of the device body 100 and detach it from the roller brush device 300. During installation, the roller brush device 300 is connected to the drive device 200. The rotating shaft is inserted into the roller brush device 300 through the rotating hole of the device body 100, and then connected to the roller brush device 300 by rotating the shaft. Finally, the two retaining rings are installed onto the rotating shaft.

[0120] In some embodiments, when the drive device 200 is connected to the roller brush device 300, the drive device 200 can restrict the roller brush device 300 from continuing to approach the drive device 200. This is illustrated by the positive X-axis direction in the figure. A rotating shaft is provided, inserted into a rotating hole in the device body 100, and rotates relative to the device body 100. The shaft is threadedly connected to the roller brush device 300. By providing a retaining ring on the rotating shaft, which abuts against the side of the device body 100 away from the drive device 200, the roller brush device 300 is restricted from continuing to move away from the drive device 200.

[0121] Figure 9 for Figure 4 A magnified view of a section at point B.

[0122] See Figure 9 As shown, in one possible embodiment, the roller brush device 300 includes a rotating assembly 310 and a fixing assembly 320.

[0123] The rotating assembly 310 is either connected or disconnected from the other end of the drive device 200. The rotating assembly 310 is used to receive the power output from the drive device 200 to rotate.

[0124] The fixed component 320 is located at the end of the rotating component 310 away from the drive device 200. The rotating component 310 is rotatably arranged relative to the fixed component 320, and the fixed component 320 and the rotating component 310 are fixedly arranged along the axial direction. The fixed component 320 is detachably connected to the equipment body 100.

[0125] The rotating component 310 and the fixed component 320 can achieve a relative rotational relationship through bearings, sliding bearings, bushings, shafts or similar coaxial mating structures. That is, the fixed component 320 provides end support for the rotating component 310 without affecting its rotation. At the same time, the two are kept relatively fixed in the axial direction by means of stepped stops, slot limits, interference fits or end face pressing, so as to ensure that the fixed component 320 will not loosen or displace relative to the rotating component 310 in the axial direction.

[0126] The detachable connection between the fixed component 320 and the equipment body 100 can be in the form of plug-in connection, snap-on connection, screw fastening connection or elastic locking connection.

[0127] Understandably, the other end of the drive device 200 is connected to the rotating component 310 for transmission. The rotational power output by the drive device 200 is transmitted to the rotating component 310, causing the rotating component 310 to begin rotating. Because the rotating component 310 is rotatably positioned relative to the fixed component 320, the fixed component 320 can remain stationary relative to the equipment body 100. This helps ensure the reliability of the connection between the fixed component 320 and the equipment body 100, and prevents the limit function from failing due to rotation.

[0128] Figure 10 An exploded view of the roller brush device 300 in the cleaning equipment provided in this application.

[0129] See Figure 9 and Figure 10 As shown, in one possible embodiment, the rotating assembly 310 includes a roller 312 and a mating member 313.

[0130] The roller 312 can be a cylindrical component used to support the cleaning contact surface and rotate around an axis under driving action. Its outer periphery can usually be provided with bristles, a wiping layer or other elastic cleaning layer to achieve the function of rolling and wiping the glass surface. The roller 312 is provided with a mounting cavity 3121. The mounting cavity 3121 can be a hollow receiving space provided inside the roller 312 to accommodate the mating part 313 and part of the driving device 200.

[0131] The mating member 313 is used to transmit the torque of the drive device 200 to the roller 312. The mating member 313 is located inside the mounting cavity 3121 and is connected to the inner wall of the mounting cavity 3121. Exemplarily, the mating member 313 and the roller 312 can be integrally machined. Alternatively, the mating member 313 and the roller 312 can be assembled together.

[0132] Figure 11 This is a structural diagram of the mating parts and rollers in the cleaning equipment provided in this application. Figure 12 for Figure 11 A structural diagram from another angle.

[0133] See Figure 11 and Figure 12 As shown, the mating component 313 is provided with a mating cavity 3131, which communicates with the mounting cavity 3121. Along a section perpendicular to the axial direction, the cross-section of the mating cavity 3131 is non-circular. The other end of the driving device 200 matches the mating cavity 3131, and the other end of the driving device 200 is inserted into the mating cavity 3131 for transmission connection with the rotating assembly 310, thereby avoiding the free-spinning phenomenon and torque loss that may occur in a circular hole connection.

[0134] It should be noted that if the cross-sections are the same or similar, or if the rotation of the other end of the driving device 200 can drive the mating part 313 to rotate through the inner wall of the mating cavity 3131, it can be considered that the other end of the driving device 200 matches the mating cavity 3131.

[0135] The non-circular cross-section of the mating cavity 3131 can be constructed as a D-shape, hexagon, rectangle, plum blossom shape, or other polygonal irregular shape to adapt to the end shape of different drive ends. The other end of the drive device 200 can be machined into an irregular end shape that is the same as or similar to that of the mating cavity 3131. Its end shape can be a non-cylindrical, a shaft end with a flat cut edge, or a transmission head with a ridge edge to improve the anti-slip ability and directional assembly effect after insertion.

[0136] Understandably, because the drive end and the mating cavity 3131 are connected by an irregular shape, slippage and phase shift in the circumferential direction can be effectively avoided during transmission, thereby reducing starting impact and improving torque transmission stability. At the same time, the mating part 313 is located in the mounting cavity 3121 of the roller 312 and is fixedly connected to the inner wall, so that the driving force can be transmitted to the roller 312 through a shorter transmission path.

[0137] See Figure 3 As shown, in one possible embodiment, the drive unit 200 includes a drive assembly 210 and a brush drive shaft 220.

[0138] The drive assembly 210 is connected to the device body 100 at one end along the axial direction away from the drive shaft.

[0139] Figure 13 This is a schematic diagram of the structure of the roller brush drive shaft in the cleaning equipment provided in this application.

[0140] See Figure 13 As shown, the roller brush drive shaft 220 includes a shaft body 221 and a drive section 222 disposed around the shaft body 221. The shaft body 221 is connected to the drive shaft of the drive assembly 210.

[0141] See Figure 11 and Figure 12 As shown, the mating cavity 3131 includes a shaft cavity 3131a and a transmission cavity 3131b that are interconnected. The shaft portion 221 is inserted into the shaft cavity 3131a, and the shaft cavity 3131a matches the shaft portion 221. The transmission portion 222 is inserted into the transmission cavity 3131b. Along the circumference of the shaft portion 221, the transmission portion 222 contacts the two opposing inner walls of the transmission cavity 3131b, thereby transmitting torque. The shaft portion 221 and the shaft cavity 3131a are coaxially arranged.

[0142] The shaft body 221 is used to establish a transmission relationship with the drive shaft, and is coaxially arranged with the drive shaft of the drive assembly 210. The shaft body 221 can be inserted into the drive shaft, connected by a pin or coupling, etc., and the drive shaft drives the entire roller brush drive shaft 220 to rotate through the shaft body 221. The transmission part 222 is used to form a circumferential fit with the transmission cavity 3131b in the mating cavity 3131 to drive the mating part 313 to rotate.

[0143] In one possible embodiment, the shaft portion 221 may be a solid cylindrical shaft, a hollow cylindrical shaft, or a stepped shaft. The transmission portion 222 may be a spherical block, a rib, a key, a flat block, or a polygonal transmission block, etc. The outer diameter of the shaft portion 221 may be smaller than the inner diameter of the shaft cavity 3131a to form an insertion gap. The external dimensions of the transmission portion 222 should match the transmission cavity 3131b to ensure effective torque transmission after insertion.

[0144] Understandably, the shaft body 221 of the roller brush drive shaft 220 can form a coaxial guide within the shaft body cavity 3131a to keep the rotation center stable, while the transmission part 222 on its periphery is embedded in the transmission cavity 3131b, and transmits the drive torque stably to the subsequent roller brush device 300 through the cooperation with the inner wall of the transmission cavity 3131b. Since the shaft body cavity 3131a and the transmission cavity 3131b are interconnected, the shaft body 221 and the transmission part 222 can complete the center positioning and circumferential transmission cooperation respectively in one insertion action, thereby reducing alignment errors and improving assembly consistency.

[0145] See Figure 12 and Figure 13 As shown, in one possible embodiment, the number of transmission parts 222 is at least two, and the at least two transmission parts 222 are evenly distributed along the circumference of the shaft part 221. The circumferential spacing of the transmission parts 222 can be evenly divided into 360° sections. The number of transmission cavities 3131b is at least two, and each transmission cavity 3131b is provided in a one-to-one correspondence with a transmission part 222.

[0146] Understandably, because the transmission units 222 correspond one-to-one with and are evenly distributed in the transmission cavities 3131b, the roller brush drive shaft 220 can obtain relatively balanced circumferential support and torque distribution during rotation, thereby reducing vibration, meshing impact, and localized wear caused by eccentric loads. As the drive assembly 210 continues to work, each transmission unit 222 stably transmits torque within its corresponding transmission cavity 3131b, enabling the roller brush device 300 to maintain a continuous and stable rotation state, completing the wiping or brushing action on the surface being cleaned. Since multi-point transmission can significantly improve load distribution, in long-term operation, it can reduce wear and increased clearance caused by concentrated force on a single transmission interface, thereby maintaining transmission reliability and overall machine stability.

[0147] Specifically, the number of transmission parts 222 can be four, and the number of transmission cavities 3131b can be four.

[0148] In one possible embodiment, the transmission cavity 3131b is inclined along two circumferentially opposite inner walls, and along the axial direction from one end away from the drive assembly 210 to one end near the drive assembly 210, with the two inner walls being far apart from each other.

[0149] In one possible embodiment, the two inner walls can be straight inclined surfaces, curved inclined surfaces, or a combination of inclined surfaces. Their inclination angles can be matched according to the insertion force and the transmitted torque, and are typically set to a range of several to tens of degrees.

[0150] It should be noted that the two circumferentially opposite inner walls of the transmission cavity 3131b are inclined, meaning that the two opposite side walls arranged in the mating cavity 3131 for mating with the transmission part 222 of the roller brush drive shaft 220 are not parallel and form a gradually decreasing guide structure along the axial direction. When installing the roller brush device 300, moving the roller brush device 300 axially toward the drive device 200 allows for guidance and positioning by means of the inclined walls, making it easier for the transmission part 222 to be in the predetermined mating position.

[0151] When installing the roller brush device 300, it is moved axially towards the drive unit 200 until it reaches the mating position. Because the two inner walls move away from the drive assembly 210 towards the drive assembly 210, the transmission cavity 3131b forms a tapering structure. When the roller brush device 300 reaches the mating position, the distance between the two inner walls at the contact position is equal to the size of the drive shaft, thus restricting further axial movement of the roller brush device 300 towards the drive unit 200. Correspondingly, when the roller brush device 300 needs to be disassembled, it can also smoothly exit along the same inclined channel during axial retraction, reducing disassembly and assembly resistance and minimizing wear on the edges of the mating parts 313.

[0152] In operation, the contact between the transmission unit 222 and the inclined inner wall can convert part of the radial force into an axial component force. This component force will cause the roller brush device 300 to tend to move axially toward the drive device 200. In this way, the roller brush device 300 is not prone to axial movement, thereby cooperating stably with the transmission unit 222 and reducing meshing misalignment caused by vibration, impact or long-term wear.

[0153] In some embodiments, the drive device 200 further includes a buffer 230, which is disposed on the outer wall of the transmission part 222 and / or the inner wall of the transmission cavity 3131b.

[0154] The buffer 230 is an elastic transition component provided at the interface between the transmission part 222 and the transmission cavity 3131b. It is used to absorb the impact during the contact process when the transmission part 222 is inserted into the transmission cavity 3131b, establishes a transmission engagement with the transmission cavity 3131b, and when the two are separated, and to mitigate the friction generated by the relative motion, thereby reducing wear and transmission noise.

[0155] The buffer 230 can be directly set on the outer peripheral wall of the transmission part 222, or on the inner peripheral wall of the transmission cavity 3131b, or both, so that the transmission part 222 and the transmission cavity 3131b form an elastic fit or a partial pre-pressurized contact, so as to ensure that the roller brush transmission shaft 220 has good smoothness and stability when axially inserted, circumferentially transmitted and reversed out.

[0156] Specifically, the buffer 230 can be directly installed on the outer peripheral wall of the transmission part 222. In this way, after the roller brush device 300 is disassembled, the buffer 230 on the transmission part 222 can be observed, and if it is damaged or missing, it can be replaced in time.

[0157] In one possible embodiment, the buffer 230 may be configured as any one of a rubber ring, silicone ring, polyurethane elastic sleeve, foamed elastic layer or elastic coating, and may be arranged on the outer wall of the transmission part 222 and / or the inner wall of the transmission cavity 3131b in the form of continuous annular coverage, partial strip attachment, dotted distribution or segmented wrapping.

[0158] In another possible embodiment, the buffer 230 may also be made of abrasion-resistant rubber, silicone, TPE (Thermoplastic Elastomer) thermoplastic elastomer, polyurethane, or elastic composite material to balance elastic recovery, abrasion resistance, and resistance to cleaning fluid corrosion. In yet another possible embodiment, the buffer 230 may also be replaced with a spring sheet, flexible bushing, damping rubber layer, or micro-rolling contact layer, as long as it can provide cushioning and isolation during assembly and operation.

[0159] In one possible embodiment, the buffer 230 is fixed to the outer wall of the transmission part 222 or the inner wall of the transmission cavity 3131b by means of covering, bonding, embedding or integral molding.

[0160] When the roller brush device 300 moves axially and the transmission part 222 is inserted into the transmission cavity 3131b, the buffer 230 first contacts the corresponding wall surface and undergoes slight compression, changing the original rigid contact into an elastic contact, thereby absorbing the impact load generated at the moment of insertion and compensating for the gap changes between the transmission part 222 and the transmission cavity 3131b caused by processing errors, assembly errors or long-term wear.

[0161] When the drive unit 200 outputs torque, the buffer 230 can attenuate minor eccentricities and vibrations while maintaining circumferential transmission, thereby reducing meshing impact and noise during transmission.

[0162] When the roller brush device 300 needs to be removed from the drive device 200, the buffer 230 can reduce the friction and pulling during the removal process, and avoid hard scraping that could cause scratches on the outer wall of the transmission part 222 or the inner wall of the transmission cavity 3131b.

[0163] Based on the above analysis, it can be seen that the buffer 230 forms a flexible buffer force transmission interface between the transmission part 222 and the transmission cavity 3131b. This not only improves the smoothness of the insertion and the durability after repeated disassembly and assembly, but also maintains the transmission connection state stably when the cleaning equipment is working, reducing the attenuation of transmission performance caused by vibration, noise and wear, thereby improving the smoothness of the whole machine operation and service life.

[0164] Figure 14 This is a schematic diagram of the structure of the fixing component in the cleaning equipment provided in this application.

[0165] See Figure 9 and Figure 14 As shown, in one possible embodiment, the fixing component 320 includes a fixing member 321, a sliding member 322, and an elastic member 323.

[0166] The fixing member 321 is located at the end of the rotating assembly 310 away from the driving device 200. The rotating assembly 310 is rotatably arranged relative to the fixing member 321, and the fixing member 321 and the rotating assembly 310 are fixedly arranged axially. The fixing member 321 is detachably connected to the equipment body 100.

[0167] The sliding member 322 and the fixed member 321 are slidably connected along the axial direction. The elastic member 323 is connected to the fixed member 321 and the sliding member 322 along the axial direction respectively. Under the elastic force of the elastic member 323, the sliding member 322 is detachably connected to the equipment body 100.

[0168] The fixing member 321 is a component disposed at the end of the rotating assembly 310 and used to form an end support and locking engagement. Its function is to provide a rotational support for the rotating assembly 310 away from the drive device 200, and to serve as a detachable connection base with the device body 100, so as to limit the axial movement of the roller brush device 300 or simultaneously confine the drive device 200 within the receiving cavity 110. The fixing member 321 can abut, snap, or insert with the device body 100.

[0169] The sliding member 322 is a connecting component that can move axially relative to the fixed member 321. Its function is to selectively engage or disengage with the device body 100 during assembly or disassembly by means of axial displacement, so as to restrict the drive device 200 within the receiving cavity 110 or simultaneously restrict the axial movement of the roller brush device 300. The elastic member 323 is axially connected between the fixed member 321 and the sliding member 322, providing a continuous restoring force to the sliding member 322, so that the sliding member 322 remains extended outward and locked to the device body 100 when no external force is applied. When disassembly is required, the sliding member 322 can be retracted by overcoming the elastic force of the elastic member 323. The fixed member 321, the sliding member 322, and the elastic member 323 together constitute a telescopic end locking and reset mechanism, so that the end of the roller brush device 300 away from the drive device 200 can be reliably fixed in the installation state and can be easily released in the maintenance state.

[0170] When the roller brush device 300 is installed, the sliding member 322 moves axially relative to the fixed member 321 under the action of external force, compressing the elastic member 323, so that the sliding member 322 enters the preset fastening position or insertion position of the device body 100. When the external force is removed, the elastic member 323 releases the stored elastic potential energy and pushes the sliding member 322 back, so that the sliding member 322 and the device body 100 form a detachable connection. When maintenance or replacement is required, the user only needs to push the sliding member 322 axially to overcome the elastic force of the elastic member 323, so that it is disengaged from the locking part on the device body 100, thereby releasing the constraint between the fixed member 321 and the device body 100.

[0171] It is understandable that the fixing component 320 can be completely removed from the device body 100 by simultaneously detachably connecting the fixing component 321 and the sliding component 322 to the device body. The detachable connection between the fixing component 321 and the device body 100 does not require it to act as a limiting element.

[0172] Alternatively, the detachable connection between the fixing member 321 and the device body 100 can at least limit the axial displacement of the roller brush device 300 towards the drive device 200. By simultaneously detachably connecting the fixing member 321 and the sliding member 322 to the device body 100, a limiting effect is achieved, thereby increasing the number of connection points. This division of labor in limiting the axial position of the roller brush device 300 and confining the drive device 200 within the receiving cavity 110, or at least partially overlapping it, helps ensure the reliability of the limiting action.

[0173] Figure 15 This is a structural schematic diagram of the fastener 321 in the cleaning equipment provided in this application. Figure 16 for Figure 3 A magnified view of a section at point C.

[0174] See Figure 15 and Figure 16 As shown, in one possible embodiment, the fixing member 321 is provided with a first limiting part 3211, and the device body 100 is provided with a second limiting part 120. The first limiting part 3211 and the second limiting part 120 are inserted into each other to at least limit the axial displacement of the roller brush device 300 towards the drive device 200. The first limiting part can be matched with the first limiting part 3211 to limit the axial displacement of the roller brush device 300 towards and away from the drive device 200. Alternatively, the two can be mismatched to limit the axial displacement of the roller brush device 300 towards the drive device 200.

[0175] The first limiting part 3211 is a limiting structure provided on the fixing member 321 for end-to-end insertion with the device body 100. Essentially, it provides axial stop when the roller brush device 300 is in the installed state. The function of the first limiting part 3211 is to form a mutually cooperating positioning relationship with the second limiting part 120 on the device body 100, thereby suppressing the roller brush device 300 from moving axially toward the drive device 200 when it is subjected to cleaning resistance, reverse friction force, or vibration impact, and preventing the transmission engagement between the roller brush device 300 and the drive end from becoming loose, offset, or unstable.

[0176] The first limiting part 3211 is usually provided on the end face, peripheral side wall or local protrusion of the fixing member 321 facing the device body 100.

[0177] When installing the roller brush device 300, the roller brush device 300 is fitted onto the drive device 200, and then the roller brush device 300 and the drive device 200 are rotated to allow the first limiting part 3211 and the second limiting part 120 to engage. When disassembling the roller brush device 300, the roller brush device 300 and the drive device 200 are rotated to disengage the first limiting part 3211 and the second limiting part 120 from engagement.

[0178] Understandably, the first limiting part 3211 on the fixing member 321 and the second limiting part 120 on the device body 100 are axially inserted and engaged, together forming an end insertion limiting structure. This ensures that when the roller brush device 300 is subjected to a cleaning load or external disturbance, the side of the roller brush device 300 away from the drive end can still be stably constrained by the device body 100, thereby at least limiting the axial displacement of the roller brush device 300 towards the drive device 200. Moreover, the detachable connection via insertion makes connecting and disconnecting the connection highly convenient.

[0179] In one possible embodiment, the first limiting part 3211 and the second limiting part 120 are abutting surfaces that abut against each other.

[0180] In one possible embodiment, one of the first limiting portion 3211 and the second limiting portion 120 is a slot and the other is a plug.

[0181] The slot and the insert constitute a tongue-and-groove interlocking structure for quick positioning and limiting. The slot can be formed on the fixing component 321 or the device body 100, while the insert is disposed on another corresponding component so that they can engage in a predetermined insertion direction when they are relatively close. The function of this structure is to establish a stable interlocking relationship between the fixing component 320 and the device body 100, thereby reliably constraining the displacement of the roller brush device 300 in the direction close to the drive device 200 after it is axially assembled, and reducing the alignment difficulty during assembly. The slot and the insert are relatively easy and inexpensive to manufacture, which helps to reduce the overall cost of the cleaning equipment.

[0182] Specifically, the insert and slot are typically located at the interface between the fixing member 321 and the device body 100. After the insert enters the slot, it is positioned by the lateral constraint of the insertion surface and maintains a stable connection when subjected to external forces. The shapes of the slot and insert can be adapted to the installation space and stress conditions. For example, the slot can be a rectangular slot, dovetail slot, semi-circular slot, or stepped slot, and the insert can be a rectangular block, dovetail block, cylindrical block, or irregularly shaped block.

[0183] Figure 17 This is a structural schematic diagram of the sliding component in the cleaning equipment provided in this application. Figure 18 A schematic diagram of the fourth limiting part in the cleaning equipment provided in this application.

[0184] See Figure 17 and Figure 18 As shown, in one possible embodiment, the slider 322 is provided with a third limiting part 3221 at one end axially away from the drive device 200, and the device body 100 is provided with a fourth limiting part 130 that matches the third limiting part 3221. The third limiting part 3221 and the fourth limiting part 130 engage to restrict the drive device 200 from being located within the receiving cavity 110 and to restrict the displacement of the roller brush device 300 axially away from the drive device 200.

[0185] The third limiting part 3221 can be understood as an end limiting structure provided on the side of the slider 322 away from the drive device 200. It is used to form a snap-fit ​​with the corresponding structure on the device body 100 in the assembled state, thereby providing end constraint on the slider 322 and the roller brush device 300 linked thereto. The fourth limiting part 130 is a matching limiting structure provided on the device body 100. After the two are fitted together, the drive device 200 can be held in a predetermined position within the receiving cavity 110, and the roller brush device 300 can be restricted from retracting axially outward.

[0186] Specifically, pressing the slider 322 disengages the third limiting part 3221 and the fourth limiting part 130. After the external force is removed, the third limiting part 3221 and the fourth limiting part 130 engage, making the connection operation highly convenient.

[0187] When installing the roller brush device 300, the roller brush device 300 is fitted onto the drive device 200. The sliding member 322 is pressed so that the third limiting part 3221 is in the disengaged position. Then, the roller brush device 300 and the drive device 200 are rotated so that the first limiting part 3211 and the second limiting part 120 are inserted. The third limiting part 3221 is opposite to the fourth limiting part 130. The sliding member 322 slides under the elastic force of the elastic member 323, so that the third limiting part 3221 and the fourth limiting part 130 are engaged.

[0188] When disassembling the roller brush device 300, press the sliding member 322 to put the third limiting part 3221 in the disconnected position, and then rotate the roller brush device 300 and the drive device 200 to disengage the first limiting part 3211 and the second limiting part 120 from the insertion.

[0189] In one possible embodiment, one of the third limiting part 3221 and the fourth limiting part 130 is a card slot, and the other is an insert that matches the card slot.

[0190] The slot is a recessed limiting and mating component set on the sliding member 322 or the device body 100, and the block is a corresponding protruding mating component. When assembled, the two interlock to form an end-to-end locking relationship, which restricts the axial displacement of the roller brush device 300 away from and close to the drive device 200, effectively preventing the roller brush device 300 from axially moving under working vibration, repeated start-stop or external disturbance.

[0191] Understandably, the card slots and card blocks are relatively easy and inexpensive to manufacture, which helps reduce the overall cost of the cleaning equipment.

[0192] In one possible embodiment, the slot may be provided on the device body 100, and the locking block may be provided at one end of the slider 322 opposite to the drive device 200. Alternatively, the slot may be provided on the slider 322, and the locking block may be provided at a corresponding position on the device body 100, so as to achieve insertion and limiting after axial alignment. The slot may be a straight slot, a blind slot, a T-slot, or a stepped slot, and the locking block may be a straight block, a T-slot, a cylindrical block, or a barbed block. When it is necessary to improve the anti-disengagement ability, the end of the locking block may be provided with a chamfer or a guide slope to facilitate automatic guidance during insertion, and the root of the locking block may be provided with a step or a limiting shoulder to form a clear stop surface.

[0193] See Figure 9As shown, in one possible embodiment, the rotating assembly 310 is rotatably mounted relative to the fixed member 321 via a first bearing 330. The function of the first bearing 330 is to enable the rotating assembly 310 to rotate smoothly relative to the fixed member 321 and to limit the relative rotational relationship between the two to a low-friction rolling fit, thereby reducing transmission resistance.

[0194] The fixing member 321 is connected to the inner wall of the inner ring of the first bearing 330, and the fixing member 321 abuts against the end face of the inner ring. The fixing member 321 may abut against at least one end face of the inner ring. The rotating assembly 310 is provided with a first bearing seat 311, which is connected to the outer wall of the outer ring of the first bearing 330, and axially abuts against both the end face of the outer ring and the fixing member 321.

[0195] When the rotating assembly 310 tends to move axially away from the drive assembly 210, it cannot move because the first bearing seat 311 of the rotating assembly 310 is abutted and limited by the fixing member 321. When the rotating assembly 310 tends to move axially towards the drive assembly 210, it cannot move because the first bearing seat 311 of the rotating assembly 310 is abutted and limited by the outer ring of the first bearing 330. Alternatively, when the rotating assembly 310 tends to move axially away from the drive assembly 210, it cannot move because the first bearing seat 311 of the rotating assembly 310 is abutted and limited by the outer ring of the first bearing 330. When the rotating assembly 310 tends to move axially towards the drive assembly 210, it cannot move because the first bearing seat 311 of the rotating assembly 310 is abutted and limited by the fixing member 321. In this way, the fixing member 320 and the rotating assembly 310 can be fixedly arranged axially.

[0196] Figure 19 for Figure 4 A magnified view of a section at point D. Figure 20 An exploded view of the drive unit 200 in the cleaning equipment provided in this application.

[0197] See Figure 9 , Figure 19 and Figure 20 As shown, in one possible embodiment, the drive assembly 210 includes a housing 211, a drive element 212, and a rotating base 213.

[0198] The drive shaft of the drive component 212 is located outside the housing 211, while the rest of the component is located inside the housing 211. The rotating seat 213 is connected to the housing 211 and is hinged to the device body 100.

[0199] The housing 211 is a shell structure used for mounting and protecting the drive unit 212. Its interior forms a receiving space to accommodate the main body of the drive unit 212. The drive shaft of the drive unit 212 extends from a pre-drilled shaft hole or shaft outlet in the housing 211 to coaxially or through-face transmission with the transmission part 222 of the roller brush device 300. The drive unit 212 can be a motor module that provides rotational power; it can be a DC motor, a geared motor, an integrated drive motor, a brushless motor, or a brushed motor.

[0200] The outer casing 211 can be in the form of a cylindrical shell, a box shell, or an irregularly shaped enclosed shell to adapt to different overall space layout requirements.

[0201] The rotating seat 213 is a mounting connector set on the housing 211, used to realize the hinged engagement between the drive assembly 210 and the device body 100, so that the drive assembly 210 can rotate relative to the device body 100 around the hinge axis, providing space for the installation and disassembly of the roller brush device 300.

[0202] Understandably, the housing 211 not only seals and protects the drive unit 212, but also provides a structural basis for the installation of the rotating seat 213. After the drive unit 212 outputs rotational power inside the housing 211, it is transmitted to the roller brush device 300 via the drive shaft. The rotating seat 213 enables the drive device 200 to maintain a swingable installation posture relative to the device body 100.

[0203] See Figure 9 , Figure 19 and Figure 20 As shown, in one possible embodiment, the drive assembly 210 further includes a first seal 214 located within the housing 211. The first seal 214 is disposed between the end face of the housing 211 axially near the drive shaft and the end face of the drive assembly 212 near the drive shaft. The first seal 214 can be disposed on either the end face of the housing 211 axially near the drive shaft or the end face of the drive assembly 212 near the drive shaft, and seals the gap between them.

[0204] The first seal 214 is an end sealing element disposed between the end face of the housing 211 and the end face of the drive member 212. It forms a sealing barrier to the opening through which the drive shaft extends, effectively preventing external liquids, dust or cleaning fluids from entering the interior of the housing 211 through the opening.

[0205] In one possible embodiment, the drive assembly 210 further includes a second seal 215 located within the housing 211, with a portion of the rotating seat 213 located within the housing 211. The second seal 215 is disposed between the outer wall of the rotating seat 213 and the inner wall of the housing 211. The second seal 215 is disposed on either the outer wall of the rotating seat 213 or the inner wall of the housing 211, and seals the gap between them.

[0206] The second sealing element 215 is a circumferential sealing element arranged between the outer wall of the rotating seat 213 and the inner wall of the outer shell 211. Its function is to circumferentially seal the gap between the rotating seat 213 and the outer shell 211, effectively preventing external liquids, dust or cleaning fluids from entering the interior of the outer shell 211 through the opening.

[0207] In one possible embodiment, the drive assembly 210 further includes a wire harness seal 216, the rotating seat 213 is provided with a wire outlet, and the wire harness seal 216 is disposed on the inner wall of the wire outlet.

[0208] The wire harness seal 216 is a wire-passing sealing element installed on the inner wall of the wire outlet of the rotating seat 213. Its function is to form a covering seal at the point where the power line, signal line or control line passes through, effectively preventing external liquids, dust or cleaning fluids from entering the rotating seat 213 and the interior of the housing 211 along the wire outlet.

[0209] The aforementioned seals correspond to three easily liquid-prone areas: the shaft end of the housing 211, the connection between the housing 211 and the rotating seat 213, and the outlet. When they work together, they can provide multi-point protection for the drive component 212.

[0210] In one possible embodiment, the first seal 214 and the second seal 215 can be an O-ring, a skeleton oil seal, a flat seal, or a lip seal, and the wire harness seal 216 can be a rubber plug, a threading rubber ring, or a silicone sealing sleeve. The materials can be high-molecular materials with certain elasticity, wear resistance, and water resistance, such as silicone, nitrile rubber, fluororubber, or TPE. Among these, O-rings are suitable for radial compression fits, skeleton oil seals are suitable for scenarios that combine rotary sealing and support, flat seals are suitable for end-face compression sealing, lip seals are suitable for dynamic sealing, and threading rubber rings or silicone sealing sleeves are suitable for adapting to wire harnesses of different diameters.

[0211] The first seal 214 remains pressed between the end face of the housing 211 and the end face of the drive component 212, thereby forming an end seal around the drive shaft. The second seal 215 continuously adheres to the outer wall of the rotating seat 213 and the inner wall of the housing 211, inhibiting the intrusion of liquid and dust along the annular gap direction. The wiring harness is led out through the outlet on the rotating seat 213, and the wiring harness seal 216 elastically covers its outer periphery, so that the wiring harness can maintain a seal even when it moves slightly with the rotating seat 213. Based on the above-mentioned fit, the probability of moisture and dirt entering the interior can be reduced, and the risk of damage to the drive component 212 can be reduced.

[0212] In one possible embodiment, the drive assembly 210 further includes a second bearing 217 and a second bearing housing 218, wherein the inner ring of the second bearing 217 is connected to the outer wall of the rotating seat 213, and the second bearing housing 218 is connected to the outer ring of the second bearing 217.

[0213] The outer wall of the second bearing housing 218 can contact the inner wall of the roller 312. Understandably, through this contact, the second bearing housing 218 provides support for the roller 312, allowing for multi-point axial support and helping to maintain the roller 312's center of gravity, thus reducing vibration and noise. The close contact and guiding relationship between the second bearing housing 218 and the inner wall of the roller 312 also helps to position the assembly.

[0214] In one possible embodiment, the drive assembly 210 further includes a third seal 219. The third seal 219 is disposed between the outer wall of the second bearing housing 218 and the inner wall of the roller 312. The second bearing housing 218 is in contact with the inner wall of the roller 312 via the third seal 219. The third seal 219 may be disposed on either the outer wall of the second bearing housing 218 or the inner wall of the roller 312, and seals the gap between them.

[0215] The third seal 219 is typically installed in the annular space between the outer wall of the second bearing housing 218 and the inner wall of the roller 312, arranged continuously in the circumferential direction, and forms a close or near-close relationship with the outer surface of the second bearing housing 218 and the inner surface of the roller 312, so as to maintain continuous sealing contact when the roller 312 rotates.

[0216] In one possible embodiment, the third seal 219 can be configured as an annular ring, a lip ring, a labyrinth ring, or a composite seal. An annular ring facilitates the formation of a complete circumferential seal; a lip ring maintains good adhesion under slight eccentricity; a labyrinth ring is suitable for reducing frictional resistance and extending seal life; and a composite seal combines contact sealing with structural cushioning. The material can be silicone, nitrile rubber, fluororubber, PTFE (Polytetrafluoroethylene) composite material, or wear-resistant elastomer to meet requirements for water resistance, dirt resistance, wear resistance, and a certain degree of elastic recovery. The cross-sectional shape of the third seal 219 can be circular, U-shaped, L-shaped, or a single-lip or double-lip structure. Its thickness is typically matched to the radial clearance between the outer wall of the second bearing housing 218 and the inner wall of the roller 312, and it should have a moderate amount of compression after assembly to maintain a stable seal without significantly increasing the rotational resistance of the roller 312. For example, when the clearance is small, a thinner lip structure can be used; when the clearance is relatively large, a composite ring structure with elastic preload can be used. The specific dimensions can be set according to the diameter of the roller 312, the outer diameter of the bearing housing, and the assembly tolerance. Generally, its radial compression ratio should be such that it can form a continuous sealing contact, and the circumferential length should be adapted to the circumference of the inner cavity of the roller 312. The contact width of the sealing lip is preferably controlled within a range that can balance sealing performance and low friction.

[0217] When the cleaning equipment is started, the drive unit 200 drives the roller brush device 300 to work. The roller 312 drives the second bearing seat 218 to rotate, and the second bearing seat 218 provides support for the rotation of the roller 312. The third seal 219 is arranged between the outer wall of the second bearing seat 218 and the inner wall of the roller 312. It elastically fits the roller 312 with its rotation or relative slight movement, effectively isolating the inner and outer spaces of the roller 312. Because the third seal 219 provides supplementary sealing for the annular gap, water mist, droplets, cleaning agents, and dust generated during the cleaning process are difficult to penetrate the drive unit 212 along the outer wall of the bearing seat. At the same time, the third seal 219 works together with the aforementioned sealing structure to form a more complete protective link, enabling the drive unit 212 to maintain a relatively stable transmission state and a longer service life under frequent wiping, contact with humid environments, and long-term operation conditions.

[0218] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A cleaning device, characterized in that, include: Equipment body (100). A drive device (200) is connected to the device body (100) at one end along the axial direction; A roller brush device (300) is configured to move along the axial direction to be driveably connected to or disengaged from the other end of the drive device (200) along the axial direction. The end of the roller brush device (300) away from the drive device (200) is detachably connected to the device body (100) to limit the displacement of the roller brush device (300) along the axial direction.

2. The cleaning equipment according to claim 1, characterized in that, The device body (100) is provided with a receiving cavity (110); The drive device (200) is hinged to the device body (100), and the drive device (200) rotates relative to the device body (100) to be located inside the receiving cavity (110) or partially outside the receiving cavity (110); The roller brush device (300) is detachably connected to the device body (100) to restrict the drive device (200) to be located within the receiving cavity (110).

3. The cleaning equipment according to claim 2, characterized in that, The roller brush device (300) includes: Rotating assembly (310), which is either connected or disconnected from the other end of the driving device (200); A fixing component (320) is disposed at one end of the rotating component (310) away from the driving device (200). The rotating component (310) is rotatably disposed relative to the fixing component (320), and the fixing component (320) and the rotating component (310) are fixedly disposed along the axial direction. The fixing component (320) is detachably connected to the device body (100).

4. The cleaning equipment according to claim 3, characterized in that, The rotating assembly (310) includes: Roller (312), wherein the roller (312) is provided with a mounting cavity (3121); A mating component (313) is located inside the mounting cavity (3121). The mating component (313) is connected to the inner wall of the mounting cavity (3121). The mating component (313) is provided with a mating cavity (3131), which communicates with the mounting cavity (3121). Along a section perpendicular to the axial direction, the cross section of the mating cavity (3131) is non-circular. The other end of the driving device (200) matches the mating cavity (3131). The other end of the driving device (200) is inserted into the mating cavity (3131) for transmission connection with the rotating assembly (310).

5. The cleaning equipment according to claim 4, characterized in that, The drive device (200) includes: A drive assembly (210) is connected to the device body (100) at one end along the axial direction away from the drive shaft. A roller brush drive shaft (220) includes a shaft body (221) and a drive part (222) disposed on the periphery of the shaft body (221). The shaft body (221) is connected to the drive shaft of the drive assembly (210). The mating cavity (3131) includes a shaft cavity (3131a) and a transmission cavity (3131b) that are interconnected. The shaft part (221) is inserted into the shaft cavity (3131a) and the shaft cavity (3131a) matches the shaft part (221). The transmission part (222) is inserted into the transmission cavity (3131b) and the transmission part (222) contacts the two circumferentially opposite inner walls of the transmission cavity (3131b).

6. The cleaning equipment according to claim 5, characterized in that, The number of the transmission parts (222) is at least two, and the at least two transmission parts (222) are evenly distributed along the circumference of the shaft body (221); The number of transmission cavities (3131b) is at least two, and the transmission cavities (3131b) are arranged in a one-to-one correspondence with the transmission part (222).

7. The cleaning equipment according to claim 5, characterized in that, The transmission cavity (3131b) is inclined along two circumferentially opposite inner walls, and along the axial direction from one end away from the drive assembly (210) to one end close to the drive assembly (210), the two inner walls are far apart from each other; And / or, the drive device (200) further includes a buffer (230) disposed on the outer wall of the transmission part (222) and / or the inner wall of the transmission cavity (3131b).

8. The cleaning equipment according to claim 3, characterized in that, The fixing component (320) includes: A fixing member (321) is disposed at one end of the rotating assembly (310) away from the driving device (200). The rotating assembly (310) is rotatably disposed relative to the fixing member (321), and the fixing member (321) and the rotating assembly (310) are fixedly disposed along the axial direction. The fixing member (321) is detachably connected to the device body (100). A sliding member (322) is slidably connected to the fixing member (321) along the axial direction; An elastic element (323) is connected to the fixed element (321) and the sliding element (322) along the axial direction. Under the elastic force of the elastic element (323), the sliding element (322) is detachably connected to the device body (100).

9. The cleaning equipment according to claim 8, characterized in that, The fixing member (321) is provided with a first limiting part (3211), and the device body (100) is provided with a second limiting part (120). The first limiting part (3211) and the second limiting part (120) are inserted into each other to at least limit the displacement of the roller brush device (300) along the axial direction towards the driving device (200).

10. The cleaning equipment according to claim 9, characterized in that, One of the first limiting part (3211) and the second limiting part (120) is a slot, and the other is a plug.

11. The cleaning equipment according to claim 8, characterized in that, The sliding member (322) is provided with a third limiting part (3221) at one end away from the driving device (200) along the axial direction, and the device body (100) is provided with a fourth limiting part (130) that matches the third limiting part (3221). The third limiting part (3221) engages with the fourth limiting part (130) to restrict the drive device (200) from being located in the receiving cavity (110) and to restrict the displacement of the roller brush device (300) away from the drive device (200) along the axial direction.

12. The cleaning equipment according to claim 11, characterized in that, One of the third limiting part (3221) and the fourth limiting part (130) is a card slot, and the other is a card block that matches the card slot.

13. The cleaning equipment according to claim 8, characterized in that, The rotating assembly (310) is rotatably mounted relative to the fixed member (321) via a first bearing (330); The fastener (321) is connected to the inner wall of the inner ring of the first bearing (330), and the fastener (321) abuts against the end face of the inner ring; The rotating assembly (310) is provided with a first bearing seat (311), which is connected to the outer wall of the outer ring of the first bearing (330), and along the axial direction, the first bearing seat (311) abuts against the end face of the outer ring and the fixing member (321).

14. The cleaning equipment according to claim 5, characterized in that, The driving component (210) includes: Outer shell (211); A drive unit (212), wherein the drive shaft of the drive unit (212) is located outside the housing (211), and the rest is located inside the housing (211); Rotary seat (213), which is connected to the outer shell (211) and hinged to the device body (100).

15. The cleaning equipment according to claim 14, characterized in that, The drive component (210) further includes: The first seal (214) is located inside the housing (211) and is disposed between the end face of the housing (211) along the axial direction near the drive shaft and the end face of the drive member (212) near the drive shaft. And / or, a second seal (215), the second seal (215) being located inside the housing (211), a portion of the rotating seat (213) being located inside the housing (211), the second seal (215) being disposed between the outer wall of the rotating seat (213) and the inner wall of the housing (211); And / or, wire harness seal (216), the rotating seat (213) is provided with a wire outlet, the wire harness seal (216) is provided on the inner wall of the wire outlet; And / or, the drive component (210) further includes: The second bearing (217) has its inner ring connected to the outer wall of the rotating seat (213); The second bearing housing (218) is connected to the outer ring of the second bearing (217); The third seal (219) is disposed between the outer wall of the second bearing seat (218) and the inner wall of the roller (312).

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