Surface cleaning device

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a surface cleaning device which comprises a cleaning part, the cleaning part comprises a support, a rotating shaft, rolling brushes and a driving mechanism, the rotating shaft rotationally penetrates through the support, and the rolling brushes are coaxially fixed to the two ends, extending out of the support, of the rotating shaft; the driving mechanism comprises a driving assembly, a transmission assembly and a clutch assembly, the clutch assembly comprises a first rotating part and a second rotating part, one of the first rotating part and the second rotating part is connected with an output shaft of the driving assembly, the other one is connected with the transmission assembly, and the transmission assembly is in transmission connection with the rotating shaft; the first rotating piece comprises an elastic coupling part; the second rotating piece is provided with a coupling groove, the circumferential inner wall of the coupling groove forms a coupling surface, the first rotating piece is rotationally arranged in the coupling groove, and the coupling part can abut against the coupling surface and deform in the radial direction of the coupling groove; when the rolling brush is subjected to abnormal resistance, the transmission assembly stops moving along with the rolling brush, and the driving assembly continues to output rotation.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a surface cleaning device. Background Technology

[0002] A steam mop is a cleaning device that uses high-temperature, high-pressure steam to disinfect and sterilize, and clean the home environment. A steam mop includes a steam brush, which includes a roller brush. The roller brush comes into contact with the surface to be cleaned, and by rolling the roller brush on the surface to be cleaned, combined with high-temperature, high-pressure steam, it achieves the purpose of disinfection, sterilization, and cleaning.

[0003] In steam floor brushes, a steam pipe and a drive assembly to rotate the roller brush are required. Since the pipe and drive assembly are in the same space, there is a risk of steam leakage and contact with electrical components in the drive assembly. In addition, when the roller brush is subjected to a large external force or seizes up, the drive motor is prone to stalling. Currently, electric control is generally used to prevent the drive motor from stalling, which is costly. Utility Model Content

[0004] The purpose of this invention is to provide a surface cleaning device that can avoid drive motor stalling and is low in cost.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A surface cleaning device includes a cleaning component, the cleaning component comprising:

[0007] support;

[0008] The pivot is rotatably mounted on the bracket;

[0009] The roller brush is coaxially fixed at both ends of the rotating shaft extending from the bracket;

[0010] A drive mechanism is disposed on the bracket. The drive mechanism includes a drive assembly, a transmission assembly, and a clutch assembly. The clutch assembly includes a first rotating member and a second rotating member. One of the first rotating member and the second rotating member is connected to the output shaft of the drive assembly, and the other is connected to the transmission assembly. The transmission assembly is drively connected to the rotating shaft.

[0011] The first rotating member includes an elastic coupling portion, and the second rotating member is provided with a coupling groove. The circumferential inner wall of the coupling groove forms a coupling surface. The first rotating member is rotatably disposed in the coupling groove, and the coupling portion can abut against the coupling surface and deform radially along the coupling groove.

[0012] When the surface cleaning device is working normally, the coupling part is engaged with the coupling surface, and the clutch assembly is connected to the drive assembly and the transmission assembly to make the roller brush rotate; when the roller brush encounters abnormal resistance, the transmission assembly stops moving along with the roller brush, and the drive assembly continues to output rotation.

[0013] As an alternative to the above-mentioned surface cleaning device, at least two grooves are provided on the coupling surface, and the at least two grooves are arranged along the circumference of the second rotating member. A tooth is formed between two adjacent grooves, and the coupling part can deform and pass over the tooth.

[0014] As an alternative to the above-mentioned surface cleaning device, the number of the tooth grooves is an integer multiple of the number of the coupling parts.

[0015] As an alternative to the above-mentioned surface cleaning device, along the rotation direction of the first rotating member, the tooth groove includes a first groove wall and a second groove wall connected to each other, the slope of the first groove wall is greater than the slope of the second groove wall, and the length of the second groove wall is greater than the length of the first groove wall.

[0016] As an alternative to the above-mentioned surface cleaning device, along the contact direction between the coupling part and the coupling surface, the projection of the end of the coupling part that abuts against the coupling surface can be located within the tooth groove.

[0017] As an alternative to the above-mentioned surface cleaning device, the first rotating member further includes a rotating body, and the coupling portion is formed by extending from the circumferential edge of the rotating body.

[0018] As an alternative to the above-mentioned surface cleaning device, multiple coupling parts are provided, and the multiple coupling parts are spaced apart along the circumference of the rotating body. The coupling parts extend along the circumference of the rotating body, and the ends of two adjacent coupling parts are connected or spaced apart.

[0019] As an alternative to the above-mentioned surface cleaning device, the coupling part is inclined from the rotating body toward the coupling surface along the contact direction between the coupling part and the coupling surface.

[0020] As an alternative to the aforementioned surface cleaning device, the end of the coupling portion that is not connected to the rotating body is bent away from the coupling surface to form an abutment end.

[0021] As an optional solution to the above-mentioned surface cleaning device, the initial deformation of the coupling part when it comes into contact with the coupling surface is 0.5-1mm.

[0022] As an optional solution to the above-mentioned surface cleaning device, the clutch assembly further includes a spacer support member, which is rotatably disposed in the coupling groove and located between the first rotating member and the second rotating member. The first rotating member is fixedly connected to the spacer support member, and the coupling part is spaced apart from the coupling groove along the axial direction of the coupling groove.

[0023] As an alternative to the above-mentioned surface cleaning device, the output shaft of the drive assembly passes through the first rotating member and the second rotating member, and a limiting member is fixed on the output shaft of the drive assembly. The limiting member is disposed on the side of the first rotating member opposite to the second rotating member.

[0024] As an optional solution to the above-mentioned surface cleaning device, the surface cleaning device further includes a clean water tank and a steam generating device connected to the clean water tank. The steam generating device includes a preheating chamber with a fluid inlet and a vaporization chamber for heating the fluid and generating steam. A cavity is formed inside the support, and the vaporization chamber is connected to the cavity. Air passage holes connected to the cavity are provided on opposite sides of the support.

[0025] A steam chamber is formed inside the roller brush, and a connecting hole is provided on the axial end face of the roller brush. The connecting hole is aligned with and connected to the corresponding air passage hole.

[0026] As an alternative to the above-mentioned surface cleaning device, the length of two adjacent connecting holes along the circumference of the roller brush is a first length, and the length of the air passage hole along the circumference of the roller brush is a second length, wherein the first length is less than or equal to the second length.

[0027] As an alternative to the above-mentioned surface cleaning device, the cleaning component further includes a steam pipe disposed within the cavity, the steam pipe connecting the vaporization chamber and the air passage.

[0028] As an alternative to the aforementioned surface cleaning device, an annular steam support is provided inside the cavity, with both axial ends of the steam support being sealed to the inner wall of the cavity to form a confluence cavity, and the air passage and the steam pipe communicating with the confluence cavity.

[0029] As an alternative to the aforementioned surface cleaning device, the steam support is made of an elastic material.

[0030] As an optional solution for the above-mentioned surface cleaning device, the outer wall of the bracket is provided with a boss, one axial end of the roller brush is provided with a limiting groove, the boss extends into the limiting groove, the air passage is provided on the boss, and the connecting hole is provided on the bottom surface of the limiting groove.

[0031] As an alternative to the aforementioned surface cleaning device, a guide groove is provided on the protrusion, and the air passage is located on the bottom surface of the guide groove.

[0032] As an alternative to the aforementioned surface cleaning device, the roller brush includes:

[0033] A roller brush body is fixedly sleeved on the outside of the rotating shaft. The steam chamber is formed inside the roller brush body, and a plurality of vent holes communicating with the steam chamber are provided on the outer peripheral surface of the roller brush body.

[0034] A cleaning layer, covering the circumferential outer wall of the roller brush body, allows gas and / or liquid to wet or permeate.

[0035] As an alternative to the above-mentioned surface cleaning device, the roller brush body includes:

[0036] A cylindrical body, on which the ventilation holes are provided;

[0037] The first end cap is detachably connected to one axial end of the cylinder facing the support. The first end cap is fixedly sleeved on the rotating shaft, and the communicating hole is provided in the first end cap.

[0038] The second end cap is detachably connected to the other axial end of the cylinder.

[0039] As an alternative to the aforementioned surface cleaning device, the first end cap includes:

[0040] A cover plate, wherein the cover plate is provided with the communicating hole;

[0041] An annular side portion, connected to the circumferential edge of the cover plate and extending axially toward the support along the cylinder body, the annular side portion being detachably connected to the cylinder body;

[0042] A bushing is connected to the side of the cover plate opposite to the annular side, and the bushing is detachably fitted onto the rotating shaft.

[0043] As an alternative to the above-mentioned surface cleaning device, the axial end of the rotating shaft is provided with a groove, and the inner wall of the bushing is provided with a protrusion that can be engaged in the groove.

[0044] As an alternative to the aforementioned surface cleaning device, the slot is an annular slot or a spaced slot.

[0045] As an alternative to the aforementioned surface cleaning device, the end of the bushing facing the second end cover is provided with at least two notches, and a cantilever is formed between two adjacent notches, with the protrusion disposed on the cantilever.

[0046] As an alternative to the aforementioned surface cleaning device, one of the inner wall of the bushing and the rotating shaft is provided with a spiral groove, and the other is provided with a spirally extending ridge, which can be screwed into the spiral groove.

[0047] As an alternative to the aforementioned surface cleaning device, the bushing is provided with at least two reinforcing ribs along the circumferential direction, and the reinforcing ribs are connected to the cover plate.

[0048] As an alternative to the above-mentioned surface cleaning device, both the first end cap and the second end cap include an annular side plate. The annular side plate extends outward from the cylinder in the radial direction of the cylinder. The annular side plate is located outside the axial end face of the cylinder and blocks at least part of the cleaning layer.

[0049] As an alternative to the aforementioned surface cleaning device, the drive assembly is disposed outside the cavity, while the transmission assembly and the clutch assembly are disposed inside the cavity.

[0050] As an alternative to the aforementioned surface cleaning device, the cavity includes a first cavity and a second cavity, the transmission assembly is disposed in the first cavity, and the air passage is located in the second cavity.

[0051] As an alternative to the aforementioned surface cleaning device, the support includes:

[0052] First frame;

[0053] The second frame is detachably connected to the first frame and forms the cavity. The first frame and / or the second frame are provided with a partition, which divides the cavity into the first cavity and the second cavity.

[0054] A bracket sealing ring is clamped between the first frame and the second frame and is arranged circumferentially around the second cavity.

[0055] As an optional solution for the above-mentioned surface cleaning device, the bracket is provided with a rotating hole communicating with the first cavity, the rotating shaft passes through the rotating hole, and a rotating shaft sealing ring is provided between the rotating shaft and the inner wall of the rotating hole to seal the gap between the rotating shaft and the rotating hole.

[0056] As an alternative to the above-mentioned surface cleaning device, the cleaning component further includes:

[0057] A protective cover is connected to the bracket, the protective cover and the bracket form a driving cavity, and the driving assembly is disposed within the driving cavity;

[0058] The cover sealing ring is clamped and fixed between the protective cover and the bracket.

[0059] As an alternative to the aforementioned surface cleaning device, the bracket is provided with a through hole, the output end of the drive component passes through the through hole to extend into the cavity, the bracket is provided with a positioning groove around the through hole, and the cover sealing ring is embedded in the positioning groove.

[0060] As an alternative to the above-mentioned surface cleaning device, the outer wall of the bracket is provided with a first annular flange and a second annular flange around the through hole. The first annular flange is located inside the second annular flange, and at least part of the drive assembly is located inside the first annular flange. A positioning groove is formed between the first annular flange and the second annular flange.

[0061] As an alternative to the above-mentioned surface cleaning device, the cleaning component further includes:

[0062] A fixed base is connected to the bracket and is symmetrically arranged relative to the bracket axis. The drive assembly and the rotating shaft are located on opposite sides of the fixed base, respectively.

[0063] A floor brush cover is fitted onto the bracket and detachably connected to the fixing base. The roller brush is located outside the floor brush cover, and the drive assembly is located inside the floor brush cover.

[0064] As an alternative to the above-mentioned surface cleaning device, the cleaning component further includes a lamp assembly connected to the mounting base, the lamp assembly being used to emit light toward the front cleaning side of the roller brush.

[0065] As an alternative to the aforementioned surface cleaning device, a light groove is provided on the front side of the mounting base, and openings are provided on both the bottom and front sides of the light groove, with the light assembly embedded in the light groove.

[0066] As an alternative to the aforementioned surface cleaning device, the lamp assembly includes a lighting lamp and / or a germicidal lamp.

[0067] The beneficial effects of this utility model are:

[0068] The surface cleaning device provided by this utility model, through the mechanical structure design of the first and second rotating components, allows the drive assembly to continue outputting rotation after the roller brush locks up, while the transmission assembly remains inactive. This results in a highly responsive device that does not require electrical control, thus reducing costs. Furthermore, the first and second rotating components can be stacked axially, resulting in a small size and minimal space occupation, further contributing to cost reduction.

[0069] In this surface cleaning device, steam is introduced into the roller brush through air vents on the bracket and connecting holes on the axial end face of the roller brush. The connecting holes align with the air vents as the roller brush rotates, ensuring steam flow. The structure is simple and does not affect the rotation of the roller brush. The bracket supplies steam to the roller brushes on both sides through air vents on both sides, further simplifying the structure. The dimensions of the air vents and connecting holes can be designed according to the diameter of the roller brush, resulting in a large flow area and ensuring sufficient steam flow. Steam is introduced from one axial side of the roller brush, allowing it to flow along the axial direction due to inertia, thus fully diffusing within the roller brush and achieving more uniform steam distribution. The steam enters the steam chamber of the roller brush and makes full contact with the brush through a cavity immersion method, improving cleaning effect and user experience. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the surface cleaning device provided by this utility model;

[0071] Figure 2 This is a first schematic diagram of the cleaning component provided by this utility model;

[0072] Figure 3 This is a first schematic diagram of the cleaning component provided by this utility model without the brush cover assembled;

[0073] Figure 4 This is a structural diagram of the cleaning component provided by this utility model without the brush cover and protective cover assembled.

[0074] Figure 5 This is a partial structural schematic diagram of the cleaning component provided by this utility model;

[0075] Figure 6 This is a schematic diagram of the structure of the second rotating component provided by this utility model;

[0076] Figure 7 This is a schematic diagram of the structure of the first rotating component provided by this utility model;

[0077] Figure 8 This is a first sectional view of a portion of the structure of the cleaning component provided by this utility model;

[0078] Figure 9 This is a second sectional view of a portion of the structure of the cleaning component provided by this utility model.

[0079] Figure 10 This is a second schematic diagram of the cleaning component provided by this utility model without the brush cover assembled;

[0080] Figure 11 This is a first schematic diagram of the roller brush provided by this utility model;

[0081] Figure 12This is a side view of the second frame, steam pipe, and part of the drive mechanism provided by this utility model;

[0082] Figure 13 This is a cross-sectional view of the roller brush and bracket provided by this utility model;

[0083] Figure 14 This is a cross-sectional view of the roller brush provided by this utility model without the cleaning layer assembled;

[0084] Figure 15 This is a first schematic diagram of the first end cap provided by this utility model;

[0085] Figure 16 This is a second schematic diagram of the first end cap provided by this utility model;

[0086] Figure 17 This is a front view of the bracket and roller brush provided by this utility model;

[0087] Figure 18 This is a second schematic diagram of the roller brush provided by this utility model;

[0088] Figure 19 This is a side view of the bracket provided by this utility model;

[0089] Figure 20 yes Figure 19 Sectional view along line AA;

[0090] Figure 21 This is a third schematic diagram of the cleaning component provided by this utility model when the floor brush cover is not installed;

[0091] Figure 22 This is a structural schematic diagram of the bracket and transmission assembly provided by this utility model;

[0092] Figure 23 This is a fourth schematic diagram of the cleaning component provided by this utility model when the floor brush cover is not installed;

[0093] Figure 24 This is a second schematic diagram of the cleaning component provided by this utility model.

[0094] In the picture:

[0095] 1000, Cleaning component; 100, Support; 101, Second cavity; 102, First cavity; 110, First frame; 111, Through hole; 112, First annular flange; 113, Second annular flange; 114, Vent hole; 115, Boss; 1151, Guide groove; 116, Rotating hole; 120, Second frame; 130, Support sealing ring; 140, Cover sealing ring; 200, Roller brush; 210, Roller brush body; 211, Cylinder; 2111, Vent hole; 212, First end cap; 2120, Limiting groove; 2121, Cover plate; 21211, Connecting hole; 2122, Annular side; 21221, Snap-fit ​​arm; 2123, Bushing; 21231, Notch; 21232, Protrusion; 21233, Raised ridge; 2124, Reinforcing rib; 2125, Annular side plate; 213, Second end cap; 2131, Groove; 2132, Wrench; 220, Cleaning layer; 230. 231. Rotating shaft; 232. Slot; 240. Bearing; 250. Rotating shaft sealing ring; 300. Floor brush cover; 410. Steam pipe; 420. Steam support; 510. Second baffle plate; 520. Protective cover; 521. Cover body; 522. First baffle plate; 600. Drive mechanism; 610. Drive assembly; 611. Drive motor; 612. Reducer; 620. Transmission assembly; 621. Drive pulley; 622. Transmission belt; 623. Driven pulley; 630. Clutch assembly; 631. First rotating member; 6311. Rotating body; 6312. Coupling part; 63121. Radial extension section; 63122. Circumferential extension section; 63123. Abutting end; 6313. Insertion part; 632. Second rotating member; 6321. Tooth; 6322. Tooth groove; 63221. First groove wall; 63222. Second groove wall; 634. Spacer support; 700. Lamp assembly.

[0096] 2000, Body; 3000, Base; 3100, Base Plate; 3110, Brush Groove; 3200, Front Support Column; 3300, Rear Support Column. Detailed Implementation

[0097] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0098] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0099] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0100] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0101] like Figure 1 As shown, this embodiment provides a surface cleaning device, including a main body 2000, a cleaning component 1000, a clean water tank (not shown), and a steam generator (not shown) connected to the clean water tank. Both the clean water tank and the steam generator are located on the main body 2000. The cleaning component 1000 is located at the bottom of the main body 2000 and includes a roller brush 200 for contacting the surface to be cleaned. When the surface cleaning device is in operation, the clean water tank supplies water to the steam generator, which heats the water into steam and provides high-temperature, high-pressure steam to the roller brush 200. The high-temperature, high-pressure steam permeates the surface to be cleaned, dissolving and vaporizing oil particles, resulting in an ultra-clean surface. Simultaneously, the steam can effectively penetrate any tiny pores and cracks, peeling off and removing stains and residues.

[0102] Alternatively, the surface cleaning device can be a steam mop or other device that includes a roller brush 200.

[0103] The steam generating device includes a preheating chamber with a fluid inlet and a vaporization chamber for heating the fluid and generating steam. The fluid inlet is connected to the clean water tank, and the vaporization chamber is connected to the roller brush.

[0104] In some embodiments, the steam generating device includes a steam boiler that, upon startup, vaporizes water to generate high-temperature, high-pressure steam. In other embodiments, the steam generating device can be any other device capable of generating steam.

[0105] refer to Figure 1 As shown, in some embodiments, the surface cleaning device also includes a base 3000, which is used to support and fix the device body so that the device body can be stably placed in a designated position when not in use, making it convenient to store the device body and reduce the space occupied.

[0106] In some embodiments, the base 3000 includes a base plate 3100, a front support column 3200, and a rear support column 3300. The base plate 3100 is used to support the roller brush 200 in the cleaning component 1000. The front support column 3200 and the rear support column 3300 are located on the front and rear sides of the cleaning component 1000, respectively. The front support column 3200 can abut against the cleaning component 1000 to prevent the roller brush 200 from sliding forward. The rear support column 3300 can abut against the body 2000 to fix the main body of the device.

[0107] Optionally, the surface of the rear support column 3300 that contacts the main body of the device is a contoured fitting surface, which has the same shape as the corresponding outer surface of the main body of the device, in order to improve the support effect.

[0108] To improve the fixation of the main body of the device, a roller brush groove 3110 is provided on the base plate 3100. The roller brush 200 can be placed in the roller brush groove 3110 to restrict the position of the roller brush 200 and achieve positioning of the cleaning component 1000, thereby improving the fixation of the main body of the device. The width of the roller brush groove 3110 is adapted to the diameter of the roller brush 200 to improve the positioning effect.

[0109] like Figure 2 and Figure 3 As shown, the cleaning component 1000 also includes a bracket 100, a rotating shaft 230, and a drive mechanism 600. One end of the bracket 100 is connected to the body 2000, and the other end of the bracket 100 is rotatably connected to the rotating shaft 230. Both ends of the rotating shaft 230 extending out of the bracket 100 are connected to roller brushes 200. The roller brushes 200 are coaxial with and fixed to the rotating shaft 230. The drive mechanism 600 is connected to the bracket 100 and is used to drive the rotating shaft 230 to rotate, thereby driving the roller brushes 200 to rotate.

[0110] In existing cleaning components 1000, the roller brush 200 sometimes encounters resistance and fails to rotate during operation, which can easily lead to blockage and damage to the drive mechanism that drives the roller brush 200. Some cleaning components 1000 use electronic control to prevent the drive mechanism from blocking, but this is costly and detrimental to improving product competitiveness.

[0111] To solve the above problems, such as Figure 4 and Figure 5 As shown, the drive mechanism 600 includes a drive assembly 610, a transmission assembly 620, and a clutch assembly 630. The clutch assembly 630 is capable of drivingly connecting the drive assembly 610 and the transmission assembly 620. The transmission assembly 620 is connected to the rotating shaft 230. Specifically, when the roller brush 200 locks, the clutch assembly 630 disengages the transmission assembly 620 from the drive assembly 610, allowing the drive assembly 610 to continue rotating, while the transmission assembly 620 stops moving along with the roller brush 200, thus preventing the drive assembly 610 from stalling.

[0112] To achieve the clutch function, in some embodiments, such as Figure 5 As shown, the clutch assembly 630 includes a first rotating member 631 and a second rotating member 632. The first rotating member 631 is flatly connected to the output shaft of the drive assembly 610, and the second rotating member 632 is connected to the transmission assembly 620. When the resistance experienced by the roller brush 200 is normal, the roller brush 200 can rotate normally. The drive assembly 610 drives the second rotating member 632 to rotate through the first rotating member 631, thereby transmitting the rotation to the roller brush 200 through the transmission assembly 620, causing the roller brush 200 to rotate and clean the ground. When the roller brush 200 encounters abnormal resistance and cannot rotate, the second rotating member 632 and the transmission assembly 620 stop moving with the roller brush 200, while the first rotating member 631 can rotate relative to the second rotating member 632 under the drive of the drive assembly 610. That is, when the transmitted torque is greater than or equal to a preset value, the first rotating member 631 can rotate with the drive assembly 610, but the second rotating member 632 will not rotate and will remain stationary with the roller brush.

[0113] like Figure 6 and Figure 7 As shown, the first rotating member 631 includes an elastic coupling part 6312, and the second rotating member 632 is provided with a coupling groove. The circumferential inner wall of the coupling groove forms a coupling surface. The first rotating member 631 is rotatably disposed in the coupling groove, and the coupling part 6312 can abut against the radial deformation of the ice hole coupling groove with the coupling surface.

[0114] When the roller brush 200 is locked, the torque transmitted between the first rotating member 631 and the second rotating member 632 is large, the force on the coupling part 6312 is large, and the deformation of the coupling part 6312 increases, so that the coupling part 6312 can rotate relative to the coupling surface. At this time, the second rotating member 632 and the transmission assembly 620 stop moving with the roller brush 200, and the first rotating member 631 can rotate under the action of the drive assembly 610, avoiding the drive assembly 610 from being blocked.

[0115] To achieve the transmission engagement between the coupling part 6312 and the coupling surface, in some embodiments, at least two protruding blocking parts are provided on the coupling surface, and the coupling part 6312 can deform and pass over the protruding blocking parts. When the transmitted torque is less than a preset value, the coupling part 6312 abuts against the coupling surface and reaches equilibrium. The static friction between the coupling part 6312 and the coupling surface restricts their relative movement, allowing the first rotating member 631 and the second rotating member 632 to be relatively fixed and transmit torque. The first rotating member 631 drives the second rotating member 632 to rotate, thereby driving the rotating shaft 230 to rotate through the transmission assembly 620. When the transmitted torque is equal to or greater than the preset value, the driving force on the first rotating member 631 is greater than the friction force it experiences. The coupling part 6312 will slide on the coupling surface and pass over the protruding blocking part. The coupling part 6312 cannot achieve force balance on the coupling surface. The first rotating member 631 will rotate relative to the second rotating member 632. Torque cannot be transmitted between the two. The second rotating member 632 and the transmission assembly 620 will stop moving when the roller brush 200 is locked.

[0116] The first rotating component 631 and the second rotating component 632 are stacked along the axial direction of the coupling groove. They are small in size and occupy little space, which helps to reduce costs.

[0117] In other embodiments, the first rotating member 631 can also be connected to the transmission assembly 620, and correspondingly, the second rotating member 632 can be connected to the output shaft of the drive assembly 610, which can also realize the clutch function.

[0118] By cooperating with the first rotating component 631 and the second rotating component 632, the mechanical structure can be designed so that the drive component 610 can continue to output rotation after the roller brush 200 is locked, while the transmission component 620 does not work. This results in a sensitive response, eliminates the need for electrical control, and helps reduce costs.

[0119] By providing a coupling surface on the circumferential inner wall of the coupling groove, and pre-pressing the coupling part 6312 radially against the coupling surface, the clutch function is achieved. Figures 5-7As shown, during the assembly of the clutch assembly 630, the preload of the coupling part 6312 and the coupling surface is not affected by the installation depth of the first rotating part 631 in the coupling groove. In other words, the axial position error of the first rotating part 631 in the coupling groove will not affect the preload between the coupling part and the coupling surface, making it easier to control the preload of the first rotating part 631, and allowing the first rotating part 631 to reach the assembly position with less effort during assembly.

[0120] In some embodiments, such as Figure 7 As shown, the first rotating member 631 also includes a rotating body 6311, and the coupling part 6312 is formed by extending from the circumferential edge of the rotating body 6311. The rotating body 6311 can be a thin plate structure, which reduces the axial dimension after the first rotating member 631 and the second rotating member 632 are engaged, thereby making the clutch assembly 630 occupy less space.

[0121] In some embodiments, multiple coupling portions 6312 are provided, and the multiple coupling portions 6312 are arranged circumferentially along the rotating body 6311 to increase the contact position and contact area between the first rotating member 631 and the second rotating member 632, increase the maximum torque that can be transmitted, and ensure the driving capability of the drive mechanism 600 to drive the roller brush 200.

[0122] To reduce the radial dimension of the clutch assembly 630, the coupling portion 6312 may extend circumferentially along the rotating body 6311 to reduce the radial dimension of the coupling portion 6312 along the rotating body 6311, thereby reducing the radial dimension of the first rotating member 631.

[0123] Specifically, the coupling part 6312 includes a radial extension 63121 and a circumferential extension 63122. The radial extension 63121 connects the rotating body 6311 and the circumferential extension 63122. The radial extension 63121 extends approximately radially along the rotating body 6311, while the circumferential extension 63122 is spaced apart from the rotating body 6311, thereby avoiding interference between the circumferential extension 63122 and the rotating body 6311. The circumferential extension 63122 is used to abut against the coupling surface.

[0124] To enable the coupling part 6312 to have a certain deformability, the coupling part 6312 is inclined in the direction of contact between the coupling part 6312 and the coupling surface, closer to the coupling surface than the rotating body 6311. The contact direction between the coupling part 6312 and the coupling surface is radial to the first rotating member 631.

[0125] To prevent the coupling part 6312 from jamming, the end of the circumferential extension 63122 is bent away from the second rotating member 632 to form an abutment end 63123. The surface of the abutment end 63123 facing the coupling surface forms a guide surface, which can guide the end of the circumferential extension 63122 to elastically deform along the radial direction of the first rotating member 631 away from the second rotating member 632, so as to ensure the stability of the clutch function.

[0126] To ensure that the clutch assembly 630 can continuously and stably transmit torque when the torque is less than the preset value, such as Figure 6 As shown, multiple toothed grooves 6322 are provided, and the multiple toothed grooves 6322 are arranged circumferentially along the coupling surface. A toothed portion 6321 is formed between two adjacent toothed grooves 6322. The toothed portion 6321 is a protruding blocking portion. The number of toothed grooves 6322 is an integer multiple of the number of coupling portions 6312, thereby ensuring that when the first rotating member 631 rotates to any position, each coupling portion 6312 corresponds to a toothed groove 6322.

[0127] Optionally, at the same time, the contact positions of each coupling part 6312 and the corresponding tooth groove 6322 can be different or the same.

[0128] To ensure the proper engagement of the first rotating member 631 and the second rotating member 632, the projection of the abutting end 63123 of the coupling part 6312 is completely located within the tooth groove 6322 along the contact direction between the coupling part 6312 and the coupling surface, thus ensuring a proper fit between the abutting end 63123 and the tooth groove 6322. The contact direction between the coupling part 6312 and the coupling surface is radial to the first rotating member 631.

[0129] like Figure 6 As shown, along the rotation direction of the first rotating member 631, the tooth groove 6322 includes a first groove wall 63221 and a second groove wall 63222 connected to each other. The slope of the first groove wall 63221 is greater than the slope of the second groove wall 63222, and the length of the second groove wall 63222 is greater than the length of the first groove wall 63221.

[0130] When the torque transmitted by the clutch assembly 630 is less than the preset value, the abutment end 63123 slides along the circumference of the first rotating member 631 on the second groove wall 63222 until the force on the coupling part 6312 reaches equilibrium and stops. At this time, the first rotating member 631 and the second rotating member 632 remain relatively stationary, and the clutch assembly 630 connects and transmits torque.

[0131] When the torque transmitted by the clutch assembly 630 is equal to or greater than the preset value, the abutment end 63123 cannot achieve balance on the first groove wall 63221, causing the abutment end 63123 to move past the tooth 6321 and onto the second groove wall 63222 of the next tooth groove 6322. This cycle continues, and the first rotating member 631 and the second rotating member 632 rotate relative to each other, causing the clutch assembly 630 to disengage from the transmission engagement.

[0132] In some embodiments, the rotating body 6311 of the first rotating member 631 is provided with a first central hole. The first central hole is a non-rotational shape. The output shaft of the driving component 610 passes through the first central hole and its shape and size are adapted to the first central hole so that the output shaft of the driving component 610 can drive the rotating body 6311 to rotate.

[0133] For example, the inner wall of the first central hole is composed of an arc surface and a plane. Correspondingly, the outer peripheral surface of the output shaft of the drive assembly 610 is surrounded by an arc surface and a plane. The plane is located at the flat position of the output shaft. The first central hole cooperates with the flat position of the output shaft to realize the synchronous rotation of the rotating body 6311 and the output shaft.

[0134] To avoid interference caused by contact between the coupling part 6312 and the bottom surface of the coupling groove, such as Figure 8 and Figure 9 As shown, the clutch assembly 630 also includes a spacer support 634, which is rotatably disposed in the coupling groove and located between the coupling groove and the first rotating member 631. The first rotating member 631 is fixedly connected to the spacer support 634 to support the first rotating member 631, so that the coupling part 6312 is spaced apart from the bottom surface of the coupling groove along the axial direction of the coupling groove, avoiding contact between the coupling part and the bottom surface of the coupling groove, thereby ensuring that the clutch assembly 630 can work smoothly.

[0135] In some embodiments, the spacer support 634 and the first rotating member 631 are both coaxially fixed on the output shaft of the drive assembly 610. The spacer support 634 has a second central hole at its center that mates with the output shaft of the drive assembly 610. The second central hole mates with the flat part of the output shaft of the drive assembly 610. The shape of the second central hole is the same as the shape at the flat part and the size matches it to achieve transmission.

[0136] To facilitate the fixing of the first rotating member 631 and the spacer support 634, a plug-in part 6313 is provided on the rotating body 6311 at the edge of the first central hole. The plug-in part 6313 extends along the axial direction of the first rotating member 631. The plug-in part 6313 can be inserted into the second central hole to fix the first rotating member 631 and the spacer support 634 and improve their positioning accuracy.

[0137] Optionally, the initial deformation of the coupling part 6312 when it comes into contact with the coupling surface along the radial direction of the first rotating member 631 is 0.5mm-1mm, that is, the preload interference of the coupling part 6312 is 0.5mm-1mm.

[0138] It is understandable that the initial deformation refers to the deformation of the coupling part 6312 when it comes into contact with the coupling surface when the roller brush 200 is not subjected to resistance and the drive component 610 is not activated.

[0139] For example, typical but non-limiting data for the preload interference of the coupling part 6312 are 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, and 1mm.

[0140] In some embodiments, the output shaft of the drive assembly 610 passes through the first rotating member 631, and a limiting member is provided on the output shaft of the drive assembly 610. The limiting member is located on the side of the first rotating member 631 opposite to the second rotating member 632, so as to limit the first rotating member 631 axially within the coupling groove and prevent the first rotating member 631 from disengaging from the coupling groove. Optionally, the limiting member can be a snap ring.

[0141] In this embodiment, the diameter of the first rotating member 631 is 30-40 mm, preferably 35.4 mm, and typical but non-limiting data for the outer diameter of the first rotating member 631 are 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, and 40 mm; the thickness of the rotating body 6311 is 0.5-1 mm, preferably 0.6 mm, and typical but non-limiting data for the thickness of the rotating body 6311 are 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, and 1 mm; the width of the coupling part 6312 is 2-4 mm, preferably 3 mm, and typical but non-limiting data for the width of the coupling part 6312 are 2 mm, 2.5 mm, 3 mm, 3.5 mm, and 4 mm.

[0142] The outer diameter of the second rotating member 632 is 35-45 mm, preferably 39 mm. Typical but non-limiting data for the outer diameter of the second rotating member 632 are 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, and 45 mm. The diameter of the coupling groove is 30-40 mm, preferably 36 mm. Typical but non-limiting data for the diameter of the coupling groove are 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, and 40 mm. The depth of the tooth groove 6322 is 0.5-1.5 mm, preferably 1 mm. Typical but non-limiting data for the depth of the tooth groove 6322 are 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, and 1.5 mm.

[0143] In some embodiments, the ends of multiple coupling portions 6312 can be connected sequentially by an annular plate, and the annular plate can be bent to form an abutment end 63123 to improve the strength of the first rotating member 631.

[0144] In existing devices with roller brushes, steam is generally introduced into the roller brush through pipes from the circumferential outer wall. This complex structure not only affects the rotation of the roller brush but also results in poor ventilation and low structural stability. It can easily lead to uneven steam distribution within the roller brush, resulting in insufficient or excessive steam causing excessive water accumulation, thus affecting the cleaning effect.

[0145] To solve the above problems, a cavity is formed inside the support 100, and the vaporization chamber of the steam generator is connected to the cavity, such as... Figures 10-12 As shown, the bracket 100 is provided with an air passage 114 that communicates with the cavity; a steam chamber is formed inside the roller brush 200, and a connecting hole 21211 is provided on the axial end face of the roller brush 200, which can be directly opposite to and communicate with the air passage 114.

[0146] Steam is introduced into the roller brush 200 through the air passage 114 on the bracket 100 and the connecting hole 21211 on the axial end face of the roller brush 200. The connecting hole 21211 can be aligned with the air passage 114 during the rotation of the roller brush 200, ensuring steam passage. The structure is simple and does not affect the rotation of the roller brush 200. The size of the air passage 114 and the connecting hole 21211 can be designed according to the diameter of the roller brush 200, with a large flow area to ensure sufficient steam passage. Steam is introduced from one axial side of the roller brush 200 and can flow along the axial direction of the roller brush 200 under inertia to fully diffuse within the roller brush 200, resulting in more uniform steam distribution. The steam enters the steam chamber of the roller brush 200 and makes full contact with the roller brush 200 through cavity immersion, improving cleaning effect and user experience.

[0147] like Figure 11 As shown, in some embodiments, the number of connecting holes 21211 can be set to multiple. Multiple connecting holes 21211 are arranged at intervals along the circumference of the roller brush 200 so that during the rotation of the roller brush 200, multiple connecting holes 21211 can be directly opposite the air passage hole 114, thereby increasing the proportion of time during the rotation of the roller brush 200 that the air passage hole 114 is connected to the connecting hole 21211, ensuring the smooth passage of steam.

[0148] For example, such as Figure 11 As shown, the number of connecting holes 21211 is set to 8. In other embodiments, the specific number of connecting holes 21211 can be set according to actual needs, and is not limited here.

[0149] It should be noted that the sidewall of the roller brush 200 allows steam to pass through. After entering the steam chamber through the air passage 114, the steam passes through the circumferential sidewall of the roller brush 200 and flows to the outside of the roller brush 200, which can fully wet the roller brush 200 and contact the surface to be cleaned, thereby improving the cleaning effect.

[0150] To ensure steam can enter the steam chamber, in some embodiments, the length of two adjacent connecting holes 21211 along the circumference of the roller brush 200 is a first length, and the length of the vent hole 114 along the circumference of the roller brush 200 is a second length, where the first length is less than or equal to the second length. This arrangement ensures that during the rotation of the roller brush 200, when the connecting hole 21211 currently connected to the vent hole 114 is completely misaligned, the next connecting hole 21211 is already connected to the vent hole 114, thus ensuring that at any given time, at least one connecting hole 21211 is always opposite and connected to the vent hole 114, thereby achieving continuous steam entry.

[0151] In some embodiments, at least one roller brush 200 is provided on each of the opposite sides of the support 100, and the support 100 is provided with an air vent 114 for each roller brush 200 on each side to allow steam to be introduced into the roller brushes 200 on both sides respectively.

[0152] For example, one rotating shaft 230 is provided, with its middle portion passing through the bracket 100. Both axial ends of the rotating shaft 230 extend beyond the bracket 100. Roller brushes 200 are provided on opposite sides of the rotating shaft 230 to increase the cleaning area. Correspondingly, each opposite side of the bracket 100 is provided with an air vent 114 to provide steam to the roller brushes 200 on both sides using a simple structure. In other embodiments, at least two rotating shafts 230 may be provided, with each rotating shaft 230 corresponding to two roller brushes 200.

[0153] To facilitate communication between the vaporization chamber and the air passage 114, in some embodiments, the cleaning component 1000 further includes a steam pipe 410. One end of the steam pipe 410 is connected to the vaporization chamber of the steam generator, and the other end extends into the cavity and communicates with the air passage 114 to provide steam to the roller brush 200. The roller brush 200 and the surface to be cleaned are wetted by high-temperature and high-pressure steam, thereby achieving the purpose of sterilization and disinfection and improving the cleaning effect.

[0154] To facilitate communication between the steam pipe 410 and the vent 114, a steam support 420 is provided inside the cavity. The steam support 420 is sealed to the inner wall of the cavity to form a manifold. The vent 114 and the steam pipe 410 are respectively connected to the manifold. By providing the steam support 420, the end of the steam pipe 410 can be connected to the vent 114 without bending, which helps reduce damage to the steam pipe 410, improves sealing, and ensures smooth steam delivery.

[0155] In some embodiments, the steam support 420 is annular, and the two ends of the steam support 420 are respectively arranged around the circumference of the corresponding air passage 114, so that the steam support 420 respectively cooperates with the inner walls of the opposite sides of the cavity to form a confluence cavity, and simultaneously communicates with the air passage 114 on both sides.

[0156] In some embodiments, the steam support 420 can be bonded to the inner wall of the cavity to simplify the structure and improve the fixation effect.

[0157] In some embodiments, the steam support 420 may be made of an elastic material to press against the opposite sidewalls of the cavity, thereby achieving a sealed connection between the steam support 420 and the inner wall of the cavity and preventing steam from flowing inside the cavity.

[0158] For example, the vapor support 40 can be made of POK+30%GF material. POK+30%GF is a high-strength engineering material belonging to the polyketide family. This material is reinforced by the addition of 30% glass fiber (GF), thereby improving its rigidity, hydrolysis resistance, impact resistance, chemical resistance, fuel resistance, and gas barrier properties. POK material itself has a highly crystalline and robust crystalline structure, and also possesses many excellent properties such as hydrolysis resistance and impact resistance. By adding glass fiber, this material not only enhances its mechanical properties but also broadens its application range, enabling it to meet more high-performance application scenarios. POK+30%GF has a wide range of applications, including but not limited to automotive electronics, high-performance gears, and plastic springs, among which high-rigidity hydrolysis-resistant plastics are one of its important application directions. The characteristics of this material make it a preferred material for manufacturing high-performance products, especially in applications requiring high strength, low wear, heat resistance, and hydrolysis resistance, where POK+30%GF demonstrates its unique advantages. In summary, POK+30%GF is a high-performance engineering plastic. Through glass fiber reinforcement, its mechanical properties and applicability are further improved, making it widely used in various applications requiring high-performance materials.

[0159] like Figure 10 and Figure 11 As shown, a boss 115 protrudes from the outer wall of the support 100, and a limiting groove 2120 is provided at one axial end of the roller brush 200. The boss 115 extends into the limiting groove 2120. An air passage 114 is provided on the boss 115, and a connecting hole 21211 is provided on the bottom surface of the limiting groove 2120. This arrangement can reduce the overflow of steam between the roller brush 200 and the support 100, so that after the steam passes through the air passage 114, it can enter the steam chamber through the connecting hole 21211, thereby improving the utilization rate of steam.

[0160] In some embodiments, such as Figure 10 As shown, a guide groove 1151 is provided on the boss 115, and an air passage 114 is provided on the bottom surface of the guide groove 1151. By providing the guide groove 1151, the steam can be guided to flow towards the connecting hole 21211.

[0161] In some embodiments, such as Figure 11As shown, the roller brush 200 includes a roller brush body 210 and a cleaning layer 220. The roller brush body 210 is fixedly sleeved outside the rotating shaft 230 to rotate synchronously with the rotating shaft 230. A steam chamber is formed inside the roller brush body 210, and a connecting hole 21211 is provided on the axial end face of the roller brush body 210. The cleaning layer 220 is sleeved on the circumferential outer wall of the roller brush body 210 and allows gas and / or liquid to wet or pass through it. A plurality of vent holes 2111 are provided on the circumferential outer wall of the roller brush body 210 so that steam can contact the cleaning layer 220 through the vent holes 2111 to wet the cleaning layer 220 and improve the cleaning effect of the cleaning layer 220 on the surface to be cleaned. With the above configuration, the steam provided by the steam pipe 410 can be fully diffused in the steam chamber, so that the steam overflows evenly from the vent holes 2111 on the roller brush body 210, improving the uniformity of steam distribution, thereby fully wetting the cleaning layer 220 and improving the cleaning effect.

[0162] Optionally, the cleaning layer 220 can be a structure such as cloth, sponge, or cotton felt that can be wetted and used to wipe the surface to be cleaned.

[0163] like Figure 13 and Figure 14 As shown, in some embodiments, the roller brush body 210 includes a cylindrical body 211 and two end caps, which are referred to as the first end cap 212 and the second end cap 213 for ease of description. The cylindrical body 211 has multiple vent holes 2111; the first end cap 212 is detachably connected to one axial end of the cylindrical body 211 facing the bracket 100, and the second end cap 213 is detachably connected to the other axial end of the cylindrical body 211; multiple connecting holes 21211 are provided on the end face of the first end cap 212, and these connecting holes 21211 are arranged in a circle around the axis of the cylindrical body 211. When the roller brush body 210 rotates, the multiple connecting holes 21211 can sequentially align with the vent holes 114.

[0164] To avoid interfering with the rotation of the brush body 210 and the steam flow, in some embodiments, such as Figure 13 As shown, the axial end face of the roller brush body 210 and the surface of the bracket 100 with the vent hole 114 are spaced apart by a distance H. That is, the axial end face of the first end cap 212 and the outer wall of the bracket 100 are spaced apart along the axial direction of the roller brush body 210, and the two do not contact each other.

[0165] Optionally, the distance H between the axial end face of the first end cap 212 and the outer wall of the bracket 100 along the axial direction of the brush body 210 can be 1-5 mm, preferably 2-4 mm. Typical but non-limiting values ​​for this distance are 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, and 5 mm.

[0166] In some embodiments, the cylinder 211 is snapped into the end cap for easy disassembly, cleaning of the inside of the cylinder 211, and to avoid clogging of the vent 2111.

[0167] like Figures 14-15 As shown, in some embodiments, the first end cap 212 includes a cover plate 2121 and an annular side portion 2122. The cover plate 2121 is provided with a connecting hole 21211 and forms the axial end face of the first end cap 212. The annular side portion 2122 is connected to the circumferential edge of the cover plate 2121 and extends toward the bracket 100. The annular side portion 2122 and the cover plate 2121 form a limiting groove 2120. The annular side portion 2122 is used to fit over the boss 115. The annular side portion 2122 can cover the circumferential opening of the gap between the boss 115 and the cover plate 2121 to prevent steam from overflowing.

[0168] In some embodiments, the cover plate 2121 may be located inside the cylinder 211, and one end of the connecting cover plate 2121 of the annular side portion 2122 is located inside the cylinder 211 and is detachably connected to the cylinder 211. This arrangement, on the one hand, increases the contact area between the first end cap 212 and the cylinder 211, facilitating the connection between the first end cap 212 and the cylinder 211, thereby improving the fixing effect between the cylinder 211 and the first end cap 212; on the other hand, the partial annular side portion 2122 located inside the cylinder 211 can support the cylinder 211 and improve the strength of the cylinder 211.

[0169] To achieve a detachable connection between the first end cap 212 and the cylinder 211, the annular side portion 2122 is snapped into and fixed to the cylinder 211 for easy disassembly. In some embodiments, the annular side portion 2122 is provided with a flexible snap-fit ​​arm 21221, and the cylinder 211 is provided with a snap-fit ​​hole, allowing the snap-fit ​​arm 21221 to snap into the snap-fit ​​hole to fix the first end cap 212 to the cylinder 211. In other embodiments, the snap-fit ​​arm 21221 can be provided on the cylinder 211, and correspondingly, the snap-fit ​​hole is provided on the annular side portion 2122, which can also fix the first end cap 212 and the cylinder 211 by snap-fit.

[0170] In some embodiments, the first end cap 212 may further include a bushing 2123, which is connected to the side of the cover plate 2121 opposite to the annular side 2122, and is sleeved on the rotating shaft 230. By providing the bushing 2123, the contact area between the roller brush body 210 and the rotating shaft 230 can be increased, thereby improving the stability of the roller brush body 210 on the rotating shaft 230 and preventing the roller brush body 210 from shaking relative to the rotating shaft 230.

[0171] In some embodiments, at least two reinforcing ribs 2124 are provided on the bushing 2123 along the circumferential direction. The reinforcing ribs 2124 are connected to the cover plate 2121. On the one hand, they can improve the strength of the first end cover 212. On the other hand, the reinforcing ribs 2124 can also guide the steam entering the steam chamber, so that the steam flows to the end of the cylinder 211 near the second end cover 213, making the steam distribution in the steam chamber more uniform.

[0172] To facilitate the fixing of the roller brush body 210 and the rotating shaft 230, the bushing 2123 is snapped into and fixed to the rotating shaft 230. In some embodiments, combined with Figure 14 and Figure 17 As shown, a groove 231 is provided on the outer circumferential wall of the end of the rotating shaft 230 facing the second end cover 213, and a protrusion 21232 is provided on the inner wall of the end of the bushing 2123 facing the second end cover 213. The protrusion 21232 can be inserted into the groove 231 to fix the bushing 2123 and the rotating shaft 230.

[0173] When the roller brush body 210 is engaged with the rotating shaft 230, one end of the rotating shaft 230 with the groove 231 is inserted into the first end cover 212 in the direction from the first end cover 212 to the second end cover 213. The groove 231 has a concave structure to avoid interference with the inner wall of the bushing 2123, so that the rotating shaft 230 can be smoothly inserted into the bushing 2123. After the rotating shaft 230 and the first end cover 212 are engaged, the groove 231 engages with the protrusion 21232 to achieve a snap-fit ​​fixation.

[0174] Optionally, the slot 231 is an annular slot or a spacer slot.

[0175] To improve the fixing effect between the roller brush body 210 and the rotating shaft 230, in some embodiments, the bushing 2123 and the rotating shaft 230 are engaged by a helical structure. Figure 14 , Figure 16 and Figure 17 As shown, the inner wall of the bushing 2123 is provided with a spirally extending protruding rib 21233. Correspondingly, the rotating shaft 230 is provided with a spirally extending spiral groove 232. The protruding rib 21233 can gradually screw into the spiral groove 232 as the bushing 2123 rotates, thereby fixing the roller brush body 210 and the rotating shaft 230. When installing the roller brush body 210 and the rotating shaft 230, one end of the rotating shaft 230 provided with the slot 231 is inserted into the first end cover 212 in the direction from the first end cover 212 to the second end cover 213. The angle of the first end cover 212 is adjusted so that the end of the protruding rib 21233 is aligned with the end of the spiral groove 232. Then, the roller brush body 210 is rotated so that the protruding rib 21233 gradually engages with the spiral groove 232 until the protruding rib 21232 is engaged in the slot 231.

[0176] Optionally, at least two protrusions 21233 can be provided, and the number of spiral grooves 232 is the same as that of protrusions 21233, so that each protrusion 21233 is provided with a corresponding spiral groove 232. By increasing the number of protrusions 21233 and spiral grooves 232, the fixing effect between the bushing 2123 and the rotating shaft 230 can be improved.

[0177] In some embodiments, the protruding ridge 21233 may be provided on the outer wall of the rotating shaft 230, and correspondingly, the spiral groove 232 is provided on the inner wall of the bushing 2123.

[0178] In some embodiments, the slot 231 is an annular groove. When the protrusion 21233 and the spiral groove 232 are rotated into place, the protrusion 21232 can be inserted into the slot 231 after rotating to any position with the bushing 2123. This reduces the positioning accuracy of the protrusion 21232 and the slot 231 along the circumference of the rotating shaft 230, thereby reducing the processing difficulty and cost.

[0179] To reduce the force required for the protrusion 21232 to engage or disengage from the slot 231, at least two notches 21231 are provided at the end of the bushing 2123 near the second end cap 213, so that at least two cantilever arms are formed at this end of the bushing 2123, with the protrusion 21232 located inside the cantilever arms. By providing the notches 21231, the cantilever arms are made more easily deformable, thereby facilitating the engagement or disengagement of the protrusion 21232 from the slot 231.

[0180] It should be noted that the fixing structure of the second end cap 213 and the cylinder 211 can refer to the fixing method of the first end cap 212 and the cylinder 211, and will not be repeated here.

[0181] In some embodiments, such as Figure 18 As shown, the axial outer wall of the second end cap 213 is recessed to form a groove 2131, and a wrench 2132 is protruding inside the groove 2131. When assembling the roller brush body 210 and the rotating shaft 230, the operator can hold the wrench 2132 to drive the roller brush body 210 to rotate, which is convenient to operate.

[0182] In order to fix the cleaning layer 220 and the roller brush body 210, the inner diameter of the cleaning layer 220 is matched with the outer diameter of the roller brush body 210. That is, the inner diameter of the cleaning layer 220 is equal to or slightly smaller than the outer diameter of the roller brush body 210, so as to prevent the cleaning layer 220 from detaching from the roller brush body 210.

[0183] In some embodiments, both the first end cap 212 and the second end cap 213 include annular side plates 2125. The annular side plates 2125 extend radially outward from the cylinder 211. The annular side plates 2125 are located outside the axial end face of the cylinder 211 and block at least a portion of the axial end face of the cleaning layer 220. The cooperation of the two annular side plates 2125 restricts the axial position of the cleaning layer 220 along the cylinder 211 to fix the cleaning layer 220.

[0184] To ensure the safe operation and structural reliability of the drive mechanism 600, combined with... Figure 2 and Figure 4 As shown, the drive assembly 610 is disposed outside the bracket 100, while the transmission assembly 620 and the steam pipe 410 are disposed inside the cavity. The bracket 100 separates the steam pipe 410 and the drive assembly 610, thus isolating the steam from the electrical components in the drive mechanism 600. This prevents steam leakage from contacting the electrical components, reduces the impact of steam heat on the electrical components, ensures safe use, and improves the reliability of the cleaning component 1000.

[0185] In some embodiments, the support 100 includes a first frame 110 and a second frame 120 that are detachably connected, forming a cavity between the first frame 110 and the second frame 120. The drive assembly 610 is located outside the cavity, and the steam pipe 410 is located inside the cavity to separate the steam from electrical components such as the drive assembly 610. The detachable connection of the first frame 110 and the second frame 120 facilitates the assembly of the steam pipe 410 and the transmission assembly 620 within the support 100.

[0186] Optionally, the first frame 110 and the second frame 120 can be detachably connected by screws. Exemplarily, one of the first frame 110 and the second frame 120 is provided with a fixing post, and the screw passes through the other frame 110 and the second frame 120 and is threadedly connected to the fixing post to fix the first frame 110 and the second frame 120. By providing a fixing post, the thread engagement length with the screw can be increased to ensure a secure fixation.

[0187] To prevent the steam temperature inside the steam pipe 410 from affecting the transmission accuracy and stability of the transmission assembly 620, in some embodiments, such as Figure 6 As shown, the cavity includes a first cavity 102 and a second cavity 101 that are not connected. The transmission assembly 620 is disposed in the first cavity 102, and the steam pipe 410 is disposed in the second cavity 101. Correspondingly, the vent 114 is connected to the second cavity 101. By dividing the space within the bracket 100 into the first cavity 102 and the second cavity 101 that are not connected, the steam pipe 410 and the transmission assembly 620 can be separated, reducing the transfer of steam temperature into the first cavity 102, thereby avoiding affecting the transmission assembly 620.

[0188] In some embodiments, the first frame 110 and / or the second frame 120 are provided with partitions to divide the cavity into a first cavity 102 and a second cavity 101. Optionally, the partitions can be stiffeners, which are simple in structure and easy to form.

[0189] For example, both the first frame 110 and the second frame 120 include a shell and a stiffening plate disposed on the shell. The stiffening plate divides the interior of the shell into a first groove and a second groove. After the first frame 110 and the second frame 120 are fixed, the two first grooves form a first cavity 102 and the two second grooves form a second cavity 101, so as to separate the cavity into a non-connected first cavity 102 and a second cavity 101.

[0190] To improve the sealing performance of the first cavity 102 and the second cavity 101, the bracket 100 also includes a bracket sealing ring 130. The bracket sealing ring 130 is clamped between the first frame 110 and the second frame 120, and the bracket sealing ring 130 is arranged around the circumference of the second cavity 101. This can improve the sealing performance of the second cavity 101 and prevent steam leakage from the steam pipe 410 into the second cavity 101, thereby further isolating the steam from the drive mechanism 600.

[0191] To improve the stability of the bracket sealing ring 130, at least one of the first bracket 100 and the second bracket 100 has a double-layer plate for the stiffener, with a sealing groove formed between the double-layer plates. The bracket sealing ring 130 is located in the sealing groove to fix the bracket sealing ring 130 and prevent the position of the bracket sealing ring 130 from moving and affecting the sealing effect.

[0192] In some embodiments, one end of the bracket 100 is a connecting end and the other end is a rotary support end. The connecting end is generally a tube and is used to connect the machine body 2000. The rotary support end is used to rotatably connect the rotating shaft 230 and the roller brush 200. The transmission assembly 620 is installed between the rotary support end and the connecting end.

[0193] In some embodiments, such as Figure 19 and Figure 20 As shown, the slewing support end is provided with a rotating hole 116, which is connected to the first cavity. The rotating shaft 230 passes through the rotating hole 116 and can rotate relative to the rotating hole 116. The output end of the transmission component 620 is connected to the rotating shaft 230 in the first cavity to drive the rotating shaft 230 to rotate.

[0194] To improve the stability of the rotation of the shaft 230, a bearing 240 is provided in the first cavity 102 at the rotation hole 116. The outer ring of the bearing 240 is fixedly connected to the bracket 100, and the inner ring of the bearing 240 is fixedly connected to the shaft 230, so as to reduce the resistance encountered by the shaft 230 during rotation.

[0195] A shaft sealing ring 250 is provided between the inner wall of the rotating shaft 230 and the rotating hole 116. The shaft sealing ring 250 is compressed to seal the assembly gap between the rotating shaft 230 and the rotating hole 116, so as to prevent the steam overflowing from the roller brush 200 from entering the first cavity through the assembly gap.

[0196] To reduce the resistance encountered during the rotation of the rotating shaft 230, a collar is also provided on the inner ring of the rotating shaft seal 250. The collar is located between the rotating shaft seal 250 and the rotating shaft 230, and is fitted over the rotating shaft 230. The inner diameter of the collar matches the outer diameter of the rotating shaft 230, allowing the rotating shaft 230 to rotate relative to the collar. Compared to the rotating shaft seal 250 directly contacting the rotating shaft 230, the friction between the collar and the rotating shaft 230 is smaller when they are fitted together, resulting in less resistance to the rotation of the rotating shaft 230, which helps to reduce the driving force on the roller brush 200.

[0197] Alternatively, the collar can be made of a metallic material to improve its wear resistance and extend its service life.

[0198] In some embodiments, both the first bracket 100 and the second bracket 100 are provided with rotating holes 116. The middle part of the rotating shaft 230 passes through the rotary support end of the bracket 100 and cooperates with the two rotating holes 116 respectively. Both axial ends of the rotating shaft 230 extend out of the bracket 100. Each rotating hole 116 is provided with a rotating shaft sealing ring 250 and a shaft collar.

[0199] In some embodiments, such as Figure 19 As shown, the drive assembly 610 includes a drive motor 611 and a reducer 612. The output shaft of the drive motor 611 is connected to the reducer 612 in a transmission manner. The output shaft of the reducer 612 extends into the bracket 100 and is connected to the transmission assembly 620 in a transmission manner.

[0200] The axes of the drive motor 611 and the reducer 612 are arranged approximately parallel to the axis of the brush body 210. The drive motor 611 and the reducer 612 occupy the space above the brush body 210 for installation, without occupying the internal space of the bracket 100, thus reducing the size of the bracket 100.

[0201] In this embodiment, as Figure 20 As shown, the transmission assembly 620 is a belt drive assembly, including a driving pulley 621, a transmission belt 622, and a driven pulley 623. The driving pulley 621 is coaxially mounted and fixed to the output shaft of the reducer 612, and the driven pulley 623 is coaxially mounted and fixed to the rotating shaft 230. The transmission belt 622 is sleeved between the driving pulley 621 and the driven pulley 623 and is tensioned by the driving pulley 621 and the driven pulley 623. After the drive assembly 610 is started, it outputs rotational motion, which is transmitted to the rotating shaft 230 in sequence through the driving pulley 621, the transmission belt 622, and the driven belt, thereby driving the rotating shaft 230 to rotate.

[0202] Optionally, the transmission belt 622 can be a synchronous belt, and correspondingly, the driving pulley 621 and the driven pulley 623 are synchronous pulleys to improve transmission accuracy.

[0203] In other embodiments, the transmission component 620 can be a gear assembly, as long as it can convert the motion output by the drive component 610 into the rotation of the shaft 230.

[0204] In some embodiments, the clutch assembly 630 is disposed within the first cavity 102, allowing for a more compact assembly between the clutch assembly 630 and the transmission assembly 620, and preventing steam from contacting the clutch assembly 630. Compared to disposing of the clutch assembly 630 on the outside of the support 100, this reduces the axial dimension of the cleaning component 1000 along the roller brush 200, resulting in a smaller cleaning component 1000, which is beneficial for cleaning confined spaces. In other embodiments, the clutch assembly 630 may also be disposed on the outside of the support 100.

[0205] To protect the driver component 610, such as Figure 21 As shown, the cleaning component 1000 also includes a protective cover 520, which is connected to the bracket 100 and covers the drive assembly 610. Specifically, the protective cover 520 is a cover 521 structure with one end open, and the opening of the protective cover 520 faces the bracket 100. After the protective cover 520 and the bracket 100 are fixed, they form a drive cavity, and the drive assembly 610 is disposed in the drive cavity to protect the drive assembly 610 from impacts or dust accumulation.

[0206] like Figure 22 As shown, the bracket 100 is provided with a through hole 111 communicating with the first cavity 102. The output shaft of the drive assembly 610 extends into the first cavity 102 through the through hole 111 to cooperate with the transmission assembly 620 and the clutch assembly 630 inside the first cavity 102. To prevent dust and other impurities during the cleaning process from entering the first cavity 102 through the assembly gap between the protective cover 520 and the bracket 100 and the through hole 111, the cleaning component 1000 also includes a cover sealing ring 140. The cover sealing ring 140 is arranged around the through hole 111 and clamped and fixed between the protective cover 520 and the bracket 100 to seal the assembly gap between the protective cover 520 and the bracket 100.

[0207] To improve the sealing effect, a positioning groove is provided on the bracket 100 around the through hole 111, and the cover sealing ring 140 is embedded in the positioning groove. Specifically, a first annular flange 112 and a second annular flange 113 are provided on the outer wall of the bracket 100 around the through hole 111. The first annular flange 112 is located inside the second annular flange 113, and the positioning groove is formed between the first annular flange 112 and the second annular flange 113. When the drive assembly 610 and the protective cover 520 are assembled with the bracket 100, at least part of the drive assembly 610 is located in the first annular flange 112, the cover sealing ring 140 is located in the positioning groove, and the end of the protective cover 520 is inserted into the positioning groove to press the cover sealing ring 140.

[0208] In some embodiments, the roller brush further includes a fixing seat, which is connected to the bracket 100 and symmetrically arranged relative to the bracket 100, such that the fixing seat is located above the roller brush bodies 210 on both sides of the bracket 100. Specifically, as Figure 21 and Figure 23 As shown, the fixing base includes a first baffle plate 522 and a second baffle plate 510. The first baffle plate 522 and the second baffle plate 510 are symmetrically arranged with respect to the bracket 100. The surface of the first baffle plate 522 and the second baffle plate 510 facing the roller brush body 210 is an arc surface. The arc surface is adapted to the outer peripheral surface of the roller brush body 210 and is spaced apart from the roller brush body 210 so that the fixing base and the roller brush 200 structure are more compact and to avoid interference with the rotation of the roller brush 200.

[0209] To simplify the structure, a first baffle plate 522 is formed on the side wall of the protective cover 520 facing the corresponding roller brush body 210 to avoid increasing the number of parts in the cleaning component 1000. Specifically, the protective cover 520 includes a cover body 521 and a first baffle plate 522 connected to the cover body 521. The cover body 521 has openings on the side facing the support 100 and the roller brush 200. The first baffle plate 522 is connected to the cover body 521 and blocks the openings of the cover body 521 facing the roller brush 200.

[0210] In some embodiments, the cover 521 and the first baffle 522 are integrally formed to reduce the number of parts and facilitate assembly. In other embodiments, the cover 521 and the first baffle 522 may also be separate structures, fixed by fasteners or snap-fits.

[0211] To ensure the clean part 1000 has a neat and aesthetically pleasing appearance, such as Figure 24 As shown, the cleaning component 1000 also includes a floor brush cover 300, which is fitted onto the bracket 100 and fixed to the mounting base. The protective cover 520 and the drive assembly 610 are located inside the floor brush cover 300, and the roller brush 200 is located outside the floor brush cover 300.

[0212] Specifically, the top of the floor brush cover 300 is provided with an assembly hole, the bottom of the floor brush cover 300 is open, the bottom opening of the floor brush cover 300 is covered by a fixing seat, and the top of the bracket 100 extends through the assembly hole to facilitate connection to the machine body.

[0213] The floor brush cover 300 is detachably connected to the mounting base to facilitate after-sales maintenance of the cleaning component 1000. In this embodiment, the floor brush cover 300 and the mounting base are fixed by fasteners. To improve appearance, the fasteners can pass through the mounting base and connect to the inner wall of the floor brush cover 300, without penetrating the floor brush cover 300, thus avoiding leaving holes on the outer side of the floor brush cover 300. Optionally, the fasteners can be screws.

[0214] In some embodiments, such as Figure 23 As shown, the cleaning component 1000 also includes a lamp assembly 700, which is connected to a mounting base. The lamp assembly 700 emits light towards the front cleaning side of the roller brush 200 to illuminate the front cleaning side of the roller brush 200, making it easier to observe the cleaning effect. Optionally, the lamp assembly 700 may include a lighting lamp and / or a germicidal lamp, which provides illumination while simultaneously sterilizing the surface to be cleaned. For example, the germicidal lamp may be an ultraviolet lamp.

[0215] To avoid blocking light, a light groove is provided on the mounting base. The light groove is located on the front side of the mounting base, and openings are provided on the lower side and the side facing the front of the mounting base. The lamp assembly 700 is disposed in the light groove so that the light emits downwards, facilitating the installation of the lamp assembly 700. Optionally, the lamp assembly 700 and the mounting base can be fixed by fasteners, such as screws. In other embodiments, the lamp assembly 700 can also be fixed to the mounting base by snap-fit ​​or magnetic adsorption.

[0216] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A surface cleaning device comprising a cleaning member, characterized by, The cleaning piece comprises: a support (100); a rotating shaft (230) penetrating through the support (100); a rolling brush (200) coaxially fixed on both ends of the rotating shaft (230) extending out of the support (100); a driving mechanism (600) arranged on the support (100), the driving mechanism (600) comprising a driving assembly (610), a transmission assembly (620) and a clutch assembly (630), one of the clutch assembly (630) and the transmission assembly (620) is connected with the output shaft of the driving assembly (610), and the other is connected with the transmission assembly (620), and the transmission assembly (620) is drivingly connected with the rotating shaft (230); the first rotating part (631) comprises an elastic coupling part (6312), the second rotating part (632) is provided with a coupling groove, the circumferential inner wall of the coupling groove forms a coupling surface, the first rotating part (631) is rotationally arranged in the coupling groove, and the coupling part (6312) can abut against the coupling surface and be deformed along the radial direction of the coupling groove; when the surface cleaning device works normally, the coupling part (6312) and the coupling surface are drivingly matched, the clutch assembly (630) is drivingly connected with the driving assembly (610) and the transmission assembly (620), so that the rolling brush (200) rotates; when the rolling brush (200) is subjected to abnormal resistance, the transmission assembly (620) stops moving with the rolling brush (200), and the driving assembly (610) continues to output rotation.

2. The surface cleaning apparatus of claim 1 wherein, the coupling surface is provided with at least two tooth grooves (6322), the at least two tooth grooves (6322) are arranged along the circumference of the second rotating part (632), a tooth part (6321) is formed between adjacent two tooth grooves (6322), and the coupling part (6312) can be deformed and pass through the tooth part (6321); the number of the tooth grooves (6322) is an integer multiple of the number of the coupling parts (6312).

3. The surface cleaning apparatus of claim 2 wherein, in the rotating direction of the first rotating part (631), the tooth groove (6322) comprises a first groove wall (63221) and a second groove wall (63222) connected with each other, the slope of the first groove wall (63221) is greater than that of the second groove wall (63222), and the length of the second groove wall (63222) is greater than that of the first groove wall (63221); in the abutment direction of the coupling part (6312) and the coupling surface, the projection of one end of the coupling part (6312) abutting against the coupling surface can be located in the tooth groove (6322).

4. The surface cleaning apparatus of any of claims 1-3, wherein, the first rotating part (631) further comprises a rotating body (6311), and the coupling part (6312) is formed by extending from the circumferential edge of the rotating body (6311); The coupling parts (6312) are provided in plurality, and the plurality of coupling parts (6312) are arranged at intervals along the circumference of the rotating body (6311), and the coupling parts (6312) extend along the circumference of the rotating body (6311), and the end portions of two adjacent coupling parts (6312) are connected or arranged at intervals; The coupling part (6312) is arranged to be inclined to the direction of approaching the coupling surface along the direction of abutting the coupling surface of the coupling part (6312) and the rotating body (6311); The end of the coupling part (6312) not connected with the rotating body (6311) is bent away from the direction of the coupling surface to form an abutting end (63123).

5. The surface cleaning apparatus of any of claims 1-3, wherein, The initial deformation amount of the coupling part (6312) when abutting the coupling surface is 0.5-1mm; The clutch assembly (630) further comprises a spacing support (634) arranged to rotate in the coupling groove and located between the first rotating part (631) and the second rotating part (632), and the first rotating part (631) is fixedly connected with the spacing support (634), and the coupling part (6312) is arranged at intervals with the coupling groove along the axial direction of the coupling groove; The output shaft of the driving assembly (610) penetrates the first rotating part (631) and the second rotating part (632), and a limiting part is fixed on the output shaft of the driving assembly (610), and the limiting part is arranged on the side of the first rotating part (631) away from the second rotating part (632).

6. The surface cleaning apparatus of any of claims 1-3, wherein, The surface cleaning device further comprises a clean water tank and a steam generating device in communication with the clean water tank, the steam generating device comprises a preheating cavity having a fluid inlet and a vaporization cavity for heating fluid and generating steam, a cavity is formed in the support (100), the vaporization cavity is in communication with the cavity, and the opposite sides of the support (100) are provided with air passing holes (114) in communication with the cavity; A steam cavity is formed in the roller brush (200), and an axial end surface of the roller brush (200) is provided with a communication hole (21211) capable of facing and communicating with the corresponding air passing hole (114); The length of the communication hole (21211) along the circumference of the roller brush (200) is a first length, and the length of the air passing hole (114) along the circumference of the roller brush (200) is a second length, and the first length is less than or equal to the second length; The cleaning part further comprises a steam pipe (410) arranged in the cavity, and the steam pipe (410) communicates the vaporization cavity and the air passing hole (114); An annular steam support (420) is arranged in the cavity, and the axial ends of the steam support (420) are respectively sealingly connected with the inner wall of the cavity to form a converging cavity, and the air passing hole (114) and the steam pipe (410) are respectively in communication with the converging cavity; The steam support (420) is made of elastic material; The outer wall of the support (100) is provided with a boss (115), one axial end of the rolling brush (200) is provided with a limiting groove (2120), the boss (115) extends into the limiting groove (2120), the air passing hole (114) is arranged on the boss (115), and the communication hole (21211) is arranged on the bottom surface of the limiting groove (2120). The boss (115) is provided with a flow guide groove (1151), and the air passing hole (114) is arranged on the bottom surface of the flow guide groove (1151).

7. The surface cleaning apparatus of claim 6, wherein, The rolling brush (200) comprises: A rolling brush body (210) is fixedly sleeved outside the rotating shaft (230), and the steam cavity is formed in the rolling brush body (210); a plurality of air permeation holes (2111) in communication with the steam cavity are arranged on the outer circumferential surface of the rolling brush body (210); A cleaning layer (220) covers the circumferential outer wall of the rolling brush body (210), and the cleaning layer (220) can allow gas and / or liquid to infiltrate or permeate; The rolling brush body (210) comprises: A cylinder body (211) is provided with the air permeation holes (2111); A first end cover (212) is detachably connected to the axial end of the cylinder body (211) facing the support (100), the first end cover (212) is fixedly sleeved on the rotating shaft (230), and the communication hole (21211) is arranged on the first end cover (212); A second end cover (213) is detachably connected to the other axial end of the cylinder body (211); The first end cover (212) comprises: A cover plate (2121) is provided with the communication hole (21211); An annular side portion (2122) is connected to the circumferential edge of the cover plate (2121) and extends along the axial direction of the cylinder body (211) towards the support (100), and the annular side portion (2122) is used for detachable connection with the cylinder body (211); A shaft sleeve (2123) is connected to the side of the cover plate (2121) away from the annular side portion (2122), and the shaft sleeve (2123) is detachably sleeved on the rotating shaft (230); An axial end of the rotating shaft (230) is provided with a clamping groove (231), and the inner wall of the shaft sleeve (2123) is provided with a protrusion (21232), and the protrusion (21232) can be clamped into the clamping groove (231); The clamping groove (231) is an annular groove or a spacing groove; At least two notches (21231) are arranged on one end of the shaft sleeve (2123) facing the second end cover (213), a cantilever is formed between adjacent two notches (21231), and the protrusion (21232) is arranged on the cantilever; One of the inner wall of the shaft sleeve (2123) and the rotating shaft (230) is provided with a spiral groove (232), and the other is provided with a spiral extending protruding rib (21233), and the protruding rib (21233) can be screwed into the spiral groove (232). At least two reinforcing ribs (2124) are arranged on the shaft sleeve (2123) in a circumferential direction, and the reinforcing ribs (2124) are connected to the cover plate (2121); The first end cover (212) and the second end cover (213) each comprise a ring-shaped side plate (2125) extending to the outside of the cylinder (211) in a radial direction of the cylinder (211), and the ring-shaped side plate (2125) is located outside an axial end surface of the cylinder (211) and shields at least part of the cleaning layer (220).

8. The surface cleaning apparatus of claim 6, wherein, The driving assembly (610) is arranged outside the cavity, and the transmission assembly (620) and the clutch assembly (630) are arranged inside the cavity; The cavity comprises a first cavity (102) and a second cavity (101), the transmission assembly (620) is arranged in the first cavity (102), and the air passage (114) is located in the second cavity (101); The bracket (100) comprises: a first bracket body (110); a second bracket body (120), the first bracket body (110) and the second bracket body (120) are detachably connected and enclose the cavity, the first bracket body (110) and / or the second bracket body (120) are provided with a partition, and the partition divides the cavity into the first cavity (102) and the second cavity (101); a bracket sealing ring (130) clamped between the first bracket body (110) and the second bracket body (120) and arranged around the circumference of the second cavity (101); The bracket (100) is provided with a rotating hole (116) in communication with the first cavity (102), the rotating shaft (230) is arranged in the rotating hole (116), and a rotating shaft sealing ring (250) is arranged between the rotating shaft (230) and the inner wall of the rotating hole (116) to seal the gap between the rotating shaft (230) and the rotating hole (116); The cleaning piece further comprises: a protective cover (520) connected with the bracket (100), the protective cover (520) and the bracket (100) enclosing a driving cavity, and the driving assembly (610) being arranged in the driving cavity; a cover sealing ring (140) clamped and fixed between the protective cover (520) and the bracket (100).

9. The surface cleaning apparatus of claim 8, wherein, The bracket (100) is provided with a through hole (111), the output end of the driving assembly (610) passes through the through hole (111) to extend into the cavity, the bracket (100) is provided with a positioning groove around the through hole (111), and the cover sealing ring (140) is embedded in the positioning groove; The outer wall of the support (100) is provided with a first annular flange (112) and a second annular flange (113) around the through hole (111), the first annular flange (112) is located inside the second annular flange (113), at least part of the driving assembly (610) is located in the first annular flange (112), and a positioning groove is formed between the first annular flange (112) and the second annular flange (113).

10. The surface cleaning apparatus of any of claims 1-3, wherein, The cleaning piece further comprises: A fixing seat connected with the support (100) and arranged in axial symmetry relative to the support (100), the driving assembly (610) and the rotating shaft (230) are located on opposite sides of the fixing seat respectively; A floor brush cover (300) sleeved on the support (100) and detachably connected with the fixing seat, the rolling brush (200) is located outside the floor brush cover (300), and the driving assembly (610) is located inside the floor brush cover (300); The cleaning piece further comprises a lamp assembly (700) connected with the fixing seat, the lamp assembly (700) is used for emitting light towards the cleaning front side of the rolling brush (200); A lamp groove is arranged on the front side of the fixing seat, the bottom side and the front side of the lamp groove are both provided with an opening, and the lamp assembly (700) is embedded in the lamp groove; The lamp assembly (700) comprises an illuminating lamp and / or a sterilizing lamp.

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