Surface cleaning device capable of conducting steam cleaning

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a surface cleaning device capable of steam cleaning, which comprises a cleaning part, a water purifying tank and a steam generating device communicated with the water purifying tank, the steam generating device comprises a preheating cavity with a fluid inlet and a vaporizing cavity used for heating fluid and generating steam, the cleaning part comprises a support, a rotating shaft and a steam rolling brush, a cavity is formed in the support, the vaporization cavity is communicated with the cavity, and air passing holes communicated with the cavity are formed in the support; the rotating shaft rotationally penetrates through the bracket; the steam rolling brush is coaxially fixed to the rotating shaft, a steam cavity is formed in the steam rolling brush, a communicating hole is formed in the axial end face of the steam rolling brush, and the communicating hole can directly face and communicate with the air passing hole. The problems that a steam introduction structure is complex, rotation of a steam rolling brush is affected, the ventilation effect is poor, stability is low, and steam distribution is uneven are solved.

Description

Technical Field

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

[0002] A steam mop is a cleaning device that uses high-temperature, high-pressure steam to disinfect, sterilize, and clean the home environment. A steam mop includes a mop handle, a clean water tank mounted on the mop handle, a steam generator connected to the clean water tank, and a floor brush located at the bottom of the mop handle. The floor brush includes a steam roller brush. The steam generated by the steam generator needs to flow from the mop handle into the steam roller brush in the floor brush. The steam roller brush contacts the surface to be cleaned, and by rolling the steam roller brush on the surface to be cleaned, combined with the high-temperature, high-pressure steam, the purpose of disinfection, sterilization, and cleaning is achieved.

[0003] In existing steam mops, the structure for introducing steam into the steam roller brush is complex. Steam enters the steam roller brush through the circumferential outer wall, which not only affects the rotation of the steam roller brush but also results in poor ventilation and low structural stability. This can easily lead to uneven steam distribution within the steam roller brush, resulting in insufficient or excessive steam causing excessive water accumulation, thus affecting the cleaning effect. Utility Model Content

[0004] The purpose of this invention is to provide a surface cleaning device that can be steam cleaned, which can solve the problems of complex structure for introducing steam, affecting the rotation of steam rollers, poor ventilation, low stability, and uneven steam distribution.

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

[0006] A steam-cleanable surface cleaning device includes a cleaning component, a clean water tank, and a steam generator connected to the clean water tank. The steam generator includes a preheating chamber with a fluid inlet and a vaporization chamber for heating the fluid and generating steam. The cleaning component includes:

[0007] A support frame, wherein a cavity is formed inside the support frame, the vaporization chamber is connected to the cavity, and the support frame is provided with an air passage hole that is connected to the cavity;

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

[0009] A steam roller brush is fixed coaxially to the rotating shaft. A steam chamber is formed inside the steam roller brush. A connecting hole is provided on the axial end face of the steam roller brush. The connecting hole is aligned with and connected to the corresponding air passage hole.

[0010] As an alternative to the aforementioned steam-cleanable surface cleaning device, a plurality of connecting holes are provided, and the plurality of connecting holes are spaced apart along the circumference of the steam roller.

[0011] As an alternative to the aforementioned steam-cleanable surface cleaning device, the length of two adjacent connecting holes along the circumference of the steam brush is a first length, and the length of the air passage hole along the circumference of the steam brush is a second length, wherein the first length is less than or equal to the second length.

[0012] As an alternative to the aforementioned steam-cleanable 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.

[0013] As an optional embodiment of the aforementioned steam-cleanable surface cleaning device, an annular steam support is provided inside the cavity, with the two axial ends of the steam support respectively sealed to the inner wall of the cavity to form a confluence cavity, and the air passage and the steam pipe respectively communicating with the confluence cavity.

[0014] As an alternative to the aforementioned steam-cleanable surface cleaning device, the steam support is made of an elastic material.

[0015] As an optional solution for the aforementioned steam-cleanable surface cleaning device, the outer wall of the bracket is provided with a boss, one axial end of the steam roller 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.

[0016] As an alternative to the aforementioned steam-cleanable 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.

[0017] As an alternative to the aforementioned steam-cleanable surface cleaning device, the steam roller brush includes:

[0018] 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.

[0019] A cleaning layer, covering the circumferential outer wall of the roller brush body, allows gas and / or liquid to wet or permeate.

[0020] As an alternative to the aforementioned steam-cleanable surface cleaning device, the roller brush body includes:

[0021] A cylindrical body, on which the ventilation holes are provided;

[0022] 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.

[0023] The second end cap is detachably connected to the other axial end of the cylinder.

[0024] As an alternative to the aforementioned steam-cleanable surface cleaning device, the first end cap includes:

[0025] A cover plate, wherein the cover plate is provided with the communicating hole;

[0026] 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;

[0027] 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.

[0028] As an alternative to the aforementioned steam-cleanable 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.

[0029] As an alternative to the aforementioned steam-cleanable surface cleaning device, the slot is an annular slot or a spaced slot.

[0030] As an alternative to the aforementioned steam-cleanable surface cleaning device, the end of the bushing facing the second end cap is provided with at least two notches, and a cantilever is formed between two adjacent notches, with the protrusion disposed on the cantilever.

[0031] As an alternative to the aforementioned steam-cleanable 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.

[0032] As an alternative to the aforementioned steam-cleanable 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.

[0033] As an alternative to the aforementioned steam-cleanable 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.

[0034] As an alternative to the aforementioned steam-cleanable surface cleaning device, the cleaning component further includes:

[0035] The driving mechanism includes a driving component and a transmission component that are connected by transmission. The driving component is disposed outside the cavity, and the transmission component is disposed inside the cavity and connected to the rotating shaft, so that the driving mechanism can drive the rotating shaft to rotate the steam roller brush.

[0036] As an alternative to the aforementioned steam-cleanable 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.

[0037] As an alternative to the aforementioned steam-cleanable surface cleaning device, the support includes:

[0038] First frame;

[0039] 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.

[0040] A bracket sealing ring is clamped between the first frame and the second frame and is arranged circumferentially around the second cavity.

[0041] As an optional solution for the aforementioned steam-cleanable 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.

[0042] As an alternative to the aforementioned steam-cleanable surface cleaning device, the cleaning component further includes:

[0043] 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;

[0044] The cover sealing ring is clamped and fixed between the protective cover and the bracket.

[0045] As an alternative to the aforementioned steam-cleanable 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.

[0046] As an alternative to the aforementioned steam-cleanable 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.

[0047] As an alternative to the aforementioned steam-cleanable surface cleaning device, the drive mechanism further includes a clutch assembly disposed within the cavity. The clutch assembly includes a first rotating member and a second rotating member, one of which is connected to the output shaft of the drive assembly, and the other is connected to the transmission assembly.

[0048] The first rotating component and the second rotating component can engage in transmission when the transmitted torque is less than a preset value, and can disengage from transmission when the transmitted torque is greater than or equal to the preset value.

[0049] As an alternative to the aforementioned steam-cleanable surface cleaning device, the first rotating member includes an elastic first coupling portion, and the second rotating member includes a coupling surface that abuts against the first coupling portion. At least two tooth grooves are provided on the coupling surface, and the at least two tooth grooves are arranged along the circumference of the second rotating member. A tooth portion is formed between two adjacent tooth grooves, and the first coupling portion can deform and pass over the tooth portion.

[0050] As an alternative to the aforementioned steam-cleanable surface cleaning device, the first rotating member further includes a rotating body, and the first coupling portion is formed by extending the circumferential edge of the rotating body.

[0051] As an alternative to the steam-cleanable surface cleaning device described above, multiple first coupling parts are provided, and the multiple first coupling parts are spaced apart along the circumference of the rotating body. The first coupling parts extend along the circumference of the rotating body, and the ends of two adjacent first coupling parts are connected or spaced apart.

[0052] And / or, along the axial direction of the first rotating member, the first coupling portion is inclined from the rotating body toward the coupling surface;

[0053] And / or, along the axial direction of the first rotating member, the end of the first coupling portion is bent away from the coupling surface to form an abutment end.

[0054] As an alternative to the aforementioned steam-cleanable surface cleaning device, the number of the toothed grooves is an integer multiple of the number of the first coupling parts.

[0055] As an alternative to the aforementioned steam-cleanable surface cleaning device, along the rotation direction of the first rotating member, the toothed 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.

[0056] As an alternative to the aforementioned steam-cleanable surface cleaning device, the initial deformation of the first coupling part when it comes into contact with the coupling surface is 0.5-1mm.

[0057] As an alternative to the aforementioned steam-cleanable surface cleaning device, the coupling surface is the axial end face of the second rotating member;

[0058] Alternatively, the axial end face of the second rotating component is recessed to form a coupling groove, and the coupling surface is the circumferential inner wall of the coupling groove.

[0059] As an alternative to the aforementioned steam-cleanable surface cleaning device, along the contact direction between the first coupling part and the coupling surface, the projection of the end of the first coupling part that abuts against the coupling surface can be located within the tooth groove.

[0060] As an alternative to the aforementioned steam-cleanable surface cleaning device, the clutch assembly further includes a pre-compression member disposed on the side of the first rotating member opposite to the second rotating member. Along the axial direction of the first rotating member, the pre-compression member abuts against the first rotating member to deform the first coupling portion.

[0061] As an alternative to the aforementioned steam-cleanable 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 steam 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 aforementioned steam-cleanable 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 steam roller.

[0065] As an alternative to the aforementioned steam-cleanable 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 steam-cleanable 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 steam-cleanable surface cleaning device provided by this utility model allows steam to be introduced into the steam roller brush through air holes on the bracket and connecting holes on the axial end face of the steam roller brush. The connecting holes can be aligned with the air holes during the rotation of the steam roller brush, ensuring steam entry. The structure is simple and does not affect the rotation of the steam roller brush. The bracket supplies steam to the steam roller brushes on both sides through air holes on both sides, resulting in a simple structure. The size of the air holes and connecting holes can be designed according to the diameter of the steam roller brush, with a large flow area to ensure sufficient steam entry. Steam is introduced from one axial side of the steam roller brush, and the steam can flow along the axial direction of the steam roller brush under inertia to fully diffuse within the steam roller brush, resulting in more uniform steam distribution. The steam enters the steam chamber of the steam roller brush and makes full contact with the steam roller brush through a cavity immersion method, improving the cleaning effect and user experience.

[0069] The drive mechanism also includes a clutch assembly, which can drive the drive assembly and the transmission assembly. When the steam roller brush seizes up, the drive assembly can disconnect the transmission assembly and the drive assembly, allowing the drive assembly to continue to output rotation, while the transmission assembly will stop moving with the steam roller brush, thus preventing the drive motor from stalling.

[0070] By cooperating with the first and second rotating parts, the transmission and drive components can be automatically disconnected after the steam roller brush seizes up, thanks to the mechanical structure design. This is highly responsive, eliminates the need for electrical control, and helps reduce costs.

[0071] The first and second rotating components can be stacked along the axial direction, resulting in small size and space occupation, which helps to reduce costs. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the steam-cleanable surface cleaning device provided in Embodiment 1 of this utility model;

[0073] Figure 2 This is a first schematic diagram of the cleaning component provided in Embodiment 1 of this utility model;

[0074] Figure 3 This is a first schematic diagram of the cleaning component provided in Embodiment 1 of this utility model without the brush cover assembled;

[0075] Figure 4 This is a second schematic diagram of the cleaning component provided in Embodiment 1 of this utility model without the brush cover assembled;

[0076] Figure 5This is a first schematic diagram of the steam roller brush provided in Embodiment 1 of this utility model;

[0077] Figure 6 This is a side view of the second frame, steam pipe, and part of the drive mechanism provided in Embodiment 1 of this utility model;

[0078] Figure 7 This is a cross-sectional view of the steam roller and bracket provided in Embodiment 1 of this utility model;

[0079] Figure 8 This is a cross-sectional view of the steam roller brush provided in Embodiment 1 of this utility model without the cleaning layer assembled;

[0080] Figure 9 This is a first schematic diagram of the first end cap provided in Embodiment 1 of this utility model;

[0081] Figure 10 This is a second schematic diagram of the first end cap provided in Embodiment 1 of this utility model;

[0082] Figure 11 This is a front view of the bracket and steam roller provided in Embodiment 1 of this utility model;

[0083] Figure 12 This is a second schematic diagram of the steam roller brush provided in Embodiment 1 of this utility model;

[0084] Figure 13 This is a structural diagram of the cleaning component provided in Embodiment 1 of this utility model without the brush cover and protective cover assembled;

[0085] Figure 14 This is a side view of the bracket provided in Embodiment 1 of this utility model;

[0086] Figure 15 yes Figure 14 Sectional view along line AA;

[0087] Figure 16 This is a schematic diagram of the drive mechanism and rotating shaft provided in Embodiment 1 of this utility model;

[0088] Figure 17 This is a cross-sectional view of the clutch assembly provided in Embodiment 1 of this utility model;

[0089] Figure 18 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 1 of this utility model;

[0090] Figure 19 This is a schematic diagram of the structure of the second rotating component provided in Embodiment 1 of this utility model;

[0091] Figure 20 This is a first cross-sectional view of the second rotating component provided in Embodiment 1 of this utility model;

[0092] Figure 21 This is a second cross-sectional view of the second rotating component provided in Embodiment 1 of this utility model;

[0093] Figure 22 This is a third schematic diagram of the cleaning component provided in Embodiment 1 of this utility model when the floor brush cover is not installed;

[0094] Figure 23 This is a schematic diagram of the structure of the bracket and transmission assembly provided in Embodiment 1 of this utility model;

[0095] Figure 24 This is a fourth schematic diagram of the cleaning component provided by this utility model when the floor brush cover is not installed;

[0096] Figure 25 This is a second schematic diagram of the cleaning component provided in Embodiment 1 of this utility model;

[0097] Figure 26 This is a partial structural schematic diagram of the cleaning component provided in Embodiment 2 of this utility model;

[0098] Figure 27 This is a schematic diagram of the structure of the second rotating component provided in Embodiment 2 of this utility model;

[0099] Figure 28 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 2 of this utility model;

[0100] Figure 29 This is a cross-sectional view of a portion of the structure of the cleaning component provided in Embodiment 2 of this utility model.

[0101] In the picture:

[0102] 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, Steam roller brush; 210, Brush body; 211, Cylinder; 2 111. 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. Rotating shaft; 231. Slot; 232. Spiral groove; 240. Bearing; 250. Shaft seal 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. From 630. Drive pulley; 631. Clutch assembly; 631. First rotating component; 6311. Rotating body; 6312. First coupling part; 63121. Radial extension section; 63122. Circumferential extension section; 63123. Abutment end; 6313. Insertion part; 632. Second rotating component; 6321. Tooth; 6322. Tooth groove; 63221. First groove wall; 63222. Second groove wall; 633. Preload component; 634. Snap ring; 700. Lamp assembly.

[0103] 2000, Body; 3000, Base; 3100, Base Plate; 3110, Brush Groove; 3200, Front Support Column; 3300, Rear Support Column. Detailed Implementation

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] Example 1

[0109] like Figure 1 As shown, this embodiment provides a steam-cleanable 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 steam 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 steam 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.

[0110] Alternatively, the surface cleaning device can be a steam mop or other device that includes a steam roller brush 200.

[0111] 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 a clean water tank, and the vaporization chamber is connected to a steam roller 200.

[0112] 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.

[0113] refer to Figure 1 As shown, in some embodiments, the steam-cleanable surface cleaning device also includes a base 3000, which supports and fixes 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.

[0114] 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 steam 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 steam 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.

[0115] 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.

[0116] To improve the fixation of the main body of the device, a roller brush groove 3110 is provided on the base plate 3100. The steam roller brush 200 can be placed in the roller brush groove 3110 to restrict the position of the steam roller brush 200, thereby positioning the cleaning component 1000 and 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 steam roller brush 200 to enhance the positioning effect.

[0117] In existing devices with steam rollers, steam is typically introduced into the steam roller through pipes via the circumferential outer wall of the steam roller. This complex structure not only affects the rotation of the steam roller but also results in poor ventilation, low structural stability, and uneven steam distribution within the steam roller. This can lead to problems such as insufficient or excessive steam, resulting in excessive water accumulation and thus affecting the cleaning effect.

[0118] To solve the above problems, such as Figure 2 and Figure 3 As shown, the cleaning component 1000 in this embodiment also includes a bracket 100 and a rotating shaft 230. 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. The steam roller brush 200 is coaxial with and fixed to the rotating shaft 230. A cavity is formed inside the bracket 100, and the vaporization chamber of the steam generator communicates with the cavity, such as... Figure 4 As shown, the bracket 100 is provided with an air vent 114 communicating with the cavity; as Figure 5 As shown, a steam chamber is formed inside the steam roller brush 200, and a connecting hole 21211 is provided on the axial end face of the steam roller brush 200. The connecting hole 21211 can be directly opposite to and connected with the air passage hole 114.

[0119] Steam is introduced into the steam roller brush 200 through the air passage 114 on the bracket 100 and the connecting hole 21211 on the axial end face of the steam roller brush 200. The connecting hole 21211 can be aligned with the air passage 114 during the rotation of the steam roller brush 200, ensuring steam passage. The structure is simple and does not affect the rotation of the steam roller brush 200. The size of the air passage 114 and the connecting hole 21211 can be designed according to the diameter of the steam roller brush 200, with a large flow area to ensure sufficient steam passage. Steam is introduced from one axial side of the steam roller brush 200, and the steam can flow along the axial direction of the steam roller brush 200 under inertia to fully diffuse within the steam roller brush 200, resulting in more uniform steam distribution. The steam enters the steam chamber of the steam roller brush 200 and makes full contact with the steam roller brush 200 through cavity immersion, improving the cleaning effect and user experience.

[0120] like Figure 5 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 steam roller brush 200 so that during the rotation of the steam roller brush 200, multiple connecting holes 21211 can be directly opposite the air passage hole 114, thereby increasing the proportion of time that the air passage hole 114 is connected to the connecting hole 21211 during the rotation of the steam roller brush 200, and ensuring the smooth passage of steam.

[0121] For example, such as Figure 5 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.

[0122] It should be noted that the sidewall of the steam roller brush 200 allows steam to pass through. After the steam enters the steam chamber through the air passage 114, it passes through the circumferential sidewall of the steam roller brush 200 and flows to the outside of the steam roller brush 200, which can fully wet the steam roller brush 200 and contact the surface to be cleaned, thereby improving the cleaning effect.

[0123] To ensure steam can enter the steam chamber, in some embodiments, the length of two adjacent connecting holes 21211 along the circumference of the steam brush 200 is a first length, and the length of the vent hole 114 along the circumference of the steam 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 steam 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.

[0124] In some embodiments, at least one steam roller brush 200 is provided on each of the opposite sides of the support 100, and the support 100 is provided with an air passage 114 for each steam roller brush 200 on each side to allow steam to be introduced into the steam roller brushes 200 on both sides respectively.

[0125] For example, a rotating shaft 230 is provided, with its middle part passing through the bracket 100. Both ends of the rotating shaft 230 extend out of the bracket 100. Steam roller brushes 200 are provided on opposite sides of the rotating shaft 230 to increase the cleaning area. Correspondingly, an air hole 114 is provided on each opposite side of the bracket 200 to provide steam to the steam roller brushes 200 on both sides using a simple structure.

[0126] In other embodiments, at least two rotating shafts 230 may be provided, and each rotating shaft 230 is provided with two steam rollers 200.

[0127] 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 steam roller brush 200. The steam 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] For example, the vapor support 420 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, robust crystalline structure, and also possesses a variety of 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.

[0133] like Figure 4 and Figure 5 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 steam 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 steam 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.

[0134] In some embodiments, such as Figure 4As 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.

[0135] In some embodiments, such as Figure 5 As shown, the steam roller brush 200 includes a brush body 210 and a cleaning layer 220. The brush body 210 is fixedly sleeved on the outside of the rotating shaft 230 to rotate synchronously with the rotating shaft 230. A steam chamber is formed inside the brush body 210, and a connecting hole 21211 is provided on the axial end face of the brush body 210. The cleaning layer 220 is sleeved on the circumferential outer wall of the 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 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 brush body 210, improving the uniformity of steam distribution, thereby fully wetting the cleaning layer 220 and improving the cleaning effect.

[0136] 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.

[0137] like Figure 7 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.

[0138] To avoid interfering with the rotation of the brush body 210 and the steam flow, in some embodiments, such as Figure 7 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.

[0139] 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.

[0140] 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.

[0141] like Figures 8-10 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] 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 8 and Figure 11 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.

[0147] 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.

[0148] 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 8 , Figure 10 and Figure 11As 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.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] In some embodiments, such as Figure 12 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.

[0155] 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.

[0156] 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.

[0157] To enable the steam roller brush 200 to rotate, the cleaning component 1000 also includes a drive mechanism 600, which is mounted on the bracket 100 and connected to the rotating shaft 230 to drive the rotating shaft 230 to rotate the steam roller brush 200.

[0158] Specifically, to ensure safe use and structural reliability, such as Figure 2 and Figure 13 As shown, the drive mechanism 600 includes a drive assembly 610 and a transmission assembly 620 connected by a transmission link. The drive assembly 610 is disposed outside the bracket 100, while the transmission assembly 620 and the steam pipe 410 are disposed within 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.

[0159] like Figure 13 As shown, in some embodiments, the support 100 includes a first frame 110 and a second frame 120 that are detachably connected. A cavity is formed 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] 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.

[0165] To improve the stability of the bracket sealing ring 130, at least one of the first frame 110 and the second frame 120 has a double-layer plate for the stiffening plate. The double-layer plate forms a sealing groove, and 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.

[0166] 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 body used to connect the machine body 2000. The rotary support end is used to rotatably connect the rotating shaft 230 and the steam roller brush 200. The transmission assembly 620 is installed between the rotary support end and the connecting end.

[0167] In some embodiments, such as Figure 14and Figure 15 As shown, the slewing support end is provided with a rotating hole 116, which is connected to the first cavity 102. 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 102 to drive the rotating shaft 230 to rotate.

[0168] 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.

[0169] 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 steam roller brush 200 from entering the first cavity 102 through the assembly gap.

[0170] To reduce the resistance encountered during the rotation of the shaft 230, a collar is also provided within the inner ring of the shaft seal 250. The collar is located between the shaft seal 250 and the shaft 230, and is fitted over the shaft 230. The inner diameter of the collar matches the outer diameter of the shaft 230, allowing the shaft 230 to rotate relative to the collar. Compared to the shaft seal 250 directly contacting the shaft 230, the friction between the collar and the shaft 230 is lower, resulting in less resistance to the rotation of the shaft 230 and reducing the driving force on the steam brush 200.

[0171] Alternatively, the collar can be made of a metallic material to improve its wear resistance and extend its service life.

[0172] In some embodiments, the first frame 110 and the second frame 120 are both 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, and both axial ends of the rotating shaft 230 extend out of the bracket 100, and each rotating hole 116 is provided with a rotating shaft sealing ring 250 and a shaft collar.

[0173] In some embodiments, such as Figure 14 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.

[0174] 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.

[0175] In this embodiment, as Figure 15 and Figure 16 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.

[0176] 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.

[0177] 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.

[0178] To prevent the steam brush 200 from seizing due to external resistance and causing the drive motor 611 to stall, the drive mechanism 600 also includes a clutch assembly 630. The clutch assembly 630 can drive the drive assembly 610 and the transmission assembly 620. When the steam brush 200 seizes, the transmission assembly 620 and the drive assembly 610 disengage, the drive assembly 610 can continue to output rotation, while the transmission assembly 620 will stop moving with the steam brush 200, thereby preventing the drive motor 611 from stalling.

[0179] To achieve the clutch function, in some embodiments, such as Figure 17As 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 steam brush 200 experiences normal resistance, it can rotate normally. The drive assembly 610 drives the second rotating member 632 to rotate via the first rotating member 631, thereby transmitting the rotation to the steam brush 200 through the transmission assembly 620, causing the steam brush 200 to rotate and clean the ground. When the steam brush 200 experiences abnormal resistance and cannot rotate, the second rotating member 632 and the transmission assembly 620 stop moving along with the steam brush 200. 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 steam brush.

[0180] Specifically, the first rotating component 631 is coaxially mounted and fixed with the output shaft of the reducer 612, and the second rotating component 632 is coaxially mounted and fixed with the drive gear. When the steam brush 200 is locked, the second rotating component 632 and the transmission assembly 620 stop moving with the steam brush 200, while the first rotating component 631 can rotate under the action of the drive assembly 610, thus preventing the drive assembly 610 from stalling.

[0181] 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.

[0182] 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 steam 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.

[0183] In some embodiments, such as Figure 18 and Figure 19As shown, the first rotating member 631 includes an elastic first coupling portion 6312, and the second rotating member 632 includes a coupling surface that abuts against the first coupling portion 6312. A protruding blocking portion is provided on the coupling surface, and the first coupling portion 6312 can deform and pass over the protruding blocking portion. When the transmitted torque is less than a preset value, the first coupling portion 6312 abuts against the coupling surface and reaches equilibrium. The static friction between the first coupling portion 6312 and the coupling surface restricts their relative movement, so that the first rotating member 631 and the second rotating member 632 can transmit torque in a relatively fixed position. 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 first coupling part 6312 will slide on the coupling surface and pass over the protruding blocking part. The first 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 steam roller brush 200 is locked.

[0184] In some embodiments, the first rotating member 631 and the second rotating member 632 can be stacked along the axial direction, which results in small size, small space occupation, and helps to reduce costs.

[0185] In some embodiments, the first rotating member 631 further includes a rotating body 6311, and the first coupling portion 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.

[0186] In some embodiments, multiple first coupling portions 6312 are provided, and the multiple first coupling portions 6312 are arranged at intervals along the circumference of 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 steam roller brush 200.

[0187] To reduce the radial dimension of the clutch assembly 630, the first coupling portion 6312 may extend circumferentially along the rotating body 6311 to reduce the radial dimension of the first coupling portion 6312 along the rotating body 6311, thereby reducing the radial dimension of the first rotating member 631.

[0188] Specifically, the first coupling part 6312 includes a radial extension section 63121 and a circumferential extension section 63122. The radial extension section 63121 connects the rotating body 6311 and the circumferential extension section 63122. The radial extension section 63121 extends approximately radially along the rotating body 6311, while the circumferential extension section 63122 is spaced apart from the rotating body 6311, thereby avoiding interference between the circumferential extension section 63122 and the rotating body 6311. The circumferential extension section 63122 is used to abut against the coupling surface. The direction of the abutment force on the first coupling part 6312 includes a separation force along the tangential direction of the rotating body 6311 and a component force along the axial direction of the rotating body 6311. The tangential component force is adapted to the extension direction of the circumferential extension section 63122, which enables the first coupling part 6312 to deform only in the axial direction of the rotating body 6311, thereby ensuring the stability of the clutch function.

[0189] To enable the first coupling part 6312 to have a certain deformation capacity in the axial direction, the first coupling part 6312 is inclined from the rotating body 6311 toward the direction close to the second rotating member 632 along the contact direction between the first coupling part 6312 and the coupling surface. The contact direction between the first coupling part 6312 and the coupling surface is the axial direction of the first rotating member 631.

[0190] To prevent the first coupling part 6312 from jamming, the end of the circumferential extension 63122 along the axial direction of the first rotating member 631 is bent in a direction 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 axial direction of the first rotating member 631 in a direction away from the second rotating member 632, so as to ensure the stability of the clutch function.

[0191] 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 19 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 first coupling portions 6312, thereby ensuring that when the first rotating member 631 rotates to any position, each first coupling portion 6312 corresponds to a toothed groove 6322.

[0192] Optionally, at the same time, the contact positions of each first coupling part 6312 and the corresponding tooth groove 6322 may be different or the same.

[0193] 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 first coupling part 6312 is completely located within the tooth groove 6322 along the contact direction between the first 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 first coupling part 6312 and the coupling surface is the axial direction of the first rotating member 631.

[0194] like Figures 19-21 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.

[0195] 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 first 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.

[0196] 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 disconnect the transmission connection.

[0197] 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.

[0198] 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.

[0199] To ensure that the first coupling part 6312 has a certain pre-compression deformation, such as Figure 17As shown, the clutch assembly 630 also includes a preload member 633, which is disposed on the side of the first rotating member 631 opposite to the second rotating member 632. Along the axial direction of the first rotating member 631, the preload member 633 abuts against the first rotating member 631 to deform the first coupling portion 6312. In this embodiment, the preload member 633 is fixedly connected to the output shaft of the drive assembly 610 to press the first rotating member 631 against the second rotating member 632, thereby placing the first coupling portion 6312 in a preloaded state. That is, the distance between the preload member 633 and the coupling surface is less than the initial size of the first coupling portion 6312, which refers to the axial dimension of the first rotating member 631 of the first coupling portion 6312 when the first coupling portion 6312 is not subjected to external force.

[0200] Optionally, along the axial direction of the first rotating member 631, the size difference between the first coupling part 6312 and the distance between the preload member 633 and the coupling surface can be 0.5mm-1mm, that is, the preload interference of the first coupling part 6312 is 0.5mm-1mm.

[0201] It is understandable that the pre-compression interference of the first coupling part 6312 refers to the initial deformation of the first coupling part 6312 when it comes into contact with the coupling surface, in the state where the steam brush 200 is not subjected to resistance and the drive assembly 610 is not started.

[0202] For example, typical but non-limiting data for the preload interference of the first coupling part 6312 are 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, and 1mm.

[0203] In this embodiment, the preload 633 is sleeved on the output shaft of the drive assembly 610, and the preload 633 is axially fixed by a snap ring 634 and a first rotating member 631. Specifically, the rotating body 6311 has an insertion part 6313 at the edge of the first central hole; the preload 633 has a second central hole, and the output shaft of the drive assembly 610 passes through the second central hole. The inner wall of the second central hole has a slot, and the insertion part 6313 can be inserted into the slot, which restricts the relative rotation of the preload 633 and the first rotating member 631 on one hand, and realizes the axial positioning of the preload 633 and the first rotating member 631 on the other hand; the snap ring 634 is fixedly sleeved on the output shaft of the drive assembly 610 and is located on the side of the preload 633 opposite to the first rotating member 631. The snap ring 634 and the first rotating member 631 cooperate to realize the axial positioning of the preload 633.

[0204] It should be noted that the second center hole is in mate with the flat part of the output shaft of the drive assembly 610. The shape of the second center hole is the same as that of the flat part, and their sizes are matched.

[0205] In some embodiments, the axial end face of the second rotating member 632 facing the first rotating member 631 is provided with a mating groove, and the tooth groove 6322 is located in the mating groove. At least part of the first rotating member 631 can be located in the mating groove to position the first rotating member 631 and the second rotating member 632 and reduce the axial dimension of the clutch assembly 630.

[0206] In this embodiment, the diameter of the first rotating member 631 is 30-40 mm, preferably 35.4 mm. 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. 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. mm; the angle between the first coupling part 6312 and the plane containing the rotating body 6311 is 10°-25°, preferably 18°, and typical but non-limiting data for this angle are 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°; the width of the first coupling part 6312 is 2-4 mm, preferably 3 mm, and typical but non-limiting data for the width of the first coupling part 6312 are 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm.

[0207] 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 mating groove is 30-40 mm, preferably 36 mm. Typical but non-limiting data for the diameter of the mating 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.

[0208] In some embodiments, the ends of multiple first coupling portions 6312 can be connected sequentially by an annular plate, and the annular plate can be bent to provide abutment ends 63123 to improve the strength of the first rotating member 631.

[0209] In some embodiments, the clutch assembly 630 is disposed within the first cavity 102, making the clutch assembly 630 and the transmission assembly 620 more compactly assembled and preventing steam from contacting the clutch assembly 630. Compared with disposing the clutch assembly 630 on the outside of the bracket 100, the size of the cleaning component 1000 along the axial direction of the steam roller brush 200 can be reduced, thereby making the cleaning component 1000 smaller and more advantageous for cleaning confined spaces.

[0210] In other embodiments, the clutch assembly 630 may also be disposed on the outside of the bracket 100.

[0211] To protect the driver component 610, such as Figure 22 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.

[0212] like Figure 23 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.

[0213] 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.

[0214] In some embodiments, the steam 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 22 and Figure 24 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 steam roller brush 200 structure are more compact and interference with the rotation of the steam roller brush 200 is avoided.

[0215] 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 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 steam 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 steam roller brush 200.

[0216] 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.

[0217] To ensure the clean part 1000 has a neat and aesthetically pleasing appearance, such as Figure 25 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 steam roller brush 200 is located outside the floor brush cover 300.

[0218] 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 body 2000.

[0219] 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.

[0220] In some embodiments, such as Figure 24 As shown, the cleaning component 1000 also includes a lamp assembly 700, which is connected to the mounting base. The lamp assembly 700 emits light toward the front cleaning side of the steam roller brush 200 to illuminate the front cleaning side of the steam roller brush 200, making it easier to observe the cleaning effect.

[0221] 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.

[0222] To avoid blocking light, a light trough is provided on the mounting base. The light trough is located on the front side of the mounting base. Openings are provided on the lower side of the light trough and on the side facing the front of the cleaning unit. The light assembly 700 is installed in the light trough so that the light shines downwards, which facilitates the installation of the light assembly 700.

[0223] Optionally, the lamp assembly 700 and the mounting base can be secured with fasteners, such as screws. In other embodiments, the lamp assembly 700 can also be secured to the mounting base by snap-fit ​​or magnetic adsorption.

[0224] Example 2

[0225] This embodiment provides a steam-cleanable surface cleaning device, which has a structure that is largely the same as that in Embodiment 1, except for the specific structure of the clutch assembly 630.

[0226] In this embodiment, as Figure 26 and Figure 27 As shown, the axial end face of the second rotating member 632 is recessed to form a coupling groove, and the coupling surface is the circumferential inner wall of the coupling groove. Correspondingly, the first coupling part 6312 in the first rotating member 631 is pre-pressed along the radial direction to abut against the coupling surface to realize the clutch function.

[0227] like Figure 28 As shown, the first coupling part 6312 extends from the circumferential edge of the rotating body 6311 and is gradually inclined towards the coupling surface from the edge of the rotating body 6311 along the radial direction of the rotating body 6311, so that the first coupling part 6312 has a certain deformation capability in the radial direction.

[0228] Combination Figures 26-29As shown, during the assembly of the clutch assembly 630, when the pre-pressure component 633 is installed by pressing, the force applied by the pre-pressure component 633 to the first rotating component 631 is axial, while the pre-pressure direction of the first coupling part 6312 and the coupling surface is radial. Therefore, the pressure applied during installation will not affect the pre-pressure amount of the first coupling part 6312, making it easier to control the pre-pressure amount of the first rotating component 631. During assembly, the rotating body 6311 can also reach the assembly position with less effort. The pre-pressure component 633 is axially fixed to the first rotating component 631 by the snap ring 634, and the snap ring 634 can be quickly snapped onto the output shaft of the drive assembly 610.

[0229] 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 steam cleanable surface cleaning device comprising a cleaning member, a clean water tank and a steam generating device in communication with the clean water tank, characterised in that, The steam generating device comprises a preheating cavity with a fluid inlet and a vaporization cavity for heating fluid and generating steam, and the cleaning member comprises: a bracket (100) in which a cavity is formed, the vaporization cavity being in communication with the cavity, the bracket (100) being provided with a gas passing hole (114) in communication with the cavity; a rotating shaft (230) rotatably arranged in the bracket (100); a steam roller brush (200) coaxially arranged with the rotating shaft (230) and fixed thereto, the steam roller brush (200) being provided with a through hole (21211) at an axial end face thereof, the through hole (21211) being capable of being in communication with the corresponding gas passing hole (114).

2. The steam-cleanable surface cleaning device of claim 1, wherein, A plurality of through holes (21211) are provided, and the through holes (21211) are arranged at intervals along the circumference of the steam roller brush (200); the length of two adjacent through holes (21211) along the circumference of the steam roller brush (200) is a first length, and the length of the gas passing hole (114) along the circumference of the steam roller brush (200) is a second length, the first length being less than or equal to the second length.

3. The steam-cleanable surface cleaning device of any of claims 1-2, wherein, The cleaning member further comprises a steam pipe (410) arranged in the cavity, the steam pipe (410) being in communication with the vaporization cavity and the gas passing hole (114); an annular steam bracket (420) is arranged in the cavity, axial ends of the steam bracket (420) being sealingly connected to the inner wall of the cavity to form a converging cavity, the gas passing hole (114) and the steam pipe (410) being in communication with the converging cavity; the steam bracket (420) is made of an elastic material.

4. The steam-cleanable surface cleaning device of any one of claims 1-2, wherein, An outer wall of the bracket (100) is provided with a boss (115), an axial end of the steam roller brush (200) is provided with a limiting groove, the boss (115) extends into the limiting groove, the gas passing hole (114) is arranged on the boss (115), and the through hole (21211) is arranged on the bottom surface of the limiting groove; the boss (115) is provided with a flow guide groove (1151), and the gas passing hole (114) is arranged on the bottom surface of the flow guide groove (1151); the steam roller brush (200) comprises: a roller brush body (210) fixedly sleeved on the rotating shaft (230), the steam cavity being formed in the roller brush body (210), and a plurality of air permeable holes (2111) in communication with the steam cavity being arranged on the outer circumferential surface of the roller brush body (210); a cleaning layer (220) covering the circumferential outer wall of the roller brush body (210), the cleaning layer (220) allowing gas and / or liquid to be infiltrated or permeated.

5. The steam-cleanable surface cleaning device of claim 4, wherein, the roller brush body (210) comprises: a cylinder body (211) provided with the air permeable holes (2111). A first end cover (212) is detachably connected to an axial end of the cylinder (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 (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 a circumferential edge of the cover plate (2121) and extends along the axial direction of the cylinder (211) towards the support (100), and the annular side portion (2122) is used for detachable connection with the cylinder (211); A shaft sleeve (2123) is connected to a 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 an 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; An end of the shaft sleeve (2123) facing the second end cover (213) is provided with at least two notches (21231), and a cantilever is formed between adjacent two notches (21231), and the protrusion (21232) is arranged on the cantilever.

6. The steam-cleanable surface cleaning device of claim 5, wherein, 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 the 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 an annular side plate (2125) extending outwardly along the radial direction of the cylinder (211), the annular side plate (2125) is located outwardly of the axial end surface of the cylinder (211) and shields at least part of the cleaning layer (220).

7. The steam-cleanable surface cleaning device of any of claims 1-2, wherein, The cleaning piece further comprises: A driving mechanism (600) comprising a driving assembly (610) and a transmission assembly (620) in transmission connection, the driving assembly (610) is arranged outside the cavity, the transmission assembly (620) is arranged in the cavity and connected with the rotating shaft (230), so that the driving mechanism (600) can drive the rotating shaft (230) to rotate the steam rolling brush (200). 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 support (100) comprises: a first frame body (110); a second frame body (120), the first frame body (110) and the second frame body (120) are detachably connected and enclose the cavity, and the first frame body (110) and / or the second frame body (120) are provided with a partition, which divides the cavity into the first cavity (102) and the second cavity (101); a support sealing ring (130) is clamped between the first frame body (110) and the second frame body (120) and is arranged around the periphery of the second cavity (101); The support (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).

8. The steam-cleanable surface cleaning device of claim 7, wherein, The cleaning piece further comprises: a protective cover (520) connected with the support (100), the protective cover (520) and the support (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 support (100); The support (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 support (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 on the inner side of the second annular flange (113), at least part of the driving assembly (610) is located in the first annular flange (112), and the first annular flange (112) and the second annular flange (113) enclose the positioning groove.

9. The steam-cleanable surface cleaning device of claim 7, wherein, The driving mechanism (600) further comprises a clutch assembly (630), the clutch assembly (630) is arranged in the cavity, the clutch assembly (630) comprises a first rotating piece (631) and a second rotating piece (632), one of the first rotating piece (631) and the second rotating piece (632) is connected with the output shaft of the driving assembly (610), and the other is connected with the transmission assembly (620); The first rotating piece (631) and the second rotating piece (632) can be in driving cooperation when the transmitted torque is less than a preset value and can be out of driving cooperation when the transmitted torque is greater than or equal to the preset value. The first rotating member (631) comprises a first elastic coupling part (6312), and the second rotating member (632) comprises a coupling surface abutting against the first coupling part (6312), wherein at least two tooth grooves (6322) are arranged on the coupling surface, the at least two tooth grooves (6322) are arranged along the circumference of the second rotating member (632), and a tooth part (6321) is formed between adjacent two tooth grooves (6322), and the first coupling part (6312) can be deformed and pass through the tooth part (6321); The first rotating member (631) further comprises a rotating body (6311), and the first coupling part (6312) is formed by extending from the circumferential edge of the rotating body (6311); A plurality of first coupling parts (6312) are arranged along the circumference of the rotating body (6311) and are spaced apart, the first coupling parts (6312) extend along the circumference of the rotating body (6311), and the end portions of adjacent two first coupling parts (6312) are connected or spaced apart; And / or, along the axial direction of the first rotating member (631), the first coupling part (6312) is arranged in a direction close to the coupling surface by the rotating body (6311); And / or, along the axial direction of the first rotating member (631), the end portion of the first coupling part (6312) is bent in a direction away from the coupling surface to form an abutting end (63123); The number of the tooth grooves (6322) is an integer multiple of the number of the first coupling parts (6312); Along the rotation direction of the first rotating member (631), the tooth groove (6322) comprises a first groove wall (63221) and a second groove wall (63222) connected together, 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); The initial deformation amount of the first coupling part (6312) when abutting against the coupling surface is 0.5-1mm; The coupling surface is an axial end surface of the second rotating member (632); or the axial end surface of the second rotating member (632) is concave to form a coupling groove, and the coupling surface is the circumferential inner wall of the coupling groove; Along the abutting direction of the first coupling part (6312) and the coupling surface, the projection of the end of the first coupling part (6312) abutting against the coupling surface can be located in the tooth groove (6322); The clutch assembly (630) further comprises a pre-pressing member (633), which is arranged on the side of the first rotating member (631) away from the second rotating member (632), and abuts against the first rotating member (631) along the axial direction of the first rotating member (631) to deform the first coupling part (6312).

10. The steam-cleanable surface cleaning device of claim 7, wherein, The cleaning member further comprises: A fixing base is connected with the support (100) and is arranged in axial symmetry relative to the support (100), and the driving assembly (610) and the rotating shaft (230) are respectively located on opposite sides of the fixing base; A floor brush cover (300) is sleeved on the support (100) and is detachably connected with the fixing base, the steam 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 member further comprises a lamp assembly (700), the lamp assembly (700) is connected with the fixing base, and the lamp assembly (700) is used for emitting light towards the cleaning front side of the steam rolling brush (200); The front side of the fixing base is provided with a lamp groove, 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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