A hot cleaning surface cleaning device

Abstract

The application discloses a surface cleaning device with heat cleaning, which comprises a floor brush with a shell, a cleaning element arranged on the shell, and a heating device for heating the cleaning element. The shell extends forward above the cleaning element to form an extension part. An opening is arranged at the lower end of the extension part. An installation support for fixing the heating device is arranged on the extension part. A cantilever support is fixedly connected with both ends of the installation support. The cantilever support is used to float the heating device on the opening, so that the heating device has a heat dissipation gap with the extension part. The lower surface of the heating device is at least partially protruded from the opening. The heating device has a first position in which the at least partially lower surface is in contact with the outer periphery of the cleaning element, and a second position in which the heating device is separated from the cleaning element. The heating device can adapt to different working states of the cleaning element. After the dirt is peeled off, the heating device is switched to the first position to heat the cleaning element, which helps to reduce the cleaning and maintenance pressure on the surface cleaning device.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and specifically relates to a thermal cleaning surface cleaning device. Background Technology

[0002] With the continuous development of cleaning technology, surface cleaning devices such as sweepers, floor scrubbers, robotic vacuum cleaners, and handheld floor scrubbers have been widely used in homes, commercial spaces, and other settings, becoming important tools for improving cleaning efficiency. The core working component of these devices is the floor brush, which typically includes a housing, cleaning components (such as roller brushes or bristle brushes), and a dispensing component. The dispensing component delivers cleaning fluid to the cleaning components or the surface to be cleaned. The cleaning components, through rotation, generate friction with the surface to be cleaned, thus removing stains.

[0003] To further enhance cleaning effectiveness, especially for stubborn stains such as oil and grease, some existing surface cleaning brushes incorporate heating devices. These heating devices come into contact with the cleaning surface and transfer heat through conduction, raising the surface's temperature and consequently increasing the temperature of the cleaning solution adhering to the surface. The heated cleaning solution more effectively breaks down grease and grease, significantly enhancing the cleaning brush's ability to clean surfaces. Therefore, heating functionality is increasingly becoming an important feature in mid-to-high-end surface cleaning devices. Patent application number 202210906878.6 discloses a roller brush cleaning mechanism and cleaning device, including a rotating body (3), a heating part and a floating support structure. The floating support structure is connected to the heating part, and the heating part is in contact with the outer periphery of the cleaning part of the rotating body (3). The floating support structure allows the heating part to float and adhere to the outer periphery. The floating support structure includes a second elastic member (39) and a floating support part. The floating support part is connected to the heating part. The floating support part is used to support the heating part to float. The second elastic member (39) is used to provide elastic force for the heating part to float and adhere to the outer periphery.

[0004] The above structure has the following drawbacks: To prevent dirt or sewage from entering the heating unit, a sealing structure is installed between the floating support and the heating unit. If the seal is too tight, it will affect the heat dissipation of the heating unit, causing the shell at the installation location of the heating unit to deform due to heat. This is especially true in the later stages of the self-cleaning and drying phase of the cleaning device, when the tufts on the outer surface of the cleaning component are already relatively dry or semi-dry, with a significantly reduced moisture content. This significantly reduces the component's ability to absorb heat, making it difficult for the heating device to absorb the heat generated. Consequently, the heating device itself experiences a rapid temperature increase. This rapidly increasing heat is quickly conducted to the shell through the heating unit and its floating support. Furthermore, there is only a second elastic element between the heating unit and the shell, and the adjustment gap of this element is only a small gap to ensure effective contact between the heating unit and the rotating cylinder. Therefore, the heat dissipation space between the heating unit and the shell is insufficient. The limited air inside is heated by the rapidly heating device, failing to provide effective insulation. The heating device rapidly radiates its own heat to the shell, causing the shell to deform due to localized overheating, potentially shortening its lifespan, and in severe cases, directly damaging the floor brush. Utility Model Content

[0005] This application provides a thermal cleaning surface cleaning device to solve the technical problem in traditional surface cleaning devices where the heating device is too close to the housing, resulting in insufficient heat dissipation space in the area where the heating device is located, which in turn causes the housing where the heating device is installed to deform due to the accumulated high temperature.

[0006] The technical solution adopted in this application is as follows:

[0007] A thermal surface cleaning device includes a floor brush with a housing, a cleaning component disposed in the housing, and a heating device for heating the cleaning component. The housing extends forward above the cleaning component to form an extension. An opening is provided at the lower end of the extension. The extension is provided with a mounting bracket for fixing the heating device therein and a cantilever bracket fixedly connected to both ends of the mounting bracket. The cantilever bracket floats the heating device in the opening so that there is a heat dissipation gap between the heating device and the extension. At least a portion of the lower surface of the heating device protrudes from the opening, and the heating device has a first position where at least a portion of its lower surface is in contact with the outer periphery of the cleaning component and a second position where it is separated from the cleaning component.

[0008] The surface cleaning device described in this application also includes the following additional technical features:

[0009] The mounting bracket also includes an inner bracket fixedly connected to the cantilever bracket. The inner bracket has a mounting through hole extending along the length of the cleaning component. The heating device is disposed in the mounting through hole, and a portion of the heating device protrudes downward through the mounting through hole onto the lower surface of the inner bracket.

[0010] The mounting bracket also includes an outer bracket and a flexible sealing element connecting the inner bracket and the outer bracket, and there is a floating gap between the inner bracket and the outer bracket. The extension is provided with a mounting cavity, the outer bracket is fixed to the mounting cavity and fits against its inner wall, the cantilever bracket and at least part of the heating device are located in the mounting cavity, and there is a heat dissipation gap between the heating device and the inner wall of the mounting cavity.

[0011] The heating device is in a first position, and the heat dissipation gap includes a first gap between the heating device and the top wall of the mounting cavity and a second gap between the heating device and the side wall of the mounting cavity.

[0012] The cantilever bracket includes a suspension portion located at its top, and the extension portion is provided with a mating portion that aligns with the suspension portion. The suspension portion moves vertically relative to the mating portion, and the heating device switches between a first position and a second position.

[0013] An elastic reset member is provided between the cantilever bracket and the extension. The elastic reset member drives the cantilever bracket and the heating device to reset from the second position to the first position. The surface cleaning device also includes a drive component that abuts against the heating device, so that the cantilever bracket follows the heating device to switch from the first position to the second position.

[0014] It also includes a power component and a drive component disposed on the housing. One end of the drive component is connected to the heating device through a movable connection structure. The power component drives the drive component to move, thereby driving the heating device to move, so that the cantilever bracket drives the heating device to float up and down relative to the housing.

[0015] The driving component is a driving linkage, and the other end of the driving linkage is movably connected to the output end of the power component. The upper end of the heating device is provided with a lifting component. The movable connection structure includes a pin. The outer side of the other end of the driving linkage is provided with a notch. The upper end of the lifting component extends upward into the notch. The pin passes through the lifting component and the through hole on the notch. The upper end of the lifting component has a movable gap with at least the notch, so that the driving linkage drives the heating device to move up and down.

[0016] The cantilever bracket has a first guide portion at both ends, and the housing has a second guide portion adapted to the first guide portion. The first guide portion and the second guide portion cooperate to guide the cantilever bracket to move in the vertical direction, so as to drive the heating device to switch between the first position and the second position.

[0017] The heating device extends along the width of the cleaning component, and there are two cantilever brackets, which are respectively arranged on both sides of the heating device.

[0018] The technical solution of this application has the following technical effects:

[0019] In the surface cleaning device of this application, a cantilever bracket is provided, and the heating device is floatingly mounted on the extension of the housing via the cantilever bracket and the mounting bracket. The two ends of the cantilever bracket are connected to the mounting bracket but do not contact the heating device, resulting in a large heat dissipation gap between the heating device and the extension. Firstly, the cantilever bracket acts as a barrier between the heating device and the housing, and since the cantilever bracket does not contact the heating device, the longitudinal distance between the heating device and the extension is increased. Secondly, only the two ends of the cantilever bracket are connected to the mounting bracket used to mount the heating device, which greatly increases the lateral space between the heating device and the extension. The cantilever bracket suspends the mounting bracket on the extension, allowing the heating device to float at the opening, providing more heat dissipation space between the heating device and the housing. The large heat dissipation gap between the heating device and the housing, with the air inside providing good insulation, reduces the impact of the heat generated by the heating device on the housing, lowers the probability of thermal deformation of the housing, and ensures the stability and safety of the housing, thus making the installation of the heating device more stable and reliable. Furthermore, the heating device is installed within a mounting bracket, which further increases the space between the heating device and the extension, thus increasing the heat dissipation space within the limited installation space inside the floor brush. When the heating device is in the first position, the heat dissipation gap is large, providing ample space for heat dissipation during high-temperature heating. When the heating device switches to the second position, it stops working, and the second elastic element mentioned in the prior art is compressed, further reducing the gap between the heating device and the housing. The smaller gap cannot immediately dissipate the residual heat of the heating device. However, due to the presence of the cantilever bracket in this application, the heating device in the second position is located at most at the bottom of the cantilever bracket. In this way, even when the heating device is in the second position, there is still a certain space between it and the extension to form a heat dissipation gap, providing space for the residual heat of the heating device to dissipate, reducing the probability that the residual heat of the heating device in the second position will adversely affect the extension, and ensuring the service life of the extension. Furthermore, the use of cantilever brackets to suspend the heating device allows it to maintain better contact with the cleaning components when in its initial position. When the heating device floats relative to the cleaning components due to collisions, bumps, or hard dirt adhering to the cleaning components, the cantilever bracket installation method can reduce the kinetic energy impact on the heating device, ensuring its installation stability.

[0020] Furthermore, the cantilever bracket is floatingly connected to the housing, and the cantilever bracket does not contact the heating device. This means that the residual heat from the heating device has already dissipated by the time it reaches the cantilever bracket. The contact surface between the cantilever bracket and the extension is a single point, minimizing the heat transferred directly upwards from the heating device to the housing through the mounting bracket and cantilever bracket. Additionally, the space created by the cantilever bracket provides a large heat dissipation gap. Moreover, the heating device is floatingly positioned at the opening via the cantilever bracket. Therefore, this structure effectively ensures that the heating device can effectively adhere to the cleaning component during cleaning. This ensures that when the heating device is in the initial contact position with the cleaning component, it can effectively transfer heat to the cleaning component to raise the temperature of the cleaning fluid on the component and its bristles, preventing issues like poor contact affecting the heating device's own temperature rise. Simultaneously, the floating installation of the cantilever bracket ensures a tight fit between the heating device and the cleaning component. Even when the surface area of ​​the cleaning component changes due to thick dirt adhesion, or when the cleaning component shakes due to bumps or collisions, the heating device maintains a stable contact, achieving stable heating of the cleaning component. Furthermore, the heating device has a first position that is in contact with the outer periphery of the cleaning part and a second position that is separate. The heating device can switch between the first and second positions to adapt to different working states of the cleaning part. For example, when there is too much dirt adhering to the outer surface of the cleaning part, the dirt may move to the heating device as the cleaning part rotates, and there is a probability that it will adhere to the heating device. At this time, the heating device can be moved to the second position. After the dirt is peeled off, the heating device can be switched back to the first position to heat the cleaning part, which helps to reduce the cleaning and maintenance pressure on the surface cleaning device. When the surface cleaning device is self-cleaning, it is usually necessary to first inject cleaning fluid into the cleaning part, and the cleaning part alternately rotates forward and reverse to clean the dirt. At this time, the heating device can be switched to the second position to facilitate the cleaning of dirt adhering to the heating device and dirt hidden between the heating device and the cleaning part. After the cleaning part and the heating device are cleaned, the heating device can be switched back to the first position to heat the cleaning part, realizing rapid drying of the cleaning part, thus improving the ease of use of the surface cleaning device in many ways. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a side view of the surface cleaning device in Embodiment 1 of this application;

[0023] Figure 2 This is a cross-sectional view of a portion of the surface cleaning device in Embodiment 1 of this application. Figure 1 ;

[0024] Figure 3 for Figure 2 Enlarged view of part A;

[0025] Figure 4 This is a cross-sectional view of a portion of the surface cleaning device in Embodiment 1 of this application. Figure 2 ;

[0026] Figure 5 for Figure 4 Enlarged view of part B;

[0027] Figure 6 This is a schematic diagram of the internal support structure in Embodiment 1 of this application;

[0028] Figure 7 This is a cross-sectional view of a portion of the surface cleaning device structure in Embodiments 1 and 2 of this application. Figure 3 ;

[0029] Figure 8 for Figure 7 Enlarged view of part C;

[0030] Figure 9 These are schematic diagrams of the surface cleaning device in Embodiments 1 and 2 of this application.

[0031] Figure 10 for Figure 9 Enlarged view of part D;

[0032] Figure 11 This is a cross-sectional view of a portion of the surface cleaning device in Example 3;

[0033] Figure 12 This is a cross-sectional view of a portion of the surface cleaning device structure in Example 4.

[0034] List of components and reference numerals:

[0035] 1 floor brush, 11 cleaning components, 111 rear roller, 12 suction ports;

[0036] 2. Housing, 21. Upper housing, 211. Vertical plate, 212. Bending part, 22. Lower housing, 23. Mating part, 24. Extension part, 241. Moving slide groove;

[0037] 3. Heating device;

[0038] 4. Cantilever bracket, 41. Suspension part, 411. Suspension section, 412. Main body section, 42. Cantilever body, 43. First connecting part, 44. Cantilever boss.

[0039] 5. Heat dissipation gap, 51. First gap, 52. Second gap;

[0040] 6 inner brackets, 61 mounting through holes;

[0041] 7. External support;

[0042] 8. Flexible seals;

[0043] 9. Floating gap;

[0044] 10 mounting cavities;

[0045] 110 elastic reset component;

[0046] 120 power components, 1201 output gear;

[0047] 130 drive component, 1301 rotating part, 1302 first end, 1303 second end, 1304 connecting protrusion, 1305 limiting groove;

[0048] 140 lifting parts;

[0049] 150 pin;

[0050] 160 guide bump;

[0051] 170 guide groove;

[0052] 180mm fuselage;

[0053] 190 water tank, 1901 first zone, 1902 second zone;

[0054] 200 Stain Scraper Assembly;

[0055] 210 Rotating component, 2101 Mating gear;

[0056] 220 thermal insulation;

[0057] 230 mounting bracket;

[0058] 240 displacement clearance. Detailed Implementation

[0059] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0060] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0061] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a communication 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 application according to the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0064] Example 1:

[0065] like Figures 1 to 4 As shown, a thermal cleaning surface cleaning device includes a floor brush 1, which includes a housing 2 and a cleaning component 11 disposed on the housing 2. The floor brush 1 also includes a heating device 3 located above the cleaning component 11 for heating the cleaning component 11. The housing 2 extends forward above the cleaning component 11 to form an extension 24. An opening is provided at the lower end of the extension 24. The extension 24 is provided with a mounting bracket 230 for fixing the heating device 3 therein and a cantilever bracket 4 fixedly connected to both ends of the mounting bracket 230. The cantilever bracket 4 floats the heating device 3 at the opening so that the heating device 3 and the extension 24 have a heat dissipation gap 5. The lower surface of the heating device 3 protrudes at least partially from the opening, and the heating device 3 has a first position where at least part of its lower surface is in contact with the outer periphery of the cleaning component 11 and a second position where it is separated from the cleaning component 11.

[0066] Specifically, the surface cleaning device also includes a body 180 pivotally connected to the floor brush 1, a dispensing component for wetting the cleaning element 11, and a scraping assembly 200 for scraping the cleaning element 11. The body 180 can rotate relative to the floor brush 1 to accommodate different operator postures. A handle is provided on the top of the body 180. When cleaning the floor, the angle between the body 180 and the floor brush 1 is close to 90° for user support. When the surface to be cleaned is under a table, the user can hold the handle to rotate the body 180 towards the rear of the floor brush 1, lowering the vertical height of the body 180 so that the cleaning element 11 can enter the bottom of the table. The scraping assembly 200 can be constructed as a comb-tooth scraper, a strip scraper, or a combination of comb teeth and stripes. The dispensing component has multiple dispensing ports along the extension direction of the cleaning element 11, from which cleaning liquid flows out to evenly wet the cleaning element 11 or the surface to be cleaned. The floor brush 1's housing 2 includes an upper housing 21 and a lower housing 22. The lower housing 22 has an opening at its upper end, and the upper housing 21 covers the upper port of the lower housing 22. The lower housing 22 contains a water pump and a power component 120 that drives the cleaning component 11 to rotate. In this embodiment, the power component 120 is a motor. A suction port 12 is located in the central area of ​​the lower housing 22. A suction hose is located inside the lower housing 22. One end of the suction hose is connected to and communicates with the suction port 12, and the other end of the suction hose passes rearward through the hinge between the lower housing 22 and the body 180, extending upward into the body 180 and communicating with the suction pipe inside the wastewater collection tank. The wastewater collection tank is detachably connected to the body 180 and is used to temporarily store wastewater collected during the cleaning process.

[0067] The water tank 190 in the water supply system includes a main body, an extension 24 extending forward and upward from the front end of the main body to above the cleaning component 11, and a water tank cover. The water tank cover covers the main body and the extension 24 and forms an integral structure with them. The cleaning component 11 is located in front of the suction port 12, and the extension 24 is located above the cleaning component 11. The extension 24 has a mounting cavity 10 located above the cleaning component 11. The opening at the lower end of the extension 24 is the opening of the mounting cavity 10. The heating device 3 is located in the opening of the mounting cavity 10, such that the lower surface of the heating device 3 protrudes at least from the lower surface of the extension 24. The lower housing 22 has a frame-shaped mounting groove on its front side. The suction port 12 is located in the central area of ​​the lower housing 22 and below the frame-shaped mounting groove. The liquid distribution component and the scraping component 200 are sequentially arranged in the frame-shaped mounting groove. The lower wall of the frame-shaped mounting groove forms part of the top wall of the suction port 12. The upper housing 21 extends forward beyond the upper port of the lower housing 22 to form the extension 24 of the water tank 190. The upper housing 21 has a vertical plate 211 and a bent portion 212 extending downwards in the vertical direction on the front side of its upper port. The vertical plate 211 and the bent portion 212 are spaced apart and cooperate with the extension 24 to form a downward-facing mounting cavity 10. The cantilever bracket 4 is mounted on the extension 24. Part of the cantilever bracket 4 and the heating device 3 are located inside the mounting cavity 10. The top wall and side wall of the mounting cavity 10 are the bottom wall of the extension 24 and the inner wall of the vertical plate 211 and the bent portion 212, respectively. The heat dissipation gap 5 between the heating device 3 and the housing 2 refers to the gap between the heating device 3 and the bottom wall of the extension 24, and between the vertical plate 211 and the inner wall of the bent portion 212. The heating device 3 includes a heating element and a heat-conducting element. In this embodiment, the heating element is a PTC heater, and the heat-conducting element is a flat aluminum tube. The PTC heater is located inside the flat aluminum tube.

[0068] The water tank 190 includes a first region 1901 located at the top of the mounting cavity 10 and a second region 1902 located at the front side of the mounting cavity 10. The portion of the bottom wall of the water tank 190 corresponding to the second region 1902 is flush with the upper surface of the cleaning component 11, and the portion of the bottom wall of the water tank 190 corresponding to the first region 1901 is flush with the upper surface of the mounting cavity 10. Since the mounting cavity 10 is located above the cleaning component 11, the bottom of the second region 1902 is lower than the bottom of the first region 1901. The bottom wall of the water tank 190 extends vertically at the connection between the first region 1901 and the second region 1902.

[0069] In this embodiment, the cleaning component 11 is as follows: Figure 2 , Figure 4 The tracked cleaning component 11 shown includes a front roller, a rear roller 111, and a cleaning cloth sleeved on the front roller and the rear roller 111. The outer surface of the cleaning cloth has tufts. This embodiment uses the tracked cleaning component 11 as an example for explanation. The mounting cavity 10 is located above the rear roller 111 of the tracked cleaning component 11, and the heating device 3 is attached to the top of the rear roller 111 of the cleaning component 11.

[0070] In the surface cleaning device of this application, a cantilever bracket 4 is provided, and the heating device 3 is floatingly mounted on the extension 24 of the housing 2 via the cantilever bracket 4 and the mounting bracket 230. The two ends of the cantilever bracket 4 are connected to the mounting bracket 230 but do not contact the heating device 3, resulting in a large heat dissipation gap between the heating device 3 and the extension 24. Firstly, the heating device 3 is blocked from the housing 2 by the cantilever bracket 4, and the cantilever bracket 4 does not contact the heating device 3, thus increasing the longitudinal distance between the heating device 3 and the extension 24. Only the two ends of the cantilever bracket 4 are connected to the mounting bracket 230 for mounting the heating device 3. The connection significantly increases the lateral space between the heating device 3 and the extension 24. The cantilever bracket 4 suspends the mounting bracket 230 on the extension 24, allowing the heating device 3 to float above the opening. This provides more heat dissipation space between the heating device 3 and the housing 2. The large heat dissipation gap 5 between the heating device 3 and the housing 2, with its air providing excellent insulation, reduces the impact of heat generated by the heating device 3 on the housing 2, lowers the probability of thermal deformation of the housing 2, and ensures the stability and safety of the housing 2. This makes the installation of the heating device 3 more stable and reliable. Furthermore, the installation of the heating device 3 within the mounting bracket 230 further increases the space between the heating device 3 and the extension 24, thus increasing the heat dissipation space of the heat dissipation gap 5 within the limited installation space inside the floor brush 1. When the heating device 3 is in the first position, the heat dissipation gap 5 is relatively large, providing sufficient heat dissipation space for the heating device 3 in a high-temperature heating state. When the heating device 3 switches to the second position, it stops working. The second elastic element mentioned in the prior art is compressed, further reducing the gap between the heating device and the shell. The smaller gap cannot immediately dissipate its residual heat. However, in this application, due to the cantilever bracket 4, the displacement of the heating device 3 is restricted, so that the heating device 3 in the second position is at most located at the bottom end of the cantilever bracket 4. In this way, even when the heating device 3 is in the second position, there is still a certain space between it and the extension 24 to form a heat dissipation gap 5, providing space for the residual heat of the heating device 3 to dissipate, reducing the probability that the residual heat of the heating device 3 in the second position will adversely affect the extension 24, and ensuring the service life of the extension 24. Furthermore, the heating device 3 is installed by using a cantilever bracket 4 to suspend the mounting bracket 230. This allows the heating device 3 to maintain better contact with the cleaning component 11 when it is in the first position. When the heating device 3 floats relative to the cleaning component 11 due to collisions, bumps, or hard dirt adhering to the cleaning component 11 with the floor brush 1, the installation method of the cantilever bracket 4 and the mounting bracket 230 can reduce the kinetic energy impact on the heating device 3, thus ensuring the installation stability of the heating device 3.

[0071] Furthermore, the cantilever bracket 4 is floatingly connected to the housing 2, and the cantilever bracket 4 does not contact the heating device 3. This means that the residual heat of the heating device 3 has already dissipated by the time it reaches the cantilever bracket 4. Also, the contact surface between the cantilever bracket 4 and the extension 24 is a single point contact, resulting in very little heat being transferred directly upwards from the heating device 3 to the housing 2 through the mounting bracket 230 and the cantilever bracket 4. Additionally, the existence of a large heat dissipation gap formed by the space where the cantilever bracket 4 is located, and the fact that the heating device 3 is floatingly positioned at the opening via the cantilever bracket 4, effectively ensures that the heating device 3 can effectively adhere to the cleaning component 11 during cleaning operations, thereby effectively guaranteeing... When cleaning the surface to be cleaned, the heating device 3, when in the first position of being in contact with the cleaning part 11, can effectively transfer heat to the cleaning part 11 to increase the temperature of the cleaning liquid on the cleaning part 11 and its bristles, without the problem of poor contact affecting the temperature rise of the heating device 3 itself; at the same time, the floating installation of the cantilever bracket 4 can ensure that the heating device 3 and the cleaning part 11 are in close contact. When the surface area of ​​the cleaning part 11 changes due to the adhesion of thick dirt, or when the cleaning part 11 shakes due to bumps or collisions, the heating device 3 can maintain a stable contact with the cleaning part 11, thus achieving stable heating of the cleaning part 11. In addition, the heating device 3 has a first position that is in contact with the outer periphery of the cleaning component 11 and a second position that is separate. The heating device 3 can switch between the first and second positions to adapt to different working states of the cleaning component 11. For example, when too much dirt adheres to the outer surface of the cleaning component 11, the dirt will move to the heating device 3 as the cleaning component 11 rotates, and there is a probability that it will adhere to the heating device 3. At this time, the heating device 3 can be moved to the second position. After the dirt is peeled off, the heating device 3 can be switched back to the first position to heat the cleaning component 11, which helps to reduce the cleaning and maintenance pressure on the surface cleaning device. When performing self-cleaning of the surface cleaning device, it is usually necessary to first inject cleaning fluid into the cleaning component 11. The cleaning component 11 rotates alternately in both forward and reverse directions to clean the dirt. At this time, the heating device 3 can be switched to the second position to facilitate the cleaning of dirt adhering to the heating device 3 and dirt hidden between the heating device 3 and the cleaning component 11. After the cleaning component 11 and the heating device 3 have finished cleaning, the heating device 3 can be switched back to the first position and heat the cleaning component 11 to achieve rapid drying of the cleaning component 11, thereby improving the ease of use of the surface cleaning device in many ways.

[0072] As a preferred embodiment of this example, Figure 6 As shown, the mounting bracket 230 also includes an inner bracket 6 fixedly connected to the cantilever bracket 4. The inner bracket 6 has a mounting through hole 61 extending along the length direction of the cleaning component 11. The heating device 3 is disposed in the mounting through hole 61, and a portion of the heating device 3 protrudes downward through the mounting through hole 61 onto the lower surface of the inner bracket 6.

[0073] Specifically, the heating device 3 has an overall elongated block structure that extends along the length of the cleaning component 11. The inner support 6 is constructed as a frame structure adapted to the shape of the heating device 3, with the mounting through hole 61 located in the middle of the inner support 6. The inner support 6 is sleeved on the outside of the heating device 3, and a heat insulation component 220 is provided between the inner support 6 and the heating device 3. The outer surface of the heat insulation component 220 is adapted to the side shape of the heating device 3, and the heating device 3 is in contact with the heat insulation component 220, which is also in contact with the inner support 6. The inner side of the heat insulation component 220 has an outwardly extending overlapping platform. The heating device 3 includes a body and an overlapping protrusion located on the top of the body. The overlapping protrusion overlaps with the overlapping platform. Part of the body is located inside the mounting through hole 61, and part of it protrudes downward. The lower surface of the body is lower than the lower surface of the inner support 6. Furthermore, the cantilever bracket 4 has two spaced-apart first connecting ends, and the two sides of the inner support 6 have connecting bosses at the corresponding first connecting ends. The first connecting ends are connected to the connecting bosses by bolts.

[0074] The inner bracket 6 of the floor brush 1 is fixedly connected to the cantilever bracket 4, and the inner bracket 6 is provided with a mounting through hole 61 extending along the length of the cleaning component 11. The heating device 3 passes through the mounting through hole 61 and protrudes downward from the lower surface of the inner bracket 6. This structure has significant advantages in actual use: the mounting through hole 61 provides precise positioning and guidance for the heating device 3. On the one hand, during assembly, the heating device 3 can be installed simply by embedding it into the inner bracket 6, reducing the difficulty of assembling the heating device 3 with the inner bracket 6. On the other hand, the setting of the mounting through hole 61 ensures that the heating device 3 always maintains a stable posture along the length of the cleaning component 11 during floating, reducing the probability of misalignment with the cleaning component 11 due to shaking. Especially when the cleaning component 11 rotates at high speed, it can ensure the uniformity of the contact between the heating device 3 and the outer periphery of the cleaning component 11, improving the stability of heat transfer. Meanwhile, the design of the heating device 3 protruding from the lower surface of the inner support 6 ensures that the inner support 6 does not block the contact area between the heating device 3 and the cleaning component 11, thus ensuring that the heat acts directly on the cleaning component 11 and reducing heat loss during the transfer process.

[0075] As a preferred example of this implementation, such as Figure 3 , Figure 5 As shown, the mounting bracket 230 also includes an outer bracket 7 and a flexible sealing element 8 connecting the inner bracket 6 and the outer bracket 7, and there is a floating gap 9 between the inner bracket 6 and the outer bracket 7. The extension 24 is provided with a mounting cavity 10. The outer bracket 7 is fixed to the mounting cavity 10 and fits against its inner wall. At least a portion of the cantilever bracket 4 and the heating device 3 are located in the mounting cavity 10. The heating device 3 and the inner wall of the mounting cavity 10 have a heat dissipation gap 5.

[0076] Two outer supports 7 are distributed on both sides of the inner support 6. The two outer supports 7 are connected to the vertical plate 211 and the bending part 212, respectively. Flexible seals 8 are fixedly connected to the inner support 6 and the outer supports 7 by rubber coating. The flexible seals 8 are made of heat-resistant rubber. The flexible seals 8 are configured such that when the heating device 3 and the inner support 6 are located in the middle of the two outer supports 7, the flexible seals 8 bend and have a certain deformation margin. When the heating device 3 floats upward, the flexible seals 8 deform and stretch accordingly to adapt to the movement of the inner support 6. When the heating device 3 floats horizontally, the front flexible seal 8 is compressed and the floating gap 9 decreases along the floating direction of the heating device 3, while the rear flexible seal 8 is stretched and the floating gap 9 increases. The outer support 7 includes a convex ring extending vertically. The convex ring abuts against the inner wall of the vertical plate 211, and the top of the convex ring abuts against the bottom wall of the extension part 24.

[0077] In this example, the flexible seal 8 connects the inner bracket 6 and the outer bracket 7 into a whole. Since the mounting cavity 10 is formed by the bending part 212, the vertical plate 211, and the extension part 24 and the opening is downward, and the outer bracket 7 is connected to the bending part 212 and the vertical plate 211 respectively, the outer bracket 7, the flexible seal 8, the inner bracket 6, the heat insulation part 220 and the lower surface of the heating device 3 together seal the opening of the mounting cavity 10, making the mounting cavity 10 a sealed chamber, reducing the probability that sewage on the cleaning part 11 is thrown into the mounting cavity 10.

[0078] Furthermore, the tight fit between the outer bracket 7 and the inner wall of the mounting cavity 10 provides a stable foundation for the entire bracket system. The flexible seal 8 effectively seals the gap between the inner bracket 6 and the outer bracket 7. During the floating process of the heating device 3, the flexible seal 8 can adapt to the movement of the inner bracket 6, ensuring a good seal without hindering the floating of the inner bracket 6. This significantly reduces the possibility of dirt entering the core area of ​​the mounting cavity 10 through the gap between the inner bracket 6 and the outer bracket 7, especially in scenarios with a lot of hair, effectively preventing hair from getting tangled at the connection between the heating device 3 and the bracket. Simultaneously, the floating gap 9 ensures that the inner bracket 6 can flexibly switch positions with the heating device 3 without losing its floating ability due to the sealing structure. During the self-cleaning and drying stage, when the heating device 3 needs heat dissipation, the heat dissipation gap 5 between the heating device 3 and the inner wall of the mounting cavity 10 achieves good heat dissipation, preventing heat accumulation.

[0079] As a preferred method in this example, such as Figure 3 , Figure 5 , Figure 8 As shown, the heating device 3 is in the first position, and the heat dissipation gap 5 includes a first gap 51 located between the heating device 3 and the top wall of the mounting cavity 10 and a second gap 52 located between the heating device 3 and the side wall of the mounting cavity 10.

[0080] Since the cantilever bracket 4 is located above the heating device 3, regardless of whether the heating device 3 is in the first or second position, the first gap 51 between the heating device 3 and the top wall of the mounting cavity 10 is at least not less than the height of the cantilever bracket 4. The second gap 52 is the gap between the heating device 3 and the bending part 212 and the vertical plate 211 respectively. Since the convex ring of the outer bracket 7 abuts against the bending part 212 and the vertical plate 211, and the heating device 3 is installed in the mounting through hole 61 of the inner bracket 6, regardless of how the heating device 3 floats in the horizontal direction, the length of the second gap 52 is at least the sum of the thickness of the convex ring and the side of the inner bracket 6.

[0081] The first gap 51 and the second gap 52 function effectively in all stages of the surface cleaning device's operation. When cleaning the surface, the first gap 51 and the second gap 52 together form a multi-directional heat dissipation channel. Excess heat generated by the heating device 3 can be quickly dissipated through the top and sides, preventing excessive heat concentration in the contact area between the heating device 3 and the cleaning component 11. This prevents the cleaning fluid from evaporating rapidly due to localized overheating, ensuring sufficient time for the cleaning fluid to dissolve stains. Later in the self-cleaning and drying process, when the heating device 3 switches to the second position, the gaps in both directions accelerate heat diffusion to the outside of the mounting cavity 10. Compared to a single-directional gap, the heat dissipation efficiency is significantly improved, allowing the temperature of the heating device 3 to drop to a safe range in a short time, effectively protecting the housing 2 and surrounding components from high temperatures.

[0082] As a preferred embodiment of this example, Figure 7 , Figure 8 As shown, the cantilever bracket 4 includes a suspension part 41 located at its top, and the extension part 24 is provided with a mating part 23 that aligns with the suspension part 41. The suspension part 41 moves vertically relative to the mating part 23, and the heating device 3 switches between a first position and a second position.

[0083] Specifically, the cantilever bracket 4 includes a cantilever body 42 extending horizontally, two first connecting parts 43 located on both sides of the cantilever body 42, an upwardly protruding cantilever boss 44 in the middle of the cantilever body 42, a threaded hole in the cantilever boss 44, a suspension part 41 constructed as a bolt threadedly connected to the cantilever boss 44, the bolt having a flange at its top, an extension part 24 having an upwardly protruding part above the cantilever boss 44, the bottom of the protruding part having an overlapping ring edge, the top of the bolt being located inside the protruding part and the flange overlapping with the overlapping ring edge. The top of the bolt can move up and down within the protruding part to accommodate the up and down movement of the heating device 3 and the inner bracket 6.

[0084] The suspension part 41 of the cantilever bracket 4 and the mating part 23 of the housing 2 move vertically. This vertical movement trajectory has significant advantages in actual use: when the cleaning component 11 experiences uneven wear on its outer periphery due to long-term use, the heating device 3 can adjust its height in real time through vertical floating, always maintaining a close fit with the highest point of the cleaning component 11, ensuring that heat transfer is not affected by the wear of the cleaning component 11. When the cleaning device crosses areas with height differences such as thresholds and carpet edges, the cleaning component 11 will sway up and down with the undulations of the ground. At this time, the vertically moving suspension part 41 can quickly respond to the positional changes of the cleaning component 11, avoiding rigid collisions between the heating device 3 and the cleaning component 11, and protecting the structural integrity of both. During the self-cleaning stage, the heating device 3 rises vertically to the second position, forming a regular vertical gap with the cleaning component 11, which facilitates the cleaning fluid to flush the area under pressure, thus more thoroughly removing hidden dirt.

[0085] Preferably, such as Figure 3 , Figure 5 As shown, an elastic reset member 110 is provided between the cantilever bracket 4 and the extension 24. The elastic reset member 110 drives the cantilever bracket 4 and the heating device 3 to reset from the second position to the first position. The surface cleaning device also includes a drive component that abuts against the heating device 3 so that the cantilever bracket 4 follows the heating device 3 to switch from the first position to the second position.

[0086] The elastic reset component 110 is constructed as a spring. Multiple positioning ribs extending vertically are provided at intervals on the outer periphery of the cantilever boss 44. The spring is sleeved on the outside of the cantilever boss 44 and abuts against the positioning ribs. The two ends of the spring abut against the cantilever body 42 and the overlapping ring edge, respectively.

[0087] The elastic force continuously provided by the elastic reset member 110 enables the heating device 3 to automatically adjust upwards and quickly reset when there are minor protrusions (such as adhered particles) on the surface of the cleaning member 11. This ensures a tight fit and avoids direct friction between the heating device 3 and hard objects, thus extending the service life of the heating device 3. Furthermore, when the cleaning member 11 becomes thinner due to the shedding of lint on its outer surface caused by prolonged use, the elastic reset member 110 can drive the cantilever bracket 4 downwards and keep the heating device 3 in contact with the cleaning member 11, preventing a loose fit between the heating device 3 and the cleaning member 11 due to thinning.

[0088] The drive component can actively drive the heating device 3 to the second position in specific scenarios. For example, when the cleaning device detects that the cleaning component 11 is entangled with a lot of hair, the drive component can immediately drive the heating device 3 to rise, making room for cutting and peeling the hair. After the hair is cleaned, the elastic reset component 110 can quickly push the heating device 3 back to the first position. The whole process does not require manual intervention, improving the intelligence of the device. In the final stage of self-cleaning and drying, if the temperature of the heating device 3 is detected to be too high, the drive component can automatically drive it to switch to the second position, using the heat dissipation gap 5 to cool it down. After the temperature returns to normal, it will reset, thus achieving overheat protection for the heating device 3.

[0089] As a preferred embodiment of this example, Figure 9 As shown, it also includes a power component 120 and a drive component 130 disposed on the housing 2. One end of the drive component 130 is connected to the heating device 3 through a movable connection structure. The power component 120 drives the drive component 130 to move, thereby driving the heating device 3 to move, so that the cantilever bracket 4 drives the heating device 3 to float up and down relative to the housing 2.

[0090] The housing 2 has a rear cavity on the rear side of the frame-shaped mounting groove. The power component 120 is installed in the rear cavity. The scraping component 200 is installed on the housing 2 via the rotating component 210. The output end of the power component 120 is provided with an output gear 1201. The rotating component 210 is provided with a mating gear 2101 on the side facing the rear cavity. The power component 120 drives the output gear 1201 to rotate, and drives the rotating component 210 to rotate through the meshing transmission between the output gear 1201 and the mating gear 2101. The rotation of the rotating component 210 drives the scraping component 200 to rotate synchronously, thereby realizing the switching of the scraping component 200 between the scraping position that is in contact with the cleaning component 11 and the separation position that is separated from the cleaning component 11. The scraping component 200 intermittently contacts or separates from the cleaning component 11, adapting to different working states of the surface cleaning equipment. When it is necessary to scrape off dirt from the outer surface of the cleaning component 11, the scraping component 200 rotates to the scraping position; when the cleaning work is finished and it is necessary to clean the hair or other debris adhering to the scraping component 200, the scraping component 200 can be moved to the separation position.

[0091] The driving member 130 includes a rotating part 1301 rotatably connected to the housing 2, and a first end 1302 and a second end 1303 located on both sides of the rotating part 1301. The first end 1302 is located above the rotating member 210, and the second end 1303 of the driving member 130 is connected to a movable connection structure. When the rotating member 210 rotates to drive the scraping assembly 200 from the scraping position to the separation position, the rotating member 210 acts on the first end 1302 of the driving member 130 and drives the first end 1302 to move downward. The driving member 130 rotates around the rotating part 1301, and at the same time, the second end 1303 of the driving member 130 moves upward to drive the heating device 3 to move upward and separate from the cleaning member 11 through the movable connection structure.

[0092] The power unit 120 drives the heating device 3 via the drive unit 130, enabling the heating device 3 to quickly adapt to different working states of the surface cleaning equipment. During the cleaning phase, when the cleaning component 11 rotates clockwise or counterclockwise to provide frictional force to the heating device 3 in different directions, the movable connection structure allows the heating device 3 to move horizontally relative to the cleaning component 11 to accommodate its rotation. During the self-cleaning dirt removal phase, the power unit 120 drives the heating device 3 to move rapidly between a first and second position, creating a gap between the heating device 3 and the cleaning component 11 to allow dirt to separate and peel off. During the drying phase, the power unit 120 precisely controls the contact force of the heating device 3, ensuring effective heat transfer while preventing deformation of the cleaning component 11's fibers due to excessive pressure, thus ensuring the fluffiness of the cleaning component 11 after drying.

[0093] As a preferred example of this implementation, such as Figure 9 , Figure 10 As shown, the driving component 130 is a driving linkage, and the other end of the driving linkage is movably connected to the output end of the power component 120. The upper end of the heating device 3 is provided with a lifting component 140. The movable connection structure includes a pin 150. The outer side of the other end of the driving linkage is provided with a notch. The upper end of the lifting component 140 extends upward into the notch. The pin 150 passes through the lifting component 140 and the through hole on the notch. The upper end of the lifting component 140 has a movable gap with at least the notch so that the driving linkage drives the heating device 3 to move up and down.

[0094] Specifically, the heating device 3 has a mounting hole, the lifting member 140 passes through the mounting hole and has a mounting part at the bottom of the mounting hole. The surface area of ​​the mounting part is larger than that of the mounting hole and fits against the lower surface of the heating device 3. The upper end of the lifting member 140 has a through hole, and the pin 150 passes through the through hole to mount the lifting member 140 on the pin 150. The second end 1303 of the drive linkage includes two aligned connecting protrusions 1304. The pin 150 passes through the through holes on the two connecting protrusions 1304 in sequence. A limiting groove 1305 is also provided on one side of one connecting protrusion 1304. One end of the pin 150 is bent and located in the limiting groove 1305. When it is necessary to remove the pin 150, simply rotate the pin 150 so that its bent side is disengaged from the limiting groove 1305, and then pull the pin 150 out of the connecting protrusion 1304. The lifting member 140 can be pulled out from the mounting hole from below to separate the lifting member 140 from the heating device 3.

[0095] The movable gap provides space for the autonomous floating of the heating device 3. When the heating device 3 is pressed against the cleaning component 11, even if the drive linkage is stationary, the heating device 3 can still achieve a small displacement through the movable gap, ensuring a tight fit and avoiding the impact of the rigidity of the drive structure on the heating effect. When the cleaning component 11 experiences irregular shaking, the movable gap can buffer the impact force transmitted from the heating device 3 to the drive linkage, reducing the vibration impact on the drive linkage and extending the service life of the power system. In addition, the connection method between the notch and the pin 150 facilitates assembly and maintenance. When the heating device 3 needs to be replaced, only the pin 150 needs to be removed to separate the drive linkage from the lifting component 140, without disassembling the entire drive system, reducing maintenance costs.

[0096] Example 2:

[0097] like Figures 7 to 10 As shown, the cantilever bracket 4 has a first guide portion at both ends, and the housing 2 has a second guide portion that is adapted to the first guide portion. The first guide portion and the second guide portion cooperate to guide the cantilever bracket 4 to move in the vertical direction, so as to drive the heating device 3 to switch between the first position and the second position.

[0098] Specifically, the first guide part is a circular guide protrusion 160 located at the end of the cantilever bracket 4, and the guide protrusion 160 has an arc-shaped side. The second guide part is a guide groove 170 extending vertically in the housing 2, and the guide protrusion 160 is located in the guide groove 170. The guide groove 170 guides the guide protrusion 160 to move vertically, thereby guiding the cantilever bracket 4 to move vertically.

[0099] The guide structure formed by the guide protrusion 160 and the guide groove 170 ensures that the cantilever bracket 4 moves in the vertical direction, avoids the heating device 3 from deviating in the direction of movement during the floating process, and ensures the stability of the up and down floating process, thereby ensuring the tight fit between the heating device 3 and the cleaning component 11 when the heating device 3 is in the first position.

[0100] Preferably, such as Figure 9 As shown, the heating device 3 extends along the width of the cleaning component 11, and there are two cantilever brackets 4, which are respectively set on both sides of the heating device 3.

[0101] Specifically, the extension length of the heating device 3 is equal to the width of the cleaning component 11, and the cantilever brackets 4 are located on both sides of the heating device 3, with a certain distance between the cantilever brackets 4 and the ends of the heating device 3. This ensures that the full width coverage of the heating device 3 guarantees that every area of ​​the outer periphery of the cleaning component 11 is evenly heated during rotation, avoiding differences in cleaning effect due to insufficient local temperature. Especially when cleaning large areas of oil stains, it ensures that the cleaning fluid remains in a highly efficient dissolving state across the entire surface of the cleaning component 11. The symmetrical arrangement of the two cantilever brackets 4 ensures that the heating device 3 is subjected to balanced force at both ends, preventing tilting during floating and ensuring that the contact surfaces of the heating device 3 and the cleaning component 11 remain parallel, reducing excessive local friction caused by tilting. During transportation or storage, the cantilever brackets 4 at both ends also provide stable support for the heating device 3, preventing deformation due to bumps or collisions and protecting the integrity of the core components.

[0102] This embodiment does not limit the structural form of the first guide part and the second guide part. In another embodiment, the first guide part can be constructed as a guide groove extending vertically on both sides of the cantilever bracket, and the second guide part can be constructed as a guide block on the housing that is adapted to the guide groove.

[0103] Example 3:

[0104] In this embodiment, as Figure 11 As shown, the extension 24 has a through hole at its top. The suspension part 41 includes a main body section 412 and a suspension section 411 located at the top of the main body section 412. The main body section 412 passes through the through hole into the extension 24, and the diameter of the through hole is larger than the cross-sectional diameter of the main body section 412, so as to form a displacement gap 240 between the main body section 412 and the through hole for the heating device 3 to float laterally. The extension 24 has obliquely extending sliding guide surfaces on both sides of the through hole, and the bottom surface of the suspension section 411 is adapted to the sliding guide surfaces. Figure 11 The middle arrow X indicates the direction of the lateral movement of the suspension section 411 under the guidance of the sliding guide surface when the heating device 3 floats laterally.

[0105] Example 4:

[0106] The difference between this embodiment and embodiment 3 lies in the structural form of the suspension section 411 and the structural form of the extension 24.

[0107] like Figure 12 As shown, the extension 24 has a movable groove 241 at the top of the through hole. The bottom surface of the movable groove 241 extends horizontally, and the bottom surface of the suspension section 411 also extends horizontally. As the heating device 3 floats laterally, the suspension section 411 slides within the movable groove 241. Furthermore, the dimensions of the through hole and the movable groove 241 are configured such that when the main body section 412 abuts against the inner wall of the through hole, the suspension section 411 abuts against the inner wall of the movable groove 241. Figure 12 The double-headed arrow Y indicates the sliding direction of the suspension section 411 when the heating device 3 floats laterally.

[0108] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0109] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0110] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A thermal surface cleaning device, comprising a floor brush having a housing, a cleaning component disposed in the housing, and a heating device for heating the cleaning component, characterized in that, The housing extends forward above the cleaning component to form an extension. An opening is provided at the lower end of the extension. The extension is provided with a mounting bracket for fixing a heating device therein and a cantilever bracket fixedly connected to both ends of the mounting bracket. The cantilever bracket floats the heating device in the opening so that there is a heat dissipation gap between the heating device and the extension. The lower surface of the heating device protrudes at least partially from the opening, and the heating device has a first position where at least a portion of its lower surface is in contact with the outer periphery of the cleaning component and a second position where it is separated from the cleaning component.

2. The surface cleaning device according to claim 1, characterized in that, The mounting bracket also includes an inner bracket fixedly connected to the cantilever bracket. The inner bracket has a mounting through hole extending along the length of the cleaning component. The heating device is disposed in the mounting through hole, and a portion of the heating device protrudes downward through the mounting through hole onto the lower surface of the inner bracket.

3. The surface cleaning device according to claim 2, characterized in that, The mounting bracket further includes an outer bracket and a flexible sealing element connecting the inner bracket and the outer bracket, and there is a floating gap between the inner bracket and the outer bracket. The extension is provided with a mounting cavity, the outer bracket is fixed to the mounting cavity and fits against its inner wall, the cantilever bracket and at least part of the heating device are located in the mounting cavity, and the heating device and the inner wall of the mounting cavity have the heat dissipation gap.

4. The surface cleaning device according to claim 3, characterized in that, The heating device is in a first position, and the heat dissipation gap includes a first gap between the heating device and the top wall of the mounting cavity and a second gap between the heating device and the side wall of the mounting cavity.

5. The surface cleaning device according to claim 1, characterized in that, The cantilever bracket includes a suspension portion located at its top, and the extension portion is provided with a mating portion that aligns with the suspension portion. The suspension portion moves vertically relative to the mating portion, and the heating device switches between a first position and a second position.

6. The surface cleaning device according to claim 5, characterized in that, An elastic reset member is provided between the cantilever bracket and the extension. The elastic reset member drives the cantilever bracket and the heating device to reset from the second position to the first position. The surface cleaning device also includes a drive component that abuts against the heating device, so that the cantilever bracket follows the heating device to switch from the first position to the second position.

7. The surface cleaning device according to claim 1, characterized in that, It also includes a power component and a drive component disposed on the housing. One end of the drive component is connected to the heating device through a movable connection structure. The power component drives the drive component to move, thereby driving the heating device to move, so that the cantilever bracket drives the heating device to float up and down relative to the housing.

8. The surface cleaning device according to claim 7, characterized in that, The driving component is a driving linkage, and the other end of the driving linkage is movably connected to the output end of the power component. The upper end of the heating device is provided with a lifting component. The movable connection structure includes a pin. The outer side of the other end of the driving linkage is provided with a notch. The upper end of the lifting component extends upward into the notch. The pin passes through the lifting component and the through hole on the notch. The upper end of the lifting component has a movable gap with at least the notch, so that the driving linkage drives the heating device to move up and down.

9. The surface cleaning device according to claim 1, characterized in that, The cantilever bracket has a first guide portion at both ends, and the housing has a second guide portion adapted to the first guide portion. The first guide portion and the second guide portion cooperate to guide the cantilever bracket to move in the vertical direction, so as to drive the heating device to switch between the first position and the second position.

10. The surface cleaning apparatus according to any one of claims 1 or 9, characterized in that, The heating device extends along the width of the cleaning component, and there are two cantilever brackets, which are respectively arranged on both sides of the heating device.

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