Surface cleaning device

Abstract

The utility model discloses a surface cleaning device which comprises a floor brush and a cleaning part rotatably installed on the floor brush, the floor brush comprises a floor brush shell, a dirt scraping part, a liquid separation part and a heating part, the dirt scraping part abuts against the cleaning part to scrape the cleaning part, the liquid separation part is used for supplying cleaning liquid to the cleaning part, and the heating part is used for heating the cleaning part in the rotating direction of the cleaning part. The dirt scraping part is located on the upstream side of the liquid separation part, the heating part is located on the downstream side of the liquid separation part, an infiltration gap exists between the liquid separation part and the heating part, and the heating part is used for heating the cleaning part and cleaning liquid on the cleaning part. By arranging the infiltration gap, the cleaning liquid sprayed to the cleaning piece through the liquid separation piece can be fully infiltrated on the cleaning piece before reaching the heating piece, the heating piece can heat the cleaning piece and can also heat the cleaning liquid infiltrated in the cleaning piece, and compared with the cleaning piece, the cleaning liquid is faster in heat absorption and better in soaking effect; and the cleaning capability of the cleaning part can be improved.

Description

Technical Field

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

[0002] For surface cleaning devices such as floor scrubbers, vacuum cleaners, and sweepers, the brush rollers rotate and contact the surface to be cleaned during operation. Existing surface cleaning devices with combined washing and mopping functions can enhance their cleaning performance by spraying cleaning fluid onto the brush rollers. To achieve even better cleaning results, the cleaning fluid can be heated; the hot fluid dissolves the dirt on the surface, which is then removed by the rotating brush rollers.

[0003] However, existing surface cleaning devices such as floor scrubbers are arranged with the squeegee, heating plate, and dispensing plate arranged sequentially along the rotation direction of the brush roller. This means the brush cloth is first scraped by the squeegee to drain water, then heated by the heating plate, and finally sprayed with cleaning fluid. This arrangement results in poor heat distribution on the brush roller and brush cloth. After the brush roller passes the squeegee, the amount of water carried by the brush cloth decreases, meaning less heat transfer medium. When the brush cloth passes the heating plate, only the brush cloth and a small amount of water act as heat receivers, absorbing very little heat. Furthermore, when it passes the dispensing plate, the cold water sprayed onto the brush cloth quickly cools it down, and the cleaning fluid also struggles to reach a high temperature. Consequently, heat cannot be effectively transferred to the surface being cleaned, resulting in poor cleaning performance and requiring repeated scrubbing of the same area to achieve the desired cleaning effect.

[0004] To address this technical problem, existing technologies propose adding a storage tank to the surface cleaning device and directly heating the cleaning fluid stored in the tank before spraying the hot cleaning fluid onto the brush rollers and cloth. However, this technology has the following drawbacks: To improve cleaning efficiency, the cleaning fluid temperature should ideally be close to 100°C. Heating the cleaning fluid to 100°C causes scale buildup in the storage tank and the connected hot water pipes, reducing the heating and delivery efficiency of the cleaning fluid. To prevent pipe blockage, the scale needs to be cleaned periodically with a weak acid (such as citric acid), increasing additional costs. Furthermore, all water pipes must withstand the weak acid environment, significantly increasing the material cost of the pipes and thus the overall cost of the surface cleaning device. In addition, when the cleaning fluid is weakly acidic, its cleaning reliability decreases. Since some surfaces or objects to be cleaned have poor acid resistance, using this type of surface cleaning device may damage the surface. However, if the heating temperature of the cleaning solution is lowered, for example to 50°C, a temperature that will not produce limescale, the temperature of the brush roller and brush cloth will also decrease due to the lower temperature of the cleaning solution, ultimately resulting in the failure to achieve the expected stain cleaning effect. Utility Model Content

[0005] This application provides a surface cleaning device to solve the technical problem that existing surface cleaning devices have poor cleaning ability when using hot water to clean the floor, and cannot achieve the expected cleaning effect.

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

[0007] A surface cleaning device includes a floor brush and a cleaning component rotatably mounted on the floor brush. The floor brush includes a brush housing, a scraping component, a dispensing component, and a heating component. The scraping component abuts against the cleaning component to scrape the cleaning component. The dispensing component supplies cleaning liquid to the cleaning component. Along the rotation direction of the cleaning component, the scraping component is located upstream of the dispensing component, and the heating component is located downstream of the dispensing component. There is a wetting gap between the dispensing component and the heating component. The heating component heats the cleaning component and the cleaning liquid on the cleaning component.

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

[0009] The central angle of the immersion gap along the circumference of the cleaning component to the coverage area of ​​the cleaning component is α, and α satisfies: 5°≤α≤25°.

[0010] At least a portion of the liquid dispensing component is clearance-fitted with the cleaning component.

[0011] Along the rotation direction of the cleaning component, the dispensing component and the heating component are arranged at intervals, and the wetting gap includes a buffer distance between the dispensing component and the heating component for the cleaning liquid to slowly wet the cleaning component.

[0012] The heating element includes a heating element and a heat-conducting element that cooperates with the heating element to transfer heat. The cleaning element includes a brush roller and a brush cloth covering the outside of the brush roller. The heat-conducting element is interference-fitted with the brush cloth.

[0013] The heat-conducting component has a plurality of heat-conducting protrusions along the axial direction of the cleaning component on the side facing the cleaning component, and a heat-conducting groove is formed between two adjacent heat-conducting protrusions; the extending direction of the heat-conducting protrusions and the heat-conducting grooves is in accordance with the rotation direction of the cleaning component.

[0014] The liquid dispensing component has a plurality of liquid outlet holes along the axial direction of the cleaning component, and the heat-conducting protrusion is arranged at least partially corresponding to the liquid outlet holes.

[0015] The floor brush also includes a top cover that is detachably mounted on the floor brush housing, and the heating element is mounted on the top cover.

[0016] The heating element includes a positioning bracket and a heating element mounted on the positioning bracket;

[0017] The positioning bracket is integrally formed with the top cover; or, the positioning bracket is detachably installed on the top cover; or, the positioning bracket is floatingly installed on the top cover so that the heating element and the cleaning element fit together.

[0018] The floor brush also includes a heat insulation component located between the positioning bracket and the top cover, the downward projection of which covers the heating element.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0020] 1. In this application, the scraping component, the liquid dispensing component, and the heating component are arranged sequentially from upstream to downstream along the rotation direction of the cleaning component. This allows the cleaning component to first be scraped and drained of dirt by the scraping component, then sprayed by the liquid dispensing component, and finally heated by the heating component. The heating component is positioned later than the liquid dispensing component along the rotation direction of the cleaning component, which allows the cleaning component to be heated while it is saturated with cleaning liquid. On the one hand, the presence of cleaning liquid increases the heat transfer medium on the cleaning component, improving the heating effect of the cleaning component in a short time. On the other hand, during the rotation of the cleaning component, the cleaning liquid is subjected to centrifugal force, and more cleaning liquid moves to the surface of the cleaning component and contacts the heating component. The heating component can improve the heating effect on the cleaning component by heating the cleaning liquid and by the penetration of the cleaning liquid into the cleaning component, thereby improving the hot water floor washing function of the surface cleaning device in this application.

[0021] Furthermore, in this application, there is an immersion gap between the dispensing component and the heating component. By setting this immersion gap, the cleaning liquid sprayed onto the cleaning component by the dispensing component can be fully immersed on the cleaning component before reaching the heating component. This ensures that when the cleaning component rotates to a position opposite to the heating component, the cleaning liquid has fully penetrated the cleaning component. The heating component can heat both the cleaning component and the cleaning liquid immersing in it. Compared to the cleaning component itself, the cleaning liquid absorbs heat faster and has a better heat distribution effect. This solution not only ensures that the bristles of the cleaning component absorb sufficient water, but also that when the fully immersed cleaning component reaches the heating component, the sufficient water can quickly absorb the heat from the heating component and rapidly conduct and penetrate the heat evaporated from the cleaning component to the bristles and roots of the cleaning component, thereby quickly increasing the temperature of the cleaning component. Because the heated water molecules fully penetrate into the cleaning component, the heat of the cleaning component can be maintained for a longer time, ensuring that the high-temperature cleaning component cleans the surface to be cleaned, which helps to improve the cleaning ability of the cleaning component, especially for cleaning heavily soiled surfaces.

[0022] In addition, the heating element and the dispensing element are arranged separately in this application. The cleaning liquid in the dispensing element will not be heated by the heating element, which avoids the formation of scale in the dispensing element. This not only extends the service life of the dispensing element, but also avoids the need to clean the dispensing element with weak acidic substances regularly, reducing the overall manufacturing cost of the machine and ensuring the reliability of cleaning the surface to be cleaned.

[0023] 2. In a preferred embodiment of this application, the central angle corresponding to the coverage area of ​​the cleaning part by the wetting gap along the circumference of the cleaning part is α, where α satisfies: 5°≤α≤25°. This central angle α is the coverage angle of the wetting gap along the circumference of the cleaning part, and its value is between 5° and 25°, including the endpoints of 5° and 25°. This range allows the cleaning fluid to fully wet the cleaning part before it is heated, ensuring that the cleaning part absorbs sufficient water. When the fully wetted cleaning part reaches the heating element, the water absorbs heat more quickly, and the heat can be rapidly conducted and penetrated into the cleaning part, rapidly increasing the temperature of the cleaning part and maintaining the heat for a longer period. Simultaneously, it avoids over-wetting leading to waste of cleaning fluid. Furthermore, it optimizes the structural layout of the floor brush, increasing its overall compactness and facilitating miniaturization.

[0024] 3. In a preferred embodiment of this application, at least a portion of the dispensing component and the cleaning component are in clearance fit: on the one hand, the clearance fit between the dispensing component and the cleaning component helps the cleaning fluid to be distributed more evenly on the cleaning component, improving the cleaning effect, and can reduce the scraping between the cleaning component and the dispensing component during rotation, thereby ensuring the wetting effect of the cleaning fluid on the cleaning component; on the other hand, the clearance fit between the dispensing component and the cleaning component can reduce the risk of the outlet hole on the dispensing component being blocked, ensuring the smooth flow of the cleaning fluid from the dispensing component; furthermore, the clearance fit can reduce the direct contact between the dispensing component and the cleaning component, thereby reducing wear on the dispensing component and the cleaning component and extending their respective service life; in addition, the clearance fit allows the dispensing component to adapt to small changes in the cleaning component, such as changes in the outer diameter of the cleaning component caused by wear or temperature changes, improving the stability and reliability of the fit between the dispensing component and the cleaning component.

[0025] Furthermore, the liquid distribution component includes a liquid distribution body and an extension part arranged sequentially along the rotation direction of the cleaning component. The liquid distribution body is provided with a liquid outlet, and the extension part and the outer surface of the cleaning component cooperate to form a liquid storage gap. The liquid storage gap can temporarily store the cleaning liquid, which can not only ensure a stable supply of cleaning liquid during the cleaning process, but also achieve full wetting of the cleaning liquid on the cleaning component before reaching the heating component, thereby improving the wetting effect of the cleaning liquid and increasing the amount of cleaning liquid stored on the cleaning component. This allows for the accumulation of heat transfer medium for the subsequent heating of the heating component, improving the subsequent heating effect and thus improving the cleaning effect on the surface to be cleaned.

[0026] 4. Due to the limitations of the size of the cleaning brush structure, the existing heating element is relatively small, covering only about 1 / 8 of the axial length of the cleaning element. This results in low heating efficiency and fails to provide adequate support for hot water floor washing. Therefore, in a preferred embodiment of this application, the heating element includes a heating element and a heat-conducting element that cooperates with the heating element for heat transfer. The arrangement of the heat-conducting element increases the contact area between the heating element and the cleaning element, thereby improving the heat conduction rate and thus enhancing the hot water floor washing effect. Moreover, during the drying process of the cleaning element after cleaning, the presence of the heat-conducting element also ensures the heat transfer area from the heat-conducting element to the cleaning element, improving the drying efficiency of the cleaning element.

[0027] Furthermore, the heat-conducting component is interference-fitted with the brush cloth outside the brush roller, thereby further improving the heat transfer efficiency between the heat-conducting component and the brush cloth, and increasing the temperature rise rate of the brush cloth and the cleaning liquid immersed in the brush cloth.

[0028] 5. In a preferred embodiment of this application, the heat-conducting component has a plurality of heat-conducting protrusions along the axial direction of the cleaning component, and a heat-conducting groove is formed between two adjacent heat-conducting protrusions. The extension direction of the heat-conducting protrusions and the heat-conducting grooves is in accordance with the rotation direction of the cleaning component. The design of the heat-conducting protrusions increases the contact area with the cleaning component, which helps to improve the heat conduction efficiency between the heat-conducting component and the cleaning component, so that heat is transferred to the cleaning component more quickly and evenly. The alternating distribution of heat-conducting protrusions and heat-conducting grooves helps to distribute heat more evenly along the axial direction of the cleaning component, improves the heat distribution of the brush cloth, and reduces deformation or damage to the cleaning component caused by local overheating. The heat-conducting grooves can serve as cooling channels to help the cleaning component and the heat-conducting protrusions dissipate heat from local overheated areas, avoid heat accumulation, and improve the problem of local overheating. The heat-conducting grooves can also serve as drainage channels for the cleaning fluid, improving the flow of the cleaning fluid on the brush cloth, increasing the distribution efficiency of the cleaning fluid on the brush cloth, thereby improving the heat uniformity of the cleaning fluid and enhancing the cleaning effect on stubborn stains on the surface to be cleaned. Furthermore, the extension direction of the heat-conducting protrusions and grooves follows the rotation direction of the cleaning component, which can reduce friction and wear during the rotation of the cleaning component while maintaining the continuity of heat conduction. Moreover, the heat-conducting protrusions and grooves form a wave-like texture along the axial direction of the cleaning component. This structure can scrape up the bristles on the brush cloth before the squeegee during the rotation of the cleaning component, thereby improving the cleaning and drying efficiency of the brush cloth.

[0029] 6. In a preferred embodiment of this application, the heat-conducting protrusion is arranged at least partially corresponding to the liquid outlet hole on the liquid distribution component, so that the cleaning liquid soaked in the brush cloth can be squeezed to both sides into the heat-conducting groove through the heat-conducting protrusion, thereby improving the uniformity of the cleaning liquid wetting on the brush cloth and thus improving the uniform heat distribution effect of the brush cloth.

[0030] 7. In a preferred embodiment of this application, the heating element is floatingly mounted on the top cover of the floor brush, thereby ensuring close contact and heat transfer between the heating element and the cleaning element, improving heat conduction efficiency. Furthermore, the floating mounting allows the heating element a certain degree of freedom in the vertical direction to accommodate minor changes in the cleaning element, such as changes in the outer diameter of the cleaning element due to wear or temperature variations, thus improving the stability and reliability of heat transfer between the heating element and the cleaning element. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a top view of the floor brush in Embodiment 1 of this application;

[0033] Figure 2 for Figure 1Sectional view along axis AA;

[0034] Figure 3 for Figure 1 BB-direction sectional view;

[0035] Figure 4 for Figure 3 Enlarged view of part C;

[0036] Figure 5 This is a top view of the lower top cover of Embodiment 1 of this application;

[0037] Figure 6 for Figure 5 DD section view;

[0038] Figure 7 This is a schematic diagram of the state of the lower top cover after it has been disassembled from the ground brush housing in Embodiment 1 of this application;

[0039] Figure 8 This is a schematic diagram showing the state of the floor brush after the cleaning components have been removed in Embodiment 1 of this application;

[0040] Figure 9 This is a schematic diagram of the structure of the heat-conducting component in Embodiment 1 of this application;

[0041] Figure 10 This is a schematic diagram of the structure of the floor brush in Embodiment 2 of this application.

[0042] in,

[0043] 1. Cleaning component; 11. Brush roller; 12. Brush cloth; 121. Heating section; 122. Cleaning section; 123. First connecting end; 124. Second connecting section; 13. Bracket;

[0044] 2. Heating element; 21. Heating component; 22. Heat-conducting component; 221. Heat-conducting protrusion; 222. Heat-conducting groove; 23. Positioning bracket;

[0045] 3. Liquid distribution component; 31. Liquid outlet; 32. Liquid distribution body; 33. Extension section;

[0046] 4. Liquid storage gap;

[0047] 5. Wetting gap;

[0048] 6. Scraping parts;

[0049] 7. Floor brush housing; 71. Suction port;

[0050] 8. Top cover;

[0051] 9. Elastic components;

[0052] 10. Thermal insulation components. Detailed Implementation

[0053] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Example 1:

[0059] like Figure 1 and Figure 2As shown, a surface cleaning device includes a floor brush and a cleaning component 1 rotatably mounted on the floor brush. The floor brush includes a floor brush housing 7, a scraping component 6, a dispensing component 3, and a heating component 2. The scraping component 6 abuts against the cleaning component 1 to scrape the cleaning component 1. The dispensing component 3 is used to supply cleaning liquid to the cleaning component 1. Along the rotation direction of the cleaning component 1, the scraping component 6 is located upstream of the dispensing component 3, and the heating component 2 is located downstream of the dispensing component 3. There is an immersion gap 5 between the dispensing component 3 and the heating component 2. The heating component 2 is used to heat the cleaning component 1 and the cleaning liquid on the cleaning component 1.

[0060] The cleaning solution in this embodiment 1 is water and / or a cleaning liquid containing cleaning agents.

[0061] like Figure 2 As shown, along the rotation direction of the cleaning component 1, the scraping component 6 is located upstream of the liquid distribution component 3, and the heating component 2 is located downstream of the liquid distribution component 3. This means that the scraping component 6, the liquid distribution component 3, and the heating component 2 in this application are arranged sequentially from upstream to downstream along the rotation direction of the cleaning component 1, so that the cleaning component 1 is first scraped and drained by the scraping component 6, then sprayed by the liquid distribution component 3, and then heated by the heating component 2.

[0062] The so-called wetting gap 5 refers to the spacing between the liquid distribution element 3 and the heating element 2 along the rotation direction of the cleaning element 1, so that the liquid distribution element 3 and the heating element 2 have a certain buffer distance along the rotation direction of the cleaning element 1 for the cleaning liquid to slowly wet the cleaning element 1.

[0063] In this embodiment 1, the heating element 2 is positioned rearward along the rotation direction of the cleaning element 1 compared to the liquid dispensing element 3. This allows the cleaning element 1 to be heated even when it is filled with cleaning liquid. On the one hand, the presence of cleaning liquid increases the heat transfer medium on the cleaning element 1, improving the heating effect of the cleaning element 1 in a short time. On the other hand, during the rotation of the cleaning element 1, the cleaning liquid is subjected to centrifugal force, causing more cleaning liquid to move towards the surface of the cleaning element 1 and contact the heating element 2. The heating element 2 can improve the heating effect on the cleaning element 1 by heating the cleaning liquid and by using the penetration effect of the cleaning liquid into the cleaning element 1, thereby improving the hot water floor cleaning function of the surface cleaning device in this embodiment 1.

[0064] Furthermore, in this embodiment 1, there is an immersion gap 5 between the liquid dispensing component 3 and the heating component 2. By setting the immersion gap 5, the cleaning liquid sprayed onto the cleaning component 1 by the liquid dispensing component 3 can be sufficiently immersed on the cleaning component 1 before reaching the heating component 2. This ensures that when the cleaning component 1 rotates to a position opposite to the heating component 2, the cleaning liquid has fully immersed in the cleaning component 1. The heating component 2 can heat both the cleaning component 1 and the cleaning liquid immersed in the cleaning component 1. Compared to the cleaning component 1 itself, the cleaning liquid absorbs heat faster and has a better heat uniformity. This solution not only ensures cleaning... The bristles of component 1 absorb sufficient water. When the fully water-soaked cleaning component 1 reaches the heating component 2, the sufficient water can quickly absorb the heat from the heating component and rapidly conduct and penetrate the heat evaporated from itself to the bristles and roots of the cleaning component 1. This quickly raises the temperature of the cleaning component. Because the heated water molecules fully penetrate into the cleaning component 1, the heat of the cleaning component 1 can be maintained for a longer time, ensuring that the high-temperature cleaning component 1 can clean the surface to be cleaned. This helps to improve the cleaning ability of the cleaning component 1, especially for cleaning heavily soiled surfaces.

[0065] Furthermore, in this embodiment 1, the heating element 2 and the dispensing element 3 are arranged separately. The cleaning liquid in the dispensing element 3 is not heated by the heating element 2, thus avoiding the formation of scale inside the dispensing element 3. This not only extends the service life of the dispensing element 3 but also avoids the need for periodic cleaning with weak acidic substances, reducing the overall manufacturing cost and ensuring the reliability of cleaning the surface to be cleaned. Eliminating the need for periodic scale removal also reduces the learning curve for users, facilitating the widespread application of the surface cleaning device.

[0066] From another perspective, along the rotation direction of the cleaning component 1, the liquid dispensing component 3 is located downstream of the scraping component 6, and the liquid dispensing component 3 is arranged close to the scraping component 6. When the cleaning component 1 passes the scraping component 6, the bristles are scraped up. When it rotates and passes the liquid dispensing component 3, the cleaning liquid sprayed from the liquid dispensing component 3 can be more quickly integrated into the bristles, thus improving the wetting effect of the cleaning component 1.

[0067] As a preferred embodiment of this Example 1, such as Figure 2 As shown, the floor brush housing 7 is provided with a suction port 71, and the scraping component 6 is located above the suction port 71. During the operation of the surface cleaning device or during the cleaning of the base station, the dirt scraped off by the scraping component 6 can be sucked away by the suction port 71, thereby reducing the cleaning burden on users.

[0068] As a preferred embodiment of this Example 1, such as Figure 2As shown, the central angle α corresponding to the coverage area of ​​the cleaning component 1 along the circumference of the wetting gap 5 is α, where α satisfies: 5°≤α≤25°. This central angle α is the coverage angle of the cleaning component 1 along the circumference of the wetting gap 5, and its value is between 5° and 25°, including the endpoints of 5° and 25°. This range allows the cleaning fluid to fully wet the cleaning component 1 before being heated by the heating element 2, ensuring that the cleaning component 1 absorbs sufficient water. When the fully wetted cleaning component 1 reaches the heating element 2, the water absorbs heat more quickly, allowing the heat to be rapidly conducted and penetrate into the cleaning component 1, rapidly increasing its temperature and maintaining the heat for a longer period. Simultaneously, it avoids over-wetting, which would lead to waste of cleaning fluid. Furthermore, it optimizes the structural layout of the floor brush, increasing its overall compactness and facilitating miniaturization.

[0069] As a preferred example of this embodiment, the central angle α satisfies: 8°≤α≤15°, which can further reduce the consumption of cleaning fluid, prevent the cleaning component 1 from becoming too wet, and ensure the heat transfer efficiency between the heating component 2 and the cleaning component 1 and the cleaning fluid on the cleaning component 1.

[0070] As a preferred embodiment of this Example 1, such as Figure 2 As shown, at least a portion of the dispensing component 3 has a clearance fit with the cleaning component 1. On one hand, this clearance fit helps the cleaning fluid to be distributed more evenly on the cleaning component 1, improving the cleaning effect and reducing scraping between the cleaning component 1 and the dispensing component 3 during rotation, thus ensuring the wetting effect of the cleaning fluid on the cleaning component 1. On the other hand, the clearance fit reduces the risk of blockage of the outlet hole 31 on the dispensing component 3, ensuring smooth flow of the cleaning fluid from the dispensing component 3. Furthermore, the clearance fit reduces direct contact between the dispensing component 3 and the cleaning component 1, thereby reducing wear on both components and extending their respective service lives. In addition, the clearance fit allows the dispensing component 3 to adapt to minor changes in the cleaning component 1, such as changes in the outer diameter of the cleaning component 1 due to wear or temperature variations, improving the stability and reliability of the fit between the dispensing component 3 and the cleaning component 1.

[0071] As a preferred example of this implementation, such as Figure 2As shown, the liquid dispensing component 3 includes a liquid dispensing body 32 and an extension 33 connected to the liquid dispensing body 32 and extending circumferentially along the cleaning component 1. Along the rotation direction of the cleaning component 1, the extension 33 is located downstream of the liquid dispensing body 32. The liquid dispensing body 32 is provided with a liquid outlet 31. The extension 33 and the outer surface of the cleaning component 1 cooperate to form a liquid storage gap 4. The liquid storage gap 4 can temporarily store the cleaning liquid, ensuring a stable supply of cleaning liquid during the cleaning process. Furthermore, before reaching the heating component 2, the liquid storage gap 4 and the wetting gap 5 allow for sufficient wetting of the cleaning component 1, improving the wetting effect of the cleaning liquid. This increases the amount of cleaning liquid stored on the cleaning component 1, accumulating a heat-conducting medium for the subsequent heating of the heating component 2, improving the subsequent heating effect, and thus enhancing the cleaning effect on the surface to be cleaned. In addition, during the rotation of the cleaning component 1, the cleaning fluid immersed in the cleaning component 1 will be subjected to centrifugal force. The presence of the extension part 33 can stop the cleaning fluid from being thrown out, so that the cleaning fluid is temporarily stored in the liquid storage gap 4 or is re-immersed in the cleaning component 1, reducing the waste of cleaning fluid.

[0072] Furthermore, such as Figure 2 As shown, the surface of the extension 33 facing the cleaning part 1 is adapted to the outer surface of the cleaning part 1 to match the shape of the cleaning part 1, thereby maintaining the size of the liquid storage gap 4 in the radial direction of the cleaning part 1, which helps to achieve uniform flow and wetting of the cleaning liquid on the cleaning part 1.

[0073] The heating element 2 in this application can be any of the following embodiments:

[0074] Implementation method 1: The heating element 2 includes a heating element 21, which abuts against the cleaning element 1 to heat the cleaning element 1 and the cleaning liquid on it.

[0075] Implementation Method Two: (e.g.) Figures 2 to 6 As shown, the heating element 2 includes a heating element 21 and a heat-conducting element 22 that cooperates with the heating element 21 to transfer heat. The cleaning element 1 includes a brush roller 11 and a brush cloth 12 covering the outside of the brush roller 11. The heat-conducting element 22 cooperates with the brush cloth 12 to transfer heat.

[0076] Due to the limitations of the size of the floor brush structure and the size of the cleaning component 1, the existing heating element 2 is relatively small, covering only about 1 / 8 of the axial length of the cleaning component 1. This results in low heating efficiency and fails to adequately support the hot water floor washing function. Therefore, in this second embodiment, a heat-conducting element 22 is provided to cooperate with the heating element 21 for heat transfer. The arrangement of the heat-conducting element 22 increases the contact area between the heating element 2 and the cleaning component 1, thereby improving the heat conduction rate and thus enhancing the hot water floor washing effect. Moreover, during the drying process of the cleaning component 1 after cleaning, the presence of the heat-conducting element 22 also ensures the heat transfer area from the heat-conducting element 22 to the cleaning component 1, improving the drying efficiency of the cleaning component 1.

[0077] Furthermore, the heat-conducting component 22 is interference-fitted with the brush cloth 12 outside the brush roller 11, thereby further improving the heat transfer efficiency between the heat-conducting component 22 and the brush cloth 12, and increasing the temperature rise rate of the brush cloth 12 and the cleaning liquid immersed in the brush cloth 12.

[0078] Of course, in another example, there is a gap between the heat-conducting element 22 and the brush cloth 12, and heat is transferred between the heat-conducting element 22 and the brush cloth 12 through thermal radiation.

[0079] It should be noted that this second embodiment does not limit the heat transfer method between the heating element 21 and the heat-conducting element 22. In one example, such as Figure 3 , Figure 4 and Figure 6 As shown, the heating element 21 and the heat-conducting element 22 are in close contact for heat transfer, achieving contact heat transfer and improving conduction efficiency. In another example, the heating element 21 and the heat-conducting element 22 are fitted with a gap, forming a heat transfer gap that allows for thermal radiation. The heating element 21 transfers heat to the heat-conducting element 22 through thermal radiation. In yet another example, the heating element 21 is an electromagnetic heating element, and the heat-conducting element 22 is a structure made of a material such as a ferromagnetic metal. During the operation of the heating element 21, the heat-conducting element 22 is within the magnetic field range of the heating element 21, thereby achieving electromagnetic heating of the heat-conducting element 22.

[0080] In this second embodiment, the structure of the heat-conducting component 22 can be any of the following examples:

[0081] Example 1: The surface of the heat-conducting element 22 facing the cleaning element 1 is flat. The heat-conducting element 22 abuts against the brush cloth 12 to achieve contact heat conduction; or, there is a gap between the heat-conducting element 22 and the brush cloth 12 to achieve heat radiation heat conduction.

[0082] Example 2: such as Figure 3 , Figure 4 , Figure 6 and Figure 9As shown, the heat-conducting component 22 has several heat-conducting protrusions 221 along the axial direction of the cleaning component 1 on the side facing the cleaning component 1. The heat-conducting protrusions 221 abut against the brush cloth 12, and a heat-conducting groove 222 is formed between two adjacent heat-conducting protrusions 221. The extending direction of the heat-conducting protrusions 221 and the heat-conducting grooves 222 is in line with the rotation direction of the cleaning component 1. The design of the heat-conducting protrusions 221 increases the contact area with the cleaning component 1, which helps to improve the heat conduction efficiency between the heat-conducting component 22 and the cleaning component 1, so that heat is transferred to the cleaning component 1 more quickly and evenly. The alternating distribution of the heat-conducting protrusions 221 and the heat-conducting grooves 222 helps to distribute heat more evenly along the axial direction of the cleaning component 1, improves the heat distribution of the brush cloth 12, and reduces deformation or damage to the cleaning component 1 caused by local overheating. The heat-conducting groove 222 serves as a cooling channel, assisting the cleaning component 1 and the heat-conducting protrusion 221 in dissipating heat from locally overheated areas, preventing heat accumulation and improving localized overheating. The heat-conducting groove 222 also acts as a channel for the cleaning fluid, improving its flow on the brush cloth 12 and increasing its distribution efficiency, thereby enhancing the uniform heating effect of the cleaning fluid and thus improving the cleaning effect on stubborn stains on the surface to be cleaned. Furthermore, the extension direction of the heat-conducting protrusion 221 and the heat-conducting groove 222 aligns with the rotation direction of the cleaning component 1, reducing friction and wear during rotation while maintaining continuous heat conduction. Moreover, the heat-conducting protrusion 221 and the heat-conducting groove 222 form a wave-like texture along the axial direction of the cleaning component 1. This structure allows the brush bristles on the brush cloth 12 to be scraped off before the squeegee during the rotation of the cleaning component 1, improving the cleaning and drying efficiency of the brush cloth 12.

[0083] As a preferred example under this Example 2, such as Figure 8 As shown, the liquid distribution component 3 has several liquid outlet holes 31 along the axial direction of the cleaning component 1, and the heat-conducting protrusions 221 are arranged at least partially corresponding to the liquid outlet holes 31. This arrangement allows the cleaning liquid soaked in the brush cloth 12 to be squeezed to both sides into the heat-conducting grooves 222 through the heat-conducting protrusions 221, improving the uniformity of the cleaning liquid wetting on the brush cloth 12 and thus enhancing the heat distribution effect of the brush cloth 12. Furthermore, the one-to-one correspondence between the liquid outlet holes 31 and the heat-conducting protrusions 221 ensures that the brush cloth 12 in contact with the heat-conducting protrusions 221 is soaked in cleaning liquid, thereby reducing the friction between the heat-conducting protrusions 221 and the brush cloth 12, facilitating the smooth rotation of the cleaning component 1.

[0084] Furthermore, the heat-conducting protrusions 221 are arranged in a one-to-one correspondence with the liquid outlet holes 31, that is, one liquid outlet hole 31 corresponds to one heat-conducting protrusion 221, thereby further improving the uniformity of the cleaning liquid wetting on the brush cloth 12 and further improving the heat uniformity effect.

[0085] As an example under Example 2, the liquid distribution component 3 is provided with a plurality of liquid outlet holes 31 along the axial direction of the cleaning component 1, and the heat-conducting groove 222 is arranged at least partially corresponding to the liquid outlet holes 31. This arrangement ensures that at the initial contact between the heat-conducting component 22 and the cleaning component 1, the area of ​​the brush cloth 12 corresponding to the heat-conducting groove 222 is soaked with cleaning liquid, while the area of ​​the brush cloth 12 corresponding to the heat-conducting protrusion 221 is soaked with a small amount of cleaning liquid. This ensures a certain frictional force between the heat-conducting protrusion 221 and the brush cloth 12, reducing the rotational speed of the cleaning component 1. On the one hand, this prolongs the contact time between the heat-conducting component 22 and the cleaning component 1, increasing the temperature rise rate of the cleaning component 1; on the other hand, it prolongs the soaking time of the cleaning liquid at the soaking gap 5, increasing the humidity of the cleaning component 1, thereby improving the heat transfer efficiency.

[0086] In this example 2, the volume of the heat-conducting protrusion 221 and the heat-conducting groove 222 is not limited. Preferably, the heat-conducting protrusion 221 and the heat-conducting groove 222 have the same volume. This arrangement of protrusions and grooves with equal volumes helps to achieve uniform heat distribution in the heating element 2, avoids overheating or undercooling in certain areas, and thus can evenly heat the cleaning element 1 and improve heat uniformity.

[0087] As a preferred embodiment of this Example 1, such as Figure 2 and Figure 3 As shown, the cleaning component 1 includes a brush roller 11 and a brush cloth 12 covering the outside of the brush roller 11. The brush roller 11 includes a drive roller and a driven roller. The cleaning component 1 also includes a bracket 13 located between the drive roller and the driven roller to support the brush cloth 12. The brush cloth 12 includes a cleaning section 122 located below the bracket 13 for cleaning the surface to be cleaned, a heating section 121 located above the bracket 13 and opposite to the cleaning section 122, and a first connecting section and a second connecting section 124 connecting the cleaning section 122 and the heating section 121 respectively. Both the cleaning section 122 and the heating section 121 are straight sections, and the heating component 2 abuts against the straight sections. The heating element 2 abuts against the straight section of the heating segment 121, enabling contact heat transfer between the heating element 2 and the heating segment 121. This improves the heating effect of the heating element 2 on the brush cloth 12 and the cleaning liquid on it. The straight extension of the heating segment 121 allows the cleaning liquid to spread on the brush cloth 12 in a general axial direction along the brush roller 11 during the contact heating process between the heating element 2 and the brush cloth 12. This avoids the phenomenon of water leakage caused by the contact between the heating element 2 and the brush cloth 12 when the heating segment 121 is in an inclined or arc-shaped extension arrangement. This ensures the wetting effect of the cleaning liquid on the brush cloth 12, thereby ensuring the thermal efficiency of heat transfer through the cleaning liquid.

[0088] It should be noted that the straightness in the straight section is not an absolutely flat straight line, but rather a certain degree of flatness relative to the arc-shaped structure of the cleaning component 1 that contacts the heating component 2 in the following embodiment 2.

[0089] As a preferred example of this implementation, such as Figure 3 As shown, the heating element 2 includes a heating element 21 and a heat-conducting element 22. A heat-conducting protrusion 221 and a heat-conducting groove 222 are located on the side of the heat-conducting element 22 facing the cleaning element 1. The extension length of the heat-conducting element 22 along the rotation direction of the brush 12 is greater than or equal to the extension length of the heating section 121. A longer heat-conducting element 22 can cover a larger area of ​​the brush 12, further enhancing the heating effect on the brush 12 and thus improving the cleaning ability of the surface cleaning device for hot water floor washing.

[0090] In this embodiment 1, the heating element 2 can be installed using any of the following embodiments:

[0091] Implementation method 3: The floor brush is provided with a mounting cavity for installing the cleaning component 1, and the floor brush housing 7 is provided with a mounting bracket for installing the heating component 2. The mounting bracket is pivotally connected to the floor brush housing 7, so as to have a working position in which the heating component 2 cooperates with the cleaning component 1 for heat transfer, and a avoidance position that rotates to one side of the mounting cavity to avoid the cleaning component 1.

[0092] Implementation Method Four: (e.g.) Figure 7 and Figure 8 As shown, the floor brush also includes a top cover 8 detachably mounted on the floor brush housing 7, and a heating element 2 is mounted on the top cover 8. The top cover 8 is detachable, which facilitates the user to remove and place the cleaning element 1 for cleaning or replacement.

[0093] This fourth embodiment does not limit the method of detachable connection between the top cover 8 and the floor brush. In one example, one of the floor brush housing 7 and the top cover 8 has a movable latch, and the other has a fastener that can engage with the movable latch. The floor brush housing 7 and the top cover 8 are engaged through the movable latch and the fastener. In another example, one of the floor brush housing 7 and the top cover 8 has a magnetic component, and the other has a mating component that magnetically engages with the magnetic component. The floor brush housing 7 and the top cover 8 are held together by the attraction between the magnetic component and the mating component.

[0094] like Figure 3 and Figure 6 As shown, the heating element 2 includes a positioning bracket 23 and a heating element 21 mounted on the positioning bracket 23.

[0095] In one example, the positioning bracket 23 is integrally formed with the top cover 8, thereby eliminating the need for additional assembly processes and auxiliary components such as connectors that would result from separate molding.

[0096] In another example, the positioning bracket 23 is detachably mounted on the top cover 8, which allows the user to repair or replace the heating element 2 by removing and installing the positioning bracket 23.

[0097] In another example, the positioning bracket 23 is floatingly mounted on the top cover 8, thereby ensuring close contact and heat transfer between the heating element 2 and the cleaning element 1, improving heat conduction efficiency. Furthermore, the floating mounting allows the heating element 2 a certain degree of freedom in the vertical direction to accommodate minor changes in the cleaning element 1, such as changes in the outer diameter of the cleaning element 1 due to wear or temperature variations, improving the stability and reliability of heat transfer between the heating element 2 and the cleaning element 1. In a specific implementation, an elastic element 9 is provided between the positioning bracket 23 and the top cover 8. The elastic element 9 can be, for example, a spring, and the elasticity of the elastic element 9 enables the floating assembly of the positioning bracket 23 and the top cover 8.

[0098] As a preferred example under this fourth embodiment, such as Figure 3 and Figure 6 As shown, the floor brush also includes a heat insulation component 10 located between the positioning bracket 23 and the top cover 8, with the downward projection of the heat insulation component 10 covering the heating element 2. This arrangement reduces heat transfer from the heating element 2 to the top cover 8 during operation, which on the one hand extends the service life of the top cover 8, and on the other hand prevents users from accidentally touching the hot top cover 8 and experiencing a poor user experience.

[0099] Example 2:

[0100] This embodiment 2 is basically the same as embodiment 1 in structure and principle, the only difference being:

[0101] like Figure 10 As shown, the cleaning component 1 includes a brush roller 11 and a brush cloth 12 covering the outside of the brush roller 11. There is one and only one brush roller 11, and the brush cloth 12 is wrapped around the outside of the brush roller 11. The dirt scraping component 6, the liquid separating component 3, and the heating component 2 are arranged sequentially from the upstream side to the downstream side along the rotation direction of the cleaning component 1.

[0102] As a preferred example under this embodiment 2, such as Figure 10 As shown, the surface of the heating element 2 facing the cleaning element 1 is adapted to the arc shape of the brush roller 11 to increase the contact area between the heating element 2 and the brush cloth 12 and improve the heat transfer performance of the heating element 2 to the brush cloth 12.

[0103] As a preferred example under this embodiment 2, the central angle α corresponding to the coverage area of ​​the cleaning component 1 along the circumference of the wetting gap further satisfies: 5°≤α≤10°. Unlike embodiment 1, in this embodiment 2, for a single brush roller, the circumference of the brush roller is relatively small. When the central angle α satisfies 5°≤α≤10°, it can further optimize the layout of the scraping component 6, the liquid separating component 3, and the heating component 2 along the rotation direction of the cleaning component 1. This ensures that the cleaning liquid can fully wet the cleaning component 1, allowing the cleaning component 1 to absorb sufficient water, while also ensuring the heating area of ​​the cleaning component 1 and the cleaning liquid on it by the heating component 2. This allows the cleaning liquid and the cleaning component 1 to absorb heat more quickly, further improving the temperature rise rate of the cleaning component 1.

[0104] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0105] 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.

[0106] The above description is merely an embodiment of this application and is not intended to limit the scope of 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 principles of this application should be included within the scope of the claims of this application.

Claims

1. A surface cleaning device comprising a floor brush and a cleaning component rotatably mounted on the floor brush, the floor brush comprising a brush housing, a scraping component, a dispensing component, and a heating component, the scraping component abutting against the cleaning component to scrape the cleaning component, the dispensing component supplying cleaning liquid to the cleaning component, characterized in that, Along the rotation direction of the cleaning component, the scraping component is located upstream of the dispensing component, the heating component is located downstream of the dispensing component, and there is an immersion gap between the dispensing component and the heating component. The heating component is used to heat the cleaning component and the cleaning liquid on the cleaning component.

2. The surface cleaning device according to claim 1, characterized in that, The central angle of the immersion gap along the circumference of the cleaning component to the coverage area of ​​the cleaning component is α, and α satisfies: 5°≤α≤25°.

3. The surface cleaning device according to claim 1, characterized in that, At least a portion of the liquid dispensing component is clearance-fitted with the cleaning component.

4. The surface cleaning device according to claim 1, characterized in that, Along the rotation direction of the cleaning component, the dispensing component and the heating component are arranged at intervals, and the wetting gap includes a buffer distance between the dispensing component and the heating component for the cleaning liquid to slowly wet the cleaning component.

5. A surface cleaning device according to claim 1, characterized in that, The heating element includes a heating element and a heat-conducting element that cooperates with the heating element to transfer heat. The cleaning element includes a brush roller and a brush cloth covering the outside of the brush roller. The heat-conducting element is interference-fitted with the brush cloth.

6. A surface cleaning device according to claim 5, characterized in that, The heat-conducting component has a plurality of heat-conducting protrusions along the axial direction of the cleaning component on the side facing the cleaning component, and a heat-conducting groove is formed between two adjacent heat-conducting protrusions; the extending direction of the heat-conducting protrusions and the heat-conducting grooves is in accordance with the rotation direction of the cleaning component.

7. A surface cleaning device according to claim 6, characterized in that, The liquid dispensing component has a plurality of liquid outlet holes along the axial direction of the cleaning component, and the heat-conducting protrusion is arranged at least partially corresponding to the liquid outlet holes.

8. A surface cleaning device according to claim 1, characterized in that, The floor brush also includes a top cover that is detachably mounted on the floor brush housing, and the heating element is mounted on the top cover.

9. A surface cleaning device according to claim 8, characterized in that, The heating element includes a positioning bracket and a heating element mounted on the positioning bracket; The positioning bracket is integrally formed with the top cover; or, the positioning bracket is detachably installed on the top cover; or, the positioning bracket is floatingly installed on the top cover so that the heating element and the cleaning element fit together.

10. A surface cleaning device according to claim 9, characterized in that, The floor brush also includes a heat insulation component located between the positioning bracket and the top cover, the downward projection of which covers the heating element.

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