A surface cleaning apparatus

Abstract

The application discloses a surface cleaning device, including a floor brush with a cleaning element, the floor brush including a housing, a squeegee assembly and a driving device mounted on the housing, the driving device driving the squeegee assembly to rotate to make the squeegee assembly contact or separate from the cleaning element, a deformable seal is arranged between the squeegee assembly and the housing, the seal including a seal body and at least one flexible deformation part, the flexible deformation part deforms when the squeegee assembly rotates to a first position separated from the cleaning element, so that the seal body at least partially contacts the squeegee assembly. When the squeegee assembly is located at the first position separated from the cleaning element, the amount of sewage splashed to the rotating element and the housing from the cleaning element increases, at this time, the seal body at least partially contacts the rotating element, the sealing degree between the seal and the rotating element is increased, and the probability that the sewage breaks through the connecting gap between the seal and the housing and the rotating element and enters the inside of the housing is reduced.

Description

Technical Field

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

[0002] In modern life, surface cleaning devices are increasingly widely used, with common devices such as floor scrubbers and robotic vacuum cleaners greatly facilitating people's cleaning work. The floor brush of these surface cleaning devices, as a core cleaning component, directly affects the cleaning effect. A floor brush typically includes a housing and a cleaning component, a dispensing component, and a scraping component that contacts the cleaning component. The water supply system provides cleaning fluid to the cleaning component through the dispensing component. The cleaning component rotates and wipes the surface to be cleaned, while the scraping component continuously scrapes the cleaning component, removing dirt and / or debris. The suction system collects the dirt or debris, thus completing the cleaning of the surface. For example, patent CN220557944U discloses a cleaning device and floor brush assembly. By adding a drainage section to the scraper assembly, the drainage section is constructed as a curved surface extending from the scraping section to the suction port. The dirt scraped off the cleaning element by the scraping section is configured to flow downwards and be guided through the curved surface of the drainage section to the suction port. While it can prevent dirt from accumulating in the area near the squeegee and reduce the impact of dirt on the cleaning components and squeegee, the dirt that is scraped off can sometimes remain on the roller brush cover and the dispensing parts, which greatly affects the user experience.

[0003] Because the cleaning components are quite dirty after cleaning and require further rinsing, industry technicians have invented a self-cleaning method for these components to reduce the burden on customers. This method involves rotating the cleaning component, with a water supply system providing cleaning fluid through a distributor. A scraping component continuously scrapes away dirt and liquid from the component, and a suction system removes the scraped-off fluid and / or dirt, thus completing the self-cleaning process. However, long-term user feedback indicates that if hair or other entangled materials are present on the cleaning component, they cannot be completely cleaned. Dirt also accumulates near the suction port, on the back of the scraping component, on the roller brush cover, and on the distributor, preventing thorough cleaning.

[0004] To address this, patent application CN119405229 discloses a cleaning device and control method. The cleaning device connects a scraping component 30 to a roller brush cover 22 via a linkage component 301. When the scraping component 30 moves to a clearance position, the roller brush cover 22 can rotate to a self-cleaning position that contacts and engages with the roller brush 21 under the drive of the linkage component 301, thus facilitating the cleaning of the roller brush cover 22 by the roller brush 21. When the scraping component 30 moves to the scraping position, the roller brush cover 22 can rotate to an initial position that is spaced apart from the roller brush 21 under the drive of the linkage component 301 and / or the action of the reset component, thereby effectively ensuring that there is a set gap between the roller brush cover 22 and the roller brush 21 when the cleaning device 100 is performing normal cleaning work, and that it will not interfere with the movement of the roller brush 21. Although this patent application achieves self-cleaning of dirt on the roller brush cover by driving the roller brush cover to contact and adhere to the roller brush, the linkage component drives the roller brush cover to move. Since the roller brush cover is located outside the base, and the linkage component connected to the roller brush cover 22 is located inside the base, the scraping component 30 rotates between the avoidance position and the scraping position under the drive device 40. The drive device 40 includes a power mechanism 41 and a transmission mechanism 42. The drive device is located inside the base, and the roller brush cover 22 and the scraping component are located on the base and outside the base. The relative movement between the roller brush cover and the scraping component and the base makes it easy for water to enter the base. If only conventional seals are used, the conventional sealing structure will wear out more severely after long-term friction. If a softer material is used, the scraping component and the roller brush cover will not move smoothly. If the seals fail due to wear and tear from prolonged use, wastewater and other impurities can easily enter the base through the gaps between the scraping assembly, the roller brush cover, and the housing during cleaning. This can damage internal electronic components, power mechanisms, and transmission mechanisms, affecting the device's lifespan and performance stability. For example, in some floor scrubbers, poor sealing at these gaps allows wastewater to leak into critical components like the motor, causing short circuits and preventing normal operation, significantly reducing user experience. Furthermore, dirt can clog or wear components, increasing maintenance costs. Additionally, existing sealing structures are often too simple to adapt to the different sealing requirements of the scraping assembly in various positions. For instance, when the scraping assembly separates from the cleaning component, ordinary sealing structures cannot adapt to this positional change, maintaining the original seal and potentially leading to incomplete sealing. Conversely, when the scraping assembly is in contact with the cleaning component, the limitations of the sealing structure can hinder its movement, resulting in poor scraping performance. Utility Model Content

[0005] This application provides a surface cleaning device to solve the technical problem that traditional surface cleaning devices are prone to dirt penetration between the rotating component and the housing due to the difficulty of the sealing structure adapting to different positional states of the rotating component.

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

[0007] A surface cleaning device includes a floor brush with a cleaning element. The floor brush includes a housing, a scraping assembly mounted on the housing, and a drive device. The drive device drives the scraping assembly to rotate so that the scraping assembly abuts against or separates from the cleaning element. A deformable seal is provided between the scraping assembly and the housing. The seal includes a sealing body and at least one flexible deformable portion. The flexible deformable portion deforms when the scraping assembly rotates to a first position where it separates from the cleaning element, so that the sealing body at least partially conforms to the scraping assembly.

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

[0009] The thickness of the flexible deformable part is less than the thickness of the sealing body.

[0010] The floor brush also includes a rotating component that drives the scraping assembly to rotate. The sealing component includes a first connecting portion that is fixedly connected to the housing and the sealing body, and a second connecting portion that is fixedly connected to the rotating component and the sealing body. The flexible deformation portion includes a first flexible body disposed on the first connecting portion and / or the sealing body.

[0011] The first flexible body is disposed at the connection between the sealing body and the first connecting portion; or, the first flexible body is disposed at the end of the sealing body; or, the first flexible body is disposed at the end of the first connecting portion.

[0012] The rotating component drives the scraping assembly to a first position, whereby the first flexible body retracts and deforms, and the portion of the sealing body near the first connecting part seals and adheres to the lower surface of the rotating component.

[0013] The rotating component drives the scraping assembly to move to a second position that contacts the cleaning component. The other end of the second connecting part is connected to the sealing body. The sealing body extends forward following the second connecting part to stretch and expand the first flexible body.

[0014] The scraping component is located in the first position, and the angle between the extension line of the sealing body and the first connecting part is α1, where α1 ≤ 45°; the scraping component is located in the second position, and the angle between the extension line of the sealing body and the first connecting part is α2, where α2 ≤ 120°.

[0015] The flexible deformation portion further includes a second flexible body disposed on the second connecting portion and / or the sealing body. The rotating member drives the scraping assembly to move to the first position. The second connecting portion moves with the rotating member to the rear side of the second flexible body. The second flexible body expands and deforms. The sealing body is at least partially attached to the lower surface of the rotating member.

[0016] The rotating component drives the scraping assembly to the second position, and the second flexible body moves with the second connecting part to the front side of the sealing body so that the second flexible body retracts and deforms.

[0017] The second flexible body is disposed at the connection between the sealing body and the second connecting part; or, the second flexible body is disposed at the end of the sealing body; or, the second flexible body is disposed at the end of the second connecting part.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] The surface cleaning device of this application includes a cleaning component and a scraping assembly. The scraping assembly can contact or separate from the cleaning component as needed. For example, when the cleaning component is cleaning the surface, hair, threads, or other easily entangled dirt may adhere to its outer surface, affecting the cleaning effect. The scraping assembly can then contact the cleaning component and scrape off the dirt adhering to it. After being removed, the dirt may accumulate at the interface between the scraping assembly and the cleaning component. At this point, a rotating component can move the scraping assembly to separate it from the cleaning component, providing space for the dirt to fall and detach. The dirt falls through the gap between the scraping assembly and the cleaning component and is then sucked up by the suction port. Furthermore, a seal is provided between the rotating component and the housing to reliably seal the gap between them, reducing the probability of wastewater entering the housing through this gap. The cooperation between the sealing body and the flexible deformable part allows the seal to flexibly deform according to the position of the rotating component, ensuring the seal effectively stops the gap between the rotating component and the housing during rotation.

[0020] Furthermore, when the scraping assembly is in the first position separated from the cleaning component, the stopping area of ​​the scraping assembly on the cleaning component is reduced, and more sewage is thrown from the cleaning component towards the rotating component and the housing. At this time, the sealing body is at least partially in contact with the rotating component, which increases the sealing tightness between the sealing component and the rotating component, further reducing the probability of sewage breaking through the connection gap between the sealing component and the housing and the rotating component and entering the housing. On the other hand, when the scraping assembly moves to the first position, since the scraping assembly and the rotating component are closer to the housing, the space left for the sealing component is reduced. At this time, the sealing component is at least partially in contact with the rotating component, which can occupy less space between the rotating component and the housing, reducing the probability of the sealing component being damaged by the rotation and squeezing of the rotating component. 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 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 Example 1;

[0023] Figure 2 A cross-sectional view of a portion of the surface cleaning device in Example 1. Figure 1 ;

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

[0025] Figure 4 A cross-sectional view of a portion of the surface cleaning device in Example 1. Figure 2 ;

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

[0027] Figure 6 This is a schematic diagram of the surface cleaning device in Example 1.

[0028] Figure 7 A cross-sectional view of a portion of the surface cleaning device in Example 1. Figure 1 ;

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

[0030] Figure 9 A cross-sectional view of a portion of the surface cleaning device in Example 2. Figure 2 ;

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

[0032] Figure 11 A cross-sectional view of a portion of the surface cleaning device in Example 3. Figure 1 ;

[0033] Figure 12 for Figure 11 Enlarged view of part E;

[0034] Figure 13 A cross-sectional view of a portion of the surface cleaning device in Example 3. Figure 2 ;

[0035] Figure 14 for Figure 13Enlarged view of part F.

[0036] List of components and reference numerals:

[0037] 1. Floor brush, 11. Housing, 111. Upper housing, 112. Lower housing, 12. Cleaning component, 121. Rear roller, 13. Scraping assembly, 14. Rotating component, 15. Suction port, 16. Liquid dispensing component;

[0038] 2 sealing element, 21 sealing body, 22 flexible deformable part, 221 first flexible body, 222 second flexible body, 23 first connecting part, 24 second connecting part;

[0039] 3. First insertion protrusion;

[0040] 4. First insertion groove;

[0041] 5. Second insertion protrusion;

[0042] 6. Second insertion groove;

[0043] 7. Fuselage;

[0044] 8 heating components;

[0045] 9 drive linkages;

[0046] 10 power components;

[0047] 110 Water Tank, 1101 First Zone, 1102 Second Zone;

[0048] 120 Flexible seal, 1201 Body area, 1202 First deformed part, 1203 Second deformed part, 1204 Third deformed part;

[0049] 130 sealing flange;

[0050] 140 sealing groove. Detailed Implementation

[0051] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Example 1:

[0057] like Figures 1 to 6 As shown, a surface cleaning device includes a floor brush 1 with a cleaning component 12. The floor brush 1 includes a housing 11, a scraping assembly 13 mounted on the housing 11, and a driving device. The driving device drives the scraping assembly 13 to rotate so that the scraping assembly 13 abuts against or separates from the cleaning component 12. A deformable seal 2 is provided between the scraping assembly 13 and the housing 11. The seal 2 includes a sealing body 21 and at least one flexible deformable part 22. The flexible deformable part 22 deforms when the scraping assembly 13 rotates to a first position where it separates from the cleaning component 12, so that the sealing body 21 at least partially fits against the scraping assembly 13.

[0058] Specifically, the surface cleaning device also includes a body 7 pivotally connected to the floor brush 1, a dispensing component 16 for wetting the cleaning component 12, and a heating component 8 for heating the cleaning component 12. The body 7 can rotate relative to the floor brush 1 to accommodate different operator postures. A handle is provided on the top of the body 7. When cleaning the floor, the angle between the body 7 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 7 towards the rear of the floor brush 1, lowering the vertical height of the body 7 so that the cleaning component 12 can enter under the table. The dispensing component 16 has multiple dispensing ports along the extension direction of the cleaning component 12, from which cleaning liquid flows to evenly wet the cleaning component 12 or the surface to be cleaned. The floor brush 1's housing 11 includes an upper housing 111 and a lower housing 112. The lower housing 112 has an opening at its upper end, and the upper housing 111 covers the upper port of the lower housing 112. The lower housing 112 houses a water pump and a motor (not shown in the figure) that drives the cleaning component 12 to rotate. A suction port 15 is located in the central area of ​​the lower housing 112. A suction hose is located inside the lower housing 112; one end of the suction hose is connected to and communicates with the suction port 15, and the other end of the suction hose passes rearward through the hinge between the lower housing 112 and the body 7, extending upward into the body 7 and communicating with the suction pipe inside the wastewater collection tank. The wastewater collection tank is detachably connected to the body 7 and is used to temporarily store wastewater collected during the cleaning process.

[0059] The scraping assembly 13 can be constructed as a comb-tooth scraping component, a scraper-strip scraping component, or a combination of comb teeth and scraper strips. The heating assembly 8 is mounted on the upper housing 111 via a cantilever bracket, and a power component 10 is provided in the rear cavity of the housing 11. The power component 10 drives the rotating component 14 to rotate, thereby causing the scraping assembly 13 to contact or separate from the cleaning component 12. The rotating component 14 has an arc-shaped structure, and its top is spaced apart from the scraping assembly 13. The floor brush 1 also includes a drive linkage 9 rotatably connected to the housing 11. One end of the drive linkage 9 is located between the rotating component 14 and the scraping assembly 13, and the other end is connected to the heating assembly 8 via a movable connection structure. When the power component 10 drives the rotating component 14 to rotate and causes the scraping assembly 13 to separate from the cleaning component 12, the rotating component 14 acts on the drive linkage 9 and causes the drive linkage 9 to rotate, thereby lifting the heating assembly 8 to separate it from the cleaning component 12.

[0060] The lower housing 112 has a frame-shaped mounting groove on the front side. The suction port 15 is located in the central area of ​​the lower housing 112 and below the frame-shaped mounting groove. The liquid distribution component 16 and the scraping component 13 are arranged in sequence 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 15. The upper housing 111 extends forward beyond the upper port of the lower housing 112 to form an extension of the water tank 110.

[0061] The water tank 110 in the liquid supply system includes a first region 1101 located at the top of the mounting cavity and a second region 1102 located at the front of the mounting cavity. The portion of the bottom wall of the water tank 110 corresponding to the first region 1101 is flush with the upper surface of the cleaning component 12, and the portion of the bottom wall of the water tank 110 corresponding to the second region 1102 is flush with the upper surface of the mounting cavity. Since the mounting cavity is located above the cleaning component 12, the bottom of the first region 1101 is lower than the bottom of the second region 1102. The bottom wall of the water tank 110 extends vertically at the connection between the first region 1101 and the second region 1102.

[0062] In this embodiment, the cleaning component 12 is as follows: Figure 2 , Figure 4 The tracked cleaning component 12 shown includes a front roller, a rear roller 121, and a cleaning cloth sleeved on the front roller and the rear roller 121. The outer surface of the cleaning cloth has tufts. This embodiment uses the tracked cleaning component 12 as an example for explanation. The scraping component 13 acts on the rear roller 121 of the cleaning component 12, and the heating component 8 is attached to the top of the rear roller 121 of the cleaning component 12.

[0063] Preferably, the sealing element 2 is a rubber component made of rubber material. When the rotating element 14 drives the scraping assembly 13 from a position of contact with the cleaning element 12 to a position of separation from the cleaning element 12, the sealing body 21 gradually adheres to the rotating element 14 from the side closest to the housing 11 to the side furthest from the housing 11. In this way, dirt adhering to the outer surface of the rotating element 14 can be gradually squeezed outwards, achieving the effect of cleaning the dirt on the outer surface of the rotating element 14.

[0064] The scraping component 13 can contact or separate from the cleaning component 12 as needed. For example, when the cleaning component 12 is cleaning the surface to be cleaned, hair, threads, and other easily entangled dirt may adhere to its outer surface, affecting the cleaning effect. The scraping component 13 can then contact the cleaning component 12 and scrape off the dirt adhering to it. After being peeled off, the dirt may accumulate at the interface between the scraping component 13 and the cleaning component 12. At this point, the rotating component 14 can move the scraping component 13 to separate it from the cleaning component 12, providing space for the dirt to fall and detach. The dirt falls through the gap between the scraping component 13 and the cleaning component 12 and is then sucked up by the suction port 15. Furthermore, a sealing component 2 is provided between the rotating component 14 and the housing 11 to reliably seal the gap between them, reducing the probability of wastewater entering the housing 11 through this gap. Furthermore, the cooperation between the sealing body 21 and the flexible deformation part 22 allows the sealing element 2 to undergo flexible deformation according to the position of the rotating part 14, ensuring that the sealing element 2 seals and stops the gap between the rotating part 14 and the housing 11 during the rotation of the rotating part 14.

[0065] Furthermore, when the scraping assembly 13 is in the first position separated from the cleaning component 12, the stopping area of ​​the scraping assembly 13 on the cleaning component 12 is reduced, and the amount of sewage thrown from the cleaning component 12 towards the rotating component 14 and the housing 11 increases. At this time, the sealing body 21 is at least partially in contact with the rotating component 14, which on the one hand increases the sealing tightness between the sealing component 2 and the rotating component 14, and further reduces the probability of sewage breaking through the connection gap between the sealing component 2 and the housing 11 and the rotating component 14 and entering the interior of the housing 11; on the other hand, when the scraping assembly 13 moves to the first position, since the scraping assembly 13 and the rotating component 14 are close to the housing 11, the space left for the sealing component 2 is reduced. At this time, the sealing component 2 is at least partially in contact with the rotating component 14, which can occupy less space between the rotating component 14 and the housing 11, and reduce the probability of the sealing component 2 being damaged by the rotation and squeezing of the rotating component 14.

[0066] As a preferred embodiment of this example, Figure 3 As shown, the thickness of the flexible deformable part 22 is less than the thickness of the sealing body 21.

[0067] Specifically, the flexible deformable part 22 is integrally formed with the sealing body 21, and the sealing body 21 includes a body area and a connecting area. The body area has a uniform thickness, and the thickness of the connecting area gradually increases from the side connected to the flexible deformable part 22 toward the body area. The flexible deformable part 22 and the sealing body 21 are flush with the side surfaces facing the rotating member 14, so that when the scraping assembly 13 is in the first position, both the flexible deformable part 22 and the sealing body 21 can fit against the lower surface of the rotating member 14 to a high degree.

[0068] When the scraping assembly 13 moves from the second position, which is in contact with the cleaning component 12, to the first position, which is separated from the cleaning component 12, the rotating component 14 applies pressure to the sealing component 2. The flexible deformable part 22, being thinner, can deform quickly, causing the connected sealing body 21 to rotate, thus quickly adhering to the lower surface of the rotating component 14. The sealing body 21, being thicker, provides stable support for the flexible deformable part 22 when it needs to return to its original shape after the scraping assembly 13 separates from the cleaning component 12 and the rotating component 14 rotates to a certain angle, ensuring the sealing component 2 quickly returns to its original position. Simultaneously, this thickness difference design allows the sealing component 2 to flexibly adapt to different sealing angles during the rotation of the rotating component 14, while also ensuring structural integrity after long-term use, greatly improving the service life and operational reliability of the surface cleaning equipment.

[0069] As another preferred embodiment of this example, Figure 3As shown, the floor brush 1 also includes a rotating component 14 that drives the scraping assembly 13 to rotate, the sealing component 2 includes a first connecting part 23 that is fixedly connected to the housing 11 and the sealing body 21 respectively, and a second connecting part 24 that is fixedly connected to the rotating component 14 and the sealing body 21, and the flexible deformation part 22 includes a first flexible body 221 disposed on the first connecting part 23 and the sealing body 21.

[0070] The first connecting portion 23 and the second connecting portion 24 of the seal 2 fix the sealing body 21 to the housing 11 and the rotating member 14, respectively. Simultaneously, the first flexible body 221 provides a reliable deformation path for the deformation of the sealing body 21. When the scraping assembly 13 contacts the cleaning member 12, the rotating member 14 rotates forward, and the second connecting portion 24 drives the sealing body 21 to move accordingly. The first flexible body 221 undergoes stretching deformation due to its flexibility, ensuring that the seal 2 quickly adapts to the working state of the rotating member 14. When the scraping assembly 13 separates from the cleaning member 12, the rotating member 14 rotates backward, the first connecting portion 23 fixes one end of the sealing body 21, and the first flexible body 221 contracts and deforms, ensuring that the sealing body 21 always remains in contact with the rotating member 14, effectively preventing sewage from entering the housing 11 through the gap. For example, when cleaning water from a bathroom floor, the cleaning member 12 rotates rapidly, splashing up a large number of water droplets. At this time, the first flexible body 221 compresses and deforms, allowing the sealing body 21 to tightly fit the rotating member 14, preventing water droplets from seeping into the circuit components inside the housing 11.

[0071] The cooperation between the first connecting part 23, the second connecting part 24 and the first flexible body 221 allows the sealing element 2 to work stably in various rotation states of the rotating part 14, which not only ensures the reliability of the seal, but also does not restrict the normal rotation of the rotating part 14, significantly improving the cleaning efficiency and stability of the equipment.

[0072] As a preferred example of this implementation, such as Figure 3 , Figure 5 As shown, the first flexible body 221 is disposed at the connection between the sealing body 21 and the first connecting part 23.

[0073] In this example, the first flexible body 221 is located in the middle of the sealing body 21 and the first connecting part 23, and the first flexible body 221 is integrally formed with the sealing body 21 and the first connecting part 23 respectively. The first flexible body 221 and the first connecting part 23 are arc-shaped transitions on the side away from the rotating member 14.

[0074] In different surface cleaning scenarios, the rotation angle and frequency of the rotating component 14 vary, which requires the first flexible body 221 of the sealing component 2 to adapt flexibly according to the actual situation. The first flexible body 221 is located at the connection between the sealing body 21 and the first connecting part 23. During the rotation of the rotating component 14, which drives the scraping component 13 to move, the first flexible body 221 at the connection can effectively reduce the possibility of stress concentration between the sealing body 21 and the first connecting part 23. For example, when cleaning a heavily soiled surface, because there is a lot of dirt adhering to the cleaning component 12, the scraping component 13 needs to frequently come into contact with and separate from the cleaning component 12 to achieve rapid removal of dirt. As the rotating component 14 rotates frequently, the first flexible body 221 at the connection between the first connecting part 23 and the sealing body 21 can quickly adapt to the rotation state of the rotating component 14 by flexibly deforming, reducing the probability of damage to the sealing body 21 and the first connecting part 23 due to frequent pulling, and extending the service life of the sealing component 2.

[0075] As a preferred approach in this example, such as Figure 3 As shown, the rotating component 14 drives the scraping assembly 13 to move to the first position, the first flexible body 221 retracts and deforms, and the part of the sealing body 21 near the first connecting part 23 seals and fits against the lower surface of the rotating component 14.

[0076] Since the thickness of the first flexible body 221 is less than the thickness of the sealing body 21, when the rotating member 14 drives the scraping assembly 13 to rotate, the first flexible body 221 is more likely to bend, thereby causing the sealing body 21 to bend and rotate at the connection section with the first flexible body 221. Furthermore, the first flexible body 221 retracts, causing the sealing body 21 to rotate towards the rotating member 14 and fit against the lower surface of the rotating member 14.

[0077] When the surface cleaning equipment is in operation, when the scraping assembly 13 is in the first position separated from the cleaning component 12, the dirt on the cleaning component 12 loses the resistance of the scraping assembly 13 and is easily thrown towards the rotating component 14 and the housing 11, making the sealing particularly important. The first flexible body 221 deforms inward, and the part of the sealing body 21 near the first connecting part 23 seals against the lower surface of the rotating component 14. On the one hand, the inward deformation of the first flexible body 221 allows the sealing body 21 to fit more tightly against the lower surface of the rotating component 14, effectively preventing dirt from entering the housing 11 and reducing the probability of contamination and damage to the internal parts of the equipment, greatly enhancing the sealing effect. On the other hand, this fitting method makes reasonable use of the limited space between the rotating component 14 and the housing 11. When the scraping assembly 13 is in the first position, the distance between the rotating component 14 and the housing 11 is relatively close, leaving little space for the sealing component 2. After the first flexible body 221 deforms inward, the sealing body 21 fits tightly against the rotating component 14 and will not be squeezed by the rotating component 14 due to occupying too much space. For example, after cleaning the floor, the scraper assembly 13 is in the first position. At this time, the rotating part 14 is close to the housing 11, and the sealed body 21 in a close fit is not damaged by compression, ensuring the sealing performance for the next use. At the same time, the sealing fit between the sealed body 21 and the lower surface of the rotating part 14 can also guide the dirt thrown into the gap to slide down the outer surface of the first flexible body 221 and finally be sucked up by the suction port 15, improving the cleaning efficiency of dirt and preventing dirt from accumulating in the gap and affecting the normal operation of the equipment.

[0078] Furthermore, such as Figure 5 As shown, the rotating component 14 drives the scraping assembly 13 to move to the second position where it contacts the cleaning component 12. The other end of the second connecting part 24 is connected to the sealing body 21. The sealing body 21 extends forward following the second connecting part 24 so that the first flexible body 221 is stretched and expanded.

[0079] Specifically, when the rotating component 14 is in the separated position, the first flexible body 221 is deformed inward. At this time, there is a first bending angle between the first flexible body 221 and the first connecting part 23. As the rotating component 14 drives the scraping assembly 13 to switch to the second position, the first flexible body 221 is stretched, and the first bending angle gradually increases. The sealing body 21 rotates forward with the connection point with the first flexible body 221 as the rotation point, thereby realizing the forward extension of the sealing body 21.

[0080] The forward extension of the sealing body 21 does not obstruct the action of the scraping assembly 13. The stretching and expansion of the first flexible body 221 has a certain elasticity, which can adapt to the extension length of the sealing body 21. When the scraping assembly 13 is subjected to the force transmitted by the rotation of the cleaning component 12 and transmits the force to the rotating component 14, the sealing body 21 can effectively seal without affecting the pressure transmission of the scraping assembly 13 due to excessive tension. In addition, when the scraping assembly 13 separates from the cleaning component 12 again after scraping, the first flexible body 221 can quickly recover from the stretched and expanded state, driving the sealing body 21 to return to its original position quickly, providing a sealing basis for the reciprocating motion of the rotating component 14 and ensuring the continuity of equipment operation.

[0081] Furthermore, when the scraping component 13 is in the first position, the angle between the extension line of the sealing body 21 and the first connecting part 23 is α1, where α1 ≤ 45°; when the scraping component 13 is in the second position, the angle between the extension line of the sealing body 21 and the first connecting part 23 is α2, where α2 ≤ 120°.

[0082] When the scraping assembly 13 is in the first position, the angle α1 between the extension line of the sealing body 21 and the first connecting part 23 is ≤45°. At this time, the scraping assembly 13 is separated from the cleaning component 12, and the rotating component 14 is close to the housing 11. The smaller angle allows the sealing body 21 to be closer to the rotating component 14, making full use of the limited space to achieve a tight seal. For example, when the equipment is in standby or moving, the scraping assembly 13 is in the first position, and the angle α1≤45° increases the contact area between the sealing body 21 and the rotating component 14, effectively preventing external dust and debris from entering the gap between the rotating component 14 and the housing 11. Even if a small amount of dirt is thrown into the gap due to the rotation of the cleaning component 12, it will be blocked by the tightly fitted sealing body 21, reducing the risk of dirt entering the interior of the housing 11.

[0083] When the scraping assembly 13 is in the second position, the angle α2 between the extension line of the sealing body 21 and the first connecting part 23 is ≤120°. At this time, the scraping assembly 13 abuts against the cleaning part 12, and the rotating part 14 rotates to increase the gap. The larger angle provides sufficient extension space for the sealing body 21, ensuring that the sealing body 21 effectively covers the enlarged gap. For example, when cleaning large areas of water stains, the scraping assembly 13 is in the second position, and the angle α2≤120° allows the sealing body 21 to extend forward fully. After the first flexible body 221 is stretched and expanded, it can still maintain good sealing performance, preventing a large amount of water stains from seeping into the interior of the housing 11 from the gap, thus protecting the electronic components and transmission parts inside the equipment.

[0084] Meanwhile, the limitation of these two included angles prevents excessive deformation of the sealing body 21 and the first flexible body 221. α1≤45° reduces the probability of the sealing body 21 being excessively compressed due to an excessively small included angle in the first position, and α2≤120° reduces the probability of the first flexible body 221 being excessively stretched and damaged due to an excessively large included angle in the second position. For example, during long-term use, frequent angle changes exceeding the limits can cause fatigue damage to the seal 2, while the setting of these two included angles effectively extends the service life of the seal 2, ensuring the long-term stable operation of the equipment.

[0085] As a preferred embodiment of this example, Figure 2 , Figure 4 As shown, the top of the scraping assembly 13 is provided with an upwardly extending sealing flange 130, and the bottom of the liquid distribution component 16 is provided with a flexible sealing component 120. A sealing groove 140 is formed between the flexible sealing component 120 and the interior of the liquid distribution component 16. Regardless of whether the scraping assembly 13 is in the first position, the second position, or between the first and second positions, the sealing flange 130 is located in the sealing groove 140, and the flexible sealing component 120 abuts against the sealing flange 130.

[0086] In this embodiment, the placement of the first flexible body 221 is not limited. In another embodiment, the first flexible body 221 is disposed at the end of the first connecting portion 23, and the thickness of the connection between the first flexible body 221 and the sealing body 21 gradually increases from the side closer to the first flexible body 221 to the side closer to the sealing body 21. In yet another embodiment, the first flexible body 221 is disposed at the end of the sealing body 21, and the thickness of the connection between the first flexible body 221 and the first connecting portion 23 gradually increases from the side closer to the first flexible body 221 to the side closer to the sealing body 21.

[0087] Example 2:

[0088] like Figures 7 to 10 As shown, the flexible deformation part 22 also includes a second flexible body 222 disposed on the second connecting part 24 and the sealing body 21. The rotating member 14 drives the scraping assembly 13 to move to the first position. The second connecting part 24 moves with the rotating member 14 to the rear side of the second flexible body 222. The second flexible body 222 expands and deforms outward. The sealing body 21 is at least partially attached to the lower surface of the rotating member 14.

[0089] The second connecting part 24, the second flexible body 222 and the sealing body 21 are constructed as an integrally molded rubber part.

[0090] Specifically, the front end of the lower housing 112 is provided with a first protruding insertion protrusion 3, and the end of the first connecting part 23 is provided with a first insertion groove 4 that is adapted to the first insertion protrusion 3. The first insertion protrusion 3 is located in the first insertion groove 4, and the first connecting part 23 is connected to the housing 11 by means of adhesive coating. The lower end of the rotating part 14 and the rear end of the scraping assembly 13 are respectively provided with second insertion protrusions 5. The two ends of the second connecting part 24 are respectively provided with second insertion grooves 6 that are adapted to the second insertion protrusions 5. The second insertion protrusions 5 are located in the second insertion grooves 6, and the second connecting part 24 is connected to the rotating part 14 and the scraping assembly 13 by means of adhesive coating.

[0091] The second flexible body 222, acting as the sealing element 2, adds another layer of flexible sealing protection. When cleaning the surface to be cleaned or when the surface cleaning device is in self-cleaning mode, even when the scraping assembly 13 separates from the cleaning element 12, the cleaning element 12 continues to rotate at high speed, throwing some small dirt and sewage into the gap between the rotating element 14 and the housing 11. The outward deformation of the second flexible body 222 allows for a tighter fit between the sealing body 21 and the lower surface of the rotating element 14, increasing the sealing area and effectively blocking these small dirt and sewage. Simultaneously, the outward deformation of the second flexible body 222 can adapt to the shape of the rotating element 14 in the first position. When the rotating element 14 drives the scraping assembly 13 to the first position, its position and angle change, and the second connecting part 24 moves to the rear side of the second flexible body 222. The outwardly expanding second flexible body 222 compensates for the gap difference caused by the change in the position of the rotating element 14 through its own deformation, ensuring that the sealing body 21 always remains at least partially in contact with the lower surface of the rotating element 14. The cooperation between the second flexible body 222 and the first flexible body 221 forms a double sealing guarantee. No matter what angle and position change the rotating part 14 has in the first position, a reliable seal can be achieved through the coordinated deformation of the two, which greatly improves the sealing reliability of the equipment.

[0092] As a preferred embodiment of this example, Figure 9 , Figure 10 As shown, the rotating component 14 drives the scraping assembly 13 to move to the second position, and the second flexible body 222 moves with the second connecting part 24 to the front side of the sealing body 21 so that the second flexible body 222 retracts and deforms.

[0093] During the process of the scraping assembly 13 scraping away dirt from the cleaning component 12, the rotating cleaning component 12 transmits frictional and contact forces to the scraping assembly 13, which are then transmitted to the sealing component 2 via the rotating component 14. The inward deformation of the second flexible body 222 allows the sealing body 21 to more closely follow the positional changes of the rotating component 14, ensuring a sealing effect. At the same time, the inward deformation of the second flexible body 222 gives it a certain degree of elasticity in the contracted state, providing appropriate tension to the sealing body 21. This prevents the sealing body 21 from becoming excessively tight while moving with the rotating component 14, ensuring the installation stability of the sealing component 2.

[0094] In addition, when the scraping assembly 13 returns from the second position to the first position, the second flexible body 222 can quickly recover from the retracted state. In conjunction with the movement of the second connecting part 24, it drives the sealing body 21 to adjust its position, ensuring the sealing continuity of the equipment when switching between different working states.

[0095] Furthermore, such as Figures 7 to 10 As shown, the second flexible body 222 is disposed at the connection between the sealing body 21 and the second connecting part 24.

[0096] In this embodiment, the second flexible body 222 is located at the middle position between the sealing body 21 and the second connecting part 24, and the second flexible body 222 is integrally formed with the flexible body and the second connecting part 24 respectively. The second flexible body 222 and the second connecting part 24 are arc-shaped transitions on the side away from the rotating member 14, and the second flexible body 222 and the sealing body 21 are arc-shaped transitions on the side away from the rotating member 14.

[0097] The versatility of the placement of the second flexible body 222 allows the seal 2 to adapt to the structure and operational requirements of different surface cleaning equipment, ensuring a good sealing effect in various working scenarios. During the movement of the second connecting part 24 driven by the rotating part 14, the second flexible body 222 at the connection reduces the stress between the sealing body 21 and the second connecting part 24. For example, when the surface to be cleaned is dirty, the rotating part 14 needs to rotate back and forth, and the sealing body 21 moves frequently. The second flexible body 222 at the connection, through flexible deformation, reduces the probability of breakage between the sealing body 21 and the second connecting part 24 due to frequent pulling, thus extending the service life of the seal 2.

[0098] In this embodiment, the placement of the second flexible body 222 is not limited. In another embodiment, the second flexible body 222 is disposed at the end of the second connecting portion 24, and the thickness of the connection between the second flexible body 222 and the sealing body 21 gradually increases from the side closer to the second flexible body 222 to the side closer to the sealing body 21. In yet another embodiment, the second flexible body 222 is disposed at the end of the sealing body 21, and the thickness of the connection between the second flexible body 222 and the second connecting portion 24 gradually increases from the side closer to the second flexible body 222 to the side closer to the sealing body 21.

[0099] Example 3:

[0100] The difference between this embodiment and Embodiment 1 lies in the structural form of the flexible seal 120.

[0101] Unlike the embodiment 1 where a sealing flange 130 is provided on the top of the scraping assembly 13, in this embodiment, the flexible seal 120 is fixedly connected to the liquid distribution component 16 and the scraping assembly 13 by adhesive coating, as shown below. Figures 11 to 14 As shown, the flexible seal 120 includes a body region 1201, a first deformable portion 1202 located between the body region 1201 and the liquid distribution member 16, and a second deformable portion 1203 located between the body region 1201 and the scraping assembly 13. A third deformable portion 1204 is also provided in the middle of the body region 1201. The thickness of the first deformable portion 1202, the second deformable portion 1203, and the third deformable portion 1204 is all less than the thickness of the body region 1201. When the scraping assembly 13 moves from the first position to the second position, the first deformable portion 1202 and the second deformable portion 1203 bend, and the third deformable portion 1204 retracts to make the flexible seal 120 bend inward. The body region 1201 between the second deformable portion 1203 and the third deformable portion 1204 is close to the upper surface of the scraping assembly 13.

[0102] exist Figure 11 and Figure 12 In the middle, the scraping component is in contact with the cleaning component, at which point the flexible seal 120 bends inward. Figure 13 and Figure 14In this configuration, the scraping assembly is separated from the cleaning component 12, at which point the flexible seal 120 is stretched as the scraping assembly moves. During this movement, the flexible seal 120 continuously switches between stretching and bending, effectively loosening and removing dirt splashed onto its outer surface during cleaning. Furthermore, the outer surface of the cleaning component 12 typically has tufts of hair. These tufts, soaked in cleaning fluid, stand upright as the cleaning component 12 rotates. When the flexible seal 120 is stretched, the distance between it and the outer surface of the cleaning component 12 decreases. When the tufts on the outer surface of the cleaning component 12 are long enough, they can effectively clean dirt splashed onto the flexible seal 120, thus achieving a self-cleaning effect.

[0103] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0104] 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.

[0105] 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 with a cleaning element, the floor brush including a housing, a scraping assembly mounted on the housing, and a driving device, the driving device driving the scraping assembly to rotate so that the scraping assembly abuts against or separates from the cleaning element, characterized in that, A deformable seal is provided between the scraping assembly and the housing. The seal includes a sealing body and at least one flexible deformable portion. The flexible deformable portion deforms when the scraping assembly rotates to a first position where it is separated from the cleaning component, so that the sealing body at least partially conforms to the scraping assembly.

2. The surface cleaning device according to claim 1, characterized in that, The thickness of the flexible deformable part is less than the thickness of the sealing body.

3. The surface cleaning device according to claim 1, characterized in that, The floor brush also includes a rotating component that drives the scraping assembly to rotate. The sealing component includes a first connecting portion that is fixedly connected to the housing and the sealing body, and a second connecting portion that is fixedly connected to the rotating component and the sealing body. The flexible deformation portion includes a first flexible body disposed on the first connecting portion and / or the sealing body.

4. The surface cleaning device according to claim 3, characterized in that, The first flexible body is disposed at the connection between the sealing body and the first connecting portion; or, the first flexible body is disposed at the end of the sealing body; or, the first flexible body is disposed at the end of the first connecting portion.

5. The surface cleaning device according to claim 4, characterized in that, The rotating component drives the scraping assembly to a first position, whereby the first flexible body retracts and deforms, and the portion of the sealing body near the first connecting part seals and adheres to the lower surface of the rotating component.

6. The surface cleaning device according to claim 5, characterized in that, The rotating component drives the scraping assembly to move to a second position that contacts the cleaning component. The other end of the second connecting part is connected to the sealing body. The sealing body extends forward following the second connecting part to stretch and expand the first flexible body.

7. The surface cleaning device according to claim 6, characterized in that, The scraping component is located in the first position, and the angle between the extension line of the sealing body and the first connecting part is α1, where α1 ≤ 45°; the scraping component is located in the second position, and the angle between the extension line of the sealing body and the first connecting part is α2, where α2 ≤ 120°.

8. The surface cleaning device according to claim 3, characterized in that, The flexible deformation portion further includes a second flexible body disposed on the second connecting portion and / or the sealing body. The rotating member drives the scraping assembly to move to the first position. The second connecting portion moves with the rotating member to the rear side of the second flexible body. The second flexible body expands and deforms. The sealing body is at least partially attached to the lower surface of the rotating member.

9. The surface cleaning device according to claim 8, characterized in that, The rotating component drives the scraping assembly to the second position, and the second flexible body moves with the second connecting part to the front side of the sealing body so that the second flexible body retracts and deforms.

10. The surface cleaning apparatus according to claim 9, characterized in that, The second flexible body is disposed at the connection between the sealing body and the second connecting part; or, the second flexible body is disposed at the end of the sealing body; or, the second flexible body is disposed at the end of the second connecting part.

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