Surface cleaning device with supporting wheels

Abstract

The surface cleaning device comprises a cleaning machine and a base used for containing the cleaning machine, the cleaning machine comprises a floor brush and a machine body connected with the floor brush in a pivoted mode, the floor brush comprises a floor brush shell, a cleaning roller and the supporting wheels, and the cleaning roller and the supporting wheels are arranged on the floor brush shell. The base is provided with a first cleaning tank used for containing the cleaning roller and a second cleaning tank used for containing the supporting wheel, the base is further provided with a liquid flow channel communicating with the first cleaning tank and the second cleaning tank, and the liquid flow channel is obliquely arranged. According to the surface cleaning device, the first cleaning tank and the second cleaning tank are arranged in a connectivity manner, so that the source of the cleaning liquid has diversified design and selection, the machine type design of the surface cleaning device is expanded, the water storage efficiency and the cleaning efficiency are improved, and the cleaning liquid can be reused; in other words, one of the cleaning roller and the supporting wheel is firstly cleaned, the other one of the cleaning roller and the supporting wheel is then cleaned, and the cleaning liquid for later cleaning is the cleaning liquid which is firstly cleaned, so that the cleaning liquid is saved, and the cleaning cost is reduced.

Description

Technical Field

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

[0002] Surface cleaning devices typically consist of a rotating cleaning component that wipes the surface to be cleaned and support wheels located behind the cleaning component to support the device. During cleaning operations, the support wheels accumulate dust and dirt from the cleaning environment. As dirt accumulates on the support wheels, it not only reduces friction, decreasing their ability to assist in movement and increasing resistance or causing slippage during operation, but also leads to secondary contamination of the surface to be cleaned. Therefore, users need to clean the support wheels regularly. In existing technologies, the base of the surface cleaning device does not have a separate structure for cleaning the support wheels, requiring manual cleaning, which increases the user's cleaning burden and yields less than ideal cleaning results.

[0003] In existing technologies, surface cleaning devices are typically housed in a base, which usually has grooves for housing the support wheels. The support wheels rotate within these grooves, scraping dirt into them. To collect the dirt from the support wheel grooves, they are usually connected to a cleaning tank that holds the cleaning components. The suction force generated by the surface cleaning device's motor then collects the dirt into the device's wastewater tank. However, because the support wheels and cleaning components are located on opposite sides of the floor brush with a large gap, the suction power of the motor is limited, making it difficult for dirt in the support wheel grooves to be collected through the cleaning tank. Furthermore, relying solely on dry scraping of the support wheels is insufficient for effective cleaning and can lead to dirt adhering to the cleaning surface, causing secondary contamination of the remaining parts of the rollers. The cleaning effect is not as expected, and when the cleaning equipment is returned to the ground for further cleaning, slippage may occur, potentially causing re-contamination of the environment. Utility Model Content

[0004] This application provides a surface cleaning device with a support wheel to solve the technical problem that existing surface cleaning devices use dry scraping to clean the support wheel, resulting in poor cleaning effect and easy secondary pollution to the cleaning environment.

[0005] The technical solution adopted in this application is as follows:

[0006] A surface cleaning device with a support wheel includes a cleaning machine and a base for placing the cleaning machine. The cleaning machine includes a floor brush and a body pivotally connected to the floor brush. The floor brush includes a floor brush housing and a cleaning roller and a support wheel disposed on the floor brush housing. The base is provided with a first cleaning groove for accommodating the cleaning roller and a second cleaning groove for accommodating the support wheel. The base is also provided with a liquid flow channel connecting the first cleaning groove and the second cleaning groove, and the liquid flow channel is inclined.

[0007] The base of this application is provided with a second cleaning tank for accommodating the support wheel. When the cleaning machine is placed on the base, the support wheel of the cleaning machine can be placed into the second cleaning tank. The cleaning liquid in the second cleaning tank is used to achieve wet cleaning of the support wheel. Therefore, even if the support wheel is covered with oil, sticky substances and other dirt, the grease, dust and other dirt on the surface of the support wheel can be removed more effectively by rinsing with the cleaning liquid. Moreover, compared with the dry scraping method in the prior art, the wet cleaning method of this application for the support wheel can also reduce dust during the cleaning process and avoid secondary pollution to the surrounding environment.

[0008] Unlike the hard surface of the support roller, the outer circumference of the cleaning roller is wrapped with a cleaning cloth containing several tufts of fibers. During the cleaning process, the cleaning cloth and its surface tufts accumulate more dirt. The base of this application also includes a first cleaning tank for accommodating the cleaning roller. This first cleaning tank enables automatic cleaning of the cleaning roller, reducing the labor intensity and time required for manual cleaning and improving cleaning efficiency.

[0009] The base of this application is also provided with a liquid flow channel connecting the first cleaning tank and the second cleaning tank. This liquid flow channel enables fluid communication between the first and second cleaning tanks. The connectivity between the first and second cleaning tanks is configured in two ways: In one embodiment, it allows for diverse design and selection of the cleaning liquid source, expanding the design possibilities of the surface cleaning device and improving water storage efficiency, thereby increasing cleaning efficiency; In another embodiment, it enables the reuse of the cleaning liquid, i.e., one of the cleaning rollers and the support wheel is cleaned first, and the other is cleaned later, with the cleaning liquid for the later cleaning using the cleaning liquid from the earlier cleaning, thus saving cleaning liquid and reducing cleaning costs. Furthermore, the connectivity between the first and second cleaning tanks allows them to use the same suction channel for drainage after cleaning, improving drainage efficiency and reducing the complexity of the drainage design.

[0010] Furthermore, the inclined arrangement of the liquid flow channel in this application enables fluid communication between the first cleaning tank and the second cleaning tank, allowing the cleaning liquid to switch between the first and second cleaning tanks by its own gravity, thereby accelerating the flow speed of the cleaning liquid and improving cleaning efficiency.

[0011] The liquid flow channel is movably disposed on the base to have a first state and a second state; in the second state, the liquid flow channel is tilted so that one of the first cleaning tank and the second cleaning tank is at a low position of the liquid flow channel and the other is at a high position of the liquid flow channel, and the first cleaning tank and the second cleaning tank are in fluid communication through the liquid flow channel.

[0012] Compared to methods that fix the liquid flow channel in a tilted state, in this technical solution, the liquid flow channel is movably mounted on the base, allowing it to have a first state and a second state. The liquid flow channel can only tilt when it is in the second state, enabling fluid communication between the first and second cleaning tanks. This configuration allows the surface cleaning device to operate more stably. For example, when the liquid flow channel is in the first state, it can achieve stable cleaning of the cleaning rollers and / or support wheels, preventing cross-contamination, or stable water storage in the first or second cleaning tank. When the liquid flow channel switches from the first state to the second state, it can achieve rapid flow of the cleaning liquid, whether by moving the cleaning liquid from one of the first and second cleaning tanks to the other, or by converging the cleaning liquid uniformly into the suction channel, thereby improving cleaning efficiency.

[0013] The base is provided with a driving device and a trigger connected to the driving device. When the trigger is triggered, the driving device drives the fluid channel to switch between the first state and the second state.

[0014] This technical solution, by setting a drive device and a trigger connected to the drive device on the base, can give a signal to the drive device according to the trigger state of the trigger, and drive the liquid flow channel to switch between the first state and the second state, thereby realizing the automated control of the liquid flow channel state switching, realizing the automated and intelligent control of the entire self-cleaning operation process, greatly freeing up manpower and improving the user experience.

[0015] The cleaning roller is movable back and forth on the floor brush housing to have a first position away from the front side of the base and a second position close to the front side of the base; when the cleaning roller is in the second position, the trigger is activated.

[0016] The cleaning roller is movable back and forth within the brush housing. During cleaning operations, this movable design changes the distance between the cleaning roller and the scraping components. When hair, thread, or other easily entangled materials are wrapped around the cleaning roller and / or scraping components, this change in distance loosens or breaks the entanglement, allowing for untangling. The suction from the suction port at the bottom of the brush housing then collects the entangled material. Furthermore, the back-and-forth movement of the cleaning roller can also rub hair and other easily entangled materials on its surface into clumps for easier removal. During self-cleaning operations, the back-and-forth movement of the cleaning roller triggers a mechanism, which in turn signals the drive unit to control the fluid flow channel, switching states and thus improving the automation of the self-cleaning process.

[0017] The support wheel is movable back and forth on the floor brush housing to have a third position away from the cleaning roller and a fourth position close to the cleaning roller; when the support wheel is in the fourth position, the trigger is activated; or, the support wheel is vertically movable on the floor brush housing to have a fifth position close to the bottom wall of the second cleaning tank and a sixth position away from the bottom wall of the second cleaning tank; when the support wheel is in the fifth position, the trigger is activated.

[0018] The support wheels are movably mounted on the brush housing, either forward or backward, or vertically, allowing for adjustments to the distance between the squeegee blades at the bottom of the brush housing and the surface to be cleaned. This improves the adaptability of the cleaning machine to the cleaning area during its movement. For example, when the machine moves forward, changing the position of the support wheels on the brush housing reduces the distance between the squeegee blades and the surface, allowing the suction port to pick up dirt in front of the squeegee blades. Conversely, when the machine moves backward, changing the position of the support wheels increases the distance, allowing the suction port to pick up dirt behind the squeegee blades and reducing friction during retraction, facilitating the backward movement. During self-cleaning, the positional changes of the support wheels trigger the actuator, sending a signal to the drive unit to control the fluid flow channel and switch states, thus enhancing the automation of the self-cleaning process.

[0019] The base has a base and a top cover. The top cover is pivotally connected to the base via a rotating shaft. The first cleaning tank, the second cleaning tank, and the liquid flow channel are all located on the top cover. The cleaning roller is movably disposed on the floor brush housing to move closer to or further away from the rotating shaft, thereby switching the liquid flow channel between the first state and the second state. And / or, the support wheel is movably disposed on the floor brush housing to move closer to or further away from the rotating shaft, thereby switching the liquid flow channel between the first state and the second state.

[0020] In this technical solution, the first cleaning tank, the second cleaning tank, and the liquid flow channel are all located on the top cover. The top cover is pivotally connected to the base via a rotating shaft. This pivotal connection provides a technical basis for the non-powered state switching of the liquid flow channel. Utilizing the lever principle, when the weight on both sides of the rotating shaft is changed, the top cover can rotate around the shaft according to the weight change, thereby realizing the switching of the liquid flow channel between the first and second states. Therefore, the cleaning roller and / or support wheel are movably mounted on the floor brush housing. When the position of the cleaning roller and / or support wheel on the floor brush housing is changed to change the center of gravity of the cleaning machine, the top cover can rotate around the rotating shaft to synchronously drive the liquid flow channel to achieve state switching.

[0021] The base or the cleaning machine is provided with a liquid supply structure for supplying liquid to the second cleaning tank. The cleaning liquid flows from the liquid supply structure to the second cleaning tank, and flows from the second cleaning tank to the first cleaning tank when the liquid flow channel is tilted.

[0022] This technical solution achieves separate cleaning fluid supply to the second cleaning tank by setting a separate liquid supply structure on the base or cleaning machine. The support roller has a hard surface, and the outer circumference of the cleaning roller is wrapped with a cleaning cloth containing several tufts of hair. During the cleaning process, the cleaning cloth and its tufts will adhere to more dirt than the support roller. Therefore, the cleanliness of the cleaning fluid after cleaning the support roller is better than that after cleaning the cleaning roller. This technical solution allows the cleaning fluid in the second cleaning tank to flow to the first cleaning tank, enabling the reuse of the cleaning fluid in the second cleaning tank, avoiding waste and saving cleaning fluid. From another perspective, after use, the cleaning fluid is collected in a waste container or directly discharged to external channels such as floor drains. The reuse of cleaning fluid also reduces the volume requirement of the waste container, which is conducive to the miniaturization of the waste container design, reducing manufacturing costs and the storage space required for storing the waste container.

[0023] The surface cleaning device further includes a power source disposed on the cleaning machine and / or on the base, the power source being connected to the liquid flow channel.

[0024] This technical solution improves the efficiency of cleaning fluid delivery or discharge by installing a power source connected to the liquid flow channel in the cleaning machine and / or base. The power source can deliver cleaning fluid to the liquid flow channel or collect cleaning fluid from the liquid flow channel.

[0025] The support wheel includes a wheel body and a drive motor. The wheel body rotates under the drive motor to perform self-cleaning.

[0026] In this technical solution, the support wheel includes a wheel body and a drive motor, enabling the wheel body to rotate under the drive of the drive motor. The rotation of the wheel body provides assistance to the cleaning machine during the cleaning operation, making the movement of the cleaning machine smoother. During the self-cleaning operation, the rotation of the wheel body ensures that the wheel's traveling surface contacts the cleaning liquid in the second cleaning tank along its circumference, improving the thoroughness of the cleaning. Furthermore, the rotation of the wheel body agitates the cleaning liquid in the second cleaning tank, enhancing the cleaning effect on the wheel body.

[0027] The base is equipped with a cleaning component. When the cleaning machine is placed on the base, the cleaning component can abut against the support wheel to clean the support wheel.

[0028] By incorporating a cleaning component that can engage with the support wheel, the cleaning effect on the support wheel surface can be further enhanced during wet cleaning, especially for stubborn stains adhering to the support wheel surface. Attached Figure Description

[0029] 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:

[0030] Figure 1 This is a schematic diagram of the base structure according to one embodiment of this application;

[0031] Figure 2 This is a cross-sectional view of the base when the fluid flow channel is in the first state according to one embodiment of this application;

[0032] Figure 3 for Figure 2 Enlarged view of part A;

[0033] Figure 4 This is a cross-sectional view of the base when the fluid flow channel is in the second state according to one embodiment of this application;

[0034] Figure 5 for Figure 4 Enlarged view of part B;

[0035] Figure 6This is a cross-sectional view of the base and floor brush portion structure when the fluid flow channel is in the second state according to one embodiment of this application;

[0036] Figure 7 This is a cross-sectional view of the base and floor brush portion structure when the trigger is not triggered according to one embodiment of this application;

[0037] Figure 8 This is a cross-sectional view of the base and floor brush structure when the trigger is triggered according to one embodiment of this application.

[0038] in,

[0039] 1. Base; 11. Base plate; 12. Top cover; 13. First cleaning tank; 14. Second cleaning tank; 15. Liquid flow channel; 16. Rising stop; 17. Falling stop;

[0040] 2. Support wheels;

[0041] 3. Cleaning roller;

[0042] 4. Trigger;

[0043] 5. First motor;

[0044] 6. Support block;

[0045] 7. Sewage suction port. Detailed Implementation

[0046] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] like Figure 1 As shown, a surface cleaning device with a support wheel 2 includes a cleaning machine and a base 1 for placing the cleaning machine. The cleaning machine includes a floor brush and a body pivotally connected to the floor brush. The floor brush includes a floor brush housing and a cleaning roller 3 and a support wheel 2 disposed on the floor brush housing. The base 1 is provided with a first cleaning groove 13 for accommodating the cleaning roller 3 and a second cleaning groove 14 for accommodating the support wheel 2. The base 1 is also provided with a liquid flow channel 15 connecting the first cleaning groove 13 and the second cleaning groove 14. The liquid flow channel 15 is inclined.

[0052] The first cleaning tank 13 and the second cleaning tank 14 can remain connected, or have a connected state and a disconnected state. This application does not limit the timing of the fluid connection between the first cleaning tank 13 and the second cleaning tank 14. In one embodiment, the fluid connection between the first cleaning tank 13 and the second cleaning tank 14 exists in the initial stage of the self-cleaning operation. For example, the cleaning fluid can be stored in one of the first cleaning tank 13 and the second cleaning tank 14 first. When a certain amount is stored, the cleaning fluid can flow to the other one through the liquid flow channel 15 to achieve the fluid supply of the cleaning fluid. In another embodiment, the fluid connection between the first cleaning tank 13 and the second cleaning tank 14 exists in the sewage discharge stage of the self-cleaning operation. By making the first cleaning tank 13 and the second cleaning tank 14 fluidly connected, the cleaned sewage can be jointly sucked into the same suction channel, thereby simplifying the sewage discharge design of the base 1 and / or the cleaning machine.

[0053] The base 1 in this application is provided with a second cleaning tank 14 for accommodating the support wheel 2. When the cleaning machine is placed on the base 1, the support wheel 2 of the cleaning machine can be placed into the second cleaning tank 14. The cleaning liquid in the second cleaning tank 14 is used to achieve wet cleaning of the support wheel 2. Therefore, even when the support wheel 2 is covered with oil, sticky substances and other dirt, the grease, dust and other dirt on the surface of the support wheel 2 can be removed more effectively by rinsing with the cleaning liquid. Moreover, compared with the dry scraping method in the prior art, the wet cleaning method used in this application for the support wheel 2 can also reduce dust during the cleaning process and avoid secondary pollution to the surrounding environment.

[0054] Unlike the hard surface of the support wheel 2, the outer periphery of the cleaning roller 3 is wrapped with a cleaning cloth containing several tufts of fibers. During the cleaning process, the cleaning cloth and its surface tufts accumulate more dirt. The base 1 of this application is also provided with a first cleaning tank 13 for accommodating the cleaning roller 3. The cleaning roller 3 is automatically cleaned through the first cleaning tank 13, which not only reduces the labor intensity and time of manual cleaning but also improves cleaning efficiency.

[0055] The base 1 of this application is also provided with a liquid flow channel 15 connecting the first cleaning tank 13 and the second cleaning tank 14. The liquid flow channel 15 enables fluid communication between the first cleaning tank 13 and the second cleaning tank 14. The connection between the first cleaning tank 13 and the second cleaning tank 14 is configured such that, in one embodiment, wet cleaning of the cleaning roller 3 and the support wheel 2 can be achieved simultaneously by storing water in only one of the first cleaning tank 13 or the second cleaning tank 14. Similarly, the connected liquid flow channel 15 can not only transport clean cleaning liquid but also be used to transport wastewater after cleaning. The connected liquid flow channel 15 allows the wastewater collection structure to be set in either the first cleaning tank 13 or the second cleaning tank 14, so that wastewater collection in the first cleaning tank 13 and the second cleaning tank 14 can be achieved simultaneously. Therefore, designing a liquid flow channel connecting the first cleaning tank 13 and the second cleaning tank 14 allows for diverse designs and choices for the liquid supply and collection structures, expanding the design possibilities of surface cleaning devices, improving water storage efficiency, and thus enhancing cleaning efficiency. In another embodiment, the cleaning liquid can be reused, i.e., one of the cleaning rollers 3 and the support wheels 2 is cleaned first, and the other is cleaned later, with the cleaning liquid for the later cleaning source utilizing the cleaning liquid from the earlier cleaning, thereby saving cleaning liquid and reducing cleaning costs. Furthermore, the connectivity between the first cleaning tank 13 and the second cleaning tank 14 allows both to use the same suction channel for wastewater discharge after cleaning, improving wastewater discharge efficiency and reducing the complexity of the wastewater discharge design.

[0056] Furthermore, the inclined arrangement of the liquid flow channel 15 in this application enables fluid communication between the first cleaning tank 13 and the second cleaning tank 14, allowing the cleaning liquid to switch between the first cleaning tank 13 and the second cleaning tank 14 by its own gravity, thereby accelerating the flow speed of the cleaning liquid and improving cleaning efficiency.

[0057] The cleaning roller 3 in this application can be any wiping component that can be rotated to wipe the surface to be cleaned, such as a single cleaning roller, a double cleaning roller, or a tracked cleaning roller.

[0058] This application does not limit the type of cleaning liquid. It can be water, a mixture of water and cleaning agent, or a mixture of water, cleaning agent, disinfectant, etc.

[0059] Generally, two coaxial support wheels 2 are arranged side by side at the rear of the cleaning machine. However, this application does not limit the number of second cleaning tanks 14. In one embodiment, such as Figure 1As shown, the base 1 is provided with two second cleaning tanks 14, which are arranged side by side along the left-right direction of the base 1 and are not interconnected. Each second cleaning tank 14 accommodates one support wheel 2. Correspondingly, two liquid flow channels 15 are provided, and one second cleaning tank 14 is connected to the first cleaning tank 13 through its corresponding liquid flow channel 15. In another embodiment, the base is provided with one second cleaning tank, which extends along the left-right direction of the base to accommodate two support wheels simultaneously. Correspondingly, one liquid flow channel is provided, preferably connected to the middle area of ​​the second cleaning tank.

[0060] The inclined arrangement of the fluid flow channel 15 in this application can be achieved by any of the following embodiments:

[0061] Implementation Method 1: This implementation method is not illustrated. In this implementation method, the liquid flow channel is fixedly mounted on the base and is inclined from one end to the other. In one embodiment, the liquid flow channel is inclined from the end communicating with the second cleaning tank to the end communicating with the first cleaning tank. In another embodiment, the liquid flow channel is inclined from the end communicating with the first cleaning tank to the end communicating with the second cleaning tank.

[0062] Implementation Method Two: (e.g.) Figures 2 to 6 As shown, the liquid flow channel 15 is movably disposed on the base 1 to have a first state and a second state; in the second state, the liquid flow channel 15 is tilted so that one of the first cleaning tank 13 and the second cleaning tank 14 is at a low position of the liquid flow channel 15 and the other is at a high position of the liquid flow channel 15, and the first cleaning tank 13 and the second cleaning tank 14 are in fluid communication through the liquid flow channel 15.

[0063] Compared to Embodiment 1, in Embodiment 2, the liquid flow channel 15 is movably disposed on the base 1, having a first state and a second state. When the liquid flow channel 15 is in the second state, it can tilt to achieve fluid communication between the first cleaning tank 13 and the second cleaning tank 14. This arrangement allows the surface cleaning device to have a more stable operating state. For example, when the liquid flow channel 15 is in the first state, stable cleaning of the cleaning roller 3 and / or support wheel 2 can be achieved, and the liquid flow between the two cleaning tanks is slowed down to avoid cross-contamination of the liquids in the two cleaning tanks. Alternatively, stable water storage can be achieved in the first cleaning tank 13 or the second cleaning tank 14. When the liquid flow channel 15 switches from the first state to the second state, rapid flow of cleaning liquid can be achieved, whether the cleaning liquid flows from one of the first cleaning tank 13 and the second cleaning tank 14 to the other, or the cleaning liquid converges uniformly into the suction channel, thereby improving cleaning efficiency.

[0064] It should be noted that the second embodiment does not limit the first state. It does not mean that the fluid channel 15 is necessarily in an absolutely horizontal state in the first state. Depending on the design of different models, the fluid channel 15 may be in a certain inclined state in the first state. However, the angle between the fluid channel 15 and the horizontal direction in the first state is smaller than the angle between the fluid channel 15 and the horizontal direction in the second state.

[0065] This second embodiment does not limit the implementation method of the state switching of the fluid channel 15, and it can adopt any of the following embodiments:

[0066] Example 1: The base 1 is provided with a driving device and a trigger connected to the driving device. When the trigger is triggered, the driving device drives the fluid channel 15 to switch between a first state and a second state.

[0067] By setting a drive device and a trigger connected to the drive device on the base 1, a signal can be given to the drive device according to the trigger state of the trigger 4, and the drive device can drive the liquid flow channel 15 to switch between the first state and the second state, thereby realizing the automated control of the state switching of the liquid flow channel 15, realizing the automated and intelligent control of the entire self-cleaning operation process, greatly freeing up manpower and improving the user experience.

[0068] In this embodiment 1, the driving device can drive the fluid channel 15 to achieve state switching in any of the following examples:

[0069] Example 1: such as Figures 2 to 5 As shown, the drive unit is located on the rear side of the base 1. The drive unit includes a drive section and a support block 6 that is pulsatorically connected to the drive section. The drive section drives the support block 6 to rise or fall, thereby raising or lowering the rear side of the base 1. When the rear side of the base 1 is raised, the base 1 is tilted, thus placing the fluid channel 15 on the base 1 in a second state. When the rear side of the base 1 is lowered, the base 1 is laid flat, thus placing the fluid channel 15 on the base 1 in a first state.

[0070] In Example 1, the drive unit can be a first motor 5, which drives the support block 6 to rise and fall via a ball screw pair. Alternatively, the drive unit can be a hydraulic cylinder or a pneumatic cylinder, which directly drives the support block 6 to rise and fall.

[0071] Preferably, such as Figure 3 and Figure 5 As shown, the base is provided with an upward stop 16 and a downward stop 17 for limiting the displacement of the support block 6. This configuration enables precise control of the displacement of the support block 6, thereby allowing the fluid channel 15 to switch precisely between the first and second states.

[0072] Example 2: The base 1 has a base 11 and a top cover 12. The top cover 12 is pivotally connected to the base 11 via a rotating shaft. A first cleaning tank 13, a second cleaning tank 14, and a liquid flow channel 15 are all located on the top cover 12. A drive device is connected to the top cover 12 to drive the top cover 12 to rotate around the rotating shaft, thereby enabling the liquid flow channel 15 located on the top cover 12 to switch between a first state and a second state.

[0073] Preferably, a retractable and stackable sealing sheet is used between the top cover 12 and the base 11 to achieve dynamic sealing, so that the top cover 12 can still maintain a sealed state with the base 11 during the rotation of the pivot, and prevent cleaning fluid from entering the interior of the base 11 through the joint between the top cover 12 and the base 11.

[0074] In this embodiment 1, the triggering method of the trigger can be any one of the following examples:

[0075] Example 3: such as Figure 7 and Figure 8 As shown, the cleaning roller 3 is movable back and forth on the brush housing to have a first position away from the front side of the base 1 and a second position close to the front side of the base 1; when the cleaning roller 3 is in the second position, the trigger is triggered.

[0076] The cleaning roller 3 is movable back and forth within the brush housing. During cleaning operations, the back-and-forth movement of the cleaning roller 3 changes the distance between it and the scraping element. When hair, thread, or other easily tangled materials are wrapped around the cleaning roller 3 and / or the scraping element, the change in distance loosens or breaks the tangled material, thus untangling it. The suction of the suction port 7 at the bottom of the brush housing then collects the tangled material. Furthermore, the back-and-forth movement of the cleaning roller 3 can also rub hair and other easily tangled materials on its surface into a ball, facilitating their removal. During self-cleaning operations, the back-and-forth movement of the cleaning roller 3 triggers the trigger element, causing the drive device to receive a signal and control the liquid flow channel 15 to switch states, thereby improving the automation of the self-cleaning operation.

[0077] Specifically, the floor brush housing is provided with a first drive mechanism for driving the cleaning roller 3 to move back and forth. During the self-cleaning operation, when the first drive mechanism drives the cleaning roller 3 to move forward to switch from the first position to the second position, the trigger is triggered to transmit a signal to the drive device. The drive device receives the signal and drives the liquid flow channel 15 to switch from the first state to the second state.

[0078] Example 4: This example 4 is not illustrated. In this example 4, the support wheel is movable back and forth on the brush housing to have a third position away from the cleaning roller and a fourth position close to the cleaning roller; when the support wheel is in the fourth position, the trigger is activated; or, the support wheel is vertically movable on the brush housing to have a fifth position close to the bottom wall of the second cleaning tank and a sixth position away from the bottom wall of the second cleaning tank; when the support wheel is in the fifth position, the trigger is activated.

[0079] The support wheels are movably mounted on the brush housing, either forward or backward, or vertically, allowing for adjustments to the distance between the squeegee blades at the bottom of the brush housing and the surface to be cleaned. This improves the adaptability of the cleaning machine to the cleaning area during its movement. For example, when the machine moves forward, changing the position of the support wheels on the brush housing reduces the distance between the squeegee blades and the surface, allowing the suction port 7 to pick up dirt in front of the squeegee blades. Conversely, when the machine moves backward, changing the position of the support wheels increases the distance, allowing the suction port 7 to pick up dirt behind the squeegee blades and reducing friction between the blades and the surface during retraction, facilitating the backward movement. During self-cleaning, the positional changes of the support wheels trigger the actuator, sending a signal to the drive unit to control the fluid flow channel and switch states, thus enhancing the automation of the self-cleaning process.

[0080] Specifically, the floor brush housing is equipped with a second drive mechanism for driving the support wheel. During the self-cleaning operation, when the second drive mechanism drives the support wheel, the trigger can be triggered to transmit a signal to the drive device. The drive device receives the signal and drives the liquid flow channel to switch from the first state to the second state.

[0081] In this embodiment 1, the specific form of the trigger is not limited, and it includes, but is not limited to, any one of the following examples:

[0082] Example 5: such as Figure 7 and Figure 8 As shown, the trigger 4 is a micro switch located on the base 1. When the cleaning roller 3 or the support wheel 2 moves, the micro switch can be triggered. After the micro switch is triggered, it transmits a signal to the drive device, so as to drive the liquid flow channel 15 to achieve state switching through the drive device.

[0083] Example 6: This example 6 is not illustrated. In this example 6, the trigger is a reed switch. The cleaning roller or support wheel is equipped with a magnetic component. When the cleaning roller or support wheel moves, it can trigger the reed switch. After the reed switch is triggered, it transmits a signal to the drive device, so as to drive the liquid flow channel through the drive device to realize the state switching.

[0084] Example 7: This example 7 is not illustrated. In this example 7, the trigger is a photosensitive switch. When the cleaning roller or support wheel moves, it can trigger the photosensitive switch. After the photosensitive switch is triggered, it transmits a signal to the drive device, so that the drive device can drive the liquid flow channel to achieve state switching.

[0085] Example 2: This example 2 is not illustrated. In this example 2, the base has a base and a top cover. The top cover is pivotally connected to the base via a rotating shaft. The first cleaning tank, the second cleaning tank, and the liquid flow channel are all located on the top cover. The cleaning roller is movably located on the brush housing to move closer to or away from the rotating shaft, thereby switching the liquid flow channel between the first and second states. And / or, the support wheel is movably located on the brush housing to move closer to or away from the rotating shaft, thereby switching the liquid flow channel between the first and second states.

[0086] To prevent cleaning fluid from entering the base through the joint between the top cover and the base during the rotation of the top cover around the axis, preferably, a retractable and stackable sealing plate is used between the top cover and the base to achieve dynamic sealing, so that the top cover can still maintain a sealed state with the base 11 during the rotation of the top cover around the axis.

[0087] In this embodiment 2, the first cleaning tank, the second cleaning tank, and the liquid flow channel are all located on the top cover. The top cover is pivotally connected to the base via a rotating shaft. This pivotal connection provides a technical basis for the non-powered (compared to the power transmission achieved by a drive device in embodiment 1) state switching of the liquid flow channel. Utilizing the lever principle, when the weight on both sides of the rotating shaft is changed, the top cover can rotate around the rotating shaft according to the weight change, thereby realizing the switching of the liquid flow channel between the first and second states. Therefore, the cleaning roller and / or support wheel are movably mounted on the floor brush housing. When the position of the cleaning roller and / or support wheel on the floor brush housing is changed to change the center of gravity of the cleaning machine, the top cover can rotate around the rotating shaft to synchronously drive the liquid flow channel to achieve state switching.

[0088] This application does not limit the method of supplying the cleaning fluid in the first cleaning tank 13 and the second cleaning tank 14, and it can adopt any of the following embodiments:

[0089] Implementation method 3: The cleaning machine is equipped with a liquid supply structure for supplying liquid to the cleaning roller 3 to achieve wet cleaning. During the self-cleaning operation, the liquid supply structure can also be used to supply liquid to the first cleaning tank 13, and when the liquid flow channel 15 is tilted, the liquid flows from the first cleaning tank 13 to the second cleaning tank 14, thereby realizing the supply of cleaning liquid to the second cleaning tank 14.

[0090] Implementation Method 4: The cleaning machine is equipped with a first liquid supply structure for supplying liquid to the cleaning roller 3 to achieve wet mopping. During the self-cleaning operation, this liquid supply structure can also be used to supply liquid to the first cleaning tank 13. The cleaning machine is also equipped with a second liquid supply structure for supplying liquid to the second cleaning tank 14. Since the support wheel 2 does not need to be wetted during the cleaning operation, the second liquid supply structure does not need to supply liquid to the second cleaning tank 14 during the cleaning operation. However, the first liquid supply structure needs to continuously supply liquid to the cleaning roller 3 during the cleaning operation, resulting in greater liquid loss. Therefore, preferably, during the self-cleaning operation, the second liquid supply structure supplies liquid to the second cleaning tank 14, and the liquid flows from the second cleaning tank 14 to the first cleaning tank 13 when the liquid flow channel 15 is tilted. Of course, during the self-cleaning operation, the first liquid supply structure can still supply liquid to the first cleaning tank 13. That is, in this embodiment, the source of the cleaning fluid in the first cleaning tank 13 can be solely from the first liquid supply structure, solely from the second liquid supply structure, or both the first liquid supply structure and the second liquid supply structure can supply cleaning fluid to the first cleaning tank 13.

[0091] Implementation Method 5: The cleaning machine is equipped with a first liquid supply structure for supplying liquid to the cleaning roller 3 to achieve wet floor cleaning. During the self-cleaning operation, this liquid supply structure can also be used to supply liquid to the first cleaning tank 13. A third liquid supply structure is provided on the base for supplying liquid to the second cleaning tank 14. The first liquid supply structure needs to continuously supply liquid to the cleaning roller 3 during the cleaning operation, resulting in significant liquid loss. Therefore, preferably, during the self-cleaning operation, the third liquid supply structure supplies liquid to the second cleaning tank 14, and the liquid flows from the second cleaning tank 14 to the first cleaning tank 13 when the liquid flow channel 15 is tilted. Of course, during the self-cleaning operation, the first liquid supply structure can still supply liquid to the first cleaning tank 13. In other words, in this implementation method 5, the source of the cleaning liquid in the first cleaning tank 13 can be solely from the first liquid supply structure, solely from the third liquid supply structure, or both the first and third liquid supply structures can supply cleaning liquid to the first cleaning tank 13.

[0092] Embodiments four and five achieve separate supply of cleaning fluid to the second cleaning tank 14 by separately setting a liquid supply structure on the base 1 or the cleaning machine. The support wheel 2 has a hard surface, and the outer periphery of the cleaning roller 3 is wrapped with a cleaning cloth with several tufts distributed on it. During the cleaning operation, the cleaning cloth and its surface tufts will adhere to more dirt than the support wheel 2. Therefore, the cleanliness of the cleaning fluid after cleaning the support wheel 2 is better than that after cleaning the cleaning roller 3. The technical solutions in embodiments four and five allow the cleaning fluid in the second cleaning tank 14 to flow to the first cleaning tank 13, enabling the reuse of the cleaning fluid in the second cleaning tank 14, avoiding waste and saving cleaning fluid. From another perspective, after the cleaning solution is used, it will be collected in the waste container or directly discharged into external channels such as floor drains. The reuse of cleaning solution also reduces the volume requirement of the waste container, which is conducive to the miniaturization of the waste container design, reduces production and manufacturing costs, and also reduces the need for storage space for storing the waste container.

[0093] When the liquid flow channel 15 in Embodiments 4 and 5 adopts the fixed inclined liquid flow channel 15 of Embodiment 1, the self-cleaning of the cleaning roller 3 and the support wheel 2 is carried out synchronously during the self-cleaning operation. The cleaning liquid can flow through the second cleaning tank 14 and then flow to the first cleaning tank 13 to replenish the first cleaning tank 13. When the liquid flow channel 15 in Embodiments 4 and 5 adopts the movable liquid flow channel 15 of Embodiment 2, when the liquid flow channel 15 is in the second state, the cleaning liquid flows from the second cleaning tank 14 to the first cleaning tank 13. When the cleaning liquid in the first cleaning tank 13 meets the cleaning requirements of the cleaning roller 3, the liquid flow channel 15 returns to the first state. In the first state, the second liquid supply structure or the third liquid supply structure supplies liquid to the second cleaning tank 14 for the support wheel 2 to perform self-cleaning.

[0094] The wastewater recovery during the self-cleaning operation in this application can be achieved using any of the following embodiments:

[0095] Implementation Method Six: The cleaning machine is equipped with a power source, which can be a suction motor on the cleaning machine. The suction motor is connected to the first cleaning tank 13 through a suction port 7 located on the floor brush to generate suction force, thereby collecting the liquid in the first cleaning tank 13 through the suction port 7 into a wastewater tank located on the cleaning machine. To further achieve the collection of liquid in the second cleaning tank 14, the power source is connected to a liquid flow channel 15, so that the liquid in the second cleaning tank 14 flows to the first cleaning tank 13 under the combined action of gravity and suction force through a fixed inclined liquid flow channel 15 or through a movable liquid flow channel 15 in a second state, and is finally collected into the wastewater tank located on the cleaning machine by the suction motor.

[0096] Implementation Method Seven: A power source is provided on the base 1, and the power source is connected to the liquid flow channel 15. The base 1 is also provided with a sewage collection tank or a sewage discharge channel connected to a floor drain. In this implementation method seven, the power source on the base 1 can simply transport the sewage in the second cleaning tank 14 to the sewage collection tank or sewage discharge channel on the base 1, while the sewage in the first cleaning tank 13 is still sucked in by the suction motor on the cleaning machine body and enters the sewage tank on the cleaning machine. Of course, in this seventh embodiment, the power source provided on the base 1 can be used to collect the sewage in the second cleaning tank 14 and the first cleaning tank 13 at the same time, and transport the collected sewage to the sewage collection tank or sewage discharge channel of the base 1. In one example, the power source can be used to simultaneously pump the sewage in the first cleaning tank 13 and the second cleaning tank 14 and discharge it. In another example, the sewage in the second cleaning tank 14 can be transferred to the first cleaning tank 13 by means of the tilt of the liquid channel, and the power source provided on the base 1 can be used to centrally pump the first cleaning tank 13 so as to uniformly pump and discharge the sewage in the original first cleaning tank 13 and the sewage from the second cleaning tank 14.

[0097] The structure of the support wheel 2 in this application can adopt any of the following embodiments:

[0098] Implementation method 8: The support wheel 2 includes a wheel body and a wheel axle. The wheel body rotates around the wheel axle under the drive of external force to perform self-cleaning.

[0099] In one embodiment, the base 1 is provided with a rotatable cleaning component. When the cleaning machine is placed on the base 1, the cleaning component can abut against the support wheel 2. The rotatable cleaning component drives the support wheel 2 to rotate through its own rotation, so as to clean the support wheel 2.

[0100] In another embodiment, the base 1 is provided with a movable cleaning component. When the cleaning machine is placed on the base 1, the cleaning component can abut against the support wheel 2. The movable cleaning component drives the support wheel 2 to rotate through its own movement, so as to clean the support wheel 2.

[0101] Implementation Method Nine: The support wheel 2 includes a wheel body and a drive motor. The wheel body rotates under the drive motor to perform self-cleaning. The rotation of the wheel body provides assistance to the cleaning machine during the cleaning operation, making the movement of the cleaning machine smoother. During the self-cleaning operation, the rotation of the wheel body ensures that the traveling surface of the wheel body contacts the cleaning liquid in the second cleaning tank 14 along its circumference, improving the comprehensiveness of the cleaning. Moreover, the rotation of the wheel body can disturb the cleaning liquid in the second cleaning tank 14, improving the cleaning effect on the wheel body.

[0102] Furthermore, the base 1 is equipped with a cleaning component. When the cleaning machine is placed on the base 1, the cleaning component can abut against the support wheel 2 to clean the support wheel 2. For example, the cleaning component is a cleaning rib fixedly installed on the bottom wall and / or side wall of the second cleaning tank 14, or the cleaning component is a cleaning rib fixedly installed on the outside of the second cleaning tank 14 and adjacent to the second cleaning tank 14. When the support wheel 2 rotates under the drive of the drive motor, the cleaning component scrapes the support wheel 2 to achieve cleaning of the support wheel 2. By setting a cleaning component that can abut against the support wheel 2, the cleaning effect on the surface of the support wheel 2 can be further improved by the scraping of the cleaning component during the wet cleaning process, especially for stubborn stains adhering to the surface of the support wheel 2.

[0103] In this application, the self-cleaning process of the cleaning roller 3 and the self-cleaning process of the support wheel 2 can be performed sequentially or simultaneously. When the self-cleaning of the cleaning roller 3 and the support wheel 2 are performed simultaneously, the rotation direction of the cleaning roller 3 and the rotation direction of the support wheel 2 can be the same or different.

[0104] To improve cleaning efficiency, in a preferred embodiment of this application, the self-cleaning process of the cleaning roller 3 and the self-cleaning process of the support wheel 2 are performed synchronously, and during the self-cleaning process, the rotation direction of the cleaning roller 3 is opposite to that of the support wheel 2. During the self-cleaning operation, the base 1 and the cleaning machine need to maintain an electrical connection for charging or communication. The rotation of the cleaning roller 3 and the support wheel 2 will cause the cleaning machine body to vibrate. When the cleaning machine is placed on the base 1, the cleaning roller 3 and the support wheel 2 are located on the front and rear sides of the base 1, respectively. When the self-cleaning processes of the cleaning roller 3 and the support wheel 2 are started synchronously and they rotate in opposite directions, the force on the cleaning machine can be made approximately equal, thereby reducing the vibration of the cleaning machine and ensuring the stability and reliability of the electrical connection between the cleaning machine and the base 1.

[0105] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0106] 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.

[0107] The above descriptions are merely embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A surface cleaning device with a support wheel, comprising a cleaning machine and a base for placing the cleaning machine, the cleaning machine comprising a floor brush and a body pivotally connected to the floor brush, the floor brush comprising a floor brush housing and a cleaning roller and a support wheel disposed on the floor brush housing, characterized in that, The base is provided with a first cleaning tank for accommodating the cleaning roller and a second cleaning tank for accommodating the support wheel. The base is also provided with a liquid flow channel connecting the first cleaning tank and the second cleaning tank, and the liquid flow channel is inclined.

2. The surface cleaning device with supporting wheels according to claim 1, characterized in that, The liquid flow channel is movably disposed on the base to have a first state and a second state; in the second state, the liquid flow channel is tilted so that one of the first cleaning tank and the second cleaning tank is at a low position of the liquid flow channel and the other is at a high position of the liquid flow channel, and the first cleaning tank and the second cleaning tank are in fluid communication through the liquid flow channel.

3. A surface cleaning device with supporting wheels according to claim 2, characterized in that, The base is provided with a driving device and a trigger connected to the driving device. When the trigger is triggered, the driving device drives the fluid channel to switch between the first state and the second state.

4. A surface cleaning device with supporting wheels according to claim 3, characterized in that, The cleaning roller is movable back and forth on the floor brush housing to have a first position away from the front side of the base and a second position close to the front side of the base; when the cleaning roller is in the second position, the trigger is activated.

5. A surface cleaning device with supporting wheels according to claim 3, characterized in that, The support wheel is movably disposed on the floor brush housing to have a third position away from the cleaning roller and a fourth position close to the cleaning roller; when the support wheel is in the fourth position, the trigger is activated. Alternatively, the support wheel can be vertically mounted on the floor brush housing to have a fifth position close to the bottom wall of the second cleaning tank and a sixth position away from the bottom wall of the second cleaning tank; when the support wheel is in the fifth position, the trigger is activated.

6. A surface cleaning device with supporting wheels according to claim 2, characterized in that, The base has a base and a top cover. The top cover is pivotally connected to the base via a rotating shaft. The first cleaning tank, the second cleaning tank, and the liquid flow channel are all located on the top cover. The cleaning roller is movably disposed on the floor brush housing to be close to or away from the rotating shaft, thereby enabling the liquid flow channel to switch between the first state and the second state; And / or, the support wheel is movably disposed on the brush housing to move closer to or further away from the rotating shaft, thereby enabling the fluid flow channel to switch between the first state and the second state.

7. A surface cleaning device with supporting wheels according to claim 1, characterized in that, The base or the cleaning machine is provided with a liquid supply structure for supplying liquid to the second cleaning tank. The cleaning liquid flows from the liquid supply structure to the second cleaning tank, and flows from the second cleaning tank to the first cleaning tank when the liquid flow channel is tilted.

8. A surface cleaning device with supporting wheels according to claim 1, characterized in that, The surface cleaning device further includes a power source disposed on the cleaning machine and / or on the base, the power source being connected to the liquid flow channel.

9. A surface cleaning device with a support wheel according to any one of claims 1 to 8, characterized in that, The support wheel includes a wheel body and a drive motor. The wheel body rotates under the drive motor to perform self-cleaning.

10. A surface cleaning device with a support wheel according to any one of claims 1 to 8, characterized in that, The base is equipped with a cleaning component. When the cleaning machine is placed on the base, the cleaning component can abut against the support wheel to clean the support wheel.

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