Cleaning device

Abstract

The present invention relates to a cleaning device comprising: a floor brush for contacting a surface to be cleaned; the upright machine body is pivotally connected with the floor brush, and a vacuum motor is arranged on the upright machine body; the liquid supply system comprises a clear water tank, a liquid conveying pipeline and a pump; the recovery system comprises a recovery system; the vacuum motor, the sewage tank and the recovery pipeline are arranged on the upright machine body; the position sensing assembly is used for recognizing relative position information of the upright machine body and the floor brush, and the controller is connected with the position sensing assembly, obtains the relative position information, recognizes the state of the cleaning equipment according to the relative position information and controls a recovery system and a liquid supply system of the cleaning equipment according to the state. Therefore, liquid leakage in the sewage tank is prevented, and user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a cleaning equipment. Background Art

[0002] With the development of economy and the progress of society, people's requirements for the quality of life are getting higher and higher, and various cleaning equipment are applied to people's lives. Common cleaning equipment includes vacuum cleaners, floor-sweeping robots, floor-washing machines, etc. Among them, floor-washing machines are widely used because of their function of washing and mopping in one.

[0003] When some current floor-washing machines clean the low places under beds, sofas, coffee tables, etc., the body needs to be tilted at a large angle or even in a lying flat state. At this time, the sewage in the sewage tank is easy to splash, thus soiling the equipment and the surface to be cleaned. In addition, the entry of sewage into the vacuum motor will damage its internal components. Summary of the Invention

[0004] Based on this, in view of the problem of sewage leakage existing in the prior art, it is necessary to provide a cleaning equipment.

[0005] The cleaning equipment includes:

[0006] A floor brush for contacting the surface to be cleaned;

[0007] An upright body pivotally connected to the floor brush, and a vacuum motor is arranged on the upright body;

[0008] A liquid supply system, the liquid supply system includes: a fresh water tank, a liquid delivery pipeline and a pump;

[0009] A recovery system, the recovery system includes; the vacuum motor, a sewage tank and a recovery pipeline, and the sewage tank is arranged on the upright body;

[0010] A position sensing component for identifying the relative position information between the upright body and the floor brush and

[0011] A controller, connected to the position sensing component, obtaining the relative position information, identifying the state of the cleaning equipment according to the relative position information, and controlling the recovery system and the liquid supply system of the cleaning equipment according to the state.

[0012] In one embodiment, the cleaning equipment includes a rotating mechanism and rear wheels, the rotating mechanism enables the upright body to be rotatably connected to the floor brush, the rotating mechanism includes a longitudinal axis, and the rear wheels are used to support the cleaning equipment during use, and the longitudinal axis is parallel to the rotation axis of the rear wheels.

[0013] In one embodiment, the rotating mechanism includes a connector head seat disposed on the floor brush and a rotating head connected to the upright body, and the rotating head is in shape fit with the connector head seat so that the upright body can swing relative to the floor brush about the longitudinal axis.

[0014] In one embodiment, the upright body has a first extreme position and a second extreme position relative to the floor brush.

[0015] In one embodiment, the position sensing assembly includes a first sensor and a second sensor.

[0016] In one embodiment, the first sensor is fixedly disposed on the connector head seat, and the rotating head is provided with a first trigger end. When the upright body is in the first extreme position, the first trigger end cooperates with the first sensor, and the controller identifies the relative position information between the upright body and the floor brush through the first sensor and the first trigger end, and identifies that the cleaning device is in an upright state.

[0017] In one embodiment, the controller, when the controller identifies that the cleaning device is in the upright state, controls the vacuum motor to stop suction; controls the pump to stop pumping out the cleaning liquid.

[0018] In one embodiment, the second sensor is fixedly disposed on the connector head seat, and the rotating head is provided with a second trigger end. When the upright body is in the second extreme position, the second trigger end cooperates with the second sensor, and the controller identifies the relative position information between the upright body and the floor brush through the second sensor and the second trigger end, and identifies that the cleaning device is in a lying flat state.

[0019] In one embodiment, the controller, when the controller identifies that the cleaning device is in the lying flat state, controls the vacuum motor to reduce the suction power; controls the pump to stop pumping out the cleaning liquid.

[0020] In one embodiment, the controller, when the controller identifies that the cleaning device is in the upright state, controls the floor brush motor to stop rotating, and when the controller identifies that the cleaning device is in the lying flat state, controls the floor brush lighting member to work.

[0021] In one embodiment, the first trigger end is a protrusion fixedly disposed on the rotating head, and the second trigger end is a magnet embedded in the rotating head.

[0022] In one embodiment, the first sensor is a microswitch, and the second sensor is a Hall element.

[0023] In one embodiment, the first sensor trigger point and the second sensor trigger point have an angle of 45 degrees to 95 degrees with respect to the longitudinal axis.

[0024] In one embodiment, the sewage tank includes a barrel body with an upper opening and a cover body for sealing the opening. The cover body is provided with an air passage, the steam outlet end of the air passage is connected to the air inlet of the vacuum motor, the air inlet end of the air passage is arranged at the upper part of the barrel body, a vertical upward water inlet pipe is arranged at the bottom of the barrel body, the water inlet end of the water inlet pipe is connected to the floor brush, and the water outlet end of the water inlet pipe is arranged inside the barrel body.

[0025] In one embodiment, the recovery system includes a water level detection component. The water level detection component is used to identify the sewage volume information in the sewage tank. The controller obtains the volume information, identifies the state of the cleaning device according to the volume information, and controls the recovery system of the cleaning device according to the state. The water level detection component includes a first water level detection electrode group extending downward from the cover body to at least the middle part of the barrel body, and a second water level detection electrode group extending downward from the cover body to the upper part of the barrel body. The second water level detection electrode group is arranged on the side opposite to the air inlet end.

[0026] In one embodiment, the sewage tank includes a separator arranged inside the barrel body. The separator is arranged below the water outlet end, and at least part of the separator arranged below the second water level detection electrode group can block the sewage below the separator from entering above the separator.

[0027] In one embodiment, when the controller identifies that the cleaning device is in a lying flat state, the controller identifies the state of the cleaning device according to the volume information obtained by the second water level detection electrode group.

[0028] The above-mentioned cleaning device, because it is provided with a position sensor component, can identify the relative position information between the upright body and the floor brush, and is provided with a controller to control the recovery system and the liquid supply system of the cleaning system according to the received relative position information. Furthermore, it can prevent liquid leakage in the sewage tank and improve the user experience. Description of the Drawings

[0029] Figure 1 Isometric view of the cleaning device provided by an embodiment of the present application;

[0030] Figure 2 is Figure 1 exploded view of the cleaning device shown in

[0031] Figure 3 is Figure 1 cross-sectional view of a section of the cleaning device shown in

[0032] Figure 4 A cross-sectional view of a handheld assembly;

[0033] Figure 5 A cross-sectional view of a floor brush;

[0034] Figure 6 An isometric view of the floor brush with some structures removed;

[0035] Figure 7 An isometric view of the rod with some structures removed;

[0036] Figure 8 A cross-sectional view of a section of the rod;

[0037] Figure 9 For Figure 1 The isometric view of the cleaning device shown in [[ ]] at the first limit position;

[0038] Figure 10 For Figure 9 The partial structure diagram of the cleaning device shown in [[ ]];

[0039] Figure 11 For Figure 1 The isometric view of the cleaning device shown in [[ ]] during normal operation;

[0040] Figure 12 The partial structure diagram of the cleaning device shown in [

[11] ];

[0041] Figure 13 For Figure 1 The isometric view of the cleaning device shown in [[ ]] at the second limit position;

[0042] Figure 14 For Figure 13 The partial structure diagram of the cleaning device shown in [[ ]];

[0043] Figure 15 A cross-sectional view of a section of the sewage tank;

[0044] Figure 16 An exploded view of the sewage tank;

[0045] Figure 17 An isometric view of the cover;

[0046] Figure 18 Another cross-sectional view of the sewage tank.

[0047] Explanation of reference numerals:

[0048] 10. Floor brush; 11. Rear wheel; 12. Connector seat; 13. Fresh water tank; 14. Sprayer; 15. Suction port; 16. Pump; 20. Upright body; 24. Handheld assembly; 242. Dust cup assembly; 241. Machine body; 23. Vacuum motor; 231. Air inlet; 2411. Holding part; 2412. Power supply unit; 22. Sewage tank; 221. Barrel body; 2211. Upper opening; 2212. Water inlet pipe; 2212a. Water inlet end; 2212b. Water outlet end; 222. Cover body; 2221. Air passage; 2221b. Steam outlet end; 2221a. Air inlet end; 2231a. First water level detection electrode group; 2231b. Second water level detection electrode group; 224. Isolator; 21. Rotating head; 211. First trigger end; 212. Second trigger end; 25. Rod body; 252. Installation cavity; 251. Circuit board assembly; 121. First sensor; 122. Second sensor. Detailed implementation manners

[0049] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention will be provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0052] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0055] The cleaning device includes: a floor brush 10, an upright body 20, a liquid supply system, a recovery system, a position sensing component and a controller.

[0056] The floor brush 10 is used to contact the surface to be cleaned. The floor brush 10 includes: a rear wheel 11, a connection head seat 12, a fresh water tank 13, a nozzle 14, a suction port 15, a roller brush motor and a roller brush.

[0057] The rear wheel 11 is used to support the cleaning device during use and can rotate about its rotation axis S2, which extends in the left-right direction to reduce the moving resistance of the cleaning device during use. The suction port 15 is provided on the bottom surface of the floor brush 10 in contact with the surface to be cleaned. A rotary brush for patting and agitating the surface to be cleaned is provided inside the suction port 15, so that dust and garbage can be more easily sucked into the suction port 15. The rotary brush is driven by a rotary brush motor. Some embodiments of the rotary brush include, but are not limited to, a single horizontal rotary brush, a double horizontal rotary brush, one or more vertical rotary brushes or fixed brushes. In some embodiments, the rotary brush is not provided inside the suction port 15. In some embodiments, the cleaning device is provided with two rotary brushes, one rotary brush is provided inside the suction port 15, and the other rotary brush is provided behind it. The cleaning device is supported on the surface to be cleaned by the two rotary brushes.

[0058] The upright body 20 includes: a hand-held assembly 24, a sewage tank 22, a rotating head 21 and a rod body 25.

[0059] The hand-held assembly 24 includes a body 241 having a grip portion 2411 and a vacuum motor 23; the hand-held assembly 24 further includes a dust cup assembly 242 for separating dust and garbage in the fluid. The body 241 further includes a power supply unit 2412. The dust cup assembly 242, the vacuum motor 23 and the power supply unit 2412 are sequentially arranged in the direction of the axis S3 of the vacuum motor 23. At least a part of the grip portion 2411 is arranged offset from the axis S3, so that when the cleaning device cleans a low place, the user can still adjust the position of the cleaning device by grasping the grip portion 2411. In some embodiments, the power supply unit 2412 is a battery pack, such as Figure 13 As shown, the grip portion 2411 is generally arranged above the power supply unit 2412, so that the user uses less force when grasping and using the cleaning device.

[0060] An installation cavity 252 is provided at the front part of the rod body 25, and the sewage tank 22 is detachably installed in the installation cavity 252. The upper end of the rod body 25 is docked with the hand-held assembly 24, and fluid and circuit communication can be achieved. The lower end of the rod body 25 is docked with the rotating head 21, and fluid and circuit communication can be achieved. In order to reduce the weight of the hand-held assembly 24, a circuit board assembly 251 is provided inside the rod body 25. The upright body 20 and the floor brush 10 can be pivotally connected to enable the user to obtain a large cleaning area with a small amount of operation. Specifically, the upright body 20 is pivotally connected to the floor brush 10 through the shape matching of the rotating head 21 and the connecting head seat 12.

[0061] The liquid supply system may include a fresh water tank 13 for storing and supplying cleaning liquid. In this embodiment, the fresh water tank 13 can be detachably installed on the floor brush 10. In some other embodiments, the fresh water tank 13 is detachably installed on the upright body 20. Specifically, the fresh water tank 13 is detachably installed on the rod body 25 and is arranged opposite to the sewage tank 22 to reduce the volume and improve the structural compactness.

[0062] The liquid supply system may include a pump 16 for providing kinetic energy to the liquid. Similarly, the pump 16 may be installed on the floor brush 10 or on the upright body 20, specifically arranged according to the position or specific structural layout of the clean water tank 13.

[0063] The liquid supply system may further include a nozzle 14 facing the surface to be cleaned. The liquid is sprayed onto the surface to be cleaned via the nozzle 14, so that the dirt on the surface to be cleaned is wetted and easily wiped off. In some embodiments of the nozzle 14, the nozzle opening of the nozzle 14 faces the roller brush.

[0064] The liquid supply system may further include a liquid delivery pipeline for delivering the liquid from the clean water tank 13 to the nozzle 14.

[0065] The recovery system includes a sewage tank 22 and a recovery pipeline. The sewage tank 22 is used to separate solid wastes such as debris and hair in the dust and dirt from the fluid and the dirty liquid. The vacuum motor 23 and the sewage tank 22 may be connected through the recovery pipeline. During the flow of the fluid, the vacuum motor 23 is located downstream of the sewage tank 22. The sewage tank 22 and the suction port 15 may be connected through the recovery pipeline.

[0066] The position sensing component is used to identify the relative position information between the upright body 20 and the floor brush 10. It is known that the surface to be cleaned is basically the floor of the bedroom, living room, kitchen and bathroom. The relative position information between the upright body 20 and the floor brush 10 can be understood as the relative angle α between the upright body 20 and the surface to be cleaned. When the upright body 20 inclines towards the surface to be cleaned (such as cleaning the low places under the bed, sofa, coffee table, etc.), the liquid stored in the sewage tank 22 may enter the vacuum motor 23 through the recovery pipeline. It is not desired that the liquid enters the vacuum motor 23 because this will cause liquid leakage, thus soiling the device and the surface to be cleaned. In addition, the liquid entering the vacuum motor 23 will damage its internal components, such as electrical components and bearings.

[0067] The controller may be connected to the position sensing component by using one or more communication channels. The controller may also be connected to other aspects of the cleaning device, such as the water level detection component provided in the sewage tank 22. The controller is used to obtain the relative position information between the upright body 20 and the floor brush 10, identify the state of the cleaning device according to the relative position information, and control the recovery system and / or the liquid supply system of the cleaning device according to the state of the cleaning device. The above cleaning device may specifically be a floor washer.

[0068] The cleaning device may include a rotating mechanism. The rotating mechanism includes a longitudinal axis S1, a connecting head base 12, and a rotating head 21. The connecting head base 12 and the rotating head 21 are rotatably arranged relative to each other with the longitudinal axis S1 as the rotation axis. Thus, the upright body 20 can be rotatably connected to the floor brush 10. The longitudinal axis S1 extends in the left-right direction and is parallel to the rotation axis S2 of the rear wheel 11. When the cleaning device is in the process of cleaning, by contacting the surface to be cleaned with the floor brush 10, the user holds the holding part 2411 of the handheld assembly 24, and by pushing and pulling the cleaning device back and forth, without changing the user's position, a larger cleaning area can be obtained by changing the relative angle α between the upright body 20 and the surface to be cleaned.

[0069] In some embodiments, the rotating mechanism includes a connecting head base 12 provided on the floor brush 10 and a rotating head 21 connected to the upright body 20 that are shape-matched so that the upright body 20 can swing relative to the floor brush 10 about the longitudinal axis S1. The user can change the relative angle α between the upright body 20 and the surface to be cleaned by pushing and pulling to obtain a larger cleaning area.

[0070] In some embodiments, the state of the cleaning device includes an upright state and a lying-flat state.

[0071] In some embodiments, the upright body 20 has a first limit position and a second limit position relative to the floor brush 10. When the upright body 20 is in the first limit position, the upright body 20 is substantially upright on the surface to be cleaned. The user ends the cleaning work or pauses the cleaning work, and the controller recognizes that the cleaning device is in the upright state. In some embodiments, when the cleaning device receives a controller command, it stops the operation of the liquid supply system. Optionally, it controls the pump 16 to stop pumping the cleaning liquid to save water and keep the ground dry. In some embodiments, when the cleaning device receives a controller command, it controls the roller brush to stop working. Optionally, it controls the roller brush motor to stop working to prevent the rotation of the roller brush from driving the whole machine to move. In some embodiments, when the cleaning device receives a controller command, it controls the recycling system to stop working. Optionally, it controls the vacuum motor 23 to stop suction to save the electric energy of the power supply unit 2412. In some embodiments, when the cleaning device receives a controller command, it controls the recycling system to stop working after maintaining an operating time t. Optionally, it controls the vacuum motor 23 to stop working after the operating time t so that the liquid remaining on the surface to be cleaned can be recycled into the sewage tank 22, and t is from 1 s to 4 s.

[0072] As Figure 9 shown, when the upright body 20 is in the first limit position, the relative angle between the upright body 20 and the surface to be cleaned is α1. In this embodiment, the range of α1 is between 80 degrees and 100 degrees.

[0073] When in a non-erect state, the greater the relative angle between the upright body 20 and the surface to be cleaned, the smaller the distance between the sewage tank 22 and the vacuum motor 23 in the height direction, and the greater the possibility that the sewage in the sewage tank 22 flows into the vacuum motor 23.

[0074] When the user wants to clean a low place and the upright body 20 is close to lying flat, that is, when the upright body 20 is in the second limit position, the controller recognizes that the cleaning device is in a lying flat state, and the possibility that the sewage in the sewage tank 22 flows into the vacuum motor 23 greatly increases. In some embodiments, the cleaning device receives a controller command to stop the operation of the liquid supply system. Optionally, the control pump 16 stops pumping out the cleaning liquid to save water and reduce the humidity of the surface to be cleaned at the low place, preventing mildew in the corner. In some embodiments, the cleaning device receives a controller command to reduce the working power of the recovery system. Optionally, the control vacuum motor 23 reduces the suction power, saving the electric energy of the power supply unit 2412, and at the same time reducing the possibility that the sewage in the sewage tank 22 flows into the vacuum motor 23. In some embodiments, the floor brush 10 includes a lighting member for illuminating the surface to be cleaned. In order to save the electric energy of the power supply unit 2412, the lighting member is in a normally closed and non-operating state. When the controller recognizes that the cleaning device is in a lying flat state, the cleaning device receives a controller command to control the lighting member to work to facilitate the user to view the surface to be cleaned at the low place or in the corner.

[0075] As Figure 13 shown, when the upright body 20 is in the second limit position, the relative angle between the upright body 20 and the surface to be cleaned is α2. In this embodiment, the range of α2 is between 145 degrees and 180 degrees.

[0076] In some embodiments, the position sensing component includes at least one of a plurality of but not limited to magnetic encoders, potentiometers, gyroscopes, displacement sensors, etc. The position sensing component is arranged at the connection between the upright body 20 and the floor brush 10 for measuring the relative angle between the upright body 20 and the floor brush 10, and then feedback the relative angle α between the upright body 20 and the surface to be cleaned.

[0077] In some embodiments, the position sensing component includes a plurality of sensors. In some embodiments, the position sensing component includes but not limited to the first sensor 121 and the second sensor 122. In some embodiments, the first sensor 121 and the second sensor 122 have the same sensor type. In some embodiments, the first sensor 121 and the second sensor 122 have different sensor types.

[0078] In some embodiments, the first sensor 121 is fixedly disposed on the connector base 12, and the rotating head 21 is provided with a first trigger end 211. When the upright body 20 is in the first extreme position, the first trigger end 211 cooperates with the first sensor 121. The controller identifies the relative position information between the upright body 20 and the floor brush 10 through the cooperation state of the first sensor 121 and the first trigger end 211, and identifies whether the cleaning device is in an upright state.

[0079] In some embodiments, the second sensor 122 is fixedly disposed on the connector base 12, and the rotating head 21 is provided with a second trigger end 212. When the upright body 20 is in the second extreme position, the second trigger end 212 cooperates with the second sensor 122. The controller identifies the relative position information between the upright body 20 and the floor brush 10 through the cooperation state of the second sensor 122 and the second trigger end 212, and identifies whether the cleaning device is in a lying flat state.

[0080] In some embodiments, the first sensor 121 is a microswitch provided with an elastic arm, and the first trigger end 211 is a protrusion fixedly disposed on the rotating head 21. The protrusion is integrally provided with the rotating head 21. Specifically, it is integrally formed by injection molding, which can improve the strength of the protrusion and ensure the synchronization of the rotational movement of the protrusion and the rotating head 21, thereby improving the sensitivity of the first sensor 121. When the rotating head 21 rotates to the first extreme position along with the upright body 20, the protrusion presses the elastic arm of the microswitch. The controller identifies the relative position information between the upright body 20 and the floor brush 10 through the working condition of the microswitch, and identifies whether the cleaning device is in an upright state.

[0081] In some embodiments, the second sensor 122 is a Hall element, and the second trigger end 212 is a magnet embedded in the rotating head 21. The rotating head 21 is provided with a groove for positioning the magnet, and the magnet is installed in the groove by interference fit, which reduces the production cost. In some embodiments, the magnet is injection-molded and embedded in the rotating head 21. When the rotating head 21 rotates to the second extreme position along with the upright body 20, the Hall element senses the magnet. The controller identifies the relative position information between the upright body 20 and the floor brush 10 through the working condition of the Hall element, and identifies whether the cleaning device is in a lying flat state.

[0082] In some embodiments, the positions of the protrusion and the groove of the rotating head 21 form an angle of 45 degrees to 95 degrees with respect to the longitudinal axis S1. In this embodiment, the lying flat angle value of the upright body 20 is 90 degrees.

[0083] In some embodiments, the sewage tank 22 includes a barrel body 221 having an upper opening 2211 and a cover body 222 for sealing the upper opening 2211. The cover body 222 is provided with an air passage 2221. The air outlet end 2221b of the air passage 2221 is connected to the air inlet 231 of the vacuum motor 23. The air inlet end 2221a of the air passage 2221 is arranged at the upper part of the barrel body 221. A vertically upward water inlet pipe 2212 is arranged at the bottom of the barrel body 221. The water inlet end 2212a of the water inlet pipe 2212 is connected to the floor brush 10. The water outlet end 2212b of the water inlet pipe 2212 is arranged inside the barrel body 221. The fluid carrying solid wastes such as debris and hair and the sewage enters the sewage tank 22 through the water inlet pipe 2212 via the suction port 15. The water inlet pipe 2212 forms part of the recovery pipe.

[0084] In some embodiments, the cleaning device further includes: a water level detection component for identifying the sewage volume information in the sewage tank 22. The controller obtains the volume information, identifies the state of the cleaning device according to the volume information, and controls the recovery system of the cleaning device according to the state of the cleaning device. The water level detection component includes: a first water level detection electrode group 2231a extending downward from the cover body 222 to the middle and lower part of the barrel body 221. The first water level detection electrode group 2231a usually has two detection electrodes. Among the two detection electrodes, one is the positive electrode and the other is the negative electrode. Both detection electrodes are provided with detection contacts extending into the sewage tank 22. During the normal use of the cleaning device, if the detection contacts of the two detection electrodes are simultaneously immersed in water, the two detection electrodes are conducted, and a closed loop is formed between them. If the detection contacts of both detection electrodes are not immersed in water, or only the detection contact of one detection electrode is immersed in water, then the two detection electrodes are open circuit and will not be conducted between them. The specific circuit connection and how the controller obtains whether the two detection electrodes are conducted, etc. can refer to the prior art and will not be elaborated here.

[0085] The water level detection component further includes a second water level detection electrode group 2231b extending downward from the cover body 222 to the upper part of the barrel body 221. The second water level detection electrode group 2231b and the air inlet end 2221a are arranged on the opposite sides in the longitudinal direction of the barrel body 221. The second water level detection electrode group 2231b is also provided with two detection electrodes, and its working principle is basically the same as that of the first water level detection electrode group 2231a and will not be elaborated here. When the cleaning device is working in a lying flat state, the volume information in the sewage tank 22 is detected by the second water level detection electrode group 2231b.

[0086] In some embodiments, the sewage tank 22 includes a separator 224 disposed within the barrel 221. The separator 224 is disposed below the water outlet end 2212b, and at least a part of the separator 224 is disposed below the second water level detection electrode group 2231b, and is configured to block the sewage below the separator 224 from entering above the separator 224.

[0087] In some embodiments, when the controller identifies that the cleaning device is in a lying-flat state, the controller identifies the state of the cleaning device according to the volume information obtained by the second water level detection electrode group 2231b, so as to ensure that the cleaning device can work properly in the lying-flat state.

[0088] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0089] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A cleaning device, characterized in that, Comprising: A floor brush (10) for contacting a surface to be cleaned; An upright body (20) pivotally connected to the floor brush (10), with a vacuum motor (23) disposed on the upright body (20); A liquid supply system, the liquid supply system comprising: a fresh water tank (13), a liquid delivery pipeline, and a pump (16); A recovery system, the recovery system comprising: the vacuum motor (23), a sewage tank (22), and a recovery pipeline, the sewage tank (22) being disposed on the upright body (20); A position sensing assembly for identifying relative position information of the upright body (20) and the floor brush (10); and A controller connected to the position sensing assembly, obtaining the relative position information, identifying the state of the cleaning device according to the relative position information, and controlling the recovery system and / or the liquid supply system of the cleaning device according to the state of the cleaning device.

2. The cleaning device according to claim 1, wherein, Comprising a rotating mechanism and rear wheels (11), the rotating mechanism enabling the upright body (20) to be rotatably connected to the floor brush (10), the rotating mechanism comprising a longitudinal axis (S1), the rear wheels (11) being used for supporting the cleaning device during use, and the longitudinal axis (S1) being parallel to the rotation axis (S2) of the rear wheels (11).

3. The cleaning device according to claim 2, characterized in that, The rotating mechanism comprises a connector seat (12) disposed on the floor brush (10) and a rotating head (21) connected to the upright body (20), the rotating head (21) being in shape fit with the connector seat (12) so that the upright body (20) can swing relative to the floor brush (10) about the longitudinal axis (S1).

4. The cleaning device according to claim 3, characterized in that, The upright body (20) has a first limit position and a second limit position relative to the floor brush (10).

5. The cleaning device according to claim 4, characterized in that, The position sensing assembly comprises a first sensor (121) and a second sensor (122).

6. The cleaning device according to claim 5, characterized in that The first sensor (121) is fixedly disposed on the connector seat (12), and the rotating head (21) is provided with a first trigger end (211). When the upright body (20) is in the first limit position, the first trigger end (211) cooperates with the first sensor (121), and the controller identifies the relative position information of the upright body (20) and the floor brush (10) through the first sensor (121) and the first trigger end (211), and identifies that the cleaning device is in an upright state.

7. The cleaning device according to claim 6, characterized in that, The controller, when the controller identifies that the cleaning device is in the upright state, controls the vacuum motor (23) to stop suction; controls the pump (16) to stop pumping out cleaning liquid.

8. The cleaning device according to claim 7, characterized in that The second sensor (122) is fixedly arranged on the connector base (12). The rotating head (21) is provided with a second trigger end (212). When the upright body (20) is in the second limit position, the second trigger end (212) cooperates with the second sensor (122). The controller identifies the relative position information between the upright body (20) and the floor brush (10) through the second sensor (122) and the second trigger end (212), and identifies that the cleaning device is in the lying-flat state.

9. The cleaning device according to claim 8, wherein The controller, when identifying that the cleaning device is in the lying-flat state, controls the vacuum motor (23) to reduce the suction power; controls the pump (16) to stop pumping out the cleaning liquid.

10. The cleaning device according to claim 9, wherein, The controller, when identifying that the cleaning device is in the upright state, controls the floor brush (10) motor to stop rotating. When the controller identifies that the cleaning device is in the lying-flat state, controls the floor brush (10) lighting member to work. Preferably, the first trigger end (211) is a protrusion fixedly arranged on the rotating head (21), the second trigger end (212) is a magnet embedded in the rotating head (21), and the rotating head (21) is provided with a groove for positioning the magnet. Preferably, the first sensor (121) is a microswitch, and the second sensor (122) is a Hall element. Preferably, the protrusion and the groove of the rotating head (21) have an angle of 45 degrees to 95 degrees relative to the longitudinal axis (S1). Preferably, the sewage tank (22) includes a barrel body (221) with an upper opening (2211) and a cover body (222) for sealing the opening (2211). The cover body (222) is provided with a gas passing channel (2221). The steam outlet end (2221b) of the gas passing channel (2221) is connected to the air inlet (231) of the vacuum motor (23). The air inlet end (2221a) of the gas passing channel (2221) is arranged at the upper part of the barrel body (221). The bottom of the barrel body (221) is provided with a vertically upward water inlet pipe (2212). The water inlet end (2212a) of the water inlet pipe (2212) is connected to the floor brush (10), and the water outlet end (2212b) of the water inlet pipe (2212) is arranged inside the barrel body (221). Preferably, the cleaning device further includes a water level detection component for identifying the sewage volume information in the sewage tank (22). The controller obtains the volume information, identifies the state of the cleaning device based on the volume information, and controls the recovery system of the cleaning device according to the state. The water level detection component includes a first water level detection electrode group (2231a) extending downward from the cover body (222) to the middle and lower part of the barrel body (221), and a second water level detection electrode group (2231b) extending downward from the cover body (222) to the upper part of the barrel body (221). The second water level detection electrode group (2231b) is arranged on the side opposite to the air inlet end (2221a). Preferably, the sewage tank (22) includes a separator (224) arranged in the barrel body (221). The separator (224) is arranged below the water outlet end (2212b), and at least part of the separator (224) arranged below the second water level detection electrode group (2231b) can block the sewage below the separator (224) from entering above the separator (224). Preferably, when the controller identifies that the cleaning device is in a lying flat state, the controller identifies the state of the cleaning device according to the volume information obtained by the second water level detection electrode group (2231b).

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