Air path, air duct assembly, cleaning device and cleaning system

Abstract

The utility model relates to the field of cleaning, disclose wind path, air duct subassembly, cleaning equipment and cleaning system. Wind path includes the air inlet wind path, from the bottom axial of wind force mechanism enters wind force mechanism, the air outlet wind path, from the upper circumferential of wind force mechanism flows out wind force mechanism, forms the annular wind path around wind force mechanism, and axial flow direction the bottom of wind force mechanism, the exhaust wind path, can on -offly intercommunicate air outlet wind path and outside, the air inlet wind path, can on -offly intercommunicate air inlet wind path and outside, the gas delivery wind path, can on -offly intercommunicate air outlet wind path and recovery bucket subassembly, be used for with recovery bucket subassembly delivery into pressurized state, the air extraction wind path, can on -offly intercommunicate air inlet wind path and recovery bucket subassembly, be used for with recovery bucket subassembly extraction into negative pressure state. Make full use of the space of cleaning equipment inside setting wind force mechanism, the wind path that wind flows between wind force mechanism and recovery bucket subassembly is short, and the structure size of relevant air duct subassembly is short.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, specifically to air ducts, air duct components, cleaning equipment, and cleaning systems. Background Technology

[0002] Cleaning machines, such as floor scrubbers, are modern cleaning equipment that integrates vacuuming, mopping, washing, and wastewater recycling, and are widely used in homes and commercial spaces.

[0003] Currently, some floor scrubbers rely on gravity for waste removal. During waste removal, the bottom of the collection bin is opened, and the dirty media flows out naturally. This method has significant limitations in design and installation, and due to the short discharge distance, it is prone to pipe blockage caused by impurities. Other floor scrubbers have a motor and a connected air duct structure inside the base station. The motor generates suction to draw dirty media from the collection bin, and the air duct structure transfers the dirty media from the collection bin to the base station for pressurization and discharge. Specifically, the airflow is first directed to the side, and then split into supply and exhaust air (switched by valves). The two intake airflows in the intake channel are switched by a valve, and the two exhaust airflows are switched by a valve. Because the air duct is located on the side of the motor, it increases the space occupied on the side; moreover, the air duct itself is long and occupies a large space, making it unsuitable for embedding in the floor scrubber. Utility Model Content

[0004] In view of this, the present invention provides an air path, air duct component, cleaning equipment and cleaning system to solve the problems of existing cleaning machines needing to be combined with base station sewage discharge, long air ducts and large space occupation.

[0005] In a first aspect, this utility model provides an airflow path for a cleaning device. The cleaning device includes a wind-powered mechanism for driving the airflow through the airflow path and a collection bin assembly for collecting dirt. The collection bin assembly is located at the bottom of the wind-powered mechanism. The airflow path includes:

[0006] The air inlet path enters the wind power mechanism axially from the bottom of the wind power mechanism;

[0007] The air outlet path flows out of the wind power mechanism from the upper circumferential direction, forming a ring-shaped air path around the wind power mechanism, and flows axially towards the bottom of the wind power mechanism;

[0008] The exhaust duct can be switched on and off between the exhaust duct and the outside.

[0009] The air intake duct can be switched on and off to connect the air intake duct to the outside environment;

[0010] The air supply path can be switched on and off between the air outlet path and the recycling bin assembly, and is used to pressurize the recycling bin assembly.

[0011] The exhaust duct can be switched on and off between the air inlet duct and the recycling bin assembly, and is used to draw the recycling bin assembly into a negative pressure state.

[0012] Beneficial effects: The annular air outlet axially guides the airflow from the top to the bottom of the wind power mechanism, making full use of the space inside the cleaning equipment where the wind power mechanism is located. Furthermore, the recycling bin assembly is located at the bottom of the wind power mechanism, resulting in a short airflow path between the wind power mechanism and the recycling bin assembly. The structural dimensions of the related air duct components are also short, occupying only the axial space of the cleaning equipment. The axial space of the cleaning equipment is usually quite ample, and the increase in axial dimensions requires minimal changes to the overall shape, resulting in low R&D costs.

[0013] In one specific implementation, the exhaust air path and the air supply air path are connected to the outlet air path at different locations.

[0014] In one specific implementation, when the exhaust air path and the exhaust air path are connected, the inlet air path and the outlet air path are disconnected, and the airflow flows from the recycling bin assembly through the exhaust air path, the inlet air path, the outlet air path, and the exhaust air path to the outside, thereby drawing the recycling bin assembly into a negative pressure state; when the inlet air path and the outlet air path are connected, the exhaust air path and the exhaust air path are disconnected, and the airflow flows from the outside through the inlet air path, the inlet air path, the outlet air path, and the outlet air path to the recycling bin assembly, thereby pressurizing the recycling bin assembly.

[0015] In one specific embodiment, the air intake path and the air extraction path are located between the exhaust path and the air supply path.

[0016] In one specific embodiment, the cleaning equipment further includes a first switching valve and a second switching valve. The exhaust air path and the intake air path share the first switching valve, and the exhaust air path and the intake air path are selectively switched on or off. The air supply air path and the air extraction air path share the second switching valve, and the air supply air path and the air extraction air path are selectively switched on or off.

[0017] In one specific embodiment, the system further includes a suction air path and a discharge air path, which can be switched on and off to connect the recycling bin assembly to the outside. When the suction air path, the exhaust air path, and the suction air path are connected, the intake air path, the air supply air path, and the discharge air path are disconnected. Airflow flows from the outside through the suction air path, the recycling bin assembly, the suction air path, the intake air path, the exhaust air path, and the exhaust air path to the outside, thereby drawing the recycling bin assembly into a negative pressure state. When the intake air path, the air supply air path, and the discharge air path are connected, the suction air path, the exhaust air path, and the suction air path are disconnected. Airflow flows from the outside through the intake air path, the intake air path, the exhaust air path, the air supply air path, the recycling bin assembly, and the discharge air path to the outside, thereby pressurizing the recycling bin assembly.

[0018] Secondly, this utility model also provides an air duct assembly for cleaning equipment, comprising:

[0019] A wind power mechanism includes a wind turbine, an air inlet duct, and an air outlet duct. The wind turbine includes an air inlet located at one end and an air outlet located around the perimeter. The air inlet is connected to the air inlet duct, and the air outlet is connected to the air outlet duct. The air outlet duct extends toward and surrounds the air inlet duct.

[0020] A duct switching mechanism is connected to the wind power mechanism. The duct switching mechanism includes a duct housing. The duct housing is provided with an air intake duct and an exhaust duct that are selectively connected to the air intake duct, and an exhaust duct and an air supply duct that are selectively connected to the air outlet duct. The exhaust duct and the air supply duct are connected to the air outlet duct at different positions.

[0021] Beneficial Effects: The air duct assembly of this utility model has an inlet air duct arranged along the axial direction of the wind turbine motor, and an outlet air duct arranged around the inlet air duct. The entire air duct structure is compact, with the inlet always located at the center of the wind turbine motor and the outlet located on the outer periphery of the inlet. The length of the air duct can be designed to be relatively short, thereby allowing for smaller height and lateral dimensions of the air duct housing. This enables the lateral dimension of the air duct housing to match the lateral dimension of the wind turbine mechanism, forming a vertically arranged structure after connection with the wind turbine mechanism. The air duct housing does not occupy the lateral space of the wind turbine mechanism. The air duct assembly has a short structural dimension, occupying only the axial space of the cleaning equipment. The axial space of cleaning equipment is usually quite ample, and the increase in size requires minimal modification to the external shape, resulting in low development costs. When this air duct assembly is applied to cleaning equipment, it facilitates the miniaturization, weight reduction, and cost reduction of the cleaning equipment structure.

[0022] Furthermore, since the air vents connecting to the outside and the air vents of the recycling bin assembly are not in the same location, the characteristic of the exhaust air path being a ring-shaped air path can be utilized to connect the exhaust air path and the gas supply air path at different locations in the ring-shaped air path. This can reduce the extension length of the two air paths, that is, reduce the length of the air duct and reduce the space occupation.

[0023] In one specific embodiment, it further includes a first switching valve and a second switching valve disposed within the air duct housing, wherein the exhaust air duct is adjacent to the intake air duct, and the air supply air duct is adjacent to the exhaust air duct; the first switching valve is disposed between the intake air duct and the exhaust air duct, and the second switching valve is disposed between the exhaust air duct and the air supply air duct.

[0024] In one specific embodiment, both the first switching valve and the second switching valve have a first position and a second position, and are both in the first position or the second position; in the first position, the exhaust duct and the suction duct are connected, and the intake duct and the delivery duct are disconnected; in the second position, the exhaust duct and the suction duct are disconnected, and the intake duct and the delivery duct are connected.

[0025] In one specific embodiment, a first partition is provided between the exhaust duct and the extraction duct, and a second partition is provided between the air supply duct and the extraction duct. The first switch valve is located in the exhaust duct and is rotatably connected to the first partition via a first rotating shaft. The second switch valve is located in the extraction duct and is rotatably connected to the second partition via a second rotating shaft.

[0026] In one specific embodiment, the first partition is provided with a first opening, and the second partition is provided with a second opening. The exhaust duct is provided with a first baffle located above the first opening, and the first baffle is provided with a third opening. The exhaust duct is provided with a second baffle located above the second opening, and the second baffle is provided with a fourth opening.

[0027] The first switch valve is located below the first baffle and the first rotating shaft is located at the junction of the first baffle and the first partition. The second switch valve is located below the second baffle and the second rotating shaft is located at the junction of the second baffle and the second partition.

[0028] In the second position, the first switching valve closes the first opening and the second switching valve closes the second opening; in the first position, the first switching valve closes the third opening and the second switching valve closes the fourth opening.

[0029] In the first position, the exhaust duct located below the first baffle, the first opening, and the exhaust duct located above the second baffle together constitute the intake duct.

[0030] In one specific embodiment, the air duct switching mechanism further includes a first driving member and a transmission mechanism. The first driving member and the transmission mechanism are both located outside the air duct housing. The first rotating shaft of the first switching valve and the second rotating shaft of the second switching valve both pass through the air duct housing and are connected to the first driving member through the transmission mechanism. The first driving member drives the first switching valve and the second switching valve to rotate synchronously.

[0031] In one specific embodiment, the first driving member and the transmission mechanism are located on the same side of the air duct housing, and the transmission mechanism is located inside the first driving member, and the first driving member is provided with a first cover.

[0032] In one specific embodiment, a third switching valve is also included, which is located in the air supply duct and rotates synchronously in the opposite direction to the second switching valve.

[0033] Thirdly, this utility model also provides a cleaning device, comprising:

[0034] The recycling bin assembly has a drain plate at the bottom that can be opened and closed;

[0035] The aforementioned air duct assembly is connected to the recycling bin assembly; wherein, the exhaust air duct, the air supply air duct, and the recycling bin assembly are selectively connected, and the exhaust air duct, the air intake air duct, and the outside environment are selectively connected.

[0036] A floor brush assembly, connected to the recycling bin assembly, includes a suction connector and a sealing flap disposed within the suction connector. The suction connector has a suction port, and the sealing flap is closable at the suction port.

[0037] The cleaning equipment has a suction mode and a discharge mode. In the suction mode, the sealing flap opens the suction port, and the suction airflow generated by the wind motor passes through the suction port sequentially through the recycling bin assembly and the exhaust duct, and is discharged from the exhaust duct. In the discharge mode, the sealing flap closes the suction port, and the suction airflow generated by the wind motor enters the recycling bin assembly sequentially through the intake duct and the delivery duct, and pressurizes the sewage in the recycling bin assembly to be discharged from the drain plate.

[0038] Beneficial Effects: In suction mode, the sealing flap opens the suction port, and the suction airflow generated by the wind turbine draws the dirt into the recycling bin assembly for recovery. The suction airflow is then discharged to the outside through the air inlet and exhaust ducts, achieving strong suction capacity. In discharge mode, the sealing flap closes the suction port, effectively sealing the airflow path between the recycling bin assembly and the floor brush assembly. This allows the suction airflow generated by the wind turbine to be completely discharged into the recycling bin assembly through the air inlet and exhaust ducts, providing sufficient air pressure to pressurize the wastewater inside and force it out of the cleaning equipment. Due to the air pressure, the wastewater flows out of the recycling bin assembly at a high speed with a strong impact force, allowing it to be quickly discharged along the drain pipe, preventing dirt from settling and clogging the drain pipe. This demonstrates strong discharge capacity.

[0039] Furthermore, powered by a wind turbine, no additional power source is needed, saving costs. The duct assembly is installed on the cleaning equipment, making it easy to install and disassemble. It can be moved with the cleaning equipment, and when sewage needs to be discharged after suction, the appropriate drainage pipe can be flexibly selected, without location constraints, offering high flexibility and a good user experience. Moreover, when used in conjunction with a base station, the cleaning equipment can use its own generated air pressure to pressurize and discharge sewage from the base station, eliminating the need for suction motors or other power devices within the base station, thereby reducing the size and cost of the base station.

[0040] In one specific implementation, in the suction mode, the water discharge plate is closed, the sealing flap is open, the recycling bin assembly is connected to the exhaust duct, the air inlet duct is connected to the exhaust duct, and the air outlet duct is connected to the exhaust duct; in the discharge mode, the water discharge plate is open, the sealing flap is closed, the recycling bin assembly is connected to the air supply duct, the air inlet duct is connected to the air intake duct, and the air outlet duct is connected to the air supply duct.

[0041] In one specific embodiment, the floor brush assembly further includes a second driving member, which is disposed outside the suction connector. The sealing flap is provided with a flap pivot, which passes through the side wall of the suction connector and is connected to the second driving member.

[0042] The second drive component is provided with a second cover, which is fastened to the outer side wall of the suction connector.

[0043] In one specific embodiment, the sealing flap includes a rotating part and a sealing part, as well as a connecting part for connecting the rotating part and the sealing part. The flap shaft passes through the rotating part and is connected to the second driving member. The sealing part matches the suction port.

[0044] In one specific embodiment, the cleaning equipment also has a back-blowing dirt mode. In the back-blowing dirt mode, the sealing flap opens the suction port, and the suction airflow generated by the wind motor enters the recycling bin assembly through the air inlet duct and the air delivery duct in sequence, and is blown from the recycling bin assembly to the suction port.

[0045] In one specific embodiment, the recycling bin assembly includes a recycling bin and a filter element, the upper end of the recycling bin is provided with an air inlet and outlet, and the filter element is detachably installed at the air inlet and outlet.

[0046] The lower end of the recycling bin is provided with a sewage inlet and a sewage outlet. The drain plate is detachably located at the sewage outlet. The sewage suction connector is also provided with a connection port opposite to the sewage suction port. The connection port is connected to the sewage inlet of the recycling bin through a flexible hose.

[0047] In one specific embodiment, the system further includes a fuselage housing, and both the wind power mechanism and the air duct switching mechanism are installed inside the fuselage housing;

[0048] The wind power mechanism also includes a motor silencer, a motor bracket, and a bracket cover. The motor silencer covers the wind turbine, the wind turbine is mounted on the motor bracket, and the bracket cover covers the motor bracket and is detachably connected to the duct housing.

[0049] In one specific embodiment, the lower end of the bracket cover is snapped to the upper end of the duct housing by a buckle and a hook, and a sealing ring is provided at the connection between the bracket cover and the duct housing.

[0050] Fourthly, this utility model also provides a cleaning system, including a base station and the aforementioned cleaning equipment. The cleaning equipment can be placed on the base station. The base station includes a base and a docking interface disposed on the base, as well as a sewage pipe connected to the docking interface and extending to the outside of the base. The drain outlet of the recycling bin assembly is connected to the docking interface.

[0051] Beneficial effects: When the cleaning equipment is used in conjunction with the base station, it can be removed from the base station to perform vacuuming when needed. After vacuuming, it can be returned to the base station to discharge wastewater. The drain outlet of the recycling bin assembly is then connected to the interface on the base station to activate the discharge mode. Wastewater can be pressurized in the recycling bin assembly and discharged from the base station, eliminating the need for a suction motor or other power device in the base station. This reduces the size and cost of the base station. Furthermore, the cleaning system includes the cleaning equipment, which has the same effect as the cleaning equipment and will not be elaborated further here.

[0052] Fifthly, this utility model also provides a cleaning system, including a base station and a cleaning device that can be placed on the base station;

[0053] The base station includes a base and a sewage tank disposed within the base, as well as the aforementioned air duct assembly. The exhaust air duct and the air supply air duct of the air duct assembly are selectively connected to the sewage tank.

[0054] The cleaning equipment includes a recycling bin assembly and a floor brush assembly. The recycling bin assembly is connected to the floor brush assembly, and the drain outlet of the recycling bin assembly is connected to the inlet of the wastewater tank.

[0055] The cleaning system has a suction mode and a discharge mode. In the suction mode, the drain outlet of the recycling bin assembly is open, the wastewater tank is connected to the exhaust duct, the air inlet duct is connected to the exhaust duct, and the air outlet duct is connected to the exhaust duct. In the discharge mode, the drain outlet of the recycling bin assembly is closed, the wastewater tank is connected to the air supply duct, the air inlet duct is connected to the air supply duct, and the air outlet duct is connected to the air supply duct.

[0056] Beneficial effects: By installing the air duct assembly in the base station, during sewage suction, the dirt in the cleaning equipment's recovery bin assembly is sucked into the base station's wastewater tank; during sewage discharge, the dirt in the wastewater tank is pressurized and discharged outside the base station. Because the air duct assembly occupies a small overall volume, the increase in the base station's volume after installation is minimal. Compared to existing base station designs, the base station of this invention is smaller. Furthermore, due to the axial arrangement of the air duct, its short length and lack of bends make it less prone to dirt accumulation and easier to clean. Attached Figure Description

[0057] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0058] Figure 1 This is a three-dimensional structural diagram of a cleaning device placed on a base station according to an embodiment of the present invention;

[0059] Figure 2 for Figure 1 A cross-sectional view showing the cleaning equipment placed on the base station;

[0060] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0061] Figure 4This is a cross-sectional schematic diagram of the cleaning equipment of this utility model in the suction mode, showing the air duct switching mechanism combined with the air force mechanism.

[0062] Figure 5 This is a cross-sectional schematic diagram of the suction connector of the cleaning device in suction mode according to an embodiment of the present invention;

[0063] Figure 6 This is a cross-sectional schematic diagram of the air duct switching mechanism combined with the wind power mechanism in the sewage discharge mode of the cleaning equipment of this utility model embodiment;

[0064] Figure 7 This is a cross-sectional schematic diagram of the suction connector of the cleaning equipment in the sewage discharge mode according to an embodiment of the present utility model;

[0065] Figure 8 This is a cross-sectional schematic diagram of another air duct switching mechanism combined with a wind power mechanism in the suction mode of the cleaning equipment of this utility model embodiment;

[0066] Figure 9 for Figure 8 The diagram shows a cross-sectional view of the suction connector of the cleaning equipment in suction mode.

[0067] Figure 10 This is a cross-sectional schematic diagram of another air duct switching mechanism combined with a wind power mechanism in the sewage discharge mode of the cleaning equipment of this utility model embodiment;

[0068] Figure 11 for Figure 10 The diagram shows a cross-sectional view of the suction connector of the cleaning equipment in sewage discharge mode;

[0069] Figure 12 This is an exploded view of the wind power mechanism and the air duct switching mechanism in the cleaning equipment of this utility model embodiment, which shows the first crank-connecting rod mechanism;

[0070] Figure 13 This is an exploded view of the wind mechanism and air duct switching mechanism in the cleaning equipment of this utility model embodiment, which shows the first gear transmission mechanism;

[0071] Figure 14 This is an exploded view of the wind mechanism and another air duct switching mechanism in the cleaning equipment of this utility model embodiment, which shows the second crank connecting rod mechanism and the second gear transmission mechanism.

[0072] Figure 15 This is a partial structural diagram of the floor brush assembly in the cleaning equipment according to an embodiment of the present utility model;

[0073] Figure 16 This is a schematic diagram of the sealing flap in the cleaning equipment of this utility model embodiment;

[0074] Figure 17 This is a schematic diagram illustrating the principle of the cleaning equipment for suction in an embodiment of this utility model;

[0075] Figure 18 This is a schematic diagram illustrating the principle of wastewater discharge from the cleaning equipment according to an embodiment of the present invention.

[0076] Figure 19 This is a schematic diagram of the structure of the air duct assembly in the base station according to an embodiment of the present invention.

[0077] Explanation of reference numerals in the attached figures:

[0078] 100. Fuselage assembly; 101. Fuselage housing; 102. Wind power mechanism; 1021. Wind turbine; 10211. Air inlet; 10212. Air outlet; 1022. Motor silencer cover; 1023. Motor bracket; 1024. Bracket cover; 1025. Air inlet duct; 1026. Air outlet duct;

[0079] 200. Air duct switching mechanism; 201. Air duct housing; 202. Exhaust air duct; 203. Exhaust air duct; 204. Intake air duct; 205. Supply air duct; 206. First switching valve; 207. Second switching valve; 208. Third switching valve; 209. First rotating shaft; 210. Second rotating shaft; 211. Third rotating shaft; 212. First partition; 213. Second partition; 214. First baffle; 215. Second baffle; 216. Third baffle; 217. First opening; 218. Second opening 219. Third opening; 220. Fourth opening; 221. Fifth opening; 222. First lever; 223. Second lever; 224. First micro switch; 225. Second micro switch; 226. First drive component; 227. Rotary arm; 228. Connecting rod; 229. Crank; 230. First cover; 231. Drive gear; 232. Transition gear; 233. Driven gear; 234. Third gear; 235. Side-connected duct; 236. Side-connected duct rubber-coated assembly; 237. Duct adapter;

[0080] 300. Floor brush assembly; 301. Suction connector; 302. Connector switch valve; 3011. Suction port; 3012. Connection port; 303. Sealing flap; 3031. Rotating part; 3032. Connection part; 3033. Sealing part; 304. Flip hinge; 305. Sealing cover; 306. Third lever; 307. Second drive component; 308. Second cover; 309. Solution tank; 310. Hoses; 311. Third micro switch; 312. Fourth micro switch;

[0081] 400. Recycling bin assembly; 401. Recycling bin; 402. Filter element; 403. Sewage inlet; 404. Drain outlet; 405. Water discharge plate; 406. Air inlet and outlet;

[0082] 500. Base station; 501. Base; 5011. Interface; 502. Wastewater tank; 503. Air duct assembly; 504. Connecting pipe; 505. Sewage pipe;

[0083] 600. Handle assembly. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0085] The following is combined Figures 1 to 18 The following describes embodiments of the present invention.

[0086] According to an embodiment of this utility model, in one aspect, an air duct is provided, which is mainly used in cleaning equipment. Wherein, as... Figure 1 and Figure 2 As shown, the cleaning equipment includes a wind mechanism 102 for driving airflow and a recycling bin assembly 400 for collecting dirt, the recycling bin assembly 400 being located at the bottom of the wind mechanism 102.

[0087] Specifically, the wind path includes:

[0088] The air inlet path enters the wind power mechanism 102 axially from the bottom of the wind power mechanism 102;

[0089] The air outlet path flows out of the wind power mechanism 102 circumferentially from the upper part of the wind power mechanism 102, forming a ring-shaped air path around the wind power mechanism 102, and flows axially towards the bottom of the wind power mechanism 102.

[0090] The exhaust duct can be switched on and off to connect the exhaust duct to the outside.

[0091] The air intake duct can be switched on and off to connect the air intake duct to the outside environment;

[0092] The air supply path can be switched on and off to connect the outlet air path and the recovery tank assembly 400, and is used to pressurize the recovery tank assembly 400.

[0093] The exhaust duct can be switched on and off to connect the air inlet duct and the recycling bin assembly 400, and is used to draw the recycling bin assembly 400 into a negative pressure state.

[0094] In this embodiment, by axially guiding the airflow from the upper part of the wind power mechanism 102 to the bottom of the wind power mechanism 102 through an annular air outlet path, the space inside the cleaning equipment where the wind power mechanism 102 is set is fully utilized; and the recycling bin assembly 400 is located at the bottom of the wind power mechanism 102, and the airflow guided to the bottom of the wind power mechanism 102 is directly connected to the recycling bin assembly 400. The airflow path between the wind power mechanism 102 and the recycling bin assembly 400 is short, and the structural dimensions of the related air duct components are short, occupying only the axial space of the cleaning equipment. The axial space of the cleaning equipment is usually quite spacious, and the increase in axial size requires little modification to the shape, resulting in low R&D costs.

[0095] In one specific embodiment, the exhaust air path and the air supply air path are connected to the outlet air path at different locations. Since the air vent connecting to the outside and the air vent of the recycling bin assembly 400 are not in the same location, by utilizing the characteristic that the outlet air path is a ring-shaped air path, the exhaust air path and the air supply air path can be connected at different locations in the ring-shaped air path, which can reduce the extension length of the two air paths, that is, reduce the length of the air duct and reduce the space occupation.

[0096] In one specific embodiment, when the exhaust duct and the exhaust duct are connected, the inlet duct and the outlet duct are disconnected. The airflow flows from the recycling bin assembly 400 through the exhaust duct, inlet duct, outlet duct, and exhaust duct to the outside, thereby creating a negative pressure state in the recycling bin assembly 400. This facilitates the suction of dirt into the recycling bin assembly 400 for storage.

[0097] In this embodiment, when the air intake path and the air delivery path are connected, the exhaust path and the ventilation path are disconnected. The airflow from the outside flows through the air intake path, the air supply path, the air outlet path, and the air delivery path to the recycling tank assembly 400, thereby pressurizing the recycling tank assembly 400. Sufficient air pressure is provided inside the recycling tank assembly 400 to facilitate pressurizing the wastewater inside, thus pressurizing and discharging the wastewater from the recycling tank assembly 400 into the cleaning equipment.

[0098] In one specific embodiment, the intake air path and the exhaust air path are located between the exhaust air path and the supply air path. The air paths are nested within the radial space of the cleaning equipment, resulting in a small space footprint.

[0099] In one specific embodiment, the cleaning equipment further includes a first switching valve 206 and a second switching valve 207. The exhaust air path and the intake air path share the first switching valve 206, selectively switching one of them on or off. The supply air path and the exhaust air path share the second switching valve 207, selectively switching one of them on or off. Both the exhaust air path and the intake air path are connected to the outside and switched using the same valve, meaning both air paths are connected to the same air outlet. This results in short air paths, small duct sizes, and minimal space occupation. Similarly, the supply air path and the exhaust air path also use the same valve for switching, meaning both air paths are connected to the same air outlet. This also results in short air paths, small duct sizes, and minimal space occupation.

[0100] In one specific embodiment, it also includes a suction air path and a discharge air path, which can be switched on and off to connect the recycling bin assembly 400 and the outside. When the suction air path, the discharge air path, and the suction air path are connected, the intake air path, the air supply air path, and the discharge air path are disconnected. The airflow flows from the outside through the suction air path, the recycling bin assembly 400, the suction air path, the intake air path, the outlet air path, and the exhaust air path to the outside, thereby drawing the recycling bin assembly 400 into a negative pressure state.

[0101] In this embodiment, when the air intake duct, air supply duct, and sewage discharge duct are connected, the exhaust duct, exhaust duct, and sewage suction duct are disconnected. Airflow from the outside passes through the air intake duct, air supply duct, air outlet duct, air supply duct, recycling bin assembly 400, and sewage discharge duct to the outside, thereby pressurizing the recycling bin assembly 400. By setting up the sewage suction duct and sewage discharge duct, it is convenient to draw dirt from the ground into the recycling bin assembly 400 through the sewage suction duct and then pressurize and discharge the dirt from the recycling bin assembly 400 through the sewage discharge duct.

[0102] On the other hand, such as Figure 4 , Figure 6 As shown, this utility model also provides an air duct assembly for cleaning equipment, specifically including:

[0103] The wind power mechanism 102 includes a wind turbine 1021, an air inlet duct 1025, and an air outlet duct 1026. The wind turbine 1021 includes an air inlet 10211 disposed at one end and an air outlet 10212 disposed around the perimeter. The air inlet 10211 is connected to the air inlet duct 1025, and the air outlet 10212 is connected to the air outlet duct 1026. The air outlet duct 1026 extends toward and surrounds the air inlet duct 1025.

[0104] The air duct switching mechanism 200 is connected to the wind power mechanism 102. The air duct switching mechanism 200 includes an air duct housing 201. The air duct housing 201 is provided with an air intake duct 204 and an air extraction duct 202 that are selectively connected to the air intake duct 1025, and an exhaust duct 203 and an air supply duct 205 that are selectively connected to the air outlet duct 1026. The exhaust duct 203 and the air supply duct 205 are connected to the air outlet duct 1026 at different positions.

[0105] The air duct assembly of this utility model has an inlet air duct 1025 arranged along the axial direction of the wind turbine 1021, and an outlet air duct 1026 arranged around the inlet air duct 1025. The entire air duct structure is compact, with the air inlet always located at the center of the wind turbine 1021 and the air outlet located on the outer periphery of the air inlet. The length of the air duct can be designed to be relatively short, thereby allowing the height and lateral dimensions of the air duct housing 201 to be designed to be smaller. This enables the lateral dimension of the air duct housing 201 to match the lateral dimension of the wind turbine 102, forming a vertically arranged structure after connection with the wind turbine 102. The air duct housing 201 does not occupy the lateral space of the wind turbine 102. The air duct assembly has a short structural dimension, occupying only the axial space of the cleaning equipment. The axial space of the cleaning equipment is usually quite spacious, and the increase in size requires minimal modification to the shape, resulting in low development costs.

[0106] When this air duct component is applied to cleaning equipment, it helps to make the cleaning equipment structure smaller, lighter, and reduce costs.

[0107] Furthermore, since the air vents connecting to the outside and the air vents of the recycling bin assembly 400 are not in the same location, the exhaust air duct and the gas supply air duct can be connected at different locations in the annular air duct by taking advantage of the fact that the exhaust air duct is a ring air duct. This reduces the extension length of the two air ducts, that is, reduces the length of the air duct and reduces the space occupied.

[0108] Additionally, it should be noted that the air intake path flows through the air intake duct 1025, the air outlet path flows through the air outlet duct 1026, the exhaust path flows through the exhaust duct 203, the air intake path flows through the air intake duct 204, the air supply path flows through the air supply duct 205, and the exhaust path flows through the exhaust duct 202.

[0109] In a specific embodiment, such as Figure 4 and Figure 6As shown, it also includes a first switching valve 206 and a second switching valve 207 disposed within the air duct housing 201. The exhaust air duct 203 is adjacent to the intake air duct 204, and the air supply air duct 205 is adjacent to the exhaust air duct 202. The first switching valve 206 is disposed between the intake air duct 204 and the exhaust air duct 203, and the second switching valve 207 is disposed between the exhaust air duct 202 and the air supply air duct 205. The annular air outlet air duct 1026 causes the exhaust air duct 203 and the air supply air duct 205 connected to it to surround the intake air duct 204 and the exhaust air duct 202. The intake air duct 204 and the exhaust air duct 203 are adjacent and can be switched on or off by the first switching valve 206, and the exhaust air duct 202 and the air supply air duct 205 are adjacent and can be switched on or off by the second switching valve 207, resulting in high space utilization.

[0110] In one specific embodiment, both the first switching valve 206 and the second switching valve 207 have a first position and a second position, and are both in the first or second position. In the first position, the exhaust duct 203 and the suction duct 202 are connected, while the intake duct 204 and the delivery duct 205 are disconnected. In the second position, the exhaust duct 203 and the suction duct 202 are disconnected, while the intake duct 204 and the delivery duct 205 are connected. When both switching valves are closed, the suction duct 202 is connected to the exhaust duct 203. When both switching valves are open, a portion of the exhaust duct 203 and a portion of the suction duct 202 constitute the intake duct 204, and the intake duct 204 is connected to the delivery duct 205. The air path design is ingenious, making full use of the internal space of the duct housing 201 to form a duct assembly that is convenient for switching and has a compact structure. When this duct assembly is applied to cleaning equipment, it is beneficial for miniaturizing and lightening the structure of the cleaning equipment and reducing costs.

[0111] If the first switching valve 206 and the second switching valve 207 are in the first and second positions respectively, the air intake or exhaust of the wind turbine 102 will be blocked, resulting in abnormal wind pressure and abnormal power of the wind turbine 1021. The controller will respond promptly, report an error, and stop the wind turbine 1021. However, in the existing technology, if the switching valves are misaligned, the air intake and exhaust of the motor will still be smooth, making it difficult for the controller to detect the abnormality. The user can only perceive the abnormal operation of the equipment, resulting in a poor user experience.

[0112] In one specific embodiment, a first partition 212 is provided between the exhaust duct 203 and the extraction duct 202, and a second partition 213 is provided between the air supply duct 205 and the extraction duct 202. A first switching valve 206 is located in the exhaust duct 203 and is rotatably connected to the first partition 212 via a first rotating shaft 209. A second switching valve 207 is located in the extraction duct 202 and is rotatably connected to the second partition 213 via a second rotating shaft 210. Three ducts are separated by two partitions, resulting in a simple structure. The two partitions extend along the height of the duct housing 201, allowing the three ducts to be arranged side-by-side. The airflow is primarily upward and downward, with no lateral flow. Compared to lateral ducts, the ducts in this embodiment are shorter and occupy less space.

[0113] In one specific embodiment, the first partition 212 is provided with a first opening 217, and the second partition 213 is provided with a second opening 218. The exhaust duct 203 is provided with a first baffle 214 located above the first opening 217, and the first baffle 214 is provided with a third opening 219. The exhaust duct 202 is provided with a second baffle 215 located above the second opening 218, and the second baffle 215 is provided with a fourth opening 220.

[0114] In this embodiment, each partition is arranged vertically, each baffle is arranged horizontally, and connected partitions and baffles can be arranged vertically. The first switching valve 206 and the first rotating shaft 209 are arranged in the exhaust duct 202, and the second switching valve 207 and the second rotating shaft 210 are arranged in the air supply duct 205.

[0115] The first switching valve 206 is located below the first baffle 214, and the first rotating shaft 209 is located at the junction of the first baffle 214 and the first partition 212. This arrangement allows the first switching valve 206 to accommodate both the first opening 217 and the third opening 219. The second switching valve 207 is located below the second baffle 215, and the second rotating shaft 210 is located at the junction of the second baffle 215 and the second partition 213. This arrangement allows the second switching valve 207 to accommodate both the second opening 218 and the fourth opening 220. Furthermore, to ensure smooth rotation of each rotating shaft, the junctions where the shafts are installed are rounded to accommodate the curved surfaces of the shafts.

[0116] In the second position, the first switching valve 206 closes the first opening 217 and the second switching valve 207 closes the second opening 218; in the first position, the first switching valve 206 closes the third opening 219 and the second switching valve 207 closes the fourth opening 220.

[0117] In the first position, the exhaust duct 203 located below the first baffle 214, the first opening 217, and the suction duct 202 located above the second baffle 215 together constitute the intake duct 204. Thus, the intake duct 204 is composed of two parts joined together, resulting in a more compact duct structure and a smaller footprint.

[0118] In order to automatically drive the first switching valve 206 and the second switching valve 207 to rotate, in a specific embodiment, the duct switching mechanism 200 further includes a first driving member 226 and a transmission mechanism. Both the first driving member 226 and the transmission mechanism are located outside the duct housing 201. The first rotating shaft 209 of the first switching valve 206 and the second rotating shaft 210 of the second switching valve 207 both pass through the duct housing 201 and are connected to the first driving member 226 via the transmission mechanism. The first driving member 226 drives the first switching valve 206 and the second switching valve 207 to rotate synchronously. By setting up the transmission mechanism, the two switching valves can be linked, so that one driving member can simultaneously drive the rotation of both switching valves, improving transmission efficiency and saving costs.

[0119] Furthermore, the first switching valve 206 and the second switching valve 207 are located inside the duct housing 201, and multiple partitions and baffles are also provided inside the duct housing 201. In this embodiment, the first driving component 226 and the transmission mechanism are both located outside the duct housing 201, which can save space inside the duct housing 201 and ensure that there is no interference with the components inside the duct housing 201. Moreover, placing the first driving component 226 and the transmission mechanism outside the duct housing 201 makes installation convenient. This arrangement makes reasonable use of the available space inside and outside the duct housing 201, and can miniaturize the duct switching mechanism 200, thus making it suitable for the compact installation space of cleaning equipment such as floor scrubbers.

[0120] In one specific embodiment, the first driving element 226 may be a geared motor, such as... Figure 12 and Figure 13 As shown, the transmission mechanism can be a first crank-connecting rod mechanism or a first gear transmission mechanism. The first rotating shaft 209 of the first switching valve 206 and the second rotating shaft 210 of the second switching valve 207 are respectively connected to the first crank-connecting rod mechanism or the first gear transmission mechanism, and then connected to the geared motor through the first crank-connecting rod mechanism or the first gear transmission mechanism. The geared motor drives the first switching valve 206 and the second switching valve 207 to rotate synchronously.

[0121] To describe this embodiment more clearly, the structures of the first crank-connecting rod mechanism and the first gear transmission mechanism are described separately.

[0122] First crank-connecting rod mechanism:

[0123] like Figure 12In the first crank-connecting rod mechanism, there are connecting rods 228 and two cranks 229. Connecting rod 228 includes a central connecting portion 3032 and connecting plates on opposite sides of the central connecting portion 3032. Each connecting plate has a connecting shaft at its end perpendicular to the direction of the connecting plate. One end of a first rotating shaft 209 is fixedly connected to one of the cranks 229, and one end of a second rotating shaft 210 is fixedly connected to the other crank 229. Each crank 229 has a connecting hole that can be rotatably connected to the connecting shaft. Each connecting shaft is inserted into the corresponding connecting hole to realize the connecting rod mechanism. 228 is connected to crank 229. The output shaft of the first drive member 226 is connected to the middle connecting part 3032 of the connecting rod 228. Thus, when the output shaft of the first drive member 226 rotates, it can drive the connecting rod 228 to rotate. The rotation of the connecting rod 228 will drive the crank 229 to rotate. Since the first rotating shaft 209 and the second rotating shaft 210 are fixedly connected to the crank 229, the rotation of the crank 229 will drive the first rotating shaft 209 and the second rotating shaft 210 to rotate, thereby driving the first switching valve 206 and the second switching valve 207 to rotate synchronously and in the same direction.

[0124] It should also be noted that the fixed connection between the first rotating shaft 209 and the second rotating shaft 210 and the crank 229 can be achieved by an interference fit between the hole and the shaft, or by setting both the hole and the shaft to non-circular shapes, such as square or rhomboid. This setting can reduce the precision requirements of the hole and shaft fit. As for the rotational connection between the crank 229 and the connecting shaft, it can be achieved by using rolling bearings, which can also reduce the frictional force generated by rotation, thereby reducing frictional noise and extending the service life of the entire mechanism.

[0125] First gear transmission mechanism:

[0126] like Figure 13 As shown, the first gear transmission mechanism includes a driving gear 231, two intermediate gears 232, and two driven gears 233. The driving gear 231 has a connecting hole in its center. The two intermediate gears 232 are respectively located on opposite sides of the driving gear 231 and mesh with it. The two driven gears 233 are respectively located on opposite sides of the two intermediate gears 232 and mesh with their corresponding intermediate gears 232. The centers of the two driven gears 233 each have shaft holes. One end of the first rotating shaft 209 and the second rotating shaft 210... The shaft holes of the two driven gears 233 are fixedly connected to the center of the two driven gears 233 respectively. The connecting hole of the driving gear 231 is connected to the output shaft of the first driving member 226. The first driving member 226 drives the driving gear 231 to rotate. Simultaneously, the two transition gears 232 rotate together with the driving gear 231 in opposite directions. At the same time, the two driven gears 233 also rotate synchronously. Due to the presence of the transition gears 232, the two driven gears 233 rotate in the same direction, thereby driving the first switching valve 206 and the second switching valve 207 to rotate synchronously and in the same direction.

[0127] In one specific embodiment, the first driving member 226 and the transmission mechanism are located on the same side of the duct housing 201, which is equivalent to the first driving member 226 and the transmission mechanism being connected to the same end of the first rotating shaft 209 and the second rotating shaft 210. The transmission mechanism is located inside the first driving member 226. The first driving member 226 is provided with a first cover 230, which covers the first driving member 226 and covers the exposed ends of the transmission mechanism, the first rotating shaft 209 and the second rotating shaft 210, thereby protecting each component and making the overall appearance of the duct housing 201 simpler. The first cover 230 is fastened to the outer wall of the duct housing 201. For example, multiple studs can be provided on the outer wall of the duct housing 201, and threaded holes can be provided on the studs. Multiple mounting holes are provided around the first cover 230. The first cover 230 is fastened to the duct housing 201 by screws or bolts passing through the mounting holes of the first cover 230 and the threaded holes of the duct housing 201. By setting studs, it can be ensured that the threaded hole does not penetrate the air duct housing 201, thus ensuring the internal airtightness of the air duct housing 201.

[0128] In one specific embodiment, a first lever 222 is fixedly provided at the end of the first rotating shaft 209 of the first switching valve 206 away from the first driving member 226, and a second lever 223 is fixedly provided at the end of the second rotating shaft 210 of the second switching valve 207 away from the first driving member 226. Both the first lever 222 and the second lever 223 are located outside the air duct housing 201. That is, the first lever 222 and the second lever 223 are respectively located on opposite sides of the air duct housing 201, along with the first driving member 226 and the transmission mechanism. Both ends of the first rotating shaft 209 and the second rotating shaft 210 penetrate the air duct housing 201, with one end fixedly connected to the first lever 222 and the second lever 223, and the other end fixedly connected to the transmission mechanism. This allows for the rational use of the external space of the air duct housing 201 and facilitates the coordinated operation of various components.

[0129] like Figure 12 and Figure 13As shown, the duct switching mechanism 200 also includes a first micro switch 224 and a second micro switch 225. The first micro switch 224 and the second micro switch 225 are installed on the outer wall of the duct housing 201 and correspond one-to-one with the positions of the first lever 222 and the second lever 223. In the second position and the first position, either the first lever 222 or the second lever 223 triggers the first micro switch 224 or the second micro switch 225. The micro switch is a mechanical switch, including a body and a spring on one side of the body. Its principle is that when the spring is displaced to a critical point, it generates an instantaneous action, causing the moving contact at the end of the spring to quickly connect or disconnect with the fixed contact on the body. The micro switch is triggered when the first lever 222 or the second lever 223 touches the spring. Specifically, a first microswitch 224 is correspondingly configured with a first lever 222, and a second microswitch 225 is correspondingly configured with a second lever 223. In the second position, the first lever 222 touches the reed on the first microswitch 224 to turn on the first microswitch 224, while the second lever 223 moves away from the reed on the second microswitch 225 to turn off the second microswitch 225. In the first position, the second lever 223 touches the reed on the second microswitch 225 to turn on the second microswitch 225, while the first lever 222 moves away from the reed on the first microswitch 224 to turn off the first microswitch 224. Using whether the lever touches the reed of the microswitch to determine the position of the switching valve provides higher accuracy and reliability. This allows for accurate determination of whether the first switching valve 206 and the second switching valve 207 have rotated to the correct position, providing a reliable basis for duct switching.

[0130] Of course, it is not limited to setting a micro switch; other detection methods can also be set, as long as they can achieve the same effect.

[0131] It needs to be explained that "in the first position and the second position, either the first lever 222 or the second lever 223 triggers the first micro switch 224 and the second micro switch 225" can be triggered in the following four ways:

[0132] 1. In the first position, the first lever 222 triggers the first micro switch 224, at which time the second lever 223 moves away from the second micro switch 225;

[0133] 2. In the first position, the second lever 223 triggers the first micro switch 224, at which time the first lever 222 moves away from the second micro switch 225.

[0134] 3. In the second position, the first lever 222 triggers the first micro switch 224, at which time the second lever 223 moves away from the second micro switch 225;

[0135] 4. In the second position, the second lever 223 triggers the first micro switch 224, at which time the first lever 222 moves away from the second micro switch 225;

[0136] In all four scenarios above, regardless of whether the first switching valve 206 or the second switching valve 207 is in the second or first position, only one microswitch is triggered at a time. Two microswitches represent two different positions. For example, if the first microswitch 224 is triggered, it means that both switching valves have turned to the second position. If the second microswitch 225 is triggered, it means that both switching valves have turned to the first position.

[0137] In another embodiment, such as Figure 8 , Figure 10 and Figure 14 As shown, it also includes a third switching valve 208, which is located in the air supply duct 205 and rotates synchronously in the opposite direction to the second switching valve 207.

[0138] Specifically, the third switching valve 208 is equipped with a third rotating shaft 211, which is combined with Figure 4 As shown, a first partition 212 is provided between the exhaust duct 202 and the exhaust duct 203, and the first partition 212 has a first opening 217. A second partition 213 is provided between the exhaust duct 202 and the air supply duct 205, and the second partition 213 has a second opening 218. A first baffle 214 is provided in the exhaust duct 203 above the first opening 217, and the first baffle 214 has a third opening 219. A second baffle 215 is provided in the exhaust duct 202 above the second opening 218, and the second baffle 215 has a fourth opening 220. A third baffle 216 is provided in the air supply duct 205 above the second opening 218, and the third baffle 216 has a fifth opening 221.

[0139] The first switch valve 206 is located below the first baffle 214 and the first rotating shaft 209 is located at the junction of the first baffle 214 and the first partition 212; the second switch valve 207 is located below the second baffle 215 and the second rotating shaft 210 is located at the junction of the second baffle 215 and the second partition 213; the third switch valve 208 is located above the third baffle 216 and the third rotating shaft 211 is located at the junction of the third baffle 216 and the second partition 213.

[0140] In the second position, the first switch valve 206 closes the first opening 217, the second switch valve 207 closes the second opening 218, and the third switch valve 208 closes the fifth opening 221. In the first position, the first switch valve 206 closes the third opening 219, the third switch valve 208 opens the fifth opening 221, and the second switch valve 207 closes the fourth opening 220.

[0141] In the first position, the exhaust duct 203 located below the first baffle 214, the first opening 217, and the exhaust duct 202 located above the second baffle 215 together constitute the intake duct 204.

[0142] Compared to the embodiment with two switching valves, this embodiment has three switching valves, and correspondingly, three baffles are provided. The other structures are similar to the previous embodiment, and will not be described again here.

[0143] The difference between this embodiment and the previous embodiment is that by setting a third switching valve 208, the airtightness of the first switching valve 206 can be further enhanced. The first switching valve 206 is set in the exhaust duct 202. When suctioning, the suction airflow in the exhaust duct 202 may cause the first switching valve 206 and the first opening 217 to not fit tightly enough, resulting in poor airtightness. Due to the presence of the third switching valve 208, the fifth opening 221 is sealed. Even if the airtightness between the first switching valve 206 and the first opening 217 is not tight, the third switching valve 208 can block the airflow leaking from the first switching valve 206, thereby adding double protection to the sealing of the first switching valve 206.

[0144] Furthermore, it should be noted that since the third switching valve 208 is completely driven to rotate by the second switching valve 207, a micro switch is not required at the third switching valve 208. The position of each switching valve can be determined entirely by triggering the micro switch with only the first switching valve 206 and the second switching valve 207.

[0145] In the embodiments with two switching valves and the embodiments with three switching valves, the first switching valve 206, the second switching valve 207 and the third switching valve 208 all include a switching valve body and an elastic seal surrounding the switching valve body. The switching valve body can be a plastic plate, and the elastic seal can be a rubber gasket or a silicone gasket. The provision of an elastic seal helps to improve the sealing performance.

[0146] It should be noted that the second opening 218 serves as the opening for connecting and disconnecting the air supply duct 205 and the recovery bucket assembly 400.

[0147] In one specific embodiment, the end of the air duct housing 201 that is connected to the wind turbine 1021 is always connected, and the air path switching is unobstructed.

[0148] In one specific embodiment, the second switching valve 207 and the third switching valve 208 are driven to rotate synchronously in opposite directions through the second gear transmission mechanism, and the first switching valve 206 and the second switching valve 207 are driven to rotate synchronously in the same direction through the second crank-connecting rod mechanism.

[0149] Specifically, the second crank-connecting rod mechanism has the same structure as the first crank-connecting rod mechanism, which will not be described in detail here. It is used to drive the first switching valve 206 and the second switching valve 207 to rotate in the same direction. The second gear transmission mechanism includes two meshing gears and a rotating arm 227. One of the gears can be mounted on the rotating arm 227. The rotating arm 227 and one of the cranks 229 are rotatably connected to the connecting shaft of the connecting rod 228. When the rotating arm 227 rotates, the gear rotates along with it, thereby driving the other gear to rotate in the opposite direction, so as to realize the reverse rotation of the second switching valve 207 and the third switching valve 208.

[0150] In one specific embodiment, the first switching valve 206, the second switching valve 207, and the third switching valve 208 are driven to rotate synchronously through a third gear transmission mechanism (not shown in the figure), wherein the second switching valve 207 and the third switching valve 208 rotate in opposite directions, and the first switching valve 206 and the second switching valve 207 rotate in the same direction.

[0151] Specifically, the third gear transmission mechanism can be based on the first gear transmission mechanism, with the addition of a small gear that meshes with the driven gear 233. The two driven gears 233 drive the first switch valve 206 and the second switch valve 207 to rotate in the same direction, while the small gear drives the third switch valve 208 to rotate in the opposite direction to the second switch valve 207.

[0152] In a specific embodiment, such as Figures 12 to 14 As shown, the air duct switching mechanism 200 also includes a side-connecting air duct 235. One end of the side-connecting air duct 235 is connected to and connected to the air outlet of the exhaust air duct 203. The side-connecting air duct 235 is arranged around the air duct housing 201, and the other end is connected to the outside. By setting the side-connecting air duct 235, the position of the air outlet can be flexibly set as needed. Furthermore, in order to better integrate the side-connecting air duct 235 with the air duct housing 201, a stepped surface can be set on the outer wall of the air duct housing 201. The side-connecting air duct 235 extends along the stepped surface, and the outer wall of the side-connecting air duct 235 can be flush with the outer wall of the air duct housing 201. This not only makes the structure of the air duct housing 201 more compact, but also makes the installation of the side-connecting air duct 235 and the air duct housing 201 more coordinated and does not occupy any additional space.

[0153] Furthermore, a duct adapter 237 can be connected to one end of the side-connecting duct 235. The duct adapter 237 helps extend the length of the side-connecting duct 235, especially at the corner of the duct housing 201, facilitating the reversal of the duct outlet direction, for example, extending from one side of the duct housing 201 to the adjacent side. The side-connecting duct 235 and the duct adapter 237 are connected by a side-connecting duct rubber-coated assembly 236 to ensure a tight seal.

[0154] It should be noted that the micro switch is located on the same side as the side duct 235. The side duct 235 should be arranged to avoid the micro switch.

[0155] On the other hand, this embodiment of the invention also provides a cleaning device, such as... Figure 1 and Figure 2 As shown, it includes a recycling bin assembly 400, with a water discharge plate 405 that can be opened and closed at the bottom;

[0156] The aforementioned air duct assembly is connected to the recycling bin assembly 400; wherein, the exhaust air duct 202 and the air supply air duct 205 are selectively connected to the recycling bin assembly 400, and the exhaust air duct 203 and the air intake air duct 204 are selectively connected to the outside; the floor brush assembly 300 is connected to the recycling bin assembly 400, and includes a suction connector 301 and a sealing flap 303 disposed in the suction connector 301. The suction connector 301 is provided with a suction port 3011, and the sealing flap 303 is closably disposed at the suction port 3011;

[0157] The cleaning equipment has a suction mode and a discharge mode, such as Figure 4 and Figure 5 As shown, in suction mode, the sealing flap 303 opens the suction port 3011, and the suction airflow generated by the wind turbine 1021 passes through the suction port 3011, sequentially through the recycling bin assembly 400 and the exhaust duct 202, and is discharged from the exhaust duct 203. Figure 6 and Figure 7 As shown, in the sewage discharge mode, the sealing flap 303 closes the sewage suction port 3011, and the suction airflow generated by the wind turbine 1021 enters the recycling bin assembly 400 through the air intake duct 204 and the air delivery duct 205 in sequence, and pressurizes the sewage in the recycling bin assembly 400 to be discharged from the drain plate 405. The arrows in the figure indicate the airflow direction.

[0158] In the cleaning equipment of this embodiment, in the suction mode, the sealing flap 303 opens the suction port 3011, and the suction airflow generated by the wind turbine 1021 draws the dirt into the recycling bin assembly 400 for recycling. Then, the suction airflow is discharged to the outside through the air inlet duct 1025 and the exhaust duct 203, achieving a strong suction capacity. In the discharge mode, the sealing flap 303 closes the suction port 3011, which is equivalent to sealing the airflow path between the recycling bin assembly 400 and the floor brush assembly 300. As a result, the suction airflow generated by the wind turbine 1021 is completely discharged into the recycling bin assembly 400 through the air inlet duct 204 and the air outlet duct 205, providing sufficient air pressure inside the recycling bin assembly 400 to pressurize the sewage inside the recycling bin assembly 400, thereby pressurizing and discharging the sewage from the recycling bin assembly 400 into the cleaning equipment. Due to the presence of air pressure, the sewage flows out of the recycling bin assembly at a high speed and with a large impact force, allowing the sewage to be quickly discharged along the sewer pipe, avoiding the problem of dirt settling and clogging the sewer pipe, and demonstrating strong sewage discharge capacity.

[0159] Furthermore, the duct switching mechanism 200, combined with the wind power mechanism 102 in the cleaning equipment, forms a duct assembly powered by a wind turbine 1021, eliminating the need for additional power sources and saving costs. The duct assembly is installed on the cleaning equipment after assembly, making it easy to install and disassemble. It can move with the cleaning equipment, allowing for flexible selection of the drainage pipe required for wastewater discharge after suction, without location constraints, providing high flexibility and a good user experience. Moreover, when the cleaning equipment is used in conjunction with the base station 500, it can utilize its own generated air pressure to pressurize and discharge wastewater from the base station 500, eliminating the need for a suction motor or other power device within the base station 500, thereby reducing the size and cost of the base station 500.

[0160] In one specific embodiment, in the suction mode, the drain plate 405 is closed, the sealing flap 303 is opened, the recycling bin assembly 400 is connected to the exhaust duct 202, the inlet duct 1025 is connected to the exhaust duct 202, and the outlet duct 1026 is connected to the exhaust duct 203. The fan motor 1021 generates suction force, which generates suction airflow in the connected exhaust duct 202 and inlet duct 1025. Under the action of the suction airflow, dirt enters the recycling bin assembly 400 from the suction port 3011 and is temporarily stored in the recycling bin assembly 400. Excess airflow passes through the outlet duct 1026 and exits from the exhaust duct 203. 03 Discharge; In the sewage discharge mode, the drain plate 405 is opened, the sealing flap 303 is closed, the recycling bin assembly 400 is connected to the air supply duct 205, the air inlet duct 1025 is connected to the air inlet duct 204, and the air outlet duct 1026 is connected to the air supply duct 205. The wind turbine 1021 generates suction force, which generates suction airflow in the connected air inlet duct 204 and air inlet duct 1025. The suction airflow enters the air supply duct 205 through the air outlet duct 1026 and enters the recycling bin assembly 400, thereby pressurizing the dirt in the recycling bin assembly 400. The pressurized dirt is discharged from the drain plate 405.

[0161] In a specific embodiment, such as Figure 15 As shown, the floor brush assembly 300 also includes a second drive member 307. The second drive member 307 is located outside the suction connector 301. The sealing flap 303 is provided with a flap rotating shaft 304. The flap rotating shaft 304 of the sealing flap 303 passes through the side wall of the suction connector 301 and is connected to the second drive member 307. The sealing flap 303 is driven to rotate by the second drive member 307. The second drive member 307 can be a geared motor.

[0162] The second drive component 307 is provided with a second cover 308, which is fastened to the outer wall of the suction connector 301. The second cover 308 covers the second drive component 307 and encloses the exposed end of the flap shaft 304, thus protecting the components and making the overall appearance of the suction connector 301 simpler. The second cover 308 is fastened to the outer wall of the suction connector 301. For example, multiple studs with threaded holes can be provided on the outer wall of the suction connector 301, and multiple mounting holes can be provided around the second cover 308. Screws or bolts are passed through the mounting holes of the second cover 308 and the threaded holes of the suction connector 301 to fasten the second cover 308 to the suction connector 301. By using studs, it can be ensured that the threaded holes do not penetrate the suction connector 301, thus ensuring the internal airtightness of the suction connector 301.

[0163] In a specific embodiment, such as Figure 15 and Figure 16 As shown, the sealing flap 303 includes a rotating part 3031, a sealing part 3033, and a connecting part 3032 for connecting the rotating part 3031 and the sealing part 3033. The flap shaft 304 passes through the rotating part 3031 and is connected to the second drive member 307. The sealing part 3033 matches the suction port 3011. The rotating part 3031 has an axial hole for the rotating shaft 304 to pass through. The rotating part 3031 can be cylindrical. The sealing part 3033 can be block-shaped to match the size and shape of the suction port 3011. The connecting part 3032 connects the rotating part 3031 and the sealing part 3033 and can be flexibly shaped according to the location of the rotating part 3031 and the sealing part 3033, for example, it can be curved. At least one sealing ring can be provided around the periphery of the sealing part 3033 to ensure airtightness when the suction port 3011 is closed.

[0164] To facilitate the installation of the sealing flap 303, this embodiment provides a detachable connector switch valve 302 on the top of the suction connector 301, which facilitates the opening of the connector switch valve 302 to install the sealing flap 303. The sealing flap 303 can be detachably connected to the suction connector 301 by snap-fit.

[0165] In a specific embodiment, such as Figure 15 As shown, a third lever 306 is fixedly provided at one end of the flap rotating shaft 304 of the sealing flap 303, which is connected to the second driving member 307. The third lever 306 is located between the outer wall of the suction connector 301 and the second driving member 307; the second driving member 307 directly drives the third lever 306 to rotate. The other end of the flap rotating shaft 304 is sealed to the outer wall of the suction connector 301 by a sealing cover 305.

[0166] like Figure 15As shown, the floor brush assembly 300 also includes a third micro switch 311 and a fourth micro switch 312. The third micro switch 311 and the fourth micro switch 312 are installed on the outer wall of the suction port 301 and are located on the same side as the third lever 306. When the sealing flap 303 is in the position of opening and closing the suction port 3011, the third lever 306 selectively triggers the third micro switch 311 and the fourth micro switch 312.

[0167] For example, when the third lever 306 is rotated to trigger the third micro switch 311, it indicates that the sealing flap 303 has reached the position of opening the suction port 3011. When the third lever 306 is rotated to trigger the fourth micro switch 312, it indicates that the sealing flap 303 has reached the position of closing the suction port 3011.

[0168] In this embodiment, the structures of the third micro switch 311 and the fourth micro switch 312 are the same as those of the first micro switch 224 and the second micro switch 225, and will not be described again here.

[0169] In a specific embodiment, such as Figure 2 As shown, the floor brush assembly 300 may also include components such as a floor brush, a solution tank 309, and a water pump. The solution tank 309 may be located above the suction port 301. The water pump pumps clean water from the solution tank 309 and sprays it onto the floor brush. As the floor brush rolls, it carries away dirt from the ground and sucks it into the recycling bin assembly 400 through the suction port 3011 for storage.

[0170] In one specific embodiment, the cleaning equipment also has a backflushing dirt mode. In this mode, the sealing flap 303 opens the suction port 3011, and the suction airflow generated by the wind mechanism 102 enters the recycling bin assembly 400 sequentially through the air inlet duct 204 and the air outlet duct 205, and is then blown from the recycling bin assembly 400 towards the suction port 3011. If the suction port 3011 of the floor brush assembly 300 is blocked, the blocked dirt can be pushed out by air pressure, solving the problem that the suction port 3011 of current cleaning equipment is prone to clogging.

[0171] In one specific embodiment, the recycling bin assembly 400 includes a recycling bin 401 and a filter element 402. The upper end of the recycling bin 401 is provided with an air inlet / outlet 406. The filter element 402 is detachably installed at the air inlet / outlet 406. An air outlet is located near the air inlet / outlet 406 of the recycling bin 401, facilitating the airflow from the outlet into the recycling bin 401. By providing the filter element 402, during suction, the suction airflow generated by the fan mechanism 102 is filtered through the filter element 402 before entering the suction duct 202, the exhaust duct 203, and the fan mechanism 102. This reduces the probability of dirt particles entering the ducts and the fan mechanism 102, thereby protecting the duct housing 201 and the fan mechanism 102 from contamination and extending their service life. During sewage discharge, the airflow generated by the wind mechanism 102 will blow back the filter element 402, blowing the dust particles on the filter element 402 into the recycling bin 401 and then discharging them with the sewage. This can clean the filter element 402, thereby reducing the number of times the filter element 402 needs to be manually cleaned.

[0172] Filter element 402 can be made of HEPA filter, which has a filtration efficiency of over 99.97% for particles as small as 0.3 microns. It effectively intercepts fine particles such as dust, pollen, smoke, and bacteria, and is widely used in air purifiers, vacuum cleaners, medical equipment, cleanrooms, and other fields with high air quality requirements. It uses ultra-fine glass fiber or synthetic fiber to create the filter, capturing particles through mechanisms such as physical interception, inertial impaction, and diffusion effects. Of course, other suitable materials can also be chosen for filter element 402.

[0173] In a specific embodiment, such as Figure 2 and Figure 3 As shown, the lower end of the recycling bin 401 is provided with a sewage inlet 403 and a drain outlet 404. The suction connector 301 is also provided with a connection port 3012 opposite to the sewage inlet 3011. The connection port 3012 is connected to the sewage inlet 403 of the recycling bin 401 through a hose 310, and is used to suck the dirt into the recycling bin 401 through the hose 310. The drain outlet 404 is provided with an openable and closable drain plate 405. The drain plate 405 can be rotated by a motor to open or close the drain outlet 404. Furthermore, the side of the drain plate 405 facing the drain outlet 404 is provided with a sealing gasket, which facilitates a tight seal with the drain outlet 404 when the drain outlet 404 is closed, ensuring the airtightness of the recycling bin 401.

[0174] In a specific embodiment, such as Figure 2 As shown, the cleaning equipment also includes a body assembly 100, which includes a body housing 101. A wind power mechanism 102 and an air duct switching mechanism 200 are both installed within the body housing 101, providing installation space for the wind power mechanism 102 and the air duct switching mechanism 200. The wind power mechanism 102 is the power source inherent to the cleaning equipment itself and is located within the body assembly 100.

[0175] Specifically, such as Figures 12 to 14 As shown, the wind power mechanism 102 includes a wind turbine 1021, a motor silencer 1022, a motor bracket 1023, and a bracket cover 1024. The motor silencer 1022 covers the wind turbine 1021, which is mounted on the motor bracket 1023. The bracket cover 1024 covers the motor bracket 1023 and is detachably connected to the duct housing 201. This facilitates the installation and positioning of the wind turbine 1021 and eliminates noise generated during operation. The air inlet 10211, the air outlet 10212, and the exhaust outlet 10212 are normally connected through the motor silencer 1022.

[0176] In one specific embodiment, the lower end of the bracket cover 1024 is connected to the upper end of the air duct housing 201 by a snap and a hook, which makes installation and disassembly convenient. In addition, a sealing ring is provided at the connection between the bracket cover 1024 and the air duct housing 201, which helps to improve the sealing performance and ensure the airtightness of the connection.

[0177] The working process of the cleaning equipment of this utility model is illustrated below with a specific embodiment:

[0178] Taking a floor scrubber as an example, with two switching valves, the first drive component 226 and the second drive component 307 mentioned below can both be geared motors. The positions of the two switching valves are detected by the first micro switch 224 and the second micro switch 225, and the position of the sealing flap 303 is detected by the third micro switch 311 and the fourth micro switch 312. The floor scrubber has a built-in control system.

[0179] When selecting the vacuuming mode, please refer to Figure 17First, the control system receives a suction signal and determines the state of the third micro switch 311 and the fourth micro switch 312. If the third micro switch 311 is triggered, the sealing flap 303 is in the open suction port 3011 position, and there is no need to control the second drive component 307. If the fourth micro switch 312 is triggered, the sealing flap 303 is in the closed suction port 3011 position, and the second drive component 307 is opened, driving the flap shaft 304 to rotate, which in turn drives the third lever 306 to rotate to trigger the third micro switch 311. The control system then receives the signal that the sealing flap 303 has rotated to open the suction port 3011. The position signal controls the first drive unit 226 to drive the first switch valve 206 and the second switch valve 207 to rotate to the second position. When the second position is reached, the first lever 222 triggers the first micro switch 224. At this time, the control system receives the signal that the first switch valve 206 and the second switch valve 207 have reached the second position. At this time, the control system starts the wind turbine 1021, and the suction airflow enters the recycling bin 401 from the suction port 3011, sucking the dirt on the ground into the recycling bin 401. After passing through the HEPA filter, the suction airflow continues to flow upward. The suction airflow that has filtered out the dirt particles enters the exhaust duct 202 and the exhaust duct 203, and is discharged from the outlet on the machine body.

[0180] When selecting the sewage discharge mode, please refer to Figure 18 First, the control system receives the sewage discharge signal and determines the state of the third micro switch 311 and the fourth micro switch 312. If the fourth micro switch 312 is in the triggered state, it indicates that the sealing flap 303 is in the position of closing the sewage inlet 3011. If the third micro switch 311 is in the triggered state, it indicates that the sealing flap 303 is in the position of opening the sewage inlet 3011. At this time, the control system activates the second driving component 307, which drives the flap shaft 304 to rotate, thereby driving the third lever 306 to rotate to trigger the third micro switch 311. The control system then receives a signal that the sealing flap 303 has rotated to the position where the sewage inlet 3011 is closed. The first drive unit 226 drives the first switch valve 206 and the second switch valve 207 to rotate to the first position. When the first position is reached, the second lever 223 triggers the second micro switch 225. At this time, the control system receives a signal that the first switch valve 206 and the second switch valve 207 have reached the first position. At this time, the control wind turbine 1021 is started. The suction airflow enters the recycling bin 401 through the air intake duct 204, the air delivery duct 205 and the HEPA filter. The dust on the HEPA filter is blown into the recycling bin 401 and the sewage in the recycling bin 401 is pressurized. The pressurized sewage is discharged from the drain port 404 at the bottom of the recycling bin 401.

[0181] Furthermore, the positions of the first switching valve 206, the second switching valve 207, and the sealing flap 303 can be determined without microswitches, using the current signals from the first driving component 226 and the second driving component 307. For example, when the first switching valve 206 and the second switching valve 207 are in the second position, the current is within a first preset range; when the first switching valve 206 and the second switching valve 207 are in the first position, the current is within a second preset range. This configuration method results in a simpler structure.

[0182] Furthermore, this utility model embodiment also provides a cleaning system. For example... Figures 1 to 3 As shown, the cleaning system includes a base station 500 and cleaning equipment. The cleaning equipment is detachably mounted on the base station 500. The base station 500 includes a base 501, a docking interface 5011 mounted on the base 501, and a sewage pipe connected to the docking interface 5011 and extending outside the base 501. The drain outlet 404 of the recycling bin assembly 400 is detachably connected to the docking interface 5011. The sewage pipe is used to connect to a sewer pipe, which can be a ground-level sewer pipe or a wall-mounted sewer pipe.

[0183] When the cleaning equipment is used in conjunction with the base station 500, it is removed from the base station 500 for suction when needed. After suction, the equipment is returned to the base station 500, and the drain outlet 404 of the recycling bin assembly 400 is connected to the interface 5011 on the base station 500 to initiate the discharge mode. Wastewater is pressurized in the recycling bin assembly 400 and discharged from the base station 500, eliminating the need for a negative pressure fan or blower motor in the base station 500, thus reducing its size and cost. Since the wastewater pipe of the base 501 is connected to the sewer pipe, wastewater can be pressurized and discharged into both the base 501's wastewater pipe and the sewer pipe. Therefore, even with wall-mounted sewer pipes that have a height difference from the ground, the cleaning system in this embodiment can overcome the previous problem of incomplete drainage due to height differences. It is convenient to use and has a wide range of applications.

[0184] The cleaning device in this embodiment can manually select the sewage discharge mode, or the cleaning device can be placed in the base station 500. After the base station 500 detects the docking signal between the drain port 404 of the recycling bin assembly 400 and the docking interface 5011 of the base 501, the sewage discharge mode will be automatically started, thereby achieving automated sewage discharge.

[0185] Before draining the sewage, you can also select the back-blowing dirty mode to blow out the dirt that is clogging the suction port 3011, making it easier for the next use, and then drain the sewage.

[0186] When backflushing dirt, it is necessary to ensure that the drain plate 405 is closed and that the base 501 and the outer wall of the drain outlet 404 are in a sealed connection to prevent air leakage.

[0187] In another embodiment of the cleaning system (not shown in the figure), the cleaning system includes a base station 500 and cleaning equipment that can be placed on the base station 500;

[0188] The base station 500 includes a base 501, a sewage tank disposed in the base 501, and the aforementioned air duct assembly. The exhaust air duct 202 and the air supply air duct 205 of the air duct assembly are selectively connected to the sewage tank.

[0189] The cleaning equipment includes a recycling bin assembly 400 and a floor brush assembly 300. The recycling bin assembly 400 is connected to the floor brush assembly 300, and the drain outlet 404 of the recycling bin assembly 400 is connected to the inlet of the sewage tank.

[0190] This cleaning system has both suction and discharge modes, which differ from the suction and discharge modes of the aforementioned air duct components located within the cleaning equipment. For example... Figure 19 As shown, the air duct assembly 503 of the cleaning system is located in the base station 500, combined with... Figure 3 and Figure 4 As shown, in the suction mode, the drain outlet 404 of the recycling bin assembly 400 is open, the wastewater tank 502 is connected to the exhaust duct 202, the air inlet duct 1025 is connected to the exhaust duct 202, and the air outlet duct 1026 is connected to the exhaust duct 203. Since the wind turbine 1021 is in the base station 500, the suction airflow generated by the wind turbine 1021 is connected to the wastewater tank 502 through the air inlet duct 1025 and the exhaust duct 202. The suction airflow creates a negative pressure in the wastewater tank 502, thereby sucking the dirt in the recycling bin assembly 400 from the drain outlet 404 into the wastewater tank 502 and storing it there. Excess airflow is discharged from the base station 500 through the air outlet duct 1026 and the exhaust duct 203. In the sewage discharge mode, the drain outlet 404 of the recycling bin assembly 400 is closed, the sewage tank 502 is connected to the air supply duct 205, the air inlet duct 1025 is connected to the air inlet duct 204, and the air outlet duct 1026 is connected to the air supply duct 205. The suction airflow generated by the wind turbine 1021 enters the air inlet duct 204 and the air inlet duct 1025 from the outside of the base station 500, and then flows through the air outlet duct 1026 and the air supply duct 205. The airflow through the air supply duct 205 enters the sewage tank 502. Since the sewage tank 502 is disconnected from the drain outlet 404, the airflow entering the sewage tank 502 can pressurize the dirt in the sewage tank 502, thereby discharging the dirt in the sewage tank 502 from the base station 500.

[0191] In this embodiment, the air duct assembly is installed in the base station 500. During sewage suction, the dirt in the cleaning equipment's recovery tank assembly 400 is sucked into the sewage tank of the base station 500; during sewage discharge, the dirt in the sewage tank is pressurized and discharged outside the base station 500. Because the overall volume occupied by the air duct assembly is small, the increase in the volume of the base station 500 after installing the air duct assembly in the base station 500 is not significant. Compared with the volume of the base station 500 in the prior art, the base station 500 of this utility model is smaller. Moreover, because the air duct is axially arranged, it is short and has no bends, making it less likely to trap dirt and easier to drain the dirt.

[0192] In addition, such as Figure 19 As shown, the sewage tank 502 is connected to the drain outlet of the recycling bin 401 via a docking pipe 504, which facilitates the entry of dirt from the recycling bin 401 into the sewage tank 502. The dirt in the sewage tank 502 is discharged outside the base station 500 through the sewage pipe 505.

[0193] In the cleaning system of this utility model embodiment, the air duct assembly is installed in the cleaning equipment, combined with... Figures 1 to 7 The cleaning equipment has a suction mode and a discharge mode, and the control method of the cleaning system includes:

[0194] In response to the suction mode, the control sealing flap 303 opens the suction port 3011 of the suction connector 301, and controls the first switch valve 206 and the second switch valve 207 to rotate to the first position, opening the exhaust duct 202 and the exhaust duct 203 and closing the intake duct 204 and the air supply duct 205.

[0195] Start the wind turbine 1021, and use the suction airflow generated by the wind turbine 1021 to generate suction at the suction port 3011 to suck up the dirt. The dirt in the suction airflow is recovered by the recycling bin assembly 400 and discharged through the suction duct 202 and the exhaust duct 203.

[0196] In response to the sewage discharge mode, the control sealing flap 303 closes the sewage suction port 3011 of the sewage suction connector 301, and controls the first switch valve 206 and the second switch valve 207 to rotate to the second position, opening the air intake duct 204 and the air delivery duct 205 and closing the exhaust duct 202 and the exhaust duct 203.

[0197] The wind turbine 1021 is started, and the suction airflow generated by the wind turbine 1021 passes through the air intake duct 204 and the air delivery duct 205 in sequence into the recycling bin assembly 400, pressurizing the sewage in the recycling bin assembly 400. The pressurized sewage is then discharged from the base station 500.

[0198] In this embodiment, by controlling the switching of the air duct, the wind turbine 1021 can achieve a strong suction capacity when suctioning sewage, and can also provide sufficient air pressure when discharging sewage to pressurize and discharge the sewage to the cleaning equipment and base station 500. Only one power source (wind turbine 1021) is used for pressurized sewage discharge, which further reduces costs and achieves low-cost and efficient sewage discharge.

[0199] In one specific embodiment, the cleaning equipment also has a backflushing dirt mode;

[0200] In response to the backflush dirty mode, the control sealing flap 303 opens the suction port 3011 of the suction connector 301, and controls the first switch valve 206 and the second switch valve 207 in the air duct switching mechanism 200 to rotate to the second position, opening the air intake duct 204 and the air delivery duct 205 and closing the exhaust duct 202 and the exhaust duct 203.

[0201] The wind turbine 1021 is started, and the suction airflow generated by the wind turbine 1021 flows sequentially through the air inlet duct 204 and the air outlet duct 205 into the recovery bin assembly 400, and is then blown from the recovery bin assembly 400 towards the suction port 3011. This pushes out the blocked dirt from the suction port 3011 through air pressure, solving the problem of easy clogging at the suction port 3011 of current cleaning equipment.

[0202] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A wind path for a cleaning device, the cleaning device comprising a wind power mechanism (102) for driving the flow of the wind path and a collection bin assembly (400) for collecting dirt, the collection bin assembly (400) being located at the bottom of the wind power mechanism (102), characterized in that, The airflow path includes: The air inlet path enters the air power mechanism (102) axially from the bottom of the air power mechanism (102). The air outlet air passage flows out of the wind power mechanism (102) circumferentially from the upper part of the wind power mechanism (102), forming an annular air passage around the wind power mechanism (102), and flows axially towards the bottom of the wind power mechanism (102); The exhaust duct can be switched on and off between the exhaust duct and the outside. The air intake duct can be switched on and off to connect the air intake duct to the outside environment; The air supply path can be switched on and off between the air outlet path and the recovery tank assembly (400) to pressurize the recovery tank assembly (400); The exhaust duct can be switched on and off between the air inlet duct and the recycling bin assembly (400) to draw the recycling bin assembly (400) into a negative pressure state.

2. The air duct according to claim 1, characterized in that, The exhaust air path and the gas supply air path are connected to the outlet air path at different locations.

3. The air duct according to claim 1, characterized in that, When the exhaust air path and the exhaust air path are connected, the inlet air path and the outlet air path are disconnected. The airflow flows from the recycling bin assembly (400) through the exhaust air path, the inlet air path, the outlet air path, and the exhaust air path to the outside, thereby drawing the recycling bin assembly (400) into a negative pressure state. When the inlet air path and the outlet air path are connected, the exhaust air path and the exhaust air path are disconnected. The airflow flows from the outside through the inlet air path, the inlet air path, the outlet air path, and the outlet air path to the recycling bin assembly (400), thereby pressurizing the recycling bin assembly (400).

4. The air duct according to claim 1, characterized in that, The intake air passage and the exhaust air passage are located between the exhaust air passage and the supply air passage.

5. The air duct according to claim 3 or 4, characterized in that, The cleaning equipment also includes a first switch valve (206) and a second switch valve (207). The exhaust air path and the intake air path share the first switch valve (206), and the exhaust air path and the intake air path can be selectively switched on or off. The air supply air path and the air extraction air path share the second switch valve (207), and the air supply air path and the air extraction air path can be selectively switched on or off.

6. The air duct according to claim 1 or 3, characterized in that, It also includes a suction air path and a discharge air path, which can be switched on and off to connect the recycling bin assembly (400) and the outside. When the suction air path, the exhaust air path, and the suction air path are connected, the intake air path, the air supply air path, and the discharge air path are disconnected. The airflow flows from the outside through the suction air path, the recycling bin assembly (400), the suction air path, the intake air path, the exhaust air path, and the exhaust air path to the outside, thereby drawing the recycling bin assembly (400) into a negative pressure state. When the intake air path, the air supply air path, and the discharge air path are connected, the suction air path, the exhaust air path, and the suction air path are disconnected. The airflow flows from the outside through the intake air path, the intake air path, the exhaust air path, the air supply air path, the recycling bin assembly (400), and the discharge air path to the outside, thereby pressurizing the recycling bin assembly (400).

7. A duct assembly for use in cleaning equipment, characterized in that, include: The wind power mechanism (102) includes a wind turbine (1021), an air inlet duct (1025), and an air outlet duct (1026). The wind turbine (1021) includes an air inlet (10211) located at one end and an air outlet (10212) located around the perimeter. The air inlet (10211) is connected to the air inlet duct (1025), and the air outlet (10212) is connected to the air outlet duct (1026). The air outlet duct (1026) extends toward and surrounds the air inlet duct (1025). The air duct switching mechanism (200) is connected to the air force mechanism (102). The air duct switching mechanism (200) includes an air duct housing (201). The air duct housing (201) is provided with an air intake duct (204) and an air extraction duct (202) that are selectively connected to the air intake duct (1025), and an exhaust duct (203) and an air supply duct (205) that are selectively connected to the air outlet duct (1026). The exhaust duct (203) and the air supply duct (205) are connected to the air outlet duct (1026) at different positions.

8. The air duct assembly according to claim 7, characterized in that, It also includes a first switching valve (206) and a second switching valve (207) disposed in the air duct housing (201). The exhaust air duct (203) is adjacent to the intake air duct (204), and the air supply air duct (205) is adjacent to the exhaust air duct (202). The first switching valve (206) is disposed between the intake air duct (204) and the exhaust air duct (203), and the second switching valve (207) is disposed between the exhaust air duct (202) and the air supply air duct (205).

9. The air duct assembly according to claim 8, characterized in that, The first switching valve (206) and the second switching valve (207) each have a first position and a second position, and are both in the first position or the second position; in the first position, the exhaust duct (203) and the suction duct (202) are connected, and the intake duct (204) and the air supply duct (205) are disconnected; in the second position, the exhaust duct (203) and the suction duct (202) are disconnected, and the intake duct (204) and the air supply duct (205) are connected.

10. The air duct assembly according to claim 9, characterized in that, A first partition (212) is provided between the exhaust duct (203) and the extraction duct (202), and a second partition (213) is provided between the gas supply duct (205) and the extraction duct (202). The first switch valve (206) is located in the exhaust duct (203) and is rotatably connected to the first partition (212) through a first rotating shaft (209). The second switch valve (207) is located in the extraction duct (202) and is rotatably connected to the second partition (213) through a second rotating shaft (210).

11. The air duct assembly according to claim 10, characterized in that, The first partition (212) is provided with a first opening (217), and the second partition (213) is provided with a second opening (218). The exhaust duct (203) is provided with a first baffle (214) located above the first opening (217). The first baffle (214) is provided with a third opening (219). The exhaust duct (202) is provided with a second baffle (215) located above the second opening (218). The second baffle (215) is provided with a fourth opening (220). The first switching valve (206) is located below the first baffle (214) and the first rotating shaft (209) is located at the junction of the first baffle (214) and the first partition (212). The second switching valve (207) is located below the second baffle (215) and the second rotating shaft (210) is located at the junction of the second baffle (215) and the second partition (213). In the second position, the first switching valve (206) closes the first opening (217) and the second switching valve (207) closes the second opening (218). In the first position, the first switching valve (206) closes the third opening (219) and the second switching valve (207) closes the fourth opening (220). In the first position, the exhaust duct (203) located below the first baffle (214), the first opening (217), and the exhaust duct (202) located above the second baffle (215) together constitute the intake duct (204).

12. The air duct assembly according to claim 10, characterized in that, The air duct switching mechanism (200) further includes a first driving member (226) and a transmission mechanism. The first driving member (226) and the transmission mechanism are both located outside the air duct housing (201). The first rotating shaft (209) of the first switching valve (206) and the second rotating shaft (210) of the second switching valve (207) both pass through the air duct housing (201) and are connected to the first driving member (226) through the transmission mechanism. The first driving member (226) drives the first switching valve (206) and the second switching valve (207) to rotate synchronously.

13. The air duct assembly according to claim 12, characterized in that, The first drive member (226) and the transmission mechanism are located on the same side of the air duct housing (201), and the transmission mechanism is located inside the first drive member (226). The first drive member (226) is provided with a first cover (230).

14. The air duct assembly according to claim 9, characterized in that, It also includes a third switching valve (208), which is located in the gas supply duct (205) and rotates synchronously in the opposite direction to the second switching valve (207).

15. A cleaning device, characterized in that, include: The recycling bin assembly (400) has a drain plate (405) at the bottom that can be opened and closed; The air duct assembly according to any one of claims 7 to 14, wherein the air duct assembly is connected to the recycling bin assembly (400); wherein the exhaust air duct (202), the air supply air duct (205) are selectively connected to the recycling bin assembly (400), and the exhaust air duct (203) and the intake air duct (204) are selectively connected to the outside. The floor brush assembly (300) is connected to the recycling bin assembly (400) and includes a suction connector (301) and a sealing flap (303) disposed in the suction connector (301). The suction connector (301) is provided with a suction port (3011), and the sealing flap (303) is closably disposed at the suction port (3011). The cleaning equipment has a suction mode and a discharge mode. In the suction mode, the sealing flap (303) opens the suction port (3011), and the suction airflow generated by the wind turbine (1021) passes through the suction port (3011) sequentially through the recycling bin assembly (400) and the exhaust duct (202) and is discharged from the exhaust duct (203). In the discharge mode, the sealing flap (303) closes the suction port (3011), and the suction airflow generated by the wind turbine (1021) enters the recycling bin assembly (400) sequentially through the air inlet duct (204) and the air delivery duct (205), and pressurizes the sewage in the recycling bin assembly (400) and discharges it from the drain plate (405).

16. The cleaning equipment according to claim 15, characterized in that, In the suction mode, the drain plate (405) is closed, the sealing flap (303) is open, the recycling bin assembly (400) is connected to the exhaust duct (202), the air inlet duct (1025) is connected to the exhaust duct (202), and the air outlet duct (1026) is connected to the exhaust duct (203); in the discharge mode, the drain plate (405) is open, the sealing flap (303) is closed, the recycling bin assembly (400) is connected to the air supply duct (205), the air inlet duct (1025) is connected to the air inlet duct (204), and the air outlet duct (1026) is connected to the air supply duct (205).

17. The cleaning equipment according to claim 15, characterized in that, The floor brush assembly (300) also includes a second drive member (307), which is located outside the suction connector (301). The sealing flap (303) is provided with a flap pivot (304), which passes through the side wall of the suction connector (301) and is connected to the second drive member (307). The second drive member (307) is provided with a second cover (308), and the second cover (308) is fastened to the outer wall of the suction connector (301).

18. The cleaning equipment according to claim 17, characterized in that, The sealing flap (303) includes a rotating part (3031) and a sealing part (3033) and a connecting part (3032) for connecting the rotating part (3031) and the sealing part (3033). The flap shaft (304) passes through the rotating part (3031) and is connected to the second drive member (307). The sealing part (3033) matches the suction port (3011).

19. The cleaning equipment according to any one of claims 15 to 18, characterized in that, The cleaning equipment also has a back-blowing dirt mode. In the back-blowing dirt mode, the sealing flap (303) opens the suction port (3011), and the suction airflow generated by the wind motor (1021) enters the recycling bin assembly (400) through the air inlet duct (204) and the air delivery duct (205) in sequence, and is blown from the recycling bin assembly (400) to the suction port (3011).

20. The cleaning equipment according to any one of claims 15 to 18, characterized in that, The recycling bin assembly (400) includes a recycling bin (401) and a filter element (402). The upper end of the recycling bin (401) is provided with an air inlet and outlet (406), and the filter element (402) is detachably installed at the air inlet and outlet (406). The lower end of the recycling bin (401) is provided with a sewage inlet (403) and a drain outlet (404). The drain plate (405) is detachably located at the drain outlet (404). The sewage suction connector (301) is also provided with a connection port (3012) opposite to the sewage suction port (3011). The connection port (3012) is connected to the sewage inlet (403) of the recycling bin (401) through a hose (310).

21. A cleaning system, characterized in that, The system includes a base station (500) and a cleaning device according to any one of claims 15 to 20, the cleaning device being placed on the base station (500), the base station (500) including a base (501) and a docking interface (5011) disposed on the base (501) and a sewage pipe connected to the docking interface (5011) and extending to the outside of the base (501), the drain outlet (404) of the recycling bin assembly (400) being docked with the docking interface (5011).

22. A cleaning system, characterized in that, Includes a base station (500) and cleaning equipment that can be placed on the base station (500); The base station (500) includes a base (501) and a sewage tank disposed in the base (501) and a duct assembly according to any one of claims 7 to 14, wherein the exhaust duct (202) and the air supply duct (205) of the duct assembly are selectively connected to the sewage tank; The cleaning equipment includes a recycling bin assembly (400) and a floor brush assembly (300). The recycling bin assembly (400) is connected to the floor brush assembly (300), and the drain outlet (404) of the recycling bin assembly (400) is connected to the inlet of the wastewater tank (502). The cleaning system has a suction mode and a discharge mode. In the suction mode, the drain outlet (404) of the recycling bin assembly (400) is opened, and the wastewater tank (502) is connected to the exhaust duct (202). The air inlet duct (1025) is connected to the air extraction duct (202), and the air outlet duct (1026) is connected to the exhaust duct (203). In the sewage discharge mode, the drain outlet (404) of the recycling bin assembly (400) is closed, the sewage tank (502) is connected to the air supply duct (205), the air inlet duct (1025) is connected to the air intake duct (204), and the air outlet duct (1026) is connected to the air supply duct (205).

Images