Pollution discharge assembly and cleaning equipment

Abstract

The utility model provides a pollution discharge assembly and cleaning equipment, the pollution discharge assembly comprises a fan, a sewage tank and an air duct switching device, and the fan is provided with an air inlet and an air outlet; the sewage tank is provided with a first ventilation opening, a sewage inlet and a sewage outlet; the air duct switching device sleeves the periphery of the fan and is provided with a second ventilation opening and a third ventilation opening, the second ventilation opening communicates with the first ventilation opening, and the third ventilation opening communicates with the outside; the air duct switching device is configured to rotate around the central axis of the fan relative to the fan, so that the air duct switching device is switched between a first state and a second state; in the first state, the second ventilation opening communicates with the air inlet, and the third ventilation opening communicates with the air outlet; in the second state, the second ventilation opening communicates with the air outlet, and the third ventilation opening communicates with the air inlet. According to the cleaning equipment, the problem that the sewage discharging effect is affected due to the fact that sewage residues exist in the sewage tank in a sewage discharging mode of existing cleaning equipment is solved.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to a sewage discharge component and cleaning equipment. Background Technology

[0002] With the advancement of technology and the development of society, cleaning equipment has been widely used in daily life. People can use cleaning equipment with different functions to complete corresponding cleaning tasks, such as using a floor scrubber to clean the floor.

[0003] Existing cleaning equipment mainly cleans the ground using a mixture of cleaning solution and water. During the cleaning process, a blower draws air from the wastewater tank to draw the wastewater into the tank. Then, the wastewater outlet is manually opened, and the wastewater is discharged by its own weight. This results in wastewater residue in the tank, affecting the discharge efficiency. Utility Model Content

[0004] This application provides a sewage discharge component and a cleaning device, which solves the problem that existing cleaning devices discharge sewage in a way that leaves sewage residue in the sewage tank, affecting the sewage discharge effect.

[0005] This utility model is implemented as follows: a sewage discharge component includes a blower, a sewage tank, and a duct switching device. The blower has an air inlet and an air outlet; the sewage tank has a first vent, a sewage inlet, and a sewage outlet; the duct switching device is sleeved around the outer periphery of the blower and has a second vent and a third vent, the second vent communicating with the first vent, and the third vent communicating with the outside; the duct switching device is configured to rotate relative to the blower around the central axis of the blower, so that the duct switching device switches between a first state and a second state; in the first state, the second vent communicates with the air inlet, and the third vent communicates with the air outlet; in the second state, the second vent communicates with the air outlet, and the third vent communicates with the air inlet.

[0006] In one embodiment, the duct switching device includes:

[0007] A first cylindrical body is fitted around the outer periphery of the fan. The side wall of the first cylindrical body is provided with a first opening, a ventilation hole and a groove. The bottom surface of the first cylindrical body is provided with a second opening and a third opening. The ventilation hole and the groove are arranged in parallel and staggered around the central axis of the fan. The second opening is connected to the ventilation hole, the third opening is connected to the groove, the first opening is connected to the air outlet, and the ventilation hole is connected to the air inlet.

[0008] The second cylinder is sleeved around the outer periphery of the first cylinder, and a first channel is formed between the second cylinder and the first cylinder. The second cylinder includes a fifth opening and a plurality of sixth openings. The fifth opening is used to connect to the outside, and the sixth opening is connected to the first ventilation opening.

[0009] A sealing plate is located between the bottom surface of the first cylinder and the second cylinder. The sealing plate includes a plurality of fourth openings, and the plurality of fourth openings are connected to the plurality of sixth openings in a one-to-one correspondence.

[0010] In the first state, the second opening is connected to the fourth opening, the third opening is blocked, and the first opening is connected to the fifth opening, so that the plurality of sixth openings form the second ventilation opening, and the fifth opening forms the third ventilation opening;

[0011] In the second state, the second opening is blocked, the ventilation hole is connected to the fifth opening, the third opening is connected to the fourth opening, the groove is connected to the first opening through the first channel, so that the fifth opening forms the second ventilation opening, and the plurality of the sixth openings form the third ventilation opening.

[0012] In one embodiment, the second cylinder includes an inner cylinder sleeved on the outer periphery of the first cylinder and an outer shell disposed on the outer periphery of the inner cylinder, wherein the first channel is formed between the inner cylinder and the first cylinder.

[0013] The inner cylinder includes the fifth opening, a plurality of sixth openings, and a first air duct. The plurality of sixth openings are connected to the plurality of fourth openings in a one-to-one correspondence, and the sixth openings are connected to the first ventilation opening.

[0014] A second air duct is formed between the outer shell and the inner cylinder, and the second air duct is connected to the first air duct and the fifth opening.

[0015] In one embodiment, multiple first openings are provided, and the multiple first openings are arranged along the circumference of the first cylinder.

[0016] The ventilation holes are provided in a plurality of manner, and the plurality of ventilation holes are arranged along the circumference of the first cylinder.

[0017] Each air inlet and each air outlet are provided with one, and multiple first openings are connected to the air outlet, and multiple ventilation holes are connected to the air inlet.

[0018] In one embodiment, the duct switching device further includes:

[0019] A driving device is used to drive the first cylinder to rotate, so that the air duct switching device switches between a first state and a second state.

[0020] The driving device includes transmission teeth, gears, and a driving component. The transmission teeth are disposed on the first cylinder, the gears mesh with the transmission teeth, and the driving component is connected to the gears to drive the gears to rotate.

[0021] In one embodiment, the sewage discharge assembly further includes a controller electrically connected to the drive device for controlling the drive device to drive the first cylinder to rotate relative to the fan about the central axis of the fan.

[0022] In one embodiment, the sewage discharge assembly further includes a pressure detection device disposed inside the sewage tank for detecting the pressure value inside the sewage tank;

[0023] The sewage outlet is equipped with a switch device for opening or closing the sewage outlet; the switch device is an electronic switch valve, and both the switch device and the pressure detection device are electrically connected to the controller.

[0024] In one embodiment, the sewage discharge assembly further includes a speed sensor located at the first vent to detect the wind speed at the first vent.

[0025] In one embodiment, a filter is provided between the first vent and the second vent.

[0026] In one embodiment, the sewage discharge assembly further includes a mounting frame having a first mounting position and a second mounting position, the air duct switching device being mounted at the first mounting position, and the sewage tank being detachably mounted at the second mounting position.

[0027] This application also provides a cleaning device, including a cleaning unit, a receiving member, a sewage discharge component as described in any of the above embodiments, a housing, and a handle; the receiving member is connected to the cleaning unit, and the receiving member has a sewage channel communicating with the cleaning unit; the sewage inlet communicates with the sewage channel; the housing is connected to the outer surface of the sewage tank and the air duct switching device; the handle is connected to the sewage discharge component, and the handle has a function mode switch, which is used to switch the cleaning device between a cleaning mode and a sewage discharge mode; in the cleaning mode, the air duct switching device is in the first state, and in the sewage discharge mode, the air duct switching device is in the second state.

[0028] In one embodiment, the housing forms air ducts with the sewage tank and the air duct switching device, and the third vent communicates with the outside through the air ducts.

[0029] The beneficial effects of the sewage discharge components and cleaning equipment provided in this application are as follows: Compared with the prior art, the fan of this application is equipped with a duct switching device. The second vent of the duct switching device is connected to the sewage tank, and the third vent is connected to the outside. The duct switching device can switch between a first state and a second state. In the first state, the second vent is connected to the air inlet of the fan, and the third vent is connected to the air outlet of the fan. At this time, the fan draws out the gas in the sewage tank and discharges it to the outside, so that a negative pressure is formed in the sewage tank, which is conducive to sewage entering the sewage tank from the sewage inlet. In the second state, the second vent is connected to the air outlet of the fan, and the third vent is connected to the air inlet of the fan. At this time, the fan draws air from the outside and blows air into the sewage tank, so that a positive pressure is formed in the sewage tank, which is conducive to the sewage in the sewage tank being discharged more thoroughly from the sewage outlet, reducing sewage residue in the sewage tank and improving the sewage discharge effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application;

[0031] Figure 2 This is an exploded view of the connection between the sewage discharge component and the housing provided in the embodiments of this application;

[0032] Figure 3 This is a front view of the sewage discharge component provided in the embodiments of this application;

[0033] Figure 4 yes Figure 3 AA section diagram;

[0034] Figure 5 This is a schematic diagram of the sewage tank of the sewage discharge component provided in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the sewage tank of the sewage discharge component provided in an embodiment of this application from another angle;

[0036] Figure 7 This is an exploded view of the duct switching device of the sewage discharge component provided in the embodiments of this application;

[0037] Figure 8 This is a schematic diagram of the inner cylinder structure in an embodiment of this application;

[0038] Figure 9 This is a schematic diagram showing the connection between the first cylinder and the drive device of the duct switching device of the sewage discharge component provided in this application embodiment;

[0039] Figure 10 This is a schematic diagram of the internal structure of the sewage tank of the sewage discharge component provided in the embodiment of this application.

[0040] Reference numerals: 1. Fan; 11. Air inlet; 12. Air outlet; 10. Mounting bracket; 101. First mounting position; 102. Second mounting position;

[0041] 2. Sewage tank; 21. First ventilation opening; 22. Sewage inlet; 23. Sewage outlet; 24. Switching device;

[0042] 3. Air duct switching device; 301. Second ventilation opening; 302. Third ventilation opening; 31. First cylinder; 311. First opening; 312. Ventilation hole; 313. Groove; 314. Second opening; 315. Third opening; 32. Sealing plate; 321. Fourth opening; 33. Second cylinder; 3301. Inner cylinder; 3302. Outer shell; 331. First channel; 332. Fifth opening; 333. Sixth opening; 334. First air duct; 335. Second air duct; 336. Extension; 34. Drive device; 341. Transmission gear; 342. Gear; 343. Drive component;

[0043] 4. Controller; 5. Pressure detection device; 6. Speed ​​sensor; 7. Filter element;

[0044] 100. Cleaning device; 200. Receiving part; 300. Sewage discharge assembly; 400. Housing; 401. Air duct; 500. Handle; 600. Function mode switch. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0050] This application provides a sewage discharge component and a cleaning device, which solves the problem that existing cleaning devices discharge sewage in a way that leaves sewage residue in the sewage tank, affecting the sewage discharge effect.

[0051] An optional embodiment of the first aspect of this application provides a sewage discharge component 300, and an optional embodiment of the second aspect of this application provides a cleaning device. Specifically, the cleaning device includes a handheld cleaning device, which can be a handheld floor scrubber, a handheld floor polishing robot, a handheld weeding robot, or other cleaning devices that meet the requirements. For ease of description, this embodiment uses a handheld floor scrubber as an example to describe the technical solution of this application.

[0052] Furthermore, taking a handheld floor scrubber as an example of cleaning equipment, refer to... Figure 1 The cleaning equipment provided in this application includes a cleaning device 100, a receiving component 200, a drain assembly 300, and a handle 500. The cleaning device 100 is used to contact the surface to be cleaned to clean the residual media to be treated on the surface to be cleaned, and the media to be treated is collected by the drain assembly 300, wherein the media to be treated may include sewage and solid impurities.

[0053] Among them, reference Figures 1 to 4The receiving part 200 is connected to the cleaning device 100, and the receiving part 200 is provided with a sewage channel communicating with the cleaning device 100; the sewage discharge assembly 300 has a sewage inlet 22 and a vent, the sewage inlet 22 is connected to the sewage channel, and is used to guide sewage into the inner cavity of the sewage discharge assembly 300; the handle 500 is connected to the sewage discharge assembly 300, and the handle 500 is provided with a function mode switch 600, which is used to switch the cleaning equipment between cleaning mode and sewage discharge mode.

[0054] Optionally, the cleaning equipment also includes a housing 400, with an air duct 401 formed between the housing 400 and the sewage discharge component 300, and the vent of the sewage discharge component 300 connected to the outside through the air duct 401.

[0055] The aforementioned function mode switch 600 may be, but is not limited to, a function mode button. Users can switch the function mode of the cleaning equipment by pressing the function mode button. When the function mode is cleaning mode, the cleaning device 100 of the cleaning equipment will start cleaning the ground, and the sewage discharge component 300 will collect the wastewater generated by the cleaning device 100 cleaning the ground. When the function mode is sewage discharge mode, the cleaning device 100 of the cleaning equipment will stop cleaning the ground, and the sewage discharge component 300 will discharge the collected wastewater in preparation for the next wastewater collection.

[0056] refer to Figure 2 and Figures 5-7 The sewage discharge assembly 300 provided in this embodiment includes a blower 1, a sewage tank 2, and a duct switching device 3. The blower 1 has an air inlet 11 and an air outlet 12; the sewage tank 2 has a first vent 21, a sewage inlet 22, and a sewage outlet 23; the duct switching device 3 is sleeved on the outer periphery of the blower 1 and has a second vent 301 and a third vent 302. The second vent 301 is connected to the first vent 21, and the third vent 302 is used to connect to the outside; the duct switching device 3 is configured to rotate relative to the blower 1 around the central axis of the blower 1, so that the duct switching device 3 switches between a first state and a second state. In the first state, the second vent 301 is connected to the air inlet 11, and the third vent 302 is connected to the air outlet 12; in the second state, the second vent 301 is connected to the air outlet 12, and the third vent 302 is connected to the air inlet 11. In other words, in the first and second states, the second vent 301 remains connected to the first vent 21 of the sewage tank 2 and the blower 1, and the third vent 302 remains connected to the blower 1. The second vent 301 and the third vent 302 switch their connection with the air inlet 11 and the air outlet 12 of the blower 1 in these two states to change the air direction, thereby enabling air to be pumped into the sewage tank 2 or exhausted from the sewage tank 2.

[0057] Specifically, in the first state, the second vent 301 connects to the first vent 21 of the sewage tank 2 and the air inlet 11 of the blower 1, and the third vent 302 connects to the air outlet 12 of the blower 1. At this time, the blower 1 extracts the gas from the sewage tank 2 and discharges it to the outside, creating a negative pressure inside the sewage tank 2, which facilitates the entry of sewage into the sewage tank 2 through the sewage inlet 22. In the second state, the second vent 301 connects to the first vent 21 of the sewage tank 2 and the air outlet 12 of the blower 1, and the third vent 302 connects to the air inlet 11 of the blower 1. At this time, the blower 1 draws air from the outside and blows air into the sewage tank 2, creating a positive pressure inside the sewage tank 2, which facilitates the more thorough discharge of sewage from the sewage outlet 23, reducing sewage residue in the sewage tank 2 and improving the sewage discharge efficiency.

[0058] Specifically, the sewage outlet 23 of the sewage tank 2 is used to discharge the sewage collected in the sewage tank 2. A switch device 24 is installed at the sewage outlet 23. The switch device 24 can be a sewage door that is detachably and sealingly connected to the sewage outlet 23. When the cleaning equipment is in the sewage discharge mode, the user manually opens the sewage door to discharge the sewage in the sewage tank 2. Of course, the switch device 24 can also be a plug that can block the sewage outlet 23. When the cleaning equipment is in the sewage discharge mode, the user manually pulls the plug out of the sewage outlet 23 to discharge the sewage in the sewage tank 2. Alternatively, the switch device 24 can also be a switch valve, such as a ball valve or a slide valve. When the cleaning equipment is in the sewage discharge mode, the user manually opens the switch valve or the switch valve is automatically controlled to open by the controller 4 installed in the cleaning equipment to discharge the sewage in the sewage tank 2.

[0059] When the cleaning equipment provided in this embodiment is in cleaning mode, the air duct switching device 3 can be switched to the first state. At this time, the fan 1 will draw air from the sewage tank 2, and a negative pressure will be formed in the sewage tank 2. The sewage generated by the cleaning device 100 in cleaning the ground will enter the sewage tank 2 from the sewage inlet 22. After the cleaning device 100 has finished cleaning the ground, the function mode of the cleaning equipment is switched to the sewage discharge mode. At this time, the air duct switching device 3 is switched to the second state, and the fan 1 will blow air into the sewage tank 2, forming a positive pressure in the sewage tank 2. Then, the switch device 24 set at the sewage discharge port 23 of the sewage tank 2 is opened, so that the sewage in the sewage tank 2 is quickly and thoroughly discharged from the sewage tank 2, greatly reducing the sewage residue in the sewage tank 2 and improving the sewage discharge effect.

[0060] In some embodiments, the fan 1 includes a fan housing and an impeller. The fan housing has a fan cavity, and the impeller is rotatably disposed within the fan cavity. An air inlet 11 and an air outlet 12 are provided on the side wall of the fan cavity, penetrating the side wall of the fan cavity. The fan 1 is installed vertically, with the plane formed by the impeller's rotation parallel to the horizontal plane. The central axis of the fan 1 refers to its central axis, which is perpendicular to the plane formed by the impeller's rotation.

[0061] In some embodiments, reference Figure 2 For ease of assembly, the sewage discharge assembly 300 of this application embodiment may further include a mounting frame 10, which has a first mounting position 101 and a second mounting position 102. The air duct switching device 3 is installed in the first mounting position 101, and the sewage tank 2 is detachably installed in the second mounting position 102. The mounting frame 10 is provided with a through hole that connects the second ventilation port 301 and the first ventilation port 21.

[0062] In some embodiments, reference Figure 7 The duct switching device 3 includes a first cylinder 31, a sealing plate 32, a second cylinder 33, and a driving device 34. The first cylinder 31 is sleeved around the outer periphery of the fan 1. The second cylinder 33 is sleeved around the outer periphery of the first cylinder 31, and a first channel 331 is formed between the second cylinder 33 and the first cylinder 31. The sealing plate 32 is located between the bottom surface of the first cylinder 31 and the second cylinder 33, and the bottom of the second cylinder 33 covers the sealing plate 32. The driving device 34 drives the first cylinder 31 to rotate relative to the fan 1 around the central axis of the fan 1, so that the duct switching device 3 switches between a first state and a second state. That is, the sealing plate 32 is not fixedly connected to the first cylinder 31. When the first cylinder 31 rotates, the sealing plate 32 remains stationary.

[0063] The first cylindrical body 31 has a first opening 311, a ventilation hole 312, and a groove 313 on its side wall, and a second opening 314 and a third opening 315 on its bottom surface. The ventilation hole 312 and the groove 313 are arranged in parallel and staggered around the central axis of the fan 1. In the first and second states, the second opening 314 is connected to the ventilation hole 312, the third opening 315 is connected to the groove 313, the first opening 311 is connected to the air outlet 12, and the ventilation hole 312 is connected to the air inlet 11. The sealing plate 32 includes multiple fourth openings 321. The second cylindrical body 33 includes a fifth opening 332 and multiple sixth openings 333. The fifth opening 332 is used to connect to the outside, and the multiple sixth openings 333 are connected to the multiple fourth openings 321 in a one-to-one correspondence, and the sixth openings 333 are connected to the first ventilation port 21.

[0064] In the first state, the first cylinder 31 is rotated while the sealing plate 32 and the second cylinder 33 remain stationary, so that the second opening 314 is connected to the fourth opening 321, the third opening 315 is blocked by the portion of the sealing plate 32 where the fourth opening 321 is not opened, and the first opening 311 is connected to the fifth opening 332, so that multiple sixth openings 333 form a second ventilation opening 301, and the fifth opening 332 forms a third ventilation opening 302. In the second state, the first cylinder 31 is rotated while the sealing plate 32 and the second cylinder 33 remain stationary, so that the second opening 314 is blocked by the portion of the sealing plate 32 where the fourth opening 321 is not opened, the ventilation hole 312 is connected to the fifth opening 332, the third opening 315 is connected to the fourth opening 321, and the groove 313 is connected to the first opening 311 through the first channel 331, so that the fifth opening 332 forms a second ventilation opening 301, and multiple sixth openings 333 form a third ventilation opening 302.

[0065] Specifically, when the duct switching device 3 is in the first state, the blower 1 draws gas from the sewage tank 2, creating a negative pressure inside the sewage tank 2. At this time, the flow path and direction of the gas within the sewage discharge assembly 300 are as follows: outside air and sewage enter the sewage tank 2 together through the sewage inlet 22. The sewage is then stored inside the sewage tank 2. The outside air then flows sequentially through the first vent 21, the sixth opening 333, the fourth opening 321, the second opening 314, the ventilation hole 312, and the air inlet 11 of the sewage tank 2, entering the blower 1. That is, outside air enters the blower 1 through the channel connecting the second vent 301 and the air inlet 11 of the duct switching device 3, and then exits from the blower 1's outlet 12, flowing sequentially through the first opening 311 and the fifth opening 332 before exiting to the outside, specifically through the third vent 302 of the duct switching device 3. The gas flow channel within the aforementioned sewage discharge assembly 300 can be referred to as the first ventilation duct.

[0066] When the air duct switching device 3 is in the second state, the blower 1 blows air into the sewage tank 2, creating positive pressure inside the sewage tank 2. At this time, the flow path and direction of the gas within the sewage discharge assembly 300 are as follows: outside air enters the second cylinder 33 through the fifth opening 332, that is, through the second vent 301 of the air duct switching device 3, and flows sequentially through the vent 312 and the air inlet 11, entering the blower 1. Then, it exits from the blower 1's outlet 12, and flows sequentially through the first opening 311, the first channel 331, the groove 313, the third opening 315, the fourth opening 321, the sixth opening 333, and the first vent 21, entering the sewage tank 2, that is, through the third vent 302 of the air duct switching device 3. This creates positive pressure inside the sewage tank 2 while simultaneously continuing to discharge air to the outside through the sewage inlet 22 of the sewage tank 2. The gas flow channel within the aforementioned sewage discharge assembly 300 can be referred to as the second ventilation duct.

[0067] It should be noted that the airflow direction in the first ventilation duct is different from that in the second ventilation duct. This allows the duct switching device 3 to switch between the first and second states when the cleaning equipment is in different functional modes. This ensures that different ventilation ducts are formed within the sewage discharge component 300 when the cleaning equipment is in different functional modes, thus ensuring that the air pressure in the sewage tank 2 is compatible with the functional mode of the cleaning equipment. Therefore, when the cleaning equipment is in cleaning mode and needs to perform floor cleaning, the duct switching device 3 can be switched to the first state; when the cleaning equipment is in sewage discharge mode and needs to perform sewage discharge, the duct switching device 3 can be switched to the second state. This prevents situations where the cleaning equipment is in cleaning mode but the duct switching device 3 is in the second state, which could lead to malfunctions in the cleaning equipment and reduced floor cleaning effectiveness, or vice versa. In other words, a first ventilation duct is formed in cleaning mode to better absorb sewage into sewage tank 2, and a second ventilation duct is formed in sewage discharge mode to better discharge sewage from sewage tank 2. This not only makes the cleaning effect of the cleaning equipment better, but also makes the sewage discharge effect of sewage tank 2 better.

[0068] In some embodiments, reference Figure 7 and Figure 8 The second cylindrical body 33 includes an inner cylindrical body 3301 sleeved around the outer periphery of the first cylindrical body 31 and an outer shell 3302 disposed around the outer periphery of the inner cylindrical body 3301. A first channel 331 is formed between the inner cylindrical body 3301 and the first cylindrical body 31. The inner cylindrical body 3301 includes a fifth opening 332, multiple sixth openings 333, and a first air duct 334. The multiple sixth openings 333 are connected to multiple fourth openings 321 in a one-to-one correspondence, and the sixth openings 333 are connected to the first ventilation port 21. A second air duct 335 is formed between the outer shell 3302 and the inner cylindrical body 3301. In the first state and the second state, the second air duct 335 is connected to the first air duct 334 and the fifth opening 332, respectively. The fifth opening 332 is used to connect to the outside. As the first cylindrical body 31 rotates, the first air duct 334 can switch between the connection state with the first opening 311 and the ventilation port 312, that is, switch between the connection state with the air inlet 11 and the air outlet 12.

[0069] Specifically, when the air duct switching device 3 is in the first state, the first air duct 334 is connected to the first opening 311, and the blower 1 will draw gas from the sewage tank 2 to create a negative pressure inside the sewage tank 2. At this time, the flow path and direction of the gas in the sewage discharge component 300 are as follows: outside air and sewage enter the sewage tank 2 together from the sewage inlet 22 of the sewage tank 2, and then the sewage is stored in the sewage tank 2. Then, outside air flows through the first ventilation port 21, the sixth opening 333, the fourth opening 321, the second opening 314, the ventilation hole 312 and the air inlet 11 of the sewage tank 2 in sequence, enters the blower 1, and then is discharged from the air outlet 12 of the blower 1. It then flows through the first opening 311, the first air duct 334, the second air duct 335 and the fifth opening 332 in sequence and is discharged to the outside.

[0070] When the air duct switching device 3 is in the second state, the first air duct 334 is connected to the ventilation hole 312, and the blower 1 blows air into the sewage tank 2, so that the sewage tank 2 forms a positive pressure. At this time, the flow path and direction of the gas in the sewage discharge component 300 are as follows: outside air enters the second air duct 335 from the fifth opening 332, then flows through the first air duct 334, and flows through the ventilation hole 312 and the air inlet 11 in sequence, enters the blower 1, and then is discharged from the air outlet 12 of the blower 1, and flows through the first opening 311, the first channel 331, the groove 313, the third opening 315, the fourth opening 321 and the first ventilation hole 21 in sequence, and enters the sewage tank 2, so that the sewage tank 2 forms a positive pressure while continuing to be discharged to the outside from the sewage inlet 22 of the sewage tank 2.

[0071] In some embodiments, a plurality of first openings 311 are provided, and the plurality of first openings 311 are arranged circumferentially along the first cylinder 31; a plurality of ventilation holes 312 are provided, and the plurality of ventilation holes 312 are arranged circumferentially along the first cylinder 31; an air inlet 11 and an air outlet 12 are each provided, the plurality of first openings 311 are all connected to the air outlet 12, and the plurality of ventilation holes 312 are all connected to the air inlet 11.

[0072] In this embodiment of the application, for example, three first openings 311 can be provided. The three first openings 311 have the same shape and size and are evenly distributed around the central axis of the fan 1 on the side wall of the first cylinder 31. Three ventilation holes 312 and three grooves 313 can also be provided. The openings of the three ventilation holes 312 and the grooves of the three grooves 313 have the same shape and size and are evenly distributed around the central axis of the fan 1 on the side wall of the first cylinder 31. Each ventilation hole 312 connects to a second opening 314, and each groove 313 connects to a third opening 315. Three fourth openings 321 are provided on the sealing plate 32. In the first state, the three fourth openings 321 are directly opposite the three second openings 314. In the second state, the three fourth openings 321 are directly opposite the three third openings 315.

[0073] Extending along the central axis of the fan 1, each groove 313 corresponds to a first opening 311. When the first cylinder 31 rotates to the first state, the third opening 315 is blocked, and the second opening 314 and the fourth opening 321 are opposite to each other and connected to each other. At this time, the first opening 311 and the groove 313 are both connected to the first air duct 334. When the first cylinder 31 rotates to the second state, the second opening 314 is blocked, and the third opening 315 and the fourth opening 321 are opposite to each other and connected to each other. At this time, the first opening 311 and the groove 313 are both connected to the first channel 331, and the ventilation hole 312 is connected to the first air duct 334.

[0074] Through the structure of the first cylinder 31, sealing plate 32, inner cylinder 3301 and outer shell 3302 set above, the drive device 34 can drive the first cylinder 31 to rotate relative to the fan 1 around the central axis of the fan 1, so as to switch between the first state and the second state, that is, to switch between the first ventilation duct and the second ventilation duct. Thus, the sewage discharge component 300 only needs to be equipped with one fan 1 to simultaneously realize the function of evacuating the sewage tank 2 for better sewage collection, and blowing air into the sewage tank 2 for better and faster and more thorough sewage discharge. This not only saves costs, but also does not increase the overall volume of the sewage discharge component 300, which is conducive to the miniaturization of cleaning equipment.

[0075] In some embodiments, reference Figure 9 The drive device 34 includes a transmission gear 341, a gear 342 and a drive member 343. The transmission gear 341 is located on the first cylinder 31. The gear 342 meshes with the transmission gear 341. The drive member 343 is connected to the gear 342 and is used to drive the gear 342 to rotate.

[0076] The aforementioned drive device 34 has a simple structure and is easier to install, making it easier to accurately control the direction and angle of rotation of the first cylinder 31.

[0077] In some embodiments, reference Figure 2 The sewage discharge assembly 300 also includes a controller 4, which is electrically connected to a drive device 34 and is used to control the drive device 34 to drive the first cylinder 31 to rotate relative to the fan 1 around the central axis of the fan 1.

[0078] It should be noted that by controlling the drive device 34 to drive the first cylinder 31 to rotate relative to the fan 1 around the central axis of the fan 1 through the controller 4, the direction and angle of rotation of the first cylinder 31 can be accurately controlled, thereby enabling the first cylinder 31 to switch accurately between the first state and the second state.

[0079] Furthermore, the controller 4 of the sewage discharge component 300 can be electrically connected to the function mode switch 600 set on the handle 500 of the cleaning equipment. When the function mode switch 600 is triggered by the user and the function mode of the cleaning equipment is changed, the controller 4 receives the signal that the function mode switch 600 has been triggered and controls the drive device 34 to drive the first cylinder 31 to rotate relative to the blower 1 around the central axis of the blower 1. Thus, when the function mode of the cleaning equipment is cleaning mode, the first cylinder 31 is in the first state, the blower 1 draws air from the sewage tank 2, creating a negative pressure in the sewage tank 2, and the sewage enters the sewage tank 2 from the sewage inlet 22 for better collection. When the function mode of the cleaning equipment is sewage discharge mode, the first cylinder 31 is in the second state, the blower 1 blows air into the sewage tank 2, creating a positive pressure in the sewage tank 2, and the sewage is discharged more quickly and thoroughly from the sewage outlet 23 of the sewage tank 2.

[0080] In some embodiments, reference Figure 10 The sewage discharge assembly 300 also includes a pressure detection device 5, which is located inside the sewage tank 2 and is used to detect the gas pressure value inside the sewage tank 2; the sewage outlet 23 is equipped with a switch device 24, which is used to open or close the sewage outlet 23; the switch device 24 is an electronic switch valve, and both the switch device 24 and the pressure detection device 5 are electrically connected to the controller 4.

[0081] It should be noted that the pressure detection device 5, installed inside the sewage tank 2, can detect the pressure value inside the sewage tank 2 in real time. When the cleaning equipment is in cleaning mode, the first cylinder 31 is in the first state, and the blower 1 draws air from the sewage tank 2, creating a negative pressure inside the sewage tank 2. When the cleaning equipment is in sewage discharge mode, the first cylinder 31 is in the second state, and the blower 1 blows air into the sewage tank 2, creating a positive pressure inside the sewage tank 2. Therefore, the state of the first cylinder 31 can be determined based on the pressure value inside the sewage tank 2, thereby determining whether the state of the first cylinder 31 matches the functional mode of the cleaning equipment. This allows for timely detection and resolution of any abnormalities when the state of the first cylinder 31 does not match the functional mode of the cleaning equipment, preventing situations where the state of the first cylinder 31 does not match the functional mode of the cleaning equipment, resulting in unsatisfactory cleaning and sewage discharge effects.

[0082] Furthermore, when the pressure detection device 5 detects a positive pressure value inside the sewage tank 2, it indicates that the first cylinder 31 is in the second state. At this time, the cleaning equipment's functional mode is the sewage discharge mode. The switch device 24 set at the sewage outlet 23 needs to be opened to discharge the sewage collected in the sewage tank 2. An electronic switch valve is used as the switch device 24. The electronic switch valve is electrically connected to the controller 4. In this way, when the controller 4 receives the pressure value inside the sewage tank 2 detected by the pressure detection device 5, if the sewage tank 2 is under positive pressure, the controller 4 will control the electronic switch valve to open, so that the sewage in the sewage tank 2 can be automatically discharged without the user having to manually open the switch device 24, making sewage discharge more convenient and labor-saving.

[0083] Furthermore, when the controller 4 determines that positive pressure has formed inside the sewage tank 2 based on the pressure value detected by the pressure detection device 5, it can continue to monitor the pressure value inside the sewage tank 2 until the pressure value inside the sewage tank 2 reaches the preset value, and then control the electronic switch valve to open. At this time, not only positive pressure is formed inside the sewage tank 2, but the pressure value inside the sewage tank 2 is also relatively high. At the moment the electronic switch valve opens, the pressure difference between the pressure inside the sewage tank 2 and the pressure outside the sewage tank 2 can be increased. Thus, the sewage in the sewage tank 2 can be quickly and thoroughly discharged from the drain outlet 23 using this pressure difference, thereby improving the sewage discharge effect.

[0084] For example, the pressure monitoring device described above can be a pressure gauge or a pressure sensor.

[0085] In some embodiments, reference Figure 10 The sewage discharge assembly 300 also includes a speed sensor 6, which is located at the first vent 21 and is used to detect the wind speed at the first vent 21.

[0086] It should be noted that regardless of whether the air duct switching device 3 of the sewage discharge component 300 in this embodiment is in the first or second state, the airflow path in the sewage discharge component 300 will pass through the same fan 1. Therefore, it is necessary to ensure that the fan 1 is working normally to ensure that the sewage in the cleaning equipment can enter the sewage tank 2 from the sewage inlet 22 and be collected in the sewage tank 2 in the cleaning mode, and that the sewage in the sewage tank 2 can be quickly and thoroughly discharged from the sewage outlet 23 of the sewage tank 2 in the sewage discharge mode. In this embodiment, a speed sensor 6 is installed at the first ventilation opening 21 in the sewage tank 2. The speed sensor 6 can detect the wind speed at the first ventilation opening 21 in real time. When the wind speed at the first ventilation opening 21 is within the set value range, it means that the fan 1 is working normally; otherwise, it means that the fan 1 is abnormal. Users can report and maintain the abnormal fan 1 in a timely manner to avoid affecting the sewage collection effect and sewage discharge effect of the sewage tank 2 due to the abnormality of the fan 1.

[0087] In some embodiments, reference Figure 10 A filter element 7 is provided between the first vent 21 and the second vent 301.

[0088] It should be noted that when the cleaning equipment is in cleaning mode and the air duct switching device 3 is in the first state, the fan 1 draws air from the sewage tank 2. Since the air in the sewage tank 2 enters along with the sewage through the sewage inlet 22, it contains dust and other impurities. When the fan 1 draws air from the sewage tank 2 into its interior, these impurities may adhere to the internal walls of the fan 1 and the surface of the impeller. Prolonged operation of the fan 1 may adversely affect the normal rotation of the impeller. Therefore, a filter 7 is installed between the first vent 21 and the second vent 301. This ensures that when the air from the sewage tank 2 enters the fan 1 through the second vent 301, the filter 7 removes the dust and impurities, preventing contamination of the fan 1 and reducing the adverse effects on the normal rotation of the impeller.

[0089] For example, filter element 7 can be a filter screen.

[0090] In some embodiments, reference Figure 7 The second cylinder 33 extends along the central axis of the fan 1 on one side where the sixth opening 333 is provided to form an extension 336. The filter element 7 can be installed inside the extension 336, which not only does not affect the installation of the second cylinder 33 at the first mounting position 101, but also allows the filter element 7 to filter the air entering the fan 1.

[0091] Of course, for reference Figure 10 The filter element 7 can also be installed inside the first vent 21. This way, not only will the air in the sewage tank 2 be filtered by the filter element 7 when it is discharged from the first vent 21, but the sewage tank 2 will also be easy to remove from the second installation position 102, making it easier to clean the dust and impurities attached to the filter element 7.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sewage discharge assembly, characterized in that, include: The fan (1) has an air inlet (11) and an air outlet (12); The sewage tank (2) has a first ventilation opening (21), a sewage inlet (22) and a sewage outlet (23); The air duct switching device (3) is sleeved on the outer periphery of the fan (1) and has a second ventilation port (301) and a third ventilation port (302). The second ventilation port (301) is connected to the first ventilation port (21), and the third ventilation port (302) is used to connect to the outside. The air duct switching device (3) is configured to rotate relative to the fan (1) about the central axis of the fan (1) so that the air duct switching device (3) switches between a first state and a second state; In the first state, the second vent (301) is connected to the air inlet (11), and the third vent (302) is connected to the air outlet (12); In the second state, the second vent (301) is connected to the air outlet (12), and the third vent (302) is connected to the air inlet (11).

2. The sewage discharge assembly according to claim 1, characterized in that, The air duct switching device (3) includes: A first cylindrical body (31) is fitted around the outer periphery of the fan (1). The side wall of the first cylindrical body (31) is provided with a first opening (311), a ventilation hole (312) and a groove (313). The bottom surface of the first cylindrical body (31) is provided with a second opening (314) and a third opening (315). The ventilation hole (312) and the groove (313) are arranged in parallel and staggered around the central axis of the fan (1). The second opening (314) is connected to the ventilation hole (312). The third opening (315) is connected to the groove (313). The first opening (311) is connected to the air outlet (12). The ventilation hole (312) is connected to the air inlet (11). The second cylinder (33) is sleeved on the outer periphery of the first cylinder (31). A first channel (331) is formed between the second cylinder (33) and the first cylinder (31). The second cylinder (33) includes a fifth opening (332) and a plurality of sixth openings (333). The fifth opening (332) is used to connect to the outside, and the sixth openings (333) are connected to the first ventilation port (21). The sealing plate (32) is located between the bottom surface of the first cylinder (31) and the second cylinder (33). The sealing plate (32) includes a plurality of fourth openings (321), and the plurality of fourth openings (321) are connected to the plurality of sixth openings (333) in a one-to-one correspondence. In the first state, the second opening (314) is connected to the fourth opening (321), the third opening (315) is blocked, and the first opening (311) is connected to the fifth opening (332), so that the plurality of sixth openings (333) form the second vent (301), and the fifth opening (332) forms the third vent (302). In the second state, the second opening (314) is blocked, the ventilation hole (312) is connected to the fifth opening (332), the third opening (315) is connected to the fourth opening (321), the groove (313) is connected to the first opening (311) through the first channel (331), so that the fifth opening (332) forms the second ventilation opening (301), and the plurality of sixth openings (333) form the third ventilation opening (302).

3. The sewage discharge component according to claim 2, characterized in that, The second cylindrical body (33) includes an inner cylindrical body (3301) sleeved on the outer periphery of the first cylindrical body (31) and an outer shell (3302) disposed on the outer periphery of the inner cylindrical body (3301), wherein the first channel (331) is formed between the inner cylindrical body (3301) and the first cylindrical body (31); The inner cylinder (3301) includes the fifth opening (332), a plurality of sixth openings (333) and a first air duct (334). The plurality of sixth openings (333) are connected to the plurality of fourth openings (321) in a one-to-one correspondence, and the sixth opening (333) is connected to the first ventilation port (21). A second air duct (335) is formed between the outer shell (3302) and the inner cylinder (3301), and the second air duct (335) is connected to the first air duct (334) and the fifth opening (332).

4. The sewage discharge assembly according to claim 2 or 3, characterized in that, Multiple first openings (311) are provided, and the multiple first openings (311) are arranged along the circumference of the first cylinder (31); The ventilation holes (312) are provided in a plurality of manner, and the plurality of ventilation holes (312) are arranged along the circumference of the first cylinder (31); Each air inlet (11) and each air outlet (12) is provided with one, and multiple first openings (311) are connected to the air outlet (12), and multiple ventilation holes (312) are connected to the air inlet (11).

5. The sewage discharge assembly according to claim 2 or 3, characterized in that, The air duct switching device (3) also includes: A drive device (34) is used to drive the first cylinder (31) to rotate so that the air duct switching device (3) switches between a first state and a second state. The driving device (34) includes a transmission gear (341), a gear (342), and a driving member (343). The transmission gear (341) is disposed on the first cylinder (31). The gear (342) meshes with the transmission gear (341). The driving member (343) is connected to the gear (342) and is used to drive the gear (342) to rotate.

6. The sewage discharge assembly according to claim 5, characterized in that, Also includes: The controller (4) is electrically connected to the drive device (34) and is used to control the drive device (34) to drive the first cylinder (31) to rotate relative to the fan (1) around the central axis of the fan (1).

7. The sewage discharge assembly according to claim 6, characterized in that, Also includes: A pressure detection device (5) is installed inside the sewage tank (2) to detect the pressure value inside the sewage tank (2); The drain outlet (23) is equipped with a switch device (24) for opening or closing the drain outlet (23); the switch device (24) is an electronic switch valve, and the switch device (24) and the pressure detection device (5) are both electrically connected to the controller (4).

8. The sewage discharge assembly according to any one of claims 1-3, characterized in that, Also includes: A speed sensor (6) is located at the first vent (21) and is used to detect the wind speed at the first vent (21).

9. The sewage discharge assembly according to any one of claims 1-3, characterized in that, A filter element (7) is provided between the first vent (21) and the second vent (301).

10. The sewage discharge assembly according to claim 2 or 3, characterized in that, Also includes: The mounting bracket (10) has a first mounting position (101) and a second mounting position (102). The air duct switching device (3) is installed at the first mounting position (101), and the sewage tank (2) is detachably installed at the second mounting position (102).

11. A cleaning device, characterized in that, include: Cleaning device (100); A receiving part (200) is connected to the cleaning device (100), and the receiving part (200) is provided with a sewage channel communicating with the cleaning device (100); The sewage discharge assembly (300) as described in any one of claims 1-10, wherein the sewage inlet (22) is in communication with the sewage channel; The housing (400) is connected to the outer surface of the sewage tank (2) and the air duct switching device (3); A handle (500) is connected to the sewage discharge assembly (300), and a function mode switch (600) is provided on the handle (500). The function mode switch (600) is used to switch the cleaning equipment between cleaning mode and sewage discharge mode. In the cleaning mode, the air duct switching device (3) is in the first state, and in the sewage discharge mode, the air duct switching device (3) is in the second state.

12. The cleaning equipment according to claim 11, characterized in that, The housing (400) forms an air duct (401) with the sewage tank (2) and the air duct switching device (3) respectively, and the third vent (302) is connected to the outside through the air duct (401).

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