Cleaning device

Abstract

The utility model relates to the technical field of cleaning equipment, and discloses cleaning equipment which comprises a shell, a clear water tank, a sewage tank, a sewage collecting groove and a communicating unit. The clear water tank is provided with a clear water tank water outlet; the sewage tank is provided with a sewage tank water inlet; the dirt collecting tank is arranged below the shell, and a dirt collecting tank dirt outlet is formed in the dirt collecting tank; the communicating unit has a first communicating state and a second communicating state, in the first communicating state, the communicating unit communicates the sewage outlet of the sewage collecting tank with the water inlet of the sewage tank, and sewage in the sewage collecting tank enters the sewage tank through the communicating unit; in the second communication state, the communication unit communicates the clear water tank water outlet with the sewage tank water inlet, and clear water in the clear water tank enters the sewage tank through the communication unit. According to the cleaning equipment provided by the utility model, the communication unit is arranged, so that the sewage tank can be self-cleaned when the communication unit is in the second communication state, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to cleaning equipment. Background Art

[0002] With the progress of technology and the continuous improvement of living standards, smart home devices have gradually become an important part of people's daily lives. As an intelligent device that can automatically clean the ground, the floor sweeper has been widely welcomed.

[0003] The floor sweeper includes a sewage tank, which is used to store sewage during the process of mopping the floor by the floor sweeper. When the sewage stored in the sewage tank reaches the set water level or set capacity of the sewage tank, the floor sweeper returns to the base station for the sewage discharge operation of the sewage tank. However, bacteria are likely to breed and peculiar smell is likely to be generated after long-term use of the sewage tank. The cleaning of the sewage tank of the traditional floor sweeper often needs to be carried out manually, which not only increases the labor intensity of users, but also affects the user experience. Some floor sweepers add a water pump to introduce the water in the clean water tank into the sewage tank to clean the sewage tank. However, the additional water pump not only increases the cost of the floor sweeper, but also occupies a relatively large space. Summary of the Utility Model

[0004] In view of this, the utility model provides a cleaning equipment to solve the problems of increased cost and relatively large space occupation caused by adding a water pump to self-clean the sewage tank.

[0005] The utility model provides a cleaning equipment, including:

[0006] A housing;

[0007] A clean water tank, provided with a clean water tank water outlet;

[0008] A sewage tank, provided with a sewage tank water inlet;

[0009] A sewage collecting tank, arranged below the housing, the sewage collecting tank is provided with a sewage collecting tank sewage outlet;

[0010] A connecting unit, having a first connecting state and a second connecting state. In the first connecting state, the connecting unit connects the sewage collecting tank sewage outlet and the sewage tank water inlet, and the sewage in the sewage collecting tank enters the sewage tank through the connecting unit; in the second connecting state, the connecting unit connects the clean water tank water outlet and the sewage tank water inlet, and the clean water in the clean water tank enters the sewage tank through the connecting unit.

[0011] Beneficial effects: When the cleaning device is performing cleaning work, the connecting unit is in the first connected state, and the connecting unit connects the sewage outlet of the sewage collection tank and the water inlet of the sewage tank to connect the sewage collection tank and the sewage tank. While the cleaning device is cleaning, the sewage in the sewage collection tank is recycled into the sewage tank in real time through the connecting unit; when the whole cleaning device is performing self-cleaning work on the sewage tank, the connecting unit is in the second connected state, and the connecting unit connects the water outlet of the clean water tank and the water inlet of the sewage tank to connect the clean water tank and the sewage tank. The clean water in the clean water tank enters the sewage tank through the connecting unit to clean the sewage tank, realizing self-cleaning of the sewage tank. This can not only avoid the increased labor intensity of manually cleaning the sewage tank, but also does not require an additional water pump, reducing costs and saving the space occupied by the water pump.

[0012] In an optional embodiment, it further includes:

[0013] An air outlet of the sewage tank, provided on the sewage tank;

[0014] A first air pump, provided with a first air pump inlet;

[0015] The air outlet of the sewage tank is connected to the first air pump inlet through a first pipeline;

[0016] When the connecting unit is in the first connected state, the first air pump evacuates the sewage tank through the first pipeline.

[0017] Beneficial effects: When the cleaning device is performing cleaning work and the connecting unit is in the first connected state, the connecting unit connects the sewage outlet of the sewage collection tank and the water inlet of the sewage tank. The sewage first gathers in the sewage collection tank. The first air pump inlet is connected to the air outlet of the sewage tank through the first pipeline. The first air pump generates negative pressure at the sewage tank through the first air pump inlet, the first pipeline and the air outlet of the sewage tank. The sewage tank pumps the sewage from the sewage collection tank into the sewage tank through the water inlet of the sewage tank, the connecting unit and the sewage outlet of the sewage collection tank.

[0018] In an optional embodiment, the sewage outlet of the sewage collection tank is connected to the connecting unit through a second pipeline, and the water inlet of the sewage tank is connected to the connecting unit through a third pipeline. When the connecting unit is in the first connected state, the sewage in the sewage collection tank is sucked into the sewage tank through the second pipeline, the connecting unit and the third pipeline in sequence.

[0019] Beneficial effects: The setting of the second pipeline can connect the sewage outlet of the sewage collection tank and the connecting unit according to actual needs; the setting of the third pipeline can connect the water inlet of the sewage tank and the connecting unit according to actual needs; through the setting of the second pipeline and the third pipeline, the restrictions on the structure and position of the connecting unit, the sewage collection tank and the sewage tank can be reduced, making the overall structure and position setting of the cleaning device more flexible.

[0020] In an alternative embodiment, the first air pump is provided with a first air pump outlet, and the housing is provided with a first air pump drain outlet. The first air pump outlet is communicated with the first air pump drain outlet through a fourth pipeline.

[0021] Beneficial effects: Through the arrangement of the fourth pipeline, the first air pump outlet and the first air pump drain outlet on the housing can be communicated according to actual needs, reducing the restrictions on the structure and position of the first air pump, and making the overall structure and position setting of the cleaning device more flexible. The first air pump drain outlet is arranged on the housing, which can prevent the water drained by the first air pump from entering the placement space of the internal electrical components of the cleaning device.

[0022] In an alternative embodiment, when the communication unit is in the second communication state, the clean water in the clean water tank enters the communication unit through a fifth pipeline from the clean water tank outlet, and enters the sewage tank through the third pipeline.

[0023] Beneficial effects: The communication unit is communicated with the clean water tank outlet through a fifth pipeline and with the sewage tank inlet through a third pipeline, reducing the restrictions on the structure and position of the communication unit, the sewage tank and the clean water tank, and making the overall structure and position setting of the cleaning device more flexible.

[0024] In an alternative embodiment, it further includes:

[0025] A sewage discharge valve assembly, arranged in the sewage tank;

[0026] The sewage tank is further provided with a sewage tank sewage discharge port;

[0027] The sewage tank sewage discharge port is communicated with the sewage discharge valve assembly through a sixth pipeline.

[0028] Beneficial effects: The arrangement of the sixth pipeline can reduce the restrictions on the structure and position of the sewage discharge valve assembly and the sewage tank sewage discharge port, making the overall structure and position setting of the cleaning device more flexible; when the sewage discharge valve assembly is communicated, the sewage in the sewage tank can be discharged through the sewage tank sewage discharge port, the sixth pipeline and the sewage discharge valve assembly.

[0029] In an alternative embodiment, it further includes:

[0030] A base station, provided with a second air pump;

[0031] The second air pump is communicated with the sewage tank through the sewage discharge valve assembly.

[0032] Beneficial effects: When the cleaning device performs sewage discharge work, the sewage discharge valve assembly is opened under the action of the second air pump, and the second air pump pumps out the sewage in the sewage tank through the sewage discharge valve assembly, the sixth pipeline and the sewage tank sewage discharge port, realizing the sewage discharge of the sewage tank.

[0033] While the cleaning device is discharging sewage or after the cleaning device has completed sewage discharge, the connecting unit is in the second connected state. The connecting unit is connected to the water outlet of the clean water tank through the fifth pipeline and to the sewage inlet of the sewage tank through the third pipeline. Under the action of the second air pump, the sewage discharge valve assembly opens, and the clean water in the clean water tank enters the sewage tank through the water outlet of the clean water tank, the fifth pipeline, the connecting unit, the third pipeline, and the sewage inlet of the sewage tank to clean the dirt in the sewage tank. At the same time, the sewage in the sewage tank is pumped out through the sewage discharge valve assembly, the sixth pipeline, and the sewage outlet of the sewage tank.

[0034] In an alternative embodiment, the connecting unit is a solenoid valve.

[0035] Beneficial effects: The solenoid valve can cooperate with different circuits to achieve the expected control, and both the control accuracy and flexibility can be ensured.

[0036] In an alternative embodiment, the bottom end of the sewage outlet of the sewage collecting tank extends downward to a position close to the bottom of the sewage collecting tank.

[0037] Beneficial effects: The bottom end of the sewage outlet of the sewage collecting tank extends to a position close to the bottom of the sewage collecting tank, which is convenient for sucking the sewage at the bottom of the sewage collecting tank to prevent sewage from remaining in the sewage collecting tank all the time, avoiding the long-term accumulation of sewage to breed bacteria and generate odors.

[0038] In an alternative embodiment, the drainage outlet of the first air pump is connected to the sewage collecting tank.

[0039] Beneficial effects: The outlet of the first air pump is connected to the sewage collecting tank through the fourth pipeline and the drainage outlet of the first air pump. The first air pump can generate positive air pressure in the sewage collecting tank through the drainage outlet of the first air pump. The inlet of the first air pump is connected to the sewage tank through the first pipeline and the air outlet of the sewage tank. The first air pump can generate negative pressure at the sewage tank through the air outlet of the sewage tank. Under the action of the positive air pressure generated by the drainage outlet of the first air pump and the negative pressure generated by the air outlet of the sewage tank, the sewage in the sewage collecting tank can be better pumped from the sewage collecting tank to the sewage tank. And since the sewage collecting tank is arranged below the housing and the drainage outlet of the first air pump is arranged on the housing, the drainage outlet of the first air pump is located above the sewage collecting tank, which can also prevent the sewage in the sewage collecting tank from flowing back into the first air pump through the drainage outlet of the first air pump.

[0040] In an alternative embodiment, it further includes an air extraction pipe arranged in the sewage tank, having an air extraction pipe inlet and an air extraction pipe outlet; the air extraction pipe inlet is arranged at a position close to the top of the sewage tank, and the air extraction pipe outlet is connected to the air outlet of the sewage tank.

[0041] Beneficial effects: The inlet of the suction pipe is arranged at a position close to the top of the sewage tank, which can prevent the sewage in the sewage tank from being sucked into the first air pump through the suction pipe.

[0042] In an optional embodiment, it further includes a sewage inlet pipe arranged in the sewage tank, having a sewage inlet pipe inlet and a sewage inlet pipe outlet; the sewage inlet pipe inlet is communicated with the sewage tank water inlet (c), and the sewage inlet pipe outlet is located above the sewage inlet pipe inlet.

[0043] Beneficial effects: The sewage inlet pipe outlet is located above the sewage inlet pipe inlet, creating a height difference between the sewage inlet pipe outlet and the sewage inlet pipe inlet, which can prevent sewage from flowing back through the sewage inlet pipe.

[0044] In an optional embodiment, it further includes a sewage discharge pipe arranged in the sewage tank, having a sewage discharge pipe inlet and a sewage discharge pipe outlet; the sewage discharge pipe outlet is communicated with the sewage tank sewage outlet, and the sewage discharge pipe inlet is located below the sewage discharge pipe outlet.

[0045] Beneficial effects: The sewage discharge pipe inlet is located below the sewage discharge pipe outlet, which can facilitate the formation of a height difference between the sewage discharge pipe inlet and the sewage discharge pipe outlet to prevent sewage from overflowing through the sewage tank sewage outlet during the cleaning process of the cleaning device, and the sewage discharge pipe inlet is relatively low, which is more convenient for the sewage discharge pipe to drain the sewage tank more thoroughly.

[0046] In an optional embodiment, the distance L from the sewage discharge pipe inlet to the bottom of the sewage tank satisfies 0mm < L ≤ 2mm.

[0047] Beneficial effects: The distance L from the sewage discharge pipe inlet to the bottom of the sewage tank is small and within a certain range, which can facilitate the discharge of sewage in the sewage tank to avoid sewage residue, and can also prevent impurities in the sewage from blocking the sewage discharge pipe inlet.

[0048] In an optional embodiment, in the length direction of the sewage tank, the sewage tank sewage outlet and the sewage tank water inlet are respectively arranged on both sides of the sewage tank.

[0049] Beneficial effects: The sewage tank sewage outlet and the sewage tank water inlet are respectively arranged on both sides of the sewage tank. When the sewage tank is self-cleaned, during the process that clean water enters the sewage tank from the sewage tank water inlet and is discharged from the sewage tank sewage outlet, the entire sewage tank can be flushed, and the flushing is cleaner. Description of the Drawings

[0050] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0051] Figure 1 Partial schematic diagram of a cleaning device according to an embodiment of the present utility model;

[0052] Figure 2 For Figure 1 Partial enlarged schematic diagram of A in

[0053] Figure 3 Partial cross-sectional view of a cleaning device according to an embodiment of the present utility model;

[0054] Figure 4 For Figure 3 Partial enlarged schematic diagram of B in

[0055] Figure 5 For Figure 3 Partial enlarged schematic diagram of C in

[0056] Figure 6 Partial schematic diagram of the sewage tank of the cleaning device according to an embodiment of the present utility model;

[0057] Figure 7 Cross-sectional view of the sewage tank of the cleaning device according to an embodiment of the present utility model;

[0058] Figure 8 Flow schematic diagram of the control method of the cleaning device according to an embodiment of the present utility model.

[0059] Explanation of reference numerals:

[0060] 1. Housing; 101. Drain outlet of the first air pump for draining water; 2. Fresh water tank; 21. Outlet of the fresh water tank; 3. Sewage tank; 31. Inlet of the sewage tank; 32. Air outlet of the sewage tank; 33. Sewage discharge port of the sewage tank; 4. Pollutant collection tank; 41. Pollutant discharge port of the pollutant collection tank; 5. Connecting unit; 6. First air pump; 61. Inlet of the first air pump; 7. First pipeline; 8. Second pipeline; 9. Third pipeline; 10. Fourth pipeline; 11. Fifth pipeline; 12. Sewage discharge valve assembly; 13. Sixth pipeline; 14. Air extraction pipe; 141. Inlet of the air extraction pipe; 15. Pollutant inlet pipe; 151. Outlet of the pollutant inlet pipe; 16. Sewage discharge pipe; 161. Inlet of the sewage discharge pipe; 162. Outlet of the sewage discharge pipe. Specific embodiments

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0062] The following will describe the embodiments of the present utility model in conjunction with Figures 1 to 8 , the embodiments of the present utility model will be described.

[0063] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 7 shown, a cleaning device is provided, which includes a housing 1, a clean water tank 2, a sewage tank 3, a sewage collection tank 4, and a connection unit 5; the clean water tank 2 is provided with a clean water tank water outlet 21; the sewage tank 3 is provided with a sewage tank water inlet 31; the sewage collection tank 4 is arranged below the housing 1, and the sewage collection tank 4 is provided with a sewage collection tank sewage outlet 41; the connection unit 5 has a first connection state and a second connection state. In the first connection state, the connection unit 5 connects the sewage collection tank sewage outlet 41 and the sewage tank water inlet 31, and the sewage in the sewage collection tank 4 enters the sewage tank 3 through the connection unit 5; in the second connection state, the connection unit 5 connects the clean water tank water outlet 21 and the sewage tank water inlet 31, and the clean water in the clean water tank 2 enters the sewage tank 3 through the connection unit 5.

[0064] When the cleaning device is performing a cleaning operation, the connection unit 5 is in the first connection state, and the connection unit 5 connects the sewage collection tank sewage outlet 41 and the sewage tank water inlet 31 to connect the sewage collection tank 4 and the sewage tank 3. While the cleaning device is cleaning, the sewage in the sewage collection tank 4 is continuously recovered into the sewage tank 3 through the connection unit 5; when the whole cleaning device is performing a self-cleaning operation on the sewage tank 3, the connection unit 5 is in the second connection state, and the connection unit 5 connects the clean water tank water outlet 21 and the sewage tank water inlet 31 to connect the clean water tank 2 and the sewage tank 3. The clean water in the clean water tank 2 enters the sewage tank 3 through the connection unit 5 to clean the sewage tank 3, realizing the self-cleaning of the sewage tank 3. This can not only avoid the increased labor intensity of manually cleaning the sewage tank 3 but also does not require an additional water pump, reducing costs and saving the space occupied by the water pump. Since the water pump has a higher cost and occupies more space in the cleaning device compared to the connection unit 5, in this embodiment, there is no need to additionally add a water pump between the clean water tank 2 and the sewage tank 3, which can achieve the purpose of reducing costs and saving the space occupied by the whole cleaning device.

[0065] In one embodiment, it further includes a sewage tank air outlet 32 and a first air pump 6; the sewage tank air outlet 32 is arranged on the sewage tank 3; the first air pump 6 is provided with a first air pump inlet 61; the sewage tank air outlet 32 is communicated with the first air pump inlet 61 through a first pipeline 7; in the first connection state of the connection unit 5, the first air pump 6 evacuates the sewage tank 3 through the first pipeline 7 to create a negative pressure.

[0066] When the cleaning device is performing a cleaning operation, in the first connection state of the connection unit 5, the connection unit 5 connects the sewage outlet 41 of the sewage collection tank and the sewage inlet 31 of the sewage tank. Sewage first collects in the sewage collection tank 4. The first air pump inlet 61 is communicated with the sewage tank air outlet 32 through the first pipeline 7. The first air pump 6 creates a negative pressure at the sewage tank 3 through the first air pump inlet 61, the first pipeline 7 and the sewage tank air outlet 32. The sewage tank 3 pumps the sewage from the sewage collection tank 4 into the sewage tank 3 through the sewage inlet 31 of the sewage tank, the connection unit 5 and the sewage outlet 41 of the sewage collection tank.

[0067] In one embodiment, the sewage outlet 41 of the sewage collection tank is communicated with the connection unit 5 through a second pipeline 8, and the sewage inlet 31 of the sewage tank is communicated with the connection unit 5 through a third pipeline 9. In the first connection state of the connection unit 5, the sewage in the sewage collection tank 4 is successively sucked into the sewage tank 3 through the second pipeline 8, the connection unit 5 and the third pipeline 9.

[0068] The setting of the second pipeline 8 can connect the sewage outlet 41 of the sewage collection tank and the connection unit 5 according to actual needs; the setting of the third pipeline 9 can connect the sewage inlet 31 of the sewage tank and the connection unit 5 according to actual needs; through the setting of the second pipeline 8 and the third pipeline 9, the restrictions on the structure and position of the connection unit 5, the sewage collection tank 4 and the sewage tank 3 can be reduced, making the overall structure and position setting of the cleaning device more flexible.

[0069] In one embodiment, the first air pump 6 is provided with a first air pump outlet 6, and the housing 1 is provided with a first air pump drain outlet 101. The first air pump outlet 6 is communicated with the first air pump drain outlet 101 through a fourth pipeline 10.

[0070] Through the setting of the fourth pipeline 10, the first air pump outlet 6 and the first air pump drain outlet 101 on the housing 1 can be connected according to actual needs, reducing the restrictions on the structure and position of the first air pump 6 and making the overall structure and position setting of the cleaning device more flexible. The first air pump drain outlet 101 is arranged on the housing 1 to prevent the water from being discharged into the placement space of the internal electrical components of the cleaning device after the first air pump 6 takes in water.

[0071] In one embodiment, when the connection unit 5 is in the second connection state, the clean water in the clean water tank 2 enters the connection unit 5 from the clean water tank water outlet 21 through the fifth pipeline 11 and enters the sewage tank 3 from the third pipeline 9.

[0072] The connection unit 5 is connected to the clean water tank water outlet 21 through the fifth pipeline 11 and to the sewage tank water inlet 31 through the third pipeline 9, reducing the restrictions on the structures and positions of the connection unit 5, the sewage tank 3, and the clean water tank 2, and making the overall structure and position setting of the cleaning device more flexible.

[0073] In one embodiment, it further includes a sewage discharge valve assembly 12 and a sixth pipeline 13. The sewage discharge valve assembly 12 is arranged on the sewage tank 3; the sewage tank 3 is further provided with a sewage tank sewage outlet 33; the sewage tank sewage outlet 33 is connected to the sewage discharge valve assembly 12 through the sixth pipeline 13.

[0074] The arrangement of the sixth pipeline 13 can reduce the restrictions on the structures and positions of the sewage discharge valve assembly 12 and the sewage tank sewage outlet 33, making the overall structure and position setting of the cleaning device more flexible; when the sewage discharge valve assembly 12 is connected, the sewage in the sewage tank 3 can be discharged through the sewage tank sewage outlet 33, the sixth pipeline 13, and the sewage discharge valve assembly 12.

[0075] In one embodiment, it further includes a base station; the base station is provided with a second air pump; the second air pump is connected to the sewage tank 3 through the sewage discharge valve assembly 12.

[0076] When the cleaning device performs sewage discharge work, the sewage discharge valve assembly 12 is opened under the action of the second air pump, and the second air pump pumps out the sewage in the sewage tank 3 through the sewage discharge valve assembly 12, the sixth pipeline 13, and the sewage tank sewage outlet 33 to achieve sewage discharge of the sewage tank 3.

[0077] When the cleaning device is performing sewage discharge work, or after the cleaning device has performed sewage discharge work, the connection unit 5 is in the second connection state. The connection unit 5 is connected to the clean water tank water outlet 21 through the fifth pipeline 11 and to the sewage tank water inlet 31 through the third pipeline 9. Under the action of the second air pump, the sewage discharge valve assembly 12 is opened, and the clean water in the clean water tank 2 enters the sewage tank 3 through the clean water tank water outlet 21, the fifth pipeline 11, the connection unit 5, the third pipeline 9, and the sewage tank water inlet 31 to clean the dirt in the sewage tank 3. At the same time, the sewage in the sewage tank 3 is pumped out through the sewage discharge valve assembly 12, the sixth pipeline 13, and the sewage tank sewage outlet 33.

[0078] In this embodiment, the cleaning device includes a cleaning main body and a base station. The cleaning main body includes the above-mentioned housing 1, a clean water tank 2, a sewage tank 3, a dirt collecting tank 4, and a connecting unit 5; the base station is provided with a second air pump and a sewage recovery tank; when the sewage in the sewage tank 3 reaches the preset liquid level or preset capacity of the sewage tank 3, or when the user deems that sewage discharge operation can be carried out, the cleaning main body returns to the base station for sewage discharge operation. After the cleaning main body is docked with the base station, the second air pump of the base station is turned on, and the sewage discharge valve assembly 12 is opened under the action of the second air pump, changing from the normally closed state to the open state. The sewage in the sewage tank 3 is discharged into the sewage recovery tank of the base station under the action of the second air pump of the base station through the sewage tank sewage discharge port 33 and the sewage discharge valve assembly 12.

[0079] In a specific embodiment, the cleaning main body can be a floor sweeper. The cleaning device further includes a mop and a dirt scraping mechanism. The mop and the dirt scraping mechanism are arranged on the housing 1. The clean water tank 2 can supply water to the mop. During the cleaning process of the cleaning device, that is, during the process of the mop mopping the floor, the dirt scraping mechanism scrapes the sewage on the mop, and the sewage gathers in the dirt collecting tank 4 under the action of gravity.

[0080] In a further embodiment, the self-cleaning work of the sewage tank 3 of the whole cleaning device can be carried out after the sewage discharge work of the sewage tank 3 of the cleaning device, or can be carried out during the sewage discharge process of the sewage tank 3 of the cleaning device.

[0081] In a specific embodiment, the first pipeline 7 is a flexible hose, and its shape and connection position can be changed according to actual needs, making the installation position of the first air pump 6 more flexible; and the cost of the flexible hose is relatively low. Preferably, the first pipeline 7 is a silicone hose, which has good elasticity and is not easily damaged.

[0082] In a specific embodiment, the second pipeline 8 is a flexible hose, and its shape and connection position can be changed according to actual needs, making the installation position of the connecting unit 5 more flexible; and the cost of the flexible hose is relatively low. Preferably, the second pipeline 8 is a silicone hose, which has good elasticity and is not easily damaged.

[0083] In a specific embodiment, the third pipeline 9 is a flexible hose, and its shape and connection position can be changed according to actual needs, making the installation position of the connecting unit 5 more flexible; and the cost of the flexible hose is relatively low. Preferably, the third pipeline 9 is a silicone hose, which has good elasticity and is not easily damaged.

[0084] In a specific embodiment, the fourth pipeline 10 is a flexible hose, and its shape and connection position can be changed according to actual needs, making the installation position of the first air pump 6 more flexible; and the cost of the flexible hose is relatively low. Preferably, the fourth pipeline 10 is a silicone hose, which has good elasticity and is not easily damaged.

[0085] In a specific embodiment, the fifth pipeline 11 is a flexible hose, which can change its shape and connection position according to actual needs, making the installation position of the communication unit 5 more flexible; and the cost of the flexible hose is relatively low. Preferably, the fifth pipeline 11 is a silicone hose, which has good elasticity and is not easily damaged.

[0086] In a specific embodiment, the sixth pipeline 13 is a flexible hose, which can change its shape and connection position according to actual needs, making the installation position of the sewage discharge valve assembly 12 more flexible; and the cost of the flexible hose is relatively low. Preferably, the sixth pipeline 13 is a silicone hose, which has good elasticity and is not easily damaged.

[0087] In one embodiment, the communication unit 5 is an electromagnetic valve.

[0088] The electromagnetic valve can cooperate with different circuits to achieve the expected control, and both the control accuracy and flexibility can be ensured.

[0089] Specifically, the cleaning device further includes an overall electric control system. The electromagnetic valve is communicatively connected to the overall electric control system, and can be controlled by the overall electric control system to be in the first communication state, and can also be controlled by the overall electric control system to be in the second communication state. Both the first air pump 6 and the second air pump can be communicatively connected to the overall electric control system. Under the control of the overall electric control system, the first air pump 6 performs the cleaning work, and the second air pump performs the sewage discharge work and self-cleaning work of the sewage tank 3.

[0090] The communication connection includes wired connection through connecting wires such as wires, and also includes network connection through mobile network or WiFi, etc.

[0091] In one embodiment, the bottom end of the sewage outlet 41 of the sewage collection tank extends downward to be close to the bottom of the sewage collection tank 4.

[0092] The bottom end of the sewage outlet 41 of the sewage collection tank extends to be close to the bottom of the sewage collection tank 4, which is convenient for sucking away the sewage at the bottom of the sewage collection tank 4, so as to prevent sewage from remaining in the sewage collection tank 4 all the time, avoiding the growth of bacteria and the generation of peculiar smell due to the long-term accumulation of sewage. The top end of the sewage outlet 41 of the sewage collection tank protrudes outside the housing 1, which is convenient for connecting with the second pipeline 8. Compared with the second pipeline 8 extending into the sewage collection tank 4 through the opening on the housing 1, in this embodiment, through the setting of the sewage outlet 41 of the sewage collection tank, not only can the connection stability between the second pipeline 8 and the position close to the bottom of the sewage collection tank 4 be ensured, avoiding the poor sewage suction effect caused by the shaking of the second pipeline 8 due to impacts, movements, etc., but also the sewage can be prevented from overflowing from the top of the housing 1.

[0093] Specifically, the sewage outlet 41 of the sewage collection tank is integrally formed on the housing 1. The sewage outlet 41 of the sewage collection tank is more stable and is not easily deformed, damaged or shaken.

[0094] In a specific embodiment, the bottom end of the sewage outlet 41 of the sewage collecting tank is arranged at a position close to the bottom of the sewage collecting tank 4, and an inlet sewage interval is formed between the bottom end of the sewage collecting tank 4 and the bottom of the sewage collecting tank 4. Moreover, an avoidance groove is arranged on the outer periphery of the bottom end of the sewage outlet 41 of the sewage collecting tank. Larger particles of dirt can be sucked away through the larger space formed by the inlet sewage interval and the avoidance groove.

[0095] Alternatively, the bottom end of the sewage outlet 41 of the sewage collecting tank abuts against the bottom of the sewage collecting tank 4, and a sewage suction opening is arranged on the outer periphery of the bottom of the sewage collecting tank 4.

[0096] In one embodiment, the first air pump drain outlet 101 is communicated with the sewage collecting tank 4.

[0097] The outlet of the first air pump 6 is communicated with the sewage collecting tank 4 through the fourth pipeline 10 and the first air pump drain outlet 101. The first air pump 6 can generate positive air pressure in the sewage collecting tank 4 through the first air pump drain outlet 101. The inlet of the first air pump 61 is communicated with the sewage tank 3 through the first pipeline 7 and the air outlet 32 of the sewage tank. The first air pump 6 can generate negative pressure at the sewage tank 3 through the air outlet 32 of the sewage tank. Under the action of the positive air pressure generated by the first air pump drain outlet 101 and the negative pressure generated by the air outlet 32 of the sewage tank, the sewage in the sewage collecting tank 4 can be better pumped from the sewage collecting tank 4 to the sewage tank 3. And because the sewage collecting tank 4 is arranged below the housing 1 and the first air pump drain outlet 101 is arranged on the housing 1, the first air pump drain outlet 101 is located above the sewage collecting tank 4, and the sewage in the sewage collecting tank 4 can also be prevented from flowing back into the first air pump 6 through the first air pump drain outlet 101.

[0098] In a specific embodiment, the first air pump drain outlet 101 is integrally formed on the housing 1 and protrudes in a direction away from the sewage collecting tank 4, which is convenient for connecting with the fourth pipeline 10.

[0099] In one embodiment, it further includes an air extraction pipe 14, which is arranged in the sewage tank 3 and is provided with an air extraction pipe inlet 141 and an air extraction pipe 14 outlet; the air extraction pipe inlet 141 is arranged at a position close to the top of the sewage tank 3, and the air extraction pipe 14 outlet is communicated with the air outlet 32 of the sewage tank.

[0100] The air extraction pipe inlet 141 is arranged at a position close to the top of the sewage tank 3, which can prevent the sewage in the sewage tank 3 from being sucked into the first air pump 6 through the air extraction pipe 14.

[0101] Specifically, the air outlet 32 of the sewage tank is arranged on the side wall of the sewage tank 3, which is convenient for communicating with the first pipeline 7. Compared with the first pipeline 7 directly extending into the interior of the sewage tank 3 through the air outlet 32 of the sewage tank, in this embodiment, through the arrangement of the air extraction pipe 14, it can not only ensure the connection stability between the first pipeline 7 and the position near the top of the sewage tank 3, avoid the poor air extraction effect caused by the shaking of the first pipeline 7 due to impacts, movements, etc., but also prevent the sewage in the sewage tank 3 from overflowing through the air outlet 32 on the side wall of the sewage tank 3.

[0102] Specifically, the air extraction pipe 14 is integrally formed on the sewage tank 3, and the air extraction pipe 14 is more stable, not easily deformed, damaged or shaken. And in order to avoid the structure at the top of the sewage tank 3, usually the outlet of the air extraction pipe 14 is coaxially arranged or integrally formed with the air outlet 32 arranged on the side wall of the sewage tank 3. Of course, when there is an avoidance at the top of the sewage tank 3, the air extraction pipe 14 can also be directly integrally formed on the top of the sewage tank 3 and extend towards the upper air outlet 32 of the sewage tank.

[0103] In one embodiment, it further includes a sewage inlet pipe 15, which is arranged in the sewage tank 3 and is provided with a sewage inlet pipe entrance and a sewage inlet pipe outlet 151; the sewage inlet pipe entrance is communicated with the sewage inlet 31(c) of the sewage tank, and the sewage inlet pipe outlet 151 is located above the sewage inlet pipe entrance.

[0104] The sewage inlet pipe outlet 151 is located above the sewage inlet pipe entrance, so that a height difference is generated between the sewage inlet pipe outlet 151 and the sewage inlet pipe entrance, avoiding the backflow of sewage through the sewage inlet pipe 15.

[0105] Compared with the third pipeline 9 directly extending into the interior of the sewage tank 3 through the sewage inlet 31, in this embodiment, the arrangement of the sewage inlet pipe 15 can not only facilitate the formation of a height difference to prevent the backflow of sewage, but also ensure the connection stability between the third pipeline 9 and the sewage inlet 31 of the sewage tank, avoid the shaking of the third pipeline 9 caused by impacts, movements, etc., and also prevent the sewage from overflowing from the sewage inlet 31 of the sewage tank.

[0106] In a specific embodiment, the sewage inlet pipe 15 is integrally formed in the sewage tank 3, and the sewage inlet pipe 15 is more stable, not easily deformed, damaged or shaken. The sewage inlet 31 of the sewage tank protrudes towards the outside of the sewage tank 3, which is convenient for connecting with the third pipeline 9.

[0107] In one embodiment, it further includes a sewage discharge pipe 16, which is arranged in the sewage tank 3 and is provided with a sewage discharge pipe entrance 161 and a sewage discharge pipe outlet 162; the sewage discharge pipe outlet 162 is communicated with the sewage discharge port 33 of the sewage tank, and the sewage discharge pipe entrance 161 is located below the sewage discharge pipe outlet 162.

[0108] The sewage pipe inlet 161 is located below the sewage pipe outlet 162, which is convenient for forming a height difference between the sewage pipe inlet 161 and the sewage pipe outlet 162 to prevent sewage from overflowing through the sewage tank sewage outlet 33 during the cleaning process of the cleaning device. Moreover, the sewage pipe inlet 161 is relatively low, which is more convenient for the sewage pipe 16 to drain the sewage tank 3 more thoroughly.

[0109] Specifically, the sewage pipe 16 is integrally formed on the sewage tank 3, making the sewage pipe 16 more stable and not easily deformed, damaged or shaken.

[0110] Due to the setting of the sewage pipe 16, compared with the sixth pipeline 13 directly extending into the sewage tank 3 through the sewage tank sewage outlet 33, it can not only ensure the connection stability between the sixth pipeline 13 and the sewage tank sewage outlet 33, avoid the shaking of the sixth pipeline 13 caused by impacts, movements, etc., but also prevent the sewage in the sewage tank 3 from overflowing at the sewage tank sewage outlet 33 on the side wall of the sewage tank 3.

[0111] In one embodiment, the distance L from the sewage pipe inlet 161 to the bottom of the sewage tank 3 satisfies 0mm < L ≤ 2mm.

[0112] The distance L from the sewage pipe inlet 161 to the bottom of the sewage tank 3 is small and within a certain range, which is not only convenient for discharging the sewage in the sewage tank 3 to avoid sewage residue, but also can prevent the impurities in the sewage from blocking the sewage pipe inlet 161.

[0113] In a specific embodiment, the distance L from the sewage pipe inlet 161 to the bottom of the sewage tank 3 satisfies 0.5mm.

[0114] In another specific embodiment, the distance L from the sewage pipe inlet 161 to the bottom of the sewage tank 3 satisfies 2mm.

[0115] In one embodiment, in the length direction of the sewage tank 3, the sewage tank sewage outlet 33 and the sewage tank water inlet 31 are respectively arranged on both sides of the sewage tank 3.

[0116] The sewage tank sewage outlet 33 and the sewage tank water inlet 31 are respectively arranged on both sides of the sewage tank 3. When the sewage tank 3 is self-cleaned, during the process that the clean water enters the sewage tank 3 from the sewage tank water inlet 31 and is discharged from the sewage tank sewage outlet 33, the entire sewage tank 3 can be flushed, making the flushing cleaner.

[0117] In one embodiment, the clean water tank 2 is integrally formed on the housing 1, located above the sewage collection tank 4, and the top of the clean water tank 2 is provided with a cover plate.

[0118] The structure is simple, convenient for forming, and the structure is compact, occupying less space. The cover plate can also seal the clean water tank 2 to ensure the sealing performance of the clean water tank 2.

[0119] In a specific implementation manner, the cover plate is connected to the top of the clean water tank 2 by ultrasonic welding to seal the clean water tank 2.

[0120] In one embodiment, the sewage tank 3 is connected to the housing 1.

[0121] The connection of the sewage tank 3 to the housing 1 can simplify the structure of the overall cleaning device, reduce the overall occupied space, and also ensure the stability of the sewage tank 3.

[0122] In one embodiment, the communication unit 5 is connected to the housing 1.

[0123] The connection of the communication unit 5 to the housing 1 can firmly fix the communication unit 5, prevent the communication unit 5 from moving or shaking during movement or collision, and ensure the connection stability between the communication unit 5 and the second pipeline 8, the fifth pipeline 11, and the third pipeline 9 respectively.

[0124] In one embodiment, the sewage discharge valve assembly 12 is disposed on the sewage tank 3 and is located outside the sewage tank 3.

[0125] The arrangement of the sewage discharge valve assembly 12 outside the sewage tank 3 can simplify the structure of the sewage tank 3 and also set the sewage discharge valve assembly 12 at a position convenient for docking with the base station.

[0126] In a specific implementation manner, the sewage discharge valve assembly 12 is disposed on the top of the sewage tank 3. A normally closed mechanical valve structure is provided inside the sewage discharge valve assembly 12, and the normally closed mechanical valve structure is opened under the negative pressure of the second air pump of the base station and is in a normally closed state at other times.

[0127] When the sewage tank 3 needs to be self-cleaned, the cleaning device first returns to the base station and docks with the base station. The second air pump of the base station is turned on, and the sewage discharge valve assembly 12 is opened under the action of the second air pump, changing from the normally closed state to the open state. The connecting unit 5 is in the second connecting state to connect the fifth pipeline 11 and the third pipeline 9. Under the air pressure of the second air pump, the clean water in the clean water tank 2 can enter the sewage tank 3 through the fifth pipeline 11, the connecting unit 5, the third pipeline 9 and the sewage tank water inlet 31 to dilute and flush the dirt deposited at the bottom of the sewage tank 3, and then be discharged from the sewage tank 3 to the sewage recovery tank of the base station through the sewage tank sewage outlet 33, the sixth pipeline 13 and the sewage discharge valve assembly 12, completing the self-cleaning of the sewage tank 3. In this embodiment, through the settings of the fifth pipeline 11, the third pipeline 9 and the connecting unit 5, the clean water tank 2 and the sewage tank 3 are controllably connected and disconnected, so that when the cleaning device docks with the base station, the second air pump of the base station can be used to provide power for the clean water to enter the sewage tank 3 from the clean water tank 2, realizing the self-cleaning of the sewage tank 3. This can not only avoid the increased labor intensity of manually cleaning the sewage tank 3, but also eliminate the need to additionally install a water pump between the clean water tank 2 and the sewage tank 3, reducing costs and saving space for the entire cleaning device. Since the water pump has a higher cost and occupies more space of the cleaning device compared with the connecting unit 5, in this embodiment, there is no need to additionally install a water pump between the clean water tank 2 and the sewage tank 3, achieving the purpose of reducing costs and saving the space occupied by the entire cleaning device.

[0128] According to an embodiment of the present invention, on the other hand, as Figure 8 shown, a control method for a cleaning device is provided, including:

[0129] S1. Obtain the connection state of the connection unit 5;

[0130] S2. If it is the first connection state, the connection unit 5 connects the sewage outlet 41 of the sewage collection tank and the water inlet 31 of the sewage tank, and the sewage in the sewage collection tank 4 enters the sewage tank 3 through the connection unit 5;

[0131] S3. If it is the second connection state, the connection unit 5 connects the water outlet 21 of the clean water tank and the water inlet 31 of the sewage tank, and the clean water in the clean water tank 2 enters the sewage tank 3 through the connection unit 5.

[0132] If the connection state of the connection unit 5 is the first connection state, the connection unit 5 connects the sewage outlet 41 of the sewage collection tank and the water inlet 31 of the sewage tank to connect the sewage collection tank 4 and the sewage tank 3. While the cleaning device is cleaning, the sewage in the sewage collection tank 4 is recycled into the sewage tank 3 in real time through the connection unit 5; if the connection state of the connection unit 5 is the second connection state, the connection unit 5 connects the water outlet 21 of the clean water tank and the water inlet 31 of the sewage tank to connect the clean water tank 2 and the sewage tank 3. The clean water in the clean water tank 2 enters the sewage tank 3 through the connection unit 5 to clean the sewage tank 3, realizing the self-cleaning of the sewage tank 3. This can not only avoid the increased labor intensity caused by manual cleaning of the sewage tank 3, but also does not require additional pumps, reducing costs and saving the space occupied by the pumps.

[0133] Although the 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 fall within the scope defined by the appended claims.

Claims

1. A cleaning device, characterized in that: include: Housing (1); A clean water tank (2) provided with a clean water tank outlet (21); A sewage tank (3) provided with a sewage tank water inlet (31); A sewage collecting tank (4) is arranged below the shell (1), and the sewage collecting tank (4) is provided with a sewage collecting tank sewage outlet (41); The connecting unit (5) has a first connecting state and a second connecting state. In the first connecting state, the connecting unit (5) connects the sewage outlet (41) of the sewage collecting tank with the water inlet (31) of the sewage tank, and the sewage in the sewage collecting tank (4) enters the sewage tank (3) through the connecting unit (5); in the second connecting state, the connecting unit (5) connects the water outlet (21) of the clean water tank with the water inlet (31) of the sewage tank, and the clean water in the clean water tank (2) enters the sewage tank (3) through the connecting unit (5).

2. The cleaning device according to claim 1, characterized in that Also includes: A sewage tank air outlet (32) is provided on the sewage tank (3); A first air pump (6) is provided with a first air pump inlet (61); The sewage tank air outlet (32) is connected to the first air pump inlet (61) through a first pipeline (7); When the communication unit (5) is in the first communication state, the first air pump (6) applies negative pressure to the sewage tank (3) through the first pipeline (7).

3. The cleaning device according to claim 2, characterized in that: The sewage outlet (41) of the sewage collecting tank is connected to the connecting unit (5) via a second pipeline (8), and the water inlet (31) of the sewage tank is connected to the connecting unit (5) via a third pipeline (9). When the connecting unit (5) is in the first connected state, the sewage in the sewage collecting tank (4) is sucked into the sewage tank (3) via the second pipeline (8), the connecting unit (5) and the third pipeline (9) in sequence.

4. The cleaning device according to claim 3, characterized in that: The first air pump (6) is provided with a first air pump (6) outlet, the housing (1) is provided with a first air pump water discharge outlet (101), and the first air pump (6) outlet is connected to the first air pump water discharge outlet (101) via a fourth pipeline (10).

5. The cleaning device according to claim 1, characterized in that: When the connecting unit (5) is in a second connecting state, clean water in the clean water tank (2) enters the connecting unit (5) from the clean water tank outlet (21) through the fifth pipeline (11), and enters the sewage tank (3) from the third pipeline (9).

6. The cleaning device according to claim 5, characterized in that Also includes: A sewage valve assembly (12) is arranged in the sewage tank (3); The sewage tank (3) is also provided with a sewage tank discharge port (33); The sewage tank sewage outlet (33) is connected to the sewage valve assembly (12) via a sixth pipeline (13).

7. The cleaning device according to claim 6, characterized in that Also includes: A base station is provided with a second air pump; The second air pump is connected to the sewage tank (3) via a sewage valve assembly (12).

8. The cleaning device according to any one of claims 1 to 7, characterized in that The communication unit (5) is a solenoid valve; And / or, the bottom end of the sewage collecting tank outlet (41) extends downward to a position close to the bottom of the sewage collecting tank (4).

9. The cleaning device according to claim 4, characterized in that: The first air pump drainage outlet (101) is in communication with the sewage collecting tank (4).

10. The cleaning device according to any one of claims 2 to 4, characterized in that It also comprises an air extraction pipe (14), which is arranged in the sewage tank (3) and is provided with an air extraction pipe inlet (141) and an air extraction pipe (14) outlet; the air extraction pipe inlet (141) is arranged at a position close to the top of the sewage tank (3), and the air extraction pipe (14) outlet is connected to the sewage tank air outlet (32).

11. The cleaning device according to any one of claims 1 to 7, characterized in that It also comprises a sewage inlet pipe (15), which is arranged in the sewage tank (3) and is provided with a sewage inlet pipe (15) inlet and a sewage inlet pipe outlet (151); the sewage inlet pipe (15) inlet is connected to the sewage tank water inlet (31), and the sewage inlet pipe outlet (151) is located above the sewage inlet pipe (15) inlet.

12. The cleaning device according to claim 6 or 7, characterized in that: It also comprises a sewage pipe (16), which is arranged in the sewage tank (3) and is provided with a sewage pipe inlet (161) and a sewage pipe outlet (162); the sewage pipe outlet (162) is connected to the sewage tank sewage outlet (33), and the sewage pipe inlet (161) is located below the sewage pipe outlet (162).

13. The cleaning device according to claim 12, characterized in that The distance L between the sewage pipe inlet (161) and the bottom of the sewage tank (3) satisfies the condition 0mm<L≤2mm.

14. The cleaning device according to claim 6 or 7, characterized in that: In the length direction of the sewage tank (3), the sewage tank water inlet (31) and the sewage tank sewage outlet (33) are respectively arranged on both sides of the sewage tank (3).

Images