A cleaning appliance

Abstract

The application provides a cleaning device with a cleaning mode and a sewage discharge mode, which comprises a dirt collecting chamber, a fan and a pumping device; the dirt collecting chamber is provided with a dirt inlet and a sewage discharge outlet; the fan is provided with an air outlet channel and an air inlet channel, and the air outlet channel and the air inlet channel are selectively communicated with the dirt collecting chamber; the air outlet channel is used for being communicated with the dirt collecting chamber in the cleaning mode, and the air inlet channel is used for being communicated with the dirt collecting chamber in the sewage discharge mode; the pumping device is communicated with the dirt collecting chamber, and is used for pumping the gas in the dirt collecting chamber in the cleaning mode, and pumping the pressure regulating medium for the dirt collecting chamber in the sewage discharge mode; in the application, the fan and the pumping device can pump the gas in the dirt collecting chamber in the cleaning mode, so as to improve the dirt collecting capacity of the dirt inlet of the dirt collecting chamber, and further improve the cleaning effect of the cleaning device; in the sewage discharge mode, the fan and the pumping device can deliver the pressure regulating medium for the dirt collecting chamber, so as to improve the sewage discharge capacity of the sewage discharge outlet of the dirt collecting chamber.

Description

Technical Field

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

[0002] As a highly efficient floor cleaning device, the floor scrubber cleans the floor by mixing water and detergent and using a rotating brush head to effectively remove stains and dust. It is also equipped with a wastewater tank for collecting and discharging wastewater.

[0003] In related technologies, the sewage tank's drainage capacity is insufficient, which in turn affects the performance of cleaning appliances. Utility Model Content

[0004] The purpose of this application is to provide a cleaning appliance that addresses the problem of insufficient sewage discharge performance of sewage tanks in conventional technologies.

[0005] A first aspect of this application provides a cleaning appliance having a cleaning mode and a wastewater discharge mode, the cleaning appliance comprising:

[0006] The sludge collection chamber has a sludge inlet and a sludge outlet;

[0007] A fan has an air outlet channel and an air inlet channel, one of which is connected to the sludge collection chamber. The air inlet channel is used to connect to the sludge collection chamber in the cleaning mode, and the air outlet channel is used to connect to the sludge collection chamber in the sewage discharge mode.

[0008] A pumping device, connected to the sludge collection chamber, is used to draw gas from the sludge collection chamber in the cleaning mode and to pump a pressure regulating medium into the sludge collection chamber in the sewage discharge mode.

[0009] In some embodiments of this application, the sludge collection chamber includes a pressure regulating pipe disposed on the inner wall of the sludge collection chamber and communicating with the internal space of the sludge collection chamber; the cleaning appliance includes a pressure regulating pipe, one end of which is connected to the pumping device, and the other end extends into the sludge collection chamber and is connected to the pressure regulating pipe.

[0010] In some embodiments of this application, the pressure regulating pipe is provided with a pressure regulating port, and the pressure regulating port is located on the side of the sewage collection chamber where the sewage outlet is located.

[0011] In some embodiments of this application, the drain outlet is located at the end of the sewage collection chamber along the first direction, and the pressure regulating port is oriented parallel to the first direction, or the pressure regulating port is oriented at an acute angle to the first direction.

[0012] In some embodiments of this application, the pressure regulating pipe is arranged around the inner wall of the sewage collection chamber, and there are multiple sewage outlets, which are evenly spaced along the circumferential direction of the pressure regulating pipe.

[0013] In some embodiments of this application, the pressure regulating pipe is disposed between the inlet and the outlet in the height direction of the sewage collection chamber.

[0014] In some embodiments of this application, the cleaning mode includes a first cleaning mode, in which the air inlet channel connecting the fan to the sludge collection chamber is closed, and the pumping device draws gas from the sludge collection chamber.

[0015] In some embodiments of this application, the cleaning mode further includes a second cleaning mode, in which the air inlet channel of the fan connecting the sludge collection chamber is opened, and the pumping device draws gas from the sludge collection chamber.

[0016] In some embodiments of this application, the cleaning appliance further includes a controller and a switch disposed between the fan and the sludge collection chamber. The controller is used to control the closing and opening of the switch. The switch is used to close the connection between the fan and the sludge collection chamber in the first cleaning mode and to open the connection between the fan and the sludge collection chamber in the second cleaning mode.

[0017] In some embodiments of this application, the pumping device is disposed on the side of the blower away from the sludge collection chamber.

[0018] In some embodiments of this application, the pressure regulating medium is at least one of a gaseous medium and a liquid medium.

[0019] In some embodiments of this application, the cleaning appliance further includes a controller and a switching device connected to each other, the controller being used to control the switching device to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber;

[0020] Alternatively, the cleaning appliance may further include a controller for adjusting the rotation direction of the fan or adjusting the blade angle of the fan to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber.

[0021] In some embodiments of this application, the cleaning appliance includes a housing, and the fan, the pumping device and the sludge collection chamber are housed within the housing. The housing is provided with a vent, which is used to communicate with the air inlet channel of the fan in the sewage discharge mode and to communicate with the air outlet channel of the fan in the cleaning mode.

[0022] In some embodiments of this application, a one-way valve is provided on the sewage inlet, and the conduction direction of the one-way valve is the sewage inlet direction.

[0023] The beneficial effects of this application are as follows: The cleaning appliance of this application has a cleaning mode and a sewage discharge mode. The cleaning appliance includes a sewage collection chamber, a fan, and a pumping device. The sewage collection chamber has a sewage inlet and a sewage outlet. The fan has an air outlet channel and an air inlet channel, one of which is connected to the sewage collection chamber. The air outlet channel is used to connect to the sewage collection chamber in the cleaning mode, and the air inlet channel is used to connect to the sewage collection chamber in the sewage discharge mode. The pumping device is connected to the sewage collection chamber and is used to draw gas from the sewage collection chamber in the cleaning mode and to pump a pressure regulating medium to the sewage collection chamber in the sewage discharge mode. In this application, in the cleaning mode, both the fan and the pumping device can draw gas from the sewage collection chamber to improve the sewage collection capacity of the sewage inlet of the sewage collection chamber, thereby improving the cleaning effect of the cleaning appliance. In the sewage discharge mode, both the fan and the pumping device can deliver a pressure regulating medium to the sewage collection chamber to improve the sewage discharge capacity of the sewage outlet of the sewage collection chamber. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a cleaning appliance provided in one embodiment of this application;

[0025] Figure 2 Provided for an embodiment of this application Figure 1 A schematic diagram of the AA-direction cross-sectional structure;

[0026] Figure 3 Provided for an embodiment of this application Figure 2 A magnified schematic diagram of a portion of structure A;

[0027] Figure 4 This is a schematic diagram of the structure of a sludge collection chamber provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the structure of a pressure regulating pipeline provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the sludge collection chamber provided in another embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of a floor scrubber provided in one embodiment of this application.

[0031] Specific element symbol explanations: 100-sludge collection chamber, 110-sludge outlet, 120-sludge inlet, 121-one-way valve, 130-pressure regulating pipe, 131-pressure regulating port, 140-pressure regulating pipe, 200-pumping device, 300-fan, 400-casing, 410-vent, 1000-floor scrubber body, 2000-base, 2100-drainage structure, a-first direction, b-orientation of pressure regulating port. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "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.

[0034] 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.

[0035] It's important to know that with technological advancements and a faster pace of life, cleaning equipment in the home appliance sector has become widely used. Among these, floor scrubbers, as a highly efficient cleaning tool, have gained popularity among users. Floor scrubbers effectively remove stains and dust from floors by mixing water and detergent and using rotating brush heads to clean the surface. They are also equipped with a wastewater tank for collecting and discharging wastewater.

[0036] Floor scrubbers in this technology typically use an electric motor drive system, where the motor's rotation rotates to move the brush head for cleaning. During the cleaning process, wastewater from the wastewater tank is discharged through vents around the motor. While this design achieves wastewater discharge, it is inefficient and easily affected by the motor's operating status. Furthermore, current floor scrubbers often experience problems with wastewater drainage during cleaning, which not only affects the cleaning effect but also increases the cleaning burden on the user.

[0037] Based on this, this application improves the cleaning appliances in the related technology.

[0038] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of the cleaning appliance provided in an embodiment of this application is shown. Figure 2 The embodiments provided in this application are shown. Figure 1 A schematic diagram of the AA-direction cross-section structure; the cleaning appliance of this application embodiment has a cleaning mode and a sewage discharge mode. The cleaning appliance includes a sewage collection chamber 100, a fan 300, and a pumping device 200; the sewage collection chamber 100 has a sewage inlet 120 and a sewage outlet 110; the fan 300 has an air outlet channel and an air inlet channel, one of which is connected to the sewage collection chamber 100. The air outlet channel is used to connect to the sewage collection chamber 100 in the cleaning mode, and the air inlet channel is used to connect to the sewage collection chamber 100 in the sewage discharge mode; the pumping device 200 is connected to the sewage collection chamber 100 and is used to draw gas from the sewage collection chamber 100 in the cleaning mode; and to pump a pressure regulating medium to the sewage collection chamber 100 in the sewage discharge mode.

[0039] It should be explained that the blower 300, as a component providing airflow power, has an air outlet duct for outputting the airflow generated by the blower 300, and an air inlet duct for introducing air to power the blower 300. The waste collection chamber 100 is a space specifically designed to collect wastewater, garbage, and other contaminants generated during the cleaning process. The waste inlet 120 is the entrance for contaminants into the waste collection chamber 100, and is typically connected to the cleaning components of the cleaning appliance; the waste outlet 110 is used to discharge contaminants from the waste collection chamber 100, and is typically connected to a drain pipe. Taking a floor scrubber as an example, the waste collection chamber 100 can be a wastewater tank. The wastewater tank's wastewater inlet 120 is connected to the roller brush cleaning components and is used to collect the dirt cleaned by the roller brush cleaning components. The wastewater tank's wastewater outlet 110 can be connected to a drain pipe on the base 2000.

[0040] Optionally, the cleaning appliance also has a wastewater inlet pipe, the first end of which is connected to the cleaning component, and the second end of which is connected to the wastewater inlet 120 of the cleaning appliance; the wastewater outlet 110 and the first end of the wastewater inlet pipe are both located on the side of the wastewater collection chamber 100 near the cleaning component. Specifically, taking a floor scrubber as an example, the wastewater outlet 110 and the first end of the wastewater inlet pipe are both located at the bottom of the wastewater collection chamber 100.

[0041] The cleaning mode is the working state of the cleaning equipment when performing floor cleaning tasks. In this mode, the cleaning equipment uses a rotating brush head to mix water and detergent and then scrubs the floor. The fan 300 draws in air from the dust collection chamber 100 through the air inlet duct and generates negative pressure in the dust collection chamber 100, so that the sewage, dust and other dirt generated during floor cleaning are sucked into the dust collection chamber 100 through the dust inlet 120, achieving efficient cleaning of the floor.

[0042] The sewage discharge mode is the working stage in which the cleaning equipment discharges the sewage and dirt collected in the sewage collection chamber 100. In this mode, the air outlet duct of the blower 300 sends air into the sewage collection chamber 100, generating positive pressure in the sewage collection chamber 100. The positive pressure forces the sewage and dirt in the sewage collection chamber 100 out, completing the sewage discharge operation.

[0043] It is understood that the pumping device 200 in this embodiment can draw gas from the collection chamber 100 in cleaning mode, which helps to enhance the suction of the inlet 120 of the collection chamber 100, thereby improving the cleaning effect of the cleaning appliance; and can pump a pressure regulating medium into the collection chamber 100 in discharge mode to improve the discharge capacity of the collection chamber 100 by increasing the air pressure in the collection chamber 100. That is to say, in cleaning mode, both the fan 300 and the pumping device 200 can draw gas from the collection chamber 100 to improve the collection capacity of the inlet 120 of the collection chamber 100, thereby improving the cleaning effect of the cleaning appliance; in discharge mode, both the fan 300 and the pumping device 200 can deliver a pressure regulating medium to the collection chamber 100 to improve the discharge capacity of the discharge outlet 110 of the collection chamber 100.

[0044] In some embodiments of this application, please refer to Figure 3 and Figure 4 , Figure 3 This embodiment provides the following: Figure 2 A magnified schematic diagram of a portion of structure A. Figure 4 A schematic diagram of the structure of the sludge collection chamber 100 provided in this embodiment is shown. The sludge collection chamber 100 in this embodiment includes a pressure regulating pipe 130, which is disposed on the inner wall of the sludge collection chamber 100 and communicates with the internal space of the sludge collection chamber 100. The cleaning appliance includes a pressure regulating pipe 140, one end of which is connected to the pumping device 200, and the other end extends into the sludge collection chamber 100 and is connected to the pressure regulating pipe 130.

[0045] Understandably, in cleaning mode, air in the sludge collection chamber 100 enters the pumping device 200 along the pressure regulating pipe 130 and pressure regulating tube 140 to achieve negative pressure regulation of the sludge collection chamber 100. In sewage discharge mode, the pumping device 200 pumps a pressure regulating medium into the sludge collection chamber 100 through the pressure regulating pipe 140 and pressure regulating pipe 130 to achieve pressurization regulation of the sludge collection chamber 100. Furthermore, the pressure regulating pipe 130 is installed on the inner wall of the sludge collection chamber 100, so that the pressure regulating medium pumped by the pumping device 200 can flush the inner wall of the sludge collection chamber 100 through the pressure regulating pipe 130, thereby increasing the cleaning effect of the sludge collection chamber 100.

[0046] In some embodiments, the pressure regulating tube 140 is made of a soft material.

[0047] In some embodiments of this application, please refer to Figure 5 , Figure 5 A schematic diagram of the pressure regulating pipe 130 provided in this embodiment is shown; the pressure regulating pipe 130 in this embodiment is provided with a pressure regulating port 131, and the pressure regulating port 131 is provided on the side facing the sewage collection chamber 100 where the sewage outlet 110 is provided.

[0048] Understandably, in the sewage discharge mode, the pumping device 200 pumps a pressure-regulating medium, such as compressed air, to the pressure-regulating pipe 130. Since the pressure regulating port 131 faces the side of the sewage collection chamber 100 where the sewage outlet 110 is located, when compressed air is ejected from the pressure regulating port 131, it directly impacts the sewage and debris near the sewage outlet 110, propelling them out. For example, when a large amount of viscous debris accumulates in the sewage collection chamber 100, ordinary positive pressure sewage discharge may be insufficient to completely remove it, and some debris may adhere to the area around the sewage outlet 110. At this time, the compressed air ejected from the pressure regulating port 131 forms a directional airflow, which acts as an additional thrust on the debris near the sewage outlet 110, breaking the adhesion of the debris and causing it to be discharged from the sewage outlet 110 with the water flow.

[0049] Please refer to the embodiments described in this application. Figure 3 , Figure 3 Taking the orientation of the pressure regulating port 131 as parallel to the first direction a as an example, the sewage outlet 110 is located at the end of the sewage collection chamber 100 along the first direction a, and the orientation of the pressure regulating port 131 is parallel to the first direction a, or the orientation of the pressure regulating port 131 is at an acute angle to the first direction a.

[0050] Understandably, the pressure regulating port 131 is oriented parallel to the first direction a, allowing the pressure regulating medium ejected through the first direction a to directly flush the drain port 110, which helps improve the sewage discharge performance of the sewage collection chamber 100. If the pressure regulating port 131 is oriented at an acute angle to the first direction a, the pressure regulating medium can be flushed onto the inner wall of the sewage collection chamber 100, thereby improving the cleaning performance of the sewage collection chamber 100.

[0051] Please refer to the embodiments described in this application. Figure 5 In this embodiment, the pressure regulating pipe 130 is arranged around the inner wall of the sewage collection chamber 100, and there are multiple sewage outlets 110, which are evenly spaced along the circumferential direction of the pressure regulating pipe 130.

[0052] Understandably, in cleaning mode, the pressure regulating pipes 130, with their surrounding distribution and multiple pressure regulating ports 131, can evenly distribute negative pressure throughout the collection chamber 100. This ensures that the air pressure at different locations within the collection chamber 100 remains relatively balanced, preventing localized pressure anomalies. This allows all waste entering the collection chamber 100 from the inlet 120 to be collected smoothly, avoiding the situation where uneven air pressure within the collection chamber 100 causes waste to flow out of the inlet 120 and into the collection chamber 100 in a chaotic direction and at severely uneven speeds, resulting in disordered waste distribution, with some areas overfilled and others underfilled. Furthermore, when the air pressure is uneven, airflow vortices may form within the collection chamber 100, causing some waste to remain inside.

[0053] When the cleaning equipment switches to sewage discharge mode, the pumping device 200 pressurizes the pressure regulating medium and delivers it through pipelines to the pressure regulating pipe 130 arranged around the sewage collection chamber 100. Multiple pressure regulating ports 131 on the pressure regulating pipe 130 evenly release pressure to the periphery of the inner wall of the sewage collection chamber 100. Under this uniform pressure, the sewage and solid waste in the sewage collection chamber 100 move in a comprehensive and orderly manner towards the sewage outlet 110. This helps ensure a smooth sewage discharge process; the evenly distributed pressure generates a strong and comprehensive flushing force, peeling the dirt from the inner wall and carrying it out with the sewage.

[0054] Please refer to the embodiments described in this application. Figure 3 And see Figure 6 , Figure 6 A schematic diagram of the sludge collection chamber 100 provided in this embodiment is shown. In this embodiment, a pressure regulating pipe 130 is disposed between the sludge inlet 120 and the sludge outlet 110 in the height direction of the sludge collection chamber. In this way, the pressure regulating pipe 130 can be disposed on the sludge collection channel formed between the sludge inlet 120 and the sludge outlet 110. In the cleaning mode, the pressure regulating pipe 130 and the sludge inlet 120 form the sludge suction part in the sludge collection chamber 100, and in the sludge discharge mode, the pressure regulating pipe 130 and the sludge outlet 110 form the sludge discharge part of the sludge collection chamber 100.

[0055] In some embodiments, the height direction of the sludge collection chamber can be a first direction a.

[0056] In some embodiments of this application, the cleaning mode includes a first cleaning mode, in which the air inlet channel of the fan 300 connected to the sludge collection chamber 100 is closed, and the pumping device 200 draws gas from the sludge collection chamber 100.

[0057] It is understandable that during certain periods of the cleaning mode, the blower 300 draws gas from the sludge collection chamber 100, and at this time, sewage may enter the air inlet channel of the blower 300 along with the gas. In this embodiment, by closing the air inlet channel of the blower 300 and only turning on the pumping device 200 in the first cleaning mode, negative pressure regulation of the sludge collection chamber 100 can be achieved.

[0058] In some embodiments of this application, the cleaning mode also includes a second cleaning mode, in which the fan 300 is turned on to connect the air inlet channel of the dirt collection chamber 100, and the pumping device 200 draws gas from the dirt collection chamber 100.

[0059] Understandably, during certain periods of the cleaning mode (such as when strong suction is required), the pump 200 and the fan 300 can be activated simultaneously to improve the cleaning effect.

[0060] In some embodiments, the cleaning mode also includes a third cleaning mode, in which the air inlet channel of the blower 300 connecting the dirt collection chamber 100 is turned on, but the pumping device 200 is turned off.

[0061] In some embodiments of this application, the cleaning appliance further includes a controller and a switch disposed between the fan 300 and the sludge collection chamber 100. The controller is used to control the closing and opening of the switch, and the switch is used to close the connection between the fan 300 and the sludge collection chamber 100 in a first cleaning mode and to open the connection between the fan 300 and the sludge collection chamber 100 in a second cleaning mode.

[0062] Understandably, the opening and closing of the fan 300 and the sludge collection chamber 100 can be controlled by the controller to facilitate the switching between the first cleaning mode and the second cleaning mode.

[0063] In some embodiments of this application, the pumping device 200 is disposed on the side of the blower 300 away from the sludge collection chamber 100.

[0064] Understandably, given the relatively large size of the blower 300 and the need for communication between it and the sludge collection chamber 100, the blower 300 is preferentially placed on one side of the sludge collection chamber 100. The pumping device 200, being generally smaller, is placed on the side of the blower 300 away from the sludge collection chamber 100, and connected to the sludge collection chamber 100 via a pressure regulating pipe 140 passing through the blower 300. Furthermore, the arrangement of the pumping device 200, blower 300, and sludge collection chamber 100 along the length of the cleaning equipment optimizes space utilization.

[0065] In some embodiments of this application, the pressure regulating medium is at least one of a gaseous medium and a liquid medium.

[0066] It is understood that the pressure regulating medium can be a gas, a liquid, or a gas-liquid mixture. Correspondingly, the pumping device 200 can also be an air pump, a water pump, etc. When the pressure regulating medium is a gaseous medium (e.g., air), in the sewage discharge mode, the pumping device 200 injects air into the sewage collection chamber 100 to drive the sewage and solid waste in the sewage collection chamber 100 towards the sewage outlet 110. When the pressure regulating medium is a liquid medium (e.g., water), in the sewage discharge mode, the pumping device 200 sprays water into the sewage collection chamber 100, which can flush the sewage collection chamber 100 to remove the attached dirt.

[0067] In some embodiments of this application, the cleaning appliance further includes a controller and a switching device. The switching device is connected to the controller, which controls the switching device to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber 100.

[0068] It should be explained that the switching devices typically operate using electromagnetic control or mechanical linkage. Taking electromagnetic control as an example, when the cleaning appliance is in cleaning mode, the controller sends an electrical signal, energizing the electromagnetic coil in the switching device to generate a magnetic field. This magnetic field then drives the internal valve core or gate to connect the air inlet channel to the dirt collection chamber 100, while simultaneously blocking the connection between the air outlet channel and the dirt collection chamber 100. In drain mode, the controller sends the opposite electrical signal, de-energizing the electromagnetic coil. The valve core or gate changes position under the action of a return spring or other device, connecting the air outlet channel to the dirt collection chamber 100, while the air inlet channel is blocked.

[0069] Understandably, switching devices can quickly and accurately switch air ducts, ensuring that cleaning appliances can efficiently switch between cleaning and sewage discharge modes, reducing problems such as decreased cleaning efficiency or poor sewage discharge caused by switching delays.

[0070] In some embodiments, the cleaning appliance further includes a controller for adjusting the rotation direction of the fan 300 or adjusting the blade angle of the fan 300 to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber 100.

[0071] Understandably, when switching from cleaning mode to sewage discharge mode, the air supply direction of the fan 300 can be adjusted by reversing the fan 300 or adjusting the blade angle of the fan 300, thereby enabling either the air inlet channel or the air outlet channel to connect with the sewage collection chamber 100.

[0072] Please refer to the embodiments described in this application. Figure 1The cleaning appliance of this embodiment includes a housing 400, a fan 300, a pumping device 200 and a sludge collection chamber 100 housed in the housing 400. The housing 400 is provided with a vent 410, which is used to communicate with the air inlet channel of the fan 300 in the sewage discharge mode and to communicate with the air outlet channel of the fan 300 in the cleaning mode.

[0073] Understandably, in cleaning mode, the vent 410 is connected to the air outlet of the fan 300. Outside air enters the fan 300 through the vent 410, is pressurized, and then injected into the dirt collection chamber 100 to form positive pressure. This, combined with the pumping device 200, draws gas from the dirt collection chamber 100, increases the suction of the inlet 120, and quickly collects dirt from the ground to prevent secondary pollution. In sewage discharge mode, the vent 410 is connected to the air inlet of the fan 300. The fan 300 discharges gas from the dirt collection chamber 100, and the pumping device 200 delivers a pressure regulating medium to increase the pressure, promoting the discharge of sewage and garbage. The airflow from the fan 300 cleans the sewage discharge pipe.

[0074] Please refer to the embodiments described in this application. Figure 3 In this embodiment, a one-way valve 121 is provided on the sewage inlet 120, and the conduction direction of the one-way valve 121 is the sewage inlet direction of the sewage inlet 120.

[0075] It should be explained that the one-way valve 121 only allows sewage and waste to flow into the collection chamber 100 from the outside, preventing reverse flow. It consists of a valve body, valve disc, etc., and relies on the valve disc to control the opening and closing under pressure difference to ensure one-way flow at the inlet 120.

[0076] In cleaning mode, the blower 300 and pumping device 200 create negative pressure in the sludge collection chamber 100. The one-way valve 121 allows external sewage and waste to flow in smoothly, preventing collected waste from flowing back into the cleaning area due to airflow fluctuations in the blower 300 and pumping device 200, equipment movement, etc. This ensures efficient cleaning and maintains stable negative pressure in the sludge collection chamber 100, improving waste collection efficiency. In discharge mode, the blower 300 and pumping device 200 provide positive pressure to the sludge collection chamber 100. At this time, the one-way valve 121 prevents air from flowing out of the sludge collection chamber 100 through the inlet 120, which helps maintain stable positive pressure within the chamber. This allows the positive pressure generated by the blower 300 to fully push the waste out of the outlet 110.

[0077] In some embodiments, the cleaning appliances may be floor scrubbers and robotic vacuum cleaners.

[0078] In some embodiments of this application, please refer to Figure 7 , Figure 7The diagram shows the structure of the floor scrubber provided in this embodiment. The floor scrubber in this embodiment includes a floor scrubber body 1000 and a base 2000. A drainage structure 2100 is provided on the base 2000. The drainage structure 2100 is connected and adapted to the drain outlet 110 of the dirt collection chamber 100 on the floor scrubber body 100.

[0079] In some embodiments, a charging structure is provided on the base for charging the floor scrubber body.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0081] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0082] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0083] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0084] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A cleaning appliance, characterized in that, The cleaning appliance has a cleaning mode and a sewage discharge mode, and the cleaning appliance includes: The sludge collection chamber has a sludge inlet and a sludge outlet; A fan has an air outlet channel and an air inlet channel, one of which is connected to the sludge collection chamber. The air inlet channel is used to connect to the sludge collection chamber in the cleaning mode, and the air outlet channel is used to connect to the sludge collection chamber in the sewage discharge mode. A pumping device, connected to the sludge collection chamber, is used to draw gas from the sludge collection chamber in the cleaning mode and to pump a pressure regulating medium into the sludge collection chamber in the sewage discharge mode.

2. The cleaning appliance according to claim 1, characterized in that, The sludge collection chamber includes a pressure regulating pipe, which is disposed on the inner wall of the sludge collection chamber and communicates with the internal space of the sludge collection chamber; the cleaning appliance includes a pressure regulating pipe, one end of which is connected to the pumping device, and the other end extends into the sludge collection chamber and is connected to the pressure regulating pipe.

3. The cleaning appliance according to claim 2, characterized in that, The pressure regulating pipe is provided with a pressure regulating port, which is located on the side of the sewage collection chamber where the sewage outlet is located.

4. The cleaning appliance according to claim 3, characterized in that, The drain outlet is located at the end of the sewage collection chamber along the first direction, and the pressure regulating port is oriented parallel to the first direction, or the pressure regulating port is oriented at an acute angle to the first direction.

5. The cleaning appliance according to claim 2, characterized in that, The pressure regulating pipe is arranged around the inner wall of the sewage collection chamber, and there are multiple sewage outlets, which are evenly spaced along the circumferential direction of the pressure regulating pipe.

6. The cleaning appliance according to any one of claims 2 to 5, characterized in that, In the height direction of the sewage collection chamber, the pressure regulating pipe is disposed between the sewage inlet and the sewage outlet.

7. The cleaning appliance according to any one of claims 2 to 5, characterized in that, The cleaning mode includes a first cleaning mode, in which the air inlet channel connecting the fan to the sludge collection chamber is closed, and the pumping device draws gas from the sludge collection chamber.

8. The cleaning appliance according to claim 7, characterized in that, The cleaning mode also includes a second cleaning mode, in which the air inlet channel of the fan connecting the sludge collection chamber is opened, and the pumping device draws gas from the sludge collection chamber.

9. The cleaning appliance according to claim 7, characterized in that, The cleaning appliance also includes a controller and a switch disposed between the fan and the sludge collection chamber. The controller is used to control the opening and closing of the switch. The switch is used to close the connection between the fan and the sludge collection chamber in the first cleaning mode and to open the connection between the fan and the sludge collection chamber in the second cleaning mode.

10. The cleaning appliance according to claim 1, characterized in that, The pumping device is located on the side of the blower away from the sludge collection chamber.

11. The cleaning appliance according to claim 1, characterized in that, The pressure regulating medium is at least one of a gaseous medium and a liquid medium.

12. The cleaning appliance according to claim 1, characterized in that, The cleaning appliance also includes a controller and a switch connected to it. The controller is used to control the switch to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber. Alternatively, the cleaning appliance may further include a controller for adjusting the rotation direction of the fan or adjusting the blade angle of the fan to connect one of the air outlet channel and the air inlet channel to the dirt collection chamber.

13. The cleaning appliance according to claim 1, characterized in that, The cleaning appliance includes a housing, in which the fan, the pumping device, and the sludge collection chamber are housed. The housing is provided with a vent, which is used to communicate with the air inlet of the fan in the sewage discharge mode and with the air outlet of the fan in the cleaning mode.

14. The cleaning appliance according to claim 1, characterized in that, A one-way valve is provided on the sewage inlet, and the one-way valve is open in the direction of sewage inlet.

Images