Self-cleaning system for a scrubber and self-cleaning method for a scrubber

Abstract

The present application provides a kind of self-cleaning system and self-cleaning method of scrubber, self-cleaning system of scrubber includes: scrubber body, including fresh water tank, sewage tank and control panel, fresh water tank is provided with the first pipe interface for injecting fresh water into fresh water tank, sewage tank is provided with the second pipe interface for discharging sewage;Pipeline cleaning aid, including sewer pipe connected to sewer and the third pipe interface capable of being connected with the second pipe interface, drain electromagnetic valve is arranged between the third pipe interface and sewer pipe;Scrubber body is provided with the first circuit interface connected with control panel, pipeline cleaning aid is provided with the second circuit interface connected with drain electromagnetic valve, the first circuit interface can be docked with the second circuit interface, to make control panel be connected to drain electromagnetic valve.The scrubber cleaning system according to the present application can improve the cleaning effect of the scrubber, reduce the user's use burden and improve the user's experience.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a self-cleaning system and method for a floor scrubber. Background Technology

[0002] A floor scrubber is a cleaning machine suitable for cleaning hard floors while simultaneously drying and removing wastewater from the site. It boasts advantages such as environmental friendliness, energy efficiency, and high performance. As people become increasingly aware of the importance of efficient home cleaning, floor scrubbers are gradually gaining widespread use in daily production and life.

[0003] After a floor scrubber finishes its work, the roller brush often needs to be cleaned due to its ability to absorb dirt, preventing residue and odor. To reduce the burden on users, a self-cleaning solution for floor scrubbers has been proposed, using clean water from the scrubber's clean water tank to clean the roller brush, and then sucking the cleaned wastewater into the wastewater tank. However, traditional automatic cleaning methods are limited by the capacity of the clean water and wastewater tanks, resulting in unsatisfactory cleaning results, and users still need to empty the wastewater themselves, leading to a poor user experience. Summary of the Invention

[0004] This invention provides a self-cleaning system and method for floor scrubbers, which solves the problems of existing automatic cleaning methods being limited by the capacity of the clean water tank and the wastewater tank, resulting in unsatisfactory cleaning effect, and users still needing to empty the wastewater themselves, leading to a poor user experience. The invention improves the cleaning effect of floor scrubbers, reduces the user's burden, and enhances the user experience.

[0005] This invention provides a self-cleaning system for a floor scrubber, comprising: a floor scrubber body including a clean water tank, a wastewater tank, and a control board; the clean water tank having a first pipe interface for injecting clean water into the clean water tank, and the wastewater tank having a second pipe interface for discharging wastewater; a pipe cleaning accessory including a drain pipe connected to a sewer and a third pipe interface capable of connecting to the second pipe interface, with a drain solenoid valve provided between the third pipe interface and the drain pipe; the floor scrubber body having a first circuit interface connected to the control board, and the pipe cleaning accessory having a second circuit interface connected to the drain solenoid valve; the first circuit interface being able to mate with the second circuit interface to connect the control board to the drain solenoid valve.

[0006] According to the self-cleaning system of a floor scrubber provided by the present invention, the first circuit interface is a female connector and the second circuit interface is a male connector that matches the first circuit interface.

[0007] According to the present invention, a self-cleaning system for a floor scrubber includes a pipeline cleaning accessory comprising a pressure sensor installed at a third pipeline interface for detecting liquid pressure within the third pipeline interface; the pressure sensor is connected to a second circuit interface to feed back liquid pressure information within the third pipeline interface to the control board when the first circuit interface and the second circuit interface are mated together.

[0008] According to the self-cleaning system of a floor scrubber provided by the present invention, the first pipeline interface is provided with a first sealing cap; and / or, the second pipeline interface is provided with a second sealing cap.

[0009] According to the self-cleaning system of a floor scrubber provided by the present invention, the first sealing cover and / or the second sealing cover are configured to be manually opened and closed; or, the first sealing cover and / or the second sealing cover are configured to be elastically opened and closed, so as to push open the first sealing cover and / or the second sealing cover when the first pipeline interface and / or the second pipeline interface are connected to an external pipeline; or, the first sealing cover and / or the second sealing cover are driven to open and close by an electric actuator, the electric actuator being connected to the control board to drive the first sealing cover and / or the second sealing cover to open and close according to the instructions of the control board.

[0010] According to the present invention, a self-cleaning system for a floor scrubber includes a charging base station, which is used to house the floor scrubber body and supply power to the floor scrubber body; the pipeline cleaning accessory is set independently of the charging base station, or the pipeline cleaning accessory is integrated with the charging base station.

[0011] This invention also provides a self-cleaning method for a floor scrubber, which is applied to any of the self-cleaning systems described above. The floor scrubber body includes a roller brush and a roller brush motor for driving the roller brush to rotate. The roller brush motor is connected to the control board. A spray nozzle and a water suction port are arranged adjacent to the roller brush. The spray nozzle is connected to a clean water tank via a pipeline, and a spray control valve connected to the control board is provided between the spray nozzle and the clean water tank. The water suction port is connected to a wastewater tank via a pipeline, and the wastewater tank is provided with a connection to the control board. An air pump is included in the self-cleaning method, which involves placing the floor scrubber body into the charging base station and connecting it with the pipeline cleaning accessories; activating the self-cleaning mode of the control board; the control board issuing a control command to close the drain solenoid valve, open the spray control valve, and start the roller brush motor and the air pump to clean the roller brush; when wastewater needs to be discharged, the control board issuing a control command to open the drain solenoid valve; after the self-cleaning mode ends, the control board issuing a control command to close the spray control valve, the drain solenoid valve, the roller brush motor, and the air pump.

[0012] According to a self-cleaning method for a floor scrubber provided by the present invention, the self-cleaning mode includes an immersion cleaning stage; in the self-cleaning mode, the control board obtains the liquid pressure in the third pipeline interface through a pressure sensor; when the liquid pressure reaches a preset pressure value, the control board issues a control command to shut down the air pump, so as to enter the immersion cleaning stage, in which the roller brush is soaked in clean water.

[0013] According to a self-cleaning method for a floor scrubber provided by the present invention, the self-cleaning mode includes a pipeline flushing stage; after the soaking and decontamination stage is completed, the control board issues a control command to turn on the air pump and the drain solenoid valve to enter the pipeline flushing stage, discharge wastewater and clean the pipeline with water flow; after the pipeline flushing stage is completed, the control board first issues a control command to close the spray control valve and provides feedback to the user that the self-cleaning mode has ended.

[0014] According to a self-cleaning method for a floor scrubber provided by the present invention, the running time of the soaking and decontamination stage and / or the pipe flushing stage is a preset fixed duration; or, the running time of the soaking and decontamination stage and / or the pipe flushing stage is a duration set by the user through the control panel before activating the self-cleaning mode of the control panel.

[0015] The self-cleaning system and method for floor scrubbers provided by this invention utilize pipeline cleaning accessories within the system. This allows wastewater in the wastewater tank to be discharged along the second and third pipeline interfaces and the drain pipe during the self-cleaning process. Furthermore, with the first and second circuit interfaces connected, the operation of the drain solenoid valve is centrally controlled by the control board. This overcomes the shortcomings of existing automatic cleaning methods, which are limited by the capacity of the clean water and wastewater tanks, resulting in unsatisfactory cleaning effects. This significantly improves the cleaning performance of the floor scrubber. Moreover, after cleaning, the wastewater in the scrubber's tank and the pipelines can be discharged through the pipeline cleaning accessories, eliminating the need for manual wastewater emptying and reducing the user's burden, thus enhancing the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural block diagram of the self-cleaning system for floor scrubbers provided by the present invention;

[0018] Figure 2 This is a structural block diagram of the floor scrubber body of the self-cleaning floor scrubber system provided by the present invention.

[0019] Figure label:

[0020] Floor scrubber body 100; clean water tank 110; first pipeline interface 111; first sealing cover 112; spray control valve 113; wastewater tank 120; second pipeline interface 121; second sealing cover 122; air pump 123; control board 130; roller brush 140; roller brush motor 141; spray nozzle 142; water suction port 143; first circuit interface 131; pipeline cleaning accessories 200; third pipeline interface 201; drain solenoid valve 202; second circuit interface 203; pressure sensor 204. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components, an indirect connection, or an interaction between two components.

[0023] After a floor scrubber finishes its work, the roller brush often needs to be cleaned due to its ability to absorb dirt, preventing residue and odor. To reduce the burden on users, a self-cleaning solution for floor scrubbers has been proposed, using clean water from the scrubber's clean water tank to clean the roller brush, and then sucking the cleaned wastewater into the wastewater tank. However, traditional automatic cleaning methods are limited by the capacity of the clean water and wastewater tanks, resulting in unsatisfactory cleaning effects, and users still need to empty the wastewater manually, leading to a poor user experience. To address the shortcomings of existing automatic cleaning methods, such as limited clean water and wastewater tank capacity, unsatisfactory cleaning effects, and the need for users to empty wastewater manually, this invention provides a self-cleaning system for floor scrubbers. This system improves the cleaning effect and reduces the user's burden by using a pipeline cleaning accessory 200 that works in conjunction with the floor scrubber body 100 during the self-cleaning process.

[0024] The following is combined Figures 1-2 The self-cleaning system for floor scrubbers of the present invention is described.

[0025] This invention provides a self-cleaning system for a floor scrubber, comprising: a floor scrubber body 100 and a pipeline cleaning accessory 200. For example... Figure 1 and Figure 2 As shown, the floor scrubber body 100 includes a clean water tank 110, a wastewater tank 120, and a control board 130. The clean water tank 110 is provided with a first pipe interface 111 for injecting clean water into the clean water tank 110, and the wastewater tank 120 is provided with a second pipe interface 121 for discharging wastewater. Figure 1 As shown, the pipe cleaning accessory 200 includes a drain pipe connected to the sewer and a third pipe interface 201 that can connect to the second pipe interface 121. A drain solenoid valve 202 is provided between the third pipe interface 201 and the drain pipe. The floor scrubber body 100 is provided with a first circuit interface 131 that connects to the control board 130, and the pipe cleaning accessory 200 is provided with a second circuit interface 203 that connects to the drain solenoid valve 202. The first circuit interface 131 can mate with the second circuit interface 203 to connect the control board 130 to the drain solenoid valve 202.

[0026] Through the aforementioned pipeline cleaning accessory 200, during the self-cleaning process of the floor scrubber body 100, the wastewater in the wastewater tank 120 can be discharged along the second pipeline interface 121, the third pipeline interface 201, and the drain pipe. Furthermore, with the first circuit interface 131 connected to the second circuit interface 203, the cleaning process of the floor scrubber body 100 and the operating status of the drain solenoid valve 202 are uniformly controlled by the control board 130. This allows for the injection of clean water through the first pipeline interface 111 during the self-cleaning process and the control of the drain solenoid valve 202 for drainage. This solves the problem of unsatisfactory cleaning results caused by the limited capacity of the clean water and wastewater tanks in existing automatic cleaning methods, thereby improving the cleaning effect of the floor scrubber. Moreover, after cleaning, the wastewater in the floor scrubber body 100's wastewater tank 120 and the wastewater in the pipeline can be discharged through the pipeline cleaning accessory 200, eliminating the need for users to manually empty the wastewater, reducing the user's burden, and improving the user experience.

[0027] According to the self-cleaning system of a floor scrubber provided by the present invention, the first circuit interface 131 is a female interface and the second circuit interface 203 is a male interface that matches the first circuit interface 131.

[0028] The drain pipe of the pipe cleaning accessory 200 needs to be connected to a sewer or outdoors; therefore, preferably, the pipe cleaning accessory 200 has a fixed placement location. When the floor scrubber body 100 is used by the user for floor cleaning, the protruding electrical interface on its surface may be damaged due to impact. Therefore, according to the above embodiment, the first circuit interface 131 is configured as a female interface, and the second circuit interface 203 is configured as a male interface that matches the first circuit interface 131. This allows the first circuit interface 131 of the female interface to be positioned without protruding from the surface of the floor scrubber body 100, thereby improving the safety and reliability of the electrical interface.

[0029] According to the present invention, a self-cleaning system for a floor scrubber includes a pipeline cleaning accessory 200 comprising a pressure sensor 204. For example... Figure 1 As shown, pressure sensor 204 is installed at the third pipe interface 201 to detect the liquid pressure within the third pipe interface 201, thereby determining the amount of sewage in the sewage tank 120 based on the liquid pressure. Pressure sensor 204 is connected to the second circuit interface 203 to feed back the liquid pressure information within the third pipe interface 201 to the control board 130 when the first circuit interface 131 and the second circuit interface 203 are connected and engaged.

[0030] During use, the control board 130 can determine whether wastewater needs to be discharged based on changes in the aforementioned liquid pressure information. This allows the self-cleaning mode to continue operating when there is excessive wastewater in the wastewater tank 120. For example, the control board 130 can be set with a preset pressure value, and drainage will occur when the liquid pressure in the third pipe interface 201 reaches this preset pressure value; alternatively, changes in liquid pressure information can be used to determine the self-cleaning progress of the floor scrubber's self-cleaning system.

[0031] According to the self-cleaning system of a floor scrubber provided by the present invention, a first pipe interface 111 is provided with a first sealing cap 112 to close the first pipe interface 111 when water injection is not required; and / or, a second pipe interface 121 is provided with a second sealing cap 122 to close the second pipe interface 121 when drainage is not required.

[0032] like Figure 1 As shown, when the first sealing cover 112 is opened, the first pipe interface 111 can be connected to the water inlet pipe, allowing clean water to be injected into the clean water tank 110 from the outside; when the second sealing cover 112 is opened, the second pipe interface 121 can be connected to the third pipe interface 201, allowing the wastewater tank 120 to drain through the drain pipe of the pipe cleaning accessory 200. Figure 2 As shown, when the floor scrubber body 100 is disconnected from the cleaning accessory 200, the first sealing cover 112 and the second sealing cover 122 can be closed to prevent debris from entering the clean water tank 110 and to prevent sewage leakage.

[0033] According to the self-cleaning system of a floor scrubber provided by the present invention, the first sealing cover 112 and / or the second sealing cover 122 may be configured in any of the following opening and closing methods: the first sealing cover 112 and / or the second sealing cover 122 are configured to be manually opened and closed; or, the first sealing cover 112 and / or the second sealing cover 122 are configured to be elastically opened and closed, so that when the first pipeline interface 111 and / or the second pipeline interface 121 is connected to the external pipeline, the first sealing cover 112 and / or the second sealing cover 122 are pushed open; or, the first sealing cover 112 and / or the second sealing cover 122 are driven to open and close by an electric actuator, the electric actuator being connected to the control board 130 to drive the first sealing cover 112 and / or the second sealing cover 122 to open and close according to the instructions of the control board 130.

[0034] According to the self-cleaning system for a floor scrubber provided by the present invention, it preferably further includes a charging base station, which is used to house the floor scrubber body 100 and to supply power to the floor scrubber body 100. The pipeline cleaning accessory 200 is installed independently of the charging base station, or preferably, the pipeline cleaning accessory 200 is integrated with the charging base station, thereby giving the pipeline cleaning accessory 200 a relatively fixed position relative to the charging base station. When the floor scrubber body 100 is positioned on the charging base station, it can easily connect to the first circuit interface 131 and the second circuit interface 203, as well as the second pipeline interface 121 and the third pipeline interface 201. Furthermore, the charging base station may also be provided with a water supply pipe connected to a tap water supply pipe. When the floor scrubber body 100 is positioned on the charging base station, it can connect to the first pipeline interface 111 of the floor scrubber body 100 through this water supply pipe, thereby allowing water to be injected into the clean water tank 110.

[0035] This invention also provides a self-cleaning method for a floor scrubber, which can be applied to any of the self-cleaning systems for floor scrubbers described above. The self-cleaning method for a floor scrubber provided by this invention is described below, and the self-cleaning method described below can be referred to in correspondence with the self-cleaning system for a floor scrubber described above.

[0036] like Figure 1 and Figure 2 As shown, the floor scrubber body 100 preferably also includes a roller brush 140 and a roller brush motor 141 for driving the roller brush 140 to rotate. The roller brush motor 141 is connected to the control board 130. A spray port 142 and a water suction port 143 are provided adjacent to the roller brush 140. The spray port 142 is connected to the clean water tank 110 through a pipe. A spray control valve 113 connected to the control board 130 is provided between the spray port 142 and the clean water tank 110. The water suction port 143 is connected to the wastewater tank 120 through a pipe. An air pump 123 connected to the control board 130 is provided in the wastewater tank 120.

[0037] The self-cleaning method of the floor scrubber includes: placing the floor scrubber body 100 into the charging base station and connecting it with the pipeline cleaning accessory 200; activating the self-cleaning mode of the control board 130; the control board 130 issuing a control command to close the drain solenoid valve 202, open the spray control valve 113, and start the roller brush motor 141 and air pump 123 to clean the roller brush 140; when wastewater needs to be discharged, the control board 130 issuing a control command to open the drain solenoid valve 202; after the self-cleaning mode ends, the control board 130 issuing a control command to close the spray control valve 113, the drain solenoid valve 202, the roller brush motor 141, and the air pump 123.

[0038] like Figure 1 As shown, in the self-cleaning mode described above, by opening the spray control valve 113, clean water in the clean water tank 110 is sprayed onto the roller brush 140, thus wetting the roller brush 140. By starting the roller brush motor 141, the roller brush 140 rotates while being sprayed, causing dirt adhering to the roller brush 140 to fall off with the water. By operating the air pump 123, a negative pressure environment is generated in the wastewater tank 120, thereby drawing in wastewater through the suction port 143. When the wastewater in the wastewater tank 120 needs to be discharged, the control panel 130 can control the drain solenoid valve 202 to open, allowing the wastewater to be discharged through the drain pipe of the pipe cleaning accessory 200. According to the self-cleaning method of this floor scrubber, the self-cleaning mode is free from the capacity limitations of the clean water tank 110 and the wastewater tank 120. With the ability to inject water into the clean water tank 110 through the first pipe interface 111 and to discharge wastewater through the connection of the second pipe interface 121 and the third pipe interface 201, the self-cleaning method of this floor scrubber can achieve a more thorough cleaning of the floor scrubber body 100.

[0039] According to the self-cleaning method of a floor scrubber provided by the present invention, the self-cleaning mode preferably includes an immersion cleaning stage. In the self-cleaning mode, the control board 130 obtains the liquid pressure in the third pipeline interface 201 through the pressure sensor 204; when the liquid pressure reaches the preset pressure value, the control board 130 issues a control command to shut down the air pump 123 to enter the immersion cleaning stage, in which the roller brush 140 is immersed in clean water.

[0040] The pressure sensor 204 obtains the liquid pressure within the third pipe interface 201, which can be used to determine the amount of sewage in the sewage tank 120. The higher the liquid pressure, the more sewage is in the sewage tank 120. By setting a preset pressure value, the soaking and decontamination stage can be initiated when the sewage volume reaches a certain level. The roller brush 140 is then soaked in clean water, causing the dirt deeply attached to the roller brush 140 to loosen and diffuse. During the soaking and decontamination stage, the roller brush 140 can remain stationary or continue to operate at a normal or lower speed driven by the roller brush motor 141.

[0041] According to the self-cleaning method of a floor scrubber provided by the present invention, the self-cleaning mode preferably further includes a pipeline flushing stage. After the soaking and decontamination stage is completed, the control board 130 issues a control command to turn on the air pump 123 and the drain solenoid valve 202 to enter the pipeline flushing stage, discharge wastewater and clean the pipeline with water flow; after the pipeline flushing stage is completed, the control board 130 first issues a control command to close the spray control valve 113 and provides the user with a prompt message indicating that the self-cleaning mode has ended.

[0042] After the air pump 123 and drain solenoid valve 202 are turned on, the wastewater will first be discharged through the drain pipe of the pipe cleaning accessory 200. Then, during the rinsing stage, the flowing clean water can rinse the wastewater tank 120 and the suction and discharge pipes of the floor scrubber body 100, preventing residual dirt from adhering to the inner walls of the wastewater tank 120 and the pipes. After the pipe rinsing is completed, the spray control valve 113 is first closed to cut off the clean water supply, and then the remaining power components are turned off after the water in the wastewater tank is drained. The drainage progress can be monitored by the change in the detection value of the pressure sensor 204.

[0043] According to the self-cleaning method for a floor scrubber provided by the present invention, the running time of the soaking and decontamination stage and / or the pipe rinsing stage is a preset fixed duration; or, the running time of the soaking and decontamination stage and / or the pipe rinsing stage is a duration set by the user through the control panel 130 before activating the self-cleaning mode, thereby allowing the user to flexibly select a more suitable cleaning intensity according to the degree of dirt in the floor scrubbing operation. It is understood that the longer the set duration, the better the cleaning effect.

[0044] The control board 130 of the floor scrubber body 100 in this invention may include a processor, a communication interface, a memory, and a communication bus, wherein the processor, communication interface, and memory communicate with each other through the communication bus. The processor can call logical instructions in the memory to execute the self-cleaning method of the floor scrubber.

[0045] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0046] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the self-cleaning method for the floor scrubber provided by the above methods.

[0047] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the self-cleaning method for a floor scrubber provided by the methods described above.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0049] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A self-cleaning system for a floor scrubber, characterized in that, include: The floor scrubber body (100) includes a clean water tank (110), a wastewater tank (120) and a control board (130). The clean water tank (110) is provided with a first pipe interface (111) for injecting clean water into the clean water tank (110), and the wastewater tank (120) is provided with a second pipe interface (121) for discharging wastewater. Pipe cleaning accessory (200) includes a drain pipe connected to the sewer and a third pipe interface (201) that can be connected to the second pipe interface (121). A drain solenoid valve (202) is provided between the third pipe interface (201) and the drain pipe. The floor scrubber body (100) is provided with a first circuit interface (131) connected to the control board (130), and the pipeline cleaning accessory (200) is provided with a second circuit interface (203) connected to the drain solenoid valve (202). The first circuit interface (131) can be connected to the second circuit interface (203) so that the control board (130) is connected to the drain solenoid valve (202). The pipeline cleaning accessory (200) includes a pressure sensor (204), which is installed on the third pipeline interface (201) to detect the liquid pressure in the third pipeline interface (201); The pressure sensor (204) is connected to the second circuit interface (203) so that when the first circuit interface (131) and the second circuit interface (203) are connected and cooperated, the pressure information of the liquid in the third pipeline interface (201) is fed back to the control board (130).

2. The self-cleaning system for floor scrubbers according to claim 1, characterized in that, The first circuit interface (131) is a female connector, and the second circuit interface (203) is a male connector that matches the first circuit interface (131).

3. The self-cleaning system for floor scrubbers according to claim 1, characterized in that, The first pipeline interface (111) is provided with a first sealing cap (112); and / or, the second pipeline interface (121) is provided with a second sealing cap (122).

4. The self-cleaning system for a floor scrubber according to claim 3, characterized in that, The first sealing cover (112) and / or the second sealing cover (122) are configured to be manually opened and closed; Alternatively, the first sealing cap (112) and / or the second sealing cap (122) are configured to open and close elastically, so that when the first pipeline interface (111) and / or the second pipeline interface (121) are connected to an external pipeline, the first sealing cap (112) and / or the second sealing cap (122) are opened. Alternatively, the first sealing cover (112) and / or the second sealing cover (122) may be opened and closed by an electric actuator connected to the control board (130) to drive the first sealing cover (112) and / or the second sealing cover (122) to open and close according to the instructions of the control board (130).

5. The self-cleaning system for a floor scrubber according to any one of claims 1-4, characterized in that, Includes a charging base station, which is used to house the floor scrubber body (100) and to supply power to the floor scrubber body (100); The pipeline cleaning auxiliary tool (200) is set independently of the charging base station, or the pipeline cleaning auxiliary tool (200) is integrated with the charging base station.

6. A self-cleaning method for a floor scrubber, characterized in that, The self-cleaning method of the floor scrubber is applied to the self-cleaning system of the floor scrubber as described in claim 5; The floor scrubber body (100) includes a roller brush (140) and a roller brush motor (141) for driving the roller brush (140) to rotate. The roller brush motor (141) is connected to the control board (130). A spray port (142) and a water suction port (143) are provided adjacent to the roller brush (140). The spray port (142) is connected to the clean water tank (110) through a pipeline. A spray control valve (113) connected to the control board (130) is provided between the spray port (142) and the clean water tank (110). The water suction port (143) is connected to the wastewater tank (120) through a pipeline. An air pump (123) connected to the control board (130) is provided in the wastewater tank (120). Self-cleaning methods include: Place the floor scrubber body (100) into the charging base station and connect it with the pipeline cleaning accessory (200); The self-cleaning mode of the control board (130) is activated; The control board (130) issues control commands to close the drain solenoid valve (202), open the spray control valve (113), and start the roller brush motor (141) and the air pump (123) to clean the roller brush (140); When sewage needs to be discharged, the control panel (130) issues a control command to open the drain solenoid valve (202); After the self-cleaning mode ends, the control board (130) issues a control command to shut down the spray control valve (113), the drain solenoid valve (202), the roller brush motor (141), and the air pump (123).

7. The self-cleaning method for a floor scrubber according to claim 6, characterized in that, The self-cleaning mode includes a soaking and decontamination stage; In the self-cleaning mode, the control board (130) obtains the liquid pressure in the third pipeline interface (201) through the pressure sensor (204); When the liquid pressure reaches the preset pressure value, the control board (130) issues a control command to shut down the air pump (123) to enter the soaking and cleaning stage, in which the roller brush (140) is soaked in clean water.

8. The self-cleaning method for a floor scrubber according to claim 7, characterized in that, The self-cleaning mode includes a pipeline flushing phase; After the soaking and decontamination stage is completed, the control board (130) issues a control command to open the air pump (123) and the drain solenoid valve (202) to enter the pipeline flushing stage, discharge sewage and clean the pipeline with water flow; After the pipeline flushing stage is completed, the control panel (130) first issues a control command to close the spray control valve (113) and then sends a prompt message to the user indicating that the self-cleaning mode has ended.

9. The self-cleaning method for a floor scrubber according to claim 8, characterized in that, The duration of the soaking and decontamination stage and / or the pipeline flushing stage is a preset fixed duration. Alternatively, the duration of the soaking and cleaning phase and / or the pipe flushing phase is the duration set by the user via the control panel (130) before activating the self-cleaning mode of the control panel (130).

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