Pipeline residual water recovery method of cleaning equipment and cleaning equipment

Abstract

The embodiment of the invention provides a pipeline residual water recycling method of cleaning equipment and the cleaning equipment, and the pipeline residual water recycling method comprises the steps that whether it is detected that a high-temperature mode of the cleaning equipment is triggered or not is determined; and under the condition that the high-temperature mode is triggered, according to a control strategy corresponding to the triggered high-temperature mode, the water pumping motor is controlled to rotate reversely, residual water in the pipeline behind the control valve is recycled, and the water in the pipeline behind the control valve is reversely pumped back. Thus, the residual water in the pipeline is recycled, waste of the residual water in the pipeline is avoided, the service life of the cleaning equipment is prolonged, an accessory brush of the cleaning equipment is prevented from being in a dripping state, the residual water can be prevented from dripping to scald a user, and the user experience is greatly improved; and the pipeline structure of the cleaning equipment is utilized, a new recovery loop does not need to be added, the cost is reduced, and the production and development efficiency of the cleaning equipment is improved.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of smart home, and particularly to a method for recovering residual water in the pipeline of a cleaning device. The embodiments of this specification also relate to another method for recovering residual water in the pipeline of a cleaning device, a cleaning device, and a control unit for recovering residual water in the pipeline of a cleaning device. Background Art

[0002] With the rapid development of computer technology, Internet technology, and artificial intelligence technology, various smart home devices have gradually been applied in all aspects of work and life. For example, after years of development, cleaning devices have shown a development trend of automation, functionality, diversification, and specialization, and have been widely used in daily life. People can use cleaning devices to complete corresponding cleaning operations.

[0003] In the prior art, cleaning devices generally have a water spraying mode and a high-temperature mode. The high-temperature mode generally includes a steam mode and a hot water mode. During the normal use of the cleaning device, water will fill the entire pipeline of the cleaning device. After use, the residual water in the pipeline will continuously drip or flow out from the water spraying part of the accessory brush, resulting in poor user experience. On the other hand, if the steam mode is switched to after the water spraying mode, the steam will squeeze out the residual clean water in the pipeline, and the water spraying part of the accessory brush will be in a dripping state for a period of time, causing waste of water and a decline in user experience. Moreover, after using the hot water mode, hot water will remain in the pipeline, and the remaining hot water will drip or flow out from the water spraying part of the accessory brush, which is likely to scald users. Summary of the Invention

[0004] In view of this, the embodiments of this specification provide a method for recovering residual water in the pipeline of a cleaning device. One or more embodiments of this specification also relate to another method for recovering residual water in the pipeline of a cleaning device, a cleaning device, and a control unit for recovering residual water in the pipeline of a cleaning device, so as to solve the technical defects existing in the prior art.

[0005] According to the first aspect of the embodiments of this specification, a method for recovering residual water in the pipeline of a cleaning device is provided. The cleaning device is configured with a clean water bucket, a water pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the water pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is also connected to the accessory brush. The method for recovering residual water in the pipeline includes:

[0006] Determine whether it is detected that the high-temperature mode of the cleaning device is triggered;

[0007] When the high-temperature mode is triggered, according to the control strategy corresponding to the triggered high-temperature mode, control the water pump motor to reverse, and recover the residual water in the pipeline after the control valve, where the reverse rotation of the water pump motor means to reverse the extraction of the water in the pipeline after the control valve.

[0008] According to the second aspect of the embodiments of the present specification, a method for recovering residual water in the pipeline of a cleaning device is provided. The cleaning device is configured with a clean water bucket, a conveying motor, a control valve, a heating device, and a hand-held accessory brush. The clean water bucket, the conveying motor, the control valve, the heating device, and the hand-held accessory brush are sequentially connected through pipelines, and the control valve is also connected to the hand-held accessory brush;

[0009] The method for recovering residual water in the pipeline includes:

[0010] Control the conveying motor to reverse, and recover the residual water in the pipeline after the control valve, where the reverse rotation of the conveying motor means to reverse the extraction of the water in the pipeline after the control valve.

[0011] According to the third aspect of the embodiments of the present specification, a cleaning device is provided. The cleaning device is configured with a clean water bucket, a water pump motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the water pump motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is also connected to the accessory brush;

[0012] The water pump motor rotates forward to convey the water in the clean water bucket along the control valve to the accessory brush to achieve the water spraying function; or,

[0013] The water pump motor rotates in reverse to recover the residual water in the pipeline after the control valve to achieve the residual water recovery function; or,

[0014] The water pump motor rotates forward to pump the water in the clean water bucket along the control valve to the heating device, control the heating device to start working to prepare steam or hot water, where the steam or hot water is conveyed to the accessory brush and ejected through the accessory brush to achieve the steam or hot water function.

[0015] According to the fourth aspect of the embodiments of the present specification, a control unit for recovering residual water in the pipeline of a cleaning device is provided. The cleaning device is configured with a clean water bucket, a water pump motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the water pump motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is also connected to the accessory brush;

[0016] The control unit for recovering residual water in the pipeline includes:

[0017] A determination module, configured to determine whether the high-temperature mode of the cleaning device is detected to be triggered;

[0018] A control module, configured to control the water pumping motor to reverse in the case where the high-temperature mode is triggered, so as to recover the residual water in the pipeline after the control valve, wherein the reverse rotation of the water pumping motor means to reversely pump the water in the pipeline after the control valve.

[0019] According to a fifth aspect of the embodiments of the present specification, a cleaning device is provided. The cleaning device is configured with a clean water bucket, a water pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the water pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is further connected to the accessory brush;

[0020] Moreover, the cleaning device is further configured with a memory and a processor;

[0021] The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the steps of the method for recovering residual water in the pipeline of the above-mentioned cleaning device.

[0022] The embodiments of the present specification provide a method for recovering residual water in the pipeline of a cleaning device. The cleaning device is configured with a clean water bucket, a water pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the water pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is further connected to the accessory brush; the method for recovering residual water in the pipeline includes: determining whether the high-temperature mode of the cleaning device is detected to be triggered; in the case where the high-temperature mode is triggered, according to the control strategy corresponding to the triggered high-temperature mode, controlling the water pumping motor to reverse, so as to recover the residual water in the pipeline after the control valve, wherein the reverse rotation of the water pumping motor means to reversely pump the water in the pipeline after the control valve.

[0023] In the embodiments of the present specification, in the case of triggering the high-temperature mode, the water pumping motor can be controlled to reverse according to the control strategy corresponding to the triggered high-temperature mode, so as to reversely recover the residual water in the pipeline after the control valve, avoiding the waste of the residual water in the pipeline, increasing the service life of the cleaning device, and avoiding the accessory brush of the cleaning device being in a dripping state, greatly improving the user experience, and avoiding the residual water from dripping and scalding the user. Moreover, by reversing the water pumping motor and the control valve to realize the backwater of the residual water in the pipeline, the original pipeline structure of the cleaning device is utilized, without adding a new recovery circuit, reducing the cost, and improving the production and development efficiency of the cleaning device. Description of the Drawings

[0024] Figure 1It is a flowchart of a method for recovering residual water in a pipeline of a cleaning device provided by an embodiment of this specification;

[0025] Figure 2 It is a schematic structural diagram of a cleaning device provided by an embodiment of this specification;

[0026] Figure 3 It is a schematic diagram of the residual water recovery process of the first cleaning device provided by an embodiment of this specification;

[0027] Figure 4 It is a schematic diagram of the residual water recovery process of the second cleaning device provided by an embodiment of this specification;

[0028] Figure 5 It is a schematic diagram of the residual water recovery process of the third cleaning device provided by an embodiment of this specification;

[0029] Figure 6 It is a schematic diagram of the residual water recovery process of the fourth cleaning device provided by an embodiment of this specification;

[0030] Figure 7 It is a schematic diagram of the steam preparation process of a cleaning device provided by an embodiment of this specification;

[0031] Figure 8 It is a schematic diagram of the steam preparation process of another cleaning device provided by an embodiment of this specification;

[0032] Figure 9 It is a flowchart of a method for recovering residual water in a pipeline of another cleaning device provided by an embodiment of this specification;

[0033] Figure 10 It is a schematic structural diagram of another cleaning device provided by an embodiment of this specification;

[0034] Figure 11 It is a schematic structural diagram of yet another cleaning device provided by an embodiment of this specification;

[0035] Figure 12 It is a schematic structural diagram of a control unit for recovering residual water in a pipeline of a cleaning device provided by an embodiment of this specification;

[0036] Figure 13 It is a schematic diagram of the system architecture of a cleaning device provided by an embodiment of this specification. Detailed implementation manners

[0037] In the following description, numerous specific details are set forth to provide a thorough understanding of this specification. However, this specification can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of this specification. Therefore, this specification is not limited by the specific implementations disclosed below.

[0038] The terms used in one or more embodiments of this specification are for the purpose of describing specific embodiments only and are not intended to limit one or more embodiments of this specification. The singular forms "a", "the", and "said" used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0039] It should be understood that although the terms first, second, etc. may be used in one or more embodiments of this specification to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein can be interpreted as "when" or "while" or "in response to determining".

[0040] In this specification, a method for recovering residual water in the pipeline of a cleaning device is provided. This specification also relates to a method for recovering residual water in the pipeline of a cleaning device, a cleaning device, and a control unit for recovering residual water in the pipeline of a cleaning device, which will be described in detail one by one in the following embodiments.

[0041] See Figure 1 , Figure 1 shows a flowchart of a method for recovering residual water in the pipeline of a cleaning device according to an embodiment of this specification. The recovery method specifically includes the following steps 102 - 104.

[0042] Step 102: Determine whether it is detected that the high-temperature mode of the cleaning device is triggered.

[0043] Specifically, the cleaning device may include a floor washer, a fabric cleaning machine, or other cleaning devices with a long water pipe, etc.

[0044] It should be noted that Figure 2 is a schematic structural diagram of a cleaning device provided by an embodiment of this specification, as Figure 2As shown, the cleaning device includes a main unit and an accessory brush. The main unit includes a clean water bucket, a pumping motor, a control valve, and a heating device. The accessory brush can be provided with an independent water spraying member and a steam port ( Figure 2 (not shown in the figure), the steam and water on the accessory brush can be delivered through the same pipeline, but the outlets can be different, that is, the water spraying part is used to spray water, and the steam outlet is used to spray steam; or, the accessory brush may not be provided with an independent steam outlet, and water and steam are sprayed through the same water spraying part. The accessory brush can be a handheld accessory brush connected to the main machine, or it can be an accessory brush provided on the main machine and integrated with the main machine.

[0045] In addition, the clean water bucket, the pumping motor, the control valve, the heating device and the accessory brush are connected in sequence through pipelines, and the control valve is also connected to the accessory brush. Among them, the heating device can be a boiler, a heating box, etc.

[0046] In addition, the main machine may further include a multi-way connector, which is respectively connected to the control valve, the heating device and the accessory brush, so as to connect the heating device to the accessory brush and connect the control valve to the accessory brush. Figure 2 As shown, the clean water bucket, the water pumping motor, the control valve, the heating device, the multi-way connector and the accessory brush are connected in sequence through pipelines, and the control valve and the multi-way connector are also connected through pipelines.

[0047] Among them, the pumping motor can be a motor that can generate driving force, which is used to control the pumping of water in the pipeline of cleaning equipment. The pumping motor can be a driving motor such as a peristaltic pump or a diaphragm pump. The peristaltic pump is also called a hose pump, which is widely used in various fields to realize liquid transportation. The peristaltic pump includes a driver, a pump head and a hose. The fluid is isolated in the pump tube, the pump tube can be quickly replaced, the fluid is reversible, and it can run dry, and the maintenance cost is low; the diaphragm pump is the full name of a reciprocating diaphragm pump. The device uses a thin film to separate the transported liquid from the piston and the pump cylinder, thereby protecting the piston and the pump cylinder. It is also called a control pump, which is the main type of actuator. It receives control signals and uses power to control liquid transportation. It has the advantages of wide flow and good passing performance, and can be used to pump general clean water.

[0048] In addition, the control valve refers to a reversing valve with multi-phase and multi-pass functions, which has at least two passage control functions, such as solenoid valves, air valves, etc. The control valve can control the direction of water flow, so as to realize the recovery of residual water in the pipeline in combination with the pumping motor, and utilize the pipeline structure of the cleaning equipment itself, without adding additional components or recovery circuits, to realize the return water function, thus reducing costs.

[0049] In specific implementation, the cleaning device is generally in the water spray mode by default and sprays water normally; the cleaning device can also include a high temperature mode, which can include a steam mode and a hot water mode. In the steam mode, the accessory brush can spray steam, and in the hot water mode, the accessory brush can spray hot water.

[0050] It should be noted that, as Figure 2 shown, when the cleaning device is in the water spraying mode and spraying water normally, the pumping motor works to convey water to the control valve. The control valve controls the passage leading to the heating device to be in a closed state and the passage leading to the accessory brush to be in an open state. The water passes through the multi-way joint and then flows to the accessory brush and sprays out from the water spraying parts on the accessory brush. Since the pipeline between the multi-way joint and the accessory brush is generally long, such as 1.5 m, the pipeline between the multi-way joint and the accessory brush is filled with water at this time. If it is directly switched to the steam mode, the control valve controls the passage leading to the heating device to be in an open state and the passage leading to the multi-way joint to be in a closed state. After the steam is prepared, as the steam sprays out, the residual water in the pipeline between the multi-way joint and the accessory brush will be squeezed out. Before the accessory brush sprays steam, the accessory brush will be in a dripping state for a period of time, resulting in waste of water and a poor user experience; if it is switched to the hot water mode, the control valve controls the passage leading to the heating device to be in an open state. After the hot water is prepared, it is conveyed to the accessory brush and sprayed out. After the hot water mode ends, there will be residual hot water in the pipeline between the multi-way joint and the accessory brush, and the residual hot water is squeezed out or drips, which may scald the user.

[0051] Therefore, in the embodiments of the present specification, it is possible to monitor whether the high-temperature mode of the cleaning device is triggered, so that in the subsequent case where the high-temperature mode is triggered, the residual water in the pipeline can be recovered, avoiding dripping of the accessory brush, saving water, and improving the user experience. In addition, the high-temperature mode may include a steam mode and a hot water mode. For different modes, different control strategies can be adopted based on actual needs when controlling the recovery of residual water subsequently.

[0052] Furthermore, in addition to recovering the residual water when the high-temperature mode is triggered as described above, the recovery of residual water can also be directly started. The residual water recovery program does not have to be bound to the high-temperature mode and can be triggered independently. For example, a return water control can be set on the cleaning device or its remote control device. The return water control can be a physical button or a virtual control in the display interface. After the user turns on the machine, when the return water control is triggered, the residual water in the pipeline is directly recovered.

[0053] In an optional implementation manner of this embodiment, determining whether it is detected that the high-temperature mode of the cleaning device is triggered includes:

[0054] In the case of receiving a mode switching instruction, if the target mode to be switched is the high-temperature mode, it is determined that it is detected that the high-temperature mode of the cleaning device is triggered; or,

[0055] In the case of receiving an opening instruction for the high-temperature mode after the cleaning device is turned on, it is determined that it is detected that the high-temperature mode of the cleaning device is triggered.

[0056] In practical applications, the user can control the switching of the working mode of the cleaning device. If the target mode to be switched to is the high-temperature mode, it can be determined that the high-temperature mode of the cleaning device is triggered. For example, the user can switch from the water spraying mode to the high-temperature mode. If the cleaning device monitors this switching instruction, it is determined that the high-temperature mode is triggered; or, since the high-temperature mode can include the hot water mode and the steam mode, if switching between these two high-temperature modes and the target mode of the switching is also the high-temperature mode, it can also be determined that the high-temperature mode of the cleaning device is triggered at this time. In addition, the cleaning device can directly enter the high-temperature mode after being powered on, that is, when the cleaning device receives the opening instruction of the high-temperature mode after being powered on, it indicates that the high-temperature mode is triggered.

[0057] It should be noted that the high-temperature mode includes the steam mode and the hot water mode. If the high-temperature mode is the steam mode, the residual water recovery scheme is mainly used when switching from the water spraying mode to the steam mode, and is not used when switching from the steam mode to the water spraying mode. For the steam mode - pause - steam mode, since the water flow rate is very small in the steam mode, even if condensed water forms in the water pipe in the pipeline, the amount is very small and there is no need to recover the residual water, so this scheme can also not be used, that is, no residual water recovery is performed. If the high-temperature mode is the hot water mode, the residual water recovery scheme can be applied when switching to the hot water mode or when directly entering the hot water mode after being powered on, to avoid scalding the user by the residual water after the hot water mode ends.

[0058] In addition, when the cleaning device is powered on, there are two situations: the high-temperature mode and the water spraying mode. When the water spraying mode is used after being powered on, residual water recovery may not be required, but if the high-temperature mode is directly used after being powered on, residual water recovery can be performed. For example, residual water is back-pumped while preparing steam or hot water, shortening the user's waiting time.

[0059] Step 104: When the high-temperature mode is triggered, according to the control strategy corresponding to the triggered high-temperature mode, control the pumping motor to reverse to recover the residual water in the pipeline after the control valve, where the reverse rotation of the pumping motor means back-pumping the water in the pipeline after the control valve in the reverse direction.

[0060] It should be noted that the pumping motor can be controlled to reverse to back-pump the water in the pipeline after the control valve in the reverse direction, and the residual water in the pipeline between the multi-way joint and the accessory brush is pumped back to the heating device or the clean water bucket for recovery. This not only avoids the residual water from hindering the ejection of steam or scalding the user with the residual hot water, but also saves water, increases the usage duration of the cleaning device, and avoids dripping of the accessory brush, improving the user experience.

[0061] In actual implementation, when the high-temperature mode is triggered, it indicates that steam or hot water needs to be prepared and ejected from the accessory brush. If there is residual water in the pipeline behind the control valve before steam is prepared, that is, the pipeline between the multi-way joint and the accessory brush is full of water, this residual water will hinder the ejection of steam, and under the extrusion of steam, it will drip out from the accessory brush, reducing the user experience. In addition, after the hot water ejection ends, there is residual water in the pipeline behind the control valve, that is, the pipeline between the multi-way joint and the accessory brush is full of water, and the dripping or extrusion of this residual water may scald the user. Therefore, when the high-temperature mode is triggered, it is necessary to reverse the suction of the water in the pipeline after the control valve to recover the residual water in the pipeline, and different high-temperature modes can correspond to different control strategies, and this control strategy can be configured based on the working characteristics of the high-temperature mode. For example, the control strategy corresponding to the steam mode can be to first recover the residual water and then start the steam mode; the control strategy corresponding to the hot water mode can be to start the hot water mode and then recover the residual water after the hot water mode ends.

[0062] In an optional implementation manner of this embodiment, the high-temperature mode includes a steam mode and a hot water mode. According to the control strategy corresponding to the triggered high-temperature mode, control the pumping motor to reverse to recover the residual water in the pipeline after the control valve, including:

[0063] When the high-temperature mode is the steam mode, control the pumping motor to reverse to recover the residual water in the pipeline after the control valve, and start the high-temperature mode after the residual water recovery is completed;

[0064] When the high-temperature mode is the hot water mode, start the high-temperature mode, and control the pumping motor to reverse to recover the residual water in the pipeline after the control valve after the high-temperature mode ends.

[0065] It should be noted that if the high-temperature mode is the steam mode, it is necessary to recover the residual water before starting the steam mode to avoid the residual water in the pipeline from hindering the ejection of steam and avoid the residual water from dripping out of the accessory brush under the extrusion of steam. Therefore, when the high-temperature mode is the steam mode, the pumping motor can be controlled to reverse first to recover the residual water in the pipeline after the control valve, and then start the high-temperature mode after the residual water recovery is completed.

[0066] In addition, if the high-temperature mode is the hot water mode, in order to avoid the residual water from dripping or extruding from the accessory brush and scalding the user, the residual water should be recovered after the hot water mode ends. Therefore, when the high-temperature mode is the hot water mode, first start the high-temperature mode, eject hot water for work, and then control the pumping motor to reverse to recover the residual water in the pipeline after the control valve after the high-temperature mode ends.

[0067] In the embodiments of this specification, the high-temperature mode includes a steam mode and a hot water mode. Different modes can adopt different residual water recovery strategies to avoid dripping of the accessory brush, save water, increase the usage duration of the cleaning device, and improve the user experience.

[0068] In an optional implementation manner of this embodiment, the pumping motor is controlled to reverse to recover the residual water in the pipeline after the control valve, including:

[0069] Control the pumping motor to reverse and close the passage from the heating device to the control valve to recover the residual water in the pipeline after the control valve.

[0070] In actual implementation, the pumping motor can be controlled to reverse to reversely suck the residual water in the pipeline after the control valve, and recover the residual water in the pipeline between the multi-way joint and the accessory brush to the clean water bucket or the heating device.

[0071] It should be noted that controlling the pumping motor to reverse can not only reversely recover the residual water in the pipeline between the multi-way joint and the accessory brush to the clean water bucket or the heating device, but also reversely suck the water in the heating device to the clean water bucket. However, since the heating device is used to heat water to generate steam, there may be impurities such as scale in the heating device. If the water in the heating device returns to the clean water bucket through the pumping motor, the impurities contained in the water in the heating device may block the pumping motor, resulting in a failure of the cleaning device, and the sucked water in the heating device will return to the clean water bucket, polluting the water in the clean water bucket.

[0072] Therefore, in the embodiments of this specification, when controlling the pumping motor to reverse, the passage from the heating device to the control valve can be simultaneously controlled to be closed, so that the residual water in the pipeline between the multi-way joint and the accessory brush can be reversely sucked and recovered to the clean water bucket or the heating device, but the water in the heating device cannot return reversely to the clean water bucket, avoiding blocking the pumping motor and ensuring that the water in the clean water bucket is not polluted.

[0073] In an optional implementation manner of this embodiment, the cleaning device is further configured with a multi-way joint, and the multi-way joint is respectively connected to the control valve, the heating device and the accessory brush. To recover the residual water in the pipeline after the control valve, it includes:

[0074] Open the passage between the control valve and the multi-way joint to recover the residual water in the pipeline after the control valve to the clean water bucket.

[0075] In one implementation, the residual water in the pipeline between the multi-way joint and the accessory brush can be recycled into the clean water bucket. Specifically, when implementing, the passage between the control valve and the multi-way joint can be opened. Under the action of the reverse force generated by the reverse rotation of the water pumping motor, the residual water in the pipeline between the multi-way joint and the accessory brush will pass through the multi-way joint, then flow through the passage between the multi-way joint and the control valve to the water pumping motor, and finally be recycled into the clean water bucket.

[0076] Figure 3 FIG. is a schematic diagram of the residual water recovery process of the first cleaning device provided by an embodiment of this specification. Taking the high-temperature mode as the steam mode as an example, as Figure 3 shown, when the steam mode is triggered, in the first stage, the water pumping motor is controlled to rotate in reverse, the passage from the heating device to the control valve is controlled to be closed, and the passage between the control valve and the multi-way joint is controlled to be unblocked. The residual water in the pipeline between the accessory brush and the multi-way joint passes through the control valve and the water pumping motor in sequence and returns to the clean water bucket, realizing the recycling of the residual water in the pipeline between the accessory brush and the multi-way joint into the clean water bucket. The recycling direction of the residual water is as Figure 3 shown by the arrow direction in FIG.

[0077] In the embodiment of this specification, when the high-temperature mode is triggered, the water pumping motor can be controlled to rotate in reverse, and the residual water in the pipeline between the accessory brush and the multi-way joint can be recycled into the clean water bucket, realizing the reuse of the residual water in the pipeline, avoiding the dripping or squeezing out of the residual water, saving water, increasing the usage duration of the cleaning device after adding water once, and improving the user experience.

[0078] In an optional implementation of this embodiment, to recycle the residual water in the pipeline after the control valve, it includes:

[0079] Closing the passage between the control valve and the multi-way joint, and recycling the residual water in the pipeline after the control valve into the heating device.

[0080] In another implementation, since in the high-temperature mode, the water in the clean water bucket needs to be transported to the heating device to prepare steam or hot water in the heating device, the residual water in the pipeline between the multi-way joint and the accessory brush can also be directly recycled into the heating device. Specifically, when implementing, the passage between the control valve and the multi-way joint can be closed. Under the action of the reverse force generated by the reverse rotation of the water pumping motor, the residual water in the pipeline between the multi-way joint and the accessory brush will pass through the multi-way joint and flow to the heating device. Since the passage from the heating device to the control valve is in a closed state, the residual water cannot flow from the heating device to the control valve and then back to the clean water bucket, and the residual water will stay in the heating device.

[0081] Figure 4 FIG. is a schematic diagram of the residual water recovery process of the second cleaning device provided by an embodiment of this specification. Taking the high-temperature mode as the steam mode as an example, asFigure 4 As shown, when the steam mode is triggered, in the first stage, the water pump motor is controlled to reverse, the passage from the heating device to the control valve is closed, and the passage between the multi-way joint and the control valve is closed. At this time, the residual water in the pipeline between the accessory brush and the multi-way joint directly enters the heating device, realizing the direct recovery of the residual water in the pipeline between the accessory brush and the multi-way joint to the heating device. The recovery direction of the residual water is as Figure 4 shown by the arrow direction in

[0082] In the embodiment of this specification, when the high-temperature mode is triggered, the water pump motor can be controlled to reverse first, and the residual water in the pipeline between the accessory brush and the multi-way joint is recovered into the heating device, shortening the recovery distance, saving the recovery time of the residual water, and realizing the reuse of the residual water in the pipeline.

[0083] In an optional implementation manner of this embodiment, closing the passage from the heating device to the control valve includes:

[0084] When the control valve has a three-way passage control function, closing the passage from the heating device to the control valve;

[0085] When the control valve has a two-way passage control function, a one-way control valve is provided between the control valve and the heating device, and the passage from the heating device to the control valve is closed through the one-way control valve.

[0086] It should be noted that in the above-mentioned residual water recovery scheme, when controlling the water pump motor to reverse, it is necessary to control the closing of the passage from the heating device to the control valve. In one implementation manner, the control valve has a three-way passage control function, that is, the control valve itself has a water locking function and can directly close the passage from the heating device to the control valve. At this time, the residual water recovery scheme is as Figure 3 and Figure 4 shown. In another implementation manner, the control valve has a two-way passage control function, that is, the control valve itself does not have a water locking function and cannot close the passage from the heating device to the control valve by controlling the control valve. At this time, a one-way control valve can be provided between the control valve and the heating device, and the passage from the heating device to the control valve is closed through the one-way control valve.

[0087] Figure 5 is a schematic diagram of the residual water recovery process of the third cleaning device provided by an embodiment of this specification. Taking the high-temperature mode as the steam mode as an example, as Figure 5As shown, a one-way control valve is provided between the control valve and the heating device. When the steam mode is triggered, in the first stage, the water pump motor is controlled to reverse, and the passage for the heating device to flow to the control valve is closed through this one-way control valve. At this time, if the passage between the control valve and the multi-way joint is open, the residual water in the pipeline between the accessory brush and the multi-way joint passes through the control valve and the water pump motor in sequence and returns to the clean water bucket, realizing the recovery of the residual water in the pipeline between the accessory brush and the multi-way joint into the clean water bucket. The recovery direction of the residual water is as Figure 5 shown by the arrow direction in

[0088] Figure 6 This is a schematic diagram of the residual water recovery process of the fourth cleaning device provided by an embodiment of this specification. Taking the high-temperature mode as the steam mode as an example, as Figure 6 shown, a one-way control valve is added between the control valve and the heating device. When the steam mode is triggered, in the first stage, the water pump motor is controlled to reverse, and the passage for the heating device to flow to the control valve is closed through this one-way control valve. At this time, if the passage between the control valve and the multi-way joint is also closed, the residual water in the pipeline between the accessory brush and the multi-way joint directly enters the heating device, realizing the direct recovery of the residual water in the pipeline between the accessory brush and the multi-way joint into the heating device. The recovery direction of the residual water is as Figure 6 shown by the arrow direction in

[0089] In the embodiments of this specification, the water locking function can be realized by using the control valve itself, or by adding a one-way control valve between the control valve and the heating device to realize the water locking function, avoiding the water in the heating device from returning to the clean water bucket. The control valve has a flexible selection and provides multiple implementation methods, which can adapt to various different application scenarios.

[0090] In an optional implementation manner of this embodiment, after the residual water recovery is completed, the high-temperature mode is started, including:

[0091] Determine whether the recovery completion condition is met;

[0092] If so, control the water pump motor to rotate forward, pump the water in the clean water bucket along the control valve to the heating device, control the heating device to start working to prepare steam, and the steam is transported to the accessory brush and ejected through the accessory brush.

[0093] It should be noted that for the triggered mode being the steam mode, after the residual water recovery is completed, the steam mode can be entered to start preparing steam. In actual implementation, it can first be determined whether the recovery completion condition is met; if so, it indicates that the residual water between the multi-way joint and the accessory brush has been recovered, and normal steam preparation can start. At this time, the water pumping motor can be controlled to rotate forward, and the water in the clean water bucket is pumped along the control valve to the heating device, and the heating device is controlled to start working to prepare steam. The prepared steam is transported to the accessory brush through the multi-way joint and ejected through the accessory brush; specifically, if there is an independent steam port on the accessory brush, the steam is ejected through this steam port, and if there is no independent steam port on the accessory brush, the steam is ejected through a unified water spraying member. That is to say, the steam mode is divided into two stages, one stage is residual water recovery, and the other stage is steam preparation. When the steam mode is triggered, the pipeline residual water is recovered first, and then the steam preparation mode is entered, avoiding water dripping from the accessory brush, saving water, and improving the user experience.

[0094] Continuing with the above example, taking the high-temperature mode as the steam mode as an example, for the above Figure 3 and Figure 4 shown residual water recovery scheme, the steam preparation process is as Figure 7 shown, Figure 7 is a schematic diagram of the steam preparation process of a cleaning device provided by an embodiment of this specification. As Figure 7 shown, water enters the heating device from the clean water bucket in sequence through the water pumping motor and the control valve, steam is prepared in the heating device, and the prepared steam passes through the multi-way joint and is transported to the accessory brush. The water flow direction during steam preparation is as Figure 7 shown by the arrow direction in

[0095] Continuing with the above example, taking the high-temperature mode as the steam mode as an example, for the above Figure 5 and Figure 6 shown residual water recovery scheme, the steam preparation process is as Figure 8 shown, Figure 8 is a schematic diagram of the steam preparation process of another cleaning device provided by an embodiment of this specification. As Figure 8 shown, water enters the heating device from the clean water bucket in sequence through the water pumping motor, the control valve, and the one-way control valve, steam is prepared in the heating device, and the prepared steam passes through the multi-way joint and is transported to the accessory brush. The water flow direction during steam preparation is as Figure 8 shown by the arrow direction in

[0096] In an optional implementation manner of this embodiment, determining whether the recovery completion condition is met includes:

[0097] Determining the recovery duration of the residual water;

[0098] Judging whether the recovery duration reaches the recovery duration threshold;

[0099] If so, it is determined that the recycling completion condition is satisfied.

[0100] It should be noted that the recycling completion of the residual water can be judged by the recycling duration of the residual water. Specifically, when implementing, the start time of recycling can be recorded when controlling the reverse rotation of the pumping motor, the recycling duration from the start time of recycling to the current time can be monitored, and it is determined whether the recycling duration reaches the recycling duration threshold. If it reaches, it means that the corresponding time has been recycled, and it is determined that the recycling completion condition is satisfied. By detecting the recycling duration of the residual water to detect whether the residual water is recycled, the monitoring method is simple and efficient, without adding other detection devices, saving costs. Since the recycling time threshold corresponds to the length of the water pipe between the multi-way joint and the accessory brush, different recycling duration thresholds can be switched by identifying the corresponding pipeline fittings.

[0101] In an optional implementation manner of this embodiment, before determining whether the recycling duration reaches the recycling duration threshold, it further includes:

[0102] Determine the recycling duration threshold by using the same cleaning equipment.

[0103] It should be noted that when detecting whether the residual water is recycled by the recycling duration of the residual water, the recycling duration threshold can also be determined in advance on the same cleaning equipment, so as to determine whether the recycling completion condition is satisfied, that is, whether the residual water is recycled, by the determined recycling duration threshold.

[0104] Specifically, when implementing, for the same cleaning equipment, in different scenarios, the time required for the recycling completion of the residual water can be measured multiple times, the test threshold can be determined according to the average time, and then a value slightly larger than the test threshold can be set as the recycling duration threshold, that is, leaving some extra time to ensure the complete recycling of the residual water. Specifically, a set value can be added to the test threshold to obtain the recycling duration threshold, and the set value is relatively small, such as 0.1 second, 0.5 second, 1 second, etc.

[0105] In an optional implementation manner of this embodiment, a sensor is configured between the clean water bucket and the pumping motor; determining whether the recycling completion condition is satisfied includes:

[0106] Monitoring whether water flows back to the clean water bucket through the pumping motor through the sensor;

[0107] If not, it is determined that the recycling completion condition is satisfied.

[0108] It should be noted that in addition to the above-mentioned use of the residual water recycling time to detect whether the residual water is recycled, since the cleaning equipment often sets a sensor, such as a photoelectric sensor, between the clean water bucket and the pumping motor to monitor whether there is water in the pipeline between the clean water bucket and the control motor in order to monitor the water volume of the clean water bucket.

[0109] Therefore, in the embodiments of this specification, the sensor can also be used to monitor whether water flows back to the clean water bucket through the pumping motor, that is, during the residual water recovery process, to monitor whether there is water in the pipeline between the water bucket and the control motor. If there is water, it means that there is still residual water being recovered into the clean water bucket, and the residual water recovery is not completed, not meeting the recovery completion condition; if there is no water, it means that no residual water is being recovered into the clean water bucket, the residual water recovery is completed, and the recovery completion condition is met. In this way, the components of the cleaning device itself can be used to monitor whether the residual water recovery is completed, without adding new components or additional control logic, saving costs.

[0110] It should be noted that for the solution of recovering to the heating device, the recovery duration method can be used for monitoring, or a sensor can be added on the upstream side of the heating device in the recovery flow path of the heating device to detect the residual water flowing into the heating device.

[0111] For the method for recovering residual water in the pipeline of the cleaning device provided by the embodiments of this specification, when the high-temperature mode is triggered, it can first be determined whether the triggered high-temperature mode is the steam mode or the hot water mode. Based on different high-temperature modes, through corresponding control strategies, the pumping motor is controlled to reverse, and the residual water in the pipeline after the control valve is reversely recovered, avoiding the waste of residual water in the pipeline, increasing the usage duration of the cleaning device with a single water addition, and avoiding the cleaning device from being in a dripping state. Furthermore, it avoids the residual hot water dripping in the hot water mode from scalding the user, greatly improving the user experience. Moreover, by reversing the pumping motor and using the control valve to achieve the return of the residual water in the pipeline, the existing pipeline structure of the cleaning device is utilized, without adding a new recovery circuit, reducing costs and improving the production and development efficiency of the cleaning device.

[0112] See Figure 9 , Figure 9 , which shows a flowchart of another method for recovering residual water in the pipeline of a cleaning device provided according to an embodiment of this specification. The cleaning device is configured with a clean water bucket, a conveying motor, a control valve, a heating device, and a handheld accessory brush. The clean water bucket, the conveying motor, the control valve, the heating device, and the handheld accessory brush are sequentially connected through pipelines, and the control valve is also connected to the handheld accessory brush; this method for recovering residual water in the pipeline specifically includes the following step 902.

[0113] Step 902: Control the conveying motor to reverse to recover the residual water in the pipeline after the control valve, where reversing the conveying motor means reversely pumping the water in the pipeline after the control valve.

[0114] In actual implementation, it is possible to detect whether the recycling completion condition is met during the recycling process. If not, the return water program continues to run; if so, the control stops the residual water recycling. This residual water recycling mode can be used as a drip prevention mode in the non-steam mode, that is, as automatic return water after the cleaning device sprays water to prevent dripping.

[0115] The method for recycling residual water in the pipeline of the cleaning device provided by the embodiments of this specification can directly start the recycling control to convey the motor to reverse, and reversely recycle the residual water in the pipeline after the control valve, avoiding the dripping or squeezing out of the residual water from the hand-held accessory brush, thus avoiding the waste of the residual water in the pipeline, increasing the usage duration of the cleaning device, and greatly improving the user experience. Moreover, by using the reverse rotation of the conveying motor and the control valve to realize the return water of the residual water in the pipeline, the original pipeline structure of the cleaning device is utilized, without adding a new recycling circuit, reducing the cost, and improving the production and development efficiency of the cleaning device.

[0116] The above is a schematic solution of a method for recycling residual water in the pipeline of a cleaning device in this embodiment. It should be noted that the technical solution of the method for recycling residual water in the pipeline of this cleaning device belongs to the same concept as the technical solution of the method for recycling residual water in the pipeline of the above cleaning device. For the details not described in detail in the technical solution of the method for recycling residual water in the pipeline of the cleaning device, reference can be made to the description of the technical solution of the method for recycling residual water in the pipeline of the above cleaning device.

[0117] Corresponding to the above method embodiments, this specification also provides embodiments of a cleaning device. Figure 10 Fig. shows a schematic structural diagram of another cleaning device provided by an embodiment of this specification. As Figure 10 shown, the cleaning device includes a main body and an accessory brush. The main body is configured with a clean water bucket 1, a pumping motor 2, a control valve 3, and a heating device 4. The accessory brush is configured with a water spraying member 5 and a steam port 6. The clean water bucket 1, the pumping motor 2, the control valve 3, the heating device 4, and the accessory brush (the water spraying member 5 and the steam port 6) are sequentially connected through pipelines, and the control valve 3 is also connected to the accessory brush;

[0118] When the pumping motor 2 rotates forward, the water in the clean water bucket 1 is conveyed along the control valve 3 to the accessory brush to realize the water spraying function; or,

[0119] When the pumping motor 2 rotates reversely, the residual water in the pipeline after the control valve 3 is recycled to realize the residual water recycling function; or,

[0120] When the pumping motor 2 rotates forward, the water in the clean water bucket 1 is pumped along the control valve 3 to the heating device 4, and the heating device 4 is controlled to start working to prepare steam or hot water. Among them, the steam or hot water is conveyed to the accessory brush and sprayed out through the accessory brush to realize the steam or hot water function.

[0121] In an alternative embodiment of this example, as Figure 10 shown, the cleaning device is further configured with a multi-way joint 7, which is respectively connected to a control valve 3, a heating device 4, and an accessory brush (a water spraying member 5 and a steam port 6), so as to connect the heating device 4 to the accessory brush, and at the same time connect the control valve 3 to the accessory brush.

[0122] In an alternative embodiment of this example, if the control valve has a two-way passage control function, that is, the control valve itself does not have a water locking function and cannot close the passage from the heating device to the control valve by controlling the control valve. At this time, a one-way control valve can be added between the control valve and the heating device to close the passage from the heating device to the control valve through the one-way control valve.

[0123] Figure 11 shows a schematic structural diagram of another cleaning device provided by an embodiment of this specification. As Figure 11 shown, the cleaning device includes a main body and an accessory brush. The main body is configured with a clean water bucket 1, a pumping motor 2, a control valve 3, a heating device 4, a multi-way joint 7, and a one-way control valve 8. The accessory brush is configured with a water spraying member 5 and a steam port 6. The clean water bucket 1, the pumping motor 2, the control valve 3, the one-way control valve 8, the heating device 4, the multi-way joint 7, and the accessory brush (the water spraying member 5 and the steam port 6) are sequentially connected through pipelines, and the control valve 3 is also connected to the accessory brush through the multi-way joint 7.

[0124] For the cleaning device provided by the embodiment of this specification, when the high-temperature mode is triggered, the pumping motor can be controlled to reverse, so as to reversely recover the residual water in the pipeline after the control valve, avoiding the waste of the residual water in the pipeline, increasing the usage time of the cleaning device, and avoiding the accessory brush of the cleaning device from being in a dripping state, greatly improving the user experience, and avoiding the residual water from dripping and scalding the user. Moreover, by reversing the pumping motor and the control valve to realize the return of the residual water in the pipeline, the original pipeline structure of the cleaning device is utilized, without adding a new recovery circuit, reducing the cost, and improving the production and development efficiency of the cleaning device.

[0125] The above is a schematic solution of a cleaning device of this example. It should be noted that the technical solution of this cleaning device and the technical solution of the method for recovering the residual water in the pipeline of the above cleaning device belong to the same concept. For the details not described in the technical solution of the cleaning device, reference can be made to the description of the technical solution of the method for recovering the residual water in the pipeline of the above cleaning device.

[0126] Corresponding to the above method embodiment, this specification also provides an embodiment of a control unit for recovering the residual water in the pipeline of a cleaning device, Figure 12The figure shows a schematic structural diagram of a pipeline residual water recovery control unit of a cleaning device provided by an embodiment of this specification. The cleaning device is configured with a clean water bucket, a pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is also connected to the accessory brush; as Figure 12 shown, the pipeline residual water recovery control unit includes:

[0127] A determination module 1202, configured to determine whether it is detected that the high-temperature mode of the cleaning device is triggered;

[0128] A control module 1204, configured to, when the high-temperature mode is triggered, according to the control strategy corresponding to the triggered high-temperature mode, control the pumping motor to reverse and recover the residual water in the pipeline after the control valve, where the reverse rotation of the pumping motor means to reversely pump the water in the pipeline after the control valve.

[0129] In an optional implementation manner of this embodiment, the high-temperature mode includes a steam mode and a hot water mode; the control module 1204 is further configured to:

[0130] When the high-temperature mode is the steam mode, control the pumping motor to reverse and recover the residual water in the pipeline after the control valve, and start the high-temperature mode after the residual water recovery is completed;

[0131] When the high-temperature mode is the hot water mode, start the high-temperature mode, and control the pumping motor to reverse and recover the residual water in the pipeline after the control valve after the high-temperature mode ends.

[0132] In an optional implementation manner of this embodiment, the control module 1204 is further configured to:

[0133] Control the pumping motor to reverse and close the passage flowing from the heating device to the control valve, and recover the residual water in the pipeline after the control valve.

[0134] In an optional implementation manner of this embodiment, the cleaning device is further configured with a multi-way joint, and the multi-way joint is respectively connected to the control valve, the heating device, and the accessory brush; the control module 1204 is further configured to:

[0135] Open the passage between the control valve and the multi-way joint, and recover the residual water in the pipeline after the control valve to the clean water bucket.

[0136] In an optional implementation manner of this embodiment, the control module 1204 is further configured to:

[0137] Close the passage between the control valve and the multi-way joint, and recover the residual water in the pipeline after the control valve to the heating device.

[0138] In an alternative embodiment of the present embodiment, the control module 1204 is further configured to:

[0139] When the control valve has a three-way passage control function, close the passage from the heating device to the control valve;

[0140] When the control valve has a two-way passage control function, a one-way control valve is provided between the control valve and the heating device, and the passage from the heating device to the control valve is closed through the one-way control valve.

[0141] In an alternative embodiment of the present embodiment, the control module 1204 is further configured to:

[0142] Determine whether the recycling completion condition is met;

[0143] If so, control the pumping motor to rotate forward, pump the water in the clean water bucket to the heating device along the control valve, and control the heating device to start working to prepare steam, wherein the steam is delivered to the accessory brush and ejected through the accessory brush.

[0144] In an alternative embodiment of the present embodiment, the control module 1204 is further configured to:

[0145] Determine the recycling duration of the residual water;

[0146] Judge whether the recycling duration reaches the recycling duration threshold;

[0147] If so, determine that the recycling completion condition is met.

[0148] In an alternative embodiment of the present embodiment, the control module 1204 is further configured to:

[0149] Measure the recycling duration threshold using the same cleaning equipment.

[0150] In an alternative embodiment of the present embodiment, a sensor is arranged between the clean water bucket and the pumping motor; the control module 1204 is further configured to:

[0151] Monitor whether water flows back to the clean water bucket through the pumping motor via the sensor;

[0152] If not, determine that the recycling completion condition is met.

[0153] In an alternative embodiment of the present embodiment, the determination module 1202 is further configured to:

[0154] When receiving a mode switching instruction, if the target mode to be switched to is the high-temperature mode, determine that the high-temperature mode of the cleaning equipment is triggered; or,

[0155] When a high-temperature mode activation instruction is received after the cleaning device is powered on, it is determined that the high-temperature mode of the cleaning device is triggered.

[0156] The pipeline residual water recovery control unit of the cleaning device provided by the embodiments of this specification, when the high-temperature mode is triggered, can control the reverse rotation of the pumping motor according to the control strategy corresponding to the triggered high-temperature mode, and reversely recover the residual water in the pipeline after the control valve, avoiding the waste of residual water in the pipeline, increasing the usage duration of the cleaning device, and preventing the accessory brush of the cleaning device from being in a dripping state, greatly improving the user experience and preventing the residual water from dripping and scalding the user. Moreover, by reversing the pumping motor and using the control valve to achieve the return of the residual water in the pipeline, the original pipeline structure of the cleaning device is utilized, eliminating the need to add a new recovery circuit, reducing costs, and improving the production and development efficiency of the cleaning device.

[0157] The above is a schematic solution of the pipeline residual water recovery control unit of a cleaning device in this embodiment. It should be noted that the technical solution of the pipeline residual water recovery control unit of this cleaning device and the technical solution of the above-mentioned pipeline residual water recovery control method of the cleaning device belong to the same concept. For the details not described in detail in the technical solution of the pipeline residual water recovery control unit of the cleaning device, reference can be made to the description of the technical solution of the above-mentioned pipeline residual water recovery control method of the cleaning device.

[0158] Corresponding to the above method embodiment, this specification also provides an embodiment of the system structure of a cleaning device. Figure 13 It shows a schematic diagram of the system architecture of a cleaning device provided by an embodiment of this specification. As Figure 13 shown, the cleaning device is configured with a clean water bucket 1302, a pumping motor 1304, a control valve 1306, a heating device 1308, and an accessory brush 1310. The clean water bucket 1302, the pumping motor 1304, the control valve 1306, the heating device 1308, and the accessory brush 1310 are sequentially connected through pipelines, and the control valve 1306 is also connected to the accessory brush 1310;

[0159] Moreover, the cleaning device is also configured with a memory 1312 and a processor 1314;

[0160] The memory 1312 is used to store computer-executable instructions, and the processor 1314 is used to execute the computer-executable instructions to implement the steps of the above-mentioned pipeline residual water recovery method of the cleaning device.

[0161] In addition, as Figure 13As shown, the cleaning device is also configured with a multi-way joint 1316, which is respectively connected to a control valve 1306, a heating device 1308, and an accessory brush 1310, so as to connect the heating device 1308 to the accessory brush 1310, and at the same time connect the control valve 1306 to the accessory brush 1310.

[0162] The above is a schematic solution of the system architecture of a cleaning device according to this embodiment. It should be noted that the technical solution of the system architecture of the cleaning device and the technical solution of the method for recovering residual water in the pipeline of the above-mentioned cleaning device belong to the same concept. For the details not described in detail in the technical solution of the system architecture of the cleaning device, reference can be made to the description of the technical solution of the method for recovering residual water in the pipeline of the above-mentioned cleaning device.

[0163] It should be noted that for the foregoing method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of this specification are not limited by the described action sequence, because according to the embodiments of this specification, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the embodiments of this specification.

[0164] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0165] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The alternative embodiments do not elaborate on all the details, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of the embodiments of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the embodiments of this specification, so that those skilled in the art can understand and utilize this specification well. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. A method for recovering residual water in the pipeline of a cleaning device, characterized in that, the cleaning device is configured with a clean water bucket, a pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected through pipelines, and the control valve is also connected to the accessory brush; the method for recovering residual water in the pipeline includes: determining whether it is detected that the high-temperature mode of the cleaning device is triggered; when the high-temperature mode is triggered, according to the control strategy corresponding to the triggered high-temperature mode, controlling the pumping motor to reverse to recover the residual water in the pipeline after the control valve, where the reverse rotation of the pumping motor means reverse pumping the water in the pipeline after the control valve.

2. The method for recovering residual water in the pipeline of a cleaning device according to claim 1, characterized in that, the high-temperature mode includes a steam mode and / or a hot water mode; the controlling the pumping motor to reverse to recover the residual water in the pipeline after the control valve according to the control strategy corresponding to the triggered high-temperature mode includes: when the high-temperature mode is the steam mode, controlling the pumping motor to reverse to recover the residual water in the pipeline after the control valve, and starting the high-temperature mode after the residual water recovery is completed; when the high-temperature mode is the hot water mode, starting the high-temperature mode, and controlling the pumping motor to reverse to recover the residual water in the pipeline after the control valve after the high-temperature mode ends.

3. The method for recovering residual water in the pipeline of a cleaning device according to claim 1 or 2, characterized in that, the controlling the pumping motor to reverse to recover the residual water in the pipeline after the control valve includes: controlling the pumping motor to reverse and closing the passage from the heating device to the control valve to recover the residual water in the pipeline after the control valve.

4. The method for recovering residual water in the pipeline of a cleaning device according to claim 3, characterized in that, the cleaning device is further configured with a multi-way joint, and the multi-way joint is respectively connected to the control valve, the heating device, and the accessory brush; the recovering the residual water in the pipeline after the control valve includes: opening the passage between the control valve and the multi-way joint to recover the residual water in the pipeline after the control valve to the clean water bucket.

5. The method for recovering residual water in the pipeline of a cleaning device according to claim 3, characterized in that, the recovering the residual water in the pipeline after the control valve includes: closing the passage between the control valve and the multi-way joint to recover the residual water in the pipeline after the control valve to the heating device.

6. The method for recovering residual water in the pipeline of a cleaning device according to claim 3, characterized in that, the closing the passage from the heating device to the control valve includes: when the control valve has a three-way passage control function, closing the passage from the heating device to the control valve; When the control valve has a two-way passage control function, a one-way control valve is provided between the control valve and the heating device, and the passage for the heating device to flow to the control valve is closed through the one-way control valve.

7. The method for recovering residual water in the pipeline of the cleaning device according to claim 2, wherein, starting the high-temperature mode after the completion of the residual water recovery includes: determining whether the recovery completion condition is satisfied; if so, controlling the water pumping motor to rotate forward, pumping the water in the clean water bucket along the control valve to the heating device, and controlling the heating device to start working to prepare steam, wherein the steam is delivered to the accessory brush and ejected through the accessory brush.

8. The method for recovering residual water in the pipeline of the cleaning device according to claim 7, wherein, the determining whether the recovery completion condition is satisfied includes: determining the recovery duration of the residual water; judging whether the recovery duration reaches the recovery duration threshold; if so, determining that the recovery completion condition is satisfied.

9. The method for recovering residual water in the pipeline of the cleaning device according to claim 8, wherein, before judging whether the recovery duration reaches the recovery duration threshold, it further includes: measuring the recovery duration threshold by using the same type of cleaning device.

10. The method for recovering residual water in the pipeline of the cleaning device according to claim 7, wherein, a sensor is arranged between the clean water bucket and the water pumping motor; the determining whether the recovery completion condition is satisfied includes: monitoring whether water flows back to the clean water bucket through the water pumping motor by means of the sensor; if not, determining that the recovery completion condition is satisfied.

11. The method for recovering residual water in the pipeline of the cleaning device according to claim 1 or 2, wherein, the determining whether the high-temperature mode of the cleaning device is triggered includes: when receiving a mode switching instruction, if the target mode to be switched is the high-temperature mode, determining that the high-temperature mode of the cleaning device is triggered; or, when receiving an opening instruction for the high-temperature mode after the cleaning device is powered on, determining that the high-temperature mode of the cleaning device is triggered.

12. A method for recovering residual water in the pipeline of a cleaning device, wherein, the cleaning device is configured with a clean water bucket, a conveying motor, a control valve, a heating device and a hand-held accessory brush, and the clean water bucket, the conveying motor, the control valve, the heating device and the hand-held accessory brush are sequentially connected through pipelines, and the control valve is further connected to the hand-held accessory brush; the method for recovering residual water in the pipeline includes: controlling the conveying motor to rotate reversely to recover the residual water in the pipeline after the control valve, wherein the reverse rotation of the conveying motor means reverse pumping of the water in the pipeline after the control valve.

13. A cleaning device, wherein, the cleaning device is configured with a clean water bucket, a water pumping motor, a control valve, a heating device, an accessory brush, and the clean water bucket, the water pumping motor, the control valve, the heating device and the accessory brush are sequentially connected through pipelines, and the control valve is further connected to the accessory brush; The pumping motor rotates forward, and the water in the clean water bucket is conveyed to the accessory brush along the control valve to realize the water spraying function; or, The pumping motor rotates reversely to recover the residual water in the pipeline after the control valve, realizing the function of residual water recovery; or, The pumping motor rotates forward, and the water in the clean water bucket is pumped to the heating device along the control valve, and the heating device is controlled to start working to prepare steam or hot water, wherein the steam or hot water is conveyed to the accessory brush and ejected through the accessory brush to realize the steam or hot water function.

14. A pipeline residual water recovery control unit of a cleaning device, characterized in that, The cleaning device is configured with a clean water bucket, a pumping motor, a control valve, a heating device, and an accessory brush. The clean water bucket, the pumping motor, the control valve, the heating device, and the accessory brush are sequentially connected by pipelines, and the control valve is also connected to the accessory brush; The pipeline residual water recovery control unit includes: A determination module configured to determine whether it is detected that the high-temperature mode of the cleaning device is triggered; A control module configured to, when the high-temperature mode is triggered, control the pumping motor to rotate reversely to recover the residual water in the pipeline after the control valve according to the control strategy corresponding to the triggered high-temperature mode, wherein the reverse rotation of the pumping motor means to reversely draw back the water in the pipeline after the control valve.

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