CN112603210A - Floor washing machine water level alarm control method and system - Google Patents
Floor washing machine water level alarm control method and system Download PDFInfo
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- CN112603210A CN112603210A CN202011415285.7A CN202011415285A CN112603210A CN 112603210 A CN112603210 A CN 112603210A CN 202011415285 A CN202011415285 A CN 202011415285A CN 112603210 A CN112603210 A CN 112603210A
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- clear water
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
- A47L11/292—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
- A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4041—Roll shaped surface treating tools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4088—Supply pumps; Spraying devices; Supply conduits
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention relates to a water level alarm control method of a scrubber, which comprises a detection component which is arranged on a water outlet pipeline of a clear water tank and is used for detecting whether clear water exists in the water outlet pipeline or not; the detection part transmits the detected induction signal to the main control board; the main control board receives the detected induction signal, judges whether clear water exists or not, and gives an alarm signal if the result of continuous judgment in the preset time is that no clear water exists. The preset time is 3 to 10 seconds. Install the buffering box on the outlet pipeline of clear water tank, the detection part is two and stretches into the inside metal terminal of buffering box, and two metal terminals carry out electric connection with the main control board simultaneously. This technical scheme beneficial effect lies in, through the setting of buffering box and detection component, whether there is clear water in the detection buffering box can judge whether the clear water in the clear water tank is used up, and then gives signal control floor cleaning machine and sends and remind or shut down, reminds the user in time to add water.
Description
Technical Field
The invention belongs to the technical field of floor washers, and relates to a floor washer water level alarm control method and system.
Background
The floor washing machine is a common cleaning product in life, is mainly used for replacing a traditional dust collector, a broom and a mop, and realizes the functions of washing the floor and absorbing dust by converting electric energy into mechanical energy. The working principle of the cleaning device is that a cleaning roller brush driven by a power component to rotate is arranged, a cleaning layer made of flexible materials is arranged on the periphery of the roller brush, the cleaning layer is wetted by cotton cloth, sponge, engineering plastics or fibers and the like, the ground to be cleaned is washed by the rotation of the roller brush, the ground is cleaned, and sewage or garbage is recovered.
In order to wet the cleaning layer, the floor washing machine is provided with a water tank, the water tank comprises a clean water tank and a sewage tank, and water in the clean water tank is used for wetting the cleaning layer and washing the ground; the sewage tank is used for recovering sewage or garbage generated after cleaning, and the recovered sewage or garbage is sucked into the sewage tank by utilizing negative pressure generated by the suction device. The clear water liquid level to in the clear water case of current floor scrubber is not monitored, needs the user to observe with the eye constantly, often can lead to not having the clear water just can discover, and user experience is poor, also does not have the control to the sewage case, and the sewage case has often been filled and has overflowed the ground, makes dirty ground and floor scrubber again.
Disclosure of Invention
The invention aims to provide a water level alarm control method of a floor washing machine, which can detect the water level in a clean water tank in time and alarm and remind in time when water is deficient.
The invention is realized by the following technical scheme.
The technical scheme of the invention is a water level alarm control method of a scrubber, which comprises the following steps:
a detection component for detecting whether the water outlet pipeline has clear water is arranged on the water outlet pipeline of the clear water tank;
the detection part transmits the detected induction signal to the main control board;
the main control board receives the detected induction signal, judges whether clear water exists or not, and gives an alarm signal if the result of continuous judgment in the preset time is that no clear water exists.
This technical scheme beneficial effect lies in, through the setting of buffering box and detection component, whether there is clear water in the detection buffering box can judge whether the clear water in the clear water tank is used up, and then gives signal control floor cleaning machine and sends and remind or shut down, reminds the user in time to add water.
In one example of this solution, the preset time is 3 to 10 seconds. The problem that clear water cannot be detected due to the fact that the floor washing machine shakes can be solved through the preset time, the preset time is used as a monitoring period, for example, the time of 5 seconds, only if no clear water is detected within the time of 5 seconds, the fact that no clear water exists is judged, and the clear water tank is empty is solved.
In an example of the technical scheme, a buffer box is installed on a water outlet pipeline of the clear water tank, the detection parts are two metal terminals extending into the buffer box, and the two metal terminals are electrically connected with the main control board simultaneously.
In an example of the technical scheme, when a circuit between two metal terminals is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that clear water exists in the buffer box; when the circuit between the two metal terminals is disconnected, the main control board receives the sensing signal of the disconnection of the electrode terminal and judges that no clear water exists in the buffer box.
In an example of the technical scheme, after the alarm signal is given, the main control panel controls the floor washing machine to stop working and enter a standby state, and meanwhile, an alarm sound is generated or prompt information is generated on a display screen.
In one example of this technical solution, the method further includes:
a pair of metal pole pieces are arranged above the inside of the sewage tank, and the metal pole pieces are electrically connected with the main control board;
when the circuit between the two metal pole pieces is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that the sewage in the sewage tank is full;
when the circuit between the two metal terminals is disconnected, the main control board receives an induction signal of the disconnection of the electrode terminals and judges that the sewage in the sewage tank is not full.
In an example of this technical scheme, the inside of sewage case is equipped with the dirty pipe of advancing with the bottom of sewage case dirty mouthful intercommunication, and the upper end of advancing dirty pipe is higher than the lower extreme of metal pole piece, makes sewage can pass through metal pole piece before overflowing and detects.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and the drawings in the following description are only directed to some embodiments, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 shows a schematic structural diagram of a scrubber in a first embodiment of the present application.
Fig. 2 shows an exploded schematic view of a floor washing machine according to a first embodiment of the present application.
Fig. 3 shows an exploded schematic view of a floor washing machine according to a first embodiment of the present application.
Fig. 4 is an enlarged schematic view of a portion a of fig. 3.
Fig. 5 is a schematic exploded view of a buffer box according to a first embodiment of the present application.
Fig. 6 is a schematic exploded view of a waste water tank according to a first embodiment of the present application.
Fig. 7 is an exploded schematic diagram of a base host in the first embodiment of the present application.
Fig. 8 is a schematic structural diagram of a roller brush and a nozzle in the first embodiment of the present application.
Fig. 9 shows a flowchart of an alarm control method in the second embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In addition, technical solutions between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the scope of the disclosure of the present invention.
In the following description, suffixes such as "module", "part", "assembly", or "unit" are used only for convenience of description of the present invention, and have no specific meaning by themselves, and thus may be used mixedly.
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
Example one
As shown in fig. 1 to 8, the present embodiment is a floor washing machine, which includes a handheld portion and a base main unit, the handheld portion includes a handle 11 for a user to hold, a housing 12 connected to the handle, and a clean water tank 13, a sewage tank 14, a main control panel 15, a fan set 16 and a battery 17 respectively mounted on the housing, and the housing includes a front shell 121 and a rear shell 122 assembled with each other.
The base host computer is including base 21 and install upper cover 22, adapter 23, water pump 24 and the roller brush mechanism on the base, and the backshell lower extreme of handheld portion is connected with the adapter of base.
The clear water tank 13 is detachably mounted on the front shell 121, a clear water tank cover 132 which can be opened conveniently for adding clear water is configured on the clear water tank 13, the clear water tank 13 is inserted in the clear water tank accommodating groove 123 of the front shell 121, meanwhile, the lower end outlet 131 of the clear water tank is connected to a clear water connector 124 of the front shell, the clear water connector 124 is connected with the upper end of the water outlet pipeline 18, the lower end of the water outlet pipeline is connected with a water pump of the base host, and the water pump pumps clear water into the clear water tank through the water outlet pipeline.
In order to prevent the water pump from idling after the clear water in the clear water tank is pumped out, for this reason, a buffer box 19 is installed on the water outlet pipeline 18 of the clear water tank, the buffer box comprises a side cover 191 which is detachably connected in a sealing manner, two metal terminals 192 are installed on the side cover, one ends of the metal terminals 192 extend into the buffer box, the other ends of the metal terminals are electrically connected with the main control 15 board, two interfaces 193 are arranged on the buffer box, and the two interfaces are connected with the water outlet pipeline 18.
When water exists in the buffer box, the two metal terminals are immersed in the clear water, the two metal terminals are conducted, a signal of water existence is generated, the signal is transmitted to the main control board, and the state is judged that the water exists in the water outlet pipeline and the clear water tank; when no water exists in the buffer box, the two metal terminals are disconnected, a signal of no water is generated, the signal is transmitted to the main control board, and the state is judged that no water exists in the water outlet pipeline and the clean water tank; and when the water is short, reminding the user of adding water. The main control board judges whether the clear water tank has water or not by detecting the on-off of a circuit between the metal terminals.
The sewage tank 14 is used for collecting sewage and is arranged on the rear shell, the sewage tank is provided with a sewage tank cover 141 matched with the sewage tank, the sewage tank cover 141 is provided with an air suction hole 142, a sealing ring 143 is arranged at the air suction hole, the inner side of the sewage tank cover is provided with a pair of metal pole pieces 144, the metal pole pieces extend into the sewage tank, and the metal pole pieces are electrically connected with a main control panel of the floor washing machine. The inside of the sewage tank 14 is provided with a sewage inlet pipe 146 communicated with a sewage inlet 145 at the bottom of the sewage tank, and the upper end of the sewage inlet pipe 146 is higher than the lower end of the metal pole piece 144.
After the sewage collected in the sewage tank reaches a certain height, namely when the sewage reaches the lower ends of the two metal pole pieces to be in contact with each other, the two metal pole pieces are conducted, a conduction signal is transmitted to the main control board, the sewage tank is judged to be full of water, the machine is shut down and reminds a user to pour the sewage in time, and the machine cannot be started before the two metal pole pieces are disconnected.
The fan unit 16 is mounted on the rear shell, the fan unit is used for providing suction force for sewage to enter the sewage tank, an inlet 161 of the fan unit is communicated with the air suction hole 142 of the sewage tank 14, and the fan unit is also electrically connected with the main control board and controlled by the main control board.
A water pump 24 for pumping clear water in a clear water tank is arranged on the base 21, the outlet end of the water pump 24 is connected to a nozzle 26, the clear water is sprayed onto the roller brush through the pressurization of the water pump 24 and can also be sprayed onto the ground for wetting, and the position and the number of the nozzles 26 can be selected and set according to actual requirements.
The roller brush mechanism mainly comprises a roller brush 251, a roller brush support 252 and a motor for driving the roller brush to rotate, the roller brush is mounted on the roller brush support to rotate, the roller brush support and the motor are mounted on a base, the motor is electrically connected with a main control board, the motor drives the roller brush to rotate through a transmission component such as a belt or a gear, the motor is not shown in the figure, and the roller brush mechanism can be described in the Chinese invention publication specification with the publication number of CN211187079U, which is not repeated herein.
The roller brush support 252 is installed on the base 21, a dirt collecting cavity 211 for collecting sewage is formed between the roller brush support and the base, the dirt collecting cavity 211 is connected with one end of the corrugated pipe 27, the corrugated pipe 27 penetrates through the adapter 23 and the other end of the corrugated pipe is connected with the rear shell 122, the corrugated pipe 27 is communicated with the dirt inlet 145 of the sewage tank 14 in a sealing mode, and under the action of suction force of the fan unit 16, sewage raised by rotation of the roller brush 251 and sewage on the ground enter the sewage tank after passing through the dirt collecting cavity and the corrugated pipe.
The base 21 is further provided with a plurality of rollers 212 and pulleys 213 for supporting the base unit and allowing the base unit to move on the ground.
Example two
In a second embodiment, a method for controlling a water level alarm of a scrubber is provided based on the structure of the scrubber in the first embodiment, which includes:
a detection component for detecting whether the water outlet pipeline has clear water is arranged on the water outlet pipeline of the clear water tank; the detection part transmits the detected induction signal to the main control board; the main control board receives the detected induction signal, judges whether clear water exists or not, and gives an alarm signal if the result of continuous judgment in the preset time is that no clear water exists.
After the alarm signal is given, the main control board controls the floor washing machine to stop working and enter a standby state, and meanwhile, an alarm sound is generated or prompt information is generated on a display screen.
The preset time is 3-10 seconds, preferably 5 seconds, the problem that no clean water can be detected due to the fact that the floor washing machine shakes can be solved through the preset time, such as the time length of 5 seconds, is taken as a monitoring period, and only if no clean water is detected within the time length of 5 seconds, it is judged that no clean water exists and the clean water tank is empty.
When the circuit between the two metal terminals is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that clear water exists in the buffer box; when the circuit between the two metal terminals is disconnected, the main control board receives the sensing signal of the disconnection of the electrode terminal and judges that no clear water exists in the buffer box.
In order to monitor the water level of the sewage tank, a pair of metal pole pieces are arranged above the inside of the sewage tank and electrically connected with the main control board; when the circuit between the two metal pole pieces is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that the sewage in the sewage tank is full; when the circuit between the two metal terminals is disconnected, the main control board receives an induction signal of the disconnection of the electrode terminals and judges that the sewage in the sewage tank is not full.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.
Claims (10)
1. A floor washing machine water level alarm control method is characterized by comprising the following steps:
a detection component for detecting whether the water outlet pipeline has clear water is arranged on the water outlet pipeline of the clear water tank;
the detection part transmits the detected induction signal to the main control board;
the main control board receives the detected induction signal, judges whether clear water exists or not, and gives an alarm signal if the result of continuous judgment in the preset time is that no clear water exists.
2. The floor washing machine water level alarm control method according to claim 1, characterized in that the preset time is 3 to 10 seconds.
3. The water level alarm control method of the floor washing machine as claimed in claim 1, wherein a buffer box is installed on the water outlet pipeline of the clean water tank, the detection part is two metal terminals extending into the buffer box, and the two metal terminals are electrically connected with the main control board at the same time.
4. The floor washing machine water level alarm control method according to claim 3,
when the circuit between the two metal terminals is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that clear water exists in the buffer box; when the circuit between the two metal terminals is disconnected, the main control board receives the sensing signal of the disconnection of the electrode terminal and judges that no clear water exists in the buffer box.
5. The water level alarm control method of the floor washing machine as claimed in claim 1, wherein after the alarm signal is given, the main control panel controls the floor washing machine to stop working and enter a standby state, and simultaneously generates an alarm sound or generates a prompt message on a display screen.
6. The floor washing machine water level alarm control method according to any one of claims 1 to 5, characterized by further comprising:
a pair of metal pole pieces are arranged above the inside of the sewage tank, and the metal pole pieces are electrically connected with the main control board;
when the circuit between the two metal pole pieces is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that the sewage in the sewage tank is full;
when the circuit between the two metal terminals is disconnected, the main control board receives an induction signal of the disconnection of the electrode terminals and judges that the sewage in the sewage tank is not full.
7. The floor washing machine water level alarm control method according to any one of claims 6,
the inside of sewage case is equipped with the dirty pipe of advancing with the bottom of sewage case dirty mouthful intercommunication, and the upper end of advancing dirty pipe is higher than the lower extreme of metal pole piece, makes sewage can detect through metal pole piece before overflowing.
8. The utility model provides a scrubber water level alarm control system which characterized in that, including:
the detection component is arranged on a water outlet pipeline of the clear water tank and used for detecting whether the water outlet pipeline has clear water or not and transmitting a detected induction signal to the main control board;
and the main control board receives the sensing signal detected by the detection part, judges whether clear water exists or not, and gives an alarm signal if the result of continuous judgment in the preset time is that no clear water exists.
9. The water level alarm control system of the floor washing machine as claimed in claim 8, wherein the buffer box is installed on the water outlet pipeline of the clean water tank, the detection part is two metal terminals extending into the buffer box, and the two metal terminals are electrically connected with the main control board at the same time.
10. The floor washing machine water level alarm control system of claim 9,
when the circuit between the two metal terminals is conducted, the main control board receives an induction signal conducted by the electrode terminal and judges that clear water exists in the buffer box; when the circuit between the two metal terminals is disconnected, the main control board receives the sensing signal of the disconnection of the electrode terminal and judges that no clear water exists in the buffer box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011415285.7A CN112603210A (en) | 2020-12-04 | 2020-12-04 | Floor washing machine water level alarm control method and system |
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| CN202011415285.7A CN112603210A (en) | 2020-12-04 | 2020-12-04 | Floor washing machine water level alarm control method and system |
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| CN112998595A (en) * | 2021-04-16 | 2021-06-22 | 深圳市杉川机器人有限公司 | Clear water tank assembly and steam engine and floor washing machine with same |
| CN113143126A (en) * | 2021-05-12 | 2021-07-23 | 深圳市朗科智能电气股份有限公司 | Water-absorbing cleaning appliance with water level detection function |
| CN113171037A (en) * | 2021-04-16 | 2021-07-27 | 深圳市杉川机器人有限公司 | Retrieve subassembly and have its scrubber |
| CN113598667A (en) * | 2021-08-09 | 2021-11-05 | 合肥酷尔环保科技有限公司 | Small-size portable scrubber |
| CN114468889A (en) * | 2021-12-24 | 2022-05-13 | 添可智能科技有限公司 | Recovery barrel state detection method, processing system and cleaning equipment |
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Application publication date: 20210406 |