Cleaning device and cleaning control method

Abstract

A cleaning device and a cleaning control method. The cleaning device comprises a cleaning unit (1), a liquid spraying unit (21), a wastewater collection unit (4), and a control unit (5). The cleaning unit (1) is provided with a spray port (11) and suction ports (12); the liquid spraying unit (21) is connected to the spray port (11), for spraying a cleaning liquid to a surface to be cleaned; the wastewater collection unit (4) is connected to the suction ports (12), for suctioning dirt or wastewater generated during cleaning; and the liquid spraying unit (21) and the wastewater collection unit (4) are both connected to the control unit (5), and the control unit (5) is used for controlling the start and stop of the liquid spraying unit (21) and the wastewater collection unit (4). The cleaning device can simultaneously handle the functions of spraying the cleaning liquid and suctioning the dirt or wastewater, thereby improving the working efficiency.

Description

Cleaning device and cleaning control method

[0001] Cross-reference to related applications

[0002] This application is based on Chinese Patent Application No. 202410934103.9, filed on July 11, 2024, entitled “A Steam Cleaning Machine”, and Chinese Patent Application No. 202520351209.6, filed on February 28, 2025, entitled “A Cleaning Head and Cleaning Device”, and Chinese Patent Application No. 202520343387.4, filed on February 28, 2025, entitled “A Cleaning Head and Cleaning Device”, and Chinese Patent Application No. 202510235989.2, filed on February 28, 2025, entitled “A Cleaning Control Method, A Cleaning Control Handle, A Cleaning Device and A Cleaning System”, and Chinese Patent Application No. 202520343366.2, filed on February 28, 2025, entitled “A Cleaning Device”, and Chinese Patent Application No. 202520828317.8, filed on April 28, 2025, entitled “A Cleaning Device”, which are all incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of cleaning, and in particular, to a cleaning device and a cleaning control method. BACKGROUND

[0004] In the related art, some cleaning devices may not be able to simultaneously handle the functions of spraying cleaning liquid and sucking dirt or sewage, resulting in low work efficiency. SUMMARY

[0005] According to various embodiments of the present application, a cleaning device and a cleaning control method are provided.

[0006] A cleaning device, comprising a cleaning unit, a liquid spraying unit, a sewage collecting unit and a control unit, the cleaning unit having a spraying port and a suction port; the liquid spraying unit is connected with the spraying port, for spraying cleaning liquid to a surface to be cleaned; the sewage collecting unit is connected with the suction port, for sucking dirt or sewage generated during cleaning; the liquid spraying unit and the sewage collecting unit are both connected with the control unit, and the control unit is used for controlling the start and stop of the liquid spraying unit and the sewage collecting unit.

[0007] In an embodiment, the cleaning device is a steam cleaner, the cleaning unit comprises a cleaning head provided with the spray port and the suction port; the steam cleaner comprises a steam generating unit connected with the control unit, the steam generating unit comprises an electric heater and the liquid spraying unit connected with each other; the electric heater is used for heating the cleaning liquid to provide steam for the liquid spraying unit; the control unit is used for controlling the start and stop of the steam generating unit.

[0008] In an embodiment, the cleaning device further comprises a secondary heating unit connected with the control unit, the control unit is capable of controlling the start and stop of the secondary heating unit.

[0009] In an embodiment, the secondary heating unit is used for providing steam, hot water or hot air for at least one of the liquid spraying unit and the spray port, or the secondary heating unit is used for heating the cleaning liquid.

[0010] In an embodiment, the secondary heating unit comprises a secondary heater, the secondary heater and the electric heater are connected in parallel or in series; or,

[0011] The secondary heating unit comprises a heat exchanger and sequentially connected water storage device, first water pump and secondary heater, the liquid outlet of the secondary heater is connected with the heat medium inlet of the heat exchanger, the heat medium outlet of the heat exchanger is connected with the liquid inlet of the water storage device, and the heat exchanger and the electric heater are connected in parallel or in series.

[0012] In an embodiment, the heat source of the secondary heating unit is a cleaning heat source, the cleaning heat source comprises solar energy or waste heat source.

[0013] In an embodiment, the cleaning device further comprises a handle and a steam generating unit; the cleaning head is connected with the steam generating unit and the sewage collecting unit through the handle respectively.

[0014] In an embodiment, the handle has a first induction contact group, the cleaning head has a second induction contact group, the first induction contact group is connected with the control unit; when the cleaning head is connected with the handle, the second induction contact group is connected with the first induction contact group, so that the first induction contact group sends an electric signal to the control unit; the control unit is used for identifying type information of the cleaning head according to the electric signal, and is used for adjusting the working mode of the cleaning device according to the type information, so that the steam generating unit and the sewage collecting unit are in working state in corresponding working mode.

[0015] In an embodiment, the cleaning device further comprises a self-cleaning unit, the self-cleaning unit comprising a cleaning head; the self-cleaning unit is connected to the control unit, the self-cleaning unit is used to clean the cleaning head, and the control unit is used to control the start and stop of the self-cleaning unit. The cleaning device comprises a steam cleaner.

[0016] In an embodiment, the self-cleaning unit comprises a self-cleaning box and an inductive switch; the inductive switch is arranged in the self-cleaning box, the inductive switch is connected to the control unit; the cleaning head can be inserted into the self-cleaning box to trigger the inductive switch; the control unit is used to control the start and stop of the liquid spraying unit according to the state of the inductive switch.

[0017] In an embodiment, the control unit comprises a controller and a control component connected to each other; the control component is used to adjust the working mode of the cleaning device, and the working mode of the cleaning device comprises a cleaning mode and a drying mode; in the cleaning mode, the liquid spraying unit and the sewage collection unit work; in the drying mode, the liquid spraying unit does not work.

[0018] In an embodiment, the control component comprises a first control member and a second control member; the first control member is used to control the cleaning device to enter or exit the cleaning mode, and the second control member is used to control the cleaning device to enter or exit the drying mode.

[0019] In an embodiment, the cleaning device comprises a main machine, the main machine is provided with the liquid spraying unit (also referred to as a cleaning liquid supply unit) and the sewage collection unit; the main machine is provided with a self-cleaning unit;

[0020] A cleaning unit is arranged in the cleaning device, the cleaning unit is provided with a first cleaning channel and a first sewage channel arranged at intervals, the first cleaning channel is connected to the liquid spraying unit to spray cleaning liquid through the spray port of the first cleaning channel; the first sewage channel is connected to the sewage collection unit to suck sewage or sewage through the suction port of the first sewage channel;

[0021] In a first state, the cleaning unit is detachably connected to the self-cleaning unit, and the spray port of the first cleaning channel and the suction port of the first sewage channel are located in the self-cleaning unit, so that the cleaning device can enter a self-cleaning mode.

[0022] In an embodiment, the cleaning device further comprises a storage tube, the storage tube is used to accommodate at least one of the first cleaning channel, the first sewage channel and the control wire harness of the cleaning device.

[0023] In an embodiment, the cleaning unit comprises a handle and at least one cleaning head detachably connected to the handle, the cleaning head being provided with the spaced-apart spray port and suction port.

[0024] In an embodiment, one of the handle and the self-cleaning unit is provided with a first acquisition part, and the other is provided with a first marking part, in response to the connection of the handle and the self-cleaning unit, the first acquisition part can identify the first marking part, and the cleaning device enters a self-cleaning mode or a standby self-cleaning mode.

[0025] In an embodiment, the handle is provided with a first acquisition part, and the cleaning head is provided with a second marking part; in response to the connection of the handle and the cleaning head, the first acquisition part can identify the second marking part, and the cleaning device enters a cleaning mode matched with the cleaning head.

[0026] In an embodiment, the cleaning head is provided with a plurality of suction ports, and the plurality of suction ports are circumferentially arranged outside the spray port.

[0027] Or, the cleaning head is provided with a plurality of spray ports, and the plurality of spray ports are circumferentially arranged outside the suction port.

[0028] In an embodiment, the cleaning unit comprises a cleaning head, the cleaning head comprising a shell and a cleaning assembly, the cleaning assembly being used for cleaning an object to be cleaned; the shell is provided with the spray port and the suction port, and at least part of the cleaning assembly is accommodated in the suction port.

[0029] In an embodiment, the cleaning unit comprises a cleaning head, the cleaning head comprising a shell and a cleaning assembly, the shell being provided with the spray port and the suction port, and at least part of the cleaning assembly is covered by the cleaning liquid sprayed by the spray port.

[0030] In an embodiment, the cleaning assembly comprises a positioning part and a cleaning part.

[0031] At least part of the positioning part and the cleaning part is accommodated in the suction port; or at least part of the positioning part forms the suction port, and at least part of the cleaning part is accommodated in the suction port.

[0032] In an embodiment, one of the positioning part and the cleaning part is provided with a fixing groove, and the other is provided with a mounting convex rib, and the fixing groove and the mounting convex rib are clamped.

[0033] In an embodiment, the cleaning unit comprises a cleaning head, the cleaning head comprises: a spray head body provided with a first matching part and a first knob part; a dust cover provided with a second matching part; a handle provided with a first clamping part; wherein, when the first knob part is in a locked position, the first knob part is connected to the second matching part, and the first clamping part can be connected to the first matching part and the second matching part in sequence to connect the spray head body and the dust cover to the handle; the first knob part is configured to be operatively actuated to move from the locked position to a first unlocked position; the first knob part in the first unlocked position can press against the first clamping part to disconnect the first clamping part from the second matching part, and the first clamping part remains connected to the first matching part.

[0034] In an embodiment, the spray head body has an opening, and an air inlet is formed on the edge of the outer circumferential surface of the spray head body near the opening.

[0035] In an embodiment, the spray head body has an opening, and the bristles arranged at the opening protrude out of the opening in a direction away from the handle, and the protruding length of the bristles is 1-3 mm.

[0036] A cleaning control method of a cleaning device as described above, the cleaning unit comprises a handle and one or more cleaning heads, the control unit is detachably connected to any of the cleaning heads through the handle; the method comprises:

[0037] In response to the connection with any of the cleaning heads, the type information of the connected cleaning head is acquired;

[0038] In response to a mode selection instruction of a cleaning mode, a target mode is determined;

[0039] According to the type information of the cleaning head and the target mode, a cleaning parameter is determined, and a cleaning operation is performed.

[0040] In an embodiment, each of the cleaning heads has a corresponding type identifier;

[0041] In response to the connection with any of the cleaning heads, the type information of the connected cleaning head is acquired, comprising:

[0042] In response to the connection with any of the cleaning heads, the type identifier of the connected cleaning head is acquired;

[0043] Based on pre-stored configuration information, the type information corresponding to the type identifier is determined, and the configuration information includes a mapping relationship between the type identifier and the type information of the cleaning head.

[0044] In an embodiment, each of the cleaning heads has a corresponding type identifier, in which type information and cleaning parameters corresponding to different modes thereof are set;

[0045] The method further comprises:

[0046] In response to connection with any of the cleaning heads, a communication connection is established with any of the cleaning heads, type information in the type identifier of the connected cleaning head and cleaning parameters corresponding to different modes thereof are acquired;

[0047] In response to a mode selection instruction for a cleaning mode, a target mode and corresponding cleaning parameters are determined, and a cleaning operation is performed;

[0048] The communication connection mode includes at least one of radio frequency communication, optical identification communication, and serial communication.

[0049] A control method of a cleaning device as described above, the cleaning device comprising a steam generation unit connected to the control unit, the steam generation unit comprising a liquid spraying unit and a heater. The control method of the cleaning device comprises:

[0050] In response to the identified cleaning scene, target flow and target power corresponding to the cleaning scene are acquired;

[0051] According to the target flow, cleaning liquid is injected into the heater of the steam generation unit, the heater is controlled to heat the injected cleaning liquid at the target power, and cleaning steam of the target cleaning scene is output through the liquid spraying unit of the steam generation unit.

[0052] In an embodiment, the method further comprises:

[0053] In response to an identification instruction for the object to be cleaned, the category of the object to be cleaned is identified; the corresponding cleaning scene is determined according to the category of the object to be cleaned; or,

[0054] In response to an identification instruction for the object to be cleaned, the category of the object to be cleaned is carried in the identification instruction; the corresponding cleaning scene is determined according to the category of the object to be cleaned.

[0055] In an embodiment, the cleaning unit comprises at least one cleaning head, each of the cleaning heads has a corresponding cleaning scene identifier or type identifier; the method further comprises:

[0056] In response to connection with any of the cleaning heads, the cleaning scene identifier or type identifier of the connected cleaning head is acquired;

[0057] The corresponding cleaning scene is determined according to the cleaning scene identifier or type identifier of the connected cleaning head.

[0058] In an embodiment, the corresponding flow and power are set in the cleaning scene identification or type identification; and the target flow and target power corresponding to the cleaning scene are obtained by:

[0059] The flow and power in the cleaning scene identification or type identification of the connected cleaning head are obtained as the target flow and target power corresponding to the cleaning scene.

[0060] In an embodiment, the target flow and target power corresponding to the cleaning scene are obtained by:

[0061] The target flow and target power corresponding to the cleaning scene are determined based on pre-stored configuration information, wherein the configuration information includes a mapping relationship between at least one cleaning scene and flow and power.

[0062] An embodiment of the present application provides a steam cleaning machine, which comprises a cleaning head, a control unit, and a steam generation unit, a secondary heating unit, and a sewage collection unit connected to the control unit respectively;

[0063] The cleaning head has a spray port and a suction port; the steam generation unit comprises a liquid spraying unit and an electric heater connected to each other; the secondary heating unit and the electric heater are used for heating cleaning liquid to provide steam for the liquid spraying unit; a heat source of the secondary heating unit is a cleaning heat source; the liquid spraying unit is connected to the spray port and used for spraying steam to a surface to be cleaned; and the sewage collection unit is connected to the suction port and used for sucking sewage generated in cleaning;

[0064] The control unit is used for controlling start and stop of the steam generation unit, the secondary heating unit, and the sewage collection unit.

[0065] In an embodiment, the steam generation unit further comprises a temperature sensor;

[0066] The temperature sensor is connected to the control unit, and is used for measuring temperature information of steam sprayed by the liquid spraying unit and transmitting the measured temperature information to the control unit; and the control unit is used for controlling heating power of the electric heater and / or the secondary heating unit according to the type information and the temperature information, so as to control the temperature of the steam sprayed by the liquid spraying unit.

[0067] In one of the embodiments, the cleaning unit comprises a handle, and the first cleaning channel and the first sewage channel are arranged in the handle at intervals; the first cleaning channel is connected to the cleaning liquid supply unit, so that cleaning liquid is sprayed out through an outlet of the first cleaning channel; and the first sewage channel is connected to the sewage collection unit, so that sewage is sucked in through an inlet of the first sewage channel.

[0068] The self-cleaning unit is a first slot formed in the main body; in the first state, the handle is detachably connected to the first slot, and the outlet of the first cleaning channel and the inlet of the first dirt channel are both located in the first slot, so that the cleaning device can enter a self-cleaning mode.

[0069] In one of the embodiments, a first gap is formed between the outer circumferential surface of the handle and the side wall of the first slot. The first gap is greater than or equal to 0.2 mm.

[0070] In one of the embodiments, one of the handle and the first slot is provided with a first marking part, and the other is provided with a first collection part.

[0071] In response to the connection of the handle and the first slot, the first collection part can identify the first marking part, and the cleaning device enters a self-cleaning mode or a standby self-cleaning mode.

[0072] In one of the embodiments, one of the first marking part and the first collection part is configured as a male connector, and the other is configured as a female connector connected to the male connector, or

[0073] The first marking part includes a two-dimensional code, NFC, RFID, or Bluetooth, and the first collection part includes a reader or a receiver.

[0074] In one of the embodiments, at least one of the main body and the handle is provided with an operation member, and in the first state, in response to the selection operation of the operation member, the cleaning device is in the self-cleaning mode.

[0075] In one of the embodiments, the main body is provided with a fixing seat, and the fixing seat is configured with the first slot.

[0076] In one of the embodiments, the fixing seat is configured with a stop plate extending along the direction of gravity, and a second gap is formed between the stop plate and the side surface of the main body in the horizontal direction, the second gap forms a receiving groove, and the receiving tube can be received in the receiving groove.

[0077] In one of the embodiments, the cleaning device includes at least one cleaning head detachably connected to the handle; the cleaning head is provided with spaced-apart spray ports and negative pressure ports; the spray ports are in communication with the outlet of the first cleaning channel, and the negative pressure ports are in communication with the inlet of the first dirt channel.

[0078] In one of the embodiments, the positioning part includes a first positioning side plate; the first positioning side plate forms a first side surface of the negative pressure port.

[0079] In an embodiment, the positioning part comprises a second positioning side plate; the second positioning side plate forms a second side of the negative pressure port.

[0080] In an embodiment, the positioning part comprises a fixing member, the cleaning part comprises a mounting end and a cleaning end, the fixing member is arranged in the negative pressure port, the mounting end is detachably connected with the fixing member, and the cleaning end is used for cleaning the object to be cleaned. The positioning part is fixedly connected with the shell or integrally formed. The positioning part, such as a positioning side plate, a positioning clamping plate, a positioning groove, a positioning convex point, a positioning hole, etc., is arranged in the negative pressure port, and the mounting end of the cleaning part is fixedly connected with the positioning part, so that at least part of the cleaning assembly is arranged in the negative pressure port.

[0081] In an embodiment, the cleaning head comprises two or more cleaning assemblies or the cleaning assembly comprises two or more cleaning parts; the two or more cleaning assemblies are arranged side by side or at a preset angle, or the two or more cleaning parts are arranged side by side or at a preset angle. The side-by-side arrangement means that the center lines of the cleaning assemblies are respectively parallel to the center line of the negative pressure port, and the preset angle arrangement means that the center lines of the cleaning assemblies intersect after the section is extended.

[0082] In an embodiment, the cleaning assembly comprises a first cleaning part and a second cleaning part, part of the first cleaning part is covered by the cleaning liquid sprayed by the nozzle, and the first cleaning part and the second cleaning part are arranged on two sides of the negative pressure port. The relative arrangement of the first cleaning assembly and the second cleaning assembly on the two sides of the negative pressure port comprises that the first cleaning part and the second cleaning part are arranged on the inner sides of the negative pressure port respectively; or the first cleaning part and the second cleaning part are arranged on the outer sides of the negative pressure port respectively; or the first cleaning part is arranged on the inner side of the negative pressure port, and the second cleaning part is arranged on the outer side of the negative pressure port; or the first cleaning part is arranged on the outer side of the negative pressure port, and the second cleaning part is arranged on the inner side of the negative pressure port.

[0083] In an embodiment, the positioning part of the cleaning assembly is provided with a fixing groove and / or a fixing convex rib, the mounting end of the cleaning part of the cleaning assembly is provided with a mounting convex rib and / or a mounting groove, the fixing groove is clamped with the mounting convex rib, and the fixing convex rib is clamped with the mounting groove; the positioning part can be selected as the side plate of the negative pressure port, and a plurality of fixing grooves are arranged on the side plate as fixing members; the side plate of the negative pressure port can be integrally formed with the shell.

[0084] In an embodiment, the convex rib height of the mounting convex rib is greater than the groove edge height of the fixing groove, or the convex rib height of the fixing convex rib is greater than the groove edge height of the mounting groove; when the cleaning assembly comprises two or more cleaning parts, the upper surface of the convex rib supports and abuts against the inner surface of the other cleaning part under high negative pressure.

[0085] In an embodiment, the mounting protrusion is provided with a T-shaped protrusion, or the fixing protrusion is provided with a T-shaped protrusion. The two sides of the T-shaped protrusion are clamped on the groove edge upper surface, and the T-shaped protrusion upper surface is in abutment with the inner surface of the second cleaning part under high negative pressure.

[0086] In an embodiment, the inner surface of the first cleaning part and / or the inner surface of the second cleaning part is provided with a support rib, or a support point, or a support block, etc. The above-mentioned inner surface refers to the two surfaces of the first cleaning part and the second cleaning part that are close to each other under negative pressure.

[0087] In an embodiment, the cleaning end of the cleaning assembly exceeds the negative pressure port by at least 0.5mm-20mm.

[0088] In an embodiment, the cleaning part of the cleaning assembly includes at least one of a scraper, a scraper plate, a roller brush, a brush, a scouring pad, and a cleaning ball.

[0089] In an embodiment, the nozzle is provided adjacent to the negative pressure port, and the nozzle is provided with at least one cleaning liquid injection hole, and the injection direction of the cleaning liquid injection hole is obliquely arranged towards the cleaning assembly.

[0090] In an embodiment, the nozzle includes at least one cleaning liquid injection pipe, and the cleaning liquid injection pipe is provided with a plurality of cleaning liquid injection holes.

[0091] In an embodiment, the cleaning liquid includes at least one of water vapor, water, and a cleaning agent-containing solution.

[0092] A cleaning device includes the cleaning head of any one of the above-mentioned embodiments and a main machine, and the cleaning head is detachably connected to the main machine, and / or at least part of the cleaning assembly is detachably connected to the cleaning head.

[0093] In an embodiment, the side wall of the second matching part is configured with a guide slope, and the first knob part is configured with a matching slope for sliding matching with the guide slope; and / or,

[0094] The first knob part is provided with a first limiting protrusion, and when the first knob part is in the locked position, the first limiting protrusion blocks the first knob part from being separated from the second matching part.

[0095] In an embodiment, the outer surface of the dust cover is configured with a protruding removal part; and when the first knob part is in the first unlocking position, the removal part is configured to be operatively pushed to disconnect the dust cover from the nozzle body.

[0096] In an embodiment, the removing portion protrudes from the first knob portion; and / or, a pushing surface of the removing portion is arranged obliquely relative to an outer surface of the dust cover.

[0097] In an embodiment, the nozzle body is provided with a marking portion, and the handle is provided with an identification portion for identifying the marking portion.

[0098] In an embodiment, one of the marking portion and the identification portion is configured as a male connector, and the other is configured as a female connector for connecting with the male connector.

[0099] In an embodiment, an elastic member is connected between the handle and the first clamping portion, and the elastic member is used to drive the first clamping portion to connect with at least one of the first matching portion and the second matching portion after an external force is removed.

[0100] In an embodiment, the first clamping portion includes a fixing segment, a clamping segment, and an unlocking segment, the fixing segment is connected to the handle, and the clamping segment is used to connect with the first matching portion and the second matching portion; one of the clamping segment and the unlocking segment is connected to the elastic member.

[0101] In response to an unlocking operation of the unlocking segment, the clamping segment can move to a second unlocking position to be disconnected from the first matching portion.

[0102] In an embodiment, the clamping segment is located between the fixing segment and the unlocking segment, and in response to a pressing operation of the unlocking segment, the clamping segment can be disconnected from the first matching portion.

[0103] The nozzle body has an opening, and a brush seat is arranged in the opening; the brush seat is provided with bristles, a steam injection hole, and a suction port; the bristles are located between the steam injection hole and the suction port; the steam injection hole is in communication with a first steam channel of the nozzle body, and the suction port is in communication with a first suction channel of the nozzle body; when the nozzle body is in a connected state with the handle, the first steam channel is in communication with a second steam channel of the handle, and the first suction channel is in communication with a second suction channel of the handle.

[0104] In an embodiment, the control method of the cleaning device further includes: receiving an update instruction of the configuration information, and updating the configuration information according to the update instruction.

[0105] In an embodiment, the method further includes: prompting the user with type information of the cleaning head and / or a target mode; or, in a case where it is monitored that the cleaning device has an anomaly, issuing an anomaly prompt.

[0106] The application also provides a cleaning control handle, which is provided with:

[0107] a type acquisition module configured to acquire type information of the connected cleaning head when connected with the cleaning head;

[0108] a mode response module configured to determine a target mode in response to a mode selection instruction of a cleaning mode, and to determine a cleaning parameter according to the type information of the cleaning head and the target mode to perform a cleaning operation.

[0109] The application also provides a cleaning head, which is configured with a type identifier for establishing a communication connection with a cleaning device and feeding back type information of the cleaning head.

[0110] The application also provides a cleaning system, which comprises the cleaning device of the fourth aspect and at least one terminal device, and the terminal device and the cleaning device are connected through wired or wireless communication,

[0111] The cleaning device and / or the terminal device are configured to display a human-computer interaction interface, acquire an interaction instruction of the cleaning device through the human-computer interaction interface, and control a working mode of the cleaning device based on the interaction instruction.

[0112] The human-computer interaction interface is also used to display type information of a cleaning head of the cleaning device, or display a target mode of the cleaning device, or issue an abnormal prompt of the cleaning device.

[0113] The application provides a steam control method, which is applied to a steam cleaning machine, and the method comprises the following steps:

[0114] In response to the identified cleaning scene, target flow and target power corresponding to the cleaning scene are acquired;

[0115] According to the target flow, cleaning liquid is injected into a heater, the cleaning liquid comprises water, the heater is controlled to heat the injected cleaning liquid at the target power, and cleaning steam of a target cleaning scene is output.

[0116] In an embodiment, after the target flow and the target power corresponding to the cleaning scene are acquired, the method further comprises the following steps: in response to a cleaning instruction of an object to be cleaned, the heater is controlled to operate to preheat the heater; the preheating temperature of the heater is acquired, and when the preheating temperature reaches a set temperature threshold, the cleaning liquid is injected into the heater according to the target flow.

[0117] In an embodiment, the injecting the cleaning liquid into the heater according to the target flow rate comprises power modulating the liquid pump according to the target flow rate, so that the liquid pump injects the cleaning liquid into the heater at the target flow rate based on the power modulation.

[0118] In an embodiment, the controlling the heater to heat the injected cleaning liquid at the target power and output the cleaning steam of the target cleaning scenario comprises power modulating the heater based on the target power, so that the heater operates at the target power and outputs the cleaning steam of the target cleaning scenario.

[0119] In an embodiment, the power modulation comprises at least one of pulse width modulation and pulse frequency modulation.

[0120] The application further provides a steam control device, which is applied to a steam cleaning machine, and comprises:

[0121] a response module, configured to acquire a target flow rate and a target power corresponding to the identified cleaning scenario in response to the identified cleaning scenario;

[0122] a processing module, configured to inject the cleaning liquid into the heater according to the target flow rate, and control the heater to heat the injected cleaning liquid at the target power and output the cleaning steam of the target cleaning scenario.

[0123] The application further provides a steam cleaning machine, which comprises a liquid pump, a heater, a cleaning head and a control unit, the liquid pump, the heater and the cleaning head are connected in sequence through a pipeline, and the control unit is in communication connection with the liquid pump and the heater respectively.

[0124] The liquid pump is configured to inject cleaning liquid of a water source into the heater through the pipeline.

[0125] The heater is configured to heat the injected cleaning liquid and output steam through the connected cleaning head.

[0126] The control unit comprises a memory and a processor, the memory stores a computer program, and the processor realizes the steps of the above method when executing the computer program.

[0127] Details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF DRAWINGS

[0128] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the accompanying drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0129] Fig. 1 is a perspective structural schematic view of a steam cleaning machine in a cleaning device according to an embodiment of the present application.

[0130] Fig. 2 is a perspective structural schematic view of a steam cleaning machine in a cleaning device according to an embodiment of the present application, with part of the shell removed.

[0131] Fig. 3 is a structural schematic view of a cleaning head in a steam cleaning machine in a cleaning device according to an embodiment of the present application.

[0132] Fig. 4 is a structural schematic view of a steam cleaning machine in a cleaning device according to an embodiment of the present application.

[0133] Fig. 5 is a structural schematic view of a steam cleaning machine in a cleaning device according to another embodiment of the present application.

[0134] Fig. 6 is a partial structural schematic view of a handle in a steam cleaning machine in a cleaning device according to an embodiment of the present application.

[0135] Fig. 7 is a schematic view of a cleaning device according to an embodiment of the present application.

[0136] Fig. 8 is a partial sectional view of the cleaning device shown in Fig. 7.

[0137] Fig. 9 is a schematic view of the cleaning device shown in Fig. 7 from another perspective.

[0138] Fig. 10 is a partial schematic view of a main machine in the cleaning device shown in Fig. 9 from another perspective.

[0139] Fig. 11 is a partial schematic view of a handle in the cleaning device shown in Fig. 9 from another perspective.

[0140] Fig. 12 is a schematic view of a cleaning head in a cleaning device according to an embodiment of the present application.

[0141] Fig. 13 is a partial schematic view of the cleaning head in the cleaning device shown in Fig. 12 from another perspective.

[0142] Fig. 14 is a schematic view of a cleaning head in a cleaning device according to another embodiment of the present application.

[0143] Fig. 15 is a left view of the cleaning head in the cleaning device shown in Fig. 14.

[0144] Fig. 16 is a schematic view of the cleaning head in the cleaning apparatus shown in Fig. 14, from another perspective.

[0145] Fig. 17 is a perspective view of the cleaning head from one angle, according to an embodiment of the present application.

[0146] Fig. 18 is a left side view of Fig. 17.

[0147] Fig. 19 is a side view of Fig. 17.

[0148] Fig. 20 is a perspective view of the cleaning head from another angle, according to an embodiment of the present application.

[0149] Fig. 21 is a perspective view of a specific embodiment of the cleaning head, according to an embodiment of the present application.

[0150] Fig. 22A is a schematic view of a handle and a nozzle body of the cleaning head in a disassembled state, according to an embodiment of the present application.

[0151] Fig. 22B is a cross-sectional view of the handle and the nozzle body of the cleaning head in a connected state, according to an embodiment of the present application.

[0152] Fig. 23A is a cross-sectional view of the cleaning head shown in Fig. 22A.

[0153] Fig. 23B is a partial schematic view of the handle of the cleaning head shown in Fig. 23A.

[0154] Fig. 24 is a schematic view of the handle of the cleaning head shown in Fig. 22A.

[0155] Fig. 25 is an exploded schematic view of the handle of the cleaning head shown in Fig. 24.

[0156] Fig. 26 is a schematic view of the nozzle body and the dust cover of the cleaning head shown in Fig. 22A.

[0157] Fig. 27 is a partial enlarged view of A of the cleaning head shown in Fig. 26.

[0158] Fig. 28 is a partial enlarged view of B of the cleaning head shown in Fig. 26.

[0159] Fig. 29 is a partial schematic view of a first knob portion of the cleaning head shown in Fig. 26.

[0160] Fig. 30 is an exploded schematic view of the nozzle body and the dust cover of the cleaning head shown in Fig. 26.

[0161] Fig. 31 is a partial enlarged view of C of the cleaning head shown in Fig. 30.

[0162] Fig. 32 is a schematic view of the dust cover of the cleaning head shown in Fig. 30.

[0163] FIG. 33 is a partial enlarged view of D in the cleaning head shown in FIG. 32.

[0164] FIG. 34A is a schematic view of a cleaning head according to another embodiment of the present application.

[0165] FIG. 34B is a cross-sectional view of the cleaning head shown in FIG. 34A.

[0166] FIG. 35 is a partial schematic view of a spray head body in the cleaning head shown in FIG. 34A.

[0167] FIG. 36 is a schematic view of a brush holder in the cleaning head shown in FIG. 34A.

[0168] FIG. 37 is a flowchart of a cleaning control method according to one embodiment.

[0169] FIG. 38 is a flowchart of a type information acquisition step according to one embodiment.

[0170] FIG. 39 is a schematic view of a Pin-based serial communication according to one embodiment.

[0171] FIG. 40 is a schematic view of Pin arrangement combinations according to one embodiment.

[0172] FIG. 41 is a block diagram of a cleaning control handle according to one embodiment.

[0173] FIG. 42 is a block diagram of a cleaning apparatus according to one embodiment.

[0174] FIG. 43A is a schematic view of a first user interface according to one embodiment.

[0175] FIG. 43B is a schematic view of a second user interface according to one embodiment.

[0176] FIG. 44 is a block diagram of an internal structure of a control apparatus according to one embodiment.

[0177] FIG. 45 is a schematic view of a conventional steam cleaner according to one embodiment.

[0178] FIG. 46 is a schematic view of a control principle of a conventional steam cleaner according to one embodiment.

[0179] FIG. 47 is a schematic view of a steam cleaner in a cleaning apparatus according to one embodiment.

[0180] FIG. 48 is a schematic view of a steam cleaner in a cleaning apparatus according to another embodiment.

[0181] FIG. 49 is a schematic view of a control principle of a steam cleaner in a cleaning apparatus according to one embodiment.

[0182] FIG. 50 is a temperature control comparison chart according to one embodiment.

[0183] Figure 51 is a flow diagram of a cleaning control method in one embodiment.

[0184] Figure 52 is a block diagram of a cleaning control device in one embodiment.

[0185] Explanation of reference numerals: 1, cleaning unit; 1a, cleaning head; 10, housing; 102, cleaning liquid injection pipe; 1021, cleaning liquid injection hole; 1031, negative pressure port upper shell, 1032, negative pressure port lower shell; 1032a, fixing groove; 104, upper shell body; 105, lower shell body; 11, injection port; 12, suction port; 13, scraping part; 100, injection head main body; 110, first knob part; 111, matching inclined surface; 112, first limiting protrusion; 120, first matching part; 130, first dirt suction channel; 140, positioning piece; 150, first steam channel; 170, air inlet; 180, open mouth; 181, brush hair; 182, brush seat; 183, steam injection hole; 184, dirt suction port; 185, brush mounting hole; 191, second marking part; 2, steam generation unit; 20, cleaning assembly; 201, positioning part; 2011, first positioning side plate; 2012, second positioning side plate; 202, cleaning part; 203, first cleaning part; 2031, mounting protruding rib; 204, second cleaning part; 21, liquid injection unit; 2101, liquid storage tank; 2102, second water pump; 2103, first liquid level meter; 22, electric heater; 23, temperature sensor; 24, first control valve; 3, auxiliary heating unit; 31, auxiliary heater; 32, first water pump; 33, water storage device; 34, heat exchanger; 35, second control valve; 200, dust cover; 210, second matching part; 211, guide inclined surface; 220, removal part; 221, pushing surface; 230, negative pressure port; 240, positioning hole; 4, sewage collection unit; 41, sewage tank; 42, suction force motor; 43, second liquid level meter; 5, control unit; 51, controller; 52, control component; 521, first control piece; 522, second control piece; 53, voice alarm unit; 6, main machine; 61, machine shell; 62, first heat source interface; 63, second heat source interface; 64, walking wheel; 610, fixing seat; 611, first insertion slot; 6111, first collection part; 612, stop plate; 613, storage groove; 614, heat dissipation hole; 615, first gap; 7, handle; 71, first induction contact group; 72, negative pressure channel; 73, steam pipe channel; 74, steam delivery pipeline; 710, first cleaning channel; 720, first dirt channel; 730, first marking part; 8, self-cleaning unit; 81, self-cleaning box; 82, induction switch; 9, connecting pipe; 310, first clamping part; 311, fixed segment; 3111, connecting hole; 312, curved segment; 313, buckle segment; 314, unlocking segment; 330, support structure; 331, support plate; 332, support column; 333, first fixing part; 340, second steam channel; 350, second dirt suction channel. DETAILED DESCRIPTION

[0186] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0187] Referring to FIGS. 1-4, an embodiment of the cleaning device provided by the present application includes a cleaning unit 1, a liquid spraying unit 21, a sewage collecting unit 4, and a control unit 5. The cleaning unit 1 has a spray port 11 and a suction port 12. The liquid spraying unit 21 is connected to the spray port 11 and is used to spray cleaning liquid to the surface to be cleaned. The sewage collecting unit 4 is connected to the suction port 12 and is used to suck the dirt or sewage generated during cleaning. The liquid spraying unit 21 and the sewage collecting unit 4 are both connected to the control unit 5, which is used to control the start and stop of the liquid spraying unit 21 and the sewage collecting unit 4. The above-mentioned cleaning device integrates the liquid spraying unit 21 and the sewage collecting unit 4, so that the process of spraying cleaning liquid and sucking dirt or sewage can be completed on the same device, greatly improving the cleaning efficiency. The presence of the control unit 5 allows the user to manage the entire cleaning process through one operation, reducing the operation steps and improving the user experience. According to different cleaning needs, the control unit 5 can flexibly adjust the amount of liquid sprayed and the suction force, so that the device can better adapt to various working environments and task requirements.

[0188] In an embodiment, the cleaning device is a steam cleaner, and the cleaning unit 1 includes a cleaning head 1a provided with the spray port 11 and the suction port 12. The steam cleaner includes a steam generating unit 2 connected to the control unit 5. The steam generating unit 2 includes an electric heater 22 and the liquid spraying unit 21 connected to each other. The electric heater 22 is used to heat the cleaning liquid to provide steam for the liquid spraying unit 21. The control unit 5 is used to control the start and stop of the steam generating unit 2. The liquid spraying unit 21 can provide cleaning liquid (such as water). After the cleaning liquid is heated by the electric heater 22, steam can be generated, so that the liquid spraying unit 21 can be provided with steam, and the liquid spraying unit 21 can spray steam to the surface to be cleaned. The traditional steam cleaner separates the steam generation and the spraying control, resulting in large heat loss and unstable steam pressure. The present application centrally manages the start and stop of steam generation, spraying, and sewage recovery through the control unit 5, and realizes rapid steam generation and accurate spraying through the direct linkage of the liquid spraying unit 21 and the electric heater 22, thereby reducing energy loss. At the same time, through the linkage of the sewage collecting unit 4 and the suction port 12 of the cleaning head 1a, the recovery of dirt and sewage is realized, avoiding residue and further ensuring the cleaning efficiency.

[0189] The cleaning device can heat the cleaning liquid by using the heating element to provide steam, but the heating method is only electric heating, that is, the heat source for generating steam is only electric energy, which consumes a large amount of electric energy. Based on this, an embodiment of the present application provides a cleaning device which can solve the above problems. In the following, a cleaning device provided by an embodiment will be described in detail.

[0190] The cleaning device of the embodiment of the present application can be a steam cleaner, and the steam cleaner further comprises a secondary heating unit 3 connected with the control unit 5. Referring to FIGS. 1 to 4, the control unit 5 can control the start and stop of the secondary heating unit 3, and the secondary heating unit 3 and the electric heater 22 can be connected in parallel. The secondary heating unit 3 and the electric heater 22 are used for heating the cleaning liquid, and the heat source of the secondary heating unit 3 is a cleaning heat source. In the following, the secondary heating unit 3 will be described in detail.

[0191] Referring to FIGS. 1 to 4, in an embodiment, the cleaning device comprises a cleaning head 1a, a control unit 5, and a steam generating unit 2, a secondary heating unit 3, and a sewage collecting unit 4 connected with the control unit 5, respectively. As shown in FIG. 3, the cleaning head 1a has a spray port 11 and a suction port 12. As shown in FIGS. 2 and 4, the steam generating unit 2 comprises a liquid spraying unit 21 and an electric heater 22 connected with each other. As shown in FIG. 4, the secondary heating unit 3 and the electric heater 22 are connected in parallel, and both are used for heating the cleaning liquid to provide steam for the liquid spraying unit 21. The heat source of the secondary heating unit 3 is a cleaning heat source. The liquid spraying unit 21 is connected with the spray port 11 and used for spraying steam to a surface to be cleaned. The sewage collecting unit 4 is connected with the suction port 12 and used for sucking dirt or sewage generated by cleaning. The control unit 5 is used for controlling the start and stop of the steam generating unit 2, the secondary heating unit 3, and the sewage collecting unit 4.

[0192] It is understandable that the liquid spraying unit 21 can provide cleaning liquid, and steam can be generated after the cleaning liquid is heated by using the electric heater 22 and / or the auxiliary heating unit 3, so that the liquid spraying unit 21 can be provided with steam, and the liquid spraying unit 21 can spray steam to the surface to be cleaned. In use, the electric heater 22 of the steam generating unit 2 and the auxiliary heating unit 3 can be controlled to start or stop according to the cleaning requirements and the energy conditions by the control unit 5. In an embodiment, the electric heater 22 can be controlled to work and the auxiliary heating unit 3 can be controlled to not work by the control unit 5, so that only electric energy is used to heat the cleaning liquid to generate steam. The electric heater 22 can be controlled to work and the auxiliary heating unit 3 can be controlled to work by the control unit 5, so that electric energy and clean energy are used to generate steam. The electric heater 22 can be controlled to not work and the auxiliary heating unit 3 can be controlled to work by the control unit 5, so that only clean energy is used to generate steam. It can be seen that the cleaning device provided by the embodiment of the present application, such as the steam cleaning machine, can not only use electric energy to generate steam, but also use clean energy to generate steam, so that the consumption of electric energy for steam cleaning operation can be reduced, the electric energy can be saved, and the electricity cost can be reduced. It is worth noting that the clean energy used by the auxiliary heating unit 3 to heat the cleaning liquid to generate steam is a kind of clean energy that does not emit pollutants and can be directly used for production or life, which is a kind of energy other than electric energy, such as renewable energy, for example, solar energy, or waste heat, which is not limited in the present application.

[0193] In the embodiments provided by the present application, the clean energy used by the auxiliary heating unit 3 to heat the cleaning liquid can be solar energy, which is easy to obtain and can save electric energy to a large extent. It is calculated that the energy consumption can be reduced by more than 70%. In addition, the structure of the heating device using solar energy is relatively simple, the cost is relatively low, and the use is relatively convenient, which is beneficial to improve the steam generation efficiency and improve the cleaning efficiency and cleaning effect.

[0194] In some embodiments, the auxiliary heating unit 3 is used to provide steam, hot water or hot air for the liquid spraying unit 21. In actual setting, the specific structure of the auxiliary heating unit 3 is not limited. In an embodiment, the auxiliary heating unit 3 is used to provide steam for the liquid spraying unit 21. In an embodiment, please understand in combination with FIG. 4, the auxiliary heating unit 3 includes an auxiliary heater 31, and the auxiliary heater 31 and the electric heater 22 are connected in parallel, that is, the liquid inlet and the liquid outlet of the auxiliary heater 31 can be connected with the liquid inlet and the liquid outlet of the electric heater 22 respectively.

[0195] It is understandable that the auxiliary heater 31 is a heater capable of using clean heat source to heat cleaning liquid to generate steam. In the embodiment shown in Fig. 4, the auxiliary heater 31 is directly connected in parallel with the electric heater 22. In use, the auxiliary heater 31 can use the clean heat source to directly heat the cleaning liquid diverted from the pipeline where the electric heater 22 is located. Not only the structure is simple, but also the clean heat source can be fully utilized, which is conducive to saving electric energy. Even the electric heater 22 can be turned off, so that the cleaning liquid only passes through the auxiliary heater 31, and only the clean heat source is used to provide energy for steam generation, thereby the consumption of electric energy for steam cleaning can be saved to a greater extent.

[0196] In an embodiment, the auxiliary heating unit 3 is used to provide hot water for the liquid spraying unit 21.

[0197] In another embodiment provided in the present application, please understand in combination with Fig. 5, the auxiliary heating unit 3 includes a heat exchanger 34 and a water storage device 33, a first water pump 32 and an auxiliary heater 31 connected in sequence. In an embodiment, the outlet of the water storage device 33 is connected with the inlet of the first water pump 32 through a pipeline, the outlet of the first water pump 32 is connected with the inlet of the auxiliary heater 31 through a pipeline, the outlet of the auxiliary heater 31 is connected with the heat medium inlet of the heat exchanger 34 through a pipeline, the heat medium outlet of the heat exchanger 34 is connected with the inlet of the water storage device 33, and the heat exchanger 34 is connected in parallel with the electric heater 22.

[0198] It is understandable that the heat brought by the clean heat source can be large. If the auxiliary heater 31 is directly used to heat the cleaning liquid, the temperature of the generated steam can be high under high pressure, for example, it can reach more than 600 degrees. The cleaning equipment such as the steam cleaning machine provided in the above-mentioned embodiment of the present application is provided with the heat exchanger 34, the auxiliary heater 31 and the heat exchanger 34 are connected, and the heat exchanger 34 and the electric heater 22 are directly connected in parallel. In use, the auxiliary heater 31 can use the clean heat source to heat the cleaning liquid such as water pumped by the first water pump 32, and send the heated water into the heat exchanger 34, and heat exchange with the cleaning liquid entering the inside of the heat exchanger 34 to heat the cleaning liquid, generate steam and supply the steam to the cleaning head 1a. In this way, the temperature of the generated steam can be easily controlled within a safe range, so as to reduce the safety risk and not easy to damage the to-be-cleaned articles, and also can protect the personal safety. It can be seen that in actual use, the structure form of the auxiliary heating unit 3 can be selected according to the temperature of the above-mentioned clean heat source. In an embodiment, when the temperature provided by the clean heat source is not particularly high, the simple structure that the auxiliary heater 31 and the electric heater 22 are directly connected in parallel can be used, and when the temperature provided by the clean heat source is particularly high, the safe structure that the auxiliary heater 31 is connected in parallel with the heat exchanger 34 and the electric heater 22 can be used. Therefore, the structure form of the auxiliary heating unit 3 provided in the embodiment of the present application is flexible.

[0199] In an embodiment not shown in the present application, the auxiliary heating unit 3 and the electric heater 22 can also be connected in series. In an embodiment, when the auxiliary heating unit 3 only includes the auxiliary heater 31 as shown in FIG. 4, the auxiliary heater 31 can be connected in series with the electric heater 22, specifically, upstream or downstream of the electric heater 22. When the auxiliary heating unit 3 includes the auxiliary heater 31, the first water pump 32, the water reservoir 33 and the heat exchanger 34 as shown in FIG. 5, the heat exchanger 34 can be connected in series with the electric heater 22, specifically, upstream or downstream of the electric heater 22. In this way, the electric heater 22 and the auxiliary heating unit 3 can be controlled by the control unit 5 to work at the same time, so that the cleaning liquid passes through the electric heater 22 and the auxiliary heating unit 3 in turn, or passes through the auxiliary heating unit 3 and the electric heater 22 in turn, to generate steam through double heating. One of the electric heater 22 and the auxiliary heating unit 3 can also be controlled by the control unit 5 to work. Obviously, the parallel connection of the auxiliary heating unit 3 and the electric heater 22 in the above-mentioned embodiments of the present application is more conducive to the adjustment of the steam temperature and the compact arrangement of the parts of the cleaning device other than the auxiliary heating unit 3.

[0200] In an embodiment, the auxiliary heating unit 3 is used to provide hot air for the liquid spraying unit 21. In some embodiments, the auxiliary heating unit 3 can be connected in parallel or series with the electric heater 22, the auxiliary heating unit 3 including an auxiliary heater 31 for heating air and a fan for blowing the hot air around the auxiliary heater 31 to form hot air, thereby heating the flowing cleaning liquid. Alternatively, after the cleaning of the cleaning device, the auxiliary heating unit 3 provides hot air for the nozzle to dry the cleaned surface, so as to achieve the effect of dry cleaning.

[0201] In other embodiments, the auxiliary heating unit 3 can also be a thermal energy storage device, including a housing, a heat charging unit, a heat storage material and a heat releasing unit, the heat charging unit including a heat charging module, the heat charging module including a heat charging pipe. In some embodiments, the energy source of the thermal energy storage device can be light energy. The heat charging module can include a light heat charging mechanism (not shown in the figure), which can at least include a light delivery component, such as a light guide fiber or the like, the light delivery component being configured to be able to deliver light into the heat charging pipe to directly heat the heat charging pipe with light energy, and then the heat charging pipe transmits the heat energy to the heat storage material for storage. In this way, direct conversion of light energy to heat energy can be achieved.

[0202] In some embodiments, the energy source of the thermal energy storage device can be clean energy converted electricity. For example, the heat charging module can be a coal-fired power plant, a photovoltaic power plant, or a wind power plant, etc., which converts clean energy into electricity, generates heat through electricity, and stores heat in the heat storage material. Understandably, in some embodiments, the auxiliary heating unit 3 can not be provided, and the steam can be generated after the cleaning liquid is heated by the electric heater 22, so as to provide steam for the liquid spraying unit 21. In actual arrangement, the structure of the cleaning head 1a is not limited. In an embodiment, as shown in FIG. 3, the cleaning head 1a can have a spray port 11 and a suction port 12 arranged circumferentially on the outer side of the spray port 11, which is beneficial to improve the cleaning effect and cleaning efficiency.

[0203] In actual arrangement, the structure of the liquid spraying unit 21 is not limited. In an embodiment, as shown in FIG. 4, the liquid spraying unit 21 can include a liquid storage tank 2101 and a second water pump 2102 connected with each other. In an embodiment, the liquid storage tank 2101 can be used to store cleaning liquid such as water, the liquid outlet of the liquid storage tank 2101 can be connected with the liquid inlet of the second water pump 2102 through a pipeline, the liquid outlet of the second water pump 2102 can be connected with the liquid inlet of the electric heater 22, and the gas outlet of the electric heater 22 can be connected with the spray port 11 of the cleaning head 1a. The second water pump 2102 can be an electromagnetic pump, which can reliably and stably supply the cleaning liquid to the electric heater 22. The second water pump 2102 can be connected with the control unit 5, and the control unit 5 can control the start and stop of the steam generating unit 2 by controlling the start and stop of the second water pump 2102. In this way, the liquid spraying unit 21 has a simple structure and can efficiently supply cleaning liquid. In cooperation with the electric heater 22, the steam generating unit 2 can greatly improve the efficiency of generating steam under the control of the control unit 5, which is beneficial to improve the cleaning effect and cleaning efficiency.

[0204] In actual arrangement, the structure of the sewage collecting unit 4 is not limited. In an embodiment, as shown in FIG. 4, the sewage collecting unit 4 can include a sewage tank 41 and a suction motor 42 connected with each other. In an embodiment, the liquid inlet of the sewage tank 41 can be connected with the suction port 12 of the cleaning head 1a, and the liquid inlet of the suction motor 42 can be connected with the liquid outlet of the sewage tank 41. The suction motor 42 can be connected with the control unit 5, and the control unit 5 can control the start and stop of the sewage collecting unit 4 by controlling the start and stop of the suction motor 42. In this way, the sewage collecting unit 4 has a simple structure and can efficiently absorb the dirt or sewage generated during cleaning, which is beneficial to further improve the cleaning effect and cleaning efficiency.

[0205] In the embodiments provided in the present application, the cleaning device can further be provided with a main machine 6, as shown in FIG. 1, which can include a machine shell 61, and the steam generating unit 2, the auxiliary heating unit 3, the sewage collecting unit 4 and the control unit 5 can be partially arranged in the machine shell 61, so as to improve the integration of the cleaning device, and make the structure more compact and the operation more convenient.

[0206] Specifically, the auxiliary heating unit 3 can be integrated in the main machine 6 or connected to the main machine 6 as an external accessory. In the embodiments provided in the present application, as shown in FIG. 2, the liquid storage tank 2101, the second water pump 2102 and the electric heater 22 of the steam generating unit 2 can be integrated in the main machine 6, and the auxiliary heating unit 3 can be connected to the main machine 6 as an external accessory. In an embodiment, the machine shell 61 of the main machine 6 can be provided with a first heat source interface 62 and a second heat source interface 63, and the pipeline connecting the cleaning liquid inlet and the steam outlet of the auxiliary heating unit 3, i.e., the pipeline connecting the liquid inlet and the gas outlet of the auxiliary heater 31 in the embodiment shown in FIG. 4 or the pipeline connecting the refrigerant inlet and the refrigerant outlet of the heat exchanger 34 in the embodiment shown in FIG. 5, can pass through the first heat source interface 62 and the second heat source interface 63 respectively, and then be connected to the two ends of the electric heater 22 after entering the machine shell 61, so as to realize the parallel connection of the auxiliary heating unit 3 and the electric heater 22. As shown in FIG. 1 and FIG. 2, the bottom of the main machine 6 can be further provided with a walking wheel 64, so that the cleaning device is convenient to move and the operation convenience is improved.

[0207] In the embodiments provided in the present application, as shown in FIG. 1 and FIG. 2, the cleaning unit 1 further includes a handle 7, and the cleaning head 1a is connected to the steam generating unit 2 and the sewage collecting unit 4 through the handle 7. In this way, the position and posture of the cleaning head 1a can be conveniently adjusted by holding the handle 7, which is beneficial to improve the cleaning effect and the cleaning efficiency.

[0208] In the embodiments of the present application, as shown in FIG. 6, the handle 7 can have a first induction contact group 71, and the cleaning head 1a can have a second induction contact group, and the first induction contact group 71 can be connected to the control unit 5 as shown in FIG. 4 to FIG. 5. In use, the cleaning head 1a is connected to the handle 7, so that the second induction contact group is connected to the first induction contact group 71, so that the first induction contact group 71 sends an electric signal to the control unit 5. The control unit 5 can identify the type information of the cleaning head 1a according to the electric signal, and can adjust the working mode of the cleaning device according to the type information, so that the steam generating unit 2 and the sewage collecting unit 4 are in the working state in the corresponding working mode.

[0209] For example, the steam cleaning machine has multiple working modes, such as a first type of working mode divided by different steam temperatures, a second type of working mode divided by whether cleaning and suction work simultaneously, and the like, without limitation. For example, different types of cleaning heads 1a are used for different objects to be cleaned, and different steam temperatures are controlled for different types of cleaning heads 1a.

[0210] In the embodiments of the present application, the first induction contact group 71 on the handle 7 cooperates with the second induction contact group on the cleaning head 1a to automatically identify the type of the cleaning head 1a, and the control unit 5 can match different working modes, such as different cleaning temperatures, for each type of cleaning head 1a, thereby being compatible with various types of cleaning heads 1a and being applicable to multiple application scenarios.

[0211] In the embodiments of the present application, as understood in combination with FIGS. 4 and 5, the steam generation unit 2 can further include a temperature sensor 23; the temperature sensor 23 can be connected to the control unit 5, the temperature sensor 23 can be used to measure the temperature information of the steam sprayed by the liquid spraying unit 21, and transmit the measured temperature information to the control unit 5; the control unit 5 can control the heating power of the electric heater 22 and / or the auxiliary heating unit 3 according to the type information of the cleaning head 1a and the temperature information of the steam, to control the temperature of the steam sprayed by the liquid spraying unit 21. In this way, automatic and efficient control of the steam temperature can be achieved, which is beneficial to improving the cleaning efficiency.

[0212] In the embodiments of the present application, as shown in FIG. 6, the handle 7 can further be provided with a negative pressure channel 72 (the negative pressure channel 72 can be the first dirt channel, or a channel connected between the first dirt channel and the sewage collection unit) and a steam pipe channel 73, and the steam pipe channel 73 can be provided with a steam delivery pipeline 74 (i.e., the first cleaning channel); when the cleaning head 1a is connected to the handle 7, the nozzle 11 of the cleaning head 1a can be in communication with the steam delivery pipeline 74, and the suction port 12 can be in communication with the negative pressure channel 72. In addition, as shown in FIGS. 1 and 2, the cleaning device, such as the steam cleaning machine, can be further provided with a connecting pipe 9 (containing the steam delivery pipeline 74 and the first dirt channel), and the handle 7 can be connected to the main machine 6 through the connecting pipe 9; in an embodiment, the negative pressure channel 72 of the handle 7 can be in communication with the sewage tank 41 through the connecting pipe 9, and the steam delivery pipeline 74 can extend into the connecting pipe 9 and be connected to the liquid outlet of the electric heater 22 after extending out of the connecting pipe 9; the connecting pipe 9 can be a hose, which facilitates the adjustment of the position and posture of the cleaning head 1a by the handle 7. When specifically provided, the type of the temperature sensor 23 is not limited, for example, it can be an NTC temperature sensor, which can be arranged on the steam delivery pipeline 74, or on the surface of the electric heater 22 or the auxiliary heater 31, which is not limited in the present application.

[0213] In the embodiments provided in the present application, the cleaning device further comprises a self-cleaning unit 8 as shown in FIG. 1 and FIG. 2; the self-cleaning unit 8 can be connected with the control unit 5 as shown in FIG. 4 and FIG. 5, and the self-cleaning unit 8 can be used for cleaning the cleaning head 1a, and the control unit 5 is used for controlling the start and stop of the self-cleaning unit 8. It can be understood that the cleaning head 1a sprays steam to clean the surface to be cleaned, and dirt or sewage will be generated during cleaning. Although most of the dirt and sewage can be collected by the sewage collection unit 4, a small part of the dirt and sewage is easy to contaminate the cleaning head 1a, and the cleaning head 1a needs to be cleaned frequently. When the cleaning head is contaminated, the cleaning head needs to be cleaned manually frequently, which is not only time-consuming and laborious, but also has poor user experience. The cleaning device provided in the above embodiments of the present application can realize automatic cleaning of the cleaning head 1a under the control of the control unit 5, improve the self-cleaning efficiency, save manpower, and improve the user experience due to the provision of the self-cleaning unit 8.

[0214] When specifically arranged, the structure of the self-cleaning unit 8 is not limited. In an embodiment, as shown in FIG. 1 and FIG. 4 and FIG. 5, the self-cleaning unit 8 can comprise a self-cleaning box 81 and an induction switch 82; the induction switch 82 can be arranged in the self-cleaning box 81, and the induction switch 82 can be connected with the control unit 5; the cleaning head 1a can be inserted into the self-cleaning box 81 to trigger the induction switch 82; and the control unit 5 can control the start and stop of the steam generating unit 2 such as the liquid spraying unit 21 according to the state of the induction switch 82.

[0215] In this way, when in use, after the cleaning head 1a is inserted into the self-cleaning box 81, the induction switch 82 can be triggered, the induction switch 82 can send a self-cleaning signal to the control unit 5, and the control unit 5 can control the steam generating unit 2 to start, generate steam, and spray the steam out of the nozzle 11 of the cleaning head 1a. Since a cleaning chamber can be formed in the self-cleaning box 81, the steam can clean the cleaning head 1a in the cleaning chamber. In this process, only the cleaning head 1a needs to be inserted into the self-cleaning box 81, which is convenient and fast, can quickly realize self-cleaning of the cleaning device, has high cleaning efficiency, and can further improve the user experience. It can be seen that since the cleaning head 1a is connected with the steam generating unit 2 through the handle 7, when the cleaning head 1a is inserted into the self-cleaning box 81 to realize self-cleaning of the cleaning head 1a, the handle 7 and the pipe wall of the sewage recovery pipeline in the main machine 6 can also be cleaned, realizing self-cleaning of the cleaning head and the sewage recovery pipeline. It should be noted that the induction switch 82 can be a mechanical induction switch or an infrared induction switch, and the specific type is not limited.

[0216] In the embodiments provided in the present application, please understand that the control unit 5 can include a controller 51 and a control component 52 connected with each other, the control component 52 can be used to adjust the working mode of the cleaning device, the working mode of the cleaning device can include a cleaning mode and a drying mode, that is, the second type of working mode divided according to whether the cleaning and suction work at the same time; in the cleaning mode, the steam generating unit 2 and the sewage collecting unit 4 work at the same time; in the drying mode, the steam generating unit 2 does not work, and the sewage collecting unit 4 works. In this way, the automatic switching of the cleaning and drying modes can be realized, the operation is convenient and fast, and the experience is good. In actual setting, the specific structure form of the control component 52 is not limited. In an embodiment, the control component 52 can include a first control piece 521 and a second control piece 522 as shown in FIG. 1; the first control piece 521 can be used to control the cleaning device to enter or exit the cleaning mode, and the second control piece 522 can be used to control the cleaning device to enter or exit the drying mode. In this way, special control pieces can be set for commonly used cleaning functions and drying functions, the operation is more convenient and fast, and the user experience can be further improved.

[0217] It is worth noting that the specific form of the first control piece 521 and the second control piece 522 is not limited, which can be a control button, and the cleaning device can enter the corresponding working mode by pressing the corresponding control button, and the cleaning device can exit the corresponding working mode by pressing the button again. Of course, the two can also be control knobs, and the cleaning device can enter or exit the corresponding working mode by rotating the corresponding knob. In fact, the control component 52 can also include only one control piece, which can be a knob, and the entering of the cleaning mode, the entering of the drying mode and the shutdown of the cleaning device can be realized by rotating the knob.

[0218] In addition, the control component 52 can be arranged on the handle 7 or the shell 61 of the main machine 6, and the specific arrangement is not limited. In the embodiments of the present application, as shown in FIG. 1, the control component 52 is arranged on the handle 7, and when the user holds the handle 7 to control the cleaning head 1a to work, the control component 52 on the handle 7 can be conveniently operated nearby to realize the switching and starting and stopping of the corresponding working mode.

[0219] In an embodiment, as shown in FIG. 4 and FIG. 5, a first liquid level meter 2103 can be arranged in the liquid storage tank 2101 of the steam generating unit 2, and a second liquid level meter 43 can be arranged in the sewage tank 41 of the sewage collecting unit 4, the first liquid level meter 2103 and the second liquid level meter 43 can be connected with the controller 51, the controller 51 can control the working of the second water pump 2102 according to the liquid level of the liquid storage tank 2101 measured by the first liquid level meter 2103, and can control the working of the suction motor 42 according to the liquid level of the sewage tank 41 measured by the second liquid level meter 43.

[0220] In the embodiments of the present application, the control unit 5 can further include a voice alarm unit 53; the voice alarm unit 53 can be connected with the controller 51; the control unit 5 can control the voice alarm unit 53 to perform the clean water tank water shortage alarm when the liquid level of the liquid storage tank 2101 is lower than the first liquid level threshold, and can control the voice alarm unit 53 to perform the sewage tank liquid level full alarm when the liquid level of the sewage tank 41 is higher than the second liquid level threshold, so as to timely remind the user to supplement the liquid storage tank 2101 and drain the sewage tank 41, so as to guarantee the stable operation of the steam cleaning work. In the embodiments provided in the present application, the electric heater 22 of the steam generation unit 2 can be further provided with a temperature protection switch, so as to prevent the safety accidents caused by the high temperature.

[0221] In the embodiments shown in FIG. 4, the gas outlet of the electric heater 22 in the steam generation unit 2 can be connected with the nozzle 11 of the cleaning head 1a through the steam conveying pipeline 74, and a first control valve 24 can be arranged on the pipeline connected between the second water pump 2102 and the electric heater 22; in the auxiliary heating unit 3, the liquid inlet of the auxiliary heater 31 can be connected with the liquid outlet of the second water pump 2102 through a pipeline, and the gas outlet of the auxiliary heater 31 can be connected with the steam conveying pipeline 74 through a pipeline, so as to realize the parallel connection of the auxiliary heater 31 and the electric heater 22; a second control valve 35 can be arranged on the pipeline connected between the auxiliary heater 31 and the second water pump 2102.

[0222] In the embodiment shown in FIG. 5, unlike the embodiment shown in FIG. 4, in the auxiliary heating unit 3, the refrigerant inlet of the heat exchanger 34 can be connected to the liquid outlet of the second water pump 2102 through a pipeline, and the refrigerant outlet of the heat exchanger 34 can be connected to the steam delivery pipeline 74 through a pipeline, so as to realize the parallel connection of the heat exchanger 34 and the electric heater 22. The pipeline connected between the heat exchanger 34 and the second water pump 2102 can be provided with the second control valve 35 described above. Both the first control valve 24 and the second control valve 35 can be flow proportional valves. The flow of the liquid, for example, water, into the electric heater 22 can be controlled by controlling the flow of the first control valve 24, or the flow of the water into the auxiliary heating unit 3 can be controlled by controlling the opening of the second control valve 35, so as to control the flow of the steam in the steam delivery pipeline 74, thereby controlling the intensity of the steam cleaning. Both the first control valve 24 and the second control valve 35 described above can be solenoid valves. The electric heater 22 can be used to heat the cleaning liquid by controlling the first control valve 24 to open and the second control valve 35 to close. The electric heater 22 and the auxiliary heater 31 can be used to heat the cleaning liquid by controlling the first control valve 24 and the second control valve 35 to open. The auxiliary heater 31 can be used to heat the cleaning liquid by controlling the first control valve 24 to close and the second control valve 35 to open. In this way, the free switching of the energy source for providing heat for the steam generation unit 2 is realized. The cleaning device provided in the above embodiments of the present application can use clean energy to provide the heat required for steam generation, thereby reducing the consumption of electric energy and lowering the cost, and can be widely applied to the cleaning of tableware, cloth, glass, vehicles, clothes, kitchen and ground, etc., and has a wide application range.

[0223] After the cleaning device finishes cleaning the surface to be cleaned, the cleaning handle and the recovery pipeline of the sewage collection unit need to be cleaned to prevent the dirt attached to the wall of the recovery pipeline from affecting the suction force of the cleaning device. In the related art, a detachable accessory, for example, a cleaning cover, is installed on the cleaning head of the cleaning handle, the cleaning liquid is sprayed to the cleaning cover through the cleaning head, and then is recovered through the sewage collection unit, so as to realize the self-cleaning of the recovery pipeline. However, this method can cause the cleaning liquid to overflow, thereby increasing the cleaning workload, and the accessory is easy to be lost.

[0224] In combination with FIG. 2, FIG. 8 to FIG. 15, in an embodiment, the cleaning device comprises a main machine 6, wherein the main machine 6 is provided with a liquid spraying unit 21 (also referred to as a cleaning liquid supply unit) and a sewage collecting unit 4; the main machine 6 is provided with a self-cleaning unit 8; the cleaning unit 1 is provided with a first cleaning channel 710 and a first sewage channel 720 which are spaced apart, the first cleaning channel 710 is connected to the liquid spraying unit 21 so that the cleaning liquid is sprayed through the spray port of the first cleaning channel 710; the first sewage channel 720 is connected to the sewage collecting unit 4 so that the sewage is sucked through the suction port of the first sewage channel 720; in the first state, the cleaning unit 1 is detachably connected to the self-cleaning unit 8, and the spray port of the first cleaning channel 710 and the suction port of the first sewage channel 720 are both located in the self-cleaning unit 8, so that the cleaning device can enter the self-cleaning mode. It can be understood that the first state corresponds to the cleaning device being in a non-cleaning mode, i.e., a state in which the cleaning device does not need to clean the surface to be cleaned. In this way, after the user has cleaned the surface to be cleaned, the cleaning unit 1 can be plugged into the self-cleaning unit 8 of the main machine 6, and the cleaning device can enter the self-cleaning mode. The self-cleaning mode is that the cleaning device sprays cleaning liquid through the spray port of the first cleaning channel 710, under the negative pressure suction force of the sewage collecting unit 4, the cleaning liquid enters the first sewage channel 720 and flows in the first sewage channel 720, so as to flush down the sewage attached to the wall of the first sewage channel 720 and other recovery pipelines, thereby realizing the washing and cleaning of the recovery pipeline wall, and then the sewage collecting unit 4 recovers, realizing the self-cleaning of the recovery pipeline of the cleaning device. In some embodiments, the self-cleaning unit 8 can be a first insertion slot 611 provided in the main machine 6. In other embodiments, the self-cleaning unit can also be the self-cleaning box 81 of the foregoing embodiments.

[0225] In the following, the cleaning device is taken as an example with the self-cleaning unit 8 arranged in the first slot 611 of the main machine 6, and the handle 7 included in the cleaning unit 1. As shown in FIGS. 2, 8-15, in an embodiment, the handle 7 is provided with the first cleaning channel 710 and the first dirt channel 720 as described above. In the first state, the handle 7 is detachably connected to the first slot 611, and the outlet of the first cleaning channel 710 and the inlet of the first dirt channel 720 are both located in the first slot 611, so that the cleaning device can enter the self-cleaning mode. In this way, after the user finishes cleaning the surface to be cleaned, the handle 7 can be inserted into the first slot 611 of the main machine 6, and the cleaning device can enter the self-cleaning mode. By arranging the first slot 611 in the main machine 6, the handle 7 after use can be directly inserted into the first slot 611, and the cleaning device can enter the self-cleaning mode without the user needing to additionally attach a cleaning cover or other cleaning accessories, thereby reducing the user's operation steps and achieving the self-cleaning of the recycling pipeline of the cleaning device while achieving the storage of the handle 7. At the same time, since no additional cleaning accessories need to be arranged, the risk of loss of cleaning accessories can be reduced, and the use cost of cleaning accessories can be reduced. When the handle 7 is inserted into the first slot 611, a closed space is formed between the first slot 611 and the handle 7, which effectively reduces the possibility of overflow of the cleaning liquid and the recovered dirt, thereby reducing the user's cleaning workload and improving the utilization rate of the cleaning liquid.

[0226] As shown in FIGS. 8 and 9, in an embodiment, along the radial direction of the handle 7, the outer circumferential surface of the handle 7 and the side wall of the first slot 611 have a first gap 615. In this way, when the cleaning device enters the self-cleaning mode, the cleaning device can introduce air from the outside through the first gap to maintain the negative pressure environment inside, so that the cleaning liquid can enter the first dirt channel 720 under the negative pressure suction of the sewage collection unit, thereby washing and cleaning the wall of the recycling pipeline. In an embodiment, the first gap 615 is greater than or equal to 0.2 mm. By reserving a certain gap, sufficient air flow can be sucked in, which ensures the suction efficiency and ensures that the suction process can continue. In addition, after the outside air enters, it helps to dilute and disperse the dirt, so that the dirt is more easily transported to the sewage collection unit.

[0227] Referring to FIGS. 8-11, in an embodiment, one of the handle 7 and the first slot 611 is provided with a first marking portion 730, and the other is provided with a first acquisition portion 6111; in response to the connection of the handle 7 and the first slot 611, the first acquisition portion 6111 can identify the first marking portion 730, and the cleaning device enters the self-cleaning mode or the standby self-cleaning mode. When the handle 7 is inserted into the first slot 611, the first marking portion 730 is identified by the first acquisition portion 6111, which can transmit a signal of the insertion of the handle 7 to the control unit of the cleaning device, so that the cleaning device can accurately judge whether the handle 7 has been correctly inserted into the first slot 611, and then directly enter the self-cleaning mode, or enter the standby self-cleaning mode, after which the user can start self-cleaning by clicking on the confirmation. In this way, an additional safety guarantee and user control mechanism are added, and the user can start self-cleaning after confirming that the device and the surrounding environment are ready, avoiding accidental cleaning operations due to accidental touch or failure to notice the device status. When the cleaning device enters the self-cleaning mode, the cleaning liquid is sprayed through the first cleaning channel 710, and the cleaning liquid flows in the first dirt channel 720, thereby flushing the dirt attached to the walls of the recovery pipeline such as the first dirt channel 720, achieving washing and cleaning of the recovery pipeline walls, and then the dirt is recovered by the sewage collection unit. The entire process forms a continuous cleaning cycle until the recovery pipeline reaches the desired cleaning effect, and the closed cleaning cycle system reduces the outflow of cleaning liquid, improves the utilization efficiency of the fluid, and reduces the cleaning workload of the user. Referring to FIGS. 8-11, in an embodiment, the first marking portion 730 is provided on the handle 7, and the first acquisition portion 6111 is provided on the main machine 6. In addition to being used in cooperation with the first acquisition portion 6111 to enable the cleaning device to enter the self-cleaning mode, in some embodiments, the first marking portion 730 stores type information of the handle 7, and when the handle 7 is inserted into the first slot 611 of the main machine 6, the first acquisition portion 6111 can identify the first marking portion 730 and transmit a signal to the control unit of the cleaning device, and the control unit can identify the type information of the handle 7 according to the signal, and then adjust the working parameters of the cleaning device according to the type information, such as adjusting the size of the suction force or the suction power. In other embodiments, the first acquisition portion can also be provided on the handle, and the first marking portion can be provided on the main machine.

[0228] Referring to FIG. 8, in an embodiment, one of the first marking part 730 and the first collection part 6111 is configured as a male connector, and the other is configured as a female connector for connecting with the male connector. For example, the first marking part 730 is a male connector, and the first collection part 6111 is a female connector. Of course, the first marking part 730 can also be a female connector, and the first collection part 6111 can be a male connector. In some embodiments, the male connector can be a PIN, and the female connector can be a PIN connection hole. When the handle 7 is plugged into the first slot 611, the PIN on the handle 7 is connected to the PIN connection hole on the host 6, the information on the first marking part 730 is read through the physical contact of the two, and the signal transmission is realized. In other embodiments, the first marking part 730 can be a two-dimensional code, NFC, RFID, Bluetooth, or other short-distance communication module, and the first collection part 6111 can be a reader or receiver. For example, when the first marking part 730 is a two-dimensional code, the first collection part 6111 can use a camera or a code scanner as a reader to read the information and transmit the signal; when the first marking part 730 is NFC, the first collection part 6111 can use a card reader as a reader; when the first marking part 730 is RFID, the first collection part 6111 can use an RFID reader as a reader; and when the first marking part 730 is Bluetooth, the first collection part 6111 can use a Bluetooth receiver to read the information and transmit the signal.

[0229] In an embodiment, at least one of the host 6 and the handle 7 is provided with an operation member (not shown in the figure). In a first state, in response to the selection operation of the operation member, the cleaning device is in a self-cleaning mode. In some embodiments, the operation member can be provided on the host 6. For example, the operation member is a self-cleaning button provided on the host 6. When the handle 7 is plugged into the first slot 611, the user presses the self-cleaning button on the host 6, so that the cleaning device can enter the self-cleaning mode. Of course, in other embodiments, the operation member can also be a self-cleaning button integrated on the handle 7. In another embodiment, the operation member can also be a touch screen control. The user interacts through the touch screen. For example, the host 6 or the handle 7 is provided with a touch screen interface, and the operation member is a graphical virtual button, a sliding bar, or a switch displayed on the touch screen interface. When the handle 7 is plugged into the first slot 611 of the host 6, the user clicks the operation member to make the device enter the self-cleaning mode. It can be understood that in some embodiments, the operation member can also not be provided. When the handle 7 is plugged into the first slot 611 of the host 6, the cleaning device automatically enters the self-cleaning mode.

[0230] Referring to FIGS. 7-9, in an embodiment, the host 6 is provided with a fixing seat 610, which is configured with a first slot 611. The handle 7 is connected by being provided on the host 6 with the fixing seat 610, which can provide additional support without occupying the space inside the host 6. In an embodiment, the fixing seat 610 can be provided on the side of the host 6 along the horizontal direction, which makes the insertion position of the handle 7 more ergonomic, so that the user can keep a natural and comfortable angle of the wrist and arm during use, reducing the fatigue caused by long-time operation. Moreover, the provision on the side can provide more space to facilitate the user to insert and pull out the handle 7. In some embodiments, the fixing seat 610 and the host 6 can be integrally formed. Of course, in other embodiments, the fixing seat 610 can also be a separate module that is detachably connected to the host 6 by screw connection, buckle connection or magnetic attraction connection, etc. In this way, the fixing seat 610 is convenient to maintain and replace. Referring to FIGS. 7-9, in an embodiment, the fixing seat 610 is configured with a stop plate 612 extending along the direction of gravity, which has a second gap with the side of the host 6 along the horizontal direction, and the second gap forms a receiving groove 613. In this way, when the handle 7 is inserted into the first slot 611, the connecting pipeline, such as the pipeline connected between the host 6 and the handle 7, and the control wire harness, such as power lines, control lines, etc. can be neatly wound on the fixing seat 610, i.e. accommodated in the receiving groove 613, which improves the aesthetic effect while reducing the risk of winding and knotting. At the same time, accommodating the pipeline and the control wire harness in the receiving groove 613 can also save space, and the stop plate 612 can block and limit the pipeline and the control wire harness to prevent them from coming out of the receiving groove 613 along the horizontal direction, etc. In some embodiments, the shape of the stop plate 612 can be a symmetrical figure, which facilitates the processing of the stop plate 612.

[0231] Referring to FIGS. 7-9, in some embodiments, the fixing seat 610 is provided with heat dissipation holes 614, which allow heat to be dissipated through air flow, increase air circulation around the fixing seat 610, help to carry away heat, improve the heat dissipation performance of the fixing seat 610, prevent overheating, and thus prevent the insulation layer or pipeline of the control wire harness wound around the fixing seat 610 from aging or melting due to high temperature, thereby prolonging the service life of the control wire harness, the pipeline, and the entire cleaning device. In an embodiment, the cleaning device further includes a receiving tube for accommodating at least one of the first cleaning channel 710, the first dirt channel 720, and the control wire harness of the cleaning device, and the receiving tube can be received in the receiving groove 613. By accommodating the pipeline and the control wire harness in the receiving tube, the receiving tube can play a protective role, reducing the chances of the pipeline and the control wire harness coming into contact with the ground or other sharp objects, thereby reducing the risk of wear and tear and prolonging their service life. In some embodiments, the receiving tube can be a bellows tube, which has good flexibility and bending properties, making it easy to coil inside the receiving groove 613.

[0232] Referring to FIGS. 12 and 13, in an embodiment, the cleaning device includes at least one cleaning head 1a detachably connected to the handle 7, that is, different types of cleaning heads 1a can be connected to the handle 7, such as the cleaning head 1a in the embodiment shown in FIG. 12, or the cleaning head 1a in the embodiment shown in FIG. 14, of course, other types of cleaning heads 1a, etc., which are not listed here. By connecting different types of cleaning heads 1a to the handle, the corresponding use scenarios can be matched. In some embodiments, the handle 7 is provided with a first collection portion 6111, and the cleaning head 1a is provided with a second marking portion (not shown in the figure); when the cleaning head 1a is connected to the handle 7, the first collection portion 6111 can identify the second marking portion, and the cleaning device enters a cleaning mode matched with the cleaning head 1a. Among them, the second marking portion stores the type information of the cleaning head 1a, and the second marking portion is identified by the first collection portion 6111, thereby transmitting a signal to the control unit of the cleaning device, and the control unit can identify the type information of the cleaning head 1a according to the signal, and thus can adjust the cleaning mode of the cleaning device according to the type information, such as adjusting the size of the suction force, the suction power, or the temperature of the cleaning liquid sprayed, to match the actual use scenario.

[0233] It should be noted that when the first marking part 730 in the foregoing embodiment is arranged on the main machine 6, the first collecting part 6111 for identifying the first marking part 730 is arranged on the handle 7, and at this time, the first collecting part 6111 for identifying the second marking part and the first collecting part 6111 for identifying the first marking part 730 described above can refer to the same component, that is, when the cleaning head 1a is connected to the handle 7, the first collecting part 6111 can identify the second marking part, and when the handle 7 is connected to the first slot 611 of the main machine 6, the first collecting part 6111 can identify the first marking part 730. Of course, in other embodiments, the first collecting part for identifying the second marking part and the first collecting part 6111 for identifying the first marking part 730 described above can also refer to different components, that is, the first collecting part 6111 is provided with at least two, at least one first collecting part 6111 is used to identify the first marking part 730, and at least one first collecting part is used to identify the second marking part.

[0234] Wherein, the cleaning head 1a and the handle 7 can be connected by thread connection, buckle connection, latch connection or magnetic connection, etc., for example, in the embodiment shown in FIG. 12, the cleaning head 1a and the handle 7 can adopt buckle connection, for example, the cleaning head 1a is provided with a protruding elastic buckle, and the handle 7 is provided with a clamping groove, when the cleaning head 1a is sleeved on the handle 7, the elastic buckle is clamped in the clamping groove, realizing the connection and fixation of the cleaning head 1a and the handle 7. Wherein, the cleaning head 1a is provided with spaced spray ports 11 and negative pressure ports 230 (i.e. the suction port of the foregoing embodiment); the spray ports 11 are in communication with the outlet of the first cleaning channel 710, and the negative pressure ports 230 are in communication with the inlet of the first dirt channel 720. In this way, the cleaning liquid supply unit sprays cleaning liquid to the cleaned surface through the spray ports 11 of the cleaning head 1a, realizing the cleaning of stains on the cleaned surface, and a negative pressure suction force is generated on the cleaned surface through the negative pressure ports 230, and the dirt and sewage generated by cleaning can be sucked into the sewage collection unit through the negative pressure ports 230 under the action of the negative pressure suction force, so as to absorb the cleaned dirt.

[0235] Referring to Figures 12 and 13, in some embodiments, taking a cylindrical cleaning head 1a as an example, the nozzle 11 is located on the central axis of the cleaning head 1a, and multiple negative pressure ports 230 are provided, which are arranged at intervals along the circumference of the nozzle 11. By arranging multiple negative pressure ports 230 around the outer circumference of the nozzle 11, the distribution of negative pressure suction on the surface being cleaned can be relatively uniform, thereby ensuring that the cleaning liquid sprayed from the nozzle 11 receives relatively uniform negative pressure suction, which can improve the cleaning effect and make the cleaning process easier and more convenient. At the same time, it can also prevent stains on the surface being cleaned from being sprayed away by the cleaning liquid, making the cleaning more effective, and it can also make the overall structure of the cleaning head 1a more compact and adaptable to various surfaces being cleaned. In some embodiments, the negative pressure ports 230 can be set as arc-shaped, such as circular, elliptical, or waist-shaped. In other embodiments, the negative pressure port may be located on the central axis of the cleaning head, with multiple nozzles arranged circumferentially around the outer side of the negative pressure port. This ensures a relatively uniform distribution of the cleaning fluid on the surface being cleaned, improving the cleaning effect. As shown in Figures 14 to 16, in some embodiments, the nozzles 11 may be arranged in a straight line, resulting in a larger flow rate and coverage area of ​​the cleaning fluid, better meeting cleaning needs. Of course, the arrangement of the nozzles 11 is not limited to this; it can be configured according to actual usage requirements.

[0236] Referring to Figures 12 and 13, in one embodiment, the cleaning head 1a is provided with a scraping portion 13 protruding relative to the nozzle 11. The scraping portion 13 is spaced apart from the nozzle 11, and at least a portion of the scraping portion 13 is covered by the cleaning liquid sprayed from the nozzle 11. By providing the scraping portion 13 to protrude relative to the nozzle 11 and the negative pressure port 230, on the one hand, the scraping portion 13 can scrape and contact the surface to be cleaned, achieving a physical cleaning effect. By moving or rotating the scraping portion 13 back and forth, stubborn stains on the surface to be cleaned can be removed more easily, thereby improving the cleaning effect on the surface to be cleaned. On the other hand, after the cleaning liquid is sprayed onto the surface to be cleaned, it is bounced up, flows through the scraping portion 13, and then enters the negative pressure port 230, thereby removing the stains from the scraping portion 13, thus achieving self-cleaning of the scraping portion 13 and reducing the possibility that the stains on the scraping portion 13 will affect the subsequent cleaning effect.

[0237] In an embodiment, the scraping part 13 comprises at least one of a scraper, a squeegee, a roller brush, a brush, a protrusion, a scouring pad, and a cleaning ball, which can be adapted to various application scenarios, such as dish cleaning, kitchen appliance cleaning, cloth cleaning, window cleaning, shoe cleaning, and floor cleaning, etc. When the scraping part 13 is a scraper, a squeegee, a brush, or a roller brush, it can be moved back and forth or rolled, and repeatedly physically contacts the dirt during the cleaning process, so as to loosen the dirt. When the scraping part 13 such as a scraper, a squeegee, a brush, or a roller brush is used for a long time, the scraping part 13 can be detached from the cleaning head 1a, and only the consumable such as the scraper, the squeegee, the brush, or the roller brush needs to be replaced. Of course, the cleaning head 1a connected with the scraping part 13 such as the scraper, the squeegee, the brush, or the roller brush can also be replaced as a whole. When the scraping part 13 is a scouring pad or a cleaning ball, only the scouring pad or the cleaning ball needs to be replaced when it is used for a long time, thereby improving the convenience of replacement, improving the cleaning efficiency, and saving the replacement cost.

[0238] Referring to FIGS. 12-13, in an embodiment, the scraping part 13 can be a protruding contact, and a plurality of protruding contacts can be provided, which are arranged along the circumference of the nozzle 11. The provision of a plurality of contacts can further improve the physical cleaning effect of the cleaning head 1a, and is more conducive to the cleaning of stubborn dirt on the cleaned surface. In some embodiments, the protruding contact can be made of a flexible material, such as a silicone, rubber, or nylon contact, etc., which has a certain deformation capability and can adapt to curved or rough surfaces, such as being used for cleaning cloth products.

[0239] Referring to FIGS. 14-16, in some embodiments, the scraping part 13 can be a one-letter-shaped squeegee, which can be used for cleaning hard surfaces such as glass and countertops. The flow direction of the cleaning liquid sprayed by the nozzle 11 forms an included angle of 5-30 degrees with the squeegee, the cleaning liquid is sprayed to the intersection line between the cleaned surface and the squeegee, and the liquid scraped off by the squeegee can be collected by the negative pressure port 230, while also taking away the dirt of the squeegee, thereby achieving self-cleaning of the squeegee. The number of squeegees can be one or more, for example, in the embodiment shown in the drawings, the number of squeegees is two, which can increase the scraping area while also providing support for each other. In some embodiments, the negative pressure port 230 can be provided on one of the squeegees, and the two squeegees can be arranged at a predetermined angle and maintain a certain gap therebetween to ensure smooth airflow. One of the squeegees can be a hard squeegee, and the other squeegee can be a flexible squeegee made of a high-temperature-resistant rubber material. Of course, in other embodiments, only one squeegee can be provided, which can be set according to actual use requirements.

[0240] In an embodiment, the cleaning liquid includes at least one of water vapor, water, and a solution containing a cleaning agent, which can be selected by a person skilled in the art according to actual needs. When water vapor is used as the cleaning liquid, the cleaning device further includes a steam generator (not shown in the figure), which generates high-temperature and high-pressure water vapor from clean water and sprays the water vapor to the surface to be cleaned through the spray port. In an embodiment, the steam generator can be a heater. By using water vapor as the cleaning liquid, the water vapor can accelerate the dissolution of stains due to the high temperature of the water vapor, and the cleaning effect can be further improved. When water or a solution containing a cleaning agent is used as the cleaning liquid, the spray pressure can be increased to improve the spray force, which is good for cleaning large volumes of dirt.

[0241] In an actual application scenario, the cleaning device can be a steam cleaner, a carpet cleaner, a floor cleaning machine, a cleaning robot, a vacuum cleaner, a high-pressure cleaner, or a medical disinfection and cleaning device. The cleaning liquid supply unit of the cleaning device provides the cleaning liquid to the surface to be cleaned through the cleaning head, so as to clean the dirt on the surface to be cleaned. The dirt after cleaning enters the sewage collection unit through the negative pressure port under the action of the negative pressure generated by the sewage collection unit, so as to collect the dirt.

[0242] In the related art, the cleaning head of the cleaning device cannot be self-cleaned after the brush contacts the dirt, and the next cleaning needs to be manually cleaned, which greatly reduces the cleaning efficiency and causes poor user experience.

[0243] Please refer to FIG. 17. The cleaning unit 1 of the cleaning device provided in an embodiment of the present application includes a cleaning head 1a, the cleaning head 1a includes a shell 10 and a cleaning assembly 20 (i.e., the scraping part in the foregoing embodiment), the cleaning assembly 20 is used for cleaning the object to be cleaned, and the shell 10 is provided with a spray port 11 and a negative pressure port 230 (i.e., the suction port in the foregoing embodiment). In some embodiments, at least part of the cleaning assembly 20 is contained in the negative pressure port 230. In this way, when the cleaning head 1a is cleaning the dirt, part of the dirt adhered to the cleaning head 1a can be sucked into the negative pressure port 230, that is, the cleaning assembly 20 can be partially self-cleaned, and the cleaning liquid of the present embodiment includes high-pressure water vapor.

[0244] In the first embodiment, at least part of the cleaning assembly 20 is contained in the negative pressure port 230. In this way, when the cleaning head 1a is cleaning the dirt, part of the dirt adhered to the cleaning head 1a can be sucked into the negative pressure port 230, that is, the cleaning assembly 20 can be partially self-cleaned, and the cleaning liquid of the present embodiment includes high-pressure water vapor. Through experimental verification, it is found that 60%-70% of the dirt on the cleaning assembly 20 can be sucked into the negative pressure port 230, that is, the cleaning head can be self-cleaned to a certain extent, and the cleaning time of the cleaning head can be prolonged to a certain extent.

[0245] In the second embodiment, the cleaning liquid sprayed from the nozzle 11 is obliquely sprayed to the cleaning part of the cleaning assembly, that is, at least part of the cleaning assembly 20 is arranged to be covered by the cleaning liquid sprayed from the nozzle 11. In this way, the cleaning liquid sprayed from the nozzle 11 can wash away part of the dirt adhered to the cleaning assembly 20, that is, the cleaning head can be partially self-cleaned. The cleaning liquid of the present embodiment includes high-pressure water vapor or pressurized water or pressurized cleaning solution. It is verified by experiments that the above design can wash away 70%-80% of the dirt on the cleaning assembly 20, that is, the cleaning head can be self-cleaned to a certain extent, and the cleaning time of the cleaning head in a single cleaning process can be prolonged to a certain extent.

[0246] As a third embodiment of the present application, please understand in combination with FIG. 17, at least part of the cleaning assembly 20 is arranged in the negative pressure port 230, and at least part of the cleaning assembly 20 can be covered by the cleaning liquid sprayed from the nozzle 11. It can be understood that the third embodiment of the present application combines the first embodiment and the second embodiment, that is, when the cleaning head is cleaning dirt, part of the dirt on the cleaning assembly 20 is washed away by the cleaning liquid sprayed from the nozzle 11, and part of the dirt is sucked into the negative pressure port 230. In addition, the dirt washed away from the cleaning assembly 20 is also sucked into the negative pressure port 230. It can be seen that the self-cleaning effect of the cleaning head disclosed in the present embodiment is much better than that of the above two embodiments. It is verified by experiments that the above design can clean 98%-100% of the dirt on the cleaning assembly 20, that is, the cleaning head can be completely self-cleaned, the cleaning time of the cleaning head in a single cleaning process can be greatly prolonged, and the user's good experience can be improved. It should be noted that at least part of the cleaning assembly 20 arranged in the negative pressure port 230 includes at least two implementation forms. One implementation form is that the cleaning assembly 20 is a single scraper, and the single scraper is embedded in the negative pressure port 230. Another implementation form is that the cleaning assembly 20 is a double scraper, and one of the double scrapers is embedded in the negative pressure port 230, or both of the double scrapers are embedded in the negative pressure port 230.

[0247] The specific structure of the cleaning assembly 20 is not limited in the embodiments of the present application, and any structure meeting the use requirements of the present application is within the protection scope of the present application. As one of the embodiments, the cleaning assembly 20 disclosed in the embodiments of the present application includes a positioning part 201 and a cleaning part 202, wherein the positioning part 201 is at least used for fixedly connecting the cleaning part 202 with the shell 10, and the cleaning part 202 is at least used for cleaning the cleaned object. In the specific embodiments provided in the present application, at least part of the positioning part 201 and the cleaning part 202 can be arranged in the negative pressure port 230. As one of the embodiments of the present application, in the actual arrangement, the cleaning assembly 20 can be a scraper, and the scraper positioning part 201 and the scraper cleaning part 202 can be embedded in the negative pressure port 230 as a whole.

[0248] As another embodiment of the present application, the positioning part 201 can be arranged on the two side walls opposite to the negative pressure port 230. When actually arranged, the positioning part 201 can be arranged on the upper and lower side walls of the negative pressure port 230, or the positioning part 201 can be arranged on the left and right side walls of the negative pressure port 230, and the cleaning part 202 is arranged in the negative pressure port 230.

[0249] In the specific embodiments provided by the present application, the positioning part 201 can be designed to form at least part of the negative pressure port 230, and at least part of the cleaning part 202 is arranged in the negative pressure port 230. For example, in actual arrangement, the positioning part 201 for positioning the cleaning part 202 is not required to be additionally arranged, and only the side plate forming the negative pressure port 230 is used to clamp the mounting end of the cleaning part 202 as the positioning part 201, and in this case, the cleaning part 202 is arranged in the negative pressure port 230. This design can reduce the components of the entire cleaning head, and effectively reduce the cost.

[0250] In the specific embodiments provided by the present application, please refer to FIG. 17 and FIG. 18 for understanding, the positioning part 201 specifically includes a first positioning side plate 2011, and the first positioning side plate 2011 forms a first side of the negative pressure port 230. In some embodiments, the positioning part 201 includes a second positioning side plate 2012, and the second positioning side plate 2012 forms a second side of the negative pressure port 230. In actual arrangement, the first positioning side plate 2011 and the second positioning side plate 2012 can be the upper and lower side plates forming the negative pressure port 230, or can be the left and right side plates forming the negative pressure port 230. The specific shape of the negative pressure port 230 is not limited in the embodiments of the present application, and the negative pressure port 230 can be a polygon, can be a circle, an ellipse, or can be other structures, which are not specifically limited in the embodiments of the present application. It is worth noting that when the negative pressure port 230 is a circle or an ellipse, the first positioning side plate 2011 and the second positioning side plate 2012 can be adaptively arranged as an arc. In the embodiments of the present application, the specific arrangement mode of the cleaning part 202 in the negative pressure port 230 is not limited, and any structure meeting the use requirements of the present application is within the protection scope of the present application, and the person skilled in the art can select according to actual needs.

[0251] As one of the embodiments, the cleaning part 202 can be clamped in the negative pressure port 230, for example, a protrusion can be arranged on the cleaning part 202, a groove is arranged on the side wall of the negative pressure port 230, and the protrusion of the cleaning part 202 is matched with the groove of the side wall of the negative pressure port 230, so that the cleaning part 202 is clamped with the negative pressure port 230. Of course, other clamping modes can also be adopted, which will not be listed one by one in the application. As another embodiment, the cleaning part 202 can also be screwed on the side wall of the negative pressure port 230, for example, bolt holes are respectively arranged on the cleaning part 202 and the side wall of the negative pressure port 230, and the cleaning part 202 is fixed on the side wall of the negative pressure port 230 through the bolt.

[0252] In the embodiments provided in the application, the positioning part 201 includes a fixing part, the cleaning part 202 includes a mounting end and a cleaning end, the fixing part is contained in the negative pressure port 230, the mounting end is detachably connected with the fixing part, and the cleaning end is used for cleaning the cleaned object. The positioning part 201 can be fixedly connected with the shell 10 or integrally formed with the shell 10. The specific structure of the positioning part 201 is not limited in the embodiments of the application. The positioning part 201 can be a positioning side plate, a positioning clamping plate, a positioning groove, a positioning protrusion or a positioning hole, and of course, other structures can also be used as long as the structures meet the use requirements of the application and are within the protection scope of the application. In the specific embodiments provided in the application, the positioning side plate, the positioning clamping plate, the positioning groove, the positioning protrusion or the positioning hole are contained in the negative pressure port 230, and the mounting end of the cleaning part 202 is fixedly connected with the positioning part 201, so that at least part of the cleaning assembly 20 is contained in the negative pressure port 230. The cleaning assembly 20 disclosed in the embodiments of the application can include one or more than two. When the cleaning assembly 20 is more than two, the two cleaning assemblies 20 can be arranged side by side or at a preset angle. The cleaning part 202 disclosed in the embodiments of the application can include one or more than two. When the cleaning part 202 is more than two, the two cleaning parts 202 can be arranged side by side or at a preset angle.

[0253] As one of the specific embodiments of the application, please understand in combination with FIG. 21, the cleaning assembly 20 disclosed in the application includes a first cleaning part 203 and a second cleaning part 204, wherein part of the first cleaning part 203 is covered by the cleaning liquid sprayed by the nozzle, and the first cleaning part 203 and the second cleaning part 204 are arranged on both sides of the negative pressure port 230. It should be noted that in the embodiments of the application, the shell 10 includes an upper shell 104 and a lower shell 105, wherein the upper shell 104 and the lower shell 105 are buckled and connected to form the shell 10, and the negative pressure port 230 is formed by the cooperation of the negative pressure port upper shell 1031 and the negative pressure port lower shell 1032.

[0254] The specific structure of the first cleaning part 203 and the second cleaning part 204 is not limited in the embodiments of the present application, and the first cleaning part 203 and the second cleaning part 204 can be provided with the same structure or different structures. For example, the first cleaning part 203 and the second cleaning part 204 can both be a scraper or a rolling brush, or the first cleaning part 203 can be provided with a brush, and the second cleaning part 204 can be provided with a scraper or a scraper knife. In addition, the first cleaning part 203 can be provided with a flexible scraper, and the second cleaning part 204 can be provided with a hard scraper. The present application will not be listed one by one. When the cleaning part includes the first cleaning part 203 and the second cleaning part 204, the first cleaning part 203 and the second cleaning part 204 are respectively arranged on both sides of the negative pressure port 230, and specifically include: the first cleaning part 203 and the second cleaning part 204 can be respectively arranged on the opposite two outer sides of the negative pressure port 230; or the first cleaning part 203 and the second cleaning part 204 can be respectively arranged on the opposite two inner sides of the negative pressure port 230; or the first cleaning part 203 is arranged on the inner side of the negative pressure port 230, and the second cleaning part 204 is arranged on the outer side of the negative pressure port 230; or the first cleaning part 203 is arranged on the outer side of the negative pressure port 230, and the second cleaning part 204 is arranged on the inner side of the negative pressure port 230.

[0255] As a further embodiment of the present application, the positioning part 201 of the cleaning assembly 20 disclosed in the embodiments of the present application is provided with a fixing groove 1032a and / or a fixing convex rib, wherein the cleaning part mounting end of the cleaning assembly is provided with a mounting convex rib 2031 and / or a mounting groove, and the fixing groove 1032a is clamped with the mounting convex rib 2031, and the fixing convex rib is clamped with the mounting groove.

[0256] As a specific embodiment of the present application, the positioning part 201 can be selected as the side plate of the negative pressure port 230, wherein a plurality of fixing grooves 1032a are arranged on the side plate as fixing parts, and the side plate of the negative pressure port 230 is preferably integrally formed with the shell 10. The first cleaning part 203 can be selected as a flexible scraper and arranged on the outer side of the side plate. One end of the flexible scraper is provided with a mounting convex rib 2031 as a mounting end, and the mounting convex rib 2031 is clamped with the above-mentioned fixing groove in an interference fit to realize the fixed connection of the flexible scraper with the shell. The other end of the flexible scraper is used for cleaning the surface of the cleaned object, that is, the cleaning end. The second cleaning part 204 can be selected as a hard scraper, wherein the positioning part 201 further includes a positioning groove formed on the shell 10, and the hard scraper is clamped and fixed in the positioning groove. It should be noted that the flexible scraper and the hard scraper can be arranged side by side or at a preset angle. The person skilled in the art can consider the specific circumstances of the overall arrangement, space, structure, etc. and make specific settings according to the actual situation.

[0257] As another specific embodiment of the present application, the positioning portion 201 can be provided with a side plate of the negative pressure port 230, wherein a plurality of fixing protrusions are arranged on the side plate as fixing members, and the side plate of the negative pressure port 230 is preferably integrally formed with the shell 10. The first cleaning portion 203 can be provided with a flexible scraper arranged on the inner side of the side plate, and one end of the flexible scraper is provided with a mounting groove as a mounting end. The fixing protrusions are in interference fit with the mounting groove to achieve fixed connection between the flexible scraper and the shell. The other end of the flexible scraper is used to clean the surface of the object to be cleaned, i.e., the cleaning end. The second cleaning portion 204 can be provided with a rigid scraper, and the positioning portion 201 further comprises a positioning groove formed on the shell 10, and the rigid scraper is fixedly connected in the positioning groove. It should be noted that the flexible scraper and the rigid scraper can be arranged side by side or at a preset angle. The skilled person can consider the specific circumstances of overall arrangement, space, structure, etc., and make specific settings according to the actual situation.

[0258] As a further embodiment, the height of the protrusion of the mounting protrusion 2031 can be greater than the height of the groove edge of the fixing groove 1032a in the cleaning head disclosed in the embodiments of the present application. In this way, the first cleaning portion 203 and the second cleaning portion 204 can maintain a certain gap under the action of negative pressure due to the support of the upper surface of the protrusion, thereby ensuring the gas flow of the negative pressure port 230. Of course, the height of the protrusion of the fixing protrusion can be greater than the height of the groove edge of the mounting groove in the cleaning head disclosed in the embodiments of the present application. At this time, the first cleaning portion is connected in the negative pressure port. In this way, the first cleaning portion 203 and the second cleaning portion 204 can also maintain a certain gap under the action of negative pressure, thereby ensuring the gas flow of the negative pressure port 230.

[0259] As a further embodiment, the mounting protrusion 2031 is provided with a T-shaped protrusion, and the two sides of the T-shaped protrusion are clamped on the upper surface of the groove edge of the fixing groove 1032a, as shown in FIG. 21. The upper surface of the T-shaped protrusion abuts against the inner surface of the second cleaning portion 204 under high negative pressure, so that the inner surface of the first cleaning portion 203 and the inner surface of the second cleaning portion 204 maintain a certain gap therebetween to ensure the gas flow of the negative pressure port 230.

[0260] Similarly, the fixing protrusion disclosed in the embodiments of the present application is provided with a T-shaped protrusion, and the two sides of the T-shaped protrusion are clamped on the upper surface of the groove side of the mounting groove. The upper surface of the T-shaped protrusion is in abutment with the inner surface of the second cleaning part under high negative pressure, so that a certain gap is maintained between the inner surface of the first cleaning part 203 and the inner surface of the second cleaning part 204, so as to ensure the gas flow of the negative pressure port 230. In addition, according to actual needs, as a specific embodiment of the present application, the inner surface of the first cleaning part 203 and / or the inner surface of the second cleaning part 204 is further provided with a supporting rib, or a supporting point, or a supporting block, etc., so that the first cleaning part 203 and the second cleaning part 204 maintain a certain gap under negative pressure, and the gas flow of the negative pressure port 230 is ensured. That is, the inner surface of the first cleaning part 203 can be provided with a supporting rib, or a supporting point, or a supporting block, etc., the inner surface of the second cleaning part 204 can be provided with a supporting rib, or a supporting point, or a supporting block, etc., or the inner surface of the first cleaning part 203 and the inner surface of the second cleaning part 204 can be provided with a supporting rib, or a supporting point, or a supporting block, etc. It should be explained that the above-mentioned inner surface refers to the two surfaces of the first cleaning part 203 and the second cleaning part 204 that approach each other under negative pressure.

[0261] As a specific embodiment of the present application, the first cleaning part 203 is arranged on the inner side or the outer side of the side plate of the negative pressure port 230 through the mounting protrusion 2031 or the mounting groove, and the second cleaning part 204 can be arranged on the inner side or the outer side of the side plate of the negative pressure port 230 through the mounting protrusion or the mounting groove. The above-mentioned fixing mode can refer to the interference fit clamping described above, which will not be described in detail here. The fixing mode of the positioning side plate, the positioning clamping plate, the positioning groove, the positioning protrusion, the positioning hole and the cleaning part mounting end also refers to the clamping mode described above, which will not be described in detail here.

[0262] As a further embodiment of the present application, the cleaning end of the cleaning assembly 20 disclosed in the present application at least exceeds the negative pressure port by 0.5mm-20mm. In this way, the cleaning end of the cleaning part 202 can maintain a certain distance from the negative pressure port 230, so as to balance the jetting force of the jet port 11 and the suction force of the negative pressure port 230, and ensure that the jetting force of the jet port 11 is not affected by the negative pressure port 230. It should be explained that the exceeding refers to the direction of the cleaning end of the cleaning assembly 20 extending towards the surface of the object to be cleaned, and extending out of the cross section of the negative pressure port 230. In the embodiments provided in the present application, the cleaning part 202 includes at least one of a scraper, a scraper plate, a roller brush, a brush, a scouring pad, and a cleaning ball.

[0263] As a first specific embodiment of the present application, the positioning part 201 is a first positioning side plate 2011 and a second positioning side plate 2012 forming the negative pressure port 230, wherein the first positioning side plate 2011 and the second positioning side plate 2012 are oppositely arranged, and the cleaning part 202 is a scraper, the mounting end of the scraper is clamped and fixed in the negative pressure port 230 through the first positioning side plate 2011 and the second positioning side plate 2012, and the cleaning end of the scraper extends out of the negative pressure port 230 for cleaning the cleaned object.

[0264] As a further embodiment, the width of the scraper in the horizontal direction is preferably less than the width of the negative pressure port 230, so that the scraper is contained in the negative pressure port, and thus the gas circulation is facilitated.

[0265] As a third specific embodiment of the present application, the positioning part 201 is a first positioning side plate 2011 and a second positioning side plate 2012 oppositely arranged forming the negative pressure port 230, and the cleaning part 202 includes a mounting end and a cleaning end, wherein the mounting end is a mounting plate, and the cleaning end includes a cleaning plate and a scouring pad arranged on the cleaning plate, the mounting plate of the cleaning part 202 is clamped and fixed in the negative pressure port 230 through the first positioning side plate 2011 and the second positioning side plate 2012, and the cleaning plate and the scouring pad arranged on the cleaning plate extend out of the negative pressure port 230 for cleaning the cleaned object. As a further embodiment, the width of the cleaning plate is preferably less than the width of the negative pressure port 230, so that the gas circulation is facilitated.

[0266] As a fourth specific embodiment of the present application, the positioning part 201 is two positioning holes fixed on the shell 10, and the cleaning part 202 is a rolling brush, wherein the rolling brush includes a mounting end and a cleaning end, the mounting end is a rolling shaft penetrating through the cleaning end, the two ends of the rolling shaft are connected with the two positioning holes one by one, and the cleaning end extends out of the negative pressure port 230 for cleaning the cleaned object.

[0267] As a fifth specific embodiment of the present application, the positioning part 201 is a first positioning side plate 2011 and a second positioning side plate 2012 oppositely arranged to form the negative pressure port 230, and the cleaning part 202 is a brush, wherein the brush comprises a mounting end and a cleaning end, the cleaning end is bonded to the mounting end, the mounting end is clamped and fixed in the negative pressure port 230 through the first positioning side plate 2011 and the second positioning side plate 2012, and the cleaning end extends out of the negative pressure port 230 for cleaning the cleaned object.

[0268] As a sixth specific embodiment of the present application, the positioning part 201 is a first positioning side plate 2011 and a second positioning side plate 2012 oppositely arranged to form the negative pressure port 230, and the cleaning part 202 comprises a clamping plate and cleaning balls, wherein the clamping plate is clamped in the negative pressure port 230, a part of the cleaning balls are clamped by the clamping plate, and a part of the cleaning balls are used as the cleaning end for cleaning the cleaned object. When the cleaning part 202 is a scraper or a scraping plate, the cleaning of glass and the like can be realized; when the cleaning part 202 is a rolling brush or a brush, the cleaning of cloth and the like can be realized; when the cleaning part 202 is a scouring pad or a cleaning ball, the cleaning of the surfaces to be cleaned of pots, bowls, cooktops and the like can be realized. The specific number of the cleaning assembly 20 is not limited in the embodiments of the present application, and the cleaning assembly 20 can be one, two, three or more, as long as the structure meets the use requirements of the present application, which is within the protection scope of the present application. In the embodiments provided in the present application, the cleaning assembly 20 is preferably two or more, and each cleaning assembly 20 is arranged in parallel. It is worth noting that the cleaning end of the cleaning assembly 20 can be a brush, a convex point or the like, as long as it is parallel to the length direction of the negative pressure port 230.

[0269] In the embodiments provided in the present application, the nozzle 11 is arranged adjacent to the negative pressure port 230, at least one cleaning liquid injection hole 1021 is arranged in the nozzle 11, and the injection direction of the cleaning liquid injection hole 1021 is obliquely arranged towards the cleaning assembly 20. In this way, the cleaning liquid injection hole 1021 can directly inject at least part of the cleaning liquid to the cleaning assembly 20 to achieve the purpose of self-cleaning.

[0270] As a further embodiment, the nozzle 11 disclosed in the embodiments of the present application comprises at least one cleaning liquid spraying pipe 102, wherein the cleaning liquid spraying pipe 102 is provided with a plurality of cleaning liquid spraying holes 1021. The cleaning liquid spraying pipe 102 is arranged along the length direction of the nozzle 11, and the cleaning liquid spraying holes 1021 are preferably uniformly distributed on the cleaning liquid spraying pipe 102 along the length direction of the cleaning liquid spraying pipe 102. In the embodiment, the cleaning liquid is preferably high-pressure steam. The steam sprayed from at least one of the plurality of cleaning liquid spraying holes 1021 is inclined to the cleaning end, so that the steam is sprayed onto the cleaning end. The steam sprayed from the plurality of cleaning liquid spraying holes 1021 can be parallel to the cleaning end, or can form a certain spraying angle, part of which is sprayed to the cleaning end and part of which is sprayed to the surface to be cleaned. The embodiments of the present application do not limit the specific type of cleaning liquid, wherein the cleaning liquid comprises at least one of water vapor, water, and a solution containing a cleaning agent, which can be selected according to actual needs by those skilled in the art.

[0271] It is worth noting that when water vapor is used as the cleaning liquid, the water vapor can accelerate the dissolution of stains at high temperature while being directly sprayed, which can further improve the cleaning effect. When water or a solution containing a cleaning agent is used as the cleaning liquid, the spraying pressure is increased to improve the spraying force, which is good for cleaning larger volume of stains.

[0272] In an embodiment, the cleaning head is detachably connected to the main machine, or at least part of the cleaning assembly 20 is detachably connected to the main machine.

[0273] In an embodiment, a liquid sensor for detecting liquid is arranged on the connecting pipeline between the liquid storage tank and the second water pump, and a liquid level sensor for detecting the liquid level in the sewage tank is arranged in the sewage tank. The liquid sensor and the liquid level sensor are electrically connected to the controller, and the controller can control the operation of the spraying unit or the suction unit according to the liquid or the liquid level detected by the liquid level sensor or the liquid level sensor. Further, a steam generator is arranged between the second water pump and the nozzle, which generates high-temperature and high-pressure water vapor from the clean water pumped by the second water pump as the cleaning liquid, and sprays the cleaning liquid to the surface of the object to be cleaned and the surface of the cleaning end of the cleaning assembly through the cleaning liquid spraying holes, so as to realize self-cleaning of the cleaning assembly.

[0274] The cleaning equipment is generally provided with a handheld cleaning head, and dust removal, cleaning and other work can be performed on the surface to be cleaned by using the handheld cleaning head. The handheld cleaning head generally includes a nozzle main body and a dust cover detachably connected to the nozzle main body, and a dust collection channel is formed between the nozzle main body and the dust cover. In order to ensure the smoothness of the dust collection channel, the dust cover needs to be regularly detached from the nozzle main body for cleaning. In the related art, when the dust cover is detached, the nozzle main body and the handle are also separated, and therefore when the dust cover is reassembled later, the nozzle main body and the handle need to be reconnected, which increases the complexity of subsequent operations and affects the assembly and disassembly efficiency. Based on this, the cleaning equipment provided by an embodiment of the present application can solve the above technical problems, and the cleaning unit in the cleaning equipment includes a cleaning head, which will be described in detail below.

[0275] In combination with FIGS. 22A to 24 and FIGS. 27 to 31, the cleaning unit 1 provided by an embodiment of the present application includes a cleaning head 1a, the cleaning head 1a includes a nozzle main body 100, a dust cover 200 and a handle 7, the nozzle main body 100 is provided with a first cooperation part 120 and a first knob part 110; the dust cover 200 is provided with a second cooperation part 210; the handle 7 is provided with a first clamping part 310; wherein the first knob part 110 is in a locking position, the first knob part 110 is connected to the second cooperation part 210, and the first clamping part 310 can be connected to the first cooperation part 120 and the second cooperation part 210 in sequence, so as to connect the nozzle main body 100 and the dust cover 200 to the handle 7; the first knob part 110 is configured to be operable to be actuated, so as to move from the locking position to a first unlocking position; the first knob part 110 in the first unlocking position can abut against the first clamping part 310, so as to disconnect the first clamping part 310 from the second cooperation part 210, and the first clamping part 310 remains connected to the first cooperation part 120.

[0276] When it is necessary to remove the dust cover 200, the first knob portion 110 is pushed in the direction of the arrow shown in FIG. 22B, so that the first knob portion 110 presses against the first clamping portion 310. At this time, the dust cover 200 can be pushed in the direction of the arrow shown in FIG. 22B, and the dust cover 200 acts on the first knob portion 110, so that the first knob portion 110 and the first clamping portion 310 can be driven to move downward in a direction perpendicular to the arrow, so that the first clamping portion 310 is disconnected from the second matching portion 210 on the dust cover 200, and the first clamping portion 310 and the first matching portion 120 remain connected, that is, the handle 7 and the spray head body 100 remain connected. In this way, after the dust cover 200 is removed, the handle 7 and the spray head body 100 do not need to be reconnected, and the dust cover 200 can be directly assembled after cleaning, avoiding the trouble of reconnecting the handle 7 after the spray head body 100 is disassembled, simplifying the operation process, reducing the complexity of subsequent operations, and improving the disassembly efficiency. At the same time, since the handle 7 and the spray head body 100 do not need to be frequently connected after the dust cover 200 is disassembled, the wear risk between the handle 7 and the spray head body 100 is significantly reduced, which helps to prolong the service life of the handle 7 and the spray head body 100, thereby ensuring the use stability and use reliability of the cleaning head. In other embodiments, the first knob portion 110 can be pushed in the direction of the arrow shown in FIG. 22B, so that the first knob portion 110 rotates clockwise in the view shown in FIG. 22B, thereby pressing against the first clamping portion 310 and driving the first clamping portion 310 to move downward, so that the first clamping portion 310 is disconnected from the second matching portion 210.

[0277] As shown in FIG. 22B and FIG. 31, it can be understood that when the first knob portion 110 is in the locked position, the first knob portion 110 protrudes from the outer surfaces of the dust cover 200 and the handle 7, facilitating the user to push the first knob portion 110. In some embodiments, the first clamping portion 310 is provided with a protruding clamping block, and the first matching portion 120 and the second matching portion 210 can be clamping grooves for clamping the clamping block. In some embodiments, the first clamping portion 310 can further be provided with a containing groove, and when the spray head body 100 is connected to the handle 7, part of the first knob portion 110 is located in the containing groove.

[0278] Referring to FIG. 22B and FIGS. 29-33, in an embodiment, the sidewall of the second engaging portion 210 is configured with a guide slope 211, and the first knob portion 110 is configured with a matching slope 111 for slidingly engaging with the guide slope 211. In this way, when the dust cover 200 is pushed in the direction of the arrow shown in FIG. 22B, the movement of the dust cover 200 in the direction of the arrow is converted into the downward movement of the first knob portion 110 in a direction perpendicular to the arrow by the sliding engagement of the guide slope 211 on the dust cover 200 with the matching slope 111 of the first knob portion 110, so that the first knob portion 110 drives the first clamping portion 310 to move downward, and the first clamping portion 310 exits the first engaging portion 120. At the same time, when the dust cover 200 is installed, the installation direction of the dust cover 200 is opposite to the direction of the arrow shown in FIG. 22B, and the movement of the dust cover 200 can be guided by the sliding engagement of the guide slope 211 and the matching slope 111, so that the first knob portion 110 is arranged in the second engaging portion 210, and the first clamping portion 310 is arranged in the second engaging portion 210, thereby realizing the connection of the dust cover 200, the nozzle body 100 and the handle 7.

[0279] Referring to FIG. 29, in some embodiments, the first knob portion 110 is provided with a first limiting protrusion 112, and when the first knob portion 110 is in the locked position, the first limiting protrusion 112 blocks the first knob portion 110 from disengaging from the second engaging portion 210. In this way, before the dust cover 200 is removed, the first knob portion 110 needs to be pushed in the direction of the arrow shown in FIG. 29 first, so that the first knob portion 110 is in the unlocked position, that is, the first limiting protrusion 112 is no longer directly above the surface of the dust cover 200, and the first limiting protrusion 112 will not interfere with the movement of the dust cover 200, thereby facilitating the removal of the dust cover 200. That is, by providing the first limiting protrusion 112, the connection reliability of the first knob portion 110 and the second engaging portion 210 can be improved, that is, the connection reliability of the nozzle body 100 and the dust cover 200 can be improved, and the possibility of disassembly of the dust cover 200 due to misoperation can be reduced.

[0280] Referring to FIG. 27, in an embodiment, the outer surface of the dust cover 200 is configured with a protruding removal portion 220; when the first knob portion 110 is in the first unlocked position, the removal portion 220 is configured to be operable to push, so as to disconnect the dust cover 200 from the nozzle body 100. As shown in FIG. 27, the pushing direction of the removal portion 220 is indicated by an arrow. By providing the protruding removal portion 220 on the dust cover 200, a force application position is provided for the user, which facilitates the user's fingers to act on the removal portion 220 to push the dust cover 200 to move, so that the first clamping portion 310 is separated from the second engaging portion 210, that is, the disassembly operation of the dust cover 200 is facilitated, and hand fatigue is reduced.

[0281] Referring to FIG. 27, in an embodiment, the removal portion 220 protrudes from the first knob portion 110. With this design, on the one hand, the removal portion 220 can shield the first knob portion 110 to some extent, preventing the user from accidentally touching the first knob portion 110 and causing the dust cover 200 to be accidentally detached; on the other hand, it can help the user to quickly and accurately distinguish the removal portion 220 from the first knob portion 110, improving the disassembly efficiency.

[0282] Referring to FIG. 31, in some embodiments, the pushing surface 221 of the removal portion 220 is arranged obliquely relative to the outer surface of the dust cover 200. That is, the pushing surface 221 is a slope, which on the one hand, through the slope design, can intuitively guide the user to apply force in the correct direction, reducing the possibility of misoperation, and the slope design allows the user's fingers to be naturally placed on the removal portion 220, providing a more ergonomic operating angle; on the other hand, the slope provides a larger contact area, which can evenly distribute the pressure of the force application point, making the disassembly process more labor-saving.

[0283] Referring to FIG. 28, in an embodiment, one of the dust cover 200 and the nozzle body 100 is configured with a positioning piece 140, and the other is configured with a positioning hole 240 for clamping with the positioning piece 140. For example, in the embodiment shown in the drawing, the positioning piece 140 is arranged at the end of the nozzle body 100 away from the handle 7, and the positioning hole 240 is arranged at the end of the dust cover 200 away from the handle 7. Through the clamping cooperation of the positioning piece 140 and the positioning hole 240, the connection effect of the dust cover 200 and the nozzle body 100 is further enhanced, ensuring the stable connection of the two and improving the use reliability of the cleaning device. In other embodiments, the positions of the positioning piece 140 and the positioning hole 240 can be interchanged. It can be understood that the extension direction of the positioning piece 140 and the positioning hole 240 is parallel to the disassembly direction of the dust cover 200.

[0284] In an embodiment, a resilient member (not shown in the figure) is connected between the handle 7 and the first clamping portion 310. It can be understood that when the first knob portion 110 is in the locked position, that is, the first clamping portion 310 is not subjected to external force, the resilient member is in a natural state. When the user acts on the first knob portion 110 to cause the first clamping portion 310 to be disconnected from the second cooperating portion 210, the resilient member is in a deformed state. By providing the resilient member, a reset clamping force is provided for the first clamping portion 310, so that after the external force is removed, the first clamping portion 310 can automatically reset to be connected with at least one of the first cooperating portion 120 and the second cooperating portion 210, ensuring the connection reliability of the handle 7, the nozzle body 100 and the dust cover 200. In some embodiments, the resilient member can be a spring.

[0285] Referring to FIGS. 22B and 23B, in an embodiment, the first clamping portion 310 includes a fixed segment 311, a clamping segment 313, and an unlocking segment 314. The fixed segment 311 is connected to the handle 7, and the clamping segment 313 is configured to be connected to the first cooperating portion 120 and the second cooperating portion 210. One of the clamping segment 313 and the unlocking segment 314 is connected to the elastic member. In response to an unlocking operation of the unlocking segment 314, the clamping segment 313 is capable of moving to a second unlocking position to be disconnected from the first cooperating portion 120. In the embodiment shown in the drawings, the elastic member is connected to the unlocking segment 314, i.e., the elastic member is arranged below the unlocking segment 314. In other embodiments, the elastic member can also be connected to the clamping segment 313, i.e., the elastic member is arranged below the clamping segment 313. It can be understood that the fixed segment 311 is always arranged at a fixed position relative to the handle 7. By arranging the unlocking segment 314, a user is provided with a force application position, which facilitates the user to act on the unlocking segment 314 to make the clamping segment 313 move downward to exit the first cooperating portion 120, thereby disconnecting the spray head body 100 and the handle 7.

[0286] In some embodiments, when the user acts on the unlocking segment 314 to make the clamping segment 313 move to the second unlocking position to be disconnected from the first cooperating portion 120, the first knob portion 110 can still be clamped in the second cooperating portion 210 of the dust cover 200, i.e., the dust cover 200 and the spray head body 100 still have a certain connection effect. In this way, when the spray head body 100 and the handle 7 are disconnected, the dust cover 200 and the spray head body 100 will not be scattered, thereby reducing the risk of damage caused by accidental falling of the dust cover 200 or the spray head body 100.

[0287] Referring to FIGS. 22B and 23B, in an embodiment, the clamping segment 313 is located between the fixed segment 311 and the unlocking segment 314, and is capable of being disconnected from the first cooperating portion 120 in response to a pressing operation of the unlocking segment 314. That is, the clamping segment 313 and the unlocking segment 314 are located on the same side of the fixed segment 311. In this way, when the user presses the unlocking segment 314 downward, the clamping segment 313 is driven to move downward and be disconnected from the first cooperating portion 120. If the first clamping portion 310 is regarded as a lever structure, the fixed segment 311 corresponds to the fulcrum end of the lever structure, and the unlocking segment 314 and the clamping segment 313 correspond to the power end and the resistance end, respectively. Since the clamping segment 313 is located between the fixed segment 311 and the unlocking segment 314, i.e., the resistance arm is smaller than the power arm, the user only needs to apply a small force to the unlocking segment 314 to generate a large output force to the clamping segment 313, thereby making the disconnection between the handle 7 and the spray head body 100 easier and reducing the fatigue of the user. In other embodiments, the clamping segment and the unlocking segment can also be located on the two sides of the fixed segment, respectively. In this way, by lifting the unlocking segment upward, the clamping segment is driven to move downward to be disconnected from the first cooperating portion.

[0288] Referring to FIGS. 22B and 23B, in an embodiment, at least one of the handle 7 and the unlocking section 314 is provided with a first fixing part 333 for fixing the elastic member. In the embodiment shown in the drawings, the handle 7 and the unlocking section 314 are both provided with the first fixing part 333, which can be a protruding limiting column or a recessed limiting groove. For example, in the embodiment shown in the drawings, the unlocking section 314 is provided with the limiting groove, and the handle 7 is provided with the limiting column, one end of the elastic member is accommodated in the limiting groove, and the other end is sleeved on the limiting column. By providing the first fixing part 333 to limit the elastic member, the deformation direction of the elastic member is effectively constrained, thereby ensuring the reliability of the direction of the restoring force exerted by the elastic member. In other embodiments, the first fixing part 333 can be provided only on one of the handle 7 and the unlocking section 314 to limit one end of the elastic member, and the other end of the elastic member can be welded to the other one of the handle 7 and the unlocking section 314. The specific arrangement can be set according to actual needs.

[0289] Referring to FIGS. 22B and 23B, in some embodiments, the buckle section 313 is located between the fixing section 311 and the unlocking section 314, and the first clamping part 310 further includes a bending section 312 located between the fixing section 311 and the buckle section 313 and extending from the fixing section 311 in a direction close to the elastic member. The bending section 312 can provide a certain elastic deformation capability, so that the buckle section 313 can be finely adjusted in position as needed during insertion and removal, to ensure tight cooperation with the first cooperation part 120 and the second cooperation part 210; at the same time, the bending section 312 can also disperse the force applied on the buckle section 313, to avoid stress concentration. Further, due to the better elasticity and recovery capability provided by the bending section 312, the buckle section 313 is not prone to permanent deformation or breakage during repeated use, and has high fatigue resistance. For example, in the embodiment shown in the drawings, the bending section 312 is in the shape of U. The unlocking section 314 and the buckle section 313 are designed as protruding clamping blocks, and the shape and size of the clamping blocks can be set according to actual needs. For example, the unlocking section 314 has a protruding height greater than that of the buckle section 313, and the unlocking section 314 and the buckle section 313 form a containing groove for containing the first knob part 110.

[0290] Referring to FIG. 23B, in some embodiments, the handle 7 is provided with a support structure 330 for supporting the first clamping part 310. By providing the first clamping part 310 with an additional support point through the support structure 330, the risk of loosening due to vibration or external force is reduced, ensuring that the connection between the first clamping part 310 and the nozzle body 100 and the dust cover 200 is more secure; at the same time, the force on the first clamping part 310 can be more evenly distributed on the entire support structure 330, reducing the phenomenon of local stress concentration, thereby reducing the risk of wear and fatigue damage.

[0291] Referring to FIG. 23B, in an embodiment, the support structure 330 includes a support plate 331 and a support column 332 protruding from the support plate 331. The first fixing part 333 provided on the handle 7 can be located on the support plate 331, and the fixing section 311 can be connected to the support column 332. In some embodiments, at least one of the support column 332 and the fixing section 311 is configured with a connecting hole 3111, and the other is connected with a connecting piece for plug-in cooperation with the connecting hole 3111. For example, in the embodiment shown in the drawings, both the support column 332 and the fixing section 311 are configured with connecting holes 3111, and the connecting piece is inserted into the connecting holes 3111 of both, achieving the fixation of the support column 332 and the first clamping part 310. For example, the connecting holes 3111 are pin holes, and the connecting piece is a pin; or the connecting holes 3111 are screw holes, and the connecting piece is a screw, etc. In other embodiments, one of the support column 332 and the fixing section 311 can be configured with a connecting hole 3111, and the other can be configured with a connecting piece for plug-in cooperation with the connecting hole 3111.

[0292] Referring to FIGS. 22B to 25, in an embodiment, the nozzle body 100 is provided with a second marking part 191, and the handle 7 is provided with a first acquisition part 6111 for identifying the second marking part 191. Referring to FIGS. 22B and 23B, in an embodiment, one of the second marking part 191 and the first acquisition part 6111 is configured as a male plug, and the other is configured as a female plug for connecting with the male plug. For example, the second marking part 191 is a male plug, and the first acquisition part 6111 is a female plug; of course, the second marking part 191 can also be a female plug, and the first acquisition part 6111 can be a male plug. In some embodiments, the male plug can be a PIN pin, and the female plug can be a PIN pin connecting hole 3111. When the nozzle body 100 is connected to the handle 7, the PIN pin of the nozzle body 100 is connected to the PIN pin connecting hole 3111 on the handle 7, and the information on the second marking part 191 is read through the physical contact of the two, achieving the transmission of signals.

[0293] In other embodiments, the second marking part 191 can be a two-dimensional code, NFC, RFID, or a short-distance communication module such as Bluetooth, and the first acquisition part 6111 can be a reader or a receiver. For example, when the second marking part 191 is a two-dimensional code, the first acquisition part 6111 can use a camera or a code scanner as a reader to read information and transmit signals; when the second marking part 191 is NFC, the first acquisition part 6111 can use a card reader as a reader; when the second marking part 191 is RFID, the first acquisition part 6111 can use an RFID reader / writer as a reader; and when the second marking part 191 is Bluetooth, the first acquisition part 6111 can use a Bluetooth receiver to read information and transmit signals.

[0294] Referring to FIG. 22B or FIG. 34B, in an embodiment, the nozzle body 100 is configured with a first dirt suction channel 130, and a portion of the first dirt suction channel 130 is arranged obliquely relative to the outer surface of the nozzle body 100. By arranging a portion of the first dirt suction channel 130 obliquely, the sharp turning of air in the channel can be reduced, unnecessary vibration and noise can be avoided, and the friction and turbulence of air flow can be reduced. At the same time, gravity can be used to help some heavier particles slide down along the channel, so that the inhaled air and particles can pass through more smoothly, and the possibility of particle accumulation in the channel is reduced. Further, the risk of backflow of inhaled particles to the cleaned surface due to changes in airflow is reduced, pollution of the cleaned surface is prevented, and a more thorough cleaning effect is ensured. For example, in the embodiment shown in the drawings, the first dirt suction channel 130 is in the shape of an inclined L.

[0295] Referring to FIG. 22B or FIG. 34B, in an embodiment, the dust cover 200 is configured with a negative pressure port 230 (i.e., the suction port in the foregoing embodiment), and after the nozzle body 100 and the dust cover 200 are docked, a portion of the first dirt suction channel 130 is formed between them and communicates with the negative pressure port 230. The flow area of the negative pressure port 230 is smaller than the flow area of the first dirt suction channel 130. When the gas flow is constant, the flow area is inversely proportional to the fluid velocity. By setting the flow area of the negative pressure port 230 to be smaller than the flow area of the first dirt suction channel 130, the flow rate at the negative pressure port 230 can be increased, i.e., a stronger negative pressure area can be formed at the negative pressure port 230, which helps to quickly suck in the surrounding dust and particles, improving the cleaning efficiency. At the same time, the problem of backflow of sewage from the negative pressure port 230 to the cleaned surface can be reduced, and pollution of the cleaned surface is prevented. In some embodiments, the flow area of the negative pressure port 230 is less than 20% of the flow area of the first dirt suction channel 130.

[0296] Referring to FIGS. 34A-25, in an embodiment, the nozzle body 100 has an opening 180, and the edge of the outer periphery of the nozzle body 100 near the opening 180 is configured as an air inlet 170. In this way, air can enter the system from multiple directions, increasing the inlet area of the airflow and facilitating the collection of surrounding dust and debris into the negative pressure port 230, expanding the cleaning range and preventing secondary pollution. It can also disperse airflow pressure, reduce local resistance, and thus improve overall suction efficiency.

[0297] Referring to FIGS. 34B-36, in some embodiments, the nozzle body 100 has an opening 180, and the opening 180 is provided with a brush seat 182, and the brush seat 182 is installed with a plurality of brush hairs 181, which protrude out of the opening 180 in a direction away from the handle 7, and the protruding length of the brush hairs 181 is 1-3 mm. In some embodiments, the brush seat 182 is provided with a plurality of brush mounting holes 185, and each brush mounting hole 185 is installed with a brush hair 181. The protruding brush hairs 181 can better contact and penetrate into the texture or gap of the surface to be cleaned, such as carpet fibers, floor joints, etc., and remove stubborn stains and dust through physical friction, improving cleaning effect; moreover, the brush hairs 181 can help disperse the airflow, making it more evenly cover the entire cleaning area and improve cleaning efficiency. Further, the protruding brush hairs 181 can have a certain gap between the negative pressure port 230 and the surface to be cleaned, i.e., a certain air inlet amount, so that additional air inlets 170 can be opened according to actual needs, or no additional air inlets 170 are provided.

[0298] In some embodiments, the length of the brush hairs 181 protruding relative to the nozzle body 100 can be 1 mm. In some embodiments, the length of the brush hairs 181 protruding relative to the nozzle body 100 can be 2.5 mm. In some embodiments, the length of the brush hairs 181 protruding relative to the nozzle body 100 can be 3 mm. In other embodiments, the length of the brush hairs 181 protruding relative to the nozzle body 100 can also be other values, which are not listed here. Brush hairs 181 of different lengths can adapt to different shapes and materials of the surface to be cleaned, ensuring effective cleaning on various surfaces to be cleaned without damaging their appearance.

[0299] Referring to FIG. 22B and FIGS. 34B-36, in some embodiments, the spray head body 100 has an opening 180 in which a brush seat 182 is disposed; the brush seat 182 is provided with bristles 181, steam injection holes 183 (i.e., cleaning liquid injection holes), and a dirt suction port 184 (i.e., the suction port of the foregoing embodiments, which can include a negative pressure port and a dirt suction port). The steam injection holes 183 are directly disposed on the brush seat 182, i.e., on the spray head body 100, so that after the spray head body 100 is connected to the handle 7, only the sealing effect between the first steam channel 150 and the second steam channel 340 needs to be considered, which can reduce the sealing positions and sealing costs. The high-temperature steam released through the steam injection holes 183 softens the stains, and the bristles 181 located behind them further break down and remove stubborn stains through physical friction. Then, the dirt suction port 184 can quickly suck loose dirt into the cleaning device, forming an effective cleaning cycle. By providing a dedicated dirt suction port 184 on the spray head body 100, combined with the negative pressure port 230 on the dust cover 200, suction can be generated at different positions, so that the cleaning device can simultaneously suck dirt from multiple directions, ensuring more comprehensive cleaning coverage, and also allowing air flow to be more evenly distributed in the cleaning area, avoiding over-cleaning or damage to the surface due to excessive air flow concentration in certain areas.

[0300] Referring to FIG. 22B and FIGS. 34B-36, it can be understood that the steam injection holes 183 communicate with the first steam channel 150 of the spray head body 100, and the dirt suction port 184 communicates with the first dirt suction channel 130 of the spray head body 100; when the spray head body 100 is in a connected state with the handle 7, the first steam channel 150 communicates with the second steam channel 340 (i.e., the first cleaning channel of the foregoing embodiments) of the handle 7; the first dirt suction channel 130 communicates with the second dirt suction channel 350 (i.e., the first dirt channel of the foregoing embodiments) of the handle 7. In this way, the cleaning liquid provided by the liquid injection unit of the cleaning device can pass through the second steam channel 340 and the first steam channel 150 in turn, and then be injected to the surface being cleaned through the steam injection holes 183; the cleaned dirt enters the first dirt suction channel 130 through the negative pressure port 230 and the dirt suction port 184 under the action of negative pressure suction, and then enters the sewage collection unit of the cleaning device through the second dirt suction channel 350. Among them, the flow area of the dirt suction port 184 is smaller than the fluid area of the first dirt suction channel 130. The smaller flow area of the dirt suction port 184 can reduce the risk of sewage backflow to the surface being cleaned, preventing pollution of the fabric surface. At the same time, for particularly dirty or difficult-to-clean areas, the dirt suction port 184 with a smaller flow area can provide stronger local suction, helping to more effectively remove stubborn stains or large pieces of garbage.

[0301] Referring to FIG. 22B, FIG. 34B to FIG. 36, in some embodiments, the bristles 181 are located between the steam jet hole 183 and the dirt suction port 184. By arranging the bristles 181 between the steam jet hole 183 and the dirt suction port 184, the bristles 181 can help guide the steam flow jetted from the steam jet hole 183 to a specific area, ensuring that the cleaning medium can directly act on the place that needs to be cleaned. At the same time, after the cleaning liquid is sprayed to the surface to be cleaned, it flows through the bristles 181 and then enters the dirt suction port 184, so as to carry away the dirt on the bristles 181, thereby achieving self-cleaning of the bristles 181, reducing the possibility that the dirt on the bristles 181 affects the subsequent cleaning effect, and the bristles 181 can help speed up the evaporation of moisture after steam cleaning, accelerating the drying speed.

[0302] Since the conventional cleaning device capable of realizing the functions of various cleaning products has many assembled components and cleaning assemblies, it not only occupies space, but also requires the user to set a cleaning scene on the main machine in advance and select a suitable cleaning head for installation before starting cleaning after selecting the working mode, and the use process is relatively cumbersome. Since the cleaning scene and the cleaning head are selected and set by artificial, when the installed cleaning head does not match the set cleaning scene, the device will work with unsuitable cleaning parameters, which not only affects the cleaning effect, but also affects the performance and service life of the cleaning device.

[0303] Therefore, the present application provides a cleaning control method applied to a control unit of a cleaning device. The cleaning device can be any of the cleaning devices described in the foregoing embodiments, and the control unit can be detachably connected with any cleaning head through a handle. The method comprises: the control unit acquires type information of the connected cleaning head in response to the connection with any cleaning head; and determines a target mode in response to a mode selection instruction of a cleaning mode; and determines cleaning parameters according to the type information of the cleaning head and the target mode, and performs a cleaning operation. The cleaning mode is the target flow and target power corresponding to different cleaning heads in the cleaning mode. The present application only needs to replace the corresponding cleaning head in different cleaning scenes, automatically identifies the type of the cleaning head, and automatically matches the required cleaning parameters based on the type of the cleaning head and the working mode selected by the user, to perform cleaning in different scenes. Therefore, the user no longer needs to additionally set the cleaning scene, reducing the step of manually selecting the cleaning mode by the user, simplifying the use process, and avoiding the problem that the cleaning effect is affected and the performance and service life of the cleaning device are affected due to the mismatch between the installed cleaning head and the set cleaning scene, thereby ensuring the cleaning effect and improving the performance and service life of the cleaning device.

[0304] In one embodiment, the method can comprise the following steps: step 102, in response to the connection of any cleaning head, obtaining the type information of the connected cleaning head. The cleaning head is a specific cleaning component for cleaning the object to be cleaned. In this embodiment, different types of cleaning heads can be used for cleaning objects in different scenarios, so that the cleaning device can realize multiple cleaning functions. Among them, the cleaning head by type can include but is not limited to a steam cloth cleaning head, a steam window cleaning head, a tableware cleaning head, a kitchen stove cleaning head, a kitchen appliance (such as an oven, a microwave oven, a refrigerator, etc.) cleaning head, a shoe cleaning head, a clothes cleaning head, a floor cleaning head, a bathroom cleaning head, a car cleaning head, etc. In order to facilitate the replacement of different types of cleaning heads for cleaning objects in different scenarios, the control unit of the cleaning device in this embodiment can be detachably connected with any cleaning head. In this embodiment, when any cleaning head is detachably connected to the control unit, the control unit can respond to the connection of the cleaning head and obtain the type information of the connected cleaning head based on the connection, so as to perform cleaning control through the subsequent steps.

[0305] Step 104, in response to the mode selection instruction of the cleaning mode, determining the target mode. Among them, the cleaning mode of the cleaning device can include multiple modes, such as steam cleaning mode and dust suction drying mode, etc. In the steam cleaning mode, the cleaning fluid generating device and the vacuum recovery device work at the same time; in the dust suction drying mode, the cleaning fluid generating device does not work, and the vacuum recovery device works. In this embodiment, the user can select different modes according to actual needs, so as to realize the switching of the cleaning and dust suction drying modes, so as to realize the cleaning work in different modes. Based on this, the control unit can also respond to the mode selection instruction of the cleaning mode by the user and determine the target mode. Among them, the target mode refers to the specific mode selected by the user for cleaning, such as steam cleaning mode or dust suction drying mode, etc.

[0306] Step 106, determining the cleaning parameter according to the type information of the cleaning head and the target mode, and performing the cleaning operation. Among them, the cleaning parameter can be the specific parameter configuration of the cleaning device in the cleaning process. The cleaning parameter includes but is not limited to cleaning temperature, throughput, power, etc. It can be understood that for the same type of cleaning head, the cleaning parameters in different cleaning modes can be different; or for different types of cleaning heads, the cleaning parameters in the same cleaning mode can also be different. Therefore, in this embodiment, the control unit can determine the matched cleaning parameter according to the type information of the cleaning head obtained in the above steps and the determined target mode, and then perform the cleaning operation.

[0307] In the above cleaning control method, the control unit obtains the type information of the connected cleaning head in response to the connection with any cleaning head, and determines the target mode in response to the mode selection instruction of the cleaning mode, so as to determine the cleaning parameter according to the type information of the cleaning head and the target mode, and perform the cleaning operation. It can automatically identify the type of the cleaning head by only replacing the corresponding cleaning head in different cleaning scenes, and automatically match the required cleaning parameter based on the type of the cleaning head and the cleaning mode selected by the user, to perform cleaning in different scenes. Therefore, the user does not need to additionally set the cleaning scene, which not only simplifies the use process, but also avoids the problem that the cleaning effect, performance and service life of the cleaning equipment are affected due to the mismatch between the cleaning head installed by the user and the set cleaning scene, so as to ensure the cleaning effect and improve the performance and service life of the cleaning equipment.

[0308] In an embodiment, each cleaning head can have a corresponding type identifier; then as shown in FIG. 38, in step 102, the type information of the connected cleaning head is obtained in response to the connection with any cleaning head. Specifically, it can include:

[0309] In step 202, the type identifier of the connected cleaning head is obtained in response to the connection with any cleaning head. The type identifier can be a unique mark or symbol for representing the type of the cleaning head. Since each cleaning head can have a corresponding type identifier, when the control unit is connected with any cleaning head, the type identifier of the connected cleaning head can be obtained. Wherein, the control unit can respond to the physical connection with any cleaning head and establish a communication connection with the corresponding cleaning head, so as to obtain the type identifier of the connected cleaning head based on the communication connection. Wherein, the communication connection can include but is not limited to at least one of radio frequency communication, optical identification communication and serial communication.

[0310] In one scenario, taking the serial communication based on Pin as an example, the control unit can have a male Pin, and the cleaning head can have a female Pin, and the arrangement and combination of the female Pin on the cleaning head of different types are different, that is, different arrangement and combination of the female Pin are used to represent different type identifiers. As shown in FIG. 39, taking five male Pins and five female Pins as an example, one male Pin and one female Pin are used for grounding, and different arrangement and combination of the other four female Pins on the cleaning head can represent different type identifiers. As shown in FIG. 40, for example, for the arrangement and combination "0001" of the female Pins on a certain cleaning head (where "0" represents the corresponding Pin as low level, and "1" represents the corresponding Pin as high level), it represents the specific type identifier of the corresponding cleaning head, such as "type 1", which is used to uniquely determine the type of the cleaning head, such as fabric cleaning head or tableware cleaning head.

[0311] When any cleaning head is physically connected with the control unit (e.g. the female head pin of a cleaning head is plugged into the male head pin of the control unit), the control unit can respond to the physical connection and establish a serial communication connection based on the connected pins and the corresponding cleaning head. Since the pins on the cleaning head have different arrangement combinations, and different arrangement combinations represent different type identifiers, the control unit can also determine the type identifier of the connected cleaning head based on the different arrangement combinations of the pins on the connected cleaning head and the corresponding serial communication.

[0312] In another scenario, taking the NFC (Near Field Communication)-based radio frequency communication as an example of the communication connection mode, the control unit can generate a radio frequency field for NFC communication, and the cleaning head can have an NFC tag for recording the corresponding type identifier, and the type identifiers recorded by the NFC tags on cleaning heads of different types are different. Therefore, when any cleaning head is physically connected with the control unit (e.g. a cleaning head is connected with the control unit based on a snap-on mode), the control unit can respond to the physical connection and establish NFC communication with the corresponding connected cleaning head, such as generating a radio frequency field for NFC communication. The connected cleaning head can transmit the type identifier recorded by the NFC tag to the control unit based on the radio frequency field, so that the control unit can obtain the type identifier of the connected cleaning head.

[0313] In step 204, the type information corresponding to the type identifier is determined based on the pre-stored configuration information. The configuration information can include a mapping relationship between the type identifier of the cleaning head and the type information. For example, the mapping relationship between the type identifier “type 1” and the type information “fabric cleaning head”, the mapping relationship between the type identifier “type 2” and the type information “dish cleaning head”, etc. Therefore, the control unit can determine the type information corresponding to the type identifier in the pre-stored configuration information based on the determined type identifier of the cleaning head, thereby obtaining the type information of the cleaning head.

[0314] In this embodiment, by automatically identifying the type identifier of the connected cleaning head and determining the type information corresponding to the type identifier based on the pre-stored configuration information, the automatic identification of the type of the cleaning head is realized, which not only simplifies the user operation process, improves the use convenience, but also avoids the situation that the cleaning effect is affected due to the mismatch between the installed cleaning head and the set cleaning scene, and therefore the cleaning effect can also be ensured.

[0315] In an embodiment, the configuration information can further include cleaning parameters corresponding to different modes under the type information; and in step 106, the cleaning parameters are determined according to the type information of the cleaning head and the target mode, which can specifically include: searching for the cleaning parameters matching the type information of the cleaning head and the target mode in the configuration information. Since the mapping relationship between the type identifier of the cleaning head and the type information, and the cleaning parameters corresponding to different modes under the type information are stored in the configuration information, after obtaining the type information of the connected cleaning head and the target mode selected by the user, the control unit can search for the cleaning parameters matching the type information of the cleaning head and the target mode in the configuration information, and then perform the cleaning operation based on the found cleaning parameters. This embodiment can automatically match the appropriate cleaning parameters according to the recognized type information of the connected cleaning head and the cleaning mode selected by the user, thereby avoiding the risk of mismatching the cleaning parameters and the cleaning head type caused by manually selecting the target mode, and ensuring the cleaning effect.

[0316] In an embodiment, the above method can further include: receiving an update instruction of the configuration information, and updating the configuration information according to the update instruction. The update instruction can be an instruction or command for modifying or updating the configuration information. For example, in the process of upgrading and iterating the product, if some types of cleaning heads are no longer applicable and need to be eliminated, an update instruction for deleting the corresponding cleaning head type identifier can be initiated to the control unit, so as to delete the mapping relationship related to the corresponding cleaning head type identifier in the configuration information. If some types of cleaning heads are added or the cleaning parameters are adjusted in the process of upgrading and iterating the product, in order to enable the cleaning device to adapt to the added cleaning heads or new cleaning parameters, an update instruction for adding or modifying the corresponding cleaning head type identifier and its related configurations (such as the mapping relationship between the type identifier of the added cleaning head and the type information, and the cleaning parameters corresponding to different modes under the type information, etc.) can be initiated to the control unit, so as to add or modify the corresponding configurations in the configuration information. This can improve the expandability of the cleaning device and improve the cleaning coverage of the cleaning device.

[0317] In an embodiment, after obtaining the type information of the connected cleaning head, the above method can further include: prompting the user with the type information of the cleaning head. Specifically, the control unit can display the type information of the cleaning head based on the corresponding display interface, or can also broadcast the type information of the cleaning head through voice broadcast to prompt the user with the type information of the cleaning head. This embodiment can prompt the user with the type information of the cleaning head, so that the user can know the type of the currently used cleaning head in real time, and avoid the case of using the wrong cleaning head.

[0318] In an embodiment, after determining the target mode, the above method can further include: prompting the target mode to the user. Specifically, the control unit can display the target mode based on the corresponding display interface, or can also broadcast the target mode through voice broadcast to prompt the target mode currently used to the user. The embodiment can make the user know the target mode currently used in real time, and avoid the error of mode use.

[0319] In an embodiment, the above method can further include: issuing an abnormality prompt in the case that the cleaning device has an abnormality. The abnormality includes, but is not limited to, the cases such as water shortage of the clean water tank, full of the sewage tank, device tipping, component not returning to the original position, and the like, which affect the normal work of the cleaning device. Specifically, the control unit can monitor the state of the cleaning device in real time during the work of the cleaning device, and issue an abnormality prompt when an abnormal state is monitored. In the embodiment, the abnormality prompt can display abnormality prompt information based on the corresponding display interface, can also prompt the abnormality through the state indicating lamp (for example, the indicating lamp is off or green when the device works normally, and the indicating lamp is on or red when the abnormality is monitored), and can also broadcast the abnormality prompt through voice broadcast to prompt the abnormality of the device to the user. The embodiment can make the user know the use state of the device in real time and check the abnormality in time, so as to avoid the influence of the cleaning effect caused by the abnormality of the device.

[0320] In an embodiment, each cleaning head can have a corresponding type identifier, and the type identifier can further be provided with type information and cleaning parameters corresponding to different modes. The above method can further include: in response to the connection with any cleaning head, establishing a communication connection with any cleaning head, obtaining the type information in the type identifier of the connected cleaning head and the cleaning parameters corresponding to different modes; in response to the mode selection instruction of the cleaning mode, determining the target mode and the corresponding cleaning parameters, and performing the cleaning operation. In the embodiment, in order to improve the efficiency of the control unit in searching for matching cleaning parameters in a large amount of configuration information, and save the cost of the control unit in storing a large amount of configuration information, the configuration information such as the type information of the cleaning head and the cleaning parameters corresponding to different modes can also be carried in the type identifier corresponding to the cleaning head. Then, the control unit can establish a communication connection with any cleaning head when physically connected with any cleaning head, and obtain the type information in the type identifier of the connected cleaning head and the cleaning parameters corresponding to different modes. After obtaining the target mode selected by the user, the control unit can quickly determine the cleaning parameters corresponding to the target mode based on the data obtained from the connected cleaning head, and perform the cleaning operation. Not only the cost of the control unit in storing a large amount of configuration information is saved, but also the efficiency of the control unit in searching for matching cleaning parameters in a large amount of configuration information is improved.

[0321] It should be understood that although each step in the flowchart involved in the embodiments described above is shown in sequence according to the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart involved in the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0322] Based on the same inventive concept, the embodiments of the present application also provide a cleaning control handle for implementing the above-mentioned cleaning control method. The implementation scheme for solving the problem provided by the cleaning control handle is similar to the implementation scheme described in the above method, so the specific limitations in one or more cleaning control handle embodiments provided below can refer to the limitations of the cleaning control method described above, which will not be repeated here.

[0323] In an embodiment, as shown in FIG. 41, a cleaning control handle is provided, including a type acquisition module 502, a mode response module 504, and a parameter determination module 506. The type acquisition module 502 is configured to acquire type information of a connected cleaning head when connected with the cleaning head. The mode response module 504 is configured to determine a target mode in response to a mode selection instruction of a cleaning mode. The parameter determination module 506 is configured to determine a cleaning parameter according to the type information of the cleaning head and the target mode, and execute a cleaning operation. In one scenario, the above-mentioned parameter determination module 506 can also be integrated with the mode response module 504, thereby simplifying the hardware structure of the cleaning control handle.

[0324] In an embodiment, the cleaning head has a corresponding type identifier; the type acquisition module includes: an acquisition unit configured to acquire the type identifier of the connected cleaning head in response to the connection with any of the cleaning heads; and a determination unit configured to determine the type information corresponding to the type identifier based on pre-stored configuration information, the configuration information including a mapping relationship between the type identifier and the type information of the cleaning head.

[0325] In an embodiment, the obtaining unit is further configured to, in response to connection with any of the cleaning heads, establish a communication connection with any of the cleaning heads, obtain the type information of the connected cleaning head, and the communication connection includes at least one of radio frequency communication, optical identification communication, and serial communication. In an embodiment, the configuration information further includes the cleaning parameters corresponding to different modes under the type information; and the determining unit is further configured to search for the cleaning parameters matching the type information of the cleaning head and the target mode in the configuration information.

[0326] In an embodiment, each of the cleaning heads has a corresponding type identification, and the type identification is provided with type information and cleaning parameters corresponding to different modes of the type information; the parameter determining module is further configured to, in response to connection with any of the cleaning heads, establish a communication connection with any of the cleaning heads, obtain the type information in the type identification of the connected cleaning head and the cleaning parameters corresponding to different modes of the type information; in response to a mode selection instruction of a cleaning mode, determine a target mode and corresponding cleaning parameters, and perform a cleaning operation. In an embodiment, the cleaning control handle further includes a configuration updating module configured to receive an update instruction of the configuration information and update the configuration information according to the update instruction. In an embodiment, the cleaning control handle further includes a prompting module configured to prompt the user with the type information of the cleaning head and / or the target mode; or, in the case of monitoring an abnormality, issue an abnormality prompt.

[0327] The modules in the above cleaning control handle can be integrated on one control board, or distributed on different control boards, and each module can be implemented by software, hardware, or a combination thereof, in whole or in part. The modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a memory in a computer device in software form, so as to be called and executed by a processor to perform operations corresponding to each module.

[0328] Based on the same inventive concept, the embodiments of the present application also provide a cleaning head, which provides a similar solution to the above-mentioned method, and details are not repeated here. In an embodiment, a cleaning head is provided, which is configured with a type identification for establishing a communication connection with a cleaning device and feeding back type information of the cleaning head. In an embodiment, the type identification can also be provided with type information and cleaning parameters corresponding to different modes of the type information, so as to feed back the type information of the cleaning head and the cleaning parameters corresponding to different modes of the type head to the cleaning device.

[0329] Based on the same inventive concept, the embodiments of the present application also provide a cleaning device, which provides a similar solution to the above-mentioned method, and thus the specific limitations in one or more cleaning device embodiments provided below can refer to the above-mentioned limitations for the cleaning control method, which will not be repeated here.

[0330] In an embodiment, a cleaning device is provided, which includes a cleaning control handle as shown in FIG. 41 and the above-mentioned plurality of cleaning heads, and the cleaning control handle is detachably connected with any of the cleaning heads.

[0331] Specifically, as shown in FIG. 42, the cleaning device of the present application is further described below, including a cleaning head for moving on the surface of an article to be cleaned to clean the article to be cleaned. The cleaning head is configured with a type identifier, for example, a passive cleaning head identification PCB board 1 can carry a pin. The cleaning control handle is connected with the cleaning head through a detachable interface, which can include a type acquisition module (such as an active cleaning head identification PCB board 2 with a pin), a mode response module (such as a handle control PCB 3), and a parameter determination module (such as a master control PCB 4 storing configuration information). Among them, the PCB board 1 / 2 with the plug-in pin has at least two pins, one of which is grounded, and the other forms a signal path to transmit the type information of the cleaning head. The cleaning system includes a cleaning fluid generating device and a vacuum recovery device. The user interface can include a first user interface and a second user interface, wherein the first user interface is shown in FIG. 43A, which is used for mode prompting, such as displaying the type of cleaning head and the cleaning mode of the cleaning device; the second user interface is located on the handle, as shown in FIG. 43B, which can include a cleaning mode input button and a state prompt light. When the cleaning head and the handle are connected, the first user interface will automatically display the type information of the cleaning head, specifically, the PCB board 1 and the PCB board 2 are connected through the male and female pins, the active cleaning head identification PCB board 2 and the handle control PCB 3 are connected through the wire, the handle control PCB 3 can obtain the type information of the cleaning head through the connected PCB board 1 / 2, then transmit the recognized signal to the master control PCB 4, and the master control PCB 4 will display the type information of the cleaning head on the first user interface. The first user interface can also be equipped with an indicator light for displaying abnormal states of the machine, such as water shortage of the clean water tank, fullness of the sewage tank, device tilting, handle not returning, and the like.

[0332] After the user selects a cleaning mode (such as selecting a steam cleaning mode or a suction drying mode) through the second user interface, the corresponding indicator light in the second user interface is always on to indicate the selected target mode, and the handle control PCB 3 transmits the target mode signal to the main control PCB 4, which displays the target mode on the first user interface. The main control PCB 4 automatically matches the cleaning parameters according to the type information of the cleaning head and the target mode, and performs cleaning operations such as spraying, sucking, wiping, etc. For example, for a cloth cleaning head, if the target mode is a steam cleaning mode, the main control PCB 4 can find the cleaning parameters such as cleaning temperature, throughput, power, etc. that match the cloth cleaning head and the steam cleaning mode. The main control PCB 4 can also have an IOT (Internet of Things) module that updates the configuration information of the cleaning head through Wifi / Bluetooth communication mode. It can be understood that the functions of the above-mentioned PCB 2, PCB 3 and PCB 4 can also be integrated on one PCB, thereby simplifying the design and maintenance of the device.

[0333] Based on the same inventive concept, the embodiments of the present application also provide a cleaning system, which provides a similar solution to the above-mentioned method, and therefore the specific limitations in one or more cleaning system embodiments provided below can refer to the limitations of the cleaning control method described above, which will not be repeated here.

[0334] In an embodiment, the cleaning system can include a cleaning device and at least one terminal device as shown in FIG. 42, wherein the terminal device and the cleaning device are connected through wired or wireless communication. Specifically, the cleaning device and / or the terminal device are configured to display a human-computer interaction interface, obtain an interaction instruction for the cleaning device through the human-computer interaction interface, and control the working mode of the cleaning device based on the interaction instruction. The human-computer interaction interface is also used to display the type information of the cleaning head of the cleaning device, or display the target mode of the cleaning device, or issue an abnormal prompt for the cleaning device. In an embodiment, the terminal device can be a mobile terminal, or a device terminal (such as a device loaded with the corresponding functions of the PCB 4) for comprehensive control of the cleaning head and the handle, which is not limited in the present embodiment.

[0335] In an embodiment, a control device is provided, and an internal structure diagram of the control device can be as shown in FIG. 44. The control device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the processor of the control device is configured to provide computing and control capabilities. The memory of the control device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the control device is configured to exchange information between the processor and external devices. The communication interface of the control device is configured to communicate with external components in a wired or wireless manner. The wireless manner can be achieved through WIFI, mobile cellular network, near field communication (NFC), or other technologies. The computer program is executed by the processor to implement a cleaning control method. The display unit of the control device is configured to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the control device can be a touch layer overlaid on the display screen, or a key, trackball, or touchpad arranged on the shell of the control device, or an external keyboard, touchpad, or mouse, etc.

[0336] Those skilled in the art can understand that the structure shown in FIG. 44 is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the control device to which the scheme of the present application is applied. In an embodiment, the control device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0337] A steam cleaner is a device that uses high-temperature and high-pressure steam to clean the surface of an object to be cleaned. The structure of a traditional steam cleaner and the cleaning control process are shown in FIGS. 45 and 46. The traditional steam control method has the problem of unstable steam flow or temperature, which limits the use range of the steam cleaner. In addition, since the heater operates at full power throughout the process, the power consumption is high, which seriously wastes resources.

[0338] Based on this, the application provides a control method applied to the above cleaning device. As shown in FIG. 47, the cleaning device can include a steam cleaner, and the cleaning device includes a liquid pump (i.e., the second water pump in the foregoing embodiment), a heater, a cleaning head, and a control unit. The liquid pump, the heater, and the cleaning head are connected in sequence through a pipeline, and the control unit is in communication connection with the liquid pump and the heater respectively. Different water flow values and heating powers of the heater are set based on different cleaning scenes, and the flow and pressure of the steam pipeline are kept stable through the water flow value, and the heater is made to operate at a power constant value through the heating power. In this way, under the fixed water flow and heating power, the steam flow and temperature can quickly reach dynamic balance and be kept stable for a long time, so as to achieve the best cleaning effect. The liquid pump is used to inject cleaning liquid such as water from a water source into the heater through the pipeline. The water source can be a liquid storage tank arranged in the cleaning device (e.g., a steam cleaner), or other water storage devices arranged outside the cleaning device and connected to the liquid pump inlet through the pipeline. The heater can be a steam generator, which is used to heat the injected water to generate steam and output the steam through the connected cleaning head. The cleaning head is a specific cleaning component for cleaning the object to be cleaned, and the steam is output through the cleaning head to clean the object to be cleaned.

[0339] The control unit is used to obtain target flow and target power corresponding to the cleaning scene in response to the identified cleaning scene, and control the liquid pump to inject cleaning liquid such as water into the heater according to the target flow, and control the heater to heat the injected water at the target power, so as to output cleaning steam of the target cleaning scene. The cleaning scene can be a specific scene currently applied by the cleaning device. For example, it can be the category of the object to be cleaned currently needed to be cleaned, such as clothes, curtains, tableware, kitchenware, floor, small household appliances, etc. The cleaning scene can also be the category of the cleaning head currently installed in the cleaning device, such as a cloth cleaning head, a window cleaning head, a tableware cleaning head, a kitchenware and stove cleaning head, a kitchen appliance (such as an oven, a microwave oven, a refrigerator, etc.) cleaning head, a shoe cleaning head, a clothes cleaning head, a floor cleaning head, a bathroom cleaning head, a car cleaning head, etc.

[0340] The target flow refers to the specific flow value of the liquid pump for injecting water into the heater under a certain cleaning scene. The target power refers to the specific power value of the heater for working under a certain cleaning scene. Since the required steam flow and temperature can be different for different cleaning scenes, the control unit can obtain the target flow and target power corresponding to the cleaning scene in response to the identified cleaning scene, and control the liquid pump to inject water from the water source into the heater according to the target flow, and control the heater to heat the injected water at the target power. In this way, the cleaning device works at the fixed target flow and target power, so that the steam flow and temperature can quickly reach dynamic balance and be kept stable for a long time, so as to achieve the best cleaning effect.

[0341] In an embodiment, during the process that the control unit controls the liquid pump to inject water from the water source into the heater according to the target flow rate, the liquid pump can be open-loop power modulated according to the target flow rate, so that the liquid pump injects water into the heater at the target flow rate based on the power modulation. The power modulation essentially adjusts the input power of the liquid pump, thereby changing its rotation speed or working period, and finally controlling the water flow rate. Specifically, the power modulation can include at least one of Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM). PWM is a method of controlling output voltage or power by adjusting the pulse width of a signal. Its basic principle is to use a binary signal (high or low) to control a switching element (such as a transistor or MOSFET), which switches between on and off at a high rate. When the switch is on, the load receives power; when the switch is off, the load is disconnected from the power source. By adjusting the ratio of the on time of the switch to the total cycle time (i.e. the duty cycle), the average voltage or power loaded to the load can be effectively controlled. The greater the duty cycle, the higher the average voltage, the faster the rotation speed of the liquid pump, and the greater the water flow rate. In an ideal linear case, the water flow rate is positively correlated with the duty cycle. Therefore, the corresponding relationship between the target flow rate and the duty cycle in different cleaning scenarios can be preset, so that the duty cycle of the liquid pump is adjusted based on the corresponding relationship, so that the liquid pump can quickly reach the target flow rate based on the modulated duty cycle. PFM adjusts the total energy delivered in a unit of time by changing the frequency of the pulse signal (the number of pulses in a unit of time) while keeping the individual pulse width fixed. Generally, the higher the frequency, the more energy is input, the rotation speed or working period of the liquid pump increases, and the water flow rate is greater. Generally, under a fixed pulse width, the water flow rate is positively correlated with the pulse frequency. Therefore, the corresponding relationship between the target flow rate and the pulse frequency in different cleaning scenarios can be preset, so that the pulse frequency of the liquid pump is adjusted based on the corresponding relationship, so that the liquid pump can quickly reach the target flow rate based on the modulated pulse frequency, thereby achieving fast response. Since the above control method is not affected by the hysteresis of the temperature sensor itself and whether it is accurately installed at the fixed position of the heater, nor by the individual differences of the heater, as long as the frequency of the liquid pump is adjusted by the target flow rate, the stability of the output steam flow rate can be ensured. Therefore, compared with the traditional control method by the temperature sensor, the stability of the output steam flow rate can be improved.

[0342] In one scenario, as shown in FIG. 48, the cleaning device described above can further include a flow sensor, which can be arranged at the water inlet of the liquid pump and connected with the control unit. Specifically, the flow sensor is a device for measuring the flow rate or volume of a fluid (liquid or gas) in a pipeline. For example, the flow sensor can include but is not limited to a differential pressure flow sensor, a turbine flow sensor, an electromagnetic flow sensor, an ultrasonic flow sensor, etc. Then, in the process of controlling the liquid pump to inject the cleaning liquid (e.g. water) from the water source into the heater according to the target flow rate, the real-time flow rate at the water inlet of the liquid pump can also be obtained by the flow sensor, and the difference between the real-time flow rate and the target flow rate can be calculated, and then the liquid pump can be controlled based on the calculated difference in a closed loop power modulation manner, so that the liquid pump injects the cleaning liquid into the heater based on the power modulation with the target flow rate. Wherein, the power modulation can adopt at least one of the above-mentioned PWM and PFM, and the present embodiment will not repeat it again. The difference is that the present embodiment can control the liquid pump in a closed loop modulation manner based on the difference between the real-time flow rate and the target flow rate collected by the flow sensor, so that the actual flow rate gradually approaches the target flow rate, so as to improve the accuracy of flow control.

[0343] In an embodiment, in the process that the control unit controls the heater to heat the injected cleaning liquid with the target power to output the cleaning steam of the target cleaning scene, the heater can also be power modulated based on the target power to make the heater operate at the target power and output the cleaning steam of the target cleaning scene. The power modulation of the heater can also use at least one of the above-mentioned PWM and PFM, and can be open-loop modulation or closed-loop modulation, which is not limited in the embodiment. In an embodiment, the modulation process is similar to the above-mentioned modulation process of the liquid pump, which will not be described herein again. The above-mentioned control method adjusts the heater to a fixed power by identifying the target power of the cleaning scene, so as to ensure the stability of the output steam temperature and the fast response, and compared with the full-load operation in the traditional technology, the control method can also save the power consumption and reduce the power consumption. After the control unit obtains the target flow and the target power corresponding to the cleaning scene, the control unit can also respond to the cleaning instruction of the object to be cleaned to control the heater to operate to preheat the heater, and obtain the preheating temperature of the heater through the temperature sensor arranged on the heater. When the preheating temperature reaches the set temperature threshold, the liquid pump is controlled to inject the cleaning liquid of the water source into the heater according to the target flow. The cleaning instruction can be an instruction or a command for controlling the cleaning equipment to start working. The cleaning instruction can be a voice command, or an instruction sent through the switch key arranged on the cleaning equipment. The temperature threshold can be a target value of the preheating temperature. In the embodiment, the temperature sensor is arranged on the heater, so as to detect the preheating temperature of the heater in real time when the heater is preheated, and when the preheating temperature reaches the set temperature threshold, the liquid pump is controlled to inject the cleaning liquid of the water source into the heater according to the target flow. The embodiment uses the preheating mechanism to make the heater and internal pipes and other components quickly heat up, so as to ensure the efficient and stable operation of the equipment, and also helps to protect the equipment and reduce the use cost.

[0344] In an embodiment, the process of identifying the cleaning scene by the cleaning device can include: in response to an identification instruction of the object to be cleaned, the identification instruction carrying the category of the object to be cleaned; determining the corresponding cleaning scene according to the category of the object to be cleaned. Wherein, the identification instruction can be an instruction or command for instructing the cleaning device to identify the cleaning scene before the cleaning device performs the cleaning task. Specifically, it can be a voice command; or it can be a related instruction sent through a switch button provided on the cleaning device. In this embodiment, the instruction can carry the category of the object to be cleaned. For example, taking the identification instruction as a voice command as an example, the category of the object to be cleaned such as clothes, curtains, tableware, kitchenware, floor, small household appliances, etc. can be carried in the voice command, so that the corresponding cleaning scene can be quickly determined based on the identification instruction. Taking the identification instruction as a related instruction sent through a switch button provided on the cleaning device as an example, different switch buttons can be provided for different categories of objects to be cleaned, or based on different operation modes of the same switch button, different categories of objects to be cleaned can be corresponded. Thus, the corresponding cleaning scene can be identified based on different switch buttons or different operation modes of the same switch button, so as to realize flexible identification of different cleaning scenes.

[0345] In an embodiment, the category identification component can be an image acquisition component, which can acquire the image of the object to be cleaned based on image recognition technology under the drive of the identification instruction, and the control unit can perform image recognition on the image of the object to be cleaned to identify the category of the object to be cleaned, so as to determine the corresponding cleaning scene, thereby realizing automatic identification of different cleaning scenes. In another embodiment, the category identification component can be an infrared detection component, which can detect the heat distribution of the object to be cleaned based on infrared recognition technology under the drive of the identification instruction, and the control unit can analyze the heat distribution of the object to be cleaned to identify the category of the object to be cleaned, so as to determine the corresponding cleaning scene, thereby realizing automatic identification of different cleaning scenes.

[0346] The cleaning scene identifier can be a unique mark or symbol representing the cleaning scene applied by the cleaning head, such as a cloth cleaning head or a tableware cleaning head. Therefore, each cleaning head can be used to clean a scene in an embodiment, and has a corresponding cleaning scene identifier. In this embodiment, the cleaning head can be movably connected to the steam output port of the heater, so as to facilitate the replacement of the cleaning head to adapt to different cleaning scenes. Specifically, when the steam output port of the heater is connected to any cleaning head, the control unit can obtain the cleaning scene identifier of the connected cleaning head in response to the connection, so as to determine the corresponding cleaning scene according to the cleaning scene identifier of the connected cleaning head, thereby realizing automatic identification of different cleaning scenes. Of course, each cleaning head can also have a corresponding type identifier, which can be a unique mark or symbol representing the type of cleaning head. Since each cleaning head can have a corresponding type identifier, when the control unit is connected to any cleaning head through the handle, the type identifier of the connected cleaning head can be obtained. Specifically, the control unit can realize physical connection with any cleaning head through the handle, and establish a communication connection with the corresponding cleaning head, so as to obtain the type identifier of the connected cleaning head based on the communication connection.

[0347] In an embodiment, the cleaning scene identifier or the type identifier can also be provided with a corresponding flow rate and power. The control unit obtains the target flow rate and the target power corresponding to the cleaning scene, which can specifically include: obtaining the flow rate and the power in the cleaning scene identifier or the type identifier of the connected cleaning head, and taking them as the target flow rate and the target power corresponding to the cleaning scene. That is, the flow rate in the cleaning scene identifier or the type identifier of the currently connected cleaning head is taken as the target flow rate of the current cleaning scene, and the power in the cleaning scene identifier or the type identifier of the currently connected cleaning head is taken as the target power of the current cleaning scene. Thus, the target flow rate and the target power corresponding to the cleaning scene can be quickly obtained. Alternatively, the target flow rate and the target power corresponding to the cleaning scene can be determined based on pre-stored configuration information.

[0348] The configuration information includes at least one mapping relationship between the cleaning scene and the flow rate and the power. For example, as shown in Table 1 below, the mapping relationship between the cleaning scene "tableware" and the flow rate "A1" (unit: ml / min, i.e. A1 milliliter per minute) and the power "B1" (unit: W, i.e. watt), the mapping relationship between the cleaning scene "cloth" and the flow rate "A3" (unit: ml / min, i.e. A3 milliliter per minute) and the power "B3" (unit: W, i.e. watt), and the like. Therefore, the control unit can determine the target flow rate and the target power corresponding to the identified cleaning scene in the pre-stored configuration information, and inject cleaning liquid such as water into the heater according to the target flow rate, control the heater to heat the injected cleaning liquid with the target power, so as to output the cleaning steam of the target cleaning scene, thereby ensuring the cleaning effect in different scenes.

[0349] Table 1:

[0350] In an embodiment, as shown in FIGS. 48 and 49, the control logic of the cleaning device described above is further explained. In this embodiment, by using a flow sensor in the water circuit instead of a traditional liquid level sensor, the flow and steam pressure of the steam circuit are kept stable by setting the target flow value of the water circuit in different cleaning scenarios. The liquid pump is controlled by an AC chopper circuit, and operates at a pressure according to the set target flow, thereby ensuring the stability of the steam flow output. The temperature sensor in the heater does not participate in the temperature control of the steam, but only monitors the preheating temperature when the device is just powered on for preheating. After preheating is completed, the function of the temperature sensor is ended. When the steam cleaning operation is running, according to the different cleaning scenarios (such as different categories of objects to be cleaned, or different categories of cleaning heads installed), the control unit adjusts the duty cycle of the PWM signal to control the voltage of the heater through the AC chopper circuit control mode such as the PWM control mode, and the power of the heater after voltage regulation will operate at a constant value (i.e., the target power corresponding to the cleaning scenario). At this time, the fixed water flow and the fixed operating power of the heater will keep the steam flow and temperature stable after dynamic and rapid balancing, and can achieve the best cleaning effect. Thus, the stability of steam flow and temperature in various application scenarios is achieved, which can expand the application range of the cleaning device.

[0351] In addition, the control method of the embodiment is not affected by the hysteresis of the temperature sensor itself and whether it is accurately installed in the fixed position of the heater, nor is it affected by the individual differences of the heater. As long as the water flow value is set and the duty cycle of the heater output voltage is adjusted, the stability of the steam flow and temperature can be ensured. Compared with the traditional control method, the control method of the embodiment has a faster time response and more stable steam flow and temperature control. As shown in FIG. 50, the rectangular curve is the temperature operating curve under the control method of the embodiment, and the other curves are the control method of adjusting the liquid pump flow through temperature feedback, wherein the abscissa is time (unit: S, second), and the ordinate is temperature (unit: ℃, Celsius). In addition, in this embodiment, the heater operates at a fixed power corresponding to the cleaning scenario according to the different cleaning scenarios, which significantly reduces the power consumption compared with the full load operation in the traditional technology, thereby effectively saving energy.

[0352] Based on the same inventive concept, the embodiments of the present application also provide a control method applied to the cleaning device such as the steam cleaning machine described above. The implementation scheme for solving the problem provided by the method is similar to the implementation scheme described in the above device, and therefore the specific limitations in one or more control method embodiments provided below can refer to the limitations of the cleaning device described above, which will not be repeated here.

[0353] In an embodiment, as shown in FIG. 51, a control method of a cleaning device is provided, comprising:

[0354] Step 702, in response to the identified cleaning scene, obtaining a target flow rate and a target power corresponding to the cleaning scene.

[0355] Step 704, according to the target flow rate, injecting cleaning liquid (such as water) to the heater, controlling the heater to heat the injected cleaning liquid with the target power, and outputting cleaning steam of the target cleaning scene.

[0356] In an embodiment, the method further comprises: in response to the identification instruction of the object to be cleaned, identifying the category of the object to be cleaned; and determining the corresponding cleaning scene according to the category of the object to be cleaned.

[0357] In an embodiment, the method further comprises: in response to the identification instruction of the object to be cleaned, the identification instruction carrying the category of the object to be cleaned; and determining the corresponding cleaning scene according to the category of the object to be cleaned.

[0358] In an embodiment, the cleaning unit comprises at least one cleaning head, each cleaning head having a corresponding cleaning scene identification or type identification; the method further comprises: in response to the connection of any cleaning head, obtaining the cleaning scene identification or type identification of the connected cleaning head; and determining the corresponding cleaning scene according to the cleaning scene identification or type identification of the connected cleaning head.

[0359] In an embodiment, the cleaning scene identification or type identification is provided with corresponding flow rate and power; obtaining the target flow rate and the target power corresponding to the cleaning scene comprises: obtaining the flow rate and the power in the cleaning scene identification or type identification of the connected cleaning head as the target flow rate and the target power corresponding to the cleaning scene.

[0360] In an embodiment, obtaining the target flow rate and the target power corresponding to the cleaning scene comprises: determining the target flow rate and the target power corresponding to the cleaning scene based on pre-stored configuration information, the configuration information including a mapping relationship between at least one cleaning scene and flow rate and power.

[0361] It should be understood that, although the steps in the flowcharts related to the embodiments described above are shown in a sequence as indicated by arrows, the steps are not necessarily executed in the order as indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not necessarily limited in sequence, and the steps can be executed in other sequences. Moreover, at least some of the steps in the flowcharts related to the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution of the steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least some of the other steps or the steps or stages in the other steps.

[0362] Based on the same inventive concept, the embodiments of the present application also provide a steam control device for implementing the control method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more steam control device embodiments provided below can refer to the limitations of the steam control method described above, and will not be repeated here.

[0363] In an embodiment, as shown in FIG. 52, a steam control device is provided, including a response module 802 and a processing module 804, the response module is configured to respond to an identified cleaning scene to obtain a target flow rate and a target power corresponding to the cleaning scene; the processing module is configured to inject cleaning liquid such as water into a heater according to the target flow rate, control the heater to heat the injected cleaning liquid at the target power, and output cleaning steam of a target cleaning scene.

[0364] In an embodiment, the device further comprises a preheating module configured to: in response to a cleaning instruction for the object to be cleaned, control the heater to operate to preheat the heater; and obtain a preheating temperature of the heater, and when the preheating temperature reaches a set temperature threshold, inject the cleaning liquid into the heater according to the target flow rate. In an embodiment, the processing module is further configured to: power modulate the liquid pump according to the target flow rate, so that the liquid pump injects the cleaning liquid into the heater at the target flow rate based on the power modulation. In an embodiment, the processing module is further configured to: power modulate the heater based on the target power, so that the heater operates at the target power and outputs cleaning steam of a target cleaning scene. In an embodiment, the power modulation comprises at least one of pulse width modulation and pulse frequency modulation. In an embodiment, the device further comprises a scene identification module configured to: in response to an identification instruction for the object to be cleaned, identify a category of the object to be cleaned; and determine a corresponding cleaning scene according to the category of the object to be cleaned. In an embodiment, the scene identification module is further configured to: in response to the identification instruction for the object to be cleaned, the identification instruction carrying the category of the object to be cleaned; and determine the corresponding cleaning scene according to the category of the object to be cleaned.

[0365] In an embodiment, the cleaning device comprises at least one cleaning head, each of the cleaning heads having a corresponding cleaning scene identifier; the scene identification module is further configured to: in response to connection of any of the cleaning heads, obtain a cleaning scene identifier of the connected cleaning head; and determine a corresponding cleaning scene according to the cleaning scene identifier of the connected cleaning head. In an embodiment, the cleaning scene identifier is provided with corresponding flow rate and power; the response module is further configured to: obtain the flow rate and power in the cleaning scene identifier of the connected cleaning head as the target flow rate and target power corresponding to the cleaning scene. In an embodiment, the response module is further configured to: determine the target flow rate and target power corresponding to the cleaning scene based on pre-stored configuration information, the configuration information including a mapping relationship between at least one cleaning scene and flow rate and power. The various modules in the above steam control device can be realized wholly or partially by software, hardware, and combinations thereof. The various modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a memory in a computer device in software form, so as to be called and executed by a processor to perform operations corresponding to the various modules.

[0366] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning apparatus, characterized by, The cleaning device comprises: a cleaning unit having a spray port and a suction port; a liquid spraying unit connected with the spray port for spraying cleaning liquid to a surface to be cleaned; a sewage collecting unit connected with the suction port for sucking sewage generated during cleaning; and a control unit connected with the liquid spraying unit and the sewage collecting unit, the control unit being configured to control the liquid spraying unit and the sewage collecting unit.

2. The cleaning apparatus of claim 1, wherein, The cleaning device is a steam cleaner, and the cleaning unit comprises a cleaning head provided with the spray port and the suction port. The steam cleaner comprises a steam generating unit connected with the control unit, the steam generating unit comprising an electric heater and the liquid spraying unit connected with each other; the electric heater is configured to heat the cleaning liquid to provide steam for the liquid spraying unit; and the control unit is configured to control the steam generating unit.

3. The cleaning apparatus of claim 1, wherein, The cleaning device further comprises a secondary heating unit connected with the control unit, and the control unit is configured to control the secondary heating unit.

4. The cleaning apparatus of claim 3, wherein, The secondary heating unit is configured to provide steam, hot water or hot air for at least one of the liquid spraying unit and the spray port, or the secondary heating unit is configured to heat the cleaning liquid.

5. The cleaning apparatus of claim 3, wherein, The secondary heating unit comprises a secondary heater connected in parallel or in series with the electric heater; or The secondary heating unit comprises a heat exchanger, a water storage device, a first water pump and a secondary heater connected in sequence; a liquid outlet of the secondary heater is connected with a heat medium inlet of the heat exchanger; a heat medium outlet of the heat exchanger is connected with a liquid inlet of the water storage device; and the heat exchanger is connected in parallel or in series with the electric heater.

6. The cleaning apparatus of any one of claims 1-4, wherein, The cleaning device further comprises a self-cleaning unit, and the cleaning unit comprises a cleaning head. The self-cleaning unit is connected with the control unit, and the self-cleaning unit is configured to clean the cleaning head; and the control unit is configured to control the self-cleaning unit.

7. The cleaning apparatus of claim 6, wherein, The self-cleaning unit comprises a self-cleaning box and an inductive switch. The inductive switch is arranged in the self-cleaning box, and the inductive switch is connected with the control unit; and the cleaning head is capable of being inserted into the self-cleaning box to trigger the inductive switch. The control unit is configured to control the liquid spraying unit according to a state of the inductive switch.

8. The cleaning apparatus of any one of claims 1-4, wherein, The control unit comprises a controller and a control component connected with each other. The control component is configured to adjust a working mode of the cleaning device, and the working mode of the cleaning device comprises a cleaning mode and a drying mode; in the cleaning mode, the liquid spraying unit and the sewage collecting unit work; and in the drying mode, the liquid spraying unit does not work.

9. The cleaning apparatus of claim 8, wherein, The control component comprises a first control member and a second control member; the first control member is configured to control the cleaning device to enter or exit the cleaning mode; and the second control member is configured to control the cleaning device to enter or exit the drying mode.

10. The cleaning device according to claim 1, wherein the cleaning device comprises a main machine, the main machine is provided with the liquid spraying unit and the sewage collecting unit; and the main machine is provided with the self-cleaning unit. The cleaning unit is provided with a first cleaning channel and a first dirt channel, the first cleaning channel is connected to the liquid spraying unit, and the first dirt channel is connected to the sewage collecting unit. In the first state, the cleaning unit is detachably connected to the self-cleaning unit, and the spray port of the first cleaning channel and the suction port of the first dirt channel are located in the self-cleaning unit, so that the cleaning device can enter the self-cleaning mode. The cleaning device further comprises a storage tube for accommodating at least one of the first cleaning channel, the first dirt channel and the control wire harness of the cleaning device.

11. The cleaning apparatus according to claim 1 or 10, characterized in that, The cleaning unit comprises a handle and at least one cleaning head detachably connected to the handle, and the cleaning head is provided with the spaced spray port and suction port.

12. The cleaning apparatus of claim 1 or 10, wherein, One of the handle and the self-cleaning unit is provided with a first acquisition part, and the other is provided with a first marking part, and in response to the connection of the handle and the self-cleaning unit, the first acquisition part can identify the first marking part, and the cleaning device enters the self-cleaning mode or standby self-cleaning mode.

13. The cleaning apparatus of claim 12, wherein, The handle is provided with a first acquisition part, and the cleaning head is provided with a second marking part; in response to the connection of the handle and the cleaning head, the first acquisition part can identify the second marking part, and the cleaning device enters the cleaning mode matched with the cleaning head.

14. The cleaning apparatus of claim 12 or 13, wherein, The cleaning head is provided with a plurality of suction ports which are circumferentially arranged outside the spray port.

15. The cleaning apparatus of claim 12, wherein, Or, the cleaning head is provided with a plurality of spray ports which are circumferentially arranged outside the suction port. The cleaning unit comprises a cleaning head, and the cleaning head comprises a shell and a cleaning assembly.

16. The cleaning apparatus of claim 1, wherein, The shell is provided with a spray port and a suction port, and at least part of the cleaning assembly is accommodated in the suction port. The cleaning unit comprises a cleaning head, and the cleaning head comprises a shell and a cleaning assembly.

17. The cleaning apparatus of claim 1, wherein, The cleaning assembly comprises a positioning part and a cleaning part; at least part of the positioning part and the cleaning part is accommodated in the suction port.

18. The cleaning apparatus of claim 16 or 17, wherein, Or, at least part of the positioning part forms the suction port, and at least part of the cleaning part is accommodated in the suction port. One of the positioning part and the cleaning part is provided with a fixing groove, and the other is provided with a mounting convex rib, and the fixing groove and the mounting convex rib are clamped.

19. The cleaning apparatus of claim 18, wherein, The cleaning unit comprises a cleaning head, and the cleaning head comprises:

20. The cleaning apparatus of claim 1, wherein, A spray head body provided with a first matching part and a first knob part; A dust cover provided with a second matching part; and A handle provided with a first clamping part; When the first knob part is in the locking position, the first knob part is connected to the second matching part, and the first clamping part can be connected to the first matching part and the second matching part in sequence to connect the spray head body and the dust cover to the handle. ​ The first knob part is configured to be operable to be actuated to move from the locking position to a first unlocking position; the first knob part in the first unlocking position is capable of pressing the first clamping part to disconnect the first clamping part from the second matching part, and the first clamping part remains connected to the first matching part.

21. The cleaning apparatus of claim 20, wherein, The spray head body has an opening, and an air inlet is formed on the edge of the outer circumferential surface of the spray head body near the opening.

22. The cleaning apparatus of claim 20, wherein, The spray head body has an opening, and the bristles arranged at the opening protrude out of the opening in a direction away from the handle, and the protruding length of the bristles is 1-3 mm.

23. A method of controlling cleaning of a cleaning apparatus according to any one of claims 1 to 22, characterized in that, The cleaning unit comprises a handle and one or more cleaning heads, and the control unit is detachably connected to any of the cleaning heads through the handle; the method comprises: In response to the connection with any of the cleaning heads, type information of the connected cleaning head is acquired; In response to a mode selection instruction for the cleaning mode, a target mode is determined; According to the type information of the cleaning head and the target mode, cleaning parameters are determined, and a cleaning operation is performed.

24. The method of claim 23, wherein, Each of the cleaning heads has a corresponding type identifier; In response to the connection with any of the cleaning heads, type information of the connected cleaning head is acquired, comprising: In response to the connection with any of the cleaning heads, type information of the connected cleaning head is acquired, comprising: Based on pre-stored configuration information, type information corresponding to the type identifier is determined, and the configuration information includes a mapping relationship between the type identifier and the type information of the cleaning head.

25. The method of claim 23, wherein, Each of the cleaning heads has a corresponding type identifier, and the type identifier is provided with type information and cleaning parameters corresponding to different modes thereof; The method further comprises: In response to the connection with any of the cleaning heads, a communication connection is established with any of the cleaning heads, type information in the type identifier of the connected cleaning head and cleaning parameters corresponding to different modes thereof are acquired; In response to a mode selection instruction for the cleaning mode, a target mode and corresponding cleaning parameters are determined, and a cleaning operation is performed; The communication connection mode comprises at least one of radio frequency communication, optical identification communication and serial communication.

26. The method of claim 1-25, wherein, The cleaning device comprises a steam generation unit connected to the control unit, and the steam generation unit comprises a liquid injection unit and a heater, and the method comprises: In response to the identified cleaning scene, target flow and target power corresponding to the cleaning scene are acquired; According to the target flow, cleaning liquid is injected into the heater of the steam generation unit, the heater is controlled to heat the injected cleaning liquid at the target power, and cleaning steam of the target cleaning scene is output through the liquid injection unit of the steam generation unit.

27. The method of claim 26, wherein, The method further comprises: In response to an identification instruction for the object to be cleaned, the category of the object to be cleaned is identified; according to the category of the object to be cleaned, a corresponding cleaning scene is determined; or In response to an identification instruction for the object to be cleaned, the category of the object to be cleaned is carried in the identification instruction; according to the category of the object to be cleaned, a corresponding cleaning scene is determined.

28. The method of claim 26, wherein, The cleaning unit comprises at least one cleaning head, each of the cleaning heads has a corresponding cleaning scene identification or type identification; the method further comprises: In response to the connection with any of the cleaning heads, the cleaning scene identification or type identification of the connected cleaning head is acquired; According to the cleaning scene identification or type identification of the connected cleaning head, the corresponding cleaning scene is determined.

29. The method of claim 28, wherein, The cleaning scene identification or type identification is provided with corresponding flow and power; the acquisition of the target flow and the target power corresponding to the cleaning scene comprises: The flow and the power in the cleaning scene identification or type identification of the connected cleaning head are acquired as the target flow and the target power corresponding to the cleaning scene.

30. The method of any one of claims 26 to 29, wherein, The acquisition of the target flow and the target power corresponding to the cleaning scene comprises: Based on the pre-stored configuration information, the target flow and the target power corresponding to the cleaning scene are determined, and the configuration information comprises at least one mapping relationship between a cleaning scene and a flow and power.

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