Hand-held wet cleaning apparatus

Abstract

A handheld wet cleaning device includes a main body, a handle, and a cleaning head. The main body has a first end distal from a surface to be cleaned and a second end proximal to the surface to be cleaned in an axial direction thereof. The handle is disposed at the first end of the main body, and a control button is disposed on the handle for switching a cleaning mode of the handheld wet cleaning device. The cleaning head is pivotably disposed at the second end of the main body, and the cleaning head defines a suction port and a cleaning element disposed within the suction port. A dirty recovery system includes a suction motor for generating a suction airflow, a suction line for the suction airflow to flow, and a recovery tank for recovering dirt. A cleaning fluid supply system includes a cleaning fluid tank, a cleaning line, a water pump, and a liquid distributor in fluid communication with the cleaning line. A controller is configured to control the suction motor and the water pump to control the handheld wet cleaning device to clean in different cleaning modes to adapt to different areas.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more particularly to a handheld wet cleaning device. Background Technology

[0002] As living standards improve, people have increasingly higher requirements for floor cleaning. Currently, the market offers a variety of surface cleaning equipment, such as vacuum cleaners, floor scrubbers, and steam mops, to meet diverse needs. Floor scrubbers, in particular, are convenient and quick, as they can both collect dirt and perform wet cleaning on the surface. A typical floor scrubber includes a handle, main unit, and cleaning heads arranged from top to bottom. It also includes a dirt recovery system and a cleaning solution supply system, using cleaning solution to clean the surface while simultaneously recovering the dirt. However, currently, floor scrubbers have relatively limited functionality and are difficult to adapt to areas with diverse cleaning scenarios. Summary of the Invention

[0003] To address the shortcomings of the aforementioned technologies, this invention provides a handheld wet cleaning device that can effectively clean different areas using different cleaning modes.

[0004] On one hand, the present invention provides a handheld wet cleaning device, including... The main unit, along its axial direction, has a first end disposed away from the surface to be cleaned and a second end disposed near the surface to be cleaned. A handle is provided at the first end of the main unit, and a control button is provided on the handle for switching the cleaning mode of the handheld wet cleaning device. A cleaning head pivotally disposed at the second end of the main unit, the cleaning head defining a suction port and a cleaning element disposed within the suction port; A soil and waste recovery system, comprising a suction motor for generating a suction airflow, a suction pipeline for supplying the suction airflow, and a recovery bin for recovering soil and waste. A cleaning fluid supply system includes a cleaning fluid tank, cleaning lines, a water pump, and a liquid distributor in fluid communication with the cleaning lines; A controller configured to control the suction motor and the water pump to control the handheld wet cleaning device to clean in different cleaning modes to suit different areas.

[0005] Optionally, the dirt recovery system further includes a dirt concentration sensor for detecting the degree of dirt in the fluid in the suction pipeline. The cleaning mode includes an intelligent cleaning mode, in which the controller adjusts the suction power of the suction motor and / or the liquid supply of the water pump according to the degree of dirt.

[0006] Optionally, the cleaning mode includes an intelligent cleaning mode, and the suction power of the suction motor includes a first power and a second power greater than the first power. In the intelligent cleaning mode, after the controller controls the suction motor to work continuously at the first power for a first preset time, it controls the suction motor to run at the second power for a second preset time.

[0007] Optionally, the liquid supply of the water pump includes a first liquid supply and a second liquid supply, wherein the second liquid supply is greater than the first liquid supply. In the intelligent cleaning mode, the controller controls the suction motor to run at the first power while simultaneously controlling the water pump to supply at the first liquid supply; the controller controls the suction motor to run at the second power while simultaneously controlling the water pump to supply at the second liquid supply.

[0008] Optionally, the first liquid supply is the liquid supply of the water pump when it operates in the following mode: operating in a periodic mode of working for a third time and shutting off for a fourth time, wherein the fourth time is longer than the third time; The second liquid supply is the liquid supply of the water pump when it operates in the following mode: it operates in a periodic mode of working for a fifth time and shutting down for a sixth time; wherein the sixth time is longer than the fifth time and the fourth time is longer than the third time.

[0009] Optionally, it also includes a cleaning fluid detection device disposed in the cleaning pipeline, configured to detect whether there is cleaning fluid flowing in the cleaning pipeline. When the cleaning fluid detection device detects that there is no cleaning fluid flowing in the cleaning pipeline, the controller controls the water pump to continue to work for a preset pumping time.

[0010] Optionally, the controller is configured to, upon determining that the cleaning fluid tank is low on cleaning fluid, control the water pump to operate in a cyclical mode of working for a first duration and stopping for a second duration.

[0011] Optionally, it also includes a cleaning fluid detection device disposed in the cleaning pipeline, which is configured to detect whether there is cleaning fluid flowing in the cleaning pipeline. When the cleaning fluid detection device detects that there is no cleaning fluid flowing in the cleaning pipeline, the controller controls the water pump to continue to work for a preset pumping time. The controller is configured to, upon determining that the cleaning fluid tank is low on cleaning fluid, control the water pump to operate in the following mode: operating periodically for a first duration and stopping for a second duration; wherein the first duration is longer than the fifth duration.

[0012] Optionally, the cleaning mode includes a first cleaning mode, in which the controller controls the suction motor to run at a first power while simultaneously controlling the water pump to supply liquid at a first supply volume.

[0013] Optionally, the cleaning mode includes a second cleaning mode, in which the controller controls the suction motor to run at a second power while simultaneously controlling the water pump to supply liquid at a second supply rate.

[0014] Optionally, the cleaning mode includes a third cleaning mode, in which the controller controls the suction motor to run at a first power while simultaneously controlling the water pump to either not operate or controlling the water pump to supply liquid at a first supply volume.

[0015] This invention provides a handheld wet cleaning device, comprising a main unit, a handle, and a cleaning head. The main unit has a first end disposed opposite to the surface to be cleaned and a second end disposed near the surface to be cleaned along its axial direction. The handle is disposed at the first end of the main unit and has a control button for switching cleaning modes of the handheld wet cleaning device. The cleaning head is pivotally disposed at the second end of the main unit and defines a suction port and a cleaning component disposed within the suction port. A dirt recovery system includes a suction motor for generating a suction airflow, a suction pipe for supplying the suction airflow, and a recovery tank for recovering dirt. A cleaning fluid supply system includes a cleaning fluid tank, a cleaning pipe, a water pump, and a liquid distributor in fluid communication with the cleaning pipe. A controller is configured to control the suction motor and water pump to control the handheld wet cleaning device to clean in different cleaning modes to adapt to different areas. Using the above control method, different cleaning modes can be used for different areas, improving cleaning efficiency and cleaning effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a handheld wet cleaning device according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram illustrating the working principle in one embodiment; Figure 3 This is a graphical user interface that displays different cleaning modes in one embodiment. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0019] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances. refer to Figure 1 and 2 , Figure 1 A handheld wet cleaning device 100 is disclosed, comprising a handle 1, a main unit 2, and a cleaning head 3. The main unit 2 has a first end disposed opposite to the surface to be cleaned and a second end disposed near the surface to be cleaned along its axial direction. The handle 1 is disposed at the first end of the main unit 2 and has a control button for switching the cleaning mode of the handheld wet cleaning device 100. The cleaning head 3 is pivotally disposed at the second end of the main unit 2, and defines a suction port 12 and a cleaning component disposed within the suction port 12. The handheld wet cleaning device 100 also includes a dirt recovery system and a cleaning fluid supply system. The dirt recovery system includes a suction motor 5 for generating a suction airflow, a suction pipe 6 for supplying the suction airflow, and a recovery tank 7 for recovering dirt. The cleaning fluid supply system includes a cleaning fluid tank 8, a cleaning pipe 9, a water pump 10, and a liquid distributor 11 in fluid communication with the cleaning pipe 9.

[0021] The handheld wet cleaning device 100 also includes a controller 4 (typically a PCB board, not detailed here), configured to control the suction motor 5 and water pump 10 to operate the handheld wet cleaning device 100 in different cleaning modes to suit different areas. The cleaning modes include two or more of the following: intelligent cleaning mode, first cleaning mode, second cleaning mode, and third cleaning mode. Users can switch between different cleaning modes using buttons to perform specific cleaning on different areas.

[0022] In one embodiment, the dirt recovery system further includes a dirt concentration sensor for detecting the degree of dirt in the fluid. In intelligent cleaning mode, the controller 4 controls the suction power of the suction motor 5 and / or the liquid supply of the water pump 10 based on the degree of dirt. The dirt concentration sensor is generally an optical sensor. When the dirt content in the fluid is relatively high, it changes the intensity of the light received by the light receiver, thereby determining the degree of dirt on the surface to be cleaned. In other embodiments, the dirt concentration sensor can also be other sensors capable of performing this function. The controller 4 controls the suction power of the suction motor 5 and the liquid output of the water pump 10 in real time based on the signal emitted by the optical sensor. When the floor is relatively dirty, the suction power and the liquid output of the water pump 10 are increased. When the floor is relatively clean, the suction power and the liquid output of the water pump 10 are decreased.

[0023] Furthermore, when the ground is relatively clean with little dirt, if it continues to operate at the first power, the roller brush will gradually become dirtier over time, potentially affecting subsequent cleaning effectiveness. To improve continuous cleaning performance, it is necessary to adjust the suction power of the suction motor 5 and the liquid supply of the water pump 10. The suction power of the suction motor 5 includes a first power (e.g., 70W) and a second power greater than the first power (e.g., 150W). In intelligent cleaning mode, the controller 4 controls the suction motor 5 to operate continuously at the first power for a first preset time, and then controls the suction motor 5 to operate at the second power for a second preset time. The liquid supply of the water pump 10 includes a first liquid supply and a second liquid supply, with the second liquid supply being greater than the first liquid supply. In intelligent cleaning mode, the controller 4 controls the suction motor 5 to operate at the first power (low-speed operation) while simultaneously controlling the water pump 10 to supply liquid at the first liquid supply; the controller 4 controls the suction motor 5 to operate at the second power (high-speed operation) while simultaneously controlling the water pump 10 to supply liquid at the second liquid supply.

[0024] In intelligent cleaning mode, when the controller 4 controls the suction motor 5 and water pump 10 to operate in the above-mentioned periodic mode (continuous low-speed operation for 15-24 seconds, then switching to high-speed operation for 3 seconds, and then continuous low-speed operation for 15-24 seconds, then switching to high-speed operation for 3 seconds), the roller brush can be cleaned more effectively in the high-speed operation state, thereby improving the continuous cleaning effect of the equipment.

[0025] In another embodiment, the handheld wet cleaning device 100 may not include a dirt concentration sensor. In the intelligent cleaning mode, the controller 4 operates according to a pre-set program. The suction power of the suction motor 5 includes a first power (e.g., 70W) and a second power greater than the first power (e.g., 150W). In the intelligent cleaning mode, the controller 4 controls the suction motor 5 to operate continuously at the first power for a first preset time, and then controls the suction motor 5 to operate at the second power for a second preset time. The water pump 10 has a first supply volume and a second supply volume, with the second supply volume being greater than the first supply volume. In the intelligent cleaning mode, when the controller 4 controls the suction motor 5 to operate at the first power, it simultaneously controls the water pump 10 to supply water at the first supply volume. When the controller 4 controls the suction motor 5 to operate at the second power, it simultaneously controls the water pump 10 to supply water at the second supply volume. This cleaning mode effectively improves the continuous cleaning effect of the roller brush.

[0026] In any of the above embodiments, the first liquid supply is the liquid supply of the water pump 10 when it operates in the following mode: operating in a periodic mode of a third working time (e.g., 200ms on) and a fourth closing time (e.g., 2s off), wherein the fourth closing time is longer than the third closing time. The second liquid supply is the liquid supply of the water pump 10 when it operates in the following mode: operating in a periodic mode of a fifth working time (e.g., 500ms on) and a sixth closing time (e.g., 2s off); wherein the sixth closing time is longer than the fifth closing time, and the fourth closing time is longer than the third closing time.

[0027] In any of the above embodiments, to detect whether there is cleaning fluid in the cleaning fluid tank 8, the cleaning fluid supply system also includes a cleaning fluid detection device installed in the cleaning pipeline 9. The cleaning fluid detection device is generally an optical detector; when liquid flows in the pipeline, light is refracted, and the signal changes. The cleaning fluid detection device is configured to detect whether there is cleaning fluid flowing in the cleaning pipeline 9. When there is no cleaning fluid flowing in the cleaning pipeline 9, it will issue a low-fluidity warning, reminding the user to add water. In some cases, when foam or air is present in the cleaning fluid, the cleaning fluid detection device may issue a false alarm, even if there is liquid in the cleaning fluid tank 8. To avoid false alarms, when the cleaning fluid detection device detects no cleaning fluid flowing in the cleaning pipeline 9, the controller 4 controls the water pump 10 to continue operating for a preset pumping time (e.g., water pump 10 running at full speed for 10 seconds). If there is still no cleaning fluid flowing at this time, it is determined that there is no cleaning fluid in the cleaning fluid tank 8. If cleaning fluid flow is detected in the pipeline during this process, it means that there is still cleaning fluid in the cleaning fluid tank 8, and there is no need to remind the user to add cleaning fluid. This setting can effectively prevent false alarms from the cleaning fluid detection device.

[0028] To quickly detect whether there is cleaning fluid in the cleaning fluid tank 8, the controller 4 is configured to control the water pump 10 to operate in the following mode after determining that the cleaning fluid tank 8 is low on cleaning fluid: it operates periodically for a first duration (e.g., 0.5 seconds) and stops for a second duration (e.g., 2.5 seconds). The first duration is longer than the fifth duration. This allows for rapid detection of whether cleaning fluid has been refilled into the cleaning fluid tank 8.

[0029] The cleaning modes also include a first cleaning mode (e.g., living room mode), a second cleaning mode (e.g., kitchen mode), and a third cleaning mode (e.g., bathroom mode). In the first cleaning mode, the controller 4 controls the suction motor 5 to operate at a first power level, while simultaneously controlling the water pump 10 to supply water at a first liquid supply rate. In the second cleaning mode, the controller 4 controls the suction motor 5 to operate at a second power level, while simultaneously controlling the water pump 10 to supply water at a second liquid supply rate. In the third cleaning mode, the controller 4 controls the suction motor 5 to operate at the first power level, while simultaneously controlling the water pump 10 to either not operate or to supply water at the first liquid supply rate.

[0030] refer to Figure 3 The following details the control logic. Cleaning modes include Smart Cleaning Mode, Living Room Mode, Kitchen Mode, and Bathroom Mode. A short press of the control button starts the device. After startup, the device defaults to Smart Cleaning Mode, where the water pump runs at full speed for 10 seconds. A short press of the mode button switches to Living Room Mode, another short press switches to Kitchen Mode, and a third short press switches to Bathroom Mode.

[0031] In intelligent cleaning mode: the main motor power is 80W / 120W, with 80W for low-speed operation and 120W for high-speed operation. If the suction motor 5 operates continuously at low speed for 15-24 seconds, it switches to high speed for 3 seconds; if it operates continuously at high speed for 3 seconds, it switches back to low speed; and it operates continuously at low speed for 10 seconds. During use, if a complete blockage in the pipeline is detected, it switches to high speed. In low-speed mode, the suction motor 5 has a power of 80W, and the water pump 10 operates at low water output: 200ms on, 2 seconds off. In high-speed mode, the suction motor 5 has a power of 120W, and the water pump 10 operates at high water output: 500ms on, 2 seconds off. In living room mode, both the suction motor 5 and the water pump 10 operate at low speed. In kitchen mode, both the suction motor 5 and the water pump 10 operate at high speed. In bathroom mode, the suction motor 5 operates at low speed, and the water pump 10 stops or operates intermittently at low speed.

[0032] During equipment operation, when the water sensor detects a lack of water, the water pump 10 runs at full speed for 10 seconds to prevent false alarms. After a water shortage, the water pump 10 operates in a cycle of 0.5 seconds on and 2.5 seconds off until water is detected. Once water is detected, it continuously detects water for 1 second, then returns to normal and no longer prompts the user to add water.

[0033] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A handheld wet cleaning device, characterized in that, include The main unit, along its axial direction, has a first end disposed away from the surface to be cleaned and a second end disposed near the surface to be cleaned. A handle is provided at the first end of the main unit, and a control button is provided on the handle for switching the cleaning mode of the handheld wet cleaning device. A cleaning head pivotally disposed at the second end of the main unit, the cleaning head defining a suction port and a cleaning element disposed within the suction port; A soil and waste recovery system, comprising a suction motor for generating a suction airflow, a suction pipeline for supplying the suction airflow, and a recovery bin for recovering soil and waste. A cleaning fluid supply system includes a cleaning fluid tank, cleaning lines, a water pump, and a liquid distributor in fluid communication with the cleaning lines; A controller configured to control the suction motor and the water pump to control the handheld wet cleaning device to clean in different cleaning modes to suit different areas.

2. The handheld wet cleaning device as described in claim 1, characterized in that, The dirt recovery system also includes a dirt concentration sensor for detecting the degree of dirt in the fluid in the suction pipeline. The cleaning mode includes an intelligent cleaning mode, in which the controller adjusts the suction power of the suction motor and / or the liquid supply of the water pump according to the degree of dirt.

3. The handheld wet cleaning device as described in claim 1, characterized in that, The cleaning mode includes an intelligent cleaning mode. The suction power of the suction motor includes a first power and a second power greater than the first power. In the intelligent cleaning mode, after the controller controls the suction motor to work continuously at the first power for a first preset time, it controls the suction motor to run at the second power for a second preset time.

4. The handheld wet cleaning device as described in claim 3, characterized in that, The water pump's liquid supply includes a first liquid supply and a second liquid supply, with the second liquid supply being greater than the first liquid supply. In the intelligent cleaning mode, the controller controls the suction motor to run at the first power while simultaneously controlling the water pump to supply liquid at the first liquid supply; the controller controls the suction motor to run at the second power while simultaneously controlling the water pump to supply liquid at the second liquid supply.

5. The handheld wet cleaning device as described in claim 4, characterized in that, The first liquid supply is the liquid supply of the water pump when it operates in the following mode: it operates in a periodic mode of working for a third time and shutting down for a fourth time, wherein the fourth time is longer than the third time. The second liquid supply is the liquid supply of the water pump when it operates in the following mode: it operates in a periodic mode of working for a fifth time and shutting down for a sixth time; wherein the sixth time is longer than the fifth time and the fourth time is longer than the third time.

6. The handheld wet cleaning device as described in any one of claims 1-4, characterized in that, It also includes a cleaning fluid detection device installed in the cleaning pipeline, configured to detect whether there is cleaning fluid flowing in the cleaning pipeline. When the cleaning fluid detection device detects that there is no cleaning fluid flowing in the cleaning pipeline, the controller controls the water pump to continue to work for a preset pumping time.

7. The handheld wet cleaning device as described in claim 6, characterized in that, The controller is configured to, upon determining that the cleaning fluid tank is low on cleaning fluid, control the water pump to operate in the following mode: a periodic operation mode of working for a first duration and stopping for a second duration.

8. The handheld wet cleaning device as described in claim 5, characterized in that, It also includes a cleaning fluid detection device installed in the cleaning pipeline, which is configured to detect whether there is cleaning fluid flowing in the cleaning pipeline. When the cleaning fluid detection device detects that there is no cleaning fluid flowing in the cleaning pipeline, the controller controls the water pump to continue to work for a preset pumping time. The controller is configured to, upon determining that the cleaning fluid tank is low on cleaning fluid, control the water pump to operate in the following mode: operating periodically for a first duration and stopping for a second duration; wherein the first duration is longer than the fifth duration.

9. The handheld wet cleaning device as described in claim 1 or 2, characterized in that, The cleaning mode includes a first cleaning mode, in which the controller controls the suction motor to run at a first power while simultaneously controlling the water pump to supply liquid at a first supply volume.

10. The handheld wet cleaning device as described in claim 1 or 2, characterized in that, The cleaning mode includes a second cleaning mode, in which the controller controls the suction motor to run at a second power, and simultaneously controls the water pump to supply liquid at a second supply volume.

11. The handheld wet cleaning device as described in claim 1 or 2, characterized in that, The cleaning mode includes a third cleaning mode, in which the controller controls the suction motor to run at a first power while simultaneously controlling the water pump to either not operate or controlling the water pump to supply liquid at a first supply volume.

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