WO2025092704A1 - Cleaning device and cleaning method - Google Patents

Abstract

A cleaning device and a cleaning method. The cleaning device comprises: a main body (1); a brush disc (2), wherein the brush disc (2) is rotatably connected to the main body (1); a front nozzle (3), wherein the front nozzle (3) is arranged on the front side of the brush disc (2), a liquid sprayed from the front nozzle (3) can wet a cleaning area on the front side of the brush disc (2), and the front nozzle (3) can form diffused water flow distributed in a linear advancing direction perpendicular to the cleaning device; and a brush disc water outlet, wherein the brush disc water outlet is formed on the brush disc (2), and a liquid sprayed from the brush disc water outlet can wet a cleaning area below the brush disc (2).

Description

Cleaning equipment and cleaning methods Technical Field

The present application belongs to the technical field of cleaning products, and in particular relates to a cleaning device and a cleaning method.

Background Art

As shown in FIG1 , the existing floor scrubber adopts a brush disc water discharge method. When the floor scrubber moves forward, most of the water flowing out from the bottom surface of the brush disc 2 will pass through the rear part of the brush disc (the lower side of FIG1 ). The water volume is unevenly distributed in the area where the brush disc 2 is located. Combined with the rotation of the brush disc 2, the water volume on the ground to be cleaned is unevenly distributed, and the cleaning effect is not ideal. If sufficient cleaning water is required to ensure the cleaning effect, a large amount of water will be consumed.

Summary of the invention

The present application aims to provide a cleaning device that reduces water consumption without reducing the cleaning effect.

The embodiment of the present application provides a cleaning device, comprising:

main body;

A brush plate rotatably connected to the main body;

A front nozzle, the front nozzle is arranged at the front side of the brush plate, the liquid sprayed from the front nozzle can wet the cleaning area on the front side of the brush plate, and the front nozzle can form a diffused water flow distributed along a direction perpendicular to the straight forward direction of the cleaning device; and

A brush plate water outlet is provided on the brush plate, and liquid sprayed from the brush plate water outlet can wet the cleaning area below the brush plate.

In at least one possible implementation, a plurality of the front nozzles are provided, and the plurality of the front nozzles are respectively located on left and right sides of the brush plate in a radial direction parallel to a straight forward direction of the cleaning device.

In at least one possible embodiment, the front nozzle is located between the brush plate and the cleaning One is arranged on each of the left and right sides of the radial direction parallel to the straight forward direction of the equipment. The water mist sprayed by the front nozzle is radial and its projection in the vertical direction is circular, fan-shaped, rectangular or linear.

In at least one possible implementation, the cleaning device further includes a speed sensor, which is mounted on a wheel of the cleaning device and can detect a traveling speed of the cleaning device.

In at least one possible embodiment, the front nozzle and the brush plate water outlet are connected to a water pump, and the cleaning device also includes a sensing device, which can identify the degree of dirtiness of the cleaning area, thereby adjusting the water supply pressure and/or water flow of the water pump.

In at least one possible implementation, the cleaning device further includes a heating module, and the heating module is disposed in a water outlet pipe connected to the front nozzle and/or the water outlet of the brush plate.

The embodiment of the present application further proposes a cleaning method, characterized in that the cleaning device described in any one of the above technical solutions is used, and the cleaning device includes a first working mode and a second working mode.

In the first working mode, the front nozzle sprays liquid, and the brush plate water outlet does not spray liquid.

In the second working mode, the brush plate water outlet sprays liquid, and the front nozzle does not spray liquid.

In at least one possible implementation, when the cleaning device is in a forward moving state and the brush disc is rotating, the first working mode is used, and when the cleaning device is in a stationary or nearly stationary state and the brush disc is rotating, the second working mode is used.

In at least one possible implementation, the first working mode and the second working mode can be automatically switched according to a traveling state of the cleaning device.

In at least one possible embodiment, when the sensing device identifies that the concentration of ground particles per unit area of the cleaning area is less than or equal to a preset value for light dirt or moderate dirt, the first working mode is used, and when the sensing device identifies that the concentration of ground particles per unit area of the cleaning area is greater than a preset value for heavy dirt, the second working mode is used.

In at least one possible implementation, the first working mode and the second working mode The cleaning area can be automatically switched according to the dirtiness of the cleaning area identified by the sensing device.

By adopting the above technical solution, the water can be evenly distributed by spraying water with the front nozzle, and the water consumption can be reduced without reducing the cleaning effect. When dealing with some local areas with stubborn stains, use the brush plate water outlet to spray water to achieve a better cleaning effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a schematic diagram of water spray distribution of a conventional floor scrubber.

FIG2 shows a schematic structural diagram of a floor scrubber according to an embodiment of the present application.

3 and 4 are schematic diagrams showing the bottom structure of a floor scrubber according to an embodiment of the present application.

FIG5 shows a schematic structural diagram of a brush plate and a front nozzle of a floor scrubber according to an embodiment of the present application.

FIG6 shows a schematic diagram of water spray distribution of a floor scrubber according to an embodiment of the present application.

FIG. 7 shows a working logic diagram of a cleaning method according to an embodiment of the present application.

Description of Reference Numerals

1 Floor scrubber body

2 brush plate 21 brush plate cover

3 front nozzle 31 mounting bracket

4 wiper brush

DETAILED DESCRIPTION

In order to more clearly explain the above-mentioned purposes, features and advantages of the present application, the specific implementation methods of the present application are described in detail in this section in conjunction with the accompanying drawings. In addition to the various implementation methods described in this section, the present application can also be implemented in other different ways. Without violating the spirit of the present application, those skilled in the art can make corresponding improvements, deformations and substitutions, so the present application is not limited by the specific embodiments disclosed in this section. The scope of protection of the present application shall be subject to the claims.

As shown in FIGS. 2 to 6 , the embodiment of the present application provides a cleaning device, which may be a floor scrubber for cleaning the floor, and the floor scrubber includes a floor scrubber body 1, a brush plate 2, and a front nozzle. 3. Brush plate water outlet and wiper brush 4. In other possible implementations, the cleaning device can also be used in other scenarios.

The floor scrubber body 1 may include a frame, a housing, a drive unit and other components of the floor scrubber. The brush disc 2 is rotatably connected to the bottom of the floor scrubber body 1, and the rotating shaft of the brush disc 2 extends in the vertical direction (the up and down direction of FIG. 2 ). The brush disc drive motor may be connected to the floor scrubber body 1, and the main shaft of the brush disc drive motor may be connected to the brush disc 2, so that the brush disc drive motor can drive the brush disc 2 to rotate to clean the floor.

The floor scrubber body 1 may be equipped with a brush disc cover 21 , and the brush disc cover 21 may cover the upper portion and at least a portion of the outer peripheral edge of the brush disc 2 .

The front nozzle 3 can be arranged at the front side of the brush plate 2, and the wiper brush 4 can be arranged at the rear side of the brush plate 2. When the floor scrubber moves forward (left side of Figures 2 and 3) and cleans, the front nozzle 3 can first spray cleaning liquid to a designated area of the ground, and then the brush plate 2 brushes the area, and finally the wiper brush 4 scrapes the dirty cleaning liquid remaining on the ground through the area, and collects it by a recovery system including, for example, a vacuum device. It can be understood that the cleaning liquid here can be water, and a detergent can be added or not added to the water.

As shown in FIG5 , the front nozzle 3 can be mounted on the brush plate cover 21. The front nozzle 3 can be fixed on the top of the brush plate cover 21, for example, by using screws, nuts, etc. via the mounting bracket 31. The mounting bracket 31 can be made of plastic or metal. The mounting bracket 31 can extend forward from the brush plate cover 21. A plurality of front nozzles 3 can be provided. For example, two or two groups of front nozzles 3 can be provided. The two or two groups of front nozzles 3 can be respectively provided on the left and right sides of the brush plate 2 in the radial direction parallel to the straight forward direction of the cleaning device. Multiple front nozzles 3 can be connected to the same mounting bracket or each independent mounting bracket can be provided. In this embodiment, the front nozzle 3 can form a diffused water flow distributed along the width direction of the cleaning device (i.e., perpendicular to the straight forward direction of the cleaning device). The front nozzle 3 can be provided with only two, and one front nozzle 3 is provided on each of the left and right sides of the brush plate 2 in the radial direction parallel to the straight forward direction of the cleaning device.

It can be understood that, referring to FIG. 6 , the front nozzle 3 can spray the cleaning liquid evenly on the ground in front of the brush disc 2 , and the cleaning liquid has been evenly distributed on the ground, so the forward movement of the floor scrubber and the rotation of the brush disc 2 will not affect the cleaning effect.

The bottom of the brush plate 2 is provided with circular bristles or brush cloth, and the water outlet of the brush plate can be located in the gap between the bristles or brush cloth. There can be one or more water outlets of the brush plate. In one example, multiple water outlets of the brush plate can be arranged in a circular shape and evenly distributed.

It is understandable that the present application does not limit the specific form of the front nozzle 2. The front nozzle 2 can spray the cleaning liquid into a radial water mist, and the projection of the shape of the water mist in the vertical direction can be circular, fan-shaped, rectangular or linear. The diffused water flow distributed in the width direction (i.e., perpendicular to the straight forward direction of the cleaning equipment) formed by a single front nozzle 3 can cover or substantially cover the radius of the brush plate 2. Therefore, under the premise of evenly wetting the ground without affecting the cleaning effect, less water can be used, saving water and extending the battery life. Of course, the present application is not limited to this, and the cleaning liquid can also flow out in the form of water droplets or water streams.

The front nozzle 2 and the brush plate water outlet can be connected to a water pump, and the cleaning liquid in the water tank is sprayed out through the front nozzle 2 and the brush plate water outlet by the water pump. The solenoid valve can be used to control the front nozzle 2 or the brush plate water outlet to spray the cleaning liquid.

In the same floor scrubber, different types of front nozzles 2 and brush plate water outlets can be provided. The floor scrubber can be provided with a sensing device such as a camera, through which the degree of dirtiness of the floor can be identified. According to the degree of dirtiness, the floor scrubber can adjust the output power of the water pump, the water flow rate, and the number and type of nozzles used, so that the cleaning liquid is fully utilized and water is saved. If stubborn stains are encountered, water is discharged from the brush plate outlet.

Furthermore, the floor scrubber may further include a heating module, which is disposed in a water outlet pipe connected to the front nozzle and/or the brush plate outlet. The heating module may be an instant heating device, through which the front nozzle and/or the brush plate outlet may spray heated cleaning liquid, thereby achieving a better cleaning effect.

The wheels of the floor scrubber (such as driving wheels) can be provided with speed sensors such as Hall sensors, which can detect the forward speed of the floor scrubber and feed back to the central control unit. The central control unit can send a signal to control the working state of the water pump or solenoid valve, thereby switching the working mode.

7 , the present application proposes a cleaning method for a floor scrubber.

First, determine whether the floor scrubber is moving forward and whether the brush disc is rotating.

If the scrubber is moving forward and the brush disc is rotating, the scrubber can operate in the first operating mode. The water pump and the solenoid valve can control the front nozzle 2 to spray water, and the brush plate outlet does not spray water.

If the floor scrubber does not move forward and the brush disc rotates, the floor scrubber can operate in the second operating mode, the water pump and the solenoid valve can control the brush disc water outlet to spray water, and the front nozzle 2 does not spray water.

If the brush plate does not rotate, no matter whether the floor scrubber moves forward or not, the water pump is turned off, and the front nozzle 2 and the brush plate water outlet do not spray water.

The floor scrubber can also automatically select the working mode based on the recognition feedback of the cleaning area by the sensing device. For example, when the sensing device recognizes that the concentration of ground particles per unit area of the cleaning area is less than or equal to a preset value, the floor scrubber can automatically select the daily cleaning mode (first working mode), and the floor scrubber can move forward at a normal speed. The solenoid valve can control the front nozzle 3 to spray cleaning liquid so that the cleaning liquid is evenly distributed on the floor in front of the brush disc, thereby reducing water consumption without reducing the cleaning effect.

If you need to clean a stubborn stain on the ground, the daily cleaning mode may not have an ideal cleaning effect in a single stroke. When the sensing device identifies that the concentration of ground particles per unit area of the cleaning area is greater than the preset value, the floor scrubber can automatically switch the working mode according to the dirtiness of the cleaning area identified by the sensing device. The floor scrubber can stop moving and switch to the key area cleaning mode (the second working mode). The solenoid valve controls the brush plate water outlet to spray water, focusing on the cleaning area below the brush plate 2 to remove stubborn stains and achieve a better cleaning effect. The concentration of ground particles per unit area can reflect the degree of aggregation or dispersion of particles (stains). The above preset value can be set during the product production process or adjusted by the user. Experimental verification shows that the combination of the front nozzle and the brush plate water outlet of the present application can save up to 30% water compared to the solution of only using the brush plate to discharge water.

By detecting the movement state through the Hall sensor, the floor scrubber can automatically switch the cleaning mode to the second working mode when it stops moving (including moving at a very low speed, that is, close to a stationary state, for example, moving within 0.1 meters per second), that is, spraying water from the brush plate outlet to focus on cleaning stubborn stains, without the need for manual operation to switch the working mode.

The floor scrubber and the cleaning method for the floor scrubber of the present application can achieve the following beneficial effects.

(1) During daily cleaning, use the front nozzle 3 to spray water to save water. When dealing with some stubborn stains on the ground, switch to the brush plate outlet to spray water to achieve Better cleaning effect, more scientific cleaning scheme, more diverse application scenarios. Better cleaning effect can be achieved with the same amount of water, or the same cleaning effect can be achieved with less water, thus saving water and extending the single working time of the floor scrubber.

(2) The sensing device can adjust the water output by sensing the degree of dirt on the ground, thereby achieving efficient use of cleaning fluid and saving water.

Of course, the present application is not limited to the above-mentioned embodiments. Under the guidance of the present application, those skilled in the art may make various modifications to the above-mentioned embodiments of the present application without departing from the scope of the present application.

(1) In the above embodiment, the front nozzle 3 is installed on the brush plate cover 21, but the present application is not limited thereto. The front nozzle 3 can be installed on other components of the cleaning device as long as the ground in front of the brush plate can be wetted.

(2) The front nozzle is not limited to spraying water, but can also wet the ground by dripping, brushing, etc.

It should be understood that at least some aspects or features of the above-mentioned implementation modes, embodiments or examples may be appropriately combined.

It is understood that in the present application, when the number of parts or components is not particularly limited, the number may be one or more, and the multiple here means two or more. For the case where the number of parts or components shown in the drawings and/or described in the specification is a specific number such as two, three, four, etc., the specific number is usually exemplary and not restrictive, and it can be understood as multiple, that is, two or more, but this does not mean that the present application excludes the case of one.

In the present application, unless otherwise clearly stated or limited, terms such as “installation”, “assembly”, “connection”, “connection”, “coupling”, “connection”, “abutment”, “communication”, “intercommunication”, “conduction”, “fixation”, and “fastening” should be understood in a broad sense, for example, they can be direct or indirect. For example, regarding connection, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly stated or limited. For example, regarding connectivity/conduction, it can be direct connectivity/conduction or indirect connectivity/conduction via an intermediate medium. For ordinary technicians in this field, it can be understood according to the specific circumstances. Please understand the specific meaning of the above terms in this application.

In the present application, unless otherwise clearly stated or limited, a component disposed on/installed on/located on/accommodated on/placed in, within, inside, etc. another component may be any of the following two situations: a part or most of the one component is located in the other component; and the one component is completely accommodated in the other component.

Although the present application is described in detail using the above-mentioned embodiments, it is obvious to those skilled in the art that the present application is not limited to the embodiments described in this specification. The present application can be modified and implemented as a modified embodiment without departing from the subject matter and scope of the present application as determined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning for the present application.

Claims (12)

A cleaning device, characterized in that it comprises: main body; A brush plate (2), the brush plate (2) being rotatably connected to the main body; a front nozzle (3), the front nozzle (3) being arranged at the front side of the brush plate (2), the liquid sprayed from the front nozzle (3) being capable of wetting the cleaning area at the front side of the brush plate (2), the front nozzle (3) being capable of forming a diffused water flow distributed along a direction perpendicular to the straight forward direction of the cleaning device; and A brush plate water outlet, wherein the brush plate water outlet is arranged on the brush plate (2), and liquid sprayed from the brush plate water outlet can wet the cleaning area below the brush plate (2). The cleaning device according to claim 1 is characterized in that a plurality of the front nozzles (3) are provided, and the plurality of the front nozzles (3) are respectively located on the left and right sides of the brush disc (2) in a radial direction parallel to the straight forward direction of the cleaning device. The cleaning device according to claim 1 is characterized in that the front nozzle (3) is arranged on each of the left and right sides of the brush disc (2) in a radial direction parallel to the straight forward direction of the cleaning device, and the water mist sprayed by the front nozzle (3) is radial and its projection in the vertical direction is circular, fan-shaped, rectangular or linear. The cleaning device according to claim 1 is characterized in that the cleaning device also includes a speed sensor, which is installed on the wheel of the cleaning device and can detect the travel speed of the cleaning device. The cleaning device according to claim 1 is characterized in that the front nozzle (3) and the brush plate water outlet are connected to a water pump, and the cleaning device also includes a sensing device, which can identify the degree of dirtiness of the cleaning area, thereby adjusting the water supply pressure and/or water flow of the water pump. The cleaning device according to claim 1 is characterized in that the cleaning device also includes a heating module, and the heating module is arranged on a water outlet pipe connected to the front nozzle (3) and/or the brush plate water outlet. A cleaning method, characterized in that the cleaning device according to any one of claims 1 to 4 and claim 6 is used, wherein the cleaning device comprises a first working mode and a second working mode, In the first working mode, the front nozzle sprays liquid, and the brush plate water outlet does not spray liquid. In the second working mode, the brush plate water outlet sprays liquid, and the front nozzle does not spray liquid. The cleaning method according to claim 7 is characterized in that the first working mode is used when the cleaning device is in a forward moving state and the brush plate is rotating, and the second working mode is used when the cleaning device is in a stationary or nearly stationary state and the brush plate is rotating. The cleaning method according to claim 7 is characterized in that the first working mode and the second working mode can be automatically switched according to the traveling state of the cleaning device. A cleaning method, characterized in that the cleaning device described in claim 5 is used, wherein the cleaning device comprises a first working mode and a second working mode, In the first working mode, the front nozzle sprays liquid, and the brush plate water outlet does not spray liquid. In the second working mode, the brush plate water outlet sprays liquid, and the front nozzle does not spray liquid. The cleaning method according to claim 10 is characterized in that when the sensing device identifies that the concentration of ground particles per unit area of the cleaning area is less than or equal to a preset value, the first working mode is used, and when the sensing device identifies that the concentration of ground particles per unit area of the cleaning area is greater than a preset value, the second working mode is used. The cleaning method according to claim 10 is characterized in that the first working mode and the second working mode can be automatically switched according to the dirtiness of the cleaning area identified by the sensing device.