Cleaning device and cleaning method

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

[0001] 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

[0002] As shown in Figure 1, the existing floor scrubber adopts the 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 Figure 1). The water is unevenly distributed in the area where the brush disc 2 is located. Combined with the rotation of the brush disc 2, the water distribution on the ground to be cleaned is uneven, and the cleaning effect is not ideal. If enough cleaning water is needed to ensure the cleaning effect, the ground to be cleaned needs to be distributed, which will result in a large amount of water consumption.

[0003] Summary of the Invention

[0004] The present application aims to provide a cleaning device that reduces water consumption without reducing the cleaning effect.

[0005] The embodiment of the present application provides a cleaning device, comprising:

[0006] main body;

[0007] a brush plate rotatably connected to the main body;

[0008] A front nozzle, the front nozzle being arranged at the front side of the brush disc, the liquid sprayed from the front nozzle being able to wet the cleaning area in front of the brush disc, the front nozzle being able to form a diffused water flow distributed perpendicular to the straight forward direction of the cleaning device; and

[0009] The brush plate water outlet is arranged on the brush plate, and the liquid sprayed from the brush plate water outlet can wet the cleaning area below the brush plate.

[0010] In at least one possible embodiment, a plurality of the front nozzles are provided, and the plurality of front nozzles are respectively located on the left and right sides of the brush plate in a radial direction parallel to the straight forward direction of the cleaning device.

[0011] In at least one possible embodiment, the front nozzle is arranged on each of the left and right sides of the brush plate in a radial direction parallel to the straight forward direction of the cleaning device, and the water mist sprayed by the front nozzle is radial and its projection in the vertical direction is circular, fan-shaped, rectangular or straight.

[0012] In at least one possible embodiment, the cleaning device further includes a speed sensor, which is installed on a wheel of the cleaning device and can detect a traveling speed of the cleaning device.

[0013] 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 and thereby adjust the water supply pressure and / or water flow of the water pump.

[0014] In at least one possible embodiment, 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.

[0015] 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, wherein the cleaning device includes a first working mode and a second working mode.

[0016] In the first working mode, the front nozzle sprays liquid, and the brush plate outlet does not spray liquid.

[0017] In the second working mode, the brush plate water outlet sprays liquid, and the front nozzle does not spray liquid.

[0018] In at least one possible embodiment, when the cleaning device is moving forward and the brush disc is rotating, the first working mode is used; when the cleaning device is stationary or nearly stationary and the brush disc is rotating, the second working mode is used.

[0019] 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.

[0020] 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; 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.

[0021] In at least one possible implementation, the first operating mode and the second operating mode can be automatically switched according to the contamination level of the cleaning area identified by the sensing device.

[0022] By adopting the above technical solution, the front nozzle can be used to spray water, so that the water is evenly distributed, and the water consumption is reduced without reducing the cleaning effect. When dealing with some localized areas with more stubborn stains, the brush plate outlet can be used to spray water to achieve better cleaning results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 shows a schematic diagram of water spray distribution of a conventional floor scrubber.

[0024] FIG2 shows a schematic structural diagram of a floor scrubber according to an embodiment of the present application.

[0025] 3 and 4 are schematic diagrams showing the bottom structure of a floor scrubber according to an embodiment of the present application.

[0026] 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.

[0027] FIG6 shows a schematic diagram of water spray distribution of a floor scrubber according to an embodiment of the present application.

[0028] FIG7 shows a working logic diagram of a cleaning method according to an embodiment of the present application.

[0029] Description of Reference Numerals

[0030] 1 Floor scrubber body

[0031] 2 brush plates 21 brush plate cover

[0032] 3 front nozzle 31 mounting bracket

[0033] 4 wiper brushes DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the above-mentioned purposes, features and advantages of the present application, this section describes in detail the specific embodiments of the present application in conjunction with the accompanying drawings. In addition to the various embodiments 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. Therefore, the present application is not limited to the specific embodiments disclosed in this section. The scope of protection of this application shall be based on the claims.

[0035] As shown in Figures 2 to 6, embodiments of the present application provide a cleaning device, which may be a floor scrubber for cleaning floors. The floor scrubber includes a floor scrubber body 1, a brush plate 2, a front nozzle 3, a brush plate water outlet, and a wiper brush 4. In other possible embodiments, the cleaning device may also be used in other scenarios.

[0036] The scrubber body 1 may include components such as a frame, a housing, and a drive unit. A brush disc 2 is rotatably connected to the bottom of the scrubber body 1, with the rotating shaft of the brush disc 2 extending vertically (up and down in Figure 2). A brush disc drive motor may be connected to the scrubber body 1, and the main shaft of the brush disc drive motor may be connected to the brush disc 2, thereby driving the brush disc 2 to rotate and clean the floor.

[0037] The floor scrubber body 1 may be equipped with a brush plate cover 21 , which may cover the upper portion and at least a portion of the outer peripheral edge of the brush plate 2 .

[0038] The front nozzle 3 can be arranged on the front side of the brush disc 2, and the wiper brush 4 can be arranged on the rear side of the brush disc 2. When the floor scrubber moves forward (to the left in Figures 2 and 3) and cleans, the front nozzle 3 can first spray cleaning liquid onto a designated area of ​​the floor, then the brush disc 2 passes over the area to scrub, and finally the wiper brush 4 passes over the area to scrape away the dirty cleaning liquid remaining on the floor, which is then collected by a recovery system including, for example, a vacuum device. It is understood that the cleaning liquid here can be water, and a detergent may or may not be added to the water.

[0039] As shown in Figure 5, the front nozzle 3 can be installed on the brush plate cover 21. The front nozzle 3 can be fixed to the top of the brush plate cover 21 using screws, nuts, etc. via a mounting bracket 31, for example. The mounting bracket 31 can be made of plastic or metal. The mounting bracket 31 can extend forward from the brush plate cover 21. There can be multiple front nozzles 3. For example, there can be two or two groups of front nozzles 3. The two or two groups of front nozzles 3 can be respectively arranged on the left and right sides of the brush plate 2 in a 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 can be provided with its own independent mounting bracket. 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). There can be only two front nozzles 3, and one front nozzle 3 is provided on each of the left and right sides of the brush plate 2 in a radial direction parallel to the straight forward direction of the cleaning device.

[0040] It can be understood that, referring to Figure 6, the front nozzle 3 can evenly spray the cleaning liquid on the ground in front of the brush disc 2. 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.

[0041] The bottom of the brush plate 2 is provided with circular bristles or brush cloth, and the brush plate water outlet can be located in the gap between the bristles or brush cloth. There can be one or more brush plate water outlets. In one example, multiple brush plate water outlets can be arranged in a circular shape and evenly distributed.

[0042] It is understood 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 disc 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.

[0043] 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.

[0044] The same floor scrubber can be equipped with different types of front nozzles 2 and brush plate water outlets. The floor scrubber can be equipped with a sensing device, such as a camera, which can identify the degree of dirtiness on the floor. 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 conserved. If stubborn stains are encountered, water is discharged through the brush plate outlet.

[0045] Furthermore, the floor scrubber may also include a heating module, which is installed in the water outlet pipe connected to the front nozzle and / or the brush plate outlet. The heating module can be an instant heating device, which can cause the front nozzle and / or the brush plate outlet to spray heated cleaning liquid, achieving a better cleaning effect.

[0046] The wheels of the floor scrubber (such as the driving wheels) can be provided with speed sensors such as Hall sensors. The Hall sensors can detect the forward speed of the floor scrubber and feed it 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.

[0047] 7 , the present application proposes a cleaning method for a floor scrubber.

[0048] First, determine whether the scrubber is moving forward and whether the brush disc is rotating.

[0049] If the floor scrubber is moving forward and the brush disc is rotating, the floor 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 disc water outlet does not spray water.

[0050] If the floor scrubber does not move forward and the brush disc rotates, the floor scrubber can operate in the second working mode, the water pump and the solenoid valve can control the brush disc outlet to spray water, and the front nozzle 2 does not spray water.

[0051] If the brush disc does not rotate, no matter whether the scrubber is moving forward or not, the water pump is turned off, and the front nozzle 2 and the brush disc water outlet do not spray water.

[0052] 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 the 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.

[0053] If you need to clean a stubborn ground stain, 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 this application can save up to 30% of water compared to the solution of only using the brush plate to discharge water.

[0054] The Hall sensor detects the movement state. When the floor scrubber 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), it can automatically switch the cleaning mode to the second working mode, 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.

[0055] The floor scrubber and the cleaning method for the floor scrubber of the present application can achieve the following beneficial effects.

[0056] (1) During daily cleaning, use the front nozzle 3 to spray water to save water. When dealing with some local areas with stubborn stains on the ground, switch to the brush plate outlet to spray water to achieve better cleaning results. The cleaning solution is more scientific and can be applied in more diverse scenarios. With the same amount of water, a better cleaning effect can be achieved, or less water can be used to achieve the same cleaning effect, thereby saving water and extending the single working time of the floor scrubber.

[0057] (2) The sensing device can adjust the water output by sensing the degree of dirtiness on the ground, so as to achieve efficient use of cleaning fluid and save water.

[0058] Of course, the present application is not limited to the above embodiments. Those skilled in the art can make various modifications to the above embodiments of the present application under the guidance of the present application without departing from the scope of the present application.

[0059] (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 equipment as long as it can wet the ground in front of the brush plate.

[0060] (2) The front nozzle is not limited to spraying water, but can also wet the ground by dripping, brushing, etc.

[0061] It should be understood that at least some aspects or features of the above-mentioned embodiments, examples or examples may be appropriately combined.

[0062] It is understood that in this application, when the number of parts or components is not specifically limited, the number may be one or more, and the term "plurality" herein refers to two or more. Where the number of parts or components is shown in the drawings and / or described in the specification as a specific number, such as two, three, or four, the specific number is generally illustrative and not restrictive, and may be understood as a plurality, i.e., two or more. However, this does not mean that this application excludes the case of one.

[0063] In this application, unless otherwise clearly stated or limited, terms such as "install", "assemble", "connect", "connect", "couple", "link", "abut", "connect", "interconnect", "communicate", "conduct", "fix", "fasten", etc. should be understood in a broad sense, for example, they can be direct or indirect. For example, with respect to 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 a direct connection or an indirect connection 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, with respect to connectivity / conduction, it can be direct connectivity / conduction or indirect connectivity / conduction through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0064] In the present application, unless otherwise clearly stated or limited, a component provided 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.

[0065] While the present application has been described in detail using the above-described embodiments, it will be apparent 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 modified embodiments without departing from the subject matter and scope of the present application as defined by the claims. Therefore, the descriptions in this specification are for illustrative purposes only and do not have any limiting meaning with respect to the present application.

Claims

1. A cleaning device, characterized in that: include: 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 able to wet the cleaning area at the front side of the brush plate (2), and the front nozzle (3) being able to form a diffused water flow distributed along a direction perpendicular to the straight forward direction of the cleaning device; as well as 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).

2. The cleaning device according to claim 1, 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.

3. The cleaning device according to claim 1, characterized in that: The front nozzle (3) is arranged one 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. 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.

4. The cleaning device according to claim 1, characterized in that: The cleaning device further comprises a speed sensor mounted on a wheel of the cleaning device, and the speed sensor is capable of detecting a traveling speed of the cleaning device.

5. The cleaning device according to claim 1, characterized in that: The front nozzle (3) and the brush plate water outlet are connected to a water pump. 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.

6. The cleaning device according to claim 1, characterized in that The cleaning device further comprises a heating module, which is arranged on a water outlet pipe connected to the front nozzle (3) and / or the water outlet of the brush plate.

7. A cleaning method, characterized in that: Use of the cleaning device according to any one of claims 1 to 4 and claim 6, 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.

8. The cleaning method according to claim 7, 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.

9. The cleaning method according to claim 7, characterized in that: The first working mode and the second working mode can be automatically switched according to a traveling state of the cleaning device.

10. A cleaning method, characterized in that: Using the cleaning device as claimed in claim 5, 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.

11. The cleaning method according to claim 10, 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; 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.

12. The cleaning method according to claim 10, 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.

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