Floor brush and surface cleaning device

Abstract

The floor brush comprises a rolling brush (1) and an electric motor (2), the electric motor (2) drives the rolling brush (1) to rotate, the floor brush further comprises an ultraviolet disinfection lamp (3) located in the circumferential direction of the rolling brush (1), the positive electrode of the ultraviolet disinfection lamp (3) is electrically connected with the positive electrode of the electric motor (2), and the negative electrode of the ultraviolet disinfection lamp (3) is electrically connected with the negative electrode of a power source. When the positive electrode of the electric motor (2) is powered off to stop working of the electric motor (2), the positive electrode of the ultraviolet disinfection lamp (3) is powered off to stop disinfection of the rolling brush (1) at the same time; the floor brush can be disinfected in real time and is simple in structure; the invention further provides a surface cleaning device which adopts the floor brush and is beneficial to sanitation.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, in particular to a floor brush and a surface cleaning device. Background Art

[0002] There is a surface cleaning device with a floor brush, such as a floor scrubber, a vacuum cleaner, etc. The floor brush is generally provided with a roller brush, and the cleaning efficiency is improved by the rotation of the roller brush. Because of this, the roller brush is in continuous contact with dirt, and the dirt will accumulate on the roller brush.

[0003] Especially for surface cleaning devices such as floor scrubbers, since they improve cleaning efficiency by spraying water, the roller brush is a wet roller brush, which is dirtier and more prone to breeding bacteria. In order to solve this problem, a self-cleaning solution is provided to clean the roller brush. In the self-cleaning solution, the roller brush itself is cleaned through the steps of washing, drying and disinfection. After this series of steps, it is naturally considered to be relatively clean. The above practice is also the current common practice.

[0004] The applicant has noticed that the current disinfection structure is located in the base station and cannot perform disinfection in real time. Therefore, the applicant proposes a floor brush that can perform disinfection in real time and has a simple and reliable structure. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a floor brush that can perform disinfection in real time and has a simple structure; and also provide a surface cleaning device that uses the aforementioned floor brush to facilitate hygiene.

[0006] Compared with the prior art, the present invention proposes a floor brush, including a roller brush and an electric motor, the electric motor drives the roller brush to rotate, and also includes an ultraviolet disinfection lamp located in the circumference of the roller brush, the positive pole of the ultraviolet disinfection lamp is electrically connected to the positive pole of the electric motor, and the negative pole of the ultraviolet disinfection lamp is electrically connected to the negative pole of the power supply. When the positive pole of the electric motor is energized to make the electric motor work, the positive pole of the ultraviolet disinfection lamp is energized at the same time to disinfect the rotating roller brush. When the positive pole of the electric motor is de-energized to make the electric motor stop working, the positive pole of the ultraviolet disinfection lamp is de-energized at the same time to stop disinfecting the roller brush.

[0007] After adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0008] The operation of the ultraviolet disinfection lamp is synchronized with the rotation of the roller brush, so that disinfection can be carried out in real time. In addition, due to the synchronization, the uniformity of the roller brush disinfection is better. In addition, as long as the roller brush stops rotating, the ultraviolet disinfection lamp is turned off. On the one hand, the need to set up a structure to turn off the ultraviolet disinfection lamp in the prior art is reduced, thereby simplifying the structure. On the other hand, the ultraviolet disinfection lamp is turned off immediately to reduce energy consumption.

[0009] In some embodiments, the roller brush includes a roller brush frame and an upper cover, the roller brush frame forms an opening for installing the roller brush, the upper cover covers the opening, the roller brush is detachably installed in the opening, the upper cover is arranged along the length direction of the roller brush, and a light board arranged along the length direction of the roller brush is installed in the upper cover, and a plurality of ultraviolet disinfection lamps are installed in the light board.

[0010] In some embodiments, the roller brush rack is detachably connected to the upper cover, and a detachable electrical connection structure is provided between the roller brush rack and the upper cover, the detachable electrical connection structure includes a first positive electrode, a first negative electrode, a second positive electrode and a second negative electrode, the first positive electrode and the first negative electrode are provided on the upper cover, the first positive electrode and the first negative electrode are electrically connected to the ultraviolet disinfection lamp respectively, the second positive electrode and the second negative electrode are provided on the roller brush rack, the second positive electrode is electrically connected to the positive electrode of the electric motor, and the second negative electrode is electrically connected to the negative electrode of the power supply, when the roller brush rack is connected to the upper cover, the first positive electrode is electrically connected to the second positive electrode, and the first negative electrode is electrically connected to the second negative electrode, when the roller brush rack is separated from the upper cover, the first positive electrode is separated from the second positive electrode, and the first negative electrode is separated from the second negative electrode.

[0011] In some embodiments, the first positive electrode and the first negative electrode are both arranged on the inner side surface of the upper cover facing the upper side surface of the roller brush frame, and the second positive electrode and the second negative electrode are both arranged on the upper side surface of the roller brush frame. The upper cover and the roller brush frame are detachably connected up and down. When the upper cover and the roller brush frame are connected up and down, the first positive electrode and the second positive electrode are electrically connected, and the first negative electrode and the second negative electrode are electrically connected. When the upper cover and the roller brush frame are separated up and down, the first positive electrode and the second positive electrode are separated, and the first negative electrode and the second negative electrode are electrically separated.

[0012] In some embodiments, a light guide plate is installed in the lighting direction of the ultraviolet disinfection lamp, and the light guide plate is used to diffuse the disinfection light of the ultraviolet disinfection lamp.

[0013] In some embodiments, the light guide plate is a strip-shaped light guide plate arranged along the length direction of the roller brush.

[0014] In some embodiments, the roller brush includes a roller brush frame and an upper cover, the roller brush frame forms an opening for installing the roller brush, the upper cover covers the opening, the roller brush is detachably installed in the opening, the upper cover is arranged along the length direction of the roller brush, a light board arranged along the length direction of the roller brush is installed in the upper cover, a plurality of ultraviolet disinfection lamps are installed on the light board, the upper cover is provided with an installation opening arranged along the length direction of the roller brush and passing through up and down, a light guide plate is installed at the lower end of the installation opening, and a light board is installed at the upper end of the installation opening, and the light guide plate and the light board are arranged at an interval up and down.

[0015] In some embodiments, the light guide plate is extruded and fit with the outer periphery of the roller brush.

[0016] In some embodiments, it also includes a water spray part and a scraper plate. The scraper plate, water spray part, and ultraviolet disinfection lamp are arranged in sequence along the rotation direction of the roller brush. Before the water spray part sprays water, the scraper plate first cleans the roller brush, and the cleaned part of the roller brush then passes through the water spray part to be sprayed with water for humidification.

[0017] In some embodiments, a water baffle is also included. The scraper plate, the water spray part, the water baffle, and the ultraviolet disinfection lamp are arranged in sequence along the rotation direction of the roller brush. The water baffle also serves as a partition that separates the water spray part from the ultraviolet disinfection lamp.

[0018] In some embodiments, in the case of a light guide plate, the light guide plate is disposed in contact with the outer periphery of the roller brush, and the light guide plate is cleaned by the outer periphery cleaned by the scraper plate.

[0019] In some embodiments, a switch and a base station for adapting a floor brush are further included, and the switch can selectively connect the battery power supply of the surface cleaning device and the base station power supply.

[0020] In some embodiments, the base station is provided with a trigger structure, which automatically triggers the switching switch to selectively connect the base station to power supply.

[0021] In some embodiments, a base station is also included for adapting to the floor brush. The base station is provided with a positive power supply electrode and a negative power supply electrode. When the floor brush is connected to the base station, the positive pole of the electric motor is electrically connected to the positive power supply electrode, and the negative pole of the ultraviolet disinfection lamp is electrically connected to the negative power supply electrode. The ultraviolet disinfection lamp and the electric motor are both powered by the base station.

[0022] In some embodiments, the floor brush includes a positive charging electrode and a negative charging electrode. When the floor brush is connected to the base station, the positive charging electrode is electrically connected to the positive power supply electrode, and the negative charging electrode is electrically connected to the negative power supply electrode. The floor brush supplies power to charge the battery of the surface cleaning device.

[0023] The present invention also provides a surface cleaning device provided with the above-mentioned floor brush.

[0024] The beneficial effect of the above technical solution is that it is beneficial to hygiene. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of a floor brush.

[0026] Figure 2 It is a three-dimensional schematic diagram of a floor brush with the upper cover removed.

[0027] Figure 3 The figure is a three-dimensional schematic diagram of a top cover from a bottom view.

[0028] Figure 4 It is a three-dimensional schematic diagram mainly showing the light board.

[0029] Figure 5 It is a three-dimensional schematic diagram mainly showing the light guide plate.

[0030] Figure 6 This is a bottom view of a floor brush.

[0031] Figure 7 The present invention is a top view of a floor brush with the upper cover removed.

[0032] Figure 8 It is the AA section view.

[0033] Fig. 9 It is a BB section view.

[0034] Fig.10 It is a three-dimensional schematic diagram after removing the roller brush.

[0035] Fig.11 The figure is a three-dimensional schematic diagram of a floor brush connected to a base station.

[0036] Fig.12 The figure is a three-dimensional schematic diagram of a base station.

[0037] Explanation of the reference numerals: 1-roller brush, 2-electric motor, 3-ultraviolet disinfection lamp, 4-upper cover, 5-roller brush holder, 6-lamp board, 7-light guide plate, 8-installation port, 9-water spray part, 10-water baffle, 11-periphery, 12-base station, 13-negative power supply electrode, 14-positive charging electrode, 15-negative charging electrode, 16-positive power supply electrode, 17-plug interface, 18-tongue, 19-plug column, 20-unlocking button, 21-first positive electrode, 22-first negative electrode, 23-second positive electrode, 24-second negative electrode, 25-card slot, 26-wire, 27-fixing card, 28-suction port, 29-cover plate, 30-scraper plate. DETAILED DESCRIPTION

[0038] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0039] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0040] This example mainly uses a household floor scrubber as an example, but is not limited to a household floor scrubber. Any surface cleaning device that is suitable for the floor brush disclosed herein can be used.

[0041] As you can imagine, a floor scrubber can be either a wirelessly powered or wired powered device. Wireless power is currently the mainstream and is not bound by cables. Wireless power is battery-powered.

[0042] Embodiment 1:

[0043] like Figure 1 , 7 , 8, 9, and 10 show a floor brush of a surface cleaning device, comprising a roller brush 1 and an electric motor 2, wherein the electric motor 2 drives the roller brush 1 to rotate, and further comprising an ultraviolet disinfection lamp 3 located in the circumference of the roller brush 1, wherein the positive pole of the ultraviolet disinfection lamp 3 is electrically connected to the positive pole of the electric motor 2, and the negative pole of the ultraviolet disinfection lamp 3 is electrically connected to the negative pole of the power supply, when the positive pole of the electric motor 2 is energized to make the electric motor 2 work, the positive pole of the ultraviolet disinfection lamp 3 is energized at the same time to disinfect the rotating roller brush 1, and when the positive pole of the electric motor 2 is de-energized to make the electric motor 2 stop working, the positive pole of the ultraviolet disinfection lamp 3 is de-energized at the same time to stop disinfecting the roller brush 1.

[0044] Generally speaking, the general technical personnel in the industry design disinfection solutions mainly by making the disinfection structure on the base station 12, and disinfecting when cleaning the roller brush 1 on the base station 12. The base station 12 is continuously powered by an external power supply and does not consume the battery power. In the present disclosure, the floor brush can be disinfected in real time during the surface cleaning process of the surface cleaning device. Although it will increase power consumption, it brings additional benefits. Specifically, the roller brush 1 will contaminate each other when cleaning the surface. Then, when the roller brush 1 carries more bacteria, these bacteria will be spread on the cleaned surface through the roller brush 1, that is, everywhere. Then, the disinfected roller brush 1 can be used to clean the surface, which can alleviate this phenomenon and is beneficial to hygiene. Although it increases power consumption, this power consumption is valuable.

[0045] To further improve hygiene, Figure 8 , 9 , 10, it also includes a water spray part 9 and a scraper plate 30. The scraper plate 30, the water spray part 9, and the ultraviolet disinfection lamp 3 are arranged in sequence along the rotation direction of the roller brush 1. After such a design, the scraper plate 30 treats the roller brush 1 before disinfecting it, which is conducive to improving the disinfection efficiency, so that the outer periphery 11 of the surface cleaned by the roller brush 1 is cleaner. In order to improve the cleaning efficiency, the suction port 28 is arranged near the scraper plate 30, so that the sewage generated by the scraper plate 30 is efficiently sucked away by the suction port 28, which improves the cleaning efficiency on the one hand, and on the other hand, the generated sewage is not easy to fall on the cleaned surface and dirty the cleaned surface.

[0046] The dirty water scraped off by the roller brush 1 by the scraping plate 30 is sucked away through the suction port 28 and enters the water-gas separation structure of the surface cleaning device.

[0047] In order to reduce the influence of the water spraying part 9 on the disinfection structure, Fig. 9 , 10 As shown, the water baffle 10 is also included, and the dirt scraping plate 30, the water spraying part 9, the water baffle 10, and the ultraviolet disinfection lamp 3 are arranged in sequence along the rotation direction of the roller brush 1. The water baffle 10 also serves as a partition separating the water spraying part 9 from the ultraviolet disinfection lamp 3, so that the water baffle 10 can be shielded. The water baffle 10 is also helpful in preventing the water on the roller brush 1 from being thrown forward to the outside.

[0048] In some embodiments, Figure 3 As shown, a light guide plate 7 is installed in the illumination direction of the ultraviolet disinfection lamp 3, and the light guide plate 7 is used to diffuse the disinfection light of the ultraviolet disinfection lamp 3. For example, the diffusion angle of the light guide plate 7 is 120 degrees, so that the number of ultraviolet disinfection lamps 3 can be reduced, and the length covers the entire roller brush 1 and has a certain irradiation area, that is, a limited number of ultraviolet disinfection lamps 3 are used to form a long strip irradiation surface extending along the length direction of the roller brush 1.

[0049] The ultraviolet disinfection lamp 3 can adopt an ultraviolet LED lamp, and the wavelength of ultraviolet light adopts 255-260nm.

[0050] In some embodiments, Figure 3 , 5 As shown, in order to better cover the entire roller brush 1 and simplify the structure, the light guide plate 7 is a strip-shaped light guide plate 7 arranged along the length direction of the roller brush 1 .

[0051] In some embodiments, the light guide plate 7 is arranged in contact with the outer periphery 11 of the roller brush 1, and the outer periphery 11 cleaned by the scraper plate 30 cleans the light guide plate 7. With this design, on the one hand, the light guide plate 7 is kept clean and has good light transmission performance, and on the other hand, the scheme for cleaning the light guide plate 7 is simple and compact, that is, the outer periphery 11 of the roller brush 1 that is relatively clean after being cleaned by the scraper plate 30, sprayed by the water spraying part 9, and processed by the water baffle 10 is used for cleaning.

[0052] The light guide plate 7 may be cleaned by covering a part of the light guide plate 7 , and preferably by covering the entire light guide plate 7 .

[0053] In some embodiments, Fig. 9 As shown, the light guide plate 7 is squeezed and matched with the outer periphery 11 of the roller brush 1. The outer periphery 11 of the roller brush 1 is a cleaning part, which is generally a soft and thick cleaning body. The light guide plate 7 is squeezed and matched with the outer periphery 11 of the roller brush 1, which is conducive to deep cleaning and is more hygienic.

[0054] Embodiment 2:

[0055] Compared with the first embodiment, Fig.11 , 12As shown, it also includes a base station 12 for adapting to the floor brush, and the base station 12 is provided with a positive power supply electrode 16 and a negative power supply electrode 13. When the floor brush is connected to the base station 12, the positive pole of the electric motor 2 is electrically connected to the positive power supply electrode 16, and the negative pole of the ultraviolet disinfection lamp 3 is electrically connected to the negative power supply electrode 13. The ultraviolet disinfection lamp 3 and the electric motor 2 are both powered by the base station 12. This can save the battery power of the surface cleaning device.

[0056] In some embodiments, Figure 6 , 11 As shown in Figures 1 and 12, the floor brush includes a charging positive electrode 14 and a charging negative electrode 15. When the floor brush is connected to the base station 12, the charging positive electrode 14 is electrically connected to the power supply positive electrode 16, and the charging negative electrode 15 is electrically connected to the power supply negative electrode 13, and the floor brush supplies power to the battery of the surface cleaning device. After such an integrated arrangement, on the one hand, there is no need to separately lead out the positive and negative electrodes of the electric motor 2 and the negative electrode of the ultraviolet disinfection lamp 3, which is conducive to simplifying the circuit structure. On the other hand, both the ultraviolet disinfection lamp 3 and the electric motor 2 can be powered by the base station 12, and the battery can be charged.

[0057] Embodiment three:

[0058] Compared with the first embodiment, the present invention further includes a switching switch and a base station 12 for adapting a floor brush, and the switching switch can selectively connect the battery power supply of the surface cleaning device and the base station 12. In this way, when disconnected from the base station 12, the user can choose or the surface cleaning device automatically chooses to be powered by the battery, and when connected to the base station 12, the base station 12 can be selected to be powered, thereby saving battery power.

[0059] The switch may be a mechanical switch, an electronic switch, an electromagnetic switch, etc. The power supply selection circuit is a conventional circuit and will not be described in detail here.

[0060] In some embodiments, the base station 12 is provided with a trigger structure, which automatically triggers the switch to selectively connect the base station 12 to power the base station 12. The trigger structure is a Hall element, a mechanical structure, etc. that can automatically trigger the switch action, which is conducive to improving the convenience of use and reducing the user's operation.

[0061] Embodiment 4:

[0062] Compared with the first embodiment, Figure 1 , 10 As shown, the roller brush 1 includes a roller brush frame 5 and an upper cover 4. The roller brush frame 5 forms an opening for installing the roller brush 1. The upper cover 4 covers the opening. The roller brush 1 is detachably installed in the opening. The upper cover 4 is arranged along the length direction of the roller brush 1. A lamp board 6 arranged along the length direction of the roller brush 1 is installed in the upper cover 4. The lamp board 6 is installed with multiple ultraviolet disinfection lamps 3.

[0063] Embodiment five:

[0064] Compared with the fourth embodiment, Figure 2 , 3 As shown, the roller brush 1 includes a roller brush frame 5 and an upper cover 4, the roller brush frame 5 forms an opening for installing the roller brush 1, the upper cover 4 covers the opening, the roller brush 1 is detachably installed in the opening, and the upper cover 4 is arranged along the length direction of the roller brush 1. That is, the roller brush frame 5 and the upper cover 4 are detachably connected.

[0065] In addition, a detachable electrical connection structure is provided between the roller brush rack 5 and the upper cover 4, and the detachable electrical connection structure includes a first positive electrode 21, a first negative electrode 22, a second positive electrode 23 and a second negative electrode 24. The first positive electrode 21 and the first negative electrode 22 are provided on the upper cover 4, and the first positive electrode 21 and the first negative electrode 22 are electrically connected to the ultraviolet disinfection lamp 3 respectively. The second positive electrode 23 and the second negative electrode 24 are provided on the roller brush rack 5, and the second positive electrode 23 is electrically connected to the positive electrode of the electric motor 2, and the second negative electrode 24 is electrically connected to the negative electrode of the power supply. When the roller brush rack 5 is connected to the upper cover 4, the first positive electrode 21 is electrically connected to the second positive electrode 23, and the first negative electrode 22 is electrically connected to the second negative electrode 24. When the roller brush rack 5 is separated from the upper cover 4, the first positive electrode 21 is separated from the second positive electrode 23, and the first negative electrode 22 is separated from the second negative electrode 24.

[0066] The above improvement can make it easier to disassemble and assemble the roller brush 1. In addition, electrical connection can be achieved while disassembling and assembling.

[0067] In some embodiments, Figure 2 , 3 As shown, the first positive electrode 21 and the first negative electrode 22 are both arranged on the inner side of the upper cover 4 facing the upper side of the roller brush frame 5, the second positive electrode 23 and the second negative electrode 24 are both arranged on the upper side of the roller brush frame 5, the upper cover 4 and the roller brush frame 5 are detachably connected up and down, when the upper cover 4 and the roller brush frame 5 are connected up and down, the first positive electrode 21 and the second positive electrode 23 are electrically connected, the first negative electrode 22 and the second negative electrode 24 are electrically connected, when the upper cover 4 and the roller brush frame 5 are separated up and down, the first positive electrode 21 and the second positive electrode 23 are separated, and the first negative electrode 22 and the second negative electrode 24 are electrically separated. In this way, the electrical connection is located at the top of the floor brush to reduce the probability of encountering water.

[0068] like Figure 1 , 4 As shown in , 7, 8, and 10, a cover plate 29 is provided on the upper cover 4, a lamp board 6 arranged along the length direction of the roller brush 1 is installed in the upper cover 4, and a plurality of ultraviolet disinfection lamps 3 are installed on the lamp board 6. The upper cover 4 is provided with a mounting opening 8 arranged along the length direction of the roller brush 1 and passing through from top to bottom, a light guide plate 7 is installed at the lower end of the mounting opening 8, and the lamp board 6 is installed at the upper end of the mounting opening 8, and the light guide plate 7 and the lamp board 6 are arranged at intervals from top to bottom. The first positive electrode 21 and the first negative electrode 22 are both electrically connected to the lamp board 6 through the wire 26, and the cover plate 29 can protect the wire 26.

[0069] The upper and lower spacing between the light guide plate 7 and the lamp board 6 is conducive to assembling the light guide plate 7 and the lamp board 6, and does not require very high matching accuracy due to interference, thereby reducing the difficulty of production and manufacturing and facilitating mass production.

[0070] like Figure 4 As shown, a fixing card 27 is provided in the upper cover 4 , and the wire 26 is guided and relatively fixed through the fixing card 27 , so as to better protect the wire 26 .

[0071] In order to make the detachable connection of the upper cover 4 more accurate and firm, as Figure 2 , 3 As shown, it also includes an insertion interface 17, a latch 18, a plug-in column 19, and a slot 25. In this example, a plurality of insertion interfaces 17 are sequentially provided on the roller brush frame 5 along the length direction of the roller brush 1. Correspondingly, a plug-in column 19 is provided on the lower side of the upper cover 4. The plug-in column 19 and the insertion interface 17 guide and cooperate, so that the upper cover 4 is easy to connect with the roller brush frame 5, and the position after connection is more accurate, so that the electrical connection is reliable. In order not to loosen after connection, the roller brush frame 5 is provided with a retractable latch 18 controlled by an unlocking button 20. Correspondingly, a slot 25 is provided on the upper cover 4, and the latch 18 extends into the slot 25 to lock the upper cover 4 on the roller brush frame 5. When disassembling, the user presses the unlocking button 20, and the latch 18 retracts and disengages from the slot 25. In this way, the user can remove the upper cover 4 upwards for cleaning or the roller brush 1 can be taken out to the upper side.

[0072] When understanding the present disclosure, if necessary, the above structure can refer to other embodiments / appendices. Figure 1 And understand, no further elaboration here.

[0073] The above description is only an illustrative embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the patent protection scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A floor brush, comprising a roller brush (1) and an electric motor (2), wherein the electric motor (2) drives the roller brush (1) to rotate, and wherein: The invention also comprises an ultraviolet disinfection lamp (3) located in the circumference of the roller brush (1), wherein the positive pole of the ultraviolet disinfection lamp (3) is electrically connected to the positive pole of the electric motor (2), and the negative pole of the ultraviolet disinfection lamp (3) is electrically connected to the negative pole of the power supply. When the positive pole of the electric motor (2) is energized to make the electric motor (2) work, the positive pole of the ultraviolet disinfection lamp (3) is simultaneously energized to disinfect the rotating roller brush (1); when the positive pole of the electric motor (2) is de-energized to make the electric motor (2) stop working, the positive pole of the ultraviolet disinfection lamp (3) is simultaneously de-energized to stop disinfecting the roller brush (1).

2. The floor brush according to claim 1, characterized in that: The roller brush (1) comprises a roller brush frame (5) and an upper cover (4); the roller brush frame (5) forms an opening for mounting the roller brush (1); the upper cover (4) covers the opening; the roller brush (1) is detachably mounted in the opening; the upper cover (4) is arranged along the length direction of the roller brush (1); a light board (6) arranged along the length direction of the roller brush (1) is installed in the upper cover (4); and a plurality of ultraviolet disinfection lamps (3) are installed on the light board (6).

3. The floor brush according to claim 2, characterized in that: The roller brush frame (5) is detachably connected to the upper cover (4); a detachable electrical connection structure is provided between the roller brush frame (5) and the upper cover (4); the detachable electrical connection structure comprises a first positive electrode (21), a first negative electrode (22), a second positive electrode (23) and a second negative electrode (24); the first positive electrode (21) and the first negative electrode (22) are provided on the upper cover (4); the first positive electrode (21) and the first negative electrode (22) are electrically connected to the ultraviolet disinfection lamp (3) respectively; the second positive electrode (23) and the second negative electrode (24) are provided on the roller brush frame (5) and the upper cover (4); The roller brush frame (5) is connected to the upper cover (4), the second positive electrode (23) is electrically connected to the positive electrode of the electric motor (2), and the second negative electrode (24) is electrically connected to the negative electrode of the power supply. When the roller brush frame (5) and the upper cover (4) are connected, the first positive electrode (21) and the second positive electrode (23) are electrically connected, and the first negative electrode (22) and the second negative electrode (24) are electrically connected. When the roller brush frame (5) and the upper cover (4) are separated, the first positive electrode (21) and the second positive electrode (23) are separated, and the first negative electrode (22) and the second negative electrode (24) are electrically separated.

4. The floor brush according to claim 3, characterized in that: The first positive electrode (21) and the first negative electrode (22) are both arranged on the inner side surface of the upper cover (4) facing the upper side surface of the roller brush frame (5); the second positive electrode (23) and the second negative electrode (24) are both arranged on the upper side surface of the roller brush frame (5); the upper cover (4) and the roller brush frame (5) are detachably connected up and down; when the upper cover (4) and the roller brush frame (5) are connected up and down, the first positive electrode (21) and the second positive electrode (23) are electrically connected, and the first negative electrode (22) and the second negative electrode (24) are electrically connected; when the upper cover (4) and the roller brush frame (5) are separated up and down, the first positive electrode (21) and the second positive electrode (23) are separated, and the first negative electrode (22) and the second negative electrode (24) are electrically separated.

5. The floor brush according to claim 1, characterized in that: A light guide plate (7) is installed in the lighting direction of the ultraviolet disinfection lamp (3), and the light guide plate (7) is used to diffuse the disinfection light of the ultraviolet disinfection lamp (3).

6. The floor brush according to claim 5, characterized in that: The light guide plate (7) is a strip-shaped light guide plate (7) arranged along the length direction of the roller brush (1).

7. The floor brush according to claim 5 or 6, characterized in that: The roller brush (1) comprises a roller brush frame (5) and an upper cover (4); the roller brush frame (5) forms an opening for mounting the roller brush (1); the upper cover (4) covers the opening; the roller brush (1) is detachably mounted in the opening; the upper cover (4) is arranged along the length direction of the roller brush (1); a light board (6) arranged along the length direction of the roller brush (1) is mounted in the upper cover (4); a plurality of ultraviolet disinfection lamps (3) are mounted on the light board (6); the upper cover (4) is provided with a mounting opening (8) arranged along the length direction of the roller brush (1) and extending vertically; a light guide plate (7) is mounted at the lower end of the mounting opening (8); the light board (6) is mounted at the upper end of the mounting opening (8); and the light guide plate (7) and the light board (6) are spaced apart from each other vertically.

8. The floor brush according to claim 5 or 6, characterized in that: The light guide plate (7) is extruded and matched with the outer periphery (11) of the roller brush (1).

9. The floor brush according to claim 1 or 2 or 5 or 6, characterized in that: The invention also comprises a water spraying part (9), a dirt scraping plate (30), wherein the dirt scraping plate (30), the water spraying part (9), and the ultraviolet disinfection lamp (3) are arranged in sequence along the rotation direction of the roller brush (1); before the water spraying part (9) sprays water, the dirt scraping plate (30) first cleans the roller brush (1), and the cleaned part of the roller brush (1) then passes through the water spraying part (9) to be sprayed with water for humidification.

10. The floor brush according to claim 9, characterized in that: The invention also comprises a water baffle (10), a dirt scraping plate (30), a water spraying part (9), a water baffle (10), and an ultraviolet disinfection lamp (3) which are arranged in sequence along the rotation direction of the roller brush (1), and the water baffle (10) also serves as a separating part for separating the water spraying part (9) from the ultraviolet disinfection lamp (3).

11. The floor brush according to claim 9, characterized in that: In the case of a light guide plate (7), the light guide plate (7) is arranged in contact with the outer periphery (11) of the roller brush (1), and the outer periphery (11) cleaned by the scraper plate (30) cleans the light guide plate (7).

12. The floor brush according to claim 1, characterized in that: It also includes a switch and a base station (12) for adapting a floor brush, wherein the switch can selectively connect the battery power supply of the surface cleaning device and the power supply of the base station (12).

13. The floor brush according to claim 12, characterized in that: The base station (12) is provided with a trigger structure, which automatically triggers the switching switch to selectively connect the base station (12) to power supply.

14. The floor brush according to claim 1 or 2 or 3 or 5 or 12, characterized in that: The invention also comprises a base station (12) for adapting to a floor brush, wherein the base station (12) is provided with a positive power supply electrode (16) and a negative power supply electrode (13). When the floor brush is connected to the base station (12), the positive pole of the electric motor (2) is electrically connected to the positive power supply electrode (16), and the negative pole of the ultraviolet disinfection lamp (3) is electrically connected to the negative power supply electrode (13). Both the ultraviolet disinfection lamp (3) and the electric motor (2) are powered by the base station (12).

15. The floor brush according to claim 14, characterized in that: The floor brush comprises a charging positive electrode (14) and a charging negative electrode (15). When the floor brush is connected to a base station (12), the charging positive electrode (14) is electrically connected to a power supply positive electrode (16), and the charging negative electrode (15) is electrically connected to a power supply negative electrode (13). The floor brush supplies power to the battery of the surface cleaning device.

16. A surface cleaning device, characterized in that: A floor brush according to any one of claims 1 to 15 is provided.

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