cleaning brush

Abstract

The present invention provides a cleaning brush, which comprises: a brush head, the brush head comprises a rotatable inner scraping bar and an outer rotating frame, the outer rotating frame is sleeved outside the inner scraping bar and spaced apart from the inner scraping bar, a plurality of sponge mounting grooves are provided on the outer rotating frame, and a sponge block is installed in each sponge mounting groove; the plurality of sponge mounting grooves are spaced around the circumference of the inner scraping bar to form a plurality of air ducts, so that the outer rotating frame rotates in the same direction as the inner scraping bar under the impetus of the airflow brought by the rotation of the inner scraping bar; a handle, the handle is arranged on one side of the brush head and connected to the brush head; a sewage tank, the sewage tank is arranged on the brush head or the handle; a water pump, the water pump is arranged on the brush head or the handle; the inlet of the water pump is connected to one end of the brush head close to the surface to be cleaned, and the outlet of the water pump is connected to the sewage tank, so as to suck the sewage on the surface to be cleaned into the sewage tank, so as to solve the problem in the prior art that the electric cleaning brush still has sewage remaining on the surface of the cleaning area during cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning brushes, in particular to a cleaning brush. Background Art

[0002] People frequently perform cleaning tasks in daily life. Special cleaning liquid combined with a brush or scouring pad is the most common cleaning method. There are many types of dirt that need to be cleaned in the home, and they can adhere to the surface of various materials and be distributed in various positions of objects, making cleaning very time-consuming and labor-intensive.

[0003] To save manpower, many people choose to use electric brushes to assist in cleaning, such as cleaning heavily soiled areas like gas stoves and range hoods, as well as cleaning larger areas like tiles, floors, and glass. The specific cleaning process is as follows: first, spray the cleaning liquid on the surface to be cleaned. When the cleaning liquid contacts the stain, the surfactants, emulsifiers, and penetrants will penetrate into the stain to break down and remove the dirt. Then, use an electric brush equipped with bristles, a scouring pad, or a sponge head to clean the surface to be cleaned. The operator does not need to apply too much force. The mechanical force of the electric brush works synergistically with the cleaning liquid to complete the cleaning work quickly.

[0004] However, consumers are prone to some problems when using electric brushes:

[0005] (1) The cleaning fluid and the brush are two separate items that need to be taken out separately, which is inconvenient to use.

[0006] (2) The cleaning liquid and dissolved stains on the surface to be cleaned are splashed around by the rotation of the brush head, contaminating nearby objects and the user's clothes.

[0007] (3) When the brush head rotates rapidly, it will deviate along the tangent direction of rotation, which is difficult to control and requires the operator to exert force to control it, which deviates from the original intention of using an electric brush to save effort.

[0008] In the prior art, there is a handheld electric cleaning brush with nested double brush heads that rotate in opposite directions. By setting two nested brush heads and controlling the two brush heads to rotate in different directions, the problem of a single brush head in the prior art splashing cleaning liquid and dissolved stains everywhere when rotating, and even contaminating nearby objects and the user's clothes, is solved. A detergent channel is provided on the central axis, and an infusion pump sends detergent from the detergent storage tank into the detergent channel, and then sends it from the front end of the central axis to the inner brush head, so that cleaning is performed in a mode of spraying cleaning liquid while brushing.

[0009] However, when the handheld electric cleaning brush is used for cleaning, dirty water will still remain on the surface of the cleaning area, requiring the user to perform a secondary cleaning with a rag, which easily results in repeated work and dirty hands. Summary of the Invention

[0010] The main purpose of the present invention is to provide a cleaning brush to solve the problem in the prior art that dirty water still remains on the surface of the cleaning area during cleaning by the electric cleaning brush.

[0011] In order to achieve the above-mentioned purpose, the present invention provides a cleaning brush, which includes: a brush head, the brush head includes a rotatable inner scraping bar and an outer rotating frame, the outer rotating frame is sleeved outside the inner scraping bar and spaced apart from the inner scraping bar, and a plurality of sponge mounting grooves are provided on the outer rotating frame, and a sponge block is installed in each sponge mounting groove; the plurality of sponge mounting grooves are spaced around the circumference of the inner scraping bar to form a plurality of air ducts, so that the outer rotating frame rotates in the same direction as the inner scraping bar under the impetus of the airflow brought about by the rotation of the inner scraping bar; a handle, the handle is arranged on one side of the brush head and connected to the brush head; a sewage tank, the sewage tank is arranged on the brush head or the handle; a water pump, the water pump is arranged on the brush head or the handle; the inlet of the water pump is connected to the end of the brush head close to the surface to be cleaned, and the outlet of the water pump is connected to the sewage tank to draw sewage from the surface to be cleaned into the sewage tank.

[0012] Furthermore, the brush head includes: a head shell, the head shell is connected to the handle, and the inner rotating scraping bar and the outer rotating frame are rotatably arranged at one end of the head shell close to the surface to be cleaned; a motor, the motor includes a stator and a rotor, the motor is installed in the head shell, and the rotor is connected to the inner rotating scraping bar to drive the inner rotating scraping bar and the rotor to rotate synchronously.

[0013] Furthermore, the water pump is installed in the head housing and is located on the side of the motor away from the inner scraping bar; the motor is an outer rotor motor, the rotor is arranged outside the stator, and a first avoidance hole is provided on the stator. The two ends of the first avoidance hole are respectively connected to the inlet of the water pump and the end of the head housing close to the surface to be cleaned to allow sewage to pass through.

[0014] Furthermore, the head shell includes a first shell, a second shell and a third shell arranged in sequence, the first shell is fixedly connected to the second shell and the stator, the third shell is connected to the second shell so as to be relatively rotatable, and the external rotating frame is fixedly connected to the third shell so as to rotate synchronously with the third shell.

[0015] Furthermore, the brush head includes: a first motor fixing frame, the first motor fixing frame is arranged in the head shell and is located between the first shell and the second shell, the first motor fixing frame is fixedly connected to the first shell, the second shell and the stator; a second motor fixing frame, the second motor fixing frame is arranged on the side of the first motor fixing frame close to the inner rotating scraping strip, a part of the second motor fixing frame is located in the second shell, and the other part of the second motor fixing frame is located in the third shell, the second motor fixing frame is fixedly connected to the rotor and the inner rotating scraping strip, and the rotor drives the inner rotating scraping strip to rotate through the second motor fixing frame.

[0016] Furthermore, the cleaning brush includes a water pipe, a part of the water pipe is located in the brush head, and the other part of the water pipe is located in the handle. The first end of the water pipe is connected to the outlet of the water pump, and the second end of the water pipe is connected to the sewage tank; the inlet of the water pump is inserted in the middle through hole of the first motor fixing bracket and is connected to the first avoidance through hole, and the brush head includes a water pump sealing ring arranged between the inlet of the water pump, the motor and the first motor fixing bracket.

[0017] Furthermore, the brush head includes: a sealing gasket, which is arranged between the second shell and the first motor fixing frame; and a dynamic sealing ring, which is arranged between the second shell and the second motor fixing frame.

[0018] Furthermore, the brush head includes a bearing and a bearing fixing plate, the bearing fixing plate is arranged in the third shell and connected to the third shell, the outer ring of the bearing is fixedly connected to the bearing fixing plate and the third shell, and the inner ring of the bearing is fixedly connected to the second motor fixing frame and the inner rotating scraper strip.

[0019] Furthermore, the brush head includes a splash shield, which is installed on the side of the head shell close to the surface to be cleaned. The splash shield includes a cover body space and an opening connected to the cover body space. The opening is located on the side of the cover body space close to the surface to be cleaned, and the inner rotating scraper bar and the outer rotating frame are both located in the cover body space.

[0020] Furthermore, the splash shield is made of a flexible material; and / or a plurality of air inlet holes are provided on a side of the splash shield close to the surface to be cleaned.

[0021] Furthermore, the handle includes: a handle shell, which is connected to the brush head; a battery, a battery mounting slot is provided in the handle shell, and the battery is installed in the battery mounting slot; a PCB board and a PCB board fixing bracket, a PCB mounting slot is provided in the handle, the PCB board is provided on the PCB board fixing bracket, the PCB board fixing bracket is installed in the PCB mounting slot, and the PCB board is connected to the battery, water pump and motor; a switch key, which is movably provided on the handle shell and connected to the PCB board to control the working state of the cleaning brush by driving the switch key to move.

[0022] Furthermore, the handle includes a first conductive component and a second conductive component, the PCB board is connected to the first conductive component and the second conductive component, and the first conductive component and the second conductive component are both arranged in the battery installation slot and respectively contact the positive and negative poles of the battery.

[0023] Applying the technical solution of the present invention, the cleaning brush of the present invention includes: a brush head, the brush head includes a rotatable inner scraping bar and an outer rotating frame, the outer rotating frame is sleeved outside the inner scraping bar and spaced apart from the inner scraping bar, a plurality of sponge mounting grooves are provided on the outer rotating frame, and a sponge block is installed in each sponge mounting groove; the plurality of sponge mounting grooves are spaced around the circumference of the inner scraping bar to form a plurality of air ducts, so that the outer rotating frame rotates in the same direction as the inner scraping bar under the impetus of the airflow brought about by the rotation of the inner scraping bar; a handle, the handle is provided on one side of the brush head and connected to the brush head; a sewage tank, the sewage tank is provided on the brush head or the handle; a water pump, the water pump is provided on the brush head or the handle; the inlet of the water pump is connected to the end of the brush head close to the surface to be cleaned, and the outlet of the water pump is connected to the sewage tank to draw sewage on the surface to be cleaned into the sewage tank. In this way, the cleaning brush of the present invention is provided with an inner rotating scraper bar and an outer rotating frame, a sponge block, a sewage tank and a water pump. The airflow generated by the inner rotating scraper bar when rotating will flow into multiple air ducts to drive the outer rotating frame and the sponge block located on the outer rotating frame to rotate slowly, thereby realizing the combination of the washing function and the wiping function, reducing the setting of the relevant driving structure, and reducing the number of parts required for the cleaning brush, making the structure of the cleaning brush simple, improving the assembly efficiency of the cleaning brush, and being able to suck the sewage on the surface to be cleaned into the sewage tank, solving the problem in the prior art that the electric cleaning brush still has sewage remaining on the surface of the cleaning area during cleaning, preventing the problem of sewage splashing generated by the cleaning brush during cleaning, improving the cleaning effect of the cleaning brush, and avoiding the problem that the user needs to perform secondary cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 shows a cross-sectional view of an embodiment of a cleaning brush according to the present invention;

[0026] Figure 2 Shown Figure 1 An exploded view of the cleaning brush is shown;

[0027] Figure 3 Shown Figure 1 A front view of the cleaning brush is shown;

[0028] Figure 4 Shown Figure 1 Rear view of the cleaning brush shown;

[0029] Figure 5 Shown Figure 1 a left side view of the cleaning brush shown;

[0030] Figure 6 Shown Figure 1 a right side view of the cleaning brush shown;

[0031] Figure 7 Shown Figure 1 A top view of the cleaning brush is shown;

[0032] Figure 8 Shown Figure 1 a bottom view of the cleaning brush shown;

[0033] Figure 9 Shown Figure 8 Schematic diagram of air flow direction when the cleaning brush is in motion.

[0034] The above drawings include the following reference numerals:

[0035] 1. Sewage tank; 2. Handle; 3. Battery; 4. First conductive component; 5. Second conductive component; 6. PCB board fixing bracket; 7. PCB board; 8. On / off switch; 9. First shell; 10. Water pipe; 11. Water pump; 12. First motor fixing bracket; 13. Sealing gasket; 14. Water pump sealing ring; 15. Motor; 16. Second motor fixing bracket; 17. Dynamic sealing ring; 18. Bearing; 19. Second shell; 20. Bearing fixing plate; 21. Third shell; 22. Outer rotating bracket; 23. Sponge block; 24. Inner rotating scraper; 25. Splash shield; 26. Brush head; 27. Head shell; 28. Handle shell; 29. ​​First avoidance through hole; 30. First shell section; 31. Second shell section; 32. Air inlet; 33. Air duct. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] like Figures 1 to 9As shown, the present invention provides a cleaning brush, which includes: a brush head 26, the brush head 26 includes a rotatable inner scraping strip 24 and an outer rotating frame 22, the outer rotating frame 22 is sleeved outside the inner scraping strip 24 and spaced apart from the inner scraping strip 24, a plurality of sponge mounting grooves are provided on the outer rotating frame 22, and a sponge block 23 is installed in each sponge mounting groove; the plurality of sponge mounting grooves are spaced around the circumference of the inner scraping strip 24 to form a plurality of air ducts 33, so that the outer rotating frame 22 can rotate around the inner scraping strip 24. The strip 24 rotates in the same direction as the inner scraping strip 24 under the push of the airflow brought about by the rotation; the handle 2 is arranged on one side of the brush head 26 and is connected to the brush head 26; the sewage tank 1 is arranged on the brush head 26 or the handle 2; the water pump 11 is arranged on the brush head 26 or the handle 2; the inlet of the water pump 11 is connected to the end of the brush head 26 close to the surface to be cleaned, and the outlet of the water pump 11 is connected to the sewage tank 1 to suck the sewage on the surface to be cleaned into the sewage tank 1.

[0038] In this way, the cleaning brush of the present invention is provided with an inner rotating scraper bar 24 and an outer rotating frame 22, a sponge block 23, a sewage tank 1 and a water pump 11. The airflow generated by the inner rotating scraper bar 24 when rotating will flow into multiple air ducts 33, so as to drive the outer rotating frame 22 and the sponge block 23 located on the outer rotating frame 22 to rotate slowly, thereby realizing the combination of the washing function and the wiping function, reducing the setting of the relevant driving structure, reducing the number of parts required for the cleaning brush, making the structure of the cleaning brush simple, improving the assembly efficiency of the cleaning brush, and being able to suck the sewage on the surface to be cleaned into the sewage tank 1, solving the problem of the electric cleaning brush in the prior art that sewage will still remain on the surface of the cleaning area during cleaning, preventing the problem of sewage splashing generated by the cleaning brush during cleaning, improving the cleaning effect of the cleaning brush, and avoiding the problem that the user needs to perform secondary cleaning.

[0039] like Figure 1 and Figure 2 As shown, the brush head 26 includes: a head shell 27, the head shell 27 is connected to the handle 2, and the inner rotating scraping bar 24 and the outer rotating frame 22 are rotatably arranged at one end of the head shell 27 close to the surface to be cleaned; a motor 15, the motor 15 includes a stator and a rotor, the motor 15 is installed in the head shell 27, and the rotor is connected to the inner rotating scraping bar 24 to drive the inner rotating scraping bar 24 to rotate synchronously with the rotor.

[0040] like Figure 1 and Figure 2 As shown, the water pump 11 is installed in the head housing 27 and is located on the side of the motor 15 away from the inner scraper bar 24; the motor 15 is an outer rotor motor, and the rotor is sleeved outside the stator. A first avoidance hole 29 is provided on the stator. The two ends of the first avoidance hole 29 are respectively connected to the inlet of the water pump 11 and the end of the head housing 27 close to the surface to be cleaned, so as to allow sewage to pass through.

[0041] like Figure 1 and Figure 2 As shown, the head shell 27 includes a first shell 9, a second shell 19 and a third shell 21 arranged in sequence, the first shell 9 is fixedly connected to the second shell 19 and the stator, the third shell 21 is connected to the second shell 19 so as to be relatively rotatable, and the outer rotating frame 22 is fixedly connected to the third shell 21 so as to rotate synchronously with the third shell 21.

[0042] Specifically, a plurality of plug-in columns are provided on the side of the external rotating frame 22 away from the surface to be cleaned, and a plurality of plug-in slots are provided on the side of the third shell 21 close to the external rotating frame 22. The plurality of plug-in columns are plugged into the plurality of plug-in slots in a one-to-one corresponding manner, and each plug-in column is interference-connected with the corresponding plug-in slot.

[0043] like Figure 1 and Figure 2 As shown, the brush head 26 includes: a first motor fixing frame 12, which is arranged in the head shell 27 and between the first shell 9 and the second shell 19, and the first motor fixing frame 12 is fixedly connected to the first shell 9, the second shell 19 and the stator; a second motor fixing frame 16, which is arranged on the side of the first motor fixing frame 12 close to the inner scraping strip 24, a part of the second motor fixing frame 16 is located in the second shell 19, and the other part of the second motor fixing frame 16 is located in the third shell 21, the second motor fixing frame 16 is fixedly connected to the rotor and the inner scraping strip 24, and the rotor drives the inner scraping strip 24 to rotate through the second motor fixing frame 16.

[0044] In the brush head 26 of the cleaning brush of the present invention, the first shell 9 and the first motor fixing frame 12 are detachably connected by a plurality of first fasteners. The first shell 9 is provided with a plurality of first through holes for the threaded ends of the plurality of first fasteners to pass through in a one-to-one correspondence, and the first motor fixing frame 12 is provided with a plurality of first threaded holes for the threaded ends of the plurality of first fasteners to be threadedly connected in a one-to-one correspondence.

[0045] In the brush head 26 of the cleaning brush of the present invention, a first annular groove is provided on the end of the first motor fixing frame 12 close to the second shell 19, and a first annular inner flange is provided on the end of the second shell 19 close to the first motor fixing frame 12, and the first annular groove and the first annular inner flange are plugged into each other.

[0046] In the brush head 26 of the cleaning brush of the present invention, a second annular groove is provided on the outer peripheral surface of the second shell 19, and a second annular inner flange is provided on the inner wall surface of the third shell 21. The second annular groove and the second annular inner flange are rotatably plugged into each other so that the second shell 19 and the third shell 21 can be relatively rotatably arranged.

[0047] like Figure 2As shown, the first housing 9 is provided with a protrusion located on a side of the water pump 11 away from the motor 15 for pressing the water pump 11 .

[0048] like Figure 1 and Figure 2 As shown, the cleaning brush includes a water pipe 10, a portion of the water pipe 10 is located in the brush head 26, and the other portion of the water pipe 10 is located in the handle 2. The first end of the water pipe 10 is connected to the outlet of the water pump 11, and the second end of the water pipe 10 is connected to the sewage tank 1; the inlet of the water pump 11 is inserted into the middle through hole of the first motor fixing bracket 12 and is connected to the first avoidance through hole 29, and the brush head 26 includes a water pump sealing ring 14 arranged between the inlet of the water pump 11, the motor 15 and the first motor fixing bracket 12.

[0049] Specifically, the second motor fixing frame 16 is provided with a second avoidance hole connected to the first avoidance hole 29 for allowing sewage to pass through, and the inner rotating scraper bar 24 is provided with a third avoidance hole connected to the second avoidance hole for allowing sewage to pass through.

[0050] like Figures 1 to 9 As shown, the brush head 26 includes: a sealing gasket 13 , which is disposed between the second housing 19 and the first motor mounting bracket 12 ; and a dynamic sealing ring 17 , which is disposed between the second housing 19 and the second motor mounting bracket 16 .

[0051] like Figure 1 and Figure 2 As shown, the brush head 26 includes a bearing 18 and a bearing fixing plate 20. The bearing fixing plate 20 is arranged in the third shell 21 and is connected to the third shell 21. The outer ring of the bearing 18 is fixedly connected to the bearing fixing plate 20 and the third shell 21. The inner ring of the bearing 18 is fixedly connected to the second motor fixing frame 16 and the inner scraper strip 24.

[0052] Specifically, the third shell 21 and the bearing fixing plate 20 are detachably connected through a plurality of second fasteners. The third shell 21 is provided with a plurality of second through holes for the threaded ends of the plurality of second fasteners to pass through one by one, and the bearing fixing plate 20 is provided with a plurality of second threaded holes for the threaded ends of the plurality of second fasteners to be threadedly connected one by one.

[0053] like Figure 1 and Figure 2 As shown, the brush head 26 includes a splash shield 25, which is installed on the side of the head shell 27 close to the surface to be cleaned. The splash shield 25 includes a cover body space and an opening portion connected to the cover body space. The opening portion is located on the side of the cover body space close to the surface to be cleaned, and the inner rotating scraper bar 24 and the outer rotating frame 22 are both located in the cover body space.

[0054] Specifically, the splash shield 25 is connected to a side of the second housing 19 that is close to the surface to be cleaned.

[0055] Preferably, the splash shield 25 is made of a flexible material so that the splash shield 25 can be retracted when subjected to force, so that the splash shield 25 can fit tightly against the surface to be cleaned, further preventing the splashing of sewage on the surface to be cleaned; and / or a plurality of air inlet holes are provided on one side of the splash shield 25 close to the surface to be cleaned to facilitate the entry of sewage into the splash shield 25, thereby improving the collection and removal effect of sewage.

[0056] Although there are cases in the prior art where sponge brushes or scouring pad brushes made of composite sponge materials are used instead of bristle brushes for cleaning to solve the problem of splashing cleaning liquid, the brush head has poor cleaning power for narrow spaces, heavy oil stains and uneven surfaces due to material limitations, and this water-absorbing material will increase the amount of cleaning liquid used, and the friction between the brush head and the surface to be cleaned is large, which can easily cause the brush head to deviate along the rotation tangent direction when rotating rapidly, making it difficult to control. The user has to use greater force to control it, which deviates from the original intention of using an electric brush to save effort; in addition, some people avoid liquid splashing and deviation by reducing the rotation speed of the brush, but this method can easily lead to a decrease in the decontamination ability of the brush head.

[0057] The cleaning brush of the present invention realizes the sewage recovery function by providing a combined structure of a water pump 11, a sewage tank 1, a motor 15, an inner rotating scraper bar 24, an outer rotating frame 22, a sponge block 23 and an anti-splash cover 25, and the rotor of the motor 15 can drive the inner rotating scraper bar 24 to rotate, so that the airflow generated when the inner rotating scraper bar 24 rotates flows into the multiple air ducts 33 on the outer rotating frame 22, thereby promoting the slow rotation of the outer rotating frame 22 and the sponge block 23 thereon, realizing the integrated setting of the sewage recovery function, the washing function and the wiping function of the cleaning brush, which not only solves the problem of sewage splashing but also saves the user's wiping operation; in addition, the anti-splash cover 25 made of flexible material can fit the surface to be cleaned, further preventing sewage from splashing.

[0058] like Figure 1 and Figure 9 As shown, the sewage recovery path B+A of the cleaning brush of the present invention is as follows: the sewage enters the anti-splash cover 25 from the air inlet 32 ​​under the suction of the water pump 11, and is then pushed to the inner scraping bar 24 by the outer scraping bar, and then reaches the first avoidance through hole 29 under the push of the inner scraping bar 24, and then passes through the inside of the water pump 11 to reach the water pipe 10, and finally reaches the sewage tank 1.

[0059] like Figure 9As shown, the air flow path B of the cleaning brush of the present invention is as follows: the air flow enters the anti-splash cover 25 from the air inlet 32 ​​of the anti-splash cover 25 under the rotation of the inner rotating scraper bar 24, then enters the air duct 33 of the outer rotating scraper bar, and finally reaches the inner rotating scraper bar 24.

[0060] like Figure 1 and Figure 2 As shown, the handle 2 includes: a handle shell 28, which is connected to the brush head 26; a battery 3, a battery mounting slot is provided in the handle shell 28, and the battery 3 is installed in the battery mounting slot; a PCB board 7 and a PCB board fixing frame 6, a PCB mounting slot is provided in the handle 2, the PCB board 7 is provided on the PCB board fixing frame 6, and the PCB board fixing frame 6 is installed in the PCB mounting slot, and the PCB board 7 is connected to the battery 3, the water pump 11 and the motor 15; a switch key 8, the switch key 8 is movably provided on the handle shell 28 and connected to the PCB board 7, so as to control the working state of the cleaning brush by driving the switch key 8 to move.

[0061] Specifically, the handle shell 28 includes a first shell section 30 and a second shell section 31. The PCB board 7 and the PCB board fixing frame 6 are both located in the first shell section 30, and the battery 3 is located in the second shell section 31. The first shell section 30 and the second shell section 31 are detachably connected to facilitate replacement of the battery 3.

[0062] like Figure 1 and Figure 2 As shown, the handle 2 includes a first conductive component 4 and a second conductive component 5, the PCB board 7 is connected to the first conductive component 4 and the second conductive component 5, and the first conductive component 4 and the second conductive component 5 are both arranged in the battery installation slot and are in contact with the positive and negative poles of the battery 3 respectively.

[0063] Specifically, the end of the first shell segment 30 away from the second shell segment 31 is integrally formed with the head shell 27, and the sewage tank 1 is installed on the end of the second shell segment 31 away from the first shell segment 30. Both the first shell segment 30 and the second shell segment 31 are provided with a water pipe installation groove for installing the water pipe 10. The first end of the water pipe 10 passes through the first shell segment 30 and extends into the head shell 27 to be connected to the inlet of the water pump 11. The second end of the water pipe 10 passes through the second shell segment 31 and is connected to the sewage tank 1.

[0064] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0065] The cleaning brush of the present invention comprises: a brush head 26, the brush head 26 comprises an inner rotating scraping bar 24 and an outer rotating frame 22 which are rotatably arranged, the outer rotating frame 22 being sleeved outside the inner rotating scraping bar 24 and spaced apart from the inner rotating scraping bar 24, and a plurality of sponge mounting grooves being provided on the outer rotating frame 22, each sponge mounting groove being installed with a sponge block 23; the plurality of sponge mounting grooves being spaced apart around the circumference of the inner rotating scraping bar 24 to form a plurality of air ducts 33, so that the outer rotating frame 22 rotates in the same direction as the inner rotating scraping bar 24 under the impetus of the airflow brought about when the inner rotating scraping bar 24 rotates; a handle 2, the handle 2 being arranged on one side of the brush head 26 and connected to the brush head 26; a sewage tank 1, the sewage tank 1 being arranged on the brush head 26 or the handle 2; a water pump 11, the water pump 11 being arranged on the brush head 26 or the handle 2; the inlet of the water pump 11 being connected to the end of the brush head 26 close to the surface to be cleaned, and the outlet of the water pump 11 being connected to the sewage tank 1, so as to suck the sewage on the surface to be cleaned into the sewage tank 1. In this way, the cleaning brush of the present invention is provided with an inner rotating scraper bar 24 and an outer rotating frame 22, a sponge block 23, a sewage tank 1 and a water pump 11. The airflow generated by the inner rotating scraper bar 24 when rotating will flow into multiple air ducts 33, so as to drive the outer rotating frame 22 and the sponge block 23 located on the outer rotating frame 22 to rotate slowly, thereby realizing the combination of the washing function and the wiping function, reducing the setting of the relevant driving structure, reducing the number of parts required for the cleaning brush, making the structure of the cleaning brush simple, improving the assembly efficiency of the cleaning brush, and being able to suck the sewage on the surface to be cleaned into the sewage tank 1, solving the problem of the electric cleaning brush in the prior art that sewage will still remain on the surface of the cleaning area during cleaning, preventing the problem of sewage splashing generated by the cleaning brush during cleaning, improving the cleaning effect of the cleaning brush, and avoiding the problem that the user needs to perform secondary cleaning.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0068] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0069] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0071] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A cleaning brush, characterized in that: The cleaning brush comprises: A brush head (26), the brush head (26) comprising an inner rotating scraping strip (24) and an outer rotating frame (22) which are rotatably arranged, the outer rotating frame (22) being sleeved outside the inner rotating scraping strip (24) and spaced apart from the inner rotating scraping strip (24), the outer rotating frame (22) being provided with a plurality of sponge mounting grooves, each of which is provided with a sponge block (23); the plurality of sponge mounting grooves being spaced apart around the circumference of the inner rotating scraping strip (24) to form a plurality of air ducts (33), so that the outer rotating frame (22) rotates in the same direction as the inner rotating scraping strip (24) under the impetus of the airflow brought about by the rotation of the inner rotating scraping strip (24); A handle (2), the handle (2) being arranged on one side of the brush head (26) and connected to the brush head (26); A sewage tank (1), the sewage tank (1) being arranged on the handle (2); a water pump (11), the water pump (11) being arranged on the brush head (26) or the handle (2); an inlet of the water pump (11) being connected to an end of the brush head (26) close to the surface to be cleaned, and an outlet of the water pump (11) being connected to the sewage tank (1) so as to draw sewage from the surface to be cleaned into the sewage tank (1); The cleaning brush comprises a water pipe (10), a portion of the water pipe (10) is located in the brush head (26), another portion of the water pipe (10) is located in the handle (2), a first end of the water pipe (10) is connected to the outlet of the water pump (11), and a second end of the water pipe (10) is connected to the sewage tank (1).

2. The cleaning brush according to claim 1, characterized in that The brush head (26) comprises: A head shell (27), the head shell (27) is connected to the handle (2), and the inner rotating scraper (24) and the outer rotating frame (22) are both rotatably arranged at one end of the head shell (27) close to the surface to be cleaned; A motor (15), comprising a stator and a rotor, is installed in the head housing (27), and the rotor is connected to the inner rotating scraper bar (24) to drive the inner rotating scraper bar (24) to rotate synchronously with the rotor.

3. The cleaning brush according to claim 2, characterized in that The water pump (11) is installed in the head housing (27) and is located on a side of the motor (15) away from the inner rotating scraper (24); The motor (15) is an outer rotor motor, the rotor is sleeved outside the stator, and a first avoidance through hole (29) is provided on the stator, and the two ends of the first avoidance through hole (29) are respectively connected to the inlet of the water pump (11) and the end of the head shell (27) close to the surface to be cleaned, so as to allow sewage to pass through.

4. The cleaning brush according to claim 3, characterized in that The head shell (27) comprises a first shell (9), a second shell (19) and a third shell (21) which are arranged in sequence, wherein the first shell (9) is fixedly connected to the second shell (19) and the stator, the third shell (21) is connected to the second shell (19) so as to be relatively rotatable, and the outer rotating frame (22) is fixedly connected to the third shell (21) so as to rotate synchronously with the third shell (21).

5. The cleaning brush according to claim 4, characterized in that The brush head (26) comprises: a first motor fixing frame (12), the first motor fixing frame (12) being arranged in the head shell (27) and located between the first shell (9) and the second shell (19), the first motor fixing frame (12) being fixedly connected to the first shell (9), the second shell (19) and the stator; A second motor fixing frame (16) is provided on a side of the first motor fixing frame (12) close to the inner rotating scraper strip (24), a portion of the second motor fixing frame (16) is located in the second housing (19), and another portion of the second motor fixing frame (16) is located in the third housing (21), the second motor fixing frame (16) is fixedly connected to both the rotor and the inner rotating scraper strip (24), and the rotor drives the inner rotating scraper strip (24) to rotate through the second motor fixing frame (16).

6. The cleaning brush according to claim 5, characterized in that The inlet of the water pump (11) is inserted into the middle through hole of the first motor fixing frame (12) and communicates with the first avoidance through hole (29); the brush head (26) comprises a water pump sealing ring (14) arranged between the inlet of the water pump (11), the motor (15) and the first motor fixing frame (12).

7. The cleaning brush according to claim 6, characterized in that The brush head (26) comprises: a sealing gasket (13), the sealing gasket (13) being arranged between the second housing (19) and the first motor fixing frame (12); A dynamic sealing ring (17), the dynamic sealing ring (17) being arranged between the second housing (19) and the second motor fixing frame (16).

8. The cleaning brush according to claim 6, characterized in that The brush head (26) comprises a bearing (18) and a bearing fixing plate (20), wherein the bearing fixing plate (20) is arranged in the third housing (21) and connected to the third housing (21), the outer ring of the bearing (18) is fixedly connected to the bearing fixing plate (20) and the third housing (21), and the inner ring of the bearing (18) is fixedly connected to the second motor fixing frame (16) and the inner rotating scraper (24).

9. The cleaning brush according to claim 8, characterized in that The brush head (26) includes an anti-splash cover (25), which is mounted on a side of the head shell (27) close to the surface to be cleaned. The anti-splash cover (25) includes a cover body space and an opening portion connected to the cover body space. The opening portion is located on a side of the cover body space close to the surface to be cleaned. The inner rotating scraping strip (24) and the outer rotating frame (22) are both located in the cover body space.

10. The cleaning brush according to claim 9, characterized in that The splash shield (25) is made of a flexible material; and / or A plurality of air inlet holes (32) are provided on one side of the anti-splash cover (25) close to the surface to be cleaned.

11. The cleaning brush according to any one of claims 2 to 10, characterized in that The handle (2) comprises: A handle housing (28), the handle housing (28) being connected to the brush head (26); A battery (3), wherein a battery installation slot is provided in the handle housing (28), and the battery (3) is installed in the battery installation slot; A PCB board (7) and a PCB board fixing frame (6), wherein a PCB mounting groove is provided in the handle (2), the PCB board (7) is provided on the PCB board fixing frame (6), the PCB board fixing frame (6) is installed in the PCB mounting groove, and the PCB board (7) is connected to the battery (3), the water pump (11) and the motor (15); An on / off key (8) is movably disposed on the handle housing (28) and connected to the PCB board (7) so as to control the working state of the cleaning brush by driving the on / off key (8) to move.

12. The cleaning brush according to claim 11, characterized in that The handle (2) comprises a first conductive component (4) and a second conductive component (5); the PCB board (7) is connected to both the first conductive component (4) and the second conductive component (5); the first conductive component (4) and the second conductive component (5) are both arranged in the battery installation slot and are in contact with the positive electrode and the negative electrode of the battery (3), respectively.

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