Brush disc for electric cleaning brush and electric cleaning brush with brush disc

Abstract

The utility model discloses a brush disc for an electric cleaning brush and the electric cleaning brush with the brush disc, and belongs to the technical field of electric tools, the brush disc comprises an inner disc body and an outer disc body, the inner disc body is arranged on the inner circumference of the outer disc body, the bottom surface of the inner disc body and the bottom surface of the outer disc body are respectively provided with a cleaning body, the cleaning bodies are provided with at least two types of cleaning bodies with different hardness, and the cleaning bodies are arranged in the inner disc body and the outer disc body. And the height of the soft cleaning body is not less than that of the hard cleaning body. The electric cleaning brush comprises a machine shell, a motor, a transmission assembly and the brush disc, and the motor drives the inner disc body and the outer disc body to rotate reversely or rotate in the same direction through the transmission assembly. A user can select a softer cleaning body or a harder cleaning body to scrape and brush dirt according to the dirt degree under the condition that the brush disc does not need to be replaced, and the use experience of the user can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a brush disc for an electric cleaning brush. In addition, the utility model also relates to an electric cleaning brush with the brush disc. Background Art

[0002] With the improvement of industrialization level, the types and functions of electric tools are becoming more and more diversified. Among them, electric cleaning brushes are a common electric tool. Existing electric cleaning brushes generally include a housing, a motor and a brush disc. The motor drives the brush disc to rotate, and the rotating brush disc scrapes the object to be cleaned or the surface to be cleaned. The electric cleaning brush can be used not only for cleaning vehicles, but also for cleaning kitchen items, floors, walls, etc., which greatly reduces the cleaning difficulty of users. In order to improve the user experience, the existing electric cleaning brush has a structure of two inner and outer brush discs. When the inner and outer brush discs rotate in opposite directions, they can offset part of the centrifugal force, thereby reducing the tendency of the brush disc to move, thereby improving the user's grip when using it. However, the bristles on the inner and outer brush discs of the existing electric cleaning brushes are generally set the same, that is, the hardness and length of the bristles on the inner and outer brush discs are the same, and the bristles on the two brush discs have basically the same scraping ability for dirt. Since the degree of dirtiness of the object to be cleaned or the surface to be cleaned is generally different, the bristles with the same scraping ability cannot well meet the scraping requirements of different degrees of dirtiness, and users need to replace the brush disc or scrape manually. Utility Model Content

[0003] In order to solve the shortcomings and deficiencies in the above-mentioned prior art, the utility model provides a brush plate for an electric cleaning brush. Users can choose a softer cleaning body or a harder cleaning body to scrape the dirt according to the degree of dirt without replacing the brush plate, which is conducive to improving the user experience.

[0004] In order to achieve the above technical objectives, the utility model provides a brush plate for an electric cleaning brush, including an inner plate body and an outer plate body, the inner plate body is arranged on the inner periphery of the outer plate body, the bottom surfaces of the inner plate body and the bottom surfaces of the outer plate body are both provided with cleaning bodies, the cleaning bodies are provided with at least two types with different hardness and softness, and the height of the soft cleaning body is not lower than the height of the hard cleaning body.

[0005] Preferably, the cleaning bodies are made of the same material; or, the cleaning bodies are made of different materials.

[0006] Preferably, the cleaning body comprises a soft sponge and a hard sponge, and the height of the soft sponge is greater than that of the hard sponge.

[0007] Preferably, the cleaning body comprises soft bristle bundles and hard bristle bundles, and the height of the soft bristle bundles is greater than the height of the hard bristle bundles.

[0008] Preferably, the soft bristle bundle and the hard bristle bundle are both composed of a plurality of bristles, wherein the diameter of the bristles constituting the soft bristle bundle is smaller than the diameter of the bristles constituting the hard bristle bundle.

[0009] Preferably, the soft bristle bundle and the hard bristle bundle are both composed of a plurality of bristles, and the bristles are wavy.

[0010] Preferably, the height of the soft cleaning body is greater than that of the hard cleaning body, and a height difference Δh between the two is 1 mm to 10 mm.

[0011] Preferably, the cleaning body comprises a soft cleaning body arranged on the bottom surface of the inner disc body and a hard cleaning body arranged on the bottom surface of the outer disc body; or, the cleaning body comprises a hard cleaning body arranged on the bottom surface of the inner disc body and a soft cleaning body arranged on the bottom surface of the outer disc body.

[0012] Preferably, the inner periphery of the outer plate is provided with a concave cavity for accommodating the inner plate, and the inner plate is located in the concave cavity when combined with the outer plate, and the bottom surfaces of the combined inner plate and outer plate are flush.

[0013] The utility model also provides an electric cleaning brush, including a casing, a motor, and a transmission assembly. The motor and the transmission assembly are arranged inside the casing. The transmission assembly includes an inner shaft and an outer shaft sleeved outside the inner shaft. It also includes the brush plate recorded above. The brush plate is located outside the casing. The inner plate body is detachably connected to the inner shaft, and the outer plate body is detachably connected to the outer shaft. The motor drives the inner plate body and the outer plate body to rotate in opposite directions or in the same direction through the transmission assembly.

[0014] After adopting the above technical solution, the utility model has the following advantages:

[0015] 1. The brush disc provided by the utility model has a cleaning body arranged on the bottom surface of the inner disc body and the bottom surface of the outer disc body. The cleaning body is provided with at least two different soft and hard cleaning bodies, and the height of the soft cleaning body is not lower than the height of the hard cleaning body. The user can choose a softer cleaning body or a harder cleaning body to scrape the dirt according to the degree of dirt without changing the brush disc, which is conducive to improving the user experience. When the height of the soft cleaning body is greater than the height of the hard cleaning body, when the user applies force to the brush disc during use to make the cleaning body scrape the object to be cleaned or the surface to be cleaned, the degree of deformation of the softer cleaning body is greater, and the degree of deformation of the harder cleaning body is smaller. Since the height of the softer cleaning body is greater than the height of the harder cleaning body, the soft cleaning body with larger deformation and the hard cleaning body with smaller deformation can effectively contact the object to be cleaned or the surface to be cleaned, so that both the soft cleaning body and the hard cleaning body can effectively scrape. The user can change the scraping force of the soft cleaning body and the hard cleaning body by changing the pressure applied to the brush disc, so that the user can reasonably apply force to the brush disc according to the scraping requirements.

[0016] 2. The soft cleaning body and the hard cleaning body can be made of the same material or different materials. When the various cleaning bodies are made of different materials, the cleaning bodies of different materials have different scraping performances on the object to be cleaned or the surface to be cleaned. For example, the sponge can be used to foam first, and then the hair bundles can be used to scrape and sweep, which is conducive to better improving the cleaning effect.

[0017] 3. The cleaning body can be a sponge. In this case, the height of the soft sponge is greater than that of the hard sponge. The soft sponge and the hard sponge can be made of the same sponge material. The hard sponge is denser than the soft sponge, so that the hard sponge is harder than the soft sponge. When the user applies force to the brush plate during use, the soft sponge is deformed to a greater extent, while the hard sponge is deformed to a lesser extent, so that both the soft and hard sponges can effectively scrape the object or surface to be cleaned. The soft sponge can be used for foaming, and the hard sponge can be used to scrape dirt and remove stains.

[0018] 4. The cleaning body can be made of bristle bundles. In this case, the height of the soft bristle bundle is greater than that of the hard bristle bundle. The soft bristle bundle and the hard bristle bundle can be made of the same plastic or nylon material. When the soft bristle bundle and the hard bristle bundle are of the same thickness, the bristle bundle with a larger height is softer, and the bristle bundle with a smaller height is harder. When the user applies force to the brush disc during use, the soft bristle bundle is deformed to a greater extent, while the hard bristle bundle is deformed to a lesser extent, so that both the soft bristle bundle and the hard bristle bundle can effectively scrape the object or surface to be cleaned. For example, when cleaning, you can first use the hard bristle bundle to scrape the agglomerated stains, and then use the soft bristle bundle to further scrape the remaining dot stains.

[0019] 5. Both soft bristle bundles and hard bristle bundles are composed of bristles. For bristles of the same material, the smaller the diameter, the softer the bristles, and the larger the diameter, the harder the bristles. On the premise that the bristle heights of the soft bristle bundles and the hard bristle bundles are different, the difference in softness and hardness between the soft bristle bundles and the hard bristle bundles can be further increased by adjusting the thickness of the bristles.

[0020] 6. The bristles that make up the hair bundle are wavy, and the hair bundle composed of multiple wavy bristles remains fluffy, so that the hair bundle can remain fluffy after absorbing water, avoiding the bristles of the same hair bundle from being sucked together in the presence of water, which is beneficial to improving the scraping effect of the hair bundle on the object or surface to be cleaned.

[0021] 7. The height of the soft cleaning body is preferably greater than that of the hard cleaning body, and the height difference between the soft cleaning body and the hard cleaning body is reasonably set so that the cleaning bodies of different hardness and softness can effectively scrape the object or surface to be cleaned when in use. If the height difference Δh is too small, the contact force between the softer cleaning body and the object or surface to be cleaned is smaller when the brush plate is under pressure, and the softer cleaning body cannot effectively scrape the object or surface to be cleaned. When the length difference ΔL is too large, the contact force between the harder cleaning body and the object or surface to be cleaned is smaller when the brush plate is under pressure, and the harder cleaning body cannot effectively scrape the object or surface to be cleaned.

[0022] 8. The cleaning bodies on the bottom surfaces of the inner and outer discs can adopt a cleaning structure that is soft inside and hard outside, or a cleaning structure that is hard inside and soft outside. The bottom surfaces of the inner and outer discs can be provided with cleaning bodies of the same softness, hardness and material, respectively, which is beneficial to improving the processing efficiency of the inner and outer discs.

[0023] 9. When the inner dish and the outer dish are combined together, the inner dish is accommodated in the concave cavity of the outer dish, so that the bottom surface of the inner dish can be flush with the bottom surface of the outer dish, so that the lower end of the soft cleaning body can be set lower than the lower end of the hard cleaning body, thereby enabling the soft cleaning body and the hard cleaning body to effectively scrape the object or surface to be cleaned when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of a brush plate of Embodiment 1;

[0025] Figure 2 Schematic diagram of hard bristle bundles and soft bristle bundles in a brush plate of Example 1;

[0026] Figure 3 It is a schematic diagram of the hair bundles in the brush plate of Example 1;

[0027] Figure 4 The structure of the inner plate body in the brush plate of embodiment 1 Figure 1 ;

[0028] Figure 5 The structure of the inner plate body in the brush plate of embodiment 1 Figure 2 ;

[0029] Figure 6 This is a structural diagram of the outer disc body of the brush disc in Example 1;

[0030] Figure 7 This is a schematic diagram of the structure of the electric cleaning brush of Example 1;

[0031] Figure 8 This is a structural diagram of the motor, transmission assembly and reducer in the electric cleaning brush of Example 1;

[0032] Fig. 9An exploded view of the motor, transmission assembly and reducer in the electric cleaning brush of Example 1;

[0033] Fig.10 This is a structural diagram of the inner shaft in the electric cleaning brush of Example 1;

[0034] Fig.11 This is a structural diagram of a connector in an electric cleaning brush according to Embodiment 1;

[0035] Fig.12 An exploded view of the motor and transmission assembly in the electric cleaning brush of Example 2;

[0036] Fig.13 It is a structural diagram of the transmission assembly in the electric cleaning brush of the second embodiment;

[0037] Fig.14 is a cross-sectional view of the brush plate of Embodiment 4;

[0038] Fig.15 It is a cross-sectional view of the brush plate of embodiment 5.

[0039] In the figure, 100 brush plate, 110-inner plate body, 111-card hole, 112-card groove, 113-screw buckle, 1131-arc segment, 1132-straight segment, 114-holding groove, 120-outer plate body, 121-concave cavity, 122-connecting hole, 123-internal thread, 124-water outlet channel, 130-cleaning body, 131-soft bristle bundle, 132-hard bristle bundle, 133-bristles, 134-soft sponge, 135-hard sponge,

[0040] 200- housing, 210- shell, 220- bottom shell,

[0041] 300-transmission assembly, 310-inner shaft, 311-gear part, 312-card joint, 313-card block, 314-stop protrusion, 320-outer shaft, 321-external thread, 330-connecting sleeve, 340-first bearing group, 350-second bearing group, 360-bracket, 361-gear ring, 370-planetary gear, 371-upper gear part, 372-lower gear part, 381-upper planet carrier, 382-lower planet carrier, 390-support shaft, 31-driving wheel, 32-first planetary gear, 33-first planet carrier, 34-sun gear, 35-secondary planetary gear, 36-secondary planet carrier, 37-gear ring cylinder, 38-connecting shaft, 39-connecting cylinder,

[0042] 400-motor, 410-shaft,

[0043] 500-reducer, 510-output shaft,

[0044] 600-Support frame. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or positional relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0046] Embodiment 1

[0047] Combination Figures 1 to 6 A brush plate 100 for an electric cleaning brush provided in a first embodiment of the utility model comprises an inner plate body 110 and an outer plate body 120. The inner plate body 110 is arranged on the inner periphery of the outer plate body 120. A cleaning body 130 is arranged on the bottom surface of the inner plate body 110 and the bottom surface of the outer plate body 120. The cleaning body 130 is provided with at least two types of soft and hard cleaning bodies, and the height of the soft cleaning body is not lower than that of the hard cleaning body.

[0048] The user can choose a softer cleaning body or a harder cleaning body to scrape the dirt according to the degree of dirt without having to replace the brush disc, which is conducive to improving the user's experience. When the height of the soft cleaning body is greater than the height of the hard cleaning body, when the user applies force to the brush disc 100 during use to make the cleaning body 130 scrape the object to be cleaned or the surface to be cleaned, the softer cleaning body is deformed to a greater extent, and the harder cleaning body is deformed to a lesser extent. Since the height of the softer cleaning body is greater than the height of the harder cleaning body, the soft cleaning body with greater deformation and the hard cleaning body with less deformation can both effectively contact the object to be cleaned or the surface to be cleaned, so that both the soft cleaning body and the hard cleaning body can effectively scrape and brush. The user can change the scraping force of the soft cleaning body and the hard cleaning body by changing the pressure applied to the brush disc 100, so that the user can reasonably apply force to the brush disc 100 according to the scraping requirements.

[0049] Combination Figure 1 , Figure 2In this embodiment, the cleaning body 130 on the bottom surface of the brush disc 100 adopts a bristle structure of the same material. Specifically, the cleaning body 130 includes a soft bristle bundle 131 and a hard bristle bundle 132. The height of the soft bristle bundle 131 is preferably greater than the height of the hard bristle bundle 132. As a preferred solution of this embodiment, the bottom surface of the inner disc body 110 is provided with multiple clusters of evenly distributed soft bristle bundles 131, and the bottom surface of the outer disc body 120 is provided with multiple clusters of evenly distributed hard bristle bundles 132, that is, the bottom surface of the brush disc 100 adopts a distribution method of soft inside and hard outside. When the brush disc 110 is assembled on the electric cleaning brush, the bottom surface of the inner disc body 110 is roughly flush with the bottom surface of the outer disc body 120. Accordingly, the lower end of the soft bristle bundle 131 is lower than the lower end of the hard bristle bundle 132 and there is a height difference Δh between the two. As an alternative to the present embodiment, the bottom surface of the inner disk body 110 may be provided with multiple clusters of evenly distributed hard bristle bundles 132, and the bottom surface of the outer disk body 120 may be provided with multiple clusters of evenly distributed soft bristle bundles 131, that is, the bottom surface of the brush disk 100 adopts a hard inside and soft outside distribution.

[0050] In this embodiment, both the soft bristle bundle 131 and the hard bristle bundle 132 are composed of a plurality of bristles 133, and the bristles of the soft bristle bundle 131 and the hard bristle bundle 132 are made of the same plastic, nylon or other materials. In addition, the diameter of the bristles constituting the soft bristle bundle 131 is consistent with the diameter of the bristles constituting the hard bristle bundle 132. Under the premise of the same thickness, the longer the bristles are, the softer they are, and the shorter the bristles are, the harder they are, so that the soft bristle bundles 131 and the hard bristle bundles 132 with different heights have soft and hard distinctions. Specifically, the roots of the soft bristle bundle 131 are planted and fixed at the bottom of the inner disk body 110, and the roots of the hard bristle bundle 132 are planted and fixed at the bottom of the outer disk body 120. The height H1 of the soft bristle bundle 131 refers to the distance that the soft bristle bundle 131 extends downward relative to the bottom surface of the inner disk body 110, and the height H2 of the hard bristle bundle 132 refers to the distance that the hard bristle bundle 132 extends downward relative to the bottom surface of the outer disk body 120. The height H1 of the soft bristle bundle 131 is greater than the height H2 of the hard bristle bundle 132, and H1-H2 is Δh.

[0051] In this embodiment, 1mm≤Δh≤10mm. Specifically, the height H1 of the soft bristle bundle 131 is about 24mm, and the height H2 of the hard bristle bundle 132 is about 20mm. Accordingly, the height difference Δh between the soft bristle bundle 131 and the hard bristle bundle 132 is about 4mm. As an alternative to this embodiment, the height H1 of the soft bristle bundle 131 can also be set to other reasonable sizes such as 20mm, 21mm, 22mm, 23mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, etc., the height H2 of the hard bristle bundle 131 can also be set to other reasonable sizes such as 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 23mm, 24mm, 25mm, etc., and the height difference Δh between the soft bristle bundle 131 and the hard bristle bundle 132 can also be set to other reasonable sizes such as 1mm, 2mm, 3mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0052] When there is liquid in the scraping process, the hair bundle will absorb water. The water temporarily stored in the hair bundle will cause the bristles 133 of the same hair bundle to be sucked together, which is not conducive to improving the scraping effect of the hair bundle. Figure 3 In this embodiment, the bristles constituting the soft bristle bundle 131 and the bristles constituting the hard bristle bundle 132 are preferably arranged in a wavy shape, so that the bristle bundle consisting of a plurality of wavy bristles 133 can also remain fluffy after absorbing water, thereby ensuring the scraping effect of the bristle bundle on the object or surface to be cleaned. As an alternative to this embodiment, the bristles 133 constituting the soft bristle bundle 131 can be straight bristles, and the bristles 133 constituting the hard bristle bundle 132 can also be straight bristles.

[0053] In this embodiment, in order to better meet the scraping and brushing requirements, two inner discs 110 are configured, and one outer disc 120 is configured. The lengths of the soft hair bundles 131 on the bottom surfaces of the two inner discs 110 are different, so that the soft and hard degrees of the soft hair bundles 131 on the bottom surfaces of the two inner discs 110 are different. Any inner disc 110 can be combined with the outer disc 120 to form a brush disc 100, which is convenient for users to select and assemble according to actual scraping and brushing requirements, so that the electric cleaning brush can be used for multiple purposes, reducing the user's purchase cost while improving the user's experience. For the convenience of user identification, the colors of the hair bundles with different hardness are different. As an alternative to this embodiment, only one inner disc 110 can be configured, and in this case, two outer discs 120 can be configured; of course, the inner disc 110 and the outer disc 120 can also be configured as one, two, three, four or other reasonable numbers, and the number of inner discs 110 and the number of outer discs 120 can be different or the same.

[0054] Combination Figure 4 , Figure 6In order to arrange the hair bundles, the bottom surface of the inner plate 110 and the bottom surface of the outer plate 120 are provided with a plurality of evenly distributed small holes, and the roots of the hair bundles are planted and fixed in the small holes. Figure 6 The inner circumference of the outer disk body 120 is provided with a concave cavity 121 which is concave upward from the bottom surface. Figure 1 When the inner plate body 110 and the outer plate body 120 are combined together, the inner plate body 110 is received in the concave cavity 121 , and the bottom surface of the inner plate body 110 is substantially flush with the bottom surface of the outer plate body 120 .

[0055] Combination Figure 7 The present embodiment also provides an electric cleaning brush, comprising a housing 200, a motor 400, a transmission assembly 300 and the brush plate 100 described above, wherein the motor 400 and the transmission assembly 300 are arranged inside the housing 200, the transmission assembly 300 comprises an inner shaft 310 and an outer shaft 320 sleeved outside the inner shaft 310, the inner disc body 110 is detachably connected to the inner shaft 310, the outer disc body 120 is detachably connected to the outer shaft 320, and the motor 400 drives the inner disc body 110 and the outer disc body 120 to rotate in opposite directions through the transmission assembly 300. The inner disc body 110 and the outer disc body 120 rotating in opposite directions can offset part of the centrifugal force of each other, thereby reducing the tendency of the electric cleaning brush to move when the brush plate 100 rotates, thereby reducing the strength required for the user to hold the body, which is conducive to improving the user experience.

[0056] Combination Figure 7 , Figure 8 , Fig. 9The housing 200 includes a housing 210 and a bottom housing 220 fixed together, and the electric cleaning brush also includes a reducer 500. The reducer 500 includes an input shaft, an output shaft 510 and a planetary gear reduction structure, and the planetary gear reduction structure is arranged between the input shaft and the output shaft 510. The rotating shaft of the motor 400 is drivingly connected to the input shaft of the reducer 500, and the upper end of the inner shaft 310 is directly drivingly connected to the output shaft 510 of the reducer 500 through a connecting sleeve 330. The outer shaft 320 is axially hollow, and the inner shaft 310 is rotatably mounted inside the outer shaft 320 through a first bearing group 340, and the outer shaft 320 is rotatably mounted on the bottom housing 220 through a second bearing group 350. The upper end of the inner shaft 310 is provided with a gear portion 311 located above the outer shaft 320. The transmission assembly 300 also includes a bracket 360, a planetary wheel 370, an upper planetary carrier 381 and a lower planetary carrier 382. The bracket 360 is fixed to the bottom of the reducer 500. The lower part of the bracket 360 is provided with a ring gear 361. The upper planetary carrier 381 is arranged at the bottom of the bracket 360. The lower planetary carrier 382 is located below the upper planetary carrier 381. The planetary wheel 370 is mounted between the upper planetary carrier 381 and the lower planetary carrier 382 through a support shaft 390. The upper end of the support shaft 390 is fixedly connected to the upper planetary carrier 381, the lower end of the support shaft 390 is fixedly connected to the lower planetary carrier 382, ​​and the upper end of the outer shaft 320 is fixedly connected to the upper planetary carrier 381. The ring gear 361 on the bracket 360 and the gear part 311 on the inner shaft 310 are distributed up and down, and two or three planetary gears 370 are evenly spaced along the circumferential direction, and each planetary gear 370 includes an upper tooth part 371 meshing with the ring gear 361 and a lower tooth part 372 meshing with the gear part 311. When the motor 400 is working, the power is output to the outside through the output shaft 510 of the reducer 500, and the output shaft 510 drives the inner shaft 310 to rotate synchronously through the connecting sleeve 330. The rotating inner shaft 310 drives the upper planetary carrier 381 and the lower planetary carrier 382 to rotate through the meshing of the gear part 311 and the planetary gear 370, and the lower planetary carrier 382 drives the outer shaft 320 to rotate synchronously. Since the gear portion 311 and the planetary gear 370 are meshed with each other and their rotation directions are opposite, the inner shaft 310 and the planetary carrier have opposite rotation directions, and thus the inner shaft 310 and the outer shaft 320 also have opposite rotation directions, thereby achieving the purpose of the motor 400 driving the inner shaft 310 and the outer shaft 320 to rotate in the opposite direction through the transmission assembly 300.

[0057] In order to facilitate the replacement of the brush plate 100, in this embodiment, the outer plate body 120 is detachably connected to the lower end of the outer shaft 320 through threaded engagement, and the inner plate body 110 is detachably connected to the lower end of the inner shaft 310 through snap-fit ​​engagement. The lower end of the outer shaft 320 extends downward from the bottom shell 220 to the housing 200, and an outer thread 321 is provided on the outer peripheral surface of the lower end of the outer shaft 320. Figure 6The center of the outer disk body 120 is provided with a connecting hole 122 located at the top of the concave cavity 121 and connected to the concave cavity 121. The inner wall of the connecting hole 122 is provided with an internal thread 123. The outer disk body 120 is detachably connected to the lower end of the outer shaft 320 through the cooperation of the internal thread 123 and the external thread 321. Fig.10 The lower end of the inner shaft 310 extends downward from the housing 200, and a clamping joint 312 extending from the outer shaft 320 is fixed to the lower end of the inner shaft 310. A plurality of clamping blocks 313 are arranged at intervals along the circumferential direction on the outer circumferential surface of the clamping joint 312. Figure 5 A snap-in hole 111 cooperating with the snap-in joint 312 is provided at the center of the inner disk body 110, and a turn buckle 113 corresponding to the snap-in block 313 is provided on the inner wall of the snap-in hole 111. The inner disk body 110 can be detachably connected to the lower end of the inner shaft 310 through the cooperation of the turn buckle 113 on the inner wall of the snap-in hole 111 and the snap-in block 313 on the outer peripheral surface of the snap-in joint 312.

[0058] In order to ensure the connection strength of the outer disk body 120, the thread rotation direction of the threaded fitting is preferably set opposite to the rotation direction of the outer shaft 320, so that the threaded fitting can be tightened when the outer shaft 320 drives the outer disk body 120 to rotate, thereby preventing the outer disk body 120 from loosening relative to the outer shaft 320. In order to ensure the connection strength of the inner disk body 110, the engagement direction of the turn button 113 and the clamping block 313 is preferably set opposite to the rotation direction of the inner shaft 310, thereby preventing the turn button 113 and the clamping block 313 from loosening when the inner disk body 110 rotates. Further, the turn button 113 includes an arc segment 1131 extending circumferentially along the clamping hole 111 and a straight segment 1132 extending axially along the clamping hole 111. The arc segment 1131, the straight segment 1132 and the inner bottom wall of the clamping hole 111 are combined to form the clamping groove 112. Fig.11 The upper surface of the clamping block 313 and the lower surface of the arc segment 1131 are both provided with a stop protrusion 314. When the clamping block 313 is clamped and screwed with the clamping groove 112, the stop protrusion 314 on the upper surface of the clamping block 313 and the stop protrusion 314 on the lower surface of the arc segment 1131 collide with each other in the circumferential direction of the clamping hole 111, so that the clamping block 313 is limited in the circumferential direction, so that the clamping block 313 that cooperates with the clamping groove 112 is subjected to an anti-retreat force, thereby further improving the structural stability of the inner disk body 110.

[0059] In order to control the radial dimension of the transmission assembly 300, it is necessary to reasonably set the speed ratio of the inner shaft 310 and the outer shaft 320, so as to reasonably set the speed ratio of the inner disk body 110 and the outer disk body 120. In this embodiment, the speed ratio of the inner disk body 110 and the outer disk body 120 is 1:1 to 9:1. Specifically, after the reduction transmission of the transmission assembly 300, the speed of the outer shaft 320 is lower than the speed of the inner shaft 310, and the speed ratio of the inner shaft 310 and the outer shaft 320 is about 4:1, so that the speed ratio of the inner disk body 110 and the outer disk body 120 is also 4:1. It can be understood that the speed ratio of the inner disk body 110 and the outer disk body 120 can also be set to other reasonable sizes such as 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, etc.

[0060] Combination Figure 4 In order to facilitate the user to replace the inner disk body 110, a plurality of gripping grooves 114 are provided on the outer circumference of the inner disk body 110, which are spaced apart and concave toward the center of the inner disk body 110. The gripping grooves 114 allow the user to effectively grip the inner disk body 110, so that the user can effectively twist the inner disk body 110 so that the inner disk body 110 can be snapped into place or detached from the inner shaft 310.

[0061] Combination Figure 6 In order to improve the scraping effect of the brush plate 100 on the object to be cleaned, a plurality of water outlet channels 124 evenly spaced along the circumferential direction may be provided on the top wall of the cavity 121. The specific structure of the water outlet channels 124 may refer to the specific record in CN216876248U and will not be repeated here.

[0062] When in use, the outer disc 120 is first connected to the lower end of the outer shaft 320 by threaded engagement, and then the inner disc 110 is connected to the lower end of the inner shaft 310 by snap engagement. The motor 400 is started by a button on the housing 200, and the working motor 400 drives the inner disc 110 and the outer disc 120 to rotate in opposite directions through the reducer 500 and the transmission assembly 300. The inner disc 110 and the outer disc 120 rotate in opposite directions, and the cleaning body 130 scrapes the object or surface to be cleaned. Since the soft bristle bundle 131 on the bottom surface of the inner disc 110 and the hard bristle bundle 132 on the bottom surface of the outer disc 120 have different degrees of hardness, the user can use the hard bristle bundle 132 or the soft bristle bundle 131 to scrape and brush local dirt according to the scraping needs.

[0063] In this embodiment, the hardness of the cleaning body of the same material is differentiated according to the degree of deformation of the cleaning body when the brush plate 100 is subjected to the same pressure. When the brush plate 100 is subjected to the same pressure, the deformation degree of the soft bristle bundle 131 is greater than that of the hard bristle bundle 132.

[0064] It is understandable that in this embodiment, the heights of the soft bristle bundle 131 and the hard bristle bundle 132 can also be set to be consistent, that is, the lower end of the soft bristle bundle 131 is substantially flush with the lower end of the hard bristle bundle 132.

[0065] It is understandable that the electric cleaning brush of this embodiment can be powered by a battery, or can be powered by a mains power supply through an electric wire.

[0066] It can be understood that the overall shape of the electric cleaning brush of this embodiment can be set to a pistol-type structure, a straight-line structure, or an extended rod-shaped structure.

[0067] It can be understood that in this embodiment, the bristle bundle structure at the bottom of the brush plate 100 can adopt three or four types of different hardness and softness, and the heights of various bristle bundles can increase or decrease successively from the inside to the outside. At this time, two or more bristle bundles of different hardness and softness distributed successively from the inside to the outside can be arranged on the bottom surface of the inner plate body 110, or two or more bristle bundles of different hardness and softness distributed successively from the inside to the outside can be arranged on the bottom surface of the outer plate body 120.

[0068] It is understandable that the bottom of the brush plate 100 in this embodiment may also adopt other structures suitable for cleaning, such as a scouring pad structure and a chenille structure. When the scouring pad structure is adopted, the scouring pad disposed at the bottom of the inner plate body 110 and the outer plate body 120 may be distributed in a manner of being thick inside and thin outside or thin inside and thick outside; when the chenille structure is adopted, the chenille disposed at the bottom of the inner plate body 110 and the outer plate body 120 may be distributed in a manner of being thick inside and thin outside or thin inside and thick outside.

[0069] Embodiment 2

[0070] Combination Fig.12 , Fig.13In this embodiment, the motor 400 drives the inner disk body 110 and the outer disk body 120 to rotate in the same direction through the transmission assembly 300. Specifically, the motor 400 has a rotating shaft 410 for outputting power, and the transmission assembly 300 is arranged at the bottom of the motor 400. The transmission assembly 300 also includes a driving wheel 31, a primary planetary gear 32, a primary planetary carrier 33, a sun gear 34, a secondary planetary gear 35, a secondary planetary carrier 36, a gear ring cylinder 37, a connecting shaft 38 and a connecting cylinder 39. The driving wheel 31 is sleeved on the rotating shaft 410. Two or three primary planetary gears 32 are evenly spaced along the outer circumference of the driving wheel 31. Each primary planetary gear 32 is arranged on the primary planetary carrier 33 through an axis and meshes with the driving wheel 31. The sun gear 34 is located at the bottom of the primary planetary carrier 33 and meshes with the primary planetary carrier 33 is integrally formed or fixedly connected, the secondary planet carrier 36 is arranged at the bottom of the sun gear 34, two or three secondary planetary gears 35 are evenly spaced along the outer circumference of the sun gear 34, each secondary planetary gear 35 is arranged on the secondary planet carrier 36 through an axis and meshes with the sun gear 34, the primary planetary gear 32, the primary planetary carrier 33, the sun gear 34, the secondary planetary gear 35, and the secondary planet carrier 36 are arranged on the inner circumference of the gear ring cylinder 37, and at the same time, the primary planetary gear 32 and the secondary planetary gear 35 are meshed with the teeth on the inner wall of the gear ring cylinder 37. The upper end of the coupling shaft 38 is fixedly connected to the driving wheel 31, the lower end of the coupling shaft 38 is fixedly connected to the upper end of the inner shaft 310 through the coupling cylinder 39, and the upper end of the outer shaft 320 is fixedly connected to the secondary planet carrier 36. When the motor 400 is working, the rotating shaft 410 drives the driving wheel 31 to rotate synchronously. On the one hand, the driving wheel 31 drives the inner shaft 310 to rotate through the connecting shaft 38 and the connecting cylinder 39. On the other hand, the driving wheel 31 drives the outer shaft 320 to rotate through the primary planetary gear 32, the primary planetary carrier 33, the sun gear 34, the secondary planetary gear 35 and the secondary planetary carrier 36. The meshing between the driving wheel 31 and the primary planetary gear 32, and the meshing between the sun gear 34 and the secondary planetary gear 35 make the inner shaft 310 and the outer shaft 320 rotate in the same direction, thereby realizing the same-direction rotation of the inner disk body 110 and the outer disk body 120. In this embodiment, a support frame 600 is provided between the motor 400 and the transmission assembly 300, and the motor 400 can be fixed in the housing 200 through the support frame 600, and the primary planetary gear 32 is provided at the bottom of the support frame 600.

[0071] The other structures of the second embodiment are the same as those of the first embodiment and will not be described in detail here.

[0072] Embodiment 3

[0073] In this embodiment, under the premise that the height of the soft bristle bundle is greater than that of the hard bristle bundle, the diameter of the bristles constituting the soft bristle bundle is D1, and the diameter of the bristles constituting the hard bristle bundle is D2, and D1<D2. For bristles of the same material, the smaller the diameter, the softer the bristles, and the larger the diameter, the harder the bristles. Under the premise that the heights of the soft bristle bundle and the hard bristle bundle are different, the difference in softness and hardness between the soft bristle bundle and the hard bristle bundle can be further increased by the thickness of the bristles. As an optional solution of this embodiment, the difference between D1 and D2 can be set to reasonable sizes such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc.

[0074] In this embodiment, the bristles on the bottom surface of the brush plate may be distributed in a manner of being soft inside and hard outside, or in a manner of being hard inside and soft outside.

[0075] In this embodiment, the inner disc body and the outer disc body of the brush disc can rotate in the same direction when driven by the motor, and can also rotate in opposite directions when driven by the motor.

[0076] The other structures of the third embodiment are the same as those of the first embodiment and will not be described in detail here.

[0077] Embodiment 4

[0078] Combination Fig.14 In this embodiment, the cleaning body on the bottom of the brush plate 100 adopts a sponge structure of the same material. The cleaning body 130 includes a soft sponge 134 and a hard sponge 135. The height of the soft sponge 134 is greater than that of the hard sponge 135. Specifically, the soft sponge 134 is arranged on the bottom surface of the inner plate body 110, and the hard sponge 135 is arranged on the bottom surface of the outer plate body 120. The bottom surface of the brush plate 100 adopts a sponge structure that is soft inside and hard outside. When the user applies force to the brush plate 100 during use, the force deformation degree of the soft sponge 134 is relatively large, and the force deformation degree of the hard sponge 135 is relatively small, so that both the soft and hard sponges can effectively scrape the object or surface to be cleaned. The soft sponge 134 can be used for foaming, and the hard sponge 135 can be used to scrape off dirt.

[0079] In this embodiment, the soft sponge 134 and the hard sponge 135 can be made of the same sponge material. The density of the hard sponge 135 is greater than that of the soft sponge 134 . The hard sponge 135 is denser than the soft sponge 134 , so that the hard sponge 135 is harder than the soft sponge 134 .

[0080] In this embodiment, the height difference Δh between the soft sponge 134 and the hard sponge 135 can be set to a reasonable difference such as 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0081] In this embodiment, the inner disc body 110 and the outer disc body 120 of the brush disc 100 can rotate in the same direction or in opposite directions when driven by the motor.

[0082] In this embodiment, the soft sponge 134 can be fixedly installed on the bottom surface of the inner disk body 110 in an irremovable manner, or can be removably installed on the bottom surface of the inner disk body 110 by means of Velcro, magnetism, etc. The hard sponge 135 can be fixedly installed on the bottom surface of the outer disk body 120 in an irremovable manner, or can be removably installed on the bottom surface of the outer disk body 120 by means of Velcro, magnetism, etc.

[0083] As an alternative to this embodiment, the hard sponge 135 may be disposed on the bottom surface of the inner plate 110 , and the soft sponge 134 may be disposed on the bottom surface of the outer plate 120 .

[0084] As an alternative to this embodiment, the heights of the soft sponge 134 and the hard sponge 135 may also be set to be consistent.

[0085] The other structures of the fourth embodiment are the same as those of the first embodiment and will not be described in detail here.

[0086] Embodiment 5

[0087] Combination Fig.15 In this embodiment, the cleaning body disposed at the bottom of the inner disc body 110 and the cleaning body disposed at the bottom of the outer disc body 120 are made of different materials, that is, the cleaning body at the bottom of the brush disc 100 has different materials. Specifically, a soft bristle bundle 131 is disposed on the bottom surface of the inner disc body 110, and a hard sponge 135 is disposed on the bottom surface of the outer disc body 120. The height H3 of the soft bristle bundle 131 extending downward relative to the bottom surface of the brush disc 100 is greater than the height H4 of the hard sponge 135 extending downward relative to the bottom surface of the brush disc 100. When the user applies force to the brush disc 100 during use, the deformation degree of the soft bristle bundle 131 is greater than the deformation degree of the hard sponge 135.

[0088] As an alternative to the present embodiment, a soft sponge may be provided on the bottom surface of the inner plate 110 , and a hard bristle bundle may be provided on the bottom surface of the outer plate 120 .

[0089] As an alternative to the present embodiment, a cleaning body made of other materials such as a scouring pad or chenille may be provided on the bottom surface of the inner tray 110 .

[0090] As an alternative to the present embodiment, a cleaning body made of other materials such as a scouring pad or chenille may also be provided on the bottom surface of the outer disk 120 .

[0091] In this embodiment, the hardness of the cleaning bodies made of different materials can be distinguished according to the deformation degree of the cleaning bodies when the brush plate 100 is subjected to the same pressure. When the brush plate 100 is subjected to the same pressure, the deformation degree of the soft cleaning body is greater than that of the hard cleaning body.

[0092] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not deviate from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A brush plate for an electric cleaning brush, comprising an inner plate body and an outer plate body, wherein the inner plate body is arranged on the inner periphery of the outer plate body, and the bottom surfaces of the inner plate body and the outer plate body are both provided with cleaning bodies, characterized in that: The cleaning body is provided with at least two types of soft and hard cleaning bodies, and the height of the soft cleaning body is not lower than that of the hard cleaning body.

2. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The cleaning bodies are made of the same material; Alternatively, the cleaning bodies are made of different materials.

3. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The cleaning body comprises a soft sponge and a hard sponge, and the height of the soft sponge is greater than that of the hard sponge.

4. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The cleaning body comprises a soft bristle bundle and a hard bristle bundle, and the height of the soft bristle bundle is greater than the height of the hard bristle bundle.

5. A brush plate for an electric cleaning brush according to claim 4, characterized in that: The soft bristle bundle and the hard bristle bundle are both composed of a plurality of bristles, wherein the diameter of the bristles constituting the soft bristle bundle is smaller than the diameter of the bristles constituting the hard bristle bundle.

6. A brush plate for an electric cleaning brush according to claim 4, characterized in that: The soft bristle bundle and the hard bristle bundle are both composed of a plurality of bristles, and the bristles are wavy.

7. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The height of the soft cleaning body is greater than that of the hard cleaning body, and a height difference Δh between the two is 1 mm to 10 mm.

8. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The cleaning body comprises a soft cleaning body arranged on the bottom surface of the inner disc body and a hard cleaning body arranged on the bottom surface of the outer disc body; or, the cleaning body comprises a hard cleaning body arranged on the bottom surface of the inner disc body and a soft cleaning body arranged on the bottom surface of the outer disc body.

9. A brush plate for an electric cleaning brush according to claim 1, characterized in that: The inner periphery of the outer plate is provided with a concave cavity for accommodating the inner plate. When the inner plate and the outer plate are combined, they are located in the concave cavity. The bottom surfaces of the combined inner plate and the outer plate are flush with each other.

10. An electric cleaning brush, comprising a housing, a motor, and a transmission assembly, wherein the motor and the transmission assembly are arranged inside the housing, and the transmission assembly comprises an inner shaft and an outer shaft sleeved outside the inner shaft, characterized in that: It also includes a brush disc for an electric cleaning brush as described in any one of claims 1 to 9, the brush disc is located outside the casing, the inner disc body is detachably connected to the inner shaft, the outer disc body is detachably connected to the outer shaft, and the motor drives the inner disc body and the outer disc body to rotate in opposite directions or in the same direction through a transmission assembly.

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