Cleaning brush with positive and negative rotation structure

Abstract

The utility model discloses a cleaning brush with a forward and reverse rotation structure. The cleaning brush comprises a fixed gearbox, a power source, a first gear set, a second gear set, a third gear set, an inner brush rotating shaft, an outer brush rotating shaft, an inner brush and an outer brush. Inner teeth are arranged on the inner wall of the fixed gearbox. The first gear set comprises a first sun gear, a plurality of first planetary gears and a first rotating plate. The second gear set comprises a second sun gear and a plurality of second planetary gears; the third gear set comprises a third sun gear and a plurality of third planetary gears, the other end of the outer brush rotating shaft is connected with an outer brush, the outer brush rotating shaft movably sleeves the inner brush rotating shaft, the third planetary gears are meshed with the third sun gear, a containing groove is formed in the center of the outer brush, and the inner brush is rotationally arranged in the containing groove. The cleaning brush has the advantages that the rotating directions of the outer brush and the inner brush are opposite, the working surfaces of the outer brush and the inner brush rotate in two directions, the outer brush and the inner brush can alternately clean the cleaning surface, and the cleaning is cleaner.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a cleaning brush with a forward and reverse rotation structure. Background Art

[0002] The brush heads of current electric cleaning brushes mostly rotate in one direction. When in use, the brush head of the cleaning brush contacts the surface of an object and cleans the surface of the object. However, since the brush head rotates in one direction, the cleaning may not be thorough and the brush head of the cleaning brush is easy to fall off the cleaning surface. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a cleaning brush with a forward and reverse structure in view of the deficiencies of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A cleaning brush with a forward and reverse reversing structure comprises a fixed gear box, a power source, a first gear set, a second gear set, a third gear set, an inner brush rotating shaft, an outer brush rotating shaft, an inner brush and an outer brush; the inner wall of the fixed gear box is provided with inner teeth, the first gear set comprises a first sun gear connected to the main shaft of the power source, a plurality of first planetary gears and a first rotating plate, the main shafts of the plurality of first planetary gears are respectively rotatably connected to the first rotating plate, the first planetary gears and the first sun gear are meshed with each other, the plurality of first planetary gears are arranged in the fixed gear box and meshed with the inner teeth of the fixed gear box; the second gear set comprises a second sun gear arranged at the axis of the first rotating plate, and a plurality of second planetary gears, one end of the inner brush rotating shaft is provided with a second rotating plate, the The other end of the inner brush shaft is connected to an inner brush, and the main shafts of several second planetary gears are respectively rotatably connected to the second rotating plate, the second planetary gears are meshed with the second sun gear, and the second planetary gears are arranged in the fixed gear box and meshed with the inner teeth of the fixed gear box; the third gear set includes a third sun gear fixedly sleeved on the outside of the inner brush shaft, and several third planetary gears, one end of the outer brush shaft is provided with a ring gear, the other end of the outer brush shaft is connected with an outer brush, the outer brush shaft is movably sleeved outside the inner brush shaft, the third planetary gears are meshed with the third sun gear, the third planetary gears are arranged in the ring gear and meshed with the ring gear, a receiving groove is provided at the center of the outer brush, and the inner brush is rotatably arranged in the receiving groove.

[0006] A preferred solution is that the outer brush shaft is provided with a bearing on its outer sleeve, and the bearing is arranged in a fixed gear box.

[0007] A preferred solution is that the power source is an electric motor.

[0008] A preferred solution is that the number of the first planetary gears is 3, the number of the second planetary gears is 3, and the number of the third planetary gears is 3.

[0009] A preferred solution is that the fixed gear box includes an upper fixed box and a lower fixed box, the upper fixed box and the lower fixed box are connected through an axial hole, the inner wall of the lower fixed box is provided with internal teeth, a plurality of first planetary gears and second planetary gears are respectively arranged in the lower fixed box, the inner brush shaft passes through the axial hole, and the ring gear and the third sun gear are located in the upper fixed box.

[0010] The cleaning brush of the forward and reverse rotation structure provided by the embodiment of the utility model has at least the following beneficial effects: the power source drives the first sun gear to rotate, the first sun gear drives the first planetary gear and the first rotating plate to rotate, the first planetary gear rotates around the first sun gear and the fixed gear box, the first rotating plate drives the second sun gear to rotate, the second sun gear drives the second sun gear and the second rotating plate to rotate, the second rotating plate drives the inner brush shaft to rotate, the third sun gear and the inner brush rotate together with the inner brush shaft, the third sun gear drives the third planetary gear to rotate, the third planetary gear drives the gear ring to rotate, the gear ring drives the outer brush shaft to rotate, the rotation direction of the gear ring is opposite to the rotation direction of the third sun gear, so the rotation directions of the outer brush and the inner brush are opposite. The rotation directions of the outer brush and the inner brush are opposite, the working surfaces of the outer brush and the inner brush produce rotation in two directions, the outer brush and the inner brush can alternately clean the cleaning surface, the cleaning is cleaner, and at the same time, the friction force can be balanced when used to prevent the brush head from being thrown away from the cleaning surface by the unbalanced friction force, and the transmission is stable.

[0011] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0015] In order to explain the idea and purpose of the present application, the present application will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", "left", "right", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] like Figures 1 to 3As shown, the embodiment of the present application provides a cleaning brush with a forward and reverse structure, including a fixed gear box 10, a power source 20, a first gear set 30, a second gear set 40, a third gear set 50, an inner brush shaft 60, an outer brush shaft 70, an inner brush 62 and an outer brush 72; the inner wall of the fixed gear box 10 is provided with an inner tooth 11, the first gear set 30 includes a first sun gear 31 connected to the main shaft of the power source 20, a plurality of first planetary gears 32 and a first rotating plate 33, the main shafts of the plurality of first planetary gears 32 are respectively rotatably connected to the first rotating plate 33, the first planetary gears 32 and the first sun gear 31 are meshed with each other, and the plurality of first planetary gears 32 are arranged in the fixed gear box 10 and meshed with the inner teeth 11 of the fixed gear box 10; the second gear set 40 includes a second sun gear 41 arranged at the axis of the first rotating plate 33, and a plurality of second planetary gears 42, one end of the inner brush shaft 60 is provided with a second rotating plate Plate 61, the other end of the inner brush shaft 60 is connected to an inner brush 62, the main shafts of several second planetary gears 42 are respectively rotatably connected to the second rotating plate 61, the second planetary gears 42 are meshed with the second sun gear 41, the second planetary gears 42 are arranged in the fixed gear box 10 and meshed with the inner teeth 11 of the fixed gear box 10; the third gear set 50 includes a third sun gear 51 fixedly sleeved on the outside of the inner brush shaft 60, and several third planetary gears 52, one end of the outer brush shaft 70 is provided with a ring gear 71, the other end of the outer brush shaft 70 is connected to an outer brush 72, the outer brush shaft 70 is movably sleeved on the outside of the inner brush shaft 60, the third planetary gears 52 are meshed with the third sun gear 51, the third planetary gears 52 are arranged in the ring gear 71 and meshed with the ring gear 71, the center of the outer brush 72 is provided with a receiving groove 721, and the inner brush 62 is rotatably arranged in the receiving groove 721.

[0019] like Figures 1 to 3 As shown, the power source 20 drives the first sun gear 31 to rotate, the first sun gear 31 drives the first planetary gear 32 and the first rotating plate 33 to rotate, the first planetary gear 32 rotates around the first sun gear 31 and the fixed gear box 10, the first rotating plate 33 drives the second sun gear 41 to rotate, the second sun gear 41 drives the second sun gear 41 and the second rotating plate 61 to rotate, the second rotating plate 61 drives the inner brush shaft 60 to rotate, the third sun gear 51 and the inner brush 62 rotate with the inner brush shaft 60, the third sun gear 51 drives the third planetary gear 52 to rotate, the third planetary gear 52 drives the ring gear 71 to rotate, the ring gear 71 drives the outer brush shaft 70 to rotate, the rotation direction of the ring gear 71 is opposite to the rotation direction of the third sun gear 51, so the rotation directions of the outer brush 72 and the inner brush 62 are opposite.

[0020] like Figures 1 to 3As shown, the outer brush 72 and the inner brush 62 rotate in opposite directions, and the working surfaces of the outer brush 72 and the inner brush 62 rotate in two directions. The outer brush 72 and the inner brush 62 can clean the cleaning surface alternately, and the cleaning is cleaner. At the same time, a balance of friction can be generated during use to prevent the brush head from being thrown away from the cleaning surface by unbalanced friction.

[0021] like Figures 1 to 3 As shown, the outer brush shaft 70 is provided with a bearing 80, and the bearing 80 is arranged in the fixed gear box 10. The bearing 80 supports and fixes the outer brush shaft 70.

[0022] like Figures 1 to 3 As shown, in the present invention, the power source 20 is a motor.

[0023] like Figures 1 to 3 As shown, the number of the first planetary gears 32 is three, the number of the second planetary gears 42 is three, and the number of the third planetary gears 52 is three.

[0024] like Figures 1 to 3 As shown, the fixed gear box 10 includes an upper fixed box 12 and a lower fixed box 13, the upper fixed box 12 and the lower fixed box 13 are connected through an axial hole, the inner wall of the lower fixed box 13 is provided with internal teeth 11, a plurality of first planetary gears 32 and a second planetary gear 42 are respectively arranged in the lower fixed box 13, the inner brush shaft 60 passes through the axial hole, and the ring gear 71 and the third sun gear 51 are located in the upper fixed box 12. The upper fixed box 12 supports the ring gear 71, and the second rotating plate 61 is located in the lower fixed box 13.

[0025] The above is a specific implementation of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. A cleaning brush with a forward and reverse rotation structure, characterized in that: It includes a fixed gear box, a power source, a first gear set, a second gear set, a third gear set, an inner brush shaft, an outer brush shaft, an inner brush and an outer brush; the inner wall of the fixed gear box is provided with internal teeth, the first gear set includes a first sun gear connected to the main shaft of the power source, a plurality of first planetary gears and a first rotating plate, the main shafts of the plurality of first planetary gears are respectively rotatably connected to the first rotating plate, the first planetary gears and the first sun gear are meshed with each other, and the plurality of first planetary gears are arranged in the fixed gear box and meshed with the inner teeth of the fixed gear box; the second gear set includes a second sun gear arranged at the axis of the first rotating plate, and a plurality of second planetary gears, one end of the inner brush shaft is provided with a second rotating plate, the other end of the inner brush shaft is provided with a second rotating plate, and the inner brush shaft is provided with a second rotating plate. One end is connected with an inner brush, and the main shafts of several second planetary gears are respectively rotatably connected with the second rotating plate, the second planetary gears are meshed with the second sun gear, and the second planetary gears are arranged in the fixed gear box and meshed with the inner teeth of the fixed gear box; the third gear set includes a third sun gear fixedly sleeved on the outside of the inner brush rotating shaft, and several third planetary gears, one end of the outer brush rotating shaft is provided with a ring gear, the other end of the outer brush rotating shaft is connected with an outer brush, the outer brush rotating shaft is movably sleeved outside the inner brush rotating shaft, the third planetary gears are meshed with the third sun gear, the third planetary gears are arranged in the ring gear and meshed with the ring gear, a receiving groove is provided at the center of the outer brush, and the inner brush is rotatably arranged in the receiving groove.

2. The cleaning brush with a forward and reverse structure according to claim 1, characterized in that: The outer brush shaft is outer-cased with a bearing, and the bearing is arranged in a fixed gear box.

3. The cleaning brush with a forward and reverse structure according to claim 1, characterized in that: The power source is a motor.

4. The cleaning brush with a forward and reverse structure according to claim 1, characterized in that: The number of the first planetary gears is 3, the number of the second planetary gears is 3, and the number of the third planetary gears is 3.

5. The cleaning brush with a forward and reverse structure according to claim 1, characterized in that: The fixed gear box includes an upper fixed box and a lower fixed box, the upper fixed box and the lower fixed box are connected through an axial hole, the inner wall of the lower fixed box is provided with internal teeth, a plurality of first planetary gears and second planetary gears are respectively arranged in the lower fixed box, the inner brush shaft passes through the axial hole, and the ring gear and the third sun gear are located in the upper fixed box.

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