A roll brush with a built-in motor

Abstract

The application provides a rolling brush with a built-in motor, comprising a rolling brush and a motor installed in the rolling brush, the motor drives the rolling brush through a speed reducer, the speed reducer comprises a planetary gear set, a driving shaft and a driving sleeve, one end of the planetary gear set is connected with a rotating shaft of the motor, the other end is connected with the driving shaft, the driving sleeve is fixed on the driving shaft, the driving sleeve is inserted into the rolling brush, the inside of the rolling brush is provided with a plurality of first rotation-stopping ribs, and the surface of the driving sleeve is provided with a plurality of second rotation-stopping ribs matched with the first rotation-stopping ribs. The rolling brush with the built-in motor provided by the application is connected with the driving shaft through the planetary gear set, so that the rotating speed of the motor is reduced and the torque is improved, and the rolling brush can rotate better during cleaning.

Description

Technical Field

[0001] This application relates to the field of roller brush technology, and more specifically to a roller brush with a built-in motor. Background Technology

[0002] Some existing electric cleaning tools use a motor installed inside the roller brush to drive its rotation, thereby achieving better cleaning results. Patent application number 202210067764.7 discloses a safe disassembly roller brush assembly and cleaning device. The roller brush assembly includes a roller brush and a disassembly / removal component. The roller brush includes a roller brush body and a drive structure. The roller brush body has a receiving cavity with at least one open end. The drive structure is housed within the receiving cavity. A first end cap covers the opening of the roller brush body. The disassembly / removal component passes through the first end cap and is fixedly connected to the drive structure. The disassembly / removal component can detach the first end cap and the drive structure from the roller brush body. This roller brush is directly driven to rotate by the motor's output shaft. To maintain a low rotation speed, a low-power motor is usually required. However, the torque of this motor is relatively low, which cannot maintain a large force to rotate the roller brush, thus affecting the cleaning effect. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The problem to be solved by this application is to provide a roller brush with a built-in motor, which can overcome the defects of the prior art.

[0005] (II) Technical Solution

[0006] The embodiments in this specification provide the following technical solutions:

[0007] This specification provides an embodiment of a roller brush with a built-in motor, including a roller brush and a motor installed inside the roller brush. The motor drives the roller brush through a reduction gear. The reduction gear includes a planetary gear set, a drive shaft, and a drive component. One end of the planetary gear set is connected to the motor shaft, and the other end is connected to the drive shaft. The drive component is fixed on the drive shaft and inserted into the roller brush. The inside of the roller brush is provided with a plurality of first anti-rotation ribs, and the surface of the drive component is provided with a plurality of second anti-rotation ribs that cooperate with the first anti-rotation ribs. The planetary gear set is used to reduce the speed of the motor, thereby driving the drive shaft, drive component, and roller brush as a whole to rotate slowly.

[0008] In some embodiments, the planetary gear set includes a first internal gear, a first external gear set, a second internal gear, and a second external gear set. The first internal gear is connected to the rotating shaft of the motor, the second internal gear is connected to the drive shaft, the first external gear set surrounds the first internal gear and meshes with the first internal gear, the second external gear set surrounds the second internal gear and meshes with the second internal gear, and a drive sleeve is fitted around the planetary gear set. The gear ring inside the drive sleeve meshes with the first external gear set and the second external gear set.

[0009] In some embodiments, the planetary gear set further includes a first mounting plate and a second mounting plate. The first external gear set is rotatably mounted on the first mounting plate, and the second external gear set is rotatably mounted on the second mounting plate. The two ends of the roller brush are respectively provided with a first positioning seat and a second positioning seat. The first positioning seat and the second positioning seat are mounted on the body of the external cleaning tool. The motor and the planetary gear set are provided with mounting sleeves. The mounting sleeves are fixed on the first positioning seat, and the roller brush is detachably mounted on the mounting sleeves.

[0010] In some embodiments, the end of the drive shaft is provided with a positioning part, the drive member is provided with a corresponding positioning hole, the positioning part passes through the mounting sleeve and is connected to the positioning hole, the second positioning seat is provided with a limiting post, one end of the roller brush is provided with a limiting hole, the limiting post passes through the limiting hole, and a locking buckle is rotatably installed on the second positioning seat by a torsion spring, the locking buckle is connected to the external cleaning tool body.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, the beneficial effects that can be achieved by the above-mentioned at least one technical solution adopted in the embodiments of this specification include at least the following: the motor in the roller brush is connected to the drive shaft through a planetary gear set, thereby reducing the speed of the motor and increasing the torque, so that the roller brush can rotate better during cleaning. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a sectional view from this application;

[0015] Figure 2 This is a perspective view in this application;

[0016] Figure 3This is a perspective view of the motor and planetary gear set in this application;

[0017] Figure 4 This is a perspective view of the planetary gear set in this application;

[0018] Figure 5 This is a perspective view of the drive sleeve in this application;

[0019] Figure 6 This is a perspective view of the mounting sleeve and drive component in this application;

[0020] Figure 7 This is a perspective view of the drive component in this application;

[0021] Figure 8 This is a three-dimensional view of the roller brush in this application.

[0022] The component names corresponding to the various reference numerals in the figure are as follows: 1. Roller brush; 2. Motor; 3. Drive shaft; 4. Drive component; 5. First anti-rotation rib; 6. Second anti-rotation rib; 7. First internal gear; 8. First external gear set; 9. Second internal gear; 10. Second external gear set; 11. Drive sleeve; 12. Gear ring; 13. First mounting plate; 14. Second mounting plate; 15. First positioning seat; 16. Second positioning seat; 17. Mounting sleeve; 18. Positioning part; 19. Positioning hole; 20. Limiting post; 21. Limiting hole; 22. Torsion spring; 23. Locking buckle. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0028] Combination Figures 1-8As shown, this application provides a roller brush with a built-in motor, including a roller brush 1 and a motor 2 installed inside the roller brush 1. The motor 2 drives the roller brush 1 through a reduction gear, which includes a planetary gear set, a drive shaft 3, and a drive component 4. One end of the planetary gear set is connected to the rotating shaft of the motor 2, and the other end is connected to the drive shaft 3. The drive component 4 is fixed on the drive shaft 3 and inserted into the roller brush 1. The inside of the roller brush 1 is provided with multiple first anti-rotation ribs 5, and the surface of the drive component 4 is provided with multiple second anti-rotation ribs 6 that cooperate with the first anti-rotation ribs 5. Therefore, the drive component 4 can drive the roller brush 1 to rotate synchronously. The planetary gear set is used to reduce the speed of the motor 2 and increase the torque of the motor 2, thereby driving the drive shaft 3, the drive component 4, and the roller brush 1 to rotate slowly as a whole. Specifically, the planetary gear set includes a first internal gear 7, a first external gear set 8, a second internal gear 9, and a second external gear set 8. The wheel set 10 has a first internal gear 7 connected to the shaft of the motor 2, a second internal gear 9 connected to the drive shaft 3, a first external gear set 8 surrounding the first internal gear 7 and meshing with it, and a second external gear set 10 surrounding the second internal gear 9 and meshing with it. A drive sleeve 11 is fitted around the planetary gear set. The gear ring 12 inside the drive sleeve 11 meshes with the first external gear set 8 and the second external gear set 10. When the motor 2 is running, it drives the first external gear set 8 to rotate through the first internal gear 7, which in turn drives the drive sleeve 11 to rotate through the gear ring 12. The gear ring 12 on the drive sleeve 11 also drives the second external gear set 10 to rotate synchronously, which in turn drives the second internal gear 9 and the drive shaft 3 connected to the second internal gear 9 to rotate. Finally, after multi-stage reduction, the drive component 4 and the roller brush 1 are driven to rotate as a whole.

[0029] In some embodiments, such as Figures 1-4The planetary gear set further includes a first mounting plate 13 and a second mounting plate 14. A first external gear set 8 is rotatably mounted on the first mounting plate 13, and a second external gear set 10 is rotatably mounted on the second mounting plate 14. The roller brush 1 has a first positioning seat 15 and a second positioning seat 16 at its two ends, respectively. The first positioning seat 15 and the second positioning seat 16 are mounted on the body of the external cleaning tool. The motor 2 and the planetary gear set are externally mounted with a mounting sleeve 17, which is fixed to the first positioning seat 15. The roller brush 1 is detachably mounted on the mounting sleeve 17. A locking buckle 23 is rotatably mounted on the second positioning seat 16 via a torsion spring 22, and the locking buckle 23 is connected to the external cleaning tool. The machine body is used to fix the second positioning seat 16 to the external cleaning tool body, thereby positioning the roller brush 1. Opening the locking buckle 23 allows the second positioning seat 16 to disengage from the roller brush 1, at which point the roller brush 1 can be detached. Specifically, the end of the drive shaft 3 is provided with a positioning part 18, and the drive component 4 is provided with a corresponding positioning hole 19. The positioning part 18 passes through the mounting sleeve 17 and is connected to the positioning hole 19. The positioning part 18 is a flat key, which allows the drive shaft 3 to drive the drive component 4 to rotate. The second positioning seat 16 is provided with a limiting post 20, and one end of the roller brush 1 is provided with a limiting hole 21. The limiting post 20 passes through the limiting hole 21, so that the roller brush 1 can rotate relative to the second positioning seat 16 after assembly and positioning.

[0030] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A roller brush with a built-in motor, comprising a roller brush (1) and a motor (2) mounted within the roller brush (1), characterized in that: The motor (2) drives the roller brush (1) through a reduction gear. The reduction gear includes a planetary gear set, a drive shaft (3) and a drive component (4). One end of the planetary gear set is connected to the rotating shaft of the motor (2), and the other end is connected to the drive shaft (3). The drive component (4) is fixed on the drive shaft (3) and inserted into the roller brush (1). The inside of the roller brush (1) is provided with a plurality of first anti-rotation ribs (5), and the surface of the drive component (4) is provided with a plurality of second anti-rotation ribs (6) that cooperate with the first anti-rotation ribs (5). The planetary gear set is used to reduce the speed of the motor (2), thereby driving the drive shaft (3), the drive component (4) and the roller brush (1) to rotate slowly as a whole.

2. The roller brush with a built-in motor according to claim 1, characterized in that, The planetary gear set includes a first internal gear (7), a first external gear set (8), a second internal gear (9), and a second external gear set (10). The first internal gear (7) is connected to the shaft of the motor (2), and the second internal gear (9) is connected to the drive shaft (3). The first external gear set (8) surrounds the first internal gear (7) and meshes with the first internal gear (7). The second external gear set (10) surrounds the second internal gear (9) and meshes with the second internal gear (9). A drive sleeve (11) is fitted on the outside of the planetary gear set. The gear ring (12) inside the drive sleeve (11) meshes with the first external gear set (8) and the second external gear set (10).

3. The roller brush with a built-in motor according to claim 2, characterized in that, The planetary gear set also includes a first mounting plate (13) and a second mounting plate (14), wherein the first external gear set (8) is rotatably mounted on the first mounting plate (13) and the second external gear set (10) is rotatably mounted on the second mounting plate (14).

4. The roller brush with a built-in motor according to claim 1, characterized in that, The roller brush (1) has a first positioning seat (15) and a second positioning seat (16) at its two ends respectively. The first positioning seat (15) and the second positioning seat (16) are installed on the body of the external cleaning tool. The motor (2) and the planetary gear set are provided with an installation sleeve (17). The installation sleeve (17) is fixed on the first positioning seat (15). The roller brush (1) is detachably mounted on the installation sleeve (17).

5. The roller brush with a built-in motor according to claim 4, characterized in that, The end of the drive shaft (3) is provided with a positioning part (18), and the drive member (4) is provided with a corresponding positioning hole (19). The positioning part (18) passes through the mounting sleeve (17) and is connected to the positioning hole (19).

6. The roller brush with a built-in motor according to claim 4, characterized in that, The second positioning seat (16) is provided with a limiting post (20), and one end of the roller brush (1) is provided with a limiting hole (21), through which the limiting post (20) passes.

7. The roller brush with a built-in motor according to claim 4, characterized in that, A locking buckle (23) is rotatably mounted on the second positioning seat (16) via a torsion spring (22), and the locking buckle (23) is connected to the external cleaning tool body.

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