An electric cleaning brush

Abstract

The utility model relates to an electric cleaning brush, including motor and mutually concentric setting outer brush head and inner brush head, motor drive connection has drive shaft, drive shaft fixed connection has first transmission part, and the first transmission part is equipped with first connecting mechanism for making both along the circumference synchronous rotation between inner brush head, the outside of drive shaft is equipped with second transmission part, and the second transmission part is equipped with second connecting mechanism for making both along the circumference synchronous rotation between outer brush head, and drive shaft and second transmission part are equipped with transmission mechanism, and drive shaft positive rotation can drive first transmission part and inner brush head positive rotation, and drive shaft positive rotation can drive second transmission part and I love brush head reverse rotation through transmission mechanism, and outer brush head and inner brush head cooperation can certain degree each other offset centrifugal force, and the user can more easily overcome centrifugal force that outer brush head and inner brush head produced, more accurately control the cleaning position of outer brush head and inner brush head, and the user operation is more labor saving.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, specifically to an electric cleaning brush. Background Technology

[0002] Electric cleaning brushes typically have only a single brush head, which rotates under the drive of a motor to complete the cleaning action. However, the brush head generates centrifugal force during rotation, making it difficult for users to control. In other words, the brush head tends to automatically deviate in the direction of rotation, increasing the difficulty of operation for users.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an electric cleaning brush. Since the outer brush head and the inner brush head rotate in opposite directions, they can cancel each other out to a certain extent. Users can more easily overcome the centrifugal force generated by the outer brush head and the inner brush head, control the cleaning position of the outer brush head and the inner brush head more accurately, and make the operation of the user less strenuous.

[0005] The purpose of this utility model is achieved as follows:

[0006] An electric cleaning brush includes a motor and an outer brush head and an inner brush head arranged concentrically. The motor is driven by a drive shaft, and the drive shaft is fixedly connected to a first transmission component. A first connecting mechanism is provided between the first transmission component and the inner brush head to enable the two to rotate synchronously in the circumferential direction. A second transmission component is provided on the outside of the drive shaft, and a second connecting mechanism is provided between the second transmission component and the outer brush head to enable the two to rotate synchronously in the circumferential direction. A transmission mechanism is provided between the drive shaft and the second transmission component. The forward rotation of the drive shaft can drive the first transmission component and the inner brush head to rotate in the forward direction, and the forward rotation of the drive shaft can drive the second transmission component and the inner brush head to rotate in the opposite direction through the transmission mechanism.

[0007] As a specific embodiment, the transmission mechanism includes a fixed frame, a main gear, and several driven gears distributed circumferentially along the main gear. The driven gears are fixed relative to each other on the fixed frame in the circumferential direction and can rotate relative to the fixed frame. The main gear is fixedly connected to the outside of the drive shaft. The main gear meshes with each driven gear to make the driven gear rotate in the opposite direction to the main gear. The inner side of the second transmission member is provided with a toothed ring, which meshes with each driven gear to make the toothed ring rotate in the same direction as the driven gear.

[0008] As a specific embodiment, the first connecting mechanism includes a first outer connecting ring and a first inner connecting ring respectively disposed on the inner brush head and the first transmission member. The first outer connecting ring and the first inner connecting ring are polygonal shapes that correspond to each other. The first outer connecting ring and / or the first inner connecting ring can be elastically reset. The first inner connecting ring is provided with a first protrusion, and the first outer connecting ring is provided with a first groove corresponding to the first protrusion. The first protrusion and the first groove are connected and cooperated with each other by elastic force to form a first anti-disengagement structure for limiting the axial relative position between the first outer connecting ring and the first inner connecting ring.

[0009] As a specific embodiment, the second connecting mechanism includes a second outer connecting ring and a second inner connecting ring respectively disposed on the outer brush head and the second transmission component. The second outer connecting ring and the second inner connecting ring are polygonal shapes that correspond to each other. The second outer connecting ring and / or the second inner connecting ring can be elastically reset. The second inner connecting ring is provided with a second protrusion, and the second outer connecting ring is provided with a second groove corresponding to the second protrusion. The second protrusion and the second groove are connected and cooperated with each other by elastic force to form a second anti-disengagement structure for limiting the axial relative position between the second outer connecting ring and the second inner connecting ring.

[0010] As a specific solution, a water baffle is provided at the position above the drive shaft corresponding to the first transmission component. The bottom of the water baffle is provided with a downwardly extending rim. A waterproof groove corresponding to the rim is provided on the first transmission component, and the rim and the waterproof groove are inserted into each other.

[0011] As a specific embodiment, the upper side of the second transmission component is provided with a hollow cavity, and the first transmission component is located at the center of the hollow cavity.

[0012] As a specific embodiment, the second transmission component is provided with a connecting plate, and a concentric bearing is provided between the connecting plate and the drive shaft.

[0013] As a specific solution, a reduction gear mechanism is provided between the motor and the drive shaft.

[0014] As a specific embodiment, the reduction gear mechanism includes a reduction gear disk, several primary reduction gears and several secondary reduction gears. A shaft disc is provided on the lower side of the drive shaft, and a primary output gear is provided on the output shaft of the motor. The primary reduction gears are distributed circumferentially on the outside of the primary output gears and mesh with the primary output gears respectively. Each primary reduction gear is connected and engaged with the reduction gear disk. The primary reduction gears revolve around the primary output gears and drive the reduction gear disk to rotate.

[0015] The center of the reduction gear disk is equipped with a secondary output gear. The secondary reduction gears are distributed circumferentially on the outside of the secondary output gear and mesh with the secondary output gear respectively. Each secondary reduction gear is connected and engaged with the shaft disc. The secondary reduction gear revolves around the secondary output gear and drives the shaft disc and drive shaft to rotate.

[0016] The beneficial effects of this utility model are:

[0017] The outer and inner brush heads work together to counteract centrifugal force to some extent, making it easier for users to overcome the centrifugal force generated by the outer and inner brush heads, and to more accurately control the cleaning position of the outer and inner brush heads, making the operation more effortless. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of an embodiment of the present utility model. Figure 1 .

[0020] Figure 3 This is an exploded view of an embodiment of the present utility model. Figure 2 .

[0021] Figure 4 This is an enlarged view of embodiment A of the present invention.

[0022] Figure 5 This is an enlarged view of embodiment B of the present invention. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See Figures 1-5 This electric cleaning brush includes a motor 1 and an outer brush head 2 and an inner brush head 3 arranged concentrically. The motor 1 is driven by a drive shaft 4, and the drive shaft 4 is fixedly connected to a first transmission component 51. A first connecting mechanism is provided between the first transmission component 51 and the inner brush head 3 to enable the two to rotate synchronously in the circumferential direction. A second transmission component 52 is provided on the outside of the drive shaft 4. A second connecting mechanism is provided between the second transmission component 52 and the outer brush head 2 to enable the two to rotate synchronously in the circumferential direction. A transmission mechanism is provided between the drive shaft 4 and the second transmission component 52. The forward rotation of the drive shaft 4 can drive the first transmission component 51 and the inner brush head 3 to rotate in the forward direction. The forward rotation of the drive shaft 4 can drive the second transmission component 52 and the inner brush head to rotate in the opposite direction through the transmission mechanism. The outer brush head 2 and the inner brush head 3 can cooperate to a certain extent to cancel each other's centrifugal force. Users can more easily overcome the centrifugal force generated by the outer brush head 2 and the inner brush head 3, and more accurately control the cleaning position of the outer brush head 2 and the inner brush head 3, making the operation more effortless for users.

[0025] Furthermore, the transmission mechanism includes a fixed frame 73, a main gear 71, and several driven gears 72 distributed circumferentially along the main gear 71. The driven gears 72 are circumferentially fixed to the fixed frame 73 and can rotate relative to the fixed frame 73. The main gear 71 is fixedly connected to the outside of the drive shaft 4. The main gear 71 meshes with each driven gear 72, causing the driven gear 72 to rotate in the opposite direction to the main gear 71. The inner side of the second transmission member 52 is provided with a toothed ring 524. The toothed ring 524 meshes with each driven gear 72, causing the toothed ring 524 to rotate in the same direction as the driven gear 72. The concentricity of the outer brush head 2 and the inner brush head 3 is determined by the drive shaft 4. No additional concentric components are required between them, which simplifies the overall layout and structure and reduces material costs.

[0026] When the driving gear 71 rotates, the driven gear 72, under the action of the fixed frame 73, will only remain stationary in the circumferential direction and rotate in the opposite direction to the driving gear 71. The cooperation between the driven gear 72 and the gear ring 524 can make the first transmission member 52 rotate in the opposite direction to the driving gear 71.

[0027] Furthermore, the first connecting mechanism includes a first outer connecting ring 31 and a first inner connecting ring 511 respectively disposed on the inner brush head 3 and the first transmission member 51. The first outer connecting ring 31 and the first inner connecting ring 511 are polygonal shapes that correspond to each other. The first outer connecting ring 31 and / or the first inner connecting ring 511 can be elastically reset. The first inner connecting ring 511 is provided with a first protrusion 5111, and the first outer connecting ring 31 is provided with a first groove 311 corresponding to the first protrusion 5111. The first protrusion 5111 and the first groove 311 are connected and cooperated with each other by elastic force to form a first anti-disengagement structure for limiting the axial relative position between the first outer connecting ring 31 and the first inner connecting ring 511, so that the inner brush head 3 and the first transmission member 51 can be quickly disassembled and assembled, making it convenient to replace the inner brush head 3.

[0028] Furthermore, the second connecting mechanism includes a second outer connecting ring 21 and a second inner connecting ring 521 respectively disposed on the outer brush head 2 and the second transmission member 52. The second outer connecting ring 21 and the second inner connecting ring 521 are polygonal shapes corresponding to each other. The second outer connecting ring 21 and / or the second inner connecting ring 521 can be elastically reset. The second inner connecting ring 521 is provided with a second protrusion 5211, and the second outer connecting ring 21 is provided with a second groove 211 corresponding to the second protrusion 5211. The second protrusion 5211 and the second groove 211 are connected and cooperated with each other by elastic force to form a second anti-detachment structure for limiting the axial relative position between the second outer connecting ring 21 and the second inner connecting ring 521, so that the outer brush head 2 and the second transmission member 52 can be quickly disassembled and assembled, making it convenient to replace the outer brush head 2.

[0029] Furthermore, a water-blocking cover 512 is provided on the first transmission component 51 above the drive shaft 4. The bottom of the water-blocking cover 512 is provided with a downwardly extending rim 5121. The first transmission component 51 is provided with a waterproof groove 513 corresponding to the rim 5121. The rim 5121 and the waterproof groove 513 are interlocked to prevent water from seeping inward from the drive shaft 4. Moreover, since the concentricity of the outer brush head 2 and the inner brush head 3 is determined by the drive shaft 4, the two can share the same water-blocking cover 512 as a waterproof structure, reducing product costs.

[0030] Furthermore, the upper side of the second transmission component 52 is provided with a hollow cavity 522, and the first transmission component 51 is located at the center of the hollow cavity 522, making the layout between the second transmission component 52 and the first transmission component 51 more compact and reasonable, and making better use of the space of the equipment.

[0031] Furthermore, the second transmission component 52 is provided with a connecting plate 523, and a concentric bearing 5231 is provided between the connecting plate 523 and the drive shaft 4 to further improve the stability and concentricity of the second transmission component 52 during movement.

[0032] Furthermore, a reduction gear mechanism is provided between the motor 1 and the drive shaft 4, so that the rotational speed of the drive shaft 4 can be reduced to a preset reasonable speed.

[0033] Furthermore, the reduction gear mechanism includes a reduction gear disk 6, several first-stage reduction gears 61 and several second-stage reduction gears 62. A shaft turntable 41 is provided on the lower side of the drive shaft 4. A first-stage output gear 11 is provided on the output shaft of the motor 1. The first-stage reduction gears 61 are distributed circumferentially on the outside of the first-stage output gears 11 and mesh with the first-stage output gears 11 respectively. Each first-stage reduction gear 61 is connected and engaged with the reduction gear disk 6. The first-stage reduction gear 61 revolves around the first-stage output gear 11 and drives the reduction gear disk 6 to rotate.

[0034] The center of the reduction gear disk 6 is provided with a secondary output gear 63. The secondary reduction gears 62 are distributed circumferentially on the outside of the secondary output gear 63 and mesh with the secondary output gear 63 respectively. Each secondary reduction gear 62 is connected and engaged with the shaft disk 41. The secondary reduction gear 62 revolves around the secondary output gear 63 and drives the shaft disk 41 and the drive shaft 4 to rotate.

[0035] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. An electric cleaning brush, characterized in that, The device includes a motor (1) and an outer brush head (2) and an inner brush head (3) arranged concentrically. The motor (1) is connected to a drive shaft (4). The drive shaft (4) is fixedly connected to a first transmission member (51). A first connecting mechanism is provided between the first transmission member (51) and the inner brush head (3) to enable the two to rotate synchronously in the circumferential direction. A second transmission member (52) is provided on the outside of the drive shaft (4). A second connecting mechanism is provided between the second transmission member (52) and the outer brush head (2) to enable the two to rotate synchronously in the circumferential direction. A transmission mechanism is provided between the drive shaft (4) and the second transmission member (52). The forward rotation of the drive shaft (4) can drive the first transmission member (51) and the inner brush head (3) to rotate in the forward direction. The forward rotation of the drive shaft (4) can drive the second transmission member (52) and the inner brush head to rotate in the opposite direction through the transmission mechanism.

2. The electric cleaning brush according to claim 1, characterized in that: The transmission mechanism includes a fixed frame (73), a main gear (71), and several driven gears (72) distributed circumferentially along the main gear (71). The driven gears (72) are fixed relative to the fixed frame (73) in the circumferential direction and can rotate relative to the fixed frame (73). The main gear (71) is fixedly connected to the outside of the drive shaft (4). The main gear (71) meshes with each driven gear (72) to make the driven gear (72) rotate in opposite directions to the main gear (71). The inner side of the second transmission member (52) is provided with a toothed ring (524). The toothed ring (524) meshes with each driven gear (72) to make the toothed ring (524) rotate in the same direction as the driven gear (72).

3. The electric cleaning brush according to claim 1, characterized in that: The first connecting mechanism includes a first outer connecting ring (31) and a first inner connecting ring (511) respectively disposed on the inner brush head (3) and the first transmission member (51). The first outer connecting ring (31) and the first inner connecting ring (511) are polygonal shapes that correspond to each other. The first outer connecting ring (31) and / or the first inner connecting ring (511) can be elastically reset. The first inner connecting ring (511) is provided with a first protrusion (5111). The first outer connecting ring (31) is provided with a first groove (311) corresponding to the first protrusion (5111). The first protrusion (5111) and the first groove (311) are connected and cooperated with each other by elastic force to form a first anti-detachment structure for limiting the axial relative position between the first outer connecting ring (31) and the first inner connecting ring (511).

4. The electric cleaning brush according to claim 1, characterized in that: The second connecting mechanism includes a second outer connecting ring (21) and a second inner connecting ring (521) respectively disposed on the outer brush head (2) and the second transmission member (52). The second outer connecting ring (21) and the second inner connecting ring (521) are polygonal shapes corresponding to each other. The second outer connecting ring (21) and / or the second inner connecting ring (521) can be elastically reset. The second inner connecting ring (521) is provided with a second protrusion (5211). The second outer connecting ring (21) is provided with a second groove (211) corresponding to the second protrusion (5211). The second protrusion (5211) and the second groove (211) are connected and cooperated with each other by elastic force to form a second anti-detachment structure for limiting the axial relative position between the second outer connecting ring (21) and the second inner connecting ring (521).

5. The electric cleaning brush according to claim 1, characterized in that: The first transmission component (51) is provided with a water baffle (512) above the drive shaft (4). The bottom of the water baffle (512) is provided with a downwardly extending rim (5121). The first transmission component (51) is provided with a waterproof groove (513) corresponding to the rim (5121). The rim (5121) and the waterproof groove (513) are inserted into each other.

6. The electric cleaning brush according to claim 1, characterized in that: The upper side of the second transmission member (52) is provided with a hollow cavity (522), and the first transmission member (51) is located at the center of the hollow cavity (522).

7. The electric cleaning brush according to claim 1, characterized in that: The second transmission component (52) is provided with a connecting plate (523), and a concentric bearing (5231) is provided between the connecting plate (523) and the drive shaft (4).

8. The electric cleaning brush according to any one of claims 1-7, characterized in that: A reduction gear mechanism is provided between the motor (1) and the drive shaft (4).

9. The electric cleaning brush according to claim 8, characterized in that: The reduction gear mechanism includes a reduction gear disk (6), several first-stage reduction gears (61) and several second-stage reduction gears (62). The drive shaft (4) is provided with a shaft turntable (41) on its lower side. The output shaft of the motor (1) is provided with a first-stage output gear (11). The first-stage reduction gears (61) are distributed circumferentially on the outside of the first-stage output gears (11) and mesh with the first-stage output gears (11) respectively. Each first-stage reduction gear (61) is connected and engaged with the reduction gear disk (6). The first-stage reduction gears (61) revolve around the first-stage output gears (11) and drive the reduction gear disk (6) to rotate. The center of the reduction gear disk (6) is provided with a secondary output gear (63). The secondary reduction gears (62) are distributed circumferentially on the outside of the secondary output gears (63) and mesh with the secondary output gears (63) respectively. Each secondary reduction gear (62) is connected and engaged with the shaft disc (41). The secondary reduction gears (62) revolve around the secondary output gears (63) and drive the shaft disc (41) and the drive shaft (4) to rotate.

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