CN-224233478-U - Driving device and electric toothbrush

CN224233478UCN 224233478 UCN224233478 UCN 224233478UCN-224233478-U

Abstract

The embodiment of the utility model relates to the technical field of electric appliances and discloses a driving device and an electric toothbrush, wherein the driving device comprises a motor and an air cylinder, the motor comprises a shell and a rotating shaft, the two ends of the rotating shaft extend out of the shell, the motor drives the rotating shaft to reciprocate around the axis of the motor in a working state, the air cylinder comprises at least one cylinder body, an air inlet one-way valve and an air outlet one-way valve, the cylinder body is provided with a moving end, an air inlet and an air outlet, the air inlet one-way valve is arranged at the air inlet, the air outlet one-way valve is arranged at the air outlet, one end of the rotating shaft is connected with the moving end through a connecting component in a driving mode, the rotating shaft drives the moving end to reciprocate to change the volume of a cavity in the cylinder body, when the volume of the cavity in the cylinder body is increased, the air inlet one-way valve is opened to suck air from the air inlet, and when the volume of the cavity in the cylinder body is reduced, the air outlet one-way valve is opened to discharge air from the air outlet. Through the mode, the driving device provided by the embodiment of the utility model can drive the rotating shaft and the air cylinder simultaneously by only one motor, and is smaller in size and weight.

Inventors

LV QUAN
YANG GUANG
YUE XIAOFENG
GUAN FASHUO

Assignees

深圳市好奇探索科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250515

Claims (10)

1. The driving device is characterized by comprising a motor and a cylinder; the motor comprises a shell and a rotating shaft with two ends extending out of the shell, and the motor drives the rotating shaft to reciprocally rotate around the axis of the rotating shaft in a working state; The cylinder comprises at least one cylinder body, an air inlet one-way valve and an air outlet one-way valve, the cylinder body is provided with a moving end, an air inlet and an air outlet, the air inlet one-way valve is arranged at the air inlet, and the air outlet one-way valve is arranged at the air outlet; one end of the rotating shaft is in driving connection with the moving end through a connecting component, the rotating shaft drives the moving end to reciprocate so as to change the volume of a cavity in the cylinder body, when the volume of the cavity in the cylinder body is increased, the air inlet one-way valve is opened so as to suck air from the air inlet, and when the volume of the cavity in the cylinder body is decreased, the air outlet one-way valve is opened so as to discharge air from the air outlet.
2. The driving device according to claim 1, wherein, The connecting assembly comprises a swinging shaft and a support, wherein two ends of the swinging shaft are respectively connected with one end of the rotating shaft and one end of the support, and the other end of the support is connected with the moving end.
3. The driving device according to claim 2, wherein, The support is rotationally connected with an external part through a rotating shaft, a track groove is formed in the support, the track groove is an arc-shaped groove, one end of the swinging shaft penetrates through the track groove, one end of the swinging shaft is driven by the rotating shaft to swing back and forth in the track groove, and the support is driven to swing back and forth around the rotating shaft; Two ends of the support extend outwards to form two connecting parts, and the two connecting parts are respectively positioned at two ends of the track groove; The air cylinders comprise two moving ends of the two air cylinders are respectively connected with the two connecting parts of the bracket in one-to-one correspondence.
4. A driving device according to claim 3, wherein, The two brackets are respectively arranged at two ends of the swinging shaft in a one-to-one correspondence manner; the air cylinders comprise four air cylinders, wherein the moving ends of two air cylinders are respectively connected with the two connecting parts of one bracket in a one-to-one correspondence manner, and the moving ends of the other two air cylinders are respectively connected with the two connecting parts of the other bracket in a one-to-one correspondence manner.
5. A driving device according to claim 3, wherein, The cylinder body comprises a body, one end of the body is the moving end, and the body is made of flexible materials.
6. The driving device according to claim 5, wherein, The cylinder body further comprises a bottom wall, the bottom wall is connected with the other end of the body, the cavity is formed between the bottom wall and the body, the air inlet and the air outlet are formed in the bottom wall, and the bottom walls of the two cylinders are integrally formed; The driving device further comprises an air cavity member, one side of the air cavity member is provided with an air inlet groove and an air outlet groove, the bottom wall is clamped between the body and the air cavity member, an air inlet cavity is formed between the air inlet groove and the bottom wall, an air outlet cavity is formed between the air outlet groove and the bottom wall, the air inlet cavity is isolated from the air outlet cavity, and the air inlet cavity and the air outlet cavity are communicated with the outside; The corresponding air inlet of any air cylinder is communicated with the air inlet cavity when the air is sucked, and the corresponding air outlet of any air cylinder is communicated with the air outlet cavity when the air is discharged.
7. The driving device according to claim 1, wherein, The rotating shaft is internally provided with a channel, the channel penetrates through the rotating shaft along the axis of the rotating shaft, and the air outlet is communicated with one end of the channel, so that the exhausted air is exhausted from the other end of the channel.
8. The driving device according to claim 7, wherein, The air inlet of the air cylinder comprises at least one air inlet, and the total area of the air inlet of the air cylinder is larger than the area of the air outlet of the air cylinder.
9. An electric toothbrush, characterized in that the electric toothbrush comprises a handle, a brush head and a driving device according to any one of claims 1-8, the driving device is assembled on the handle, the other end of the rotating shaft extends out of the handle and is in transmission connection with the brush head, an air outlet is arranged on the surface of one side of the brush head, provided with bristles, and the air outlet is communicated with the air outlet.
10. The electric toothbrush according to claim 9, wherein an air inlet hole is formed in one end of the handle, and the air inlet hole is communicated with the air inlet hole and the outside when the air cylinder sucks air.

Description

Driving device and electric toothbrush Technical Field The embodiment of the utility model relates to the technical field of electric appliances, in particular to a driving device and an electric toothbrush. Background The air pump is a device for exhausting or adding air from a closed space through mechanical movement, and has the core function of generating air pressure through compressed air so as to realize air conveying or pressure regulation. An air pump is arranged in the existing bubble toothbrush to generate bubbles in the toothbrush head, and residues in tooth gaps are taken away by impact force generated by bubble breakage. The air pump needs to be driven by a single motor, and the bubble toothbrush also needs to be provided with another motor for driving the toothbrush head to swing back and forth, so that teeth are cleaned, and therefore, two motors are needed to be arranged in the bubble toothbrush for driving respectively, and the weight and the volume of a product are large. Disclosure of utility model In view of the foregoing, embodiments of the present utility model provide a driving device and an electric toothbrush, which are used for solving at least one technical problem described above. According to an aspect of an embodiment of the present utility model, there is provided a driving device including a motor and a cylinder; the motor comprises a shell and a rotating shaft with two ends extending out of the shell, and the motor drives the rotating shaft to reciprocally rotate around the axis of the rotating shaft in a working state; The cylinder comprises at least one cylinder body, an air inlet one-way valve and an air outlet one-way valve, the cylinder body is provided with a moving end, an air inlet and an air outlet, the air inlet one-way valve is arranged at the air inlet, and the air outlet one-way valve is arranged at the air outlet; one end of the rotating shaft is in driving connection with the moving end through a connecting component, the rotating shaft drives the moving end to reciprocate so as to change the volume of a cavity in the cylinder body, when the volume of the cavity in the cylinder body is increased, the air inlet one-way valve is opened so as to suck air from the air inlet, and when the volume of the cavity in the cylinder body is decreased, the air outlet one-way valve is opened so as to discharge air from the air outlet. In an optional mode, the connecting component comprises a swinging shaft and a support, wherein two ends of the swinging shaft are respectively connected with one end of the rotating shaft and one end of the support, and the other end of the support is connected with the moving end. In an optional mode, the support is rotatably connected to an external component through a rotating shaft, a track groove is formed in the support, the track groove is an arc groove, one end of the swinging shaft penetrates through the track groove, and one end of the swinging shaft swings back and forth in the track groove under the driving of the rotating shaft and drives the support to swing back and forth around the rotating shaft; Two ends of the support extend outwards to form two connecting parts, and the two connecting parts are respectively positioned at two ends of the track groove; The air cylinders comprise two moving ends of the two air cylinders are respectively connected with the two connecting parts of the bracket in one-to-one correspondence. In an optional manner, the two brackets comprise two brackets, the swinging shaft penetrates through the rotating shaft, two ends of the swinging shaft extend out of the rotating shaft, and the two brackets are respectively arranged at two ends of the swinging shaft in a one-to-one correspondence manner; the air cylinders comprise four air cylinders, wherein the moving ends of two air cylinders are respectively connected with the two connecting parts of one bracket in a one-to-one correspondence manner, and the moving ends of the other two air cylinders are respectively connected with the two connecting parts of the other bracket in a one-to-one correspondence manner. In an alternative mode, the cylinder body comprises a body, one end of the body is the moving end, and the body is made of flexible materials. In an optional manner, the cylinder body further comprises a bottom wall, the bottom wall is connected with the other end of the body, the cavity is formed between the bottom wall and the body, the air inlet and the air outlet are arranged on the bottom wall, and the bottom walls of the two cylinders are integrally formed; The driving device further comprises an air cavity member, one side of the air cavity member is provided with an air inlet groove and an air outlet groove, the bottom wall is clamped between the body and the air cavity member, an air inlet cavity is formed between the air inlet groove and the bottom wall, an air outlet cavity is formed between the air outlet groove and the bottom wall, t