CN213525611U

CN213525611U - Electric toothbrush with pressure induction switch

Info

Publication number: CN213525611U
Application number: CN202021477410.2U
Authority: CN
Inventors: 杨坤
Original assignee: Dongguan Yinfan Life Technology Co ltd
Current assignee: Dongguan Yinfan Life Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-06-25
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a take forced induction switch's electric toothbrush, it includes: the brush holder, set up in the linking arm of brush holder upper end, install the brush head on the linking arm, install in the drive arrangement of linking arm upper end and install the circuit board in the brush holder, be provided with the pressure sensor who is used for starting and adjusting and close drive arrangement on the circuit board, be provided with the switch portion that corresponds pressure sensor on the brush holder, the shaping has the annular groove that is located switch portion periphery and is used for making switch portion elastic on the brush holder outer wall. The utility model discloses in through a shaping annular groove on the outer wall of brush holder, make to form switch portion that can elastic deformation on the brush holder to correspond the department at circuit board and switch portion and set up the pressure sensor that can perception pressure variation, produce small deformation by switch portion and give pressure sensor through the soft rubber spare pressure conduction, realize the switch action, this simple structure is reliable, and manufacturing and processing is convenient, and the leakproofness of button department is very good, can play fine water-proof effects.

Description

Electric toothbrush with pressure induction switch

The technical field is as follows:

the utility model relates to the field of electric toothbrushes, in particular to an electric toothbrush with a pressure induction switch.

Background art:

the electric toothbrush mainly makes the brush head generate high-frequency vibration through the quick rotation or vibration of the electric motor, instantly decomposes the toothpaste into fine foam, and deeply cleans teeth gaps. Since the electric toothbrush needs to be frequently washed with water during use, the waterproof requirement for the electric toothbrush is high.

At present, the conventional method on the market is to beer hard rubber firstly and then to beer soft rubber, which has the risk of poor sealing, and the process is complex and the reject ratio is high.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

an object of the utility model is to overcome the not enough of prior art, provide a take forced induction switch's electric toothbrush.

In order to solve the technical problem, the utility model discloses a following technical scheme: this take electric toothbrush of pressure-sensitive switch includes: the brush holder, set up in linking arm of brush holder upper end, with dismantled and assembled mode install in brush head on the linking arm, install in linking arm upper end is used for the drive brush head drive arrangement of work and install in the brush holder and be used for control drive arrangement's circuit board, be provided with on the circuit board and be used for starting and adjusting and closing drive arrangement's pressure sensor, be provided with on the brush holder and correspond pressure sensor is used for triggering pressure sensor's switch portion, the shaping has on the brush holder outer wall and is located switch portion periphery is used for making switch portion has elastic annular groove.

Further, in the above technical solution, a soft rubber for transmitting pressure is provided between the switch portion and the pressure sensor.

Furthermore, in the above technical solution, the driving device is mounted at the upper end of the connecting arm and extends into the inner cavity of the brush head in an interference fit manner, a dispensing manner or a screw-thread fit manner.

Furthermore, in the above technical solution, the driving device includes a motor connected and fixed with the connecting arm in an interference fit manner, a glue dispensing manner, or a thread fit manner, an impact block mounted on the motor and extending into the inner cavity, and a steel cover covering the impact block and generating vibration, and a wire connected with the circuit board is provided at the lower end of the motor.

Further, in the above technical solution, the connecting arm is provided with an opening through which the wire rod passes.

Furthermore, in the above technical scheme, the soft rubber piece is installed between the switch part and the pressure sensor in an interference fit manner, and a glue used for being adhered to the inner wall of the switch part is arranged on one side of the soft rubber piece.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses in through a shaping annular groove on the outer wall of brush holder, make to form on the brush holder switch portion that can elastic deformation, and correspond the department setting pressure sensor that can perception pressure variation at circuit board and switch portion, and set up a flexible glue spare between pressure sensor and switch portion and come transmission pressure, thereby make when pressing switch portion, produce small deformation and give pressure sensor through middle flexible glue spare by switch portion, realize the control to the circuit board, and then realize switching action and regulation action, this kind of simple structure is reliable, the manufacturing and processing is convenient, the leakproofness of button department is very good, can play fine water-proof effects.

Description of the drawings:

fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of section A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is an enlarged view of a portion of FIG. 2 at C;

FIG. 5 is an enlarged view of a portion of FIG. 2 at D;

FIG. 6 is a cross-sectional view of the linking arm in a first embodiment;

fig. 7 is a sectional view of the connecting arm in the second embodiment.

Description of reference numerals:

1 brush handle 11 switch part 12 ring groove

13 casing 14 bottom cover 15 insulating seat

16 conductive terminals 17 electric spring 18 battery

19 waterproof sealing ring 2 brush head 21 inner cavity

22 bristles 3 driving device 31 wire

4 circuit board 41 pressure sensor 5 soft rubber piece

6 connecting arm 61 opening 62 convex ring

63 the projection 7 has a sealing sleeve

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Referring to fig. 1 to 7, there is shown an electric toothbrush with a pressure sensing switch, which includes: brush holder 1, set up in linking arm 6 of brush holder 1 upper end, install in with dismantled and assembled mode in brush head 2 on linking arm 6, install in linking arm 6 upper end is used for the drive brush head 2 drive of work drive arrangement 3 and install in brush holder 1 and be used for controlling drive arrangement 3's circuit board 4, be provided with on circuit board 4 and be used for starting and adjusting and close drive arrangement 3's pressure sensor 41, be provided with on brush holder 1 corresponding pressure sensor 41 and be used for triggering pressure sensor 41's switch portion 11, the shaping has to be located on the outer wall of brush holder 1 switch portion 11 periphery and be used for making switch portion 11 have elastic annular groove 12. Set up an annular groove 12 through adopting integrated into one piece on the outer wall of brush holder 1, make to form switch portion 11 that can elasticity press on the outer wall of brush holder 1, and set up pressure sensor 41 in the position that circuit board 4 and switch portion 11 correspond, only need press switch portion 11 on the brush holder 1 when using, thereby it produces the small deformation and triggers pressure sensor 41 and realize the switching action, and the accessible is long pressed or short according to the instruction that comes control circuit board 4 to send out the difference and make drive arrangement 3 produce different rotational speeds, this kind of simple structure is reliable, the manufacturing and processing is convenient, the leakproofness of switch portion 11 is very good, can play fine water-proof effects.

A soft rubber piece 5 for transmitting pressure is arranged between the switch part 11 and the pressure sensor 41. The soft rubber part 5 is installed between the switch part 11 and the pressure sensor 41 in an interference fit manner, and is provided with viscose glue used for being bonded with the inner wall of the switch part 11 on one side. The soft rubber piece 5 is elastic silica gel, and the pressing force of the switch part 11 can be amplified through the soft rubber piece 5, so that the switch part 11 only needs to generate small deformation to realize the perception of the pressure sensor 41 when in use, the strength of the switch part 11 can be kept, the service life of the brush handle 1 is prolonged, and accidental touch can be prevented.

The switch needs to be replaced by the traditional brush handle 1 for a plurality of times

The driving device 3 is arranged at the upper end of the connecting arm 6 in an interference fit mode, a dispensing mode or a thread fit mode and extends into the inner cavity 21 of the brush head 2. Because drive arrangement 3 is located the cavity 21 of brush head 2 after the installation to make the vibration source can be closer to some from brush head 2, the amplitude that brush head 2 received is stronger, and the vibrations that drive arrangement 3 produced can directly transmit for brush head 2, in order to reach the effect that reduces vibrations transmission loss.

Drive arrangement 3 including with linking arm 6 is connected fixed motor through interference fit or some glue or screw-thread fit's mode, install in on the motor and extend to striking piece and cover in the inner chamber 21 are located strike the steel casing that the piece is gone up and produce vibrations, the motor lower extreme be provided with wire rod 31 that circuit board 4 is connected. The motor is a hollow cup vibration motor.

A convex part 63 which is clamped with the brush head 2 is formed at the lower part of the outer wall of the connecting arm 6. Brush head 2 elasticity block in protruding portion 63, through with brush head 2 adopt with protruding portion 63 elasticity block the mode install in on the linking arm 6, can realize the quick assembly disassembly of brush head 2, quick assembly when convenient production to and user quick replacement brush head 2.

The connecting arm 6 is provided with an opening 61 for the wire 31 to pass through. In one embodiment the location of the opening 61 is in the middle of the connecting arm 6 and extends vertically through the connecting arm 6 as shown in fig. 6, and in another embodiment the location of the opening 61 is anywhere along the middle side of the connecting arm 6 and extends through the connecting arm 6 as shown in fig. 7. The connecting arm 6 is made of an insulating material. The lower end of the connecting arm 6 is mounted in the brush holder 1, a sealing sleeve 7 is arranged between the lower end of the connecting arm 6 and the brush holder 1, the lower end of the connecting arm 6 is sleeved with the sealing sleeve 7, and the sealing sleeve 7 is made of elastic materials. And an annular clamping groove for mounting the sealing sleeve 7 is formed at the lower end of the connecting arm 6. The shape of the opening 61 may be circular, rectangular, fan-shaped, polygonal, etc.

The brush holder 1 further comprises a shell 13, a battery 18 arranged in the shell 13, a circuit board 4 arranged in the shell 13 and electrically connected with the battery 18, a bottom cover 14 mounted at the lower end of the shell 13, an insulating base 15 mounted at the upper end of the bottom cover 14, a conductive terminal 16 arranged in the bottom cover 14 and capable of sliding, and an electric spring 17 arranged at the lower end of the insulating base 15 and electrically connected with the conductive terminal 16, wherein the other end of the electric spring 17 is electrically connected with the circuit board 4, and a waterproof sealing ring 19 is arranged between the bottom cover 14 and the shell 13. A convex ring 62 clamped with the inner wall of the shell 13 is formed at the lower end of the connecting arm 6, and the diameter of an opening at the upper end of the shell 13 is smaller than the outer diameter of the convex ring 62.

A plurality of bristles 22 are vertically arranged at one end of the brush head 2 far away from the connecting arm 6. In use, the teeth are cleaned by the bristles 22 and are vibrated by the power provided by the motor.

To sum up, the utility model discloses during the use, only need press switch portion 11 on the brush holder 1, make switch portion 11 produce small deformation to conduct pressure to the pressure sensor 41 on circuit board 4 through soft rubber spare 5, realize the switch action by the pressure variation control circuit board 41 of pressure sensor 41 perception, and can press the rotational speed gear who adjusts drive arrangement 3 with the weak point according to the length. The structure is simple and reliable, the sealing effect at the key position is very good, and a good waterproof effect can be achieved.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. An electric toothbrush with a pressure sensitive switch, comprising: a brush handle (1), a connecting arm (6) arranged at the upper end of the brush handle (1), a brush head (2) detachably arranged on the connecting arm (6), a driving device (3) arranged at the upper end of the connecting arm (6) and used for driving the brush head (2) to work, and a circuit board (4) arranged in the brush handle (1) and used for controlling the driving device (3), characterized in that the circuit board (4) is provided with a pressure sensor (41) for starting, adjusting and closing the driving device (3), a switch part (11) which corresponds to the pressure sensor (41) and is used for triggering the pressure sensor (41) is arranged on the brush handle (1), an annular groove (12) which is positioned at the periphery of the switch part (11) and is used for enabling the switch part (11) to have elasticity is formed on the outer wall of the brush handle (1).

2. The electric toothbrush with the pressure sensing switch as claimed in claim 1, wherein: a soft rubber piece (5) used for conducting pressure is arranged between the switch part (11) and the pressure sensor (41).

3. The electric toothbrush with the pressure sensing switch as claimed in claim 1, wherein: the driving device (3) is arranged at the upper end of the connecting arm (6) in an interference fit or dispensing or thread fit mode and extends into the inner cavity (21) of the brush head (2).

4. The electric toothbrush with the pressure sensing switch as claimed in claim 3, wherein: drive arrangement (3) including with linking arm (6) are connected fixed motor, install in through interference fit or some glue or screw-thread fit's mode on the motor and extend to striking piece and cover in inner chamber (21) are located the steel casing that strikes on the piece and produce vibrations, the motor lower extreme be provided with wire rod (31) that circuit board (4) are connected.

5. The electric toothbrush with the pressure sensing switch as claimed in claim 4, wherein: the connecting arm (6) is provided with an opening (61) for the wire (31) to pass through.

6. The electric toothbrush with the pressure sensing switch as claimed in claim 2, wherein: the soft rubber piece (5) is arranged between the switch part (11) and the pressure sensor (41) in an interference fit mode, and viscose glue used for being bonded with the inner wall of the switch part (11) is arranged on one side of the soft rubber piece.