CN213525613U

CN213525613U - Electric toothbrush capable of preventing teeth from being pressed too much

Info

Publication number: CN213525613U
Application number: CN202021511395.9U
Authority: CN
Inventors: 黄志平
Original assignee: Dongguan Yinfan Life Technology Co ltd
Current assignee: Dongguan Yinfan Life Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-06-25
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a prevent too big electric toothbrush of tooth pressurized, it includes: the brush handle, the brush head, the driving device and the circuit board are provided with an anode conductive pin and a cathode conductive pin which are triggered to change the rotating speed of the driving device, the tail part of the driving device is provided with an elastic conduction piece which is in contact conduction with the anode conductive pin and the cathode conductive pin, a reset elastic piece is arranged beside the elastic conduction piece, and two ends of the reset elastic piece are respectively in contact fixation with the circuit board and the driving device. The utility model discloses but with drive arrangement adoption wobbling mode articulated install in the brush holder, set up anodal conductive needle and negative pole conductive needle on the circuit board to drive arrangement's afterbody sets up elasticity conducting sheet, when the brush head receives too big extrusion force, drive arrangement produces the swing, with the anodal conductive needle and the negative pole conductive needle contact on elasticity conducting sheet and the circuit board, with trigger circuit board control change drive arrangement's rotational speed frequency, and then protection tooth and gum do not receive the damage.

Description

Electric toothbrush capable of preventing teeth from being pressed too much

The technical field is as follows:

the utility model relates to the field of electric toothbrushes, in particular to an electric toothbrush which can prevent teeth from being pressed too much.

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. When the user uses the electric toothbrush, the brush head needs to be attached to the surface of teeth, when the user exerts too much force, the excessive pressure and the high-frequency sound wave vibration friction of the brush bristles easily cause tooth damage, and the problems of gingival bleeding, wedge-shaped tooth abrasion and the like which are harmful to health are caused. Especially, in the case of children, it is difficult to grasp the degree of the pressing force between the brush head and the surfaces of the teeth when using the electric toothbrush, and the teeth of children are weak and easily damaged when they develop for a long period of time. Thus, there is a need for a toothbrush that automatically changes or reduces the rotational speed and frequency of vibration to protect the teeth and gums from damage when the head is subjected to excessive pressure.

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

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide an electric toothbrush which can prevent teeth from being pressed too much.

In order to solve the technical problem, the utility model discloses a following technical scheme: the electric toothbrush for preventing the excessive compression of teeth comprises: the brush holder, install in with dismantled and assembled mode brush head on the brush holder, install in a wobbling mode in the brush holder and be used for driving brush head work drive arrangement and install in the brush holder and be used for controlling drive arrangement's circuit board, its characterized in that, be provided with on the circuit board and be used for triggering change drive arrangement rotational speed anodal conducting pin and negative pole conducting pin, drive arrangement's afterbody is provided with anodal conducting pin and the elastic conducting pin contact conduction piece that the negative pole conducting pin contacted and switched on, this elastic conducting piece side is provided with a elastic component that resets, and this elastic component both ends respectively with the circuit board with drive arrangement contact is fixed and will anodal conducting pin with the negative pole conducting pin with elastic conducting piece separates.

Further, in the above technical solution, the positive conductive pin is a conductive pogo pin, which includes a conductive seat, a pogo pin head telescopically mounted on the conductive seat, and a spring mounted between the pogo pin head and the conductive seat, and the conductive seat is fixed on the circuit board; the negative conductive pin and the positive conductive pin have the same structure.

Furthermore, in the above technical scheme, the tail end of the driving device is provided with a mounting seat for mounting the elastic conducting sheet, the mounting seat is a plastic elastic seat, and can deform and deviate to one side of the circuit board to get close after being stressed, and the side is also formed with a mounting groove for mounting the elastic conducting sheet.

Furthermore, in the above technical solution, the elastic restoring element is a conical spring, a positioning column for positioning the spring is formed beside the mounting groove, and the other end of the spring is fixed to the circuit board.

Furthermore, in the above technical solution, a bracket for mounting the driving device is provided in the brush handle, the bracket includes a first bracket and a second bracket hinged to each other, and the driving device is mounted in the first bracket and can drive the first bracket to swing relative to the second bracket; and two ends of the mounting seat are respectively mounted on the driving device and the second support.

Furthermore, in the above technical solution, the circuit board is mounted on one side of the support, a switch button corresponding to the circuit board and used for controlling the driving device to start and close is disposed on the side wall of the brush holder, and a battery used for providing electric energy for the driving device is mounted on the second support.

Further, in the above technical solution, a joint of the first bracket and the second bracket is hinged together by two symmetrical rotating shafts.

Further, in the above technical solution, the first bracket is in a sleeve shape, and the upper end of the driving device is installed in the inner cavity of the first bracket; the second support comprises an upper cover shell and a lower cover shell which are symmetrical, the lower end of the driving device is positioned in the upper cover shell and can swing in the upper cover shell, and the battery is positioned in the lower cover shell.

Furthermore, in the above technical scheme, the upper end of the brush handle is provided with a transmission component which extends into the brush head and is used for driving the brush head to vibrate, the lower end of the transmission component is connected with the driving device, and the upper end of the transmission component extends into the inner cavity of the brush head.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses but with drive arrangement adoption wobbling mode articulated install in the brush holder, set up telescopic anodal conductive needle and negative pole conductive needle on the circuit board, and drive arrangement's afterbody setting can switch on with anodal conductive needle and the elasticity that the contact of negative pole conductive needle switched on, make when the brush head receives too big extrusion force, drive arrangement produces the swing, with the anodal conductive needle and the contact of negative pole conductive needle on elasticity conductive sheet and the circuit board, make anodal conductive needle and the conductive needle of negative pole switch on, change drive arrangement's rotational speed frequency with trigger circuit board control, and then protection tooth and gum do not receive the damage, and the simple structure of anodal conductive needle and negative pole conductive needle and elasticity conductive sheet, the space occupies for a short time, the size of brush holder is not additionally increased.

Description of the drawings:

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

FIG. 2 is an internal structural view of the present invention;

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

fig. 4 is a perspective view of the mounting base of the present invention.

Description of reference numerals:

1 brush holder 11 switch button 12 battery

2 brush head 3 driving device 31 mounting seat

311 mounting groove 312 positioning column 4 circuit board

41 positive electrode conductive pin 42 negative electrode conductive pin 5 elastic conducting sheet

6 reset elastic piece 7 support 71 first support

72 second support 721 Upper casing 722 lower casing

73 rotating shaft 8 transmission assembly

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 4, there is provided an electric toothbrush for preventing excessive compression of teeth, comprising: a brush holder 1, a brush head 2 detachably mounted at the upper end of the brush holder 1, a driving device 3 swingably mounted in the brush holder 1 for driving the brush head 2 to operate, and a circuit board 4 mounted in the brush holder 1 for controlling the driving device 3, it is characterized in that the circuit board 4 is provided with a positive conductive needle 41 and a negative conductive needle 42 which are used for triggering and changing the rotating speed of the driving device 3, the tail part of the driving device 3 is provided with an elastic conducting sheet 5 which is in contact conduction with the positive electrode conducting pin 41 and the negative electrode conducting pin 42, a reset elastic member 6 is disposed beside the elastic conducting sheet 5, and two ends of the reset elastic member 6 are respectively fixed to the circuit board 4 and the driving device 3 in a contact manner and separate the positive conductive pin 41 and the negative conductive pin 42 from the elastic conducting sheet 5.

In the normal use in-process, owing to the effect of the elastic component 6 that resets, anodal conducting pin 41 and the 5 separation noncontacts of relative elasticity conducting sheet of negative pole conducting pin 42 work as behind the drive arrangement 3 pressurized swing, can drive elasticity conducting sheet 5 to circuit board 4 draws close, makes elasticity conducting sheet 5 with anodal conducting pin 41 and the 42 contact of negative pole conducting pin on the circuit board 4, send out the instruction by circuit board 4 this moment and make drive arrangement 3 change rotational speed and frequency, and then reduce the vibration frequency of brush head 2, prevent that brush head 2 high frequency vibrations from haring tooth and gum.

Wherein, drive arrangement 3 produces the swing and makes the required pressure of elasticity conducting sheet 5 and circuit board 4 contact, uses according to different crowds, adopts the elastic component 6 that resets of different elasticity to decide, and the usual divide into: childhood, adult and elderly. The positive conductive needle 41 and the negative conductive needle 42 form a contact switch with the elastic conductive sheet 5, that is, after the elastic conductive sheet 5 contacts the positive conductive needle 41 and the negative conductive needle 42 of the circuit board 4, the positive conductive needle 41 and the negative conductive needle 42 are conducted to trigger the circuit board 4 to trigger an instruction, so that the driving device 3 changes the output rotating speed and frequency, further the vibration intensity of the brush head 2 is reduced, and the effect of protecting teeth and gums is achieved.

The positive conductive pin 41 is a conductive pogo pin, and includes a conductive seat, a pogo pin head telescopically mounted on the conductive seat, and a spring mounted between the pogo pin head and the conductive seat, and the conductive seat is fixed on the circuit board 4; the negative conductive pin 42 has the same structure as the positive conductive pin 41.

The tail end of the driving device 3 is provided with a mounting seat 31 for mounting the elastic conducting sheet 5, the mounting seat 31 is a plastic elastic seat, and can move to one side of the circuit board 4 to be deformed and deviated to be close to the elastic conducting sheet after being stressed, and the elastic conducting sheet 5 is further mounted on the elastic conducting sheet side through a mounting groove 311.

The elastic restoring element 6 is a conical spring, a positioning column 312 for positioning the spring is formed beside the mounting groove 311, and the other end of the spring is fixed with the circuit board 4.

A bracket 7 for mounting the driving device 3 is arranged in the brush handle 1, the bracket 7 comprises a first bracket 71 and a second bracket 72 which are hinged with each other, and the driving device 3 is mounted in the first bracket 71 and can drive the first bracket 71 to swing relative to the second bracket 72; the two ends of the mounting seat 31 are respectively mounted on the driving device 3 and the second bracket 72.

The mounting seat 31 includes a main body 313 and an auxiliary body 314 respectively connected and fixed to the driving device 3 and the second bracket 72, and an elastic connecting arm 315 connecting the main body 313 and the auxiliary body 314, wherein a mounting hole 316 for sleeving and fixing the tail of the driving device 3 is formed on the main body 313, and a boss 317 for inserting and fixing the boss on the second bracket 72 is formed on the auxiliary body 314.

The circuit board 4 is installed on one side of the support 7, a switch button 11 corresponding to the circuit board 4 and used for controlling the driving device 3 to be started and closed is arranged on the side wall of the brush holder 1, and a battery 12 used for providing electric energy for the driving device 3 is installed on the second support 72.

The joint of the first bracket 71 and the second bracket 72 is hinged together by two symmetrical rotating shafts 73.

The first bracket 71 is in a sleeve shape, and the upper end of the driving device 3 is arranged in the inner cavity of the first bracket 71; the second support 72 includes an upper casing 721 and a lower casing 722 which are opposite to each other, the lower end of the driving device 3 is located in the upper casing 721 and can swing in the upper casing 721, and the battery 12 is located in the lower casing 722.

The upper end of the brush handle 1 is provided with a transmission component 8 which extends into the brush head 2 and is used for driving the brush head 2 to vibrate, the lower end of the transmission component 8 is connected with the driving device 3, and the upper end of the transmission component 8 extends into the inner cavity of the brush head 2.

To sum up, when the utility model is used, the switch button 11 is pressed, the driving device 3 is started and drives the brush head 2 to generate high-frequency vibration through the transmission component 8, the brush head 2 cleans teeth under normal pressure, when the extrusion force of the user pressing the brush head 2 against the tooth contact surface is too large, the brush head 2 pushes the driving device 3 to swing around the shaft 73 through the transmission component 8, so that the elastic conducting sheet 5 draws close to the positive conducting pin 41 and the negative conducting pin 42, after the elastic conducting sheet 5 contacts with the positive conducting pin 41 and the negative conducting pin 42 on the circuit board 4, the driving device 3 is triggered to change the rotating speed and the frequency, thereby the vibration of the brush head 2 is reduced, teeth and gum are prevented from being damaged, after the extrusion force of the brush head 2 is reduced by the user, the reset thrust generated by the reset elastic member 6 can push the driving device 3 to swing reversely, so that the positive conducting sheet 5 is separated from the conducting pin 41 and the negative conducting pin 42, at this time, the driving device 3 returns to the original rotation speed and frequency, and since the mounting seat 31 itself is an elastic member, when the driving device 3 swings, the elastic connecting arm 315 deforms, so that the main body 313 swings and deflects toward the circuit board 4, and when the driving device 3 loses the swinging force, the elastic connecting arm 315 also generates the restoring force to restore the main body 313 to the original position, so that the mounting seat 31 not only can help the driving device 3 to restore to the original position more quickly, but also can reduce the restoring pressure of the elastic sheet portion 52, and prolong the service life of the elastic switch 5.

In the above scheme, the positive conductive needle 41 and the negative conductive needle 42 and the elastic conducting sheet 5 with simple structures realize that the rotating speed and the frequency of the driving device 3 are automatically and rapidly changed when the brush head 2 is subjected to overlarge extrusion force, so that teeth and gum are protected from being damaged, the positive conductive needle 41 and the negative conductive needle 42 and the elastic conducting sheet 5 have simple structures, the occupied space is small, and the size of the brush handle 1 is not additionally increased.

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 for preventing tooth overstress, comprising: brush holder (1), with dismantled and assembled mode install in brush head (2) of brush holder (1) upper end, install in but wobbling mode in brush holder (1) and be used for the drive brush drive arrangement (3) of head (2) work and install in brush holder (1) and be used for control drive arrangement (3) circuit board (4), its characterized in that, be provided with on circuit board (4) and be used for triggering to change drive arrangement (3) rotational speed anodal conducting pin (41) and negative pole conducting pin (42), the afterbody of drive arrangement (3) be provided with anodal conducting pin (41) with elastic conducting pin (5) contact conduction of negative pole conducting pin (42), this elastic conducting pin (5) side is provided with one and resets elastic component (6), should reset elastic component (6) both ends respectively with circuit board (4) with drive arrangement (3) contact is fixed and will anodal conducting pin (41) with negative pole conducting pin (41) are led The electrical needle (42) is separated from the elastic conductive sheet (5).

2. The electric toothbrush according to claim 1, wherein the toothbrush is characterized in that: the positive conductive needle (41) is a conductive pogo pin and comprises a conductive seat, a pogo pin head which is arranged on the conductive seat in a telescopic manner and a spring which is arranged between the pogo pin head and the conductive seat, and the conductive seat is fixed on the circuit board (4); the negative electrode conductive pin (42) and the positive electrode conductive pin (41) have the same structure.

3. The electric toothbrush according to claim 2, wherein the toothbrush is characterized in that: drive arrangement (3) tail end is provided with and is used for the installation mount pad (31) of elasticity lead-through piece (5), and this mount pad (31) can be to after the atress for moulding a piece elastic seat circuit board (4) one side deformation skew draws close, and this side still the shaping has and is used for the installation mounting groove (311) of elasticity lead-through piece (5).

4. The electric toothbrush according to claim 3, wherein the toothbrush is characterized in that: the reset elastic piece (6) is a conical spring, a positioning column (312) used for positioning the spring is formed beside the mounting groove (311), and the other end of the spring is fixed with the circuit board (4).

5. The electric toothbrush according to claim 4, wherein the toothbrush further comprises: a bracket (7) for mounting the driving device (3) is arranged in the brush handle (1), the bracket (7) comprises a first bracket (71) and a second bracket (72) which are hinged with each other, and the driving device (3) is mounted in the first bracket (71) and can drive the first bracket (71) to swing relative to the second bracket (72); two ends of the mounting seat (31) are respectively mounted on the driving device (3) and the second bracket (72).

6. The electric toothbrush according to claim 5, wherein the toothbrush further comprises: the circuit board (4) is installed on one side of the support (7), a switch button (11) which corresponds to the circuit board (4) and is used for controlling the starting and closing of the driving device (3) is arranged on the side wall of the brush holder (1), and a battery (12) which is used for providing electric energy for the driving device (3) is installed on the second support (72).

7. The electric toothbrush according to claim 5, wherein the toothbrush further comprises: the joint of the first bracket (71) and the second bracket (72) is hinged together through two symmetrical rotating shafts (73).

8. The powered toothbrush as defined in claim 6, wherein: the first support (71) is in a sleeve shape, and the upper end of the driving device (3) is arranged in the inner cavity of the first support (71); the second support (72) comprises an upper cover shell (721) and a lower cover shell (722) which are symmetrical, the lower end of the driving device (3) is positioned in the upper cover shell (721) and can swing in the upper cover shell (721), and the battery (12) is positioned in the lower cover shell (722).

9. The powered toothbrush as defined in claim 8, wherein: brush holder (1) upper end is provided with and stretches into in the brush head (2) and be used for driving drive assembly (8) of brush head (2) vibrations, drive assembly (8) lower extreme with drive arrangement (3) are connected, drive assembly (8) upper end stretches into in the brush head (2) inner chamber.