CN111227973B - Regular-movement electric toothbrush - Google Patents

Abstract

The invention discloses a rhythmic electric toothbrush, which comprises: brush head, starting switch, battery, brush holder and shock dynamo, brush head and brush holder are connected, starting switch establishes ties between battery and shock dynamo, shock dynamo fixed mounting is in the brush holder, shock dynamo installs the eccentric wheel, the battery is installed in the brush holder, starting switch installs on the brush holder, the brush head includes base member, rhythm device, brush hair and elastic cover, the base member is equipped with the storage tank, rhythm device places in the storage tank, the notch of elastic cover closure storage tank, brush hair fixed mounting is covered at the elasticity. The electric toothbrush has the functions of enabling the bristles to enter deep into tooth gaps through the rhythm device and cleaning teeth comprehensively, and the soft bristle cluster heads and the frosted bristle cluster heads are utilized to clean foreign matters in the tooth gaps while protecting gum, so that the bristles are convenient to replace, and the service life of the electric toothbrush is longer.

Description

Regular-movement electric toothbrush

Technical Field

The invention relates to the field of toiletries, in particular to a rhythmic electric toothbrush.

Background

Since the new century, people pay more and more attention to the quality of life, intelligent products gradually enter common families, along with the improvement of the quality of life, the intelligent products are not limited to products such as computers and mobile phones, more development is carried out on daily necessities closely related to the life of people, and the intelligent electric toothbrush also comes into production. In order to keep the health of teeth, people are troubled by how to correctly brush teeth, however, the electric toothbrush in the market only solves the problem of manual operation during tooth brushing, but cannot solve the problem that vegetable leaves or rice grains attached to the teeth are difficult to remove during tooth brushing, particularly, foreign matters entering gaps between teeth of molars are difficult to completely remove by the aid of the manual toothbrush or the electric toothbrush, and by the aid of an inner side brush, an occlusal surface brush or an outer side brush, bristles are difficult to enter deep gaps between the teeth, for example, a toothbrush easy to clean the foreign matters between the teeth is disclosed in Chinese patent document No. CN201029566, published Japanese patent 20080305 comprises a brush head, the bristles and a brush handle, the bristles are arranged in a circular ring shape or in a linear shape, and the lengths of the bristles are changed in a wavy and undulating shape; the brush hair that changes through the wave fluctuation clears away the interdental foreign matter, but at the in-process of brushing teeth, the rocking speed of toothbrush is very fast, and the brush hair is difficult to get into between the slit between the teeth, especially molar is difficult to get into more between the slit between the teeth, even the brush hair enters into the slit between the teeth occasionally, also is difficult to bring out the foreign matter together, and the brush hair is hard can damage user's gum, is unfavorable for the tooth healthy.

Disclosure of Invention

The invention mainly solves the problem that the original technology can not effectively remove foreign matters between teeth and in decayed teeth; provided is a rhythmic electric toothbrush which removes foreign matters between teeth and in decayed teeth while protecting gums.

The technical problem of the invention is mainly solved by the following technical scheme: a rhythmic electric toothbrush comprising: brush head, starting switch, battery, brush holder and shock dynamo, brush head and brush holder are connected, starting switch establishes ties between battery and shock dynamo, shock dynamo fixed mounting is in the brush holder, shock dynamo installs the eccentric wheel, the battery is installed in the brush holder, starting switch installs on the brush holder, the brush head includes base member, rhythm device, brush hair and elastic cover, the base member is equipped with the storage tank, rhythm device places in the storage tank, the notch of elastic cover closure storage tank, brush hair fixed mounting is covered at the elasticity. The starting switch is pressed to start the toothbrush, the vibration motor drives the brush head to vibrate, the brush hair is driven to do rhythm movement through the rhythm movement device, and foreign matters are removed from the gaps between the teeth at different positions.

Preferably, the rhythm device comprises a swinging type voice coil motor, the swinging type voice coil motor is connected with the vibration motor in parallel, the swing type voice coil motor comprises a shell, magnetic pole steel magnets, a coil, a rotating arm and a gravity moment compensation magnet, the shell is arc-shaped and is provided with a cavity for accommodating the magnetic pole magnetic steel and the coil, the magnetic pole magnetic steel and the coil are both arranged in the cavity, the magnetic pole magnetic steel has an upper layer and a lower layer, the coil is clamped between the magnetic pole magnetic steel and can slide between the magnetic pole magnetic steel, the gravity moment compensation magnet is arranged in the coil, the shell is fixedly connected with the bottom of the containing groove, the first end of the rotating arm penetrates through the outer arc surface of the shell to be connected with the coil, the second end of the rotating arm is provided with a first arc cap, the first arc cap is abutted with the elastic cover, and the rotating arm is an elastic rod with a stretching tendency. The swinging voice coil motor is arranged in the accommodating groove of the brush head base body by utilizing the characteristics of the micro-size, high frequency and high precision of the swinging voice coil motor, so that when the swinging voice coil motor works and swings, the swinging arm with the extension tendency is used for abutting against the elastic cover, the bristles on the elastic cover perform regular fluctuation rhythm, the bristles can go in and out between tooth gaps back and forth, and foreign matters between the tooth gaps can be removed.

Preferably, the toothbrush also comprises a pull rod, an electric push rod and a linear voice coil motor, wherein the electric push rod and the linear voice coil motor are fixedly installed in the toothbrush handle, the linear voice coil motor is connected with the electric push rod and the vibration motor in parallel, the first end of the pull rod is connected with the output end of the linear voice coil motor, the second end of the pull rod is provided with a first arc-shaped inverted hook, the rhythm device comprises a movable rod, a connecting piece and a spring, the connecting piece is in sliding clamping connection with the bottom of the accommodating groove and is provided with a first opening and a second opening, the first opening is matched with the position of the pull rod, the second opening is matched with the position of the output end of the electric push rod, the first end of the spring is fixedly connected with the connecting piece, the first end of the movable rod is provided with a second arc-shaped inverted hook, the second end of the spring is fixedly connected with the second arc-shaped inverted hook, and the second end of the movable rod is provided with a second arc-shaped cap, the second arc cap is abutted with the elastic cover. Through the pull rod of being connected with sharp voice coil motor, at sharp voice coil motor during operation, the first arc barb of pull rod promotes the second arc barb of movable rod, the first opening of second arc barb follow connecting piece breaks away from, withstand up the motion and catch on the second opening by first arc barb, the movable rod supports the elastic cover, the first opening is caught on to the pull rod, sharp voice coil motor work, the pull rod drives the connecting piece and slides in the storage tank, the elastic cover that is supported by the movable rod makes a round trip to fluctuate, fix the regular undulation motion that carries out of brush hair that the elastic cover was covered, make a round trip to pass in and out between the tooth seam, clear away the foreign matter between the tooth seam.

Preferably, the toothbrush further comprises a controller, a speed regulation button and a controllable resistor, wherein the speed regulation button is installed on the toothbrush handle, the controllable resistor is connected between the swinging type voice coil motor and the starting switch in series, the controllable resistor is connected with the swinging type voice coil motor in parallel after being connected with the swinging type voice coil motor in series, the control end of the controllable resistor is connected with the controller, and the speed regulation button is connected with the controller. The frequency of the swinging type voice coil motor is controlled through the controller, the swinging type voice coil motor works at a proper frequency, an instruction is sent to the controller through the speed regulating key to regulate the frequency, and different frequencies act on different tooth parts.

Preferably, the toothbrush further comprises a controller, an electronic switch, a speed regulation key and a controllable resistor, wherein the speed regulation key is installed on the toothbrush handle, the controllable resistor is connected between the linear voice coil motor and the starting switch in series, the controllable resistor is connected with the vibration motor in parallel after being connected with the linear voice coil motor in series, the electronic switch is connected with the electric push rod in parallel after being connected with the vibration motor in series, the control end of the controllable resistor and the control end of the electronic switch are both connected with the controller, and the speed regulation key is connected with the controller. The working frequency of the linear voice coil motor is controlled by the controller and the speed regulation key.

Preferably, the toothbrush further comprises a Bluetooth module, the Bluetooth module is connected with the controller, and the Bluetooth module is installed in the toothbrush handle. The working frequency of the swinging type voice coil motor or the linear voice coil motor can be remotely controlled through the Bluetooth module.

Preferably, the bristles comprise a plurality of bristle tufts, the bristle tufts comprising a head portion, a middle portion and a root portion, the bristle tuft head portion being connected to the root portion first end via the middle portion, the bristle tuft root portion second end being fixedly connected to the elastomeric cap, the bristle tuft head portion comprising a soft bristle tuft head and a frosted bristle tuft head. Adopt the brush hair cluster head of two kinds of different grade types, utilize soft brush hair protection gum not to be hurt, adjust improper when preventing to use for the first time and cause the tooth damage, through dull polish brush hair cluster head, effectively clean the foreign matter between the slit between the tooth and in the decayed tooth, bring out the foreign matter when the brush hair makes a round trip to pass in and out the slit through the dull polish characteristic of frosting.

Preferably, the toothbrush further comprises a charger, the charger is provided with a positioning groove matched with the toothbrush handle, and the charger is used for charging the battery. The charger is used for charging the battery in the brush handle, so that the electric toothbrush has enough electric quantity to operate the swinging type voice coil motor, the vibration motor and the linear voice coil motor.

Preferably, the brush head and the brush handle are detachably connected, and the elastic cover is detachably connected with the accommodating groove. The brush hair is the consumptive article, all can appear warping with having for a long time, and the connection can be dismantled to brush head and brush holder, and the accessible is changed when changing the brush hair and is brushed the head and reach the purpose, the elasticity lid with the connection can be dismantled to the storage tank, also can change the brush hair through changing the elasticity lid.

Preferably, the head is fixedly connected with the brush handle, and the elastic cover is detachably connected with the accommodating groove. The elastic cover is fixedly connected with the bristles, the bristles are positioned on the elastic cover, and the bristles can be replaced by replacing the elastic cover.

The invention has the beneficial effects that: (1) the brush hair can enter the deep part of the slit of the teeth through the rhythm device, so that the teeth can be completely cleaned; (2) different working frequencies are set through the speed regulating key, so that teeth at different parts are effectively protected; (3) the soft bristle cluster head and the frosted bristle cluster head are utilized to protect the gum and remove foreign matters between the teeth; (4) the bristles are convenient to replace, and the service life of the electric toothbrush is longer.

Drawings

Fig. 1 is a schematic view of a toothbrush of the present invention.

Fig. 2 is a schematic view of a brush head structure according to a first embodiment of the invention.

Fig. 3 is a schematic view of a brush head structure of the second embodiment of the invention.

Fig. 4 is a schematic circuit diagram according to a second embodiment of the present invention.

Fig. 5 is a schematic circuit diagram according to a first embodiment of the present invention.

In the figure, 1, a brush head, 2, a brush handle, 3, a controller, 4, a battery, 5, a starting switch, 6, a speed-adjusting button, 7, a vibration motor, 8, magnetic pole magnetic steel, 9, a gravity moment compensation magnet, 10, a bristle tuft head, 11, a bristle tuft middle part, 12, a bristle tuft root, 13, an accommodating groove, 14, a coil, 15, a rotating arm, 16, an electric push rod, 17, a linear voice coil motor, 18, a movable rod, 19, a connecting piece, 20, a second opening, 21, a first opening, 22, a second arc-shaped inverted hook, 23, a first arc-shaped inverted hook, 24, a Bluetooth module, 25, a controllable resistor and 26 are arranged in sequence.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

The first embodiment is as follows:

a rhythmic electric toothbrush comprises a brush head 1, astarting switch 5, abattery 4, abrush holder 2 and a vibratingmotor 7, wherein the brush head 1 and thebrush holder 2 are detachably connected, thestarting switch 5 is connected between thebattery 4 and the vibratingmotor 7 in series, the vibratingmotor 7 is fixedly installed in thebrush holder 2, the vibratingmotor 7 is provided with an eccentric wheel, thebattery 4 is installed in thebrush holder 2, thestarting switch 5 is installed on thebrush holder 2, the brush head 1 comprises a base body, a rhythmic device, bristles and an elastic cover, the base body is provided with anaccommodating groove 13, the rhythmic device is placed in theaccommodating groove 13, the elastic cover closes a notch of theaccommodating groove 13, the bristles are fixedly installed on the elastic cover, the elastic cover is detachably connected with theaccommodating groove 13, the bristles comprise a plurality of bristle tufts, the bristle tufts comprise a head part, a middle part and a root part, the bristletuft head part 10 is connected with a first end of the bristletuft root part 12 through a bristletuft middle part 11, the second end of thetuft root 12 is fixedly attached to the elastomeric cap and thetuft head 10 comprises a soft tuft head and a frosted tuft head.

As shown in fig. 2, the rhythm device includes a swing typevoice coil motor 26, the swing typevoice coil motor 26 is connected in parallel with thevibration motor 7, the swing typevoice coil motor 26 includes a housing,magnetic pole steel 8, acoil 14, a rotatingarm 15 and a gravitymoment compensation magnet 9, the housing is arc-shaped and is provided with a cavity for accommodating themagnetic pole steel 8 and thecoil 14, themagnetic pole steel 8 and thecoil 14 are both arranged in the cavity, themagnetic pole steel 8 has an upper layer and a lower layer, thecoil 14 is clamped between themagnetic pole steel 8 and thecoil 14 can slide between themagnetic pole steel 8, the gravitymoment compensation magnet 9 is arranged in thecoil 14, the housing is fixedly connected with the bottom of theaccommodating groove 13, a first end of the rotatingarm 15 penetrates through an outer arc surface of the housing to be connected with thecoil 14, a second end of the rotatingarm 15 is provided with a first arc cap, the first arc cap is abutted to the elastic cover, and the rotatingarm 15 is an elastic rod with an extension tendency.

As shown in fig. 5, includingcontroller 3,speed governing button 6, the charger,controllable resistor 25 and bluetooth module 24,speed governing button 6 is installed onbrush holder 2,controllable resistor 25 is established ties between swing typevoice coil motor 26 andstarting switch 5,controllable resistor 25 is parallelly connected withshock dynamo 7 after establishing ties with swing typevoice coil motor 26,controllable resistor 25's control end is connected withcontroller 3,speed governing button 6 and bluetooth module 24 all are connected withcontroller 3, bluetooth module 24 andcontroller 3 all install inbrush holder 2, the charger is equipped with the positioning groove withbrush holder 2 assorted for charge forbattery 4.

When the electric toothbrush is used, thebrush handle 2 is taken up, thestarting switch 5 is pressed, thebattery 4 starts to supply power to thevibration motor 7 and the swinging typevoice coil motor 26, thevibration motor 7 starts to drive the brush head 1 to vibrate, at the beginning, the resistance value of thecontrollable resistor 25 is at the maximum position, the swinging typevoice coil motor 26 is equivalently disconnected by thecontrollable resistor 25, the swinging typevoice coil motor 26 does not work, a user uses the electric toothbrush through thevibration motor 7, the electric toothbrush has the same function as a common electric toothbrush, thevibration motor 7 drives the brush head 1 to brush teeth, when the user wants to use the rhythm function, the corresponding instruction is sent to thecontroller 3 by pressing thespeed regulating button 6, thecontroller 3 controls thecontrollable resistor 25 to change the resistance value according to the received instruction, at the moment, the swinging typevoice coil motor 26 swings back and forth at a certain frequency, the adjustable frequency of thespeed regulating button 6 is three types, the toothbrush comprises a first frequency, a second frequency and a third frequency, wherein the first frequency is used for cleaning incisors and canines, the second frequency is used for cleaning premolars and molars, the third frequency is used for cleaning wisdom teeth, according to different frequencies, a user places a brush head 1 at a corresponding tooth position, the brush head 1 is driven by a swing typevoice coil motor 26 to do regular movement correspondingly, the brush head can go in and out in tooth gaps at different positions in a reciprocating mode, foreign matters between the tooth gaps are brought out together by using soft bristle tufts and frosted bristle tufts of a bristle tuft cluster head, the purpose of cleaning the foreign matters between the tooth gaps is achieved, meanwhile, the user can establish communication with a Bluetooth module 24 in abrush handle 2 through a mobile phone end by using wireless communication, an instruction is sent to acontroller 3 through a preset mode, the brushing frequency is set in advance, when the toothbrush is used, only thecontroller 3 needs to wait for a preset time to control acontrollable resistor 25 to change the frequency, when the user needs to replace the bristles, the bristles can be replaced by replacing the brush head 1 or replacing the elastic cover.

Example two:

a rhythmic electric toothbrush comprises a brush head 1, astarting switch 5, abattery 4, abrush holder 2 and a vibratingmotor 7, wherein the brush head 1 is fixedly connected with thebrush holder 2, thestarting switch 5 is connected between thebattery 4 and the vibratingmotor 7 in series, the vibratingmotor 7 is fixedly installed in thebrush holder 2, the vibratingmotor 7 is provided with an eccentric wheel, thebattery 4 is installed in thebrush holder 2, thestarting switch 5 is installed on thebrush holder 2, the brush head 1 comprises a base body, a rhythmic device, bristles and an elastic cover, the base body is provided with anaccommodating groove 13, the rhythmic device is placed in theaccommodating groove 13, the elastic cover closes a notch of theaccommodating groove 13, the bristles are fixedly installed on the elastic cover and are detachably connected with theaccommodating groove 13, the bristles comprise a plurality of bristle tufts, each bristle tuft comprises a head part, a middle part and a root part, the bristletuft head part 10 is connected with a first end of the bristletuft root part 12 through a bristletuft middle part 11, the second end of thetuft root 12 is fixedly attached to the elastomeric cap and thetuft head 10 comprises a soft tuft head and a frosted tuft head.

As shown in fig. 3, the toothbrush comprises a pull rod, anelectric push rod 16 and a linearvoice coil motor 17, wherein theelectric push rod 16 and the linearvoice coil motor 17 are both fixedly installed in atoothbrush handle 2, the linearvoice coil motor 17 is connected with theelectric push rod 16 and avibration motor 7 in parallel, a first end of the pull rod is connected with an output end of the linearvoice coil motor 17, a second end of the pull rod is provided with a first arc-shaped invertedhook 23, a rhythm device comprises amovable rod 18, a connectingpiece 19 and a spring, the connectingpiece 19 is slidably clamped with the bottom of theaccommodating groove 13, the connectingpiece 19 is provided with a first opening 21 and a second opening 20, thefirst opening 21 is matched with the position of the pull rod, thesecond opening 20 is matched with the position of the output end of theelectric push rod 16, the first end of the spring is fixedly connected with the connectingpiece 19, the first end of themovable rod 18 is provided with a second arc-shaped invertedhook 22, the second end of the spring is fixedly connected with the second arc-shaped invertedhook 22, and a second end of themovable rod 18 is provided with a second arc-shaped cap, the second arc cap is abutted with the elastic cover.

As shown in fig. 4, includingcontroller 3,speed governing button 6,controllable resistor 25, bluetooth module 24 and charger,speed governing button 6 is installed onbrush holder 2,controllable resistor 25 establishes ties between sharpvoice coil motor 17 andstarting switch 5,controllable resistor 25 is parallelly connected withshock dynamo 7 after establishing ties with sharpvoice coil motor 17,controllable resistor 25's control end is connected withcontroller 3,speed governing button 6 and bluetooth module 24 all are connected withcontroller 3, bluetooth module 24 andcontroller 3 are all installed inbrush holder 2, the charger is equipped with the positioning groove withbrush holder 2 assorted for charge forbattery 4.

When the electric toothbrush is used, thestarting switch 5 is pressed, thebattery 4 starts to supply power, thecontrollable resistor 25 is at the maximum value at the moment, thevibration motor 7 starts to work to drive the brush head 1 to vibrate, thespeed regulation key 6 is pressed, thecontroller 3 starts to control thecontrollable resistor 25 to change the resistance value, the linearvoice coil motor 17 starts to work, after the brushing is finished, thespeed regulation key 6 is pressed again, thecontroller 3 controls the electronic switch to be closed, theelectric push rod 16 starts to work, the output end of theelectric push rod 16 pushes the second arc-shaped invertedhook 22 of themovable rod 18 through thesecond opening 20, themovable rod 18 is reset under the pulling force of the spring, the pull rod is pushed out by themovable rod 18, the pull rod drives the linearvoice coil motor 17 to push outwards, thecontroller 3 receives a signal that the pull rod is pushed outwards to control the electronic switch to be disconnected, theelectric push rod 16 stops working, thecontroller 3 controls thecontrollable resistor 25 to return to the maximum resistance value, and the linearvoice coil motor 17 stops working, and pressing thestarting switch 5 again, disconnecting thestarting switch 5, stopping thevibration motor 7, and putting the toothbrush on the charger to charge thebattery 4 in the toothbrush.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.

Claims (10)

1. A rhythmic electric toothbrush, comprising:

the toothbrush comprises a toothbrush head, a starting switch, a battery, a toothbrush handle and a vibrating motor, wherein the toothbrush head is connected with the toothbrush handle, the starting switch is connected between the battery and the vibrating motor in series, the vibrating motor is fixedly installed in the toothbrush handle, an eccentric wheel is installed on the vibrating motor, the battery is installed in the toothbrush handle, the starting switch is installed on the toothbrush handle, the toothbrush head comprises a base body, a rhythm device, bristles and an elastic cover, the base body is provided with an accommodating groove, the rhythm device is placed in the accommodating groove, the elastic cover seals the notch of the accommodating groove, and the bristles are fixedly installed on the elastic cover;

the rhythm device includes swing type voice coil motor, swing type voice coil motor is parallelly connected with shock dynamo, swing type voice coil motor includes casing, magnetic pole magnet steel, coil, rocking arm and gravity moment compensation magnet, the casing is the arc and is equipped with the cavity that is used for holding magnetic pole magnet steel and coil, magnetic pole magnet steel and coil all set up in the cavity, the magnetic pole magnet steel is two-layer from top to bottom, the coil joint is between the magnetic pole magnet steel and the coil can slide between the magnetic pole magnet steel, gravity moment compensation magnet sets up in the coil, casing and storage tank bottom fixed connection, the outer cambered surface and the coil connection of casing are passed to the first end of rocking arm, the second end of rocking arm is equipped with first arc cap, first arc cap and elasticity lid butt, the elastic rod of rocking arm for having the extension tendency.

2. The rhythmic electric toothbrush of claim 1, further comprising a controller, a speed-adjusting button and a controllable resistor, wherein the speed-adjusting button is mounted on the handle, the controllable resistor is connected in series between the oscillating voice coil motor and the start switch, the controllable resistor is connected in series with the oscillating voice coil motor and then connected in parallel with the vibration motor, a control end of the controllable resistor is connected to the controller, and the speed-adjusting button is connected to the controller.

3. A rhythmic electric toothbrush according to claim 2, further comprising a bluetooth module connected to the controller, the bluetooth module being mounted in the handle.

4. A rhythmic electric toothbrush according to claim 1 or 2, wherein the bristles comprise a plurality of bristle tufts including a head portion, a middle portion and a root portion, the bristle tuft head portion is connected to the root portion at a first end via the middle portion, the bristle tuft root portion at a second end is fixedly connected to the elastomeric cover, the bristle tuft head portion comprises soft and abrasive bristle tufts.

5. A rhythmic electric toothbrush according to claim 1, further comprising a charger having a positioning recess matching with the handle, the charger being for charging the battery.

6. A rhythmic electric toothbrush according to claim 1, wherein the brush head and the handle are detachably coupled, and the elastic cap is detachably coupled to the receiving groove.

7. A rhythmic electric toothbrush, comprising:

the toothbrush comprises a brush head, a starting switch, a battery, a brush handle, a vibration motor, a pull rod, an electric push rod and a linear voice coil motor, wherein the brush head is connected with the brush handle, the starting switch is connected between the battery and the vibration motor in series, the vibration motor is fixedly installed in the brush handle, an eccentric wheel is installed on the vibration motor, the battery is installed in the brush handle, the starting switch is installed on the brush handle, the brush head comprises a base body, a rhythm device, bristles and an elastic cover, the base body is provided with a containing groove, the rhythm device is placed in the containing groove, the elastic cover seals the notch of the containing groove, and the bristles are fixedly installed on the elastic cover;

the equal fixed mounting of electric putter and linear voice coil motor is in the brush holder, linear voice coil motor and electric putter and shock dynamo are parallelly connected, the first end and the linear voice coil motor output of pull rod are connected, the second end of pull rod is equipped with first arc overhead kick, regular motion device includes movable rod, connecting piece and spring, connecting piece and storage tank bottom slip joint, the connecting piece is equipped with first opening and second opening, first opening and pull rod position match, the second opening matches with electric putter output position, the first end and the connecting piece fixed connection of spring, the first end of movable rod is equipped with second arc overhead kick, the second end and the second arc overhead kick fixed connection of spring, the second end of movable rod is equipped with second arc cap, second arc cap and elasticity lid butt.

8. The rhythmic electric toothbrush of claim 7, further comprising a controller, an electronic switch, a speed-adjusting button and a controllable resistor, wherein the speed-adjusting button is mounted on the handle, the controllable resistor is connected in series between the linear voice coil motor and the start switch, the controllable resistor is connected in series with the linear voice coil motor and then connected in parallel with the vibration motor, the electronic switch is connected in series with the electric push rod and then connected in parallel with the vibration motor, a control end of the controllable resistor and a control end of the electronic switch are both connected with the controller, and the speed-adjusting button is connected with the controller.

9. The rhythmic electric toothbrush of claim 7, wherein the brush head and the brush handle are fixedly connected, and the elastic cap is detachably connected to the receiving groove.

10. The rhythmic electric toothbrush of claim 8, further comprising a bluetooth module, the bluetooth module being connected to the controller, the bluetooth module being mounted in the handle.

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