CN107928827A - Electric toothbrush - Google Patents

Electric toothbrush Download PDF

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Publication number
CN107928827A
CN107928827A CN201610894669.9A CN201610894669A CN107928827A CN 107928827 A CN107928827 A CN 107928827A CN 201610894669 A CN201610894669 A CN 201610894669A CN 107928827 A CN107928827 A CN 107928827A
Authority
CN
China
Prior art keywords
eccentric shaft
steel wire
electric toothbrush
shaft
movable part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610894669.9A
Other languages
Chinese (zh)
Inventor
郭建刚
曾展晖
熊厚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Original Assignee
Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Xinbao Electrical Appliances Holdings Co Ltd filed Critical Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority to CN201610894669.9A priority Critical patent/CN107928827A/en
Publication of CN107928827A publication Critical patent/CN107928827A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3481Vibrating brush body, e.g. by using eccentric weights

Abstract

The invention discloses a kind of electric toothbrush, including main part and brush head, the main part is flexibly connected with brush head by a movable part, is further included:Motor;Steel wire, its first end and the output axis connection of the motor, and can be rotated with the output shaft;Eccentric shaft, it is arranged in the movable part, and the first end of the eccentric shaft is connected with the second end of the steel wire, and is rotated with the steel wire, the second end of the eccentric shaft is connected with the movable part in a manner of the movable part is moved with the second end of the eccentric shaft in radial directions, wherein:The steel wire at least has a bending section, and the bending section limits at grade.Due to being provided with the steel wire of said structure between eccentric shaft and motor so that eccentric shaft can change in axial location and radial position, so as to change the vibration frequency and amplitude of brush head, and then meet to require the difference of vibration.

Description

Electric toothbrush
Technical field
The present invention relates to a kind of daily necessities, more particularly to a kind of electric toothbrush.
Background technology
To have been used by more people as a kind of new oral cleaning tool, its major advantage is brush head for electric toothbrush Action without lean on people's hand-drive, but by the driving of automatic machine power.Electric toothbrush of the prior art generally includes one A main part (shape of the main part is similar to the shank of ordinary toothbrush), (movable part is by bullet for the movable part being connected with main part Property material is made, the flexible and torsional deflection when being subject to radial load and torsional moment) and it is arranged on brush head on movable part, Motor is provided with main part, eccentric shaft is provided with movable part, which is driven by motor and forms eccentric rotary, Movable part is set to drive toothbrush to be vibrated due to the rotation of eccentric shaft, which is similar to using the vibration realizing of brush head The action that the brush head of ordinary toothbrush is brushed teeth.
However, the electric toothbrush of the said structure of the prior art is since the eccentric motion of eccentric shaft remains constant, and The position of centre of gravity of eccentric shaft itself will not change, so that cause the vibration frequency of brush head and amplitude to be held essentially constant, So as to which requirement of the different crowd to different vibration frequencies and amplitude can not be adapted to.For this reason, in Patent No. CN101965160B State's patent provides a kind of electric toothbrush, by setting moving counterweight and helical spring in one embodiment of the electric toothbrush Change the vibration frequency and amplitude of eccentric shaft and brush head to change the axially and radially position of the conjunction center of gravity of eccentric shaft with this.At this In embodiment, by being played the role of very little in the position of centre of gravity for changing eccentric shaft caused by the structure of helical spring.
The content of the invention
For above-mentioned technical problem existing in the prior art, the embodiment provides a kind of electric toothbrush.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of electric toothbrush, including main part and brush head, the main part are flexibly connected with brush head by a movable part, institute Electric toothbrush is stated to further include:
Motor, it is arranged in the main part;
Steel wire, its first end and the output axis connection of the motor, and can be rotated with the output shaft;
Eccentric shaft, it is arranged in the movable part, and the first end of the eccentric shaft is connected with the second end of the steel wire, And rotated with the steel wire, the second end of the eccentric shaft is with the movable part with the movable part in radial directions with described The mode of the second end movement of eccentric shaft connects, wherein:
The steel wire at least has a bending section, and the bending section limits at grade.
Due to being provided with the steel wire of said structure between eccentric shaft and motor so that eccentric shaft can in axial location and Radial position changes, so as to change the vibration frequency and amplitude of brush head, and then meets to require the difference of vibration.
Preferably, the bending section is S-shaped bending section.S-shaped bending section adds the regularity of eccentric shaft rotation.
Preferably, the output shaft and the steel wire are described inclined by the first transmission axis connection made of elastic material Mandrel and the steel wire by made of elastic material second driving shaft be connected.Made of elastic material the first transmission shaft and Second driving shaft improves the degree of flexibility that eccentric shaft is connected with motor.
Preferably, the first end of the steel wire and the output shaft are respectively protruding into the both ends of first transmission shaft, described Rolling bearing is installed on first transmission shaft.Rolling bearing can make the first transmission shaft driven more steady.
Preferably, the first end of the eccentric shaft stretches into second rotation axis, formed with the second driving shaft One spacing table top, the eccentric shaft is formed with the second spacing table top for being closed with the first limiting stand face paste.First is spacing Table top is bonded the relative rotation that effectively prevent between eccentric shaft and second driving shaft with the second spacing table top.
Preferably, first transmission shaft and the second driving shaft are by plastic material compression molding.Plastic material pressure The type of being moulded into can improve efficiency caused by the first transmission shaft and the second driving shaft, reduce manufacture cost.
Preferably, further include and set is perturbed made of elastic material, it is described to perturb set formed with cavity volume in the movable part It is arranged in the cavity volume and is fitted close with the cavity volume, the cavity volume is housed close to one end of the brush head formed with first Hole, one end of the disturbance set are stretched into first accepting hole, and the disturbance set is stretched into the part of first accepting hole Formed with the second accepting hole, the eccentric shaft is arranged on described perturb in set and the second end of the eccentric shaft stretches into described second Take in hole.Eccentric shaft provides vibration by perturbing set for movable part, avoids eccentric shaft and directly contacts movable part.
Preferably, the movable part is detachably connected with the main part in a manner of card is set.Portable propelling portion and main body Dismantle in portion.
Preferably, the outside of the main part is provided with speed governing button and turns to button, and the inside of the main part is set There is controller, the speed governing button and the button that turns to control the rotating speed of the motor by the controller and turn respectively To.Speed governing button and steering button change the vibration frequency of eccentric shaft and amplitude by controlling motor.
Preferably, the steel wire is made of spring steel.It is longer by the steel wire service life of spring steel, it is not easy to fatigue occurs Destroy.
Compared with prior art, the beneficial effect for the electric toothbrush that the embodiment of the present invention is provided is:The present invention's is upper The electric toothbrush of embodiment offer is stated, due to being provided with the steel wire of said structure between eccentric shaft and motor so that eccentric shaft It can change in axial location and radial position, so as to change the vibration frequency and amplitude of brush head, and then meet to shaking Dynamic different requirements.
Brief description of the drawings
Fig. 1 is the structure diagram for the electric toothbrush that the embodiment of the present invention provides;
Fig. 2 is the assembling schematic diagram of this oscillating component for the electric toothbrush that the embodiment of the present invention provides;
Fig. 3 is the decomposition diagram of this oscillating component for the electric toothbrush that the embodiment of the present invention provides;
Fig. 4 is the structure diagram of this oscillating component for the electric toothbrush that the embodiment of the present invention provides.
In figure:
10- main parts;20- movable parts;21- brush heads;The first accepting holes of 22-;30- motors;40- steel wires;50- eccentric shafts; 60- perturbs set;The second accepting holes of 61-;The first transmission shafts of 70-;80- second driving shafts;The first spacing table tops of 81-;91- speed governing is pressed Button;92- turns to button.
Embodiment
To make those skilled in the art be better understood from technical scheme, below in conjunction with the accompanying drawings and specific embodiment party Formula elaborates the present invention.
As shown in Figures 1 to 3, embodiment of the invention discloses that a kind of electric toothbrush, the electric toothbrush include main part 10, Movable part 20, brush head 21 and it is arranged on oscillating component in main part 10 and in movable part 20;Main part 10 and movable part 20 Be docking together the bar to be formed similar to ordinary toothbrush, and main part 10 is gripped for user, and brush head 21 is arranged on movable part 20 End, movable part 20 are made of elastic material, therefore are being subject to cross force or twisting resistance makes to bend and torsional deflection.Shake Dynamic part specifically includes motor 30, steel wire 40 and eccentric shaft 50, and specifically, motor 30 is arranged in main part 10 and close to main One end that body portion 10 is docked with movable part 20, and the output shaft of motor 30 is arranged on activity towards movable part 20, eccentric shaft 50 In portion 20, eccentric shaft 50 (being specially the second end of eccentric shaft 50) is with movable part 20 with movable part 20 in radial directions with bias The mode that axis 50 moves connects, which is driven to carry out eccentric rotary by motor 30, since eccentric shaft 50 is in circumference side Upward position constantly changes, i.e., the position of centre of gravity of eccentric shaft 50 constantly changes in a circumferential direction so that eccentric Axis 50 drives the resultant motion (or vibration) that movable part 20 and brush head 21 twist with flexural deformation, the above-mentioned movement of brush head 21 Just it is fitted with the action manually brushed teeth, electric tooth brushing can be realized from energy.Know by theoretical calculation and experimental verification, it is eccentric If the radial position of the circular motion of axis 50 and axial location can change, the vibration of eccentric shaft 50 can be changed Frequency and amplitude, so as to meet the action for the brush head 21 that different vibrations require.To realize the purpose, in the prior art in eccentric shaft One helical spring is set between 50 and motor 30, so that realizing flexible connection between eccentric shaft 50 and motor 30, works as motor During 30 raising rotating speed, under the influence of centrifugal force, since helical spring diametrically only has less constraint to eccentric shaft 50, partially Mandrel 50 can realize the change of radial position, so that vibration frequency and amplitude are changed, but helical spring is for eccentric shaft 50 The change of axial location do not play positive effect, or even play negative consequence, that is to say, that turn when motor 30 improves When fast, the coefficient of elasticity of helical spring becomes larger, and helical spring becomes not soft as before, so as to prevent the axis of eccentric shaft 50 Change to position.The reason for coefficient of elasticity of helical spring becomes larger is:Helical spring is formed by steel wire in spatially spiral, spiral shell Spring is revolved integral into the tubular with certain diameter, and when motor 30 drives eccentric shaft 50 to rotate, motor 30 has helical spring There is certain torsional moment, which acts on the tangential direction of steel wire (steel wire into space circle arcuation), so that often enclosing steel The diameter of silk constantly diminishes, and the distance between two adjacent rings steel wire constantly reduces.See on the whole, the diameter of spiral wire subtracts It is small, according to the mechanics of materials and theory of elastic mechanics, in the axial direction, the power of increase unit length is become larger, i.e. elasticity system Count the helical spring in other words that becomes larger to be hardened, so as to prevent the change of the position of 50 axial direction of eccentric shaft.The key of the present invention It is to solve above-mentioned technical problem of the prior art, is connected between eccentric shaft 50 and motor 30 by a steel wire 40, the steel Silk 40 the characteristics of be:Steel wire 40 at least has a bending section, and bending section limits at grade.
The advantages of steel wire 40 set in the present invention had not only inherited helical spring in the prior art, but also abandoned helical spring The shortcomings that, reason is:As shown in figure 4, the bending section in the steel wire 40 of the present invention is not spiral forming, that is to say, that bending For each particle in section in same plane, which makes axial location and the footpath of eccentric shaft 50 by axially and radially stretching Can change to position, it is often more important that, when motor 30 drive steel wire 40 rotate when, due to steel wire 40 bending section it is each Particle cannot be similar to the above-mentioned tangential power driving (reality of steel wire 40 in same plane, motor 30 to be applied to steel wire 40 On, the structure for applying circumferential force is simultaneously not present in the bending section of steel wire 40), but steel wire 40 is driven by motor 30, steel wire 40 is certainly Body is by realizing the transmission of torque against torsion, so that the bending drag of steel wire 40 in the axial direction will not change, The bending drag is similar to the coefficient of elasticity of helical spring, so that the softness of steel wire 40 will not change.
The electric toothbrush that the above embodiment of the present invention provides, it is above-mentioned due to being provided between eccentric shaft 50 and motor 30 The steel wire 40 of structure so that eccentric shaft 50 can change in axial location and radial position, so as to change brush head 21 Vibration frequency and amplitude, and then meet to require the difference of vibration.
To enable eccentric shaft 50 to carry out rule vibration, the bending section of steel wire 40 is set to be arranged to S-shaped, in this way, eccentric shaft 50 The change of position diametrically is identical in movement circumferential direction.Preferably, steel wire 40 is made of spring steel.
Further to realize the flexible connection between eccentric shaft 50 and motor 30, output shaft passes through by elastic material with steel wire 40 The first transmission shaft 61 connects made of material, eccentric shaft 50 and steel wire 40 by made of elastic material second driving shaft 80 connect Connect.Preferably, the first transmission shaft 61 and second driving shaft 80 are by plastic material compression molding.First transmission shaft 61 and second passes Flexible connect is realized in the connection that moving axis 80 is connected between connection and eccentric shaft 50 and the steel wire 40 made between output shaft and steel wire 40 Connect.Specifically, the inserting column of the first end of steel wire 40 and output shaft are respectively protruding into the both ends of the first transmission shaft 61, and by gluing Or other fixed structures are pacified on the first transmission shaft 61 so that 40 and first transmission shaft 61 of steel wire is rotated with the output shaft of motor 30 Rolling bearing is filled so that stable drive.
To prevent eccentric shaft 50 from being rotated relative to second driving shaft 80, the inserting column of the first end of eccentric shaft 50 stretches into second turn Moving axis, formed with the first spacing table top 81 on second driving shaft 80, eccentric shaft 50 with the first spacing table top 81 formed with for pasting The the second spacing table top closed.The fitting of first spacing 81 and second spacing table top of table top can prevent eccentric shaft 50 relative to second Transmission shaft 80 twists.
Realize that movable part 20 can have much with the connection mode that eccentric shaft 50 moves, one in the present invention is preferable to carry out In example, electric toothbrush further includes and set 60 is perturbed made of elastic material, formed with cavity volume in movable part 20, perturbs set 60 and sets It is fitted close in cavity volume and with cavity volume, cavity volume formed with the first accepting hole 22, disturbs one end of set close to one end of brush head 21 Stretch into the first accepting hole 22, disturbance set is stretched into the part of the first accepting hole 22 formed with the second accepting hole 61, eccentric shaft 50 It is arranged on and perturbs in set 60 and the second end of eccentric shaft 50 stretches into the second income hole.In this way, brush head 21 and movable part 20 can Rotated with eccentric shaft 50.
For that can replace and repair the oscillating component inside electric toothbrush, movable part 20 is with main part 10 in a manner of card is set It is detachably connected.
For that can control the rotating speed of motor 30 and steering, the outside of main part 10 is provided with speed governing button 91 and turns to button 92, main part 10 is internally provided with controller, and speed governing button 91 and steering button 92 control motor 30 by controller respectively Rotating speed and steering.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention It is defined by the claims.Those skilled in the art can make the present invention respectively in the essence and protection domain of the present invention Kind modification or equivalent substitution, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.

Claims (10)

1. a kind of electric toothbrush, including main part and brush head, the main part is flexibly connected with brush head by a movable part, it is special Sign is that the electric toothbrush further includes:
Motor, it is arranged in the main part;
Steel wire, its first end and the output axis connection of the motor, and can be rotated with the output shaft;
Eccentric shaft, it is arranged in the movable part, and the first end of the eccentric shaft is connected with the second end of the steel wire, and with The steel wire rotates, and the second end of the eccentric shaft is with the movable part with the movable part in radial directions with the bias The mode of the second end movement of axis connects, wherein:
The steel wire at least has a bending section, and the bending section limits at grade.
2. electric toothbrush according to claim 1, it is characterised in that the bending section is S-shaped bending section.
3. electric toothbrush according to claim 2, it is characterised in that the output shaft passes through by elastic material with the steel wire First transmission axis connection made of material, the eccentric shaft and the steel wire by made of elastic material second driving shaft connect Connect.
4. electric toothbrush according to claim 3, it is characterised in that the first end of the steel wire and output shaft difference The both ends of first transmission shaft are stretched into, rolling bearing is installed on first transmission shaft.
5. electric toothbrush according to claim 3, it is characterised in that the first end of the eccentric shaft stretches into described second turn Moving axis, formed with the first spacing table top on the second driving shaft, the eccentric shaft formed with for first limiting stand The second spacing table top that face paste is closed.
6. electric toothbrush according to claim 3, it is characterised in that first transmission shaft and the second driving shaft are equal By plastic material compression molding.
7. electric toothbrush according to claim 1, it is characterised in that further include and set is perturbed made of elastic material, institute State in movable part and be set in the cavity volume and be fitted close with the cavity volume, the cavity volume formed with cavity volume, described perturb Close to one end of the brush head formed with the first accepting hole, one end of the disturbance set is stretched into first accepting hole, described Disturbance set is stretched into formed with the second accepting hole in the part of first accepting hole, and the eccentric shaft is arranged on described perturb in set And the second end of the eccentric shaft stretches into the second income hole.
8. electric toothbrush according to claim 1, it is characterised in that the side that the movable part is set with the main part with card Formula is detachably connected.
9. electric toothbrush according to claim 1, it is characterised in that the outside of the main part be provided with speed governing button and Button is turned to, the main part is internally provided with controller, and the speed governing button and the steering button pass through the control Device controls rotating speed and the steering of the motor respectively.
10. electric toothbrush according to claim 1, it is characterised in that the steel wire is made of spring steel.
CN201610894669.9A 2016-10-13 2016-10-13 Electric toothbrush Pending CN107928827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610894669.9A CN107928827A (en) 2016-10-13 2016-10-13 Electric toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610894669.9A CN107928827A (en) 2016-10-13 2016-10-13 Electric toothbrush

Publications (1)

Publication Number Publication Date
CN107928827A true CN107928827A (en) 2018-04-20

Family

ID=61928443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610894669.9A Pending CN107928827A (en) 2016-10-13 2016-10-13 Electric toothbrush

Country Status (1)

Country Link
CN (1) CN107928827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110601434A (en) * 2019-09-25 2019-12-20 无音速(深圳)科技有限公司 Electric machine
CN112370202A (en) * 2020-11-23 2021-02-19 深圳素士科技股份有限公司 Bendable toothbrush head and electric toothbrush
GB2610232A (en) * 2021-08-31 2023-03-01 Hayco Mfg Limited Electric toothbrush

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1830401A (en) * 2005-03-07 2006-09-13 王文林 Toothbrush with base of wave-shapet three-dimensional full direction motion
CN2836749Y (en) * 2005-06-13 2006-11-15 王文林 Elastomer electric toothbrush
WO2009113368A1 (en) * 2008-03-13 2009-09-17 オムロンヘルスケア株式会社 Electric toothbrush
CN201453406U (en) * 2009-04-23 2010-05-12 王文林 Electric toothbrush with moving and vibratory elastic body
CN101711707A (en) * 2008-10-08 2010-05-26 王文林 Toothbrush with bristles doing one-dimensional, two-dimensional and three-dimensional omnidirectional motion
CN101879094A (en) * 2009-05-07 2010-11-10 王文林 Toothbrush with movable brush head, triple absorption force and omnidirectional motions
WO2011077285A2 (en) * 2009-12-23 2011-06-30 Koninklijke Philips Electronics N.V. Mechanically driven resonant drive train for a power toothbrush
CN102846395A (en) * 2012-10-18 2013-01-02 天津市中环三峰电子有限公司 Double-brush electric toothbrush
CN206566031U (en) * 2016-10-13 2017-10-20 广东新宝电器股份有限公司 Electric toothbrush

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1830401A (en) * 2005-03-07 2006-09-13 王文林 Toothbrush with base of wave-shapet three-dimensional full direction motion
CN2836749Y (en) * 2005-06-13 2006-11-15 王文林 Elastomer electric toothbrush
WO2009113368A1 (en) * 2008-03-13 2009-09-17 オムロンヘルスケア株式会社 Electric toothbrush
CN101711707A (en) * 2008-10-08 2010-05-26 王文林 Toothbrush with bristles doing one-dimensional, two-dimensional and three-dimensional omnidirectional motion
CN201453406U (en) * 2009-04-23 2010-05-12 王文林 Electric toothbrush with moving and vibratory elastic body
CN101879094A (en) * 2009-05-07 2010-11-10 王文林 Toothbrush with movable brush head, triple absorption force and omnidirectional motions
WO2011077285A2 (en) * 2009-12-23 2011-06-30 Koninklijke Philips Electronics N.V. Mechanically driven resonant drive train for a power toothbrush
CN102846395A (en) * 2012-10-18 2013-01-02 天津市中环三峰电子有限公司 Double-brush electric toothbrush
CN206566031U (en) * 2016-10-13 2017-10-20 广东新宝电器股份有限公司 Electric toothbrush

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110601434A (en) * 2019-09-25 2019-12-20 无音速(深圳)科技有限公司 Electric machine
CN112370202A (en) * 2020-11-23 2021-02-19 深圳素士科技股份有限公司 Bendable toothbrush head and electric toothbrush
CN112370202B (en) * 2020-11-23 2022-05-17 深圳素士科技股份有限公司 Bendable toothbrush head and electric toothbrush
GB2610232A (en) * 2021-08-31 2023-03-01 Hayco Mfg Limited Electric toothbrush
EP4140442A1 (en) * 2021-08-31 2023-03-01 Hayco Manfacturing Ltd. Electric toothbrush

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