CN2604980Y - Cam and lever driven electric toothbrush - Google Patents
Cam and lever driven electric toothbrush Download PDFInfo
- Publication number
- CN2604980Y CN2604980Y CN 03223760 CN03223760U CN2604980Y CN 2604980 Y CN2604980 Y CN 2604980Y CN 03223760 CN03223760 CN 03223760 CN 03223760 U CN03223760 U CN 03223760U CN 2604980 Y CN2604980 Y CN 2604980Y
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- Prior art keywords
- cam
- lever
- electric toothbrush
- monolateral
- transmission electric
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Abstract
The utility model relates to a drive electric toothbrush with cam and lever, which comprises a handle shell, a battery arranged in the handle shell, a motor, a toothbrush head, and a drive mechanism. The utility model is characterized in that the drive mechanism is a unilateral cam and lever drive mechanism, the unilateral cam is arranged on the axis of the motor, the lever is contacted with the cam surface of the unilateral cam, the rotating unilateral cam drives the lever and makes the brush seat of the toothbrush head swing left and right. The utility model adopts the driving method of unilateral cam and lever, and is also provided with a clearance adjusting device with compact structure, high driving efficiency and low noise; by adopting the elastic multifunctional pole tablets to drive the motor axis, the clearance produced by the system friction can be compensated, and the service life of the product is greatly prolonged.
Description
Technical field
This utility model relates to electric toothbrush, particularly a kind of cam and lever transmission electric toothbrush.
Background technology
Electric toothbrush is a kind of electronic oral hygiene appliance, and existing market is common.But various problems such as these common electric toothbrushes all exist, and complex structure, cost height, noise are big, brush mounting or dismounting inconvenience, malfunctioning switch, life-span fall short of, battery cover dismounting inconvenience.
Summary of the invention
Above-mentioned defective in view of existing electric toothbrush exists the utility model proposes a kind of electric toothbrush of adopting cam and lever transmission, to satisfy the demand in market.
Cam of the present utility model and lever transmission electric toothbrush, comprise: handle case, be installed in battery, motor in the handle case, head toothbrushes and drive mechanism, it is characterized in that described drive mechanism is monolateral cam and lever transmission mechanism, monolateral cam is installed on the motor drive shaft, and lever contacts with the cam surface of monolateral cam, and the monolateral cam activation lever of rotation makes the left and right swing of pieces seat of head toothbrushes head.
The drive mechanism of this electric toothbrush adopts monolateral cam and shoulders the bar kind of drive, is provided with slack adjuster simultaneously, compact conformation, the transmission efficiency height, noise is low, can compensate the gap that produces because of system wear by elasticity is many with pole piece promotion motor drive shaft, and product is prolonged service life greatly.
Description of drawings
Fig. 1 is the front view of this utility model one exemplary embodiments;
Fig. 2 is the internal structure sketch map of Fig. 1;
Fig. 3 is the state diagram of its pieces seat when forwarding top dead centre to;
Fig. 4 a is that its drive mechanism is many with correlated parts state diagrams such as pole pieces and motor drive shafts when not wearing and tearing;
Fig. 4 b is many with correlated parts state diagrams such as pole piece and motor drive shafts when being its drive mechanism wearing and tearing;
Fig. 5 is the cam bus expanded view of its monolateral cam;
Fig. 6 is its push-pull bar structural representation;
Fig. 7 is its switch opens state diagram;
Fig. 8 is its switch closed condition figure;
Fig. 9 is illustrated under the effect of F power, and the battery carrier button bit is deviate from the battery cover state diagram;
Figure 10 a, b are that its push-pull bar imports the connecting rod state diagram;
Figure 11 a, b are its push-pull bar lock link state diagrams;
Figure 12 a, b are the structural representations of this utility model second embodiment;
Figure 13 a, b, c are the woollen brush base structure charts of second embodiment;
Figure 14 a, b are the state diagrams that the high bit of the monolateral cam of second embodiment is in the left side and the right;
Figure 15 is the drive connection figure of second embodiment.
The specific embodiment
Below in conjunction with the embodiment accompanying drawing this utility model is further described.
Fig. 1,2 illustrated embodiment electric toothbrushes comprise handle case 10, battery 13, motor 7, head toothbrushes and monolateral cam and lever transmission mechanism.How battery 13, motor 7 and elasticity are installed in the handle case 10 by motor battery frame 9 with pole piece 8 etc.Described monolateral cam and lever transmission mechanism comprise monolateral cam 6 and the lever 5 that is installed on the motor drive shaft 7-1, lever 5 is loaded in the handle case 10 by lever drive axle 5-1, lever 5 contacts with the cam surface of monolateral cam 6, end at lever 5 flexibly connects connecting rod 3, between connecting rod 3 and the handle case 10 sealing ring 4 is set, connecting rod 3 upper ends connect push-pull bar 1, the brush bar 2 inwall stop portion tight fits of push-pull bar 1 return muscle 1-2 and head toothbrushes, and push-pull bar 1 upper end flexibly connects pieces seat 16.Motor drives monolateral cam rotation, and monolateral cam swings back and forth the pieces seat by lever, connecting rod and push-pull bar, realizes the purpose of brushing teeth.
Wherein, connecting rod 3 and sealing ring 4 movingly, the power transmission shaft 5-2 of connecting rod 3 afterbody holes and lever 5 movingly, sealing ring 4 and handle case 10 tight fits.Shoulder the rotating shaft 5-1 of bar 5 and handle case 10 movingly.The axle 7-1 tight fit of monolateral cam 6 and motor 7, cam surface is close to the two terminal circle cambered surface of connecting rod 5.Motor battery frame 9 and handle case 10 tight fits, and be provided with button bit and fasten handle case 10 and battery cover 12, how also being fixed tightly on the motor battery frame 9 with pole piece 8, battery spring 11 is fastened on the battery cover 12.Battery cover 12 and handle case 10 tight fits.Battery 13 and motor battery frame 9 movingly, switchboard 14 and motor battery frame 9 are movingly.Switch flexible glue pad 15 is attached on the handle case 10.
Described head toothbrushes contains pieces seat 16 and brush bar 2 etc., pieces seat 16 is movably arranged on brush bar 2 heads, the axle sleeve 2-1 of brush bar 2 and the rotating shaft 16-2 of pieces seat 16 are movingly, with handle case 10 tight fits, push-pull bar 1 is installed in brush bar 2 inner stopper places, the return muscle 1-2 of push-pull bar 1 and brush bar 2 tight fits, the power transmission shaft 16-2 of push-pull bar 1 head bore and pieces seat 16 movingly, afterbody and connecting rod 3 are movingly.
With reference to Fig. 2,3,5 its transmission principles of explanation.Motor 7 unidirectional rotations drive monolateral cam 6 unidirectional rotations, the cam surface of monolateral cam has high bit shown in Figure 5 and low bit, when low bit is in power transmission shaft 5-2 one side of shouldering bar 5, by connecting rod 3 pulling push-pull bars 1 toward descending, then by push-pull bar 1 pulling pieces seat 16 around the shaft 16-1 rotate until to the lower dead center (see figure 2).When the high bit of cam surface of monolateral cam is in power transmission shaft 5-2 on one side the time, situation is opposite, and pieces seat 16 16-1 around the shaft upwards rotates until to the top dead centre (see figure 3), so circulation, then pieces seat 16 constantly around the shaft 16-1 swing back and forth, realize the function of brushing teeth.Push-pull bar 1 movement locus because of the hole of its head in transmission process is the circular arc that rotates around the rotating shaft 16-1 of pieces seat 16, so the distance in the axle center of the center of its head bore and brush bar 2 changes the axis swing of brush bar 2 relatively just.In order to compensate the gap that the drive mechanism wearing and tearing cause, increase the service life, this electric toothbrush is provided with the slack adjuster of drive mechanism.Fig. 4 a, 4b are that its drive mechanism is many with correlated parts state diagrams such as pole pieces 8 and motor drive shaft 7-1 when not wearing and tearing and wearing and tearing.This slack adjuster comprises that elasticity uses pole piece 8 more, and how elasticity is fixed on the motor battery frame 9 with pole piece 8, and how elasticity is close to motor drive shaft 7-1 lower end with a stretch section of pole piece 8, can regulate the gap of drive mechanism automatically.How elasticity be with the longitudinal cross-section of pole piece 8 among the embodiment
Shape, how elasticity is close to motor drive shaft 7-1 lower end with a stretch section of pole piece 8, and how elasticity is close to battery one utmost point with another stretch section of pole piece 8, cooperates switchboard to make elasticity how have the effect of on and off switch simultaneously with pole piece 8.Its principle is: the axle 7-1 of motor 7 has certain axial string momentum when design usually.The gap that the relevant movement parts of each of the design cooperatively interacts when motor drive shaft 7-1 is in free state is near zero, and this moment, assembling back motor drive shaft 7-1 can expose long part [seeing Fig. 4 a] in the lower end.After product uses a period of time, relevant movement parts can produce wearing and tearing, be that the gap appears in drive system, at this moment, be close to the lower end of motor drive shaft 7-1 because of many with pole piece 8, under many elastic force promotions with pole piece 8, motor drive shaft 7-1 can upwards go here and there, the gap that the elimination system occurs because of wearing and tearing, big leap ahead product service life.(seeing Fig. 4 b)
As shown in Figure 6, the hypomere of push-pull bar 1 is provided with return muscle 1-2, and return muscle 1-2 is an elastomer, at the upside of return muscle 1-2 thinner main deformation section 1-1 can be set, and the longitudinal cross-section of this main deformation section 1-1 is
Shape can produce return elastic force being subjected to external force effect distortion, and after breaking away from handle case 10, return influential point of tendons moves push-pull bar 1 to minimum point, and push-pull bar 1 is good with connecting rod 3 snap closes when guaranteeing that brush is packed handle into.
With reference to Fig. 7,8 switch opens/closed condition figure, lever switch is adopted in this electric toothbrush, described switch comprises that lever type switchboard 14 and elasticity uses pole piece 8 more, how elasticity is close to motor drive shaft 7-1 lower end and battery 13 electrodes respectively with two stretch sections of pole piece 8, by the many electrodes that break away from or be adjacent to battery with pole piece of switchboard 14 controls.When switchboard 14 was in Fig. 8 position, the foot bit of switchboard 14 left the pole pieces 8 of using more, how can be close on the electrode of battery 13 with pole piece 8, at this moment circuit turn-on; When switchboard 14 is in Fig. 7 position, more than pressing, the foot bit of switchboard 14 leaves the electrode of battery 13 with pole piece 8, cut off circuit this moment.
With reference to Fig. 9, battery cover 12 adopts the button bit mode with being connected of handle case 10.Motor battery frame 9 and handle case 10 tight fits, motor battery frame 9 ends have two button bits, offer two square holes on the battery cover 12, and battery cover 12 is packed into after the handle case, and two button bits of motor battery frame 9 are buckled in (see figure 2) in 2 square holes of battery cover 12.In the time will taking off battery cover, at the afterburning F of the flexible glue pad 10-1 of handle case 10, the button bit of distortion of flexible glue pad and promotion motor battery frame 9 is deviate from the square hole of battery cover 12, can pull out battery cover 12 backward.
Push-pull bar 1 and the mode that adopts the locking of button bit shown in Figure 10 a, b and Figure 11 a, the b being connected of connecting rod 3, push-pull bar 1 button bit is designed to flat side, and its shape is similar to the hole of connecting rod 3; When flat side's directions of two were consistent, then push-pull bar 1 can import to (see figure 10) in the hole of connecting rod smoothly, will push-pull bar 1 be rotated to an angle through brush bar 2 after importing puts in place, and then the button bit of push-pull bar 1 fastens the groove end face (seeing Figure 11) of connecting rod 3.
Figure 12 a, b are this utility model second example structure figure.The diagram electric toothbrush comprises handle case, is installed in battery, motor, head toothbrushes and monolateral cam and lever transmission mechanism in the handle case.Its monolateral cam and lever transmission mechanism comprise: be installed in monolateral cam 18 and lever 19-1 on the motor drive shaft, monolateral cam 18 is positioned at the brush bar 2 ' of head toothbrushes, bearing 17 is installed between motor drive shaft and the brush bar 2 ', bearing 17 and brush bar 2 ' tight fit, lever 19-1 is arranged at the side of pieces seat 19 back side axis 19-2, lever 19-1 contacts with the cam surface of monolateral cam 18, and the axis 19-2 of pieces seat 19 and the middle cover of brush bar 2 ' are movingly.Replaceable in this way head toothbrushes can be provided with a drive sleeve on the motor drive shaft in addition, and by this drive sleeve monolateral cam 18 of transmission again, and monolateral cam 18 can arbitrarily insert or breaks away from this drive sleeve along axis direction.
Figure 13 a, b, c are the woollen brush base structure charts of second embodiment.The best semicircular in shape of cross section of the lever 19-1 at pieces seat 19 back sides.The length of the lever 19-1 of pieces seat 19 is greater than the high bit of monolateral cam 18 cam surfaces and the ultimate range between the low bit.
Transmission process with reference to Figure 14,15 couples of second embodiment is described as follows: during the motor rotation, drive monolateral cam 18 unidirectional rotations, the cam surface of monolateral cam promotes the lever 19-1 at pieces seat 19 back sides around the axis 19-2 of pieces seat 19 swing, Figure 14 a, b represent that respectively the high bit of monolateral cam is in the state on the left side and the right, and monolateral as shown in figure 15 cam rotates a circle and promptly promotes the pieces seat and finish a left and right hunting period.
Second embodiment also can be provided with the slack adjuster identical with first embodiment, to compensate the gap that the driving member wearing and tearing cause.The same above appropriate section of first embodiment of other structure of second embodiment repeats no more herein.
Claims (12)
1, a kind of cam and lever transmission electric toothbrush, comprise: handle case, be installed in battery, motor in the handle case, head toothbrushes and drive mechanism, it is characterized in that described drive mechanism is monolateral cam and lever transmission mechanism, monolateral cam is installed on the motor drive shaft, and lever contacts with the cam surface of monolateral cam, and the monolateral cam activation lever of rotation makes the left and right swing of pieces seat of head toothbrushes head.
2, according to described cam of claim 1 and lever transmission electric toothbrush, it is characterized in that: described lever is loaded in the handle case by lever drive axle, lever contacts with the cam surface of monolateral cam, end at lever flexibly connects connecting rod, the push-pull bar of small end connecting band return muscle, the brush bar inwall stop portion tight fit of push-pull bar return muscle and head toothbrushes, the push-pull bar upper end flexibly connects the pieces seat.
3, according to described cam of claim 2 and lever transmission electric toothbrush, it is characterized in that: the thinner main deformation section of return muscle upside setting of described push-pull bar hypomere.
4, according to described cam of claim 3 and lever transmission electric toothbrush, it is characterized in that: the longitudinal cross-section of the main deformation section of described push-pull bar is
Shape.
5, according to described cam of claim 2 and lever transmission electric toothbrush, it is characterized in that: between described connecting rod and the handle case sealing ring is set, between connecting rod and the sealing ring movingly, sealing ring and handle case tight fit, the power transmission shaft of connecting rod afterbody hole and lever movingly.
6, according to described cam of claim 1 and lever transmission electric toothbrush, it is characterized in that: the monolateral cam on the described motor drive shaft is positioned at the brush bar of head toothbrushes, between motor drive shaft and the brush bar bearing is installed, lever is arranged at a side of pieces seat back side axis, and lever contacts with the cam surface of monolateral cam.
7, according to described cam of claim 6 and lever transmission electric toothbrush, it is characterized in that: the cross section semicircular in shape of the lever of pieces seat.
8, according to described cam of claim 6 and lever transmission electric toothbrush, it is characterized in that: the length of the lever of pieces seat is greater than the high bit of monolateral cam cam surface and the ultimate range between the low bit.
9, according to described cam of claim 1 and lever transmission electric toothbrush, it is characterized in that: described monolateral cam and lever transmission mechanism are provided with slack adjuster, this slack adjuster comprises that elasticity uses pole piece more, elasticity is many to be fixed on the motor battery frame with pole piece, and how elasticity is close to motor drive shaft lower end and battery electrode respectively with two stretch sections of pole piece.
10, according to described cam of claim 9 and lever transmission electric toothbrush, it is characterized in that: how described elasticity be with the longitudinal cross-section of pole piece
Shape.
11, according to described cam of claim 1 and lever transmission electric toothbrush, it is characterized in that: adopt button bit fastening formula battery cover, offer square hole on the battery cover, the corresponding button bit snapping of described square hole and handle case inner motor battery carrier end.
12, according to described cam of claim 1 and lever transmission electric toothbrush, it is characterized in that: adopt lever switch, described switch contains the lever type switchboard and elasticity is used pole piece more, how elasticity is close to motor drive shaft lower end and battery electrode respectively with two stretch sections of pole piece, by the many electrodes that break away from or be adjacent to battery with pole piece of switchboard control.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223760 CN2604980Y (en) | 2003-02-20 | 2003-02-20 | Cam and lever driven electric toothbrush |
| DE102004007944A DE102004007944A1 (en) | 2003-02-20 | 2004-02-18 | Electric toothbrush |
| GB0403698A GB2398487B (en) | 2003-02-20 | 2004-02-19 | Electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223760 CN2604980Y (en) | 2003-02-20 | 2003-02-20 | Cam and lever driven electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604980Y true CN2604980Y (en) | 2004-03-03 |
Family
ID=34162976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03223760 Expired - Fee Related CN2604980Y (en) | 2003-02-20 | 2003-02-20 | Cam and lever driven electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604980Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202733A (en) * | 2012-01-17 | 2013-07-17 | 覃国祥 | Novel tartar clearing device |
-
2003
- 2003-02-20 CN CN 03223760 patent/CN2604980Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202733A (en) * | 2012-01-17 | 2013-07-17 | 覃国祥 | Novel tartar clearing device |
| CN103202733B (en) * | 2012-01-17 | 2016-08-03 | 覃国祥 | A kind of novel tooth soil cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |