CN2274947Y

CN2274947Y - Electric driven tooth brush

Info

Publication number: CN2274947Y
Application number: CN 96249644
Authority: CN
Inventors: 白宗仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-31
Filing date: 1996-12-31
Publication date: 1998-02-25
Anticipated expiration: 2006-12-31

Abstract

The utility model relates to an electric-driven toothbrush, which comprises a casing, a transmission unit, a power unit and a brush unit which are arranged in the casing. In the power unit, a motor of the transmission unit is driven by electric power and a transmission shaft is driven by a driving gear to make straight reciprocating motion. The bottom of a brush shell of the brushing part is sheathed on the upper end of the casing, and the upper part of the casing is provided with two brush holes. The middle part of a brush cover is provided with long strip-shaped bar holes. The upper section of the brushing part bifurcates to form two parallel inner sides which are respectively provided with lever arms facing to lever teeth on different positions from top and bottom. One side of a brush head is provided with a brushing wheel with tooth pitch corresponding to the lever teeth. A brush axle is sheathed in central holes. Inside of the bottom section of a brush rod is engaged with the transmission shaft. The straight reciprocating motion of the transmission shaft drives the brush rod to make reciprocal motion; the lever teeth are engaged with the brushing wheel to make the brushing part with bristles repeatedly rotate forward and backward to complete the task of brushing teeth.

Description

Electric toothbrush

Electric toothbrush has finding more in daily life, because oral hygiene is constantly appealed by odontologist in recent years, therefore, thisly see through electronic mode and reach vibration at high speed, and is to remedy the scarce limit that staff is brushed teeth, particularly important to the child.

At present, electric toothbrush is variation.Substantially, its operating principle all adopts the eccentric connected transmission mechanism of motor output shaft, and its transmission is output as reciprocating, and then makes the brush that links bristle, also for reciprocating, as the 5th, 266, No. 206 patents of the U.S..Certainly also have bristle is designed to many group difformities, material to promote toothbrushing effect, as the 4th, 156, No. 620 patents of the U.S..

And this mode, when the user operate toothbrush was brushed teeth, the careless mobile toothbrush of regular meeting was added moving of brush itself, can make by the brush portion position therefore fuzzy; And the moving of brush, therefore the brush power of its rotation reduce.In addition, because brush moves and must have a section and move distance, therefore, its length is longer, and is rather improper for the child, and in addition, power resources are also desirable not to the utmost.

This utility model purpose is to overcome the scarce limit of above-mentioned electric toothbrush, and a kind of novel electric power toothbrush is provided.

The electric toothbrush that this utility model provides comprises:

One housing, its inner ccontaining driving section and a power part, and be the sealing shape with screwing togather at the bottom of the shell, the motor that supplies power to the driving section of this power part, and motor output to drive a power transmission shaft through travelling gear be straight reciprocating motion;

One brush portion, by a brush shell, a brush holder support and two brush header combination of a brush lid and clamping therebetween form; The bottom of brush portion is hollow tubular and is sleeved on the housing upper end that there are two brush holes its top; Brush covers the corresponding brush portion of size, can be chimeric mutually, and the prominent brush tenon of establishing in its stage casing is corresponding to the then fixing prominent two brush axles of establishing in place, brush hole; The end intrasegmental part of brush holder support has the hole chimeric with power transmission shaft, and then there is a rectangular bar hole in the stage casing corresponding to brush tenon place, and the epimere bifurcated forms two parallel lever arms, and the lever arm inboard respectively has one section to be the bar tooth of diverse location subtend up and down; Brush then is a brush holder, and a side has a brush wheel, and its tooth pitch is corresponding to the bar tooth, and central hole is sleeved on the brush axle, and plurality of holes is arranged on the brush holder, and bristle or its equivalent are housed on the hole;

The straight reciprocating motion of power transmission shaft drives brush holder support and back and forth is synchronized with the movement, and bar tooth engagement brush wheel makes brush holder be forward and reverse repetitiousness and rotatablely moves.

Described driving section: a motor is set in the below in the drive shell, motor has the defeated motor output shaft that links of an output gear, and the first half is installed a travelling gear vertically upward in the drive shell, and meshes with output gear, and the axis hole side of travelling gear is established an eccentric orfice, and eccentric orfice sets one

The type draft arm, the other end of draft arm is embedded at the hole that is provided with on the power transmission shaft.

Described power part is a strip, and two groups of subtends slightly are the space content that the curved fin of arc forms and put battery, and each spatial upper and lower has the superior pole piece of conduction and reed down respectively, and the power part upper lateral has a charging hole and a conducting strip, also can be for connecting charger.

There is a switch base hole drive shell top of described driving section, and establish a transmission cover that covers with it, a switch cover hole is stamped in this transmission, the both sides, below of transmission cover then are provided with dipolar switch shrapnel, and overlapping in centre, switch plunger is embedded at the switch cover hole, and switch column is plugged with one section bigger post of external diameter and dashes forward, switch plunger cover unification switching knob, the vertical prominent switch tenon of establishing on the end face of switching knob.

Described switch tenon is passed and is rotated by the switch cover that is located on the housing outer wall.

Below in conjunction with accompanying drawing, embodiment further describes this utility model.

Description of drawings:

Fig. 1: housing of the present utility model, power part and driving section three-dimensional exploded view.

Fig. 2: brush portion three-dimensional exploded view of the present utility model.

Fig. 3: power part three-dimensional exploded view of the present utility model.

Fig. 4: driving section of the present utility model three-dimensional exploded view.

Fig. 5: housing of the present utility model, power part and combination back, driving section profile.

Fig. 6: brush portion generalized section of the present utility model.

Fig. 7: switch start profile of the present utility model.

Housing 1 power part 2 driving sections 3

At the bottom of 11 shells of brush portion shell chambers 4 12

Shell hole 13 switch holes, 14 switch housings 15

Switch cover 16 elastic rings 121 fins 21

22 times reeds of superior pole piece, 23 charging holes 24

Conducting strip 241 drive shells 31 motors 32

Partition 311 in travelling gear 33 transmission covers 34

End partition 312 driving holes 313 driving hole seats 314

Locking holes seat 315 embedded hole seats 316 output gears 321

Conductive tabs 322 axles 331 eccentric orfices 332

Draft arm 333 power transmission shafts 334 drive sleeve 335

Waterproof jacket 336 switch cover holes 341 switch stick harnesses 342

Switching knob 343 switch shrapnels 344 posts prominent 3421

Switch tenon 3431 brush shells 41 brushes cover 42

Brush holder support 43 brushes 44 brush holes 42

Brush tenon 421 brush axles 422 bar holes 431

Lever arm 432 bar teeth 433 brush holders 441

442 holes 443 of brush wheel

As shown in Figure 1, this electric toothbrush is combined by a housing 1, one power part 2, one driving sections 3, one brush portions 4 (Fig. 2).

Wherein, housing 1 is rectangular hollow form, and 11 spaces, inner shell chamber (because of projection angle does not show) is for ccontaining power part 2 and driving section 3, at the bottom of one a section screw thread of bottom and the shell 12 screw threads in conjunction with and be the sealing shape, and establish an elastic ring 121 with waterproof, above-mentioned is known technology, will not give unnecessary details.The top of housing cooperates the shape of driving section 3 to be the gesture of convergent, and there is a shell hole 13 upper end, and stretch out for the power transmission shaft 334 of driving section 3 in shell hole 13.In addition, on housing 1, offer a switch hole 14, and be furnished with a switch housing 15 and cover, establish a switch cover 16 correspondences again and be embedded at switch housing 15 in it.For the location of power part 2 and driving section 3, at the shell chamber of housing 1 11 inwalls, rib tenon or cell body are set, these also are known technology, will not give unnecessary details.

Power part 2 also is a strip, see also Fig. 1 and Fig. 3, slightly be the curved fin 21 of arc by two groups of subtends and form rectangular space, for placing battery, at each space upper and lower, the superior pole piece 22 that conduction is housed respectively reaches reed 23 down, and 2 upper lateral have a charging hole 24 and a relevant conducting strip 241 in the power, for connecting charger and is battery charge, its below then has with 12 chimeric tongue-and-grooves at the bottom of the shell etc.

Driving section 3 is the shuttle shape, and is outer through the internal diameter corresponding to housing 1, in the ccontaining housing in driving section, see also Fig. 1 and Fig. 4, there is the drive shell 31 of a semicircular in shape this driving section 3, and partition 311 was divided into two halves open space up and down with it during its central authorities were slotted, and an end partition 312 is arranged at the bottom.Its then ccontaining motor 32 in below, motor output shaft is connected in an output gear 321, and join by the superior pole piece 22 of two conductive tabs 322 that are locked on drive shell 31 with power part 2, as power source, like this, when the motor on the end partition 312 of middle partition 311 belows that are placed in drive shell 31 was located, output gear 321 can be passed by the fluting of middle partition 311.

In addition, drive shell 31 tops are provided with a driving hole 313, and driving hole below one side be provided with a driving hole seat 314, one locking holes seats 315 and embedded hole seat 316 for after the related elements chatted link.

And above-mentioned output gear 321, Vertical Meshing one travelling gear 33, travelling gear are connected in driving hole seat 314 by an axle 331, and axle center one side of travelling gear 33 has an eccentric orfice 332, and this eccentric orfice 332 is set one and is The draft arm 333 of type, and draft arm one end is embedded at the hole of power transmission shaft 334, and power transmission shaft 334 belows then are sleeved on a drive sleeve 335, and the top then passes from a waterproof jacket 336, and drive sleeve 335 embeds and is sleeved in the driving hole 313.

In addition, superjacent air space in middle partition 311, one transmission cover 34 is set, chimeric by above-mentioned locking holes seat 315 and embedded hole seat 316, and the appropriate location of this transmission cover 34, offer a switch cover hole 341, and set a switch stick harness 342, and the surrounding edge of this switch stick harness 342 has one section arc column prominent 3421 that external diameter is bigger, simultaneously, by therebetween hole cover unification switching knob 343,343 vertical outstanding switch tenons 3431 of this switching knob, this switch tenon are embedded at the set embedding hole of switch cover 16 of housing 1.Simultaneously, in the both sides, below of transmission cover 34, a switch shrapnel 344 is set respectively, and in horizontal direction, and its overlapped part is corresponding to above-mentioned switch stick harness 342, like this, when post prominent 3421 presses down the switch shrapnel 344 that is positioned at the top, then be contact and conducting, otherwise, when switch stick harness 342 rotates, and the bigger post of external diameter prominent 3421 is not when pushing down the switch shrapnel 344 of top, then two switch shrapnels, 344 separated attitudes and open close.

See also Fig. 2, brush portion 4 covers 42 by a brush shell 41, one brushes, and a brush holder support 43 of double team two brushes 44 combines.

Wherein, the below of brush shell 41 is the pipe body, and its size is corresponding to the upper end of housing 1, and binding with it, and the groove shown in the figure is corresponding to the tenon body (being known technology) or other the binding positioner of housing 1; And cover 42 bindings in order to enable and to brush, be provided with rib tenon, cell body etc., in order to combination.Section then has two brush holes 411 for placing brush 44 thereon.

Brush covers 42 size corresponding to brush shell 41, and links with it, and in the central, the prominent brush tenon 421 of establishing is set the location for brush holder support 43, and the top is corresponding to 411 places, brush hole of brush shell 41, and the fixing prominent two brush axles 422 of establishing are for setting brush 44.

Brush holder support 43 is the rectangular body of rod, the hole of bottom center embeds the location for power transmission shaft 334, then there is a rectangular bar hole 431 middle section, the bar hole is passed through for brush tenon 421, and its upper end then is branched into two parallel lever arms 432, and respectively is provided with one section bar tooth 433 respectively at lever arm epimere or hypomere, even right-hand lever arm 432 epimeres have bar tooth 433, and then 432 of left lever arms have bar tooth 433 for hypomere.

Brush 44 is a discoid brush holder 441, the fixedly connected brush wheel 442 of one side central authorities, the tooth pitch of this brush wheel 442 is corresponding to bar tooth 433 and be engaged with, have some holes 443 on the brush holder 441, wherein bristle or its equivalent (this is known technology) of bunchy planted in embedding.

And when when combination, brush shell 41 covers 42 double team brush holder supports 43 with brush, and is sealing state, as with the ultrasound wave involution.

Please consult 1 again to Fig. 4, during this utility model combination, be about to driving section 3 and insert in the housing 1 from housing 1 bottom, and also power part 2 is inserted the bottom of housing 1, and elastic ring 121 and drain pan 12 be locked on housing 1 bottom, and switch housing 15 is stuck on the housing 1, and switch cover 16 is covered on the switch housing 15; When brush portion 4 was sleeved on housing 1 upper end by brush shell 41, the bottom of brush holder support 43 also was sleeved on the power transmission shaft 334, promptly finishes combination, and the profile after its combination is respectively as Fig. 5 and Fig. 6.

This utility model, when when moving switch cover 16, then as shown in Figure 7, switch tenon 3431 in it rotates because of stressed, and post is changeed for prominent 3421 times, and switch shrapnel 344 is contacted because of pressurized, and starter motor 32, then its output gear 321 makes its rotation because of engaged transmission gear 33, and sets with it because of draft arm 333, and draft arm 333 shifts and drive power transmission shaft 334 straight reciprocating motions because of off-centre; And then the brush holder support 43 of brush portion 4 is also linearly moved back and forth; And because 433 straight reciprocating motions of bar tooth, thus related make with the brush wheel 442 of its engagement together with 441 one-tenth of brush holders circular motion repeatedly.Because motor 32 rotating speeds are very high, like this so brush holder 441 serve as that axle is quick forward and reverse rotation with brush axle 422, just can make to plant and rotate and finish the operation of outwash tooth in the bristle of brush holder 44 1 or other equivalents.

And power part 2 as shown in Figure 3, except can be 21 ccontaining aneroid battery of fin, but also external charge device be that rechargeable battery such as nickel-cadmium cell charge via charging hole 221, so, can eliminate environmental issues such as refuse battery pollution.

When using this utility model to brush teeth, except the rotating outwash tooth that can make fixed point, and brush portion 4 can separate with housing 1, is many brush portions 4 shared housings 1 so that change brush portion; Power part 2 can charge, and this is that known electric toothbrush is incomparable.

Claims

1. electric toothbrush is characterized in that comprising:

2. by the described electric toothbrush of claim 1, it is characterized in that described driving section: a motor is set in the below in the drive shell, motor has the defeated motor output shaft that links of an output gear, the first half is installed a travelling gear vertically upward in the drive shell, and mesh with output gear, and the axis hole side of travelling gear is established an eccentric orfice, and eccentric orfice sets one

3. by the described electric toothbrush of claim 1, it is characterized in that described power part is a strip, two groups of subtends slightly are the space content that the curved fin of arc forms and put battery, each spatial upper and lower has the superior pole piece of conduction to reach reed down respectively, the power part upper lateral has a charging hole and a conducting strip, also can be for connecting charger.

4. by the described electric toothbrush of claim 2, there is a switch base hole drive shell top that it is characterized in that described driving section, and establish a transmission cover that covers with it, a switch cover hole is stamped in this transmission, and the both sides, below of transmission cover then are provided with dipolar switch shrapnel, and overlapping in centre, switch plunger is embedded at the switch cover hole, switch column is plugged with one section bigger post of external diameter and dashes forward, switch plunger cover unification switching knob, the vertical prominent switch tenon of establishing on the end face of switching knob.

5. by the described electric toothbrush of claim 4, it is characterized in that described switch tenon is by being located at the switch cover passing on the housing outer wall and rotating.