CN103654987B - Electric toothbrush head and electric toothbrush - Google Patents
Electric toothbrush head and electric toothbrush Download PDFInfo
- Publication number
- CN103654987B CN103654987B CN201210364790.2A CN201210364790A CN103654987B CN 103654987 B CN103654987 B CN 103654987B CN 201210364790 A CN201210364790 A CN 201210364790A CN 103654987 B CN103654987 B CN 103654987B
- Authority
- CN
- China
- Prior art keywords
- brush
- electric toothbrush
- holder support
- eccentric
- brush holder
- 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.)
- Active
Links
Landscapes
- Brushes (AREA)
Abstract
The invention provides a kind of electric toothbrush head, it includes brush holder support (1) and brush (5), power transmission shaft (9) is installed in brush holder support, front end setting-up eccentricity wheel (3) of power transmission shaft, brush is installed on the front end of brush holder support by axis hole attachment means, between brush and described eccentric, movement transforming device is set, move around the round amplitude of oscillation of own torque (7) for the linear movement of eccentric being converted to brush, described movement transforming device includes L-shaped slip cap (8), it is arranged on the prominent axle (5b) at brush back and is arranged on the smooth eccentric shaft (3a) of eccentric front end, the first and second two orthogonal movable span (8a are set in L-shaped slip cap, 8b), first movable span is dynamic with described prominent axle to be coordinated, second movable span is dynamic with described smooth eccentric shaft to be coordinated.Present invention also offers a kind of electric toothbrush, which employs above-mentioned electric toothbrush head.The features such as it is long that this electric toothbrush head has the life-span, and safety is good, smooth running, and noise is low.
Description
Technical field
The present invention relates to electric toothbrush, more particularly, it relates to electric toothbrush head, and use the electric toothbrush of this electric toothbrush head.
Background technology
In electric toothbrush technology field, having multiple technologies scheme to realize electric cleaning, each technical scheme all has different performances in indexs such as cleaning efficiency, cost, reliability, safeties.Electric toothbrush needs toothpaste to coordinate cleaning process during cleaning, toothpaste is made up of abrasive material mixing multiple compounds and organic solvent, accelerate electric toothbrush metal, the abrasion of plastics moving link and chemical corrosion and damage, slightly can shorten the life-span of toothbrush, come off after seriously causing tiny parts damages and cause safety problem in oral cavity.The success or not of the most a electric toothbrush header structure design must obtain balance in safety, cleaning efficiency, life-span, economic index.
By final Clean-power electric toothbrush can be divided into two classes:
The first kind is oscillating mode toothbrush, its power source is for ultrasonic oscillator or drives eccentric continuously run the motor producing centrifugal force and vibrate or produced vibration offer power source by electromagnetic actuation process, such toothbrush is substantially more expensive, abrasive efficiency is difficult to ensure, but movement parts in the oral cavity is few, life-span and reliability have superiority.
Equations of The Second Kind is the toothbrush that motor power directly drags brush, such design is directly driven by motor and realizes rotating or straight reciprocating motion, power acts directly in oral cavity, cleaning efficiency is the highest, and the economy the most relatively first kind has superiority, but the component moved in the oral cavity is more, under the effect of the abrasive material such as toothpaste, collutory and cleaning agent, movement parts excessive wear easily occurs, causes the life-span short, or chemistry be full of cracks causes finding to come off in oral cavity to cause safety problem.Reasonable structure is required higher by this type of toothbrush.
Summary of the invention
The present invention is directed to the life-span short technological deficiency with poor stability that above-mentioned Equations of The Second Kind electric toothbrush exists, it is provided that a kind of life-span length, the electric toothbrush head that safety is good.
The electric toothbrush head that the present invention provides, including brush holder support and brush, power transmission shaft is installed in brush holder support, the front end setting-up eccentricity wheel of power transmission shaft, brush is installed on the front end of brush holder support by axis hole attachment means, between brush and described eccentric, movement transforming device is set, move around the round amplitude of oscillation of own torque for the linear movement of eccentric being converted to brush, described movement transforming device includes L-shaped slip cap, it is arranged on the prominent axle at brush back and is arranged on the smooth eccentric shaft of eccentric front end, the first and second two orthogonal movable spans are set in L-shaped slip cap, first movable span is dynamic with described prominent axle to be coordinated, second movable span is dynamic with described smooth eccentric shaft to be coordinated.
Preferably, between described L-shaped slip cap and described eccentric, clearance compensating spring is set.
Preferably, described axis hole attachment means includes being arranged on the cylindrical installing hole of brush center back position, is arranged on the axis hole of this installing hole bottom centre position, is arranged on the cylindrical convex of brush holder support front end and is installed in the brush rotating shaft of end face center of this convex, described convex inserts in described installing hole, the two dynamic cooperation, described brush rotating shaft and the dynamic cooperation of described axis hole.
Preferably, between described brush rotating shaft and described axis hole, elastic shaft sleeve is set.
Preferably, location and motion control device are set between described brush and brush holder support, described location and motion control device include, at the mating groove that the side of brush is disposed radially, and the pin corresponding with this mating groove being installed on brush holder support, described pin is dynamic with described mating groove to be coordinated, and when brush comes and goes amplitude of oscillation motion around its rotating shaft, guides this brush to do axial back and forth movement along this rotating shaft simultaneously.
Preferably, described mating groove is in the shape of the letter V.
Preferably, described mating groove assumes diamond in shape.
Preferably, the side of described brush is disposed radially rectangle mating groove, arranges pin at brush holder support accordingly, and described pin is dynamic with described rectangle mating groove to be coordinated.
Preferably, the support of plug-in mounting power transmission shaft in described brush holder support, support afterbody arranges buckle and interlocks with brush holder support, and support afterbody is also arranged with salient point, positions during to dock with toothbrush handle.
Present invention also offers a kind of electric toothbrush, including handle, the motor being arranged in handle and battery, and be removably mounted on the head toothbrushes of handle front end, wherein, described head toothbrushes uses the electric toothbrush head described in above-mentioned any one.
The invention has the beneficial effects as follows; owing to all movement parts all use hole axle to coordinate, auxiliary section is face contact, coordinates area big; there is stronger stall wear-resistant, anti-, anti-improper mechanical damage ability, it is thus possible to ensure longer service life and preferable safety.
In the power transformation process swung from motor power to brush, all movement parts are and bond motion continuously, do not occur coordinating--disengaging--moving situation being adhered by, thus without occurring because bonding separates the impact produced, having smooth running, noise is low, and the feature such as concordance is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention electric toothbrush head；
Fig. 2 is the structural representation of its brush；
Fig. 3 is the structural representation of its L-shaped slip cap；
Fig. 4 is its internal structure schematic diagram；
Fig. 5 is its motor process schematic diagram；
Fig. 6 is the structural representation of the brush of second embodiment of the invention electric toothbrush head；
Fig. 7 is the structural representation of the brush of third embodiment of the invention electric toothbrush head.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1-4 shows the electric toothbrush head of first embodiment.As Figure 1-4, first embodiment electric toothbrush head includes brush holder support 1, support 2, eccentric 3 and power transmission shaft 9, power transmission shaft 9 is free to rotate in being arranged on brush holder support 1 by support 2, the front end setting-up eccentricity wheel 3 of power transmission shaft 9, driven by motor power transmission shaft 9 rotates, and then drive eccentric 3 linear movement, brush 5 is installed on the front end of brush holder support 1 by axis hole attachment means, between brush 5 and eccentric 3, movement transforming device being set, moving around the round amplitude of oscillation of own torque (brush rotating shaft) 7 for the linear movement of eccentric 3 being converted to brush 5.
Above-mentioned movement transforming device includes L-shaped slip cap 8, the prominent axle 5b being arranged on brush 5 back and is arranged on the smooth eccentric shaft 3a of eccentric 3 front end, orthogonal first movable span 8a and the second movable span 8b is set in L-shaped slip cap 8, first movable span 8a and prominent axle 5b is dynamic to be coordinated, second movable span 8b and smooth eccentric shaft 3a is dynamic to be coordinated, first movable span 8a is through hole, and the second movable span 8b is blind hole.
Clearance compensating spring 4 it is also equipped with, it is possible to automatically adjust the fit clearance between part, improve transmission efficiency, reduce noise, extend the service life of head toothbrushes further between L-shaped slip cap 8 and eccentric 3.
Above-mentioned axis hole attachment means includes being arranged on the cylindrical installing hole 5c of brush 5 center back position, is arranged on the axis hole 5d of this installing hole 5c bottom centre position, is arranged on the cylindrical convex 1a of brush holder support 1 front end and is installed in the brush rotating shaft 7 of end face center of this convex 1a, convex 1a inserts in installing hole 5c, the two dynamic cooperation, brush rotating shaft 7 and the dynamic cooperation of axis hole 5d.
It also is provided with elastic shaft sleeve further, automatically to adjust the fit clearance between part between brush rotating shaft 7 and axis hole 5d.
Location and motion control device is also set up between brush 5 and brush holder support 1, this location and motion control device include, the mating groove 5e being disposed radially in the side of brush 5, and the pin 6 corresponding with this mating groove 5e being installed on brush holder support 1, pin 6 is dynamic with mating groove 5e to be coordinated, when brush 5 comes and goes amplitude of oscillation motion around brush rotating shaft 7, guide brush 5 to do axial back and forth movement along brush rotating shaft 7 simultaneously.Wherein, mating groove 5e is in the shape of the letter V.
Support 2 can be taken off in being inserted into brush holder support 1, and support 2 afterbody is provided with buckle 2a and coordinates with the button bit 1b of brush holder support 1 afterbody, it is achieved support 2 and brush holder support 1 interlock, and support 2 afterbody is also symmetrically arranged with salient point, positions during to dock with toothbrush handle.
Motor drives eccentric 3 to rotate (linear movement) continuously by power transmission shaft 9, and then make brush 5 come and go amplitude of oscillation motion around brush rotating shaft 7 by the prominent axle 5b in smooth eccentric shaft 3a, L-shaped sliding sleeve 8 and the brush 5 on eccentric 3, during this round amplitude of oscillation is moved, pin 6 and V-shaped mating groove 5e relative motion, guide brush 5 to do axial back and forth movement along brush rotating shaft 7 simultaneously, it is achieved thereby that the three-dimensional motion of brush 5.Fig. 5 shows the motor process of first embodiment electric toothbrush head, including tetra-kinds of states of A, B, C, D: state A is the smooth eccentric shaft 3a state when upper extreme position, now, L-shaped sliding sleeve 8 is in prominent axle 5b end, brush 5 is in middle position, and pin 6 is at the middle part of V-shaped mating groove 5e；Power transmission shaft 9 enters state B after rotating clockwise 90 degree, the most smooth eccentric shaft 3a moves to limit on the right-right-hand limit position, and L-shaped sliding sleeve 8 is in the middle of prominent axle 5b, the pin 6 left part in V-shaped mating groove 5e, brush 5 is dragged to turn right to limit on the right-right-hand limit position, is moved downwardly to lower limit position simultaneously；Power transmission shaft 9 enters state C after again rotating clockwise 90 degree, the most smooth eccentric shaft 3a moves to lower limit position, and L-shaped sliding sleeve 8 is in prominent axle 5b head end, and pin 6 is back in the middle part of V-shaped mating groove 5e, brush 5 is dragged to turn left to middle position, moves up to upper extreme position simultaneously；Power transmission shaft 9 enters state D after again rotating clockwise 90 degree, the most smooth eccentric shaft 3a moves to limit on the left position, L-shaped sliding sleeve 8 returns in the middle of prominent axle 5b, the pin 6 right part in V-shaped mating groove 5e, brush 5 is dragged to be continued to turn left to limit on the left position, moves downwardly to lower limit position simultaneously；After power transmission shaft 9 rotates clockwise 90 degree again, return to state A, circulated with this, it is achieved that brush 57 has been done radial direction reciprocating swing and done axial back and forth movement along rotating shaft 7 the most around the shaft.
Fig. 6 shows the structure of the second brush 11, also depict the pin 6 on brush holder support and brush rotating shaft 7 in figure.As shown in Figure 6, brush 11 differs only in from the brush 5 in first embodiment: the shape of the mating groove of brush side is different, and in first embodiment 1, the mating groove 5e of brush 5 side is V-shaped, and the mating groove 11e of brush 11 side in Fig. 6 is rhombus.Brush 11 is used to substitute the brush 5 in first embodiment, i.e. may make up the second embodiment electric toothbrush head, pin 6 on rhombus mating groove 11e and brush holder support 1 coordinates, it is also possible to when realizing brush 11 7 radial direction back and forth movement around the shaft, do axial back and forth movement along rotating shaft 7 simultaneously.
Above two embodiment all can realize the three-dimensional motion of brush, and the cleaning capacity of the dental plaque on gingiva, food residues thing is obviously improved by this three-dimensional motion, the dirt in teeth space is rejected effect more apparent, and its effect is equivalent to traditional toothpick.Through reality implement checking show that brush controls to be advisable at 0.3 ~ 0.5 millimeter along the movement travel of its rotor shaft direction, cross conference easily cause gingiva by overstimulation, too small to cleaning efficiency promote inconspicuous.
Fig. 7 shows the structure of the third brush 10, this brush 10 is also only that from the difference of the brush 5 in first embodiment: the shape of the mating groove of brush side is different, in first embodiment 1, the mating groove 5e of brush 5 side is V-shaped, and the mating groove 10e of brush 10 side in Fig. 7 is rectangle.Using brush 10 to substitute the brush 5 in first embodiment, i.e. may make up the 3rd embodiment electric toothbrush head, the 3rd embodiment electric toothbrush head, brush 10 can only do two dimensional motion, i.e. can only 7 radially back and forth movements around the shaft.
It is connected to above-mentioned electric toothbrush head the front end of power toothbrush handle, i.e. may make up electric toothbrush.Power toothbrush handle can use existing power toothbrush handle, as long as clamping can structurally be realized with above-mentioned electric toothbrush head, and provide rotatory force can to power transmission shaft 9, at least include motor and battery in usual handle.
Some embodiments of the invention electric toothbrush head at least has the advantage that
1. cleaning efficiency is high, and power conversion efficiency is high, and load capacity has a clear superiority at like product, and the power demand of motor is less than like product；
2. all use hole axle to coordinate because of movement parts, movement parts coordinates area big, and stall wear-resistant, anti-, anti-improper mechanical damage ability are strong, and service life and the security performance of relatively like product have a clear superiority in；Medical science is in principle under the conditions of using 4 minutes every days, it is desirable within three months, to change a brush, the life-span of above-described embodiment brush to be far above this index；
3. in the power transformation process swung from motor power to brush, all movement parts are and bond motion continuously, are adhered by process without separating, finally show smooth running, and noise is low, and concordance is good；
4. it is designed with rocker compensating gear, after abrasion occurs, remains to keep relatively low running noise index；
5. can realize three-dimensional motion according to needing, compared with conventional brush head, brush is many axial back and forth movement, under power permanence condition, cleaning capacity is obviously improved；
6. without the metal machine-tooled component of complex precise, simple in construction, assemble rational in infrastructure, easily realize the unmanned full-automatic assembling intervened, economy has a clear superiority in；
7. structure layout is reasonable, and intensity is high, be eventually exhibited as less than like product design volume, energy conversion efficiency is high, is not only suitable for application of being grown up, because of compact, can be also suitably used for child and use, therefore market fit wide ranges.
Claims (6)
1. an electric toothbrush head, including brush holder support (1) and brush (5) (10) (11), power transmission shaft (9) is installed in brush holder support, front end setting-up eccentricity wheel (3) of power transmission shaft, brush is installed on the front end of brush holder support by axis hole attachment means, between brush and described eccentric, movement transforming device is set, move around the round amplitude of oscillation of own torque (7) for the linear movement of eccentric being converted to brush, it is characterized in that: described movement transforming device includes L-shaped slip cap (8), it is arranged on the prominent axle (5b) at brush back and is arranged on the smooth eccentric shaft (3a) of eccentric front end, the first and second two orthogonal movable span (8a are set in L-shaped slip cap, 8b), first movable span is dynamic with described prominent axle to be coordinated, second movable span is dynamic with described smooth eccentric shaft to be coordinated；Location and motion control device are set between described brush and brush holder support, described location and motion control device include, the mating groove (5e) (11e) being disposed radially in the side of brush, and the pin corresponding with this mating groove (6) being installed on brush holder support, described pin (6) is dynamic with described mating groove (5e) (11e) to be coordinated, when brush comes and goes amplitude of oscillation motion around its rotating shaft (7), guide this brush to do axial back and forth movement along this rotating shaft (7) simultaneously；The support (2) of plug-in mounting power transmission shaft (9) in described brush holder support, support afterbody arranges buckle (2a) and interlocks with brush holder support, and support afterbody is also arranged with salient point, positions during to dock with toothbrush handle.
Electric toothbrush head the most according to claim 1, it is characterized in that: described axis hole attachment means includes being arranged on the cylindrical installing hole (5c) of brush center back position, is arranged on the axis hole (5d) of this installing hole bottom centre position, is arranged on the cylindrical convex (1a) of brush holder support front end and is installed in the brush rotating shaft (7) of end face center of this convex, described convex (1a) inserts in described installing hole (5c), the two dynamic cooperation, described brush rotating shaft (7) and the dynamic cooperation of described axis hole (5d).
Electric toothbrush head the most according to claim 1, it is characterised in that: described mating groove (5e) is in the shape of the letter V.
Electric toothbrush head the most according to claim 1, it is characterised in that: described mating groove (11e) assumes diamond in shape.
Electric toothbrush head the most according to claim 1, it is characterized in that: the side of described brush is disposed radially rectangle mating groove (10e), arranging pin (6) at brush holder support (1) accordingly, described pin (6) is dynamic with described rectangle mating groove (10e) to be coordinated.
6. an electric toothbrush, including handle, the motor being arranged in handle and battery, and is removably mounted on the head toothbrushes of handle front end, it is characterised in that: described head toothbrushes uses the electric toothbrush head described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364790.2A CN103654987B (en) | 2012-09-26 | 2012-09-26 | Electric toothbrush head and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364790.2A CN103654987B (en) | 2012-09-26 | 2012-09-26 | Electric toothbrush head and electric toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103654987A CN103654987A (en) | 2014-03-26 |
| CN103654987B true CN103654987B (en) | 2016-08-03 |
Family
ID=50294567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210364790.2A Active CN103654987B (en) | 2012-09-26 | 2012-09-26 | Electric toothbrush head and electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103654987B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2799505T3 (en) * | 2015-05-20 | 2020-12-18 | Shanghai Shift Electrics Co Ltd | Brush head capable of alternate rotation |
| CN104825243B (en) * | 2015-05-20 | 2016-05-18 | 上海携福电器有限公司 | The brush of reciprocating rotation |
| CN105726151A (en) * | 2016-04-07 | 2016-07-06 | 周建伟 | Electric toothbrush head and electric toothbrush provided with same |
| CN105997286A (en) * | 2016-06-15 | 2016-10-12 | 广东新宝电器股份有限公司 | Brush head of electric toothbrush |
| CN106901858B (en) * | 2017-05-05 | 2020-01-07 | 宁波赛嘉电器有限公司 | Double-head toothbrush head and electric toothbrush provided with same |
| CN111053622A (en) | 2019-04-09 | 2020-04-24 | 上海携福电器有限公司 | Coupling structure for handle and head assembly of electric cleaning appliance |
| CN110251255B (en) * | 2019-04-15 | 2021-06-01 | 江西中聚宏新材料科技有限公司 | Electric toothbrush |
| CN113940776B (en) * | 2021-10-27 | 2023-06-02 | 深圳市千誉科技有限公司 | Self-adaptive control method and electric toothbrush |
| CN114732554A (en) * | 2022-04-19 | 2022-07-12 | 广州嘻嘻三斤设计有限公司 | Electric toothbrush head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19717334C1 (en) * | 1997-04-24 | 1998-07-09 | Braun Ag | Brush attachment for electric toothbrush with interchangeable brush attachment |
| CN2606574Y (en) * | 2002-12-24 | 2004-03-17 | 沃辉有限公司 | Brush head of rotary electric tooth-brush machine |
| CN2636838Y (en) * | 2003-06-07 | 2004-09-01 | 黄达 | Electric toothbrush |
| CN2666372Y (en) * | 2003-12-22 | 2004-12-29 | 沃辉有限公司 | Electric toothbrush head utilizing U-shape swinging bar |
| CN201042465Y (en) * | 2007-06-01 | 2008-04-02 | 叶万青 | Electric tooth-bush head |
| CN202875521U (en) * | 2012-09-26 | 2013-04-17 | 沃辉有限公司 | Electric toothbrush head and electric toothbrush |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239251A1 (en) * | 1992-11-21 | 1994-05-26 | Braun Ag | Electric toothbrush with rotating bristle holder |
| US7266855B2 (en) * | 2002-06-04 | 2007-09-11 | Qingping Zhuan | Electric toothbrush |
| JP4306230B2 (en) * | 2002-11-13 | 2009-07-29 | パナソニック電工株式会社 | electric toothbrush |
-
2012
- 2012-09-26 CN CN201210364790.2A patent/CN103654987B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19717334C1 (en) * | 1997-04-24 | 1998-07-09 | Braun Ag | Brush attachment for electric toothbrush with interchangeable brush attachment |
| CN2606574Y (en) * | 2002-12-24 | 2004-03-17 | 沃辉有限公司 | Brush head of rotary electric tooth-brush machine |
| CN2636838Y (en) * | 2003-06-07 | 2004-09-01 | 黄达 | Electric toothbrush |
| CN2666372Y (en) * | 2003-12-22 | 2004-12-29 | 沃辉有限公司 | Electric toothbrush head utilizing U-shape swinging bar |
| CN201042465Y (en) * | 2007-06-01 | 2008-04-02 | 叶万青 | Electric tooth-bush head |
| CN202875521U (en) * | 2012-09-26 | 2013-04-17 | 沃辉有限公司 | Electric toothbrush head and electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103654987A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103654987B (en) | Electric toothbrush head and electric toothbrush | |
| CN202875521U (en) | Electric toothbrush head and electric toothbrush | |
| CN2614647Y (en) | Moving connectnig rod electric tooth brush | |
| CN201223466Y (en) | Electric toothbrush based on non-contact magnetic-coupling | |
| CN103341666B (en) | A kind of two saw blade electric saw transmission mechanism | |
| CA2677800A1 (en) | Powered toothbrush with two-sided moving head | |
| CN202185797U (en) | Polishing device of dust-absorbing type sander | |
| CN210990864U (en) | Vertical brushing electric toothbrush | |
| CN102720012B (en) | Driving mechanism of level sewing machine | |
| CN207785299U (en) | Electric toothbrush | |
| CN1937363A (en) | Electric vehicle hub motor | |
| CN207559879U (en) | The hollow ultrasonic motor of outer ring output | |
| CN201082539Y (en) | Electric hammer with magnetic force impact mechanism | |
| CN107947630A (en) | The hollow ultrasonic motor of outer ring output | |
| CN1333111A (en) | Electric and appliance with electric/pneumatic impact machine | |
| US8671494B2 (en) | Low friction rotational or translational interface for a mechanical system | |
| CN212326649U (en) | Transmission combination structure of electric toothbrush | |
| CN202688660U (en) | Driving mechanism of normal sewing machine | |
| CN2569975Y (en) | Oscillating grinding head of polishing machine | |
| CN212055723U (en) | Face gear meshing transmission tooth-shaped structure | |
| CN103025269B (en) | For the electrical equipment of individual | |
| CN201071440Y (en) | Coupling of sewing machine | |
| CN2506225Y (en) | Double-lever gearing electric toothbrush | |
| CN220124172U (en) | Electric brush | |
| CN216417387U (en) | Electric toothbrush brush head structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |