CN2745531Y - Electric straight brushing type toothbrush - Google Patents
Electric straight brushing type toothbrush Download PDFInfo
- Publication number
- CN2745531Y CN2745531Y CN 200420069075 CN200420069075U CN2745531Y CN 2745531 Y CN2745531 Y CN 2745531Y CN 200420069075 CN200420069075 CN 200420069075 CN 200420069075 U CN200420069075 U CN 200420069075U CN 2745531 Y CN2745531 Y CN 2745531Y
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- China
- Prior art keywords
- gear
- brush
- type toothbrush
- fixed
- brushing type
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- Expired - Fee Related
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Abstract
The utility model discloses an electric straight brushing type toothbrush, comprising a brush head (42), a transmission speed-reducing device, a motor (2), a battery (30), a switch (28), and an outer shell. The electric straight brushing type toothbrush also comprises a connecting shaft sleeve (22) which can rotate inside the outer shell. The brush handle rod (21) of the brush head (42) passes through one end of the outer shell to be connected on one end of the connecting shaft sleeve (22) in a detachably mode, and the other end of the connecting shaft sleeve (22) is fixedly connected with the gear shaft (10) of the transmission speed-reducing device. The transmission speed-reducing device is a movable shaft gear train which makes the brush head (42) rotate 360 degrees, or is a fixed shaft gear train which makes the brush head (42) be in circular arc reciprocating swing within 180 degrees . The electric straight brushing type toothbrush has small axial resistance when brushing teeth, and the brush head is convenient to be replaced. The transmission speed-reducing device of the electric straight brushing type toothbrush has simple structure and small volume. The electric straight brushing type toothbrush has good working reliability and long service life.
Description
Technical field
This utility model relates to a kind of toothbrush, especially a kind of electronic straight brushing type toothbrush.
Background technology
Along with popularizing of scientific and technological knowledge, people more and more pay attention to brushing teeth with the mode of straight brush, thus, visualize some electronic straight brushing type toothbrushes.Generally form by brush, transmission decelerating device, motor, battery, switch and shell, the axle of actuating device directly is connected with the brush holder bar of brush, and transmission decelerating device, then generally need brush in 180 °, back and forth to adopt the four-bar mechanism transmission to add geared system under the situation of arc swing and slow down, or need brush do to adopt under the situation of 360 ° of rotations in the fixed shaft gear train a plurality of big pinion successively transmission slow down.They have the following disadvantages: when one, brushing teeth, brush is bigger to the axial resistance that transmission decelerating device produces, thereby increases energy consumption and cost of manufacture (as owing to increased the complexity of bearing arrangement, needing to adopt the more expensive thrust bearing of price).Two, the replacing of brush more loaded down with trivial details (as need down over shell, lay down connector etc.).Three, the structure of its transmission decelerating device is complicated, and its processing is installed more loaded down with trivial details, and volume is big, and the size of shell is increased; The less reliable of toothbrush work influences service life of toothbrush; Its gear ratio of fixed shaft gear train that adopts when in addition, needing 360 ° of rotations is less.Four, when brush is done 360 ° of rotations, bristle easy wound chamber and gingiva.
The utility model content
The technical problems to be solved in the utility model is, overcomes above the deficiencies in the prior art, and axial resistance was little when a kind of brushing teeth was provided, be convenient for changing brush, its transmission decelerating device is simple in structure, and volume is little, its functional reliability is good, the electronic straight brushing type toothbrush of long service life.
Technical solution of the present utility model is, a kind of electronic straight brushing type toothbrush with following structure is provided, it comprises brush, transmission decelerating device, motor, battery, switch and shell, it also comprises the connecting bushing that can rotate in the enclosure, the end that the brush holder bar of described brush passes shell removably is connected an end of connecting bushing, and the other end of connecting bushing is fixedlyed connected with the gear shaft of described transmission decelerating device; Described transmission decelerating device is instigated the dynamic gear train of 360 ° of brush rotations or is made brush be the fixed shaft gear train of circular arc reciprocally swinging in 180 °.
After adopting above structure, this utility model is compared with the electronic straight brushing type toothbrush of prior art, has the following advantages:
One, because the setting of connecting bushing, overcome the axial resistance that brush produces transmission decelerating device when brushing teeth, thereby energy consumption and cost of manufacture (, can adopt low-cost radial bearing to replace thrust bearing) have been reduced as owing to reduced the complexity of bearing arrangement.
Two, owing to the setting of connecting bushing, the brush holder bar adopts detachable the connection with axle sleeve, so the replacing of brush is very convenient quick.
Three, since transmission decelerating device when need brush when making reciprocally swinging, adopt fixed shaft gear train maybe when needing brush to do 360 ° of rotations, to adopt dynamic gear train (sun and planet gear), so, its transmission decelerating device simple in structure, compact, its processing is easy for installation, and volume is little, has dwindled the size of shell; Simultaneously, improve the reliability (functional reliability is good) of electronic straight brushing type toothbrush work, prolonged its service life; When adopting dynamic gear train to make head toothbrushes do 360 ° of rotations, its gear ratio increases.
As improvement, can set up guard shield in the outside of the bristle of brush, thereby protection oral cavity and gingiva are not subjected to the injury of bristle when brush is done 360 ° of rotations.
Description of drawings
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Fig. 1 is the structural representation of a kind of embodiment of this electronic straight brushing type toothbrush.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of the another kind of embodiment of this electronic straight brushing type toothbrush.
Fig. 4 is the B-B cutaway view of Fig. 3.
The specific embodiment
In Fig. 1, Fig. 2, brush 42 is made up of brush holder 15, bristle 14 and brush holder bar 21.Bristle 14 evenly is arranged on the excircle of 360 ° of brush holders, and brush holder 15 and brush holder bar 21 are an integral body.Brush holder bar 21 is cone (also can be gengon, ellipsoid etc.).
Shell is a hollow circular cylinder, and shell is made up of end cap 16, upper shell 19 and lower house 1.End cap 16 top center are provided with the hole (unmarked among the figure) that matches with brush holder bar 21 profiles, and end cap 16 is threaded (unmarked among the figure) with upper shell 19 usefulness, and upper shell 19 is connected with lower house 1 usefulness screw thread 4.
In the outside of bristle 14 guard shield 13 is arranged, guard shield 13 generally is 180 ° the area that semicircular arc covers brush 42 excircles.The lower end of guard shield 13 is fixed on the shell upper end.
The two bearings at cylindrical connecting bushing 22 two ends about being enclosed within it is loaded in the upper shell 19 23 assosting effects that prevent the two bearings axial motion of sleeve.The outer ring 17,24 of described upper and lower bearing is a tight fit in the upper shell 19, and its inner ring 20,26 is a tight fit on the cylindrical step of upper and lower end of connecting bushing 22, is needle roller 18,25 between the inside and outside circle 20,17 and 26,24.The center of connecting bushing 22 is provided with the hole that matches with brush holder bar 21 and match with following gear shaft 10, and two holes can not communicate but with one heart.The top (being end cap 16) that the brush holder bar 21 of described brush 42 passes shell is seated in the last centre bore 12 of connecting bushing 22 (during use because axial force is arranged, so brush 42 can not become flexible).Certainly, brush holder bar 21 and connecting bushing 22 also can adopt other dismountable connected mode, connect as left-hand thread, insert the back and fasten etc. with detaining to stumble.
For making 360 ° of brush 42 rotations, the transmission decelerating device of present embodiment adopts dynamic gear train.Its concrete structure is as follows: the centre bore 5 of tie-rod 29 is fixed on the motor shaft 3, two semiaxis 6 equidistant two ends that are fixed on tie-rod 29, two planetary gear 7 (devices that anti-its axial float is arranged that are movably combined on the semiaxis 6, as jump ring, but not shown) the outside, ring gear 27 engagements with the lower house 19 lower end inner chambers that are fixed on shell, simultaneously, the inboard of two planetary gears 7 and central gear 8 engagements, central gear 8 is that an integral body is (for changing the needs of tooth with gear shaft 10, but the wheel toothed portion lining of central gear 8 cover 9, certainly, also can not establish lining 9), gear shaft 10 is fixed in 22 times centre bores of connecting bushing 11 (can adopt key, concavo-convex, structures such as side's tenon are fixed).
Fig. 3, Fig. 4 illustrate the another kind of embodiment of this electronic straight brushing type toothbrush.Compare with above embodiment, most of structure is identical, and its difference is:
In Fig. 3, Fig. 4, the bristle 14 of described brush 42 evenly be arranged on brush holder 15 1/2nd or less than on 1/2nd the excircle.Guard shield 13 can not be established in the outside of the bristle 14 of the brush 42 of present embodiment.
For making brush 42 be the circular arc reciprocally swinging in 180 °, the transmission decelerating device of present embodiment adopts fixed shaft gear train.Its concrete structure is as follows: (available cover 41 is with gear wheel 32 axial location to be fixed on gear wheel 32 engagements of pinion 31 and gear shaft 33 1 ends that are fixed on (not shown) on the case bushing that is installed on pressing plate 37 and motor 2 on the motor shaft 3; Certainly, also available awl keys etc. are the location axially), the other end of gear shaft 33 and cam 34 are an integral body, cam 34 is enclosed within the endoporus of shape frame 35, shape frame 35 is an integral body with tooth bar 36, and tooth bar 36 is contained in the intravital guide groove 39 of shell, and blocks with pressing plate 37 and screw 38, make its only move left and right in guide groove 39, with gear shaft 10 be holistic gear 40 and tooth bar 36 engagements.
People select shuttle-type or revolving electronic straight brushing type toothbrush according to the living habit of oneself.When using revolving electronic straight brushing type toothbrush, press electric switch 28 and connect motor 2 and battery 30, motor shaft 3 drives tie-rod 29 rotations, make planetary gear 7 around semiaxis 6 axis rotations through two semiaxis 6, revolve round the sun around ring gear 27 (maintaining static moving) again, and drive central gear 8 and do to slowly run, gear shaft 10 drives connecting bushing 22 again and rotate around axis, and connecting bushing 22 drives brush holder bars 21, brush holder 15, bristle 14 (being brush 42) and rotates.
When using shuttle-type electronic straight brushing type toothbrush, press electric switch 28 and connect motor 2 and battery 30, motor shaft 3 drives pinion 31, gear wheel 32, gear shaft 33, cam 34 rotations, cam 34 drives that shape frames 35 move back and forth with tooth bar 36, tooth bar 36 and gear 40 engagements and driven gear axle 10, connecting bushing 22 are circular arc around axis and make reciprocally swinging, and connecting bushing 22 drives brush holder bars 21, brush holder 15, bristle 14 (being brush 42) and is circular arc and makes reciprocally swinging.
Claims (5)
1, a kind of electronic straight brushing type toothbrush, it comprises brush (42), transmission decelerating device, motor (2), battery (30), switch (28) and shell, it is characterized in that: it also comprises the connecting bushing (22) that can rotate in the enclosure, the end that the brush holder bar (21) of described brush (42) passes shell removably is connected an end of connecting bushing (22), and the other end of connecting bushing (22) is fixedlyed connected with the gear shaft (10) of described transmission decelerating device; Described transmission decelerating device is instigated the dynamic gear train of 360 ° of brush (42) rotations or is made brush (42) be the fixed shaft gear train of circular arc reciprocally swinging in 180 °.
2, electronic straight brushing type toothbrush according to claim 1, it is characterized in that: described dynamic gear train refers to, the centre bore of tie-rod (29) is fixed on the motor shaft (3), the equidistant two ends that are fixed on tie-rod (29) of two semiaxis (6), two planetary gears (7) and ring gear (27) engagement that is fixed on shell inner cavity that are movably combined on the semiaxis (6), and mesh with central gear (8) simultaneously, central gear (8) is an integral body with said gear axle (10).
3, electronic straight brushing type toothbrush according to claim 1, it is characterized in that: described fixed shaft wheel means, be fixed on pinion (31) and gear wheel (32) engagement that is fixed on gear shaft (33) one ends on the case bushing that is installed on pressing plate (37) and motor (2) on the motor shaft (3), the other end of gear shaft (33) and cam (34) are an integral body, cam (34) is enclosed within the endoporus of shape frame (35), shape frame (35) is an integral body with tooth bar (36), tooth bar (36) is contained in the intravital guide groove of shell (39), and block with pressing plate (37) and screw (38), make its only move left and right in guide groove (39), with gear shaft (10) be holistic gear (40) and tooth bar (36) engagement.
4, electronic straight brushing type toothbrush according to claim 1 is characterized in that: described connecting bushing (22) can rotate in the enclosure and refer to, respectively is provided with a rolling bearing at the two ends of connecting bushing (22).
5, electronic straight brushing type toothbrush according to claim 1 is characterized in that: it also comprises the guard shield (13) of being located at bristle (14) outside, described guard shield (13) semicircular in shape, and the one end is fixed on the upper end of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069075 CN2745531Y (en) | 2004-10-26 | 2004-10-26 | Electric straight brushing type toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069075 CN2745531Y (en) | 2004-10-26 | 2004-10-26 | Electric straight brushing type toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745531Y true CN2745531Y (en) | 2005-12-14 |
Family
ID=35582118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420069075 Expired - Fee Related CN2745531Y (en) | 2004-10-26 | 2004-10-26 | Electric straight brushing type toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745531Y (en) |
-
2004
- 2004-10-26 CN CN 200420069075 patent/CN2745531Y/en not_active Expired - Fee Related
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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 |