CN2607971Y - Composite driving motor-driven toothbrush head - Google Patents
Composite driving motor-driven toothbrush head Download PDFInfo
- Publication number
- CN2607971Y CN2607971Y CN 03223921 CN03223921U CN2607971Y CN 2607971 Y CN2607971 Y CN 2607971Y CN 03223921 CN03223921 CN 03223921 CN 03223921 U CN03223921 U CN 03223921U CN 2607971 Y CN2607971 Y CN 2607971Y
- Authority
- CN
- China
- Prior art keywords
- hair seat
- bulb
- toothbrush head
- power transmission
- transmission shaft
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a combined electric driving toothbrush head, and comprises a toothbrush head rod and a brushing base installed inside a round head of the toothbrush head rod. The utility model is characterized in that the driving shaft is installed inside the toothbrush head rod. A bearing is installed between the driving shaft and the toothbrush head rod. A front ball head and a rear ball head are arranged on the driving shaft. A long groove is arranged on one side of the brushing base, a driving hole is arranged on the bottom of the long groove. When rotating the driving shaft, the rear ball head and the front ball head respectively cooperate with the long groove and driving hole of the brushing base to drive the brushing base swinging forward and backward and jumping in axis direction. An eccentricity double-ball structure is adopted between the driving shaft and the brush head, the rotation of the driving shaft makes the brushing base swinging forward and backward and jumping in axis direction in combined movement, which obviously improves the teeth brushing effect. The utility model has the advantages of simple structure, low cost, easy production and high driving effect.
Description
Technical field
This utility model relates to the electric toothbrush parts, specifically is a kind of compound transmission electric toothbrush head that is used for electric toothbrush.
Background technology
Head toothbrushes is the critical piece of electric toothbrush, and common structure is that crank shaft passes through the elongated slot transmission hair seat on the hair seat at present, and the hair seat is swung back and forth around its axis.The shortcoming of this structure has only the single movement of swing with regard to being mao motion of seat, makes toothbrushing effect owe desirable.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, and a kind of compound transmission electric toothbrush head is provided, and this structure was both simple, hair seat is produced around self axis swing back and forth and along the moving compound motion of the axial upper and lower string of self axis.
The compound transmission electric toothbrush head of this utility model is to realize like this, it comprises the brush bar and is installed on the interior hair seat of brush bar round end, it is characterized in that: in the brush bar power transmission shaft is housed, between power transmission shaft and the brush bar bearing is installed, power transmission shaft is provided with back bulb and two bulbs of preceding bulb, and hair seat side is provided with elongated slot, and driving hole is arranged at the bottom of described elongated slot, bulb, preceding bulb cooperate with elongated slot, the driving hole of hair seat respectively after the rotating drive shafts, drive the hair seat and swing back and forth and axial motion.
This utility model head toothbrushes adopts eccentric pair of ball head structure between power transmission shaft and brush, the power transmission shaft energy of rotation produces around self axis hair seat and swings back and forth and along the moving compound motion of the axial upper and lower string of self axis, significantly improved toothbrushing effect.It is simple in structure, and cost is low, and noise is little, and is easy to manufacture, the transmission efficiency height.
Description of drawings
Fig. 1 a, b are the overall structure sketch maps of this electric toothbrush head;
Fig. 2 is that two bulbs of its power transmission shaft are in the state diagram the during below of brush rod axis;
Fig. 3 is the state diagrams of two bulbs of its power transmission shaft when being in the left of brush rod axis;
Fig. 4 is in the state diagram of brush rod axis when the most right-hand for two bulbs of its power transmission shaft;
Fig. 5 a, b, c are its mao holder structure figure;
Fig. 6 a, b, be its transmission shaft structure figure;
Fig. 7 is the drive connection sketch map of this electric toothbrush head.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further specified.
Electric toothbrush head shown in Fig. 1 a, b mainly comprises hair seat 1, bearing 2, power transmission shaft 3 and brush bar 4.Hair seat 1 is movably installed in brush bar 4 round ends, and dress power transmission shafts 3 in the brush bar 4 are installed bearing 2 between power transmission shaft 3 and the brush bar 4, bearing 2 and brush bar 4 tight fits, with power transmission shaft 3 movingly.Power transmission shaft 3 upper ends are provided with back bulb 3-1 and two bulbs of preceding bulb 3-2, hair seat 1 side is provided with elongated slot 1-1, driving hole 1-2 is arranged at the bottom of described elongated slot 1-1, wherein hair seat 1 and brush bar 4 are movingly, power transmission shaft 3 and hair seat 1 are movingly, and the back bulb 3-1 of power transmission shaft 3 is corresponding with the elongated slot 1-1 of hair seat 1, and the preceding bulb 3-2 of power transmission shaft 3 is corresponding with the driving hole 1-2 of hair seat 1.
During power transmission shaft 3 rotations, its back bulb, preceding bulb cooperate with elongated slot, the driving hole of hair seat 1 respectively, drive the hair seat and swing back and forth and axial motion.State when Fig. 1 represents that two bulbs of power transmission shaft 3 are in brush bar 4 axis the tops, Fig. 2 represent that two bulbs of power transmission shaft 3 are in the state the during below of brush bar 4 axis.Wherein, S---the eccentric throw of preceding bulb 3-2, S1---the eccentric throw of back bulb 3-1, the half-breadth of T---preceding bulb 3-2 and hair seat 1, T1---a back bulb 3-1 and mao half-breadth of seat 1.
Fig. 3 is the state diagrams of two bulbs of power transmission shaft 3 when being in the left of brush bar 4 axis.When hair seat 1 swung to extreme position clockwise, the angle of the line of centres of back bulb 3-1, preceding bulb 3-2 and brush bar 4 axis was A.
Fig. 4 is that two bulbs of power transmission shaft 3 are in the state diagram of brush bar 4 axis when the most right-hand.Hair seat 1 counter-clockwise swing is during to extreme position, and the angle of the line of centres of back bulb 3-1, preceding bulb 3-2 and brush bar 4 axis is A.Usually, the unidirectional pendulum angle A of hair seat 1 is the 1-35 degree, and the swing maximum angle of hair seat 1 is 2A, i.e. the 2-70 degree.
Fig. 5 a, b, c are hair seat 1 structure charts.Wherein, 1-1---elongated slot, 1-2---circular hole, 1-3---the horizontal long slot bore that is designed to.Hair seat 1 side is provided with elongated slot 1-1, is provided with driving hole 1-2 in the bottom of described elongated slot 1-1.Described driving hole 1-2 can be a circular hole, and one can be the long slot bore 1-3 shown in Fig. 5 b.
Above-mentioned power transmission shaft 3 structures are with reference to Fig. 6, and power transmission shaft 3 upper ends are provided with back bulb 3-1 and two bulbs of preceding bulb 3-2, and two bulbs are eccentric settings, and the axis of the centrage of two bulbs and power transmission shaft 3 forms an angle.
Work process of the present utility model is as follows:
Power by handle output drives power transmission shaft 3 unidirectional rotations, back bulb 3-1 on the power transmission shaft 3 drives hair seat 1 axis around hair seat 1 by the long slot bore 1-1 on the hair seat 1 and swings back and forth, it is moving along the axial upper and lower string of hair seat 1 axis that simultaneously preceding bulb 3-2 then drives mao seat 1 by the driving hole 1-2 on the hair seat 1, and drive connection is seen sketch map 7.
The angle of hair seat 1 swing depend on the eccentric throw S1 of back bulb 3-1 and back bulb 3-1 and hair seat 1 axis apart from T1.Be that S1 is big more, T1 is more little in theory, then the angle of hair seat 1 swing is big more.The swing maximum angle of this utility model hair seat 1 is 2A, i.e. the 2-70 degree.
The eccentric throw S of bulb 3-2 before the upper and lower string quantity of motion of hair seat 1 depends on, promptly string quantity of motion is 2S.When T1, S1 one timing, T is big more, and then S is big more, and when T=T1, then the front and back bulb overlaps the S=S1 (see figure 2).The center of preceding bulb 3-2 on the power transmission shaft 3 is to the axially string quantity of motion up and down of the half-breadth T decision hair seat 1 of hair seat 1, usually T value less than back bulb 3-1 and hair seat 1 axis apart from T1, and greater than 0.1mm.
The effect that the elongated slot 1-1 of hair seat 1 is designed to elongated slot is that to avoid the back bulb 3-1 of power transmission shaft 3 to promote hair seat 1 a upper and lower string moving, promptly avoids the situation of S=S1 to occur.The upper and lower string of hair seat 1 is moving then to be promoted by preceding bulb 3-2, the upper and lower string quantity of motion of hair seat 1 can be designed in suitable scope like this.Then guarantee that hair seat 1 has bigger swing back and forth angle and moderate upper and lower string quantity of motion.
Claims (4)
1, a kind of compound transmission electric toothbrush head, comprise the brush bar and be installed on the interior hair seat of brush bar round end, it is characterized in that: in the brush bar power transmission shaft is housed, between power transmission shaft and the brush bar bearing is installed, power transmission shaft is provided with back bulb and two bulbs of preceding bulb, and hair seat side is provided with elongated slot, and driving hole is arranged at the bottom of described elongated slot, bulb, preceding bulb cooperate with elongated slot, the driving hole of hair seat respectively after the rotating drive shafts, drive the hair seat and swing and axial motion.
2, according to the described compound transmission electric toothbrush head of claim 1, it is characterized in that: the driving hole that described hair seat is gone up the elongated slot bottom is a circular hole.
3, according to the described compound transmission electric toothbrush head of claim 1, it is characterized in that: the driving hole that described hair seat is gone up the elongated slot bottom is a long slot bore.
4, according to the described compound transmission electric toothbrush head of claim 1, it is characterized in that: the center of the preceding bulb on the power transmission shaft is to the axial string quantity of motion up and down of the half-breadth T decision hair seat of mao seat, usually T value less than back bulb and hair seat axis apart from T1, and greater than 0.1mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223921 CN2607971Y (en) | 2003-02-26 | 2003-02-26 | Composite driving motor-driven toothbrush head |
| GB0404027A GB2398736B (en) | 2003-02-26 | 2004-02-24 | Electric toothbrush |
| DE200410009181 DE102004009181A1 (en) | 2003-02-26 | 2004-02-25 | Electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223921 CN2607971Y (en) | 2003-02-26 | 2003-02-26 | Composite driving motor-driven toothbrush head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607971Y true CN2607971Y (en) | 2004-03-31 |
Family
ID=34163078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03223921 Expired - Fee Related CN2607971Y (en) | 2003-02-26 | 2003-02-26 | Composite driving motor-driven toothbrush head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607971Y (en) |
-
2003
- 2003-02-26 CN CN 03223921 patent/CN2607971Y/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 |