CN2666372Y - Electric toothbrush head utilizing U-shape swinging bar - Google Patents
Electric toothbrush head utilizing U-shape swinging bar Download PDFInfo
- Publication number
- CN2666372Y CN2666372Y CN 200320130047 CN200320130047U CN2666372Y CN 2666372 Y CN2666372 Y CN 2666372Y CN 200320130047 CN200320130047 CN 200320130047 CN 200320130047 U CN200320130047 U CN 200320130047U CN 2666372 Y CN2666372 Y CN 2666372Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- power transmission
- brush
- electric toothbrush
- toothbrush head
- 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 - Lifetime
Links
Images
Landscapes
- Brushes (AREA)
Abstract
An electric toothbrush head which uses a U-shaped swing arm includes a brush rod and a brush tray which is arranged at the end part of the brush rod, the utility model is characterized in that: a transmission shaft is arranged in the brush rod, a bearing is arranged between the transmission shaft and the brush rod, the shoulder part of the transmission shaft is equipped with a clearance compensation spring, the U-shaped swing arm is movably arranged on a short shaft which is arranged at the both sides of the back part of the brush tray, a concave ball head which is arranged at the bottom end of the U-shaped swing arm is movably fit with an eccentric convex ball head which is arranged at the front end of the transmission shaft, the inside of the end part of the brush rod is provided with an installation table, the outside of the installation table is provided with a compensation spring, the brush tray and the installation table of the brush rod are installed with the same straight axis. The electric toothbrush head uses a transmission mechanism which is composed of the transmission shaft which is provided with the eccentric convex ball head and the U-shaped swing arm to drive the brush tray to carry out the reciprocating rotary movements with the large swing; at the same time, the utility model is provided with the clearance compensation spring, which can adjust the clearances among all the components automatically, improve the transmission efficiency, reduce the noise and prolong the service life.
Description
Technical field
The new shape of this practicality relates to the electric toothbrush parts, specifically is a kind of electric toothbrush head that adopts the U-shaped rocking bar.
Background technology
The electric toothbrush head manner of execution can be divided into: two kinds of brush circumgyration and brush linear reciprocal movements.And the common class shape of brush circumgyration drive mechanism has: eccentric shaft transmission, three kinds of structures of gear drive and connecting rod transmission.Tradition eccentric shaft transmission head toothbrushes simple in structure, but pivot angle is less, and its maximum pendulum angle can only reach 27 degree.And be difficult to guarantee closely cooperating between eccentric shaft and the brush dish, transmission efficiency is lower, and noise is bigger, and service life is short.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of existing electric toothbrush head, the electric toothbrush head of a kind of well-formed's employing U-shaped rocking bar is provided,, improves the transmission efficiency of head toothbrushes simultaneously to increase the pivot angle of head toothbrushes, reduce noise, prolong its service life.
The electric toothbrush head of employing U-shaped rocking bar of the present utility model, comprise brush holder support 7 and the brush dish 1 that is loaded on brush holder support 7 ends, it is characterized in that: be provided with power transmission shaft 9 in the described brush holder support 7, bearing 8 is installed between power transmission shaft 9 and the brush holder support 7, the shoulder assemblage gap counterbalance spring 6 of power transmission shaft 9, brush coils the movable U-shaped rocking bar 5 of installing on the minor axis of both sides, 1 rear portion, the spill bulb 51 of U-shaped rocking bar 5 bottoms and the eccentric convex bulb 91 of power transmission shaft 9 front ends are movingly, inboard, brush holder support 7 end is provided with erecting bed 61, the gapped counterbalance spring 2 in described erecting bed 61 outsides, brush dish 1 is installed with d-axis 4 with the erecting bed 61 of brush holder support 7.Power transmission shaft rotates, and drives the brush dish by the U-shaped rocking bar that is connected with its eccentric convex bulb and back and forth puts on the angular convolution commentaries on classics.
This electric toothbrush head adopts the drive mechanism that is made of power transmission shaft that has eccentric convex bulb and U-shaped rocking bar, can carry out the reciprocating rotating motion of long arc by the drive brush dish.
Simultaneously, the clearance compensating spring of the shoulder of power transmission shaft can be regulated the gap of the spill bulb of the eccentric convex bulb of power transmission shaft front end and U-shaped rocking bar bottom automatically, clearance compensating spring between the erecting bed of brush dish and brush holder support end can be regulated gap between the two automatically, guarantee between power transmission shaft and the brush dish, closely cooperating between brush dish and the brush holder support, improve transmission efficiency, reduce noise, prolong the service life of head toothbrushes greatly.
Description of drawings
Fig. 1 is allusion quotation shape embodiment 1 three-dimensional structure diagram of this electric toothbrush head;
Fig. 2 is Fig. 1 cut-away view;
Fig. 3 is the brush dish structure chart of Fig. 1;
Fig. 4 is the U-shaped rocker structure figure of Fig. 1;
Fig. 5 is the transmission shaft structure figure of Fig. 1;
State diagram when Fig. 6 a forwards maximum pendulum angle to the right for its brush dish;
Fig. 6 b is that embodiment 1U shape rocking bar is apart from the state diagram of brush dish highest distance position;
State diagram when Fig. 6 c forwards maximum pendulum angle to left for embodiment 1 brush dish;
Fig. 6 d is that embodiment 1U shape rocking bar is apart from the state diagram of brush dish proximal most position;
Fig. 7 is allusion quotation shape embodiment 2 cut-away views of this electric toothbrush head.
The specific embodiment
Below in conjunction with the embodiment accompanying drawing this utility model is further specified.
As Fig. 1, shown in 2, embodiment 1 electric toothbrush head mainly comprises brush holder support 7, brush dish 1, power transmission shaft 9 and U-shaped rocking bar 5, be provided with power transmission shaft 9 in the brush holder support 7, bearing 8 is installed between power transmission shaft 9 and the brush holder support 7, the shoulder assemblage gap counterbalance spring 6 of power transmission shaft 9, power transmission shaft 9 front ends are provided with eccentric convex bulb 91, brush coils the movable U-shaped rocking bar 5 of installing on the minor axis of both sides, 1 rear portion, the spill bulb 51 of U-shaped rocking bar 5 bottoms and the eccentric convex bulb 91 of power transmission shaft 9 front ends are movingly, inboard, brush holder support 7 end is provided with erecting bed 61, the gapped counterbalance spring 2 in described erecting bed 61 outsides, brush dish 1 is installed with d-axis 4 with the erecting bed 61 of brush holder support 7,4 one of described d-axis are fixed on the erecting bed 61 of brush holder support 7 in the central shaft hole 62, and brush dish 1 and described d-axis 4 are movingly.
Described d-axis 4 is a stainless steel shaft, its injection moulding is in the erecting bed 61 of brush holder support 7, brush coils 1 rear portion mount pad 11, the lateral surface of mount pad 11 has cannelure 12, fixing pin 3 on the brush holder support 7 corresponding with cannelure 12, one end of pin 3 be embedded in the described cannelure 12 and with cannelure 12 movingly, be used to prevent that brush dish 1 from deviating from from brush holder support 7.
Wherein, one end of clearance compensating spring 6 contacts with the front end face of bearing 8, the other end of clearance compensating spring 6 contacts with the lower surface of power transmission shaft 9 heads 92, is used for regulating automatically the fit clearance of the spill bulb of the eccentric convex bulb of power transmission shaft front end and U-shaped rocking bar bottom.In concrete the enforcement, requiring gap value is 0.02～0.05mm, guarantees that eccentric convex bulb 91 rotates in the spill bulb flexibly, and the too not loosening noise that produces.
One end of clearance compensating spring 2 contacts with the rear end face of brush dish 1, the other end of clearance compensating spring 2 contacts with the bottom of the erecting bed 61 of brush holder support 7 ends, be used for regulating automatically clearance compensating spring between the erecting bed bottom of brush dish and brush holder support end and can eliminate between the two gap automatically, avoid excesssive gap to produce noise.
With reference to Fig. 3,4, there is spill bulb 51 U-shaped rocking bar 5 bottoms, all there is axis hole 52 the opening both sides of U-shaped rocking bar 5, brush coils 1 front end knits bristle 13, brush coils 1 rear end the mount pad 11 that cooperates with described brush holder support erecting bed 61 is set, mount pad 11 both sides are provided with minor axis 12, and the minor axis 12 that the axis hole 52 of U-shaped rocking bar 5 coils both sides, 1 rear portion with brush respectively movingly.
Fig. 5 is its transmission shaft structure figure.The shoulder 93 of power transmission shaft 9, head 92 and axle body 94 are all cylindrical, the shoulder 93 of power transmission shaft 9 is between the head 92 of the axle body 94 of power transmission shaft and power transmission shaft, less than the diameter of head 92, eccentric convex bulb 91 is positioned on the front end face of head 92 of power transmission shaft the diameter of described shoulder 93 greater than the diameter of axle body 94.
The head 92 of described power transmission shaft 9 and shoulder 93 are one, and the axle body 94 of power transmission shaft 9 is plugged in the described shoulder 93.The head 92 of described power transmission shaft 9, shoulder 93 and axle body 94 are also integrated.
For reducing under heavily loaded situation, because of causing brush to coil 1 rotational angle, 9 distortion of U-shaped rocking bar 5 or power transmission shaft diminish, the head of described U-shaped rocking bar 5 and power transmission shaft 9 or power transmission shaft 9 adopts rigidity and bigger polyacetal resin (POM, Polyformaldehyde Resin) or the nylon (Nylon) of intensity to make.
With reference to Fig. 6 a-6d, the transmission process of head toothbrushes is described:
Fig. 7 is allusion quotation shape embodiment 2 cut-away views of this electric toothbrush head.The primary structure of embodiment 2 is with embodiment 1, and both differences are fixed position differences of d-axis 4.D-axis 4 adopts stainless steel material to make, and the one end combines with brush dish 1 by annular knurl or back-off and is injected into one, and central shaft hole 62 is installed clamping sheet 10 movingly on the erecting bed 61 of d-axis 4 and brush holder support 7 in the draw-in groove of the rear end of d-axis 4, prevents that brush dish 1 breaks away from brush holder support 7.In the present embodiment, described clamping sheet 10 adopts E shape meson, collar etc.
Claims (11)
1, a kind of electric toothbrush head that adopts the U-shaped rocking bar, comprise brush holder support (7) and be loaded on the brush dish (1) of brush holder support (7) end, it is characterized in that: be provided with power transmission shaft (9) in the described brush holder support (7), between power transmission shaft (9) and the brush holder support (7) bearing (8) is installed, the shoulder assemblage gap counterbalance spring (6) of power transmission shaft (9), the movable U-shaped rocking bar (5) of installing on the minor axis of brush dish (1) both sides, rear portion, the eccentric convex bulb (91) of the spill bulb (51) of U-shaped rocking bar (5) bottom and power transmission shaft (9) front end movingly, brush holder support (7) inboard, end is provided with erecting bed (61), described erecting bed (61) outside gapped counterbalance spring (2), brush dish (1) is installed with the same d-axis of erecting bed (61) (4) of brush holder support (7).
2, electric toothbrush head according to claim 1 is characterized in that: (4) one of described d-axis are fixed in the last central shaft hole (62) of erecting bed (61) of brush holder support (7), and brush dish (1) and described d-axis (4) are movingly.
3, electric toothbrush head according to claim 1, it is characterized in that: (4) one of described d-axis are fixed on the brush dish (1), d-axis (4) is gone up central shaft hole (62) movingly with the erecting bed (61) of brush holder support (7), and clamping sheet (10) is installed in the rear end of d-axis (4).
4, electric toothbrush head according to claim 1, it is characterized in that: the shoulder (93) of described power transmission shaft (9) is positioned between the head (92) of the axle body (94) of power transmission shaft and power transmission shaft, less than the diameter of head (92), eccentric convex bulb (91) is positioned on the front end face of head (92) of power transmission shaft the diameter of described shoulder (93) greater than the diameter of axle body (94).
5, electric toothbrush head according to claim 4 is characterized in that: the head (92) and the shoulder (93) of described power transmission shaft (9) are one, and the axle body (94) of power transmission shaft (9) is plugged in the described shoulder (93).
6, electric toothbrush head according to claim 4 is characterized in that: the head (92) of described power transmission shaft (9), shoulder (93) and axle body (94) are one.
7, electric toothbrush head according to claim 1 is characterized in that: an end of described clearance compensating spring (6) contacts with the front end face of bearing (8), and the other end of clearance compensating spring (6) contacts with the lower surface of the head (92) of power transmission shaft (9).
8, electric toothbrush head according to claim 1 is characterized in that: an end of described clearance compensating spring (2) contacts with the rear end face of brush dish (1), and the other end of clearance compensating spring (2) contacts with the bottom of the erecting bed (61) of brush holder support (7) end.
9, electric toothbrush head according to claim 1 is characterized in that: all there is axis hole (52) the opening both sides of described U-shaped rocking bar (5), described axis hole (52) respectively with the minor axis (12) of brush dish (1) both sides, rear portion movingly.
10, electric toothbrush head according to claim 1 is characterized in that: described d-axis (4) is the rustless steel d-axis.
11, electric toothbrush head according to claim 1 is characterized in that: the head of described U-shaped rocking bar (5) and power transmission shaft (9) or power transmission shaft (9) is that polyacetal resin or nylon material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320130047 CN2666372Y (en) | 2003-12-22 | 2003-12-22 | Electric toothbrush head utilizing U-shape swinging bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320130047 CN2666372Y (en) | 2003-12-22 | 2003-12-22 | Electric toothbrush head utilizing U-shape swinging bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666372Y true CN2666372Y (en) | 2004-12-29 |
Family
ID=34350047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320130047 Expired - Lifetime CN2666372Y (en) | 2003-12-22 | 2003-12-22 | Electric toothbrush head utilizing U-shape swinging bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666372Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654987A (en) * | 2012-09-26 | 2014-03-26 | 沃辉有限公司 | Electric toothbrush head and electric toothbrush |
| CN115307373A (en) * | 2022-08-12 | 2022-11-08 | 合肥美的电冰箱有限公司 | Door assembly of refrigerator and refrigerator |
-
2003
- 2003-12-22 CN CN 200320130047 patent/CN2666372Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654987A (en) * | 2012-09-26 | 2014-03-26 | 沃辉有限公司 | Electric toothbrush head and electric toothbrush |
| CN103654987B (en) * | 2012-09-26 | 2016-08-03 | 沃辉有限公司 | Electric toothbrush head and electric toothbrush |
| CN115307373A (en) * | 2022-08-12 | 2022-11-08 | 合肥美的电冰箱有限公司 | Door assembly of refrigerator and refrigerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1792023A (en) | Rolling drive actuator and toothbrush using the same | |
| CN1582134A (en) | Complex motion toothbrush | |
| CN2666372Y (en) | Electric toothbrush head utilizing U-shape swinging bar | |
| CN111913271A (en) | Five-degree-of-freedom laser reflection adjusting device | |
| CN2666371Y (en) | Electric toothbrush head | |
| CN2835570Y (en) | Rocker base capable of realizing valve rotation | |
| CN201319051Y (en) | Sheet type semiconductor element test mechanism | |
| CN208121356U (en) | A kind of separate type presser feet cam drive and embroidery machine | |
| CN102700904B (en) | Automatic bamboo delivery machine stable in operation and low in noise | |
| CN110861051B (en) | Multi-freedom degree complete adjustable device | |
| CN112456407A (en) | Vacuum cap screwing machine | |
| CN113494578A (en) | Novel electronic divider structure | |
| CN217600983U (en) | Needle pitch adjusting mechanism of sewing machine | |
| CN209876834U (en) | Swing lamp holder | |
| CN214713384U (en) | Massage rocker arm mechanism that can extend | |
| CN2412820Y (en) | Base for water pot support mounted on bicycle | |
| CN2262621Y (en) | Oscillating fan | |
| CN218906329U (en) | Lifting structure for printing platform and 3D printing platform assembly | |
| CN210031115U (en) | Wear-resistant guide mechanism of embroidery machine head | |
| CN2803308Y (en) | Electric toothbrush | |
| CN218796967U (en) | Coating mechanism and PCB processing equipment | |
| CN210826669U (en) | Needle pitch limiting mechanism | |
| CN211171154U (en) | Buffer device in thread trimming mechanism | |
| CN218923761U (en) | VR is compound actuating mechanism for dynamic regulation | |
| CN214177072U (en) | Double-guide-rod nut driving electric cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131222 Granted publication date: 20041229 |