CN106901858A - Double-headed toothbrush head and the electric toothbrush of the double-headed toothbrush head is installed - Google Patents
Double-headed toothbrush head and the electric toothbrush of the double-headed toothbrush head is installed Download PDFInfo
- Publication number
- CN106901858A CN106901858A CN201710312875.9A CN201710312875A CN106901858A CN 106901858 A CN106901858 A CN 106901858A CN 201710312875 A CN201710312875 A CN 201710312875A CN 106901858 A CN106901858 A CN 106901858A
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- China
- Prior art keywords
- brush
- double
- toothbrush head
- headed toothbrush
- shroud
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
- A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
Abstract
The present invention provides a kind of electric toothbrush for being provided with the respective double acting head toothbrushes of self-movement of front and rear brush.In accordance with the invention it is possible to the front and rear brush kinetic stability of collision, raising before and after further suppressing between brush.Double-headed toothbrush head of the invention includes brush holder support (1), preceding brush (7) and rear brush (6),, in tandem installed in the leading section of brush holder support (1), the double-headed toothbrush head also includes for the preceding brush (7) and rear brush (6)：Swing arm (18), its leading section for being pivotally supported at the brush holder support (1),, by the front-end driven of the swing arm (18) around the center of rotation left-right rotation of the preceding brush (7), the rear brush (6) is by the rear end driving of the swing arm (18) around the center of rotation left-right rotation of the rear brush (6) for the preceding brush (7).
Description
Technical field
It is more particularly to a kind of that the double acting of the respective self-movement of front and rear brush is installed the present invention relates to a kind of electric toothbrush
The electric toothbrush of head toothbrushes.
Background technology
At present, with the extensive use of electric toothbrush, the double-headed toothbrush head being made up of preceding brush and rear brush is on the market simultaneously
It is not rare.Compared with conventional single head head toothbrushes, double-headed toothbrush head has the advantages that brush finish is big, brushing efficiency is high.
The content of the invention
Problems to be solved by the invention
But, double-headed toothbrush head on the market is typically former and later two brushs by linkage driving, and does not take into full account
The kinetic stability of preceding brush.Thus there is a problem of that front and rear brush is easily mutually collided, rubs and produce noise.
The scheme for solving problem
The present invention is in order to solve the above problems, it is proposed that a kind of double-headed toothbrush head, and it includes brush holder support, preceding brush and rear brush
, in tandem installed in the leading section of brush holder support, the double-headed toothbrush head is characterised by that it is also wrapped for disk, the preceding brush and rear brush
Include：Swing arm, its leading section for being pivotally supported at the brush holder support, the preceding brush is by the front-end driven of the swing arm around this
The center of rotation left-right rotation of preceding brush, the rear brush is by the rear end driving of the swing arm in the rotation of the rear brush
Heart left-right rotation.
According to the technical scheme, independent driving is carried out to front and rear brush by using swing arm, make front and rear brush mutually only
On the spot move, so as to avoid the situation that double-headed toothbrush head is susceptible to collision because of front and rear brush each other ganged movement, and then
Noise and the friction produced by collision can be suppressed.
Preferably, the double-headed toothbrush head include cover plate, its leading section for being installed on the brush holder support, for support it is described after
Brush.By setting cover plate, preceding brush and/or rear brush can be made in lid using cover plate come Zhi Chengqian brushs and/or rear brush
Moved on the upper surface of plate such that it is able to ensure the stability of preceding brush and/or rear brush in plane of movement.
Preferably, the double-headed toothbrush head includes rotary shaft, the rotary shaft be located at the swing arm front end and rear end it
Between, the swing arm can be pivoted around the axis of the rotary shaft.
Preferably, the double-headed toothbrush head includes：Power transmission shaft, it is by with can be around the double-headed toothbrush head pivot point line
The mode of rotation drives, and the rotary centerline is the central axis along fore-and-aft direction of the double-headed toothbrush head；And it is eccentric
Axle,, located at the front of the power transmission shaft in the way of relative to the transmission eccentric shaft, the swing arm is by the eccentric shaft for it
Drive and pivot.
Preferably, the rear end of the swing arm is provided with the swing hole for eccentric shaft insertion, and the eccentric shaft is in quilt
Drive and around the rotary centerline rotate when, hole wall of the eccentric shaft along the swing hole in the swing hole is upper and lower
Slide.
Preferably, the front end of the swing arm is provided with swinging axle, and the preceding brush is provided with for the swinging axle in bottom
The shroud slotted eye of insertion, the hole wall that the swinging axle can be along the shroud slotted eye in the shroud slotted eye is slided, so as to drive
Move the preceding brush left-right rotation.
Preferably, the double-headed toothbrush head includes shroud rotary shaft and axle sleeve, and the preceding brush is provided with shroud and inserts in bottom
The brush holder support is fixed in hole, one end of the shroud rotary shaft, and the other end is inserted in the shroud jack by the axle sleeve.It is logical
Cross the nested rotating mechanism with axle sleeve using axle such that it is able to suppress frictional force, reduce noise.
Preferably, the shroud rotary shaft and the axle sleeve are metal system.By using metal rotating mechanism, energy
It is enough further to suppress frictional force, reduce noise.
Preferably, swing boss is formed with above swing arm swing hole in its back-end, the rear brush exists
Bottom is provided with the hub disk clip slot for the swing boss insertion, and the swing boss can be in the rear in disk folder groove along after this
The cell wall of disk folder groove is slided.
Preferably, the double-headed toothbrush head also includes limiting component, and the limiting component is installed on the brush holder support, is provided with and supplies institute
State power transmission shaft by can around the rotary centerline freely rotate in the way of the jack that runs through, the limiting component is in the transmission
Configured near eccentric shaft on axle.Power transmission shaft is limited by using limiting component, power transmission shaft can be avoided to deviate, it can be ensured that passed
Moving axis is rotated around rotary centerline all the time.So as to provide the driving force of stabilization, Jin Erti via eccentric axial direction swing arm
Stability before and after high in brush motion, can suppress frictional force, reduce noise.
Preferably, the rear end side of the cover plate is provided with the cover plate projection for pressing the limiting component.Pressed using cover plate
Limiting component, can avoid limiting component from coming off, and thereby further ensure that holding stabilization of the limiting component for power transmission shaft.
Preferably, the double-headed toothbrush head includes the shroud limit component that the limitation preceding brush is planar moved.Profit
The spacing of above-below direction is carried out to preceding brush with shroud limit component, it is possible to increase the stability in preceding brush motion, so as to
Enough avoid front and rear brush from producing collision, reduce frictional force, reduce noise.
Preferably, the shroud limit component is at least two shaft components, and the preceding brush sets in the lower surface of pan portion
There is a shroud post portion for extending downwardly, and chute is provided with the shroud post portion, at least two shaft component is can freely rotate
Mode insert the chute behind the leading section of the brush holder support, at least two shaft component is in the preceding brush motion
Top cell wall and bottom cell wall sliding contact with the chute.
Preferably, shroud block is provided with above the chute in the shroud post portion, under the shroud block
Surface is generally aligned in the same plane interior with the top cell wall of the chute.
Preferably, the upper surface of the cover plate is formed with least one cover plate projection.Cover plate projection causes rear brush
Small interval is formed between pan portion lower surface and cover plate upper surface, after can reducing brush during exercise with cover plate upper surface
Contact area, so that frictional force, reduction noise after reducing in brush motion with cover plate.
Preferably, the leading section of the cover plate is formed with the cover plate open front for accommodating the preceding brush.By in cover plate
Upper formation cover plate open front such that it is able to carry out being supported in face to preceding brush using cover plate so that front and rear brush is on the same plane
Interior motion, so as to improve the stability in front and rear brush motion.
Preferably, the left and right A/F of the cover plate open front gradually increases with front is tended to.
In addition, the present invention also provides a kind of electric toothbrush for being provided with above-described double-headed toothbrush head.
The effect of invention
The present invention provides a kind of collision that can further suppress between front and rear brush, improves front and rear brush kinetic stability
Double-headed toothbrush head and the electric toothbrush of the double-headed toothbrush head is installed.
Brief description of the drawings
Fig. 1 is the schematic perspective view for representing the electric toothbrush with double-headed toothbrush head of the invention.
Fig. 2 is the partial sectional view in left and right directions central portion cutting for representing electric toothbrush of the invention.
Fig. 3 is the schematic perspective view for representing double-headed toothbrush head to the state before brush holder support installation.
Fig. 4 is the exploded perspective view of the brush holder support for representing electric toothbrush of the invention.
Fig. 5 is the schematic perspective view that brush holder support is installed on from oblique front upper place observation swing arm.
Fig. 6 is the exploded perspective view for showing swing arm and double-headed toothbrush head.
Fig. 7 is the stereogram for showing the state before rear brush and cover plate assembling.
Fig. 8 is the stereogram for showing swing arm and the installation relation of preceding brush.
Fig. 9 A are to represent that double-headed toothbrush head is located at the top view of the state of neutral position.
Fig. 9 B are the line A-A sectional views of Fig. 9 A.
Figure 10 A are the top views of state when representing that rear brush is rotated counterclockwise, preceding brush is rotated clockwise.
Figure 10 B are the line B-B sectional views of Figure 10 A.
Figure 11 A are the top views of state when representing that rear brush is rotated clockwise, preceding brush is rotated counterclockwise.
Figure 11 B are the line C-C sectional views of Figure 11 A.
Description of reference numerals
1st, brush holder support；2nd, power transmission shaft；3rd, limiting component；4th, connecting rod；5th, cover plate；5a, clip slot hole；5b, cover plate jack；5c、
Cover plate open front；5d, cover plate are raised；5e, cover plate projection；6th, rear brush；61st, hub disk teat；61a, teat head；7th, preceding brush
Disk；7a, shroud jack；7b, shroud block；8th, axle sleeve；9th, shroud rotary shaft；10th, pin；11st, motor, 12, toothbrush body；
13rd, connection rotating shaft；14th, bristle；15th, shroud slotted eye；16th, hub disk clip slot；17th, eccentric shaft；18th, swing arm；18a, rotary shaft；
19th, boss is swung；20th, swinging axle；21st, brush holder support boss；22nd, hole is swung；23rd, brush holder support mesopore；O, rotary centerline
Specific embodiment
Below for convenience of description, define electric toothbrush around and above-below direction.Specifically, Fig. 1 is table
Show the schematic perspective view of the electric toothbrush with double-headed toothbrush head of the invention.The toothbrush body 12 of electric toothbrush in Fig. 1 is prolonged
The direction stretched is set to fore-and-aft direction, and will be provided with the side of brush holder support 1 and be set to front side, by along fore-and-aft direction it is opposite with front side one
Side is set to rear side.The direction that bristle in Fig. 1 14 extends is set to above-below direction, and will be set relative to front and rear brush in above-below direction
The side for having bristle 14 is set to upside, will be set to downside along the above-below direction side opposite with upside.In addition, will be with front and back
To and the orthogonal direction of above-below direction be set to left and right directions.
The construction of electric toothbrush of the invention described further below.
As shown in figure 1, electric toothbrush of the invention include toothbrush body 12 and by brush holder support 1, rear brush 6, preceding brush 7 and
The double-headed toothbrush head that bristle 14 is constituted.Front and rear brush is arranged on the front end of brush holder support 1, and is respectively equipped with bristle in front and rear brush
14.Brush holder support 1, front and rear brush and bristle 14 constitute double-headed toothbrush head of the invention.Fig. 2 be represent electric toothbrush of the invention
The partial sectional view of left and right directions central portion cutting.As shown in Fig. 2 being built-in with motor 11 in toothbrush body 12, motor 11 is borrowed
Helping transmission mechanism described later carries out the driving of double-headed toothbrush head.Brush holder support 1 includes hollow cylindrical portion and the front positioned at brush holder support 1
Leading section unlimited upward.Preceding brush 7 and rear brush 6 are installed on the leading section of brush holder support 1 in the way of in tandem.Separately
Outward, the transmission mechanism being made up of connection rotating shaft 13, connecting rod 4, the power transmission shaft 2 with eccentric shaft 17 and swing arm 18 is accommodated
In brush holder support 1.The rotary centerline O of transmission mechanism will be set under the installment state of connecting rod 4 along the central axis of fore-and-aft direction.
Swing arm 18 is pivotally supported at the leading section of brush holder support 1.In fig. 2, it is provided with brush holder support in the bottom of the leading section of brush holder support 1
Mesopore 23, swing arm 18 is provided with rotary shaft 18a.It is inserted into the brush holder support mesopore 23 of brush holder support 1 by by rotary shaft 18a, so that
Swing arm 18 is rotated centered on rotary shaft 18a.But the mode for pivotally supporting of swing arm 18 is not limited to this, such as also may be used
To set support shaft on brush holder support 1, and the hub portion for support shaft insertion is formed on swing arm 18.In addition, as shown in figure 4, pendulum
The rotary shaft 18a of lever 18 by with tending to be formed with step in the way of upper end side diameter reduces, swinging axle 18a relative to platform
Component level is in the cover plate jack 5b that the end of upper side is inserted in cover plate described later 5.But step can not also be formed.
The leading section of swing arm 18 by the preceding brush 7 of pivot suspension to being driven.As shown in Fig. 2 in the front end of brush holder support 1
In portion, the cylindrical hole for the insertion of shroud rotary shaft 9 is provided with the position than the forward side of brush holder support mesopore 23, in shroud rotary shaft 9
It has been nested in axle sleeve 8.The axle sleeve 8 is inserted in the shroud jack 7a of the bottom of preceding brush 7.The center of shroud jack 7a with
The center of rotation of preceding brush 7 is consistent.Thus, the situation of brush holder support 1 is installed on by shroud rotary shaft 9 and axle sleeve 8 in preceding brush 7
Under, it can be ensured that the concentricity in the rotation of preceding brush 7 such that it is able to reduce frictional force, suppress abrasion.Furthermore it is preferred that the He of axle sleeve 8
Shroud rotary shaft 9 is metal system such that it is able to further reduce frictional force.In the present embodiment, the pivot suspension of preceding brush 7
In brush holder support 1, but preceding brush 7 can also be supported on a pivot on cover plate described later 5.
In addition, as shown in Figure 2, it is also possible to the close eccentric shaft 17 in brush holder support 1 and position relative to eccentric shaft 17 rearward
Limiting component 3 is installed.The limiting component 3 be provided with for power transmission shaft 2 by can around rotary centerline O rotate freely in the way of run through
Jack.Prevent power transmission shaft 2 from deviateing rotary centerline O using limiting component 3, it is ensured that power transmission shaft 2 is same in motion process
Heart degree such that it is able to reduce frictional force, reduce noise.It is preferred that limiting component 3 and power transmission shaft 2 are metal system, further to subtract
Less friction, suppression noise.Figure 3 illustrates an example of limiting component 3, it is tabular, and is formed as inverted U-shaped.
In addition, as shown in Fig. 2 in the portion along fore-and-aft direction near the leading section of brush holder support 1 and relative to the leading section rearward of brush holder support 1
Position is provided with brush holder support boss 21, and slot (not shown) is provided with the brush holder support boss 21.Above-mentioned inverted U-shaped limiting component 3 is inserted
To in the slot of brush holder support boss 21, and pressed by the cover plate 5 for brush after supporting 6 described later and fixed.But limiting component 3 is simultaneously
The construction shown in Fig. 3 is not limited to, for example, can also be the snap ring formed by wire rod.In such a case it is not necessary in brush
The bottom of bar 1 sets brush holder support boss 21, for example, claw can be set, as long as limiting component 3 can be fixed.
Hereinafter illustrate the construction of cover plate 5.
Cover plate 5 is installed in brush holder support 1, for brush after supporting 6.
As shown in figure 3, being sequentially formed with clip slot hole 5a, cover plate jack 5b and cover plate open front from back to front on cover plate 5
5c.Clip slot hole 5a is provided with the position of aftermentioned hub disk clip slot 16 to be moved freely in the 5a of the clip slot hole for rear brush 6
Mode runs through.The cover plate jack 5b is opened on cover plate 5 and downward using the wall portion erected downwards from the following table of cover plate 5
Extend, for the upper end insertion of the rotary shaft 18a of swing arm 18.Stage portion is formed with the inwall of cover plate jack 5b.Such as Fig. 7
It is shown, because cover plate jack 5b is formed with stage portion, therefore (being in the figure 7 paper upside) on the lower of cover plate jack 5b hole
Footpath is bigger than the aperture of upper (being in the figure 7 paper downside).The stage portion is dashed forward with the hub disk for extending downwardly of the bottom of rear brush 6
The teat head 61a engagings in portion 61.So as to when rear brush 6 is installed on cover plate 5, rear brush 6 can be around the hub disk teat 61
Rotated, the hub disk teat 61 is formed as the center of rotation of rear brush 6.
The wall portion that cover plate jack 5b is formed for surrounding of cover plate 5 is respectively formed with front and rear end side and extends up and down
Slit, and the width of the slit of rear end side is smaller than the width of the slit of front.A slit can also only be formed.Due to lid
The above-mentioned wall portion of plate 5 is provided with slit, it is thus possible to so that the cover plate that the hub disk teat 61 of rear brush 6 is easily embedded into cover plate 5 is inserted
Engage in the 5b of hole and with the stage portion in cover plate jack 5b.
In addition, the leading section of cover plate 5 is formed with the cover plate open front 5c of brush 7 before accommodating, the cover plate open front 5c and lid
Plate jack 5b is connected, and is formed as the width on left and right directions with the shape gradually increased towards front.Thus before cover plate 5
End Y-shaped turns into two legs in left and right.By making two upper surfaces of leg of cover plate 5 and the lower surface of the pan portion of preceding brush 7
Sliding contact and supporting is provided preceding brush 7 such that it is able to further ensure that the stability during exercise of preceding brush 7, and really
Brush is located on sustained height before and after protecting.But the shape of cover plate open front 5c is not limited to this, it is also possible to before not forming cover plate
Opening 5c, as long as before the setting without prejudice to of cover plate 5 brush 7 motion.Furthermore it is also possible to preceding brush 7 is pivotally supported at
Cover plate 5.
In addition, as shown in figure 4, it is preferred that cover plate 5 upper surface formed at least one cover plate projection 5d, with brush after reduction
6 frictional force in rotation.
Additionally, as shown in fig. 6, it is preferred that the rear end portion side in the bottom of cover plate 5 is provided with cover plate projection 5e.Cover plate projection 5e pairs
Limiting component 3 for limiting the motion excursion of power transmission shaft 2 is pressed such that it is able to prevent lower bit slice 3 from dropping such that it is able to
Further ensure that the stability during exercise of power transmission shaft 2.
The transmission mechanism of electric toothbrush of the invention described further below.
As shown in Fig. 2 the rear end of connection rotating shaft 13 is connected with motor 11, front end is via the connecting rod 4 that can transmit torque
It is connected with power transmission shaft 2.Used as an example, the rear end of connecting rod 4 is formed as that cross is flower-shaped, and the front end with connection rotating shaft 13 is chimeric
Connection.In fig. 2, jack is formed with the front end of connecting rod 4, the rear end of power transmission shaft 2 is inserted into the jack of connecting rod 4 simultaneously
It is fixed.But the front end being connected with power transmission shaft 2 of connecting rod 4 does not limit, as long as the driving force of motor 11 can be transferred to
Moving axis 2.Connecting rod 4 can also for example be integrally formed with power transmission shaft 2.
In addition, as shown in Fig. 2 convex with the internal diameter identical of the cylindrical portion of brush holder support 1 in the front end formation diameter of connecting rod 4
Edge.The front end of the power transmission shaft 2 being connected with connecting rod 4 is formed with eccentric shaft 17.Axle of the axis of eccentric shaft 17 relative to power transmission shaft 2
Line deviates.Eccentric shaft 17 is inserted into the swing hole 22 of the rear end of swing arm 18.Swing the above-below direction of hole 22 on height be more than or
The twice of the distance equal to eccentric shaft 17 relative to the bias of power transmission shaft 2.When power transmission shaft 2 rotate in a circumferential direction motion, eccentric shaft
17 slide up and down in the swing hole 22 of swing arm 18 along the hole wall for swinging hole 22, so as to the circumferential of motor 11 is driven into conversion
It is horizontal drive, and drives the front and rear brush to carry out the motion in plane via swing arm 18.
Swing arm described further below 18 is configured with the connection of front and rear brush.
Fig. 6 is the exploded perspective view for showing swing arm and double-headed toothbrush head.Also, for the ease of observing, in figure 6, will
Swing arm 18 and front and rear brush show after spinning upside down.As shown in fig. 6, the front end of swing arm 18 is provided with swinging axle 20, the swing
Axle 20 is inserted in the shroud slotted eye 15 of the bottom of preceding brush 7 and can be slided along hole wall in the shroud slotted eye 15.Swing arm
The top in the swing hole 22 of 18 rear end is provided with swing boss 19, swings boss 19 and is inserted in the hub disk clip slot 16 of rear brush 6
And can be slided along cell wall in hub disk clip slot 16.When swing arm 18 is pivoted motion, preceding brush 7 is by swing arm 18
Swinging axle 20 drives, and is rotated as the shroud jack 7a of center of rotation around it, and rear brush 6 is by the swing boss of swing arm 18
19 drive, and are rotated as the rotation teat (not shown) of center of rotation around it.
Hereinafter illustrate the installation method of double-headed toothbrush head of the invention.
In the transmission that will be made up of connection rotating shaft 13, connecting rod 4, the power transmission shaft 2 with eccentric shaft 17 and swing arm 18
After mechanism is contained in brush holder support 1, limiting component 3 is installed.Then, the fitting portion of cover plate 5 is embedded into the fitting portion of brush holder support 1
In, cover plate 5 is installed on brush holder support 1.The hub disk clip slot 16 of rear brush 6 is inserted into the clip slot hole 5a of cover plate 5, by rear brush
6 hub disk teat 61 is embedded into the cover plate jack 5b of cover plate 5.
Then brush 7 before installing.
It is provided with the bottom of preceding brush 7 and extended downwardly from the lower surface of the pan portion of preceding brush 7 and projected along above-below direction
The area shroud post portion smaller than the sectional area of the pan portion and the center of rotation as preceding brush 7 shroud jack 7a.By axle sleeve 8
Be inserted into the shroud jack 7a of preceding brush 7, shroud rotary shaft 9 is inserted into the cylindrical hole on brush holder support 1 it is fixed, then by shroud
Rotary shaft 9 is inserted into axle sleeve 8, so that preceding brush 7 is installed on brush holder support 1.Finally, at least two shaft components 10,10 are existed
Accordingly being located in the chute in its shroud post portion for preceding brush 7 is inserted into after brush holder support 1.The cell wall up and down of each chute with
The sliding contact of shaft component 10 inserted, is carried out in the way of the left-right rotation of brush before without prejudice to 7 by shaft component 10 to preceding brush 7
Above-below direction it is spacing.Further, it is also possible to form shroud block 7b respectively above each chute in shroud post portion.Shaft component 10
While the sliding contact of cell wall up and down with chute also with the lower surface sliding contact of shroud block 7b, so as to increase shaft component 10
To the contact area of preceding brush 7, the stability during brush 7 is moved before further improving.A left side is shown as an example in fig. 4
Right a pair of pins are used as shaft component 10,10.Before a pair of pins are inserted in preceding brush 7 from the left and right sides of the leading section of brush holder support 1
Disk post opens up pair of right and left chute in portion, is begun in the way of the left-right rotation of brush before without prejudice to 7 during preceding brush 7 is moved
Eventually with the sliding contact of preceding brush 7 such that it is able to ensure stability of the preceding brush 7 in motion process using a pair of pins.In addition,
It is tabular figure 8 illustrates shroud block 7b, when being observed along above-below direction, shroud block 7b is from the shroud post portion of preceding brush 7
Extend in involute shape.But the shape of shroud block 7b is not limited to this, as long as can be kept in the motion process of preceding brush 7
With the sliding contact of shaft component 10.In the example in fig. 4, in each side one pin of installation as shaft component 10, but
Shaft component can also set more than three, and set location is also arbitrary, is not limited to the left and right sides.
Hereinafter illustrate the motion principle of double-headed toothbrush head of the invention.
As described above, the front end of power transmission shaft 2 is provided with eccentric shaft 17.The central axis of eccentric shaft 17 is relative to power transmission shaft 2
Central axis staggers, and the offset is designated as into eccentric throw.When power transmission shaft 2 carries out circumferential rotary motion by driving, along turn
The bearing of trend observation of dynamic center line O, eccentric shaft 17 moves in a circle around rotary centerline O by radius of eccentric throw.Due to pendulum
Moving up and down for lever 18 is limited, therefore is swinging hole in eccentric shaft 17 is inserted into the swing hole 22 of the rear end of swing arm 18
When being slided up and down along hole wall in 22, the rear end of swing arm 18 is driven by eccentric shaft 17 and planar moves left and right, so as to by pivot
The swing arm 18 for turning supporting pivots about the axis of supporting portion and swings.The swinging axle 20 of the front of swing arm 18 is with after
The swing boss 19 of side is synchronized with the movement.The preceding dish groove of preceding brush 7 is inserted in due to the swinging axle 20 of the front of swing arm 18
With hole wall sliding contact in hole 15 and in shroud slotted eye 15, therefore, preceding brush 7 is driven with the movement of swinging axle 20,
Rotated around shroud jack 7a.The swing boss 19 of the rear end side of swing arm 18 is with can be along the hub disk clip slot 16 of rear brush 6
The mode that inwall is slided is inserted in hub disk clip slot 16, therefore, rear brush 6 is driven with the movement of hub disk clip slot 16, around
The center of rotation left-right rotation of brush 7 afterwards.
Double-headed toothbrush head is shown respectively in Fig. 9 A and Fig. 9 B not driven by swing arm 18 in the i.e. front and rear brush in neutral position
Top view and line A-A sectional view when dynamic.At neutral position, as shown in Figure 9 B, the shroud block 7b and/or pin of preceding brush 7
Nail jack is located relative to the symmetrical positions of rotary centerline O.Although not shown, but now it is inserted in the swing of swing arm 18
Eccentric shaft 17 in hole 22 is located at extreme higher position or the extreme lower position of above-below direction in hole 22 is swung.When motor 11 is via even
Switch through axle 13 and connecting rod 4 drive power transmission shaft 2 around rotary centerline O rotate in a circumferential direction when, eccentric shaft 17 is due to relative to power transmission shaft 2
It is eccentric to be moved in a circle around rotary centerline O in the plane of center of rotation and line O.Also, due to swing arm 18
Position for accommodating swing hole 22 above-below direction of eccentric shaft 17 is fixed and allows the free skating in hole 22 is swung of eccentric shaft 17
It is dynamic, therefore the circular motion of eccentric shaft 17 is converted into left and right translation using hole 22 is swung.It is pivotally supported at by rotary shaft 18a
The swing arm 18 of the brush holder support mesopore 23 of brush holder support 1 is rotated due to the translation of swing hole 22 or so of end thereafter around rotary shaft 18a.Afterwards
Brush 6 is connected by hub disk clip slot 16 with the rear end of swing arm 18, and because rear brush 6 is pivotally supported at cover plate 5, therefore after
Brush 6 is by the rear end driving of swing arm 18 around the center of rotation left-right rotation of rear brush 6.
The top view and B- of state when the rear brush 6 that double-headed toothbrush head is shown respectively in Figure 10 A and Figure 10 B turns left
B sectional views.The top view and C- of state when the rear brush 6 that double-headed toothbrush head is shown respectively in Figure 11 A and Figure 11 B turns right
C sectional views.As shown in Figure 10 B, eccentric shaft 17 moves to right side, and the rear end of swing arm 18 moves to right side, thus rear brush therewith
The hub disk clip slot 16 for being located at rear side relative to center of rotation of disk 6 is driven by the rear end of swing arm 18 and is moved to right side, brushes afterwards
Disk 6 rotates around it center and rotates counterclockwise.Although not shown, but swing arm 18 front end simultaneously move to left side, the phase of preceding brush 7
Left side is moved to by the front-end driven of swing arm 18 for the shroud slot 15 that center of rotation is located at rear side, preceding brush 7 is around it
Center of rotation is rotated clockwise.In addition, as shown in Figure 11 B, when eccentric shaft 17 moves to left side, rear brush 6 is driven by swing arm 18
Dynamic to rotate clockwise, preceding brush 7 is rotated counterclockwise.
The specific embodiment to double-headed toothbrush head of the invention has been described in detail above, but it is described above be only
Illustrate.Those skilled in the art should no more than the double-headed toothbrush head of present subject matter and installation by appropriate change, combination etc.
The electric toothbrush of double-headed toothbrush head is within protection scope of the present invention.
Claims (18)
1. a kind of double-headed toothbrush head, it includes brush holder support (1), preceding brush (7) and rear brush (6), the preceding brush (7) and rear brush
(6) in tandem installed in the leading section of brush holder support (1),
The double-headed toothbrush head is characterised by that it also includes：
Swing arm (18), its leading section for being pivotally supported at the brush holder support (1),
The preceding brush (7) by the front-end driven of the swing arm (18) around the center of rotation left-right rotation of the preceding brush (7),
The rear brush (6) is by the rear end driving of the swing arm (18) around the center of rotation left-right rotation of the rear brush (6).
2. double-headed toothbrush head according to claim 1, it is characterised in that
The double-headed toothbrush head includes cover plate (5), its leading section for being installed on the brush holder support (1), for supporting the rear brush
(6)。
3. double-headed toothbrush head according to claim 1 and 2, it is characterised in that
The double-headed toothbrush head includes rotary shaft (18a), and the rotary shaft (18a) is located at the front end and rear end of the swing arm (18)
Between,
The swing arm (18) can pivot around the axis of the rotary shaft (18a).
4. double-headed toothbrush head according to claim 1 and 2, it is characterised in that
The double-headed toothbrush head includes：
Power transmission shaft (2), its by by can around double-headed toothbrush head pivot point line (O) rotate in the way of drive, in the rotation
Heart line (O) is the central axis along fore-and-aft direction of the double-headed toothbrush head；And
Eccentric shaft (17), its front that the power transmission shaft (2) is located in the way of relative to the power transmission shaft (2) bias,
The swing arm (18) is driven and pivoted by the eccentric shaft (17).
5. double-headed toothbrush head according to claim 4, it is characterised in that
The rear end of the swing arm (18) is provided with the swing hole (22) for the eccentric shaft (17) insertion, and the eccentric shaft (17) exists
When being rotated around the rotary centerline (O) by driving, the eccentric shaft (17) is in the swing hole (22) along the pendulum
The hole wall of dynamic hole (22) is slided up and down.
6. double-headed toothbrush head according to claim 1 and 2, it is characterised in that
The front end of the swing arm (18) is provided with swinging axle (20),
The preceding brush (7) is provided with the shroud slotted eye (15) for the swinging axle (20) insertion in bottom,
The swinging axle (20) can be in the shroud slotted eye (15) along the hole wall slip of the shroud slotted eye (15), so as to drive
Move preceding brush (7) left-right rotation.
7. double-headed toothbrush head according to claim 1 and 2, it is characterised in that
The double-headed toothbrush head includes shroud rotary shaft (9) and axle sleeve (8),
The preceding brush (7) is provided with shroud jack (7a) in bottom,
The brush holder support (1) is fixed in one end of the shroud rotary shaft (9), the other end by the axle sleeve (8) insertion it is described before
In disk jack (7a).
8. double-headed toothbrush head according to claim 7, it is characterised in that
The shroud rotary shaft (9) and the axle sleeve (8) are metal system.
9. double-headed toothbrush head according to claim 1 and 2, it is characterised in that
Swing boss (19) is formed with above the swing arm (18) swing hole (22) in its back-end,
The rear brush (6) is provided with the hub disk clip slot (16) for swing boss (19) insertion in bottom,
It is described to swing the cell wall that boss (19) be in the rear in disk folder groove (16) along the hub disk clip slot (16) and slide.
10. double-headed toothbrush head according to claim 4, it is characterised in that
The double-headed toothbrush head also includes limiting component (3),
The limiting component (3) is installed on the brush holder support (1), is provided with for the power transmission shaft (2) with can be around the rotary centerline
(O) jack that the mode for freely rotating runs through,
The limiting component (3) configures on the power transmission shaft (2) near eccentric shaft (17).
11. double-headed toothbrush heads according to claim 10, it is characterised in that
Also including cover plate (5), its leading section for being installed on the brush holder support (1),
The rear end side of the cover plate (5) is provided with the cover plate projection (5e) for pressing the limiting component (3).
12. double-headed toothbrush heads according to claim 1, it is characterised in that
The double-headed toothbrush head includes the shroud limit component that the limitation preceding brush (7) is planar moved.
13. double-headed toothbrush heads according to claim 12, it is characterised in that
The shroud limit component is at least two shaft components (10,10),
The preceding brush (7) is provided with the shroud post portion for extending downwardly in the lower surface of pan portion, and is provided with chute in the shroud post portion,
At least two shaft component (10,10) is inserted in the way of it can freely rotate behind the leading section of the brush holder support (1)
Enter the chute,
At least two shaft component (10,10) in preceding brush (7) motion with the top cell wall of the chute and bottom
Cell wall sliding contact.
14. double-headed toothbrush heads according to claim 13, it is characterised in that
Shroud block (7b) is provided with above the chute in the shroud post portion,
The lower surface of the shroud block (7b) is generally aligned in the same plane interior with the top cell wall of the chute.
15. double-headed toothbrush heads according to claim 2, it is characterised in that
The upper surface of the cover plate (5) is formed with least one cover plate projection (5d).
16. double-headed toothbrush heads according to claim 2, it is characterised in that
The leading section of the cover plate (5) is formed with the cover plate open front (5c) for accommodating the preceding brush (7).
17. double-headed toothbrush heads according to claim 16, it is characterised in that
The left and right A/F of the cover plate open front (5c) gradually increases with front is tended to.
A kind of 18. electric toothbrushes, it has the double-headed toothbrush head any one of claim 1~17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312875.9A CN106901858B (en) | 2017-05-05 | 2017-05-05 | Double-head toothbrush head and electric toothbrush provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312875.9A CN106901858B (en) | 2017-05-05 | 2017-05-05 | Double-head toothbrush head and electric toothbrush provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106901858A true CN106901858A (en) | 2017-06-30 |
| CN106901858B CN106901858B (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710312875.9A Active CN106901858B (en) | 2017-05-05 | 2017-05-05 | Double-head toothbrush head and electric toothbrush provided with same |
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| CN (1) | CN106901858B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106901858B (en) | 2020-01-07 |
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