CN109846570A - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
- Publication number
- CN109846570A CN109846570A CN201910298602.2A CN201910298602A CN109846570A CN 109846570 A CN109846570 A CN 109846570A CN 201910298602 A CN201910298602 A CN 201910298602A CN 109846570 A CN109846570 A CN 109846570A
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- China
- Prior art keywords
- groove
- drive rod
- face
- brush head
- electric toothbrush
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000010008 shearing Methods 0.000 abstract description 12
- 230000037431 insertion Effects 0.000 abstract 4
- 238000003780 insertion Methods 0.000 abstract 4
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
- A61C17/3481—Vibrating brush body, e.g. by using eccentric weights
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
The invention discloses an electric toothbrush, comprising: the toothbrush comprises a toothbrush head and a handle, wherein the toothbrush head is detachably inserted in a transmission rod of the handle, an insertion part is arranged in the toothbrush head, when the toothbrush head is inserted in the transmission rod, the free end face of the transmission rod is positioned in the insertion part, a groove connected with the insertion part is arranged on the transmission rod, and the distance from the groove to the free end face is smaller than the depth 3/4 of the insertion part to which the transmission rod can be inserted. The groove is close to the end face of the transmission rod. When the electric toothbrush is vibrated by external force or falls down from a high place, the difference of the acting forces in opposite directions on the two parts of the transmission rod at the two sides of the groove is large, so that the shearing force applied to the transmission rod at the groove is small, and the groove part on the transmission rod is not easy to break due to stress concentration.
Description
Technical field
The present invention relates to device for cleaning teeth field, in particular to a kind of electric toothbrush.
Background technique
Electric toothbrush generally includes the handle and brush head being provided separately, and is equipped with power supply and motor in handle, motor is equipped with
The drive rod of handle is stretched out, brush head is equipped with the fur body directly contacted when brushing teeth with tooth, and brush head inserts the transmission to handle
On bar, when motor operating, motor drives brush head vibration, realizes the brushing directions of electric toothbrush.
Common electric toothbrush on the market, including handle and brush head, brush head are plugged on the drive rod outside handle stretching,
The side that drive rod is located in handle is connected to motor, and drive rod is used for the active force generated to brush head transmitting motor operating, brush
Head high speed vibration under the driving of drive rod, realizes brushing directions.When brushing teeth, brush head is in high speed vibration state, vibration frequency
Between 500 Hz of 200-, if generating biggish relative displacement between brush head and drive rod, tooth will be caused to damage, be
It prevents from big relative displacement is occurring upwards along transmission shafts between brush head and drive rod, usually be arranged on drive rod recessed
Slot, while protrusion corresponding with groove is set in the connecting component in brush head, it is raised and recessed in connecting component in brush head
Slot can prevent brush head from sliding axially along lever is produced together.
Electric toothbrush is shaken or falls from eminence the stress diagram of drive rod in electric toothbrush when throwing, when electronic
When the brush head of toothbrush first lands, drive rod is located at the upward active force that brush head side is applied to drive rod by ground, passes
Lever is located at the downward active force that the position of handle side is applied by gravity, and groove is by by upward active force and effect downwards
The shearing force that power is formed, is easy to happen fracture.And groove is closer from the midpoint of drive rod, and when electric toothbrush is fallen, groove
The shearing force being subject to is bigger, and groove is more easy to happen fracture.
In common electric toothbrush, the groove on drive rod is generally arranged at close to the position at drive rod midpoint, when electronic
When toothbrush falls for some reason, since the power size that two parts of groove both sides drive rod are subject to is close, contrary, drive rod is recessed
The shearing force being subject at slot is larger, is easy to happen fracture.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of electric toothbrush, the groove setting position on drive rod in the prior art is overcome
Rest against nearly drive rod midpoint and caused by drive rod frangibility the shortcomings that.
In a first aspect, the embodiment of this specification discloses a kind of electric toothbrush, comprising: brush head, handle, the brush head
It is removably inserted on the drive rod of handle, inserting part is equipped in the brush head, when the brush head is plugged on the transmission
When on bar, the free end face of the drive rod is located at the inserting partial interior, and the drive rod is equipped with and the cartridge part
Divide the groove of connection, it is pluggable to the inserting part that the distance of the groove to the free end face 6 is less than the drive rod
The 3/4 of depth.
Further, it is pluggable to the cartridge part to be less than the drive rod for the distance of the groove to the free end face
Divide the 1/3 of depth.
Further, it is pluggable to the cartridge part to be less than the drive rod for the distance of the groove to the free end face
Divide the 1/4 of depth.
Further, the distance of the groove to the free end face is that the drive rod is pluggable to the inserting part
The 1/6 of depth.
Further, the groove is in the annular formed around drive rod, depth and the groove when the groove
When locating the ratio between minimum diameter of drive rod less than 1:2, the distance of the groove to the free end face is groove transmission
1-5 times of bar minimum diameter, and 5 times of the groove drive rod minimum diameter are pluggable less than the drive rod to described slotting
Fill the 3/4 of partial depth.
Further, the distance of the groove to the free end face is 1-15 times of the depth of groove, the groove
It is pluggable to the 3/4 of the inserting partial depth that 15 times of depth are less than the drive rod.
Further, the drive rod is round bar, and the drive rod is equipped with from the free end face along the drive rod
Axially extending the first plane and the second plane, first plane and second plane are oppositely arranged, the inserting part
It is equipped with third plane corresponding with first plane and fourth plane corresponding with second plane.
Further, the groove to the free end face distance less than the first plane along the length of drive rod axial direction,
Again smaller than the second plane along the length of drive rod axial direction.
Further, the cross section of the groove is trapezoidal or triangle, the side of the groove and the groove top surface
Between angle 145o-175oBetween.
Further, the inserting part is equipped with elastic component, and the elastic component is equipped with corresponding with the groove
Protrusion, the inserting part are equipped with the aperture opposite with the elastic component position.
Compared with prior art, a kind of electric toothbrush that this specification provides, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, the drive rod is equipped with the groove connecting with the inserting part, and the groove leans on
The end face of the nearly drive rod.Since the groove on drive rod is close to the end face of drive rod, electric toothbrush by external force shake or from
When eminence is thrown, the contrary amount of force difference that the two parts of drive rod on groove both sides are subject to is very big, therefore passes
Lever is smaller in the shearing force that groove is subject to, it is not easy to the groove position stress on drive rod be caused to concentrate and occur disconnected
It splits.
Detailed description of the invention
Fig. 1 is the stress diagram of drive rod when electric toothbrush is fallen in background technique；
Fig. 2 is a kind of structural schematic diagram for electric toothbrush that this specification provides；
Fig. 3 is Section A-A schematic diagram in this specification Fig. 2；
Fig. 4 is section B-B schematic diagram in this specification Fig. 2；
Fig. 5 is C-C schematic cross-section in this specification Fig. 2；
Fig. 6 is D-D schematic cross-section in this specification Fig. 2；
Fig. 7 is E in this specification Fig. 2 to enlarged drawing；
Fig. 8 is a kind of drive rod of electric toothbrush of this specification and the structural schematic diagram of handle.
In figure:
1 is brush head, and 2 be handle, and 4 be drive rod, and 42 be short side, and 43 be the second long side part, and 44 be the first long side part, 5
To insert part, 51 be elastic component, and 6 be free end face, and 7 be groove.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings
Component can arrange and design with a variety of different configurations.Therefore, the implementation of the invention to providing in the accompanying drawings below
The detailed description of example is not intended to limit the range of claimed invention, but is merely representative of the selected of the utility model
Embodiment.Based on the embodiment of the present invention, those skilled in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
In the present specification, a kind of electric toothbrush is provided, is described in detail one by one in the following embodiments.
Fig. 2 shows a kind of structural schematic diagrams for electric toothbrush that the one of embodiment of this specification provides.Such as Fig. 2 institute
Show, a kind of electric toothbrush, comprising: brush head 1, handle 2, brush head 1 are removably inserted on the drive rod 4 of handle 2, in brush head 1
Equipped with inserting part 5, when brush head 1 is plugged on the drive rod 4, the free end face 6 of drive rod 4 is located in inserting part 5
Portion, drive rod 4 is equipped with the groove 7 connecting with inserting part 5, as shown in fig. 7, the distance L1 of groove 7 to free end face 6 is less than
Drive rod 4 it is pluggable to inserting 5 depth L2 of part 3/4, at this point, groove 7 close to drive rod 4 free end face 6 and from transmission
The midpoint of bar 4 is farther out.Since groove 7 is close to the end face of drive rod 4, when electric toothbrush is shaken by external force or thrown from eminence, pass
The contrary amount of force difference that the two parts of lever 4 on 7 both sides of groove are subject to is very big, therefore drive rod 4 is in groove 7
The shearing force that place is subject to is smaller, it is not easy to the 7 position stress of groove on drive rod 4 be caused to concentrate and be broken.
As shown in Figure 1, drive rod 4 is by upward directed force F 2 and downward directed force F 1 when electric toothbrush is fallen.
Power F2 is distributed load q1 and free end face 6 to the product of the distance L2 of groove 7, and power F1 is distributed load q2 and groove 7 to passing
The product for the motor junction distance L3 that lever 4 shakes with driving drive rod 4.The shearing force being subject at groove 7 be power F1 and
Smaller F2 in F2, the shearing stress τ=F2/A being subject at groove 7=q1*L4/ A, A are the minimum area of 7 cross section of groove.Cause
This, groove 7 is closer with a distance from free end face 6, and the shearing stress being subject at groove 7 is smaller, and the area of cross section is got at groove 7
Greatly, the shearing stress being subject at groove 7 is smaller, and drive rod 4 is more not easily broken.
The power supply of the motor for driving brush head 1 to shake and drive motor operating, one end of drive rod 4 and horse are equipped in handle 2
Up to connection, the other end is plugged in brush head 1, and when motor is opened, drive rod 4 drives brush head to shake with the frequency of 200-500Hz.
Drive rod 4 can be the shapes such as cylindrical type, rectangle, pyramid type.Drive rod 4 in Fig. 2 is cylindrical type bar, and groove 7 is in circular
The annular that drive rod 4 is circumferentially formed.When drive rod 4 is cylindrical type bar, when the inserting of drive rod 4 is into brush head 1, passed in brush head 1
Lever 4 is equipped with from the free end face 6 of drive rod 4 along the first plane and the second plane that the drive rod 4 is axially extending, the
One plane and the second plane are oppositely arranged, the distance of groove 7 to free end face 6 length axial along drive rod 4 less than the first plane
Degree, the length axial along drive rod 4 again smaller than the second plane make drive rod 4 and brush when drive rod 4 is driven with brush head 1
First 1 be connected firmly, prevents brush head 1 from big vibration, damage tooth occurring in use.
The inserting part 5 connecting with drive rod 4 is equipped in brush head 1, inserting part 5 is equipped with corresponding with the first plane
Third plane and fourth plane corresponding with the second plane.Insert part 5 be equipped with elastic component 51, elastic component 51 be equipped with
The corresponding protrusion of groove 7.Grafting between drive rod 4 and inserting part 5 is convenient, and inserting part 5 is equipped with and elastic component
The opposite aperture in 52 positions.The third plane and the first plane for inserting part 5 cooperate, fourth plane and the cooperation of the second plane, energy
Enough stop the rotation of drive rod 4, reaching swings drive rod 4 by a small margin, to drive the purpose of 1 high speed vibration of brush head.
Along the axial direction of drive rod 4, the cross-sectional shape of groove 7 is including but not limited to trapezoidal, triangle, arc-shaped etc..For
Keep brush head 1 easy to loading and unloading, when the cross section of groove 7 is trapezoidal or triangle, between the side of groove and the groove top surface
Angle 145o-175oBetween, it is sliding along axial big displacement to make not occurring between brush head 1 and drive rod 4 when using brush head 1
Dynamic, what is be arranged on elastic component 51 should have corresponding identical shape with groove 7 with the corresponding protrusion of groove 7.
Part 5 is inserted close to the closed at one end of 1 bristle of brush head, since groove 7 is close to the free end face 6 of drive rod 4, inserting
Elastic component 51 on part 5 also should be close to the closed end of inserting part 5.Preferably, one end of elastic component 51 and inserting part 5
End face connection.The side wall of part 5 is inserted equipped with the through-hole for accommodating elastic component 51, one end and cartridge part of elastic component 51
Divide the side wall connection of 5 through-holes, the protrusion on elastic component 51 is located at the inside of inserting part 5.Elastic component 5 include but is not limited to by
There are metalwork, the plastic part of certain elasticity when extruding.Elastic component 51 can be integrally formed with inserting part 5, as shown in Figure 2.Bullet
Property part 51 be also possible to be fixedly connected on the metalwork on inserting part 5.
As shown in figure 8, groove 7 divides drive rod 4 for short side 42 and long side, for axially extending and being oppositely arranged
Long side is divided into the second long side part 43 close to the first long side part 44 of groove 7 and from groove 7 relatively far away from by one plane.
Fig. 3 is the structural schematic diagram of Section A-A in Fig. 2.A part of short side 42 a part and the second plane including the first plane,
The face adjacent with the first plane and the second plane of short side 42 is connected with elastic component 51.
Groove 7 is annular setting, and Fig. 4 is the structural schematic diagram of section B-B in Fig. 2, the cross section of drive rod 4 at groove 7
For circle, the drive rod 4 at groove 7 connect with the protrusion on elastic component 51, groove 7 with it is raised be connected to play prevent brush head
1 effect to fall off from drive rod 4.
Fig. 5 is the structural schematic diagram in the section C-C in Fig. 2, another part of the first long side part 44 including the first plane and
Another part of second plane, the first long side part 44 and short side 42 play the limit that limitation drive rod 4 rotates together and make
With.The bristle face that can be used to be implanted into bristle is provided on brush head 1, the first plane and the second plane are parallel with bristle face, and first
Plane and the second plane are different along the axial length of drive rod 4, and first plane close from the bristle face on brush head 1 is along drive rod 4
Axial length is long along the axial length of drive rod 4 compared with second plane remote from bristle face, to prevent brush head 1 in the driving of motor
When lower high speed vibration, the damage tooth due to position-limiting action power of the first plane is insufficient.The second plane length axial along drive rod 4
It is relatively short, it can not only play and position-limiting action is played to brush head 1, and is smaller to the reduction of drive rod semi-finals degree, make drive rod
4 are not susceptible to be broken.The lower part of Fig. 4 is the gap between elastic component 51 and inserting part 5.
Fig. 6 is the structural schematic diagram in the section D-D in Fig. 2, the cross section of the second long side part 43 and inserting part 5 it is transversal
Face is rounded.
Inserting part 5 and brush head 1 in Fig. 2 are two sseparated structural members, and inserting part 5 is plugged on brush head 1 by proximal end
In the internal cavity in face.
Drive rod 4 is cylindrical type stock, axially extends and the first plane being oppositely arranged and the second plane are set to short side
Side 42 and long side 43.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, when brush head is plugged on the drive rod, the free end face of drive rod is located at described
Partial interior is inserted, drive rod is equipped with the groove connecting with inserting part, and the distance of groove to the free end face, which is less than, to be passed
Lever is pluggable to the 1/3 of the inserting partial depth.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, when institute's brush head is plugged on drive rod, the free end face of drive rod is located at cartridge part
Divide the groove internal, drive rod is equipped with and inserting part is connect, the distance of groove to free end face is pluggable less than drive rod
To the 1/4 of inserting partial depth.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, when institute's brush head is plugged on drive rod, the free end face of drive rod is located at cartridge part
Divide the groove internal, drive rod is equipped with and inserting part is connect, the distance of groove to free end face arrives for drive rod is pluggable
Insert the 1/6 of partial depth.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, when institute's brush head is plugged on drive rod, the free end face of drive rod is located at cartridge part
Divide the groove internal, drive rod is equipped with and inserting part is connect.
When falling to reduce electric toothbrush, the shearing force being subject at drive rod upper groove, the length of groove both sides drive rod
Degree gap be the bigger the better, but groove and transmission rod end surface spacing it is too close when, the side of groove can be destroyed, so as to cause transmission
Bar is damaged and cannot be used continuously.In addition, the material of drive rod is different, the anti-shearing force intensity at drive rod upper groove is not
Together, the material of the drive rod of electric toothbrush includes but is not limited to stainless steel, cast iron, plastics etc., and resisting at drive rod upper groove is disconnected
The shape of resistance to spalling and groove, depth etc. are also related.In order to keep brush head inserting convenient, the groove of drive rod is usually around transmission
Bar and the annular formed, the depth of annular groove and the ratio between the minimum diameter of groove drive rod should be less than 1:2, the depth of groove
It spends and easily causes the drive rod of groove to be broken greatly.Preferably, when the depth of the groove of annular and the minimum of groove drive rod
When diameter ratio is less than 1:2, the distance of groove to free end face is 1-5 times of minimum diameter of groove drive rod, and groove
5 times for locating drive rod minimum diameter are pluggable less than drive rod to the 3/4 of inserting partial depth.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, brush head are removably inserted into the biography of handle
Inserting part is equipped in lever, in brush head, when institute's brush head is plugged on drive rod, the free end face of drive rod is located at cartridge part
Divide the groove internal, drive rod is equipped with and inserting part is connect, groove is in the annular formed around drive rod, when groove
When the ratio between minimum diameter of depth and groove drive rod is less than 1:2, the distance of the groove to free end face is groove biography
1.5-3 times of lever minimum diameter, and 3 times of groove drive rod minimum diameter are less than pluggable arrive of drive rod and insert part deeply
The 3/4 of degree.
This specification also provides a kind of electric toothbrush, brush head, handle, and brush head is removably inserted into the drive rod of handle
On, inserting part is equipped in brush head, when institute's brush head is plugged on drive rod, the free end face of drive rod is located in inserting part
Portion, drive rod are equipped with the groove connecting with inserting part, and groove is in the annular formed around drive rod, when the depth of groove
When being less than 1:2 with the ratio between the minimum diameter of groove drive rod, the distance of the groove to free end face is groove drive rod
1-2 times of minimum diameter, and 2 times of groove drive rod minimum diameter are less than pluggable arrive of drive rod and insert the 3/ of partial depth
4。
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, which is characterized in that the brush head is removably
It is inserted on the drive rod of handle, inserting part, when the brush head is plugged on the drive rod, institute is equipped in the brush head
The free end face for stating drive rod is located at the inserting partial interior, and the drive rod is recessed equipped with connecting with the inserting part
Slot, inserting part are equipped with the elastic component connecting with drive rod, and elastic component is equipped with protrusion corresponding with the groove, inserting
Part is equipped with the aperture opposite with elastic component position.
Since groove shapes, depth and drive rod material are different, the stress intensity that groove transmission bar part can carry
Difference, when electric toothbrush is shaken by external force or is thrown from eminence, in order to reduce the stress carried at drive rod upper groove, together
When guarantee not occurring to slide along axial big displacement in high speed vibration between drive rod and brush head, groove to free end face away from
From 1-15 times for depth of groove, it is pluggable to the 3/4 of the inserting partial depth that 15 times of depth of groove are less than drive rod.
This specification also provides a kind of electric toothbrush, comprising: brush head, handle, which is characterized in that the brush head is removably
It is inserted on the drive rod of handle, inserting part, when the brush head is plugged on the drive rod, institute is equipped in the brush head
The free end face for stating drive rod is located at the inserting partial interior, and the drive rod is recessed equipped with connecting with the inserting part
Slot, inserting part are equipped with the elastic component connecting with drive rod, and elastic component is equipped with protrusion corresponding with the groove, inserting
Part is equipped with the aperture opposite with elastic component position.
Since groove shapes, depth and drive rod material are different, the stress intensity that groove transmission bar part can carry
Difference, when electric toothbrush is shaken by external force or is thrown from eminence, in order to reduce the stress carried at drive rod upper groove, together
When guarantee not occurring to slide along axial big displacement in high speed vibration between drive rod and brush head, groove to free end face away from
From 2-7 times for depth of groove, it is pluggable to the 3/4 of the inserting partial depth that 7 times of depth of groove are less than drive rod.
This specification also provides a kind of electric toothbrush, comprising: includes: brush head, handle, which is characterized in that the brush head can
It is releasably inserted on the drive rod of handle, inserting part is equipped in the brush head, when the brush head is plugged on the drive rod
When upper, the free end face 6 of the drive rod is located at the inserting partial interior, and the drive rod is equipped with and the inserting part
The groove of connection, inserting part are equipped with the elastic component connecting with drive rod, and elastic component is equipped with corresponding with the groove
Protrusion, inserting part are equipped with the aperture opposite with elastic component position.
Since groove shapes, depth and drive rod material are different, the stress intensity that groove transmission bar part can carry
Difference, when electric toothbrush is shaken by external force or is thrown from eminence, in order to reduce the stress carried at drive rod upper groove, together
When guarantee not occurring to slide along axial big displacement in high speed vibration between drive rod and brush head, groove to free end face away from
From 3-5 times for depth of groove, it is pluggable to the 3/4 of the inserting partial depth that 5 times of depth of groove are less than drive rod.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, appoints
What those familiar with the art within the technical scope disclosed by the utility model, can easily think of the change or the replacement,
It should be covered within the scope of the utility model.Therefore, protection scope of the present invention is answered described with claim
Subject to protection scope.
Claims (10)
1. a kind of electric toothbrush, comprising: brush head, handle, which is characterized in that the brush head is removably inserted into the transmission of handle
Inserting part, when the brush head is plugged on the drive rod, the free end of the drive rod are equipped on bar, in the brush head
Face is located at the inserting partial interior, and the drive rod is equipped with the groove connecting with the inserting part, the groove to institute
The distance for stating free end face is pluggable less than the drive rod to the 3/4 of the inserting partial depth.
2. electric toothbrush as described in claim 1, which is characterized in that the distance of the groove to the free end face is less than institute
It is pluggable to the 1/3 of the inserting partial depth to state drive rod.
3. electric toothbrush as claimed in claim 2, which is characterized in that the distance of the groove to the free end face is less than institute
It is pluggable to the 1/4 of the inserting partial depth to state drive rod.
4. electric toothbrush as claimed in claim 3, which is characterized in that the distance of the groove to the free end face is described
Drive rod is pluggable to the 1/6 of the inserting partial depth.
5. electric toothbrush as described in claim 1, which is characterized in that the groove is in the annular formed around drive rod,
When the ratio between minimum diameter of the depth of the groove and the groove drive rod is less than 1:2, the groove to the freedom
The distance of end face is 1-5 times of the groove drive rod minimum diameter, and 5 times of the groove drive rod minimum diameter are small
It is pluggable to the 3/4 of the inserting partial depth in the drive rod.
6. electric toothbrush as described in claim 1, which is characterized in that the distance of the groove to the free end face is described
1-15 times of depth of groove, it is pluggable to the 3/ of the inserting partial depth that 15 times of the depth of groove are less than the drive rod
4。
7. electric toothbrush as claimed in any one of claims 1 to 6, which is characterized in that the drive rod is round bar, the biography
Lever is equipped with from the free end face along the first plane and the second plane that the drive rod is axially extending, and described first is flat
Face and second plane are oppositely arranged, the inserting part be equipped with third plane corresponding with first plane and with
The corresponding fourth plane of second plane.
8. electric toothbrush as claimed in claim 7, which is characterized in that the distance of the groove to the free end face is less than
One plane along drive rod axial direction length, again smaller than the second plane along the length of drive rod axial direction.
9. electric toothbrush as claimed in claim 7, which is characterized in that the cross section of the groove is trapezoidal or triangle, institute
The angle between the side of groove and the groove top surface is stated 145o-175oBetween.
10. electric toothbrush as claimed in claim 7, which is characterized in that the inserting part is equipped with elastic component, the elasticity
Part is equipped with protrusion corresponding with the groove, and the inserting part is equipped with the aperture opposite with the elastic component position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241667.5A CN114652476A (en) | 2019-04-15 | 2019-04-15 | Brush head for electric toothbrush and electric toothbrush with same |
| CN201910298602.2A CN109846570A (en) | 2019-04-15 | 2019-04-15 | Electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298602.2A CN109846570A (en) | 2019-04-15 | 2019-04-15 | Electric toothbrush |
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|---|---|---|---|
| CN202210241667.5A Division CN114652476A (en) | 2019-04-15 | 2019-04-15 | Brush head for electric toothbrush and electric toothbrush with same |
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| CN109846570A true CN109846570A (en) | 2019-06-07 |
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| CN201910298602.2A Pending CN109846570A (en) | 2019-04-15 | 2019-04-15 | Electric toothbrush |
| CN202210241667.5A Pending CN114652476A (en) | 2019-04-15 | 2019-04-15 | Brush head for electric toothbrush and electric toothbrush with same |
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| CN202210241667.5A Pending CN114652476A (en) | 2019-04-15 | 2019-04-15 | Brush head for electric toothbrush and electric toothbrush with same |
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| CN (2) | CN109846570A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005312617A (en) * | 2004-04-28 | 2005-11-10 | Izumi Products Co | Electric toothbrush appliance |
| CN101557775A (en) * | 2006-12-18 | 2009-10-14 | 布劳恩股份有限公司 | Toothbrush and attachment therefor |
| CN101902986A (en) * | 2007-12-18 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | Brush/the handle interface that is used for electric toothbrush |
| CN102065793A (en) * | 2008-06-20 | 2011-05-18 | 博朗有限公司 | Electric tooth brush |
| WO2011132878A2 (en) * | 2010-04-23 | 2011-10-27 | Kang Su Chol | Head of bristles for electric toothbrush |
| CN210019753U (en) * | 2019-04-15 | 2020-02-07 | 广州皓醒湾科技有限公司 | Electric toothbrush |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812804A1 (en) * | 2000-08-11 | 2002-02-15 | Addway Eng Ltd | ELECTRIC TOOTHBRUSH |
| WO2012085752A1 (en) * | 2010-12-20 | 2012-06-28 | Koninklijke Philips Electronics N.V. | Brushhead for a power toothbrush with a wedge and spring handle interface |
| CN207041590U (en) * | 2017-02-23 | 2018-02-27 | 深圳市加卓特科技有限公司 | Electric toothbrush head and electric toothbrush |
-
2019
- 2019-04-15 CN CN201910298602.2A patent/CN109846570A/en active Pending
- 2019-04-15 CN CN202210241667.5A patent/CN114652476A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005312617A (en) * | 2004-04-28 | 2005-11-10 | Izumi Products Co | Electric toothbrush appliance |
| CN101557775A (en) * | 2006-12-18 | 2009-10-14 | 布劳恩股份有限公司 | Toothbrush and attachment therefor |
| CN101902986A (en) * | 2007-12-18 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | Brush/the handle interface that is used for electric toothbrush |
| CN102065793A (en) * | 2008-06-20 | 2011-05-18 | 博朗有限公司 | Electric tooth brush |
| WO2011132878A2 (en) * | 2010-04-23 | 2011-10-27 | Kang Su Chol | Head of bristles for electric toothbrush |
| CN210019753U (en) * | 2019-04-15 | 2020-02-07 | 广州皓醒湾科技有限公司 | Electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114652476A (en) | 2022-06-24 |
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Address after: 918, No.9, Linhe West Road, Tianhe District, Guangzhou, Guangdong 510665:C) (not for factory use) (office use only) 510665 918, No.9, Linhe West Road, Tianhe District, Guangzhou City, Guangdong Province (Location: C) (not for factory use) (office use only) Applicant after: Guangzhou haoxingwan Technology Co.,Ltd. Address before: 918, No.9, Linhe West Road, Tianhe District, Guangzhou, Guangdong 510665:C) (not for factory use) (office use only) 510665 918, No.9, Linhe West Road, Tianhe District, Guangzhou City, Guangdong Province (Location: C) (not for factory use) (office use only) Applicant before: GUANGZHOU HAOXING BAY SCIENCE AND TECHNOLOGY Co.,Ltd. Address after: Room 2001, 2002, 2003, 2004, 2005, 239 Tianhe North Road, Tianhe District, Guangzhou, Guangdong 510000 Applicant after: Guangzhou Xingxing Yuedong Co.,Ltd. Address before: 918, No.9, Linhe West Road, Tianhe District, Guangzhou, Guangdong 510665:C) (not for factory use) (office use only) 510665 918, No.9, Linhe West Road, Tianhe District, Guangzhou City, Guangdong Province (Location: C) (not for factory use) (office use only) Applicant before: Guangzhou haoxingwan Technology Co.,Ltd. |