CN115137514A - Electric toothbrush rotating structure and electric toothbrush - Google Patents
Electric toothbrush rotating structure and electric toothbrush Download PDFInfo
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- CN115137514A CN115137514A CN202210809460.3A CN202210809460A CN115137514A CN 115137514 A CN115137514 A CN 115137514A CN 202210809460 A CN202210809460 A CN 202210809460A CN 115137514 A CN115137514 A CN 115137514A
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- reciprocating
- rotating
- electric toothbrush
- swing
- symmetrical eccentric
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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
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
本发明涉及一种电动牙刷转动结构，包括壳体、刷头、转动轴、往复运动件以及对称偏心轮件，刷头可转动的设置在壳体上，往复运动件以及对称偏心轮件设置在壳体内部，往复运动件与刷头活动连接，转动轴一端与对称偏心轮件轴固定、并能够驱动对称偏心轮件转动，对称偏心轮件在转动状态下与往复运动件周期性接触并能够驱动往复运动件往复运动，往复运动件在往复运动的状态下带动刷头摆动，本发明还涉及一种电动牙刷。在本发明中，设置有刷头、往复运动件以及对称偏心轮件，利用对称偏心轮件与往复运动件周期性接触、够驱动往复运动件往复运动，进而带动刷头摆动，将转动运动转换成往复运动，减小牙刷头与牙齿的摩擦行程；起到保护牙釉质的目的。
The invention relates to a rotating structure of an electric toothbrush, comprising a casing, a brush head, a rotating shaft, a reciprocating motion piece and a symmetrical eccentric wheel. Inside the casing, the reciprocating member is movably connected with the brush head, one end of the rotating shaft is fixed to the shaft of the symmetrical eccentric member, and can drive the symmetrical eccentric member to rotate. The reciprocating element is driven to reciprocate, and the reciprocating element drives the brush head to swing in the reciprocating state. The invention also relates to an electric toothbrush. In the present invention, a brush head, a reciprocating member and a symmetrical eccentric member are provided, and the symmetrical eccentric member is periodically contacted with the reciprocating member to drive the reciprocating member to reciprocate, thereby driving the brush head to swing, converting the rotational motion into Reciprocating motion reduces the friction stroke between the toothbrush head and the teeth; it protects the enamel.
Description
Technical Field
The invention relates to the technical field of electric toothbrushes, in particular to an electric toothbrush rotating structure and an electric toothbrush.
Background
Toothbrushes are used for cleaning teeth, and the market mainly includes manually operated toothbrushes and electric toothbrushes, wherein the electric toothbrushes can clean teeth more thoroughly, remove dental plaque, reduce gingivitis and gingival bleeding compared to manually operated toothbrushes, and thus are highly preferred. Electric toothbrushes generally comprise a toothbrush body, which is basically not preferred, and a toothbrush head, which is frequently replaced to maintain cleanliness and good cleaning effects.
For example, patent CN201922107305.3 provides a toothbrush head comprising: the shell comprises a first shell and a second shell, the first shell is provided with a bearing, and the second shell is provided with a mounting port and a shaft sleeve; the driving gear can be connected with one end of a transmission shaft of the toothbrush, and the other end of the transmission shaft is connected with a power source; the driven gear is meshed with the driving gear, and the driven gear is vertical to the rotating direction of the driving gear; the driven gear is fixedly arranged on the rotating column, an installation hole is formed in the rotating column, the installation hole penetrates through two end faces of the rotating column, one end of the rotating column is installed in the installation hole, and the rotating column penetrates through the bearing and the shaft sleeve; the rotating column is provided with a first convex edge and a second convex edge, the bearing is arranged between the first convex edge and the first shell, and the shaft sleeve is arranged between the second convex edge and the second shell. The principle is as follows: the axial rotation is converted into the vertical rotation of the brush head through the bevel gear on the rotating shaft, so that the brush head is driven to rotate.
However, it has the following problems: the motion track of the brush head is rotation instead of swing, and the mechanical abrasion to the enamel of the user is serious.
Disclosure of Invention
In view of the above, it is desirable to provide a rotating structure of an electric toothbrush and an electric toothbrush to solve the problem of enamel abrasion in the prior art.
In order to solve the above technical problems, the present invention provides a rotation structure of an electric toothbrush, comprising: casing, brush head, axis of rotation, reciprocating motion spare and symmetrical eccentric wheel spare, the rotatable setting of brush head is in on the casing, reciprocating motion spare and symmetrical eccentric wheel spare sets up inside the casing, reciprocating motion spare with brush head swing joint, axis of rotation one end with symmetrical eccentric wheel spare axle is fixed, can drive symmetrical eccentric wheel spare rotates, symmetrical eccentric wheel spare under the rotation state with reciprocating motion spare periodic contact can drive reciprocating motion spare reciprocating motion, reciprocating motion spare drives under reciprocating motion's the state brush head swing.
Preferably, the casing includes front end shell, middle-end shell, the front end shell with the connection can be dismantled to the middle-end shell, the inside front end swing chamber that forms of front end shell, the inside one that forms of middle-end shell with the middle-end rotation chamber of front end swing chamber intercommunication, the brush head sets up on the front end shell, reciprocating motion spare and symmetrical eccentric wheel spare sets up the front end swing intracavity, axis of rotation one end is worn to locate the middle-end rotates the chamber and stretches into the front end swing intracavity, with symmetrical eccentric wheel spare is connected.
Preferably, the brush head comprises a brush disc and a swing connecting piece, the swing connecting piece is arranged in the front end swing cavity and is connected with the inner wall of the front end swing cavity in a rotating mode, the brush disc is detachably connected with the swing connecting piece, and a plurality of bristles are arranged on the brush disc.
Preferably, the inner wall of the front end swing cavity extends to form a protruding shaft, a groove matched with the protruding shaft is formed at the position corresponding to the protruding shaft of the swing connecting piece, the protruding shaft extends into the groove, and the swing connecting piece can only swing by taking the protruding shaft as the shaft.
Preferably, the center of the swing connecting piece extends along the axial direction to form a fixed lug, a fixed groove matched with the fixed lug is formed in the position corresponding to the fixed lug on the brush disc, and the fixed lug can form interference connection with the fixed groove.
Preferably, one surface of the reciprocating element facing the rotating shaft is provided with an accommodating groove for accommodating the symmetrical eccentric wheel element, and the reciprocating element is embedded in the front end swinging cavity.
Preferably, a limiting lug is arranged on the outer surface of the reciprocating motion piece, a limiting groove matched with the limiting lug is arranged on the inner wall of the front end swinging cavity, the limiting lug extends into the limiting groove, and the limiting groove limits the reciprocating motion piece to move along the axial direction of the rotating shaft.
Preferably, the reciprocating motion piece orientation has seted up the spread groove on the one side of swing connecting piece, extend on the swing connecting piece form one with spread groove assorted connector, the connector stretches into in the spread groove.
Preferably, the cross section of the symmetrical eccentric wheel member along the plane perpendicular to the rotation axis is a reuleaux triangle.
The invention also provides an electric toothbrush, which comprises the electric toothbrush rotating structure, a toothbrush handle and a rotating motor, wherein the toothbrush handle is detachably connected with the shell, and the rotating motor is arranged in the toothbrush handle, is connected with the rotating shaft and can drive the rotating shaft to rotate.
The toothbrush is provided with a toothbrush head, a reciprocating motion part and a symmetrical eccentric wheel part, wherein the symmetrical eccentric wheel part is periodically contacted with the reciprocating motion part and can drive the reciprocating motion part to reciprocate so as to drive the toothbrush head to swing, so that the rotary motion is converted into the reciprocating motion, and the friction stroke of the toothbrush head and teeth is reduced; the purpose of protecting the tooth enamel is achieved.
The foregoing is a summary of the present invention, and the following is a detailed description of the preferred embodiments of the present invention in order to provide a clear understanding of the technical features of the present invention.
Drawings
FIG. 1 is a schematic top view of a rotary structure of an electric toothbrush according to the present invention;
FIG. 2 is a schematic front view of a rotary structure of the electric toothbrush according to the present invention;
FIG. 3 is a schematic cross-sectional view AA of FIG. 1;
FIG. 4 is a schematic cross-sectional view AA in FIG. 2;
FIG. 5 is an exploded view of the present invention providing a rotational structure of a power toothbrush;
in the figure: 1-shell, 11-front-end shell, 111-front-end swinging cavity, 112-front-end shell base plate, 113-front-end shell upper cover, 114-protruding shaft, 115-limiting groove, 12-middle-end shell, 121-middle-end rotating cavity, 122-middle-end shell base plate, 123-middle-end shell upper cover, 2-brush head, 21-brush disc, 211-fixing groove, 22-swinging connecting piece, 221-groove, 222-fixing lug, 223-connecting head, 3-rotating shaft, 4-reciprocating piece, 41-accommodating groove, 42-limiting lug, 43-connecting groove and 5-symmetrical eccentric wheel piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 5, the present embodiment discloses a rotation structure of an electric toothbrush, which includes: casing 1, brush head 2, axis of rotation 3, reciprocating motion piece 4 and symmetrical eccentric wheel spare 5, brush head 2 rotatable setting is in on the casing 1, reciprocating motion piece 4 and symmetrical eccentric wheel spare 5 sets up inside the casing 1, reciprocating motion piece 4 with brush head 2 swing joint, 3 one end of axis of rotation with 5 axle fixings of symmetrical eccentric wheel spare, and can drive symmetrical eccentric wheel spare 5 rotates, symmetrical eccentric wheel spare 5 under the rotation state with reciprocating motion 4 periodic contact can drive reciprocating motion 4 reciprocating motion, reciprocating motion piece 4 drives under reciprocating motion's the state brush head 2 swings.
In the invention, the toothbrush head 2, the reciprocating motion piece 4 and the symmetrical eccentric wheel piece 5 are arranged, the symmetrical eccentric wheel piece 5 is periodically contacted with the reciprocating motion piece 4 and can drive the reciprocating motion piece 4 to reciprocate, so that the toothbrush head 2 is driven to swing, the rotary motion is converted into the reciprocating motion, and the friction stroke of the toothbrush head and teeth is reduced; the purpose of protecting the tooth enamel is achieved.
Specifically, casing 1 includes front end shell 11, middle-end shell 12, front end shell 11 with middle-end shell 12 can dismantle the connection, the inside front end swing chamber 111 that forms of front end shell 11, the inside one that forms of middle-end shell 12 with the middle-end rotation chamber 121 of front end swing chamber 111 intercommunication, brush head 2 sets up on front end shell 11, reciprocating motion piece 4 and symmetrical eccentric wheel spare 5 sets up in the front end swing chamber 111, 3 one ends of axis of rotation are worn to locate the middle-end rotates chamber 121 and stretches into in the front end swing chamber 111, with symmetrical eccentric wheel spare 5 is connected.
Further, front end housing 11 includes front end housing bottom plate 112 and front end housing upper cover 113, front end housing bottom plate 112 with 113 joints of front end housing upper cover, front end housing bottom plate 112 and a plurality of recesses have been seted up on the front end housing upper cover 113, the recess is constituteed front end swing chamber 111.
Further, the middle-end housing 12 includes a middle-end housing bottom plate 122 and a middle-end housing upper cover 123, the middle-end housing bottom plate 122 and the middle-end housing upper cover 123 are connected in a clamping manner, a plurality of grooves are formed in the middle-end housing bottom plate 122 and the middle-end housing upper cover 123, and the grooves form the middle-end rotating cavity 121.
Specifically, brush head 2 includes brush dish 21 and swing connecting piece 22, swing connecting piece 22 sets up in front end swing chamber 111 and with the inner wall in front end swing chamber 111 rotates to be connected, brush dish 21 with swing connecting piece 22 can dismantle the connection, be provided with a plurality of brush hairs on the brush dish 21. When the brush head is replaced, only the brush disc 21 needs to be taken down and replaced by a new brush disc 21, compared with the existing mode of replacing the brush head of the electric toothbrush, the replaced parts are smaller and more exquisite, and the replacement cost can be reduced.
The swing connecting piece 22 has a plurality of modes of being connected with the inner wall of the front end swing cavity 111 in a rotating manner, in this embodiment, the inner wall of the front end swing cavity 111 extends to form a protruding shaft 114, a groove 221 matched with the protruding shaft 114 is formed at the position where the swing connecting piece 22 corresponds to the protruding shaft 114, the protruding shaft 114 extends into the groove 221, and the swing connecting piece 22 can only swing by using the protruding shaft 114 as a shaft.
In other embodiments, a protruding shaft may be formed on the swing connector 22, and a groove matching with the protruding shaft is formed on the inner wall of the front swing cavity 111 at a position corresponding to the protruding shaft.
Further, there are various embodiments in which the brush plate 21 is detachably connected to the swing connection member 22. In this embodiment, a fixing protrusion 222 is formed by extending the center of the swing connector 22 along the axial direction, a fixing groove 211 matched with the fixing protrusion 222 is formed at a position of the brush disc 21 corresponding to the fixing protrusion 222, and the fixing protrusion 222 can form an interference connection with the fixing groove 211. In other embodiments, a fixing protrusion may also be formed on the brush disc 21 in an extending manner, and a fixing groove matched with the fixing protrusion is formed at a position of the swing connector corresponding to the fixing protrusion.
Specifically, one end of the rotating shaft 3 penetrates through the middle-end rotating cavity 121, extends into the front-end swinging cavity 111, and is connected with the symmetrical eccentric wheel piece 5, and the other end of the rotating shaft 3 protrudes relative to the shell 1 and can be connected with an external rotating motor; under the drive of an external rotating motor, the rotating shaft 3 rotates and drives the symmetrical eccentric wheel piece 5 to rotate.
Specifically, one surface of the reciprocating element 4 facing the rotating shaft 3 is provided with an accommodating groove 41 for accommodating the symmetrical eccentric wheel element 5, and the reciprocating element 4 is embedded in the front end swinging cavity 111.
Furthermore, a limiting bump 42 is arranged on the outer surface of the reciprocating element 4, a limiting groove 115 matched with the limiting bump 42 is arranged on the inner wall of the front end swinging cavity 111, the limiting bump 42 extends into the limiting groove 115, and the depth of the limiting groove 115 is smaller than the thickness of the limiting bump 42. The stopper groove 115 restricts the axial movement of the reciprocating member 4 along the rotary shaft 3.
Furthermore, the reciprocating motion piece 4 has been seted up the spread groove 43 towards on the one side of swing connecting piece 22, the last extension of swing connecting piece 22 form one with spread groove 43 assorted connector 223, connector 223 stretches into in the spread groove 43. When the reciprocating member 4 reciprocates, the swing link 22 is driven to swing by the connecting groove 43 and the connecting head 223.
Specifically, the symmetrical eccentric wheel element 5 extends into the accommodating groove 41 and periodically and alternately contacts with the inner wall of the accommodating groove 41, which is arranged oppositely, in a rotating state, so as to drive the symmetrical eccentric wheel element 5 to reciprocate in the front end swing cavity 111.
Furthermore, the circumference of the symmetrical eccentric wheel member 5 is gradually reduced from the end close to the rotating shaft 3 to the end far away from the rotating shaft 3, and due to the fading characteristic of the symmetrical eccentric wheel member 5, when the symmetrical eccentric wheel member 5 and the reciprocating member 4 are assembled, the symmetrical eccentric wheel member 5 does not need to be specially aligned, only the thinner end of the symmetrical eccentric wheel member 5 needs to be inserted into the connecting groove 43, and the assembly efficiency can be effectively improved.
Furthermore, the section of the symmetrical eccentric wheel member 5 along the plane vertical to the rotating shaft 3 is a Lelo triangle; the Lelo triangle can stabilize the center of gravity of the rotating shaft 3 during rotation, reduce the vibration of the toothbrush handle and improve the energy efficiency ratio of transmission conversion. And the rotating shaft 3 is not required to be connected with an expensive ultrasonic vibration motor, and only a rotating motor is required to be connected, so that the cost can be effectively reduced.
The invention also provides an electric toothbrush, which comprises the electric toothbrush rotating structure, a toothbrush handle and a rotating motor, wherein the toothbrush handle is detachably connected with the shell 1, and the rotating motor is arranged in the toothbrush handle, is connected with the rotating shaft 3 and can drive the rotating shaft 3 to rotate.
The toothbrush is provided with the toothbrush head, the reciprocating motion part and the symmetrical eccentric wheel part, the symmetrical eccentric wheel part is in periodic contact with the reciprocating motion part and can drive the reciprocating motion part to do reciprocating motion, so that the toothbrush head is driven to swing, the rotating motion is converted into the reciprocating motion, and the friction stroke of the toothbrush head and teeth is reduced; the purpose of protecting the tooth enamel is achieved.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210809460.3A CN115137514A (en) | 2022-07-11 | 2022-07-11 | Electric toothbrush rotating structure and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210809460.3A CN115137514A (en) | 2022-07-11 | 2022-07-11 | Electric toothbrush rotating structure and electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115137514A true CN115137514A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210809460.3A Pending CN115137514A (en) | 2022-07-11 | 2022-07-11 | Electric toothbrush rotating structure and electric toothbrush |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2593748Y (en) * | 2002-11-26 | 2003-12-24 | 洁齿亮(汕尾)有限公司 | Vertical-brushing electric toothbrush |
| CN1488323A (en) * | 2002-10-11 | 2004-04-14 | 颛清平 | Electric toothbrush |
| CN105434077A (en) * | 2015-12-25 | 2016-03-30 | 深圳市同洁科技有限公司 | Electric toothbrush head and electric toothbrush |
| CN206138224U (en) * | 2016-04-14 | 2017-05-03 | 洪官新 | Oscillating electric toothbrush |
| CN209187032U (en) * | 2018-08-23 | 2019-08-02 | 深圳市茂涵科技有限公司 | A kind of novel portable multifunctional electric toothbrush |
| CN213249928U (en) * | 2020-07-23 | 2021-05-25 | 深圳市捷而舒科技有限公司 | Electric toothbrush brush head with replaceable brush hair component |
| CN215192501U (en) * | 2021-06-29 | 2021-12-17 | 崔宗波 | Movable and rotatable combined electric toothbrush |
-
2022
- 2022-07-11 CN CN202210809460.3A patent/CN115137514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488323A (en) * | 2002-10-11 | 2004-04-14 | 颛清平 | Electric toothbrush |
| CN2593748Y (en) * | 2002-11-26 | 2003-12-24 | 洁齿亮(汕尾)有限公司 | Vertical-brushing electric toothbrush |
| CN105434077A (en) * | 2015-12-25 | 2016-03-30 | 深圳市同洁科技有限公司 | Electric toothbrush head and electric toothbrush |
| CN206138224U (en) * | 2016-04-14 | 2017-05-03 | 洪官新 | Oscillating electric toothbrush |
| CN209187032U (en) * | 2018-08-23 | 2019-08-02 | 深圳市茂涵科技有限公司 | A kind of novel portable multifunctional electric toothbrush |
| CN213249928U (en) * | 2020-07-23 | 2021-05-25 | 深圳市捷而舒科技有限公司 | Electric toothbrush brush head with replaceable brush hair component |
| CN215192501U (en) * | 2021-06-29 | 2021-12-17 | 崔宗波 | Movable and rotatable combined electric toothbrush |
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Application publication date: 20221004 |