CN107080602B - Concentric double-shaft machine core and electric toothbrush using same - Google Patents
Concentric double-shaft machine core and electric toothbrush using same Download PDFInfo
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- CN107080602B CN107080602B CN201710417652.9A CN201710417652A CN107080602B CN 107080602 B CN107080602 B CN 107080602B CN 201710417652 A CN201710417652 A CN 201710417652A CN 107080602 B CN107080602 B CN 107080602B
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- shaft
- inner shaft
- power device
- outer shaft
- conducting strip
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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
- A61C17/32—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
-
- 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
- A61C17/3418—Rotation around the axis of the toothbrush 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
Abstract
The invention discloses a concentric double-shaft machine core and an electric toothbrush using the same, wherein an inner shaft and an outer shaft are concentrically arranged, and a first power device and a second power device which are mutually independent are arranged to respectively drive the inner shaft to rotate or axially move to drive the outer shaft to vibrate in a high-frequency rotating manner.
Description
Technical Field
The invention relates to the technical field of personal care products, in particular to a concentric double-shaft machine core and an electric toothbrush using the same.
Background
Electric toothbrushes are new products that have emerged in recent years, and have revolutionized the field of oral care. Compared with the traditional manual toothbrush, the electric toothbrush has high cleaning efficiency and strong dirt-removing capacity, can promote the blood circulation of the oral cavity, and has a massage effect on gingival tissues.
The existing electric toothbrushes can be divided into two types according to the action principle: one is a sound wave toothbrush, which combines sound wave technology in oral care, a toothbrush head vibrates at high frequency according to designed frequency (which is consistent with or close to sound wave frequency), toothpaste is instantly decomposed into fine foam, and the purpose of cleaning teeth is achieved; the second is a friction toothbrush, similar to a manual toothbrush, which accomplishes the purpose of brushing the teeth by rotation, translation or other form of movement of the powered toothbrush head. The two toothbrushes have advantages and disadvantages: the acoustic toothbrush usually adopts a linear row brush, has a large working surface, has high cleaning efficiency on the surface of teeth, but has weak dirt-removing capability on the slits between the teeth; the circular brush head adopted by the friction toothbrush can realize surrounding type cleaning, has good decontamination effect on tooth gaps, but has lower decontamination rate on the tooth surface.
Disclosure of Invention
The invention provides a concentric double-shaft movement and an electric toothbrush using the same, aiming at simultaneously realizing two modes of sound wave vibration and friction on one electric toothbrush.
The technical scheme adopted by the invention is as follows:
the inner shaft and the outer shaft are concentrically arranged in the shell, the inner shaft can circumferentially rotate or axially move, the outer shaft can circumferentially rotate, and the movement of the inner shaft and the movement of the outer shaft are not interfered with each other; the inner shaft is provided with a first power device, the outer shaft is provided with a second power device, the first power device drives the inner shaft to rotate circumferentially or move axially, and the second power device drives the outer shaft to vibrate in a high-frequency rotating mode.
The first power device comprises a motor and a crank and rocker mechanism, an output shaft of the motor is parallel to and eccentric with the inner shaft, the crank and rocker mechanism comprises a crank, a rocker and a connecting rod, the crank is fixed with the output shaft of the motor, and the rocker is fixed with the inner shaft.
The rear end of the inner shaft completely penetrates through the outer shaft, and the first power device is arranged at the rear end of the inner shaft.
The second power device comprises a stator, a rotor and an electric control module, wherein the stator is fixed in the shell, the rotor is fixed on the outer shaft, and the electric control module acts on the stator or the rotor to generate a magnetic field for high-frequency conversion of magnetic poles.
The stator is a permanent magnet, the rotor is provided with a magnetic core, the magnetic core is wound with a winding and is provided with a conducting strip assembly, and the electric control module acts on the winding through the conducting strip assembly.
The conducting strip assembly comprises an external terminal, an electric brush elastic sheet, a conducting strip and a conducting strip seat, the conducting strip seat is arranged on the outer shaft, the conducting strip is fixed in the conducting strip seat and is electrically connected with the winding, the external terminal is electrically connected to the electric control module, and the electric brush elastic sheet is connected between the external terminal and the conducting strip; the shell is provided with a rear cover, and the external terminal is fixed on the rear cover.
The electric brush elastic sheet is an S-shaped elastic sheet.
The stator and the rotor are arranged in the housing in the axial direction of the outer shaft.
At least one oil-containing bearing is arranged between the inner shaft and the outer shaft.
The utility model provides an use electric toothbrush of above-mentioned concentric biax core, interior axle front end passes through the outer axle completely, interior axle front end establishes a first installation department, the front end of outer axle is equipped with No. two first installation departments of brushing, a brush first installation department installation detachable style of calligraphy row brush, No. two brush first installation department installation detachable circle brush heads.
The invention has the beneficial effects that: the invention adopts the concentric arrangement of the inner shaft and the outer shaft, and is provided with the mutually independent first power device and the second power device, the inner shaft is respectively driven to rotate or axially move, the outer shaft is driven to rotate and vibrate in a high frequency, and the toothbrush heads with different working modes can be replaced at the output ends of the inner shaft and the outer shaft, so that two modes of sound wave vibration and friction can be simultaneously realized on one toothbrush without accessories, and the invention has the advantages of compact structure, non-interference of the two output modes and comprehensive decontamination effect.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
Fig. 3 is an exploded view of an embodiment of the present invention.
Fig. 4 is an exploded view of the inner shaft and the first power device in an embodiment of the invention.
Fig. 5 is an exploded view of the outer shaft and the second power unit in an embodiment of the present invention.
Fig. 6 is an exploded view of a conductive sheet assembly in an embodiment of the present invention.
FIG. 7 is a diagram of a line brush according to an embodiment of the present invention.
FIG. 8 is a schematic view of a round brush head in an embodiment of the invention.
Figure 9 is a schematic view of another round brush head in an embodiment of the invention.
The brush head comprises a shell 1, an inner shaft 2, a first brush head mounting part 21, an outer shaft 3, a second brush head mounting part 31, a first power device 4, a motor 41, a crank rocker mechanism 42, a crank 421, a rocker 422, a connecting rod 423, a second power device 5, a stator 51, a rotor 52, a magnetic core 521, a winding 522, a conducting strip assembly 523, an external terminal 5231, a brush elastic piece 5232, a conducting strip 5233, a conducting strip seat 5234, a rear cover 6 and an oil-retaining bearing 7.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
In an embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the present invention includes a housing 1, in which an inner shaft 2 and an outer shaft 3 are concentrically disposed, the inner shaft 2 is capable of rotating circumferentially or moving axially, the outer shaft 3 is capable of rotating circumferentially, and the movements of the inner shaft 2 and the outer shaft 3 do not interfere with each other; the inner shaft 2 is provided with a first power device 4, the outer shaft 3 is provided with a second power device 5, the first power device 4 drives the inner shaft 2 to rotate circumferentially or move axially, and the second power device 5 drives the outer shaft 2 to vibrate in a high-frequency rotating mode. This embodiment adopts and to set up interior axle 2 and outer axle 3 with one heart to be equipped with power device 4 and No. two power device 5 of mutual independence, drive interior axle 2 rotation or axial displacement respectively, drive outer axle 3 high frequency rotary vibration, through changing different work pieces at the output of interior axle 2 with outer axle 3, need not all the other accessories and just can realize two kinds of power output modes of same core, have compact structure, two kinds of output mode noninterfere's advantage. The term "the movement of the inner shaft 2 and the outer shaft 3 do not interfere with each other" means that the inner shaft 2 and the outer shaft 3 can move simultaneously or independently without any restriction on movement.
In an embodiment, as shown in fig. 3 and 4, the first power device 4 includes a motor 41 and a crank and rocker mechanism 42, an output shaft of the motor 41 is parallel to and eccentric from the inner shaft 2, the crank and rocker mechanism 42 includes a crank 421, a rocker 422 and a connecting rod 423, the crank 421 is fixed to the output shaft of the motor 41, and the rocker 422 is fixed to the inner shaft 2. The crank and rocker mechanism 42 of the structure of the present embodiment is used for converting the rotation of the output shaft of the motor 41 into the reciprocating swing of the inner shaft 2, and the crank and rocker mechanism 42 is a typical mechanism, and is simple in calculation and stable in performance. Generally, the rotation angle of the inner shaft 2 of the reciprocating electric toothbrush is controlled to about 45 °. In the structure of the present embodiment, the inner shaft 2 moves in a reciprocating manner, and in addition, other transmission mechanisms may be adopted to realize reciprocating movement or other types of movement of the inner shaft 2.
In the embodiment, as shown in fig. 3 and 4, the rear end of the inner shaft 2 completely penetrates through the outer shaft 3, and the first power device 4 is arranged at the rear end of the inner shaft 2. The structure of this embodiment, power device 4 and No. two power device 5 can be kept apart completely, provides abundant space for No. two power device 5's installation.
In an embodiment, as shown in fig. 5 and 6, the second power device 5 includes a stator 51, a rotor 52, and an electronic control module, the stator 51 is fixed in the housing 1, the rotor 52 is fixed on the outer shaft 3, and the electronic control module acts on the stator 51 or the rotor 52 to generate a magnetic field with high-frequency switching of magnetic poles; the stator 51 is a permanent magnet, the rotor 52 is provided with a magnetic core 521, the magnetic core 521 is wound with a winding 522 and is provided with a conducting strip assembly 523, and the electronic control module acts on the winding 522 through the conducting strip assembly 523. In this embodiment, the winding 522 is used as the rotor 52 and the permanent magnet is used as the stator 51, and the winding 522 is wound around the magnetic core 521 and then mounted on the outer shaft 3 during processing, so that the processing is convenient and the production efficiency is high.
In an embodiment, as shown in fig. 6, the conductive sheet assembly 523 includes an external terminal 5231, a brush spring 5232, a conductive sheet 5233 and a conductive sheet seat 5234, the conductive sheet seat 5234 is mounted on the outer shaft 3, the conductive sheet 5233 is fixed in the conductive sheet seat 5234 and electrically connected to the winding 522, the external terminal 5231 is electrically connected to the electronic control module, and the brush spring 5232 is connected between the external terminal 5231 and the conductive sheet seat 5233; the housing 1 is provided with a rear cover 6, and the external terminal 5231 is fixed to the rear cover 6. Compared with the conventional sliding brush, the conductive sheet assembly 523 of the present embodiment does not generate induction sparks due to the switching of the repeatedly changing high-frequency voltage in the winding 522, and can significantly reduce the failure rate of the conductive sheet assembly 523 and delay the life of the conductive sheet assembly 523.
In an embodiment, as shown in fig. 6, the brush spring 5232 is an S-shaped spring. The S-shaped elastic sheet has good bidirectional elastic performance, and is particularly suitable for the second power device 5 used for the sound wave resonance toothbrush.
In the embodiment, as shown in fig. 5 and 6, the stator 51 and the rotor 52 are arranged in the range of the housing 1 along the axial direction of the outer shaft 3. This structure makes outer axle 3 can both receive the effort on great axle center length, and is more steady when high-frequency vibration.
In the embodiment, as shown in fig. 2 and 3, at least one oil-retaining bearing 7 is arranged between the inner shaft 2 and the outer shaft 3. The oil bearing is particularly suitable for being arranged between the inner shaft 2 and the outer shaft 3, and particularly has the vibration absorption characteristic, so that the performance of the embodiment can be obviously improved.
In the embodiment, as shown in fig. 1, 2 and 3, in the electric toothbrush using the concentric dual-shaft movement, the front end of the inner shaft 2 completely penetrates through the outer shaft 3, the front end of the inner shaft 2 is provided with a first brush head installation part 21, the front end of the outer shaft 3 is provided with a second brush head installation part 31, the first brush head installation part 21 is provided with a detachable linear row brush, and the second brush head installation part 31 is provided with a detachable round brush head. As shown in figures 7, 8 and 9, the straight-line-shaped row brushes and the round brush heads can realize two different tooth brushing modes by replacing different brush heads on the basis of the concentric double shafts of the embodiment, and the operation is convenient and simple.
It should be understood that the above-described embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And such obvious changes and modifications which are within the spirit of the invention are deemed to be covered by the present invention.
Claims (9)
1. A concentric dual-axis movement, comprising: the inner shaft and the outer shaft are concentrically arranged in the shell, the inner shaft can circumferentially rotate or axially move, the outer shaft can circumferentially rotate, and the movement of the inner shaft and the movement of the outer shaft are not interfered with each other;
the inner shaft is provided with a first power device, the outer shaft is provided with a second power device, the first power device drives the inner shaft to rotate circumferentially or move axially, and the second power device drives the outer shaft to vibrate in a high-frequency rotating mode;
the inner shaft serves as a drive shaft for the friction brushhead and the outer shaft serves as a drive shaft for the sonic brushhead;
the second power device comprises a stator, a rotor and an electric control module, wherein the stator is fixed in the shell, the rotor is fixed on the outer shaft, and the electric control module acts on the stator or the rotor to generate a magnetic field for high-frequency conversion of magnetic poles.
2. A concentric dual-axis movement according to claim 1, wherein: the first power device comprises a motor and a crank and rocker mechanism, an output shaft of the motor is parallel to and eccentric with the inner shaft, the crank and rocker mechanism comprises a crank, a rocker and a connecting rod, the crank is fixed with the output shaft of the motor, and the rocker is fixed with the inner shaft.
3. A concentric dual-axis movement according to claim 2, wherein: the rear end of the inner shaft completely penetrates through the outer shaft, and the first power device is arranged at the rear end of the inner shaft.
4. A concentric dual-axis movement according to claim 1, wherein: the stator is a permanent magnet, the rotor is provided with a magnetic core, the magnetic core is wound with a winding and is provided with a conducting strip assembly, and the electric control module acts on the winding through the conducting strip assembly.
5. A concentric dual-axis movement according to claim 4, wherein: the conducting strip assembly comprises an external terminal, an electric brush elastic sheet, a conducting strip and a conducting strip seat, the conducting strip seat is arranged on the outer shaft, the conducting strip is fixed in the conducting strip seat and is electrically connected with the winding, the external terminal is electrically connected to the electric control module, and the electric brush elastic sheet is connected between the external terminal and the conducting strip; the shell is provided with a rear cover, and the external terminal is fixed on the rear cover.
6. A concentric dual axis movement according to claim 5, wherein: the electric brush elastic sheet is an S-shaped elastic sheet.
7. A concentric dual-axis movement according to claim 1, wherein: the stator and the rotor are arranged in the housing in the axial direction of the outer shaft.
8. A concentric dual-axis movement according to claim 2, wherein: at least one oil-containing bearing is arranged between the inner shaft and the outer shaft.
9. An electric toothbrush using the concentric dual axis cartridge of claim 1, wherein: interior axle front end passes through the outer axle completely, interior axle front end is established a brush head installation department, the front end of outer axle is equipped with No. two brush head installation departments, a brush head installation department installation detachable style of calligraphy row brush, No. two brush head installation departments installation detachable circle brush head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417652.9A CN107080602B (en) | 2017-06-06 | 2017-06-06 | Concentric double-shaft machine core and electric toothbrush using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417652.9A CN107080602B (en) | 2017-06-06 | 2017-06-06 | Concentric double-shaft machine core and electric toothbrush using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107080602A CN107080602A (en) | 2017-08-22 |
| CN107080602B true CN107080602B (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710417652.9A Active CN107080602B (en) | 2017-06-06 | 2017-06-06 | Concentric double-shaft machine core and electric toothbrush using same |
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| Country | Link |
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| CN (1) | CN107080602B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820605B (en) * | 2019-04-04 | 2023-09-12 | 常州赛乐医疗技术有限公司 | Bending machine head and root canal preparation machine convenient for maintaining conducting strips |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5442827A (en) * | 1993-10-19 | 1995-08-22 | Bausch & Lomb Incorporated | Electric toothbrush |
| WO2006125341A1 (en) * | 2005-05-24 | 2006-11-30 | Wei Jiang | A dual inward-turning electric toothbrush |
| CN201813301U (en) * | 2010-10-08 | 2011-04-27 | 彭希南 | Micro stepper motor with three concentric driving shafts |
| CN104043360A (en) * | 2013-10-18 | 2014-09-17 | 武汉科技大学 | Leaching tank having adjustable double shaft stirring device |
| CN106388962A (en) * | 2016-10-14 | 2017-02-15 | 广东新宝电器股份有限公司 | Small-angle left-right rotation device and electric toothbrush utilizing same |
| CN207768549U (en) * | 2017-06-06 | 2018-08-28 | 浙江金达电机电器有限公司 | A kind of concentric double-shaft movement and the electric toothbrush using the movement |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100745842B1 (en) * | 2004-07-09 | 2007-08-02 | 최주아 | electric toothbrush |
| RU2412672C2 (en) * | 2009-05-04 | 2011-02-27 | Общество с ограниченной ответственностью "Наука Техника Медицина" | Mechanical tooth-brush and its power mechanism (versions) |
-
2017
- 2017-06-06 CN CN201710417652.9A patent/CN107080602B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5442827A (en) * | 1993-10-19 | 1995-08-22 | Bausch & Lomb Incorporated | Electric toothbrush |
| WO2006125341A1 (en) * | 2005-05-24 | 2006-11-30 | Wei Jiang | A dual inward-turning electric toothbrush |
| CN201813301U (en) * | 2010-10-08 | 2011-04-27 | 彭希南 | Micro stepper motor with three concentric driving shafts |
| CN104043360A (en) * | 2013-10-18 | 2014-09-17 | 武汉科技大学 | Leaching tank having adjustable double shaft stirring device |
| CN106388962A (en) * | 2016-10-14 | 2017-02-15 | 广东新宝电器股份有限公司 | Small-angle left-right rotation device and electric toothbrush utilizing same |
| CN207768549U (en) * | 2017-06-06 | 2018-08-28 | 浙江金达电机电器有限公司 | A kind of concentric double-shaft movement and the electric toothbrush using the movement |
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| Publication number | Publication date |
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| CN107080602A (en) | 2017-08-22 |
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