CN111067652A - Electric toothbrush rod-offset sonic wave machine and working method thereof - Google Patents
Electric toothbrush rod-offset sonic wave machine and working method thereof Download PDFInfo
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- CN111067652A CN111067652A CN201811230240.5A CN201811230240A CN111067652A CN 111067652 A CN111067652 A CN 111067652A CN 201811230240 A CN201811230240 A CN 201811230240A CN 111067652 A CN111067652 A CN 111067652A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 47
- 239000000725 suspension Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
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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
- A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
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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
- A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
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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)
- 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 provides an electric toothbrush offset bar sonic machine and a working method thereof, wherein an offset bar sonic machine body is arranged in a machine body; the offset rod acoustic wave machine body comprises a combined shell; a micromotor is arranged at one end of the oppositely-combined type shell, which is far away from the toothbrush handle, the output end of the micromotor is a motor shaft, the motor shaft points to the toothbrush handle, and the motor shaft is connected with one end of the positioning connecting shaft rod through an eccentric bearing seat; the other end of the positioning connecting shaft rod is provided with a positioning connecting shaft seat, and the outer ring of the positioning connecting shaft seat is provided with a positioning connecting shaft seat soft rubber sleeve; the concentric bearing block, the bearing B and the metal shaft are sequentially arranged in the concentric bearing block soft rubber sleeve from outside to inside; one end of the metal shaft far away from the toothbrush handle is connected with the positioning connecting shaft lever; the other end of the metal shaft is arranged in the toothbrush handle. The invention can achieve the effect of the electric toothbrush with the magnetic suspension motor, and solves the defects of thick brush head handle, small vibration swing amplitude, easy touch of the brush head handle on teeth and poor tooth brushing force of the original resonance electric toothbrush.
Description
Technical Field
The invention belongs to the technical field of electric toothbrushes, and particularly relates to an electric toothbrush off-set rod sonic wave machine and a working method thereof.
Background
The prior art resonant electric toothbrush structure is shown in figures 1-2: mainly comprises a micro motor 2, a motor base 3, an eccentric hammer connecting rod shaft 4, an equal-diameter eccentric hammer 5 and an eccentric hammer swinging shaft 6; the usage principle is that fuselage 1 is as supporting, opens micromotor 2, drives the eccentric hammer 5 of equal diameter through eccentric hammer connecting rod axle 4 and begins high-speed the rotation, drives eccentric hammer pendulum shaft 6 and does 360 degrees swings, drives the vibrations of 7 swings of toothbrush handle, conducts the brush head 8 brush hair swings of swing again, plays the effect of electronic brushing teeth, has following technical defect in the use: 1) when the micro-motor 2 rotates, the eccentric hammer 5 with the equal diameter is transmitted to the eccentric hammer connecting rod shaft 4, because the eccentric hammer 5 with the equal diameter rotates concentrically, the diameter of the eccentric hammer 5 with the equal diameter cannot be too small, and the eccentric hammer 5 with the equal diameter does not have a deviation force to drive the toothbrush handle 7, so that the diameter of the eccentric hammer swinging shaft 6 is larger, the mouth needs to be opened greatly when teeth are brushed, the eccentric hammer swinging shaft 6 is easy to touch teeth, and the teeth are vibrated to cause the technical defect of numbness pain; 2) the eccentric hammer swing shaft 6 has large diameter, and influences the swing of the toothbrush head 7 in the mouth, so that the tooth brushing effect is reduced; 3) when the toothbrush swings, the part of the eccentric hammer connecting rod shaft 4 can be rotated and transmitted to the eccentric hammer 5 with the same diameter when being bent, the force applied by a person is different from the tooth brushing force of different tooth parts when brushing teeth, and the eccentric hammer connecting rod shaft 4 cannot stably and reasonably provide connecting force, so that the instability is caused when the toothbrush needs to be applied with force; 4) if the diameter of the eccentric hammer swing shaft 6 is too small, the bristles of the brush head 8 can not swing with force, the diameter of the existing eccentric hammer swing shaft 6 cannot be reduced, if the toothbrush handle 7 is lengthened to realize thinning, the eccentric hammer swing shaft 6 cannot be placed at the position closest to the bristles of the brush head 8 due to the large diameter of the eccentric hammer swing shaft, the closer to the brush head 8, the better the bristle effect is, the swing amplitude of the bristles of the brush head 8 can be reduced, the brushing can not be expected, and many people are reluctant to use the electric toothbrush.
How to design an electric toothbrush eccentric rod sonic machine and a working method thereof, how to solve the defects that the brush head handle of the resonance electric toothbrush in the prior art is thick, the vibration swing amplitude is small, the brush head handle is easy to touch teeth, hit the teeth and vibrate the numb teeth, and the tooth brushing force is not in place, and the problem becomes to be solved urgently.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electric toothbrush rod-offset sonic wave machine and a working method thereof, which are used to solve the problems in the prior art that a resonant electric toothbrush has a large handle and a small vibration swing amplitude, the handle is easy to touch teeth, hit the teeth, vibrate and numb the teeth, and the brushing force is not in place.
In order to achieve the purpose, the invention provides an electric toothbrush off-set rod sound wave machine, which comprises a machine body and a brush head, wherein one end of the brush head is provided with a toothbrush handle connected with the machine body, and the electric toothbrush off-set rod sound wave machine is characterized in that: the machine body is internally provided with a biased bar sonic machine body, and the output end of the biased bar sonic machine body is arranged in the toothbrush handle;
the offset rod acoustic wave machine body comprises a set of opposite-combined type shells, each opposite-combined type shell consists of an upper offset rod acoustic wave machine shell and a lower offset rod acoustic wave machine shell, and the internal structures of the upper offset rod acoustic wave machine shell and the lower offset rod acoustic wave machine shell are symmetrically arranged; a micromotor is arranged at one end of the oppositely-combined type shell, which is far away from the toothbrush handle, the output end of the micromotor is a motor shaft, the motor shaft points to the toothbrush handle, the motor shaft is connected with one end of the positioning connecting shaft rod through an eccentric bearing seat, and a bearing A is arranged between the eccentric bearing seat and the positioning connecting shaft rod; the other end of the positioning connecting shaft rod is provided with a positioning connecting shaft seat, and the outer ring of the positioning connecting shaft seat is provided with a positioning connecting shaft seat soft rubber sleeve;
a battery is arranged at one end of the offset rod acoustic wave machine body and the end of the machine body far away from the brush head and used for supplying power to the micro motor; the body is provided with a switch for controlling the on-off of the power supply of the battery;
a semi-annular end plate is arranged at one end, close to the toothbrush handle, of the lower shell of the offset sound wave machine, a semi-circular groove, a semi-circular tool withdrawal groove and a semi-circular stop block are sequentially arranged on the semi-annular end plate in the direction towards the other end of the lower shell of the offset sound wave machine, the semi-circular groove is a mounting hole A, and a mounting hole B is formed in the center of the section of the semi-circular stop; the positioning connection shaft seat soft rubber sleeve is arranged in the mounting hole B;
a concentric bearing seat soft rubber sleeve is arranged in the mounting hole A, and a concentric bearing seat, a bearing B and a metal shaft are sequentially arranged in the concentric bearing seat soft rubber sleeve from outside to inside; a metal shaft lower key pin is arranged at one end of the metal shaft far away from the toothbrush handle, a metal shaft upper key pin is arranged at the other end of the metal shaft, and the metal shaft lower key pin is connected with the positioning connecting shaft rod; the key pin on the metal shaft is arranged in the toothbrush handle.
In an embodiment of the invention, the mounting hole B is a rectangular counter bore, the bottom of the rectangular counter bore is an arc surface, and the radius of the arc surface is equal to the inner diameter of the involution type shell.
In an embodiment of the present invention, the bearing position of the eccentric bearing seat deviates 0.1-0.9 mm from the axis of the motor shaft.
In an embodiment of the invention, when the machine body is vertically arranged, an included angle between a bearing position of the eccentric bearing seat and a vertical line is 1-9 °.
In an embodiment of the present invention, the center of the concentric bearing seat and the axis of the motor shaft are on a central line.
The invention provides a working method of an electric toothbrush off-set rod sonic machine, which is characterized in that: the method comprises the following operation steps:
A) the motor shaft of the micro motor rotates to drive the eccentric bearing block to rotate simultaneously;
B) the bearing A rotates around the center of the motor because the bearing A is not concentric with the eccentric bearing seat;
C) the positioning connecting shaft rod rotates around the center of the micromotor on the bearing A;
D) the positioning connection shaft seat and the positioning connection shaft rod are integrated, the positioning connection shaft seat is sleeved with a positioning connection shaft seat soft rubber sleeve which is fixed in the mounting hole B, the positioning connection shaft seat cannot rotate by itself due to fixation, and the positioning connection shaft seat can rock within the elastic range of the soft rubber at any angle and has small amplitude due to the elasticity of the positioning connection shaft seat soft rubber sleeve, so that the positioning connection shaft rod rotates at the outer diameter of the bearing A when the eccentric bearing seat rotates around the center of the micro-motor, and the positioning connection shaft rod cannot rotate by itself under the condition that the inner diameter of the bearing A does not rotate;
E) concentric bearing frame center and micromotor center are on an axis, it fixes in mounting hole A to adorn concentric bearing frame soft gum cover, support the fixed point as the center, because concentric bearing frame soft gum cover has elasticity, can realize the suitable swing of metal axle, but concentric bearing frame soft gum cover self does not change the circle, play the effect as the lever midpoint, the metal axle is done the swing in the top of lever central point, self does not change the circle, the metal axle drives the brush head and is done the swing, do the same swing with the metal axle of magnetic suspension motor, thereby realize the effect with the electronic toothbrush of magnetic suspension sound wave.
The product of the invention has reasonable structure, realizes the sound wave metal shaft on the matching of the toothbrush head, can realize the electric toothbrush effect of the magnetic suspension motor, realizes the matching of the metal shaft and the thin toothbrush head, has large swing amplitude of the brush hair and stable force; the electric toothbrush solves the defects that the original resonance electric toothbrush has a thick brush head handle, small vibration swing amplitude, easy contact of the brush head handle with teeth, tooth beating, tooth vibration and poor tooth brushing force, has lower cost than the electric toothbrush with a magnetic suspension sound wave motor, smaller hand feeling vibration and lighter sound, and can be adapted and used by more people; the popularization and the application have good economic benefit and social benefit.
Drawings
Fig. 1 is an exploded view of a prior art resonant power toothbrush.
Fig. 2 is a schematic view of a prior art resonant electric toothbrush mounting structure.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic view of the mounting structure of the present invention.
Fig. 5 is a schematic view of the mounting structure of the present invention assembled with a toothbrush.
In the figure: 1. a body; 2. a micro-motor; 3. a motor base; 4. an eccentric hammer link shaft; 5. an equal diameter eccentric weight; 6. an eccentric hammer swing shaft; 7. a toothbrush handle; 8. a brush head; 9. an eccentric bearing seat; 10. a bearing A; 11. positioning the connecting shaft rod; 12. positioning and connecting the shaft seat; 13. positioning and connecting the shaft seat with a soft rubber sleeve; 14. a bearing B; 15. a concentric bearing seat; 16. an upper shell of the offset rod acoustic wave machine; 17. a concentric bearing block soft rubber sleeve; 18. a metal shaft; 19. a lower shell of the offset rod acoustic wave machine; 201. a motor shaft; 1801. a metal shaft lower key pin; 1802. a key pin on the metal shaft; 1901. a mounting hole A; 1902. and (7) mounting holes B.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 5, the invention provides an electric toothbrush off-set rod acoustic wave machine, which comprises a machine body 1 and a brush head 8, wherein one end of the brush head 8 is provided with a toothbrush handle 7 connected with the machine body 1, and the electric toothbrush off-set rod acoustic wave machine is characterized in that: a biased bar sonic machine body is arranged in the machine body 1, and the output end of the biased bar sonic machine body is arranged in the toothbrush handle 7;
as shown in fig. 4, the offset-rod acoustic wave machine body includes a set of involutive shells, the involutive shells are composed of an offset-rod acoustic wave machine upper shell 16 and an offset-rod acoustic wave machine lower shell 19, and the internal structures of the offset-rod acoustic wave machine upper shell 16 and the offset-rod acoustic wave machine lower shell 19 are symmetrically arranged;
as shown in fig. 3, a micro-motor 2 is arranged at one end of the involutory case far away from the toothbrush handle 7, the output end of the micro-motor 2 is a motor shaft 201, the motor shaft 201 points to the toothbrush handle 7, the motor shaft 201 is connected with one end of the positioning connecting shaft rod 11 through an eccentric bearing seat 9, and a bearing a10 is arranged between the eccentric bearing seat 9 and the positioning connecting shaft rod 11; the other end of the positioning connecting shaft rod 11 is provided with a positioning connecting shaft seat 12, and the outer ring of the positioning connecting shaft seat 12 is provided with a positioning connecting shaft seat soft rubber sleeve 13;
a battery is arranged at one end of the offset rod acoustic wave machine body and the machine body 1, which is far away from the brush head 8, and the battery is used for supplying power to the micro-motor 2; the machine body 1 is provided with a switch for controlling the on-off of the power supply of the battery;
a semi-annular end plate is arranged at one end, close to the toothbrush handle 7, of the lower eccentric rod acoustic wave machine shell 19, a semi-circular groove, a semi-circular tool withdrawal groove and a semi-circular stop block are sequentially arranged on the semi-annular end plate in the direction of the other end of the lower eccentric rod acoustic wave machine shell 19, the semi-circular groove is a mounting hole A1901, and a mounting hole B1902 is arranged in the center of the cross section of the semi-circular stop block; the positioning connection shaft seat soft rubber sleeve 13 is arranged in the mounting hole B1902;
a concentric bearing seat soft rubber sleeve 17 is arranged in the mounting hole A1901, and a concentric bearing seat 15, a bearing B14 and a metal shaft 18 are sequentially arranged in the concentric bearing seat soft rubber sleeve 17 from outside to inside; a metal shaft lower key pin 1801 is arranged at one end of the metal shaft 18 far away from the toothbrush handle 7, a metal shaft upper key pin 1802 is arranged at the other end of the metal shaft 18, and the metal shaft lower key pin 1801 is connected with the positioning connecting shaft rod 11; a metal on-shaft key 1802 is mounted in the toothbrush handle 7;
the mounting hole B1902 is a rectangular counter bore, the bottom of the rectangular counter bore is an arc surface, and the radius of the arc surface is equal to the inner diameter of the involution type shell;
the bearing position of the eccentric bearing block 9 deviates 0.1-0.9 mm from the axis of the motor shaft 201;
when the machine body 1 is vertically arranged, the included angle between the bearing position of the eccentric bearing block 9 and the vertical line is 1-9 degrees;
the center of the concentric bearing seat 15 and the axis of the motor shaft 201 are on a central line.
The invention provides a working method of an electric toothbrush off-set rod sonic machine, which is characterized in that: the method comprises the following operation steps:
A) the motor shaft 201 of the micro motor 2 rotates to drive the eccentric bearing seat 9 to rotate simultaneously;
B) bearing a10 is not concentric with eccentric bearing seat 9, bearing a10 rotates around the center of the motor;
C) the positioning connecting shaft rod 11 rotates around the center of the micro motor 2 on a bearing A10;
D) the positioning connection shaft seat 12 and the positioning connection shaft rod 11 are integrated, the positioning connection shaft seat 12 is sleeved with a positioning connection shaft seat soft rubber sleeve 13 and fixed in the mounting hole B1902, the positioning connection shaft seat 12 cannot rotate by itself due to being fixed, and the positioning connection shaft seat 12 can rock within the range of the soft rubber elasticity at any angle and has small amplitude due to the elasticity of the positioning connection shaft seat soft rubber sleeve 13, so that the positioning connection shaft rod 11 rotates at the outer diameter of the bearing A10 when the eccentric bearing seat 9 rotates around the center of the micro-motor 2, and the positioning connection shaft rod 11 cannot rotate by itself under the condition that the inner diameter of the bearing A10 does not rotate;
E) the concentric bearing seat 15 center and the micromotor 2 center are on one axis, the concentric bearing seat soft rubber sleeve 17 is arranged and fixed in the mounting hole A1901 and serves as a center supporting fixed point, the concentric bearing seat soft rubber sleeve 17 is elastic and can realize proper swinging of the metal shaft 18, but the concentric bearing seat soft rubber sleeve 17 does not rotate around itself and plays a role as a lever middle point, the metal shaft 18 swings above the lever middle point and does not rotate around itself, the metal shaft 18 drives the brush head 8 to swing and does the same swinging with the metal shaft of the magnetic suspension motor, and therefore the effect of the magnetic suspension sound wave electric toothbrush is achieved.
When the magnetic suspension motor sound wave electric toothbrush is specifically implemented, the magnetic suspension motor sound wave electric toothbrush can achieve the effects of low production cost and high performance, the magnetic suspension motor sound wave electric toothbrush is very high in cost, the magnetic suspension motor sound wave electric toothbrush can be simpler in production, and the micro motor is longer in service life than the magnetic suspension motor, so that the micro motor is less prone to damage and is more economical and durable than the magnetic suspension sound wave electric toothbrush; compared with a resonance electric toothbrush, the production and processing cost is not increased, but the performance is greatly improved; the resonant electric toothbrush has short service life, long matching time, low matching precision and greatly lowered performance, noise and effect. In terms of sound, the toothbrush head rod can be made thin and light due to the metal shaft, so that the swinging amplitude of the bristles can be increased, the tooth cleaning effect is better, the appearance looks more attractive, more people can use the toothbrush due to more reasons, and the electric toothbrush which is practical, good in use and durable is brought to more people.
Embodiment one, the assembly method of the invention: the micromotor 2 is 3.7V, and a bearing A10 is arranged on the motor shaft 201 and needs to be tightly matched and fixed; the positioning connection shaft seat soft rubber sleeve 13 is sleeved on the positioning connection shaft seat 12, and the bearing A10 is arranged on the positioning connection shaft rod 11 and then is arranged in the positioning connection shaft seat 12; the bearing B14 is installed in the concentric bearing seat 15, the concentric bearing seat soft rubber sleeve 17 is sleeved on the concentric bearing seat 15, the metal shaft 18 is sleeved in the bearing B14, the lower key pin 1801 of the metal shaft is installed in the positioning connection shaft seat 12 and is tightly matched and fixed with the inner hole of the positioning connection shaft rod 11, after the metal shaft and the lower key pin are connected in series, the positioning connection shaft seat soft rubber sleeve 13 is installed in the installation hole B1902 in the direction, the concentric bearing seat soft rubber sleeve 17 is installed in the installation hole A1901, the upper shell 16 of the eccentric rod sound wave machine is covered, and the assembly is completed.
In conclusion, the electric toothbrush off-rod sound wave machine and the working method thereof provided by the invention have the advantages that the product structure is reasonable, the sound wave metal shaft is realized on the toothbrush head, the electric toothbrush effect of the magnetic suspension motor can be realized, the matching of the metal shaft and the thin toothbrush head is realized, the swing amplitude of bristles is large, and the force is stable; the electric toothbrush solves the problems that the brush head handle of the original resonance electric toothbrush is thick, the vibration swing amplitude is small, the brush head handle is easy to touch teeth, beat teeth and vibrate rough teeth, and the tooth brushing force is not in place, has lower cost than that of the electric toothbrush with a magnetic suspension sound wave motor, has smaller hand feeling vibration and lighter sound, and can be suitable for and used by more people. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. Electric toothbrush inclined to one side pole sound wave machine, including fuselage (1), brush head (8), the one end of brush head (8) is provided with toothbrush handle (7) and is connected its characterized in that with fuselage (1): a biased bar sonic machine body is arranged in the machine body (1), and the output end of the biased bar sonic machine body is arranged in the toothbrush handle (7);
the offset-rod acoustic wave machine body comprises a set of opposite-combined type shells, each opposite-combined type shell consists of an upper offset-rod acoustic wave machine shell (16) and a lower offset-rod acoustic wave machine shell (19), and the inner structures of the upper offset-rod acoustic wave machine shell (16) and the lower offset-rod acoustic wave machine shell (19) are symmetrically arranged; a micromotor (2) is arranged at one end, away from the toothbrush handle (7), of the oppositely-combined type shell, a motor shaft (201) is arranged at the output end of the micromotor (2), the motor shaft (201) points to the toothbrush handle (7), the motor shaft (201) is connected with one end of the positioning connecting shaft rod (11) through an eccentric bearing seat (9), and a bearing A (10) is arranged between the eccentric bearing seat (9) and the positioning connecting shaft rod (11); the other end of the positioning connecting shaft lever (11) is provided with a positioning connecting shaft seat (12), and the outer ring of the positioning connecting shaft seat (12) is provided with a positioning connecting shaft seat soft rubber sleeve (13);
a semi-annular end plate is arranged at one end, close to the toothbrush handle (7), of the lower eccentric rod sonic wave machine shell (19), a semi-circular groove, a semi-circular tool withdrawal groove and a semi-circular stop block are sequentially arranged on the semi-annular end plate in the direction of the other end of the lower eccentric rod sonic wave machine shell (19), the semi-circular groove is a mounting hole A (1901), and a mounting hole B (1902) is arranged in the center of the cross section of the semi-circular stop block; a positioning connection shaft seat soft rubber sleeve (13) is arranged in the mounting hole B (1902);
a concentric bearing seat soft rubber sleeve (17) is arranged in the mounting hole A (1901), and a concentric bearing seat (15), a bearing B (14) and a metal shaft (18) are sequentially arranged in the concentric bearing seat soft rubber sleeve (17) from outside to inside; a metal shaft lower key pin (1801) is arranged at one end, far away from the toothbrush handle (7), of the metal shaft (18), a metal shaft upper key pin (1802) is arranged at the other end of the metal shaft (18), and the metal shaft lower key pin (1801) is connected with the positioning connecting shaft rod (11); a metal on-shaft key pin (1802) is mounted in the toothbrush handle (7).
2. The electric toothbrush off-set stem sonic machine of claim 1, wherein: the mounting hole B (1902) is a rectangular counter bore, the bottom of the rectangular counter bore is an arc surface, and the radius of the arc surface is equal to the inner diameter of the butt-joint type shell.
3. The electric toothbrush off-set stem sonic machine of claim 1, wherein: the bearing position of the eccentric bearing seat (9) deviates 0.1-0.9 mm from the axle center of the motor shaft (201).
4. The electric toothbrush off-set stem sonic machine of claim 1, wherein: when the machine body (1) is vertically arranged, the included angle between the bearing position of the eccentric bearing seat (9) and the vertical line is 1-9 degrees.
5. The electric toothbrush off-set stem sonic machine of claim 1, wherein: the center of the concentric bearing seat (15) and the axle center of the motor shaft (201) are on the same central line.
6. The working method of the electric toothbrush rod-offset sonic machine is characterized in that: the method comprises the following operation steps:
A) a motor shaft (201) of the micro motor (2) rotates to drive the eccentric bearing block (9) to rotate simultaneously;
B) the bearing A (10) is not concentric with the eccentric bearing seat (9), and the bearing A (10) rotates around the center of the motor;
C) the positioning connecting shaft lever (11) rotates around the center of the micromotor (2) on the bearing A (10);
D) the positioning connection shaft seat (12) and the positioning connection shaft rod (11) are integrated, the positioning connection shaft seat (12) is sleeved with a positioning connection shaft seat soft rubber sleeve (13) and fixed in the mounting hole B (1902), the positioning connection shaft seat (12) cannot rotate by itself due to being fixed, and the positioning connection shaft seat soft rubber sleeve (13) has elasticity, so that the positioning connection shaft seat (12) can rock within the elastic range of soft rubber at any angle and has small amplitude, the positioning connection shaft rod (11) rotates at the outer diameter of the bearing A (10) when the eccentric bearing seat (9) rotates around the center of the micromotor (2), and the positioning connection shaft rod (11) cannot rotate by itself under the condition that the inner diameter of the bearing A (10) does not rotate;
E) the center of the concentric bearing seat (15) and the center of the micromotor (2) are on one axis, the concentric bearing seat soft rubber sleeve (17) is arranged and fixed in the mounting hole A (1901) and used as a central support fixing point, because the concentric bearing seat soft rubber sleeve (17) has elasticity, the proper swing of the metal shaft (18) can be realized, but the concentric bearing seat soft rubber sleeve (17) does not rotate by itself and plays a role as a lever middle point, the metal shaft (18) swings above the lever central point and does not rotate by itself, the metal shaft (18) drives the brush head (8) to swing and the metal shaft of the magnetic suspension motor to swing the same, and therefore the effect of the magnetic suspension sound wave electric toothbrush is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230240.5A CN111067652A (en) | 2018-10-22 | 2018-10-22 | Electric toothbrush rod-offset sonic wave machine and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230240.5A CN111067652A (en) | 2018-10-22 | 2018-10-22 | Electric toothbrush rod-offset sonic wave machine and working method thereof |
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| CN111067652A true CN111067652A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811230240.5A Pending CN111067652A (en) | 2018-10-22 | 2018-10-22 | Electric toothbrush rod-offset sonic wave machine and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112155772A (en) * | 2020-10-27 | 2021-01-01 | 上海岩井精工结构件有限公司 | Electric toothbrush drive shaft |
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| US20020157198A1 (en) * | 1999-06-23 | 2002-10-31 | Ladislau Biro | Motorized toothbrush brush tip with two counter-rotating brush heads rotating on a common axis |
| US20030226223A1 (en) * | 2002-06-11 | 2003-12-11 | The Procter & Gamble Co. | High efficiency electric toothbrush |
| CN101151011A (en) * | 2005-04-01 | 2008-03-26 | 宝洁公司 | Oral care regimens and devices |
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| CN209360960U (en) * | 2018-10-22 | 2019-09-10 | 上海天封科技有限公司 | Electric toothbrush side spin sound wave machine |
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| US20020157198A1 (en) * | 1999-06-23 | 2002-10-31 | Ladislau Biro | Motorized toothbrush brush tip with two counter-rotating brush heads rotating on a common axis |
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| CN101151011A (en) * | 2005-04-01 | 2008-03-26 | 宝洁公司 | Oral care regimens and devices |
| CN205163294U (en) * | 2015-10-30 | 2016-04-20 | 惠州欧捷威电器有限公司 | Electric toothbrush vibrating structure |
| CN209360960U (en) * | 2018-10-22 | 2019-09-10 | 上海天封科技有限公司 | Electric toothbrush side spin sound wave machine |
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| CN112155772A (en) * | 2020-10-27 | 2021-01-01 | 上海岩井精工结构件有限公司 | Electric toothbrush drive shaft |
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