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CN111759516B - Electric toothbrush - Google Patents

Electric toothbrush Download PDF

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Publication number
CN111759516B
CN111759516B CN202010664320.2A CN202010664320A CN111759516B CN 111759516 B CN111759516 B CN 111759516B CN 202010664320 A CN202010664320 A CN 202010664320A CN 111759516 B CN111759516 B CN 111759516B
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CN
China
Prior art keywords
brush
driving
driving shaft
seat
driver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010664320.2A
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Chinese (zh)
Other versions
CN111759516A (en
Inventor
程志波
董聪昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Payer Electronic Nursing Product Suzhou Co ltd
Original Assignee
Payer Electronic Nursing Product Suzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Payer Electronic Nursing Product Suzhou Co ltd filed Critical Payer Electronic Nursing Product Suzhou Co ltd
Priority to CN202010664320.2A priority Critical patent/CN111759516B/en
Publication of CN111759516A publication Critical patent/CN111759516A/en
Application granted granted Critical
Publication of CN111759516B publication Critical patent/CN111759516B/en
Active legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/349Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-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
    • A61C17/3418Rotation around the axis of the toothbrush handle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-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
    • A61C17/3445Translation along the axis of the toothbrush handle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-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
    • A61C17/3481Vibrating 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 relates to an electric toothbrush, which comprises a toothbrush handle, a brush head and a driver, wherein the brush head comprises a brush rod, a brush seat and bristles, the bristles comprise a plurality of bristle monomers, the bristle monomers are divided into a plurality of groups, each group is arranged side by side along the length direction of the brush seat, and the bristle monomers of the plurality of groups are distributed at intervals around the circumference of the brush seat; the driver comprises a first driving unit for driving the brush rod to rotate around the axis of the driver, and a second driving unit which moves synchronously with the brush rod and can drive the brush rod to linearly reciprocate along the length direction of the driver. The brush head synchronously makes linear reciprocating vibration in the rotating process, and is matched with a plurality of groups of bristle monomers which are uniformly distributed in the circumferential direction, so that the tooth surface and the tooth gaps of the teeth can be cleaned in 360 degrees without dead angles, dirt on the tooth surface and the tooth gaps can be better brushed out, and the cleaning effect of the teeth is greatly improved.

Description

Electric toothbrush
Technical Field
The invention belongs to the field of cleaning and nursing, and particularly relates to an electric toothbrush.
Background
Currently, electric toothbrushes on the market comprise a toothbrush handle, a brush head, and a driver arranged inside the toothbrush handle and used for the movement of the brush head, wherein the brush head comprises a brush rod, a brush seat and bristles, and brushing ends of the bristles are exposed from one side of the brush seat.
Specifically, the conventional motion mode of the brush head is linear vibration, and the cleaning of the brush hair to teeth is realized under the operation of the driver.
However, in the actual brushing process, the brushing mode is difficult to realize comprehensive cleaning of tooth surfaces and tooth gaps, dead angles are easy to clean, and the cleaning effect is poor.
Disclosure of Invention
The invention aims to provide an improved electric toothbrush.
In order to solve the technical problems, the invention adopts the following technical scheme:
An electric toothbrush comprises a toothbrush handle, a brush head and a driver, wherein the brush head comprises a brush rod, a brush seat and bristles, the bristles comprise a plurality of bristle monomers, the bristle monomers are divided into a plurality of groups, each group is arranged side by side along the length direction of the brush seat, and the bristle monomers of the plurality of groups are distributed at intervals around the circumference of the brush seat; the driver comprises a first driving unit for driving the brush rod to rotate around the axis of the driver, and a second driving unit which moves synchronously with the brush rod and can drive the brush rod to linearly reciprocate along the length direction of the driver.
Preferably, the first drive unit comprises a drive shaft, a motor disposed within the toothbrush handle, a transmission assembly for drivingly connecting an output shaft of the motor to one end of the drive shaft, wherein the drive shaft is connected from the other end to an end of the brush bar remote from the bristles.
Further, the driving shaft is detachably connected with the brush rod from the end part, and the connected driving shaft coincides with the central line of the brush rod. The advantages of this arrangement are: the driving shaft and the brush rod can coaxially rotate, and meanwhile, the assembly is convenient.
Preferably, the drive shaft is arranged parallel to the output shaft. The advantage of this arrangement is that it facilitates the installation of the drive assembly, while further enabling the powered toothbrush structure to be miniaturized.
According to one embodiment and preferred aspect of the present invention, the transmission assembly includes an output gear disposed on the output shaft, a drive gear disposed on the drive shaft, and a transmission gear drivingly connecting the output gear and the drive gear. Here, through gear transmission, on one hand, more accurate rotation output (which can be known according to the transmission ratio) is convenient to obtain; on the other hand, the required installation space is small, which is beneficial to the miniaturization of the structure of the electric toothbrush.
Specifically, the transmission gear is a multi-stage reduction gear which is engaged relatively. The specific reduction ratio can select the corresponding reduction gear according to actual needs.
According to a further specific embodiment and preferred aspect of the present invention, the second driving unit is provided on the toothbrush handle and has a driving seat for the other end portion of the driving shaft to pass through the cavity, a first fitting module provided on the driving seat, a second fitting module fixed on the driving shaft and engaged with the first fitting module, and an elastic member for maintaining a movement tendency of the second fitting module toward the first fitting module, the driving shaft being provided in a linear movement with respect to the driving seat. Here, through the rotation of the second cooperation module that rotates in step with the drive shaft for interlock or break away from between second cooperation module and the first cooperation module and touch, and cooperate elastic component's deformation or reset motion, make the drive shaft can follow self length direction reciprocating vibration.
Preferably, mating corrugated teeth are provided on the mating end faces of the first mating module and the second mating module, respectively.
Preferably, the elastic component comprises a positioning part which is positioned in the cavity and sleeved on the driving shaft, and a spring which is sleeved on the periphery of the driving shaft and two ends of which respectively abut against between the positioning part and the driving seat.
In addition, the brush seat is cylindrical, and a plurality of groups of bristle monomers are uniformly distributed around the circumference of the cylinder. The processing process of the brush head is very simple, convenient to implement and low in cost.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
The brush head synchronously makes linear reciprocating vibration in the rotating process, and is matched with a plurality of groups of bristle monomers which are uniformly distributed in the circumferential direction, so that the tooth surface and the tooth gaps of the teeth can be cleaned in 360 degrees without dead angles, dirt on the tooth surface and the tooth gaps can be better brushed out, and the cleaning effect of the teeth is greatly improved.
Drawings
The invention will now be described in further detail with reference to the accompanying drawings and specific examples:
FIG. 1 is a schematic front view of an electric toothbrush of the present invention;
FIG. 2 is a schematic view of the brush head of FIG. 1;
FIG. 3 is an exploded view of the structure of FIG. 1;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
In the accompanying drawings: 1. a toothbrush handle; 10. a handle sleeve; 11. a shell;
2. A brush head; 20. a brush bar; 21. a brush holder; 22. brushing; 220. a bristle monomer;
3. A driver; 31. a first driving unit; 311. a drive shaft; 312. a motor; s, an output shaft; 313. a transmission assembly; a. an output gear; b. a drive gear; c. a transmission gear; 32. a second driving unit; 320. a driving seat; q, cavity; 321. a first mating module; 322. a second mating module; d. corrugated teeth; 323. an elastic component; e. a positioning part; h. and (3) a spring.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1 to 3, the electric toothbrush of the present embodiment includes a toothbrush handle 1, a brush head 2, and a driver 3.
The toothbrush handle 1 comprises a handle sleeve 10 and a shell sleeve 11 detachably arranged on the handle sleeve 10, wherein a control switch for controlling the operation of the driver 3 is formed on the handle sleeve 10.
The brush head 2 comprises a brush rod 20, a brush holder 21 and brush hairs 22, wherein the brush rod 20 is in a frustum shape, the brush holder 21 is in a cylindrical shape, and the brush holder 21 is fixed at the top of the frustum from one end of the cylinder.
The brush 22 comprises a plurality of brush units 220, the brush units 220 are divided into a plurality of groups, each group of brush units is arranged side by side along the length direction of the brush holder 21, and the brush units are distributed at intervals around the circumference of the brush holder 21. The processing process of the brush head is very simple, convenient to implement and low in cost.
In this example, the driver 3 is provided inside the sleeve 10 and the shell 11.
Specifically, the driver 3 includes a first driving unit 31 for driving the brush bar 20 to rotate around its own axis, and a second driving unit 32 which moves synchronously with the brush bar 20 and is capable of driving the brush bar 20 to reciprocate linearly along its own length direction.
As shown in fig. 4, the first driving unit 31 includes a driving shaft 311, a motor 312 provided in the toothbrush handle 1, and a transmission assembly 313 for transmitting and connecting an output shaft s of the motor 312 to one end of the driving shaft 311.
Specifically, the driving shaft 311 is detachably connected to the end of the brush rod 20 away from the bristles 22 from the other end, wherein the connected driving shaft 311 coincides with the center line of the brush rod 20. The advantages of this arrangement are: so that the driving shaft 311 and the brush bar 20 can coaxially rotate and simultaneously facilitate assembly.
In this example, the drive shaft 311 is disposed parallel to the output shaft s. The advantage of this arrangement is that it facilitates the installation of the drive assembly, while further enabling the powered toothbrush structure to be miniaturized.
Specifically, the motor 312 is a conventional product and is concealed within the sleeve 10.
The transmission assembly 313 includes an output gear a provided on the output shaft s, a driving gear b provided on the driving shaft 311, and a transmission gear c that drivingly connects the output gear a and the driving gear b. Here, through gear transmission, on one hand, more accurate rotation output (which can be known according to the transmission ratio) is convenient to obtain; on the other hand, the required installation space is small, which is beneficial to the miniaturization of the structure of the electric toothbrush.
The transmission gear c is a multi-stage reduction gear which is engaged relatively. The specific reduction ratio can select the corresponding reduction gear according to actual needs.
In this example, the second driving unit 32 is disposed on the casing 11 and has a driving seat 320 for the end portion of the driving shaft 311 to pass through the cavity q, a first matching module 321 disposed on the driving seat 320, a second matching module 322 fixed on the driving shaft 311 and engaged with the first matching module 321, and an elastic component 323 for maintaining the movement trend of the second matching module 322 toward the first matching module 321. Here, by the rotation of the second matching module 322 rotating synchronously with the driving shaft 311, the second matching module 322 is engaged with or separated from the first matching module 321, and the deformation or the reset motion of the elastic component 323 is matched, so that the driving shaft 311 can vibrate reciprocally along the length direction thereof.
Specifically, mating corrugated teeth d are respectively disposed on the mating end surfaces of the first mating module 321 and the second mating module 322.
The elastic component 323 includes a positioning portion e located in the cavity q and fixed on the driving shaft 311, and a spring h sleeved on the periphery of the driving shaft 311 and having two ends respectively abutting between the positioning portion e and the driving seat 320.
In addition, in order to facilitate the machining and forming of the components, in this example, the first matching module 321 and the driving seat 320, and the second matching module 322 and the driving gear b are respectively integrally formed.
In summary, the present embodiment has the following advantages:
1. The brush head synchronously makes linear reciprocating vibration in the rotating process and is matched with a plurality of groups of bristle monomers which are uniformly distributed in the circumferential direction, so that the tooth surface and the tooth gaps of the teeth can be cleaned in 360 degrees without dead angles, dirt on the tooth surface and the tooth gaps can be better brushed out, and the cleaning effect of the teeth is greatly improved;
2. Under the transmission of the multi-stage reduction gears, the rotating speed requirement of the brush head can be met, meanwhile, the transmission is stable, and the required installation space is small, so that the whole electric toothbrush is small in size and convenient to carry;
3. Under the condition that the matched corrugated teeth are meshed or separated from the top contact, and the deformation or the reset motion of the spring is matched, the driving shaft can vibrate in a reciprocating mode along the length direction of the driving shaft, and then the driving shaft is synchronous with the rotation of the driving shaft.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (5)

1. An electric toothbrush, it includes toothbrush handle, brush head, driver, wherein the brush head includes brush-holder stud, brush holder and brush hair, the brush hair includes many brush hair monomers, its characterized in that:
the brush hair monomers are divided into a plurality of groups, each group is arranged side by side along the length direction of the brush seat, the brush hair monomers are distributed at intervals around the circumference of the brush seat, wherein the brush seat is cylindrical, and a plurality of groups of bristle monomers are uniformly distributed around the circumference of the cylinder;
The driver comprises a first driving unit for driving the brush rod to rotate around the axis of the driver, and a second driving unit which moves synchronously with the brush rod and can drive the brush rod to linearly reciprocate along the length direction of the driver;
The first driving unit comprises a driving shaft, a motor arranged in the toothbrush handle and a transmission assembly used for connecting an output shaft of the motor with one end part of the driving shaft in a transmission way, wherein the driving shaft is connected with the end part of the brush rod, which is far away from the brush hair, from the other end part; the driving shaft is detachably connected with the brush rod from the end part, and the connected driving shaft coincides with the central line of the brush rod; the transmission assembly comprises an output gear arranged on the output shaft, a driving gear arranged on the driving shaft and a transmission gear in transmission connection with the output gear and the driving gear;
The second driving unit is arranged on the toothbrush handle and is provided with a driving seat for the other end part of the driving shaft to penetrate out of the cavity, a first matching module arranged on the driving seat, a second matching module fixed on the driving shaft and meshed with the first matching module, and an elastic component used for keeping the movement trend of the second matching module towards the direction of the first matching module, wherein the driving shaft is arranged in a linear movement mode relative to the driving seat.
2. The electric toothbrush of claim 1, wherein: the driving shaft is arranged in parallel with the output shaft.
3. The electric toothbrush of claim 1, wherein: the transmission gear is a multi-stage reduction gear which is meshed relatively.
4. The electric toothbrush of claim 1, wherein: and matched corrugated teeth are respectively arranged on the meshed end surfaces of the first matching module and the second matching module.
5. The electric toothbrush according to claim 1 or 4, characterized in that: the elastic component comprises a positioning part and a spring, wherein the positioning part is positioned in the cavity and sleeved on the driving shaft, the spring is sleeved on the periphery of the driving shaft, and two ends of the spring respectively abut against the positioning part and the driving seat.
CN202010664320.2A 2020-07-10 2020-07-10 Electric toothbrush Active CN111759516B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010664320.2A CN111759516B (en) 2020-07-10 2020-07-10 Electric toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010664320.2A CN111759516B (en) 2020-07-10 2020-07-10 Electric toothbrush

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CN111759516B true CN111759516B (en) 2024-09-13

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114652083A (en) * 2020-12-23 2022-06-24 青岛海尔洗衣机有限公司 scrubbing device
CN116919643A (en) * 2023-06-09 2023-10-24 盛宇亭 Brush tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212213924U (en) * 2020-07-10 2020-12-25 倍雅电子护理制品(苏州)有限公司 Electric toothbrush

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125268A1 (en) * 2005-05-25 2006-11-30 Craig Matthew Erskine-Smith Dental brush
DE202010010800U1 (en) * 2010-07-29 2010-10-21 Götte, Dieter, Dr.med. Device for the preventive and acute treatment of teeth and gums
CN108078641B (en) * 2016-11-21 2021-05-28 高露洁-棕榄公司 Oral care implement
CN209220559U (en) * 2018-07-23 2019-08-09 深圳市路科创意设计有限公司 Brush for electric toothbrush structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212213924U (en) * 2020-07-10 2020-12-25 倍雅电子护理制品(苏州)有限公司 Electric toothbrush

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