CN220089672U - Toothbrush head and electric toothbrush - Google Patents
Toothbrush head and electric toothbrush Download PDFInfo
- Publication number
- CN220089672U CN220089672U CN202321147938.7U CN202321147938U CN220089672U CN 220089672 U CN220089672 U CN 220089672U CN 202321147938 U CN202321147938 U CN 202321147938U CN 220089672 U CN220089672 U CN 220089672U
- Authority
- CN
- China
- Prior art keywords
- head
- brush head
- toothbrush
- driving gear
- transmission shaft
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 abstract description 9
- 210000003128 head Anatomy 0.000 description 33
- 239000000047 product Substances 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 9
- 230000006378 damage Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 208000032843 Hemorrhage Diseases 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 4
- 210000000214 mouth Anatomy 0.000 description 4
- 208000006558 Dental Calculus Diseases 0.000 description 3
- 208000002064 Dental Plaque Diseases 0.000 description 3
- 206010018276 Gingival bleeding Diseases 0.000 description 3
- 206010044029 Tooth deposit Diseases 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 3
- 208000007565 gingivitis Diseases 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229940034610 toothpaste Drugs 0.000 description 2
- 239000000606 toothpaste Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The utility model discloses a toothbrush head and an electric toothbrush, which comprise a shell, wherein the end part of the shell is provided with a brush head mounting end, and a groove is formed in the brush head mounting end; one end of the brush head face seat is provided with bristles, the other end of the brush head face seat is integrally provided with a toothed ring with an annular toothed structure, one end of the toothed ring is provided with a fixed end matched with the brush head mounting end, and the brush head face seat is mounted on the brush head mounting end through the fixed end; the driving gear is arranged in the groove, the driving gear is meshed with the toothed ring, the driving gear is fixedly connected with one end of a transmission shaft of the toothbrush, the other end of the transmission shaft is connected with the output end of the motor, and the driving gear drives the brush head back seat to rotate forward and backward through the toothed ring. The structure can efficiently clean the inner surface and the outer surface of teeth and the gaps between teeth, the waterproof effect can be improved due to the multilayer structure of the inner shell arranged in the shell, and the use safety and the service life of the product are improved.
Description
Technical Field
The utility model relates to the technical field of electric toothbrushes, in particular to a toothbrush head and an electric toothbrush.
Background
As a novel oral cavity cleaning tool, the electric toothbrush gradually steps into daily life, and is accepted by consumers because of the advantages of convenience, labor saving and strong cleaning power. The electric toothbrush has the working principle that the brush head generates high-frequency vibration through the rapid rotation or vibration of the motor core, toothpaste is instantaneously decomposed into fine foam to deeply clean the gaps between teeth, and meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massaging effect on gum tissues.
Manual toothbrushes often suffer from unclean tooth cleaning, and uneven manual force and motion can cause bleeding of the gums and gum injury. The brush head of the acoustic wave electric toothbrush on the market generally rotates faster, has poor effect of cleaning residual substances in gums or tooth gaps, such as bleeding gums, tooth damage and the like caused by improper use, so that an electric toothbrush with more proper rotating speed is needed to solve the problems, the rotating speed is reduced, the inner and outer surfaces of teeth and the tooth gaps can be cleaned better, dental plaque and dental calculus can be removed more thoroughly, and gingivitis and gingival bleeding are reduced.
In use, the electric toothbrush inevitably contacts water, the waterproof performance of the electric toothbrush cannot last due to poor stability and sealing performance of a sealing structure of the product, the electric toothbrush motor is short-circuited and equipment is damaged due to the fact that external moisture permeates into the electric toothbrush, and the good waterproof structure is related to the use safety of the product and the service life of the product, so that the waterproof performance of the product is improved greatly.
Disclosure of Invention
The utility model provides a transmission structure of an electric toothbrush and the electric toothbrush, and aims to solve the defects in the prior art.
In order to solve the problems of using obstacle or poor cleaning effect and the like caused by the fact that the electric toothbrush head rotates generally faster and the swing amplitude of the toothbrush head is smaller, the utility model provides the toothbrush head and the electric toothbrush, and the structure of the toothbrush head is further improved; meanwhile, in order to prevent the problem that the service life of the product is influenced by the short circuit of the motor and the damage of equipment caused by the penetration of moisture into the product in the use process, the waterproof performance of the product is further improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a toothbrush head, the toothbrush head comprising:
the end part of the shell is provided with a brush head mounting end, and a groove is formed in the brush head mounting end;
the brush head face seat is provided with bristles at one end, an annular toothed ring is integrally formed at the other end, one end provided with the toothed ring forms a fixed end matched with the brush head mounting end, and the brush head face seat is mounted on the brush head mounting end through the fixed end;
the driving gear is arranged in the groove, the driving gear is meshed with the toothed ring, the toothbrush head further comprises a transmission shaft, one end of the transmission shaft is fixedly connected with the driving gear, the other end of the transmission shaft is connected with the motor output end of the toothbrush, and the driving gear drives the toothbrush head face seat to rotate forward and backward through the toothed ring.
Further, an inner shell is arranged in the shell, a through hole is formed in the top of the inner shell, and a transmission shaft penetrates through the through hole and is fixedly connected with the driving gear.
Further, the motor driving device also comprises a hollow fixed rod arranged in the inner shell, the transmission shaft is inserted into one end of the fixed rod, and the other end of the fixed rod is connected with the output end of the motor.
Further, the brush head comprises a brush head panel with a hollowed-out middle part, the brush head panel penetrates through the brush hair to cover the side face of the brush head surface seat, and the bottom edge of the brush head panel is tightly connected with the end part of the shell.
Further, a tangent plane is formed at the joint of the shell and the brush head mounting end, and a notch matched with the shape of the tangent plane is arranged on the brush head panel.
Further, one end of the brush head mounting end, which is close to the inner shell, is provided with a supporting part, the supporting part is provided with a transmission shaft fixing position, and the transmission shaft is mounted on the transmission shaft fixing position.
Further, a columnar mounting head is arranged at the mounting end of the brush head, and the brush head face seat is mounted on the mounting head through the fixed end.
Further, the brush head comprises a brush head base, wherein the top of the brush head base is clamped with the inner shell, and the bottom of the brush head base is clamped with the outer shell.
Further, the driving gear is a bevel gear.
The utility model also provides an electric toothbrush which comprises the toothbrush head.
The utility model has the advantages that: the utility model provides a toothbrush head and an electric toothbrush, which are improved in that the rotating speed of the toothbrush head is reduced, meanwhile, the inner surface, the outer surface and the tooth gaps of teeth are efficiently cleaned, dental plaque, dental calculus and gingivitis and gingival bleeding are thoroughly and thoroughly removed, the steering is stable, the materials are fewer, the assembly is simple, the cost is low, the quality of a product is ensured, the waterproof effect can be improved due to the multilayer structure of the inner shell arranged in the shell, the use safety of the product is improved, and the service life of the product is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a toothbrush head of the present utility model;
fig. 2 is an exploded view of the structure of the toothbrush head of the present utility model.
Detailed Description
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", 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 utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. 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 utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixedly connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be directly connected or indirectly connected through an intermediary unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, 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.
The present utility model will be further described and illustrated with reference to specific embodiments and drawings.
As a novel oral cavity cleaning tool, the electric toothbrush gradually steps into daily life, and is accepted by consumers because of the advantages of convenience, labor saving and strong cleaning power. The electric toothbrush has the working principle that the brush head generates high-frequency vibration through the rapid rotation or vibration of the motor core, toothpaste is instantaneously decomposed into fine foam to deeply clean the gaps between teeth, and meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massaging effect on gum tissues.
Manual toothbrushes often suffer from unclean tooth cleaning, and uneven manual force and motion can cause bleeding of the gums and gum injury. The brush head of the acoustic wave electric toothbrush on the market generally rotates faster, has poor effect of cleaning residual substances in gums or tooth gaps, such as bleeding gums, tooth damage and the like caused by improper use, so that an electric toothbrush with more proper rotating speed is needed to solve the problems, the rotating speed is reduced, the inner and outer surfaces of teeth and the tooth gaps can be cleaned better, dental plaque and dental calculus can be removed more thoroughly, and gingivitis and gingival bleeding are reduced.
As shown in fig. 1-2, in a first embodiment of the present utility model, the toothbrush head comprises a housing 1, a head face seat 2 and a driving gear 31, a head mounting end 11 is arranged at the end of the housing 1, a groove for accommodating the free rotation of the driving gear 31 is formed in the head mounting end 11, and an unsealed gap is formed at the joint of the housing and the head mounting end; one end of the brush head face seat 2 is provided with bristles 21, the bristles can be bristles or soft bristles, the other end of the brush head face seat is integrally formed with a toothed ring 22 with an annular toothed structure, one end provided with the toothed ring 22 forms a fixed end 23 matched with the brush head mounting end 11, and the brush head face seat 2 is mounted on the brush head mounting end 11 through the fixed end 23; the driving gear 31 is arranged in the groove, the driving gear 31 is meshed with the toothed ring 22, a transmission shaft 32 with a knurled end is manufactured through a metal knurling process, the transmission shaft 32 of the toothbrush is fixedly connected with a through hole of the driving gear 31 through interference fit, in other embodiments of the utility model, the driving gear 31 and the transmission shaft 32 of the toothbrush are integrally formed, and other fixed connection modes besides the two connection modes are also within the protection scope of the scheme. The other end of the transmission shaft 32 is connected with the output end of the motor, and the driving gear 31 drives the brush head face seat 2 to rotate forward and backward through the toothed ring 22.
In use, the electric toothbrush inevitably contacts water, the waterproof performance of the electric toothbrush cannot last due to poor stability and sealing performance of a sealing structure of the product, the electric toothbrush motor is short-circuited and equipment is damaged due to the fact that external moisture permeates into the electric toothbrush, and the good waterproof structure is related to the use safety of the product and the service life of the product, so that the waterproof performance of the product is improved greatly. An inner shell 3 is sleeved in the shell 1, the inner shell 3 is tightly connected with the shell 1, a through hole is formed in the top of the inner shell 3, and a transmission shaft 32 penetrates through the through hole and is fixedly connected with a driving gear 31.
In another embodiment of the present utility model, an inner housing 3 is sleeved inside the housing 1, the inner housing 3 is tightly connected with the housing 1, a through hole is provided at the top of the inner housing 3, a transmission shaft 32 passes through the through hole and is fixedly connected with the driving gear 31, a hollow fixing rod 33 is further provided inside the inner housing 3, the transmission shaft 32 is inserted into one end of the fixing rod 33, the other end of the fixing rod 33 is connected with the output end of the motor, and in operation, the transmission shaft 32 is driven to rotate by the fixing rod 33. The multi-layer close-connected shell structure further improves the waterproof performance and the waterproof effect of the product compared with the brush head structure of the traditional electric toothbrush, and better user experience is created in product use.
The junction of casing 1 and brush head installation end 11 forms the tangent plane, still be provided with brush head panel 4 on the brush head face seat 2, the bottom edge of brush head panel 4 and the tip zonulae occludens of casing 1, be provided with an curved breach in the one end that brush head panel 4 is close to interior casing 3, the effect is that the cooperation gear freely rotates in the recess of brush head installation end 11, brush head panel 4 passes brush hair 21 cover brush head face seat 2 the side and complete and the tip zonulae occludens of casing 1, the shape of breach and brush head installation end 11 and the tangent plane looks adaptation that casing 1 hookup location formed and mutually inseparable cooperation form a whole, and in the inside formation cavity, in other embodiments, the breach shape also can be other arbitrary shapes with tangent plane shape looks adaptation. The brush head panel 4 has the function of improving the overall sealing performance of the brush head mounting end 11 and also has a certain aesthetic property.
The brush head mounting end 11 is provided with a support portion near one end of the inner shell 3, a transmission shaft fixing position is arranged on the support portion, the transmission shaft 32 is mounted on the transmission shaft fixing position, and the transmission shaft fixing position is used for fixing the transmission shaft 32 to enable the transmission shaft 32 to rotate in a limited range.
The embodiment also comprises a brush head base 5, wherein a step hole is formed in the top of the brush head base 5, the top of the brush head base 5 is clamped with the bottom of the inner shell 3, a circle of annular outer edge is arranged at the bottom of the brush head base 5, the brush head base 5 is clamped at the bottom of the shell 1, and a through hole penetrating through the brush head base 5 is formed for connecting a connecting rod of the output end of the motor.
In another embodiment of the utility model, the toothbrush head comprises a shell 1, a toothbrush head face seat 2 and a driving gear 31, wherein a toothbrush head mounting end 11 is arranged at the end part of the shell 1, a columnar mounting head is arranged at the toothbrush head mounting end 11, a groove for accommodating the free rotation of the driving gear 31 is formed around the columnar mounting head, and a tangent plane is formed at the joint of the shell and the toothbrush head mounting end; the brush hair 21 is planted to one end of brush head face seat 2, the ring gear 22 of annular tooth form structure is equipped with to the other end integrated into one piece, the one end that is equipped with ring gear 22 forms the stiff end 23 with brush head installation end 11 adaptation, brush head face seat 2 passes through stiff end 23 to be installed on the installation head, brush hair 21 is planted to one end of brush head face seat 2, brush hair that plants can be bristle or soft hair, driving gear 31 sets up in the recess, driving gear 31 and ring gear 22 intermesh, for improving the frictional force between gear and the axle, make the transmission shaft 32 of one end area knurl through metal knurl technology, the transmission shaft 32 of toothbrush utilizes the through-hole interference fit fixed connection of one end and driving gear 31 of taking the knurl, motor output is connected to the other end of transmission shaft 32, driving gear 31 passes through ring gear 22 transmission brush head face seat 2 forward and backward rotation. An inner shell 3 is sleeved in the shell 1, the inner shell 3 is tightly connected with the shell 1, a through hole is formed in the top of the inner shell 3, and a transmission shaft 32 penetrates through the through hole and is fixedly connected with a driving gear 31.
In another embodiment of the utility model, an electric toothbrush is provided, the electric toothbrush comprises a brush handle, a toothbrush base and a toothbrush head, the interior of the brush handle comprises a motor, a storage battery, a circuit board and a transmission device, the circuit board is respectively electrically connected with the motor and the storage battery, a button electrically connected with the circuit board is arranged outside the brush handle, the transmission device comprises a connecting rod, one end of the connecting rod forms a tangent plane-shaped brush head mounting end, the toothbrush head is arranged on the brush handle and comprises a shell 1, a brush head face seat 2 and a driving gear 31, the end part of the shell 1 is provided with a brush head mounting end 11, a groove for accommodating the free rotation of the driving gear 31 is formed in the brush head mounting end 11, and a tangent plane is formed at the joint of the shell and the brush head mounting end; one end of the brush head face seat 2 is provided with bristles 21, the bristles can be bristles or soft bristles, the other end of the brush head face seat is integrally formed with a toothed ring 22 with an annular toothed structure, one end provided with the toothed ring 22 forms a fixed end 23 matched with the brush head mounting end 11, and the brush head face seat 2 is mounted on the brush head mounting end 11 through the fixed end 23; the driving gear 31 is arranged in the groove, the driving gear 31 is meshed with the toothed ring 22, a transmission shaft 32 with knurled one end is manufactured through a metal knurling process for improving friction force between the gear and the shaft, the transmission shaft 32 of the toothbrush is fixedly connected with a through hole of the driving gear 31 through interference fit, an inner shell 3 is sleeved in the shell 1, the inner shell 3 is tightly connected with the shell 1, a through hole is formed in the top of the inner shell 3, the transmission shaft 32 penetrates through the through hole and is fixedly connected with the driving gear 31, a hollow fixing rod 33 is further arranged in the inner shell 3, the transmission shaft 32 is inserted into one end of the fixing rod 33, one end of a connecting rod in a tangent plane shape is arranged in the fixing rod 33, and a control button starts a motor to drive a brush head panel to rotate forwards and reversely through a transmission device.
While the utility model has been described in detail with respect to a toothbrush head and an electric toothbrush, specific examples are set forth herein to illustrate the principles and embodiments of the utility model, and the above examples are only for aiding in the understanding of the core concept of the utility model; also, as will be apparent to those skilled in the art in light of the present teachings, the present disclosure should not be limited to the specific embodiments and applications described herein.
Claims (10)
1. A toothbrush head, the toothbrush head comprising:
the end part of the shell is provided with a brush head mounting end, and a groove is formed in the brush head mounting end;
the brush head face seat is characterized in that bristles are planted at one end of the brush head face seat, a toothed ring with an annular toothed structure is integrally formed at the other end of the brush head face seat, a fixed end matched with the brush head mounting end is formed at one end of the toothed ring, and the brush head face seat is mounted on the brush head mounting end through the fixed end;
the driving gear is arranged in the groove, the driving gear is meshed with the toothed ring, the toothbrush head further comprises a transmission shaft, one end of the transmission shaft is fixedly connected with the driving gear, the other end of the transmission shaft is connected with the motor output end of the toothbrush, and the driving gear drives the toothbrush head face seat to rotate forward and backward through the toothed ring.
2. The toothbrush head according to claim 1 wherein an inner housing is provided inside the housing, a through hole is provided at a top of the inner housing, and the transmission shaft is fixedly connected to the driving gear through the through hole.
3. The toothbrush head of claim 2, further comprising a hollow fixing rod disposed in the inner housing, wherein the transmission shaft is inserted into one end of the fixing rod, and the other end of the fixing rod is connected to the output end of the motor.
4. A toothbrush head according to claim 3 further comprising a hollow-in-the-middle head panel passing through the bristles to cover the sides of the head face holder, the bottom edge of the head panel being in close contact with the ends of the housing.
5. The toothbrush head of claim 4, wherein a section is formed at the junction of the housing and the mounting end of the toothbrush head, and a notch adapted to the shape of the section is formed in the panel of the toothbrush head.
6. The toothbrush head according to claim 2, wherein a supporting portion is provided at an end of the brush head mounting end near the inner housing, a drive shaft fixing position is provided on the supporting portion, and the drive shaft is mounted on the drive shaft fixing position.
7. The toothbrush head of claim 1, wherein the brush head mounting end is provided with a columnar mounting head, and the brush head face seat is mounted on the mounting head through a fixed end.
8. The toothbrush head of claim 2, further comprising a head base, wherein a top of the head base is engaged with the inner housing and a bottom of the head base is engaged with the housing.
9. The toothbrush head according to any one of claims 1 to 8 wherein the drive gear is a bevel gear.
10. An electric toothbrush comprising a brush head according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147938.7U CN220089672U (en) | 2023-05-13 | 2023-05-13 | Toothbrush head and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147938.7U CN220089672U (en) | 2023-05-13 | 2023-05-13 | Toothbrush head and electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220089672U true CN220089672U (en) | 2023-11-28 |
Family
ID=88867444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321147938.7U Active CN220089672U (en) | 2023-05-13 | 2023-05-13 | Toothbrush head and electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220089672U (en) |
-
2023
- 2023-05-13 CN CN202321147938.7U patent/CN220089672U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220089672U (en) | Toothbrush head and electric toothbrush | |
| CN112515800A (en) | Electric toothbrush head and electric toothbrush | |
| CN210158724U (en) | Three-side hair automatic tooth cleaner brush head and tooth cleaner | |
| CN211704913U (en) | Improved electric toothbrush | |
| CN212015841U (en) | Electric toothbrush head | |
| CN217310679U (en) | Novel electric toothbrush | |
| CN111012538A (en) | Electric tooth brush | |
| CN212326648U (en) | Electric tooth brush | |
| CN212015842U (en) | Electric tooth brush | |
| KR200348374Y1 (en) | Electric Toothbrush | |
| CN217040393U (en) | Toothbrush handle and electric toothbrush | |
| CN220175292U (en) | Improved rail type electric toothbrush | |
| CN213552551U (en) | U-shaped electric toothbrush | |
| CN214761571U (en) | Electric toothbrush | |
| CN215458884U (en) | Sound wave electric toothbrush | |
| CN213047420U (en) | Electric tooth brush | |
| CN214434636U (en) | Oscillating electric toothbrush | |
| CN109793585B (en) | Three-side-hair automatic tooth cleaner brush head, tooth cleaner and cleaning method | |
| CN217014305U (en) | Transmission structure of U-shaped electric toothbrush | |
| CN214285262U (en) | Electric toothbrush head and electric toothbrush | |
| CN217066652U (en) | Replaceable direct-insertion type electric dental floss device | |
| CN214805609U (en) | Electric toothbrush output shaft moving mechanism and electric toothbrush thereof | |
| CN214761560U (en) | Electric toothbrush head | |
| CN213430720U (en) | Power supply device for electric toothbrush | |
| CN113229977B (en) | Electric tooth brush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |