CN212326644U - Pressure sensing structure of electric toothbrush - Google Patents
Pressure sensing structure of electric toothbrush Download PDFInfo
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- CN212326644U CN212326644U CN202020359006.9U CN202020359006U CN212326644U CN 212326644 U CN212326644 U CN 212326644U CN 202020359006 U CN202020359006 U CN 202020359006U CN 212326644 U CN212326644 U CN 212326644U
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- motor
- pressure sensing
- motor bracket
- electric toothbrush
- support
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Abstract
The utility model discloses an electric toothbrush pressure induction structure, which comprises a casing with a cavity, a motor bracket component, a connecting rotating shaft as a rotating shaft, a pressure induction switch and a prompter controlled by the pressure induction switch, wherein the connecting rotating shaft passes through the side surface of the motor bracket component and is fixed in the cavity of the casing; the pressure sensing switch is fixed in the shell and corresponds to the tail of the motor bracket component. The utility model discloses when the brush head is to the partial big of tooth face pressure, can effectual warning user to avoid the brush head too big to the pressure of tooth flank of tooth, cause tooth face enamel wearing and tearing, harm tooth is healthy.
Description
Technical Field
The utility model relates to an electric toothbrush field especially indicates an electric toothbrush forced induction structure.
Background
Electric toothbrushes are new products that have emerged in recent years, and have revolutionized the oral care field at home and abroad. It has become an important member of the public oral health care. The electric toothbrush enables the brush head to generate high-frequency vibration to instantly decompose toothpaste into fine foam, deeply clean teeth gaps and simultaneously perform super-frequency friction on teeth, so that the effects of whitening the teeth and cleaning the oral cavity are achieved.
The pressure of the brush head on the tooth surface is a key factor influencing the cleaning effect and the health of teeth and periodontal pockets when brushing teeth. Excessive pressure can cause wear of enamel on tooth surface, wedge-shaped defect of tooth neck, gingival bleeding and atrophy, and damage to tooth and gum health. However, the electric toothbrush with the pressure sensing function in the market basically adopts a strong pressure type design, and has the defects that the pressure transmission of the control brush head to the tooth surface of the tooth is not smooth enough during tooth brushing, so that the force of the brush head to the tooth surface of the tooth cannot be well controlled during tooth brushing, the pressure sensing switch function cannot be turned on even if large force is applied to the tooth surface of the tooth by the brush head during tooth brushing, and a user cannot be reminded.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric toothbrush forced induction structure has solved among the prior art because of brushing the unable fine control of the dynamics of brush head to the tooth flank when brushing teeth, and the brush head can appear often not opening forced induction switch function to the great dynamics of exerting of tooth flank when brushing teeth, can't remind user's problem.
The technical scheme of the utility model is realized like this:
a pressure sensing structure of an electric toothbrush comprises a machine shell with a cavity, a motor support component, a connecting rotating shaft serving as a rotating shaft, a pressure sensing switch and a prompter controlled by the pressure sensing switch, wherein the connecting rotating shaft penetrates through the side surface of the motor support component and is fixed in the cavity of the machine shell; the pressure sensing switch is fixed in the shell and corresponds to the tail of the motor bracket component.
As a preferred embodiment of the utility model, still include battery holder and support upper cover, the motor bracket subassembly passes through connect the pivot with the battery holder is articulated, the support upper cover is fixed the front end of battery holder forms and holds the cavity of motor bracket subassembly, the rear end of battery holder has the cavity that holds the battery.
As an embodiment of the present invention, the pressure-sensitive switch is fixed at the rear end of the PCB, and the front end of the PCB is electrically connected to the indicator.
As a preferred embodiment of the utility model, the prompting device is an annular LED prompting lamp, and is sleeved at the front end of the battery support and the support upper cover.
As a preferred embodiment of the present invention, the motor bracket assembly includes a motor, a motor bracket cover, and an elastic reset member, the motor is embedded in the motor bracket, the motor bracket cover is fixed at the rear end of the motor bracket, and the elastic reset member is fixed on the motor bracket cover.
As a preferred embodiment of the present invention, the motor bracket assembly further includes a shockproof washer, and the shockproof washer is sleeved on the outer surfaces of the motor bracket and the motor bracket cover.
As a preferred embodiment of the present invention, the motor bracket cover includes a barrel-shaped step for placing the elastic restoring member.
As a preferred embodiment of the present invention, the connecting shaft is a shaft rod made of hard material, including but not limited to stainless steel, brass, and plastic.
The beneficial effects of the utility model reside in that: when the pressure of the brush head on the tooth surface is larger, the user can be effectively reminded, so that the phenomenon that the tooth surface is abraded by the brush head due to the overlarge pressure on the tooth surface to damage the tooth health is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an exploded view of a structural component of a motor bracket assembly of the present invention;
FIG. 2 is a schematic sectional view of a motor bracket assembly structure component casing according to the present invention;
FIG. 3 is an exploded view of a structural component of the pressure sensing mechanism of the present invention;
FIG. 4 is a schematic sectional view of a shell of a structural component of the pressure sensing mechanism of the present invention;
fig. 5 is a schematic view of a partial cross section of the whole device and a partial shell of the pressure sensing mechanism of the present invention.
In the figure, 1, a motor; 2. a motor bracket; 3. a motor bracket cover; 4. a return spring; 5. fixing screws; 6. a vibration-proof washer; 7. connecting the rotating shaft; 8. a battery holder; 9. an upper cover of the bracket; 10. a pressure sensitive switch; 11. a prompter; 12. a brush head; 13. a battery; 14. a housing; 200. a motor bracket assembly; 100. the motor bracket component, the battery bracket and the gap between the upper covers of the bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, the utility model provides a pressure sensing structure for electric toothbrush, which comprises a housing 14 with a cavity, a motor bracket assembly 200, a connecting shaft 7 as a rotating shaft, a pressure sensing switch 10 and a prompter 11 controlled by the pressure sensing switch 10, wherein the connecting shaft 7 passes through the side surface of the motor bracket assembly 200 and is fixed in the cavity of the housing 14; the pressure sensitive switch 10 is fixed inside the casing 14 corresponding to the position of the rear portion of the motor bracket assembly 200. The motor assembly rotates up and down around the connecting rotating shaft 7 through the connecting rotating shaft 7 mechanism connection; after rotating to a certain extent, the pressure induction switch 10 is applied with force, and the prompter 11 is opened, thereby achieving the purpose of prompting the user.
The utility model discloses still include battery holder 8 and support upper cover 9, motor bracket assembly 200 is articulated with battery holder 8 through connecting pivot 7, and support upper cover 9 is fixed at battery holder 8's front end, forms the cavity that holds motor bracket assembly 200, and battery holder 8's rear end has the cavity that holds battery 13. The bottom of the middle end of the battery bracket 8 is provided with a square hole, and the left side and the right side of the square hole are provided with round holes. The motor bracket assembly 200 is arranged on the battery bracket 8; the raised step arranged at the middle position of the lower part of the front end of the motor bracket 2 is matched with the square hole arranged at the bottom of the middle end of the battery bracket 8; the connecting rotating shaft 7 penetrates through the round holes formed in the left side and the right side of the square hole of the motor support 2 and the round holes formed in the left side and the right side of the square hole of the battery support 8 respectively, the motor support assembly 200 and the battery support 8 are connected and supported, a certain gap is formed between the battery supports 8 of the motor support assembly 200, and the motor support assembly 200 can rotate around the connecting rotating shaft 7.
The pressure-sensitive switch 10 is fixed at the rear end of the PCB, and the front end of the PCB is electrically connected with the prompter 11. The prompter 11 is an annular LED prompting lamp and is sleeved at the front ends of the battery bracket 8 and the bracket upper cover 9. The PCB board is placed on the bracket upper cover 9.
The motor bracket cover 3 includes a barrel-shaped step for placing the elastic restoring member. The elastic reset piece is a reset spring 4, the reset spring 4 is placed in a barrel-shaped step arranged at the middle upper part of the motor support cover 3, and the reset spring 4 cannot move in the barrel-shaped step arranged at the middle upper part of the motor support cover 3. The fixing screw 5 is placed on a step through hole arranged at the lower part of the motor bracket cover 3 and screwed into a screw hole arranged at the lower part of the rear end of the motor bracket 2. So that the motor bracket cover 3 can be securely placed at the rear ends of the motor 1 and the motor bracket 2.
The motor bracket assembly 200 further includes a vibration-proof washer 6, and the vibration-proof washer 6 is sleeved on the outer surface of the motor bracket 2 and the motor bracket cover 3.
The connecting shaft 7 is a shaft rod made of hard material, including but not limited to stainless steel, brass, and plastic. The connecting rotating shaft 7 is a round hardware shaft, has smooth surface, no burrs, high hardness and difficult deformation.
The motor 1 is firmly placed on the motor bracket 2, and the motor bracket cover 3 at the rear end is fastened on the motor bracket 2 and is fixed tightly by screws, so that an assembly which cannot be loosened is formed. Placing the motor assembly on the battery bracket 8, and then connecting the motor assembly with the battery bracket 8 through the connecting rotating shaft 7; the sizes of the holes in the motor support 2 and the battery support 8 are different, the connecting shaft penetrates through the holes to support the front end of the motor assembly to prevent the front end of the motor assembly from touching the battery support 8, and the shockproof gasket 6 is in contact with the battery support 8 at the rear end of the motor assembly to separate the motor support 2 from the battery support 8, so that a certain gap is formed between the motor assembly and the battery support 8 as well as between the motor assembly and the upper cover 9 of the support; meanwhile, the shockproof gasket 6 can effectively absorb the shock transmission of the motor, so that the shock of the main machine casing 14 is weakened, and the noise is reduced. The lower end of the reset spring 4 is placed in a barrel-shaped step arranged on the motor support cover 3, and the upper end of the reset spring is pressed by a barrel-shaped step arranged on the lower part of the rear end of the support upper cover 9 and can not move freely. By utilizing the lever principle: if a downward force is applied to the front end of the motor shaft, the motor bracket assembly 200 rotates around the connecting shaft 7, so that the motor shaft sinks and the motor bracket cover 3 tilts upward. The same principle is that: if a downward force is applied to the rear cover of the motor bracket 2, the motor bracket assembly 200 rotates around the connecting rotation shaft 7, so that the motor shaft floats upward and the motor bracket cover 3 sinks downward.
When the user brushes teeth, the pressure of the brush head 12 on the tooth surface reaches a certain range degree, which is equivalent to applying a downward force on the motor shaft, the brush head 12 drives the motor bracket assembly 200 to rotate around the linkage rotating shaft, the motor bracket cover 3 tilts up at the moment, when the rotating size distance reaches a set value, the rear cover of the motor bracket 2 touches and opens the pressure induction switch 10, so that the pressure induction lamp lights up, and the user is reminded.
When the pressure applied to the brush head 12 is reduced to a certain range, the pressure is arranged on the rear cover of the motor bracket 2, the elastic force generated by the reset spring 4 compressed by the bracket upper cover 9 acts on the rear cover of the motor bracket 2, which is equivalent to applying a downward force to the rear cover of the motor bracket 2, the motor bracket cover 3 sinks down at the moment, so that the motor bracket assembly 200 is driven to sink together, when the rotating size distance reaches the set value, the rear cover of the motor bracket 2 can not touch the pressure induction switch 10 any more, so that the pressure induction switch 10 is closed, the pressure induction lamp is extinguished, and the user is reminded.
The utility model discloses an electric toothbrush forced induction functional structure has adopted the thick stick principle: the motor assembly and the battery bracket 8 are connected together by the connecting rotating shaft 7, so that the motor assembly freely rotates up and down around the connecting rotating shaft 7; the motor support assembly 200 drives the brush head 12 to return to the original normal position by the elastic force of the reset slingshot, and the pressure required for opening the pressure sensing switch 10 can be adjusted by adjusting the strength of the slingshot.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pressure sensing structure of an electric toothbrush comprises a machine shell with a cavity, and is characterized in that: the pressure sensing switch is arranged on the shell, and the pressure sensing switch is connected with the motor bracket component through a pressure sensing switch; the pressure sensing switch is fixed in the shell and corresponds to the tail of the motor bracket component.
2. The pressure sensing structure of an electric toothbrush according to claim 1, wherein: still include battery support and support upper cover, the motor support subassembly passes through connect the pivot with the battery support is articulated, the support upper cover is fixed the front end of battery support forms and holds the cavity of motor support subassembly, the rear end of battery support has the cavity that holds the battery.
3. The pressure sensing structure of an electric toothbrush according to claim 2, wherein: the pressure sensing switch is fixed at the rear end of the PCB, and the front end of the PCB is electrically connected with the prompter.
4. A pressure sensing structure of an electric toothbrush according to claim 3, wherein: the prompter is an annular LED prompting lamp and is sleeved at the front ends of the battery bracket and the bracket upper cover.
5. The pressure sensing structure of an electric toothbrush according to claim 1, wherein: the motor bracket component comprises a motor, a motor bracket cover and an elastic resetting piece, wherein the motor is embedded in the motor bracket, the motor bracket cover is fixed at the rear end of the motor bracket, and the elastic resetting piece is fixed on the motor bracket cover.
6. The pressure sensing structure of an electric toothbrush according to claim 5, wherein: the motor support assembly further comprises a shockproof washer, and the shockproof washer is sleeved on the outer surfaces of the motor support and the motor support cover.
7. The pressure sensing structure of an electric toothbrush according to claim 5, wherein: the motor bracket cover includes a barrel-shaped step for placing the elastic restoring member.
8. A pressure sensing structure of an electric toothbrush according to any one of claims 1 to 7, wherein: the connecting rotating shaft is a shaft rod made of hard materials, including but not limited to stainless steel, brass and plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359006.9U CN212326644U (en) | 2020-03-19 | 2020-03-19 | Pressure sensing structure of electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359006.9U CN212326644U (en) | 2020-03-19 | 2020-03-19 | Pressure sensing structure of electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212326644U true CN212326644U (en) | 2021-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020359006.9U Active CN212326644U (en) | 2020-03-19 | 2020-03-19 | Pressure sensing structure of electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212326644U (en) |
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2020
- 2020-03-19 CN CN202020359006.9U patent/CN212326644U/en active Active
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