CN211187609U

CN211187609U - Electric tooth brush

Info

Publication number: CN211187609U
Application number: CN201921565248.7U
Authority: CN
Inventors: 陈连成; 严锦来
Original assignee: Shenzhen Yunding Information Technology Co Ltd
Current assignee: Shenzhen Yunding Information Technology Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-08-07
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to an electric toothbrush, include: the pressure sensing mechanism comprises a first sensing piece arranged at the end part of the driving device and a second sensing piece arranged opposite to the first sensing piece, the rotating mechanism is arranged between the driving device and the main body bracket, the driving device can rotate relative to the rotating mechanism, a brush head is arranged on a driving shaft of the driving device, the bristles of the brush head face the second sensing part, when the brush hair side atress of brush head, first response piece and second response piece are close to relatively, and drive arrangement deceleration falls the frequency or stop work, and pressure sensing mechanism adopts first response piece and second response piece to control, and relative distance is bigger, and the forced induction value is more stable, accurate, can prevent to brush teeth, according to the pressure degree too big and damage tooth or gum, plays the effect of protection tooth and gum.

Description

Electric tooth brush

Technical Field

The utility model relates to a toothbrush control technical field especially relates to an electric toothbrush.

Background

At present, the electric toothbrush is more and more popularized to the life of people, and gradually becomes a necessity along with the popularization of the market, and the working principle of the electric toothbrush is as follows: the driving device is used for driving the driving shaft to rotate and vibrate fast, so that the brush head generates high-frequency vibration to decompose fine foam of the toothpaste instantly and deeply clean teeth gaps.

Compared with the common toothpaste, the electric toothbrush can more thoroughly remove dental plaque and reduce oral diseases such as periodontal disease, gingival bleeding and the like. When the electric toothbrush is normally used, the electric toothbrush is held to exert force to enable the toothbrush head to be in contact with teeth and gums for brushing teeth, the force for pressing in the process is difficult to control accurately, the force is small, the toothbrush cannot be used cleanly, the force is large, the teeth and the gums can be damaged, and particularly, teenagers and children in growth can be used. Therefore, there is a need to control the brushing intensity of an electric toothbrush.

For the traditional electric toothbrush, the pressure can only be reminded to be too large, the precision is very low, the teeth, the gum and the oral cavity can not be well protected, and people can hardly remind better control of tooth brushing strength through the pressure in the tooth brushing process. Therefore, people need to concentrate attention to control the tooth brushing strength and influence the use feeling in the process of brushing teeth by using the electric toothbrush, and when the tooth brushing is neglected, the teeth or the gum is easily damaged due to overlarge tooth brushing pressure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric toothbrush, aim at solving traditional electric toothbrush and easily because of brushing teeth press the intensity too big, and injure the problem of tooth or gum.

An electric toothbrush, comprising: pressure sensing mechanism, slewing mechanism, shell and locate the inside main part support of shell, be equipped with drive arrangement on the main part support, pressure sensing mechanism is including locating the first response piece of drive arrangement tip and with the relative second response piece that sets up of first response piece, slewing mechanism locates drive arrangement with between the main part support, just drive arrangement can be relative slewing mechanism rotates, be equipped with the brush head in drive arrangement's the drive shaft, just the brush hair orientation of brush head the second response piece works as the brush hair side atress of brush head, first response piece with the second response piece is close to relatively, and drive arrangement deceleration is fallen the frequency or stop work.

In one embodiment, the pressure sensing mechanism further includes a driving device connecting end and a spring, the driving device connecting end is disposed on a side of the driving device end away from the brush head, the spring is disposed between the second sensing element and the driving device connecting end, and the first sensing element and the second sensing element are kept away under the control of the spring in a normal state.

In one embodiment, two limiting pins are arranged on the driving device connecting end, the outermost ends of the driving device connecting end are oppositely arranged, and each limiting pin is provided with one spring.

In one embodiment, the driving device connecting end is provided with a slot for accommodating the first sensing element, so that the first sensing element and the second sensing element have a gap when the spring is in a compressed state.

In one embodiment, the rotating mechanism includes a rotating shaft and a connecting seat, the connecting seat is disposed on the housing of the driving device, and the rotating shaft penetrates through the shaft hole of the connecting seat and the mounting hole of the main body bracket, so that the driving device can rotate relative to the rotating shaft.

In one embodiment, a sealing ring is arranged at the upper end of the main body support, and the sealing ring is extruded with the outer wall of the main body support in the inner cavity of the shell to form a waterproof seal.

In one embodiment, the sealing ring comprises a longitudinal seal and a transverse seal which are integrally formed, the longitudinal seal is an annular waterproof bulge which is longitudinally arranged, the annular waterproof bulge forms a first layer of waterproof mechanism under the extrusion of a first horizontal end surface and a second horizontal end surface, the first horizontal end surface is positioned at the lower end of the annular waterproof bulge, the second horizontal end surface is positioned at the upper end of the annular waterproof bulge, the transverse seal waterproof sealing ring forms a second layer of waterproof mechanism under the extrusion of an inner end surface and an outer end surface, and the inner end surface and the outer end surface are vertical end surfaces formed by side surfaces.

In one embodiment, the outer wall of the main body bracket is provided with a limiting groove for accommodating the waterproof sealing ring.

In one embodiment, the electric toothbrush further comprises a driving device fixing bracket, and the driving device is mounted on the main body bracket through the driving device fixing bracket.

In one embodiment, a hole for the upper end of the limit pin to pass through is formed in the bracket at the upper end of the limit pin.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

foretell electric toothbrush, be equipped with pressure sensing mechanism, pressure sensing mechanism is including the first response piece of locating the drive arrangement tip and the second response piece that sets up relatively with first response piece, slewing mechanism locates between drive arrangement and the main part support, and drive arrangement can slewing mechanism rotate relatively, be equipped with the brush head in drive arrangement's the drive shaft, and the brush hair of brush head is towards the second response piece, brush hair side atress when the brush head, and when the pressure value reaches the default, first response piece is close to relatively with the second response piece, pressure sensing mechanism is triggered, control drive arrangement deceleration is divided down the frequency, stop work even, ensure the tooth, the gum, the oral cavity can not receive the injury. The first sensing piece and the second sensing piece are close to each other to generate relative displacement, so that the capacity value of the second sensing piece is changed, and pressure protection is achieved. When the electric toothbrush stops being used, the first sensing part and the second sensing part are kept in a separated state. The pressure sensing mechanism adopts the first sensing piece of first sensing piece and the second sensing piece to control, and relative distance is bigger, and the forced induction value is more stable, accurate. Therefore, the pressure sensing mechanism can prevent the teeth or the gum from being damaged due to excessive pressure during tooth brushing, and plays a role in protecting the teeth and the gum.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.

Wherein:

FIG. 1 is a cross-sectional view of an embodiment of an electric toothbrush;

FIG. 2 is an enlarged view of the powered toothbrush of FIG. 1 at A;

FIG. 3 is a schematic view of the inner core of the electric toothbrush shown in FIG. 1;

FIG. 4 is a cross-sectional view of the inner core of the electric toothbrush shown in FIG. 1;

FIG. 5 is an enlarged view of the electric toothbrush shown in FIG. 4 at B;

FIG. 6 is an exploded view of the core of the powered toothbrush shown in FIG. 1;

fig. 7 is an enlarged view of the electric toothbrush shown in fig. 6 at C.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" 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," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, an electric toothbrush according to an embodiment is mainly used for cleaning teeth of a human body, and includes: the pressure sensing device comprises a pressure sensing mechanism 600, a rotating mechanism 400, a shell 100 and a main body support 200 arranged in the shell 100, wherein a driving device 300 is arranged on the main body support 200, the pressure sensing mechanism 600 comprises a first sensing piece 640 arranged at the end part of the driving device 300 and a second sensing piece 650 arranged opposite to the first sensing piece 640, the rotating mechanism 400 is arranged between the driving device 300 and the main body support 200, the driving device 300 can rotate relative to the rotating mechanism 400, the rotating mechanism 400 plays a role of a fulcrum on the driving device 300 so as to enable the driving device 300 to serve as a lever, one end of the lever falls, the other end of the lever tilts, a brush head is arranged on a driving shaft of the driving device 300, bristles of the brush head face to the second sensing piece 650, when the bristles of the brush head are stressed, and when a pressure value reaches a preset value, first response piece 640 with second response piece 650 is close to relatively, and pressure sensing mechanism is triggered, and drive arrangement 300 deceleration falls the frequency or stop work, ensures the tooth, the gum, the oral cavity can not receive the injury, and first response piece 640 and second response piece 650 are close to each other and the relative displacement that produces, make the appearance value of second response piece 650 change to reach pressure protection, pressure sensing mechanism 600 adopts first response piece 640 and second response piece 650 to control, and relative distance is bigger, and the forced induction value is more stable, and is accurate.

In this embodiment, the first sensing member 640 is an induction steel ring, and the second sensing member 650 is an induction coil, but in other embodiments, the first sensing member 640 and the second sensing member 650 may also be other elements, so as to trigger the pressure sensing mechanism to control the driving device 300 to reduce the speed and frequency, or even stop working, under the condition that the first sensing member 640 and the second sensing member 650 are close to each other, so as to ensure that the teeth, the gums, and the oral cavity are not damaged.

As shown in fig. 3, 6 and 7, the pressure sensing mechanism 600 further includes a driving device connecting end 610 and a spring 630, the driving device connecting end 610 is disposed on a side of the end of the driving device 300 away from the toothbrush head, the spring 630 is disposed between the second sensing element 650 and the driving device connecting end 610, in a normal state, the first sensing element 640 and the second sensing element 650 are kept away under the control of the spring 630, that is, the electric toothbrush is not used, and the first sensing element 640 and the second sensing element 650 are kept away. Preferably, the natural distance between the first sensing element 640 and the second sensing element 650 in the normal state is 0.8mm to 1.8mm, the brush head is pressed and deflected, so that the shortest distance between the first sensing element 640 and the second sensing element 650 is 0.2mm to 1mm, for example, the natural distance between the first sensing element 640 and the second sensing element 650 in the normal state is 0.8mm, the brush head is pressed and deflected, so that the shortest distance between the first sensing element 640 and the second sensing element 650 is 0.2mm, or the natural distance between the first sensing element 640 and the second sensing element 650 in the normal state is 1.8mm, and the brush head is pressed and deflected, so that the shortest distance between the first sensing element 640 and the second sensing element 650 is 1 mm. Of course, in other embodiments, the normal distance between the first sensing element 640 and the second sensing element 650 and the minimum distance after being pressed may be other values, so as to achieve that when the pressing force for brushing teeth is too large, the pressure sensing mechanism 600 is triggered, the driving device 300 is slowed down or stopped to reduce the frequency or stop working, so as to avoid damaging the teeth or the gums, and to protect the teeth and the gums. And the specific control of the driving device 300 for reducing the speed and reducing the frequency or stopping the operation can be set according to the shortest distance between the first sensing element 640 and the second sensing element 650 after being pressed, so as to achieve a better pressure control effect.

In this embodiment, two limiting pins 620 are disposed on the driving device connecting end 610, two limiting pins 620 are disposed on the two limiting pins 620, the outermost ends of the driving device connecting end 610 are disposed oppositely, each limiting pin 620 is disposed with one spring 630, the springs are in a natural pre-pressing state under a normal state, when the brush head is stressed by the rotating mechanism 400 as a fulcrum, the tail of the driving device 300 is lifted upwards, the springs 630 are also stressed and compressed, the springs 630 change the pressure to relative displacement, the first sensing element 640 and the second sensing element 650 approach each other to generate relative displacement, so that the volume change of the second sensing element 650 achieves pressure protection, the force during brushing teeth can be precisely controlled, when the pressure value reaches a certain value, the pressure sensing mechanism 600 is triggered, so as to reduce the speed and frequency of the motor, even stop working, ensure teeth and gums, the mouth is not injured and the spring 630 is pressure stable and has a longer life.

In this embodiment, the driving device connecting end 610 is provided with a slot for receiving the first sensing element 640, so that when the spring 630 is in a compressed state, the first sensing element 640 and the second sensing element 650 have a gap, thereby protecting the pressure sensing mechanism 600 and avoiding direct contact between the first sensing element 640 and the second sensing element 650.

Referring to fig. 4 and 5, the rotation mechanism 400 includes a rotation shaft 410 and a connection seat 420, the connection seat 420 is disposed on a housing of the driving device 300, the rotation shaft 410 penetrates through a shaft hole of the connection seat 420 and a mounting hole of the main body bracket 200, so that the driving device 300 can rotate relative to the rotation shaft 410, the rotation shaft 410 serves as a fulcrum, the driving device 300 serves as a lever, and after the front end of the driving device 300 is forced to return, the rear end of the driving device 300 rises, and the driving device moves in an opposite direction with the rotation shaft 410 as a center.

In this embodiment, a sealing ring 500 is disposed at the upper end of the main body bracket 200, and the sealing ring 500 is extruded between the inner cavity of the casing 100 and the outer wall of the main body bracket 200 to form a waterproof seal, which is beneficial to waterproof of the electric toothbrush during use and avoids the occurrence of faults.

In this embodiment, the sealing ring 500 includes a longitudinal seal 510 and a transverse seal 520 which are integrally formed, the longitudinal seal 510 is a longitudinally disposed annular waterproof protrusion, the annular waterproof protrusion forms a first layer of waterproof mechanism under the extrusion of a first horizontal end surface and a second horizontal end surface, the first horizontal end surface is located at the lower end of the annular waterproof protrusion, the second horizontal end surface is located at the upper end of the annular waterproof protrusion to form a positive pressure sealing waterproof seal, the waterproof sealing ring of the transverse seal 520 forms a second layer of waterproof mechanism under the extrusion of an inner end surface and an outer end surface, the inner end surface and the outer end surface are vertical end surfaces formed by side surfaces to form a side pressure sealing waterproof seal, so as to perform a double-layer waterproof treatment on the silica gel of the driving device 300, when the electric toothbrush is normally transported without high temperature influence, the waterproof is protected by the waterproof mechanism of the first layer, when the electric toothbrush is influenced by high temperature such as sea transportation, long-distance container freight and the like, the waterproof mechanism on the first layer is possibly protected to lose efficacy due to the shortened bracket, and the waterproof mechanism on the second layer is adopted for protection, so that the waterproof performance of the machine is ensured.

In this embodiment, the outer wall of the main body support 200 is provided with a limiting groove for accommodating the waterproof sealing ring, so that the assembly efficiency is improved, the stability of the transverse waterproof mechanism 123 after assembly can be ensured, the specified waterproof position cannot be left under vibration or high-temperature environment, and the waterproof effect is ensured.

In this embodiment, the electric toothbrush further includes a driving device fixing bracket 700, the driving device 300 is mounted on the main body bracket 200 through the driving device fixing bracket 700, the driving device 300 is mounted on the main body bracket 200 in a clearance fit, a margin for displacement of the driving device 300 is left, in the margin space, the driving device 300 can rotate relative to the rotating shaft 410, the rotating shaft 410 serves as a fulcrum, the driving device 300 serves as a lever, and after the front end of the driving device 300 is forced to return, the rear end of the driving device 300 rises and moves in the opposite direction centering on the rotating shaft 410.

In this embodiment, the bracket at the upper end of the limit pin 620 is provided with a hole for the upper end of the limit pin 620 to pass through, so that the limit pin 620 at the upper end does not influence the relative approach of the first sensing part 640 and the second sensing part 650, and the change of the capacity of the second sensing part 650 is protected by pressure.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an electric toothbrush, its characterized in that includes the shell and locates the inside main part support of shell, be equipped with drive arrangement on the main part support, electric toothbrush still includes pressure sensing mechanism and slewing mechanism, pressure sensing mechanism is including locating the first response piece of drive arrangement tip and with the relative second response piece that sets up of first response piece, slewing mechanism locates drive arrangement with between the main part support, just drive arrangement can be relative slewing mechanism rotates, be equipped with the brush head in drive arrangement's the drive shaft, just the brush hair orientation of brush head the second response piece works as the brush hair side atress of brush head, first response piece with the second response piece is close to relatively, and drive arrangement deceleration falls the frequency or stop work.

2. The powered toothbrush as defined in claim 1, wherein the pressure sensing mechanism further comprises a drive device connection end and a spring, the drive device connection end being disposed on a side of the drive device end remote from the head, the spring being disposed between the second sensing element and the drive device connection end.

3. The electric toothbrush according to claim 2, wherein two of the limit pins are provided at the driving unit connecting end, and the two of the limit pins are oppositely provided at the outermost ends of the driving unit connecting end, and each of the limit pins is provided with one of the springs.

4. The powered toothbrush as defined in claim 2, wherein the drive mechanism connecting end has a slot for receiving the first sensing element such that the spring is compressed with a gap between the first sensing element and the second sensing element.

5. The electric toothbrush according to claim 1, wherein the rotating mechanism comprises a rotating shaft and a connecting seat, the connecting seat is disposed on the housing of the driving device, and the rotating shaft penetrates through a shaft hole of the connecting seat and a mounting hole of the main body bracket, so that the driving device can rotate relative to the rotating shaft.

6. The powered toothbrush as defined in claim 1, wherein the body support has a sealing ring at an upper end thereof, and the sealing ring is pressed against an outer wall of the body support at the inner cavity of the housing to form a watertight seal.

7. The electric toothbrush according to claim 6, wherein the sealing ring comprises a longitudinal seal and a transverse seal which are integrally formed, the longitudinal seal is a longitudinally arranged annular waterproof protrusion, the annular waterproof protrusion forms a first layer of waterproof mechanism under the extrusion of a first horizontal end surface and a second horizontal end surface, the first horizontal end surface is located at the lower end of the annular waterproof protrusion, the second horizontal end surface is located at the upper end of the annular waterproof protrusion, the transverse seal waterproof sealing ring forms a second layer of waterproof mechanism under the extrusion of an inner end surface and an outer end surface, and the inner end surface and the outer end surface are vertical end surfaces formed by side surfaces.

8. The electric toothbrush according to claim 7, wherein the outer wall of the body bracket is provided with a limiting groove for accommodating the waterproof sealing ring.

9. The electric toothbrush of claim 1, further comprising a drive unit fixing bracket, the drive unit being mounted to the body bracket by the drive unit fixing bracket.

10. The electric toothbrush according to claim 3, wherein the holder at the upper end of the stopper pin is formed with a hole through which the upper end of the stopper pin passes.