CN213552547U

CN213552547U - Electric toothbrush capable of automatically changing output of driving device under pressure

Info

Publication number: CN213552547U
Application number: CN202020912616.7U
Authority: CN
Inventors: 陈金祥
Original assignee: Dongguan Yinfan Life Technology Co ltd
Current assignee: Dongguan Yinfan Life Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-06-29
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses an electric toothbrush of automatic drive arrangement output that changes of pressurized, it includes: the brush holder, install the brush head in the brush holder upper end with dismantled and assembled mode, install in the brush holder and be used for driving the drive arrangement of brush head work and install in the brush holder and be used for controlling drive arrangement's circuit board with wobbling mode, be provided with the contact site that is used for triggering to change the change drive arrangement rotational speed on the circuit board, the elastic switch who contacts with the contact site is installed to drive arrangement's afterbody, elastic switch is including the installation department that is fixed in the drive arrangement afterbody, the shaping is in installation department both sides and support the switch portion that presses on the circuit board in shell fragment portion and shaping have the clearance between shell fragment portion side and the contact site, shell fragment portion is higher than switch portion and makes and produce the clearance between switch portion and the contact site, and switch portion and contact portion draw close together after.

Description

Electric toothbrush capable of automatically changing output of driving device under pressure

The technical field is as follows:

the utility model relates to the field of electric toothbrushes, in particular to an electric toothbrush with an output of a driving device automatically changed under pressure.

Background art:

the electric toothbrush mainly makes the brush head generate high-frequency vibration through the quick rotation or vibration of the electric motor, instantly decomposes the toothpaste into fine foam, and deeply cleans teeth gaps. When the user uses the electric toothbrush, the brush head needs to be attached to the surface of teeth, when the user exerts too much force, the excessive pressure and the high-frequency sound wave vibration friction of the brush bristles easily cause tooth damage, and the problems of gingival bleeding, wedge-shaped tooth abrasion and the like which are harmful to health are caused. Especially, in the case of children, it is difficult to grasp the degree of the pressing force between the brush head and the surfaces of the teeth when using the electric toothbrush, and the teeth of children are weak and easily damaged when they develop for a long period of time. Thus, there is a need for a toothbrush that automatically changes or reduces the rotational speed and frequency of vibration to protect the teeth and gums from damage when the head is subjected to excessive pressure.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide an electric toothbrush with the output of a driving device automatically changed by pressure.

In order to solve the technical problem, the utility model discloses a following technical scheme: the electric toothbrush capable of automatically changing the output of the driving device under pressure comprises: brush holder, with dismantled and assembled mode install in brush head of brush holder upper end, in order can swinging the mode install in the brush holder and be used for the drive brush head work drive arrangement and install in the brush holder and be used for control drive arrangement's circuit board, be provided with on the circuit board and be used for triggering the change the contact site of drive arrangement rotational speed, drive arrangement's afterbody install with the elastic switch of contact site contact, elastic switch including be fixed in the installation department of drive arrangement afterbody, shaping in the installation department both sides support press in the elastic sheet portion and the shaping on the circuit board in elastic sheet portion side and with there is the switch portion in clearance between the contact site, elastic sheet portion is long in switch portion, and elastic switch receives behind the extrusion force switch portion with the contact site draws close the contact.

Further, among the above-mentioned technical scheme, elastic switch is for being criss-cross sheetmetal, its including two slope shaping in on the installation department and symmetric distribution in the installation department both sides the ammunition piece portion and symmetric shaping in the installation department in addition both sides with the contact site interval is relative two the switch portion, the ammunition piece portion receives outside elasticity opens after the drive arrangement extrusion, makes the switch portion with the contact site contact is in order to change the drive arrangement rotational speed.

Further, among the above-mentioned technical scheme, elastic switch is for being the electrically conductive silica gel spare of loudspeaker cover shape, its including the shaping in installation department edge and the shell fragment portion that is loudspeaker shape and shaping in installation department middle part and with the contact site interval is relative switch portion, the shell fragment portion receives drive arrangement extrudees back elastic shrinkage, makes switch portion with the contact site contact is in order to change the drive arrangement rotational speed.

Further, in the above technical solution, the tail end of the driving device is provided with an installation seat for installing the elastic switch, and the elastic switch is fixed on the installation seat through a screw or a welding or gluing manner.

Further, in the above technical solution, the method is characterized in that: the brush handle is internally provided with a bracket for mounting the driving device, the bracket comprises a first bracket and a second bracket which are hinged with each other, and the driving device is mounted in the first bracket and can drive the first bracket to swing relative to the second bracket.

Furthermore, in the above technical solution, the circuit board is mounted on one side of the support, a switch button corresponding to the circuit board and used for controlling the driving device to start and close is disposed on the side wall of the brush holder, and a battery used for providing electric energy for the driving device is mounted on the second support.

Furthermore, in the above technical solution, the brush holder tail is further provided with a brush holder tail cover for placing the brush holder and for charging the battery.

Further, in the above technical solution, a joint of the first bracket and the second bracket is hinged together by two symmetrical rotating shafts.

Further, in the above technical solution, the first bracket is in a sleeve shape, and the upper end of the driving device is installed in the inner cavity of the first bracket; the second support comprises an upper cover shell and a lower cover shell which are symmetrical, the lower end of the driving device is positioned in the upper cover shell and can swing in the upper cover shell, and the battery is positioned in the lower cover shell.

Furthermore, in the above technical scheme, the upper end of the brush handle is provided with a transmission component which extends into the brush head and is used for driving the brush head to vibrate, the lower end of the transmission component is connected with the driving device, and the upper end of the transmission component extends into the inner cavity of the brush head.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses but with drive arrangement adoption wobbling mode articulated install in the brush holder, and set up the contact site that can trigger the change drive arrangement rotational speed on the circuit board, the afterbody setting of drive arrangement simultaneously be used for with the circuit board on the elastic switch of contact site contact, make drive arrangement can produce the swing when the brush head receives too big extrusion force, contact the contact site on elastic switch and the circuit board, trigger the rotational speed frequency who changes drive arrangement, do not receive the damage with protection tooth and gum, and the simple structure of shell fragment switch, the space occupies for a short time, do not additionally increase the size of brush holder.

Description of the drawings:

fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a perspective view of a spring switch according to an embodiment of the present invention;

fig. 5 is a sectional view of a second embodiment of the present invention.

Description of reference numerals:

1 brush holder 11 switch button 12 battery

13 brush handle tail cover 2 brush head 3 driving device

31 mounting seat 4 circuit board 41 contact part

5 elastic switch 51 mounting part 52 spring sheet part

53 switch portion 6 elastic component 7 support that resets

71 first support 72 second support 721 upper housing

722 lower housing 73 shaft 8 transmission assembly

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Referring to fig. 1 to 5, there is provided an electric toothbrush which automatically changes an output of a driving means by being pressed, comprising: a brush holder 1, a brush head 2 detachably mounted at the upper end of the brush holder 1, a driving device 3 swingably mounted in the brush holder 1 for driving the brush head 2 to operate, and a circuit board 4 mounted in the brush holder 1 for controlling the driving device 3, the circuit board 4 is provided with a contact portion 41 for triggering a change in the rotational speed of the drive device 3, the elastic switch 5 contacting with the contact part 41 is installed at the tail part of the driving device 3, the elastic switch 5 comprises an installation part 51 fixed at the tail part of the driving device 3, an elastic sheet part 52 formed at two sides of the installation part 51 and abutting against the circuit board 4, and a switch part 53 formed at the side of the elastic sheet part 52 and having a gap with the contact part 41, wherein the elastic sheet part 52 is longer than the switch part 53, and the switch portion 53 is brought into close contact with the contact portion 41 after the elastic switch 5 is subjected to the pressing force. The driving device 3 is a motor. After the driving device 3 is pressed and swings, the elastic switch 5 is driven to the circuit board 4 to be closed, the switch part 53 is contacted with the contact part 41 on the circuit board 4, the circuit board 4 sends an instruction to enable the driving device 3 to change the rotating speed and the frequency, the vibration frequency of the brush head 2 is further reduced, and the high-frequency vibration of the brush head 2 is prevented from damaging teeth and gum.

Wherein, drive arrangement 3 produces the swing and makes elastic switch 5 and the required pressure of circuit board 4 contact, uses according to the crowd of difference, adopts the elastic switch 5 of different elasticity to decide, often divide into: childhood, adult and elderly. The elastic switch 5 is a contact switch, that is, after the switch part 53 contacts the contact part 41 of the circuit board 4, the circuit board 4 is triggered to trigger an instruction so that the driving device 3 changes the output rotating speed and frequency, thereby reducing the vibration intensity of the brush head 2 and playing a role in protecting teeth and gums.

The tail end of the driving device 3 is provided with a mounting seat 31 for mounting the elastic switch 5, and the elastic switch 5 is fixed on the mounting seat 31 through screws or welding or gluing.

The brush holder 1 is internally provided with a bracket 7 for mounting the driving device 3, the bracket 7 comprises a first bracket 71 and a second bracket 72 which are hinged with each other, and the driving device 3 is mounted in the first bracket 71 and can drive the first bracket 71 to swing relative to the second bracket 72.

A reset elastic part 6 for helping the drive device 3 to swing back and reset is further arranged between the tail part of the drive device 3 and the bracket 2. The elastic restoring element 6 may be an elastic sheet, a spring, elastic silica gel, or the like, and may be disposed between the inner wall of the first support 71 and the outer wall of the mounting seat 31, or between the bottom of the mounting seat 31 and the second support 72, or between the driving device 3 and the second support 72 or the circuit board 4.

The circuit board 4 is installed on one side of the support 7, a switch button 11 corresponding to the circuit board 4 and used for controlling the driving device 3 to be started and closed is arranged on the side wall of the brush holder 1, and a battery 12 used for providing electric energy for the driving device 3 is installed on the second support 72. An upper clamping groove for installing the upper end of the fixed circuit board 4 is formed in the first support 71, and a lower clamping groove for installing the lower end of the classical circuit board 4 is formed in the second support 72.

The tail part of the brush holder 1 is also provided with a brush holder tail cover 13 for placing the brush holder 1 and charging the battery 12.

The joint of the first bracket 71 and the second bracket 72 is hinged together by two symmetrical rotating shafts 73.

The first bracket 71 is in a sleeve shape, and the upper end of the driving device 3 is arranged in the inner cavity of the first bracket 71; the second support 72 includes an upper casing 721 and a lower casing 722 which are opposite to each other, the lower end of the driving device 3 is located in the upper casing 721 and can swing in the upper casing 721, and the battery 12 is located in the lower casing 722.

The upper end of the brush handle 1 is provided with a transmission component 8 which extends into the brush head 2 and is used for driving the brush head 2 to vibrate, the lower end of the transmission component 8 is connected with the driving device 3, and the upper end of the transmission component 8 extends into the inner cavity of the brush head 2.

As shown in fig. 4, in the first embodiment, the elastic switch 5 is a cross-shaped metal sheet, which includes two sheets of metal sheets formed in an inclined manner on the mounting portion 51 and symmetrically distributed on two sides of the mounting portion 51, the elastic sheet portion 52 and the elastic sheet portion are formed on two sides of the mounting portion 51 opposite to the contact portion 41 at intervals, the elastic sheet portion 52 is pressed by the driving device 3 and then elastically opened outwards, so that the switch portion 53 contacts with the contact portion 41 to change the rotating speed of the driving device 3.

As shown in fig. 5, in the second embodiment, the elastic switch 5 is a conductive silicone member in a horn shape, and includes an elastic piece portion 52 formed at the edge of the mounting portion 51 and in a horn shape and a switch portion 53 formed at the middle of the mounting portion 51 and opposite to the contact portion 41 at an interval, the elastic piece portion 52 is elastically contracted after being pressed by the driving device 3, so that the switch portion 53 contacts with the contact portion 41 to change the rotation speed of the driving device 3.

To sum up, in the utility model, when in use, the switch button 11 is pressed, the driving device 3 is started and drives the brush head 2 to generate high-frequency vibration through the transmission component 8, under normal pressure, the brush head 2 cleans teeth, when the user presses the brush head 2 to the too large extrusion force of the tooth contact surface, the brush head 2 pushes the driving device 3 to swing around the shaft 73 through the transmission component 8, thereby squeezing the elastic switch 5, the elastic sheet part 52 is deformed, and after the switch part 53 contacts with the contact part 41 on the circuit board 4, the driving device 3 is triggered to change the rotating speed and the frequency, thereby the vibration of the brush head 2 is reduced, the teeth and the gum are prevented from being damaged, after the user reduces the extrusion force of the brush head 2, the reset thrust generated by the elastic sheet part 52 can push the driving device 3 to swing reversely, the switch part 53 is separated from the contact part 41, at this moment, the driving device 3 recovers to the original rotating speed and frequency, the return elastic member 6 disposed between the driving device 3 and the second bracket 72 can help the driving device 3 to return to its original position more quickly, and at the same time, the return pressure of the elastic piece portion 52 can be reduced, and the service life of the elastic switch 5 can be prolonged.

In the above scheme, the rotation speed and frequency of the driving device 3 can be automatically and rapidly changed when the brush head 2 is subjected to excessive extrusion force through the elastic sheet switch 5 with a simple structure, so that teeth and gum are protected from being damaged, the elastic sheet switch 5 is simple in structure, the occupied space is small, and the size of the brush handle 1 is not additionally increased.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. An electric toothbrush which automatically changes the output of a drive means under pressure, comprising: brush holder (1), install in brush head (2) of brush holder (1) upper end with dismantled and assembled mode, install in but wobbling mode in brush holder (1) and be used for driving drive brush head (2) work drive arrangement (3) and install in brush holder (1) and be used for controlling drive arrangement (3) circuit board (4), its characterized in that, be provided with on circuit board (4) and be used for triggering change drive arrangement (3) rotational speed's contact site (41), drive arrangement's (3) afterbody install with elastic switch (5) of contact site (41) contact, elastic switch (5) including be fixed in installation department (51) of drive arrangement (3) afterbody, the shaping in installation department (51) both sides and support press in spring portion (52) on circuit board (4) and the shaping in spring portion (52) side and with there is the switch portion (53) in clearance between contact site (41), the elastic piece part (52) is higher than the switch part (53) to enable a gap to be generated between the switch part (53) and the contact part (41), and the switch part (53) and the contact part (41) are close to and contacted after the elastic switch (5) is subjected to extrusion force.

2. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 1, wherein: elastic switch (5) is for being criss-cross sheetmetal, its including two slope shaping in installation department (51) go up and symmetric distribution in installation department (51) both sides bullet piece portion (52) and symmetric shaping in installation department (51) other both sides with contact site (41) interval two relative switch portion (53), bullet piece portion (52) receive drive arrangement (3) extrusion is opened to outer elasticity, makes switch portion (53) with contact site (41) contact is in order to change drive arrangement (3) rotational speed.

3. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 1, wherein: elastic switch (5) is for being the electrically conductive silica gel spare of loudspeaker cover shape, its including the shaping in installation department (51) edge and be the shell fragment portion (52) and the shaping of loudspeaker shape in installation department (51) middle part and with contact site (41) interval is relative switch portion (53), shell fragment portion (52) receive drive arrangement (3) extrusion back elastic contraction makes switch portion (53) with contact site (41) contact is in order to change drive arrangement (3) rotational speed.

4. An electric toothbrush for automatically varying the output of a drive means under pressure as claimed in claim 2 or 3, wherein: the tail end of the driving device (3) is provided with a mounting seat (31) for mounting the elastic switch (5), and the elastic switch (5) is fixed on the mounting seat (31) in a screw or welding or gluing mode.

5. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 4, wherein: the toothbrush handle is characterized in that a support (7) used for mounting the driving device (3) is arranged in the toothbrush handle (1), the support (7) comprises a first support (71) and a second support (72) which are hinged to each other, and the driving device (3) is mounted in the first support (71) and can drive the first support (71) to swing relative to the second support (72).

6. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 5, wherein: the circuit board (4) is installed on one side of the support (7), a switch button (11) which corresponds to the circuit board (4) and is used for controlling the starting and closing of the driving device (3) is arranged on the side wall of the brush holder (1), and a battery (12) which is used for providing electric energy for the driving device (3) is installed on the second support (72).

7. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 6, wherein: the tail of the brush holder (1) is also provided with a brush holder tail cover (13) for placing the brush holder (1) and charging the battery (12).

8. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 7, wherein: the joint of the first bracket (71) and the second bracket (72) is hinged together through two symmetrical rotating shafts (73).

9. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 8, wherein: the first support (71) is in a sleeve shape, and the upper end of the driving device (3) is arranged in the inner cavity of the first support (71); the second support (72) comprises an upper cover shell (721) and a lower cover shell (722) which are symmetrical, the lower end of the driving device (3) is positioned in the upper cover shell (721) and can swing in the upper cover shell (721), and the battery (12) is positioned in the lower cover shell (722).

10. An electric toothbrush for automatically varying the output of a drive means under pressure as set forth in claim 9, wherein: brush holder (1) upper end is provided with and stretches into in the brush head (2) and be used for driving drive assembly (8) of brush head (2) vibrations, drive assembly (8) lower extreme with drive arrangement (3) are connected, drive assembly (8) upper end stretches into in the brush head (2) inner chamber.