CN213525612U

CN213525612U - Buckling structure of electric toothbrush head

Info

Publication number: CN213525612U
Application number: CN202021478876.4U
Authority: CN
Inventors: 杨坤
Original assignee: Dongguan Yinfan Life Technology Co ltd
Current assignee: Dongguan Yinfan Life Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-06-25
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a lock structure of electric toothbrush brush head, it includes: the brush holder, set up in the linking arm of brush holder upper end and the brush head on the linking arm is installed to the mode that can dismantle, be provided with on the linking arm outer wall be used for with the fixed snap ring of brush head block and be located the snap ring side and be used for the locating piece of location brush head, be provided with in the inner chamber of brush head with snap ring cooperation chucking with linking arm fixed connection's draw-in groove and be located the draw-in groove side and with the constant head tank of locating piece cooperation location, snap ring and locating piece are located. The utility model discloses in be used for installing the snap ring and the locating piece of location brush head through setting up on the outer wall of linking arm to be provided with in the brush head with draw-in groove and constant head tank that snap ring and locating piece match, make on installing the linking arm that the brush head can be quick, realize the quick installation of brush head, simultaneously, the steadiness of this kind of structure is good, also more wear-resisting, life is longer, the lock is felt bright advantage.

Description

Buckling structure of electric toothbrush head

The technical field is as follows:

the utility model relates to the field of electric toothbrushes, in particular to a buckling structure of a brush head of an electric toothbrush.

Background art:

the electric toothbrush is one kind of toothbrush, and the brush head produces high frequency vibration through the fast rotation or vibration of the motor core to decompose toothpaste into fine foam and clean teeth slit, and the vibration of the brush hair can promote the blood circulation in the mouth and massage gum tissue.

Along with the improvement of living standard of people, more and more electric toothbrush articles are applied to daily life of people, and because the electric toothbrush is convenient to use, the cleaning effect is very ideal, and the electric toothbrush is popular with consumers. The brush head is abraded, bacteria are accumulated and the cleaning effect is poor after the brush head is used for a long time, so that the brush head needs to be replaced periodically, the brush head and the handle need to be detachable, and the problems of complex structure and inconvenient installation and removal commonly exist between the existing brush head and the handle.

Because the brush head needs periodic replacement, the requirement on the plugging and unplugging of the brush head is higher, if the brush head is assembled to be too tight, the brush head is not easy to replace, the electric toothbrush is easy to damage by too large force in the replacement process, and when the brush head is assembled to be too loose, the brush head and a driving shaft and the like are collided to cause larger noise, so that the user experience is influenced.

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 a buckling structure of a brush head of an electric toothbrush.

In order to solve the technical problem, the utility model discloses a following technical scheme: this lock structure of electric toothbrush brush head includes: brush holder, set up in linking arm and the mode that can dismantle of brush holder upper end install in brush head on the linking arm, be provided with on the linking arm outer wall be used for with the fixed snap ring of brush head block and be located the snap ring side is used for the location the locating piece of brush head, be provided with in the inner chamber of brush head with snap ring cooperation chucking with linking arm fixed connection's draw-in groove and being located the draw-in groove side and with the constant head tank of locating piece cooperation location, the snap ring with the locating piece is located be close to on the linking arm brush holder one end.

Furthermore, in the above technical solution, the positioning block is strip-shaped and passes through one side of the snap ring; the positioning groove is also strip-shaped and penetrates through one side of the clamping groove.

Furthermore, in the above technical solution, the brush head includes a brush head housing, bristles disposed at one end of the brush head housing, and an inner bushing formed at the other end of the brush head housing and located in the inner cavity, the connecting arm extends into the inner bushing and is engaged with the inner bushing, the engaging groove is formed on an inner wall of the inner bushing, and the positioning groove is formed on a side wall of the inner bushing to form a notch in the inner bushing.

Furthermore, in the above technical solution, the connecting arm includes a mounting cavity for mounting the driving device, a limiting block formed at the upper end of the mounting cavity and used for positioning the driving device, a first positioning protruding ring formed at the lower end of the snap ring and contacting with the upper end surface of the brush handle, and a second positioning protruding ring formed at the bottom end of the connecting arm and extending into the brush handle and connected with the brush handle, wherein the positioning block is connected with the first positioning protruding ring.

Furthermore, among the above-mentioned technical scheme, the brush holder upper end is provided with and is used for the installation the linking arm is sealed brush holder upper shed's mount pad, the mount pad shaping have with the connection cavity of second location bulge loop cooperation joint, mount pad upper end shaping have with the sealed bulge loop that the brush holder inner wall supported the pressure.

Furthermore, in the above technical solution, the mounting seat is made of an elastic silica gel material.

Furthermore, in the above technical solution, the driving device includes a motor mounted on the upper end of the mounting cavity in an interference fit, dispensing or threaded fit manner, a striking block mounted on the upper end of the motor and extending out of the mounting cavity, and a steel cover covering the striking block and generating vibration of the brush head with the striking block, wherein the steel cover is mounted on the motor in an interference fit, dispensing or threaded fit manner.

Furthermore, in the above technical solution, the brush holder includes a brush holder housing, a support frame mounted on the brush holder housing, a circuit board mounted on the support frame and used for controlling the operation of the driving device, a battery mounted on the support frame and used for providing electric energy for the driving device, a button disposed on the brush holder housing and used for triggering the circuit board, and a charging module mounted at the lower end of the brush holder housing and used for charging the battery, wherein the lower end of the driving device is provided with a wire harness passing through the mounting cavity and connected to the circuit board.

Furthermore, in the above technical solution, the charging module includes an insulating base installed at the lower end of the brush holder housing, a conductive terminal slidably disposed inside the insulating base, an electric spring disposed between the conductive terminal and the support frame and electrically connected to the circuit board, and a waterproof sealing ring disposed between the insulating base and the brush holder housing, a mounting hole for mounting the electric spring is disposed at the lower end of the support frame, and the support frame is made of insulating material.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect:

1. the utility model discloses in be used for installing the snap ring and the locating piece of location brush head through setting up on the outer wall of linking arm to be provided with in the brush head with draw-in groove and constant head tank that snap ring and locating piece match, make on installing the linking arm that the brush head can be quick, realize the quick installation of brush head, simultaneously, the steadiness of this kind of structure is good, also more wear-resisting, life is longer, the lock is felt bright advantage.

2. The utility model discloses in carry out prepositioning through the installation of the brush head of locating piece and constant head tank, not only saved numerous and diverse step of looking for the lock joint position during the installation, can also make the brush head of installing can not relative linking arm rotate when using by the cooperation of locating piece and constant head tank simultaneously, brush head rotates the influence to use by oneself when avoiding using.

Description of the drawings:

fig. 1 is an exploded view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is an exploded view of the present invention;

fig. 5 is a perspective view of the connecting arm of the present invention;

fig. 6 is a perspective view of the mounting base of the present invention;

fig. 7 is an exploded view of the present invention.

Description of reference numerals:

1 brush holder 11 brush holder shell 12 support

121 mounting hole 13 circuit board 14 battery

15 key 16 charging module 161 insulating base

162 conductive terminal 163 electric spring 164 waterproof sealing ring

2 connecting arm 21 snap ring 22 locating block

23 mounting cavity 24 limiting block 25 first positioning convex ring

26 inner cavity of brush head 30 of second positioning convex ring 3

31 slot 32 locating slot 33 brush head shell

34 bristle 35 inner bushing 4 driving device

41 wiring harness 5 mounting seat 51 connecting cavity

52 sealing convex ring

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 7, a snap structure of a head of an electric toothbrush is provided, which includes: brush holder 1, set up in linking arm 2 of 1 upper end of brush holder and the mode that can dismantle install in brush head 3 on linking arm 2, be provided with on 2 outer walls of linking arm be used for with 3 fixed snap rings 21 of block of brush head and being located snap ring 21 side is used for the location brush head 3's locating piece 22, be provided with in the inner chamber 30 of brush head 3 with snap ring 21 cooperation chucking with linking arm 2 fixed connection's draw-in groove 31 and being located draw-in groove 31 side and with locating piece 22 cooperation location's constant head tank 32, snap ring 21 with locating piece 22 is located be close to on 2 linking arm 1 one end of brush holder. The mounting position of the brush head 3 is positioned by matching the positioning block 22 and the positioning groove 32, the brush head 3 is fixed on the connecting arm 2 through the matching clamping of the clamping ring 21 and the clamping groove 31, the connecting stability is good, the wear resistance is high, the service life is long, and the buckling handle has the advantages of being bright in hand feeling.

The positioning block 22 is strip-shaped and penetrates through one side of the clamping ring 21; the positioning groove 32 is also in a strip shape and penetrates one side of the clamping groove 31. The strip-shaped positioning block 22 is arranged on the outer wall of the cylindrical connecting arm 2, so that the brush head 3 can be quickly positioned, the user can be obviously sensed after the brush head is positioned, and the operation hand feeling of the user is improved.

The brush head 3 comprises a brush head shell 33, bristles 34 arranged at one end of the brush head shell 33 and an inner bushing 35 formed at the other end of the brush head shell 33 and located in the inner cavity 30, the connecting arm 2 extends into the inner bushing 35 and is clamped with the inner bushing 35, the clamping groove 31 is formed on the inner wall of the inner bushing 35, and the positioning groove 32 is formed on the side wall of the inner bushing 35 to enable the inner bushing 35 to form a notch.

The connecting arm 2 comprises a mounting cavity 23 for mounting the driving device 4, a limiting block 24 formed at the upper end of the mounting cavity 23 and used for positioning the driving device 4, a first positioning convex ring 25 formed at the lower end of the snap ring 21 and contacted with the upper end surface of the brush holder 1, and a second positioning convex ring 26 formed at the bottom end of the connecting arm 2 and extending into the brush holder 1 and connected with the brush holder 1, wherein the positioning block 22 is connected with the first positioning convex ring 25.

The utility model discloses a brush holder, including brush holder 1, brush holder 1 upper end is provided with and is used for the installation connecting arm 2 is sealed 1 upper shed mount pad 5 of brush holder, the 5 shaping of mount pad have with the connection cavity 51 of second location bulge loop 26 cooperation joint, the 5 upper end shaping of mount pad have with the sealed bulge loop 52 that the inner wall of brush holder 1 supported the pressure.

The mounting seat 5 is made of elastic silica gel materials. This mount pad 5 not only can fix linking arm 2, can also play sealed waterproof effect, and rivers get into damage circuit in the brush holder 1 from linking arm 2 and the 1 junction of brush holder when preventing to use.

Drive arrangement 4 including through interference fit or some glue or screw-thread fit's mode install in motor on the installation cavity 23, install in motor upper end and stretching out the striking block and the cover of installation cavity 23 are located on the striking block and with the striking block produces and makes the steel casing of 3 vibrations of brush head, the steel casing through interference fit or some glue or screw-thread fit's mode install in on the motor. The motor is a hollow cup vibration motor.

The toothbrush holder 1 comprises a toothbrush holder shell 11, a support frame 12 mounted on the toothbrush holder shell 11, a circuit board 13 mounted on the support frame 12 and used for controlling the operation of the driving device 4, a battery 14 mounted on the support frame 12 and used for providing electric energy for the driving device 4, a key 15 arranged on the toothbrush holder shell 11 and used for triggering the circuit board 13, and a charging module 16 mounted at the lower end of the toothbrush holder shell 11 and used for charging the battery 14, wherein the lower end of the driving device 4 is provided with a wiring harness 41 which penetrates through the mounting cavity 23 and is connected with the circuit board 14.

The charging module 16 comprises an insulating base 161 installed at the lower end of the brush holder shell 11, a conductive terminal 162 arranged at the inner side of the insulating base 161 and capable of sliding, an electric spring 163 arranged between the conductive terminal 162 and the support frame 12 and electrically connected with the circuit board 13, and a waterproof sealing ring 164 arranged between the insulating base 161 and the brush holder shell 11, wherein the lower end of the support frame 12 is provided with a mounting hole 121 for mounting the electric spring 163, and the support frame 12 is made of an insulating material.

To sum up, the utility model discloses during the use, through establishing linking arm 2 with 3 covers of brush head, make drive arrangement 4 stretch into the inner chamber 30 of brush head 3, the rotatory brush head 3 of rethread makes the constant head tank 32 in the brush head 3 rotate with the corresponding coincidence of locating piece 22 on the linking arm 2, then will brush 3 and go up down to press down, make snap ring 21 on the linking arm 2 and brush 31 block in the head 3 fixed to accomplish the quick installation of brush head 3. When the brush head 3 needs to be replaced, the brush head 3 only needs to be directly pulled out upwards, and then a new brush head 3 is installed according to the mode.

After adopting above-mentioned scheme, through the cooperation of snap ring 21 and draw-in groove 31, can be fast with brush head 3 install on linking arm 2, and through locating piece 22 and constant head tank 32 brush head 3 installation carry out prepositioning, so that do not need accurate when the installation to look for the lock joint position, simultaneously by locating piece 22 and constant head tank 32's cooperation can also make the brush head 3 of installing can not relative linking arm 2 rotate when using, brush head 3 self-rotation influences the use when preventing to use, and this kind of connection structure steadiness is good, and is more wear-resisting, the life-span is longer, the lock feels bright advantage.

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. A snap-fit structure for a head of an electric toothbrush, comprising: brush holder (1), set up in linking arm (2) of brush holder (1) upper end and the mode that can dismantle install in brush head (3) on linking arm (2), its characterized in that, be provided with on linking arm (2) outer wall be used for with snap ring (21) that brush head (3) block is fixed and be located snap ring (21) side is used for the location locating piece (22) of brush head (3), be provided with in inner chamber (30) of brush head (3) with snap ring (21) cooperation chucking in order with linking arm (2) fixed connection's draw-in groove (31) and be located draw-in groove (31) side and with constant head tank (32) of locating piece (22) cooperation location, snap ring (21) with locating piece (22) are located be close to on linking arm (2) brush holder (1) one end.

2. The snap structure of an electric toothbrush head according to claim 1, wherein: the positioning block (22) is strip-shaped and penetrates through one side of the clamping ring (21); the positioning groove (32) is also in a strip shape and penetrates through one side of the clamping groove (31).

3. The snap structure of an electric toothbrush head according to claim 1, wherein: the toothbrush head (3) comprises a toothbrush head shell (33), bristles (34) arranged at one end of the toothbrush head shell (33) and an inner lining (35) formed at the other end of the toothbrush head shell (33) and located in the inner cavity (30), the connecting arm (2) extends into the inner lining (35) and is clamped with the inner lining (35), the clamping groove (31) is formed in the inner wall of the inner lining (35), and the positioning groove (32) is formed in the side wall of the inner lining (35) to enable the inner lining (35) to form a notch.

4. The snap structure of an electric toothbrush head according to any one of claims 1 to 3, wherein: linking arm (2) including be used for installing installation cavity (23), the shaping of drive arrangement (4) in installation cavity (23) upper end is used for the location stopper (24), the shaping of drive arrangement (4) in snap ring (21) lower extreme and with first location bulge loop (25) and the shaping of brush holder (1) up end contact in linking arm (2) bottom is stretched into in brush holder (1) with second location bulge loop (26) that brush holder (1) is connected, locating piece (22) with first location bulge loop (25) are connected.

5. The snap structure of an electric toothbrush head according to claim 4, wherein: brush holder (1) upper end is provided with and is used for the installation linking arm (2) and sealed brush holder (1) upper shed mount pad (5), mount pad (5) shaping have with connection cavity (51) of second location bulge loop (26) cooperation joint, mount pad (5) upper end shaping have with brush holder (1) inner wall supports sealed bulge loop (52) of pressing.

6. The snap structure of an electric toothbrush head according to claim 5, wherein: the mounting seat (5) is made of elastic silica gel materials.

7. The snap structure of an electric toothbrush head according to claim 4, wherein: drive arrangement (4) including through interference fit or some glue or screw-thread fit's mode install in install the motor of cavity (23) upper end, install in the motor upper end and stretch out the striking piece and the cover of installation cavity (23) are located on the striking piece and with the striking piece produces and makes the steel casing of brush head (3) vibrations, the steel casing through interference fit or some glue or screw-thread fit's mode install in on the motor.

8. The snap structure of an electric toothbrush head according to any one of claims 5 to 7, wherein: brush holder (1) including brush holder casing (11), install in support frame (12) of brush holder casing (11), install in be used for controlling on support frame (12) circuit board (13) of drive arrangement (4) work, install in be used for on support frame (12) and for battery (14) that drive arrangement (4) provided the electric energy, set up in be used for triggering on brush holder casing (11) button (15) of circuit board (13) and install in brush holder casing (11) lower extreme is used for battery (14) charging's module (16), drive arrangement (4) lower extreme is provided with and passes installation cavity (23) with pencil (41) that the circuit board is connected.

9. The snap structure of an electric toothbrush head according to claim 8, wherein: charging module (16) including install in insulator foot (161) of brush holder casing (11) lower extreme, set up in insulator foot (161) inboard and slidable conductive terminal (162), set up in conductive terminal (162) with between support frame (12) and with circuit board (13) electric connection's electric spring (163), set up in insulator foot (161) with waterproof sealing washer (164) between brush holder casing (11), support frame (12) lower extreme is provided with and is used for the installation mounting hole (121) of electric spring (163), support frame (12) are insulating material.