CN115607316B

CN115607316B - Electric toothbrush

Info

Publication number: CN115607316B
Application number: CN202211008793.2A
Authority: CN
Inventors: 王学武
Original assignee: Shenzhen Bestman Electronic Technology Co ltd
Current assignee: Shenzhen Bestman Electronic Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-09-12
Anticipated expiration: 2042-08-22
Also published as: CN115607316A

Abstract

The invention relates to the technical field of toothbrushes, in particular to an electric toothbrush. The electric toothbrush comprises an electric toothbrush body, wherein one end of the electric toothbrush body is electrically connected with a charging base, and the other end of the electric toothbrush body is provided with a toothbrush head unit; the electric toothbrush body comprises a body housing; an inner supporting tube is arranged in the body shell, and a storage battery is arranged in the inner supporting tube; a plurality of groups of fixed buckles are distributed at equal intervals at the top edges of the inner walls of the two sides of the battery compartment, and the inner support tube is movably clamped with the body shell through the fixed buckles; one side of the battery compartment is electrically connected with a vibration motor; one end of the vibration motor, which is far away from the storage battery, is connected with the toothbrush head unit. The first bristle module and the third bristle module with the same structure are respectively arranged on the two side walls and the inner wall of the bottom of the tooth cleaning groove, so that each angle of teeth can be cleaned, and the using effect of the electric toothbrush is improved.

Description

Electric toothbrush

Technical Field

The invention belongs to the technical field of toothbrushes, and particularly relates to an electric toothbrush.

Background

The electric toothbrush drives the toothbrush head to vibrate at high frequency through the vibration motor in the electric toothbrush, so that the tooth cleaning function is realized.

In order to ensure the tightness of the existing electric toothbrush, the existing electric toothbrush is integrated, and when the internal structure of the electric toothbrush fails, the electric toothbrush is difficult to disassemble and maintain, so that the convenience of maintenance of the electric toothbrush is reduced.

Disclosure of Invention

In view of the above problems, the present invention provides an electric toothbrush, including an electric toothbrush body, one end of which is electrically connected with a charging base, and the other end of which is provided with a toothbrush head unit;

the electric toothbrush body comprises a body housing; an inner supporting tube is arranged in the body shell, a battery compartment is arranged on the inner supporting tube, and the storage battery is arranged in the battery compartment; a plurality of groups of fixed buckles are distributed at equal intervals at the top edges of the inner walls of the two sides of the battery compartment, and the inner support tube is movably clamped with the body shell through the fixed buckles; a motor bin is arranged on one side of the battery bin, a vibration motor is arranged in the motor bin, and the vibration motor is electrically connected with the storage battery; one end of the vibration motor, which is far away from the storage battery, is connected with the toothbrush head unit; a sealing hole is formed in a port of one end of the battery compartment, which is far away from the motor compartment, an electrical connection block is arranged in the sealing hole, and one end of the electrical connection block extends into the battery compartment and is electrically connected with the storage battery; one end of the electric connection block, which is far away from the conducting strip, extends to the outside of the body shell and is electrically connected with the charging base.

Further, one end of the vibration motor, which is far away from the storage battery, is fixedly provided with a vibration head, and the other end of the vibration head is fixedly connected with the toothbrush head unit.

Further, a circuit board is fixedly arranged on the inner supporting tube and is respectively and electrically connected with the storage battery and the vibration motor.

Further, a toothbrush cleaning unit is fixedly arranged at one end of the electric toothbrush body far away from the charging base, and the toothbrush cleaning unit comprises a cleaning shell; the cleaning shell is arranged at one end of the electric toothbrush body, and the overlooking section of the cleaning shell is of a fan-shaped annular structure; and a lower cleaning groove with a fan-shaped annular cross section in overlooking is formed in the top of the cleaning shell.

Further, a liquid storage cavity is arranged below the lower cleaning groove, a liquid outlet is formed in the inner wall of the bottom of the lower cleaning groove, the other end of the liquid outlet is communicated with the liquid storage cavity, and a miniature ball valve is arranged at the joint; a liquid injection port is arranged on one side wall of the liquid storage cavity; the liquid storage cavity is internally provided with a liquid guiding pipe, the other end of the liquid guiding pipe extends into the lower cleaning groove, and the liquid guiding pipe is provided with a micropump.

Further, an upper cover is movably arranged at the top of the cleaning shell, an upper cleaning groove is formed in the bottom of the upper cover, and the overlook sections of the upper cover and the upper cleaning groove are of a fan-shaped annular structure; the upper cleaning groove and the lower cleaning groove are the same in size and are communicated with each other.

Further, two groups of toothbrush head clamping bars with a fan-shaped top cross section are symmetrically arranged on the inner wall of the top of the upper cleaning groove and the inner wall of the bottom of the lower cleaning groove; a plurality of groups of impurity cleaning mechanisms are evenly distributed on the outer wall of the toothbrush head clamping strip.

Further, the impurity cleaning mechanism comprises a rotary pipe and a fixed rod; a rotary groove is formed in one end of the rotary pipe, and an annular sliding groove is formed in the inner wall of the rotary groove; the other end of the rotating pipe is provided with a bump mounting plate, and a plurality of groups of cleaning bumps are evenly distributed on one side wall of the bump mounting plate, which is far away from the rotating pipe; a fixed rod is arranged in the rotating groove, a rotating ring is arranged on the outer wall of the fixed rod, and the rotating ring is connected in the annular sliding groove in a sliding manner; the other end of the fixed rod extends to the outside of the rotary groove and is fixedly arranged on the toothbrush head clamping strip.

Further, the toothbrush head unit is movably arranged in the cleaning shell and comprises a toothbrush head body; a toothbrush head connecting unit is arranged on one side wall of the toothbrush head body, and the other end of the toothbrush head connecting unit is hinged with the edge of the top opening of the cleaning shell; the overlooking section of the toothbrush head body is of a sector ring structure; two groups of tooth cleaning grooves with a fan-shaped top view section and open two ends are symmetrically formed in the outer walls of the upper side and the lower side of the toothbrush head body, and the toothbrush head body is movably arranged in the toothbrush cleaning unit; a plurality of groups of first bristle modules are distributed on the inner walls of the two sides of the tooth cleaning groove at equal intervals, a group of second bristle modules are arranged between two adjacent groups of first bristle modules, and the length of each second bristle module is larger than that of each first bristle module, and the width of each second bristle module is smaller than that of each first bristle module; a plurality of groups of third bristle modules are distributed on the inner wall of one side of the tooth cleaning groove far away from the opening at equal intervals, and a group of fourth bristle modules are arranged between two adjacent groups of third bristle modules; the third bristle module and the fourth bristle module are respectively identical to the first bristle module and the second bristle module in structure.

The beneficial effects of the invention are as follows:

1. all parts of the electric toothbrush body are modularized, and the inner supporting tube, the storage battery, the electric connection block and the vibration motor can be independently disassembled, so that the inner supporting tube is connected with the body shell by utilizing the fixing buckle. And a first rubber pad and a sealing ring are arranged at the joint. The tightness of the electric toothbrush body is ensured, the whole electric toothbrush body is convenient to detach, and the convenience of later maintenance is improved.

2. The conventional straight plate type toothbrush head is changed into a toothbrush head body with a fan-shaped overlook section, and when the toothbrush head body is used, teeth can be cleaned only by simultaneously placing the upper row of teeth and the lower row of teeth in two groups of tooth cleaning grooves and then starting a vibration mode. Because the width of tooth cleaning groove opening part is greater than the width of bottom, consequently make the laminating degree of tooth cleaning groove and tooth higher, each group of brush hair module is also more even to the atress of tooth to set up the same first brush hair module of structure and third brush hair module respectively on the both sides wall and the bottom inner wall of tooth cleaning groove, make every angle of tooth all can obtain the cleanness, thereby improved electric toothbrush's result of use.

3. After the toothbrush head body is used, the toothbrush head connecting unit is adjusted to be installed in a closed cavity formed by the lower cleaning groove and the upper cleaning groove, then cleaning liquid is injected into the closed cavity, and then the cleaning liquid is in a flowing state by utilizing a vibration mode of the electric toothbrush body, so that the toothbrush head body and each group of bristle modules are flushed, and a self-cleaning function is realized. Therefore, the convenience of the later maintenance of the toothbrush head body is improved, and the service life of the toothbrush head body is prolonged.

4. After the toothbrush head body enters the closed cavity, the two groups of toothbrush head clamping strips are respectively clamped in the two groups of tooth cleaning grooves, and each group of impurity cleaning mechanisms are respectively attached to the corresponding group of bristle modules. When the cleaning liquid flows due to the vibration mode, an impact is caused to the rotating pipe. The annular chute is in sliding connection in the rotary chute, so that the rotary chute rotates when being impacted, and then the rotary chute rotates to drive each group of cleaning lugs to circularly move along the central axis of the soil block mounting plate, and then the cleaning lugs collide with the bristle module to remove impurities with stronger surface adsorptivity of the bristle module. Thereby improving the cleaning quality of the brush head unit.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the structure of an electric toothbrush according to embodiment 1 of the present invention;

fig. 2 shows an exploded schematic view of an electric toothbrush body according to embodiment 1 of the present invention;

fig. 3 shows a schematic structural view of an inner support tube according to embodiment 1 of the present invention;

fig. 4 shows a schematic structural view of a battery compartment according to embodiment 1 of the present invention;

fig. 5 is a schematic view showing the structure of an electric toothbrush according to embodiment 2 of the present invention in operation;

fig. 6 is a schematic view showing the structure of an electric toothbrush according to embodiment 2 of the present invention when it is idle;

fig. 7 is a schematic view showing the structure of a toothbrush cleaning unit according to embodiment 2 of the present invention;

fig. 8 is a schematic view showing a right side cross-sectional view of a toothbrush cleaning unit according to example 2 of the present invention;

fig. 9 is a schematic view showing the structure of a brushhead strip in accordance with embodiment 2 of the present invention;

fig. 10 is a schematic view showing the structure of an impurity cleaning mechanism according to embodiment 2 of the present invention;

FIG. 11 is a schematic cross-sectional view showing an impurity cleaning mechanism according to embodiment 2 of the present invention;

fig. 12 is a schematic view showing the structure of a brush head coupling unit according to embodiment 2 of the present invention;

fig. 13 is a schematic view showing the structure of a brush head unit according to embodiment 2 of the present invention;

fig. 14 shows a schematic top view of a brush head unit according to embodiment 2 of the present invention;

fig. 15 shows an enlarged schematic view in the circle a in fig. 10 according to embodiment 2 of the present invention.

In the figure: 100. a charging base; 200. an electric toothbrush body; 201. a body housing; 210. an inner support tube; 211. a battery compartment; 212. a fixing buckle; 213. a conductive sheet; 214. a circuit board; 215. sealing the hole; 220. a motor compartment; 221. a vibration motor; 230. a vibrating head; 240. an electrical connection block; 300. a toothbrush cleaning unit; 310. cleaning the housing; 311. a lower cleaning tank; 320. an upper cover; 321. a cleaning groove is arranged on the upper part; 330. a liquid storage cavity; 331. a liquid injection port; 332. a liquid outlet; 333. a miniature ball valve; 340. a liquid guiding pipe; 341. a micropump; 350. a toothbrush head clamping strip; 360. impurity cleaning mechanism; 361. a rotary pipe; 362. a rotary groove; 363. an annular chute; 364. a fixed rod; 365. a swivel; 366. a bump mounting plate; 367. cleaning the protruding blocks; 400. a toothbrush head connecting unit; 410. a first connection plate; 411. a clamping joint; 420. a second connecting plate; 421. a clamping hole; 430. a hinged support; 431. waterproof sealing strips; 440. a vertical rod; 450. a steering sleeve; 451. a limiting hole; 460. a spring buckle; 470. a toothbrush head connecting rod; 500. a toothbrush head unit; 510. a toothbrush head body; 520. a tooth cleaning groove; 530. a first bristle module; 540. a second bristle module; 550. a third bristle module; 560. and a fourth bristle module.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

embodiments of the present invention provide an electric toothbrush including an electric toothbrush body 200 and a charging base 100. Illustratively, as shown in fig. 1, the electric toothbrush body 200 is electrically connected to the charging base 100. The electric toothbrush body 200 has a brush head unit 500 fixedly mounted at one end thereof, the brush head unit 500 comprises a bristle mounting plate having a straight plate structure, and a bristle body is fixedly mounted on the bristle mounting plate. The brush head unit 500 is used to implement the brushing function of the electric toothbrush.

The electric toothbrush body 200 includes a body housing 201. As shown in fig. 2, 3 and 4, the body housing 201 is formed by two sets of semicircular housings with the same structure being clamped to each other, and a first rubber pad is disposed at the joint of the two sets of semicircular housings. An inner supporting tube 210 is arranged in the body shell 201, a battery compartment 211 is arranged on the inner supporting tube 210, and a storage battery is arranged in the battery compartment 211. A plurality of groups of fixing buckles 212 are distributed at equal intervals on the top edges of the inner walls of the two sides of the battery compartment 211, and the inner support tube 210 is movably clamped with the body shell 201 through the fixing buckles 212. A motor bin 220 is arranged on one side of the battery bin 211, a vibration motor 221 is arranged in the motor bin 220, and the vibration motor 221 is electrically connected with a storage battery. The vibration motor 221 is fixedly provided with a vibration head 230 at one end far away from the storage battery, and the other end of the vibration head 230 is fixedly connected with the toothbrush head unit 500. The battery compartment 211 is provided with a sealing hole 215 at a port of one end far away from the motor compartment 220, an electrical connection block 240 is arranged in the sealing hole 215, one end of the electrical connection block 240 extends into the battery compartment 211 and is electrically connected with a conductive sheet 213, and the other end of the conductive sheet 213 is electrically connected with a storage battery. The end of the electrical connection block 240 away from the conductive sheet 213 extends to the outside of the body housing 201, and is electrically connected to the charging base 100. A sealing ring is disposed at the joint between the electrical connection block 240 and the body housing 201. The inner support tube 210 is fixedly provided with a circuit board 214, and the circuit board 214 is electrically connected with the storage battery and the vibration motor 221 respectively.

The electric toothbrush body 200 is modularized, the inner support tube 210, the storage battery, the electric connection block 240 and the vibration motor 221 are all independently detachable, and the inner support tube 210 is connected with the body housing 201 by the fixing buckle 212. And a first rubber pad and a sealing ring are arranged at the joint. The tightness of the electric toothbrush body 200 is ensured, the whole electric toothbrush body is convenient to detach, and the convenience of later maintenance is improved.

Example 2:

the embodiment of the present invention also provides an electric toothbrush comprising an electric toothbrush body 200 and a charging base 100. As shown in fig. 6 and 7, the electric toothbrush body 200 and the charging base 100 are constructed in the same manner as in embodiment 1.

The electric toothbrush body 200 is fixedly installed at one end thereof with a toothbrush cleaning unit 300. The toothbrush cleaning unit 300 is used for cleaning a toothbrush head.

The toothbrush head connection unit 400 is hinged to the outer wall of the toothbrush cleaning unit 300. The brush head coupling unit 400 serves to adjust the position of the brush head.

The other end of the toothbrush head connecting unit 400 is provided with a toothbrush head unit 500, and the toothbrush head unit 500 is movably installed in the inner cavity of the housing of the toothbrush cleaning unit 300. The brush head unit 500 is used to implement the brushing function of the electric toothbrush.

The toothbrush cleaning unit 300 includes a cleaning housing 310. As shown in fig. 8, 9 and 10, the cleaning housing 310 is fixedly installed at one end of the electric toothbrush body 200, and the cleaning housing 310 has a sector-shaped cross section in a top view. And a lower cleaning groove 311 with a fan-shaped cross section in a top view is formed in the top of the cleaning housing 310. The liquid storage cavity 330 is arranged below the lower cleaning groove 311, a liquid outlet is arranged on the inner wall of the bottom of the lower cleaning groove 311, the other end of the liquid outlet is communicated with the liquid storage cavity 330, and a miniature ball valve 333 is arranged at the joint. A liquid filling port 331 is disposed on a side wall of the liquid storage cavity 330. The liquid storage cavity 330 is provided with a liquid guiding pipe 340, the other end of the liquid guiding pipe 340 extends into the lower cleaning groove 311, and the liquid guiding pipe 340 is provided with a micropump 341. The model of the micropump 341 is EXV-2X-MFX. The top of the cleaning housing 310 is movably provided with an upper cover 320, an upper cleaning groove 321 is provided at the bottom of the upper cover 320, and the top cross sections of the upper cover 320 and the upper cleaning groove 321 are all in a fan-shaped ring structure. The upper cleaning groove 321 and the lower cleaning groove 311 are the same size and communicate with each other. Two groups of toothbrush head clamping bars 350 with fan-shaped top-view cross sections are symmetrically arranged on the top inner wall of the upper cleaning groove 321 and the bottom inner wall of the lower cleaning groove 311. A plurality of impurity cleaning mechanisms 360 are evenly distributed on the outer wall of the toothbrush head clamping strip 350.

The impurity cleaning mechanism 360 includes a rotating tube 361 and a fixed rod 364. As shown in fig. 11 and 12, an end of the rotary pipe 361 is provided with a rotary slot 362, and an inner wall of the rotary slot 362 is provided with an annular chute 363. The other end of the rotating tube 361 is provided with a bump mounting plate 366, and a plurality of groups of cleaning bumps 367 are evenly distributed on one side wall of the bump mounting plate 366, which is far away from the rotating tube 361. A fixed rod 364 is arranged in the rotating groove 362, a rotating ring 365 is arranged on the outer wall of the fixed rod 364, and the rotating ring 365 is slidably connected in the annular sliding groove 363. The other end of the fixing rod 364 extends to the outside of the rotating groove 362 and is fixedly mounted on the head clip 350.

First, cleaning liquid (physiological saline is used but not limited to in this embodiment) is injected into the liquid storage chamber 330 through the liquid injection port 331, and after the brush head unit 500 is used, the brush head unit 500 is mounted into the lower cleaning tank 311 by adjusting the brush head coupling unit 400, and then the upper cover 320 is closed, so that the brush head unit 500 can be positioned in the closed chamber formed by the lower cleaning tank 311 and the upper cleaning tank 321. The micropump 341 is then turned on, and the cleaning liquid in the liquid storage chamber 330 is injected into the closed chamber by the liquid introduction pipe 340. Then, the vibration mode of the electric toothbrush body 200 is turned on, so that the cleaning liquid in the closed cavity can be in a moving state by vibration, and thus the bristles on the brush head unit 500 are cleaned. Manual operation is not needed, so that the self-cleaning function is realized. After the cleaning operation is completed, the micro ball valve 333 is opened, and the cleaning liquid is re-discharged into the liquid storage chamber 330 through the liquid outlet 332. And cleaning liquid remaining on the brush head unit 500 and the inner wall of the closed cavity can be separated by using the vibration mode. Allowing the brushhead unit 500 to be in a dry environment.

The brush head coupling unit 400 includes a first coupling plate 410. Illustratively, as shown in fig. 13, the first connection plate 410 is hinged at one end to an edge of the opening side of the lower cleaning groove 311, and the second connection plate 420 is hinged at the other end. The first connecting plate 410 is provided with a clamping head 411. The second connecting plate 420 is provided with a clamping hole 421, and the clamping connector 411 is movably clamped in the clamping hole 421. The end of the second connecting plate 420 away from the first connecting plate 410 is fixedly provided with a hinge support 430, and the outer wall of the hinge support is sleeved with a waterproof sealing strip 431. The end of the hinged support 430 far away from the second connecting plate 420 is in an open structure, an upright rod 440 is arranged at the opening, a steering sleeve 450 is rotatably sleeved on the upright rod 440, and a plurality of groups of limiting holes 451 are distributed on the outer wall of the steering sleeve 450 in an annular array. The outer wall of one side of the hinged support 430 is provided with a spring buckle 460, and one end of the spring buckle 460 extends into the cavity of the hinged support 430 and is movably clamped in any one group of limiting holes 451. The steering sleeve 450 is fixedly provided with a toothbrush head connecting rod 470.

After the toothbrush head unit 500 is used, the second connecting plate 420 is folded and attached to the first connecting plate 410 by utilizing the hinged relationship between the first connecting plate 410 and the second connecting plate 420, so that the clamping connector 411 can be clamped in the clamping hole 421. Meanwhile, the toothbrush head unit 500 is also clamped in the lower cleaning groove 311 along with the overturning of the second connecting plate 420, so as to facilitate cleaning. The hinged support 430 is also clamped at the top notch of the cleaning housing 310, and the waterproof sealing strip 431 is used to block the gap between the hinged support 430 and the notch, so as to prevent the cleaning liquid from leaking out of the notch. By rotating the steering sleeve 450, the angle of the brush head unit 500 can be adjusted to a desired position, and then the spring clips 460 can be snapped into a corresponding set of limiting holes 451. Not only improves the use comfort of the electric toothbrush, but also has simple and quick adjustment work and improves the use convenience.

The brushhead unit 500 includes a brushhead body 510. As shown in fig. 14 and 15, the brush head body 510 is fixedly installed at an end of the brush head connection rod 470, which is far away from the hinge support 430, and the brush head body 510 has a sector ring-shaped cross section in a top view. Two groups of tooth cleaning grooves 520 with fan-shaped overlook sections are symmetrically arranged on the outer walls of the upper side and the lower side of the toothbrush head body 510, two ends of each tooth cleaning groove 520 are of an open structure, and the width of the opening of each tooth cleaning groove 520 is larger than that of the bottom. The toothbrush head body 510 is movably mounted in the cavity formed by the lower cleaning groove 311 and the upper cleaning groove 321, and the two groups of tooth cleaning grooves 520 are respectively movably sleeved on the two groups of toothbrush head clamping bars 350. A plurality of groups of first bristle modules 530 are distributed on the inner walls of the two sides of the tooth cleaning groove 520 at equal intervals, a group of second bristle modules 540 are arranged between every two adjacent groups of first bristle modules 530, the length of each second bristle module 540 is larger than that of each first bristle module 530, and the width of each second bristle module 540 is smaller than that of each first bristle module 530. A plurality of groups of third bristle modules 550 are distributed on the inner wall of one side of the tooth cleaning groove 520 far away from the opening at equal intervals, and a group of fourth bristle modules 560 are arranged between two adjacent groups of third bristle modules 550. The third bristle module 550 has the same structure as the first bristle module 530, and the fourth bristle module 560 has the same structure as the second bristle module 540.

The conventional straight plate type toothbrush head is changed into a toothbrush head body 510 with a fan-shaped top view cross section, and when the toothbrush head body 510 is used, teeth can be cleaned by only placing upper teeth and lower teeth in two groups of teeth cleaning grooves 520 at the same time and then starting a vibration mode. Because the width of the opening of the tooth cleaning groove 520 is greater than the width of the bottom, the fitting degree of the tooth cleaning groove 520 and the teeth is higher, the stress of each group of bristle modules on the teeth is more uniform, and the first bristle module 530 and the third bristle module 550 with the same structure are respectively arranged on the two side walls and the inner wall of the bottom of the tooth cleaning groove 520, so that each angle of the teeth can be cleaned, and the cleaning effect is improved.

A set of second bristle module 540 and fourth bristle module 560 are disposed between two adjacent sets of first bristle module 530 and between two adjacent sets of third bristle module 550, respectively, and the lengths of the second bristle module 540 and the fourth bristle module 560 are greater than the lengths of the first bristle module 530 and the third bristle module 550, respectively, and the widths are smaller than the lengths of the first bristle module 530 and the third bristle module 550, respectively. So that the second bristle module 540 and the fourth bristle module 560 can penetrate into the crevices for cleaning, and dead angles are avoided.

The invention has the following beneficial effects:

1. the electric toothbrush body 200 is modularized, the inner support tube 210, the storage battery, the electric connection block 240 and the vibration motor 221 are all independently detachable, and the inner support tube 210 is connected with the body housing 201 by the fixing buckle 212. And a first rubber pad and a sealing ring are arranged at the joint. The tightness of the electric toothbrush body 200 is ensured, the whole electric toothbrush body is convenient to detach, and the convenience of later maintenance is improved.

2. The conventional straight plate type toothbrush head is changed into a toothbrush head body 510 with a fan-shaped top view cross section, and when the toothbrush head body 510 is used, teeth can be cleaned by only placing upper teeth and lower teeth in two groups of teeth cleaning grooves 520 at the same time and then starting a vibration mode. Because the width of the opening of the tooth cleaning groove 520 is greater than the width of the bottom, the fitting degree of the tooth cleaning groove 520 and the teeth is higher, the stress of each group of bristle modules on the teeth is more uniform, and the first bristle module 530 and the third bristle module 550 with the same structure are respectively arranged on the two side walls and the inner wall of the bottom of the tooth cleaning groove 520, so that each angle of the teeth can be cleaned, and the using effect of the electric toothbrush is improved.

3. After the toothbrush head body 510 is used, the toothbrush head connecting unit 400 is adjusted to be installed in a closed cavity formed by the lower cleaning groove 311 and the upper cleaning groove 321, then cleaning liquid is injected into the closed cavity, and then the cleaning liquid is in a flowing state by using the vibration mode of the electric toothbrush body 200, so that the toothbrush head body 510 and each group of bristle modules are flushed, and a self-cleaning function is realized. Thereby improving the convenience of the post-maintenance of the brush head body 510 and prolonging the service life of the brush head body 510.

4. A set of second bristle module 540 and fourth bristle module 560 are disposed between two adjacent sets of first bristle module 530 and between two adjacent sets of third bristle module 550, respectively, and the lengths of the second bristle module 540 and the fourth bristle module 560 are greater than the lengths of the first bristle module 530 and the third bristle module 550, respectively, and the widths are smaller than the lengths of the first bristle module 530 and the third bristle module 550, respectively. So that the second bristle module 540 and the fourth bristle module 560 can penetrate into the crevices for cleaning, and dead angles are avoided.

5. After the toothbrush head body 510 enters the closed cavity, the two groups of toothbrush head clamping bars 350 are respectively clamped in the two groups of tooth cleaning grooves 520, and each group of impurity cleaning mechanisms 360 is respectively attached to a corresponding group of bristle modules. When the cleaning liquid flows due to the vibration mode, an impact is caused to the rotating tube 361. Because the annular chute 363 is slidingly connected in the rotary groove 362, the rotary pipe 361 rotates when being impacted, and then the cleaning lugs 367 are driven to move along the circumference of the central axis of the lug mounting plate 366 by the rotation of the rotary pipe, and then the impurities with strong adsorptivity on the surface of the bristle module are removed by the collision and the collision between the cleaning lugs 367 and the bristle module. Thereby improving the cleaning quality of the brush head unit 500.

6. By rotating the steering sleeve 450, the angle of the brush head unit 500 can be adjusted to a desired position, and then the spring clips 460 can be snapped into a corresponding set of limiting holes 451. Not only improves the use comfort of the electric toothbrush, but also has simple and quick adjustment work and improves the use convenience.

Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric toothbrush, characterized in that: the electric toothbrush comprises an electric toothbrush body (200), wherein one end of the electric toothbrush body (200) is electrically connected with a charging base (100), one end, far away from the charging base (100), of the electric toothbrush body (200) is fixedly provided with a toothbrush cleaning unit (300), the toothbrush cleaning unit (300) comprises a cleaning shell (310), and a toothbrush head unit (500) is movably arranged in the cleaning shell (310);

the electric toothbrush body (200) includes a body housing (201); an inner supporting tube (210) is arranged in the body shell (201), a battery compartment (211) is formed in the inner supporting tube (210), and a storage battery is arranged in the battery compartment (211); a plurality of groups of fixed buckles (212) are distributed at equal intervals at the top edges of the inner walls of the two sides of the battery bin (211), and the inner support tube (210) is movably clamped with the body shell (201) through the fixed buckles (212); a motor bin (220) is arranged on one side of the battery bin (211), a vibration motor (221) is arranged in the motor bin (220), and the vibration motor (221) is electrically connected with the storage battery; one end of the vibration motor (221) far away from the storage battery is connected with the toothbrush head unit (500); a sealing hole (215) is formed in a port of one end, far away from the motor bin (220), of the battery bin (211), an electrical connection block (240) is arranged in the sealing hole (215), and one end of the electrical connection block (240) extends into the battery bin (211) and is electrically connected with a storage battery; one end of the electrical connection block (240) far away from the conductive sheet (213) extends to the outside of the body shell (201) and is electrically connected with the charging base (100);

the toothbrush head unit (500) comprises a toothbrush head body (510), wherein the top-down section of the toothbrush head body (510) is of a fan-shaped annular structure, the cleaning shell (310) is arranged at one end of the electric toothbrush body (200), and the top-down section of the cleaning shell (310) is of a fan-shaped annular structure; a lower cleaning groove (311) with a fan-shaped cross section in a overlooking mode is formed in the top of the cleaning shell (310);

a liquid storage cavity (330) is arranged below the lower cleaning groove (311), a liquid outlet is arranged on the inner wall of the bottom of the lower cleaning groove (311), the other end of the liquid outlet is communicated with the liquid storage cavity (330), and a miniature ball valve (333) is arranged at the joint; a liquid injection port (331) is arranged on one side wall of the liquid storage cavity (330); a liquid guiding pipe (340) is arranged in the liquid storage cavity (330), the other end of the liquid guiding pipe (340) extends into the lower cleaning groove (311), a micropump (341) is arranged on the liquid guiding pipe (340), an upper cover (320) is movably arranged at the top of the cleaning shell (310), an upper cleaning groove (321) is formed in the bottom of the upper cover (320), and the overlooking sections of the upper cover (320) and the upper cleaning groove (321) are of a fan-shaped structure; the upper cleaning groove (321) and the lower cleaning groove (311) are the same in size and are communicated with each other;

the cleaning liquid in the closed cavity can be in a moving state through vibration, so that the brush hair on the toothbrush head unit (500) can be cleaned.

2. An electric toothbrush according to claim 1, wherein: one end of the vibration motor (221) far away from the storage battery is fixedly provided with a vibration head (230), and the other end of the vibration head (230) is fixedly connected with the toothbrush head unit (500).

3. An electric toothbrush according to claim 1, wherein: the inner support tube (210) is fixedly provided with a circuit board (214), and the circuit board (214) is respectively and electrically connected with the storage battery and the vibration motor (221).

4. An electric toothbrush according to claim 1, wherein: two groups of toothbrush head clamping strips (350) with a fan-shaped cross section in overlook view are symmetrically arranged on the top inner wall of the upper cleaning groove (321) and the bottom inner wall of the lower cleaning groove (311); the outer wall of the toothbrush head clamping strip (350) is evenly provided with a plurality of groups of impurity cleaning mechanisms (360).

5. An electric toothbrush according to claim 4, wherein: the impurity cleaning mechanism (360) comprises a rotary pipe (361) and a fixed rod (364); a rotary groove (362) is formed in one end of the rotary pipe (361), and an annular chute (363) is formed in the inner wall of the rotary groove (362); the other end of the rotating pipe (361) is provided with a bump mounting plate (366), and a plurality of groups of cleaning bumps (367) are evenly distributed on one side wall of the bump mounting plate (366) far away from the rotating pipe (361); a fixed rod (364) is arranged in the rotating groove (362), a rotating ring (365) is arranged on the outer wall of the fixed rod (364), and the rotating ring (365) is connected in the annular sliding groove (363) in a sliding way; the other end of the fixed rod (364) extends to the outside of the rotary groove (362) and is fixedly arranged on the toothbrush head clamping strip (350).

6. An electric toothbrush according to claim 1, wherein: a toothbrush head connecting unit (400) is arranged on one side wall of the toothbrush head body (510), and the other end of the toothbrush head connecting unit (400) is hinged with the edge of the top opening of the cleaning shell (310); two groups of tooth cleaning grooves (520) with fan-shaped top-view sections and open two ends are symmetrically formed in the outer walls of the upper side and the lower side of the toothbrush head body (510), and the toothbrush head body (510) is movably arranged in the toothbrush cleaning unit (300); a plurality of groups of first bristle modules (530) are distributed on the inner walls of the two sides of the tooth cleaning groove (520) at equal intervals, a group of second bristle modules (540) are arranged between two adjacent groups of first bristle modules (530), and the length of each second bristle module (540) is larger than that of each first bristle module (530) and the width of each second bristle module is smaller than that of each first bristle module (530); a plurality of groups of third bristle modules (550) are distributed on the inner wall of one side of the tooth cleaning groove (520) far away from the opening at equal intervals, and a group of fourth bristle modules (560) are arranged between two adjacent groups of third bristle modules (550); the third bristle module (550) and the fourth bristle module (560) are identical in structure to the first bristle module (530) and the second bristle module (540), respectively.