CN212996849U

CN212996849U - Electric toothbrush

Info

Publication number: CN212996849U
Application number: CN202021175993.3U
Authority: CN
Inventors: 朱绍亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-20
Anticipated expiration: 2030-06-22

Abstract

An electric toothbrush comprises a brush head shell and a handheld cylinder which are connected integrally, wherein a support is arranged at the end of the brush head shell, and a brush head is arranged on the outer side of the support; the brush head comprises a brush, a brush plate, a circular groove and a transmission hole which are formed in the surface of the brush plate, and the support is connected with the brush head through a bearing; a driving motor is arranged in the handheld barrel, a pinion is matched and sleeved at the output end of the driving motor, a transmission hole is in transmission connection with the driving motor through a transmission curved rod A, a magnetic connecting rod and a transmission curved rod B, and the brush can be acted by the driving force at the transmission hole and takes the support as a rotating shaft, so that the back-and-forth rotating motion is realized; the electric toothbrush has the technical key points that the whole electric toothbrush is simple in structure, good in cleaning effect, high in transmission efficiency, high in requirement on machining precision, low in requirement on production process, easy to obtain materials and easy for marketization production.

Description

Electric toothbrush

Technical Field

The utility model belongs to the daily necessities field specifically is an electric toothbrush.

Background

The daily necessities are articles used by ordinary people in daily life, namely household articles, household food, household appliances and the like; the applications are divided into: toiletries, household articles, cooking articles (classified according to kitchen and toilet articles), decorative articles, toiletries, and bedding articles.

The washing articles used by modern people in daily life mostly comprise electric toothbrushes, when the electric toothbrushes are used, the hairbrushes on the brush heads of the toothbrushes are short in service life, and the hairbrushes and the brush heads are integrally designed, so that the service life of the whole integrated structure is shortened; meanwhile, most of the existing electric toothbrushes have complex structures, so that the existing electric toothbrushes have large vibration and can generate large noise due to the reciprocating motion of a transmission part; finally, the prior electric toothbrush brush has small rotation amplitude or vibration amplitude, thereby causing the problem of unsatisfactory tooth surface cleanliness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an electric toothbrush.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric toothbrush comprises a brush head shell and a handheld cylinder which are connected in an integrated manner, wherein a support column is arranged at the end of the brush head shell, and a brush head is arranged on the outer side of the support column;

the brush head comprises a brush, a brush plate, a circular groove and a transmission hole, wherein the circular groove and the transmission hole are formed in the surface of the brush plate;

the inside of a handheld section of thick bamboo installs driving motor, driving motor's output is supporting to be equipped with pinion and gear wheel, loop through between transmission hole and the driving motor and set up transmission curved bar A, magnetism and connect connecting rod and transmission curved bar B transmission and be connected.

Preferably, the brush comprises a plurality of bristles and is of an integrated structure, a circular groove on one surface of the brush is clamped on the bearing, and the bearing is fixed on the surface of the support.

Preferably, the pillar, the bearing and the circular groove are sequentially sleeved, and the transmission hole is formed in the position outside the circular groove.

Preferably, the transmission curved bar a, the magnetic connecting rod and the transmission curved bar B are always in linear motion in a working state, and the transmission curved bar a, the magnetic connecting rod and the transmission curved bar B can be used as the whole transmission mechanism in the electric toothbrush.

Preferably, transmission curved bar A and magnetism connect the connecting rod all to set up inside the brush head shell, and the welding of transmission curved bar A's one end has the iron cap, one side that magnetism connects connecting rod one end to be close to the iron cap is provided with the magnetic path.

Preferably, the transmission curved bar B is arranged inside the handheld barrel, one end of the transmission curved bar B is provided with a shaft sleeve, a large gear is arranged on the surface of the shaft sleeve, and the large gear is in toothed connection with the small gear.

Preferably, the inside of the handheld barrel is provided with a switch, a circuit board and a battery, and the battery and the switch are connected with the circuit board through a lead.

Compared with the prior art, the utility model provides an electric toothbrush has following beneficial effect:

firstly, adopt interchangeable embedded brush head, can directly change the brush, and need not change whole brush head, can prolong the life of brush head to a certain extent, reduced the replacement cost.

Secondly, the adopted brush can perform rotary motion at low frequency, the brush rubs with the surface of the teeth back and forth and is fully contacted, the cleaning effect on the teeth is improved, and the comfort level is high; the polishing effect on the tooth surface can be improved when the high-frequency rotary motion is adopted.

Thirdly, the adopted transmission mechanism comprises a transmission curved bar A, a transmission curved bar B and a magnetic connecting rod which is connected by magnetic attraction, and the transmission curved bar A, the transmission curved bar B and the magnetic connecting rod are all in linear motion, so that the whole electric toothbrush has small vibration and low noise when in use; except the crankshaft and the transmission hole which are assembled on the bull gear, the whole transmission mechanism has no force application point on the handheld cylinder and the brush head shell, and further the use comfort level is improved.

Fourthly, the whole electric toothbrush has simple structure, high transmission efficiency, higher requirement on processing precision, low requirement on production process, easily available materials and easy marketization production.

Drawings

FIG. 1 is a side sectional view of the partial structure of the end head of the present invention;

FIG. 2 is a side cross-sectional view of the present invention after assembly;

FIG. 3 is a side cross-sectional view of the present invention in a disassembled state;

fig. 4 is a schematic view of the rotation state of the brush of the present invention.

Reference numerals: 1. a brush; 2. a circular groove; 3. a bearing; 4. a drive bore; 5. a transmission crank A; 6. an iron cap; 7. a connecting rod is magnetically connected; 8. a transmission curved bar B; 9. a bull gear; 10. a pinion gear; 11. a brush head housing; 12. a pillar; 13. a switch; 14. a battery; 15. a circuit board; 16. a hand-held cartridge; 17. and a shaft sleeve.

Detailed Description

The following describes a specific embodiment of the electric toothbrush of the present invention with reference to fig. 1. The present invention is not limited to the description of the following embodiments.

The embodiment shows a specific structure of an electric toothbrush, as shown in fig. 1-4, the electric toothbrush comprises a brush head shell 11 and a handheld barrel 16 which are connected integrally, wherein a support 12 is arranged at the end of the brush head shell 11, and a brush head is arranged outside the support 12;

the brush head shell 11 and the handheld cylinder 16 can be connected in a clamping mode;

the brush head comprises a brush 1, a brush plate, a circular groove 2 and a transmission hole 4 which are arranged on the surface of the brush plate, and the support 12 is connected with the brush head through a bearing 3;

a driving motor is arranged in the handheld barrel 16, the output end of the driving motor is matched with a small gear 10 and a large gear 9, and the transmission hole 4 is in transmission connection with the driving motor through a transmission curved rod A5, a magnetic connecting rod 7 and a transmission curved rod B8 in sequence.

The adopted brush 1 can perform rotary motion at low frequency, the brush 1 rubs with the surface of the teeth back and forth and is fully contacted, the cleaning effect on the teeth is improved, and the comfort level is high; the polishing effect on the tooth surface can be improved when the high-frequency rotary motion is adopted.

Specifically, the brush 1 rotates at a low frequency, and the rotation frequency can be adjusted by friction cleaning. Theoretically, the speed can be adjusted to 800-3000 revolutions per minute or 1600-6000 oscillations per minute.

The swing frequency or the vibration frequency of the current products in the market is 8000-40000 per minute. The low frequency circles round, and brush 1 and tooth surface can abundant contact, make a round trip to rub, and clean effectual, the comfort level is high, and the high frequency circles round can contact tooth surface convex part time, because centrifugal force effect leads to the laminating degree not good, so need increase the dynamics and press, will lead to the increase of wearing and tearing to enamel like this.

But the high-frequency convolution has better polishing effect on the tooth surface. The low-frequency convolution has less abrasion to the tooth surface compared with high-frequency rotation, and enamel is protected;

specifically, in the high-frequency convolution process, the brush generates a larger centrifugal force or is called as a brush barrier, and when the brush contacts the convex part on the surface of the tooth, the brush tends to push the tooth away under the influence of the centrifugal force or the brush barrier, so that the fitting degree is not good; especially in the crevices between teeth, this can induce increased pressure on the user, which in turn can lead to increased wear on the enamel.

Compared with high-frequency rotation, the low-frequency rotation generates sparse barrier, can fully contact teeth, has little abrasion to the surfaces of the teeth, protects enamel and is more delicate to clean.

The frequency of the back-and-forth rotation is determined by the motor type and the gear size of the large gear 9 and the small gear 10, and the frequency calculated approximately is not accurate but can be realized in one frequency interval.

The whole electric toothbrush has the advantages of simple structure, high transmission efficiency, higher requirement on processing precision, low requirement on production process, easily available materials and easy marketization production.

As shown in fig. 1-3, the brush 1 includes a plurality of bristles and is of an integrated structure, the circular groove 2 on one side of the brush 1 is clamped on the bearing 3, and the bearing 3 is fixed on the surface of the pillar 12.

The brush 1 can be directly replaced by adopting the replaceable embedded brush head without replacing the whole brush head, the service life of the brush head can be prolonged to a certain extent, and the replacement cost is reduced.

As shown in fig. 2 and 3, the pillar 12, the bearing 3 and the circular groove 2 are sequentially sleeved, and the transmission hole 4 is formed at a position outside the circular groove 2; the bearing 3 is made of stainless steel.

As shown in fig. 1-3, the transmission curved bar a5, the magnetic connecting link 7 and the transmission curved bar B8 are always in linear motion in the working state, and the transmission curved bar a5, the magnetic connecting link 7 and the transmission curved bar B8 can be used as the whole transmission mechanism in the electric toothbrush;

specifically, the length of the transmission curved rod B8 is long, the driving motor, the large gear 9 and the crankshaft assembled with the large gear 9 are located at the tail end of the whole electric toothbrush, so that the driving motor or the crankshaft and the vibration sent by the large gear 9 are far away from the brush head and the handheld part to the minimum degree, and the use comfort of the whole electric toothbrush is further improved.

As shown in fig. 1-3, the transmission curved bar a5 and the magnetic connecting rod 7 are both arranged inside the brush head housing 11, an iron cap 6 is welded at one end of the transmission curved bar a5, and a magnetic block is arranged at one side of one end of the magnetic connecting rod 7 close to the iron cap 6.

As shown in fig. 1-3, a transmission curved lever B8 is provided inside the hand-held barrel 16, and one end of the transmission curved lever B8 is equipped with a shaft sleeve 17, and a large gear 9 is installed on the surface of the shaft sleeve 17, and the large gear 9 is in toothed connection with a small gear 10.

The transmission mechanism adopted comprises the transmission curved bar A5, the transmission curved bar B8 and the magnetic connecting rod 7 which is connected by magnetic attraction, all move linearly, so that the whole electric toothbrush has small vibration and low noise when in use; except the crankshaft and the transmission hole 4 assembled on the big gear 9, the whole transmission mechanism has no force application point to the handheld cylinder and the brush head shell 11, thereby improving the use comfort.

As shown in fig. 1-3, a switch 13, a circuit board 15 and a battery 14 are mounted inside the handheld barrel 16, and the battery 14 and the switch 13 are connected with the circuit board 15 through a conducting wire.

Specifically, the user can operate the entire electric toothbrush by pressing the switch 13.

As shown in fig. 4, the rotating amplitude of the brush 1 is 0-85 ° under the driving action of the driving curved lever a 5.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. An electric toothbrush comprising a brush head housing (11) and a hand held cartridge (16) connected integrally, characterized in that: the end of the brush head shell (11) is provided with a support column (12), and the outer side of the support column (12) is provided with a brush head;

the brush head comprises a brush (1), a brush plate, a circular groove (2) and a transmission hole (4), wherein the circular groove and the transmission hole are formed in the surface of the brush plate, and the support column (12) is connected with the brush head through a bearing (3);

the interior mounting of a handheld section of thick bamboo (16) has driving motor, driving motor's output is supporting to have pinion (10) and gear wheel (9), loop through between transmission hole (4) and the driving motor and set up transmission curved bar A (5), magnetism and connect connecting rod (7) and transmission curved bar B (8) transmission and be connected.

2. The electric toothbrush of claim 1, wherein: the brush (1) comprises a plurality of bristles and is of an integrated structure, the circular groove (2) on one surface of the brush (1) is clamped on the bearing (3), and the bearing (3) is fixed on the surface of the support (12).

3. The electric toothbrush of claim 1, wherein: the support column (12), the bearing (3) and the circular groove (2) are sequentially sleeved, and the transmission hole (4) is formed in the position outside the circular groove (2).

4. The electric toothbrush of claim 1, wherein: the transmission curved bar A (5), the magnetic connecting rod (7) and the transmission curved bar B (8) are always in linear motion in a working state, and the transmission curved bar A (5), the magnetic connecting rod (7) and the transmission curved bar B (8) can be used as a whole transmission mechanism in the electric toothbrush.

5. The electric toothbrush of claim 1, wherein: the transmission curved bar A (5) and the magnetic connecting rod (7) are arranged inside the brush head shell (11), an iron cap (6) is welded at one end of the transmission curved bar A (5), and a magnetic block is arranged on one side, close to the iron cap (6), of one end of the magnetic connecting rod (7).

6. The electric toothbrush of claim 1, wherein: the transmission curved bar B (8) is arranged inside the handheld barrel (16), one end of the transmission curved bar B (8) is provided with a shaft sleeve (17), a large gear (9) is arranged on the surface of the shaft sleeve (17), and the large gear (9) is in toothed connection with the small gear (10).

7. The electric toothbrush of claim 1, wherein: the interior of the handheld barrel (16) is provided with a switch (13), a circuit board (15) and a battery (14), and the battery (14) and the switch (13) are connected with the circuit board (15) through a lead.