CN211271320U

CN211271320U - Electric toothbrush head

Info

Publication number: CN211271320U
Application number: CN201921356462.1U
Authority: CN
Inventors: 张磊磊
Original assignee: Wenzhou Zozen Electrical Appliance Co ltd
Current assignee: Zhejiang Mengli Electrical Technology Co.,Ltd.
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-08-18
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses an electric toothbrush head, including casing and brush hair, be equipped with brush holder, output shaft subassembly in the casing, be fixed in the output shaft subassembly on the driving gear, with driving gear engaged with driven gear, driving gear and driven gear's axle center mutually perpendicular, driven gear rotates to be connected in the casing, the brush holder slides with the drain pan and is connected, brush holder one end is planted the brush hair, the other end be provided with brush holder length direction vertically long and thin cam hole, driven gear's eccentric position is equipped with the meshing round pin that extends to in the cam hole. The rotating direction of the output shaft assembly is changed through vertical meshing of the driven gear and the driving gear, and the cam hole and the meshing pin are matched, so that the rotating motion can be converted into the linear reciprocating motion, namely, the bristles can do the linear reciprocating motion, the toothbrush head can meet the scientific tooth brushing mode, and the toothbrush is very convenient to use.

Description

Electric toothbrush head

Technical Field

The utility model relates to an electrical apparatus field, in particular to electric toothbrush head.

Background

The electric toothbrush is a toothbrush invented by Philippe-Guy Woog, the brush head generates high-frequency vibration through the quick rotation or vibration of the motor core, toothpaste is instantly decomposed into fine foam to deeply clean slits between teeth, and meanwhile, the vibration of the bristles can promote the blood circulation in the oral cavity and has a massage effect on gum tissues. The electric toothbrush can vibrate rapidly to effectively remove dental plaque, and has already revolutionized the field of oral health care at home and abroad.

The electric toothbrush adopting the vibration mode in the prior art has a simple structure and low price, namely the motor drives the eccentric block to rotate and vibrate, but the tooth brushing effect is not ideal, and the effect of cleaning teeth can be achieved only by manually brushing the teeth back and forth manually. The toothbrush head of the other electric toothbrush adopts a rotary brushing mode, but the rotary brushing mode is difficult to remove dirt in tooth gaps, is easy to clamp and is not comfortable to use. The most scientific tooth brushing mode is to brush the bristles along the direction of the interdental space, so the tooth brushing mode of the existing electric toothbrush does not meet the scientific tooth brushing requirement, and the aim of effectively removing dirt in the interdental space is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric toothbrush head with a toothbrush bristle capable of doing linear reciprocating motion.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an electric toothbrush head, includes casing and brush hair, be equipped with brush holder, output shaft subassembly in the casing, be fixed in output shaft subassembly on the driving gear, with driving gear engaged with driven gear, driving gear and driven gear's axle center mutually perpendicular, driven gear rotates to be connected in the casing, the brush holder slides with the drain pan and is connected, brush holder one end is planted the brush hair, the other end be provided with brush holder length direction vertically long and thin cam hole, driven gear's eccentric position is equipped with the meshing round pin that extends to in the cam hole.

Through above-mentioned technical scheme, the direction of rotation of output shaft subassembly is changed through the perpendicular meshing of driven gear and driving gear to combine the cooperation of cam hole and meshing round pin, can change rotary motion into linear reciprocating motion, even make the brush hair can be linear reciprocating motion, such toothbrush head just can satisfy scientific brushing teeth mode, and it is also very convenient to use.

Further, the output shaft assembly comprises a rotating shaft, a clamping sleeve and a transmission sleeve, the rotating shaft is used for fixing the driving gear, the clamping sleeve is fixedly connected to the rotating shaft in a sleeved mode, the transmission sleeve and the clamping sleeve are mutually sleeved and can slide in the axial direction of the rotating shaft, and an elastic part is arranged between the transmission sleeve and the clamping sleeve.

Through above-mentioned technical scheme, because this electric toothbrush head changes rotary motion into straight reciprocating motion, so to output shaft subassembly on can produce axial impact force, in order to protect the pivot and rather than complex part, increased the structure of axial buffering to output shaft subassembly. Slip through cutting ferrule and transmission cover adds the joint cooperation promptly to set up the elastic component between the two, make axial force can obtain effectual buffering, and the elastic component can let the motor play axle on transmission cover and the toothbrush body combine together all the time, and continuous changes rotary motion into linear reciprocating motion.

Furthermore, transmission cover one end is for rotating the head, and the other end is the sleeve, and the circumference distributes on the sleeve has the outside jack catch that extends of a plurality of, cutting ferrule one end cup joints fixedly with the pivot, and the other end is cup joint the portion, cup joint and be equipped with the groove that slides the same with jack catch quantity in the portion, the length direction in groove that slides sets up with pivot length direction is the same, the radial joint of jack catch is in the groove that slides, and the jack catch slides with the groove that slides and be connected in axial direction, the elastic component sets up in the sleeve, the elastic component both ends butt respectively on sleeve and cutting ferrule.

Through the technical scheme, the clamping claws are matched with the sliding grooves in a clamping manner, so that the clamping sleeve and the transmission sleeve realize sliding fit in a certain axial stroke and a radial clamping connection relationship, and the clamping manner is convenient to assemble and stable in connection relationship; in addition, the elastic piece is arranged in the sleeve, so that the elastic piece can be effectively protected.

Furthermore, the brush holder includes the handle pole and plants the planting hair seat of brush hair, casing one end is equipped with and is used for holding the holding chamber of planting the hair seat, the length in holding chamber is slightly longer than the length of planting the hair seat, it connects in the holding intracavity to plant the hair seat and slide.

Through above-mentioned technical scheme, connect through the directional slip of holding chamber and planting hair seat, its direction of motion that can effectual restriction brush holder so make the realization straight reciprocating motion that the brush holder can be more stable, let the straight reciprocating motion's of brush hair action of brushing teeth more stable promptly.

Furthermore, one end of the handle rod is detachably connected with the hair planting base, and the other end of the handle rod is provided with the cam hole.

Through above-mentioned technical scheme, the handle pole can be dismantled with the planting hair and be connected, and when the brush hair practicality was too of a specified duration or bad, the convenient change that plants hair seat part with the replacement moreover, has also saved the cost that the user replaced the brush head.

Furthermore, the one end of planting the hair seat dorsad brush hair is equipped with a plurality of joint post, be equipped with the card hole the same with joint post quantity on the brush holder, card hole and joint post joint.

Through above-mentioned technical scheme, the cooperation of card hole and joint post is convenient to be assembled, and the cooperation in a plurality of joint posts and card hole makes connection structure more stable moreover.

Furthermore, the other end of casing is the fixed part, the joint has the bush in the fixed part, bush and output shaft subassembly fixed connection.

Through above-mentioned technical scheme, some by force that the joint structure of bush and fixed part can be done, fix the output shaft subassembly in the fixed part of casing through the bush, let the output shaft subassembly more stable, the axial impact force that it received can let the bush share to make things convenient for the whole dismantlement and the installation of output shaft subassembly.

Furthermore, the shell comprises a bottom shell and a cover body, wherein insertion posts which are in insertion fit with the cover body are arranged on two sides of the brush handle in the bottom shell, and a limit groove for the brush handle to slide is formed between the two insertion posts.

Through the technical scheme, the inserting columns not only enable the shell and the cover body to form an inserting matching connection relation, so that the installation is more convenient, but also enable the brush holder to only slide along the length direction of the brush holder to match with the brush holder, so that the running stability of the brush holder is further ensured.

Further, the elastic member is a spring.

Through above-mentioned technical scheme, the spring is common elastic component, uses here and to satisfy basic requirement, and is with low costs moreover, and the assembly is also very convenient.

To sum up, the beneficial effects of the utility model are that: on the basis of the electric toothbrush with the existing rotating mode, the brush head is replaced by the electric toothbrush head, the electric toothbrush head is connected with the body of the electric toothbrush through the output shaft assembly and obtains rotating power, the rotating direction of the output shaft assembly is changed through vertical meshing of the driven gear and the driving gear, and the cam hole and the meshing pin are combined, so that the rotating motion can be converted into linear reciprocating motion, namely, the bristles are made into linear reciprocating motion.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a schematic view of the connection mechanism of the brush holder, output assembly, driving gear, driven gear, and bushing;

FIG. 3 is a front view of the structure of FIG. 2;

FIG. 4 is an enlarged view of the portion A in FIG. 2

FIG. 5 is a schematic structural view of the bottom case;

FIG. 6 is a schematic view of the combination of the output assembly and the drive gear;

FIG. 7 is a front view of the structure of FIG. 6;

fig. 8 is a sectional view of B-B in fig. 7.

Reference numerals: 1. a housing; 11. an accommodating cavity; 12. a bottom case; 121. inserting the column; 122. a limiting groove; 13. a fixed part; 14. a cover body; 15. a through groove; 2. brushing; 3. a brush handle; 31. a cam hole; 32. a handle bar; 321. a clamping hole; 33. a hair planting base; 331. a clamping column; 34. a slide bar; 4. an output shaft assembly; 41. a rotating shaft; 42. a card sleeve; 421. a socket joint part; 422. a sliding groove; 43. a transmission sleeve; 431. rotating the head; 432. a sleeve; 433. a claw; 5. a driving gear; 6. a driven gear; 61. an engagement pin; 7. elastic member, 8, bush.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1, fig. 2 and fig. 4, an electric toothbrush head comprises a housing 1 and bristles 2, a toothbrush handle 3 is arranged in the housing 1, an output shaft assembly 4, a driving gear 5 fixed on the output shaft assembly 4, and a driven gear 6 engaged with the driving gear 5, wherein the driving gear 5 is perpendicular to the axis of the driven gear 6, the driven gear 6 is rotatably connected in the housing 1, the toothbrush handle 3 is connected with a bottom shell 12 in a sliding manner, the bristles 2 are planted at one end of the toothbrush handle 3, a long and thin cam hole 31 perpendicular to the length direction of the toothbrush handle 3 is arranged at the other end of the toothbrush handle, and an engaging pin 61 extending into the cam hole 31 is arranged at the. On the basis of the existing electric toothbrush with a rotary mode, the brush head of the electric toothbrush is replaced by the electric toothbrush head, the output shaft assembly 4 is connected with the body of the electric toothbrush to obtain rotary power, the rotating direction of the output shaft assembly 4 is changed by vertically meshing the driven gear 6 and the driving gear 5, and the brush handle 3 is enabled to reciprocate along the length direction of the brush handle by combining the matching of the cam hole 31 and the meshing pin 61, so that the brush 2 is enabled to do linear reciprocating motion.

As shown in fig. 6-8, the output shaft assembly 4 includes a rotating shaft 41, a sleeve 42, and a transmission sleeve 43, the driving gear 5 is fixed at one end of the rotating shaft 41, and the sleeve 42 is fixed in the middle of the rotating shaft 41; the transmission cover 43 one end is for rotating the head 431, the other end is sleeve 432, the circumference distributes has the outside jack catch 433 that extends of a plurality of on the sleeve 432, cutting ferrule 42 one end is cup jointed fixedly with pivot 41, the other end is cup joint portion 421, be equipped with the groove 422 that slides the same with jack catch 433 quantity on cup joint portion 421, the length direction in groove 422 that slides sets up the same with pivot 41 length direction, radial joint in the groove 422 that slides of jack catch 433, and jack catch 433 slides with the groove 422 that slides in axial direction and be connected, still set up elastic component 7 in the sleeve 432, can be the spring, the spring both ends butt respectively on sleeve 432 and cutting ferrule 42.

In order to facilitate the replacement of the brush bristles 2, as shown in fig. 2, 3 and 5, the brush holder 3 is divided into a handle bar 32 and a bristle implanting base 33, the bottom of the bristle implanting base 33 is provided with a plurality of clamping posts 331, one end of the brush holder 3 is provided with clamping holes 321 the same as the clamping posts 331 in number, the handle bar 32 and the bristle implanting base 33 are clamped with the clamping posts 331 through the clamping holes 321, and a slender cam hole 31 is arranged at the other end of the brush holder 3; one end of the shell 1 is provided with an accommodating cavity 11 for accommodating the hair-planting seat 33, the length of the accommodating cavity 11 is slightly longer than that of the hair-planting seat 33, and the hair-planting seat 33 is connected in the accommodating cavity 11 in a sliding manner. As shown in fig. 1-3, in order to improve the stability and the installation convenience of the whole output shaft assembly 4, a structure of a bushing 8 is added, the whole output shaft assembly 4 is sleeved in the bushing 8, the other end of the housing 1 is a fixing portion 13, and the bushing 8 is clamped in the fixing portion 13.

As shown in fig. 1 and 5, in order to facilitate the disassembly and assembly of the entire structure, the casing 1 is divided into a bottom case 12 and a cover 14, insertion posts 121 inserted and matched with the cover 14 are disposed on two sides of the brush holder 3 in the bottom case 12, a limiting groove 122 for sliding the brush holder 3 is formed between the two insertion posts 121, the insertion posts 121 not only allow the casing 1 and the cover 14 to form a connection relationship of insertion and matching, but also can limit the sliding direction of the brush holder 3 through the limiting groove 122, so that the brush holder 3 can only slide and match along the length direction thereof, thereby ensuring the stability of the operation of the brush holder 3. After the cover body 14 is opened, the brush holder 3 and the driven gear 6 structure can be taken out, and the bush 8 is ejected out from the fixing part 13 by using a tool, so that the disassembly and the assembly of parts are realized, and the maintenance and the replacement are convenient. In addition, in order to increase the stability of the brush holder 3 performing only linear reciprocating motion, the bottom of the bottom case 12 may further be provided with a through slot 15, and the bottom of the handle rod 32 is provided with a sliding strip 34 slidably fitted with the through slot 15, so that the sliding strip 34 is limited in the through slot 15, and the brush holder 3 may only perform linear reciprocating motion, thereby improving the stability of the brush holder 3 performing only linear reciprocating motion.

The working process of the embodiment after the rotary electric toothbrush body is installed is as follows: the rotating head 431 on the transmission sleeve 43 obtains the rotating power from the body of the rotary electric toothbrush, transmits the rotating power to the cutting sleeve 42 and the rotating shaft 41, transmits the rotating power to the driven gear 6 meshed with the rotating shaft 41 through the driving gear 5 on the rotating shaft 41, and then enables the rotating power to be changed into the branch reciprocating motion of the handle rod 32 through the matching of the eccentric meshing pin 61 on the driven gear 6 and the slender cam hole 31 on the handle rod 32, namely the hair-planting base 33 is enabled to do the linear reciprocating motion in the accommodating cavity 11, namely the brush teeth motion of the brush hair 2 on the hair-planting base 33 is enabled to form the linear reciprocating motion, thereby achieving the expected effect.

Claims

1. An electric toothbrush head, comprising a shell (1) and bristles (2), characterized in that: be equipped with brush holder (3), output shaft subassembly (4) in casing (1), be fixed in driving gear (5) on output shaft subassembly (4), driven gear (6) with driving gear (5) meshing, the axle center mutually perpendicular of driving gear (5) and driven gear (6), driven gear (6) rotate to be connected in casing (1), brush holder (3) slide with drain pan (12) and are connected, brush holder (3) one end is planted brush hair (2), the other end be provided with brush holder (3) length direction vertically long and thin cam hole (31), the eccentric position of driven gear (6) is equipped with meshing round pin (61) that extend to in cam hole (31).

2. An electrically powered toothbrush head according to claim 1 wherein: output shaft subassembly (4) are including pivot (41), cutting ferrule (42), transmission cover (43), pivot (41) are used for fixed driving gear (5), cutting ferrule (42) cup joint and fix on pivot (41), transmission cover (43) cup joint each other and can follow pivot (41) axial direction and slide each other with cutting ferrule (42), are provided with elastic component (7) between transmission cover (43) and cutting ferrule (42).

3. A powered toothbrush head according to claim 2 wherein: the utility model discloses a slip joint, including transmission cover (43), cover (432), cover (42), pivot (41), clamping jaw (433) that the other end is sleeve (432), and the circumference distributes on sleeve (432) has a plurality of outside extension, clamping sleeve (42) one end cup joints fixedly with pivot (41), and the other end is cup jointed portion (421), be equipped with on the cup joint portion (421) with clamping jaw (433) the same groove (422) that slides of quantity, the length direction and the pivot (41) length direction of groove (422) that slides set up the same, radial joint in groove (422) slides in clamping jaw (433), and clamping jaw (433) with slide groove (422) and be connected in axial direction slides, elastic component (7) set up in sleeve (432), elastic component (7) both ends butt respectively on sleeve (432) and clamping sleeve (42).

4. An electrically powered toothbrush head according to claim 1 or claim 2 wherein: brush holder (3) include handle pole (32) and plant the planting hair seat (33) of brush hair (2), casing (1) one end is equipped with and is used for holding the holding chamber (11) of planting hair seat (33), the length of holding chamber (11) is slightly longer than the length of planting hair seat (33), it slides and connects in holding chamber (11) to plant hair seat (33).

5. An electrically powered toothbrush head according to claim 4 wherein: one end of the handle rod (32) is detachably connected with the hair-planting seat (33), and the other end is provided with the cam hole (31).

6. An electrically powered toothbrush head according to claim 5 wherein: the one end of planting hair seat (33) brush hair (2) dorsad is equipped with a plurality of joint post (331), be equipped with card hole (321) the same with joint post (331) quantity on brush holder (3), card hole (321) and joint post (331) joint.

7. An electrically powered toothbrush head according to claim 4 wherein: the other end of casing (1) is fixed part (13), joint has bush (8) in fixed part (13), bush (8) and output shaft subassembly (4) fixed connection.

8. An electrically powered toothbrush head according to claim 1 wherein: the shell (1) comprises a bottom shell (12) and a cover body (14), wherein insertion columns (121) which are in insertion fit with the cover body (14) are arranged on two sides of the brush holder (3) in the bottom shell (12), and a limiting groove (122) for the brush holder (3) to slide is formed between the two insertion columns (121).

9. A powered toothbrush head according to claim 2 wherein: the elastic piece (7) is a spring.