CN213552551U

CN213552551U - U-shaped electric toothbrush

Info

Publication number: CN213552551U
Application number: CN202021100423.8U
Authority: CN
Inventors: 欧军辉; 郑文强; 陈仕林
Original assignee: Guangdong Yunshangmei Technology Co ltd
Current assignee: Guangdong Yunshangmei Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-06-29
Anticipated expiration: 2030-06-15

Abstract

The utility model relates to an improved U-shaped electric toothbrush. The toothbrush comprises a toothbrush body and a U-shaped brush head, wherein a brush head driving mechanism is arranged on the inner side of the U-shaped brush head and comprises a first fixing frame, a second fixing frame, a first sound wave motor, a reduction gearbox, a gear and a rack, the first fixing frame is fixedly connected with a first side arm of the U-shaped brush head, the second fixing frame is fixedly connected with a second side arm of the U-shaped brush head, the first sound wave motor and the reduction gearbox are arranged on the second fixing frame, and the gear is meshed with the rack. The utility model discloses a brush head actuating mechanism can drive the U-shaped brush head and move the internal contraction fast and toward outer expansion to the drive surrounds and makes a round trip to brush teeth at tooth brush hair all around, thereby can wash tooth all around more fully. In addition, the utility model can transmit the vibration to the U-shaped brush head through the vibration shaft by another sound wave motor in the toothbrush body, so that the whole U-shaped brush head vibrates, thereby achieving the purpose of brushing teeth with high quality.

Description

U-shaped electric toothbrush

Technical Field

The utility model relates to the technical field of electric toothbrushes, in particular to a U-shaped electric toothbrush.

Background

The electric toothbrush is a new product appearing in recent years, the revolution in the field of oral health care has been raised abroad, and although the application of the electric toothbrush in China is not yet popularized, the electric toothbrush has been predicted by people, and the electric toothbrush becomes an important member of public health care products. The investigation shows that the electric toothbrush is more scientific and effective compared with the common toothbrush, can more thoroughly remove dental plaque and reduce gingivitis and gingival bleeding, and is a popular daily necessity in a plurality of countries in Europe and America at present.

The electric toothbrush rotates rapidly, so that the brush head generates high-frequency vibration to instantly decompose toothpaste into fine foam to deeply clean slits between teeth, and the vibration of the bristles can promote blood circulation in the oral cavity, thereby having unexpected massage effect on gum tissues.

The electric toothbrushes on the market basically rely on mechanical vibration for tooth cleaning, and the structural appearance of the electric toothbrushes is mainly the same as that of the conventional toothbrushes. Because the life of brush head is shorter, often need to be changed, consequently brush head and brush holder generally design into detachably, so that change brush head, power and automatically controlled subassembly all set up in the brush holder usually, output shaft and brush head mechanical connection on the brush holder, with the vibration of drive brush head, because electric toothbrush can produce the vibration in the use, still need be convenient for the dismouting between brush head and the brush holder in addition, consequently waterproof sealing between brush head and the brush holder handles technical difficulty in this field always, from this, can not set up the circuit connection between brush head and the brush holder usually.

However, the existing electric toothbrush structure has no big difference from the common toothbrush structure in appearance, a user needs to hold the brush handle by hand to brush teeth, the tooth brushing efficiency is low, the brushing is not clean, two hands cannot be liberated, and the electric toothbrush is especially not practical for people with inconvenient actions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can liberate user's both hands, brush teeth clean, brush teeth efficient U-shaped electric toothbrush.

The purpose of the utility model is realized like this:

a U-shaped electric toothbrush comprises a toothbrush body and a U-shaped toothbrush head, wherein a toothbrush head driving mechanism is arranged on the inner side of the U-shaped toothbrush head and comprises a first fixing frame, a second fixing frame, a conductive vibration transmission shaft sleeve assembly, a first sound wave motor, a reduction gearbox, a gear and a rack, the first fixing frame is fixedly connected with a first side arm of the U-shaped toothbrush head, the second fixing frame is fixedly connected with a second side arm of the U-shaped toothbrush head, the rack is arranged on the first fixing frame, the first sound wave motor and the reduction gearbox are arranged on the second fixing frame, the first sound wave motor is in transmission connection with the reduction gearbox, an output shaft of the reduction gearbox is in transmission connection with the gear, the gear is meshed with the rack, a circuit board, a second sound wave motor and a vibration shaft are arranged on the toothbrush body, the second sound wave motor drives the vibration shaft to vibrate, a conductive ring, the conductive vibration shaft sleeve assembly is arranged on the U-shaped brush head and is fixedly connected with the second fixing frame, and the vibration shaft is inserted into a shaft hole of the conductive vibration shaft sleeve assembly. The utility model discloses a first sound wave motor passes through reducing gear box drive gear and rotates, the gear drives rack level horizontal side-to-side slip, because the effort is mutual, the motion opposite direction of gear and rack, therefore, rack and gear drive the first side arm and the second side arm of U shape brush head respectively toward reverse slip, thereby drive the expansion and shrink about the both sides arm of U shape brush head, just at a high speed when first sound wave motor, during the reversal, just can make U type brush head control expansion and shrink fast in the oral cavity, realize transversely brushing the lateral wall of tooth, finally reach the effect of fully brushing teeth, it is effectual to brush teeth.

The utility model can be further improved as follows.

The first fixing frame is provided with a rack block, the rack block is provided with a long hole, the rack is arranged on the inner wall of the long hole, and the gear extends into the long hole and is meshed with the rack.

The conducting ring and the vibrating shaft are integrated through injection molding of high-strength plastic, so that insulation of the conducting ring and the vibrating shaft is achieved, and the conducting ring is reasonable in design and convenient to conduct.

The conductive vibration shaft sleeve assembly is formed by coaxially arranging a first conductive shaft sleeve and a second conductive shaft sleeve and integrally injection-molded, the first conductive shaft sleeve and the second conductive shaft sleeve are respectively and electrically connected with a first sound wave motor, and the design not only realizes insulation of the first conductive shaft sleeve and the second conductive shaft sleeve, but also has reasonable design, convenience in installation and conductivity.

The vibration shaft is inserted into the first conductive shaft sleeve and the second conductive shaft sleeve in sequence, the vibration shaft is abutted against the second conductive shaft sleeve and is electrically connected with the second conductive shaft sleeve, and the conductive ring is abutted against the first conductive shaft sleeve and is electrically connected with the first conductive shaft sleeve.

The middle part of the U-shaped brush head is provided with a connecting hole, and the conductive vibration transmission shaft sleeve assembly is arranged in the connecting hole.

The vibration shaft and the conducting ring are respectively electrically connected with the circuit board.

The utility model has the advantages as follows:

the utility model discloses a brush head actuating mechanism can drive the both sides arm of U-shaped brush head and move the shrink fast and toward outer expansion to the drive surrounds and makes a round trip to brush teeth about tooth brush hair, thereby can wash tooth all around more fully. In addition, the utility model can transmit the vibration to the U-shaped brush head through the vibration shaft by another sound wave motor in the toothbrush body, so that the whole U-shaped brush head vibrates, thereby achieving the purpose of brushing teeth with high quality.

Furthermore, the utility model discloses small, the quality is light, and the user uses the utility model discloses during electric toothbrush, contain the U-shaped brush head in the mouth to bite the U-shaped brush head, thereby liberation user's both hands, the utility model discloses be particularly suitable for the inconvenient people of action to brush teeth, for example child and old man.

Drawings

Fig. 1 is an exploded view of the U-shaped electric toothbrush of the present invention.

Fig. 2 is an exploded view of the present invention from another angle.

Fig. 3 is an exploded view of the U-shaped brush head of the present invention.

Fig. 4 is an exploded view of the toothbrush main body of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

In a first embodiment, as shown in fig. 1 to 4, a U-shaped electric toothbrush includes a toothbrush main body 12 and a U-shaped brush head 1, a brush head driving mechanism 20 is disposed on an inner side of the U-shaped brush head 1, the brush head driving mechanism 20 includes a first fixing frame 4, a second fixing frame 5, a conductive vibration transmission shaft sleeve assembly 6, a first sonic motor 2, a reduction box 3, a gear 7 and a rack, the first fixing frame 4 is fixedly connected with a first side arm of the U-shaped brush head 1, the second fixing frame 5 is fixedly connected with a second side arm of the U-shaped brush head 1, the rack is disposed on the first fixing frame 4, the first sonic motor 2 and the reduction box 3 are disposed on the second fixing frame 5, the first sonic motor 2 is in transmission connection with the reduction box 3, an output shaft 9 of the reduction box 3 is in transmission connection with the gear 7, the gear 7 is engaged with the rack, a circuit board 22 is disposed on the toothbrush main body, Second sound wave motor 21 and vibration axle 13, second sound wave motor 21 drive vibration axle 13 vibrates, be equipped with conducting ring 16 on the vibration axle 13, electric conduction vibration axle sleeve subassembly 6 is located on U-shaped brush head 1 to with second mount 5 fixed connection, vibration axle 13 inserts the shaft hole of electric conduction vibration axle sleeve subassembly 6.

As a more specific technical solution of the present invention.

The U-shaped brush head 1 is made of silica gel, an upper brush tooth groove 19 is arranged at the top of the U-shaped brush head 1, a lower brush tooth groove is arranged at the bottom of the U-shaped brush head 1, and brush bristles 18 are arranged on the inner side and the outer side of the upper brush tooth groove 19 and the lower brush tooth groove.

The middle part of the U-shaped brush head 1 is provided with a connecting hole 14, and the conductive vibration shaft sleeve assembly 6 is arranged in the connecting hole 14.

The first fixing frame 4 is provided with a rack block 8, the rack block 8 is provided with a long hole 17, the rack is arranged on the inner wall of the long hole 17, and the gear 7 extends into the long hole 17 and is meshed with the rack.

The conducting ring 16 and the vibration shaft 13 are integrally injection-molded by high-strength plastic.

The conductive vibration shaft sleeve assembly 6 is formed by coaxially arranging a first conductive shaft sleeve 61 and a second conductive shaft sleeve 62 and integrally injection-molded, and the first conductive shaft sleeve 61 and the second conductive shaft sleeve 62 are respectively and electrically connected with the first sound wave motor 2.

The first conductive sleeve 61 is electrically connected to the first acoustic wave motor 2 through a first conductive wire 10, and the second conductive sleeve 62 is electrically connected to the first acoustic wave motor 2 through a second conductive wire 11.

The vibration shaft 13 is inserted into the first conductive shaft sleeve 61 and the second conductive shaft sleeve 62 in sequence, the vibration shaft 13 is abutted against and electrically connected with the second conductive shaft sleeve 62, and the conductive ring 16 is abutted against and electrically connected with the first conductive shaft sleeve 61.

The utility model discloses a theory of operation is:

when a user uses the U-shaped electric toothbrush of the utility model to brush teeth, the user plugs the U-shaped brush head 1 into the mouth, then, the upper teeth and the lower teeth are respectively bitten into the upper tooth brushing grooves and the lower tooth brushing grooves, a user does not need to hold the toothbrush main body 12 with hands and then follow a switch on the toothbrush main body 12, the toothbrush main body 12 drives the U-shaped brush head 1 to brush teeth, the circuit board 22 controls the start of the second sound wave motor 21 and the first sound wave motor, the second sound wave motor 21 drives the whole U-shaped brush head 1 to vibrate at high frequency through the vibration shaft 13 and the conductive vibration shaft sleeve component 6 in sequence, so that the vibration tooth brushing is realized, meanwhile, the first sound wave motor drives the gear 7 to rotate in the positive direction through the reduction gearbox 3, the gear 7 drives the rack to slide to the right, the rack drives the first fixing frame 4 and the first side arm of the U-shaped brush head 1 to drive the rack to slide to the right, because the acting forces are mutual, the gear 7 drives the second fixing frame 5 and the second side arm of the U-shaped brush head 1 to slide leftwards. On the contrary, when the first sound wave motor drives the gear 7 to rotate reversely through the reduction gearbox 3, the rack drives the first fixing frame 4 and the first side arm of the U-shaped brush head 1 to slide leftwards, and the gear 7 drives the second fixing frame 5 and the second side arm of the U-shaped brush head 1 to slide rightwards due to mutual acting force.

Claims

1. A U-shaped electric toothbrush comprises a toothbrush main body and a U-shaped brush head, wherein a brush head driving mechanism is arranged on the inner side of the U-shaped brush head, and the U-shaped electric toothbrush is characterized in that the brush head driving mechanism comprises a first fixing frame, a second fixing frame, a conductive vibration transmission shaft sleeve assembly, a first sound wave motor, a reduction gearbox, a gear and a rack, the first fixing frame is fixedly connected with a first side arm of the U-shaped brush head, the second fixing frame is fixedly connected with a second side arm of the U-shaped brush head, the rack is arranged on the first fixing frame, the first sound wave motor and the reduction gearbox are arranged on the second fixing frame, the first sound wave motor is in transmission connection with the reduction gearbox, an output shaft of the reduction gearbox is in transmission connection with the gear, the gear is meshed with the rack, a circuit board, a second sound wave motor and a vibration shaft are, the vibration shaft is provided with a conducting ring, the conductive vibration shaft sleeve assembly is arranged on the U-shaped brush head and is fixedly connected with the second fixing frame, and the vibration shaft is inserted into a shaft hole of the conductive vibration shaft sleeve assembly.

2. The U-shaped electric toothbrush of claim 1, wherein the first holder has a rack block, the rack block has an elongated hole, the rack is disposed on an inner wall of the elongated hole, and the gear extends into the elongated hole and engages with the rack.

3. The U-shaped electric toothbrush of claim 1, wherein the conductive ring and the vibration shaft are injection molded as one piece of high strength plastic.

4. The U-shaped electric toothbrush of claim 1, wherein the conductive vibration sleeve assembly is formed by coaxially disposing a first conductive sleeve and a second conductive sleeve, and injection molding the first conductive sleeve and the second conductive sleeve into a single body, wherein the first conductive sleeve and the second conductive sleeve are electrically connected to the first sonic motor, respectively.

5. The U-shaped electric toothbrush of claim 4 wherein the vibration shaft is inserted into the first conductive sleeve and the second conductive sleeve in sequence, the vibration shaft abuts against and is electrically connected to the second conductive sleeve, and the conductive ring abuts against and is electrically connected to the first conductive sleeve.

6. The U-shaped electric toothbrush of claim 3, wherein a connection hole is formed in a middle portion of the U-shaped head, and the conductive vibration sleeve assembly is disposed in the connection hole.

7. The U-shaped electric toothbrush of claim 6, wherein the vibration shaft and the conductive ring are electrically connected to the circuit board, respectively.