WO2006125341A1

WO2006125341A1 - A dual inward-turning electric toothbrush

Info

Publication number: WO2006125341A1
Application number: PCT/CN2005/000720
Authority: WO
Inventors: Wei Jiang
Original assignee: Wei Jiang
Priority date: 2005-05-24
Filing date: 2005-05-24
Publication date: 2006-11-30

Abstract

A dual inward-turning electric toothbrush is provided and comprises a miniature motor, a brushholder having power source and a releasable brushhead at the forepart. In said brushhead, there are two brushhead shafts parallel to each other. One end of each shafts has a brushhead with brush member, and another end is fixed a gear. Two gears are meshed each other.One of the brushhead shafts detachably connects to the output end of the miniature motor. And the guardcover is located outward the brushhead. The said brushes are symmetrical on the section and the direction of the brushes around the two brushheads are vertical to each other.

Description

Double internal electric toothbrush

The invention relates to a daily life toothbrush, in particular to a double internal electric toothbrush driven by an independent power source. It is the toothbrush of choice for people with different ages to prevent dental disease, periodontal disease and maintain oral hygiene.

Background technique

Toothbrush is one of the indispensable teeth for people to prevent dental disease, periodontal disease, maintain oral hygiene, remove odor and use various types of toothpaste. Since toothbrushes play such an important role in people's daily lives, people usually use traditional toothbrushes made of brush handles and bristles. For decades, there are still quite a few people still using them, even though in the process. Repeatedly reminded by dental experts, and pointed out that the traditional toothbrush has various drawbacks such as incomplete cleaning of the fangs, severe wear of the gums and damage to the soft tissue of the gums. The manufacturers of toothbrushes also have the softness and hardness of the bristles. The length of the bristles has been improved according to the location and the distribution of the bristles. At the same time, some of the shapes of the brush shank have been modified to fit the teeth after the inlet of the bristles, and have been improved. To a certain positive effect, but due to the unreasonable design of the structure of the toothbrush, coupled with the unreasonable brushing method of reciprocating motion by intentional pressurization to increase the frictional force, the traditional toothbrush is not thoroughly cleaned, and the gums are separated from the root of the tooth. Still exists, which in turn causes the gums to bare to promote loose teeth and bury the periodontal period And risks of dental diseases. For the above reasons, various types of electric toothbrushes such as a wheeled electric toothbrush, a vibrating electric toothbrush, and an eccentric mechanism that pushes the brush head back and forth have appeared in recent years. In the patent application of the high-efficiency electric toothbrush of the patent application No. 02104914. 9, a roller brush composed of a roller brush sleeve and a mandrel, which is arranged on the brush head frame, is arranged on the roller brush cover. The bristles are distributed in a spiral shape, and the two spirals are opposite in direction, and the electric toothbrush is driven by three shafts and four gears. The electric toothbrush has obvious progress compared with the conventional electric toothbrush, and can be cleaned in the direction of the crevice of the teeth, and basically conforms to the customary way of brushing the teeth. However, since the two roller brushes are arranged in a squatting manner, they turn to the opposite direction. Therefore, there are safety hazards, especially when brushing the inner side of the teeth, the soft tissue of the mouth is often twisted into the auger-type roller brush, which makes people feel fearful and unwilling to accept; in addition, since the bristles are pressed and bent during brushing, Expanding to both sides will still hurt the soft tissues of the gums and cause them to be damaged to varying degrees. Moreover, due to its many components, complex structure, relatively large volume, difficult manufacturing and assembly processes, high cost and many other factors, it is difficult to promote and apply. As a result, most of the people in the country still use the toothbrush that is essentially a traditional brush to brush their teeth, but only choose the brand of toothpaste used.

Summary of the invention

The object of the present invention is to provide a simple structure, low cost, safe and reliable, convenient to use, and can completely remove the residue in the sulcus and the interdental joint without damaging the gums without changing the customary manner of brushing the teeth. Soft tissue, a small internal rotation electric toothbrush that has a small amount of enamel wear and has a certain health massage effect on the soft tissue around the gum, which is beneficial to prevent oral diseases and is easily accepted by people.

Another object of the present invention is to provide a double internal rotary electric toothbrush which is reasonably compact, small in size, suitable for oral containment, easy to assemble and easy to replace.

The technical solution of the present invention solves the technical problem, which is composed of a handle with a micro motor and a power supply therein, and a handle holder detachably disposed at a front end thereof, wherein the brush head handle is provided with two brush head shafts in parallel with each other. One end of the shaft is respectively provided with a brush head having bristles, and the other end is respectively provided with gears meshing with each other, one of the brush head shafts is movably connected with the output end of the micro motor, and a safety shield is arranged under the brush head.

The brush head is placed under the brush head cover, and the brush head cover is integrated with the brush head handle. The bristles on the brush head are symmetrically disposed on both sides in cross section, and the bristles on the two brush heads are disposed perpendicular to each other.

The cross-sectional width of the cross section of the brush head shield is such that the upper and lower teeth are sufficiently exposed to cover the upper and lower gingival parts.

One end of the brush head shaft passes through the sleeve cavity, and the drive shaft is inserted into the corresponding plug socket on the coupling through the connecting plug connector at the front end.

The gears on the brush head shaft are straight teeth, and the number of teeth of the two is equal.

The handle is provided with a push button switch, and both ends of the inner cavity are sealed by a sealing member. The safety shield is a grill made of stainless steel wire.

Compared with the prior art, the invention adopts two parallel brush head shafts, the bristles are symmetric on both sides and the bristles on the two brush heads are arranged perpendicularly to each other, and the bristles are rotated from the outside to the inside, and the brush head cover is provided on the upper side to prevent bristles. Expanding, and protecting a series of technical measures such as soft tissues and safety shields of the gums. At the same time, it has been proved by experiments that there is a complete residue in the teeth of the teeth, no damage to the soft tissue of the gums, and the vibration of the brush head has a certain massage on the soft tissues of the gums. Health care, play an active role in oral health care _: At the same time, due to the symmetrical arrangement of bristles on both sides, the structure is compact and small, suitable for oral accommodation, zero The utility model has the advantages of small components, simple structure, low cost, easy manufacture and assembly, safe and convenient use, mainly cleaning by high-speed rotation of the sulcus, no need of intentional pressure friction, small wear of the gums, etc. The customary way of brushing teeth is easy to accept and promote.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic front view showing the structure of the present invention.

Figure 2 is a schematic top plan view of the present invention.

Figure 3 is a partial enlarged view.

Figure 4 is a schematic cross-sectional view of the A-A of Figure 3;

detailed description

The embodiments of the present invention are described in detail with reference to the drawings, but are not limited by the embodiments.

1, 2, 3, 4 shows the structure of the electric toothbrush of the present invention, the handle 4, the handle 2 are injection molded by a non-toxic plastic or ABS engineering plastic, and the rated speed is 1600 rpm. The micro DC motor 11 is mounted on one end of the handle 4 via the motor bracket 10, and the 3 volt DC power source 13 at the other end is loaded into the power supply chamber 12, and the end cover 7 of the battery connection contact 14 is provided corresponding to the DC power source 13 therein. The sealing member 5 is mounted at one end of the grip 4, and the output end of the micro DC motor 11 passes through the sealing member 15, passes through the connecting socket on the coupling 16 and the end of the active brush head shaft 8 provided in the brush head handle 2. The connecting plug is movably connected, and the push button switch 3 is disposed on the handle 4; the front end of the brush head handle 2 is provided with a brush head cover 1 in which a plurality of brush head shafts 8 and 17 are arranged in parallel in the sleeve cavity 18; The head shaft 8 is a drive shaft and is inserted into a corresponding socket on the coupling 16 through a "ten"-shaped plug at the front end, and the spur gear 9 thereon meshes with the spur gear on the other brush shaft 17. , and the number of teeth is equal, the other end of the brush head shafts 8, 17 is in the same position as the brush head The corresponding part of the shield 1 is provided with Lycra nylon fiber bristles 6, which are symmetrically arranged on both sides in cross section, and the bristles 6 on the two brush heads are arranged perpendicularly to each other to facilitate compact structure, reduce volume, and ensure brushing quality. The cross section of the brush head cover 1' is formed so that the upper and lower teeth are fully exposed for cleaning, and the soft tissue of the upper and lower gums is covered, so that the soft tissues of the gums are protected from the bristles, and the safety shield 19 is A grill made of stainless steel wire is placed under the brush head shield 1 to make it safe to extend the bristles 6 to clean the teeth.

When the invention is used, when the button switch 3 is pressed, the brush head shaft 8 is rotated from the outside to the inside, that is, the bristles 6 are vertically cleaned along the sulcus. The driven shaft 17 is also driven by the driving shaft 8 from the lower teeth of the lower teeth. The seam is rotated from bottom to top, and the brushing person only needs to gently move the toothbrush back and forth like the traditional way of brushing teeth, mainly relying on the high-speed rotation of the micro motor 11 at 1360 rpm. The hair 6 cleans the residue in the tooth surface and the gingival sulcus. The soft tissue of the gum is protected. At the same time, due to the centrifugal force of the rotation, the brush head shield 1 massages the soft tissue around the gum to promote the blood circulation and facilitate the oral cavity. Health care; cleaning the inside of the teeth up and down in the same way. The double internal rotary electric toothbrush of the present invention is placed in the mouth without feeling uncomfortable. The brushed teeth are bright, the gaps are clean, and the gums are protected from damage, which helps prevent dental disease and periodontal disease.

Claims

Rights request

1. A double internal electric toothbrush comprising a micromotor (11), a power supply (13) grip (4) and a handleable handle (2) placed at a front end thereof, characterized in that Two brush head shafts (8), (17) are arranged in parallel with each other in the brush head handle (2), and one end of the shaft is respectively provided with a brush head having bristles (6), and the other ends are respectively provided with meshing with each other. The gear (9), one of the brush head shafts (8) is movably connected to the output end of the micro motor (11), and a safety shield (19) is disposed under the brush head.

2. A double internal electric toothbrush according to claim 1, wherein said brush head is placed under the brush head shield (1), and the brush head shield (1) is connected to the brush head handle (2). One.

3. The double internal electric toothbrush according to claim 1, characterized in that the bristles (6) on the brush head are symmetrically arranged on both sides in cross section, and the bristles on the two brush heads (6) Set to be perpendicular to each other.

A double-rotation electric toothbrush according to claim 1, wherein the cross-sectional width of the cross section of the head guard (1) is such that the upper and lower teeth are sufficiently exposed to cover the upper and lower gingival parts.

The double internal electric toothbrush according to claim 1, characterized in that one end of the brush head shafts (8), (17) passes through the sleeve cavity (18), and the drive shaft (8) passes through the front end. The connector plug is plugged into the corresponding socket on the coupling (16).

The double internal electric toothbrush according to claim 1, characterized in that the gears (9) on the head shafts (8), (17) are straight teeth, and the number of teeth of the two is equal.

The double internal electric toothbrush according to claim 1, characterized in that the handle (4) is provided with a push button switch (3), and both ends of the inner cavity pass through the sealing member (15), (5) ) Sealed.

A double internal electric toothbrush according to any one of claims 1-7, characterized in that said safety shield (19) is a grid made of stainless steel wire.