CN211633686U

CN211633686U - Special-shaped electric toothbrush

Info

Publication number: CN211633686U
Application number: CN202020177320.5U
Authority: CN
Inventors: 邵先杰; 张宝聪; 方玉玉; 张振; 郑朋会
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-10-09
Anticipated expiration: 2030-02-17

Abstract

The utility model discloses a dysmorphism electric toothbrush, it includes drive mechanism and toothbrush head, and drive mechanism is used for connecting motor and toothbrush head, for the rotatory transmission power of toothbrush head, and drive mechanism includes power output shaft, first transmission shaft, second transmission shaft, connecting rod, camber beam, miniature bearing, bevel gear and screw thread union joint. The toothbrush head is in columnar rotary motion. The toothbrush head and the transmission mechanism adopt a split type design, can be connected with the motor in an insertion mode and provide power. After being connected, the toothbrush head and the handle are bent at 90 degrees, so that the inner side and the outer side of the teeth can be conveniently cleaned. The combined design mode can ensure that the power part can be used for a long time, and the toothbrush head part can be conveniently replaced. Moreover, the utility model discloses can improve the cleanliness in the inside and outside both sides of tooth and the interdental space gap, especially can improve the clean effect of survey in the tooth by a wide margin, protect the tooth better.

Description

Special-shaped electric toothbrush

Technical Field

The utility model relates to the field of articles for daily use, in particular to a special-shaped electric toothbrush.

Background

According to the relevant statistical data, the current incidence rate of the decayed tooth in China is 45%, and the proportion of unhealthy periodontal in adults is as high as 97%. Periodontal disease is a disease that occurs after bacterial infection of the tissues around the teeth, such as connective tissue of tooth root, bone, gingiva and the like, and the bacterial infection is directly related to dental caries, which is caused by the poor cleaning condition of teeth in oral cavity. With most conventional toothbrushes and electric toothbrushes currently used, the structure thereof does not conform to the physiological characteristics of the human mouth. The traditional toothbrush can only brush the outer side of teeth, but the inner side of the teeth is difficult to brush, although people can see that the inner side of the teeth is brushed by the toothbrush, the traditional toothbrush has little effect due to the limitation of the physiological structures of oral cavity and the teeth, and the teeth are corroded and damaged due to long-term dirt collection and collection. Therefore, a novel toothbrush capable of brushing the inside and the outside of the teeth comprehensively is urgently needed to be designed according to the physiological structure characteristics of the teeth in the oral cavity of human beings.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems and the defects of the existing toothbrush, the utility model provides a special-shaped electric toothbrush which can scrub the inner side and the outer side of teeth, improve the cleanness of the inner side and the outer side of the teeth and the gaps between the teeth, and especially can greatly improve the cleaning effect of the inner side of the teeth.

In order to achieve the above object, the utility model provides a following technical scheme:

specifically, the utility model provides a special-shaped electric toothbrush, which comprises a toothbrush handle, a transmission mechanism and a toothbrush head;

the transmission mechanism comprises a power output shaft, a first transmission shaft, a second transmission shaft, a connecting rod, a curved beam, a miniature bearing, a bevel gear and a threaded movable joint, the toothbrush head comprises bristles and a toothbrush head core column, and the power output shaft, the first transmission shaft, the second transmission shaft and the toothbrush head core column are sequentially connected, so that the power output shaft drives the toothbrush head core column to rotate;

the first end of the power output shaft is connected with a motor arranged in the toothbrush handle, the second end of the power output shaft is provided with a square groove-shaped jack, and the first transmission shaft can be inserted into the square groove-shaped jack, so that the power output shaft outputs rotary power to the first transmission shaft;

the first end of the first transmission shaft is a square end part matched with the square groove-shaped jack, and the second end of the first transmission shaft is a first bevel gear connected with a second transmission shaft, so that the first transmission shaft transmits power to the second transmission shaft;

the second transmission shaft and the first transmission shaft are arranged at an included angle of 90 degrees, a first end of the second transmission shaft is provided with a second bevel gear matched with the first bevel gear of the first transmission shaft, a second end of the second transmission shaft is provided with a circular hole, threads are arranged in the circular hole, and the circular hole is fixedly connected with the brush head core column to enable the second transmission shaft to drive the brush head core column to rotate;

the connecting rod is wrapped outside the first transmission shaft and used for protecting and supporting the first transmission shaft, the first end part of the connecting rod is connected with the toothbrush handle and fixed by means of a threaded movable joint, and the threaded movable joint is sleeved at the lower part of the connecting rod;

the bent beam is wrapped outside the second transmission shaft and used for protecting and supporting the second transmission shaft, the bent beam is provided with a 90-degree bent angle, the first end of the bent beam is fixedly sleeved at the second end of the connecting rod, and the second end of the bent beam is connected with the brush head core column;

bristles on the toothbrush head are radially fixed on the toothbrush head core column according to an axial array, a metal shaft is arranged in the toothbrush head core column, threads are arranged on the metal shaft, and the metal shaft is fixed with the second transmission shaft through the threads.

Preferably, the connection rod is internally provided with a micro bearing support at the upper part and the lower part respectively, so as to ensure that the first transmission shaft can rotate flexibly.

Preferably, two ends of the inside of the bent beam are respectively provided with a micro bearing support so as to ensure that the second transmission shaft can flexibly rotate.

Preferably, the bending beam and the top end of the connecting rod are fixed by using a bolt.

Preferably, the lower end of the connecting rod has a protruding edge for preventing the threaded union from falling off.

Preferably, the power output shaft, the first transmission shaft and the second transmission shaft are made of metal materials.

Preferably, the connecting rods and the bending beam are made of hard plastic.

Preferably, the first end of the connecting rod is provided with a bolt, the toothbrush handle is provided with a bolt hole matched with the bolt, and the connecting rod can be inserted into the bolt hole of the toothbrush handle to prevent the connecting rod from rotating.

Preferably, the threaded union is internally provided with internal threads matched with external threads on the outer side of the toothbrush handle, and the threaded union can move up and down by means of threaded connection.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides a dysmorphism electric toothbrush is 90 contained angles settings between second transmission shaft and the first transmission shaft, and the brush hair on the toothbrush head is fixed on the first stem of brush according to the radial of axial array, can scrub the inside and outside of tooth, improves the cleanliness in the inside and outside both sides of tooth and the interdental space gap, especially can improve the clean effect of surveying in the tooth by a wide margin, protects the tooth better.

2. The utility model discloses a toothbrush head and drive mechanism adopt split type design, can be connected with the motor through the mode of pegging graft to provide power. After being connected, the toothbrush head and the handle are bent at 90 degrees, so that the inner side and the outer side of the teeth can be conveniently cleaned. The combined design mode can ensure that the power part can be used for a long time, and the toothbrush head part can be conveniently replaced.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the transmission mechanism of the present invention;

FIG. 3 is a schematic view of the toothbrush head of the present invention;

fig. 4 is a schematic perspective view of the power output shaft and the joint of the handle and the connecting rod of the present invention;

fig. 5 is a schematic perspective view of the first transmission shaft of the present invention; and

fig. 6 is a schematic perspective view of the connecting rod of the present invention.

The figures are labeled as follows:

1-toothbrush head; 2-bending the beam; 3-a connecting rod; 4-electric toothbrush handle; 5-a threaded union; 6-power output shaft; 7-a first transmission shaft; 8-a second drive shaft; 91-a first bevel gear; 92-a second bevel gear; 10-a micro bearing; 11-a bolt; 12-bristles; 13-a brush head stem; 14-a metal shaft; 41-bolt hole; 31-edge; 32-a latch; 61-square groove-shaped jacks; 71-square configuration.

Detailed Description

Exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The utility model provides a special-shaped electric toothbrush, as shown in figures 1 to 6, which comprises a transmission mechanism and a toothbrush head. The utility model discloses a toothbrush head and drive mechanism adopt split type design, can be connected with the motor through the mode of pegging graft to provide power. After being connected, the toothbrush head and the handle are bent at 90 degrees, so that the inner side and the outer side of the teeth can be conveniently cleaned. The combined design mode can ensure that the power part can be used for a long time, and the toothbrush head part can be conveniently replaced.

Specifically, the transmission mechanism comprises a power output shaft 6, a first transmission shaft 7, a second transmission shaft 8, a connecting rod 3, a bent beam 2, a threaded movable joint 5 and a miniature bearing 10. The toothbrush head comprises bristles 12 and a head stem 13. The power output shaft 6, the first transmission shaft 7, the second transmission shaft 8 and the brush head core column 13 are connected in sequence, so that the power output shaft 6 drives the brush head core column 13 to rotate.

One end of a power output shaft 6 is connected with a motor arranged in the handle, and the other end of the power output shaft is connected with a first transmission shaft 7 to output power; the lower part of the first transmission shaft 7 is connected with the power output shaft 6, and the other end of the first transmission shaft is connected with the second transmission shaft 8 to transmit power; one end of the second transmission shaft 8 is connected with the first transmission shaft 7, and the other end of the second transmission shaft is fixedly connected with the brush head core column of the toothbrush head to provide power for the rotation of the toothbrush head.

One end of the power output shaft 6 is connected with a motor arranged in the handle, and the other end is provided with a square groove-shaped jack 61 connected with the first transmission shaft.

Below the first drive shaft 7 is a square structure 71, and the square structure 71 can be inserted into the square groove-shaped insertion hole 61 of the power output shaft 6 to cause the power output shaft 6 to output rotational power to the first drive shaft 7.

The other end of the first transmission shaft 7 is provided with a first bevel gear 91, and the first bevel gear 91 can be connected with a second bevel gear 92 of the second transmission shaft 8, so that the first transmission shaft 7 transmits power to the second transmission shaft 8.

The other end of the second transmission shaft 8 is provided with a threaded hole, and a metal shaft 14 of the toothbrush head 1 is also provided with threads and can be inserted into the threaded hole of the second transmission shaft 8 to be screwed and fixed.

Connecting rod 3 and camber beam 2 are the rigid plastic material, are used for protecting respectively and support first back shaft and second back shaft, and connecting rod 3 and camber beam 2 respectively wrap up in first transmission shaft 7 and with the outside of secondary drive axle 8, and connecting rod 3 and camber beam 2 inside respectively have two miniature bearings to support, guarantee that first transmission shaft 7 and secondary drive 8 can the axle rotate in a flexible way. The lower end of the camber beam 2 can be sleeved at the upper end of the connecting rod 3 in a mode of expansion with heat and contraction with cold and is fixed by a bolt 11.

The connecting rod 3 is connected with the electric toothbrush handle 4 by means of a threaded union joint 5. The lower end of the connecting rod 3 is provided with a bolt 32, the electric toothbrush handle 4 is provided with a bolt hole 41 matched with the bolt 32, and the bolt 32 can be inserted into the bolt hole 41 and further fixed by means of the threaded union 5. The inner side of the threaded movable joint 5 is provided with an internal thread matched with the external thread on the outer side of the electric toothbrush handle 4, and the threaded movable joint 5 can be screwed on the electric toothbrush handle 4 to ensure that the connecting rod 3 is firmly connected with the electric toothbrush handle 4. The lower end of the connecting rod 3 is provided with a protruding edge 31, so that the threaded movable joint 5 does not fall off, and the threaded movable joint 5 can move up and down by virtue of threaded connection.

The toothbrush head 1 is designed into a cylinder shape, the bristles 12 on the toothbrush head are fixed on a toothbrush head core column 13 in a radial shape according to an axial array, a metal shaft 14 is arranged in the toothbrush head core column 13, and the metal shaft 14 is provided with threads and can be screwed and fixed in a threaded hole of the second transmission shaft 8.

The brush hairs 12 on the toothbrush head are fixed on the brush head core column 13 in a radial shape according to an axial array, so that the inner side and the outer side of the teeth can be scrubbed, the cleanness of the inner side and the outer side of the teeth and gaps among the teeth can be improved, especially the cleaning effect of the inner side of the teeth can be greatly improved, and the teeth can be better protected.

The electric toothbrush handle 4 does not belong to the patent claim, but for explaining the working mechanism of the utility model, the handle part is specially explained, the electric toothbrush handle 4 is internally provided with a high-speed motor, a rechargeable battery, a charger and an external plug, and the butt joint surface of the upper end and the connecting rod 3 is provided with a bolt hole 41 which can be connected with a bolt 32 arranged at the lower end of the connecting rod 3 to prevent the connecting rod 3 from rotating.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A special-shaped electric toothbrush is characterized in that: it comprises a toothbrush handle, a transmission mechanism and a toothbrush head;

2. The contoured electric toothbrush of claim 1, wherein: the inside of connecting rod respectively is provided with a miniature bearing from top to bottom and supports to guarantee first transmission shaft can rotate in a flexible way.

3. The contoured electric toothbrush of claim 1, wherein: two ends of the interior of the bent beam are respectively provided with a miniature bearing support so as to ensure that the second transmission shaft can flexibly rotate.

4. The contoured electric toothbrush of claim 1, wherein: the bent beam and the top end of the connecting rod are fixed through bolts.

5. The contoured electric toothbrush of claim 1, wherein: the lower end of the connecting rod is provided with a protruding edge, and the edge is used for preventing the thread movable joint from falling off.

6. The contoured electric toothbrush of claim 1, wherein: the power output shaft, the first transmission shaft and the second transmission shaft are made of metal materials.

7. The contoured electric toothbrush of claim 6, wherein: the connecting rod and the curved beam are made of hard plastics.

8. The contoured electric toothbrush of claim 5, wherein: the first end of the connecting rod is provided with a bolt, the toothbrush handle is provided with a bolt hole matched with the bolt, and the connecting rod can be inserted into the bolt hole of the toothbrush handle to prevent the connecting rod from rotating.

9. The contoured electric toothbrush of claim 8, wherein: the thread movable joint is internally provided with an internal thread matched with the external thread on the outer side of the toothbrush handle, and the thread movable joint can move up and down by means of threaded connection.