阅读说明：本技术 一种新型超声波洁牙装置 (Novel ultrasonic tooth cleaning device ) 是由 王振 赵争锋 刘通 于 2019-12-20 设计创作，主要内容包括：本发明涉及口腔清洁装置技术领域,尤其涉及一种新型超声波洁牙装置,包括工具头以及与工具头固定连接的超声波换能器,所述超声波换能器包括中间板,所述中间板设置有至少一个压电陶瓷片,所述工具头连接有可拆卸的牙刷头或洁牙头,所述超声波换能器的振动频率范围介于10千赫兹到100千赫兹之间。本发明可兼用牙刷头和洁牙头的安装使用,利用成熟的压电陶瓷双晶片结构作为超声波换能器,使振动频率保持在10千赫兹到100千赫兹,确保良好的洁牙效果,可大幅降低生产成本。(The invention relates to the technical field of oral cleaning devices, in particular to a novel ultrasonic tooth cleaning device which comprises a tool head and an ultrasonic transducer fixedly connected with the tool head, wherein the ultrasonic transducer comprises a middle plate, the middle plate is provided with at least one piezoelectric ceramic piece, the tool head is connected with a detachable toothbrush head or tooth cleaning head, and the vibration frequency range of the ultrasonic transducer is between 10 kilohertz and 100 kilohertz. The invention can be used for installing a toothbrush head and a tooth cleaning head at the same time, and utilizes a mature piezoelectric ceramic double-wafer structure as an ultrasonic transducer to keep the vibration frequency between 10 KHz and 100 KHz, thereby ensuring good tooth cleaning effect and greatly reducing the production cost.)

1. A novel ultrasonic tooth cleaning device is characterized in that: including the instrument head and with instrument head fixed connection's ultrasonic transducer, ultrasonic transducer includes middle board, middle board is provided with at least one piezoceramics piece, the instrument head is connected with detachable toothbrush head or tooth cleaning head, ultrasonic transducer's vibration frequency range is between 10 kilohertz to 100 kilohertz.

2. A novel ultrasonic dental cleaning device according to claim 1, wherein: the tail end of the tool head is provided with an installation slot position, and the tool head is connected with the middle plate in a clamping mode through the installation slot position.

3. A novel ultrasonic dental cleaning device according to claim 1, wherein: the head end of the tool head is provided with a protruding platform, and the toothbrush head is provided with a pit clamped with the protruding platform.

4. A novel ultrasonic dental cleaning device according to claim 1, wherein: the outside of instrument head is provided with the external screw thread, clean tooth head is provided with the internal thread with the external screw thread spiro union.

5. A novel ultrasonic dental cleaning device according to claim 1, wherein: the intermediate plate is made of stainless steel, aluminum, brass or steel metal materials.

6. A novel ultrasonic dental cleaning device according to claim 1, wherein: the intermediate plate is made of nonmetal materials of an electronic circuit board, a glass fiber plate or a carbon fiber plate.

Technical Field

The invention relates to the technical field of oral cleaning devices, in particular to a novel ultrasonic tooth cleaning device.

Background

The conventional toothbrush is generally actively brushed up and down in the tooth cleaning operation mode, namely vertically brushed, the electric toothbrush is relatively fixed in vibration frequency and vibration force, the electric toothbrush is similar to a horizontal brush on the tooth surface during rotation, and certain abrasion can be caused to the teeth. In recent years, sound wave toothbrushes and ultrasonic wave toothbrushes appear in the market, the sound wave toothbrush is actually an electric toothbrush, the vibration frequency of the sound wave toothbrush is higher than that of the electric toothbrush, and can reach 670 Hz, the cleaning effect of the sound wave toothbrush is between that of the electric toothbrush and that of the ultrasonic wave toothbrush, and the sound wave toothbrush is slightly better than that of a common toothbrush and that of the electric toothbrush. The ultrasonic toothbrush is developed by utilizing an ultrasonic technology, ultrasonic energy is transmitted through an ultrasonic transducer, and cavitation effect is generated at periodontal by utilizing the ultrasonic energy, so that the purpose of removing periodontal germs and impurities is achieved. However, the existing ultrasonic toothbrush mainly appears in the developed national market, the price is high, the generated ultrasonic frequency is high, the power density is low, the critical point of the cavitation effect is difficult to achieve, and the effect of cleaning teeth by ultrasonic is difficult to achieve.

Disclosure of Invention

The invention aims to provide a novel ultrasonic tooth cleaning device which can be used for mounting a toothbrush head and a tooth cleaning head, utilizes a mature piezoelectric ceramic double-wafer structure as an ultrasonic transducer, keeps the vibration frequency between 10 kilohertz and 100 kilohertz, ensures good tooth cleaning effect and can greatly reduce the production cost.

In order to achieve the above purpose, the novel ultrasonic tooth cleaning device of the present invention comprises a tool head and an ultrasonic transducer fixedly connected with the tool head, wherein the ultrasonic transducer comprises a middle plate, the middle plate is provided with at least one piezoelectric ceramic plate, the tool head is connected with a detachable toothbrush head or tooth cleaning head, and the vibration frequency range of the ultrasonic transducer is between 10 khz and 100 khz.

Preferably, the tail end of the tool head is provided with an installation slot, and the tool head is clamped with the middle plate through the installation slot.

Preferably, the head end of the tool head is provided with a protruding table, and the toothbrush head is provided with a concave pit clamped with the protruding table.

Preferably, the outer side of the tool head is provided with an external thread, and the dental cleaning head is provided with an internal thread screwed with the external thread.

Preferably, the intermediate plate is made of a metal material such as stainless steel, aluminum, brass or steel.

Preferably, the intermediate plate is made of a non-metallic material such as an electronic circuit board, a glass fiber plate or a carbon fiber plate.

The invention has the beneficial effects that: the novel ultrasonic tooth cleaning device comprises a tool head and an ultrasonic transducer fixedly connected with the tool head, wherein the ultrasonic transducer comprises a middle plate, at least one piezoelectric ceramic piece is arranged on the middle plate, the tool head is connected with a detachable toothbrush head or a tooth cleaning head, and the vibration frequency range of the ultrasonic transducer is between 10 kilohertz and 100 kilohertz.

The ultrasonic transducer mainly comprises an intermediate plate and piezoelectric ceramic pieces, wherein the two piezoelectric ceramic pieces are respectively bonded on the upper surface and the lower surface of the intermediate plate, the intermediate plate plays a role in stabilizing and reinforcing the piezoelectric ceramic pieces in a bonding mode so as to enhance the working reliability of the piezoelectric ceramic pieces and prevent the piezoelectric ceramic pieces from being broken easily, and the ultrasonic transducer and a tool head are fixedly connected into the ultrasonic tooth cleaning device in a bonding or welding mode. The piezoelectric ceramic piece has electrostrictive property, and when an alternating power electric signal is applied to the piezoelectric ceramic piece, the piezoelectric ceramic piece can correspondingly extend or shorten in the length direction. When the ultrasonic tooth cleaning device is connected and fixed with a toothbrush head, the ultrasonic tooth cleaning device transmits ultrasonic energy to bristles of the toothbrush head, and generates a cavitation effect on the bristle tips to achieve the purpose of removing periodontal germs and impurities; when the ultrasonic tooth cleaning device is fixedly connected with the tooth cleaning head, the ultrasonic tooth cleaning device transmits ultrasonic energy to the tooth cleaning head tip, when the tooth cleaning head tip is contacted with teeth, the friction between the tooth cleaning head tip and the teeth can clean out the weight impurities such as tartar, and in addition, the material of the tooth cleaning head is a metal material, such as stainless steel, titanium alloy and the like, and a more violent cavitation effect is generated on the tooth cleaning head tip relative to bristles so as to remove the stubborn impurities. In the actual tooth cleaning test, it is concluded that when the ultrasonic tooth cleaning device is provided with a tooth cleaning head, the amplitude is large between 10 KHz and 30 KHz, so that the ultrasonic tooth cleaning device can be used for cleaning intractable tartar and has a good cleaning effect on heavy tartar; when the ultrasonic tooth cleaning device is provided with a brush head, it has a good cleaning effect on periodontal germs and impurities at a vibration frequency of 60 kHz to 100 kHz. In an actual tooth cleaning test, it was also found that the lengths, widths, and thicknesses of the intermediate plate and the piezoelectric ceramic plate greatly affect the frequency and tooth cleaning effect of the ultrasonic tooth cleaning device, and the ultrasonic tooth cleaning device for different purposes can be manufactured by adjusting and using the intermediate plate and the piezoelectric ceramic plate having different lengths, widths, and thicknesses in combination. The invention can be used for installing a toothbrush head and a tooth cleaning head at the same time, and utilizes a mature piezoelectric ceramic double-wafer structure as an ultrasonic transducer to keep the vibration frequency between 10 KHz and 100 KHz, thereby ensuring good tooth cleaning effect and greatly reducing the production cost.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially exploded view of the present invention.

Fig. 3 is another partially exploded view of the present invention.

Fig. 4 is a schematic structural view of the tooth cleaning head used in cooperation with the present invention.

FIG. 5 is a schematic top view of a dental cleaning head according to the present invention.

Fig. 6 is a schematic sectional view along a-a in fig. 5.

Figure 7 is a schematic view of the construction of the toothbrush head of the present invention in use.

Figure 8 is a schematic top view of a toothbrush head incorporating the present invention.

Fig. 9 is a schematic sectional structure view taken along the direction B-B in fig. 8.

The reference numerals include:

1-tool head 2-ultrasonic transducer 3-middle plate

4-piezoelectric ceramic piece 5-toothbrush head 6-tooth cleaning head

7-mounting slot position 8-protruding platform 9-pit

10-external thread 11-internal thread.

Detailed Description

The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1 to 9, the novel ultrasonic tooth cleaning device of the present invention comprises a tool head 1 and an ultrasonic transducer 2 fixedly connected to the tool head 1, wherein the ultrasonic transducer 2 comprises a middle plate 3, the middle plate 3 is provided with at least one piezoelectric ceramic plate 4, the tool head 1 is connected to a detachable toothbrush head 5 or tooth cleaning head 6, and the vibration frequency of the ultrasonic transducer 2 ranges from 10 khz to 100 khz.

The ultrasonic transducer 2 mainly comprises an intermediate plate 3 and piezoelectric ceramic pieces 4, the two piezoelectric ceramic pieces 4 are respectively bonded on the upper surface and the lower surface of the intermediate plate 3, the intermediate plate 3 plays a role in stabilizing and reinforcing the piezoelectric ceramic pieces 4 in a bonding mode so as to enhance the working reliability of the piezoelectric ceramic pieces 4 and prevent the piezoelectric ceramic pieces 4 from being broken easily, and the ultrasonic transducer 2 and the tool head 1 are fixedly connected into the ultrasonic tooth cleaning device in a bonding or welding mode. The piezoelectric ceramic plate 4 has electrostrictive properties, and when an alternating power electric signal is applied to the piezoelectric ceramic plate 4, the piezoelectric ceramic plate 4 correspondingly extends or shortens in the length direction. The ultrasonic tooth cleaning device is bonded with two piezoelectric ceramic plates 4 with opposite polarities, when power electric signals are applied to the two piezoelectric ceramic plates 4, the two piezoelectric ceramic plates 4 are asynchronously stretched or shortened and deformed in the length direction, so that vibration of the tool head 1 is caused, when the ultrasonic tooth cleaning device is connected and fixed with the toothbrush head 5, the ultrasonic tooth cleaning device transmits ultrasonic energy to bristles of the toothbrush head 5, and a cavitation effect is generated on the bristle tips to achieve the purpose of cleaning germs and unclean objects at periodontal; when the ultrasonic tooth cleaning device is fixedly connected with the tooth cleaning head 6, the ultrasonic tooth cleaning device transmits ultrasonic energy to the tip of the tooth cleaning head 6, when the tip of the tooth cleaning head 6 is contacted with teeth, the weight impurities such as tartar can be cleaned by the friction between the tip of the tooth cleaning head 6 and the teeth, in addition, the material of the tooth cleaning head 6 is a metal material, such as stainless steel, titanium alloy and the like, and a more violent cavitation effect is generated on the tip of the tooth cleaning head 6 relative to bristles so as to remove stubborn impurities. The ultrasonic wave generally refers to the sound wave with the vibration frequency exceeding 20 kilohertz, and in the actual tooth cleaning test, the vibration frequency between 10 kilohertz and 30 kilohertz is large when the ultrasonic tooth cleaning device is provided with the tooth cleaning head 6, so that the ultrasonic tooth cleaning device can be used for cleaning intractable tartar and has a good cleaning effect on the heavy tartar; when the ultrasonic tooth cleaning device is provided with the brush head 5, it has a good cleaning effect on periodontal germs and impurities at a vibration frequency of 60 kHz to 100 kHz. In the actual tooth cleaning test, it was also found that the lengths, widths, and thicknesses of the intermediate plate 3 and the piezoelectric ceramic plate 4 have a large influence on the frequency and tooth cleaning effect of the ultrasonic tooth cleaning device, and the ultrasonic tooth cleaning device for different purposes can be manufactured by adjusting and using the intermediate plate 3 and the piezoelectric ceramic plate 4 having different lengths, widths, and thicknesses in combination. The invention can be used for installing the toothbrush head 5 and the tooth cleaning head 6, and uses a mature piezoelectric ceramic double-wafer structure as the ultrasonic transducer 2, so that the vibration frequency is kept between 10 KHz and 100 KHz, good tooth cleaning effect is ensured, and the production cost can be greatly reduced.

As shown in fig. 1, 2 and 3, the end of the tool head 1 of the present embodiment is provided with an installation slot 7, and the tool head 1 is clamped with the middle plate 3 through the installation slot 7. Specifically, the tool head 1 is connected to the middle plate 3 in a clamping manner through the mounting groove 7, and then the connection stability of the connection part between the tool head 1 and the middle plate 3 is enhanced through welding or glue bonding, so that the overall structural strength is improved, and the ultrasonic tooth cleaning device is formed.

As shown in fig. 7, 8 and 9, the head end of the tool head 1 of this embodiment is provided with a protruding step 8, and the toothbrush head 5 is provided with a concave pit 9 which is engaged with the protruding step 8. Specifically, the tool head 1 comprises a protruding platform 8, the toothbrush head 5 comprises a concave pit 9, and when the tool head 1 is assembled, the protruding platform 8 and the concave pit 9 of the toothbrush head 5 are tightly matched and clamped to realize the connection and fixation of the ultrasonic tooth cleaning device and the toothbrush head 5.

As shown in fig. 4, 5 and 6, the tool head 1 of the present embodiment is provided with an external thread 10 on the outside thereof, and the dental head 6 is provided with an internal thread 11 screwed with the external thread 10. Specifically, the tool head 1 comprises an external thread 10, the dental scaler head 6 comprises an internal thread 11, and when the tool head 1 is assembled, the external thread 10 is in threaded fit with the internal thread 11 of the dental scaler head 6 to realize the connection and fixation of the ultrasonic dental scaler device and the dental scaler head 6.

As shown in fig. 1, the intermediate plate 3 of the present embodiment is made of a metal material of stainless steel, aluminum, brass, or steel. Specifically, the piezoelectric ceramic plates 4 have positive and negative polarities, and when the intermediate plate 3 is made of a metal material, such as stainless steel, aluminum, brass, or steel, the two piezoelectric ceramic plates 4 are respectively bonded to the intermediate plate 3 by using surfaces with different polarities to be electrically connected.

As shown in fig. 1, the intermediate plate 3 of the present embodiment is made of a non-metallic material such as an electronic circuit board, a glass fiber plate, or a carbon fiber plate. Specifically, when the intermediate plate 3 is made of a non-metal material, such as an electronic circuit board, a glass fiber plate, or a carbon fiber plate, when the intermediate plate 3 is made of a non-metal material, electrical connection can be achieved by using a crossover wire or by using an internal electrode.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.