CN106473820B

CN106473820B - Integrated micro-sand blasting head

Info

Publication number: CN106473820B
Application number: CN201611085138.1A
Authority: CN
Inventors: 唐雷斌; 金涛; 唐家立
Original assignee: Guilin Yikeshi Machinery Manufacturing Co ltd
Current assignee: GUILIN XPEDENT MEDICAL EQUIPMENT CO.,LTD.
Priority date: 2016-11-30
Filing date: 2016-11-30
Publication date: 2022-02-22
Anticipated expiration: 2036-11-30
Also published as: CN106473820A

Abstract

The invention discloses an integrated micro-sand blasting head, which comprises a sand blasting body, wherein an inner cavity for bearing sand grains comprises a spherical platform cavity formed by hemispherical platform cavities which are symmetrical up and down, the front part of the sand blasting body is provided with a jack which is positioned on a central line of a symmetrical surface and communicated with the spherical platform cavity, the rear part of the sand blasting body is connected with an inserted air pipe, an air pipe hole of the inserted air pipe is positioned on the central line of the symmetrical surface and communicated with the spherical platform cavity, a sand blasting pipe with the inner end inserted into the inner cavity of the sand blasting body and capable of being inserted into the air pipe hole and the outer end arranged outside the sand blasting body is inserted into the jack, and the sand blasting pipe is provided with a plug which opens the air pipe hole to close the jack when sand blasting is carried out and closes the air pipe hole to open the jack when sand blasting is stopped. The invention integrates the sand-blasting body, the inserted air pipe and the sand-blasting pipe into a whole, has small structure and convenient operation, can effectively prevent sand from being affected with damp, can be thoroughly sterilized, and can be directly suitable for the air supply pressure of the mobile phone tail wire of the dental chair.

Description

Integrated micro-sand blasting head

Technical Field

The invention relates to a tooth cleaning medical instrument, in particular to an integrated micro-sand blasting head.

Background

The sand-blasting tooth-washing method is to use special sand-blasting tooth powder to be sprayed to the tooth surface through a spray head of a hand-held micro-blasting machine to remove dental plaque and pigment.

The traditional structure of the hand-held micro-blasting sand blasting machine comprises a hand-held sleeve, a sand bottle is installed on the bottom of the hand-held sleeve, a nozzle is installed at the front end of the hand-held sleeve and is controlled to be opened and closed by a sand blasting machine valve, a pipeline at the rear end of the hand-held sleeve is connected with an air pressure device with the air pressure of 0.4 MPa-0.7 MPa through a three-way joint, and the working principle is as follows: in the ventilation process, the sand blasting machine (between the nozzle and the valve of the sand blasting machine) generates pressure difference to enable the interior of the sand bottle to generate negative pressure, external atmospheric pressure is filled into the bottle from two small holes on the bottle cap of the sand bottle, the internal and external atmospheric pressures of the bottle reach the same pressure, and sand grains are sprayed out from the nozzle under the action of the negative pressure to achieve the sand blasting effect.

The handheld micro-blasting sand blasting machine has the following defects:

1. the valve of the sand blasting machine is too close to the nozzle, so that the sand blasting machine cannot enter the deep part of the oral cavity, and the operation is inconvenient.

2. The required pressure (0.4 MPa-0.7 MPa) is too high, so that the dental chair mobile phone tail line cannot be directly connected (the pressure of the dental chair is less than or equal to 0.4MPa), and an additional air source or pressure reduction is required for use.

3. The sand blasting is not uniform, and the sand grains are in irregular shapes and have small weight errors, and the sand grains are extracted due to pressure difference, so that the extraction amount of the sand grains is different along with the pressure change.

4. The bottle cap of the sand bottle is provided with two small holes which can not completely seal sand grains in the bottle, and the sand grains are exposed in the air and are easy to be damped.

5. The sand leakage phenomenon is serious. When blasting is stopped (aeration is stopped), a lot of sand grains are stored at the nozzle to cause leakage.

6. Due to the complex internal structure, the disinfection is not easy to disassemble.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an integrated micro-sand blasting head which has a simple structure, is convenient to use, is easy to disinfect and can keep sand grains from being wet.

The integrated micro-sand blasting head comprises a sand blasting body, wherein an inner cavity for bearing sand grains comprises a spherical table cavity formed by upper and lower symmetrical hemispherical table cavities, the front part of the sand blasting body is provided with a jack which is positioned on a central line of a symmetrical surface and communicated with the spherical table cavity, the rear part of the sand blasting body is connected with an inserted air pipe, an air pipe hole of the inserted air pipe is positioned on the central line of the symmetrical surface and communicated with the spherical table cavity, the inner end of the inserted air pipe is inserted into the inner cavity of the sand blasting body and can be inserted into the air pipe hole, the outer end of the inserted air pipe is arranged outside the sand blasting body, and the sand blasting pipe is provided with a plug which opens the air pipe hole to close the jack when sand blasting is carried out, and closes the air pipe hole to open the jack when sand blasting is stopped.

For the convenience of operation, the outer end of the sand blasting pipe is inclined towards one side of the symmetrical plane.

Conventionally, the deflection angle of the outer end of the blast pipe is no more than 30 °.

In order to adapt to the air supply pressure of 0.2-0.4 MPa (namely, the tail line of the dental chair mobile phone is directly connected through the inserted air pipe), the radius of the ball table cavity is 11.9-12.1 mm, the radius of the upper and lower circular table surfaces of the ball table cavity is 6.75-7.0 mm, and the distance between the upper and lower circular table surfaces is 11.7-12.0 mm.

In order to embody the integrated effect, the sand blasting body and the splicing air pipe are integrally manufactured.

The invention has the beneficial effects that:

1. the integrated micro-sand blasting head integrates the sand blasting body, the inserted air pipe and the sand blasting pipe, and can be directly suitable for the air supply pressure of the mobile phone tail wire of the dental chair through the design of the shape and the effective control of the size of the inner cavity of the sand blasting body.

2. The invention has small structure and is convenient for operation and use in the oral cavity of adults and children.

3. When the sand blasting machine is used, sand grains are completely sealed in the sand blasting body, and the sand grains are effectively prevented from being affected with damp.

4. The invention can be directly sterilized, and is clean and sanitary.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view a-a in the embodiment of fig. 1.

And (3) identifying the figure number: 1. sand blasting; 1-1, a table cavity; 1-2, a jack; 2. inserting an air pipe; 2-1, trachea holes; 3. a sand blasting pipe; 3-1, and plugging.

Detailed Description

The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

The integrated micro-sand blasting head comprises a sand blasting body 1, an inserted air pipe 2 and a sand blasting pipe 3, wherein the sand blasting body 1 and the inserted air pipe 2 are integrally manufactured as shown in figures 1 and 2.

The inner cavity of the sand blasting body 1 comprises a spherical platform cavity 1-1 formed by hemispherical platform cavities which are symmetrical up and down, the appearance of the sand blasting body 1 is matched with the inner cavity of the sand blasting body, the front part of the sand blasting body 1 is provided with a jack 1-2 positioned on the central line of the symmetrical plane, the jack 1-2 is communicated with the spherical platform cavity 1-1, and the air pipe hole 2-1 (positioned on the central line of the symmetrical plane) of the inserted air pipe 2 is communicated with the spherical platform cavity 1-1 at the rear part of the sand blasting body 1, as shown in figure 2.

The front end of the sand blasting pipe 3 is inclined (not more than 30 degrees) to one side of the symmetrical surface, the rear end of the sand blasting pipe 3 is inserted into the inner cavity of the sand blasting body 1 from the insertion hole 1-2, the insertion depth penetrates through the inner cavity and is inserted into the air pipe hole 2-1 of the inserted air pipe 2, the sand blasting pipe 3 is provided with a locally enlarged plug 3-1, and the plug 3-1 can be matched with the plug of the insertion hole 1-2 and the air pipe hole 2-1, as shown in figure 2.

The radius of the ball table cavity 1-1 is designed to be 11.9 mm-12.1 mm, the radius of the upper and lower circular table surfaces of the ball table cavity 1-1 is designed to be 6.75 mm-7.0 mm, and the distance between the upper and lower circular table surfaces is designed to be 11.7 mm-12.0 mm so as to adapt to the air supply pressure (the air supply pressure of the tail wire of the dental chair mobile phone) of 0.2 MPa-0.4 MPa.

The working principle of the invention is as follows:

the splicing air pipe 2 is connected with an air source of 0.2 MPa-0.4 MPa, the sand blasting pipe 3 is pulled out of the sand blasting body 1 to a proper position, namely the plug 3-1 seals the jack 1-2, the air source is opened, pressure air enters the inner cavity of the sand blasting body 1, sand rotates in the inner cavity in a vortex mode along with the increase of pressure, and sand is sprayed out from the pipe hole of the sand blasting pipe 3 along with the pressure air, so that the sand blasting effect is achieved; the sand blasting pipe 3 is inserted into the sand blasting body 1 to a proper position, namely the plug 3-1 seals the air pipe hole 2-1 to stop sand blasting.

Claims

1. Integration trace sandblast head, its characterized in that:

the sand blasting device comprises a sand blasting body (1), wherein an inner cavity for bearing sand grains comprises a spherical platform cavity (1-1) formed by hemispherical platform cavities which are symmetrical up and down, the front part of the sand blasting body (1) is provided with a jack (1-2) which is positioned on a central line of a symmetrical plane and communicated with the spherical platform cavity (1-1), the rear part of the sand blasting body (1) is connected with an inserted air pipe (2), an air pipe hole (2-1) of the inserted air pipe (2) is positioned on the central line of the symmetrical plane and communicated with the spherical platform cavity (1-1), a sand blasting pipe (3) is inserted into the jack (1-2), the inner end of the sand blasting pipe is introduced into the inner cavity of the sand blasting body (1) and can be inserted into the air pipe hole (2-1), the outer end of the sand blasting pipe is arranged outside the sand blasting body (1), the sand blasting pipe (3) is provided with a plug (3) which opens the air pipe hole (2-1) to close the jack (1-2) when sand blasting is stopped, and opens the air pipe hole (2-1) to close the jack (3) when sand blasting is stopped -1);

the radius of the ball table cavity (1-1) is 11.9 mm-12.1 mm, the radius of the upper and lower round table surfaces of the ball table cavity (1-1) is 6.75 mm-7.0 mm, and the distance between the upper and lower round table surfaces is 11.7 mm-12.0 mm;

the plug-in air pipe (2) is connected with a 0.2 MPa-0.4 MPa air source of the dental chair mobile phone tail line;

the sand blasting body (1) and the splicing air pipe (2) are integrally manufactured.

2. The integrated micro blast head according to claim 1, wherein: the outer end of the sand blasting pipe (3) inclines towards one side of the symmetrical plane.

3. The integrated micro blast head according to claim 2, wherein: the deflection angle of the outer end of the sand blasting pipe (3) is not more than 30 degrees.