CN114391982B - Sand blasting tooth cleaning system and method - Google Patents

Abstract

The invention discloses a sand blasting tooth cleaning system, which at least comprises: a dental chair; a host; a foot switch; a powder bottle; a sand blasting handle; a suction device; the suction device comprises a suction device and a suction filtering device; the air inlet end of the powder bottle is communicated with the air passage system, the air outlet end of the powder bottle is communicated with the air passage channel in the sand blasting handle, and under the control of the foot switch, sand blasting powder in the powder bottle can be carried out by air in the air passage system and conveyed into the sand blasting handle; the gas circuit system comprises a pressure reducing valve, a gas-water separation device and an electromagnetic valve. Also disclosed is a method of grit blasting the prophy, including the preparation, starting, prophy, suction, ending, and the like. The sand blasting tooth cleaning system is provided with the gas-water separation device, so that the anti-blocking performance is greatly improved; the device is matched with a suction device, and can timely and effectively suck the splashes generated in the tooth cleaning process. The sand blasting tooth cleaning method not only has good tooth cleaning effect; and can timely and effectively absorb splashes in the tooth cleaning process, so as to keep the working environment clean and sanitary.

Description

Sand blasting tooth cleaning system and method

Technical Field

The invention relates to the field of oral medical equipment, in particular to a sand blasting tooth cleaning system and a sand blasting tooth cleaning method.

Background

At present, the modes applied to clinical tooth cleaning mainly comprise hand scraping treatment, ultrasonic tooth cleaning and sand blasting tooth cleaning, and are mainly used for removing dental calculus, dental plaque, tea scale, tobacco scale and the like attached to the surfaces of teeth.

The principle of sand-blast tooth cleaning is that high-speed flowing gas is used to drive tooth cleaning powder to form particle flow, and the particle flow is acted on the tooth surface by fine nozzle, so that the kinetic energy of the particle flow can be used to remove dental calculus and bacterial plaque on the tooth surface.

The sand-blasting tooth cleaning equipment generally comprises a tooth chair, a host machine and a sand-blasting handle, wherein the tooth chair is communicated with an external air source or a water source through an air line, the sand-blasting handle is handheld terminal equipment, an air path channel and a water path channel are arranged in the hand-held terminal equipment, the air path channel and the water path channel are respectively connected with the tooth chair through an air path system and a water path system, under the action of an air pump, compressed air can drive tooth cleaning powder to form particle flow, and the particle flow is sprayed out from a tiny nozzle of the sand-blasting handle through the air path channel to act on the tooth surface to clean teeth.

However, there are a number of problems with current grit blasted prophy systems:

(1) For a prophy sealer: in the working process, because the dentifrice powder is easy to agglomerate when contacting with water, the sand blasting handle is blocked, and the use is affected; the current solution to the problem is mainly to clean or dredge the nozzle of the sand blasting handle after the blockage occurs, and the cleaning or dredging is time-consuming and labor-consuming and has poor effect due to the small diameter of the nozzle (the pipe diameter is about 0.5-0.8 mm), so that the blockage problem cannot be really solved.

(2) For the tooth cleaning process: during the treatment, some splatter of water, blood, solid impurities, sand blasting powder, etc. may be generated, possibly even accompanied by viral oral aerosols. These splashes fly out of the patient's mouth, contaminating the surrounding environment, and require cleaning by doctors or staff after surgery; the current treatment method for the problem is as follows: the periphery of the oral cavity of the patient is covered with a piece of paper towel or thin cloth with holes, however, the mode only can prevent the splashes from adhering to the periphery of the oral cavity of the patient, and can not prevent the splashes from entering the surrounding environment or falling into the bodies of doctors and staff.

Therefore, there is a need to provide a completely new system for grit blasted prophy and at the same time solve the above problems.

Disclosure of Invention

The invention aims to provide a sand blasting tooth cleaning system and a sand blasting tooth cleaning method, which form a brand new sand blasting tooth cleaning system and can at least solve one of the problems.

According to one aspect of the present invention, there is provided a sand blast prophy system comprising at least:

the host is internally provided with a controller, an air path system and a water path system;

the foot switch is connected with the controller and used for controlling the air source to be input into the air circuit system;

The powder bottle is arranged on the host machine and used for containing sand blasting powder;

the sand blasting handle is connected with the air path system and the water path system of the host;

the suction device is matched with the sand blasting handle and is used for sucking splashes splashed out of the oral cavity;

the suction device comprises an aspirator arranged at the periphery of the oral cavity and a suction filter device connected with the aspirator;

the air inlet end of the powder bottle is communicated with the air passage system, the air outlet end of the powder bottle is communicated with the air passage channel in the sand blasting handle, and under the control of the foot switch, sand blasting powder in the powder bottle can be carried out by air in the air passage system and conveyed into the sand blasting handle;

the gas circuit system comprises a pressure reducing valve, a gas-water separation device and an electromagnetic valve, wherein the electromagnetic valve is electrically connected with the controller, one end of the pressure reducing valve is communicated with a gas source, the other end of the pressure reducing valve is communicated with the gas inlet end of the gas-water separation device, the gas outlet end of the gas-water separation device is connected with the gas inlet end of the electromagnetic valve, and the gas outlet end of the electromagnetic valve is communicated with the gas inlet end of the powder bottle.

Therefore, the invention provides a sand-blasting tooth-cleaning system with a brand new structure, the sand-blasting tooth-cleaning system is internally provided with a gas-water separation device for separating gas from water in a gas circuit system, compressed air is treated by the gas-water separation device, the compressed air containing moisture entering the gas circuit system can be separated from gas and water, the gas is easily discharged to an electromagnetic valve from the gas-water separation device, and the moisture can be remained in the gas-water separation device; in addition, the input of the air source is controlled through the foot switch, so that the air source is convenient to use, the sand blasting work can be directly realized through the foot switch, the applicability is strong, and the use requirement is met; more importantly, the device is also matched with a sucking device for sucking the splashes splashed from the oral cavity of the patient, and the sucking device can suck the splashes generated in the tooth cleaning process quickly, timely and effectively, block the splashes from the source, effectively avoid the splashes from flying out, and keep the working environment clean and sanitary.

In some embodiments, the aspirator includes at least:

the second body can be covered on the periphery of the oral cavity of a user, and a central opening through which the sand blasting handle can pass is formed in the middle of the second body;

a suction interface communicated with the second body and used for connecting a suction filter device;

the second body is internally provided with a suction channel and an opening communicated with the suction channel;

one end of the suction interface is communicated with the suction channel, and the other end is connected to the suction filtering device.

Therefore, the aspirator of the invention works in the following principle: when the sand blasting tooth cleaning is needed, the second body is covered on the periphery of the oral cavity, the central opening is aligned to the oral cavity, the suction interface is externally connected with the suction filter device, so that the suction channel forms negative pressure, a doctor can operate the sand blasting handle to clean the oral cavity of a patient, splashes generated in the tooth cleaning process can enter the suction channel from the opening of the square first body under the combined action of the air pressure of the outer side surface of the central opening and the negative pressure in the suction channel, and finally the splashes are sucked from the suction interface.

The aspirator has simple integral structure, convenient use and good effect, can not obstruct the progress of the tooth cleaning work, can absorb the splashes generated in the tooth cleaning process rapidly, timely and effectively, blocks from the source, effectively avoids the splashes from flying out, and keeps the clean and sanitary of the working environment.

In some embodiments, the gas-water separation device comprises at least:

the first shell is provided with a cavity;

the first interface is arranged on the first shell and communicated with the cavity, and is communicated with the air outlet end of the pressure reducing valve and configured to input the air containing moisture into the cavity;

a separator, mounted in the cavity, configured to separate gas from water from the gas containing moisture entering the first housing;

the second interface is arranged on the first shell and communicated with the cavity, is connected with the air inlet end of the electromagnetic valve and is configured to output the gas separated by the separator to the electromagnetic valve;

and a third port installed in the first housing and communicating with the cavity, configured to discharge water separated by the separator.

Therefore, the invention provides a gas-water separation device with a brand new structure, which has the working principle that: before compressed air enters a powder bottle filled with sand blasting powder, the compressed air is treated by adopting the separating device, the compressed air containing moisture entering the air path system is decompressed under the action of the decompression valve and then is input into the separator through the first interface, the separator carries out gas-water separation on the air, the air can easily pass through the separator and is discharged to the electromagnetic valve from the second interface, and the moisture can contact with the separator to be condensed and form water drops to fall into the bottom of the cavity from the bottom of the separator, and then is discharged through the third interface.

In some embodiments, the first housing includes a first body and a cover, the cavity is opened in the first body, the cover covers one end of the first body, the cover can shield the cavity and limit the separator, the first interface and the second interface are installed on the first body, and the third interface is installed on the cover; the separator can separate the cavity into two parts, wherein the first cavity is positioned outside the separator, the second cavity is positioned inside the separator, the first interface is communicated with the second cavity, and the second interface and the third interface are communicated with the first cavity. Therefore, the cover body can limit the separator to avoid movement; more importantly, the cover body is detachable, so that the separator can be replaced, cleaned and the like conveniently; the special design of the separator is convenient for realizing gas-liquid separation.

In some embodiments, the gas-water separation device further comprises a control part, the inner side of the cover body is inwards extended to form a protruding part, the protruding part is provided with a central channel, one end of the central channel is communicated with the third interface, the other end of the central channel is communicated with the cavity, and the control part is arranged in the central channel and can open or close the central channel;

the control part comprises a movable part, a spring and a sealing part, wherein the movable part is sleeved on the central channel and can move along the length direction of the central channel, the spring is sleeved on the periphery of the movable part, one end of the movable part is provided with a shielding cover, the protruding part is provided with a fourth limit groove matched with the shielding cover, one end of the spring is propped against the protruding part, the other end of the spring is propped against the shielding cover, the sealing part is sleeved on the protruding part and is positioned in the fourth limit groove, and the sealing part is in sealing fit with the shielding cover;

The shielding cover is matched with the foot switch, and under the action of the foot switch, the central channel can be opened or closed by the shielding cover.

Thus, the control unit of the gas-water separation device of the present invention operates on the following principle: when the foot switch is stepped on, gas enters the gas path system of the host from the dental chair, at the moment, the gas containing moisture enters the cavity, so that the air pressure in the cavity is increased, the movable part moves under the action of the air pressure, the spring is pressed by the shielding cover and the central channel is closed, the separated gas is discharged to the electromagnetic valve from the second interface, and the liquid is converged at the bottom of the cavity; when the foot switch is released, the air pressure in the cavity is reduced, the movable piece can reset under the action of the spring after the pressure disappears, at the moment, the shielding cover can not shield the central channel, and liquid can be sprayed out or discharged from the third interface when the central channel is opened. The control part of the invention can realize the automatic discharge of separated water and other liquids, does not need manual operation, and has convenient use and strong functionality; more importantly, the automatic water discharge control can be realized through the foot switch, and the operation is convenient.

In some embodiments, the waterway system comprises a water quantity regulating valve and a heating device, the water quantity regulating valve is arranged on the surface of the host, the heating device is arranged in the host, the water inlet end of the water quantity regulating valve is communicated with the water outlet end of the dental chair, the water outlet end is communicated with the water inlet pipe of the heating device, and the water outlet end of the heating device is communicated with the water inlet end of the sand blasting handle. Thereby, the water quantity regulating valve is used for realizing the control of the water quantity entering the heating device; the heating device is arranged in the host, water entering the waterway system can be heated, the device is suitable for cold seasons, the applicability is strong, and the use requirement is met.

In some embodiments, the host further comprises a casing, an electric plug, an AC/DC converter and a bidirectional thyristor output circuit, the air circuit system, the water circuit system and the controller are installed in the casing, the electromagnetic valve is electrically connected with the controller, one end of the electric plug is externally connected with a power supply, the other end of the electric plug is electrically connected with the controller through the AC/DC converter, the bidirectional thyristor output circuit is respectively communicated with the electric plug and the heating device, and the bidirectional thyristor output circuit is electrically connected with the controller. Therefore, the plug-in connector and the AC/DC converter can realize the input of electric power, and the matching of the electromagnetic valve and the controller can be used for controlling the on-off of the air circuit, so as to realize the control of sand blasting powder in the powder bottle; the bidirectional thyristor output circuit can realize constant temperature control of water in the waterway system.

In some embodiments, a sixth limit groove in limit fit with the powder bottle is formed in the host, an ID card is arranged at the bottom of the powder bottle, an identification module in electric connection with the controller and in fit with the ID card is arranged at the bottom of the sixth limit groove, and the identification module is in electric connection with the AC/DC converter. Therefore, according to the sand blasting tooth cleaning system, the sixth limiting groove which is in limiting fit with the powder bottle is formed in the host, the identification module for identifying the powder bottle is arranged at the bottom of the sixth limiting groove, and the ID card at the bottom of each powder bottle is unique and is installed in the powder bottle production process, so that when the sand blasting tooth cleaning system is used, after the powder bottle is placed in the first limiting groove, the identification module can automatically identify and display parameters such as particle size, powder bottle size and the like on the host, and the sand blasting tooth cleaning system is convenient for workers to use and is not easy to confuse.

In some embodiments, the sand blasting tooth cleaning system further comprises a bottle cap, wherein the bottle cap is matched with the powder bottle and used for realizing connection of the powder bottle with the gas path system and the sand blasting handle.

According to another aspect of the present invention, there is also provided a method of sand blasting prophy comprising at least the steps of:

s1, preparation: preparing a powder bottle, connecting the devices, coating a protective layer and wearing an aspirator;

s2, starting: starting a host machine and identifying the powder bottle;

s3, tooth cleaning stage: the pedal switch is stepped down, compressed air is input into the air path system and reaches a preset pressure value, the water path system and the air path system are started, dentifrice and cleaning water are mixed, and teeth are cleaned through the sand blasting handle;

s4, a suction stage: starting the suction device, operating the suction filter device, and sucking splashes splashed out of the oral cavity through the aspirator;

s5, ending: closing the waterway system and the air passage system, opening the electromagnetic valve, and flushing the air passage system and the sand blasting handle by using high-pressure gas.

Therefore, the invention provides a sand blasting tooth cleaning method with a brand new structure, and the sand blasting tooth cleaning method is adopted for cleaning the teeth, so that the tooth cleaning method not only has good tooth cleaning effect; and in the process of tooth cleaning, the splashing matters splashed out of the oral cavity of the patient can be quickly, timely and effectively absorbed, blocked from the source, effectively prevented from flying out, and kept clean and sanitary in the working environment.

The invention has the beneficial effects that:

1. the air-water separation device is arranged, compressed air is treated by the air-water separation device, the compressed air containing moisture entering the air path system can be subjected to air-water separation, the air is easily discharged from the air-water separation device to the electromagnetic valve, the moisture can be remained in the air-water separation device, and the sand blasting tooth cleaning system can be used for drying the compressed air before entering the powder bottle, so that the problem of agglomeration is avoided before entering the sand blasting handle, the problem of agglomeration is eliminated from the source, and the anti-blocking performance is greatly improved;

2. the input of the air source is controlled by the foot switch, so that the air source is convenient to use, the sand blasting work can be directly realized by the foot switch, the applicability is strong, and the use requirement is met;

3. the suction device is matched with the device for sucking the splashes which are splashed out of the oral cavity of the patient, and can suck the splashes generated in the tooth cleaning process quickly, timely and effectively, block the splashes from the source, effectively avoid the splashes from flying out, and keep the working environment clean and sanitary;

4. the aspirator has simple integral structure, convenient use, good effect and beautiful appearance, and does not obstruct the progress of tooth cleaning work;

5. the gas-water separation device is internally provided with a control part, so that the separated liquid such as water can be automatically discharged, manual operation is not needed, and the gas-water separation device is convenient to use and has strong functionality; automatic drainage control can be realized through the foot switch, and the operation is convenient;

6. The heating device is arranged, so that water entering the waterway system can be heated, the water heating device is suitable for cold seasons, has strong applicability and meets the use requirement;

7. the water heater is provided with a bidirectional thyristor output circuit and a temperature adjusting knob, the functions of the heating device can be adjusted through the temperature adjusting knob, and then the water temperature of the waterway system can be adjusted, and the bidirectional thyristor output circuit is matched to realize constant temperature regulation.

In conclusion, the sand blasting tooth cleaning system has the advantages of good gas-water separation effect, capability of automatically discharging separated liquid, capability of automatically cleaning splashes, good anti-blocking performance, convenience in pedal switch operation, strong functionality, strong applicability, convenience in disassembly and assembly and the like.

Drawings

Fig. 1 is a block diagram of a sand blast prophy system according to an embodiment of the invention;

FIG. 2 is a block diagram of the electronic control system of the sand blasting prophy system of FIG. 1;

FIG. 3 is a schematic perspective view of the main unit of the proplasty system of FIG. 1 in use with a proplasty handle;

FIG. 4 is a simplified schematic diagram of the suction apparatus of the abrasive prophy system shown in FIG. 1;

FIG. 5 is a schematic perspective view of an aspirator of the aspiration device shown in FIG. 4;

FIG. 6 is a schematic top view of the aspirator of FIG. 5;

FIG. 7 is a schematic cross-sectional view of the aspirator of FIG. 6 in the F-F direction;

FIG. 8 is a schematic cross-sectional view of the aspirator of FIG. 6 in the G-G direction;

FIG. 9 is a schematic perspective view of the main unit of FIG. 3 equipped with a powder bottle;

FIG. 10 is a schematic perspective view of the sand blasting prophy system of FIG. 9 in use with a bottle cap;

FIG. 11 is a schematic view of the structure of the sand blasted prophy system shown in FIG. 9 after a hidden portion of the housing;

FIG. 12 is one of the schematic perspective views of the air-water separation device of the sand blasting prophy system of FIG. 9;

FIG. 13 is a second perspective view of the air-water separation device of the sand blasting prophy system of FIG. 9;

FIG. 14 is a schematic side view of the gas-water separation device of FIG. 12;

FIG. 15 is a schematic view showing a sectional structure in the D-D direction of the gas-water separation device shown in FIG. 14;

FIG. 16 is an enlarged schematic view of the structure at E of the gas-water separation device shown in FIG. 15;

FIG. 17 is a schematic view of an exploded construction of the gas-water separation device shown in FIG. 13;

fig. 18 is a schematic view of the abrasive blasted prophy system of fig. 15 illustrating one of the separation processes.

Reference numerals in fig. 1 to 18:

a-a host; b-powder bottle; c-a sand blasting handle; d, bottle cap; e-foot switch; f-dental chair; g-sand blasting powder; h-a protective layer; i-a suction device; j-ID card; b1-a seventh limit groove; i 1-an aspirator; i 2-suction filtration means; 1-a shell; 2-a water-gas joint; 3-an air path system; 4-waterway system; 5-a controller; 6-a temperature adjusting knob; 7-plug-in connectors; an 8-AC/DC converter; 9-a bidirectional thyristor output circuit; 10-a display; 11-an identification module; 31-a pressure reducing valve; 32-a gas-water separation device; 33-solenoid valve; 34-a first air pump; 35-a second air pump; 36-a pressure sensor; 41-a water quantity regulating valve; 42-heating means; 101-a second body; 102-a suction interface; 321-a first housing; 322-first interface; 323-separator; 324-second interface; 325-a third interface; 326-a control section; 327-mounting portion; 1010-a central opening; 1011-suction channels; 1012-opening; 1013-a first lug; 1014-a second lug; 1015-projections; 1021-connecting threads; 3210-cavity; 3211-a first body; 3212-cover; 3261-a movable element; 3262-spring; 3263—a seal; 3271-mounting holes; 10131-a first opening; 10141-a second opening; 10151-jack; 32101-a first cavity; 32102-a second cavity; 32111-a first limit groove; 32121-a second limit groove; 32123-lugs; 32611-a shield cover; 32123 a-central passage; 32123 b-fourth limit groove; 32123 c-fifth limit groove.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

Figures 1-18 schematically illustrate a grit blasted prophy system according to one embodiment of the present invention.

As illustrated in fig. 1 to 11, the abrasive blasted prophy system comprises at least:

the dental chair f is connected with an external air source and a water source and is provided with a water-air interface;

the device comprises a host a, wherein a controller 5, an air path system 3 and a water path system 4 are arranged in the host a, the air path system 3 is connected with an air source interface on a dental chair f, and the water path system 4 is connected with a water source interface on the dental chair f;

the foot switch e is connected with the host ad controller 5 and the dental chair f and is used for controlling the air source to be input into the air circuit system 3;

the powder bottle b is detachably arranged on the host machine a and is used for containing sand blasting powder;

the sand blasting handle c is connected with the air path system 3 and the water path system 4 of the host computer a;

the suction device i is used in cooperation with the sand blasting handle c and is used for sucking splashes splashed out of the oral cavity;

the suction device i comprises an aspirator i1 arranged at the periphery of the oral cavity and a suction filter device i2 connected with the aspirator i 1;

the air inlet end of the powder bottle b is communicated with the air channel system 3, the air outlet end is communicated with the air channel in the sand blasting handle c, and the foot switch e can control whether the air source is filled in the host machine a. Under the control of the foot switch e, the sand blasting powder in the powder bottle b can be carried out and conveyed into the sand blasting handle c;

The host a comprises a shell 1 and a water-gas joint 2. The water-gas joint 2 is arranged on the surface of the shell 1, and the controller 5 and the gas circuit system 3 are arranged in the shell 1 and are communicated with the gas outlet end of the water-gas joint 2.

The sand blasting tooth cleaning system of the embodiment further comprises a bottle cap d, wherein the bottle cap d is matched with the powder bottle b and used for realizing connection between the powder bottle b and the air path system 3 and connection between the powder bottle b and the sand blasting handle c.

One end of the bottle cap d is detachably connected with the powder bottle b, and the other end of the bottle cap d is provided with two connectors (not shown in the figure), and the two connectors are respectively connected with the sand blasting handle c and the air path system 3. Therefore, the powder bottle b is convenient to disassemble and assemble, and can be replaced and used according to actual needs.

The air circuit system 3 comprises a pressure reducing valve 31 and an electromagnetic valve 33, one end of the pressure reducing valve 31 is communicated with the air outlet end of the water-air joint 2, the other end of the pressure reducing valve 31 is connected with the air inlet end of the electromagnetic valve 33, the air outlet end of the electromagnetic valve 33 is communicated with one connector of the bottle caps d, the electromagnetic valve 33 is electrically connected with the controller 5, and is used for filling air processed by the pressure reducing valve 31 into the powder bottle b, and the other connector is connected with an air circuit channel of the sand blasting handle c, so that air carrying sand blasting powder is fed into the sand blasting handle c from the powder bottle b. Thereby, the pressure reducing valve 31 plays a role in reducing pressure, ensures normal use of gas, and simultaneously ensures stability of the gas entering the gas path system 3; the electromagnetic valve 33 and the controller 5 can be matched to control the on-off of the air path. The specific working principle of the gas circuit system 3 of this embodiment can be referred to as follows: the Chinese patent application with the application number of 202110426670X and the patent name of anti-blocking tooth cleaning sand blasting device and method.

The gas circuit system 3 further comprises a pressure sensor 36, wherein the pressure sensor 36 is electrically connected with the controller 5 and is communicated with the gas outlet end of the pressure reducing valve 31. Therefore, the gas circuit can be matched with the controller 5, and the on-off control of the gas circuit is realized according to the set parameters.

As shown in fig. 5 to 8, the aspirator i1 of the present embodiment includes at least:

the second body 101 can be covered on the periphery of the oral cavity of the user, and the middle part of the second body is provided with a central opening 1010 through which the sand blasting handle c can pass;

the suction interface 102 is communicated with the second body 101 and is externally connected with air extraction equipment;

a suction passage 1011 and an opening 1012 communicating with the suction passage 1011 are provided in the second body 101;

the suction port 102 communicates with the suction passage 1011.

The second body 101 of the present embodiment may be designed according to actual needs, and preferably is enclosed around the outer periphery of the oral cavity, so that the operation of cleaning teeth is not blocked, and other parts (such as the nose) of the patient are not squeezed.

The opening 1012 is opened on the inner side surface of the second body 101 along the extending direction of the second body 101. Thereby, objects splashed from the oral cavity are facilitated to smoothly enter the suction passage 1011 of the second body 101.

The suction port 102 is integrally connected with the second body 101. Therefore, the device has the advantages of simple structure, convenient manufacture and low cost, and is applicable to 3D printing and forming.

One end of the second body 101 is provided with a first lug 1013, and a first opening 10131 is formed in the first lug 1013.

The other end of the second body 101 is provided with a second lug 1014, and the second lug 1014 is provided with a second opening 141. Thus, the arrangement of the first lugs 1013, the second lugs 1014 facilitates the assembly of a headband, a rope or rubber strip, a rubber band, etc., so as to facilitate the wearing and thus the fixing of the second body 101.

The second lugs 1014 may be provided on the outer wall of the second body 101, the outer wall of the suction interface 102, or the connection of the second body 101 to the suction interface 102, as desired. The second lug 1014 of the present embodiment is provided at the junction of the second body 101 and the suction port 102.

The outer circumference of the end of the suction port 102 remote from the second body 101 is provided with a connecting screw 1021. Therefore, the detachable connection with the external pipeline is convenient to realize.

The second body 101 is provided with a protruding portion 1015, and the protruding portion 1015 is provided with a jack 10151. Thus, the opening of the insertion hole 10151 facilitates the placement of the suction nozzle of the strong suction device or the weak suction device connected with the dental chair, and facilitates the use of doctors or staff.

As shown in fig. 1 to 3, the second body 101 of the present embodiment may be a contoured plastic piece having a closed loop shape and conforming to the outer periphery of the oral cavity. The specific shape can be designed according to actual needs, and is preferably elliptical.

The invention provides an aspirator i1 with a brand new structure, which comprises the following working principles: when the sand blasting tooth cleaning is needed, the second body 101 is covered on the periphery of the oral cavity, the central opening 1010 is aligned to the oral cavity, the external air extraction equipment of the suction interface 102 can enable the suction channel 1011 to form negative pressure, a doctor can operate the sand blasting handle c to pass through the central opening 1010 to clean teeth in the oral cavity of a patient, and splashes generated in the tooth cleaning process can enter the suction channel 1011 from the opening 1012 of the square first body under the combined action of the air pressure on the outer side surface of the central opening 1010 and the negative pressure in the suction channel 1011, and finally are sucked from the suction interface 102.

The aspirator i1 has simple integral structure, convenient use and good effect, can not only prevent the tooth cleaning work from being carried out, but also can rapidly, timely and effectively suck the splashes generated in the tooth cleaning process, block the splashes from the source, effectively avoid the splashes from flying out, and keep the working environment clean and sanitary.

The air path system 3 of the present embodiment further includes an air-water separation device 32, a first air pump 34 and a second air pump 35, wherein the air outlet end of the pressure reducing valve 31 is communicated with the air inlet end of the air-water separation device 32, the air outlet end of the air-water separation device 32 is connected with the air inlet end of the electromagnetic valve 33, the first air pump 34 and the second air pump 35 are connected in parallel and are electrically connected with the controller 5, and the air outlet end is communicated to a connecting air pipe between the bottle cap d and the sand blasting handle c. Therefore, the gas-water separation device 32 plays a role of drying air, avoids caking problems and prevents the gas path system 3 from being blocked; the gas-water separation device 32 may be a conventional device for performing gas-liquid separation or gas drying. The first air pump 34 and the second air pump 35 can realize air injection to the air path system 3 and the sand blasting handle c, and further prevent blockage.

As shown in fig. 12 to 18, the gas-water separation device 32 of the present embodiment includes at least:

a first housing 321 having a cavity 3210;

a first port 322 mounted on the first housing 321 and communicating with the cavity 3210, the first port 322 communicating with the gas outlet end of the pressure reducing valve 31 and configured to input a gas containing moisture;

a separator 323 installed in the cavity 3210 and configured to separate gas a containing moisture from the gas a entering the first casing 321;

a second port 324 installed at the first housing 321 and communicated with the cavity 3210, the second port 324 being connected to an air inlet end of the solenoid valve 33 and configured to output the gas B separated by the separator 323 to the solenoid valve 33;

the third port 325 is mounted on the first housing 321 and communicates with the cavity 3210, and is configured to discharge the water C separated by the separator 323.

The first, second and third ports 322, 324, 325 of the present embodiment may be copper air nozzles, and may be connected to pipes such as an air inlet pipe, an air outlet pipe, a drain pipe, etc.

The first casing 321 includes a first body 3211 and a cover 3212, the cavity 3210 is opened in the first body 3211, the cover 3212 covers one end of the first body 3211, the cover 3212 can shield the cavity 3210 and limit the separator 323, the first interface 322 and the second interface 324 are mounted on the first body 3211, and the third interface 325 is mounted on the cover 3212. Thus, the cover 3212 can limit the separator 323 to avoid movement; more importantly, the cover 3212 is removable to facilitate replacement, cleaning, etc. of the separator 323.

Separator 323 can separate cavity 3210 into two portions, wherein a first cavity 32101 is located outside separator 323, a second cavity 32102 is located inside separator 323, first port 322 is in communication with second cavity 32102, and second port 324 and third port 325 are in communication with first cavity 32101. Thereby, the gas-liquid separation is facilitated.

The separator 323 is a cylindrical cover, and the diameter of the separator 323 gradually decreases from the first body 3211 to the cover 3212. Therefore, the air-liquid separation device can play a role in guiding flow and has better air-liquid separation effect.

The separator 323 of the present embodiment may be formed by press molding a plurality of copper particles. Thus, when the compressed gas enters the separator 323, the gas can rapidly pass through the separator 323, moisture can contact the inner wall of the separator 323 and condense into water droplets, the water droplets slowly flow along the inner wall of the separator 323, and the water droplets are discharged from the gaps among the copper particles of the separator 323.

The front end diameter of the separator 323 of the present embodiment is much larger than the diameter of the air inlet passage of the first port 322, so that the aqueous gas entering the separator 323 can be sufficiently contacted with the separator 323 having a large area, and a filtering effect of at least 80% or more is achieved, that is, 80% or more of the moisture in the aqueous gas can be retained on the separator 323.

The two ends of the separator 323 respectively prop against the first body 3211 and the cover body 3212, a first limit groove 32111 is formed in the inner side wall of the first body 3211, a second limit groove 32121 is formed in the inner side wall of the cover body 3212, the first limit groove 32111 is in limit fit with the first end of the separator 323, and the second limit groove 32121 is in limit fit with the second end of the separator 323. The first and second stopper grooves 32111 and 32121 of the present embodiment may be circular grooves that are matched with the cylindrical separator 323. Therefore, the separator 323 can have a good limiting effect, other limiting parts are not required to be additionally arranged, and the whole structure is simple.

The lid 3212 detachably installs in the one end of first body 3211, and the third spacing groove has been seted up to the inner wall of first body 3211, and the outer wall of lid 3212 is provided with the spacing sand grip of spacing complex with the third spacing groove. Therefore, the cover body 3212 can be quickly installed conveniently, and the cover body 3212 can be limited after being installed, so that the cover body 3212 is prevented from rotating.

The gas-water separator 32 of the present embodiment further includes a control portion 326, the inner side of the cover body 3212 extends inward to form a protruding portion 32123, the protruding portion 32123 is provided with a central channel 32123a, one end of the central channel 32123a is communicated with the third port 325, the other end is communicated with the cavity 3210, and the control portion 326 is mounted on the central channel 32123a and can open or close the central channel 32123a. Thus, the control unit 326 can control the opening and closing of the central passage 32123a according to the magnitude of the air pressure in the cavity 3210, thereby controlling the water discharge; more importantly, the control unit 326 can realize the functions of only draining water and not exhausting air, and has strong functionality.

The control portion 326 includes a movable member 3261, a spring 3262, and a seal member 3263. The movable member 3261 is sleeved on the central channel 32123a and can move along the length direction of the central channel 32123a, the spring 3262 is sleeved on the periphery of the movable member 3261, a shielding cover 32611 is arranged at one end of the movable member 3261, a fourth limiting groove 32123b matched with the shielding cover 32611 is formed in the protruding portion 32123, one end of the spring 3262 abuts against the protruding portion 32123, the other end abuts against the shielding cover 32611, the sealing member 3263 is sleeved on the protruding portion 32123 and is located in the fourth limiting groove 32123b, and the sealing member 3263 is in sealing fit with the shielding cover 32611.

The shielding cover 32611 is engaged with the foot switch e, and the shielding cover 32611 can open or close the central passage 32123a by the foot switch e.

The seal 3263 of the present embodiment may be a silicone seal ring, and the movable member 3261 may be a rivet or the like.

The principle of the control unit 326 is: when the foot pedal e is stepped on, air enters the air channel system 13 of the host a from the dental chair f, and at the moment, the air containing moisture enters the cavity 3210, so that the air pressure in the cavity 3210 is increased; when the air pressure in the cavity 3210 reaches a certain value, the movable member 3261 moves under the action of the air pressure, and compresses the spring 3262 and the closed central channel 32123a through the shielding cover 32611, at this time, the air can only be discharged from the second port 324, and the liquid is collected at the bottom of the cavity 3210; when the foot switch e is released, the air pressure in the cavity 3210 is reduced, and after the pressure disappears, the movable member 3261 is reset under the action of the spring 3262, and at this time, the shielding cover 32611 does not shield the central passage 32123a, so that the liquid is ejected or discharged from the third port 325 when the central passage 32123a is opened. The control part 326 of the invention can realize the automatic discharge of the separated water and other liquids, does not need manual operation, and has convenient use and strong functionality.

The inner wall of the central channel 32123a is provided with a fifth limit groove 32123c, and the spring 3262 is in limit fit with the fifth limit groove 32123 c. Thus, the spring 3262 can be effectively restrained.

The gas-water separator 32 according to the present embodiment further includes a mounting portion 327, the mounting portion 327 is provided on the first housing 321, a mounting hole 3271 is provided in the mounting portion 327 and is located at an end far from the third interface 325, and a mounting hole 3271 is provided in the mounting portion 327. Therefore, the installation and fixation of the device are facilitated through the installation hole 3271, and the installation portion 327 is installed on the outer wall of the first casing 321, and has a certain height, so that the height of one side of the first casing 321, which is close to the third interface 325, is lower than that of the other side, the diversion effect is achieved, the liquid such as water is conveniently gathered towards the direction of the third interface 325, and the drainage is further facilitated.

The invention provides a gas-water separation device 32 with a brand new structure, and the working principle of the gas-water separation device 32 is as follows: before compressed air enters the powder bottle B filled with sand blasting powder, the compressed air is treated by adopting the air-water separation device 32, compressed air A containing moisture is input through the first interface 322, the gas is subjected to air-water separation by the separator 323, the separated gas B has light weight and can easily gather upwards through the separator 323 and then be discharged from the second interface 324, and the separated moisture C contacts with the separator 323 and is condensed to form water drops which fall into the bottom of the cavity 3210 from the bottom of the separator 323 and then is discharged through the third interface 325.

The gas-water separation device 32 can dry the compressed air before entering the powder bottle b, so that the caking problem is avoided, further, the blockage prevention is realized, and the caking problem is eliminated from the source;

the special structure of the separator 323 can realize good gas-water separation function;

the limiting structures of the first body 3211 and the cover body 3212 can realize a good limiting function;

the control part 326 is arranged, so that the separated liquid such as water can be automatically discharged, manual operation is not needed, and the device is convenient to use and has strong functionality;

an installation portion 327 is provided to facilitate installation and fixation of the device.

In addition, the first shell 321 can be provided with a diameter of 3-10 cm and a length of 3-15cm, and has a small overall size and a small volume, and the whole sand-blasting tooth-cleaning system can be embedded in a host of the sand-blasting tooth-cleaning system.

In summary, the gas-water separation device 32 of the present invention has the advantages of simple structure, small volume, good gas-water separation effect, automatic water drainage, strong functionality, convenient disassembly and assembly, etc.

The waterway system 4 of this embodiment includes a water quantity adjusting valve 41 and a heating device 42, the water quantity adjusting valve 41 is installed on the surface of the housing, the heating device 42 is installed in the housing, the water inlet end of the water quantity adjusting valve 41 is connected with the water outlet end of the water-gas joint 2, the water outlet end is communicated with the water inlet end of the heating device 42, and the water outlet end of the heating device 42 is communicated with the water inlet end of the sand blasting handle c.

The heating device 42 of the present embodiment may be a commercially available heater or a heating water tank, and the specific structure thereof will not be described here.

The sandblast handle c of this embodiment may be a conventional sandblast handle in the market, and an air channel connected to the air outlet end of the air channel system 3 and a water channel connected to the water outlet end of the water channel system 4 are disposed in the sandblast handle c, and the specific structure will not be described here too much.

A sixth limit groove in limit fit with the powder bottle b is formed in the host a of the embodiment, an ID card j is arranged at the bottom of the powder bottle 2, and an identification module 11 which is electrically connected with the controller 5 and is matched with the ID card j is arranged at the bottom of the sixth limit groove;

the identification module 11 of the present embodiment may be an ID card reader.

A seventh limit groove b1 matched with the ID card j is formed in the bottom of the powder bottle b. Thereby, the installation of the ID card j is facilitated, and the stability of the powder bottle b is not affected.

As shown in fig. 5, the host a of the present embodiment further includes an electrical connector 7, an AC/DC converter 8, and a bidirectional thyristor output circuit 9, wherein one end of the electrical connector 7 is externally connected with a power supply, the other end is electrically connected with the controller 5 and the identification module 11 through the AC/DC converter 8, the bidirectional thyristor output circuit 9 is respectively communicated with the electrical connector 7 and the heating device 42, and the bidirectional thyristor output circuit 9 is electrically connected with the controller 5. Thus, the plug-in connector 7 and the AC/DC converter 8 can input electric power, and the bidirectional thyristor output circuit 9 can realize constant temperature control of water in the waterway system 4.

The host a further comprises a temperature adjusting knob 6, and the temperature adjusting knob 6 is installed on the casing 1 and is electrically connected with the controller 5. Therefore, the function of the heating device 42 can be adjusted through the temperature adjusting knob 6, so that the water temperature of water in the waterway system 4 can be adjusted, and the constant temperature regulation and control can be realized by matching with the bidirectional thyristor output circuit 9.

The host a further comprises a display 10, and the display 10 is mounted on the surface of the casing 1 and electrically connected with the controller 5. Thus, the display 10 can display the temperature, the water amount, and the like, and is convenient for observation.

According to another aspect of the present invention, there is also provided a method of sand blasting prophy comprising at least the steps of:

s1, preparation: preparing a powder bottle b, connecting the devices, coating a protective layer h and wearing an aspirator i1;

in this step, since gum damage and even bleeding are easily caused during the sand blasting process, before the tooth cleaning by sand blasting, a layer of protection layer h needs to be coated on the gum of the patient, and the protection layer h in this embodiment may be a photo-cured gum protection resin, a photo-cured gum protection agent, etc. commonly used in the market.

S2, starting: starting a host a and identifying a powder bottle b;

s3, tooth cleaning stage: the pedal switch e is stepped down, compressed air is input into the air path system 3 and reaches a preset pressure value, the water path system 4 and the air path system 3 are started, dentifrice and cleaning water are mixed, and teeth are cleaned through the sand blasting handle c;

S4, a suction stage: starting the suction device i, operating the suction filter device i2, and sucking splashes splashed out of the oral cavity through the suction device i 1;

s5, ending: the waterway system 4 and the air path system 3 are closed, the solenoid valve 33 is opened, and the air path system 3 and the blasting handle c are flushed with high-pressure air.

Therefore, the invention provides a sand blasting tooth cleaning method with a brand new structure, and the sand blasting tooth cleaning method is adopted for cleaning the teeth, so that the tooth cleaning method not only has good tooth cleaning effect; moreover, the dental cleaning appliance can not be blocked, gum injury can not be caused, and more importantly, splashes splashed from the oral cavity of a patient can be quickly, timely and effectively sucked in the dental cleaning process, blocked from the source, the splashes can be effectively prevented from flying out, and the cleanness and the sanitation of the working environment are maintained.

The sand blasting tooth cleaning system has the following advantages:

1. the air-water separation device 32 is arranged, the air-water separation device 32 is used for treating the compressed air, so that the compressed air containing moisture entering the air path system 3 can be subjected to air-water separation, the air is easily discharged from the air-water separation device 32 to the electromagnetic valve 33, the moisture can be remained in the air-water separation device 32, and the sand blasting tooth cleaning system disclosed by the invention can be used for drying the compressed air before entering the powder bottle b, so that the caking problem is avoided before entering the sand blasting handle c, the caking problem is prevented from occurring from the source, and the anti-blocking performance is greatly improved;

2. The input of the air source is controlled by the foot switch e, so that the air source is convenient to use, the sand blasting work can be directly realized by the foot switch e, the applicability is strong, and the use requirement is met;

3. the suction device i is matched with the device for sucking the splashes which are splashed out of the oral cavity of the patient, and can suck the splashes generated in the tooth cleaning process quickly, timely and effectively, block the splashes from the source, effectively avoid the splashes from flying out, and keep the working environment clean and sanitary;

4. the aspirator i1 has simple integral structure, convenient use, good effect and beautiful appearance, and does not obstruct the progress of tooth cleaning work;

5. the gas-water separation device 32 is internally provided with a control part 326, so that the separated liquid such as water can be automatically discharged, manual operation is not needed, and the gas-water separation device is convenient to use and has strong functionality; automatic drainage control can be realized through the foot switch e at the same time, and the operation is convenient;

6. the heating device 42 is arranged, so that water entering the waterway system 4 can be heated, the water heater is suitable for cold seasons, the applicability is high, and the use requirement is met;

7. the water temperature control device is provided with a bidirectional thyristor output circuit 9 and a temperature control knob 6, the functions of the heating device 42 can be controlled through the temperature control knob 6, and then the water temperature of the waterway system 4 can be controlled, and the bidirectional thyristor output circuit 9 is matched to realize constant temperature control.

In conclusion, the sand blasting tooth cleaning system has the advantages of good gas-water separation effect, capability of automatically discharging separated liquid, capability of automatically cleaning splashes, good anti-blocking performance, convenience in operation and control, strong functionality, strong applicability, convenience in disassembly and assembly and the like.

What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims (8)

1. A grit blasted prophy system comprising at least:

a host (a) is internally provided with a controller (5), an air path system (3) and a waterway system (4);

the foot switch (e) is connected with the controller (5) and is used for controlling the air source to be input into the air circuit system (3);

a powder bottle (b) which is arranged on the host machine (a) and is used for containing sand blasting powder (g);

the sand blasting handle (c) is connected with the air path system (3) and the water path system (4) of the host machine (a);

a suction device (i) used in cooperation with the sandblasting handle (c) for sucking the splashes splashed out of the oral cavity;

the suction device (i) comprises an aspirator (i 1) arranged at the periphery of an oral cavity and a suction filtering device (i 2) connected with the aspirator (i 1);

The air inlet end of the powder bottle (b) is communicated with the air channel system (3), the air outlet end of the powder bottle (b) is communicated with the air channel in the sand blasting handle (c), and under the control of the foot switch (e), sand blasting powder (g) in the powder bottle (b) can be carried out by air in the air channel system (3) and conveyed into the sand blasting handle (c);

the gas circuit system (3) comprises a pressure reducing valve (31), a gas-water separation device (32) and an electromagnetic valve (33), wherein the electromagnetic valve (33) is electrically connected with the controller (5), one end of the pressure reducing valve (31) is communicated with a gas source, the other end of the pressure reducing valve is communicated with the gas inlet end of the gas-water separation device (32), the gas outlet end of the gas-water separation device (32) is connected with the gas inlet end of the electromagnetic valve (33), and the gas outlet end of the electromagnetic valve (33) is communicated with the gas inlet end of the powder bottle (b);

the gas-water separation device (32) comprises at least:

a first housing (321) provided with a cavity (3210);

a third port (325) mounted to the first housing (321) and communicating with the cavity (3210) and configured to drain separated water;

the first shell (321) comprises a first body (3211) and a cover body (3212), the cavity (3210) is formed in the first body (3211), and the cover body (3212) covers one end part of the first body (3211);

The third interface (325) is mounted on the cover (3212);

the gas-water separation device (32) further comprises a control part (326), a protruding part (32123) is inwards extended from the inner side of the cover body (3212), a central channel (32123 a) is formed in the protruding part (32123), one end of the central channel (32123 a) is communicated with the third interface (325), the other end of the central channel is communicated with the cavity (3210), and the control part (326) is arranged in the central channel (32123 a) and can open or close the central channel (32123 a);

the control part (326) comprises a movable part (3261), a spring (3262) and a sealing part (3263), wherein the movable part (3261) is sleeved on the central channel (32123 a) and can move along the length direction of the central channel (32123 a), the spring (3262) is sleeved on the periphery of the movable part (3261), one end of the movable part (3261) is provided with a shielding cover (32611), the protruding part (32123) is provided with a fourth limiting groove (32123 b) matched with the shielding cover (32611), one end of the spring (3262) is abutted against the protruding part (32123), the other end of the spring (3262) is abutted against the shielding cover (32611), the sealing part (3263) is sleeved on the protruding part (32123) and is positioned in the fourth limiting groove (32123 b), and the sealing part (3263) is in sealing fit with the shielding cover (32611).

The shielding cover (32611) is matched with the foot switch (e), and under the action of the foot switch (e), the central channel (32123 a) can be opened or closed by the shielding cover (32611).

2. A sand blasting prophy system according to claim 1, wherein the aspirator (i 1) comprises at least:

the second body (101) can be covered on the periphery of the oral cavity of a user, and a central opening (1010) through which the sand blasting handle (c) can pass is formed in the middle of the second body;

a suction interface (102) communicating with the second body (101) and for connecting a suction filtration device (i 2);

a suction channel (1011) and an opening (1012) communicated with the suction channel (1011) are arranged in the second body (101);

one end of the suction interface (102) is communicated with the suction channel (1011), and the other end is connected to a suction filtration device (i 2).

3. The grit blasted prophy system of claim 1, wherein the gas-water separation device (32) further comprises:

a first port (322) mounted on the first housing (321) and communicating with the cavity (3210), the first port (322) communicating with the outlet end of the pressure reducing valve (31) and configured to input a gas containing moisture into the cavity (3210);

A separator (323) mounted in the cavity (3210) and configured to separate gas from water in the gas containing moisture entering the first casing (321);

a second interface (324) mounted on the first housing (321) and communicated with the cavity (3210), the second interface (324) being connected to an air inlet end of the electromagnetic valve (33) and configured to output the gas separated by the separator (323) to the electromagnetic valve (33);

the third interface (325) is configured to drain water separated by the separator (323).

4. A grit blast dental cleaning system according to claim 3, characterized in that the cover (3212) may block the cavity (3210) and limit the separator (323), the first and second interfaces (322, 324) being mounted to the first body (3211); the separator (323) can separate the cavity (3210) into two parts, wherein a first cavity (32101) is arranged outside the separator (323), a second cavity (32102) is arranged inside the separator (323), the first port (322) is communicated with the second cavity (32102), and the second port (324) and the third port (325) are communicated with the first cavity (32101).

5. The sand blasting tooth cleaning system according to any one of claims 1-4, wherein the waterway system (4) comprises a water quantity regulating valve (41) and a heating device (42), the water quantity regulating valve (41) is installed on the surface of the host (a), the heating device (42) is installed in the host (a), the water inlet end of the water quantity regulating valve (41) can be communicated with the water outlet end of the dental chair (f), the water outlet end is communicated with the water inlet pipe of the heating device (42), and the water outlet end of the heating device (42) is communicated with the water inlet end of the sand blasting handle (c).

6. The sand blasting tooth cleaning system according to claim 5, wherein the host (a) further comprises a shell (1), an electric plug (7), an AC/DC converter (8) and a bidirectional thyristor output circuit (9), the air circuit system (3), the waterway system (4) and the controller (5) are installed in the shell (1), one end of the electric plug (7) is externally connected with a power supply, the other end of the electric plug is electrically connected with the controller (5) through the AC/DC converter (8), the bidirectional thyristor output circuit (9) is respectively communicated with the electric plug (7) and the heating device (42), and the bidirectional thyristor output circuit (9) is electrically connected with the controller (5).

7. The sand blasting tooth cleaning system according to claim 6, wherein a sixth limit groove in limit fit with the powder bottle (b) is formed in the host (a), an ID card (j) is arranged at the bottom of the powder bottle (b), an identification module (11) which is electrically connected with the controller (5) and is matched with the ID card (j) is arranged at the bottom of the sixth limit groove, and the identification module is electrically connected with the AC/DC converter (8).

8. The sand blasting tooth cleaning system according to any one of claims 1-4, further comprising a bottle cap (d), wherein the bottle cap (d) is matched with the powder bottle (b) and is used for realizing connection between the powder bottle (b) and the air path system (3) and the sand blasting handle (c).