KR101701806B1 - Automatic water seal type suction device for dental unit chair - Google Patents

Abstract

The present invention relates to an automatic wet suction apparatus for a dental unit chair. The present invention includes: a water-sealed vacuum pump having a sealing water inlet, an air inlet, and an outlet through which a fluid sucked through the sealing water and air inlets is discharged; a cyclone centrifugation means having an upper end connected to the air inlet of the water-sealed vacuum pump, having an upper end portion circumference connected to a suction tip of the unit chair, separating air and foreign matter-containing dirty water sucked from a patients oral cavity, and removing the separated dirty water; and a sealing water recirculation unit provided with a sealing water tank having a lower end connected to the sealing water inlet of the water-sealed vacuum pump, having an upper end portion circumference connected to the outlet of the water-sealed vacuum pump, and having a discharge port at the upper end thereof, a cooling means cooling sealing water supplied from the sealing water tank to the water-sealed vacuum pump, and a sealing water quantitative supply pump supplying a predetermined amount of the sealing water in the sealing water tank at a time to the water-sealed vacuum pump. According to the present invention, foreign matter such as saliva and bloody pus sucked from the patients oral cavity can be reliably separated from the air, and thus sealing water contamination can be reliably prevented. In addition, the sealing water is appropriately cooled through heat exchange with the discharged and constant-temperature foreign matter and recirculated, and thus sealing water consumption can be significantly reduced. Furthermore, the separated foreign matter can be automatically and easily discharged in a vacuum-formed state even without the apparatus being halted.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wet type suction device for applying a vacuum to a unit chair used for a dental treatment and a surgical operation to remove wastewater mixed with saliva, By completely isolating saliva and foreign matter such as saliva, it is surely prevented from entering into the wet vacuum pump, thereby preventing the damage and efficiency deterioration of the vacuum pump, and enabling a constant circulation supply of the seal water, The present invention relates to a fully automatic wet suction apparatus for a dental unit chair capable of sterilizing by a small-capacity low-cost sterilizing means and effectively preventing environmental pollution, since foreign substances such as saliva and smear can be completely separated from air and can be concentrated and discharged.

Generally, a unit chair used for receiving a patient's treatment or receiving a surgery in a dentist includes various tools necessary for dental care and treatment such as a handpiece, a suction tip, Which is a very important dental medical product which enables efficient treatment.

In the suction device, a vacuum is applied to the suction tip of the unit chair to discharge foreign substances such as saliva, pus, and calculus generated in the oral cavity of the patient during the dental treatment and operation, together with the washing water sprayed into the oral cavity using a suction tip It is a very important factor that must be indispensable to the unit chair.

This type of suction device is divided into a wet type using a vacuum type pump and a dry type using an air compressor. Since the vacuum type pump has the same capacity as the air type compressor, the vacuum efficiency is high and the vacuum flow rate is high. .

As a well-known type of vacuum pump, an impeller is eccentrically installed in a cylindrical cylinder, and sealing water is added to the impeller to rotate the impeller so that a centrifugal force is generated between the annular water film formed on the inner cylinder wall and the eccentric impeller Since the fluid is sucked and discharged in accordance with the volume change, it is very important to supply the appropriate amount of balls for smooth and efficient operation.

However, since the foreign substances such as the saliva and the smell sucked from the oral cavity of the patient through the suction tip and the washing water are introduced into the cylinder of the water-sealed type vacuum pump, not only the efficiency of the vacuum pump is lowered but also foreign matters such as saliva and calculus Which may cause overloading, which may cause motor damage to the vacuum pump.

Accordingly, during the operation of the apparatus, since it is necessary to discharge the polluted water in the cylinder while supplying the water to the cylinder of the vacuum pump from time to time, the consumption of the water in the cylinder is excessively excessive and the supply amount of the water is controlled. And the oral condition of the patient. Therefore, it was practically impossible to control the optimum amount of beads for optimal operation.

Particularly, since a large amount of saliva introduced from a patient's mouth is mixed with foreign matters such as smell and calculus, odor is generated, and there is a serious problem that the discharged water is dumped into a sewer to pollute the water quality.

Korean Patent No. 10-0957757 discloses an example of a dental suction device for solving the problem of such a general dental wet vacuum pump. This technology is equipped with a sophisticated oxidation treatment tank in which water is filled, and a separation pipe and a discharge lamp are provided in the interior thereof to sterilize and disinfect the inhaled water sucked in from the patient's mouth. However, It is difficult to expect a water saving effect because it requires continuous water supply, and there is a great concern about cost increase because a sterilizing device with a large capacity and high price is required.

Korean Patent No. 10-1341139 discloses a sewage tank for storing wastewater sucked by a suction nozzle, the upper end of which is connected to a first suction portion of a water-pumped vacuum pump, a second suction portion of the vacuum pump, And a sewage tank having an exhaust part at an upper end thereof so as to constitute a closed circuit so that sewage is prevented from being contaminated by separating and discharging only sewage water and thus the sewage can be reused.

However, this technology has had the following fatal problems.

First, in order to discharge the sewage stored in the sewage tank, since the inside of the tank is evacuated, the operation of the apparatus is stopped according to the signal of the sensor, and the device is inevitably discharged, and the use thereof is very inconvenient,

Secondly, although a filter for preventing foreign matter from entering the inlet of the second suction pipe connecting the sewage tank and the vacuum pump is provided, it is possible to reliably prevent foreign substances such as calculus and cutting particles, There is a problem in that it is difficult to filter out and the filter needs to be replaced or cleaned from time to time.

Third, since the water in the sewage tank is recirculated to the vacuum pump, the consumption of the sewage water is reduced. However, due to the characteristics of the water-sourced vacuum pump, cavitation phenomenon occurs in the pump The reuse of the seal without additional cooling means is virtually impossible.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a vacuum pump which is capable of completely separating sewage mixed with saliva, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a fully automatic wet suction apparatus for a dental unit chair capable of minimizing contamination of a vacuum pump due to stacking of foreign matter and minimizing efficiency deterioration.

It is another object of the present invention to provide an apparatus and a method for controlling the circulation of sewage, which enables recirculation of the sewage water by preventing contamination of the sewage, and by appropriately cooling the temperature of the sewage to be recirculated, the cavitation phenomenon caused by the rise in water temperature is effectively suppressed, The present invention provides a fully automatic wet suction apparatus for a dental unit chair capable of obtaining a maximum vacuum efficiency by supplying a predetermined amount of stick water to a vacuum pump.

It is a further object of the present invention to provide a sterilizing apparatus which can surely sterilize even a small amount of sterilization apparatus and discharge saliva and peeps separated from the inhaled air to minimize odor generation and water pollution and also to sterilize And to provide a fully automatic wet type suction device for a dental unit chair that can easily discharge processed foreign matter.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, a fully automatic wet suction apparatus for a dental unit chair according to the present invention includes: a water-sealed vacuum pump having a water inlet, an air inlet, and an outlet for discharging fluid sucked through the water inlet; A cyclone centrifugal separating means for separating and removing the wastewater containing foreign substances sucked from the oral cavity of the patient by connecting the upper end to the air inlet of the water-sealed vacuum pump and the upper end periphery to the suction tip of the unit chair; A bottom of which is connected to a bottom opening of the water-sealed vacuum pump, an upper end of which is connected to an outlet of the water-sealed vacuum pump, and a top of which is provided with an exhaust opening, cooling means for cooling the water supplied from the bottom- And a sewage recirculation unit having a sewage amount constant amount supply pump for supplying the sewage in the sewage sludge supply unit by a predetermined amount by a water-sourced vacuum pump.

According to a preferred aspect of the present invention, the cyclone centrifugal separator comprises a cylinder having an upper end connected to the air inlet of the water-sealed vacuum pump, an upper end circumferential portion connected to the suction tip of the unit chair, and a cone portion having a foreign- A foreign matter reservoir having an inlet connected to a foreign matter outlet of the cyclone gas-liquid separator at an upper end thereof and an outlet at a lower end thereof, and a discharge port of the foreign matter outlet of the cyclone gas-liquid separator and a discharge port of the foreign matter reservoir, And an exhaust pipe connecting the exhaust port of the sail tank and the branch pipe.

According to another preferred feature of the present invention, the cyclone centrifugal separator comprises first and second cyclone gas-liquid separators each having a cone portion formed with a foreign matter discharge port at a lower end thereof, and a second cyclone gas- A second suction pipe having an inlet connected to the first suction pipe via a fourth three-way valve and an outlet connected to the upper end of the second cyclone gas-liquid separator, and a second suction pipe connected to the first suction pipe, A first intake pipe connecting the upper end of the cyclone gas-liquid separator and the air intake port of the water-sealed vacuum pump, an inlet connected to the upper end of the second cyclone gas-liquid separator and an outlet connected to the first exhaust pipe through a fifth three- And a vacuum breaking means for selectively breaking the vacuum of the first and second cyclone gas-liquid separators.

The vacuum breaker includes a vacuum breaker tube having one end connected to the first suction pipe so as to be located downstream of the fourth three-way valve and the other end connected to the second suction pipe, and the vacuum breaker pipe, and the first and second cyclone gas And a sixth three-way valve for selectively connecting any one of the separators to the atmosphere.

The vacuum breaker includes a vacuum break tube having one end connected to the first suction pipe so as to be positioned downstream of the fourth three-way valve and the other end connected to the second exhaust pipe, and a vacuum breaker having one end connected to the upper end of the sewer tank, And an exhaust pipe connected to the destruction pipe through a seventh three-way valve.

Preferably, the cooler of the sewer recirculation unit cools the sewing water by mutually exchanging the foreign matter discharged from each cyclone gas-liquid separator and the sewer supplied from the sewer tank.

In addition, each cyclone gas-liquid separator is provided with a level sensor for sensing and sending out the level of the foreign substance, and further includes an ozone generator for sterilizing the foreign substance concentrated and discharged in the foreign matter reservoir and the first and second cyclone gas- Thereby effectively preventing odor and water pollution caused by foreign substances.

According to the automatic wet-type suction apparatus for a dental unit chair according to the present invention, the wastewater mixed with the saliva and the skin to be sucked from the oral cavity of the patient can be completely separated from the air by the cyclone centrifuge, The vacuum pump can prevent the contamination of the seal water due to the inflow of the foreign matter and can minimize the damage and the deterioration of the vacuum pump due to the stacking of the foreign substances.

Also, since the polluted water is reliably prevented, the discharged sewage can be recycled to the vacuum pump, and the recirculated sewage is properly cooled and supplied through the heat exchange with the foreign matter discharged at the normal temperature, so that even when the sewage is recirculated It is possible to effectively suppress the rapid cavitation phenomenon due to the rise in water temperature.

Accordingly, the present invention can continuously operate only by supplying a minimum amount of water, thereby drastically reducing the consumption of the wastewater due to the operation of the water-suction type vacuum pump, and can also achieve a maximum vacuum efficiency by supplying a predetermined amount of water to the vacuum pump.

In addition, since the saliva separated from the inhalation air by the cyclone centrifuge is discharged in a concentrated state, it can be sterilized and discharged even with a low-cost sterilizing device such as a small-capacity onion generator, thereby causing a problem of odor generation and water pollution Can be minimized.

Particularly, the present invention is applicable to a centrifugal separator of a single type in which a three-way valve is used to discharge foreign substances separated from air exhausted from a vacuum pump, or a three-way valve is applied to a double centrifugal separator, It is possible to easily discharge the sterilized foreign matter without interrupting the suction device unlike the prior art.

Therefore, the present invention has an excellent effect that greatly contributes to the improvement of the reliability and safety of the dental unit chair and the ease of use.

1 is a system diagram schematically showing an example of a fully automatic wet suction apparatus for a dental unit chair according to the present invention,
2 is a system diagram schematically showing another embodiment of a fully automatic wet suction apparatus for a dental unit chair according to the present invention,
3 is a system diagram schematically showing another embodiment of a fully automatic wet suction apparatus for a dental unit chair according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following description of preferred embodiments with reference to the accompanying drawings.

1, a fully automatic wet suction apparatus 1 for a dental unit chair according to the present invention comprises a water-sealed vacuum pump 10, And a sewage recirculation unit (30) for storing the sewage discharged from the vacuum-type vacuum pump (10) and supplying the sewage water to the vacuum-type vacuum pump (10) .

The water-sealed vacuum pump 10 may be of a well-known type and may be of a well-known type and may include an inlet port 11 and an air inlet port 12, an outlet port through which the fluid introduced through the inlet port 11 and the air inlet port 12 is discharged to the outside 13).

The cyclone centrifuge 20 includes a cyclone gas-liquid separator 21 for separating foreign matter-containing wastewater sucked from the oral cavity of the patient from the air, and a foreign matter storing foreign matter-containing wastewater separated from the cyclone gas- And a reservoir 22.

The cyclone gas-liquid separator 21 has a cylindrical shape having a cone portion 21a at the lower end and has a foreign matter discharge port 23 at the center of the lower end of the cone portion 21a. The upper end of the cyclone gas-liquid separator 21 is connected to a suction tip (not shown) of the unit chair through a suction pipe 40 and an upper end is connected to an air inlet (12).

The foreign matter reservoir 22 has an inlet 24 at an upper portion thereof and is connected to a foreign matter discharge port 23 of the cyclone gas-liquid separator 21 and has a discharge port 25 at a lower portion thereof. The discharge port 25 of the foreign matter reservoir 22 is connected to the cooler 32 of the sewage recycling unit 30 to be described later through a discharge pipe 60.

The foreign matter discharge port 23 of the cyclone gas-liquid separator 21 and the discharge port 25 of the foreign matter reservoir 22 are connected to a branch pipe 26 for selectively changing the course of the exhaust air discharged from the water- And both ends are connected through the first and second three-way valves 27a and 27b, respectively. The branch pipe 26 is connected to the upper end of the sewage tank 31 of the sewage recirculation unit 30 to be described later and the exhaust pipe 28.

Preferably, the first and second three-way valves 27a and 27b are provided in the cyclone gas-liquid separator 21 by sensing the level of the separated foreign matter-containing wastewater and sending the signal to a control unit A level sensor 29 for operating in a predetermined foreign matter discharge mode is provided.

Meanwhile, the discharge pipe 60 connected to the discharge port 25 of the foreign matter storage tank 22 and discharging the foreign substance to the outside is connected to the ozone generator 90 for sterilizing the separated foreign substances.

The sewage recirculation unit 30 includes a sewage tank 31 for storing the sewage discharged from the water-sealed vacuum pump 10, a cooler 32 for appropriately cooling the sewage in the sewage tank 31, And a sewage amount constant water feed pump 33 for re-supplying the sewage amount by a predetermined amount to the water-sealed vacuum pump 10.

The upper end of the sewage tank 31 is connected to the branch pipe 26 of the cyclone centrifugal means 20 through an exhaust pipe 28 and the sewage outlet 34 is provided at the lower end of the sewage tank 31, And is connected to the beak inlet 12 of the vacuum pump 10. The septic tank 31 may have the same construction as the cyclone gas-liquid separator 21 so that the fluid discharged from the water-sealed vacuum pump 10 can be reliably separated from the air by the septic tank.

A cone portion 31a having a seed water outlet 34 is formed at the lower end of the sewage tank 31 and its upper end is connected to the outlet 13 of the water-sealed vacuum pump 10 through a discharge pipe 80 .

The cooler 32 is installed in the sewage supply pipe 70 and has a structure for cooling the sewage water through mutual heat exchange with the foreign matter separated and discharged from the cyclone centrifugal means 20 without a separate cooling device. That is, the cooler 32 is provided so that the flow path through which the sludge passes and the flow path through which the foreign matter passes are separated from each other, so that the cooler 32 performs heat exchange with the foreign matter discharged at a normal temperature state.

The sewage constant amount feed pump 33 is installed in a sewage supply pipe 70 for connecting the sewage tank 31 to the water pump type vacuum pump 10 so that the sewage in the sewage tank 31 is quantitatively .

A water supply pipe 100 connected to an external water supply source is installed at the inlet side of the exhaust pipe 28 for exhausting the air discharged from the water-sealed vacuum pump 10 to the branch pipe 26 in order to replenish the water in the water storage tank 31 Way valve 101 so that the water can be selectively supplied through the exhaust pipe 28 only when necessary. For this purpose, a level sensor 35a for controlling the third three-way valve 101 by detecting the upper and lower levels, for example, the highest and the lowest levels, of the sticky water, (35b) are vertically spaced apart.

The suction device 1 of the present invention is connected in circuit with a control unit (not shown) incorporating a control circuit such as a microcomputer which can logically control the operation of each of the above- As shown in FIG.

Next, the operation of the fully automatic wet suction apparatus 1 for a dental unit chair according to the present invention having such a structural feature will be described.

First, when the apparatus is driven for the first time, a third three-way valve 101 installed in the exhaust pipe 28 operates in a water supply mode to communicate an inlet of the water supply pipe 100 and an inlet of the exhaust pipe 28, Water is supplied to the sewage tank 31 from the sewage tank 31 (not shown). The water supplied from the water supply source is supplied until the upper limit level sensor 35a installed at the upper part of the sewage tank 31 senses the level, and the upper limit level sensor 35a senses the level and sends the signal to the control unit The third three-way valve 101 is activated by a signal from the control unit to switch the exhaust pipe 100 to the exhaust mode by communicating the exhaust pipe 28 with the branch pipe 26.

At this time, the foreign matter outlet 23 of the cyclone gas-liquid separator 21 communicates with the inlet 24 of the foreign matter reservoir 22 and the outlet 25 of the foreign matter reservoir 22 is closed. Accordingly, the discharged air discharged to the exhaust pipe 28 is directly discharged to the discharge pipe 60 through the lower end of the branch pipe 26.

In this state, when the apparatus is operated for treatment, the vacuum-type vacuum pump 10 is driven to form a vacuum, so that foreign substances such as saliva, pus, and calculus from the patient's mouth through the suction tip of the unit- So that the wastewater contained therein is sucked into the upper portion of the cyclone gas-liquid separator 21 along the suction pipe 40. Then, the sucked wastewater is completely separated from the air and the fluid containing foreign matters by the vacuum speed in the cyclone gas-liquid separator 21, so that the foreign matter is stored in the lower portion of the cyclone gas-liquid separator 21, 50 into the water-sealed vacuum pump 10.

Therefore, not only the water in the vacuum pump 10 is not contaminated by the saliva, but also the possibility that the impurities are piled up in the impeller is reliably prevented, the efficient operation is possible and the damage due to the overload is suppressed as much as possible, have.

The wastewater containing the saliva and the smell separated from the air is continuously stored in the foreign matter reservoir 22 until the level sensor 29 provided in the cyclone gas-liquid separator 21 detects the full state of the foreign matter, When the level sensor 29 detects this and sends the signal to the control unit, the first three-way valve 27a blocks the foreign matter discharge port 23 of the cyclone gas-liquid separator 21 by a signal from the control unit The second three-way valve 27b opens the outlet 25 of the foreign matter reservoir 22 and communicates with the discharge pipe 60. [

The lower end of the branch pipe 26 is closed and the upper end of the branch pipe 26 is connected to the inlet port 24 of the foreign substance reservoir 22 so that the discharge pressure of the water pump type vacuum pump 10 is supplied to the foreign matter storage chamber 22 through the exhaust pipe 28 . Thus, unlike in the prior art, it is possible to forcibly discharge the foreign matter in the foreign matter reservoir 22 while the vacuum is applied to the cyclone gas-liquid separator 21 without interrupting the suction apparatus 1.

The foreign matter discharged from the foreign matter reservoir 22 is in a normal temperature state, passes through the cooler 32 and is heat-exchanged with the recycled water to cool the septum appropriately and is drawn into the subsequent ozone generator 90, sterilized and discharged to the sewer. At this time, the foreign matter discharged from the foreign matter reservoir 22 is in a concentrated state, and sterilizing treatment can be sufficiently performed even with the inexpensive small ozone generator 90.

On the other hand, the sewage discharged from the vacuum-type vacuum pump 10 through the discharge pipe 80 flows into the upper portion of the sewage tank 31 of the sewage recirculation unit 30 so that the sewage is stored in the sewage tank 31, Is discharged to the branch pipe (26) of the cyclone centrifugal means (20) along the exhaust pipe (28) connected to the upper end of the tank (31). Since the sewage tank 31 also takes the form of a cyclone, the sewage and air can be more reliably separated.

As described above, since the seams separated from the air and stored in the septic tank 31 are mixed with the clean air completely separated from the foreign substances such as saliva by the cyclone gas-liquid separator 21 and are not contaminated at all, Is sufficiently reusable.

The sewage stored in the sewage tank 31 is supplied quantitatively by a predetermined amount to the vacuum-type vacuum pump 10 again by the sewage constant amount feed pump 33, thereby achieving the highest vacuum efficiency. Particularly, since the sewage discharged from the vacuum pump 10 is recycled to the vacuum pump 10, the consumption of the sewage is drastically reduced, so that the suction apparatus 1 can be operated only with the minimum supply of water.

On the other hand, the temperature of the seawater may be raised by recirculation of the seawater. In the present invention, the recirculated seawater is circulated through the cooler 32 for exchanging heat with the foreign substances in the room temperature state separated and discharged from the cyclone gas- ). As a result, the cavitation phenomenon due to the rise in the temperature of the seawater is effectively suppressed, thereby enabling continuous operation in a stable state.

In addition, in the cold weather in the winter season, the external water supply source sometimes freezes and the suction device 1 can not be operated. However, since the present invention is a method of recirculating the water in the sewage tank 31 provided in the apparatus, Even if the source of water freezes, it may not be affected by the patient's treatment.

2 shows another embodiment of a fully automatic wet suction apparatus for a dental unit chair according to the present invention.

In this embodiment, another configuration of the cyclone centrifuge is applied in the configuration of the above-described embodiment, and the rest of the configurations are substantially the same except for this, so that only different portions will be described for convenience.

2, the cyclone centrifugal separator 120 is provided with two cyclone gas-liquid separators 121 and 122 in a manner that separates and stores foreign substances alternately with each other , And vacuum destruction means for selectively destroying the vacuum of the respective cyclone gas-liquid separators (121) and (122).

Each of the cyclone gas-liquid separators 121 and 122 has cone portions 121a and 122a at the lower end thereof and has foreign matter discharge ports 123 and 124 at the respective cone portions 121a and 122a. The foreign matter discharge ports 123 and 124 are connected to the discharge pipe 60 by respectively having first and second check valves 133 and 134.

Around the upper end of the first cyclone gas-liquid separator 121 is connected to a suction tip (not shown) of the unit chair through a first suction pipe 125, and around the upper end of the second cyclone gas- And the inlet is connected to the suction tip by a second suction pipe 126 which is connected to the first suction pipe 125 through a fourth three way valve 127.

The upper end of the first cyclone gas-liquid separator 121 is connected to the air inlet 12 of the water-sealed type vacuum pump 10 through the first intake pipe 128 and the upper end of the second cyclone gas- Way valve 130 is connected to the air inlet 12 of the vacuum pump 10 by the second intake pipe 129 connected to the first intake pipe 128 through the fifth three-

The vacuum breaker includes a vacuum breaker pipe 131 having one end connected to the first suction pipe 125 and the other end connected to the second suction pipe 129 so as to be positioned downstream of the fourth three way valve 127, And a sixth three-way valve 132 installed in the vacuum break pipe 131 for selectively communicating the first and second cyclone gas-liquid separators 121 and 122 with the atmosphere.

In this case, unlike the above-described embodiment, the exhaust pipe 28a provided at the upper end of the sewage tank 31 may be exposed to the atmosphere as it is.

Meanwhile, first and second level sensors 135 and 136 for detecting the level of the separated foreign substances and sending them to the control unit are provided in the first and second cyclone gas-liquid separators 121 and 122, respectively .

The cyclone centrifugal separator 120 having the above-described structural features is configured such that the second suction pipe 126 is first closed by the fourth three-way valve 127 and the second suction pipe 126 is closed by the fifth three- 2 suction tube 129 is closed and vacuum by the water-sealed vacuum pump 10 is applied to the suction tip through the first cyclone gas-liquid separator 121 and the first suction pipe 125. At this time, the sixth three-way valve 132 disconnects the first cyclone gas-liquid separator 121 from the atmosphere and connects the second cyclone gas-liquid separator 122 to the atmosphere. The first check valve 133 provided in the foreign matter outlet 123 of the first cyclone gas-liquid separator 121 is closed.

Accordingly, the wastewater containing the saliva sucked from the oral cavity of the patient flows into the first cyclone gas-liquid separator 121 through the first suction pipe 125 to completely separate the air and foreign matter by the vacuum speed, The liquid foreign substance contained in the liquid is separated and stored in the bottom of the first cyclone gas-liquid separator 121, and pure pure air is introduced into the water-sealed vacuum pump 10 through the first intake pipe 128.

When the liquid foreign matter is stored in the first cyclone gas-liquid separator 121 to a predetermined level by the above-described operation, the first level sensor 135 detects it and sends it to the control unit. The fourth three-way valve 127 connects the first suction pipe 125 to the second suction pipe 126 to connect the suction tip to the second cyclone gas-liquid separator 122, Way valve 130 connects the second intake pipe 129 to the first intake pipe 128 so that the second cyclone gas-liquid separator 122 is vacuumed.

Then, the liquid foreign substance sucked from the oral cavity of the patient flows into the second cyclone gas-liquid separator 122 at this time, and is completely separated from the air by the vacuum speed and stored.

At the same time, the sixth three-way valve 132 connects the first cyclone gas-liquid separator 121 to the atmosphere while blocking the second cyclone gas-liquid separator 122 from the atmosphere, 1 foreign material outlet 123 of the cyclone gas-liquid separator 121 is opened. Accordingly, the foreign matter in the concentrated state stored in the first cyclone gas-liquid separator 121 is discharged through the discharge pipe 60 by the atmospheric pressure, flows into the ozone generator 90 after passing through the cooler 32, And sterilized.

When the foreign matter stored in the second cyclone gas-liquid separator 122 is fully charged, the second level sensor 136 senses the foreign matter and sends it to the control unit. Accordingly, A vacuum is formed in the clone gas-liquid separator 121, and air is discharged to the second cyclone gas-liquid separator 122 through the discharge pipe 60.

In this embodiment as well, as described above, it is possible to easily and automatically discharge the separated and stored foreign matter even when the vacuum is formed without stopping the operation of the suction apparatus 1. [

3 shows another embodiment of a fully automatic wet suction apparatus for a dental unit chair according to the present invention.

In this embodiment, in the construction of the second embodiment described above, the vacuum breaking means is connected to the first suction pipe 125 so that one end thereof is located downstream of the fourth three-way valve 127, and the other end is connected to the second suction pipe 129 An exhaust pipe 28b connected to the upper end of the sewage tank 31 and the other end connected to the vacuum destruction pipe 131 through a seventh three way valve 137, .

In this second embodiment, in order to destroy the vacuum of the first or second cyclone gas-liquid separator 121 (122), the discharge air pressure , The duplicate description will be avoided for the sake of convenience.

10: Pneumatic vacuum pump 11: Bleed inlet
12: air inlet 13: outlet
20: cyclone centrifugal means 21; Cyclone gas-liquid separator
22: foreign matter reservoir 23: foreign matter outlet
24: inlet 25: outlet
26: branch pipes 27a, 27b: first and second three-way valves
28, 28a, 28b: exhaust pipe 29: level sensor
30: Sewage recirculation unit 31: Sewage tank
32: Cooler 33: Sealed water feed pump
35a, 35b: level sensor 40: suction pipe
50: intake pipe 60: exhaust pipe
70: Boss supply pipe 80: Discharge pipe
90: ozone generator 100: water supply pipe
101: Third three-way valve 120: Cyclone centrifugal separator
121 and 122: First and second cyclone gas-liquid separators
125, 126: first and second suction pipes 127: fourth four-way valve
128, 129: first and second intake pipes 130: fifth five-way valve
131: vacuum break tube 132: sixth three way valve
133, 134: first and second check valves 135, 136: first and second level sensors
137: seventh three-way valve

Claims (11)

A fully automatic wet-type suction device for applying vacuum to a suction tip of a dental unit chair,
A water-sealed vacuum pump having a seal-in inlet, an air inlet, and an outlet through which the fluid sucked through the seal and air inlet is discharged;
A cyclone centrifugal means for separating and removing the wastewater containing foreign substances sucked from the oral cavity of the patient, the upper end of the cyclone centrifugal separator being connected to the air inlet of the water-sealed vacuum pump and the upper end thereof being connected to the suction tip of the unit chair;
And a cooling means for cooling the sludge supplied from the siphon tank to the water-sealed vacuum pump, wherein the bottom of the siphon tank is connected to a siphon inlet of the water-sealed vacuum pump, an upper end of the siphon tank is connected to an outlet of the water- And a sewing water recirculation unit including a sewing water amount supply pump for supplying the sewing water in the sewing water tank by a predetermined amount by the water type vacuum pump.
[2] The apparatus according to claim 1,
A cyclone gas-liquid separator having an upper end connected to an air inlet of the water-sealed vacuum pump and an upper end connected to a suction tip of the unit chair and having a foreign matter outlet at a lower end thereof; A branch pipe having both ends connected to a foreign matter discharge port of the cyclone gas-liquid separator and an outlet port of the foreign matter reservoir through a three-way valve, and a discharge port And an exhaust pipe connecting the branch pipes to the main body of the dental unit.
The method of claim 2,
Wherein the cyclone gas-liquid separator is provided with a level sensor for detecting a level of a foreign substance.
The method according to claim 2 or 3,
Further comprising an ozone generator for sterilizing the concentrated foreign substances discharged from the foreign matter reservoir.
The method of claim 2,
Wherein the cooler of the sewer recirculation unit cools the sewing water by mutually exchanging the foreign matter discharged from the foreign matter reservoir and the sewer supplied from the sewer tank.
[2] The apparatus according to claim 1,
A first suction pipe for connecting a suction tip of the unit chair to an upper end of the first cyclone gas-liquid separator, and a second suction pipe connected to the first suction pipe, A second suction pipe connected to the first suction pipe via a fourth three-way valve and having an outlet connected to an upper end of the second cyclone gas-liquid separator, an upper end of the first cyclone gas- A second intake pipe connected to an upper end of the second cyclone gas-liquid separator and having an outlet connected to the first intake pipe through a fifth three-way valve, 1. A fully automatic wet suction apparatus for a dental unit chair, characterized by comprising vacuum breaking means for selectively breaking a vacuum of the first and second cyclone gas / liquid separators.
The method of claim 6,
Wherein the first and second cyclone gas-liquid separators are provided with a level sensor for detecting the level of a foreign substance.
The method according to claim 6 or 7,
Further comprising an ozone generator for sterilizing foreign substances discharged from the first and second cyclone gas-liquid separators.
The method of claim 6,
Wherein the cooler of the sewer recirculation unit cools the sewing water by mutually exchanging the foreign matter discharged from the first and second cyclone gas-liquid separators and the sewer supplied from the sewer tank, .
The vacuum cleaner according to claim 6,
A vacuum break tube having one end connected to the first suction pipe so as to be located downstream of the fourth three-way valve and the other end connected to the second suction pipe; and a vacuum breaker pipe provided in the vacuum breaker pipe, And a sixth three-way valve for selectively connecting any one of the separators to the atmospheric air.
The vacuum cleaner according to claim 6,
A vacuum break tube having one end connected to the first suction pipe so as to be located downstream of the fourth three-way valve and the other end connected to the second suction pipe; And an exhaust pipe connected to the pipe through a seventh three-way valve.

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