KR20120069927A - Oral cleaner for multiple user - Google Patents

Abstract

PURPOSE: An oral cleaner for multiple user is provided to be able to mount a plurality of nozzle guns to one oral cleaner because of equipping with a high pressure tank in which high pressure cleaning water is stored, thereby capable of cleaning tooth of many users at the same time. CONSTITUTION: An oral cleaner for multiple user comprises a main water tank(110), a fluorine solution container (120), a pressure pump(130), pulsation control valves(150a-150c), water flow sensing parts(140a-140c), and a main control unit(160). The main water tank discharges raw water to a raw water supply flow path(21). The fluorine solution container mixes the raw water and the fluorine solution to specific ratio. The fluorine solution is selectively discharge fluorine solution to the water supply path. The pressure pump receives cleaning water in which the raw water and the fluorine solution are mixed, and presses by specific pressure. The pulsation control valve receives the cleaning water of high pressure from a high pressure tank(131) and transfers to a nozzle gun(10).

Description

Oral Cleaner for Multiple People {Oral Cleaner For Multiple User}

The present invention relates to a multi-use mouthwasher, and more particularly to a multi-use mouthwasher provided so that a plurality of users can simultaneously clean the teeth by using the wash water mixed with fluorine solution.

In general, the mouthwasher refers to a device for ejecting high-pressure washing water into a thin nozzle tube of a nozzle gun to remove foreign substances stuck between teeth.

The conventional mouthwasher is composed of a tank for storing a predetermined amount of the wash water, a pump for providing a pressure to discharge the washing water stored in the tank at a high pressure, and a nozzle gun for ejecting the high pressure washing water discharged from the pump to the outside. .

However, since only one nozzle gun is installed in the main body of a conventional mouthwasher, in order to use for a large number of people, the nozzle tube mounted at the end of the nozzle gun has to be replaced for each individual person. Since the teeth can be washed, a large number of people were uncomfortable to wash.

Also, in order to brush teeth by using a mouthwash, such as a school or a company, several mouthwashers must be disposed, so that the mouthwashes of several mouthwashes can be performed by the necessary people within a predetermined time such as lunch time. In addition to the installation cost for disposing the scrubber, as well as having a large number of mouthwashes in a limited space, such as toilets and washrooms have caused a problem that the internal space is narrow.

The present invention has been made to solve the above-mentioned problems, an object of the present invention is to provide a multi-use mouthwasher provided to allow a large number of users to clean the teeth at the same time using the washing water mixed with fluorine solution. .

Multi-use oral cleaning device of the present invention, the main water tank 110 to receive the raw water from the raw water supply source (S) to store a certain amount and to discharge the raw water to the raw water supply passage (21); A fluorine solution storage tank 120 for storing a fluorine solution and selectively discharging the fluorine solution on the raw water supply passage 21 so that the raw water and the fluorine solution are mixed at a predetermined ratio; A pressure pump 130 which receives the washing water mixed with the raw water and the fluorine solution and pressurizes it to a pressure of a predetermined size and stores it in the high pressure tank 131 connected to the rear end; The high pressure washing water is supplied from the high pressure tank 131 and delivered to the nozzle gun 10, and the opening area and the opening / closing period are selectively opened so that the washing water is pulsated at a predetermined interval. Pulsation control valve 150 that operates by repeating closing; A water flow sensing unit 140 mounted on the washing water supply passage 22 connecting the pulsation control valve 150 and the nozzle gun 10 to detect the flow of the washing water; And centrally controlling the operation of each of the control valves 115, 116, 121, 150, the pressure pump 130, and the high pressure tank 131, and the washing water pulsating on the basis of the flow information of the washing water transmitted from the water flow sensing unit 140. It includes; the main controller unit 160 for controlling the pulsation control valve 150 to be delivered to the nozzle gun (10).

Here, one side of the high pressure tank 131, the pressure sensor unit 133 for detecting the magnitude of the internal pressure of the high pressure tank 131 is provided, the pressure pump 130, the pressure sensor unit 133 Based on the pressure information sensed in the), it can be provided to drive only when the internal pressure of the high pressure tank 131 is a predetermined size or less to increase the internal pressure of the high pressure tank 131.

Meanwhile, the washing water supply passage 22 through which the high pressure washing water is transferred from the high pressure tank 131 may include a plurality of branching passages 22a, 22b and 22 so that the washing water is individually supplied to the plurality of nozzle guns 10a, 10b, and 10c. 22c), each branch flow path (22a, 22b, 22c) is provided with a water flow detection unit (140a, 140b, 140c) and pulsation control valves (150a, 150b, 150c), the main controller unit 160 ), According to the distance (d1, d2, d3) between the case 101 and each nozzle gun (10a, 10b, 10c) so that the washing water of the same pressure is injected from each nozzle gun (10a, 10b, 10c) By controlling the opening area of each pulsation control valve 150a, 150b, 150c, it is controlled to supply the differential pressure washing water for each of the branch flow paths 22a, 22b, 22c connected to each nozzle gun 10a, 10b, 10c. can do.

As described above, according to the present invention,

First, since a high pressure tank is provided in which a certain amount of high pressure washing water is stored, and a plurality of nozzle guns can be installed in a single mouthwash, a plurality of users can simultaneously clean teeth.

Second, the washing water is stored in the high pressure tank at a predetermined pressure by the pressure pump, and the pressure pump is driven only when the internal pressure of the high pressure tank falls below a certain size, thereby reducing power consumption.

Third, the pulsation control valve is operated by repeating the opening and closing with the opening area and the opening / closing period controlled, so that foreign matter between the teeth can be effectively removed by using the pulsating washing water. The pulsation interval of the wash water can be adjusted.

Fourth, since the washing water is pulsated by sensing the flow of the washing water flowing in the washing water supply passage, electrical signal lines between the nozzle gun and the main body are unnecessary, and the configuration of the nozzle gun is simplified.

Fifth, since the washing water stored in the main tank can be heated or cooled according to the external environment, the user can always maintain the proper temperature suitable for washing the teeth.

1 is a block diagram showing the configuration of a multi-use mouthwash according to a preferred embodiment of the present invention, Figure 2 is a schematic diagram showing a state in which the multi-use mouthwash according to a preferred embodiment of the present invention installed in the washbasin, Figure 3 An exploded perspective view showing a constitution of the nozzle gun and the washing water supply passage according to the preferred embodiment of the present invention.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a multi-use mouthwash according to a preferred embodiment of the present invention, Figure 2 is a schematic diagram showing a state in which the multi-use mouthwash according to a preferred embodiment of the present invention installed in the washbasin, Figure 3 An exploded perspective view showing a constitution of the nozzle gun and the washing water supply passage according to the preferred embodiment of the present invention. In FIG. 1, a solid line connecting each component represents a flow path through which raw water or washing water flows, and a dotted line indicates a signal line through which detected information or a control signal of the main controller unit flows. In addition, the washing water means a washing solution in which the raw water and the fluorine solution are mixed at a predetermined ratio.

As shown in Figure 1 and 2, multi-use mouthwash according to a preferred embodiment of the present invention 100, the main water tank 110, fluorine solution reservoir 120, pressure pump 130, pulsation control valve 150, a water flow detection unit 140, and a main controller unit 160 are provided.

First, the main water tank 110 is a component that receives the raw water from the raw water supply source (S) and stores a predetermined amount and discharges the raw water to the raw water supply passage (21), wherein the raw water supply (S) is generally used water pipe Or it may be a groundwater pipe, it may be a large storage tank in which the wash water is stored. In addition, on the raw water supply passage between the raw water supply source (S) and the main water tank 110 may be provided with a water filter 117 for filtering foreign substances contained in the incoming raw water.

In addition, the raw water supply passage is provided with a raw water control valve 116 for opening and closing according to the control signal of the main controller unit 160 to adjust the flow rate of the raw water flowing into the main water tank 110, the main water tank 110 At one side of the main water tank 110 is provided with a water level sensor 113 for detecting the storage amount of raw water stored in the raw water storage amount detection information detected by the water level sensor 113 is the main controller unit Passed to 160. Therefore, when the raw water storage amount in the main water tank 110 sensed by the water level sensor 113 is less than a predetermined amount, the main controller unit 160 opens the raw water control valve 116 to the main water tank 110. The raw water is controlled to be supplied to the inside, and when the raw water storage amount reaches a predetermined amount, the raw water is controlled by closing the raw water control valve 116 to block the supplied raw water. That is, the raw water control valve 116 and the water level sensor 113 performs a function of maintaining a predetermined amount of raw water in the main water tank 110.

In addition, a sterilization unit 114 may be provided inside the main water tank 110 to sterilize and purify the raw water stored in the main water tank 110. The sterilization unit 114 may kill microorganisms. It may be an ultraviolet lamp lighting device irradiated with ultraviolet rays in a high wavelength range.

In addition, the raw water stored in the main water tank 110 is discharged to the raw water supply passage 21 through the raw water control valve 115 connected to the lower portion of the main water tank 110, the raw water control valve 115 is the main It may be controlled to be opened and closed selectively according to the control signal of the controller unit 160.

The fluorine solution storage tank 120 is a component for storing the fluorine solution and selectively discharging the fluorine solution on the raw water supply passage 21 so that the raw water and the fluorine solution are mixed at a predetermined ratio. The fluorine solution stored in the 120 is discharged into the raw water supply passage 21 through the fluorine solution control valve 121 connected to the lower portion of the fluorine solution reservoir 120, and the fluorine solution control valve 121 is the main controller. It may be controlled to open and close selectively according to the control signal of the unit 160.

Here, the fluorine content contained in the wash water may vary according to the discharge of the raw water discharged from the main water tank 110 and the discharge of the fluorine solution discharged from the fluorine solution storage tank 120. The fluorine solution contains an appropriate amount of fluorine. In the case of the washed water has the effect of removing bad breath and preventing tooth decay, but when it is contained in a large amount, side effects such as spots such as white, yellow and brown may occur on the tooth surface, multi-purpose mouthwash according to the present invention It is preferable that the amount of fluorine is controlled to be contained in the washing water in consideration of the place where the 100 is installed or the age group to be used, in particular, the availability of the infant.

The pressure pump 130 is a component that receives the washing water mixed with the raw water and the fluorine solution and pressurizes it to a predetermined size and stores it in the high pressure tank 131 connected to the rear end.

Here, one side of the high pressure tank 131 is provided with a pressure sensor unit 133 for detecting the magnitude of the internal pressure of the high pressure tank 131, the pressure information detected by the pressure sensor unit 133 is the main controller Delivered to unit 160.

Therefore, when the internal pressure of the high pressure tank 131 sensed by the pressure sensor unit 133 is less than or equal to a predetermined size, the main controller unit 160 drives the pressure pump 130 of the high pressure tank 131. When the internal pressure is increased and the predetermined size is reached, the driving of the pressure pump 130 is stopped to control the internal pressure to maintain the predetermined size. That is, the pressure pump 130 performs a function of maintaining the washing water stored in the high pressure tank 131 with a predetermined size of pressure.

As such, the high pressure tank 131 is provided to store the washing water in a high pressure state, and the pressure pump 130 is driven only when the internal pressure of the high pressure tank 131 falls below a predetermined size, thereby reducing power consumption. Can be.

The pulsation control valve 150 operates according to the control signal of the main controller unit 160 and receives the high pressure washing water from the high pressure tank 131 and delivers the washing water to the nozzle gun 10 at a predetermined interval. It is a component that operates repeatedly by opening and closing with the opening area and the opening / closing period being selectively controlled to deliver the washing water in the surging state.

Here, when the washing water sprayed through the nozzle gun 10 is ejected in the form of a continuous stream of water, foreign matter between teeth is pushed in without falling out. Therefore, in the multi-use mouthwasher 100 according to a preferred embodiment of the present invention, by spraying the washing water in the form of a stream of water cut through the pulsation control valve 150 is provided to more effectively remove the foreign matter between the teeth.

In addition, the opening area of the pulsation control valve 150 is an area in which a blocking film for opening and closing the pulsation control valve 150 is opened, and when the opening area is increased, the flow rate of the washing water flowing through the pulsation control valve 150 is increased. This increases the pressure of the washing water relatively, and when the opening area becomes smaller, the flow rate of the washing water flowing through the pulsation control valve 150 is reduced, so the pressure of the washing water is relatively reduced. In addition, the pulsation control valve 150 repeats the opening and closing of the blocking membrane to generate pulsating water flow in the washing water as described above, wherein the opening and closing cycle is a cycle in which the blocking membrane of the pulsating control valve 150 is opened and closed once. it means. Accordingly, the pulsation control valve 150 may increase or decrease the strength of the pressure of the washing water sprayed through the nozzle gun 10 because the opening area is adjusted, and the opening / closing period may be adjusted so that the pulsation control valve 150 may be separated through the nozzle gun 10. It is possible to adjust the pulsation interval (the length of the disconnected stream) of the washing water.

Here, the pulsation control valve 150, when the internal flow path of the nozzle gun 10 is normally opened by the operation switch 12 of the nozzle gun 10, the washing water discharged from the high pressure tank 131 flows It is desirable to keep the opening more than the minimum opening area.

The water flow detection unit 140 is mounted on the washing water supply passage 22 that interconnects the pulsation control valve 150 and the nozzle gun 10 to the washing water flowing inside the washing water supply passage 22. It is a sensor to detect flow.

One side of the nozzle gun 10 is provided with an operation switch 12 for opening and closing the internal flow path of the internal nozzle gun 10 so that the washing water introduced through the nozzle pipe 11 is connected, the operation When the internal flow path of the nozzle gun 10 is opened by the switch 12 and the washing water flows into the washing water supply flow passage 22, the water flow sensing unit 140 detects the flow of the washing water and detects the information. Is transmitted to the main controller unit 160, and the main controller unit 160 determines that the user uses the nozzle gun 10 on the basis of the detected information of the flow of the wash water, The pulsation control valve 150 is driven at the opening and closing cycle to control the washing water in the pulsating state to be delivered to the nozzle gun 10.

The main controller unit 160 is a component for centrally controlling the operation of each of the control valves 115, 116, 121, 150, the pressure pump 130 and the high pressure tank 131 of the multi-use mouthwasher 100 according to the present invention. 101. The multi-use mouthwasher 100 is controlled to be driven according to the stored settings through the key input unit 170 provided outside.

Here, the key input unit 170 is a user input means operated to allow the user to selectively adjust the details of the temperature of the washing water, the fluorine solution content ratio, the spray pressure of the washing water, and the pulsation period. Therefore, the main controller unit 160, the control valves 115, 116, 121, 150, heating and cooling 112, the pressure pump 130, the high pressure tank 131, etc. according to the set by the key input unit 170. To control.

On the other hand, the multi-person oral cleaner 100 according to the present invention is provided such that a plurality of nozzle guns 10 are mounted on one body so that a plurality of users can simultaneously clean the teeth.

To this end, the washing water supply passage 22 through which the high pressure washing water is transmitted from the high pressure tank 131 is provided with a plurality of branching passages 22a and 22b such that the washing water is individually supplied to the plurality of nozzle guns 10a, 10b, and 10c. It is branched into 22c, and each branch flow path 22a, 22b, 22c is equipped with the water flow detection part 140a, 140b, 140c, and the pulsation control valve 150a, 150b, 150c, respectively.

In addition, when the multi-use mouthwasher 100 according to the present invention is installed in the washrooms, such as schools and companies, the main body is disposed on one side of the installation place, as shown in Figure 2, so that the individual can wash the teeth One nozzle gun 10a, 10b, 10c may be installed on each nozzle gun holder 180 for each vanity and mirror. That is, the length of the washing water supply passage 22 that connects the pulsation control valves 150a, 150b, 150c and the nozzle guns 10a, 10b, 10c with each other in proportion to the distance from the main body is arranged.

However, as the length of the washing water supply passage 22 increases, the pressure of the washing water sprayed through the nozzle gun 10 decreases, so that the nozzle gun 10a disposed at a position close to the main body is spaced apart from the main body. The pressure of the washing water sprayed through the nozzle gun 10c may show a large difference.

Therefore, the main controller unit 160, the separation distance between the case 101 and each nozzle gun (10a, 10b, 10c) so that the washing water of the same pressure is injected from each nozzle gun (10a, 10b, 10c) The opening area of each pulsation control valve 150a, 150b, 150c is adjusted according to d1, d2, d3, and is differentiated for each branch flow path 22a, 22b, 22c connected to each nozzle gun 10a, 10b, 10c. Control to supply washing water at the pressure.

Here, in FIG. 2, the distances d1, d2, and d3 between the case 101 and the nozzle guns 10a, 10b, and 10c are each nozzle guns 10a, 10b, and 10c from the center of the case 101. Is shown to be installed horizontal position, but is not limited to this, more preferably, the inflow of each nozzle gun (10a, 10b, 10c) from the output end of each of the pulsation control valves (150a, 150b, 150c) from which the washing water is ejected It represents the distance to the stage.

In addition, reference numeral 102 shown in FIG. 2 is a screen display unit, as well as the current operating state of the multi-use mouthwasher 100 according to the present invention, as well as the setting state of the main controller unit 160 can be displayed. In addition, the temperature of the washing water, the magnitude of the pressure and the fluorine content may be displayed.

On the other hand, in general, the mouthwasher is provided to be detachable from the nozzle gun nozzle tube to the washing water is sprayed in terms of individual hygiene management, individual nozzle tube for each individual is used to fasten the nozzle gun.

Multi-use mouthwasher 100 according to the present invention, as shown in Figures 2 and 3, the nozzle tube 11 is provided to be detachable from the nozzle gun 10 is provided to be used to replace the individual At the end of the washing water supply passage 22 to which the nozzle gun 10 is fastened, the nozzle gun 10 may be selectively detachable.

To this end, the nozzle gun 10 is fastened to the end of the washing water supply passage 22 receives the washing water discharged from the high pressure tank 131, the end of the nozzle gun 10, the nozzle gun Is coupled to the coupler b (23) formed at the end of the washing water supply passage 22 in a state in which the internal flow path of the (10) and the washing water supply passage 22 are in communication with each other or selectively removed from the coupler b (23) Coupler a 13 is provided.

Here, the coupler a (13) and the coupler b (23) is a fastener formed in a male and female shape corresponding to each other, selectively detaching two members in the technical field to which the present invention belongs, such as a coupling method by a female screw and a male screw. Various coupling methods that can be fastened as much as possible can be applied. In addition, between the coupler a 13 and the coupler b 23, sealing rings 14 and 15 formed in a rubber or silicon shape to seal the inside may be disposed.

As described above, since the nozzle gun 10 is detachably provided at the end of the washing water supply passage 22, it is possible to use a personal nozzle gun carried for each individual, so that the tooth can be washed more hygienically. Maintenance and cleaning of the nozzle gun 10 can be implemented to facilitate the effect.

Next, the operation principle of the multi-person oral cleaner 100 according to the preferred embodiment of the present invention will be described.

First, the raw water control valve 116 is opened according to the control signal of the main controller unit 160 to supply raw water from the raw water supply source S into the main water tank 110. At this time, the purified water filter 117 is disposed on the raw water supply flow path for supplying the raw water to filter foreign matter contained in the raw water, and the raw water stored by the sterilization unit 14 provided in the main water tank 110. Sterilized and purified.

At this time, when the water flow detection unit 140 reaches the preset storage amount by detecting the storage amount of the raw water stored in the main tank 110, the raw water control valve 116 according to the control signal of the main controller unit 160 Is shut off to prevent further inflow of raw water.

The raw water stored in the main water tank 110 is opened in accordance with the control signal of the main controller unit 160 is discharged through the raw water supply passage 21 and at the same time the fluorine solution control valve 121 The fluorine solution is discharged onto the raw water supply passage 21 by opening the set opening area, and the raw water and the fluorine solution are mixed at a constant ratio. In addition, the washing water mixed with the raw water and the fluorine solution is pressurized by the pressure pump 130 is stored in the pressure of the preset pressure inside the high-pressure tank 131, the high-pressure tank ( The internal pressure of 131 is maintained at an appropriate level.

Then, when the user operates the operation switch 12 by operating the operation switch 12 of each nozzle gun (10a, 10b, 10c), the internal flow path of each nozzle gun (10a, 10b, 10c) is opened When the washing water flows, each of the water flow sensing units 140a, 140b, and 140c provided in each of the branch passages 22a, 22b, and 22c senses the flow of the washing water, and senses the water flow detected by the main controller unit 160. Communicate information Accordingly, the main controller unit 160 controls the pulsation control valve of the branch flow path connected to the nozzle gun in which the flow of the washing water is sensed, so that the main controller unit 160 operates at a predetermined opening area and opening / closing period. At this time, the nozzle gun (10a, 10b, 10c) to the nozzle gun disposed at a position relatively distant than the pressure of the washing water supplied to the nozzle gun disposed at a close position according to the separation distance (d1, d2, d3) disposed By increasing the pressure of the supplied washing water, the nozzle water 10a, 10b, 10c is controlled to spray the washing water of the same pressure.

As described above, by each configuration of the multi-use mouthwasher 100 according to a preferred embodiment of the present invention, a plurality of nozzle guns (10a, 10b, 10c) can be mounted on a single body, a plurality of users Can clean the teeth at the same time, as well as foreign matter between the teeth effectively by using the pulsating state of the pulsation through the pulsation control valve 150 operates by repeating the opening and closing in a state that the opening area and the opening and closing cycle is controlled Of course, it is possible to remove, as well as to selectively adjust the pulsation interval of the wash water.

In addition, since the washing water is pulsated by sensing the flow of the washing water flowing in the washing water supply passage 22, electrical signal lines between the nozzle gun 10 and the main body are unnecessary, and the configuration of the nozzle gun 10 is simplified. In addition, since the washing water stored in the main water tank 110 may be heated or cooled according to the external environment, the user always maintains the proper temperature suitable for washing the teeth.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

100 multi-use mouthwash 110 main water tank
120 fluorine solution reservoir 130 pressure pump
140 (140a, 140b, 140c) ... water flow detector
150 (150a, 150b, 150c) ... pulse control valve
160 ... Main Controller Unit

Claims (4)

A main water tank 110 receiving raw water from a raw water supply source S and storing a predetermined amount and discharging the raw water to the raw water supply passage 21;
A fluorine solution storage tank 120 for storing a fluorine solution and selectively discharging the fluorine solution on the raw water supply passage 21 so that the raw water and the fluorine solution are mixed at a predetermined ratio;
A pressure pump 130 which receives the washing water mixed with the raw water and the fluorine solution and pressurizes it to a pressure of a predetermined size and stores it in the high pressure tank 131 connected to the rear end;
The high pressure washing water is supplied from the high pressure tank 131 and delivered to the nozzle gun 10, and the opening area and the opening / closing period are selectively opened so that the washing water is pulsated at a predetermined interval. Pulsation control valve 150 that operates by repeating closing;
A water flow sensing unit 140 mounted on the washing water supply passage 22 connecting the pulsation control valve 150 and the nozzle gun 10 to detect the flow of the washing water; And
The central control of the operation of each control valve (115, 116, 121, 150), the pressure pump 130 and the high pressure tank 131, the washing water in the pulsating state on the basis of the flow information of the washing water delivered from the water flow detection unit 140 nozzle And a main controller unit (160) for controlling the pulsation control valve (150) to be delivered to the gun (10).
The method of claim 1,
One side of the high pressure tank 131, the pressure sensor unit 133 for detecting the size of the internal pressure of the high pressure tank 131 is provided,
The pressure pump 130 is driven only when the internal pressure of the high pressure tank 131 is smaller than or equal to a predetermined size, based on the pressure information detected by the pressure sensor unit 133, so that the inside of the high pressure tank 131 is operated. Multi-use mouthwash, characterized in that to increase the pressure.
The method of claim 1,
The washing water supply passage 22 through which the high pressure washing water is transferred from the high pressure tank 131 may include a plurality of branching passages 22a, 22b, and 22c so that the washing water is individually supplied to the plurality of nozzle guns 10a, 10b, and 10c. Branched to each of the flow passages (22a, 22b, 22c) are provided with the respective water flow detection unit (140a, 140b, 140c) and pulsation control valve (150a, 150b, 150c),
The main controller unit 160 has a distance d1 between the case 101 and the nozzle guns 10a, 10b, and 10c such that the washing water having the same pressure is injected from the nozzle guns 10a, 10b, and 10c. Differential pressure for each branch flow path 22a, 22b, 22c connected to each nozzle gun 10a, 10b, 10c by adjusting the opening area of each pulsation control valve 150a, 150b, 150c according to d2, d3). Multi-use mouthwasher characterized in that to control the supply of the wash water.
The method according to any one of claims 1 to 3,
The nozzle gun 10 is fastened to the end of the washing water supply passage 22 to receive the washing water discharged from the high pressure tank 131,
At the end of the nozzle gun 10, a coupler b 23 formed at the end of the washing water supply passage 22 in a state in which the internal flow path of the nozzle gun 10 and the washing water supply passage 22 are in communication with each other. Multi-use mouthwasher characterized in that the coupler (13) is coupled or selectively removed from the coupler (23).

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