JPH063561Y2 - Gargle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a gargle device in which water and a chemical solution are mixed and a mouthwash solution is automatically ejected from a nozzle.

[Conventional technology]

Conventionally, for example, as described in Japanese Utility Model Publication No. 52-18636, tap water is made to flow into a suction mixing section by opening a water supply valve, and a chemical solution is suctioned by the ejector effect in this suction mixing section to properly mix with water. At the same time, a gargle device is known in which a mixed gargle liquid is ejected from a nozzle.

This type of gargling device does not require a power means for discharging water or a chemical solution, uses the water pressure of tap water to suck the chemical solution, and automatically and properly mixes the water and the chemical solution, which is extremely convenient. It is widely used in hospitals, factories and schools.

[Problems to be solved by the device]

However, the first problem of the gargle device is that the chemical solution or the mixed solution thereof may flow back into the water pipe when the water pipe has a negative pressure due to a water leakage accident or construction. . To solve this, a check valve may be provided in the water pipe, but this can prevent the backflow of the drug solution or the mixed solution, but the mixed solution will stay in the suction mixing section, and It's hygiene.

The second problem is that when tap water is caused to flow into the suction mixing section to generate a negative pressure due to the ejector effect, the outflow of the chemical solution is delayed, and an appropriate mixing ratio is obtained when the mouthwash is jetted out early or when the amount of water is small. It is difficult to obtain. That is, a check valve is provided between the suction mixing section and the chemical solution tank to prevent backflow of water or the mixed solution into the chemical solution tank. However, when the check valve has a strong closing force, As described above, when the outflow of the chemical liquid is delayed and the closing force of the check valve is weak, the effect of preventing backflow is reduced.

Therefore, a first object of the present invention is to prevent backflow of a chemical solution or a mixed liquid into the water pipe even if the water pipe becomes a negative pressure, and also to prevent the mixed liquid from staying in the suction mixing section. The purpose is to provide a gargling device.

A second object is to provide a gargle device which has an excellent effect of preventing backflow in the chemical liquid passage and which can easily obtain an appropriate mixing ratio even at the initial stage of jetting of the gargle liquid and when the amount of water is small.

[Means for Solving the Problems]

In order to achieve the above-mentioned first object, the first invention is to provide a check valve that opens when the water pressure flowing through the water passage connecting the water supply valve and the suction mixing section becomes a certain value or more, in the water passage. A discharge valve that opens and closes reciprocally with the check valve is provided in a water passage connecting the mixing section and the discharge port.

Further, in order to achieve the second object, the second invention is to provide a chemical solution opening / closing valve having a diaphragm in a chemical solution passage that connects the chemical solution tank storing the chemical solution and the suction mixing section, and the chamber on one side of the diaphragm is provided. A valve body is provided which is connected to a water passage connecting the water supply valve and the suction mixing section and which opens and closes the chemical passage in the opposite chamber. The valve body is spring-biased in the valve closing direction and is connected to the diaphragm. They are linked and are configured so that the valve element is operated in the valve opening direction in conjunction with the deformation of the diaphragm due to water pressure.

[Action]

According to the first invention, the check valve closes the water passage in the unlikely event that the water pipe becomes negative pressure, so that the chemical solution or the mixed liquid does not flow back into the water pipe. Then, since the check valve is closed and the discharge valve is opened at the same time, the mixed liquid accumulated in the suction mixing section is discharged from the discharge port through the discharge valve. Further, when the water supply valve is opened, the check valve is opened and the discharge valve is closed by water pressure, so that water is supplied to the suction mixing section, and the liquid medicine can be sucked by the ejector effect.

According to the second invention, when the water supply valve is opened, a part of the water pressure acts on the diaphragm of the chemical liquid on-off valve to bend the diaphragm and push the valve body against the spring in the valve opening direction. Therefore, even when the negative pressure in the suction mixing section is low, in other words, even in the initial stage of ejection or when the amount of water is small, the chemical solution opening / closing valve can be easily opened and the chemical solution can be quickly supplied to the suction mixing section. Therefore, it is possible to always discharge the mouthwash with an appropriate mixing ratio. Further, when the water supply valve is closed, the diaphragm is restored at the same time and the chemical solution opening / closing valve is closed, so that there is no possibility that water or the mixed solution will flow back to the chemical solution tank.

〔Example〕

1 and 2 show a first embodiment of a gargle device according to the present invention.

A water supply valve 2 connected to the water pipe 1 is provided at the bottom of the gargle device. When the pedal 3 is depressed, the water supply valve 2 is opened, and tap water is introduced to the mixer 6 through the pipes 4 and 5. Get burned.

The mixer 6 is fixed on the top plate 7 of the gargle device. A gargle water introduction pipe 8 and a wash water introduction pipe 9 are attached to the lower portion of the mixer 6, and the pipes 4 and 5 are connected to the introduction pipes 8 and 9, respectively.

The water introduced into the mixer 6 through the gargle water introducing pipe 8 flows upward through the introducing hole 10 and passes through the oblique hole 10a to the inside of the valve seat member 11 screwed to the top of the mixer 6. Supplied. A valve body 12 is disposed below the valve seat member 11 so as to be slidable in the vertical direction and biased upward by a spring 15.
Communication grooves 12a and 12b are provided in the sliding contact portion of the valve body 12 with the mixer 6. Gaskets 13 and 14 are attached to the upper end and the lower end of the valve body 12, respectively. The lower end opening of the valve seat member 11 and the upper gasket 13 form a check valve A. Further, the bottom of the hole 16 accommodating the valve body 12 communicates with a discharge port 17 opened to the outside, and the lower gasket 14 constitutes a discharge valve B for opening and closing the discharge port 17. The check valve A and the discharge valve B open and close reciprocally, and when one valve is closed, the other valve is always open. Although the check valve A and the discharge valve B are provided in the single valve body 12 in this embodiment, they may be provided separately.

A communication port leading to the suction / mixing section C in the middle of the storage hole 16
18 are provided. The suction mixing section C is composed of a jet nozzle 20 and a suction nozzle 21 which are mounted laterally with respect to the mixer 6, and the nozzle diameter of the jet nozzle 20 is smaller than the nozzle diameter of the suction nozzle 21. Immediately in front of the jet nozzle 20 is a water communication hole.
22 is formed, and this communication hole 22 is connected to the chemical liquid opening / closing valve 30 via a connecting pipe 23. Further, a chemical liquid supply hole 24 is formed between the jet nozzle 20 and the suction nozzle 21, and the supply hole 24 is connected to the chemical liquid opening / closing valve 30 via a connecting pipe 25.

The chemical liquid on-off valve 30 is equipped with a diaphragm 31 inside.
The upper chamber 32 of the diaphragm 31 is connected immediately before the ejection nozzle 20 via the connecting pipe 23, and the hydraulic pressure flowing through the suction mixing section C acts on the upper chamber 32. The lower chamber 33 of the diaphragm 31 is connected between the ejection nozzle 20 and the suction nozzle 21 through the connecting pipe 25. Lower room
A valve element 34 is disposed in the valve 33 in a state of being biased upward by a spring 35, and a gasket 36 attached to the outer periphery of the valve element 34 normally closes a valve port 37. The upper end surface of the valve element 34 is always in contact with the lower surface of the diaphragm 31. The connection port 38 formed at the lower end of the chemical liquid opening / closing valve 30 is connected to the chemical liquid tank 40 via a tube 39.

Water and the chemical liquid are mixed in the suction mixing section C, and the mixed liquid (gargle liquid) is jetted upward from the nozzle 42 through the pipe 41. Further, the cleaning water introduced from the water supply valve 2 into the mixer 6 through the pipe 5 and the cleaning water introducing pipe 9 is discharged to the top plate 7 through the cleaning pipe 43. As a result, the dirt on the top plate 7 is washed away.

Next, the operation of the gargle device having the above configuration will be described.

First, when the water supply valve 2 is opened by depressing the pedal 3, tap water is sent to the mixer 6 through the pipes 4 and 5. Then, the valve body 12 is pushed down by the water pressure flowing through the pipe 4, the check valve A is opened, the discharge valve B is closed, and the water is sent to the suction mixing section C. When tap water is supplied to the suction mixing section C, the flow velocity increases as it passes through the small diameter nozzle hole of the jet nozzle 20, and a negative pressure is generated in the vicinity of the suction nozzle 21 due to the ejector effect. As a result, the chemical liquid is sucked from the chemical liquid opening / closing valve 30 via the chemical liquid supply hole 24 and the connecting pipe 25. On the other hand, a part of the water pressure flows into the upper chamber 32 of the chemical liquid on-off valve 30 through the water communication hole 22 and the connecting pipe 23, and the water pressure causes the diaphragm 31 to bend downward. Since the valve element 34 is pressed downward in conjunction with this, the gasket 36 opens the valve opening 37,
The drug solution in the drug solution tank 40 is sucked into the suction mixing section C through the tube 39 and the drug solution on-off valve 30. Then, the water and the chemical solution are properly mixed in the suction mixing section C, the mixed solution is jetted upward from the nozzle 42 through the pipe 41, and the mouth can be gargled by containing this.

As described above, the chemical liquid opening / closing valve 30 opens not only by using the negative pressure generated in the suction mixing section C but also by using the water pressure flowing through the suction mixing section C. Therefore, even if the negative pressure in the suction mixing section C is low, the chemical solution can be quickly supplied. It can be supplied to the suction mixing section C. Since the water communication hole 22 opens immediately before the ejection nozzle 20, the chemical solution opening / closing valve 30 opens almost at the same time when the negative pressure is generated in the suction mixing section C, so that water is not wasted and the chemical solution is faster than necessary. It will not be supplied.

On the other hand, when the water supply valve 2 is closed, the check valve A is closed and the discharge valve B is opened, and the water and the mixed liquid in the suction mixing section C are discharged from the discharge port.
It passes through 17 and is discharged onto the top plate 7. Therefore, the liquid medicine and the mixed liquid do not remain in the suction mixing unit C. Further, since the chemical liquid opening / closing valve 30 is closed at the same time as the water supply valve 2 is closed, water or the mixed liquid does not flow back to the chemical liquid tank 40.

3 and 4 show another embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and their description is omitted. In this embodiment, the mixer 6 is integrally provided with a vacuum breaker mechanism for canceling the negative pressure of the water pipe in case of negative pressure.

In the figure, the water introduced into the mixer 6 through the gargle water introduction pipe 8 flows upward through the introduction hole 10 and is supplied to the lower chamber 52 of the negative pressure releasing diaphragm 51 through the communication hole 50. . The valve body 53 attached to the central portion of the diaphragm 51 can open and close the opening of the communication hole 50, and is biased by the spring 54 in the valve closing direction. A vent hole 53a is formed at the center of the valve body 53 so as to penetrate vertically. Also, the lower chamber 5
1 communicates with the inside of the valve seat member 11 through the diagonal hole 55,
At the lower part of the valve seat member 11, there is provided a valve body 12 which also serves as a check valve A and a discharge valve B as in the first embodiment (see FIGS. 1 and 2). The periphery of the diaphragm 51 is fixed by a cap 56 screwed to the top of the mixer 6, and an upper chamber formed between the cap 56 and the diaphragm 51.
57 communicates with the outside air through an intake hole 58. Cap 56
A gasket 59 is attached to the lower surface of the top of the valve so that when the diaphragm 51 bends upward, the upper end of the valve body 53
It closely contacts 59 and closes the space between the intake hole 58 and the lower chamber 52.

In the gargle device having the above-described configuration, when the water supply valve is opened and gargle water is supplied into the mixer 6, the water pressure causes the diaphragm 51 to bend upward, and the upper end of the valve body 53 comes into close contact with the gasket 59. As a result, the lower chamber 52 is shut off from the outside air, and water is supplied to the inside of the valve seat member 11 through the communication hole 50, the lower chamber 51, and the oblique hole 55, and thereafter, as in the first embodiment. Water and chemicals can be mixed by suction.

If a negative pressure is generated in the water pipe, the valve body 53 is seated in the opening of the communication hole 50 by the spring force of the spring 54, so that the outside air is exposed to the intake hole 58, the upper chamber 57, and the valve body. It is sent to the water pipe through the ventilation hole 53a of 53. Therefore, the negative pressure in the water pipe is instantly eliminated, and the possibility that the chemical liquid or the mixed liquid flows back to the water pipe is completely eliminated.

[Effect of device]

As apparent from the above description, according to the first invention, since the check valve and the discharge valve that move reciprocally are provided in the water passage,
Even if the water pipe becomes negative pressure, the check valve can prevent backflow of the chemical liquid or the mixed liquid into the water pipe, and the discharge valve can prevent the mixed liquid from staying in the suction mixing section, which is hygienic. Is.

Further, according to the second invention, since the chemical liquid opening / closing valve that is opened by utilizing the water pressure in the water passage is provided, it is easy to obtain an appropriate mixing ratio even in the initial stage of jetting of the mouthwash or when the amount of water is small. There is an effect that the backflow of can be surely prevented.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a first embodiment of an gargle device according to the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG.
FIG. 4 is a vertical sectional view of the embodiment, and FIG. 4 is a sectional view taken along line IV-IV of FIG. 2 ... Water supply valve, 6 ... Mixer, 12 ... Valve body, 13, 14 ... Gasket, 17 ... Discharge port, 30 ... Chemical liquid opening / closing valve, 31 ... Diaphragm, 32 ... Upper chamber, 33 ... Lower chamber, 34 ... Valve body , 35 ... Spring, 42 ... Nozzle, A ... Check valve, B ... Discharge valve, C ... Suction mixing section.

Claims (2)

[Scope of utility model registration request] 1. Tap water is made to flow into a suction mixing section by opening a water supply valve, and a chemical solution is sucked in the suction mixing section by an ejector effect to be properly mixed with water, and a mixed mouthwash is jetted from a nozzle. In the gargle device configured to perform the above, a check valve that opens when the water pressure flowing through the water passage reaches a certain value or more is provided in the water passage that connects the water supply valve and the suction mixing unit, and connects the suction mixing unit and the discharge port. A gargle device comprising a discharge valve that opens and closes reciprocally with the check valve in the water passage. 2. Tap water is made to flow into a suction mixing section by opening a water supply valve, and a chemical solution is sucked in the suction mixing section by an ejector effect to be properly mixed with water, and a mixed mouthwash is jetted from a nozzle. In the gargle device configured to operate, a chemical solution opening / closing valve having a diaphragm is provided in the chemical solution passage that connects the chemical solution tank storing the chemical solution and the suction mixing section, and one chamber of the diaphragm connects the water supply valve and the suction mixing section. A valve body that is connected to the water passage and opens and closes the chemical liquid passage is provided in the opposite chamber, and the valve body is spring-biased in the valve closing direction and is linked to the diaphragm. An gargle device characterized in that the valve body is operated in the valve opening direction in conjunction with the deformation.