JPH0234300Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a low tank unit for toilet bowl cleaning, which is equipped with a low tank for toilet bowl cleaning and various piping on a counter or under the counter, and whose front surface is covered with a decorative board.

Conventionally, low tank units for flushing toilet bowls have generally been provided with the opening edge close to the underside of the counter.

Therefore, when water is supplied to the low tank, the air containing moisture in the low tank is pushed into the unit through the gap between the counter, the bottom of the washbasin, and the opening edge of the low tank, causing damage to piping, appliances, and other wooden parts inside the unit. Condensation may occur, leading to corrosion in the worst case, or dripping onto the floor, staining it.

One possible solution to this problem is to hold the low tank in a sealed manner under the counter, but since air circulation is blocked, check to eliminate the negative pressure phenomenon inside the low tank that occurs when cleaning water is drained inside the low tank. It is necessary to provide an air circulation hole in the lid or to form an air circulation gap between the inspection lid and the lid fitting recess, which not only makes the inspection lid unsightly but also complicates the inspection lid and counter. This leads to a rise in manufacturing costs.

The present invention was developed in view of the above-mentioned conventional circumstances, and its purpose is to prevent the moisture-laden air in the cleaning low tank from overflowing into the unit, while also allowing the air to flow smoothly into the low tank. The purpose of the present invention is to provide a low tank unit for flushing toilet bowls that does not require processing the inspection lid or counter into a special structure.

The basic structure to achieve this purpose is to place a low tank in sealing contact with the underside of the counter, and install a check valve in the low tank to take in outside air when draining the low tank, allowing the air to rise as water is supplied into the low tank. The outflow is to the outside of the unit through the overflow pipe, which has no resistance.

Embodiments of the present invention will be described below with reference to the drawings.

Low tank unit body A and counter B,
It covers the area between the low tank C which is located below the counter B and has an overflow pipe 1 inside, the cleaning pipe 3 to the toilet bowl 2, the water supply branch pipe 4 to the low tank C, and the space between the bottom surface of the counter B and the floor surface 5. It consists of a decorative board 6 that hides the internal low tank C, toilet bowl cleaning pipe 3, and water supply branch pipe 4, and the low tank C for cleaning is brought into sealing contact with the lower surface of this counter B.

Place the low tank C on the mounting bracket 8 fixed to the back wall 7 of the room, and either close the opening edge c to the bottom surface of the counter B, or attach the opening edge c to the bottom surface of the counter B using screws or adhesive. A check valve D is installed on the wall c1 above the fixed volume storage area in this low tank C.

The counter B is made of a desired material such as marble or synthetic resin and is rectangular in plan, and as shown in the figure, it utilizes a bracket 10 fixed to the side wall 9 of the room and a storage cabinet 11 arranged on the side of the low tank C. The receiver 10 is placed on both sides and suspended, or is fixed facing both sides of the side wall 9 of the room.
Support it in a mounted manner.

The check valve D includes an air intake port d opened in the wall surface c1 of the low tank C, and a valve membrane d1 having elasticity and having a peripheral portion fixed to the inner surface of the wall surface c1 of the low tank C so as to block the air intake port d. , its valvular d
1 and an air suction port d2 opened at a position shifted from the air intake port d, and the valve membrane d1 is opened only when the water stored in the low tank C is supplied to the toilet bowl 2 and the inside becomes negative pressure. As shown in the figure, it is elastically deformed to form a suction passage d3 between the air intake port d and the air suction port d2, thereby sucking the outside air inside the unit body A into the low tank C. Note that the valve membrane d1 of this check valve D comes into close contact with the wall surface c1 of the low tank C when the internal pressure of the unit body A and the internal pressure of the low tank C are equal, and naturally the inside of the low tank C is in a pressurized state (inside the low tank C). (during water supply), the suction flow path d
It goes without saying that 3 is blocked. Furthermore, the check valve D is not limited to the above structure, and may have another structure.

Therefore, the low tank C accompanying the water supply to the toilet bowl 2
The air necessary to eliminate the negative pressure phenomenon inside the tank is forcibly drawn into the low tank C through the check valve D, and the internal air (humid air) associated with water supply to the low tank C is drawn into the low tank C. The water is discharged from the overflow pipe 1 inside the unit to the outside of the unit, that is, to the toilet bowl 2.

Although the drawing shows a case in which the low tank C is moved to one side of the room side wall 9 so that the storage cabinet 11 can be placed between it and the other side wall 9 of the room, the present invention is designed to accommodate the low tank C
Needless to say, the present invention is also applicable to a general case in which the room is placed in the center of the side wall 9 instead of being placed on one side.

Furthermore, in the case of a low tank unit in which a wash basin is suspended from a counter B, the opening edge c of the low tank C may be brought into close contact with the lower surface of the wash basin, and the low tank C may be provided with a check valve D for sucking outside air. good.

As described above, the present invention has the following advantages since the low tank is suspended in a sealed manner under the counter and a check valve is provided to take in outside air into the low tank.

The overflow of moisture-laden air inside the low tank is blocked by a check valve, preventing it from overflowing into the unit.
It is hygienic as it does not cause condensation on the piping and equipment in the unit or corrode the wooden parts, and of course prevents condensation from dripping onto the floor.

When eliminating the negative pressure phenomenon in the low tank, there is no need to form an air passage means in the counter or the inspection lid.

[Brief explanation of the drawing]

The drawings show an embodiment of the low tank unit for cleaning toilet bowls of the present invention, and FIG. 1 is a front view with a portion cut away.
Figure 2 is the same plan view with a part cut away, Figure 3 is the 3-
3 is a sectional view, FIG. 4 is a 4-4 sectional view, FIG. 5 is an enlarged sectional view of the check valve portion, and FIG. 6 is an enlarged sectional view showing the state of the check valve when air is sucked. In the figure, A...low tank unit body, B...
...Counter, C...Low tank, D...Check valve.

Claims (1)

[Scope of utility model registration request] A low tank unit for flushing toilet bowls, which has a low tank in sealing contact with the underside of the counter, and is equipped with a check valve that takes in outside air into the low tank.