JPH03119228A - Opening and closing structure of flap valve in simplified flush toilet - Google Patents

Abstract

PURPOSE:To use a flush toilet without troubles even on blackout or out of order, by opening and closing a flap valve by operation of a manual emergency exhaust valve in addition to an external pressure by use of an air-cylinder. CONSTITUTION:A flap valve 6 is arranged to open and close a discharge outlet 5 provided at the bottom of a toilet bowl 3 to automatically actuate it with the compressed air of an air-cylinder 16. This flap valve 6 is manually actuated as well due to an emergency exhaust valve. When blackout or some troubles happen, the air within the air-cylinder 16 is discharged from the opened exhaust emergency valve and the flap valve 6 is opened by the actuation of the cylinder by dint of a spring 12 for the flap valve. In this condition, excrements are discharged by feeding water to the bowl. In this way, even on blackout, the flap can be manually operated without troubles and hence, the flush toilet can be used.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an opening/closing mechanism for a flap valve at the outlet of a so-called simple flush toilet, which is a flush toilet that cleans and discharges waste from the toilet bowl with a small amount of water. It is.

[Conventional technology]

Conventionally, electrically operated flap valve opening/closing mechanisms for simple flush toilets have been considered.

For example, if a flap valve is pressed against the bottom hole of the bowl by a flap valve spring and closed to prevent odor and to collect water inside the bowl, and the flap valve is automatically opened and closed by an air cylinder, in the event of a power outage or failure, the air cylinder If the valve stops working, the flap valve will not open and the toilet will become unusable.

[Problem to be solved by the invention]

In the above conventional example, although it is convenient because it is electric, it has a serious drawback that the toilet cannot be used during a power outage.
It can be said that the actual product was extremely unsatisfactory.

The present invention has been made in view of the above points, and is a flap valve opening/closing mechanism for a simple flush toilet that makes it possible to easily open and close the flap valve even during a power outage while taking advantage of the convenience of electric power. The purpose is to provide

[Means to solve the problem]

In order to achieve the above object, the flap valve opening/closing mechanism in the simple flush toilet of the present invention discharges pressurized flush water into the toilet bowl to clean the toilet bowl with a small amount of flush water. A simple flush toilet characterized in that a flap valve for opening and closing the discharge port provided at the bottom is automatically actuated by pressurized air, and an emergency exhaust valve is provided for manually opening and closing the flap valve. flap valve opening/closing mechanism.

3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an opening/closing mechanism for a flap valve at the outlet of a so-called simple flush toilet, a flush toilet that cleans and discharges waste from the toilet bowl with a small amount of water. It is.

[Conventional technology]

Conventionally, electrically operated flap valve opening/closing mechanisms for simple flush toilets have been considered.

For example, in order to prevent odor and to collect water in the bowl, if a flap valve is pressed against the bottom hole of the bowl by a flap valve spring and closed and is automatically opened and closed by an air cylinder, the air cylinder will open and close in the event of a power outage or failure. If it stops working, the flap valve will not open and the toilet will become unusable.

[Problem to be solved by the invention]

In the above conventional example, although it is convenient because it is electric, it has a serious drawback that the toilet cannot be used during a power outage.
It can be said that the actual product was extremely unsatisfactory.

The present invention has been made in view of the above points, and is a flap valve opening/closing mechanism for a simple flush toilet that makes it possible to easily open and close the flap valve even during a power outage while taking advantage of the convenience of electric power. The purpose is to provide

[Means to solve the problem]

In order to achieve the above object, the flap valve opening/closing mechanism in the simple flush toilet of the present invention discharges pressurized flush water into the toilet bowl and cleans the toilet bowl with a small amount of flush water. A flap valve for opening and closing the exhaust port provided at the bottom is automatically operated by pressurized air, and an emergency exhaust valve is provided for manually opening and closing the flap valve. (Embodiment) As shown in FIG. 1, the toilet bowl A has a toilet bowl 3, and a toilet lid 19 is provided on the top surface of the toilet bowl 3 to be able to be opened and closed via a toilet seat 18 that can freely rotate up and down. A discharge port 5 is provided at the bottom of the toilet bowl 3, and a discharge port 5 is provided below the discharge port 5.
The discharge tube 20 is connected so as to communicate with the discharge tube 20. Discharge pipe 2
A flap valve 6 for opening and closing the discharge port 5 is disposed inside the valve 0, and a pivot shaft 7 integrally provided at the end of the flap valve 6 is rotatably mounted. The arm 12 is extended in a direction perpendicular to the direction 7. An air cylinder 16 is arranged near the discharge port 5.

The pressurized and held air in the pressurized tank 36 is introduced into the air cylinder 16 through the air cylinder check valve 4 and the switching valve 39, which pushes the air cylinder 16 and opens and closes the flap valve 6. The valve 6 is constantly pushed by an air cylinder 16, and the flap valve 6 is closed with a predetermined force.

When draining water, the air cylinder 1 is
The pressurized air in 6 is exhausted from the exhaust port and the flap valve 6 is opened by the force of the flap valve spring 22.A flap valve spring 22 made of a tension spring is installed, and the air is exhausted by the flap valve 6. The flap valve 6 is biased in the direction of closing the outlet 5. The air cylinder 16 is operated by a remote control operation switch section 17 via a remote control line 23, so that the flap valve 6 can be opened and closed by remote control operation. A water tank 1 is arranged at the rear upper part of the toilet bowl A, and the water tank 1 has a hand washing part 24 and a pole tap 25. water tank 1
An overflow pipe 26 is introduced into the water tank 1 from the bottom of the tank 1, and the wash water 2 overflowing from the water tank 1 is discharged. A diaphragm pump 10 is arranged at the bottom of the toilet A, and a water supply pipe 28 connects the water chamber 27 of the diaphragm pump 10 and the inside of the water tank 1.
It is communicated at. A siphon-shaped suction part 29 is located inside the water tank 1 of the flush water supply pipe 28. A discharge nozzle 4 is provided at the top of the toilet bowl 3, and the water chamber 27 of the diaphragm pump 10 and the discharge nozzle 4 are provided at the top of the toilet bowl 3. and are connected by a wash water discharge pipe 30. The diaphragm pump 10 has an interior divided into two chambers by a diaphragm 11, and a water chamber 27.
and an air chamber 31. A center plate 32 is attached to the center of the diaphragm 11, and the diaphragm 11 is biased by a diaphragm spring 33 so that the air chamber 31 of the diaphragm 11 is bent. A check valve 34 is provided at the connection portion of the diaphragm pump 10 with the wash water supply pipe 2 and the wash water discharge pipe 30. At the bottom of the toilet bowl A, an air pump 35 for pressurizing the tank and a pressurizing tank 36 for storing pressurized air are arranged adjacent to the diaphragm pump 10.

Air is pressurized and held in the pressurized tank 36 by the air pump 35 through the check valve air pump 37. The air pump check valve 37 prevents the air in the pressurized tank 36 from flowing back into the pump. In the pressurized tank 36,
A pressure switch 38 is provided, and when it detects that the air in the pressurized tank 36 falls below a certain pressure, it operates the tank pressurizing air pump 35. That is, the air pump for pressurizing the tank is activated when the flap is activated, when the air in the pressurized tank is blown out, and when the pressure in the pressurized tank is reduced due to long-term retention of air in the pressurized tank.

When a power outage or failure occurs, the emergency exhaust valve 42 is set to 0P.
By setting it to EN, the air in the air cylinder 16 is exhausted, the cylinder is operated by the force of the flap valve spring 12, and the flap valve 6 is opened (this state can be maintained; Next, we will explain the operation of flushing the toilet bowl 3 after using the toilet.In a diaphragm pump lO, normally the air chamber 3
Since air is not supplied to 1, the air chamber 31 of the diaphragm 11 is bent by the diaphragm spring 33, and the water chamber 27 is filled with the cleaning water 2 by sucking water from the cleaning water supply pipe 28. There is. Now, when the cleaning button 17a is operated on the operation switch section 17, the pressurized tank 3 is
6 and the diaphragm pump IO communicate, and the pressurized tank 3
6 to the air chamber 31 of the diaphragm pump 10 at a constant pressure, the diaphragm 11 of the diaphragm pump 10 is pushed by the air, the cleaning water 2 in the water chamber 27 of the diaphragm pump 10 is sent out, and the cleaning water discharge pipe 30
Washing water 2 is discharged from the discharge nozzle 4 through the steps, and the inside of the toilet bowl 3 is cleaned.

At this time, the air cylinder 16 is driven by operating the cleaning button 17a of the operation switch section 17, and the valve link 1
4 is pulled against the flap valve spring 22, and the arm 12
rotates, the pivot shaft 7 rotates, and the flap valve 6 is opened.
Filth and wash water 2 are discharged from the discharge port 2. When cleaning is finished and the cleaning water is discharged, the switching valve is switched and the air chamber 31 of the diaphragm pump 10 communicates with the exhaust pipe, the air in the air chamber 31 is removed, and the diaphragm spring 33
The diaphragm 11 returns and the diaphragm pump 1
Water is sucked into the water chamber 27 at No. 0 in preparation for the next cleaning.

〔Effect of the invention〕

As described above, the present invention has an advantage in that the flap can be manually opened and closed in the event of a power outage, etc. in an electric flush toilet.

[Brief explanation of drawings]

1 and 2 show an embodiment, with FIG. 1 being a sectional view and FIG. 2 being a front view. 3... Toilet bowl, 6... Flap valve, 16...
Air cylinder, 36... Pressurized tank, 42... Emergency exhaust valve.

Claims (1)

[Claims] 1) In a simple flush toilet that discharges pressurized flush water into the bowl and cleans the bowl with a small amount of flush water,
A flap valve for opening and closing the discharge port provided at the bottom of the toilet bowl is automatically actuated by pressurized air, and an emergency exhaust valve is provided for manually opening and closing the flap valve. Flap valve opening/closing mechanism for simple flush toilets.