KR970007596B1 - System and apparatus for a pressurized flush toilet - Google Patents

Abstract

None.

Description

Pressure flush toilet system and device

1 is a cross-sectional view of the use state of the present invention.

Figure 2 is a cross-sectional view of the drain valve is connected to the drain tank of the present invention closed.

3 is a cross-sectional view of the drain valve is connected to the drain tank of the present invention opened.

* Explanation of symbols for main parts of the drawings

1: drain tank 2: water supply valve

3: drain valve 4: stopper

5 valve plate 11 cylinder tube

12: check valve 14: narrow passage pipe

21: drain tower 23: passage

31: toilet bowl 32: injection nozzle

The present invention is directed to a system and apparatus for a new pressure flush toilet that utilizes existing pressure energy when water is supplied to reduce water consumption and improve toilet function.

The principle of operation of a flush toilet lies in two basic elements: drain and siphoning. The drain pipe consists of a dam and a trap that rises and falls to form the dam.

This configuration prevents the water in the pail from slowly overflowing to the upper end of the dam to collect water at the bottom of the pail after use of the toilet.

The deceased serves as a liquid deodorizing plate that isolates the toilet bowl from the downward filth line and receives falling dirt to prevent direct contact with the surface of the toilet bowl.

The lower part of the drainage channel extends below the bottom of the toilet bowl, and siphoning occurs at a certain level of water flow.

In conventional toilets, water is first drained into the canister, which is caused to flow from the canister onto the dirty dam. As the drainage continues, the overflow increases to the level of the formation of columnar streams at the lower part of the drainage.

Siphoning occurs under these conditions. Siphoning causes suction to remove dirt from the keg. In fact, all existing flush toilets rely on siphoning for dirt removal. Since the siphon action is only installed by a certain level of water flow, a large amount of water is necessary.

The toilet in the home delivers the required water flow rate by discharging a significant amount of water from the drain tank.

The drain tank of the gravity flush toilet sits on top of the tub and is exposed to air. Gravity flushes are now best known in the United States and around the world.

Recently, a pressure washing system has been invented that uses pressure energy when water is supplied for a domestic toilet to pressurize the washing operation. The system consists of a closed drain tank that collects pressurized water to produce an effective increase in water supply. After washing, the drain tank is automatically filled with water. As the pressure supplied pushes water into the drain tank, the air in the tank is pressurized until the pressure in the tank reaches a predetermined pressure.

The flow of feed is then stopped by the pressure regulator and the compressed air is retained in the tank until the next drain. Since the size of the tank and the amount of air in it are fixed constantly, the adjustment of the tank pressure is determined by the amount of water at the time of washing.

Pressure flush systems have many advantages over traditional gravity flushes. The flow rate of water initially drained in this system is significantly faster than gravity drainage. All the energy in a pressure flush is several times greater than gravity. After all, pressure flushing immediately produces the necessary siphoning and requires much less water for effective flushing.

However, there are some disadvantages to existing pressure flush systems. Conventional pressure washing employs the conventional concept of storing water in a tank after use until the next use.

This requires that the drain tank should almost always be at a regulated pressure. This requires a safety device because a significant amount of energy is always stored in compressed air. Therefore, a great deal of attention is required in the structural shape of the drainage tank which is expensive to manufacture. Moreover, the compressed water in the tank can flow back when the pressure of the water supplied changes, which can be dangerous. Reliable backflow prevention devices are required to prevent backflow from the tank under pressure. This, in turn, adds to the complexity of the system and increases manufacturing costs.

Another problem with conventional pressure systems is that once the toilet is flushed with water, there is a need to introduce a fixed amount of fresh air into the drain tank each time to fill the missing air. To control the inflow of air, the flow of water must be controlled by more sophisticated measuring nozzles. This further increases the complexity of the system, including the cost of installing and maintaining the system. In operation, the user must open the drain valve under pressure. Due to the large cross-sectional area and the hydraulic pressure of the drain valve, a large force must be applied to the drain valve. For the convenience of the user, it is necessary to lower the opening force of the valve to a level that can be controlled well.

The existing solution to solve this problem is to attach a pilot valve to operate the drain valve of the tank. This again makes the pressure drain system more complex and less reliable. As a result, pressure tank systems have not been popularized to date, despite their high practicality of high flow rates, high energy and low water.

The present invention aims to eliminate various inconveniences of a pressure tank system based on the complexity of safety devices and systems to solve the above problems.

Another object of the present invention is that the drain tank is empty between use and is pressurized only for that short time just before flushing.

Another object is to provide a new pressure flush system that operates with a unique drain cycle that has never been filled before the drain tank is filled just before drainage. By doing so, it is possible to remove the safety device and the back check device of the existing pressure washing system.

Another objective is to automatically fill the tank with fresh air after drainage to eliminate the need for air intake in existing systems.

The present invention describes an innovative method of flush toilets and a device therefor.

The present invention relates in particular to a pressure flush system for toilets.

To date, all existing toilet drain tanks, including gravity and pressure drains, are filled with water in between. The drain cycle of a conventional toilet usually works by opening the drain valve of the drain tank. The water stored in the tank is then drained to the toilet bowl. The drain valve is automatically closed after the tank is empty. The tank is then automatically filled with water up to a certain height and stored at that height until the next use.

The drain cycle according to the invention is completely different from all existing flush toilets. The present invention comprises a closed drain tank, a water supply valve connected to the supply of water, and a drain valve for discharging the discharged water to the toilet bowl.

The drain tank is empty between uses. The drain cycle starts with opening the water supply valve. The pressurized water is then forced into the tank and at the same time the water pressure of the supplied water closes the drain valve. When the drain valve closes, the air in the tank is trapped. The influent collects in the drainage tank and the increased amount of water pressurizes the trapped air in the tank and the pressure gradually increases. When the pressure in the tank reaches the predetermined pressure, the water supply valve closes and the drain valve opens automatically. The water is then discharged into the toilet by the pressure of compressed air, which in turn causes a siphon action to remove dirt from the toilet.

Therefore, when the user first initiates a drain cycle, drainage does not occur immediately. Instead, there is a short delay before the drain tank fills with water. Suddenly, flushing begins automatically with a powerful drain of water. This drain cycle is conceptually different from all existing toilets.

Referring to FIG. 1, the drain tank 1 is closed to store water and compressed air. The tank (1) is connected to the water flow through the water supply valve (2) and the conduit (9) and through the drain valve (3) the shape of the toilet bowl 31 is a conventional nozzle having a spray nozzle 32 at the bottom of the toilet bowl Similar to siphon injection.

In the embodiment of the present invention, the flow of water discharged from the drainage tank is divided into two stems. One stem flows along the passage 33 formed at the outer circumference and is injected into the injection hole 34 to wash the inside of the cylinder and flow into the cylinder. The other stem has a high flow rate while being drained to supply water to the spray nozzle 32. The deceased 35 is collected at the bottom of the toilet while being used, and the water serves as a deodorant and receives falling dirt. During use, the water supply valve 2 is closed, the drain tank 1 is empty and the drain valve 3 is open.

2 shows a detailed view of the flushing system according to the present invention. When the start button 6 is pressed, the stopper 4 is pushed out of the valve plate 5 so that the water supply valve is opened. In the open position the stopper 4 is no longer subjected to a stationary hydraulic pressure of the water to be supplied. The water to be supplied passes through the cylinder pipe 11 and the check valve 12 into the drain tank. At the same time, the water pressure of the water supplied is pressurized by the cylindrical pipe 11, and thus the drain valve 3 is closed by stopping the drain valve plug 15 on the drain valve plate 13. When the drain valve 3 is closed, the air in it is compressed. That is, the water under pressure from the water supply line flows into the drainage tank and collects in the tank, which gradually pressurizes the trapped air. Since there is a definite correlation between the pressure of the tank and the amount of water in the tank, the horizontal height of the water can be controlled by the pressure of the tank. In the present invention incorporating this, the flow of water is cut off at a pressure level of a predetermined tank by a pressure switch means attached to the water supply valve 2. When the pressure in the tank 1 reaches a predetermined pressure, the hydraulic pressure acting on the piston 8 overwhelms the force of the spring and eventually closes the water supply valve 2. When the valve 2 is closed, the pressure in the cylindrical tube 11 is no longer maintained by the incoming water flow, so that the cylindrical tube 11 leaks through the narrow passage tube 14 connected to the outer low pressure region. The pressure is lowered. As the pressure in the cylindrical tube 11 is weakened, as shown in FIG. 2, the stopper 15 rises and falls from the drain valve plate 13. This opens the drain valve 3 and drains water from the tank into the toilet bowl.

The drainage, accelerated by the pressure of the compressed air, acts as a siphon to remove dirt collected in the bin until it is almost empty. Then the siphoning stops and the barrel is empty for a while.

The flush toilet requires a design that can be automatically refilled after each flush. This is necessary for containment of the drainage line and for subsequent use.

The proposed solution according to the present invention is to slow down the flow rate of the drain at the last stage of drainage to collect the last part of the drained water into the toilet bowl after the siphon stop. The upper part of the drain valve 3 is to have a short vertical drain tower (21). The water in the drain tank gathered out of the upper end of the vertical drain tower is adjusted to be sufficient to refill the water accumulated in the toilet bowl. There are many small holes 23 near the bottom of the vertical drain tower. After the water in the tank 1 is discharged to the height of the upper end 22 of the vertical drainage tower, the remaining water in the tank is drained through many small holes 23. Slow drainage no longer supports siphoning and eventually stops siphoning. So, when the drain is slow, the water collects in the bucket and the toilet bowl is filled with water again.

Claims (8)

A system for operating a flush toilet includes a drain tank for storing water and confining air therein, a feed valve connected to a pressure supply source to regulate the flow of water to the drain tank, and drainage from the drain tank to the toilet bowl. The drainage tank of the system starting with a water-free and air-filled drainage tank includes (1) a flush cycle by opening a water supply valve to provide a flow of water to the drainage tank. (2) the drain valve is automatically closed to trap air in the drain tank and collect water in the drain tank, and (3) continuously until a predetermined amount of water is collected in the drain tank. Water in the tank, (4) the water valve closes automatically, and (5) water in the tank drains to the toilet bowl A system and apparatus for a pressure flush toilet in which the drain valve is automatically opened to allow water drained from the tank to remove dirt from the toilet bowl. The system of claim 1, wherein the system for operating a flush toilet comprises: slowing the flow rate of a predetermined amount of drainage at the end of the drainage from the tank; In other words, the predetermined amount of drainage is configured to refill the drain pipe of the toilet bowl. The system for operating a flush toilet according to claim 1, wherein the system for operating the flush toilet has a predetermined amount of water controlled by the pressure in the tank during step (3) and the predetermined pressure limit value by the pressure in the tank in step (4). And a water flush valve configured to be movable by the pressure switch set to close the water supply valve. The system of claim 1, wherein the system for operating the flush toilet is configured such that during the step (5), the drain valve is automatically opened by the reaction of water pressure to close the feed valve. And a device. The flush toilet comprises a toilet bowl, an air-compressed drain tank, a water supply valve for the drain tank connected to a pressure source, a driver for manually operating the water supply valve, and a closing of the water supply valve at a predetermined pressure of the tank. A pressure switch to connect the drainage tank to the toilet bowl, and the drainage valve is operated by the flow of water through the water supply valve, and when the water supply flows, the drain valve is closed and the water supply flow stops. Is opened; When the water supply valve is opened by the actuator, the drain valve closes automatically to trap the air in the drain tank, and the water supply compresses the air in the drain tank by the water pressure of the supply water until the predetermined pressure is reached, and then the pressure switch closes the water supply valve. And the drain valve is configured to discharge the water in the drain tank into the tub to remove the dirt in the toilet bowl when the drain valve is opened as the water supply flow is interrupted. According to claim 5, wherein in the flush toilet, the drain valve is formed in a cylindrical shape, and includes a piston installed inside the cylindrical tube, and a valve cap mechanically connected to the piston, the flow of water supply to the cylinder by applying pressure to the cylinder The valve stops the valve by closing the drain valve, and the cylinder includes a pressure reducing device for reducing the internal pressure of the cylinder when the flow of water stops, and when the internal pressure decreases, the drain valve opens. Systems and apparatus of pressure flush toilets. 6. The pressure flush toilet system and apparatus as set forth in claim 5, wherein said pressure reducing device constitutes a thin flow path for connecting to a downward portion of the drain valve in the cylinder. The pressure switch device of claim 5, wherein the pressure switch device includes a piston, the first side of the piston sensing the atmospheric pressure, the second side sensing a pressure substantially close to the pressure of the drain tank, and the constant piston is the water supply valve. Movement to the first side causes the water supply valve to close and a spring with a predetermined pressure is installed and the piston moves the spring to close the water supply valve when the pressure on the second side exceeds the predetermined pressure. System and apparatus for a pressure flush toilet.