JPH04111821A - Simplified flush toilet with deodorizing device - Google Patents

Abstract

PURPOSE:To prevent odor from diffusing in a toilet room by installing a check valve and a deodorizing fan in a communicating exhaust passage which communicates a toilet bowl with a drain system bypassing a flapper. CONSTITUTION:A check valve 40 and a deodorizing fan 38 are installed in a communicating exhaust passage which communicates a toilet bowl 12 with a drain pipe connected below via a cartridge 44 by bypassing a flapper 56. The deodorizing fan is operated to discharge the air containing odor in the toilet bowl to a drain pipe via a rim water passage 16, an inlet passage 18, openings 34, 36, the deodorizing fan 38, the check valve 40, a duct 42, a branch pipe 46, and the cartridge 44. This constitution prevents odor from diffusing in the toilet room.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a simple flush toilet equipped with a deodorizing device.

[Prior Art] A simple flush toilet includes a toilet bowl with a drain opening opening downward at the lower end and a rim water passage around the upper part, and a device for supplying flush water to the rim water passage. and a flapper that closes the drain port from below. A small amount of water is stored in this toilet bowl, and a water seal is created between the drain port and the flapper.

When the flapper is opened, the waste in the toilet bowl falls into the drain pipe due to gravity. A very small amount of water is then supplied into the toilet bowl to clean the bowl.

[Problems to be Solved by the Invention] The above-mentioned drain pipe is connected to a septic tank, and an exhaust pipe is connected to this septic tank. Therefore, even in conventional simple flush toilets, the water inside the drain pipe on the downstream side of the flapper is Exhaust deodorization was possible.

However, in conventional simple flush toilets, the odor inside the toilet bowl is not forcibly discharged, causing the odor to diffuse into the toilet room.

[Means for Solving the Problems] A simple flush toilet equipped with the deodorizing device of the present invention communicates the inside of the toilet bowl with a drainage system path by bypassing a flapper, and a check valve and a deodorizing fan are installed in this communication exhaust path. It has been established that

[Function] According to the simple flush toilet provided with the deodorizing device of the present invention, the odor in the toilet bowl can be forcibly discharged to the drain pipe.

[Example] Examples will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a simple flush toilet with a deodorizing device according to an embodiment of the present invention. This simple flush toilet 10 is provided with a toilet bowl 12 at the front thereof, and a drain port 14 which opens downward is provided at the lower end of the toilet bowl 12. Toilet bowl 12
A rim water passage 16 is provided around the upper part of the rim.
The rim water passage 16 is connected to the low tank 2o via the water supply water passage 18.
Washing water can be supplied from

A float valve device 24 is provided at the wash water outlet 22 of the low tank 20. 26 indicates a float valve. A support 28 is provided upright on the float valve device 24, and a stopper 30 for preventing the float valve 26 from floating up is fixed to the support 28.

A rising portion 32 is provided on the rear side of the toilet bowl of the water supply channel 18, and an opening 34 is provided on the rear side of this rising portion 32. This rising portion 32 allows water that has passed through the float valve device 24 and flowed into the water supply channel 18 to pass through the opening 34.
This is to prevent it from entering.

Another opening 36 is provided below the opening 34, and a deodorizing fan 38 is connected to the opening 36. A check valve 40 is provided at the exhaust port of the deodorizing fan 38, and the check valve 4
0 is connected to a branch pipe 46 of a cartridge 44 via a duct 42.

The cartridge 44 includes a cylindrical portion 48 extending vertically to surround the drain port 14, a branch pipe 46 extending laterally from the cylindrical portion 48, and a lower end of the cylindrical portion 48. , a flapper 56 that is pivotally supported to the cylindrical portion 48 via a shaft 52 and a lever 54, an arm 58 that is integral with the shaft 52, and a balancer 60 that is fixed to the arm 58. It is equipped with Note that the lever 54 is also integrated with the shaft 52, and the flapper 5 is moved by the gravity of the balancer 60.
6 is brought into contact with the drain port 14 from below, and the drain port 1
4 can be closed. Note that the arm 58 includes:
An interlocking means (not shown) is connected to rotate the arm 58 upward, and by operating this interlocking means, the flapper 56 is forcibly rotated downward and the drain port 1 is rotated.
4 can be opened. Reference numeral 62 indicates a packing.

In the simple flush toilet configured in this way, the toilet bowl 12 is opened by opening the flapper 56 by the interlocking means.
The filth inside falls through the cartridge 44 to a drain pipe connected below, and is discharged. In addition, by pulling up the float valve 26, a small amount of the wash water in the low tank 20 is supplied from the rim passageway 16 into the toilet bowl 12,
The needle surface of the toilet bowl 12 is cleaned.

When the deodorizing fan 38 is operated, the odor-containing air in the toilet bowl 12 is removed from the rim water passage 16, the water supply passage 18, the opening 34, 36, the deodorizing fan 38, the check valve 40, and the duct 4.
2. It is discharged to a drain pipe (not shown) via the branch pipe 46 and the cartridge 44. Therefore, the odor inside the toilet bowl 12 can be forcibly discharged, and the odor can be prevented from spreading into the toilet room.

Note that when the deodorizing fan 38 is stopped, the check valve 40 closes to block the flow of air in the opposite direction from the drain pipe toward the toilet bowl 12, thereby preventing odor from flowing backward from the drain pipe.

In this embodiment, the deodorizing fan 38 and duct 42 are arranged at the rear of the toilet bowl below the low tank 20, so that the deodorizing fan 38 and duct 42 are not noticeable and look good. Further, since the deodorizing fan 38 is disposed outside, installation, inspection, repair, etc. of the deodorizing fan 38 are easy.

FIG. 2 is a longitudinal sectional view of a simple flush toilet with a deodorizing device according to a different embodiment of the present invention.

In this embodiment, a duct 24a is provided upright in the float valve device 24, and the duct 24a is raised above the upper end of the overflow pipe 64 of the low tank 20. In this embodiment, the deodorizing fan 38 is the low tank 2
The inlet of the deodorizing fan 38 is connected to the duct 24a through a short duct 66. A check valve 40 is provided at the exhaust port of the deodorizing fan 38, and the exhaust side of the check valve 40 is connected to a branch pipe 46 of a cartridge 44 via a duct 42.

The rest of the structure of the simple flush toilet in FIG. 2 is the same as that in FIG. 1, and the same parts are given the same reference numerals and the explanation thereof will be omitted.

In this embodiment as well, by operating the deodorizing fan 38, air containing odor in the toilet bowl 12 is removed from the rim water passageway.
6, water supply channel 18, duct 24a, 66, deodorizing fan 38
, a check valve 40, a duct 42, a branch pipe 46 and a cartridge 44 for forced discharge to a drain pipe. In addition,
In this embodiment, the deodorizing fan 38 is located in the low tank 20.
Since the toilet bowl is installed inside the toilet bowl, there are few exposed structures around the toilet bowl, making it easy to clean and looks good.

In the above embodiment, the duct 42 is connected to the cartridge 44, and the odor in the toilet bowl 12 is discharged from the cartridge 44 to the drain pipe, but the duct 42 may be directly connected to the drain pipe.

[Effects of the Invention] As described above, in the simple flush toilet of the present invention, the odor inside the toilet bowl can be forcibly discharged into the drainage system, so the odor can be diffused from the toilet bowl into the toilet room. This can be reliably prevented.

[Brief explanation of drawings]

1 and 2 are longitudinal sectional views of a simple flush toilet according to an embodiment of the present invention. 10...Simple flush toilet, 12...Toilet bowl, 14.
・・Drainage port, 16・・Rim water passage, 18・
... Water supply channel, 20 ... Low tank, 24.
...Float valve device, 26...Float valve, 38...
- Deodorizing fan, 40... Check valve, 44... Cartridge, 56... Flapper. agent

Claims (1)

[Scope of Claims] A toilet bowl provided with a drain opening opening downward at the lower end and having a rim water passage around the upper part, a device for supplying wash water to the rim water passage, and the drainage water. a flapper that closes the mouth from below; an exhaust passage that allows ventilation between the inside of the toilet bowl and a drainage system path downstream of the drain port; and a drainage system from the toilet bowl provided in the exhaust passage. A simple flush toilet equipped with a deodorizing device comprising: a check valve that allows air flow only in the direction toward the street; and a deodorizing fan provided in the exhaust passage.