JPH04108928A - Deodorizing device for flush toilet - Google Patents

Abstract

PURPOSE:To prevent odor from being sent out of sewage water by impregnating a permeable filter with water, attracting odor into an intake device for filtration, and then cleaning the filter in wash water. CONSTITUTION:A water passage 2 of a toilet stool body 1 is provided with a filter 3 and connected via a hollow air intake pipe 5 to a water intake device 4, in which a fan 6 is built. Odor due to exhaust air 10 from many water flow holes 8 made around a tool tank 7 and a seat 9 is adsorbed to water impregnated in the filter 3 through an exhaust passage 11 and the water passage 2. Odor is purified while passing through a water film and discharged through a drain port 12, and odor adsorbed to the filter 3 is cleaned as wash water is outflowed from a drain port 15 by opening a float valve 14 of a reservoir 13. It is thus possible to obtain long-time maintenance-free effect.

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a deodorizing device for flush toilets.

``Conventional technology'' Conventionally, methods were used to exhaust odors from the source to the sewer with an exhaust fan, or to remove the inhaled odors with deodorizers such as activated carbon, but methods such as forced exhaust to the sewer pipes The smell comes out from the kitchen sink and drain, which is not good for hygiene. Further, even if a deodorizing agent was used, it had to be replaced every three months or so, and it was not effective as it required the cost and effort of refilling the deodorizing agent.

``Problems to be Solved by the Invention'' The present invention provides a low-cost device that can prevent the occurrence of secondary pollution caused by directly discharging the above-mentioned odors into sewer pipes, and can maintain its deodorizing ability permanently. It is.

"Means to solve problems" The present invention is a filter with good air permeability that soaks water.

"Function" The deodorizing device of the present invention sucks the odor vaporized in the toilet tank with the suction device, and deodorizes the odor through a filter impregnated with water. Absorbs odors into water without using deodorizers. and,
The filter is purified by washing water, and the odor adhering to the filter is discharged into the sewer along with the water.

"Embodiment" Hereinafter, an embodiment of the present invention will be explained based on the drawings. Fig. 1 shows a first embodiment of the present invention, in which a filter 3 is provided in the water passage 2 of the toilet main body 1, and an air intake device 4 and a hollow air intake are provided. They are connected by pipe 5. The suction device 4 is equipped with a fan 6 for sucking out odors generated during toilet use, and the odors sucked in through the water holes 8 provided around the toilet tank 7 and the exhaust holes 10 of the toilet seat 9 are
It passes through an exhaust passage 11 and a water passage 2, adsorbs odor to water soaked in a filter 3, and further passes through a water film to be purified and discharged from an exhaust port 12. On the other hand, when the float valve 14 of the water storage tank 13 is opened, the cleaning water flows out from the drain port 15 to clean the odor adhering to the filter 3. Reference numeral 16 denotes a connecting pipe that connects the water passage 2 and the exhaust passage 11 of the toilet seat 9, and the internal passage is provided with a check valve to prevent flushing water from flowing in.

FIG. 2 shows a second embodiment of the present invention, in which an air intake device 17 is installed on a lid 20 with an air intake port 18 facing the inside of a water tank 19.
The intake port 18 and the overflow pipe 21 are connected by the intake pipe 22, and the odor absorbed by the operation of the fan 23 passes through the water passage 25 of the overflow pipe 21 from the drain port 24, and is inscribed in the intake pipe 22. Filter with filter 26. In addition, since the opening 27 of the intake pipe 22, which has a larger diameter than the outer diameter of the overflow pipe 21, is connected to the overflow port 28 so as to be submerged in water, the odor is attracted to the filter 26 without leaking to the outside. . After purification, the odor is discharged from the exhaust port 29 in an odorless state. Further, a cleaning hole 30 is provided near the top of the filter 26, and a cleaning hose 31 is led and connected to the water supply, and clean water is ejected from this cleaning hole 30 at the same time as cleaning the toilet tank. The contaminated filter 26 can be cleaned and used repeatedly.

The filter in the present invention is made of fibers or particles with good air permeability, such as nonwoven fabrics such as polypropylene, rayon, nylon, and polyester, or porous plastics with minute pores, ceramics, inorganic paper, etc., and can be used for a long period of time. It goes without saying that it is a material that can withstand water and has excellent water permeability.

It should be noted that the use of filter intake devices made of various materials in addition to the above examples are all included in the present invention.

``Effects'' According to the present invention, since the filter is installed in the path of the washing water, it is possible to remove odors from the source, and in addition to purifying the filter with the washing water, vaporized odors are converted into liquid. Since it is flushed into the sewer, there is no odor emitted from the sewer, making it sanitary. In addition, since no deodorizing agent is used, there is no consumable cost, and once installed, it is maintenance-free for a long period of time.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the operation of the first embodiment of the present invention, and FIG. 2 is an explanatory diagram of the operation of the second embodiment of the invention. 2.25... Water passage, 3.2G... Filter, 4
・17...Intake device, 5.22...Intake pipe, 6.2
3...Fan, 8...Water hole.

Claims (1)

[Claims] A deodorizing device for a flush toilet, characterized in that a filter with good air permeability soaks water, filters odor sucked in by an air intake device, and then cleans the filter with washing water.