JP2001049718A - Bactericidal and deodorizing device in toilet stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress propagation/proliferation of bacteria by utilizing bactericidal activity of ozone gas and to prevent generation of a bad odor by arranging a linear ozone generating device in a toilet seat part in a state that the generating device is situated in internal space of a sitting type toilet stool. SOLUTION: A linear ozone generating device 5 is adhered and arranged on a rear face of a toilet seat plate 2 of toilet stool 1 in a state that an upper surface opening of the toilet stool 1 is surrounded and the linear ozone generating device 5 is connected with an ac commercial power source via a control box 6. An ozone generating part of the linear ozone generating device 5 is formed by an electrode body in which a pair of flexible conductors are arranged in parallel at a gap of prescribed discharge space in a flexible insulating body and are made freely deformable. By impressing voltage on the flexible conductors from a connector, ozone is generated in a uniformly distributed state along the electrode body in discharge space between the flexible conductors. Generated ozone is lowered by gravity in space within the toilet stool 1, an ozone layer is formed on an upper part of excrement and indoor diffusion of evacuation smell is suppressed. Propagation/proliferation of bacteria can be suppressed by bactericidal activity of ozone gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disinfecting and deodorizing apparatus for a toilet seat, and more particularly, to a disinfecting apparatus which can be used for a portable toilet used by a medical institution, a welfare facility, or a home-care worker at home. It relates to a deodorizing device.

[0002]

2. Description of the Related Art Conventionally, in an installed stool-type toilet, as shown in, for example, Japanese Patent Application Laid-Open No. Hei 7-26828, an ozone generator is provided in an air passage opening at one end into a space in the toilet. There has been known a device in which a residual gas removing means is disposed and an ozone gas is applied to a malodorous gas sucked out of a toilet bowl space to decompose malodorous components.

[0003] However, people with lower limb dysfunction due to spinal cord injury, the elderly, and the like often use a portable toilet because it is difficult to move to the toilet room when defecation. Generally, portable toilets are not equipped with deodorizing equipment,
Although a deodorant is used as a deodorizing means, the irritating odor creates a very unpleasant environment for the user.

[0004]

The toilet deodorizing technology using a conventional ozone generator is intended for a flush-type stationary toilet, in which air drawn from the toilet is generated by the ozone generator. A blower that sucks air out of the toilet because it reacts with ozone gas
(Exhaust fan) must be provided, and the whole device becomes large, and maintenance when nitrogen-based oxides adhere to the ozone generator is specialized and troublesome.

[0005] Further, in the conventional deodorizing apparatus for sucking air in the toilet and performing ozone treatment, the ozone gas does not flow into the toilet, so that the ozone gas does not contribute to sterilization in the toilet. For this reason, there has been a problem that the deodorization technology of the stationary toilet cannot be applied as it is to a portable toilet which is basically a storage type.

The present invention has been made in view of such a point, and an object of the present invention is to provide a deodorizing apparatus which can be applied to a stool type toilet including a portable toilet.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a toilet seat cover or a toilet seat cover for covering a toilet seat back surface or a toilet seat plate in a state of facing an inner space of a toilet seat. A linear ozone generator is disposed on a toilet seat portion such as a toilet seat cushion.

[0008]

According to the present invention, since the linear ozone generator is arranged on the toilet seat in a state of facing the interior space of the toilet, the generated ozone gas falls into the toilet by its own weight,
It covers the upper part of the excrement in the toilet. Thus, the odor from the excrement is decomposed by the reaction with the ozone gas. In addition, since the toilet bowl is filled with the ozone gas, bacteria adhering to the wall surface or the like in the toilet bowl are eliminated. As a result, even when used at the bedside, the odor is not emitted, so that the user can use it in a relaxed and mentally stable mood, and the caregiver can perform the treatment in a stable mood.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a schematic structural view of a portable stool type toilet, and FIG. 2 is a vertical sectional front view. In this stool, a toilet seat plate (2) and a lid (3) are pivotally connected to the upper rear end of a body casing (1) so as to be openable and closable. An excrement receiver (4) is mounted in the body casing (1).

A linear ozone generator is provided on the back of the toilet seat plate (2).
(5) is stuck and arranged around the top opening of the toilet,
The linear ozone generator (5) is configured to be connected to an AC commercial power supply via a control box (6).

As shown in FIGS. 3 and 4, the ozone generating portion of the linear ozone generator (5) includes a pair of flexible conductors (7) in a flexible insulator (8) of 0.2 mm. It is formed of an electrode body (9) which can be deformed by disposing in parallel with a gap of a discharge space of about 3 mm. And a pair of flexible conductors
(7) is connected to the connector (10).
0) to the power line (11) from the control box (6), apply an AC high voltage of 5 to 10 kV to the electrode body (9), and apply ozone to the discharge space between the flexible conductors (7). Is the electrode body
It occurs so as to be uniformly distributed along (9).

Ozone gas generated along the electrode body (9) on the back surface of the toilet seat plate (2) descends and stays in the space in the excrement receiver (4) due to the characteristic that the specific gravity is heavier than air. Become. As a result, an ozone layer is formed on the upper part of the excrement in the excrement receiver (4), and the odor component from the excrement is oxidatively decomposed by the reaction with ozone, and is deodorized. .

Since the electrode body (9) is covered with the coating formed of the flexible insulator (8), there is no electric shock even if it is directly touched by a person, and the electrode body (9) reacts with ozone. Even if generated by-products such as nitrogen-based oxides adhere to the surface of the electrode body (9), they can be easily removed by wiping.

The operation of the linear ozone generator (5) is controlled by a signal from the control box (6), and after a start button provided on the control box (6) is operated, Ozone is output more strongly for a preset time (for example, 5 minutes), and the ozone output is automatically stopped when a predetermined operation time (for example, 30 minutes) has elapsed with the ozone output reduced after the set time has elapsed. It is. The operation time of the linear ozone generator (5) is set in advance in a plurality of patterns so that the user can select it. When the abnormality detection mechanism detects that the human body has come into contact with the electrode body (9) to cause a short circuit, the ozone output is stopped and an abnormality notification device such as a buzzer or an indicator light is operated. It is.

Next, the ozone concentration in the state of high output is set to 0.1.
Ozone at the center of the excrement receiver (4) when the above-mentioned linear ozone generator (5) having an ozone concentration of 8 ppm and a low output power of 0.35 ppm is mounted on the back of the toilet seat plate (2). When the change over time in the concentration was examined, it was found that immediately after the ozone output (after 1 minute), the concentration was 0.3%.
Although the concentration was 07 ppm, the concentration increased with time, and reached 2.8 ppm 10 minutes after the generation of ozone, and was maintained at this concentration thereafter. Also, when the change over time of the ozone concentration on the upper surface of the toilet seat plate (2) at that time was examined, it was 0.01 ppm immediately after the ozone output (after 1 minute), but the concentration increased with time and the ozone concentration increased. The concentration became 0.04 ppm 10 minutes after the generation, and this concentration was maintained thereafter.

Next, a 30% trimethylamine solution, a 15% methyl mercaptan sodium solution, and a 28% aqueous ammonia solution were respectively installed at the bottom of the excrement receiver (4), and the linear ozone generator (5) was connected to the toilet seat plate (2). The odor concentration was measured for the case where ozone was applied by attaching to the back surface of ()) and the case where ozone was not applied at all. FIG. 5 shows the change in the odor concentration of the 30% trimethylamine solution, FIG. 6 shows the change in the odor concentration of the 15% methyl mercaptan sodium solution, and FIG.
The ammonia water odor concentration change is shown.

As a result, it was confirmed that the odor in the toilet was decomposed even when the low-concentration ozone gas was used, although there was a difference in the change in odor concentration depending on the odor component.

In the above embodiment, the linear ozone generator (5) is attached to the back surface of the toilet seat plate (2). However, the toilet seat cover that fits over the toilet seat plate (2) or the toilet seat plate (2) is The linear ozone generator (5) may be arranged and fixed to the toilet seat cushion placed on the upper side. Of course, in this case, it is necessary to arrange the linear ozone generator (5) so as to face the toilet space.

In the above embodiment, the portable stool type toilet was described, but the present invention can exert the effect of deodorization and sterilization even when applied to an installation type stool type toilet.

[0020]

According to the present invention, since the linear ozone generator (5) is arranged on the toilet seat portion of the stool in a state of facing the toilet space, the generated ozone falls into the toilet space by its own weight. Thus, the excrement is covered by forming an ozone layer, and the odor component from the excretion reacts with ozone and is decomposed, so that the deodorization of defecation can be suppressed from being emitted indoors. In addition, since the inside of the toilet has an ozone gas atmosphere, the germicidal power of the ozone gas can suppress the growth and proliferation of bacteria.

As a result, in the case of a portable stool type toilet, the odor does not emit even when used at the bedside, so that the user can relax and use it in a mentally stable manner, Can be processed in a stable mood.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a stool type toilet bowl.

FIG. 2 is a vertical sectional front view of a stool type toilet bowl.

FIG. 3 is a front view of an ozone generator.

FIG. 4 is an enlarged perspective view of a portion IV in FIG. 3;

FIG. 5 is a graph showing the change over time in the odor concentration of trimethylamine.

FIG. 6 is a graph showing the change over time in the odor concentration of sodium methyl mercaptan.

FIG. 7 is a graph showing the change over time in the odor concentration of ammonia.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masato Ashida 3-21-8 Nishi-Shimbashi, Minato-ku, Tokyo No. 8 Iwatani Industrial Co., Ltd.Tokyo Head Office (72) Inventor Hidetoshi Suginumitsu 843-4-2 Kume Kurigasako, Tokuyama City, Yamaguchi Prefecture Inside Tokuyama University 1-8-5 Shinsaibashi Kankinai Co., Ltd. F-term (reference) 2D038 BC01

Claims (5)

[Claims] 1. A disinfection and deodorization apparatus for a stool-type toilet in which a linear ozone generator is arranged on a toilet seat portion in a state facing an internal space of the stool-type toilet. 2. The apparatus for removing bacteria according to claim 1, wherein the stool is a portable toilet. 3. The germicidal deodorizing apparatus for a stool-type toilet according to claim 1, wherein a linear ozone generator is arranged on the back surface of the toilet seat plate. 4. The germicidal deodorizing apparatus for a stool-type toilet according to claim 1, wherein a linear ozone generator is arranged on a toilet seat cover fitted on the toilet seat plate. 5. The sanitizing and deodorizing apparatus for a stool-type toilet according to claim 1, wherein a linear ozone generator is disposed on a toilet seat cushion placed on the toilet seat plate.