JPS63293242A - Deodorizing valve of simple flash toilet bowl - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] This is a toilet in which the parts of the deodorizing valve of a simple flush toilet where sewage and filth are likely to adhere, that is, the deodorizing valve body, support, housing, backing, etc., are treated with fluororesin. .

[Industrial application field]

The present invention provides a deodorizing valve for a simple flush toilet, in particular, the deodorizing valve part is treated with fluororesin, and is designed to prevent the adhesion of sewage and filth. This relates to an odor control valve used in toilet bowls.

[Conventional technology]

The simple flush toilet shown in cross-section in FIGS. 1-3 is known. First, referring to Figure 1, (a)
The entire mechanism of a simple flush toilet is shown in the figure, and the same figure (
In a), the odor prevention mechanism enclosed in a circle is shown enlarged. When the handle 13 on the side of the tank 12 is pulled up toward you, the drain valve 15 connected with the chain 14 is opened, and the water 11 in the tank 12 flows to the nozzle 17 through the water conduit 16 connected to the bottom of the tank 12. , squirts into the toilet bowl 18 to clean it.

Figure 1(b) is an enlarged view of the deodorizing mechanism in Figure 1+8)
Referring to , sewage and filth (hereinafter referred to as filth) after cleaning falls onto the dish-shaped deodorizing valve 19, but when the weight exceeds a predetermined value, the balance between the deodorizing valve 19 and the weight 20 is lost, and the deodorizing valve 19 and the weight 20 rotate in the direction of the arrow about the fulcrum 21, and the deodorizing valve 19 is reversed downward as shown by the broken line. The filth falls further downwards and reaches the housing 2.
The waste water passes through a wastewater pipe 23 connected to 2 and falls into a toilet tank (not shown). Then restore it to its original position. In the figure, 24 is a backing, and 25 is a floor surface.

FIG. 2 is a cross-sectional view of a forced open/close valve type. In this example, the lever 26 is pulled by hand in the direction of the arrow (2), and the deodorizing valve 19 is forcibly opened in the direction of the arrow (2) using the link 27. Some levers 26 are operated by a foot pedal.

In the example shown in FIG. 3, a rubber cylindrical or conical membrane valve deodorizing valve 28 is provided at the outlet of the toilet bowl 18. The seal portion 28a at the tip of the membrane valve type deodorizing valve 28 is closed by the elasticity of rubber or by a spring, but it opens in the direction of the arrow and closes again as dirt and washing water pass through. In addition, in FIG. 3, 29 is a protection tube, 30 is a floor flange, 31 is a floor flange backing, 32 and 33
is the seal part.

[Problem that the invention seeks to solve]

Simple flush toilets have similar or modified structures other than those described above, but all of them are equipped with odor control valves that are different from the traps of flush toilets.

By the way, these simple flush toilets only use 2.
00-300m I! Therefore, during long-term use, dirt from the valve and other dirt gradually adheres to the deodorizing valve and its surroundings, increasing the number of cleaning operations and increasing the amount of washing water. This type of simple flush toilet is used in pumping toilets, so as the amount of flushing water increases, the cycle at which the toilet tank is full becomes shorter.
This increases pumping costs and is one of the causes of complaints. In addition, if there is a lot of deposits on the odor control valve, the weight of the valve may cause it to remain open, leading to problems such as the odor from the toilet tank filling the toilet room, and other animals crawling up through the gap in the open valve. be.

Utility Model Publication No. 57-16945 describes a deodorizing valve (occlusion type)
A toilet bowl is disclosed that has a structure that sprays cleaning liquid onto the back surface of the deodorizing valve and prevents filth from adhering to the back surface of the deodorizing valve.

However, this structure requires branch pipes and conduits to branch and guide the flushing water, cleaning liquid spouting pipes, etc., which not only complicates the structure and increases the cost of the simple flush toilet, but also reduces the amount of flushing water used. There is a risk that the above-mentioned problems may occur.

The present invention was created in view of these points, and an object of the present invention is to provide a simple flush toilet that prevents filth from adhering to the deodorizing valve while maintaining the structure of the conventional simple flush toilet. do.

[Means for solving problems]

In the present invention, the deodorizing valve 19 shown in FIGS.
, is obtained by processing the membrane valve 28 shown in FIG. 3 with a fluororesin.

[Effect]

Fluororesin has superior non-adhesive and lubricating properties compared to other materials, so it uses these properties to prevent dirt from adhering to it, and it can be cleaned while performing the function of an odor control valve, such as preventing bad odors. Achieve water savings.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fluororesins are typified by tetrafluoroethylene, hexafluoroethylene, and the like, and their characteristics include superior non-adhesion, lubricity, and chemical resistance compared to other resins. For example, the coefficient of kinetic friction is 0.48 for acrylic resin, 0.3 for polypropylene, and 0.37 for ABS resin, whereas it is 0.11 for tetrafluoroethylene, and 1 for other resins.
It shows a low value of 74 to 1/3. This shows that tetrafluoroethylene has extremely high non-stick properties and lubricity.

Utilizing the characteristics of the fluororesin described above, the deodorizing valve 19 and membrane valve type deodorizing valve 28 are treated with fluororesin.

The deodorizing valve 19 is generally made of heat-resistant materials such as iron, aluminum, stainless steel, and ceramics, and of vinyl chloride,
May be made of non-heat resistant materials such as ABS polypropylene, sudirol and other resins and rubber. In the case of heat-resistant materials, the fluororesin processing method involves coating the fluororesin in advance with a thin film of 5 to 100 μm by spraying, painting, dipping, etc., and then baking it at a temperature of 100 to 400''C.

In an example where the main material is a non-heat resistant material, 5 to 50% of a fluororesin for mixing is mixed in advance, and then molded.

In addition, in addition to the deodorizing valve and the membrane valve type deodorizing valve, there is also a fulcrum 21 which is a support, a seal part 32, a housing 22, and a protective tube 29.
Even better effects can be obtained if the backing 24 and the like are also treated with fluororesin.

〔Effect of the invention〕

As described above, according to the present invention, by applying fluororesin treatment to the deodorizing valve and membrane valve type deodorizing valve, it is possible to prevent the adhesion of filth, and as a result, the operation of the deodorizing valve is smooth over a long period of time. Moreover, since it is carried out completely, it is effective in preventing bad odors in simple flush toilets and saving flushing water. According to experiments conducted by the present inventors, when comparing those treated with fluororesin and those not treated, under the same conditions, the amount of dirt deposited is 25% less on those treated with fluororesin. In addition, even in the case of adhesion, f1 was found to require 18% less washing water with the fluororesin-treated product.

[Brief explanation of the drawing]

Figure 1 is a diagram of a simple flush toilet, and (al is an overall sectional view, fb) is an enlarged sectional view of the deodorizing mechanism in the same figure (al), Figure 2 is a sectional view of the forced open/close type deodorizing valve, and Figure 3 is a diagram of a simple flush toilet. 1 is a cross-sectional view of a membrane valve type deodorizing valve. In Figures 1 to 3, 17 is the deodorizing valve, 21 is the fulcrum, 22 is the housing, 24 is the banking, 28 is the membrane valve type deodorizing valve, and 29 is the protection tube. , 32 is the seal part. Patent applicant Nepon Co., Ltd. agent Patent attorney Akimoto Kuki Yoshiyuki Osuga et al.
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Claims (3)

[Claims] (1) A deodorizing valve for a simple flush toilet, characterized in that the deodorizing valve (19, 28) is treated with fluororesin. (2) The deodorizing valve according to claim 1, characterized in that, when the deodorizing valve (19) is made of a heat-resistant material, a fluororesin thin film is coated on the surface of the deodorizing valve. (3) The deodorizing valve according to claim 1, wherein when the deodorizing valve (28) is made of a non-heat resistant material, a fluororesin is mixed into the material.