JPH0246523Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of the invention" (Field of industrial application) The present invention relates to a double-structured dew-proof tank attached to a flush toilet or the like.

(Conventional dew-proof tank) FIG. 3 is a side sectional view showing a conventional dew-proof tank 2 installed at the rear of the flush toilet bowl 1. As shown in FIG. The dew-proof tank 2 is comprised of an internal tank 3 that stores flush water for the toilet bowl 1a of the flush toilet 1 and is housed within an exterior container 4. In other words, this anti-condensation tank 2 prevents the air in contact with the outer peripheral surface of the entire tank, that is, the outer surface of the outer case 4, from being cooled by the water stored in the tank.
The exterior container 4 is designed to prevent dew from adhering to its outer surface.

Incidentally, the flush toilet bowl 1 generally generates a siphon effect when flushing the toilet bowl 1a, thereby making it possible to strengthen the flushing ability and save water for flushing. However, the siphon effect does not disappear immediately even when the supply of washing water to the toilet bowl 1a is stopped;
Continue for a while. Therefore, when the toilet bowl 1a is completely cleaned, almost no water remains in the toilet bowl 1a, and a water sealing effect cannot be obtained. Therefore, conventional dew-proof tank 2
Now, by temporarily delaying the stoppage of the flushing water supply and separately supplying the amount of water required for the water seal, the toilet bowl 1a can be brought to a predetermined water level (as shown in the figure).
WL). That is, a short rubber tube 6 is connected to a water tap 5 such as a ball tap that supplies water into the internal tank 3, and the water discharge end of the rubber tube 6 is formed between the outer surface of the inner tank 3 and the inner surface of the outer case 4. It is designed so that it faces the surrounding space. Therefore, the sealing water from the rubber tube 6 flows down the inner surface of the outer container 4 and reaches the float valve 7 interposed between the bottom of the internal tank 3 and the bottom of the outer container 2.
It is guided to the flush toilet 1 through the inside of the valve seat 7a.

(Problems to be solved by the invention) As mentioned above, the anti-condensation tank 2 is designed so that the entire circumference of the internal tank 3 for storing cold water is covered with the outer case 4, so that the air surrounding the outer case 4 is cooled. I've made sure that it doesn't happen. However, since the water sealing water flowing down from the rubber tube 6 is transmitted through the inner surface of the outer case 4, the outer case 4 is partially cooled, and as a result, condensation occurs on the outer surface of the outer case 4. I was getting used to it. Needless to say, if the exterior container 4 condenses, it will get dirty and freeze (leading to damage to the toilet bowl, etc.)
It causes. In particular, in the illustrated embodiment of the dew-proof tank 2, condensation occurs on the back or bottom surface of the outer case 4, which is a place that tends to get wet and is difficult to clean, which may lead to the growth of mold and the like. It was on.

The present invention was developed in view of the above circumstances, and an object of the present invention is to provide a new dew-proof tank (hereinafter referred to as the tank of the present invention) that can completely suppress the generation of dew.

``Structure of the invention'' (Means for solving problems) The gist of the proposed tank is that an internal tank for storing flush water for the toilet bowl of a flush toilet is housed in an external container for preventing condensation. In the tank, in the peripheral space formed between the outer surface of the internal tank and the inner surface of the exterior container, a heat-absorption prevention passage for water sealing water that is branched and supplied from a water tap such as a ball tap to the toilet bowl after washing is provided. This is what is happening.

(Function) Water for sealing is branched from the water storage faucet of the internal tank and supplied to the flush toilet bowl, and passes through the heat removal prevention passage without coming into contact with the inner surface of the outer container. Therefore, the outer case is not cooled and no dew condensation forms on its outer surface.

(Example) The present invention will be described below based on drawings showing examples thereof.

FIG. 1 is a partially cutaway perspective view of the tank according to the invention from the rear side. The most distinctive features of this tank are the outer surface of the inner tank 3 and the exterior container 4.
Flush toilet 1
(indicated by a two-dot chain line) is provided.

The heat removal prevention passage 10 is constituted by a vertical passage 8, a valve seat 9 for the float valve 7 (see FIG. 3), and a short rubber tube 6. The vertical passage 8 is provided vertically along the outer surface of the internal tank 3, and is formed into a tubular shape using an appropriate resin material (preferably one with low thermal conductivity). Further, as shown in FIG. 2, the valve seat 9 has a water sealing water passage 9 formed therein separated from the cleaning water passage 9a.
b is provided, and a receiving portion 9c having an insertion opening 9d for the vertical passage 8 is provided so as to protrude from the back surface of the internal tank 3 (see FIG. 1). Further, as shown in FIG. 1, the rubber tube 6
is attached so as to communicate the branch pipe 5a of the water tap 5 and the vertical passageway 8.

In the tank constructed in this way, by rotating the cleaning handle (not shown) or the like, the water stored in the internal tank 3 starts to be supplied to the flush toilet bowl 1, and at the same time, the water from the water tap 5 is released from its discharge port 5b. Water is supplied from the branch pipe 5a into the internal tank 3, and from the branch pipe 5a to the heat removal prevention passage 10. Even if a predetermined amount of water in the internal tank 3 is supplied to the flush toilet 1 and the float valve (not shown) is closed, water will not be supplied until the water level in the internal tank 3 reaches a predetermined water storage level. Water continues to be supplied from the branch pipe 5a of the plug 5 to the heat removal prevention passage 10. Therefore, flush toilet 1
After the siphon effect disappears, the water supplied to the heat removal prevention passage 10 becomes water sealing water,
Set the water level inside the flush toilet bowl 1 to a specified level (see WL in Figure 3).
Make it. Naturally, the water passing through the heat removal prevention passage 10 does not come into contact with the inner surface of the outer case 4, so the outer case 4 is not cooled. Therefore, the air around the outer case 4 is not cooled and no dew is generated.

(Study of another aspect) The vertical passage 8 of the heat removal prevention passage 10 is connected to the internal tank 3.
It may be formed integrally with. Also,
The rubber tube 6 may be replaced with a long one, the vertical passage 8 may be omitted, and the discharge end of the long rubber tube may be inserted directly into the insertion opening 9d of the valve seat 9. In this way, the configuration and shape of the tank of the present invention can be changed as appropriate depending on the embodiment.

"Effects of the Invention" As is clear from the above explanation, according to the dew-proof tank according to the present invention, dew condensation does not occur on the outer packaging. Moreover, the water for the water seal supplied from the faucet can be reliably and quickly guided to the flush toilet via the heat removal prevention passage. In other words, with conventional dew-proof tanks, water for sealing once spreads out at the bottom of the outer container, and then collects at the valve seat for the float valve, so all of the water for sealing goes into the flush toilet. It takes a long time for the water to be supplied, and even after the water has finished being supplied to the internal tank, the water continues to flow.
There was the harsh sound of flowing water. The tank of the present invention has many excellent advantages, such as being able to overcome these drawbacks.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the tank of the present invention with a portion cut away from the rear side, Fig. 2 is a perspective view showing a half section of the valve seat for the float valve that constitutes the heat removal prevention passage, and Fig. 3 is a side sectional view showing a conventional dew-proof tank. 1... Flush toilet bowl, 1a... Toilet bowl, 3... Internal tank, 4... Exterior container, 5... Hydrant, 10... Heat removal prevention passage.

Claims (1)

[Scope of utility model registration request] In a dew-proof tank in which an internal tank for storing wash water for the toilet bowl of a flush toilet is housed within a condensation-preventing outer case, a circumferential space formed between the outer surface of the inner tank and the inner surface of the outer case is A dew-proof tank characterized by being provided with a heat-absorption prevention passage for water sealing water to be branched and supplied from a water tap such as a ball tap to a toilet bowl after washing.