JPH0352866Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an improvement of the hot water supply system in a warm water flushing toilet bowl that cleans local parts of the human body.
The details relate to improvements to the air vent system for hot water tanks.

[Prior Art] Toilet bowls equipped with a hot water cleaning device that cleans the buttocks of the human body with warm water have been rapidly becoming popular in recent years.One type of warm water flushing toilet bowl is one that introduces water from a water supply tank into a hot water tank. There is one in which hot water is heated and supplied from the hot water tank to a nozzle to be ejected. This water supply tank is, for example, provided within the low tank, or is also used as the low tank. Further, the hot water tank is installed, for example, inside the toilet bowl on the back side of the toilet bowl, or inside the toilet seat box or a control box integrated therewith. Further, the hot water tank may be housed in a hot water washing device box placed near the toilet bowl.

[Problems to be solved by the invention] In the hot water tank of such a warm water flushing toilet, it is necessary to connect an air vent pipe to vent air when introducing water into the empty hot water tank. This has been done traditionally.

Conventionally, this air vent piping has been installed along the side wall of the low tank, with its tip leading into the low tank, but the problem is that the air vent piping is visible from the outside, making it look extremely unsightly. There is. Furthermore, since the low tank and the toilet bowl are usually packaged and shipped separately, the number of man-hours required to connect the pipes on site increases and the installation work becomes complicated.

[Means for Solving the Problems] The tank device for the hot water flushing toilet of the present invention is equipped with a hot water tank, a water supply tank, and a water supply pipe that connects the hot water tank and the water supply pipe. It is passed through the water supply pipe, and the tip of the air vent pipe is opened above the water supply outlet of the water supply tank.

[Function] In this invention, since the air vent pipe is passed through the water supply pipe, it is not visible from the outside and has a very good appearance.

Moreover, by connecting the hot water tank and the water supply tank with the water supply piping, the air vent piping is also installed at the same time, making the assembly work extremely easy and quick.

[Examples] The present invention will be described in more detail below with reference to embodiments shown in the drawings.

FIG. 1 is an overall vertical sectional view showing the structure of a tank device for a warm water flush toilet according to an embodiment of the present invention. Reference numeral 10 denotes a Western-style toilet bowl, which is equipped with a toilet bowl 12, and a toilet seat 14 and a toilet lid 16 provided on its upper side.
Furthermore, in this embodiment, a low tank 18 serving as a water storage tank for supplying flush water into the toilet bowl 12 is fixedly installed on the upper surface of the western-style toilet bowl 10 on the back side. This low tank 18 supplies toilet bowl flushing water to the toilet bowl 10 via a float valve device 20. Reference numeral 22 indicates an overflow pipe.

A hot water cleaning nozzle 24 is attached to the toilet bowl 12, and a hot water tank 26 is installed inside the toilet bowl 10 on the back side of the toilet bowl 12.
Hot water can be supplied from the hot water tank 26 to the nozzle 24 via the hot water tank 8 and the pump 30.

A water supply tank 32 for supplying hot water to the hot water tank 26 is installed inside the low tank 18 . In this embodiment, the water supply tank 32 is provided below the lowest water level L ₁ when the float valve device 20 discharges toilet flush water. Further, in this embodiment, the water supply tank 32 has an appropriate expandable and contractible structure such as a bellows structure, and is configured to increase its internal volume when water is supplied therein.

Reference numeral 34 indicates this water supply tank 32 and hot water tank 2.
6, and reference numeral 36 is a riser pipe for supplying water into the water tank 32.
In this embodiment, the riser pipe 36 has a bellows structure and is configured to be deformable as the water tank 32 expands and contracts. A ball tap 40 is provided above the riser pipe 36 to control the supply of water from the water pipe 42 into the low tank 18. That is, when the float valve 20a is pulled up and water is released into the toilet bowl 12, the floating ball 40a
descends, the ball tap 40 opens, and the water pipe 4
2, tap water is introduced into the low tank 18.
In this embodiment, the introduced tap water is first introduced into the riser pipe 36 and then the riser pipe 36
Water overflows through the window hole 44 provided at the top and is supplied to the low tank 18 until it reaches a predetermined water level _L2 .

An air vent pipe 46 is connected to the air vent 26a of the hot water tank 26, and the air vent pipe 46 is drawn into the water supply pipe 34 from the middle of the water supply pipe 34, and then passes through the pipe 34. The water passes through the water supply outlet 32a in the water supply tank 32 and reaches halfway into the riser pipe 36.

In the warm water flush toilet configured in this way,
When supplying water into the empty hot water tank 26, the upper end 46a of the air vent pipe 46 is connected to the water supply tank 3.
Since the water supply port 32a is located above the water supply port 32a of No. 2, the water supply port 32a and the air vent pipe tip 46a are
There is a head difference between the water supply tank 3 and
The water in the hot water tank 2 smoothly flows into the hot water tank 26 while pushing out the air remaining in the hot water tank 26. The pushed out air passes through piping 46,
Air bubbles form from the tip opening 46a of the riser pipe 36.
It rises inside and is released into the atmosphere.

The water introduced into the hot water tank 26 is heated by the heater 26b, which is controlled according to the temperature detected by the thermostat 26c, and becomes hot water. By opening the water valve 28 and operating the pump 30, hot water is drawn out from the hot water tank 26 and sent to the nozzle 24, where it is used to wash the human buttocks.

Note that when water is supplied from the water supply tank 32 to the hot water tank 26, the water supply tank 32 contracts, and the water level in the low tank 18 accordingly decreases. Then, the floating ball 40a descends and the ball tap 4
0 is opened and tap water is supplied from the water pipe 42 into the water supply tank 32. Furthermore, when the float valve 20a is pulled up as described above and the wash water in the low tank 18 is supplied into the toilet bowl, the ball tap 40 is opened and tap water is supplied into the low tank 18.

As shown in the figure, in this embodiment, the air vent pipe 46 is passed through the water supply pipe 34, and is not visible from the outside, giving it a very good appearance. In addition, the water supply pipe 34 is connected to the water supply outlet 32 of the water supply tank 32.
The piping 46 can be installed by simply connecting it to a, reducing the number of man-hours required for piping installation and making the assembly extremely easy and quick.

In addition, in the above embodiment, since the air vent piping opens inside the water supply tank 32, the sound of bubbles generated when air is extracted is doubly blocked by the water supply tank and the low tank, and is not exposed to the outside. The effect is that the sound is almost inaudible.

FIG. 2 is a sectional view of a main part showing another embodiment of the present invention. In this embodiment, as in the embodiment of FIG.
However, in this embodiment, a water supply chamber 48 is installed on the side of the water supply tank 32, and a water supply outlet 32a is provided at the lower end of this water supply chamber 48. In addition, a riser pipe 50 is provided in the water supply chamber 48.
The air vent pipe 46 that has been drawn through the water supply pipe 34 is inserted into the riser pipe 50 without being introduced into the water supply tank 32. In this embodiment as well, the hot water tank 26
The air extracted from the air vent pipe 46 is drawn out through the air vent pipe 46, but this air vent pipe 46 is not visible from the outside, and when the water supply pipe 34 is connected, the air vent pipe 46 is can be arranged.

In the embodiment shown in FIGS. 1 and 2, the water supply tank 32 is provided below the lowest water level L ₁ at the time of flushing water, and is placed in a dead space within the low tank 18. Therefore, the dead space can be used effectively and a water supply tank can be installed without increasing the volume of the low tank 18, and the low tank also does not reduce the effective storage amount of toilet flush water at all or hardly at all.

FIG. 3 is a vertical sectional view of a main part showing still another embodiment of the present invention.

In the embodiment shown in FIG. 3, the water supply tank is also used as the low tank 18, and a portion of the toilet flush water in the low tank 18 can be supplied to the hot water tank 26 from the water supply port 32a through the water supply pipe 34. ing. A pipe 46 for extracting air from the hot water tank 26 is similarly passed through the water supply pipe 34 and inserted into the low tank 18. In this embodiment as well, the air vent pipe 46 is similarly invisible from the outside, and the air vent pipe 46 can be installed at the same time as the water supply pipe 34 is installed.

Although the pump 30 is installed upstream of the hot water tank 26 in FIG. 3, the pump 30 may be installed downstream of the hot water tank 26 as shown in FIGS. 1 and 2. Furthermore, it is clear that the pump may be installed upstream of the hot water tank 20 in FIGS. 1 and 2 as well as in FIG. 3. Reference numeral 52 in FIG. 3 indicates a water supply pipe to the handwash pipe. Since the other configurations are the same as those in FIGS. 1 and 2, the same or corresponding parts are given the same reference numerals and the explanation thereof will be omitted.

In addition, although the above-mentioned embodiments all relate to the case where the low tank is attached to the toilet bowl, the present invention is also applicable to the case where the low tank is installed away from the toilet bowl. Furthermore, the present invention can also be applied to a type of toilet in which a hot water tank, a pump, etc. are housed in a box separate from the toilet, and this box is placed on the side of the toilet. Naturally, the present invention can also be applied to cases where a hot water tank or the like is provided within the toilet box.

[Effects of the invention] As described above, according to the invention, the air vent piping from the hot water tank can be installed at the same time as the water supply piping connecting the water supply tank and the hot water tank is installed. It becomes possible to perform assembly work extremely easily and quickly. Moreover, the air vent piping is not visible from the outside, and the appearance is improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the overall configuration of an embodiment of the device of the present invention, and FIGS. 2 and 3 are longitudinal cross-sectional views of main parts showing different embodiments. 10...Western-style toilet bowl, 12...Toilet bowl, 18...Low tank, 24...Hot water cleaning nozzle, 26...Hot water tank, 30...Pump, 32...Water supply tank, 34...Water supply piping, 40... ball tap,
46...Air vent piping.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A hot water tank connected to enable hot water supply to a cleaning nozzle attached to a toilet bowl, a water supply tank to the hot water tank, a water supply outlet of the water tank, and a hot water tank. a water supply pipe connecting the hot water tank, one end of which is connected to an air vent provided in the hot water tank, the other end of which is connected to an air vent provided in the hot water tank, the other end of which is connected to the air vent provided in the hot water tank; A tank device for a hot water flush toilet, which has an air vent pipe that opens upward. (2) The device according to claim 1, wherein the water supply tank is installed in a toilet flush water storage tank. (3) The device according to claim 2, wherein the other end of the air vent pipe is opened inside the water tank.