JP4507370B2 - Toilet equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a toilet apparatus capable of preventing a problem of cold water discharge at the start of cleaning and performing comfortable cleaning when heating cleaning water with an instantaneous heat exchanger.
[0002]
[Prior art]
Conventionally, this type of toilet apparatus is generally disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-120145. FIG. 7 shows a water circuit of a conventional toilet device. In recent years, toilet devices equipped with instantaneous heat exchangers are becoming mainstream in order to achieve compactness and energy saving. In this type of toilet device, wash water is supplied from a water supply terminal to the water shutoff electromagnetic valve 5 through the branch tap 1, the connecting pipe 2, the backflow prevention valve 3, and the constant flow valve 4, and the flow sensor 7 is connected during washing. After being supplied to the instantaneous heat exchanger 8 and heated to a predetermined temperature, the water channel is switched by the water channel switching valve 9 and ejected from each cleaning nozzle toward the local area. Reference numeral 6 denotes a relief valve for protecting the instantaneous heat exchanger 8.
[0003]
Usually, the temperature control in the instantaneous heat exchanger 8 is performed by the flow rate of the wash water obtained by a flow sensor (not shown), the inlet temperature of the wash water obtained by a temperature thermistor (not shown), and the outlet temperature. It is done so as to be optimal based on the temperature of the tapping water. Then, at the start of cleaning, the cleaning water that has not reached the predetermined temperature in the instantaneous heat exchanger is drained from the waste water channel 12 to the toilet, and when the predetermined temperature is reached, the cleaning water is supplied to the cleaning channels 10 and 11. And is ejected from a cleaning nozzle.
[0004]
Further, in order to ensure a predetermined cleaning power even if the cleaning water is reduced as part of energy saving, a method of forcing air into the cleaning water using the air pump 13 is becoming common. In this case, air is forcibly mixed on the primary side of the water channel switching valve 9, and a mixture of washing water and air is branched by the water channel switching valve 9 to the buttocks cleaning water channel 10 or the bidet cleaning water channel 11, from each cleaning nozzle. It is configured to be ejected and washed.
[0005]
[Problems to be solved by the invention]
However, in the above conventional toilet device, at the start of cleaning, the cleaning water in the instantaneous heat exchanger is supplied to each cleaning nozzle when it reaches a predetermined temperature, so that the cleaning water that has not reached the predetermined temperature is locally delivered. Although it is avoided to be ejected, the cleaning water is cooled by the slight residual water inside the cleaning nozzle, but the cleaning water that has not reached the predetermined temperature is locally supplied from each cleaning nozzle to the local area. There was a problem of being uncomfortable for the user when sprayed.
[0006]
Further, even if the cleaning water that has not reached the predetermined temperature is to be thrown away from each cleaning nozzle, if the cleaning nozzle protrudes, the cleaning water that has not reached the predetermined temperature will hit the local area. Conversely, if the cleaning nozzles is performed in a state that does not protrude, when the washing water is projected each washing nozzle Once at the prescribed temperature, to as wash water does not hit the part position other than the local Once the water channel switching valve 9 is discarded, the water channel 12 is operated to stop the water supply to each cleaning nozzle, and when each cleaning nozzle protrudes, the water channel switching valve 9 must be opened again to each cleaning nozzle side. In addition, a great amount of time is required until the cleaning is performed after the instruction to start the cleaning, and there is a problem in that the user feels uncomfortable.
[0007]
In addition, air is forcibly mixed into the cleaning water on the primary side of the water channel switching valve 9, but there is a problem that bubbles in the cleaning water are finely dispersed when passing through the water channel switching valve 9 and a strong cleaning power cannot be secured. It was.
[0008]
The present invention solves the above-described conventional invention, and prevents toilet water that does not reach a predetermined temperature at the start of cleaning from being sprayed locally from the cleaning nozzle and has a short protruding time for each cleaning nozzle. It is an object of the present invention to provide a toilet apparatus that secures a strong cleaning power without finely dispersing bubbles in the cleaning water.
[0009]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, a toilet apparatus according to the present invention includes a heat exchanger that heats washing water to a predetermined temperature, a waterway switching valve that can be switched between a buttocks washing water channel, a bidet washing water channel, and a waste water channel. The water channel switching valve is configured to allow water to pass simultaneously with one of the buttocks cleaning water channel and the bidet cleaning water channel and the waste water channel.
[0010]
As a result, at the start of cleaning, the cleaning water that has not reached the predetermined temperature in the instantaneous heat exchanger is thrown away by passing water simultaneously with one of the cleaning water channels and the waste water channel, and the cleaning water is directed from each cleaning nozzle toward the local area. Without discharge of water (amount of drainage from the waste water channel to the toilet> the amount of water supplied to each cleaning nozzle) The remaining water inside each cleaning nozzle is also removed with the cleaning water being heated, and when it reaches the specified temperature, the water channel switching valve Is operated to each washing water channel side and completely supplied to each washing nozzle, so that unnecessary operation of the conventional water channel switching valve is eliminated, and the washing water that has reached a predetermined temperature in a short time is supplied from each washing nozzle. It is possible to inject locally and eliminate the possibility of causing discomfort to the user.
[0011]
A water switching valve, an air pump, and an air switching valve, wherein the air switching valve selectively communicates with a buttocks cleaning water channel and a bidet cleaning water channel, and the air pump is used from a primary side of the air switching valve. Air is forcibly mixed in the cleaning water, and the air switching valve is open to the buttocks cleaning water channel when not energized.
[0012]
By forcibly mixing air on the secondary side of the water channel switching valve in this way, it is possible to ensure a strong detergency without finely dispersing bubbles in the wash water by the water channel switching valve. In addition, since the frequency of use is higher in the butt washing than in the bidet washing, if the air switching valve is always opened in the butt washing water channel when not energized, the number of energizations is reduced, leading to an energy saving effect. Moreover, the user's discomfort due to the operating sound of the air switching valve can be reduced as much as possible.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 includes a heat exchanger that heats the washing water to a predetermined temperature, a waterway switching valve that can be switched to a buttocks washing waterway, a bidet washing waterway, and a wastewater waterway, and forcing air into the washing water. And an air switching valve for selectively communicating the air supplied from the air pump to the buttocks cleaning water channel and the bidet cleaning water channel, Water can be passed simultaneously with one of the buttocks washing channel and the bidet washing channel and the waste water channel, and the air switching valve is open to the buttocks washing channel when not energized . Wash water that has not reached the specified temperature is flushed and discarded simultaneously with one of the wash water channels and the waste water channel, and the wash water does not spout from each wash nozzle toward the local area (the amount of drainage from the waste water channel to the toilet> Water supply to each cleaning nozzle) Residual water inside the washing nozzle is also removed with the washing water being heated, and when the temperature reaches a predetermined temperature, the water channel switching valve is operated to each washing water channel side and completely supplied to each washing nozzle. Unnecessary operation of the switching valve is also eliminated, and the cleaning water that has reached a predetermined temperature in a short time can be sprayed locally from each cleaning nozzle, thereby eliminating the possibility of causing discomfort to the user.
[0014]
In addition, a water switching valve, an air pump for forcing air into the cleaning water, and an air switching valve for selectively allowing the air supplied from the air pump to communicate with the buttocks cleaning water channel and the bidet cleaning water channel The air switching valve is configured to be open to the buttocks washing water channel when not energized, so that air is forced into the secondary side of the water channel switching valve so that air bubbles in the wash water are generated by the water channel switching valve. Strong detergency can be secured without being finely dispersed. In addition, since the frequency of use is higher for butt washing than for bidet washing, if the air switching valve is always open to the butt washing water channel when not energized, there is no need to energize during butt washing, leading to an energy saving effect. In addition, it is possible to reduce uncomfortable feeling caused by the sound of the user when the air switching valve operates, and to further increase the comfort level of the user.
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
Example 1
FIG. 1 shows a water circuit of a toilet apparatus according to Embodiment 1 of the present invention.
[0017]
In FIG. 1, wash water is supplied from a water supply terminal to a water shutoff electromagnetic valve 5 through a branch tap 1, a connecting pipe 2, a backflow prevention valve 3, and a constant flow valve 4, and at the time of washing, an instantaneous type is passed through a flow sensor 7. Wash water supplied to the heat exchanger 8 and heated to a predetermined temperature is switched by a water channel switching valve 9 and ejected from each of the cleaning water channels 10 and 11 to a local area through a cleaning nozzle (not shown). Yes.
[0018]
In addition, an air switching valve 14 is provided on the secondary side of the air pump 13, and the buttocks cleaning water channel 10 or the bidet cleaning water channel 11 is selected and communicated to forcibly mix air into the cleaning water.
[0019]
Next, the configuration will be described using the specific configuration of the water channel switching valve 9 shown in FIGS. The water channel switching valve 9 includes a cylindrical valve box 15, a valve body 16 that is rotatably fitted therein, and a motor 17 that rotates the valve body 16 to an arbitrary rotational position. The tube valve box 15 includes a buttocks washing water channel 10, a bidet washing water channel 11, a waste water channel 12, a washing water port 18, a bidet washing port 19, a waste water port 20, and instantaneous heat exchange. An inflow port 21 to which cleaning water from the vessel 8 is supplied is provided. The butt washing port 18 and the bidet washing port 19 are installed at a first position on the upper part of the cylinder valve box 15 with an interval of 180 ° in the circumferential direction, and the waste water port 20 is installed in the cylinder valve box 15. Is installed at a position intermediate between the buttocks cleaning port 18 and the bidet cleaning port 19 in the circumferential direction at the second position below the bottom. The inflow port 21 protrudes from the lower end of the tubular valve box 15.
[0020]
The valve body 16 is composed of a shaft body, and a shaft hole is formed inside the valve body inflow portion 22 at the lower end. A cleaning valve hole 23 penetrating from the shaft hole to the outer periphery is formed at the first position on the upper portion of the cylinder valve box 15, and the butt cleaning port 18 or bidet cleaning is performed according to the rotation of the valve body. The port 19 and the valve body inflow portion 22 communicate with each other. In addition, a waste water hole 24 penetrating from the shaft hole to the outer periphery is formed at a second position below the cylindrical valve box 15, and the waste water port 20 and the valve body are formed according to the rotation of the valve body. The inflow part 22 communicates.
[0021]
The cleaning valve hole 23 has a curved shape that spreads outward from the central portion in the axial direction so that the water passage area to the buttocks cleaning port 18 or the bidet cleaning port 19 can be varied according to the rotation angle. It is possible to change not only the water channel but also the washing flow rate. Any shape can be adopted as the shape of the cleaning valve hole 23 as long as the water passage area can be changed according to the angle.
[0022]
FIG. 5 shows a specific configuration of the air switching valve 14, which includes an outer box 25, a plunger 26, a plunger pocket 27, and the like. In this configuration, the air that has entered from the air inflow port 28 is ejected from the air outflow port A29 or the air outflow port B30 by switching the plunger 26 by turning on / off the energization.
[0023]
About the toilet apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
[0024]
First, for example, at the start of butt washing, the valve body 16 is made to have a curved shape with the washing valve hole 23 extending outward from the central portion in the axial direction to the position shown in FIG. Both the cleaning port 18 and the waste water port 20 are moved to a position where water can be passed simultaneously. Therefore, cleaning water is supplied while controlling the instantaneous heat exchanger, and when the predetermined temperature is reached, the valve body 16 is opened to the buttocks cleaning port 18 side.
[0025]
As described above, in this embodiment, most of the wash water that has not reached the predetermined temperature in the instantaneous heat exchanger is discarded and removed from the water channel 12 to the toilet, and a small amount of wash water is allowed to flow through the buttocks wash channel. Therefore, it is possible to eliminate the residual water in the buttocks washing nozzle, so that the washing water having a temperature lower than the set temperature does not spout from the buttocks washing nozzle toward the local area, and the user feels cold at the start of washing. It can solve problems that cause discomfort.
[0026]
Further, when the above-mentioned method is adopted, when the washing water reaches a predetermined temperature, the instant toilet 16 may be opened to the buttocks washing port 18 side. Since unnecessary operation that opens to the buttocks cleaning port 18 side is eliminated, the time from the start of cleaning to the cleaning is shortened, and the user can use it comfortably. The same method is used for bidet cleaning.
[0027]
Further, in this embodiment, an air switching valve 14 is provided on the secondary side of the air pump 13, and cleaning water and air are forcibly mixed in the butt cleaning water channel 10 and the bidet cleaning water channel 11, and the air switching valve 14 is not energized. At this time, the side where the air outflow port is opened is connected to the buttocks washing water channel 10 side. For this reason, the air switching valve 14 does not operate during the butt washing.
[0028]
By doing so, there is no problem that bubbles in the cleaning water are finely dispersed when passing through the thin cleaning valve hole 23 in the water channel switching valve 9, and it is possible to ensure a strong cleaning power. In addition, since the use frequency is higher in the butt cleaning than in the bidet cleaning, the number of metal sounds (contact sound between the plunger 26 and the plunger wall 27) generated when the water channel switching valve 9 operates is reduced. By reducing the number of energizations, the energy saving effect was also improved, and the user's satisfaction and comfort were increased. In addition, since the direction which uses a positive displacement type air pump as the air pump 13 becomes large as a lump of air, strong detergency can be ensured.
[0029]
【The invention's effect】
As described above, according to the first aspect of the present invention, cleaning water that has not reached the predetermined temperature at the start of cleaning is not sprayed locally from the cleaning nozzle, and unnecessary operation of the water channel switching valve is eliminated. As a result, it is possible to provide a toilet device in which the protruding time of each cleaning nozzle is shortened, and to ensure strong cleaning power without causing fine dispersion of bubbles in the cleaning water, and to generate an operating sound of the air switching valve. It is possible to provide a toilet apparatus that is reduced as much as possible and does not cause discomfort to the user.
[Brief description of the drawings]
FIG. 1 is a water circuit diagram of a toilet apparatus according to a first embodiment of the present invention. FIG. 2 is a partial cross-sectional view of a water channel switching valve in the apparatus. FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a cross-sectional view showing the internal configuration of the air switching valve in the apparatus. FIG. 6 is a characteristic diagram showing the relationship between the valve body rotation angle and the flow rate in the apparatus. Water circuit diagram of toilet equipment [Explanation of symbols]
8 Instantaneous heat exchanger (heat exchanger)
9 Waterway switching valve 10 Butt washing waterway 11 Bidet washing waterway 12 Waste waterway 13 Air pump 14 Air changeover valve

Claims (1)

A heat exchanger for heating the wash water to a predetermined temperature;
A water channel switching valve capable of switching the wash water to a buttery water channel, a bidet water channel and a waste water channel ;
An air pump for forcing air into the wash water;
An air switching valve for selectively communicating the air supplied from the air pump to the buttocks washing water channel and the bidet washing water channel;
With
The waterway change-over valve is the bottom wash water passage, it can be simultaneously Rohm and the discarded water waterway one and the bidet washing water passage,
The air switching valve is a toilet device that is open to the buttocks washing channel when not energized .

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