JPS62141232A - Cold water removing device of hot water washing type toilet seat - 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] 【Technical field】

The present invention relates to a technology for preventing cold water from being discharged from a flushing nozzle in a warm-water flushing toilet seat directly connected to a water supply and discharging flushing water from the flushing nozzle using water pressure.

[Background technology 1] Conventional hot water bidet toilet seats detect the water temperature and turn on and off the heater for heating the hot water using a thermostat, so that the cold water is heated by the heater so that the user does not feel cold. However, even when the heater is turned on or off, the temperature of the washing water does not change instantaneously, so cold water may be discharged from the washing nozzle and splash onto the user's body, causing a feeling of coldness or discomfort. Ta. [Object of the Invention] The present invention has been made in view of the above-mentioned technical background, and its purpose is to prevent cold water below a predetermined temperature from being discharged from a cleaning nozzle using a simple structure. The goal is to ensure that it can be prevented.

[Disclosure of the invention]

The cold water removal device for a heated toilet seat according to the present invention has a jet nozzle 1 for discharging running water A to which water pressure is applied at high speed and an inlet port 2 for receiving running water A facing each other in a straight line with a space opening in between. If the water is at a suitable temperature, use a jet of running water.
, 21' Characteristics of the shape memory alloy that forcefully discharges the water from the jet nozzle 1 toward the inlet 2 and prevents the water discharged from the jet nozzle 1 from being injected into the inlet 2 when the water is cold. It is characterized by comprising a cold water removal mechanism 3 that utilizes the cold water removal mechanism 3. Therefore, when water at an appropriate temperature is supplied, the flowing water discharged from the jet nozzle 1 can be forcefully injected into the inlet 2 and ejected from the cleaning nozzle.On the other hand, when cold water is supplied, the water can be jetted out from the cleaning nozzle. The removal mechanism 3 can prevent the cold water discharged from the jet nozzle 1 from being injected into the inlet 2 and from being ejected from the cleaning/X' hole. Moreover, since the cold water removal mechanism 3 utilizes the characteristics of shape memory alloy, it has good responsiveness to temperature and can remove cold water reliably, and can have a simpler structure than a mechanism based on a mechanical structure. be. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 13 shows an example of a hot water washing toilet seat 4, which is of a two-nozzle type and has a washing/zipping nozzle 5 for anal washing and a washing nozzle 5 for a bidet. The cleaning nozzle 5 is rotated to the center of the toilet bowl 6 to discharge hot water for cleaning, and the following steps are taken to prevent cold water from being discharged from the cleaning nozzle 5. A cold water removal device is provided as described in . 1 and 2 show a first embodiment of a cold water removal device. The jet nozzle 1 is installed at the tip of the supply pipe 7, and its tip is narrowly constricted so that it can forcefully discharge running water.The supply pipe 7 has a built-in heater and thermostat to prevent water from flowing. Running water A (hot water) heated by a hot water heater that heats it to a constant temperature is supplied, and the supply pipe 7 is directly connected to water supply (city water), and the running water A is supplied using an electric pump or the like. It is designed to be pumped by water pressure without using it. The inlet 2 is opened at the base end of a swing arm 8 having a cleaning nozzle 5 at its tip. The jet nozzle 1 and the inlet 2 are opposed to each other in a straight line with an opening in the container 9, and a drain port 10 is opened in the lower surface of the container 9. The base of the jet nozzle 1 is a cold water removal mechanism 3
It is formed by a pipe 3a made of a shape memory alloy. That is, the shape memory alloy pipe 3& has a t-state temperature at the boundary between moderate temperature water and cold water (approximately 25°C), and bends downward at temperatures below the transformation temperature as shown in Figure 2. The tip of the jet nozzle 1 should be directed toward the drain port 10, and the tip of the jet nozzle 1 should be directed toward the inlet port 2, extending straight as shown in Figure 1 at temperatures above the transformation temperature. has been done. When water at an appropriate temperature is sent to the supply pipe 7, the shape memory alloy pipe 3a is warmed and instantly extends as shown in FIG.
Flowing water at an appropriate temperature is vigorously discharged from the jet nozzle 1 and is injected into the inlet 2 and then jetted from the cleaning nozzle 5. On the other hand, when cold water is sent to the supply pipe 7 or the supply of hot water is stopped, the pipe 3a made of shape memory alloy is cooled and instantly bends as shown in FIG. The flowing water that is bent in the NO direction and discharged from the jet nozzle 1 is drained from the drain port 10 to the outside (into the toilet bowl 6, etc.). 3 to 8 is a second embodiment of the present invention, in which a pressure reducing plate 3b made of a shape memory alloy and serving as a cold water removal mechanism 3 is provided in the base of the jet nozzle 1. That is, the pressure reducing plate 3b made of a shape memory alloy is a disc made of a shape memory alloy with a coil-shaped cut, and at a temperature below the transformation temperature (approximately 25°C), the pressure reducing plate 3b becomes as shown in FIG. It is closed in a flat plate shape, but when the temperature exceeds the transformation temperature, the central part is memorized as shown in Figure 8.
As shown in FIGS. 5 and 7, it is arranged in the jet nozzle 1 so as to obstruct the flow of water. However,
When water at an appropriate temperature is supplied, the pressure reducing plate 3b made of a shape memory alloy opens as shown in Fig. 7, allowing the flowing water to flow smoothly.
As shown in Fig. fJ3, flowing water is vigorously injected from the jet nozzle 1 to the inlet 2, and hot water is discharged from the cleaning nozzle 5. Conversely, when cold water is supplied or hot water supply is stopped, the pressure reducing plate 3b closes as shown in Fig. 5, and the flowing water is decelerated by the pressure reducing plate 3b and flows out from the jet nozzle 1 with force. It is not discharged, and instead of reaching the inlet 2, it is dropped into the drain 10 as shown in Figure t54. What is shown in Fig. ptS9 and Fig. 10 is the @3 embodiment of the present invention, in which a shielding plate 3c made of a shape memory alloy is disposed as a cold water removal fivI3 at the space opening between the jet nozzle 1 and the inlet 2. It is something. At temperatures above the transformation temperature, the shielding plate 3c made of a shape memory alloy becomes parallel to the flow direction of the water jet vigorously discharged from the jet nozzle 1 and does not act as a flow resistance, and at temperatures below the transformation temperature, it twists. It is stored in such a way that it receives the flowing water discharged from the jet nozzle 1. When water at an appropriate temperature is supplied, the flowing water discharged from the jet nozzle 1 is injected into the inlet 2 as shown in Fig. 9, but when cold water is supplied, the shielding plate 3c The drain port 10 is blocked by blocking the running water discharged from the drain port 10.
It was designed to be lowered to 111 and 12 is a fourth embodiment of the present invention, in which a bellows-shaped stein 3d made of a shape memory alloy is provided as a cold water removal mechanism 3 at the base of a jet nozzle 1. In other words, this stein) 3d shrinks and becomes shorter at temperatures below the transformation temperature, but this is strange! ! ! It is stored so that it will expand and become longer at temperatures higher than that temperature. However, if running water at an appropriate temperature is supplied,
3d extends and jet nozzle 1 and inlet 2 approach each other, and the flowing water discharged from jet nozzle 1 becomes PttJ11.
As shown in the figure, water is injected into the inlet 2, but when cold water is supplied, the water drain (3d) contracts and the jet nozzle 1 is far away from the inlet 2 (so that the flowing water discharged from the jet nozzle 1 The water does not reach the inlet 2 and is discharged from the drain port 10. [Effects of the Invention] As described above, the present invention has a jet nozzle that discharges flowing water to which water pressure is applied at high speed, an inlet that receives the flowing water, and an inlet that receives the flowing water. are opposed in a straight line across a space, and when the water is at a suitable temperature, the water is vigorously discharged from the jet nozzle toward the inlet, and when the water is cold, the water discharged from the jet nozzle is It is equipped with a cold water removal mechanism that utilizes the properties of a shape memory alloy that prevents water from being injected into the inlet, so when water at an appropriate temperature is supplied, the water discharged from the jet nozzle is injected forcefully into the inlet. On the other hand, when cold water is supplied, the cold water removal mechanism injects the cold water discharged from the jet nozzle into the inlet and prevents it from being jetted out from the cleaning nozzle. Yes. Moreover,
The cold water removal structure 11 utilizes the characteristics of shape memory alloys, so it has good responsiveness to temperature and can reliably remove cold water.It has a simpler structure than one using mechanical ellipsoids, and is less prone to wear. This has the effect of achieving the i lifespan without any problems. Furthermore, unlike those that use valves, perfect water sealing is not required, so the design and manufacture are simpler and the lifespan is longer. Furthermore, since a space is formed between the jet nozzle and the inlet, even if the pressure on the inlet side is higher than that on the jet nozzle side, the flowing water is discharged into the space and flows to the jet nozzle side (
There is no backflow to the water supply (water supply side), and sanitary requirements can be easily met.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams showing the ttS1 embodiment of the present invention and its operation, FIGS. 3 and 4 are explanatory diagrams showing the second embodiment of the present invention and its operation, and FIGS. Figure 6 is an explanatory diagram showing the cold water removal mechanism when supplying cold water as above, Figures 7 and 8
The figure is an explanatory diagram showing the cold water removal mechanism when supplying water at an appropriate temperature as above,
9 and 10 are explanatory diagrams showing the third embodiment of the present invention and its operation, FIGS. 11 and 12 are explanatory diagrams showing the fourth embodiment of the present invention and its operation, and FIG. 13 is an explanatory diagram showing the fourth embodiment of the present invention and its operation. It is an external perspective view showing an example of a hot water bidet toilet seat, and 1 is a jet nozzle, 2
3 is the inlet, 3 is the cold water removal mechanism, A is the flowing water, and the mouth is the space. Agent Patent Attorney Ishi 1) Ai 7Figure 1Figure 2Movie 0Figure 3ff4Figure 5Figure 6Figure 7Figure 9Figure 11Figure 13

Claims (1)

[Claims] (1) A jet nozzle that discharges running water under water pressure at high speed and an inlet that receives running water are opposed in a straight line across a space, and when the running water is at an appropriate temperature, the running water is directed from the jet nozzle to the inlet. It is characterized by being equipped with a cold water removal mechanism that utilizes the properties of a shape memory alloy to forcefully discharge the water toward the jet nozzle and prevent the water discharged from the jet nozzle from being injected into the inlet when the water is cold. Cold water removal device for hot water flush toilet seats.