JPH0426544Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] This invention relates to an improvement of a private parts cleaning device for a seated toilet that cleans the private parts and anus after defecating.

[Prior art]

Conventionally, as shown in FIGS. 6 and 7, a private parts cleaning device has a storage box 2 equipped with a cleaning function installed above the rear part of a toilet bowl 1.
The base of the toilet seat 3 is rotatably attached to the storage box 2, and inside the storage box 2 are a solenoid valve 5 connected to a water supply source (not shown) via a water supply pipe 4, a water supply amount adjustment valve 6, and a water supply amount adjustment valve. A heating device 8 connected to the valve 6 via a water pipe 7; a cleaning nozzle 10 connected to the heating device 8 via a water discharge pipe 9 and protruding from the storage box 2 into the toilet bowl 1 below the toilet seat 3; The temperature of the cleaning water spouted from the cleaning nozzle 10 is adjusted to about 38 to 42 degrees Celsius by increasing or decreasing the current flowing to the heater 12 based on the signal from the temperature sensor 11 provided in the device 8 for detecting the temperature of hot water.
It has a built-in electronic control unit 14 that controls the heating device 8 and the electromagnetic valve 5 when abnormal overheating of the heater 12 is detected by the temperature regulator 13 attached to the heating device 8. It is configured. In the figure, reference numeral 15 indicates a water amount adjustment knob of the water supply amount adjustment valve 6.

However, in the private part cleaning device described above, the operation start temperature of the temperature regulator 13 is set slightly higher than that of the temperature sensor 11 (approximately 10° C. higher).
That is, the temperature of the cleaning water is determined by the temperature sensor 11 to be approximately 38
It is set so that the user can select and use hot water at any temperature of their choice within the range of ~42°C, but if the temperature sensor 11 breaks down, temperature control will no longer be possible and the temperature regulator 13 will disturb the cleaning water. Warmed to operating temperature. However, as described above, the temperature regulator 13 has a higher operation start temperature than the set temperature of the temperature sensor 11, and has a slow response.
Since it is difficult to insert the temperature sensitive part into the water, and most of it is often attached to the surface of the heating device 8, fairly high temperature cleaning water is spouted from the cleaning nozzle 10, resulting in burns to the user. There was a risk of this happening. Therefore, in consideration of user safety, the temperature at which the temperature controller 13 starts operating is normally set at the temperature sensor 1.
It is close to that of 1. However, temperature controller 1
If you lower the set temperature in step 3, for example, during a power outage or while traveling, turn off the power to the private parts cleaning device,
When the power is turned on again during use, if the temperature of the cleaning water has fallen below the temperature that cannot be adjusted by the temperature sensor 11 (approx. Warm to.
At this time, there is no problem if the cleaning water is flowing through the heating device 8, but if it remains, the cleaning water on the top surface inside the heating device 8 is heated first, and the temperature sensor 11 detects the water temperature. The temperature regulator 13 operates beforehand to cut off the power to the heating device 8, and thereafter the washing water is no longer heated. In this case, the temperature regulator 13 does not return automatically for safety reasons, and after disassembling the private parts cleaning device and investigating the cause of why the temperature regulator 13 was activated, the temperature regulator 13 is manually reset each time. Since work was being done to restore the device 13 to its original state, bringing the set temperature of the temperature regulator 13 closer to that of the temperature sensor 11 may cause the temperature regulator 13 to operate frequently even if there is no particular abnormality with the device itself. This was not a preferable method considering the work required to restore the temperature regulator 13 to its original state.

[Purpose of invention]

This invention eliminates the above-mentioned drawbacks, and when a malfunction occurs in the temperature sensor that detects the temperature of hot water or the electronic control unit that controls the hot water to an appropriate temperature, the hot water will reach a high temperature before the temperature controller operates. An object of the present invention is to provide an improved private parts cleaning device having a safety valve device that prevents a hot water user from being burned by the hot water spewing out.

[Summary of the idea]

This idea uses a coil spring made of a shape memory alloy between the heating device that heats the washing water and the washing nozzle that spouts out the heated water, and uses the deformation force of this coil spring to connect the valve opening. When spouting water at an appropriate temperature by holding the ball valve body between a ball valve body that opens and closes and the coil spring, the ball valve body is opened at the valve opening in balance with the deformation force of the coil spring. A safety valve device equipped with a compression spring made of a normal metal member that is biased in the direction is installed, and when the hot water supplied from the heating device to the cleaning nozzle reaches a predetermined temperature or higher, the temperature of the coil spring is It is characterized in that the valve opening is closed by a ball valve body using the deformation force characteristics to prevent high-temperature water from spouting out from the cleaning nozzle.

[Example of idea]

Examples of this invention will be described below with reference to FIGS. 1 to 4. In addition, in FIGS. 1 to 4,
The same reference numerals as in FIGS. 6 and 7 indicate the same parts.

The difference between the private part cleaning device of this invention and the conventional private part cleaning device is that, as shown in FIG. 1, a safety valve device 20 is connected in the piping between the heating device 8 and the cleaning nozzle 10. . The structure of this safety valve device 20 will be explained with reference to FIGS. 2 and 4.

21 has a large-diameter bulging part 23 that accommodates the ball valve body 22 in the center, and small-diameter cylindrical parts 24 on both sides thereof.
One cylindrical portion 24 of this valve body 21 is connected to the water discharge pipe 9, and the other cylindrical portion 24' is connected to the cleaning nozzle 10 in a watertight structure. Reference numeral 25 denotes a coil spring formed of a shape memory alloy housed in one cylindrical portion 24 of the valve body 21, and this coil spring 25 is provided so as to have a temperature-dependent deformation force characteristic as shown in FIG. ing. In other words, in this embodiment, the shape that expands when hot water is high is memorized, and for example, when the hot water temperature is approximately 38 to 42 degrees Celsius, it hardly deforms, but when the water temperature reaches approximately 43 to 45 degrees Celsius, it will not deform (elongate or expand). When the water temperature exceeds approximately 45℃, the state after deformation (after extension) is maintained, and when the temperature drops to approximately 38℃, the state before deformation (reduction/direction shown in arrow B) is maintained. direction).
A steel compression spring 26 is housed in the other cylindrical portion 24' of the valve body 21.
The deformation force 6 is balanced with the deformation force in the state before the coil spring 25 is deformed. Therefore, water at an appropriate temperature (water temperature of about 38 to 42
℃) is flowing, the deforming forces of both springs 25 and 26 are balanced, so the ball valve body 22 accommodated in the large diameter bulge 23 is in the center of the large diameter bulge 23. There is no way to prevent hot water from flowing.

In addition, in the figure, 27 is the other cylindrical part 2 of the valve body 21.
The valve port 28 formed at 4' is a valve guide piece protruding from the wall surface of the large-diameter bulging part 23, and guides the large-diameter bulging part 23 so that the ball valve body 22 can move smoothly.

Next, the operation will be explained. When the cleaning water pumped from the water supply source is heated by the heating device 8 and the hot water flowing into the valve body 21 from the water discharge pipe 9 has a temperature within the range suitable for use (approximately 38 to 42 degrees Celsius), ,
Since the deformation stresses of the coil spring 25 made of a shape memory alloy and the normal compression spring 26 are in a balanced state,
Since the ball valve body 22 is held at the center of the large-diameter bulging portion 23 of the valve body 21 without blocking the valve port 27, hot water is supplied to the cleaning nozzle 10, and the hot water is supplied to the user's anus from its spout 10a. It can be effectively used for cleaning by ejecting it towards objects such as objects.

Furthermore, when the temperature of the hot water reaches a temperature that makes it difficult to use (approximately 45°C or higher) due to a failure of the temperature sensor 11 or the electronic control unit 14, the deforming force of the coil spring 25 gradually exceeds that of the compression spring 26. When the temperature of the hot water reaches approximately 45°C, the deformation force of the coil spring 25 made of shape memory alloy becomes larger than that of the normal compression spring 2.
6, the ball valve body 22 is pushed to the right in FIG. 2, and the valve port 27 of the valve body 21 is closed by the ball valve body 22, as shown in FIG. High temperature water unsuitable for use is completely prevented from flowing into the cleaning nozzle 10. Therefore, the user does not feel any discomfort due to the spouting of hot water that is not suitable for use while using the hot water, and can prevent accidents caused by the spouting of hot water.

[Effect of idea]

Since this invention is configured as explained above, it has the following effects.

This idea makes it impossible to use hot water in the middle of the piping between the heating device that heats the cleaning water to a temperature suitable for use and the cleaning nozzle that spouts the warmed water toward private parts. A coil spring made of a shape memory alloy whose shape to expand at high temperatures is memorized in advance, and a compression spring made of a normal metal member, and the valve opening of the hot water flow path is opened and closed by being held between the two spring members. The safety valve device, which includes a ball valve body, is connected to the piping, so when unusable high-temperature water flows into the safety valve device from the heating device due to a failure of the electronic control unit, the shape memory valve device is immediately activated. By expanding the coil spring made of alloy and pushing the ball valve body toward the valve port to close the valve port, that is,
Since the safety valve device does not operate and the high-temperature water is not spouted out from the cleaning nozzle, accidents caused by sudden spouting of high-temperature water during private part cleaning can be reliably prevented, and this type of private part cleaning is completely prevented. The device can be used safely.

Further, the safety valve device has a hollow linear shape having a large-diameter bulge in the center that movably accommodates a ball valve body between the water discharge pipe connected to the heating device and the cleaning nozzle protruding into the toilet bowl. The valve body is connected to the piping, and the cylindrical part connected to the water discharge pipe side of the valve body accommodates a coil spring made of a shape memory alloy that has a shape that is memorized to expand at high temperatures when hot water cannot be used. In addition, if hot water can be used for the cylindrical part connected to the cleaning nozzle side,
It is constructed by housing a compression spring made of a normal metal member that balances the deformation force of the coil spring and urges the ball valve body to the center of the large-diameter bulge to open the valve port of the valve body. Since the ball valve body is heated when the hot water is at a usable temperature,
Since the spring pressures of the coil spring and the compression spring are balanced, the valve opening can be opened well by being located at the center of the large diameter bulge of the valve body, allowing hot water at an appropriate temperature to be released. The fact that the safety valve device is formed in a straight line allows for smooth jetting from the cleaning nozzle, and both the coil spring and the compression spring are formed in a straight line by sandwiching the ball valve body. The safety valve device can be manufactured with a simple structure because it only needs to be accommodated and held in the small diameter cylindrical part of the main body so that it can expand and contract, and can be installed by effectively utilizing the narrow space between the heating device and the cleaning nozzle. Therefore, the private area cleaning device can be manufactured economically without increasing its size.

Furthermore, in this invention, a safety valve device equipped with a coil spring made of a shape memory alloy is installed close to the heating device, so that the hot water generated by the heating device is directly applied to the coil spring immediately after it is generated. This makes it possible to accurately sense the temperature, and in the unlikely event that hot water is generated at an unsuitable temperature, the ball valve element is activated to reliably prevent the hot water from spewing out from the cleaning nozzle. In addition, shape memory alloys can reliably eliminate the discomfort caused by the spout of hot water above a predetermined temperature or the harmful effects caused by the spout of high-temperature water. It has much better thermal response than bimetallic temperature controllers, so if a problem occurs in the hot water temperature control, high-temperature water will spray out and clean the area before the temperature controller is activated. In addition, it is possible to reliably solve the situation where a user suffers burns or the like due to boiling water.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view of the device for cleaning private parts according to the present invention, Fig. 2 is a vertical sectional view of the safety valve device used in the device of the present invention, and Fig. 3 is a longitudinal sectional view showing the operating state of the safety valve device. Figure 4 is a cross-sectional view taken along line X-X in Figure 2, Figure 5 is a temperature-deformation force characteristic diagram of a coil spring, Figure 6 is a partially cutaway plan view of a conventional private part cleaning device, and Figure 7 is FIG. 3 is a longitudinal cross-sectional view of the heating device. 21...Valve body, 22...Ball valve body, 24,
24'...Cylinder part, 25...Coil spring, 26...
compression spring.

Claims (1)

[Scope of utility model registration request] In a private parts cleaning device in which cleaning water supplied from a water supply source is heated to an appropriate temperature by a heating device 8, and the warm water is jetted from a spout 10a of a cleaning nozzle 10 to clean the private parts, the heating device 8 A safety valve device 20 is pipe-connected between the cleaning nozzle 10 and the cleaning nozzle 10, and the safety valve device 20 has a large-diameter bulge portion 23 that accommodates a ball valve body 22 in the center, and small-diameter cylindrical portions on both sides thereof. 24, 24' are integrally formed, and among these cylindrical parts 24, 24', one cylindrical part 24 is connected to the water discharge pipe 9 into which cleaning water flows, and the other cylindrical part 24' is connected to the large diameter bulging part. The ball valve body 22 has a valve port 27 on the side communicating with the valve body 21 and a valve body 21 connected to the cleaning nozzle 10 on the other side. A coil spring 25 made of a shape memory alloy housed in the cylindrical portion 24 of the valve body 21 and the ball valve body 22 maintain a balance with the deformation force of the coil spring 25 when the temperature of the hot water is at a usable temperature.
and a compression spring 26 made of a normal metal member housed in the other cylindrical portion 24' of the valve body 21 to urge the valve port 27 in the direction of opening. Local cleaning device.