JPH02213533A - Local washing device - Google Patents

Abstract

PURPOSE:To accurately perform a local washing comfortable to each user by adjusting the mixing ratio of air bubbles through the adjustment of output of an air pump, and having a control circuit which starts the pump in a state of high output unlike a state of adjusting output. CONSTITUTION:A control circuit consisting of microcomputers is connected with a water pump 3, an air pump 4 and a solenoid valve 6 respectively through a pump driving circuit 11, an air pump driving circuit 12 and a solenoid control circuit 13. In addition, an operation switch 14, a seat temperature detecting circuit 15 and a hot water detecting circuit 16 for detecting the temperature of water in a hot water tank 2. Strength level is changed over by a strength switch to let a control circuit 10 adjust the output of an air pump 3, and change is made to occur in the mixing amount of air to washing water, discharge amount of which is said to be constant irrespective of the strength level. The users can, therefore, obtain stimulation level to their taste by adjusting the air mixing ratio through strength adjustment.

Description

[Detailed description of the invention] [Industrial application field]

TECHNICAL FIELD The present invention relates to a private parts cleaning device for cleaning the anal area after defecating, or cleaning the female private parts during errands or during menstruation.

[Conventional technology]

In a private part cleaning device, private parts are cleaned by jetting warm water from a nozzle and hitting the private parts.

[Problem to be solved by the invention]

However, since conventional products eject a steady stream of cleaning water, the user does not feel a pleasant stimulation, and the strength of the jet of cleaning water is too high. For some people, it can be painful or something they don't have enough of. Furthermore, the temperature of the washing water may be too hot or too lukewarm depending on the user, and even if it is possible to adjust the temperature to suit the user's preference, the user may lower the set temperature if they prefer a lower temperature. When washing water is hot, it is difficult to cool down, so you may feel hot. The present invention has been devised in view of these points, and its purpose is to provide a private part cleaning device that can accurately provide comfortable private part cleaning tailored to each user.

[Means to solve the problem]

The private parts cleaning device according to the present invention is equipped with a nozzle that sprays cleansing water toward the private parts, and an air pump that mixes air into the cleansing water to contain air bubbles. The first feature is that it is equipped with a control circuit that adjusts the air bubble mixing ratio by adjusting the output of the air pump, and starts the air pump in a high output state that is different from the output adjustment state. A nozzle that injects cleaning water toward the nozzle, a hot water tank that supplies cleaning water to this nozzle, a pump that pressurizes and sends out the cleaning water, a pressure sensor that detects the pressure of the cleaning water, and this pressure sensor. The second feature is that the pump is equipped with a control circuit that adjusts the output of the pump according to the output of the pump. A third feature of the device is that the pump sends out washing water with varying strength, and further includes a nozzle that sprays washing water toward the private parts. The fourth feature is that the nozzle is provided with a hot water tank for supplying cleaning water to the nozzle, a means for adjusting the temperature of the cleaning water, and a cooling means for cooling the cleaning water sent from the hot water tank to the nozzle. have. According to the first feature of the present invention, by changing the mixing ratio of cleaning water and air, it is possible to adjust the level of excess air bubbles contained in the cleaning water, and
The air pump starts smoothly because it is activated at high output regardless of the output adjustment level.According to the second feature, the pump operation is feedback-controlled using a pressure sensor. According to the third feature, it is possible to reliably send out washing water at the required pressure, and according to the third feature, non-monotonous washing can be performed by changing the strength of the washing water, and further, according to the fourth feature, When adjusting the temperature of the washing water, the presence of the cooling means makes it possible to reliably lower the temperature of the washing water. <Embodiment> The present invention will be described below based on the illustrated embodiment. As shown in FIGS. Equipped with a freely adjustable toilet seat 80 and toilet seat cover 8, the existing Il
! It is configured so that it can be installed in place of the toilet seat cover and toilet seat in a hanging type toilet. As shown in FIG. 3, the cleaning device main body 1 includes a hot water tank 2 with a built-in heating means, a cleaning water pump 3, an air pump 4, and an anal cleaning nozzle 51 that spouts cleaning water. The air pump 4 is arranged between the bidet nozzle 52, the solenoid valve 6, the hot water tank 2 and the solenoid valve 6, and is used to supply wash water to the nozzles 51 and 52 by the pump 3.
An aspirator 7 is provided as an air mixing means for mixing air from the air. The electromagnetic valve 6 is for selectively sending cleaning water mixed with air in the aspirator 7 to both the nozzles 51 and 52, and as shown in FIG. Valve 6 which is exclusively opened and closed by
3.64. As shown in FIG. 5, the aspirator 7, which is an air mixing means, is provided with a nozzle portion 73 with a narrowed cross-sectional area in a linear flow path between the inflow lower 1 and the outflow lower 2 for washing water. At the same time, the air inflow lower 4 is communicated with the nozzle portion 73, and the reduced pressure generated when the cleaning water passes through the nozzle portion 73 causes air to be sucked in and mixed into the cleaning water. This allows the use of an air pump 4 with a low output. In the figure, 75 is a check valve that prevents cleaning water from entering the air inflow lower 4 side. The circuit diagram shown in FIG. 6 is a control circuit 10 constructed by a microcomputer, and the pump 3, air pump 4, or solenoid valve 6 is connected to a pump 1 drive circuit 11 and an air pump drive circuit 12, respectively. In addition to being connected via an electromagnetic control circuit 13, an operation switch 14,
A toilet seat temperature detection circuit 15 and a hot water detection circuit 16 for detecting the water temperature in the hot water tank 2 are connected. As shown in FIG. 14, the above-mentioned operation switch 14 is
A switch 14a for selecting “Butt”, a switch 14b for selecting “Bidet Jl!”, and strength selection switches 14c, 14d.
It consists of a stop switch 14g, and a stop switch 14g.
If the "butt" switch 14a is pressed, cleaning water is jetted out from the nozzle 51, and if the "bidet" switch 14b is pressed, cleaning water is jetted out from the nozzle 52. Then, when the stop switch 14e is pressed, the nozzle 5
1. Supply of wash water to 52 is stopped. Note that these nozzles 51 and 52 are extended by the pressure of the supplied cleaning water against the bias of a built-in return spring, and moved to a predetermined position. Here, if the strength level is switched by the strength switches 14c and 14d, the control circuit 10 performs the output MII of the air pump 3, and as shown in FIG. 7(a), a constant amount of water is discharged regardless of the strength level. When the setting is set to 0, the amount of air mixed is increased, and when it is set to weak, the amount of air mixed is decreased. When the air mixing ratio is adjusted in this way, the user can:
As shown in Figure 12, the strength of the cleansing shower in which cleansing water containing air bubbles is applied to the private parts is felt as a function of the amount of water spouted, but the sensation of irritation is felt as a function of the amount of air bubbles. . That is, the degree of change in stimulation (AC component) changes depending on the amount of bubbles, and when this degree of change is large, that is, when the amount of bubbles is large, the user feels that the stimulation is strong. Therefore, by adjusting the air mixing ratio by adjusting the intensity, the user can obtain the desired stimulation level. Note that it is appropriate to adjust the mixing ratio of air within the range of 0 to 40% by volume. When adjusting the strength of the pump, the output of the pump 3 may be adjusted to 1ni11, so that when it is weak, the amount of water discharged is reduced, and when it is strong, the amount of water discharged is increased. Figures 8 and 13 show this case. . Furthermore, as shown in FIG. 15, switches 14f and 14g for increasing and decreasing the amount of water spouted are added to the switch 14, so that the amount of water spouted and the ratio of air to be mixed can be adjusted separately. In this case,
It is possible to obtain a state in which the amount of water discharged is small and the feeling of stimulation is large. 9 and 10 show an example of the air pump drive circuit 12, in which the drive pulse output from the control circuit 10 turns on and off the transistor Q1 via the resistor R1, and the motor M in the air pump 4 is turned on and off via the resistor R1. , the control circuit 10 controls the rotational speed of the motor M according to the ON time of the transistor Q1, and adjusts the amount of air mixed into the cleaning water. That is, as shown in FIG. 10(a), when the drive pulse width is reduced, the rotation speed of the motor M decreases and the amount of air mixed decreases, and as shown in FIG. 10(e), the drive pulse width decreases. When the width is increased, the number of revolutions of the motor M4 increases and the amount of air mixed also increases. CI in Figure 9 is a noise prevention capacitor, D,
is a diode for absorbing back electromotive force. By the way, when the amount of air to be mixed is small, the rotation speed of the motor M of the air pump 4 is reduced, and since the drive pulse width at this time is small as mentioned above, the motor M at the time of startup is There may be a case of energy shortage. For this purpose, when starting the air pump 4, as shown in FIG. 11, the transistor Q1 is turned on continuously for the time required for the motor M to start rotating, and then A driving pulse with a width corresponding to the ratio is sent. As shown in FIG. 16, the driving pulse output from the control circuit 10 is integrated by the integrating circuit 19a and converted into a DC voltage, and the differentiating circuit 19b generates a trigger pulse. By applying a trigger and operating the relay drive circuit 19d for a predetermined period of time to turn on the relay contact Ry, the applied voltage (■) in a steady state is applied. It is also possible to apply a higher voltage VDM to the motor M via the diode D only at the time of starting. In this case as well, the air pump 4 can be operated reliably. Further, the pump 3 is also driven as follows in order to adjust the amount of water discharged. That is, as shown in FIGS. 20 and 21, a drive pulse is connected from the pulse generation circuit in the control circuit 10 to the base of the transistor Q2 every cycle T via the resistor R5, and when the drive pulse is on, the transistor Q2 is connected to the base of the transistor Q2. When turning on the motor M3 for the pump 3 and causing it to rotate by passing a drive current, the width of the drive pulse (time t
), duty control is performed to change the rotational speed of the motor Ma, thereby making it possible to adjust the amount of water discharged as shown in FIG. 18. Further, as shown in FIG. 19, the nozzle 51 includes a cylinder 53, a pipe-shaped slider 54 which is slidable with respect to the cylinder 53 and has a spout 55 at its tip, and the slider 54 is connected to the cylinder 53. When the cleaning water is spouted, the pressure of the cleaning water flowing into the cylinder 53 first causes the slider 54 to protrude from the cylinder 53. Since the cleaning water is spouted from the spout 55 after the nozzle 51 is in the extended state shown in the figure, it becomes difficult for the nozzle 51 to expand when the amount of water spouted is set to be low (low pressure). At the start of cleaning, as shown in FIG. 22, the motor M is operated for the time 11 required for the slider 54 of the nozzle 51 to protrude and reach the cleaning water spouting position, regardless of the adjustment state of the water spouting amount. The motor M3 is driven at a 100% duty as shown in FIG. 20(d), and then the motor M3 is driven at a duty ratio according to the amount of water spouted (in this case, the intensity is adjusted in three stages). However, even if the pump 3 is driven at a certain duty ratio, due to variations in the rotation speed of the pump 3 or changes over time, for example, the rotation speed of the pump 3 will increase and the internal pressure in the nozzle 51 will rise, causing the desired strength to increase. The cleaning water may become too strong. There is not much of a problem if it becomes weak, but if it becomes too strong it is a big problem for users with hemorrhoids. For this purpose, as shown in FIG. 17, a pressure sensor 18 is provided and connected to the control circuit 10 via a pressure detection circuit 17 so that the set level and the actual level are the same. This makes it possible to provide feedback on the pressure of the cleaning water. As shown in FIG. 19, the pressure sensor 18 is installed in the cylinder 53 of the nozzle 51 (and nozzle 52).
The inside is preferable. FIG. 23 is a flowchart for discharging washing water when this pressure sensor 18 is used. If the "butt" switch 14a or the "bidet" switch 14b is pressed now, the solenoid valve 6 will Valve according to 63.64
Open and rotate pump 3 at full speed for the required time. After this time has elapsed, the time t according to the strength setting is
The drive pulse is sent out to start driving the motor M, and at the same time, it is checked whether the internal pressure inside the nozzle 51 (nozzle 52) is at the pressure value PA corresponding to the strength setting, and if the internal pressure is low, the drive pulse is started. The on-time t is increased, and if the internal pressure is high, the on-time t of the drive pulse is shortened, the discharge pressure of the cleaning water is set to the set pressure, and the stop switch 14e is set.
Pump 3 is stopped when is pressed. Furthermore, when the strength setting is changed during cleaning, the set pressure is reset according to the changed strength value and the same control is performed. Further, the portion indicated by A in FIG. 23, that is, the block for determining whether or not the time t required for the nozzle 51 to expand has elapsed may be replaced with a pressure determination block as shown in FIG. In this case, the nozzle 51 always finishes extending, regardless of variations in the time required for extension due to variations in friction between the cylinder 53 and slider 54 in the nozzle 51, variations in the strength of the return spring 56, etc. At this point, the jet of cleaning water can be started at the set pressure. The flow shown in FIG. 25 is indicated by B in FIG. 23,
In other words, the time ahead of the drive pulse is the required time t1. . If we insert a flow that stops pump 3 when it exceeds
If the piping from the hot water tank 2 to the nozzle 51 freezes in cold weather, the pump 3 will immediately stop, thereby preventing the pump 3 from failing due to continued idle operation. Furthermore, as shown in FIG. 26, at the point indicated by C in FIG. 23, the detected pressure is equal to the required pressure P11. If a flow is inserted to stop the pump 3 when the temperature exceeds the limit, foreign matter may adhere to the tip of the nozzle 51, causing an abnormal increase in pressure like when the water remaining at the tip of the nozzle 51 freezes. This will prevent damage to the product. Furthermore, when the pump 3 is stopped, the slider 54 in the nozzle 51 moves back due to the bias of the return spring 56 due to the decrease in internal pressure. In addition to being different depending on the setting, the solenoid valve 6 may close before the nozzle 51 returns to its original contracted state due to variations in the frictional resistance between the cylinder 53 and the slider 54. ,
As a result, the nozzle 51 may not return to its original state. To prevent this, when stopping the pump 3 shown by D in FIG. 23, when the pressure decreases slowly and does not reach the required value, as shown in FIG. All you have to do is lower the internal pressure rapidly. When jetting out cleaning water, instead of continuously spouting out cleaning water in a state corresponding to a certain strength level when the strength level is set, the pump 3 is turned on and off as shown in Figure 28. By repeating this, the strength can be changed within a required range, or by turning the pump 3 on and off and periodically changing the width of the drive pulse of the pump 3, the strength can be changed. Alternatively, as shown in FIG. 31, a gear pump may be used as the pump 3, and the strength changes may be caused by utilizing the pulsation of the discharge pressure shown in FIG. 30 or 32, which is a characteristic of these gear pumps. Of course, it is necessary to ensure that the weak level in this strength change does not become smaller than the maximum spring force of the return spring 56. When such a strength change is made, a good cleaning effect can be obtained due to high water pressure, and at the same time, since the average water pressure is slightly lower, it is possible to perform local cleaning with a soft feeling. Furthermore, as described above, in this type of private part washing device, the washing water is hot water, and the temperature of the hot water shown in FIGS. As shown in FIG. 2, when adding the temperature setting circuit TS, the following problems arise. That is, since temperature adjustment by the temperature setting circuit TS is normally performed by adjusting the temperature of the heater in the hot water tank 2, it is possible to quickly adjust the temperature to raise it, but it is difficult to adjust the temperature to lower it. There is no choice but to wait for the water temperature to drop naturally, and even if users who prefer lukewarm temperatures set the temperature setting circuit TS low, hot washing water will gush out immediately after changing the setting. You end up doing it. Figure 35 and the following diagrams are taken in consideration of this point.
In the system shown in FIG. 35, a valve 65 is added to the solenoid valve 6, and a drain pipe 59 that opens inside the toilet bowl is connected to the valve 65, and the water temperature in the hot water tank 2 detected by the hot water detection circuit 16 is When a lower temperature is set in the temperature setting circuit TS, by opening the valve 65 and operating the pump 3, the hot wash water in the hot water tank 2 is drained into the drain pipe 59.
At the same time as water is drained from the tank, water is supplied to the hot water tank 2 to quickly lower the water temperature in the hot water tank 2. The operating time of the pump 3 is determined in advance based on the difference between the set temperature and the actual water temperature. As shown in FIGS. 36 and 37, a safety valve 81 may be provided on the top surface of the hot water tank 2 so that water can be drained through the safety valve 81. If the pump 3 is operated for a predetermined time based on the difference between the actual water temperature and the water temperature, the water pressure in the hot water tank 2 will increase and the safety valve 81 will open, which will be approximately equal to the amount of water supplied. Safety valve 81
The water is drained from the tank to the drain pipe 59, and as a result, the hot water tank 2
The water temperature inside will quickly drop to the set temperature. As shown in FIG. 37, the safety valve 81 normally remains closed by having a valve body 83 biased by a spring 82 in contact with a rubber plate 84 placed on a stopper 85. When the pressure inside the tank 2 increases, the valve body 83 rises against the spring 82 and opens. As shown in FIG. 38, even if the drain pipe 59 is not provided, if the pump 3 can be operated at low speed, the hot washing water in the hot water tank 2 can be discharged from the nozzle 51 or the nozzle 52. can. In addition, pump 3 at this time
Needless to say, the operating speed of the nozzles 51 and 52 should be set so that the nozzles 51 and 52 do not extend and the washing water does not spray out vigorously. Furthermore, as shown in FIG. 39, the pump 3 and hot water tank 2
A solenoid valve 6' having valves 67 and 68 is disposed between the pump 3 and the solenoid valve 2 through the valve 67, and a mixing faucet 7 disposed between the hot water tank 2 and the solenoid valve 6. A valve 68 may be connected to the valve 68 to lower the temperature of the washing water by mixing hot water and water at the mixer tap 7'.The mixer tap 7' is formed as a Y-shaped pipe, leading to The temperature of the mixed cleaning water can be set by the ratio of the inner diameters of the two pipes.Also, as shown in Fig. 40, the pipe from the hot water tank 2 to the solenoid valve 6 is connected to a Veltier element. It may be installed on a cooling element 87 via a copper plate 86, and the temperature of the washing water may be lowered by cooling by the cooling element 87.As shown in Fig. 41, a high temperature hot water tank 2a and a low temperature hot water Two types of tanks 2b may be installed, and the hot water tanks 2a and 2b used may be switched by a solenoid valve 6° depending on the set temperature.

【Effect of the invention】

As described above, in the present invention, by changing the mixing ratio of cleaning water and air, it is possible to adjust the stimulation level caused by air bubbles contained in the cleaning water, and it is possible to perform comfortable local cleaning. Since the air pump starts at high output regardless of the output adjustment level, the air pump starts smoothly even when the air pump output is lowered to reduce the mixing ratio of air bubbles. According to the second feature, since the operation of the pump is feedback-controlled using a pressure sensor, it is possible to reliably send out cleaning water at the required pressure, and the strength of the cleaning water can be adjusted to the level set by the user. Furthermore, according to the third feature, non-monotonous washing can be performed by changing the strength of the washing water, and the fourth feature Ba,
When adjusting the temperature of the washing water, the existence of a cooling means makes it possible to reliably lower the temperature of the washing water. Things will disappear.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is an exploded perspective view of the same, Fig. 4 is a sectional view of the solenoid valve of the above, and Fig. 5 is a sectional view of the same as the above. Cross-sectional view of the aspirator, No. 6
The figure is a block circuit diagram of the same as above, Figures 7 (a) and (b) are explanatory diagrams showing the correlation between water discharge amount, air inflow volume, and intensity adjustment as above, and explanatory diagrams of stimulation degree, and Figures 8 (a) (b) ) is an explanatory diagram showing the correlation between the amount of water spouted, the amount of air flow, and the intensity adjustment in other embodiments, and an explanatory diagram of the stimulation degree, Figure 9 is a drive circuit diagram of the air pump, and Figure 1O is a diagram of the drive pulse of the air pump. An explanatory diagram, Fig. 11 is an explanatory diagram of the drive pulse when starting the air pump, Figs. 12 and 13 are explanatory diagrams showing the correlation between the amount of air and the degree of stimulation, and Fig. 14 is a front view of the operation switch. Figure 15 is a front view of another operation switch, Figure 16 is a circuit diagram of another drive circuit for the air pump, Figure 17 is a block circuit diagram of another embodiment, and Figures 18 (a) and (b) are the same as above. Figure 19 is a cross-sectional view of the nozzle, Figure 20 is an illustration of the pump drive pulse, Figure 21 is the pump. driving circuit diagram,
Fig. 22 is an explanatory diagram showing the operation status of the pump, Fig. 23 is a flowchart of the same as above, Figs. 24 to 27 are partial flowcharts of other embodiments, and Fig. 28 is a washing water of another embodiment. Pressure time chart, Figures 29 and 30 are a cross-sectional view of an example of the same pump and an explanation of pressure changes, Figures 31 and 32 are a cross-sectional view of another example of the same pump and an explanation of pressure changes. 33 is a block circuit diagram of still another embodiment, and FIG. 34 is a front view of the temperature control section same as above.
Fig. 35 is an exploded perspective view of the same as above, Fig. 36 is an exploded perspective view of another example of the same as above, Fig. 37 is a sectional view of the safety valve as above, Fig. 38
The figure is an exploded perspective view of yet another example of the same as the above, Figure 39 is an exploded perspective view of another example of the same as the above, Figure 40 is an exploded perspective view of yet another example of the same as the above, and Figure 41 is an exploded perspective view of another example of the same as the above. It is an exploded perspective view,
2 is a hot water tank, 3 is a pump, 4 is an air pump, 6 is a solenoid valve, and 5152 is a nozzle. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 2... Hot water tank 3... Pump 4... Air pump Figure 2 Figure 4 Figure 5 Figure 8 (b) Low focus Figure 6 (b) Zu5 Izuo Figure 12 Figure 14 Figure 16 Figure 17 Old figure CG) One + B! frfl Fig. 24m Fig. 25 Fig. 26 Fig. 27 Fig. 33 Fig. 35 Fig. 36 Fig. 39

Claims (4)

[Claims] (1) A private parts cleaning device equipped with a nozzle that sprays cleaning water toward the private parts and an air pump that mixes air into the cleaning water to contain air bubbles, and the output of the air pump is adjusted. A private parts cleaning device characterized by comprising a control circuit that adjusts a mixing ratio of air bubbles and starts an air pump in a high output state different from an output adjustment state. (2) It is equipped with a nozzle that injects cleansing water toward private parts, a hot water tank that supplies cleansing water to this nozzle, a pump that pressurizes and sends out the cleansing water, and a pressure sensor that detects the pressure of the cleansing water. , and a control circuit that adjusts the output of the pump according to the output of the pressure sensor. (3) A private parts cleaning device equipped with a nozzle that sprays cleansing water toward the private parts and a pump that pressurizes the nozzle and sends out the cleansing water, and the pump sends out the cleansing water with varying strength. A private parts cleaning device characterized by: (4) Equipped with a nozzle that sprays cleansing water toward private parts, a hot water tank that supplies cleansing water to this nozzle, and means for adjusting the temperature of the cleansing water, and cooling the cleansing water that is sent from the hot water tank to the nozzle. A private parts cleaning device characterized by being equipped with a cooling means.