JP2566318B2 - Local cleaning device - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a local cleaning device for cleaning the anus part after stool or cleaning a female part for personal use or sanitary use.

[Prior art]

As the local cleaning device, two types, a pump water supply type and a direct water supply type, are provided. The former is to take out the water in the low tank installed adjacent to the toilet bowl by the water supply pump and supply it to the local cleaning section, and the latter is to directly connect the water pipe and the local cleaning section. Compared to the pump water supply type, the direct water supply type has a neat appearance because it does not require a water supply hose to connect the low tank and the water supply pump, and the pump water supply type uses the water accumulated in the low tank. In contrast to the wash water, the direct water connection type has a clean image because the tap water is used as it is for the cleaning water, and therefore the direct water connection type tends to be preferred.

[Problems to be Solved by the Invention]

However, in the conventional direct water connection type, since the washing water jetting power depends on the tap water pressure, the washing water jetting force may fluctuate during jetting as the tap water pressure changes. The feeling of use is poor, and there are cases in which sufficient cleaning cannot be performed due to a decrease in tap water pressure. As shown in Fig. 2 (a), the range of adjustment of strength of cleaning power is narrow when the hydraulic pressure is low. It may become unadjustable or unadjustable. The present invention has been made in view of these points,
Although the purpose is to use tap water directly,
It is an object of the present invention to provide a local cleaning device in which the jetting force of washing water is stable without being affected by fluctuations in tap water pressure.

[Means for Solving the Problems]

Therefore, the present invention is a direct connection type local cleaning apparatus for directly supplying local cleaning water from a water pipe, in which a small-capacity open-type tank provided separately from a low tank for toilet bowl connection is connected to the water pipe and opened. It is characterized in that a water supply means for sending water in the formula tank to the local cleaning section is provided. <Effect> According to the present invention, although the local washing water is directly supplied from the water pipe, the washing water is once passed through the open tank to eliminate the influence of the tap water, and then the washing water is supplied to the local washing unit by the water supply means. Since the water is supplied, the jetting force of the wash water can be made stable. <Embodiment> The present invention will be described below based on the illustrated embodiment. As shown in FIGS. 3 to 5, this local cleaning device is a toilet seat 11 which is rotatable as a cleaning device main body 1. And a toilet seat cover (12) so that the toilet seat cover and the toilet seat in the existing sitting toilet can be replaced and installed. In the figure, 13 is an operation switch section. As shown in FIG. 1, the cleaning apparatus main body 1 is provided with an open tank 2, a water absorption pump 3, a warm water tank 4, and two cleaning nozzles 51, 52 as a cleaning water supply system. The open-type tank 2 is connected by a pipe 64 to a branch pipe 60 arranged in the middle of a water pipe 6 leading to a low tank 65 with a built-in float valve 66 for storing toilet flushing water. Check valve 61 and manual stop valve 62 on the side
And a drainage 63 are provided, and a throttle 23, an electromagnetic type, and a water shutoff valve 7 are provided on the open tank 2 side.
As the water supply pump 3, for example, a gear pump is operated,
The discharge pressure can be adjusted by duty driving. In FIG. 1, 28 is a connection port, 91 is a pipe connecting the open tank 2, the water supply pump 3, and the hot water tank 4, H ₁ is a hot water heater, and 92 is an electromagnetic valve provided in front of each cleaning nozzle 51, 52. It is a valve. A pair of solenoid valves 92,92 is a cleaning nozzle 5 for the buttocks.
It is selectively opened depending on the use of 1 and the washing nozzle 52 for the bidet. The open-type tank 2 is formed as an external unit in the local cleaning device 1 having the hot water tank 4 and the like built therein, and as shown in FIGS. 6 to 10, a tank main body 20 having an open upper surface, It consists of a lid 21 and a cover 22 that close the top opening of the tank body 20, and includes a coil 70 and a plunger 71.
A water shutoff valve 7 including a diaphragm valve 72 and a diaphragm valve 72 is incorporated in the lid 21, and a throttle 23 positioned between the connection port 28 and the water shutoff valve 7 is provided in the lid 23 as a small-diameter flow path. . In the open tank 2, when the water closing valve 7 is opened,
Water from the water pipe 6 flows through the connection port 28, the throttle 23, and the water shutoff valve 7 through the inflow port 24. As shown in FIG. 8, a pipe 29 may be connected to the inflow port 24 so that the water is provided at the bottom of the running water tank body 20. When the water flows into the tank body 20, it may pass through the throttle 23.
Considering that the maximum amount of water used in 1 is 1 / min, even if the water pressure is as low as 0.5 kgf / cm ² , it is set to be 1 / min or more. This is the inner diameter of the diaphragm 23 is 1.6 ~ 1.8
It can be obtained by setting mm. The throttle 23 may be on the rear side of the water shutoff valve 7. Further, the lid 23 is further provided with a pair of connection ports 25 and 26, and the connection port 25 is connected with an overflow pipe 90 whose tip opens in the toilet bowl, and as shown in FIG. The pipe 91 is connected to the connection port 26, the lower end of which is located near the bottom of the tank body 20. The inside of the open tank 2 is opened through the overflow pipe 90, and when the amount of water used for washing is less than the amount of water flowing in, the tank body
Since the water in 20 is drained into the toilet through the overflow pipe 90, no pressure is generated in the open tank 2. 201 in FIG. 9 is a drain plug for draining water in the tank body 20 when freezing is expected. The open tank 2 is hooked from the tank body 20.
202 and the protruding piece 203 are projected, and the hook 202 is attached to the local cleaning device 1
It is attached to the housing by being locked to the housing and by fixing the protruding piece 203 with a screw. FIG. 10 shows a block circuit diagram of this local cleaning apparatus 1. And water heater H ₄ in the hot water tank 4, the toilet seat 11
Toilet seat heater H ₃ , water absorption pump 3, solenoid valve 9
2, warm air motor M ₁ and hot air heater H ₅ for local drying after washing
Etc. is a control circuit C consisting of a microcomputer
Controlled by. Then, in this local cleaning device 1, when the user turns on the bottom cleaning switch or the cleaning switch in the operation switch 13, the water stop valve 7 is opened and tap water flows into the open tank 2 at the same time. The water supply pump 3 operates to feed the water in the open tank 2 to the warm water tank 4. As a result, the warm water in the warm water tank 4 which is full and kept at an appropriate temperature is pushed out and ejected from the selected cleaning nozzles 51, 52 through the electromagnetic valve 92 opened corresponding to the switch. At this time, when the amount of water flowing into the open tank 2 is larger than the amount of water used for cleaning, the surplus water is discharged from the overflow pipe 90 into the toilet as described above. Since the excess discharge water is clean water, it may be used for cleaning the cleaning nozzles 51 and 52. Next, when the user operates the stop switch, the control circuit C immediately stops the water supply pump 3 and then closes the electromagnetic valve 92 and the water shutoff valve 7 which have been opened. As is clear from the above description, this local cleaning device 1
Then, although tap water is directly used for washing water, the jetting force of washing water is affected by tap water pressure because the feed water pump 3 once obtains the required jetting force through the open tank 2. In addition, as shown in FIG. 2 (b), even when the water force of the washing water to be sprayed can be adjusted, the required adjustable range can be secured even when the water pressure is low. . By the way, there is a possibility that the toilet room has no special heating and the room temperature becomes 0 ° C. or less. In this case, the internal water of the local cleaning device 1 may freeze. When such freezing is expected, the water in the pipe 64 or the open tank 2 is drained in advance by the drain plug 67, the drain plug 201, etc. Failure to drain the water may result in freezing damage. For this reason, it is preferable that the open type tank ₂ is provided with a freeze prevention heater H ₂ . FIG. 12 shows an example of this case, in which an antifreezing heater H ₂ is adhered and fixed to the outer surface of the tank body 20. The antifreezing heater H ₂ is operated by a thermostat or the like to keep the water in the open tank 2 at a temperature at which it does not freeze. As shown in Fig. 13, the antifreezing heater H2 is installed in the warm water tank 4
When the hot water heater control circuit C ₂ and the hot water heater H ₁ are connected to the hot water heater H ₁ in parallel, and the freeze prevention heater H ₂ is also energized, the freeze prevention heater
It is not necessary to provide a dedicated control unit for H ₂ . As shown in FIG. 14, the toilet seat heater H ₃ may be connected in parallel, and the toilet seat heater control circuit C ₄ may also control the temperature of the antifreezing heater H ₂ . In this case, the anti-freezing heater H ₂
Are connected in parallel with the warm water heater H ₁ and the toilet seat heater H ₃ , but they may be connected in series. FIG. 15 shows an example in which the variable pressure adjusting unit 8 is attached to the lid 21 of the open type tank 2. The pressure adjusting unit 8 includes an inner plug 80 and a pressure adjusting spring 82 for urging the inner plug 80.
And a throat portion 81 whose opening area changes according to the axial movement of the inner plug 80, and is installed between the water shutoff valve 7 and the inflow port 24. If the water pressure becomes high, the inner plug 80 will be pushed against the pressure regulation 81 by the water pressure, so that the opening area of the throat portion 81 becomes small and the amount of water flowing into the tank body 20 is regulated. It On the contrary, when the water pressure is low, the inner force of the pressure adjusting spring 82 raises the inner plug 80 to increase the opening area of the throat portion 81, so that the flow rate into the tank body 2 increases. Even if the water pressure fluctuates, a substantially constant amount of water is allowed to flow into the open tank 2, and the amount discharged from the overflow pipe 90 can be suppressed to a small amount even at high water pressure. it can. FIG. 16 shows another example of the pressure adjusting unit 8, which includes an inner plug 80.
The lid 21 is provided with a cylindrical body in which the upper and lower parts can be slid vertically, and a long vertical inlet 24 is formed on the side surface of the cylindrical body, so that the water pressure and the pressure regulating spring can be adjusted.
By the inner stopper 80 that moves up and down so as to balance with 82,
The opening area of the inflow port 24 is changed. FIG. 17 shows still another example of the pressure adjusting unit 8,
The diaphragm 83 is installed on the inner plug 80, and the diaphragm 83 and the lid are attached.
A secondary pressure is generated between the throat part and the throat part where the secondary pressure and the procurement spring 82 are balanced.
The opening diameter of 81 is determined. Although the open type tank 2 is formed as an external unit in the above embodiment, it may be formed integrally with the hot water tank 2 as shown in FIG. 18 or FIG. In the figure, 45 is a thermistor, and 46 is a float switch. In this case, the water in the open tank 2 receives the heat of the hot water in the hot water tank 4 through the partition wall, so that the antifreezing heater H ₂
Even if you do not provide, will not freeze. The open / close control of the water shutoff valve 7 in the open tank 2 is the 19th
As shown in the figure, it may be performed by a float switch 206 arranged in the open tank 2. Since the water shutoff valve 7 can be closed when the open type tank is full of water, the water discharged from the overflow pipe 90 is practically eliminated, and water can be saved. However, when the water shutoff valve 7 is controlled by the float switch 206, the water shutoff valve 7 may repeatedly open and close due to a slight water level fluctuation in the open tank 2, and the life of the water shutoff valve 7 may become a problem. Therefore, as shown in FIG. 20, a delay circuit 207 is provided between the float switch 206 and the water shutoff valve control circuit 208.
The water shutoff valve 7 is opened so that the number of times the water shutoff valve 7 is turned on and off is reduced when a predetermined time has elapsed since the float switch 206 detected the water level drop. Since the delay time by the delay circuit 207 is set shorter than the time required for consuming the water in the open tank 2 when the jetting force of the wash water is set to the maximum, the open tank 2 The inside is never empty. Incidentally, when the water shutoff valve 7 of the open tank 2 is controlled by using the float switch 206, it becomes impossible to drain water for freeze prevention. This is because the water shutoff valve 7 remains open and the inside of the toilet room is flooded. In order to deal with this point, as shown in FIG. 21, the water shutoff valve 7 may be opened by the logical product of the drive signal of the water supply pump 3 and the water level lowering signal of the float switch 206. . Even if the float switch 206 detects a drop in water level, the water shutoff valve 7 will not open when the water supply pump 3 is not operating,
Do not flood the toilet room. In the figure, 210 is an integrating circuit, and 209 is an AND circuit. When the float switch 206 is not used, the number of output ports of the control circuit C can be reduced by opening the water shutoff valve 7 by the drive signal of the water supply pump 3 as shown in FIG. . Further, the integrating circuit 210 is for converting a pulse signal for driving the duty of the water supply pump 3 into a DC signal. Since the closing operation of 7 is delayed, the water shutoff valve 7 can be kept open even after the cleaning operation is completed, and there is no fear that the antifreezing heater H2 will empty the open-type tank 2 inside. It is possible to maintain a full state at all times.

【The invention's effect】

As described above, in the present invention, while the water accumulated in the low tank is a clean water direct connection type that does not serve as cleaning water, once the influence of the water pressure is eliminated via the open type tank, Since the washing water is supplied to the local washing section by the water supply means, the jetting force of the washing water can be made stable and a comfortable local washing operation can be obtained.

[Brief description of drawings]

FIG. 1 is a piping diagram of an embodiment of the present invention, and FIGS. 2 (a) and 2 (b).
Is a characteristic diagram showing the water pressure adjustable range of the conventional example and the present invention,
The figure is a side view of the same as above, and FIGS. 4 and 5 are perspective views of the same as above.
FIG. 6 is a partial perspective view of the above, FIG. 7 to FIG. 9 are sectional views of the open tank of the above, FIG. 10 is a plan view of the same, FIG. 11 is a block circuit diagram of the same, and FIG. Fig. 13 is an exploded perspective view of a case where a freeze prevention heater is provided, Fig. 13 is a partial block circuit diagram of the same as above, Fig. 14 is a partial block circuit diagram of another example, and Fig. 15 is a partial sectional view of a case where a pressure adjusting unit is provided. , FIG. 16 is a sectional view of another example of the pressure regulating unit, FIG. 17 is a sectional view of yet another example of the pressure regulating unit, FIG. 18 is a sectional view of another embodiment, and FIG. 19 is still another example. Fig. 20 is a partial block circuit diagram of the above,
FIG. 21 is a partial block circuit diagram of another example, and FIG. 22 is a partial block circuit diagram of yet another example, where 1 is a local cleaning device, 2
Indicates an open tank, and 3 indicates a water absorption pump.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Sakurai 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) Reference JP-A-61-45026 (JP, A) JP-A-62-72834 (JP, A)

Claims (1)

(57) [Claims] 1. In a local washing apparatus of a direct water supply type for directly supplying local washing water from a water pipe, a small-capacity open type tank provided separately from a low tank for toilet bowl connection is connected to the water pipe and A local cleaning apparatus comprising water supply means for sending water in a tank to a local cleaning section.