JPH0380940B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sanitary cleaning device used for a Western-style toilet seat. For Western-style toilet seats, sanitary cleaning devices equipped with hot water jetting devices to spray hot water to cleanse private parts after using the toilet, heated toilet seats to warm the user's buttocks, etc. have been available in a variety of structures. things are provided. However, with conventional sanitary cleaning devices, the toilet seat is heated using a small-capacity tubing heater, etc., resulting in uneven temperature on the toilet seat surface, and the hot water is stored in a small-capacity electric water heater, which reduces the amount of hot water for private washing. There were inconveniences such as the cold water that was stored in the pipes being used as the initial flushing water when washing private parts to be sprayed out.

The present invention solves the above-mentioned conventional drawbacks, and provides a hot water storage toilet seat whose interior is filled with hot water, a hot water jetting machine disposed at the lower part of the toilet seat, and a hot water jetting machine and the hot water storing toilet seat. In a sanitary washing device equipped with an electric water heater that supplies hot water, the rear of the toilet seat for storing hot water is formed into a cylindrical shape, and both sides of the cylinder are fixed to the top surface of the toilet seat using bearings so that the toilet seat can be raised and lowered freely. At the same time, between one side of the cylinder and the electric water heater, hot water heated by the electric water heater is introduced into the hot water storage toilet seat, and wash water cooled by the hot water storage toilet seat is introduced into the electric water heater. The present invention relates to a sanitary washing device, characterized in that a communication flow path is provided therein, and a hot water ejection pipe for ejecting hot water for washing from the electric water heater is arranged so as to be in contact with the outer wall of the lower surface of the toilet seat when not washing. This makes it possible to downsize the electric water heater because it has a hot water storage chamber inside the toilet seat, and even though it is a small electric water heater, it can provide a large amount of hot water for washing due to the amount of hot water inside the toilet seat. Since it is possible to connect an electric water heater to the large-diameter cylinder behind the hot water storage toilet seat, natural convection of hot water is actively generated between the hot water storage toilet seat and the electric water heater, making the toilet seat comfortable. In addition, the hot water spouting pipe that spouts hot water for cleaning from the electric water heater is arranged so as to be in contact with the outer wall of the bottom surface of the toilet seat when not washing, so the hot water in the hot water spouting pipe is By maintaining an appropriate temperature and shortening the distance to the tip of the shower nozzle, there is no possibility of cold water coming out from the shower nozzle at the beginning of the jet. The purpose of the present invention is to provide a sanitary cleaning device that moves to the low tank side together with the hot water storage toilet seat and is hygienic because there is no protrusion on the inner periphery of the toilet seat, preventing urine from splashing on it.

The specific embodiments of the sanitary cleaning device according to the present invention will be explained in more detail with reference to the drawings.
In the figure, 1 is a Western-style toilet seat, 2 is a toilet seat that can be raised and lowered on the toilet bowl 1, 3 is a toilet lid that can be raised and lowered on the toilet seat 2, and 4 is a cylindrical shape on one side of the rear end of the toilet seat 2. An electric water heater 6 protruding through the connecting portion 5 is a low tank installed at the rear of the toilet bowl 1. The toilet seat 2 has a hollow shape as shown in FIG. 3, and has a hot water circulation chamber 7 formed therein, and the hot water circulation chamber 7 is formed around the entire circumference of the toilet seat. Further, as shown in FIG. 2, on the back side of one side of the toilet seat 2,
A swing-type hot water jetter 8 for washing private parts is provided protrudingly. The attachment location of the hot water jet device 8 is not limited to the toilet seat 2; for example, a fixed hot water jet nozzle may be provided at the rear center of the back surface of the toilet seat.

The electric water heater 4, which protrudes from one side of the rear end of the toilet seat 2, is installed at approximately the same horizontal height of the toilet seat 2, as shown in FIG. The toilet seat 2 is configured so that the hot water smoothly flows from the top thereof through the cylindrical connecting portion 5 into the hot water circulation chamber 7 inside the toilet seat 2, which is in communication with the toilet seat 2. Reference numeral 9 denotes a pipe heater built into the electric water heater 4, and the pipe heater 9 is installed substantially perpendicular to the toilet seat 2 when the toilet seat 2 is in a horizontal position.

10 is a temperature sensor such as a thermistor for controlling the internal hot water temperature of the electric water heater 4; 11 is an automatic return type bimetal; and 12 is a temperature fuse, all of which are attached to the upper part of the water heater 4. be. The automatic return type bimetal 11 and temperature fuse 12 have a function of preventing excessive temperature rise of the electric water heater, and the temperature sensor 10 such as the thermistor
As a safety measure in the event that the pipe heater 9 becomes overheated due to a failure or other accident, the automatic reset type bimetal 11 is first activated in the event of an abnormality, and then the temperature fuse 12 is activated.

13 is a raw water supply pipe attached to the side wall of the electric water heater 4, and the raw water supply pipe 13 is connected to the low tank 6 via a water supply pipe 14 and a flow rate adjustment valve 15 shown in FIG. On the other hand, as shown in FIG. 4, etc., the tip supply port 16 of the raw water supply pipe 13 faces the side of the inside of the water heater 4, and raw water is injected from the tip supply port 16 to the inside of the container.

Reference numeral 17 shown in FIGS. 1, 2, etc. is a check valve that allows the expanded water inside the electric water heater 4 to flow back to the low tank 6 side through the raw water supply pipe 13 and the water supply pipe 14. It also has the function of preventing cold water from flowing out from the low tank 6 side to the shower nozzle 18 due to the siphon phenomenon. 13 is a drain provided on the side of the electric water heater 4, and the drain 13 is the same as the raw water supply pipe 13 of the electric water heater 4;
This is for draining the water stored inside the electric water heater 4 when the electric water heater 4 is not used for a long period of time or when there is a risk of a freezing accident occurring in winter.

1 and 5, reference numeral 19 denotes a housing made of synthetic resin or the like that constitutes a part of the outer wall of the electric water heater 4;
It has a waterproof structure to protect electrical parts such as the automatic return type bimetal 11 on the upper part, the temperature fuse 12, and the pipe heater 9.

Further, the cylindrical connecting portion 5 connecting the toilet seat 2 and the electric water heater 4 is a hollow cylindrical portion that communicates the hot water distribution chamber 7 inside the toilet seat 2 with the inside of the electric water heater 4, as shown in FIG. The cylindrical connecting portion 5 is rotatably supported by left and right bearings 20, 21,
Left and right snap springs 22 and 23 prevent left and right wobbling during rotation.

6 are torsion coil springs 24 and 25, which are attached to the cylindrical connecting portion 5, one end of which is hooked to the pedestal 26, and the other end of which is attached to the electric water heater. It is hooked to a torsion coil spring receiver 27 installed on the side of 4. In addition, as shown in the figure, if necessary, a temperature device 2 can be installed.
8 may be installed and a torsion coil spring may also be attached to the cylindrical connecting portion 5 of the hot air device 28. Alternatively, as shown in FIG. 7, one end of the tension spring 29 may be attached to the base 26, and the other end may be attached to the cylindrical connecting portion 5. The torsion coil springs 24, 25 and the tension spring 29 function to prevent the hot water storage toilet seat 2 from falling onto the toilet bowl 1 when it is on the low tank 6 side, but they do not need to be particularly installed.

Reference numeral 30 shown in FIG. 3 is an electronic controller main body, and an electronic control section of the electronic controller main body 30 is connected to a temperature sensor 10 such as the thermistor inside the electric water heater 4 to detect the temperature of the hot water inside the water heater 4. It is electronically controlled to keep it at the right temperature at all times. 31 is a transformer, and 32 is a rectifier, which constitute an electric control section of a water pump (not shown) built into the low tank 6.

The toilet seat 2, the cylindrical connection part 5, and the electric water heater 4 are made of stainless steel, and the surface of the toilet seat 2 may be coated with a thin film of resin.
These materials, surface treatments, etc. are not necessarily limited.

Reference numeral 8 denotes a hot water jetting device attached to one side of the hot water storage type toilet seat 2, and the hot water jetting device 8 is attached to the bottom of the toilet seat 2 by a mounting bracket 33 as shown in FIGS. 2 and 8. A cylindrical bearing 34 is fixed,
The interlocking shaft 35 is rotatably fitted into the cylindrical bearing 34, and a locking member 36 is held at one end of the cylindrical bearing 34. The locking member 3 is attached to the interlocking shaft 35 which is rotatably fitted onto the outer circumferential surface and which can protrude slightly from the opening at one end of the cylindrical bearing 34.
A short shaft 37 is inserted through the shaft 37 so that the shaft 37 rotates together with the shaft 6, and is integrally connected to the shaft 37.

Reference numeral 38 denotes an operating lever screwed onto a protruding ring portion 39 that projects in a direction perpendicular to the center line of the locking member 36. A spherical body 40 is provided inside the connecting end of the operating lever 38, and the spherical body 40 is held therein. Compression spring that can be held 4
This spherical body 40 is always urged in the direction of the outer peripheral surface of the cylindrical bearing 34 by the accumulated force of 1, and the cylindrical bearing 34
Swing stop grooves 42, 43, and 44 for receiving the sphere 40 are formed on a concave surface by V-cutting at predetermined positions on the outer circumferential surface of the swing stop groove. The swing stop grooves 42, 43, and 44 are for determining the standby position, cleaning position, and bidet position of the shower nozzle 18, which will be described later.

Reference numeral 45 shown in FIG. 8-a is a rotation range regulating groove for regulating the rotation range of the shower nozzle, into which a pin (not shown) is inserted so as to rotate integrally with the lock member 36. The tip portion is loosely fitted into the rotation range regulating groove 45.

In FIG. 8 and the like, reference numeral 46 denotes a joint pipe on the water supply side that is fitted onto the tip of the interlocking shaft 35 that protrudes from the other end opening of the cylindrical bearing 34;
By tightening the set screw 47, the interlocking shaft 35 and the joint pipe 46 on the hot water supply side are integrally connected to the fixed side cylindrical bearing 34 so as to rotate together. Connect the base end of the hot water jet pipe 48 to 46,
A shower nozzle 18 is protruded from its tip and is rotatably arranged below the toilet seat 2.

Further, as shown in FIGS. 3 and 8, the cylindrical bearing 3
A hot water suction pipe 49 is fitted into the outer peripheral wall of the toilet seat 2, and the other end of the hot water suction pipe 49 is disposed inside the toilet seat 2, and the hot water suction port 50 at the tip thereof is inserted into the toilet seat 2.
It is fixed in the hot water distribution chamber 7 at the center of the internal tip in an upward direction.

When cleaning the private parts and the bidet position, the inside of the hot water suction pipe 49 is connected to the one end opening 52 of the through hole 51 formed inside the interlocking shaft 35 connected thereto.
As the other end opening of the through hole 51,
As shown in FIG. 8b, it has a standby conduit 53, a cleaning conduit 54, and a bidet conduit 55, any of which communicates with the inside of the hot water suction pipe 49. , the interlocking shaft 35 on the movable side is connected to the shower nozzle 1 with respect to the cylindrical bearing 34 and the hot water intake pipe 49 on the fixed side.
8, the through hole 51 of the interlocking shaft 35 and the inside of the hot water suction pipe 49 are configured to always maintain communication with each other no matter which angular position is fixed among the standby position, the washing position, and the bidet position. . In addition, if the hot water storage type toilet seat 2 has its upper wall made of a material with good thermal conductivity and its lower wall made of a material with excellent heat insulation properties, a heated toilet seat with high thermal efficiency can be obtained. , it does not specifically inquire about the quality of these materials or the presence or absence of surface treatment.

In addition, when the toilet seat 2 is placed face down on the toilet bowl 1, as shown in FIG. A support member 56 is provided on the lower surface of the toilet seat 2.

In the above configuration, the hot water circulation path in the device will first be described as follows.

The raw water that can be stored inside the low tank 6 is operated by the water supply pump, and passes through a strainer (not shown) provided on the raw water suction side of the water supply pump, a check valve 17, a water supply pipe 14, and a flow rate adjustment valve 15 in sequence. Then, the raw water supply pipe 1 installed in the electric water heater 4
3 and flows into the vessel from its tip supply port 16. The hot water heated to an appropriate temperature by the pipe heater 9 in the electric water heater 4 is sent out from the electric water heater 4 by natural convection that occurs due to the temperature difference of the fluid, and is sent out from the electric water heater 4 through the communication of the cylindrical connecting part 5. The hot water flows into the hot water distribution chamber 7 inside the toilet seat 2 through the hole. The hot water that has flowed into the circulation chamber 7 branches into two directions, left and right, along the upper surface of the circulation chamber 7, and after merging at the innermost part from the hot water inlet of the toilet seat 2, the hot water that has cooled down during that time flows. The water is branched and refluxed along the lower surface of the circulation chamber 7, and is further refluxed back to the inside of the electric water heater 4 via the cylindrical connecting portion 5. That is, hot water is constantly circulated between the electric water heater 4 and the hot water distribution chamber 7 inside the toilet seat 2 by natural convection of fluid caused by the temperature difference of the hot water, and the lowered temperature of the hot water is converted into electric hot water. While passing through the inside of the vessel 4, it is heated to an appropriate temperature by the internal pipe heater 9, and the superheating temperature of this hot water is automatically controlled by the electronic controller body 30 built into the body case 57. The temperature is controlled to maintain a constant temperature at all times.

The natural convection described above, which occurs due to the temperature difference in hot water, occurs not only when the toilet seat 2 is placed face down on the toilet bowl 1, but also when the toilet seat 2 is placed against the low tank 6 side. Even in this case, hot water always circulates smoothly between the electric water heater 4 and the hot water distribution chamber 7 in the toilet seat 2.

Next, when the device is operated to jet hot water from the cleaning device, the procedure is as follows.

When the toilet seat 2 is placed face down on the toilet bowl 1,
When the cleaning button 58 on the main body case 57 is pressed, a water supply pump (not shown) built into the low tank 6 is activated. By the operation of this water supply pump, the raw water inside the low tank 6 passes through the strainer, the water supply pump, the check valve 17, the water supply pipe 14, the flow rate adjustment valve 15, etc. in this order, and then the raw water installed in the electric water heater 4 It is supplied into the vessel through the supply pipe 13 from its tip supply port. On the other hand, since hot water superheated by the pipe heater 9 is stored inside the electric water heater 4, the amount of water supplied inside the electric water heater 4 through the raw water supply pipe 13 increases by the amount of water supplied through the raw water supply pipe 13.
This increased amount of hot water is used for cleaning the hot water storage toilet seat 2.
The hot water is sucked into the pipe through the hot water distribution chamber 7 inside the toilet seat, the hot water inlet 50 fixed upward at the center of the tip inside the toilet seat, the hot water is drawn into the pipe through the hot water inlet pipe 49, the through hole 51 of the interlocking shaft 35, and further between these. The hot water is sprayed from the shower nozzle 18 protruding from the tip of the hot water spouting pipe 48 through the hot water supply side joint pipe 46 and the hot water jetting pipe 48 which are in communication with each other. Note that the amount of hot water for cleaning jetted from the shower nozzle 18 can be arbitrarily adjusted by a flow rate adjustment valve 15 provided in the raw water supply path. In addition, in order to prevent forgetting to stop the water supply pump, even if the flow rate adjustment of the flow rate adjustment valve 15 is set to the minimum, the shower nozzle 18 is configured so that the flow rate is such that hot water does not splash on the buttocks. It has been done.

Since the sanitary cleaning device according to the present invention has the above-mentioned configuration, it can significantly exhibit various excellent effects as described below.

a) Since the toilet seat itself is a hot water storage toilet seat that has a hot water circulation chamber inside, the water heater can be small and the device can be made compact. Therefore, even in a small toilet, a compact device can provide an abundance of hot water for private washing.

b) The toilet seat itself is a hot water storage toilet seat that has a hot water distribution chamber inside, and the rear part of the hot water storage toilet seat is made into a cylindrical shape so that it can communicate with the electric water heater, so that the temperature of the fluid is maintained between the hot water storage toilet seat and the electric water heater pipe. Since hot water is constantly circulated by actively generating natural convection caused by the difference in temperature, this warm water not only heats the toilet seat, but also provides the unique and comfortable warmth of hot water that cannot be obtained with conventional tubing heaters. It can be accessed from the top of the toilet seat.

c) Since the hot water spouting pipe that spouts hot water for cleaning from the electric water heater is arranged so as to be in contact with the outer wall of the lower surface of the hot water storage toilet seat when not washing, the hot water in the hot water spouting pipe maintains an appropriate temperature, and Combined with the shortened distance to the tip of the shower nozzle, there is no chance of cold water coming out at the beginning of the spray from the shower nozzle, so you can wash your private parts with confidence.

d) Since the hot water jetting device is integrated with the hot water storage toilet seat, the hot water jetting device and the hot water storage toilet seat are separated from the top of the toilet bowl when men use the toilet, and there are no protrusions on the inner periphery of the toilet bowl. It is very hygienic as it does not easily get urinated.

[Brief explanation of drawings]

Fig. 1 shows one embodiment of the present invention, and is a perspective view of the entire device with only the toilet lid leaning against the low tank side, and Fig. 2 shows the same device with both the toilet lid and the toilet seat placed on the low tank side. Figure 3 is a cross-sectional plan view of the main parts of the equipment, Figure 4 is a vertical cross-sectional side view of the main parts showing the raw water supply structure of the equipment, and Figures 5 and 6 are FIG. 7 is a side view of the main part showing a modified example of the toilet seat undulating support structure, and FIG. 8 is a vertical cross-sectional view of the main part showing the structure of the hot water jetter. , FIG. 8-a shows the swing stop part of the hot water jet machine B
FIG. 8-b is a cross-sectional view of the main part of the same-temperature water jetting machine, taken along the line A-A. 1 is a Western-style toilet bowl, 2 is a toilet seat, 3 is a toilet lid, 4 is an electric water heater, 5 is a cylindrical connection part, 6 is a low tank, 7 is a hot water distribution room, 8 is a hot water jet machine, 9 is a pipe heater, 10 is a Temperature detection unit, 11 is an automatic return type bimetal, 12 is a temperature fuse, 13 is a raw water supply pipe.
Drain, 14 is a water supply pipe, 15 is a flow rate adjustment valve, 1
6 is a tip supply port, 17 is a check valve, 18 is a shower nozzle, 19 is a housing, 20 is a bearing, 21 is a bearing, 22 is a snap ring, 23 is a snap ring, 24 is a torsion coil spring, 25 is a torsion coil spring, 26 is a pedestal , 27 is a torsion coil spring holder, 28 is a warm air device, 29 is a tension spring, 3
0 is the electronic controller body, 31 is the transformer,
32 is a rectifier, 33 is a mounting bracket, 34 is a cylindrical bearing, 35 is an interlocking shaft, 36 is a locking member, 37 is a short shaft, 38 is an operating lever, 39 is a protrusion, 40 is a sphere, 41 is a compression spring, 42 is a swing stop groove, 4
3 is a swing stop groove, 44 is a swing stop groove, 4
5 is a rotation range regulating groove, 46 is a joint pipe on the hot water supply side, 47
is a set screw, 48 is a hot water jet pipe, 49 is a hot water suction pipe, 50 is a hot water inlet, 51 is a through hole, 52 is one end opening, 53 is a standby conduit, 54 is a cleaning conduit, 5
5 is a bidet guide hole, 56 is a support member, 57 is a main body case, and 58 is a cleaning button.

Claims (1)

[Claims] 1. A sanitary washing device comprising a hot water storage toilet seat whose interior is filled with hot water, a hot water jetter disposed below the toilet seat, and an electric water heater that supplies hot water to the hot water jetter and the hot water storage toilet seat, The rear of the hot water storage toilet seat is formed into a cylindrical shape, and both sides of the cylinder are fixed to the top surface of the toilet bowl using bearings so that the toilet seat can be raised and lowered freely, and there is a space between one side of the cylinder and the electric water heater. A communication flow path is provided that allows hot water heated by the electric water heater to be introduced into the water storage toilet seat and washing water that has been cooled by the hot water storage toilet seat to be introduced into the electric water heater. A sanitary washing device characterized in that a hot water spouting pipe for spouting hot water is arranged so as to be in contact with the outer wall of the lower surface of a hot water storage toilet seat when not washing.