JPH0540143Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the improvement of a sanitary washing device that sprays washing water heated to an appropriate temperature to wash private parts. The purpose of this invention is to maintain a time difference between the nozzle device side that performs cleaning and the self-cleaning nozzle side that cleans the nozzle head equipped with a cleaning water spout in this nozzle device, so that the private parts and the nozzle head can be individually cleaned. .

[Conventional technology]

Conventionally, various types of sanitary cleaning devices have been used that are attached to a flush toilet or the like and spray out cleaning water heated to an appropriate temperature to clean private parts. The sanitary cleaning device is equipped with a nozzle device 1 as shown in FIG. 11, for example. As shown in FIGS. 11 and 12, this nozzle device 1 has a cylinder 2 formed in the shape of a covered tube, a piston 3 at the base end, and a nozzle head at the tip that protrudes from the cylinder 2 through a flow path 4. 5 is slidably housed, and the nozzle head 5 is normally moved to the outside by the biasing force of a compression spring 7 inserted between the tip inside the cylinder 2 and the piston 3. It is configured to be inserted into the cylinder 2 while remaining in the cylinder 2. When in use, cleaning water is fed into the cylinder 2 from the water inlet 9 via the water supply pipe 8 that connects to a heating device (not shown) installed separately in the sanitary cleaning device, and when the water pressure inside the cylinder 2 increases, the nozzle The piston 3 of the main body 6 is pushed in the axial direction of the cylinder 2 by the water pressure, causing the nozzle main body 6 to extend from the cylinder 2, and cleaning water is jetted from the spout 10 opened at the tip of the nozzle head 5 to clean the private parts. was going there.

[Problem that the invention attempts to solve]

However, in the nozzle device 1 included in a conventional sanitary cleaning device, the nozzle body 6 is pushed out from the cylinder 2 by the water pressure of the cleaning water, and the nozzle head 5 is positioned diagonally behind and below the private parts, and the nozzle body 6 is cleaned in this state. Since it only had the function of squirting water to cleanse private parts, it had the following drawbacks.

(1) The nozzle device 1 includes a washing water heating device,
It is housed in the casing of the sanitary cleaning device together with a solenoid valve for supplying and stopping the cleaning water, a control device, etc., and the nozzle head 5 is also housed inside the open end of the casing when not in use. However, the position where the nozzle head 5 is housed in the casing is always open so that the nozzle head 5 can go in and out of the toilet bowl, so when urinating or discharging waste, sewage may scatter and cover the periphery of the nozzle head and spout. There was a risk that the nozzle head would become contaminated or that filth or the like could adhere to the nozzle head while cleaning private parts.

(2) When the nozzle body 6 is immersed into the cylinder 2 after private cleaning, some of the cleaning water remaining in the nozzle body 6 flows back into the body of the sanitary cleaning device, but most of it flows into the nozzle head 5. It is ejected from the spout 10 like a water gun. In this case, since the spout 10 is provided with a small diameter in order to clean the private parts, it is troublesome to discharge and it takes time to store the nozzle body 6, and the cleaning water discharged from the spout 10 may cause damage to the body. There was a risk of getting some parts of the body or clothes wet.

[Purpose of invention]

The present invention eliminates the above-mentioned drawbacks and cleans the nozzle head immediately before and after using the sanitary cleaning device while the nozzle body is immersed in the cylinder, thereby keeping the nozzle device clean at all times. The purpose of the present invention is to provide a cleaning device.

[Means for solving problems]

In order to achieve the above-mentioned purpose, the present invention installs a water diversion device on the water inlet side of the nozzle device to feed cleaning water in two directions, and connects one side of this water diversion device with the water inlet of the nozzle device. , the other is connected to a self-cleaning nozzle for cleaning the nozzle head arranged in parallel to the cylinder axis, and this water diversion device has an opening end of a conduit communicating with the self-cleaning nozzle that can be opened and closed by an electromagnetic switching valve. At the same time, the opening end of the self-cleaning nozzle is made large in diameter, and the nozzle for spraying cleaning water that opens in the nozzle head that communicates with the water inlet is made small in diameter.When supplying cleaning water to the self-cleaning nozzle side, use a water diversion device When the large-diameter pipe on the self-cleaning nozzle side is opened, cleaning water becomes difficult to flow toward the nozzle device due to fluid friction because the nozzle device has a small-diameter spout for local cleaning, and cleaning Most of the water flows well through the self-cleaning nozzle side, cleaning the nozzle head quickly and reliably, and when flushing water to the nozzle device side, completely close the self-cleaning nozzle side before starting the water diversion device. Feed only to the conduit on the nozzle device side,
It is characterized in that the nozzle body can be extended well, the private parts can be washed hygienically, and the washing water can be used efficiently.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 10.

In FIGS. 6 to 8, the sanitary cleaning device 1
is fixed to the rear upper surface of the toilet bowl 12, and a toilet seat 14 and a toilet lid 15 are slidably attached to the front surface of the casing 13. As shown in FIGS. 9 and 10, inside the casing 13 are various devices such as a solenoid valve S, a heating device H, and a nozzle device 16 for supplying, heating, and spouting cleaning water, as well as piping between these devices. It has a built-in control device E that controls the water supply W and the heating, heat retention, and feeding and stopping of cleaning water to the nozzle device 16, and each switch on the operation panel 13a attached to the side of this casing 13 is operated. , squirt and stop the washing water to wash the private parts.

Next, as shown in FIG. 4, the nozzle device 16 consists of a cylinder 17 and a nozzle body 18 that protrudes and retracts from the cylinder 17 in the axial direction, and the cylinder 17 is attached to the bottom surface of the casing 13 as shown in FIG. The nozzle body 18 is attached to the provided support plate 19 with the tip thereof facing downward. The cylinder 17 has a water inlet 20 on the upper end side, and as shown in FIG.
It is connected to the heating device H via the electromagnetic switching valve 23. As shown in FIG. 4, the nozzle body 18 includes a piston 24 whose head slides inside the cylinder 17, and the tip of the piston 24 protruding from the cylinder 17 (on the right side in FIG. 4) is connected to the piston 24. The nozzle head 26 is fixed via the flow path 25 that
A compression spring 27 inserted between the tip of the cylinder 17 and the head of the piston 24 causes the nozzle head 2 to
The piston 24 is normally immersed in the cylinder 17 except for the piston 6, and when cleaning water flows into the cylinder 17, the piston 24 is pushed by the water pressure and the piston 24 is pushed into the cylinder 17.
The nozzle head 26 is set in the cleaning position. Incidentally, reference numeral 28 is a cleaning water spout opening opened at the upper part of the tip of the nozzle head 26.

Next, the structure of the electromagnetic switching valve 23 will be explained with reference to FIG. The electromagnetic switching valve 23 includes a drive unit 29 consisting of a plunger a and a coil b that applies electromagnetic force to the plunger a, and a valve port c and a large-diameter self-cleaning pipe of the water diversion device 22 by driving the plunger a. road d
A valve part 3 that accommodates a valve body e that opens and closes as necessary.
0, and is attached to the nozzle device 16 by the attachment piece 23a. A water passage part 31 is integrally installed in parallel with the valve part 30 to supply cleaning water, and this water passage part 31 has a cleaning water passage port f connected to the water supply pipe W, and a water passage part f connected to the water supply pipe W. An inflow hole g is provided for allowing the washed water to flow into the valve portion 30. Further, the valve portion 30 is provided with a large diameter self-cleaning pipe d, a communication port h for flowing the washing water to the nozzle device 16 through a small diameter inflow hole g of the water passage portion 31, and a washing pipe i. A water diversion device 22 provided therein is communicatively connected. That is, the valve portion 30 is configured to include a water passage portion 31 on its side and a water diversion device 22 on its upper portion.

Note that the inflow hole g is provided with a slightly larger diameter than the small-diameter jet port 28 of the nozzle head 26;
The water inlet f, the communication port h of the water diversion device 22, the cleaning pipe i, and the self-cleaning pipe d are formed to have substantially the same cross-sectional area and a large diameter.

As shown in FIGS. 1 and 2, a self-cleaning nozzle 32 for cleaning the nozzle head 26 is connected to the self-cleaning pipe d side of the water diversion device 22. A resin tubular body or rectangular tube body is used to extend along the axial direction of the cylinder 17, and the tip thereof has a hook 3 at a position perpendicular to the axial direction of the nozzle body 18, as shown in FIG.
3 protrudes in the horizontal direction, and a locking protrusion 34 provided on the peripheral edge of the tip of the cylinder 17 is removably penetrated and hooked into the not-illustrated engagement hole of the locking piece 33, whereby the self-cleaning nozzle 32 is attached to the cylinder 17 with the discharge port 35 at its tip corresponding to the upper peripheral edge of the nozzle head 26. And self-cleaning nozzle 3
The discharge port 35 of No. 2 is opened with approximately the same cross-sectional area as each of the pipes d and i of the water diversion device 22.
In this example, the cross-sectional area ratio between the nozzle head 5 and the jet nozzle 28 of the nozzle head 26 is approximately 10:1.

The heating device H is designed to be fully energized only when, for example, the solenoid valve S is opened and cleaning water flows into the heating device H, and at other times, enough power is supplied to keep the cleaning water in the heating device H warm. It is being received. In addition, although the discharge port 35 is formed in a rectangular shape, it may be circular.

When cleaning private parts, when the cleaning switch on the operation panel 13a is operated, a command signal from the control device E causes the solenoid valves S,
The heating device H and the electromagnetic switching valve 23 are operated (first
(See the solenoid valve and solenoid switching valve in Figure 0). When the solenoid valve S is opened, the cleaning water passes through the water supply pipe W to the heating device H.
The water flows into the water, is instantly heated to a temperature suitable for private parts cleaning, and is fed to the water passage f of the water passage part 31 that communicates with the valve part 30 of the electromagnetic switching valve 23. At this time, the driving portion 29 of the electromagnetic switching valve 23 operates to shift the plunger a.
Since the valve body e is lowered to close the valve port c and the self-cleaning pipe d side of the water diversion device 22 is opened, the cleaning water supplied from the water port f to the water passage section 31 will not flow. It flows into the valve part 30 in a state where the flow rate is restricted by the hole g, and is divided into the self-cleaning pipe line d and the communication port h of the cleaning pipe line i in the valve part 30. In this case, since the cross-sectional areas of the self-cleaning pipe d and the communication port h are almost the same, the cleaning water tries to flow into the self-cleaning and washing pipes d and i of the water diversion device 22 in almost the same amount. Since the cross-sectional area of the spout 28 of the nozzle device 16 is very narrow compared to the cross-sectional area of the discharge port 35 of the self-cleaning nozzle 32, the pressure loss increases at the spout 28 and cleaning water inevitably flows out. It becomes difficult.
On the other hand, since the discharge port 35 of the self-cleaning nozzle 32 has a very large cross-sectional area compared to the cross-sectional area of the jet port 28 of the nozzle device 16, the pressure loss of the fluid is reduced, and most of the cleaning water is As shown by the arrow, the cleaning water flows smoothly into the self-cleaning pipe d side, and the cleaning water that has flowed into the self-cleaning pipe d passes through the self-cleaning nozzle 32 and is directed to the nozzle head 26 of the nozzle device 16 from the discharge port 35 at its tip. (See the self-cleaning nozzle in FIG. 10) to clean the periphery of the spout 28. At this time, the cleaning pipe i-connection pipe 21 is
The cleaning water flowing into the cylinder 17 flows out only a small amount from the jet port 28 due to the pressure loss at the jet port 28, that is, the piston 2
It is not possible to secure enough inflow to obtain enough water pressure to push 4. Therefore, during a few seconds while the nozzle head 26 is being cleaned, the nozzle body 18 extends from the cylinder 17, and the cleaning water flows into the nozzle head 2.
There is no spouting from the spout 28 of No. 6. In addition, some of the cleaning water discharged from the discharge port 35 of the self-cleaning nozzle 32 flows toward the nozzle device 16, so that the discharge force (flow velocity) from the self-cleaning nozzle 32 decreases; 18
Moreover, since the discharge port 35 is provided close to the nozzle head 26 as shown in FIG. 2, it is possible to clean the nozzle head 26 even if the discharge force is somewhat reduced. can.

As mentioned above, before cleaning the private area, the nozzle body 1
When cleaning of the nozzle head 26 (1 to several seconds) in step 8 is completed, the power to the electromagnetic switching valve 23 is cut off by a command signal from the control device E (see the electromagnetic switching valve and self-cleaning nozzle in FIG. 10). For this reason, the plunger a
is raised by the force of spring j, and as shown in FIG. 3, self-cleaning pipe d is closed by valve body e and valve port c is opened. When the valve c is opened, the cleaning water supplied to the water passage part 31 flows into the valve part 30 from two places, the inflow hole g and the valve port c, and is supplied to the cleaning pipe i through the communication port h. sent. In this case, since the self-cleaning pipe d is completely closed by the valve body e, the washing water that has flowed into the valve part 30 can be smoothly fed from the communication port h to the washing pipe i, and the water can be quickly delivered to the cylinder. When the water pressure in the cylinder 17 rises to the point where it can push the piston 24, the nozzle body 18 rapidly extends from the cylinder 17 as shown by the two-dot chain line in FIG. Set it in a position where you can wash your private parts. At the same time as the nozzle head 26 stops at the fixed position, cleaning water is jetted out from the spout 28 to clean the private parts (see the nozzle device in FIG. 10).

When you have finished cleaning your private parts, press the operation panel 13.
When the stop switch a is pressed, the solenoid valve S is temporarily closed by a command signal from the control device E, and conversely, the solenoid switching valve 23 is re-operated (see the solenoid valve, electromagnetic switching valve, and nozzle device in Fig. 10). . As a result, the jetting of cleaning water from the nozzle device 16 is stopped, and the self-cleaning pipe d side of the water diversion device 22 is opened, so that the inside of the cylinder 17 is communicated with the atmosphere by opening the self-cleaning pipe d. The water pressure suddenly decreases, and the flushing water filling the nozzle body 18 flows backward from the cylinder 17 and is discharged into the toilet bowl 12 through the valve portion 30 and the self-cleaning nozzle 32. Due to the backflow and discharge of the cleaning water, the nozzle body 18 is rapidly retracted into the cylinder 17 by the force of the compression spring 27.

When the nozzle body 18 is recessed into the cylinder 17, that is, when the nozzle head 26 is accommodated in the casing 13 as shown by the solid line in FIG. is operated again (see the solenoid valve in Fig. 10), the cleaning water supply channel is opened, and the cleaning water flows to the self-cleaning nozzle 32 side in the same way as at the initial stage of private part cleaning, and the nozzle head 26 of the nozzle body 18 is cleaned ( (See self-cleaning nozzle in Figure 10). When cleaning of the nozzle head 26 (1 to several seconds) is completed, the power supply to the solenoid valve S and the solenoid switching valve 23 is cut off by a command signal from the control device E (the first
(Refer to the solenoid valve, solenoid switching valve, and self-cleaning nozzle in Figure 0),
The cleaning of the private parts and the nozzle head 26 is completely completed.

The operation time of the electromagnetic switching valve 23 at the beginning and end of the private part cleaning and the opening time of the electromagnetic valve S at the end of the cleaning can all be controlled by a microcomputer incorporated in the control device E.

Further, the present invention has described an embodiment in which the electromagnetic switching valve 23 is connected to the lower side of the water dividing device 22, and when electricity is applied, the plunger a is lowered to open the self-cleaning nozzle 32 side, but the present invention is limited to this. Instead, a solenoid switching valve is installed on the upper side of the water diversion device 22, and when the power is not energized, the plunger is always biased in the direction of closing the valve port c to open the self-cleaning nozzle side, and in the event that the solenoid valve S is opened. If a failure occurs in this condition, the cleaning water will flow out to the self-cleaning nozzle side, and the cleaning water will flow into the nozzle device, pushing out the nozzle body and squirting cleaning water from the spout, causing water to flood the toilet. The present invention can also be achieved even if such a situation is prevented from occurring.

Furthermore, it goes without saying that the opening cross-sectional area of the inflow hole g is such that the cleaning water can be jetted toward the private parts even when the flow rate valve R shown in FIG.

[Effect of idea]

In the present invention, a self-cleaning nozzle for cleaning a nozzle head equipped with a small-diameter spout from which cleaning water is jetted is installed in parallel to a nozzle device of a sanitary washing device, and cleaning water is injected between the self-cleaning nozzle and the nozzle device into both nozzles. A water diversion device is attached to the water diversion device, and an electromagnetic switching valve equipped with a valve body that opens and closes the self-cleaning pipe side is connected to this water diversion device.
A water passage section is installed in parallel, and a water passage port that connects to the water supply pipe and a small diameter inlet hole that communicates with the water diversion device are provided in this water passage section, and the inflow hole of the water passage section and the water diversion device are cleaned. A communication port with approximately the same diameter as each of the pipes is provided between the pipes, and the cross-sectional area of the jet port of the nozzle head is formed to be considerably narrower than the cross-sectional area of the discharge port at the tip of the self-cleaning nozzle. First, the self-cleaning nozzle side is opened and cleaning water is discharged into the nozzle head of the nozzle device for cleaning. After cleaning the nozzle head, the cleaning water is immediately switched to the nozzle device side and fed to clean the private parts. Since it is configured as follows, it has the following effects.

In this invention, when cleaning private parts, first, the cleaning water is distributed to the self-cleaning nozzle side using a water diversion device,
This cleaning water is discharged from a cleaning water spout provided on the nozzle device side to a nozzle head that opens, so that the nozzle head can be cleaned in advance. Since the user can wash their private parts hygienically and comfortably, the user can wash their private parts hygienically and comfortably.
Further, when cleaning the nozzle head of the nozzle device, the discharge port of the self-cleaning nozzle, which is connected to the water distribution device and extended to the position of the nozzle head, is opened to the nozzle head which also communicates with the water distribution device through the nozzle body. Since the opening has a large diameter relative to the cross-sectional area of the spout, most of the cleaning water for cleaning the nozzle head before and after local cleaning can be supplied to the self-cleaning nozzle side. can be washed hygienically, smoothly, and well. Moreover, when cleaning the nozzle head, some of the cleaning water flows into the nozzle device and is discharged from the nozzle head nozzle, so the water used to clean the nozzle head flows into the nozzle head from the nozzle nozzle and remains. Since there is no problem at all, private parts can be washed hygienically.

Furthermore, when cleaning the private parts, the self-cleaning nozzle side is completely closed by the valve body operated by the electromagnetic switching valve, even though the nozzle head has a small diameter spout. All of the washing water heated to an appropriate temperature can flow into the nozzle device and be used for washing the private parts, making it possible to secure the amount of water necessary for washing the private parts and making it possible to wash the private parts comfortably. can. That is, although the present invention uses separate nozzles for cleaning the nozzle head and private parts, the structure is such that while one nozzle is in operation, cleaning water does not leak out from the other nozzle more than necessary. This allows efficient use of cleaning water.

Furthermore, in the present invention, a valve element for opening and closing this pipeline and an electromagnetic switching valve for driving this valve element are installed on the self-cleaning pipeline side that communicates with the self-cleaning nozzle side of the water diversion device. Although the valve switches the flow path between the self-cleaning nozzle side and the nozzle device side through which cleaning water flows, there is a considerable difference in opening cross-sectional area between the discharge port on the self-cleaning nozzle side and the jet port on the nozzle head side. As a result, if only the self-cleaning pipe side is opened and closed by the valve body, the flow path of the cleaning water can be successfully switched to the self-cleaning nozzle side and the nozzle device side.As a result, the electromagnetic switching valve for driving the valve body There is no need to install the valve body separately on the self-cleaning nozzle side and the nozzle device side, and it is only necessary to install it on the self-cleaning nozzle side. It is possible to easily and economically install a water diversion device for flow path switching.

As described above, the present invention is configured so that the nozzle head of the nozzle device can always be washed with washing water before and after cleaning the private parts, so it is possible to always maintain the nozzle device clean. , the private parts can be washed hygienically, smoothly and favorably, and as a result, the user can comfortably use the sanitary washing device without feeling unclean or uncomfortable.

[Brief explanation of the drawing]

Fig. 1 is a cutaway sectional view showing the main part of the nozzle device used in the sanitary cleaning device of the present invention, Figs. 2 and 3 are cutaway sectional views of the main part showing the usage state of the nozzle device, and Fig. 4 is Similarly, FIG. 5 is a sectional view taken along line X-X in FIG. 2, FIG. 6 is a perspective view of the proposed device, FIG. 7 is a partially cutaway sectional view, and FIG. 9 is an explanatory diagram of the operation, FIG. 10 is a timing chart, and FIGS. 11 and 12 are a longitudinal section and a cross-sectional plan view of a nozzle device used in a conventional sanitary washing device. 16... Nozzle device, 18... Nozzle body, 2
2... Water diversion device, 23... Solenoid switching valve, 26...
Nozzle head, d...Self-cleaning pipe, g...Inflow hole,
h...Connection port, i...Cleaning pipe.

Claims (1)

[Scope of utility model registration request] A self-cleaning nozzle for cleaning the nozzle head is arranged in parallel with a nozzle device configured to spout cleaning water from a spout opening in the nozzle head,
A discharge port opening at the tip of the self-cleaning nozzle is formed to have a larger diameter than the spout port of the nozzle head, and a self-cleaning nozzle is provided at the base of the self-cleaning nozzle to communicate cleaning water from a water supply source to the self-cleaning nozzle and the nozzle device, respectively. A water diversion device is installed that includes a pipe line and a cleaning pipe line and that separates and supplies cleaning water to both the nozzles, and this water diversion device is equipped with a valve body that opens and closes only the self-cleaning pipe side as necessary. connected to a solenoid switching valve, which first opens the self-cleaning pipe side when cleaning the private parts to allow most of the cleaning water to flow into the self-cleaning nozzle;
This inflowing cleaning water is sprayed to the nozzle head of the nozzle device for cleaning, and after cleaning the nozzle head, the self-cleaning pipe side is closed and all of the cleaning water is switched to the nozzle device side to perform private cleaning. A sanitary cleaning device characterized by: