JPH0347370B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a human body private part cleaning device (hereinafter simply referred to as a cleaning device) in a toilet.

In recent years, cleaning devices have been widely used as their utility value has been recognized from the viewpoint of health and hygiene. In conventional cleaning equipment, the nozzle tip extends in two stages, and the first
It is known that when the stage is extended, it has an anal cleaning function in which a relatively strong jet of water is ejected from the nozzle tip, and when the second stage is extended, it has a bidet cleaning function that ejects relatively weak water from the nozzle tip. . this,
A conventional cleaning device has a structure in which an orifice is provided in a water passage to send relatively weakly pressurized water to the tip of the nozzle, and relatively weakly pressurized water is supplied to the nozzle. In this device, when cleaning is completed and the nozzle tip returns to its original position due to the urging force of a spring or the like, the pressurized water flows out through the gap in the sliding part or the like. However, because the outflowing water has to pass through gaps, the return of the nozzle is slow and takes a relatively long time. For this reason, when switching from bidet cleaning to anal cleaning, there is an inconvenience in that anal cleaning must wait for a certain period of time until the nozzle returns to its original position.

The present invention overcomes the above problems and provides a cleaning device in which the nozzle returns quickly.

That is, the human body private parts cleaning device of the present invention includes a first cylinder forming a first cylinder chamber, a second cylinder forming a second cylinder chamber inserted into the first cylinder chamber, and a second cylinder forming a second cylinder chamber inserted into the second cylinder chamber. a nozzle having a water passage inside and having a spout hole formed at its tip for spouting cleaning water; and a second water supply passage provided with an orifice for supplying pressurized water to the first cylinder chamber when cleaning the bidet. a first water supply passage for supplying pressurized water to the second cylinder chamber during bidet cleaning or anal cleaning; and a first water supply passage provided at the rear end of the second cylinder and extending in the distal direction by water supply from the second water supply passage. a second piston that is provided at the rear end of the nozzle and extends in the distal direction when water is supplied from the first water supply passage; and a second piston that supplies pressurized water to the first water supply passage and the second water supply passage. In a human body private parts cleaning device including a pressure water supply/drainage device for supplying water and discharging water to a drain port, the pressure water supply/drainage device has one end communicating with the first cylinder chamber in parallel with the second water supply passage. A drainage passage is provided, and the drainage passage is characterized by having a one-way valve that is only capable of draining water, and preferably the one-way valve is a ball valve.

In the human body private parts cleaning device of the present invention, the pressure water supply/drainage device is provided with a drainage passageway parallel to the second water supply passageway and having one end communicating with the first cylinder chamber, and the drainage passageway is capable of only draining water. It is characterized by its structure in that it has a one-way valve. Other parts constituting the human body private parts cleaning device of the present invention, such as cylinders, pistons, pressure water supply/drainage devices, etc., are basically the same as those of conventional human body private parts cleaning devices, and these parts of the conventional human body private parts cleaning device are basically the same as those of the conventional human body private parts cleaning device. can be used.

In the human body private parts cleaning device of the present invention, when performing bidet cleaning, the pressure water supply device/drainage device introduces pressure water into the first cylinder chamber through the second water supply passage having an orifice, and One piston is pushed by this pressure water and extends toward the tip. At this time, the drainage passage is closed by its one-way valve. On the other hand, when the supply of pressure water from the pressure water supply/drainage device is stopped and the water pressure within the pressure water supply/drainage device decreases, the first piston attempts to return to its original position due to the biasing force of a spring or the like. Due to the biasing force of this spring, the water in the first cylinder chamber flows back from the first cylinder chamber to the drain port of the pressure water supply/drainage device. In this case, the water in the first cylinder chamber flows back to the pressure water supply/drainage device through gaps such as sliding parts and a drainage passage having a one-way valve, and is drained from the drainage port. In other words, the one-way valve of the drainage passage is in an open state, and since the water supply resistance of this drainage passage is small, the water in the first cylinder chamber is drained in a short time despite the small urging force of the spring, etc., and the water in the first piston is drained. returns to its original position in a short time.

The human body private part cleaning device of the present invention may have a nozzle that protrudes in two stages, similar to conventional cleaning devices.
Furthermore, in special cases, a cleaning device may be used in which the nozzle protrudes in one step.

In the human body private parts cleaning device of the present invention, the water in the cylinder chamber is drained through the drainage passage in a short time, so the piston returns quickly, and it is possible to switch from bidet cleaning to anal cleaning in a short time, for example. .

Examples will be explained below.

Embodiment FIG. 1 shows an overall cutaway view of the main parts of the cleaning device of this embodiment, and FIG. 2 shows its electric circuit. This device includes a water tank 1, a first cylinder device 2 whose rear end is inserted into the water tank 1 constituting a nozzle cylinder, a second cylinder device 3, and a pressure water supply/drainage device 4. is the main component.

The water tank 1 is a resin molded product, mainly the container part 1.
1 and a lid part 12, and has a tank chamber 1a inside.
It has a pressurized water inlet 1c at the bottom and an outlet 1b at the top. A first cylinder 21, which will be described later, is obliquely inserted into the lower side wall of the water tank 1, and its upper half is held within the tank chamber 1a. In addition, a part of the side wall of the water tank 1 near the rear end of the first cylinder 21 (upper right side in FIG. 1) becomes the rear end of the first cylinder 21 and is part of the pressure water supply/drainage device 4 described later. A section is formed.

That is, a circular stepped recess 12a is formed inside the lid 12 of the water tank 1. This stepped recess 12a forms a part of the inner wall surface of a first cylinder chamber 216 of the first cylinder 21, which will be described later. Moreover, the central recess 12b at the bottom of the stepped recess 12a
The central tube 23 is fixed in a watertight manner by a ring-shaped fixture 231 and a rubber seal 232. A first port 411 of a first water passage 41, which will be described later, is opened in the center of the central recess 12b. Note that this first port 411 is connected to the shaft hole 2 of the central pipe 23.
It communicates with 3a. Further, a second water supply passage 42 is provided in the ring-shaped recess 12c at the shoulder of the stepped recess 12a.
Orifice 422 of second port 421 that constitutes
One end is open. Furthermore, the stepped recess 12
A part of a drainage passage 46, which will be described later, is opened in the ring-shaped recess 12c in the shoulder section a. This drainage passage 4
6 is a thick waterway 461 and a thin waterway 4 following the bottom end of the thick waterway 461
62, and a rubber ball 463 constituting a valve is held at the lower end of this thick water channel 461. Normally, this rubber ball 463 closes the upper end of the narrow water channel 462 due to gravity. The rubber ball 463 has a shape as shown in FIG. 3, and burrs are likely to form on the mold mating portion 463a.
To prevent this burr from hitting the seat portion 462a of the waterway 462, the rubber ball 463 is attached to the seat portion 462a of the waterway 462.
A guide portion 463b protrudes downward so that it is always seated below the mold matching portion 463a with respect to a.
has.

The first cylinder device 2 has a first cylinder 21 and a first piston 22 as main components.

The first cylinder 21 has a cylindrical shape and penetrates the lower side wall of the water tank 1, is fixed with a locking tool 211, and is sealed watertight with an O-ring 212. The rear end of the first cylinder 21 is inserted into the circular stepped recess 12a formed inside the tank chamber 1a, and is fixed watertightly with an O-ring 121.

A spring seat 213 that also serves as a cylindrical guide is inserted into the tip of the first cylinder 21 and fixed with a ring-shaped fixture 214 .

The first piston 22 has a small central through hole 22a at the center of the inside, and has a cylindrical shape with concave portions at both ends.
A ring-shaped groove is formed on its outer peripheral surface, and a seal ring 221 is held therein. The first piston 22 is inserted into the first cylinder chamber 216 of the first cylinder 21 in the axial direction, and is slidably inserted in the seal ring 221 in a substantially watertight manner.
Further, the first piston 22 is connected to the spring seat 213 described above.
The rear end is biased by a spring 222 held in a compressed state between the front end of the first piston 22 and the front end of the first piston 22 . A rubber seal 223 is held and fixed to a stopper 224 on the inner peripheral surface of the rear end recess of the first piston 22 . This rubber seal 223 slides on the outer peripheral surface of the central tube 23.

The second cylinder device 3 includes a second cylinder 31 and a second piston 32. The second cylinder 31 has a cylindrical shape, and its rear end is inserted into a recess at the tip of the first piston 22 and fixed coaxially thereto.

The second piston 32 is inserted into a cylindrical rear end portion 322 having a central hole 321 and a recess on the front end side of this rear end portion 322 and is coaxially fixed therein.
It consists of a tubular cylinder part 327 having a diameter of 6. Rear end 3
Two ring-shaped grooves are formed on the outer peripheral surface of 22, into which a seal ring 323 is inserted. This second piston 32 is connected to the second piston 32 of the second cylinder 31.
It is slidably mounted within the cylinder chamber 316. A spring 312 is inserted in a compressed state between the ring-shaped tip surface of the rear end 322 of the second piston 32 and the spring seat 311 inserted inside the tip of the second cylinder 31, and the spring 312 is inserted in a compressed state to move the second piston 32 toward the rear end. is energized. This spring seat 311 is fixed with a fixture 313. Note that the cylindrical portion 327 of the second piston 32
The lower side circumferential wall of the tip of the cylinder part 32 is cut off.
A step 327a is formed in the lower middle of 7.
The fixture 313 has a through hole with a shape equivalent to a circular cross-sectional shape with a portion of the distal end of the cylindrical portion 327 missing;
The cylindrical portion 327 slides along this through hole, and the cylindrical portion 3
27 has the role of preventing rotation.

Two ejection ports 327b are formed upwardly at the tip of the cylindrical portion 327 of the second piston 32, and a constant pressure valve 33 is incorporated in the shaft hole 326 of the cylindrical portion 327 leading to the ejection ports 327b. . This constant pressure valve 33 is always urged toward the rear end by a spring 331.

The pressure water supply/drainage device 4 is connected to the first port 411
The first water supply passage 41 and the second port 421 connected to
a second water supply passage 42 connected to the water tank 1; a supply water passage 43 and a drainage passage 4 communicating with the outflow hole 1b of the water tank 1;
6 is the main component. The first water supply passage 41 is provided with a solenoid valve V1 and a throttle valve 412 in parallel. Further, the second water supply passage 42 is provided with a solenoid valve V2. The second water supply passage 42 includes a second port 421 and an orifice 422 connected to the second port 421. In addition, the supply waterway 43, the first water supply passage 41, the second water supply passage 4
A 3-port 2-way switching valve 451 having ports 451a, 451b, and 451c is provided between the 2-drain passage 46 and the drain port 45, and the port 451a has ports 451a, 451b, and 451c so that water is supplied to the supply channel 43 from the outlet 1b. When the water pressure in port 451b is higher than that in port 451b, the water pressure causes port 451a to communicate with port 451b and port 451c.
If the water pressure of the port 451b is higher than the water pressure of the port 451a, the port 451b communicates with the port 451c and switches out of communication with the port 451a. The port 451a is connected to the supply waterway 43 and the port 4
51b is connected to the first water supply passage 41, second water supply passage 42 and drainage passage 46, and port 451c is connected to the drainage port 4.
5 is always in communication.

An electric circuit for driving the solenoid valves V1, V2 and pump 44 of this device is shown in FIG. This electric circuit connects solenoid valves V1, V2 and a pump 44 in parallel to a power supply E, a first switch S1 is connected between the power supply E and the solenoid valve V1, and a second switch S2 is connected between the power supply E and the solenoid valve V2. It has been established. In addition, the first
The switch S1 and the second switch S2 are connected switches, and have a structure in which both switches S1 and S2 cannot be turned on at the same time. Pump 44 supplies water from sealed tank 50 to inlet 1c.

The cleaning device of this embodiment has the above configuration.

Next, the operation of this cleaning device will be explained.

The state of this cleaning device before use is as shown in FIG. 1, and its electrical wiring and switches are as shown in FIG. 2. First, the operation of the anus cleaning using this cleaning device will be explained.

Close (turn on) the first switch S1 by hand.
When the first switch S1 is turned on, current flows from the power source E to the solenoid valve V1 and the pump 44 through the first switch S1. When current flows through the pump 44, the pump 44 is activated, and the water in the tank chamber 1a of the tank 1 passes through the outlet 1b and enters the supply waterway 4.
3. Here, since current is flowing through the power supply valve V1, the solenoid valve V1 is open. Therefore, water flows from the solenoid valve V1 of the first water pressure waterway 41 to the first
into the port 411, through the central pipe 23, and into the second
It flows into the shaft hole 326 of the cylindrical portion 327 of the piston 32. Therefore, the water in the shaft hole 326 is removed from the rear end 322.
The flow is reversed through the central hole 321 of the second cylinder chamber 316.
flows into. Note that the rubber seal 223 allows the second
The space between the cylinder chamber 316 and the first cylinder chamber 216 is sealed, and water does not flow into the first cylinder chamber 216. The water that has flowed into the second cylinder chamber 316 is
The water pressure drives the second piston 32 in the distal direction (upper left direction in FIG. 1). The cylindrical portion 327 of this second piston 32 is guided by the fixture 313,
It is driven in the distal direction with the ejection hole 327b facing upward. Therefore, the water pressure of the water flowing into the shaft hole 326 does not increase and the constant pressure valve 33 remains closed. Then, the rear end portion 32 of the second piston 32
2 comes into contact with the tip of the spring seat 311, and the movement of the second piston 32 stops. When the second piston 32 stops, the water pressure inside the second cylinder chamber 316 and the shaft hole 326 increases, and the water pressure is applied to the spring 331 of the constant pressure valve 33.
The constant pressure valve 33 is opened by overcoming the urging force.
The water in the shaft hole 326 is then ejected from the ejection hole 327b of the cylindrical portion 327 of the second piston 32.

This first water supply passage 41 is not provided with a portion that causes large water supply resistance, such as the orifice 422 of the second water supply passage 42.
A relatively large amount of pressurized water flows into the hole 327b, and therefore a relatively large amount of strong jet water is ejected from the ejection hole 327b. This relatively large amount of strong water jet cleanses the anus.

When the first switch S1 is turned off in this state, the pump 44 is stopped and the solenoid valve V1 is closed. Second cylinder chamber 316 and shaft hole 326
The water inside the spring 31 that biases the second piston 32
2 in the rear end direction (upper right direction in FIG. 1). Therefore, the water in the second cylinder chamber 316 and the shaft hole 326 flows backward through the central pipe 23, flows backward through the first port 411, passes through the throttle valve 412 provided in parallel with the solenoid valve V1, and then flows through the switching valve V1. valve 4
51 and is drained from the outlet 45. Finally, the state shown in FIG. 1 is reached.

In this way, the shaft hole 326 and the second cylinder chamber 3
16 can flow back through the pressure water supply/drainage device 4, so that the second piston 32 becomes the first piston in a relatively short period of time.
The state returns to the state shown in the figure.

Next, let's talk about bidet cleaning.

When the second switch S2 is closed (turned on), the pump 44 operates, the solenoid valve V2 opens, and the tank chamber 1
Water in a flows through the supply waterway 43, the solenoid valve V2 of the second water supply passage 42, the second port 421, and the orifice 422, and directly flows into the ring-shaped recess 12c constituting the first cylinder chamber 216. As a result, the first piston 22 is driven in the distal direction (upper left direction in FIG. 1).

On the other hand, the water sent by the pump 44 is fed to the tank chamber 1.
a, through the outlet 1b, the supply waterway 43, and the throttle valve 412 of the first water supply passage 41, and the first port 41.
1. It passes through the central pipe 23 and also flows into the second cylinder chamber 316. As a result, the second piston 32 is similarly driven in the water flow direction. Then, the first piston 22 moves in the distal direction, comes into contact with the distal end of the spring seat 213 fixed to the distal end of the first cylinder 21, and stops. Further, the second piston 32 is similarly driven in the distal direction, and the rear end portion 322 is driven toward the spring seat 3.
11, and the second piston 32 also stops. In this state, the pressure of the pressure water flowing through the first water supply passage 41 causes the spring 3 of the constant pressure valve 33 to
31, the water in the shaft hole 326 is ejected as a jet of water from the ejection hole 327b provided at the tip of the cylindrical portion 327 of the second piston 32.
Note that since the water sent through the first water supply passage 41 passes through the throttle valve 412 of the first water supply passage 41, the flow rate of water is relatively small. Therefore, the amount of jet water jetted out from the jet hole 327b is relatively small, and jet water suitable for cleaning the bidet is jetted out.

When the cleaning is completed and the second switch S2 is opened, the pump 44 is stopped and the solenoid valve V2 is closed. As a result, the water in the pressure water supply/drainage device 4 flows out from the outlet 45, so that the water pressure decreases. The water in the first cylinder chamber 216 and the second cylinder chamber 316 is
It is urged by the first piston 22 and the second piston 32 to maintain a constant water pressure. Therefore, the water pressure in the pressure water supply/drainage device 4 is reduced to the first cylinder chamber 2.
16, the water pressure in the second cylinder chamber 316 becomes lower. As a result, the water in the second cylinder chamber 316 and the shaft hole 326 is removed from the first port 4 as described above.
11 and the throttle valve 412, passes through the switching valve 451, and is discharged from the discharge port 45. This results in
The piston 32 moves toward the rear end. On the other hand, the water in the first cylinder chamber 216 pushes up the ball valve 463 of the drainage passage 46 to open the valve and
2. Reverse flow through the thick waterway 461 and the switching valve 45
1 and flows out from the discharge port 45. As a result, the first piston 22 also moves to the rear end in a relatively short time and returns to the state shown in FIG. 1.

Note that if there is no drainage passage 46, the water in the first cylinder chamber 216 cannot flow out to the discharge port 45 because the solenoid valve V2 of the pressure water supply/drainage device 4 is closed. Therefore, the water in the first cylinder chamber 216 is
Since it flows out little by little from the sliding parts of the cylinder 21 and the first piston 22, it takes time for the first piston 22 to return. In addition, since the water that drives the first piston 22 through the second water supply passage 42 is appropriately throttled to pass through the orifice 422, the water pressure will not become too high, and therefore no water leakage will occur. Therefore, the forward movement of the first piston 22 is not hindered. In addition, when the configuration is such that water from the water mains is directly supplied to the inlet 1c of the water tank 1,
Instead of the pump 44, it may be supplied via a solenoid valve.

[Brief explanation of drawings]

Fig. 1 is an overall sectional view of the main parts of the human body private parts cleaning device shown in the example, Fig. 2 is an electric circuit diagram used in the device of Fig. 1, and Fig. 3 is an explanation showing the installation state of the ball valve in detail. It is a diagram. 1... Water tank, 2... First cylinder device, 3
...Second cylinder device, 22...First piston,
32...Second piston, 4...Pressure water supply/drainage device, 41...First water supply passage, 42...Second water supply passage, 45...Discharge port, 327...Cylinder part (nozzle), 411... ...first port, 421...second port, 422...orifice, 46...drainage passage, 463...rubber ball valve (one-way valve).

Claims (1)

[Claims] 1. A first cylinder forming a first cylinder chamber;
a second cylinder inserted into the first cylinder chamber to form a second cylinder chamber; a nozzle inserted into the second cylinder chamber and having an internal passageway and a jet hole formed at the tip for spouting cleaning water; a second water supply passage provided with an orifice for supplying pressurized water to the first cylinder chamber during bidet cleaning; and a first water supply passage for supplying pressurized water to the second cylinder chamber during bidet cleaning or anal cleaning. a first piston that is provided at the rear end of the second cylinder and extends toward the tip when water is fed from the second water passage; and a first piston that is provided at the rear end of the nozzle and extends by water that is fed from the first water passage. A human body private parts cleaning device including a second piston extending in the distal direction, and a pressure water supply/drainage device that supplies pressurized water to the first water supply passage and the second water supply passage and discharges water to the drain port, The pressurized water supply/drainage device is provided with a drainage passageway parallel to the second water supply passageway, one end of which communicates with the first cylinder chamber, and the drainage passageway has a one-way valve that allows only drainage. A device for cleaning human body parts. 2. The human body private part cleaning device according to claim 1, wherein the one-way valve is a ball valve.