JPH0219256B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cleaning nozzle for a sanitary cleaning device for cleaning private parts of the human body with hot water or the like.

Conventional configuration and its problems A cleaning nozzle that has been publicly known in the prior art has the configuration shown in FIG. 1. That is, the nozzle body 2 is slidably inserted into the nozzle cylinder 1, and the nozzle body 2 is always urged toward the inside of the nozzle cylinder 1 by the spring 3. 4
is a cap screw that restricts the sliding movement of the nozzle body 2, and has a stopper pin 5. 6 is a water supply mouthpiece that feeds water into the nozzle cylinder 1. A seal member 7 provides a water seal between the nozzle body 2 and the nozzle cylinder 1. A jet port 8 is provided at one end of the nozzle body 2, and a piston portion 9 is provided at the other end. The inside is a water passage 10, and a water stop valve 12 is provided at a position facing the throttle hole 11 of the piston part 9.
3, the hemispherical head 1 of the water stop valve 12
4 is pressed against a conical wall 15 extending from the aperture hole 11.

In this configuration, when water pressure is applied to the water supply cap 6, water pressure is applied to the piston portion 9 of the nozzle body 2, and the nozzle body 2 slides within the nozzle cylinder 1 against the repulsive force of the spring 3 and protrudes. While the nozzle main body 2 is moving, the hemispherical head of the water stop valve 12 is pressed against the conical wall 15 extending into the throttle hole 11 by the action of the spring 13, preventing water from flowing into the water passage 10. This prevents the cleaning water from being discharged from the spout 8 while the nozzle body 2 is moving. Nozzle body 2 protrudes and stopper pin 5
When it hits, the nozzle body 2 stops sliding.
The water pressure increases and the water stop valve 12 is pushed open, water is supplied to the water passageway 10, and washing water is sprayed from the spout 8, so that the user's private parts are also washed.

When the application of water pressure to the water supply cap 6 is stopped, first,
After the water stop valve 12 closes the throttle hole 11, the nozzle body 2 is housed in the nozzle cylinder 1.

The purpose of the water stop valve 12 described above is to
This prevents cleaning water from being discharged from the spout 18 when the nozzle body 2 is extended or stored, that is, while the nozzle body 2 is moving, thereby preventing parts of the human body that are not desired to be wetted outside the cleaning area from getting wet. However, in the configuration of this conventional example, the dimensional accuracy and coaxiality of the conical wall 15 extending from the aperture hole 11 and the hemispherical head 14 are indispensable. Unless high precision is required, the above objectives cannot be achieved. However, in this conventional example, the head 14 of the water stop valve 12 is in a relatively free state, and it is very difficult to increase the degree of coaxiality with the conical wall 15, resulting in water stop wetting in actual use. There was a risk that the cleaning water would spray out while the nozzle was moving and wet unnecessary parts such as the user's clothes.

In addition, in the conventional type, the water stop valve 12 has a complicated structure and is made of metal parts, so it is unreliable and prone to failure due to water scale accumulation, material corrosion, spring fatigue, etc. It was hot.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional example, and provides a means for preventing discharge of cleaning water during movement in a telescopic nozzle using water pressure, which is simple in construction, does not require high precision, and is highly reliable. The purpose is to provide.

Structure of the Invention In order to achieve the above-mentioned object, the cleaning nozzle of the present invention is provided with an orifice in the passageway in the nozzle body whose throttle amount changes depending on the water pressure to prevent the cleaning water from spouting out while the nozzle is moving. .

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a schematic cross-sectional view of one embodiment of the cleaning nozzle, showing the cleaning water spraying state. 16 is a nozzle cylinder, 17 is a nozzle main body, and the nozzle main body 17 receives force in the direction inside the nozzle cylinder 16 by a spring 18, and when it is not receiving water pressure, the nozzle main body 17 is inside the nozzle cylinder 16. Completely stored. Nozzle cylinder 1
6 has a cylindrical shape, and the pressure receiving surface 1 of the nozzle body 17
9 is also circular and has a dimension slightly smaller than the inner diameter of the nozzle cylinder 16. The part of the nozzle body 17 other than the part having the pressure receiving surface part 19 and the packing 20 has a hexagonal shape as shown in FIG. It is slidably fitted to the nozzle rotation stopper 21, and rotation of the nozzle body 17 is restricted.

The nozzle rotation stopper 21 and the nozzle cylinder 16 are sealed against water by a gasket 22, and the gasket 20 comes into contact with the end 24 of the cylindrical portion 23 where the nozzle rotation stopper 21 is inserted into the nozzle cylinder 16. Due to this, the rotation stopper 21 and the nozzle body 17 are
is sealed with water.

25 is a water supply part to the nozzle cylinder 16;
A pipe from a cleaning water supply means (not shown) is connected to the piping connection part 26 as shown by a broken line. The water supply section 25 is water-tightly sealed from the nozzle cylinder 16 by a gasket 27, and has a water passage 28 inside thereof to guide the wash water from the wash water supply means into the nozzle cylinder 16. The nozzle body 17 has a water passage 29 inside, and a spout 30 on the protruding side.
have. An orifice 31 made of flexible rubber is inserted into the inlet of the water passageway 29 on the opposite side.

Reference numeral 32 denotes a ring-shaped lid body whose inner diameter is smaller than the inner diameter of the water passage 29, and is press-fitted into the pressure receiving surface portion 19 of the nozzle body 17. The orifice 31 made of flexible rubber has a substantially cylindrical portion 33 as shown in FIG.
The cross-sectional area perpendicular to the longitudinal axis is approximately constant in the substantially cylindrical portion 33;
4, it gradually decreased. End portion 3 of the beak portion 34
No. 5 is open, but when no force is applied, it is almost closed due to the elasticity of the rubber. Even if it is open, it is very small.

The orifice 31 is made of rubber and is simply inserted into the passageway of the nozzle body 17, and does not require much precision.

FIG. 4 is an external view of a sanitary washing device incorporating the washing nozzle of this embodiment, showing a state in which washing water is spouted from the washing nozzle.

17 is a nozzle body of a cleaning nozzle, 36 is a toilet bowl, 37 is a toilet seat on which a user sits, and 38 is a toilet lid. Reference numeral 39 is a main body case containing a washing water supply means, etc., and 40 is a washing operation knob.
The other knobs are for temperature adjustment and power on/off, and are not directly related to the present invention, so their explanation will be omitted.

Hereinafter, the effects of the above configuration will be explained.

When the user sits on the toilet seat 37 and operates the cleaning operation knob to clean his/her private parts, the cleaning water supply means is activated to send the cleaning water to the cleaning nozzle. The cleaning water enters the nozzle cylinder 16 through the water passage 28 of the water supply section 25 and applies pressure to the pressure receiving surface section 19 of the nozzle body 17. Since there is a clearance between the outer diameter of the pressure receiving surface part 19 and the inner diameter of the nozzle cylinder 16, the cleaning water flows between the nozzle body 17 and the rotation stopper 2.
Water leaks from between the holes 1 and 17 and is discharged to the outside through the nozzle body 17. As a result, the outer surface of the nozzle body 17 is cleaned and kept clean at all times.
On the other hand, the nozzle body 17 receives the force and moves to the right in FIG. 2 against the load of the spring 18. While the nozzle body 17 is moving, the volume inside the nozzle cylinder 16 expands, so the increase in pressure inside the nozzle cylinder 16 is small. Due to pressure loss, the water pressure applied to the orifice 31 is very low. Therefore, while the nozzle body 17 is moving, the end portion 35 is moved by the elastic force of the substantially beak portion 34 of the orifice 31.
is almost closed, blocking water flow to the water passage 29 of the nozzle body 17. Even if there is a leak,
There is very little injection from the jet nozzle 30. Therefore, due to the jetting of cleaning water while the nozzle body 17 is moving,
There will be no leakage of parts outside of the specified range.

FIG. 5 shows a schematic cross-section of the sanitary cleaning device in use, and a broken line 41 indicates the jetting of cleaning water when the sanitary cleaning device is in use. In this case, the area other than the area to be cleaned is leaking, and as it moves, the area that gets wet becomes extremely wide, causing extreme discomfort to the user and causing the user's clothes to get wet. However, according to this embodiment, such a problem does not occur.

Further, the nozzle body 17 moves forward and the gasket 20
When pressed against the end 24 of the cylindrical portion 23 of the rotation stopper 21, water is sealed between the nozzle body 17 and the rotation stopper 21, and the movement of the nozzle body 17 is stopped.
Water leakage between the nozzle body and the rotation stopper stops. At this time, the jet nozzle 30 of the nozzle body 17 is set at a predetermined position, and at the same time, the internal pressure within the nozzle cylinder 16 rises rapidly, and a large water pressure is applied to the orifice 31. The beak of the orifice 31, which had been closed until then, cannot resist the pressure and is pushed open as shown in FIG. 6, sending cleaning water to the water passage 29 of the nozzle body 17. The opening amount changes depending on the water pressure, and the higher the pressure, the larger the opening amount. Therefore, the washing water is sprayed from the spout 30 set at a predetermined position to wash the private parts 42 of the user. Since the nozzle body 17 and the rotation stopper 21 are fitted in a hexagonal shape, the nozzle body 17 does not rotate, and exactly the designated area is cleaned.

When the user turns the cleaning operation knob to "off" after cleaning, the cleaning water supply means stops and the pressure inside the nozzle cylinder 16 suddenly decreases. At the same time, the nozzle body 17 is pushed back by the action of the spring 18, and water begins to leak between the nozzle body 17 and the rotation stopper 21. At the same time as the pressure inside the nozzle cylinder 16 suddenly decreases, the pressure on the orifice 31 also decreases, and the elastic force of the beak 34 closes the end 35, returning to the original state as shown in FIG. Water supply to 29 will be stopped. The water in the nozzle cylinder 16 cleans the surface of the nozzle body due to water leakage between the nozzle body 17 and the rotation stopper 21 . Even if the water spouted from the spout 30 is hot, it is very small and does not hit the human body. Thereafter, the nozzle body 17 is completely housed within the nozzle cylinder 16. If the orifice 31 is not provided, even when the nozzle body 17 returns, the water in the nozzle cylinder 16 will be removed from the discharge port 3 by the action of the piston.
From 0, it is pushed out, and like when it is pushed out, it wets unnecessary parts of the human body.

In this way, according to this embodiment, the very simple rubber orifice 33 can stop the jetting of cleaning water when the nozzle expands and contracts, without wetting unnecessary parts of the user. It becomes possible to wash comfortably. Does not require precision like conventional methods,
Because it uses the elasticity of rubber, it operates reliably and is extremely reliable.

In addition, the opening amount of the orifice 33 changes depending on the water pressure, and the higher the water pressure, the larger the opening amount.
There is little pressure loss, and there is little effect on the amount of washing water.

Effects of the Invention According to the present invention, the following effects can be obtained.

(1) With a very simple configuration, it is possible to prevent the spraying of cleaning water when the nozzle body expands and contracts, and it is possible to clean only the areas that the user wants to clean without getting the unnecessary areas wet.

(2) Since the opening and closing of the orifice utilizes its elasticity, it operates reliably and is not affected by water quality, etc.

(3) It does not require the same precision as conventional methods and has a small number of parts, so it is highly reliable and inexpensive.

(4) The opening amount changes depending on the water pressure, and the higher the water pressure, the larger the opening amount, resulting in less pressure loss and less impact on the amount of washing water.

[Brief explanation of drawings]

Figure 1 is a sectional view of a conventional cleaning nozzle, Figure 2a
is a sectional view of a cleaning nozzle showing an embodiment of the present invention,
Fig. 2b is a front view in the X direction of Fig. 2a, Fig. 3a is a perspective view when the orifice is not under pressure,
FIG. 3b is a sectional view thereof, FIG. 4 is a perspective view of a sanitary cleaning device incorporating the cleaning nozzle of this embodiment, FIG. 5 is a schematic sectional view of the sanitary cleaning device in use, and FIG. 6 a
6 is a sectional view when subjected to pressure from an orifice, and FIG. 6b is a perspective view. 16... Nozzle cylinder, 17... Nozzle body, 18... Spring, 20... Packing, 2
1... Rotation stopper, 25... Water supply section, 31... Orifice, 32... Lid body.

Claims (1)

[Claims] 1 comprising a nozzle cylinder, a nozzle body that slides within the nozzle cylinder, a spring that biases the nozzle body in a direction to accommodate the nozzle body in the nozzle cylinder, and a water supply section provided at one end of the nozzle cylinder, The nozzle body has a water passage inside and a spout at the end opposite to the water supply part, and the water passage is provided with an orifice whose throttle amount changes depending on the water pressure, and the orifice is flexible. The sanitary cleaning device is made of rubber and is integrally constructed of a substantially cylindrical portion and a substantially beak portion that is connected to the substantially cylindrical portion and has an internal passageway whose cross-sectional area gradually decreases, and whose cross-sectional area becomes zero or very small at the end. Equipment cleaning nozzle.