JP2970469B2 - Sanitary washing nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing nozzle used in a sanitary washing apparatus for washing a local part of a human body, and more particularly to a sanitary washing nozzle in which air is mixed into washing water. .

[0002]

2. Description of the Related Art After stool use, air bubbles are mixed into washing water to perform washing with a soft feeling.
A sanitary washing device disclosed in Japanese Patent No. 9688 is conventionally known.

FIG. 7 shows a sectional view of a conventional sanitary washing nozzle of this kind. In the figure, the present nozzle 1 is a first nozzle 2
And a nozzle body 3 having an inner diameter of about 1 mm.
The hot water injected from the nozzle 2 passes through the cavity 4 provided in the nozzle body 3, and the direction of the water flow is bent by about 90 degrees on the way, and is injected from the injection port 5 toward the local area. The air suction port 7 is provided in the vicinity of the jet port 6, so that the hot water sucks air and the hot water mixed with bubbles is jetted from the jet port 5 having a diameter of 2 to 2.5 mm. become.

[0004] With this configuration, it is possible to perform cleaning at a position suitable for each of the anal cleaning and the bidet cleaning, and the cleaning effect is reduced by applying the cleaning water containing such bubbles to the local area. It was possible to save water without pain, reduce pain and scattering, and obtain a comfortable bodily sensation.

[0005]

However, in the above-described configuration, since no diffuser is provided, the air suction force is weak, and a sufficient soft feeling cannot be obtained in cleaning a delicate portion of a female local portion. There was a problem that.

In addition, since there is a single jet port and the diameter thereof is large, air bubbles interfere with each other in the washing water after jetting, so that there is a problem that a refreshing washing feeling like a shower cannot be obtained.

[0007]

The present invention, such conventional problems solves the air effectively sufficient softness at the bidet by causing the suction is obtained. In addition each independently from a plurality of ejection ports
Shower without turbulence of water flow by squirting water flow
Cleaning nozzle with high detergency and a refreshing feeling like
It is intended to provide .

[0009]

[0010]

[0011]

Sanitary cleaning nozzle of the present invention in order to achieve the above object In order to achieve the above, a washing nozzle including a plurality of ejection ports, around the Ejeku data to improve the flow rate the Eje <br/> Kuta Air suction means comprising a plurality of air intake ports provided in the , and an air mixing means formed by a diffuser and a mixing pipe parallel portion provided between the air suction means and the washing nozzle , Vertical section thickness tn and injection
The value of the ratio ds / tn to the diameter ds of the outlet is set to 0.2 <ds / t.
n <0.35 .

[0012]

[0013]

[0014]

According to the sanitary washing nozzle of the present invention, air is sucked by the ejector and a plurality of air intakes provided around the ejector, and air is mixed with the washing water by the mixing pipe parallel portion and the diffuser. Yes , Edgy
The cleaning water whose flow velocity has been increased by the
Is efficiently mixed and discharged from the washing nozzle.
Become. As a result, air bubbles having a uniform and fine particle size are generated.
This is especially true when erupting into the human body.
To stimulate delicate female localities during de-washing
Provides a moderate and soft cleaning experience without any problems. Also gushing
The ratio between the vertical cross-sectional thickness tn of the mouth and the diameter ds of the ejection port is determined by a plurality of
High rectification in the direction of flow velocity of the water jet spouted from the spout
Since it has been set to a predetermined value,
Is an independent jet without disturbing the water flow due to jet interference.
In such a state, the human body part is cleaned. As a result,
Exhilarating and high detergency is obtained . "

[0015]

[0016]

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of a nozzle portion of a sanitary washing device according to an embodiment of the present invention, in which washing water passing through a water supply passage 8 is discharged from a jet port 10 of a washing nozzle 9 provided at one end to a human body part. Sprays washing water toward. Numeral 11 denotes an air suction means comprising an ejector 12 for increasing the flow rate of the washing water, and an air intake 13 for sucking air, and 14 is formed by a mixing pipe parallel part 15 and a diffuser 16 for mixing the sucked air with the washing water. Air mixing means.

FIG. 2 shows a sectional area S of the ejector outlet.₁Mixed with
Sectional area S of parallel part of joint pipe_TwoArea ratio S with _Two/ S₁And air suction
This shows the relationship with the lead ratio R. S_Two/ S₁Is empty
1.75 <S with high air suction rate R_Two/ S₁<2
It is set to a range that satisfies.

FIG. 3 shows the ratio L ₁ between the inner diameter d ₂ of the mixing tube parallel part and the distance L ₁ from the ejector outlet to the mixing tube parallel part inlet.
₂ shows the relationship between / d ₂ and the air suction rate R.
The value of L ₁ / d ₂ is high air suction rate R 1.53 <L ₁ / d ₂
The range is set so as to satisfy the condition of <3.

FIG. 4 shows the inner diameter d ₂ and the length L _{2 of the} parallel portion of the mixing tube.
The relationship between the ratio L ₂ / d ₂ and the air suction rate R is shown. The value of L ₂ / d ₂ is 7 <L ₂ / d _{2 where the} air suction rate R is high.
The range is set so as to satisfy the condition of <8.

FIG. 5 shows the relationship between the ratio ds / tn of the vertical sectional thickness tn of the jet port to the diameter ds of the jet port and the jet interference rate F. Here, the jet interference rate F is defined as the ratio of the flow diameters of a plurality of jets jetting within the respective flow diameters at the height of the washing position. The value of ds / tn is set in a range that satisfies the condition of 0.2 <ds / tn <0.35 at which the jet interference rate decreases.

In the above configuration, the operation of this embodiment will now be described.
The effect will be described. The flow rate of the washing water flowing into the water supply passage 8 is increased by the ejector 12, and the air suctioned from the air inlet 13 mixes the air. Here, the value of the area ratio between the cross-sectional area S ₁ of the ejector outlet and the cross-sectional area S ₂ of the parallel portion of the mixing pipe is 1.75 <S ₂ / S _{1 where the} air suction rate R is higher than that in FIG.
<2, and the ratio of the distance L ₁ from the ejector to the inlet of the mixing pipe parallel part and the inner diameter d ₂ of the mixing pipe parallel part is also 1.53 <L ₁ / d ₂ <3 for the same reason. the value of the ratio of the inner diameter d ₂ and a length L ₂ of the mixing tube parallel portions are also set to be a 7 <L ₂ / d ₂ <8 for the same reason. Therefore, the sucked air is efficiently mixed with the washing water in the mixing tube parallel portion 15. The cleaning water mixed with air is discharged from the jet port 10 through the cleaning nozzle 9 while gradually recovering the pressure in the diffuser section. As a result, air bubbles having a uniform and fine particle size are generated, and when squirting into a local part of the human body, especially when washing the bidet, it does not stimulate a delicate female part and has a moderately clean feeling and a very soft feeling. It is possible to carry out a washing that gives a natural feeling.
In addition, since the bubble particle size does not increase, the sound of the bubbles popping out at the time of ejection from the ejection port 10 is reduced, and the scattering of the washing water to portions other than the local portion can be reduced.

The value of the ratio between the vertical cross-sectional thickness tn of the jet port and the diameter ds of the jet port is set so as to be 0.2 <ds / tn <0.35 at which the jet interference rate becomes low in FIG. ing. Therefore, the washing water discharged from the plurality of jet ports 10 reaches the local human body without disturbing the water flow due to the jet flow interference. As a result, an independent water flow is formed, so that refreshing and cleansing power can be improved like a shower, and scattering of the cleansing water before reaching the local part can be reduced.

As described above, according to the present embodiment, the air is sucked by the air suction means 11 comprising the ejector 12 and the air inlet 13, and the mixing pipe parallel portion 15 and the diffuser 1 are sucked.
The cleaning water is efficiently mixed in the air mixing means 14 composed of 6 and supplied to the cleaning nozzle before being separated into a gas phase and a liquid phase. As a result, air bubbles having a uniform and fine particle size are generated, and when squirting into a local part of the human body, especially when washing the bidet, it does not stimulate a delicate female part and has a moderately clean feeling and a very soft feeling. It is possible to carry out a washing that gives a natural feeling. In addition, since the bubble particle size does not increase, the sound of the bubbles popping out of the ejection port 10 is reduced, and the scattering of the washing water to portions other than the local portion can be reduced.

Further, since the cleaning water discharged from the plurality of jet ports 10 is set so as to reach the local part of the human body without disturbing the water flow due to the jet flow interference, an independent water flow is formed, and it is refreshing like a shower. In addition, it is possible to perform cleaning with high detergency and to reduce scattering of cleaning water before reaching the local part.

FIG. 6 is a block diagram of a sanitary washing apparatus showing another embodiment of the present invention. In the drawing, reference numeral 17 denotes a cleaning water supply means comprising a pump 18 and a motor 19 as a driving means thereof, 20 denotes a hot water tank for storing hot water heated by an electric heater 21, and 22 denotes a supply for supplying cleaning water. Road. Reference numeral 23 denotes a nozzle unit,
Nozzle cylinder 24 communicating with nozzle 2 and nozzle cylinder 2
4, the water is driven forward by receiving the water pressure of the cleaning water, stops at the position of the human body part, and sends the cleaning water that has passed through the water supply channel 8 from the ejection port 10 of the cleaning nozzle 9 provided at one end toward the human body part. It is composed of a movable nozzle body 25 for jetting the washing water. Reference numeral 26 denotes an elastic member.
Is stopped and the supply of the washing water is stopped, the movable nozzle body 25 is moved to the retracted position. Since the configuration inside the cleaning nozzle 9 is the same as in FIG. 1, the same reference numerals are given and the detailed description is omitted.

In the above configuration, the operation of this embodiment will be described next.
The effect will be described. When the motor 19 is rotated by the washing water request signal, the washing water is supplied to the hot water tank 20 by the pump 18.
Is supplied to the nozzle cylinder 24. The washing water flowing into the supply passage 8 from the nozzle cylinder 24 is supplied to the ejector 1
2 sharply narrows the flow path. Therefore, the internal pressure of the nozzle cylinder 24 increases, and the water pressure acts on the end face of the movable nozzle body 22 to move forward against the force of the elastic member 26. The movable nozzle body 25 stops when it reaches the local position of the human body. When the washing is completed and the washing water supply means is stopped and the washing water is no longer supplied, the internal pressure of the nozzle cylinder 24 decreases, and the movable nozzle body 25 is retracted by the force of the elastic member 26 and stored in the nozzle cylinder. You.

As described above, according to the present embodiment, the provision of the ejector 12 increases the internal pressure of the cylinder and enhances the pushing force, so that it is possible to prevent a nozzle advance defect and to use an elastic member having a high contraction force. . As a result, the reliability of the nozzle advance / retreat driving is improved, and air can be effectively mixed.

[0030]

As described above in detail, the sanitary washing nozzle of the present invention sucks air by the ejector and the plurality of air intakes provided around the ejector , and provides the parallel portion of the mixing pipe and the diffuser. Since the predetermined value is set so as to enhance the performance, the flow rate of the washing water is increased by the ejector, and the air sucked from the air intake is efficiently mixed and discharged. As a result, air bubbles having a uniform and fine particle diameter are generated, and when squirted into a human body part, especially when washing the bidet, a moderate washing feeling and a soft feeling without stimulating a delicate female part. Can be obtained. In addition, since the bubble particle size does not increase, the sound of the bubbles popping out at the time of ejection from the ejection port can be reduced, and the scattering of the washing water to portions other than the local portion can be reduced.

Further, the vertical sectional thickness tn of the ejection port and the thickness of the ejection port
The ratio of the diameter ds to the water flow ejected from the multiple
Is set to a predetermined value that is independent of
The jet of cleaning water disturbs the water flow due to jet interference
Cleans the human body in independent water flow without any
It will be. As a result, it is as refreshing and clean as a shower
High-purity cleaning can be performed .

[0032]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an internal configuration of a sanitary washing nozzle showing one embodiment of the present invention.

FIG. 2 is a characteristic diagram showing a relationship between an area ratio S ₂ / S ₁ of a cross-sectional area S _{1 of an} ejector outlet and a cross-sectional area S ₂ of a mixing pipe parallel portion, and an air suction rate R.

FIG. 3 is a characteristic diagram showing a relationship between a ratio L ₁ / d ₂ of an inner diameter d ₂ of a mixing tube parallel portion and a distance L ₁ from an ejector outlet to a mixing tube parallel portion inlet, and an air suction rate R.

FIG. 4 shows the ratio L ₂ / L between the inner diameter d ₂ and the length L ₂ of the mixing tube parallel part.
Characteristic diagram showing the relationship between d ₂ and the air suction rate R

FIG. 5 is a characteristic diagram showing a relationship between a ratio ds / tn of a vertical cross-sectional thickness tn of the ejection port to a diameter ds of the ejection port and a jet interference rate F.

FIG. 6 is a configuration diagram of a sanitary washing device showing another embodiment of the present invention.

FIG. 7 is a configuration diagram of a conventional sanitary washing nozzle.

[Explanation of symbols]

 9 Cleaning nozzle 10 Spout port 11 Air suction means 12 Ejector 13 Air intake 14 Air mixing means 15 Mixing pipe parallel part 16 Diffuser 24 Nozzle cylinder 25 Movable nozzle body 26 Elastic member

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideki Ohno 1006 Oaza Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-7-34512 (JP, A) JP-A-58- 26142 (JP, A) JP-A 4-122292 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) E03D 9/00-9/16

Claims (4)

(57) [Claims] A cleaning nozzle comprising a plurality of jet ports; an air suction means comprising an ejector for improving a flow velocity; and a plurality of air intake ports provided around the ejector; and an air suction means including the air suction means and the cleaning nozzle. Ri Na <br/> from the air mixing means is formed by a mixing tube parallel portions and the diffuser which is provided between the diameter ds of the longitudinal section thickness tn and spout of the spout
Of the ratio ds / tn of 0.2 <ds / tn <0.35
Sanitary washing nozzle with range . 2. The value of the area ratio S2 / S1 between the cross-sectional area S1 of the ejector outlet and the cross-sectional area S2 of the mixing pipe parallel part is 1.7 <1.7.
2. The sanitary washing nozzle according to claim 1, wherein S2 / S1 <2. 3. The ratio L1 / d2 of the inner diameter d2 of the mixing pipe parallel part and the distance L1 from the ejector outlet to the mixing pipe parallel part inlet.
2. The value of (1) is in the range of 1.53 <L1 / d2 <3.
The sanitary washing nozzle as described. 4. The sanitary washing nozzle according to claim 1, wherein a value of a ratio L2 / d2 of an inner diameter d2 and a length L2 of the mixing tube parallel portion is in a range of 7 <L2 / d2 <8.