JPH06257203A - Sanitary washing nozzle and sanitary mashing device - Google Patents

Abstract

PURPOSE:To cover a sanitary washing nozzle which washes a human body locally and a washing device which makes it possible to mix bubbles into washing water effectively and switch over properly bubble mixing washing. CONSTITUTION:Two spray nozzles 38 and 39 are installed to a nozzle element 25 communicated with a washing water supply means 15 in such a fashion that the sprayed water may be placed into contact and interfered with each other while an air mixing 30 means is installed thereto so that an opening end 32 of an air supply pipe 29 may be positioned in a water supply channel 24. Therefore, when bubbles are not mixed, a concentrated and continuous flow is avaliable while the air is forcibly mixed, thereby producing bubble-mixed swing washing or more particularly, since it is possible to select a washable shape over a wide area, washing pattern variable remote control is available. At the same time, it is possible to prevent the lack of uniformity as well.

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 and a washing device used for sanitary washing toilet seats and the like for washing a human body part after toilet, and particularly to forcibly mixing air bubbles into washing water. The present invention relates to a sanitary washing device of the type.

[0002]

2. Description of the Related Art As a cleaning device of this type for cleaning a human body, there is a cleaning device which sprays warm water from a cleaning nozzle having a single or a plurality of nozzle holes to intensively clean the local part. The jet flow is a continuous steady flow, and there is a case where the user feels uncomfortable because of strong sensation.
Therefore, the cleaning device disclosed in Japanese Patent Publication No. 58-13688 has been conventionally known as a device in which bubbles are mixed into the cleaning water to obtain a soft feeling. In this device, an air suction unit for mixing air is provided in the vicinity of the jet nozzle, and the amount of air mixed depends on the jet speed or the jet amount of cleaning water. Therefore, there is a limit to the amount of air that can be mixed.

For this reason, in recent years, a method has been proposed in which air is forcibly mixed into the wash water as shown in FIGS. In the figure, 1 is a toilet bowl, 2 is a sanitary washing toilet seat, and a toilet seat 3, a toilet lid 4, a main body 5 incorporating a cleaning device, and a cleaning nozzle 7 that is provided so as to project into the toilet bowl 1 and cleans a local part of a human body 6. Is provided. FIG. 6 shows the structure of the cleaning nozzle 7. Reference numeral 8 denotes a supply path for cleaning water, to which cleaning water mixed with air is supplied by an air pump 9 and an air supply means 10 provided on the upstream side. Reference numeral 11 is a nozzle cylinder, and 12 is a movable nozzle, which is configured to be pushed out to a local position by the water pressure of the washing water, and to jet the washing water from the nozzle hole 14 to the human body local portion through the water supply passage 13.

When the cleaning water mixed with air acts on the supply passage 8 in the above structure, the movable nozzle 12 is pushed out by the water pressure and stops at a local position, and the cleaning water containing bubbles is ejected from the nozzle hole 14. Human body parts are cleaned. As a result, a sufficient amount of mixed air can be obtained, and the amount of mixed air can be adjusted according to preference.

[0005]

However, the conventional cleaning apparatus as described above has a problem that it is not possible to properly use the bubble-containing cleaning and the continuous steady flow cleaning according to preference. That is, since this type of cleaning device has a plurality of users, a comfortable cleaning mode varies depending on sex, age, individual difference, physical condition, etc., and improvement is desired.

Further, since air is mixed in on the upstream side of the nozzle cylinder, individual bubbles interfere with each other in the process of passing through the nozzle cylinder and the movable nozzle, and the bubbles become nonuniform. That is, as shown in FIG. 6, the bubbles having a predetermined particle diameter that have flowed into the nozzle cylinder interfere with each other, and are separated into a gas phase and a liquid phase to change to a large diameter. As a result, when ejected from the nozzle hole, a popping sound of bubbles is generated,
When the jet contacted the human body part, the cleaning water was scattered and an unnecessary part was sometimes wetted.

Further, in this type of nozzle device in which the movable nozzle is driven back and forth by water pressure, when the water pressure is particularly low due to long-term use, the movable nozzle may be caught on the inner peripheral wall surface of the nozzle cylinder and may not advance to the human body local position. Yes, there was a case where cleaning became impossible.

The present invention is intended to solve the above problems,
A first object of the present invention is to provide a sanitary washing nozzle that can selectively use air bubble mixed washing and washing with a continuous steady flow according to the user's physical condition and taste.

The second object is to prevent the mixed air bubbles from becoming non-uniform, to obtain stable air bubble mixed cleaning water with less scattering of cleaning water and less popping noise of air bubbles, and an air pump of small capacity, That is, it is to provide a sanitary washing device capable of forcedly mixing air with a low discharge pressure.

A third object of the present invention is to provide a highly reliable sanitary cleaning device capable of stably advancing the movable nozzle even when the water pressure supplied to the nozzle is low in a cleaning device forcibly mixing bubbles of this type. It is to realize the device.

[0011]

In order to achieve the above-mentioned first object, the sanitary washing nozzle of the present invention jets washing water to a water supply body having a water supply passage communicating with the washing water supply means and a human body part. Nozzle element and an air mixing means for forcibly mixing air into the water supply passage, the nozzle element is the first and second nozzle chambers communicating with the water supply passage, and the first and second nozzle chambers A first jet outlet and a second jet outlet that communicate with each other, and a flow dividing wall that separates the first and second nozzle chambers from the jet jet emitted from the first jet orifice and the second jet orifice. The ejected jets are configured so as to contact and interfere with each other.

In order to achieve the second object, the sanitary washing device of the present invention has a nozzle cylinder and a water supply passage communicating with the washing water supply means, and the inside of the nozzle cylinder is driven by the water pressure of the supplied washing water. A movable water supply body configured to be able to move forward and backward, an elastic member for urging the movable water supply body in the backward direction, a nozzle element provided at the tip of the movable water supply body for ejecting washing water to a human body local part, and the water supply An air mixing unit for forcibly mixing air into the channel, the air mixing unit fixedly mounted so that the opening end is located at least in the water channel at the advanced position of the movable water supply body; And an air supply means for supplying air to the air supply pipe.

In order to achieve the third object, the sanitary washing device of the present invention has an outer peripheral portion of the air supply pipe, which is movable in the axial direction of the air supply pipe and closes the water supply passage of the movable water supply body. In addition to providing a movable plate that can be moved, a stopper that stops the movable plate is provided at a position that secures a flow path of washing water at the advanced position of the movable water supply body.

[0014]

According to the sanitary washing nozzle of the present invention, the first and second nozzle chambers are provided in the nozzle element to divert the washing water by the flow dividing wall, and the first and second nozzle chambers communicate with the respective nozzle chambers. The jets ejected from the second ejection hole are configured to interfere with each other, and an air mixing unit for forcibly mixing air into the wash water is provided, so if air is not mixed, it will be ejected separately from the first and second ejection holes. The washed water comes into contact with each other and merges into a concentrated continuous flow, which is ejected toward the human body part. Also, if air is forcibly mixed in, the cleaning water containing bubbles will spout simultaneously from the first and second spout holes, but the cleaning water spouting from each spout hole contains bubbles and is irregular. It becomes an intermittent flow. That is, the jetting force of the washing water jetted from each jet hole changes in strength and weakness, and the two washing jets come into contact with each other and interfere with each other. As a result, when air bubbles are not mixed, a concentrated continuous flow is obtained, and by virtue of forcibly mixing air, swing cleaning in which air bubbles are mixed, that is, a cleaning mode capable of wide-range cleaning can be selected.

Further, in the sanitary washing device according to the present invention, the nozzle element provided at the tip of the movable water supply body having the water supply passage can be moved forward and backward by the water pressure of the cleaning water, and the movable water supply body can be moved forward and backward. The air supply pipe is fixedly mounted so that the opening end is located in the water supply passage, and air is mixed in the process of passing through the water supply passage provided in the movable water supply body, that is, at the stage close to the nozzle element. There is no rapid expansion or contraction of the flow path of the wash water after mixing, and the water is discharged from the jet hole through the water supply channel before it is separated into the gas phase and the liquid phase. As a result, non-uniformity of air bubbles is prevented and bubbles with a stable particle size are generated.There is moderate irritation when ejected to the human body part, a soft cleaning feeling is obtained, and the bubble particle size does not increase. In addition, the popping noise of air bubbles at the time of ejection from the cleaning nozzle can be reduced, and the scattering of cleaning water can be reduced. Further, since the opening end of the air supply pipe is located in the water supply passage, air is mixed in with the flow velocity of the washing water passing therethrough increased, and the above-mentioned opening is caused by the ejector effect due to passage of the washing water. The end pressure can be reduced. This makes it possible to forcefully mix air with a small capacity air pump, that is, at a low discharge pressure.

Further, in the sanitary washing device according to the present invention, a movable plate is provided on the outer peripheral portion of the air supply pipe, the movable plate being movable in the axial direction of the air supply pipe and closing the water supply passage of the movable water supply body. Since the stopper for stopping the movable plate is provided at the position where the flow path of the wash water is secured at the advanced position of the movable water supply body, it is provided at the movable water supply body by the movable plate at the retracted position of the movable water supply body. The water supply passage is in a closed state, and when the water pressure acts in this state, the pressure receiving area of the water pressure acting on the end face of the movable water supply body increases in cross-section integral of the water supply passage, and the advancing output of the movable water supply body can be increased. In the advanced position, the movable plate is stopped by the stopper, the water supply passage is opened, and the wash water can pass therethrough. As a result, even when the water pressure supplied is low, the movable water supply body can be stably driven to advance, and reliability is improved.

[0017]

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

FIG. 1 is a sectional view of a sanitary washing device showing an embodiment of the present invention, FIGS. 2 and 3 are sectional views of a sanitary washing nozzle, and FIG. 4 is a sectional view taken along the line XX of FIG. is there. In the figure, 15 is a washing water supply means composed of a water pump 16 and a motor 17 which is a driving means of the water pump 16, and 18
Is a hot water tank for storing hot water heated by the electric heater 19, and 20 is a supply path for supplying wash water. Reference numeral 21 denotes a sanitary washing nozzle, which is located in a nozzle cylinder 23 having a water supply port 22 communicating with the supply passage 20 and is driven into the nozzle cylinder 23 by receiving the water pressure of the washing water, and is stopped at the human body local position to stop the water supply passage. Movable water supply body 26 for supplying the cleaning water coming from 24 to nozzle element 25 provided at the tip end, and air pump 27 as an air supply means.
And the cleaning water supply means 15 is stopped by the air mixing means 30 and the cleaning water supply means 15 which are composed of the air supply pipe 29 for forcibly mixing the compressed air generated by the motor 28 as the driving means with the cleaning water. It has an elastic member 31 that moves the movable water supply body 26 to the retracted position when stopped. In addition, the opening end 32 of the air supply pipe 29 is positioned so that the movable water supply body 26 is located in the water supply passage 24 with the nozzle element 25 advanced to the human body local position.
It is fixed by extending coaxially. A movable plate 33 is provided on the outer peripheral portion of the air supply pipe 29.
A stopper 34 is provided which cooperates with the forward / backward movement of 6 and is provided so as to be able to close the water supply passage 24, and stops the movable plate 33 at a position where a flow passage for washing water is secured at the advanced position of the movable water supply body 26. . Reference numeral 35 is a check valve that prevents the backflow of wash water from the air supply pipe 29 to the air pump 27 when the supply of air is stopped.

The nozzle element 25 is connected to the water supply passage 24 by the first and second nozzle chambers 36 and 37, respectively.
First and second ejection holes 3 communicating with each of 6 and 37
8, 39, and the flow dividing wall 40 separating the first and second nozzle chambers 36, 37, and the jet flow discharged from the first jet hole 38 and the jet flow discharged from the second jet hole 39 are mutually The nozzles are configured so as to be inclined at a predetermined angle so as to cause contact interference and eject.

Reference numeral 41 denotes a water supply control circuit for controlling the cleaning water. When the jet selection switch 42 selects the bubble-containing cleaning, the water pump 16 and the air pump 27 are driven to mix the bubbles in a predetermined ratio. First water supply control means 43 for supplying water to the nozzle element 25 and the jet flow selection switch 4
When the continuous flow cleaning in which air bubbles are not mixed is selected by 2, the driving of the air pump 27 is stopped and the rotation speed of the water pump 16 is increased so as to compensate for the deterioration of the feeling of cleaning due to the decrease of the air amount. It is composed of a second water supply control means 44 for increasing the flow rate of the wash water.

Next, in the above-mentioned structure, the operation of this embodiment,
The operation will be described. When the bubble mixing cleaning is selected by the jet flow selection switch 42, the first water supply control means 43
The motors 17 and 28 start to rotate by the water, and the wash water is supplied from the water pump 16 to the nozzle cylinder 22 through the hot water tank 18, and the water pressure of the wash water moves to the movable water supply body 26.
Acting on the end surface of the elastic member 31 starts to move forward against the force of the elastic member 31.

Here, the operation of the movable plate 33 will be described. When the movable water supply body 26 is in the retracted state as shown in FIG. 3, the movable plate 33 contacts the end surface of the movable water supply body 26 and moves the water supply passage 24 to the retracted position in the closed state. When the wash water is supplied from the water supply port 22, the water pressure is movable.
The movable water supply body 26 is moved forward by acting on the end surface of 6 and the movable plate 33. The force for moving the water supply body 26 is proportional to the water pressure and the pressure receiving area on which the water pressure acts. When the movable plate 33 does not exist, the wash water flows into the water supply passage 24 at the same time as it flows in, so that the cross-sectional area of the water supply passage 24 does not act effectively as a pressure receiving area and the advancing output of the movable water supply body 26 decreases. In the present embodiment, as shown in FIG.
Since 4 is closed, the pressure receiving area shown by the hatched portion S can be increased, and the advance output can be improved. As a result, the reliability of the movable water supply body 26 against catching is improved. The movable water supply body 26 is likely to be caught at the beginning of the movement, and once the movement starts, the movable water supply body 26 can advance relatively smoothly.

When the movable water supply body 26 advances due to water pressure and reaches the human body local position, it abuts on the stopper 34 and the movable plate 33 stops, and as shown in FIG. 1, the water supply passage 24 is opened and washing water is supplied to the water supply passage. Pass 24. On the other hand, the water pump 16
The air pump 27 also operates at the same time that the check valve 3
5. The compressed air is mixed into the cleaning water from the opening end 32 at a predetermined ratio through the air supply pipe 29, and the cleaning water containing the bubbles flows into the nozzle element 25. At this time, since air is mixed in the process of passing through the water supply passage 24, that is, at a stage close to the nozzle element 25, there is no sudden expansion or contraction of the flow path of the wash water after mixing with air, and before separation into a gas phase and a liquid phase Then, the water is discharged from the jet holes through the water supply passage 24, and the nonuniformity of the air bubbles is prevented, and the air bubbles having a stable particle diameter are supplied. Water supply channel 2
The flow rate of the wash water passing around the air supply pipe 29 in 4 is increased, and air can be mixed in under a state where the pressure at the open end 32 of the air supply pipe 29 is low due to the ejector effect due to the passage of the wash water. This makes it possible to forcefully mix air with a small capacity air pump, that is, at a low discharge pressure.

The wash water that has flowed into the nozzle element 25 is divided into the first and second nozzle chambers 36 and 37 by the flow dividing wall 40, and the first and second ejection holes 38 and 39 that communicate with each other.
At the same time, cleaning water containing bubbles is jetted out. At this time, the cleaning water ejected from each ejection hole contains air bubbles and becomes an irregular intermittent flow. That is, the jetting force of the wash water jetted from each jet hole changes in intensity, and the jetting water shows the amplitude Wn in FIG. As a result, the cleaning jet is obtained in which the bubbles are mixed and the rocking is swung in a wide range. Further, as described above, since the non-uniformity of the bubbles is prevented and the bubbles having a stable particle size can be supplied, there is moderate irritation when ejected to the human body part, a soft cleaning feeling is obtained, and the bubble particle size does not increase. In addition, the popping noise of the bubbles at the time of jetting from the nozzle element 25 can be reduced, and the scattering of cleaning water can be reduced.

Next, when the jet flow selection switch 42 selects the cleaning by the continuous flow in which air bubbles are not mixed, the second water supply control means 44 stops the driving of the air pump 27 and the air amount decreases. The number of rotations of the water pump 16 is increased so as to compensate for the lowered feeling of washing, and the flow rate of washing water is increased. That is, the flow rate ejected from the nozzle element 25 in the air bubble cleaning is the sum of the amount of water and the amount of air,
Since the flow rate is set so that a predetermined cleaning feeling can be obtained when it comes into contact with the human body part, the actual flow rate decreases when the air supply is stopped, and the cleaning feeling deteriorates. Therefore, when the cleaning in which bubbles are not mixed is selected, it is necessary to increase the flow rate of the cleaning water. The increased cleaning water is supplied to the nozzle cylinder 22 and the water supply passage 2.
4 into the nozzle element 25, and each of the ejection holes 38,
Eject from 39 at the same time. The washing water jetted separately comes into contact with each other and merges, and since it is a continuous flow in which no bubbles are mixed, it becomes a concentrated jet as shown in FIG. 2 and is jetted toward the human body part.

If the bubble-containing rocking cleaning and the cleaning by the concentrated continuous flow are automatically and alternately repeated, the user's monotonous feeling is eliminated and the massage effect of the portion to be cleaned is obtained. .

As described above, according to this embodiment, since the nozzle element 25 is provided with the two ejection holes 38 and 39 so as to be in contact with each other, and the air mixing means 30 for forcibly mixing the air is provided. When air bubbles are not mixed, a concentrated continuous flow is obtained, and by forcibly mixing air, swing cleaning in which air bubbles are mixed, that is, a cleaning mode capable of wide-range cleaning can be selected. This makes it possible to remotely control variable cleaning patterns, and
The configuration can be simplified.

Further, since air is mixed in the process of passing through the water supply passage 24 provided in the movable water supply body 26, there is no sudden expansion or contraction of the flow path of the washing water after mixing with air, and there is no gas phase or liquid phase. Before being separated, the water is discharged from the ejection holes 38, 39 through the water supply passage 24, so that the non-uniformity of the bubbles is prevented, and the bubbles having a stable particle size are generated, so that the bubbles are ejected from the nozzle element 25. The popping sound of bubbles can be reduced, and the scattering of cleaning water can be reduced. Further, since the opening end 32 of the air supply pipe 29 is provided in the water supply passage 24, air is mixed in with the flow velocity of the wash water passing therethrough being increased, and the ejector effect by the passage of the wash water is achieved. This can reduce the pressure at the open end. As a result, the capacity of the air pump 29 can be reduced, that is, the air can be forcibly mixed at a low discharge pressure.

Further, since the movable plate 33 capable of closing the water supply passage 24 is provided on the outer peripheral portion of the air supply pipe 29 so as to be interlocked with the movable water supply body 26, the advance output of the movable water supply body 26 can be increased. , The reliability for nozzle advancement is improved.

[0030]

As described in detail in the above embodiments, in the sanitary washing nozzle of the present invention, the nozzle element is provided with two ejection holes so that they can contact and interfere with each other, and the air mixing means for forcibly mixing the air is provided. Therefore, when air bubbles are not mixed, a concentrated continuous flow can be obtained, and by virtue of forcedly mixing air, it is possible to select a cleaning mode capable of rocking cleaning in which air bubbles are mixed, that is, cleaning in a wide range. As a result, the cleaning pattern can be selected only by controlling the mixing of air, the cleaning pattern can be controlled remotely, and the configuration can be simplified.

Further, since air is mixed in the process of passing through the water supply passage provided in the movable water supply body, there is no rapid expansion or contraction of the flow path of the washing water after the air mixing, and before the separation into the gas phase and the liquid phase. Since it is discharged from the ejection hole through the water supply passage to the nozzle, non-uniformity of the bubbles is prevented, and bubbles having a stable particle size are generated, and the popping noise of the bubbles at the time of ejection from the nozzle element is reduced, Further, it is possible to reduce the scattering of washing water. Further, since the opening end of the air supply pipe is located in the water supply passage, air is mixed in with the flow velocity of the washing water passing therethrough increased, and the above-mentioned opening is caused by the ejector effect due to passage of the washing water. The end pressure can be reduced. This makes it possible to reduce the capacity of the air pump, that is, to force the air to be mixed in at a low discharge pressure.

Further, since a movable plate capable of closing the water supply passage is provided on the outer peripheral portion of the air supply pipe so as to be interlocked with the movable water supply body,
Since the initial advance output of the movable water supply body can be increased, the reliability of the nozzle advance is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a sanitary washing device showing an embodiment of the present invention.

FIG. 2 is a sectional view of the sanitary washing nozzle.

FIG. 3 is a sectional view of the sanitary washing nozzle when the nozzle is retracted.

FIG. 4 is a sectional view taken along line XX in FIG.

FIG. 5 is a sectional view of a conventional cleaning device.

FIG. 6 is an enlarged sectional view of the cleaning nozzle.

[Explanation of symbols]

 15 Wash Water Supply Means 21 Sanitary Wash Nozzle 22 Water Supply Port 23 Nozzle Cylinder 24 Water Supply Channel 25 Nozzle Element 26 Movable Water Supply Body 27 Air Pump (Air Supply Means) 29 Air Supply Pipe 30 Air Mixing Means 31 Elastic Member 32 Open End 33 Movable Plate 34 Stopper 36 First Nozzle Chamber 37 Second Nozzle Chamber 38 First Jet Hole 39 Second Jet Hole 40 Dividing Wall

Claims (3)

[Claims] 1. A water supply body having a water supply passage communicating with the cleaning water supply means, a nozzle element provided at the tip of the water supply body for ejecting cleaning water, and an air mixing means for forcibly mixing air into the water supply passage. The first and second nozzle chambers that communicate with the water supply passage, the first and second ejection holes that communicate with each of the first and second nozzle chambers, and It has a flow dividing wall that separates the first and second nozzle chambers, and the jets discharged from the first jet hole and the jet jets discharged from the second jet hole are inclined at predetermined angles so that the jet jets contact and interfere with each other. A sanitary washing nozzle that is configured to eject. 2. A nozzle cylinder having a water supply port communicating with the cleaning water supply means, and a water supply channel communicating with the water supply port, wherein the water pressure of the supplied cleaning water allows the nozzle cylinder to move forward and backward. Movable water supply body, an elastic member for urging the movable water supply body in the backward direction, a nozzle element provided at the tip of the movable water supply body for ejecting washing water toward the human body part, and air to the water supply passage. An air supply pipe that is fixedly mounted in the nozzle cylinder so that the opening end is located at least in the water supply passage at the advancing position of the movable water supply body. A sanitary washing device comprising air supply means for supplying air to the air supply pipe. 3. A movable plate, which is movable in the axial direction of the air supply pipe, is provided on the outer peripheral portion of the air supply pipe in cooperation with the forward / backward movement of the movable water supply body, and the water supply passage of the movable water supply body can be closed. The sanitary washing device according to claim 2, further comprising a stopper for stopping the movable plate at a position where a passage for the washing water is secured at an advanced position of the movable water supply body.