JPH05302350A - Cleaning device and cleaning nozzle thereof - Google Patents

Abstract

PURPOSE:To make it possible to select a spray pattern from a nozzle in conformity to what is required with regards to a cleaning device designed to clean the local parts of a human body and a cleaning nozzle thereof. CONSTITUTION:This cleaning device provides a water quantity variable means 15, a main nozzle 18 and a sub-nozzle 19 which has a spray cross section different from the main nozzle 18, a cleaning nozzle which allows the sub-nozzle 19 to be on/off controlled in conformity with the pressure of water to be supplied and a first water force setting means which supplies a signal to the water quantity variable means 15 and sets the water force of cleaning water to be sprayed from the cleaning nozzle 17 in several stages and a second water force setting means 22 which sets stronger water force than the strongest water force available in the first water force setting means 21 and opens the sub-nozzle 19. When the first water force setting means 21 is selected, the cleaning water is sprayed only from the main nozzle 18 and the water force can be controlled in several stages. When the second water force setting means is selected, the cleaning water is sprayed from both the main and sub-nozzles are the cleaning pattern can be changed as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device used for sanitary cleaning toilet seats and the like for cleaning a human body part, and a cleaning nozzle suitable for the device.

[0002]

2. Description of the Related Art Conventionally, as this type of cleaning apparatus for cleaning a human body, a cleaning nozzle having a single or a plurality of nozzle holes is used to spray hot water to intensively clean a local area.
Alternatively, as shown in FIG. 5 and FIG. 6, there is one that can use a fluid oscillation element having a feedback channel to perform a relatively wide range of cleaning by the water spraying effect.

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 containing a cleaning device, and a cleaning nozzle 7 protruding into the toilet bowl 1 for cleaning a local part of a human body 6 are provided. It is provided. FIG. 6 shows the structure of the cleaning nozzle 7. 8 is a supply path for washing water, 9 is a jet outlet, 10 and 1
Reference numeral 1 is an adhesion wall, and 12 and 13 are feedback channels.

In the above structure, cleaning water is attached to the wall 1 for example.
When attached to the 0 side and jetted out to the arrow A side, the washing water flows into the feedback channel 12 side, pressure is applied to the washing water jetted to the arrow A side from the side surface, and the running water is moved to the attachment wall 11 side. Eject from B side. By repeating this state, the self-oscillation state occurs. As a result, a cleaning effect and a water spraying effect can be obtained even with a relatively small amount of water.

[0005]

In the conventional cleaning device as described above, it is possible to intensively wash each of them or to wash the local periphery in a dispersed manner, but it is not possible to use both of them according to preference. There was a problem called.

That is, since this type of cleaning device has a plurality of users, a comfortable cleaning mode differs depending on sex, age, individual difference, physical condition and the like. Therefore, the water pressure is generally variable, but the water pressure is adjusted in the same pattern, so that the desired comfortable cleaning form may not always be obtained. Particularly in the case of local washing of women, there is a difference in the washing form required for normal hygiene during the period of menstruation and that required for ordinary washing, and improvement is desired.

The present invention is intended to solve the above problems,
It is a first object of the present invention to provide a cleaning device capable of selectively switching concentrated or dispersed cleaning of a human body local part according to preference by controlling the cleaning water pressure supplied to the cleaning nozzle. A second object is to provide a cleaning nozzle suitable for this cleaning device and having a simple structure.

[0008]

In order to achieve the above first object, the cleaning apparatus of the present invention comprises a water amount varying means and a main nozzle opening and a sub nozzle opening having a jetting section different from that of the main nozzle opening. A washing nozzle whose opening and closing is controlled according to the supplied water pressure is provided, and a plurality of stages of water force signals are supplied to the water amount varying means, and washing water ejected from the main nozzle opening of the washing nozzle. A control circuit having a first hydraulic force setting means for setting the hydraulic force in a plurality of stages and a second hydraulic force setting means for setting a stronger hydraulic force than the strongest hydraulic force in the first hydraulic force setting means and opening the sub nozzle opening. Is provided.

In order to achieve the second object, the cleaning nozzle of the present invention comprises a cylinder having a supply port communicating with a water supply passage, a main nozzle port communicating with the supply port and a downstream side of the supply port. A valve member provided and a flange portion that projects in the radial direction and is slidably held by the inner peripheral surface of the cylinder, and a communication hole provided in the flange portion, and a shaft that corresponds to the water pressure in the supply port. A movable nozzle body that is movable in any direction, a sub-nozzle opening that is opened through a communication port provided in the flange portion when the movable nozzle body moves, and has a jetting cross section different from that of the main nozzle; and the movable nozzle body. Is composed of an elastic member for urging the valve in the valve closing direction and a stopper for restricting the amount of movement of the movable nozzle body in the axial direction.

[0010]

With the above-described structure, the cleaning apparatus of the present invention intensively cleans a human body part by spraying cleaning water only from the main nozzle opening when the first water force setting means is selected. Further, the water pressure can be adjusted in a plurality of stages according to preference (for example, when the internal pressure of the cleaning nozzle is P, P _{1 to} P ₃ ).

On the other hand, when the second water pressure setting means is selected, the water amount varying means is controlled so that the water pressure P _S is stronger than the strongest water pressure P _{3 of} the first water pressure setting means, and water is supplied to the cleaning nozzle. It Since the water supply pressure at this time is higher than the adjustment range in the first water force setting means, the sub nozzle opening opens,
The cleaning water will be ejected from both the main and sub nozzle openings.
The cleaning can be performed with a jetting pattern different from that when the first water force setting means is selected.

If the second water pressure setting means is stopped, the cleaning pattern of the first water pressure setting means is automatically restored.

The cleaning nozzle of the present invention has a predetermined water pressure range.
Surround P₁~ P₃Valve member is closed by elastic member
The cleaning water is jetted from the main nozzle opening only,
Water force P that is larger than the water pressure range_SWhen applied,
The movable nozzle body moves against the valve closing force of the elastic member to open the valve.
As a result, the cleaning water is also jetted from the sub nozzle opening. This
At this time, cleaning water is spouted from both the main and sub nozzle openings, so
Water pressure P in the specified supply port _SThe nozzle cross-sectional area
Therefore, the pressure loss is reduced and the water pressure in the supply port is reduced.
However, the action of the elastic member causes the movable nozzle body to move in the valve closing direction.
Although it receives the moving force, it is
Water pressure also acts on the flange located inside the flow channel
As the pressure receiving area increases, the water pressure inside the supply port will increase.
Even if it is lowered, the state that the valve is opened against the valve closing force of the elastic member
Retained. As a result, the ejection speed from the main nozzle port is instantaneous.
Although it increases over time, it does not reach the specified ejection velocity,
It stabilizes at a jet speed that does not hurt when it comes into contact.

[0014]

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

FIG. 1 is a configuration diagram of a cleaning apparatus showing an embodiment of the present invention, FIGS. 2A and 2B are sectional views showing an embodiment of a cleaning nozzle, FIG. 3 is a top view thereof, and FIG. FIG. 4 is a characteristic diagram showing a relationship between a water force setting scale and water pressure in a cleaning nozzle.

In the figure, 14 is a water supply passage for sending water for local cleaning, 15 is water amount varying means composed of an electric pump or water amount control valve, 16 is heating means for heating cleaning water, 17 Is a cleaning nozzle having a structure to be described in detail later, and has a main nozzle opening 18 and a sub nozzle opening 19 having an ejection cross section different from that of the main nozzle opening 18, and the opening / closing control of the sub nozzle opening 19 is performed according to the supplied water pressure. It has the structure described below. Reference numeral 20 is a control circuit for controlling the water amount varying means 15, which is a first water force setting means 21 for setting the water force of the washing water ejected from the main nozzle opening 18 of the washing nozzle 17 in a plurality of stages.
And a second water force setting means 22 for setting a stronger water force than the strongest water force in the first water force setting means 21 to open the sub nozzle port 19 and first and second drive switches 23 provided in each. 24, and a switching means 25 that operates when the second drive switch 24 is turned on and that supplies the signal of the second water pressure setting means 22 to the water amount varying means 15.

2 (a), 2 (b) and 3 show a structural view and a top view of the cleaning nozzle 17, and 26 is the water supply passage 1.
4 is a cylinder having a supply port 27 communicating with 4, and 28 is a movable nozzle body, and a valve member 29 provided on the downstream side of the main nozzle port 18 communicating with the supply port 27 and the supply port 14 and protruding in the radial direction, the cylinder 26. Has a flange portion 31 slidably held by the inner peripheral surface 30 and a communication hole 32 provided in the flange portion 31, and is configured to be movable in the axial direction according to the water pressure in the supply port 27. ing. Reference numeral 19 is a sub-nozzle opening that is opened through a communication opening 32 provided in the flange portion 31 when the movable nozzle body 28 moves, and has an ejection cross section different from that of the main nozzle 18. Reference numeral 33 is a stopper that restricts the amount of movement of the movable nozzle body 28 in the axial direction and prevents the auxiliary nozzle port 19 from being blocked, and 34 is interposed between the flange portion 31 and one end surface of the cylinder 26 in the axial direction. It is an elastic member that urges the movable nozzle body 28 in the valve closing direction. The urging force of the elastic member 34 is such that the water pressure in the supply port 27 becomes the water pressure set by the second water force setting means 22 in the state of FIG. 2A, that is, in the state where the valve member 29 is closed. It is set to start opening the valve at that time. That is, in FIG. 4, the water pressure at the supply port 27 is set within the water pressure range set by the first water pressure setting means 21, and the nozzle inner pressure P ₁
To P _3, also when the water force set by the second water force setting means 22 and P _S, the fluid from the main nozzle inlet 18 is equivalent pressure receiving area of the fluid pressure acting on the inner wall of the nozzle of the the A ₁ when ejected The urging force F _S of the elastic member 34 is F _S ≈P _S · A ₁ .

In the above structure, the operation of this embodiment will be described below.
The operation will be described. Switching means 2 during cleaning
5, the first water force setting means 21 is selected, and when any one of the first drive switches 23 is selected, the first water force setting means 21 operates, and the main nozzle opening 18 is operated by the strong / medium / weak water force. The washing water is ejected from only the
The cleaning pattern C of (a) intensively cleans the human body part. If desired, the nozzle internal pressure P ₁ shown in FIG.
The water force can be adjusted in multiple steps within the range of to P ₃ .

On the other hand, when the switching means 25 selects the second water force setting means 22 and the second drive switch 24 selects the second water force setting means 22, the strongest water force in the first water force setting means 21. , The water pressure P _S stronger than the nozzle internal pressure P ₃
The water amount varying means 15 is controlled so that the water is supplied to the cleaning nozzle 17. Since the water supply pressure at this time is higher than the adjustment range of the first water force setting means 21, the movable nozzle body 28 moves in the axial direction against the urging force of the elastic member 34, as shown in FIG.
As shown in (b), it abuts on the stopper 33 and is fixed at a predetermined position. The valve member 29 is opened by the movement of the movable nozzle body 28, the fluid passes through the communication port 32 and is also ejected from the sub nozzle port 19, the cleaning patterns C and D are combined, and the human body part is dispersed in a wide range. To be washed.

The jet speed of the jet from the main nozzle opening 18 increases momentarily when the second hydraulic force setting means 22 is selected, but when the sub nozzle opening 19 is opened, the supply port 27 is opened.
The predetermined flow of water supplied from the main nozzle port 18 side Q ₁
Since the flow is diverted to the side Q ₂ of the sub-nozzle port 19, the flow rate is reduced, and jets at a flow velocity that does not hurt when contacting the human body part.

Further, in the state of FIG. 2 (a), the supply port 27
When the valve is opened by the water pressure P _S of and the auxiliary nozzle port 19 is opened,
In the state shown in FIG. 2 (b) is reduced pressure loss for the nozzle opening cross-sectional area is increased for a given flow rate, water pressure of the supply port 27 is lower than P _S. As a result, the movable nozzle body 28 is returned in the valve closing direction by the action of the elastic member 34, but since the fluid pressure also acts on the flange portion 31 existing in the flow path of the sub nozzle opening 19, the movable nozzle body 28 is returned in the valve closing direction. The force applied is canceled and the valve open state is maintained.

That is, the sub-nozzle port 19 is opened.
The water pressure drop at the supply port 27 due to
The equivalent pressure receiving area of the fluid pressure acting on the inner wall of the nozzle of No. 8 is A
₁, The fluid pressure receiving area of the flange 31 is A₂, This time again
The biasing force of the elastic member 34 of _SThen F_S= (P_S−
ΔP) (A₁+ A₂) Movable nozzle due to force balance by
The position of 28 is decided.

When the second water pressure setting means 22 is stopped, the cleaning pattern in the first water pressure setting means 21 is automatically restored, and the second drive switch 24 is turned ON / OFF to facilitate the cleaning mode. Can be changed. The switching means 25
Automation can also be realized by automatically switching at a predetermined interval.

[0024]

As described above, the cleaning apparatus of the present invention is provided with the first hydraulic force setting means for setting the hydraulic force of the cleaning nozzle in a plurality of stages, and the hydraulic force stronger than the strongest water pressure in the first hydraulic force setting means. The second water force setting means for setting the above is provided, and the cleaning nozzle whose opening / closing of the sub nozzle opening is controlled according to the supplied water force is provided. The following effects can be obtained. (1) It is possible to use the simple structure of providing the second water flow setting means to adjust the water flow of the cleaning water and selectively use the cleaning jet pattern such as concentration or dispersion according to the preference.
It is possible to expand the selection range of the comfortable cleaning mode according to gender, individual difference, physical condition, etc. in the human body local cleaning. (2) Since the ejection pattern can be changed by controlling the water pressure or the water pressure in the cleaning nozzle, the switching of the ejection pattern can be remotely controlled. This is suitable as a sanitary washing toilet seat cleaning device of this type that is delivered to a local position when in use and retracted into the device when not in use. In addition, since the water flow control uses the existing water amount varying means in combination, a special actuator member for pattern switching can be eliminated. (3) Since the nozzles capable of jetting with different cleaning patterns such as concentration and dispersion are integrally configured, the nozzle structure can be simplified and made compact. Further, the cleaning effect can be improved by combining the concentrated cleaning and the distributed cleaning. (4) In the cleaning nozzle, since the flow path is switched from the main nozzle opening only to the main nozzle opening and from both the main and sub nozzle openings, the nozzle pressure is increased even when the water pressure inside the nozzle is increased to switch from concentrated to distributed cleaning. The increase in the opening area of the nozzle can prevent the ejection speed from the nozzle from significantly increasing, and as a result, the feeling of cleaning can be improved.

[Brief description of drawings]

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

FIG. 2A is a cross-sectional view of the cleaning nozzle when ejecting from only a main nozzle opening, and FIG. 2B is a cross-sectional view of the cleaning nozzle when ejecting from both main and sub nozzle openings.

FIG. 3 is a top view of the cleaning nozzle.

FIG. 4 is a characteristic diagram showing a relationship between a water pressure setting scale and nozzle pressure.

FIG. 5 is a configuration diagram of a conventional cleaning device

FIG. 6 is a sectional view of the cleaning nozzle.

[Explanation of symbols]

 14 Water Supply Channel 15 Water Volume Changing Means 17 Washing Nozzle 18 Main Nozzle Port 19 Sub Nozzle Port 20 Control Circuit 21 First Water Force Setting Means 22 Second Water Force Setting Means 26 Cylinder 27 Supply Port 28 Movable Nozzle Body 29 Valve Member 31 Flange Part 32 Communication hole 33 Stopper 34 Elastic member

Claims (2)

[Claims] 1. A water supply passage, a water amount varying means, a main nozzle opening and a sub-nozzle opening having a jetting section different from that of the main nozzle opening, and the sub-nozzle opening is opened and closed according to the supplied water pressure. A cleaning nozzle to be controlled and a first hydraulic force setting means and a first hydraulic force setting means for supplying the hydraulic force signals of a plurality of stages to the water amount varying means and setting the hydraulic force of the cleaning water ejected from the cleaning nozzle in a plurality of stages. And a control circuit having a second water force setting means for opening the sub nozzle opening to set a stronger water force. 2. A cylinder having a supply port communicating with a water supply channel, a main nozzle port communicating with the supply port, a valve member provided on the downstream side of the supply port, and a radially projecting member, the inside of the cylinder. A movable nozzle body that has a flange portion slidably held by the peripheral surface, a communication hole provided in the flange portion, and is movable in the axial direction according to the water pressure in the supply port, and the movable nozzle body. By moving, a sub-nozzle port opened through the communication port provided in the flange portion and having a jetting cross section different from the main nozzle, an elastic member for urging the movable nozzle body in the valve closing direction, and the movable nozzle A cleaning nozzle composed of a stopper that regulates the amount of body movement in the axial direction.