JP2905044B2 - Cleaning nozzle and sanitary cleaning device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing nozzle and a sanitary washing apparatus using the same, and more particularly, to a washing nozzle with improved washing water blowing and a sanitary washing apparatus using the nozzle to enhance the amount of washing. Related to the device.

[0002]

2. Description of the Related Art Hitherto, various sanitary washing devices have been proposed in which washing water is spouted toward a local part of a person sitting on a toilet seat to perform washing. Have been. Further, not only the sanitary washing device but also various washing nozzles used for washing have been proposed.

[0003] In such washing, it is desired that not only washing be sufficiently performed, but also a good feeling in use be obtained. The factors that determine the quality of use during cleaning are the strength of the momentum that the washing water is hitting the part to be washed (fluid feeling) and the spread of the area that the washing water is hitting (the feeling of volume). A good balance is desirable.

[0004]

However, in the conventional cleaning nozzles, the feeling of volume is often insufficient, and it has not yet been possible to obtain a comfortable cleaning feeling. Even if the pressure of the washing water to be pumped is increased in order to increase the volume of the cleaning water, only the water sensation of the washing water in a narrow range increases, and the volume does not increase. On the other hand, when the nozzle opening diameter is increased or the number of nozzle holes is increased to increase the total opening cross-sectional area of the nozzle to increase the sense of volume, the jetting speed of the washing water decreases, and the feeling of water drops. . In order to maintain the feeling of water, the amount of washing water must be increased, and the amount of water used increases.

[0005] The cleaning nozzle of the present invention has been made to solve such a plurality of contradictory problems, and to increase the volume of cleaning without causing a wasteful increase in the amount of cleaning water. In addition, a sanitary washing device using this washing nozzle,
The purpose of the present invention is to provide a comfortable washing feeling and to improve the user's feeling of use.

[0006]

SUMMARY OF THE INVENTION A cleaning nozzle described in the present application is a cleaning water pressure feed having a flow path for feeding the cleaning water.
A pipe, wherein the washing water sent into the flow path is
A cleaning nozzle that squirts from an opening provided in the pressure feeding pipe to perform cleaning, wherein the flow path of the cleaning water pressure feeding pipe is
The flow path of the washing water pressure feed pipe formed to the downstream area of the opening
In the vicinity of the opening,
The gist of the present invention is that the cross-sectional area is smaller than the flow path .

Further, the sanitary washing device described in the present application is a sanitary washing device for performing washing by spraying washing water toward a local part of a person sitting on a toilet seat, wherein the washing nozzle and the washing nozzle are provided. Moving means between the retracted position and the cleaning position, supplying cleaning water at an appropriate temperature to the cleaning nozzles, cleaning water supplying means, cleaning start instructing means for instructing the start of cleaning, and start of the cleaning When the instruction is received, the nozzle moving means is driven, the cleaning nozzle is moved to the cleaning position, and the cleaning water supply means is used, and the cleaning water is ejected from the cleaning nozzle using the cleaning water supplying means. The gist is that it is provided.

[0008]

The washing nozzle according to the present invention having the above-described structure causes the washing water fed into the washing water pressure pipe to be jetted from the opening. At this time, since the cross-sectional area of the flow path in the vicinity of the opening is smaller than that of the flow path other than in the vicinity, the flow of water near the opening becomes faster,
It becomes turbulent. As a result, the cleaning water spouting from the opening is
At least a part of the mist is sprayed out. Therefore,
The area where the washing water is applied is widened, and a good volume feeling is obtained.
Moreover, there is no need to increase the amount of water without impairing the feeling of water.

Here, the wall thickness of the cleaning water pressure feed pipe is determined by the area around the opening.
In a predetermined range of the side, it is also desirable to be formed thinner than a portion other than the predetermined range . Send to the flow path of the cleaning water pressure pipe
The washing water that is introduced is formed with a thin wall of the washing water pressure pipe.
Spouted from the opening. Therefore, it is possible to freely design the shape of the cleaning water which is sprayed in the form of a mist without affecting the shape of the straight cleaning water blowing at the center. In addition, if the cross-sectional area of the flow path at the opening can be adjusted, the degree of spread of the jetted washing water can be changed, which is preferable.

On the other hand, in the sanitary washing apparatus described in the present application, when receiving an instruction to start washing by the washing start instructing means, the washing performing means drives the nozzle moving means and causes the washing nozzle having the above-described structure to operate. The cleaning water is ejected from the cleaning nozzle by moving to the cleaning position and using the cleaning water supply means. As a result, the washing water having both a feeling of volume and a feeling of water can be spouted toward the local part of the person sitting on the toilet seat, and washing is performed while giving a good feeling of washing without causing an increase in the amount of wasted water. be able to. The cleaning water supply means may supply the cleaning water by pressure using the supply pressure of the tap water as it is, or may be realized by providing a pressurizing means or the like in the apparatus. In order to keep the washing water at an appropriate temperature, the supplied washing water may be heated by a heating means such as a heater, or the washing water may be stored in a tank and heated to an appropriate temperature by a heater or the like. In addition, since the concept of a suitable temperature depends on a user's preference, it may be used without any heating.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, preferred embodiments of the present invention will be described below. FIG. 1 is a cross-sectional view showing a structure in the vicinity of a jet nozzle of a cleaning nozzle according to an embodiment of the present invention, FIG. 2 is an external view of a sanitary cleaning device incorporating the cleaning nozzle, and FIG. FIG.

First, for ease of understanding, the overall configuration of the sanitary washing device 20 will be described with reference to FIGS.
As shown in the figure, the sanitary washing device 20
1, a main body 22 containing a device for heating cleaning water or blowing out hot air, a cleaning nozzle 24 for blowing cleaning water to a local area, and an operation panel 25 for performing operations. It comprises an operation unit 26 and the like. In the embodiment, the toilet seat 28 and the lid 29 of the toilet bowl are
2 is attached to open and close freely.

[0013] external water source is Ru Tei plumbed to the wash water tank 30 for storing washing water flow to the toilet 21, the middle of the branch fitting 32 (see FIG. 4), via a connecting pipe 33, the sanitary washing device 20 It is also plumbed and supplies water to it. As shown in FIG. 4, the sanitary washing device 20 includes a water supply adapter 34, a pressure reducing valve 36, a solenoid valve 38, and a safety valve 39 from the upstream side.
, A heat exchanger 43 for heating the supplied water to an appropriate temperature with a heater 42 while detecting the temperature of the supplied water with a temperature detector 41, and a float switch (SW) 44 for detecting a water discharge state 45, a flow control unit 50 including a flow control valve 48 driven by a flow control motor 47, and the like, and a nozzle unit 52 is attached to a tip of the flow control unit 50. The nozzle unit 52 includes the cleaning nozzle 24 and the cleaning nozzle 2.
4 comprises a nozzle motor 55 for driving the shaft 4 in the axial direction.

The general operation of each unit will be described.
The user sitting on the toilet seat 28 operates the operation panel 2 of the operation unit 26.
5 is operated, for example, to instruct cleaning after stool, electricity is supplied to the heater 42 and the electromagnetic valve 3 of the valve unit 40 is operated.
8 is opened, and the cold water in the pipe is discharged from the tip of the cleaning nozzle 24. Subsequently, the nozzle motor 55 is driven to advance the cleaning nozzle 24 to the cleaning position, and the ejection of the cleaning water is started. The temperature of the washing water jetted from the tip of the washing nozzle 24 is determined by the temperature detector 4 in the heat exchanger unit 45.
By the feedback control using No. 1, the temperature is controlled to a temperature suitable for local cleaning.

After completion of the cleaning, when the operation panel 25 is operated to instruct the end of the cleaning, the energization of the heater 42 is terminated, the electromagnetic valve 38 is closed, and the ejection of the cleaning water is terminated. And the cleaning nozzle 24 is retracted to the storage position.

The main body 22 of the sanitary washing device 20 includes:
A hot air blowing device 60 that blows out hot air for drying is provided. As shown in FIG. 5, the hot air blowing device 60 draws in intake air by a sirocco fan 64 rotated by a fan motor 62, heats the temperature of the blown air by a heater 65, and controls the temperature of the hot air by feedback control using a thermistor 66. The air is blown out to the user sitting on the toilet seat 28 through the hot air duct 70 and the fan cover 72 while maintaining the temperature (and ensuring the safety by the thermal fuse 68). The blowing of warm air by the warm air blowing device 60 is also performed by operating the operation panel 25 of the operation unit 26. It is also possible to adopt a configuration in which the hot air is automatically blown out after the above-described local cleaning.

Next, the structure of the cleaning nozzle 24 and its moving mechanism will be described in detail with reference to FIGS. FIG. 6 is a cross-sectional view showing a state where the cleaning nozzle 24 is broken in a vertical plane including the axis thereof, and FIG. 7 is an explanatory view of the vicinity of the drive mechanism 84 as viewed from the back. The cleaning nozzle 24 includes a casing 80 housed in a housing 81 of the main body 22.
It is disposed slidably obliquely downward and in the axial direction of the casing 80. This cleaning nozzle 24
When not in use, the opening 8 provided in the housing 81
2 is stored at a position where the front end thereof faces. Casing 80
A rotary drum 85 and a drive mechanism 84 that are rotated by a nozzle motor 55 are provided inside. The nozzle motor 55 is driven to move to a position A or a position B indicated by a two-dot chain line during use. . In addition,
Position A is a local cleaning position after stool and position B is a bidet cleaning position.

The operation of the cleaning nozzle 24 will be briefly described. A steel belt 86 is wound around a rotary drum 85 rotated by the nozzle motor 55, and one end of the steel belt 86 is fixed to the rotary drum 85 and the other end is fixed to a nozzle cylinder 87 of the cleaning nozzle 24. The rotating drum 85
As shown in FIG. 7, engagement pins 88 and 89 are provided on the side surface of the. The engagement pins 88 and 89 engage with the pin grooves 90 and 91 of the Geneva gear 92 provided to be swingable and rotatable in the casing 80 with the rotation of the rotary drum 85, and rotate the rotary drum 85. This is converted into intermittent movement (swing) of the Geneva gear 92. Further, the Geneva gear 92
An engagement pin 101 that engages with the connecting rod 93 is provided upright on the back surface of the connecting rod 93.
Are similarly engaged by an engagement pin 102. Since the connecting rod 93 further has a projection 95 slidably fitted in a groove (not shown) provided in the casing 80 in the axial direction of the nozzle cylinder 87, the Geneva gear 92 intermittently moves forward. When rotating in the reverse direction, the connecting rod 93 reciprocates, and as a result, the nozzle cylinder 87
Reciprocates in its axial direction.

The rotary drum 85 rotates with the rotation of the nozzle motor 55, and the nozzle tube 87 moves forward by the swing of the Geneva gear 92. However, the swing of the Geneva gear 92 stops and the advance of the nozzle tube 87 stops. Thereafter, when the rotating drum 85 further rotates, the steel belt 86 is further extended, and then the cleaning nozzle 24 advances. When the cleaning nozzle 24 reaches the position A or the position B shown in FIG. 6, the nozzle motor 55 is stopped. When the cleaning nozzle 24 is stored, the above-described process proceeds in the reverse order by reversing the nozzle motor 55.

Next, the flow of the washing water will be described. As shown in FIG. 6, the cleaning nozzle 24 includes a cylindrical outer cylinder 104 and a piston-shaped inner cylinder 105 loosely fitted to the outer cylinder 104. The inner cylinder 105 includes a body 105a made of a stainless steel pipe, a plug 105b fitted into the rear end of the body 105a to seal the same, and a nozzle 105 attached to the tip of the body 105a in a liquid-tight manner.
c. The stopper 105b includes a steel belt 86.
Is fixed at one end. Further, the outer shape of the nozzle portion 105c is formed slightly smaller than the outer shape of the body portion 105a. The outer cylinder 104 is provided with a large-diameter portion 104a having a large diameter near the front end thereof, and a pipe joint 106 for introducing hot water is attached thereto.

Cleaning nozzle 2 including shape of pipe joint 106
The appearance of No. 4 is shown in FIG. 8, which is a view of the cleaning nozzle 24 as viewed from the front. Due to the presence of the enlarged diameter portion 104a, the outer cylinder 10
4, a certain space is formed between the inner tube 105 and the inner tube 105, and this space functions as the hot water introduction port 107A. A supply pipe of hot water heated by the heat exchanger unit 45 installed in the main body 22 is connected to the pipe joint 106.
A packing 108 is fitted into each of the two ends in the enlarged diameter portion 104a.
When 5a is located here, the hot water introduction port 107A is liquid-tightly sealed.

As shown in FIG. 8, spray nozzles 110 and 111 are provided on the upper surface of the nozzle portion 105c near the tip of the cleaning nozzle 24 at predetermined intervals.
Each of the injection ports 110 and 111 is composed of three openings. The injection port 111 on the distal end side is for bidet cleaning, and the injection port 110 on the rear side is for anal cleaning. Due to the difference in usage, the cleaning water is not simultaneously injected from both the injection ports 110 and 111. The structure will be described. In the inner cylinder 105,
A water channel member 112 having a through hole in the axial direction is inserted, and the inside thereof has a two-layer structure. This waterway member 11
2 has a tip fitted inside the nozzle portion 105c,
Sealed by a ring. The rear end has a diameter substantially the same as the inner diameter of the body 105a.
05a and also sealed by an O-ring. Here, the hot water introduction port 107B is formed. A channel formed by the channel member 112 with its through hole and the hot water introduction port 107B is referred to as a first channel 113, and a channel formed between the channel member 112 and the body 105a of the inner cylinder 105 is defined as a second channel 114. Call. That is, the waterway member 112
Is inserted into the inner cylinder 105,
Two waterways, waterway 113 and second waterway 114,
It is formed. The washing water flows through these two channels and
It is pumped to 10,111. Further, a communication hole 113A is provided on the upper surface of the rear end of the body portion 105a, a few centimeters nozzle side from the position, and a side surface of the body portion 105a,
A communication hole 113B is provided. That is, the communication hole 113
A, on the other hand, the communication hole 113
B is provided for each of the second water passages 114.

When the electromagnetic valve 38 is opened and the heating by the heat exchanger unit 45 is started in response to the instruction to jet the washing water from the operation panel 25, the water staying in the water passage or the like is removed.
It flows into the hot water introduction port 107A from the pipe joint 106.
At this time, since the inner cylinder 105 is housed inside the outer cylinder 104, water flows out of the gap between the outer cylinder 104 and the nozzle portion 105c into the toilet. Eventually, when the nozzle motor 55 rotates forward and the steel belt 86 is fed, the nozzle tube 87 moves forward to a predetermined position, and only the inner tube 105 moves forward.

When the inner cylinder 105 reaches the local cleaning position A,
The communication hole 113B is located at the hot water introduction port 107A.
Therefore, the washing water heated to an appropriate temperature by the heat exchanger unit 45 is supplied from the pipe joint 106 to the hot water introduction port 107A,
After passing through the second water passage 114, it reaches the injection port 110, from which it is jetted toward the washing location. When the bidet cleaning is instructed, the inner cylinder 105 further advances to reach the bidet cleaning position B. In this case, the communication hole 113A is located at the hot water introduction port 107A. Therefore, the pipe joint 106
Hot water flowing from the hot water supply port 107A, 107
B, via the first water passage 113, reaches the injection port 111, from which it is jetted toward the washing location.

Returning to FIG. 1, the shape near the injection ports 110 and 111 will be described. As shown in FIG.
1 is merely provided with an opening as in the conventional case, but with respect to the injection port 110, the outer diameter of the water channel member 112 at a position facing the opening is increased, and a step 120 is formed. Due to the presence of the step 120, the second water flow
The flow velocity of the hot water flowing through the passage 114 is set at a position facing the opening.
In this case , the turbulent flow is higher than other positions, and turbulence occurs near the opening. As a result, the cleaning water spouting from the injection port 110 to the outside becomes a relatively straight water spout at the center of the opening, whereas it becomes a mist spout at the periphery of the opening. As a result, the amount of water spouted is substantially the same as in the past, but the volume can be significantly increased. In addition, the relatively flush water is discharged at the center of the jetted cleaning water, so that the feeling of water is not spoiled.

In addition, since no measures are taken to increase the number of openings for jetting or to increase the diameter, the flow rate of the washing water does not increase and the water resources are not wasted.
In addition, since it is not necessary to increase the number of openings, there is no increase in processing time.

As shown in FIG. 9, the form of the jetted cleaning water is determined by the size t1 of the gap at the injection port 110 and the thickness t2. Therefore, by adjusting both dimensions, it is possible to freely design the feeling of water and the feeling of volume. For example, as shown in FIG. 10, it is possible to form a thin portion 124 in which the thickness of the nozzle portion 105 c is reduced around the injection port 110 , thereby expanding the range of the mist-like water discharge. In addition, as shown in FIG. 11, if the shape of the thin portion 125 is made to be non-circular, as shown in FIG.
It is also possible to limit the direction of the spread of the range MA of the mist spray formed around the periphery of the mist.

Further, the present invention is applied to both the anal cleaning jet 110 and the bidet cleaning jet 111, and a mist spray area is provided for both, and the present invention is applied only to the bidet cleaning jet 111. You can do it. Both injection ports 110, 1
It is also preferable to make the thickness and the gap of the nozzle 11 different, and to make the form of the washing water from both the ejection ports different so that the ejection state is optimal for the object to be washed. When only one jet port and one flow path to the jet port are required, as shown in FIGS. 12 and 13, the bosses 131 and 1 are provided inside the nozzle portion 105c.
It is also possible to adopt a simple form provided with 32. Further, as shown in FIG. 14, the height of the boss 131 can be adjusted by an adjusting screw 135, so that the dimension t1 of the gap can be adjusted. In this case, the volume of the washing water can be finely adjusted after the product is manufactured. It is also preferable that the position of the boss 131 is adjustable by a motor or the like, and is changed during the cleaning, or the spread of the cleaning water is changed according to a user's instruction.
In the latter case, it is conceivable to provide a weight sensor on the toilet seat 28 and automatically change the feeling of the amount of washing water and the feeling of water, depending on whether the user is a child or an adult.

The embodiment of the present invention has been described above.
The present invention is not limited to such embodiments at all, for example, a configuration applied to a cleaning nozzle other than a sanitary cleaning device such as an oral cleaning nozzle used in dentistry, throat, etc., a configuration in which the cleaning nozzle does not move, It goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention, such as a configuration applied to a cleaning nozzle having a single ejection port.

[0030]

As described above, according to the cleaning nozzle of the present invention, the flow path of the cleaning water in the cleaning water pressure pipe is changed.
Other than near the opening provided in the pumping pipe
By forming a smaller cross-sectional area, the periphery of the cleaning water spouting from the opening can be sprayed in the form of a mist, so the amount of cleaning water can be set freely without increasing the amount of water discharged unnecessarily. can do. Moreover, the feeling of water is not impaired.

Further, in the sanitary washing apparatus using the washing nozzle, the sense of volume of washing water can be increased, so that the sense of washing in a local area can be improved. In addition, necessary washing water can be spouted out only to necessary parts, which is preferable from the viewpoint of hygiene. Further, since the discharge amount of the washing water is not increased unnecessarily to increase the volume, it can contribute to the conservation of water resources.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a shape near an opening of a cleaning nozzle according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an outline of a sanitary washing device as an embodiment.

FIG. 3 is an explanatory view showing a use state of the same.

FIG. 4 is a block diagram showing a flow of cleaning water.

FIG. 5 is a block diagram showing a flow of warm air.

FIG. 6 is a sectional view showing a main part of a cleaning nozzle 24;

7 is a rear view of the vicinity of the Geneva gear 92. FIG.

FIG. 8 is an external view showing the external appearance of a cleaning nozzle 24.

FIG. 9 is an explanatory diagram showing a dimension t1 and a thickness t2 of a gap in an opening.

FIG. 10 is a sectional view showing an embodiment in which the thickness around the opening is reduced.

FIG. 11 is an explanatory diagram showing a relationship between a shape of a thin portion and a mist-like water discharge.

FIG. 12 is an explanatory view exemplifying another shape having different flow path cross-sectional areas.

FIG. 13 is an explanatory diagram illustrating another shape.

FIG. 14 is an explanatory view showing a structure capable of adjusting a cross-sectional area of a flow path in an opening.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 ... Sanitary washing apparatus 21 ... Western-style toilet 22 ... Main body 24 ... Cleaning nozzle 25 ... Operation panel 26 ... Operation part 28 ... Toilet seat 29 ... Lid 30 ... Wash water tank 32 ... Branch pipe 33 ... Connecting pipe 34 ... Water supply adapter 36 ... Pressure reducing valve 38 ... Solenoid valve 39 ... Safety valve 40 ... Valve unit 41 ... Temperature detector 42 ... Heater 43 ... Heat exchanger 45 ... Heat exchanger unit 46 ... Check valve 47 ... Flow control motor 48 ... Flow control valve 50 ... Flow Conditioning unit 52 ... Nozzle unit 55 ... Nozzle motor 60 ... Hot air blowing device 62 ... Fan motor 64 ... Sirocco fan 65 ... Heater 66 ... Thermistor 68 ... Temperature fuse 70 ... Hot air duct 72 ... Fan cover 80 ... Casing 81 ... Housing 82 ... Opening 84 ... Drive mechanism 85 ... Rotating drum 86 ... Steel belt 87 ... Nozzle cylinder 88,89 ... Pins 90, 91: Pin groove 92: Geneva gear 93: Connecting rod 101: Engagement pin 102: Engagement pin 104: Outer cylinder 104a: Large diameter section 105: Inner cylinder 105a: Body part 105b: Plug body 105c: Nozzle part 106 pipe fittings 107A, 107B hot water introduction port 108 packing 110 injection port 111 injection port 112 water passage member 113 first water passage 113A communication hole 113B communication hole 114 second water passage 120 step 124: Thin portion 131, 132: Boss 135: Adjusting screw A: Local cleaning position B: Bidet cleaning position

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuhiro Hiratsuka 1 Aichi-cho, Kasugai-shi, Aichi Prefecture Inside Aichi Electric Co., Ltd. References Hira 4-99776 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E03D 9/00-9/16

Claims (4)

(57) [Claims] 1. A flow path for feeding cleaning water is formed.
Equipped with a flush water pressure pipe, and flushes the flush water sent into the flow path.
Cleaning water is spouted from an opening provided in the pressure pipe for cleaning,
A cleaning nozzle for performing the cleaning, wherein the flow path of the cleaning water pressure pipe is formed to a downstream area of the opening.
Form, the flow path of the washing water pressure flue, in the vicinity of the opening
Is formed to have a smaller cross-sectional area than the flow path other than in the vicinity
Cleaning nozzles. 2. The thickness of the washing water pressure feeding pipe is adjusted by the opening.
In the surrounding predetermined range, a portion other than the predetermined range
The cleaning nozzle according to claim 1, wherein the cleaning nozzle is also formed to be thin. 3. The cleaning nozzle according to claim 1, wherein a cross-sectional area of the flow path at the opening can be adjusted. 4. A sanitary washing apparatus for performing washing by jetting washing water toward a local part of a person sitting on a toilet seat, wherein the washing nozzle according to any one of claims 1 to 3, and the washing nozzle. Nozzle moving means for moving the cleaning nozzle between the retracted position and the cleaning position; cleaning water supply means for supplying an appropriate temperature of cleaning water to the cleaning nozzle; cleaning start instruction means for instructing the start of cleaning; When receiving a start instruction, a cleaning performing unit that drives the nozzle moving unit to move the cleaning nozzle to a cleaning position, and ejects cleaning water from the cleaning nozzle using the cleaning water supply unit. And a sanitary washing device.