JP4984363B2 - Human body local cleaning nozzle and human body local cleaning apparatus provided with the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a human body local cleaning nozzle used in a sanitary cleaning device or the like for cleaning a human body local part and a human body local cleaning apparatus including the same.
[0002]
[Prior art]
A human body local washing nozzle disclosed in Japanese Patent Publication No. 58-9688 is conventionally known.
A cross-sectional view of this type of conventional human body local cleaning nozzle is shown in FIG. In this figure, the nozzle 1 is composed of a first nozzle 2 and a nozzle body 3.
[0003]
When water pressure is applied to the upstream side of the first nozzle 2 of the main nozzle 1 having such a configuration, the wash water is jetted from the first nozzle 2 and passes through the cavity 4 provided in the nozzle body 3 and flows about 90 degrees in the middle. The direction is bent and sprayed from the spray port 5 toward the local portion. At this time, since the air suction port 7 is provided in the vicinity of the jet port 6 of the first nozzle 2, the hot water sucks air and is jetted from the jet port in a state where bubbles are mixed.
Therefore, the area of the washing water that collides with the local area increased, and the human body was able to enjoy a clean feeling.
[0004]
[Problems to be solved by the invention]
In the human body local cleaning nozzle having the conventional configuration, it is true that the human body can taste a lot of cleaning, but lacks the irritation and the weight of cleaning.
[0005]
The present invention solves such a conventional problem, and provides a human body local cleaning nozzle that has a lot of feeling and also has a feeling of irritation and a weight of cleaning, and a human body local cleaning device including the same. It is aimed.
[0006]
[Means for solving the problems and their functions and effects]
In order to achieve the above object, the human body local cleaning nozzle according to claim 1 is a human body local cleaning nozzle that includes a water supply channel and that injects cleaning water into the human body local region, and is formed in the water supply channel, and the outlet is formed in the water supply channel. An orifice directed to the human body part, Above An air inlet provided around the orifice, and a throat provided on a locus connecting the outlet of the orifice and the local body part, the throat from the outlet of the orifice Mix the air sucked from the air intake with the sprayed washing water, and generate a peak load at a cycle that is too fast for the human body to detect it. In addition, the throat portion has, on its inner periphery, a protrusion, a step portion, or a concavo-convex shape that increases the effect of air mixing into the washing water, promotes the peak load, and has a smaller diameter than the periphery thereof. The inlet to the outlet of the throat portion are arranged on the same axis as the orifice portion, and the outlet is open to the atmosphere. It is characterized by that.
[0007]
In the conventional configuration, the washing water sprayed from the first nozzle 2 passes through the cavity 4 provided in the nozzle body 3 and loses energy (that is, the washing water is lost when the direction of the water flow is bent about 90 degrees in the middle. Decelerate).
However, according to the human body local cleaning nozzle according to claim 1, the outlet of the orifice part is directed to the human body local part, and when water pressure is applied upstream of the orifice part, the cleaning water sprayed from the outlet of the orifice part is Colliding with the human body part with the water pressure jetted without any obstacles. That is, there is no energy loss (ie, slowing of the wash water). Therefore, the human body can taste cleaning with a sense of irritation.
[0008]
In addition, an air intake is provided around the orifice, and when washing water is injected from the outlet of the orifice, the pressure around the orifice becomes negative, so that air is sucked in (so-called ejector effect) ). The air sucked by the ejector effect disturbs the surface of the cleaning water ejected from the outlet of the orifice portion, and makes the cleaning water ejected from the throat portion thinner or thicker depending on the degree of the disturbance. The repetition of the thinness of the washing water causes a repetition of the high and low speeds of the washing water sprayed from the throat portion, and the repetition of the density difference of the washing water appears as a natural variation due to the repetition of the speed difference.
[0009]
Washing water that repeats such sparseness and denseness gives the human body plenty of feeling, especially in dense areas. Moreover, the repetition of the density is so fast that the human body cannot perceive it, so that the human body always feels as if the washing water collides in a dense state.
Therefore, in addition to the above-described cleaning with a sense of irritation, the human body can also enjoy the cleaning with a full feeling.
[0010]
In addition, the throat part mixes the air sucked from the air intake with the washing water jetted from the outlet of the orifice part, and the gas-liquid mixing generates a peak load at a cycle that is too fast for the human body to detect the human body. Promotion Since the means is provided, the fluctuation is further promoted and the cleaning feeling is enhanced.
[0011]
Gas-liquid mixing Promotion Specifically, for example, the means can be achieved by providing a projection or a stepped portion and a concavo-convex shape as indicated by reference numeral 15a on the inner periphery of the throat as shown in FIG. The gas-liquid mixed flow is compressed and released when it passes through the concavo-convex shape of the throat portion, so that the air mixing effect to the cleaning water is enhanced and the flow has a high cleaning power and feeling.
[0012]
In the case of the conventional nozzle configuration, the water flow bends at about 90 degrees at the throat portion, and the gas-liquid mixed water can be compressed and released at the bend portion, but the flow velocity is reduced due to the collision at the bend portion.
In the nozzle configuration of the present invention, the throat portion is provided on the trajectory between the orifice portion and the human body local portion, and the gas-liquid mixed flow action shape is provided, so there is no reduction in the flow velocity and high air mixing effect. Wash water can be discharged.
[0013]
The above-described protrusions, stepped portions, and concavo-convex shapes may be formed integrally with the throat portion or may be fitted with separate parts. The gas-liquid mixing action shape may be other than the irregularities on the inner circumference of the throat, and an effect is easily obtained if the inner circumference shape changes in the axial direction.
[0015]
Also, Claim 1 Since the throat portion and the orifice portion are arranged on the same axis according to the human body local cleaning nozzle described in the above, it is possible to work from the same direction in the assembly and post-assembly inspection process, such as a manufacturing surface, an inspection surface, etc. And is excellent in mass productivity.
[0016]
Claim 2 Claims 1 The human body local cleaning nozzle according to claim 1, further comprising a cleaning water swirling unit that swirls the cleaning water supplied to the orifice unit around the locus as a central axis.
[0017]
Claim 2 According to the human body local portion cleaning nozzle described in 1), the supplied wash water swirls by the wash water swirling unit. The swirling washing water passes through the orifice part and the throat part, and is diffused and injected in a conical shape. Therefore, the area of the washing water that collides with the local area increases, and the human body can enjoy a more comfortable washing.
[0018]
Claim 3 Claim 1 Or 2 The human body local cleaning nozzle according to claim 1, further comprising a variable unit that varies an amount of air taken in from the air intake port.
[0019]
Claim 3 According to the human body local cleaning nozzle described in (1), the amount of air taken in from the air intake port is varied by the variable portion. If the amount of air taken in is variable, the turbulence of the cleaning water increases, and a density difference appears greatly. Therefore, the human body can taste more irritating cleaning.
[0020]
Claim 4 Claims 3 In the human body local cleaning nozzle described in the item 1, the variable unit varies the amount of air taken in from the air intake port at a predetermined period.
[0021]
Claim 4 According to the human body local cleaning nozzle described in 1), since the amount of air taken in from the air intake port fluctuates in a predetermined cycle by the variable unit, the cleaning water is periodically disturbed. Therefore, the density of the washing water becomes periodic, and the human body can stably enjoy the irritating washing.
[0022]
Claim 5 Claims 1 to 4 The human body local cleaning nozzle according to claim 1, further comprising an orifice rotating section that rotates the orifice section about the locus as a central axis.
[0023]
Claim 5 According to the human body local cleaning nozzle described in (1), the orifice rotating portion is rotated about the locus as the central axis by the orifice rotating portion. When the orifice portion rotates about the locus as the central axis, the cleaning water is jetted in a conical shape. Therefore, the area of the washing water that collides with the local area increases, and the human body can enjoy a more comfortable washing.
[0024]
Claim 6 Claims 1 to 5 The human body local cleaning nozzle according to claim 1, further comprising a cleaning water pressure fluctuation part that fluctuates the pressure of the cleaning water supplied to the orifice part in a predetermined cycle.
[0025]
Claim 6 According to the human body local cleaning nozzle described in (1), the pressure of the cleaning water supplied to the orifice portion by the cleaning water pressure fluctuation unit varies in a predetermined cycle. Therefore, the wash water to be jetted is disturbed by the forced fluctuation by the washing water pressure fluctuation part in addition to the natural fluctuation in the orifice part and the throat part. Therefore, the human body can taste more irritating cleaning.
[0026]
Claim 7 Is a human body local cleaning nozzle that includes a water supply channel and injects cleaning water to the human body local part, and is formed in the water supply channel, an orifice part that directs an outlet to the human body local part, a resonance chamber, It has a throat part provided on the locus which connects the exit of an orifice part, and the above-mentioned human body part.
[0048]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0049]
FIG. 1 is a schematic perspective view of a human body local cleaning nozzle showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the tip of the human body local cleaning nozzle, and 8 is a water supply channel for supplying cleaning water. Is a water supply chamber for changing the course of cleaning water supplied from the water supply path 8 to an orifice section 12 (described later), 12 is an orifice section for increasing the flow rate of the cleaning water, and 13 is air suction for sucking air. 13A is an air inlet provided around the orifice part to which the tip of the air suction part 13 is connected, and 15 is a throat part.
Here, the diameter of the orifice portion 12 is φ1.3 mm, and the diameter of the throat portion 15 is φ2.3 mm (that is, the area ratio S2 / S1 between the sectional area S1 of the outlet of the orifice portion 12 and the sectional area S2 of the throat portion 15 is 3.1)).
The throat portion 15 is disposed on the trajectories X and Y from the orifice portion 12 to the anus a or the bidet b. In the embodiment shown in FIG. 2, the orifice part 12 and the throat part 15 are arranged on the same axis.
[0050]
Note that a protrusion 15 a as shown in FIG. 3 is formed on the inner periphery of the throat portion 15.
[0051]
4A and 4B are explanatory diagrams for explaining the arrangement of the water supply channel 8 and the water supply chamber 10, as viewed from the direction of the anus a or the bidet b in FIG.
4A, since the water supply channel 8 is connected toward the center of the water supply chamber 10, the wash water supplied from the water supply channel 8 flows into the orifice portion 12 along the locus X or Y. Head.
[0052]
On the other hand, in FIG. 4B, the water supply channel 8 is eccentrically connected from the center of the water supply chamber 10 (that is, the water supply channel 8 and the water supply chamber 10 constitute a washing water swirl), so The cleaning water supplied from the water swirls around the locus X or Y and travels toward the orifice portion 12. The swirling washing water passes through the orifice part 12 and the throat part 15 and expands in a conical shape and is jetted.
Therefore, the area of the washing water that collides with the local area increases, and the human body can enjoy a more comfortable washing.
[0053]
FIG. 5 is a digital push-pull gauge (manufactured by Aiko Engineering Co., Ltd.) in which the embodiment shown in FIG. 4 (a) is prototyped and the cleaning water is discharged, and the discharged cleaning water is disposed 60 mm away from the prototype. This is data obtained by measuring the load (pushing force) of washing water for about 2 seconds at a sampling period of 500 HZ. The horizontal axis represents time (seconds) and the vertical axis represents the washing water load (mN).
[0054]
As shown in FIG. 5, it was confirmed that when sprayed from a prototype nozzle, washing water having a peak (maximum) load value of 500 mN or more was generated. It was also confirmed that a peak occurred with a period of several tens of Hz. This is because the amount of air mixed into the cleaning water at the air intake port 13A around the orifice portion 12 is changed at a fast cycle by the action of the gas-liquid mixing means described above, so that the cleaning sprayed from the throat portion 15 is performed. The surface of the water is disturbed, the diameter of the cleaning water is changed, and the jetting speed of the cleaning water is changed. By repeating the difference in the washing water jet speed at a fast cycle, the density of the jet of the wash water changes, so that the peak load of the wash water can appear at a fast cycle.
[0055]
FIG. 6 shows the relationship between the area ratio S2 / S1 between the cross-sectional area S1 of the orifice portion 12 and the cross-sectional area S2 of the throat portion 15 and the peak load when the sprayed cleaning water hits the local area. is there.
Here, a peak load of 500 mN or more has been experimentally confirmed at an area ratio of S2 / S1 = 3.1.
[0056]
Next, the function and effect of this embodiment will be described.
When water pressure is applied upstream of the orifice portion 12, the wash water (flow velocity of about 12 m / s) injected from the outlet of the orifice portion 12 collides with the human body local area with the injected water pressure without any obstruction. That is, there is no energy loss (ie, slowing of the wash water).
Therefore, the human body can taste cleaning with a sense of irritation.
[0057]
Further, when cleaning water is jetted from the outlet of the orifice section 12, the pressure around the orifice section 12 becomes negative pressure, so that air is sucked from an intake intake port 13A provided around the orifice section 12 (so-called ejector) effect). The air sucked in by the ejector effect disturbs the surface of the cleaning water ejected from the outlet of the orifice section 12, and makes the cleaning water ejected from the throat section 15 thinner or thicker depending on the degree of the disturbance. The repetition of the thinness of the cleaning water causes a repetition of the high speed and the low speed of the cleaning water sprayed from the throat portion, and the repetition of the speed difference appears as a repetition of the density of the jet of the cleaning water.
Washing water that repeats such sparseness and denseness gives the human body plenty of feeling, especially in dense areas. Moreover, the repetition of the density is so fast that the human body cannot perceive it, so that the human body always feels as if the washing water collides in a dense state.
Therefore, the human body can enjoy the washing with a feeling of fullness in addition to the washing with the above-mentioned irritation.
[0058]
FIG. 7 shows a water circuit of the human body local cleaning device including the human body local cleaning nozzle of FIG.
From the water supply side (upstream side), 20 is a water supply connection part, 22 is a check valve for preventing backflow, 24 is a strainer that removes foreign matter in the supplied wash water, and 26 is downstream regardless of fluctuations in the water supply pressure. Is a pressure regulating valve that maintains a constant pressure, 30 is a main flow path solenoid valve, 32 is a fuselage washing solenoid valve, 34 is a relief valve for suppressing the pressure rise when the downstream pressure rises, and 36 is supplied wash water 1 is a hot water storage heat exchanger capable of storing 1.1 L of hot water, 38 is a vacuum breaker valve, 40 is a flow control valve (throttle valve), 42 is a switching valve, and 44 is equipped with a local body washing nozzle of FIG. Retractable nozzle body (Each one of the embodiments shown in FIGS. 4 (a) and 4 (b) is provided at the tip, and FIG. 4 (a) is used for anal cleaning and FIG. 4 (b) is used for bidet cleaning. ) 46 is a nozzle extension drive motor.
[0059]
Here, the flow control valve (throttle valve) 40 and the switching valve 42 are separated from each other for the sake of explanation. However, they can also be configured integrally, and in the following description, the flow control switching valve 40 is integrally formed. , 42.
In this case, the flow control switching valves 40 and 42 have three outflow passages for one inflow passage, and the built-in valve selectively selects the communication area between the inflow passage and the outflow passage according to the rotation angle. The structure is variable and can be stopped.
The valve is rotatable by the driving force of the stepping motor.
[0060]
FIG. 8 is an explanatory diagram for explaining the stretched state of the nozzle body 44.
In FIG. 8, the nozzle body 44 in the housed state is indicated by a solid line, and the nozzle body 44 in the extended state is indicated by a broken line.
Further, a and b are the washing positions of the anus and the bidet, which are local parts of the human body, respectively, A and B are the extending positions of the nozzle body for injecting washing water to the anus a and the bidet b, respectively. , Y indicate the trajectory connecting the orifice part to the anus a and the bidet b, respectively.
[0061]
In FIG. 8, as indicated by arrows, the cleaning range of the local area can be expanded by reciprocating the nozzle main body 44 with a small stroke at the extended positions A and B, and at the same time, the position of the cleaning water that collides with the local area. By changing, you can taste a cleaning with a sense of irritation.
[0062]
The cycle of the reciprocating movement of the nozzle body 44 with a small stroke can be arbitrarily set / changed, and the washing water to be sprayed is not only the natural fluctuation in which the density is repeated by the orifice part and the throat part, but also the nozzle body It is disturbed by forced fluctuations by 44 reciprocating movements.
Therefore, the human body can taste more irritating cleaning.
[0063]
In the above configuration, the operation of the parts constituting the water circuit of the human body local cleaning device before the cleaning water is jetted onto the human body will be described with reference to the timing chart shown in FIG.
[0064]
First, in the standby state, the seating SW (seat switch), deodorization, cleaning SW (cleaning switch), the main flow path solenoid valve 30, and the body cleaning solenoid valve 32 are in the OFF state (non-operating state), and the nozzle body 44 is in the retracted state. The flow control valves 40 and 42 are in a position (= SC) where the inflow path and the three outflow paths are all in communication.
[0065]
When the human body is seated on the toilet seat (not shown) in the standby state, the seating SW (seat switch) is turned on, and the deodorizing function (not shown) is turned on at the same time the interlock of the human body local washing function is released. Operation state).
Next, when a butt switch (not shown) as a request for injecting wash water into the anus is operated, the main flow path solenoid valve 30 is turned on (water channel open state), and the wash water is discharged from the nozzle body 44 in the stored state. Is injected. The sprayed cleaning water is reflected by the reflection plate 45 disposed on the opposite side, and cleans the nozzle body 44 (= pre-cleaning).
After pre-cleaning, the pressure accumulated in the heat exchanger 38 is released (= pressure release).
After depressurization, the flow control valves 40 and 42 move to the water stop position (= flow control movement).
After the flow adjustment, the nozzle body 44 extends. At that time, the body cleaning electromagnetic valve 32 is turned on (water channel opened) to clean the surface of the extending nozzle body 44 (= extension (body cleaning) )).
[0066]
After extension (body cleaning), in order to clean the actual human body part, the main flow path solenoid valve 30 is turned on, and the water channel opening by the flow control switching valves 40 and 42 is gradually advanced (= soft start).
After the soft start, perform local cleaning with the water of your choice (= main cleaning).
In addition, although the strength of the water flow of the washing water to be injected can be changed by the flow control switching valves 40 and 42, the strength (maximum flow rate) is designed to be 1 L / min or less. Therefore, hot water can be continuously ejected from the human body local cleaning nozzle for 60 seconds or more.
[0067]
When a stop switch (not shown) serving as a stop request for the wash water is operated, the main flow path solenoid valve 30 is turned off (water channel closed state), and the spray of the wash water is stopped. The flow control switching valves 40 and 42 are maintained as they are, and the pressure accumulated in the heat exchanger 36 is released (= pressure release).
After depressurization, the flow control switching valves 40 and 42 are moved to the water stop position (= flow control movement).
After completion of the flow adjustment, the nozzle main body 44 is stored in the storage position, and at the same time the body cleaning electromagnetic valve 32 is turned on to clean the surface of the nozzle main body 44 (= storage (body cleaning)).
[0068]
After storage (body cleaning), the flow control switching valves 40 and 42 are moved to the SC position, the main flow path solenoid valve 30 is turned on (water channel open state), and cleaning water is jetted from the nozzle body 44 in the stored state. . The sprayed cleaning water is reflected by the reflection plate 45 disposed on the opposite side, and cleans the nozzle body 44 (= post-cleaning).
[0069]
After the post-cleaning, the flow control switching valves 40 and 42 are moved to the origin position (= origin adjustment), and the flow control switching valves 40 and 42 are further moved to the SC position (= flow control movement).
Here, when the person leaves, the seating SW (seat switch) is turned off, and the deodorizing function is stopped.
[0070]
FIG. 10 claims 3, 4 is provided with a variable section 18 that varies the amount of air taken in from the air suction section 13. About the same structure as the Example mentioned above, the same code | symbol is attached | subjected to the figure. Further, a projection 15 a as shown in FIG. 3 is formed on the inner periphery of the throat portion 15. The variable unit 18 includes a motor, and opens and closes the air suction unit 13 at a high speed (preferably about 50 HZ) by the motor to variably control the amount of air taken in from the air suction unit 13.
[0071]
According to this embodiment, the amount of air taken in from the air suction unit 13 is varied by opening and closing the variable unit 18. If the amount of air taken in is variable, the turbulence of the cleaning water increases, and a density difference appears greatly.
Therefore, the human body can taste more irritating cleaning.
[0072]
In addition, the variable period of the air amount by the variable unit 18 can be arbitrarily set and changed. In addition to the natural variation in the orifice portion and the throat portion, the sprayed cleaning water is forcedly varied by the variable unit 18. Disturbed.
Therefore, the human body can taste more irritating cleaning.
[0073]
FIG. 11 claims 5 And an orifice rotating portion 19 that rotates the orifice portion 12 around the locus X or Y as a central axis. About the same structure as the Example mentioned above, the same code | symbol is attached | subjected to the figure. Further, a projection 15 a as shown in FIG. 3 is formed on the inner periphery of the throat portion 15. The orifice rotating unit 19 includes a motor, and the motor rotates the nozzle head around the locus as a central axis, and the outlet of the orifice portion 12 disposed on the locus is moved. , The trajectory is rotated around the center axis.
[0074]
According to this embodiment, the orifice rotating unit 19 rotates the orifice unit 12 around the locus X or Y as the central axis. When the orifice portion 12 rotates with the trajectory as the central axis, the wash water discharged from the orifice portion spreads in a conical shape and is jetted.
Therefore, the area of the washing water that collides with the local area increases, and the human body can enjoy a more comfortable washing.
[0075]
The rotation period of the orifice unit 12 by the orifice rotation unit 19 can be arbitrarily set and changed, and the injected cleaning water is forced by the orifice rotation unit 19 in addition to natural fluctuations in the orifice unit and the throat unit. Disturbed by dynamic fluctuations.
Therefore, the human body can taste more irritating cleaning.
[0076]
FIG. 12 claims 6 In this embodiment, the pressure of the cleaning water supplied to the orifice unit 12 is changed at a predetermined cycle. About the same structure as the Example mentioned above, the same code | symbol is attached | subjected to the figure. Further, a projection 15 a as shown in FIG. 3 is formed on the inner periphery of the throat portion 15. This washing water pressure fluctuation | variation part 48 is equipped with the well-known plunger pump comprised by an electromagnetic coil and a plunger, and a high pressure is periodically added to washing water by the drive of this plunger pump.
[0077]
According to this embodiment, the pressure of the cleaning water supplied to the orifice unit 12 varies at a predetermined cycle by the cleaning water pressure variation unit 48. Therefore, the jetted cleaning water is disturbed by the forced fluctuation by the washing water pressure fluctuation section 48 in addition to the natural fluctuation at the orifice part and the throat part.
Therefore, the human body can taste more irritating cleaning.
[0078]
FIG. An embodiment different from the previous embodiment, In particular, a resonance chamber 60 is provided. About the same structure as the Example mentioned above, the same code | symbol is attached | subjected to the figure.
[0079]
According to this embodiment, the resonance chamber 60 is provided, and when cleaning water is jetted from the outlet of the orifice portion 12, the periphery of the orifice portion 12 (that is, the resonance chamber 60) becomes negative pressure. When the resonance chamber 60 has a negative pressure, it acts as a force that pulls the cleaning water sprayed from the throat portion 15 toward the resonance chamber 60, and as a result, the cleaning water spreads in a conical shape and is discharged.
When the negative pressure in the resonance chamber 60 increases, the atmosphere near the outlet of the throat portion 15 is drawn into the resonance chamber 60. When the atmosphere is drawn into the resonance chamber 60, the resonance chamber becomes a positive pressure, and the cleaning water sprayed from the orifice portion 12 does not spread in a conical shape, and is discharged as a united thin linear jet.
Thus, by providing the resonance chamber 60, conical water discharge and linear water discharge are repeatedly performed (so-called self-oscillation phenomenon occurs). When such water discharge collides with a local part, the human body can enjoy a full feeling when conical water discharge and a stimulating feeling when linear water discharge occurs.
[Brief description of the drawings]
FIG. 1 shows a nozzle part of a human body local cleaning device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the tip of a nozzle part of a local body cleaning device
[Figure 3] Gas-liquid mixing of the nozzle Promotion Schematic cross-sectional view of the throat, explaining the means
4A is a diagram in which the water supply channel 8 is connected toward the center of the water supply chamber 10, and FIG. 4B is a diagram in which the water supply channel 8 is connected eccentrically from the center of the water supply chamber 10 (that is, The water supply path 8 and the water supply chamber 10 constitute a washing water swirl)
FIG. 5 shows data obtained by actually making a prototype of the embodiment shown in FIG. 4A and measuring the load when the cleaning water is discharged.
FIG. 6 shows the relationship between the area ratio S2 / S1 between the cross-sectional area S1 at the outlet of the orifice part and the cross-sectional area S2 at the throat part, and the peak load when the sprayed cleaning water hits the local area.
7 is a water circuit of a human body local cleaning device including the human body local cleaning nozzle of FIG.
FIG. 8 is an explanatory diagram for explaining the expansion and contraction state of the nozzle body 44
FIG. 9 is a timing chart showing the operation of the parts constituting the water circuit of the human body local cleaning device
FIG. 10 Claim 3, Example corresponding to 4
FIG. 11 Claim 5 Examples corresponding to
FIG. 12 Claim 6 Examples corresponding to
FIG. 13 Another with a resonant chamber Example
FIG. 14 is a cross-sectional view of a conventional human body local cleaning nozzle
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... This nozzle, 2 ... 1st nozzle, 3 ... Nozzle main body, 4 ... Cavity, 5 ... Injection port, 6 ... Injection port, 7 ... Air inlet, 8 ... Water supply path, 12 ... Orifice part, 13 ... Air suction Part, 13A ... air intake, 15 ... throat part, 15a ... projection (gas-liquid mixing) Promotion Means), 18 ... Variable portion, 19 ... Orifice rotating portion, 20 ... Water supply connection portion, 22 ... Check valve, 24 ... Strainer, 26 ... Pressure regulating valve, 30 ... Main flow path solenoid valve, 32 ... Body cleaning solenoid valve, 34 ... Relief valve, 36 ... Heat exchanger, 38 ... Vacuum break valve, 40 ... Flow control valve (throttle valve), 42 ... Switching valve, 44 ... Nozzle body, 45 ... Reflector, 46 ... Nozzle expansion / contraction drive motor, 48 ... Wash water pressure fluctuation part, 60 ... resonance chamber

Claims (7)

A human body local cleaning nozzle that has a water supply channel and injects cleaning water to the human body local part,
An orifice part formed in the water supply channel and having an outlet directed to the human body local part;
And an air inlet provided around the orifice,
A throat portion provided on a trajectory connecting the outlet of the orifice portion and the local body portion;
Have
The throat, a mixture of air sucked from the air inlet to the washing water injected from the outlet of the orifice portion, Rutotomoni to generate peak load at short intervals about no appreciable human on the human private,
The throat portion has, on its inner periphery, a projection, stepped portion or uneven shape whose diameter is smaller than its surroundings, enhancing the air mixing effect to the washing water and promoting the peak load,
The human body local washing nozzle , wherein the inlet to the outlet of the throat portion are arranged on the same axis as the orifice portion, and the outlet is open to the atmosphere . In the human body local cleaning nozzle according to claim 1 ,
A human body local cleaning nozzle, comprising: a cleaning water swirling section that swirls cleaning water supplied to the orifice section around the locus as a central axis. In the human body local washing nozzle according to claim 1 or 2 ,
A human body local washing nozzle comprising a variable portion that varies the amount of air taken in from the air intake. In the human body local cleaning nozzle according to claim 3 ,
The human body local washing nozzle, wherein the variable section varies the amount of air taken in from the air intake at a predetermined cycle. In the human body local washing nozzle according to any one of claims 1 to 4 ,
A human body local cleaning nozzle, comprising: an orifice rotating section that rotates the orifice section about the locus as a central axis. The human body local cleaning nozzle according to any one of claims 1 to 5 ,
A human body local cleaning nozzle, comprising: a cleaning water pressure fluctuation part that fluctuates the pressure of the washing water supplied to the orifice part at a predetermined cycle. Human private cleaning apparatus characterized by having a human private part washing nozzle according to 6 any one claims 1.

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