JPH1030747A - High-cut valve and shower device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent injection of high temperature water from an injection nozzle by arranging a temperature sensing body which energizes a valve element in a direction for closing an outflow port when hot water higher in temperature than a specified value is fed, and a bias spring which energizes the valve element in an opposite direction. SOLUTION: A high-cut valve 38 is arranged on a downstream side of a mist shower 36 side of a selector valve 34 so as not to supply high temperature water to the side of the mist shower 36 when erroneous operation of a mixing valve 32 causes supply of high temperature water. In the high-cut valve 38, a valve element is energized by shape memory spring as a temperature-sensing body and a bias spring. Mixed hot water is flowed from an inflow port communicated with the selector valve 34. The energizing force of the memory shape spring is smaller than that of the bias spring. The mixed hot water is supplied from an outflow port to the mist shower 36 in the state that the valve element is energized rightward. When high temperature mixed water is supplied, the energizing force of the memory shape spring is larger than that of the bias spring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high cut valve for preventing hot water from splashing on a user and a shower device using the high cut valve.

[0002]

2. Description of the Related Art Conventionally, a shower apparatus is provided with a spray nozzle for jetting hot water. As a spray nozzle,
There was one as shown in FIG.

In FIG. 15, a nozzle body 1 has an inflow port 2 into which a fluid flows, and a swirling portion 3 for swirling the flowing fluid.
And a swirling chamber 4 provided so that the fluid is sufficiently swirled;
An ejection hole 5 from which the swirled fluid is ejected is provided. The fluid that has flowed in from the inflow port 2 flows into the two swirl inflow paths 6 of the swirl part 3 shown in FIG. 16 and flows at an angle of the swirl inflow path 6 and is opened to the swirl chamber 4 at a predetermined angle. Each swirl hole 7 reaches the swirl chamber 4. The fluid flowing out of the two swirl holes 7 forms a swirl flow in the swirl chamber 4 and is spouted from the spout holes 5. At this time, since the fluid is a swirling flow and has an angular momentum unlike a jet of a fluid having no swirling flow, when the fluid is ejected from the ejection hole 5, it spreads in the radial direction. Therefore, as the spray angle of the nozzle increases,
The jet became a mist.

[0004]

However, in the conventional spray nozzle, since only two swirl holes 7 are provided in the swirl part 3, the swirl force of the fluid cannot be sufficiently obtained and the spray angle becomes small. However, the size of the spray particles becomes coarse. In particular, when used at low pressure, such as in ordinary households, the swirling force of the fluid is further reduced, and it is difficult to achieve a nozzle having a small spray particle and a large spray angle with a conventional nozzle.

[0005] Warm water supplied from the spray nozzle is jetted as it is even when the temperature is high.

[0006]

SUMMARY OF THE INVENTION The present invention provides an inlet for hot water, an outlet for hot water, a high temperature drain for discharging hot water having a predetermined temperature or higher, and a switch between the outlet and the high temperature drain. , A temperature-sensing element that urges the valve element in a direction to close the outlet when hot water having a predetermined temperature or more is supplied, and an element that urges the valve element in a direction opposite to the direction in which the temperature element urges the valve element And a bias spring.

Accordingly, if the temperature of the hot water supplied from the inlet is equal to or higher than a predetermined temperature, the urging force is increased in the direction in which the thermosensitive element closes the outlet, so that the outlet is closed and the high-temperature drain is closed. The side is opened to prevent the supply of hot water to the outlet.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A high cut valve according to the present invention comprises an inlet for hot water, an outlet for hot water, a high temperature drain for discharging hot water having a predetermined temperature or higher, and an outlet and a high temperature drain. A valve element for switching, a temperature sensing element for urging the valve element in a direction to close the outlet when hot water of a predetermined temperature or more is supplied, and a valve element in a direction opposite to the direction for urging the valve element. Biasing bias spring.

According to the above invention, if the temperature of the hot and cold water supplied from the inlet is high, the temperature sensing element urges the valve body, the outlet is closed, and the high-temperature drain is opened and the flow is closed. The supply of hot water to the outlet can be prevented.

In the high cut valve according to the present invention, the temperature sensing element includes a shape memory spring.

Further, the shower apparatus of the present invention comprises a shower apparatus main body, seating means on which a bather sits, a spray nozzle for blowing hot water to the bather, and a predetermined temperature from a spray nozzle provided upstream of the spray nozzle. And a high cut valve for preventing the hot water from being jetted out.

When high-temperature hot water is supplied to the high-cut valve, the high-cut valve prevents supply of high-temperature hot water to the spray nozzle, so that high-temperature hot water is not spouted from the spray nozzle to the bather. .

[0013] Further, the shower device of the present invention comprises a shower device main body, seating means on which a bather sits, a spray nozzle for jetting hot water to the bather, and hot water and water provided upstream of the spray nozzle. And a high cut valve provided between the spray nozzle and the mixing valve to prevent hot water having a predetermined temperature or more from being ejected from the spray nozzle.

[0014] Even if hot water is supplied to the high cut valve due to malfunction or misoperation of the mixing valve, the high cut valve prevents supply of hot water to the spray nozzle.
Hot water is not spouted from the spray nozzle to the bather.

Further, the shower device of the present invention comprises a shower device main body, seating means on which a bather sits, a spray nozzle for jetting hot water to the bather, a hand shower, hot water for the spray nozzle and the hand shower. A switching valve for switching,
It has a high cut valve provided between the switching valve and the spray nozzle to prevent hot water having a predetermined temperature or more from being ejected from the spray nozzle.

When the spray nozzle side is opened by the switching valve, hot water passes through the high cut valve, and when the high temperature hot water is supplied, the high cut valve operates, so that the high temperature hot water is ejected from the spray nozzle. Can be prevented.

Further, the shower apparatus of the present invention can switch an inflow port for inflowing hot water, an outflow port for outflowing hot water, a high temperature drain port for discharging hot water having a predetermined temperature or higher, and switching between the outflow port and the high temperature drain port. Valve body, a temperature-sensitive body that urges the valve body in a direction to close the outlet when hot water is supplied, and a bias spring that urges the valve body in a direction opposite to the direction in which the temperature-sensitive body urges the valve body. And a high cut valve having the following.

If the temperature of the hot and cold water supplied from the inlet is high, the thermosensitive element urges the valve body, the outlet is closed, and the high-temperature drain is opened, and the high temperature to the outlet is opened. Since the supply of hot water is prevented, it is possible to prevent hot water from being supplied to the spray nozzle.

Further, the shower device of the present invention comprises a shower device main body, seating means on which a bather sits, temperature setting means, and a mixing valve for mixing hot water and water at a temperature set by the temperature setting means. A spray nozzle provided on the downstream side of the mixing valve for spraying hot water to a bather; and the temperature setting means is provided with a stopper for controlling the temperature of the mixed hot water of the mixing valve to a predetermined temperature or lower.

The stopper can prevent hot water higher than a predetermined temperature from being supplied to the spray nozzle.

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a sectional view of a spray nozzle according to a first embodiment of the present invention. In FIG. 1, the nozzle body 8 is provided with an inflow port 9 into which a fluid flows and an inflow path 10.
Reference numeral 11 denotes a swirl tip for swirling the fluid flowing from the inflow passage 10, as shown in FIG. 2, three swirl portions 12 on the same circumference and a center hole 1 at substantially the center of the swirl hole.
3 are provided. The three swirling holes 12 are provided so as to have equal opening areas and to divide the circumference into three equal parts so that swirling flows exiting from the respective swirling holes 12 are uniform. The swirl holes 12 have three opening holes 12 in order to increase the opening area and increase the turning force.
Has a slender shape with the circumference provided with the central axis as the center axis. FIG. 3 is a partial cross-sectional view of the swirl hole 12. The three swirl holes 12 are formed at a predetermined angle so as to swirl the flowing fluid. Also, the center hole 13 is
2 form the central flow of the swirling flow. The protrusion 14 is provided on the swirl tip 11, reduces pressure loss when a fluid flows into the swirl hole 12, and suppresses turbulence of the flow.

Reference numeral 15 denotes a swirl chamber provided on the downstream side of the swirl tip 11 and in which swirl flows swirled in the swirl hole 12 are confused, and stabilizes the swirl flow. The swirling chamber 15 includes a swirling tip 11 and a nozzle cap 17 having an ejection hole 16 for ejecting swirled fluid. The orifice 16 is provided with a 60 ° chamfer 18 on the side where the fluid flows, so that the swirling flow can be smoothly performed.
It is configured to flow into. Here the spout 16
Are formed on substantially the same axis as the center hole 13 of the revolving tip 11, and are configured such that the center axis flow from the center hole 13 is jetted as it is.

The turning tip 11 is a resin molded product. Therefore, the inflow-side opening 12a and the outflow-side opening 12b of the swirl hole 12 are connected at 30 ° and are configured to overlap as shown in FIGS. 2 and 3, so that resin molding can be easily performed. It has become.

The operation of this embodiment with the above configuration will be described. Fluid flowing from the inflow hole 9 flows into the inflow passage 10
To the turning tip 11. In the swivel tip 11, the fluid has three swirl holes 12 and the center hole 1 in the opening area ratio.
3 of each channel. Here, the convex portion 14 is provided with a predetermined angle so as to minimize the turbulence of the fluid entering the swirl hole 12, so that the turbulence of the swirl flow formed by the swirl portion 12 does not occur. . The fluid entering the swirl hole 12 becomes a swirl flow having a swirl force and reaches the swirl chamber. In the swirl chamber 15, the swirl flow from the swirl hole 12 is applied to the center hole 13.
Swirl around the axial flow formed in the ejection hole 16 from the
It is mixed and becomes a stable swirling flow. Then, the swirling flow having the axial flow is ejected from the ejection hole 16.

The jet (spray) from the spray nozzle at this time
Is shown in FIG. The distribution in FIG. 4A is obtained by setting the spray nozzle downward in the vertical direction and setting a plurality of cells at a position 250 mm from the tip of the spray nozzle until the water level of the cell with the highest fluid level reaches a predetermined height. (Hereinafter, the distribution of the jet measured by this method is referred to as a spray distribution). The number of swirl holes is 2
FIGS. 4 (b) and 4 (c) show the distribution of the spray at four locations and four locations.
Shown in Table 1 is a numerical representation of this spray distribution.

[0027]

[Table 1]

As shown in FIG. 4A, the spray angle is the angle when the cells at both ends in the spray distribution and the ejection holes 16 are connected by a straight line. The spray angle of the three swirl holes 12 is the largest. If the swirling force of the fluid is large, the spray angle is large, and it is understood that the swirling force is large when the number of the swirling holes 12 is three, and the swirling flow in the swirling chamber 15 is most stable. Therefore, as shown in FIG. 5, the pressure loss of the spray nozzle is 3
The smallest of the places.

When the number of the swirl holes 12 is three, the swirl flow in the swirl chamber 15 is stable and the turbulence of the center axis flow is small, so that the spray distribution is more uniform. According to the first embodiment of the present invention, three swirl holes 12 are provided, and the swirl flow is stabilized in the swirl chamber 15 and the swirl force of the fluid does not decrease, so that the spray angle increases. In both cases, there is an effect that the pressure loss of the spray nozzle can be reduced.

A center hole is provided at the center of the three swirl holes 12, a central axial flow is formed in the swirl flow in the swirl chamber 15, and the swirl component of the swirl flow at the ejection hole 16 and the straight traveling. Since the components can be balanced, there is an effect that a uniform spray distribution can be realized over a wide range.

Further, the inflow side opening 12a of the swirl hole 12
And the outflow side opening 12b are configured to overlap, so that resin molding can be easily performed, and the cost of the spray nozzle can be reduced.

In this embodiment, the inflow side opening 12a and the outflow side opening 12b of the swirl hole 12 are connected at an angle of 30 °.
Desirably, it is 60 °.

Further, the chamfered portion 18 is set at 60 ° at which the spray angle is the largest, but in the range of 30 ° to 70 °, turbulence does not easily occur in the swirling flow, and a sufficient spray angle can be obtained.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIGS.

FIG. 6 is a sectional view of the spray nozzle according to the second embodiment, and FIG. 7 is an external view of the revolving tip 11. The second embodiment differs from the first embodiment in that the center hole 13 is not provided at the center of the three turning holes 12 of the turning tip 11.

In the above configuration, only operations different from those of the first embodiment will be described. When the fluid that has flowed reaches the swivel tip 11, it is equally split into the three swirl holes 12. The fluid does not form a central axial flow, but if the previous flow rate is the same flow rate, the generated swirling force increases as the swirl flow flow rate increases.
Therefore, the swirling force of the jet flowing through the jet hole 16 is increased, and there is an effect that the spray angle can be further increased at a low flow rate and a low pressure.

If the chamfered portion 18 of the ejection hole 16 is not provided and there is no burr or the like on the inflow side of the ejection hole 16, an axial flow of the swirling flow is formed when the ejection hole 16 flows into the center of the spray. And the spray distribution can be equalized. Further, even in the configuration in which the center hole 13 is provided as in the first embodiment, the spray amount at the center can be increased by the same operation.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a sectional view of the spray nozzle of the third embodiment.

In FIG. 8, the nozzle body 19 is provided with an inflow port 9 and an inflow path 10 into which a fluid flows, and the outflow side of the inflow path 10 has three swirling portions on the same circumference. And a center hole 21 substantially at the center of the hole.
Is provided. The nozzle body 19 is screwed with a nozzle cap 21 provided with an ejection hole 16 for ejecting a fluid by a screw portion 22 which is a spray variable means. The distance of the hole 16 is adjustable. A seal member 23 is provided at a fitting portion between the nozzle body 19 and the nozzle cap 21 to prevent leakage of fluid from the screw portion 22.

Reference numeral 24 denotes a swirl chamber provided on the downstream side of the swirl hole 20 to mix the swirl flows swirled in the swirl hole 20 to stabilize the swirl flow. The swirl chamber 24 has a swirl hole 20 side that is larger than a circumferential diameter in which the swirl hole 20 is provided, and an ejection hole 16 side that is smaller than a circumferential diameter in which the swirl hole 20 is provided. . Then, the swirl flow suppressing unit 25 rotates the nozzle cap 21 and turns the swirl hole 2.
When the distance between the nozzle hole 0 and the ejection hole 16 becomes minimum, the nozzle body 18 comes into contact with the surface of the nozzle body 18 on the outflow side of the swirl hole 20, and
Is closed.

In the above configuration, the operation of the present embodiment will be described only on the points different from the first embodiment.

The fluid that has flowed into the swirl chamber 24 from the three swirl holes 20 forms a swirl flow in the swirl chamber 24 and
Squirted from. At this time, the swirling force of the swirling flow reaching the ejection hole 16 is affected by the distance between the swirl hole 20 and the ejection hole 16. That is, the spray angle ejected from the ejection hole 16 is
The swirl hole 20 and the ejection hole 16 adjusted by the screw portion 22
And will change according to the distance. FIG. 9 shows the relationship between the spray angle and the distance between the swirl hole 20 and the ejection hole 16. FIG.
In, the spray angle is maximized at a distance where the turning force is greatest, and the spray angle is smaller as the adjustment amount from that distance is larger. When the distance between the swirl hole 20 and the ejection hole 16 increases from the distance indicated by the maximum spray angle, the swirl force gradually decreases, and the spray angle decreases. Further, if the distance between the swirl hole 20 and the ejection hole 16 is reduced from the distance indicating the maximum spray angle, the swirl flow is not sufficiently formed,
Similarly, the spray angle becomes smaller. Further, when the distance between the swirl hole 20 and the ejection hole 16 is reduced, the swirl flow suppressing portion 25 hits the surface on the outflow side of the swirl hole 20 as shown in FIG. 10 and closes the swirl hole. Therefore, since the fluid flows only into the swirling chamber 24 from the center hole 21, no swirling flow is generated, and the jet is substantially in a direct injection state.

When the turning force increases, the spray angle increases and the spray particles of the fluid also decrease. When the turning force decreases, the spray angle decreases and the spray particles of the fluid increase.

That is, the distance between the swirl hole 20 and the ejection hole 16 can be adjusted by the screw portion 22 and the swirl hole suppressing portion 25 is provided so that the swirl hole 20 can be closed. There is an effect that it is possible to freely select a partial jet having a small spray particle and a large spray particle, and a jet having a large spray angle and a small spray particle according to the use situation.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 11 is an external view of the shower device 26, and FIG. 12 is a block diagram of the shower device 26.

The shower device 26 is attached to a bathroom wall surface 27, and can be seated on a chair 29, which is a seating means that can be stored in a shower device main body 28, in the bathroom so that a shower can be taken.

Reference numeral 30 denotes a hot water supply pipe to which hot water is supplied.
Is a water supply pipe to which water is supplied. Hot water supply pipe 30 and water supply pipe 3
1 communicates with a mixing valve 32, which mixes hot water and water to a temperature set by a temperature setting means 33.
The temperature setting means 33 is provided with a stopper (not shown) so that the set temperature does not exceed 50 ° C. so that the user does not accidentally take hot water.

The switching valve 34 switches the mixed hot water mixed by the mixing valve 32 to the hand shower 35 and the mist shower 36 side and closes the mixed hot water. Done.

Downstream of the switching valve 34 on the mist shower 36 side, when hot mixed hot water is supplied due to a malfunction or erroneous operation of the mixing valve 32, the hot mixed hot water is not supplied to the mist shower 36 side. High cut valve 38
Is provided. As shown in FIG. 13, the high cut valve 38 includes a shape memory spring 39 and a bias spring 40 which are temperature sensing elements.
Urges the valve element 41 so that the mixed hot water flows in from the inflow port 42 communicating with the switching valve 34. Normally, the biasing force of the shape memory spring 39 is smaller than that of the bias spring 40, and the mixed hot water is supplied from the outlet 43 to the mist shower 36 in a state where the valve body 41 is biased rightward. When the high-temperature mixed hot water is supplied, the urging force of the shape memory spring 39 increases and becomes larger than the urging force of the bias spring 40.
The valve body 41 is urged to the left, and high-temperature water is drained from the high-temperature drain port 44.

The mist shower 36 is symmetrically divided into five sets 1
It is composed of zero spray nozzles, and uses the spray nozzle 8 described in the first embodiment. Of the five sets of spray nozzles, one set of spray nozzles 45 attached to the upper part of the main body has the spray nozzle 4 provided at the center of the main body at the shoulder.
6 sprays from the back to the waist. Further, the arm unit 47 slidably attached to the shower device main body 28 is provided with three sets of spray nozzles 48 for spraying downward from the neck of the human body. And the spray nozzles 45, 46, 48
The mist is sprayed from the neck and wraps around the entire body below the neck. Also, the spray nozzles 45, 46,
Numeral 48 allows the nozzle spray direction to be adjusted according to the physique of the human body as shown in FIG.

The operation of the present embodiment in the above configuration will be described. When using the hand shower, first, the flow rate setting means 37 is rotated to the hand shower side, and the switching valve 34 is opened. When the switching valve 34 is opened, hot water is supplied from the hot water supply pipe 30 and the hot water supply pipe 31, and the supplied hot water is supplied to the mixing valve 3 so that the temperature becomes the temperature set by the temperature setting means 33.
2 mixed. The mixed hot water reaches the hand shower 35 via the opened switching valve 34.

When using the mist shower 36 that sits and takes a bath, the chair 29 and the arm 47 housed in the shower device main body 28 are set as shown in FIG. The switching valve 34 is opened to the mist shower 36 side by the flow rate setting means 37. The mixed hot water mixed by the mixing valve 32 reaches the high cut valve via the switching valve 34. At this time, the high cut valve 38 is driven according to the supply temperature of the mixing valve 32. That is, when the temperature of the mixed water becomes 50 ° C. or more, such as when the mixing valve 32 breaks down or overshoot occurs, the urging force of the shape memory spring 39 increases, and the valve body 41 moves to the left. The mixed hot water is switched from the outflow port 43 to the high-temperature drain port 44 so that the high-temperature mixed hot water is not sprayed from the mist shower 36.

The spray nozzles 45, 46, and 48 are used in the first embodiment.
And sprays the mixed water that has flowed in the form of a mist, uniformly and widely. The mixed hot water sprayed from the ten nozzles wraps the entire body of the seated user and forms a layer of the mixed hot water on the body surface, so that a feeling of warmth as if bathing can be obtained. The spray directions of the spray nozzles 45, 46, and 48 are adjustable, and the arm 47 is also movable, so that the spray can be applied to the entire body according to the user's physique. .

When the mist shower 36 takes a bath, the spray wraps the whole body, and in order to obtain a feeling of warmth as if bathing, the spray angle of the spray nozzles 45, 46, 48 is at least 30 ° or more, preferably 40 ° or more. If not, more spray nozzles are required. Further, the minimum flow rate of the mixed hot water required to obtain a feeling of warming is 5 to 6 l / min.

FIG. 15 shows the relationship between the pressure of the mixed hot water of the spray nozzles 45, 46, and 48 and the spray angle. In order to obtain a spray angle of 40 ° or more, the pressure of the mixed hot water of 0.3 kg / cm ² or more is sufficient. . Further, the spray nozzles 45, 46, and 48 have a large swirling force of the mixed hot water in the nozzles, so that the sprayed particles of the mixed hot water can be reduced at the above-described pressure, and a suitable feeling of use can be obtained. That is, the shower device 26 includes the spray nozzle 45,
Since the required pressure of the mixed hot water of 46 and 48 is low, the whole body can be wrapped in a small mist spray with the water supply and hot water supply pressure of a general household, and no water supply or hot water pressurizing device such as a pressure pump is required. .

According to the fourth embodiment of the present invention, a plurality of spray nozzles 45, 46 capable of spraying uniformly at a low pressure, a wide spray angle, small spray particles, and a low spray pressure are provided to a shower device 26 which is seated and bathed. , 48 are provided,
The spray wraps the whole body, and the water supply pressure and the hot water supply pressure to the shower device 26 required to obtain a feeling of warmth as when bathing can be reduced, and it is not necessary to use a pressurizing device or the like even in ordinary households.

Further, a feeling of warming can be obtained with a low-pressure mixed hot water, that is, a feeling of flow rate can be obtained.
There is also an effect that the amount of mixed hot water to be used can be reduced and it is economical.

In addition, while sitting on the chair 29, the whole body can be wrapped from the spray nozzles 45, 46, 48 of the mist shower 36, and a feeling of warmth as if taking a bath can be obtained. There is also an effect that the water pressure is not applied to the body and the burden on the body can be reduced. In particular, since the burden on the body is reduced, it is possible to prevent an increase in the number of elderly and handicapped persons taking a bath in recent years.

In this embodiment, the spray nozzles 45, 46, and 48 described in the first embodiment are used for the shower device 26. However, the spray nozzle described in the second embodiment may be used. The same effect can be obtained.

Further, the spray nozzle 4 described in the first embodiment is used.
If the spray nozzle capable of adjusting the spray angle described in the third embodiment is used instead of 5, 46, and 48, the range of the spray can be adjusted according to the difference in physique, and the mist shower 26 can be more suitably used. Can be used.

In this embodiment, a plurality of nozzles are constituted by the same nozzle. However, the spray nozzles 45 and 46 for spraying on the shoulder, back and waist are the spray nozzles described in the third embodiment. If direct injection can be applied locally, a massage effect on back pain, stiff shoulders, and the like can be obtained as necessary.

In this embodiment, if sufficient water supply and hot water supply pressure are possible, the swirl hole 12 serving as the swivel part should be 3
The same effect can be obtained not only at two places but also at two places or four places.

[0063]

As described above, the high cut valve of the present invention
An inlet for hot water, an outlet for hot water, a high-temperature drain for draining hot water above a predetermined temperature, a valve for switching between the outlet and the high-temperature drain, and hot water above a predetermined temperature supplied. And a biasing spring that urges the valve body in a direction to close the outflow port, and a bias spring that urges the valve body in a direction opposite to the direction in which the temperature body urges the body. If the temperature of the supplied hot water is high, the temperature sensing element urges the valve body, the outlet is closed, and the high-temperature drain is opened to prevent the supply of hot water to the outlet. Can be.

Further, the shower device of the present invention comprises a shower device main body, seating means on which a bather sits, a spray nozzle for jetting warm water to the bather, and a predetermined temperature from a spray nozzle provided upstream of the spray nozzle. A high-cut valve that prevents the above-mentioned hot water from being ejected. When high-temperature hot water is supplied to the high-cut valve, the high-cut valve prevents the supply of high-temperature hot water to the spray nozzle. No hot water is blown out to bathers.

Further, the shower apparatus of the present invention comprises a shower apparatus main body, seating means on which a bather sits, a spray nozzle for blowing hot water to the bather, and hot water and water provided upstream of the spray nozzle. And a high cut valve provided between the spray nozzle and the mixing valve to prevent hot water from being jetted out of the predetermined temperature from the spray nozzle. Even if hot water is supplied to the high-cut valve, the high-cut valve prevents supply of high-temperature water to the spray nozzle, so that high-temperature water is not spouted from the spray nozzle to the bather.

Further, the shower device of the present invention comprises a shower device main body, seating means on which a bather sits, a spray nozzle for blowing hot water to the bather, a hand shower, and hot and cold water for the spray nozzle and the hand shower. A switching valve for switching,
A high cut valve provided between the switching valve and the spray nozzle to prevent hot water having a predetermined temperature or more from being ejected from the spray nozzle, and when the spray nozzle side is opened by the switching valve, hot water passes through the high cut valve. When high-temperature hot water is supplied, the high-cut valve operates, so that the high-temperature hot water can be prevented from being ejected from the spray nozzle.

Further, the shower device of the present invention comprises a shower device main body, a seating means on which a bather sits, a mixing valve for mixing hot water and water to a set temperature, and a bather provided downstream of the mixing valve. The nozzle has a spray nozzle for jetting hot water and a stopper for keeping the temperature of the mixed hot water of the mixing valve below a predetermined temperature. This stopper prevents hot water higher than the predetermined temperature from being supplied to the spray nozzle. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view of a spray nozzle according to a first embodiment of the present invention.

FIG. 2 is an external view of a rotating tip of the spray nozzle.

FIG. 3 is a partial sectional view of a swivel tip of the spray nozzle.

FIG. 4A is an explanatory diagram showing a spray distribution of a spray nozzle in a first embodiment of the present invention. FIG. 4B is an explanatory diagram showing a spray distribution of another spray nozzle in the embodiment. Explanatory diagram showing the spray distribution of another spray nozzle

FIG. 5 is a pressure-flow rate characteristic diagram of a spray nozzle in the embodiment.

FIG. 6 is a sectional view of a spray nozzle according to a second embodiment of the present invention.

FIG. 7 is an external view of a turning tip of the spray nozzle.

FIG. 8 is a sectional view of a spray nozzle according to a third embodiment of the present invention.

FIG. 9 is a characteristic diagram of a hole distance and a spray angle of the spray nozzle.

FIG. 10 is an explanatory diagram of the operation of the spray nozzle.

FIG. 11 is an external view of a shower device according to a fourth embodiment of the present invention.

FIG. 12 is a block diagram of a hot and cold water supply system of the shower device.

FIG. 13 is a configuration diagram of a high cut valve of the shower device.

FIG. 14 is a sectional view of a spray nozzle of the shower device.

FIG. 15 is a sectional view of a conventional spray nozzle.

FIG. 16 is a partially enlarged sectional view of the spray nozzle.

[Explanation of symbols]

 Reference Signs List 8 nozzle body 10 inflow path 12 swirl hole (swirl part) 13 center hole 16 spout hole 19 nozzle body 20 swirl hole 22 screw part (spray variable means) 25 swirl flow suppressing part 26 shower device 28 shower device body 29 chair (seating means) ) 32 Mixing valve 33 Temperature setting means 34 Switching valve 35 Hand shower 36 Mist shower 38 High cut valve 39 Shape memory spring (thermosensitive body) 40 Bias spring 41 Valve 42 Inlet 43 Outlet 44 High temperature drain 45 Spray nozzle 46 Spray Nozzle 48 spray nozzle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazunari Kawahara 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Inside

Claims (7)

[Claims] 1. An inflow port for inflowing hot water, an outflow port in which hot water flows out, a high-temperature drainage port for discharging hot water having a predetermined temperature or higher,
A valve body for switching between the outlet and the high-temperature drain,
A temperature sensing element for urging the valve body in a direction to close the outlet when hot water having a predetermined temperature or more is supplied, and a bias spring for urging the valve body in a direction opposite to the direction in which the temperature sensing element urges the valve body And a high cut valve. 2. The temperature sensing element is a shape memory spring.
High cut valve as described. 3. A shower device main body, seating means on which a bather sits, a spray nozzle for blowing hot water to the bather, and a jet of hot water having a predetermined temperature or higher from the spray nozzle provided upstream of the spray nozzle. Shower device having a high-cut valve for preventing air leakage. 4. A shower device main body, seating means on which a bather sits, a spray nozzle for jetting hot water to the bather, and hot water and water provided upstream of the spray nozzle for mixing hot water and water at a set temperature. A shower device, comprising: a mixing valve; and a high cut valve provided between the spray nozzle and the mixing valve to prevent hot water having a predetermined temperature or higher from being ejected from the spray nozzle. 5. A shower device main body, seating means on which a bather sits, a spray nozzle for blowing hot water to the bather, a hand shower, and a switching valve for switching between the spray nozzle and the hot water to the hand shower. And a high cut valve provided between the switching valve and the spray nozzle to prevent hot water having a predetermined temperature or more from being ejected from the spray nozzle. 6. The high cut valve according to claim 3, wherein the high cut valve is the high cut valve according to claim 1 or 2.
The shower device according to the item. 7. A shower device main body, seating means on which a bather sits, temperature setting means, a mixing valve for mixing hot water and water to a temperature set by the temperature setting means, and a mixing valve provided downstream of the mixing valve. And a spray nozzle for spraying hot water to a bather, and the temperature setting means is provided with a stopper for lowering the temperature of the mixed hot water to a predetermined temperature or less.