JP2702539B2 - Spout nozzle structure of bubble generation bathtub - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial application field The present invention relates to a jet nozzle structure of a bubble generating bath.

(B) Conventional technology Conventionally, as one form of a jet nozzle of a bubble generating bath, a jet forming part for changing a bathhouse strongly fed from a circulating pump into a jet, and a bath formed as a jet immediately in front of the jet forming part. 2. Description of the Related Art There is an air suction unit that takes in air into a bath to form a bath containing air bubbles and a throat unit that guides the bath water containing air bubbles into a bathtub body.

The jet forming part is composed of a fixed valve seat forming a jet forming flow path, and a valve body which opens and closes the jet forming flow path by coming into contact with and separating from the valve seat, and the valve body is connected to one end of a throat part. The throat is adjustable on the same axis as the valve seat, and the opening and closing of the valve is controlled by adjusting the advance and retreat of the throat. I can adjust it.

(C) Problems to be Solved by the Invention However, in the case of the above-mentioned ejection nozzle, since the adjustment of the ejection amount and ejection pressure of the bath water must be performed by manually adjusting the throat portion, the operation is complicated. However, when the number of ejection nozzles becomes plural, there is a problem that the trouble is doubled.

In addition, if the throat portion is adjusted while ejecting the bath water from the throat portion, the throat portion is adjusted through the valve body, particularly when the ejection amount is reduced, in order to adjust the amount and pressure of the spout of the bath water. There is a problem that the throat cannot be easily adjusted forward / backward due to a large water pressure applied to the throat.

For this reason, the throat must be adjusted by moving the throat part by stopping the jetting of the bath water one by one.In addition, if the bath water is spouted after the adjustment, the desired spout amount and spout pressure There was also a problem that it might not be adjusted.

(D) Means for Solving the Problems Therefore, in the present invention, a jet forming part which is attached to the bathtub main body and jets a bath water mixed with bubbles into the bathtub main body is provided with a valve seat forming a jet forming flow path. A jet valve for opening and closing the jet forming flow path in contact with and separating from the valve seat, and a valve opening / closing operation motor for opening and closing the valve for adjusting the jet flow, for jetting bath water. An object of the present invention is to provide an ejection nozzle structure of a bubble generation bath tub in which the amount and ejection pressure can be automatically adjusted.

Another feature is that the valve body opening / closing operation motor is disposed in the axial direction of the nozzle casing surrounding the jet forming portion.

(E) Example First, the overall configuration of a bubble generating bath provided with a jet nozzle according to the present invention will be described with reference to the accompanying drawings.

(A) shown in FIG. 1 and FIG. 2 is an air bubble generation bathtub. The air bubble generation bathtub (A) is provided on the front and rear walls and left and right side walls of a bathtub body (1) formed in a box shape having an upper surface opening, respectively. Foot-side / back-side / ventral-side jet nozzles (2) and (2) according to the present invention
(3) (3) (4) (4) are provided in total of six.

The bathtub body (1) has a flange-shaped edge (1a) having a constant width at the periphery, and the air intake section (5) is formed at the edge (1a).
Are formed at substantially center portions of the left and right side walls, and a vertically long concave portion (1b) (1b) having a substantially V-shaped cross section is formed on the side facing the rear wall (back side) of the concave portion (1b) (1b). The ventral ejection nozzles (4) and (4) are attached to the inclined surface (1'b) toward the center of the rear wall.

Further, a pump protection case (9) is provided outside the bubble generation bathtub (A). Inside the case (9), a circulation pump (P) for circulating bath water and a pump (P) are provided. Filter (43) for filtering the bath water circulated by P)
A pump drive motor (M) for driving the pump (P), and a control unit (C) for controlling the drive of the motor (M) and a valve body opening / closing operation motor (M1) described later. I have.

Further, a bath water circulation path (D) is interposed between the circulation pump (P) and the bubble generation bath (A).

In other words, the bath water circulation channel (D) includes a bath water suction pipe (10) for sending bath water from the bubble generation bath (A) to the circulation pump (P), and the circulation pump (P) and the like. It is composed of a hot water bath pipe (11) for sending hot water to (A).

And the bath water suction pipe (10) is the bathtub body (1)
One end is opened at the lower part of the pump, and the other end is connected to the suction port of the circulation pump (P) so that the bath water is sucked into the circulation pump (P). One end communicates with the water discharge port of the pump (P), and the jet nozzle (2)
(3) The other end is communicatively connected to (4).

Further, a pressure detection sensor (not shown) for detecting the pressure of the bath water fed into the pipe (11) is attached in the middle of the bath hot water pipe (11), and a detection result from the sensor is provided. Is sent to the controller (C), and the controller (C) controls the ejection pressure of the bath water ejected from the ejection nozzles (2), (3), (4).

Hereinafter, the configuration of the foot-side / back-side / ventral-side ejection nozzles (2), (3), and (4) according to the present invention will be specifically described.

Each of the jet nozzles (2), (3) and (4) is characterized in that the jet amount and jet pressure of the bath water can be automatically changed, and the foot side shown in FIG. 3 to FIG. Description will be made with reference to the configuration of the ejection nozzle (2).

That is, the foot-side jet nozzle (2) is connected to the bathtub body (1).
A cylindrical nozzle casing (20) is connected to the outside of the bathtub body (1) in a cantilevered manner at the foot-side jet nozzle connection port (1g) of the above, and air bubbles are mixed in the nozzle casing (20). A jet forming part (50) for spouting the hot water and a throat part (60) for determining the jetting direction of the hot water mixed with bubbles spouted from the jet forming part (50) are provided on the bathtub body (1) side. It is arranged and fixed via the located decorative cover (26).

Hereinafter, the nozzle casing (20), the decorative cover (26), the throat section (60), and the jet forming section (50), which are components of the ejection nozzle (2), will be described individually.

As shown in FIG. 3, the nozzle casing (20) has its front end connected to a circular foot-side jet nozzle connection port (1g) opened at the lower part of the front wall of the bathtub body (1), and its rear end is substantially connected. It extends rearward horizontally.

Then, a ring-shaped packing (1h) is fitted to the periphery of the foot-side jet nozzle connection port (1g), and a female screw is attached to the front surface of the packing (1h) located inside the bathtub body (1) and to the inner peripheral surface. Attach the rear face of the ring-shaped female screw part (1i) formed with, and attach / detach the outer male screw part (20a) formed on the outer peripheral surface of the front end of the nozzle casing (20) to the ring-shaped female screw part (1i) Screw the nozzle casing (20) freely into the bathtub body (1).
Is mounted on the front wall in a substantially orthogonal state and in a watertight state.

The decorative cover (26) has a cylindrical shape as a whole, and has a female screw portion (26a) formed on the outer peripheral surface thereof.
Is detachably screwed to an inner peripheral male screw portion (20j) formed on the inner peripheral surface of the front end portion of the nozzle casing (20), and the front end portion (26b) of the decorative cover (26) is screwed into an inner / outer superimposed state. Along the front end of the attached nozzle casing (20) and the front end of the ring-shaped internal thread portion (1i), it is folded back to the outer peripheral surface of the ring-shaped internal thread portion (1i), and the front end portion (26b) This covers the front end of the nozzle casing (20) and the ring-shaped female screw portion (1i), and the throat fixing member (25) described later is fixed at the rear end of the decorative cover (26).

In addition, as shown in FIGS. 4 and 5, an intake pipe connecting portion (20
b), and an inlet pipe (1) having one end connected to the connecting portion (20b) and connected to the air intake portion (5) (see FIG. 1).
The other end of 2) is detachably connected.

Also, on the rear peripheral wall of the nozzle casing (20),
As shown in FIG. 4 and FIG. 4, the strong-feed pipe connecting part (20c) orthogonal to the nozzle axis is opened, and the hot-water bath strong-feed pipe (11) is detachably connected to the connecting part (20c). Yes (first
See figure). (N) indicates the direction of bath water inflow.

The connecting portions (20b) and (20c) are opened with a phase change of 90 degrees in the circumferential direction of the nozzle casing (20).

The throat portion (60) is composed of a throat (24), a throat fixing member (25) for supporting the throat (24) so as to be able to swing freely, and a front portion of the valve seat forming cylinder (21). ing.

Then, the throat (24) is formed such that the outer peripheral surface of the base (24a) is formed in a spherical shape, and the base (24a) is attached to the throat fixing member (2).
The inner peripheral surface of 5) and the throat support surfaces (25a) (21b) formed on the inner peripheral surface of the valve seat forming cylinder (21) are slidably fitted in surface contact with the throat support surfaces (25a, 21b). 24a) Protrude forward the cylindrical tip (24b) with a smaller outer diameter, and swing the tip (24b) manually in any direction up, down, left and right around the base (24a). Adjustable.

Moreover, a constant sliding resistance acts on the base (24a) of the throat (24) from the throat support surfaces (25a) (21b),
The throat (24) can be stopped at any swing angle.

The base (24a) of the throat (24) has its top (24'a) fitted to the throat support surface (21b),
It is positioned on the same vertical plane as the front end face of the valve seat forming cylinder (21), and the width from the center of the base (24a) to the rear end face (24'b) is made approximately half the radius of the base (24a). It is formed so that the throat base (24a) can be easily fitted to the throat support surface (21b) from inside the bathtub body (1).

In addition, the base (24a) of the throat (24) has a substantially front half inner peripheral surface having the same diameter as the inner diameter of the distal end portion (24b), and a substantially rear half inner peripheral surface formed to have a diameter which is enlarged rearward. Base (24a)
The rear end opening diameter is larger than the inner diameter of the valve seat forming cylinder (21), and when the throat (24) swings, the valve seat forming cylinder (21) blows out to the throat (24). The influx of bathing water can be done smoothly.

Further, the front end (24b) of the throat (24) extends the front end surface to the vicinity of the front end surface located in the bathtub body (1) of the decorative cover (26), and the outer peripheral surface of the front end portion (24b) is A throat swing operation space (28) is formed between the inner peripheral surface of the cover (26).

And the throat swing operation space (28)
The bather grabs the tip (24b) of the throat (24)
The throat (24) is formed in such a size that it can be swung in any direction.

The throat fixing member (25) is fitted into the front inner peripheral surface of the nozzle casing (20) via a positioning groove, and the front surface (25b) is fixed to the rear end of the decorative cover (26) by the fixing ring (2).
8), the inner peripheral surface (25a) is formed into a concave spherical surface corresponding to the front spherical surface of the base (24a) of the throat (24), and the throat (25a) is formed by the inner peripheral surface (25a). 24) at the base (2
The front outer peripheral surface of 4a) is slidably supported in surface contact.

Also, the valve seat forming cylinder (21) is connected to the nozzle casing (2
0) The front end opening is freely inserted into and out of the center of the nozzle casing (20), and the rear end face is positioned near the high-feed pipe connecting portion (20c) to form on the front outer peripheral surface. The projecting step (21b) engages with the concave step (20i) formed on the inner peripheral surface of the nozzle casing (20) to regulate backward sliding and rotation around the axis, as well as the valve seat. The position of the jet forming portion (50) provided in the forming cylinder (21) and the position of the air mixing portion (70) provided in the nozzle casing (20) are aligned.

A throat support surface (21c) of a concave spherical shape corresponding to the rear spherical surface of the base (24a) of the throat (24) is formed on the inner peripheral surface of the front portion of the valve seat forming cylinder (21). The base (24a) of the throat (24) is fitted to the surface (21c) by surface contact as described above, and the throat fixing member (2
The throat (24) whose forward sliding is restricted by 5)
The base (24a) restricts sliding of the valve seat forming cylinder (21) forward.

The jet forming part (50), which is a main part of the present invention, includes an air mixing part (70) provided in the middle of the valve seat forming cylinder (21),
Immediately after the aeration section (70), a jet forming channel (2
7), and a valve body (2) for adjusting the ejection amount that opens and closes the jet forming flow path (27) by moving the valve seat (21a) toward and away from the valve seat (21a).
2), a motor (M1) for opening and closing the valve body (22) for opening and closing the valve (22) for adjusting the ejection amount, and a rear wall forming plate (29) supporting the motor (M1). .

Further, at the position of the outer peripheral surface in the middle of the valve seat forming cylinder (21) orthogonal to the axis of the intake pipe connecting portion (20b),
As shown in FIG. 5 and FIG. 5, an annular air inflow path (21d) is formed along the outer peripheral surface, and the air pipe (21d) has an intake pipe connecting portion (20b) side and the connecting portion (20d). Air inlets (21e) and (21f) are provided on the side opposite to 20b), and the valve seat forming cylinder (2) is passed through the air inlets (21e) and (21f).
1) The inside and the intake pipe connecting portion (20b) are communicated to form an air mixing portion (70) in the valve seat forming cylinder (21). (M) indicates the air inflow direction.

Further, the valve seat (21a) is attached to the valve seat forming cylinder (2) in the middle of the valve seat forming cylinder (21) immediately behind the air mixing part (70).
1), a jet forming flow path (27) is formed on the axis of the valve seat (21a), and a right-angled corner (21) is formed on the inner peripheral edge of the rear end of the valve seat (21a). 'A) to form the same corner (2
1'a), the ejection amount adjusting valve element (22) having the outer peripheral edge at the inclined surface (22a) is brought into contact with or separated from the ejection amount adjusting valve element (22). 27) The opening and closing amount (adjusting the ejection amount and ejection pressure) can be adjusted.

As shown in FIG. 6, the valve body opening / closing operation motor (M1) is provided with a tubular motor casing (23) detachably mounted on the rear wall forming plate (29). In addition, a cylindrical coil (23a) is provided coaxially with the nozzle casing (20), and a cylindrical magnet (23b) is disposed in the coil (23a) to excite the coil (23a). Allows the magnet (23b) to rotate forward and reverse, and a cylindrical rotor nut (2
3c) is mounted concentrically and integrally, and the rotor nut (23c) is rotatably mounted on a shaft with a bearing (23e).
A valve body support rod (23d) is inserted through the rotor nut (23c) so as to be able to slide forward and backward.

Then, a spiral rotor nut-side ball groove (23k) is formed on the inner peripheral surface of the rotor nut (23c), and a spiral groove is formed on the outer peripheral surface of the valve body support rod (23d) in the same direction as the rotor nut-side ball groove (23k). Spiral rod-side ball groove (23
m) to form the opposing rotor nut side ball groove (23
ball (23n) between k) and rod side ball groove (23m)
Are rollably interposed. (23g) is a rotation restricting piece that prevents the valve body support rod (23d) from rotating with the rotor nut (23c).

With this configuration, the valve support rod (2) is linked to the rotor nut (23b) that rotates integrally with the magnet (23c).
3d) can be moved forward and backward through a ball (23n) a minute distance steplessly.

In addition, the distal end of the valve body support rod (23d) is connected to a rod insertion hole (29) provided in the center of a rear wall forming plate (29) described later.
e) It penetrates the inside and extends into the nozzle casing (20), and a valve body (22) for adjusting the ejection amount is attached to the tip of the valve body support rod (23d).

Further, the valve body support rod (23d) has, at the rear end thereof, an amount of advance / retreat of the valve body support rod (23d), that is, an injection amount adjusting valve body (2
2) A valve reference position detection sensor (23f) that detects the opening and closing amount (adjusts the ejection amount and ejection pressure) is installed. The detection sensor (23f) is attached to the reference position Hall element (23i) Positioning element (23i) and valve support rod (2
3d) A reference position detecting magnet (23j) attached to the rear end position.

The valve body reference position detection sensor (23f) includes a reference position hall element (23i) and a reference position detection magnet (23j) that change in accordance with the advance / retreat operation of the valve body support rod (23d).
The control unit (C) converts the change in magnetic force between the
To a reference position (for example, a fully closed position), and the control unit (C) controls the valve opening / closing operation motor (M
The number of pulses (rotation angle) from the reference position in 1) is calculated. (23h) is a cord connected to the coil (23a) and the valve opening / closing amount detection sensor (23f).

With this configuration, the valve opening / closing operation motor (M1)
Energizes the coil (23a) to rotate the rotor nut (23b) together with the magnet (23c),
In conjunction with the rotation of b), the valve body support rod (23d) is moved forward and backward to move the ejection amount adjusting valve body (22) attached to the tip of the valve body support rod (23d) to the valve seat (21a). By contacting and separating, it is possible to adjust the amount and pressure of the hot water jetted into the bathtub body (1).

In addition, the opening / closing amount of the valve body (22) for adjusting the amount of jet is
The result of the reference position detected by the valve body reference position detection sensor (23f) is sent to the control unit (C), and based on the result, the control unit (C) controls the energization of the coil (23a) to eject the same. The quantity adjusting valve element (22) is properly opened and closed to allow fine adjustment of the amount and pressure of the spout of bath water into the bathtub body.

In addition, as the valve opening / closing operation motor (M1), if the ejection amount adjusting valve (22) can be advanced / retracted in a stepless manner by a minute distance to finely adjust the ejection amount and ejection pressure of the bath water. Of course, other piezoelectric actuators can be used.

A waterproof cover (40) integral with the ejection amount adjusting valve element (22) is attached to the periphery of the rear end of the ejection amount adjusting valve element (22). The waterproof cover (40) surrounds the distal end of the valve body support rod (23d) and prevents water from entering the valve body opening / closing operation motor (M1) through the surface of the rod (23d). The mounting flange (30) provided on the peripheral edge at the rear end of the nozzle casing (2)
It is attached to the front surface of the rear wall forming plate (29) in a watertight state in (0).

The waterproof cover (40) is connected to the valve support rod (23
It has a bellows-like configuration that expands and contracts in the front-rear direction in conjunction with the forward / backward movement of d).

Further, in the present embodiment, the ejection amount adjusting valve element (22) formed integrally with the waterproof cover (40) is formed of a synthetic resin such as polytetrafluoroethylene or nylon 11.

Further, (44) is a cover for preventing bites of hair and the like for preventing the bellows-like waterproof cover (40) from biting cotton chips and hair, and the cover (44) is used for mounting. It can be detachably attached to the flange (30) and can be removed when unnecessary. (20m) is an air breathing port.

The rear wall of the nozzle casing (20) is formed by a rear wall forming plate (29) separate from the nozzle casing (20), and the rear wall forming plate (29) is formed of a nozzle casing. (20) It has a disk shape with a diameter substantially the same as the inner diameter of the rear end, and is fitted and detachably attached to and detached from the front end opening of the nozzle casing (20).

The rear wall forming plate (29) is connected to the nozzle casing (2
0) The rear peripheral edge is brought into contact with and locked to the rear wall forming plate restricting piece (20 g) formed on the inner peripheral surface of the rear end, thereby restricting the rearward sliding, while the valve seat forming cylindrical body (21). The front peripheral edge is brought into contact with and locked to a rear wall advancement restricting step (21g) formed at the rear end of the rear end, thereby restricting forward sliding. (29a) is the rear wall forming plate (2
9) Packing provided on the peripheral surface.

The outer diameter of the motor casing (23) is
The diameter of the nozzle casing (20) formed by the inner peripheral surface of the rear wall forming plate (29) is smaller than the inner diameter of the rear end opening (20k).

With this configuration, if the rear wall forming plate (29) removes the valve seat forming cylindrical body (21) that restricts the rear wall forming plate (29) from sliding forward, the nozzle casing (20) The valve opening / closing motor (M1) attached to the rear wall forming plate (29) is larger than the inner diameter of the rear end opening (20k) of the nozzle casing (20). Due to the small diameter, it can be removed integrally with the rear wall forming plate (29).

The valve body opening / closing operation motor (M1) can be removed from the rear wall forming plate (29) outside the bathtub body (1) if necessary.

Further, the other ejection nozzles (3) and (4) are configured similarly to the ejection nozzle (2) so that fine adjustment of the ejection amount and ejection pressure of the bath water can be performed.

The adjustment of the jet nozzles (2), (3) and (4)
This can be performed by a remote controller (30) (see FIG. 1).

As shown in FIG. 7, the air intake section (5) is connected to one end of each of the intake pipes (12) and (12) through front and rear walls of an intake pipe connection section (83) provided at the center of the bottom surface. Then, the air taken in from the air intake provided at the upper part of the air intake (5) is sent to each of the intake pipes (12) and (12) through the intake pipe connecting part (83), and each of the intake pipes (1
2) The air can be supplied from (12) to each of the jet nozzles (2), (3) and (4). In FIG. 7, (84) is a reactance type silencer, and (85) is a check valve. The check valve (85) prevents the bath water in the intake pipe (12) from flowing backward. .

(F) Effect In the present invention, a motor for opening / closing the valve body is provided in the jet forming section, and the opening / closing amount of the valve for adjusting the ejection amount is adjusted by the motor for opening / closing the valve body. Since the ejection pressure can be automatically changed, no inconvenience occurs even when there are a plurality of such ejection nozzles.

In addition, since the opening / closing amount of the valve body is adjusted by the valve body opening / closing operation motor while the bath water is being spouted, the amount and pressure of the spout of the bath water can be automatically changed. It is possible to change the setting of the amount of hot water and the pressure of the hot water quickly and reliably.

In addition, since the valve body opening / closing operation motor is disposed in the axial direction of the nozzle casing, the motor can be used to open and close the ejection amount adjusting valve body in the axial direction of the nozzle casing, and the inner wall of the nozzle casing can be opened and closed. The jet property of the bath water flowing along can be stabilized.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air bubble generating bath provided with a jet nozzle according to the present invention. FIG. 2 is a plan view of the bubble generating bathtub. FIG. 3 is an enlarged sectional view of an ejection nozzle. FIG. 4 is a rear view of the jet nozzle. FIG. 5 is a sectional view taken along line II of FIG. FIG. 6 is an enlarged sectional view of a motor for opening and closing a valve body. FIG. 7 is a sectional view of the intake pipe. (A): Bubble generation bathtub (P): Circulation pump (C): Control unit (1): Bathtub body (2): Foot side jet nozzle (3): Dorsal jet nozzle (4): Ventral jet nozzle ( 10): Bath hot water suction pipe (11): Bath hot water pipe

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mitsuaki Hashida 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Tochiki Kikai Co., Ltd. Chigasaki Plant (72) Inventor Koichi Uchiyama 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture No. Tochi Kiki Co., Ltd. Chigasaki Plant (72) Inventor Kenji Moriyama 2-8-1, Honmura, Chigasaki City, Kanagawa Prefecture Tochi Koki Co., Ltd. Chigasaki Plant

Claims (2)

(57) [Claims] 1. A jet forming part which is attached to a bathtub main body and which jets a bath containing air bubbles into the bathtub main body, a valve seat forming a jet forming flow path, and a jet forming flow which comes into contact with and separates from the valve seat. A bubble that can automatically adjust the amount and pressure of the hot water from the bath, consisting of a valve for opening and closing the path and a motor for opening and closing the valve to open and close the valve Spout nozzle structure of generating bathtub. 2. A structure according to claim 1, wherein the motor for opening and closing the valve element is arranged in the axial direction of a nozzle casing surrounding the jet forming portion.