JPH02211151A - Jet nozzle structure for bubble generating bathtub - Google Patents

Abstract

PURPOSE:To make automatic adjustment possible of a jet amount of hot water and its jet pressure by providing a jet amount adjusting valve unit attached to and separated from a valve seat forming a jet stream forming flow path opened and closed it and a valve unit open-close actuator motor open-close actuating this jet amount adjusting valve unit. CONSTITUTION:A valve seat forming cylinder 21 provides just behind its air mixing part 70 a valve seat 21a forming on its axial line a jet stream forming flow path 27. The constitution is such that an open-close amount (adjusting a jet amount and pressure) of the jet stream forming flow path 27 can be adjusted by a jet stream adjusting valve unit 22 attached to and detached from a right angular part 21'a of the valve seat 21a. A valve unit open-close actuator motor M1 extends the point end of its valve unit supporting rod 23d penetrating through in a rod insertion hole 29e into a nozzle casing 20, mounting to the point end a jet amount adjusting valve unit 22. The valve unit open-close actuator motor M1, electrifying its coil 23a, rotates a rotor nut 23b with a magnet 23c, and being associated with this action, the valve unit supporting rod 23d is longitudinally actuated attaching the jet amount adjusting valve unit 22 to and detaching it from the valve seat 21a thus adjusting the jet amount of hot water and its jet pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a jet nozzle structure for a bubble-generating bathtub.

(b) Conventional technology Conventionally, as a form of the jet nozzle of a bubble-generating bathtub, there was a jet-forming part that turned the bath water sent by the circulation pump into a jet, and a jet was created directly in front of the jet-forming part. Some bathtubs are composed of an air suction section that takes air into the bath water to make the bath water mixed with bubbles, and a throat section that guides the bath water containing bubbles into the bathtub body.

The jet forming section is composed of a fixed valve seat that forms a jet forming channel, and a valve body that approaches and separates from the valve seat to open and close the jet forming channel, and the valve body is connected to one end of the throat section. The throat part can be freely adjusted forward and backward on the same axis as the valve seat, and the opening and closing of the valve body can be adjusted in conjunction with the forward and backward adjustment of the throat part, thereby controlling the amount and pressure of the hot water jetted out. I am able to adjust it.

(c) Problems to be Solved by the Invention However, in the case of the above-mentioned jet nozzle, the amount and pressure of the jet of bath water must be adjusted by manually moving the throat section forward and backward, which makes such operations cumbersome. However, when the number of ejection nozzles increases, there is a problem in that the trouble is doubled.

In addition, when adjusting the forward and backward movement of the throat part to adjust the spouting amount and jetting pressure of bath water, it is necessary to adjust the forward and backward movement of the throat part while spouting hot water from the throat part, especially when reducing the spouting volume. There was a problem in that it was difficult to adjust the forward and backward movement of the throat section because the throat section was subjected to large water pressure.

For this reason, it is troublesome to have to stop the spouting of bath water one by one and then adjust the forward and backward movement of the throat part according to the register. There was also the problem that there were cases where the adjustment was not made.

(d) Means for Solving the Problems Therefore, in the present invention, a jet flow forming part that is attached to a bathtub body and spouts bubble-mixed bath water into the bathtub body is combined with a valve seat that forms a jet flow flow path. , a jet amount regulating valve body that approaches and separates from the valve seat to open and close the jet flow forming channel, and a valve body opening/closing motor that opens and closes the jet flow regulating valve body, and a valve body that opens and closes the jet flow regulating valve body. It is an object of the present invention to provide an ejection nozzle structure for a bubble generating bathtub, which allows automatic adjustment of the amount and ejection pressure.

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

(E) Embodiment First, the overall structure of a bubble-generating bathtub equipped with a jet nozzle according to the present invention will be described based on the accompanying drawings.

(A) shown in FIGS. 1 and 2 is a bubble generating bathtub,
The bubble generating bathtub (A) has foot side, dorsal side and ventral side jet nozzles (2) (2) according to the present invention on the front and rear walls and left and right side walls of the bathtub body (1) formed in a box shape with an opening on the top. ) (
3) (3) (4) A total of six (4) are provided.

The bathtub body (1) has a flange-like edge (la) of a constant width formed on the periphery, and an air intake portion (5) on the edge (la).
), and a vertically elongated recess (lb) (lb) with a V-shaped cross section is formed approximately at the center of the left and right side walls;
The ventral side ejection nozzle (4) (4) is attached to the inclined surface (1°b) on the side facing the rear wall (dorsal side) of lb), facing toward the center of the rear wall.

In addition, a pump protection case (9) is arranged outside the bubble generating bathtub (A), and inside the case (9),
A circulation pump (P) that circulates bath water and the same pump (P)
A filter (43) that filters the bath water circulated by the filter, and a pump drive motor (M) that drives the pump (P).
and a control section (C) that controls the drive of the same motor (M) and the valve body opening/closing motor (old), which will be described later.

Moreover, a bath water circulation channel (D) is interposed between the circulation pump (P) and the bubble generating bathtub (A).

That is, the bath water circulation flow path (D) is connected to the bubble generating bathtub (A).
A bath water suction vibrator (io) to send bath water from the circulation pump (P) to the same bathtub (^)
It consists of a bath water bullet delivery vibrator (11) for sending bath water to the body.

And the bath suction vibe (lO) is attached to the bathtub body (1).
One end is opened at the bottom of the circulation pump (P), and the other end is connected to the water intake port of the circulation pump (P) so that the bath water is sucked into the circulation pump (P). (P
), one end of which communicates with the spout of the spout nozzle (2) (
3) The other end is connected to (4) for communication.

In addition, a pressure detection sensor (not shown) for detecting the pressure of the bath water being pumped through the pipe (11) is installed in the middle of the bath water pumping vibrator (11), and the detection result from the sensor is installed. is sent to the control section (C), which controls the jetting pressure of the bath water spouted from each jetting nozzle (2), (3), and (4).

Below, foot side, dorsal side, ventral side jet nozzle (2) according to the present invention
The configurations of (3) and (4) will be specifically explained.

Each of the jet nozzles (2), (3), and (4) is characterized by being configured to be able to automatically change the jetting amount and jetting pressure of bath water. This will be explained with reference to the configuration of the jet nozzle (2).

That is, the foot side spout nozzle (2) has a cylindrical nozzle casing (20) cantilevered to the outside of the bathtub body (1) at the foot side spout nozzle connection port (1g) of the bathtub body (1). A jet flow forming part (50) which is connected in communication with each other and spouts out bubble-mixed bath water into the nozzle casing (20), and a jet flow direction of the bubble-mixed bath water spouted from the jet flow forming part (50). A defined throat portion (60) is arranged and fixed via a decorative cover (26) located on the bathtub body (1) side.

Below, the components of the jet nozzle (2), such as the nozzle casing (20), the decorative cover (26), and the throat part (60), are shown below.
) and the jet flow forming section (50) will be explained individually.

As shown in FIG. 3, the nozzle casing (20) has its front end connected in communication with a circular foot-side jet nozzle connection port (Ig) opened at the lower part of the front wall of the bathtub body (1), and its rear end is Distracted horizontally and posteriorly.

Then, fit a ring-shaped gasket (lh) around the periphery of the foot-side jet nozzle connection port (1g), and attach a female thread on the inner peripheral surface to the front surface of the gasket (lh) located inside the bathtub body (1). Attach the rear surface of the ring-shaped female threaded portion (II) formed with
The nozzle casing (2
An outer peripheral male threaded portion (20a) formed on the outer peripheral surface of the front end of 0)
The nozzle casing (20) is attached to the front wall of the bathtub body (1) substantially orthogonally and in a watertight manner by removably screwing on the nozzle casing (20).

Further, the decorative cover (2B) has a cylindrical overall shape, has a female threaded portion (28a) formed on the outer peripheral surface, and has a spaced threaded portion (28a) formed on the outer peripheral surface.
a) is removably screwed onto the inner circumferential male threaded portion (20j) formed on the inner circumferential surface of the front end of the nozzle casing (20), and the front end (26b) of the decorative cover (2B) is placed in the inner and outer overlapping state. along the front end of the nozzle casing (20) screwed onto the nozzle casing (20) and the front end of the ring-shaped female threaded part (11), extending in a folded manner up to the outer circumferential surface of the ring-shaped female threaded part (11). 26b) covers the front end of the nozzle casing (20) and the ring-shaped female threaded portion <11), and the throat fixing member (25), which will be described later, is attached to the rear end of the decorative cover (26).
) is fixed.

Further, as shown in FIGS. 4 and 5, an intake vibe connecting portion (20) is provided on the central peripheral wall of the nozzle casing (20)
b) is opened, and the other end of an intake pipe (12), one end of which is connected to the air intake part (5) (see Figure 1), is removably connected to the connection part (20b). .

In addition, a third
As shown in the figure and FIG.
A bath water bullet conveying vibrator (11) is removably connected to the body (see Fig. 1). (n) indicates the bath water inflow direction.

The connecting portions (20b) and (20c) are opened at different phases by 90 degrees in the circumferential direction of the nozzle casing (20).

Further, the throat part (60) has a throat (24),
It consists of a throat fixing member (25) that supports the throat (24) in a freely swingable manner and the front part of the valve seat forming cylinder (21).

The throat (24) has a base (24a) having a spherical outer circumference, and the base (24a) is connected to the inner circumference of the throat fixing member (25) and the inner circumference of the valve seat forming cylinder (21). Throat support surfaces (25a) (21b) formed on the respective surfaces.
) is slidably fitted in surface contact with the base (2
A cylindrical tip (24b) with a smaller outer diameter than 4a)
The distal end portion (24b) is made to protrude forward, and the distal end portion (24b) can be manually adjusted to swing in any direction up, down, left, or right around the base (24a).

Moreover, a certain sliding resistance acts on the base (24a) of the throat (24) from the throat support surfaces (25a) (21b), making it possible to stop the throat (24) at any swing angle. .

The base (24a) of the throat (24) is fitted onto the throat support surface (21b), and the top (24'a)
) is located on the same vertical plane as the front end surface of the valve seat forming cylinder (2 pieces), and from the center of the base (24a) to the rear end surface (2
4'b) is formed to be approximately half the radius of the base (24a), and the throat support surface (21b) is formed from the inside of the bathtub body (1).
) can be easily fitted into the throat base (24a).

Moreover, the base (24a) of the throat (24) has an inner circumferential surface of the front half having substantially the same diameter as the inner diameter of the distal end (24b), and an inner circumferential surface of the substantially rear half having an enlarged diameter toward the rear. Base (2
4a) The rear end opening diameter is made larger than the inner diameter of the valve seat forming cylinder (21), so that when adjusting the swing of the throat (24),
This allows the hot water to flow smoothly into the throat (24) from the valve seat-forming cylindrical body (21).

Further, the tip end (24b) of the throat (24) extends the tip end surface to the vicinity of the front end surface located inside the bathtub body (1) of the decorative cover (28), and the outer circumferential surface of the end portion (24b) and the makeup A throat swinging operation space (28) is formed between the cover (2B) and the inner peripheral surface thereof.

The throat swinging operation space (28) is
The throat (24) is formed in a size that allows the bather to swing the throat (24) in any direction by pinching the tip (24b) of the throat (24).

Further, the throat fixing member (25) fits into the front inner peripheral surface of the nozzle casing (20) via the positioning groove,
The front surface (25b) was fixed to the rear end of the decorative cover (2B) via a fixing ring (28), and the inner peripheral surface (25a) corresponded to the front spherical surface of the base (24a) of the throat (24). It is formed into a concave spherical surface, and the inner peripheral surface (25a) supports the front outer peripheral surface of the base (24a) of the throat (24) in slidable surface contact.

Further, the valve seat forming cylinder (21) is connected to the nozzle casing (2
0) into the central part of the nozzle casing (20) through the front end opening, and the rear end surface is located near the bullet-feeding vibe connecting part (20c), and is formed on the front outer circumferential surface. The protruding stepped portion (21b) is attached to the nozzle casing (20).
engages with a concave step (201) formed on the inner circumferential surface of the cylinder to restrict backward sliding and rotation around the axis;
A jet flow forming part (50) provided in the valve seat forming cylinder (21) and an air mixing part (70) provided in the nozzle casing (20)
Aligning with.

A throat support surface (21c) having a concave spherical surface corresponding to the rear spherical surface of the base (24a) of the throat (24) is formed on the front inner circumferential surface of the valve seat forming cylinder (21). The throat (21c) is attached to the throat (21c) as described above.
The base (24a) of the throat (24) is fitted in surface contact with the base (24a) of the throat (24), whose forward sliding is regulated by the throat fixing member (25). 21) is restricted from sliding forward.

In addition, the jet flow forming part (50), which is a main part of the present invention, is an air mixing part (70) provided in the middle part of the valve seat forming cylinder (21).
, a valve seat (21a) forming a jet flow forming flow path (27) immediately behind the air mixing part (70), and the valve seat (21a)
a) A valve body (22) for adjusting the jetting amount that opens and closes the jet flow forming channel (27) by coming into contact with and separating from a), and a motor (Ml) for opening and closing the valve body that opens and closes the valve disc for adjusting the jetting amount (22). and a rear wall forming plate (29) that supports the motor (old).

As shown in FIG. 4 and FIG. An air inflow path (21d) is formed, and the air inflow path (21d)
The inner intake pipe connecting part (20b) side and the connecting part (20b)
On the side opposite to b), there are air inlets (21e) (
211') is provided, and the same air inlet (21e) (21
f') to communicate between the inside of the valve seat forming cylinder (21) and the intake pipe connecting part (20b).
1) an air entrainment section (70) is formed in the interior. (a) shows the air inflow direction.

In addition, a valve seat (21a) is provided coaxially with the valve seat forming cylinder (21) in the middle part of the valve seat forming cylinder (21) located immediately behind the air mixing part (70), so that the valve can be opened. A jet flow forming channel (27) is formed on the axis of the valve seat (21a), and the valve seat (21a)
21a) A jet QM regulating valve in which a right-angled corner (21'a) is formed at the inner peripheral edge of the rear end, and an inclined surface (22a) is formed at the outer peripheral edge of the tip at the same corner (21''a). The opening/closing amount (adjusting the ejection amount and ejection pressure) of the jet flow forming flow path (27) can be adjusted by moving the body (22) toward and away from the ejection amount adjusting valve body (22).

In addition, as shown in Fig. 6, the valve body opening/closing motor (Ml) has a cylindrical motor casing (23) removably attached to the rear wall forming plate (29), A cylindrical coil (23a) is provided coaxially with the nozzle casing (20), and the coil (23a)
By arranging a cylindrical magnet (23b) inside and exciting the coil (23a), the magneto-soto (23
b) is capable of forward and reverse rotation, a cylindrical rotor nut (23c) is concentrically and integrally attached within the magnet (23b), and the rotor nut (23e) is attached to a bearing (23e).
23c), the rotor nut (
23c), a valve body support rod (23d) is inserted into the valve body support rod (23d) so as to be slidable forward and backward.

A spiral rotor nut side ball groove (23k) is formed on the inner circumferential surface of the rotor nut (23c), while a spiral rotor nut side ball groove (23k) is formed on the outer circumferential surface of the valve body support rod (23d) in the same direction as the rotor nut side ball groove (23k). A spiral rod side ball groove (231m) is formed, and a plurality of balls (23n) are rotatably interposed between the opposing rotor nut side ball groove (23k) and rod side ball groove (23m). There is. (23g) is a rotation regulating piece that prevents the valve body support rod (23d) from rotating with the rotor nut (23c).

With this configuration, the valve body support rod (23d) can be moved forward and backward steplessly over a minute distance via the ball (23r+) in conjunction with the rotor nut (23b) that rotates integrally with the magnet (23c). There is.

Moreover, the tip of the valve body support rod (23d) is connected to a rod insertion hole (2) provided in the center of the rear wall forming plate (29), which will be described later.
9c) and extends into the nozzle casing (20), and a jetting amount adjusting valve body (22) is attached to the tip of the valve body support rod (23d).

Further, at the rear end of the valve body support rod (23d), there is provided a valve body (22 ) is equipped with a valve reference position detection sensor (23r) that detects the opening/closing amount (adjusts the jetting amount and jetting pressure).
The detection sensor (23F) is a reference position Hall element (23F).
1) and a reference position detection magnet (23j) attached to the rear end position of the valve body support rod (23d) facing the reference position Hall element (231).

The valve body reference position detection sensor (23r) includes a reference position Hall element (231) and a reference position detection magnet (
23j) is converted into an electrical change and sent to the control unit (C), which detects the reference position (for example, the fully open position) and controls the motor for opening and closing the valve body. The number of pulses (rotation angle) from the (old) reference position is calculated.

(23h) is a cord connected to the coil (23a) and the valve body opening/closing amount detection sensor (231').

With this configuration, the valve opening/closing motor (old)
The coil (23a) is energized to rotate the rotor nut (23b) together with the magnet (23c), and in conjunction with the rotation of the rotor nut (23b), the valve body support rod (23d) is rotated.
The valve body (22) for adjusting the jetting amount attached to the tip of the valve body support rod (23d) is moved forward and backward by moving the valve body (22) to the valve seat (21a).
It is possible to adjust the amount and pressure of hot water spouted into the bathtub body (1) by moving the bathwater into and out of the bathtub body (1).

Moreover, the opening/closing amount of the ejection amount regulating valve body (22) is as follows:
The result of the reference position detected by the valve body reference position detection sensor (231') is sent to the control unit (C), and the control unit (C) controls the energization to the coil (23a) based on the result. Appropriately open and close the ejection amount regulating valve body (22),
The amount and pressure of hot water jetted into the bathtub body can be finely adjusted.

In addition, as the valve body opening/closing motor (old), it is possible to move the valve body (22) for regulating the amount of ejection amount steplessly forward and backward over a minute distance to finely adjust the amount and ejection pressure of the bath water. Alternatively, piezoelectric actuators can also be used.

Further, a waterproof cover (40
) is installed. This waterproof cover (40) surrounds the tip of the valve body support rod (23d) and extends from the valve body support rod (23d).
23d) The motor for opening and closing the valve body (M
The mounting flange (30) provided on the periphery of the rear end is watertightly attached to the front surface of the rear wall forming plate (29) in the nozzle casing (20). Installed in condition.

The waterproof cover (40) is attached to the valve body support rod (23).
It is configured in a bellows shape so that it can expand and contract in the front and back direction in conjunction with the forward and backward movement of d).

Further, the above-mentioned valve body (22) for regulating the ejection amount, which is formed integrally with the waterproof cover (40), is molded from a synthetic resin such as polytetrafluoroethylene or nylon 11 in this embodiment.

Further, (44) is a cover for preventing hair from getting caught in the bellows-shaped waterproof cover (40), and the cover (44) is used for installation. It can also be detachably attached to the flange (30) and removed when unnecessary. Also, (20m) is an air breathing port.

Further, the rear wall of the nozzle casing (20) described above is a rear wall forming plate (29) that is separate from the nozzle casing (20).
), and the rear wall forming plate (29) has a disc shape with approximately the same diameter as the rear end inner diameter of the nozzle casing (20), and is attached from the front end opening of the nozzle casing (20). It is fitted and installed in a removable manner.

Then, the rear wall forming plate (29) is attached to the nozzle casing (29).
0) Rear wall forming plate regulating piece (20g) formed on the inner peripheral surface of the rear end
) to restrict rearward sliding by abutting and locking the rear peripheral edge, and at the same time, the front surface Sliding forward is restricted by abutting and locking the peripheral edge. (29a) is a packing provided on the peripheral surface of the rear wall forming plate (29).

Moreover, the outer diameter of the motor casing (23) described above is
It is formed to have a smaller diameter than the inner diameter of the rear end opening (20k) of the nozzle casing (20) formed by the inner peripheral surface of the rear wall forming plate (29).

With this configuration, the rear wall forming plate (29) can be attached to the nozzle casing (20) by removing the valve seat forming cylinder (21) that restricts forward sliding of the rear wall forming plate (29). It can be removed from the front end opening of the
The valve body opening/closing motor (old) installed in 9) has a smaller diameter than the inner diameter of the rear end opening (20k) of the nozzle casing (20), so it must be removed as an integral part with the rear wall forming plate (29). be able to.

In addition, the valve body opening/closing operation motor (Ml) is attached to the rear wall forming plate (29) on the outside of the bathtub body (1) as necessary.
It can also be removed.

In addition, the other jet nozzles (3) and (4) are also connected to the jet nozzle (
It is constructed in the same manner as 2), so that the amount and pressure of the bath water can be finely adjusted.

Furthermore, the jet nozzles (2), (3), and (4) can be adjusted using a remote controller (30) (see FIG. 1).

In addition, as shown in FIG. 7, the air intake section (5) described above communicates the negative ends of the intake vibes (12) and (12) with the front and rear walls of the intake vibe connection section (83) provided at the center of the bottom surface, respectively. The air taken in from the air intake port provided at the top of the air intake part (5) is sent to each intake pipe (12) through the intake vibe connection part (83), and the air is connected to each intake pipe (12). 12) Each jet nozzle (2) from (12)
(3) Air can be supplied to (4).

In Fig. 7, (84) beam actance type silencer, (
Reference numeral 85) is a check valve, which prevents the bath water from flowing back into the intake vibe (12).

(f) Effects In the present invention, a motor for opening and closing the valve body is provided in the jet flow forming part, and the opening and closing amount of the valve body for regulating the amount of spout is adjusted by the motor for opening and closing the valve body, thereby adjusting the amount of spout of bath water.・Since the ejection pressure can be changed automatically, 1. Even when there are a plurality of such ejection nozzles, no trouble arises.

In addition, while the bath water is spouting out, the opening and closing amount of the valve body can be adjusted using the motor that operates the opening and closing operation of the valve body, and the amount and pressure of the hot water spout can be automatically changed. Settings for the amount and pressure of hot water can be changed quickly and reliably.

In addition, since the motor for opening and closing the valve body is disposed in the axial direction of the nozzle casing, the motor can open and close the jet flow control valve body in the axial direction of the nozzle casing. It is possible to stabilize the jet flow properties of the bath water flowing along the line.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a bubble-generating bathtub equipped with a jet nozzle according to the present invention. FIG. 2 is a plan view of the bubble-generating bathtub. Figure m3 is an enlarged sectional view of the jet nozzle. FIG. 4 is a rear view of the same jet nozzle. FIG. 5 is a sectional view taken along the line II in FIG. 3. FIG. 6 is an enlarged sectional view of the motor for opening and closing the valve body. Figure TS7 is a sectional view of the intake pipe. :Bubble generating bathtub: Circulation pump control unit Bathtub body Leg side spout nozzle Back spout nozzle Ventral spout nozzle Bath water suction pipe Hot water bullet feeding vibe

Claims (1)

[Scope of Claims] 1) A jet flow forming part that is attached to a bathtub body and spouts out bath water mixed with air bubbles into the bathtub body is connected to and separated from a valve seat that forms a jet flow path, and the valve seat. Consisting of a valve body for adjusting the jet flow rate that opens and closes the jet flow forming flow path, and a motor for opening and closing the valve body that opens and closes the valve body for controlling the jet flow rate, it is possible to automatically adjust the jet volume and pressure of the bath water. The ejection nozzle structure of the bubble-generating bathtub. 2) The jet nozzle structure for a bubble-generating bathtub according to claim 1, wherein the valve body opening/closing operation motor is disposed in the axial direction of the nozzle casing surrounding the jet flow forming section.