JPH0630190Y2 - Bubbly jet fitting - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is intended to give a user a massage-like effect by jetting bubbles from the tub wall of a bathtub or the wall surface of a sitting surface of a pool. The bubbly jet fitting.

(Prior art and its problems) Conventionally, as shown in FIG. 6, for example, as shown in FIG. 6, in this type of bubbly jet fitting, one end of the main body case (100) has a mounting hole (20
1) and the other end is attached to a circulation pipe (300) arranged outside the bath (200), and a bubble flow toward the inside of the bath (200) in front of the inner surface of the main body case (100). A bubbly jet nozzle (101) for ejecting water is installed, and behind it is a jet that ejects hot water from the circulation pipe (300) from the primary side (400) of the hot water flow path to the secondary side (500). The nozzle (102) is provided, and the tip end ejection port (102 ') of the ejection nozzle (102) always ejects a constant amount of hot water.

By the way, in the present situation, the tactile sensation of the bubbly flow received by each user, that is, from an old man to a child, etc., was different for each user.

However, in the above-mentioned conventional technique, since the opening diameter of the ejection port (102 ') is constant and only a constant ejection amount and ejection pressure can be obtained, the strength and weakness of the bubbly flow cannot be adjusted, and it can be used for elderly people to children. The bubbly flow could not be ejected in order to obtain the tactile sensation required by each user.

(Problems to be Solved by the Invention) The present invention has been made in view of the above problems of the above-described conventional technology, and an object of the present invention is to provide a bubble flow jet capable of adjusting a jet amount and a jet pressure. Provide metal fittings,
It is to meet the needs of each user.

(Means for Solving the Problems) The technical means made by the present invention in order to achieve the above-mentioned object is to connect a mounting hole opened in a tank wall and a circulation pipe arranged outside the tank, and A main body case in which the air supply pipes are connected to each other and connected to the inner surface of the main body case so as to be rotatable, an ejection nozzle is provided inside, and an air supply hole communicating with the air supply pipe is opened in the rear part thereof. A cylindrical nozzle case and a flow passage throttle valve, the flow passage throttle valve is formed at the rear end of the nozzle case so as to close the circulation flow passage and has a plurality of outlets. A valve-shaped valve portion and a disk-shaped valve seat that is provided in sliding contact with the disk-shaped valve portion so as to close the circulation passage behind the nozzle case and has a plurality of inlets, The inlet and the nozzle are opened on the same circumference. That is, an operation protrusion is formed on the front end of the case.

(Operation) By the technical means described above, when a hand is inserted through the attachment hole of the tank wall, the operation projection at the tip of the nozzle case is picked up, and rotated rightward or leftward, the nozzle case is pivotally supported. The valve at the rear end slides on the valve seat while rotating in the area, the valve opening of the flow path throttle valve is adjusted, and the jet flow with the adjusted jet pressure and jet amount is jetted toward the hollow portion. As a result, a regulated bubble flow is jetted from the air feed pipe through the air feed hole by the negative pressure of the jet flow to be mixed with the air, and the bubble flow jet nozzle at the front end is directed into the tank.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The body case (1) has a mounting hole (a ₁ ′) provided at one end thereof in a recess (a ₁ ) of the bath wall (a) of the bath (A).
The other end is attached to a circulation pipe (not shown) arranged in the space (C) outside the bath (A), and the main body case (1) has a substantially cross-section. -Shaped hollow cylinder with a flange (2) in the circumferential direction on the outer peripheral surface of the edge of the opening (1a ') of the cylinder (1a) having a large opening diameter.
And a communication hole (3) communicating with the internal space (1 ') is formed behind the flange (2), and a step (4) is formed on the inner surface in the circumferential direction toward the center. In addition, the threaded portion (1a ″) is engraved from the opening (1a ′) to the step (4), and the cylindrical portion (1b) having a small opening diameter has a boundary with the cylindrical portion (1a). A hole (1b ') communicating with the internal space (1') is formed near the portion, and a screw portion (1b ") is formed at the rear of the inner peripheral surface to form the hole (1b '). An air supply pipe (5) is inserted into the.

The air supply pipe (5) is formed in a cylindrical shape with upper and lower surfaces opened, and its upper opening end (5a) is directed to the space portion (C) and its flow path is formed.
(5b) communicates with the internal space (1 ') of the main body case (1) and is inserted into the opening (1b').

The height of the air supply pipe (5) may be within the upper limit of the bath (A) (lower side of the upper edge surface), and its height is not limited.

It said body case (1) is _'in an opening of the cylindrical portion (1a) (1a attachment hole of the tank wall (a) (a _1)' As) faces into the bath (A), bathtub (A ), The packing (7) and (7) are formed by the flange portion (2) and the flange portion (6a) of the cover (6) screwed to the screw portion (1b ″) of the cylindrical portion (1a) from the outside. Sandwiching the tank wall (a) through the tank wall (a)
It is fixed to the screw part (1b) of the rear tube part (1b).
It is arranged by screwing a circulation pipe to b ″).

Then, the pivot pin (9) is inserted and fixed from above the communication hole (3) of the tubular portion (1a), and the nozzle case (8) is rotatably pivoted at its tip.

Nozzle case (8) has a cross section A hollow cylindrical body having a hollow portion (8 ') serving as a secondary side flow passage (y) which also functions as a mixing chamber for mixing hot water into the hot water discharged from the primary side flow passage (x). The operation projection (knob) (10) is formed on the opening tip (8a ') of the cylindrical portion (8a) having a large opening diameter, and the pivotal support is provided on the outer peripheral surface behind the operation projection (10). Recessed groove in which the tip of the pin (9) is pivotally supported
(8a ″) is engraved in the circumferential direction, and a step portion (11) is provided in the middle of the inner surface of the cylindrical portion (8a) toward the center and the center portion of the step portion (11). Nominal hemispherical nozzle receiving surface (12)
And the bubble receiving nozzle (19) is formed on the nozzle receiving surface (12).
Is provided.

A screw part (22) is formed on the entire inner surface from the opening tip part (8a ') to the step part (11).

The operation projection (10) is, for example, one or a plurality of rectangular projections provided at the opening tip (8a ') of the tubular portion (8a) toward the inside of the bathtub, and the shape is not limited to the above-mentioned shape. There is no such thing.

On the other hand, the cylindrical portion (8b) having a small opening diameter has an annular groove (13) on its outer peripheral surface for guiding the air from the air supply pipe (5).
Is formed at the rear of the annular groove (13) at a required position on the bottom of the annular groove (13) with the required width left behind at the rear end.
Or, a plurality of air supply holes (14) are communicated with the hollow portion (8 ') and are bored, and the rear end portion serves as a valve portion (15).

In this case, the annular groove (13) is formed larger than the opening width of the opening (5c) of the air supply pipe (5).

The valve portion (15) is formed in a generally disk shape at the rear end of the nozzle case (8) arranged in the main body case (1), and the hollow portion (8 ') of the nozzle case (8). ) And a plurality of outlets (15 ') (in the present embodiment, four in a circular plane shape) are provided, and the secondary side flow path (y) is provided together with the valve seat (16) provided behind the outlets (15'). A flow path throttle valve (17) for ejecting the circulating water from the primary side flow path (x) toward the side.

By the way, (23) is a packing (O-ring).

The valve seat (16) has a substantially disk shape as a whole, and an inlet (16 ') communicating with the outlet (15') of the valve portion (15) on the end face on the bath side thereof (in the present embodiment, Same shape as the exit (15 ') ... 4
Are provided on the same circumference as the outlet (15 '), and the rear hollow part (16 ") is tapered so as to expand outward, and the screw part (18) is formed on the outer peripheral surface. To do.

Therefore, in this embodiment, the same number (4) of outlets (15 ') and inlets (16') of the valve portion (15) and valve seat (16) are provided on the same circumference. Each exit (15 ') and entrance (16')
When and are communicated with each other in the fully open state, the valve opening of the throttle valve (17) becomes maximum.

Further, the inlet (16 ') of the valve seat (16) is the outlet of the valve section (15).
(15 ') ... As long as each is fully opened, its shape and quantity do not matter.

Then, the screw part (18) formed on the outer peripheral surface is screwed into the screw part (1b ″) of the main body case (1) and moved forward to move the valve part.
It is arranged at a position where (15) is in sliding contact.

A bubble jet nozzle (19) is attached to the nozzle receiving surface (12) of the tubular portion (8a) by using a stopper (20).

The bubble jet nozzle (19) has a tip (1
9a) is formed into a cylindrical shape and protrudes toward the inside of the recess (a ₁ ), and the outer peripheral surface of the base is bulged to form a spherical shape, which is a rotary nozzle. The surface (12) is brought into surface contact with the spherical surface portion (19b) of the bubble flow ejection nozzle (19) so that the bubble flow ejection nozzle (19) can rotate smoothly.

Further, the total length of the bubble jet nozzle (19) is set so as not to project from the tip of the main body case (1).

An annular rubber packing (21) (O-ring) is interposed between the stopper (20) and the spherical surface portion (19b) of the bubble jet nozzle (19).

The stopper (20) is flanged from the top to the center.
(20a) is formed into a cylindrical shape, a threaded portion (20b) is formed on the entire outer peripheral surface thereof, and is screwed into the threaded portion (22) of the tubular portion (8a) to form a bubble jet nozzle (19). ) Is attached rotatably.

A fixed nozzle may be used as the bubble jet nozzle (19).

Next, the operation will be described. The mounting hole (a) of the tank wall (a)
_The bather inserts his / her hand from ₁ '), and the nozzle case (8)
When the operation protrusion (10) at the tip is picked up and rotated to the right or left, the nozzle case (8) has a groove (8a ″) provided on the outer periphery thereof by the pivot pin (9). Since it is pivotally supported, the valve section (15) at the rear end rotates while rotating at that position, and the valve seat (16)
Slide.

Then, the outlet (15 ') of the throttle valve (17) consisting of the valve portion (15) and the valve seat (16) and the inlet (16') are misaligned or matched, and the valve opening is adjusted. Then, the jet flow whose jet pressure and jet amount are adjusted is jetted from the primary side flow passage (x) toward the secondary side flow passage (y). That is, the larger the difference between the openings, the smaller the valve opening of the throttle valve (17), the smaller the ejection amount and the higher the ejection pressure.

Therefore, by arbitrary rotation operation of the nozzle case (8),
It is mixed with the air drawn from the air supply pipe (5) through the air supply hole (14) by the negative pressure of the jet flow,
The adjusted bubble flow is ejected toward the inside of the bathtub (A) from the bubble flow ejection nozzle (19) at the front end.

During this bubble flow adjustment operation, the nozzle case (8)
The bubble jet nozzle (19) arranged at the front end of the bath does not project into the bathtub (A) because it can be rotated in the body case (1) from beginning to end. )
There is no risk of damage to the.

Although the present embodiment has been described with respect to the one provided in the bathtub (A), for example, it is provided on the wall surface of the seating surface that is provided by being recessed in the tank wall of the pool, and the swimmer sits down to rest due to fatigue during swimming. The person may be given a massage effect.

(Effect of the Invention) Since the present invention has the above-mentioned configuration, it has the following effects.

When the nozzle case is swung to the right or left by pulling the operation projection at the tip of the nozzle case, the valve part at the rear end turns while slidingly contacting the rear valve seat, and the valve opening of the throttle valve is adjusted. Since it can be adjusted, it is possible to eject a bubbly flow to obtain a tactile sensation that meets the needs of each user, from old people to children. It is very useful because it can meet the needs.

In addition, it is possible to easily adjust the strength of the bubble flow easily because it can be easily adjusted according to the taste of each user simply by inserting the hand from the mounting hole in the tank wall and pulling out the projection for operation and rotating the nozzle case. It is also very convenient in terms of usability.

Further, since the opening degree of the water flow valve is adjusted by the plurality of outlets and the inlets, a plurality of water streams flow into the mixing chamber, which causes a negative pressure at the outlet of the air supply hole to generate a uniform bubble flow. can get.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the bubbly jet nozzle of the present invention, FIG. 2 is a sectional view taken along line (II)-(II) of FIG. 1, and FIG. 3 is (III) of FIG. -(III) line sectional view, FIG. 4 is a front view, FIG. 5 is a rear view, and FIG. 6 is a vertical side view showing a conventional example. In the figure, (A): bathtub, (a ₁ ′): mounting hole (x): primary side flow path, (y): secondary side flow path (1): main body case, (5): air supply pipe (8): Nozzle case, (8 '): Hollow part (8a "): Groove, (9): Pivot pin (10): Operation protrusion, (14): Air supply hole (15): Valve part , (15 ') ...: Outlet (16): Valve seat, (16') ...: Inlet (17): Throttle valve (19): Bubble jet nozzle

Claims (1)

[Scope of utility model registration request] 1. A main body case, which is connected over a mounting hole formed in a tank wall and a circulation pipe arranged outside the tank, and is connected to an air supply pipe communicating with a required portion, and is rotatable in an inner surface of the main body case. And a flow path throttle valve. The flow path throttle valve is configured by a cylindrical nozzle case, which is pivotally supported by The valve is a disc-shaped valve portion formed at the rear end of the nozzle case so as to close the circulation flow path and having a plurality of outlets, and a disc-shaped valve so as to close the circulation flow path at the rear of the nozzle case. A disc-shaped valve seat that is provided in sliding contact with the valve portion and has a plurality of inlets is formed, and the outlets and the inlets are formed on the same circumference, and an operation protrusion is provided at the front end of the nozzle case. A bubbly blowout metal fitting characterized by being formed.