JPH0722263Y2 - Air adjustment valve for jet bath - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air adjusting valve for adjusting an amount of supply of air that becomes bubbles in a jet bath in which bubbles are ejected into a bathtub.

[0002]

2. Description of the Related Art A jet bath, as shown in FIG. 2, is provided with a water suction pipe 21 and a discharge pipe 22 which are circulation paths, a main unit 23, and an air adjusting valve 24.

Both the water suction pipe 21 and the discharge pipe 22 are connected to a bath 25. Of these, a jet nozzle 26 for making the reflux water into a jet jet containing bubbles is provided at the reflux water outlet of the discharge pipe 22. The jet nozzle 26 sucks air through the air adjusting valve 24 by the discharge force of the reflux water to form bubbles.

The main body unit 23 includes a circulation pump and a controller. The circulation pump circulates the water in the bath 25 through the water suction pipe 21 and the discharge pipe 22 which are circulation paths.

The air adjusting valve 24 is for adjusting the amount of air supplied to the jet nozzle 26, and the supply air flows into the jet nozzle 26 from the inside of the valve through an air pipe 27 connected thereto. This air adjustment valve 24
Is provided near the bathtub 25 so that a bather can operate it in the bathroom, and is usually attached to the upper edge 25a of the bathtub 25.

[0006]

An invention is the way, the conventional whirlpool, as an air control valve 24, as or rotary type with rotating spool, real Hei 2-102237
Although the configuration shown in the publication is used, these
In the conventional valve, since the air flows through a curved path, the air flow inside the valve is complicated, and a large intake noise is generated when inhaling the air.

For this, as shown in FIG. 3, it is considered to use a needle valve 28 as the air adjusting valve.
In this needle valve 28, the flow path of the air inside the valve is linear, the air flow is smooth, and the intake noise is significantly reduced.

However, in the needle valve 28, in order to move the valve element 29 forward and backward, the valve shaft 30 is provided with a male thread portion 31,
Further, it is necessary to provide the female screw portion 33 on the side of the casing 32, and there is a screwing portion for female and male screws.

On the other hand, since the place where the air-adjusting needle valve 28 is installed is usually the bathtub upper edge 25a,
Hair and hot water flow into the valve along with hot water.
As a result, foreign matter such as hair may be caught in the threaded portion inside the valve, making it inoperable.

Further, the conventional rotary type described above is also used.
Noya, the configuration shown in Japanese Utility Model Laid-Open No. 2-102237
In addition, the needle valve type shown in FIG.
Also, whether the part of the operation knob for adjusting the air is the upper edge of the bathtub
It has a protruding structure. Therefore, when bathing
Work knob hits the body or bathes on the upper edge of the bathtub.
It is inconvenient to set the tank lid. Furthermore
In addition, the aesthetic appearance will be impaired from the viewpoint of design.

The present invention has been made in view of the above-mentioned problems, and suppresses the generation of intake noise and prevents inoperability due to foreign matter being caught in the screwed portion.
In addition, it does not hinder bathing and is aesthetically pleasing.
The challenge is to make things easier.

[0012]

In order to achieve the above object, the present invention provides a jet bath air having a casing having an open upper end and an operating knob provided on the upper end open side of the casing. The adjustment valve has the following configuration.
It

That is, according to the present invention, the operation knob is
Has an air inflow gap formed between it and the inner wall of the casing.
Is loosely fitted in the casing, and
The upper end of the valve shaft is coaxially connected to the operating knob.
The shaft opens and closes the air outlet of the casing at its lower end.
Needle-shaped valve body is provided, and the middle part is
It is screwed to the shaft support that is fitted to the housing.
The shaft support is provided with the air inlet gap and the air outlet.
While an air through hole that communicates with the
Is a cylinder up to a position that covers the screwing point between the valve shaft and the shaft support.
It is configured to have a skirt that hangs in a shape .

[0014]

In the above structure, the air suction passage is
From the upper open side of the housing
Directly through the wall to the air outlet at the bottom of the casing.
Due to the linear shape, the generation of intake noise is greatly reduced.

Even if foreign matter such as hair flows into the casing, the screwing portion between the operation knob side and the casing side is covered with the skirt, so that the foreign matter is caught in the screwing portion. I can't wait.

Further, the casing is fitted on the upper edge of the bathtub.
The operating knob is loosely fitted in the casing.
Since it does not protrude from the upper edge of the bathtub, there is an obstacle during bathing.
Not only that, but also in terms of aesthetics.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiment shown in FIG.

FIG. 1 is a vertical sectional view of an air regulating valve according to an embodiment of the present invention.

As shown in the figure, the air regulating valve of this embodiment is a needle valve and comprises a casing 1, an operating knob 2, a needle-shaped valve element 3 and a shaft support 4.

The casing 1 has an open upper end, and is attached to the upper edge 5 by being fitted into an attachment hole formed in the upper edge 5 of the bath. On the open side of the casing 1, there is an air inflow gap 6 opened upward between the operation knob 2 provided inside the casing 1 and an air outflow port 7 in the lower part. An air pipe (not shown) leading to the jet nozzle is connected.

The operation knob 2 can be rotated about the vertical axis within the upper end open portion of the casing 1, and has a cylindrical skirt 8 on the outer peripheral side thereof.

The valve element 3 advances and retreats with respect to a valve opening 9 formed in the lower part of the casing 1, and is coaxially connected to the operating knob 2 via a valve shaft 10 which is integral with the valve element 9. A male screw portion 11 is formed in the middle of the valve shaft 10.

The shaft support 4 is for supporting the valve shaft 10 at a central position in the casing 1, and includes an inner cylinder 4a and an outer cylinder 4.
b has a double cylinder structure and the outer cylinder 4b allows the casing 1
It is fitted and fixed to the inner circumference of. Inner cylinder 4a and outer cylinder 4b
A through hole 12 for air is formed in the projecting portion between and. A female screw portion 13 is formed on the inner cylinder 4a, and a male screw portion 11 of the valve shaft 10 is screwed onto the female screw portion 13. By this screwing, the operation knob 2 and the valve shaft 10 are integrated. As the valve body 3 rotates, the valve body 3 moves back and forth with respect to the valve opening 9. The skirt 8 of the operation knob 2 is located on the outer circumference of the upper side of the inner cylinder 4a, and the inner cylinder 4a and the valve shaft 1
It covers the screwing point with 0.

Numeral 14 is a packing and numeral 15 is a fixing nut.

In the above structure, when negative pressure acts on the outlet 7, air is sucked from the upper portion of the casing 1,
This air flows into the casing 1 through the inflow gap 6 between the casing 1 and the operation knob 2, passes through the gap between the valve body 3 and the valve opening 9 from the air through hole 12, and flows out from the outflow port 7 to the jet nozzle. To the side of.

In this case, the air flow path inside the casing 1 is straighter than that of the rotary type valve, the air flow is smooth, and a large intake noise is not generated.

When the operation knob 2 is rotated,
The male screw part 11 rotates with respect to the female screw part 13, the valve body 3 advances and retreats with respect to the valve port 9, and the gap with the valve port 9 widens or narrows. With this, the amount of air supplied to the jet nozzle side is adjusted.

Next, when foreign matters such as hair and hot water flow into the casing 1 together with hot water, these foreign matters are
Since the skirt 8 passes through the outside of the skirt 8, it does not reach the screwing points of the male and female screw portions 11 and 13 inside thereof.

Further, since the inner side of the skirt 8 is a closed air reservoir at the upper part, hot water does not flow in, and from this point also, foreign matter is prevented from entering the screwed portion. Therefore, foreign matter is not caught in the screwed portion,
No inoperability due to foreign matter being caught.

[0030]

As described above, according to the present invention, the generation of intake noise is significantly reduced, and since foreign matter does not enter the screwing point, foreign matter is not caught in the screwing point. It is possible to prevent inoperability due to foreign matter being caught. In addition, if the casing is fitted into the upper edge of the bathtub,
If the operation knob is not protruding from the upper edge of the bathtub,
The operating knob may not hit your body when bathing.
And there is no obstacle in setting the bathtub lid.
It is also aesthetically pleasing.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an air regulating valve according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a jet bath.

FIG. 3 is a vertical sectional view of a conventional air regulating valve.

[Explanation of symbols]

 1 Casing 2 Operation Knob 3 Valve Body 4 Shaft Support 8 Skirt 11 Male Threaded Part 13 Female Threaded Part

Claims (1)

[Scope of utility model registration request] 1. An upper end is open and an air outlet is provided at the lower end.
In an air regulating valve for a jet bath , which includes a scraped casing and an operating knob provided on the upper end open side of the casing, the operating knob is an inner wall of the casing.
So that an air inflow gap is formed between
It is loosely fitted in the valve and the operating knob is
The upper end is coaxially coupled and this valve stem has a casing at its lower end.
A needle-shaped valve element that opens and closes the air outlet of the
The shaft that is mounted on the casing
The shaft support is screwed onto the support and the air support
An air through hole that connects the inflow gap and the air outflow port to each other is formed.
On the other hand, the operating knob includes the valve shaft and the shaft support.
An air regulating valve for a jet bath, which is provided with a skirt that hangs in a cylindrical shape up to a position that covers the screwing point of.