JPH0131222Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a bubble bath jet device, that is, a device that jets water mixed with air into the bathtub to give bathers an effect similar to that of pine surge. This invention relates to an ejection device for a bathtub.

(Prior Art) Conventionally, various structures have been known as this blowing device for bubble bathtubs, and the applicant of the present application also proposed
No. 57-145803, as shown in Figure 6, has been filed.

To explain the example shown in Fig. 6, the rotary nozzle 3 is rotated to the opening on the bathtub A side of the mounting body 2, which is fixed to the mounting opening 1 provided on the bathtub wall a of the bathtub A with the bathtub wall a in between. The nozzle holder 9 and the gasket 6 are used to attach the nozzle 3 to one end.
A cylindrical cover body 8 has a bottom plate 8' having a through hole 4 through which the cylindrical part 3a passes. Attach the bottom plate 8' to the bottom wall of the opening of the main body 2 by screwing screws 1.
0, the opening can be attached to the cover body 8.
covered with

Therefore, in the case shown in FIG. 6, the opening of the mounting body 2 needs to be large enough to allow a hole for the screw 10 to be provided in the bottom wall, so the mounting body 2 becomes large and the cost is high. Not only will it become;
The mounting body 2 occupies a large space on the bathtub wall a, making it difficult to use.

Also, the cover body 8 is installed between the opening and the nozzle 3.
It must be screwed in with a screwdriver in a narrow space between the nozzle 3 and the cylindrical portion 3a, which not only makes assembly difficult but also poses a risk of damaging the nozzle 3.

Therefore, it may be possible to screw the cover body 8 directly onto the inner peripheral surface of the opening without using the screws 10, but in this case, the gasket 6 disposed on the back side of the bottom plate 8' The bottom plate 8' was twisted and cut due to the rotation of the bottom plate 8' when it was screwed on.
There was a risk that the support of the nozzle 3 by the packing 6 would become unstable and the nozzle 3 would shake.

(Problem to be solved by the invention) The present invention was made in view of the conventional circumstances as described above, and its purpose is to attach the cover body by screwing it directly onto the inner peripheral surface of the opening. The aim is to reduce the size of the main body and at the same time prevent the bottom plate from rotating when the cover main body is screwed on.

(Means for Achieving the Object) In order to achieve the above object, the jetting device of the present invention has the cover body disposed at the bottom of the opening of the mounting body and passed through the cylindrical part of the rotating nozzle. An annular holding plate having a through hole is attached to the mounting body by screwing into the female screw provided on the inner peripheral surface of the opening of the mounting body to cover the opening, and the rear end is attached to the holding plate. It is characterized by being formed from a cylindrical cover that comes into contact with the front surface and restricts the forward movement of the presser plate.

(Function) According to the above means, when the cover is screwed onto the inner circumferential surface of the opening, the rear end of the cover locks the presser plate, and the cover body is installed into the opening. In addition, at this time, the peripheral edge of the presser plate is evenly pressed around the entire circumference by the rear end of the cover, so that the seal and the presser plate and the seal and the spherical part of the nozzle are in complete contact with each other.
Not only does it prevent water from leaking, but even when the cover is rotated to screw onto the mounting body, the holding plate does not rotate, and there is a risk that the gasket attached to the back side of the holding plate may be twisted or torn. Nor.

(Example) Hereinafter, an example of implementation of the present invention will be described based on the drawings.

In the figure, a denotes a tank wall of a bathtub A, and 1 denotes a mounting port opened in the tank wall a, into which a mounting body 2 is mounted.

The mounting body 2 is formed into a roughly bottomed cylindrical shape with one side open, and has a male thread 11 on the outer peripheral surface of the open side.
It consists of a main body part 2a having a female thread 7 on its inner circumferential surface and a locking nut 2b screwed onto the male thread 11, and a locking nut 2b that is screwed onto the male thread 11 on the outer circumferential surface of the main body part 2a at a midway point in the axial direction. A flange 13 is provided.

This mounting body 2 is attached to the tank wall a from the outside of the bathtub.
The tank wall a is held between the locking nut 2b screwed onto the male screw 11 from inside the bathtub and the flange 13 of the main body 2a, and the opening side is made to protrude to the inner surface side of the tank wall a. It is attached and fixed to a wall a, and a cover main body 8 consisting of a presser plate 5 and a cover 8a is mounted inside the opening.

The mounting body 2 also has a hot water inflow chamber 1 at the rear of the interior.
4, and a mixing chamber 16 is formed in front thereof via a partition wall 15, a circulation pipe connection port 17 is provided in the hot water inflow chamber 14, and an air pipe connection port 18 is provided in the mixing chamber 16.

A hole 19 is made in the partition wall 15, and this hole 1
An injection nozzle 20 is screwed onto 9.

The injection nozzle 20 is formed into a substantially conical shape with a small diameter tip and projects into the mixing chamber 16 .

A rotary nozzle 3 having a differential user part 21 is provided in the mounting body 2 in front of the injection nozzle 20, and the tip of the injection nozzle 20 is slightly inserted into the differential user part 21 of the rotary nozzle 3.

The rotating nozzle 3 has a cylindrical part 3a in the front half and a spherical part 3b in the rear part, and a through hole 22 passing through these in the front-rear direction expands rearward in the spherical part 3b to form a differential user part 21. The spherical part 3b is rotatably supported by the rotary nozzle receiver 9 and packing 6 fitted on the inner surface of the mounting body 2 in front of the mixing chamber 16, and the cylindrical part 3a is attached to the opening of the mounting body 2. It passes through the presser plate 5 disposed at the bottom and faces the inside of the bathtub A from a position slightly inward from the opening.

The rotating nozzle receiver 9 is made of synthetic resin such as polyacetal, and has a ring shape with an inner circumferential surface formed into a tapered surface that slopes diagonally inward with the rear half facing rearward, and is connected to one location of the tapered surface 23. , one location of the horizontal front half is in line contact with the spherical part 3b of the rotating nozzle 3 to support the spherical part 3b.

Incidentally, the rear end surface of the rotary nozzle receiver 9 abuts against a step 24 provided in the mounting body 2, and is prevented from moving rearward.

The gasket 6 is an annular body made of rubber and is interposed in front of the rotary nozzle receiver 9 between the back surface of the holding plate 5 and the front surface of the spherical portion 3b of the rotary nozzle 3 by tightly attaching its inner peripheral surface to the spherical portion 3b. do.

Further, the packing 6 has an annular stepped portion 25 formed on the front side by cutting out the surface in an annular shape along the inner circumferential surface.

The holding plate 5 is formed into an annular shape by drilling a through hole 4 having a diameter slightly smaller than the inner diameter of the packing 6 in the center of a circular plate having a diameter approximately equal to that of the opening of the mounting body 2. Tsuba edge 2 that protrudes to the back side on the edge
6 are bent and formed into one piece.

The presser plate 5 has its back surface in contact with the bottom wall of the opening of the mounting body 2 and the front surface of the packing 6, and the flange edge 2
The back side of the gasket 6 is engaged with the annular stepped portion 25 of the gasket 6, disposed at the bottom of the opening, and clamped and fixed between the cover 8a and the bottom wall of the opening.

Then, the cylindrical part 3a of the rotary nozzle 3 is inserted into the through hole 4.
penetrate.

The cover 8a is formed into a cylindrical shape whose outer diameter is approximately the same shape as the opening of the mounting body 2, and has a flange 27 on the front opening edge and a female screw 7 on the inner peripheral surface of the opening of the mounting body 2 on the outer peripheral surface. A male screw 12 is provided to be screwed into each.

This cover 8a is screwed onto the opening of the mounting body 2, and the flange 27 penetrates the tub wall a of the bathtub and projects into the bathtub from the front end of the main body 2a of the mounting body 2 and from the inside of the bathtub. The screwed locking nut 2b is covered and the rear end comes into contact with the front surface of the presser plate 5, restricting the forward movement of the presser plate 5, and locking the gasket 6, the rotary nozzle 3, and the rotary nozzle receiver 9. Prevents falling forward and wobbling.

Next, to explain the operation of the jetting device B, hot water flowing into the hot water inflow chamber 14 is jetted from the jetting nozzle 20 into the differential user part 21 of the rotary nozzle 3, and the negative pressure generated at this time generates a strong force. Air is drawn into the mixing chamber 16 by the suction action and mixed into the water injected from the injection nozzle 20 in the form of air bubbles.

Thus, the hot water mixed with a large amount of air bubbles is jetted into the bathtub A from the rotating nozzle 3 as a jet stream.

The jetting direction of this jet stream can be freely adjusted by swinging and rotating the rotary nozzle 3.

Note that the hot water flowing into the hot water inflow chamber 14 is
The circulation pipe 28 is supplied through a circulation pipe 28 whose one end is connected to the circulation pipe connection port 17 of the circulation pipe 28.
The other end is a suction device C provided on the tank wall a of the bathtub.
is connected to via pump D.

The suction device C has an outwardly projecting flange 2 at one end.
9, and a cylindrical main body fitting 30 with a circulation pipe 28 connected to the other end, and a flanged screw 31 screwed into the inner periphery of this main body fitting 30, and a suction device installed at the bottom of the bathtub A. The flange 29 of the main body fitting 30 and the flange 33 of the flange screw 31 are attached and fixed to the mouth 32 with the tank wall a sandwiched therebetween.

On the other hand, the air sucked into the mixing chamber 16 is supplied via an air pipe 34 that connects one end to the air pipe connection port 18 of the mixing chamber 16, and this air pipe 34 is installed on the upper rim b of the bathtub A. connected to an air conditioning system (not shown).

(Effects of the Invention) Since the ejection device for a bubble bathtub of the present invention is constructed as described above, it has the following effects.

The cover body can be installed within the opening of the mounting body without using separate mounting means such as screws, which allows the mounting body to be made smaller, and the device can be easily assembled, and there is no risk of damaging the nozzle during assembly. do not have. At the same time, it is possible to reliably bring the presser plate and the gasket into close contact with each other, prevent the gasket from being damaged when attaching the cover body, and prevent the risk of rattling of the rotating nozzle when air bubbles are ejected.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an ejection device for a bubble bath showing an embodiment of the present invention, Fig. 2 is a front view, Fig. 3 is an exploded perspective view, and Fig. 4 is a system diagram showing an example of a bubble bath. FIG. 5 is a half sectional view of a suction device, and FIG. 6 is a sectional view showing an example of a conventional ejection device for a bubble bath. A... Bathtub, a... Tank wall, 1... Installation port, 2...
...Mounting body, 3... Rotating nozzle, 3a... Cylindrical part, 3b... Spherical part, 4... Through hole, 5... Holding plate, 6... Packing, 7... Female screw, 8... Cover Main body, 8a...cover.

Claims (1)

[Scope of utility model registration request] A mounting body that is attached and fixed to a mounting opening provided in a bathtub wall of a bathtub with the tub wall in between, and a cylindrical part at the front and a spherical part at the rear, and an opening from which the spherical part opens toward the bathtub side of the mounting body. a rotary nozzle that is attached to the body so as to be swingable and that makes the cylindrical part face the inside of the bathtub from the opening and spouts water mixed with air into the bathtub; and a cover body that is attached to the opening of the mounting body. and a gasket which is formed in an annular shape and is interposed between the cover body and the front surface of the spherical part of the rotating nozzle and tightly adheres to both, and the cover body is attached to the bottom of the opening of the mounting body. It is attached to the mounting body by screwing into an annular holding plate having a through hole that allows the cylindrical part of the rotating nozzle to pass through, and a female screw provided on the inner peripheral surface of the opening of the mounting body. A blowout device for a bubble bathtub, characterized in that the cover is formed of a cylindrical cover which covers the opening and whose rear end abuts the front surface of the presser plate to restrict forward movement of the presser plate.