JPH0657233B2 - Nozzle of bubble generator for bubble bath - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a nozzle of a bubble generator for a bubble bath.

(Prior Art) In recent years, a bubble bath provided with a bubble generator for generating a large number of bubbles in the bath has been attracting attention because it has a great effect on promoting metabolism, enhancing massage effect, and recovering from fatigue. In this type of bubble bath, generally, hot water in the bathtub is pumped up by a pump, and the pumped hot water is pumped to a nozzle arranged in the bathtub, and when the pumped hot water is ejected from the nozzle into the bathtub, an air introduction pipe. Air is sucked from the air, and the air is mixed into the warm water to form a large number of bubbles, which are ejected into the bathtub together with the warm water.

(Problems to be Solved by the Invention) Generally, this type of bubble generating device cannot be used for other purposes because a special bubble generating nozzle is fixed to the hose. On the other hand, since a hot water shower is used in the bathroom, there is a device that pumps hot water in the bathtub and ejects it from the shower nozzle, but there is no device that can be used as both a bubble generator and a shower. It was An object of the present invention is to provide a nozzle for a bubble generating device, which can be used for multiple purposes by preparing an attachment having a function other than the bubble generating function by making the nozzle of the bubble generating device removable with one touch. .

Configuration of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, there is provided a chamber having one end communicating with the main flow path connected to the discharge pipe of the bubble generating device, and the same chamber. In the nozzle body with one end of the air introduction path opened, and an engaging recess formed on the outer peripheral surface,
A nozzle body that is loosely inserted into the chamber in a sealed state via a seal ring, and a housing hole that is transparently provided at a position corresponding to the engaging recess of the nozzle body, and a part of the receiving hole engages with the engaging recess. The locking member accommodated in the fitted state and the nozzle body are movably attached to the nozzle body at a position that covers the accommodation hole and a position that opens the nozzle body, and are always disposed at a position that covers the accommodation hole by a biasing means. And a cover member that has been formed.

(Operation) In the nozzle of the present invention having the above configuration, the nozzle body loosely inserted in the nozzle body is fixed at a predetermined position of the nozzle body via the locking member. Then, when the cover member arranged to cover the accommodation hole in which the locking member is accommodated is moved to the position to open the accommodation hole, the nozzle body is easily separated from the nozzle body in that state. Therefore, it is used for multiple purposes by preparing attachments having different functions and exchanging them appropriately.

Embodiment An embodiment embodying the present invention will be described below with reference to the drawings. As shown in FIG. 2, the bubble generator 1 includes a drive unit main body 2 having a pump (not shown) built therein, an intake hose 4 having a strainer 3 connected to the tip thereof, and a nozzle 5 at the tip thereof.
Is connected to the discharge hose 6 as a discharge pipe, the drive unit main body 2 is fixed to the wall surface of the bathroom, and the strainer 3 and the nozzle 5 are accommodated in the bathtub 7 to be used. There is.

As shown in FIG. 1, the nozzle main body 5a is formed in a bottomed cylindrical shape, and has a main flow path 8 near the rear end that communicates with the chamber 5b and extends in a state orthogonal to the axis of the nozzle main body. A connecting portion 10 having an air introducing passage 9 formed therein is formed so as to project. The nozzle 5 is connected to the tip of the discharge hose 6 at the connecting portion 10. Nozzle body 5a
The nozzle body 11 is loosely inserted into the chamber 5b formed in the above state while the opening of the chamber 5b is closed and the sealed state is maintained by the seal ring 12. As shown in FIG. 8, a V-ring is used as the seal ring 12. An annular engagement recess 11 a is formed near the front side of the outer periphery of the nozzle body 11. On the other hand, in the nozzle body 5a, the outer peripheral portion on the front side is formed with a small diameter to form the step portion 13, and the step portion 13 is formed.
At a position corresponding to the engaging recess 11a.
A plurality of accommodating holes 14 having a reduced diameter toward the a side are formed. A locking ball 1 as a locking member is provided in each accommodation hole 14.
5, a part of which is accommodated in the engaging recess 11a. Then, the step portion 13 of the nozzle body 5a
The locking ring 16 as a cover member is provided at a position corresponding to
Are mounted so as to be movable and arranged at a position where the housing hole 14 is covered and a position where the housing hole 14 is opened. The locking ring 16 is biased forward by a spring 17 serving as a biasing means and is locked by a collar portion 11b formed at the front end of the nozzle body 11, whereby the locking ball 15 is engaged with the engaging recess 11a. The nozzle body 11 is held at a position that engages with the nozzle body 11 to prevent the nozzle body 11 from slipping out. Further, a stop ring 18 is fitted and fixed to the front end of the outer peripheral portion of the nozzle body 5a to prevent the locking ring 16 from being completely separated from the nozzle body 5a when the nozzle body 11 is removed. There is.

A discharge port 11c is formed in the nozzle body 11 near the front side of its axial center, a mixing chamber 19 having a diameter larger than that of the discharge port 11c is formed behind it, and an injection nozzle 20 is provided behind the mixing chamber 19.
Are formed. The jet nozzle 20 has a jet outlet 20a having a diameter smaller than that of the jet port 11c formed coaxially with the jet port 11c on the outlet side, and the jet port 20 is located behind the jet port 20a.
A frustoconical chamber 20b having a reduced diameter toward the a side is formed, and a plurality of (4) injection ports 20c are formed behind the chamber 20b and extend obliquely forward from the axis. . Further, the mixing chamber 19 is provided on the outer peripheral portion of the nozzle body 11.
A plurality of communication holes 21 that communicate with each other are formed. An outer peripheral surface of the nozzle body 11 and an inner surface of the nozzle body 5a form an annular chamber 22 at a position corresponding to the communication hole 21, and the air introduction path 9 is opened in a state of communicating with the same chamber 22. .

A thick portion 23 is formed at the rear end of the nozzle body 5a, and a housing recess 24 is formed on the inner surface of the thick portion 23 coaxially with the nozzle body 11. A through hole 25, which communicates with the outside and has a female screw formed on the peripheral surface, is formed on the bottom surface of the accommodation recess 24. And the injection nozzle 20
A valve 26 for adjusting the inflow amount of hot water into the accommodation recess 24 is accommodated in the accommodation recess 24 in a state in which the male screw portion 26a is screwed into the female screw portion of the through hole 25. A handle 27 is fitted and fixed to the protruding end of the valve 26 so as to be integrally rotatable. An O-ring 28 is interposed between the valve 26 and the housing recess 24. A suction cup 29 for fixing the nozzle 5 in the bath is fixed to the connecting portion 10,
Further, a known air intake amount adjusting section 30 is provided in the middle of the discharge hose 6 for adjusting the amount of intake air to the air introduction passage 9.

The nozzle 5 is provided with attachments 31 and 32 for showering and hose connection in addition to the nozzle body 11 for generating bubbles. As shown in FIG. 6, the attachment 31 for the shower has a mounting portion 31a at the end of a cylindrical mounting portion 31a.
Sprinkler part 31c having a larger diameter and a large number of through holes 31b
Are integrally formed. Similar to the nozzle body 11 for bubble generation, the engaging recess 3 is provided near the outer peripheral tip of the mounting portion 31a.
1d is formed. Also, the attachment 32 for connecting the hose is the attachment 31 as shown in FIG.
Cylindrical mounting part 32a with engaging recess 32b similar to
A flange 32c having a diameter larger than that of the mounting portion 32a and a connecting portion 32d having a diameter smaller than that of the mounting portion 32a are integrally formed at the front end of the mounting portion 32a.

Next, the operation of the device configured as described above will be described. As shown in FIG. 2, the air suction amount adjusting unit 30 of the discharge hose 6
The nozzle 5 is sucked and fixed in the bathtub 7 using the suction cup 29 in a state in which the nozzle 5 is arranged above the water surface. When the pump is driven in this state, the hot water in the bath 7 is sucked into the pump via the strainer 3 and the suction hose 4, and is pumped to the nozzle 5 via the discharge hose 6. Chamber 5b through main flow path 8
The warm water that has been pumped into the inside is the injection hole 20c of the injection nozzle 20,
It is vigorously ejected from the ejection port 20a toward the ejection port 11c through the chamber 20b. The hot water is vigorously ejected from the ejection nozzle 20 to lower the pressure in the mixing chamber 19,
The air in the air introduction passage 9 is sucked into the mixing chamber 19, and is discharged from the discharge port 11c into the bath along with the hot water jetted from the jet nozzle 20. The air sucked into the mixing chamber 19 is divided into small bubbles by the action of hot water ejected from the ejection port 20a, and becomes a large number of bubbles. The size of the bubbles generated at this time changes depending on the pressure of the hot water jetted from the jet port 20a of the jet nozzle 20, and the pressure of the hot water changes according to the inflow amount of the hot water jetted from the jet hole 20c. .

The amount of hot water flowing into the injection hole 20c is changed by changing the amount of protrusion of the valve 26 into the chamber 5b if the output of the pump is constant. In the nozzle of this embodiment, the handle 27 is rotated from the state shown in FIG.
The amount of inflow is reduced by projecting into b and reducing the distance between the rear end of the injection nozzle 20 and the valve 26. That is, the amount of hot water flowing into the injection nozzle 20 can be easily adjusted by rotating the handle 27.
It is possible to adjust the state of bubbles ejected from the discharge port 11c. Further, in the device of this embodiment, the injection hole 20c formed in the injection nozzle 20 is formed so as to be eccentric to the axis of the ejection port 20a and extend obliquely forward, so that the injection port 20c The hot water injected advances as a vortex, and the air sucked from the air introduction passage 9 into the mixing chamber 19 tends to be small bubbles.

Next, an exchange operation of the nozzle body 11 and the other attachments 31, 32 will be described. When removing the nozzle body 11 mounted on the nozzle body 5a, first, the locking ring 16 is moved rearward against the urging force of the spring 17 and held in that state. As a result, the accommodating hole 14 that has been covered by the engaging ring 16 is opened as shown in FIG. 9, and the engaging ball 15 accommodated in the accommodating hole 14 is removed from the engaging recess 11a of the nozzle body 11. You can leave. When a force is applied to the nozzle body 11 to the left in FIG. 9 in this state, the nozzle body 11 engages with the engaging recess 15a and the engaging ball 15
Is extruded to the accommodation hole 14 side and easily separated from the nozzle body 5a. At this time, the locking ball 15 is engaged with the tip of the locking ring 16 to prevent the locking ball 15 from being completely separated from the accommodation hole 14. In addition, since the diameter of the accommodation hole 14 at the position corresponding to the inner surface of the nozzle body 5a is smaller than the diameter of the locking ball 15, the locking ball 15 does not drop into the nozzle body 5a.

Next, a desired attachment, for example, a shower attachment 31 is inserted into the chamber 5b of the nozzle body 5a. When the mounting portion 31a is completely inserted into the chamber 5b, the engaging recess 31d corresponds to the accommodation hole 14. In this state, the locking ring 16 is released so that the locking ring 16 is attached with the spring 17. It moves forward due to the force, pushes the locking ball 15 into the accommodation hole 14, and holds the accommodation hole 14 at a position to completely cover the accommodation hole 14. As a result, the locking ball 15 is engaged with the engaging recess 31d.
Even if a force is applied to the attachment 31 in the direction for separating it from the chamber 5b, the engagement ball 15 keeps the separation 31 completely prevented from separating. Therefore, when the pump is driven in this state, the bubble generating device 1 can be used as a shower. When the attachment 32 for connecting a hose is used as the attachment, it can be used as a pump when the water in the bathtub 7 is used in the washing machine in the bubble generating device 1 or as water for extinguishing in case of fire. You can In this case, unlike the nozzle body 11 for generating bubbles, there is no flow resistance such as the injection nozzle 20, so that the nozzle 5 discharges without restricting the flow rate. Attachment part 31 of attachment 31, 32
Since the a and 32a are mounted so as to cover the opening of the air introduction passage 9 of the nozzle body 5a, the attachments 31 and 32a are attached.
At the time of use, the suction of air from the air introduction passage 9 to the nozzle 5 is reliably prevented, and the action of the seal ring 12 prevents the water in the chamber 5b from entering the air introduction passage 9 side.

It should be noted that the present invention is not limited to the above-described embodiment, and for example, a cover member that is moved to a position that covers the housing hole 14 and a position that opens the housing hole 14 is replaced with a configuration that slides in the front-back direction of the nozzle body 5a. And the engaging concave portions 11a and 3 formed on the outer peripheral portions of the nozzle body 11 and the attachments 31 and 32.
Instead of the annular recesses 1d and 32b, recesses are formed only at positions corresponding to the accommodation holes 14, or the seal ring 12 is formed.
As an alternative, an O ring may be used instead of the V ring.
Further, the valve 26 may be omitted, or the main flow path 8 may be configured to extend in a direction other than orthogonal to the nozzle body 5a.

EFFECTS OF THE INVENTION As described in detail above, according to the present invention, since the nozzle body for regulating the state of the water ejected from the nozzle can be attached and detached with one touch, the attachment for other purposes besides the nozzle body for generating bubbles. By preparing the above, the excellent effect that the bubble generating device can be easily used for other purposes such as a shower is exerted.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a nozzle showing an embodiment embodying the present invention, FIG. 2 is a schematic perspective view showing a state in which an air bubble generator is attached to a bathroom, and FIG. 3 is A- in FIG. A line sectional view,
4 is a sectional view taken along line BB of FIG. 1, and FIG. 5 is C of FIG.
-C line sectional view, FIG. 6 is a sectional view of the shower attachment, FIG. 7 is a sectional view of the hose connection attachment,
FIG. 8 is a partially cutaway perspective view of the seal ring, and FIG. 9 is a cross-sectional view showing the action when the nozzle body is removed. Bubble generator 1, nozzle 5, nozzle body 5a, chamber 5b,
Discharge hose 6 as a discharge pipe, main flow path 8, air introduction path 9, nozzle body 11, engaging recess 11a, seal ring 1
2, the housing hole 14, the locking ball 15 as a locking member, the locking ring 16 as a cover member, the injection nozzle 20, the attachments 31, 32.

Claims (2)

[Claims] 1. A discharge pipe (6) of a bubble generator (1) at one end.
A nozzle body (5a) having a chamber (5b) communicating with the main flow channel (8) connected to the chamber, and one end of the air introduction channel (9) opening in the chamber (5b), and engaging with the outer peripheral surface A recess (11a) is formed and a nozzle body (11) loosely inserted in the chamber (5b) via a seal ring (12) in a sealed state, and the engagement of the nozzle body (5a). A locking member (15) housed in a housing hole (14) provided at a position corresponding to the recess (11a) in a state of being partially engaged with the engaging recess (11a), and a nozzle body ( 5a) is movably attached to a position covering the accommodation hole (14) and an opening position,
A nozzle for a bubble generating apparatus for a bubble bath, comprising: a cover member (16) which is always disposed at a position where the biasing means (17) covers the accommodation hole (14). 2. The cover member is a locking ring (16) slidably mounted on the outer side of the front of the nozzle body (5a), the tip of which is a collar formed at the front end of the nozzle body (11). By abutting against the portion (11b), the accommodation hole (1
The nozzle of the bubble generator for bubble tubs according to claim 1, which is held at a predetermined position to cover 4).