JPH03218760A - Bubble generating bath device - Google Patents

Abstract

PURPOSE:To facilitate the construction, and also, to prevent the beautiful view of a bathtub from being spoiled by forming integrally a member for sucking, mixing and blowing out air, and a member for allowing hot water in the bathtub to flow out to a return pipe, in plural bubble generating nozzles. CONSTITUTION:In accordance with a bubble generating nozzle 7a, a fitting port 31 is formed in advance on a wall of a bathtub 1, and an inner cylinder member 8 is inserted into the fitting port 31 from the outside of the bathtub 1. Subsequently, a tightening cylinder member 19 is inserted into the fitting port 31 from the inside of the bathtub 1, screwed to an outer cylinder member 12 and tightened. Also, a flange part 32 of the tightening cylinder member 19 and an end part of the outer cylinder member 12 insert and hold the wall of the bathtub 1 around the fitting port 31, and are attached. A bubble generating nozzle 7 seals up a return hot water flow path of the bubble generating nozzle 7, that is, a suitable part extending from a water communicating hole 21 to a return pipe connecting part 35. In such a way, after plural bubble generating nozzles 7a, 7b are attached to the bathtub 1, a going pipe 6a of a circulating device 2 is connected to the driving flow nozzle part 9, and an air suction pipe 36 is connected. Also, to a water chamber 15 of the bubble generating nozzle 7a, a return pipe 6a of the circulating device 2 is connected through a return pipe connecting part 35.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a bubble-generating bath device that can generate bubbles while circulating hot water.

(Prior art) For example, as shown in Fig. 4, the water heater C is configured with a bathtub d and a water heater C provided with a hot water bomb a and a heat exchanger b, and the heat exchanger b is connected from the discharge side of the hot water bomb a. Hot water inflow member e of bathtub d
, e', and the hot water outflow member g of the bathtub d.
Recently, in a forced circulation bath device in which a return pipe h returning from the water supply bomb a to the suction side of the hot water supply bomb a is configured so that the hot water in the bathtub d can be forcibly circulated by the hot water supply bomb a, There is a system in which a bubble generating mechanism 1 using an ejector or the like is provided in the hot water inflow members e and e' so that hot water mixed with air bubbles can be spouted from the mechanism into the bathtub d.

An example of such a bubble generating mechanism 1 is shown in FIG. 5. This device is an outer cylindrical member J to which the outgoing pipe f is connected.
Inside, a mixed flow nozzle main body 1 having a spherical support part k formed on the rear side is supported so as to be changeable in direction by front and rear spherical support annular members m, and the mixed flow nozzle main body 1 is provided with a jet of the outgoing pipe f. A driving flow nozzle part n is formed on the side, an air mixing part 0 for mixing air as a secondary flow is formed downstream of the driving flow nozzle part n, and an air suction port p for flowing air into this air mixing part 0 is configured. An air chamber q is provided in the outer cylinder member J corresponding to the suction port p.
1, and an air suction pipe r is connected to this air chamber q. This mechanism i includes a tightening cylinder member S on the front side of an outer cylinder member j.
are screwed together, and the flange portion t of the tightening cylinder member S and the outer cylinder member J
The wall around the installation opening U of the bathtub d is sandwiched between the front end portions of the bathtub d and the wall is tightened and fixed.

(Problems to be Solved by the Invention) The conventional bubble generating mechanism l is thus configured by integrally forming only the spouting member for hot water mixed with bubbles, that is, the hot water inflow member e.
Since the hot water outflow member g that connects the return pipe h to the circulation device C is constructed separately, the bathtub d has attachment ports u, corresponding to the hot water inflow member e and the hot water outflow member g, respectively. u
' needs to be formed. For example, Fig. 4 (b), (c)
), when using a plurality of hot water inflow members e, e',..., these hot water inflow members e, e',...
If one or two common hot water outflow members g are provided, the same number of hot water outflow members g as the hot water inflow members e, e', .
There is no need to provide a hot water outlet, and the number of attachment ports U' can be reduced, but if there are fewer hot water outlet members g, the amount of hot water flowing out from them will increase accordingly, which may cause discomfort due to the suction flow. Yes, and in any case one or two hot water outflow membersg. Mounting ports u, u for g'
' is essential, so there is a problem that the construction becomes troublesome and may spoil the aesthetic appearance of the bathtub d.

The present invention aims to solve this problem.

(Means for Solving the Problems) To explain the configuration of the present invention with reference to drawings corresponding to embodiments, the bubble generating bath device of the present invention circulates hot water between a bathtub l and the bathtub 1. A plurality of attachment ports 31, . A driving flow nozzle section 9 connected to the outflow pipe 6a, and a mixed flow nozzle section 10 corresponding to the inside of the bathtub 1,...
At least one of these bubble generating nozzles 7 7a has a driving flow nozzle section 9 on one side of the inner cylinder member 8. A mixed flow nozzle part 10 is formed on the other side, and an outer cylinder member l2 is attached to form a space 11 outside the inner cylinder member 8, and the outer cylinder member 12 and the inner cylinder member 8 A protrusion 13 is formed on at least one side of the space 1, and the protrusion 13 protrudes toward the other side.
1 is divided into an air chamber 14 corresponding to one side of the inner cylindrical member 8 and a water chamber 15 corresponding to the other side, and the inner cylindrical member 8 is provided with a Air mixing section 1
A tightening cylindrical member 19 is provided on the other side of the outer cylindrical member 12 and forms a water flow gap 18 between the inner cylindrical member 8 and the inner cylindrical member 8.
A common return pipe 6b connected to the circulation device 2 is connected to the water chamber 11 of the bubble generating nozzle 7a.

In the above configuration, the circulation device 2 may be a simple pump device or a hot water supply device including a heat exchanger 4 capable of heating circulating water. In addition, the aforementioned tightening cylinder member l
A cap 22 having a water communication hole 2l can be attached to the cap 9. In this case, a tightening tool engagement recess 26 which also serves as water communication is formed in the cap 22, and the cap 22 is formed with a tightening tool engaging recess 26 which also serves as water communication. The hot water in the bathtub 1 can be drained through 26. Further, an appropriate filter 23 can be interposed between the cap 22 and the tightening cylinder member 19.

Further, the mixed flow nozzle portion 1o has a spherical support portion 27 formed on the rear side thereof, and a spherical support annular member 28.2 on the front and rear sides.
9 can be configured to be supported on the other side of the inner cylinder member 8 so as to be able to change direction. In this case, an O-ring 30 is interposed between the spherical support annular member 29 on the rear side and the end of the inner cylinder member 8. can be equipped.

Further, the driving flow nozzle section 9 can be configured to be eccentric to one side of the inner cylinder member 8.

(Function) The hot water supplied from the circulation device 2 flows from the outgoing pipe 6a into the driving flow nozzle portion 9 of each of the plurality of bubble generating nozzles 7a, 7b, and is mixed with air through the air suction pipe 36 and the air chamber by the ejector action. The mixed flow flows out from the nozzle section 10 into the bathtub 1. On the other hand, hot water in the bathtub 1 passes through the water flow gap 18 between the tightening cylinder member 19 of the bubble generating nozzle 7a and the inner cylinder member 8, reaches the water chamber 15, and from there passes through the return pipe 6b to the circulation device 2. The hot water returned to the suction side of the hot water bomb 5 and subjected to circulation 6, and the hot water pressurized by the hot water pump 5, is heated as it is or is appropriately heated in the heat exchanger 4, and then passes through the outgoing pipe 6a again and is returned as described above. Then, a plurality of bubble generating nozzles 7a and 7b flow into the bathtub l.

The present invention thus provides a plurality of bubble generating nozzles 7a, 7b.
Since at least one of the bubble generating nozzles 7a is integrally configured with the function of causing hot water in the bathtub 1 to flow out to the return pipe 6b, the bathtub 1 includes the plurality of bubble generating nozzles 7 described above.
It is only necessary to form the same number of mounting holes 31, . . . as a, 7b. Therefore, construction is easy and the beauty of the bathtub l is not impaired.

(Example) Next, an example of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, numeral 1 is a bathtub, and 2 is a circulation device configured to circulate hot water between the bathtub 1 and the bathtub 1. This circulation device 2
A pump 5 is provided on the upstream side of a path passing through a heat exchanger 4 heated by a heat source 3 such as a gas burner, and the hot water is passed from a return pipe 6b on the upstream side through the heat exchanger 4 to an outgoing pipe 6a on the downstream side.
It is structured so that it can be distributed to Of course, it can also be configured as a simple pump device that does not heat hot water. Reference numeral 7a designates at least one bubble generating nozzle among the plurality of bubble generating nozzles 7 attached to the bathtub 1, and this bubble generating nozzle 7a constitutes a driving flow nozzle part 9 on one side of the inner cylinder member 8, and on the other side. The mixed flow nozzle part 10 is configured at the same time, and an outer cylinder member l2 is attached to form a space l1 outside the inner cylinder member 8, and on at least one side of the outer cylinder member l2 and the inner cylinder member 8, Projection 13 projecting toward the other side
The space 1l is divided by the protrusion l3 into an air chamber l4 corresponding to one side of the inner cylinder member 8 and a water chamber l5 corresponding to the other side. forms a suction port 17 that communicates the air mixing section 16 on the downstream side of the driving flow nozzle section 9 with the air chamber 14, and
A tightening cylinder member 19 that forms a water flow gap 18 with the inner cylinder member 8 is screwed onto the other side of the outer cylinder member 12 .

In the above structure, the protrusion 13 is formed on both the outer cylinder member 12 and the inner cylinder member 8, and an O-ring 20 is interposed in the abutting portions thereof. In addition, the protrusion l3 may be formed only on either the outer cylinder member 12 or the inner cylinder member 8. Further, a cap 22 having a water communication hole 2l is attached to the tightening cylinder member 19.
2 and the flange portion 32 of the tightening cylinder member 19.
3 is interposed. The cap 22 can be attached by rotating a protrusion 24 provided inside the circumferential edge of the cap 22 by engaging an inclined protrusion 25 formed on the circumferential edge of the tightening cylinder member 19 .

On the other hand, the tightening cylindrical member 19 has a recess 26 for engaging a tightening tool that also serves as water communication, so that the hot water in the bathtub 1 is made to flow together with the water communication hole 21. Next, in the mixed flow nozzle section 10, a spherical support section 27 formed on the rear side thereof is supported on the other side of the inner cylinder member 8 by front and rear spherical support annular members 28, 29, so that the direction can be changed. Moreover, an O-ring 30 is interposed between the rear spherical support annular member 29 and the end of the inner cylinder member 8, and this O-ring 3o is used when the supporting force of the spherical support annular member 28, 29 becomes weak. However, due to its elastic force, a predetermined sealing effect is maintained. Further, two of the driving flow nozzle sections 9 are arranged in parallel, and each is eccentric with respect to the central axis. In this structure, the hot water spouted from each nozzle is close to the wall surface of the air mixing section 16. Since the air flows through the air, the air suction efficiency is good. Further, the other bubble generating nozzle 7b may be the bubble generating nozzle as in the conventional example described above, or may be constructed by sealing a suitable position of the return hot water flow path of the bubble generating nozzle 7a.

In the above configuration, first, the same number of attachment ports 31 as the number of bubble generating nozzles 7 to be attached are formed in the wall of the bathtub l. The diameter of the mounting port 3l is adjusted depending on the bubble generating nozzle 7 to be installed there. Of course, the installation of the bubble generating nozzle 7 is facilitated if the mounting opening 31 thereof is fixed. Therefore, in order to accommodate the bubble generating nozzle 7a, a mounting opening 31 slightly larger than the outer diameter of the cylindrical portion of the tightening cylindrical member 19 is formed in advance on the wall of the bathtub 1, and the inner cylindrical member 8 is attached to the bathtub 1. Insert into the mounting port 31 from the outside. In this state, the tightening cylindrical member l9 is inserted from the inside of the bathtub 1 into the attachment opening 3l, and is screwed onto the outer cylindrical member l2 and tightened. In addition, at this time, the tightening cylinder member l
A washer 33 is installed between the flange portion 32 of 9 and the wall of the bathtub l.
or packing 34, etc., as appropriate. In this way, the flange portion 32 of the tightening cylinder member l9 and the end of the outer cylinder member 12 are
It supports the wall of the bathtub 1 around the attachment opening 3l and is in the attached state.

In addition, other bubble generating nozzles 7b are attached using corresponding methods. As described above, if the other bubble generating nozzle 7 is configured by sealing the return hot water flow path of the bubble generating nozzle 7, that is, the appropriate place from the water communication hole 21 to the return pipe connecting portion 35, it is possible to And construction can be standardized,
Cost can be reduced.

In this way, a plurality of bubble generating nozzles 7a, 7b, -
... are attached to the bathtub l, the inlet pipe 6a of the circulation device 2 is connected in parallel to the driving flow nozzle part 9 of all the bubble generating nozzles 7a, 7b, ..., and the air suction pipe 36 is connected to each of them. and the water chamber 15 of the bubble generating nozzle 7a.
, the return pipe 6b of the circulation device 2 is connected via the return pipe connection 35.
Connect it and use it.

FIG. 3 shows a configuration in which four bubble generating nozzles 7a and 7b are attached to the bathtub l. In the configuration of (a), there is only one bubble generating nozzle 7a connected to the return pipe 6b. Further, in (b), there are two bubble generating nozzles 7a, and these water chambers 15 are connected in parallel to the return pipe 6b.

In addition, in (C), each pair of four bubble generating nozzles 7a and 7b can be operated independently, and each pair is provided with a bubble generating nozzle 7a connected to the return pipe 6b to The chamber l5 is connected to the return pipe 6b of each circulation device 2 via a return pipe connection member 35.

Therefore, the water supply pump 5 of the circulation device 2 causes the outgoing pipe 6a
The hot water that has reached the bubble generating nozzles 7a and 7b is ejected from each mixed flow nozzle section 10 with bubbles. For example, the hot water that reaches the bubble generating nozzle 7a and flows into one side of the inner cylinder member 8 is ejected from the driven flow nozzle part 9 into the air mixing part 16 on the downstream side thereof, and at this time, the hot water in the air chamber l4 is is sucked in through the suction port 17. In this way, the driving flow of hot water and the secondary flow of air gradually mix and flow in the other direction in the inner cylinder member 8, and after being sufficiently mixed, flow into the bathtub l from the mixed flow nozzle part lO. gush. On the other hand, bathtub l
The hot water inside reaches the water chamber l5 through the water flow gap 18 between the tightening cylinder member l9 and the inner cylinder member 8, and from there returns to the suction side of the hot water pump 5 of the circulation device 2 through the return pipe 6b. Subjected to circulation. When the circulation device 2 is a water heater, the hot water pressurized by the hot water supply pump 5 is appropriately heated by the heat exchanger 4, flows into the bathtub l via the outgoing pipe 6a, and is reheated together with the bubble bath. can be done.

(Effects of the Invention) As described above, the present invention includes a member that sucks air into at least one of the plurality of bubble generating nozzles attached to the bathtub, mixes it, and ejects the mixture with air bubbles; Since the component that allows the hot water to flow out into the return pipe is integrally constructed, it is only necessary to form the same number of installation ports in the bathtub as the plurality of bubble generating nozzles mentioned above, which simplifies construction and improves the aesthetic appearance of the bathtub. It has the effect of not causing damage.

[Brief explanation of drawings]

FIG. 1 is an explanatory cross-sectional view showing an embodiment of the overall configuration of the bubble-generating bath device of the present invention, and FIG. 2 is a partial cross-sectional view showing an example of the bubble-generating nozzle of the bubble-generating bath device of the present invention. Figures 3(a), 3(b), and 3(C) are explanatory plan views showing embodiments of the overall configuration of the bubble-generating bath device of the present invention;
FIG. 4(a) is an explanatory cross-sectional view showing the overall configuration of a conventional bubble-generating bath device, and FIGS. 4(b) and (C) are explanatory plan views showing the overall structure of the conventional bubble-generating bath device. FIG. 5 is a partially sectional explanatory view showing an embodiment of a conventional bubble generating nozzle. Code l: bathtub, 2: circulation device, 3: heating source, 4: heat exchanger, 5: hot water pump, 6a: forward pipe, 6b: 1: return pipe, 7 (7a, 7b)...bubble generating nozzle, 8...inner cylinder member, 9...driving flow nozzle section, lO...mixed flow nozzle section, 1l...space, 12
...Outer cylinder member, 13...Protrusion, l4...Air chamber,
15...Water chamber, 16...Air mixing part, 17...Suction port, 18...Gap for flowing water, 19...Tightening cylinder member, 2
0... O ring, 21... Water communication hole, 22... Cap, 23... Fielder, 24... Protrusion, 25...
... Slanted protrusion, 26 ... Recess, 27 ... Spherical support section, 28.29 ... Spherical support annular member, 30 ... 0 ring, 31 ... Mounting port, 32 ... Flange section , 33・
...Washer, 34...Packing, 35...Return pipe connection, 36...Air suction pipe. Figure 5 Figure 2 Figure 3 (a)

Claims (7)

[Claims] (1) Consisting of a bathtub and a circulation device capable of circulating hot water between the bathtub, a plurality of attachment ports are formed in the side wall of the bathtub, and each of the attachment ports is provided with a circulation device configured to circulate hot water between the bathtub and the bathtub. A driving flow nozzle part connected to an incoming pipe from the bathtub, a mixed flow nozzle part corresponding to the interior of the bathtub, and a bubble generation nozzle comprising an air chamber connected to an air suction pipe are installed, and at least of these bubble generation nozzles are installed. One is to configure a driving flow nozzle section on one side of the inner tube member, configure a mixed flow nozzle section on the other side, and attach an outer tube member so as to define a space outside the inner tube member. , a protrusion is formed on at least one side of the outer cylindrical member and the inner cylindrical member, and the ridge protrudes toward the other side, and the ridge defines the space as an air chamber corresponding to one side of the inner cylindrical member. , and a corresponding water chamber on the other side,
The inner cylinder member is formed with a suction port that communicates the air mixing part on the downstream side of the driving flow nozzle part with the air chamber, and the other side of the outer cylinder member is formed with a suction port that communicates with the inner cylinder member. A bubble generating device for a bath, characterized in that a tightening cylindrical member forming a water flow gap therebetween is screwed together, and a common return pipe connected to the circulation device is connected to the water chamber of the bubble generating nozzle. (2) The circulation device according to claim 1 is a bubble generating bath device characterized in that it is a hot water supply device equipped with a heat exchanger capable of heating circulating water. (3) A bubble generating bath characterized in that the tightening cylindrical member according to claim 1 is equipped with a cap having a water communication hole, and also has a concave portion for engaging a tightening tool which also serves for water communication. Device (4) A bubble generating bath device characterized in that a filter is interposed between the cap and the tightening cylindrical member according to claim 1. (5) The mixed flow nozzle section of claim 1 is configured such that the spherical support section formed on the rear side thereof is supported by the spherical support annular members on the front and rear sides so that the direction can be changed to the other side of the inner cylinder member. A bubble-generating bath device featuring (6) A bubble generating bath device characterized in that an O-ring is interposed between the rear spherical support annular member and the end of the inner cylinder member as claimed in claim 5. (7) A bubble-generating bath device characterized in that the driven flow nozzle portion according to claim 1 is configured to be eccentric to one side of the inner cylinder member.