JP2002340415A - Bath adapter for forcible circulation type bath boiler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve agitation performance of bathtub hot water and rapidly equalize bathtub water temperature and to lengthen a cycle in which a filter for filtration is cleaned. SOLUTION: In case a return pipe 10a is arranged to a joint 3, hot water in a bathtub is sucked through a right opening part 9c and a left opening part 9d. After the hot water is heated by a heat exchanger, and after it is injected through a central opening part 9h toward a position right below the bottom of the bathtub, it makes upward convection to agitated hot water in the bathtub. Further, in the case the return pipe 10a is arranged to a joint 2, hot water in the bathtub is sucked through a central opening part 99h, and after it is bilaterally symmetrically and obliquely downward jetted in the bathtub 14 through the right opening part 9c and the left opening part 9d, it makes upward convection to agitate hot water in the bathtub.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus adapter for connecting a bathtub and a forced circulation bathtub outside the bathtub via a feed pipe and a return pipe to circulate bathtub hot water.

[0002]

2. Description of the Related Art There has been known a forced circulation bathtub (hereinafter simply referred to as a bathtub) which is connected to a bathtub through a going pipe and a return pipe to drive a circulation pump to circulate and heat the bathtub water. I have. The bath kettle rotates the circulation pump, sucks bath water from the return pipe, and gushes heated water from the pipe. A bus adapter is provided at the connection between the bathtub and the bathtub, and an outgoing pipe and a return pipe from the bathtub are connected to the bath adapter.
The bus adapter has a pipe connection portion mounted from the outside in a through hole provided in the side wall of the bathtub, and a passage forming portion mounted from the inside, and the pipe connection portion has a passage from a bath kettle. A joint is provided for connecting the tube and a joint for connecting the return tube.

[0003] In order to improve the workability at the time of the pipe connection work, no difference is caused in the stirring performance of the bath tub water even if the outgoing pipe and the return pipe are connected to either side of the two joints. Bus adapters have been proposed. For example,
In the bus adapter proposed in Utility Model No. 252504, as shown in FIG. 9, the two flow paths that follow from the respective joints provided in the path forming part are symmetrically inclined downward at the outlet side to the bathtub P. The opening A and the opening B open to the bathtub P side. In this bus adapter, hot water flows in a diagonally downward direction from either the opening A or the opening B provided symmetrically, irrespective of the joint of the outgoing pipe and the return pipe. So that there is no difference in the stirring performance. For this reason, it is possible to prevent troublesomeness of confirming a joint in piping connection work and erroneous piping.

[0004]

However, in the above-described bath adapter, since the spouting water has a left-right direction, the bath water in the opposite side of the opening for spouting the hot water is not sufficiently stirred. Will be. For example, when the bathtub hot water is sucked from the opening A and heated in the bath kettle and jetted out of the opening B into the bathtub P (dotted arrow in the figure), the bathtub hot water on the opening A side is stirred by the opening. In the case where suction is performed from the opening B and ejected from the opening A (solid arrow in the drawing), the bath tub water in the opening B cannot be sufficiently stirred. For this reason, the temperature distribution on the left and right in the bathtub becomes uneven, and the uniformity of the bathtub water temperature has not been improved yet.

Further, filters X for filtering hair and the like in the bathtub P are provided at positions opposing the opening A and the opening B, respectively, but the water absorbing ability is reduced due to clogging of dust. Therefore, the filter X must be cleaned frequently, which is troublesome. The bath adapter of the forced circulation bath kettle of the present invention solves the above-mentioned problems, and aims to improve the stirring performance of bath tub hot water, make the bath tub hot water temperature uniform, and lengthen the cycle of cleaning the filter for filtration. .

[0006]

A pipe connecting portion having a first connecting port for connecting one of an outgoing pipe and a returning pipe for circulating bath water out of the bath tub, and a second connecting port for connecting the other pipe, and the above-mentioned pipe. A passage forming portion which is connected to the connection portion and internally provided with a first passage and a second passage which are respectively independently communicated with the first connection port and the second connection port and open to the bathtub side; In the attached bath adapter of the forced circulation bath kettle, the first passage is branched in two directions on the side of the bathtub, and both openings of the branched passage open diagonally downward and rightward toward the bottom of the bathtub. The gist of the invention is that the opening of the second passage is opened right below the bottom of the bathtub at the center of both the left and right openings provided in the first passage.

According to a second aspect of the present invention, there is provided a bus adapter for a forced-circulation bath kettle, wherein a first connection port for connecting one of a going pipe and a return pipe for circulating bath water in the bath tub is connected to the other. A pipe connection part having a second connection port, and a first connection port and a second connection port connected to the pipe connection part,
The first one which is connected to the connection port independently and opened to the bathtub side
And a passage forming portion provided with a passage and a second passage. In the bus adapter of the forced circulation bath kettle attached to the bathtub wall, the first passage is branched in two directions on the bathtub side,
The two openings of the branched passage are opened parallel to each other directly below the bottom of the bathtub at predetermined intervals on the left and right, and
The gist of the present invention is that the opening of the passage is opened right below the bottom of the bathtub at the center of both openings provided at predetermined intervals on the left and right of the first passage.

Further, the bus adapter of the forced circulation bath kettle according to claim 3 of the present invention is the above-mentioned claim 1 or claim 2.
The bath adapter of the forced circulation bath kettle according to the above, wherein a cap having a common opening facing all the openings of the first passage and the second passage, and a filter provided with a filtration filter over the entire surface of the opening is provided by the passage forming portion. The gist is that it was attached to the bathtub side.

The bath adapter of the forced circulation bath kettle according to the first aspect of the present invention, wherein the bath adapter sucks bath water from the opening of the first passage or the second passage connected to the return pipe of the bath kettle. Hot water is blown out from the opening of the first passage or the second passage connected to the going pipe. When the first connection port is connected to the return pipe of the bathtub, the bathtub hot water is sucked from the two left and right openings provided in the first passage, heated through the bathtub, and heated from the going pipe to the second pipe. Hot water is circulated to the passage. The hot and cold water guided to the second passage is ejected from the opening of the second passage, which is the center of both the left and right openings provided in the first passage, directly below the bathtub bottom surface, and then convects upward. Stir the bath water. The hot water spouted from the opening of the second passage toward the bottom surface of the bathtub is not spouted to the left or right in the bathtub, but is spouted almost at the center of the bathtub. Alternatively, the stirring performance is improved as compared with a bus adapter that jets only in the left direction. On the contrary, when the second connection port and the return pipe are connected, the bathtub hot water is sucked from the opening of the second passage that opens right below the bottom of the bathtub, and the heated hot water is circulated to the first passage. . The heated hot water is jetted obliquely downward in the left and right directions into the bathtub, and then convects upward to agitate the hottub water. That is, since the hot and cold water is spouted to the left and right sides in the bathtub, the stirring performance is greatly improved as compared with the conventional bus adapter which spouts only in one of the left and right directions. In this way, even when the outgoing pipe and the return pipe are connected to either the first connection port or the second connection port, good stirring performance of bathtub hot and cold water can be obtained.

In the bus adapter of the forced circulation bath kettle according to claim 2 of the present invention, when the second connection port is connected to the return pipe, the hot water heated by the bath kettle is supplied to the first passage. After being sprayed from both openings toward the bottom of the bathtub, it convects upward. Since the spouted water goes directly below the bottom of the bathtub where the temperature is the lowest, the temperature of the bathwater can be made uniform more quickly than in the case of spouting obliquely or horizontally. Conversely, when the first connection port and the return pipe are connected, the hot and cold water sucked from both the left and right openings of the first passage and heated by the bath kettle is opened in the second passage in the same manner as in claim 1. After being sprayed downward from the bottom of the bathtub, it is convected upward to stir the bathtub water satisfactorily.

Further, in the bus adapter of the forced circulation bath kettle according to the third aspect of the present invention, a common large filter facing all openings of the first passage and the second passage is used as a filter for filtering bath water. By using this, it is possible to suppress a decrease in water absorption capacity due to clogging of dust.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of a bus adapter for a forced circulation bath kettle according to the present invention will be described below. << 1st Embodiment >> FIGS. 1-3 are schematic block diagrams of a bus adapter 1 of a forced circulation bath kettle as a first embodiment,
FIG. 4 is a schematic configuration diagram of a forced-circulation bath kettle 11 with hot water supply provided with the bath adapter 1 (hereinafter, simply referred to as a bath kettle 11). Bath kettle 11 is roughly divided into bus adapter 1
A circulating heating circuit 12 that circulates and heats the bathtub hot water via
Hot water supply circuit 13 for supplying hot water to bathtub 14 and general hot water supply path 19
And a controller 15 for controlling the operation of both circuits.

As shown in FIGS. 1 to 3, the bus adapter 1 connects the pipe connecting portion 6 to the through hole 14a provided on the side wall of the bathtub 14 from outside via a packing 8a and connects from the inside via packing 8b. The outer tubes 7 are screwed together and fixed. The guide 9 is mounted inside the connection outer tube 7 to form a passage forming portion 17 having a double tube structure for partitioning the going and returning flow paths. The guide 9 extends from the center of the disk-shaped head 9j to the inner tube 9e.
Has a protruding shape. The pipe connection section 6 is connected to the circulation path 27 in the kettle of the circulation heating circuit 12 via a going pipe and a return pipe.
The joint 2 and the joint 3 communicating with are welded. The passage forming portion 17 is provided with a joint 2 in a space between the connection receiving pipe 7 and the guide 9.
And an annular outer passage 9g that communicates with the outside.

The inner pipe 9 e provided in the guide 9 is fitted to the pipe connection part 6 via the O-ring 5 and communicates with the joint 3. The flow path in the guide 9 that continues from the inner pipe 9e is bilaterally branched bilaterally symmetrically downward at the head 9j to form a right circulation path 9a and a left circulation path 9b. The right circulation path 9a has a right opening 9c, and the left circulation path 9b has a left opening 9c.
d is opened into the bathtub 14. The bifurcated right circulation path 9a and left circulation path 9b are formed with a predetermined angle θ (for example, 40 °) or more with respect to the perpendicular 32. The head 9j of the guide 9 communicates with the external passage 9g through the guide entrance 9f, and the right opening 9c and the left opening 9c.
A central circulation path 9i having a central opening 9h opened vertically toward the bottom of the bathtub at an intermediate position of d is formed. still,
A packing 33 is sandwiched between the guide 9 and the connection receiving pipe 7, and watertightness is maintained there.

A cap 4 as shown in FIG. 5 is fitted around the outer periphery of the connection outer tube 7 on the bathtub side so as to cover the entire passage forming portion 17 in a cup shape. A common side opening 4a facing the right opening 9c, the left opening 9d, and the center opening 9h provided in the guide 9 is opened on the side surface of the cap 4, and the side opening 4a has a bathtub hot water. Is circulated and passes through the side opening 4a, a side net filter 16a for filtering dust such as hair is fitted. Side net filter 1
6a, right opening 9c, left opening 9d, and central opening 9h
And a space between them. A plurality of front openings 4b are radially provided on the front of the cap 4, and a front net filter 16b is fitted into the front openings 4b.

A bath kettle 11 equipped with the bus adapter 1
Then, the return pipe 10a and the outgoing pipe 10b are connected via the joints 2 and 3 welded to the pipe connection section 6, and the heat exchanger 2
Circulate the bath water heated in step 1. The heated hot and cold water enters the guide 9 provided in the inside of the connection receiving pipe 7, and blows out into the bathtub 14 from the right opening 9 c and the left opening 9 d or the center opening 9 h which are the outlets of the guide 9.

When the return pipe 10a is connected to the joint 3, the bathtub hot water is sucked from the right opening 9c and the left opening 9d, passes through the return pipe 10a via the inner pipe 9e, and is heated by the heat exchanger. Then, it enters the outer passage 9g through the joint 2 from the going pipe 10b. Hot water flows from the outer passage 9g through the guide inlet 9f, through the central circulation passage 9i, and through the central opening 9h.
After being sprayed downward from the bottom of the bathtub, it is convected upward to stir the bathtub water. Since the bath adapter 1 is normally installed near the center of the side wall of the bathtub, the hot water spouted from the central opening 9h toward the bottom surface of the bathtub flows leftward or rightward in the bathtub 14. Since it is not eccentrically spouted and is spouted near the center of the bathtub 14,
The stirring performance is improved as compared with the conventional bath adapter that jets out only in the right or left direction, and the temperature of the bath tub can be quickly and uniformly made even between the left and right temperatures.

On the other hand, when the connection with the bath kettle 11 is reversed and the return pipe 10a is piped to the joint 2, the preceding path is completely reversed, and the bathtub hot water is sucked from the central opening 9h, After the heated hot and cold water is jetted diagonally downward symmetrically into the bathtub 14 from the right opening 9c and the left opening 9d,
The tub is heated by convection upward. Since the hot and cold water is spouted to both left and right sides in the bathtub 14, the stirring performance is greatly improved as compared with the conventional bus adapter that spouts in only one direction, so that the temperature of the hot and cold bathtub can be quickly and uniformly made uniform. be able to. In addition, since the right circulation path 9a and the left circulation path 9b are formed with a predetermined angle θ (for example, 40 °) or more opened with respect to the vertical line 32, that is, the central circulation path 9i, the right opening 9c or the left opening 9d is formed. The hot and cold water spouted from the central opening 9h is not directly sucked from the central opening 9h, and the hot and cold water spouted from the central opening 9h is not directly sucked from the right opening 9c or the left opening 9d. (Note that in the test by the applicant, it was obtained that the opening temperature of the bath tub could be made uniform without affecting the right opening 9c and the left opening 9d and the center opening 9h by forming the opening at 40 ° or more. Therefore, even if the outgoing pipe and the return pipe are connected to either the joint 2 or the joint 3 in this manner, good stirring performance of bathtub hot and cold water can be obtained,
Bathtub water temperature quickly becomes uniform.

When the bath water is sucked from the right opening 9c and the left opening 9d or the center opening 9h, the side opening 4a on the side surface of the cap 4 in any case.
Since dust such as hair passes through the side net filter 16a provided in the bath, the dust from the bathtub does not enter the bathtub. Moreover, the side net filter 16a is a common large filter that faces all of the right opening 9c, the left opening 9d, and the central opening 9h.
Even if dust is slightly clogged in 6a, the water absorption resistance does not increase so much. For this reason, it is possible to suppress a decrease in the water absorbing ability due to dust clogging, and it is possible to reduce the number of times of cleaning the side net filter 16a. Most of the bath water that is sucked or ejected is usually supplied through the side opening 4a. However, if the side net filter 16a of the side opening 4a is clogged, the front surface of the cap 4 may be removed. Since the front opening 4b is also provided, the bathtub hot water can be sucked or ejected through the front opening 4b.

Second Embodiment Next, a second embodiment will be described with reference to FIGS. Note that portions different from the first embodiment will be described, and the same reference numerals will be given to the overlapping portions, and description thereof will be omitted. The bus adapter 91 of the second embodiment is different from the bus adapter 1 of the first embodiment.
Basically, only the shape of the guide 99 is different.

The guide 99 of the bus adapter 91 has a shape in which an inner pipe 99e protrudes from the center of a disk-shaped head 99j, and this inner pipe 99e is fitted to the pipe connection portion 6 via the O-ring 5. And communicates with the joint 3. A packing 33 is interposed between the guide 99 and the connection receiving pipe 7, and watertightness is maintained there. The flow path in the guide 99 that continues from the inner tube 99e branches right and left at the head portion 99j, bends right downward in the middle, and bends rightward.
9a and the left circulation path 99b. The right circulation path 99a opens the right opening 99c, and the left circulation path 99b opens the left opening 99d into the bathtub 14. Therefore, the right opening 99c and the left opening 99d are configured to be symmetrical and open at a predetermined distance from each other in the vertical direction toward the bottom of the bathtub. The head 99j of the guide 99 communicates with the external passage 99g through the guide entrance 99f, and the right opening 99
A central circulation path 99 having a central opening 99h that opens vertically toward the bottom of the bathtub at an intermediate position between c and the left opening 99d.
i is formed. The guide 99 has a right opening 99.
c or the distance between the left opening 99d and the central opening 99h is formed to be a predetermined distance L (for example, 30 mm) or more.

When the return pipe 10a is connected to the joint 2, the bathtub hot water is sucked through the central opening 99h, and the central circulation path 99a is drawn.
i, through the outer passage 99g, through the joint 2, through the return pipe 10a, is heated by the heat exchanger, and enters the inner pipe 99e through the joint 3 from the outgoing pipe 10b. The heated water is
Through the inner pipe 99e, it is jetted to the bathtub 14 from the right opening 99c and the left opening 99d. The hot water flows upward just after being spouted just below the bottom of the bathtub. Since both the right opening 99c and the left opening 99d are opened directly below the bottom of the bathtub, hot water is blown out directly below the bottom of the bathtub, which is the lowest temperature. In comparison, the temperature of the bath water becomes even faster. Furthermore, since both of these openings are provided symmetrically on the bus adapter 91 which is installed substantially at the center of the side wall of the bathtub 14, left and right sides of the bathtub 14 are not jetted to the left or right in the bathtub 14. The stirring performance is further improved. Conversely, when the return pipe 10a is piped to the joint 3, the hot and cold water sucked from the right opening 99c and the left opening 99d and heated from the center opening 99h as in the first embodiment. After being spouted directly below, the bath tub is convected upward to stir the bath tub water satisfactorily, so that the bath tub water temperature can be quickly and uniformly made even between the left and right temperatures.

In addition, the right opening 99c and the left opening 99d
Are formed so that the distance from the central opening 99h is not less than a predetermined distance L (for example, 30 mm).
The hot water spouted from the right opening 99c or the left opening 99d is not directly sucked from the central opening 99h, and the hot water spouted from the central opening 99h is directly sucked from the right opening 99c or the left opening 99d. Never. (In the test by the applicant, 30 mm
By forming the gaps as described above, the data that the right and left openings 99c and 99d and the center opening 99h can make the bath tub water temperature uniform without affecting each other was obtained. )

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention. is there.

[0025]

As described in detail above, claim 1 of the present invention
According to the described bath adapter of the forced circulation bath kettle, unlike conventional bath adapters, hot water is not spouted to the left or right in the bathtub, so that the stirring performance is improved, and the bathtub hot and cold water in the left and right is even. The temperature can be made uniform quickly.

Further, according to the bath adapter of the forced circulation bath kettle according to the second aspect of the present invention, the hot water can be spouted just below the bottom of the bathtub without being biased to the left or right in the bathtub. In addition, it has an excellent effect that the temperature of the bath water can be made uniform more quickly.

Further, according to the bus adapter of the forced circulation type bath kettle according to the third aspect of the present invention, the filter for filtering hot and cold water in the bathtub is larger than the conventional filter, thereby suppressing a decrease in water absorption capacity due to clogging of dust. It is possible to reduce the number of times of cleaning the filter for filtration.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a bus adapter of a forced circulation bath kettle as a first embodiment.

FIG. 2 is a schematic configuration diagram of a bus adapter of a forced circulation bath kettle as a first embodiment.

FIG. 3 is a schematic configuration diagram of a bus adapter of the forced circulation bath kettle as the first embodiment.

FIG. 4 is a schematic configuration diagram of a bath kettle provided with a bus adapter.

FIG. 5 is an external view of a cap.

FIG. 6 is a schematic configuration diagram of a bus adapter of a forced circulation bath kettle as a second embodiment.

FIG. 7 is a schematic configuration diagram of a bus adapter of a forced circulation bath kettle as a second embodiment.

FIG. 8 is a schematic configuration diagram of a bus adapter of a forced circulation bath kettle as a second embodiment.

FIG. 9 is a schematic view of a conventional bus adapter as viewed from inside a bathtub.

[Explanation of symbols]

1, 91: bus adapter, 2, 3: coupling, 4: cap, 4a: side opening, 5: O-ring, 6: piping connection,
7 ... Connection outer tube, 8 ... Packing, 9,99 ... Guide, 9
a, 99a: right circulation path, 9b, 99b: left circulation path, 9
c, 99c: right opening, 9d, 99d: left opening, 9
e, 99e ... inner pipe, 9f, 99f ... guide entrance, 9g,
99g: outer passage, 9h, 99h: central opening, 9i, 9
9i: Central circulation path, 9j, 99j: Head, 10a: Return pipe, 10b: Outgoing pipe, 11: Bath pot, 12: Circulation heating circuit, 13: Hot water supply circuit, 14: Bathtub, 16a: Side net filter.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L036 AD01 AD22 AD31 3L037 DA02 DC08

Claims (3)

[Claims] 1. A pipe connection having a first connection port for connecting one of an outgoing pipe and a return pipe for circulating bath water out of the bath tub, and a second connection port for connecting the other, and connected to the pipe connection section. And a passage forming portion provided therein with a first passage and a second passage which are independently communicated with the first connection port and the second connection port, respectively, and are open to the bathtub side. In the bath adapter for a bathtub, the first passage is branched in two directions on the bathtub side, and both openings of the branched passage open diagonally downward left and right toward the bottom of the bathtub. A bus adapter for a forced-circulation bath kettle, characterized in that the openings of the two passages open right below the bottom of the bathtub at the center of the left and right openings provided in the first passage. 2. A pipe connection having a first connection port for connecting one of an outgoing pipe and a return pipe for circulating bath water out of the bath tub and a second connection port for connecting the other, and connected to the pipe connection section. And a passage forming portion provided therein with a first passage and a second passage which are independently communicated with the first connection port and the second connection port, respectively, and are open to the bathtub side. In the bath adapter for a bathtub, the first passage is branched in two directions on the bathtub side, and both openings of the branched passage are directed to directly below the bottom of the bathtub in parallel with each other with a predetermined interval left and right. The forced circulation, wherein the opening of the second passage opens right below the bottom of the bathtub at the center of both openings provided at a predetermined interval on the left and right of the first passage. Bath adapter for bathtub. 3. A cap having a common opening facing all openings of the first passage and the second passage, and a cap provided with a filter for filtering over the entire opening is attached to the bathtub side of the passage forming portion. The bus adapter of a forced circulation bath kettle according to claim 1 or 2, characterized in that: