JPH08206026A - Bath water-circulating nozzle - Google Patents

Abstract

PURPOSE: To provide a bath water-circulating nozzle of non-polarity type capable of easily assembling and connecting a hot water suction pipe and discharge pipe without needing distinction and also reducing cost. CONSTITUTION: A partitioning piece 16 is furnished in a single piece with one communication pipeline 16b which opens to the bottom 6c side of a buthtub 6 upon flexing downward from the axis of a cap-shaped body part having a smaller diameter than the inside diameter of a bathtub fastening tool 10 with respect to the body part, and a slant opening facing downward aslant is formed in a part of the peripheral wall 16f of the body part located apart from the communication pipeline 16b. A discharge pipe 4 is installed as leading to this pipeline 16b, on the outside whereof a communication chamber 20 partitioned therefrom is formed by the partitioning piece 16 and bathtub fastening tool 10, and a suction pipe 2 is put in communication with the slant opening through this chamber 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath circulation nozzle for circulating hot water in a bath by integrally connecting a hot water suction pipe and a hot water discharge pipe communicating with a heater at one location of the bath.

[0002]

2. Description of the Related Art As a circulation nozzle used in a forced circulation type bath apparatus, a so-called non-polar type nozzle has conventionally been provided which can be connected without distinction between a suction pipe and a discharge pipe of hot water.

As an example thereof, FIGS. 6 and 7 show the construction of a non-polar type bath circulation nozzle of this type described in Japanese Patent Laid-Open No. 6-277158.

This bath circulation nozzle is a heater (not shown)
The hot water suction pipe 100 and the discharge pipe 102 communicating with the bathtub 1
Pipe connection tool 10 for connecting and connecting in one place in 06
4 is provided.

The pipe connecting member 104 includes a pair of connection ports 1
It has a main body portion 104c having 04a and 104b, and a protruding cylindrical portion 104d extending from the main body portion 104c in the axial direction and communicating with one of the connection ports 104a. In this example, the suction pipe 100 is connected to one connection port 104a, and the discharge pipe 102 is connected to the other connection port 104b.

Further, a hollow bathtub fastener 108 is fastened to the pipe connector 104 from the inside of the bathtub 106 through the opening 106b formed in the side wall 106a of the bathtub 106 with its screw portion 108a, whereby the pipe Each flange portion 104e, 1 of the connector 104 and the bathtub fastener 108
Both 08b are watertightly fixed via the packing 110 with the side wall 106a of the bathtub 106 interposed therebetween.

Further, at the front position of the bathtub fastener 108, a partition 112 for partitioning the waterway is attached. The partitioning tool 112 includes two members, an inner member 114 and an outer member 116.

The inner member 114 is provided with a cylindrical portion 114a and a disc portion 114b projecting outward in the radial direction from one end thereof, and a pair of water passages 114c are formed on the lower side of the disc portion 114b.

The outer member 116 has a substantially cap-like shape as a whole, and has a pair of partition walls 116b formed vertically in parallel with each other at the inner position of the outer peripheral wall 116a. Wall 116b is outer wall 116a
The openings 116c are formed at the portions respectively contacting the
An opening 116d is provided at the lower end of the outer peripheral wall 116a, and the opening 1d is formed on the outer surface of the outer peripheral wall 116a.
Mixing prevention protrusions 116e are formed on the left and right while sandwiching 16d.

The outer member 116 is replaced by the inner member 114.
Are superposed on each other to form a pair of upper and lower boss portions 11 of the outer member 116.
By fixing 6f with the screw 118, the outer member 116
The partition wall 116b of the inner member 114 and the disk portion 114b of the inner member 114 form a communication pipe 120 that is bifurcated into an eight shape, and the outer peripheral wall 116a of the outer member 116, the lower partition wall 116b, And the disc portion 1 of the inner member 114
A water passage chamber 122 is formed by being partitioned by 14b. As a result, both openings 116c of the outer member 116 are communicated with the suction pipe 100 via the respective communication conduits 120, the cylindrical portion 114a of the inner member 114, and the protruding cylindrical portion 104d of the pipe connector 104.

Further, the inner member 114 is the bathtub fastener 1.
By being fixed to the pair of right and left screw holes 108c of the screw 08 with screws 119, the communication chamber 120 defined by the communication pipe 120 is defined between the inner member 114 and the bathtub fastener 108.
The opening 116e of the outer member 116 is thereby formed through the water passage chamber 122, the water passage port 114c of the inner member 114, and the communication chamber 124.
It is connected to 2.

Further, a cap-shaped filter 126 is fixed to the outer member 116 with a screw 128.

In this structure, when a circulation pump (not shown) is started and heating is started by the heater, the bath water is filtered through the filter 126 and then the left and right openings 116c of the outer member 116. To each communication conduit 120
Into the tubular portion 114a of the inner member 114,
It flows out to the suction pipe 100 through the protruding cylindrical portion 104d of the pipe connector 104 and the connection port 104a of the pipe connector 104.

Further, the bath water heated by the heater flows into the communication chamber 124 from the discharge pipe 102 through the connection port 104b of the pipe connector 104, and further flows through the left and right water flow ports 114c of the inner member 114. Through which it flows into the water flow chamber 122, is discharged from the opening 116e of the outer member 116, and then flows out through the filter 126 toward the bottom portion 106c of the bath 106.

Therefore, since the hot water once flows out toward the bottom portion 106c of the bathtub 106 and then rises, the bathwater is effectively agitated, and the unevenness of the hot water temperature due to the difference in water level between the upper and lower sides is eliminated. It

On the other hand, when the suction pipe 100 and the discharge pipe 102 are reversely connected to the pipe connector 104, that is, the discharge pipe 102 is at one connection port 104a and the suction pipe 100 is at the other connection port 104b. When each is connected, the bath water is filtered from the bottom surface 106c side of the bath 106 through the filter 126, then flows into the water passage chamber 122 through the opening 116e of the outer member 116, and It flows into the communication chamber 124 through the water passages 114c on the left and right of the member 114, and the connection port 104b of the pipe connector 104.
Out of the suction pipe 100.

The bath water heated by the heater passes from the discharge pipe 102 through the connection port 104a of the pipe connector 104 and the projecting cylindrical portion 104d of the pipe connector 104 to the tubular portion 114a of the inner member 114. After flowing in and further branching in each of the left and right communication pipes 120, it is discharged obliquely downward from the left and right openings 116c of the outer member 116, and then passes through the filter 126 to the bottom 106 of the bath 106.
Spill towards c.

Also in this case, the hot water once flows out toward the bottom portion 106c of the bathtub 106 and then rises, so that the bathwater is effectively agitated, and the hot water temperature becomes uneven due to the difference in water level between the upper and lower sides. Will be resolved.

[0019]

However, the conventional configuration shown in FIGS. 6 and 7 has the following problems.

(1) Since the partition 112 for partitioning the water passages 120 and the water passages 124 has a complicated structure, it is composed of two members, an inner member 114 and an outer member 116. Need to be formed, and both 11
Screw 118 and packing 1 for watertight connection of 4,116
Since 30, 132 are required, the number of parts is large and assembly is troublesome.

Moreover, the partitioning tool 112 is made up of the two members 11
When it is composed of 4,116, each member 114,116
The cost is increased because a separate mold is required.

(2) Moreover, the partition member 112 has a structure in which the inner member 114 thereof is fixed to the screw hole 108c of the bathtub fastener 108 with a screw 119, but the bathtub fastener 108 is kept watertight in the bathtub 106. In fixing, the positions of the left and right screw holes 108c may not always be horizontal, and at that time, the partitioning tool 112 is also attached in an inclined state, and the positions of the left and right communication pipes 120 are relative to the vertical line. It does not have mirror symmetry, the position of the opening 116c shifts up and down, and the opening 116d also becomes oblique without facing the bottom 106c of the bathtub 106, so that suction and discharge of bathwater cannot be performed smoothly.

On the contrary, the opening 116d has the bottom portion 1 of the bathtub 106.
06c, that is, the left and right screw holes 108c
If the bathtub fastener 108 is fastened so as to keep horizontal, the fastening force to the bathtub 106 via the packing 110 will be insufficient, and problems such as insufficient watertightness will occur.

The present invention has been made in order to solve the above-mentioned problems, and is a non-polar type bath circulation nozzle which can be connected without distinction between a hot water suction pipe and a hot water discharge pipe, and is simpler than conventional ones. With such a structure, it is an object to reduce the number of parts, reduce the cost, and improve the assemblability.

[0025]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a side wall of a bathtub with respect to a pipe connector in which a suction pipe and a discharge pipe of hot water communicating with a heater are connected together. A tubular bathtub fastener is fastened through the formed opening, the pipe connector and the bathtub fastener are both watertightly fixed across the side wall of the bathtub, and at the front position of the bathtub fastener. A bath circulation nozzle equipped with a partition for a waterway section has the following configuration.

That is, in the present invention, the bathtub fastener has a plurality of bosses for fixing the partitioning tool formed on one end face side thereof at a predetermined pitch along the circumferential direction, and the partitioning tool is also provided. The tool is for the cap-shaped body,
One communication conduit having a diameter smaller than the inner diameter of the bathtub fastener and bent downward from the central axial direction of the main body and opening toward the bottom of the bathtub is integrally formed and separated from this communication conduit. An oblique opening that opens obliquely downward is formed in a part of the outer peripheral wall of the main body, one of the suction pipe and the discharge pipe communicates with the communication conduit, and the partition tool and the bathtub fastening. By the connection with the boss portion of the tool, a communication chamber that is partitioned from the communication pipe is formed outside the communication pipe, and the suction pipe and the discharge pipe are connected to the other side through the communication chamber. The diagonal opening is communicated.

[0027]

In the above structure, it is assumed that the suction pipe is connected to the communication chamber formed by the partition and the bathtub fastener, and the discharge pipe is connected to the communication pipe of the partition.

In this case, when reheating is started by the heater, the bath water flows from the opening formed in a part of the outer peripheral wall of the main body of the partitioning tool into the communication chamber defined outside the communication conduit. Then, it further flows out from the connection port of the pipe connector to the suction pipe.

Further, the bath water heated by the heater flows out from the discharge pipe toward the bottom surface of the bath through the communication conduit of the partitioning tool.

Therefore, since the hot water flows out toward the bottom surface of the bathtub and rises, the bathwater is effectively agitated, and the nonuniformity of the hot water temperature due to the difference in water level between the top and bottom is eliminated.

On the contrary, it is assumed that the discharge pipe is connected to the communication chamber formed by the partitioning tool and the bathtub fastener, and the suction pipe is connected to the communication channel of the partitioning tool.

In this case, when reheating is started by the heater, the bath water flows into the communication conduit of the partitioning tool from the bottom surface of the bath, and passes from the communication conduit to the suction pipe through the connection port of the pipe connector. leak.

Further, the bath water heated by the heater flows from the discharge pipe into the communication chamber defined by the outside of the communication pipe, and is further formed on a part of the outer peripheral wall of the main body of the partitioning tool. It is discharged from the diagonal opening and flows out toward the bottom of the bath.

Also in this case, since the hot water flows out toward the bottom surface of the bathtub and rises, the bathwater is effectively stirred, and the nonuniformity of the hot water temperature due to the difference in water level between the top and bottom is eliminated. .

As described above, in the present invention, since the water passages for sucking in and discharging the bath water can be divided from each other by the single-part divider, the number of parts can be reduced and the cost can be reduced.

Further, since the boss portion is formed on the one end face side of the bathtub fastener at a predetermined pitch along the circumferential direction, even when the bathtub fastener is watertightly fixed to the bathtub fastener, The positions of the left and right openings of the tool can be made substantially mirror-symmetrical with respect to the vertical line, and the tool can be attached with the opening end of the communication conduit facing the bottom of the bathtub. Therefore, the suction and discharge of the bath water can always be smoothly performed, and the assemblability is improved in combination with the reduction in the number of parts.

[0037]

FIG. 1 is a vertical sectional view of a bath circulation nozzle according to an embodiment of the present invention.

The bath circulation nozzle 1 is provided with a pipe connector 8 for connecting the hot water suction pipe 2 and the discharge pipe 4 communicating with a heater (not shown) at one location of the bath 6.

The pipe connector 8 is made of, for example, brass, and has a bottomed cylindrical main body portion 8a and a pair of connection ports 8b and 8b.
c is formed, and a flange portion 8d is formed on the open end side of the main body portion 8a so as to project outward in the radial direction.
It has a protruding cylindrical portion 8e which extends in the axial direction of the main body portion 8a and communicates with one connection port 8b.

In this example, the suction pipe 2 is connected to one connection port 8b, the discharge pipe 4 is connected to the other connection port 8c, and the flange 12 is provided with the packing 12 and the projecting cylinder. An O-ring 11 is fitted on the tip of the portion 8e.

Further, there is a bathtub fastener 10 for fixing the above-mentioned pipe connector 8 to the bathtub 6.

The bathtub fastener 10 is made of, for example, polyplastic, and as shown in FIGS. 2 and 3,
It has a cylindrical body portion 10a and a flange portion 10b projecting outward in the radial direction from one end side thereof. A thread portion 10c is provided on the outer periphery of the body portion 10a, and a screw portion 10c is provided on the inner periphery portion of the body portion 10b. A projection 10e for hooking a fastening tool at the time of fastening the pipe connector 8 is formed, and a boss portion 10d for screwing a partitioning tool 16 described below is formed on the flange portion 10b along the circumferential direction. It is formed at a large number of places (eight places in this example) at a predetermined pitch.

Then, the bathtub fastener 10 is inserted from the inside of the bathtub 6 through the opening 6b formed in the side wall 6a of the bathtub 6, and the threaded portion 10c is fastened to the pipe connector 8 to thereby connect the pipe connector. 8 and each flange portion 8 of the bathtub fastener 10
Both d and 10b are watertightly fixed with packing 12 and 14 sandwiching the side wall 6a of the bathtub 6.

Furthermore, at the front position of the bathtub fastener 10, a partitioning tool 16 for partitioning the waterway is attached.

The partition 16 is made of, for example, polyplastic, is colored black for easy distinction from the bathtub fastener 10, and has a cap-shaped main body as shown in FIGS. 4 and 5. The portion 16a and the communication conduit 16b are integrally formed.

The main body portion 16a includes a disc portion 16e and an outer peripheral wall 16
The disc portion 16e is provided with a boss portion 16m for mounting a filter 22 described later in the center portion, an air vent hole 16g in the upper portion, and screw holes 16h in three circumferential positions. There is. In addition, the outer peripheral wall 16f is formed with diagonal openings 16i that open obliquely downward at mirror-symmetrical positions of a vertical axis passing through the center of the disk portion 16e.
A downward guide protrusion 16j is formed so as to sandwich the diagonal opening 16i from above and below.

On the other hand, the communication conduit 16b is a cylindrical horizontal conduit 1 extending in the axial direction from the center of the disc portion 16e of the main body 16a.
6c and a downward pipe 16d of a rectangular cross section which is bent downward from the horizontal pipe 16c in an orthogonal direction, descends along the disc portion 16e of the main body 16a, and opens toward the bottom 6c of the bath 6. Consists of.

The lateral width of the downward pipe 16d is somewhat smaller than the distance between the bosses 10d so that the downward pipe 16d passes between the adjacent bosses 10d of the bathtub fastener 10. Is set.

Then, the partitioning tool 16 is connected to the pipe connecting tool 1
When fixing to 0, the horizontal pipe line 16c of the partitioning tool 16 is externally fitted to the protruding cylindrical portion 8e of the pipe connecting tool 8, and
The downward pipe line 16d passes between the left and right boss portions 10d of the bathtub fastener 10, its downward opening end 16k is directed to the bottom portion 6c of the bathtub 6, and each screw hole 16h is formed in a large number in the bathtub fastener 10. Partition tool 1 so that it matches three of the bosses 10d
After adjusting the direction of 6, the screw 18 is fixed to the boss portion 10d of the bathtub fastener 10 through the screw hole 16h.

In the state where the partitioning tool 16 is fixed to the pipe connecting tool 10, a communication chamber 20 defined by the communication conduit 16b is formed between the communication conduit 16b and the body portion 10a of the bathtub fastener 10. The suction pipe 2 and the diagonal opening 16i of the partitioning tool 16 are communicated with each other through the communication chamber 20. Also,
The communication conduit 16b of the partitioning tool 16 is connected to the discharge pipe 4 via the protruding cylindrical portion 8e of the pipe connector 8.

Further, a cap-shaped filter 22 is fixed to the front end of the partitioning tool 16 with screws 24.
The filter 22 is formed, for example, by punching and molding two stainless steel thin plates, and sandwiching a mesh for removing dust, hair, and the like between the punched portions between the two stainless steel thin plates.

In the above structure, when the circulation pump (not shown) is started and the heater starts reheating, the bath water is filtered through the filter 22 and then the left and right diagonal openings of the partition 16 are opened. From the portion 16i, it flows into the communication chamber 20 between the communication pipe line 16b and the body portion 10a of the bathtub fastener 10, and further flows out from the one connection port 8b of the pipe connection tool 8 to the suction pipe 2.

Bath water heated by a heater (not shown) flows out from the discharge pipe 4 to the other connection port 8c of the pipe connector 8, passes through the projecting cylindrical portion 8e, and connects the partition pipe 16 to the communication pipe. Horizontal pipe line 16c and downward pipe line 16d that form the line 16b
Through the downward opening end 16k through the filter 2
It passes through 2 and flows out toward the bottom 6c of the bath 6.

Therefore, since the hot water once flows out toward the bottom portion 6c of the bathtub 6 and rises, the bathwater is effectively stirred, and the nonuniformity of the hot water temperature due to the difference in water level between the upper and lower sides is eliminated. To be done.

Further, the left and right diagonal openings 1 of the partitioning tool 16
Since 6i and the downward opening end 16k of the communication pipe 16b are sufficiently separated from each other, the hot water discharged from the downward opening end 16k of the communication pipe 16b is sucked in from the oblique opening 16i. There is no risk of a so-called short cycle that occurs when mixed with. Therefore, the problem that the reheating is stopped before the hot water flowing into the heater becomes high and the hot water in the bathtub boils up does not occur.

Contrary to the above, when the discharge pipe 4 is connected to the one connection port 8b and the suction pipe 2 is connected to the other connection port 8c, when reheating is started by a heater (not shown). The bath water passes from the bottom 6c side of the bath 6 through the filter 22 and from the downward opening end 16k of the partitioning tool 16 to the communication conduit 1
6b, and further flows out to the suction pipe 2 through the other connection port 8c of the pipe connector 8.

The bath water heated by the heater flows out of the discharge pipe 4 into the communication chamber 20 between the communication pipe line 16b and the body portion 10a of the bathtub fastener 10, and passes through the communication chamber 20. And is discharged from the diagonal opening 16i of the partitioning tool 16. At this time, the guide protrusion 16j regulates the flow so that the liquid flows downward and obliquely downward. Then, this hot water flowing out passes through the filter 22 and flows out toward the bottom portion 6c of the bathtub 6.

Also in this case, the hot water is heated at the bottom portion 6 of the bathtub 6.
Since it flows out toward c and then rises, the bath water is effectively agitated, unevenness in the hot water temperature due to the difference in water level between the upper and lower sides is eliminated, and communication with the left and right diagonal openings 16i of the partitioning tool 16 is made possible. Since the downward opening end 16k of the pipe line 16b is sufficiently separated from each other, a short cycle does not occur.

As described above, according to the present invention, since the water passages for sucking in and discharging the bath water can be divided from each other by the partitioning tool 16 of a single part, the number of parts is reduced and the cost is reduced as compared with the conventional one. Can be planned.

Further, since the tub portions 10d are formed on the one end surface side of the flange portion 10b of the bathtub fastener 10 at a predetermined pitch along the circumferential direction, the bathtub fastener 10 is attached to the bathtub fastener 6 by the bathtub 6a. Even if it is watertightly fixed to the side wall 6a of
The downward opening end 16k of the communication conduit 16b of the partitioning tool 16 faces the bottom portion 6c of the bathtub 6, and the left and right diagonal opening portions 16i are substantially mirror-symmetrical with respect to the downward opening end 16k.
The partitioning tool 16 can be attached. Therefore, the suction and discharge of the bath water can always be smoothly performed, and the assembling property is improved in combination with the reduction in the number of parts.

[0061]

According to the present invention, the following effects can be obtained.

(1) In the partitioning tool, since the communication conduit is integrally formed with the main body of the partitioning tool, the number of parts can be reduced as compared with the conventional one, the assemblability is improved, and the cost is reduced. be able to.

(2) Since the tub fasteners are formed on the one end face side of the tub portion at a plurality of locations along the circumferential direction at a predetermined pitch, the tub fasteners are watertightly fixed to the bathtub fastener. However, the positions of the left and right openings of the partitioning tool can be made substantially mirror-symmetric with respect to the vertical line, and the partitioning tool can be attached with the opening end of the communication conduit facing the bottom of the bathtub.

Therefore, the suction and discharge of the bath water can always be smoothly performed, and the assembling property is improved in combination with the reduction in the number of parts.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a bath circulation nozzle according to an embodiment of the present invention.

FIG. 2 is a front view of a bathtub fastener that constitutes the bath circulation nozzle of FIG.

3 is a cross-sectional view of the bathtub fastener of FIG. 2 taken along the line AA.

FIG. 4 is a cross-sectional view of a partitioning tool that constitutes the bath circulation nozzle of FIG. 1.

5 is a cross-sectional view of the partitioning tool of FIG. 4 taken along the line BB.

FIG. 6 is a view showing a conventional bath circulation nozzle, which is shown in FIG.
It is sectional drawing which follows the C line.

7 is a cross-sectional view of the bath circulation nozzle of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bath circulation nozzle, 2 ... Suction pipe, 4 ... Discharge pipe, 6 ... Bathtub, 6a ... Side wall, 6b ... Opening part, 6c ... Bottom part, 8 ... Pipe connection tool, 10 ... Bathtub fastener, 10d ... Boss part, 16 ... Partition tool, 16a ... Main body part, 16b ... Communication conduit, 16f ... Outer peripheral wall, 16i ... Oblique opening part, 22 ... Communication chamber.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuro Hashimoto 32 Akashi-cho, Chuo-ku, Hyogo Prefecture Noritsu Co., Ltd. Within

Claims (1)

[Claims] 1. A tubular bathtub fastener is fastened through an opening formed in a side wall of a bathtub to a pipe connector in which a suction pipe and a discharge pipe of hot water communicating with a heater are connected together. In the bath circulation nozzle, the pipe connector and the bathtub fastener are both watertightly fixed with the side wall of the bathtub sandwiched, and a partition for a waterway partition is attached to a front position of the bathtub fastener. In the bathtub fastener, boss portions for fixing the partitioning tool to one end surface side thereof are formed at a plurality of positions along the circumferential direction at a predetermined pitch, and the partitioning tool is a cap-shaped main body. To the department
One communication conduit having a diameter smaller than the inner diameter of the bathtub fastener and bent downward from the central axial direction of the main body and opening toward the bottom of the bathtub is integrally formed and separated from this communication conduit. An oblique opening that opens obliquely downward is formed in a part of the outer peripheral wall of the main body part, and one of the suction pipe and the discharge pipe communicates with the communication conduit, and the partitioning tool. By connecting with the boss portion of the bathtub fastener, a communication chamber that is partitioned from the communication pipe is formed outside the communication pipe, and the suction pipe and the discharge pipe are connected to each other through the communication chamber. A bath circulation nozzle, wherein the diagonal opening is communicated with the bath opening nozzle.