JP3662071B2 - Hot water circulation connection for bath - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a hot water supply / circulation connector for bathtubs used for connecting hot water to a bathtub and forcibly circulating hot water.
[0002]
[Prior art]
In general, the bathtub is connected to the bath with a connector. This connector has a hot water forward path and a hot water return path, and operates a circulation pump provided on the side of the bathtub to move hot water in the bathtub from the return path path of the connector to the side of the bathtub. At the same time, the hot water returned to the side of the bath is heated by the bath and is discharged into the bathtub by the circulation pump through the forward passage of the connector. As described above, the hot water is forcibly circulated between the bathtub and the bath tub via the connection tool by the circulation pump.
[0003]
As a connection tool for forcibly circulating hot water as described above, various kinds of connection tools such as the connection tool described in Japanese Utility Model Publication No. 5-19859 have been developed.
[0004]
[Problems to be solved by the invention]
However, in the conventional various connecting devices, both the connecting device main body and the filter cap have a circular shape as a whole, and a plurality of engaging portions are formed on each outer peripheral portion.
[0005]
For this reason, each time a filter cap is attached to the connector body, the position of the engaging part of the connector body and the position of the engaging part of the filter cap must be fitted to each other. There was a problem that it took time for the engaging work. For this reason, it has been desired to develop a connector that allows a filter cap to be easily and quickly attached to a connector body.
[0006]
The present invention has been developed to solve the above-mentioned problems, and the object of the present invention is to make it possible to easily and quickly attach the filter cap, and as a priming water. It is providing the hot-water supply circulation connection tool for bathtubs which also has the function to retain hot water inside temporarily.
[0007]
[Means for Solving the Problems]
Therefore, the present invention has the following configuration in order to effectively achieve the above object. That is, the hot water circulation connector for a bathtub according to the first aspect of the present invention connects a connecting pipe that is divided into a central passage and an outer peripheral passage and communicates with the central passage and a connecting pipe that communicates with the outer peripheral passage. A bathtub fitting that is connected to the bathtub fitting and that has a passage communicating with each of the passages, and is inserted into the passage of the bathtub sandwiching tool. A cylindrical portion that can be fitted so as to communicate with the central passage of the mounting bracket is formed, and a passage that communicates with the outer peripheral passage of the bathtub mounting bracket via the passage of the bathtub clamping tool is formed on one outer peripheral portion of the cylindrical portion. formed, and the hot water discharge port and a hot water supply passage divider formed by forming a hot water return port, filter cap can Rukoto to be fitted removably so as to cover the front and the outer peripheral surface of the hot water supply passage divider Bathtub supply consisting of In the circulation connector, and a lower end which is part of the outer peripheral surface of the hot water supply passage divider, with formed flat and the lower end is a part of the outer peripheral surface of the filter cap opposed to the lower end, the lower end of the filter cap The filter cap is configured so that it can be externally fitted by sliding it from the lower end where the opening is formed from the upper end side to the lower end side of the hot water passage dividing tool .
[0008]
Moreover, the hot-water supply circulation connection tool for bathtubs according to the second aspect of the present invention is configured as follows in the structure of the first aspect. That is, the hot water supply passage dividing tool has a cylindrical portion that can be inserted into the passage of the bathtub sandwiching tool and communicated with the central passage of the bathtub mounting bracket, and the hot water supply passage division communicates with the cylindrical portion. And a first trap passage portion in which hot water can be retained in a part of the first passage, and a bathtub in an outer peripheral portion of the cylindrical portion. The second passage communicates with the outer peripheral passage of the bathtub fitting through the passage of the sandwiching tool, and has a second trap passage portion in which hot water can stay in a part of the second passage, and the second passage. The trap passage portion is formed so as to be guided to the second external opening opened to the hot water supply passage dividing tool.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view of a hot water supply / circulation connector for bathtubs according to an embodiment of the present invention. The hot water supply / circulation connector for bathtubs 1 includes a bathtub mounting bracket 2 and a packing 2a, a bathtub sandwiching tool 3, The hot water supply passage dividing tool 4 and the filter cap 5 are configured.
[0010]
The bathtub mounting bracket 2 has a bottomed cylindrical shape with one end opened, and a flange 8 is formed at the opening end 7.
[0011]
A thread groove 9 is formed on the inner peripheral surface near the opening end 7 so as to be screwed to the bathtub sandwiching tool 3. A cylindrical body 10 is integrally formed from the bottom at the center of the hollow bathtub mounting bracket 2. The front end 10 a of the cylindrical body 10 is formed so as to be substantially flush with the open end 7 of the bathtub mounting bracket 2. The inside of the bathtub mounting bracket 2 is divided into two internal spaces by the cylindrical body 10, and the central passage 6 a is formed in the cylindrical body 10 and the outer peripheral passage 6 b is formed on the outer periphery of the cylindrical body 10.
[0012]
Further, holes (not shown) are formed at the bottom position of the bathtub fitting 2 where the passages 6a and 6b are located. Two connecting pipes 11 and 12 are provided so as to communicate with the passages 6a and 6b through the holes. The connecting pipe 11 communicates with the central passage 6a, and the connecting pipe 12 communicates with the outer peripheral passage 6b. Further, threaded grooves 13a and 13b are formed at the ends of the connecting pipes 11 and 12, respectively.
[0013]
Next, the bathtub sandwiching tool 3 (see FIGS. 1 and 2) is entirely formed of a synthetic resin, and a screw groove 14 is formed on the outer peripheral surface so that the screw groove 9 can be screwed together. It consists of a cylindrical part 15 and a flange part 16 formed at one end of the cylindrical part 15, and a locking groove part 17 is formed on the outer peripheral surface part of the flange part 16. The passage 18 of the tubular body portion 15 faces each of the passages 6a and 6b of the bathtub fitting 2, and when the hot water supply passage divider 4 described later is attached to the bathtub sandwiching tool 3, the passage of the bathtub sandwiching tool 3 is provided. 18 communicates with the outer peripheral passage 6 b of the bathtub mounting bracket 2.
[0014]
The hot water supply passage dividing tool 4 (see FIG. 1) includes a passage dividing member 19 and a passage dividing main body 20, and the inner surfaces of the passage dividing member 19 and the passage dividing main body 20 are opposed to each other. It is formed to be configured.
[0015]
As shown in FIGS. 1, 3, and 11, the passage dividing member 19 is inserted into the passage 18 of the tubular body portion 15 of the bathtub sandwiching tool 3 and communicates with the central passage 6 a of the bathtub fitting 2. A cylindrical portion 19a that can be fitted in this way is formed in the center. Furthermore, a first passage 19d that communicates with the cylindrical portion 19a and is guided to the first external opening 19c is formed on the inner surface side of the main body portion 19b. The first passage 19d is formed so as to communicate with the first external opening 19c by forming a semicircular passage after forming a passage inclined slightly upward from the center of the cylindrical portion 19a. The first trap passage portion 19e capable of temporarily retaining hot water in the first passage 19d is a passage from a passage inclined slightly upward to the right from the center of the cylindrical portion 19a to the entrance portion of the semicircular passage. It is an area.
[0016]
Moreover, the 2nd channel | path 19f connected to the outer periphery channel | path 6b of the bathtub mounting bracket 2 via the channel | path 18 of the said bathtub clamping tool 3 is formed in the outer peripheral part of the said cylindrical part 19a. The second passage 19f is divided and formed by the partition wall 19i from the first passage 19d, and from one end portion 19k closed by the partition wall 19j, the bathtub mounting bracket 2 is connected via the passage 18 of the bathtub sandwiching tool 3. It communicates with the outer peripheral passage 6b.
[0017]
The second passage 19f is formed in a small semicircular shape from the one end portion 19k along the first passage 19d and then formed straight downward, and is further formed in a semicircular shape so as to communicate with the second external opening 19g. It is formed to do. The second trap passage portion 19h capable of temporarily retaining hot water in the second passage 19f is a passage region in front of the semicircular shape that communicates with the second external opening 19g.
[0018]
The first external opening 19c and the second external opening 19g are formed in a semicircular cross section so as to protrude from both the left and right sides near the lower part.
[0019]
On the other hand, the passage division main body 20 is formed so that a part 20a of a circular outer periphery is formed flat and the other outer periphery is surrounded by an outer peripheral wall 20b as shown in FIGS. Yes. On the outside of the outer peripheral wall 20b, locking projections 20c are formed at a plurality of locations. The convex portion 20c is for locking a filter cap 5 described later to the passage division main body 20. On the inner side of the outer peripheral wall 20b, locking wall portions 20d are formed at a plurality of locations with a constant interval as shown in the figure. A locking portion 20e is formed on the inner side at the tip of the locking wall portion 20d. The locking portion 20e of the locking wall portion 20d is fitted into the locking groove portion 17 of the bathtub sandwiching tool 3 so that the passage division main body 20 can be connected to the bathtub sandwiching tool 3.
[0020]
Inside the locking wall portion 20d, a partition wall 19i is provided at a predetermined interval and has the same shape as the passages 19d and 19f formed on the inner surface of the passage dividing member 19 and the openings 19c and 19g. An opening is formed. In addition, about each channel | path, opening, etc. of the channel | path division | segmentation main body 20, the same code | symbol as each channel | path, opening, etc. of the channel | segmentation member 19 is attached | subjected, and description is abbreviate | omitted.
[0021]
By engaging the inner surface of the passage dividing member 19 with the inner surface of the passage dividing body 20, the first passage 19d, the second passage 19f, the first external opening 19c, and the second external opening 19g of the hot water passage dividing tool 4 are formed. Composed. The first external opening 19c and the second external opening 19g serve as a hot water discharge port or a hot water return port.
[0022]
Next, as shown in FIGS. 7 to 11, the filter cap 5 includes a filter cover 5a formed of a metal member, a cap body 5b formed of a synthetic resin, a filter member 5c, and two external opening filters 5d. And is composed of.
[0023]
The filter cover 5a is attached so as to cover the outer surface 5e and the outer peripheral surface 5f of the cap body 5b. The filter cap 5 is formed with a flat part 20a on the outer periphery and an opening on the lower end 5i side so that it can be inserted into the hot water supply passage dividing tool 4 from one direction (flat part). . An opening is also formed on the inner surface 5h side. Thus, a rectangular hole 5e is formed at the position where the first external opening 19c and the second external opening 19g of the hot water supply passage dividing tool 4 are positioned near the left and right lower ends of the outer peripheral surface portion 5j. A filter 5d is detachably provided in each hole 5k.
[0024]
In the hot water circulation connector for a bathtub according to the present invention (see FIG. 1) as described above, the flange 8 of the bathtub mounting bracket 2 is brought into contact with the outer surface of the side wall C in which the through hole B of the bathtub A is formed. At the same time, the screw groove 14 of the tubular body portion 15 of the bathtub sandwiching tool 3 is screwed into the screw groove 9 of the bathtub fitting 2 from the inner surface side of the side wall C via the packing 2a.
[0025]
Next, the inner surface of the passage dividing member 19 is fitted to the inner surface of the passage dividing main body 20 to form the hot water supply passage dividing tool 4, and the cylindrical portion 19a of the passage dividing member 19 of the hot water passage dividing tool 4 is attached to the bathtub. It passes through the passage 18 of the sandwiching tool 3 and is fitted into the cylindrical body 10 of the bathtub mounting bracket 2. Furthermore, the filter cap 5 is slid from the upper side of the hot water supply passage dividing tool 4 and is externally fitted to the hot water supply passage dividing tool 4.
[0026]
In this way, a forward pipe (not shown) connected to a circulation pump (not shown) on the bathtub side is connected to the connecting pipe 11 of the bathtub fitting 2 attached to the side wall B of the bathtub A, and the bathtub is attached. Connect the return pipe connected to the circulation pump (not shown) on the side of the bath to the connection pipe 12 of the metal fitting 2, and fill the water in the bathtub and operate the circulation pump to circulate water (or hot water). A bath (water) is poured in a kettle (not shown).
[0027]
Hot water boiled in a bath pot (not shown) passes through the pipe for the forward path (not shown) and the connecting pipe 11 of the bathtub mounting bracket 2 from the central passage 6a of the bathtub mounting bracket 2 to the passage of the hot water supply passage divider 4. It passes through the cylindrical portion 19a of the dividing member 19, passes through the first passage 19d, and is discharged from the first external opening 19c into the bathtub through the filter 5d.
[0028]
On the other hand, the return hot water returned from the bathtub to the side of the bath (not shown) enters the second passage 19f of the hot water supply passage divider 4 from the second external opening 19g via the filter 5d, and from the second passage 19f. It enters into the outer peripheral passage 6b of the bathtub mounting bracket 2 through the passage 18 of the bathtub sandwiching tool 3, and from the outer peripheral passage 6b through the connecting pipe 12 and the return passage pipe (not shown). Back to the side.
[0029]
As described above, the hot water circulates between the inside of the bathtub and the bath tub (not shown) via the hot water supply circulation connector 1 for the bathtub.
[0030]
When the hot water in the bathtub is removed, the hot water does not completely escape from each passage of the hot water supply passage divider 4 and accumulates in the first trap passage portion 19e (see FIG. 4) and the second trap passage portion 19h. . Therefore, when the bathtub is filled again with hot water, when the circulation pump on the bath tub side is operated, the hot water accumulated in the trap passages 19e and 19h becomes the priming water and immediately enters the bath tub side. A circulation pump (not shown) can be activated.
[0031]
In addition, you may use the passage for hot water of the above-mentioned hot-water supply circulation connection tool for bathtubs, and the passage for return paths reversely. In this case, the flow of hot water on the forward path side and the return path side is reversed.
[0032]
【The invention's effect】
Thus, in the hot water circulation connection tool for bathtubs according to the first aspect of the present invention, the filter cap is formed so as to be fitted to the hot water passage dividing tool from a predetermined direction. Even in the case of fitting to any one, it is possible to fit easily and quickly by anyone without carefully matching the engagement positions of the hot water supply passage dividing tool and the filter cap as in the prior art. Therefore, it can contribute to shortening the installation construction time of the hot water supply circulation connector for bathtubs.
[0033]
Further, in the hot water circulation connector for a bathtub according to the present invention as set forth in claim 2, the first trap passage portion (or the second trap passage portion) is provided in the outward path of the hot water of the hot water passage dividing tool, and the first trap passage portion is provided in the return path. (Or the first trap passage portion) is formed, so that hot water is accumulated in the first trap passage portion and the second trap passage portion of the hot water passage dividing tool even when hot water in the bathtub is pulled out. When the bath tub side circulation pump is turned on again when the bathtub is filled with hot water, the hot water collected in each trap passage becomes the priming water and the circulation pump can be operated immediately. , You can boil the bath (water) efficiently.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a hot water supply and circulation connector for bathtubs according to the present invention.
FIG. 2 is a front view of a bathtub sandwiching tool according to the present invention.
FIG. 3 is a rear view of a passage dividing member according to the present invention.
FIG. 4 is a front view of a passage division main body according to the present invention.
FIG. 5 is a partially simplified side view of a state in which a bathtub sandwiching tool, a passage division member, and a passage division main body according to the present invention are combined.
6 is a left side view of FIG. 5. FIG.
FIG. 7 is a partially cutaway front view of a filter cap according to the present invention.
FIG. 8 is a partially cutaway bottom view of a filter cap according to the present invention.
FIG. 9 is a rear view of the filter cap according to the present invention.
FIG. 10 is a side view of a filter cap according to the present invention.
FIG. 11 is a cross-sectional view of a state in which the bathtub sandwiching tool, the passage dividing member, the passage dividing main body, and the filter cap according to the present invention are combined.
[Explanation of symbols]
1 Hot water circulation connector for bathtub,
2 Bathtub mounting bracket 3 Bathtub clamp 4 Hot water supply passage divider 5 Filter cap 6a Central passage 6b Outer peripheral passage 10 Cylindrical body 11 Connection pipe 12 Connection pipe 19c First external opening 19d First passage 19e First trap passage portion 19f Second Passage 19g Second external opening 19h Part of second trap passage 20a (flat portion)

Claims (2)

A bathtub mounting bracket that is internally divided into a central passage and an outer peripheral passage and that connects a connecting pipe that communicates with the central passage and a connecting pipe that communicates with the outer peripheral passage, and can be connected to the bathtub mounting bracket and A bathtub sandwiching tool formed inside a passage communicating with the passage, and a cylindrical portion that can be inserted into the bathtub sandwiching tool and communicated with the central passage of the bathtub mounting bracket are formed. In addition, a hot water supply passage formed by forming a passage communicating with the outer peripheral passage of the bathtub mounting bracket through the passage of the bathtub sandwiching tool at one end outer peripheral portion of the cylindrical portion, and forming a hot water discharge port and a hot water return port and divider, the bathtub hot-water supply circulating connector comprising a filter cap detachably can Rukoto to be fitted so as to cover the front and the outer peripheral surface of the hot water supply passage divider, the outer periphery of the hot water supply passage divider Part of the face The lower end of the filter cap and the lower end that is a part of the outer peripheral surface of the filter cap are formed flat, and the lower end of the filter cap is formed as an opening, and the filter cap is formed from the upper end side of the hot water supply passage divider. A hot water supply / circulation connector for bathtubs, characterized in that it can be externally fitted by sliding it from the lower end formed to the lower end side to the hot water supply passage divider .  The hot water supply passage divider has a cylindrical portion that can be inserted into the passage of the bathtub sandwiching tool and communicated with the central passage of the bathtub mounting bracket, and communicates with the cylindrical portion to form the hot water supply passage divider. The first passage is guided to the opened first external opening, and has a first trap passage portion in which hot water can stay in a part of the first passage. Further, a bathtub is sandwiched on the outer peripheral portion of the cylindrical portion. The second trap passage has a second passage communicating with the outer peripheral passage of the bathtub fitting through the passage of the tool, and has a second trap passage portion in which hot water can stay in a part of the second passage. The hot water supply / circulation connector for bathtubs according to claim 1, characterized in that the portion is guided to a second external opening opened in the hot water supply passage divider.

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