JPH0548029Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to the structure of a circulation port in a direct circulation reheating bathtub that heats water in the bathtub using a direct circulation method using a heat source device located at a remote location. It is.

[Conventional technology] Figure 3 shows the structure of a conventional circulation port.

In this figure, 01 is the bathtub wall, 02 is the circulation port mounting hole, 03 and 04 are the gaskets, 05 is the fixing metal fitting to which the suction port 08 and the discharge port 08' are attached to the rear wall 07, and 09 is the fixing metal fitting 05. internal thread 06
A fixing ring with an external thread 09' screwed into the 0
10 is a circulation tube connected to the suction port 08 and the discharge port 08' by a connecting nut 011;
12 is a cover with a hole, 013 is the discharge port 08'
An inverted L-shaped guide pipe is connected to the bathtub, and the high-temperature water from the discharge port 08' is discharged downward into the bathtub.

[Problems with the Prior Art] Since the above-mentioned circulation port is attached to the attachment hole 02 of the bathtub wall 01 from both sides using the fixing fittings 05 and the fixing ring 09, there are the following problems.

a Since the bathtub is usually placed close to the wall in a bathroom, the work of connecting the tube 010 to the suction port 08 and the discharge port 08' must be done in a narrow space inside a hole made in the bathroom wall. Workability is very poor.

b Once installed, it cannot be retightened during trial operation.

c. Even if a water leak were to occur at the connection, it would be difficult to notice, and even if it were noticed, it would be impossible to repair it unless the bathtub was removed.

The present invention has been proposed in view of these points, and is easy to construct, allows for retightening, and in the event of water leakage, repairs can be completed from within the bathtub without having to remove the bathtub. The purpose of this study is to propose a circulation port for direct circulation reheating bathtubs that allows for direct circulation.

[Means for Solving the Problems] As a means for solving the above problems, the present invention proposes a circulation port having the following configuration.

A fixing fitting is provided with nozzle holes for connecting a tube for hot water circulation at the top and bottom positions of the front, and an external screw for fixing is provided on the outer peripheral surface of the rear side, and an internal thread that is screwed into the external thread of the fixing fitting is provided. a fixed ring;
A suction nozzle and a discharge nozzle each having an external thread that can be freely screwed into the nozzle hole of the fixing metal fitting and having a tube fitting opening formed at the rear end, and a plate having a suction opening inserted into the suction nozzle at the rear thereof. a shaped separator, which can be fitted into the fixing fitting from above the separator, has multiple inflow holes on the front side, and has an outflow port formed in the lower part at the rear where the separator is located. A circulation port in a direct circulation reheating bathtub consisting of a cover and a cover.

[Function] For the above circulation port, pull out the circulation tube from the hole in the bathroom wall, first pass it through the fixing ring, then pass it through the installation hole of the next bathtub, then pull it out through the nozzle hole of the fixing bracket, and then fix it. Insert the metal fitting into the mounting hole of the bathtub wall from the inside, and screw the fixing ring into the fitting from the outside of the bathtub wall to tighten it.

Next, the tips of the tubes are inserted into the tube fitting openings of the suction nozzle and the discharge nozzle, respectively, and then each nozzle is tightened and fixed within the nozzle hole of the fixing fitting.

Then, the separator is attached by fitting the suction port of the separator into the suction nozzle, and the cover is placed over the front end of the fixing fitting from the front side to complete the attachment.

The hot water heated by the heating source flows into the bathtub through the tube, the discharge nozzle, and the outlet provided at the bottom of the cover, while the water in the bathtub flows through the inflow hole of the cover, the suction port of the separator, and the suction nozzle. into the tube and reach the heating source.

[Embodiment and its operation] FIG. 1 shows an embodiment of the present invention. Reference numeral 1 indicates a fixing metal fitting, and this fixing metal fitting 1 has nozzle holes 3 and 4 for connecting a tube for hot water circulation at the upper and lower positions of the front side 2, and has an external screw 6 for fixing on the outer peripheral surface of the rear side 5. This is the configuration provided.

Reference numeral 7 designates a fixing ring having a collar 9 formed at its front end and an inner thread 8 screwed into the outer thread 6 of the fixing fitting 1 on its inner surface. 10 indicates Patsukin.

11 is a suction nozzle, and this suction nozzle 11
are an external screw 12 screwed into the nozzle hole 3 of the fixing fitting 1, a tube fitting opening 13, and a retaining ring 14.
It consists of

15 is a discharge nozzle, and this discharge nozzle 15
It consists of an external screw 16 that is screwed into the nozzle hole 4 of the fixture 1, a chimney fitting opening 17, and a retaining ring 18.

Reference numeral 19 denotes a front presser ring provided with an internal thread 20 that is screwed into a thread 1a provided on the outer periphery of the front side of the fixing ring 1.

Reference numeral 21 is a rubber separator, and a suction port 22 that fits into the suction nozzle 11 is formed at the upper rear surface of the separator 21.

A cover 23 has a large number of inflow holes 24 on the front side thereof, and an outflow port 25 on the rear lower part thereof.

FIG. 2 shows the state in which the circulation port is attached to the attachment hole 27 of the bathtub 26. First, the tubes 28, 28' are passed through the fixing ring 7 outside the bathtub 26 and pulled out into the bathtub 26.

Next, the fitting openings 13 and 17 of the suction nozzle 11 and the discharge nozzle 15 with the presser rings 14 and 18 are inserted into the tips of the tubes 28 and 28', and the nozzles 11 and 15 are inserted into the nozzle holes 3 and 4, respectively. tighten.
Next, attach the front fixing ring 19 to the outer screw 1 of the fixing bracket 1.
a, then tighten the suction port 22 of the separator 21.
is fitted into the suction nozzle 11. At this time, an outflow space 30 is formed between the inside of the separator 21 and the front of the fixture 1.

Next, cover 23 is placed on the front side (fixing ring 19) of fixing fitting 1 from outside of separator 21,
An inflow space 31 is formed between the inner separators 21 of the cover 23 and separated from the inflow port 22 side. The installation of the circulation port is completed as described above, and the water in the bathtub 26 flows into the cover 23 (inflow space 31) from the inflow hole 24 of the cover 23 as shown by arrow a, is sucked into the suction nozzle 11, and is sucked into the tube. 28 to a heater (not shown) for heating. The heated hot water flows out from the tube 28' through the discharge nozzle 15, the outflow space 30, and the outflow port 25 into the bathtub 26 as shown by arrow b.

[Effects of the present invention] As described above, in the circulation port according to the present invention, the tube is drawn into the bathtub, the fixing fitting is also inserted into the installation opening from inside the bathtub, and the suction and discharge nozzles are connected from the front side of the fixing fitting. I used this to tighten the tube to the fixing metal fittings.

As a result, all the work required outside the bathtub is to tighten the fixing ring for fixing the fixing metal fittings, and all subsequent work can be done inside the bathtub, greatly improving work efficiency.

Next, the tube is tightened at the inside of the bathtub, so even if water leaks at this tightening point, it will flow into the bathtub, so there is no need to worry about staining the walls, and if water leaks, etc. There is no need to worry as you can immediately retighten each nozzle.

Next, we installed a separator inside the cover to separate the suction side and the discharge side, so there is no need to worry about short passes, and the hot water flows out into the outflow space inside the separator and then flows into the bathtub through the outflow port of the cover. Because it flows out, there is no need to worry about getting burned by hot water being directly discharged.

[Brief explanation of drawings]

FIG. 1 is an exploded view of the circulation port according to the present invention, FIG. 2 is a sectional view of the circulation port installed in a bathtub, and FIG. 3 is an explanatory diagram of a conventional example. 1...Fixing metal fittings, 3, 4...Nozzle hole, 7...
Fixed ring, 11... Suction nozzle, 15... Discharge nozzle, 21... Separator, 23... Cover,
28, 28'...Tube.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A fixing bracket having nozzle holes for connecting a tube for hot water circulation at the top and bottom positions on the front side and an external screw for fixing on the outer peripheral surface of the rear side, and the outside of the fixing bracket. a fixing ring provided with an internal thread that engages with the screw; a suction nozzle and a discharge nozzle including an external thread that can be freely engaged with the nozzle hole of the fixing metal fitting, and a tube fitting opening formed at the rear end; A dish-shaped separator with a suction port formed at the rear to be inserted into the suction nozzle; a plate-shaped separator that can be fitted to the fixing fitting from the front side of the separator, and has multiple inflow holes on the front side; A circulation port in a direct circulation reheating bathtub comprising: a cover having an outlet formed at the rear where the separator is located; (2) The circulation port in a direct circulation reheating bathtub according to claim 1, comprising an external thread provided on the outer periphery of the front side of the fixing fitting and a retaining ring screwed onto the external thread.