JP3204038B2 - Bathtub connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub connecting apparatus for connecting a bathtub with a forced circulation pipe for forcibly circulating bathwater in a bathtub through a heater or the like outside the bathtub with a pump.

[0002]

2. Description of the Related Art Conventionally, this type of bathtub connecting device for forced circulation piping has been proposed to improve the workability of piping and to provide a bathroom connecting device for forced circulation piping which is excellent in usability. A bathtub fitting that is fixed watertight and has a pipe connection port for connecting to a forced circulation pipe consisting of a forward pipe that flows out of the bathtub and a return pipe that flows into the bathtub, and a pipe connection port and an opening in the bathtub It had a water passage which circulates bath water independently between the clubs (Japanese Patent Application No. 5-68539).

[0003]

However, in the above conventional apparatus, when the flow path flowing into and out of the bathtub changes due to the clogged state of the filter such as dust and hair, the flow becomes substantially octagonal with respect to the bottom of the bathtub. The outflow / inflow tub water with the channel and the lower outlet flow path is mixed, and the temperature of the flowing water in the return pipe that takes the tub water out of the tub becomes higher than the average temperature in the tub, and furthermore, the temperature of the flowing water flowing into the heater And the heater having the automatic boiling stop function stops before the hot water in the bathtub rises. When the connection was reversed, the same result as described above was obtained.

[0004] Therefore, the present invention is to prevent the flowing water returned to the bathtub from flowing into the heater while the running water temperature is high without circulating in the bathtub, and the heater having the automatic boiling stop function is not stopped. Provided is an improved forced circulation piping bathtub connecting device.

[0005]

In order to achieve the above object, a bathtub connecting device of the present invention is mounted on a mounting opening of a bathtub.
Fixed case and attached inside the bathtub of this fixed case
A bathtub fitting having a suction port cap,
A filter holder that fits into the suction port cap of the tank fitting
The bathtub fitting has an access pipe and the inside of the bathtub.
The first water channel and the return pipe to communicate with the inside of the bathtub
A second water channel to circulate bath water
In addition, the bathtub fitting is provided with first and second water passages on its outer peripheral side wall.
Road openings are provided, and the filter
Outer peripheral side wall facing at least each of the openings of the holding case
A filter is provided in the part, and in front of the inlet cap
Each opening between the surface and the front surface of the filter holding case
Having a water communication chamber communicating with the
Fitting of the filter holding case of each opening near the cap
Is provided with a notch for a bypass path .

The second means of the present invention is characterized in that the opening of the inlet cap through which the bathtub water flows in and out is formed as a projection for preventing mixing of the bathtub water flowing in and out of the opening. A side wall and a front outer peripheral wall for distinguishing the side from the front are provided between the sections.

[0007]

According to the present invention , a filter for a bypass passage is provided at a part of a filter holding case mounting fitting portion near an opening of a suction port cap .
By providing the notches, dust, immediately after and from the flow opening of the water passing portion by the filter clogging caused by hairs or the like bath water, the inlet cap front and Phil
Flows to the water chamber located between the
To prevent short circuit by changing
come. Therefore, it is possible to raise boiling to the set temperature without heater with automatic Wakiagari stop function stops
You .

The second means is provided with a side wall and a front outer peripheral wall for distinguishing between the side and the front face between the openings of the suction port cap, so that the front face of the suction port cap and the filter holding member are provided.
The bathtub water that flows into the water passage room between the front of the case can be almost completely separated , the short circuit of the bathtub water is eliminated, and the heater with the automatic boiling stop function stops. to raise boiling up without a set temperature
Becomes possible .

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a bathtub connecting device according to an embodiment of the present invention.

FIG. 1 is a longitudinal sectional view of a bathtub connecting device, FIG. 2 is a front sectional view taken along the line XY of FIG. 1, and FIG. 3 is a bottom view of FIG.

In the figure, a bottom surface 1a is formed at a lower portion of a bathtub side wall 1.
The rear case 4 is attached to the bathtub side wall 1 through a watertight packing 3 for preventing water leakage.
The fixing case 5 is fastened with a screw portion 6 from the outside, and fixed so as to sandwich the bathtub side wall from the inside. First, a watertight O-ring 7 is attached to the groove 4a of the rear case 4 and a watertight O-ring 9 is attached to a rear outer peripheral surface 10a of the suction port cap 10. insert. Then, the front outer peripheral end 10b is brought into contact with the outer periphery 5a of the fixed case 5, and the suction port cap 10 is fastened and fixed to the screw hole 5c of the support projection 5b of the fixed case 5 with the screw 11a.

One of the second water passages 11 is formed by fitting the fixed case 5 and the suction port cap 10, and water flows through the water passage 12. The suction port cap 10 has a substantially C-shaped water passage 13, has an opening 15 in an outer peripheral wall 14, and communicates with another first water passage 16 formed by the suction port cap 10 and the rear case 4. I do.

The first water passage 16 also communicates with a pipe connection port 17 of the rear case 4. The side of the inlet cap 10,
A water flow chamber 21 having a side wall 19 and a front outer peripheral wall 18 as a mixing preventing protrusion on the front surface and an opening 20 between the inlet cap 10, the side wall 19, and the front outer peripheral wall 18 is formed.

The suction port cap 10 is provided with a support protrusion 10d, and the screw portion 22 is fastened to the screw hole 10c to fix the filter holding case 23. The filter holding case 23 is
Filters 23a, 23b, 23 for filtering dirt in bathtub water
c, and the filter outer peripheral wall 24 is
Abuts the outer periphery 25 of And the filter holding case 23
And water inlet chambers 26, 27, 2
Make 8. Further, the water passage 1 is provided on the outer periphery 25 near the openings 15 and 20 without passing through the filters 23a, 23b and 23c.
Notches 32 are provided as bypass passages 3 and 26 communicating with bathtub water.

Each of the filters 23a, 23b and 23c has a mesh capable of removing dirt, hair and the like of a human body which pollutes bath water.
It is fixed to the filter holding case 23 by welding or the like. The outgoing pipe 30 and the return pipe 31 serving as forced circulation pipes are connected to the pipe connection ports 29 and 17 of the rear case 4 in a watertight manner by brazing or the like. The outgoing pipe 30 and the return pipe 31 are circulated outside the bathtub through a pump for forced circulation and a heater for additional cooking (not shown) to remove dirt and to perform additional cooking when cooling the hot water.

Based on the above configuration, the bathtub water is circulated while being circulated by circulating a circulating pump, and after the water is cooled and heated, the bathtub water is passed through the filter 23b while the dirt is being filtered. The water flows into the water channel 28. These inflows pass through the water passage 13 from the opening 15 and flow out of the first water passage 16 to the going pipe 30. The bathtub water heated and heated by the heater enters the water passage 11 from the return pipe 31, enters the water passage chamber 21 from the water inlet 12, goes straight to the opening 20 and the filter 23 c facing the opening 20, and Bottom 1a
Leaks to

The high-temperature effluent, which has been heated and heated, spreads widely on the bottom surface 1a and then floats upward. The hot effluent collides with the human body from the side and does not accompany heat, and is preferable as a circulating flow of bathtub water. Efficient stirring of bathtub water eliminates unevenness of hot water temperature based on the difference between the upper and lower water levels. .

On the other hand, the upper hot water is supplied to the filters 23a and 23b.
, Flows into the water passage chambers 27 and 28, and the area where the flow and the water flowing out from the filter 23c contact and intersect can be reduced.

However, in the conventional configuration, when the filter opening 33 , that is, the filter 23ac is clogged with dust or hair due to aging, the bath water heated and heated by the heater passes through the opening 20. Filter 23c
When flowing to, water passing the filter 23c is the filter will fall flow velocity of a certain the bath water through a filter clogging state
The stagnation occurs near the room 26 .

This stagnant bathtub water is
Exists between the front surface and the front surface of the filter holding case 23.
The short circuit was formed by changing the flow into the water passage chamber 27, and further induced by the Coanda effect into the opening 15 and not circulating sufficiently in the bathtub, flowing through the water passage 13 and flowing out to the pipe 30. .

[0021] However, as shown in FIG. 3 in the present invention,
By providing the notch 32 and having the bypass passage, the filter 23c becomes clogged with the filter and is not allowed to pass.
Even if the bathtub water stagnates near the water chamber 26, as shown by the arrow in FIG.
Through the notch 32, the water 34 into the bathtub is secured,
The bathtub water near the water passage room 26 is in front of the inlet cap 10.
In the water passage chamber 27 between the front of the filter holding case 23
Spill into the bath without changing the flow. Therefore, the opening
The temperature of the bath water flowing into the part 15 is the temperature flowing into the bath.
Be more temperature bath water which can be held flowing into the heater low low, it is not possible to heater with automatic Wakiagari stop function before hot water temperature temperature in the bathtub becomes the set temperature is stopped by causing a short-circuit .

[0022] In the conventional configuration, off in the same manner as in the content
Filter 23c dust in aging, when it becomes the filter clogging state such as hair, when the bath water which has been Atsushi Nobori in the heater flows through the opening 20 to the filter 23c, Fi
Since the filter 23c is clogged with the filter, the water path of the bathtub water changes and the water flows as shown in the water flow direction 35 in FIG.
Is in, will be mixed with bath water in the water passing chamber 27, its
The water was sucked into the opening 15 and guided through the water passage 13 without being circulated in the bathtub to flow out to the pipe 30.

However, in the present invention, as shown in FIG. 2, since the front outer peripheral wall 18 and the side wall 19 are provided on the front and side surfaces of the suction port cap 10 as projections for preventing mixing, the temperature is raised by heating with a heater. When the bathtub water flows to the filter 23c through the opening 20, the outflow to the other is suppressed by the inlet cap 10, the side wall 19, and the front outer peripheral wall 18, that is, the bath water is mixed into the water passage chambers 27 and 28 and opened. Inhaled by part 15
No more. Therefore, the bathtub flowing into the opening 15
The temperature of the water becomes lower than the temperature in the bathtub, and as described above, it is possible to prevent the heater having the automatic boiling stop function from stopping before the hot water temperature in the bathtub reaches the set temperature.

Also, when the outgoing pipe 30 and the return pipe 31 are reversely connected to the pipe connection ports 17 and 29, bathtub water flowing out of the opening 15 into the bathtub is supplied to the opening 20 by the Koander effect. Induction is not induced, and the same result as above is obtained.

[0025]

As is clear from the above description, in the bathtub connecting apparatus of the present invention, the bathtub water immediately after flowing out and in through the opening of the water passage section due to filter clogging caused by dust, hair or the like. It is possible to prevent a short circuit caused by changing the temperature, and even if a heater having an automatic boiling stop function is used, the heater can be heated to a set temperature without stopping.

According to a second aspect of the present invention, by providing a side wall and a front outer peripheral wall for distinguishing the side and front from each other between the openings of the suction cap, bathtub water flowing into and out of the opening can be almost completely removed. Since it can be separated, there is no short circuit between the openings, and the heater having the automatic boiling stop function can be heated to the set temperature without stopping.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a bathtub connecting device according to one embodiment of the present invention.

FIG. 2 is a sectional view taken along line XY of FIG. 1;

FIG. 3 is a bottom view in a state where a filter holding case is attached to FIG. 2;

[Explanation of symbols]

 2 Mounting opening 4 Rear case 5 Fixed case 10 Suction port cap 11, 13, 16 Water passage 18 Front outer peripheral wall 19 Side wall 21, 26, 27, 28 Water passage chamber 23 Filter holding case 23a, 23b, 23c Filter 32 Notch

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47K 3/00 F24H 9/12 B01D 35/00

Claims (2)

(57) [Claims] 1. A fixed case attached to a mounting opening of a bathtub.
And the suction port attached to the inside of the bathtub of this fixed case
Bathtub fitting having a cap, and inhalation of the bathtub fitting
With a filter holding case fitted to the mouth cap,
A first pipe for connecting the access pipe and the inside of the bathtub to the bathtub fitting;
The waterway and the second waterway that connects the return pipe to the bathtub
A bathtub for circulating water, and further comprising the bathtub
The fitting has openings for the first and second water passages on its outer peripheral side wall.
Together with the filter holding case.
At least, fill the outer peripheral side wall facing each of the above openings.
And a filter and a front surface of the suction port cap.
Water flow communicating with each opening between the front surface of the holding case
And a bypass passage at the fitting portion of the filter holding case near each opening of the suction port cap .
Bathtub coupling device provided with a notch of. 2. A side wall and a side face between the openings as projections for preventing mixing of the bath water flowing out of the opening into the opening of the suction port cap through which the bath water flows in and out. 2. A front peripheral wall for distinguishing a front surface.
The bathtub connection device as described.