JPH03218717A - Bathtub base for draining - Google Patents

Abstract

PURPOSE:To simplify the structure of a bathtub and to improve the efficiency of washing and drain by using a draining base arranged on the bottom part of the bathtub to connect a supplying circuit. CONSTITUTION:In a supply chamber 3b in a main body part 3, a supply circuit connecting part J1 is provided. Accordingly, by using this supply circuit connecting part J1, a feed hot water piping and a washing circuit, etc., can be connected. In the case the feed hot water piping is connected to this supply circuit connecting part J1, hot water from this feed hot water piping reaches the inside of a bathtub from inside of the main body part 3 through the supply circuit connecting part J1. On the other hand, to a drain chamber 3a, a drain circuit connecting part J2 is provided. By connecting a drain circuit thereto, the drain circuit communicates with the inside of the bathtub. At the time of draining, the drain circuit is opened. The inside of the drain chamber 3a communicates with the inside of the bathtub, and hot water in the bathtub is drained from the drain circuit. In such a case as the supply circuit is used as the washing circuit, since the drain chamber 3a is positioned in the outside periphery of the supply chamber 3b, washing water which reaches the inside of the bathtub flows smoothly to the drain chamber 3a.

Description

[Detailed Description of the Invention] [Field of Application and Summary of the Invention] The present invention relates to a drain cap for a bathtub. Conventionally, this drain cap was used exclusively as a drainage function part, but it can be used for hot water supply or circulation. By also functioning as a heating piping connection, the structure of the bathtub wall is simplified.

[Prior art and its problems] The drain fitting provided at the bottom of a conventional bathtub is only configured to correspond to a drain plug, and is not suitable for so-called dry bath devices that supply hot water directly into the bathtub, A circulating heating bath device that reheats the hot water in the bathtub to a desired temperature by circulating heat, and a bath device that increases the temperature of the water in the bathtub by supplying high-temperature hot water from a water heater to the bathtub. In order to connect the bathtub to the bathtub, a ferrule for connecting to a hot water supply circuit was provided separately from the ferrule for draining water.

Therefore, in order to create a bathtub to which these bath devices can be connected, it is necessary to arrange at least one cap for connecting a supply circuit for supplying water or hot water on the side wall of the bathtub, in addition to the drain cap. Post-processing after manufacturing the bathtub was troublesome.

The present invention has been made in view of the above problems, and allows the above-mentioned supply circuit to be connected using a drain cap disposed at the bottom of the bathtub, and also connects this supply circuit to a cleaning water port. The challenge is to improve drainage efficiency when

*《Regarding Claim 1》 [Technical Means] The technical means of the present invention taken to solve the above problem is to provide a bottomed cylindrical body which opens upward and whose open end is attached to the bottom of the bathtub. The interior of the main body (3) is divided by a partition (4) into an annular drainage chamber (3a) and a supply chamber (3b) surrounded by this drainage chamber, and the upper ends of the two chambers are both opened into the bathtub. , a drainage circuit connection part (J2) is provided in the drainage chamber (3a), and a supply circuit connection part (J2) is provided in the supply chamber (3b).
2).

[Effect] The above technical means of the present invention operates as follows.

Since the supply chamber (3b) in the main body part (3) has a supply circuit connection part (J1), this supply circuit connection part (J1)
Can be used to connect hot water supply piping, cleaning circuits, etc.

Therefore, when a hot water supply pipe is connected to this supply circuit connection part (Jl), hot water from this hot water supply pipe reaches the bathtub from inside the main body part (3) via the supply circuit connection part (J2).

When this hot water supply piping is a hot water supply piping for a hot water bath device, hot water can be filled via this supply circuit connection part (Jl), and reheating (raising the temperature of the hot water in the bathtub) is also possible.

On the other hand, since there is a drainage circuit connection part (J2) in the drainage chamber (3a), by connecting the drainage circuit to this,
The drain circuit communicates with the inside of the bathtub. When draining water, open the drain circuit by appropriate operation. Since the inside of the drainage chamber (3a) is open at the top and communicates with the inside of the bathtub, hot water in the bathtub is thereby drained from the drainage circuit.

When the supply circuit is used as a cleaning circuit, the supply chamber (3b)
The water is drained while discharging the wash water into the bathtub, but since the drain chamber (3a) is located on the outer periphery of the supply chamber (3b), the wash water that reaches the bathtub is smoothly drained into the drain chamber (3a).
It will flow to

In addition, depending on the case, it is also possible to branch a return circuit from the drainage circuit and connect it to the circulation heating device. In this case, the supply circuit and a part of the drainage circuit and the feedback circuit are used to It is also possible to circulate the heating inside the bathtub.

[effect] Since the present invention has the above configuration, it has the following unique effects.

Since the supply circuit can be connected while the drainage function is still provided, there is no need to prepare a separate cap for hot water supply piping when connecting to a bath equipment, which simplifies the structure of the bathtub. Furthermore, when the supply circuit is a cleaning circuit, the cleaning water that has reached almost the entire area of the bathtub from the bottom of the bathtub flows smoothly into the drain chamber (3a), thereby improving the efficiency of cleaning and draining.

*<Regarding the claims 2> The invention of claim 2 solves the same problem as the invention of claim 1 above, and also solves the problem by solving the problem that the drain groove (M
) allows for easy drainage by manual operation.

The means for this purpose is to connect the bottom wall of the r supply chamber (3b) to a drainage groove CM.
), an auxiliary drain port (33) is provided in the bottom wall of the bathroom, and this auxiliary drain port (33) is closed with a stopper (32) that can be opened and closed from inside the bathroom.

According to this technical means, it is possible to perform both a drainage operation using a drainage circuit and a manual operation of directly draining water from the supply chamber (3b) into the drain (M), in the case of the latter drainage. The water can be drained by operating the stopper (32) of the supply chamber (3b) located in the center of the mouthpiece.

Therefore, manual drainage becomes easy, and the structure of the base that enables this manual drainage becomes simple.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.

The first embodiment shown in Figures 1 to 3 allows the inside of the bathtub (B) to be connected to a forced circulation heating type bath device, and also allows direct manual drainage of water into the drain groove below the bathtub. It is a drainage cap with a main body (3) as a bottomed cylindrical body with an open top, and the inside thereof is a cylindrical compartment (3).
4》 It is divided into a central supply chamber (3b) and an annular drainage chamber (3a) surrounding it. and,
This supply chamber (3b) is formed with a cylindrical auxiliary drain port <<33>> into which a plug body (32) is inserted, and this plug body <<33>> is formed.
A dispersion plate (36) is attached to the upper end of the shaft (37) connected to
is provided, and the dispersion plate (36) faces the collar (4l) at the upper end of the partition (4) with a certain gap therebetween. In addition, the gap between the flange ``4l'' of the partition body ``4'' and the above-mentioned dispersion plate (3B) is determined by adjusting the shaft portion ( The length of 37) and the diameter of the dispersion plate <<36>> are set to predetermined values.

The height of the flange (4l) is set to approximately match the mounting flange (F) at the upper end of the main body (3), and the height of the flange (4l) is set to approximately match the mounting flange (F) at the upper end of the main body (3). 3) A sufficient space If! (G) is provided between the main body part (3) and the upper end open part.A drainage circuit connection part (J2) is provided at the bottom of the drainage chamber (3a) in the main body part (3). and connect this drain circuit connection (J2
>> is screwed with a cap nut (N).

At the bottom of the main body (3), near the auxiliary drain port (33),
A supply circuit connection part (Jl) is provided, and this supply circuit connection part (J1) is bent into an L shape, and a cap nut (N) is similarly screwed into the tip end of the supply circuit connection part (J1).

In this device, the piping connected to the drain circuit connection part (J2) is configured to serve as both a return circuit (2l) and a drain circuit, and the return circuit runs from the bathtub (B) to the bath device (1). A discharge pipe (26) branched from the switching valve (25) of (21) hangs down from the bottom wall of the bath device (1) to the drain (M).

In order to connect the bath equipment and the bathtub using this drainage cap, as shown in Fig. 2, connect the heat exchanger (11) for circulation heating and the bathtub (B), and connect the circulation pump to the bathtub (B). (P) is inserted into the feedback circuit (2l) of the circulation circuit (2) using the cap nut (N).
Connect the other supply circuit (J2) to the drain circuit connection (J2) using
22) are similarly connected to the supply circuit connection parts (Jl) connected to the bottom of the main body part (3) using cap nuts (N). As a result, the heat exchanger (1l)φ supply circuit (22)-
>Supply circuit connection part (Jl) = 6 bathtubs (B) ->
Drainage circuit connection part (J2) Feedback circuit (2l) Robonbu (
P) A circulation circuit of the φ heat exchanger (11) will be constructed. In addition, in this example, the heat exchanger (11) and the bomb (P
), there is a feedback circuit (2l) in the bathing device (1)
A switching valve (25) is arranged downstream of the pump (P),
A discharge pipe (26) branched from the switching valve (25) hangs down from the bottom wall of the bath device (1) to the drain (M).

Therefore, a part of the feedback circuit functions as a drainage circuit.

In the above embodiment, when the inside of the bathtub (B) is circulated and heated, the heat exchanger (11) and the pump (P) are in operation, and the heat exchanger (11) The hot water in the bathtub (B) is heated and heated by this heat exchanger (1 liter) and transferred to the supply circuit (22).
The hot water is discharged into the bathtub (B) via the supply circuit connection part (J, >>. At this time, the collar part (4l) functions as a dispersion plate, and the discharged hot water is once dispersed in the horizontal direction. bath m
(B) Climb inside. Therefore, in the reheating state, the high-temperature discharged hot water is efficiently dispersed from the bottom of the bathtub (B) to the upper area, and is reliably mixed with the hot water in the bathtub.

Next, two methods can be adopted to drain the hot water in the bathtub (B), one of which is to connect the circuit of the switching valve (25) in the bath device (1) to the bomb (P). The pump (P) is brought into operation by switching to a mode in which it communicates with the discharge pipe (26). Then, the hot water in the bathtub (B) that has flowed into the main body part (3) flows through the drain circuit connection part (J2) -> bomb (P), selector valve (25), discharge pipe (26), and drain groove (M). ). Note that this operating section can normally be operated by a control panel serving as a remote control section of the bath device (1), and in this embodiment, a control circuit as shown in FIG. 3 is incorporated. Therefore, the drainage operation section (
28), the switching valve (25) switches to a predetermined communication state and the pump (P) becomes operational at the same time, and when the drainage progresses and is completed, this return route (22) is operated.
) The operation of the bomb (P) is stopped by the output of the water flow switch (27) installed inside the cylinder. In the case of this drainage operation, the drainage is automatically completed by operating the drainage operation section (28), and the operation of the bomb (P) is automatically stopped when the drainage is completed. The next drainage method is to drain water manually, by pulling the suspension fitting (38) provided at the center of the distribution plate (36) and separating the distribution plate (36) and the drainage plug (32). In this method, the auxiliary drain port (33) is opened by pulling out the bathtub as a whole, and in this case, water is drained directly from the auxiliary drain port (33) to the drain groove (M) below the bathtub.

Furthermore, in the illustrated embodiment, a heat exchanger (12) for hot water supply is also built into the bath device (1), and one side of this hot water supply circuit is connected from the supply circuit (22) of the circulation circuit (2) to the bathtub (1). B)
It is possible to supply hot water inside the building. Therefore, hot water can be supplied from the supply circuit connection part (J1) to the bathtub (B) even during so-called filling.

Further, in the above embodiment, a bath device of a type that circulates and heats the inside of the bathtub (B) has been described, but it is also possible to use this as a base of a high-temperature hot water type water heater.

In this case, as shown in FIG. Device(
The discharge pipe (2) is built into 1) and has an on-off valve (251) inserted.
6). A bomb (P) for drainage is inserted into this discharge pipe (26), and the downstream end of the discharge pipe (26) is made to face the drainage groove (M). Both the bomb (P) and the on-off valve (251) are connected to the drain operation section (
When the bomb (P) is put into the operating state by the drain operation section (28) and the on-off valve (251) is opened, the discharge pipe (
26).

Incidentally, the same configuration as in the first embodiment can be adopted for the device for automatically stopping the drainage operation when the drainage is completed. Further, depending on the arrangement of the discharge pipe (26), the pump (P) is not necessarily required. In other words, it can be a natural drainage type.

In the third embodiment shown in FIG. 5, when draining the hot water in the bathtub (B), the inside of the bathtub can be cleaned immediately before or during the draining process. The structure is such that the stage of the process is detected by a water level sensor (S), and this water level sensor (S) is arranged at the bottom of the drain chamber (3a) of the main body (3). .

The flange (4l) at the upper end of the partition body (4) is a tapered surface that is inclined so that the tip faces upward, and the peripheral edge of the dispersion plate (36) also has a certain gap with the tabered surface. It has tapered surfaces facing each other.

Supply circuit connection part (JI) to which the supply circuit (22) is connected
) and the drainage circuit connection part (J2) to which the feedback circuit (21) is connected are both constructed in the same manner as in the first embodiment, but
In this embodiment, the supply circuit (22) side is made to function as a water supply circuit or a hot water supply circuit, and a wash water supply circuit (221) is connected to this supply circuit (22).
A solenoid valve (
V+) (V2) is inserted. Here, one solenoid valve (v1) is opened during the cleaning operation, and the other solenoid valve (v1) is opened during the cleaning operation.
v2) is the one that is closed.

These electromagnetic valves, the pump (P), and the on-off valve (251) inserted into the discharge pipe (26) are controlled by the electric circuit shown in the same figure, and when the drain operation section is operated, this switches the valve. The excitation coil of the valve (251) and the pump (P) are brought into conduction, and the drainage operation proceeds. Then, whether or not this drainage operation is completed is detected by the water flow switch (27) as in the first embodiment.

As drainage progresses and the water level in the bathtub (B) drops to a certain level, the water level sensor (S) detects this and returns to the closed state, and a timer controls the solenoid valves (Vl) (V2). (T) becomes conductive. This allows this timer (
The output contact of T) is closed, the excitation coil of the solenoid valve becomes conductive, and cleaning water is supplied from the supply circuit (22) for a certain period of time.

At this time, since the gap between the brim (4l) and the dispersion plate (36) is a predetermined gap, the water discharged from this gap reaches the bathtub wall in the form of a shower and adheres to it. The scale and dirt that occurs are washed away and reach the supply chamber (3b). This cleaning operation ends when the set time of the timer (T) has elapsed, and at this time, the solenoid valve (Vl) returns to the closed state and the supply of water or hot water from the supply circuit (22) is stopped.

In other words, the discharge of shower-like water is stopped. still,
The solenoid valve (v2) is for preventing backflow of wash water. It is also possible to use a combination of these solenoid valves as a flow path switching valve, and in this case, the cleaning water supply circuit (221)
The switching valve may be inserted at the junction of the supply circuit (22) and the supply circuit (22).

The draining operation continues during this cleaning process, and when the draining is completed after the cleaning is completed, the bomb (P) is rendered non-conductive by the output of the water flow switch (27) and its operation is stopped. At the same time, the on-off valve (251) also returns to its closed state.

In addition, in the above embodiment, the drainage chamber (3a) and the supply chamber (
3b) are arranged concentrically, but the supply chamber is connected to the drainage chamber (3b).
It may be eccentric with respect to a), and this supply chamber (3b
) It may also be a pipe body for commonly used piping. moreover,
A plug (32) and a cylindrical auxiliary drain (3) are installed in the drain chamber (3a).
3) may be provided, and in this case, the auxiliary drain port (33) may be used as a drain circuit connection portion (J2).

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the first embodiment of the present invention, and Fig. 2 is an explanatory diagram of a bath device using this. Figure 3 is an electric circuit diagram for automatic drainage, Figure 4 is an explanatory diagram of the second embodiment, and Figure 5 is the third embodiment.
It is an explanatory diagram of an example. 3)... B)... 32)... 33)... 3a)... 3b)... 4)... J+)... J2)... Main body bathtub plug Auxiliary drain outlet Drain room Hot water supply room compartment Supply circuit connection part Drain circuit connection part

Claims (2)

[Claims] (1) A bottomed cylindrical main body (3) that is open upward and whose open end is attached to the bottom of the bathtub is divided into an annular drainage chamber (3a) by a partition (4) and a drainage chamber (3a) for this drainage. The upper ends of the two chambers are both opened into the bathtub, and the drain chamber (3a) is provided with a drainage circuit connection part (J_2), and the supply chamber (3b) is divided into a supply chamber (3b) surrounded by a chamber. Bathtub drain fitting with supply circuit connection (J_1). (2) The bottom wall of the supply chamber (3b) faces above the drain groove (M), and an auxiliary drain port (33) is provided on this bottom wall, and this auxiliary drain port (33) can be opened and closed from inside the bathroom. Possible stopper (32
2. The drain fitting for a bathtub according to claim 1, wherein the drain fitting is closed by a drain tube.