JPH0426102Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a bubble bath device having a bubble bath function and a bathtub water reheating function.

(Prior Art) Previously, the present applicant proposed a configuration in which a reheating function was simply added to a conventional bubble bath device using the piping of the bubble bath device (Utility Application No. 13290/1982). As shown in FIG. 10, this configuration includes a circulation path 5 from a water intake 2 provided in a bathtub 1 to a back nozzle 3 and a foot nozzle 4, and a circulation pump 6 and a flow path on the foot side and the back side. A check valve 9 is installed in the foot side discharge passage 8 on the downstream side of the switching valve 7, and the upstream side of the check valve 9 is connected to the inlet passage 11 of the forced circulation reheating device 10. To,
The downstream side of the check valve 9 is connected to the hot water outlet path 12. In this configuration, the bubble bath is performed by driving the circulation pump 6, which sucks air by the ejector action when bath water is ejected from the back nozzle 3 and the foot nozzle 4, and ejects a jet stream mixed with air bubbles into the bathtub 1. do. For reheating, the forced circulation type reheating device 10 is operated, and the built-in pump 10a is driven to suck the bathtub water and heat it with the heat exchanger 10b, and the heated water is sent to the bathtub 1 via the foot side discharge path 8. Additional firing is carried out by supplying the fuel to the Incidentally, during reheating, the circulation pump 6 may be in a stopped state or in a weakly operating state.

(Problems to be solved by the invention) However, the conventional example described above has the following problems.
That is, since the jet direction during a bubble bath is arbitrarily selected between the dorsal side and the foot side by the switching valve 7, if the bather leaves the switching valve 7 in the foot side closed position and performs the reheating operation. Then, the flow rate of water entering the forced circulation type reheating device 10 is not ensured, and reheating becomes impossible.

The present invention thus solves the problems of the prior art and provides a bubble bath device that can perform reheating operation regardless of the switching state of the switching valve.

(Means for solving the problem) In order to achieve the above object, the bubble bath device in the first invention includes a circulation pump and a circulation path from the water intake provided in the bathtub to the back nozzle and the foot nozzle. In a device equipped with a switching valve that switches the flow path between the back side and the foot side, a check valve in which the hot water outlet path of the forced circulation type reheating device is interposed in the foot side discharge path from the switching valve to the foot side nozzle. The inlet waterway is connected in parallel to the check valve upstream side of the foot side discharge path and to the back side discharge path.

Further, for the same purpose, in the second invention, the above-mentioned inlet water channel is connected to the upstream side of the check valve of the foot-side discharge passage, and the switching valve is provided with a bypass means that constantly communicates with the foot-side discharge passage.

Furthermore, for the same purpose, in the third invention, the above-mentioned water inlet is connected to the circulation path on the upstream side of the switching valve.

(Function) When reheating, bath water enters the forced circulation reheating device from the back side discharge path, foot side discharge path, or both discharge paths,
The heated bathtub water is sent to the bathtub via the foot-side discharge passage.

Further, in the second invention, the bath water entering the forced circulation reheating device is ensured by constantly allowing the required flow rate to flow from the bypass means of the switching valve to the foot side discharge path.

Furthermore, in the third invention, bath water enters the forced circulation reheating device from the circulation path upstream of the switching valve.

(Example) Examples of the present invention will be described below. Components having the same configuration as those shown in FIG. 10 as a conventional example are given the same reference numerals, and the explanation thereof will be omitted.

In FIGS. 1 and 2, water channels 16 and 1 are connected from the upstream side of the foot side discharge passage 8 of the switching valve 7 and the back side discharge passage 13 via check valves 14 and 15, respectively.
7 is connected to the inlet channel of the forced circulation type reheating device 10. According to this configuration, the switching valve 7 is injected with water from the water channel 17 when it is in the foot-side closed position, and from the water channel 16 when it is in the dorsal-side closed position. In addition, check valves 14, 15
By providing this, water entering from one waterway is prevented from flowing out to the other waterway, and water is reliably entered into the forced circulation type reheating device 10. In addition, as shown in Figure 2, there is a solenoid valve 1 that opens when water enters from both waterways and is reheated.
8, the bubble bath effect can be enhanced when the bubble bath is used exclusively.

Next, in FIGS. 3 to 5, water enters the forced circulation reheating device 10 only from the foot side discharge path 8 through the water channel 1.
9, and a bypass means 20 is provided which always communicates the switching valve 7a with the foot-side discharge passage 8 as shown in FIG. The bypass means 20 may be one in which a leak hole 22 is formed in the valve body 21, or one in which a bypass passage 23 is provided as shown by a broken line. According to this configuration, even when the switching valve 7 is in the foot-side closed position, the necessary flow rate is ensured in the foot-side discharge passage 8 by the bypass means 20. In the example shown in FIG. 3, a check valve 24 is provided in the back discharge passage 13, and in the example shown in FIG. 5, a filter 25 is provided.
The provision of the filter 25 prevents the occurrence of backflow from the back discharge passage 13 during reheating, and the provision of the filter 25 traps the debris in the backflow water, and also prevents debris from flowing into the forced circulation reheating device 10 during reheating. This is to prevent the intrusion of (Normally, a filter is provided at the water intake 2.) Furthermore, in the configuration shown in FIGS. 6 to 9, water enters the forced circulation reheating device 10 from the circulation path 5 upstream of the switching valve 7. 26. Therefore, water is poured in regardless of the switching state of the switching valve 7, and additional firing becomes possible.

In the one shown in Figure 7, forced circulation type reheating device 1
A solenoid valve 28 that opens during the reheating operation is provided in the water channel 27 connected to the hot water exit path 0, and in this example, even if the switching valve 7 is in the foot-side closed state when the reheating is stopped, the reheating device There is no jet water flowing into the bathtub through 10.

The one shown in FIG. 8 has a check valve 24 in the back discharge passage 13, and the one shown in FIG.
5 is provided, but both of these examples have the effect of preventing dirt from entering the reheating device 10 due to the backflow of bath water from the back discharge passage 13 during reheating operation. .

In FIGS. 8 and 9, a filtration backwash path 29 is provided in parallel with the circulation path 5, so that bath water can be filtered simultaneously with the bubble bath. That is, 32 is a filter tank, 30 and 31 are three-way valves, and when the circulation pump 6 is driven, bath water is filtered from the discharge side of the circulation pump 6 through the three-way valve 30 and the filter tank 32, and the filtered bath water is passed through the three-way valve. 31 and is sucked into the circulation pump 6. Also, backwashing of the filtration tank 32 is performed using three-way valves 30, 3.
1, the bathtub water flows backward through the filtration tank 32 from the discharge side of the circulation pump 6 through the three-way valve 31.
Water is drained from the three-way valve 30 to a drainage channel 33. Nao 34
is a water level switch, which enables the circulation pump 6 to be driven only when the water pressure is detected by the water level switch 34. Therefore, in order to prevent non-detection of the water level switch 34 due to the suction action of the built-in pump during reheating operation, it is possible to drive the circulation pump 6. If the stop valve 35 is provided, bubble bath operation is possible even during reheating operation.

(Effects of the invention) Since the invention is configured as described above,
This produces the following effects.

The bubble bath device according to claim 1 is safe because the hot water is ejected from the foot side during reheating;
Further, additional heating is possible regardless of the switching state of the switching valve.

In addition to the same effects as in the first aspect, the bubble bath device according to the second aspect eliminates the need for a water channel connected from the back side discharge passage, and the piping configuration is simplified compared to the bubble bath device according to the first aspect.

In the bubble bath device according to claim 3, in addition to the same effects as in claim 2, there is no need to bypass the switching valve, so in addition to simplifying the structure of the switching valve, it is possible to This increases the jet force and improves the bubble bath effect.

[Brief explanation of drawings]

Figure 1 is an overall configuration diagram showing an embodiment of the first invention, Figure 2 is an overall configuration diagram showing another embodiment of the first invention, and Figure 3 is an embodiment of the second invention. 4 is a cross-sectional view of the main parts, FIG. 5 is an overall configuration diagram showing another embodiment of the second invention, and FIG. 6 is an overall diagram showing an embodiment of the third invention. Configuration diagram, 7th
9 to 9 are overall configuration diagrams showing other embodiments of the third invention, and FIG. 10 is an overall configuration diagram showing a conventional example. 1...Bathtub, 2...Water intake, 3...Dorsal nozzle, 4...Leg side nozzle, 5...Circulation path, 6...Circulation pump, 7...Switching valve, 8...Leg side discharge path , 9
...Check valve, 10...Forced circulation reheating device, 13
...Dorsal discharge passage, 20...Bypass means.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A bathtub equipped with a circulation pump and a switching valve for switching the flow path between the back side and the foot side nozzles in the circulation path from the water intake to the back side nozzle and the foot side nozzle. , the hot water outlet path of the forced circulation reheating device is connected to the downstream side of a check valve interposed in the foot side discharge path from the switching valve to the foot side nozzle, and the inlet water path is connected to the opposite side of the foot side discharge path. A bubble bath device characterized in that a stop valve is connected in parallel to an upstream side and a back side discharge path. 2. For bathtubs equipped with a circulation pump and a switching valve that switches the flow path between the back side and foot side nozzles from the water intake port to the back side nozzle and foot side nozzle, the forced circulation reheating device is installed. Connecting the hot water outlet path to the downstream side of a check valve interposed in the foot side discharge path from the switching valve to the foot side nozzle, and connecting the inlet water path to the upstream side of the check valve of the foot side discharge path, A bubble bath device characterized in that the switching valve is provided with a bypass means that constantly communicates with the foot side discharge passage. 3 In bathtubs equipped with a circulation path from the water intake to the back nozzle and foot nozzle, which is equipped with a circulation pump and a switching valve that switches the flow path between the back and foot nozzles, the forced circulation reheating device is installed. The hot water outlet path is connected to the downstream side of a check valve interposed in the foot side discharge path from the switching valve to the foot side nozzle, and the inlet water path is connected to the circulation path upstream of the switching valve. A bubble bath device.