JPH08121863A - Device for circulating warm bath - Google Patents

Abstract

PURPOSE: To provide a circulating warm bath device wherein, at the time of restarting the operation of the device after suspension, the time and work for priming is not required and it can be easily started or restarted and, at the time of switching the operation modes, any abnormal load is not imposed on a pump, the service life can be prolonged, and the size and cost can be reduced. CONSTITUTION: Even after suspension of the operation of a warm bath device 1, since a circulating pump 11 is provided with a self-suction tank 12, it can be easily started without priming. When a flow passage change-over valve 14 is driven, the operation of the circulating pump 11 is stopped. A heater 12a is provided in the self-suction tank 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating hot bath machine in which bath water in a bathtub is pumped up, heated, purified by a filtration device, and circulated again in the bathtub as clean and appropriate hot water, and more particularly, , A technology for facilitating the start of driving.

[0002]

2. Description of the Related Art Conventionally, a hot water circulation type bath device (referred to as a circulation hot bath machine) has been provided. In this circulating hot bath machine, the bath water in the bathtub is pumped up by a circulation pump, heated to a desired temperature by a heater, and foreign matter such as dust and dirt contained in the bathwater is removed and purified by a filtering device,
Operates to return to the bathtub again (normal mode). By the way, in this type of circulating warm bath machine, when restarting the operation, if there is air in the pump case of the circulation pump, it is necessary to discharge it. In addition, by operating the flow path switching valve, the flow path is switched to perform the cleaning mode operation in which the foreign matter accumulated in the filtering device is removed and discharged by the normal mode operation to clean the filtering device. is there.

[0003]

However, in the above circulating warm bath machine, it takes time and effort to inject priming water when restarting the operation, which is inconvenient. Further, in the one in which the flow path switching valve is operated to switch the flow path to perform the cleaning mode operation, there is a problem that the flow path is blocked when the valve is switched and an abnormal load is applied to the circulation pump. It was In addition, a self-priming tank is supposed to be provided for the pump in order to facilitate restarting (not known), but since the circulating warm bath machine also has a heater tank, it is self-priming separately from the heater tank. If a suction tank is provided, the device becomes large.

The present invention has been made in order to solve the above-mentioned problems, and when the operation is restarted after the apparatus is temporarily stopped, it is easy to start and restart without the trouble of priming. In addition, it is possible to provide a circulating hot water bath machine that can achieve a long life without abnormal load being applied to the pump at the time of switching the operation mode, and can further reduce the size and cost of the device. To aim.

[0005]

In order to achieve the above-mentioned object, a circulating hot bath machine according to a first aspect of the present invention comprises a circulating pump for sucking bath water in a bath and circulating the bath water between the hot bath machine body and the bath. ,
In a circulating hot bath machine equipped with a heater for heating the bath water sucked by the circulation pump to a predetermined temperature, and a filtering device for filtering the bath water sucked by the circulation pump, the self-priming tank for the circulation pump is a main body of the warm bath machine. It is located in the inner circulation channel. According to a second aspect of the present invention, in the circulating hot bath machine according to the first aspect of the present invention, a circulation pump is provided based on a volume from an upper portion of the bath water of a pipeline for sucking the bath water in the bathtub to the suction portion of the self-priming tank The volume from the upper part of the pump case inlet to the lower part of the pump case is larger. In the circulating hot bath machine according to claim 3, in the configuration of claim 1 or 2, a hot water bath body is provided with a flow path switching valve for switching the flow path of the bath water sucked by the circulation pump, and the flow path switching is performed. The operation of the circulation pump is stopped when the valve is driven. According to a fourth aspect of the present invention, there is provided the circulating hot bath machine according to any one of the first to third aspects, wherein a heater is provided in the self-priming tank.

[0006]

According to the circulating hot water bath machine of the present invention having the above-mentioned structure, the circulating water is sucked into the bath water by the circulation pump, the bath water is heated to a predetermined temperature by the heater, and the bath water is further filtered. And then circulate between the hot bath body and the bath. Even after the operation of the warm bath machine is temporarily stopped, the circulation pump is provided with the self-priming tank, so that the circulation pump can be easily started without priming. Further, according to the circulating hot bath machine of the second aspect, at the time of starting the operation, the circulation pump does not run idle and can be reliably started. Further, according to the circulating hot water bath of the third aspect, in addition to the above operation, the operation of the circulation pump is stopped when the flow path switching valve is driven, so that an abnormal load is applied to the circulation pump when switching the valves. Will disappear. Further, according to the circulating hot bath machine of the fourth aspect, in addition to the above-mentioned action, since the heater is provided in the self-priming tank, the space can be saved as compared with the case where the heater is provided separately.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state where the circulating hot water bath according to this embodiment is installed in a bathtub. Circulating hot bath 1
The outer case 1a (hereinafter referred to as a warm bath machine) is a horizontally long horizontal type, and its lengthwise dimension is the inner wall 2b of the bathtub 2.
The width of the bathtub 2 is larger than that of the bathtub 2, and is installed on the upper edge 2a of the bathtub 2. The hot bath 1 may be installed by adsorbing a suction cup (not shown) provided at the center of the bottom surface of the outer case 1a to the upper edge 2a of the bath 2. Further, the hot water bath 1 has a suction pipe 5 having a suction port 4 for adsorbing the bath water 3 facing the bath water 2, and hot water which has been subjected to treatment such as heating and purification inside the hot water bath 1 2 is connected to a discharge pipe 7 having a discharge port 6 for circulating discharge. The suction pipe 5 and the discharge pipe 7 are extended downward from the front center position on the bottom surface of the hot bath machine 1, and the discharge port 6 is located above the suction port 4, so that the pump is discharged from the discharge port 6. Self-sufficient water makes it difficult to escape. Further, a drain pipe 17 for draining the waste water after cleaning when the cleaning operation is performed is extended in the left-right direction at the bottom rear position of the outer case 1a. The hot bath 1 is also provided with a display panel for setting temperature and the like, a switch for selecting an operation mode, an operation unit 1b having a control circuit and the like.

2, FIG. 3, and FIG. 4 are schematic configuration diagrams of the warm bath machine 1, showing the flow of bath water during normal mode operation, cleaning mode operation, and jet mode operation, respectively. Further, FIGS. 5, 6 and 7 are sectional views showing the detailed structure of the hot bath machine 1, which correspond to FIGS. 2, 3 and 4, respectively. In the warm bath machine 1, the suction pipe 5 for the bath water 3
A circulation pump 11 for pumping and circulating through the pump, a pump motor 11a for driving the circulation pump 11, a heater tank 12 having a heater 12a for heating the bath water 3 pumped up by the circulation pump 11 to a predetermined temperature, and a circulation pump 11 The filtering device 13 for filtering the bath water 3 pumped up by, the flow path switching valve 14 for switching the flow path of the pumped bath water 3 according to the operation mode, and the flow path switching valve 14 are switched and driven. A valve drive motor 15 and an automatic drain valve 16 that forms a flow path to drain the dirty water after cleaning in the cleaning mode operation are provided. When the flow path switching valve 14 is driven to switch the operation mode,
The operation of the circulation pump 11 is stopped.

A heater tank 12 arranged in the circulating water channel.
Has a function as a self-priming tank of the circulation pump 11, and will be referred to as a self-priming tank 12 hereinafter. In addition, automatic drain valve 16
The drain pipe 1 for draining the waste water after cleaning the filter device 13.
7 is connected. The filtering device 13 has a cylindrical shape extending in the lateral direction, and an inflow port 21 and an outflow port 22 are provided at one end in the lateral direction thereof. In the filtration device 13, a particulate filtration material 25 made of a porous ceramic ball or the like is housed inside a cylindrical filtration tank 24, and a hollow member 26 is rotatably supported along the vicinity of the central portion in the axial direction. One end side thereof communicates with the inflow port 21 described above, and the other end side is opened. A plurality of stirring rods 27 are integrally provided on the outer peripheral surface of the hollow member 26. The stirring rod 27 is driven to rotate together with the hollow member 26 by driving the stirring rod drive motor 28 at least in the cleaning mode. , Filtering agent 2
Stir 5. The filter material 25 is housed in a space defined by the inner walls of the filter tank 24, the outer peripheral surface of the hollow member 26, and wire nets 29a and 29b arranged near the both ends of the hollow member 26.

FIG. 8 is a sectional view taken along the line AA of FIG. The structure of the self-priming tank 12 will be described with reference to FIG. A flow path 32 is provided on the upper side of the suction pipe 5 by being partitioned by an upright wall 31 provided in the self-priming tank 12, and the upper end opening of the upright wall 31 faces the self-priming tank 12. A heater 12a is laterally inserted in the center of the self-priming tank 12. A passage 34 (not shown in FIG. 5) is formed by the partition wall 33 below the self-priming tank 12, and the passage 34 communicates with the pump case suction port 11b of the circulation pump 11. Circulation pump 11
The discharge side of the pump case communicates with the water pipe 35. Then, the height H1 of the portion flowing into the self-priming tank 12 is
It is configured to be higher than the height H2 of the portion flowing into the pump case and lower than the height H3 of the portion discharging from the pump case. Further, from the volume from the upper part of the bath water 3 of the suction pipe 5 for sucking the bath water 3 in the bathtub 2 to the self-priming tank 12 to the suction (flow-in) portion of the self-priming tank 12,
The volume from the upper part of the pump case inlet (flow-in) of the circulation pump 11 to the lower part of the pump case is larger. With such a configuration, when the hot bath machine is started after being temporarily stopped, the circulation pump 11 can absorb water without idling.

The operation of the warm bath machine 1 configured as described above will be described below. 2 and 5 during normal mode operation
As shown in FIG. 3, the bath water 3 in the bath 2 is pumped up through the suction pipe 5 by driving the circulation pump 11,
2 is heated by the flow path switching valve 14, and then the filtration device 1
3 to the inflow port 21, the hollow member 26 is guided to the tip side thereof, folded back, filtered through the outer peripheral portion of the hollow member 26 by the filter medium 25, and the filtered bath water is discharged from the outflow port 22. After passing through the flow path switching valve 14, it is returned from the discharge pipe 7 into the bath 2 and circulated between the hot bath machine 1 and the bath 2.

Further, in the cleaning mode operation, as shown in FIGS. 3 and 6, by switching the flow path switching valve 14, the bath water 3 is made to flow in the filter device 13 in the direction opposite to that in the normal mode operation. Therefore, the filter device 13 is washed. That is, the bath water 3 in the bath 2 is pumped up through the suction pipe 5 by the drive of the circulation pump 11, passes through the flow path switching valve 14, and enters the filtering device 13 from the direction opposite to that in the normal mode operation, and the filtering material is supplied. Wash 25. The dirty water after the washing is
Since the automatic drain valve 16 is switched due to the change of the flow path, the water is drained to the outside of the bathtub 12 through the drain pipe 17. This cleaning operation may be appropriately performed when the filter medium 25 becomes dirty. During the cleaning mode operation, the stirring rod drive motor 28
Is driven to rotate the stirring rod 27 together with the hollow member 26 to stir the filtering agent 25 evenly, so that the cleaning performance can be improved.

Further, during the jet mode operation, as shown in FIGS. 4 and 7, the flow passage switching valve 14 is switched to drive the circulation pump 11 to drive the bath water 3 into the filtering device 1.
It is passed through only the heater tank 12 without passing through 3 and is vigorously injected into the bath 2.

Further, since the present hot bath machine 1 is equipped with the self-priming tank 12 having the above-mentioned structure, the hot bath machine 1 is temporarily stopped, and then the bath water 3 is poured into the bathtub 2 to start the operation. In the case of operating or restarting the operation by operating the flow path switching valve 14 and restarting the operation, the circulation pump 11 can be driven without the trouble of priming, and starting and restarting are easy. You can do it. Further, if the flow-path switching valve 14 is operated and the operation mode is switched while the circulation pump 11 is operating, the flow passage is cut off, which may cause an abnormal load to the circulation pump 11. According to this, since the operation of the circulation pump 11 is stopped and the flow path switching valve 14 is operated, such a problem does not occur, and the circulation pump 11
The life of can be extended. Further, since the heater tank having the heater 12a therein is integrated into the self-priming tank 12, the device can be downsized as compared with the case where the heater tank is provided separately.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, the filtration tank 2
The flow direction of the bath water 3 in 4 may be reversed between the normal mode and the cleaning mode.
It may be sent through the inside to the tip side and then folded back, or may be first sent through the outer peripheral portion of the hollow member 26, that is, through the filter medium 25 to the tip side and then folded.

[0016]

As described above, according to the circulating hot bath machine of the first aspect of the present invention, since the circulation pump is provided with the self-priming tank, it is possible to start after a temporary stop without the trouble of priming.
Easy to restart. Further, according to the circulating hot bath machine of the second aspect of the present invention, the circulation pump can be reliably driven at the time of starting and restarting. According to the circulating hot water bath of the third aspect of the present invention, in addition to the above effects, an abnormal load is not applied to the circulation pump when the flow path switching valve is operated, and the circulation pump Longer life. Further, according to the circulation warm bath machine according to the invention of claim 4,
In addition to the above effects, since the heater tank containing the heater is used as the self-priming tank, compared to the case where these are provided separately,
The device can be downsized and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a circulating hot water bath according to an embodiment of the present invention is installed in a bath.

FIG. 2 is a schematic configuration diagram of the same circulating warm bath machine during normal mode operation.

FIG. 3 is a schematic configuration diagram of the same circulating warm bath machine during a cleaning mode operation.

FIG. 4 is a schematic configuration diagram of the same circulating hot bath machine during jet mode operation.

FIG. 5 is a cross-sectional view of the same circulating hot bath machine during normal mode operation.

FIG. 6 is a cross-sectional view of the same circulating warm bath machine in a cleaning mode operation.

FIG. 7 is a cross-sectional view of the same circulating hot bath machine during jet mode operation.

8 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 circulation warm bath machine 2 bathtub 3 bath water 11 circulation pump 12 heater tank (self-priming tank) 12a heater 13 filtration device 14 flow path switching valve

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area F24H 9/00 W

Claims (4)

[Claims] 1. A circulation pump for sucking bath water in the bathtub and circulating the bathwater between the main body of the warm bath machine and the bathtub; a heater for heating the bathwater sucked by the circulation pump to a predetermined temperature; In a circulating hot bath machine equipped with a filtering device for filtering bath water sucked by a circulating pump, a self-priming tank for the circulating pump is arranged in a circulating water channel in the body of the hot bath machine. . 2. The pump from the upper part of the pump case inlet of the circulation pump to the pump from the volume of the pipe for sucking the bath water in the bath into the self-priming tank to the suction part of the self-priming tank. The circulating hot bath machine according to claim 1, wherein the volume up to the bottom of the case is larger. 3. A hot water bath main body is provided with a flow path switching valve for switching the flow path of the bath water sucked by the circulation pump, and the operation of the circulation pump is stopped when the flow path switching valve is driven. The circulating hot bath machine according to claim 1 or 2, wherein 4. The circulating hot bath machine according to claim 1, wherein the heater is provided in the self-priming tank.