JPH0796968B2 - Bathtub equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bathtub apparatus, and more particularly, to automatically perform hot water supply, reheating, and removal of scales after bathing in consideration of preparation for the next bather. The present invention relates to a bathtub device.

[Background Art] Generally, after one person takes a bath, the amount of hot water decreases and cools, and the scale of the water also floats, so if the next bather is taken into consideration, hot water may be added or reheated. It is desirable to perform work such as removing scale. However, since it is troublesome for a person to perform these tasks, it has been desired to automate a series of these tasks.

[Object of the Invention] The present invention has been made in view of the above points, and its main purpose is to automatically perform the preparation work for the next bather after bathing. To provide a bathtub device.

DISCLOSURE OF THE INVENTION (Example 1) As shown in FIG. 1, the hot water supply device 1 and the reheating device 2 use the same hot water supply device 7. The hot water supply device 1 is provided with a heat exchanger 12 inserted in the hot water supply pipe 11 to perform heat exchange with the hot water supply device 7. After heating the city water through the heat exchanger 12, a hot water supply valve 13 which is a solenoid valve or a motorized valve is installed. Hot water is supplied to the bathtub 6 from a hot water supply port 14 provided above the bathtub 6. Here, a water supply pipe for directly injecting city water into the bathtub 6 may be provided separately from the hot water supply pipe 11, or hot water supply and water supply may be performed via a mixing stopper. Reheating device 2
Has a circulation path 21 from an intake 24 provided in the lower portion of the bathtub 6 to an extraction outlet 25 provided near the water surface of the inner wall surface of the bathtub 6. The circulation path 21 has heat for exchanging heat in the water heater 7. Exchanger 22,
It has a configuration in which the additional heating valve 23 is inserted. Therefore, when the reheating valve 23 is opened, the hot water in the lower portion of the bathtub 6 is passed through the heat exchanger 22, and then the heated hot water is returned to the bathtub 6 by natural circulation. Here, an example is shown in which the reheating valve 23, which is an electromagnetic valve or an electric valve, is provided, but a pump may be provided in place of the reheating valve 23 for forced circulation.

The purifying device 3 for removing the scales removes scales near the water surface in the bath 6 from one end of the bath 6 from the water collecting section 31 and removes the scales with the filter 32, and then pressurizes with the pump 34 to purify the scale. It has a circulation path 33 for returning the water from the discharge port 41 provided in the vicinity of the water surface at the other end of the bathtub 6 into the bathtub 6. With this configuration, the water discharged from the discharge port 41 forms a water flow in one direction near the water surface of the bathtub 6, and the water intake part 31 is provided on the downstream side.
That is, since a water flow that flows in one direction is formed near the water surface of the bathtub 6, it is possible to collect the scales on one end side, and the scales thus collected are collected by the water portion 31. As a result, the drainage part 31 of the entire bath 6 is removed.
It can be collected in the vicinity of, and the scale can be removed efficiently.

A water level sensor 51 and a water temperature sensor 52 are provided in the bathtub 6, and the outputs of the water level sensor 51 and the water temperature sensor 52 are input to the control device 5. The control device 5 operates as shown in FIG. The controller 5 has a water temperature setting unit for setting the boiling temperature, and the boiling temperature can be set in advance. When the control switch 5 is started by turning on the start switch after setting this temperature, the water level in the bathtub 6 is first detected by the output of the water level sensor 51, and when the water level in the bathtub 6 is lower than the desired water level, the hot water supply valve Open 13 to supply hot water into the bathtub 6. Here, the water level is usually set to a predetermined fixed water level. In this way, when the water level in the bathtub 6 reaches the desired water level, the hot water supply valve 13 is closed to stop hot water supply. Next, the controller 5 detects the water temperature in the bathtub 6 from the output of the water temperature sensor 52, and if the water temperature is below a preset desired temperature, opens the reheating valve 23 to perform additional heating. When the water temperature reaches a desired value, the reheating valve 23 is closed to stop the reheating. Then, the controller 5 operates the pump 34 to remove the scale. The scale is removed for a predetermined time (about 10 minutes), and then the pump 34 is stopped. It goes without saying that the water level setting may be variable.

As described above, hot water supply, heating, and purification are performed automatically simply by turning on the start switch, and by simply turning on the start switch after bathing, the next bather can comfortably take a bath. You can prepare.

Moreover, the water intake part 31 collects the hot water near the water surface in the bathtub 6 and the water intake port 25 is provided near the water surface on the inner wall surface of the bathtub 6, so that even if the scale is removed after the reheating, the discharge port is discharged. The direction of the water flow from the water discharged from 41 can be made unidirectional without any hindrance, and the scale can be removed efficiently.

Second Embodiment In the first embodiment, the water purified by the purifying device 3 is discharged from the water discharge port 41 to form a unidirectional flow near the water surface. However, in the present embodiment, the discharge is performed. The water discharged from the water inlet 41 is taken in through a water inlet 42 different from the purification device 3.

That is, the bathtub 6 is, as shown in FIGS.
The upper surface is formed into a rectangular opening. Bath 6
At both corners at one longitudinal end (the left end in FIG. 2), an intake cover 36 having an intake port 35 is arranged at the upper part thereof, and the intake part 36 is formed by the intake cover 36. There is. Inside the water intake cover 36, as shown in FIG. 5, a water intake cylinder 37 having an open upper end and running vertically is formed. The filter 32 is arranged at a position corresponding to the center of one end surface (left side surface in FIG. 2) of the bathtub 6, and an exchange port 38 for replacing the filter 32 is provided at this end surface of the bathtub 6. ing. The exchange port 3 is closed except when the filter 32 is exchanged. A suction port 39 is provided below the exchange port 38, and a discharge port 40 is provided above the exchange port 38.
A pump 34 is provided on the first circulation path 45 that connects the discharge port 40 with the discharge port 40.
Are placed. Further, a second circulation passage 46 is formed in a route different from the first circulation passage 45 so as to pass through the filters 32 from both of the water intake cylinders 37, and one end portion of the second circulation passage 46 is opened near the discharge port 40. To do. Therefore, when the pump 34 is started, a negative pressure is generated near the outlet of the second circulation path 46 due to the water flow flowing through the first circulation path 45, and this negative pressure causes the water intake pipe 37 in the second circulation path 46.
Thus, a water flow is formed from the filter 32 toward the discharge port 40. Since the intake pipe 37 opens near the water surface in the bathtub 6, the scale is introduced into the intake pipe 37.
Further, since the suction port 39 is formed in the lower portion of the bathtub 6, the scale will not be sucked into the pump 34.

On the other hand, the water inlet 42 is formed in the lower part of the side surface (upper surface in FIG. 2) of the bathtub 6, and the water sucked from here is circulated in the circulation path 47.
The water discharge port 41 is pressurized by the circulation pump 43 arranged above.
Discharge from. The spout 41 is provided at both corners of the end surface on the side opposite to the spout 40, and when water is spouted from the spout 41, it moves from the right side to the left side in FIG. A stream of water is formed. In this way, the scale 32 can collect the scale while collecting it on the left side.

A drain 61 is provided on the lower surface of the bathtub 6,
The drainage port 61 can be opened and closed by operating the drainage valve operation handle 63 provided on the 62. In addition, the apron 62 is provided with a water flow changeover switch 64 so that the speed of the water flow discharged from the water discharge port 41 can be switched between a slow water flow and a fast water flow. Therefore, when removing the scales, the scales should be collected as a gentle stream, and if a fast stream is selected, the water in the bathtub 6 should be stirred when hot water is supplied, or the body should be massaged when bathing. You can do it. The water flow can be switched not only manually but also automatically by the controller 5.

The other configuration is the same as that of the first embodiment, and the control device 5 also operates in the same manner.

FIG. 7 is a generalized version of the control device 5, which includes at least a control signal for the hot water supply valve 13, a control signal for the water supply valve 14, a control signal for hot water supply operation of the hot water supply device 7, and an additional hot water supply device 7. A control signal for heating is input.
In addition, a water level sensor 51 arranged in the bathtub 6 as needed.
Alternatively, a detection signal from a water temperature sensor 51 arranged in the bathtub 6 or the water heater 7 is input. The control device 5 receives these signals and manages water supply to the bathtub 6, hot water supply, reheating, or the like. Further, the control device 5 has an interface and can be controlled by a control signal from an external microcomputer or the like. By providing such an interface, fine control can be performed by a control signal from the outside, and addition of functions becomes easy. Further, this control device 5 is provided with the hot water supply valve 13, the water supply valve 14, or the reheating device 2 as shown by the broken line in FIG.
You may unitize with the piping etc.

FIG. 8 is an example of an additional function of the control device 5, in which a pipe 71 is drawn out from the lower portion of the bath 6 and a valve is provided on the pipe 71.
72 and a pump 73 are arranged. The pipe 71 is connected to the water injection valve 74 of the washing machine 8. The water injection valve 74 is provided with means for generating a signal when the water injection valve 74 is closed by a limit switch or the like, and this signal is input to the control device 5. Therefore, when the remaining water in the bathtub 6 is injected into the washing machine 8, the control device 5 opens the valve 72 and starts the pump 73 to perform the water injection, and receives the signal when the water injection valve 74 is closed. It is possible to control the pump 73 to be stopped while closing 72.

What is shown in FIG. 9 is piping instead of the signal from the water injection valve 74.
The flow switch 75 is arranged on the 71, and the signal from the flow switch 75 is input to the control device 5. Flow switch
75 generates a signal when a predetermined amount of water flows through the pipe 71, and the valve is the same as when receiving the signal from the water injection valve 74.
It is possible to control the 72 and the pump 73.

[Advantages of the Invention] As described above, the present invention includes hot water supply means for supplying hot water into a bathtub,
A water level detecting means for detecting the water level in the bathtub, a reheating means for reheating the hot water in the bathtub taken from the inlet and returning it to the bathtub from the outlet, and detecting the water temperature in the bathtub. Of the water temperature detecting means, the jet means for discharging water from the spout provided near the water surface of the inner wall surface of the bathtub so as to form a unidirectional flow near the water surface of the bathtub, and the inner wall surface of the bathtub A purifying unit that includes an intake unit that takes in water in the bathtub from a portion that opposes the spout and removes scales floating near the water surface in the bathtub; and a hot water supply unit when the water level detecting unit detects that the water level is below a desired level The hot water is supplied by the water temperature detecting means, and when the water temperature detecting means detects that the water temperature is lower than the desired water temperature, the reheating means performs reheating, and then the jet means and the purifying means are operated to remove the scales. Control to control A surface facing the inner wall surface of the tub where the water intake portion of the purifying means is provided near the height of the desired water level on the inner wall surface of the bathtub and the outlet of the reheating means is provided inside the bathtub. Since the hot water supply means and the reheating means have set the desired water level and water temperature, respectively, the jet means and the purifying means are operated to remove the scales, so that the hot water is supplied or reheated. The generated water flow does not diffuse the scale, and the water outlet of the jet means and the water intake portion of the purification means are provided facing the inner wall surface of the bathtub, and the water discharged from the water outlet creates a gentle flow near the water surface. Make the scale that forms and floats near the water surface close to the water part,
The scale can be removed efficiently by collecting the scale in the vicinity of the water portion, and after the bath, the preparation work is automatically performed by adding the bath for the next bather, warming the bath, and then removing the scale. There is an effect that you can take a comfortable bath at any time without taking time and effort to prepare for bathers.

[Brief description of drawings]

1 is a schematic configuration diagram showing Embodiment 1 of the present invention, FIGS. 2 to 4 are plan views, longitudinal sectional views, and transverse sectional views showing Embodiment 2 of the present invention, and FIG. FIG. 6 is a schematic configuration diagram showing an example of piping, FIG. 6 is an operation explanatory diagram of a control device used in the first and second embodiments of the present invention, and FIG. 7 is a schematic configuration diagram showing a generalized control device. FIG. 9 and FIG. 9 are schematic configuration diagrams showing other usage examples of the control device. 1 is a hot water supply device, 2 is a reheating device, 3 is a purification device, 4 is a jet device, 5 is a control device, 31 is a water intake part, 41 is a water outlet, 51 is a water level sensor, and 52 is a water temperature sensor.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masaaki Kumagai 5-chome, Hirano-cho, Higashi-ku, Osaka City, Osaka Prefecture Osaka Gas Housing Equipment Co., Ltd. (72) Tsuneo Tanaka, 1048 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Michiyoshi Abe 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Kaoru Yamashita, 1048, Kadoma, Kadoma, Osaka Prefecture (72) Inventor, Sato Kozo 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Inventor, Yoshiyuki Inagami, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (56) Reference JP-A-57-175845 (JP, A) JP 58-198319 (JP, A) Actual development 57-70329 (JP, U)

Claims (1)

[Claims] 1. Hot water supply means for supplying hot water to the bathtub, water level detection means for detecting the water level in the bathtub, hot water in the bathtub taken in through the intake port, and returned to the bathtub through the intake port for additional heating. The reheating means for performing, the water temperature detecting means for detecting the water temperature in the bathtub, and the water discharge port provided near the water surface of the inner wall surface in the bathtub so as to form a gentle flow near the water surface in the bathtub in one direction. A jetting means for discharging water, a purifying means for removing scales floating in the vicinity of the water surface in the bathtub, and a water level detecting means, comprising a water intake part for taking in water in the bathtub from a portion of the inner wall surface of the bathtub facing the water outlet When it is detected that the water temperature is below the desired water level, hot water is supplied by the hot water supply means, and when it is detected that the water temperature is below the desired water temperature, the additional heating means performs additional heating, and then the jet means cleaning means. To activate the scale And a control means for controlling each of the above means so as to remove the intake means of the purification means near the height of the desired water level on the inner wall surface of the bathtub and the outlet of the reheating means in the bathtub. A bathtub device, wherein the bathtub device is provided on an upper portion of a surface facing the inner wall surface provided with the portion.