JP2583581Y2 - Bathtub cleaning equipment - 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 hot water purifier for cleaning bathtub hot water, and more particularly to detecting the presence or absence of hot water in a hot water circulation path of a bathtub hot water purifier to eliminate hot water. Further, the present invention relates to a safety device that operates the apparatus in a water shortage state to prevent the circulating pump from running idly and the heater for keeping heat from idling, thereby maintaining safety.

[0002]

2. Description of the Related Art Recently, hot water in a bathtub is forcibly circulated by a circulating pump through a circulation path in which various cleaning apparatuses are arranged in series, and a dirt such as dirt and hair floating in the hot water is filtered. Bath water purifiers for purifying hot water by filtration, activation treatment in an activated stone tank, or sterilization by a sterilizer have been developed and are being actively used.

[0003] More recently, in addition to simply purifying hot water, an electric heater for keeping warm has been provided to keep the temperature of the hot water constantly and to be able to take a comfortable bath at any time for 24 hours. A jet nozzle is provided at the outlet of the hot water treated into the bathtub to jet a jet stream,
Some people have enjoyed the so-called bubble bath.

In such an apparatus for cleaning bath water,
For example, the hot-water inlet is closed, hot water in the bathtub is drained, or air is sucked into the pipeline due to damage to the equipment or other reasons, and the hot-water absorbing capacity of the circulating pump is reduced. May stop and the hot water in the circulation path may be in a shortage state, that is, a water shortage state.

[0005] When the circulation path is in a water shortage state, the circulation pump naturally runs idle and breaks, and the heater for heating keeps the heating empty and damages the apparatus or causes a fire. There is even.

Conventionally, a water level detecting device is provided in the circulation path as shown in FIG. 2 as a safety device for preventing the above-mentioned accident from occurring. Was detected.

In FIG. 2, reference numeral 1 denotes a bath tub containing hot water 2;
Is a suction pipe fitted with a pre-filter 3 for filtering large dirt at the suction port at the tip, 5 is a filtration device equipped with a filter 6 for filtering dirt in the hot water, and 7 is for forcibly circulating the hot water. 8 is a heater for keeping the temperature of the hot water at an appropriate temperature, 9 is an activated stone 10 for activating the hot water.
Activated stone tank 11 filled with a jet nozzle is provided with a jet nozzle 12 for jetting a jet stream at a jet port at the tip of the tank. They are arranged in series while being connected to each other at 16, 17, 18 and the like. In addition, an ozone sterilizer (not shown) and the like are also arranged to form a cleaning device.

As described above, the water level detecting device 13 for detecting a water shortage is provided in the cleaning device.
The water level detecting device 13 connects a horizontal pipe branched at an upstream lower position and a downstream upper position of a hot water circulation path with a vertical pipe to form a bypass pipe 14 as a thin pipe.
Float switch 1 as a water level detector on the vertical pipe of No. 4
5 is provided.

In the cleaning apparatus constructed as described above, the hot water 2 in the bathtub 1 is sucked up by the operation of the circulation pump 7 while filtering large dirt from the hot water pipe 4 by the pre-filter 3. After the dirt is filtered by the heater, the heater is heated to an appropriate temperature by the heater 8 and finally activated by the activated stone tank 9, and is jetted again into the bathtub 1 as a jet stream from the jet nozzle 12 through the fountain pipe 11.

Of course, ozone from an ozone sterilizer (not shown) is mixed into the hot water at an appropriate position in the circulation path to perform ozone sterilization.

In the above-described cleaning device, when the hot water normally circulates in the pipe for cleaning, the hot water also flows through the bypass pipe 14 of the water level detecting device 13 and the float switch 15. Is ON and it is detected that there is no water shortage.

However, if the circulation of hot water stops for some reason and water shortage occurs, the water level in the various cleaning devices provided in the hot water circulation path drops, and the water level in the bus path line 14 of the water level detection device 13 also drops. And the float switch 15 is O
It becomes FF, and thereby water shortage is detected.

[0013]

However, when the conventional water level detecting device 13 is used, since the dirty hot water is constantly circulated through the bypass line 14 through the float switch 15, the float switch 15 is If the device is operated for a long period of time, the device will not operate normally due to fouling or foreign matter being caught, resulting in increased malfunction.

The present invention solves the above-mentioned drawbacks of the prior art, and in a bathtub hot water purifier, when water shortage occurs even after long-term operation, it can accurately detect this without malfunction. Moreover, it is an object to provide a simple water level detection device.

[0015]

That is, the present invention is directed to a cleaning apparatus for cleaning bathtub hot water in which various cleaning treatment devices are arranged in series in a forced circulation line of bathtub hot water in which bath water is forcibly circulated by a circulation pump. In the apparatus, a bypass pipe in which a horizontal pipe branched from an upstream lower position and a downstream upper position from a forced circulation pipe of hot water is connected by a vertical pipe, and a horizontal pipe branched from the bypass pipe at a lower end position of the vertical pipe. Above the water level detection unit at the same height as the bypass pipe connecting the branch pipe and the vertical branch pipe branched at the upper end position with the vertical pipe standing at the end of the horizontal branch pipe and the horizontal pipe extending at the top of the vertical pipe A water level detection device comprising a water level detection pipe whose position is bypassed by a reverse trap section and a water level detector provided on a vertical pipe standing on a horizontal branch pipe in the water level detection section of the water level detection pipe is provided. Bath water purifier.

[0016]

The present invention is constructed as described above, and when the operation of the apparatus is started and hot water circulates in the circulation line, in the water level detection device, the water level detection line is provided on a horizontal branch pipe. The hot water is filled only up to the water level detector at the same height as the bypass pipe in the vertical pipe, but since the water level detector is provided in the water level detector in this vertical pipe, it is turned on with the inflow of hot water and is not in a water shortage state Is detected.

However, after that, the hot water circulates in the bypass pipe, but the water level detecting pipe hardly circulates because the reverse trap portion is bypassed upward, and the water level detector is not contaminated with the circulating hot water. It does not malfunction even if it is operated for a long time.

When a shortage of water occurs in the circulation path of the hot water, the water level of the hot water flowing into the water level detecting portion of the vertical pipe standing on the horizontal branch pipe of the water level detecting pipe is determined by the water level detecting device. When the water level of the bypass pipe falls with the water level, the water level detector is turned off to detect that a water shortage has occurred.

As described above, in the water level detection device, the water level detector is provided at a position where the water level of the forced circulation line of the water level detection line can be accurately detected and the adhesion of dirt can be completely prevented. Even if the device is operated for a long period of time, it accurately detects the water shortage in the forced circulation line without malfunction.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. The basic structure of this cleaning apparatus is the same as that of the cleaning apparatus shown in FIG. Therefore, the basic description of the apparatus will be omitted, and only the water level detecting apparatus will be described.

Reference numeral 19 denotes a water level detecting device according to the present invention. The water level detecting device 19 comprises a narrow bypass line 20 formed by branching off from a forced circulation line for bathtub hot water, and a bypass line 2 of this type.
And a water level detection line 21 provided with a water level detector 15.

The bypass line 20 is connected to the end of a connecting pipe 17 connecting the circulation pump 7 and the heater 8 at the lower position on the upstream side of the forced circulation line for hot water, the heater 8 and the activated stone tank 9 at the upper position on the downstream side. Are connected by a vertical pipe to a connecting pipe 18 connecting the end of the horizontal pipe and a terminal of a horizontal pipe branched horizontally.

The water level detecting pipe 21 branches the horizontal pipe from the lower end of the vertical pipe of the bypass pipe 20, and branches the vertical pipe from the upper end. The horizontal branch pipe and the vertical branch pipe are vertically separated from the horizontal branch pipe. And a horizontal pipe extending horizontally in the direction of the vertical branch pipe from the vertical pipe and connected to each other, and formed above the water level detection unit 22 at the same height as the bypass pipe 20. Is a conduit in which the reverse trap portion 23 bypasses.

Float switch 15 as water level detector
Is a water level detection unit 22 having the same height as the bypass pipe 20 in the vertical pipe erected on the horizontal branch pipe of the water level detection pipe 21.
It is provided in.

In the case where the water level detecting device 19 is formed as described above, when the hot water circulates through the forced circulation line in which the cleaning treatment device is arranged in series by the operation of the device, the water level detecting device 1
At 9, the hot water circulates through the bypass line 20 and also enters the water level detection line 21.

However, the water level detecting pipe 21 is provided with an upper position at the same height as the bypass pipe 20 in the reverse trap section 23.
Is bypassed, so that the hot water only circulates to the upper end of the water level detection unit 22 having substantially the same height as the bypass line 20 indicated by the one-dot chain line A, and cannot circulate in the entire water level detection line 21.

Accordingly, when the operation of the apparatus is started, in the water level detecting device 19, the hot water enters the water level detecting section 22 of the water level detecting pipe 21 and the water level in the vertical pipe standing on the horizontal branch pipe. The float switch 15 provided in the detection unit 22 is turned on and detects that there is no water shortage.

When the operation is continued thereafter, the water level detecting device 19
In this case, the hot water constantly circulates in the bypass pipe 20 but does not circulate in the water level detection pipe 21, so that the float switch 15 is in a state in which dirt contained in the circulating hot water does not adhere.

Next, when the flow of hot water stops due to an abnormality in some device and the water level of each processing device drops, causing a shortage of water in the forced circulation line of the hot water. At the same time, the water level of the hot water that has flowed into the water level detection unit 22 of the water level detection pipe 21 also decreases, and the float switch 15 is turned off to detect that water shortage has occurred.

As described above, the water level detecting device 19 allows the water level detector 15 to detect the water level of the forced circulation line of the hot water in the water level detecting line 21 accurately and at the position where the adhesion of the hot water can be completely prevented. In this way, a water shortage in the forced circulation line is always accurately detected without malfunction.

[0032]

[Effects of the Invention] The present invention has the above-described structure and operation, and detects a shortage of water in the forced circulation line of hot water due to an abnormality in the device constantly and accurately by using a very simple device, and idles the circulation pump. Provided is a bathtub hot water purifying apparatus that can safely operate by preventing empty heating of a heater and a heater.

[Brief description of the drawings]

FIG. 1 Example,

FIG. 2 shows a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Hot water 4 Water suction pipe 5 Filtration device 7 Circulation pump 8 Heater 9 Activated stone tank 11 Spouter pipe 15 Float switch 16 Connection pipe 17 Connection pipe 18 Connection pipe 19 Water level detection device 20 Bypass line 21 Water level detection line 22 Water level Detection unit 23 Reverse trap unit

Claims (1)

(57) [Scope of request for utility model registration] 1. A bathtub hot water purifying apparatus in which various cleaning treatment devices are arranged in series with a bathtub hot water forced circulation line in which the bathtub hot water is forcibly circulated by a circulation pump. A vertical pipe that connects a horizontal pipe branched at an upstream lower position and a downstream upper position with a vertical pipe, a horizontal branch pipe branched from the bypass pipe at a lower end position of the vertical pipe, and a vertical branch branched at an upper end position. The water level at which the reverse trap part bypasses the position above the water level detection unit at the same height as the bypass line connecting the branch pipe with the vertical pipe standing at the end of the horizontal branch pipe and the horizontal pipe extending at the upper end of the vertical pipe. An apparatus for purifying bathtub hot water, comprising a water level detection device comprising a detection pipe and a water level detector provided on a vertical pipe standing on a horizontal branch pipe in a water level detection section of the water level detection pipe.