JPH0535815B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is configured to accurately notify the user of any water leakage from plumbing equipment at an early stage, thereby preventing accidents due to water leakage. The present invention relates to a water leakage detection device.

BACKGROUND OF THE INVENTION In recent years, due to the deterioration of water quality, the problem of corrosion of plumbing equipment (for example, washing machines, water heaters, etc.) due to water has become a focus of attention. In particular, when plumbing equipment is installed in a residential building such as a high-rise apartment complex, if water leaks, it is not only a problem for the equipment user, but also a very serious problem for the people downstairs as well.

As a countermeasure for this, in addition to waterproofing the floor where the plumbing equipment is installed, installing new waterproof pans to treat drainage, and installing special water leakage detection devices around the plumbing equipment, Compatible.

A series of conventional water leak detection devices will be described below.

FIG. 5 schematically shows a conventional water leakage detection device. In FIG. 5, 16 is a conventional water leak detection device body, 13 is an alarm lamp, 14 is an alarm buzzer, 17 is a power cord, and 18 is a water leak detection band.

FIG. 6 shows the structure of the water leak detection band 18. 18-a is a water leak detection section, 18-b is a lead wire, and 18-c is an insulating coating.

FIG. 7 shows an example of the use of the conventional water leakage detection device. 19 is a sticker for fixing the water leak detection band 18 to the floor surface, and 20 is a water equipment.

The operation will be explained using FIG. 5, FIG. 6, and FIG. 7. A water leak detection zone 18 is installed on the floor around the water equipment 20. When water leaks from the plumbing equipment 20, the water reaches the water leak detection zone 18. On the surface of the water leakage detection band 18, water leakage detection portions 18-a are caulked at certain intervals.
Also, inside the water leakage detection band 18, there is a lead wire 18-
Two wires b are buried through the insulating cover 18-c, and voltages of different polarities are applied to them. Two of the detection units 18-a described above form a pair, and are separately connected to lead wires 18-b having different polarities. The water that has reached the water leak detection zone 18 electrically connects the independently provided detection sections 18-a through the resistance thereof. Detection part 1
As mentioned earlier, 8-a is connected to lead wire 18-b, and since voltages of different polarities are always applied to the two lead wires 18-b, the two lead wires 18-b A current will flow between 18-b. Further, the lead wire 18-b is connected to the water leakage detection device main body 16, and the conventional water leakage detection device main body 16 determines this phenomenon as a water leak, and issues an alarm provided in the conventional water leakage detection device main body 16. A lamp 13 and a warning buzzer 14 are used to notify the user of water leakage.

Problems to be Solved by the Invention However, with the above-described configuration, water leakage cannot be detected unless a considerable amount of water leaks, resulting in major damage to the plumbing equipment 20 and water leakage. There is a possibility that repair of the surrounding equipment 20 may become difficult. Moreover, since the system only detects water leakage and does not have the ability to drain it, the damage to houses is quite high. Moreover, since the scale of the equipment for the water leakage detection device itself becomes too large, there is a problem in that it has to be extremely expensive.

In view of the above-mentioned problems, the present invention provides a water leakage detection device that makes it possible to detect water leakage at an early stage.

Means for Solving the Problems The configuration of the present invention for solving the above problems is as follows:
Approximately C having a drain port for discharging leakage water, and having a partial cutout surrounding the drain port on the outer periphery of the drain port.
A bank in the shape of a letter is provided, and depressions are provided in the cut portion of the bank and the outside of the bank on the side facing the drainage outlet, and electrodes of different polarities are placed in the depressions. Further, the structure is such that electrical means such as alarm alarms and solenoid valves are energized by establishing conduction between the electrodes of different polarity through water leakage.

Function The present invention provides a water leak detection device having the above-mentioned configuration on the floor where plumbing equipment is installed, the bottom of a waterproof pan provided on the floor, or the bottom plate of plumbing equipment, so that water leaks from the equipment should occur. In this case, the leakage water will flow towards the drain. Before reaching the drain, water always hits the bank around the drain, flows from side to side, and accumulates in the depression. Also, one of the depressions is connected to a drainage outlet through a cut in the bank, so water is drained outside from there. When water accumulates in the recess and is discharged from the drain port, electrical conduction occurs between the electrodes of different polarities, and a water leakage state is detected. Then, a notification is given by an alarm device such as a lamp or buzzer that is electrically connected to the electrode.

As a result, water leaks can be detected early, leading to specific actions such as closing hydrants and stopping operation, thereby minimizing damage caused by water leaks. In addition, by installing a solenoid valve in the water supply circuit of the plumbing equipment instead of an alarm such as a lamp or buzzer and electrically connecting it to the electrode, the water supply circuit can be cut off in the event of water leakage, making it more reliable. Damage from water leakage accidents can be prevented.

Embodiment Hereinafter, a water leakage detection device according to an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a main body of the water leakage detection device, and 2 is a drain port provided in the main body of the water leakage detection device.

3 is a substantially C-shaped bank provided on the outer periphery of the drain 2, and 4 is a cut provided in the bank 3.

Reference numeral 5 is a depression provided in the cut 4, and reference numeral 6 is another depression provided on the outside of the bank 3 on the side opposite to the drain 2.

7 is the outer wall that guides the flow of water.

8 is a different polarity electrode for detecting water leakage.

FIG. 1A is a perspective view of the main body 1 of the water leakage detection device.

FIG. 1B is a plan view of the water leakage detection device main body 1, and FIG. 1C is a sectional view taken along line EE in FIG. 1B.
FIG. 1D shows a sectional view taken along line FF in FIG. 1B.

FIG. 2 is a schematic configuration diagram of the water heater used in the present invention, and FIG. 3 is an electrical connection diagram of the main components thereof.

In FIGS. 2 and 3, 9 is a tank for storing hot water, and 10 is a solenoid valve that opens and closes the water supply circuit of the tank 9.

Reference numeral 11 denotes a bottom plate for fixing the tank 9 and the main body 1 of the water leakage detection device.

12 is a control section, to which an alarm lamp 13 and an alarm buzzer 14 are connected. Further, in this embodiment, a solenoid valve 10 is also connected.

The operation will be described below with reference to FIGS. 1, 2, and 3.

When water leaks from the tank 9, water accumulates on the bottom plate 11 and flows into the water leak detection device main body 1 fixed to the bottom plate 11, collides with the bank 3 and changes direction to the left and right. The diverted water then flows into the depressions 5 and 6, and the water flows into the depressions 5 and 6.
It passes through and is discharged to the outside from the drain port 2. At this time, electrical continuity is established between the different polarity electrodes 8 provided in the recesses 5 and 6 due to water leakage, and a signal is sent to the control section 12. The control unit 12 receives the warning lamp 13.
And the alarm buzzer 14 is operated to notify the water leakage phenomenon. In addition, a solenoid valve 10 provided in the water supply circuit of the tank 9
It also has the function of sending a signal to the water supply circuit and disconnecting it.

A second embodiment of the present invention will be described below with reference to the drawings. Note that the same parts as in the first embodiment are given the same numbers to simplify the explanation.

FIG. 4 is a plan view and a GG sectional view of a second embodiment of the present invention. 15 is a groove provided in place of the depressions 5 and 6.

Even if leakage water is flowing into the water leakage detection device main body 1, it collides with the bank 3, climbs over the bank, is discharged to the outside from the drain port 2, passes through the groove 15, and conducts between the different polarity electrodes 8. As mentioned above, the same effect can be obtained even if the grooves 15 of the second embodiment are used in place of the recesses 5 and 6 of the first embodiment.

Effects of the Invention As described above, the water leakage detection device of the present invention can be easily installed on the floor where plumbing equipment is installed, the bottom of a waterproof pan provided on the floor, or the bottom plate of plumbing equipment. By doing so, in the event of water leakage from equipment, conduction is established and an alarm such as a warning lamp or buzzer is used to notify the user of water leakage from plumbing equipment. can be stopped. Furthermore, by connecting a solenoid valve to the water supply piping of the plumbing equipment, it is possible to cut off the water supply to the plumbing equipment in the event of water leakage.

By doing this, it is possible to prevent the amount of water leaking from increasing gradually with the passage of time until it can no longer be handled by the length of the drain pipe and overflowing into the room, thereby preventing water leakage from spreading to other areas. Furthermore, since water leakage can be detected early, it also has the effect of eliminating the need for wasted electricity.

[Brief explanation of the drawing]

FIGS. 1A to 1D are a perspective view and a plan view of the main body of the water leakage detection device according to the first embodiment of the present invention, and FIG.
E sectional view, FF sectional view of FIG. 1B, FIG. 2 is a schematic configuration diagram of a water heater used in the present invention, and FIG. 3 is an electrical connection diagram of the main parts thereof. 4A and 4B are a plan view of a main body of a water leak detection device according to a second embodiment of the present invention, and a sectional view taken along line GG in FIG. 4A. Figure 5 is a perspective view showing the schematic configuration of a conventional water leakage detection device;
This figure is a perspective view showing the structure of a water leakage detection band of a conventional water leakage detection device, and FIG. 7 is a perspective view showing an example of use of the conventional water leakage detection device. 1...Water leak detection device body, 2...Drain port, 3...
...Bank, 4...A cut in the bank, 5...A depression in the cut, 6...Another depression,
7... Outer wall, 8... Different polarity electrode, 9... Tank,
10...Solenoid valve, 11...Bottom plate, 12...Control unit, 13...Alarm lamp, 14...Alarm buzzer,
15... groove.

Claims (1)

[Scope of Claims] 1. A drain hole for discharging leakage water, a substantially C-shaped bank with a partial notch is provided around the outer periphery of the drain port, and a cut in the bank is provided. A depression is provided on the outer side of the bank on the side facing the drainage port, and electrodes with different polarities are arranged inside the depression, so that water leakage can occur between the electrodes with different polarities. A water leak detection device configured to conduct electricity and energize electrical means such as alarm alarms and solenoid valves. 2. The water leakage detection device according to claim 1, wherein the different polarity electrode is floated above the bottom surface of the recess and is attached at the same height as the edge of the recess.