JPS62268951A - Leak water sensor - Google Patents

Abstract

PURPOSE:To exactly detect leak water in a much earier stage by a vary simple constitution in which a leak water sensing section is provided in contact with a water-using apparatus and the floor on which the apparatus is set. CONSTITUTION:When the leakage of water from a water-using apparatus 17 occurs, the water is directed by its own osmotic pressure to the apparatus 17 and a floor 18 on which the apparatus 17 is set. A leak water sensing section 11 set between the apparatus 17 and the floor 18 can respond to the occurrence of water leak immediately, and the leak water is imbibed by the blotting paper 14 of the sensing section 11. Electrodes 12a and 12b embedded in the section 11 in a lattice-like form is normally insulated. When the blotting paper 14 having electrodes 12a and 12b contains sufficient moisture, the electrodes 12a and 12b become conductive through the resistance of water. Therefore, by applying differently polar voltages between the electrodes 12a and 12b through a lead wire 13 from a leak water sensor main unit 15, the leakage of water can be made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention can detect water leakage from equipment at an extremely early stage.
The present invention relates to a water leak detection device configured to accurately notify users and prevent accidents caused by water leaks.

Conventional technology In recent years, with the added influence of deteriorating water quality, the problem of water-induced corrosion of picture books, water heaters, etc. has come into focus.
Ru. Especially for supplying water to high-rise apartment buildings.

If water leakage occurs when a hot water supply device is installed, it may not only be a problem for the user of the device, but also a very serious problem for the people downstairs as well.

To counter this, we have waterproofed the floor where the equipment is installed, installed new drain pans to treat wastewater, and installed special water leakage detection equipment around the equipment.

An example of a conventional water leakage detection device will be described below.

Fig. 6 shows a schematic configuration diagram of a conventional water leakage detection device. In this Fig. 6, 1 is the main body of the water leakage detection device, 2 is an alarm buzzer, 3 is an alarm lamp, 4 is a power cord, 5 is a water leak detection zone.

FIG. 7 shows a structural diagram of the water leakage detection zone 5.
a is an electrode, 5b is an electrode lead wire, and 5c is an insulating coating. FIG. 8 shows an example of the use of a conventional water leakage detection device, and 6 is a sticker for fixing the water leakage detection band 5 to the floor surface. 7 is a device.

Next, the operation will be explained based on the above-mentioned FIGS. 6, 7, and 8. A water leakage detection zone 5 is installed on the floor around the equipment 7. When water leaks from the equipment 7, water flowing out due to this leak reaches the water leak detection zone 5. Electrodes 5a are caulked on the surface of the water leak detection band 5 at certain intervals. Further, two electrode lead wires 5b are buried inside the water leakage detection band 5, and voltages of mutually different polarities are applied to the electrode lead wires 5b. Two of the electrodes 5a mentioned above form a pair, and are separately connected to electric wires 5b having different polarities. That is, the two electrode lead wires 5b are connected to a plurality of electric 'F! iA5a, and each electric 'M5a is an independent one. The water that has reached the water leak detection zone 5 electrically connects the independently provided electrodes 5 & through its resistance. As mentioned above, the electrode 5a is connected to the electrode lead wire 5b, and voltages of different polarities are always applied to the two electrode lead wires 5b, so that the two electrode leads 5b are connected to the electrode lead wire 5b.
A current will flow between the 1J and the negative wires 5b. Further, the electrode lead wire 5b is connected to the water leakage detection device body 1, and the water leakage detection device body 1 determines this phenomenon as a water leakage, and an alarm buzzer provided in the water leakage detection device body 1 is activated.
2 and an alarm lamp 3 are used to notify the user of water leakage.

Problems to be Solved by the Invention However, with the above configuration, water leakage cannot be detected unless a considerable amount of water leaks, which may cause considerable damage to the equipment.
As a result, there was a fear that it would be difficult to repair the equipment. In addition, the method of installing the water leakage detection zone is complicated, and the scale of the equipment for the water leakage detection device itself is too large, resulting in a high price.

In view of the above problems, it is an object of the present invention to provide a water leakage detection device that can detect water leakage at an extremely early stage, has a very simple configuration, and can detect water leakage more reliably. It is something.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a water leak detection section that includes:
It is installed in contact with both the equipment and the floor surface on which the equipment is installed.

Effect of the present invention With the above-described configuration, in the event that water leaks from the equipment, the water leaking out from the equipment will come into contact with the floor surface on which the equipment is installed due to the osmotic pressure of the water itself. guided by the surface. Therefore, the water leakage detection section provided in contact with both the equipment and the floor surface on which the equipment is installed can immediately detect water leakage. As a result, water leaks can be detected at an extremely early stage, which not only improves the management of the equipment itself, but also prevents many accidents caused by water leaks.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

FIG. 2 shows a schematic configuration diagram of the water leakage detection device in the first embodiment of the present invention.
1 is a water shortage detection section, and in this water leakage detection section 11, electric wires 112a and 12b, which are arranged in a net shape, are embedded in moisture-absorbing paper 14 while maintaining an insulated state from each other. Also, the electrode 12
A lead wire 13 is connected to the ends of a and 12b, and is connected to the water leakage detection device main body 15. 15a is a warning lamp, 15b is a warning buzzer, and 16 is a power cord. FIG. 3 shows a structural diagram of the water leak detection section 11, in which electrodes 12a and 12b arranged in a net shape are embedded in moisture absorbing paper 14 in a mutually insulated state. FIG. 1 shows an example of the use of the water leakage detection device according to the first embodiment of the present invention, where 17 is a device and 18 is a floor surface on which the device 17 is installed. The water leak detection section 11 is
It is provided between the equipment 17 and the floor surface 18.

Next, the operation of the water leak detection device configured as described above will be explained with reference to FIGS. 1, 2, and 3.

When water leaks from the equipment 17 that uses water, the water is first guided to the contact surface between the equipment 17 and the floor 18 on which the equipment 17 is installed, using the osmotic pressure of the water itself. Therefore, the water leak detection section 11 installed between the equipment 17 and the floor 18 can react immediately when water leaks from the equipment 17. Water leakage is absorbed by the suction paper 14 of the water leakage detection section 11. The electrodes 12a and 12b buried in a net shape inside the water leak detection part 11 are normally in an insulated state, but if the moisture-absorbing paper 14 in which the electrodes 12a and 12b are buried contains enough water, the nine electrodes 12a 12b becomes conductive through the resistance of water. Therefore, in advance,
Water leakage can be detected by applying voltages of different polarities between the electrodes 12a and 12b from the water leakage detection device main body 15 via the lead wire 13.

Note that the water leakage detection device main body 15 includes an alarm lamp 15a,
An alarm buzzer 15b is provided, and both of these
It can notify the user of leaks. Furthermore, if the moisture-absorbing paper 14 is mixed in advance with a substance that becomes ions when dissolved in water and has the effect of increasing the conductivity of water, water leakage can be detected more sensitively. Also, as in this example, electric% 12 a, 12
By making b into a net shape, it can function as a sensing electrode even if it is cut to an arbitrary size according to the size of the device 1T. Furthermore, the moisture-absorbing paper 14 used in the present invention may be replaced with a resin having hygroscopic properties.

Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 4 shows a schematic configuration diagram of a water leakage detection device according to a second embodiment of the present invention.
1 is a water leak detection section, and this water leak detection section 19 is made of an insulating resin material and is formed in an L-shape. 2
The electric currents f120a and 20b are buried so as to be located on the corner surface of the water leakage detection section 19 while maintaining an insulated state from each other. Two electric lights! Lead wires 13 are connected to 20a and 20b, and are connected to the water leak detection device main body 15 via the lead wires 13.

FIG. 5 shows an example of the use of the water leak detection device, where 17 is a device, and 18 is a floor surface on which the device 17 is installed. The water leak detection section 19 is provided so as to be in contact with a corner of the contact surface between the device 17 and the floor surface 18. In addition, in this embodiment, the water leak detection part 19 is fixed with screws 21, but the fixing method may also be by using an adhesive or the like.

Next, the operation of the water leak detection device configured as described above will be explained using FIGS. 4 and 5.

When water leaks from the equipment 17 that uses water, the water first uses its own osmotic pressure to cause water to leak from the equipment 17.
The device 17 is guided to the contact surface with the floor surface 18 on which the device 17 is installed. The water leak detection section 19, which is provided so as to be in contact with a corner of the contact surface between the equipment 17 and the floor surface 18, can immediately respond when water leaks from the equipment 17.

Water leakage brings the two electrodes 12a and 12b, which are normally kept insulated from each other, into electrical continuity through the resistance of the water. Therefore, water leakage can be detected by previously applying voltages of different polarities between the electrodes 12a and 12b from the water leakage detection device main body 15 via the lead wire 13. Note that the water leak detection device main body 15 is provided with an alarm lamp 15a1 and an alarm buzzer 15b, and both can notify the user of a water leak.

Effects of the Invention As described above, according to the present invention, since the water leakage detection section is provided in contact with both the equipment that uses water and the floor surface on which this equipment is installed, the timing of detecting water leakage can be accelerated. It is something that can be done. This is because, in the unlikely event that water leaks from the equipment, the leakage will occur due to its own osmotic pressure.
This is because there is a tendency to be guided first by the contact surface between the equipment and the floor surface on which the equipment is installed. In addition, even if water leaks from any part of the equipment, the water will be directed evenly to the entire contact surface between the equipment and the floor on which it is installed.
With the above-mentioned contact surface, it is possible to detect water leaks from the equipment by installing just one water leak detection device regardless of the location.This makes it possible to detect water leaks from the equipment itself. This not only improves water management, but also prevents many accidents caused by water leaks.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing an example of the use of the water leakage detection device according to the first embodiment of the present invention, FIG. 2 is a schematic perspective view of the water leakage detection device according to the first embodiment of the present invention, and FIG. The figure is a cross-sectional perspective view of the water leakage detection section of the first embodiment of the present invention, and FIG. 4 is the second embodiment of the present invention.
FIG. 5 is a schematic perspective view showing an example of the use of the water leak detection device according to the second embodiment of the present invention, and FIG. 6 is a schematic perspective view of a conventional water leak detection device. Figure, 7th
The figure is a partial perspective view of a water leakage detection band of a conventional water leakage detection device, and FIG. 8 is a schematic perspective view showing an example of use of the conventional water leakage detection device. 11...Water leak detection section, 15...Water leak detection device body, 17...Equipment, 18...
Floor. Name of agent: Patent attorney Toshio Nakao and one other person U-
--Water Leakage Detection Unit tS-11 Unbalanced Water Completion 1 Piece Salary 17--Machine 5l Sea No. 2 Fig. 03 Fig. 1 Dob Fig. 5 Fig. 6 Fig. 7 Fig. 8

Claims (1)

[Claims] A water leak detection device that has a water leak detection unit in contact with both the equipment and the floor where the equipment is installed.