JP4218020B2 - Water leak detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water leakage detection device, and more particularly to a water leakage detection device installed under a floor near a place where water is used such as a kitchen or a washroom of an apartment house.
[0002]
[Prior art]
As a conventional water leakage detection device, for example, as disclosed in Japanese Utility Model Laid-Open No. 6-35939, a power supply battery, an alarm buzzer, a current amplification circuit, an anode sensing plate, and a cathode sensing plate are used as a case. Some of them were installed on the main body and installed on the floor where there was a risk of leaking water such as an electric washing machine or a water tank in a toilet.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned conventional water leakage detection device may be submerged due to water leakage, and may stop functioning.・ There were problems such as inability to remove.
[0004]
The present invention has been made to solve the above-described conventional problems, and the object of the present invention is to prevent submersion of at least the alarm unit, the power supply unit, and the control unit, and to issue an alarm without stopping the function. It is an object of the present invention to provide a water leakage detection device that can continue to transmit and can be easily installed and taken out from places that are out of reach such as under the floor.
[0005]
[Means for Solving the Problems]
The water leakage detection device of the present invention is a water leakage detection device in which a sensor unit made of a conductive material, a power source unit, an alarm unit or a transmission unit, and a control unit are provided on a plate-shaped device body that is a non-conductor. The sensor part is composed of two sets of plus and minus electrodes, and these two sets of plus and minus electrodes are provided on both sides of the plate-like device body, and each electrode is bent by a conductive wire. Two leg members and a grounding material that connects the tips of these leg members are formed in a U shape, and the base end of the leg member is attached and fixed to the apparatus main body. In addition, the device body which is a non-conductor is provided with a sensor unit made of a conductive material , a power source unit, an alarm unit or a transmitter unit, and a control unit, and these device body, sensor unit, power unit, alarm unit or The transmitter and the control unit are accommodated in a spherical casing made of a non-conductive material, and a weight is installed inside the spherical casing, or the casing portion in the vicinity thereof is made heavy, and the positive electrode of the sensor unit a negative electrode, characterized in that allowed position on the surface in the vicinity of the spherical housing part and. Further, the spherical casing is a sealed type. Furthermore, a sensor unit made of a conductive material , a power source unit, an alarm unit or a transmitter unit, and a control unit are provided in the device body which is a non-conductor, and these device body, sensor unit, power source unit, alarm unit are provided. Alternatively, the transmitting unit and the control unit are accommodated in an elliptical casing made of a non-conductive material, and the sensor unit is composed of two sets of positive and negative electrodes. characterized in that allowed positions respectively in a flat partial surfaces of the sides of the elliptical casing. Still further, a recovery string is attached to the apparatus main body or the casing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes an apparatus main body, which is integrally provided with a sensor unit 2, an alarm unit 3, a power supply unit 4, a control unit 5, and a floating material 6.
[0007]
The apparatus main body 1 may be any as long as the plate-like rigid non-conductive material such as plastic.
[0008]
The sensor unit 2 is made of a conductive material, and is composed of two sets of a positive electrode 2a and a negative electrode 2b. The positive electrode 2a and the negative electrode 2b are provided on both sides (upper side and lower side) of the apparatus main body 1, and each of the electrodes 2a and 2b is formed by bending a conductive wire to form two legs and their legs. the ground material connecting the tip of the wood that have been formed in a U-shape. The base end of the leg member is attached and fixed to the apparatus main body 1. The grounding material is oriented substantially parallel to the plate-like device body 1. The plus electrode 2a and the minus electrode 2b are arranged in parallel at a desired interval.
In the above embodiment, the plus electrode 2a and the minus electrode 2b are formed in a U shape and are provided on both sides of the apparatus main body 1, respectively, but may be formed in a square ring shape as a whole.
The leg material of the plus electrode 2a and the minus electrode 2b is such that each member including the apparatus main body 1 is positioned at a desired height from the floor surface (see the slab S in FIG. 2). The grounding material of the positive electrode 2a and the negative electrode 2b that has a function is in contact with the slab S, and when water leaks, the positive electrode 2a and the negative electrode 2b are electrically short-circuited. Yes.
[0009]
As long as the said alarm part 3 generate | occur | produces alarm sounds, such as a buzzer, you may use any conventionally well-known alarm means. The power supply unit 4 may be any independent power supply means such as a button battery or a dry battery. The alarm unit 3 is not necessarily installed in the apparatus main body 1, and a transmission unit may be provided in the apparatus main body 1 so as to communicate with the control unit 5 by wired or wireless means. In this case, the alarm may be visually recognizable by changing a color or moving a sign.
[0010]
The control unit 5 constitutes a control circuit for the sensor unit 2, the power supply unit 4, and the alarm unit 3. When the electrodes 2 a and 2 b are short-circuited due to leakage water, the alarm unit is powered by the power from the power supply unit 4. 3 is activated to generate an alarm.
[0011]
The float 6 is provided at the lower part of the apparatus body 1 and prevents the alarm unit 3, the power supply unit 4, the control unit 5 and the like from being submerged. The material, shape, and mounting position of the float 6 may be any as long as they have the purpose of preventing the members 3, 4, and 5 from being submerged.
[0012]
Since the water leakage detection device of the present embodiment is configured as described above, as shown in FIG. 2, water leakage occurs on the slab S under the floor, and the leakage water W causes the plus electrode 2a of the sensor unit 2 to When the negative electrode 2b is electrically short-circuited and the apparatus is switched on, an alarm sound is generated from the alarm unit 3. If you notice the warning sound, stop the water leak and cancel the warning sound.
[0013]
If water leaks without noticing the alarm sound and the water level of the leaked water W rises, the apparatus body 1 and the like are floated by the float 6 to prevent submergence, and the alarm sound continues to sound.
[0014]
FIG. 3 shows another embodiment of the water leakage detection device of the present invention. The device main body 1, the alarm unit 3, the power supply unit 4, and the control unit 5 are housed in a spherical casing 7, and the sensor unit 2 is used. Is located on the surface of the casing 7.
[0015]
The plus electrode 2a and the minus electrode 2b of the sensor unit 2 are positioned as close as possible, and a weight 8 is installed inside the casing 7 at this position, or the casing 7 portion in the vicinity thereof is made heavy. Therefore, the apparatus of the present embodiment can be easily installed in the lower part of the floor that is out of reach by rolling the spherical casing 7, and the sensor unit 2 is securely attached to the slab S by the weight 8. Can be aimed at. It should be noted that a collection string 9 may be tied to the casing 7 so that the apparatus can be pulled out and collected.
[0016]
Since the spherical casing 7 has an open type such as a mesh structure, for example, when the leaked water W enters the inside and the water level becomes high, the apparatus main body 1 and the like may be submerged. In order to prevent submergence, the float 6 is attached to the casing 7 or the apparatus body 1 or the like.
[0017]
FIG. 4 shows still another embodiment of the water leakage detection device according to the present invention. The spherical casing 7 has a sealed floating structure to prevent the leakage water W from entering. Therefore, the floating material 6 can be omitted in this embodiment. Even if the upper hemisphere portion of the spherical casing 7 has the above open structure, there is an effect of avoiding submergence. A hole may be formed in at least the top of the casing 7 so that a warning sound from the alarm unit 3 inside leaks out. Also in this embodiment, it is preferable to attach the recovery string 9.
[0018]
FIG. 5 (a) shows still another embodiment of the water leakage detection device of the present invention. The casing is an elliptical casing 10, and the sensor unit 2 is arranged on the two flat portions 10a. In the present embodiment, the sensor unit 2 can always be positioned on the floor without providing the weight 8.
[0019]
FIG. 5B shows another embodiment in which the casing is a flat rectangular casing 11 and can be stably installed.
[0020]
FIG. 6 shows an embodiment in which the sensor unit itself has a casing structure, and the sensor unit 12 includes an annular plus electrode 12a and a minus electrode 12b. The electrodes 12a and 12b are connected by a connecting material 13 made of a non-conductive material, and constitute a spherical casing as a whole. Therefore, it can be installed in a place that is out of reach, and the positive electrode 12a and the negative electrode 12b can detect any desired posture when the water level reaches a desired level. Reference numeral 14 denotes an apparatus body on which an alarm unit, a power supply unit, a control unit (not shown), and the like are mounted.
[0021]
The installation location of the device of the present invention is not limited to the above floor, for example, in a building where water leakage is expected, such as an attic where rain leakage is expected, water around a machine such as a factory, or a floor where it cannot be seen. You may install in any place if there is.
[0022]
【The invention's effect】
1) In a water leakage detection device in which a sensor unit made of a conductive material, a power source unit, an alarm unit or a transmitter unit, and a control unit are provided on a plate-shaped device body which is a non-conductor, two sets of the sensor units are provided. consisted of the positive electrode and the negative electrode, these two sets of positive electrode and negative electrode, respectively provided on both sides of the plate-shaped apparatus body, the electrodes, two and leg member by bending a conductive wire These legs are formed in a U shape with a grounding material that connects the tips of the legs, and the base ends of the legs are fixedly attached to the main body of the device. Ensure that the crosspiece is securely grounded to the floor.
2) A sensor unit made of a conductive material , a power supply unit, an alarm unit or a transmission unit, and a control unit are provided in the device body which is a non-conductor, and these device body, sensor unit, power supply unit, alarm unit or The transmitter and the control unit are accommodated in a spherical casing made of a non-conductive material, and a weight is installed inside the spherical casing, or the casing portion in the vicinity thereof is made heavy, and the positive electrode of the sensor unit and since the negative electrode was allowed position on the surface in the vicinity of the spherical housing part, also rolled at a location out of the reach of underfloor like can be reliably installed, the tip of the sensor unit is securely grounded on the floor surface To do.
3) By making the spherical casing a sealed type, it is possible to effectively prevent the apparatus from being submerged.
4) A sensor unit made of a conductive material , a power supply unit, an alarm unit or a transmission unit, and a control unit are provided in the device body which is a non-conductor, and these device body, sensor unit, power supply unit, alarm unit or The transmitter and the control unit are accommodated in an elliptical casing made of a non-conductive material, and the sensor unit is composed of two sets of positive and negative electrodes. Since they are positioned on the flat part surfaces on both sides of the oval casing, the apparatus can be installed stably and the electrodes can be securely grounded to the floor surface even if thrown into a place where the hand cannot reach such as under the floor.
5) Since the recovery string is attached to the apparatus main body or casing, the apparatus can be reliably taken out and recovered from a place out of reach.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a water leakage detection device of the present invention.
FIG. 2 is an operation explanatory diagram of the embodiment of FIG.
FIG. 3 is a block diagram showing another embodiment of the water leakage detection device of the present invention.
FIG. 4 is a configuration diagram showing another embodiment of the water leakage detection device of the present invention.
FIGS. 5A and 5B are configuration diagrams (A) and (B) showing still another embodiment of the water leakage detection device of the present invention. FIGS.
FIG. 6 is a block diagram showing still another embodiment of the water leakage detection device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Sensor part 2a Positive electrode 2b Negative electrode 3 Alarm part 4 Power supply part 5 Control part 6 Floating material 7 Spherical casing 8 Weight 9 Collection string 10 Elliptical casing 10a Flat part 11 Flat rectangular type casing S Slab W Leakage water

Claims (5)

In the water leakage detection device provided with a sensor unit made of a conductive material, a power source unit, an alarm unit or a transmitter unit, and a control unit on a plate-like device body which is a non-conductor, the sensor unit is added in two sets. It consists of an electrode and a negative electrode, and these two sets of positive electrode and negative electrode are provided on both sides of the plate-like device body, respectively, and each electrode is formed by bending a conductive wire and two legs. A water leakage detection device characterized in that it is formed in a U shape by a grounding material connecting the tip ends of the leg members, and the base end of the leg member is attached and fixed to the device main body. The device body which is a non-conductor is provided with a sensor unit made of a conductive material , a power supply unit, an alarm unit or a transmission unit, and a control unit, and these device body, sensor unit, power supply unit, alarm unit or transmission unit The control unit is housed in a spherical casing made of a non-conductive material, and a weight is installed inside the spherical casing or the casing portion in the vicinity thereof is made heavy so that the positive electrode and the negative electrode of the sensor unit are leak detection device electrodes, characterized in that allowed position on the surface in the vicinity of the spherical casing portion.   The water leakage detection device according to claim 2, wherein the spherical casing is a sealed type. The device body which is a non-conductor is provided with a sensor unit made of a conductive material , a power supply unit, an alarm unit or a transmission unit, and a control unit, and these device body, sensor unit, power supply unit, alarm unit or transmission unit And the control unit are housed in an elliptical casing made of a non-conductive material, the sensor unit is composed of two sets of positive and negative electrodes, and the two sets of positive and negative electrodes are formed in the elliptical shape. leak detection apparatus being characterized in that allowed positioned on both sides of the flat partial surfaces of the casing. The water leakage detection device according to any one of claims 1 to 4 , wherein a recovery string is attached to the device main body or the casing.

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