JPH09229760A - Earthquake sensor and earthquake sensor-connected leakage breaker apparatus using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earthquake sensor which can be installed near an operator and which is suitable for always confirming the operator's mental attitude toward an earthquake and to provide an earthquake sensor-connected leakage breaker apparatus which cuts off an indoor interconnection when an earthquake is generated and which prevents an accident due to electricity or the generation of a fire. SOLUTION: The earthquake sensor is provided with a conductive shaft 1, with a rocking part 2 which is supported by the shaft, which is rocked freely, which is conductive and which is substantially umbrella-shaped and with display parts 3a, 3b,... which are insulated from the shaft and the rocking part, which are conductive, in which detection points 31, 32,... are arranged at equal intervals and which correspond to the respective detection points, and it is composed of a detection part 3 which detects the contact of the rocking part 2. Then, the earthquake sensor-connected leakage breaker apparatus in which the earthquake sensor is connected to an earth-leakage breaker 5 which can detect the direction of a rocking operation at the initial stage of the detection of the rocking operation and which is arranged and installed at an indoor interconnection cuts off the leakage breaker when the rocking part 2 comes into contact with the detection part 3. As a result, when an earthquake is generated, the indoor interconnection is cut off immediately, and it is possible to prevent an accident due to electricity or the generation of a fire due to the short circuit of the indoor interconnection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic sensor and an earth leakage breaker device using the seismic sensor, and more particularly to an seismic sensor for detecting the direction of shaking at the initial stage of shaking detection, and a shaking sensor using the seismic sensor. It is related to an earth leakage breaker device connected to an earthquake sensor that disconnects the earth leakage breaker when it is detected.

[0002]

Prediction of earthquake occurrence is currently difficult. However, because many earthquakes occur every year in various parts of the country,
In order to minimize damage, each household, company, and municipality should stockpile food, water, medicines, etc., prevent furniture and equipment from falling, check evacuation methods, prepare emergency items, etc. ing.

When a large earthquake occurs, it is necessary to sense the shaking and take immediate action to suppress the damage before the announcement by the Japan Meteorological Agency or the news reports on TV, radio and the like. The damage caused by an earthquake varies depending on the scale and area of damage, collapse, injury, etc., but it is cautioned that a fire will increase the damage. "If the earthquake strikes, turn off the fire."
Is widely known to people. For this reason, heating appliances that use gas or oil, and heating tools that use gas are also available on the market with a structure that automatically stops the fire when vibration is caught.

[0004]

[Problems to be Solved by the Invention] To prevent fires by detecting vibrations in individual appliances that are prone to fire in an earthquake and stopping their function. People also "can extinguish a fire when an earthquake strikes."
However, there are no products that can be switched off by an earthquake except for some infrared heating stoves, and there were cases where overheating caused a fire. People are always near by the processing machines (drilling machines, presses, welding machines, electric hammers, cutting tools, etc.) used not only at home but also in town plants that are not fully automatic, but in the event of an earthquake , There is a great risk of contacting a moving machine, and it is desirable to cut off the supply of electricity.

Further, in a large earthquake, indoor wiring wired in the home may be cut and short-circuited to cause a fire. However, at the time of an earthquake, it is very unlikely to break a breaker installed at a high place in a home or factory. Moreover, the seismograph is a special one, and the places where it is installed are very limited. In the case where a relatively small earthquake can cause special response actions, it is not clear where the epicenter is until the announcement by the Japan Meteorological Agency on TV or radio. If there is no earthquake nearby for a while, the preparation for the earthquake tends to be neglected. Therefore, if an earthquake sensor is available at hand, even small earthquakes can be caught nearby, and it will be necessary to constantly check for earthquakes.

The present invention provides a seismic sensor which is suitable for constantly confirming the attitude toward an earthquake and which can be installed in a familiar place.
And connect this seismic sensor to the earth leakage breaker of each house,
It is intended to provide an earth leakage breaker device connected to an earthquake sensor, which can quickly shut off indoor wiring when an earthquake occurs to prevent a fire from occurring due to a short-circuit of an electric appliance or indoor wiring.

[0007]

In order to achieve the above object, the seismic sensor of the present invention comprises a conductive shaft, a swingable and swingable conductive support supported by the shaft, and the shaft and the swinging part. And a conductive detecting part which is insulated from the contact part and detects contact of the swinging part. The oscillating portion of the seismic sensor of the present invention is substantially in the shape of an umbrella, and the detecting portion is provided with detection points arranged at equal intervals and corresponding to each detecting point.

The earth leakage breaker device connected to the seismic sensor of the present invention detects a contact of the conductive shaft, the swingable part supported by the shaft and swingable and conductive, and insulated from the shaft and the swinging part. It consists of an earthquake sensor consisting of a conductive detector, and an earth leakage breaker that is arranged on the indoor wiring drawn into each door and cuts when the rocker contacts the detector. Furthermore, in the earth leakage breaker device connected to the earthquake sensor of the present invention, the swinging portion is substantially in the shape of an umbrella, the detecting portions are provided with the detecting points arranged at equal intervals, and the detecting portion is provided with a display portion corresponding to each detecting point. Seismic sensor is adopted.

The seismic sensor of the present invention can detect the direction of the shaking in the early stage of the shaking detection with the above structure and can be installed near us. It is suitable for confirming the preparedness for each small earthquake with a familiar earthquake sensor. INDUSTRIAL APPLICABILITY The seismic sensor-connected earth leakage breaker device of the present invention can quickly shut off indoor wiring when an earthquake occurs, and prevent a fire from occurring due to a short-circuit in an electric appliance or indoor wiring.

[0010]

Embodiments of the present invention will be described below. FIG.
As shown in (b), the seismic sensor S according to the present invention is provided with an electrically conductive shaft 1, an oscillating portion 2 supported by the shaft 1 and swingable and electrically conductive, and insulated from the shaft 1 and the oscillating portion 2. As described above, the shaft 1 and the oscillating portion 2 are disposed via the gap 13 and the gap 23, and the conductive detecting portion 3 detects the contact of the oscillating portion 2 and is protected by the cover 9. .

The oscillating portion 2 has a substantially umbrella shape. Further, the detection unit 3 may be the full-face detection type shown in FIG. 1A, or the detection points 31, at even intervals as shown in FIGS.
32, ..., 38 are arranged, and the respective detection points 31, 3 are
The display units 3a, 3b, ..., 3h corresponding to 2, ..., 38 are provided. At this time, the conductive detection points 31, 32,
, 38 are arranged on the non-conductive base 30 by wiring.

As shown in FIG. 1D, the conductive shaft 1 is fixed to the conductive base 10 by screwing or gluing.
As shown in FIG. 1A, a detection unit 3 is provided on the base 10 with an insulating material 11 interposed therebetween. Conductive wires 10L and 3L are respectively connected to the conductive base 10 and the conductive detection unit 3, and the conductive wires 10L and 3L are connected to a power source (battery or the like).
A hole 39 is formed in the center of the detection unit 3, and
It forms a gap 13 that separates it from.

The detection sensitivity of the detection unit 3 is adjusted by adjusting the gap 23 between the oscillating unit 2 and the detection unit 3. If the gap 23 is reduced, weaker vibration can be detected. It should be noted that the shaft 1, the oscillating portion 2, and the detecting portion 3 which are all conductive are connected to the detecting portion 3 when the oscillating portion 2 comes into contact with the detecting portion 3 even if the whole is not conductive. Conductor 3
A circuit from L to the detection unit 3 to the swing unit 2 to the shaft 1 to the base 10 to the conductor 10L connected to the base 10 may be formed. For example, the core-corresponding portion of the shaft 1 is conductive and the outer peripheral portion is A non-conductive member may be partially used, such as a non-conductive member.

As shown in FIG. 2, the detection unit 3 has detection points 31, 32, ..., 38 arranged at 45 ° intervals obtained by dividing 360 ° into eight equal parts, such as north, south, east, and west. , 3h are arranged as display portions corresponding to the respective detection points 31, 32, ..., 38. Opposing detection points 31 and 35 are connected in series to corresponding miniature electric bulbs 3a and 3e. Similarly, opposite detection points 32 and 36 are corresponding miniature electric bulbs 3b and 3f, and detection points 33 and 37 are the same. Detection points 3 on the corresponding miniature bulbs 3c and 3g
4 and 38 are connected in series to the corresponding miniature bulbs 3d and 3h.

In FIG. 2, detection points 31, 3 are shown for the purpose of explanation of wiring.
, 38 are separated from the miniature light bulbs 3a, 3b, ..., 3h, but they are all arranged on the surface of the base 30 of the detection unit 3 as shown in FIG. If you increase the number of these detection points and the corresponding miniature bulbs, the accuracy of earthquake direction detection will increase,
For general household use, 45 ° 8 divisions are preferable.

As the display unit, miniature bulbs 3a, 3b, ..., 3
Although h is shown, the display units 3a, 3b corresponding to the respective detection points,
... With a voice input in advance from a speaker (not shown) connected to 3h (for example, "south-north", "northeast-southwest").
It is also preferable to notify the same. As shown in FIG. 3, the indoor wiring 4 drawn from the service wire to each door through the electricity meter is connected to the earth leakage breaker 5 through the ampere breaker arranged in the distribution board, and the earth leakage breaker 5 branches into a branch circuit. Electrical appliances are connected to the wiring used by each safety breaker.

The seismic sensor-connected earth leakage breaker device according to the present invention is the earth leakage breaker 5 shown in FIG. 3 with the seismic sensor S according to the present invention incorporated therein. 10L, 3 connected to
L is connected to the earth leakage breaker 5. The oscillating portion 2 of the seismic sensor S has a substantially umbrella shape, and the detecting portion 3 is the full-face detection type shown in FIG.
The detection points 31, 3 are equally spaced as shown in (c) and (d).
A mold in which 2, ..., 38 are arranged is adopted.

As shown in FIG. 1A, a conductive wire 10L connected to a conductive rocking portion 2 of an earthquake sensor via a conductive shaft 1 and a conductive base 10 and a conductive detecting portion. The conductor 3L connected to 3 is connected to both ends of the test switch TB of the earth leakage breaker 5, respectively. A switch SW may be connected in the middle of the earth leakage breaker 5 with the conductor 3L or the conductor 10L so that the seismic sensor S and the test switch TB can be separated.

As is well known, the earth leakage breaker 5 is provided with a trip coil 51, an amplifying section 52, a test switch TB, a zero-phase current transformer 54, and a secondary winding 53.
Is connected to the ampere breaker, and each electric appliance is connected to the load side. The operation of the earthquake sensor and the earthquake sensor-connected earth leakage breaker device of the present invention will be described below.

The seismic sensor S according to the present invention is installed in a place where vibration is less likely to occur in the home and connects the conducting wire 3L and the conducting wire 10L to the battery (FIG. 2). Detection points 3 at equal intervals
When a mold in which 1, 32, ..., 38 are arranged is adopted,
If the miniature bulb 3a corresponding to the detection point 31 is displayed as north, the detection point 31 (and the miniature bulb 3a) is placed at the north of the azimuth magnetic needle during installation.

When an earthquake occurs, the table 10 starts to shake, and the table 10
The umbrella-shaped swinging part 2 supported by the tip 12 of the shaft 1 fixed to the shaft vibrates as shown by the arrow in FIG. When the oscillating portion 2 shown in FIG. 2 contacts any of the detection points, the conductive wire 10L to
Shaft 1-oscillation portion 2-detection portion 3 (for example, 33) -conductor wire 3L-
A power supply-lead wire 10L circuit is formed, and the corresponding miniature bulb 3
c lights up. When the rocking | swiveling part 2 contacts the detection point 33, the rocking | swiveling part 2 contacts the detection point 37 continuously, and similarly the corresponding miniature bulb 3g lights.

In the case of horizontal vibration, for example, if there is a seismic wave from the southeast to the northwest, the umbrella-shaped rocking portion 2 repeats contact with the detection points 34 and 38 indicating the southeast and northwest of the detection portion 3. Regardless of whether the oscillating portion 2 contacts the detection points 34 or 38, the miniature bulb 3
Since d and 3h are lit, it can be known that the direction of the earthquake is southeast-northwest. Seismic waves in other directions are similarly detected by miniature bulbs corresponding to the respective detection points. When the vibration becomes severe, the swing unit 2 rotates about the shaft 1 as a fulcrum and also contacts the other detection points of the detection unit 3, so that the direction of the earthquake can be easily confirmed at the initial stage of the shake.

As described above, every time an earthquake is felt, by confirming it with the earthquake sensor at home, the interest in the earthquake is always maintained, and the earthquake countermeasures can be ensured. Since the seismic sensor according to the present invention can be downsized to around 3 cm × 3 cm × 3 cm, it can be installed in various places by incorporating it into a tableware, a doll, or other commonly-observed object. When the detection unit 3 is of a type having detection points at equal intervals, it suffices to match the orientation of the detection points with the magnetic needle.

The seismic sensor S according to the present invention having not only the type having the detection points at equal intervals but also the detection part 3 of the whole surface detection type is installed in a mountain road or a tunnel where the danger of falling rocks and rocks is expected, Lead wire 3L, 10L connected to the power supply
Is extended and connected to an indicator such as a blinking indicator used at the entrance of a tunnel (not shown), and this blinking indicator is placed at the entrance of a tunnel or a mountain road, etc. Since the vibration near the rock fall is displayed quickly with a blinking display, etc., it is possible to prevent a large-scale rock fall and a large accident due to a rock fall.

Further, in the seismic sensor connected earth leakage breaker device according to the present invention, it is preferable that the detection portion 3 is of the whole surface detection type and is installed in a place where the influence of vibration is small, and the conductor 3L and the conductor 10L are connected to the earth leakage breaker 5. Test switch TB
Are connected to both ends. When there is an earthquake, the earthquake sensor S operates as described above, and the earth leakage breaker 5 to the lead wire 3L
-Detection unit 3-Umbrella-shaped swinging unit 2-Shaft 1-Conductive base 10-
A circuit of the conductive wire 10L to the earth leakage breaker 5 is formed. At this time, the current flowing through the primary coil 55 changes, and the current flowing through the secondary coil 53 via the zero-phase current transformer 54 changes the current flowing through the secondary coil 53.
The trip coil 51, which is amplified when the current exceeds the specified value, operates, the leakage breaker 5 is cut off, and no current is supplied to the indoor wiring.

When the detection unit 3 is of a type in which detection points at equal intervals are arranged, the azimuth is set along with the magnetic needle.
When there is an earthquake, the earthquake sensor S operates as described above, detects the direction of the shaking, and the earth leakage breaker 5 is cut off.
No electric current is supplied to the indoor wiring. In this way, it is possible to quickly shut off the indoor wiring, prevent a fire from occurring due to a short-circuit of an electric appliance or indoor wiring, and stop an electric tool at a town factory or the like to prevent an accident.

[0027]

As is apparent from the above description, according to the present invention, the conductive shaft, the swingable and swingable conductive part supported by the shaft, and the shaft and the swinging part are insulated from each other. And a conductive detecting portion for detecting contact of the swinging portion, and the swinging portion substantially forms an umbrella shape, and the detecting portion has detection points arranged at equal intervals and each detecting point Since it has a display unit corresponding to, the direction of the shaking can be detected in the initial stage of the shaking detection,
It can be installed close to us, and it is suitable for checking the preparedness for an earthquake with a nearby earthquake sensor, and if it is installed in a dangerous place, it is possible to prevent a subsequent major accident.

Further, the earthquake sensor-connected earth leakage breaker device of the present invention connects the earth seismic sensor described above to the earth leakage breaker arranged in the indoor wiring drawn into each door, and when the rocking portion comes into contact with the detection portion. Since the earth leakage breaker is cut off, it is possible to quickly shut off the indoor wiring when an earthquake occurs to prevent an accident caused by an electric power tool and a fire caused by a short circuit of an electric appliance or indoor wiring.

[Brief description of drawings]

1A is a diagram illustrating an earthquake sensor and an earth leakage breaker device connected to an earthquake sensor according to the present invention, FIG. 1B is a diagram illustrating an earthquake sensor according to the present invention, and FIGS. FIG.

FIG. 2 is a diagram illustrating a detection unit of the earthquake sensor according to the present invention.

FIG. 3 is a diagram illustrating an earth leakage breaker to which an earthquake sensor according to the present invention is connected.

[Explanation of symbols]

 1 ... Shaft 2 ... Oscillating part 3 ... Detecting part 4 ... Indoor wiring 5 ... Leakage breaker 13, 23 ... Gap 31, 32, ..., 38 ... Detection point 3a, 3b, ... 3h ... Display part 9 ... Cover

Claims (4)

[Claims] 1. A contact between an electrically conductive shaft (1), an oscillating part (2) which is supported by the shaft and is swingable and electrically conductive, and which is insulated from the shaft and the oscillating part. A seismic sensor, comprising: a conductive detection part (3) for detecting 2. The oscillating portion has a substantially umbrella shape, and the detecting portion has detection points (31, 32, ..., 38) arranged at equal intervals and corresponds to each of the detection points. Display (3
The seismic sensor according to claim 1, further comprising: a, 3b, ..., 3h). 3. A conductive shaft (1), a swingable (2) conductive swingable part (2) supported by the shaft, and a contact of the swingable part which is insulated from the shaft and the swingable part. A seismic sensor comprising a conductive detection part (3), and an earth leakage breaker (5) which is arranged on the indoor wiring (4) drawn into each door and cuts when the swing part comes into contact with the detection part. An earth leakage breaker device connected to an earthquake sensor. 4. The oscillating portion has a substantially umbrella shape, and the detecting portion has detection points (31, 32, ..., 38) arranged at equal intervals and corresponds to each of the detection points. Display (3
a), 3b, ..., 3h) are provided.