JP3016989U - Earthquake alarm - Google Patents

Abstract

(57) [Summary] [Purpose] If a large earthquake occurs during nighttime sleep,
It is intended to provide an earthquake alarm that can be quickly evacuated. [Structure] A plate 11 which is supported horizontally by coil springs 9 and suspended on both sides, a weight 16 placed on the plate 11, and a plate 11 which rises when the weight 16 falls due to vibration. A switch 13 whose contact is turned on, a control circuit 2 connected via an optical sensor 15 connected to this switch 13, and a light bulb 4 connected to this control circuit 2.
And an alarm bell 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for turning on a light and issuing an alarm when an earthquake occurs at night.

[0002]

[Prior art]

 Earthquakes have occurred in various places recently, but in the event of a large earthquake, it is necessary to immediately evacuate to a safe place. In particular, when an earthquake occurs during nighttime sleep, it is difficult to find the switch of the electric light or to confirm the emergency exit or emergency holding exhibit because the room is dark because it is dark. In addition, when a large earthquake occurs while sleeping deeply, there is a risk that the evasion will be delayed and there will be a risk of injury due to the collapse of buildings and furniture.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above problems, and provides an earthquake alarm that can quickly evacuate when a large earthquake occurs during nighttime sleep.

[0004]

[Means for Solving the Problems]

 The present invention includes a plate that is horizontally supported by coil springs and hung on both sides, a weight that is placed on the plate, and a switch that raises the plate when the weight falls due to vibration and turns on the contacts. It is characterized by comprising a control circuit connected via an optical sensor connected to the switch, and an electric light and an alarm connected to the control circuit. Further, the present invention may have a structure in which a timer is attached to the control circuit.

[0005]

[Action]

 The earthquake alarm system of the present invention is mounted on a kamoi in a bright room, and a weight is placed on the plate. When a large earthquake occurs while the room is dark at night and a person is sleeping, the building shakes and the weight placed on the plate falls, and the plate suspended by the coil spring is pulled up by elasticity. The upper surface hits the switch, which turns on. Since the room is dark at night, the light sensor detects this and the power is on.Therefore, when the switch is turned on, the control circuit activates and the alarm bell sounds, and the light bulb lights up to illuminate the room. To do.

When a large earthquake occurs in the daytime, the weight falls from the plate, but the control circuit does not operate because the power is turned off by the optical sensor. Also, with the structure in which a timer is attached to the control circuit, even if the alarm bell rings when an earthquake occurs during the absence of nighttime, it will not stop immediately and continue to ring, so it will not bother the neighborhood.

[0007]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. In the figure, reference numeral 1 is a mounting plate, and a control circuit 2 and a socket 3 are fixed to the upper part of the front surface thereof, and a light bulb 4 is mounted on the socket 3. An alarm bell 5 is attached to the center of the mounting plate 1. On both sides of the alarm bell 5, spring supports 8 having brackets 7a and 7b mounted above and below a transparent pipe 6 are fixed. A coil spring 9 is inserted into the transparent pipe 6 of the spring support 8 and its upper end is connected to the bracket 7a. The lower end of the coil spring 9 penetrates the bracket 7b. Reference numeral 11 denotes a plate, hooks 12 are attached to both sides of the plate, and the lower end of the coil spring 9 is connected to the upper portion of the plate so that the plate 11 can be suspended and held horizontally.

A switch 13 is mounted above the plate 11 and is connected to the control circuit 2 by a lead wire 14. Further, the control circuit 2 is provided with an optical sensor 15 so that the power is cut off when it is bright in the daytime. Further, 16 is a spherical metal weight partially formed in a plane shape, which is connected to a hook 18 provided at a lower portion of the mounting plate 1 by a string 17. A transparent plastic cover 19 is mounted on the upper front side of the mounting plate 1 so as to surround the control circuit 2, the light bulb 4, and the alarm bell 5.

Mounting brackets 20, 20 are connected to the left and right upper ends of the mounting plate 1. As shown in the enlarged view of FIG. 2, the mounting bracket 20 has an inverted L-shaped metal rod 22 connected to the upper portion of a plastic pipe 21 and a threaded portion 23 formed on the lower side. A wing nut 24 is attached to the screw portion 23, and a holding block 25 made of plastic is attached to the upper portion of the wing nut 24 so as to be vertically movable.

Next, the operation of the earthquake occurrence alarm having the above structure will be described. First, adjust the wing nuts 24 of the mounting brackets 20, 20 mounted on both upper sides of the mounting plate 1, and mount it between the upper end of the inverted L-shaped metal rod 22 and the holding block 25 in a bright room (not shown) in a bright room. And tighten the wing nut 24 to secure the earthquake alarm. Next, the weight 16 is placed on the plate 11 as shown in FIG. After this, plug the cord (not shown) into the outlet and complete the setting.

When a large earthquake occurs and the building rolls or pitches at night when the room is darkened and the person is sleeping, the weight 16 placed on the plate 11 falls and the coil springs 9 and 9 The plate 11 suspended by is elastically pulled up and its upper surface hits the switch 13 to turn it on. Since the room is dark at night, the light sensor 15 detects this and the power is on. When the switch 13 is turned on, the control circuit 2 operates, the alarm bell 5 sounds, and the light bulb 4 lights up. Illuminate the room. For this reason, it is possible to immediately notify the occurrence of an earthquake, check the exit, carry an emergency exhibit, and quickly evacuate to a safe place. After the earthquake is over, it can be reset by placing the weight 16 on the plate 11.

When a large earthquake occurs in the daytime, the weight 16 falls from the plate 11, but since the optical sensor 15 turns off the power, the control circuit 2 does not operate and the alarm bell 5 is activated. The light bulb is still off without ringing. The weight of the weight 16 is adjusted according to the seismic intensity of the detected earthquake, and about 1 kg is preferable when detecting the seismic intensity of 2 to 3, and about 2 kg when detecting when the seismic intensity is 4 or more. Should be used.

The present invention may have a structure in which a timer is attached to the control circuit 2. In this case, if the timer is set to about 1 minute, the light bulb 4 will disappear immediately after the control circuit 2 is activated and the alarm bell 5 will also stop, so that it is possible to evacuate during this time and not to bother the neighborhood. Also, with the structure equipped with this timer, even if the alarm bell 5 sounds when an earthquake occurs when there is no night, it stops immediately because it does not continue to sound and does not disturb the neighborhood.

[0014]

[Effect of device]

 As described above, according to the earthquake alarm system of the present invention, when an earthquake occurs while sleeping at night, the control circuit activates and the alarm sounds, and the light bulb lights up to illuminate the room. You can immediately notify of the occurrence, check the exit, take out the emergency items, and quickly evacuate to a safe place. In addition, the structure with a timer in the control circuit does not bother the neighborhood because it will stop immediately even if the alarm bell sounds when an earthquake occurs when there is no night.

[Brief description of drawings]

FIG. 1 is a front view of an earthquake occurrence alarm in a set state according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the mounting bracket shown in FIG.

FIG. 3 is a front view showing an operating state of the earthquake alarm system shown in FIG.

[Explanation of sign]

 1 Mounting plate 2 Control circuit 3 Socket 4 Light bulb 5 Alarm bell 6 Transparent pipe 7a Bracket 8 Spring support 9 Coil spring 11 Plate 12 Hook 13 Switch 14 Lead wire 15 Optical sensor 16 Weight 17 String 18 Hook 19 Plastic cover 20 Mounting bracket 21 Plastic pipe 22 Inverted L-shaped metal rod 23 Threaded portion 24 Wing nut 25 Presser block

Claims (1)

[Scope of utility model registration request] 1. A plate having both sides suspended by a coil spring and horizontally supported, a weight placed on the plate, and a switch for raising the plate to turn on a contact when the weight falls due to vibration. An earthquake occurrence alarm characterized by comprising a control circuit connected via an optical sensor connected to the switch, and an electric light and an alarm connected to the control circuit.