CN2333044Y - Earthquake magnetic alarm - Google Patents

Abstract

The utility model relates to a high-sensitivity magnetic alarm for an earthquake, which comprises a detecting device, a power supply and a sound and light alarm. The detection device is composed of a permanent magnet which is arrayed in a circle and a metal ball which is hung on the central position of the magnet through a spring; a pole plate is arranged on near the magnet; the metallic ball can be additionally provided with a wing plate. When an earthquake happens, the metallic ball or the wing plate of the metallic ball is contacted with the pole plate and is sucked under the action of magnetic field; at the time, the detecting device equals to a power switch of the alarm which is switched on; therefore, sound and light alarms are emitted. The utility model has the advantages of simple structure and high sensitivity. The utility model is suitable for earthquake alarms of inhabitants, families, office buildings, etc. and can help people gain time for people to take emergency measures to avoid of a disaster of an earthquake.

Description

The magnetic force earthquake Alarm

The utility model relates to the earthquake detection HERALD equipment, mainly is a kind of novel magnetic earthquake Alarm that is used for earthquake alarm.

At present, the instrument and equipment that is used for earthquake monitoring and forecasting, mainly be some seismic record instruments that utilize electromagnetic induction principle to make, it is accurate, the seismologic record that is obtained is used for the earthquake situations analysis and prediction, and it is fit to research department and professional seismic monitoring department uses, at present, lack that a kind of suitable public uses, simple, sensitive reliable, the earthquake Alarm that is mainly used in warning usefulness before the shake of equipment.

Goal of the invention of the present utility model provides a kind of simple and practical high sensitivity magnetic force earthquake Alarm, and it is suitable for realizing earthquake alarm by being loaded on to occupy in family family, office buildings, the public activity buildings.

Summary of the invention of the present utility model is, the magnetic force earthquake Alarm, comprise earthquake detection device, power supply, warning device three parts, by lead joint detection device and warning device, be characterised in that, the earthquake detection device has shell (1), the permanent magnet (3) of rounded arrangement in it, pole plate (8) with the corresponding distribution of magnet, magnet (3) centre bit is equipped with the Metal Ball (4) that hangs by spring (5), perhaps, ball (4) installs and the corresponding metal alar plate of pole plate (8) (7) by transverse metal support plate (6).

Description of drawings

Fig. 1, the utility model pick-up unit master look synoptic diagram

Fig. 2, the utility model pick-up unit A-A cut-open view

Fig. 3, the utility model Metal Ball (4) inner chamber structural map

Details are as follows to the utility model below in conjunction with accompanying drawing:

The utility model is by the earthquake detection device, power supply can adopt direct current with acoustic-optic alarm three parts power supply or exchange, needs according to audible-visual annunciator are decided, acoustic-optic alarm can adopt existing product, also can be according to alarm range, the power demand size, assemble an acoustic-optic alarm, accompanying drawing do not draw power supply and warning device, only provide the earthquake detection device, the earthquake detection device is equivalent to a high sensitivity earthquake switch, by lead (10), (14) link to each other with power supply with acoustic-optic alarm, during earthquake, lead (10), (14) short circuit conducting makes the alarm energized, sound and light warning, for people hide earthquake disaster, take emergency measures, win the quality time.

Accompanying drawing 1 provides earthquake detection device front view, and accompanying drawing 2 is a pick-up unit A-A cut-open view, and it has shell (1), for cylindrical, heavier base is arranged at the bottom, is the permanent magnet (3) of circular arrangement in the shell, and every block of magnet is arc or bar shaped, it between permanent magnet and shell circular radome (15), the corresponding pole plate (8) that is distributed with permanent magnet has vertical metal support plate (9) to support, and its bottom links to each other, draw by outer casing bottom, connect lead (10), the permanent magnet center is by spring (5) hanging metal ball (4), and Metal Ball can be established metal alar plate (7), every block of wing plate is corresponding with every pole plate, and the vertical width of wing plate is convenient to contact and is held greater than the vertical width of pole plate, and wing plate is fixed on the Metal Ball (4) by transverse metal support plate (6), when not establishing wing plate, Metal Ball (4) volume is bigger, and during earthquake, Metal Ball itself contacts with pole plate (8), send warning, if during wing plate, the Metal Ball volume can be smaller, during earthquake, be that wing plate contacts with pole plate and sends warning, highly sensitive when wing plate is arranged.Permanent magnet can be established polylith, odevity is not limit, because of the permanent magnet center magnetic field intensity of circular arrangement is zero, so there is not when shake, it is motionless that Metal Ball will be in the center, during earthquake, whole detection device will shake with buildings, will depart from magnetic field center by spring mounted Metal Ball, the Metal Ball after departing from, to be subjected to the magnetic attraction effect, contact with pole plate and to hold, at this moment, be equivalent to lead (10) and join with (14) short circuit, make alarm work, send sound and light alarm, in order further to improve sensitivity and when the earthquake compressional wave arrives, to report to the police rapidly, Metal Ball (4) can be made as hollow, and at the Metal Ball inner bottom part one cone (11) (seeing accompanying drawing 3) is set, spring (13) is set, and hang weight (12) and do not have when shake at the ball inner top, weight (12) hangs on vertex of a cone top, garden, when shake is arranged, when particularly primary seismic wave arrives earlier, weight (12) will be suspended from circular cone one side with vibrations, strengthened the teeter of Metal Ball, sent warning so make Metal Ball or its wing plate contact with pole plate to hold.This device is heavier because of base, will and relative motion not take place with buildings vibrations synchronously, and in the hole (not shown) of the top cover or the shell wall design one band removable cover of device, after the earthquake, stretch out one's hand into the Metal Ball that will be attracted and reset into the center in the hole thus.

Embodiment, the magnetic force earthquake Alarm, by the earthquake detection device, acoustic-optic alarm and power supply three parts, couple together with lead, the earthquake detection device is equivalent to be series at the switch of warning device electric power loop, this earthquake Alarm is used as five layers of office block earthquake alarm, pick-up unit is located at one jiao in room of one deck, deadweight 15Kg, base heavily accounts for 85%, and the alarm output-parallel picks out five groups of loudspeaker or hummer, and red bulb, earthquake detection device such as accompanying drawing 1,2, shown in 3, cylinder-like shell has cylindric radome in it, 4 blocks of arc permanent magnets are arranged in it, the center of circle is symmetrically distributed relatively, and the A-A section is circular, closely by magnet, 4 arc pole plates are arranged, every is supported by vertical support plate, and the bottom links to each other each other, connects on output (10) binding post, there is binding post in shell inner top central authorities, external wire (14), in connect spring (5), the spring lower end hangs hollow metal sphere, ball welds horizontal support plate admittedly, the solid welding arc shape wing plate of support plate, totally 4, the distance size of pole plate and wing plate, should make Metal Ball more easily be stable at magnetic field center on the one hand, slightly swing when Metal Ball on the one hand, pole plate can be inhaled mutually with wing plate, produces to report to the police.Hollow metal sphere (4), its intracavity bottom is established a cone, and spring is established at its top, and hangs weight, can improve warning sensitivity.During practical operation, can adjust the length of horizontal support plate (6), require to adjust according to sensitivity, can report to the police when generally being adjusted at three grades of earthquakes gets final product.Shell wall is established a hole, and the hole resets into the center with Metal Ball thus.

Claims (2)

1, a kind of high sensitivity magnetic force earthquake Alarm, comprise the earthquake detection device, power supply and acoustic-optic alarm three parts, be characterised in that the earthquake detection device has shell (1), the permanent magnet (3) of rounded arrangement in it, pole plate (8) with the corresponding distribution of magnet, magnet (3) centre bit is equipped with the Metal Ball (4) that hangs by spring (5), and perhaps, ball (4) installs and the corresponding metal alar plate of pole plate (8) (7) by transverse metal support plate (6).

2, according to the described high sensitivity magnetic force earthquake Alarm of claim 1, it is characterized in that the vertical width of wing plate (7) is greater than the vertical width of pole plate (8); Metal Ball (4) is hollow, and its intracavity bottom is cone (11) fixedly, and interior top of chamber is established spring (13) and hung weight (12), and when static, weight is positioned at top, circular cone top.

Images