Mechanical earthquake self-detection device

Abstract

The invention discloses a mechanical earthquake self-detection device which comprises an earthquake amplitude control plate, a pointed conical pendulum supporting frame, a pendulum bob and a ground fixed connecting plate. The pointed conical pendulum supporting frame is located between the earthquake amplitude control plate and the pendulum bob. The earthquake amplitude control plate, the pointed conical pendulum supporting frame and the pendulum bob are fixedly installed on the upper portion of the ground fixed connecting plate in a mutually-parallel mode. When an earthquake occurs, the pointed conical pendulum supporting frame is installed on the ground fixed connecting plate, therefore, a pointed conical pendulum will swing at the frequency same as that of the ground under the inertial effect of gravity swinging, when swinging of the pointed conical pendulum reaches the certain amplitude, a convex cone at the upper end of the pointed conical pendulum is separated from an earthquake amplitude control circular truncated cone, a pendulum bob head on the earthquake amplitude control plate loses supporting, the pendulum bob head drives a pendulum rod to drop in an overturn mode, a sector gear at the other end of the pendulum rod is in meshed transmission with a cylindrical gear externally connected with a control mechanism, a protection mechanism, connected with the cylindrical gear, in the control mechanism is driven to be started instantaneously, 360-degree earthquake wave all-dimensional automatic detection is achieved, and the prevention effect on sudden disasters is good.

Description

technical field [0001] The invention belongs to the field of earthquake detection equipment, and in particular relates to a mechanical self-detection device for earthquakes. Background technique [0002] Earthquakes mostly occur at night or during rest time, and people generally have no time to react and escape to a safer space, thus causing huge casualties. In order to reduce casualties, anti-shock beds have become a means of avoiding earthquakes. The anti-vibration bed of the prior art is connected with the earthquake detection device, and has used the mode of electric detection and chemical substance explosion reaction driving device in detecting earthquakes. [0003] In the patent 201020500705.7, a "special earthquake sensor for building anti-vibration bed" is disclosed. The sensor connects the photoelectric mouse displacement sensor with the relay, the switch delay line and the motor to form a shock measuring device. The travel switch is controlled by the photoelectric...

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Problems solved by technology

[0003] In the patent 201020500705.7, a "special earthquake sensor for building anti-vibration bed" is disclosed. The sensor connects the photoelectric mouse displacement sensor with the relay, the switch delay line and the motor to form a shock measuring device. The travel switch is controlled by the photoelectric mouse displacement sensor and the switch The method of using electric motors to reliably detect earthquakes has the disadvantage that due to the accidental nature of earthquakes and the fact that power facilities will inevitably be damaged when earthquakes occur, this method of earthquake detection not only consumes a lot of electric energy, but also greatly reduces its reliability once the power is cut off.

[0004] Invention patent 200510006514.9 describes a "shock-proof bed for buildings". The electric signal sent by the installed seismograph detonates the sodium azide, sodium nitrate, fluororubber, magnesium powder and silicon oxide in the power box. Gas is used to drive the earthquake detection device. Due to the suddenness and accidentality of earthquakes and the damage to buildings and power facilities when earthquakes occur, this earthquake detection method not only consumes a lot of electricity, but also because of chemical explosions. There is a certain explosion hazard and unreliability

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