A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An anti-theft alarm entrance guard device of an intelligent housing system comprises an alarm circuit and an alarm triggering structure. The alarm triggering structure comprises a triggering disc (2), a cavity (2-4) is disposed on the triggering disc (2), a switch disc (2-13) is arranged inside the cavity (2-4) and is provided with an inclined face (2-9), the inclined face (2-9) coordinates with a key through hole (2-3) disposed inside the cavity, a rotating shaft (2-4-1) is arranged inside the cavity (2-4), a shaft hole (2-8) is disposed in the center of the switch disc (2-13), the rotating shaft (2-4-1) coordinates with the shaft hole (2-8), a compressed spring is disposed between a side face (2-14) of the switch disc (2-13) and a side face (2-15) of the cavity, an electrode (2-11) is arranged on the side face (2-14) of the switch disc (2-13), a contact (2-5) coordinating with the electrode (2-11) is arranged in the side wall of the cavity, and contact and break-off states of the electrode (2-11) and the contact (2-5) serve as power switch states of the alarm circuit.
An anti-theft alarm entrance guard device of an intelligent housing system comprises an alarm circuit and an alarm triggering structure. The alarm triggering structure comprises a triggering disc (2), a cavity (2-4) is disposed on the triggering disc (2), a switch disc (2-13) is arranged inside the cavity (2-4) and is provided with an inclined face (2-9), the inclined face (2-9) coordinates with a key through hole (2-3) disposed inside the cavity, a rotating shaft (2-4-1) is arranged inside the cavity (2-4), a shaft hole (2-8) is disposed in the center of the switch disc (2-13), the rotating shaft (2-4-1) coordinates with the shaft hole (2-8), a compressed spring is disposed between a side face (2-14) of the switch disc (2-13) and a side face (2-15) of the cavity, an electrode (2-11) is arranged on the side face (2-14) of the switch disc (2-13), a contact (2-5) coordinating with the electrode (2-11) is arranged in the side wall of the cavity, and contact and break-off states of the electrode (2-11) and the contact (2-5) serve as power switch states of the alarm circuit.
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