Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a chain type automatic alarm lock. The chain type automatic alarm lock is characterized by comprising a built-in chain, a built-in line I, a built-in line 2, a common chain leather sheath, a tapered end built-in alarm device and an electronic relay, wherein the line I is not connected with the alarm device, but the chain connecting current flows through the line I; the line II is connected with the alarm device, but the current cannot flows through the line II; in the case of a theft, the chain is cut off, and the line I is cut off too, so that the current is changed to flow through the line II, and the alarm device is electrified to give an alarm. With adoption of the arrangement, the product is simple, practical, convenient and theft-proof; the chain type automatic alarm lock has the advantage of the chained lock which can be used for fixing a small vehicle on an immovable building, further has the advantage of giving the alarm to people by the alarm device, and meanwhile solves the defect that the alarm device is too sensitive to accurately give the alarm.
The invention provides a chain type automatic alarm lock. The chain type automatic alarm lock is characterized by comprising a built-in chain, a built-in line I, a built-in line 2, a common chain leather sheath, a tapered end built-in alarm device and an electronic relay, wherein the line I is not connected with the alarm device, but the chain connecting current flows through the line I; the line II is connected with the alarm device, but the current cannot flows through the line II; in the case of a theft, the chain is cut off, and the line I is cut off too, so that the current is changed to flow through the line II, and the alarm device is electrified to give an alarm. With adoption of the arrangement, the product is simple, practical, convenient and theft-proof; the chain type automatic alarm lock has the advantage of the chained lock which can be used for fixing a small vehicle on an immovable building, further has the advantage of giving the alarm to people by the alarm device, and meanwhile solves the defect that the alarm device is too sensitive to accurately give the alarm.