Patent ID: 9725925
Date: 2017-08-08
CPC Classifications: E05B

Claim:
1. A door lock using a power supply of a mobile device as a power source, with the door lock configured to prevent opening of a door in a closed position, comprising: a latch device adapted to be mounted to the door and operable to be set to a locked state or an unlocked state; an inner operating device operatively connected to the latch device, with the inner operating device including a control module and a first battery module electrically connected to the control module and supplying electricity for operation of the door lock, with the inner operating device further including a detecting module electrically connected between the first battery module and the control module, with the detecting module detecting whether remaining electricity of the first battery module is higher or lower than a preset alarm value; and an outer operating device operatively connected to the latch device, with the outer operating device including a first electric connecting device electrically connected to the detecting module and an unlocking information input module electrically connected to the control module, with the first electric connecting device configured to be in electrical connection with a second electric connecting device of a mobile device having a screen, with the latch device set to the unlocked state, either of the inner operating device and the outer operating device is operable to actuate the latch device for opening the door, with the latch device set to the locked state, operation of the outer operating device for actuating the latch device for opening the door is prevented, wherein when the remaining electricity of the first battery module detected by the detecting module is higher than the preset alarm value, the first battery module supplies electricity to the door lock for operation, wherein when the remaining electricity of the first battery module detected by the detecting module is lower than the preset alarm value and the second electric connecting device of the mobile device is in electrical connection with the first electric connecting device, the second battery module of the mobile device supplies electricity to the door lock for operation.