Door unlocking device

Abstract

The invention discloses a door unlocking device. The door unlocking device is characterized in that a rotary knob gear is fixedly installed on a counter lock rotary knob on the inner side of an entrance door and can rotate with the rotary knob together. A handle gear is fixedly installed on a door handle rotation shaft on the inner side of the entrance door. Two sector gears are installed on a rotary knob motor and a handle motor rotation shaft respectively and can mesh with the rotary knob gear and the handle gear respectively. A data line socket is connected with the password input end of an electronic password control unit. The output end of the electronic password control unit is connected with the control end of a relay. A power socket is connected with the common end of the relay, the power input end of the electronic password control unit and the power input end of an alerter. A normally open contact of the relay is connected with the rotary knob motor and a handle motor. The output end of the electronic password control unit is connected with the data line socket. A power source is connected with a power plug and the power input end of the electronic password control unit.

Description

technical field [0001] The invention relates to a door-opening lock device, in particular to a door-opening lock device for smoothly opening an entrance door when an elderly living alone who is suddenly ill at home is rescued in an emergency. Background technique [0002] Nowadays, many parents live separately from their married children, especially some old people who have lost their spouse live alone, which is the so-called old people living alone. The phenomenon of the elderly living alone is now and will be more common in the future. The number of elderly people living alone is increasing, which has created some problems: when the elderly living alone suddenly fall ill at home and cannot help themselves, it is not easy to be found, delaying rescue, and causing serious consequences. Although some places have taken some measures to send out emergency distress signals when the elderly living alone suffer from sudden illness, rescuers can rush to carry out the rescue, but o...

AI Technical Summary

Problems solved by technology

The number of elderly people living alone is increasing, which creates some problems: when the elderly living alone suffer from a sudden illness at home, they are not easy to be found, delaying rescue, and causing serious consequences

Although some places have taken some measures to send out emergency distress signals when the elderly living alone suffer from sudden illness, rescuers can rush to carry out the rescue, but often because the elderly living alone have no ability to open the door after the sudden onset of illness, the rescuers cannot enter the door. Unable to enter the house, especially at night, many people are used to locking the door for safety

In this case, the door lock cannot be opened from the outside with the key, so the method of breaking down the door is generally used to enter, but the time is relatively long and the rescue is delayed.

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