US 11,887,425 B2
Entry/exit detection locking device
Te-Yu Chen, Pingtung (TW)
Filed by Te-Yu Chen, Pingtung (TW)
Filed on Apr. 23, 2021, as Appl. No. 17/238,222.
Prior Publication US 2022/0343711 A1, Oct. 27, 2022
Int. Cl. E05B 63/08 (2006.01); G07C 9/29 (2020.01); E05B 63/18 (2006.01); E05B 47/00 (2006.01)
CPC G07C 9/29 (2020.01) [E05B 47/0001 (2013.01); E05B 63/08 (2013.01); E05B 2047/0073 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An entry/exit detection locking device, comprising:
a knob axle, which comprises an inner rotary axle and an outer rotary axle stacked on each other, the inner rotary axle and the outer rotary axle being each formed with a notch;
an engaging and holding unit, which is arranged at one side of the knob axle and is in connection with a card reader installed at an indoor site and an outdoor site, the engaging and holding unit comprising an engaging bar, the engaging bar being adjustable to selectively engage with the notch of the inner rotary axle of the knob axle or the notch of the outer rotary axle of the knob axle, wherein upon detecting a correct card swiping signal by the card reader, the engaging bar is driven to move backward to disengage from the notch or the inner rotary axle or the notch of the outer rotary axle; and
a detection unit, which is arranged below the knob axle and comprises a base, a shaft, a first wing-shape spring plate, and a second wing-shape spring plate, wherein the base comprises a first micro switch and a second micro switch, the first wing-shape spring plate defines a first end configured to be contacted by the inner rotary axle, a second end configured to contact the first micro switch, and the first central connection portion, and the second wing-shape spring plate defines a first end configured to be contacted by the outer rotary axle, a second end configured to contact the second micro switch, and a second central connecting portion, wherein the first and second central connecting portions being fit to and attached to the shaft and located above the base, the first micro switch and the second micro switch being in connection with a monitor and control center;
wherein in an event that a person attempts to exit or enter by rotating the knob axle, the first micro switch or the second micro switch of the detection unit is triggered to initiate recording of the exit or entry and are operable in combination with the engaging and holding unit in connection with the card readers for enabling unlocking by means of card swiping to realize intelligent doorway access control.