Wireless transmission system used for a self-locking lock box
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United States of America Patent
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Sep 18, 2018
Grant Date -
N/A
app pub date -
Nov 2, 2017
filing date -
Nov 2, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A wireless transmission system used for a self-locking lock box has a first transmission unit received in a first insert hole of a door frame, and a self-locking lock box secured at a door plank. The self-locking lock box is provided therein with a square bolt able to eject out of the lock box, and the square bolt is connected with a control pin and has its front end fixed with a second transmission unit. By so designing, when a user closes the door plank, the control pin will be pressed by the door frame and release the square bolt to make the square bolt eject out of the self-locking lock box and get into the first insert hole of the door frame, thus enabling the first transmission unit to approach the second transmission unit for elevating transmission efficiency.
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