| 摘要 |
The present invention is to provide an external displacement sensing unit of a quick coupler to enable to sense a change in physical pressure generating in the selected environment, and to check the sensed pressure by transferring the change of the sensed pressure to a determined position. The external displacement sensing unit of the quick coupler comprises: a driver (3) applied with an elastic force by an elastomer (2) moving in accordance to the changed pressure applied externally; and a connector (4) connected to the driver (3) wherein the position of an end is moved in accordance to the positional movement of the driver (3). The external displacement sensing unit of the quick coupler is configured to sense the intensity of the pressure to be applied to the driver (3) by sensing the change in a moving distance by the pressure on one side of the driver (3). |
