| 摘要 |
The present invention relates to an overload display device for a lever block and, more specifically, to an overload display device for a lever block, capable of displaying a safe load for a lever block or preventing an overload. According to an embodiment of the present invention, the overload display device for a lever block comprises: a lever block provided with a main body part having a fastening groove, a fixing hook provided at a first side of the main body part, a moving hook connected through a rod chain at a second side opposite to the first side to give a load, and a handle part protruding from a third side adjacent to the first side and the second side and provided with a ratchet pin coupled to a latch-type gear provided on the outer circumference of the fastening groove; at least one strain gage adjoining the ratchet pin of the handle part; and a controller which receives a strain value representing the degree of twist in a peripheral region of the ratchet pin, measured by the strain gage, and which displays the strain value or externally outputs a warning signal when the strain value exceeds a reference strain value after comparing with the reference strain value. |
