| 摘要 |
A tension alert hand tool comprises a driving portion being installed with a buckling unit; the buckling unit being installed with an elastic unit; a handle being formed with a receiving groove for receiving the buckling unit and the elastic unit; a surface of the handle being formed with an through hole; and a tension alarm device having a sensor switch and an alarm unit; the sensor switch being installed in the receiving groove; the alarm unit being installed in the through hole of the handle; the sensor switch being conductive to the alarm unit; when the sensor switch is touched by the buckling unit, the sensor switch will actuate the alarm unit to light up. The tool is an opener or a spanner. The buckling unit includes an upper teethed block and a lower teethed block; and the upper teethed block is movable along the lower teethed block.
|
