Authorization Announcement Number:CN 223428019 U 

Authorization Announcement Date:Oct 10^th,2025

This utility model discloses a hand-crank mechanism and Low Voltage Draw-out Switchgear,The hand-crank mechanism includes a hand-crank structure, locking parts, and a transfer structure,The hand-crank mechanism includes a hand-crank assembly and a threaded sleeve, which are designed to engage or disengage under external force.

The transfer structure includes a reset component and an adjustment component. The reset component is located between the hand-crank assembly and the locking component. When the hand-crank assembly and the screw sleeve are separated, the reset component is adapted to drive the locking component into the locked status

The adjustment component is located on the screw sleeve. When the hand crank assembly engages with the screw sleeve, the adjustment component is adapted to abut against the locking component, forcing the locking component to transition from the locked state to the released state. This hand crank mechanism, with the structure described above, prevents the hand crank assembly from rotating freely when not engaged with the screw sleeve and ensures that the drawer is fully connected to the low voltage withdrawable swtichgear.