Patent ID: 11876355
Assignee: JIANGSU LUOKAI MECHANICAL AND ELECTRICAL CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The electric switching apparatus according to claim 9, wherein the breaker body exits the drawer apparatus, and sequentially passes through the connected and clamped position, the connected but not clamped position, the trial position and the separation position;
in the connected and clamped position, the drawer push rod is located at the release position under the action of the push rod spring, the tripping rod is released, and the breaker body can be switched on;
moving from the connected and clamped position to the connected but not clamped position, the breaker body does not move, the interlocking plate rotates along with the supporting plate and is in touch with the inclined trigger rod of the drawer push rod, the drawer push rod rotates from the release position to the interlocking position under an action of the interlocking plate, the horizontal interlocking rod of the drawer push rod locks the tripping rod, and the breaker body cannot be switched on;
moving from the connected but not clamped position to the trial position, the breaker body moves towards the outer side of the drawer apparatus, the tripping rod is separated from the horizontal interlocking rod of the drawer push rod but continues to be locked by the another one of the protruding interlocking parts at the inner side end of the drawer interlocking piece, the breaker body cannot be switched on, the breaker body moves to the trial position, the tripping rod enters the concave releasing part in the middle of the drawer interlocking piece, the tripping rod is released, and the breaker body can be switched on; and
moving from the trial position to the separation position, the breaker body moves towards the outer side of the drawer apparatus, the tripping rod disengages from the concave releasing part of the drawer interlocking piece and is locked by the one of the protruding interlocking parts at the outer side end of the drawer interlocking piece, and the breaker body cannot be switched on.