FIELD: electricity.
SUBSTANCE: invention relates to low voltage electrical appliances, more precisely, to mechanism of mechanical interlock for actuating mechanism of electric commutation equipment. Two-stage mechanical locking mechanism includes automatic disconnection unit (100), left (101) and right (104) side plates, mechanical lock assembly (102), half-axle (103), lever (105) and main shaft (106), wherein automatic disconnection unit (100), mechanical interlocking unit (102) and lever (105) are arranged between left (101) and right (104) by side plates, and semi-axle (103) and main shaft (106) are configured to pass through left (101) and right (104) side plates and protrusions thereof, automatic disconnection assembly (100), mechanical interlocking unit (102), semi-axle (103), lever (105) and main shaft (106) are configured to move in a binder; automatic disconnection unit (100) includes a disconnection clutch, on the second end of which there is a blocking surface, mechanical locking unit (102) is configured to limit automatic disconnection unit (100), automatic disconnection unit (100), mechanical interlocking unit (102) and semi-axle (103) form two-stage gate, which has high speed of response.
EFFECT: reduced effort required in manual operation.
13 cl, 22 dwg
