Five-fault preventing interlocked control circuit for maintaining grounded vehicle

The utility model discloses a five-fault preventing interlocked control circuit for maintaining a grounded vehicle, which comprises the components of: an inlet wire breaker handcart locking loop, a grounded vehicle locking loop and a segmented isolation handcart locking loop. The grounded vehicle locking loop is connected with a normally open auxiliary contact with a bus live display in series. The five-fault preventing interlocked control circuit is characterized in that: the inlet wire breaker handcart locking loop and the segmented isolation handcart locking loop are respectively connected with a normally closed auxiliary contact of a grounded vehicle locking electromagnet; the grounded vehicle locking loop is connected with a normally open auxiliary contact of the bus live display in series; realization of a grounding function through pushing the grounded vehicle when the bus is not electrified can be ensured; the inlet wire breaker handcart locking loop and the segmented isolation handcart locking loop a