Compact electric connector for initiating explosive device of space electric appliance device

The utility model discloses a compact electric connector for an initiating explosive device of a space electric appliance device, which comprises a plug assembly and a signal socket assembly which are in plug-in connection, the plug assembly comprises a shell I made of a plastic material, a plug is arranged at the front end of the shell I, and the signal socket assembly comprises a shell II which is made of a plastic material. A jack seat matched with the plug is arranged on the rear end surface of the shell II; the shell I is connected with a lock catch rod which overhangs forwards, the rear end body of the shell II is provided with a wedge-shaped clamping head with a small front part and a large rear part, when the plug is inserted into the jack seat, the wedge-shaped clamping head expands the lock catch rod to enable the lock catch rod to elastically deform, and when the plug is inserted into the jack seat, the lock catch rod elastically returns and is buckled on the wedge-shaped clamping head to lock the