Quick-locking detonation assembly of a downhole perforating tool and method of using same

A downhole tool positionable in a wellbore penetrating a subterranean formation, the downhole tool comprising:

• a tool housing positionable in the wellbore;
• and
• at least one perforating unit positionable in the housing, each of the at least one perforating units comprising:
• a perforating housing;
• a charge assembly positioned in the perforating housing, the charge assembly having a charge chamber with shaped charges releasably supported in the charge chamber;
• and
• a detonation assembly positioned in the perforating housing, the detonation assembly comprising:
• a detonator housing having an uphole end and a downhole end and positionable in the perforating housing;
• an uphole connection and a downhole connection positioned at the uphole end and the downhole end, respectively, of the detonator housing, the downhole connection positionable adjacent the charge assembly;
• a detonator positioned in the detonator housing;
• and
• a trigger positioned in the detonator housing, the trigger comprising a detonation switch and a detonator contact, the detonation switch communicatively coupled, when in use, between a remote actuator and the detonator contact, the detonator contact positionable in the downhole connection, the detonator contact having spring-loaded arms extending through openings in the downhole connection to urge electrical contact with the charge assembly whereby an electrical connection is maintained between the detonator and the charge assembly.