Waterproofness checking jig for a waterproof connector

A waterproofness checking jig for holding a waterproof connector comprising a connector housing with a terminal-accommodating chamber formed therein into which a terminal attached to an end of an insulated wire has been inserted from a first side of said connector housing, said terminal-accommodating chamber having been sealed by a waterproofing rubber stopper through which said insulated wire passes, said waterproofing checking jig comprising:

• a framing;
• a sub-holding block provided at one end of said framing for supporting said first side of said connector;
• a connector-holding block provided slidable between said sub-holding block and the other end of said framing for engaging and holding in a watertight manner a second side of said connector at which said connector is fitted with a mating connector;
• an air pipeway connected to said connector-holding block for depressurizing and pressurizing said connector through said connector-holding block;
• and
• a rotatable lever provided with a toggle mechanism for moving said connector-holding block forwardly and backwardly between said sub-holding block and said the other end of said framing.