Heavy duty lock case

A heavy duty lock case comprising:

• a case body;
• a latch movably coupled to the case body and movable between a latching position and an unlatching position;
• an anti-pick member pivotably mounted to the case body, wherein the anti-pick member is pivotable between an anti-pick position and a non-anti-pick position;
• an anti-pick latch movably coupled to the case body and operatively connected to the latch and the anti-pick member, wherein the anti-pick latch is movable between an extended position and a retracted position, wherein when the anti-pick latch is in the extended position, the anti-pick member remains in the non-anti-pick position, and wherein when the anti-pick latch is in the retracted position, the anti-pick member is pivotable to the anti-pick position;
• a connecting member pivotably connected to the case body and operatively connected to the latch and the anti-pick member, wherein pivotal movement of the connecting member actuates the latch to move between the latching position and the unlatching position and is capable of actuating the anti-pick member to move between the anti-pick position and the non-anti-pick position, wherein when the latch is in the unlatching position, the anti-pick member is in the non-anti-pick position, and the anti-pick latch is in the extended position or the retracted position, wherein when the latch is in the latching position and the anti-pick latch is in the extended position, the latch is movable from the latching position to the unlatching position without pivoting the connecting member, wherein when the latch is in the latching position, the anti-pick latch is in the retracted position, and the anti-pick member is in the anti-pick position, the latch is prevented from moving from the latching position to the unlatching position, and wherein with the latch in the latching position, the anti-pick member in the retracted position, and the anti-pick member in the anti-pick position, when the connecting member pivots, the connecting member actuates the anti-pick member to move to the non-anti-pick position and then actuates the latch to move to the latching position;
• an anti-theft latch movably coupled with the case body, wherein the anti-theft latch includes a plurality of latch heads, wherein the anti-theft latch is movable between an anti-theft position and a non-anti-theft position;
• an unlocking spring movably received in the case body and biasing the anti-theft latch towards the non-anti-theft position;
• a slidable locking block movably received in the case body, wherein when the slidable locking block engages with the anti-theft latch, the slidable locking block retains the anti-theft latch in one of the anti-theft position and the non-anti-theft position, and wherein when the slidable locking block disengages from the anti-theft latch, the anti-theft latch is permitted to move to the anti-theft position and the non-anti-theft position;
• and
• an unlocking member pivotably received in the case body, wherein the unlocking member includes an actuating end interlocked with the slidable locking block and an interlocking end, wherein the connecting member further includes an unlocking arm abutting the interlocking end, wherein with the anti-theft latch in the anti-theft position and with pivotal movement of the connecting member actuating the latch to move towards the unlatching position, the unlocking arm presses against and pivots the unlocking member, the slidable locking block disengages from the anti-theft latch, and the unlocking spring biases the anti-theft latch to move to the non-anti-theft position.