Electric latch control device

An electric latch control device comprising:

• a mounting member including two pivotal seats spaced from each other, wherein each of the two pivotal seats includes a first pivotal portion, and wherein one of the two pivotal seats includes a second pivotal portion,
• a casing enclosing the mounting member and having an opening;
• a locking member pivotably mounted to the mounting member, wherein the locking member includes two pivotal portions and a locking portion between the two pivotal portions, wherein one of the two pivotal portions includes an engaging end, wherein the two pivotal portions of the locking member are pivotably connected to the first pivotal portions of the two pivotal seats, respectively, wherein the one of the two pivotal portions having the engaging end is pivotably connected to the one of the two pivotal seats having the second pivotal portion, and wherein the locking member is pivotable between a locking position closing the opening and an unlocking position revealing the opening;
• a positioning member pivotably connected to the second pivotal portion, wherein the positioning member includes a first end and a second end, wherein the positioning member is pivotable between an engagement position in which the second end engages with the engaging end and a non-engagement position in which the second end disengages from the engaging end, wherein the positioning member is in the engagement position when the locking member is in the locking position, and wherein the positioning member is in the non-engagement position when the locking member is in the unlocking position;
• a driving device securely mounted to the mounting member;
• and
• a restraining member engageable with and actuatable by the driving device, wherein the restraining member is movable between a stopping position engaged with the first end of the positioning member and a non-stopping position not engaged with the first end of the positioning member,
• wherein when the restraining member is in the stopping position, the positioning member is in the engagement position, and the locking member is in the locking position, the locking member is prevented from pivoting from the locking position to the unlocking position, and
• wherein when the restraining member is in the non-stopping position, the positioning member is in the engagement position, and the locking member is in the locking position, the locking member is pivotable from the locking position to the unlocking position.