Latch control device

A latch control device comprising:

• a connecting seat including a first surface and two walls integrally extending perpendicularly from the first surface along a first axis, wherein the two walls are spaced from each other along a second axis perpendicular to the first axis, wherein a first notch and a second notch are formed between the two walls and are spaced from each other along a third axis perpendicular to the first and second axes, wherein a hollow portion is formed at an inner side of the two walls, and wherein a mounting portion is provided at an outer side of the two walls;
• a detecting module securely disposed in the first notch, wherein the detecting module includes an actuation member having an outer end located in the hollow portion, wherein the actuation member is configured to detect whether a latch of a door lock is in the hollow portion;
• a locking member including an axle coupling portion and an arm extending from the axle coupling portion, wherein the locking member is pivotable about a pivotal axis parallel to the second axis between a closure position closing the second notch and an open position revealing the second notch;
• a driving device securely disposed in the mounting portion of the connecting seat;
• a first restraining member coupled to the driving device, wherein the first restraining member is actuatable by the driving device between a locking position preventing pivotable movement of the locking member and an unlocking position permitting pivotable movement of the locking member, wherein the latch is restrained in the hollow portion by the first restraining member in the locking position;
• and
• a safety pin unit disposed in the mounting portion of the connecting seat, wherein the safety pin unit includes a stop pin, wherein when a fire occurs, the stop pin engages with the arm of the locking member to prevent the locking member from pivoting from the closure position to the open position, and wherein when no fire occurs, the stop pin is spaced from the arm of the locking member,
• a mounting seat including a first part parallel to the first surface and two second parts extending perpendicularly to the first part, wherein the driving device is securely disposed between the two second parts, wherein the first restraining member is slidably mounted to the first part, wherein the first restraining member further includes a leg extending perpendicularly to a displacement direction of the first restraining member;
• and
• a door detecting unit securely disposed on one of the two second parts and located adjacent to the leg, wherein when the first restraining member is in the locking position, the leg is in one of a first mode actuating the door detecting unit and a second mode not actuating the door detecting unit, and wherein when the first restraining member is in the unlocking position, the leg is in another of the first mode actuating the door detecting unit and the second mode not actuating the door detecting unit.