The opening angle of the Mcwell's smoke vent skylights can be perpendicular to the roof. The effective smoke exhaust port is same with roof opening, and the smoke exhaust efficiency can be maximized. At the same time, the opening and closing of the smoke ventilator adopts the shaft linkage push window method. The electric window pusher is connected with the linkage shaft, and the linkage shaft is connected with the strut. When the window pusher is working, the strut is driven by the drive shaft to push the window sash to open. Each window has two force-bearing thrust points, the force is even, and the window sash is safe and stable after opening, and has good wind load resistance. In addition, the smoke vents' electric control has its own fire protection backup power supply and is always charged to ensure that the sunroof motor can still open the window sash normally to achieve good smoke exhaust performance in the event of an emergency power failure.

Mcwell's roof smoke vent adopts a set of pushers and shaft linkage struts to push the window.

1. Mcwell's roof smoke vent through shaft linkage struts can reduce the stroke length of the electric window pusher and shorten the opening time of the window sash. The window sash can be fully opened in 30-40s, and the smoke exhaust performance is better. Generally, triangle electric smoke ventilation from manufacturers directly use a window pusher to push the window sash. The pusher has a long push axis stroke, and the push axis travels slowly, and it takes a long time to complete the stroke to reach the window state, and some of them can’t even meet the requirements. The fire code requires 60s to be fully opened.

2. One window of the Mcwell's smoke ventilation uses a set of pushers to achieve two driving bearing points through shaft linkage, which not only ensures the uniformity of the bearing points, but also avoids directly using two sets of pushers to push the same sash. The damage caused by the asynchronous motor of the window pusher reduces the failure rate of the window pusher. At the same time, reducing the use of a set of window pushers and adding a set of linkage system, the McWay triangle sunroof products are more cost-effective.