Panic device with door closer

A panic bar with a door closer, the panic bar having a locking device installed at a front end of a case and a door closer provided at a rear end of the case, wherein the locking device is released upon pushing of a push bar provided in the case,

• wherein an air cylinder is installed inside the case;
• wherein a guide member is installed in one side of the air cylinder and a cylinder sealing cap is installed in the other side of the air cylinder;
• wherein one side of a piston rod having a piston for compressing and expanding air inside the air cylinder passes through the guide member;
• wherein a spring disposed between the piston and the guide member is installed on the piston rod;
• wherein a main link hinge-coupled to one side of the piston rod is installed in the guide member;
• wherein a hinge assembly having a main hinge hinge-coupled to the main link is inserted into and installed at a vertical bar of a door frame of a door;
• wherein an inflow check valve for allowing external air to flow in one direction into the air cylinder is installed at the cylinder sealing cap;
• and
• wherein a pressure control valve for allowing air inside the air cylinder to flow to the outside when internal air pressure inside the air cylinder is at a predetermined pressure or higher is installed at the cylinder sealing cap.