Quick connect buckles come in two parts and one part passes through the other to create the connection.
Quick release buckles work by one part of the buckle being inserted into the other to make the connection and is released by pressing both sides of the buckle simultaneously.
A fire door is a complete installed assembly, also known as a fire doorset, which is constructed of fire resisting components including doorframe, door leaf/leaves with any glazing panels required, ironmongery (locks, latches, hinges, etc), intumescent seals and an automatic closing device.
It is an internal door, whose function when closed is to resist the smoke and flames of a fire for a minimum period of time, typically 30 minutes (FD30). As such, a fire door acts to create/protect an escape route through a building or compartmentalise a fire in a section of the building, to facilitate the swift and safe evacuation of people from the premises.
A fire exit is the final exit on a fire escape route through a building. The fire exit door must open easily, immediately and wherever practicable in the direction of travel, i.e. outwards, into a place of safety outside the building. A fire exit must remain unobstructed at all times and bear the appropriate signage: e.g. ‘Fire Exit – Keep Clear’.