Building Sliding Door Fire Barrier for Wall Cavity Sealing
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Solution Overview
Problem
Existing building sliding doors do not adequately meet stringent requirements for noise and fire protection, particularly in environments requiring enhanced fire and smoke barriers.
Innovation Solution
A building sliding door system with a frame structure, an electromechanical drive unit, and a fire protection unit comprising a bracket and a fire protection device made of fire-resistant material, which is horizontally displaceable between retracted and extended positions to provide a fire-protection surface equal to or greater than the sliding door's area, enhancing fire and smoke sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wall shell region cavity is left empty to accommodate the sliding door, then the sliding door can be properly received in the open position, but fire protection and smoke sealing are insufficient
Solution Approach 1:
The fire protection device is designed to be movable rather than fixed, allowing it to extend into the wall shell cavity when needed and retract when the sliding door is closed. This dynamic configuration provides fire protection only when the sliding door is open, resolving the contradiction between maintaining an empty cavity for door accommodation and providing fire protection.
Solution Approach 2:
The fire protection device acts as an intermediary element between the sliding door and the wall shell structure. It fills the cavity space temporarily when the door is open, providing the necessary fire barrier without permanently occupying the space needed for door movement and accommodation.
2Reliability
If sound-insulating or fire-retardant material is used to fill the wall shell cavity, then fire protection is improved, but the sliding door cannot be properly received in the open position
Solution Approach 1:
The fire protection device transitions from a static filled cavity to a dynamic movable barrier. When the sliding door needs to open, the fire protection device retracts, clearing the path for the door to be received in the wall shell region. When the door is closed, the device extends to provide fire protection, thus resolving the contradiction between fire protection and door movement.
3Reliability
If seals are added to the sliding door for noise, smoke and fire protection, then protection is improved, but the seal may not be sufficient in buildings with stricter requirements
Solution Approach 1:
Instead of relying solely on seals attached to the sliding door (one-dimensional protection at the door edge), the invention extends fire protection into the wall shell cavity (adding spatial depth/dimension). The fire protection device creates a barrier in the third dimension (depth into the wall), providing enhanced protection that complements the door seals and addresses stricter building requirements.
Data Source
AI summary
A building sliding door system separates a first building region from a second building region and has a frame structure that has a passage region and a wall shell region. A sliding door is displaced in the frame structure between a closed position and an open position, wherein the wall shell region at least partially receives the sliding door in the open position. An electromechanical drive unit and a control device control the displacement of the sliding door. A fire protection unit has a bracket and, movably mounted on the bracket, a fire protection device made of a material having a defined fire resistance. The fire protection device is horizontally displaceable within the wall shell region with respect to the bracket between a retracted position in which the sliding door is in the open position, and an extended position in which the sliding door is in the closed position.