The invention relates to a protection device for ventilation ducts where at least one duct opening for the supply and/or evacuation of air is provided, in particular for fire protection of air conditioned rooms for information technology installations. To separate the protection zones in the event o
The invention relates to a protection device for ventilation ducts where at least one duct opening for the supply and/or evacuation of air is provided, in particular for fire protection of air conditioned rooms for information technology installations. To separate the protection zones in the event of an emergency according to high safety standards, it is suggested that said protection device comprises at least one protection slide that is supported in a vertically displaceable manner and furthermore includes a sliding mechanism by means of which said protection slide is movable from an open position to a closed position of said duct opening, said duct opening being completely covered by said protection slide in said closed position.
대표청구항▼
1. A protection device for ventilation ducts where at least two directly vertically spaced apart duct openings for the supply of air or evacuation of air or both is provided, comprising: at least one protection slide comprising a sliding damper panel that is supported in a vertically displaceable ma
1. A protection device for ventilation ducts where at least two directly vertically spaced apart duct openings for the supply of air or evacuation of air or both is provided, comprising: at least one protection slide comprising a sliding damper panel that is supported in a vertically displaceable manner and a sliding mechanism by means of which said protection slide is vertically driven from an open position to a closed position of a first one of said at least two directly vertically spaced apart duct openings, said first one of said at least two directly vertically spaced apart duct openings being completely covered by said protection slide in said closed position; anda compensating element for compensating the weight of said protection slide, a weight of said compensating element having substantially the same weight of said protection slide and said compensating element is constituted by another protection slide, capable of closing a second of the at last two directly vertically spaced apart duct openings wherein when the protection slide covers the first one of said at least two directly vertically spaced apart duct openings, the another protection slide covers the second one of said at least two directly vertically spaced apart duct openings. 2. The protection device of claim 1, wherein said compensating element is so designed that between said weight and said force acting in the opposite direction upon said protection slide and upon said compensating element, respectively, an equilibrium of forces is essentially obtained. 3. A protection device for ventilation ducts where at least two directly vertically spaced apart duct openings for the supply of air or evacuation of air or both is provided, comprising: at least one protection slide comprising a sliding damper panel that is supported in a vertically displaceable manner and a sliding mechanism by means of which said protection slide is vertically movable from an open position to a closed position of a first one of said at least two directly vertically spaced apart duct openings, said first one of said at least two directly vertically spaced apart duct openings being completely covered by said protection slide in said closed position; anda compensating element for compensating the weight of said protection slide, a weight of said compensating element corresponding to at least a substantial part of a weight of said protection slide and said compensating element is constituted by another protection slide, capable of closing a second of the at last two directly vertically spaced apart duct openings wherein when the protection slide covers the first one of said at least two directly vertically spaced apart duct openings, the another protection slide covers the second one of said at least two directly vertically spaced apart duct openings;said sliding mechanism comprises a lever arrangement that is articulated on said protection slide and on said compensating element in such a manner that the weight of said compensating element produces a force acting upon said protection slide in the opposite direction; andsaid lever arrangement comprises at least one lever having a pivot axis that is located between said protection slide and said compensating element, said protection slide having a connecting member that is articulated on one respective lever end and said compensating element having a connecting member that is articulated on the other respective lever end. 4. The protection device of claim 3, wherein said lever arrangement comprises two levers crossing one another. 5. The protection device of claim 4, wherein said levers have respective pivot axes which are provided with gearwheels, said gearwheels meshing with one another and thus cooperating during the pivoting movement of said levers. 6. The protection device of claim 4, wherein said activating unit acts upon at least one pivot axis of said levers. 7. A protection device for ventilation ducts where at least two directly vertically spaced apart duct openings for the supply of air or evacuation of air or both is provided, comprising: at least one protection that is supported in a vertically displaceable manner and a sliding mechanism by means of which said protection slide is vertically movable from an open position to a closed position of a first one of said at least two directly vertically spaced apart duct openings, said first one of said at least two directly vertically spaced apart duct openings being completely covered by said protection slide in said closed position;a compensating element for compensating the weight of said protection slide, a weight of said compensating element having substantially the same weight of said protection slide and said compensating element is constituted by another protection slide, capable of closing a second of the at last two directly vertically spaced apart duct openings wherein when the protection slide covers the first one of said at least two directly vertically spaced apart duct openings, the another protection slide covers the second one of said at least two directly vertically spaced apart duct openings;said sliding mechanism comprises a lever arrangement that is articulated on said protection slide and on said compensating element in such a manner that the weight said compensating element produces a force acting upon said protection slide in the opposite direction;said sliding mechanism comprises an activating unit that acts upon said lever arrangement and causes a pivoting movement of said lever arrangement in the event of fire, whereby each respective protection slide and the another protection slide are movable to their respective closed position; andsaid activating unit comprises a spring return actuator. 8. A protection device for ventilation ducts where at least two directly vertically spaced apart duct openings for the supply of air or evacuation of air or both is provided, comprising: at least one protection that is supported in a vertically displaceable manner and a sliding mechanism by means of which said protection slide is vertically movable from an open position to a closed position of a first one of said at least two directly vertically spaced apart duct openings, said first one of said at least two directly vertically spaced apart duct openings being completely covered by said protection slide in said closed position;a compensating element for compensating the weight of said protection slide, a weight of said compensating element having substantially the same weight of said protection slide and said compensating element is constituted by another protection slide, capable of closing a second of the at last two directly vertically spaced apart duct openings wherein when the protection slide covers the first one of said at least two directly vertically spaced apart duct openings, the another protection slide covers the second one of said at least two directly vertically spaced apart duct openings;said sliding mechanism comprises a lever arrangement that is articulated on said protection slide and on said compensating element in such a manner that the weight of said compensating element produces a force acting upon said protection slide in the opposite direction;said sliding mechanism comprises an activating unit that acts upon said lever arrangement and causes a pivoting movement of said lever arrangement in the event of fire, whereby each respective protection slide and the another protection slide are movable to their respective closed position; andsaid protection slide is movable from said open position to said closed position and to return said protection slide from said closed position to said open position in such a manner that only a torque of said activating unit of at most 50 Nm is required to move and return said at least one slide. 9. The protection device of claim 1, wherein said sliding mechanism is formed of stainless steel. 10. The protection device of claim 1, further comprising a wall element for a modular arrangement on a wall, said wall element having an aperture that corresponds to said duct opening. 11. The protection device of claim 1, wherein a substantial part of each of said protection slides is made of a highly fire insulating material. 12. The protection device of claim 1, wherein a substantial part of each of said protection slides is made of a radiation-absorbing material. 13. A protection wall comprising at least one protection device of claim 1. 14. The protection wall of claim 13, comprising a modular structure comprised of a plurality of said protection devices. 15. The protection device of claim 3, wherein said lever arrangement is so designed that between said weight and said force acting in the opposite direction upon said protection slide and upon said compensating element, respectively, an equilibrium of forces is essentially obtained.
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이 특허에 인용된 특허 (14)
McCabe Francis J. (#6 Bunker Hill Rd. Ottsville PA 18962), Access door eliminator for curtain fire dampers.
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