Device for releasing and resetting a fire and smoke barrier
OwnerChung Hsien Hsiehinventor
Life of this patent
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Abstract
The invention relates to a device for releasing and resetting a fire and smoke barrier. In a normal use state, a clutch member is held by an electromagnetic attraction unit, so that a push rod ejecting module cannot be actuated, and a door operator is controlled by a clutch module thereof. Upon power failure, for example upon an accident, the clutch member is released by the electromagnetic attraction unit, and a barrier release member is activated by the push rod ejecting module so as to shut the fire and smoke barrier. Upon power restoration, the clutch member is attracted and held by the electromagnetic attraction unit, and the push rod ejecting module is reset by a push rod resetting module. At the same time, the barrier release member is also reset.
Claims10
A device for releasing and resetting a fire and smoke barrier, which is used for actuating a barrier release member, the device comprising:
- an electromagnetic clutch module, comprising an electromagnetic attraction unit and a clutch member, the electromagnetic attraction unit being provided to attract and hold the clutch member;
- a push rod ejecting module, coupled to the clutch member and storing an elastic potential energy sufficient to push the barrier release member;
- a push rod resetting module, coupled to the clutch member and provided to reset the push rod ejecting module;
- wherein when the electromagnetic attraction unit is electrically deenergized, the clutch member is released by the electromagnetic attraction unit, and the barrier release member is pushed by the push rod ejecting module with aid of the elastic potential energy;
- when the push rod resetting module and the electromagnetic clutch module are electrically energized, the clutch member is attracted and held by the electromagnetic attraction unit, and the push rod ejecting module is reset by the push rod resetting module.
A device for releasing and resetting of a fire and smoke barrier, which is used for actuating a barrier release member, the device comprising:
- a push rod ejecting module, storing an elastic potential energy sufficient to push the barrier release member;
- an electromagnetic holding module, coupled to the push rod ejecting module;
- and
- a push rod resetting module, coupled to the push rod ejecting module;
- wherein when the electromagnetic holding module is electrically deenergized, the barrier release member is pushed by the push rod ejecting module with aide of the elastic potential energy;
- when the push rod resetting module and the electromagnetic holding module are electrically energized, the push rod ejecting module is reset by the push rod resetting module;
- the push rod ejecting module is attracted and held by the electromagnetic holding module.
Dependencies are inferred from the claim text.