Fire damper assembly having single-row airfoil-shaped blades

Abstract

This invention relates to a fireproof gate structure with a single row of truncated vanes, comprising a rectangular frame, a plurality of truncated vanes, a plurality of driving components, a first fuse, and a plurality of locking mechanisms. The plurality of truncated vanes are disposed inside the rectangular frame, and the plurality of driving components are respectively disposed on the left and right sides of the rectangular frame. The first fuse is disposed at the top of the rectangular frame, and its other end is connected to the topmost vane among the plurality of truncated vanes disposed inside the rectangular frame, providing tension. The plurality of locking mechanisms are respectively disposed on the plurality of truncated vanes. In the event of a fire, the first fuse melts and loses tension, causing the plurality of truncated vanes to close, and the plurality of locking mechanisms interlock the truncated vanes.

Claims

1. A fireproof gate structure with a single row of wing-shaped blades, having an open state and a closed state, comprising: A rectangular frame has a plurality of first through holes on its left and right sides respectively; a plurality of airfoil blades, each of which has a locking hole at both ends, wherein a screw is simultaneously passed through any of the plurality of first through holes and the locking hole, so that the plurality of airfoil blades are correspondingly disposed inside the rectangular frame and can rotate respectively, wherein each of the plurality of airfoil blades has a first accommodating space inside; a plurality of driving components are respectively disposed on the outer sides of the left and right sides of the rectangular frame and are respectively connected to the locking holes at both ends of each of the plurality of airfoil blades. A first fuse is disposed on the inner side of the top of the rectangular frame, and its other end is connected to the topmost blade of the plurality of truncated vanes disposed on the inner side of the rectangular frame and has a tension. When the temperature reaches a predetermined value, it will melt and lose the tension, causing the plurality of truncated vanes to enter the closed state from the open state; and a plurality of locking mechanisms are respectively disposed on the plurality of truncated vanes, which lock the plurality of truncated vanes after they enter the closed state.

2. The fireproof gate structure as described in claim 1, wherein any of the plurality of drive components includes: A linkage having a plurality of second through holes, such that the screw passes through any one of the plurality of second through holes, any one of the plurality of first through holes, and the locking hole simultaneously for locking, thereby controlling the synchronous opening and closing of the plurality of wing-shaped blades; and at least one elastic member, one end of which is connected to the upper end and / or lower end of the linkage, and the other end of which is connected to the rectangular frame.

3. The fireproof gate structure as described in claim 2, wherein the at least one elastic member has an elastic force corresponding to the tension of the first fuse, for controlling the plurality of scissor blades to enter the closed state.

4. The fireproof gate structure as described in claim 1, wherein the first accommodating space is provided with a plurality of support members to divide the first accommodating space into a plurality of cavities.

5. The fireproof gate structure as described in claim 4, wherein any of the plurality of cavities comprises sound-absorbing material and / or heat-insulating and flame-retardant material.

6. The fireproof gate structure as described in claim 1, wherein any of the plurality of locking mechanisms includes: A main body has a pin hole on its upper side and a plurality of positioning sleeves on its lower side, with the openings of the plurality of positioning sleeves being parallel to each other in the vertical direction; a second fuse is connected to the main body and has an opening on its lower side; and a pin is L-shaped, with one end passing through the opening and the other end passing through the plurality of positioning sleeves. When the second fuse melts, the pin falls and engages with the pin hole of another locking mechanism below, thereby locking the plurality of wing-shaped blades together.

7. The fireproof gate structure as described in claim 6, wherein the melting point of the second fuse is higher than that of the first fuse.

8. The fireproof gate structure as described in claim 1, wherein the open state and the closed state are achieved by the plurality of truncated vanes rotating in a figure-eight opposing or parallel unidirectional manner.

9. The fireproof gate structure as described in claim 1, wherein the predetermined value is 74°C.

10. The fireproof gate structure as described in claim 1, wherein a hollow cover plate may be further provided on the upper side, lower side, left side, and right side of the rectangular frame, the hollow cover plate comprising: A plate and a cover are fitted onto the plate and form a hollow structure between them to serve as a second accommodating space. The second accommodating space and / or the space between the rectangular frame and the hollow cover can be filled with heat-insulating and flame-retardant material.

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