Fire damper structure with multiple rows of airfoil blades

Abstract

This invention relates to a fireproof gate structure with multiple rows of truncated blades, comprising a rectangular frame, multiple truncated blades, multiple driving components, a first fuse, and multiple locking mechanisms. Each truncated blade has a first accommodating space, which is divided into multiple cavities by a support member and filled with sound-absorbing and / or heat-insulating and flame-retardant materials. The driving components control the synchronous opening and closing of the truncated blades. The first fuse melts at a preset temperature, driving the truncated blades to a closed state. Locking mechanisms are respectively located on the truncated blades, locking adjacent blades when the fuse melts at high temperature. Additionally, the rectangular frame has hollow cover plates on all four sides to form a second accommodating space filled with heat-insulating and flame-retardant materials, enabling the invention to automatically close in case of fire and drive the locking blades, thus improving fireproof isolation and safety performance.

Claims

1. A fireproof gate structure with multiple rows of truncated 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, and the rectangular frame has a front side and a rear side; a plurality of truncated vanes, each of which has a locking hole at both ends, wherein a screw is simultaneously inserted through any of the plurality of first through holes and the locking hole, so that the plurality of truncated vanes are correspondingly disposed on the front side and the rear side of the rectangular frame and can rotate respectively, wherein each of the plurality of truncated vanes has a first accommodating space inside; a plurality of driving components are respectively disposed on the left and right sides of the rectangular frame and respectively connected to the locking holes at both ends of each of the plurality of truncated vanes; A first fuse is disposed at the top front or the top rear of the rectangular frame, and its other end is connected to the topmost blade among the plurality of truncated blades disposed on the front or the rear side of the rectangular frame and has a tension. When the temperature reaches a predetermined value, it melts and loses the tension, causing the plurality of truncated blades to enter the closed state from the open state; and a plurality of locking mechanisms are respectively disposed on the plurality of truncated blades, which lock the plurality of truncated blades after they enter the closed state.

2. The fireproof gate structure with a plurality of rows of truncated blades as described in claim 1, wherein any of the plurality of drive components includes: A linkage having a plurality of connectors and a plurality of couplings, wherein the plurality of connectors are provided with a plurality of second through holes so 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, thereby controlling the synchronous opening and closing of the plurality of wing-shaped blades, and the plurality of couplings are used to connect the plurality of connectors to make them operate synchronously; and at least one elastic member connected to the uppermost and / or lowermost side of the plurality of connectors.

3. The fireproof gate structure with a plurality of rows of scissor blades 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 a closed state.

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

5. The fireproof gate structure with a plurality of rows of truncated blades as described in claim 4, wherein any one of the plurality of cavities contains sound-absorbing material and / or heat-insulating and flame-retardant material.

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

9. The fireproof gate structure with multiple rows of truncated blades as described in claim 1, wherein the predetermined value is 74°C.

10. The fireproof gate structure with multiple rows of truncated blades 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 sheet of wood; And a cover body, which is fitted onto the plate and forms a hollow structure between the cover body and the plate to serve as a second accommodating space, wherein the second accommodating space and / or the space between the rectangular frame and the hollow cover body can be filled with heat-insulating and flame-retardant material.

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