Novel smoke exhaust fireproof valve

Abstract

The utility model relates to the technical field of novel smoke exhaust fireproof valves, in particular to a novel smoke exhaust fireproof valve which comprises a valve body, a controller used for external control is arranged on the valve body, a plurality of control blades used for opening, closing and releasing smoke are arranged on the valve body, arc-shaped metal pieces used for limiting the control blades are symmetrically arranged on the valve body, and the arc-shaped metal pieces are arranged on the valve body. The arc-shaped metal piece is provided with a first rotating shaft used for controlling the blades in a rotating mode. Through the arrangement of the first rotating shaft and the connecting pieces, the controller can adjust all the blades only by rotating the middle control blade, the opening and closing time of the blades can be effectively saved, the first rotating shaft can effectively improve the rotating efficiency of the blades under the connection of the control piece, and compared with the prior art, the rotating efficiency of the blades is improved. The problems that a pressing device is complex in process and high in cost can be effectively solved, the sealing performance of the valve body can be achieved, and meanwhile installation inconvenience of a control blade control component can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire dampers, in particular to a novel smoke exhaust fire damper. Background Art

[0002] The smoke exhaust fire damper is a fire protection component, which is usually installed on the pipe of the mechanical smoke exhaust system. It is usually open and will be opened to exhaust smoke when a fire occurs. It will be closed when the smoke temperature in the smoke exhaust pipe reaches 280 degrees. It will meet the requirements of smoke leakage and fire resistance integrity within a certain period of time, and play the role of smoke isolation and fire resistance. Main materials: carbon steel, galvanized plate, stainless steel.

[0003] In order to ensure the sealing performance, the existing fire damper needs to set a sealing strip on the edge of the blade, and the upper and lower positions of the blade are inserted with elastic springs. Adding a sealing strip on the blade requires a special pressing device, which is not only complicated in process but also more expensive. After the elastic part is inserted, it is not easy to adjust the relative position, and the installation is very inconvenient.

[0004] For this purpose, we have designed a new type of smoke exhaust fire damper. Summary of the invention

[0005] The utility model aims to provide a new type of smoke exhaust fire damper in order to solve the inconvenience of operation in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A new type of smoke exhaust fire damper includes a valve body, the valve body is provided with a controller for external control, the controller is provided with a limiting rod for limiting the opening and closing angle, the valve body is provided with a plurality of control blades for opening and closing to release smoke, the valve body is symmetrically provided with arc-shaped metal parts for limiting the control blades, the arc-shaped metal parts are provided with a first rotating shaft for rotating the control blades, the arc-shaped metal parts are provided with a second rotating shaft for supporting the control blades, and the arc-shaped metal parts are symmetrically provided with a third rotating shaft for limiting the control blades.

[0008] Preferably, grooves for improving rigidity are symmetrically provided on the control blade, and overlapping seams for reducing blade friction are provided at both ends of the control blade.

[0009] Preferably, the arc-shaped metal piece is fixedly connected to the inner wall of the valve body by a plurality of screws, and a connecting piece for improving the linkage of the control blades is provided on the arc-shaped metal piece.

[0010] Preferably, the first rotating shaft passes through the connecting plate and is abutted against the connecting plate through an auxiliary plate. A control member for manipulating the control blade is provided at one end of the first rotating shaft. The first rotating shaft is fixedly connected to an output end of the controller.

[0011] Preferably, both ends of the second rotating shaft pass through the arc-shaped metal piece and are matched with the arc-shaped metal piece through fasteners, and one end of the control member is fixedly connected to the second rotating shaft by welding.

[0012] Preferably, the third rotating shaft is fixedly connected to the two control blades by welding, and the third rotating shaft is fixedly connected to the two control members by welding.

[0013] The beneficial effects of the utility model are:

[0014] The utility model arranges the first rotating shaft and the connecting piece so that the controller only needs to rotate the middle control blade to complete the adjustment of all the blades, which can effectively save the time of opening and closing the blades. The first rotating shaft can effectively improve the blade rotation efficiency when connected to the control member. Compared with the prior art, it can effectively avoid the complicated process and high cost of the pressing device, and while solving the sealing problem of the valve body, it can also reduce the inconvenience of installing the control blade control component.

[0015] The utility model improves the rigidity standard of the control blade by arranging the groove and the overlapping seam, and avoids the control blade from being hit by block-shaped foreign objects during operation, which may cause the control blade to be bent or damaged. The overlapping seam can reduce the friction between the control blades and increase the service life of each control blade. The stability of the control blade in the valve body can be improved by the screws, and the screws can strengthen the connection strength of the arc-shaped metal parts on the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a new type of smoke exhaust fire damper proposed by the utility model;

[0017] Figure 2 This is a rear view of a new type of smoke exhaust fire damper proposed by the utility model;

[0018] Figure 3 A top view of a new type of smoke exhaust fire damper proposed by the utility model;

[0019] Figure 4 for Figure 2 Enlarged view of the structure marked with A in the middle.

[0020] In the figure: 1. valve body; 2. controller; 3. limiting rod; 4. arc-shaped metal part; 5. connecting plate; 6. first rotating shaft; 7. auxiliary plate; 8. control member; 9. second rotating shaft; 10. control blade; 11. third rotating shaft; 12. screw; 13. groove; 14. overlapping seam. DETAILED DESCRIPTION

[0021] Reference Figure 1-Figure 4A new type of smoke exhaust fire damper includes a valve body 1. The valve body 1 is a smoke exhaust fire damper in the prior art, which is mainly used to prevent fire in fire places. The controller 2 is used to control the opening and closing of the blades in the valve body 1 in the prior art, and the controller 2 structure can be manually operated. The limiting rod 3 is suspended on one side of the valve body 1, which is mainly used to limit the maximum rotation angle of the blade to avoid the blade rotating too much, affecting the later resetting work, thereby causing the blade to fail to reset normally and affecting the next smoke exhaust work.

[0022] The valve body 1 is provided with a plurality of control blades 10 for opening and closing to release smoke. The control blades 10 are made of aluminum alloy material, which has high wear resistance and is relatively light compared to other metals. The control blades 10 are smoke discharge devices of the valve body 1, and control the opening and closing components of the valve body 1. The control blades 10 are symmetrically provided with grooves 13 for improving rigidity. The grooves 13 make the control blades 10 form a bent shape, which can improve the overall rigidity of the control blades 10 and avoid bending or damage of the control blades 10 caused by collision with block-shaped foreign objects during operation. Overlapping seams 14 for reducing blade friction are provided at both ends of the control blades 10. The overlapping seams 14 can reduce the friction between the control blades 10 and at the same time improve the service life of each control blade 10.

[0023] The valve body 1 is symmetrically provided with an arc-shaped metal piece 4 for limiting the control blade 10. The arc-shaped metal piece 4 is in a semicircular arc shape and is mainly used to close the upper and lower ends of the valve body 1. The arc-shaped metal piece 4 is in a hollow state as a whole, which can be beneficial to the rotation efficiency of the control blade 10. The arc-shaped metal piece 4 is fixedly connected to the inner wall of the valve body 1 by a plurality of screws 12. The screws 12 are fixing components in the prior art. The arc-shaped metal piece 4 is provided with a connecting piece 5 for improving the linkage of the control blade 10. The connecting piece 5 is used to centrally control the blades 10, and mainly controls a control blade 10 in the middle section of the valve body 1. By adjusting this control blade 10, the remaining control blades 10 can be driven to rotate.

[0024] A first rotating shaft 6 for rotating the control blade 10 is provided on the arc-shaped metal part 4. The first rotating shaft 6 is a basic component for rotating the control blade 10 on the arc-shaped metal part 4. The first rotating shaft 6 passes through the connecting plate 5 and is abutted against the connecting plate 5 through the auxiliary plate 7. The auxiliary plate 7 is used to limit one end of the first rotating shaft 6 so that the first rotating shaft 6 is limited to the connecting plate 5. A control member 8 for operating the control blade 10 is provided at one end of the first rotating shaft 6. The control member 8 is a metal connecting member, which is mainly used to transmit the rotational force of the first rotating shaft 6 to rotate the control blade 10. The first rotating shaft 6 is fixedly connected to the output end of the controller 2, and the first rotating shaft 6 in the middle section of the valve body 1 is connected to the rotation adjustment end of the controller 2.

[0025] A second rotating shaft 9 for supporting the control blade 10 is provided on the arc-shaped metal part 4. The second rotating shaft 9 is a skeleton component of the control blade 10. Secondly, after being connected with the control part 8, the control blade 10 can be quickly rotated to avoid the problem of large overall wind resistance of the control blade 10, which leads to the problem of unsmooth opening and closing. Both ends of the second rotating shaft 9 pass through the arc-shaped metal part 4 and are adapted to the arc-shaped metal part 4 through fasteners. The second rotating shaft 9 is against the arc-shaped metal part 4, and one end of the control part 8 is fixedly connected to the second rotating shaft 9 by welding, and welding can improve the connection strength between the two.

[0026] The arc-shaped metal part 4 is symmetrically provided with a third rotating shaft 11 for limiting the control blade 10. The third rotating shaft 11 is arranged on the control blades 10 on both sides. It mainly synchronizes the movement of the second rotating shaft 9 under the rotation of the second rotating shaft 9, so that the control blades 10 on both sides complete the adjustment action. The third rotating shaft 11 is fixedly connected to the two control blades 10 by welding, and welding can improve the connection strength between the two. The third rotating shaft 11 is fixedly connected to the two control parts 8 by welding, and welding can improve the connection strength between the two.

[0027] The working principle of the utility model is as follows: first, the arc-shaped metal part 4 is fixed in the valve body 1 by multiple screws 12, and then the holes with the same number as the control blade 10 are opened, and then the control blade 10 is welded to the second rotating shaft 9 and the third rotating shaft 11, and inserted into the hole of the arc-shaped metal part 4, and then the control blade 10 is operated to the non-opening state, and one end of the control part 8 on the first rotating shaft 6 is welded and fixed to the second rotating shaft 9.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel smoke exhaust fire damper, comprising a valve body (1), the valve body (1) being provided with a controller (2) for external control, the controller (2) being provided with a limiting rod (3) for limiting the opening and closing angle, characterized in that: The valve body (1) is provided with a plurality of control blades (10) for opening and closing to release smoke, the valve body (1) is symmetrically provided with arc-shaped metal parts (4) for limiting the control blades (10), the arc-shaped metal parts (4) are provided with a first rotating shaft (6) for rotating the control blades (10), the arc-shaped metal parts (4) are provided with a second rotating shaft (9) for supporting the control blades (10), and the arc-shaped metal parts (4) are symmetrically provided with a third rotating shaft (11) for limiting the control blades (10).

2. A new type of smoke exhaust fire damper according to claim 1, characterized in that: Grooves (13) for improving rigidity are symmetrically provided on the control blade (10), and overlapping slits (14) for reducing blade friction are provided at both ends of the control blade (10).

3. A new type of smoke exhaust fire damper according to claim 1, characterized in that: The arc-shaped metal part (4) is fixedly connected to the inner wall of the valve body (1) via a plurality of screws (12), and a connecting piece (5) for improving the linkage of the control blade (10) is provided on the arc-shaped metal part (4).

4. A new type of smoke exhaust fire damper according to claim 3, characterized in that: The first rotating shaft (6) passes through the connecting plate (5) and abuts against the connecting plate (5) via an auxiliary plate (7); a control member (8) for operating the control blade (10) is provided at one end of the first rotating shaft (6); and the first rotating shaft (6) is fixedly connected to an output end of the controller (2).

5. A new type of smoke exhaust fire damper according to claim 4, characterized in that: Both ends of the second rotating shaft (9) pass through the arc-shaped metal part (4) and are matched with the arc-shaped metal part (4) via fasteners; one end of the control part (8) is fixedly connected to the second rotating shaft (9) by welding.

6. A new type of smoke exhaust fire damper according to claim 5, characterized in that: The third rotating shaft (11) is fixedly connected to the two control blades (10) by welding, and the third rotating shaft (11) is fixedly connected to the two control members (8) by welding.

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