A fireproof smoke exhaust valve upper structure optimized baffle plate

Abstract

The utility model relates to fire prevention smoke exhaust valve technical field, concretely is a kind of fire prevention smoke exhaust valve upper structure optimized baffle, including bottom plate and baffle, bottom plate and baffle are T-shaped and are welded together, the side of baffle is provided with accommodating groove, the inside of accommodating groove is slidably provided with touch plate, it is provided with several groups of spring between accommodating groove and touch plate, wherein, one end of spring and the inner wall of accommodating groove are in contact, the other end of spring and touch plate are in contact.The utility model is provided with accommodating groove, touch plate and spring, even in the case where the bottom plate produces small amplitude bending deformation, the edge of smoke exhaust valve blade can always keep close contact between touch plate when closing, thereby smoke can be effectively avoided from the gap between baffle and smoke exhaust valve blade edge, ensure the blocking effect of fire prevention smoke exhaust valve to smoke.

Description

Technical Field

[0001] This utility model relates to the field of fireproof smoke exhaust valve technology, specifically to a baffle plate with optimized structure on a fireproof smoke exhaust valve. Background Technology

[0002] A smoke exhaust fire damper is a fire protection component, typically installed on the ductwork of a mechanical smoke exhaust system. It is normally open, opening to exhaust smoke during a fire. It closes when the smoke temperature inside the exhaust duct reaches 280 degrees Celsius and meets requirements for smoke leakage and fire resistance integrity for a certain period, thus acting as a smoke and fire barrier. Fire exhaust fire dampers usually have baffle plates installed on both sides of the inner wall of the damper. When a fire occurs, the damper's blades rotate and contact the baffle plates, effectively blocking the smoke.

[0003] Existing fireproof smoke exhaust valves typically have L-shaped baffles with folded edges. One side of the baffle contacts and is installed on the frame of the smoke exhaust valve, while the other side contacts the edge of the blade when the valve is closed. However, with prolonged use, the side of the baffle that contacts the edge of the blade is prone to slight bending deformation due to repeated pushing action from the blade. When the smoke exhaust valve is closed and the blade is rotated into position, a large gap may form between the edge of the blade and the valve, allowing smoke to pass through and affecting the smoke blocking effect. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned in the background, the present invention provides a baffle plate with optimized structure on the fireproof smoke exhaust valve.

[0005] This utility model overcomes the above technical problems by adopting the following technical solution:

[0006] An optimized side plate for a fireproof smoke exhaust valve includes a base plate and a baffle. The base plate and the baffle are welded together in a T-shape. A receiving groove is provided on the side of the baffle. A contact plate is slidably disposed inside the receiving groove. Several sets of springs are disposed between the receiving groove and the contact plate. One end of the spring abuts against the inner wall of the receiving groove, and the other end of the spring abuts against the contact plate.

[0007] As a further embodiment of this utility model: the receiving groove is provided with a plurality of guide holes, and a damping rod is slidably disposed in each of the plurality of guide holes. One end of the damping rod extends into the interior of the receiving groove and is connected to the contact plate, and the spring is sleeved on the surface of the damping rod.

[0008] As a further improvement of this utility model, one end of the damping rod extends out of the outer side of the receiving groove and is provided with a protrusion.

[0009] As a further improvement of this utility model, a sealing strip is provided on the outer surface of the touch plate.

[0010] As a further embodiment of this utility model: a plurality of reinforcing ribs are provided between the base plate and the baffle, and the reinforcing ribs are welded between the back of the baffle and the base plate.

[0011] As a further improvement of this utility model, the base plate is provided with several sets of mounting holes.

[0012] With the above structure, this utility model has the following advantages compared with the prior art: By setting up the receiving groove, the contact plate and the spring, even if the bottom plate undergoes a small degree of bending deformation, the edge of the smoke exhaust valve blade can always keep in close contact with the contact plate when closed, thereby effectively preventing smoke from passing through the gap between the baffle and the edge of the smoke exhaust valve blade, ensuring the smoke blocking effect of the fireproof smoke exhaust valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the receiving groove and the spring in this utility model.

[0016] Figure 4 This is a schematic diagram showing the disassembled structure of the receiving groove and the contact plate in this utility model.

[0017] In the diagram: 1. Base plate; 2. Baffle; 3. Receiving groove; 4. Contact plate; 5. Spring; 6. Guide hole; 7. Damping rod; 8. Protrusion; 9. Sealing strip; 10. Reinforcing rib; 11. Mounting hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figures 1-4In this embodiment of the utility model, a baffle plate with optimized structure on a fireproof smoke exhaust valve includes a base plate 1 and a baffle plate 2. The base plate 1 and the baffle plate 2 are welded together in a T-shape. When the base plate 1 is installed on both sides of the inner wall of the fireproof smoke exhaust valve, the baffle plate 2 can play the role of blocking the inner edge of the smoke exhaust valve. When the fireproof smoke exhaust valve is closed, its blades will rotate and the edges of the blades will move closer to the baffle plate 2. The side of the baffle plate 2 is provided with a receiving groove 3. There is also a touch plate 4 that can slide inside the receiving groove 3. Several sets of springs 5 ​​are provided between the receiving groove 3 and the touch plate 4. One end of the spring 5 abuts against the inner wall of the receiving groove 3, and the other end of the spring 5 abuts against the touch plate 4. Under normal circumstances, a part of the touch plate 4 extends out of the outside of the receiving groove 3. When the touch plate 4 is subjected to inward pressure, it will slide into the receiving groove 3. At this time, the spring 5 between the receiving groove 3 and the touch plate 4 is compressed and generates an elastic force on the touch plate 4 to move in the direction of the receiving groove 3.

[0020] When the fireproof smoke exhaust valve is closed and the edge of the blade approaches the baffle 2, the edge of the blade will contact the side of the contact plate 4 inside the receiving groove 3. At this time, the contact plate 4 will move towards the inside of the receiving groove 3 under the pressure of the blade edge. The spring 5 is compressed and generates an elastic force on the contact plate 4 to move towards the outside of the receiving groove 3. Under this elastic force, even if the base plate 1 undergoes a slight bending deformation, the edge of the smoke exhaust valve blade can always remain tightly fitted with the contact plate 4 when closed, thereby effectively preventing smoke from passing through the gap between the baffle 2 and the edge of the smoke exhaust valve blade.

[0021] In one embodiment of this utility model, a plurality of guide holes 6 are provided on the receiving groove 3, and a damping rod 7 is slidably disposed in each of the plurality of guide holes 6. One end of the damping rod 7 extends into the interior of the receiving groove 3 and is connected to the contact plate 4. During the movement of the contact plate 4 inside the receiving groove 3, the damping rod 7 will slide along the direction of the guide hole 6 under the drive of the contact plate 4. Therefore, the guide hole 6 and the damping rod 7 can guide the movement of the contact plate 4, so that the contact plate 4 will not turn inside the receiving groove 3 during the movement, but will always remain parallel to the axis of the receiving groove 3. Thus, when the blade approaches the contact plate 4, it is ensured that the surface of the contact plate 4 can completely contact the edge of the blade. In addition, the spring 5 is sleeved on the surface of the damping rod 7, so the damping rod 7 can support the spring 5, so that the damping rod 7 is kept in the receiving groove 3 without displacement.

[0022] It is worth noting that one end of the damping rod 7 extends out of the outer side of the receiving groove 3 and is provided with a protrusion 8. During the process of the contact plate 4 driving the damping rod 7 to move, since the protrusion 8 cannot pass through the guide hole 6, it can limit the stroke of the damping rod 7, so that the contact plate 4 connected to the damping rod 7 can remain inside the receiving groove 3 and will not detach from the receiving groove 3.

[0023] In another embodiment of this utility model, a sealing strip 9 is provided on the outer surface of the contact plate 4 to further improve the sealing between the contact plate 4 and the blade edge.

[0024] In another embodiment of this utility model, a number of reinforcing ribs 10 are connected between the back of the baffle 2 and the bottom plate 1 by welding. The reinforcing ribs 10 on the back of the baffle 2 can effectively support the baffle 2, thereby improving the bending resistance of the baffle 2 and making the baffle 2 less prone to bending deformation.

[0025] In another embodiment of this utility model, the base plate 1 is provided with a plurality of mounting holes 11, and the smoke exhaust valve frame is provided with screw mounting holes corresponding to the mounting holes 11. By passing the self-tapping screw through the mounting holes 11 and nailing it into the screw mounting holes, the base plate 1 and the baffle 2 can be installed as a whole on the smoke exhaust valve frame.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A baffle plate with optimized structure on a fireproof smoke exhaust valve, comprising a base plate (1) and a baffle plate (2), characterized in that, The base plate (1) and the baffle (2) are welded together in a T-shape. The side of the baffle (2) is provided with a receiving groove (3). A touch plate (4) is slidably arranged inside the receiving groove (3). Several sets of springs (5) are arranged between the receiving groove (3) and the touch plate (4). One end of the spring (5) abuts against the inner wall of the receiving groove (3), and the other end of the spring (5) abuts against the touch plate (4).

2. The optimized baffle plate on a fireproof smoke exhaust valve according to claim 1, characterized in that, The receiving groove (3) is provided with a number of guide holes (6), and a damping rod (7) is slidably arranged in each of the number of guide holes (6). One end of the damping rod (7) extends into the interior of the receiving groove (3) and is connected to the contact plate (4). The spring (5) is sleeved on the surface of the damping rod (7).

3. The optimized baffle plate on a fireproof smoke exhaust valve according to claim 2, characterized in that, One end of the damping rod (7) extends out of the outside of the receiving groove (3) and is provided with a protrusion (8).

4. The optimized baffle plate on a fireproof smoke exhaust valve according to claim 1, characterized in that, A sealing strip (9) is provided on the outer surface of the contact plate (4).

5. The optimized baffle plate on a fireproof smoke exhaust valve according to claim 1, characterized in that, A number of reinforcing ribs (10) are provided between the base plate (1) and the baffle (2), and the reinforcing ribs (10) are welded between the back of the baffle (2) and the base plate (1).

6. The optimized baffle plate on a fireproof smoke exhaust valve according to claim 1, characterized in that, The base plate (1) has several sets of mounting holes (11).

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