High-barrier fireproof regulating valve

Abstract

The utility model discloses a high-barrier fireproof regulating valve, which relates to the technical field of fire-fighting equipment and comprises a valve body and a plurality of blades which are rotatably connected onto the valve body and are linked through a power part, and each blade comprises a blade main body and a rotating shaft penetrating through the upper end and the lower end of the blade main body. The upper end and the lower end of the rotating shaft are rotationally connected to an upper plate and a lower plate of the valve body correspondingly. Sealing rubber pieces are fixedly arranged on the front side edge and the rear side edge of the blade correspondingly. A guide column is fixedly arranged on the upper portion, away from the rotating shaft, of the blade body, a guide groove penetrating through an upper plate of the valve body is formed in the upper plate of the valve body, and the shape of the guide groove is matched with the rotating track of the guide column. The guide rods are arranged at the upper ends and the lower ends of the blades of the fireproof valve, so that the blades rotate along a set route when being closed, the phenomenon of deviation or dislocation is avoided, and meanwhile, the sealing rubber sheets are arranged on the front sides and the rear sides of the blades, so that the blocking effect is better.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a high-barrier fireproof regulating valve. Background Technology

[0002] A fire damper is a type of valve that uses shape memory alloy for temperature control and closes using gravity and a spring mechanism. Newer products also utilize the deformation of shape memory alloy to close the valve. Its function is as follows: when the smoke temperature reaches 280℃, people have basically evacuated, and smoke extraction is no longer practical. At this point, the smoke is already on fire, so the valve automatically closes to prevent the fire from spreading.

[0003] Existing fire dampers close when the ambient temperature reaches the critical temperature of the fusible alloy in the event of a fire. During closure, the blades of adjacent fire dampers experience significant impact and collision under the action of the spring mechanism, which can damage the blades and even deform the fire damper. Furthermore, over long-term use, the fire damper may sink or misalign under the influence of gravity, and the aging of components can also cause it to jam, shift, or become misaligned during emergency closure. Large gaps may remain above, below, or on the sides of the fire damper blades, preventing complete closure and resulting in poor sealing, thus failing to achieve the high barrier function. Utility Model Content

[0004] The purpose of this utility model is to provide a high-barrier fireproof regulating valve. Guide rods are set at the upper and lower ends of the fireproof valve blade, so that the blade rotates along a predetermined path when closed, avoiding deviation or misalignment. At the same time, sealing rubber sheets are also provided on the front and rear sides of the blade, so as to improve the barrier effect.

[0005] This utility model includes a valve body and multiple blades rotatably connected to the valve body and linked by a power component. Each blade includes a blade body and a rotating shaft passing through the upper and lower ends of the blade body. The upper and lower ends of the rotating shaft are rotatably connected to the upper plate and the lower plate of the valve body, respectively. Sealing rubber sheets are fixedly provided on the front and rear edges of the blade. A guide post is fixedly provided on the upper part of the blade body away from the rotating shaft. A guide groove passing through the upper plate of the valve body is provided, and the shape of the guide groove is adapted to the rotation trajectory of the guide post.

[0006] Preferably, there are two guide posts, which are located at the upper and lower ends of the blade body and on the same side of the rotating shaft; the upper and lower plates of the valve body are provided with guide grooves corresponding to the guide posts.

[0007] Preferably, there are two guide posts, which are set at the upper and lower ends of the blade body and located on both sides of the rotating shaft; the upper and lower plates of the valve body are provided with guide grooves corresponding to the guide posts.

[0008] Preferably, the guide groove is an arc shape centered on the center of the rotating shaft, and the guide groove is located on the movable side of the guide post.

[0009] Preferably, the guide post is provided with a limiting plate, which is located on the outside of the guide groove.

[0010] Preferably, the sealing rubber sheet has a corrugated convex and concave surface on the side that is in contact with the blade body, and the blade body has an irregular arc-shaped surface corresponding to the convex and concave surface.

[0011] Preferably, the concave and convex surfaces include a convex surface near the axis of rotation and a concave surface away from the axis of rotation, with a smooth transition between the convex and concave surfaces.

[0012] Preferably, rubber buffer pads are fixedly installed in both the front and rear ends of the guide groove.

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. Guide posts are provided at the upper and lower ends of the blade body, and a guide groove is provided on the upper plate of the valve body. When the blade is closed, the guide posts slide in the guide groove to guide the blade to rotate along a predetermined route, preventing the blade from deviating or misaligning when closed, which would cause the fire damper to not close tightly and result in smoke leakage.

[0015] 2. The guide post extends out of the guide groove, and a limiting plate is fixed on the outside of the guide groove; when the blade sinks under the action of gravity, the limiting plate can restrict its sinking.

[0016] 3. When the blades close under the action of the power component, the sealing rubber sheet fits against the side of the adjacent blades, preventing hard contact between the blades and thus avoiding excessive force and deformation. Simultaneously, the sealing rubber sheet is more flexible than metal, allowing for a better and tighter fit with adjacent blades. Even with slight deformation of the blade body, a good fit can be achieved, thereby improving the sealing performance of the fire damper. Furthermore, when the concave and convex surfaces contact the arc-shaped surface of the blade body, there is a pre-compression process between the concave and convex surfaces, resulting in better sealing. Finally, the contact between two adjacent blade bodies via the concave and convex surfaces of the sealing rubber sheet, compared to planar contact, allows harmful gases to make multiple bends between the gaps between the two adjacent blades, resulting in a longer travel distance and slower flow rate, further enhancing the sealing performance of the valve body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a high-barrier fireproof regulating valve according to the present invention;

[0018] Figure 2 This is a top view of a high-barrier fireproof regulating valve according to the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the blade structure;

[0021] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0022] Figure 6 This is a top view of the sealing rubber sheet;

[0023] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0024] In the diagram: 1. Valve body; 101. Upper plate; 102. Lower plate; 103. Guide groove; 104. Buffer pad; 2. Blade; 201. Blade body; 202. Rotating shaft; 203. Guide post; 204. Limiting plate; 3. Sealing rubber sheet; 301. Convex surface; 302. Concave surface. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] The orientations mentioned in this specification are based on the orientation of the high-barrier fireproof regulating valve of this utility model during normal operation, and do not limit its orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0027] like Figures 1 to 7 As shown in the figure, a high-barrier fire-resistant regulating valve includes a valve body 1 and multiple blades 2 rotatably connected to the valve body 1 and linked by a power component. The blades 2 are normally in a vertical open state. When a fire occurs, the ambient temperature rises and reaches the critical temperature value of the fuse rod, causing the fuse rod to break. The power component moves and rotates the blades 2 to a horizontal direction, closing the fire-resistant valve and preventing the diffusion of harmful gases.

[0028] Each blade 2 includes a blade body 201 and a rotating shaft 202 passing through the upper and lower ends of the blade body 201. The upper and lower ends of the rotating shaft 202 are rotatably connected to the upper plate 101 and the lower plate 102 of the valve body 1, respectively. Under the action of the power component, the rotating shaft 202 can drive the blade 2 to rotate, thereby realizing the opening and closing of the valve body 1. A guide post 203 is fixedly provided on the upper part of the blade body 201 away from the rotating shaft 202. A guide groove 103 passing through the upper plate 101 of the valve body 1 is provided. The shape of the guide groove 103 is adapted to the rotation trajectory of the guide post 203. When the blade 2 is closed, the guide post 203 slides in the guide groove 103, guiding the blade 2 to rotate along a predetermined route, preventing the blade 2 from deviating or misaligning when closed, which would cause the fire damper to not close tightly and result in smoke leakage.

[0029] In one embodiment, two guide posts 203 are provided, located at the upper and lower ends of the blade body 201 and on the same side of the rotating shaft 202; the upper and lower plates 102 of the valve body 1 are provided with guide grooves 103 corresponding to the guide posts 203, and guide posts 203 are provided at both the upper and lower ends of the blade body 201, so that both the upper and lower ends of the blade body 201 can receive the guiding effect, and the guiding effect is better.

[0030] In another embodiment, there are two guide posts 203, which are set at the upper and lower ends of the blade body 201 and located on both sides of the rotating shaft 202. That is, they are arranged in a centrally symmetrical manner with the center of the blade body 201 as the center, so that the main body on both sides of the rotating shaft 202 can be guided and the force is more even. The upper and lower plates 102 of the valve body 1 are provided with guide grooves 103 corresponding to the guide posts 203.

[0031] Furthermore, the guide groove 103 is an arc shape centered on the center of the rotating shaft 202. The guide groove 103 is located on the movable side of the guide column 203. When the blade 2 is closed, the blade 2 is blocked in the middle of the fireproof area. The guide groove 103 is not connected to the other side of the blade 2, so there will be no smoke leakage at this point.

[0032] Furthermore, the guide post 203 extends out of the guide groove 103, and a limiting plate 204 is fixed on the outside of the guide groove 103; when the blade 2 sinks under the action of gravity, the limiting plate 204 can restrict its sinking.

[0033] Furthermore, such as Figures 5 to 7 As shown, sealing rubber sheets 3 are fixed on the front and rear edges of the blade 2 respectively. The sealing rubber sheets 3 are located on the surfaces that are in contact with the adjacent blade 2, that is, one is on the inner edge of the blade body 201 and the other is on the outer edge of the blade body 201. The sealing rubber sheet 3 has a corrugated concave-convex surface 301 on the side that is in contact with the blade body 201. The blade body 201 has an irregular arc-shaped surface corresponding to the concave-convex surface 301. The concave-convex surface 301 includes a convex surface 301 near the rotating shaft 202 and a concave surface 302 away from the rotating shaft 202. The convex surface 301 and the concave surface 302 are smoothly transitioned.

[0034] When the blade 2 closes under the action of the power component, the sealing rubber sheet 3 fits against the side of the adjacent blade 2, which can prevent hard contact between the blades 2, which would cause excessive force and deformation. At the same time, the sealing rubber sheet 3 is more flexible than metal, and can fit better tightly with the adjacent blades 2. Even if the blade body 201 is slightly deformed, it can still fit well, thereby improving the sealing performance of the fire damper. Furthermore, when the concave-convex surface 301 contacts the arc-shaped surface of the blade body 201, there is a pre-compression process between the concave-convex surface 301 and the arc-shaped surface, which makes the sealing performance even better. Finally, the contact between two adjacent blade bodies 201 through the concave-convex surface 301 on the sealing rubber sheet 3, compared with planar contact, allows the harmful gas to make multiple bends between the gaps between the two adjacent blades 2, resulting in a longer travel distance and a slower flow rate, which further benefits the sealing performance of the valve body 1.

[0035] Furthermore, such as Figure 3 As shown, rubber buffer pads 104 are fixedly installed in both the front and rear ends of the guide groove 103. The rubber buffer pads 104 buffer the guide post 203 and absorb its impact force.

[0036] Furthermore, both the sealing rubber sheet 3 and the buffer pad 104 are made of high-temperature resistant materials, which are not easily deformed at high temperatures.

[0037] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A high barrier fire rated control valve characterized by: The utility model provides a valve body (1), the plurality of blades (2) of rotation connection in valve body (1) and linkage through power part, each blade (2) includes blade body (201) and the rotation axis (202) that passes through the upper and lower ends of blade body (201), the upper and lower ends of rotation axis (202) are rotationally connected on the upper plate (101) and the lower plate (102) of valve body (1) respectively, and the front and back two side edges of blade (2) are fixedly provided with sealing rubber sheet (3) respectively, the upper portion of blade body (201) is fixedly provided with guide column (203) away from the side of rotation axis (202), the upper plate (101) of valve body (1) is provided with guide groove (103) that passes through the upper plate (101) of valve body (1), and the shape of guide groove (103) is adapted to the rotation track of guide column (203).

2. A high barrier fire rated control valve as claimed in claim 1, wherein: The guide column (203) is provided with two, is arranged in the upper and lower ends of blade body (201) and is located on the same side of rotation axis (202), and the upper and lower plates (102) of valve body (1) are provided with the guide groove (103) corresponding to the guide column (203).

3. A high barrier fire rated control valve as claimed in claim 1, wherein: The guide column (203) is provided with two, is arranged in the upper and lower ends of blade body (201) and is located on the both sides of rotation axis (202), and the upper and lower plates (102) of valve body (1) are provided with the guide groove (103) corresponding to the guide column (203).

4. A high barrier fire rated control valve as defined in claim 1, wherein: The guide groove (103) is circular arc shape with the center of rotation axis (202) as center, and the guide groove (103) is located on the movable side of guide column (203).

5. A fire rated control valve as defined in claim 1, wherein: The guide column (203) is provided with limiting plate (204), and the limiting plate (204) is located on the outside of guide groove (103).

6. A high barrier fire rated damper as defined in claim 1, wherein: The sealing rubber sheet (3) is provided with corrugated concave-convex surface (301) on the side of being attached to blade body (201), and the blade body (201) is provided with irregular arc surface corresponding to the concave-convex surface (301).

7. A high barrier fire rated damper as defined in claim 6, wherein: The concave-convex surface (301) includes the convex surface (301) close to rotation axis (202) side and the concave surface (302) away from rotation axis (202) side, and the convex surface (301) and the concave surface (302) are smoothly transitioned.

8. A fire rated control valve according to claim 1 wherein: The rubber buffer pad (104) is fixedly installed in the front and back two end portions of the groove body of guide groove (103).

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