Explosion-proof smoke exhaust fireproof valve

Abstract

The utility model discloses an anti-explosion smoke-exhaust fireproof valve which comprises an outer frame and further comprises a connection driving mechanism and a turnover sealing mechanism which are arranged on the outer frame. The connecting driving mechanism comprises a driving groove and connecting shafts, the driving groove is formed in the bottom wall of the outer frame, a driving assembly is arranged in the driving groove, the connecting shafts are rotationally arranged on the bottom wall of the driving groove, the connecting shafts are arranged side by side, the connecting shafts penetrate through the top wall of the driving groove and extend out, gears are arranged on the connecting shafts, and the gears are meshed with the driving assembly. And the gear is connected with a driving assembly. The utility model belongs to the technical field of smoke exhaust fireproof valves, and particularly relates to an anti-explosion smoke exhaust fireproof valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke exhaust fire dampers, in particular to an explosion-proof smoke exhaust fire damper. Background Art

[0002] Smoke exhaust fire dampers are fire protection components that are generally installed on the pipes of mechanical smoke exhaust systems. They are usually in an open state and will be opened for smoke exhaust when a fire occurs. They will be closed when the smoke temperature in the smoke exhaust pipe reaches 280 degrees and will meet the smoke leakage and fire resistance integrity requirements within a certain period of time, playing a role in isolating smoke and preventing fire. Therefore, smoke exhaust fire dampers are needed.

[0003] The patent with publication number CN220452755U discloses an explosion-proof smoke exhaust fire damper, which has multiple reinforcing plates with hidden grooves arranged inside an outer frame, and multiple sealing plates arranged one-to-one between the multiple reinforcing plates. Under the drive of a driving component, the multiple sealing plates can be driven to slide in and out of the hidden grooves. After sliding out of the hidden grooves, the multiple sealing plates can block multiple spaces, thereby blocking the inside of the outer frame to play a fire-blocking role. The two sides of the multiple sealing plates are respectively docked with the hidden grooves and the docking grooves. The reinforcing plates can be used to increase the supporting force to prevent the sealing plates from deforming under high-intensity impact, thereby ensuring the high-intensity fire-blocking requirements of the explosion-proof smoke exhaust fire damper.

[0004] However, when the above device is in use, in order to increase the sealing performance, the gap between the sealing plate and the hidden groove and the docking groove is small, and the sealing plate is easily squeezed by the side wall of the hidden groove after being expanded and deformed by heat, causing the sealing plate to jam the column, which is not conducive to the normal use of the explosion-proof smoke exhaust fire damper. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when the existing device is in use, in order to increase the sealing performance, the gap between the sealing plate and the hidden groove and the docking groove is small, and the sealing plate is easily squeezed by the side wall of the hidden groove after being expanded and deformed by heat, causing the sealing plate to jam the column, which is not conducive to the normal use of the explosion-proof smoke exhaust fire damper.

[0006] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: an explosion-proof smoke exhaust fire damper, including an outer frame, and also including a connecting drive mechanism and a flip sealing mechanism arranged on the outer frame; the connecting drive mechanism includes a driving groove and a connecting shaft, the driving groove is arranged on the bottom wall of the outer frame, a driving assembly is arranged in the driving groove, the connecting shaft is rotatably arranged on the bottom wall of the driving groove, a plurality of connecting shafts are arranged side by side, the connecting shaft passes through the top wall of the driving groove and extends out, a gear is arranged on the connecting shaft, and the gear is connected to the driving assembly.

[0007] Furthermore, the driving assembly includes a movable groove and an electric push rod, the movable groove is arranged through the bottom wall of the driving groove, the electric push rod is arranged on the bottom wall of the outer frame, a connecting block is provided at the output end of the electric push rod, the connecting block is movably arranged through the movable groove, a push plate is fixedly connected to the connecting block, a rack is provided on the push plate, and the rack is meshed with the gear.

[0008] Furthermore, the flip sealing mechanism includes a fixing plate and sealing blades, the fixing plate is arranged on the side walls of the outer frame, and the sealing blades are connected to the connecting shaft.

[0009] Furthermore, the side walls of the fixing plate and the sealing blade are both arranged at an inclination.

[0010] Preferably, sealing gaskets are provided on the side walls of both sides of the sealing blade, and the material of the sealing gaskets is rubber.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: the utility model provides an explosion-proof smoke exhaust fire damper, which, by setting a rack and a gear, utilizes an electric push rod to drive the push plate, which can drive the connecting shaft, thereby flipping the sealing blades to achieve closure of the external frame, and at the same time, with the inclined setting of the sealing gasket and the two sides of the sealing blade, the sealing between the sealing blades can be improved, and the smoke and fire blocking effect of the protective valve can be improved. In addition, the sealing blades are less affected by heat and will not get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structural diagram of an explosion-proof smoke exhaust fire damper proposed by the utility model;

[0013] Figure 2 This is a horizontal cross-sectional structural diagram of an explosion-proof smoke exhaust fire damper proposed by the utility model;

[0014] Figure 3 This is a horizontal cross-sectional structural diagram of a driving groove of an explosion-proof smoke exhaust fire damper proposed by the utility model;

[0015] Figure 4 for Figure 2 A partial enlarged view of point A in the middle.

[0016] Among them, 1. outer frame, 2. connecting drive mechanism, 3. flip sealing mechanism, 4. driving groove, 5. connecting shaft, 6. driving assembly, 7. gear, 8. movable groove, 9. electric push rod, 10. connecting block, 11. push plate, 12. rack, 13. fixed plate, 14. sealing blade, 15. sealing gasket. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-4 As shown, an explosion-proof smoke exhaust fire damper proposed by the utility model includes an outer frame 1, and also includes a connecting drive mechanism 2 and a flip sealing mechanism 3 arranged on the outer frame 1; the connecting drive mechanism 2 includes a driving groove 4 and a connecting shaft 5, the driving groove 4 is arranged on the bottom wall of the outer frame 1, a driving assembly 6 is arranged in the driving groove 4, the connecting shaft 5 is rotatably arranged on the bottom wall of the driving groove 4, a plurality of connecting shafts 5 are arranged side by side, the connecting shaft 5 passes through the top wall of the driving groove 4 and extends out, a gear 7 is arranged on the connecting shaft 5, and the gear 7 is connected to the driving assembly 6. When encountering a fire, after the temperature sensor detects that the temperature reaches a certain set value, the driving assembly 6 is started to drive the gear 7, which drives the connecting shaft 5 to rotate, and then the flip sealing mechanism 3 is adjusted to close the channel of the outer frame 1.

[0020] like Figure 1 and 3 As shown, the driving assembly 6 includes a movable groove 8 and an electric push rod 9. The movable groove 8 is penetrated on the bottom wall of the driving groove 4. The electric push rod 9 is arranged on the bottom wall of the outer frame 1. The output end of the electric push rod 9 is provided with a connecting block 10. The connecting block 10 is movably penetrated through the movable groove 8. A push plate 11 is fixedly connected to the connecting block 10. The push plate 11 is provided with a rack 12. The rack 12 is meshed with the gear 7. When the electric push rod 9 is started, the connecting block 10 is driven to move, the connecting block 10 drives the push plate 11 to move, the push plate 11 drives the rack 12 to move, and the gear 7 is meshed and driven by the rack 12, so that the connecting shaft 5 is rotated.

[0021] like Figure 2As shown, the flip sealing mechanism 3 includes a fixed plate 13 and a sealing blade 14. The fixed plate 13 is arranged on the side walls of the outer frame 1. The sealing blade 14 is connected to the connecting shaft 5. The side walls of the fixed plate 13 and the sealing blade 14 are inclined. Sealing gaskets 15 are arranged on the side walls of the sealing blade 14. The material of the sealing gasket 15 is rubber. The rotation of the connecting shaft 5 drives the sealing blade 14 to rotate, so that the side walls of the sealing blade 14 contact and overlap, and cooperate with the sealing gasket 15 and the fixed plate 13 to close the channel of the outer frame 1 to reduce the passage of smoke and flames.

[0022] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An explosion-proof smoke exhaust fire damper, comprising an outer frame, characterized in that: It also includes a connecting drive mechanism and a flip sealing mechanism arranged on the outer frame; the connecting drive mechanism includes a driving groove and a connecting shaft, the driving groove is arranged on the bottom wall of the outer frame, a driving assembly is arranged in the driving groove, the connecting shaft is rotatably arranged on the bottom wall of the driving groove, a plurality of connecting shafts are arranged side by side, the connecting shaft passes through the top wall of the driving groove and extends out, a gear is arranged on the connecting shaft, and the gear is connected to the driving assembly.

2. The explosion-proof smoke exhaust fire damper according to claim 1, characterized in that: The driving assembly includes a movable groove and an electric push rod. The movable groove is penetrated on the bottom wall of the driving groove, and the electric push rod is arranged on the bottom wall of the outer frame. A connecting block is provided at the output end of the electric push rod. The connecting block movably penetrates the movable groove. A push plate is fixedly connected to the connecting block, and a rack is provided on the push plate. The rack is meshed with a gear.

3. The explosion-proof smoke exhaust fire damper according to claim 2, characterized in that: The flip sealing mechanism comprises a fixing plate and sealing blades, wherein the fixing plate is arranged on the side walls of both sides of the outer frame, and the sealing blades are connected to the connecting shaft.

4. The explosion-proof smoke exhaust fire damper according to claim 3, characterized in that: The side walls of the fixing plate and the sealing blades are both arranged in an inclined manner.

5. The explosion-proof smoke exhaust fire damper according to claim 4, characterized in that: Sealing pads are arranged on the side walls of both sides of the sealing blade, and the material of the sealing pads is rubber.

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