Smoke exhaust composite air pipe with high sealing performance

Abstract

The utility model discloses a high leakproofness smoke exhaust composite air pipe, which relates to the technical field of air pipes and comprises a first air pipe, a second air pipe is arranged on one side of the first air pipe, a sealing component is arranged on one side in the first air pipe, and a filtering mounting component is arranged on one side, far away from the first air pipe, of the second air pipe. The sealing assembly comprises four sets of piston cylinders fixedly connected to one side of the interior of the first air pipe. The second air pipe is attached to the first air pipe to extrude the piston rod, so that air enters the sealing air bag through the air pipe, the sealing air bag is expanded, the connecting position of the first air pipe and the second air pipe is sealed, air leakage and air leakage are effectively prevented, safety and reliability of a smoke exhaust system are enhanced, personnel safety is guaranteed, and the service life of the smoke exhaust system is prolonged. Meanwhile, the operation efficiency of the device is also improved, and harmful substances such as fine particulate matters, bacteria and viruses in the flue gas can be effectively removed by mounting a filter screen, so that environmental pollution is prevented.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, specifically a high-sealing smoke exhaust composite duct. Background Technology

[0002] Air ducts are a type of municipal infrastructure used to circulate air and reduce the concentration of harmful gases. Their main applications include: dust removal, smoke extraction, and oil extraction ducts for industrial pollution control; air supply ducts for industrial environments or workplace comfort; gas extraction systems for coal mines; and supply and return air systems for coal mine environmental control, etc.

[0003] The existing patent (publication number: CN 111706726 A) discloses a composite air duct that combines return and exhaust air and smoke exhaust. By adding high-temperature gaskets and improving the misalignment and fastening of connectors, the outer lining and inner lining of the air duct are not directly connected, which plays a role in heat insulation and prevents the cold air in the ventilation duct from being transferred to the outer lining of the air duct through the connectors, thus preventing the generation of condensate.

[0004] However, the above technical solution still has certain defects. When using this composite air duct, multiple sections of composite air duct need to be connected and fixed together. The existing method usually uses bolts for fixing, but leakage is prone to occur at the connection position of the two sets of composite air ducts fixed by bolts, which affects the safety and reliability of the smoke exhaust system and reduces the operating efficiency of the device. Therefore, a high-sealing smoke exhaust composite air duct is proposed. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a high-sealing smoke exhaust composite duct to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-sealing smoke exhaust composite duct, comprising a first duct, a second duct provided on one side of the first duct, and a sealing component provided on one side inside the first duct, and a filter installation component provided on the side of the second duct away from the first duct;

[0007] The sealing assembly includes four sets of piston cylinders fixedly connected to one side of the inside of the first air duct. A piston is slidably connected to the inner wall of the piston cylinder. A piston rod is welded to one side of the piston. A connecting spring is sleeved on the outer wall of the piston rod. An air pipe is connected to one side of the outer wall of the piston cylinder. A sealing airbag is fixedly connected to the end of the air pipe away from the piston cylinder. The sealing airbag is snapped into the connection position of the first air duct and the second air duct.

[0008] The filter installation assembly includes two sets of grooves inside the second air duct. Insert blocks are slidably connected inside the grooves. An inclined block is slidably connected to one side of the insert block. A limit block is fixedly connected to the side of the inclined block near the insert block, and a return spring is fixedly connected to the side of the inclined block away from the limit block. A T-shaped block is snapped into the end of the limit block near the insert block. A vertical plate is welded to the side of the T-shaped block away from the insert block, and a filter screen is slidably connected to the inner side of the vertical plate.

[0009] As a preferred technical solution of the high-sealing smoke exhaust composite duct of this utility model, the first duct and the second duct are fixedly connected by bolts.

[0010] As a preferred technical solution of the high-sealing smoke exhaust composite duct of this utility model, one end of the connecting spring is fixedly connected to the piston, and the other end of the connecting spring is fixedly connected to one side of the inner wall of the piston cylinder.

[0011] As a preferred technical solution of the high-sealing smoke exhaust composite duct of this utility model, a horizontal plate is welded to the front end of the insertion block, and the horizontal plate passes through the side wall of the second duct and is slidably connected to it.

[0012] As a preferred technical solution of the high-sealing smoke exhaust composite duct of this utility model, the filter screen is located on the side of the second duct away from the first duct, and the vertical plate is slidably connected to the second duct.

[0013] As a preferred technical solution for a high-sealing smoke exhaust composite duct of this utility model, the two sides of the end of the T-shaped block are arc-shaped.

[0014] In summary, the present invention has the following main advantages:

[0015] 1. This utility model uses a second air duct to press against the piston rod of the first air duct, allowing gas to enter the sealed airbag through the air duct. This causes the sealed airbag to expand, thereby sealing the connection between the first and second air ducts. This effectively prevents air leakage, enhances the safety and reliability of the smoke exhaust system, ensures personnel safety, and improves the operating efficiency of the device. At the same time, by installing a filter screen, it can effectively remove fine particulate matter, bacteria, viruses and other harmful substances from the smoke, preventing environmental pollution.

[0016] 2. This utility model allows the limiting block to disengage from the T-shaped block by pressing the horizontal plates on both sides. Then, the vertical plate can be removed from the inside of the second air duct to clean the filter screen. This effectively improves the efficiency of filter screen replacement or cleaning. At the same time, by regularly replacing or cleaning the filter screen, the continuous and efficient operation of the smoke exhaust system can be ensured, and pipe blockage can be reduced. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall components of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the overall components of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the sealing component of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the filter installation assembly of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0022] In the diagram: 100, first duct; 110, second duct;

[0023] 200, Sealing assembly; 210, Piston cylinder; 220, Piston; 230, Piston rod; 240, Connecting spring; 250, Air tube; 260, Sealing airbag;

[0024] 300. Filter installation assembly; 310. Insert block; 311. Horizontal plate; 320. Inclined block; 321. Groove; 330. Limiting block; 340. Return spring; 350. T-block; 360. Vertical plate; 370. Filter screen. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] A high-sealing composite smoke exhaust duct, such as Figure 1-5 As shown, it includes a first air duct 100, a second air duct 110 is provided on one side of the first air duct 100, and a sealing assembly 200 is provided on one side inside the first air duct 100, and a filter installation assembly 300 is provided on the side of the second air duct 110 away from the first air duct 100.

[0028] The sealing assembly 200 includes four sets of piston cylinders 210 fixedly connected to one side of the inside of the first air duct 100. A piston 220 is slidably connected to the inner wall of the piston cylinder 210. A piston rod 230 is welded to one side of the piston 220. A connecting spring 240 is sleeved on the outer wall of the piston rod 230. An air pipe 250 is connected to one side of the outer wall of the piston cylinder 210. A sealing airbag 260 is fixedly connected to the end of the air pipe 250 away from the piston cylinder 210. The sealing airbag 260 is snapped into the connection position of the first air duct 100 and the second air duct 110.

[0029] The filter installation assembly 300 includes two sets of grooves 321 formed inside the second air duct 110. A plug 310 is slidably connected inside the groove 321. An inclined block 320 is slidably connected to one side of the plug 310. A limit block 330 is fixedly connected to the side of the inclined block 320 near the plug 310. A return spring 340 is fixedly connected to the side of the inclined block 320 away from the limit block 330. A T-shaped block 350 is snapped into the end of the limit block 330 near the plug 310. A vertical plate 360 ​​is welded to the side of the T-shaped block 350 away from the plug 310. A filter screen 370 is slidably connected to the inner side of the vertical plate 360.

[0030] The first duct 100 and the second duct 110 are connected and fixed together with bolts. When the second duct 110 is in contact with the first duct 100, it compresses the piston rod 230, causing the piston rod 230 to drive the piston 220 to compress the gas inside the piston cylinder 210 and stretch the connecting spring 240. This allows the gas to enter the sealing airbag 260 through the air pipe 250, causing the sealing airbag 260 to expand and seal the connection between the first duct 100 and the second duct 110, effectively preventing air and gas leakage, enhancing the safety and reliability of the smoke exhaust system, ensuring personnel safety, and improving the operating efficiency of the device. Furthermore, the installation of the filter screen 370 effectively... The system removes fine particulate matter, bacteria, viruses, and other harmful substances from the flue gas, preventing environmental pollution. During prolonged use, pressing the horizontal plates 311 on both sides moves the insert block 310, causing it to adhere to one side of the inclined block 320 and compress it. This causes the inclined block 320 to move the limiting block 330, compressing the reset spring 340 until the limiting block 330 disengages from the T-shaped block 350. Then, the vertical plate 360 ​​is removed from the second duct 110, and the filter screen 370 is cleaned. This effectively improves the efficiency of filter screen 370 replacement or cleaning. Regular replacement or cleaning of the filter screen 370 ensures the continuous and efficient operation of the exhaust system and reduces duct blockage.

[0031] Please refer to this carefully. Figures 1 to 3 The first air duct 100 and the second air duct 110 are fixedly connected by bolts. One end of the connecting spring 240 is fixedly connected to the piston 220, and the other end of the connecting spring 240 is fixedly connected to one side of the inner wall of the piston cylinder 210.

[0032] The connecting spring 240 facilitates the reset of the piston 220, and the bolts enhance the fixing effect between the first air duct 100 and the second air duct 110.

[0033] Please refer to this carefully. Figure 4 and Figure 5 The front end of the insert 310 is welded with a horizontal plate 311, which passes through the side wall of the second air duct 110 and is slidably connected to it.

[0034] The horizontal plate 311 makes it easy for staff to press the insert 310 to remove the filter screen 370.

[0035] Please refer to this carefully. Figure 4 and Figure 5 The filter screen 370 is located on the side of the second air duct 110 away from the first air duct 100. The vertical plate 360 ​​is slidably connected to the second air duct 110. The ends of the T-shaped block 350 are rounded on both sides.

[0036] The rounded ends of the T-block 350 make it easier to snap the filter screen 370 into place, thus improving installation efficiency.

[0037] In use, the first duct 100 and the second duct 110 are connected and fixed together with bolts. When the second duct 110 is in contact with the first duct 100, it compresses the piston rod 230, causing the piston rod 230 to drive the piston 220 to compress the gas inside the piston cylinder 210 and stretch the connecting spring 240. This allows the gas to enter the sealing airbag 260 through the air pipe 250, causing the sealing airbag 260 to expand and seal the connection between the first duct 100 and the second duct 110, effectively preventing air and gas leakage, enhancing the safety and reliability of the smoke exhaust system, ensuring personnel safety, and improving the operating efficiency of the device. Furthermore, the installation of the filter screen 370 effectively removes fine particulate matter and fine particles from the smoke. To prevent harmful substances such as bacteria and viruses from causing environmental pollution, when used for a long time, pressing the horizontal plates 311 on both sides moves the insert block 310, causing the insert block 310 to fit against one side of the inclined block 320 and squeeze it, causing the inclined block 320 to move the limiting block 330 to compress the reset spring 340 until the limiting block 330 disengages from the T-shaped block 350. Then, the vertical plate 360 ​​is removed from the inside of the second air duct 110 to clean the filter screen 370, effectively improving the efficiency of filter screen 370 replacement or cleaning. At the same time, by regularly replacing or cleaning the filter screen 370, the continuous and efficient operation of the smoke exhaust system can be ensured, and pipe blockage can be reduced. The parts not mentioned in this device are the same as or can be implemented using existing technologies.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-sealing smoke exhaust composite duct comprising a first duct (100), characterized in that: The first air pipe (100) is provided with a second air pipe (110) on one side, and a sealing assembly (200) is arranged on the inner side of the first air pipe (100); the second air pipe (110) is provided with a filter mounting assembly (300) on the side away from the first air pipe (100); The sealing assembly (200) comprises four groups of piston cylinders (210) fixedly connected to the inner side of the first air pipe (100); the piston cylinders (210) are slidably connected with pistons (220) on the inner walls; the pistons (220) are welded with piston rods (230) on one side; the piston rods (230) are sleeved with connecting springs (240) on the outer walls; the piston cylinders (210) are connected with air tubes (250) on one side of the outer walls; the air tubes (250) are fixedly connected with sealing air bags (260) on the ends away from the piston cylinders (210); and the sealing air bags (260) are clamped at the connecting positions of the first air pipe (100) and the second air pipe (110). The filter mounting assembly (300) comprises two groups of grooves (321) formed in the inner side of the second air pipe (110); the grooves (321) are slidably connected with plug blocks (310); the plug blocks (310) are slidably connected with inclined blocks (320) on one side; the inclined blocks (320) are fixedly connected with limiting blocks (330) on the side close to the plug blocks (310); the inclined blocks (320) are fixedly connected with return springs (340) on the side away from the limiting blocks (330); the limiting blocks (330) are clamped with T-shaped blocks (350) on the ends close to the plug blocks (310); the T-shaped blocks (350) are welded with vertical plates (360) on the side away from the plug blocks (310); and the vertical plates (360) are slidably connected with filter screens (370) on the inner sides.

2. The high-sealing smoke evacuation composite air tube according to claim 1, characterized in that: The first air pipe (100) and the second air pipe (110) are fixedly connected by bolts.

3. The high-sealing composite smoke exhaust duct according to claim 1, characterized in that: One end of the connecting spring (240) is fixedly connected with the piston (220), and the other end is fixedly connected with the inner wall of the piston cylinder (210).

4. The high-sealing composite smoke exhaust duct according to claim 1, characterized in that: The plug block (310) is welded with a horizontal plate (311) on the front end; the horizontal plate (311) penetrates through the side wall of the second air pipe (110) and is slidably connected therewith.

5. The high-sealing composite smoke exhaust duct according to claim 1, wherein: The filter screen (370) is arranged on the side of the second air pipe (110) away from the first air pipe (100); and the vertical plate (360) is slidably connected with the second air pipe (110).

6. The high-sealing composite smoke exhaust duct according to claim 1, wherein: The T-shaped block (350) is arc-shaped on both sides of the end.

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