Fireproof composite air pipe

Abstract

The utility model provides a fire-resistant composite air duct, which relates to the technical field of air ducts, and comprises a first air duct and a fixing component, one side of the first air duct is in threaded connection with a first bolt, one side of the first bolt is in threaded connection with a second air duct, the first air duct is provided with a sealing device by means of the fixing component, and the second air duct is provided with a second bolt. The sealing device comprises a rubber ring and a fixing frame, the rubber ring is arranged at the joint of the first air pipe and the second air pipe in a sleeving mode, one side of the fixing frame is in threaded connection with a second bolt, one side of the second bolt is rotationally connected with a pressing plate, and the pressing plate abuts against the rubber ring. The sealing performance of the connecting position of the first air pipe and the second air pipe can be improved, the situation that water easily enters a gap between the first air pipe and the second air pipe, then the gap is corroded, and air leaks from the connecting position of the first air pipe and the second air pipe is avoided, and therefore the using effect of the air pipe can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to a fire-resistant composite air duct. Background Art

[0002] An air duct is a pipeline used for ventilation and air conditioning. It introduces fresh air into a building and discharges polluted air from the building.

[0003] A fire-resistant composite air duct combines a metal layer, a heat-insulating layer and a fire-resistant layer to meet the requirements of high-standard fire-resistant performance. When installing the air duct, the first air duct and the second air duct are fixed by the first bolt. When the connection between the first air duct and the second air duct is in use, water easily enters the gap between them, then corrodes the gap, and then causes air leakage at the connection between the first air duct and the second air duct, thus resulting in problems affecting the use effect of the air duct. Summary of the Utility Model

[0004] The utility model provides a fire-resistant composite air duct to solve the problem that when the connection between the first air duct and the second air duct is in use, water easily enters the gap between them, then corrodes the gap, and then causes air leakage at the connection between the first air duct and the second air duct, thus resulting in problems affecting the use effect of the air duct.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A fire-resistant composite air duct includes a first air duct and a fixing component. A first bolt is threadedly connected to one side of the first air duct, and a second air duct is threadedly connected to one side of the first bolt. The first air duct is provided with a sealing device by means of the fixing component. The sealing device includes a rubber ring and a fixing frame. The rubber ring is sleeved on the connection between the first air duct and the second air duct. A second bolt is threadedly connected to one side of the fixing frame, and a pressing plate is rotatably connected to one side of the second bolt. The pressing plate abuts against the rubber ring.

[0006] The effects achieved by the above components are as follows: A fire-resistant composite air duct combines a metal layer, a heat-insulating layer and a fire-resistant layer to meet the requirements of high-standard fire-resistant performance. When installing the air duct, the first air duct and the second air duct are fixed by the first bolt. After the first air duct and the second air duct are fixed, the rubber ring is sleeved on the connection between them, and then the second bolt on the fixing frame is rotated to drive the pressing plate to squeeze and fix the rubber ring at the connection between the first air duct and the second air duct. By using the sealing device, the sealing performance at the connection between the first air duct and the second air duct can be improved, avoiding the situation that water easily enters the gap between them, then corrodes the gap, and then causes air leakage at the connection between the first air duct and the second air duct, thus improving the use effect of the air duct.

[0007] Preferably, a limiting rod is fixedly connected to one side of the fixing frame, and the limiting rod is slidably connected to the fixing frame.

[0008] The effect achieved by the above components is as follows: By using the limiting rod that slides inside the fixing frame to restrict the movement trajectory of the pressing plate, the pressing plate can move more stably.

[0009] Preferably, a number of anti-slip blocks are fixedly connected to one side of the second bolt, and the number of anti-slip blocks are arranged equidistantly on one side of the second bolt.

[0010] The effect achieved by the above components is as follows: By using the anti-slip blocks, the friction between the second bolt and the operator is increased, making the second bolt easier to rotate.

[0011] Preferably, a bearing is fixedly connected to one side of the second bolt, and the outer ring of the bearing is fixedly connected to the pressing plate.

[0012] The effect achieved by the above components is as follows: By using the bearing, the friction between the second bolt and the pressing plate is reduced, making the second bolt easier to rotate on the pressing plate.

[0013] One side of the rubber ring is fixedly connected with a control block, and the cross-section of the control block is annular.

[0014] The effect achieved by the above components is as follows: When moving the rubber ring, the contact area between the rubber ring and the operator can be increased through the control block, so that the rubber ring can be moved more easily.

[0015] Preferably, the fixing assembly includes a square pipe. One side of the square pipe is fixedly connected to the first air duct. A third bolt is threadedly inserted into the interior of the square pipe, and one side of the third bolt is threadedly connected to the fixing frame.

[0016] The effect achieved by the above components is as follows: When using the sealing device, the fixing frame can be inserted into the square pipe, and then the third bolt is rotated so that the third bolt passes through the square pipe and is connected to the fixing frame, and then the position of the fixing frame is fixed. By using the fixing assembly, the sealing device can be quickly fixed to the surface of the first air duct, thus facilitating the operator to use the sealing device.

[0017] Preferably, a gasket abuts against one side of the third bolt, and the size of the gasket is adapted to the size of the third bolt.

[0018] The effect achieved by the above components is as follows: By using the gasket, the contact area between the third bolt and the square pipe is increased, making the third bolt fix the fixing frame more firmly.

[0019] Preferably, a guiding plate is fixedly connected to one side of the square pipe, and the guiding plate is inclined and arranged on one side of the square pipe.

[0020] The effects achieved by the above components are as follows: By using the guide plate, the size on one side of the square pipe is increased, making it easier for the fixing frame to be inserted into the square pipe.

[0021] In summary, the beneficial effects of the present utility model are as follows:

[0022] By using the sealing device, the sealing performance at the connection between the first air duct and the second air duct can be improved, avoiding water ingress at the gap between the two, corrosion of the gap, and then air leakage at the connection between the first air duct and the second air duct, thereby improving the use effect of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the sealing device of the present utility model;

[0025] Figure 3 is of the present utility model Figure 2 is an enlarged view of part A;

[0026] Figure 4 is of the present utility model Figure 2 is an enlarged view of part B.

[0027] Legend: 1, first air duct; 2, sealing device; 21, rubber ring; 22, fixing frame; 23, second bolt; 24, pressing plate; 25, limiting rod; 26, anti-slip block; 27, bearing; 28, control block; 3, fixing component; 31, square pipe; 32, third bolt; 33, gasket; 34, guide plate; 4, second air duct; 5, first bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Referring to Figures 1-4 as shown, this embodiment discloses a fireproof composite air duct, including a first air duct 1 and a fixing component 3. One side of the first air duct 1 is threadedly connected with a first bolt 5, and one side of the first bolt 5 is threadedly connected with a second air duct 4. The first air duct 1 is provided with a sealing device 2 by means of the fixing component 3.

[0029] Referring to Figures 1-4As shown, this embodiment discloses that the sealing device 2 includes a rubber ring 21 and a fixing frame 22. The rubber ring 21 is sleeved at the connection of the first air duct 1 and the second air duct 4. One side of the fixing frame 22 is threadedly connected with a second bolt 23. One side of the second bolt 23 is rotatably connected with a pressing plate 24, and the pressing plate 24 abuts against the rubber ring 21. The fire-resistant composite air duct combines a metal layer, a heat-insulating layer and a fire-resistant layer to meet the high-standard fire-resistant performance requirements of the air duct. When installing the air duct, the first air duct 1 and the second air duct 4 are fixed by a first bolt 5. After the first air duct 1 and the second air duct 4 are fixed, the rubber ring 21 is sleeved at the connection of the two. Then, the second bolt 23 on the fixing frame 22 is rotated, so that the second bolt 23 drives the pressing plate 24 to squeeze and fix the rubber ring 21 at the connection of the first air duct 1 and the second air duct 4. By using the sealing device 2, the sealing performance at the connection of the first air duct 1 and the second air duct 4 can be improved, avoiding the situation that water easily enters the gap between the two, then corroding the gap, and then causing air leakage at the connection of the first air duct 1 and the second air duct 4, thereby improving the use effect of the air duct.

[0030] Refer to Figures 1-4 As shown, one side of the fixing frame 22 is fixedly connected with a limiting rod 25, and the limiting rod 25 is slidably connected with the fixing frame 22. The movement track of the pressing plate 24 is restricted by the limiting rod 25 sliding inside the fixing frame 22, so that the pressing plate 24 moves more stably. One side of the second bolt 23 is fixedly connected with a plurality of anti-slip blocks 26, and the plurality of anti-slip blocks 26 are arranged at equal intervals on one side of the second bolt 23. By using the anti-slip blocks 26, the friction between the second bolt 23 and the operator is increased, making the second bolt 23 easier to rotate. One side of the second bolt 23 is fixedly connected with a bearing 27, and the outer ring of the bearing 27 is fixedly connected with the pressing plate 24. By using the bearing 27, the friction between the second bolt 23 and the pressing plate 24 is reduced, making the second bolt 23 easier to rotate on the pressing plate 24. One side of the rubber ring 21 is fixedly connected with a control block 28, and the cross section of the control block 28 is annular. When moving the rubber ring 21, the contact area between the rubber ring 21 and the operator can be increased through the control block 28, so that the rubber ring 21 can be moved more easily.

[0031] Refer to Figures 1-4As shown, this embodiment discloses that the fixing component 3 includes a square pipe 31. One side of the square pipe 31 is fixedly connected to the first air duct 1. A third bolt 32 is threadedly inserted into the interior of the square pipe 31. One side of the third bolt 32 is threadedly connected to the fixing bracket 22. When using the sealing device 2, the fixing bracket 22 can be fixed, so that the fixing bracket 22 is inserted into the square pipe 31, and then the third bolt 32 is rotated to make the third bolt 32 pass through the square pipe 31 and connect with the fixing bracket 22, and then the position of the fixing bracket 22 is fixed. By using the fixing component 3, the sealing device 2 can be quickly fixed to the surface of the first air duct 1, thus facilitating the operator to use the sealing device 2.

[0032] Referring to Figures 1-4 As shown, this embodiment discloses that a gasket 33 abuts against one side of the third bolt 32, and the size of the gasket 33 is adapted to the size of the third bolt 32. By using the gasket 33, the contact area between the third bolt 32 and the square pipe 31 is increased, so that the third bolt 32 can fix the fixing bracket 22 more firmly. One side of the square pipe 31 is fixedly connected with a guiding plate 34, and the guiding plate 34 is obliquely arranged on one side of the square pipe 31. By using the guiding plate 34, the size of one side of the square pipe 31 is increased, so that the fixing bracket 22 can be more easily inserted into the interior of the square pipe 31.

[0033] Working principle: The fire-resistant composite air duct combines a metal layer, a heat-insulating layer and a fire-resistant layer to meet the high-standard fire-resistant performance requirements of the air duct. When installing the air duct, the first air duct 1 and the second air duct 4 are fixed by the first bolt 5. After the first air duct 1 and the second air duct 4 are fixed, the rubber ring 21 is sleeved at the connection between the two. Then, the second bolt 23 with an anti-slip block 26 on the fixing bracket 22 is rotated, so that the second bolt 23 drives the pressing plate 24 to squeeze and fix the rubber ring 21 at the connection between the first air duct 1 and the second air duct 4. By using the sealing device 2, the sealing performance at the connection between the first air duct 1 and the second air duct 4 can be improved, avoiding water from easily entering the gap between the two, then corroding the gap, and then causing air leakage at the connection between the first air duct 1 and the second air duct 4, thereby improving the use effect of the air duct.

[0034] When using the sealing device 2, the fixing bracket 22 can be fixed, so that the fixing bracket 22 is inserted into the square pipe 31 with a guiding plate 34, and then the third bolt 32 is rotated to make the third bolt 32 pass through the square pipe 31 and connect with the fixing bracket 22, and then the position of the fixing bracket 22 is fixed. By using the fixing component 3, the sealing device 2 can be quickly fixed to the surface of the first air duct 1, thus facilitating the operator to use the sealing device 2.

Claims

1. A fire-resistant composite air duct, comprising a first air duct (1) and a fixing assembly (3), characterized in that: One side of the first air duct (1) is threadedly connected to a first bolt (5), and one side of the first bolt (5) is threadedly connected to a second air duct (4). The first air duct (1) is provided with a sealing device (2) by means of a fixing assembly (3). The sealing device (2) comprises a rubber ring (21) and a fixing frame (22). The rubber ring (21) is sleeved at the connection between the first air duct (1) and the second air duct (4). One side of the fixing frame (22) is threadedly connected to a second bolt (23). One side of the second bolt (23) is rotatably connected to a pressure plate (24), and the pressure plate (24) abuts against the rubber ring (21).

2. The fire-resistant composite air duct according to claim 1, characterized in that: A limiting rod (25) is fixedly connected to one side of the fixing frame (22), and the limiting rod (25) is slidably connected to the fixing frame (22).

3. The fire-resistant composite air duct according to claim 2, characterized in that: A plurality of anti-sliding blocks (26) are fixedly connected to one side of the second bolt (23), and the plurality of anti-sliding blocks (26) are arranged at equal distances on one side of the second bolt (23).

4. The fire-resistant composite air duct according to claim 3, characterized in that: A bearing (27) is fixedly connected to one side of the second bolt (23), and an outer ring of the bearing (27) is fixedly connected to the pressure plate (24).

5. The fire-resistant composite air duct according to claim 4, characterized in that: A control block (28) is fixedly connected to one side of the rubber ring (21), and the cross section of the control block (28) is in the shape of a circular ring.

6. The fire-resistant composite air duct according to claim 5, characterized in that: The fixing assembly (3) comprises a square tube (31), one side of which is fixedly connected to the first air duct (1), a third bolt (32) is inserted into the inner thread of the square tube (31), and one side of which is threadedly connected to the fixing frame (22).

7. The fire-resistant composite air duct according to claim 6, characterized in that: A gasket (33) is abutted against one side of the third bolt (32), and the size of the gasket (33) is matched with the size of the third bolt (32).

8. The fire-resistant composite air duct according to claim 7, characterized in that: A guide plate (34) is fixedly connected to one side of the square passage (31), and the guide plate (34) is obliquely arranged on one side of the square passage (31).

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