Fireproof air pipe

Abstract

The utility model provides a fireproof air pipe which comprises a first air pipe body and a second air pipe body, the two ends of the first air pipe body are fixedly connected with first connecting plates respectively, the two ends of the second air pipe body are fixedly connected with second connecting plates respectively, the first connecting plates are fixedly connected with two symmetrical arc-shaped clamping pieces, and the second connecting plates are fixedly connected with two symmetrical arc-shaped clamping pieces. The second connecting plate is provided with two reserved grooves, and the two symmetrical arc-shaped clamping pieces can penetrate through the two reserved grooves and are locked in a sliding mode through the two reserved grooves. The first connecting plate and the second connecting plate are each detachably connected with a pair of hanging rods. Through the mode that the arc-shaped clamping pieces and the reserved grooves are installed on the surfaces of the upper air pipe connector and the lower air pipe connector, the installation and disassembly processes of the fireproof air pipe are simplified, a series of troubles caused when the air pipe is disassembled and installed in the overhauling process are avoided, and the problem that in the prior art, manpower cost is wasted when the fireproof air pipe is overhauled is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof air duct devices, in particular to a fireproof air duct. Background Art

[0002] Fireproof ducts, also known as fire-resistant ducts or smoke exhaust ducts, are pipes mainly installed on the supply and return air ducts of ventilation and air-conditioning systems or on the ducts of mechanical smoke exhaust systems.

[0003] At present, fireproof air ducts are usually made by covering iron air ducts with fireproof materials, or using metal composite fire-resistant air duct integrated panels, and then hanging them on the ceiling of the house with hangers. Although this type of fireproof air duct is easy to manufacture and produce, in order to ensure stable installation, it is necessary to fix the air ducts with multiple bolts. The speed of disassembly and installation is very slow, and another staff member is always required to stabilize and support the air duct during the disassembly process to prevent it from accidentally falling, which will inevitably increase the manpower disassembly and installation costs. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a fireproof air duct, which solves the problem of waste of manpower cost during maintenance of the fireproof air duct in the prior art.

[0005] According to the technical solution of the utility model, a fireproof air duct includes a first air duct and a second air duct, the two ends of the first air duct are respectively fixedly connected with a first connecting plate, the two ends of the second air duct are respectively fixedly connected with a second connecting plate, the first connecting plate is fixedly connected with two symmetrical arc-shaped clips, and the second connecting plate is provided with two reserved grooves for the two symmetrical arc-shaped clips to pass through and slide and lock; the first connecting plate and the second connecting plate are also respectively detachably connected with a pair of suspension rods.

[0006] The technical principle of the utility model is: when the fireproof air duct needs to be disassembled, the hanger of the first air duct is first disassembled, and then the staff rotates the first air duct so that the arc-shaped clamp is disengaged from the reserved groove, and finally the bolts are removed to directly pull apart the first connecting plate and the second connecting plate. When installing, it is only necessary to align the first air duct under the first connecting plate with the second air duct on the second connecting plate up and down, and then insert the various arc-shaped clamps of the first air duct into the reserved grooves corresponding to the second air duct, and rotate the first air duct to clamp the arc-shaped clamps, and then tighten the bolts and fix the subsequent hangers. In this way, the problem of waste of manpower costs during maintenance of the fireproof air duct in the prior art is solved.

[0007] Compared with the prior art, the utility model has the following beneficial effects: by installing arc-shaped clips and reserved grooves on the surface of the air duct interface, the installation and disassembly process of the fire-proof air duct is simplified. The staff can first connect and fix the arc-shaped clips and reserved grooves of the front and rear air ducts to each other, and then carry out the disassembly and assembly work, which solves the problem of waste of manpower costs during maintenance of the fire-proof air duct in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the overall structure of the first air duct in an embodiment of the utility model.

[0009] Figure 2 This is a schematic diagram of the overall structure of the second air duct in an embodiment of the utility model.

[0010] Figure 3 This is a material layer diagram inside the pipe wall of an embodiment of the utility model.

[0011] Figure 4 This is a schematic diagram of the suspension rod connection of an embodiment of the utility model.

[0012] Figure 5 This is a diagram showing the connection between the first air duct and the second air duct of the embodiment of the utility model

[0013] In the above drawings: 1. first connecting plate; 2. second connecting plate; 3. first air duct; 4. second air duct; 5. arc-shaped clamp; 501. arc plate; 502. base; 6. reserved groove; 7. soft aerogel fireproof composite material; 8. hard aerogel fireproof board; 9. hanger; 10. bolt hole; 11. sealing ring; 12. connecting block; 13. first bolt. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1-5As shown, an embodiment of the utility model proposes a fireproof air duct, which includes a first air duct 3 and a second air duct 4, wherein the two ends of the first air duct 3 are respectively fixedly connected with a first connecting plate 1, and the two ends of the second air duct 4 are respectively fixedly connected with a second connecting plate 2, the first connecting plate 1 is fixedly connected with two symmetrical arc-shaped clips 5, and the second connecting plate 2 is provided with two reserved grooves 6 for the two symmetrical arc-shaped clips 5 to pass through and slide and lock; the first connecting plate 1 and the second connecting plate 2 are also respectively detachably connected with a pair of suspension rods 9.

[0017] When the fireproof air duct needs to be disassembled, the hanging rod 9 of the first air duct 3 is disassembled first, and then the staff rotates the first air duct 3 so that the arc clamp 5 is disengaged from the reserved groove 6, and finally the bolts are removed to directly pull apart the first connecting plate 1 and the second connecting plate 2. When installing, it is only necessary to align the first air duct 3 under the first connecting plate 1 with the second air duct 4 on the second connecting plate 2 up and down, and then insert the various arc clamps 5 of the first air duct 3 into the reserved grooves 6 corresponding to the second air duct 4, and rotate the first air duct 3 to clamp the arc clamp 5, and then tighten the bolts and fix the subsequent hanging rods. By installing the arc clamps 5 and the reserved grooves 6 on the upper and lower air duct interface surfaces, the installation and disassembly process of the fireproof air duct is simplified. The staff can first fix the front and rear air ducts with the arc clamps 5 and the reserved grooves 6, and then carry out the disassembly and assembly work, which solves the problem of waste of manpower costs during maintenance of the fireproof air duct in the prior art.

[0018] According to one embodiment of the utility model, Figure 1 As shown, a fireproof air duct, the first air duct 3 and the second air duct 4 are provided with an interlayer in the pipe wall, and the interlayer is provided with a 10mm thick soft aerogel fireproof composite material 7. Various fireproof air ducts have appeared in the market, the hard insulation material air duct has poor insulation performance, the elastic insulation material air duct has poor strength, and the hard aerogel fireproof board 8 is a solid insulation material with the lowest thermal conductivity in the 400°C temperature range.

[0019] According to one embodiment of the utility model, Figure 3 As shown, a fireproof air duct is provided in the interlayer with a 20 mm thick hard aerogel fireproof board 8 outside the soft aerogel fireproof composite material 7. The soft aerogel fireproof composite material 7 in this solution is an elastic material with ultra-low thermal conductivity. Combined with the hard aerogel fireproof board 8, the air duct can not only meet the requirements of fireproof integrity and fireproof insulation of the fire smoke exhaust air duct, but also improve the strength and flexibility of the air duct. The flexible fireproof insulation material also reduces noise.

[0020] According to one embodiment of the utility model, Figure 4As shown, a fireproof air duct, a connection block 12 is provided on one side of the first connection plate 1 and the second connection plate 2 away from the connection of the first connection plate 1 and the second connection plate 2, and the suspension rod 9 is connected to the connection block 12 by a first bolt 13. In this solution, the suspension rod 9 is disassembled and assembled on the connection block 12 by the first bolt 13, so that it will not cause any influence when the first air duct 3 and the second air duct 4 need to be rotated when docking.

[0021] According to one embodiment of the utility model, Figure 1 As shown, a fireproof air duct, a bolt hole 10 is provided between the adjacent first connecting plate 1 and the second connecting plate 2, and the two are connected by bolts through the bolt hole 10. In this solution, in order to ensure that the connection between the first air duct 3 and the second air duct 4 is more secure, bolt holes 10 are also provided on the surfaces of the first connecting plate 1 and the second connecting plate 2, so as to use bolts to make the connection more secure.

[0022] According to one embodiment of the utility model, Figure 5 As shown, a fireproof air duct, the outer periphery of the adjacent first connecting plate 1 and the second connecting plate 4 is sleeved with an elastic sealing ring 11. In this solution, the sealing ring 11 is sleeved at the joint interface to ensure the sealing of the air duct joint, reduce the toxic gas from entering the air duct, and ensure the safety of the air in the air duct. When disassembling, it can be pulled down by using the principle of elasticity.

[0023] According to one embodiment of the utility model, Figure 1 As shown, a fireproof air duct, the arc-shaped clamp 5 includes an arc plate 502 and a base 501, the base 501 is fixedly connected to the first connecting plate 1, the base 501 can slide in the reserved groove 6, the arc plate 502 can pass through the reserved groove 6 and can clamp the second connecting plate 2 between the reserved groove 6 and the first connecting plate 1. In this solution, the arc plate 502 in the arc-shaped clamp 5 is inserted into the reserved groove 6 and locked, which can ensure the reliability and simplicity of the connection to the greatest extent.

[0024] According to one embodiment of the utility model, Figure 1 As shown, a fireproof air duct, the spacing between the same pair of the suspension rods 9 is greater than the hypotenuse length of the end faces of the first air duct 3 and the second air duct 4. In this solution, since the first air duct 3 and the second air duct 4 need to be rotated when connected, in order to prevent the suspension rod 9 from blocking the rotation of the second air duct 4, the spacing between the same pair of suspension rods 9 is greater than the hypotenuse length of the end faces of the first air duct 3 and the second air duct 4.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fireproof air duct, characterized in that: The invention comprises a first air duct (3) and a second air duct (4), wherein the two ends of the first air duct (3) are respectively fixedly connected to a first connecting plate (1), and the two ends of the second air duct (4) are respectively fixedly connected to a second connecting plate (2), the first connecting plate (1) is fixedly connected to two symmetrical arc-shaped clamps (5), and the second connecting plate (2) is provided with two reserved grooves (6) for the two symmetrical arc-shaped clamps (5) to pass through and slide and lock; the first connecting plate (1) and the second connecting plate (2) are also respectively detachably connected to a pair of suspension rods (9).

2. A fireproof air duct according to claim 1, characterized in that: An interlayer is provided in the walls of the first air duct (3) and the second air duct (4), and a 10 mm thick soft aerogel fireproof composite material (7) is provided in the interlayer.

3. A fireproof air duct according to claim 2, characterized in that: A 20 mm thick hard aerogel fireproof board (8) is also provided in the interlayer and is located outside the soft aerogel fireproof composite material (7).

4. A fireproof air duct according to claim 1, characterized in that: A connecting block (12) is provided on one side of the first connecting plate (1) and the second connecting plate (2) away from the junction of the first connecting plate (1) and the second connecting plate (2), and the suspension rod (9) is connected to the connecting block (12) via a first bolt (13).

5. A fireproof air duct according to claim 1, characterized in that: A bolt hole (10) is provided between the adjacent first connecting plates (1) and second connecting plates (2), and the first connecting plates (1) and the second connecting plates (2) are connected by bolts through the bolt holes (10).

6. A fireproof air duct according to claim 1, characterized in that: An elastic sealing ring (11) is sleeved on the outer periphery of the adjacent first connecting plate (1) and the second connecting plate (2).

7. A fireproof air duct according to claim 1, characterized in that: The arc-shaped clamping member (5) comprises an arc plate (502) and a base (501); the base (501) is fixedly connected to the first connecting plate (1); the base (501) can slide in the reserved groove (6); the arc plate (502) can pass through the reserved groove (6) and can clamp the second connecting plate (2) between the reserved groove (6) and the first connecting plate (1).

8. The fireproof air duct according to claim 1, characterized in that: The distance between the same pair of suspension rods (9) is greater than the length of the hypotenuse of the end faces of the first air duct (3) and the second air duct (4).

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