Fireproof and heat-insulating composite air pipe

Abstract

The utility model provides a kind of fireproof heat-insulating composite air pipe, the fireproof heat-insulating composite air pipe, including air pipe, the inner chamber of air pipe is provided with heat insulation frame, the outside of air pipe is provided with fixed mechanism, the top of air pipe is provided with mounting mechanism, the both ends of air pipe are provided with connecting mechanism, fixed mechanism includes fixed sleeve, fixed sleeve is embedded and fixed in the both sides of air pipe, the inner chamber of fixed sleeve is provided with fixed peg, the outside of fixed peg is connected with fixed seat by screw thread, fixed seat is embedded and fixed in the inner wall of heat insulation frame, mounting mechanism includes connecting plate, connecting plate is fixedly connected to the top of air pipe, the side of connecting plate is fixedly connected with guide rod, the outside of guide rod is slidably connected with guide sleeve, the top of guide sleeve is fixedly connected with vertical rod, vertical rod is fixedly connected with mounting plate on the top.The utility model provides a kind of fireproof heat-insulating composite air pipe, solves the problem of current device construction complex and maintenance inconvenience.

Description

Technical Field

[0001] This utility model relates to the field of composite air duct technology, and in particular to a fireproof and heat-insulating composite air duct. Background Technology

[0002] Air ducts are piping systems used for air transport and distribution. There are two types: composite ducts and inorganic ducts. They can be classified according to cross-sectional shape and material. Stainless steel duct fabrication involves applying sealant (such as neutral silicone sealant) to seams, rivet seams, and the four corners of flanges. Before applying sealant, surface dust and oil should be removed. According to cross-sectional shape, ducts can be divided into circular ducts, rectangular ducts, and flat oval ducts, among others. Circular ducts have the lowest resistance but the largest height and are more complex to manufacture. Therefore, rectangular ducts are the most commonly used. According to material, ducts can be divided into metal ducts, composite ducts, and polymer ducts. In high-rise buildings, commercial complexes, hospitals, transportation hubs, and other places with strict fire safety requirements, ducts not only need to meet basic air supply and exhaust functions but also must have good fire resistance to prevent the spread of flames and smoke through the duct system.

[0003] Current fire-resistant and heat-insulating composite air ducts typically involve first installing metal ducts (such as galvanized steel sheet ducts), then covering the outside with fireproof boards to meet fire resistance requirements, and finally filling the outside of the fireproof boards or between the metal ducts and the fireproof boards with insulation cotton to meet heat insulation requirements. This approach has the following disadvantages:

[0004] Construction is complex and time-consuming: it requires multiple procedures (installing metal pipes, wrapping fireproof boards, and wrapping insulation layers), resulting in low installation efficiency.

[0005] Inconvenient maintenance: When the fireproof board or insulation layer is easily damaged, it is difficult to replace.

[0006] Therefore, it is necessary to provide a fireproof and heat-insulating composite air duct that is easy to install and maintain to solve the above-mentioned technical problems. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a fireproof and heat-insulating composite air duct that is easy to install and maintain.

[0008] The fireproof and heat-insulating composite air duct provided by this utility model includes an air duct, an insulation frame is provided in the inner cavity of the air duct, a fixing mechanism is provided on the outer side of the air duct, an installation mechanism is provided on the top of the air duct, and a connecting mechanism is provided at both ends of the air duct.

[0009] As a fireproof and heat-insulating composite air duct provided by this utility model, preferably, the fixing mechanism includes a fixing sleeve, which is embedded and fixed on both sides of the air duct. The fixing sleeve has a fixing bolt in its inner cavity, and the fixing bolt has a fixing seat threadedly connected to its outer side. The fixing seat is embedded and fixed to the inner wall of the heat insulation frame.

[0010] As a fireproof and heat-insulating composite air duct provided by this utility model, preferably, the installation mechanism includes a connecting plate, the connecting plate is fixedly connected to the top of the air duct, a guide rod is fixedly connected to one side of the connecting plate, a guide sleeve is slidably connected to the outer side of the guide rod, a vertical pole is fixedly connected to the top of the guide sleeve, and an installation plate is fixedly connected to the top of the vertical pole.

[0011] As a fireproof and heat-insulating composite air duct provided by this utility model, preferably, the installation mechanism further includes an adjusting rod, the adjusting rod is fixedly connected to one side of the connecting plate, an adjusting frame is slidably connected to the outer side of the adjusting rod, an adjusting bolt is provided in the inner cavity of the adjusting frame, and a fixing rod is fixedly connected to both sides of the adjusting frame, one end of the fixing rod is fixedly connected to the outer side of the guide sleeve.

[0012] As a fireproof and heat-insulating composite air duct provided by this utility model, preferably, the connecting mechanism includes a sealing frame, the sealing frame is fixedly connected to the outside of the air duct, a fireproof expansion sealing gasket is provided on one side of the sealing frame, a mating block is fixedly connected to one side of the fireproof expansion sealing gasket, and a mating groove is provided on one side of the sealing frame.

[0013] As a fireproof and heat-insulating composite air duct provided by this utility model, preferably, the heat insulation frame includes a first shell, a first fireproof and heat-insulating layer is provided on the inner side of the first shell, a second fireproof and heat-insulating layer is provided on the inner side of the first fireproof and heat-insulating layer, and a second shell is provided on the inner side of the second fireproof and heat-insulating layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When disassembling the insulation frame of this fireproof and heat-insulating composite duct, the user can unscrew the fixing bolts from the fixing seat to release the insulation frame. Then, the user can pull the insulation frame out of the duct to complete the disassembly. When installing a new insulation frame, simply insert the insulation frame into the duct, align the fixing sleeve with the fixing seat, and screw the fixing bolts back into the fixing seat. This device has a compact structure and is simple and convenient to construct. It integrates multiple layers of materials to form an insulation frame. Simply inserting the insulation frame into the duct achieves fireproof and heat-insulating effects, solving the problems of complex construction and inconvenient maintenance of current devices. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the fireproof and heat-insulating composite air duct provided by this utility model;

[0017] Figure 2 This is a top sectional view of a partial structure of this utility model;

[0018] Figure 3This is a side view cross-sectional structural diagram of the heat insulation frame of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the installation mechanism of this utility model;

[0020] Figure 5 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0021] Numbered in the diagram: 1. Air duct; 2. Insulation frame; 201. First shell; 202. First fireproof insulation layer; 203. Second fireproof insulation layer; 204. Second shell; 3. Fixing mechanism; 301. Fixing sleeve; 302. Fixing bolt; 303. Fixing seat; 4. Installation mechanism; 401. Connecting plate; 402. Guide rod; 403. Guide sleeve; 404. Upright; 405. Mounting plate; 406. Adjusting rod; 407. Adjusting frame; 408. Adjusting bolt; 409. Fixing rod; 5. Connecting mechanism; 501. Sealing frame; 502. Fireproof expansion sealing gasket; 503. Connecting block; 504. Connecting groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figures 1-5 A fireproof and heat-insulating composite air duct includes an air duct 1, an insulation frame 2 is provided in the inner cavity of the air duct 1, a fixing mechanism 3 is provided on the outer side of the air duct 1, an installation mechanism 4 is provided on the top of the air duct 1, and a connecting mechanism 5 is provided at both ends of the air duct 1.

[0024] In this embodiment: a support plate is provided at the bottom of the air duct 1, which can improve the stability of the device when placed on the ground. The air duct 1 can be suspended from the top of the building (above the ceiling and below the roof structure) by the installation mechanism 4.

[0025] As a technical optimization of this utility model, the fixing mechanism 3 includes a fixing sleeve 301, which is embedded and fixed on both sides of the air duct 1. The inner cavity of the fixing sleeve 301 is provided with a fixing bolt 302, and the outer side of the fixing bolt 302 is threadedly connected to a fixing seat 303, which is embedded and fixed on the inner wall of the heat insulation frame 2.

[0026] In this embodiment: When disassembling the heat insulation frame 2, the user can unscrew the fixing bolt 302 from the fixing seat 303 to release the fixation of the heat insulation frame 2. Then the user can pull the heat insulation frame 2 out of the air duct 1 to complete the disassembly of the heat insulation frame 2. When installing a new heat insulation frame 2, simply insert the heat insulation frame 2 into the air duct 1, align the fixing sleeve 301 with the fixing seat 303, and screw the fixing bolt 302 back into the fixing seat 303. This makes it easy for the user to disassemble and assemble the heat insulation frame 2 later, thus facilitating maintenance.

[0027] As a technical optimization of this utility model, the installation mechanism 4 includes a connecting plate 401, which is fixedly connected to the top of the air duct 1. A guide rod 402 is fixedly connected to one side of the connecting plate 401. A guide sleeve 403 is slidably connected to the outside of the guide rod 402. A vertical rod 404 is fixedly connected to the top of the guide sleeve 403. An installation plate 405 is fixedly connected to the top of the vertical rod 404.

[0028] The mounting mechanism 4 also includes an adjusting rod 406, which is fixedly connected to one side of the connecting plate 401. An adjusting frame 407 is slidably connected to the outside of the adjusting rod 406. An adjusting bolt 408 is provided in the inner cavity of the adjusting frame 407. A fixing rod 409 is fixedly connected to both sides of the adjusting frame 407. One end of the fixing rod 409 is fixedly connected to the outside of the guide sleeve 403.

[0029] In this embodiment: When installing the air duct 1, the air duct 1 can be moved to the fixed beam at the top of the room, and then the mounting plate 405 can be fixed to the fixed beam by bolts through it (if there is a need for seismic resistance, thread fasteners or spring washers or other seismic measures can be used). If the position of the fixing hole inside the mounting plate 405 does not match the preset hole position of the fixed beam during installation, the user can unscrew the adjusting bolt 408 from the threaded groove at the top of the adjusting rod 406 to release the fixing of the adjusting frame 407. Then the user can adjust the position of the mounting plate 405. After the adjustment is completed, the adjusting bolt 408 can be returned to its original position and screwed into the corresponding threaded groove.

[0030] As a technical optimization of this utility model, the connecting mechanism 5 includes a sealing frame 501. The sealing frame 501 is fixedly connected to the outside of the air duct 1. A fireproof expansion sealing gasket 502 is provided on one side of the sealing frame 501. A docking block 503 is fixedly connected to one side of the fireproof expansion sealing gasket 502. A docking groove 504 is opened on one side of the sealing frame 501.

[0031] In this embodiment: the inner cavity of the sealing frame 501 is provided with multiple through holes for fixing with bolts. When connecting multiple air ducts 1, the air ducts 1 can be joined together and then the sealing frame 501 can be fixed by bolting to complete the connection and fixing of multiple air ducts 1. By setting the fireproof expansion sealing gasket 502, the fireproof effect at the joint of the air ducts 1 is improved.

[0032] As a technical optimization of this utility model, the heat insulation frame 2 includes a first shell 201, a first fireproof heat insulation layer 202 is provided on the inner side of the first shell 201, a second fireproof heat insulation layer 203 is provided on the inner side of the first fireproof heat insulation layer 202, and a second shell 204 is provided on the inner side of the second fireproof heat insulation layer 203.

[0033] In this embodiment: the first shell 201 and the second shell 204 are both made of galvanized steel plate with a thickness of 0.5mm. The first fireproof and heat-insulating layer 202 is a high-density rock wool board with a thickness of 25mm, which is bonded and fixed to the inside of the first shell 201 by high-temperature resistant fireproof adhesive. The second fireproof and heat-insulating layer 203 is a high-density glass wool board with a thickness of 25mm, which is bonded and fixed to the inside of the first fireproof and heat-insulating layer 202 by high-temperature resistant fireproof adhesive. By setting the first fireproof and heat-insulating layer 202 and the second fireproof and heat-insulating layer 203, multiple fire barriers are formed, which effectively block flame penetration and high temperature transmission.

[0034] The working principle of the fireproof and heat-insulating composite air duct provided by this utility model is as follows:

[0035] When installing duct 1, duct 1 can be moved to the fixed beam at the top of the room, and then the mounting plate 405 can be fixed to the fixed beam by bolting through it. When connecting multiple ducts 1, the ducts 1 can be butted together, and then the sealing frame 501 can be fixed by bolting. This completes the connection and fixing of multiple ducts 1. The heat insulation frame 2 forms multiple fire barriers, effectively blocking flame penetration and high temperature transmission. When disassembling the heat insulation frame 2, the user can unscrew the fixing bolt 302 from the fixing seat 303 to release the heat insulation. After the heat insulation frame 2 is fixed, the user can pull the heat insulation frame 2 out of the air duct 1 to complete the disassembly of the heat insulation frame 2. When installing a new heat insulation frame 2, simply insert the heat insulation frame 2 into the air duct 1, align the fixing sleeve 301 with the fixing seat 303, and screw the fixing bolt 302 back into the fixing seat 303. This makes it easy for the user to disassemble and install the heat insulation frame 2 later, thus facilitating maintenance. The device has a compact structure, integrating multiple layers of materials to form the heat insulation frame 2. Simply inserting the heat insulation frame 2 into the air duct 1 can achieve the effect of fireproof and heat insulation, and it is also relatively convenient to replace.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fireproof and heat-insulating composite air duct, characterized in that, The duct includes a heat insulation frame (2) in the inner cavity of the duct (1), a fixing mechanism (3) on the outer side of the duct (1), an installation mechanism (4) on the top of the duct (1), and a connecting mechanism (5) at both ends of the duct (1).

2. The fireproof and heat-insulating composite air duct according to claim 1, characterized in that, The fixing mechanism (3) includes a fixing sleeve (301), which is embedded and fixed on both sides of the air duct (1). The inner cavity of the fixing sleeve (301) is provided with a fixing bolt (302), and the outer side of the fixing bolt (302) is threadedly connected to a fixing seat (303). The fixing seat (303) is embedded and fixed on the inner wall of the heat insulation frame (2).

3. The fireproof and heat-insulating composite air duct according to claim 1, characterized in that, The installation mechanism (4) includes a connecting plate (401), which is fixedly connected to the top of the air duct (1). A guide rod (402) is fixedly connected to one side of the connecting plate (401), and a guide sleeve (403) is slidably connected to the outside of the guide rod (402). A vertical rod (404) is fixedly connected to the top of the guide sleeve (403), and an installation plate (405) is fixedly connected to the top of the vertical rod (404).

4. The fireproof and heat-insulating composite air duct according to claim 3, characterized in that, The installation mechanism (4) further includes an adjusting rod (406), which is fixedly connected to one side of the connecting plate (401). An adjusting frame (407) is slidably connected to the outside of the adjusting rod (406). An adjusting bolt (408) is provided in the inner cavity of the adjusting frame (407). A fixing rod (409) is fixedly connected to both sides of the adjusting frame (407). One end of the fixing rod (409) is fixedly connected to the outside of the guide sleeve (403).

5. The fireproof and heat-insulating composite air duct according to claim 1, characterized in that, The connecting mechanism (5) includes a sealing frame (501), the outer side of the air duct (1) is fixedly connected to the sealing frame (501), a fireproof expansion sealing gasket (502) is provided on one side of the sealing frame (501), a docking block (503) is fixedly connected to one side of the fireproof expansion sealing gasket (502), and a docking groove (504) is opened on one side of the sealing frame (501).

6. The fireproof and heat-insulating composite air duct according to claim 1, characterized in that, The heat insulation frame (2) includes a first shell (201), a first fireproof heat insulation layer (202) is provided on the inner side of the first shell (201), a second fireproof heat insulation layer (203) is provided on the inner side of the first fireproof heat insulation layer (202), and a second shell (204) is provided on the inner side of the second fireproof heat insulation layer (203).

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