Integrated fireproof air pipe

Abstract

The utility model discloses an integrated fireproof air duct, which relates to the technical field of ventilation system components and comprises an inner-layer air duct and two L-shaped outer-layer shells which are symmetrically arranged, and the outer-layer shells are rotatably connected with a mounting piece at the top of the inner-layer air duct through a rotating shaft I to form an openable structure. A fireproof layer is arranged between the outer-layer shell and the inner-layer air pipe, the bottom stacking position of the outer-layer shell and the inner-layer air pipe is flattened through a flattening assembly, the flattening assembly comprises a sliding block, an elastic pressing plate and a spring, and it is ensured that the fireproof layer is tightly attached. Fixing assemblies are arranged at the left end and the right end of the outer-layer shell, and a screw head is rotated to drive a screw rod and a disc to press the fireproof layer. A switch assembly is arranged at the bottom of the outer-layer shell, and convenient opening and closing are achieved through buckling of a square rod and a protruding block. And the adapting groove at the upper end of the outer shell is convenient for splicing a plurality of air pipes. By means of the detachable structural design, the problems that a traditional fireproof layer is difficult to install and detach and prone to loosening are solved, and the detachable fireproof layer has the advantages of being efficient in installation, convenient to maintain and high in fireproof stability.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation system components, specifically an integrated fireproof air duct. Background Technology

[0002] In various building and industrial ventilation systems, ducts are key components used to ensure air circulation and achieve specific environmental control. Their performance directly affects the operation of the entire ventilation system and the safety of related locations.

[0003] However, traditional fireproofing of ductwork is typically achieved through wrapping and bonding or welding. While welding can provide a tighter bond between the fireproofing and the duct to some extent, it requires specialized equipment and technicians, increasing construction costs and difficulty. Furthermore, disassembling the welded areas is extremely difficult when maintenance or replacement is needed, often requiring damage to the duct structure and significantly increasing repair costs. Bonding, on the other hand, is prone to loosening and detachment, failing to effectively guarantee the stability of the fireproofing and thus greatly compromising the fire resistance of the duct.

[0004] To address the numerous shortcomings of traditional air ducts in terms of fireproof layer installation and dismantling, an integrated fireproof air duct is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an integrated fireproof air duct with advantages such as convenient installation and disassembly and good stability of the fireproof layer, solving the problems of difficult installation and disassembly of the fireproof layer and unstable fireproof performance of traditional air ducts.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned goals of convenient installation and disassembly and good stability of the fireproof layer, this utility model provides the following technical solution:

[0009] An integrated fireproof air duct includes an inner air duct and two outer shells. An installation component is provided on one side of the top of the inner air duct, and a rotating shaft that is rotatably connected to the installation component is provided at the upper end of each of the two outer shells.

[0010] The two outer shells are symmetrically arranged and are both L-shaped. The two outer shells together form a closed structure and are fitted onto the outer surface of the inner duct. A fireproof layer is provided between the outer shell and the inner duct, and the fireproof layer is stacked at the bottom of the inner duct.

[0011] Each of the outer shells has two sets of sliding holes at its bottom, and a flattening component slides on each pair of sliding holes on the front and rear sides.

[0012] The flattening assembly acts on the stacking of the fireproof layer and includes a slider, a pressure plate, and a spring. The slider is slidably engaged with the outer shell through a sliding hole. One side of the pressure plate is rotatably connected to the side of the slider near the fireproof layer. The spring is hinged to the other side of the rotating part of the pressure plate and the slider.

[0013] A preferred embodiment of this invention is that an anti-slip strip is provided on the side of the slider away from the fireproof layer, and the slider on the side of the anti-slip strip protrudes from the end face of the outer shell.

[0014] The preferred technical solution of this utility model is that at least two fixing components are provided at both the left and right ends of the outer shell. The fixing components include a screw head located on the outside of the outer shell, a screw rod threadedly connected to the outer shell, and a disc located between the outer shell and the fireproof layer. The two ends of the screw rod are respectively fixed to the screw head and the disc.

[0015] A preferred embodiment of this invention is that magnets that can attract each other are installed on the upper left and right sides of the outer shell.

[0016] The preferred technical solution of this utility model is that a switch assembly is provided at the bottom of each outer shell. Each set of switch assemblies includes a square rod rotatably connected to the bottom of the outer shell through a second rotating shaft, and a protrusion provided on the square rod. The protrusion can be engaged with the square rod of another switch assembly by rotation.

[0017] The preferred technical solution of this utility model is that one end of the pressure plate hinge spring abuts against the fireproof layer, which is used to flatten the stacked fireproof layer.

[0018] A preferred embodiment of this invention is that the upper end of the outer shell, away from the mounting component, is provided with an adapter groove that can cooperate with the mounting component of another fireproof air duct.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides an integrated fireproof air duct, which has the following beneficial effects:

[0021] This integrated fireproof duct features a rotatable outer shell that engages with the inner duct, and a flattening component to level the overlapping areas of the fireproof layers, making installation of the fireproof layer more convenient and stable. Simultaneously, the fixing components at the left and right ends of the outer shell further reinforce the fireproof layer, avoiding the difficulties of installation and disassembly and the tendency for the fireproof layer to loosen and detach, thus effectively improving the fire resistance and reliability of the duct.

[0022] This integrated fireproof duct features a switch assembly at the bottom of the outer shell, allowing for easy opening and closing of the outer shell via a square rod and protrusion fastening mechanism. This greatly facilitates the maintenance and replacement of the fireproof layer. Furthermore, the magnets and adapter slots on the upper left and right sides of the outer shell facilitate the splicing and installation of multiple ducts, optimizing the construction process, reducing costs, and improving the overall stability of the ventilation system. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0024] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;

[0026] Figure 4 This is a schematic diagram of the bottom structure of this utility model;

[0027] Figure 5 This is a side view of the present invention.

[0028] Figure 6 This is a schematic diagram of the outer shell of this utility model when it is unfolded.

[0029] In the diagram: 1. Inner duct; 2. Outer shell; 3. Fireproof layer; 4. Flattening assembly; 5. Fixing assembly; 6. Magnet; 7. Switch assembly; 11. Mounting component; 21. Shaft one; 22. Sliding hole; 23. Adaptor groove; 41. Slider; 42. Pressure plate; 43. Spring; 44. Anti-slip strip; 51. Screw head; 52. Screw; 53. Disc; 71. Square rod; 72. Shaft two; 73. Protrusion. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-2 An integrated fireproof air duct includes an inner duct 1 and two outer shells 2. An installation component 11 is provided on one side of the top of the inner duct 1, and a rotating shaft 21 that is rotatably connected to the installation component 11 is provided on the upper end of each of the two outer shells 2.

[0034] Two outer shells 2 are symmetrically arranged and each is L-shaped. The two outer shells 2 together form a closed structure, which is fitted onto the outer surface of the inner duct 1. A fireproof layer 3 is provided between the outer shell 2 and the inner duct 1, and the fireproof layer 3 is stacked at the bottom of the inner duct 1.

[0035] Each outer shell 2 has two sets of sliding holes 22 at its bottom, and a flattening component 4 slides on each pair of sliding holes 22 on the front and rear sides.

[0036] The flattening component 4 acts at the stacking point of the fireproof layer 3 and includes a slider 41, a pressure plate 42, and a spring 43. The slider 41 is slidably engaged with the outer shell 2 through the sliding hole 22. One side of the pressure plate 42 is rotatably connected to the side of the slider 41 near the fireproof layer 3. The spring 43 is hinged to the other side of the rotation point between the pressure plate 42 and the slider 41.

[0037] In this embodiment, an anti-slip strip 44 is provided on the side of the slider 41 away from the fireproof layer 3, and the slider 41 on the side of the anti-slip strip 44 protrudes from the end face of the outer shell 2.

[0038] It should be noted that this design increases the friction between the finger and the slider 41 when manually pushing the slider 41 to flatten the fireproof layer 3, making it less prone to slipping. This allows the operator to more accurately control the sliding position of the slider 41, ensuring that the stacked fireproof layer 3 can be evenly and effectively flattened.

[0039] Please see Figure 3 In this embodiment, at least two fixing components 5 are provided at both the left and right ends of the outer shell 2. The fixing component 5 includes a screw head 51 located on the outside of the outer shell 2, a screw rod 52 threadedly connected to the outer shell 2, and a disc 53 located between the outer shell 2 and the fireproof layer 3. The two ends of the screw rod 52 are fixed to the screw head 51 and the disc 53, respectively.

[0040] It should be noted that when the screw head 51 is rotated, the screw 52 will move inward or outward along the thread, thereby causing the disc 53 to press towards or away from the fireproof layer 3. When it is necessary to fix the fireproof layer 3, rotating the screw head 51 makes the disc 53 press tightly against the fireproof layer 3, enhancing the fit between the fireproof layer 3 and the outer shell 2, improving the stability of the fireproof layer 3, and preventing it from shifting during use.

[0041] In this embodiment, magnets 6 that can attract each other are installed on the upper left and right sides of the outer shell 2.

[0042] It should be noted that you should refer to [link / reference]. Figure 6 When the two outer shells 2 are opened, the two magnets 6 approach each other and generate a force that attracts each other, causing the two outer shells 2 to unfold and remain fixed, making it convenient for staff to disassemble and replace the fireproof layer 3.

[0043] Please see Figure 4 In this embodiment, a switch assembly 7 is provided at the bottom of each outer shell 2. Each switch assembly 7 includes a square rod 71 rotatably connected to the bottom of the outer shell 2 via a pivot 72, and a protrusion 73 provided on the square rod 71. The protrusion 73 can be engaged with the square rod 71 of another switch assembly 7 by rotation.

[0044] It should be noted that when it is necessary to open the outer shell 2 to maintain or replace the fireproof layer 3, simply rotate the square rod 71 to disengage the protrusion 73 from the other square rod 71, and the outer shell 2 can be easily opened. During installation, after closing the two outer shells 2, rotate the square rod 71 to make the protrusion 73 interlock, so as to facilitate the opening and closing of the outer shell 2 and make it convenient to maintain and replace the fireproof layer 3.

[0045] In this embodiment, one end of the hinged spring 43 of the pressure plate 42 abuts against the fireproof layer 3 to flatten the stacked area of ​​the fireproof layer 3.

[0046] It should be noted that the design of spring 43 gives pressure plate 42 a certain degree of elasticity. When pressing fireproof layer 3, pressure plate 42 can adaptively adjust the pressure according to the thickness and unevenness of fireproof layer 3. This will not damage fireproof layer 3 due to excessive pressure, and will ensure that the stacked fireproof layer 3 is fully flattened, thereby improving the installation quality and stability of fireproof layer 3.

[0047] Please see Figure 5 In this embodiment, the upper end of the outer shell 2, away from the mounting component 11, is also provided with an adapter groove 23 that can cooperate with the mounting component 11 of another fireproof air duct.

[0048] It should be noted that when multiple ducts are spliced ​​and installed, the mounting part 11 of one duct can be embedded in the adapter groove 23 of another duct, making the connection between adjacent ducts tighter and more accurate, optimizing the construction process, improving the overall stability of the ventilation system, and also facilitating subsequent maintenance and disassembly.

[0049] In summary, this integrated fireproof duct, through the use of a rotatable outer shell 2 that mates with the inner duct 1, and the flattening component 4 to smooth the stacked areas of the fireproof layer 3, makes the installation of the fireproof layer 3 more convenient and stable. Simultaneously, the fixing components 5 at the left and right ends of the outer shell 2 further reinforce the fireproof layer 3, avoiding the difficulties of installation and disassembly and the problem of the fireproof layer 3 easily loosening and falling off, thus effectively improving the fire resistance and reliability of the duct.

[0050] This integrated fireproof duct features a switch assembly 7 at the bottom of the outer shell 2, which allows for easy opening and closing of the outer shell 2 via a snap-fit ​​connection between a square rod 71 and a protrusion 73. This greatly facilitates the maintenance and replacement of the fireproof layer 3. Furthermore, the magnets 6 on the upper left and right sides of the outer shell 2, along with the adapter grooves 23, facilitate the splicing and installation of multiple ducts, optimizing the construction process, reducing costs, and improving the overall stability of the ventilation system.

[0051] Supplement to working principle

[0052] Installation process:

[0053] First, the two outer shells 2 are rotatably connected to the mounting piece 11 at the top of the inner duct 1 via a pivot 21. Under the mutual attraction of the magnets 6, the two outer shells 2 are in an open state. Then, the fireproof layer 3 is laid on the outer surface of the inner duct 1, with a stacked portion at the bottom. Next, the outer shells 2 are closed, and the square rod 71 is rotated so that the protrusion 73 engages with another square rod 71. The flattening component 4 at the bottom of the outer shell 2 is slid, and the slider 41 slides in the sliding hole 22, moving the pressure plate 42. The pressure plate 42, under the action of the spring 43, abuts against the fireproof layer 3, flattening the stacked portion of the fireproof layer 3 and ensuring that the fireproof layer 3 is flat and tightly fitted to the inner duct 1. Afterward, the screw heads 51 of the fixing components 5 at the left and right ends of the outer shell 2 are rotated, causing the screw 52 to move the disc 53 towards the fireproof layer 3, further reinforcing the fireproof layer 3 and preventing it from loosening and falling off.

[0054] Assembly and installation:

[0055] When multiple fireproof air ducts need to be spliced ​​and installed, the mounting part 11 on the upper end of the outer shell 2 of one fireproof air duct is matched with the adapter groove 23 on the upper end of the outer shell 2 of another fireproof air duct to achieve splicing and installation between multiple air ducts. This has the function of quick positioning and optimizes the construction process.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated fireproof air duct, comprising an inner duct and two outer shells, characterized in that: An installation component is provided on one side of the top of the inner duct, and a rotating shaft is provided on the upper end of each of the two outer shells, which is rotatably connected to the installation component. The two outer shells are symmetrically arranged and are both L-shaped. The two outer shells together form a closed structure and are fitted onto the outer surface of the inner duct. A fireproof layer is provided between the outer shell and the inner duct, and the fireproof layer is stacked at the bottom of the inner duct. Each of the outer shells has two sets of sliding holes at its bottom, and a flattening component slides on each pair of sliding holes on the front and rear sides. The flattening assembly acts on the stacking of the fireproof layer and includes a slider, a pressure plate, and a spring. The slider is slidably engaged with the outer shell through a sliding hole. One side of the pressure plate is rotatably connected to the side of the slider near the fireproof layer. The spring is hinged to the other side of the rotating part of the pressure plate and the slider.

2. The integrated fireproof air duct according to claim 1, characterized in that: An anti-slip strip is provided on the side of the slider away from the fireproof layer, and the slider on the side of the anti-slip strip protrudes from the end face of the outer shell.

3. The integrated fireproof air duct according to claim 1, characterized in that: At least two fixing components are provided at both the left and right ends of the outer shell. The fixing components include a screw head located on the outside of the outer shell, a screw rod threadedly connected to the outer shell, and a disc located between the outer shell and the fireproof layer. The two ends of the screw rod are fixed to the screw head and the disc, respectively.

4. The integrated fireproof air duct according to claim 1, characterized in that: Magnets that attract each other are installed on the upper left and right sides of the outer shell.

5. The integrated fireproof air duct according to claim 1, characterized in that: Each of the outer housings has a switch assembly at its bottom. Each switch assembly includes a square rod rotatably connected to the bottom of the outer housing via a pivot shaft, and a protrusion on the square rod. The protrusion can be engaged with the square rod of another switch assembly by rotation.

6. The integrated fireproof air duct according to claim 1, characterized in that: One end of the pressure plate hinge spring abuts against the fireproof layer and is used to flatten the stacked fireproof layers.

7. The integrated fireproof air duct according to claim 1, characterized in that: The outer shell also has an adapter groove on the side away from the mounting component at the upper end, which can be matched with the mounting component of another fireproof air duct.

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