Fabricated fire-resistant heat-insulating composite ventilating duct
Through the combination of prefabricated design and multi-layer insulation materials, the problems of cumbersome installation and insufficient insulation performance of traditional ventilation ducts are solved, and the effects of fast installation, stable connection and efficient insulation are achieved.
Patent Information
- Application Number
- CN202421941515.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-12
AI Technical Summary
Traditional ventilation ducts are cumbersome to install, difficult to quickly install and dismantle, and lack thermal insulation and fire resistance, making them unable to effectively prevent the spread of fire.
It adopts an assembled design, through the combination of the pipe body, assembly plate and locking parts, using components such as knobs and plug rods to achieve rapid splicing and fixation, combined with multi-layer insulation materials of rock wool, polyurethane foam and aluminum silicate fiber to improve thermal insulation performance and fire resistance.
It realizes the rapid installation and disassembly of pipes, improves installation efficiency, reduces heat loss, enhances fire resistance, and adapts to the ventilation needs of different building environments.
Smart Images

Figure CN223360275U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire protection pipes, in particular to an assembled fire-resistant and heat-insulating composite ventilation pipe. Background Art
[0002] Fire-resistant and thermally insulated composite ventilation ducts play a vital role in modern construction and industrial production. They not only ensure air circulation and improve indoor air quality, but also prevent the spread of fire and reduce energy loss. These ducts are often required to meet stringent safety standards, including high-temperature resistance, fire resistance, and excellent thermal insulation.
[0003] Traditional ventilation duct systems present numerous design and installation challenges, including limited material selection, cumbersome installation procedures, difficulty in rapid on-site installation and disassembly, and inability to adapt to complex or changing building space requirements. Furthermore, traditional duct systems often offer suboptimal insulation and fire resistance, failing to effectively reduce energy loss. Furthermore, in the event of a fire, their protection capabilities are limited, failing to effectively prevent the spread of fire. Utility Model Content
[0004] (1) Technical problems solved
[0005] The purpose of the utility model is to provide an assembled fire-resistant and heat-insulating composite ventilation duct to solve the problem of the complicated installation process of the traditional ventilation duct proposed in the above background technology.
[0006] (2) Technical solution
[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an assembled fire-resistant and heat-insulating composite ventilation duct, which comprises a duct body, a first assembly plate and a second assembly plate, the front end of the duct body being provided with the first assembly plate, the rear end of the duct body being provided with the second assembly plate, the duct body and the assembly plate being connected by a connecting piece, the first assembly plate and the second assembly plate being provided with first assembly holes in four directions, and the first assembly holes passing through the assembly plates, the locking piece connecting the first assembly plate and the second assembly plate, the locking piece comprising a knob, the front end of the knob being provided with a plug rod, the duct body providing the basic structure of the ventilation duct, forming a channel for air circulation, and serving as a support base for the internal insulation layer and the external protective layer, the first assembly plate and the second assembly plate serving as the two ends of the duct connection, providing an interface for connecting the ducts, cooperating with the locking piece to achieve rapid splicing and fixing of the ducts, the first assembly hole being located on the assembly plate, for installing and positioning the locking piece to ensure a tight connection between the ducts, the locking piece comprising components such as a knob and a plug rod, which are inserted into the first assembly hole and rotated to lock or release the duct connection, thereby achieving rapid assembly or disassembly.
[0008] Preferably, the pipeline body includes a shell, rock wool is arranged inside the shell, polyurethane foam is arranged inside the rock wool, and aluminum silicate fiber is arranged inside the polyurethane foam. The polyurethane foam is inside the rock wool layer to provide additional insulation and sealing, thereby enhancing the thermal insulation performance of the pipeline. The aluminum silicate fiber serves as the inner layer insulation material to provide fire-resistant insulation at high temperatures, thereby protecting the performance of the pipeline under extreme conditions.
[0009] Preferably, the outer ring of the insertion rod is provided with a movable spring, and the front end of the movable spring is provided with a spring seat. The movable spring and the spring seat are in the locking part, and the elastic force of the spring provides the mobility and reset ability of the insertion rod, which facilitates the installation and disassembly of the locking part.
[0010] Preferably, a limit plate is provided at the front end of the insertion rod, the length and width of the limit plate are larger than the first assembly hole, and the limit plate and the end block control the movement range and positioning of the insertion rod to ensure the correct position and stability of the locking part in the assembly hole.
[0011] Preferably, an end block is provided at the front end of the insertion rod, the length and width of the end block are smaller than the first assembly hole, and an anti-slip pad is provided at the bottom of the end block at the rear end of the end block to increase the friction when the insertion rod contacts the assembly plate and prevent sliding or falling off during connection.
[0012] Preferably, a mounting plate is provided at the front end of the first assembly plate, and the mounting plate includes a frame, a second assembly hole and a mounting hole. The mounting plate provides an interface for fixing the end of the pipe on a wall or other structure, thereby increasing the flexibility and adaptability of the pipe installation.
[0013] Preferably, a frame is provided on the front side of the first assembly plate, four second assembly holes are provided around the frame and the positions thereof correspond to the first assembly plate, and several mounting holes are provided at the center of the frame.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. This assembled fire-resistant and heat-insulating composite ventilation duct, through its innovative assembly plate and locking design, enables rapid splicing and secure fixation of the duct, greatly improving installation efficiency. This rapid assembly function allows the duct system to be quickly disassembled when rearrangement or maintenance is required, thereby reducing engineering time and labor costs.
[0016] 2. This assembled fire-resistant and heat-insulating composite ventilation duct uses a variety of high-efficiency thermal insulation materials such as rock wool, polyurethane foam and aluminum silicate fiber to form a composite insulation layer, which effectively reduces heat loss and improves the fire resistance of the duct. This design not only saves energy but also ensures the safe operation of the system in extreme environments.
[0017] 3. The assembled fire-resistant and heat-insulating composite ventilation duct can firmly install the duct end on the wall through the designed mounting plate, ensuring the stability of the duct system. The assembled design also makes the duct system highly adaptable, able to meet the ventilation needs of different buildings and environments, while facilitating future expansion or reconstruction. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the back structure of the pipeline of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the locking element of the utility model;
[0021] Figure 4 This is a schematic diagram of the installation of the locking component of the utility model;
[0022] Figure 5 This is a schematic diagram of the pipeline cross-section structure of the utility model.
[0023] In the figure: 1. Pipe body; 101. Shell; 102. Rock wool; 103. Polyurethane foam; 104. Aluminum silicate fiber; 2. First assembly plate; 3. Second assembly plate; 4. First assembly hole; 5. Locking part; 501. Knob; 502. Insert rod; 503. Movable spring; 504. Spring seat; 505. Limiting plate; 506. End block; 507. Anti-slip pad; 6. Connector; 7. Mounting plate; 701. Frame; 702. Second assembly hole; 703. Mounting hole. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] See also Figure 1-Figure 5The utility model provides a technical solution: an assembled fire-resistant and heat-insulating composite ventilation duct, which comprises a duct body 1, a first assembly plate 2 and a second assembly plate 3. The front end of the duct body 1 is provided with a first assembly plate 2, and the rear end of the duct body 1 is provided with a second assembly plate 3. The duct body 1 and the assembly plate are connected by a connecting piece 6. The first assembly plate 2 and the second assembly plate 3 are provided with first assembly holes 4 in four directions, and the first assembly holes 4 pass through the assembly plate, and a locking piece 5 connects the first assembly plate 2 and the second assembly plate 3. The locking piece 5 includes a knob 501, and a plug rod 502 is provided at the front end of the knob 501. In the design of the assembled fire-resistant and heat-insulating composite ventilation duct, the main focus is on key components such as the duct body 1, the first assembly plate 2, the second assembly plate 3, the locking piece 5, the connecting piece 6 and the mounting plate 7 to achieve the purpose of rapid assembly and efficient insulation. The assembled design allows the duct to be quickly assembled or disassembled through a simple splicing process, which is suitable for ventilation needs in various building environments.
[0026] The pipe body 1 includes a shell 101, the interior of the shell 101 is provided with rock wool 102, the interior of the rock wool 102 is provided with polyurethane foam 103, the interior of the polyurethane foam 103 is provided with aluminum silicate fiber 104, the outer ring of the insertion rod 502 is provided with a movable spring 503, the front end of the movable spring 503 is provided with a spring seat 504, the front end of the insertion rod 502 is provided with a limit plate 505, the length and width of the limit plate 505 are larger than the first assembly hole 4, during the splicing process, the second assembly hole 702 of the first assembly plate 2 is aligned with the corresponding first assembly hole 4 on the second assembly plate 3, and the insertion rod 502 is driven by the knob 501 of the locking member 5 to pass through the assembly hole. The end block 506 of the insertion rod 502 is designed to be smaller than the size of the assembly hole, while the size of the limit plate 505 is larger than the assembly hole, ensuring that after the insertion rod passes through the assembly hole, the knob is rotated to make the limit plate perpendicular to the plate surface, and the assembly plate is fixed by the tension of the spring to achieve a fast and stable pipe connection.
[0027] An end block 506 is provided at the front end of the insertion rod 502, and the length and width of the end block 506 are smaller than the first assembly hole 4. A non-slip pad 507 is provided at the rear end of the end block 506. A mounting plate 7 is provided at the front end of the first assembly plate 2. The mounting plate 7 includes a frame 701, a second assembly hole 702 and a mounting hole 703. A frame 701 is provided on the front side of the first assembly plate 2. Four second assembly holes 702 are provided around the frame 701, and their positions correspond to the first assembly plate 2. Several mounting holes 703 are provided at the center of the frame 701. By aligning the second assembly holes 702 of the frame 701 with the pipeline assembly plate and the central mounting hole 703, a stable installation of the pipeline system is achieved. This design not only optimizes the installation process of the pipeline, but also improves the installation efficiency.
[0028] Working principle: In the design of the assembled fire-resistant and heat-insulating composite ventilation duct, the purpose of rapid assembly and efficient heat insulation is mainly achieved by relying on key components such as the duct body 1, the first assembly plate 2, the second assembly plate 3, the locking member 5, the connecting member 6 and the mounting plate 7. The assembled design allows the duct to be quickly assembled or disassembled through a simple splicing process, which is suitable for ventilation needs in various building environments. During the splicing process, the second assembly hole 702 of the first assembly plate 2 is aligned with the corresponding first assembly hole 4 on the second assembly plate 3. The knob 501 of the locking member 5 is driven to make the insertion rod 502 pass through the assembly hole. The end block 506 of the insertion rod 502 is designed to be smaller than the assembly hole size, while the size of the limit plate 505 is larger than the assembly hole. Ensure that after the rod passes through the assembly hole, rotate the knob to make the limit plate perpendicular to the plate surface, and use the tension of the spring to fix the assembly plate to achieve a quick and stable pipe connection. In addition, the mounting plate 7 provides a solution for fixing the end of the pipe to the wall. The second assembly hole 702 of the frame 701 is aligned with the pipe assembly plate and the central mounting hole 703 to achieve stable installation of the pipe system. This design not only optimizes the installation process of the pipe and improves the installation efficiency, but also effectively improves the thermal insulation performance and fire safety of the pipe through the composite application of multi-layer insulation materials such as rock wool 102, polyurethane foam 103 and aluminum silicate fiber 104, and is suitable for building ventilation systems that require high standards of insulation and fire protection.
[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.
Claims
1. An assembled fire-resistant and heat-insulating composite ventilation duct, comprising a duct body (1), a first assembly plate (2) and a second assembly plate (3), characterized in that: The front end of the pipe body (1) is provided with a first assembly plate (2), and the rear end of the pipe body (1) is provided with a second assembly plate (3). The pipe body (1) and the assembly plate are connected via a connecting piece (6). First assembly holes (4) are provided in four directions on the first assembly plate (2) and the second assembly plate (3), and the first assembly holes (4) pass through the assembly plates. A locking piece (5) connects the first assembly plate (2) and the second assembly plate (3). The locking piece (5) includes a knob (501), and a plug rod (502) is provided at the front end of the knob (501).
2. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: The pipe body (1) comprises a shell (101), rock wool (102) is arranged inside the shell (101), polyurethane foam (103) is arranged inside the rock wool (102), and aluminum silicate fiber (104) is arranged inside the polyurethane foam (103).
3. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: The outer ring of the inserting rod (502) is provided with a movable spring (503), and the front end of the movable spring (503) is provided with a spring seat (504).
4. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: A limiting plate (505) is provided at the front end of the insertion rod (502), and the length and width of the limiting plate (505) are greater than the first assembly hole (4).
5. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: The front end of the insertion rod (502) is provided with an end block (506), the length and width of the end block (506) are smaller than the first assembly hole (4), and the rear end of the end block (506) is provided with an anti-slip pad (507).
6. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: A mounting plate (7) is provided at the front end of the first assembly plate (2), and the mounting plate (7) comprises a frame (701), a second assembly hole (702) and a mounting hole (703).
7. The assembled fire-resistant and heat-insulating composite ventilation duct according to claim 1, characterized in that: A frame (701) is provided on the front side of the first assembly plate (2), four second assembly holes (702) are provided around the frame (701), and the positions thereof correspond to those of the first assembly plate (2), and a plurality of mounting holes (703) are provided at the center of the frame (701).