Fabricated smoke prevention and exhaust air pipe fire plate coating device
By using prefabricated design for the bread-covering and diamond-shaped covering components, the problems of cumbersome operation and inconvenient maintenance of existing smoke exhaust duct fire plate covering devices are solved, enabling rapid covering and convenient disassembly and replacement, thus improving the covering effect and maintenance efficiency of fireproof materials.
Patent Information
- Application Number
- CN202423309459.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing smoke exhaust duct fire plate covering device has problems such as cumbersome operation, difficulty in observing welding, easy occurrence of false welding, and large amount of waste generated during maintenance.
The prefabricated design utilizes bread-covering and diamond-shaped covering components to quickly cover the fireproof material around the smoke exhaust duct. The diamond-shaped covering components ensure effective coverage of the corners, and the fastening bolts and plug-in structure enable easy disassembly and replacement.
It enables rapid application and complete disassembly and replacement of fireproof materials, improving the stability of the application effect and the convenience of maintenance, and avoiding the problems of difficult observation of welding and waste generation.
Smart Images

Figure CN223793829U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire plate coating technology, specifically relating to an assembled smoke exhaust duct fire plate coating device. Background Technology
[0002] Prefabricated fire-resistant duct covering devices (also known as fire-resistant duct covering devices) are used in smoke exhaust duct systems to enhance their fire resistance. They primarily improve the fire resistance of the duct in fire conditions by covering the outside of the duct with a layer of fire-resistant and heat-insulating material (such as fire-resistant covering panels, mineral fiber boards, etc.), ensuring the smoke exhaust system functions normally during a fire and guaranteeing personnel safety and unobstructed evacuation routes.
[0003] Problems with existing technology:
[0004] Existing smoke exhaust duct fireproof board covering devices typically involve covering the installed smoke exhaust duct with a layer of filling cotton and silicate fireproof board using light steel keel and some limiting nails. The covering process is lengthy, and the welding points of the limiting nails are located on the surface of the smoke exhaust duct inside the filling cotton. The welds are not visible and are prone to false welds. If no fire occurs, the device needs to be maintained and replaced, making operation troublesome and generating a lot of waste. Utility Model Content
[0005] The purpose of this utility model is to provide a prefabricated fireproof and exhaust duct fire plate covering device, which can quickly cover the fireproof and exhaust duct with fireproof material through the design of the covering component. At the same time, the corner covering component can also cover the corners, making the covering effect better. When it is stored for a long time and needs to be recycled and maintained, it can be disassembled and replaced as a whole, which is very convenient.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A prefabricated smoke exhaust duct fire plate covering device includes: a smoke exhaust duct one, a smoke exhaust duct two connected to one side of the smoke exhaust duct one via a flange, a covering component provided on the outside of the smoke exhaust duct one, and a corner covering component provided at each corner of the covering component corresponding to each corner of the smoke exhaust duct one.
[0008] The bread covering assembly includes multiple bread covering frames, which are connected by hinges. The bread covering frames are rotatably connected by the hinges. A transverse connecting beam is fixedly connected to two bread covering frames that are close to each other. Fireproof material is inserted into the interior of each bread covering frame.
[0009] The diamond-shaped covering assembly includes a diamond-shaped covering frame, one side of which is fixedly connected to a snap-fit buckle, and the lower end of which is fixedly connected to a T-shaped slide rail. Fireproof material II is inserted and installed inside the diamond-shaped covering frame.
[0010] The bread rack has a T-shaped groove at the position corresponding to the T-shaped slide rail, and the T-shaped slide rail is slidably inserted into the T-shaped groove.
[0011] The bread-covering frame has a disassembly slot at the position corresponding to the plug-in buckle. A fastening bolt is provided inside the disassembly slot. The fastening bolt is vertically threaded into the disassembly slot. The plug-in buckle is plugged into the disassembly slot. The fastening bolt is fastened to the plug-in buckle.
[0012] An isolation pad is fixedly connected to the side of the bread rack near the smoke exhaust duct, and the isolation pad is in contact with the smoke exhaust duct.
[0013] The technical effects achieved by this utility model are as follows:
[0014] This invention, through the design of the covering component, can quickly cover the fireproof material around the smoke exhaust duct, and at the same time, through the setting of the diamond-shaped covering component, the edges and corners can also be covered, so as to make the covering effect better.
[0015] This invention, through the setting of the diamond-shaped corner covering component, can also cover the edges and corners, resulting in a better covering effect. When it needs to be recycled and maintained after a long period of storage, it can be disassembled and replaced as a whole, which is very convenient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the disassembly structure of the rhombus-shaped covering component in this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the covering component in this utility model;
[0019] Figure 4 This is a disassembly diagram of fireproof material one in this utility model;
[0020] Figure 5 This is a partial enlarged schematic diagram of the covering frame in this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the rhombus-shaped covering component in this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Smoke exhaust duct one; 2. Smoke exhaust duct two; 3. Covered assembly; 4. Angular covering assembly; 301. Covered frame; 302. Isolation gasket; 303. Horizontal connecting beam; 304. Fireproof material one; 305. Hinge; 306. T-slot; 307. Fastening bolt; 308. Disassembly insertion slot; 401. Angular covering frame; 402. Insertion buckle; 403. T-slide rail; 404. Fireproof material two. Detailed Implementation
[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0025] like Figures 1-4 As shown, a prefabricated smoke exhaust duct fire plate covering device includes: a smoke exhaust duct 1, a second smoke exhaust duct 2 connected to one side of the smoke exhaust duct 1 via a flange, a covering assembly 3 provided on the outside of the smoke exhaust duct 1, and a corner covering assembly 4 provided at each corner of the covering assembly 3 corresponding to the corner of the smoke exhaust duct 1; the covering assembly 3 includes a covering frame 301, and there are multiple covering frames 301, with hinges 305 provided between the multiple covering frames 301, and the covering frames 301 are rotatably connected by the hinges 305, wherein a transverse connecting beam 303 is fixedly connected at the position where two covering frames 301 are close to each other, and fireproof material 304 is inserted and installed inside the covering frame 301.
[0026] Among them, the bread covering component 3 covers the outside of the smoke exhaust duct 1. After the smoke exhaust duct 1 and the smoke exhaust duct 2 are installed, the staff places the bread covering component 3 on the top of the smoke exhaust duct 1, unfolds the bread covering component 3, and covers the corresponding bread covering frame 301 on the four sides of the smoke exhaust duct 1. The diamond corner covering component 4 is installed between two adjacent bread covering frames 301 to cover the diamond corners of the smoke exhaust duct 1.
[0027] See attached document Figure 6 The diamond-shaped covering component 4 includes a diamond-shaped covering frame 401. A snap fastener 402 is fixedly connected to one side of the diamond-shaped covering frame 401. A T-shaped slide rail 403 is fixedly connected to the lower end of the diamond-shaped covering frame 401. Fireproof material 404 is inserted and installed inside the diamond-shaped covering frame 401.
[0028] According to the above structure, the fireproof material 404 is fan-shaped and is used to cover the corner of the smoke exhaust duct 1. The plug buckle 402 and the T-shaped slide rail 403 are used to fix the corner covering frame 401 and can also fix the two adjacent covering frames 301 in the opposite direction, so that the entire device structure can be more solid.
[0029] See attached document Figures 3-6 The bread cover frame 301 has a T-shaped groove 306 at the position corresponding to the T-shaped slide rail 403, and the T-shaped slide rail 403 and the T-shaped groove 306 are slidably inserted into each other; the bread cover frame 301 has a disassembly insertion groove 308 at the position corresponding to the insertion buckle 402, and the disassembly insertion groove 308 is provided with a fastening bolt 307 inside. The fastening bolt 307 is vertically threaded with the disassembly insertion groove 308, and the insertion buckle 402 is inserted into the disassembly insertion groove 308 and the fastening bolt 307 is fastened to the insertion buckle 402; an isolation gasket 302 is fixedly connected to the side of the bread cover frame 301 near the smoke exhaust duct 1, and the isolation gasket 302 is in contact with the smoke exhaust duct 1.
[0030] According to the above structure, when the covering component 3 covers the outside of the smoke exhaust duct 1, the transverse connecting beam 303 is used to maintain the array arrangement of multiple covering frames 301. Among them, two covering frames 301 without hinges 305 need to be connected by the diamond-shaped covering component 4. At this time, the T-shaped slide rail 403 is slid laterally into the inside of the T-shaped groove 306. As the two continue to slide, the plug buckle 402 also reaches the position of the disassembly plug groove 308 and plugs in with it. At this time, the groove opened by the plug buckle 402 enters the inside of the disassembly plug groove 308. Then, the fastening bolt 307 is rotated to move it downward and engage with the groove. At this time, the diamond-shaped covering component 4 is limited, and two adjacent covering frames 301 are connected under the action of the diamond-shaped covering component 4. The other four corners are also limited in this way to make the device more secure. When maintenance and replacement are required after long-term use, the diamond-shaped covering component 4 is removed first, and then the covering component 3 is removed for recycling and replacement. No waste will be generated during the disassembly process.
[0031] The working principle of this utility model is as follows: The covering component 3 covers the outside of the smoke exhaust duct 1. After the smoke exhaust duct 1 and the smoke exhaust duct 2 are installed, the worker places the covering component 3 on top of the smoke exhaust duct 1, unfolds the covering component 3, and covers the corresponding covering frame 301 on the four sides of the smoke exhaust duct 1. The diamond-shaped covering component 4 is installed between two adjacent covering frames 301 to cover the diamond-shaped corners of the smoke exhaust duct 1. The two sides are then covered with the covering component 301. When the covering frames 301 are connected to each other, the T-shaped slide rail 403 is slid laterally into the T-shaped groove 306. As the two continue to slide, the plug buckle 402 also reaches the position of the disassembly plug groove 308 and is plugged in. At this time, the groove opened by the plug buckle 402 enters the disassembly plug groove 308. Then, the fastening bolt 307 is rotated to move it downward and engage with the groove. At this time, the diamond-shaped covering component 4 is limited, and the two adjacent covering frames 301 are connected under the action of the diamond-shaped covering component 4.
[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A prefabricated smoke control air duct fire plate covering device, characterized in that, Include: The first side of the smoke exhaust duct (1) is connected with the second smoke exhaust duct (2) through the flange, the outer side of the smoke exhaust duct (1) is provided with the surface covering assembly (3), the surface covering assembly (3) is provided with the rhombus covering assembly (4) at each corner of the smoke exhaust duct (1). The surface covering assembly (3) includes a plurality of surface covering frames (301), a hinge (305) is arranged between the surface covering frames (301), two surface covering frames (301) are fixedly connected with a transverse connecting beam (303) at a position close to each other, and a fireproof material (304) is inserted and mounted in the surface covering frame (301).
2. The prefabricated smoke control air duct fire plate covering device according to claim 1, characterized in that: The rhombus covering assembly (4) includes a rhombus covering frame (401), a plug-in buckle (402) is fixedly connected to one side of the rhombus covering frame (401), a T-shaped slide rail (403) is fixedly connected to the lower end of the rhombus covering frame (401), and a fireproof material (404) is inserted and mounted in the rhombus covering frame (401).
3. The prefabricated smoke control air duct fire panel cladding device according to claim 1, characterized in that: The surface covering frame (301) is provided with a T-shaped groove (306) corresponding to the T-shaped slide rail (403), and the T-shaped slide rail (403) and the T-shaped groove (306) are slidingly inserted and mounted.
4. The prefabricated smoke control air duct fire panel cladding device according to claim 1, characterized in that: The surface covering frame (301) is provided with a dismounting plug-in groove (308) corresponding to the plug-in buckle (402), the dismounting plug-in groove (308) is provided with a buckling bolt (307) inside, the buckling bolt (307) and the dismounting plug-in groove (308) are vertically threaded, the plug-in buckle (402) is inserted and connected with the dismounting plug-in groove (308), and the buckling bolt (307) is buckled with the plug-in buckle (402).
5. The prefabricated smoke control air duct fire panel cladding device according to claim 1, characterized in that: The surface covering frame (301) is fixedly connected with an isolation gasket (302) close to the smoke exhaust duct (1), and the isolation gasket (302) is attached to the smoke exhaust duct (1).