A ventilation duct installation structure for a fire ventilation system
By designing structures such as air inlet connecting pipes, reinforcing plates, filter pipes, and welding seats in the fire ventilation system, the problems of inconvenient installation and insufficient filtration of ventilation pipes have been solved, achieving convenient installation and effective filtration, and improving the ease of use and structural strength of ventilation pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINSIDE SMART CONSTR CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-30
AI Technical Summary
The ventilation ducts of existing fire ventilation systems are inconvenient to connect during installation and lack effective filtration functions, which makes it easy for impurities in the smoke to remain.
A ventilation duct installation structure was designed, comprising an air inlet connecting pipe, a reinforcing plate, a filter pipe, a filter device, and a welding seat. The structure enables quick installation and secure connection through connecting screws, fixing bolts, and welding seats, and filters impurities in the flue gas through the filter device.
It enables convenient installation and effective filtration of ventilation ducts in fire ventilation systems, improves structural strength, effectively removes debris, and enhances ease of use and filtration effect.
Smart Images

Figure CN224434608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation duct structure technology, and in particular to a ventilation duct installation structure for a fire ventilation system. Background Technology
[0002] Fire ventilation systems are ventilation systems specifically designed for fire protection purposes. They mainly include air supply systems, exhaust systems, and smoke control systems. These systems play a crucial role in the event of a fire, ensuring the safe evacuation of personnel and the smooth progress of firefighting operations. Fire ventilation systems typically use ventilation ducts, which enable the fire ventilation system to function effectively.
[0003] A search revealed that authorization announcement number CN220507110 discloses a ventilation duct installation structure for a fire ventilation system. The structure includes a first ventilation duct with a connecting flange riveted to its right side. A second ventilation duct is fixedly connected to the right side of the first ventilation duct via the connecting flange. An elastic sealing sleeve is inserted into the inner wall of the first ventilation duct. A sound insulation board is fixedly connected to the inner wall of the first ventilation duct. Reinforcing blocks are fixedly connected to the four corners of the inner wall of the first ventilation duct. A fan frame is fixedly connected to the inner wall of the first ventilation duct, and a ventilation slot is formed in the center of the fan frame. This invention increases the airflow within the ventilation duct by installing a fan frame on the inner wall of the first ventilation duct, with a motor driving a rotating rod to rotate the fan and draw air. This improves the ventilation effect. The installation of reinforcing blocks at the dead corners of the ventilation duct prevents deformation and extends its service life.
[0004] However, the ventilation ducts of existing fire ventilation systems are not easy to install, and the ventilation ducts of fire ventilation systems do not have good filtration, which makes it easy for impurities inside the smoke to remain inside the ventilation duct. Therefore, there is an urgent need in the market for a ventilation duct installation structure for fire ventilation systems to solve these problems. Utility Model Content
[0005] The purpose of this utility model is to provide a ventilation duct installation structure for a fire ventilation system, so as to solve the problems mentioned in the background art, that the ventilation ducts of existing fire ventilation systems are not convenient to install, and that the ventilation ducts of fire ventilation systems do not have good filtration, which makes it easy for impurities inside the smoke to remain inside the ventilation duct.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A ventilation duct installation structure for a fire ventilation system includes an air inlet connecting pipe with mounting ends at both ends. Reinforcing plates are installed around the outer wall of the air inlet connecting pipe. A filter pipe is installed on one side of the air inlet connecting pipe, with a dust discharge seat at the lower end of the filter pipe. A mounting base is provided at one end of the inner wall of the filter pipe, with a filter device installed on one side of the mounting base. A connecting pipe is installed on one side of the filter pipe, and a welding seat is installed above the connecting pipe.
[0008] By adopting the above technical solution, the ventilation pipes of the fire ventilation system can be easily connected and installed, making the ventilation pipes of the fire ventilation system more convenient to use.
[0009] Furthermore, there are two mounting ends. The mounting end and the air intake connection pipe are an integral structure. One end of the mounting end is fixedly connected to the filter pipe by a connecting screw. One end of the connecting screw passes through the mounting end and extends into the interior of the filter pipe.
[0010] By adopting the above technical solution, the air intake connection pipe and the filter pipe can be easily connected and fixed by connecting screws.
[0011] Furthermore, four reinforcing plates are provided, with the lower end of each reinforcing plate welded to the air intake connection pipe and one end of each reinforcing plate welded to the mounting end.
[0012] By adopting the above technical solution, the structure between the reinforcing plate, the connecting pipe, and the mounting end can be made more robust, and the structural strength of the intake connecting pipe can be improved by the reinforcing plate.
[0013] Furthermore, the ash discharge seat and the filter pipe are an integral structure, and the upper end of the ash discharge seat is provided with an arc-shaped groove.
[0014] By adopting the above technical solution, the structure between the ash discharge seat and the filter pipe can be made more robust. The arc-shaped groove allows the filtered debris to slide down through the arc-shaped groove and then be discharged from the ash discharge seat.
[0015] Furthermore, both ends of the filter device are provided with fixed ends, and the fixed ends are fixedly connected to the mounting base by fixing screws.
[0016] By adopting the above technical solution, the filter device and the mounting base can be easily installed and fixed using the fixing screws.
[0017] Furthermore, a connecting seat is provided at one end of the filter pipe, and a fixing seat is provided at both ends of the connecting pipe. The fixing seat and the connecting seat are fixedly connected by fixing bolts.
[0018] By adopting the above technical solution, the filter pipe and the connecting pipe can be easily installed and fixed by fixing bolts.
[0019] Furthermore, the welding seat is welded to the connecting pipe, and the upper end of the welding seat is provided with a connecting end. The connecting end and the welding seat are integrally formed, and the connecting end is provided with a connecting screw hole inside.
[0020] By adopting the above technical solution, the structure between the welding seat and the connecting pipe can be made more robust, and the connecting end set by the welding seat can be used to easily install and fix the ventilation pipe.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] (1) This utility model can easily install and fix the air inlet connecting pipe and the filter pipe by connecting screws, and can easily install and fix the filter pipe and the connecting pipe by fixing bolts. This makes it easy to splice and install the ventilation pipe of the fire ventilation system, making the ventilation pipe of the fire ventilation system more convenient to use. The welding seat can easily install the ventilation pipe of the fire ventilation system, so that the ventilation pipe can be installed quickly.
[0023] (2) The present invention can improve the overall structural strength of the air intake connection pipe by setting the reinforcing plate. By installing the filter device into the inside of the filter pipe from one end of the filter pipe, the filter pipe is installed on one side of the mounting base and then fixed by fixing screws. The filter device can make the ventilation pipe have a good filtration effect, thereby filtering the impurities in the flue gas. Attached Figure Description
[0024] Figure 1 This is the overall front view of the present invention;
[0025] Figure 2 This is an overall sectional view of the present invention;
[0026] Figure 3 For the present utility model Figure 1 A magnified view of a portion of area A;
[0027] Figure 4 For the present utility model Figure 2 A magnified view of a portion of area B.
[0028] In the diagram: 1. Inlet connecting pipe; 101. Mounting end; 2. Reinforcing plate; 3. Filter pipe; 301. Ash discharge seat; 302. Mounting seat; 303. Arc groove; 304. Connecting seat; 4. Connecting pipe; 401. Fixing seat; 5. Fixing bolt; 6. Welding seat; 601. Connecting end; 602. Connecting screw hole; 7. Filter device; 701. Fixing end; 8. Fixing screw; 9. Connecting screw. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] Please see Figures 1-4 This utility model provides an embodiment of a ventilation pipe installation structure for a fire ventilation system, including an air inlet connecting pipe 1. Both ends of the air inlet connecting pipe 1 are provided with installation ends 101. Four reinforcing plates 2 are installed around the outer wall of the air inlet connecting pipe 1. The lower ends of the reinforcing plates 2 are welded to the air inlet connecting pipe 1, and one end of the reinforcing plates 2 is welded to the installation ends 101. A filter pipe 3 is installed on one side of the air inlet connecting pipe 1. A dust discharge seat 301 is provided at the lower end of the filter pipe 3. The dust discharge seat 301 and the filter pipe 3 are an integral structure. An arc-shaped groove 303 is provided at the upper end of the dust discharge seat 301. An installation seat 302 is provided at one end of the inner wall of the filter pipe 3. A filter device 7 is installed on one side of the installation seat 302. A connecting pipe 4 is installed on one side of the filter pipe 3. A welding seat 6 is installed above the connecting pipe 4 and is welded to the connecting pipe 4. The upper end of the welding base 6 is provided with a connecting end 601, which is an integral structure with the welding base 6. The connecting end 601 is provided with a connecting screw hole 602. The air inlet connecting pipe 1 can be easily connected and fixed through the mounting end 101. The reinforcing plate 2 can improve the structural strength of the air inlet connecting pipe 1. The filter device 7 inside the filter pipe 3 can effectively filter the flue gas. The connecting pipe 4 can easily discharge the flue gas. The welding base 6 can easily install the connecting pipe 4, thus making the ventilation pipe of the fire ventilation system easy to install and more convenient to use. It should be noted that, in order to save space and highlight the innovative elements of this patent, such as the working principle and process of how the ventilation pipe is used, it will not be described in detail in this patent.
[0031] See Figures 1-4There are two mounting ends 101. The mounting end 101 and the air inlet connecting pipe 1 are integrated into one structure. One end of the mounting end 101 is fixedly connected to the filter pipe 3 by a connecting screw 9. One end of the connecting screw 9 passes through the mounting end 101 and extends into the interior of the filter pipe 3. Both ends of the filter device 7 are provided with fixing ends 701. The fixing ends 701 are fixedly connected to the mounting base 302 by fixing screws 8. One end of the filter pipe 3 is provided with a connecting base 304. Both ends of the connecting pipe 4 are provided with fixing bases 401. The fixing bases 401 and the connecting bases 304 are fixedly connected by fixing bolts 5. The connecting screws 9 and fixing bolts 5 can be used to easily splice and install the ventilation pipe. The fixing screws 8 can be used to easily install and fix the filter device 7 to the mounting base 302. The filter device 7 can easily filter the flue gas.
[0032] Working principle: During use, the air inlet connecting pipe 1 and the filter pipe 3 can be easily installed and fixed by the connecting screw 9. The reinforcing plate 2 can improve the overall structural strength of the air inlet connecting pipe 1. Then, the filter device 7 is installed into the filter pipe 3 from one end of the filter pipe 3, so that the filter pipe 3 is installed on one side of the mounting base 302, and then fixed by the fixing screw 8. The filter device 7 can achieve a good filtration effect in the ventilation pipe, thereby filtering impurities in the smoke. The fixing bolt 5 can easily install and fix the filter pipe 3 and the connecting pipe 4. This makes it easy to splice and install the ventilation pipe of the fire ventilation system, making the ventilation pipe of the fire ventilation system more convenient to use. The welding base 6 can be used to easily install the ventilation pipe of the fire ventilation system.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A ventilation duct installation structure for a fire ventilation system, comprising an air inlet connecting pipe (1), characterized in that: The intake connecting pipe (1) has an installation end (101) at both ends. The outer wall of the intake connecting pipe (1) is equipped with a reinforcing plate (2). A filter pipe (3) is installed on one side of the intake connecting pipe (1). A dust discharge seat (301) is provided at the lower end of the filter pipe (3). A mounting seat (302) is provided at one end of the inner wall of the filter pipe (3). A filter device (7) is installed on one side of the mounting seat (302). A connecting pipe (4) is installed on one side of the filter pipe (3). A welding seat (6) is installed above the connecting pipe (4).
2. The ventilation duct installation structure of a fire ventilation system according to claim 1, characterized in that: There are two mounting ends (101). The mounting end (101) and the air inlet connecting pipe (1) are an integral structure. One end of the mounting end (101) is fixedly connected to the filter pipe (3) by a connecting screw (9). One end of the connecting screw (9) passes through the mounting end (101) and extends into the interior of the filter pipe (3).
3. The ventilation duct installation structure of a fire ventilation system according to claim 2, characterized in that: Four reinforcing plates (2) are provided. The lower end of the reinforcing plate (2) is welded to the air inlet connecting pipe (1), and one end of the reinforcing plate (2) is welded to the mounting end (101).
4. The ventilation duct installation structure of a fire ventilation system according to claim 3, characterized in that: The ash discharge seat (301) and the filter pipe (3) are an integral structure, and the upper end of the ash discharge seat (301) is provided with an arc groove (303).
5. The ventilation duct installation structure of a fire ventilation system according to claim 4, characterized in that: The filter device (7) is provided with a fixed end (701) at both ends, and the fixed end (701) is fixedly connected to the mounting base (302) by a fixing screw (8).
6. The ventilation duct installation structure of a fire ventilation system according to claim 5, characterized in that: One end of the filter pipe (3) is provided with a connecting seat (304), and both ends of the connecting pipe (4) are provided with fixing seats (401). The fixing seats (401) and the connecting seats (304) are fixedly connected by fixing bolts (5).
7. The ventilation duct installation structure of a fire ventilation system according to claim 6, characterized in that: The welding seat (6) is welded to the connecting pipe (4). The upper end of the welding seat (6) is provided with a connecting end (601). The connecting end (601) and the welding seat (6) are an integral structure. The connecting end (601) is provided with a connecting screw hole (602).