Flow deflector group for smoke prevention and exhaust air pipe

Abstract

The utility model relates to the field of ventilation equipment, in particular to a flow deflector set for a smoke prevention and exhaust air pipe. In the prior art, there is no suitable product, and the installation method is improper, so that the production cost and the later maintenance cost are high, and the product reject ratio is increased. The flow deflector set for the smoke prevention and exhaust air pipe comprises the air pipe, a plurality of flow deflectors are arranged in the air pipe, the flow deflectors are provided with tight insertion pieces, locking holes are formed in the tight insertion pieces, insertion openings matched with the tight insertion pieces are formed in the air pipe, a locking structure for fixing the flow deflectors is arranged on the outer side of the air pipe, and the locking structure comprises a locking block. The locking block is provided with a through hole matched with the locking pin, and the locking block is provided with a locking opening matched with the locking piece; modularized assembly is carried out, and the assembly efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment, and in particular to a guide vane assembly for smoke exhaust ducts. Background Technology

[0002] With the acceleration of urbanization, the demand for smoke control and exhaust systems in buildings is constantly increasing. Smoke control and exhaust ducts are an important component of ventilation systems, whose function is to effectively guide the flow of smoke, ensure the rapid discharge of smoke in the event of a fire, and protect personnel safety. To improve the airflow efficiency of smoke control and exhaust ducts, guide vanes are often installed inside the ducts. These guide vanes help guide the airflow and ensure the high efficiency of the smoke exhaust process. Traditional methods of fixing guide vanes mostly rely on manually hammering them to the duct. This method cannot effectively fix the guide vanes, causing them to sway inside the duct during use. This not only leads to high production and maintenance costs but also easily deforms the products during production, increasing the defect rate. Therefore, a guide vane assembly for smoke control and exhaust ducts is proposed. Utility Model Content

[0003] This utility model addresses the fact that current equipment or existing technology lacks suitable products to solve the aforementioned problems, resulting in high production and maintenance costs, low efficiency, and high product defect rates during use. It provides a guide vane assembly for smoke exhaust ducts, which allows for modular assembly, improving assembly efficiency and product quality, effectively solving the problems mentioned in the background section.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] A guide vane assembly for smoke exhaust ducts includes a duct, a plurality of guide vanes are provided inside the duct, a plurality of clamping plates are fixedly provided on the guide vanes, the clamping plates have locking holes, the duct has an insertion port that mates with the clamping plates, and the outside of the duct has a locking structure for fixing the guide vanes. The locking structure includes a locking block, the locking block has a through hole that mates with a locking pin, and the locking block has a locking opening that mates with a locking element.

[0006] The locking port is provided with an internal thread, and the locking component is provided with an external thread that mates with the internal thread.

[0007] The locking structure also includes a reinforcing disc, which has a top opening that mates with the locking element.

[0008] The inner wall of the air duct is lined with sound insulation cotton.

[0009] The outer surface of the guide vane is provided with sound-absorbing cotton.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] The entire duct is made of corrosion-resistant materials such as steel plates or aluminum alloys, and the inner wall is treated with spraying or coating to prevent corrosion and wear. Inside the duct are guide vanes made of lightweight aluminum alloys and other high-strength, corrosion-resistant materials. A locking structure is used on the outside of the duct to fix the guide vanes inside the duct. The locking structure allows for faster and better fixation of the guide vanes, enabling modular assembly, improving assembly efficiency and product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of a guide vane assembly for a smoke exhaust duct according to this utility model;

[0013] Figure 2 This is a schematic diagram of a guide vane assembly for a smoke exhaust duct according to this utility model;

[0014] Figure 3 This is a schematic diagram of a locking structure for a guide vane assembly in a smoke exhaust duct according to this utility model;

[0015] Figure 4 This is a schematic diagram of the assembly of a guide vane group locking structure for a smoke exhaust duct according to this utility model;

[0016] Figure 5 This is a schematic diagram of a reinforced disc for a smoke exhaust duct guide plate assembly according to the present invention;

[0017] The following are the labels in the diagram: 1. Air duct; 2. Guide vane; 3. Locking block; 4. Locking component; 5. Locking pin; 7. Inserting plate; 8. Locking hole; 9. Insertion port; 10. Through hole; 11. Locking port; 12. Reinforcing disc. Detailed Implementation

[0018] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] A guide vane assembly for smoke exhaust ducts includes a duct 1, a plurality of guide vanes 2 inside the duct 1, a plurality of clamping plates 7 fixedly mounted on the guide vanes 2, the clamping plates 7 having locking holes 8, an insertion port 9 inside the duct 1 that mates with the clamping plates 7, and a locking structure for fixing the guide vanes 2 on the outside of the duct 1. The locking structure includes a locking block 3, the locking block 3 having a through hole 10 that mates with a locking pin 5, and a locking opening 11 that mates with a locking member 4.

[0020] like Figure 1-4As shown, the duct 1 has a square opening. The entire duct 1 is made of corrosion-resistant materials such as steel plate or aluminum alloy, and the inner wall is treated with spraying or coating to prevent corrosion and wear. Multiple guide vanes 2 can be installed inside the duct 1. The guide vanes 2 are made of lightweight aluminum alloy or other high-strength, corrosion-resistant materials. Multiple locking plates 7 are fixedly installed on the guide vanes 2, and each locking plate 7 has a locking hole 8. The upper and lower ends of the duct 1 have insertion ports 9 that cooperate with and lock the locking plates 7. During assembly, the locking plates 7 of the guide vanes 2 are inserted into the insertion ports 9 of the duct 1, and the locking structure is used to lock them in place, preventing the guide vanes 2 from being damaged in the duct. The internal shaking generates noise, and prolonged shaking can also cause the insertion plate 7 of the guide vane 2 to break, affecting normal use; the locking structure includes a locking block 3, which is convex and has a through hole 10 and a locking port 11. First, the guide vane 2 is inserted into the insertion port 9 of the air duct 1, and then the locking pin 5 is inserted into the locking hole 8 in sequence. After the through hole 10 of the locking block 3 and the locking pin 5 cooperate with each other, the locking part 4 and the locking port 11 cooperate with each other. The locking part 11 presses against the outside of the air duct 1, causing the locking pin 5 to be stretched outward, thereby locking the guide vane 2 and firmly fixing the guide vane 2 inside the air duct 1.

[0021] The locking port 11 is provided with an internal thread, and the locking member 4 is provided with an external thread that mates with the internal thread.

[0022] In order to better and more effectively lock the guide vane 2 for a long time, the locking port 11 is provided with an internal thread and the locking part 4 is provided with an external thread. The internal thread and the external thread cooperate with each other to lock. When in use, the locking part 4 is turned to drive the locking block 3, thereby locking the guide vane 2 inside the air duct 1.

[0023] The locking structure also includes a reinforcing disc 12, which has a top opening that cooperates with the locking member 4.

[0024] To prevent the locking element 4 from being over-tightened and damaging the duct 1, causing the duct 1 to deform, such as... Figure 5 As shown, the locking structure also includes a reinforcing disc 12 to increase the pressure-bearing area. The width of the contact surface between the reinforcing disc 12 and the duct 1 is greater than the width of the other side. A top opening that cooperates with the locking member 4 is provided on the side of the reinforcing disc 12 with a smaller width. When locking, the locking member 4 presses against the reinforcing disc 12 to increase the pressure-bearing area of ​​the outer wall of the duct 1 and prevent the outer wall of the duct 1 from deforming due to long-term use.

[0025] The inner wall of the air duct 1 is lined with sound insulation cotton.

[0026] When airflow flows inside duct 1, the airflow becomes unstable due to changes in air velocity, friction in the duct, and possible structural obstacles such as duct bends and joints, resulting in vibration. These vibrations interact with the inner wall of duct 1 and are ultimately converted into noise, manifested as a buzzing sound, whistling sound, or other noise when airflow passes through. To reduce this noise, sound insulation cotton is installed on the inner wall of duct 1.

[0027] The outer surface of the guide vane 2 is provided with sound-absorbing cotton.

[0028] Setting sound-absorbing cotton on the outer surface of the guide vane 2 can effectively reduce the noise generated when the airflow passes through. The sound-absorbing cotton absorbs and disperses the vibration and sound waves caused by the airflow through its porous structure, reducing the impact of airflow on the duct wall, thereby reducing the reflection and propagation of noise. It can significantly reduce the noise intensity and improve the operating environment of the equipment. It is especially suitable for occasions with high noise requirements, such as air conditioning systems and ventilation equipment.

[0029] The process of using the guide vane assembly for smoke exhaust ducts of this utility model is as follows: The duct as a whole is made of corrosion-resistant materials such as steel plate or aluminum alloy, and the inner wall is treated with spraying or coating to prevent corrosion and wear; the duct is equipped with guide vanes, which are made of lightweight aluminum alloy and other high-strength, corrosion-resistant materials. A locking structure is used on the outside of the duct to fix the guide vanes inside the duct. The locking structure can fix the guide vanes faster and better, and modular assembly can be carried out to improve assembly efficiency and product quality. In order to reduce the noise generated by the airflow in the duct, sound insulation cotton is provided around the inner wall of the duct, and sound absorption cotton is provided on the outer surface of the guide vanes.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A guide vane assembly for smoke exhaust ducts, comprising a duct (1), characterized in that: The air duct (1) is provided with multiple guide vanes (2), and multiple inserting plates (7) are fixedly provided on the guide vanes (2). The inserting plates (7) are provided with locking holes (8). The air duct (1) is provided with an insertion port (9) that cooperates with the inserting plates (7). The air duct (1) is provided with a locking structure to fix the guide vanes (2) on the outside. The locking structure includes a locking block (3). The locking block (3) is provided with a through hole (10) that cooperates with the locking pin (5). The locking block (3) is provided with a locking port (11) that cooperates with the locking member (4).

2. The guide vane assembly for smoke exhaust ducts as described in claim 1, characterized in that: The locking port (11) is provided with an internal thread, and the locking member (4) is provided with an external thread that mates with the internal thread.

3. The guide vane assembly for smoke exhaust ducts as described in claim 1, characterized in that: The locking structure also includes a reinforcing disc (12), which has a top opening that cooperates with the locking member (4).

4. The guide vane assembly for smoke exhaust ducts as described in claim 1, characterized in that: The inner wall of the air duct (1) is provided with sound insulation cotton.

5. The guide vane assembly for smoke exhaust ducts as described in claim 1, characterized in that: The outer surface of the guide plate (2) is provided with sound-absorbing cotton.

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