Exhaust fan based on thin pipeline

Abstract

The utility model relates to the technical field of exhaust fans, and discloses an exhaust fan based on a thin pipeline, which comprises a fan box, a motor fixing plate is fixed on the upper surface of the fan box, a motor is arranged in the center of the upper surface of the motor fixing plate, a second rotating shaft is rotatably arranged in the motor, and fan blades are fixed on the circumferential outer surface of the second rotating shaft. The fan blades are driven by the motor to rotate to generate airflow, the airflow is exhausted after being accelerated through the optimized air duct, the efficient and low-noise ventilation effect is achieved, space utilization is optimized, ventilation efficiency is improved, energy consumption and noise are reduced, and installation and maintenance are easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust fans, in particular to an exhaust fan based on a thin pipe. Background Art

[0002] Thin-duct exhaust fans, a significant innovation in modern ventilation technology, are rooted in a deep understanding of the need for high efficiency, energy conservation, and space optimization. With the rapid development of industrial production and increasingly sophisticated architectural design, traditional exhaust systems, often bulky and energy-intensive, struggle to meet the dual requirements of ventilation efficiency and space utilization in modern factories, high-rise buildings, and other precision environments. This is why thin-duct exhaust fans have emerged. They offer a compact design, powerful exhaust performance, and flexible installation. Their core technology leverages advanced fluid dynamics principles to optimize the duct structure and impeller design, achieving efficient air flow and low noise emissions. Furthermore, the use of thin ducts significantly reduces space usage, enhancing the freedom and aesthetics of interior building design. Existing technologies, however, suffer from large space requirements, high energy consumption, and high noise levels, necessitating improvements. To address this, we propose a thin-duct exhaust fan. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides an exhaust fan based on a thin pipe, which solves the above-mentioned problems.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust fan based on a thin pipe, comprising a fan box, a motor fixing plate fixed on the upper surface of the fan box, a motor provided at the center of the upper surface of the motor fixing plate, a second rotating shaft provided for internal rotation of the motor, fan blades fixed on the circumferential outer surface of the second rotating shaft, a vertical connecting pipe fixed on the lower surface of the fan box, a fixing plate fixed on the lower end of the vertical connecting pipe; the fixing plate is movably connected to the square tube through a first rotating shaft and a clamping plate, and a clamping plate is sleeved on the circumferential outer surface of the first rotating shaft.

[0007] Preferably, the first rotating shaft is fixed above the square tube, four mounting plates are fixed to the outer surface of the square tube, and an annular plate is fixed below the square tube.

[0008] Preferably, a circular hole is provided on the upper surface of the fan box, the circular area of the motor fixing plate is larger than the circular hole on the upper surface of the fan box, a baffle is fixed at one end of the fan box, and a connecting pipe is fixed on one side of the baffle.

[0009] Preferably, a circular hole is provided inside the fixing plate, a circular hole is provided on the upper surface of the square tube, and the area of the fixing plate is larger than the size of the circular hole on the upper surface of the square tube.

[0010] Preferably, the square tube is in the shape of a square, and the area of the annular plate is larger than the cross-sectional area of the lower end of the square tube.

[0011] Preferably, the mounting plate is L-shaped, and four circular holes are provided below the mounting plate.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention provides an exhaust fan based on a thin pipe, which has the following beneficial effects:

[0014] This thin-duct exhaust fan significantly reduces installation space through its compact design and optimized duct structure, providing greater freedom for modern architectural design. Its refined exterior design blends seamlessly with the surrounding environment, enhancing overall aesthetics.

[0015] 2. This thin-duct exhaust fan utilizes advanced fluid dynamics principles to optimize the design of the fan impeller and air duct, resulting in smoother air flow and significantly improved exhaust efficiency. Furthermore, sophisticated noise control design achieves low-noise operation, creating a more comfortable working environment for users while also meeting modern energy conservation and emission reduction requirements.

[0016] 3. This thin-duct exhaust fan features a unique square tube and fixed plate connection design, making installation easier and faster, reducing installation difficulty and cost. This design also facilitates subsequent maintenance and repairs, increasing equipment reliability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is an isometric schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the motor of the present utility model.

[0020] In the figure: 1. Vertical connecting pipe; 2. Baffle; 3. Connecting pipe; 4. Motor; 5. Motor fixing plate; 6. Fan box; 7. Fixing plate; 8. First rotating shaft; 9. Clamping plate; 10. Square tube; 11. Mounting plate; 12. Second rotating shaft; 13. Fan blades; 14. Ring plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 , an exhaust fan based on a thin pipe, includes a fan box 6, a motor fixing plate 5 is fixed on the upper surface of the fan box 6, a motor 4 is provided in the center of the upper surface of the motor fixing plate 5, a second rotating shaft 12 is provided inside the motor 4, and a fan blade 13 is fixed on the circumferential outer surface of the second rotating shaft 12, a vertical connecting pipe 1 is fixed on the lower surface of the fan box 6, and a fixing plate 7 is fixed at the lower end of the vertical connecting pipe 1; the fixing plate 7 is movably connected to the square tube 10 through a first rotating shaft 8 and a clamping plate 9, and a clamping plate 9 is sleeved on the circumferential outer surface of the first rotating shaft 8.

[0023] Furthermore, the first rotating shaft 8 is fixed above the square tube 10 , four mounting plates 11 are fixed to the outer surface of the square tube 10 , and an annular plate 14 is fixed below the square tube 10 .

[0024] Furthermore, a circular hole is provided on the upper surface of the fan box 6, the circular area of the motor fixing plate 5 is larger than the circular hole on the upper surface of the fan box 6, a baffle 2 is fixed to one end of the fan box 6, and a connecting pipe 3 is fixed to one side of the baffle 2.

[0025] Furthermore, a circular hole is provided inside the fixing plate 7 , and a circular hole is provided on the upper surface of the square tube 10 . The area of the fixing plate 7 is larger than the size of the circular hole on the upper surface of the square tube 10 .

[0026] Furthermore, the square tube 10 is in the shape of a square, and the area of the annular plate 14 is larger than the cross-sectional area of the lower end of the square tube 10 .

[0027] Furthermore, the mounting plate 11 is L-shaped, and four circular holes are provided below the mounting plate 11 .

[0028] Working Principle: During operation, the motor 4 is started, causing the second rotating shaft 12 inside it to rotate, driving the fan blades 13 fixed to the outer circumference of the second rotating shaft 12 to rotate at high speed, generating a powerful airflow. This airflow enters through the circular hole on the upper surface of the fan housing 6. After being accelerated by the fan blades 13, it forms a high-speed airflow and is directed to the fixing plate 7 through the vertical connecting pipe 1 fixed to the lower surface of the fan housing 6. The fixing plate 7 is movably connected to the square tube 10 via the first rotating shaft 8 and the clamping plate 9. This design allows the square tube 10 to be adjusted to a certain angle as needed to adapt to different installation environments. The high-speed airflow continues through the square tube 10 and is discharged through the annular plate 14 fixed below it, entering the target exhaust area. During installation, first determine the installation location of the exhaust fan. Then, use four L-shaped mounting plates 11 to securely fasten the square tube 10 to the mounting surface, such as a wall or ceiling, using the circular holes below. The design of the mounting plates 11 not only ensures a secure fixation but also facilitates subsequent maintenance and inspection. Next, the vertical connecting pipe 1 is fixedly connected to the lower surface of the fan box 6 to ensure that the air flow path is unobstructed. Finally, the motor fixing plate 5 is fixed to the upper surface of the fan box 6, and the motor 4 is installed thereon to complete the assembly work of the whole exhaust fan.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust fan based on a thin pipe, comprising a fan box (6), characterized in that: A motor fixing plate (5) is fixed on the upper surface of the fan box (6), a motor (4) is provided at the center of the upper surface of the motor fixing plate (5), a second rotating shaft (12) is provided inside the motor (4), a fan blade (13) is fixed on the circumferential outer surface of the second rotating shaft (12), a vertical connecting pipe (1) is fixed on the lower surface of the fan box (6), and a fixing plate (7) is fixed on the lower end of the vertical connecting pipe (1); the fixing plate (7) is movably connected to the square tube (10) through a first rotating shaft (8) and a clamping plate (9), and the circumferential outer surface of the first rotating shaft (8) is sleeved with the clamping plate (9).

2. The exhaust fan based on a thin pipe according to claim 1, characterized in that: The first rotating shaft (8) is fixed above the square tube (10), four mounting plates (11) are fixed on the outer surface of the square tube (10), and an annular plate (14) is fixed below the square tube (10).

3. The exhaust fan based on a thin pipe according to claim 1, characterized in that: A circular hole is provided on the upper surface of the fan box (6); the circular area of the motor fixing plate (5) is larger than the circular hole on the upper surface of the fan box (6); a blocking net (2) is fixed to one end of the fan box (6); and a connecting pipe (3) is fixed to one side of the blocking net (2).

4. The exhaust fan based on a thin pipe according to claim 1, characterized in that: A circular hole is provided inside the fixing plate (7), and a circular hole is provided on the upper surface of the square tube (10). The area of the fixing plate (7) is larger than the size of the circular hole on the upper surface of the square tube (10).

5. The exhaust fan based on a thin pipe according to claim 1, characterized in that: The square tube (10) is in the shape of a square, and the area of the annular plate (14) is larger than the cross-sectional area of the lower end of the square tube (10).

6. The exhaust fan based on a thin pipe according to claim 2, characterized in that: The mounting plate (11) is L-shaped, and four circular holes are provided below the mounting plate (11).

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