Air suspension fan filter box convenient to clean and replace

Abstract

The utility model discloses a filter box convenient to clean and replace of air suspension fan, including air suspension fan body, the outer wall fixed inlay of air suspension fan body has the inner frame, the inside fixed connection of inner frame has the cross pipe, two net boards are fixedly connected between the cross pipe and inner frame, the outer wall of cross pipe is equipped with the rectangular recess, the outer wall of rectangular recess places rubber pad. The utility model discloses the cooperation of eccentric extrusion piece and rotating locking cap, need not special tool to remove the fixedness of sealing door, avoid the dependency problem of traditional key lock, through the arc piece and nylon webbing, realize the easy separation of front filter cotton and filter core, reduce the disassembly difficulty caused by interference fit or pollution expansion, the filter core is bidirectional spacing through the net board and sealing door, only need to place in position during installation, can automatic alignment, when replacing, can buckle out from the edge force, reduce operation intensity and damage risk.

Description

Technical Field

[0001] This utility model relates to the field of air suspension fan technology, and in particular to a filter box for an air suspension fan that is easy to clean and replace. Background Technology

[0002] An air-suspended fan is a highly efficient and energy-saving device that utilizes aerodynamic principles and magnetic levitation technology. Its core feature lies in the levitation force generated by high-speed rotating airflow, allowing the fan rotor to rotate freely without physical contact, thus achieving high efficiency, low noise, and low energy consumption. The air intake system of an air-suspended fan is typically equipped with a filter box, such as a built-in filter element, to remove impurities from the air. When the filter box becomes clogged, the internal filter element needs to be cleaned or replaced promptly to avoid reduced airflow and increased energy consumption due to blockage. The filter element inside the filter box usually needs to fit tightly against the inner wall of the filter box to ensure that the gas is completely processed by the filter element as it passes through, avoiding "short-circuiting" or "bypassing" phenomena (i.e., unfiltered media flowing directly through gaps).

[0003] In existing technologies, because the filter element needs to be tightly embedded in the filter box, the fit tolerance between its outer edge and the inner wall of the box is small, and interference fit or snap-locking structures may even be used. After long-term use, the filter element may expand due to adsorption of pollutants or the influence of humidity and temperature, further increasing the difficulty of disassembly. Operators need to pry or use tools to remove the filter element, which is not only time-consuming and laborious, but may also damage the inner wall or sealing structure of the filter box, affecting the sealing performance of subsequent installations. The sealing door of existing filter boxes is usually designed with a key locking mechanism to prevent unauthorized operation or accidental opening. However, if the key is lost or damaged, the user will not be able to replace the filter element normally, leading to system maintenance stagnation, and may even affect the filtration effect or cause safety hazards due to the filter element being used beyond its service life. Therefore, we propose a filter box with an air suspension fan that is easy to clean and replace, to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an air suspension fan with a filter box that is easy to clean and replace.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A filter box for easy cleaning and replacement of an air-suspended fan includes an air-suspended fan body. An inner frame is fixedly embedded in the outer wall of the air-suspended fan body. A horizontal tube is fixedly connected inside the inner frame. Two mesh plates are fixedly connected between the horizontal tube and the inner frame. A rectangular groove is formed on the outer wall of the horizontal tube. A rubber pad is placed on the outer wall of the rectangular groove. A nylon webbing is fixedly connected to the outer wall of the rubber pad. Two filter elements are placed inside the inner frame. A sealing door is hinged to the outer wall of the air-suspended fan body. Four arc-shaped pieces are rotatably embedded in the inner wall of the sealing door. A pre-filter cotton is placed inside the sealing door. A locking assembly is provided on the outer wall of the air-suspended fan body.

[0007] Preferably, the locking assembly includes a threaded post, one end of which is fixedly connected to the outer wall of the air suspension fan body. A compression plate is rotatably sleeved on the outer wall of the threaded post, and a locking cap is threadedly sleeved on the outer wall of the threaded post. The locking assembly is used to fix the position of the sealing door.

[0008] Preferably, one end of each of the two filter elements is pressed against the outer wall of the horizontal tube, and the two filter elements are placed at the upper and lower positions of the horizontal tube by setting the horizontal tube.

[0009] Preferably, one end of each of the four arc-shaped plates is pressed against the outer wall of the pre-filter cotton, thereby fixing the position of the pre-filter cotton through the four arc-shaped plates.

[0010] Preferably, the outer wall of the locking cap is pressed against the outer wall of the compression piece, and the outer wall of the compression piece is pressed against the outer wall of the sealing door. The compression piece is fixed by applying pressure through the locking cap.

[0011] Preferably, the outer wall of the sealing door is provided with multiple through holes, through which outside air enters.

[0012] Preferably, multiple feet are fixedly connected to the bottom of the air suspension fan body, and the multiple feet support the air suspension fan body.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution utilizes an eccentric compression plate and a rotating locking cap, allowing for easy release of the sealing door without the need for special tools, thus avoiding the reliance on traditional key locks. An arc-shaped plate and nylon webbing facilitate easy separation of the pre-filter cotton and filter element, reducing disassembly difficulties caused by interference fits or contamination expansion. The filter element is bi-directionally positioned by a mesh plate and the sealing door; during installation, it automatically aligns upon placement, and during replacement, it can be easily removed by applying force from the edge, reducing operational effort and the risk of damage. While maintaining sealing performance, it eliminates the limitations of traditional rigid structures on maintenance efficiency, ensuring efficient and safe filter element replacement and extending equipment lifespan. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a filter box for an air suspension fan that is easy to clean and replace, as proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a filter box for an air suspension fan that is easy to clean and replace, as proposed in this utility model.

[0018] Figure 3 This is an installation diagram of a filter box for an air suspension fan that is easy to clean and replace, as proposed in this utility model.

[0019] Figure 4 This is a front view structural diagram of a filter box for an air suspension fan that is easy to clean and replace, as proposed in this utility model.

[0020] Figure 5 This is a partial three-dimensional structural diagram of a filter box for an air suspension fan that is easy to clean and replace, as proposed in this utility model.

[0021] In the diagram: 1. Air suspension fan body; 2. Inner frame; 3. Horizontal tube; 4. Mesh plate; 5. Rectangular groove; 6. Rubber pad; 7. Nylon webbing; 8. Filter element; 9. Sealing door; 10. Arc-shaped plate; 11. Pre-filter cotton; 12. Threaded column; 13. Extrusion plate; 14. Locking cap; 15. Through hole; 16. Foot column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1-5As shown, a filter box for easy cleaning and replacement by an air suspension fan is disclosed. It includes an air suspension fan body 1, an inner frame 2 fixedly embedded in the outer wall of the air suspension fan body 1, the inner frame 2 serving as the outer shell of the filter box, a horizontal tube 3 fixedly connected inside the inner frame 2, two mesh plates 4 fixedly connected between the horizontal tube 3 and the inner frame 2, a rectangular groove 5 opened on the outer wall of the horizontal tube 3, a rubber pad 6 placed on the outer wall of the rectangular groove 5, a nylon webbing 7 fixedly connected to the outer wall of the rubber pad 6, the rubber pad 6 and the rectangular groove 5 are interference fit, and the rubber pad 6 is fixed in the rectangular groove 5 by compression.

[0024] Inside the inner frame 2, two filter elements 8 are placed. The outer walls of the two filter elements 8 are pressed against the inner wall of the inner frame 2. The filter elements 8 intercept finer particles. One end of each filter element 8 is pressed against the outer wall of the horizontal pipe 3. A sealing door 9 is hinged to the outer wall of the air suspension fan body 1. Multiple through holes 15 are evenly opened on the outer wall of the sealing door 9. Four arc-shaped pieces 10 are rotatably embedded in the inner wall of the sealing door 9. Four I-shaped parts are rotatably embedded in the outer wall of the sealing door 9. The outer wall of the I-shaped parts is fixedly connected to one end of the arc-shaped pieces 10. A pre-filter cotton 11 is placed inside the sealing door 9. The pre-filter cotton 11 filters dust and large particulate pollutants in the air. The filter elements 8 and the pre-filter cotton 11 work together to ensure the cleanliness of the air entering the fan, thereby extending the equipment life and ensuring operating efficiency. One end of each of the four arc-shaped pieces 10 is pressed against the outer wall of the pre-filter cotton 11. Multiple foot posts 16 are fixedly connected to the bottom of the air suspension fan body 1.

[0025] The outer wall of the air suspension fan body 1 is provided with a locking assembly, which includes a threaded post 12. One end of the threaded post 12 is fixedly connected to the outer wall of the air suspension fan body 1. The outer wall of the threaded post 12 is rotatably fitted with a compression plate 13. The compression plate 13 rotates through the threaded post 12. The outer wall of the threaded post 12 is threadedly fitted with a locking cap 14. The locking cap 14 drives the compression plate 13 to be fixed on the sealing door 9. The outer wall of the locking cap 14 is pressed against the outer wall of the compression plate 13, and the outer wall of the compression plate 13 is pressed against the outer wall of the sealing door 9.

[0026] Working principle: When the air suspension fan body 1 needs to replace the filter element 8 and the pre-filter cotton 11 after long-term use, rotate the locking cap 14 to prevent it from pressing against the outer wall of the extrusion plate 13, so that the extrusion plate 13 can rotate through the threaded column 12. Since the extrusion plate 13 is eccentrically set, rotating the extrusion plate 13 prevents it from pressing against the outer wall of the sealing door 9, releasing the position fixation of the sealing door 9. Rotate the sealing door 9 to expose the inner frame 2. Rotate the four arc-shaped plates 10 so that one end no longer presses against the outer wall of the pre-filter cotton 11, releasing the position fixation of the pre-filter cotton 11, and replace it. Then, hold the nylon webbing 7 to pull out the rubber pad 6, exposing the rectangular groove 5, thereby exposing the edge of the filter element 8, making it easy to apply force from the edge to pry out the two filter elements 8. Then place the new filter element 8 on the top and bottom of the horizontal tube 3, and in the inner frame 2. The two sides are supported and limited by the mesh plate 4 and the sealing door 9 respectively.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter box for an air-suspended fan that is easy to clean and replace, comprising an air-suspended fan body (1), characterized in that, The outer wall of the air suspension fan body (1) is fixedly inlaid with an inner frame (2). A horizontal tube (3) is fixedly connected inside the inner frame (2). Two mesh plates (4) are fixedly connected between the horizontal tube (3) and the inner frame (2). A rectangular groove (5) is opened on the outer wall of the horizontal tube (3). A rubber pad (6) is placed on the outer wall of the rectangular groove (5). A nylon webbing (7) is fixedly connected to the outer wall of the rubber pad (6). Two filter elements (8) are placed inside the inner frame (2). A sealing door (9) is hinged to the outer wall of the air suspension fan body (1). Four arc-shaped pieces (10) are rotatably inlaid on the inner wall of the sealing door (9). A pre-filter cotton (11) is placed inside the sealing door (9). A locking assembly is provided on the outer wall of the air suspension fan body (1).

2. The air suspension fan filter box for easy cleaning and replacement according to claim 1, characterized in that, The locking assembly includes a threaded post (12), one end of which is fixedly connected to the outer wall of the air suspension fan body (1). A compression plate (13) is rotatably sleeved on the outer wall of the threaded post (12), and a locking cap (14) is threadedly sleeved on the outer wall of the threaded post (12).

3. The air suspension fan filter box for easy cleaning and replacement according to claim 1, characterized in that, One end of each of the two filter elements (8) is pressed against the outer wall of the horizontal tube (3).

4. The air suspension fan filter box for easy cleaning and replacement according to claim 1, characterized in that, One end of each of the four arc-shaped plates (10) is pressed against the outer wall of the pre-filter cotton (11).

5. The filter box for an air suspension fan that is easy to clean and replace according to claim 2, characterized in that, The outer wall of the locking cap (14) is pressed against the outer wall of the extrusion piece (13), and the outer wall of the extrusion piece (13) is pressed against the outer wall of the sealing door (9).

6. The air suspension fan filter box for easy cleaning and replacement according to claim 1, characterized in that, The outer wall of the sealing door (9) is uniformly provided with multiple through holes (15).

7. The air suspension fan filter box for easy cleaning and replacement according to claim 1, characterized in that, Multiple feet (16) are fixedly connected to the bottom of the air suspension fan body (1).

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