Low-resistance air filter

Abstract

The utility model relates to a low resistance type air filter which is characterized in that a filter plate is arranged on one side inside a frame, a driving box is arranged on one side outside the frame, a first motor is arranged above the driving box, the output end of the first motor is connected with a screw rod, the outside of the screw rod is connected with a driving block, and a transmission shaft is connected to one side inside the driving block in an embedded manner; the other end of the transmission shaft is connected with the second motor, and a plurality of electrostatic dust collectors are arranged on the periphery in the frame. By arranging the cleaning roller in the frame, dust in the filter plate can be cleaned, so that dust residues in the filter plate are reduced, the dust is prevented from being accumulated in the filter plate to increase the ventilation resistance of the filter plate, and the cleaning roller can replace manual cleaning of the filter plate, so that the cleaning difficulty of the filter plate is reduced, and the service life of the filter plate is prolonged. The cleaning convenience of the filter plate is improved.

Description

A low-resistance air filter Technical Field

[0001] This utility model relates to a low-resistance air filter and belongs to the field of air filter technology. Background Technology

[0002] An air filter is an air filtration device that uses porous filter materials to capture dust from a gas-solid two-phase flow, thus purifying the gas. It delivers purified air with low dust content into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms.

[0003] For example, a detachable, modular air filter, disclosed in publication number CN220003304U, facilitates the installation and removal of the air filter through the cooperation of a third transmission rod, a second transmission rod, a first transmission rod, a pushing block, a connecting block, a connecting rod, a limiting block, a second spring, and a fixing block. The third transmission rod, limiting plate, and third spring provide an upward force to the filter plate during frame installation and filter plate removal, facilitating disassembly and replacement. However, excessive dust inside the air filter increases its resistance, affecting its performance. Furthermore, cleaning the air filter typically requires manual removal, which is cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a low-resistance air filter. By setting a cleaning roller inside the frame, the cleaning roller can move up and down under the drive of a first motor, a lead screw, and a drive block to clean the filter plate. This removes dust from the filter plate, thereby reducing dust residue and preventing dust accumulation that increases airflow resistance. Furthermore, the cleaning roller can replace manual cleaning of the filter plate, reducing the difficulty of cleaning and improving the convenience of cleaning, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-resistance air filter, comprising a frame, a filter plate provided on one side inside the frame, a drive box provided on one side outside the frame, a first motor provided above the drive box, a lead screw connected to the output end of the first motor, a drive block connected to the outside of the lead screw, a transmission shaft embedded and connected to one side inside the drive block, a cleaning roller fixedly connected to the outside of the transmission shaft, and a second motor connected to the other end of the transmission shaft, and a plurality of electrostatic precipitators provided around the inside of the frame.

[0006] As a further optimization, a rubber sealing ring is provided around the outer perimeter of the filter plate, and a handle is provided at the top of the filter plate.

[0007] As a further optimization, U-shaped frames are provided on both sides of the outer side of the frame. A pin is connected through the inside of the U-shaped frame. A pressure spring is sleeved on the outside of the pin. One end of the pressure spring abuts against a limiting plate. The limiting plate is located outside the pin. The pin is slidably connected inside the U-shaped frame.

[0008] As a further optimization, positioning blocks are provided on both sides of the outer side of the pin, and a through groove is provided inside the U-shaped frame to accommodate the positioning blocks. One end of the pin is tapered, and a groove is provided inside the filter plate to accommodate the pin. One end of the pin is embedded inside the filter plate.

[0009] As a further optimization, the drive block has a threaded hole inside that matches the thread of the lead screw, the drive block and the lead screw are connected by threads, and the drive block is slidably connected inside the drive box.

[0010] As a further optimization, one side of the cleaning roller abuts against the filter plate, a slider is provided on the outside of the drive shaft near the second motor, the drive shaft passes through the inside of the slider, the slider is located inside the frame, the second motor is connected to the outside of the slider, and a groove is provided inside the frame to accommodate the slider to pass through, and the slider is slidably connected inside the frame.

[0011] As a further optimization, the electrostatic precipitator is provided with four units, which are respectively arranged on the four inner walls around the frame, and the surface of the electrostatic precipitator is provided with several strip-shaped protrusions.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting a cleaning roller inside the frame, the cleaning roller comes into contact with the filter plate. The cleaning roller can rotate under the drive of the second motor. At the same time, the cleaning roller can move up and down under the drive of the first motor, the lead screw and the drive block to clean the filter plate. This can remove the dust from the filter plate, thereby reducing the amount of dust remaining in the filter plate and preventing dust from accumulating in the filter plate and increasing the resistance during ventilation. In addition, the cleaning roller can also replace manual cleaning of the filter plate, thereby reducing the difficulty of cleaning the filter plate and improving the convenience of cleaning the filter plate.

[0014] 2. By installing an electrostatic precipitator inside the frame, the dust cleaned off the filter plate by the cleaning roller can be adsorbed by the electrostatic precipitator. Furthermore, the electrostatic precipitator is installed around the inside of the frame, thereby increasing the dust adsorption range of the electrostatic precipitator and reducing the spread of dust to other locations. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 is a front view of this utility model;

[0017] Figure 2 is a magnified view of a portion of area A in Figure 1;

[0018] Figure 3 is a cross-sectional view of the filter plate of this utility model;

[0019] Figure 4 is a schematic diagram of the filter plate structure of this utility model;

[0020] Figure 5 is a schematic diagram of the connection structure between the pin and the filter plate of this utility model;

[0021] Figure 6 is a magnified view of a portion of area B in Figure 4;

[0022] The following components are labeled in the diagram: 1. Frame; 2. Filter plate; 3. Drive box; 4. First motor; 5. Lead screw; 6. Drive block; 7. Transmission shaft; 8. Cleaning roller; 9. Second motor; 10. Electrostatic precipitator; 11. Rubber sealing ring; 12. Handle; 13. U-shaped frame; 14. Pin; 15. Pressure spring; 16. Limit plate; 17. Positioning block; 18. Slider. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] As shown in Figures 1 to 6, a low-resistance air filter includes a frame 1, a filter plate 2 is provided on one side inside the frame 1, a drive box 3 is provided on one side outside the frame 1, a first motor 4 is provided above the drive box 3, a lead screw 5 is connected to the output end of the first motor 4, a drive block 6 is connected to the outside of the lead screw 5, a drive shaft 7 is embedded and connected to one side inside the drive block 6, a cleaning roller 8 is fixedly connected to the outside of the drive shaft 7, and the other end of the drive shaft 7 is connected to a second motor 9. Several electrostatic precipitators 10 are provided on the periphery of the frame 1 inside.

[0026] Furthermore, the filter plate 2 has a rubber sealing ring 11 around its outer perimeter, a handle 12 at its top, and U-shaped frames 13 on both sides of the frame 1. A pin 14 is connected through the U-shaped frame 13, and a pressure spring 15 is sleeved on the outside of the pin 14. One end of the pressure spring 15 abuts against a limiting plate 16, which is located outside the pin 14. The pin 14 slides within the U-shaped frame 13. Positioning blocks 17 are located on both sides of the pin 14, and the U-shaped frame 13 has a through groove to accommodate the positioning blocks 17. One end of the pin 14 is tapered. The interior has a groove to accommodate the pin 14. One end of the pin 14 is embedded inside the filter plate 2. The pin 14 can move inside the U-shaped frame 13. The positioning block 17 can rotate and support the outside of the U-shaped frame 13 through the U-shaped frame 13, thereby limiting the position of the pin 14 and facilitating the fixing of the position of the pin 14 in the U-shaped frame 13. After the positioning block 17 is aligned with the through groove in the U-shaped frame 13, the pin 14 can move and be inserted into the filter plate 2 under the drive of the pressure spring 15 and the limiting plate 16, thereby facilitating the fixing of the position of the filter plate 2 in the frame 1.

[0027] The drive block 6 has a screw hole inside that matches the thread of the lead screw 5. The drive block 6 and the lead screw 5 are connected by threads. The drive block 6 is slidably connected inside the drive box 3. One side of the cleaning roller 8 abuts against the filter plate 2. The drive shaft 7 is provided with a slider 18 on the outside near the second motor 9. The drive shaft 7 passes through the inside of the slider 18. The slider 18 is located inside the frame 1. The second motor 9 is connected to the outside of the slider 18. The frame 1 has a groove inside to accommodate the slider 18. The slider 18 is slidably connected inside the frame 1. When the lead screw 5 rotates, it can drive the drive block 6 to move up and down, thereby driving the cleaning roller 8 to move up and down on the filter plate 2 to clean the filter plate 2.

[0028] Example 2:

[0029] As shown in Figure 1, the difference between this embodiment and embodiment 1 is that: there are four electrostatic precipitators 10 respectively arranged on the four inner walls around the frame 1, and the surface of the electrostatic precipitator 10 is provided with several strip-shaped protrusions. When the cleaning roller 8 cleans the filter plate 2, the dust cleaned off the filter plate 2 can be adsorbed by the electrostatic precipitator 10, which makes it convenient to collect the dust cleaned off the filter plate 2.

[0030] The working principle of this utility model is as follows: When in use, the first motor 4 and the second motor 9 are started. When the first motor 4 is running, it drives the lead screw 5 to rotate. When the lead screw 5 rotates, it drives the drive block 6 to move up and down in the drive box 3, thereby driving the transmission shaft 7 and the cleaning roller 8 to move up and down in the frame 1. When the second motor 9 is running, it drives the cleaning roller 8 to rotate, so that the cleaning roller 8 can clean the surface of the filter plate 2 when it moves. The dust that is cleaned off will be adsorbed by the electrostatic precipitator 10. When it is necessary to remove the filter plate 2 from the frame 1 for maintenance or replacement, the pins 14 on both sides can be pulled. When the positioning block 17 is moved out of the U-shaped frame 13, the pins 14 are rotated so that the positioning block 17 can be supported in the U-shaped frame 13. Then, the handle 12 is pulled to remove the filter plate 2 from the frame 1.

[0031] 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.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low resistance air filter comprising a frame (1), characterized in that: A filter plate (2) is provided on one side inside the frame (1), and a drive box (3) is provided on one side outside the frame (1). A first motor (4) is provided above the drive box (3). A lead screw (5) is connected to the output end of the first motor (4). A drive block (6) is connected to the outside of the lead screw (5). A transmission shaft (7) is embedded and connected to one side inside the drive block (6). A cleaning roller (8) is connected to the outside of the transmission shaft (7). The other end of the transmission shaft (7) is connected to a second motor (9). Several electrostatic precipitators (10) are provided around the inside of the frame (1).

2. A low resistance air filter according to claim 1, wherein: The filter plate (2) has a rubber sealing ring (11) around its outer perimeter, and a handle (12) is provided at the top of the filter plate (2).

3. A low-resistance air filter according to claim 1, characterized in that: The frame (1) has U-shaped frames (13) on both sides. A pin (14) is connected through the U-shaped frame (13). A pressure spring (15) is sleeved on the outside of the pin (14). One end of the pressure spring (15) abuts against a limiting plate (16). The limiting plate (16) is located outside the pin (14). The pin (14) is slidably connected inside the U-shaped frame (13).

4. A low-resistance air filter according to claim 3, characterized in that: The pin (14) has positioning blocks (17) on both sides of its exterior. The U-shaped frame (13) has a through groove inside to accommodate the positioning blocks (17). One end of the pin (14) is tapered. The filter plate (2) has a groove inside to accommodate the pin (14). One end of the pin (14) is embedded inside the filter plate (2).

5. A low resistance air filter according to claim 1, wherein: The drive block (6) has a threaded hole inside that matches the thread of the lead screw (5). The drive block (6) and the lead screw (5) are connected by threads. The drive block (6) is slidably connected inside the drive box (3).

6. A low resistance air filter according to claim 1, wherein: The cleaning roller (8) abuts against the filter plate (2) on one side. A slider (18) is provided on the outside of the drive shaft (7) near the second motor (9). The drive shaft (7) passes through the inside of the slider (18). The slider (18) is located inside the frame (1). The second motor (9) is connected to the outside of the slider (18). The frame (1) is provided with a groove to accommodate the slider (18) to pass through. The slider (18) is slidably connected inside the frame (1).

7. A low resistance air filter according to claim 1, wherein: The electrostatic precipitator (10) has four units, which are respectively set on the four inner walls around the frame (1), and the surface of the electrostatic precipitator (10) has several strip-shaped protrusions.

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