An air filter for filtering paint

Abstract

The utility model relates to filter technical field discloses an air filter of filterable oil paint, including: outer frame, activated carbon composite filter material, fixed in the inside of outer frame, the both sides of activated carbon composite filter material are paved with non -woven cloth layer, annular permanent -magnet, fixed on the outside wall of outer frame, fixed structure, set up in the both sides of outer frame, sealing structure, set up in the inside of mounting frame: in the utility model, through the insertion of the sliding block into the sliding slot, the installation position of the outer frame is positioned, and then the buckle is clamped into the inside of the fixed groove under the elastic force of the compression spring, and the outer frame is installed and fixed, thereby realizing the installation positioning function of the device, and the preliminary positioning can be completed only by simple insertion without complex tools and cumbersome steps, and then automatic firm fixing is realized, the installation process is simplified, the subsequent maintenance difficulty is reduced, and the installation deviation can be avoided to influence the filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to an air filter that can filter paint. Background Technology

[0002] During painting operations, a large number of paint particles and volatile substances are generated, which can easily affect the health of workers and pollute the environment when they diffuse into the air. Air filters that can filter paint have emerged as a result. As the core component of air purification equipment, they efficiently capture paint particles in the air and prevent their diffusion. This not only ensures the breathing safety of workers but also maintains a clean production environment, providing a clean air environment for painting operations.

[0003] A Chinese patent with announcement number CN213192955U discloses an air filter with non-woven fabric filtration, including a filter and a filter element. The filter has a frame at its outer end and a partition plate at one end. The filter element has a first non-woven fabric layer and a second non-woven fabric layer on its outer and inner layers. An activated carbon layer is provided between the first and second non-woven fabric layers. A coarse filter non-woven fabric layer is provided on the outer layer of the first and second non-woven fabric layers. A supporting non-woven fabric layer is provided at the bottom of the first and second non-woven fabric layers. An antibacterial layer is filled between the coarse filter non-woven fabric layer and the supporting non-woven fabric layer. By designing the filter element, the air resistance coefficient of the air filter is reduced, the service life of the filter element is extended, and the antibacterial effect of the air filter is improved, making the equipment more efficient in use.

[0004] The defects found in the device are as follows: due to the lack of standardized installation interfaces and positioning buckles in the use of the existing device, and the complex design of the connection structure between the plates and the equipment frame, which requires the use of multiple tools and step-by-step operation, the angle and position of the plates need to be adjusted repeatedly during installation, which not only consumes a lot of time, but also makes it difficult to ensure the sealing and fit between each plate and the equipment frame.

[0005] Therefore, an air filter capable of filtering paint is proposed to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an air filter that can filter paint. It aims to improve the existing technology, which lacks standardized installation interfaces and positioning clips, and has a complex connection structure between the plates and the equipment frame. It requires multiple tools and step-by-step operation, which leads to repeated adjustments of the plate angle and position during installation. This not only consumes a lot of time, but also makes it difficult to ensure a tight seal between the plates and the equipment frame.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An air filter capable of filtering paint includes: an outer frame,

[0009] The activated carbon composite filter material is fixed inside the outer frame. Non-woven fabric layers are laid on both sides of the activated carbon composite filter material. A wire mesh that is fixedly connected to the outer frame is provided on the side of the non-woven fabric layer away from the activated carbon composite filter material.

[0010] The mounting frame is fitted onto the outside of the outer frame, and mounting holes are provided on the inside of one side of the mounting frame;

[0011] A ring-shaped permanent magnet is fixed to the outer side wall of the outer frame, and the interior of the mounting frame is covered with a magnetic conductive layer that works in conjunction with the ring-shaped permanent magnet.

[0012] A fixed structure is provided on both sides of the outer frame. The fixed structure includes sliders fixed on both sides of the outer frame. Slide grooves are fixed on both sides inside the mounting frame. Ball slide rails that are slidably connected to the sliders are fixed at both ends inside the slide grooves. A top block is slidably connected inside one side of the slider. A return spring is fixed between the slider and the top block. A locking component is provided inside the other side of the slider.

[0013] A sealing structure, located inside the mounting frame, is used to seal the gap between the outer frame and the mounting frame.

[0014] Through the above technical solution, the wire mesh will initially intercept larger paint particles, followed by the non-woven fabric layer capturing medium-sized paint particles, and then adsorbing and retaining fine paint particles and volatiles, locking harmful components inside the filter material and preventing paint particles from spreading in the working environment.

[0015] As a further description of the above technical solution: the locking component includes a buckle block slidably connected to one side of the slider, a compression spring connected to the outer frame is fixed to one side of the buckle block, a pull handle is fixed to the side of the buckle block, and a fixing groove is opened inside one side of the slide groove.

[0016] The above technical solution involves inserting the slider into the slide groove to assist in positioning the outer frame. Then, the buckle is engaged in the fixing groove under the elastic force of the compression spring, which securely fixes the slider inside the slide groove, thereby completing the precise installation and reliable fixation of the outer frame and the mounting frame. When disassembly is required, pulling the handle will cause the buckle to disengage from the fixing groove. At this time, the return spring releases its elastic potential energy, pushing the slider outward and allowing it to slide out of the slide groove, making it easy to remove the outer frame.

[0017] As a further description of the above technical solution: the buckle block has a 45-degree chamfer on the side near the slide groove, and the buckle block and the fixing groove form a snap-fit ​​connection.

[0018] The above technical solution can guide the buckle to retract automatically when the slider is inserted, and quickly snap into the fixing groove after being inserted into place, thereby improving the ease of installation and the reliability of engagement.

[0019] As a further description of the above technical solution: the slider has grooves at both ends that match the ball slide rail, and the slider and the ball slide rail form a sliding structure through the grooves.

[0020] The above technical solution can reduce the frictional resistance when the slider slides, making the insertion process smoother, while ensuring the stability of the sliding direction and improving installation efficiency.

[0021] As a further description of the above technical solution: the top block forms a telescopic structure with the slider through a reset spring, and the pull handle extends into the interior of the slider and connects with the buckle block.

[0022] The above technical solution utilizes the spring force to assist in tightening and disassembly, while the pull handle facilitates manual unlocking, enhancing operational flexibility.

[0023] As a further description of the above technical solution: the sealing structure includes a sealing gasket fixed inside one side of the mounting frame, a cap fixed to the bottom end of one side of the sealing gasket, an air hole threaded to the outer side of the cap, a sealing ring fixed on the inner side wall of the mounting frame, and a connecting pipe fixed between the sealing ring and the sealing gasket.

[0024] The above technical solution involves deforming the sealing gasket when the outer frame is inserted, allowing the gas inside the sealing gasket to enter the interior of the sealing ring. Subsequently, the sealing ring tightly fits the gap between the outer frame and the mounting frame, working together with the sealing gasket to fill the radial and axial gaps between the outer frame and the mounting frame.

[0025] As a further description of the above technical solution: the sealing gasket is connected to the sealing ring through a connecting pipe, and the connecting pipes are arranged at equal intervals on one side of the sealing ring.

[0026] The above technical solution enables gas to enter the sealing ring evenly within the sealing gasket, ensuring consistent expansion throughout the sealing ring and improving the uniformity and sealing performance.

[0027] This utility model has the following beneficial effects:

[0028] 1. In this utility model, after the slider is inserted into the groove, the installation position of the outer frame is assisted. Then, the buckle is inserted into the fixing groove under the elastic force of the compression spring, and the outer frame is installed and fixed. This realizes the installation and positioning function of the device. No complicated tools and cumbersome steps are required. The initial positioning can be completed by simple insertion. Then, the device is automatically and firmly fixed, which simplifies the installation process, reduces the difficulty of subsequent maintenance, and avoids the effect of installation deviation on the filtration effect.

[0029] 2. In this utility model, the sealing gasket is squeezed when the outer frame is inserted, causing the sealing ring to expand and tightly fit the gap between the outer frame and the mounting frame. This achieves the efficient sealing function of the device, effectively preventing unfiltered air containing paint particles from leaking through the gap. It can maintain good sealing performance for a long time, reduce the frequency of cleaning and maintenance due to seal failure, and extend the service life of the device to a certain extent. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.

[0032] Figure 3 This is a three-dimensional disassembly diagram of the fixed structure of this utility model;

[0033] Figure 4 In this utility model Figure 3 Another structural diagram from a different angle;

[0034] Figure 5 This is a three-dimensional structural diagram of the sealing structure of this utility model;

[0035] Figure 6 For the present utility model Figure 2 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0036] Legend:

[0037] 1. Outer frame; 2. Wire mesh; 3. Mounting frame; 4. Fixing structure; 401. Slider; 402. Slide groove; 403. Ball bearing slide rail; 404. Fixing groove; 405. Top block; 406. Pull handle; 407. Buckle block; 408. Compression spring; 409. Return spring; 5. Mounting hole; 6. Non-woven fabric layer; 7. Activated carbon composite filter material; 8. Ring permanent magnet; 9. Sealing structure; 901. Sealing gasket; 902. Air pore; 903. Cover; 904. Sealing ring; 905. Connecting pipe; 10. Magnetic conductive layer. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1-6An air filter capable of filtering paint includes: an outer frame 1,

[0040] The activated carbon composite filter material 7 is fixed inside the outer frame 1. Non-woven fabric layers 6 are laid on both sides of the activated carbon composite filter material 7. A wire mesh 2 fixedly connected to the outer frame 1 is provided on the side of the non-woven fabric layer 6 away from the activated carbon composite filter material 7.

[0041] Mounting frame 3 is fitted onto the outside of outer frame 1, and mounting holes 5 are provided on the inside of one side of mounting frame 3;

[0042] The annular permanent magnet 8 is fixed on the outer side wall of the outer frame 1, and the interior of the mounting frame 3 is covered with a magnetic conductive layer 10 that works in conjunction with the annular permanent magnet 8.

[0043] The fixing structure 4 is provided on both sides of the outer frame 1. The fixing structure 4 includes sliders 401 fixed on both sides of the outer frame 1. Slide grooves 402 are fixed on both sides inside the mounting frame 3. Ball slide rails 403 that are slidably connected to sliders 401 are fixed at both ends inside the slide grooves 402. A top block 405 is slidably connected inside one side of slider 401. A return spring 409 is fixed between slider 401 and top block 405. A locking component is provided inside the other side of slider 401.

[0044] The sealing structure 9 is located inside the mounting frame 3 and is used to seal the gap between the outer frame 1 and the mounting frame 3.

[0045] Reference Figure 1-4 The locking assembly includes a latch 407 slidably connected to one side of the slider 401. A compression spring 408 connected to the outer frame 1 is fixed to one side of the latch 407. A pull handle 406 is fixed to the side of the latch 407. A fixing groove 404 is provided inside one side of the slide groove 402. A 45-degree chamfer is provided on the side of the latch 407 near the slide groove 402. The latch 407 and the fixing groove 404 form a snap-fit ​​connection. The two ends of the slider 401 have grooves that match the ball slide rail 403. The slider 401 and the ball slide rail 403 form a sliding structure through the grooves. The top block 405 forms a telescopic structure with the slider 401 through the return spring 409. The pull handle 406 extends into the inside of the slider 401 and connects to the latch 407.

[0046] Reference Figure 5-6 The sealing structure 9 includes a sealing gasket 901 fixed inside one side of the mounting frame 3. A cap 903 is fixed to the bottom end of one side of the sealing gasket 901. An air hole 902 is threaded to the outer side of the cap 903. A sealing ring 904 is fixed on the inner side wall of the mounting frame 3. A connecting pipe 905 is fixed between the sealing ring 904 and the sealing gasket 901. The sealing gasket 901 is connected to the sealing ring 904 through the connecting pipe 905. The connecting pipes 905 are arranged at equal intervals on one side of the sealing ring 904.

[0047] Working principle: When air carrying paint particles enters the filter, the air first comes into contact with the wire mesh 2. The wire mesh 2 will initially intercept larger paint particles, reducing the filtration pressure of subsequent filter media to a certain extent, while protecting the inner non-woven fabric layer 6 from the impact of larger particles. Next, the air passes through the non-woven fabric layer 6. With its fine fiber structure, the non-woven fabric layer 6 further captures medium-sized paint particles, greatly reducing the number of particles entering the activated carbon composite filter media 7. Subsequently, the activated carbon composite filter media 7, through the combination of its rich microporous structure and the adsorption performance of activated carbon, adsorbs and traps fine paint particles and volatiles. Through the dual action of physical adsorption and chemical adsorption, harmful components are locked inside the filter media, preventing paint particles from spreading in the working environment.

[0048] When the outer frame 1 needs to be installed, the top blocks 405 on both sides of the outer frame 1 are aligned with the sliding grooves 402 inside the mounting frame 3. During the process of pushing the outer frame 1, the top blocks 405 enter the interior of the sliding grooves 402. As the outer frame 1 continues to advance, the top blocks 405 guide the slider 401 to insert into the sliding groove 402. After the slider 401 is fully inserted into the sliding groove 402, the top blocks 405 are continuously squeezed by the inner wall of the sliding groove 402, causing the return spring 409 to compress and deform. This deformation stores elastic potential energy so as to provide sufficient thrust when disassembling the outer frame 1 to assist the outer frame 1 in detaching from the sliding groove 402. At the same time, the annular permanent magnet 8 on the outer side wall of the outer frame 1 attracts each other with the magnetic conductive layer 10 inside the mounting frame 3, generating an auxiliary stabilizing force. The sliding force helps stabilize the outer frame 1 in the installation position. As the slider 401 slides, the buckle 407 is compressed by the inner wall of the slide groove 402, which compresses the compression spring 408. When the slider 401 slides to the preset position, the buckle 407 pops out under the elastic force of the compression spring 408 and is inserted into the fixing groove 404 to fix the slider 401 firmly inside the slide groove 402, thereby completing the precise installation and reliable fixation of the outer frame 1 and the mounting frame 3. When disassembly is required, pull the handle 406 to drive the buckle 407 out of the fixing groove 404. At this time, the return spring 409 releases its elastic potential energy, pushing the slider 401 outward, so that the slider 401 slides out of the slide groove 402 and the outer frame 1 can be easily removed.

[0049] When the outer frame 1 is inserted into the mounting frame 3, the sealing gasket 901 deforms due to the squeezing action of the outer frame 1 during insertion, and the gas inside it is compressed. Then, the gas inside the sealing gasket 901 enters the sealing ring 904 through the connecting pipe 905, causing the sealing ring 904 to expand and bulge. The expanded sealing ring 904 tightly fits the gap between the outer frame 1 and the mounting frame 3, and works together with the sealing gasket 901 to fill the radial and axial gaps between the outer frame 1 and the mounting frame 3, achieving a double seal. In addition, by opening the cover 903, the air pressure inside the sealing gasket 901 and the sealing ring 904 can be adjusted through the air hole 902 to avoid excessive air pressure affecting the sealing effect, thereby improving the reliability of the seal to a certain extent and preventing unfiltered air from leaking from the gap.

[0050] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air filter capable of filtering paint, comprising: The outer frame (1) is characterized by: The activated carbon composite filter material (7) is fixed inside the outer frame (1). Non-woven fabric layers (6) are laid on both sides of the activated carbon composite filter material (7). A wire mesh (2) fixedly connected to the outer frame (1) is provided on the side of the non-woven fabric layer (6) away from the activated carbon composite filter material (7). The mounting frame (3) is fitted onto the outside of the outer frame (1), and mounting holes (5) are provided on the inside of one side of the mounting frame (3); A ring-shaped permanent magnet (8) is fixed on the outer side wall of the outer frame (1), and the interior of the mounting frame (3) is provided with a magnetic conductive layer (10) that works in conjunction with the ring-shaped permanent magnet (8); A fixing structure (4) is provided on both sides of the outer frame (1). The fixing structure (4) includes sliders (401) fixed on both sides of the outer frame (1). Slide grooves (402) are fixed on both sides inside the mounting frame (3). Ball slide rails (403) that are slidably connected to sliders (401) are fixed at both ends inside the slide grooves (402). A top block (405) is slidably connected inside one side of slider (401). A return spring (409) is fixed between slider (401) and top block (405). A locking component is provided inside the other side of slider (401). A sealing structure (9) is set inside the mounting frame (3) to seal the gap between the outer frame (1) and the mounting frame (3).

2. An air filter capable of filtering paint according to claim 1, characterized in that: The locking assembly includes a buckle (407) slidably connected to one side of the slider (401), a compression spring (408) connected to the outer frame (1) is fixed to one side of the buckle (407), a pull handle (406) is fixed to the side of the buckle (407), and a fixing groove (404) is provided inside one side of the slide groove (402).

3. An air filter capable of filtering paint according to claim 2, characterized in that: The buckle (407) has a 45-degree chamfer on the side near the slide groove (402), and the buckle (407) and the fixing groove (404) are connected by a snap-fit.

4. An air filter capable of filtering paint according to claim 2, characterized in that: The slider (401) has grooves at both ends that match the ball slide rail (403), and the slider (401) and the ball slide rail (403) form a sliding structure through the grooves.

5. An air filter capable of filtering paint according to claim 2, characterized in that: The top block (405) forms a telescopic structure with the slider (401) through the return spring (409), and the handle (406) extends into the interior of the slider (401) and is connected to the buckle (407).

6. An air filter capable of filtering paint according to claim 1, characterized in that: The sealing structure (9) includes a sealing gasket (901) fixed inside one side of the mounting frame (3), a cap (903) fixed at the bottom end of one side of the sealing gasket (901), an air hole (902) threadedly connected to the outer side of the cap (903), a sealing ring (904) fixed on the inner side wall of the mounting frame (3), and a connecting pipe (905) fixed between the sealing ring (904) and the sealing gasket (901).

7. An air filter capable of filtering paint according to claim 6, characterized in that: The sealing gasket (901) is connected to the sealing ring (904) through a connecting pipe (905), and the connecting pipes (905) are arranged at equal intervals on one side of the sealing ring (904).

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