Low resistance air filter cartridge plastic outer shell

Abstract

The utility model discloses a low resistance air filter core plastic outer frame, including main body mechanism and adjusting mechanism, the main body mechanism includes the border, the even filter core of fixed mounting in the inside of border, the folding filter core of setting in the inside of even filter core, the fixed block of fixed mounting in the both ends of border, the outer cover box of fixed mounting in the inside of fixed block, the inner cover box of inserting in the inside of outer cover box. In the utility model, through the sleeve joint of outer cover box and inner cover box, make two borders interconnect, thereby will even filter core and the position of folding filter core fix, guarantee basic function, the inside setting of outer cover box and inner cover box gear wheel engagement with the toothed plate, thereby the border of both sides will symmetrical evenly spread, avoid the emergence of one side spread another folding situation, improved the reliability of structure, through the adjusting mechanism adjustment the distance between two borders, make it suitable for the equipment use of different width, improved the use flexibility of device.

Description

Technical Field

[0001] This utility model relates to the field of filter element outer frame technology, specifically a low-resistance air filter element plastic outer frame. Background Technology

[0002] Air filters are structures used to filter air and are commonly used in equipment that requires clean air, such as engines and air conditioners. Air filters are relatively soft and require an outer frame for shaping to facilitate use. However, existing filter frames are spliced ​​into fixed sizes, which limits their installation to equipment of the corresponding size. Therefore, a low-resistance plastic frame for air filters is proposed. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows:

[0005] A low-resistance air filter plastic outer frame includes a main body mechanism and an adjustment mechanism. The main body mechanism includes a frame, a flat filter element fixedly installed inside the frame, a folded filter element disposed inside the flat filter element, fixing blocks fixedly installed at both ends of the frame, an outer casing fixedly installed inside the fixing blocks, an inner casing inserted into the outer casing, and a middle fixing block connected to the other end of the inner casing. The adjustment mechanism includes a gear rotatably connected to the inner side of the middle fixing block, a toothed plate fixedly installed inside the fixing block and located inside the outer casing, and an inner rod inserted into the toothed plate. The toothed plate is meshed with the gear.

[0006] Preferably, the bottom end of the middle fixing block is also fixedly connected to the flat filter element, and the width of the flat filter element connected to the middle fixing block is greater than the width of the flat filter elements on both sides.

[0007] Preferably, the number of pleated filter elements is two sets, with the two sets of pleated filter elements located between the three sets of flat filter elements.

[0008] Preferably, a limiting block is fixedly installed on the inner side of the outer casing, and a limiting groove is formed on the inner casing, with the limiting block slidably connected in the limiting groove.

[0009] Preferably, the fixing block has fixing holes on its side.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0011] In this invention, the outer and inner sleeves are connected to each other, thereby fixing the positions of the flat and folded filter elements and ensuring basic functionality. Meanwhile, toothed plates and gears are installed inside the outer and inner sleeves, allowing the two side frames to unfold symmetrically and evenly, preventing one side from unfolding while the other folds, thus improving structural reliability. The adjustment mechanism allows for adjustment of the distance between the two side frames, making it suitable for devices of different widths and increasing the device's flexibility. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the unfolded form of one embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the shrinkage of one embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the adjustment mechanism according to one embodiment of the present invention.

[0015] Figure label:

[0016] 110. Frame; 120. Flat filter element; 130. Folded filter element; 140. Fixing block; 150. Outer box; 151. Limiting block; 160. Inner box; 161. Limiting groove; 170. Middle fixing block;

[0017] 210. Gear; 220. Tooth plate; 230. Inner rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a low-resistance air filter plastic outer frame.

[0020] Example:

[0021] Combination Figure 1-3As shown, this utility model provides a low-resistance air filter plastic outer frame, including a main body mechanism and an adjustment mechanism. The main body mechanism includes a frame 110, a flat filter element 120 fixedly installed inside the frame 110, a folded filter element 130 disposed inside the flat filter element 120, fixing blocks 140 fixedly installed at both ends of the frame 110, an outer casing 150 fixedly installed inside the fixing blocks 140, an inner casing 160 inserted into the outer casing 150, and a middle fixing block 170 connected to the other end of the inner casing 160. The bottom end of the middle fixing block 170 is also fixedly connected to the flat filter element 120, and the width of the flat filter element 120 connected to the middle fixing block 170 is... The width of the flat filter elements 120 on both sides is greater than that of the two flat filter elements 120. There are two sets of folded filter elements 130, which are located between the three sets of flat filter elements 120. The inner side of the outer box 150 is fixedly installed with a limiting block 151, and the inner box 160 is provided with a limiting groove 161. The limiting block 151 is slidably connected in the limiting groove 161. The side of the fixing block 140 is provided with a fixing hole. The adjustment mechanism includes a gear 210 rotatably connected to the inner side of the middle fixing block 170, a toothed plate 220 fixedly installed inside the fixing block 140 and located inside the outer box 150, and an inner rod 230 inserted into the toothed plate 220. The toothed plate 220 is meshed with the gear 210.

[0022] Specifically, the pleated filter element 130 is designed to be folded, which improves the filtration effect and allows it to be stretched and unfolded to change its length, thus improving the practicality of the device. When the pleated filter element 130 is unfolded, the filtration efficiency is improved, but the filtration effect will be reduced to a certain extent. Therefore, the filtration intensity can be adjusted by stretching the pleated filter element 130 as needed, thus making it suitable for different needs.

[0023] The working principle and usage process of this utility model are as follows: First, take out the filter element in the folded state, then pull the side frames 110 on both sides. By using the meshing of the gear 210 and the toothed plate 220, the two side frames 110 are symmetrically and evenly unfolded, thereby unfolding the folded filter element 130. Finally, it can be fixed and installed by the fixing block 140.

[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A low-resistance air filter element plastic outer frame, characterized in that, include: Main body and regulatory body; The main structure includes a frame (110), a flat filter element (120) fixedly installed inside the frame (110), a folded filter element (130) set inside the flat filter element (120), a fixing block (140) fixedly installed at both ends of the frame (110), an outer box (150) fixedly installed inside the fixing block (140), an inner box (160) inserted into the outer box (150), and a middle fixing block (170) connected to the other end of the inner box (160). The adjustment mechanism includes a gear (210) rotatably connected to the inside of the middle fixed block (170), a toothed plate (220) fixedly installed inside the fixed block (140) and located inside the outer casing (150), and an inner rod (230) inserted into the toothed plate (220). The toothed plate (220) is meshed with the gear (210).

2. The low-resistance air filter element plastic outer frame according to claim 1, characterized in that, The bottom end of the middle fixing block (170) is also fixedly connected to the flat filter element (120), and the width of the flat filter element (120) connected to the middle fixing block (170) is greater than the width of the flat filter elements (120) on both sides.

3. The low-resistance air filter element plastic outer frame according to claim 1, characterized in that, The number of pleated filter elements (130) is two sets, and the two sets of pleated filter elements (130) are located between the three sets of flat filter elements (120).

4. The low-resistance air filter element plastic outer frame according to claim 1, characterized in that, A limiting block (151) is fixedly installed on the inner side of the outer box (150), and a limiting groove (161) is opened on the inner box (160). The limiting block (151) is slidably connected in the limiting groove (161).

5. The low-resistance air filter element plastic outer frame according to claim 1, characterized in that, The fixing block (140) has fixing holes on its side.

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