Air cleaner with convenient core installation

Abstract

The present disclosure relates to the technical field of air filtering equipment, and an embodiment of the present disclosure provides an air filter facilitating installation of a core material, comprising a filter box, the top end of the filter box being movably connected with a protective cover, in the present disclosure, a limiting plate, a limiting block, a fixing block and a return spring are arranged, a new filter core is replaced in the filter box, after the replacement is completed, the protective cover is directly installed on the filter box, the limiting plate and the positioning rod are used for guiding, when the protective cover is installed, the limiting plate will extrude the limiting block, the limiting block is compressed into the fixing block, after the protective cover is connected, the limiting block is reset through the elastic force of the return spring and is connected with the limiting plate, at this time, the filter box and the protective cover are in a fixed state, the installation process of the filter core is simplified as a whole, the assembly can be quickly completed without the aid of professional tools, and the technical problem of complicated installation of the core material of the air filter in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of air filtration equipment technology, and more specifically, to an air filter that facilitates core material installation. Background Technology

[0002] Air filters are key components that ensure the cleanliness of the air intake for core equipment such as engines and fans. They are specifically designed to filter pollutants such as dust, particles, and impurities from the air. Through the screening, interception, and adsorption functions of the internal filter element, they prevent dust-laden airflow from directly entering the equipment, thereby reducing component wear and carbon buildup, and maintaining the power performance and operating efficiency of the equipment. These air filters are widely used in automobiles, construction machinery, industrial production lines, and household air purification equipment.

[0003] However, the above-mentioned implementation methods still have the following problems. In terms of core material installation, traditional air filters mostly adopt a bolt-fixed, multi-part splicing structure design. Installation requires the use of professional tools such as wrenches and screwdrivers, and requires repeated alignment of bolt holes and disassembly of shell components layer by layer. The operation process is cumbersome, which not only increases the usage threshold for ordinary users, but also prolongs the equipment downtime for maintenance. At the same time, the traditional installation structure lacks precise positioning and error prevention design, which can easily lead to problems such as reversed or misaligned core materials, resulting in incomplete filtration paths, causing airflow short circuits, dust leakage, and affecting the filtration effect. In addition, some installation structures are rigid connections, and disassembly requires forcibly prying or twisting the components, which can easily cause damage to the filter element edges and wrinkles in the filter paper, shortening the life of the core material. Improper installation may also damage the shell sealing surface, further reducing the overall reliability of the air filter and making it difficult to meet the needs of efficient and convenient maintenance. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an air filter with convenient core material installation, which solves the technical problem of cumbersome core material installation in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides an air filter for convenient core material installation, including a filter box, a protective cover movably connected to the top of the filter box, an air outlet pipe fixedly installed at the top of the protective cover, compression blocks fixedly connected to the left and right sides of the bottom of the protective cover, positioning rods and limiting plates fixedly installed to the left and right sides of the bottom of the protective cover, two limiting plates, the outer surface of the limiting plates movably connected to the inner surface of the filter box, a filter element movably connected inside the filter box, fixing blocks fixedly installed to the left and right sides of the filter box, the outer surface of the limiting plate movably sleeved with the inner surface of the fixing block, a limiting block movably sleeved inside the fixing block, a slider fixedly connected to the outer end of the limiting block, the outer end of the slider penetrating the fixing block and extending to the outside of the fixing block, a return spring fixedly installed on the back of the limiting block, a push block fixedly connected to the outer end of the slider, the outer surface of the limiting block movably connected to the inner surface of the limiting plate, a connecting block movably sleeved inside the filter box, and a compression spring fixedly connected to the bottom end of the connecting block.

[0006] As a preferred embodiment of this utility model, the number of the extrusion blocks is two, and the bottom end of the extrusion block is movably connected to the top end of the filter element.

[0007] As a preferred embodiment of this utility model, the number of positioning rods is four, and the outer surface of the positioning rods is movably sleeved with the inner surface of the filter box.

[0008] In a preferred embodiment of this invention, the bottom end of the compression spring is fixedly connected to the inner surface of the filter box, and the top end of the connecting block is movably connected to the bottom end of the filter element.

[0009] As a preferred embodiment of this utility model, an air inlet pipe is fixedly sleeved on the left side of the filter box, and a fixing ring is threaded onto the outer surface of the air inlet pipe.

[0010] As a preferred embodiment of this utility model, a threaded ring is fixedly installed inside the fixing ring, and a compression ring is fixedly connected to the right side of the threaded ring.

[0011] As a preferred embodiment of this utility model, the outer surface of the threaded ring is threaded with an installation cylinder, and the interior of the installation cylinder is movably fitted with a filter sheet.

[0012] As a preferred embodiment of this utility model, the number of filter elements is four, and a filter hole is provided on the right side of the mounting cylinder.

[0013] As a preferred embodiment of this utility model, the outer surface of the extrusion ring is movably sleeved with the inner surface of the mounting cylinder, and the right side of the extrusion ring is movably connected with the left side of the filter sheet.

[0014] As a preferred embodiment of this utility model, the outer surface of the air intake pipe is provided with a threaded groove, and the outer surface of the threaded groove is threadedly connected to the inner surface of the fixing ring.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, by setting a limiting plate, a limiting block, a fixing block, and a return spring, a new filter element is replaced in the filter box. After replacement, the protective cover is directly installed on the filter box and guided by the limiting plate and positioning rod. During the installation of the protective cover, the limiting plate will squeeze the limiting block, and the limiting block will be squeezed into the fixing block. After the protective cover is connected, the limiting block will be reset by the elastic force of the return spring and connected to the limiting plate. At this time, the filter box and the protective cover are in a fixed state. The filter element installation and replacement process is simplified as a whole. No special tools or complicated operating skills are required to quickly complete the assembly, which greatly reduces the difficulty of operation and is suitable for the scenario of rapid filter element replacement.

[0016] 2. In this disclosure, by setting a fixing ring, an air inlet pipe, an mounting cylinder, and a filter, dirty air undergoes preliminary filtration through the filter before entering the filter box. When the filter needs to be replaced, the operator rotates the fixing ring to disconnect it from the air inlet pipe. At this time, the mounting cylinder is rotated to disconnect it from the fixing ring, and the filter is unlocked, allowing for replacement. Pre-filtration by the filter can intercept large particles of dust, hair, and other impurities in advance, reducing the filtration load on the filter element, reducing the wear of impurities on the filter layer, slowing down the rate of decline in filtration efficiency, and ensuring a long-term stable filtration effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A schematic cross-sectional view of the overall structure in the embodiment; Figure 3 for Figure 1 A schematic diagram of the overall exploded structure in the embodiment; Figure 4 for Figure 3 A schematic diagram of the structure of the fixing block in the embodiment; Figure 5 for Figure 3 A schematic diagram of the filter box in the embodiment; Figure 6 for Figure 5 A schematic diagram of the intake pipe in the embodiment; Figure 7 for Figure 6 The embodiment shows a schematic diagram of the mounting cylinder.

[0019] In the diagram: 1. Filter box; 2. Protective cover; 3. Air outlet pipe; 4. Compression block; 5. Positioning rod; 6. Limiting plate; 7. Filter element; 8. Fixing block; 9. Limiting block; 10. Slider; 11. Return spring; 12. Push block; 13. Connecting block; 14. Compression spring; 15. Air inlet pipe; 16. Fixing ring; 17. Threaded ring; 18. Compression ring; 19. Mounting cylinder; 20. Filter disc; 21. Filter hole; 22. Threaded groove. Detailed Implementation

[0020] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0023] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1 to 7 The image shows an air filter with convenient core material installation according to an embodiment of the present disclosure, including a filter box 1. A protective cover 2 is movably connected to the top of the filter box 1. An air outlet pipe 3 is fixedly installed on the top of the protective cover 2. Compression blocks 4 are fixedly connected to both the left and right sides of the bottom of the protective cover 2. Positioning rods 5 and limiting plates 6 are fixedly installed on both the left and right sides of the bottom of the protective cover 2. There are two limiting plates 6. The outer surface of the limiting plates 6 is movably connected to the inner surface of the filter box 1. A filter element 7 is movably connected inside the filter box 1. The filter element 7 is fixedly installed on both the left and right sides of the filter box 1. The filter box 1 is equipped with a fixing block 8. The outer surface of the limiting plate 6 is movably connected to the inner surface of the fixing block 8. The inside of the fixing block 8 is movably connected to a limiting block 9. The outer end of the limiting block 9 is fixedly connected to a slider 10. The outer end of the slider 10 passes through the fixing block 8 and extends to the outside of the fixing block 8. A reset spring 11 is fixedly installed on the back of the limiting block 9. The outer end of the slider 10 is fixedly connected to a push block 12. The outer surface of the limiting block 9 is movably connected to the inner surface of the limiting plate 6. The inside of the filter box 1 is movably connected to a connecting block 13. The bottom end of the connecting block 13 is fixedly connected to a compression spring 14.

[0027] The limiting plate 6 has a groove on its surface, which connects to the limiting block 9 to fix the filter box 1 and the protective cover 2. The limiting block 9 has an inclined design on the front. When it is squeezed by external force, the limiting block 9 will retract completely into the fixing block 8. The filter element 7 has a folded design, and the outer surface of the filter element 7 is snapped with a fixing frame to ensure that the filter element 7 is fixed in position in the filter box 1 and will not easily wrinkle or break. The filter box 1 and the protective cover 2 are tightly connected. The outer surfaces of both the filter box 1 and the protective cover 2 are provided with reinforcing plates to enhance the overall strength and effectively protect the internal filter element 7.

[0028] In some examples, there are two extrusion blocks 4, with the bottom end of the extrusion block 4 movably connected to the top end of the filter element 7.

[0029] The compression block 4 is made of rubber, which can reduce the impact of vibration on the filter element 7 and ensure that the filter element 7 is stably installed in the filter box 1.

[0030] In some examples, there are four positioning rods 5, and the outer surface of the positioning rods 5 is movably fitted with the inner surface of the filter box 1.

[0031] The positioning rods 5 are used for guidance to ensure that the protective cover 2 is installed in place. At the same time, the design of multiple positioning rods 5 increases the contact area between the filter box 1 and the protective cover 2.

[0032] In some examples, the bottom end of the compression spring 14 is fixedly connected to the inner surface of the filter box 1, and the top end of the connecting block 13 is movably connected to the bottom end of the filter element 7.

[0033] The spring force of the compression spring 14 drives the connecting block 13 to move upward. The movement of the connecting block 13 will push the filter element 7 out, thus facilitating the disassembly of the filter element 7.

[0034] In some examples, an air inlet pipe 15 is fixedly sleeved on the left side of the filter box 1, and a retaining ring 16 is threaded onto the outer surface of the air inlet pipe 15.

[0035] The combination of the air intake pipe 15 and the fixing ring 16 is connected to the external pipe, thereby introducing dirty air into the filter box 1, where it is filtered by the filter element 7.

[0036] In some examples, a threaded ring 17 is fixedly mounted inside the retaining ring 16, and a compression ring 18 is fixedly connected to the right side of the threaded ring 17.

[0037] The operator generates a threaded force by rotating the retaining ring 16, at which point the retaining ring 16 moves to the left and disengages from the intake pipe 15.

[0038] In some examples, the outer surface of the threaded ring 17 is threaded with a mounting sleeve 19, and the interior of the mounting sleeve 19 is movably fitted with a filter element 20.

[0039] Dirty air is pre-filtered by filter 20 before passing through filter element 7, which intercepts large particles and pollutants.

[0040] In some examples, there are four filter elements 20, and filter holes 21 are provided on the right side of the mounting cylinder 19.

[0041] The pre-filtered air will be discharged into the filter box 1 through the filter hole 21 for secondary filtration, and the filter load of the filter element 7 will be reduced by the filter plate 20.

[0042] In some examples, the outer surface of the compression ring 18 is movably sleeved with the inner surface of the mounting cylinder 19, and the right side of the compression ring 18 is movably connected with the left side of the filter element 20.

[0043] The filter element 20 is installed inside the mounting cylinder 19 and is fixed by a combination of threaded ring 17 and compression ring 18. When disassembly is required, the operator rotates the fixing ring 16 to disengage it from the mounting cylinder 19.

[0044] In some examples, the outer surface of the intake pipe 15 is provided with a threaded groove 22, and the outer surface of the threaded groove 22 is threadedly connected to the inner surface of the retaining ring 16.

[0045] During the movement of the fixed ring 16, the threaded ring 17 will move, and the movement of the threaded ring 17 will cause the compression ring 18 to move together.

[0046] Working principle and usage process of this utility model: During use, dirty air enters the filter box 1 through the air inlet pipe 15 and is mechanically filtered by the filter element 7. The filtered air is then discharged through the air outlet pipe 3. When the filter element 7 needs to be replaced, the operator pushes the push block 12 backward, causing the slider 10 to move together. During the movement of the slider 10, the limiting block 9 will also move together. The return spring 11 is deformed by the pressure of the limiting block 9. During the movement of the limiting block 9, it will disengage from the limiting plate 6, opening the fixation. At this time, the protective cover 2 can be removed. After the protective cover 2 is removed, the filter element 7 is pushed upward by the connecting block 13, and the filter element 7 pops out. The connecting block 13 moves under the elastic force of the compression spring 14, which facilitates the removal of the filter element 7. After the filter element 7 is removed, a new filter element 7 is replaced. After the replacement is completed, the protective cover 2 is directly installed on the filter box 1 and guided by the limiting plate 6 and the positioning rod 5. During the installation of the protective cover 2, the limiting plate 6 will squeeze the limiting block 9. The limiting block 9 is squeezed into the fixing block 8, and the replacement operation of the filter element 7 is completed. The overall process of installing and replacing the filter element 7 is simplified. No special tools or complicated operating skills are required to quickly complete the assembly, which greatly reduces the difficulty of operation.

[0047] Before entering the filter box 1, the dirty air undergoes pre-filtration. The dirty air first enters the threaded ring 17 and is initially filtered by the filter element 20. When the air flows through the filter element 20, impurity particles with a diameter larger than the pore size are blocked on the surface of the filter medium, while fluid molecules and gas molecules with a diameter smaller than the pore size pass through smoothly. When the filter element 20 needs to be replaced, the operator rotates the fixing ring 16 to disconnect it from the pre-inlet pipe 15. At this time, the mounting cylinder 19 is rotated to disconnect it from the fixing ring 16, and the filter element 20 is unlocked, allowing for its replacement. The pre-filtration by the filter element 20 can intercept large particles of dust, hair, and other impurities in advance, reducing the filtration load on the filter element 7.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An air filter that facilitates core material installation, comprising a filter housing (1), characterized in that: The top of the filter box (1) is movably connected to a protective cover (2). An air outlet pipe (3) is fixedly installed on the top of the protective cover (2). Squeezing blocks (4) are fixedly connected to the left and right sides of the bottom of the protective cover (2). Positioning rods (5) and limiting plates (6) are fixedly installed on the left and right sides of the bottom of the protective cover (2). There are two limiting plates (6). The outer surface of the limiting plate (6) is movably connected to the inner surface of the filter box (1). A filter element (7) is movably connected inside the filter box (1). Fixing blocks (8) are fixedly installed on the left and right sides of the filter box (1). The outer surface of the limiting plate (6) is fixedly connected to the fixing blocks. (8) is movably sleeved on the inner surface of the fixed block (8), and a limiting block (9) is movably sleeved inside the fixed block (8). A slider (10) is fixedly connected to the outer end of the limiting block (9). The outer end of the slider (10) passes through the fixed block (8) and extends to the outside of the fixed block (8). A reset spring (11) is fixedly installed on the back of the limiting block (9). A push block (12) is fixedly connected to the outer end of the slider (10). The outer surface of the limiting block (9) is movably connected to the inner surface of the limiting plate (6). A connecting block (13) is movably sleeved inside the filter box (1). A compression spring (14) is fixedly connected to the bottom end of the connecting block (13).

2. An air filter with convenient core material installation according to claim 1, characterized in that: The number of the extrusion blocks (4) is two, and the bottom end of the extrusion block (4) is movably connected to the top end of the filter element (7).

3. An air filter with convenient core material installation according to claim 1, characterized in that: The number of positioning rods (5) is four, and the outer surface of the positioning rods (5) is movably connected to the inner surface of the filter box (1).

4. An air filter with convenient core material installation according to claim 1, characterized in that: The bottom end of the compression spring (14) is fixedly connected to the inner surface of the filter box (1), and the top end of the connecting block (13) is movably connected to the bottom end of the filter element (7).

5. An air filter with convenient core material installation according to claim 1, characterized in that: An air inlet pipe (15) is fixedly sleeved on the left side of the filter box (1), and a retaining ring (16) is threaded onto the outer surface of the air inlet pipe (15).

6. An air filter with convenient core material installation according to claim 5, characterized in that: A threaded ring (17) is fixedly installed inside the fixed ring (16), and a compression ring (18) is fixedly connected to the right side of the threaded ring (17).

7. An air filter with convenient core material installation according to claim 6, characterized in that: The outer surface of the threaded ring (17) is threaded with an installation cylinder (19), and the interior of the installation cylinder (19) is movably fitted with a filter element (20).

8. An air filter with convenient core material installation according to claim 7, characterized in that: The number of filter elements (20) is four, and a filter hole (21) is provided on the right side of the mounting cylinder (19).

9. An air filter with convenient core material installation according to claim 6, characterized in that: The outer surface of the compression ring (18) is movably sleeved with the inner surface of the mounting cylinder (19), and the right side of the compression ring (18) is movably connected with the left side of the filter (20).

10. An air filter with convenient core material installation according to claim 5, characterized in that: The outer surface of the air intake pipe (15) is provided with a threaded groove (22), and the outer surface of the threaded groove (22) is threadedly connected to the inner surface of the fixing ring (16).

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