An air filter

Abstract

The utility model relates to the technical field of air filters, in particular to an air filter, which comprises a front pressing plate. An adjusting groove is formed inside the front pressing plate, and a positioning groove is also formed inside the front pressing plate. The positioning groove is connected to the adjusting groove through a communication groove. A screw rod is movably connected to the inner wall of the adjusting groove, and an adjusting plate is threadedly connected to the outer wall of the screw rod. Hollow grooves are formed at both ends of the adjusting plate, and linkage columns are fixedly connected to the inner walls of the hollow grooves. A locking plate is arranged inside the communication groove, and a linkage block is fixedly connected to one end of the locking plate located inside the adjusting groove. A linkage groove is formed inside the linkage block, and the linkage column penetrates through the linkage groove. A rear pressing plate is arranged at the rear end of the front pressing plate. A positioning block is fixedly connected to the outer wall of the rear pressing plate, and a locking groove is formed on the outer wall of the positioning block. One end of the locking plate extends into the locking groove, and a filter element is arranged between the front pressing plate and the rear pressing plate. For the utility model, the installation and disassembly of the filter element can be quickly completed without tools, the operation is simple, and at the same time, the stability and sealing performance of the filter element are ensured, and the filtering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of air filters, and more particularly to an air filter. Background Technology

[0002] Air filters are key devices used to remove pollutants such as particulate matter, dust, pollen, and bacteria from the air. Their purification effect directly affects indoor and outdoor air quality. With their high-efficiency filtration performance, air filters are widely used in many fields such as industrial cleanrooms, medical sterile environments, commercial buildings, and residential air conditioning systems, becoming an important part of modern air quality management.

[0003] Currently, air filters on the market typically require the entire filter to be disassembled and replaced after the filter element reaches the end of its service life. This integrated design means that users cannot replace the filter element separately. They must use professional tools or complicated operations to separate the filter element from the outer frame structure, which brings great inconvenience to daily maintenance. This not only increases the cost of use, but also wastes resources such as reusable parts like the outer frame. Utility Model Content

[0004] In view of this, the present invention provides an air filter, the main technical problem to be solved is that: the air filters on the market at present usually need to be completely disassembled and replaced after the filter element reaches the end of its service life. This integrated design makes it impossible for users to replace the filter element alone. It is necessary to separate the filter element from the outer frame structure with professional tools or complicated operations, which brings great inconvenience to daily maintenance. This not only increases the cost of use, but also causes a waste of resources for reusable parts such as the outer frame.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air filter, comprising a front pressure plate, two adjustment grooves, and multiple positioning grooves. The positioning grooves are connected to the adjustment grooves via a connecting groove. A lead screw is movably connected to the inner wall of the adjustment groove, and an adjustment plate is threadedly connected to the outer wall of the lead screw. Hollow grooves are formed at both ends of the adjustment plate, and a linkage column is fixedly connected to the inner wall of each hollow groove. A locking plate is provided inside the connecting groove, and a linkage block is fixedly connected to one end of the locking plate inside the adjustment groove. A linkage groove is formed inside the linkage block, and the linkage column penetrates through the linkage groove. A rear pressure plate is provided at the rear end of the front pressure plate, and multiple positioning blocks are fixedly connected to the outer wall of the rear pressure plate. Each positioning block is located inside a multiple positioning groove, and a locking groove is formed on the outer wall of each positioning block. One end of the locking plate extends into the locking groove. A filter element is provided between the front and rear pressure plates.

[0006] By adopting the above technical solutions, the filter element can be quickly disassembled and securely fixed, simplifying the maintenance process and improving ease of use.

[0007] As a further description of the above technical solution:

[0008] The linkage block is located inside the hollow groove, the locking plate is located at the end of the locking groove and is inclined, and the locking groove is triangular.

[0009] By adopting the above technical solution, the inclined surface design makes the locking process smoother, and the triangular locking groove enhances the locking stability.

[0010] As a further description of the above technical solution:

[0011] The front pressure plate and the rear pressure plate are provided with an outer frame. The inner wall of the outer frame is provided with a slot. The inner wall of the slot is provided with a groove. The two outer walls of the front pressure plate are fixedly connected with buckles. The outer wall of the buckle is provided with a triangular block. The triangular block is located inside the groove.

[0012] By adopting the above technical solution, the snap-fit ​​connection design makes overall assembly more convenient while ensuring the connection is firm.

[0013] As a further description of the above technical solution:

[0014] One end of the lead screw extends to the outside of the front pressure plate and is fixedly connected to a knob, the outer wall of which is provided with anti-slip texture.

[0015] By adopting the above technical solution, the anti-slip knob design is easy to operate and improves the convenience and accuracy of adjustment.

[0016] As a further description of the above technical solution:

[0017] The filter element has through slots inside, and multiple positioning blocks pass through multiple through slots respectively.

[0018] By adopting the above technical solution, the cooperation between the positioning block and the through groove ensures the accurate positioning of the filter element and prevents installation misalignment.

[0019] As a further description of the above technical solution:

[0020] The adjusting plate is I-shaped, and the buckle is U-shaped.

[0021] By adopting the above technical solutions, the I-shaped adjustment plate and U-shaped buckle enhance the structural strength and stability.

[0022] By employing the above technical solution, the air filter of this utility model has at least the following beneficial effects:

[0023] Compared to existing technologies, this air filter, when installing the filter element, first places it between the front and rear pressure plates. Multiple positioning blocks on the rear pressure plate are inserted into the positioning grooves of the front pressure plate and pass through the filter element via through slots. Then, rotating the knob on the lead screw moves the adjusting plate towards the center of the outer frame. The linkage column of the adjusting plate slides within the linkage groove, pushing the linkage block and locking plate towards the positioning block. The beveled end of the locking plate enters the triangular locking groove of the positioning block, achieving a tight fixation between the front and rear pressure plates, thus clamping the filter element. This process allows for quick and easy installation and removal of the filter element without tools, simplifying operation while ensuring the stability and sealing of the filter element and improving filtration efficiency.

[0024] Compared to existing technologies, this air filter inserts the assembled front and rear pressure plates into the outer frame as a whole. The clips on both sides of the front pressure plate align with the slots on the outer frame, and the triangular blocks are embedded in the recesses. Through the cooperation of the clips and slots, and the locking of the triangular blocks into the recesses, a secure connection is achieved between the front pressure plate and the outer frame. The outer frame is reusable; only the filter element needs to be replaced, reducing operating costs. The snap-on design simplifies the installation process and facilitates daily maintenance and filter replacement for users. Attached Figure Description

[0025] Figure 1 This is a first-view overall structural diagram of an air filter proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the outer frame of an air filter proposed in this utility model;

[0027] Figure 3 This is a schematic diagram showing the connection state of the front and rear pressure plates of an air filter proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of an air filter proposed in this utility model;

[0029] Figure 5 This utility model proposes an air filter. Figure 4 Enlarged schematic diagram of structure A in the middle;

[0030] Figure 6 This is a schematic diagram of the interior of the front pressure plate of an air filter proposed in this utility model;

[0031] Figure 7 This is a schematic diagram of an air filter adjustment plate, linkage block, and locking plate proposed in this utility model;

[0032] Figure 8 This is an exploded view of the front pressure plate, rear pressure plate, and filter element of an air filter proposed in this utility model.

[0033] Legend:

[0034] 1. Front pressure plate; 2. Adjustment groove; 3. Positioning groove; 4. Connecting groove; 5. Lead screw; 6. Adjustment plate; 7. Hollow groove; 8. Linkage column; 9. Locking plate; 10. Linkage block; 11. Linkage groove; 12. Rear pressure plate; 13. Positioning block; 14. Locking groove; 15. Filter element; 16. Outer frame; 17. Slot; 18. Groove; 19. Buckle; 20. Triangular block. Detailed Implementation

[0035] Reference Figure 1-8 This utility model provides an air filter comprising: a front pressure plate 1, two adjustment grooves 2 are provided inside the front pressure plate 1, and multiple positioning grooves 3 are provided inside the front pressure plate 1. The positioning grooves 3 are connected to the adjustment grooves 2 via a connecting groove 4. A lead screw 5 is movably connected to the inner wall of the adjustment groove 2. One end of the lead screw 5 extends to the outside of the front pressure plate 1 and is fixedly connected to a knob. The outer wall of the knob is provided with anti-slip texture. An adjustment plate 6 is threadedly connected to the outer wall of the lead screw 5. The adjustment plate 6 is I-shaped and has hollow grooves 7 at both ends. A linkage column 8 is fixedly connected to the inner wall of the hollow groove 7. A locking plate 9 is provided inside the connecting groove 4, and a linkage block is fixedly connected to one end of the locking plate 9 located inside the adjustment groove 2. 10. The linkage block 10 is located inside the hollow groove 7. The linkage block 10 has a linkage groove 11 inside. The linkage column 8 passes through the linkage groove 11. The rear end of the front pressure plate 1 is provided with a rear pressure plate 12. The outer wall of the rear pressure plate 12 is fixedly connected with a positioning block 13. There are multiple positioning blocks 13. The multiple positioning blocks 13 are located inside multiple positioning grooves 3. The outer wall of the positioning block 13 has a locking groove 14. One end of the locking plate 9 extends into the interior of the locking groove 14. The locking groove 14 is triangular. The end of the locking plate 9 in the locking groove 14 is inclined. The filter element 15 is provided between the front pressure plate 1 and the rear pressure plate 12. The filter element 15 has a through groove inside. The multiple positioning blocks 13 pass through the multiple through grooves. The filter element 15 is made of glass fiber material.

[0036] When installing the filter element 15, first place the filter element 15 between the front pressure plate 1 and the rear pressure plate 12. Multiple positioning blocks 13 on the rear pressure plate 12 are inserted into the positioning grooves 3 of the front pressure plate 1 and pass through the filter element 15 through the through groove. Then, rotate the knob on the lead screw 5 to drive the adjusting plate 6 to move along the lead screw 5 towards the center position of the outer frame 16. The linkage column 8 of the adjusting plate 6 slides in the linkage groove 11, pushing the linkage block 10 and the locking plate 9 to move towards the positioning block 13. The inclined end of the locking plate 9 enters the triangular locking groove 14 of the positioning block 13, realizing the tight fixation of the front pressure plate 1 and the rear pressure plate 12, thereby clamping the filter element 15. This process can quickly complete the installation and removal of the filter element 15 without tools, which is simple to operate and ensures the stability and sealing of the filter element 15, thus improving the filtration efficiency.

[0037] The front pressure plate 1 and the rear pressure plate 12 are provided with an outer frame 16. The inner wall of the outer frame 16 is provided with a slot 17 and the inner wall of the slot 17 is provided with a groove 18. The two outer walls of the front pressure plate 1 are fixedly connected with buckles 19. The buckles 19 are U-shaped and the outer wall of the buckles 19 is provided with a triangular block 20. The triangular block 20 is located inside the groove 18.

[0038] The assembled front pressure plate 1 and rear pressure plate 12 are inserted into the outer frame 16. The buckles 19 on both sides of the front pressure plate 1 are aligned with the slots 17 of the outer frame 16, and the triangular blocks 20 are embedded in the grooves 18. Through the cooperation of the buckles 19 and the slots 17, and the locking of the triangular blocks 20 and the grooves 18, a firm connection is achieved between the front pressure plate 1 and the outer frame 16. The outer frame 16 is reusable, and only the filter element 15 needs to be replaced, reducing the cost of use. The snap-on design simplifies the installation steps and facilitates daily maintenance and replacement of the filter element 15 for users.

[0039] Working principle: When installing the filter element 15, first place the filter element 15 between the front pressure plate 1 and the rear pressure plate 12. Multiple positioning blocks 13 on the rear pressure plate 12 are inserted into the positioning grooves 3 of the front pressure plate 1 and pass through the filter element 15 through the through groove. Then, rotate the knob on the screw 5 to drive the adjusting plate 6 to move along the screw 5 towards the center position of the outer frame 16. The linkage column 8 of the adjusting plate 6 slides in the linkage groove 11, pushing the linkage block 10 and the locking plate 9 to move towards the positioning block 13. The inclined end of the locking plate 9 enters the triangular locking groove 14 of the positioning block 13, realizing the tight fixation of the front pressure plate 1 and the rear pressure plate 12, thereby clamping the filter element 15. Insert the assembled front pressure plate 1 and the rear pressure plate 12 into the outer frame 16 as a whole. The buckles 19 on both sides of the front pressure plate 1 are aligned with the slots 17 of the outer frame 16, and the triangular block 20 is embedded in the groove 18. The front pressure plate 1 and the outer frame 16 are firmly connected by the cooperation of the buckle 19 and the slot 17, and the locking of the triangular block 20 and the groove 18. The outer frame 16 can be reused, and only the filter element 15 needs to be replaced.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 comprising a front pressure plate (1), characterized in that: The front pressure plate (1) has an adjustment groove (2) inside, and there are two adjustment grooves (2). The front pressure plate (1) also has a positioning groove (3) inside, and there are multiple positioning grooves (3). The positioning groove (3) is connected to the adjustment groove (2) through a connecting groove (4). A lead screw (5) is movably connected to the inner wall of the adjustment groove (2). An adjustment plate (6) is threadedly connected to the outer wall of the lead screw (5). Hollow grooves (7) are opened at both ends of the adjustment plate (6). A linkage column (8) is fixedly connected to the inner wall of the hollow groove (7). A locking plate (9) is provided inside the connecting groove (4). The locking plate (9) is located inside the adjustment groove (2). One end of the front pressure plate (1) is fixedly connected to a linkage block (10), and the linkage block (10) has a linkage groove (11) inside. The linkage column (8) passes through the linkage groove (11). The rear end of the front pressure plate (1) is provided with a rear pressure plate (12). The outer wall of the rear pressure plate (12) is fixedly connected to a positioning block (13), and there are multiple positioning blocks (13). The multiple positioning blocks (13) are located inside the multiple positioning grooves (3). The outer wall of the positioning block (13) is provided with a locking groove (14). One end of the locking plate (9) extends into the locking groove (14). A filter element (15) is provided between the front pressure plate (1) and the rear pressure plate (12).

2. An air filter according to claim 1, wherein: The linkage block (10) is located inside the hollow groove (7), the locking plate (9) is located at the end of the locking groove (14) and is inclined, and the locking groove (14) is triangular.

3. An air filter according to claim 1, wherein: The front pressure plate (1) and the rear pressure plate (12) are provided with an outer frame (16). The inner wall of the outer frame (16) is provided with a slot (17). The inner wall of the slot (17) is provided with a groove (18). The outer walls on both sides of the front pressure plate (1) are fixedly connected with buckles (19). The outer wall of the buckle (19) is provided with a triangular block (20). The triangular block (20) is located inside the groove (18).

4. An air filter according to claim 1, wherein: One end of the lead screw (5) extends to the outside of the front pressure plate (1) and is fixedly connected to a knob, the outer wall of which is provided with anti-slip texture.

5. An air filter according to claim 1, wherein: The filter element (15) has a through groove inside, and the multiple positioning blocks (13) pass through the multiple through grooves respectively.

6. An air filter according to claim 3, wherein: The adjusting plate (6) is I-shaped, and the buckle (19) is U-shaped.

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