A non-partitioned air filter having folded filter paper

Abstract

The utility model discloses a kind of without baffle air filter with folding filter paper, including work plate, the side of the work plate is provided with back cover, the one end of the back cover is provided with fan, the other side of the work plate is provided with cover, the inside of the cover is provided with double-layer filter screen, the inside of the work plate is evenly provided with filter core, the upper and lower ends of the filter core are provided with locating plate, the one end of the locating plate is provided with locating rod, the both ends of the locating rod are provided with locating block, the inside of the locating block is provided with first spring, the one end of the first spring is provided with locating ball, the locating plate and work plate are slidably connected by locating groove, the inner surface of the upper and lower sides of the cover is provided with connecting plate, the connecting plate is connected with work plate by square groove, the inside of the connecting plate is provided with connecting groove. The utility model is convenient for disassembling and assembling device, and is conducive to cleaning and replacing filter element.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to a pleated air filter without separators. Background Technology

[0002] Air filters are air filtration devices, generally used in clean workshops, clean factories, laboratories and clean rooms, or for dust prevention of electronic, mechanical and communication equipment, etc. There are five types: pre-filters, medium-efficiency filters, high-medium efficiency filters, sub-high efficiency filters and high-efficiency filters.

[0003] However, existing pleated filterless air filters with folded filter paper are inconvenient for disassembling and assembling the device, as well as for cleaning and replacing the internal filter elements; therefore, they do not meet current requirements. In response, we propose a pleated filterless air filter with folded filter paper. Utility Model Content

[0004] The purpose of this utility model is to provide a pleated filter paper air filter without separators, so as to solve the problems mentioned in the background art, such as the inconvenience of disassembling and assembling the device, and the inconvenience of cleaning and replacing the internal filter elements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pleated air filter without separators, comprising a working plate, a rear cover plate on one side of the working plate, a fan at one end of the rear cover plate, a cover plate on the other side of the working plate, a double-layer filter screen on the inner side of the cover plate, filter elements evenly arranged on the inner side of the working plate, positioning plates at the upper and lower ends of the filter elements, a positioning rod at one end of the positioning plate, positioning blocks at both ends of the positioning rod, and a first positioning block on the inner side of the positioning block. A spring is provided, with a positioning ball at one end of the first spring. The positioning plate and the working plate are slidably connected through a positioning groove. Connecting plates are provided on the inner surfaces of both the upper and lower sides of the cover plate. The connecting plates are connected to the working plate through a square groove. A connecting groove is provided on the inner side of the connecting plate. A second spring is provided on the inner side of the connecting groove. A locking block is provided at one end of the second spring. An L-shaped connecting plate is provided on the inner side of the working plate above the locking block. A pressing plate is provided at the upper end of the L-shaped connecting plate. A third spring is provided between the L-shaped connecting plate and the working plate.

[0006] Preferably, the working plate located above the card block is provided with a limiting groove, and the limiting groove corresponds to the card block.

[0007] Preferably, an inclined plate is provided in the connecting groove, and the second spring is fixed to the inclined plate by welding.

[0008] Preferably, one end of the connecting plate is completely fitted to the outer surface of the cover plate, and the connecting plate and the cover plate are fixed by screws.

[0009] Preferably, the outer side of the fan is completely fitted to one end of the rear cover plate, and the fan and the rear cover plate are fixed with screws.

[0010] Preferably, the upper end of the third spring is completely in contact with the lower surface of the L-shaped connecting plate, and the third spring and the L-shaped connecting plate are fixed by welding.

[0011] Preferably, the lower surface of the pressing plate is fully fitted with the upper end of the L-shaped connecting plate, and the pressing plate and the L-shaped connecting plate are fixed by screws.

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

[0013] 1. This utility model has a filter element set on the inner side of the working plate. The positioning plates set at the upper and lower ends of the filter element and the positioning rod set at one end of the positioning plate can reduce the displacement of the filter element and improve the filtration effect of the filter element. The positioning blocks and the first spring set at both ends of the positioning plate, and the elasticity of the spring and the positioning ball, make the two ends of the positioning rod engage with the positioning ball, which makes it convenient to remove the filter element after the work is completed and facilitates the cleaning of the filter element by the staff.

[0014] 2. This utility model has a cover plate on one side of the working plate. Through the connecting plates at both ends of the cover plate, and using the locking block and the second spring set on the inner side of the connecting plate, after the connecting plate is inserted into the square groove, the locking block is engaged with the inner wall of the square groove. After the device finishes working, through the L-shaped connecting plate and the third spring set above the locking block, the elasticity of the spring is used to press the L-shaped connecting plate, so that the L-shaped connecting plate presses the locking block, and the locking block is separated from the working plate. This makes it convenient to disassemble and assemble the cover plate, which is conducive to cleaning and replacing the filter screen on the inner side of the cover plate, and improves the convenience of using the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the working board of this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is an enlarged schematic diagram of structure A of this utility model;

[0019] Figure 5 This is an enlarged schematic diagram of structure B of this utility model.

[0020] In the diagram: 1. Working plate; 2. Cover plate; 3. Double-layer filter screen; 4. Rear cover plate; 5. Pressing plate; 6. Filter element; 7. Square groove; 8. Positioning rod; 9. Positioning plate; 10. Fan; 11. Positioning block; 12. First spring; 13. Positioning ball; 14. L-shaped connecting plate; 15. Locking block; 16. Connecting plate; 17. Connecting groove; 18. Second spring; 19. Third spring; 20. Positioning groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 This utility model provides an embodiment of a non-segmented air filter with folded filter paper, comprising a working plate 1, a rear cover plate 4 on one side of the working plate 1, a fan 10 at one end of the rear cover plate 4, a cover plate 2 on the other side of the working plate 1, a double-layer filter screen 3 on the inner side of the cover plate 2, filter elements 6 evenly arranged on the inner side of the working plate 1, positioning plates 9 at the upper and lower ends of the filter elements 6, a positioning rod 8 at one end of the positioning plate 9, positioning blocks 11 at both ends of the positioning rod 8, and a first spring 12 on the inner side of the positioning block 11. The end is provided with positioning ball bearing 13. The positioning plate 9 and the working plate 1 are slidably connected through the positioning groove 20. The inner surfaces of the upper and lower sides of the cover plate 2 are provided with connecting plates 16. The connecting plates 16 and the working plate 1 are connected through square grooves 7. The inner side of the connecting plate 16 is provided with a connecting groove 17. The inner side of the connecting groove 17 is provided with a second spring 18. One end of the second spring 18 is provided with a locking block 15. The inner side of the working plate 1 above the locking block 15 is provided with an L-shaped connecting plate 14. The upper end of the L-shaped connecting plate 14 is provided with a pressing plate 5. A third spring 19 is provided between the L-shaped connecting plate 14 and the working plate 1.

[0023] Furthermore, the working plate 1 located above the card block 15 is provided with a limiting groove, and the limiting groove corresponds to the card block 15.

[0024] By adopting the above technical solution, the interlocking effect between the card block 15 and the working plate 1 is increased, and the installation effect of the cover plate 2 is improved.

[0025] Furthermore, an inclined plate is provided inside the connecting groove 17, and the second spring 18 is fixed to the inclined plate by welding.

[0026] By adopting the above technical solution, the robustness of the second spring 18 connection is increased, and the stability of the second spring 18 operation is improved.

[0027] Furthermore, one end of the connecting plate 16 is completely fitted to the outer surface of the cover plate 2, and the connecting plate 16 and the cover plate 2 are fixed by screws.

[0028] By adopting the above technical solution, the connection strength of the connecting plate 16 is increased, and the working strength of the connecting plate 16 is improved.

[0029] Furthermore, the outer side of the fan 10 is completely fitted with one end of the rear cover plate 4, and the fan 10 and the rear cover plate 4 are fixed with screws.

[0030] By adopting the above technical solution, the robustness of the connection of the fan 10 is increased, and the stability of the operation of the fan 10 is improved.

[0031] Furthermore, the upper end of the third spring 19 is completely attached to the lower surface of the L-shaped connecting plate 14, and the third spring 19 and the L-shaped connecting plate 14 are fixed by welding.

[0032] By adopting the above technical solution, the robustness of the third spring connection is increased, and the stability of the L-shaped connecting plate 14 adjustment is provided.

[0033] Furthermore, the lower surface of the pressing plate 5 is completely fitted with the upper end of the L-shaped connecting plate 14, and the pressing plate 5 and the L-shaped connecting plate 14 are fixed by screws.

[0034] By adopting the above technical solution, the firmness of the connection of the pressing plate 5 is increased, and the working strength of the pressing plate 5 is improved.

[0035] In use, a filter element 6 is installed on the inner side of the working plate 1. Positioning plates 9 are installed at both ends of the filter element 6, and a positioning rod 8 is installed at one end of the positioning plates 9. The positioning plates 9 reduce the displacement of the filter element 6, improving its filtration efficiency. Positioning blocks 11 and a first spring 12 are installed at both ends of the positioning plates 9. The spring's elasticity and positioning balls 13 engage the positioning rod 8 with the positioning balls 13, facilitating the removal of the filter element 6 after work and aiding in cleaning. A cover plate 2 is installed on one side of the working plate 1. The connecting plates 16 at both ends utilize the locking blocks 15 and the second spring 18 located on the inner side of the connecting plates 16. After the connecting plates 16 are inserted into the square groove 7, the locking blocks 15 engage with the inner wall of the square groove 7. After the device finishes working, the L-shaped connecting plate 14 located above the locking blocks 15 and the third spring 19 are used to press the L-shaped connecting plate 14, causing the L-shaped connecting plate 14 to press the locking blocks 15, thus separating the locking blocks 15 from the working plate 1. This facilitates the disassembly and assembly of the cover plate 2, and makes it easier to clean and replace the filter screen inside the cover plate 2, improving the ease of use of the device.

[0036] 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.

Claims

1. A pleated air filter with folded filter paper, comprising a working plate (1), characterized in that: A rear cover plate (4) is provided on one side of the working plate (1), and a fan (10) is provided at one end of the rear cover plate (4). A cover plate (2) is provided on the other side of the working plate (1). A double-layer filter screen (3) is provided on the inner side of the cover plate (2). Filter elements (6) are evenly arranged on the inner side of the working plate (1). Positioning plates (9) are provided at the upper and lower ends of the filter elements (6). A positioning rod (8) is provided at one end of the positioning plate (9). Positioning blocks (11) are provided at both ends of the positioning rod (8). A first spring (12) is provided on the inner side of the positioning block (11). A positioning ball (13) is provided at one end of the first spring (12). The positioning plate (9) and the working plate (1) are connected. The plate (1) is slidably connected by the positioning groove (20). The inner surfaces of the upper and lower sides of the cover plate (2) are provided with connecting plates (16). The connecting plates (16) are connected to the working plate (1) by the square groove (7). The inner side of the connecting plate (16) is provided with a connecting groove (17). The inner side of the connecting groove (17) is provided with a second spring (18). One end of the second spring (18) is provided with a locking block (15). The inner side of the working plate (1) above the locking block (15) is provided with an L-shaped connecting plate (14). The upper end of the L-shaped connecting plate (14) is provided with a pressing plate (5). A third spring (19) is provided between the L-shaped connecting plate (14) and the working plate (1).

2. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: The working plate (1) located above the card block (15) is provided with a limit groove, and the limit groove corresponds to the card block (15).

3. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: An inclined plate is provided in the connecting groove (17), and the second spring (18) is fixed to the inclined plate by welding.

4. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: One end of the connecting plate (16) is completely attached to the outer surface of the cover plate (2), and the connecting plate (16) and the cover plate (2) are fixed by screws.

5. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: The outer side of the fan (10) is completely fitted with one end of the rear cover plate (4), and the fan (10) and the rear cover plate (4) are fixed by screws.

6. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: The upper end of the third spring (19) is completely attached to the lower surface of the L-shaped connecting plate (14), and the third spring (19) and the L-shaped connecting plate (14) are fixed by welding.

7. A pleated filterless air filter with folded filter paper according to claim 1, characterized in that: The lower surface of the pressing plate (5) is completely attached to the upper end of the L-shaped connecting plate (14), and the pressing plate (5) and the L-shaped connecting plate (14) are fixed by screws.

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