Filter with replaceable filter screen

Abstract

The utility model discloses a filter with a replaceable filter screen, and relates to the technical field of filters. The inner side of the filter cartridge is movably provided with a flexible filter plate, the outer side of the filter cartridge is fixedly provided with a fixed frame, the outer side of the fixed frame is slidably inserted with symmetrically distributed insertion shafts, one end of each insertion shaft slidably penetrates through the filter cartridge and is inserted into the inner side of the flexible filter plate, and one end of each insertion shaft is fixedly connected with a connecting disc; a first spring is fixedly mounted at one end of each connecting disc; a bolt is manually detached and taken down, then a rotating shaft is rotated, the rotating shaft rotates to drive a cam to rotate, the cam rotates to push two synchronizing shafts to slide at the same time, the synchronizing shafts slide to drive a vertical plate to move, the vertical plate then drives a connecting disc and an inserting shaft to move, the inserting shaft is pulled away from a flexible filter plate, and a first spring is in a stretching state; the structure is ingenious, the flexible filter plate is more convenient to assemble, disassemble and replace, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter with a replaceable filter screen. Background Technology

[0002] Filters are an indispensable device in pipelines that transport media. They are usually installed at the inlet end of pressure reducing valves, pressure relief valves, level control valves, and other equipment.

[0003] Over time, filter screens can become clogged, affecting filtration efficiency and requiring disassembly and replacement. Current filter screen disassembly structures are mostly built-in, secured with multiple bolts and fasteners, making disassembly cumbersome, time-consuming, inconvenient, and impractical. To address these issues, the inventor proposes a filter with replaceable screens. Utility Model Content

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a filter with replaceable filter screen, comprising a filter cylinder, a flexible filter plate movably installed on the inner side of the filter cylinder, a fixed frame fixedly installed on the outer side of the filter cylinder, symmetrically distributed insertion shafts slidably inserted into the outer side of the fixed frame, one end of each insertion shaft slidingly penetrating the filter cylinder and inserted into the inner side of the flexible filter plate, a connecting plate fixedly connected to one end of each insertion shaft, a first spring fixedly installed on one end of each connecting plate, one end of the first spring fixedly connected to the fixed frame, a vertical plate fixedly connected to opposite ends of each connecting plate, a synchronous shaft fixedly connected to one end of each vertical plate, one end of each synchronous shaft slidably inserted into the inner side of the fixed frame, a rotating shaft rotatably installed on the inner side of the fixed frame, a cam fixedly connected to the top end of the rotating shaft, and bolts threadedly installed on the middle of the outer side of each vertical plate, one end of each bolt threadedly connected to the fixed frame.

[0005] Preferably, symmetrically distributed L-shaped plates are fixedly installed on the inner side of the filter cylinder, and symmetrically distributed square grooves are opened at one end of the flexible filter plate. One end of the L-shaped plate slides through the square groove, and a damper is fixedly installed at one end of each L-shaped plate. A stop plate is fixedly installed at one end of each damper, and a second spring is fixedly installed on the outer side of each damper. One end of the second spring is fixedly connected to the stop plate, and one end of the stop plate is movably abutting against the flexible filter plate.

[0006] Preferably, both ends of the filter cartridge are fixedly installed with threaded tubes.

[0007] Preferably, a cross block is fixedly connected to the bottom end of the rotating shaft.

[0008] Preferably, a T-shaped block is fixedly connected to one end of each bolt.

[0009] Preferably, a water pressure sensor is fixedly installed on the upper inner side of the filter cartridge.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Manually remove the bolts and then rotate the shaft. The rotation of the shaft drives the cam to rotate, and the rotation of the cam simultaneously pushes the two synchronous shafts to slide. The sliding of the synchronous shafts drives the vertical plate to move, and the vertical plate then drives the connecting plate and the insert shaft to move. The insert shaft is pulled away from the flexible filter plate, and the first spring is in a stretched state. At this time, it is easy to remove the flexible filter plate for replacement. The structure is ingenious, and the installation, removal and replacement of the flexible filter plate is more convenient, improving its practicality.

[0012] 2. By setting an L-shaped plate to position the flexible filter plate, when the flexible filter plate moves flexibly under pressure during filtration, the damper and the second spring work together to help the flexible filter plate absorb shock and buffer, effectively preventing the flexible filter plate from being damaged by pressure and effectively improving the service life of the flexible filter plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model.

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the damper of this utility model.

[0017] In the diagram: 1. Filter cylinder; 11. Flexible filter plate; 12. Fixed frame; 13. Insert shaft; 14. Connecting plate; 15. First spring; 16. Vertical plate; 17. Synchronous shaft; 18. Rotating shaft; 19. Cam; 20. Bolt; 21. L-shaped plate; 22. Square groove; 23. Damper; 24. Support plate; 25. Second spring; 26. Screw connecting pipe; 27. Cross block; 28. T-shaped block; 29. ​​Water pressure sensor. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-3 As shown, this utility model provides a technical solution: a filter with replaceable filter screen, including a filter cylinder 1, a flexible filter plate 11 movably installed on the inner side of the filter cylinder 1, a fixed frame 12 fixedly installed on the outer side of the filter cylinder 1, and symmetrically distributed insertion shafts 13 slidably inserted into the outer side of the fixed frame 12. One end of the insertion shaft 13 slides through the filter cylinder 1 and is inserted into the inner side of the flexible filter plate 11. A connecting plate 14 is fixedly connected to one end of each insertion shaft 13, and a first spring 15 is fixedly installed on one end of each connecting plate 14. One end of the first spring 15 is fixedly connected to the fixed frame 12. A vertical plate 16 is fixedly connected to the opposite end of each connecting plate 14. A synchronous shaft 17 is fixedly connected to one end of each vertical plate 16. One end of the synchronous shaft 17 is slidably inserted into the inner side of the fixed frame 12. A rotating shaft 18 is rotatably installed on the inner side of the fixed frame 12. A cam 19 is fixedly connected to the top end of the rotating shaft 18. Bolts 20 are threadedly installed on the middle of the outer side of each vertical plate 16, and one end of the bolt 20 is threadedly connected to the fixed frame 12.

[0020] A symmetrically distributed L-shaped plate 21 is fixedly installed on the inner side of the filter cartridge 1. A symmetrically distributed square groove 22 is opened at one end of the flexible filter plate 11. One end of the L-shaped plate 21 slides through the square groove 22. A damper 23 is fixedly installed at one end of each L-shaped plate 21. A stop plate 24 is fixedly installed at one end of each damper 23. A second spring 25 is fixedly installed on the outer side of each damper 23. One end of the second spring 25 is fixedly connected to the stop plate 24. One end of the stop plate 24 is movably abutting against the flexible filter plate 11.

[0021] By adopting the above technical solution, the flexible filter plate 11 is positioned by setting the L-shaped plate 21. When the flexible filter plate 11 is subjected to pressure and undergoes flexible movement, the damper 23 and the second spring 25 help the flexible filter plate 11 to absorb shock and buffer, effectively preventing the flexible filter plate 11 from being damaged by pressure and effectively improving the service life of the flexible filter plate 11.

[0022] Both ends of the filter cartridge 1 are fixedly installed with threaded pipes 26.

[0023] By adopting the above technical solution, the connecting pipe 26 facilitates the connection between the filter cartridge 1 and the pipeline.

[0024] A cross block 27 is fixedly connected to the bottom end of the rotating shaft 18.

[0025] By adopting the above technical solution, the cross block 27 is set to facilitate the rotation of the shaft 18 to control the movement of the cam 19.

[0026] One end of each bolt 20 is fixedly connected to a T-shaped block 28.

[0027] By adopting the above technical solution, the T-shaped block 28 is set to facilitate the rotation of the adjusting bolt 20.

[0028] A water pressure sensor 29 is fixedly installed on the upper inner side of the filter cartridge 1.

[0029] By adopting the above technical solution, the water pressure sensor 29 is set up to facilitate the transmission of water pressure data to the display terminal.

[0030] Working principle: First, the flexible filter plate 11 is secured in the filter cylinder 1. The tension of the first spring 15 on the fixed frame 12 pulls the connecting plate 14, pushing the insertion shaft 13 to slide. The insertion shaft 13 passes through the filter cylinder 1 and inserts into the flexible filter plate 11. Then, the bolts 20 are installed to reinforce and fix the flexible filter plate 11. When it is necessary to disassemble and replace the flexible filter plate 11, the bolts 20 are manually removed to take it off. Then, the rotating shaft 18 is rotated, which drives the cam 19 to rotate. The rotation of the cam 19 simultaneously pushes the two synchronous shafts 17 to slide. The sliding of the synchronous shafts 17 drives the vertical plate 16 to move, and the vertical plate 16 then drives the connecting plate 14 to move. The receiving plate 14 and the insert shaft 13 move, and the insert shaft 13 is pulled away from the flexible filter plate 11. The first spring 15 is in a stretched state, which makes it easy to remove the flexible filter plate 11 for replacement. The structure is ingenious, and the installation, removal and replacement of the flexible filter plate 11 is more convenient, improving its practicality. The flexible filter plate 11 is positioned by the L-shaped plate 21, so that when the flexible filter plate 11 is subjected to pressure and undergoes flexible movement, the damper 23 and the second spring 25 help the flexible filter plate 11 to absorb shock and buffer, effectively preventing the flexible filter plate 11 from being damaged by pressure and effectively improving the service life of the flexible filter plate 11.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A filter with replaceable filter screen, comprising a filter cartridge (1), characterized in that: A flexible filter plate (11) is movably installed on the inner side of the filter cylinder (1), and a fixed frame (12) is fixedly installed on the outer side of the filter cylinder (1). Symmetrically distributed insertion shafts (13) are slidably inserted into the outer side of the fixed frame (12). One end of each insertion shaft (13) slides through the filter cylinder (1) and is inserted into the inner side of the flexible filter plate (11). A connecting plate (14) is fixedly connected to one end of each insertion shaft (13), and a first spring (15) is fixedly installed on one end of each connecting plate (14). One end of the first spring (15) is connected to the fixed frame (11). 2) Fixed connection: A vertical plate (16) is fixedly connected to one end of the connecting plate (14) on opposite sides. A synchronous shaft (17) is fixedly connected to one end of the vertical plate (16). One end of the synchronous shaft (17) is slidably inserted into the inner side of the fixed frame (12). A rotating shaft (18) is rotatably installed on the inner side of the fixed frame (12). A cam (19) is fixedly connected to the top of the rotating shaft (18). A bolt (20) is threadedly installed on the middle of the outer side of the vertical plate (16). One end of the bolt (20) is threadedly connected to the fixed frame (12).

2. A filter with replaceable screen as claimed in claim 1, characterized in that The filter cylinder (1) is fixedly installed with symmetrically distributed L-shaped plates (21). One end of the flexible filter plate (11) is provided with symmetrically distributed square grooves (22). One end of the L-shaped plate (21) slides through the square grooves (22). One end of each L-shaped plate (21) is fixedly installed with a damper (23). One end of each damper (23) is fixedly installed with a stop plate (24). The outside of each damper (23) is fixedly installed with a second spring (25). One end of the second spring (25) is fixedly connected to the stop plate (24). One end of the stop plate (24) is movably abutting against the flexible filter plate (11).

3. The filter of claim 1 wherein, Both ends of the filter cylinder (1) are fixedly installed with screw tubes (26).

4. The filter of claim 1 wherein, A cross block (27) is fixedly connected to the bottom end of the rotating shaft (18).

5. The filter of claim 1 wherein, One end of each bolt (20) is fixedly connected to a T-shaped block (28).

6. The filter of claim 1 wherein, A water pressure sensor (29) is fixedly installed on the upper inner side of the filter cartridge (1).

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