Reusable filter

Abstract

This utility model discloses a reusable filter, relating to the field of filter technology. The reusable filter includes filter paper, with a frame assembly surrounding the filter paper. Multiple L-shaped corner brackets are provided at the corners of the frame assembly. The frame assembly includes an L-shaped frame and a flange frame, with the flange frame located at the upper end of the L-shaped frame. Multiple L-shaped frames and flange frames are provided. A connecting seat is provided at the upper end of the L-shaped frame, and a self-locking slot is provided on the upper surface of the connecting seat. The upper surface and both ends of the self-locking slot are open. This solution solves the problem that existing filters typically use an integral structure, with the aluminum frame and filter element fixedly connected. When the filter element reaches the end of its service life and needs replacement, the entire filter must be disassembled, which is cumbersome and time-consuming. Furthermore, the integral structure prevents the aluminum frame from being reused, increasing usage costs and wasting resources.

Description

Technical Field

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

[0002] In many industrial and civil fields, filters are widely used for the purification of media such as air and liquids;

[0003] For example, the Chinese authorized patent (plate filter) with announcement number CN211536969U includes a fixed frame, which includes a fixed rod. Side rods are fixedly installed on both sides of the bottom of the fixed rod, and corresponding grooves are formed on the side rods. A movable frame is installed inside the fixed frame, and the movable frame includes an installation rod. Slide rods are fixedly installed on both sides of the top of the installation rod, and a filter screen is installed between the slide rods. The top of the slide rod is located within the groove. A storage groove is formed at the bottom of the fixed rod corresponding to the slide rod, and a limiting hole is formed at the bottom of the side rod. Fixing holes are formed at both ends of the installation rod corresponding to the limiting holes. This design securely connects multiple plate filters together, increasing their stability during use and ensuring their filtration effect. Furthermore, when excessive dust accumulates on the filter screen, the movable frame can be directly pulled out for easy cleaning and maintenance of the filter screen, making it convenient, quick, and reducing labor time while improving work efficiency.

[0004] However, existing filters typically employ an integral structure, with the aluminum frame and filter element fixedly connected. When the filter element reaches the end of its service life and needs to be replaced, the entire filter must be disassembled, which is cumbersome and time-consuming. Furthermore, the integral structure means that the aluminum frame cannot be reused, increasing usage costs and wasting resources. Therefore, it does not meet the current needs. To address this, we propose a reusable filter. Utility Model Content

[0005] The purpose of this utility model is to provide a reusable filter to solve the problems mentioned in the background art. Existing filters usually adopt an integral structure, with the aluminum frame and filter element fixedly connected. When the filter element reaches the end of its service life and needs to be replaced, the entire filter must be disassembled, which is cumbersome and time-consuming. In addition, the integral structure makes the aluminum frame non-reusable, which increases the cost of use and wastes resources.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reusable filter, comprising: filter paper, wherein a frame assembly is provided on the outside of the filter paper, and L-shaped corner brackets are provided at the corners of the frame assembly, and multiple L-shaped corner brackets are provided; the frame assembly includes an L-shaped frame and a flange frame, wherein the flange frame is located at the upper end of the L-shaped frame, and multiple L-shaped frames and flange frames are provided.

[0007] Preferably, the upper end of the L-shaped frame is provided with a connecting seat, the upper surface of the connecting seat is provided with a self-locking slot, and the upper surface and both ends of the self-locking slot are open.

[0008] Preferably, the flange frame includes a pressure plate and a self-locking seat, and the self-locking seat is located on the lower surface of one end of the pressure plate and is inserted into the self-locking slot.

[0009] Preferably, the two sides of the self-locking seat protrude outward in an arc shape, and the inner walls of the two sides of the self-locking slot are recessed inward in an arc shape.

[0010] Preferably, the lower end of the L-shaped frame is provided with a supporting base plate, and corner code grooves and pressure frame grooves are respectively provided on both sides of the connection between the supporting base plate and the connecting seat and the L-shaped frame, and the L-shaped corner code slides along the corner code groove.

[0011] Preferably, the upper end of the filter paper is provided with an upper pressure frame, and the lower end of the filter paper is provided with a lower pressure frame. The upper pressure frame and the lower pressure frame squeeze and fix the filter paper, and the two ends of the upper pressure frame and the lower pressure frame are respectively inserted into the pressure frame grooves in the corresponding directions of the connecting seat and the supporting base plate.

[0012] Preferably, both ends of the L-shaped corner bracket are provided with rivets, and the L-shaped corner bracket is fixed to the L-shaped frame by the rivets.

[0013] Preferably, the upper and lower pressure frames are installed in opposite directions, the filter paper is wavy, and the upper and lower pressure frames are locked in the wavy position.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This utility model sets a flange frame at the upper end of the L-shaped frame. When installing the flange frame, the self-locking seat is inserted into the self-locking slot. Since the two sides of the self-locking seat protrude outward and are arc-shaped, and the inner walls of the two sides of the self-locking slot are concave inward and are arc-shaped, the self-locking is formed by elastic deformation when inserted. Due to the effect of the self-locking structure, the flange frame and the L-shaped frame are tightly combined to form a complete frame assembly, which fixes the filter paper in it. When the filter paper needs to be replaced, only a certain external force is applied to release the self-locking structure. The filter paper can be quickly replaced by releasing the self-locking structure. The frame assembly can be reused, which reduces resource waste and lowers the cost of using the filter. The split frame assembly and self-locking structure make the filter paper replacement process simple and quick, without complicated disassembly and installation steps, which greatly shortens the replacement time and improves work efficiency. It solves the problem that the existing filters usually adopt an integral structure, with the aluminum frame and filter element fixedly connected. When the filter element reaches the end of its service life and needs to be replaced, the entire filter must be disassembled, which is cumbersome and time-consuming. In addition, the integral structure makes the aluminum frame unusable, which increases the cost of use and wastes resources.

[0016] (2) By setting corner code grooves and pressure frame grooves on both sides of the connection between the support base plate and the connecting seat and the L-shaped frame, the L-shaped corner code slides along the corner code grooves, and the two ends of the upper pressure frame and the lower pressure frame are respectively inserted into the pressure frame grooves in the corresponding directions of the connecting seat and the support base plate, which can support and limit the L-shaped corner code, the upper pressure frame and the lower pressure frame, prevent slippage and improve stability and safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the frame component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the L-shaped frame and flange frame of this utility model;

[0021] In the diagram: 1. Filter paper; 2. Frame assembly; 3. L-shaped corner bracket; 4. Upper pressure frame; 5. Lower pressure frame; 6. Rivet; 7. L-shaped frame; 8. Flange frame; 9. Pressure plate; 10. Self-locking seat; 11. Connecting seat; 12. Self-locking slot; 13. Corner bracket slide groove; 14. Pressure frame slide groove; 15. Support base plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 The present invention provides an embodiment of a reusable filter, comprising: filter paper 1, a frame assembly 2 provided on the outside of the filter paper 1, L-shaped corner brackets 3 provided at each corner of the frame assembly 2, and multiple L-shaped corner brackets 3 provided; the frame assembly 2 includes an L-shaped frame 7 and a flange frame 8, with the flange frame 8 located at the upper end of the L-shaped frame 7, and multiple L-shaped frames 7 and flange frames 8 provided; an upper pressure frame 4 provided at the upper end of the filter paper 1, and a lower pressure frame 5 provided at the lower end of the filter paper 1; the upper pressure frame 4 and the lower pressure frame 5 press and fix the filter paper 1; the installation directions of the upper pressure frame 4 and the lower pressure frame 5 are reversed; the filter paper 1 is wavy; and the upper pressure frame 4 and the lower pressure frame 5 are locked in the wavy position.

[0024] Place the filter paper 1 between the upper pressure frame 4 and the lower pressure frame 5, and press and fix the filter paper 1 by the upper pressure frame 4 and the lower pressure frame 5;

[0025] The upper end of the L-shaped frame 7 is provided with a connecting seat 11, and the upper surface of the connecting seat 11 is provided with a self-locking slot 12. The upper surface and both ends of the self-locking slot 12 are open. The flange frame 8 includes a pressure plate 9 and a self-locking seat 10. The self-locking seat 10 is located on the lower surface of one end of the pressure plate 9 and is inserted into the self-locking slot 12. The two sides of the self-locking seat 10 protrude outward in an arc shape, and the inner walls of the two sides of the self-locking slot 12 are recessed inward in an arc shape. The lower end of the frame 7 is provided with a support base plate 15. The support base plate 15 and the connecting seat 11 are respectively provided with corner code sliding groove 13 and pressing frame sliding groove 14 on both sides of the connection between the L-shaped frame 7 and the L-shaped corner code 3. The L-shaped corner code 3 slides along the corner code sliding groove 13. The two ends of the upper pressing frame 4 and the lower pressing frame 5 are respectively inserted into the pressing frame sliding groove 14 in the corresponding direction of the connecting seat 11 and the support base plate 15. Both ends of the L-shaped corner code 3 are provided with rivets 6, and the L-shaped corner code 3 is fixed to the L-shaped frame 7 by the rivets 6.

[0026] The two ends of the upper pressure frame 4 and the lower pressure frame 5 are respectively inserted into the pressure frame grooves 14 in the corresponding directions of the connecting seat 11 and the supporting base plate 15 to provide support and limit the movement, preventing loosening. Then, multiple L-shaped frames 7 are wrapped around the frame, and the connection is made by L-shaped corner brackets 3. The L-shaped corner brackets 3 slide along the corner bracket grooves 13 to limit the movement of the L-shaped corner brackets 3, preventing them from slipping and loosening, thus improving safety and stability. Finally, the L-shaped corner brackets 3 are fixed to the L-shaped frames 7 by rivets 6, thereby achieving overall fixation.

[0027] Then install the flange frame 8. During installation, insert the self-locking seat 10 into the self-locking slot 12. Since the two sides of the self-locking seat 10 protrude outward and are arc-shaped, and the two sides of the inner wall of the self-locking slot 12 are concave inward and are arc-shaped, self-locking is formed through elastic deformation when inserted. Due to the effect of the self-locking structure, the flange frame 8 and the L-shaped frame 7 are tightly combined to form a complete frame assembly 2, which fixes the filter paper 1 in it.

[0028] When filter paper 1 needs to be replaced, simply apply a certain amount of external force to release the self-locking structure, remove the upper pressure frame 4 and lower pressure frame 5 with the old filter paper 1 from the L-shaped frame 7, then replace it with new filter paper 1, and re-fix it in the same way to complete the filter element replacement. The release of the self-locking structure enables quick replacement of filter paper 1, and the frame assembly 2 is reusable, reducing resource waste and lowering the cost of using the filter. Furthermore, the split frame assembly 2 and the self-locking structure make the filter paper 1 replacement process simple and quick, without complicated disassembly and installation steps, greatly shortening the replacement time and improving work efficiency.

[0029] Working principle: When in use, place the filter paper 1 between the upper pressure frame 4 and the lower pressure frame 5, and press and fix the filter paper 1 by the upper pressure frame 4 and the lower pressure frame 5;

[0030] Then, the two ends of the upper pressure frame 4 and the lower pressure frame 5 are respectively inserted into the pressure frame groove 14 in the corresponding direction of the connecting seat 11 and the supporting base plate 15, which plays a supporting and limiting role and prevents loosening. Then, multiple L-shaped frames 7 are surrounded, and the connection is connected by L-shaped corner brackets 3. The L-shaped corner brackets 3 slide along the corner bracket groove 13, which plays a limiting role and prevents slippage and loosening, thereby improving safety and stability. Finally, the L-shaped corner brackets 3 and L-shaped frames 7 are fixed by rivets 6, thereby achieving overall fixation.

[0031] Then install the flange frame 8. During installation, insert the self-locking seat 10 into the self-locking slot 12. Since the two sides of the self-locking seat 10 protrude outward and are arc-shaped, and the two sides of the inner wall of the self-locking slot 12 are concave inward and are arc-shaped, self-locking is formed through elastic deformation when inserted. Due to the effect of the self-locking structure, the flange frame 8 and the L-shaped frame 7 are tightly combined to form a complete frame assembly 2, which fixes the filter paper 1 in it.

[0032] When filter paper 1 needs to be replaced, simply apply a certain amount of external force to release the self-locking structure, remove the upper pressure frame 4 and lower pressure frame 5 with the old filter paper 1 from the L-shaped frame 7, then replace it with new filter paper 1, and re-fix it in the same way to complete the filter element replacement. The release of the self-locking structure enables quick replacement of filter paper 1, and the frame assembly 2 is reusable, reducing resource waste and lowering the cost of using the filter. Furthermore, the split frame assembly 2 and the self-locking structure make the filter paper 1 replacement process simple and quick, without complicated disassembly and installation steps, greatly shortening the replacement time and improving work efficiency.

[0033] 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 reusable filter, comprising filter paper (1), characterized in that: The filter paper (1) is provided with a frame assembly (2) on its outside. Each corner of the frame assembly (2) is provided with an L-shaped corner bracket (3), and there are multiple L-shaped corner brackets (3). The frame assembly (2) includes an L-shaped frame (7) and a flange frame (8), and the flange frame (8) is located at the upper end of the L-shaped frame (7). There are multiple L-shaped frames (7) and flange frames (8).

2. A reusable filter according to claim 1, characterized in that: The upper end of the L-shaped frame (7) is provided with a connecting seat (11), and the upper surface of the connecting seat (11) is provided with a self-locking slot (12), and the upper surface and both ends of the self-locking slot (12) are open.

3. A reusable filter according to claim 2, characterized in that: The flange frame (8) includes a pressure plate (9) and a self-locking seat (10), and the self-locking seat (10) is located on the lower surface of one end of the pressure plate (9), and the self-locking seat (10) is inserted into the self-locking slot (12).

4. A reusable filter according to claim 3, characterized in that: The two sides of the self-locking seat (10) protrude outward in an arc shape, and the two sides of the self-locking slot (12) are recessed in an arc shape.

5. A reusable filter according to claim 2, characterized in that: The lower end of the L-shaped frame (7) is provided with a support base plate (15). The support base plate (15) and the connecting seat (11) are respectively provided with corner code groove (13) and pressure frame groove (14) on both sides of the connection between the L-shaped frame (7) and the L-shaped corner code (3). The L-shaped corner code (3) slides along the corner code groove (13).

6. A reusable filter according to claim 5, characterized in that: The filter paper (1) is provided with an upper pressure frame (4) at its upper end and a lower pressure frame (5) at its lower end. The upper pressure frame (4) and the lower pressure frame (5) press and fix the filter paper (1). The two ends of the upper pressure frame (4) and the lower pressure frame (5) are respectively inserted into the pressure frame groove (14) in the corresponding direction of the connecting seat (11) and the supporting base plate (15).

7. A reusable filter according to claim 1, characterized in that: Both ends of the L-shaped corner bracket (3) are provided with rivets (6), and the L-shaped corner bracket (3) is fixed to the L-shaped frame (7) by the rivets (6).

8. A reusable filter according to claim 6, characterized in that: The upper pressure frame (4) and the lower pressure frame (5) are installed in opposite directions, and the filter paper (1) is wavy, with the upper pressure frame (4) and the lower pressure frame (5) locked in the wavy position.

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