A high filtration accuracy edge covering filter screen
By designing a high-precision edge-sealed filter screen, and utilizing the edge-sealing structure and permanent magnet rings to achieve stable coating, the problems of filter screen edge wear and insufficient precision are solved, extending service life and improving filtration efficiency, making it suitable for filtration needs in various environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJIANG CHENGYI PRECISION MASCH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
During installation, disassembly, or use, the edges of the filter screen are easily pulled, rubbed, or squeezed, which can cause the edges to deform, tear, or loosen, resulting in material leakage through gaps. At the same time, the filtration accuracy is insufficient, making it difficult to meet the usage requirements of specific environments.
A high-precision edge-sealed filter screen was designed. By setting edge one and edge two, and utilizing structures such as slots, connecting rings, permanent magnet rings, pin holes, guide rods, springs, blocks, pins, elastic sheets, and rubber plugs, the filter screen body is stably covered, enhancing the edge connection stability. Dual filtration is achieved through the filter plate and permanent magnet ring, thereby improving the filtration accuracy.
It extends the service life of the filter screen, avoids leakage due to edge wear, improves filtration accuracy and efficiency, ensures tight installation with equipment, and is suitable for filtration needs in different environments.
Smart Images

Figure CN224388190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to a high-precision edge-sealed filter. Background Technology
[0002] A filter screen, or simply filter mesh, is made of metal wire mesh of different mesh sizes or other materials. The machine on which the filter screen is installed is called a filter. Its main functions are to filter molten material flow, increase flow resistance, remove mechanical impurities, and improve the mixing or plasticizing effect. It is also used to filter pollutants, impurities, and other harmful substances from fluids such as air, water, and food to protect equipment, improve product quality, and ensure health.
[0003] During installation, disassembly, or use, the edges of filter screens are easily subjected to pulling, friction, or compression. For example, when metal filter screens are repeatedly washed, the edges may develop burrs, deformation, or even tearing due to uneven stress. If the edges of textile fiber filter screens are not secured, they are prone to loosening and falling off. When fluid passes through the filter screen, it will be subjected to impact force, which may cause the edges to loosen, resulting in material leakage through the gaps. For example, liquids, gases, or particles may flow around the filter screen through the edge gaps. Furthermore, some filter screens have too low a filtration precision, making them unsuitable for use in specific environments. Therefore, there is a need for a high-precision edge-sealed filter screen. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a high-precision edge-sealed filter screen.
[0005] The technical solution of this utility model is as follows: A high-precision edging filter screen includes an edging first and an edging second. The edging first and edging second have a slot first and a slot second respectively on their adjacent sides. A single filter screen body is slidably disposed inside the slots first and second. The filter screen body includes a filter plate first and a filter plate second. A connecting ring is provided between the filter plate first and the filter plate second. A permanent magnet ring is provided on the inner ring of the connecting ring. Pin holes are provided around the circumference of the edging first. Each pin hole has a mounting groove on the side closest to the center of the edging first. A guide rod is provided inside the mounting groove. A spring is sleeved on the outer ring of the guide rod. A stop block is slidably disposed on the outer ring of the top of the guide rod. A pin post is provided on the top surface of the stop block. Two sets of elastic plates are provided on the right side of the edging first. A locking block is provided on the right side of each elastic plate. Through holes are provided through the left and right sides of the edging second. Each set of elastic plates is located inside a corresponding through hole.
[0006] Preferably, the side of the first edge banding away from the second edge banding is inclined towards the center, the side of the first edge banding near the second edge banding is provided with two positioning strips, and the side of the second edge banding near the first edge banding is provided with two positioning grooves, and the positioning strips and positioning grooves are slidably connected.
[0007] Preferably, the filter holes on the first filter plate are larger than those on the second filter plate.
[0008] Preferably, the outer ring of the stop block is slidably connected to the inner wall of the mounting groove.
[0009] Preferably, a groove is provided at the bottom end of the pin near the guide rod, the outer ring of the guide rod is slidably connected to the inner wall of the groove, and the outer ring of the pin is slidably connected to the inner wall of the pin hole.
[0010] Preferably, the elastic sheet has the ability to bend and deform elastically. The two elastic sheets in each group are positioned so that the sides of the two elastic sheets that are far apart from each other are in contact with the inner walls of the front and rear sides of each through hole. A rubber plug is slidably disposed between the two elastic sheets in each group.
[0011] Preferably, the card blocks are arranged in right-angled triangles, and the left side of each card block is attached to the right side of the second edging.
[0012] Compared with the prior art, the present invention has the following beneficial technical effects:
[0013] This utility model, by setting edging one to slot two, facilitates the covering of the filter screen body between them, reducing wear caused by direct contact between the edges and the outside environment, thereby extending the overall service life. It also makes the edges of the filter screen body more regular, ensuring a tight fit with the installation interface of the filter, pipe, or equipment, preventing material leakage due to loose edges. By setting the filter screen body, large particles can be filtered first, followed by small particles. The permanent magnet ring adsorbs media containing magnetic particles, achieving dual filtration and improving filtration accuracy in conjunction with filter plate one and filter plate two. The pin holes to pin posts facilitate the installation of the equipment at the installation interface. The elastic sheet to the through hole facilitates the assembly and disassembly of edging one and edging two. The rubber plug prevents the elastic sheet from bending, ensuring connection stability. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 4 for Figure 3 Enlarged diagram of A in the middle;
[0018] Figure 5 This is a schematic diagram of the structure of the edge banding in this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of the second edge banding in this utility model;
[0020] Figure 7 This is a schematic diagram of the structure of the filter screen body in this utility model.
[0021] Reference numerals in the attached drawings: 1. Edge banding one; 2. Edge banding two; 3. Slot one; 4. Slot two; 5. Filter screen body; 501. Filter plate one; 502. Filter plate two; 503. Connecting ring; 504. Permanent magnet ring; 6. Pin hole; 7. Mounting groove; 8. Guide rod; 9. Spring; 10. Stop block; 11. Pin; 12. Elastic sheet; 13. Locking block; 14. Through hole; 15. Positioning strip; 16. Positioning groove; 17. Rubber plug. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0023] like Figures 1 to 7 As shown, the present invention proposes a high-precision edge-sealed filter screen, including edge-sealing 1 and edge-sealing 2. The side of edge-sealing 1 away from edge-sealing 2 is inclined towards the center. Installing the side of edge-sealing 1 inclined towards the center on the side of fluid impact facilitates the guidance of fluid to the center and prevents it from accumulating. Two positioning strips 15 are provided on the side of edge-sealing 1 near edge-sealing 2. Edge-sealing 1 and positioning strips 15 are fixedly connected. Two positioning grooves 16 are provided on the side of edge-sealing 2 near edge-sealing 1. Positioning strips 15 and positioning grooves 16 are slidably connected. The slidable connection between positioning strips 15 and positioning grooves 16 facilitates the positioning and installation of edge-sealing 1 and edge-sealing 2. The sides of edge-sealing 1 and edge-sealing 2 that are close to each other are respectively provided with slot 1 3 and slot 2 4. The same filter screen body 5 is slidably arranged inside slot 1 3 and slot 2 4.
[0024] By placing the filter body 5 between edge banding 1 and edge banding 2, the filter body 5 is located within slot 3 and slot 4, which facilitates the covering of the periphery of the filter body 5, preventing the edges of the filter body 5 from directly contacting the outside and causing wear, thereby extending the overall service life. This also makes the edges of the filter body 5 more regular and tightly fits the installation interface of the filter, pipe or equipment, avoiding material leakage due to loose edges. The filter body 5 includes filter plate 1 501 and filter plate 2 502. The filter holes on filter plate 1 501 are larger than those on filter plate 2 502. Filtering large particles first and then small particles can improve the filtration accuracy and efficiency. A connecting ring 503 is provided between filter plate 1 501 and filter plate 2 502. The connecting ring 503 is fixedly installed between filter plate 1 501 and filter plate 2 502. A permanent magnet ring 504 is provided in the inner ring of the connecting ring 503. The permanent magnet ring 504 is fixedly installed in the inner ring of the connecting ring 503.
[0025] By setting a permanent magnet ring 504, it is easy to adsorb media containing magnetic particles. Together with filter plate 1 501 and filter plate 2 502, dual filtration is achieved to improve filtration accuracy. Pin holes 6 are opened around the perimeter of the edging 1. Each pin hole 6 has a mounting groove 7 on the side near the center of the edging 1. A guide rod 8 is set inside the mounting groove 7. The guide rod 8 is fixedly installed inside the mounting groove 7. A spring 9 is sleeved on the outer ring of the guide rod 8. A stop block 10 is slidably set on the outer ring of the top of the guide rod 8. The spring 9 can always keep the stop block 10 in place. A force is applied, and the outer ring of the stop block 10 is slidably connected to the inner wall of the mounting groove 7. The mounting groove 7 facilitates the limiting of the stop block 10 and prevents the stop block 10 from detaching from the inside of the mounting groove 7. A pin 11 is provided on the top surface of the stop block 10, and the top surface of the stop block 10 is fixedly connected to the bottom end of the pin 11. A sliding groove is opened at the bottom end of the pin 11 near the guide rod 8, and the outer ring of the guide rod 8 is slidably connected to the inner wall of the sliding groove. The sliding connection between the guide rod 8 and the sliding groove facilitates the guiding and limiting of the running trajectory of the pin 11.
[0026] The outer ring of the pin 11 is slidably connected to the inner wall of the pin hole 6. Two sets of elastic plates 12 are provided on the right side of the first edge 1. The right side of the first edge 1 is fixedly connected to the left side of the elastic plate 12. Each elastic plate 12 has a locking block 13 on its right side. The right side of the elastic plate 12 is fixedly connected to the left side of the locking block 13. The locking block 13 is arranged in a right-angled triangle. The left side of each locking block 13 is attached to the right side of the second edge 2. The attachment of the locking block 13 to the right side of the second edge 2 facilitates a stable connection between the first edge 1 and the second edge 2. The second edge 2 has through holes 14 on both sides. Each set of elastic plates 12 is located at... Inside a corresponding through hole 14, the elastic sheet 12 has the ability to bend and deform, which facilitates the movement of the locking block 13 from the left side of the second edge 2 to the right side of the second edge 2. The two elastic sheets 12 in each group are positioned so that the side away from each other is in contact with the inner walls of the front and rear sides of each through hole 14, which facilitates the limiting of the elastic sheet 12. A rubber plug 17 is slidably provided between the two elastic sheets 12 in each group. The rubber plug 17 is provided to improve the friction, prevent the rubber plug 17 from coming off between the two elastic sheets 12, and ensure that the elastic sheet 12 will not bend, thereby improving stability.
[0027] In this embodiment, when assembly is required, the filter plate 501 is placed inside the slot 3 with one side facing the side close to the edge 1. Then, the side of the edge 2 with the slot 4 is aligned with the edge 1, so that the positioning strip 15 is installed inside the positioning groove 16. The locking block 13 passes through the through hole 14 from the left side to the right side of the edge 2. Then, the rubber plug 17 is inserted between the two elastic pieces 12 to prevent the elastic pieces 12 from bending, which helps to ensure the stability of the connection between the edge 1 and the edge 2. When the equipment needs to be installed in the filter pipe, the pin groove corresponding to the pin 11 needs to be started inside the filter pipe. The pin 11 is aligned with the corresponding pin groove. Then, the pin 11 is pressed back into the pin hole 6. After alignment, the limit on the pin 11 can be released. The stop block 10 is moved by the pushing force of the spring 9, so that the pin 11 can be installed into the corresponding pin groove, thus completing the installation of the equipment.
[0028] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A high filtration accuracy gasketed filter screen comprising a gasket one (1) and a gasket two (2), characterized in that: The first edge banding (1) and the second edge banding (2) are respectively provided with a slot 1 (3) and a slot 2 (4) on their adjacent sides. The same filter screen body (5) is slidably arranged inside the slot 1 (3) and the slot 2 (4). The filter screen body (5) includes a filter plate 1 (501) and a filter plate 2 (502). A connecting ring (503) is provided between the filter plate 1 (501) and the filter plate 2 (502). A permanent magnet ring (504) is provided on the inner ring of the connecting ring (503). Pin holes (6) are provided around the first edge banding (1). Each pin hole (6) is close to the first edge banding (1). A mounting groove (7) is provided on one side of the center. A guide rod (8) is provided inside the mounting groove (7). A spring (9) is sleeved on the outer ring of the guide rod (8). A stop block (10) is slidably provided on the outer ring of the top of the guide rod (8). A pin (11) is provided on the top surface of the stop block (10). Two sets of elastic plates (12) are provided on the right side of the first edge (1). A locking block (13) is provided on the right side of each elastic plate (12). Through holes (14) are provided on the left and right sides of the second edge (2). Each set of elastic plates (12) is located inside a corresponding through hole (14).
2. The high filtration accuracy wrapped screen according to claim 1, wherein, The side of the first edge (1) away from the second edge (2) is inclined towards the center. The side of the first edge (1) near the second edge (2) is provided with two positioning strips (15). The side of the second edge (2) near the first edge (1) is provided with two positioning grooves (16). The positioning strips (15) and the positioning grooves (16) are slidably connected.
3. The high filtration accuracy bound filter screen of claim 1, wherein, The filter holes on filter plate one (501) are larger than the filter holes on filter plate two (502).
4. The high filtration accuracy wrapped screen of claim 1, wherein, The outer ring of the stop (10) is slidably connected to the inner wall of the mounting groove (7).
5. The high filtration accuracy wrapped screen of claim 1, wherein, The pin (11) has a groove at the bottom end near the guide rod (8), the outer ring of the guide rod (8) is slidably connected to the inner wall of the groove, and the outer ring of the pin (11) is slidably connected to the inner wall of the pin hole (6).
6. The high-precision wrapped filter screen of claim 1, wherein, The elastic sheet (12) has the ability to bend and deform. The two elastic sheets (12) in each group of elastic sheets (12) are in contact with the inner walls of the front and rear sides of each through hole (14) on the side that is far away from each other. A rubber plug (17) is slidably arranged between the two elastic sheets (12) in each group of elastic sheets (12).
7. The high-precision wrapped filter screen of claim 1, wherein, The card block (13) is arranged in a right-angled triangle, and the left side of each card block (13) is attached to the right side of the second edge (2).