Y-type filter square hole folding filter element structure

Abstract

The utility model discloses a kind of Y-type filter square hole folding filter element structure, the inside of metal woven filter screen is concentrically provided with folding filter element, the circumferential side surface of the folding filter element is in contact with the inside of metal woven filter screen, support clamping column is arranged between the bottom cover and top cover, one end of the length direction of the support clamping column is connected with top cover, the other end of the length direction of the support clamping column is connected with bottom cover, the top of the folding filter element and the upper connecting structure of plug-in shaft cooperation, lower connecting structure is arranged between the bottom of the folding filter element and support clamping column. By the cooperation of plug-in shaft and plug-in hole, the quick connection and disassembly of top cover and maintenance cover are realized, by the connection of support clamping column, the quick connection and disassembly of bottom cover and top cover are realized, folding filter element is conveniently disassembled, replaced and cleaned.

Description

Technical Field

[0001] This utility model relates to filter cartridges, and more particularly to a Y-type filter cartridge structure with square holes and pleats. Background Technology

[0002] The filter element of a Y-type filter is the core filtration component in the filtration process. It is usually made of stainless steel woven mesh or perforated plate to form a high-precision filtration barrier. Its core function is to intercept solid impurities in the pipeline fluid, such as rust, silt or mechanical debris, to protect downstream pumps, valves and instruments from damage. The mesh size of the filter can be flexibly selected according to filtration requirements, and impurities are trapped inside or on the surface of the filter element.

[0003] In the prior art, the invention patent with application number "201310652789.4" discloses a Y-type filter. The filter element of the Y-type filter is usually closed at one end, which corresponds to the inspection port of the filter. The other end of the filter element is the fluid inlet. In order to improve the filtration effect of the filter element, a pleated filter element structure is usually added inside the filter element to achieve a double filtration effect. However, it is inconvenient to fix the filter screen, filter element and inspection cover. Therefore, a filter element structure that is easier to disassemble and fix is ​​needed. Utility Model Content

[0004] The purpose of this utility model is to provide a Y-type filter with a square hole pleated filter element structure, which allows the inspection cover and the filter element to be disassembled as a whole, and has the advantages of convenient installation and disassembly.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a Y-type filter square hole pleated filter element structure, including an inspection cover, a top cover concentrically disposed at the bottom of the inspection cover, a connecting shaft disposed at the bottom of the inspection cover, a connecting hole through the top cover that mates with the connecting shaft, a fixing cover disposed on the connecting shaft, a metal woven filter mesh disposed on the circumferential side of the top cover, the metal woven filter mesh being concentrically disposed with the inspection cover and one end connected to the top cover, and the other end of the metal woven filter mesh in the length direction... The filter has a bottom cover with a water inlet hole through its center. A pleated filter element is concentrically arranged on the inner side of the metal woven filter screen. The circumferential side of the pleated filter element abuts against the inner side of the metal woven filter screen. A supporting clamping post is provided between the bottom cover and the top cover. One end of the supporting clamping post along its length is connected to the top cover, and the other end along its length is connected to the bottom cover. The top of the pleated filter element has an upper connecting structure that mates with the insertion shaft, and the bottom of the pleated filter element has a lower connecting structure that is provided between the supporting clamping post and the bottom of the pleated filter element.

[0006] Preferably, the top of the inspection cover is provided with a handle, the circumferential side of the inspection cover extends downward to form a side cover, the inner side of the side cover is provided with an internal thread that mates with the inspection port, and a sealing gasket is provided between the side cover and the top cover.

[0007] By adopting the above technical solution, during use, the inspection cover is locked and fixed to the inspection port through the internal thread on the side cover, and at the same time, the sealing gasket cooperates with the internal thread to play a double sealing role.

[0008] Preferably, the metal woven filter screen has uniformly distributed filter holes, the filter holes are rectangular, the edge of the top cover is recessed downward to form a positioning groove, the positioning groove is arranged around the circumferential side of the top cover, and the top of the metal woven filter screen is welded and fitted into the positioning groove.

[0009] By adopting the above technical solution, the metal woven filter mesh plays a supporting and fixing role, and the positioning groove facilitates the pre-positioning of the metal woven filter mesh, which is convenient for subsequent welding.

[0010] Preferably, the pleated filter elements are connected end to end in the horizontal direction, and are stacked in a V-shape in the horizontal direction. The pleated filter elements are provided with an upper fixed edge and a lower fixed edge in the height direction, and the upper fixed edge and the lower fixed edge extend inward in the horizontal direction along the radial direction of the metal woven filter mesh.

[0011] By adopting the above technical solution, the multi-combined dual filter structure improves the filtration effect of the filter. At the same time, the upper and lower fixed sides work together to fix the pleated filter element, making it convenient to install and remove the pleated filter element.

[0012] Preferably, the upper connecting structure includes a threaded hole, an upper thread, a first upper through hole, and a second upper through hole. The threaded hole is located at the bottom of the inspection cover. The first upper through hole penetrates the top cover and is evenly distributed along the circumference of the top cover. The first upper through hole allows the supporting clamping column to pass through. The second upper through hole penetrates the upper fixed edge and allows the supporting clamping column and the plug shaft to pass through respectively. The second upper through hole mates with the fixed cover.

[0013] By adopting the above technical solution, the upper connecting structure uses the threaded hole and the upper thread to support and fix the top cover and the bottom cover, while the second through hole cooperates with the fixing cover to fix the folded filter element.

[0014] Preferably, the fixing cover is threaded or plugged into the insertion hole, and the lower edge of the fixing cover presses against the edge of the second upper through hole.

[0015] By adopting the above technical solution, the fixing cover, through threaded connection or plug-in connection, serves to clamp and fix the upper fixing edge of the folded filter screen to the top cover.

[0016] Preferably, the lower connecting structure includes a lower through hole, a lower thread, and a nut. The lower through hole is disposed through the lower fixed side and is distributed around the lower fixed side. The lower through hole allows the support clamping column to pass through. The lower thread is disposed on the circumferential side of the position where the support clamping column passes through the lower through hole. The nut cooperates with the lower thread to clamp the lower fixed side.

[0017] By adopting the above technical solution, the nut engages with the lower thread on the support clamping column to fix the lower fixed edge of the folded filter element to the bottom cover.

[0018] Preferably, the supporting clamping column is a double-threaded bolt or a double-threaded screw, and the bottom cover is provided with a countersunk hole that mates with the double-threaded bolt.

[0019] By adopting the above technical solution, the countersunk hole prevents the end of the double-threaded bolt from protruding from the surface of the bottom cover, which facilitates the sealing inside the filter. The double-threaded screw avoids protruding directly from the surface of the bottom cover, but the thickness of the bottom cover will affect the structural strength.

[0020] In summary, the pleated filter element serves as the internal fine filter, while the external metal braided mesh strengthens the structure and restricts the pleated filter element. The overall structure consists of three parts: an inspection cover, a top cover, and a bottom cover. The metal braided mesh is integrated with the top cover, and the pleated filter element is mounted on the bottom cover. The top cover and inspection cover can be quickly connected and disassembled through the interlocking shaft and interlocking holes. The bottom cover and top cover can be quickly connected and disassembled through the connection of the supporting clamping columns, facilitating the disassembly, replacement, and cleaning of the pleated filter element. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an embodiment. Figure 1 ; Figure 2 This is a structural diagram of an embodiment. Figure 2 ; Figure 3 This is a cross-sectional schematic diagram of an embodiment; Figure 4 yes Figure 3 An enlarged schematic diagram of part A is shown below; Figure 5 yes Figure 3 An enlarged schematic diagram of part B is shown below; In the diagram, 1. Inspection cover; 11. Insertion shaft; 12. Fixed cover; 13. Handle; 14. Side cover; 15. Gasket; 2. Top cover; 21. Insertion hole; 22. Positioning groove; 3. Metal braided filter screen; 4. Folded filter element; 41. Upper fixed edge; 42. Lower fixed edge; 5. Bottom cover; 51. Water inlet hole; 52. Support clamping column; 53. Countersunk hole; 6. Threaded hole; 61. Upper thread; 62. First upper through hole; 63. Second upper through hole; 7. Lower through hole; 71. Lower thread; 72. Nut. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] Example: like Figures 1 to 5 As shown, a Y-type filter square hole pleated filter element structure includes an inspection cover 1, which is a metal cover. The overall structure of the inspection cover 1 is as follows: a handle 13 is welded to the top of the inspection cover 1 to facilitate the rotation of the inspection cover 1; the circumferential side of the inspection cover 1 extends downward to form a side cover 14; the inner side of the side cover 14 is provided with an internal thread that mates with the inspection port; a sealing gasket 15 is provided between the side cover 14 and the top cover 2; during the rotation of the inspection cover 1 toward the inspection port, the sealing gasket 15 is pressed together through the engagement of the internal thread, thereby achieving a sealing effect.

[0025] like Figure 3 As shown, a top cover 2 is concentrically arranged at the bottom of the inspection cover 1. A plug-in shaft 11 is arranged at the bottom of the inspection cover 1. A plug-in hole 21 that mates with the plug-in shaft 11 is arranged through the top cover 2. A fixing cover 12 is arranged on the plug-in shaft 11. Multiple plug-in holes 21 and plug-in shaft 11 are evenly distributed along the circumference, thereby playing a fixing role in the horizontal direction. When the plug-in shaft 11 passes through the plug-in hole 21, it is clamped and fixed by the fixing cover 12, which plays a role in fixing the top cover 2 to the inspection cover 1. The fixing cover 12 and the plug-in shaft 11 can be fixed in various ways, such as the fixing cover 12 being threadedly connected to the plug-in hole 21 or plugged in.

[0026] like Figure 4 and Figure 5As shown, a metal woven filter screen 3 is provided on the circumferential side of the top cover 2. The metal woven filter screen 3 has evenly distributed filter holes, which are rectangular. The metal woven filter screen 3 is concentrically arranged with the inspection cover 1 and one end is connected to the top cover 2. The edge of the top cover 2 is recessed downward to form a positioning groove 22. The positioning groove 22 is arranged around the circumferential side of the top cover 2. The top of the metal woven filter screen 3 is connected and fitted to the positioning groove 22 by welding. The positioning groove 22 plays a role in pre-positioning the metal woven filter screen 3.

[0027] like Figure 3 and Figure 5 As shown, the other end of the metal woven filter screen 3 along its length abuts against the bottom cover 5. A water inlet hole 51 is perforated through the center of the bottom cover 5. During use, fluid enters the filter through the water inlet hole 51. To achieve a dual filtration effect, the metal woven filter screen 3 primarily serves a supporting function. A pleated filter element 4 is concentrically arranged on the inner side of the metal woven filter screen 3. The circumferential side of the pleated filter element 4 abuts against the inner side of the metal woven filter screen 3. The pleated filter element 4 is a metal pleated mesh. Figure 2 As shown, the pleated filter elements 4 are connected end to end in the horizontal direction, and the pleated filter elements 4 are stacked in a V-shape in the horizontal direction, as shown. Figure 3 As shown, the pleated filter element 4 has an upper fixed edge 41 and a lower fixed edge 42 in the height direction. The upper fixed edge 41 and the lower fixed edge 42 extend inward along the horizontal direction in the radial direction of the metal woven filter screen 3.

[0028] like Figure 3 As shown, a support clamping column 52 is provided between the bottom cover 5 and the top cover 2. The top of the support clamping column 52 in the height direction is connected to the top cover 2, and the other end of the support clamping column 52 in the length direction, i.e. the bottom, is connected to the bottom cover 5. The top of the folded filter element 4 is connected to the upper connection structure that cooperates with the insertion shaft 11, and the bottom of the folded filter element 4 is connected to the support clamping column 52 in the lower connection structure.

[0029] like Figure 4 As shown, the upper connecting structure includes a threaded hole 6, an upper thread 61, a first upper through hole 62, and a second upper through hole 63. The threaded hole 6 is located at the bottom of the inspection cover 1. The first upper through hole 62 penetrates the top cover 2 and is evenly distributed along the circumference of the top cover 2. The first upper through hole 62 allows the support clamping column 52 to pass through. The second upper through hole 63 penetrates the upper fixed edge 41 and allows the support clamping column 52 and the insertion shaft 11 to pass through. The second upper through hole 63 cooperates with the fixed cover 12. The lower edge of the fixed cover 12 presses against the edge of the second upper through hole 63, which serves to clamp the upper fixed edge 41 of the folded filter element 4. The upper thread 61 is located at one end of the support clamping column 52.

[0030] like Figure 5As shown, the lower connecting structure serves to fix and connect the bottom cover 5 and the top cover 2, while also clamping the folded filter element 4. The lower connecting structure includes a lower through hole 7, a lower thread 71, and a nut 72. The lower through hole 7 is set through the lower fixed edge 42 and is distributed around the lower fixed edge 42. The lower through hole 7 allows the support clamping column 52 to pass through. The lower thread 71 is set on the circumferential side of the support clamping column 52 where it passes through the lower through hole 7. That is, the support clamping column 52 is a double-threaded bolt or a double-threaded screw. The bottom cover 5 is provided with a countersunk hole 53 that mates with the double-threaded bolt. The nut 72 mates with the lower thread 71 to clamp the lower fixed edge 42.

[0031] Installation process: The top of the metal braided filter screen 3 is embedded into the positioning groove 22 formed by the downward indentation on the circumferential side of the top cover 2 and welded. The upper thread 61 end of the support clamping column 52 is screwed into or passes through the first upper through hole 62 provided on the top cover 2 to achieve initial fixation. The pleated filter element 4 is inserted from the bottom into the support clamping column 52 and the metal braided filter screen 3 that are already connected to the top cover 2. Ensure that the lower through hole 7 on the lower fixed edge 42 at the bottom of the pleated filter element 4 is aligned and passes through the support clamping column 52. The nut 72 is locked in the lower thread 71 position through the water inlet hole 51 to firmly clamp the bottom cover 5, the lower fixed edge 42 of the pleated filter element 4 and the support clamping column 52 together, completing the fixation of the lower part of the filter element. The insertion hole 21 on the top cover 2 is aligned with the insertion hole at the bottom of the inspection cover 1. Insert shaft 11, ensuring that the insertion shaft 11 also passes through the second upper through hole 63 provided on the upper fixed edge 41 of the top of the folded filter element 4. Install the fixing cover 12 through the water inlet hole 51, insert it into the end of the insertion shaft 11 and tighten it downwards or press it, so that the lower edge of the fixing cover 12 presses against the edge of the upper fixed edge 41, thereby completing the fixing of the upper part of the filter element. Place the assembled filter element structure into the inspection port of the filter, rotate the inspection cover 1, and use the internal thread on the side cover 14 formed by its circumferential side extending downwards to engage with the external thread on the filter inspection port to screw the entire filter element structure into and fix it in the filter housing. During this process, the sealing gasket 15 between the side cover 14 and the top cover 2 is compressed to form a reliable seal and prevent fluid leakage.

Claims

1. A Y-type filter with square-hole pleated filter element structure, characterized in that: The system includes an inspection cover (1), a top cover (2) concentrically disposed at the bottom of the inspection cover (1), a connector shaft (11) disposed at the bottom of the inspection cover (1), a connector hole (21) for engaging with the connector shaft (11) being disposed through the top cover (2), a fixing cover (12) being disposed on the connector shaft (11), a metal woven filter (3) disposed on the circumferential side of the top cover (2), the metal woven filter (3) being concentrically disposed with the inspection cover (1) and one end being connected to the top cover (2), the other end of the metal woven filter (3) abutting against a bottom cover (5) in the length direction, and an inlet hole being disposed through the center of the bottom cover (5). Water hole (51), the inner side of the metal woven filter screen (3) is concentrically provided with a pleated filter element (4), the circumferential side of the pleated filter element (4) abuts against the inner side of the metal woven filter screen (3), a support clamping column (52) is provided between the bottom cover (5) and the top cover (2), one end of the support clamping column (52) in the length direction is connected to the top cover (2), the other end of the support clamping column (52) in the length direction is connected to the bottom cover (5), the top of the pleated filter element (4) is connected to the upper connection structure that cooperates with the insertion shaft (11), and the bottom of the pleated filter element (4) is connected to the support clamping column (52) in the lower connection structure.

2. The Y-type filter square hole pleated filter element structure according to claim 1, characterized in that: The top of the inspection cover (1) is provided with a handle (13), and the circumferential side of the inspection cover (1) extends downward to form a side cover (14). The inner side of the side cover (14) is provided with an internal thread that mates with the inspection port. A sealing gasket (15) is provided between the side cover (14) and the top cover (2).

3. The Y-type filter square hole pleated filter element structure according to claim 1, characterized in that: The metal woven filter screen (3) has uniformly distributed filter holes, which are rectangular. The edge of the top cover (2) is recessed downward to form a positioning groove (22). The positioning groove (22) is arranged around the circumferential side of the top cover (2). The top of the metal woven filter screen (3) is welded and fitted with the positioning groove (22).

4. The Y-type filter square hole pleated filter element structure according to claim 1, characterized in that: The folded filter element (4) is connected end to end in the horizontal direction. The folded filter element (4) is stacked in a V-shape in the horizontal direction. The folded filter element (4) has an upper fixed edge (41) and a lower fixed edge (42) in the height direction. The upper fixed edge (41) and the lower fixed edge (42) extend inward in the horizontal direction along the radial direction of the metal woven filter screen (3).

5. The Y-type filter square hole pleated filter element structure according to claim 4, characterized in that: The upper connecting structure includes a threaded hole (6), an upper thread (61), a first upper through hole (62), and a second upper through hole (63). The threaded hole (6) is located at the bottom of the inspection cover (1). The first upper through hole (62) is located through the top cover (2) and is evenly distributed along the circumference of the top cover (2). The first upper through hole (62) is for the support clamping column (52) to pass through. The second upper through hole (63) is located through the upper fixed edge (41) and is for the support clamping column (52) and the plug shaft (11) to pass through respectively. The second upper through hole (63) is engaged with the fixed cover (12). The upper thread (61) is located at one end of the support clamping column (52).

6. The Y-type filter square hole pleated filter element structure according to claim 5, characterized in that: The fixing cover (12) is threaded or plugged into the insertion hole (21), and the lower edge of the fixing cover (12) presses against the edge of the second upper through hole (63).

7. The Y-type filter square hole pleated filter element structure according to claim 1, characterized in that: The lower connecting structure includes a lower through hole (7), a lower thread (71), and a nut (72). The lower through hole (7) is provided through the lower fixed side (42) and is distributed around the lower fixed side (42). The lower through hole (7) allows the support clamping column (52) to pass through. The lower thread (71) is provided on the circumferential side of the position where the support clamping column (52) passes through the lower through hole (7). The nut (72) cooperates with the lower thread (71) to clamp the lower fixed side (42).

8. The Y-type filter square hole pleated filter element structure according to claim 7, characterized in that: The supporting clamping column (52) is a double-threaded bolt or a double-threaded screw, and the bottom cover (5) is provided with a countersunk hole (53) that mates with the double-threaded bolt.

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