Multi-functional filter

Abstract

This utility model discloses a multifunctional filter, belonging to the field of filter machines. It includes a movable frame; a filter assembly, which includes a filter cylinder mounted on the upper end of the movable frame, a top cover covering the filter cylinder, a first connecting ring extending outwards from the filter cylinder, a fastening part connecting the first connecting ring to the top cover, a bottom cover at the bottom of the filter cylinder, a second connecting ring extending outwards from the bottom end of the filter cylinder, a fastening part connecting the second bottom cover to the second connecting ring, and an annular boss installed on the inner wall of the bottom cover near the opening; and a filter disc assembly, which includes a filter disc placed inside the bottom cover, a positioning structure between the filter disc and the boss, and a circumferential locking element on the filter disc for locking the limiting pressure ring. The multifunctional filter of this application, through the separate design of the upper and lower covers of the filter assembly with fastening parts, reduces the difficulty of disassembly for filter media replacement and maintenance; the positioning structure and circumferential locking element of the filter disc assembly ensure the filter cloth is secure, allowing for flexible adaptation to various filter media to meet different process requirements.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a multifunctional filter. Background Technology

[0002] Filters are key process equipment for solid-liquid phase separation in industrial production. Their strong adaptability allows them to operate efficiently under both positive and negative pressure conditions, making them widely and significantly used in industries with high requirements for separation precision and stability, such as chemical, petrochemical, environmental protection, pharmaceutical, pesticide, and fine chemical industries. In terms of filtration methods, they offer diverse functions, flexibly implementing pressure filtration, pump filtration, and vacuum extraction filtration according to different process requirements. The main flange of this filter uses a bolted connection, which not only provides stable and reliable tightening force but also ensures the sealing and structural stability of the equipment under various operating conditions.

[0003] Existing filters for solid-liquid separation have certain limitations and cannot meet the demands of convenient production. Structurally and functionally, existing equipment mostly adopts a single structure with a top-opening filter bag and a bottom-opening filter cloth or screen. This limited functionality makes it difficult to flexibly adapt to the diverse needs of different processes for filter media types (such as filter bags, filter cloths, and sintered screens), restricting its application in complex working conditions. This single-structure design makes changing filter media based on different material characteristics or process requirements cumbersome, often requiring significant disassembly of the equipment. Especially when replacing filter media or performing internal maintenance, this consumes production time and reduces production efficiency. Therefore, a multi-functional filter machine is needed.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] This utility model provides a multi-functional filter to solve the problems of existing solid-liquid separation filters having a single structure and function, difficulty in adapting to various filter media, and the need for disassembly for replacement and maintenance, which is time-consuming and reduces production efficiency.

[0006] This utility model embodiment adopts the following technical solution: a multi-functional filter. It mainly includes a movable frame; a filter assembly, which is disposed on the movable frame, the filter assembly including a filter cylinder disposed at the upper end of the movable frame, a top cover covering the filter cylinder, a first connecting ring extending outward from the filter cylinder, a fastening part connecting the first connecting ring and the top cover, a bottom cover at the bottom of the filter cylinder, a second connecting ring extending outward from the bottom end of the filter cylinder, a fastening part connecting the second bottom cover and the second connecting ring, and an annular boss installed on the inner wall of the bottom cover near the opening; a filter disc assembly, which is installed inside the bottom cover, the filter disc assembly including a filter disc placed inside the bottom cover, a positioning structure between the filter disc and the boss, and a circumferential locking member for locking the limiting pressure ring on the filter disc.

[0007] Furthermore, the positioning structure includes an annular protrusion located near the outer periphery of the filter disc, an annular groove formed on the annular protrusion, a filter cloth placed on the annular protrusion, the filter cloth covering the disc surface and the annular protrusion, with its edge penetrating into the groove, a pressure ring pressed into the groove, and the bottom of the pressure ring having a locking part adapted to the groove.

[0008] Furthermore, an anti-slip pad is provided at the contact position between the engaging part and the clamping groove, and the anti-slip pad has both anti-slip and sealing functions.

[0009] Furthermore, the locking component includes a mounting base installed on the outer periphery of the filter disc. Two rocker arms are movably connected to both sides of the mounting base. One end of each rocker arm has a limiting part. Two rocker arms are attached to the opposite sides of the two sets of rocker arms. Each rocker arm also has a limiting part. Springs are sleeved on the rods of the rocker arms and rocker arms. The springs are axially limited by the limiting parts and the limiting parts. The limiting parts cooperate with the limiting parts to constrain the position of the springs.

[0010] The two ends of the spring are respectively limited by the limiting part one and the limiting part two. One end of the two sets of rocker arms two is connected to a hanging rod. The end of the hanging rod faces the pressure ring and has an L-shaped hook structure. The pressure ring has the same number of protrusions as the locking member. The surface of the protrusions is provided with hooks that are adapted to the hanging rod.

[0011] Furthermore, the hook-holding part is a U-shaped groove, which allows the end of the hanging rod to be engaged and limited.

[0012] Furthermore, a horn-shaped baffle extends from the pressure ring, with the horn opening of the baffle facing upwards towards the filter disc to receive the solid and liquid flowing down from inside the filter cylinder. A sealing ring is circumferentially embedded at the end of the baffle, and the sealing ring has an annular structure and fits tightly against the inner wall of the filter cylinder.

[0013] Furthermore, the fastening part includes multiple sets of fixing parts installed on the outer side of the filter cylinder. The multiple sets of fixing parts are evenly distributed along the outer circumference of the filter cylinder. Each set of fixing parts has two sets of protruding plates that are fixedly connected to the outer wall of the filter cylinder. A concave rod is rotatably installed between the two sets of protruding plates. A fastener is threaded to a right-angle section of the concave rod. A screw hole adapted to the fastener is opened at the corresponding position of the upper cover.

[0014] Furthermore, the contact surfaces of the upper cover and the first docking ring, and the contact surfaces of the lower cover and the second docking ring, are all provided with sealing elements.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0016] This multi-functional filter features a split upper and lower cover structure for the filter assembly, which, along with fastening parts one and two, allows for quick assembly and disassembly. The rocker arm rotation assembly facilitates the opening and closing of the filter cartridge cover, reducing the difficulty of disassembly for filter media replacement and internal maintenance. The filter disc assembly, through its positioning structure and circumferential locking mechanism, not only ensures a secure and reliable installation of the filter cloth but also flexibly adapts to various filter media types such as filter bags and sintered meshes, meeting the diverse filter media requirements of different processes. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of the multifunctional filter in this application;

[0020] Figure 2 for Figure 1 Exploded view;

[0021] Figure 3 for Figure 2 Middle side view;

[0022] Figure 4 for Figure 3 Enlarged view of point A;

[0023] Figure 5 for Figure 4 Enlarged view of point B;

[0024] Figure label:

[0025] 1. Support assembly; 11. Movable frame; 12. Pulley; 13. Handle; 2. Filter assembly; 21. Filter cartridge; 22. Connecting ring; 23. Fixing part; 24. Concave rod; 25. Fastener; 26. Top cover; 27. Bottom cover; 271. Boss; 3. Rocker arm rotation assembly; 31. Support column; 32. Limiting part; 33. Rocker arm rod; 35. Sleeve part; 36. Lifting wheel; 4. Filter assembly; 41. Filter disc; 411. Gap; 42. Filter cloth; 43. Pressure ring; 431. Engaging part; 44. Baffle; 441. Sealing ring; 45. Protrusion; 46. Mounting base; 47. Rocker arm one; 48. Limiting part one; 49. Spring; 410. Rocker arm two; 411. Hanging rod; 412. Hook. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-4 As shown, this utility model embodiment provides a multi-functional filter, including a support assembly 1, and the support assembly 1 includes a movable frame 11, and a pulley 12 is fixedly installed at the bottom of the movable frame 11. The pulley 12 is suitable for driving the movable frame 11 to move, and a handle 13 is fixedly installed on the movable frame 11 near one side. The handle 13 facilitates pushing the movable frame 11 to move.

[0029] A filter assembly 2 is provided on the movable frame 11. The filter assembly 2 includes a filter cylinder 21 provided on the upper end of the movable frame 11, and a top cover 26 is closed on the top of the filter cylinder 21. A docking ring 22 extends outward from the top of the filter cylinder 21 near the top cover 26, and a fastening part 1 is connected between the docking ring 22 and the top cover 26. The fastening part 1 is used to tightly connect the docking ring 22 and the top cover 26.

[0030] The fastening part includes multiple sets of fixing parts 23 fixedly installed on the outer side of the filter cylinder 21. The multiple sets of fixing parts 23 are evenly distributed along the outer circumference of the filter cylinder 21. Each set of fixing parts 23 has two sets of protruding plates fixedly connected to the outer wall of the filter cylinder 21, and a concave rod 24 is rotatably installed between the two sets of protruding plates. A fastener 25 is threadedly connected to a right angle section of the concave rod 24. At the same time, a screw hole (not shown in the figure) adapted to the fastener 25 is opened at the corresponding position of the upper cover 26. When the upper cover 26 is closed on the mating ring 22 at the top of the filter cylinder 21, the concave rod 24 of the multiple sets of fixing parts 23 is rotated. At this time, the fastener 25 is perpendicular to the upper cover 26. The upper cover 26 is tightly connected to the top of the filter cylinder 21 by tightening the fastener 25 to the screw hole.

[0031] Meanwhile, a lower cover 27 is provided at the bottom of the filter cylinder 21, and a second docking ring (not shown in the figure) extends outward from the bottom of the filter cylinder 21 near the lower cover 27. A second fastening part (not shown in the figure) is connected between the lower cover 27 and the second docking ring. The second fastening part and the first fastening part have similar structures. The lower cover 27 and the second docking ring are tightly connected through the cooperation of the corresponding parts.

[0032] Meanwhile, sealing elements are provided on the contact surfaces of the upper cover 26 and the first docking ring 22, and on the contact surfaces of the lower cover 27 and the second docking ring, to ensure the sealing of the connection. The upper part of the filter cylinder 21 is provided with an inlet for introducing the material to be filtered. The bottom of the lower cover 27 has a support leg that is fixed to the movable frame 11 to form a stable support for the filter cylinder 21. The bottom of the lower cover 27 is provided with a discharge structure for discharging the filtered material.

[0033] In order to open the top cover 26, as Figures 2-3 As shown, a rocker arm rotation assembly 3 is installed on the movable frame 11. The rocker arm rotation assembly 3 includes a support column 31 fixedly installed on the movable frame 11, and two sets of limiting parts 32 are fixedly sleeved on the support column 31. The two sets of limiting parts 32 are distributed at intervals along the axial direction of the support column 31, and a rocker arm rod 33 is simultaneously connected to the two sets of limiting parts 32 on the support column 31 by bearings. The inner side of the limiting part 32 abuts against the outer ring of the bearing of the rocker arm rod 33 to limit the axial displacement of the rocker arm rod 33 on the support column 31, while ensuring that the rocker arm rod 33 can rotate freely around the axis of the support column 31.

[0034] The rocker arm 33 is rotatably connected to the support column 31 via a bearing. A sleeve 35 is fixedly sleeved on the rocker arm 33 to adapt to rotate synchronously with the rocker arm 33. A lifting wheel 36 is threadedly connected to the sleeve 35 in a vertical state. The lower end of the lifting wheel 36 is fixedly connected to the top of the upper cover 26 via a flange. The height of the upper cover 26 can be adjusted vertically by rotating the lifting wheel 36.

[0035] When it is necessary to open the top cover 26, first loosen the fastener 25 of the fastening part one, rotate the lifting wheel 36 to move the top cover 26 upward and away from the top of the filter cylinder 21, and then rotate the rocker arm 33 around the support column 31 to move the top cover 26 to the side of the filter cylinder 21, which makes it easier to operate inside the filter cylinder 21; to close it, simply reverse the operation. The rotation range of the rocker arm 33 can cover the docking position between the top cover 26 and the filter cylinder 21.

[0036] like Figures 3-5 As shown, an annular boss 271 is fixedly installed on the inner wall of the lower cover 27 near the opening, and a filter disc assembly 4 is placed on the boss 271. The filter disc assembly 4 includes a filter disc 41 placed on the boss 271. A positioning structure is set between the filter disc 41 and the boss 271 to prevent horizontal slippage. The positioning structure includes an annular protrusion (not shown in the figure) set on the filter disc 41 near the outer periphery. An annular groove 413 is opened on the annular protrusion, and a filter cloth 42 is placed on the annular protrusion. The filter cloth 42 covers the disc surface of the filter disc 41 and the annular protrusion, and the edge hangs into the groove 413.

[0037] A pressure ring 43 is pressed into the groove 413. The bottom of the pressure ring 43 has a locking part 431 that is adapted to the groove 413. When the filter cloth 42 needs to be installed, the filter cloth 42 is laid on the annular protrusion (the edge naturally hangs into the groove 413), and the locking part 431 at the bottom presses a part of the filter cloth 42 into the groove 413 to secure the filter cloth 42. An anti-slip pad is provided at the contact position between the locking part 431 and the groove 413. The anti-slip pad has both anti-slip and sealing functions and fills the gap in the groove 413 to initially secure the filter cloth 42.

[0038] To further improve the installation stability of filter cloth 42, such as Figures 4-5 As shown, a circumferential locking component is provided between the pressure ring 43 and the filter disc 41 to restrict the pressure ring 43 from rotating around the filter disc 41 and ensure assembly stability. The locking component includes a mounting base 46 fixedly installed on the outer periphery of the filter disc 41. Rocker arm 47 is movably connected to both sides of the mounting base 46. One end of rocker arm 47 has a limiting part 48. At the same time, rocker arm 410 is attached to the side of the two rocker arms 47 that are far apart from each other. Rocker arm 410 also has a limiting part 2 (not shown in the figure). Spring 49 is sleeved on the rod of rocker arm 47 and rocker arm 410. Spring 49 is axially limited by limiting part 48 and limiting part 48. Limiting part 2 and limiting part 48 cooperate to constrain the position of spring 49.

[0039] The two ends of the spring 49 are respectively limited by the first limiting part 48 and the second limiting part, and a hanging rod 411 is fixedly connected to one end of the two sets of rocker arms 410. The end of the hanging rod 411 faces the pressure ring 43 and has an L-shaped hook structure. At the same time, the pressure ring 43 is provided with the same number of protrusions 45 as the locking member. The surface of the protrusion 45 is provided with a hook holding part 412 adapted to the hanging rod 411. The hook holding part 412 is a U-shaped groove for the end of the hanging rod 411 to be locked in and limited.

[0040] During assembly, first, pull the rocker arm 410 outward to compress the spring 49, causing the hanging rod 411 to swing outward away from the mounting area of ​​the pressure ring 43; then, cover the pressure ring 43 onto the filter disc 41, so that the engaging part 431 is embedded in the clamping groove 413; release the rocker arm 410, and the spring 49 elastically returns to its original position, driving the hanging rod 411 to swing back and engage with the hook part 412 of the pressure ring 43. Multiple sets of locking parts evenly distributed around the circumference work together to constrain the rotational freedom of the pressure ring 43 around the filter disc 41, preventing the filter cloth 42 from loosening due to displacement of the pressure ring 43;

[0041] Meanwhile, a horn-shaped baffle 44 extends integrally from the pressure ring 43. The horn of the baffle 44 faces upwards towards the filter disc 41 and receives the solid and liquid flowing down from the filter cylinder 21. A sealing ring 441 is circumferentially embedded at the end of the baffle 44. The sealing ring 441 has an annular structure and fits tightly against the inner wall of the filter cylinder 21. The sealing ring 441 forms an annular barrier to prevent the solid and liquid mixture from splashing onto the circumferential locking part area during filtration, and to prevent the locking part from corroding or getting stuck due to contact with the solid and liquid.

[0042] Working principle:

[0043] The bottom pulleys 12 of the movable frame 11, in conjunction with the handle 13, support rapid equipment transfer and workstation adjustment. The rocker arm rotation assembly 3 provides mechanical assistance for opening and closing the upper cover 26. After loosening the fastener 25 of the fastening part 1, rotating the lifting wheel 36 can vertically lift the upper cover 26. Rotating the rocker arm 33 around the support column 31 can move the upper cover 26 to the side of the filter cartridge 21, exposing the internal space for easy filter media replacement or equipment maintenance. When closing, the operation is reversed. The concave rod 24 and the fastener 25 cooperate to lock the upper cover 26. Combined with the contact surface seal, it ensures the sealing of the filter cartridge 21 and provides a stable environment for the filtration process.

[0044] The filter disc 41 is placed on the boss 271 by a positioning structure. The filter cloth 42 is installed using a layered fixing + locking reinforcement scheme. First, the edge of the filter cloth 42 is naturally inserted into the clamping groove 413. The engaging part 431 of the pressure ring 43 is embedded in the clamping groove 413 to press the filter cloth 42 tightly. The anti-slip pad fills the gap simultaneously, achieving a dual function of sealing and anti-slip. The circumferential locking component further restricts the rotation of the pressure ring 43: the rocker arm 410 is pulled outward to compress the spring 49. After the pressure ring 43 is closed, it is released, and the spring 49 elastically returns to its original position, driving the hanging rod 411 to engage with the hook part 412. Multiple sets of locking components work together to restrict the rotational freedom of the pressure ring 43 around the filter disc 41, preventing the filter cloth 42 from loosening due to displacement of the pressure ring 43. In addition, the trumpet-shaped baffle 44 on the pressure ring 43, together with the end sealing ring 441, forms an annular barrier on the inner wall of the filter cylinder 21, preventing the solid-liquid mixture from splashing onto the locking component, avoiding corrosion or jamming, and ensuring long-term stable operation of the component.

[0045] The material to be filtered enters the filter cylinder 21 through the inlet and flows from top to bottom through the filter disc assembly 4. The filter cloth 42 intercepts solid impurities, and the filtrate passes through the through holes of the filter disc 41 and collects in the lower cover 27, and is finally discharged through the bottom discharge structure. During the filtration process, the fastening parts (one / two) of the upper cover 26 and the lower cover 27 are locked at both ends of the filter cylinder 21 by the docking ring and the fastener 25, respectively. Together with the upper cover 26, the seal, the baffle 44, the sealing ring 441, the clamping groove 413, and the anti-slip pad, the filtration space is fully enclosed. The mechanical assistance of the rocker arm rotation assembly 3 and the multi-layer fixing structure of the filter disc assembly 4 not only improve the operating efficiency of the equipment, but also ensure the stability of the filter cloth 42, meeting the filtration needs in multiple scenarios.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-functional filter machine characterized by: include Mobile frame (11); A filter assembly (2) is mounted on the movable frame (11). The filter assembly (2) includes a filter cylinder (21) mounted on the upper end of the movable frame (11). The filter cylinder (21) is covered with an upper cover (26). A first docking ring (22) extends outward from the filter cylinder (21). A fastening part (2) is connected between the first docking ring (22) and the upper cover (26). A lower cover (27) is mounted on the bottom of the filter cylinder (21). A second docking ring extends outward from the bottom end of the filter cylinder (21). A fastening part (2) is connected between the lower cover (27) and the second docking ring. An annular boss (271) is installed on the inner wall of the lower cover (27) near the opening. A filter disc assembly (4) is installed inside the lower cover (27). The filter disc assembly (4) includes a filter disc (41) placed inside the lower cover (27). A positioning structure is provided between the filter disc (41) and the boss (271). A circumferential locking member is provided on the filter disc (41) to lock the limiting pressure ring (43).

2. The multi-functional filtering machine according to claim 1, characterized by: The positioning structure includes an annular protrusion located near the outer periphery on the filter disc (41). An annular groove (413) is provided on the annular protrusion. A filter cloth (42) is placed on the annular protrusion. The filter cloth (42) covers the disc surface of the filter disc (41) and the annular protrusion, with its edge penetrating into the groove (413). A pressure ring (43) is pressed into the groove (413). The bottom of the pressure ring (43) has a locking part (431) that is adapted to the groove (413).

3. The multi-functional filtering machine according to claim 2, characterized in that: The contact position between the engaging part (431) and the clamping groove (413) is provided with an anti-slip pad, which has both anti-slip and sealing functions.

4. The multi-functional filtering machine according to claim 3, characterized in that: The locking component includes a mounting base (46) installed on the outer periphery of the filter disc (41). Two rocker arms (47) are movably connected to both sides of the mounting base (46). One end of the rocker arm (47) has a limiting part (48). Two rocker arms (410) are attached to the sides of the two sets of rocker arms (47) that are far apart from each other. The rocker arms (410) also has a limiting part. Springs (49) are sleeved on the rods of the rocker arms (47) and the rocker arms (410). The springs (49) are axially limited by the limiting parts (48) and the limiting parts (48). The limiting parts (49) cooperate with the limiting parts (48) to constrain the position of the springs (49). The two ends of the spring (49) are respectively limited by the first limiting part (48) and the second limiting part. One end of the two sets of rocker arms (410) is connected to a hanging rod (411). The end of the hanging rod (411) faces the pressure ring (43) and has an L-shaped hook structure. The pressure ring (43) has the same number of protrusions (45) as the locking member. The surface of the protrusions (45) is provided with hooks (412) that are adapted to the hanging rod (411).

5. The multifunctional filter according to claim 4, characterized in that: The hook (412) is a U-shaped groove for the end of the hanging rod (411) to be engaged and limited.

6. The multi-functional filtering machine according to claim 1, characterized by: A horn-shaped baffle (44) extends from the pressure ring (43). The baffle (44) faces the filter disc (41) and receives the solid and liquid flowing down from the filter cylinder (21). A sealing ring (441) is circumferentially embedded at the end of the baffle (44). The sealing ring (441) has an annular structure and fits tightly against the inner wall of the filter cylinder (21).

7. The multi-functional filtering machine according to claim 1, characterized by: The fastening part includes multiple sets of fixing parts (23) installed on the outer side of the filter cylinder (21). The multiple sets of fixing parts (23) are evenly distributed along the outer circumference of the filter cylinder (21). Each set of fixing parts (23) has two sets of protruding plates that are fixedly connected to the outer wall of the filter cylinder (21). A concave rod (24) is rotatably installed between the two sets of protruding plates. A fastener (25) is threaded to a right angle section of the concave rod (24). A screw hole adapted to the fastener (25) is opened at the corresponding position of the upper cover (26).

8. The multi-functional filtering machine according to claim 1, characterized in that: The contact surfaces of the upper cover (26) and the first docking ring (22) and the lower cover (27) and the second docking ring are all provided with sealing elements.

Images