Scattering type filter disc

Abstract

The utility model discloses a scattering type filter disc, which belongs to the technical field of filter discs and comprises a flow guide inner ring, a support bottom frame is clamped on the outer side of the flow guide inner ring, a filter screen is arranged at the bottom of an inner cavity of the support bottom frame, a limit frame is mounted at the upper end of the support bottom frame and comprises an outer circular ring and an inner circular ring, and the outer circular ring is sleeved on the inner circular ring. The supporting bottom frame and the limiting frame are installed and supported through the flow guide inner ring, the filter screen is fixedly clamped between the supporting bottom frame and the jade limiting frame, stability of the filter screen is ensured, meanwhile, the limiting frame is provided with the arc-shaped flow guide plate used for flow guide, and the arc-shaped flow guide plate used for flow guide is arranged on the limiting frame. Filtering liquid can be conveniently diffused to the filter screen from the inner side of the flow guide inner ring along the flow guide holes, the outer circular ring on the limiting frame is in threaded connection with the supporting bottom frame, the filter screen can be conveniently and rapidly disassembled, assembled and replaced, when the filter screen is damaged, only the filter screen needs to be replaced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter discs, in particular to a scattering filter disc. Background Art

[0002] Filters are essential components for conveying media, typically installed at the inlet of pressure reducing valves, pressure relief valves, constant-level valves, and other filter equipment. They consist of a cylinder, a stainless steel filter screen, a sewage discharge unit, a transmission mechanism, and an electrical control unit. Impurities are trapped in the water passing through the filter screen. When cleaning is necessary, simply remove the removable filter cartridge, treat it, and reinstall it. This makes use and maintenance extremely convenient. The filter disc is a crucial component of the filter.

[0003] In the prior art, a Chinese utility model with authorization publication number CN218686941U discloses a scattering filter disc comprising a guide ring, a flow plate, and a filter layer. The guide ring is a split structure, consisting of a ring body and a cover plate. A support block is provided on the inner ring, and a cover plate is provided on the support block. An annular flow plate is provided on the outer side of the guide ring, and filter layers are provided on both sides of the flow plate. Guide blocks are provided on the surface of the flow plate, and the guide blocks are arranged in a scattered pattern with the center of the flow plate as the reference. Compared with previous structures, this utility model has higher overall strength and higher filtration efficiency.

[0004] The filter mesh in the filter disc is a consumable material. In the above technical solution, the filter layer is fixed to the outside of the guide ring by welding. If the filter layer is damaged, it cannot be replaced and the entire filter disc can only be replaced, which increases the equipment maintenance cost. Utility Model Content

[0005] The purpose of the present invention is to provide a scattering filter disc, which is designed to be split, so that the filter disc can be easily assembled and a damaged filter screen can be replaced, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a scattering filter disc, comprising an inner guide ring, the outer side of the inner guide ring is clamped with a supporting bottom frame, the bottom of the inner cavity of the supporting bottom frame is padded with a filter net, the upper end of the supporting bottom frame is installed with a limiting frame, the limiting frame comprises an outer ring and an inner ring, an outward-scattering arc-shaped guide plate is connected between the outer ring and the inner ring, the bottom of the arc-shaped guide plate is attached to the surface of the filter net, and a plurality of groups of guide holes are provided on the inner side of the inner guide ring, the guide holes extend outward along the inner guide ring and are connected to the space between the two groups of arc-shaped guide plates.

[0007] Preferably, the guide inner ring includes a support seat and a pressure ring clamped on the top of the support seat, the support bottom frame and the inner ring are both sleeved on the outside of the support seat, and the guide hole is opened on the support seat.

[0008] Preferably, screw threads are provided on the outer side of the outer ring, and the outer ring is threadedly connected to the supporting bottom frame through the screw threads.

[0009] Preferably, a clamping groove is provided at the edge of the top of the support seat and the inner ring, and a fixing ring is fixed to the bottom of the pressure ring, and the fixing ring is clamped in the inner cavity of the clamping groove.

[0010] Preferably, a limiting groove is provided in the inner cavity of the clamping slot, a limiting block is fixed on the outer side of the fixing ring, and the limiting block is clamped in the inner cavity of the limiting groove.

[0011] Preferably, a groove is provided at the bottom of the support seat, the inner cavity of the groove is filled with a sealing ring, and a positioning ring is extended upward from the top of the pressure ring for use in conjunction with the groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model supports the support bottom frame and the limit frame through the guide inner ring, and fixes the filter screen between the support bottom frame and the limit frame to ensure the stability of the filter screen. At the same time, the limit frame is provided with an arc-shaped guide plate for diversion, which facilitates the diffusion of the filtered liquid from the inner side of the guide inner ring along the guide hole to the filter screen. The outer ring on the limit frame is threadedly connected to the support bottom frame, so the filter screen can be quickly and easily disassembled and replaced. When the filter screen is damaged, it only needs to be replaced, which reduces maintenance costs.

[0014] 2. The utility model facilitates the positioning of the stacked filter discs by clamping the positioning ring with the groove. At the same time, the sealing ring can seal the upper and lower filter discs to prevent the filtered liquid from penetrating through the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the utility model;

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the guide inner ring of the utility model;

[0018] Figure 4 This is a schematic diagram of the split three-dimensional structure of the inner guide ring of the utility model;

[0019] Figure 5It is a schematic diagram of the three-dimensional structure of the limiting frame of the utility model.

[0020] Numbers in the figure: 1. Inner guide ring; 101. Support seat; 102. Pressure ring; 2. Support bottom frame; 3. Filter screen; 4. Limit frame; 41. Outer ring; 42. Inner ring; 43. Arc guide plate; 5. Guide hole; 6. Screw thread; 7. Slot; 8. Fixing ring; 9. Limit groove; 10. Limit block; 11. Groove; 12. Sealing ring; 13. Positioning ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figures 1 to 5 The scattering filter disc shown includes an inner guide ring 1, a support bottom frame 2 is clamped to the outside of the inner guide ring 1, a filter screen 3 is provided at the bottom of the inner cavity of the support bottom frame 2, and a limit frame 4 is installed on the upper end of the support bottom frame 2. The limit frame 4 includes an outer ring 41 and an inner ring 42. An outward-scattering arc-shaped guide plate 43 is connected between the outer ring 41 and the inner ring 42. The bottom of the arc-shaped guide plate 43 is in contact with the surface of the filter screen 3. A plurality of groups of guide holes 5 are provided on the inner side of the inner guide ring 1. The guide holes 5 extend outward along the inner guide ring 1 and communicate with the space between the two groups of arc-shaped guide plates 43.

[0023] The support bottom frame 2 and the limit frame 4 are installed and supported by the guide inner ring 1, and the filter screen 3 is fixedly clamped between the support bottom frame 2 and the limit frame 4 to ensure the stability of the filter screen 3. At the same time, an arc-shaped guide plate 43 for diversion is provided on the limit frame 4, which facilitates the diffusion of the filtered liquid from the inner side of the guide inner ring 1 along the guide hole 5 to the filter screen 3. The outer ring 41 on the limit frame 4 is threadedly connected to the support bottom frame 2, so that the filter screen 3 can be quickly and easily disassembled and replaced. When the filter screen 3 is damaged, it only needs to be replaced, thereby reducing maintenance costs.

[0024] The guide inner ring 1 includes a support seat 101 and a pressure ring 102 clamped on the top of the support seat 101. The support bottom frame 2 and the inner ring 42 are both sleeved on the outside of the support seat 101. The guide hole 5 is opened on the support seat 101. By setting the structure of the guide inner ring 1, it is convenient to use the pressure ring 102 and the support seat 101 to limit and fix the support bottom frame 2 and the limit frame 4, ensuring that the filter screen 3 is installed stably.

[0025] A screw thread 6 is provided on the outside of the outer ring 41, and the outer ring 41 is threadedly connected to the supporting bottom frame 2 through the screw thread 6. The setting of the screw thread 6 makes it convenient to connect the outer ring 41 to the supporting bottom frame 2, and at the same time restricts the filter screen 3 between the supporting bottom frame 2 and the limit frame 4 to prevent the filter screen 3 from being deformed due to impact pressure when the fluid flows through.

[0026] A card slot 7 is provided at the edge of the top of the support seat 101 and the inner ring 42, and a fixing ring 8 is fixed to the bottom of the pressure ring 102, and the fixing ring 8 is clamped in the inner cavity of the card slot 7. By clamping the fixing ring 8 on the pressure ring 102 with the card slot 7 on the top of the support seat 101 and the inner ring 42, not only can the pressure ring 102 and the support seat 101 be connected, but also the limit frame 4 can be stably installed on the outside of the guide inner ring 1, and the gap between the limit frame 4 and the support seat 101 can be filled.

[0027] A limiting groove 9 is provided in the inner cavity of the card slot 7, and a limiting block 10 is fixed on the outer side of the fixing ring 8. The limiting block 10 is clamped in the inner cavity of the limiting groove 9. By clamping the limiting block 10 with the limiting groove 9, the limiting frame 4 and the support seat 101 are limited, so that the guide hole 5 on the support seat 101 corresponds one to one with the space between the arc-shaped guide plate 43, and the arc-shaped guide plate 43 is used to guide the fluid.

[0028] A groove 11 is provided at the bottom of the support seat 101, and the inner cavity of the groove 11 is filled with a sealing ring 12. A positioning ring 13 used in conjunction with the groove 11 extends upward from the top of the pressure ring 102. The positioning ring 13 is engaged with the groove 11 through the positioning ring 13, which facilitates the positioning of the upper and lower stacked filter discs. At the same time, the sealing ring 12 can seal the upper and lower filter discs to prevent the filtered liquid from penetrating from the gaps.

[0029] During specific use, the support bottom frame 2 is put on the outside of the support seat 101, and then the filter screen 3 is padded on the inside of the support bottom frame, and then the limit frame 4 is threadedly installed in the support bottom frame 2 to ensure the stability of the filter screen 3, and then the inner ring 42 is aligned with the limit groove 9 on the support seat 101, and then the pressure ring 102 is placed on the top of the support seat 101, and the fixing ring 8 is clamped into the clamping groove 7. At the same time, the limit block 10 is aligned with the limit groove 9, so that the pressure ring 102 is clamped on the top of the support seat 101 to complete the assembly of the filter disc, and then multiple groups of filter discs are stacked up and down, and the positioning rings 13 on the top of the upper and lower pressure rings 102 are clamped with the grooves 11 at the bottom of the support seat 101 to complete the assembly of multiple groups of filter discs.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scattering filter disc, comprising an inner guide ring (1), characterized in that: The outer side of the guide inner ring (1) is clamped with a supporting bottom frame (2), the bottom of the inner cavity of the supporting bottom frame (2) is padded with a filter screen (3), and the upper end of the supporting bottom frame (2) is installed with a limit frame (4), and the limit frame (4) includes an outer ring (41) and an inner ring (42), and an outward-scattering arc guide plate (43) is connected between the outer ring (41) and the inner ring (42), and the bottom of the arc guide plate (43) is attached to the surface of the filter screen (3), and a plurality of groups of guide holes (5) are provided on the inner side of the guide inner ring (1), and the guide holes (5) extend outward along the guide inner ring (1) and are connected to the space between the two groups of arc guide plates (43).

2. The scattering filter disc according to claim 1, characterized in that: The guide inner ring (1) comprises a support seat (101) and a pressure ring (102) clamped on the top of the support seat (101); the support bottom frame (2) and the inner ring (42) are both sleeved on the outside of the support seat (101); and the guide hole (5) is opened on the support seat (101).

3. The scattering filter disc according to claim 1, characterized in that: The outer side of the outer ring (41) is provided with screw threads (6), and the outer ring (41) is threadedly connected to the supporting bottom frame (2) via the screw threads (6).

4. The scattering filter disc according to claim 2, characterized in that: A clamping groove (7) is provided at the edge of the top of the support seat (101) and the inner ring (42), and a fixing ring (8) is fixed to the bottom of the pressure ring (102), and the fixing ring (8) is clamped in the inner cavity of the clamping groove (7).

5. The scattering filter disc according to claim 4, characterized in that: The inner cavity of the clamping slot (7) is provided with a limiting slot (9), and a limiting block (10) is fixed on the outer side of the fixing ring (8), and the limiting block (10) is clamped in the inner cavity of the limiting slot (9).

6. The scattering filter disc according to claim 2, characterized in that: The bottom of the support seat (101) is provided with a groove (11), the inner cavity of the groove (11) is filled with a sealing ring (12), and the top of the pressure ring (102) extends upward to form a positioning ring (13) used in conjunction with the groove (11).

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