Filter cartridge for sewage treatment

Abstract

The utility model relates to the technical field of filter cartridges and discloses a filter cartridge for sewage treatment. The filtering structure is arranged in the barrel shell, and the filtering structure is used for removing large pollutants and solid scraps; the airtight part is arranged on the filtering structure and is in sealed connection with the inner cavity wall of the barrel shell, and the airtight part is used for ensuring the sealing performance of the connection position of the filtering structure and the barrel shell; the filter cartridge cover is arranged on the cartridge shell in a threaded connection mode, a water drainage pipe is fixedly installed on the bottom wall of an inner cavity of the cartridge shell, a sewage inlet pipe is fixedly installed on the top wall of an inner cavity of the filter cartridge cover, an arc-shaped check block is fixedly installed on the wall of the inner cavity of the cartridge shell, a groove is formed in the arc-shaped check block, and a water outlet pipe is fixedly installed in the groove. An inner cavity of the groove is movably connected with the filtering structure, and the filtering structure comprises a lower mounting ring. According to the utility model, the filtering structure can be conveniently and quickly disassembled, and the operation is simple and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cartridges, and specifically relates to a filter cartridge for sewage treatment. Background Art

[0002] Sewage treatment refers to the process of treating sewage from cities, industries, rural areas, etc., removing or reducing pollutants therein to meet discharge standards or reuse standards. A filter cartridge is a device for filtering fluids such as water, gas, and oil. Currently, filter cartridges are required for filtering impurities during sewage treatment.

[0003] Currently, filter cartridges play a role in removing larger pollutants and solid debris and reducing the pollution load of subsequent treatment processes during sewage treatment. However, existing filter cartridges often need to be replaced after filtering impurities. The inventor found that: traditional filter cartridge structures mostly adopt an integrated design and cannot be quickly disassembled. Therefore, we propose a filter cartridge for sewage treatment. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a filter cartridge for sewage treatment, which has the advantages of being convenient for quickly disassembling the filtering structure and having simple and fast operation, and solves the problem that traditional filter cartridge structures mostly adopt an integrated design and cannot be quickly disassembled.

[0006] (2) Technical Solutions

[0007] To achieve the above purpose of being convenient for quickly disassembling the filtering structure and having simple and fast operation, the utility model provides the following technical solutions: A filter cartridge for sewage treatment, comprising: a cylinder shell;

[0008] A filtering structure, which is arranged inside the cylinder shell and is used for removing larger pollutants and solid debris;

[0009] An airtight member, which is arranged on the filtering structure and is hermetically connected to the inner cavity wall of the cylinder shell, and is used to ensure the sealing performance at the connection between the filtering structure and the cylinder shell;

[0010] A filter cartridge cover, which is arranged on the cylinder shell in a threaded connection manner.

[0011] As a preferred technical solution of the utility model, a drain pipe is fixedly installed on the inner cavity bottom wall of the cylinder shell, and a sewage inlet pipe is fixedly installed on the inner cavity top wall of the filter cartridge cover, so as to facilitate the sewage to enter the cylinder shell through the inner cavity of the sewage inlet pipe and the filtered sewage to be discharged through the inner cavity of the drain pipe.

[0012] As a preferred technical solution of the present utility model, an arc-shaped stopper is fixedly installed on the inner cavity wall of the cylinder shell. A groove is formed inside the arc-shaped stopper, and the inner cavity of the groove is movably connected to the filtering structure, so as to facilitate the assembly of the filtering structure, and the operation is simple and fast.

[0013] As a preferred technical solution of the present utility model, the filtering structure includes a lower mounting ring. The inner part of the lower mounting ring is movably connected to the airtight member, the outer surface of the lower mounting ring is movably connected to the inner cavity wall of the cylinder shell, a snap ring is fixedly installed at the bottom end of the lower mounting ring, and the outer surface of the snap ring is movably clamped with the inner cavity of the groove. A lower filter screen is fixedly installed on the inner cavity wall of the lower mounting ring;

[0014] A connecting rod is fixedly installed at the top end of the lower mounting ring. One end of the connecting rod away from the lower mounting ring is fixedly installed with an upper mounting ring. The inner part of the upper mounting ring is movably connected to the airtight member, the outer surface of the upper mounting ring is movably connected to the inner cavity wall of the cylinder shell, an upper filter screen is fixedly installed on the inner cavity wall of the upper mounting ring, and a hook is fixedly installed on one side of the upper mounting ring away from the connecting rod. In practical applications, by reversely screwing the filter cartridge cover until the filter cartridge cover is separated from the cylinder shell, and then applying a pulling force to the hook. At this time, the hook drives the upper mounting ring and the lower mounting ring to separate from the inner cavity of the cylinder shell, and the snap ring separates from the inner cavity of the groove until the filtering structure is completely separated from the inner cavity of the cylinder shell. Then, the impurities on the upper filter screen and the lower filter screen are cleaned and the filter screen is cleaned, so as to facilitate the quick disassembly of the filtering structure, and the operation is simple and fast.

[0015] As a preferred technical solution of the present utility model, the diameter of the filter holes on the upper filter screen is larger than the diameter of the filter holes on the lower filter screen, so as to facilitate the removal of pollutants and solid debris of different sizes.

[0016] As a preferred technical solution of the present utility model, a lower sealing groove is formed on the outer surface of the lower mounting ring, and an upper sealing groove is formed on the outer surface of the upper mounting ring. The inner cavities of the lower sealing groove and the upper sealing groove are both movably connected to the airtight member, so as to facilitate the assembly of the airtight member.

[0017] As a preferred technical solution of the present utility model, the airtight member includes a lower sealing ring and an upper sealing ring. The lower sealing ring is arranged in the inner cavity of the lower sealing groove and is hermetically connected to the inner cavity wall of the cylinder shell;

[0018] The upper sealing ring is arranged on the upper sealing groove and is hermetically connected to the inner cavity wall of the cylinder shell, so as to ensure the sealing performance at the connection between the filtering structure and the cylinder shell.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a filter cartridge for sewage treatment, which has the following beneficial effects:

[0021] 1. For this filter cartridge for sewage treatment, by rotating the reverse spiral filter cartridge cover until the filter cartridge cover is separated from the cartridge shell, and then applying a pulling force to the hook, at this time, the hook drives the upper mounting ring and the lower mounting ring to be separated from the inner cavity of the cartridge shell, and the snap ring is separated from the inner cavity of the groove until the filtering structure is completely separated from the inner cavity of the cartridge shell, and then the impurities on the upper filter screen and the lower filter screen are cleaned and cleaned, so as to facilitate the rapid disassembly of the filtering structure, and the operation is simple and fast.

[0022] 2. For this filter cartridge for sewage treatment, by assembling the airtight member onto the filtering structure, at this time, the lower sealing ring is sleeved in the lower sealing groove, and the upper sealing ring is sleeved in the upper sealing groove, and then the filtering structure is assembled into the cartridge shell. At this time, the snap ring is snap-fitted in the inner cavity of the groove, and both the lower mounting ring and the upper mounting ring are snap-fitted in the inner cavity of the cartridge shell, and the lower sealing ring and the upper sealing ring are in close contact with the inner cavity wall of the cartridge shell to ensure the sealing performance at the connection between the filtering structure and the cartridge shell. Then, the filter cartridge cover is assembled onto the cartridge shell in a threaded connection manner. When sewage enters the cartridge shell through the inner cavity of the sewage inlet pipe and is discharged through the inner cavity of the drain pipe, during this period, the filtering structure plays a role in removing larger pollutants and solid debris and reducing the pollution load of subsequent treatment processes, so as to facilitate the removal of larger pollutants and solid debris and ensure the sealing performance at the connection between the filtering structure and the cartridge shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 is a schematic diagram of the separation of the filter cartridge cover in the overall structure of the utility model;

[0025] Figure 3 is a schematic diagram of the inside of the cartridge shell in the overall structure of the utility model;

[0026] Figure 4 is a schematic diagram of the decomposition of the filtering structure and the seal in the overall structure of the utility model.

[0027] In the figure: 1. Cartridge shell; 11. Arc-shaped stopper; 12. Groove; 2. Filtering structure; 21. Lower mounting ring; 211. Lower sealing groove; 22. Snap ring; 23. Lower filter screen; 24. Connecting rod; 25. Upper mounting ring; 251. Upper sealing groove; 26. Upper filter screen; 27. Hook; 31. Lower sealing ring; 32. Upper sealing ring; 4. Filter cartridge cover; 5. Drain pipe; 6. Sewage inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0029] Referring to Figures 1-4 , a filter cartridge for sewage treatment is provided, including: a cylinder shell 1;

[0030] A filtering structure 2, the filtering structure 2 is arranged inside the cylinder shell 1, and the filtering structure 2 is used to remove larger pollutants and solid debris;

[0031] An airtight member, the airtight member is arranged on the filtering structure 2 and is hermetically connected to the inner cavity wall of the cylinder shell 1, and the airtight member is used to ensure the sealing performance at the connection between the filtering structure 2 and the cylinder shell 1;

[0032] A filter cartridge cover 4, the filter cartridge cover 4 is arranged on the cylinder shell 1 in a threaded connection manner.

[0033] A drain pipe 5 is fixedly installed on the inner cavity bottom wall of the cylinder shell 1, and a sewage inlet pipe 6 is fixedly installed on the inner cavity top wall of the filter cartridge cover 4.

[0034] An arc - shaped stopper 11 is fixedly installed on the inner cavity wall of the cylinder shell 1, a groove 12 is opened inside the arc - shaped stopper 11, and the inner cavity of the groove 12 is movably connected to the filtering structure 2.

[0035] The filtering structure 2 includes a lower mounting ring 21, the inside of the lower mounting ring 21 is movably connected to the airtight member, the outer surface of the lower mounting ring 21 is movably connected to the inner cavity wall of the cylinder shell 1, a snap ring 22 is fixedly installed at the bottom end of the lower mounting ring 21, the outer surface of the snap ring 22 is movably clamped with the inner cavity of the groove 12, and a lower filter screen 23 is fixedly installed on the inner cavity wall of the lower mounting ring 21;

[0036] A connecting rod 24 is fixedly installed at the top end of the lower mounting ring 21, an upper mounting ring 25 is fixedly installed at the end of the connecting rod 24 away from the lower mounting ring 21, the inside of the upper mounting ring 25 is movably connected to the airtight member, the outer surface of the upper mounting ring 25 is movably connected to the inner cavity wall of the cylinder shell 1, an upper filter screen 26 is fixedly installed on the inner cavity wall of the upper mounting ring 25, and a hook 27 is fixedly installed on one side of the upper mounting ring 25 away from the connecting rod 24.

[0037] The diameter of the filter holes on the upper filter screen 26 is larger than the diameter of the filter holes on the lower filter screen 23.

[0038] A lower sealing groove 211 is opened on the outer surface of the lower mounting ring 21, an upper sealing groove 251 is opened on the outer surface of the upper mounting ring 25, and the inner cavities of the lower sealing groove 211 and the upper sealing groove 251 are both movably connected to the airtight member.

[0039] The airtight component includes a lower sealing ring 31 and an upper sealing ring 32. The lower sealing ring 31 is arranged on the inner cavity of the lower sealing groove 211 and is hermetically connected to the inner cavity wall of the cylinder shell 1.

[0040] The upper sealing ring 32 is arranged on the upper sealing groove 251 and is hermetically connected to the inner cavity wall of the cylinder shell 1.

[0041] In actual use, by assembling the airtight component onto the filtering structure 2, at this time, the lower sealing ring 31 is sleeved in the lower sealing groove 211, and the upper sealing ring 32 is sleeved in the upper sealing groove 251. Then, the filtering structure 2 is assembled into the cylinder shell 1. At this time, the snap ring 22 is clamped in the inner cavity of the groove 12, and both the lower mounting ring 21 and the upper mounting ring 25 are clamped in the inner cavity of the cylinder shell 1. Moreover, the lower sealing ring 31 and the upper sealing ring 32 are in close contact with the inner cavity wall of the cylinder shell 1 to ensure the sealing performance at the connection between the filtering structure 2 and the cylinder shell 1. Then, the filter cartridge cover 4 is assembled onto the cylinder shell 1 in a threaded connection manner. When sewage enters the cylinder shell 1 through the inner cavity of the sewage inlet pipe 6 and is then discharged through the inner cavity of the drain pipe 5, during this period, the filtering structure 2 plays a role in removing larger pollutants and solid debris and reducing the pollution load of subsequent treatment processes, thus facilitating the removal of larger pollutants and solid debris and ensuring the sealing performance at the connection between the filtering structure 2 and the cylinder shell 1.

[0042] When it is necessary to disassemble the filtering structure 2, by screwing the filter cartridge cover 4 in the reverse direction until the filter cartridge cover 4 is separated from the cylinder shell 1. Then, a pulling force is applied to the hook 27. At this time, the hook 27 drives the upper mounting ring 25 and the lower mounting ring 21 to separate from the inner cavity of the cylinder shell 1, and the snap ring 22 separates from the inner cavity of the groove 12 until the filtering structure 2 is completely separated from the inner cavity of the cylinder shell 1. Then, the impurities on the upper filter screen 26 and the lower filter screen 23 are cleaned and the filter screen is cleaned, thus facilitating the rapid disassembly of the filtering structure 2, and the operation is simple and fast. This device is not only convenient for the rapid disassembly of the filtering structure 2, but also the operation is simple and fast.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A filter cartridge for sewage treatment, characterized in that: include: A cartridge shell (1); A filter structure (2), the filter structure (2) being arranged in the cartridge shell (1), the filter structure (2) being used to remove larger pollutants and solid debris; An airtight member, the airtight member being arranged on the filtering structure (2) and being sealingly connected to the inner cavity wall of the cartridge shell (1), the airtight member being used to ensure the sealing performance of the connection between the filtering structure (2) and the cartridge shell (1); A filter cartridge cover (4), wherein the filter cartridge cover (4) is arranged on the cartridge shell (1) in a threaded connection manner.

2. A filter cartridge for sewage treatment according to claim 1, characterized in that: A drainage pipe (5) is fixedly mounted on the bottom wall of the inner cavity of the cartridge shell (1), and a sewage inlet pipe (6) is fixedly mounted on the top wall of the inner cavity of the filter cartridge cover (4).

3. A filter cartridge for sewage treatment according to claim 1, characterized in that: An arc-shaped stopper (11) is fixedly mounted on the inner cavity wall of the cylinder shell (1), a groove (12) is provided inside the arc-shaped stopper (11), and the inner cavity of the groove (12) is movably connected to the filtering structure (2).

4. A filter cartridge for sewage treatment according to claim 3, characterized in that: The filtering structure (2) comprises a lower mounting ring (21), the interior of the lower mounting ring (21) is movably connected to the airtight component, the outer surface of the lower mounting ring (21) is movably connected to the inner cavity wall of the cylinder shell (1), a clamping ring (22) is fixedly mounted on the bottom end of the lower mounting ring (21), the outer surface of the clamping ring (22) is movably engaged with the inner cavity of the groove (12), and a lower filter screen (23) is fixedly mounted on the inner cavity wall of the lower mounting ring (21); A connecting rod (24) is fixedly mounted on the top end of the lower mounting ring (21); an upper mounting ring (25) is fixedly mounted on the end of the connecting rod (24) away from the lower mounting ring (21); the interior of the upper mounting ring (25) is movably connected to the airtight component; the outer surface of the upper mounting ring (25) is movably connected to the inner cavity wall of the cylinder shell (1); an upper filter screen (26) is fixedly mounted on the inner cavity wall of the upper mounting ring (25); and a curved hook (27) is fixedly mounted on the side of the upper mounting ring (25) away from the connecting rod (24).

5. A filter cartridge for sewage treatment according to claim 4, characterized in that: The diameter of the filter holes on the upper filter screen (26) is greater than the diameter of the filter holes on the lower filter screen (23).

6. A filter cartridge for sewage treatment according to claim 4, characterized in that: The outer surface of the lower mounting ring (21) is provided with a lower sealing groove (211), and the outer surface of the upper mounting ring (25) is provided with an upper sealing groove (251). The inner cavities of the lower sealing groove (211) and the upper sealing groove (251) are movably connected to the airtight component.

7. A filter cartridge for sewage treatment according to claim 6, characterized in that: The airtight member comprises a lower sealing ring (31) and an upper sealing ring (32); the lower sealing ring (31) is arranged on the inner cavity of the lower sealing groove (211) and is sealingly connected to the inner cavity wall of the cylinder shell (1); The upper sealing ring (32) is arranged on the upper sealing groove (251) and is sealingly connected to the inner cavity wall of the cylinder shell (1).

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