A fish waste filter

Abstract

The utility model provides a kind of fish manure filter, including shell and inner shelf, the bottom inner side of shell is equipped with the column that extends upwards, first flow passage is formed in the inside of column, the bottom of shell is opened with the water inlet structure that communicates column inside, inner shelf is fixed in the inside of shell, annular filter screen is equipped with being set around the outside of column on inner shelf, second flow passage is formed between annular filter screen and the outside of column, the upper end of column and inner shelf form water area, the bottom of inner shelf and the bottom of shell form retention area, retention area is communicated with second flow passage, third flow passage is formed between annular filter screen and the inner wall of shell, the middle part of inner shelf is equipped with water outlet that is communicated with third flow passage.Filter can be the large particle impurity in water, especially fish manure, effectively retained and collected in retention area before entering main filtration system.This fundamentally avoids fish manure and other large particles to directly adhere on the filter cotton of main filtration system, thereby significantly prevents the rapid plugging problem of main filter cotton.

Description

Technical Field

[0001] This utility model relates to the field of aquarium supplies, and in particular to a fish waste filter. Background Technology

[0002] Common aquarium physical filters on the market mainly rely on a water pump to power the water flow through filter media such as filter floss and bio-foam, using the filter media's interception effect to trap solid particles. However, feces and impurities directly adhere to the surface of the filter floss, quickly causing blockage and increasing water flow resistance. This not only reduces filtration efficiency but also increases the load on the water pump, and may even burn out the water pump due to obstructed water flow.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems. We provide a fish waste filter, which can trap large particles of impurities in the water and effectively prevent the filter cotton from clogging.

[0005] To achieve the above objectives, this utility model provides a fish waste filter, which includes an outer shell and an inner frame. The bottom inner side of the outer shell is provided with an upwardly extending column, and a first flow channel is formed inside the column. The bottom of the outer shell has a water inlet structure that communicates with the inside of the column. The inner frame is fixed inside the outer shell. The inner frame is provided with an annular filter screen arranged around the outside of the column. A second flow channel is formed between the annular filter screen and the outside of the column. A water passage area is formed between the upper end of the column and the inner frame. A interception area is formed between the bottom of the inner frame and the bottom of the outer shell. The interception area communicates with the second flow channel. A third flow channel is formed between the annular filter screen and the inner wall of the outer shell. The middle part of the inner frame is provided with a water outlet that communicates with the third flow channel.

[0006] In one or more embodiments, the outer shell is provided with a plurality of protruding ribs on the interception area, the protruding ribs being used to support the bottom of the inner frame.

[0007] In one or more embodiments, the inner frame includes a lower shell, an annular filter screen, and an upper shell, with the two ends of the annular filter screen connected to the lower shell and the upper shell respectively, and the annular filter screen being detachably connected to the lower shell and the upper shell.

[0008] In one or more embodiments, the lower shell is provided with a first sleeve portion, and the upper shell is provided with a second sleeve portion. The inner side of the first sleeve portion is provided with a lower limiting step, and the first sleeve portion is sleeved on the outer side of the lower end of the annular filter screen, with the bottom of the annular filter screen abutting against the lower limiting step. The outer side of the second sleeve portion is provided with an upper limiting step, and the upper end of the annular filter screen is sleeved on the second sleeve portion, with the top of the annular filter screen abutting against the upper limiting step.

[0009] In one or more embodiments, the upper end face of the upper shell is provided with an upwardly extending annular wall, the outlet is formed inside the annular wall, and the upper shell is provided with a water passage, which connects the third flow channel and the outlet.

[0010] In one or more embodiments, the water inlet structure is in the form of a grid.

[0011] In one or more embodiments, the column and the outer shell are integrally injection molded.

[0012] Compared with the prior art, the advantages of this invention are: this filter can effectively intercept and collect large particulate impurities in the water, especially fish feces, in the interception area before they enter the main filtration system. This fundamentally avoids large particles such as fish feces from directly adhering to the filter cotton of the main filtration system, thus significantly preventing the problem of rapid clogging of the main filter cotton. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the pre-filter across the central axis in this embodiment. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] See appendix Figure 1 This application provides a fish waste filter, which includes an outer shell 1 and an inner frame. The bottom inner side of the outer shell 1 is provided with an upwardly extending column 2, and a first flow channel 3 is formed inside the column 2. The bottom of the outer shell 1 has a water inlet structure 4 that communicates with the inside of the column 2. The inner frame is fixed inside the outer shell 1. The inner frame is provided with an annular filter screen 5 arranged around the outside of the column 2. A second flow channel is formed between the annular filter screen 5 and the outside of the column 2. A water passage area is formed between the upper end of the column 2 and the inner frame. A interception area 6 is formed between the bottom of the inner frame and the bottom of the outer shell 1. The interception area 6 communicates with the second flow channel. A third flow channel 7 is formed between the annular filter screen 5 and the inner wall of the outer shell 1. The middle part of the inner frame is provided with a water outlet 8 that communicates with the third flow channel 7. Water entering from the inlet structure 4 first enters the interior of the column 2, then flows through the water passage area into the second flow channel. The water passes through the annular filter screen 5 and then enters the third flow channel 7 before being discharged from the outlet 8. Feces or particulate matter in the water are intercepted by the annular filter screen 5 and enter the interception area 6 under the action of gravity. This design can effectively separate and collect most of the solid particles before the water flows into the main filtration system, thereby fundamentally avoiding the rapid clogging of the main filter cotton, reducing the water pump load, improving the efficiency and stability of the entire filtration system, and extending the filter media life.

[0016] The outer shell 1 has several raised ribs 9 on the interception area 6. The raised ribs 9 support the bottom of the inner frame and maintain a certain distance between the bottom of the inner frame and the bottom surface of the outer shell 1. This distance is the key to the effective formation and function of the "interception area" in collecting dirt. At the same time, the raised ribs also prevent the inner frame from completely fitting against the bottom and blocking the water inlet path, ensuring smooth water flow.

[0017] The inner frame includes a lower shell 10, an annular filter screen 5, and an upper shell 11. The two ends of the annular filter screen 5 are connected to the lower shell 10 and the upper shell 11, respectively, and the annular filter screen 5 is detachably connected to the lower shell 10 and the upper shell 11. When the trapped impurities need to be cleaned or the annular filter screen 5 needs to be replaced, the user can easily remove the inner frame from the outer shell 1 and further disassemble it, thereby thoroughly cleaning the annular filter screen 5 and all components, ensuring the continuous, efficient operation and hygiene of the filter.

[0018] The lower shell 10 is provided with a first sleeve portion 12, and the upper shell 11 is provided with a second sleeve portion 13. The inner side of the first sleeve portion 12 is provided with a lower limiting step 14. The first sleeve portion 12 is sleeved on the outer side of the lower end of the annular filter screen 5, and the bottom of the annular filter screen 5 abuts against the lower limiting step 14. The outer side of the second sleeve portion 13 is provided with an upper limiting step 15. The upper end of the annular filter screen 5 is sleeved on the second sleeve portion 13, and the top of the annular filter screen 5 abuts against the upper limiting step 15. This structure achieves reliable and precise positioning and sealing between the annular filter screen 5 and the upper and lower shells.

[0019] The upper shell 11 has an upwardly extending annular wall 16 on its upper end surface, and the outlet 8 is formed inside the annular wall 16. The upper shell 11 has a water inlet 17, which connects the third flow channel 7 and the outlet 8. This structure can guide and collect the water output from the third flow channel 7, so as to concentrate the water to the main filtration system for filtration.

[0020] The water inlet structure 4 is grid-shaped, which serves to intercept foreign objects and prevent fish, aquatic plants, or stones from entering.

[0021] The column 2 and the outer shell 1 are integrally injection molded. This structure enhances the overall structural strength and sealing of the product, avoiding the risk of water leakage that may result from separate assembly.

[0022] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A fish waste filter, characterized in that: The device includes an outer shell (1) and an inner frame. The bottom inner side of the outer shell (1) is provided with an upwardly extending column (2). The inside of the column (2) forms a first flow channel (3). The bottom of the outer shell (1) has a water inlet structure (4) that connects to the inside of the column (2). The inner frame is fixed inside the outer shell (1). The inner frame is provided with an annular filter (5) arranged around the outside of the column (2). The annular filter (5) and the outside of the column (2) form a second flow channel. The upper end of the column (2) and the inner frame form a water passage area. The bottom of the inner frame and the bottom of the outer shell (1) form a interception area (6). The interception area (6) is connected to the second flow channel. The annular filter (5) and the inner wall of the outer shell (1) form a third flow channel (7). The middle part of the inner frame is provided with a water outlet (8) that connects to the third flow channel (7).

2. A fish waste filter according to claim 1, characterized in that: The outer shell (1) is provided with several protruding ribs (9) on the interception area (6), and the protruding ribs (9) are used to support the bottom of the inner frame.

3. A fish waste filter according to claim 1, characterized in that: The inner frame includes a lower shell (10), an annular filter (5) and an upper shell (11). The two ends of the annular filter (5) are respectively connected to the lower shell (10) and the upper shell (11), and the annular filter (5) is detachably connected to the lower shell (10) and the upper shell (11).

4. A fish waste filter according to claim 3, characterized in that: The lower shell (10) is provided with a first sleeve part (12), and the upper shell (11) is provided with a second sleeve part (13). The inner side of the first sleeve part (12) is provided with a lower limit step (14). The first sleeve part (12) is sleeved on the outer side of the lower end of the annular filter (5), and the bottom of the annular filter (5) abuts against the lower limit step (14). The outer side of the second sleeve part (13) is provided with an upper limit step (15). The upper end of the annular filter (5) is sleeved on the second sleeve part (13), and the top of the annular filter (5) abuts against the upper limit step (15).

5. A fish waste filter according to claim 3 or 4, characterized in that: The upper shell (11) has an upwardly extending annular wall (16) on its upper end surface, and the outlet (8) is formed inside the annular wall (16). The upper shell (11) has a water inlet (17), which connects the third flow channel (7) and the outlet (8).

6. A fish waste filter according to claim 1, characterized in that: The water inlet structure (4) is in the shape of a grid.

7. A fish waste filter according to claim 1, characterized in that: The column (2) and the outer shell (1) are integrally injection molded.

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