A fish tank fish waste filter

Abstract

The utility model provides a fish tank is with fish manure filter, its special include casing, the opposite side of casing is equipped with water inlet end and water outlet end respectively, is equipped with inner shell and cylindrical filter screen in the casing, the inner shell is towards water outlet end direction opening setting, there is first water area between the outside wall of inner shell and casing, the inner shell is equipped with the sleeve joint portion, the both ends of cylindrical filter screen are connected sleeve joint portion and water outlet end respectively, the bottom surface between sleeve joint portion and inner shell forms second water area, sleeve joint portion connects second water area with cylindrical filter screen inside. When the cylindrical filter screen is gradually blocked because of the solid particles such as fish manure are intercepted, water flow still can pass through second water area and enter the water outlet end through this passageway of cylindrical filter screen. This ensures that even if the filter screen is blocked, the water pump can still pump water, avoids the burn risk caused by idling or excessive load, greatly improves the safety and service life of equipment operation.

Description

Technical Field

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

[0002] Common aquarium physical filters on the market primarily rely on a water pump to power the flow of water through filter media such as filter floss and bio-sponge, which trap solid particles. When filtering aquarium water, a pre-filter is typically used to trap feces and solid particles in the water, preventing them from entering the pump and subsequent filter cartridges. This pre-filter is usually a filter screen. However, as the filter screen traps more and more feces, it begins to clog, causing the water pump to pump water poorly. If the user does not clean the filter screen in time, the water pump can easily burn out.

[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 for aquariums that can maintain water intake even when the filter screen is clogged, thus preventing the water pump from burning out.

[0005] To achieve the above objectives, this utility model provides a fish waste filter for aquariums, which includes a shell, with an inlet and an outlet on two opposite sides of the shell, an inner shell and a cylindrical filter screen inside the shell, the inner shell opening towards the outlet, a first water passage area between the outer wall of the inner shell and the shell, a sleeve part inside the inner shell, the two ends of the cylindrical filter screen being connected to the sleeve part and the outlet respectively, a second water passage area being formed between the sleeve part and the bottom surface of the inner shell, and the sleeve part connecting the second water passage area and the interior of the cylindrical filter screen.

[0006] In one or more embodiments, the sleeve portion has a base plate, the side of which extends toward the inner wall of the inner shell, and a water-passing gap is formed between the side of the base plate and the inner wall of the inner shell.

[0007] In one or more embodiments, the inner shell is provided with a positioning post, and the bottom plate is provided with a positioning hole that mates with the positioning post.

[0008] In one or more embodiments, the outer side of the sleeve portion is provided with a plurality of first reinforcing ribs, the plurality of first reinforcing ribs being evenly distributed circumferentially, and the first reinforcing ribs being closely attached to the outer side surface of the cylindrical filter screen.

[0009] In one or more embodiments, the water outlet is provided with an annular wall, and the inner side of the annular wall is provided with a plurality of second reinforcing ribs. The plurality of second reinforcing ribs are evenly distributed circumferentially, and a groove for connecting the cylindrical filter screen is formed between the second reinforcing ribs and the annular wall.

[0010] In one or more embodiments, the housing includes a front shell and a rear shell, which are assembled together by snap-fit. The rear shell is provided with a slot, and the inner shell is provided with a snap-fit ​​part that connects to the slot.

[0011] Compared with the prior art, the advantages of this invention are: when the cylindrical filter screen gradually becomes clogged due to the trapping of solid particles such as fish feces, water can still flow through the second water passage area into the cylindrical filter screen and into the outlet. This ensures that even if the filter screen is clogged, the water pump can still draw water, avoiding the risk of burnout due to idling or excessive load, and greatly improving the safety and service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a diagram showing the water flow direction when the cylindrical filter screen is not clogged and is filtering normally in this embodiment; Figure 2 This is a diagram showing the water flow direction when the cylindrical filter screen is clogged in this embodiment; Figure 3 This is an exploded view of the filter in this embodiment (filter screen is hidden); Figure 4 for Figure 3 A schematic diagram of the structure from another angle. Detailed Implementation

[0013] 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.

[0014] See appendix Figure 1-4 This application provides a fish waste filter for aquariums, comprising a housing with an inlet end 1 and an outlet end 2 on two opposite sides. Inside the housing is an inner shell 3 and a cylindrical filter screen 4. The inner shell 3 is open towards the outlet end 2. A first water passage area is formed between the outer wall of the inner shell 3 and the housing. A sleeve part 5 is provided inside the inner shell 3. Both ends of the cylindrical filter screen 4 are connected to the sleeve part 5 and the outlet end 2, respectively. A second water passage area is formed between the sleeve part 5 and the bottom surface of the inner shell 3, connecting the second water passage area to the interior of the cylindrical filter screen 4. The advantage of this design is that when the cylindrical filter screen 4 becomes clogged due to the accumulation of solid particles such as fish waste, the water flow can automatically redirect, supplementing water supply from inside the cylindrical filter screen through the second water passage area formed by the sleeve part 5 and the bottom surface of the inner shell 3. This design ensures a constant water supply to the pump, effectively avoiding the risk of pump burnout due to dry running or excessive load, and significantly improving the reliability and service life of the filter.

[0015] The sleeve part 5 has a base plate 6, the side of which extends toward the inner wall of the inner shell 3. A water passage gap is formed between the side of the base plate 6 and the inner wall of the inner shell 3. This structure ensures the unobstructedness and stability of the backup water inlet channel, and ensures that when the cylindrical filter screen 4 is blocked, the water flow can stably and smoothly pass through the gap into the interior of the cylindrical filter screen 4, thereby more reliably preventing the water pump from burning dry.

[0016] The inner shell 3 is provided with a positioning post 7, and the bottom plate 6 is provided with a positioning hole 8 that mates with the positioning post 7. The cooperation between the positioning post 7 and the positioning hole 8 can realize the precise positioning and stable installation of the sleeve part 5 in the inner shell 3.

[0017] The outer side of the sleeve portion 5 is provided with multiple first reinforcing ribs 9, which are evenly distributed circumferentially and closely attached to the outer surface of the cylindrical filter screen 4. This effectively prevents the soft cylindrical filter screen 4 from deforming, collapsing, or deviating from its correct position when impacted by water flow or clogged, ensuring effective working space for the main filtration channel and the backup water inlet channel, and improving the stability and durability of the entire filtration structure.

[0018] The water outlet 2 is provided with an annular wall 10. The inner side of the annular wall 10 is provided with a plurality of second reinforcing ribs 11. The plurality of second reinforcing ribs 11 are evenly distributed circumferentially. The second reinforcing ribs 11 and the annular wall 10 form a groove for connecting the cylindrical filter screen 4. The function of the second reinforcing ribs 11 is the same as that of the first reinforcing ribs 9, and will not be described again here.

[0019] The housing includes a front shell 12 and a rear shell 13, which are assembled together by snap fasteners. The rear shell 13 is provided with a slot 14, and the inner shell 3 is provided with a snap-fit ​​part 15 that connects to the slot 14. The snap fastener connection between the front shell 12 and the rear shell 13 makes it convenient for users to disassemble later for cleaning the cylindrical filter screen 4.

[0020] 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 for aquariums, characterized in that: The device includes a shell, with an inlet (1) and an outlet (2) on two opposite sides of the shell. Inside the shell, there is an inner shell (3) and a cylindrical filter screen (4). The inner shell (3) is open towards the outlet (2). There is a first water passage area between the outer wall of the inner shell (3) and the shell. There is a sleeve (5) inside the inner shell (3). The two ends of the cylindrical filter screen (4) are connected to the sleeve (5) and the outlet (2) respectively. A second water passage area is formed between the sleeve (5) and the bottom surface of the inner shell (3). The sleeve (5) connects the second water passage area to the inside of the cylindrical filter screen (4).

2. A fish waste filter for aquariums according to claim 1, characterized in that: The sleeve part (5) has a base plate (6), the side of the base plate (6) extends toward the inner wall of the inner shell (3), and a water passage gap is formed between the side of the base plate (6) and the inner wall of the inner shell (3).

3. A fish waste filter for aquariums according to claim 2, characterized in that: The inner shell (3) is provided with a positioning post (7), and the bottom plate (6) is provided with a positioning hole (8) that mates with the positioning post (7).

4. A fish waste filter for aquariums according to claim 1, characterized in that: The outer side of the sleeve part (5) is provided with a plurality of first reinforcing ribs (9), the plurality of first reinforcing ribs (9) are evenly distributed in the circumference, and the first reinforcing ribs (9) are closely attached to the outer side of the cylindrical filter screen (4).

5. A fish waste filter for aquariums according to any one of claims 1-4, characterized in that: The water outlet (2) is provided with an annular wall (10), and the inner side of the annular wall (10) is provided with a plurality of second reinforcing ribs (11). The plurality of second reinforcing ribs (11) are evenly distributed in the circumference, and a groove for connecting the cylindrical filter screen (4) is formed between the second reinforcing ribs (11) and the annular wall (10).

6. A fish waste filter for aquariums according to any one of claims 1-4, characterized in that: The housing includes a front shell (12) and a rear shell (13). The front shell (12) and the rear shell (13) are assembled together by snap fasteners. The rear shell (13) is provided with a slot (14), and the inner shell (3) is provided with a snap-fit ​​part (15) that connects to the slot (14).

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