High-efficiency filter for fish tank

By designing a drawer-type filter structure and an overflow prevention and check valve connection pipe, the aquarium filter solves the problems of high noise, cumbersome replacement, and overflow of the turnover box filter, improving the ease of operation and safety of the filter.

CN224069514UActive Publication Date: 2026-04-03陈远卓
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing turnover box filters are noisy, require complicated filter cotton replacement, are prone to overflow, and have complex piping, which affects the home environment and fishkeeping experience.

Method used

A fish tank filter was designed, which includes a lower filter box, a middle filter box, and an upper drawer-type filter box. The drawer structure makes it easy to replace the filter cotton. It has a built-in overflow prevention pipe and check valve connection pipe to reduce overflow and noise and simplify operation.

Benefits of technology

It reduces water flow noise, simplifies the filter cotton replacement process, avoids overflow and pump dry burning, and improves filtration effect and appearance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224069514U_ABST
Patent Text Reader

Abstract

The utility model discloses an efficient filter for a fish tank, which relates to the field of fish tank filtration and comprises a lower-layer filter tank, a middle-layer filter tank arranged at the top end of the lower-layer filter tank, an upper-layer filter tank arranged at the top end of the middle-layer filter tank, the upper-layer filter tank is of a drawing type drawer structure, and the lower-layer filter tank comprises a lower-layer tank body. The fish tank high-efficiency filter comprises a lower-layer filter box, a middle-layer filter box is arranged at the top end of the lower-layer filter box, an upper-layer filter box is arranged at the top end of the middle-layer filter box, and the upper-layer filter box is of a drawing type drawer structure. According to the filter, the inner filter cotton is more convenient to replace, an original anti-overflow pipe is arranged in the lower layer filter box of the filter, overflow caused by excessive water can be reduced, it can be guaranteed that a certain amount of water is reserved in a water pipe after a pump is stopped through the design of a bent pipe of a check valve connecting pipe, and the condition that the pump body is dry-burnt when the pump is started next time is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of aquarium filtration, specifically a high-efficiency aquarium filter. Background Technology

[0002] As people's living standards improve, fishkeeping is becoming a popular hobby, attracting more and more households. Against this backdrop, turnover box filters, with their excellent filtration performance, have stood out among various fishkeeping filtration options, becoming the first choice for many fishkeepers. Turnover box filters not only possess highly efficient filtration capabilities, effectively removing impurities and harmful substances from the water, but are also favored for their simple structure and ease of cleaning and maintenance.

[0003] However, existing portable filter boxes on the market have revealed numerous drawbacks during use. Excessive noise is a common problem, affecting not only the tranquility of the home environment but also causing considerable inconvenience for fish keepers. Furthermore, replacing the filter media is cumbersome and inconvenient, increasing maintenance difficulty and time costs. More seriously, portable filter boxes are prone to overflow, which, if not handled properly, can damage the aquarium and its surrounding environment. In addition, the excessive number of pipes inside the aquarium is a major pain point, affecting aesthetics and potentially increasing the risk of malfunction due to the complexity of the piping. Therefore, developing a safe, efficient, and easy-to-use filter is particularly urgent. Such a filter would not only enhance the fishkeeping experience but also create a more stable and healthy living environment for the fish, satisfying fish keepers' pursuit of a high-quality fishkeeping lifestyle. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency filter for aquariums, comprising a lower filter box, a middle filter box placed at the top of the lower filter box, and an upper filter box placed at the top of the middle filter box, wherein the upper filter box is a pull-out drawer structure.

[0005] Preferably, the lower filter box includes a lower box body with openings on both sides. A main water inlet pipe is rotatably connected to the openings. Water inlet pipes are fixedly connected to the bottom of both sides of the main water inlet pipe. A rotary valve is installed on the surface of each water inlet pipe. A water pump is placed inside the lower box body. A main water outlet pipe is fixedly connected to the outlet of the water pump. A water outlet pipe is fixedly connected to the top of the main water outlet pipe. A check valve connecting pipe is fixedly connected to the inlet of the water pump. One end of the check valve connecting pipe is connected to one end of the check valve. The other end of the check valve is connected to a suction pipe. An oil removal film pipe is connected to the middle section of the suction pipe. An opening is opened at the front end of the lower box body, and an overflow prevention pipe is fixedly connected to the opening.

[0006] Preferably, the upper filter box includes an upper box body, an opening at the front end of the upper box body, two sets of drawers slidably connected inside the opening, a second drain plate inside the drawers, a first drain plate inside the upper box body, and a top cover at the top of the upper box body.

[0007] Preferably, the upper filter box has a first fixing hole at the bottom, the middle filter box has a second fixing hole at the bottom, the main water outlet pipe passes through the first fixing hole, the second fixing hole, the second drain plate and the first drain plate respectively, and the water outlet pipe fixed at the top of the main water outlet pipe is located above the first drain plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] This utility model proposes a high-efficiency aquarium filter, including a lower filter box, a middle filter box placed on top of the lower filter box, and an upper filter box placed on top of the middle filter box. The upper filter box has a pull-out drawer structure. This aquarium filter utilizes a drawer-type structure, which makes it more convenient to replace the internal filter cotton. In addition, the lower filter box of this filter has an innovative anti-overflow pipe built in, which can reduce the overflow caused by excessive water. The design of the bend in the check valve connecting pipe can ensure that a certain amount of water remains in the water pipe after the pump stops, avoiding the pump body from dry burning when it is restarted next time. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the lower filter box structure of this utility model. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the lower filter box structure of this utility model. Figure 2 ;

[0014] Figure 4 This is a disassembled diagram of the upper filter box of this utility model.

[0015] As shown in the figure: 1. Lower filter box; 11. Lower box body; 12. Main inlet pipe; 13. Inlet branch pipe; 14. Rotary valve; 15. Water pump; 16. Main outlet pipe; 17. Outlet branch pipe; 18. Check valve connecting pipe; 19. Pumping pipe; 110. Oil film removal pipe; 111. Overflow prevention pipe; 2. Middle filter box; 3. Upper filter box; 31. Upper box body; 32. Drawer; 33. First drain plate; 34. Second drain plate; 35. Top cover. Detailed Implementation

[0016] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a high-efficiency filter for aquariums, including a lower filter box 1, a middle filter box 2 placed at the top of the lower filter box 1, an upper filter box 3 placed at the top of the middle filter box 2, and the upper filter box 3 having a pull-out drawer structure.

[0018] This aquarium filter utilizes a drawer-style structure, making it more convenient to replace the internal filter cotton. The lower filter box 1 of this filter has an innovative anti-overflow pipe 111, which can reduce overflow caused by excessive water. The design of the check valve connecting pipe 18 bend can ensure that a certain amount of water remains in the water pipe after the pump stops, avoiding the pump body from burning dry when it is started again.

[0019] This filter has the following advantages: 1. A baffle plate is added to the outlet, greatly reducing water flow noise and diverting the water flow so that it can flow evenly onto the filter cotton, improving physical interception efficiency; 2. The physical filter layer of a typical turnover box filter is located relatively high, making it inconvenient to change the filter cotton. This design adds a drawer, making filter cotton changing more convenient without having to climb up and down, making it safer and easier to use; 3. To address the issue of overflow in turnover box filters, this new and practical design incorporates an anti-overflow design, making it safer to use; 4. The uniquely designed built-in check valve piping greatly reduces the number of internal pipes, making the aquarium look cleaner and more aesthetically pleasing; 5. The unique inlet and outlet design adapts to various water levels in the aquarium, optimizes the water circulation route, and improves the filtration effect;

[0020] The lower filter box 1 includes a lower box body 11. The lower box body 11 has openings on both sides. A main water inlet pipe 12 is rotatably connected to the openings. Water inlet pipes 13 are fixedly connected to the bottom of both sides of the main water inlet pipe 12. A rotary valve 14 is installed on the surface of each water inlet pipe 13. A water pump 15 is placed inside the lower box body 11. A main water outlet pipe 16 is fixedly connected to the outlet of the water pump 15. A water outlet pipe 17 is fixedly connected to the top of the main water outlet pipe 16. A check valve connecting pipe 18 is fixedly connected to the inlet of the water pump 15. One end of the check valve connecting pipe 18 is connected to one end of the check valve. The other end of the check valve is connected to a water suction pipe 19. An oil removal film pipe 110 is connected to the middle section of the water suction pipe 19. An opening is opened at the front end of the lower box body 11. An overflow prevention pipe 111 is fixedly connected to the opening.

[0021] The upper filter box 3 includes an upper box body 31. The upper box body 31 has an opening at the front end. Two sets of drawers 32 are slidably connected in the opening. A second drain plate 34 is placed inside the drawers 32. A first drain plate 33 is placed inside the upper box body 31. A top cover 35 is placed on the top of the upper box body 31.

[0022] The bottom of the upper filter box 3 is provided with a first fixing hole, the bottom of the middle filter box 2 is provided with a second fixing hole, the main water outlet pipe 16 passes through the first fixing hole, the second fixing hole, the second drain plate 34 and the first drain plate 33 respectively, and the water outlet pipe 17 fixed at the top of the main water outlet pipe 16 is located above the first drain plate 33.

[0023] In use, the water pump 15 is driven by municipal power supply, drawing water from the aquarium through the suction pipe 19 into the check valve and check valve connecting pipe 18. The oil film removal pipe 110 can suck in the oil film and floating matter on the surface of the aquarium water, and then pump it upwards through the pump body into the main outlet pipe 16, and then through the outlet pipe 17 to the surface of the first drain plate 33. The surface of the first drain plate 33 has multiple sets of openings to divert the water flow and reduce the noise when the water flows down. The water falls into the drawer 32 through the openings. The drawer 32 contains filter cotton for preliminary filtration of the water. After being filtered by the filter cotton, the water flows downwards through the openings on the surface of the second drain plate 34 to the middle filter box 2. Various filter media can be placed inside the middle filter box 2 as needed. The filtered water flows downwards through the openings on the surface of the middle filter box 2 into the lower filter box 1. The water enters the inlet branch pipe 13 through the inlet main pipe 12. The outlet main pipe 16 can be rotated horizontally to adjust the height of the inlet branch pipe 13 before flowing downwards into the fish tank, completing the entire filtration process. The speed and flow rate of the water can be controlled by turning the rotary valve 14. When there is too much water, when the water level reaches the height of the overflow pipe 111, the water will re-enter the fish tank through the overflow pipe 111 to prevent water from overflowing. When the water pump 15 is turned off, the water in the outlet main pipe 16 flows back under gravity, and the bent check valve connecting pipe 18 can prevent the water from continuously flowing back into the fish tank, thereby preventing the water pump 15 from dry burning when it is restarted.

[0024] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0025] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aquarium high efficiency filter characterized by: Including lower filter box (1), the lower filter box (1) top end is placed with middle filter box (2), the middle filter box (2) top end is placed with upper filter box (3), the upper filter box (3) is the drawer structure of pull type.

2. A high efficiency filter for an aquarium as claimed in claim 1 wherein: The lower filter box (1) includes lower box body (11), both sides of the lower box body (11) are provided with openings, the water inlet main pipe (12) is rotatably connected in the opening, the water inlet branch pipe (13) is fixedly connected to the bottom of the left and right sides of the water inlet main pipe (12), each group of water inlet branch pipes (13) are installed with rotating valves (14) on the surface, the water pump (15) is placed in the lower box body (11), the water outlet main pipe (16) is fixedly connected to the water pump (15) outlet, the water outlet branch pipe (17) is fixedly connected to the top of the water outlet main pipe (16), the check valve connecting pipe (18) is fixedly connected to the water pump (15) inlet, one end of the check valve connecting pipe (18) is connected with one end of the check valve, the other end of the check valve is connected with the water pump (19), the oil film removal pipe (110) is connected to the middle segment of the water pump (19), the anti-overflow pipe (111) is fixedly connected to the opening in the front end of the lower box body (11).

3. A high efficiency filter for an aquarium as claimed in claim 2 wherein: The upper filter box (3) includes upper box body (31), the upper box body (31) is provided with an opening in the front end, and two groups of drawers (32) are slidably connected in the opening, the second drain plate (34) is placed in the drawer (32), the first drain plate (33) is placed in the upper box body (31), and the upper cover (35) is placed on the top end of the upper box body (31).

4. A high efficiency filter for an aquarium as claimed in claim 3 wherein: The upper filter box (3) is provided with a first fixed hole in the bottom end, the middle filter box (2) is provided with a second fixed hole in the bottom end, the water outlet main pipe (16) passes through the first fixed hole, the second fixed hole, the second drain plate (34) and the first drain plate (33) respectively, and the water outlet branch pipe (17) fixedly connected to the top end of the water outlet main pipe (16) is located above the first drain plate (33).