A fish tank filtration device
The aquarium filter, with its dual suction system and adaptive oil extraction head design, solves the problems of traditional aquarium filters being unable to handle oil film on the water surface and adapt to water surface fluctuations, thus achieving highly efficient water purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN XINXIU ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional aquarium filters cannot effectively remove oil film on the water surface, and their filtration effect is unstable when the water surface fluctuates, making them unable to adapt to changes in water level.
The design incorporates a dual suction system (water suction pipe and oil suction pipe) and an adaptive oil suction head, combined with a three-chamber partition and multi-stage filtration structure, and is equipped with a water flow adjustment mechanism to simultaneously filter suspended solids in the water and oil film on the water surface, adapting to water surface fluctuations and water level changes.
It improves filtration efficiency and applicability, and can stably and effectively treat oil film on the water surface and dirt in the water, adapting to different water quality conditions.
Smart Images

Figure CN224460907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquarium filter technology, and in particular to an aquarium filtration device. Background Technology
[0002] Traditional aquarium filtration systems generally suffer from simple structures and limited functionality. Most commercially available filters focus only on filtering impurities in the water, neglecting the treatment of surface oil films. These oil films primarily originate from fish metabolites, food residue, and dust from the air; their long-term presence can affect water quality and gas exchange, thus harming the health of aquatic organisms. Existing filters typically use a fixed-height inlet design, which is ineffective at removing surface oil.
[0003] A more prominent problem is that existing filtration systems perform poorly when faced with water surface fluctuations. In daily use, the water surface in aquarium frequently fluctuates due to adding food, cleaning the tank, and fish activity, and the water level also changes due to evaporation or water changes. A fixed-height inlet design can easily lead to air being sucked in or the inlet failing to extract the oil film from the surface when the water surface is fluctuating, resulting in unstable and inefficient oil extraction. Furthermore, when the water level drops below the fixed inlet height, the filter may completely lose its oil extraction function.
[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fish tank filtration device with a simple structure that can simultaneously filter oil film and dirt in water and can cope with water surface fluctuations.
[0006] This utility model is achieved through the following technical solution:
[0007] To solve the above-mentioned technical problems, this utility model provides a fish tank filtration device, including a filter box. The filter box is provided with an inlet chamber, a filter chamber, and an outlet chamber. An overflow plate is provided between the inlet chamber and the filter chamber, and their tops are connected. The bottom of the filter chamber is connected to the bottom of the outlet chamber. A filter assembly is provided in the filter chamber. A water pump is provided in the inlet chamber. The inlet of the water pump is connected to an inlet pipe. The other end of the inlet pipe is connected to a downward-extending water suction pipe and an upward-extending oil suction pipe. An oil suction head that can rise and fall with the water surface is provided at the upper end of the oil suction pipe. A regulating valve for adjusting the water flow is also provided at the inlet pipe.
[0008] In order to further solve the technical problem to be solved by this utility model, the present utility model provides an aquarium filter device in which the oil extraction pipe includes a vertical inner pipe and an outer pipe. The outer pipe is sleeved on the inner pipe and can move up and down along it. The oil extraction head is located at the upper end of the outer pipe and floats on the water surface and can rise and fall with the water surface.
[0009] To further solve the technical problem to be solved by this utility model, the present utility model provides a fish tank filter device in which the water inlet pipe includes an upper pipe and a lower pipe. One end of the upper pipe is connected to the water suction pipe and the oil suction pipe, and the other end of the upper pipe is used to install a regulating valve. One end of the lower pipe is located on the side wall of the upper pipe, and the other end of the lower pipe extends downward to the water pump.
[0010] To further address the technical problems addressed by this utility model, the present utility model provides an aquarium filtration device in which the regulating valve includes a knob and a valve plate disposed on the knob. The valve plate is attached to the inner wall of the upper tube and extends to the upper end port of the lower tube. When the knob is rotated, the valve plate blocks the upper end port of the lower tube to varying degrees to control the water flow rate.
[0011] In order to further solve the technical problems to be solved by this utility model, the fish tank filtration device provided by this utility model includes a water pump comprising a motor and an impeller. The bottom of the water inlet chamber is provided with a motor chamber and an impeller chamber. The top of the impeller chamber is provided with a top water inlet. The side of the impeller chamber is provided with a side water outlet. The lower end of the lower pipe covers the top water inlet.
[0012] In order to further solve the technical problems to be solved by this utility model, the fish tank filtration device provided by this utility model has a hollowed-out filter cover at the lower end of the water pumping pipe.
[0013] In order to further solve the technical problem to be solved by this utility model, the fish tank filtration device provided by this utility model has a plurality of intercepting platforms around the oil extraction head, and an oil inlet gap is provided between adjacent intercepting platforms.
[0014] To further address the technical problems to be solved by this utility model, the present utility model provides a fish tank filtration device in which the filtration assembly includes multiple stacked, hollowed-out filter baskets, and filter cotton is provided in the filter baskets.
[0015] In order to further solve the technical problem to be solved by this utility model, the fish tank filtration device provided by this utility model has several bottom ribs at the bottom of the filtration chamber, and the bottom ribs make the bottommost filter basket suspended above the inner bottom surface of the filtration chamber.
[0016] In order to further solve the technical problem to be solved by this utility model, the fish tank filtration device provided by this utility model has a partition between the filtration chamber and the water outlet chamber, and the lower end of the partition is placed on the bottom rib plate so that the bottom of the filtration chamber and the bottom of the water outlet chamber are connected.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] This invention provides a fish tank filtration device, which features a dual suction system (including a water suction pipe and an oil suction pipe) and an adaptive oil suction system (with an oil suction head that rises and falls with the water level). It also employs a three-chamber design (inlet chamber, filter chamber, and outlet chamber) and a multi-stage filtration structure, and is equipped with a water flow regulating mechanism. This design not only effectively treats suspended solids and oil films on the water surface simultaneously, but also automatically adapts to water level fluctuations and changes in water level. Furthermore, the multi-stage filtration enhances the filtration effect, solving the technical problems of traditional filters' single structure, limited functionality, and inability to cope with water level fluctuations, thus greatly improving filtration efficiency and applicability. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is an exploded view of the present invention;
[0022] Figure 3 This is a cross-sectional view of the present invention;
[0023] Figure 4 This is a three-dimensional structural diagram of the filter box;
[0024] Figure 5 This is an exploded view of the water inlet pipe, the water extraction pipe, and the oil extraction pipe. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] like Figures 1 to 5 As shown, this utility model provides a fish tank filtration device with a simple structure and comprehensive functions. It can simultaneously filter oil film on the water surface and dirt in the water, and can effectively cope with water surface fluctuations. The fish tank filtration device mainly includes a filter box 1, the internal space of which is rationally divided into three functional areas: an inlet chamber 11, a filter chamber 12, and an outlet chamber 13. This partitioned design allows the water to form an orderly flow path inside the device, thereby achieving efficient filtration.
[0027] An overflow plate 14 is provided between the inlet chamber 11 and the filter chamber 12. This overflow plate 14 not only separates the two functional areas but also allows their tops to remain connected, enabling water to overflow from the top of the inlet chamber 11 into the filter chamber 12. The bottom of the filter chamber 12 is connected to the bottom of the outlet chamber 13, forming a water outlet and creating a closed loop in the entire water circulation system. The water flows in a "top-in, bottom-out" pattern within the filter chamber 12, which is beneficial for the settling and filtration of contaminants.
[0028] Filter structure
[0029] The filter chamber 12 is equipped with a filter assembly 2, such as Figure 2 As shown, the filter assembly 2 includes multiple stacked, perforated filter baskets 21. These filter baskets 21 feature a perforated design, which allows them to hold the filter media without obstructing water flow. Each filter basket 21 contains filter cotton (not shown in the figure), and different materials and densities of filter cotton can be selected according to actual needs to achieve multi-stage filtration. Furthermore, the stacked design allows dirt to be trapped layer by layer, preventing clogging problems associated with single-use filtration, and also facilitates layer-by-layer replacement and cleaning of the filter media.
[0030] To improve filtration efficiency, the bottom of the filter chamber 12 is provided with several bottom ribs 15. These ribs 15 allow the bottom filter basket 21 to be suspended above the inner bottom surface of the filter chamber 12, forming a water flow channel. This design not only avoids bottom sedimentation but also increases the contact area between the water flow and the filter medium, thereby improving filtration efficiency.
[0031] A partition 16 is provided between the filter chamber 12 and the outlet chamber 13. The lower end of the partition 16 rests on the bottom rib plate 15, so that the bottom of the filter chamber 12 and the bottom of the outlet chamber 13 remain in communication. This design ensures that the water flow must completely pass through all filter layers before entering the outlet chamber 13, thus maximizing the purity of the water.
[0032] Water pump system
[0033] like Figure 2-4 As shown, a water pump 3 is installed in the water inlet chamber 11. This water pump 3 is the power source for the entire filtration device and is responsible for driving the water circulation. The water pump 3 includes a motor 31 and an impeller 32. The motor 31 drives the impeller 32 to rotate, generating water flow power.
[0034] The bottom of the water inlet chamber 11 is provided with a motor chamber 111 and an impeller chamber 112. The motor chamber 111 is used to house the motor 31, and the impeller chamber 112 is used to house the impeller 32. The impeller chamber 112 has a top water inlet 1121 at the top and a side water outlet 1122 on the side. This design allows water to enter the impeller chamber 112 from the top, and after being acted upon by the impeller 32, it flows out from the side, forming a stable water flow path.
[0035] The water pump 3 has an inlet pipe 4 connected to its inlet. The inlet pipe 4 includes an upper pipe 41 and a lower pipe 42. One end of the upper pipe 41 is connected to the suction pipe 5 and the oil suction pipe 6, forming a three-way structure, allowing water to be drawn in from two different locations. The other end of the upper pipe 41 is used to install a regulating valve 7 to facilitate the adjustment of the water flow rate. One end of the lower pipe 42 is located on the side wall of the upper pipe 41, and the other end extends downward to the water pump 3, connecting to the top suction port 1121 of the impeller chamber 112. The lower end of the lower pipe 42 covers the top suction port 1121, ensuring that water can smoothly enter the impeller chamber 112.
[0036] Dual Inhalation System
[0037] A significant feature of this invention is its dual suction system, consisting of a water suction pipe 5 and an oil suction pipe 6 arranged in parallel. The water suction pipe 5 extends downwards to the middle or bottom of the aquarium water, primarily responsible for extracting suspended debris from the water; the oil suction pipe 6 extends upwards to near the water surface, specifically for extracting the oil film on the surface. This dual suction design allows the device to simultaneously treat contaminants in both the water and on the surface, greatly improving filtration efficiency.
[0038] To prevent debris from entering the water pumping pipe 5, a perforated filter cover 51 is provided at the lower end of the water pumping pipe 5. The filter cover 51 adopts a perforated design, which can prevent large particles of debris from entering without affecting the smooth flow of water.
[0039] Adaptive oil pumping system
[0040] To address the problem of existing technologies being unable to handle water surface fluctuations, this invention presents an innovative adaptive oil pumping system. For example... Figure 1-5 As shown, the upper end of the oil extraction pipe 6 is provided with an oil extraction head 61 that can rise and fall with the water surface. The oil extraction head 61 can automatically adjust its position with the rise and fall of the water surface to ensure that it is always at the water surface, thereby continuously and effectively absorbing the oil film on the water surface.
[0041] More specifically, the oil extraction pipe 6 includes a vertically arranged inner pipe 62 and an outer pipe 63. The outer pipe 63 is fitted onto the inner pipe 62 and can move up and down along it, forming a telescopic structure. The oil extraction head 61 is located at the upper end of the outer pipe 63 and has a buoyancy design, enabling it to float on the water surface and rise and fall with the water level. This telescopic design allows the oil extraction head 61 to maintain good working condition when the water surface fluctuates or the water level changes, greatly improving oil extraction efficiency and adaptability.
[0042] To improve the oil extraction efficiency, the oil extraction head 61 is surrounded by several intercepting platforms 611, and an oil inlet gap 612 is provided between adjacent intercepting platforms 611. This design allows the oil film on the water surface to be blocked by the intercepting platforms 611 and guided to the oil inlet gap 612, thereby being effectively sucked into the oil extraction pipe 6, while also preventing debris from entering the oil extraction system.
[0043] Water flow regulating mechanism
[0044] To meet the water flow requirements of different water qualities and fish species, this invention also includes a water flow regulation mechanism. For example... Figure 1-3 As shown in Figure 5, a regulating valve 7 for adjusting the water flow is provided at the water inlet pipe 4. The regulating valve 7 includes a knob 71 and a valve plate 72 disposed on the knob 71. The valve plate 72 is arc-shaped and fits against the inner wall of the upper pipe 41, extending to the upper end port of the lower pipe 42. By rotating the knob 71, the valve plate 72 can block the upper end port of the lower pipe 42 to varying degrees, thereby precisely controlling the water flow. This adjustment mechanism allows users to adjust the water flow rate and filtration intensity according to actual needs, flexibly responding to different water quality conditions.
[0045] Working principle
[0046] The working principle of this utility model is as follows: After the motor 31 is started, the impeller 32 begins to rotate, generating negative pressure in the impeller chamber 112, which draws in water through the top suction port 1121. The water flow draws water containing suspended matter from the middle or bottom of the aquarium through the suction pipe 5, and simultaneously draws out the oil film on the water surface through the oil extraction pipe 6 and its oil extraction head 61. The two water flows converge in the inlet pipe 4, then enter the impeller chamber 112 through the lower pipe 42, and then flow out from the side outlet 1122 under the action of the impeller 32, entering the inlet chamber 11.
[0047] As the water level in the inlet chamber 11 rises, water flows through the top of the overflow plate 14 between the inlet chamber 11 and the filter chamber 12, into the filter chamber 12. Inside the filter chamber 12, the water flows from top to bottom through the multi-layer filter basket 21 and the filter cotton within it, achieving multi-stage filtration. After being filtered, the water reaches the bottom of the filter chamber 12, flows into the bottom space through the gaps in the bottom rib plate 15, and then enters the outlet chamber 13 through the channel below the partition plate 16 between the filter chamber 12 and the outlet chamber 13. Finally, it flows back to the fish tank from the outlet at the top of the outlet chamber 13, completing the entire water cycle.
[0048] When the water level in the aquarium fluctuates or changes, the oil extraction head 61 automatically rises and falls with the water level, always maintaining a suitable position to ensure continuous and effective extraction of the oil film from the surface. Simultaneously, users can adjust the water flow rate via the regulating valve 7 to meet filtration needs under different water quality conditions.
[0049] How to use
[0050] The method of using this utility model is simple and convenient: First, hang the filter device at an appropriate position on the edge of the fish tank, ensuring that both the water suction pipe 5 and the oil suction pipe 6 are immersed in the water, and the oil suction head 61 floats on the water surface; then put an appropriate amount of filter cotton into the filter basket 21; turn on the power and start the water pump 3, and the system will start running; adjust the water flow rate by rotating the knob 71 of the regulating valve 7 as needed; clean or replace the filter cotton regularly to maintain a good filtration effect.
[0051] In summary, the aquarium filtration device provided by this utility model has a reasonable structure and ingenious design. It can not only filter dirt and oil film in the water at the same time, but also effectively cope with water surface fluctuations, and has broad application prospects.
Claims
1. A fish tank filter device, characterized in that: The system includes a filter box (1), which has an inlet chamber (11), a filter chamber (12) and an outlet chamber (13). An overflow plate (14) is provided between the inlet chamber (11) and the filter chamber (12) and their tops are connected. The bottom of the filter chamber (12) is connected to the bottom of the outlet chamber (13). A filter assembly (2) is provided in the filter chamber (12). A water pump (3) is provided in the inlet chamber (11). The inlet of the water pump (3) is connected to an inlet pipe (4). The other end of the inlet pipe (4) is connected to a downward-extending water suction pipe (5) and an upward-extending oil suction pipe (6). An oil suction head (61) that can rise and fall with the water surface is provided at the upper end of the oil suction pipe (6). A regulating valve (7) for adjusting the water flow is also provided at the inlet pipe (4).
2. The aquarium filtration device according to claim 1, characterized in that: The oil extraction pipe (6) includes a vertical inner pipe (62) and an outer pipe (63). The outer pipe (63) is fitted onto the inner pipe (62) and can move up and down along it. The oil extraction head (61) is located at the upper end of the outer pipe (63) and floats on the water surface and can rise and fall with the water surface.
3. The aquarium filtration device according to claim 1, characterized in that: The water inlet pipe (4) includes an upper pipe (41) and a lower pipe (42). One end of the upper pipe (41) is connected to the water pumping pipe (5) and the oil pumping pipe (6). The other end of the upper pipe (41) is used to install a regulating valve (7). One end of the lower pipe (42) is located on the side wall of the upper pipe (41), and the other end of the lower pipe (42) extends downward to the water pump (3).
4. The aquarium filtration device according to claim 3, characterized in that: The regulating valve (7) includes a knob (71) and a valve plate (72) disposed on the knob (71). The valve plate (72) is attached to the inner wall of the upper pipe (41) and extends to the upper end port of the lower pipe (42). When the knob (71) is rotated, the valve plate (72) blocks the upper end port of the lower pipe (42) to varying degrees to control the water flow rate.
5. The aquarium filtration device according to claim 3, characterized in that: The water pump (3) includes a motor (31) and an impeller (32). The bottom of the water inlet chamber (11) is provided with a motor chamber (111) and an impeller chamber (112). The top of the impeller chamber (112) is provided with a top suction port (1121). The side of the impeller chamber (112) is provided with a side outlet (1122). The lower end of the lower pipe (42) covers the top suction port (1121).
6. The aquarium filtration device according to claim 1, characterized in that: The lower end of the water pump (5) is provided with a perforated filter cover (51).
7. The aquarium filtration device according to claim 1, characterized in that: The oil extraction head (61) is surrounded by several intercepting platforms (611), and an oil inlet gap (612) is provided between adjacent intercepting platforms (611).
8. The aquarium filtration device according to claim 1, characterized in that: The filter assembly (2) includes multiple stacked, hollowed-out filter baskets (21), and filter cotton is provided in the filter baskets (21).
9. A fish tank filtration device according to claim 8, characterized in that: The bottom of the filter chamber (12) is provided with several bottom ribs (15), which make the bottom filter basket (21) of the lowest layer suspended above the inner bottom surface of the filter chamber (12).
10. A fish tank filtration device according to claim 9, characterized in that: A partition (16) is provided between the filter chamber (12) and the outlet chamber (13), and the lower end of the partition (16) is placed on the bottom rib plate (15) so that the bottom of the filter chamber (12) and the bottom of the outlet chamber (13) are connected.