Waterway system of fish tank

By designing a fish tank water system with a shared central water path, combined with multi-stage filtration and automated control, the problems of large space occupation and poor filtration effect of small fish tank water systems are solved. This achieves compactness and high-efficiency filtration, improves the user experience, and has automatic water change and water temperature adjustment functions.

CN224205977UActive Publication Date: 2026-05-08中山市铭龙智能电子商务服务部(个体工商户)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中山市铭龙智能电子商务服务部(个体工商户)
Filing Date
2025-05-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing aquarium water systems take up a lot of space, are not suitable for small aquariums, and have poor filtration effects, resulting in a poor user experience.

Method used

A water system for an aquarium was designed, which combines an inlet water path, an outlet water path, and a central water path, all sharing a central water path. It is combined with a multi-stage filtration system and a circulation system, and uses a float switch and electronic control device to achieve automated control. The system includes a primary filtration system, a secondary filtration system, and a water delivery system. It is equipped with a water pump and a solenoid valve, has an automatic water change function, and regulates the water temperature through a heating element and a cooling fan.

Benefits of technology

It features a compact water circuit layout, reducing installation space requirements, improving filtration efficiency, enhancing the user experience, making it particularly suitable for small aquariums, and also has automated control and intelligent water temperature adjustment functions.

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Abstract

A waterway system of a fish tank comprises a fish tank body, a water inlet waterway, a water drainage waterway and a middle waterway, the water inlet waterway comprises a water inlet valve used for opening or closing the water inlet waterway, and the water drainage waterway comprises a water drainage valve used for opening or closing the water drainage waterway; when the water inlet valve is opened, the water inlet waterway is communicated with the fish tank body through the middle waterway, and when the water drainage valve is opened, the water drainage waterway is communicated with the fish tank body through the middle waterway. According to the waterway system of the fish tank, the water inlet waterway, the water drainage waterway and the middle waterway are arranged, the water inlet waterway comprises the water inlet valve, the water drainage waterway comprises the water drainage valve, when the water inlet valve is opened, the water inlet waterway is communicated with the fish tank body through the middle waterway, and when the water drainage valve is opened, the water drainage waterway is communicated with the fish tank body through the middle waterway. The water inlet waterway and the water outlet waterway share one middle waterway, redundant pipelines can be reduced, space layout is optimized, occupied space of the waterways is further reduced, and the waterways do not need large installation space.
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Description

Technical Field

[0001] This utility model relates to the field of aquarium technology, and in particular to a water system for aquariums. Background Technology

[0002] Chinese patent document CN208191896U, published on December 7, 2018, discloses a fish tank with an external circulation filtration system for automatic water changing. This system includes a dechlorination and purification filter directly connected to a tap water pipe. By adjusting a valve on the inlet pipe to maintain a constant and suitable water flow, the fish tank can automatically change water without manual intervention. However, this system has separate inlet and outlet water lines, requiring significant space and making it unsuitable for small fish tanks.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a water system for aquariums that is simple and reasonable in structure, occupies little space, has good filtration effect, good user experience, and is highly practical, so as to overcome the shortcomings of the existing technology.

[0005] A water system for an aquarium designed for this purpose includes an aquarium body, characterized in that it further includes an inlet water path, an outlet water path, and an intermediate water path. The inlet water path includes an inlet valve for opening or closing the inlet water path, and the outlet water path includes a outlet valve for opening or closing the outlet water path. Either the inlet valve or the outlet valve is to be opened. When the inlet valve is opened, the inlet water path is connected to the aquarium body through the intermediate water path. When the outlet valve is opened, the outlet water path is connected to the aquarium body through the intermediate water path.

[0006] The water inlet circuit also includes an inlet pipe, and the water outlet circuit also includes a drain pipe. An intermediate pipe is provided between the inlet valve and the drain valve. One end of the inlet valve is connected to the inlet pipe and the other end is connected to the intermediate pipe. One end of the drain valve is connected to the drain pipe and the other end is connected to the intermediate pipe. When the inlet valve is open, the inlet pipe is connected to the intermediate water circuit through the intermediate pipe. When the drain valve is open, the drain pipe is connected to the intermediate water circuit through the intermediate pipe.

[0007] The intermediate water system includes a primary filtration system, a secondary filtration system, a water supply system, and a circulation system. The primary filtration system, the secondary filtration system, the water supply system, and the aquarium body are connected in sequence. The aquarium body is connected to the primary filtration system through the circulation system.

[0008] The water supply system includes a water supply chamber that connects to the aquarium body. The water supply chamber is equipped with a float switch and a first water level switch for detecting the water level. The float switch is located at the middle height of the water supply chamber, and the first water level switch is located at the top of the water supply chamber.

[0009] It also includes a control device, and the water supply circuit includes a water pump and a water supply pipe. The water pump is installed in the water supply chamber and is connected to one end of the water supply pipe. The other end of the water supply pipe is connected to the aquarium body. The control device is electrically connected to the water pump, float switch, first water level switch, inlet valve and drain valve respectively.

[0010] The primary filtration water circuit includes a primary filtration chamber and a first filtration component. An intermediate pipe connects to the primary filtration chamber, and the first filtration component is located at the top of the primary filtration chamber.

[0011] The circulating water circuit includes a return water pipe, a circulation pipe, and a solenoid valve. One end of the return water pipe is connected to the aquarium body, and the other end is connected to one end of the circulation pipe. The other end of the circulation pipe extends into the primary filtration chamber. The solenoid valve is installed on the return water pipe or the circulation pipe, and the control device is electrically connected to the solenoid valve.

[0012] The secondary filtration circuit includes a first filtration chamber, a second filtration chamber, a third filtration chamber, and second filtration components respectively disposed in the first, second, and third filtration chambers. The primary filtration chamber has an opening at its upper part, which connects to the first filtration chamber. A first channel is provided between the first and second filtration chambers, with the bottom of the first channel connecting to the first filtration chamber and the top connecting to the second filtration chamber. A second channel is provided between the second and third filtration chambers, with the bottom of the second channel connecting to the second filtration chamber and the top connecting to the third filtration chamber. A third channel is provided between the third filtration chamber and the water delivery chamber, with the bottom of the third channel connecting to the third filtration chamber and the top connecting to the water delivery chamber.

[0013] The top of the aquarium is equipped with a high-level switch for detecting high water levels and a low-level switch for detecting low water levels. The control device is electrically connected to the high-level switch and the low-level switch respectively. An overflow outlet is provided on one side of the aquarium, and the overflow outlet is connected to the drain pipe through an overflow pipe.

[0014] The aquarium body is equipped with a heating component for heating the liquid inside the aquarium body. The top of the second or third filter chamber is equipped with a movable door. A drive device and a cooling fan are installed above the second or third filter chamber. The drive device drives the movable door to open or close the second or third filter chamber. When the second or third filter chamber is open, the exhaust end of the cooling fan is connected to the second or third filter chamber.

[0015] The aquarium water system of this utility model is designed with an inlet water path, an outlet water path, and an intermediate water path. The inlet water path includes an inlet valve, and the outlet water path includes an outlet valve. When the inlet valve is open, the inlet water path connects to the aquarium body through the intermediate water path. When the outlet valve is open, the outlet water path connects to the aquarium body through the intermediate water path. The inlet and outlet water paths share a single intermediate water path, which reduces redundant pipes, optimizes the spatial layout, and reduces the space occupied by the water path. This means that the water path does not require a large installation space, achieving a compact and reliable aquarium water system, which is particularly suitable for small aquariums. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the aquarium water system in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the aquarium water system from another angle in one embodiment of the present invention.

[0018] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0019] Figure 4 for Figure 1 A magnified structural diagram at point B in the middle. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1-4 The water system of this aquarium includes the aquarium body 1, the water inlet channel 2, the water outlet channel 3, and the intermediate channel. The water inlet channel 2 includes an inlet valve 4 for opening or closing the water inlet channel 2, and the water outlet channel 3 includes a drain valve 5 for opening or closing the drain channel 3. Either the inlet valve 4 or the drain valve 5 can be opened. When the inlet valve 4 is open, the water inlet channel 2 is connected to the aquarium body 1 through the intermediate channel. When the drain valve 5 is open, the drain channel 3 is connected to the aquarium body 1 through the intermediate channel.

[0022] The water inlet path 2 also includes an inlet pipe 6, which is connected to a water source. The water outlet path 3 also includes a drain pipe 7. An intermediate pipe 8 is provided between the inlet valve 4 and the drain valve 5. One end of the inlet valve 4 is connected to the inlet pipe 6 and the other end is connected to the intermediate pipe 8. One end of the drain valve 5 is connected to the drain pipe 7 and the other end is connected to the intermediate pipe 8. When the inlet valve 4 is open, the inlet pipe 6 is connected to the intermediate water path through the intermediate pipe 8. When the drain valve 5 is open, the drain pipe 7 is connected to the intermediate water path through the intermediate pipe 8. When the inlet valve 4 is closed, the inlet pipe 6 and the intermediate pipe 8 are not connected. When the drain valve 5 is closed, the drain pipe 7 and the intermediate pipe 8 are not connected.

[0023] The intermediate water system includes a primary filtration system 9, a secondary filtration system 10, a water supply system 11, and a circulation system 12. These systems are sequentially connected to the aquarium body 1. The aquarium body 1 is connected to the primary filtration system 9 via the circulation system 12. When water enters the aquarium, external water flows through the inlet system 2 to the primary filtration system 9, where it undergoes preliminary filtration. The water then flows to the secondary filtration system 10 for further filtration before reaching the water supply system 11. The water is then pumped into the aquarium body 1 by the pump 17. When the solenoid valve 23 is opened, the water in the aquarium body 1 can return to the primary filtration system 9 via the circulation system 12. This circulation filters fish waste, keeping the water in the aquarium body 1 clean. The water then flows back into the aquarium body 1 via the secondary filtration system 10 and the water supply system 11, thus achieving water circulation.

[0024] The water supply circuit 11 includes a water supply chamber 13, which connects to the aquarium body 1. The water supply chamber 13 is equipped with a float switch 14 and a first water level switch 15 for detecting the water level. The float switch 14 is located at the middle height of the water supply chamber 13, and the first water level switch 15 is located at the top of the water supply chamber 13. When the water level in the water supply chamber 13 rises, the float rises accordingly, triggering the switch to disconnect the circuit, and the inlet valve 4 stops working. When the water level in the water supply chamber 13 drops, the float falls accordingly, triggering the switch to reset and close, and the inlet valve 4 resumes operation. The float switch operates based on the principle of buoyancy. The liquid level control device controls the opening and closing of the switch by the rise or fall of the float ball. It does not require electricity to operate, so it can be used in scenarios without electricity. In addition, when the float switch fails, the water level in the water delivery chamber 13 will rise to the top of the water delivery chamber 13 and trigger the first water level switch 15, which in turn controls the inlet valve 4 to stop working through the control device 16. When the water level in the water delivery chamber 13 drops to the corresponding height, the control device 16 controls the inlet valve 4 to resume working. The float switch 14 and the first water level switch 15 play a double insurance role, which can effectively prevent the water in the water delivery chamber 13 from overflowing due to excessive water level.

[0025] It also includes a control device 16, and the water supply circuit 11 includes a water pump 17 and a water supply pipe 18. The water pump 17 is installed in the water supply chamber 13. The water pump 17 is connected to one end of the water supply pipe 18, and the other end of the water supply pipe 18 is connected to the aquarium body 1. The control device 16 is electrically connected to the water pump 17, the float switch 14, the first water level switch 15, the inlet valve 4, and the drain valve 5 respectively. The control device 16 is an electrical control box, which is used to control the operation of the water pump 17, the inlet valve 4, and the drain valve 5. The water pump 17 is used to pump water from the water supply chamber 13 into the aquarium body 1.

[0026] The primary filtration water path 9 includes a primary filtration chamber 19 and a first filter element 20. The intermediate pipe 8 connects to the primary filtration chamber 19. The first filter element 20 is located at the top of the primary filtration chamber 19 and is a filter screen, mainly used to filter fish feces.

[0027] The circulating water circuit 12 includes a return pipe 21, a circulation pipe 22, and a solenoid valve 23. One end of the return pipe 21 is connected to the aquarium body 1, and the other end is connected to one end of the circulation pipe 22. The other end of the circulation pipe 22 extends into the primary filtration chamber 19. The solenoid valve 23 is installed on the return pipe 21, and the control device 16 is electrically connected to the solenoid valve 23. When the control device 16 controls the solenoid valve 23 to open, the water in the aquarium body 1 enters the primary filtration chamber 19 through the return pipe 21 and the circulation pipe 22 in sequence, and then returns to the aquarium body 1 through the first filtration chamber 24, the second filtration chamber 25, the third filtration chamber 26, and the water delivery chamber 13 in sequence, so as to filter the water in the aquarium body 1 and keep the water in the aquarium body 1 clean. The other end of the circulation pipe 22 is provided with a T-shaped pipe that connects to the primary filtration chamber 19. When the drain valve 5 is opened, the water in the aquarium body 1 and the primary filtration chamber 19 is discharged out of the aquarium through the drain water circuit 3, and the feces in the primary filtration chamber 19 are also discharged out of the aquarium.

[0028] Two return water pipes 21 are provided, and one circulation pipe 22 is provided. The return water pipes 21 are located on both sides of the circulation pipe 22, and the two return water pipes 21 are connected to the circulation pipe 22 through the horizontal pipe 43.

[0029] The secondary filtration water path 10 includes a first filtration chamber 24, a second filtration chamber 25, a third filtration chamber 26, and a second filter element 27 respectively disposed in the first filtration chamber 24, the second filtration chamber 25, and the third filtration chamber 26. The second filter element 27 is filter cotton, which can perform deep filtration of water. The upper part of the primary filtration chamber 19 is provided with an opening 28, which connects the primary filtration chamber 19 to the first filtration chamber 24. A first channel 29 is provided between the first filtration chamber 24 and the second filtration chamber 25. The bottom of the first channel 29 is connected to the bottom and top of the first filtration chamber 24 through a notch 38. The top of the second filter chamber 25 is connected through the notch 38. A second channel 30 is provided between the second filter chamber 25 and the third filter chamber 26. The bottom of the second channel 30 is connected to the bottom of the second filter chamber 25 through the notch 38, and the top of the second channel 30 is connected to the top of the third filter chamber 26 through the notch 38. A third channel 31 is provided between the third filter chamber 26 and the water delivery chamber 13. The bottom of the third channel 31 is connected to the bottom of the third filter chamber 26 through the notch 38, and the top of the third channel 31 is connected to the top of the water delivery chamber 13 through the notch 38. Notches 38 are provided at the upper and lower ends of the first channel 29, the second channel 30 and the third channel 31 respectively.

[0030] The top of the aquarium body 1 is equipped with a high-level switch 32 for detecting high water levels and a low-level switch 33 for detecting low water levels. The control device 16 is electrically connected to the high-level switch 32 and the low-level switch 33 respectively. An overflow port 34 is provided on one side of the aquarium body 1. The overflow port 34 is connected to the drain pipe 7 through an overflow pipe 35. When the water level in the aquarium body 1 rises to the position of the high-level switch 32, the high-level switch 32 is triggered, and the control device 16 controls the water pump 17 to stop working. When the water level in the aquarium body 1 drops to the position of the low-level switch 33, the low-level switch 33 is triggered (the water in the aquarium body 1 will evaporate, so the water level will drop), and the control device 16 controls the water pump 17 to resume working. When the water level in the aquarium body 1 is too high, that is, when it reaches the height of the overflow port 34, the water will flow out through the overflow port 34, then flow through the overflow pipe 35 to the drain pipe 7, and finally be discharged out of the aquarium through the drain pipe 7.

[0031] The aquarium body 1 is equipped with a heating element (not shown in the figure) for heating the liquid inside the aquarium body 1. The heating element is a heating tube. A movable door 36 is provided on the top of the second filter chamber 25 or the third filter chamber 26. A drive device and a cooling fan 37 are provided above the second filter chamber 25 or the third filter chamber 26. The drive device drives the movable door 36 to open or close the second filter chamber 25 or the third filter chamber 26. When the second filter chamber 25 or the third filter chamber 26 is open, the air outlet of the cooling fan 37 is connected to the second filter chamber 25 or the third filter chamber. 26. The cooling fan 37 can blow air into the second filter chamber 25 or the third filter chamber 26 to cool the water inside the second filter chamber 25 or the third filter chamber 26, preventing high-temperature water from affecting the health of the fish; the driving device includes a motor 39, a lead screw 40 and a nut 41. The motor 39 drives the lead screw 40, and the nut 41 is movably mounted on the lead screw 40. The motor 39 drives the lead screw 40 to rotate, and the lead screw 40 drives the nut 41 to move linearly, thereby driving the movable door 36 to open or close; in this embodiment, the movable door 36 is located at the top of the third filter chamber 26.

[0032] The fish tank includes a lower housing 42, a primary filter chamber 19, a first filter chamber 24, a second filter chamber 25, a third filter chamber 26, a water supply chamber 13, a control device 16, a drive device, and a cooling fan 37, all of which are located inside the lower housing 42.

[0033] The aquarium's water system can also achieve intelligent water changes. Specifically, by inputting the automatic drainage and water filling times into the control device 16, such as weekly drainage and water filling times, or automatic drainage and water filling every two days, the system can automatically drain and fill water by controlling the timed opening and closing of the inlet valve 4, the drain valve 5, and the water pump 17. In addition, by controlling the opening degree of the inlet valve 4 and the drain valve 5, the water filling and drainage time can be controlled. For example, drain water for half an hour or one hour first, and then fill the tank with water.

[0034] In addition, the power of the heating element and the speed of the cooling fan 37 are controlled by the control device 16 to intelligently regulate the water temperature inside the aquarium body 1.

[0035] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water system for a fish tank, comprising a fish tank body (1), characterized in that: It also includes an inlet water path (2), a drain water path (3) and an intermediate water path. The inlet water path (2) includes an inlet valve (4) for opening or closing the inlet water path (2), and the drain water path (3) includes a drain valve (5) for opening or closing the drain water path (3). The inlet valve (4) and the drain valve (5) can be opened at one time. When the inlet valve (4) is opened, the inlet water path (2) is connected to the aquarium body (1) through the intermediate water path. When the drain valve (5) is opened, the drain water path (3) is connected to the aquarium body (1) through the intermediate water path.

2. The aquarium water system according to claim 1, characterized in that: The water inlet path (2) also includes an inlet pipe (6), and the water outlet path (3) also includes a drain pipe (7). An intermediate pipe (8) is provided between the water inlet valve (4) and the drain valve (5). One end of the water inlet valve (4) is connected to the water inlet pipe (6) and the other end is connected to the intermediate pipe (8). One end of the drain valve (5) is connected to the drain pipe (7) and the other end is connected to the intermediate pipe (8). When the water inlet valve (4) is open, the water inlet pipe (6) is connected to the intermediate water path through the intermediate pipe (8). When the drain valve (5) is open, the drain pipe (7) is connected to the intermediate water path through the intermediate pipe (8).

3. The aquarium water system according to claim 2, characterized in that: The intermediate water path includes a primary filtration water path (9), a secondary filtration water path (10), a water supply water path (11), and a circulation water path (12). The primary filtration water path (9), the secondary filtration water path (10), the water supply water path (11), and the aquarium body (1) are connected in sequence. The aquarium body (1) is connected to the primary filtration water path (9) through the circulation water path (12).

4. The aquarium water system according to claim 3, characterized in that: The water supply channel (11) includes a water supply chamber (13), which is connected to the aquarium body (1). The water supply chamber (13) is equipped with a float switch (14) and a first water level switch (15) for detecting the water level of the water supply chamber (13). The float switch (14) is located at the middle height of the water supply chamber (13), and the first water level switch (15) is located at the top of the water supply chamber (13).

5. The aquarium water system according to claim 4, characterized in that: It also includes a control device (16), and the water supply path (11) includes a water pump (17) and a water supply pipe (18). The water pump (17) is installed in the water supply chamber (13). The water pump (17) is connected to one end of the water supply pipe (18), and the other end of the water supply pipe (18) is connected to the aquarium body (1). The control device (16) is electrically connected to the water pump (17), the float switch (14), the first water level switch (15), the inlet valve (4), and the drain valve (5).

6. The aquarium water system according to claim 5, characterized in that: The primary filtration water path (9) includes a primary filtration chamber (19) and a first filter element (20). An intermediate pipe (8) connects to the primary filtration chamber (19), and the first filter element (20) is located at the top of the primary filtration chamber (19).

7. The aquarium water system according to claim 6, characterized in that: The circulating water circuit (12) includes a return pipe (21), a circulation pipe (22) and a solenoid valve (23). One end of the return pipe (21) is connected to the aquarium body (1) and the other end is connected to one end of the circulation pipe (22). The other end of the circulation pipe (22) extends into the primary filter chamber (19). The solenoid valve (23) is installed on the return pipe (21) or the circulation pipe (22). The control device (16) is electrically connected to the solenoid valve (23).

8. The aquarium water system according to claim 6, characterized in that: The secondary filtration water path (10) includes a first filtration chamber (24), a second filtration chamber (25), a third filtration chamber (26), and second filtration components (27) respectively disposed in the first filtration chamber (24), the second filtration chamber (25), and the third filtration chamber (26). The upper part of the primary filtration chamber (19) is provided with an opening (28), and the primary filtration chamber (19) is connected to the first filtration chamber (24) through the opening (28). A first channel (29) is provided between the first filtration chamber (24) and the second filtration chamber (25). The bottom of the first channel (29) is connected to the first filter chamber (24) and the top is connected to the second filter chamber (25). A second channel (30) is provided between the second filter chamber (25) and the third filter chamber (26). The bottom of the second channel (30) is connected to the second filter chamber (25) and the top is connected to the third filter chamber (26). A third channel (31) is provided between the third filter chamber (26) and the water delivery chamber (13). The bottom of the third channel (31) is connected to the third filter chamber (26) and the top is connected to the water delivery chamber (13).

9. The aquarium water system according to claim 5, characterized in that: The top of the aquarium body (1) is equipped with a high water level switch (32) for detecting high water level and a low water level switch (33) for detecting low water level. The control device (16) is electrically connected to the high water level switch (32) and the low water level switch (33) respectively. An overflow port (34) is provided on one side of the aquarium body (1). The overflow port (34) is connected to the drain pipe (7) through the overflow pipe (35).

10. The aquarium water system according to claim 8, characterized in that: The aquarium body (1) is provided with a heating component for heating the liquid inside the aquarium body (1). The top of the second filter chamber (25) or the third filter chamber (26) is provided with a movable door (36). A drive device and a cooling fan (37) are provided above the second filter chamber (25) or the third filter chamber (26). The drive device drives the movable door (36) to open or close the second filter chamber (25) or the third filter chamber (26). When the second filter chamber (25) or the third filter chamber (26) is open, the air outlet of the cooling fan (37) is connected to the second filter chamber (25) or the third filter chamber (26).

Citation Information

Patent Citations

  • Set up outer circulating and filtering system of water environment in order to realize fish bowl from moving water

    CN208191896U