A fish tank

Abstract

The present invention relates to the technical field of fish tanks, and specifically to a fish tank comprising: a support frame, an ornamental tank, a bottom filter tank, a water trap tank, a first water pump, a second water pump, a water supply pipe, a water discharge pipe, a three-way water supply pipe, and a controller; a partition is provided inside the ornamental tank; the upper ends of the water supply pipe and the upper ends of the water discharge pipe are both located within the overflow tank, and the lower ends of the water supply pipe and the lower ends of the water discharge pipe are both located below the ornamental tank; a water-turning grid is provided at the upper end of the inner side wall of the water trap tank. The present invention has the advantages of reducing fish abrasions, removing residual chlorine, and effectively removing floating objects, suspended matter, and sediment.

Description

Technical Field

[0001] The present invention relates to the technical field of fish tanks, and in particular to a fish tank. Background Art

[0002] Fish tanks on the market are categorized into two types based on their drainage methods: overflow and siphon. Overflow-based fish tanks lack complex drainage piping; water enters from the top and exits from the bottom of the overflow area. Without pipes within the pond, this effectively reduces the rate of abrasions inflicted by fish competing for food. However, dense particles like feed and fish feces tend to settle at the bottom of the pond, making it difficult to overflow and drain, which can deteriorate water quality. While siphon-based fish tanks can effectively siphon particles out of the tank, they require a siphon tube inserted into the bottom of the tank, typically located on the inner sidewall or corner. This can lead to fish colliding with the siphon during competition, and even small fish can become trapped between the siphon and the sidewall, causing significant abrasions.

[0003] Secondly, pollutants in the fish tank can be divided into three categories based on their location: floating matter, suspended matter, and sediment. Overflow drainage is beneficial for removing floating matter, while siphon drainage is beneficial for removing sediment and some suspended matter near the bottom of the tank. For the majority of suspended matter located in the middle of the tank, a scoop net is often used. However, if the mesh size is too low, it will make it difficult to remove smaller suspended matter, while if the mesh size is too high, the water will be scooped up along with it, making the operation more cumbersome.

[0004] Furthermore, without water conditioning, there may be a temperature difference between the old and new water in the aquarium. If this temperature difference is less than three degrees Celsius, the impact is minimal. However, if it exceeds three degrees Celsius, most ornamental fish may not be able to tolerate a temperature increase or decrease of more than three degrees Celsius in a short period of time, resulting in illness or even sudden death. While this is a rare event, it should not be taken lightly. Furthermore, aquarium water is primarily tap water, which often contains free chlorine, with concentrations increasing the closer to the water plant. Studies have shown that residual chlorine is irritating to fish gills. Excessive concentrations can cause gill lesions, leading to hypertrophy, swelling, shortening, and mucus production, resulting in breathing difficulties and death from lack of oxygen. In water with low residual chlorine concentrations, fish will avoid the aquarium, such as jumping out of it, which is one reason fish jump out of the aquarium after a major water change. Furthermore, residual chlorine can damage the nitrifying bacteria in the filtration system, and if the filtration system is not robust enough, it can cause fish illness. Summary of the Invention

[0005] The object of the present invention is to provide a fish tank for solving at least one technical problem existing in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A fish tank, comprising: a support frame, an ornamental tank arranged on the top of the support frame, a bottom filter tank on one side of the inside of the support frame and a water trap tank on the other side, a first water pump, a second water pump, a water supply pipe, a water discharge pipe, a three-way water supply pipe, and a controller; the water inlet of the first water pump is connected to one end of the bottom filter tank, and the other end is connected to the ornamental tank through the water supply pipe; the water inlet of the second water pump is connected to the water trap tank, and the other end is connected to the bottom filter tank through the three-way water supply pipe; the ornamental tank is connected to the other end of the bottom filter tank through the water discharge pipe; the first water pump and the second water pump are both electrically connected to the controller;

[0008] A partition is provided on one side of the ornamental tank to separate the ornamental tank into an overflow pool and a fish pond; a connecting hole and an overflow window for connecting the overflow pool and the fish pond are provided on the partition, and the overflow window is located above the connecting hole;

[0009] The upper end of the water supply pipe and the upper end of the water discharge pipe are both arranged in the overflow pool, and the lower end of the water supply pipe and the lower end of the water discharge pipe are both arranged below the viewing tank;

[0010] A water-turning grid for removing residual chlorine is provided at the upper end of the inner wall of the water-trapped tank. The first water inlet of the three-way water supply pipeline is connected to the water outlet of the second water pump, the second water inlet is connected to the bottom filter tank, and the third water inlet is connected to the water inlet of the water-turning grid; the water outlet of the water-turning grid is connected to the water-trapped tank.

[0011] Optionally, a siphon port is provided at the bottom of the other side of the ornamental tank; the sewer pipe includes: an overflow pipe and an inverted U-shaped siphon pipe;

[0012] The inverted U-shaped siphon pipeline includes: a first siphon pipe located in the overflow tank, a second siphon pipe, a third siphon pipe, and a fourth pipe and a fifth pipe located below the ornamental tank; the water inlet end of the first siphon pipe is fixed to the bottom plate of the ornamental tank via a connector and is connected to the siphon port via the fourth pipe, and the water outlet end is connected to one end of the third siphon pipe via a connector; the water outlet end of the second siphon pipe is fixed to the bottom plate of the ornamental tank via a connector and is connected to the bottom filter tank via the fifth pipe, and the water inlet end is connected to the other end of the third siphon pipe via a connector; an air inlet hole for interrupting siphoning is provided at the bottom of the third siphon pipe;

[0013] The overflow pipeline includes: an overflow pipe located in the overflow pool and a sixth pipeline located below the ornamental tank; the water outlet end of the overflow pipe is fixed to the bottom plate of the ornamental tank through a connector and is connected to the bottom filter tank through the sixth pipeline, and the water inlet end is located above the air inlet hole.

[0014] Optionally, an overflow baffle for adjusting the opening of the overflow window is slidably provided on one side of the partition located in the overflow tank; the first siphon pipe, the second siphon pipe and the overflow pipe are all retractable pipes;

[0015] The first siphon tube comprises: a first inner tube, a first outer tube, and a first piston sealing ring; the water outlet end of the first outer tube is connected to one end of the third siphon tube via a connector, the water inlet end is slidably sleeved with the first piston sealing ring, the first piston sealing ring sleeves the water outlet end of the first inner tube, the water inlet end of the first inner tube is fixed to the bottom plate of the ornamental tank via a connector and is connected to the siphon port via the fourth pipe;

[0016] The second siphon tube includes: a second inner tube, a second outer tube, and a second piston sealing ring; the water inlet end of the second outer tube is connected to the other end of the third siphon tube via a connector, the water outlet end is slidably sleeved with the second piston sealing ring, the second piston sealing ring is sleeved with the water inlet end of the second inner tube, the water outlet end of the second inner tube is fixed to the bottom plate of the viewing tank via a connector and is connected to the bottom filter tank via the fifth pipe;

[0017] The overflow pipe includes: a third inner tube, a third outer tube, and a third piston sealing ring; the third outer tube is slidably mounted with the third piston sealing ring, the third piston sealing ring is mounted on the water inlet end of the third inner tube, and the water outlet end of the third inner tube is fixed to the bottom plate of the viewing tank through a connector and is connected to the bottom filter tank through the sixth pipeline.

[0018] Optionally, the partition is slidably connected to the overflow baffle through a sliding damping member located in the overflow pool, and the sliding damping member includes a slide rail and a slide buckle; the slide buckle is buckled on the slide rail, the slide buckle is fixed on the overflow baffle, and the slide rail is fixed on the bottom plate of the ornamental tank.

[0019] Optionally, a first valve is provided on the branch pipe of the three-way water supply pipeline for flowing into the water-turning grid, a second valve is provided on the branch pipe of the three-way water supply pipeline for flowing into the bottom filter cylinder 3, and a float valve is provided on the water inlet of the branch pipe of the three-way water supply pipeline for flowing into the bottom filter cylinder.

[0020] Optionally, a drainage pipe is provided on the ornamental tank to discharge the internal water into the water-trapping tank; the upper end of the drainage pipe is located in the overflow pool, and the lower end is located in the water-trapping tank; a third valve is provided at the lower end of the drainage pipe.

[0021] Optionally, a foldable fish tank cover is provided on the top of the ornamental tank to reduce scratches on the fish.

[0022] Optionally, a control box is provided on the side of the support frame, and the controller is installed in the control box.

[0023] Optionally, the support frame is a detachable support frame.

[0024] Optionally, background plates can be detachably provided on the left baffle, the right baffle, the rear baffle and the bottom plate of the viewing tank.

[0025] In summary, the present invention has at least the following beneficial effects:

[0026] (1) The water supply pipe, drainage pipe, and three-way water supply pipe are all installed in the overflow pool and under the ornamental tank, so that there are no pipes in the entire fish pond. The fish will not be scratched by the pipes when fighting for food, and the entire fish tank appears more neat and beautiful.

[0027] (2) A tap water pretreatment system is formed by a water-trapping tank, a water-turning grid, a three-way water supply pipeline, and a second water pump. The tap water is transported from the water-trapping tank to the water-turning grid by the second water pump, and then flows back to the water-trapping tank from the water-turning grid. During this process, the residual chlorine in the tap water evaporates, the oxygen content is increased and approaches the oxygen-rich level in the natural state, and the water temperature is also equivalent to the circulating water in the fish tank; the previous treatment system can operate independently before changing the water, thereby overcoming the shortcomings of the background technology solution.

[0028] (3) A drainage pipe consisting of an inverted U-shaped siphon pipe and an overflow pipe is installed in the overflow tank at the same time, so that the fish tank has both strong floating object removal capabilities and strong sediment removal capabilities; for suspended matter located in the middle, by replacing the overflow pipe with a shorter length (or compressing the retractable overflow pipe) and gradually sliding the overflow baffle downward, the water level in the fish tank gradually decreases. During the descending process, suspended matter at different depths flows into the overflow tank through the overflow window and is finally discharged into the bottom filter tank through the overflow pipe.

[0029] (4) Other beneficial effects will be described in the detailed implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a partial view 1 of the present invention;

[0032] Figure 3 is a cross-sectional view of the viewing tank of the present invention;

[0033] Figure 4 yes Figure 3 Enlarged schematic diagram of area A in the middle

[0034] Figure 5 It is a partial view II of the present invention;

[0035] Figure 6 It is a partial view III of the present invention;

[0036] Figure 7 is a cross-sectional view of the overflow pipe of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the third siphon in the present invention;

[0038] Figure 9 It is an exploded view of the pipeline in the present invention;

[0039] Figure 10 It is a structural schematic diagram of the three-way water supply pipeline in the present invention;

[0040] Figure 11 It is an exploded view of the background plate in the present invention;

[0041] Figure 12 It is a schematic diagram of the installation of the background plate in the present invention.

[0042] In the figure: 1. Support frame; 11. First bracket; 12. Second bracket; 2. Ornamental tank; 21. Partition; 211. Connecting hole; 212. Overflow window; 22. Overflow pool; 23. Fish pond; 24. Siphon; 25. Overflow baffle; 26. Sliding damper; 261. Slide rail; 262. Slide buckle; 27. Drain pipe; 271. Third valve; 28. Folding fish tank cover; 281. Connecting plate; 282. Cover plate; 283. Sealing cover; 29. Background plate; 210. Scale plate; 3. Bottom filter; 4. Water trap; 41. Water-turning grid; 5. First water pump; 6. Second water pump; 7. Water supply pipe; 71. Inverted U-shaped pipeline; 72. Seventh pipeline; 8. Sewer pipeline; 81. Overflow pipeline; 811. Overflow pipe; 8111. Third inner pipe; 8112. Third outer pipe; 8113. Third piston sealing ring; 812. Sixth pipeline; 63. Third piston sealing ring; 82. Inverted U-shaped siphon pipeline; 821. First siphon pipe; 822. Second siphon pipe; 823. Third siphon pipe; 8231. Air inlet; 824. Fourth pipeline; 8241. Fourth valve; 825. Fifth pipeline; 9. Three-way water supply pipeline; 91. First valve; 92. Second valve; 93. Float valve; 10. Control box. DETAILED DESCRIPTION

[0043] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

[0044] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0045] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0047] The present invention provides a fish tank, such as Figure 1-10 As shown, it includes: a support frame 1, an ornamental tank 2 arranged on the top of the support frame 1, a bottom filter tank 3 arranged on one side of the inside of the support frame 1 and a trapped water tank 4 on the other side, a first water pump 5, a second water pump 6, a water supply pipe 7, a water discharge pipe 8, a three-way water supply pipe 9, and a controller; the water inlet of the first water pump 5 is connected with one end of the bottom filter tank 3, and the other end is connected with the ornamental tank 2 through the water supply pipe 7; the water inlet of the second water pump 6 is connected with the trapped water tank 4, and the other end is connected with the bottom filter tank 3 through the three-way water supply pipe 9; the ornamental tank 2 is connected with the other end of the bottom filter tank 3 through the water discharge pipe 8; the first water pump 5 and the second water pump 6 are both electrically connected to the controller;

[0048] A partition 21 is provided on one side of the ornamental tank 2 to separate the ornamental tank 2 into an overflow pool 22 and a fish pond 23. A connecting hole 211 and an overflow window 212 are provided on the partition 21 to connect the overflow pool 22 and the fish pond 23. The overflow window 212 is located above the connecting hole 211.

[0049] The upper end of the water supply pipe 7 and the upper end of the water discharge pipe 8 are both arranged in the overflow pool 22, and the lower end of the water supply pipe 7 and the lower end of the water discharge pipe 8 are both arranged below the viewing tank 2;

[0050] A water-turning grid 41 for removing residual chlorine is provided at the upper end of the inner wall of the water-trapped tank 4. The first water inlet of the three-way water supply pipeline 9 is connected to the water outlet of the second water pump 6, the second water inlet is connected to the bottom filter tank 3, and the third water inlet is connected to the water inlet of the water-turning grid 41; the water outlet of the water-turning grid 41 is connected to the water-trapped tank 4.

[0051] In this embodiment, the viewing tank 2 is mounted on top of the support frame 1 via a retaining structure, and the bottom filter tank 3 is mounted inside the support frame 1 via a retaining structure. The bottom filter tank 3 is a tank body divided into a physical zone, a biochemical zone, and a water pump zone, and various filter materials are placed inside it. It is a conventional filter tank in the field of fish tanks. The first water pump is placed in the water pump zone of the bottom filter tank 3 and is controlled by a controller installed on the control box 10. The partition 21 is fixed to one side of the viewing tank 2 in a conventional manner, at a distance from the bottom plate of the viewing tank 2 ( Figure 4 A connecting hole 211 is opened at a position about 10CM (at point B in the middle); the water supply pipe 7, the drainage pipe 8, and the three-way water supply pipe 9 all refer to a pipeline system composed of multiple PVC pipes or nylon pipes and multiple connectors, and the connectors are conventional water pipe joints used to change the direction of the pipes; with the bottom plate of the viewing tank 2 as the dividing line, the upper ends of the water supply pipe 7 and the drainage pipe 8 are both installed in the overflow tank 22 with copper drum connectors, and the lower ends of the water supply pipe 7 and the drainage pipe 8 are both installed below the viewing tank 2.

[0052] The first water pump 5 delivers the water in the sump 3 to the fish pond 23 via the inlet pipe 4. The water in the fish pond 23 is then delivered back to the sump 3 via the outlet pipe 8. The second water pump 6 delivers the water in the trapped water tank 4 to the pump area of the sump 3 and the water-turning grid 41 via the water-supplementing pipe 9. The water in the water-turning grid 41 flows back to the trapped water tank 4 through the water outlet under the action of gravity.

[0053] Based on the above structure, the water supply pipe 7, the drainage pipe 8, and the three-way water supply pipe 9 are all installed in the overflow pool 21 and below the ornamental tank 2, so that there are no pipes in the entire fish pond 23. The fish will not be scratched by the pipes during the process of fighting for food, and the entire fish tank appears more tidy and beautiful.

[0054] Based on the above structure, the water-turning grid 41 is formed by a plurality of glass plates and the side walls of the water-trapping tank 4, and has a pool body with more than three partitions; tap water is introduced into the water-trapping tank 4 through an external water pipe, and under the control of the controller, the second submersible pump 6 starts to start, and the tap water is transported upward to the water-turning grid 41 through the three-way water supply pipe 9, and then transported from the front end of the water-turning grid 41 to the rear end, and then flows downward back to the water-trapping tank 4 through the water outlet. Under the action of the second submersible pump 6, the tap water is repeatedly pumped up the water-turning grid 41 and repeatedly falls back into the water-trapping tank 4. This is the water-turning process. In this process, In the process, the residual chlorine in the tap water evaporates, the oxygen content is increased and approaches the oxygen-rich level in the natural state (lower than the maximum oxygen content that the aeration pump can reach). This oxygen-rich level can meet the needs of anaerobic fish without causing obvious stress reactions in anaerobic fish. In addition, the water temperature is also close to room temperature, which is equivalent to the circulating water in the fish tank. Before changing the water, the second submersible pump 6 is controlled to work until the tap water is processed to meet the demand and then flows into the water pump area of the bottom filter tank 3. That is, the previous treatment system can operate independently before changing the water, thereby overcoming the shortcomings of the background technology solution.

[0055] Furthermore, a siphon port 24 is provided at the bottom of the other side of the viewing tank 2; the sewer pipe 8 includes: an overflow pipe 81 and an inverted U-shaped siphon pipe 82;

[0056] The inverted U-shaped siphon pipeline 82 includes: a first siphon pipe 821, a second siphon pipe 822, a third siphon pipe 823 located within the overflow tank 22, and a fourth pipe 824 and a fifth pipe 825 located below the ornamental tank 2. The water inlet end of the first siphon pipe 821 is fixed to the bottom plate of the ornamental tank 2 via a connector and communicates with the siphon port 24 via the fourth pipe 824. The water outlet end is communicated with one end of the third siphon pipe 823 via a connector. The water outlet end of the second siphon pipe 822 is fixed to the bottom plate of the ornamental tank 2 via a connector and communicates with the bottom filter tank 3 via the fifth pipe 825. The water inlet end is communicated with the other end of the third siphon pipe 823 via a connector. An air inlet hole 8231 for interrupting siphoning is provided at the bottom of the third siphon pipe 823.

[0057] The overflow pipeline 81 includes: an overflow pipe 811 located in the overflow pool 22 and a sixth pipeline 812 located below the ornamental tank 2; the water outlet end of the overflow pipe 811 is fixed to the bottom plate of the ornamental tank 2 through a connector and is connected to the bottom filter tank 3 through the sixth pipeline 812, and the water inlet end is located above the air inlet hole 8231.

[0058] like Figure 6-9As shown, the bottom end of the first siphon tube 821 is installed on the bottom plate of the viewing tank 2 through a connector, and the top end is fixed to the right end of the third siphon tube 823 through a connector; the bottom end of the second siphon tube 822 is installed on the bottom plate of the viewing tank 2 through a connector, and the top end is fixed to the left end of the third siphon tube 823 through a connector; the first siphon tube 821 and the second siphon tube 822 are vertically arranged, and the third siphon tube 823 is horizontally arranged; in another embodiment, the first siphon tube 821, the second siphon tube 822, and the third siphon tube 823 can all be inclined. The water inlet of the first siphon tube 821 is connected to the siphon hole 24 through the fourth pipe 824, and the water outlet of the second siphon tube 822 is connected to the bottom filter tank 3 through the fifth pipe 825; Figure 2 and Figure 3 In the figure, due to the obstruction of the fourth pipe 824, the siphon opening 24 is not directly marked, but the specific location of the siphon opening 24 can be easily determined by one skilled in the art. Furthermore, the diameter of the air inlet 8231 is 6 mm. When the water level in the overflow tank 22 is higher than the air inlet 8231, the inverted U-shaped siphon pipe 82 begins siphoning. When the water level in the overflow tank 22 is lower than the air inlet 8231, the inverted U-shaped siphon pipe 82 ceases siphoning. Furthermore, the water supply pipe 7 consists of an inverted U-shaped pipe 71 and a seventh pipe 72. The inverted U-shaped pipe 71 is mounted on the bottom plate of the ornamental tank 2 via a connector and is located within the overflow tank 22. The seventh pipe 72 is located below the ornamental tank 2.

[0059] Based on the above structure, a sewer pipe 8 consisting of an inverted U-shaped siphon pipe 82 and an overflow pipe 81 is installed simultaneously in the overflow tank 22, so that the fish tank has both strong floating object removal capabilities and strong sediment removal capabilities; in addition, the air inlet 8231 is cleverly set at the bottom of the third siphon pipe 823, so that when the water level in the overflow tank 22 is lower than the air inlet 8231, the siphon process is automatically interrupted, preventing the water in the fish tank 23 from being emptied and preventing the water from flooding the bottom filter tank 3.

[0060] Furthermore, an overflow baffle 25 for adjusting the opening of the overflow window 212 is slidably provided on one side of the partition 21 located in the overflow tank 22; the first siphon pipe 821, the second siphon pipe 822, and the overflow pipe 811 are all retractable pipes;

[0061] The first siphon tube 821 includes: a first inner tube, a first outer tube, and a first piston sealing ring; the water outlet end of the first outer tube is connected to one end of the third siphon tube 823 via a connector, the water inlet end is slidably mounted with the first piston sealing ring, and the first piston sealing ring is mounted on the water outlet end of the first inner tube; the water inlet end of the first inner tube is fixed to the bottom plate of the viewing tank 2 via a connector and is connected to the siphon port 24 via the fourth pipe 824;

[0062] The second siphon tube 822 includes: a second inner tube, a second outer tube, and a second piston sealing ring; the water inlet end of the second outer tube is connected to the other end of the third siphon tube 823 via a connector, the water outlet end is slidably mounted with the second piston sealing ring, and the second piston sealing ring is mounted on the water inlet end of the second inner tube; the water outlet end of the second inner tube is fixed to the bottom plate of the viewing tank 2 via a connector and is connected to the bottom filter tank 3 via the fifth pipe 825;

[0063] The overflow pipe 811 includes: a third inner tube 8111, a third outer tube 8112, and a third piston sealing ring 8113; the third outer tube 8112 is slidably mounted with the third piston sealing ring 8113, and the third piston sealing ring 8113 is mounted on the water inlet end of the third inner tube 8111. The water outlet end of the third inner tube 8111 is fixed to the bottom plate of the viewing tank 2 via a connector and is connected to the bottom filter tank 3 via the sixth pipeline 812.

[0064] comprehensive Figure 6-9 As shown, in another embodiment, the overflow window 212 is formed by a plurality of through-holes in the shape of a grid. The through-holes can be polygonal in shape, such as waist-shaped, circular, triangular, or rectangular. The overflow window 212 can drain suspended solids at different depths in the fish pond 23 into the overflow tank 22, and then into the bottom filter 3 through the overflow pipe 811. The top of the overflow pipe 811 is the water inlet point. The water inlet point cannot be lower than the air inlet hole 8231, otherwise the inverted U-shaped siphon pipe 82 will not be able to siphon. It is sufficient to be slightly higher than the air inlet hole 8231.

[0065] After the overflow pipe 811 is installed in the overflow pool 22, the water level in the fish pond 23 is more stable. The height of the overflow pipe 811 is the maximum water level in the fish pond 23, so that the fish tank has the advantages of siphon drainage and overflow drainage at the same time.

[0066] In this embodiment, the retractable pipes with the same structure are selected as the first siphon pipe 821, the second siphon pipe 822 and the overflow pipe 811. Since the three are only slightly different in length and outer diameter, only the structure of the overflow pipe 811 will be described below. Figure 7 As shown, overflow tube 811 consists of a third inner tube 8111, a third outer tube 8112, and a third piston sealing ring 8113. The overall structure is similar to that of a syringe, except that the third inner tube 8111 and the third outer tube 8112 are connected. The third inner tube 8111 is fixed to the bottom plate of the viewing tank 2, while the third outer tube 8112 can slide up and down on the third inner tube 8111. To prevent the third piston sealing ring 8113 from falling off the third inner tube 8111, two nuts are installed on the third inner tube 8111, with the third piston sealing ring 8113 positioned between the two nuts.

[0067] When it is necessary to drain suspended matter in the middle of the fish pond 23, the third outer tube 8112 is pressed down firmly, shortening the overflow tube 811. The overflow baffle 7 is then gradually slid downward, causing the water level in the fish pond 23 to gradually drop. During this process, suspended matter at different depths flows through the overflow window 212 into the overflow tank 21 and ultimately drains into the bottom filter 3 through the overflow tube 811. After draining the suspended matter, the third outer tube 8112 is replaced by the upwardly sliding baffle 7, which is then slid upward to its initial position. The height of the third siphon tube 823 can be adjusted or not during this process. When shallow fish tanks are required, both the third outer tube 8112 and the third siphon tube 823 are simultaneously depressed. If the air inlet 8231 is located above the water inlet of the third outer tube 8112, only overflow drainage occurs. If the air inlet 8231 is located below the water inlet of the third outer tube 8112, both overflow drainage and siphon drainage are achieved.

[0068] Furthermore, the partition 21 is slidably connected to the overflow baffle 25 through a sliding damping member 26 located in the overflow pool 22, and the sliding damping member 26 includes a sliding rail 261 and a sliding buckle 262; the sliding buckle 262 is buckled on the sliding rail 261, and the sliding buckle 262 is fixedly set on the overflow baffle 25, and the sliding rail 261 is fixedly set on the bottom plate of the ornamental tank 2.

[0069] like Figure 6 As shown, both the rail 81 and the slider 82 are made of plastic. The slider 82 has a certain clamping force, allowing it to slide on the rail 81 with a certain amount of external force and remain fixed to the rail 81 without external force. To provide a better sliding feel, the rail 81 can be made of low-friction polytetrafluoroethylene. The rail 81 is secured to the bottom plate of the viewing tank 2 via a connector, while the slider 82 is secured to the overflow baffle 25 with glue or screws. To ensure force balance, a sliding damper 26 is symmetrically mounted on either side of the overflow baffle 25.

[0070] Furthermore, a first valve 91 is provided on the branch pipe of the three-way water supply pipe 9 for flowing into the water-turning grid 41, a second valve 92 is provided on the branch pipe of the three-way water supply pipe for flowing into the bottom filter cylinder 3, and a float valve 93 is provided on the water inlet of the branch pipe of the three-way water supply pipe for flowing into the bottom filter cylinder 3.

[0071] like Figure 5 and Figure 10As shown, the three-way water supply pipeline 9 is a piping system with three branches extending from a three-way connector. The water inlet of one branch is connected to the second submersible pump 6, the water inlet of another branch is connected to the water inlet 411 of the water-turning grid, and the water inlet of the remaining branch is connected to the sump 3, preferably to the water pump area of the sump 3. When a new tank is opened, the first valve 91 is opened and the second valve 92 is closed. After the residual chlorine is removed, the second valve 2 is opened and the first valve 91 is closed. The water enters the water pump area of the sump 3, then passes through the first submersible pump 5 and the water supply pipeline 7 into the viewing tank 2, and then flows back to the water inlet area of the sump 3 through the water supply pipeline 8. After physical and biochemical filtration, it returns to the water pump area.

[0072] Based on the above structure, in the early stage of residual chlorine removal, tap water that still contains a relatively high concentration will not directly enter the bottom filter tank 3, but will enter the bottom filter tank 3 after being processed for a sufficient time. That is, the residual chlorine removal system of the present application can operate independently before changing the water, thereby overcoming the deficiency of the CN211960593U patent that the residual chlorine content in the water body still exceeds the standard in the early stage of water change, and also reducing the risk of certain fish becoming sick or dying suddenly due to the high temperature of tap water in some users' homes in hot summer.

[0073] When the water level in the bottom filter tank 3 is lower than the preset value, the float valve 93 installed on the water inlet of the branch pipe connected to the bottom filter tank 3 will automatically open, allowing the tap water that has been fully dechlorinated (the second submersible pump 6 is always in the started state) to be replenished into the bottom filter tank 3.

[0074] In order to further save electricity, a residual chlorine sensor can be installed in the water tank 4, which feeds back the residual chlorine concentration to the controller in real time. When the residual chlorine concentration is lower than the set value, the controller controls the second water pump 6 to stop working. Among them, the first water pump 5 and the second water pump 6 are both submersible pumps.

[0075] Furthermore, a drainage pipe 27 is provided on the ornamental tank 2 to discharge the internal water to the water-trapping tank 4; the upper end of the drainage pipe 27 is located in the overflow pool 22, and the lower end is located in the water-trapping tank 4; a third valve 271 is provided at the lower end of the drainage pipe 27.

[0076] like Figure 6 and Figure 9 As shown, the water that can no longer be used is discharged from the viewing tank 2 and can be discharged into the bottom filter tank 3 or the water trapping tank 4 (through the third valve 271 and the fourth valve 8241). It is preferably discharged into the water trapping tank 4 because there are no various filter materials in the water trapping tank 4, which is convenient for operation. Of course, the external water pipe can also be directly connected to the water outlet of the third valve 271.

[0077] Furthermore, to prevent the water in ornamental tub 2 from being completely drained (in some cases, only a partial water change is required), the water inlet of drainage pipe 27 is located at 1 / 5 of the height of ornamental tub 2, thereby draining 4 / 5 of the water in the tub. Specifically, when the depth of ornamental tub 2 is 100 cm, the water inlet of drainage pipe 27 is located 20 cm above the bottom of ornamental tub 2. Because siphon port 24 is located at the bottom of ornamental tub 2, the water in ornamental tub 2 can be completely drained when fourth valve 8241 is opened.

[0078] Furthermore, a foldable fish tank cover 28 is provided on the top of the viewing tank 2 to reduce scratches on the fish.

[0079] like Figure 1 As shown, in this embodiment, the connecting plate 281 and the cover plate 282 are both made of a hard material. The cover plate 282 is hinged to the connecting plate 281 by a conventional hinge method, such as a hinge, hinge, or other articulated member. Alternatively, corresponding pin holes may be provided on the connecting plate 281 and the cover plate 282, and the hinged connection may be achieved by engaging the pins. A feeding hole (not shown in the drawings) is provided at each end of each cover plate 282, i.e., there is a feeding hole at each of the four corners of the top of the fish tank. The sealing cover 283 is snapped onto the feeding hole and can be tightly fastened to the feeding hole or simply placed on the feeding hole by its own gravity.

[0080] Remove the sealing cover 283 from the cover plate 282 to start feeding. After feeding, replace the sealing cover 283 to prevent fish from jumping out of the feeding hole. The four feeding holes on the two cover plates 282 guide users to disperse feeding, which can prevent fish from excessively concentrating in the same place to compete for food and effectively reduce the proportion of fish abrasions.

[0081] Furthermore, a control box 10 is provided on the side of the support frame 1 , and the controller is installed in the control box 10 .

[0082] like Figure 1 and Figure 11 As shown, the controller, display panel, and setting panel are all installed in the control box 10, which can be seen by opening the double doors on the control box 10. Various operating information of the fish tank can be displayed on the display panel.

[0083] like Figure 2 As shown, the support frame 1 is composed of a first bracket 11 and a second bracket 12 connected by quick-release screws. This is because the width of a door frame in an average household is 80CM, so splitting it into two parts is convenient for transportation and assembly.

[0084] Furthermore, background plates 29 are detachably provided on the left baffle, the right baffle, the rear baffle, and the bottom plate of the viewing tank 2 .

[0085] like Figure 11 As shown, a background plate 29 is installed on the left baffle, right baffle, rear baffle and bottom plate of the viewing tank 2. The background plate 29 is installed on the viewing tank 2 in a pull-out (embedded) manner through a edging piece, wherein a groove for accommodating the background plate 29 is opened on the edging piece (similar to the structure of a drawer guide, such as Figure 12 C).

[0086] There are two purposes for adding background plate 29 to the viewing tank 2. First, it is convenient for viewing, especially for the fish tank placed against the wall, which will look better with background plate 29. Second, it is to preserve the color of the fish. The body color of many fish often changes with the surrounding environment. If the whole fish is relatively transparent, it will fade.

[0087] In addition, a scale plate 210 for displaying the water level is installed on the front baffle of the viewing tank 2. The scale plate 210 is located at a position corresponding to the overflow pool 21, which can prevent users from seeing the pipes inside the overflow pool 21, thereby improving the aesthetics.

[0088] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fish tank, characterized in that: include: A support frame, an ornamental tank arranged on the top of the support frame, a bottom filter tank on one side of the inside of the support frame and a trapped water tank on the other side, a first water pump, a second water pump, a water supply pipe, a water discharge pipe, a three-way water supply pipe, and a controller; the water inlet of the first water pump is connected with one end of the bottom filter tank, and the other end is connected with the ornamental tank through the water supply pipe; the water inlet of the second water pump is connected with the trapped water tank, and the other end is connected with the bottom filter tank through the three-way water supply pipe; the ornamental tank is connected with the other end of the bottom filter tank through the water discharge pipe; the first water pump and the second water pump are both electrically connected to the controller; A partition is provided on one side of the ornamental tank to separate the ornamental tank into an overflow pool and a fish pond; a connecting hole and an overflow window for connecting the overflow pool and the fish pond are provided on the partition, and the overflow window is located above the connecting hole; The upper end of the water supply pipe and the upper end of the water discharge pipe are both arranged in the overflow pool, and the lower end of the water supply pipe and the lower end of the water discharge pipe are both arranged below the viewing tank; A water-turning grid for removing residual chlorine is provided at the upper end of the inner side wall of the water-trapped tank. The first water inlet of the three-way water supply pipeline is connected to the water outlet of the second water pump, the second water inlet is connected to the bottom filter tank, and the third water inlet is connected to the water inlet of the water-turning grid; the water outlet of the water-turning grid is connected to the water-trapped tank; A siphon port is provided at the bottom of the other side of the ornamental tank; the sewer pipe includes: an overflow pipe and an inverted U-shaped siphon pipe; The inverted U-shaped siphon pipeline includes: a first siphon pipe located in the overflow tank, a second siphon pipe, a third siphon pipe, and a fourth pipe and a fifth pipe located below the ornamental tank; the water inlet end of the first siphon pipe is fixed to the bottom plate of the ornamental tank via a connector and is connected to the siphon port via the fourth pipe, and the water outlet end is connected to one end of the third siphon pipe via a connector; the water outlet end of the second siphon pipe is fixed to the bottom plate of the ornamental tank via a connector and is connected to the bottom filter tank via the fifth pipe, and the water inlet end is connected to the other end of the third siphon pipe via a connector; an air inlet hole for interrupting siphoning is provided at the bottom of the third siphon pipe; The overflow pipeline includes: an overflow pipe located in the overflow pool and a sixth pipe located below the viewing tank; the water outlet end of the overflow pipe is fixed to the bottom plate of the viewing tank through a connector and is connected to the bottom filter tank through the sixth pipe, and the water inlet end is located above the air inlet hole; A first valve is provided on the branch pipe of the three-way water supply pipeline for flowing into the water-turning grid, a second valve is provided on the branch pipe of the three-way water supply pipeline for flowing into the bottom filter cylinder, and a float valve is provided on the water inlet of the branch pipe of the three-way water supply pipeline for flowing into the bottom filter cylinder.

2. The fish tank according to claim 1, characterized in that An overflow baffle for adjusting the opening of the overflow window is slidably provided on one side of the partition located in the overflow tank; the first siphon pipe, the second siphon pipe and the overflow pipe are all retractable pipes; The first siphon tube comprises: a first inner tube, a first outer tube, and a first piston sealing ring; the water outlet end of the first outer tube is connected to one end of the third siphon tube via a connector, the water inlet end is slidably sleeved with the first piston sealing ring, the first piston sealing ring sleeves the water outlet end of the first inner tube, the water inlet end of the first inner tube is fixed to the bottom plate of the ornamental tank via a connector and is connected to the siphon port via the fourth pipe; The second siphon tube includes: a second inner tube, a second outer tube, and a second piston sealing ring; the water inlet end of the second outer tube is connected to the other end of the third siphon tube via a connector, the water outlet end is slidably sleeved with the second piston sealing ring, the second piston sealing ring is sleeved with the water inlet end of the second inner tube, the water outlet end of the second inner tube is fixed to the bottom plate of the viewing tank via a connector and is connected to the bottom filter tank via the fifth pipe; The overflow pipe includes: a third inner tube, a third outer tube, and a third piston sealing ring; the third outer tube is slidably mounted with the third piston sealing ring, the third piston sealing ring is mounted on the water inlet end of the third inner tube, and the water outlet end of the third inner tube is fixed to the bottom plate of the viewing tank through a connector and is connected to the bottom filter tank through the sixth pipeline.

3. The fish tank according to claim 2, characterized in that The partition is slidably connected to the overflow baffle through a sliding damping member located in the overflow pool, and the sliding damping member includes a sliding rail and a sliding buckle; the sliding buckle is buckled on the sliding rail, the sliding buckle is fixed on the overflow baffle, and the sliding rail is fixed on the bottom plate of the ornamental tank.

4. The fish tank according to claim 1, wherein: A drainage pipe is provided on the ornamental tank to discharge the water inside it to the water-trapping tank; the upper end of the drainage pipe is located in the overflow pool, and the lower end is located in the water-trapping tank; a third valve is provided at the lower end of the drainage pipe.

5. The fish tank according to claim 1, characterized in that A foldable fish tank cover for reducing scratches on the fish is provided on the top of the viewing tank.

6. The fish tank according to claim 1, characterized in that A control box is provided on the side of the support frame, and the controller is installed in the control box.

7. The fish tank according to claim 1, characterized in that The support frame is a detachable support frame.

8. The fish tank according to claim 1, wherein: Background plates are detachably provided on the left baffle, the right baffle, the rear baffle and the bottom plate of the viewing tank.

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