WO2008074252A1

WO2008074252A1 - Fish tank

Info

Publication number: WO2008074252A1
Application number: PCT/CN2007/071205
Authority: WO
Inventors: Zhanbin Shen
Original assignee: Zhanbin Shen
Priority date: 2006-12-21
Filing date: 2007-12-10
Publication date: 2008-06-26
Also published as: CN101011044A

Abstract

A fish tank comprises side walls (1) and a floor plate (2). At least one side (1) of the floor plate is provided with a drainage means (3). The drainage means has a long narrow chamber. A water inlet member and a water outlet (5) communicated with the chamber are provided on the drainage means. The water inlet member consists of a lot of water inlets (4) that are set along the length direction of the drainage means and communicated with the fish tank chamber. The water outlet of the drainage means is connected with a discharge valve and/or a water filtering system. The water filtering system filters the water from the water outlet and feeds the filtered water back to the fish tank. With the special drainage means in the bottom of the fish tank, the impurities of fish manure and rot leaves can be drained under the action of water flow so as to make water clean. With the corresponding water filtering system, water may be graded and the fish tank may operate at a great variety of modes.

Description

A fish tank

The invention relates to a fish tank. Background technique

The fish tanks currently on the market, whether they are only for fish farming, or both for water plants and fish, the fish manure and the rotten leaves of the plants are deposited on the bottom of the fish tank due to their own gravity. In order to discharge the fish's droppings and keep the water quality in the aquarium unchanged, people usually put a submersible pump in the aquarium, use a submersible pump to circulate the water in the aquarium, and filter the water during the circulation. However, placing a submersible pump in the aquarium not only affects the aesthetics, but more importantly does not allow the water in the aquarium to be well filtered. This is because the fish's feces are scattered at the bottom of the whole fish tank, and the submersible pump's pumping action is small, and it can only suck the fish manure in a small area near the water inlet, and it can't draw a little far from its water inlet. Foreign body in the area. It is even harder to clean up the fish tanks that are planted with water plants at the same time, because the fish manure and the rotten leaves of the water plants are deposited in the sand layer at the bottom of the fish tank, and it is impossible to extract from the sand layer. Therefore, in order to maintain the water quality in the aquarium, even if the submersible pump filter device is installed, it is necessary to frequently change the water in the aquarium. Summary of the invention

In view of the problems in the prior art, an object of the present invention is to provide an aquarium which can easily remove foreign matter such as feces and watery grass in a fish tank by improving the structure, thereby maintaining good water quality in the fish tank for a long time. .

In order to achieve the above object, an aquarium of the present invention comprises a side wall and a bottom plate, and at least one side of the bottom plate is provided with a drainage structure having the same length as the side, the drainage structure having an elongated cavity provided thereon a water inlet and a water outlet communicating with the cavity, wherein the water inlet is composed of a plurality of water inlet holes spaced along the length of the drainage structure and communicating with the fish tank, and the water outlet of the drainage structure is connected with the discharge valve, and/or The water filtering system is connected, wherein the water filtering system filters the water outputted from the water outlet of the drainage structure and returns it to the fish tank.

Further, the bottom plate of the aquarium has an arc shape with one side high and one side low, and the drainage structure is disposed along the lowest side of the fish tank bottom plate. Further, the bottom plate of the fish tank is curved at a low height on both sides of the middle, and the lowest side of the bottom plate of the fish tank is provided with a drainage structure.

Further, the bottom plate of the fish tank is a flat plate structure, and the bottom plate is disposed at a high side and a low side, and the drainage structure is located at a lowest side of the bottom plate of the fish tank.

Further, a part of the bottom plate of the aquarium is a horizontal plane, and another part is a slope inclined downward from the edge of the horizontal plane. The drainage structure is located at the lowest side of the bottom plate of the fish tank, and a movable plate is horizontally placed on the bottom plate of the fish tank. The length and width dimensions are matched with the fish tank, and a plurality of through holes are spaced apart from one end of the flat plate corresponding to the drainage structure, and a line connecting the horizontal portion of the bottom plate of the fish tank and the inclined portion is parallel to the drainage structure, and the position of the intersection line can be The flat plate is turned over at the intersection line when the drainage structure is drained, and is restored to a horizontal state when the drainage structure stops draining.

Further, the drainage structure is composed of a rectangular tube which is tightly inserted between the side of the bottom plate of the fish tank and the side wall of the side fish tank, and the upper surface thereof is flush with the upper surface of the fish tank bottom plate, and the two ends of the rectangular tube are respectively The side walls of the aquariums on both sides are hermetically connected, and the water inlet holes are disposed on the upper side walls thereof.

Further, the drainage structure is composed of a rectangular tube which is tightly inserted between the side of the bottom plate of the fish tank and the side wall of the side fish tank, and the upper surface thereof is higher than the upper surface of the bottom plate of the fish tank, and the two ends of the rectangular tube are respectively The side wall of the aquarium is hermetically connected, and the water inlet hole is disposed on a side wall of the drainage structure that is in contact with the bottom plate of the fish tank.

Further, the drainage structure is composed of an L-shaped seal, an aquarium bottom plate and a fish tank side wall, and the two web edges of the L-shaped seal are respectively closely connected with the upper surface of the upper aquarium bottom plate and the inner surface of the aquarium side wall of the outer side, respectively. The ends are respectively tightly connected to the sides of the aquarium on both sides, so that a cavity is formed below the side of the bottom of the aquarium, and the inlet hole is disposed on the bottom plate of the aquarium constituting the upper side wall of the cavity.

Further, the drainage structure is composed of a rectangular tube, the outer side surface of the rectangular tube is tightly connected with the side wall of the fish tank, and the two ends of the rectangular tube are respectively tightly connected with the side walls of the fish tank on both sides, and the side of the bottom plate of the fish tank is tightly overlapped on the side of the rectangular tube. Above, a space is left between the side of the bottom plate of the aquarium and the side wall of the side aquarium, and an opening upward groove is formed above the rectangular pipe, and the water inlet hole is disposed on the bottom wall of the groove.

Further, the drainage structure is composed of an elongated cover plate and a U-shaped groove. The outer surface of the outer plate of the U-shaped groove is closely connected with the side wall of the fish tank, and the two ends of the U-shaped groove are respectively closely connected with the side walls of the fish tank on both sides. The U-shaped slot is open upward, and the side of the bottom of the aquarium is tightly overlapped on the inside of the U-shaped groove. On the vertical plate, or in close contact with the outer surface of the side vertical plate in the U-shaped groove, a space between the side of the bottom plate of the fish tank and the side wall of the fish tank is not less than the width of the long strip cover, and the long strip cover The sealed package is formed on the U-shaped groove and forms a cavity together with the U-shaped groove. The thickness of the long-shaped cover plate is smaller than the thickness of the bottom plate of the fish tank, and the upper side of the bottom plate of the fish tank and the side wall of the fish tank together form an opening upward groove. The water inlet hole is disposed on the elongated cover plate. Further, the water filtration system is composed of a built-in filter cylinder, a filter material, and a water pump, and the built-in filter cylinder is composed of a small compartment separated by an intermediate partition at one end of the fish tank, and the middle partition plate is flush with the fish tank side wall. Flat, the drainage structure is disposed across the intermediate partition, and a portion of the drainage structure located in the small compartment is provided with a through hole communicating with the small compartment, the through hole forming a water outlet of the drainage structure, in the small compartment A water retaining plate is disposed at one end of the drainage structure to separate the drainage structure from the other parts of the small compartment, and the water retaining plate is lower than the intermediate partition, and the portion of the small compartment which is separated by the water retaining plate and has no drainage structure The filter material is filled therein, and a water pump is arranged under the filter material, and the water pump outlet is connected to the through hole provided in the middle partition plate and connected with the fish tank through the pipeline, and the water discharged from the water outlet of the drainage structure flows over the water deflector and flows into the small partition. In the portion with the filter material between them, the influent water is then filtered downward from the side above the filter material and finally returned by the water pump through the through hole provided in the middle partition plate. In the fish tank outside the cubicle. Further, the fish tank is provided with a built-in water level control structure, which is composed of a small compartment which is separated from the fish tank by an intermediate partition in the fish tank, and the middle partition plate is flush with the fish tank side wall. Flat, the drainage structure is disposed across the intermediate partition, and a portion of the drainage structure located in the small compartment is provided with a through hole communicating with the small compartment, the through hole forming a water outlet of the drainage structure, in the small compartment Provided is a water deflector that separates the drainage structure from the rest of the small compartment, the water deflector being disposed along the bottom of the fish tank below the intermediate partition, the small compartment being separated by the water retaining plate and having no drainage structure There is a drainage hole that is connected to the water filtration system. Further, the bottom of the fish tank is further provided with a component specially used for breeding aquatic plants.

Further, the water filtration system is composed of an external filter cylinder, a closed filter, a water pump, a control valve, and a connecting pipeline, wherein the closed filter is a closed structure, and the filter material is disposed therein and a self-prepared water pump is built therein. The external filter cylinder is open at the top, and the filter material is filled therein, and an output port is arranged below the filter material, and the output port of the external filter cylinder is connected to the water pump inlet through the pipeline and the control valve, and the pump outlet is filtered through the pipeline and the closed filter. Input port In connection, the output port of the closed filter is connected to the fish tank through a pipeline, and two control valves are connected to the water outlet of the drain hole or the water outlet of the drainage structure, and an output port of one control valve is connected through the pipeline. The output of the other control valve is placed above the external filter cylinder to directly input water into the externally exposed external filter cylinder. The fish tank of the present invention comprises a side wall and a bottom plate, wherein the bottom plate has an arc shape with a low middle portion and a high height on both sides, and a drainage structure spanning the bottom plate is arranged along the curved bottom of the bottom plate, the drainage structure having a long strip cavity disposed thereon The water inlet and the water outlet communicating with the cavity, wherein the water inlet is composed of a plurality of water inlet holes spaced along the length of the drainage structure and communicating with the fish tank, and the water inlet end of the water inlet hole is lower than or perpendicular to the water inlet end The upper surface of the bottom plate is flush, the water outlet on the drainage structure is connected to the discharge valve, and/or is connected to the water filtration system, wherein the water filtration system filters the water output from the water outlet of the drainage structure and returns it. Go to the fish tank.

According to the present invention, by providing a special drainage structure at the bottom of the fish tank, impurities such as fish manure and watery grass rot in the fish tank can be efficiently discharged under the action of water flow, thereby creating conditions for cleaning the water. After the corresponding water treatment system is set up, the water is classified and treated, and the impurities in the water are effectively removed, the operation load of the filter device in the system is reduced, and the fish tank can be operated in various working modes. DRAWINGS

Figure 1 is a schematic view of a first embodiment of the present invention;

Figure 2 is a schematic view of a second embodiment;

Figure 3 is a schematic view of a third embodiment;

Figure 4 is a schematic view of a fourth embodiment;

Figure 5 is a schematic view of a fifth embodiment;

Figure 6 is a schematic view of a sixth embodiment;

Figure 7 is a schematic view of a seventh embodiment;

Figure 8 is a schematic view of an eighth embodiment;

Figure 9 is a cross-sectional view taken along line A in Figure 8;

Figure 10 is a top view of the aquarium shown in Figure 8;

Figure 1 is a plan view of a ninth embodiment;

Figure 12 is a schematic view of a tenth embodiment; Fig. 13 is a schematic view showing the arrangement of the aquatic cultured parts in the aquarium; Fig. 14 is a schematic view showing the structure of the present invention when the external filtering device is provided. detailed description

The invention will be further described in detail below with reference to the accompanying drawings.

Example 1

As shown in Fig. 1, the fish tank comprises four side walls 1, a bottom plate 2, three sides of the bottom plate 2 are respectively tightly connected with the three side walls 1, and the other side of the bottom plate 2 is adjacent to the side wall 1 adjacent thereto. The drainage structure 3 is formed by a rectangular tube, and the rectangular tube is equal to the side of the bottom plate 2, and the two ends thereof are respectively tightly connected with the two side walls 1. The upper side wall of the rectangular tube is arranged along the longitudinal direction thereof by a plurality of The water inlet 4 is formed by the water inlet hole 4, and the water outlet 5 is provided on the lower side wall of the rectangular tube.

During operation, the water in the aquarium, together with the fish manure and the watery grass deposited on the bottom of the tank, enters the inner cavity of the drainage structure 3 from the water inlet, and then is directly discharged from the water outlet 5, or is output to the water filtration device for filtration treatment, and then Returned to the fish tank through the pipeline.

Since the water inlet hole 4 on the drainage structure 3 is distributed along one side of the bottom plate 2, the influence surface of the water inlet of the water inlet covers the entire length of the side of the bottom plate 2, and the backflow of the filtered water is matched. Therefore, the impurities deposited on the bottom of the aquarium can be effectively discharged out of the aquarium, thereby creating conditions for keeping the water in the aquarium clean.

Example 2

In the second embodiment shown in FIG. 2, the drainage structure 3 is composed of an open-up U-shaped groove 31 and a long strip 32, and the side of the bottom plate 2 is tightly overlapped in the U-shaped groove. On the side panel, the thickness of the cover 32 is smaller than the thickness of the bottom plate 2, whereby a recess 6 which is equal to the side of the bottom plate 2 is formed above the cover 32.

In this embodiment, by providing the recess 6, the fish manure and the watery rotted leaves deposited on the bottom of the aquarium can be well collected, thereby further ensuring efficient discharge of impurities in the aquarium.

The overlapping connection between the side of the aquarium bottom plate 2 and the side vertical plate in the U-shaped groove in this embodiment can also be replaced by a butt connection, that is, the side of the bottom plate of the aquarium is tightly abutted with the outer surface of the side vertical plate of the U-shaped groove. Alternatively, the U-shaped groove opening may be disposed downward, so that the outer surface of the bottom wall of the U-shaped groove is lower than the upper surface of the bottom plate 2 of the aquarium to form the groove 6.

Example 3 In the second embodiment shown in FIG. 3, the drainage structure 3 is still in a rectangular tube structure, but the closed butt joint of the side of the aquarium bottom plate 2 and the rectangular tube in the first embodiment is changed into a closed lap joint. At the same time, the bottom plate 2 of the fish tank is tilted. Since the aquarium bottom plate 2 is overlapped with the rectangular tube, a groove 6 is formed above the rectangular tube.

A groove 6 of equal length is disposed above the drainage structure 3, and the bottom plate 2 is inclined, so that impurities such as fish manure and watery grass are automatically slid into the groove 6 along the upper surface of the bottom plate during deposition to the bottom of the fish tank. Therefore, the collection effect of impurities is improved, and conditions for the thorough removal of impurities are created.

Example 4

As shown in Fig. 4, in this embodiment, an L-shaped seal 33 is used to form a drainage structure 3 together with the lower surface of the aquarium bottom plate and the inner surface of the side wall, and the water inlet hole 4 is directly formed on the bottom plate 2 of the fish tank. This embodiment simplifies the structure of the aquarium while maintaining the effect of collecting and discharging impurities.

Example 5

As shown in FIG. 5, in this embodiment, the aquarium floor structure of the partial horizontal surface 21 and the partial inclined surface 22 is used, and at the same time, a movable flat plate 7 is disposed on the bottom plate 2, and corresponds to the drainage structure 3 on the movable flat plate 7. One side is machined with a plurality of water permeable holes 71 arranged along the length of the drainage structure. During the use of the aquarium, when the drainage structure 3 is drained, as the water is discharged, the movable plate 7 is turned over the water level above the suspended end of the bottom plate 2, and the intersection of the horizontal plane and the inclined surface on the bottom plate 2 is reversed. On the floor slope 22, until the drainage structure 3 stops draining, it is returned to the horizontal state. After the water permeable hole 71 is provided in the movable plate 7, when the movable plate is pressed against the inclined surface 22, the water inlet hole 4 is not closed to ensure smooth drainage.

After the movable plate 7 is set, since the movable plate 7 will have a tilting inclination when drained, the impurities deposited thereon will be dumped into the grooves above the drainage structure 3 as it is turned over, so this structure will remove the impurities in the fish tank. More thorough.

Example 6

As shown in Fig. 6, in this embodiment, the inclined surface 22 on the bottom plate 2 of the aquarium of the embodiment 5 is changed to the circular arc surface 23. With this change, the flip of the active tablet can be made smoother.

Example 7

As shown in FIG. 7, the bottom plate 2 of the fish tank in this embodiment is an arc having a low side and a middle height on both sides. The drainage structure 3 is disposed on both lower sides of the bottom plate 2, and the two sides of the bottom plate 2 are tightly overlapped on the drainage structure 3, and a groove is formed above the two drainage structures respectively. The aquarium bottom plate 2 is arranged in such an arc structure, and two drainage structures 3 are provided on both sides thereof to make the discharge of impurities in the fish tank more thorough.

Example 8

As shown in Figures 8, 9, and 10, a built-in filter cylinder is disposed in the fish tank, and the built-in filter cylinder is composed of a small compartment separated by an intermediate partition 9 at one end of the fish tank, and the intermediate partition 9 and the fish tank side on both sides thereof. The wall 1 and the aquarium floor 2 are hermetically connected, the upper partition 9 is flush with the side wall of the aquarium, and the drainage structure 3 is disposed across the intermediate partition 9. In the small compartment, the water deflector 9' divides the small compartment into two parts, the drainage structure 3 is located in the front part of the small compartment, and the plurality of through holes 8 provided thereon constitute the water outlet of the drainage structure, and the water is blocked. The upper edge of the plate 9' is lower than the upper edge of the intermediate partition 9. The portion of the small compartment that has no drainage structure is filled with the filter material 13, and the water pump 11 is disposed below the filter material 13. The outlet of the water pump 11 is connected to the through hole 10 of the intermediate partition 9 via the pipe 12 to prevent the fish tank. The water inside flows down into the water pump, and the through hole 10 is preferably higher than the water level in the fish tank.

During operation, the water in the fish tank enters the inner cavity of the drainage structure 3 from the water inlet hole 4, flows in the direction of the small compartment along the arrow B in the figure, and enters the front part of the small compartment from the water outlet 8 with the small compartment. In the first part of the room, the water level rises, and the water finally flows through the water deflecting plate 9' into the rear part of the small compartment along the arrow C in the figure, and penetrates from the upper surface of the filter material 13 to the lower side, and filters to penetrate the water pump. The water at the inlet 11 is returned to the aquarium outside the small compartment by the water pump 11 via the pipe 12 and the through hole 10. In this way, the filtration of the water in the aquarium is completed.

In the present embodiment, by providing an internal filter cylinder in the aquarium, the entire aquarium can be made compact together with the filter device, thereby facilitating the placement of the fish tank.

Example 9

As shown in FIG. 11, in this embodiment, a built-in water level control structure is provided in the fish tank, and the built-in water level control structure is constituted by a small compartment which is separated from the fish tank by an intermediate partition 9 in the fish tank, in the middle. The upper edge of the partition plate 9 is flush with the side wall of the aquarium, the drainage structure 3 is disposed across the intermediate partition plate 9, and the portion of the drainage structure 3 located in the small compartment is provided with a through hole communicating with the small compartment, and the through hole is configured The water outlet 8 of the drainage structure 3 is provided with a water blocking plate 9' separating the drainage structure 3 from other parts of the small compartment in the small compartment, the upper edge of the water blocking plate 9' is lower than the intermediate partition 9 There is no compartment in the compartment that is separated by the flap 9' A drain hole 14 is provided in the aquarium bottom plate 2 of the drain structure portion, and the drain hole 14 is in contact with the water filtration system. Compared with the eighth embodiment, the intermediate partition 9 is obliquely disposed in the fish tank, and the two vertical sides thereof are respectively tightly connected to the two side walls adjacent to the fish tank, thereby separating a small compartment having a triangular cross section in the fish tank, so that It can reduce the shielding of the fish tank by the intermediate partition and improve the effective viewing surface of the fish tank.

When in use, the water in the aquarium enters the inner cavity of the drainage structure 3 from the water inlet hole 4, and enters the front part of the small compartment from the water outlet 8, and as the water level rises in the front part of the small compartment, the water finally flows over the block. The water board 9' flows into the rear part of the cubicle and is connected to the water filtration system from the drain hole 14 on the bottom plate 1 of the fish tank, and is sent back to the fish tank after being filtered, and thus circulated, and the fish tank is completed. Filtration of water.

In the working process of the embodiment, the water is automatically discharged from the drainage hole 14 by gravity, and then sent to the fish tank by the pump after being processed by the filtering system. After the water level control structure is set in the fish tank, even if the circulating water pump fails, the water level in the fish tank is also It will only drop to the position of the flap, and will not drain all the water in the tank, thus ensuring the safety of the tank. Especially when using a filter system with an external filter cylinder, adjust the height of the water baffle to balance the total water volume above the minimum water level of the fish tank with the capacity of the external filter tank. Even if the pump does not work, it will not The water flows outside the aquarium.

Example 10

As shown in Fig. 12, the drainage structure 3 in the aquarium of the present invention can also be arranged in the form of a figure, that is, the aquarium floor 2 is inclined, the drainage structure 3 is disposed at the lowest side of the bottom plate 2, and the drainage structure 3 is made of a rectangular tube. The upper side wall is higher than the fish tank bottom plate 2, and the water inlet hole 4 is disposed on the side wall of the drainage structure 3.

For the inclined fish tank bottom plate, the water inlet hole is arranged on the side wall of the drainage structure and the fish tank bottom plate, so that the fish manure and the water grass rotten leaves sliding down the fish tank bottom plate can smoothly enter the water inlet hole, thereby facilitating the fish tank. Removal of impurities.

As shown in Fig. 13, a known aquaculture part 15 can also be provided in the aquarium of the present invention. The water filtration system of the aquarium of the present invention may be provided in a form as shown in Fig. 14 in addition to the type shown in the eighth embodiment.

The water filtration system shown in Fig. 14 is composed of an external filter cylinder 22, a closed filter 19, a water pump 20, a control valve, and a connecting pipe. The closed filter 19 is a closed structure in which a filter material is disposed and built in. There is a self-prepared water pump, the upper filter cylinder 22 is open above, and is filled with filter material, and an output port is arranged below the filter material, and the external filter cylinder 22 The output port is connected to the input port of the water pump 20 via the pipeline and the control valve 21, and the output port of the water pump 20 is connected to the input port of the closed filter 19 via the pipeline, and the output port of the closed filter 19 is connected to the fish tank via the pipeline 18, and the input port 24, two control valves 23, 25 are connected in parallel, wherein the output port of the control valve 23 is connected to the pipeline between the control valve 21 and the water pump 20 via a pipeline, and the output port 26 of the control valve 25 is disposed above the external filter cylinder 22, In order to directly input water into the external filter cylinder 22. The input port 24 may be the drain port 14 in the above-mentioned Embodiment 9, or may be the water outlet 5 on the drain structure 3 in Embodiments 1 to 6. The control valve 25 serves as a discharge valve at the same time.

The above external filtering device has two filtering working modes:

1. Close the control valve 23, open the control valves 25, 21, start the water pump 19, the water in the fish tank enters the external filter cylinder 22 from the output port 26, and the filtered water passes through the control valve 21, the water pump 20, and the closed filter The line 19 and the line 18 are returned to the aquarium and circulated in this manner. At this time, the self-contained water pump in the closed filter 19 does not operate.

2. The control valves 21, 25 are closed, the control valve 23 is opened, the water pump in the closed filter 19 is activated, and the water in the fish tank is sucked into the closed filter 19 via the control valve 23 and the water pump 20, and sent through the line 18. Go back to the fish tank, so cycle. At this time, the water pump 20 does not work.

In the above operation mode 1, when the water in the aquarium is too dirty to be drained, it can also be directly discharged into the other container by the outlet port 26, at which time the control valve 25 becomes the discharge valve.

The above working mode 1 is mainly used for filtering impurities deposited on the bottom of the fish tank, so as to avoid the breakage of fish manure, thereby ensuring effective filtration of impurities. Working mode 2 is mainly used to filter impurities suspended in water. Since the impurities suspended in the water are far less than the impurities deposited at the bottom of the fish tank, this working mode only needs to make the water pump in the closed filter with lower carrying capacity. Work can be. Working mode 2 is suitable for running at night.

Claims

Claim

An aquarium comprising a side wall and a bottom plate, wherein at least one side of the bottom plate of the aquarium is provided with a drainage structure having a length equal to the side, the drainage structure having an elongated cavity, The water inlet and the water outlet are connected with the cavity, wherein the water inlet is composed of a plurality of water inlet holes spaced along the length of the drainage structure and communicating with the fish tank, and the water outlet of the drainage structure is connected with the discharge valve. And/or in contact with a water filtration system, wherein the water filtration system filters the water output from the outlet of the drainage structure and returns it to the aquarium.

The aquarium according to claim 1, wherein the aquarium bottom plate has an arc shape with one side high and one side low, and the drainage structure is disposed along the lowest side of the aquarium bottom plate.

3. The aquarium according to claim 1, wherein the bottom plate of the aquarium is curved in a low height on both sides of the middle, and the lowest side of the bottom plate of the aquarium is provided with a drainage structure.

The aquarium according to claim 1, wherein the aquarium bottom plate has a flat plate structure, the bottom plate is disposed at a high side and is inclined at a low side, and the drainage structure is located at a lowest side of the bottom plate of the aquarium.

5. The aquarium according to claim 1, wherein a portion of the bottom plate of the aquarium is a horizontal plane, and another portion is a slope that slopes downward from a horizontal edge, the drainage structure being located at a lowest side of the bottom plate of the aquarium, the fish tank A movable flat plate is horizontally placed on the bottom plate, and the length and width of the flat plate are matched with the fish tank, and a plurality of through holes are arranged at one end of the flat plate corresponding to the drainage structure, and the intersection of the horizontal portion and the inclined portion of the bottom plate of the fish tank The drainage structure is parallel, and the position of the intersection is such that the flat plate is turned over at the intersection of the drainage structure and the horizontal state is restored when the drainage structure stops draining.

6. The aquarium according to claim 1, wherein the drainage structure is formed by a rectangular tube that is hermetically inserted between a side of the aquarium bottom plate and the side wall of the side aquarium, and an upper surface thereof The upper surface of the bottom plate of the fish tank is flush, and the two ends of the rectangular tube are respectively tightly connected to the side walls of the aquarium on both sides, and the water inlet hole is disposed on the upper side wall thereof.

7. The aquarium according to claim 1, wherein the drainage structure is formed by a rectangular tube that is hermetically inserted between the side of the aquarium bottom plate and the side wall of the side aquarium, and the upper surface thereof is high. The upper surface of the bottom plate of the fish tank is closed, and the two ends of the rectangular tube are respectively tightly connected with the side wall of the fish tank on both sides, and the water inlet hole is arranged in the drainage structure and the fish tank The side walls of the bottom plate are connected.

8. The aquarium according to claim 1, wherein the drainage structure is composed of an L-shaped seal, an aquarium bottom plate, and a fish tank side wall, and the two web edges of the L-shaped seal and the upper surface of the upper aquarium bottom plate respectively The inner surface of the side wall of the outer aquarium is hermetically connected, and the two ends thereof are respectively tightly connected with the side walls of the fish tanks on both sides, so that a cavity is formed below the side of the bottom plate of the fish tank, and the water inlet hole is disposed on the upper side of the cavity. The wall of the fish tank is on the bottom plate.

9. The aquarium according to claim 1, wherein the drainage structure is formed by a rectangular tube, the outer side of the rectangular tube is hermetically connected to the side wall of the fish tank, and the two ends of the rectangular tube are respectively tightly connected to the side walls of the fish tank on both sides. The side of the bottom plate of the fish tank is tightly overlapped on the upper side of the rectangular tube, and a space is left between the side of the bottom plate of the fish tank and the side wall of the side fish tank, and an opening upward groove is formed above the rectangular tube, and the water inlet hole is arranged On the bottom wall of the groove.

10. The aquarium according to claim 1, wherein the drainage structure comprises an elongated cover plate and a U-shaped groove, and an outer surface of the U-shaped groove outer vertical plate is hermetically connected to the side wall of the fish tank, The two ends are tightly connected to the side walls of the aquarium on both sides, the U-shaped slot opening is upward, the side of the bottom plate of the aquarium is tightly overlapped on the side vertical plate of the U-shaped groove, or is closely connected with the outer surface of the side vertical plate of the U-shaped groove. The gap between the side of the bottom plate of the fish tank and the side wall of the fish tank is not less than the width of the long strip cover, and the long strip cover is sealed and sealed on the U-shaped groove, and forms a cavity together with the U-shaped groove. The length of the long strip cover is smaller than the thickness of the bottom plate of the aquarium, and the upper side of the bottom plate of the fish tank and the side wall of the fish tank together form an opening upward groove, and the water inlet hole is disposed on the long strip cover.

The aquarium according to any one of claims 1 to 10, wherein the water filtration system is composed of a built-in filter cylinder, a filter material, and a water pump, and the built-in filter cylinder uses an intermediate partition at one end of the fish tank. The separated small compartment is formed, the middle partition plate is flush with the side wall of the fish tank, the drainage structure is disposed across the intermediate partition, and the portion of the drainage structure located in the small compartment is provided with a communication with the small compartment a through hole, which constitutes a water outlet of the drainage structure, and a water retaining plate separating the drainage structure from the other part of the small compartment in the small compartment near the end of the drainage structure, the water retaining plate is lower than the middle interval a plate, a portion of the small compartment that is separated by a water baffle and has no drainage structure is filled with a filter material, and a water pump is disposed under the filter material, the water pump is discharged The mouth pipe is connected to the through hole provided in the middle partition plate and connected with the fish tank, and the water discharged from the water outlet of the drainage structure flows over the water baffle and flows into the portion of the small compartment with the filter material, and the inflowing water is subsequently The upper side of the filter material is filtered and penetrated downwards, and finally it is sent by the water pump through the through hole provided in the middle partition plate to the aquarium outside the small compartment.

The aquarium according to any one of claims 1 to 10, wherein the fish tank is provided with a built-in water level control structure, which is separated from the fish tank by an intermediate partition in the fish tank. A small compartment is formed, the middle partition plate is flush with the side wall of the aquarium, the drainage structure is disposed across the intermediate partition, and the portion of the drainage structure located in the small compartment is provided with a communication with the small compartment a through hole which constitutes a water outlet of the drainage structure, and a small water gap is arranged in the small compartment to separate the drainage structure from the other parts of the small compartment, the water retaining plate is lower than the intermediate partition, and the small partition A drain hole is provided in the bottom plate of the fish tank having no drainage structure separated by the water retaining plate, and the drain hole is connected to the water filtering system.

The aquarium according to any one of claims 1 to 10, wherein the water filtration system is composed of an external filter cylinder, a closed filter, a water pump, a control valve, and a connecting pipe, wherein the closed filter The device is a closed structure, and has a filter material and a built-in self-prepared water pump. The external filter cylinder is open at the top, and the filter material is filled therein, and an output port is arranged below the filter material, and the output port of the external filter cylinder passes through the pipeline. The control valve is connected to the input port of the water pump, and the output port of the water pump is connected to the input port of the closed filter through the pipeline, and the output port of the closed filter is connected to the fish tank through the pipeline, and the water outlet of the drainage structure is connected to the water outlet. a control valve, wherein an output port of one control valve is connected to a pipeline downstream of the control valve at an output port of the external filter cylinder through a pipeline, and an output port of the other control valve is disposed above the external filter cylinder to directly input water to the In the external filter cylinder that is open above.

14. The aquarium according to claim 12, wherein the water filtration system is composed of an external filter cylinder, a closed filter, a water pump, a control valve, and a connecting pipe, wherein the closed filter is a closed structure. The filter material is provided therein and has a built-in water pump, and the external filter cylinder is open at the top, and the filter material is filled therein, and an output port is arranged under the filter material, and the output port of the external filter cylinder passes through the pipeline, the control valve and the water pump. The input port is connected, the water pump output port is connected to the input port of the closed filter through the pipeline, and the output port of the closed filter is connected to the fish tank through the pipeline, where the drain hole is Two control valves are connected in parallel, and one of the output ports of the control valve is connected to the pipeline downstream of the control valve at the output port of the external filter cylinder through the pipeline, and the output port of the other control valve is disposed above the external filter cylinder so as to directly The water is fed into an external filter cylinder that is open above.

The aquarium according to any one of claims 6 to 10, wherein the water outlet of the drainage structure is disposed on a lower side wall or a inner side wall thereof, and the water outlet is connected to the discharge valve, and / or connected to the water filtration system.

16. The aquarium of claim 1 wherein the bottom of the aquarium is further provided with a component dedicated to breeding water plants.

17. An aquarium comprising a side wall and a bottom plate, wherein the bottom plate of the aquarium is curved in the middle and high on both sides, and a drainage structure spanning the bottom plate is arranged along the curved bottom of the bottom plate, the drainage structure having a length a strip-shaped cavity is provided with a water inlet and a water outlet communicating with the cavity, wherein the water inlet is composed of a plurality of water inlet holes spaced along the length of the drainage structure and communicating with the fish tank, and the water inlet hole The water outlet is lower than or perpendicular to the upper surface of the bottom plate, the water outlet of the drainage structure is connected to the discharge valve, and/or is connected to the water filtration system, wherein the water filtration system outputs water to the water outlet of the drainage structure. After filtering, return it to the aquarium.