Central drainage assembly and fishpond with same
The design of the central drainage system solved the problem of water level drop after power failure in the aquaculture pond, achieving stable water level control and isolation of fish fry, thus improving the system's reliability and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN PROGIFT AQUA-TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
There is a risk that the existing aquaculture ponds will be drained of water after a power outage, leading to the death of fish. The existing drainage system is unable to effectively maintain the water level.
Design a central drainage component, including a drainage connection pipe and a drainage liquid retention component, to control the water level at the drainage outlet to prevent the water level from being too low or too high, and to ensure water level stability by combining the mesh central drainage pipe to block fish fry.
This effectively prevents the water level in the aquaculture ponds from dropping after a power outage, protects the fish, improves the reliability and stability of the system, and enhances operation and maintenance efficiency.
Smart Images

Figure CN224219226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to a central drainage component and a fish pond having the same. Background Technology
[0002] The drainage system of the aquaculture pond is a crucial part of the aquaculture process. It plays a key role in maintaining the water quality of the pond and ensuring the healthy growth of the cultured organisms. By properly coordinating the inflow and outflow rates, the system can achieve water circulation while maintaining the water volume in the pond, and remove impurities and fish feces from the pond, thus maintaining the water quality.
[0003] However, most existing aquaculture ponds have outlets at the bottom, with the outlet height lower than or equal to the bottom of the pond. This is to discharge impurities and feces with the water flow and prevent the accumulation of impurities and feces. However, after a power outage, the water intake of the aquaculture pond stops, while the drainage continues. There is a risk that the water in the aquaculture pond will be drained, leading to the death of the fish in the pond.
[0004] Therefore, there is a need for a central drainage component that can maintain the water level in the pool after a power outage, and a fish pond incorporating the component. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a central drainage component and a fish pond having the same.
[0006] The technical solution of this utility model is as follows:
[0007] A central drainage assembly for draining a pool body, wherein the bottom of the pool body is provided with a bottom drain hole, the central drainage assembly includes a drain connecting pipe disposed at the bottom of the pool body, a first end of the drain connecting pipe covering and communicating with the bottom drain hole, and a second end of the drain connecting pipe being connected to a drain liquid retaining component, the drain liquid retaining component including a drain inlet located at the bottom and a drain outlet located at the top, the drain inlet communicating with the drain connecting pipe, and the drain outlet being connected to a main drain pipe.
[0008] As a further improvement of this utility model, the central drainage assembly includes a central drainage pipe disposed in the pool body, one end of the central drainage pipe being inserted into the bottom drainage hole, and the side wall of the central drainage pipe being provided with a plurality of mesh holes.
[0009] As a further improvement of this utility model, the end of the central drain pipe away from the drain connecting pipe is blocked or the end of the central drain pipe away from the drain connecting pipe extends beyond the water surface.
[0010] As a further improvement of this utility model, a first drainage seal is provided between the central drainage pipe and the bottom drainage hole.
[0011] As a further improvement of this utility model, the drainage and liquid retention component includes a drainage outer sleeve communicating with the drainage connecting pipe and a drainage inner sleeve passing through the drainage outer sleeve. A drainage channel is provided between the drainage inner sleeve and the drainage outer sleeve. The bottom end of the drainage outer sleeve is sealed to the side wall of the drainage inner sleeve. The drainage outlet is located at the top of the drainage inner sleeve. The bottom of the drainage inner sleeve is communicating with the main drainage pipe. The drainage outlet is lower than the top end of the drainage outer sleeve.
[0012] As a further improvement of this utility model, the drainage outlet is the top open opening of the drainage inner sleeve, or the drainage overflow port provided on the upper side wall of the drainage inner sleeve.
[0013] As a further improvement of this utility model, the bottom end of the inner drain sleeve is detachably connected to the main drain pipe.
[0014] As a further improvement of this utility model, the top of the drainage inner sleeve is provided with a handle.
[0015] As a further improvement of this utility model, the drainage and liquid retention component includes a drainage tank, the drainage inlet is located at the bottom of the drainage tank, the drainage outlet is located at the top of the drainage tank, the bottom of the drainage tank is also provided with a quick drainage port, and the quick drainage port is provided with a detachable drainage sealing component.
[0016] A fish pond includes a pond body, a water inlet assembly, and a central drainage assembly as described above.
[0017] According to the above-described solution, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model can control and adjust the water level in the pond through the drainage and liquid retention component, which can prevent the water in the aquaculture pond from being drained after the system is powered off, avoid the risk of fish death in the aquaculture pond, and improve the overall reliability and stability.
[0019] 2. This utility model uses a central drainage pipe with mesh holes on its surface to block fish fry during drainage, preventing them from being discharged with the water flow from the bottom drainage hole. This effectively isolates and restricts the fish fry, further improving the overall reliability. Attached Figure Description
[0020] Figure 1 This is a structural schematic diagram of the present invention from a first angle;
[0021] Figure 2 This is a structural schematic diagram of the present invention from a second angle;
[0022] Figure 3 This is a schematic diagram of the structure of the first embodiment of the drainage and liquid retention component of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the second embodiment of the drainage and liquid retention component of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the fish pond of this utility model.
[0025] In the diagram: 2. Pool body; 21. Bottom drain hole; 3. Water inlet assembly; 6. Central drain assembly; 61. Drain connection pipe; 62. Drain inlet; 63. Drain outlet; 64. Central drain pipe; 641. Mesh; 65. Drain outer sleeve; 66. Drain inner sleeve; 661. Handle; 67. Drain channel; 68. Drain box; 681. Quick drain outlet; 8. Main drain pipe. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] See Figure 1 and Figure 2 This utility model provides a central drainage assembly for draining water from a pool 2. The bottom of the pool 2 is provided with a bottom drainage hole 21. The central drainage assembly 6 includes a drainage connecting pipe 61 disposed at the bottom of the pool 2. The first end of the drainage connecting pipe 61 covers and communicates with the bottom drainage hole 21, and the second end of the drainage connecting pipe 61 is connected to a drainage liquid retention component. The drainage liquid retention component includes a drainage inlet 62 located at the bottom and a drainage outlet 63 located at the top. The drainage inlet 62 communicates with the drainage connecting pipe 61, and the drainage outlet 63 is connected to a main drainage pipe 8. Water in the pool 2 flows into the drainage connecting pipe 61 from the bottom drainage hole 21 and enters the drainage liquid retention component from the drainage inlet 62. The water accumulates in the drainage liquid retention component. The water level in the pool 2 and the height of the drainage outlet 63 are in the following two states:
[0030] State 1: When the system is working normally, the water level in the tank 2 is higher than the drain outlet 63, the water in the drain liquid retaining component exceeds the drain outlet 63 and is discharged from the drain outlet 63, that is, the water in the tank 2 is discharged from the drain outlet 63 for normal drainage.
[0031] State 2: When the system is powered off, no water enters the tank 2. As the water is discharged from the drain outlet 63, the liquid level in the tank 2 gradually decreases. When the liquid level in the tank 2 is lower than the height of the drain outlet 63, the water in the drain liquid retainer is also lower than the height of the drain outlet 63. In other words, the water in the tank 2 can no longer be discharged, thus stabilizing the water volume in the tank 2.
[0032] This invention can control and adjust the water level in the pool 2 through the drainage and liquid retention component, that is, keep the liquid level in the pool 2 below the drainage outlet 63. This can prevent the water level in the pool 2 from being too high, and can also prevent the water in the pool 2 from being drained after the system is powered off, thereby avoiding the risk of fish death in the pool 2 and improving the overall reliability and stability.
[0033] As one embodiment of this utility model, the central drainage component 6 includes a central drainage pipe 64 disposed within the pool body 2. One end of the central drainage pipe 64 is inserted into the bottom drainage hole 21. Preferably, the central drainage pipe 64 is made of a high-strength corrosion-resistant material. Its lower end is rotatably connected to the bottom drainage hole 21 through a bearing structure or a threaded structure, or forms an interference fit with the bottom drainage hole 21 through an elastic component. This ensures the sealing between the central drainage pipe 64 and the bottom drainage hole 21 and facilitates subsequent maintenance operations. The side wall of the central drainage pipe 64 is provided with several mesh holes 641. The mesh holes 641 allow water and impurities to pass through while preventing fish fry from passing through. This utility model, through the central drainage pipe 64 with mesh holes 641 on its surface, can block fish fry during drainage, preventing them from being discharged with the water flow from the bottom drainage hole 21. This effectively isolates and restricts the fish fry, significantly improving the operational efficiency of the aquaculture system and further enhancing the overall reliability.
[0034] As one embodiment of this utility model, the end of the central drain pipe 64 away from the drain connection pipe 61 is blocked or the end of the central drain pipe 64 away from the drain connection pipe 61 extends beyond the water surface, which can prevent fish fry from entering from the end of the central drain pipe 64 away from the drain connection pipe 61, further achieving isolation and restriction of fish fry, and further improving the reliability of operation.
[0035] As one embodiment of this utility model, a first drainage seal is provided between the central drainage pipe 64 and the bottom drainage hole 21. The first drainage seal can be selected with appropriate sealing materials and sealing structures according to specific usage requirements, such as sealant applied between the central drainage pipe 64 and the bottom drainage hole 21, or sealing rings, rubber parts, elastic gaskets, etc. set between the central drainage pipe 64 and the bottom drainage hole 21. This can further improve the sealing performance between the central drainage pipe 64 and the bottom drainage hole 21, prevent water leakage at the contact part between the central drainage pipe 64 and the bottom drainage hole 21, avoid unnecessary impact on the breeding of fish fry, and improve the overall stability and reliability.
[0036] See Figure 3 As an embodiment of this utility model, the drainage and liquid retention component includes a drainage outer sleeve 65 connected to the drainage connection pipe 61 and a drainage inner sleeve 66 passing through the drainage outer sleeve 65. A drainage channel 67 is provided between the drainage inner sleeve 66 and the drainage outer sleeve 65. The bottom end of the drainage outer sleeve 65 is sealed to the side wall of the drainage inner sleeve 66. The drainage outlet 63 is located at the top of the drainage inner sleeve 66. The bottom of the drainage inner sleeve 66 is connected to the main drainage pipe 8. The drainage outlet 63 is lower than the top end of the drainage outer sleeve 65. The water in the pool 2 flows through the drainage connection pipe 61 into the drainage outer sleeve 65, then flows upward along the drainage channel 67, and finally enters the drainage inner sleeve 66 through the drainage outlet 63 and flows into the main drainage pipe 8, completing the drainage.
[0037] As one embodiment of this utility model, the drainage outlet 63 can be selected with appropriate positions and structures according to specific usage requirements, such as the following two positional structures:
[0038] Structure 1: Drainage outlet 63 is the top open opening of drainage inner sleeve 66. Water flows up to the top of drainage inner sleeve 66 and enters drainage inner sleeve 66 from the top open opening.
[0039] Structure 2: The drainage outlet 63 is a drainage overflow port set on the upper side wall of the drainage inner sleeve 66. Water can enter the drainage inner sleeve 66 when it rises to the drainage overflow port, without having to rise to the top of the drainage inner sleeve 66.
[0040] In one embodiment of this utility model, the bottom end of the inner drain sleeve 66 is detachably connected to the main drain pipe 8. When the pool 2 needs to be drained, the operator removes the inner drain sleeve 66, and the water in the pool 2 passes through the drain connecting pipe 61 and the drain outer sleeve 65 in sequence, and immediately enters the main drain pipe 8 for discharge. This cancels the liquid level stabilization function in the pool 2 and enables rapid drainage of the pool 2. The operation is simple. Preferably, according to specific usage requirements, the inner drain sleeve 66 and the main drain pipe 8 can adopt the following two connection structures:
[0041] Structure 1: The outer wall of the inner drain sleeve 66 is provided with external threads, and the main drain pipe 8 is provided with internal threads. The inner drain sleeve 66 and the main drain pipe 8 are connected by threads. Thread sealant is applied between the internal and external threads to further improve the sealing between the two.
[0042] Structure 2: The inner drain sleeve 66 is provided with an elastic element on its side wall. The inner drain sleeve 66 and the main drain pipe 8 are fitted with an interference fit. The inner drain sleeve 66 is inserted into the main drain pipe 8 through the elastic deformation of the elastic element. At the same time, the elastic element can also further improve the sealing between the inner drain sleeve 66 and the main drain pipe 8.
[0043] As one embodiment of this utility model, the drainage inner sleeve 66 is replaceable and multiple sleeves are provided. The multiple drainage inner sleeves 66 have different lengths. According to specific usage requirements, the staff can adjust the water level in the pool 2 by replacing the drainage inner sleeve 66 and selecting a suitable length of drainage inner sleeve 66, which can meet the needs of various water level heights and improve the overall applicability.
[0044] As an embodiment of this utility model, the top of the drainage inner sleeve 66 is provided with a handle 661. When the worker is disassembling and assembling the drainage inner sleeve 66, the handle 661 can provide the worker with a point of force, making the disassembly and assembly work easy and convenient, and improving the convenience of disassembly and assembly.
[0045] See Figure 4 As an embodiment of this utility model, the drainage and liquid retention component includes a drainage tank 68, a drainage inlet 62 located at the bottom of the drainage tank 68, and a drainage outlet 63 located at the top of the drainage tank 68. The bottom of the drainage tank 68 also has a quick-drainage port 681. A detachable drainage plug is provided inside the quick-drainage port 681. When liquid retention is required, the drainage plug seals the quick-drainage port 681, allowing water to enter the drainage tank 68 from the drainage inlet 62 and exit from the drainage outlet 63. When liquid retention is not required, the drainage plug is removed, allowing water to exit from the quick-drainage port 681. Preferably, the drainage plug has external threads, and the quick-drainage port 681 has internal threads. The drainage plug and the quick-drainage port 681 are connected by threads. Preferably, a sealant is provided between the drainage plug and the quick-drainage port 681, which further improves the sealing performance between them, preventing water leakage from the contact area and improving overall operational reliability and stability.
[0046] See Figure 5 This utility model provides a fish pond, including a pond body 2, a water inlet component 3, and a central drainage component 6 as described above. The water inlet component 3 and the central drainage component 6 provide water inlet and drainage functions to the pond body 2 respectively, while enabling the water flow in the pond body 2 to circulate. This prevents oil, impurities and other contaminants from accumulating in the pond body 2 for a long time, ensuring that the water in the pond body 2 is clean and tidy, and providing a good breeding environment for fish fry.
[0047] In summary, this utility model provides a central drainage component and a fish pond incorporating it. The drainage and liquid retention components can control and adjust the water level within the pond 2, maintaining it below the drainage outlet 63. This prevents the water level from becoming too high and avoids the pond 2 from drying out after a power outage, thus mitigating the risk of fish mortality and improving overall reliability and stability. Furthermore, the central drainage pipe 64 with mesh holes 641 on its surface can prevent fish fry from being discharged with the water flow through the bottom drainage hole 21, thus protecting the fish fry. Effective isolation and restriction significantly improve the operation and maintenance efficiency of the aquaculture system and further enhance its overall reliability. The bottom end of the drainage inner sleeve 66 is detachably connected to the main drainage pipe 8. By assembling and disassembling the drainage inner sleeve 66, the liquid retention function and the rapid drainage function can be switched, making operation convenient. The drainage inner sleeve 66 is replaceable and multiple sleeves are provided. The lengths of the multiple drainage inner sleeves 66 are different. According to specific usage needs, the staff can adjust the water level in the tank 2 by replacing the drainage inner sleeve 66 and selecting the appropriate length. This can meet the needs of various water level heights and improve the overall applicability.
[0048] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A central drainage assembly for draining water from a pool body (2), wherein the bottom of the pool body (2) is provided with a bottom drainage hole (21), characterized in that, The central drainage assembly (6) includes a drainage connection pipe (61) disposed at the bottom of the pool body (2). The first end of the drainage connection pipe (61) covers and communicates with the bottom drainage hole (21). The second end of the drainage connection pipe (61) is connected to a drainage liquid retention component. The drainage liquid retention component includes a drainage inlet (62) located at the bottom and a drainage outlet (63) located at the top. The drainage inlet (62) communicates with the drainage connection pipe (61), and the drainage outlet (63) is connected to the main drainage pipe (8).
2. The central drainage assembly according to claim 1, characterized in that, The central drainage assembly (6) includes a central drainage pipe (64) disposed in the pool body (2), one end of the central drainage pipe (64) is inserted into the bottom drainage hole (21), and the side wall of the central drainage pipe (64) is provided with a plurality of mesh holes (641).
3. The central drainage assembly according to claim 2, characterized in that, The end of the central drain pipe (64) away from the drain connection pipe (61) is blocked, or the end of the central drain pipe (64) away from the drain connection pipe (61) extends beyond the water surface.
4. The central drainage assembly according to claim 2, characterized in that, A first drainage seal is provided between the central drainage pipe (64) and the bottom drainage hole (21).
5. The central drainage assembly according to claim 1, characterized in that, The drainage and liquid retention component includes a drainage outer sleeve (65) connected to the drainage connecting pipe (61) and a drainage inner sleeve (66) passing through the drainage outer sleeve (65). A drainage channel (67) is provided between the drainage inner sleeve (66) and the drainage outer sleeve (65). The bottom end of the drainage outer sleeve (65) is sealed with the side wall of the drainage inner sleeve (66). The drainage outlet (63) is located at the top of the drainage inner sleeve (66). The bottom of the drainage inner sleeve (66) is connected to the main drainage pipe (8). The drainage outlet (63) is lower than the top end of the drainage outer sleeve (65).
6. The central drainage assembly according to claim 5, characterized in that, The drainage outlet (63) is the top open opening of the drainage inner sleeve (66), or the drainage overflow outlet provided on the upper side wall of the drainage inner sleeve (66).
7. The central drainage assembly according to claim 5, characterized in that, The bottom end of the inner drain sleeve (66) is detachably connected to the main drain pipe (8).
8. The central drainage assembly according to claim 7, characterized in that, The top of the drain inner sleeve (66) is provided with a handle (661).
9. The central drainage assembly according to claim 1, characterized in that, The drainage and liquid retention component includes a drainage tank (68), a drainage inlet (62) located at the bottom of the drainage tank (68), a drainage outlet (63) located at the top of the drainage tank (68), and a quick drainage port (681) located at the bottom of the drainage tank (68). A detachable drainage plug is provided inside the quick drainage port (681).
10. A fish pond, characterized in that, It includes a pool body (2), a water inlet assembly (3), and a central drainage assembly (6) as described in any one of claims 1-9.