Novel fishpond water changing device

Abstract

The utility model provides a novel fishpond water changing device which comprises a pipe body, the pipe body is composed of a water inlet pipe, a water outlet pipe and a communicating pipe, the communicating pipe enables the water inlet pipe and the water outlet pipe to be communicated, when the pipe body is arranged in a fishpond, the water inlet pipe is located on the inner side of the fishpond, the lower end of the water inlet pipe extends to the bottom of the fishpond, and the water outlet pipe is located on the outer side of the fishpond; a first valve is arranged at the upper end of the water inlet pipe, a second valve is arranged at the lower end of the drainage pipe, the flow speed of drainage of the fishpond is controlled by adjusting the second valve, a water injection pipe is connected to the upper end of the communicating pipe and provided with a fourth valve, and water can be injected into the communicating pipe and air in the communicating pipe can be discharged by opening the valves. According to the siphon principle, water in the fishpond is discharged out of the fishpond along the pipe body, the flowing speed of drained water in the fishpond is controlled by adjusting the second valve, and fry are prevented from being sucked by mistake and injured. In addition, a limiting pipe and a third valve are arranged above the water inlet pipe, the lowest water level of the fish pond is controlled, and the phenomenon of fish fry death caused by siphon dry pond is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fish pond water changing devices, in particular to a novel fish pond water changing device. Background Art

[0002] Newly hatched fry are small and have a weak ability to adapt to the environment. They are mainly fed with plankton bait and high-protein micro-particle feed and cultivated at a high density. A large amount of leftover bait and fry excrement are produced in the fish pond every day, and the water quality is prone to deterioration, which poses a serious threat to the growth and safety of the fry over time. In production, the death of fry due to deterioration of water quality often occurs. In order to solve the above problems, it is necessary to change the water in the fish pond regularly. Traditional fish ponds use fixed bottom drainage or pipe drainage, which requires pre-buried pipes before the construction of the fish pond. The construction cost is high, the process is complicated, the sewage pipe is fixed, and the sewage discharge effect is not satisfactory. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a novel fish pond water changer, which is suitable for any fish pond, has a low production cost, can be moved to different positions in the fish pond to absorb sewage and drain water, and the water change and sewage discharge efficiency are significantly improved. According to the needs, several combinations can be made to speed up the water change efficiency of the fish pond, ensure the stability of water quality during the fry cultivation process, and improve the survival rate of the fry.

[0004] The utility model is achieved in this way:

[0005] The utility model provides a novel fish pond water changer, comprising a pipe body with an inverted U-shaped structure, the pipe body is composed of a water inlet pipe, a drain pipe and a connecting pipe, the connecting pipe connects the water inlet pipe and the drain pipe, when the pipe body is placed in the fish pond, the water inlet pipe is located inside the fish pond, and the lower end of the water inlet pipe extends to the bottom of the fish pond, and the drain pipe is located outside the fish pond;

[0006] A first valve is provided at the lower end of the water inlet pipe, and a second valve is provided at the lower end of the drain pipe. The flow rate of the fish pond drainage is controlled by adjusting the second valve. A water injection pipe is connected to the upper end of the connecting pipe, and a fourth valve is provided on the water injection pipe. Water can be injected into the connecting pipe by opening the fourth valve to discharge the air in the water changer.

[0007] Furthermore, a limiting device is connected to the side of the water inlet pipe, and the limiting device includes a limiting pipe connected to the water inlet pipe, and a third valve is arranged on the limiting pipe.

[0008] Furthermore, a first filter screen with a cylindrical structure is connected to the water inlet of the water inlet pipe, and a second filter screen with a cylindrical structure is connected to the water inlet of the limiting pipe.

[0009] Furthermore, the first filter screen and the second filter screen are both 40-mesh stainless steel screens.

[0010] Furthermore, the limiting pipe and the water injection pipe are both made of PVC pipes with a diameter of 20 mm.

[0011] Furthermore, the water inlet pipe, connecting pipe and drain pipe are made of PVC pipes with a diameter of 50 mm.

[0012] The advantages of the utility model are:

[0013] 1. By setting the fourth valve, it is convenient to fill the water changer with water, and put the fish pond in the water inlet pipe. Through the siphon principle, the water in the fish pond is discharged to the outside of the pond along the pipe body, and by adjusting the opening of the second valve, the flow rate of the fish pond drainage can be reduced, thereby avoiding the fry from being injured by siphon.

[0014] 2. A limit device is set. When the water level in the fish pond drops to the limit pipe, air enters the cavity of the pipe body and automatically cuts off the flow, ensuring the safety of water change in the fry pond;

[0015] 3. The water changer is made of PVC pipes, which is low-cost and convenient for multiple pools to share. You can also use several water changers in one pool at the same time. When the cavity is full of water, close the four valves at the same time, and it can be moved to any pool to restart the water change work. The operation is convenient and the water change is safe.

[0016] 4. This water changer can be moved to different positions in the fish pond to absorb sewage and drain water. The efficiency of water change and sewage discharge has been significantly improved. According to needs, it can also be combined in several ways to speed up the water change efficiency of the fish pond, ensure the stability of water quality during the fry cultivation process, and improve the survival rate of the fry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a novel fish pond water changer of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Pipe body; 11. Water inlet pipe; 12. Drain pipe; 13. Connecting pipe; 2. First valve; 3. Second valve; 4. Water injection pipe; 5. Fourth valve; 6. Limit device; 61. Limit pipe; 62. Third valve; 7. First filter screen; 8. Second filter screen; 9. Fish pond. DETAILED DESCRIPTION

[0021] See also Figure 1The utility model provides a novel fish pond water changer, comprising a pipe body 1 with an inverted U-shaped structure, the pipe body 1 is composed of a water inlet pipe 11, a drain pipe 12 and a connecting pipe 13, the connecting pipe 13 connects the water inlet pipe 11 and the drain pipe 12, when the pipe body 1 is placed in a fish pond 9, the water inlet pipe 11 is located inside the fish pond, and the lower end of the water inlet pipe 11 extends to the bottom of the fish pond, and the drain pipe 12 is located outside the fish pond;

[0022] A first valve 2 is provided at the lower end of the water inlet pipe 11, and a second valve 3 is provided at the lower end of the drainage pipe 12. The flow rate of the fish pond drainage is controlled by adjusting the second valve 3. The upper end of the connecting pipe 13 is connected to a water injection pipe 4, and the water injection pipe 4 is provided with a fourth valve 5. By opening the fourth valve 5, water can be injected into the connecting pipe 13 to discharge the air in the water changer.

[0023] Specifically, a limiting device 6 is also connected to the side of the water inlet pipe 11, and the limiting device 6 includes a limiting pipe 61 connected to the water inlet pipe 11, and a third valve 62 is arranged on the limiting pipe 61. The setting height of the limiting pipe 61 is set accordingly according to the safe water level height in the fish pond 9. When the water level of the fish pond drops to the position of the limiting pipe 61, air enters the water changer cavity and automatically cuts off the flow, thereby ensuring the water level safety of the fish pond 9.

[0024] Specifically, a first filter screen 7 with a cylindrical structure is connected to the water inlet of the water inlet pipe 11, and a second filter screen 8 with a cylindrical structure is connected to the water inlet of the limit pipe 61. The first filter screen 7 and the second filter screen 8 prevent the fry from being discharged from the fish pond along with the water flow.

[0025] Specifically, the mesh numbers of the first filter screen 7 and the second filter screen 8 are both 40-mesh stainless steel screens.

[0026] Specifically, the position limiting pipe 61 and the water injection pipe 4 are both made of PVC pipes with a diameter of 20 mm.

[0027] Specifically, the water inlet pipe 11, the connecting pipe 13 and the drain pipe 12 are made of PVC pipes with a diameter of 50 mm.

[0028] The limit pipe 61, the water injection pipe 4, the water inlet pipe 11, the connecting pipe 13 and the drain pipe 12 made of PVC pipe are low in cost and light, and can be easily moved to other fish ponds to restart the water changing work.

[0029] A specific application of the utility model is:

[0030] The water changer is installed in a fish pond that needs water change. The water inlet pipe 11 is placed in the fish pond, and the lower end of the water inlet pipe 11 is located on the side close to the bottom of the fish pond. The specific steps of water change are as follows:

[0031] S1. Close the first valve 2, the second valve 3 and the third valve 62, open the fourth valve 5, and fill the tube body 1 with water from the outside through the water injection pipe 4. Gently shake the water changer to remove all bubbles in the inner cavity of the water changer to ensure that no bubbles remain in the water changer, and then close the fourth valve 5.

[0032] S2. After the water inside the water changer is filled with water, the first valve 2 is opened first, and then the second valve 3 is opened. The water in the fish pond is discharged to the outside of the fish pond along the pipe body 1 through the siphon principle. In addition, the second valve 3 can be adjusted to reduce the flow rate of the fish pond drainage according to the flow rate of the drainage to avoid excessive suction, which may cause the nearby fry to be accidentally sucked in and injured.

[0033] S3, and the third valve 62 can also be opened, and the limit device 6 is used to prevent the water level in the fish pond from being too low. When the water level in the fish pond drops to the position where the limit pipe 61 is located, air enters the water changer cavity and automatically cuts off the flow, ensuring the water level safety of the fish pond.

[0034] When the water changer stops siphoning and the fish pond is filled with water, the water changer can be placed in the fish pond to restart the water changer to change water as needed. When changing water, steps S1 to S3 are performed.

[0035] Alternatively, the water changer is moved to another fish pond to perform water changing operation. When changing water, steps S1 to S3 are also performed.

[0036] The advantages of the utility model are as follows:

[0037] 1. By setting the fourth valve, it is convenient to fill the water changer with water, and put the fish pond in the water inlet pipe. Through the siphon principle, the water in the fish pond is discharged to the outside of the pond along the pipe body, and by adjusting the opening of the second valve, the flow rate of the fish pond drainage can be reduced to avoid excessive suction, which may cause nearby fry to be accidentally sucked in and injured.

[0038] 2. A limit device is set. When the water level in the fish pond drops to the limit pipe, air enters the cavity of the pipe body and automatically cuts off the flow, ensuring the safety of water change in the fry pond;

[0039] 3. The water changer is made of PVC pipes, which is low-cost and convenient for sharing with multiple pools. After the cavity is filled with water, the four valves are closed at the same time. It can be moved to any pool and the water change work can be restarted. The operation is convenient and the water change is safe.

[0040] 4. This water changer can be moved to different positions in the fish pond to absorb sewage and drain water. The efficiency of water change and sewage discharge has been significantly improved. According to needs, it can also be combined in several ways to speed up the water change efficiency of the fish pond, ensure the stability of water quality during the fry cultivation process, and improve the survival rate of the fry.

[0041] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A new type of fish pond water changer, characterized by: The invention comprises a pipe body with an inverted U-shaped structure, the pipe body is composed of a water inlet pipe, a drain pipe and a connecting pipe, the connecting pipe connects the water inlet pipe and the drain pipe, when the pipe body is placed in the fish pond, the water inlet pipe is located inside the fish pond, and the lower end of the water inlet pipe extends to the bottom of the fish pond, and the drain pipe is located outside the fish pond; A first valve is provided at the lower end of the water inlet pipe, and a second valve is provided at the lower end of the drainage pipe. The flow rate of the fish pond drainage is controlled by adjusting the second valve. A water injection pipe is connected to the upper end of the connecting pipe, and the water injection pipe is provided with a fourth valve. The fourth valve is opened to inject water into the connecting pipe to discharge the air in the water changer.

2. A novel fish pond water changer as claimed in claim 1, characterized in that: A limiting device is also connected to the side of the water inlet pipe. The limiting device includes a limiting pipe connected to the water inlet pipe. A third valve is arranged on the limiting pipe.

3. A novel fish pond water changer as claimed in claim 2, characterized in that: A first filter screen with a cylindrical structure is connected to the water inlet of the water inlet pipe, and a second filter screen with a cylindrical structure is connected to the water inlet of the limiting pipe.

4. A novel fish pond water changer as claimed in claim 3, characterized in that: The first filter screen and the second filter screen are both 40-mesh stainless steel screens.

5. A novel fish pond water changer as claimed in claim 2, characterized in that: The limiting pipe and the water injection pipe are both made of PVC pipes with a diameter of 20 mm.

6. A novel fish pond water changer as claimed in claim 1, characterized in that: The water inlet pipe, connecting pipe and drain pipe are made of PVC pipes with a diameter of 50 mm.

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