Overflow gap device for rice and fish breeding
By designing an adjustable overflow device, manually adjusting the height of the sleeve and head pipe, and combining it with the filter bucket and filter head, the problem of silt loss in paddy field water level control was solved, achieving precise control of paddy field water level and efficient utilization of resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-13
AI Technical Summary
In existing technologies, the overflow level is usually set to the highest water level, which leads to the loss of silt and nutrients when regulating the water level in paddy fields, and the method of pumping water is uneconomical.
Design an adjustable overflow device that allows for precise control and filtration of paddy field water levels by manually adjusting the height of the sleeve and head pipe, combined with a filter bucket and filter head, thus preventing silt loss.
It enables flexible adjustment of paddy field water levels and filtration of debris, reduces the loss of silt and nutrients, and improves the resource utilization efficiency of the rice-fish farming system.
Smart Images

Figure CN223991422U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of overflow outlet devices, specifically an overflow outlet device for rice-fish farming. Background Technology
[0002] In modern agriculture, rice-fish farming is a highly efficient and environmentally friendly agricultural model that combines the advantages of both rice cultivation and aquaculture, maximizing resource utilization. However, in practice, rice-fish farming systems face numerous technical challenges, one of which is how to effectively manage and utilize water resources in paddy fields, particularly the design and use of overflow outlets.
[0003] In existing technologies, the overflow level is usually set to the highest water level. When it is necessary to regulate the water level in paddy fields, the paddy field water needs to be discharged. However, pumping water can easily lead to the loss of silt, and nutrients and fish in the paddy field will be lost. Therefore, this solution designs a device that can regulate the overflow level. People can adjust the overflow level according to the water level required for rice-fish farming to achieve water level control for rice-fish farming. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an overflow device for rice-fish farming, which solves the problem that in the prior art, the overflow level is usually set to the highest water level. When it is necessary to regulate the water level of the paddy field, the paddy field water needs to be discharged. However, pumping water can easily lead to the loss of silt, and the loss of nutrients and fish in the paddy field.
[0005] An overflow device for rice-fish farming includes a conveying pipe, a vertically turning head pipe installed at the head of the conveying pipe, a sleeve fitted on the head pipe, a filter head installed at the head of the sleeve, and a filter barrel installed on the body of the head pipe.
[0006] Preferably, a limit ring is fixed to the surface of the head tube.
[0007] Preferably, a locking block is fixedly connected to the bottom of the sleeve, and a clamp is fitted on the locking block by bolts. A sealing ring is installed on the inner wall of the sleeve.
[0008] Preferably, both the limiting ring and the sealing ring are multi-layered, and both the limiting ring and the sealing ring are made of rubber.
[0009] Preferably, the inner wall dimensions of the sleeve match the outer diameter dimensions of the head tube.
[0010] Preferably, the filter canister is detachably mounted on the head tube.
[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention allows for manual adjustment of the height of the sleeve and the head tube by pulling the sleeve, thereby effectively controlling the height of the filter head. By controlling the height of the filter head, the filter head can be adjusted according to the overflow level of the paddy field water. After that, the positions of the sleeve and the head tube are fixed. When the device is in use, the conveying pipe can be buried inside the paddy field. The present invention can adjust the height of the sleeve according to the required overflow level of the paddy field, so that the sleeve can adjust the overflow level at any time as needed, and the paddy field water can be filtered through the filter bucket and the filter head, thereby effectively controlling the overflow level of the paddy field. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the filter barrel after removal;
[0014] Figure 3 This is a schematic diagram of the connection structure between the head tube and the sleeve of this utility model;
[0015] Figure 4 This is an exploded structural diagram of the connection between the head tube and the sleeve of this utility model;
[0016] Figure 5 This is a schematic diagram of the three-dimensional connection structure of the sleeve of this utility model from a bottom view.
[0017] In the diagram: 1. Conveying pipe; 2. Head pipe; 21. Limiting ring; 3. Sleeve; 31. Clamp; 32. Clamp; 33. Sealing ring; 4. Filter head; 5. Filter barrel. Detailed Implementation
[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0019] like Figure 1-5 As shown, this utility model provides an overflow device for rice-fish farming, including a conveying pipe 1, a vertically turning head pipe 2 installed at the head of the conveying pipe 1, a sleeve 3 fitted on the head pipe 2, a filter head 4 installed at the head of the sleeve 3, the filter head 4 can further filter the paddy field water, and a filter bucket 5 installed on the body of the head pipe 2.
[0020] A limiting ring 21 is fixed on the surface of the head tube 2. The limiting ring 21 can limit the height of the sleeve 3 so that the height of the sleeve 3 will not fall.
[0021] A locking block 31 is fixedly connected to the bottom of the sleeve 3. A clamp 32, which is fixed by bolts, is fitted on the locking block 31. A sealing ring 33 is installed on the inner wall of the sleeve 3. The clamp 32 is fixed by bolts, so that the clamp 32 presses the locking block 31 tightly, thereby fixing the sleeve 3 to the head tube 2.
[0022] Both the limiting ring 21 and the sealing ring 33 are multi-layered and made of rubber. When the sleeve 3 is pulled by hand, the sealing ring 33 on the inner wall of the sleeve 3 is squeezed against the limiting ring 21, so that the sealing ring 33 keeps the head tube 2 and the sleeve 3 sealed.
[0023] The inner wall size of the sleeve 3 matches the outer diameter size of the head tube 2. When the sleeve 3 is pulled by hand, the height formed by the sleeve 3 and the head tube 2 reaches the appropriate overflow level, so that the water level of the rice field can be easily controlled.
[0024] The filter cartridge 5 is detachably mounted on the head tube 2, making it easy to install and remove the filter cartridge 5. The filter cartridge 5 can be assembled on the head tube 2 by screws.
[0025] Working principle: Pull the sleeve 3 by hand to make the length of the sleeve 3 and the head pipe 2 reach the appropriate overflow height. Then, tighten the clamp 32 and the clamp block 31 with bolts to fix the sleeve 3 and the head pipe 2 together. Then, install the conveying pipe 1 inside the paddy field. When the water level in the paddy field reaches the limit, the water will gradually flow into the inside of the sleeve 3. The filter bucket 5 can block the impurities in the paddy field water outside the filter bucket 5. Then, the water flows into the inside of the sleeve 3 through the filter head 4. Then, the water flows into the inside of the head pipe 2 through the sleeve 3 and is transported from the paddy field to the outside through the conveying pipe 1, thus ensuring that the water in the paddy field is drained through this device when the water level reaches the maximum.
[0026] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.
Claims
1. A spillway device for rice-fish culture, comprising a delivery conduit (1), characterized in that: The head of the conveying pipeline (1) is provided with a vertical turning head pipe (2), a sleeve pipe (3) is sleeved on the head pipe (2), a filter head (4) is arranged on the head of the sleeve pipe (3), and a filter barrel (5) is arranged on the pipe body of the head pipe (2).
2. The overflow device for rice-fish culture according to claim 1, wherein: The surface of the head pipe (2) is fixedly provided with a limiting ring (21).
3. The overflow device for rice-fish culture according to claim 1, wherein: The bottom of the sleeve pipe (3) is fixedly connected with a clamping block (31), the clamping block (31) is sleeved with a clamping hoop (32) fixed by bolts, and the inner wall of the sleeve pipe (3) is provided with a sealing ring (33).
4. The overflow device for rice-fish culture according to claim 2, wherein: The limiting ring (21) and the sealing ring (33) are both provided in multiple layers, and the limiting ring (21) and the sealing ring (33) are made of rubber.
5. The overflow device for rice-fish culture according to claim 4, wherein: The inner wall size of the sleeve pipe (3) matches the outer diameter size of the head pipe (2).
6. The overflow device for rice-fish culture according to claim 5, wherein: The filter barrel (5) is detachably arranged on the head pipe (2).