Crop bubble field period controllable drainage device
By designing a controllable drainage device, which combines bends and detachable inclined and vertical pipes, the problem of inaccurate water level control in flooded fields was solved, achieving automatic adjustment and resource optimization, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING WATER CONSERVANCY SURVEY & DESIGN INST CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
AI Technical Summary
In the current process of flooding farmland, the control of irrigation water level relies on manual monitoring, which is difficult to adjust precisely, resulting in water waste and impacting crop growth. In addition, digital devices are costly.
Design a controllable drainage device that includes a bend, a detachable inclined pipe, and a detachable vertical pipe. The water level is adjusted by vertical pipes of different heights, and the water level in the paddy field is automatically controlled by threaded connection and snap-lock sealing.
It achieves automatic adjustment of paddy field water level to meet the needs of different crops, improves farmland management efficiency and irrigation water resource utilization, and has a simple structure and low cost.
Smart Images

Figure CN224495056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of farmland irrigation technology, specifically to a controllable drainage device for crops during the flooding period. Background Technology
[0002] Soil flooding is an agricultural practice that involves irrigating and soaking the topsoil of farmland before planting. Its main purpose is to soften the soil, making it easier to till and plant. This process effectively reduces soil seepage, improves water and fertilizer retention capacity, and creates a suitable soil environment for crop growth. Currently, the control of irrigation water levels in soil flooding largely relies on traditional manual monitoring and adjustment. This is not only labor-intensive but also difficult to precisely control the water level, failing to meet the different water requirements of various crops. This often leads to water waste and even affects crop growth cycles and yields. While digital water level control devices exist, they significantly increase costs for agricultural production. Therefore, there is an urgent need for a simple device that can automatically and precisely control the water level in soil flooding to adapt to the needs of different crops, improve farmland management efficiency, and increase the utilization rate of irrigation water resources. Utility Model Content
[0003] In order to solve the technical problems existing in the prior art, the purpose of this application is to provide a controllable drainage device for the paddy field during the flooding period of crops, which can adjust and control the water level of the flooded field to meet the needs of different crops, improve the efficiency of farmland management and the utilization rate of irrigation water resources, and has a simple structure and low manufacturing cost.
[0004] To solve the aforementioned existing technical problems, the purpose of this application is achieved by the following technical solution: a controllable drainage device for crops during the flooding period, comprising a curved pipe installed on the field surface, a detachable inclined pipe installed at the lower end of the curved pipe that passes through the field ridge and connects to a drainage channel, and a detachable vertical pipe installed at the upper end of the curved pipe. The upper end of the curved pipe extends out of the field surface, and the lower end of the curved pipe passes through the field ridge. The detachable vertical pipe includes various height specifications, and the detachable inclined pipe slopes downward from the field surface towards the drainage channel.
[0005] Preferably, the downward tilt angle of the detachable inclined tube is 30° to 60°.
[0006] Preferably, the upper end of the detachable vertical pipe is lower than the top surface of the field ridge.
[0007] Preferably, both the upper and lower ends of the bend are provided with external threads, the upper end of the detachable inclined tube is provided with an inclined tube internal thread corresponding to the external thread at the lower end of the bend, and the lower end of the detachable vertical tube is provided with a vertical tube internal thread corresponding to the external thread at the upper end of the bend.
[0008] Preferably, the lower end of the detachable inclined tube is provided with an inclined surface extending out of the side of the drainage channel, and the inclined surface is flush with the side of the drainage channel.
[0009] Preferably, the lower end of the detachable vertical tube is provided with a buckle that connects to the upper end of the bend, and a sealing ring is provided between the buckle and the outer wall of the bend; the upper end of the detachable inclined tube is connected to the lower end of the bend using the same buckle and sealing ring.
[0010] Preferably, the detachable vertical tube is provided with a detachable filter cover that covers the opening at the upper end of the detachable vertical tube.
[0011] Preferably, the diameter of the detachable filter cover is larger than the diameter of the detachable vertical tube.
[0012] Preferably, the outer wall of the detachable vertical tube is provided with symmetrical connecting columns, the bottom of the detachable filter cover is provided with symmetrical connecting rods, and the connecting rods are provided with connecting grooves that connect with the connecting columns.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] A controllable drainage device for paddy field flooding using the above-mentioned technical solution employs detachable vertical pipes of different heights for drainage, which can adjust and control the water level in the flooded field to meet the needs of different crops, improve farmland management efficiency and irrigation water resource utilization, and has a simple structure and low manufacturing cost. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0016] Figure 2 This is an exploded view of Embodiment 1 of this utility model;
[0017] Figure 3 This is a usage diagram of Embodiment 1 of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection structure between the bent pipe and the detachable vertical pipe in Embodiment 2 of this utility model;
[0019] Figure 5 This is a structural schematic diagram of Embodiment 3 of the present invention;
[0020] Figure 6 This is a schematic diagram of the connection structure between the detachable vertical tube and the detachable filter cover in Embodiment 3 of this utility model;
[0021] In the diagram: 1. Detachable inclined tube; 11. Inclined tube internal thread; 12. Inclined surface; 2. Bend; 21. External thread; 3. Detachable vertical tube; 31. Vertical tube internal thread; 32. Snap fastener; 33. Sealing ring; 34. Connecting column; 4. Detachable filter cover; 41. Connecting rod; 42. Connecting groove. Detailed Implementation
[0022] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0023] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.
[0024] Example 1:
[0025] like Figures 1 to 3 As shown, a controllable drainage device for crops during the flooding period includes a curved pipe 2 installed on the field surface, a detachable inclined pipe 1 installed at the lower end of the curved pipe 2 that passes through the field ridge and connects to the drainage channel, and a detachable vertical pipe 3 installed at the upper end of the curved pipe 2. The upper end of the curved pipe 2 extends out of the field surface, and the lower end of the curved pipe 2 passes through the field ridge. The detachable vertical pipe 3 includes various height specifications, and the detachable inclined pipe 1 slopes downward from the field surface towards the drainage channel.
[0026] The detachable inclined pipe 1 is tilted downwards at an angle of 30° to 60°. By setting the tilt angle, the mud is ensured to be discharged with the water, avoiding the accumulation of mud in the detachable inclined pipe 1, which would cause drainage difficulties.
[0027] The upper end of the detachable vertical pipe 3 is lower than the top surface of the paddy field ridge. The water level can only reach the top surface of the paddy field ridge at most; if it exceeds this, it will overflow from the top surface of the paddy field ridge. The fact that the upper end of the detachable vertical pipe 3 is lower than the top surface of the paddy field ridge ensures normal drainage and ensures control of the water level in the paddy field.
[0028] Both ends of the bend 2 are provided with external threads 21. The upper end of the detachable inclined tube 1 is provided with an inclined tube internal thread 11 that corresponds to the external thread 21 at the lower end of the bend 2. The lower end of the detachable vertical tube 3 is provided with a vertical tube internal thread 31 that corresponds to the external thread 21 at the upper end of the bend 2. The connection is convenient and easy for operators to operate; moreover, the structure is simple and the manufacturing cost is low.
[0029] The lower end of the detachable inclined pipe 1 is provided with an inclined surface 12 that extends out of the side of the drainage channel, and the inclined surface 12 is flush with the side of the drainage channel. The inclined surface 12 increases the outlet area of the lower end of the detachable inclined pipe 1, which facilitates the discharge of mud; at the same time, it ensures the unobstructed flow of water on the side of the drainage channel and avoids obstructing the water flow in the drainage channel.
[0030] In actual operation, as shown in Figure 3, after the detachable inclined pipe 1 and the bent pipe 2 are assembled, the detachable inclined pipe 1 is tilted downwards and passed through the field ridge, with the inclined surface 12 flush with the side of the drainage channel. According to the requirements of the paddy field water level, the required height of the detachable vertical pipe 3 is selected, and the detachable vertical pipe 3 is assembled with the top of the bent pipe 2. Excess water enters from the detachable vertical pipe 3 and is discharged into the drainage channel from the lower end of the detachable inclined pipe 1. The detachable vertical pipe 3 of different heights can adjust and control the paddy field water level, adapt to the needs of different crops, improve the efficiency of farmland management and the utilization rate of irrigation water resources, and has a simple structure and low manufacturing cost.
[0031] During the typhoon season, the detachable vertical pipe 3 can be removed to enable rapid drainage of paddy fields and prevent flooding.
[0032] Example 2:
[0033] like Figure 4 As shown, for reference Figure 2 Unlike Embodiment 1, the lower end of the detachable vertical pipe 3 is provided with a buckle 32 that connects to the upper end of the bend 2, and a sealing ring 33 is provided between the buckle 32 and the outer wall of the bend 2; the upper end of the detachable inclined pipe 1 is connected to the lower end of the bend 2 using the same buckle 32 and sealing ring 33. Compared with the threaded connection in Embodiment 1, the buckle 32 connection is more convenient, and the sealing ring 33 increases the sealing performance.
[0034] Example 3:
[0035] like Figure 5 and Figure 6 As shown, for reference Figure 1 Based on Embodiment 1, the detachable vertical pipe 3 is provided with a detachable filter cover 4 that covers the opening at the upper end of the detachable vertical pipe 3. The detachable filter cover 4 filters the drainage, blocks farmland debris, breaks up the mud, and prevents blockages that affect drainage.
[0036] The diameter of the detachable filter cover 4 is larger than the diameter of the detachable vertical pipe 3. This allows the detachable filter cover 4 to wrap around the upper opening of the detachable vertical pipe 3, further preventing farmland debris from entering.
[0037] The outer wall of the detachable vertical pipe 3 is provided with symmetrical connecting columns 34, and the bottom of the detachable filter cover 4 is provided with symmetrical connecting rods 41. The connecting rods 41 are provided with connecting grooves 42 that connect with the connecting columns 34. Disassembly is convenient, facilitating the cleaning of the filter screen and ensuring smooth drainage.
[0038] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.
Claims
1. A controllable drainage device for crops during the flooding period, characterized in that: It includes a curved pipe (2) installed on the field surface, a detachable inclined pipe (1) installed at the lower end of the curved pipe (2) that passes through the field ridge and connects to the drainage channel, and a detachable vertical pipe (3) installed at the upper end of the curved pipe (2). The upper end of the curved pipe (2) extends out of the field surface, and the lower end of the curved pipe (2) passes through the field ridge. The detachable vertical pipe (3) includes various height specifications. The detachable inclined pipe (1) is inclined downward from the field surface towards the drainage channel.
2. The controllable drainage device for crop paddy field flooding period according to claim 1, characterized in that: The detachable inclined tube (1) is tilted downward at an angle of 30° to 60°.
3. The controllable drainage device for crop paddy field flooding period according to claim 1, characterized in that: The upper end of the detachable vertical pipe (3) is lower than the top surface of the field ridge.
4. The controllable drainage device for crop paddy field flooding period according to claim 1, characterized in that: The upper and lower ends of the bent pipe (2) are provided with external threads (21), the upper end of the detachable inclined pipe (1) is provided with an inclined pipe internal thread (11) corresponding to the external thread (21) at the lower end of the bent pipe (2), and the lower end of the detachable vertical pipe (3) is provided with a vertical pipe internal thread (31) corresponding to the external thread (21) at the upper end of the bent pipe (2).
5. A controllable drainage device for crop paddy field flooding as described in claim 1, characterized in that: The lower end of the detachable inclined tube (1) is provided with an inclined surface (12) that extends out of the side of the drainage channel, and the inclined surface (12) is flush with the side of the drainage channel.
6. The controllable drainage device for crop paddy field flooding period according to claim 1, characterized in that: The lower end of the detachable vertical tube (3) is provided with a buckle (32) that connects to the upper end of the bend (2), and a sealing ring (33) is provided between the buckle (32) and the outer wall of the bend (2); the upper end of the detachable inclined tube (1) and the lower end of the bend (2) are connected by the same buckle (32) and sealing ring (33).
7. A controllable drainage device for crop paddy field flooding as described in claim 1, characterized in that: The detachable vertical tube (3) is provided with a detachable filter cover (4) that covers the opening at the upper end of the detachable vertical tube (3).
8. A controllable drainage device for crop paddy field flooding period according to claim 7, characterized in that: The diameter of the detachable filter cover (4) is larger than the diameter of the detachable vertical tube (3).
9. A controllable drainage device for crop paddy field flooding as described in claim 8, characterized in that: The outer wall of the detachable vertical tube (3) is provided with symmetrical connecting columns (34), and the bottom of the detachable filter cover (4) is provided with symmetrical connecting rods (41). The connecting rods (41) are provided with connecting grooves (42) that connect to the connecting columns (34).