Small negative pressure infiltrating irrigation device
By designing a small negative pressure seepage irrigation device, the water supply is automatically controlled by soil moisture content, which solves the problem of water supply pipes affecting production efficiency on the ground and realizes automated irrigation and efficient water saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG YIKANGNONG SCI DEV CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-05
AI Technical Summary
The water supply pipes of existing negative pressure water-saving irrigation systems are located above ground, which means that crops with short growing seasons need to be frequently dismantled and reinstalled during mechanized operations, affecting production efficiency and increasing labor costs.
Design a small negative pressure seepage irrigation device, including an underground water storage tank and a float switch system, which automatically controls water supply based on soil moisture content to achieve continuous and automatic irrigation, keeping plant roots moist at all times.
By burying underground water tanks and using a float switch system, automated water supply was achieved, reducing manual intervention, improving production efficiency, and lowering labor costs.
Smart Images

Figure CN224192626U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of seepage irrigation devices, specifically relating to a small negative pressure seepage irrigation device. Background Technology
[0002] "Negative pressure water supply technology" is a new technology for "energy-saving agricultural irrigation". Negative pressure seepage irrigation equipment utilizes soil tension to draw negative pressure water from the seepage device into the soil to supply plants. Compared with existing pressurized irrigation methods such as "sprinkler irrigation, drip irrigation, seepage irrigation, and surface irrigation", it is called negative pressure, replacing pressurized irrigation to achieve "energy saving". The unsaturated movement of soil water under negative pressure replaces the gravitational movement of water in existing irrigated soil, reducing soil leakage and evaporation losses, thus achieving "water saving". Plants continuously and actively draw only the amount they need from the equipment, replacing existing intermittent irrigation and changing the inconsistent water levels, achieving "precision and high efficiency".
[0003] The existing "A negative pressure water-saving irrigation system" (202211727398.X) and "A small irrigation head and an irrigation system including the same" (202210046835.5) are negative pressure irrigation methods, but they are all installed by drilling holes in the ground and inserting them directly. Part of them will be exposed above the ground, and the water supply pipes are also above the ground. For crops with short growing seasons and frequent tilling, especially in fields with mechanized operations, they need to be dismantled and reinstalled periodically, which affects production efficiency and increases labor costs. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a small negative pressure drip irrigation device. This device aims to solve the technical problem that, under existing technologies, water supply pipes are also located above ground level. For crops with short growing seasons and frequent tilling, especially in fields with mechanized operations, periodic dismantling and reinstallation are required, which affects production efficiency and increases labor costs.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a small negative pressure seepage irrigation device, comprising:
[0008] A water storage tank, wherein the water storage tank is a hollow cuboid structure without a lid, and an inlet pipe is fixed to the side wall of the water storage tank, wherein a float switch for controlling the inlet pipe is installed in the water storage tank;
[0009] The ceramic top cover is embedded and fixed to the bottom of the water storage tank, and the bottom of the ceramic top cover is fixed with a ceramic connecting part embedded in the water storage tank. Both the ceramic top cover and the ceramic connecting part are water-absorbing ceramics.
[0010] When using this technical solution, a water storage tank is installed underground. When the soil moisture content in contact with the ceramic cover is lower than that of the ceramic cover, the soil absorbs water from the ceramic cover, and the ceramic cover absorbs water from the water storage tank. As the water level in the water storage tank drops, the float switch opens, and the inlet pipe begins to supply water, thus achieving continuous irrigation. When the soil is short of water, automatic irrigation is achieved underground, keeping the soil around plant roots moist. By installing a float switch in the water storage tank, when there is no water in the tank, the float sinks due to its own weight, causing the flip plug to rotate to the right and leave the right end of the inlet pipe. The float switch opens, and water enters the water storage tank from the inlet pipe. As the water level in the tank rises, the float gradually rises due to the buoyancy of the water. The flip plug causes the sealing gasket to rotate to the left until a certain water level is reached, blocking the right end of the inlet pipe and stopping the inlet pipe from supplying water to the water storage tank.
[0011] Preferably, a fixing seat is embedded in the side wall of the water storage tank, the float switch is fixed in the mounting fixing seat, and a threaded connection part is fixed on the float switch.
[0012] Furthermore, a float rod is fixedly connected to one end of the float switch that extends into the water storage tank, and a float ball is fixedly installed on the float rod.
[0013] Furthermore, a connector is rotatably snapped onto the water inlet pipe, the connector being threaded onto the threaded connection portion, and a sealing ring is embedded in the connector to tightly connect with the threaded connection portion.
[0014] Furthermore, the inner wall of the water storage tank is fixed with a support portion located below the float, the ceramic connecting portion is in contact with the support portion, and the bottom end of the ceramic connecting portion is provided with a groove.
[0015] Furthermore, a sealing gasket is embedded in the top of the water storage tank, and fastening plates are fixed on both sides of the outer wall of the water storage tank. An installation tube is embedded in the ceramic connection part, and a bolt threaded into the fastening plate is inserted into the top of the installation tube.
[0016] Furthermore, the float switch is rotatably equipped with a flip-over plug, and the float rod drives the flip-over plug to rotate via a rotating rod.
[0017] (3) Beneficial effects
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model features a water storage tank buried underground. When the soil moisture content in contact with the ceramic cover is lower than that of the ceramic cover, the soil absorbs water from the ceramic cover, and the ceramic cover absorbs water from the water storage tank. When the water level in the water storage tank drops, the float switch opens, and the water inlet pipe starts supplying water, thus enabling continuous irrigation. When the soil is short of water, it automatically irrigates the soil underground, keeping the soil around plant roots moist at all times.
[0020] By installing a float switch in the water storage tank, when there is no water in the tank, the float sinks due to its own weight, causing the flip plug to rotate to the right and leave the right port of the inlet pipe. The float switch opens, and water enters the water storage tank from the inlet pipe. As the water level in the tank rises, the float gradually rises due to the buoyancy of the water. The flip plug causes the sealing gasket to rotate to the left until a certain water level is reached, at which point the right port of the inlet pipe is blocked, and the inlet pipe stops supplying water to the water storage tank. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0024] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A;
[0025] Figure 4 This is a schematic diagram of the internal structure of the water storage tank in this utility model.
[0026] The markings in the attached diagram are as follows: 1. Water tank; 2. Bolt; 3. Ceramic cover; 4. Inlet pipe; 5. Support; 6. Ceramic connector; 7. Mounting pipe; 8. Groove; 9. Fixing base; 10. Sealing ring; 11. Connector; 12. Threaded connector; 13. Float; 14. Sealing gasket; 15. Float ball; 16. Float switch; 17. Fastening plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] This specific embodiment is a small negative pressure seepage irrigation device, the structural diagram of which is shown below. Figure 1 and Figure 4 As shown, it includes:
[0029] Water storage tank 1, the water storage tank 1 is a hollow cuboid structure without a cover, and a water inlet pipe 4 is fixed on the side wall of the water storage tank 1. A float switch 16 for controlling the water inlet pipe 4 is installed in the water storage tank 1.
[0030] A ceramic cover 3 is embedded and fixed at the bottom of the water storage tank 1, and a ceramic connecting part 6 embedded in the water storage tank 1 is fixed at the bottom of the ceramic cover 3. Both the ceramic cover 3 and the ceramic connecting part 6 are water-absorbing ceramics. When the soil moisture content in contact with the ceramic cover 3 is lower than the ceramic moisture content of the ceramic cover 3, the soil absorbs water from the ceramic cover 3, and the ceramic cover 3 absorbs water from the water storage tank 1. The water level in the water storage tank 1 drops, the float switch 16 opens, and the water inlet pipe 4 starts to supply water, thereby realizing continuous irrigation. When the soil is short of water, the soil is automatically irrigated underground, and the soil of the plant roots is always kept moist.
[0031] A mounting base 9 is embedded in the side wall of the water storage tank 1. A float switch 16 is fixed in the mounting base 9, and a threaded connection part 12 is fixed on the float switch 16. A float rod 13 is fixedly connected to one end of the float switch 16 that extends into the water storage tank 1. A float ball 15 is fixedly installed on the float rod 13. A connector 11 is rotatably snapped onto the water inlet pipe 4. The connector 11 is threaded onto the threaded connection part 12, and a sealing ring 10 is embedded in the connector 11 that is tightly connected to the threaded connection part 12. The water inlet pipe 4 is connected to an external water supply pipe. The water supply pipe and the water storage tank 1 are horizontally buried in the soil at the required depth. The water level in the water storage tank 1 exceeds the height of the support part 5 and comes into contact with the ceramic connection part 6, so that the ceramic connection part 6 and the ceramic cover 3 absorb water.
[0032] like Figure 2 and Figure 3As shown, a support part 5 is fixed to the inner wall of the water tank 1, located below the float 15. The support part 5 is located at the lower quarter of the inner wall of the water tank 1. The ceramic connecting part 6 is in contact with the support part 5, and a groove 8 is provided at the bottom end of the ceramic connecting part 6. A sealing gasket 14 is embedded and fixed to the top of the water tank 1, and fastening plates 17 are fixed to both sides of the outer wall of the water tank 1. An installation tube 7 is embedded in the ceramic connecting part 6, and a bolt 2 threaded into the fastening plate 17 is inserted into the top of the installation tube 7. The float switch 1 The rotating part 6 is equipped with a flip-over plug. The float 13 drives the flip-over plug to rotate through the rotating rod. When there is no water in the water storage tank 1, the float sinks due to its own weight, causing the flip-over plug to rotate to the right and leave the right port of the water inlet pipe 4. The float switch 16 is opened, and water enters the water storage tank 1 from the water inlet pipe 4. As the water level in the water storage tank 1 rises, the float gradually rises due to the buoyancy of the water. The flip-over plug drives the sealing gasket 14 to rotate to the left until a certain water level is reached, blocking the right port of the water inlet pipe 4, and the water inlet pipe 4 stops supplying water to the water storage tank 1.
[0033] Working principle: When using the device of this technical solution, the water supply pipe and the water storage tank 1 are horizontally buried in the soil at the required depth. When the soil moisture content in contact with the ceramic cover 3 is lower than the ceramic moisture content of the ceramic cover 3, the soil absorbs water from the ceramic cover 3, and the ceramic cover 3 absorbs water from the water storage tank 1. The water level in the water storage tank 1 drops, the float switch 16 opens, and the water inlet pipe 4 starts to supply water, thus realizing continuous irrigation. When the soil is short of water, the soil is automatically irrigated underground, and the soil of plant roots is always kept moist. When there is no water in the water storage tank 1, the float sinks due to its own weight, which drives the flip plug to rotate to the right and leave the right port of the water inlet pipe 4. The float switch 16 opens, and water enters the water storage tank 1 from the water inlet pipe 4. As the water level in the water storage tank 1 rises, the float gradually floats up due to the buoyancy of the water. The flip plug rotates to the left until a certain water level is reached, blocking the right port of the water inlet pipe 4, and the water inlet pipe 4 stops supplying water to the water storage tank 1.
[0034] All technical features in this embodiment can be freely combined according to actual needs.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A small negative pressure seepage irrigation device, characterized in that, include: Water storage tank (1), the water storage tank (1) is a hollow cuboid structure without a cover, and the side wall of the water storage tank (1) is fixed with a water inlet pipe (4), wherein a float switch (16) for controlling the water inlet pipe (4) is installed in the water storage tank (1); A ceramic top cover (3) is embedded and fixed at the bottom of the water storage tank (1), and a ceramic connecting part (6) embedded in the water storage tank (1) is fixed at the bottom of the ceramic top cover (3). Both the ceramic top cover (3) and the ceramic connecting part (6) are water-absorbing ceramics.
2. The small negative pressure seepage irrigation device according to claim 1, characterized in that, The water storage tank (1) has a fixed base (9) embedded in its side wall. The float switch (16) is fixed in the fixed base (9), and a threaded connection part (12) is fixed on the float switch (16).
3. A small negative pressure seepage irrigation device according to claim 2, characterized in that, The float switch (16) is fixedly connected to a float rod (13) at one end of the float extending into the water storage tank (1), and a float ball (15) is fixedly installed on the float rod (13).
4. A small negative pressure seepage irrigation device according to claim 3, characterized in that, The water inlet pipe (4) is rotatably snapped with a connector (11), the connector (11) is threaded onto the threaded connection part (12), and a sealing ring (10) is embedded in the connector (11) and tightly connected to the threaded connection part (12).
5. A small negative pressure seepage irrigation device according to claim 3, characterized in that, The inner wall of the water storage tank (1) is fixed with a support part (5) located below the float (15), the ceramic connecting part (6) is in contact with the support part (5), and the bottom end of the ceramic connecting part (6) is provided with a groove (8).
6. A small negative pressure seepage irrigation device according to claim 1, characterized in that, The top of the water storage tank (1) is fitted with a sealing gasket (14), and fastening plates (17) are fixed on both sides of the outer wall of the water storage tank (1). An installation tube (7) is embedded in the ceramic connection part (6), and a bolt (2) threaded into the fastening plate (17) is inserted at the top of the installation tube (7).
7. A small negative pressure seepage irrigation device according to claim 3, characterized in that, The float switch (16) is rotatably equipped with a flip-over plug, and the float (13) drives the flip-over plug to rotate through the rotating rod.
Citation Information
Patent Citations
Small infiltrating irrigation head and irrigation system comprising same
CN114514875A
In-situ negative pressure water-saving irrigation system
CN115868399A