A water-saving irrigation device for seedling cultivation in saline-alkali land

Abstract

This utility model relates to the technical field of water-saving irrigation equipment, specifically a water-saving device for seedling irrigation in saline-alkali land. It includes a main pipe and a drip irrigation tape connected to the main pipe. One end of the main pipe is connected to the outlet of a flow sensor, and the inlet of the flow sensor is connected to the outlet of a filter assembly. The inlet of the filter assembly is connected to a field outlet valve via a solenoid valve. This utility model monitors the water flow in real time using a flow sensor, and automatically controls the water flow using a solenoid valve, eliminating the need for manual valve closing, reducing human error, and accurately controlling the irrigation water volume. This prevents deep seepage due to excessive dripping, thus preventing secondary salinization caused by rising groundwater levels, meeting the requirement for precise water control in saline-alkali land irrigation. Furthermore, the filter screen in the filter assembly filters the irrigation water entering the main pipe, removing impurities and preventing them from clogging the outlet holes of the drip irrigation tape, ensuring smooth drip irrigation and improving irrigation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of water-saving irrigation equipment, specifically a water-saving device for seedling irrigation in saline-alkali land. Background Technology

[0002] The harm of saline-alkali land to crops is the result of multiple factors, including osmotic stress, ion toxicity, deterioration of soil physicochemical properties, and physiological metabolic disorders. This series of adverse effects ultimately leads to stunted crop growth, abnormal development, and a significant reduction in yield, sometimes even resulting in complete crop failure. Against this backdrop, irrigation water management in saline-alkali land becomes a core element in improving saline-alkali soil and ensuring normal crop growth. Its core objective is very clear: to meet the water needs of crops while preventing further soil salinization. Due to the inherent characteristics of saline-alkali land, flood irrigation is not suitable; drip irrigation and sprinkler irrigation are more appropriate. These methods can precisely deliver water to the vicinity of crop roots, reducing water evaporation, effectively inhibiting salt accumulation on the surface, and precisely controlling water volume to prevent groundwater level rise due to deep seepage, which could trigger secondary salinization.

[0003] However, existing drip irrigation methods have certain drawbacks. Typically, drip irrigation connects a main pipe to a valve buried at the edge of the field, and then the drip tape is attached to the main pipe. This method requires manual intervention to close the valve at set times, which is prone to human error and can lead to over-drip irrigation. Furthermore, the main pipe lacks a filter, allowing impurities in the water to easily clog the drip tape's outlet holes, affecting irrigation efficiency. Utility Model Content

[0004] This utility model provides a water-saving device for seedling irrigation in saline-alkali land, which solves the problems of current drip irrigation methods, such as the need for manual valve closing leading to human error and excessive dripping, and the lack of a filter device on the main pipe, which makes the water impurities in the water easy to clog the outlet of the drip irrigation tape.

[0005] To address the existing problems, this utility model provides a water-saving irrigation device for seedling cultivation in saline-alkali land, including a main pipe and a drip irrigation tape connected to the main pipe. One end of the main pipe is connected to the outlet of a flow sensor, and the inlet of the flow sensor is connected to the outlet of a filter assembly. The inlet of the filter assembly is connected to a field outlet valve via a solenoid valve.

[0006] The filter assembly includes a first pipe section connected to a solenoid valve and a second pipe section connected to a flow sensor. The first pipe section and the second pipe section are threaded together, and a filter screen is provided inside the second pipe section at the end closest to the first pipe section.

[0007] Furthermore, a limiting protrusion is provided on the inner wall of the second pipe section, and a filter screen is installed on the side of the limiting protrusion near the first pipe section.

[0008] Furthermore, the inner wall of the second pipe section is provided with a plurality of limiting posts, which are located on the side of the limiting protrusion close to the first pipe section.

[0009] Furthermore, the edge of the filter screen is provided with a groove corresponding to the position of the limiting post.

[0010] Furthermore, the distance between the limiting post and the limiting protrusion is the same as the thickness of the filter screen edge.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model monitors water flow in real time through a flow sensor and automatically controls water flow through a solenoid valve, eliminating the need for manual valve shut-off at set times, reducing human error, and enabling precise control of irrigation water volume. This prevents deep seepage caused by excessive dripping and avoids secondary salinization caused by rising groundwater levels, thus meeting the requirement for precise water volume control in saline-alkali land irrigation.

[0013] 2. The filter screen in the filter assembly of this utility model can filter the irrigation water entering the main pipe, remove impurities from the water, prevent impurities from clogging the outlet holes of the drip irrigation tape, ensure smooth drip irrigation, and improve irrigation effect.

[0014] 3. The first and second pipe sections of the filter assembly of this utility model are connected by threads, which facilitates disassembly; the filter screen is fixed by limiting protrusions and limiting posts, and the grooves on the edge cooperate with the limiting posts, which not only ensures the stability of the filter screen installation, but also facilitates the cleaning or replacement of the filter screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of some of the components of this utility model;

[0017] Figure 3 This is a schematic diagram showing the disassembled and separated state of the first and second pipe sections of this utility model.

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 This is a schematic diagram of the structure of the filter screen of this utility model;

[0020] Figure 6 This is a schematic diagram of the second pipe section structure of this utility model;

[0021] In the diagram: 1. Main pipe; 2. Drip irrigation tape; 3. Flow sensor; 4. Filter assembly; 401. First pipe section; 402. Second pipe section; 4021. Limiting protrusion; 4022. Limiting post; 403. Filter screen; 4031. Groove; 5. Solenoid valve. Detailed Implementation

[0022] 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.

[0023] refer to Figures 1 to 5 A water-saving irrigation device for seedling cultivation in saline-alkali land includes a main pipe 1 and a drip irrigation tape 2 connected to the main pipe 1. One end of the main pipe 1 is connected to the outlet of a flow sensor 3, and the inlet of the flow sensor 3 is connected to the outlet of a filter assembly 4. The inlet of the filter assembly 4 is connected to a field outlet valve through a solenoid valve 5.

[0024] The filter assembly 4 includes a first pipe section 401 connected to the solenoid valve 5 and a second pipe section 402 connected to the flow sensor 3. The first pipe section 401 and the second pipe section 402 are threaded together. A filter screen 403 is provided inside the second pipe section 402 near the first pipe section 401.

[0025] The second pipe section 402 has a ring of limiting protrusions 4021 on its inner wall, and a filter screen 403 is installed on the side of the limiting protrusions 4021 near the first pipe section 401.

[0026] The second pipe section 402 has multiple limiting posts 4022 on its inner wall, and the limiting posts 4022 are located on the side of the limiting protrusion 4021 that is close to the first pipe section 401.

[0027] The filter screen 403 has a groove 4031 on its edge that corresponds to the position of the limiting post 4022.

[0028] The distance between the limiting post 4022 and the limiting protrusion 4021 is the same as the edge thickness of the filter screen 403.

[0029] Example 1: Reference Figures 1 to 5The specific operation for installing the filter screen 403 of the filter assembly is as follows: First, align the groove 4031 on the filter screen 403 with the limiting post 4022, and then push the filter screen 403 into the second pipe section 402 until the lower edge surface of the filter screen 403 is in close contact with the upper surface of the limiting protrusion 4021. At this time, the filter screen 403 can be rotated by hand to make the groove 4031 and the limiting post 4022 misaligned. This will restrict the upper and lower edges of the misaligned filter screen 403, except for the groove 4031, between the limiting protrusion 4021 and the limiting post 4022, thus ensuring the stability of the filter screen 403 during operation.

[0030] Example 2: Reference Figures 1 to 5 When it is necessary to clean the impurities on the filter screen 403, disassemble the first pipe section 401 from the solenoid valve 5, then loosen and disassemble the threaded connection between the first pipe section 401 and the second pipe section 402, and then clean the impurities accumulated on one side of the filter screen 403. If it is necessary to remove the filter screen 403 for cleaning or replacement, you can rotate the filter screen 403 by hand to align the groove 4031 of the filter screen 403 with the limiting post 4022, and then pull the filter screen 403 outward by hand to slide it away from the limiting post 4022 to complete the disassembly.

[0031] Working principle: Water from the field outlet valve first enters the solenoid valve 5. The solenoid valve 5 acts as a water flow switch and can be automatically opened by the controller (not shown in the figure) according to the preset irrigation plan. The water flowing through the solenoid valve 5 enters the first pipe section 401 of the filter assembly 4, and then flows to the second pipe section 402. A filter screen 403 is installed inside the second pipe 402 near the first pipe section 401. When the water flows through the filter screen 403, impurities in the water are intercepted by the filter screen 403. The filtered clean water continues to flow in the second pipe section 402 and enters the flow sensor 3. The flow sensor 3 monitors the water flow information in real time and transmits the information to the controller. When the preset irrigation amount is detected, the controller will issue a command to close the solenoid valve 5 and stop the water supply, thereby achieving precise control of the irrigation amount.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A water-saving irrigation device for seedling cultivation in saline-alkali land, comprising a main pipe (1) and a drip irrigation tape (2) connected to the main pipe (1), characterized in that: One end of the main pipe (1) is connected to the outlet of the flow sensor (3), the inlet of the flow sensor (3) is connected to the outlet of the filter assembly (4), and the inlet of the filter assembly (4) is connected to the ground outlet valve through the solenoid valve (5). The filter assembly (4) includes a first pipe section (401) connected to a solenoid valve (5) and a second pipe section (402) connected to a flow sensor (3). The first pipe section (401) and the second pipe section (402) are threaded together. A filter screen (403) is provided inside the second pipe section (402) at the end closest to the first pipe section (401).

2. The seedling irrigation water-saving device for saline-alkali soil according to claim 1, characterized in that: A limiting protrusion (4021) is provided on the inner wall of the second pipe section (402), and a filter screen (403) is installed on the side of the limiting protrusion (4021) near the first pipe section (401).

3. The seedling irrigation water-saving device for saline-alkali soil according to claim 2, characterized in that: The inner wall of the second pipe section (402) is provided with a plurality of limiting posts (4022), and the limiting posts (4022) are located on the side of the limiting protrusion (4021) close to the first pipe section (401).

4. The seedling irrigation water-saving device for saline-alkali soil according to claim 3, characterized in that: The edge of the filter screen (403) is provided with a groove (4031) corresponding to the position of the limiting post (4022).

5. The seedling irrigation water-saving device for saline-alkali soil according to claim 4, characterized in that: The distance between the limiting post (4022) and the limiting protrusion (4021) is the same as the edge thickness of the filter screen (403).

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