An irrigation device for saline-alkali soil treatment

Abstract

The application discloses a kind of saline-alkali soil management irrigation devices, including water supply main pipe for water supply, multiple irrigation mechanisms are evenly distributed in the two sides of water supply main pipe;Irrigation mechanism includes embedding pipe, the inner wall of embedding pipe is fixedly connected with multiple fixed frames that are arranged at equal intervals, the inner wall of fixed frame is slidably connected with multiple drip irrigation pipes, in the present application, by setting irrigation mechanism, by embedding pipe is inserted or embedded in soil, control assembly cooperates with stretching assembly to control drip irrigation pipe from embedding pipe and cooperates with conical head and inserts into deep layer of soil, not only can improve the stability of embedding pipe, and water supply main pipe cooperates with water delivery assembly and provides water source for drip irrigation pipe, multiple-position drip irrigation pipe directly water supply to different depth soil, reduce the phenomenon that traditional surface irrigation water is slow, easy to evaporate, speed up the speed of water penetration to deep layer, can more fully leaching salt in deep layer of soil, greatly improve the effect of saline-alkali soil deep treatment.

Description

Technical Field

[0001] This invention relates to the field of saline-alkali land management technology, specifically to an irrigation device for saline-alkali land management. Background Technology

[0002] Saline-alkali land is a general term for saline soil, alkaline soil, and various salinized and alkalized soils. On the one hand, there are natural factors, such as arid climate and low-lying terrain, which result in a high groundwater level. After water evaporates, salt accumulates on the soil surface. Seawater intrusion in coastal areas can also lead to an increase in soil salinity. On the other hand, there are human factors, such as unreasonable irrigation methods, such as long-term flood irrigation with poor drainage, which can cause the groundwater level to rise. Salt moves upward with the water and accumulates, resulting in low soil fertility, poor physical and chemical properties, and a high pH value. This is extremely harmful to plant growth, as it hinders the absorption of water and nutrients by plant roots. Most crops grow poorly on saline-alkali land and may even fail to survive.

[0003] Existing technology, such as CN119032834B, relates to the field of saline-alkali land management, specifically disclosing an irrigation device for saline-alkali land management, comprising: a main water pipe mechanism, including a main water pipe assembly and branch pipes disposed on the main water pipe assembly; a water supply pipe mechanism, including a water supply pipe assembly interconnected with the branch pipes, and an extension pipe assembly installed on the water supply pipe assembly; the water supply pipe assembly includes a connecting hose, one end of which is fixedly connected to an external connector; the present invention, through the flexible connection of multiple main water pipe assemblies, can adapt to the irrigation needs of saline-alkali land of different sizes and shapes, ensuring a stable and efficient water supply to each irrigation point; the arrangement of the water supply pipe assembly and the extension pipe assembly not only facilitates installation and position adjustment, but also effectively surrounds seedlings to achieve precise irrigation; the positioning rod ensures that the irrigation device can be firmly inserted into the soil, preventing displacement or separation during irrigation.

[0004] In the process of treating saline-alkali land, irrigation is usually used. However, when irrigating, the existing technology usually irrigates the surface layer of the land. When the irrigation water penetrates into the deeper soil layers, the penetration rate is slow and it evaporates easily. The water remains on the surface, which makes it difficult for the salt in the soil below the surface to be effectively leached and diluted. As a result, the deep salinization problem cannot be fully improved, the treatment effect is greatly reduced, and the problem of soil structure cannot be fundamentally improved.

[0005] Therefore, we propose an irrigation device for the treatment of saline-alkali land. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an irrigation device for saline-alkali land remediation. This device solves the problem that existing surface irrigation methods suffer from slow infiltration and easy evaporation of water as it penetrates deeper into the soil, leaving water trapped on the surface. This makes it difficult to effectively leach and dilute the salts in the soil below the surface, resulting in insufficient improvement of deep salinization and significantly reduced remediation effectiveness, failing to fundamentally improve soil structure.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solution: an irrigation device for saline-alkali land treatment, comprising a water supply main pipe for water supply, wherein multiple irrigation mechanisms are evenly distributed on both sides of the water supply main pipe;

[0010] The irrigation mechanism includes an embedded pipe, with multiple equally spaced fixing brackets fixedly connected to the inner wall of the embedded pipe. Multiple drip irrigation pipes are slidably connected to the inner wall of the fixing brackets. The surface of the embedded pipe has a circular hole for the drip irrigation pipes to pass through. One end of each drip irrigation pipe is fixedly connected to a conical head. A water delivery component is installed in the embedded pipe to deliver water from the main water supply pipe to the drip irrigation pipes. An extension component is installed on the inner wall of the fixing brackets to control the multiple drip irrigation pipes to extend out of the circular hole on the surface of the embedded pipe. A through hole is opened on the surface of the drip irrigation pipe, and a control component is inserted into the through hole to control the synchronous movement of multiple extension components. A limit component is also provided on the surface of the embedded pipe to limit the insertion depth of the embedded pipe.

[0011] An adjustment mechanism is provided between the water supply main pipe and the water delivery component to control the water intake of the water delivery component. Through the above-mentioned components and the irrigation mechanism, by inserting or burying the buried pipe into the soil, the control component, in conjunction with the extension component, controls the drip irrigation pipe to extend from the buried pipe and insert into the deep soil layer with the conical head. This not only improves the stability of the buried pipe, but also allows the water supply main pipe, in conjunction with the water delivery component, to supply water to the drip irrigation pipe. The drip irrigation pipes at multiple locations directly deliver water to the soil at different depths, reducing the slow water penetration and easy evaporation of traditional surface irrigation, accelerating the speed of water penetration into deeper layers, and more fully leaching salts in deep soil layers, thus significantly improving the deep treatment effect of saline-alkali land.

[0012] Preferably, the extension assembly includes multiple adjusting screws rotatably connected to the inner wall of the fixing frame. The adjusting screws are threadedly connected to the inner wall of the drip irrigation pipe. A bevel gear one is rotatably connected to the inner wall of the fixing frame. A bevel gear two is fixedly connected to one end of the adjusting screw. The bevel gear one and the multiple bevel gear twos are meshed together. The surface of the bevel gear one has a socket for the insertion of the control assembly. Through the above components, when the control assembly is inserted into the socket on the surface of the bevel gear one, rotating the control assembly will drive the bevel gear one to rotate. The bevel gear one drives the multiple bevel gear twos and the adjusting screws to rotate. The adjusting screws control the drip irrigation pipe and one end of the conical head to be inserted into the soil.

[0013] Preferably, the control component includes a plug shaft, which is inserted into the inner wall of the through hole and the insertion hole respectively. A turntable is fixedly connected to the upper end of the plug shaft. When controlling the device, the plug shaft can be first inserted into the through hole on the surface of the embedded tube, and then sequentially inserted into the insertion hole on the surface of the bevel gear in the fixing frame. The plug shaft can then be rotated by the handle to achieve the adjustment operation.

[0014] Preferably, the surface of the turntable has a slot, which is hexagonal. Through the above-mentioned components, a plug of the corresponding shape can be installed by a power tool and then inserted into the regular hexagon. The rotation operation can be controlled by the power tool.

[0015] Preferably, the water delivery assembly includes a water distribution ring installed in the inner wall of the buried pipe. Multiple branch pipes are installed on the lower surface of the water distribution ring, and multiple telescopic pipes are fixedly connected to the surfaces of the branch pipes. The other end of each telescopic pipe is connected to the drip irrigation pipe. A connector is installed on the upper surface of the water distribution ring and extends through the buried pipe. A connecting pipe is installed at one end of the connector, and the other end of the connecting pipe is connected to the output port of the regulating mechanism. Through these components, the main water supply pipe delivers water to the connecting pipe via the regulating mechanism. The connecting pipe then sequentially delivers water to the connector, the water distribution ring, the branch pipes, and the telescopic pipes. The telescopic pipes then deliver water to the drip irrigation pipe.

[0016] Preferably, the connecting pipe is a telescopic corrugated pipe. Through the above-mentioned components, the distance between two adjacent buried pipes can be reasonably controlled by the telescopic corrugated pipe.

[0017] Preferably, the regulating mechanism includes a housing installed on the main water supply pipe. The output end of the housing is connected to the main water supply pipe and to the water delivery assembly. A rubber tube is fixedly connected to the inner wall of the housing. The rubber tube is connected to the input and output ends of the housing. Two fixed sleeves are fixedly connected to the inner wall of the housing and fitted onto the rubber tube. Two pressure plates are slidably connected to the inner wall of the housing. A bidirectional screw is rotatably connected to the inner wall of the housing. The bidirectional screw is threadedly connected to the inner walls of the two pressure plates. Through the above components, during the adjustment process, the bidirectional screw can be rotated. The bidirectional screw can control the two pressure plates to move closer to the rubber tube and squeeze the rubber tube, thereby realizing the adjustment of the water delivery volume. At the same time, when the two pressure plates are squeezed to a certain position, the water supply can be cut off.

[0018] Preferably, the drip irrigation pipe includes a pipe body, the surface of which has a plurality of circumferentially distributed water outlet holes, and a protective net is fixedly connected to the inner wall of the pipe body. Through the above components, when the drip irrigation pipe discharges water, it discharges through the plurality of water outlet holes on the surface of the pipe body, while the protective net can reduce the phenomenon of soil entering the pipe body.

[0019] Preferably, the limiting component includes a threaded groove formed on the surface of the embedded pipe, a limiting ring threadedly connected to the threaded groove, and multiple protrusions fixedly connected to the surface of the limiting ring. The surface of the embedded pipe has a groove with a scale inside. Through the above components, the limiting ring can be rotated in the threaded groove and adjusted precisely according to the scale inside the groove to ensure consistent insertion depth. At the same time, the limiting ring, in conjunction with the protrusions, can reduce the phenomenon of the embedded pipe tilting.

[0020] Preferably, a connecting strip is fixedly connected to the surface of the embedded tube, and a sealing plug is fixedly connected to one end of the connecting strip. The sealing plug is inserted into the inner wall of the through hole. Through the above components, when the control component is removed, the sealing plug can be inserted into the through hole to achieve the blocking operation.

[0021] In summary, the technical effects and advantages of this invention are as follows:

[0022] 1. In this invention, by setting up an irrigation mechanism, the drip irrigation pipe is inserted into or buried in the soil. The control component, together with the extension component, controls the drip irrigation pipe to extend from the buried pipe and insert into the deep soil layer with the conical head. This not only improves the stability of the buried pipe, but also allows the main water supply pipe, together with the water delivery component, to supply water to the drip irrigation pipe. The drip irrigation pipes at multiple locations directly deliver water to soil at different depths, reducing the slow water penetration and easy evaporation of traditional surface irrigation, accelerating the speed of water penetration into deeper layers, and more fully leaching the salt in the deep soil, thus significantly improving the deep treatment effect of saline-alkali land.

[0023] 2. In this invention, by setting an adjustment mechanism, the movement of two pressure plates is controlled by rotating a bidirectional screw. The two pressure plates, together with the rubber tube, can control the water inlet volume of the water conveying component in the individual irrigation mechanism. The irrigation volume can be flexibly adjusted according to the degree of soil salinization, so as to achieve targeted treatment and reduce water waste.

[0024] 3. In this invention, by setting a limiting component, when embedding or inserting the embedded pipe, the limiting ring can cooperate with the threaded groove and the scale in the groove to ensure that each embedded pipe is inserted to the same depth, which is convenient for adjusting and limiting the insertion depth. At the same time, the limiting ring cooperates with the protrusion to further improve the stability of the embedded pipe.

[0025] 4. In this invention, after the control component is used, it can be pulled out and a sealing plug can be inserted into the through hole on the surface of the embedded pipe to achieve the sealing operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle;

[0028] Figure 3 This is a schematic diagram of the irrigation mechanism structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point B;

[0030] Figure 5 For the present invention Figure 3 A schematic diagram of the cross-sectional structure;

[0031] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point C;

[0032] Figure 7 This is a cross-sectional schematic diagram of the structural fixing frame of the present invention;

[0033] Figure 8 This is a schematic cross-sectional view of the drip irrigation pipe of the present invention;

[0034] Figure 9 This is a schematic diagram of the water conveying component structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the control component structure of the present invention;

[0036] Figure 11 This is a cross-sectional view of the adjustment mechanism of the present invention.

[0037] In the diagram: 1. Main water supply pipe; 2. Irrigation mechanism; 21. Buried pipe; 22. Water conveyance assembly; 221. Connecting pipe; 222. Water distribution ring; 223. Connector; 224. Branch pipe; 225. Telescopic pipe; 23. Limiting assembly; 231. Threaded groove; 232. Limiting ring; 233. Protrusion; 234. Groove; 235. Scale; 24. Control assembly; 241. Turntable; 242. Slot; 243. Insert shaft; 2 5. Fixing frame; 26. Drip irrigation pipe; 261. Pipe body; 262. Water outlet; 263. Protective net; 27. Conical head; 28. Extension assembly; 281. Bevel gear one; 282. Bevel gear two; 283. Adjusting screw; 284. Insertion hole; 29. ​​Sealing plug; 210. Through hole; 211. Connecting strap; 3. Adjusting mechanism; 31. Housing; 32. Bidirectional screw; 33. Pressure plate; 34. Rubber tube; 35. Fixing sleeve. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1 - Figure 11 As shown, the irrigation device for saline-alkali land treatment of the present invention includes a water supply main pipe 1 for water supply, and multiple irrigation mechanisms 2 are evenly distributed on both sides of the water supply main pipe 1.

[0040] The irrigation mechanism 2 includes a buried pipe 21. Multiple equally spaced fixing brackets 25 are fixedly connected to the inner wall of the buried pipe 21. Multiple drip irrigation pipes 26 are slidably connected to the inner wall of the fixing brackets 25. The surface of the buried pipe 21 has circular holes for the drip irrigation pipes 26 to pass through. One end of each drip irrigation pipe 26 is fixedly connected to a conical head 27. A water delivery assembly 22 is installed in the buried pipe 21 to deliver water from the main water supply pipe 1 to the drip irrigation pipes 26. An extension assembly 28 is installed on the inner wall of the fixing brackets 25 to control the multiple drip irrigation pipes 26 to extend from the circular holes on the surface of the buried pipe 21. The surface of the drip irrigation pipes 26 has... There is a through hole 210, in which a control component 24 is inserted to control the synchronous movement of multiple sets of extension components 28. The surface of the buried tube 21 is also provided with a limit component 23 to limit the insertion depth of the buried tube 21. A connecting strip 211 is fixedly connected to the surface of the buried tube 21, and a sealing plug 29 is fixedly connected to one end of the connecting strip 211. The sealing plug 29 is inserted into the inner wall of the through hole 210 for sealing. The drip irrigation tube 26 includes a tube body 261. Multiple circumferentially distributed water outlet holes 262 are opened on the surface of the tube body 261. A protective net 263 is fixedly connected to the inner wall of the tube body 261.

[0041] In this implementation scheme: by setting up an irrigation mechanism 2, the buried pipe 21 is inserted into or buried in the soil, and the control component 24, together with the extension component 28, controls the drip irrigation pipe 26 to extend from the buried pipe 21 and insert into the deep soil layer with the conical head 27. This not only improves the stability of the buried pipe 21, but also allows the water supply main pipe 1, together with the water delivery component 22, to supply water to the drip irrigation pipe 26. The drip irrigation pipe 26 at multiple locations directly delivers water to soil at different depths, reducing the slow water penetration and easy evaporation of traditional surface irrigation, accelerating the speed of water penetration into deeper layers, and more fully leaching the salt in the deep soil, thus significantly improving the deep treatment effect of saline-alkali land.

[0042] The extension assembly 28 includes multiple adjusting screws 283 rotatably connected to the inner wall of the fixing frame 25. The adjusting screws 283 are threadedly connected to the inner wall of the drip irrigation tube 26. A bevel gear 281 is rotatably connected to the inner wall of the fixing frame 25. A bevel gear 282 is fixedly connected to one end of the adjusting screws 283. The bevel gear 281 and the multiple bevel gears 282 are meshed together. The surface of the bevel gear 281 is provided with a socket 284 for the control assembly 24 to be inserted.

[0043] In this embodiment: when the control component 24 is inserted into the insertion hole 284 on the surface of the bevel gear 281, rotating the control component 24 will drive the bevel gear 281 to rotate. The bevel gear 281 drives multiple bevel gears 282 and the adjusting screw 283 to rotate. The adjusting screw 283 controls the drip irrigation pipe 26 and one end of the conical head 27 to be inserted into the soil.

[0044] The control component 24 includes a shaft 243, which is inserted into the inner walls of the through hole 210 and the insertion hole 284 respectively. The upper end of the shaft 243 is fixedly connected to a turntable 241, and the surface of the turntable 241 is provided with a slot 242, which is hexagonal.

[0045] In this implementation scheme: When controlling, the insert shaft 243 can be first inserted into the through hole 210 on the surface of the embedded tube 21, and then sequentially inserted into the insertion hole 284 on the surface of the inner bevel gear 281 of the fixing bracket 25. By using the handle, the insert shaft 243 can be rotated to achieve the adjustment operation. Alternatively, a plug of the corresponding shape can be installed by a power tool and then inserted into the regular hexagon, and the rotation operation can be controlled by a power tool.

[0046] The water delivery component 22 includes a water distribution ring 222 installed in the inner wall of the buried pipe 21. Multiple branch pipes 224 are installed on the lower surface of the water distribution ring 222. Multiple telescopic pipes 225 are fixedly connected to the surface of the branch pipes 224. The other end of the telescopic pipes 225 is connected to the drip irrigation pipe 26. A connector 223 is installed on the upper surface of the water distribution ring 222 and penetrates the buried pipe 21. A connecting pipe 221 is installed at one end of the connector 223. The other end of the connecting pipe 221 is connected to the output port of the regulating mechanism 3. The connecting pipe 221 is a telescopic corrugated pipe.

[0047] In this implementation scheme: the main water supply pipe 1 delivers water to the connecting pipe 221 through the regulating mechanism 3. The connecting pipe 221 delivers water to the connector 223, the water distribution ring 222, the branch pipe 224 and the telescopic pipe 225 in sequence. The telescopic pipe 225 delivers water to the drip irrigation pipe 26. The distance between two adjacent buried pipes 21 can be reasonably controlled by the telescopic corrugated pipe.

[0048] The limiting component 23 includes a threaded groove 231 formed on the surface of the embedded tube 21, a limiting ring 232 threadedly connected to the threaded groove 231, a plurality of protrusions 233 fixedly connected to the surface of the limiting ring 232, and a groove 234 formed on the surface of the embedded tube 21, with a scale 235 provided in the groove 234.

[0049] In this implementation scheme: the limiting ring 232 can be rotated in the threaded groove 231 and, in conjunction with the scale 235 in the groove 234, the position of the limiting ring 232 in multiple embedded tubes 21 can be precisely adjusted to ensure consistent insertion depth. At the same time, the limiting ring 232, in conjunction with the convex ring, can reduce the phenomenon of tilting of the embedded tube 21.

[0050] An adjusting mechanism 3 is provided between the water supply main pipe 1 and the water conveying component 22 to control the water inlet volume of the water conveying component 22. The adjusting mechanism 3 includes a housing 31 installed on the water supply main pipe 1. The output end of the housing 31 is connected to the water supply main pipe 1 and the water conveying component 22. A rubber tube 34 is fixedly connected to the inner wall of the housing 31. The rubber tube 34 is connected to the input end and the output end of the housing 31. Two fixing sleeves 35 are fixedly connected to the inner wall of the housing 31 and are fitted onto the rubber tube 34. Two pressure plates 33 are slidably connected to the inner wall of the housing 31. A bidirectional screw 32 is rotatably connected to the inner wall of the housing 31. The bidirectional screw 32 is threadedly connected to the inner wall of the two pressure plates 33.

[0051] In this implementation scheme: During the adjustment process, the bidirectional screw 32 can be rotated, which can control the two pressure plates 33 to move closer to the rubber tube 34 and squeeze the rubber tube 34, thereby realizing the adjustment of water delivery volume. At the same time, when the two pressure plates 33 are squeezed to a certain position, the water can be cut off. This allows for the control of the water inlet volume of the water delivery component 22 in the separate irrigation mechanism 2, and the irrigation volume can be flexibly adjusted according to the degree of soil salinization, achieving targeted treatment and reducing water waste.

[0052] The working principle of this invention is as follows: When in use, the limiting ring 232 can first be rotated on the threaded groove 231 on the surface of the buried pipe 21, and in conjunction with the scale 235 in the groove 234, the limiting ring 232 in the multiple buried pipes 21 can be adjusted to the position corresponding to the scale 235. Then, the multiple buried pipes 21 are inserted or buried into the soil to be treated at a certain interval. After insertion or burial, the limiting ring 232 and the protrusion 233 can provide support and limitation.

[0053] Then, the insert shaft 243 can be inserted into the through hole 210 on the surface of the embedded pipe 21, and then sequentially inserted into the insertion holes 284 on the surface of the bevel gear 281 in the multiple fixing brackets 25. By using the handle, the insert shaft 243 can be rotated, which in turn drives the bevel gear 281 to rotate. The bevel gear 281 drives the multiple bevel gears 282 and the adjusting screw 283 to rotate. The adjusting screw 283 controls one end of the drip irrigation pipe 26 and the conical head 27. The conical head 27 is inserted into the soil to achieve the adjustment operation. Alternatively, a plug of the corresponding shape can be installed using a power tool and then inserted into the regular hexagon. The rotation operation can be controlled by the power tool. After the conical head 27 is inserted into the soil, the drip irrigation pipe 26 extends into the soil as well, forming multiple fixing brackets. At this point, the main water supply pipe 1 supplies water, and the water source is sequentially delivered to the connecting pipe 221, connector 223, water distribution ring 222, branch pipe 224 and telescopic pipe 225 through the regulating mechanism 3. The telescopic pipe 225 delivers water to the drip irrigation pipe 26, and the water outlet 262 in the drip irrigation pipe 26 discharges water, realizing irrigation operation at different soil depths. During the irrigation process, the regulating mechanism 3 can be controlled to control the water intake of each irrigation mechanism 2 individually. When adjusting, the bidirectional screw 32 can be rotated, and the bidirectional screw 32 can control the two pressure plates 33 to move closer to the rubber tube 34 and squeeze the rubber tube 34, thereby realizing the adjustment of the water delivery volume. At the same time, when the two pressure plates 33 are squeezed to a certain position, the water can be cut off.

[0054] In addition, after the control component 24 has completed its control operation, the insert shaft 243 can be pulled out from the through hole 210 on the surface of the embedded tube 21, and then the sealing plug 29 can be inserted into the through hole 210 on the surface of the embedded tube 21 to achieve the sealing operation.

[0055] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An irrigation device for saline-alkali land treatment, comprising a main water supply pipe (1) for water supply, characterized in that: Multiple irrigation mechanisms (2) are evenly distributed on both sides of the main water supply pipe (1). The irrigation mechanism (2) includes a buried pipe (21). Multiple equally spaced fixing brackets (25) are fixedly connected to the inner wall of the buried pipe (21). Multiple drip irrigation pipes (26) are slidably connected to the inner wall of the fixing brackets (25). A circular hole is provided on the surface of the buried pipe (21) for the drip irrigation pipes (26) to pass through. A conical head (27) is fixedly connected to one end of each drip irrigation pipe (26). A water conveying assembly (22) is provided in the buried pipe (21) for conveying water from the main water supply pipe (1). Water is supplied to the drip irrigation pipe (26). The inner wall of the fixing frame (25) is provided with an extension component (28) for controlling multiple drip irrigation pipes (26) to extend out from the round hole on the surface of the buried pipe (21). The surface of the drip irrigation pipe (26) is provided with a through hole (210). A control component (24) is inserted in the through hole (210) for controlling multiple sets of extension components (28) to move synchronously. The surface of the buried pipe (21) is also provided with a limit component (23) for limiting the insertion depth of the buried pipe (21). An adjustment mechanism (3) is provided between the water supply main pipe (1) and the water conveying component (22) to control the water inlet volume of the water conveying component (22); The extension assembly (28) includes a plurality of adjusting screws (283) rotatably connected to the inner wall of the fixing frame (25). The adjusting screws (283) are threadedly connected to the inner wall of the drip irrigation pipe (26). The inner wall of the fixing frame (25) is rotatably connected to a bevel gear one (281). One end of the adjusting screw (283) is fixedly connected to a bevel gear two (282). The bevel gear one (281) and the plurality of bevel gear two (282) are meshed together. The surface of the bevel gear one (281) is provided with a socket (284) for the control assembly (24) to be inserted.

2. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The control component (24) includes a plug shaft (243), which is inserted into the inner wall of the through hole (210) and the plug hole (284) respectively, and a turntable (241) is fixedly connected to the upper end of the plug shaft (243).

3. The irrigation device for saline-alkali land treatment according to claim 2, characterized in that: The surface of the turntable (241) is provided with a slot (242), which is hexagonal in shape.

4. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The water delivery assembly (22) includes a water distribution ring (222) installed in the inner wall of the buried pipe (21). Multiple branch pipes (224) are installed on the lower surface of the water distribution ring (222). Multiple telescopic pipes (225) are fixedly connected to the surface of the branch pipes (224). The other end of the telescopic pipes (225) is connected to the drip irrigation pipe (26). A connector (223) is installed on the upper surface of the water distribution ring (222) and penetrates the buried pipe (21). A connecting pipe (221) is installed at one end of the connector (223). The other end of the connecting pipe (221) is connected to the output port of the regulating mechanism (3).

5. The irrigation device for saline-alkali land treatment according to claim 4, characterized in that: The connecting pipe (221) is a telescopic corrugated pipe.

6. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The regulating mechanism (3) includes a housing (31) installed on the water supply main pipe (1). The output end of the housing (31) is connected to the water supply main pipe (1) and the output end is connected to the water conveying component (22). A rubber tube (34) is fixedly connected to the inner wall of the housing (31). The rubber tube (34) is connected to the input end and the output end of the housing (31). Two fixed sleeves (35) are fixedly connected to the inner wall of the housing (31) and are sleeved on the rubber tube (34). Two pressure plates (33) are slidably connected to the inner wall of the housing (31). A bidirectional screw (32) is rotatably connected to the inner wall of the housing (31). The bidirectional screw (32) is threadedly connected to the inner wall of the two pressure plates (33).

7. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The drip irrigation pipe (26) includes a pipe body (261), and the surface of the pipe body (261) is provided with a plurality of circumferentially distributed water outlet holes (262), and the inner wall of the pipe body (261) is fixedly connected with a protective net (263).

8. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The limiting component (23) includes a threaded groove (231) formed on the surface of the embedded tube (21), a limiting ring (232) is threadedly connected to the threaded groove (231), a plurality of protrusions (233) are fixedly connected to the surface of the limiting ring (232), and a groove (234) is formed on the surface of the embedded tube (21), and a scale (235) is provided in the groove (234).

9. The irrigation device for saline-alkali land treatment according to claim 1, characterized in that: The surface of the embedded tube (21) is fixedly connected to a connecting band (211), and a sealing plug (29) is fixedly connected to one end of the connecting band (211). The sealing plug (29) is inserted into the inner wall of the through hole (210).

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