Water-saving vegetation drip irrigation device for desertification control

Abstract

The invention belongs to the technical field of drip irrigation equipment, and discloses a water-saving vegetation drip irrigation device for desertification control, which is technically characterized by comprising a bottom ring, a plurality of groups of annularly distributed drip irrigation pipes are fixedly mounted on the bottom wall of the bottom ring, and a plurality of groups of permeable holes are respectively formed in the surfaces of the drip irrigation pipes along different heights. The drip irrigation pipe is internally provided with a layered drip irrigation mechanism matched with the water permeable holes, the layered drip irrigation mechanism comprises a sealing assembly and a fixed-height drainage assembly, and the sealing assembly is matched with the fixed-height drainage assembly, so that the water permeable holes at different heights in the surface of the drip irrigation pipe can be gradually switched to a through state from top to bottom; the irrigation depth can be gradually increased through the water permeable holes in the surface of the drip irrigation pipe, the vegetation root system can be guided to extend towards the deep soil during irrigation, and the vegetation root system is promoted to autonomously absorb water contained in the deep soil.

Description

Technical Field

[0001] The present invention relates to the technical field of drip irrigation equipment, and specifically to a water-saving vegetation drip irrigation device for desertification control. Background Technique

[0002] Desertification control refers to the governance measures for land degradation occurring in arid, semi-arid regions, as well as some semi-humid regions, southern humid regions, and the Qinghai-Tibet Plateau region. Desertification control should adhere to the principle of combining the maintenance of ecological balance with the improvement of economic benefits, and combining the treatment of mountains, waters, alkalis (saline-alkali), and sands. Under the existing economic and technical conditions, prevention should be the main focus to protect and restore desert vegetation in a planned manner. Key areas with severe dune invasion and wind-sand hazards should be treated, and comprehensive management should be carried out according to local conditions.

[0003] In desertification control, water resources are an important and relatively scarce resource for restoring desert vegetation. Therefore, how to rationally utilize water resources is one of the issues that need to be considered in desertification control. Drip irrigation is a relatively effective method for saving water resources in restoring desert vegetation. Drip irrigation uses plastic pipes to deliver water to the roots of crops for local irrigation through orifices or drippers on a capillary tube with a diameter of about 10 mm.

[0004] Existing drip irrigation equipment generally directly lays the drip pipes on the surface of the sandy soil near the roots of the vegetation. During the drip irrigation process, water is directly discharged onto the surface of the sandy soil, and the water cannot penetrate to the deep soil layer. The roots of the vegetation can only absorb the water in the shallow soil layer, and the roots of the vegetation cannot extend to the deep soil layer. When the water in the shallow soil layer is lacking, there is no protection from the deep soil layer for the roots, resulting in poor growth of the vegetation roots and the vegetation being prone to directly dying due to water shortage. Summary of the Invention

[0005] The purpose of the present invention is to provide a water-saving vegetation drip irrigation device for desertification control to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A water-saving vegetation drip irrigation device for desertification control, comprising a bottom ring. A plurality of groups of drip irrigation pipes distributed in a ring shape are fixedly installed on the bottom wall of the bottom ring. A plurality of groups of water permeable holes are respectively arranged on the surface of the drip irrigation pipes at different heights. An arc-shaped water injection cavity is arranged inside the bottom ring, and the water injection cavity is communicated with the top ends of the drip irrigation pipes. A docking pipe orifice communicated with the water injection cavity is arranged on the side wall of the bottom ring. A layered drip irrigation mechanism matched with the water permeable holes is arranged in the drip irrigation pipes. The layered drip irrigation mechanism comprises a sealing component and a height-determining drainage component. The sealing component is located on the inner side wall of the drip irrigation pipe, and the sealing component is used for controlling the water permeable holes on the surface of the drip irrigation pipe to be in a closed state. The height-determining drainage component is located in the inner cavity of the drip irrigation pipe, and the height-determining drainage component controls the water permeable holes at corresponding heights on the surface of the drip irrigation pipe to switch to a through state by cooperating with the sealing component.

[0008] As a further scheme of the present invention: The sealing component comprises a telescopic groove arranged on the inner side wall of the drip irrigation pipe outside the water permeable hole. A baffle is slidably installed in the telescopic groove along the vertical direction. A compression spring is fixedly installed on the bottom wall of the telescopic groove, and the telescopic end of the compression spring is connected to the bottom wall of the baffle. The baffle is in mutual fit with one end of the water permeable hole facing the inner cavity of the drip irrigation pipe.

[0009] As a further scheme of the present invention: The height-determining drainage component comprises a sealing plate slidably installed in the inner cavity of the drip irrigation pipe along the vertical direction. The baffle is made of a magnetic material, and a magnetic sheet matched with the baffle is arranged on the side wall of the sealing plate. A vertical rod is fixedly installed on the surface of the sealing plate. The top ends of a plurality of groups of vertical rods slide and extend above the bottom ring and are jointly fixedly installed with a control ring. A positioning mechanism matched with the vertical rod is arranged on the surface of the bottom ring. The positioning mechanism comprises a clamping component and an adjusting component. The clamping component is located on the surface of the bottom ring and is connected to the vertical rod. The adjusting component is located outside the bottom ring and is connected to the clamping component. The adjusting component fixes the position of the vertical rod on the surface of the bottom ring by cooperating with the clamping component.

[0010] As a further scheme of the present invention: The clamping component comprises a plurality of groups of equally spaced clamping holes arranged on the surface of the vertical rod along the vertical direction. Two groups of parallelly arranged vertical plates located outside the vertical rod are fixedly installed on the surface of the bottom ring. A clamping column matched with the clamping holes is jointly slidably installed on the two groups of vertical plates. A side plate is fixedly installed on the surface of the clamping column. A return spring is fixedly installed on the surface of one group of vertical plates, and the telescopic end of the return spring is sleeved outside the clamping column and is connected to the side plate.

[0011] As a further scheme of the present invention: The adjusting component comprises a traction rope fixedly installed at one end of the clamping column far away from the vertical rod. The far ends of a plurality of groups of traction ropes away from the clamping column are jointly fixedly installed with an adjusting ring, and the adjusting ring is sleeved outside the bottom ring.

[0012] As a further solution of the present invention: a first opening is provided on the surface of the bottom ring.

[0013] As a further solution of the present invention: a second opening is provided on the surface of the control ring.

[0014] As a further solution of the present invention: the bottom end of the drip irrigation pipe is arranged in a conical structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the sealing component and the height-fixed drainage component to cooperate with each other, the water-permeable holes at different heights on the surface of the drip irrigation pipe can be switched to the through state step by step from top to bottom. Through the water-permeable holes on the surface of the drip irrigation pipe, the irrigation depth can be gradually deepened. While irrigating, it can guide the roots of the vegetation to extend towards the deep soil layer, promoting the roots of the vegetation to independently absorb the water contained in the deep soil. In the dry season, the roots of the vegetation can also absorb the water in the deep soil, avoiding the dehydration and death of the roots of the vegetation due to the inability to absorb water in the shallow soil. It solves the problem that the existing drip irrigation equipment directly discharges water to the surface of the sandy land during drip irrigation, and the water cannot penetrate into the deep soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a three-dimensional structural schematic diagram of a water-saving vegetation drip irrigation device for desertification control provided in an embodiment of the present invention.

[0017] Figure 2 FIG. 2 is a front view structural schematic diagram of a water-saving vegetation drip irrigation device for desertification control provided in an embodiment of the present invention.

[0018] Figure 3 FIG. Figure 1 is an enlarged structural schematic diagram of A in FIG.

[0019] Figure 4 FIG. Figure 2 is an enlarged structural schematic diagram of B in FIG.

[0020] Figure 5 FIG. Figure 2 is an enlarged structural schematic diagram of C in FIG.

[0021] Figure 6 FIG. 5 is a schematic diagram of the water-permeable holes and their connection structure in a water-saving vegetation drip irrigation device for desertification control provided in an embodiment of the present invention.

[0022] Figure 7 FIG. 6 is a schematic diagram of the sealing plate and its connection structure in a water-saving vegetation drip irrigation device for desertification control provided in an embodiment of the present invention.

[0023] Wherein: 1-bottom ring, 2-drip irrigation pipe, 21-permeable hole, 3-water injection cavity, 31-docking pipe orifice, 4-layered drip irrigation mechanism, 41-sealing assembly, 411-expansion slot, 412-baffle plate, 413-extrusion spring, 42-fixed height drainage and guiding assembly, 421-sealing plate, 422-magnetic sheet, 423-vertical rod, 424-control ring, 5-positioning mechanism, 51-latching assembly, 511-latching hole, 512-vertical plate, 513-latching post, 514-side plate, 515-reset spring, 52-adjusting assembly, 521-adjusting ring, 522-traction rope, 6-first opening, 7-second opening. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0025] The following describes in detail the specific implementation of the present invention in combination with specific embodiments.

[0026] As Figure 1 、 Figure 2 shown, the figure is a structural diagram of a water-saving vegetation drip irrigation device for desertification control provided by an embodiment of the present invention, including a bottom ring 1. A plurality of groups of drip irrigation pipes 2 distributed in a ring shape are fixedly installed on the bottom wall of the bottom ring 1. A plurality of groups of permeable holes 21 are respectively opened on the surface of the drip irrigation pipe 2 at different heights. An arc-shaped water injection cavity 3 is opened inside the bottom ring 1. The water injection cavity 3 is communicated with the top end of the drip irrigation pipe 2. A docking pipe orifice 31 communicated with the water injection cavity 3 is arranged on the side wall of the bottom ring 1. A layered drip irrigation mechanism 4 matched with the permeable holes 21 is arranged in the drip irrigation pipe 2. The layered drip irrigation mechanism 4 includes a sealing assembly 41 and a fixed height drainage and guiding assembly 42. The sealing assembly 41 is located on the inner side wall of the drip irrigation pipe 2, and the sealing assembly 41 is used to control the permeable holes 21 on the surface of the drip irrigation pipe 2 to be in a closed state. The fixed height drainage and guiding assembly 42 is located in the inner cavity of the drip irrigation pipe 2, and the fixed height drainage and guiding assembly 42 controls the permeable holes 21 at the corresponding height on the surface of the drip irrigation pipe 2 to switch to a through state by cooperating with the sealing assembly 41.

[0027] In use, the bottom ring 1 is sleeved outside the vegetation, and the bottom ring 1 is pressed downward to insert multiple groups of drip irrigation pipes 2 into the soil inside the outside of the vegetation. The bottom ring 1 is sleeved on the sandy surface at the root of the vegetation, and the docking pipe orifice 31 on the side wall of the bottom ring 1 is connected to an external water pipe. Initially, the sealing assembly 41 seals the water permeable holes 21 at different heights on the side wall of the drip irrigation pipe 2. When watering the vegetation is required, the external water pipe transports water into the water injection cavity 3 inside the bottom ring 1, and the water injection cavity 3 further transports the water into the drip irrigation pipe 2. The height-fixed drainage assembly 42 and the sealing assembly 41 cooperate with each other to control the water permeable hole 21 at the highest position on the surface of the drip irrigation pipe 2 to switch to a through state. At this time, the water in the inner cavity of the drip irrigation pipe 2 passes through the water permeable hole 21 at the highest position and then penetrates into the shallow soil layer. At this time, the root system of the plant can absorb the water in the shallow soil layer. As the vegetation grows continuously, the height-fixed drainage assembly 42 and the sealing assembly 41 cooperate with each other to sequentially control the water permeable holes 21 at different heights to switch to a through state from top to bottom. As the depth of the through water permeable holes 21 continuously increases, the deep soil layer can be gradually humidified. While watering the vegetation, the root system of the vegetation can be guided to gradually extend into the deep soil layer, promoting the root system of the vegetation to independently absorb the water contained in the deep soil layer. In the dry season, the root system of the vegetation can also absorb the water in the deep soil layer, preventing the root system of the vegetation from being unable to take root in the deep soil layer and the root system being unable to absorb water in the shallow soil layer.

[0028] As Figure 2 , Figure 4 , Figure 6 shown, as a preferred embodiment of the present invention, the sealing assembly 41 includes a telescopic groove 411 formed in the inner side wall of the drip irrigation pipe 2 outside the water permeable hole 21. A baffle 412 is slidably installed in the telescopic groove 411 in the vertical direction. A compression spring 413 is fixedly installed on the bottom wall of the telescopic groove 411. The telescopic end of the compression spring 413 is connected to the bottom wall of the baffle 412. The baffle 412 is in close contact with one end of the water permeable hole 21 facing the inner cavity of the drip irrigation pipe 2.

[0029] After the drip irrigation pipe 2 is inserted into the soil, the spring 413 is squeezed to apply a vertically upward thrust to the baffle 412. The baffle 412 is located in the upper half of the telescopic groove 411. At this time, the baffle 412 seals the water permeable holes 21. When watering the vegetation, the height-fixed drainage component 42 controls the baffle 412 at the highest position on the surface of the drip irrigation pipe 2 to move downward in the telescopic groove 411. At this time, the water permeable holes 21 at the highest position are switched to the through state. The water in the inner cavity of the drip irrigation pipe 2 can penetrate through the water permeable holes 21 and seep into the shallow soil layer, facilitating the vegetation roots to absorb water. As the vegetation grows continuously, the height-fixed drainage component 42 can gradually control the baffle 412 at different heights on the surface of the drip irrigation pipe 2 to move downward in the telescopic groove 411 from top to bottom, and then gradually control the water permeable holes 21 at different heights on the surface of the drip irrigation pipe 2 to be switched to the through state from top to bottom. As the depth of the through water permeable holes 21 continuously increases, the deep soil layer can be gradually humidified. While watering the vegetation, it can guide the roots of the vegetation to gradually extend into the deep soil layer and promote the vegetation roots to independently absorb the water contained in the deep soil layer.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 shown, as a preferred embodiment of the present invention, the height-fixed drainage component 42 includes a sealing plate 421 slidably installed in the inner cavity of the drip irrigation pipe 2 in the vertical direction. The baffle 412 is made of a magnetic material. A magnetic sheet 422 that cooperates with the baffle 412 is provided on the side wall of the sealing plate 421. A vertical rod 423 is fixedly installed on the surface of the sealing plate 421. The tops of multiple groups of vertical rods 423 slide and extend above the bottom ring 1 and are jointly fixedly installed with a control ring 424. A positioning mechanism 5 that cooperates with the vertical rod 423 is provided on the surface of the bottom ring 1. The positioning mechanism 5 includes a clamping component 51 and an adjusting component 52. The clamping component 51 is located on the surface of the bottom ring 1 and is connected to the vertical rod 423. The adjusting component 52 is located outside the bottom ring 1 and is connected to the clamping component 51. The adjusting component 52 fixes the position of the vertical rod 423 on the surface of the bottom ring 1 by cooperating with the clamping component 51.

[0031] The clamping component 51 fixes the position of the vertical rod 423 on the surface of the bottom ring 1. Multiple groups of vertical rods 423 support and position the control ring 424. Vegetation passes through the control ring 424, and the control ring 424 can protect the vegetation. In windy weather, the control ring 424 can provide lateral support to the vegetation, effectively preventing the vegetation from being blown crooked or even blown down. When it is necessary to irrigate the vegetation, the adjusting component 52 cooperates with the clamping component 51 to temporarily release the restriction on the vertical rod 423. The staff presses down the control ring 424. The control ring 424 and the vertical rod 423 cooperate with each other to push the sealing plate 421 to move downward synchronously in the inner cavity of the drip irrigation pipe 2. The sealing plate 421 drives the magnetic sheet 422 to move downward. When the sealing plate 421 moves to the outside of the expansion slot 411 at the highest position, the magnetic sheet 422 is integrated with the baffle 412 through magnetic attraction. The sealing plate 421 drives the baffle 412 to move downward synchronously in the expansion slot 411. At this time, the water permeable holes 21 can be switched to the through state. The water above the sealing plate 421 penetrates through the water permeable holes 21 and seeps into the shallow soil layer to irrigate the roots of the vegetation. As the vegetation continues to grow, press down the control ring 424 again. The control ring 424 and the vertical rod 423 cooperate with each other to drive the sealing plate 421 to move downward again by a certain distance in the inner cavity of the drip irrigation pipe 2. At this time, the sealing plate 421 can control the water permeable holes 21 below to be switched to the through state, and the upper baffle 412 is separated from the sealing plate 421. The compression spring 413 pushes the upper baffle 412 to move to the upper half of the expansion slot 411, and the upper water permeable holes 21 are automatically switched to the closed state, which can gradually deepen the irrigation depth and guide and promote the roots of the vegetation to gradually extend into the deep soil layer.

[0032] As Figure 2 , Figure 3 , Figure 5 , Figure 7 shown, as a preferred embodiment of the present invention, the clamping component 51 includes multiple groups of equally spaced clamping holes 511 formed in the vertical direction on the surface of the vertical rod 423. Two sets of parallel vertical plates 512 are fixedly installed on the surface of the bottom ring 1 and are located outside the vertical rod 423. A clamping column 513 that cooperates with the clamping holes 511 is slidably installed on the two sets of vertical plates 512. A side plate 514 is fixedly installed on the surface of the clamping column 513. A return spring 515 is fixedly installed on the surface of one set of vertical plates 512. The telescopic end of the return spring 515 is sleeved outside the clamping column 513 and is connected to the side plate 514.

[0033] Initially, the reset spring 515 exerts a thrust on the side plate 514, and thus synchronously exerts a thrust on the clamping post 513. The clamping post 513 is inserted into the clamping hole 511 on the surface of the vertical rod 423. The clamping post 513 and the clamping hole 511 cooperate with each other, and the vertical rod 423 and the control ring 424 can be supported and positioned on the surface of the bottom ring 1. At this time, the sealing plate 421 is stably located in the inner cavity of the drip irrigation pipe 2. When it is necessary to gradually control the water permeable holes 21 at different heights to switch to the through state from top to bottom, the adjusting assembly 52 controls the clamping post 513 to move away from the vertical rod 423. At this time, the clamping post 513 and the clamping hole 511 are separated from each other. By pressing the control ring 424, the control ring 424 and the vertical rod 423 cooperate with each other, and the sealing plate 421 can be pushed to move downward in the inner cavity of the drip irrigation pipe 2. When the sealing plate 421 moves downward by a certain distance, the clamping post 513 is inserted into the clamping hole 511 again, and the positions of the vertical rod 423, the control ring 424 and the sealing plate 421 can be fixed again. The water permeable holes 21 below can be controlled to switch to the through state.

[0034] As Figure 2 , Figure 3 , Figure 5 shown, as a preferred embodiment of the present invention, the adjusting assembly 52 includes a traction rope 522 fixedly installed at one end of the clamping post 513 away from the vertical rod 423. One ends of multiple groups of traction ropes 522 away from the clamping post 513 are commonly fixedly installed with an adjusting ring 521, and the adjusting ring 521 is sleeved outside the bottom ring 1.

[0035] When it is necessary to adjust the irrigation depth, the adjusting ring 521 is pressed downward outside the bottom ring 1. The adjusting ring 521 and the traction rope 522 cooperate with each other, and the clamping post 513 can be pulled to move away from the vertical rod 423. At this time, the clamping post 513 and the clamping hole 511 are separated from each other. By pressing the control ring 424, the control ring 424 and the vertical rod 423 cooperate with each other, and the sealing plate 421 can be pushed to move downward in the inner cavity of the drip irrigation pipe 2.

[0036] As Figure 1 shown, as a preferred embodiment of the present invention, a first opening 6 is formed on the surface of the bottom ring 1. Through the first opening 6, the bottom ring 1 can be sleeved outside the vegetation from the side.

[0037] As Figure 1 shown, as a preferred embodiment of the present invention, a second opening 7 is formed on the surface of the control ring 424. Through the second opening 7, the control ring 424 can be sleeved outside the vegetation from the side.

[0038] As Figure 1 , Figure 2 shown, as a preferred embodiment of the present invention, the bottom end of the drip irrigation pipe 2 is provided with a conical structure. The conical structure can conveniently insert the drip irrigation pipe 2 into the soil.

[0039] The working principle of the present invention is as follows: When in use, the bottom ring 1 is sleeved outside the vegetation. By pressing the bottom ring 1 downward, multiple groups of drip irrigation pipes 2 are inserted into the soil outside the vegetation. The bottom ring 1 is sleeved on the sandy surface at the root of the vegetation, and the docking pipe orifice 31 on the side wall of the bottom ring 1 is connected to an external water pipe. Initially, the compression spring 413 exerts a vertically upward thrust on the baffle 412. The baffle 412 is located in the upper half of the telescopic groove 411. At this time, the baffle 412 seals the water permeable holes 21.

[0040] When it is necessary to adjust the irrigation depth, press the adjusting ring 521 downward on the outside of the bottom ring 1. The adjusting ring 521 and the traction rope 522 cooperate with each other, and can pull the clamping column 513 to move away from the vertical rod 423. At this time, the clamping column 513 is separated from the clamping hole 511. Press the control ring 424. The control ring 424 and the vertical rod 423 cooperate with each other, and can push the sealing plate 421 to move downward in the inner cavity of the drip irrigation pipe 2. The sealing plate 421 drives the magnetic sheet 422 to move downward. When the sealing plate 421 moves to the outside of the telescopic groove 411 at the highest position, the magnetic sheet 422 is integrated with the baffle 412 through magnetic attraction. The sealing plate 421 drives the baffle 412 to move downward synchronously in the telescopic groove 411. At this time, the water permeable holes 21 can be switched to the through state. The water above the sealing plate 421 penetrates through the water permeable holes 21 into the shallow soil layer, and can irrigate the roots of the vegetation. As the vegetation continues to grow, press the control ring 424 downward again. The control ring 424 and the vertical rod 423 cooperate with each other, and can drive the sealing plate 421 to move downward again by a certain distance in the inner cavity of the drip irrigation pipe 2. At this time, the sealing plate 421 can control the water permeable holes 21 below to be switched to the through state. The upper baffle 412 is separated from the sealing plate 421. The compression spring 413 pushes the upper baffle 412 to move to the upper half of the telescopic groove 411, and the upper water permeable holes 21 are automatically switched to the closed state, so as to gradually deepen the irrigation depth and guide the roots of the vegetation to gradually extend into the deep soil layer. Promote the roots of the vegetation to independently absorb the water contained in the deep soil layer. In the dry season, the roots of the vegetation can also absorb the water in the deep soil layer, preventing the roots of the vegetation from being unable to take root in the deep soil layer and the roots being unable to absorb water in the shallow soil layer.

[0041] The above has described the preferred embodiments of the present invention in detail. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A water-saving vegetation drip irrigation device for desertification control, including a bottom ring, characterized in that, A plurality of groups of drip irrigation pipes distributed in a ring shape are fixedly installed on the bottom wall of the bottom ring, and a plurality of groups of water permeable holes are respectively formed on the surface of the drip irrigation pipes at different heights; An arc-shaped water injection cavity is formed inside the bottom ring, the water injection cavity is communicated with the top end of the drip irrigation pipe, and a butt joint pipe orifice communicated with the water injection cavity is arranged on the side wall of the bottom ring; A layered drip irrigation mechanism matched with the water permeable holes is arranged in the drip irrigation pipe, and the layered drip irrigation mechanism comprises a sealing component and a height-determining drainage component; The sealing component is located on the inner side wall of the drip irrigation pipe, and the sealing component is used for controlling the water permeable holes on the surface of the drip irrigation pipe to be in a closed state; The height-determining drainage component is located in the inner cavity of the drip irrigation pipe, and the height-determining drainage component controls the water permeable holes at corresponding heights on the surface of the drip irrigation pipe to be switched to a through state by cooperating with the sealing component; 2. The water-saving vegetation drip irrigation device for desertification control according to claim 1, wherein The sealing component comprises a telescopic groove formed on the inner side wall of the drip irrigation pipe and located outside the water permeable hole, a baffle is slidably installed in the telescopic groove along the vertical direction, a compression spring is fixedly installed on the bottom wall of the telescopic groove, the telescopic end of the compression spring is connected with the bottom wall of the baffle, and the baffle is attached to one end of the water permeable hole facing the inner cavity of the drip irrigation pipe; 3. The water-saving vegetation drip irrigation device for desertification control according to claim 2, characterized in that, The height-determining drainage component comprises a sealing plate slidably installed in the inner cavity of the drip irrigation pipe along the vertical direction, the baffle is made of a magnetic material, a magnetic sheet matched with the baffle is arranged on the side wall of the sealing plate, a vertical rod is fixedly installed on the surface of the sealing plate, the top ends of a plurality of groups of vertical rods slide and extend above the bottom ring and are jointly fixedly installed with a control ring, and a positioning mechanism matched with the vertical rod is arranged on the surface of the bottom ring. The positioning mechanism comprises a clamping component and an adjusting component. The clamping component is located on the surface of the bottom ring and is connected with the vertical rod, and the adjusting component is located outside the bottom ring and is connected with the clamping component. The adjusting component fixes the position of the vertical rod on the surface of the bottom ring by cooperating with the clamping component; 4. The water-saving vegetation drip irrigation device for desertification control according to claim 3, characterized in that, The clamping component comprises a plurality of groups of clamping holes formed at equal intervals along the vertical direction on the surface of the vertical rod, two groups of parallelly arranged vertical plates are fixedly installed on the surface of the bottom ring and located outside the vertical rod, a clamping column matched with the clamping holes is slidably installed on the two groups of vertical plates, a side plate is fixedly installed on the surface of the clamping column, and a return spring is fixedly installed on the surface of one group of vertical plates. The telescopic end of the return spring is sleeved outside the clamping column and is connected with the side plate; 5. The water-saving vegetation drip irrigation device for desertification control according to claim 4, characterized in that, The adjusting component comprises a traction rope fixedly installed at one end of the clamping column far away from the vertical rod, and one ends of a plurality of groups of traction ropes far away from the clamping column are jointly fixedly installed with an adjusting ring, and the adjusting ring is sleeved outside the bottom ring; 6. The water-saving vegetation drip irrigation device for desertification control according to claim 1, wherein A first opening is formed on the surface of the bottom ring; 7. The water-saving vegetation drip irrigation device for desertification control according to claim 3, characterized in that, A second opening is formed on the surface of the control ring; 8. The water-saving vegetation drip irrigation device for desertification control according to claim 1, characterized in that, The bottom end of the drip irrigation pipe is arranged in a conical structure.

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