Ecological restoration device for desertification grassland

Abstract

The invention belongs to the technical field of ecological restoration, and particularly relates to a desertification grassland ecological restoration device which comprises a supporting table and a planting assembly movably arranged on the lower wall of the supporting table. In an initial state, repairing half conical heads arranged in pairs are combined into a complete repairing conical head, a first telescopic rod drives a first supporting block to descend, so that the repairing conical head is inserted into a soil layer, a second telescopic rod is started and drives a second supporting block to descend, and a fixed control rod descends to enable a matching rod to slide in a matching groove; a matching rod pushes crossed shear fork rods to open, sliding sleeves are far away from one another on a supporting cross rod, then repairing half conical heads are separated, soil drill holes below are expanded, grass seeds fall into a containing groove from a grass seed storage box through an upper connecting pipe, an adjusting motor drives a synchronous rotating rod to rotate, and the containing groove is made to turn to a lower connecting pipe below; grass seeds fall out from the connecting lower pipe and enter expansion holes formed between the paired repairing half conical heads.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological restoration, and specifically refers to an ecological restoration device for desertified grasslands. Background Art

[0002] Desertified grasslands are types of land degradation in arid, semi-arid, and sub-humid arid regions caused by climate variation and human activities (such as overgrazing, unreasonable reclamation, overexploitation of water resources, etc.). They are characterized by sparse vegetation, soil desertification, and ecological function decline. Their ecological restoration requires combining natural laws with artificial intervention, aiming to restore vegetation, improve soil, and reconstruct the ecosystem.

[0003] The prior art discloses an ecological restoration device for desertified grasslands, with an application publication number of CN118872450A. Grass seeds are temporarily stored in a storage box. When the device is in use, the grass seeds fall from the storage box into the insertion tube and are mixed with nutrient solution and then enter the deeper soil layer, ensuring that the grass seeds are in a moist and nutrient-rich growth environment, improving the survival rate and growth rate of the grass seeds, and being beneficial to the restoration process of desertified grasslands. During this process, when the insertion tube is inserted into the soil layer, the nutrient solution flowing inside the box body will act on the leaf surface, and the support shaft will drive the first bevel gear to rotate accordingly. The first bevel gear can drive the connecting shaft to rotate by meshing with the second bevel gear. The rotation of the connecting shaft can drive the auger blade to rotate. When the auger blade rotates, it can send out the soil that enters the cone head, achieving the technical effect of preventing blockage of the insertion tube and the cone head. However, in actual situations, the auger blade needs to overcome soil friction and gravity to transport the soil, but only relying on the impact force of the nutrient solution on the leaf cannot provide sufficient driving force for the support shaft, and the support shaft cannot effectively drive the rotation of the auger blade through the complex mechanism composed of the first bevel gear and the second bevel gear. Therefore, the technical solution proposed by this invention cannot effectively achieve the sowing of grass seeds and has technical defects.

[0004] Therefore, an ecological restoration device for desertified grasslands is proposed to solve the technical problems existing in the prior desertified grassland restoration process. Summary of the Invention

[0005] To solve the above-mentioned existing problems, the present invention provides a device for ecological restoration of desertified grasslands. In the initial state, the paired restoration semi-cone heads are combined into a complete restoration cone head. At this time, the first telescopic rod drives the first support block to descend, so that the restoration cone head is inserted into the soil layer. The second telescopic rod is activated and drives the second support block to descend. The second support block drives the fixed control rod to descend, and the matching rod slides in the matching groove, so that the matching rod pushes the cross-shaped scissors rods to gradually open. The scissors rods drive the sliding sleeves to move away from each other on the support cross bar, and then the restoration semi-cone heads are separated, drilling and expanding the soil below, facilitating the subsequent grass seed planting process; the grass seeds fall from the grass seed storage box through the grass seed connecting pipe into the connecting upper pipe, and fall from the connecting upper pipe into the receiving groove. The adjusting motor drives the synchronous rotating rod to rotate, so that the receiving groove rotates to the lower part and faces the connecting lower pipe. The grass seeds then fall from the receiving groove into the connecting lower pipe and fall into the expanded holes formed between the paired restoration semi-cone heads. At this time, the nutrient solution placed in the nutrient solution tank flows into the infusion box through the telescopic infusion pipe, and the electric spray head is activated to spray the nutrient solution from the infusion branch pipe into the soil holes, realizing the grass seed planting process.

[0006] The technical solution adopted by the present invention is as follows: A device for ecological restoration of desertified grasslands, including a support platform. A planting component is movably arranged on the lower wall of the support platform. The planting component includes a first telescopic rod, a first support block, a second telescopic rod, a second support block, a support sleeve and a support vertical rod. The first telescopic rods are symmetrically arranged at the left and right edges of the lower wall of the support platform. The first support block is connected between the lower end output ends of the first telescopic rods. The second telescopic rods are symmetrically arranged at the left and right edges of the lower wall of the first support block. The second support block is connected between the lower end output ends of the second telescopic rods. A through hole is penetrated through the middle position of the upper wall of the second support block. The support sleeves are horizontally and arrayedly fixed in the through hole. The support vertical rods are respectively fixed at the four corner positions of the lower wall of the first support block. A support cross bar is connected between the lower ends of the left and right opposite support vertical rods. Paired fixed control rods are horizontally and arrayedly fixed at the front and rear edges of the lower wall of the second support block respectively. Paired sliding sleeves are horizontally and arrayedly slidably arranged on the front and rear opposite support cross bars respectively. Rotating scissors rods are respectively arranged at the upper side walls of the sliding sleeves. The scissors rods arranged on the paired sliding sleeves are cross-rotatably arranged with each other. Matching grooves are respectively opened on the upper half side walls of the scissors rods. Matching rods are respectively fixed at the lower ends of the fixed control rods. The matching rods are respectively slidably arranged in the matching grooves in a matching manner. Restoration semi-cone heads are fixedly connected between the front and rear opposite sliding sleeves. When the matching rods are located at the uppermost ends of the matching grooves, the two restoration semi-cone heads are combined into a complete restoration cone head.

[0007] Further, the support sleeves are respectively arranged above the symmetrically arranged repair half-cone heads. A connecting upper pipe is connected through the upper side wall of the support sleeve, and a connecting lower pipe is connected through the lower side wall of the support sleeve. Control disks are respectively arranged in the support sleeves in coaxial and rotational cooperation. A synchronous rotating rod is rotatably arranged in the through port, and the control disks are respectively coaxially and fixedly arranged on the synchronous rotating rod. An adjusting motor is arranged at the end of the second support block, and the output end of the adjusting motor is connected to the end of the synchronous rotating rod.

[0008] Further, a receiving groove is embedded in the side wall of the control disk. The outer diameter of the receiving groove is the same as the inner diameters of the connecting upper pipe and the connecting lower pipe. When the control disk rotates in the support sleeve, the receiving grooves are respectively arranged opposite to the connecting upper pipe and the connecting lower pipe.

[0009] Further, grass seed communicating pipes are arrayed and penetrated through the upper wall of the first support block along the length direction of the first support block. The lower openings of the grass seed communicating pipes and the connecting upper pipe are respectively arranged opposite to each other up and down, and telescopic feeding pipes are respectively connected through between the lower openings of the grass seed communicating pipes and the connecting upper pipe.

[0010] Further, a grass seed storage box is fixedly arranged at the upper end of the grass seed communicating pipe, and the grass seed storage box communicates with the grass seed communicating pipe.

[0011] Further, a nutrient solution tank is fixedly arranged on the upper wall of the support platform. A telescopic infusion pipe is connected through the lower end of the nutrient solution tank. The telescopic infusion pipe is arranged below the support platform. An infusion box is fixedly arranged on the side wall of the first support block. The lower end of the telescopic infusion pipe is connected to the infusion box. An infusion inner pipe is penetrated through the infusion box. The telescopic infusion pipe communicates with the infusion inner pipe. Infusion branch pipes are arrayed and connected to the lower wall of the infusion box along the length direction of the infusion box. The infusion branch pipes respectively communicate with the infusion inner pipe. Electric spray nozzles are arranged at the lower end openings of the infusion branch pipes, and the electric spray nozzles are respectively arranged opposite to the paired repair half-cone heads.

[0012] Further, a main controller is fixedly arranged on the upper wall of the support platform, and a control panel is fixedly arranged on one side of the main controller.

[0013] Further, a liquid inlet opening is arranged at the upper end of the nutrient solution tank. Legs are respectively fixedly arranged at the four corner positions of the lower wall of the support platform. Moving wheels are respectively arranged at the lower ends of the legs. A moving handrail is fixedly arranged at one end of the support platform, and the control panel is arranged opposite to the moving handrail.

[0014] Further, the telescopic infusion pipe and the telescopic feeding pipe are respectively made of rubber hoses.

[0015] Further, the first telescopic rod, the electric spray head, the second telescopic rod, the adjustment motor, and the control panel are electrically connected to the main controller respectively.

[0016] Further, the main controller adopts Siemens S7-1200.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the initial state, the paired repair semi-cone heads are combined into a complete repair cone head. At this time, the first telescopic rod drives the first support block to descend, and the support vertical rod and the support cross rod descend synchronously, so that the repair cone head is inserted into the soil layer. At this time, the second telescopic rod starts and drives the second support block to descend. The second support block drives the fixed control rod to descend, and the cooperation rod slides in the cooperation groove, so that the cooperation rod pushes the mutually crossed scissors rods to gradually open. The scissors rods drive the sliding sleeves to move away from each other on the support cross rod, and then the repair semi-cone heads are separated to drill and expand the soil below, facilitating the subsequent grass seed planting process; (2) The grass seeds are pre-stored in the grass seed storage box. The grass seeds fall from the grass seed storage box into the connecting upper pipe through the grass seed connecting pipe, and fall into the accommodating groove from the connecting upper pipe. The volume of the accommodating groove is small and can only accommodate a small amount of grass seeds, avoiding excessive grass seeds sown at a single point and unable to grow normally. The adjustment motor drives the synchronous rotating rod to rotate, so that the accommodating groove rotates to the lower part and faces the connecting lower pipe. At this time, the grass seeds stored in the connecting upper pipe cannot continue to fall due to the blockage of the side wall of the control disk. The grass seeds in the accommodating groove fall into the connecting lower pipe and fall into the expanded holes formed between the paired repair semi-cone heads. At this time, the nutrient solution placed in the nutrient solution tank flows into the infusion box through the telescopic infusion pipe, and the electric spray head starts to spray the nutrient solution from the infusion branch pipe into the soil holes and mix it with the grass seeds. The grass seeds can grow in a moist and nutrient-rich environment, improving the survival rate and growth rate of the grass seeds; (3) The telescopic feeding pipe and the telescopic infusion pipe are made of rubber hoses. When the first telescopic rod and the second telescopic rod extend, the telescopic infusion pipe and the telescopic feeding pipe can undergo adaptive deformation to ensure that when the positions of the first support block and the second support block change, the connection between the nutrient solution tank and the infusion box and the connection between the grass seed connecting pipe and the connecting upper pipe are always maintained. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a desertified grassland ecological restoration device proposed by the present invention; Figure 2 It is a schematic structural diagram of the planting component; Figure 3 It is Figure 2 The enlarged schematic diagram of part A in Figure 4 It is the schematic structural diagram of the first working condition of the fixed control rod, the scissors rod, the sliding sleeve, and the repair semi-cone head; Figure 5 Schematic diagram of the second working condition for fixing the control rod, scissor rod, sliding sleeve and repairing half-cone head; Figure 6 Explosion structure diagram of the control panel, synchronous rotation rod and support sleeve; Figure 7 Cross-sectional view of the connecting upper pipe, support sleeve, connecting lower pipe and control panel; Figure 8 Schematic diagram of the telescopic infusion tube, infusion box, infusion branch pipe and electric nozzle; Figure 9 Cross-sectional view of the telescopic infusion tube, infusion box, inner infusion tube and infusion branch pipe.

[0019] Wherein, 1, support platform; 11, nutrient solution tank; 111, liquid inlet opening; 112, telescopic infusion tube; 12, leg; 121, moving wheel; 13, moving armrest; 2, planting assembly; 21, first telescopic rod; 22, first support block; 221, grass seed storage box; 222, grass seed connecting pipe; 223, infusion box; 2231, inner infusion tube; 2232, infusion branch pipe; 2233, electric nozzle; 23, second telescopic rod; 24, second support block; 241, through hole; 242, fixed control rod; 2421, mating rod; 243, adjustment motor; 25, support sleeve; 251, connecting upper pipe; 2511, telescopic blanking pipe; 252, connecting lower pipe; 253, control panel; 2531, accommodating groove; 254, synchronous rotation rod; 26, support vertical rod; 261, support cross rod; 262, sliding sleeve; 263, scissor rod; 2631, mating groove; 27, repairing half-cone head; 3, main controller; 31, control panel.

[0020] The accompanying drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0021] In combination with the accompanying drawings, the present invention will be further described in detail.

[0022] As Figures 1 - 9As shown in the figure, this solution provides a desertified grassland ecological restoration device, including a support platform 1 and a planting component 2. The planting component 2 is movably arranged on the lower wall of the support platform 1. A nutrient solution tank 11 is fixedly arranged on the upper wall of the support platform 1. The lower end of the nutrient solution tank 11 is connected through a telescopic infusion tube 112. The telescopic infusion tube 112 is arranged below the support platform 1 and is made of a rubber hose. A main controller 3 is fixedly arranged on the upper wall of the support platform 1. A control panel 31 is fixedly arranged on one side of the main controller 3. A liquid inlet opening 111 is opened at the upper end of the nutrient solution tank 11. Legs 12 are respectively fixedly arranged at the four corners of the lower wall of the support platform 1. Movable wheels 121 are respectively arranged at the lower ends of the legs 12. A movable handrail 13 is fixedly arranged at one end of the support platform 1. The control panel 31 and the movable handrail 13 are arranged opposite to each other.

[0023] The planting component 2 includes a first telescopic rod 21, a first support block 22, a second telescopic rod 23, a second support block 24, a support sleeve 25 and a support vertical rod 26. The first telescopic rods 21 are symmetrically arranged at the left and right edges of the lower wall of the support platform 1. The first support block 22 is connected between the lower end output ends of the first telescopic rods 21. The second telescopic rods 23 are symmetrically arranged at the left and right edges of the lower wall of the first support block 22. The second support block 24 is connected between the lower end output ends of the second telescopic rods 23. A through hole 241 is penetrated through the middle position of the upper wall of the second support block 24. The support sleeves 25 are horizontally and arrayedly fixed in the through hole 241. The support vertical rods 26 are respectively fixedly arranged at the four corners of the lower wall of the first support block 22. A support cross bar 261 is connected between the lower ends of the left and right opposite support vertical rods 26. Fixed control rods 242 are horizontally and arrayedly and pairwise fixedly arranged at the front and rear edges of the lower wall of the second support block 24. Sliding sleeves 262 are horizontally and arrayedly and pairwise slidably arranged on the front and rear opposite support cross bars 261. Scissor rods 263 are respectively rotatably arranged at the upper ends of the side walls of the sliding sleeves 262. The scissor rods 263 arranged on the paired sliding sleeves 262 are cross-rotatably arranged. Matching grooves 2631 are respectively opened on the upper half side walls of the scissor rods 263. Matching rods 2421 are respectively fixedly arranged at the lower ends of the fixed control rods 242. The matching rods 2421 are respectively slidably arranged in the matching grooves 2631 in a matching manner. A repair semi-cone head 27 is fixedly connected between the front and rear opposite sliding sleeves 262. When the matching rods 2421 are located at the uppermost ends of the matching grooves 2631, the two repair semi-cone heads 27 are combined into a complete repair cone head.

[0024] The support sleeves 25 are respectively arranged above the symmetrically arranged repair semi-cone heads 27. A connecting upper pipe 251 is connected through the upper side wall of the upper end of the support sleeve 25, and a connecting lower pipe 252 is connected through the lower side wall of the lower end of the support sleeve 25. Control disks 253 are respectively arranged in the support sleeves 25 in coaxial and rotational fit. A synchronous rotating rod 254 is rotatably arranged in the through port 241. The control disks 253 are respectively coaxially fixed on the synchronous rotating rod 254. An adjusting motor 243 is arranged at the end of the second support block 24. The output end of the adjusting motor 243 is connected to the end of the synchronous rotating rod 254. A receiving groove 2531 is embedded in the side wall of the control disk 253. The outer diameter of the outer edge of the receiving groove 2531 is the same as the inner diameters of the connecting upper pipe 251 and the connecting lower pipe 252. When the control disk 253 rotates in the support sleeve 25, the receiving groove 2531 is respectively arranged opposite to the connecting upper pipe 251 and the connecting lower pipe 252. Through-seed connecting pipes 222 are arranged in an array along the length direction of the upper wall of the first support block 22. The lower openings of the through-seed connecting pipes 222 and the connecting upper pipe 251 are respectively arranged opposite to each other up and down. Telescopic feeding pipes 2511 are respectively connected through between the lower openings of the through-seed connecting pipes 222 and the connecting upper pipe 251. A grass seed storage box 221 is fixed at the upper end of the through-seed connecting pipe 222. The grass seed storage box 221 is communicated with the through-seed connecting pipe 222. The telescopic feeding pipe 2511 is made of a rubber hose.

[0025] A liquid infusion box 223 is fixed on the side wall of the first support block 22. The lower end of the telescopic liquid infusion pipe 112 is connected to the liquid infusion box 223. A liquid infusion inner pipe 2231 is arranged through the liquid infusion box 223. The telescopic liquid infusion pipe 112 is communicated with the liquid infusion inner pipe 2231. Liquid infusion branch pipes 2232 are connected in an array along the length direction of the lower wall of the liquid infusion box 223. The liquid infusion branch pipes 2232 are respectively communicated with the liquid infusion inner pipe 2231. Electric spray nozzles 2233 are arranged at the lower end openings of the liquid infusion branch pipes 2232. The electric spray nozzles 2233 are respectively arranged opposite to the paired repair semi-cone heads 27.

[0026] The first telescopic rod 21, the electric spray nozzles 2233, the second telescopic rod 23, the adjusting motor 243 and the control panel 31 are respectively electrically connected to the main controller 3.

[0027] Working principle and working process: The user holds the moving handrail 13 and pushes the device to the position of the desertified grassland that needs ecological restoration. In the initial state, the paired repair semi-cone heads 27 are combined into a complete repair cone head, as shown in Figure 2 and Figure 4The state of the repaired semi-cone head 27 is shown. At this time, the repaired semi-cone head 27 is above the lower soil. The user starts the repair program through the control panel 31. The main controller 3 receives the instruction input by the control panel 31 and automatically starts the first telescopic rod 21. At this time, the first telescopic rod 21 drives the first support block 22 to descend, and the support vertical rod 26 and the support cross rod 261 descend synchronously, so that the repair cone head is inserted into the soil layer. At this time, the second telescopic rod 23 starts and drives the second support block 24 to descend. The second support block 24 drives the fixed control rod 242 to descend. The mating rod 2421 slides in the mating groove 2631, so that the mating rod 2421 pushes the cross-shaped shear fork rods 263 to gradually open. The shear fork rods 263 drive the sliding sleeves 262 to move away from each other on the support cross rod 261, and then the repaired semi-cone heads 27 are separated to drill and expand the lower soil, facilitating the subsequent grass seed planting process, such as Figure 5 The state of the repaired semi-cone head 27 shown.

[0028] In the initial state, the receiving groove 2531 on the control disk 253 is above, and the receiving groove 2531 is arranged opposite to the connecting upper pipe 251 at this time, as Figure 7 shown. The user pre-stores the grass seeds in the grass seed storage box 221. The grass seeds fall from the grass seed storage box 221 into the telescopic feeding pipe 2511 and the connecting upper pipe 251 through the grass seed connecting pipe 222, and fall into the receiving groove 2531 from the connecting upper pipe 251. The volume of the receiving groove 2531 is small and can only hold a small amount of grass seeds, avoiding excessive grass seeds sown at a single point and unable to grow normally. The adjustment motor 243 drives the synchronous rotating rod 254 to rotate, so that the receiving groove 2531 rotates to the lower part and is opposite to the connecting lower pipe 252. At this time, the grass seeds stored in the connecting upper pipe 251 cannot continue to fall under the block of the side wall of the control disk 253. The grass seeds in the receiving groove 2531 fall into the connecting lower pipe 252 and fall into the expanded holes formed between the paired repaired semi-cone heads 27, completing the grass seed sowing process.

[0029] The user pours the nutrient solution required for planting grass seeds into the nutrient solution tank 11 through the liquid inlet opening 111. The nutrient solution placed in the nutrient solution tank 11 flows into the infusion box 223 through the telescopic infusion pipe 112. The main controller 3 automatically starts the electric spray head 2233. The electric spray head 2233 sprays the nutrient solution into the soil holes through the infusion branch pipe 2232. The nutrient solution is mixed with the grass seeds, enabling the grass seeds to grow in a moist and nutrient-rich environment, improving the survival rate and growth rate of the grass seeds. The electric spray head 2233 belongs to the prior art, and its principle and structure will not be elaborated here.

[0030] The telescopic blanking pipe 2511 and the telescopic infusion pipe 112 are made of rubber hoses. When the first telescopic rod 21 and the second telescopic rod 23 extend, the telescopic infusion pipe 112 and the telescopic blanking pipe 2511 can undergo adaptive deformation, ensuring that when the positions of the first support block 22 and the second support block 24 change, the connection between the nutrient solution tank 11 and the infusion box 223 and the connection between the grass seed communicating pipe 222 and the connecting upper pipe 251 are always maintained.

[0031] After the grass seeds are planted, the main controller 3 first controls the first telescopic rod 21 to contract, and the first support block 22 rises, thereby driving the support vertical rod 26, the support cross rod 261 and the repair semi-cone head 27 to rise. The repair semi-cone head 27 leaves the ground. At this time, the second telescopic rod 23 rises, the fixed control rod 242 rises and the mating rod 2421 slides in the mating groove 2631. The mating rod 2421 drives the scissor rods 263 to close together, and the sliding sleeves 262 approach each other. The repair semi-cone heads 27 are recombined into a complete repair cone head. At the same time, the adjustment motor 243 drives the synchronous rotating rod 254 to rotate, so that the receiving groove 2531 is aligned with the connecting upper pipe 251 again. The grass seeds in the connecting upper pipe 251 fall into the receiving groove 2531 for use in the next round of planting process. The user holds the mobile handrail 13 and pushes the support platform 1 forward, so that the planting assembly 2 moves above another position of the desertified grassland that needs ecological restoration, and repeats the above operations to complete the next round of grass seed planting process. In this way, the automatic ecological restoration effect of the desertified grassland is achieved.

[0032] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention. The actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A desertified grassland ecological restoration device, comprising a support platform (1), characterized in that: The lower wall of the support platform (1) is movably provided with a planting assembly (2), the planting assembly (2) comprising a first telescopic rod (21), a first support block (22), a second telescopic rod (23), a second support block (24), a support sleeve (25) and a support vertical rod (26), the first telescopic rod (21) being symmetrically arranged at left and right edges of the lower wall of the support platform (1), the first support block (22) being connected between the lower output ends of the first telescopic rod (21), the second telescopic rod (23) being symmetrically arranged at left and right edges of the lower wall of the first support block (22), the second support block (24) being connected between the lower output ends of the second telescopic rod (23), a through opening (241) being penetrated through the middle position of the upper wall of the second support block (24), the support sleeve (25) being fixedly arranged in a horizontal array in the through opening (241), the support vertical rods (26) being respectively fixedly arranged at the four corners of the lower wall of the first support block (22), and support sleeves (25) being connected between the lower ends of the left and right opposite support vertical rods (26). A supporting cross bar (261), front and rear edges of the lower wall of the second supporting block (24) are respectively provided with fixed control rods (242) in pairs in a horizontal array, and sliding sleeves (262) are respectively provided in pairs in a horizontal array on the front and rear opposing supporting cross bars (261), and scissor rods (263) are respectively provided in rotation on the upper ends of the side walls of the sliding sleeves (262), and the scissor rods (263) provided on the pairs of sliding sleeves (262) are arranged to rotate crosswise with each other, and the upper ends of the scissor rods (263) are respectively provided to rotate crosswise with each other. The half side walls are respectively provided with matching grooves (2631); matching rods (2421) are respectively fixedly provided at the lower ends of the fixed control rods (242); the matching rods (2421) are respectively slidably arranged in the matching grooves (2631); a repair semi-conical head (27) is fixedly connected between the front and rear opposite sliding sleeves (262); when the matching rods (2421) are located at the uppermost end of the matching grooves (2631), the two repair semi-conical heads (27) are combined into a complete repair cone head.

2. The desertification grassland ecological restoration device according to claim 1 is characterized by: The support sleeves (25) are respectively arranged above the symmetrically arranged repair semi-conical heads (27); the upper end side walls of the support sleeves (25) are connected through an upper connecting tube (251); the lower end side walls of the support sleeves (25) are connected through a lower connecting tube (252); control disks (253) are respectively provided in the support sleeves (25) for coaxial rotation; a synchronous rotating rod (254) is rotatably provided in the through opening (241); the control disks (253) are respectively coaxially fixed on the synchronous rotating rod (254); an adjusting motor (243) is provided at the end of the second support block (24); and an output end of the adjusting motor (243) is connected to the end of the synchronous rotating rod (254).

3. The desertification grassland ecological restoration device according to claim 2 is characterized by: An accommodating groove (2531) is embedded in the side wall of the control disk (253), and the outer diameter of the accommodating groove (2531) is the same as the inner diameter of the connecting upper tube (251) and the connecting lower tube (252). When the control disk (253) rotates in the supporting sleeve (25), the accommodating groove (2531) is respectively arranged opposite to the connecting upper tube (251) and the connecting lower tube (252).

4. The desertification grassland ecological restoration device according to claim 3 is characterized by: Grass seed connecting tubes (222) are arranged in an array through the upper wall of the first supporting block (22) along the length direction of the first supporting block (22); the lower openings of the grass seed connecting tubes (222) and the connecting upper tubes (251) are arranged opposite to each other up and down; and a telescopic discharge tube (2511) is connected through the lower openings of the grass seed connecting tubes (222) and the connecting upper tubes (251).

5. The desertification grassland ecological restoration device according to claim 4 is characterized by: A grass seed storage box (221) is fixedly provided at the upper end of the grass seed connecting pipe (222), and the grass seed storage box (221) is connected to the grass seed connecting pipe (222).

6. The desertification grassland ecological restoration device according to claim 5 is characterized by: A nutrient solution tank (11) is fixedly provided on the upper wall of the support platform (1), and a telescopic infusion tube (112) is connected to the lower end of the nutrient solution tank (11), and the telescopic infusion tube (112) is arranged below the support platform (1). An infusion box (223) is fixedly provided on the side wall of the first support block (22), and the lower end of the telescopic infusion tube (112) is connected to the infusion box (223). An infusion inner tube (2231) is connected to the infusion box (223), and the telescopic infusion tube (112) is connected to the lower end of the infusion box (223). The contracted infusion tube (112) is connected to the infusion inner tube (2231); the lower wall of the infusion box (223) is connected to infusion branch tubes (2232) in an array along the length direction of the infusion box (223); the infusion branch tubes (2232) are respectively connected to the infusion inner tube (2231); electric spray heads (2233) are provided at the lower end openings of the infusion branch tubes (2232); the electric spray heads (2233) are respectively arranged opposite to the repair semi-conical heads (27) arranged in pairs.

7. The desertification grassland ecological restoration device according to claim 6 is characterized by: A main controller (3) is fixedly provided on the upper wall of the support platform (1), and a control panel (31) is fixedly provided on one side of the main controller (3).

8. The desertification grassland ecological restoration device according to claim 7 is characterized by: The upper end of the nutrient solution tank (11) is provided with a liquid inlet opening (111); legs (12) are fixedly provided at the four corners of the lower wall of the support platform (1); the lower ends of the legs (12) are respectively provided with moving wheels (121); one end of the support platform (1) is fixedly provided with a moving armrest (13); and the control panel (31) is arranged opposite to the moving armrest (13).

9. The desertification grassland ecological restoration device according to claim 8, characterized in that: The telescopic infusion tube (112) and the telescopic discharge tube (2511) are respectively made of rubber hoses.

10. The desertification grassland ecological restoration device according to claim 9, characterized in that: The first telescopic rod (21), the electric spray head (2233), the second telescopic rod (23), the regulating motor (243) and the control panel (31) are respectively electrically connected to the main controller (3).

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