Saline-alkali farmland organic matter lifting equipment

Abstract

The invention relates to the field of soil improvement, and particularly discloses organic matter lifting equipment for saline-alkali farmland. Comprising a walking unit, the walking unit comprises a frame and wheels, a guide unit is arranged at the rear end of the frame, the guide unit comprises a transverse sliding assembly and a vertical guide assembly, and the transverse sliding assembly comprises a sliding driving part, a transverse lead screw and a transverse sliding seat; the vertical guide assembly comprises a vertical sliding seat, a vertical driving piece, a vertical rod and a limiting piece; a winding unit, a winding unit and a discharging unit are further arranged on the frame, the winding unit comprises a rotation driving part and an inhaul cable winding roller, and an inhaul cable is wound on the inhaul cable winding roller; the winding unit comprises a supporting frame, a winding driving part, a mesh winding roller and a fertilizer storage box, a mesh is wound on the mesh winding roller, and an outlet is formed in the fertilizer storage box; the discharging unit comprises a material storage box, and a discharging opening is formed in the lower portion of the material storage box. The saline-alkali farmland organic matter lifting equipment solves the problem that fertilizer is prone to loss in the leaching process after being mixed with surface soil.

Description

Technical Field

[0001] The invention relates to the field of soil improvement, and in particular to a device for improving organic matter in saline-alkali farmland. Background Art

[0002] Saline-alkali farmland is a type of farmland where salt accumulates. It refers to land where the salt contained in the soil affects the normal growth of crops. In the early stages of saline-alkali farmland management, leaching the soil by building irrigation systems such as open ditches, concealed pipes or vertical shafts is an effective means of reducing soil salinity. However, in the process of leaching the soil, the water will take away the salt and nutrients in the soil, resulting in saline-alkali farmland being unfavorable for crop growth even if it is successfully managed due to poor soil.

[0003] The traditional method is to add fertilizer to the soil by using a soil renovation device with a soil and fertilizer mixing function as disclosed in patent number CN119631617A, the device includes: a walking mechanism; a power mechanism, which is arranged at the rear end of the walking mechanism and is used to provide driving power, a mixing mechanism, which is arranged at the upper part of the walking mechanism and is used to mix the soil and fertilizer and then discharge it; a digging mechanism, which is used to renovate the soil and transport the renovated soil into the mixing mechanism, and both sides of the digging mechanism are installed at the front end of the walking mechanism through a lifting assembly; a fertilizer conveying assembly, which is connected to the mixing mechanism and is used to convey fertilizer into the mixing mechanism.

[0004] The above equipment adds fertilizer to the soil when renovating the soil and mixes the fertilizer with the soil. However, the digging mechanism of the above equipment can only dig out the surface soil, so the fertilizer can only be added to the surface soil, and the fertilizer in the surface soil is easy to continue to lose, and the improvement effect is poor. Secondly, the above equipment can only mix fertilizer with the soil when there are no crops in the soil. When the fertilizer is lost or the fertility is insufficient, it is impossible to continue to add a large amount of fertilizer.

[0005] Although there is currently a trench excavation equipment with patent number CN221461312U, which includes excavation equipment, a drilling adjustment device, and a soil collecting component; the drilling adjustment device is equipped with a fixed plate, a servo motor is fixedly installed on the top of the fixed plate, a ball screw is fixedly installed on the bottom of the servo motor, and a ball nut compatible with it is movably installed on one end of the ball screw; the ball screw and the ball nut are driven by power to cooperate, and one side of the ball nut drives the lifting plate to move linearly synchronously, and the lifting plate drives the protective shell to move, and then, the driving torque motor rotates the first gear, and the first gear transmits the second gears on both sides, so that the second gear drives the drill bit to rotate to dig the ground, realizing the function of adjusting the height of the drilling soil, but the above-mentioned equipment can still only be used for the formation of trenches, and the fertilizer is directly buried in the trench, and there is still a problem of fertilizer loss during the elution process. Summary of the Invention

[0006] The present invention aims to provide a device for improving organic matter in saline-alkali farmland to solve the problem that fertilizers are easily lost during the leaching process after being mixed with the topsoil.

[0007] To achieve the above object, the present invention adopts the following technical solution: A device for improving organic matter in saline-alkali farmland, comprising a traveling unit. The traveling unit includes a vehicle frame and wheels. The wheels are arranged on the vehicle frame. A guiding unit is provided at the rear end of the vehicle frame. The guiding unit includes a lateral sliding assembly and a vertical guiding assembly. The lateral sliding assembly includes a sliding driving member, a lateral lead screw, and a lateral sliding seat. The lateral lead screw is horizontally arranged on the vehicle frame and is rotationally matched with the vehicle frame. The sliding driving member is connected to the lateral lead screw and is used to drive the lateral lead screw to rotate. The lateral sliding seat is slidably matched with the vehicle frame along the width direction of the vehicle frame. The lateral lead screw horizontally penetrates through the lateral sliding seat and forms a ball screw structure with the lateral sliding seat. The vertical guiding assembly includes a vertical sliding seat, a vertical driving member, a vertical rod, and a limiting member. The vertical driving member is arranged on the lateral sliding seat and is used to drive the vertical sliding seat to slide vertically. The upper end of the vertical rod is installed on the vertical sliding seat, and the limiting member is arranged at the lower end of the vertical rod. A winding unit, a winding unit, and a discharging unit are further provided on the vehicle frame. The winding unit includes a rotation driving member and a cable winding roller. The cable winding roller is rotationally matched with the vehicle frame. The rotation driving member is connected to the cable winding roller and is used to drive the cable winding roller to rotate. A cable is wound on the cable winding roller. The winding unit includes a support frame, a winding driving member, a mesh winding roller, and a fertilizer storage tank. The support frame is rotationally matched with the vehicle frame. The winding driving member is connected to the support frame and is used to drive the support frame to rotate. The mesh winding roller and the fertilizer storage tank are both eccentrically arranged on the support frame. A mesh is wound on the mesh winding roller. An outlet opposite to the mesh winding roller is provided on the fertilizer storage tank. The discharging unit includes a storage tank. An outlet is provided at the lower part of the storage tank. The connection position of the mesh and the cable is the discharging point. The outlet is located above the discharging point and is opposite to the discharging point.

[0008] The beneficial effects of this solution are as follows: 1. When the support frame in this solution rotates, the mesh rotates around the cable as the rotation center, so that the mesh is wound around the outer periphery of the cable. During this process, by placing fertilizers, biochar, different organic waste materials, and organic matters such as straw and green manure at the discharging point through the outlet, the mesh can be wound around the outer periphery of the cable while being wrapped around the outside of the organic matter, thereby fixing the organic matter to the cable. Compared with directly mixing it with the topsoil, the fertilizers, biochar, organic waste materials, etc. in this solution are tightly wrapped. During leaching, the mesh and plants play a protective role for the fertilizers, biochar, organic waste materials, etc. inside, so that they will not be lost in large quantities during leaching.

[0009] 2. After fertilizers, biochar, organic waste, etc. in this solution are wrapped inside plants and mesh sheets and landfilled into deep soil, they undergo natural fermentation and decomposition over a long period of time. After decomposition, the nutrients are more easily absorbed by crops. Moreover, the tight wrapping of the mesh sheet also enables the organic matter to decompose slowly, so that the organic substances therein are slowly released into the soil, providing nutrients for plants continuously. Secondly, heat is generated during the decomposition process, and the heat can increase the soil temperature, thus promoting the germination of plant seeds and effectively increasing the seed germination rate.

[0010] 3. After decomposition, the biochar, organic waste, and plants wrapped inside the mesh sheet degrade and form organic fertilizers. Since fertilizers, biochar, organic waste, etc. are wrapped inside the mesh sheet during landfilling, the organic fertilizers are also located inside the mesh sheet after composting. At this time, pulling the cable horizontally from the end of the cable can make the cable and the mesh sheet wrapped outside the cable slide horizontally relative to the soil, carrying the organic fertilizers into the surrounding soil and promoting the dispersion of the organic fertilizers.

[0011] 4. When landfilling long strips wrapped with fertilizers, biochar, organic waste, and plants, the sliding driving member drives the transverse sliding seat to reciprocate along the width direction of the side frame, while the vehicle frame moves forward at the same time. Therefore, the landfilled materials in this solution are distributed in the soil in an S shape. When pulling the end of the cable, the cable forms a fan-shaped passing area inside the soil, thereby increasing the diffusion range of the organic fertilizers.

[0012] 5. The fertilizer storage tank in this solution can scatter fertilizers to the discharge point after the organic matter falls to the discharge point. Compared with providing nutrients for plant growth through the decomposition of organic matter, the fertilizers can be directly absorbed by plants and can provide sufficient nutrients for plants at the stage when the decomposition is not completed. Secondly, the fertilizer storage tank in this solution is arranged on the support frame, and the rotation of the support frame can drive the fertilizer storage tank to rotate. When multiple fertilizers are placed in the fertilizer storage tank at the same time, the fertilizers can be continuously mixed, making the fertilizers discharged each time more uniform. Moreover, since the fertilizer storage tank can rotate, the fertilizers inside it are also in a continuous movement process. Therefore, when the fertilizers are granular, it can also prevent the fertilizers from blocking the outlet.

[0013] Further, two counter-rollers are rotatably connected to the transverse sliding seat. The two counter-rollers are symmetrically arranged and opposite to the vertical rod, and a transmission driving member is provided to drive the counter-rollers to rotate in opposite directions.

[0014] The beneficial effect of this solution is that the counter-rollers can automatically convey the long landfilled materials wrapped with fertilizers, biochar, organic waste, and plants to the tail of the vehicle frame, without manual traction, and the landfilling is more convenient.

[0015] Further, a guide channel is provided vertically at one end of the transverse sliding seat away from the counter-rollers, and the guide channel is opposite to the limiting member.

[0016] The beneficial effects of this solution are as follows: The guiding channel plays a role in guiding and limiting the landfilled materials.

[0017] Furthermore, a positioning unit is provided at the tail end of the transverse sliding seat. The positioning unit includes a pressing member, a positioning sleeve, and a plurality of positioning rods. The positioning sleeve is vertically arranged on the vehicle frame. The pressing member is located above the positioning sleeve and is coaxial with the positioning sleeve. The positioning rods are slidably engaged with the positioning sleeve.

[0018] The beneficial effects of this solution are as follows: When the transverse sliding seat slides along the width direction of the vehicle frame, the landfilled materials fall into the soil in an S shape. The pressing member in this solution can insert the positioning rods downward into the soil when the landfilled materials are opposite to the positioning sleeve, so that the landfilled materials are fixed in the soil. Therefore, when the transverse sliding seat slides to the other side of the side frame, the landfilled materials will not shift, further ensuring that the landfilled materials can be distributed in an S shape in the soil.

[0019] Secondly, the landfilled materials can also be fixed at different depths in the soil by the depth of the positioning rods inserted downward into the soil. And the lengths of the positioning rods exposed above the soil at different inserted depths are also different. Therefore, the landfilling depth of the landfilled materials at this position can be reversely determined by the length of the positioning rods outside the soil, and the most suitable landfilling depth can be determined in combination with the growth trend of the crops thereon.

[0020] Finally, the position of the landfilled materials can be judged by the positioning rods. During actual implementation, different types of organic waste can also be added to the mesh in stages. At this time, it is still possible to judge which organic waste is suitable for this kind of plant by the growth trend of the plants thereon, thereby improving the improvement effect on saline-alkali farmland.

[0021] Furthermore, a tip is provided at the bottom of the positioning rod.

[0022] The beneficial effects of this solution are as follows: The tip enables the positioning rod to be inserted into the soil more easily.

[0023] Furthermore, an earth-digging unit is provided at the front end of the vehicle frame. The earth-digging unit includes a column, a power member, a mounting seat, an adjusting driving member, and an adjusting screw rod. The adjusting screw rod is rotatably connected to the front end of the vehicle frame. The adjusting driving member is connected to the adjusting screw rod and is used to drive the adjusting screw rod to rotate. The adjusting screw rod horizontally penetrates through the mounting seat and forms a ball screw structure with the mounting seat. A rotating shaft is rotatably connected to the mounting seat. The column is detachably connected to the rotating shaft and the lower end of the column is lower than the vehicle frame. The power member is arranged on the mounting seat and is used to drive the rotating shaft to rotate; blades are arranged vertically on the column.

[0024] The beneficial effects of this solution are as follows: The column and the blades in this solution can dig a deeper trench, so as to facilitate placing the landfilled materials in deeper soil. And the adjusting driving member can move the column along the width direction of the vehicle frame to automatically form an S-shaped trench.

[0025] Furthermore, pull rings are fixed at both ends of the cable.

[0026] The beneficial effect of this solution is that the cable can be conveniently pulled through the pull ring, so that the decomposed organic fertilizer can be distributed in the soil through the cable and the mesh wrapped around the outside of the cable.

[0027] Furthermore, the cable includes several annular parts, and adjacent annular parts are buckled with each other and perpendicular to each other.

[0028] The beneficial effect of this solution is that the cross-section of the cable in this solution is larger, which is more conducive to driving the organic fertilizer, so as to better distribute the organic fertilizer in the soil.

[0029] Furthermore, there are two support frames. The two ends of the mesh winding roller are respectively connected to the two support frames, and a C-shaped sleeve is fixed between the two support frames. The sleeve is coaxial with the support frame and is located outside the mesh winding roller and the fertilizer storage box. There is a notch on the sleeve, the discharge port is opposite to the notch, and the lower end of the discharge port abuts against the outer wall of the sleeve and can be closed by the sleeve.

[0030] The beneficial effect of this solution is that the two support frames can better support the mesh winding roller and the mesh, and the sleeve sleeved on the outside can limit the organic waste such as straw falling from the storage box, so that during the process of the mesh winding, the organic fertilizer that has not been wound between the mesh and the cable in time will not fall on the vehicle frame and cause waste.

[0031] Furthermore, a baffle is fixed on the inner wall of the sleeve. The fertilizer storage box is located on one side of the notch close to the mesh winding roller, and the baffle is located on the side of the notch far from the mesh winding roller.

[0032] The beneficial effect of this solution is that the baffle further limits the falling organic waste. And when there is more organic waste falling in the previous time, resulting in a large angle of rotation of the mesh relative to the cable and there is still organic waste that has not been wound between the mesh and the cable, even when the notch of the sleeve rotates to the downward state, under the limiting effect of the baffle, the unwound organic waste will not fall out of the notch and cause waste. At the same time, when the baffle rotates to the upper part of the support frame, the baffle is in an inclined state, which can guide the unwound organic waste and prompt the organic waste to slide to the discharge point.

[0033] Secondly, since the baffle and the fertilizer storage box are located on both sides of the notch respectively, the baffle and the fertilizer storage box can also guide the falling organic waste, further ensuring that the organic waste accurately falls at the discharge point position, so as to prompt the organic waste to be wound by the mesh and wrapped around the outer periphery of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a perspective view of an embodiment of the present invention; Figure 2 For Figure 1 Right-side stereogram of the middle guiding unit; Figure 3 Schematic diagram of the state when the cable under the soil in the present invention is pulled; Figure 4 For Figure 1 Right view of the winding unit in; Figure 5 For Figure 4 Schematic diagram of the state after the support frame in is rotated counterclockwise by 60°; Figure 6 For Figure 5 Schematic diagram of the state after the support frame in is rotated counterclockwise by 60°; Figure 7 For Figure 6 Schematic diagram of the state after the support frame in is rotated counterclockwise by 60°; Figure 8 For Figure 7 Schematic diagram of the state after the support frame in is rotated counterclockwise by 120°. Specific embodiments

[0035] The following is a further detailed description through specific embodiments: The reference numerals in the accompanying drawings of the specification include: vehicle frame 1, vertical column 11, vertical frame 12, guide rail 13, sliding drive member 14, transverse lead screw 15, limit plate 2, cable winding roller 21, support frame 3, central hole 31, mesh winding roller 32, fertilizer storage box 33, baffle 34, mesh 35, storage box 4, feed inlet 41, transverse sliding seat 5, pair of rollers 51, guide channel 52, vertical drive member 53, fixed frame 54, pressing member 55, vertical rod 6, limiting member 61, guide rod 62, landfill 7, diffusion area 71, positioning rod 8, positioning sleeve 81, sleeve 9, gear ring 91.

[0036] Embodiment The embodiment is basically as Figure 1 shown. A device for improving organic matter in saline-alkali farmland includes a traveling unit. The traveling unit includes a vehicle frame 1 and wheels (not shown in the figure). The wheels are arranged on the vehicle frame 1. The left end of the vehicle frame 1 is the front end, and the right end is the rear end. A soil excavation unit is provided at the front end of the vehicle frame 1. The soil excavation unit includes a vertical column 11, a power member, a mounting seat, an adjustment drive member, and an adjustment lead screw. The adjustment lead screw is rotatably connected to the front end of the vehicle frame 1. The adjustment drive member is connected to the adjustment lead screw and is used to drive the adjustment lead screw to rotate. The adjustment lead screw horizontally penetrates through the mounting seat and forms a ball screw structure with the mounting seat. A rotating shaft is rotatably connected to the mounting seat. The vertical column 11 is detachably connected to the rotating shaft, and the lower end of the vertical column 11 is lower than the vehicle frame 1. The power member is arranged on the mounting seat and is used to drive the rotating shaft to rotate; blades are arranged vertically on the vertical column 11 A guiding unit is provided at the right end of the vehicle frame 1. Referring to Figure 2As shown, the guiding unit includes a lateral sliding assembly and a vertical guiding assembly. The lateral sliding assembly includes a sliding driving member 14, a lateral lead screw, and a lateral sliding seat 5. The lateral lead screw is horizontally arranged on the vehicle frame 1 and is rotationally engaged with the vehicle frame 1. The sliding driving member 14 is connected to the lateral lead screw and is used to drive the lateral lead screw to rotate. The lateral sliding seat 5 is slidably engaged with the vehicle frame 1 along the width direction of the vehicle frame 1. The lateral lead screw horizontally penetrates the lateral sliding seat 5 and forms a ball screw structure with the lateral sliding seat 5.

[0037] The vertical guiding assembly includes a vertical sliding seat, a vertical driving member 53, a vertical rod 6, and a limiting member 61. The vertical driving member 53 is arranged on the lateral sliding seat 5 and is used to drive the vertical sliding seat to slide vertically. The upper end of the vertical rod 6 is installed on the vertical sliding seat, and the limiting member 61 is arranged at the lower end of the vertical rod 6. A guiding channel 52 is vertically arranged at one end of the lateral sliding seat 5 away from the counter-rollers 51, and the guiding channel 52 is opposite to the limiting member 61.

[0038] Combined with Figure 1 As shown, two counter-rollers 51 are rotatably connected to the left end of the lateral sliding seat 5. The two counter-rollers 51 are symmetrically arranged and are opposite to the vertical rod 6, and a transmission driving member is provided to drive the counter-rollers 51 to rotate in opposite directions. Combined with Figure 2 As shown, a positioning unit is arranged at the tail end of the lateral sliding seat 5. The positioning unit includes a pressing member 55, a positioning sleeve 81, and a plurality of positioning rods 8. The positioning sleeve 81 is vertically arranged on the vehicle frame 1. The pressing member 55 is located above the positioning sleeve 81 and is coaxial with the positioning sleeve 81. The positioning rods 8 are slidably engaged with the positioning sleeve 81, and the bottom of the positioning rod 8 is provided with a tip.

[0039] A winding unit, a winding unit, and a discharging unit are also arranged on the vehicle frame 1. The winding unit includes a rotational driving member and a cable winding roller 21. Two groups of vertical frames 12 are installed on the vehicle frame 1 by bolts. Each group of vertical frames 12 includes two relatively arranged frames. Both ends of the cable winding roller 21 are rotationally engaged with one of the vertical frames 12 through bearings. A cable is wound on the cable winding roller 21. Limiting plates 22 are installed at both ends of the cable winding roller 21 to limit the wound cable. The output shaft of the rotational driving member is connected to the cable winding roller 21 through a coupling and is used to drive the cable winding roller 21 to rotate.

[0040] The winding unit is located on one side of the winding unit near the rear end of the vehicle frame 1. Combined with Figures 4 to 8, specifically including a winding driving member, a mesh winding roller 32, a fertilizer storage tank 33, and two support frames 3. The two support frames 3 are respectively rotatably engaged with the two frames of another set of upright frames 12. Bearings are also provided between the support frames 3 and the frames to ensure that the support frames 3 can rotate relative to the frames. The winding driving member is installed on the vehicle frame 1. In this embodiment, both the winding driving member and the rotation driving member are motors. A ring-shaped gear 91 is welded to one of the support frames 3. The output shaft of the winding driving member is connected by a coupling to a gear that meshes with the gear 91, for driving the support frame 3 to rotate counterclockwise.

[0041] A C-shaped sleeve 9 is installed between the two support frames 3 by bolts. A notch is formed on the sleeve 9. An installation space is formed between the sleeve 9 and the two support frames 3. Both the mesh winding roller 32 and the fertilizer storage tank 33 are located in the installation space. A central hole 31 is provided at the center position of the support frame 3. The mesh winding roller 32 is eccentrically arranged and its two ends respectively penetrate through the two support frames 3 and can rotate relative to the support frames 3. A mesh 35 is wound on the mesh winding roller 32. In actual implementation, a coil spring can also be provided between the mesh winding roller 32 and the support frame 3, so that the wound mesh 35 will drive the mesh winding roller 32 to rotate only after being subjected to a certain pulling force, and the mesh 35 is relaxed. The free end of the mesh 35 is wound around the cable and fixed to the cable. The position where the mesh 35 contacts the cable is the discharge point, and the notch is opposite to the discharge point.

[0042] The fertilizer storage tank 33 is provided with an inlet and an outlet. A sealing plate is installed at the inlet by screws. The outlet is located at one end of the fertilizer storage tank 33 close to the central hole 31; the fertilizer storage tank 33 is located above the mesh winding roller 32 and is connected to the two support frames 3 by bolts, so that after the fertilizer storage tank 33 rotates to the upper part of the support frame 3, the fertilizer falls out from the outlet under the action of gravity. In this embodiment, the fertilizer storage tank 33 is located on the right side of the notch, and a baffle 34 is also provided on the left side of the notch. The baffle 34 extends along the radial direction of the sleeve 9.

[0043] The discharging unit includes a storage tank 4. The bottom of the storage tank 4 is provided with a discharge port. The discharge port is located above the notch, and after the sleeve 9 rotates, the discharge port abuts against the outer wall of the sleeve 9, thereby realizing the automatic closing of the discharge port.

[0044] The specific implementation process is as follows: In this embodiment, the equipment travels to the left, and the power member drives the upright post 11 to rotate to excavate the soil. When the vehicle frame 1 travels, the adjustment driving member drives the mounting seat to reciprocate along the width direction of the vehicle frame 1, thereby controlling the upright post 11 to reciprocate along the width direction of the vehicle frame 1 to excavate an S-shaped trench. In actual implementation, the height of the upright post 11 can be reasonably selected according to the local soil conditions, so as to control the depth of the trench and ensure that the excavation of the trench does not penetrate into the groundwater layer.

[0045] Meanwhile, the sliding driving member 14 also drives the transverse sliding seat 5 to reciprocate along the width direction of the vehicle frame 1. In actual implementation, the sliding speeds of both the transverse sliding seat 5 and the mounting seat are proportional to the driving speed of the vehicle frame 1, ensuring that the vertical rod 6 can slide along the S-shaped groove formed by the upright column 11.

[0046] Initially, the free end of the cable is pulled forward and extends towards the rear end of the vehicle frame 1, passing through the central hole 31, the pair of rollers 51, the guiding channel 52 in sequence and passing through the limiting member 61, and finally extending to the rear of the vehicle frame 1. Pull the end of the cable and pass through the mesh winding roller 3, the pair of rollers 51, the guiding channel 52 in sequence and pass through the limiting member 61. Straw and other plants cut into pieces, as well as composting agents, biochar, and organic waste, are conveyed to the mesh 31 through the discharge port below the storage tank 4. At the same time, control the support frame 3 to rotate, and the mesh 35 rotates around the cable and winds around the cable. At this time, the biochar, fertilizer, and organic waste are wrapped inside the mesh 31. The presence of straw and other plant pieces can block the holes on the mesh 31 and wrap the biochar, fertilizer, and organic waste, further preventing the biochar, fertilizer, and organic waste from being washed away under the action of water flow. The mesh 31 wraps the cable, biochar, fertilizer, and organic waste to form a landfill 7. The landfill 7 falls into the ditch, and finally, backfilling the soil can achieve landfill.

[0047] Before the transverse sliding seat 5 slides to the left and right ends of the vehicle frame 1, first place the positioning rod 8 with its tip facing downwards into the positioning sleeve 81. When the sliding seat slides to the left and right ends of the vehicle frame 1, control the push rod of the pressing member 55 to slide downwards, penetrate the positioning rod 8 through the landfill 7 and insert it into the soil to position the landfill 7.

[0048] After landfill, the soil can continue to be leached or crops can be planted in the soil. The straw, biochar, fertilizer, and organic waste gradually decompose in the soil. After decomposition, pull the cable distributed in an S shape horizontally from the outside of the soil. As shown in Figure 3 , the cable and the mesh 31 wrap the obtained organic fertilizer and disperse it horizontally in the surrounding soil. When pulling out the cable, the end of the cable can be connected to the cable winding roller 21, and the power of the rotating driving member is used to automatically recycle the cable. In actual implementation, an electric motor with an appropriate power can also be selected according to the length of the cable to be recycled and the generally required landfill depth.

[0049] In actual implementation, the excavation depth of the trench and the landfill depth of the landfill 7 are determined according to the geology of the use site: during the decomposition period of the landfill 7, if there is no need to plant crops on saline-alkali farmland, the landfill depth only needs to be shallower than the groundwater or the underground rock formation.

[0050] For saline-alkali farmland where crops can already be planted, when planting crops, it is necessary to estimate the root depth of the crops. When removing the cable, the landfill depth needs to be deeper than the root distribution depth of the crops and shallower than the groundwater or underground rock formation. Taking a saline-alkali farmland in a certain place as an example, the groundwater is distributed more than 60 cm below the soil, and the depth where the roots of a certain crop are located after full colonization is 25 - 30 cm. Then the landfill depth of the landfill 7 in the present invention is 40 - 50 cm.

[0051] Secondly, in actual implementation, in order to improve the yield rate of saline-alkali farmland, it is usually necessary to plant different crops in different seasons. At this time, crops with relatively shallow roots can be planted in the first crop. At this time, the landfill 7 is deeper than the roots of the first crop. In the second crop, crops with relatively deeper roots are planted. Before the second crop is colonized and the roots extend to the position where the landfill 7 is located, the cable is pulled out, so that the organic fertilizer obtained by composting can be fully absorbed by the second crop. At this time, the second crop can be planted without a large amount of turning of the saline-alkali farmland, and at the same time, it is ensured that the second crop has sufficient nutrients. The heat and a small amount of nutrients during the composting process can also provide nutritional support for the maturity of the first crop.

[0052] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An organic matter improvement device for saline-alkali farmland, comprising a walking unit, the walking unit including a vehicle frame and wheels, the wheels being provided on the vehicle frame, characterized in that: A guiding unit is provided at the rear end of the vehicle frame. The guiding unit includes a lateral sliding assembly and a vertical guiding assembly. The lateral sliding assembly includes a sliding driving member, a lateral lead screw, and a lateral sliding seat. The lateral lead screw is horizontally arranged on the vehicle frame and rotatably cooperates with the vehicle frame. The sliding driving member is connected to the lateral lead screw and is used to drive the lateral lead screw to rotate. The lateral sliding seat slides along the width direction of the vehicle frame and cooperates with the vehicle frame. The lateral lead screw horizontally penetrates the lateral sliding seat and forms a ball screw structure with the lateral sliding seat. The vertical guiding assembly includes a vertical sliding seat, a vertical driving member, a vertical rod, and a limiting member. The vertical driving member is arranged on the lateral sliding seat and is used to drive the vertical sliding seat to slide vertically. The upper end of the vertical rod is installed on the vertical sliding seat, and the limiting member is arranged at the lower end of the vertical rod. A winding unit, a winding unit, and a discharging unit are also provided on the vehicle frame. The winding unit includes a rotating driving member and a cable winding roller. The cable winding roller rotatably cooperates with the vehicle frame. The rotating driving member is connected to the cable winding roller and is used to drive the cable winding roller to rotate. The cable winding roller winds a cable. The winding unit includes a support frame, a winding driving member, a mesh winding roller, and a fertilizer storage tank. The support frame rotatably cooperates with the vehicle frame. The winding driving member is connected to the support frame and is used to drive the support frame to rotate. The mesh winding roller and the fertilizer storage tank are both eccentrically arranged on the support frame. The mesh winding roller winds a mesh, and the fertilizer storage tank is provided with an outlet opposite to the mesh winding roller. The discharging unit includes a storage tank. The lower part of the storage tank is provided with a discharging port. The connection position of the mesh and the cable is the discharging point. The discharging port is located above the discharging point and is opposite to the discharging point.

2. The organic matter improvement device for saline-alkali farmland according to claim 1, characterized in that: Two counter-rollers are rotatably connected to the lateral sliding seat. The two counter-rollers are symmetrically arranged and opposite to the vertical rod, and a conveying driving member is provided to drive the counter-rollers to rotate in opposite directions.

3. The organic matter improving device for saline-alkali farmland according to claim 2, characterized in that: A guiding channel is vertically arranged at one end of the lateral sliding seat away from the counter-rollers, and the guiding channel is opposite to the limiting member.

4. The organic matter improvement device for saline-alkali farmland according to claim 1, characterized in that: A positioning unit is provided at the tail end of the lateral sliding seat. The positioning unit includes a pressing member, a positioning sleeve, and a plurality of positioning rods. The positioning sleeve is vertically arranged on the vehicle frame. The pressing member is located above the positioning sleeve and is coaxial with the positioning sleeve. The positioning rods slidably cooperate with the positioning sleeve.

5. The organic matter improvement device for saline-alkali farmland according to claim 4, characterized in that: The bottom of the positioning rod is provided with a tip.

6. The organic matter improvement equipment for saline-alkali farmland according to claim 5, characterized in that: An earth-digging unit is provided at the front end of the vehicle frame. The earth-digging unit includes a column, a power member, a mounting seat, an adjusting driving member, and an adjusting lead screw. The adjusting lead screw is rotatably connected to the front end of the vehicle frame. The adjusting driving member is connected to the adjusting lead screw and is used to drive the adjusting lead screw to rotate. The adjusting lead screw horizontally penetrates the mounting seat and forms a ball screw structure with the mounting seat. A rotating shaft is rotatably connected to the mounting seat. The column is detachably connected to the rotating shaft and the lower end of the column is lower than the vehicle frame. The power member is arranged on the mounting seat and is used to drive the rotating shaft to rotate. Blades are vertically arranged on the column.

7. The organic matter enhancing device for saline-alkali farmland according to claim 1, characterized in that: Pulling rings are fixed to both ends of the cable.

8. An organic matter enhancing device for saline-alkali farmland according to claim 7, characterized in that: The cable includes a number of annular portions. Adjacent annular portions are buckled with each other, and adjacent annular portions are perpendicular to each other.

9. The organic matter enhancing device for saline-alkali farmland according to claim 1, characterized in that: There are two support frames. The two ends of the mesh winding roller are respectively connected to the two support frames. A C-shaped sleeve is fixed between the two support frames. The sleeve is coaxial with the support frame and is located outside the mesh winding roller and the fertilizer storage tank. The sleeve is provided with a notch. The discharging port is opposite to the notch, and the lower end of the discharging port abuts against the outer wall of the sleeve and can be closed by the sleeve.

10. The organic matter improvement device for saline-alkali farmland according to claim 9, characterized in that: A baffle is fixed to the inner wall of the sleeve. The fertilizer storage box is located on the side of the notch close to the mesh winding roller, and the baffle is located on the side of the notch away from the mesh winding roller.

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