A multifunctional integrated machine for biological method of saline-alkali soil improvement

Abstract

A multifunctional integrated machine for biological saline-alkali soil improvement, comprising: a frame; a deep loosening mechanism comprising a curved bent shovel handle, a mounting portion, a side wing sliding cutter, an organic fertilizer discharge pipe and an amendment discharge pipe, the top end of the curved bent shovel handle being connected to the frame through the mounting portion; a multi-curved surface chisel type shovel tip is arranged at the front end of the curved bent shovel handle, and the side wing sliding cutter is installed on one side or both sides of the middle part of the curved bent shovel handle; a depth limiting mechanism is installed on the frame and controls the deep loosening depth by adjusting the position in the vertical direction of the frame; a fertilization mechanism is arranged behind the deep loosening mechanism corresponding to the frame; and a soil crushing mechanism is installed on the frame and located behind the fertilization mechanism, used for pressing and inserting into the cut soil to achieve soil crushing and land preparation, the soil crushing mechanism comprising a connecting frame, a roller and a cutter tooth, the roller being hinged to the connecting frame, and the connecting frame being connected to the frame; the cutter tooth is arranged on the roller in an Archimedes spiral line and performs a trochoidal motion with the movement of the roller.

Description

Technical Field

[0001] This utility model relates to agricultural machinery for deep soil loosening and technology for saline-alkali land management, and in particular to a multi-functional integrated machine for biological saline-alkali soil improvement. Background Technology

[0002] Comprehensive utilization of saline-alkali land is of great significance to ensuring food security. Existing deep tillage machinery often suffers from insufficient power, component breakage, and poor tillage effect when applied to compacted soil in saline-alkali areas. Furthermore, these machines have limited functionality and lack integrated operation capabilities. Subsequent application of solid organic fertilizers or liquid soil conditioners after deep tillage leads to repeated soil compaction, indirectly reducing the effectiveness of deep tillage. Currently, there is a lack of integrated equipment specifically designed for saline-alkali land improvement, combining deep tillage, cultivation, and fertilizer application. High-performance equipment is lacking in key aspects of saline-alkali land improvement and production, resulting in poor overall system integration and low production efficiency. Therefore, there is an urgent need for integrated machinery combining deep tillage, cultivation, and fertilizer application. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a multi-functional integrated machine for biological saline-alkali soil improvement, addressing the above-mentioned deficiencies of the prior art.

[0004] To achieve the above objectives, this utility model provides a multi-functional integrated machine for biological saline-alkali soil improvement, comprising:

[0005] frame;

[0006] The deep tillage mechanism includes a curved shovel handle, a mounting part, a side-wing sliding cutter, an organic fertilizer outlet pipe, and an amendment outlet pipe. The top of the curved shovel handle is connected to the frame through the mounting part. The front end of the curved shovel handle is provided with a multi-curved chisel-type shovel tip. The side-wing sliding cutter is installed on one or both sides of the middle part of the curved shovel handle.

[0007] A depth limiting mechanism is installed on the frame and controls the deep loosening depth by adjusting its position perpendicular to the frame.

[0008] The fertilization mechanism, corresponding to the deep tillage mechanism, is located behind the frame; and

[0009] The soil-crushing mechanism is hinged to the frame and located behind the fertilizing mechanism. The soil-crushing mechanism includes a connecting frame, a roller, and cutting teeth. The roller is hinged to the connecting frame, and the connecting frame is connected to the frame. The cutting teeth are arranged on the roller in an Archimedean spiral shape and move in a cocycloid motion with the movement of the roller.

[0010] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a soil crushing mechanism that further comprises a soil crushing limiting mechanism, including a limiting seat and a limiting slider connected to each other. The limiting seat is installed at the tail end of the frame, and the limiting slider is installed on the connecting frame. The soil penetration depth of the soil crushing mechanism is controlled by adjusting the relative position of the limiting slider and the limiting seat.

[0011] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a deep tillage mechanism that further comprises an expansion baffle installed on the side wall of the curved shovel handle and located above the side wing sliding cutter. The expansion baffle encloses a fertilizer drop space.

[0012] The aforementioned multifunctional integrated machine for biological saline-alkali soil improvement includes a fertilization mechanism comprising a fertilizer tank, reciprocating spiral blades, a rotating shaft, a fertilizer guide pipe, and an organic fertilizer outlet pipe. The rotating shaft is installed inside the fertilizer tank, and the reciprocating spiral blades are respectively mounted on the rotating shaft corresponding to the fertilizer guide pipes. The rotating shaft is connected to the power output unit of the traction machine via a power shaft mounted on the frame, driving the reciprocating spiral blades to rotate. The fertilizer guide pipe is installed at the bottom of the fertilizer tank, and the organic fertilizer outlet pipe is connected to the fertilizer guide pipe and positioned in the fertilizer drop space behind the curved shovel handle.

[0013] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a fertilizer application unit comprising an ammonium amendment tank, a pump station, a delivery pipe, an ammonium amendment discharge pipe, a nozzle, and a battery. The ammonium amendment tank is located behind the fertilizer tank. The pump station is connected to the ammonium amendment tank, the battery, and the delivery pipe. The delivery pipe is connected to the ammonium amendment discharge pipe. The nozzle is installed at the outlet of the ammonium amendment discharge pipe. The ammonium amendment discharge pipe is arranged parallel to the organic fertilizer discharge pipe within the fertilizer drop space behind the curved shovel handle.

[0014] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement has the bottom ends of the organic fertilizer outlet pipe and the soil conditioner outlet pipe respectively offset from each other with a 45° bevel, and the installation direction of the nozzle corresponds to the bevel at the bottom end of the organic fertilizer outlet pipe.

[0015] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a frame comprising a front crossbeam, a rear crossbeam, and a three-point suspension frame. The front crossbeam is connected to the three-point suspension frame, the rear crossbeam is connected to the front crossbeam and is arranged parallel to the rear of the front crossbeam, and the three-point suspension frame is connected to a traction machine.

[0016] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a depth-limiting fixing frame installed on both sides of the front crossbeam and arranged symmetrically with the center of the front crossbeam as the center of symmetry.

[0017] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes multiple deep tillage mechanisms installed on the front and rear crossbeams respectively. The mounting part includes a limiting support block and a U-shaped clamp. The top of the curved shovel handle is bolted to the limiting support block. The limiting support block is connected to the front or rear crossbeam via the U-shaped clamp, and the spacing of the deep tillage mechanisms is adjusted via the U-shaped clamp.

[0018] The aforementioned multi-functional integrated machine for biological saline-alkali soil improvement includes a double-headed multi-curved chisel tip installed at the bottom front end of the curved shovel handle, with the side-wing sliding cutters symmetrically installed on both sides of the curved shovel handle.

[0019] The technical advantages of this utility model are as follows:

[0020] This utility model addresses the problems of lack of high-performance equipment, poor full-process support, and low production efficiency in key links of saline-alkali land transformation and production. It provides a method that integrates deep loosening, fertilization, spraying, and land preparation. By combining deep loosening with the mixed application of solid-liquid soil conditioners, it breaks up the plow pan in saline-alkali land, reduces soil compaction, improves soil fertility, and solves problems such as the construction of fertile topsoil, stratified fertilization, and soil quality improvement in saline-alkali land.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the frame structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of a deep loosening mechanism according to an embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of a deep loosening mechanism according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a depth-limiting mechanism according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of a soil-breaking mechanism according to an embodiment of the present invention;

[0028] Figure 7 This is a diagram showing the arrangement of the blade teeth on a roller according to an embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the fertilization mechanism structure according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of solid organic fertilizer discharge according to an embodiment of the present invention.

[0031] Among them, the attached figures are labeled

[0032] 1 rack

[0033] 11 Depth-limited fixing frame

[0034] 12 reinforcing ribs

[0035] 13 front crossbeams

[0036] 14 rear crossbeam

[0037] 15 Three-point suspension bracket

[0038] 2 Deep Pine Institution

[0039] 21 Curved Shovel Handle

[0040] 22 shovel tip

[0041] 23 Side-wing sliding cutter

[0042] 24 expansion baffles

[0043] 25 Installation Department

[0044] 251 Limiting Support Block

[0045] 252U type clamp

[0046] 3 institutions with limited depth

[0047] 31 depth-limited wheels

[0048] 32 Depth Limit Adjustment Frame

[0049] 33 rack connection block

[0050] 34 Adjustment handle

[0051] 4 Fertilizer application organizations

[0052] 41 Fertilizer Application Department

[0053] 411 Fertilizer Box

[0054] 412 Reverse Helical Blades

[0055] 413 rotating shaft

[0056] 414 fertilizer delivery tube

[0057] 415 Organic Fertilizer Discharge Pipe

[0058] 42 Application Department

[0059] 421 Improver Kit

[0060] 422 Pumping Station

[0061] 423 drug delivery tube

[0062] 424 Modifier Discharge Pipe

[0063] 425 nozzle

[0064] 426 battery

[0065] 5. Soil breaking mechanism

[0066] 51 Connector

[0067] 52 rollers

[0068] 53 cutting teeth

[0069] 54 Soil-breaking limiting mechanism

[0070] 6 drive shafts Detailed Implementation

[0071] The structural and working principles of this utility model will be described in detail below with reference to the accompanying drawings:

[0072] See Figure 1 , Figure 1This is a schematic diagram of the structure of an embodiment of the present invention. The multi-functional integrated machine for biological saline-alkali soil improvement of the present invention includes: a frame 1; a deep tillage mechanism 2, including a curved shovel handle 21, a mounting part 25, a side-wing sliding cutter 23, an organic fertilizer outlet pipe 415, and an amendment outlet pipe 424. The top end of the curved shovel handle 21 is connected to the frame 1 through the mounting part 25; a shovel tip 22 is provided at the front end of the curved shovel handle 21; the side-wing sliding cutter 23 is installed on one or both sides of the middle part of the curved shovel handle 21; the shovel tip 22 is preferably a double-headed multi-curved chisel-type shovel tip 22, installed at the bottom of the front end of the curved shovel handle 21; preferably, the side-wing sliding cutter 23 is symmetrically installed on both sides of the curved shovel handle 21; and a depth limiting mechanism 3, installed on the frame 1, and adjusted to be perpendicular to the frame 1. The vertical position controls the deep loosening depth; the fertilization mechanism 4, corresponding to the deep loosening mechanism 2, is located behind the frame 1. It sprays liquid soil conditioner through a pump station 422 and applies solid organic fertilizer evenly to a depth of 100mm-150mm below the soil surface through a fertilizer applicator, achieving the goal of mixing and deep application of solid and liquid soil conditioner; and the soil-crushing mechanism 5, hinged to the frame 1 and located behind the fertilization mechanism 4, is used to compact and cut the soil to achieve soil crushing and land preparation. The soil-crushing mechanism 5 includes a connecting frame 51, a roller 52, and cutting teeth 53. The roller 52 is hinged to the connecting frame 51, and the connecting frame 51 is connected to the frame 1, allowing for unobstructed rotation; the cutting teeth 53 are arranged in an Archimedean spiral on the roller 52 and undergo cocycloidal motion with the movement of the roller 52. Preferably, the cutting teeth 53 are fixed to the roller 52 and arranged in an Archimedean spiral on the roller 52, with four cutting teeth 53 evenly distributed on each circumference.

[0073] See Figure 2 , Figure 2 This is a schematic diagram of the frame 1 according to an embodiment of the present invention. The frame 1 in this embodiment includes a front crossbeam 13, a rear crossbeam 14, and a three-point suspension frame 15. The front crossbeam 13 is connected to the three-point suspension frame 15, and a reinforcing rib 12 is provided between the front crossbeam 13 and the three-point suspension frame 15. The rear crossbeam 14 is connected to the front crossbeam 13 via left and right longitudinal beams and is arranged parallel to the rear of the front crossbeam 13. The three-point suspension frame 15 is connected to the traction machine. The frame 1 also includes a depth-limiting fixing frame 11, installed on both sides of the front crossbeam 13, and arranged symmetrically with the center of the front crossbeam 13 as the center of symmetry.

[0074] See Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the deep loosening mechanism 2 according to an embodiment of the present invention. Figure 4This is a cross-sectional view of a deep tillage mechanism 2 according to an embodiment of the present invention. The deep tillage mechanism 2 in this embodiment also includes an expansion baffle 24, installed on the side wall of the curved shovel handle 21 and located above the side-wing sliding cutter 23. The expansion baffle 24 encloses a fertilizer drop space. The components of the deep tillage mechanism 2 are fixedly connected at different positions and heights. The curved shovel handle 21 is bolted to a limiting support block 251, which is connected to the front crossbeam 13 and rear crossbeam 14 of the frame 1 via two U-shaped clamps 252. Therefore, the spacing between each deep tillage mechanism 2 is adjustable. During operation, the deep tillage mechanism 2 penetrates the soil to a certain depth. The double-headed multi-curved chisel-shaped shovel tip 22, the curved shovel handle 21, and the side-wing sliding cutter 23 cut the soil vertically and horizontally, breaking up the soil compaction layer and the plow pan. After the expansion baffle 24 is fixed, the organic fertilizer outlet pipe 415 and the soil conditioner outlet pipe 424 are connected. During the forward movement, the expansion baffle 24 blocks the backflow of disturbed soil and forms a certain space for fertilizer to fall, so that the organic fertilizer and liquid soil conditioner in the organic fertilizer outlet pipe 415 and the soil conditioner outlet pipe 424 can fall smoothly.

[0075] In this embodiment, multiple deep loosening mechanisms 2 are respectively installed on the front crossbeam 13 and the rear crossbeam 14. The mounting part 25 includes a limiting support block 251 and a U-shaped clamp 252. The top end of the curved shovel handle 21 is bolted to the limiting support block 251. The limiting support block 251 is connected to the front crossbeam 13 or the rear crossbeam 14 through the U-shaped clamp 252, and the spacing of the deep loosening mechanisms 2 is adjusted through the U-shaped clamp 252. The first and third deep loosening units are located on the front crossbeam 13, and the second and fourth deep loosening units are located on the rear crossbeam 14. The position of each deep loosening unit can be adjusted on the crossbeam. The horizontal distance between the first and second deep loosening units is 800mm, and the horizontal distance between the first and third deep loosening units (the horizontal distance between the second and fourth deep loosening units) is 1600mm.

[0076] See Figure 5 , Figure 5 This is a schematic diagram of the depth limiting mechanism 3 according to an embodiment of the present invention. The depth limiting mechanism 3 includes a depth limiting wheel 31, a depth limiting adjustment frame 32, a frame connecting block 33, and an adjustment handle 34. The depth limiting mechanism 3 is used to prevent the deep loosening mechanism 2 from penetrating too deeply into the soil during operation. The adjustment handle 34 adjusts the working depth by adjusting the vertical position of the depth limiting adjustment frame 32 on the frame 1.

[0077] See Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the soil-breaking mechanism 5 according to an embodiment of the present invention. Figure 7This is a diagram showing the arrangement of the cutting teeth 53 on the roller 52 according to an embodiment of the present invention. The soil-crushing mechanism 5 of this embodiment also includes a soil-crushing limiting mechanism 54, installed between the connecting frame 51 and the machine frame 1. It includes a limiting seat and a limiting slider connected to each other. The limiting seat is installed at the tail end of the machine frame 1, and the limiting slider is installed on the connecting frame 51. The soil-penetrating depth of the soil-crushing mechanism 5 is controlled by adjusting the relative position of the limiting slider and the limiting seat. During operation, the cutting teeth 53 insert into the soil. Under the traction of the machine frame 1, the roller 52 moves forward in a translational motion and also moves circumferentially under the action of soil resistance. The cutting teeth 53 on the roller undergo a cocycloidal motion, continuously chopping the soil.

[0078] See Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the fertilization mechanism 4 according to an embodiment of the present invention. Figure 9 This is a schematic diagram of solid organic fertilizer discharge according to an embodiment of the present invention. The fertilization mechanism 4 of this embodiment includes a fertilization section 41, which includes a fertilizer tank 411, forward and reverse spiral blades 412, a rotating shaft 413, a fertilizer guide pipe 414, and an organic fertilizer discharge pipe 415. The rotating shaft 413 is installed inside the fertilizer tank 411. The forward and reverse spiral blades 412 are respectively installed on the rotating shaft 413 corresponding to the fertilizer guide pipes 414, preferably welded to the rotating shaft 413. A set of forward and reverse spiral blades is installed on both sides of the axis of each fertilizer guide pipe 414. 412, the rotating shaft 413 is connected to the power output unit of the tractor via the power shaft 6 mounted on the frame 1, driving the positive and negative spiral blades 412 to rotate and push the fertilizer to the inlet of the fertilizer guide pipe 414; the power shaft 6 is connected to the universal joint of the tractor to transmit power; the fertilizer guide pipe 414 is installed at the bottom of the fertilizer box 411, the organic fertilizer outlet pipe 415 is connected to the fertilizer guide pipe 414 and is set in the fertilizer dropping space behind the curved shovel handle 21. The fertilization mechanism 4 also includes a pesticide application unit 42, comprising an ammonium modifier tank 421, a pump station 422, a pesticide delivery pipe 423, an ammonium modifier discharge pipe 424, a nozzle 425, and a battery 426. The ammonium modifier tank 421 is located behind the fertilizer tank 411. The pump station 422 is connected to the ammonium modifier tank 421, the battery 426, and the pesticide delivery pipe 423. The pesticide delivery pipe 423 is connected to the ammonium modifier discharge pipe 424. The nozzle 425 is installed at the outlet of the ammonium modifier discharge pipe 424. The ammonium modifier discharge pipe 424 and the organic fertilizer discharge pipe 415 are arranged parallel to each other in the fertilizer drop space behind the curved shovel handle 21.

[0079] like Figure 9As shown, the bottom ends of the organic fertilizer outlet pipe 415 and the improver outlet pipe 424 are respectively offset at a 45° angle. The installation direction of the nozzle 425 corresponds to the angled bottom end of the organic fertilizer outlet pipe 415 to ensure that the microbial agent and humus can be mixed evenly. The power output from the tractor is transmitted to the rotating shaft 413 through the power shaft 6, which drives the positive and negative spiral blades 412 to rotate, so that the fertilizer in the fertilizer box 411 can be transported from the middle to the two side discharge ports. The fertilizer falls into the fertilizer space formed by the expansion baffle 24 through the fertilizer guide pipe 414 and the organic fertilizer outlet pipe 415. Under the action of the pump station 422, the liquid improver is sprayed from the improver tank 421 through the pump station 422 and the guide pipe 423 to the nozzle 425, and then mixed with the solid organic fertilizer through the improver outlet pipe 424. The humus organic fertilizer and microbial agent are introduced into the fertilizer-falling space opened up by the expansion baffle 24 according to a certain ratio and application amount. The microbial agent sprayed by the nozzle 425 is evenly sprinkled in the fertilizer-falling space and mixed relatively evenly with the humus, thereby achieving the goal of deep application of solid-liquid amendment.

[0080] During deep tillage and fertilization, the tractor moves at a constant speed in a straight line, while the hydraulic mechanism adjusts the posture of the frame 1 to ensure the deep tillage mechanism 2 penetrates the soil to the designated depth. During operation, the double-headed multi-curved chisel tip 22, the curved shovel handle 21, and the side-wing sliding cutter 23 cut the soil vertically and horizontally, breaking up the compacted soil layer and the plow pan. An expansion baffle 24 is internally connected to the organic fertilizer outlet pipe 415 and the amendment outlet pipe 424. As the baffle moves forward, it prevents the disturbed soil from flowing back, creating a space for fertilizer to fall smoothly, allowing the humus and microbial agents in the organic fertilizer outlet pipe 415 and the amendment outlet pipe 424 to fall smoothly. The rotating blades 412 of the fertilization mechanism 4 transport humus from the center of the fertilizer tank 411 to the two side discharge ports. The humus falls through the fertilizer guide pipe 414 and the organic fertilizer discharge pipe 415 into the fertilizer discharge space formed by the expansion baffle 24. Under the action of the pump station 422, the microbial agent is sprayed from the conditioner tank 421 through the pump station 422 and the guide pipe 423 to the nozzle 425, and then mixed with the solid organic fertilizer through the conditioner discharge pipe 424. Under the traction of the frame 1, the soil crushing mechanism 5 has rollers 52 that move forward in a translational motion and also move circumferentially under the action of soil resistance. The blades 53 on the rollers move in a cocycloidal motion, continuously crushing the soil. Through the above operation process, the deep loosening and fertilization machine for saline-alkali land can break up the plow pan of saline-alkali land, reduce soil compaction, and improve the fertility of saline-alkali land.

[0081] This utility model can be used for multi-functional combined operations of deep loosening, fertilization, spraying, and land preparation in the process of saline-alkali land improvement. The frame 1 is connected to the rear end of the tractor through a three-point suspension frame 15. The deep loosening mechanism 2 is connected at equal intervals to the front and rear crossbeams 14 of the frame 1. The depth limiting mechanism 3 is connected to the frame 1. The fertilization mechanism 4 is fixed to the frame 1 and the deep loosening mechanism 2. The fertilization mechanism 4 includes a solid organic fertilizer application part 41 and a liquid amendment application part 42 to achieve the effect of mixing and deep application of solid and liquid amendments. The soil breaking mechanism 5 is connected to the tail of the frame 1. The roller 52 presses the soil surface, and the blade 53 inserts and cuts the soil, which can break the plow pan of saline-alkali land, reduce soil compaction, and improve the soil fertility of saline-alkali land.

[0082] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A multi-functional integrated machine for biological saline-alkali soil improvement, characterized in that, include: frame; The deep tillage mechanism includes a curved shovel handle, a mounting part, a side-wing sliding cutter, an organic fertilizer outlet pipe, and an amendment outlet pipe. The top of the curved shovel handle is connected to the frame through the mounting part. The front end of the curved shovel handle is provided with a shovel tip, and the side-wing sliding cutter is installed on one or both sides of the middle part of the curved shovel handle. A depth limiting mechanism is installed on the frame and controls the deep loosening depth by adjusting its position perpendicular to the frame. The fertilization mechanism, corresponding to the deep tillage mechanism, is located behind the frame; and The soil-crushing mechanism is hinged to the frame and located behind the fertilizing mechanism. The soil-crushing mechanism includes a connecting frame, a roller, and cutting teeth. The roller is hinged to the connecting frame, and the connecting frame is connected to the frame. The cutting teeth are arranged on the roller in an Archimedean spiral shape and move in a cocycloid motion with the movement of the roller.

2. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 1, characterized in that, The soil crushing mechanism also includes a soil crushing limiting mechanism, which includes a limiting seat and a limiting slider connected to each other. The limiting seat is installed at the tail end of the frame, and the limiting slider is installed on the connecting frame. The soil penetration depth of the soil crushing mechanism is controlled by adjusting the relative position of the limiting slider and the limiting seat.

3. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 2, characterized in that, The deep tillage mechanism also includes an expansion baffle, which is installed on the side wall of the curved shovel handle and located above the side wing sliding cutter. The expansion baffle encloses a fertilizer drop space.

4. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 3, characterized in that, The fertilization mechanism includes a fertilization section, which includes a fertilizer box, forward and reverse spiral blades, a rotating shaft, a fertilizer guide pipe, and an organic fertilizer outlet pipe. The rotating shaft is installed inside the fertilizer box, and the forward and reverse spiral blades are respectively installed on the rotating shaft corresponding to the fertilizer guide pipes. The rotating shaft is connected to the power output section of the traction machine through a power shaft installed on the frame, driving the forward and reverse spiral blades to rotate. The fertilizer guide pipe is installed at the bottom of the fertilizer box, and the organic fertilizer outlet pipe is connected to the fertilizer guide pipe and is located in the fertilizer drop space behind the curved shovel handle.

5. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 4, characterized in that, The fertilization mechanism also includes a pesticide application unit, comprising an ammonium modifier tank, a pump station, a pesticide delivery pipe, an ammonium modifier discharge pipe, a nozzle, and a battery. The ammonium modifier tank is located behind the fertilizer tank. The pump station is connected to the ammonium modifier tank, the battery, and the pesticide delivery pipe. The pesticide delivery pipe is connected to the ammonium modifier discharge pipe. The nozzle is installed at the outlet of the ammonium modifier discharge pipe. The ammonium modifier discharge pipe is arranged parallel to the organic fertilizer discharge pipe in the fertilizer drop space behind the curved shovel handle.

6. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 5, characterized in that, The bottom ends of the organic fertilizer outlet pipe and the improver outlet pipe are respectively offset by 45° bevels, and the installation direction of the nozzle corresponds to the bevel at the bottom end of the organic fertilizer outlet pipe.

7. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 1, characterized in that, The frame includes a front crossbeam, a rear crossbeam, and a three-point suspension frame. The front crossbeam is connected to the three-point suspension frame, the rear crossbeam is connected to the front crossbeam and is arranged parallel to the rear of the front crossbeam, and the three-point suspension frame is connected to the traction machine.

8. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 7, characterized in that, The frame also includes a depth-limiting fixing frame, which is installed on both sides of the front crossbeam and is arranged in a centrally symmetrical manner with the center of the front crossbeam as the center of symmetry.

9. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 7, characterized in that, Multiple deep loosening mechanisms are respectively installed on the front crossbeam and the rear crossbeam; the mounting part includes a limiting support block and a U-shaped clamp, the top end of the curved shovel handle is bolted to the limiting support block, the limiting support block is connected to the front crossbeam or the rear crossbeam through the U-shaped clamp, and the spacing of the deep loosening mechanisms is adjusted by the U-shaped clamp.

10. The multi-functional integrated machine for biological saline-alkali soil improvement according to claim 1, characterized in that, The shovel tip is a double-headed, multi-curved chisel-type shovel tip, which is installed at the bottom of the front end of the curved shovel handle. The side wing sliding cutters are symmetrically installed on both sides of the curved shovel handle.

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