An adjustable water-retaining fertilization device for Maowusu sandy land

Abstract

The invention discloses an adjustable water-retaining fertilizing device for Maowusu sandy land, comprising a traveling device and an adjusting mechanism, wherein the adjusting mechanism comprises an adjusting frame 1 and an adjusting frame 2, wherein the adjusting frame 1 and the adjusting frame 2 are both rotatably and slidably arranged on the traveling device, a sandy land ditching mechanism and a fertilizer mixing mechanism are arranged on the adjusting frame 1 and the adjusting frame 2, and the sandy land ditching mechanism is arranged on a side of the fertilizer mixing mechanism closer to the traveling device, and the sandy land ditching mechanism is used to open furrows in sandy soil. The adjustable water-retaining fertilizing device for Maowusu sandy land solves the problem in the prior art proposed in the background technology that fertilizer is sprinkled near the ground surface or gathered at the bottom of furrows when fertilizing on sandy land, which leads to poor water and fertilizer retention capacity of the fertilizer.

Description

Technical Field

[0001] The invention relates to the technical field of sandy land fertilization, and in particular to an adjustable water-retaining fertilization device for Maowusu sandy land. Background Art

[0002] The soil type of the Maowusu Desert is mainly loose sandy soil, and the land is barren and easily affected by wind erosion. It is mostly alkaline soil and is in a dry state for a long time. Most of the Maowusu Desert is located in the chestnut-calcium dry steppe zone, transitioning to the brown-calcium semi-desert zone to the northwest, and transitioning to the black loess zone in the warm zone of the Loess Plateau to the southeast. The soil in the grassland zone is mainly sandy, and there is also a small amount of loess soil distributed in high places. The soil of the Maowusu Desert is generally formed in a short period of time, the soil formation process is weak and the soil layer is thin, and the mechanical composition is mainly sand; the soil fertility is poor, and the soil organic matter content is low.

[0003] By planting trees and grass, sand dunes can be effectively fixed and wind and sand erosion can be reduced. Planting vegetation requires fertilizing the sand, but the soil in the Maowusu Desert is mainly sand, and its ability to retain water and fertilizer is poor. Traditional fertilization devices fertilize by sprinkling fertilizer on the surface of the sand and then stirring it. In this way, the fertilizer is close to the ground and is easy to dry. Or the fertilizer is directly sprinkled at the bottom of the ridge, where the fertilizer gathers and cannot be fully soaked, and has poor water retention capacity. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an adjustable water-retaining fertilization device for the Maowusu sandy land to solve the problem in the prior art proposed in the background technology that the fertilizer is sprinkled close to the ground surface or gathered at the bottom of the ridge when fertilizing on the sandy land, resulting in poor water and fertilizer retention capacity of the fertilizer.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An adjustable water-retaining fertilization device for Maowusu sandy land comprises a traveling device and an adjusting mechanism, wherein the adjusting mechanism is rotatably arranged on the traveling device, the adjusting mechanism comprises an adjusting frame 1 and an adjusting frame 2, the adjusting frame 1 is slidably connected to the adjusting frame 2, the adjusting frame 1 and the adjusting frame 2 are both rotatably and slidably arranged on the traveling device, the adjusting frame 1 and the adjusting frame 2 are arranged opposite to each other, a sand trenching mechanism and a fertilizer mixing mechanism are arranged on the adjusting frame 1 and the adjusting frame 2, the adjusting mechanism is used to adjust the width of the sand trenching mechanism and the fertilizer mixing mechanism, the sand trenching mechanism is rotatably arranged on the adjusting frame 1 and the adjusting frame 2, the sand trenching mechanism is arranged on a side of the fertilizer mixing mechanism closer to the traveling device, and the sand trenching mechanism is used to open furrows in sandy soil.

[0007] Preferably, the fertilizer mixing mechanism includes a soil collecting frame assembly and a fertilizer applying assembly, the soil collecting frame assembly and the fertilizer applying assembly are slidably connected, the soil collecting frame assembly is arranged on the adjusting frame one and the adjusting frame two, the fertilizer applying assembly is slidably connected to the adjusting frame one and the adjusting frame two, and the fertilizer mixing mechanism is used to fully mix the sand in the subsurface layer with the fertilizer.

[0008] Furthermore, the adjusting mechanism also includes a motor 1, a shaft, a drive cylinder 1 and a spreading assembly. The motor 1 is fixedly arranged on the adjusting frame 1, and the output end of the motor 1 is transmission-connected to the sand ditching mechanism. The adjusting frame 1 and the adjusting frame 2 are both provided with shafts. The drive cylinder 1 is rotatably arranged on the traveling device. The spreading assembly is arranged between the adjusting frame 1 and the adjusting frame 2. The adjusting frame 1 and the adjusting frame 2 are both rotationally connected to the spreading assembly. The spreading assembly is used to adjust the distance between the adjusting frame 1 and the adjusting frame 2.

[0009] The spreading assembly includes a pushing plate, a supporting rod and a second driving cylinder. Four pushing plates are provided. The pushing plates are fixedly provided on the two shafts. A pushing plate is fixedly provided on the side of the first adjustment frame and the second adjustment frame away from the shaft. A supporting rod is rotatably provided on each pushing plate. The two supporting rods close to the shaft are rotatably connected to the output end of the second driving cylinder, and the two supporting rods away from the shaft are rotatably connected to the second driving cylinder.

[0010] As a further solution of the present application, the sand ditching mechanism includes a soil-turning wheel 1 and a soil-turning wheel 2, and the soil-turning wheel 1 is provided with two. The two soil-turning wheels 1 are respectively rotatably provided on the adjusting frame 1 and the adjusting frame 2, and the output end of the motor 1 is transmission-connected with the soil-turning wheel 1 rotatably provided on the adjusting frame 1, and the soil-turning wheel 2 is provided between the two soil-turning wheels 1 and is slidingly connected with the two soil-turning wheels 1. Two springs are provided in the soil-turning wheel 2, and the two springs are respectively provided on both sides of the soil-turning wheel 2, and the springs are in contact with the soil-turning wheel 1, and multiple soil-turning shovels are provided on both the soil-turning wheel 1 and the soil-turning wheel 2.

[0011] As a further scheme of the present application, the fertilization assembly includes a fixed plate, a fertilizer frame, a second motor and a soil dividing plate. One end of the fixed plate close to the shaft body is rotatably and slidably connected to the two shaft bodies, the output end of the driving cylinder one is rotatably connected to one end of the fixed plate close to the shaft body, the fertilizer frame is fixedly connected to the fixed plate, a feeding barrel is provided at the bottom of the fertilizer frame, the second motor is fixedly set on the fertilizer frame, a spiral blade is fixedly connected to the output end of the second motor, the spiral blade is rotatably set in the feeding barrel, and the soil dividing plate is fixedly set in the feeding barrel.

[0012] A mixing frame, a mixing shaft and a motor three are arranged on the soil dividing plate, the mixing frame is fixedly arranged on the soil dividing plate, the mixing frame is communicated with the feeding barrel, the mixing frame is slidably connected with the soil collecting frame assembly, the mixing shaft is rotatably arranged in the mixing frame, the motor three is fixedly arranged on the soil dividing plate, and the output end of the motor three is drivingly connected with the mixing shaft.

[0013] The soil collecting frame assembly includes a soil collecting frame 1 and a soil collecting frame 2. The soil collecting frame 1 is fixedly arranged on one end of the adjusting frame 1 away from the shaft body, and the soil collecting frame 1 is slidably arranged on the mixing frame. The soil collecting frame 2 is fixedly arranged on one end of the adjusting frame 2 away from the shaft body, and the soil collecting frame 2 is slidably arranged on the mixing frame. The soil collecting frame 1, the soil collecting frame 2 and the mixing frame are all C-shaped.

[0014] Compared with the prior art, the present invention provides an adjustable water-retaining fertilization device for Maowusu sandy land, which has the following beneficial effects:

[0015] In the present invention, by setting the adjusting frame one and the adjusting frame two, when the output end of the driving cylinder two is shortened, the distance between the two ends of the driving cylinder two is shortened, the angle between the struts on both sides is pulled smaller, and then the adjusting frame one and the adjusting frame two are pulled closer to each other. When the adjusting frame one and the adjusting frame two need to be away from each other, the output end of the driving cylinder two is extended, which can push the angle between the two adjacent struts to become larger. When the distance between the adjusting frame one and the adjusting frame two changes, the distance between the two soil turning wheels one will be driven to change, thereby changing the width of the turned ridge furrow, and also driving the distance between the soil collecting frame one and the soil collecting frame two to change, thereby changing the range of fertilizer and sand after being mixed and spread; by setting the mixing frame and the soil collecting frame assembly, the mixing frame is set to an I-shaped, the soil collecting frame one and the soil collecting frame two slide on both sides of the mixing frame respectively, and the soil collecting frame one, the soil collecting frame two and the mixing frame form a mouth-shaped frame, when the soil collecting frame one and the soil collecting frame two slide respectively under the drive of the adjusting frame one and the adjusting frame two When the motor is in motion, the amount of sand and soil entering between the soil collecting frame one and the soil collecting frame two can be changed. The mixing shaft is driven by the output end of the motor three to rotate. When the mixing shaft rotates, the sand and soil can be driven to mix with the fertilizer entering the mixing frame through the feeding tube. At the same time, the mixed sand and soil will leave the mixing frame under the push of the sand entering the mixing frame and be spread at the bottom of the ridge ditch. Therefore, the adjustable water-retaining fertilization device for the Maowusu sandy land can mix the sand and soil with the fertilizer at the bottom of the ridge ditch after turning over the ridge ditch in the sand. At the same time, the width of fertilization can be adjusted according to the actual needs. The soil characteristic of the Maowusu sandy land is that the soil particles are large and the moisture of the fertilizer is easy to lose. The present invention releases the fertilizer at the bottom of the ridge ditch, and the upper soil can be isolated from the air to a certain extent, so that the fertilizer is easier to retain moisture than directly applying fertilizer on the soil surface. At the same time, by mixing the soil and the fertilizer, the fertilizer is released more evenly, and the width of fertilization is adjustable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the overall structure from another perspective in a preferred embodiment of the present application;

[0018] Figure 3 This is a cross-sectional structural diagram of the coordination of the regulating mechanism and the fertilizer mixing mechanism in a preferred embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the soil-turning wheel 2 in a preferred embodiment of the present application;

[0020] Figure 5 This is a structural schematic diagram of a propping assembly in a preferred embodiment of the present application;

[0021] Figure 6This is a schematic diagram of the internal cross-sectional structure of a soil dividing plate in a preferred embodiment of the present application;

[0022] Figure 7 It is a partial cross-sectional structural diagram of the cooperation between the soil collecting frame assembly and the mixing frame in a preferred embodiment of the present application;

[0023] Figure 8 This is a schematic structural diagram of a soil collecting frame assembly in a preferred embodiment of the present application.

[0024] In the figure: 1. Traveling device; 2. Adjusting frame 1; 3. Adjusting frame 2; 4. Motor 1; 5. Axle; 6. Driving cylinder 1; 7. Pushing plate; 8. Support rod; 9. Driving cylinder 2; 10. Soil-turning wheel 1; 11. Soil-turning wheel 2; 12. Spring; 13. Soil-turning shovel; 14. Fixed plate; 15. Fertilizer frame; 16. Feeding barrel; 17. Motor 2; 18. Spiral blade; 19. Soil dividing plate; 20. Mixing frame; 21. Mixing shaft; 22. Motor 3; 23. Soil collecting frame 1; 24. Soil collecting frame 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 8, an adjustable water-retaining fertilization device for Maowusu sandy land, comprising a traveling device 1 and an adjusting mechanism, wherein the traveling device 1 is provided with an internal combustion engine or an electric motor to drive wheels or tracks to move, thereby driving the adjusting device, the sand ditching mechanism and the fertilizer mixing mechanism to move, and the adjusting mechanism is rotatably arranged on the traveling device 1, and the adjusting mechanism comprises an adjusting frame 1 2 and an adjusting frame 2 3, and the adjusting frame 1 2 and the adjusting frame 2 3 are slidably connected, and the adjusting frame 1 2 and the adjusting frame 2 3 are both rotatably and slidably arranged on the traveling device 1, and the adjusting frame 1 2 and the adjusting frame 2 3 are arranged opposite to each other, and the sand ditching mechanism and the fertilizer mixing mechanism are arranged on the adjusting frame 1 2 and the adjusting frame 2 3, and the adjusting mechanism is used to adjust the width of the sand ditching mechanism and the fertilizer mixing mechanism, and the sand ditching mechanism is rotatably arranged on the adjusting frame 1 2 and the adjusting frame 2 3, and the sand ditching mechanism is arranged closer to the fertilizer mixing mechanism On one side of the traveling device 1, the sand trenching mechanism is used to open furrows in the sand, the fertilizer mixing mechanism includes a soil collecting frame assembly and a fertilizer applying assembly, the soil collecting frame assembly and the fertilizer applying assembly are slidably connected, the soil collecting frame assembly is arranged on the adjusting frame 1 2 and the adjusting frame 2 3, the fertilizer applying assembly is slidably connected to the adjusting frame 1 2 and the adjusting frame 2 3, the fertilizer mixing mechanism is used to fully mix the sand and fertilizer in the lower layer of the surface, the adjusting frame 1 2 and the adjusting frame 2 3 can be turned over on the traveling device 1 under the drive of the driving cylinder 1 6, rotated to contact the ground when needed, and rotated upward and folded when not in use. Since the surface of the Maowusu Sandy Land is mainly sand, the adjusting frame 1 2 and the adjusting frame 2 3 will not be subject to greater resistance from the sand, and the main function of the sand trenching mechanism is to reduce the resistance encountered by the fertilizer mixing mechanism when releasing fertilizer under the ground, and the adjusting frame 1 2 and the adjusting frame 2 3 are set to be L-shaped.

[0027] See also Figures 1 to 5The adjusting mechanism also includes a motor 4, a shaft 5, a driving cylinder 6 and a propping assembly. The motor 4 is fixedly arranged on the adjusting frame 2, and the output end of the motor 4 is drivingly connected to the sand ditching mechanism. The adjusting frame 2 and the adjusting frame 2 3 are both provided with shafts 5. The driving cylinder 6 is rotatably arranged on the traveling device 1. The propping assembly is arranged between the adjusting frame 2 and the adjusting frame 2 3. The adjusting frame 2 and the adjusting frame 2 3 are both rotatably connected with the propping assembly. The propping assembly is used to adjust the distance between the adjusting frame 2 and the adjusting frame 2 3. The propping assembly includes a pushing plate 7, a strut 8 and a driving cylinder 2 9. Four pushing plates 7 are arranged. The pushing plates 7 are fixedly arranged on the two shafts 5. A pushing plate 7 is fixedly arranged on the side of the adjusting frame 2 and the adjusting frame 2 3 away from the shaft 5. Each pushing plate 7 is rotatably provided with a strut 8, and two struts 8 close to the shaft 5 It is rotatably connected to the output end of the driving cylinder 29, and the two struts 8 away from the shaft body 5 are rotatably connected to the driving cylinder 29. The adjusting frame 1 2 and the adjusting frame 2 3 are slidably connected through the fixing plate 14, the soil collecting frame assembly and the sand ditching mechanism. When the output end of the driving cylinder 29 is shortened, the distance between the two ends of the driving cylinder 29 is shortened, and the angle between the struts 8 on both sides is pulled smaller, thereby pulling the adjusting frame 1 2 and the adjusting frame 2 3 closer to each other. When the adjusting frame 1 2 and the adjusting frame 2 3 need to be away from each other, the output end of the driving cylinder 29 is extended, which can push the angle between the two adjacent struts 8 to increase. When the distance between the adjusting frame 1 2 and the adjusting frame 2 3 changes, the distance between the two turning wheels 10 will be driven to change, thereby changing the width of the turned ridge ditch, and the distance between the soil collecting frame 1 23 and the soil collecting frame 2 24 will be driven to change, thereby changing the range of sowing after the fertilizer and sand are mixed.

[0028] See also Figures 2 to 4 The sand trenching mechanism includes a soil turning wheel 10 and a soil turning wheel 2 11. Two soil turning wheels 10 are provided. The two soil turning wheels 10 are rotatably arranged on an adjusting frame 2 and an adjusting frame 2 3 respectively. The output end of the motor 14 is transmission-connected with the soil turning wheel 10 rotatably arranged on the adjusting frame 2. The soil turning wheel 2 11 is arranged between the two soil turning wheels 10 and is slidably connected with the two soil turning wheels 10. Two springs 12 are provided in the soil turning wheel 2 11. The two springs 12 are respectively arranged on both sides of the soil turning wheel 2 11. The springs 12 are in contact with the soil turning wheel 10. The soil turning wheel 10 is in contact with the soil turning wheel 10. A plurality of turning shovels 13 are arranged on the soil wheel 11. During the rotation of the soil wheel 10 and the plurality of turning shovels 13 on the soil wheel 11, the sand will be lifted to both sides. The soil wheel 10 and the turning shovels 13 on the soil wheel 11 are arranged alternately. When the two soil wheels 10 are close to each other, the turning shovels 13 will not contact each other. When the two soil wheels 10 are driven away from each other by the adjusting frame 1 2 and the adjusting frame 2 3, under the action of the spring 12, the soil wheel 2 11 is located between the two soil wheels 10, so that the sand can be turned over evenly when the distance between the two turning wheels 1 changes.

[0029] See also Figures 3 to 6 The fertilization assembly includes a fixed plate 14, a fertilizer frame 15, a motor 17 and a soil dividing plate 19. The end of the fixed plate 14 close to the shaft body 5 is rotatably and slidably connected to the two shaft bodies 5. The output end of the drive cylinder 16 is rotatably connected to the end of the fixed plate 14 close to the shaft body 5. The fertilizer frame 15 is fixedly connected to the fixed plate 14. A feeding barrel 16 is arranged at the bottom of the fertilizer frame 15. The motor 17 is fixedly arranged on the fertilizer frame 15. A spiral blade 18 is fixedly connected to the output end of the motor 17. The spiral blade 18 is rotatably arranged in the feeding barrel 16. The soil dividing plate 19 It is fixedly arranged in the feeding barrel 16, and the output end of the driving cylinder 16 pulls the fixed plate 14, which can drive the adjusting frame 1 2, the adjusting frame 2 3 and the fertilizer frame 15 to rotate at the same time. The spiral blade 18 is driven by the output end of the motor 2 17 to uniformly transport the fertilizer in the fertilizer frame 15 to the mixing frame 20. The fertilizer frame 15 is connected to the mixing frame 20 through the soil dividing plate 19. The soil dividing frame is set to a cone. When driving the mixing frame 20 to move, the soil dividing frame can separate the contacted soil to both sides to avoid the resistance of the sand affecting the movement of the mixing frame 20 in the soil.

[0030] See also Figures 5 to 7 The soil dividing plate 19 is provided with a mixing frame 20, a mixing shaft 21 and a motor three 22. The mixing frame 20 is fixedly arranged on the soil dividing plate 19. The mixing frame 20 is communicated with the feeding tube 16. The mixing frame 20 is slidably connected with the soil collecting frame assembly. The mixing shaft 21 is rotatably arranged in the mixing frame 20. The motor three 22 is fixedly arranged on the soil dividing plate 19. The output end of the motor three 22 is transmission-connected with the mixing shaft 21. The mixing frame 20 is arranged in an I-shaped shape. The soil collecting frame one 23 and the soil collecting frame two 24 slide on both sides of the mixing frame 20 respectively. The soil collecting frame one 23 and the soil collecting frame two 24 The mixing frame 20 forms a U-shaped frame. When the soil collecting frame 1 23 and the soil collecting frame 2 24 slide respectively under the drive of the adjusting frame 1 2 and the adjusting frame 2 3, the amount of sand and soil entering between the soil collecting frame 1 23 and the soil collecting frame 2 24 can be changed. The mixing shaft 21 rotates under the drive of the output end of the motor 3 22. When the mixing shaft 21 rotates, the sand and soil can be mixed with the fertilizer entering the mixing frame 20 through the feeding tube 16. At the same time, the mixed sand and soil will leave the mixing frame 20 under the push of the sand entering the mixing frame 20 and be sown at the bottom of the ridge.

[0031] See also Figures 6 to 8The soil collecting frame assembly includes a soil collecting frame 1 23 and a soil collecting frame 24. The soil collecting frame 1 23 is fixedly arranged on the end of the adjusting frame 1 2 away from the shaft body 5, and the soil collecting frame 1 23 is slidably arranged on the mixing frame 20. The soil collecting frame 24 is fixedly arranged on the end of the adjusting frame 2 3 away from the shaft body 5, and the soil collecting frame 24 is slidably arranged on the mixing frame 20. The soil collecting frame 1 23, the soil collecting frame 24 and the mixing frame 20 are all C-shaped, and the soil collecting frame 1 23 and the soil collecting frame 24 are both in contact with the mixing frame 20.

[0032] In summary, the working principle of the adjustable water-retaining fertilization device for Maowusu sandy land is as follows:

[0033] The output end of motor 14 drives turning wheel 10 and turning wheel 2 11 to rotate and turn over the sand, and the sand enters the mixing frame 20. The output end of motor 2 17 drives the propeller blades to rotate and feed the fertilizer into the mixing frame 20 through the feeding tube 16. The output end of motor 3 22 drives the mixing shaft 21 to rotate, so that the sand and fertilizer in the mixing frame 20 are mixed and spread at the bottom of the ridge. When the output end of driving cylinder 2 9 is extended, it pushes the strut 8 to open each other. The strut 8 pushes the adjusting frame 1 2 and the adjusting frame 2 3 to both sides, and the two turning wheels 10 and the collecting frame 1 23 and the collecting frame 2 24 move away from each other, thereby expanding the width of the turning ridge and the width of the mixture of fertilizer and sand.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable water-retaining fertilization device for Maowusu sandy land, comprising a traveling device (1), characterized in that: Also includes: An adjusting mechanism, the adjusting mechanism being rotatably arranged on the traveling device (1), the adjusting mechanism comprising an adjusting frame 1 (2) and an adjusting frame 2 (3), the adjusting frame 1 (2) and the adjusting frame 2 (3) being slidably connected, the adjusting frame 1 (2) and the adjusting frame 2 (3) being both rotatably and slidably arranged on the traveling device (1), the adjusting frame 1 (2) and the adjusting frame 2 (3) being arranged opposite to each other, the adjusting frame 1 (2) and the adjusting frame 2 (3) being provided with a sand trenching mechanism and a fertilizer mixing mechanism, the adjusting mechanism being used to adjust the width of the sand trenching mechanism and the fertilizer mixing mechanism; The sand trenching mechanism is rotatably arranged on the first adjusting frame (2) and the second adjusting frame (3), and the sand trenching mechanism is arranged on a side of the fertilizer mixing mechanism closer to the traveling device (1), and the sand trenching mechanism is used to open a furrow in the sand; Wherein, the adjustment mechanism comprises a soil dividing plate (19), the soil dividing plate (19) is rotatably arranged on the adjustment frame 1 (2) and the adjustment frame 2 (3), the soil dividing plate (19) is arranged in a conical shape, and the soil dividing plate (19) can extend into the soil; The fertilizer mixing mechanism comprises a soil collecting frame assembly and a fertilizer applying assembly, wherein the soil collecting frame assembly and the fertilizer applying assembly are slidably connected, the soil collecting frame assembly is arranged on the first adjusting frame (2) and the second adjusting frame (3), and the fertilizer applying assembly is slidably connected to the first adjusting frame (2) and the second adjusting frame (3), and the fertilizer mixing mechanism is used to fully mix the sand and soil in the lower layer of the ground surface with the fertilizer; The regulating mechanism also includes: Motor 1 (4), the motor 1 (4) is fixedly mounted on the adjustment frame 1 (2), and the output end of the motor 1 (4) is drivingly connected to the sand trenching mechanism; A shaft body (5), the first adjustment frame (2) and the second adjustment frame (3) are both provided with a shaft body (5); A driving cylinder (6), wherein the driving cylinder (6) is rotatably mounted on the traveling device (1); A spreading assembly, the spreading assembly being arranged between the first adjustment frame (2) and the second adjustment frame (3), the first adjustment frame (2) and the second adjustment frame (3) being both rotatably connected to the spreading assembly, and the spreading assembly being used to adjust the distance between the first adjustment frame (2) and the second adjustment frame (3); The expansion assembly comprises: A push plate (7), wherein four push plates (7) are provided, and each of the two shaft bodies (5) is fixedly provided with the push plate (7), and each of the adjustment frame 1 (2) and the adjustment frame 2 (3) is fixedly provided with one push plate (7) on a side away from the shaft body (5); A support rod (8), each of the push plates (7) being rotatably provided with a support rod (8); The second driving cylinder (9), the two support rods (8) close to the shaft (5) are rotatably connected to the output end of the second driving cylinder (9), and the two support rods (8) away from the shaft (5) are rotatably connected to the second driving cylinder (9).

2. The adjustable water-retaining fertilization device for Maowusu sandy land according to claim 1 is characterized in that: The sand ditching mechanism comprises: A soil turning wheel (10), wherein two soil turning wheels (10) are provided, and the two soil turning wheels (10) are rotatably provided on the adjusting frame (2) and the adjusting frame (3) respectively, and the output end of the motor (4) is drivingly connected to the soil turning wheel (10) rotatably provided on the adjusting frame (2); A second tiller wheel (11), the second tiller wheel (11) being arranged between the two first tiller wheels (10) and being slidably connected to the two first tiller wheels (10), the second tiller wheel (11) being provided with two springs (12), the two springs (12) being arranged on both sides of the second tiller wheel (11), and the springs (12) being in contact with the first tiller wheel (10); A plurality of tilling shovels (13) are provided on both the tilling wheel one (10) and the tilling wheel two (11).

3. The adjustable water-retaining fertilization device for Maowusu sandy land according to claim 2 is characterized in that: The fertilization assembly comprises: a fixed plate (14), wherein one end of the fixed plate (14) close to the shaft body (5) is rotatably and slidably connected to the two shaft bodies (5), and the output end of the driving cylinder 1 (6) is rotatably connected to one end of the fixed plate (14) close to the shaft body (5); A fertilizer frame (15), the fertilizer frame (15) being fixedly connected to the fixed plate (14), and a feeding cylinder (16) being provided at the bottom of the fertilizer frame (15); Motor 2 (17), the motor 2 (17) is fixedly arranged on the fertilizer frame (15), a spiral blade (18) is fixedly connected to the output end of the motor 2 (17), the spiral blade (18) is rotatably arranged in the feeding barrel (16), and the soil dividing plate (19) is fixedly arranged in the feeding barrel (16).

4. The adjustable water-retaining fertilization device for Maowusu sandy land according to claim 3 is characterized in that: The soil dividing plate (19) is provided with: A mixing frame (20), the mixing frame (20) being fixedly arranged on the soil dividing plate (19), the mixing frame (20) being connected to the feeding cylinder (16), and the mixing frame (20) being slidably connected to the soil collecting frame assembly; a mixing shaft (21), the mixing shaft (21) being rotatably disposed in the mixing frame (20); Motor three (22), the motor three (22) is fixedly arranged on the soil dividing plate (19), and the output end of the motor three (22) is drivingly connected to the mixing shaft (21).

5. The adjustable water-retaining fertilization device for Maowusu sandy land according to claim 4 is characterized in that: The soil collecting frame assembly comprises: A soil collecting frame (23), the soil collecting frame (23) being fixedly arranged on an end of the adjusting frame (2) away from the shaft (5), and the soil collecting frame (23) being slidably arranged on the mixing frame (20); A second soil collecting frame (24), wherein the second soil collecting frame (24) is fixedly arranged on an end of the second adjustment frame (3) away from the shaft (5), and the second soil collecting frame (24) is slidably arranged on the mixing frame (20).

6. The adjustable water-retaining fertilization device for Maowusu sandy land according to claim 5 is characterized in that: The soil collecting frame 1 (23), the soil collecting frame 2 (24) and the mixing frame (20) are all C-shaped.

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