Wheat fertilizer applicator suitable for complex terrains

Abstract

The invention relates to the field of agricultural planting, in particular to a wheat fertilizer applicator applicable to complex terrains, which comprises a frame, a handle, wheels and the like. Two handles in bilateral symmetry are fixedly connected to the rear side of the frame; wheels are rotationally connected to the front side of the frame; and a plurality of through grooves are formed in the wheels. The wheel and the electric power storage type electric push rod rotate anticlockwise with the stop block as a fulcrum, so that the wheel crosses a gully, the situation that the wheel sinks in the gully and is difficult to lift is avoided, the speed of the single-wheel fertilizer applicator passing through the gully is increased, and the fertilizer application efficiency of the single-wheel fertilizer applicator is improved; the single-wheel fertilizer applicator can stay on the hillside at any time and any place, so that the fertilizer application convenience and safety of the single-wheel fertilizer applicator on the hillside are improved, and the continuous downward flowing of the fertilizer is stopped through the bulge part, so that the condition that the growth of wheat at an uphill position is inconsistent with that of wheat at a downhill position is avoided.

Description

Technical Field

[0001] The invention relates to the field of agricultural planting, and in particular to a wheat fertilizer applicator suitable for complex terrains. Background Art

[0002] Wheat can be planted in a wide range. It can be planted not only in plain areas but also in hilly areas. Compared with plain areas, hilly areas have undulating terrain. Especially when planting wheat on a small scale on hillsides with inconvenient transportation, farmers usually use single-wheel fertilizer spreaders to apply fertilizer to wheat due to terrain restrictions and cost constraints. However, due to the uneven slopes and the heavy weight of the single-wheel fertilizer spreader itself, it is difficult for the single-wheel fertilizer spreader to cross the gully sections of the hillside, resulting in the single-wheel fertilizer spreader moving slowly on the hillside, reducing the fertilization efficiency. In addition, when applying fertilizer, granular solid fertilizers and liquid water fertilizers are easy to flow downward along the slope of the hillside, so that the wheat on the downhill has too much nutrients, while the wheat on the uphill has insufficient nutrients, which leads to inconsistent wheat growth and affects wheat yield and quality. Summary of the invention

[0003] In order to overcome the shortcomings of low fertilization efficiency and uneven fertilizer distribution caused by uneven terrain and limitations of single-wheel fertilizer spreaders when planting wheat on a small scale on hillsides in hilly areas, which affect the growth consistency, yield and quality of wheat, the present invention provides a wheat fertilizer spreader suitable for complex terrain.

[0004] The technical implementation scheme of the present invention is: a wheat fertilizer spreader suitable for complex terrain, including a frame and a handle; two left-right symmetrical handles are fixedly connected to the rear side of the frame; it also includes wheels, a power assembly, a storage electric push rod, a block and a fertilizer assembly; the front side of the frame is rotatably connected to the wheel; a plurality of through slots are opened on the wheel; a plurality of storage electric push rods are connected to the wheel through a torsion spring; each storage electric push rod has a block fixedly connected to its telescopic end for facilitating the wheel to cross the gully; each block can pass through the adjacent through slot and slide in contact with it; a power assembly is installed on the frame; the wheel is driven to rotate by the power assembly; and a fertilizer assembly for fertilizing wheat is installed on the frame.

[0005] More preferably, the power assembly includes a motor and a battery; the motor is fixedly connected to the front side of the frame; the motor output shaft is fixedly connected to the wheel; the battery is fixedly connected to the frame; and the battery and the motor are connected by wires.

[0006] More preferably, the fertilization assembly includes a storage box, a discharge pipe and a valve; the storage box is arranged in the middle of the frame; a feed port is opened on the upper side of the storage box; a discharge pipe is connected to the lower side of the storage box; a plurality of through holes are opened on the discharge pipe; the through holes are connected to the inside of the storage box; and the discharge pipe is connected to a valve.

[0007] More preferably, the length of the through groove along the circumferential direction of the wheel is set to be greater than the length of the stopper along the circumferential direction of the wheel.

[0008] More preferably, the cross-sectional shape of the through groove is set to be trapezoidal.

[0009] More preferably, it also includes a slider and a spring telescopic rod; each block is slidably connected to a slider, and the slider protrudes from the outer surface of the wheel; a spring telescopic rod is fixed between each slider and the adjacent block; each slider is provided with an inclined surface; the inclined surface is in sliding contact with the adjacent through groove.

[0010] More preferably, each through groove is provided with a first V-shaped surface; each stopper is provided with a second V-shaped surface; and two adjacent first V-shaped surfaces and second V-shaped surfaces are provided to protrude toward each other.

[0011] More preferably, a plurality of anti-skid protrusions are arranged on the outer surface of the wheel along the circumferential direction.

[0012] More preferably, it also includes a limiting wheel; a limiting wheel is fixedly connected to the middle of the discharge pipe to prevent stones from being stuck between the wheel and the block; five protruding blocks are arranged on the limiting wheel, and the protruding blocks are all arranged in a spiral inclined shape; a gap is formed between every two adjacent protruding blocks; the width of the gap is greater than the width of the slider.

[0013] More preferably, stirring blades are also included; a plurality of stirring blades for preventing fertilizer from settling are fixedly connected to the upper side of the discharge pipe; and the plurality of stirring blades are all located in the storage box.

[0014] The beneficial effects of the present invention are: The wheels and the battery-powered electric push rod rotate counterclockwise with the block as a fulcrum, so that the wheels can cross the gullies, avoid the wheels getting stuck in the gullies and being difficult to lift, and increase the speed of the single-wheel fertilizer spreader when passing through the gullies, thereby improving the fertilization efficiency of the single-wheel fertilizer spreader, and the block is inserted into the soil, so that the single-wheel fertilizer spreader can stay on the hillside anytime and anywhere, thereby improving the convenience and safety of the single-wheel fertilizer spreader in fertilizing on the hillside; Compared with conventional small fertilizer spreaders, the ridges block the continuous downward flow of fertilizer, thus avoiding the situation where the wheat on the uphill side and the wheat on the downhill side grow inconsistently. This ensures that the wheat grows relatively evenly when fertilizing on the hillside, improves the wheat yield and quality, and improves the adaptability of the fertilizer spreader in hillside areas. The fertilizer is gathered to the middle of the ridge through the V-shaped concave surface of the ridge, so that the fertilizer is located in the middle of the rut as much as possible, so that the distance between the fertilizer and the wheat on both sides of the rut is relatively consistent, thereby making the growth state of the wheat as consistent as possible; When granular solid fertilizer is stored in the storage box, the solid fertilizer at the bottom of the storage box is continuously stirred by the stirring blades, so that the solid fertilizer at the bottom of the storage box is always in a moving state, thereby preventing the solid fertilizer from being blocked in the through hole and affecting the normal discharge of the solid fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the wheat fertilizer spreader applicable to complex terrains of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the wheel, the electric push rod and the block combination of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the block, the sliding block and the spring telescopic rod combination of the present invention; Figure 4 It is a combined cross-sectional view of the wheel, the block and the slider of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the discharge pipe, the limiting wheel and the stirring blade combination of the present invention; Figure 6 It is a combined sectional view of the material storage box, the material discharge pipe and the limiting wheel of the present invention.

[0016] In the above drawings: 1-frame, 2-wheel, 2001-through groove, 2002-first V-shaped surface, 3-storage box, 3001-feeding port, 4-discharge pipe, 4001-through hole, 5-valve, 6-battery, 7-handle, 8-storage electric push rod, 9-block, 9001-second V-shaped surface, 201-motor, 202-slider, 20201-inclined surface, 203-spring telescopic rod, 204-anti-slip protrusion, 301-limiting wheel, 30101-protruding block, 30102-gap, 302-mixing blade. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention. Example 1

[0018] like Figure 1-Figure 6 As shown, a wheat fertilizer spreader suitable for complex terrain includes a frame 1 and a handle 7; two left-right symmetrical handles 7 are fixedly connected to the rear side of the frame 1; It also includes wheels 2, a power assembly, a storage electric push rod 8, a block 9 and a fertilizing assembly; the wheel 2 is rotatably connected to the front side of the frame 1; three through grooves 2001 arranged in a ring are opened on the wheel 2; three storage electric push rods 8 arranged in a ring are connected to the wheel 2 through a torsion spring; each storage electric push rod 8 has a block 9 fixedly connected to the telescopic end; each block 9 can pass through the adjacent through groove 2001 and slide in contact with it; a power assembly is installed on the frame 1; the wheel 2 is driven to rotate by the power assembly; a fertilizing assembly is installed in the middle of the frame 1, and fertilizer is applied to the wheat through the fertilizing assembly.

[0019] The power assembly includes a motor 201 and a battery 6; the motor 201 is fixedly connected to the right front side of the frame 1; the output shaft of the motor 201 is fixedly connected to the wheel 2; the battery 6 is fixedly connected to the front side of the frame 1; the battery 6 and the motor 201 are connected through a wire.

[0020] The fertilization assembly includes a storage box 3, a discharge pipe 4 and a valve 5; the storage box 3 is arranged in the middle of the frame 1; a feed port 3001 is provided on the upper side of the storage box 3; the discharge pipe 4 is connected to the lower side of the storage box 3; four through holes 4001 arranged in a ring are provided on the discharge pipe 4; the through holes 4001 are connected to the inside of the storage box 3; and the discharge pipe 4 is connected to the valve 5.

[0021] The length of the through groove 2001 along the circumferential direction of the wheel 2 is set to be greater than the length of the stopper 9 along the circumferential direction of the wheel 2 .

[0022] The cross-sectional shape of the through slot 2001 is set to be a trapezoid when viewed from front to back.

[0023] It also includes a slider 202 and a spring telescopic rod 203; each block 9 is slidably connected to a slider 202, and the slider 202 protrudes from the outer surface of the wheel 2; a spring telescopic rod 203 is fixedly connected between each slider 202 and the adjacent block 9; each slider 202 is provided with an inclined surface 20201; the inclined surface 20201 is in sliding contact with the adjacent through groove 2001.

[0024] Furthermore, in order to improve the blocking effect on fertilizers and prevent fertilizer overflow, each through groove 2001 is provided with a first V-shaped surface 2002; each stopper 9 is provided with a second V-shaped surface 9001; and two adjacent first V-shaped surfaces 2002 and second V-shaped surfaces 9001 are provided to protrude toward each other.

[0025] Furthermore, in order to improve the grip of the wheel 2 on a hillside, a plurality of anti-skid protrusions 204 are provided on the outer surface of the wheel 2 along the circumferential direction.

[0026] The following is a detailed description of the process of applying fertilizer to wheat using a wheeled fertilizer spreader on hillside terrain that is difficult to access; Because the single-wheel fertilizer spreader is located on a hillside and is heavy, it is very laborious to push it uphill manually. Therefore, the fertilizer is first injected into the storage box 3 through the feed port 3001, wherein the fertilizer can be a granular solid fertilizer or a liquid water fertilizer. Then, the frame 1 is manually pushed to the foot of the hillside, and the center position of the wheel 2 is aligned between two rows of wheat. Then, the battery 6 provides power to the motor 201, and the motor 201 is controlled to drive the wheel 2 to rotate. Based on the reference from right to left, the wheel 2 rotates counterclockwise, thereby driving the single-wheel fertilizer spreader to rotate counterclockwise. The frame 1, the storage box 3 and their connecting parts move upward along the hillside. A person only needs to hold the handle 7 to control the moving direction of the wheel 2, which greatly reduces the labor intensity of manually pushing the single-wheel fertilizer spreader, so that the wheel 2 passes through the soil between two rows of wheat. It is explained here that the wheat planting soil is loose, so that the soil is crushed by the wheel 2 to form long ruts. In this process, the control valve 5 is opened, so that the fertilizer in the storage box 3 flows out through the discharge pipe 4, and then the fertilizer flows to the soil located at the rut, thereby realizing the fertilization of wheat.

[0027] When the wheel 2 passes through a deeper gully, the wheel 2 is easily stuck in the gully, and the wheel 2 needs to be lifted manually, which is time-consuming and labor-intensive, and reduces the fertilization efficiency of the single-wheel fertilizer spreader. Therefore, when the wheel 2 is about to pass through the gully, the handle 7 is held to control the frame 1 to stop moving forward, so that the wheel 2 stops on one side of the gully, and the wheel 2 is controlled to continue to rotate until the block 9 located at the front side is facing the gully, and the telescopic end of the storage electric push rod 8 located at the front side is controlled to extend, so that the block 9 at the front side extends outward along the radial direction of the wheel 2 until the block 9 at the front side contacts the bottom of the gully, so that the block 9 at the front side serves as the wheel 2 is at the support point at the bottom of the gully, and the wheel 2 is supported by the frontmost block 9 and the frontmost storage type electric push rod 8. Based on the view from right to left, the wheel 2 is controlled to continue to rotate counterclockwise, so that the frame 1 moves forward as a whole, so that the wheel 2 and the frontmost storage type electric push rod 8 rotate counterclockwise with the frontmost block 9 as the fulcrum, so that the wheel 2 crosses the gully, avoiding the wheel 2 from being stuck in the gully and being difficult to lift, thereby improving the speed of the single-wheel fertilizer spreader when passing through the gully, thereby improving the fertilization efficiency of the single-wheel fertilizer spreader. On this basis, when it is necessary to suspend fertilization and stop the single-wheel fertilizer spreader on a hillside, the weight Under the action of force, the single-wheel fertilizer spreader is easy to slide downward. For this reason, the telescopic end of the power-storage electric push rod 8 at the rear side can be controlled to extend so that the block 9 at the rear side is inserted into the soil, thereby preventing the wheel 2 from rotating. At the same time, the power-storage electric push rod 8 at the rear side and the block 9 at the rear side are used as support points for the wheel 2 on the soil to avoid the problem of the wheel 2 sliding down the slope. Then, the handle 7 end is put down and placed on the ground, so that the handle 7 end and the wheel 2 form a triangular support structure, so that the single-wheel fertilizer spreader can stay on the hillside anytime and anywhere, thereby improving the convenience and safety of the single-wheel fertilizer spreader in fertilizing on the hillside. When the operator controls the single-wheel fertilizer spreader to move to the highest point of the wheat planting area, the operator controls the frame 1 to turn the single-wheel fertilizer spreader 180 degrees, so that the wheel 2 is aligned between two adjacent rows of wheat, and then pushes the frame 1 down the hillside to apply fertilizer. During this process, the motor 201 can be controlled to stop actively rotating, and the wheel 2 can be actively rotated by relying on the dead weight of the single-wheel fertilizer spreader. When the single-wheel fertilizer spreader needs to stop moving, the telescopic end of the battery-powered electric push rod 8 located on the front side is controlled to extend, so that the block 9 located on the front side is inserted into the soil, thereby preventing the wheel 2 from actively rotating, so that the single-wheel fertilizer spreader stops moving in the downhill direction.

[0028] On this basis, when the fertilizer flows to the soil located at the rut, due to the hillside area, the fertilizer easily flows downward along the slope in the rut, so that the wheat on the downhill side has too much nutrients, while the wheat on the uphill side has insufficient nutrients, which leads to inconsistent wheat growth and affects wheat yield and quality. For this reason, when the wheel 2 rolls the soil between two rows of wheat, the block 9 is located in the through groove 2001 at this time, and by setting the length of the through groove 2001 along the circumferential direction of the wheel 2 to be greater than the length of the block 9 along the circumferential direction of the wheel 2, the soil in contact with the through groove 2001 is not rolled. In this way, a number of protrusions protruding from the bottom of the rut are intermittently formed on the rut. When the fertilizer When flowing in the rut, compared with conventional small fertilizer spreaders, the fertilizer is blocked from continuously flowing downward by the raised part, thereby avoiding the inconsistent growth of wheat on the uphill and downhill sides, so as to ensure relatively uniform wheat development when fertilizing on the hillside, improve wheat yield and quality, and improve the adaptability of the fertilizer spreader in fertilizing on hillside areas. Moreover, based on the view from front to back, the cross-sectional shape of the through groove 2001 is set to a trapezoid, so that the raised part of the soil forms a trapezoidal body with a wide bottom and a narrow upper side, thereby enhancing the stability of the raised part and avoiding the occurrence of the raised part tipping over. It is hereby explained that the operator should avoid kicking on the raised part of the soil when fertilizing.

[0029] Furthermore, due to the uneven flatness of the soil surface and the less soil in some places, when the wheel 2 rolls over this part of the soil, the height of the ridge formed by the through groove 2001 is relatively low, making it difficult to effectively block the fertilizer. For this reason, a slider 202 is added to the block 9. When the wheel 2 rotates until the through groove 2001 contacts the soil, the block 9 and the slider 202 are driven to rotate counterclockwise synchronously as viewed from right to left. As a result, when the slider 202 rotates counterclockwise and contacts the soil, the slider 202 is compressed and retracted upward into the adjacent block 9, and the spring telescopic rod 203 connected thereto is compressed and contracted. In this process, the inclined surface 20201 is simultaneously The wheel 2001 moves upward step by step, thereby slidingly contacting the rear inner wall of the through groove 2001 through the inclined surface 20201. Based on the right to left view, the block 9 rotates clockwise in the through groove 2001, and the storage electric push rod 8 rotates synchronously therewith. The torsion spring between the storage electric push rod 8 and the wheel 2 is compressed. At this time, there is less soil in the through groove 2001, and the formed ridge is lower. The block 9 rotates clockwise in the through groove 2001, so that the block 9 pushes the soil in the through groove 2001 to move toward the front inner wall of the through groove 2001. The block 9 and the through groove 2001 squeeze the ridge together, so that the height of the ridge is increased. And increase the stability of the raised part, so as to ensure that the height of the raised part can effectively block the fertilizer. On this basis, in the process of the block 9 and the through groove 2001 jointly squeezing the raised part, the front side and the rear side of the raised part are squeezed respectively by the first V-shaped surface 2002 and the second V-shaped surface 9001, so that the front side and the rear side of the raised part form a V-shaped concave surface. When the fertilizer flows to the raised part along the slope, the fertilizer is gathered to the middle of the raised part by the V-shaped concave surface of the raised part, so that the fertilizer is located in the middle of the rut as much as possible, so that the distance between the fertilizer and the wheat on both sides of the rut is relatively consistent, thereby making the growth state of the wheat as consistent as possible. As the wheel 2 continues to rotate, the battery-powered electric push rod 8, the block 9 and the slider 202 continue to rotate counterclockwise, so that the block 9 and the slider 202 are separated from the soil, and then the spring telescopic rod 203 is reset and extended, so that the slider 202 extends out of the block 9, and at the same time, the inclined surface 20201 is separated from the rear inner wall of the through groove 2001, so that under the action of the torsion spring between the battery-powered electric push rod 8 and the wheel 2, the battery-powered electric push rod 8, the block 9 and the slider 202 rotate counterclockwise as viewed from right to left, so that the block 9 fits with the rear inner wall of the through groove 2001, completing the reset movement of the battery-powered electric push rod 8, the block 9 and the slider 202.

[0030] Furthermore, since the single-wheel fertilizer spreader is heavy and is in an uphill state, there is a possibility that the wheel 2 may slip during rotation. In order to reduce the occurrence of this problem, an anti-skid protrusion 204 is provided on the outer surface of the wheel 2 to increase the contact area between the wheel 2 and the soil, thereby increasing the grip of the wheel 2 and reducing the slipping of the wheel 2. In addition, when the wheel 2 rolls the soil, the anti-skid protrusion 204 is simultaneously driven to roll the soil, so that a pit with the same shape as the anti-skid protrusion 204 is formed at the bottom of the rut. In this way, when the fertilizer passes through the pit at the bottom of the rut, part of the fertilizer will fall into the pit, so that the fertilizer is evenly distributed at the bottom of the rut, while reducing the amount of fertilizer flowing downward along the slope. Example 2

[0031] On the basis of Example 1, Figure 5 and Figure 6 As shown, it also includes a limiting wheel 301; the middle part of the discharge pipe 4 is fixedly connected to the limiting wheel 301; five protruding blocks 30101 are arranged on the limiting wheel 301, and the protruding blocks 30101 are all arranged in a spiral inclined shape; a gap 30102 is formed between each two adjacent protruding blocks 30101; the width of the gap 30102 is greater than the width of the slider 202.

[0032] It also includes a stirring blade 302 ; two stirring blades 302 are fixedly connected to the upper side of the discharge pipe 4 ; and the two stirring blades 302 are both located in the storage box 3 .

[0033] When the block 9 reciprocates to squeeze the soil in the through groove 2001, due to the presence of stones in the soil, the stones are easily stuck between the block 9 and the inner wall of the rear side of the through groove 2001, thereby affecting the normal resetting of the block 9, and then affecting the subsequent squeezing of the soil in the through groove 2001 by the block 9. For this reason, when the block 9 and the slider 202 rotate to the lower side of the limiting wheel 301, the bottom of the adjacent gap 30102 is just aligned with the slider 202. With the view from right to left as the reference, as the wheel 2 continues to drive the block 9 and the slider 202 to rotate counterclockwise, the slider 202 contacts the protruding block 30101 on the left side of the gap 30102. At this time, the movement of the slider 202 and the stopper 9 is blocked by the protruding block 30101 and stops rotating counterclockwise, while the wheel 2 continues to rotate counterclockwise, thereby increasing the gap between the stopper 9 and the inner wall of the rear side of the through groove 2001 until the stopper 9 fits the inner wall of the front side of the through groove 2001. The torsion spring between the battery-powered electric push rod 8 and the wheel 2 is compressed, and at this time the stopper 9 is tilted upward, so that the stones in the gap fall downward along the tilted direction of the stopper 9 under the action of their own weight, thereby realizing the cleaning of the stones stuck between the stopper 9 and the through groove 2001, ensuring that the subsequent stopper 9 can continuously clean the soil in the through groove 2001 As the wheel 2 continues to rotate counterclockwise, the block 9 and the slider 202 continue to rotate counterclockwise, so that the slider 202 squeezes the protruding block 30101 on the left side of the gap 30102. Since the protruding block 30101 is spirally inclined, the limiting wheel 301 rotates clockwise as viewed from top to bottom, so that the slider 202 moves upward in the gap 30102 until the slider 202 is separated from the protruding block 30101 on the left side of the gap 30102. In this way, the block 9 and the slider 202 are reset again under the reset of the torsion spring between the storage electric push rod 8 and the wheel 2, and as the limiting wheel 301 As the wheel 2 continues to drive the slider 202 to rotate, the limiting wheel 301 can continuously rotate clockwise, thereby driving the discharge pipe 4 and the stirring blade 302 to continuously rotate clockwise, and then the stirring blade 302 rotates clockwise in the storage box 3. When granular solid fertilizer is stored in the storage box 3, the solid fertilizer at the bottom of the storage box 3 is continuously stirred by the stirring blade 302, so that the solid fertilizer at the bottom of the storage box 3 is always in a moving state, thereby preventing the solid fertilizer from being blocked at the through hole 4001 and affecting the normal discharge of the solid fertilizer.

[0034] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A wheat fertilizer spreader suitable for use on complex terrain, comprising a frame (1) and a handle (7); two handles (7) are fixedly connected to the rear side of the frame (1) and are symmetrical to each other; the feature is that: The invention also comprises a wheel (2), a power assembly, a power storage type electric push rod (8), a block (9) and a fertilizing assembly; the front side of the vehicle frame (1) is rotatably connected to the wheel (2); the wheel (2) is provided with a plurality of through slots (2001); the wheel (2) is connected to a plurality of power storage type electric push rods (8) via a torsion spring; each power storage type electric push rod (8) is fixedly connected to a block (9) at its telescopic end for facilitating the wheel (2) to cross a gully; each block (9) can pass through an adjacent through slot (2001) and be in sliding contact therewith; the vehicle frame (1) is provided with a power assembly; the wheel (2) is driven to rotate by the power assembly; and the vehicle frame (1) is provided with a fertilizing assembly for fertilizing wheat.

2. A wheat fertilizer spreader suitable for complex terrain according to claim 1, characterized in that: The power assembly comprises a motor (201) and a battery (6); the motor (201) is fixedly connected to the front side of the vehicle frame (1); the output shaft of the motor (201) is fixedly connected to the wheel (2); the battery (6) is fixedly connected to the vehicle frame (1); and the battery (6) and the motor (201) are connected via a wire.

3. A wheat fertilizer spreader suitable for complex terrain according to claim 2, characterized in that: The fertilization assembly comprises a material storage box (3), a material discharge pipe (4) and a valve (5); the material storage box (3) is arranged in the middle of the frame (1); a material feed port (3001) is provided on the upper side of the material storage box (3); the material discharge pipe (4) is connected to the lower side of the material storage box (3); a plurality of through holes (4001) are provided on the material discharge pipe (4); the through holes (4001) are communicated with the inside of the material storage box (3); and the material discharge pipe (4) is communicated with the valve (5).

4. A wheat fertilizer spreader suitable for complex terrain according to claim 2, characterized in that: The length of the through groove (2001) along the circumferential direction of the wheel (2) is set to be greater than the length of the stopper (9) along the circumferential direction of the wheel (2).

5. A wheat fertilizer spreader suitable for complex terrain according to claim 4, characterized in that: The cross-sectional shape of the through groove (2001) is set to be a trapezoid.

6. A wheat fertilizer spreader suitable for complex terrain according to claim 5, characterized in that: It also includes a slider (202) and a spring telescopic rod (203); each block (9) is slidably connected to a slider (202), and the slider (202) protrudes from the outer surface of the wheel (2); a spring telescopic rod (203) is fixedly connected between each slider (202) and an adjacent block (9); each slider (202) is provided with an inclined surface (20201); and the inclined surface (20201) is in sliding contact with an adjacent through groove (2001).

7. A wheat fertilizer spreader suitable for complex terrain according to claim 6, characterized in that each The through grooves (2001) are each provided with a first V-shaped surface (2002); each stopper (9) is provided with a second V-shaped surface (9001); and two adjacent first V-shaped surfaces (2002) and second V-shaped surfaces (9001) are provided to protrude towards each other.

8. A wheat fertilizer spreader suitable for complex terrain according to claim 6, characterized in that: A plurality of anti-skid protrusions (204) are arranged on the outer surface of the wheel (2) along the circumferential direction.

9. A wheat fertilizer spreader suitable for complex terrain according to claim 8, characterized in that: The invention also comprises a limiting wheel (301); a limiting wheel (301) is fixedly connected to the middle of the discharge pipe (4) to prevent stones from being stuck between the wheel (2) and the stopper (9); five protruding blocks (30101) are arranged on the limiting wheel (301), and the protruding blocks (30101) are all arranged in a spiral inclined shape; a gap (30102) is formed between every two adjacent protruding blocks (30101); and the width of the gap (30102) is greater than the width of the slider (202).

10. A wheat fertilizer spreader suitable for complex terrain according to claim 9, characterized in that: It also includes stirring blades (302); a plurality of stirring blades (302) for preventing fertilizer from settling are fixedly connected to the upper side of the discharge pipe (4); and the plurality of stirring blades (302) are all located in the storage box (3).

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