Soil improvement device and method for high-standard farmland construction

Abstract

The present invention relates to a soil improvement device and method for high-standard farmland construction, belonging to the technical field of soil improvement; the device comprises a loader body, a material discharge port is provided at the rear end of the bucket of the loader body, and an extension plate and a material receiving tray distributed up and down are fixedly provided at the tail end of the loader body, a spherical groove is provided on the extension plate, a swinging ball is rotatably provided inside the spherical groove, a first motor is fixedly provided at the upper end of the swinging ball, and a turntable is fixedly provided at the output shaft of the first motor; a connecting rod is provided at the lower end of the swinging ball, a baffle is fixedly provided at the rear end of the connecting rod, and the baffle is provided on the outside of the turntable; the inner bottom surface of the material receiving tray is kept inclined, and a material return mechanism is provided between the lowest point inside the material receiving tray and the bucket; the problem of uneven fertilizer spreading in the current fertilizing device used for soil improvement is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil improvement, and in particular relates to a soil improvement device and method for high-standard farmland construction. Background Art

[0002] High-standard farmland refers to concentrated, contiguous farmland developed through land reclamation and construction, featuring complete facilities, high and stable yields, a favorable ecological environment, and strong disaster resistance, compatible with modern agricultural production and management methods. Its construction encompasses multiple projects, including land leveling, irrigation and drainage, field roads, farmland protection and ecological environment maintenance, and farmland power transmission and distribution. These projects aim to improve land quality and agricultural production efficiency, thereby ensuring national food security. Soil improvement, as a key link, plays a vital role in increasing soil fertility, optimizing soil structure, and promoting crop growth. Fertilization is one of the most important means of soil improvement. Accurate and even fertilization ensures a balanced nutrient content in the soil, providing a favorable growth environment for crops.

[0003] In the current high-standard farmland construction process, fertilization devices are widely used in soil improvement work. However, existing fertilization devices have many disadvantages. Common fertilization devices usually rely on the centrifugal force generated by the rotation of the turntable to achieve the effect of evenly spreading the fertilizer. However, in actual operation, due to the centrifugal force of the rotation of the turntable, during the diffusion process, the fertilizer close to the loader body often falls on the ground where the loader is moving. This not only causes a waste of fertilizer, but also makes the fertilizer unevenly distributed in the farmland. Excessive fertilizer in some areas may cause seedling burn, while insufficient fertilizer in some areas cannot meet the growth needs of crops, seriously affecting the effect of soil improvement and the yield and quality of crops.

[0004] Furthermore, farmland terrain is complex and often uneven. When operating on such surfaces, the spreader tilts with the undulations of the ground. This causes the rotating disc to tilt in the same direction, preventing fertilizer from reaching the intended locations. This further exacerbates uneven spreading and makes it difficult to meet the stringent precision fertilization requirements of high-standard farmland construction.

[0005] To this end, we propose a soil improvement device and method for high-standard farmland construction. Summary of the Invention

[0006] The present invention overcomes the deficiencies of the prior art and provides a soil improvement device and method for high-standard farmland construction, thereby solving the problem of uneven fertilizer spreading in current fertilizing devices used for soil improvement.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0008] A soil improvement device for high-standard farmland construction comprises a loader body, a material discharge port is provided at the rear end of the truck bed of the loader body, and an extension plate and a material receiving tray are fixedly provided at the tail end of the loader body, a spherical groove is provided on the extension plate, a swinging ball is rotatably provided inside the spherical groove, a first motor is fixedly provided at the upper end of the swinging ball, and a turntable is fixedly provided at the output shaft of the first motor; a connecting rod is provided at the lower end of the swinging ball, a baffle is fixedly provided at the rear end of the connecting rod, and the baffle is provided on the outside of the turntable; the inner bottom surface of the material receiving tray is kept inclined, and a material return mechanism is provided between the lowest point inside the material receiving tray and the truck bed.

[0009] Furthermore, a baffle is slidably provided at the discharge port at the rear end of the bucket of the loader body, a conveyor belt is provided below the discharge port, and a turntable is provided below the rear side of the conveyor belt.

[0010] Furthermore, the swinging ball is a spherical structure, and the outer spherical surface of the swinging ball maintains rotational contact with the inner wall of the spherical groove; an inwardly concave mounting groove is provided at the upper end of the swinging ball, and the first motor is fixedly installed inside the mounting groove, and the output shaft of the first motor is vertically upward; the turntable is a horizontally arranged circular plate structure, and the output shaft of the first motor is fixedly connected to the center of the lower end surface of the turntable, and a circle of circular arrayed shift bars is fixedly provided on the upper end surface of the turntable, and the shift bars are extended radially along the turntable.

[0011] Furthermore, the spherical groove is provided at the rear end of the upper end surface of the extension plate, and a connecting groove is provided at the inner bottom surface of the spherical groove, and the spherical groove is connected with the lower end surface of the extension plate through the connecting groove; a vertical connecting column is fixedly provided at the lower end of the swinging ball, and the connecting column passes through the connecting groove on the bottom surface of the spherical groove and extends to the outer side of the lower end of the extension plate; a left and right horizontal rotating shaft is fixedly provided at the lower end of the connecting column.

[0012] Furthermore, the connecting rod is arranged below the swinging ball, and the connecting rod is a T-shaped rod structure, including a transverse section and a longitudinal section. The transverse section is horizontally arranged along the left and right directions, and the longitudinal section is horizontally arranged along the front and back directions. The rear end of the longitudinal section is fixedly connected to the middle part of the transverse section; the rotating shaft at the lower end of the connecting column is rotationally connected to the middle part of the longitudinal section of the connecting rod; a counterweight block is fixedly arranged at both ends of the transverse section of the connecting rod.

[0013] Furthermore, the baffle cover is a vertically arranged C-shaped block structure, and the C-shaped opening of the baffle cover faces the rear side; the front end of the longitudinal section of the connecting rod is fixedly connected to the lower end of the front inner wall of the baffle cover; a channel is provided inside the baffle cover, and the lower end opening of the channel is connected to the lower end face of the baffle cover; a C-shaped collecting chamber is provided at the upper end of the inner wall of the baffle cover, and the collecting chamber is connected to the inside of the channel; an arc-shaped guide plate is provided at the lower end of the inside of the collecting chamber, and the upper end of the arc-shaped guide plate is inclined toward the inside of the collecting chamber.

[0014] Furthermore, the receiving tray is a cylindrical structure with an open upper end. The receiving tray is arranged below the baffle, and the front end of the receiving tray is fixedly connected to the rear end of the loader body.

[0015] Furthermore, the material return mechanism includes a recovery pipe, a second motor, and a spiral blade; a recovery pipe is fixedly arranged at the rear end of the truck bed of the loader body, the upper end of the recovery pipe is connected to the interior of the truck bed, and the lower end of the recovery pipe extends to the lowest point inside the receiving tray; a spiral blade is rotated inside the recovery pipe; a first mounting seat is fixedly arranged at the outer edge of the lower end surface of the receiving tray, and a second motor is fixedly arranged on the first mounting seat, and the output shaft of the second motor extends into the interior of the receiving tray and is fixedly connected to the lower end of the rotating shaft of the spiral blade.

[0016] Furthermore, a second mounting seat is fixedly provided at the center of the lower end surface of the receiving tray, and a driven pulley is rotatably provided on the second mounting seat; a driving pulley is fixedly provided on the output shaft of the second motor, and the driving pulley and the driven pulley are connected by a belt; an L-shaped knocking rod is fixedly provided on the driven pulley, and the knocking rod includes a transverse rod and a longitudinal rod perpendicular to each other, the longitudinal rod is fixedly provided at the axis of the driven pulley, and an angle is provided between the transverse section and the lower end surface of the receiving tray, and a knocking ball is fixedly provided on the end of the transverse rod away from the longitudinal rod through a spring.

[0017] A method for using a soil improvement device for high-standard farmland construction includes the following steps:

[0018] Step 1: Load the granular fertilizer for soil improvement into the bucket of the loader body, then start the conveyor belt at the discharge port, and slide open the baffle at the discharge port at the same time. The flow rate of the granular fertilizer output to the outside of the bucket is controlled by controlling the opening of the baffle. When the granular fertilizer falls onto the conveyor belt, the conveyor belt gives the granular fertilizer a backward acceleration, so that when the granular fertilizer detaches from the conveyor belt, the granular fertilizer falls to the center position of the upper end surface of the turntable in the form of a parabola.

[0019] In step 2, the first motor inside the swing ball drives the turntable to rotate at high speed; when the granular fertilizer falls onto the turntable, it is thrown outward along the center of the turntable by the pick on the turntable in a centrifugal force; a portion of the granular fertilizer passes through the C-shaped opening of the shield and eventually falls into the farmland, another portion of the granular fertilizer is blocked by the inner wall of the shield and falls into the receiving tray, and the last portion of the granular fertilizer hits the arc-shaped guide vane inside the collecting chamber, and the granular fertilizer enters the collecting chamber from the bottom of the arc-shaped guide vane along its curvature, and finally falls into the receiving tray through the channel;

[0020] In step three, the granular fertilizers that fall into the receiving tray are accumulated at the lowest point inside the receiving tray, and the second motor drives the spiral blade to rotate inside the recovery pipe, and the spiral blade re-inputs the granular fertilizers accumulated inside the receiving tray into the bucket of the loading vehicle body; the second motor simultaneously drives the active pulley to rotate, and the active pulley drives the driven pulley to rotate through the belt, and the driven pulley drives the knocking rod to rotate, because the transverse section of the knocking rod is arranged at an angle with the lower end surface of the receiving tray, the knocking ball on the knocking rod intermittently knocks the lower end surface of the receiving tray, so that the granular fertilizers adhered to the bottom surface of the receiving tray roll down to the lowest point inside the receiving tray;

[0021] Step 4: When the loader body moves to form a situation where one side is higher than the other side, the extension plate is tilted along with the loader body. The swing ball remains vertical under the action of gravity, the turntable remains horizontal, and the shield remains vertical. The turntable can evenly spread the granular fertilizer into the farmland.

[0022] The beneficial effects of the present invention compared to the prior art are:

[0023] (1) This device solves the problem of uneven distribution of granular fertilizers caused by the centrifugal force of the turntable in traditional fertilizing devices through its unique design. After being accelerated by the conveyor belt, the granular fertilizers fall precisely to the center of the turntable in a parabolic shape. Under the action of the high-speed rotation of the turntable and the action of the lever, they are thrown out in a more reasonable parabolic shape. At the same time, the C-shaped shield and arc-shaped guide vane collect and guide some of the granular fertilizers that might have been scattered on the ground where the loader is walking, avoiding the waste of granular fertilizers and allowing the granular fertilizers to be spread more evenly on the farmland, greatly improving the uniformity of fertilizer spreading, ensuring the balance of soil nutrients, providing a good soil environment for crop growth, and helping to improve crop yield and quality.

[0024] (2) In view of the complex and changeable farmland terrain, this device is designed with a special adaptive adjustment structure. Since the top of the spherical block is hollow and the bottom is solid, the center of gravity is always perpendicular to the ground. When the loader is traveling on an uneven road and the extension plate tilts, the spherical block slides relative to the extension plate in the spherical groove under the action of gravity. This ensures that the parabolic trajectory of the granular fertilizer when it is thrown by the turntable is relatively stable regardless of the undulations of the farmland terrain. This ensures that the granular fertilizer can be accurately spread to the preset position under different terrain conditions, meeting the requirements of high-standard farmland construction for precise fertilization.

[0025] (3) The device is equipped with a complete granular fertilizer recovery system. Granular fertilizers that fall into the receiving tray can be transported back to the inside of the loading truck through the recovery pipe and the spiral blades, driven by the second motor, to achieve the recycling of granular fertilizers and reduce the additional loss and replenishment costs of granular fertilizers. At the same time, the second motor drives the knocking ball through the belt to intermittently knock on the bottom of the receiving tray, causing the granular fertilizers adhered to the receiving tray to roll to the lowest point, facilitating the efficient transportation of the spiral blades, further improving the efficiency of granular fertilizer recovery, which is both environmentally friendly and economical, and conforms to the concept of high-standard farmland construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the overall structure of the present invention Figure 2 ;

[0029] Figure 3 It is an exploded view between the extension plate and the swing ball;

[0030] Figure 4 It is a schematic diagram of the structure of the receiving tray after being cut;

[0031] Figure 5 It is a schematic diagram of the connection between the baffle cover, the receiving tray, and the material return mechanism;

[0032] Figure 6 is a schematic diagram of the connection between the swing ball, the first motor, and the turntable;

[0033] Figure 7 yes Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0034] Figure 8 This is a diagram showing the connection between the shield, connecting rod, swing ball, and turntable. Figure 1 ;

[0035] Figure 9This is a diagram showing the connection between the shield, connecting rod, swing ball, and turntable. Figure 2 ;

[0036] Figure 10 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0037] Among them, 1 is the loader body, 2 is the turntable, 3 is the extension plate, 4 is the spherical groove, 5 is the conveyor belt, 6 is the swing ball, 7 is the baffle, 9 is the baffle cover, 10 is the collecting chamber, 11 is the connecting column, 12 is the connecting rod, 13 is the counterweight block, 14 is the arc guide plate, 15 is the channel, 16 is the receiving tray, 17 is the recovery pipe, 18 is the first mounting seat, 19 is the second mounting seat, 20 is the spiral blade, 21 is the driving pulley, 22 is the driven pulley, 23 is the knocking rod, 24 is the shrapnel, and 25 is the knocking ball. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0039] like Figure 1 As shown in FIG10 , the present invention provides a soil improvement device for high-standard farmland construction, comprising a loader body 1, a discharge port being provided at the rear end of the truck bed of the loader body 1, and an upper and lower extension plate 3 and a receiving tray 16 being fixedly provided at the tail end of the loader body 1, a spherical groove 4 being provided on the extension plate 3, a swinging ball 6 being rotatably provided inside the spherical groove 4, a first motor being fixedly provided at the upper end of the swinging ball 6, and a turntable 2 being fixedly provided at the output shaft of the first motor; a connecting rod 12 being provided at the lower end of the swinging ball 6, a baffle 9 being fixedly provided at the rear end of the connecting rod 12, and the baffle 9 being provided on the outside of the turntable 2; the inner bottom surface of the receiving tray 16 is kept inclined, and a material return mechanism is provided between the lowest point inside the receiving tray 16 and the truck bed.

[0040] Granular fertilizer is loaded inside the bucket of the loader body 1. A baffle 7 is slidably installed at the discharge port at the rear end of the bucket of the loader body 1. The baffle 7 is slid to adjust the opening of the discharge port, thereby adjusting the output flow rate of the granular fertilizer. A conveyor belt 5 is provided below the discharge port. The granular fertilizer inside the bucket is output to the top of the conveyor belt 5 through the discharge port, and the granular fertilizer is spilled backward through the conveyor belt 5. The extension plate 3 is horizontally arranged along the front-to-back direction. The spherical groove 4 is provided at the rear end of the upper end surface of the extension plate 3. A connecting groove is provided on the inner bottom surface of the spherical groove 4. The spherical groove 4 maintains communication with the lower end surface of the extension plate 3 through the connecting groove.

[0041] The swinging ball 6 is a spherical structure, and the outer spherical surface of the swinging ball 6 maintains rotational contact with the inner wall of the spherical groove 4. A concave mounting groove is provided at the upper end of the swinging ball 6, and the first motor is fixedly installed inside the mounting groove, and the output shaft of the first motor is vertically upward. The turntable 2 is a horizontally arranged circular plate-shaped structure. The turntable 2 is arranged below the rear side of the conveyor belt 5. The output shaft of the first motor is fixedly connected to the center of the lower end face of the turntable 2, and the turntable 2 is driven to rotate by the first motor. A circle of shift bars arranged in a circular array is fixedly provided on the upper end face of the turntable 2, and the shift bars are extended along the radial direction of the turntable 2.

[0042] A vertical connecting column 11 is fixedly provided at the lower end of the swinging ball 6. The connecting column 11 passes through the connecting groove on the bottom surface of the spherical groove 4 and extends to the outer side of the lower end of the extension plate 3. A left-right horizontal rotation axis is fixedly provided at the lower end of the connecting column 11. The connecting rod 12 is provided below the swinging ball 6. The connecting rod 12 is a T-shaped rod structure, including a transverse section and a longitudinal section. The transverse section is horizontally provided along the left-right direction, and the longitudinal section is horizontally provided along the front-back direction. The rear end of the longitudinal section is fixedly connected to the middle part of the transverse section. The rotation axis at the lower end of the connecting column 11 is rotationally connected to the middle part of the longitudinal section of the connecting rod 12. A counterweight block 13 is fixedly provided at each end of the transverse section of the connecting rod 12.

[0043] The shield 9 is a vertically arranged C-shaped block structure, and the C-shaped opening of the shield 9 faces the rear side. An avoidance groove is provided on the rear side wall of the shield 9, and the rear end of the extension plate 3 extends to the inside of the shield 9 through the avoidance groove. The front end of the longitudinal section of the connecting rod 12 is fixedly connected to the lower end of the front inner wall of the shield 9. A C-shaped channel 15 is provided inside the shield 9, and the lower end opening of the channel 15 is connected to the lower end face of the shield 9. A C-shaped collecting chamber 10 is provided at the upper end of the inner wall of the shield 9, and the collecting chamber 10 is connected to the inside of the channel 15; the lower end of the collecting chamber 10 is flush with the upper end face of the turntable 2. An arc-shaped guide vane 14 is provided at the lower end of the inner part of the collecting chamber 10, and the upper end of the arc-shaped guide vane 14 is inclined toward the inner side of the collecting chamber 10.

[0044] Due to the arrangement of the connecting rod 12, the counterweight 13 and the shield 9, the center of gravity of the swinging ball 6 is always located on its vertical axis. In this way, no matter how the loader body 1 and the extension plate 3 are tilted, the swinging ball 6 always remains in a vertical state inside the spherical groove 4, the turntable 2 always remains in a horizontal state, and the shield 9 is also always in a vertical state.

[0045] The receiving tray 16 is a cylindrical structure with an open upper end. The receiving tray 16 is arranged below the baffle 9 , and the front end of the receiving tray 16 is fixedly connected to the rear end of the loader body 1 .

[0046] The material return mechanism includes a recovery pipe 17, a second motor, and a spiral blade 20. A recovery pipe 17 is fixedly provided at the rear end of the bucket of the loading vehicle body 1. The upper end of the recovery pipe 17 is connected to the inside of the bucket, and the lower end of the recovery pipe 17 extends to the lowest point inside the receiving tray 16. The axis of the recovery pipe 17 remains inclined, and an angle is set between the axis of the recovery pipe 17 and the axis of the receiving tray 16. A spiral blade 20 is rotatably provided inside the recovery pipe 17. A first mounting seat 18 is fixedly provided at the outer edge of the lower end surface of the receiving tray 16, and a second motor is fixedly provided on the first mounting seat 18. The axis of the output shaft of the second motor coincides with the axis of the recovery pipe 17. The output shaft of the second motor extends into the inside of the receiving tray 16, and the output shaft of the second motor is fixedly connected to the lower end of the rotating shaft of the spiral blade 20. The spiral blade 20 is driven to rotate inside the recovery pipe 17 by the second motor.

[0047] A second mounting base 19 is also fixedly mounted at the center of the lower end face of the receiving tray 16, on which a driven pulley 22 is rotatably mounted. A driving pulley 21 is fixedly mounted on the output shaft of the second motor, and the driving pulley 21 and the driven pulley 22 are connected by a belt. An L-shaped knocking rod 23 is fixedly mounted on the driven pulley 22. The knocking rod 23 includes a mutually perpendicular transverse rod and a longitudinal rod. The longitudinal rod is fixedly mounted at the axis of the driven pulley 22, with an angle between the transverse section and the lower end face of the receiving tray 16. A knocking ball 25 is fixedly mounted on the end of the transverse rod away from the longitudinal rod via a spring 24.

[0048] The present invention also provides a method for using a soil improvement device for high-standard farmland construction, the steps of which are as follows:

[0049] Step 1: Load the granular fertilizer for soil improvement into the bucket of the loader body 1, then start the conveyor belt 5 at the discharge port, and slide open the baffle 7 at the discharge port at the same time, and control the flow rate of the granular fertilizer output to the outside of the bucket by controlling the opening of the baffle 7; when the granular fertilizer falls onto the conveyor belt 5, the conveyor belt 5 gives the granular fertilizer a backward acceleration, so that when the granular fertilizer detaches from the conveyor belt 5, the granular fertilizer falls to the center position of the upper end surface of the turntable 2 in the form of a parabola.

[0050] In step two, the first motor inside the swinging ball 6 drives the turntable 2 to rotate at high speed. When the granular fertilizer falls onto the turntable 2, it is thrown outward along the center of the turntable 2 by the centrifugal force of the strip on the turntable 2. Some of the granular fertilizer passes through the C-shaped opening of the baffle 9 and eventually falls into the farmland. Another part of the granular fertilizer is blocked by the inner wall of the baffle 9 and falls into the receiving tray 16. The last part of the granular fertilizer hits the curved guide blade 14 inside the collection chamber 10. The granular fertilizer enters the collection chamber 10 from the bottom of the curved guide blade 14 along its curvature, and finally falls into the receiving tray 16 through the channel 15.

[0051] In step three, the granular fertilizers that fall into the receiving tray 16 are accumulated at the lowest point inside the receiving tray 16. The second motor drives the spiral blade 20 to rotate inside the recovery pipe 17. The spiral blade 20 re-inputs the granular fertilizers accumulated inside the receiving tray 16 into the truck bucket of the loader body 1. The second motor simultaneously drives the driving pulley 21 to rotate, and the driving pulley 21 drives the driven pulley 22 to rotate through the belt, and the driven pulley 22 drives the knocking rod 23 to rotate. Since the transverse section of the knocking rod 23 is set at an angle with the lower end surface of the receiving tray 16, the knocking ball 25 on the knocking rod 23 intermittently knocks the lower end surface of the receiving tray 16, causing the granular fertilizers adhered to the bottom surface of the receiving tray 16 to roll to the lowest point inside the receiving tray 16.

[0052] Step 4. When the loader body 1 moves to form a situation where one side is higher than the other side, the extension plate 3 is tilted along with the loader body 1. The swing ball 6 remains vertical under the action of gravity, the turntable 2 remains horizontal, and the shield 9 remains vertical. The turntable 2 can evenly spread the granular fertilizer into the farmland.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A soil improvement device for high-standard farmland construction, characterized by: The invention comprises a loader body (1), a material discharge port is provided at the rear end of the bucket of the loader body (1), an extension plate (3) and a material receiving plate (16) are fixedly provided at the rear end of the loader body (1), the extension plate (3) is provided with a spherical groove (4), a swinging ball (6) is rotatably provided inside the spherical groove (4), a first motor is fixedly provided at the upper end of the swinging ball (6), and a turntable (2) is fixedly provided at the output shaft of the first motor; a connecting rod (12) is provided at the lower end of the swinging ball (6), a baffle (9) is fixedly provided at the rear end of the connecting rod (12), and the baffle (9) is provided on the outer side of the turntable (2); the inner bottom surface of the material receiving plate (16) is kept inclined, and a material return mechanism is provided between the lowest point inside the material receiving plate (16) and the loader bucket; a circle of shifting bars arranged in a circular array is fixedly provided on the upper end surface of the turntable (2), and the shifting bars are extended along the radial direction of the turntable (2); The spherical groove (4) is provided at the rear end of the upper end surface of the extension plate (3), and a connecting groove is provided at the inner bottom surface of the spherical groove (4), and the spherical groove (4) is connected with the lower end surface of the extension plate (3) through the connecting groove; a vertical connecting column (11) is fixedly provided at the lower end of the swing ball (6), and the connecting column (11) passes through the connecting groove on the bottom surface of the spherical groove (4) and extends to the outer side of the lower end of the extension plate (3); a left-right horizontal rotation axis is fixedly provided at the lower end of the connecting column (11); The connecting rod (12) is arranged below the swinging ball (6). The connecting rod (12) is a T-shaped rod structure, including a transverse section and a longitudinal section. The transverse section is arranged horizontally along the left-right direction, and the longitudinal section is arranged horizontally along the front-back direction. The rear end of the longitudinal section is fixedly connected to the middle part of the transverse section. The rotation axis at the lower end of the connecting column (11) is rotationally connected to the middle part of the longitudinal section of the connecting rod (12). A counterweight block (13) is fixedly arranged at each end of the transverse section of the connecting rod (12).

2. The soil improvement device for high-standard farmland construction according to claim 1, characterized in that: A baffle (7) is slidably provided at a discharge port at the rear end of the bucket of the loading vehicle body (1), a conveyor belt (5) is provided below the discharge port, and a turntable (2) is provided below the rear side of the conveyor belt (5).

3. The soil improvement device for high-standard farmland construction according to claim 2, characterized in that: The swing ball (6) is a spherical structure, and the outer spherical surface of the swing ball (6) maintains rotational contact with the inner wall of the spherical groove (4); a concave mounting groove is provided at the upper end of the swing ball (6), and the first motor is fixedly provided inside the mounting groove, and the output shaft of the first motor is vertically upward; the turntable (2) is a horizontally arranged circular plate structure, and the output shaft of the first motor is fixedly connected to the center of the lower end surface of the turntable (2).

4. The soil improvement device for high-standard farmland construction according to claim 1, characterized in that: The shield (9) is a vertically arranged C-shaped block structure, and the C-shaped opening of the shield (9) faces the rear side; the front end of the longitudinal section of the connecting rod (12) is fixedly connected to the lower end of the front inner wall of the shield (9); a channel (15) is provided inside the shield (9), and the lower end opening of the channel (15) is connected to the lower end surface of the shield (9); a C-shaped collecting chamber (10) is provided at the upper end of the inner wall of the shield (9), and the collecting chamber (10) is connected to the inside of the channel (15); an arc-shaped guide plate (14) is provided at the lower end of the inside of the collecting chamber (10), and the upper end of the arc-shaped guide plate (14) is inclined toward the inside of the collecting chamber (10).

5. The soil improvement device for high-standard farmland construction according to claim 1, characterized in that: The receiving tray (16) is a cylindrical structure with an open upper end. The receiving tray (16) is arranged below the baffle (9), and the front end of the receiving tray (16) is fixedly connected to the rear end of the loading vehicle body (1).

6. The soil improvement device for high-standard farmland construction according to claim 4, characterized in that: The material return mechanism comprises a recovery pipe (17), a second motor, and a spiral blade (20); a recovery pipe (17) is fixedly provided at the rear end of the bucket of the loading vehicle body (1), an upper end of the recovery pipe (17) is connected to the interior of the bucket, and a lower end of the recovery pipe (17) extends to the lowest point inside the receiving tray (16); a spiral blade (20) is rotatably provided inside the recovery pipe (17); a first mounting seat (18) is fixedly provided at the outer edge of the lower end surface of the receiving tray (16), a second motor is fixedly provided on the first mounting seat (18), and an output shaft of the second motor extends into the interior of the receiving tray (16) and is fixedly connected to the lower end of the rotating shaft of the spiral blade (20).

7. The soil improvement device for high-standard farmland construction according to claim 6, characterized in that: A second mounting seat (19) is fixedly provided at the center of the lower end surface of the receiving tray (16), and a driven pulley (22) is rotatably provided on the second mounting seat (19); a driving pulley (21) is fixedly provided on the output shaft of the second motor, and the driving pulley (21) and the driven pulley (22) are connected by a belt; an L-shaped knocking rod (23) is fixedly provided on the driven pulley (22), and the knocking rod (23) includes a transverse rod and a longitudinal rod perpendicular to each other, and the longitudinal rod is fixedly provided at the axis of the driven pulley (22), and an angle is provided between the transverse section and the lower end surface of the receiving tray (16), and a knocking ball (25) is fixedly provided at one end of the transverse rod away from the longitudinal rod through a shrapnel (24).

8. The method for using the soil improvement device for high-standard farmland construction according to claim 7, characterized in that: The steps include: Step 1: Load the granular fertilizer for soil improvement into the bucket of the loading vehicle body (1), then start the conveyor belt (5) at the discharge port, and at the same time slide open the baffle (7) at the discharge port, and control the flow rate of the granular fertilizer output to the outside of the bucket by controlling the opening of the baffle (7); when the granular fertilizer falls onto the conveyor belt (5), the conveyor belt (5) gives the granular fertilizer a backward acceleration, so that when the granular fertilizer detaches from the conveyor belt (5), the granular fertilizer falls to the center position of the upper end surface of the turntable (2) in the form of a parabola; Step 2: The first motor inside the swing ball (6) drives the turntable (2) to rotate at high speed; when the granular fertilizer falls onto the turntable (2), it is thrown outward along the center of the turntable (2) by the strip on the turntable (2) in a centrifugal force; a part of the granular fertilizer passes through the C-shaped opening of the shield (9) and eventually falls into the farmland, another part of the granular fertilizer is blocked by the inner wall of the shield (9) and falls into the inside of the receiving tray (16), and the last part of the granular fertilizer hits the arc-shaped guide piece (14) inside the collecting chamber (10), and the granular fertilizer enters the inside of the collecting chamber (10) from the bottom of the arc-shaped guide piece (14) along its arc, and finally falls into the inside of the receiving tray (16) through the channel (15); Step three, the granular fertilizers that fall into the receiving tray (16) are accumulated at the lowest point inside the receiving tray (16), and the second motor drives the spiral blade (20) to rotate inside the recovery pipe (17), and the spiral blade (20) re-inputs the granular fertilizers accumulated inside the receiving tray (16) into the bucket of the loading vehicle body (1); the second motor drives the driving pulley (21) to rotate at the same time, and the driving pulley (21) drives the driven pulley (22) to rotate through the belt, and the driven pulley (22) drives the knocking rod (23) to rotate. Since the transverse section of the knocking rod (23) is provided with an angle with the lower end surface of the receiving tray (16), the knocking ball (25) on the knocking rod (23) intermittently knocks the lower end surface of the receiving tray (16), so that the granular fertilizers adhered to the bottom surface of the receiving tray (16) roll down to the lowest point inside the receiving tray (16); Step 4: When the loader body (1) moves to form a situation where one side is higher and the other side is lower, the extension plate (3) is tilted along with the loader body (1), the swing ball (6) remains vertical under the action of gravity, the turntable (2) remains horizontal, the shield (9) remains vertical, and the turntable (2) can evenly spread the granular fertilizer into the farmland.

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