Fertilizing device for agricultural planting

Abstract

The invention discloses a fertilization device for agricultural planting, and belongs to the technical field of agricultural fertilization, the fertilization device comprises a moving frame and a fertilizer storage box arranged on the moving frame, a driving box is arranged on the moving frame, a three-station circulation driving mechanism is arranged in the driving box, the three-station circulation driving mechanism is arranged on one side of the fertilizer storage box, and the fertilizer storage box is arranged on the moving frame. A fertilizer storage box is arranged on the movable frame, a discharging opening is formed in the bottom end of the fertilizer storage box, a discharging hopper is fixedly installed below the discharging opening, an adjustable precise discharging valve mechanism is arranged between the discharging opening and the discharging hopper, and a downward-inserting type fertilizer applying mechanism is installed on the movable frame in a sliding mode and communicated with the discharging hopper. The fertilizing device for agricultural planting provided by the invention can realize accurate control of the fertilizer amount, and can be inserted into the deep part of soil for fertilization.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural fertilization, and specifically refers to a fertilization device for agricultural planting. Background Art

[0002] In agricultural planting, crops generally need to be fertilized regularly. Currently, fertilization is mainly carried out through two methods: manual sowing and mechanical sowing.

[0003] In actual use, traditional fertilizer machinery mostly applies fertilizer in a centralized manner, and the fertilization method is relatively simple. When applying fertilizer, the fertilizer is directly sprinkled on the soil surface. The roots of crops cannot absorb sufficient nutrients, resulting in poor fertility of the deep soil. In addition, it is difficult for current fertilizer machinery to accurately control the amount of fertilizer, and there is a problem of uneven fertilization. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a fertilization device for agricultural planting, which can achieve precise control of the amount of fertilizer and can be inserted deep into the soil for fertilization.

[0005] The technical solution adopted by the present invention is as follows: the present invention provides a fertilizing device for agricultural planting, comprising a mobile frame and a fertilizer storage box arranged on the mobile frame, the mobile frame is provided with a driving box, the driving box is provided with a three-station circulation driving mechanism, the three-station circulation driving mechanism is arranged on one side of the fertilizer storage box, the bottom end of the fertilizer storage box is provided with a feeding port, a feeding hopper is fixedly installed below the feeding port, an adjustable precision feeding valve mechanism is arranged between the feeding port and the feeding hopper, a lower plug-in fertilizing mechanism is slidably installed on the mobile frame, the lower plug-in fertilizing mechanism is connected with the feeding hopper, the three-station circulation driving mechanism comprises a driving motor, an active dial, a differential transmission gear set, a lower A material driving mechanism, a lower insert driving mechanism, an upward moving driving mechanism and three driven groove wheels distributed in a circular array around the active dial, a partition is provided in the driving box, the active dial and the driven groove wheel are rotatably arranged on the side wall of the partition, the driving motor is arranged in the driving box, the output shaft of the driving motor is connected to the active dial, each side wall of the driven groove wheel is respectively connected with a group of differential transmission gear sets, the differential transmission gear sets are arranged on the other side of the partition, the material discharge driving mechanism, the lower insert driving mechanism and the upward moving driving mechanism are respectively connected to the three groups of differential transmission gear sets, the lower end of the material discharge hopper is connected with a material discharge pipe, the material discharge pipe penetrates downwardly through the moving frame, and the lower insert fertilizing mechanism is slidably connected with the material discharge pipe.

[0006] The adjustable precision material discharge valve mechanism includes a first turntable, a second turntable, a rocker arm and a material gate, a side wall of the material discharge hopper is provided with a pull-out slide hole, a pull-out rod is slidably installed in the pull-out slide hole, the material gate is arranged at the end of the pull-out rod, the material gate is arranged in the material discharge hopper and the material gate is slidably arranged at the bottom end of the material discharge port, the upper wall of the material gate is tightly fitted with the material discharge port, the first turntable is rotatably installed on the upper wall of the moving frame, the second turntable is coaxially rotatably arranged on the upper wall of the first turntable, the outer sides of the first turntable and the second turntable are coaxially fixedly provided with an arc-shaped slider 1 and an arc-shaped slider 2, and the arc-shaped slider 1 and the arc-shaped slider 2 are respectively provided An arc-shaped adjustment slide hole, a locking piece is passed through the arc-shaped adjustment slide hole, a swing shaft is provided on the upper wall of the movable frame, the swing shaft is arranged between the pull-out rod and the first turntable, the middle part of the swing rod is rotatably connected with the swing shaft, an end of the swing rod away from the first turntable is penetrated by a push-pull slide hole, an end of the pull-out rod away from the material gate is provided with a push-pull shaft, the push-pull shaft is arranged on the outside of the lower hopper, the push-pull shaft is slidably clamped in the push-pull slide hole, the end of the swing rod close to the first turntable is in contact with the side walls of the first turntable and the second turntable, a return spring is sleeved on the pull-out rod, and the return spring is arranged between the material gate and the side wall of the lower hopper.

[0007] Preferably, the end of the pulling rod is vertically connected to a horizontal plate, and an adjusting slide hole is penetrated through the horizontal plate. A locking piece 2 is passed through the adjusting slide hole, and the push-pull shaft is coaxially arranged at the lower end of the locking piece 2. By adjusting the position of the locking piece 2 in the adjusting slide hole, the pulling amplitude of the material door each time can be adjusted, thereby adjusting the amount of fertilizer discharged.

[0008] Wherein, the differential transmission gear set includes a large gear and a small gear, the large gear is coaxially fixed with the driven groove wheel, the large gear and the small gear are rotatably arranged on the side wall of the partition, the small gear is meshed with the large gear, and each rotation of the large gear drives the small gear to rotate one circle.

[0009] Furthermore, the unloading drive mechanism includes a driving bevel gear and a driven bevel gear, the driving bevel gear is coaxially fixed to a pinion gear of one of the differential transmission gear sets, the driven bevel gear is rotatably arranged in a drive box, the driven bevel gear is meshed with the driving bevel gear, and the driven bevel gear and the first turntable are connected by chain drive or belt drive.

[0010] Among them, the bottom-insertion fertilization mechanism includes a sliding bracket, a guide sleeve and a fertilizer barrel. The sliding bracket slides through the mobile frame, the sliding bracket is arranged in a U shape, the side wall of the guide sleeve is provided with a mounting bracket, the guide sleeve is fixedly installed on the bottom end of the mobile frame through the mounting bracket, the guide sleeve is arranged to penetrate up and down, the fertilizer barrel is slidably arranged in the guide sleeve, the bottom end of the fertilizer barrel is arranged in a conical shape, the conical fertilizer barrel is convenient for inserting into the soil, the upper end of the fertilizer barrel is slidably sleeved on the outside of the feed pipe, the fertilizer barrel is composed of two barrel shells arranged opposite to each other, the upper end of the barrel shell is slidably connected to the sliding bracket, and the side wall of the barrel shell is provided with a guide sliding shaft The guide sleeve side wall is symmetrically provided with guide sliding holes, and the guide sliding shaft is slidably clamped in the guide sliding hole. The guide sliding hole includes a vertical sliding hole and an oblique sliding hole that are connected. The vertical sliding hole is arranged above the oblique sliding hole, and the oblique sliding hole is inclined in the direction away from the center line of the guide sleeve. The sliding bracket drives the fertilizer cylinder to slide up and down in the guide sleeve. When the fertilizer cylinder moves downward, the guide sliding shaft moves downward accordingly and moves downward along the guide sliding hole. When the guide sliding shaft moves downward along the oblique sliding hole, the oblique sliding hole drives the two cylinder shells to gradually separate through the guide sliding shaft, so that the bottom end of the fertilizer cylinder is opened, and the separated cylinder shells drive the soil to move to both sides to dig a pit, and at the same time, the fertilizer in the fertilizer cylinder falls into the pit.

[0011] Furthermore, the down-insertion driving mechanism includes a down-insertion gear, a driving rod is provided on the side wall of the sliding bracket, a driving sliding hole is provided on the side of the driving box close to the sliding bracket, the driving rod slides through the driving sliding hole and extends into the driving box, the side wall of the driving rod is symmetrically provided with racks, and the upward driving mechanism includes an upward moving gear, the down-insertion gear and the upward moving gear are incomplete gears, and the side walls of the down-insertion gear and the upward moving gear are coaxially fixed with concentric gears, respectively, the two concentric gears are respectively meshed with the pinion gears of the other two sets of differential transmission gear sets, and the pinion gears of the other two sets of differential transmission gear sets are driven at the same speed with the upward moving gear and the down-insertion gear, and initially, the side of the down-insertion gear and the upward moving gear without gear teeth is close to the driving rod.

[0012] As a further improvement of the present invention, a push plate is symmetrically rotatably provided at the bottom end of the guide sleeve, a push shaft is provided at the end of the push plate away from the center line of the guide sleeve, the push shaft is rotatably connected to the side wall of the guide sleeve, an oblique shift plate is connected to the bottom wall of the end of the push plate away from the center line of the guide sleeve, the oblique shift plate is inclined toward the center line of the guide sleeve, and a torsion spring is provided on the push shaft and the side wall of the guide sleeve.

[0013] When the fertilizer cylinder moves downward, it pushes the push plate to rotate downward, and the push plate drives the oblique paddle plate to rotate to both sides to avoid the fertilizer cylinder. When the fertilizer cylinder moves upward, the torsion spring pulls the push plate to reset, and the push plate drives the oblique paddle plate to rotate to the middle and reset, and the oblique paddle plate pushes the soil separated and pushed out by the cylinder shell to the middle, so that the soil covers the fertilizer.

[0014] Preferably, a positioning mechanism is provided on the mobile frame, and the positioning mechanism includes a sliding plug rod, a positioning spring and a wedge block. The top of the driving rod is provided with a positioning hole, and a positioning sleeve is provided in the driving box. The positioning sleeve is provided with an opening on one side close to the driving rod. The sliding plug rod is slidably arranged in the positioning sleeve, and the positioning spring is arranged between the sliding plug rod and the side wall of the positioning sleeve. The wedge block is arranged at one end of the sliding plug rod close to the driving rod, and a push plate is provided at the bottom end of the sliding plug rod. The side wall of the lower plug gear is provided with a push shaft. When the driving rod moves upward, the sliding plug rod is pushed to retract into the positioning position by the wedge block. When the gear is in a state of being moved downward, the gear wheel will move in a direction of rotation with the help of the gear train, and the gear train will move in a direction of rotation with the help of the gear train, so that the gear train will not move downward when the gear train is in a state of being moved downward.

[0015] Preferably, a support frame is provided at the rear end of the mobile frame, and the support frame is U-shaped. A support sleeve penetrating up and down is provided at the rear end of the mobile frame. The support frame is slidably arranged in the support sleeve. Positioning holes are penetrated through the side walls of the support sleeve. Plug holes are distributed in an array on the side walls of the support frame. Positioning shafts are inserted in the plug holes and the positioning holes. The support frame facilitates the device to be stably stopped on the ground, and the positioning shaft and the plug hole facilitate quick disassembly and installation of the support frame.

[0016] Furthermore, the active dial includes a turntable, a rotating rod and a dial shaft, the turntable is rotatably arranged on the side wall of the partition, one end of the rotating rod is fixedly connected to the shaft portion of the side wall of the turntable, the dial shaft is arranged at the other end of the rotating rod, an avoidance gap is provided on one side of the turntable, the rotating rod is arranged in the middle of the avoidance gap, and an outer convex locking arc is provided on the other side of the turntable, the driven groove wheel is rotatably arranged between the rotating rod and the side wall of the partition, and the circumferential side wall of the driven groove wheel is evenly provided with inner concave locking arcs and radial grooves arranged at intervals along the circumferential direction, and the radial grooves are arranged along the radial direction of the driven groove wheel. When the dial shaft does not enter the radial groove of the driven groove wheel, the driven groove wheel is stationary because the inner concave locking arc of the driven groove wheel is stuck by the outer convex locking arc of the turntable. When the dial shaft enters any driven groove wheel When the shift shaft enters the radial groove of any driven groove wheel, the concave locking arcs of the other two driven groove wheels are stuck by the convex locking arcs of the rotating disk. Therefore, the other two groups of driven groove wheels are stationary. As the active dial rotates, the three groups of driven groove wheels rotate in turn.

[0017] Preferably, the bottom end of the fertilizer storage box is arranged in an inverted cone shape, and the feed opening is arranged at the lowest point of the fertilizer storage box.

[0018] In order to keep the sliding of the sliding bracket stable, the upper end of the sliding bracket is connected with a fixing frame, and the fertilizer storage box is arranged in the fixing frame.

[0019] The front upper wall of the mobile frame is provided with a power supply and a travel motor, the front bottom wall of the mobile frame is provided with wheels, the travel motor and the wheels are connected by chain drive or belt drive, and the mobile frame is provided with a pushing handle.

[0020] The beneficial effects achieved by the present invention using the above structure are as follows: 1. A three-station circulating drive mechanism is set up. Every time the active dial rotates one circle, the dial shaft engages with the radial grooves of each driven groove wheel in sequence, driving the three driven groove wheels to rotate in sequence. The three driven groove wheels drive the unloading drive mechanism, the lower insertion drive mechanism, and the upper movement drive mechanism in sequence, realizing the unloading, lower insertion and upper movement actions in sequence.

[0021] 2. By adjusting the overlap degree of arc slider 1 and arc slider 2, the time of the rocker arm offset for each rotation of the first turntable can be adjusted, and then the time of opening the material door can be adjusted, so as to control the duration of each material discharge. By adjusting the position of locking piece 2 in the adjusting slide hole, the pulling amplitude of the material door can be adjusted each time, and then the fertilizer discharge speed can be adjusted. By adjusting the discharge duration and the discharge speed, the amount of fertilizer discharged each time can be accurately controlled.

[0022] 3. By adjusting the speed of the active dial, the fertilization interval can be adjusted. The faster the speed of the active dial, the shorter the feeding time each time, the less the amount of fertilizer, and the more dispersed and even the fertilization, avoiding root burn caused by concentrated fertilization.

[0023] 4. The conical setting of the fertilizer cylinder is convenient for inserting into the soil. The guide sliding hole allows the fertilizer cylinder to open and close automatically during the up and down movement. When the guide sliding shaft moves down along the oblique sliding hole, the oblique sliding hole drives the two cylinder shells to gradually separate through the guide sliding shaft, so that the bottom end of the fertilizer cylinder opens. The separated cylinder shells drive the soil to move to both sides to dig a pit, and at the same time, the fertilizer in the fertilizer cylinder falls into the pit.

[0024] 5. A push plate is set at the bottom of the guide sleeve. When the fertilizer cylinder moves downward, the push plate is pushed to rotate downward, and the push plate drives the oblique dial plate to rotate to both sides to avoid the fertilizer cylinder. When the fertilizer cylinder moves upward, the torsion spring pulls the push plate to reset, and the push plate drives the oblique dial plate to rotate to the middle and reset. The oblique dial plate pushes the soil separated and pushed out by the cylinder shell to the middle, so that the soil covers the fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a fertilizing device for agricultural planting provided by the present invention; Figure 2 A schematic structural diagram of a fertilizing device for agricultural planting provided by the present invention from another perspective; Figure 3 A schematic diagram of the combined structure of the partition plate, differential transmission gear set, material unloading drive mechanism, lower insertion drive mechanism, and upper movement drive mechanism provided by the present invention; Figure 4 A schematic diagram of the combined structure of the active dial and the driven sheave provided by the present invention; Figure 5 A cross-sectional view of the fertilizer storage box, material door, material hopper and material discharge pipe provided by the present invention; Figure 6 A schematic diagram of the combined structure of the three-station circulating drive mechanism and the adjustable precision unloading valve mechanism provided by the present invention; Figure 7 A schematic diagram of the combined structure of the differential transmission gear set and the adjustable precision unloading valve mechanism provided by the present invention; Figure 8A schematic diagram of the structure of the adjustable precision discharge valve mechanism provided by the present invention; Fig. 9 A schematic diagram of the combined structure of the downward-inserting fertilizing mechanism, the sliding bracket, the lower hopper, the lower feeding pipe, the downward-inserting driving mechanism and the upward-moving driving mechanism provided by the present invention; Fig.10 A schematic diagram of the combined structure of the downward-inserting fertilizing mechanism, the sliding bracket, the lower hopper, the lower feeding pipe, the downward-inserting driving mechanism and the upward-moving driving mechanism provided by the present invention from another perspective; Fig.11 A cross-sectional view of the guide sleeve, the fertilizer cylinder, the push plate and the oblique dial plate provided by the present invention; Fig.12 This is a cross-sectional view of the drive box and positioning mechanism provided by the present invention.

[0026] Among them, 1. Mobile frame, 2. Fertilizer storage box, 3. Three-station circulation drive mechanism, 4. Feeding port, 5. Feeding hopper, 6. Adjustable precision feeding valve mechanism, 7. Down-insertion fertilization mechanism, 8. Driving motor, 9. Active dial, 10. Differential transmission gear set, 11. Feeding drive mechanism, 12. Down-insertion drive mechanism, 13. Upward drive mechanism, 14. Driven groove wheel, 15. Drive box, 16. Feeding pipe, 17. Large gear, 18. Pinion, 19, turntable, 20, turnbar, 21, dial shaft, 22, avoidance notch, 23, convex locking arc, 24, concave locking arc, 25, radial groove, 26, first turntable, 27, second turntable, 28, rocker, 29, material door, 30, pull-out slide hole, 31, pull-out rod, 32, arc-shaped slider 1, 33, arc-shaped slider 2, 34, arc-shaped adjustment slide hole, 35, locking piece 1, 36, rocker shaft, 37, push-pull slide hole, 38, Push-pull shaft, 39, reset spring, 40, cross plate, 41, adjustment slide hole, 42, locking piece 2, 43, active bevel gear, 44, driven bevel gear, 45, lower plug gear, 46, drive rod, 47, rack, 48, upper gear, 49, positioning mechanism, 50, sliding plug rod, 51, positioning spring, 52, wedge block, 53, positioning socket, 54, positioning sleeve, 55, sliding bracket, 56, guide sleeve, 57, fertilizer barrel , 58, cylinder shell, 59, guide slide shaft, 60, vertical slide hole, 61, oblique slide hole, 62, push plate, 63, push shaft, 64, oblique dial plate, 65, fixed frame, 66, power supply, 67, travel motor, 68, wheel, 69, push handle, 70, support frame, 71, support sleeve, 72, positioning hole, 73, jack, 74, positioning shaft, 75, partition, 76, concentric gear, 77, push shaft, 78, push plate.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1-Figure 12 As shown, the present invention provides a fertilizing device for agricultural planting, comprising a mobile frame 1 and a fertilizer storage box 2 arranged on the mobile frame 1, the mobile frame 1 is provided with a driving box 15, the driving box 15 is provided with a three-station circulation driving mechanism 3, the three-station circulation driving mechanism 3 is arranged on one side of the fertilizer storage box 2, the bottom end of the fertilizer storage box 2 is provided with a feeding port 4, a feeding hopper 5 is fixedly installed below the feeding port 4, an adjustable precision feeding valve mechanism 6 is provided between the feeding port 4 and the feeding hopper 5, a lower plug-in fertilizer mechanism 7 is slidably installed on the mobile frame 1, and the lower plug-in fertilizer mechanism 7 is connected to the feeding hopper 5, and the three-station circulation driving mechanism 3 includes a driving motor 8, an active dial 9, a differential transmission gear set 10, a feeding driving mechanism 11, and a lower plug-in driving mechanism 12. , an upward driving mechanism 13 and three driven groove wheels 14 distributed in a circular array around the active dial 9, a partition 75 is provided in the driving box 15, the active dial 9 and the driven groove wheels 14 are rotatably arranged on the side wall of the partition 75, the driving motor 8 is arranged in the driving box 15, and the output shaft of the driving motor 8 is connected to the active dial 9, and each side wall of the driven groove wheel 14 is respectively connected with a group of differential transmission gear sets 10, and the differential transmission gear sets 10 are arranged on the other side of the partition 75, the unloading driving mechanism 11, the lower plug-in driving mechanism 12, and the upward driving mechanism 13 are respectively connected to the three groups of differential transmission gear sets 10, and the lower end of the unloading hopper 5 is connected with a unloading pipe 16, and the unloading pipe 16 penetrates the moving frame 1 downward, and the lower plug-in fertilizing mechanism 7 is slidably connected with the unloading pipe 16.

[0031] See also Figure 6 and Figure 7The differential transmission gear set 10 includes a large gear 17 and a small gear 18. The large gear 17 is coaxially fixed to the driven groove wheel 14. The large gear 17 and the small gear 18 are rotatably arranged on the side wall of the partition 75. The small gear 18 is meshed with the large gear 17. Each rotation of the large gear 17 drives the small gear 18 to rotate one circle.

[0032] like Figure 3-Figure 7 As shown, the active dial 9 includes a turntable 19, a turnbar 20 and a dial shaft 21, the turntable 19 is rotatably arranged on the side wall of the partition 75, one end of the turnbar 20 is fixedly connected to the shaft portion of the side wall of the turntable 19, and the dial shaft 21 is arranged at the other end of the turnbar 20. An avoidance gap 22 is provided on one side of the turntable 19, the turnbar 20 is arranged in the middle of the avoidance gap 22, and an outer convex locking arc 23 is provided on the other side of the turntable 19. The driven groove wheel 14 is rotatably arranged between the turnbar 20 and the side wall of the partition 75, and the circumferential side wall of the driven groove wheel 14 is evenly distributed along the circumferential direction with inwardly concave locking arcs 24 and radial grooves 25 arranged at intervals, and the radial grooves 25 are arranged along the radial direction of the driven groove wheel 14.

[0033] When the shift shaft 21 does not enter the radial groove 25 of the driven sheave 14, the driven sheave 14 does not move because the concave locking arc 24 of the driven sheave 14 is stuck by the convex locking arc 23 of the rotating disk 19. When the shift shaft 21 enters the radial groove 25 of any driven sheave 14, as the shift shaft 21 enters the radial groove 25 of the driven sheave 14, the convex locking arc 23 rotates away from the concave locking arc 24 of the driven sheave 14 and the avoidance notch 22 rotates close to the concave locking arc 24 of the driven sheave 14. Thereafter, the driven sheave 14 is driven by the shift shaft 21 to rotate, and the shift shaft 21 is driven to rotate. When the shaft 21 leaves the radial groove 25 on the other side, the convex locking arc 23 rotates into the concave locking arc 24 of the driven sheave 14 again, and the driven sheave 14 stops moving again until the shift shaft 21 enters another radial groove 25 of the driven sheave 14 again, and the above movement is repeated. When the shift shaft 21 enters the radial groove 25 of any driven sheave 14, the concave locking arcs 24 of the remaining two driven sheaves 14 are stuck by the convex locking arcs 23 of the turntable 19, so the remaining two groups of driven sheaves 14 are stationary. As the active dial 9 rotates, the three groups of driven sheaves 14 rotate in sequence.

[0034] like Figure 2-Figure 9As shown, the adjustable precision unloading valve mechanism 6 includes a first rotating disk 26, a second rotating disk 27, a rocker arm 28 and a material gate 29. The side wall of the unloading hopper 5 is provided with a pull-out slide hole 30, and a pull-out rod 31 is slidably installed in the pull-out slide hole 30. The material gate 29 is arranged at the end of the pull-out rod 31. The material gate 29 is arranged in the unloading hopper 5 and the material gate 29 is slidably arranged at the bottom end of the unloading port 4. The upper wall of the material gate 29 is tightly fitted with the unloading port 4. The first rotating disk 26 is rotatably installed on the upper wall of the moving frame 1, and the second rotating disk 27 is coaxially rotatably arranged on the upper wall of the first rotating disk 26. The outer sides of the first rotating disk 26 and the second rotating disk 27 are respectively coaxially fixed with an arc-shaped slider 1 32 and an arc-shaped slider 2 33, and the arc-shaped slider 1 32 and the arc-shaped slider 2 33 are respectively provided with An arc-shaped adjustment slide hole 34, in which a locking piece 35 is passed, a swing shaft 36 is provided on the upper wall of the movable frame 1, and the swing shaft 36 is arranged between the pulling rod 31 and the first turntable 26, the middle part of the swing rod 28 is rotatably connected with the swing shaft 36, and the end of the swing rod 28 away from the first turntable 26 is penetrated by a push-pull slide hole 37, and the end of the pulling rod 31 away from the material gate 29 is provided with a push-pull shaft 38, and the push-pull shaft 38 is arranged on the outside of the lower hopper 5, and the push-pull shaft 38 is slidably clamped in the push-pull slide hole 37, and the other end of the swing rod 28 contacts the side walls of the first turntable 26 and the second turntable 27, and a return spring 39 is sleeved on the pulling rod 31, and the return spring 39 is arranged between the material gate 29 and the side wall of the lower hopper 5.

[0035] See also Figure 8 The end of the pulling rod 31 is vertically connected to a horizontal plate 40, and an adjusting slide hole 41 is penetrated on the horizontal plate 40. A locking piece 42 is penetrated in the adjusting slide hole 41. The push-pull shaft 38 is coaxially arranged at the lower end of the locking piece 42. By adjusting the position of the locking piece 42 in the adjusting slide hole 41, the pulling amplitude of the material door 29 can be adjusted each time, thereby adjusting the amount of fertilizer discharge.

[0036] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the unloading drive mechanism 11 includes a driving bevel gear 43 and a driven bevel gear 44. The driving bevel gear 43 is coaxially fixed to the pinion 18 of one set of differential transmission gear sets 10. The driven bevel gear 44 is rotatably arranged in the drive box 15. The driven bevel gear 44 is meshed with the driving bevel gear 43. The driven bevel gear 44 and the first turntable 26 are connected by chain drive or belt drive.

[0037] See also Figure 1-Figure 11The bottom-insertion fertilizing mechanism 7 includes a sliding bracket 55, a guide sleeve 56 and a fertilizer barrel 57. The sliding bracket 55 slides through the mobile frame 1. The sliding bracket 55 is U-shaped. The side wall of the guide sleeve 56 is provided with a mounting frame. The guide sleeve 56 is fixedly installed on the bottom end of the mobile frame 1 through the mounting frame. The guide sleeve 56 is penetrated up and down. The fertilizer barrel 57 is slidably arranged in the guide sleeve 56. The bottom end of the fertilizer barrel 57 is conical. The conical fertilizer barrel 57 is convenient for inserting into the soil. The upper end of the fertilizer barrel 57 is slidably sleeved on the outer side of the feed pipe 16. The fertilizer barrel 57 is composed of two barrel shells 58 arranged opposite to each other. A rectangular sliding frame is penetrated at the bottom end of the sliding bracket 55. A card slot is provided along the edge of the upper end of the barrel shell 58. The upper end of the barrel shell 58 is slidably connected with the rectangular sliding frame through the card slot. The side wall of the cylinder shell 58 is provided with a guide sliding shaft 59, and the side wall of the guide sleeve 56 is symmetrically provided with guide sliding holes. The guide sliding shaft 59 is slidably clamped in the guide sliding hole. The guide sliding hole includes a vertical sliding hole 60 and an oblique sliding hole 61 that are connected. The vertical sliding hole 60 is arranged above the oblique sliding hole 61, and the oblique sliding hole 61 is inclined in the direction away from the center line of the guide sleeve 56. The sliding bracket 55 drives the fertilizer cylinder 57 to slide up and down in the guide sleeve 56. When the fertilizer cylinder 57 moves downward, the guide sliding shaft 59 moves downward accordingly and moves downward along the guide sliding hole. When the guide sliding shaft 59 moves downward along the oblique sliding hole 61, the oblique sliding hole 61 drives the two cylinder shells 58 to gradually separate through the guide sliding shaft 59, so that the bottom end of the fertilizer cylinder 57 is opened, and the separated cylinder shells 58 drive the soil to move to both sides to dig a pit, and at the same time, the fertilizer in the fertilizer cylinder 57 falls into the pit.

[0038] See also Figure 3-Figure 10 The lower plug-in drive mechanism 12 includes a lower plug-in gear 45, a driving rod 46 is provided on the side wall of the sliding bracket 55, a driving sliding hole is provided on the side of the driving box 15 close to the sliding bracket 55, the driving rod 46 slides through the driving sliding hole and extends into the driving box 15, and the side wall of the driving rod 46 is symmetrically provided with a rack 47, and the upward moving drive mechanism 13 includes an upward moving gear 48, the lower plug-in gear 45 and the upward moving gear 48 are incomplete gears, and part of the circumferential side wall of the incomplete gear is provided with gear teeth to realize intermittent transmission, and the side walls of the lower plug-in gear 45 and the upward moving gear 48 are coaxially fixed with concentric gears 76, respectively, and the two concentric gears 76 are respectively meshed with the pinion gears 18 of the other two sets of differential transmission gear sets 10, and the pinion gears 18 of the other two sets of differential transmission gear sets 10 are driven at the same speed with the upward moving gear 48 and the lower plug-in gear 45. Initially, the side without gear teeth of the lower plug-in gear 45 and the upward moving gear 48 is close to the driving rod 46.

[0039] like Figure 1 , Figure 9-12As shown, the movable frame 1 is provided with a positioning mechanism 49, and the positioning mechanism 49 includes a sliding plug rod 50, a positioning spring 51 and a wedge block 52. A positioning hole 53 is provided at the top of the driving rod 46. A positioning sleeve 54 is provided in the driving box 15. The positioning sleeve 54 is provided with an opening on one side close to the driving rod 46. The sliding plug rod 50 is slidably arranged in the positioning sleeve 54. The positioning spring 51 is arranged between the sliding plug rod 50 and the side wall of the positioning sleeve 54. The wedge block 52 is arranged at one end of the sliding plug rod 50 close to the driving rod 46. A push plate 78 is provided at the bottom end of the sliding plug rod 50, and a push shaft 77 is provided on the side wall of the lower plug gear 45.

[0040] When the driving rod 46 moves upward, the sliding rod 50 is pushed into the positioning sleeve 54 by the wedge block 52 to avoid the driving rod 46. When the positioning socket 53 is aligned with the positioning sleeve 54, the positioning spring 51 pushes the sliding rod 50 to extend and insert into the positioning socket 53, fixes and limits the driving rod 46, and makes the sliding bracket 55 unable to move downward. Initially, the push shaft 77 is arranged on the side of the lower plug gear 45 close to the driving rod 46. When the lower plug gear 45 rotates, the push shaft 77 pushes the push plate 78 to drive the sliding rod 50 to be pulled out of the positioning socket 53. When the sliding rod 50 is completely pulled out of the positioning socket 53, the gear teeth of the lower plug gear 45 just mesh with the rack 47 on the side wall of the driving rod 46. At this time, the sliding bracket 55 is unlimited, and the lower plug gear 45 drives the sliding bracket 55 to move downward through the rack 47 on the side wall of the driving rod 46.

[0041] In some embodiments, the bottom end of the fertilizer storage box 2 is in an inverted cone shape, and the feed opening 4 is located at the lowest point of the fertilizer storage box 2 .

[0042] A push plate 62 is symmetrically rotatably provided at the bottom end of the guide sleeve 56, and a pushing shaft 63 is provided at the end of the push plate 62 away from the center line of the guide sleeve 56. The pushing shaft 63 is rotatably connected to the side wall of the guide sleeve 56, and an inclined shift plate 64 is connected to the bottom wall of the end of the push plate 62 away from the center line of the guide sleeve 56. The inclined shift plate 64 is inclined toward the center line direction of the guide sleeve 56, and a torsion spring is provided on the pushing shaft 63 and the side wall of the guide sleeve 56.

[0043] When the fertilizing cylinder 57 moves downward, it pushes the push plate 62 to rotate downward, and the push plate 62 drives the oblique dial plate 64 to rotate to both sides to avoid the fertilizing cylinder 57. When the fertilizing cylinder 57 moves upward, the torsion spring pulls the push plate 62 to return to its original position, and the push plate 62 drives the oblique dial plate 64 to rotate to the middle and return to its original position. The oblique dial plate 64 pushes the soil separated and pushed out by the cylinder shell 58 to the middle, so that the soil covers the fertilizer.

[0044] In order to keep the sliding bracket 55 sliding smoothly, the upper end of the sliding bracket 55 is connected to a fixing frame 65 , and the fertilizer storage box 2 is arranged in the fixing frame 65 .

[0045] like Figure 1 and Figure 2 As shown, a power source 66 and a travel motor 67 are provided on the front upper wall of the mobile frame 1, a wheel 68 is provided on the front bottom wall of the mobile frame 1, the travel motor 67 and the wheel 68 are connected by chain drive or belt drive, and a pushing handle 69 is provided on the mobile frame 1.

[0046] A support frame 70 is provided at the rear end of the mobile frame 1. The support frame 70 is U-shaped. A support sleeve 71 is provided at the rear end of the mobile frame 1 which passes through the support frame 70 up and down. The support frame 70 is slidably arranged in the support sleeve 71. A positioning hole 72 is penetrated through the side wall of the support sleeve 71. An array of insertion holes 73 are distributed on the side wall of the support frame 70. Positioning shafts 74 are inserted in the insertion holes 73 and the positioning holes 72. The support frame 70 facilitates the device to be stably stopped on the ground. The positioning shaft 74 and the insertion hole 73 facilitate the quick disassembly and installation of the support frame 70.

[0047] When in use, firstly, a sufficient amount of fertilizer is put into the fertilizer storage box 2, then the push handle 69 is held to lift the mobile frame 1, the positioning shaft 74 is pulled out from the insertion hole 73 and the positioning hole 72, and the support sleeve 71 is removed, and then the mobile frame 1 is pushed into the field, the driving motor 8 and the travel motor 67 are started, the travel motor 67 drives the wheel 68 to rotate and move, the driving motor 8 drives the active dial 9 to rotate, and the active dial 9 drives the rotating rod 20 and the dial shaft 2 1 circumferential rotation, when the shift shaft 21 does not enter the radial groove 25 of the driven sheave 14, the driven sheave 14 does not move because the concave locking arc 24 of the driven sheave 14 is stuck by the convex locking arc 23 of the rotating disk 19. When the shift shaft 21 enters the radial groove 25 of any driven sheave 14, as the shift shaft 21 enters the radial groove 25 of the driven sheave 14, the convex locking arc 23 rotates away from the concave locking arc 24 of the driven sheave 14 and avoids the notch 22. The driven sheave 14 is moved close to the concave locking arc 24 of the driven sheave 14. After that, the driven sheave 14 is driven by the shift shaft 21 to rotate. When the shift shaft 21 leaves the radial groove 25 on the other side, the convex locking arc 23 is again rotated into the concave locking arc 24 of the driven sheave 14, and the driven sheave 14 is stationary again until the shift shaft 21 enters another radial groove 25 of the driven sheave 14 again. The above movement is repeated again. When the shift shaft 21 enters any driven sheave 14 When the radial groove 25 is formed, the concave locking arcs 24 of the other two driven groove wheels 14 are caught by the convex locking arcs 23 of the turntable 19, so the other two groups of driven groove wheels 14 are immobile. As the active dial 9 rotates, the three groups of driven groove wheels 14 rotate in sequence to realize the sequential actions of unloading, inserting and moving up. The three groups of driven groove wheels 14 are respectively connected to the unloading drive mechanism 11, the inserting drive mechanism 12 and the moving up drive mechanism 13 through the three groups of differential transmission gear sets 10.

[0048] During the process of the active dial 9 rotating one circle, the dial shaft 21 rotates in sequence and approaches the three driven groove wheels 14. When the dial shaft 21 drives the driven groove wheel 14 connected to the unloading drive mechanism 11 to rotate, the driven groove wheel 14 drives the active bevel gear 43 to rotate through the differential transmission gear set 10. The active bevel gear 43 drives the first turntable 26 to rotate through the driven bevel gear 44. The first turntable 26 drives the second turntable 27 to rotate synchronously through the locking member 1 35. The arc-shaped slider 1 32 and the arc-shaped slider 2 33 on the side walls of the first turntable 26 and the second turntable 27 form a push block. When the arc-shaped slider 1 32 and the arc-shaped slider 2 33 rotate and approach the swing rod 28, the end of the swing rod 28 is pushed to one side, so that the swing rod 28 rotates, and the other end of the swing rod 28 rotates away from the unloading hopper 5. The swing rod 28 drives the pull rod 31 and the material door 29 to slide along the pull slide hole 30 away from the unloading port through the push-pull shaft 38. 4, so that the feeding port 4 is connected with the feeding hopper 5, and the fertilizer falls into the feeding tube 16 through the feeding port 4 and the feeding hopper 5, and falls into the closed fertilizer barrel 57 through the feeding tube 16. By adjusting the overlap degree of the arc-shaped slider 1 32 and the arc-shaped slider 2 33, the time of the rocker arm 28 offsetting each time the first rotating disk 26 rotates one circle can be adjusted, and then the opening time of the material door 29 can be adjusted, so as to control the duration of each feeding. By adjusting the position of the locking member 2 42 in the adjusting slide hole 41, the pulling amplitude of the material door 29 can be adjusted each time, and then the fertilizer feeding speed can be adjusted. By adjusting the feeding duration and the feeding speed, the amount of fertilizer discharged each time can be accurately controlled. When the arc-shaped slider 1 32 and the arc-shaped slider 2 33 rotate away from the rocker arm 28, the reset spring 39 pushes the material door 29 to reset, and the feeding port 4 is blocked again. The pull rod 31 drives the rocker arm 28 to reverse and reset through the push-pull shaft 38;As the active dial 9 continues to rotate, the dial shaft 21 rotates close to the driven groove wheel 14 connected to the lower plug-in drive mechanism 12. In the initial state, the push shaft 77 is arranged on the side of the lower plug-in gear 45 close to the drive rod 46, and the sliding plug rod 50 is inserted into the positioning socket 53 to fix and limit the drive rod 46, so that the sliding bracket 55 cannot move downward. When the dial shaft 21 drives the driven groove wheel 14 connected to the lower plug-in drive mechanism 12 to rotate, the driven groove wheel 14 drives the lower plug-in gear 45 to rotate through the differential transmission gear set 10 and the concentric gear 76, and the lower plug-in gear 45 drives the push shaft 77 to rotate, and the push shaft 77 pushes the push plate 78 to drive the sliding plug rod 50 to be pulled out from the positioning socket 53. When the insertion rod 50 is completely withdrawn from the positioning insertion hole 53, the gear teeth of the lower insertion gear 45 are just meshed with the rack 47 on the side wall of the driving rod 46. At this time, the sliding bracket 55 is unlimited, and the lower insertion gear 45 drives the sliding bracket 55 to move downward through the rack 47 on the side wall of the driving rod 46. The sliding bracket 55 drives the fertilizer barrel 57 to move downward along the guide sleeve 56, and the guide sliding shaft 59 moves downward accordingly and moves downward along the guide sliding hole. When the fertilizer barrel 57 moves downward, it pushes the push plate 62 to rotate downward, and the push plate 62 drives the oblique dial plate 64 to rotate to both sides to avoid the fertilizer barrel 57. When the guide sliding shaft 59 moves downward along the oblique sliding hole 61, the oblique sliding hole 61 drives the two barrel shells 58 to gradually separate through the guide sliding shaft 59, so that the bottom of the fertilizer barrel 57 The two ends are opened, and the separated cylinder shell 58 drives the soil to move to both sides to dig a pit. At the same time, the fertilizer in the fertilizer cylinder 57 is sprinkled into the pit. As the active dial 9 continues to rotate, the dial shaft 21 rotates close to the driven groove wheel 14 connected to the upward drive mechanism 13. When the dial shaft 21 drives the driven groove wheel 14 connected to the upward drive mechanism 13 to rotate, the driven groove wheel 14 drives the upward gear 48 to rotate through the differential transmission gear set 10 and the concentric gear 76. The upward gear 48 drives the sliding bracket 55 to move upward through the rack 47 on the side wall of the driving rod 46. The sliding bracket 55 drives the driving rod 46 and the fertilizer cylinder 57 to move upward. When the driving rod 46 moves upward, the sliding plug rod 50 is pushed into the positioning sleeve 54 through the wedge block 52. When the positioning socket 53 is aligned with the positioning sleeve 54, the positioning spring 51 pushes the sliding plug rod 50 to extend and insert into the positioning socket 53, fixes and limits the driving rod 46, so that the sliding bracket 55 cannot move downward. When the fertilizer barrel 57 moves upward, the fertilizer barrel 57 moves toward each other and closes when moving upward along the oblique sliding hole 61. At the same time, the torsion spring pulls the push plate 62 to reset, and the push plate 62 drives the oblique dial plate 64 to rotate and reset to the middle. The oblique dial plate 64 pushes the soil separated and pushed out by the barrel shell 58 to the middle, so that the soil covers the fertilizer, and the automatic landfill is completed. The above process is repeated every time the active dial 9 rotates one circle, so that the downward insertion fertilization is cyclically performed. ;

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A fertilizing device for agricultural planting, characterized in that: The invention comprises a mobile frame and a fertilizer storage box arranged on the mobile frame, the mobile frame is provided with a driving box, the driving box is provided with a three-station circulation driving mechanism, the three-station circulation driving mechanism is arranged on one side of the fertilizer storage box, the bottom end of the fertilizer storage box is provided with a feeding port, a feeding hopper is fixedly installed below the feeding port, an adjustable precision feeding valve mechanism is arranged between the feeding port and the feeding hopper, a lower plug-in fertilizer applying mechanism is slidably installed on the mobile frame, the lower plug-in fertilizer applying mechanism is connected with the feeding hopper, the three-station circulation driving mechanism comprises a driving motor, an active dial, a differential transmission gear set, a feeding driving mechanism, a lower plug-in driving mechanism, an upper moving driving mechanism The driving mechanism and three driven groove wheels distributed in a circular array around the active dial, a partition is provided in the driving box, the active dial and the driven groove wheels are rotatably arranged on the side wall of the partition, the driving motor is arranged in the driving box, the output shaft of the driving motor is connected to the active dial, each side wall of the driven groove wheel is respectively connected with a group of differential transmission gear sets, the differential transmission gear sets are arranged on the other side of the partition, the unloading driving mechanism, the lower plug-in driving mechanism and the upward driving mechanism are respectively connected to the three groups of differential transmission gear sets, the lower end of the unloading hopper is connected with a unloading pipe, the unloading pipe penetrates the moving frame downward, and the lower plug-in fertilizing mechanism is slidably connected with the unloading pipe.

2. The agricultural planting fertilization device according to claim 1, characterized in that: The adjustable precision unloading valve mechanism includes a first rotating disk, a second rotating disk, a rocker arm and a material door, a side wall of the unloading hopper is provided with a pull-out slide hole, a pull-out rod is slidably installed in the pull-out slide hole, the material door is arranged at the end of the pull-out rod, the material door is arranged in the unloading hopper and the material door is slidably arranged at the bottom end of the unloading port, the upper wall of the material door is tightly fitted with the unloading port, the first rotating disk is rotatably installed on the upper wall of the moving frame, the second rotating disk is coaxially rotatably arranged on the upper wall of the first rotating disk, the outer sides of the first rotating disk and the second rotating disk are coaxially fixedly provided with an arc-shaped slider 1 and an arc-shaped slider 2, and the arc-shaped slider 1 and the arc-shaped slider 2 are respectively provided with arc shaped adjustment slide hole, a locking piece is passed through the arc-shaped adjustment slide hole, a swing shaft is provided on the upper wall of the movable frame, the swing shaft is arranged between the pulling rod and the first turntable, the middle part of the swing rod is rotatably connected with the swing shaft, an end of the swing rod away from the first turntable is penetrated by a push-pull slide hole, an end of the pulling rod away from the material door is provided with a push-pull shaft, the push-pull shaft is arranged on the outside of the lower hopper, the push-pull shaft is slidably clamped in the push-pull slide hole, one end of the swing rod close to the first turntable is in contact with the side walls of the first turntable and the second turntable, a return spring is sleeved on the pulling rod, and the return spring is arranged between the material door and the side wall of the lower hopper.

3. The agricultural planting fertilization device according to claim 2, characterized in that: The end of the pull rod is vertically connected with a horizontal plate, an adjusting sliding hole is penetrated through the horizontal plate, a locking member 2 is penetrated in the adjusting sliding hole, and the push-pull shaft is coaxially arranged at the lower end of the locking member 2.

4. The agricultural planting fertilization device according to claim 3, characterized in that: The differential transmission gear set includes a large gear and a small gear, the large gear is coaxially fixed with the driven groove wheel, and the large gear and the small gear are rotatably arranged on the side wall of the partition; the unloading drive mechanism includes an active bevel gear and a driven bevel gear, the active bevel gear is coaxially fixed with the small gear of one set of differential transmission gear sets, the driven bevel gear is rotatably arranged in the drive box, the driven bevel gear is meshed with the active bevel gear, and the driven bevel gear is transmission-connected to the first turntable.

5. The agricultural planting fertilization device according to claim 4, characterized in that: The lower plug-in fertilizing mechanism comprises a sliding bracket, a guide sleeve and a fertilizing barrel, the sliding bracket slides through the moving frame, the sliding bracket is arranged in a U shape, the side wall of the guide sleeve is provided with a mounting bracket, the guide sleeve is fixedly installed on the bottom end of the moving frame through the mounting bracket, the guide sleeve is arranged to penetrate up and down, the fertilizing barrel is slidably arranged in the guide sleeve, the bottom end of the fertilizing barrel is arranged in a conical shape, and the conical fertilizing barrel is convenient for inserting into the soil, and the upper end of the fertilizing barrel is slidably sleeved on the outer side of the feeding pipe, the fertilizing barrel is composed of two barrel shells arranged opposite to each other, the upper end of the barrel shell is slidably connected with the sliding bracket, the side wall of the barrel shell is provided with a guide sliding shaft, the side wall of the guide sleeve is symmetrically provided with guide sliding holes, the guide sliding shaft is slidably clamped in the guide sliding hole, the guide sliding hole comprises a connected vertical sliding hole and an oblique sliding hole, the vertical sliding hole is arranged above the oblique sliding hole, and the oblique sliding hole is inclined in a direction away from the center line of the guide sleeve.

6. The agricultural planting fertilization device according to claim 5, characterized in that: The downward insertion driving mechanism includes a downward insertion gear, a driving rod is provided on the side wall of the sliding bracket, a driving sliding hole is provided on the side of the driving box close to the sliding bracket, the driving rod slides through the driving sliding hole and extends into the driving box, and the side wall of the driving rod is symmetrically provided with racks, and the upward movement driving mechanism includes an upward movement gear, the downward insertion gear and the upward movement gear are incomplete gears, and the side walls of the downward insertion gear and the upward movement gear are respectively coaxially fixed with concentric gears, and the two concentric gears are respectively meshed with the pinion gears of the other two sets of differential transmission gear sets.

7. The agricultural planting fertilization device according to claim 6, characterized in that: The bottom end of the guide sleeve is symmetrically rotated with a push plate, and the end of the push plate away from the center line of the guide sleeve is provided with a push shaft, the push shaft is rotatably connected to the side wall of the guide sleeve, and the bottom wall of the end of the push plate away from the center line of the guide sleeve is connected to an inclined shift plate, the inclined shift plate is inclined toward the center line direction of the guide sleeve, and a torsion spring is provided on the push shaft and the side wall of the guide sleeve.

8. The agricultural planting fertilization device according to claim 7, characterized in that: The movable frame is provided with a positioning mechanism, which includes a sliding plug rod, a positioning spring and a wedge block. The top end of the driving rod is provided with a positioning hole. A positioning sleeve is provided in the driving box. The positioning sleeve is provided with an opening on one side close to the driving rod. The sliding plug rod is slidably arranged in the positioning sleeve. The positioning spring is arranged between the sliding plug rod and the side wall of the positioning sleeve. The wedge block is arranged at one end of the sliding plug rod close to the driving rod. A push plate is provided at the bottom end of the sliding plug rod, and a push shaft is provided on the side wall of the lower plug gear.

9. The agricultural planting fertilization device according to claim 8, characterized in that: A support frame is provided at the rear end of the movable frame, and the support frame is U-shaped. A support sleeve is provided at the rear end of the movable frame and passes through the support frame up and down. The support frame is slidably arranged in the support sleeve, and a positioning hole is penetrated through the side wall of the support sleeve. The side wall of the support frame is provided with an array of insertion holes, and a positioning shaft is inserted into the insertion hole and the positioning hole.

10. The agricultural planting fertilization device according to claim 9, characterized in that: The active dial includes a turntable, a turning rod and a dial shaft. The turntable is rotatably arranged on the side wall of the partition. One end of the turning rod is fixedly connected to the shaft portion of the side wall of the turntable. The dial shaft is arranged at the other end of the turning rod. An avoidance gap is arranged on one side of the turntable. The turning rod is arranged in the middle of the avoidance gap. An outward convex locking arc is arranged on the other side of the turntable. The driven groove wheel is rotatably arranged between the turning rod and the side wall of the partition. Inward concave locking arcs and radial grooves are evenly distributed along the circumferential direction on the circumferential side wall of the driven groove wheel. The radial groove is arranged along the radial direction of the driven groove wheel.

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