Accurate agricultural fertilizer application device

Abstract

The invention discloses an agricultural fertilizer precise application device, and relates to the field of agricultural planting equipment, the agricultural fertilizer precise application device comprises a mobile vehicle body, and also comprises a mounting rack, a depth setting mechanism and a quantitative blanking assembly, the mounting rack is mounted on the mobile vehicle body, the depth setting mechanism is mounted on the mounting rack, and the depth setting mechanism is used for determining the application depth of a fertilizer; the depth keeping mechanism comprises a driving part and two sets of depth keeping assemblies, each depth keeping assembly comprises a positioning barrel and a drill rod, the drill rod is sleeved with the positioning barrel, and one side of the driving part is connected with the drill rod and the positioning barrel; according to the precise agricultural fertilizer applying device, by arranging the depth keeping mechanism, the fertilizing depth can be precisely controlled, it is ensured that the depth of fertilizer applied into soil meets the growth requirement of crops, and a driving component and a depth keeping assembly in the depth keeping mechanism work in a matched mode, so that a drill rod continues to move downwards after a positioning cylinder stops moving; the soil is extruded to form a hole for applying a fertilizer, and the fertilization depth can be adjusted by adjusting the moving distance of the drill rod.

Description

Technical Field

[0001] The present invention relates to agricultural planting equipment technology, and in particular to a precise agricultural fertilizer application device. Background Art

[0002] In the field of agricultural planting, the application of fertilizers is a key link to ensure the healthy growth of crops and increase yields. However, traditional fertilizer application methods often have problems such as uneven application, excessive or insufficient application, which not only wastes resources but may also have adverse effects on soil and crops. With the continuous advancement of agricultural technology, the precision application technology of agricultural fertilizers has gradually become a research hotspot.

[0003] At present, some agricultural fertilizer application devices have appeared on the market, but these devices still need to be improved in terms of accuracy and automation. For example, some devices cannot accurately apply fertilizers according to the actual growth needs of crops and soil conditions, resulting in low fertilizer utilization. Taking corn as an example, the fertilization depth needs to be flexibly adjusted according to the fertilization stage. The base fertilizer application depth should reach 15 to 20 centimeters, the seed fertilizer should be applied 3 to 5 centimeters below the seeds, and the topdressing should be applied 10 to 16 centimeters deep in the soil to ensure that the fertilizer effectively supplies the nutrients required for corn growth; however, traditional fertilization devices are usually installed on mobile vehicles, and the fertilization depth is determined relative to the mobile vehicle, which can easily lead to uncertain fertilization depth on uneven land, affecting the fertilization effect. Summary of the invention

[0004] The purpose of the present invention is to provide an agricultural fertilizer precision application device to solve the problem that the fertilization device in the prior art is usually installed on a mobile vehicle, and the fertilization depth is determined relative to the mobile vehicle, which can easily lead to uncertain fertilization depth on uneven land and affect the fertilization effect.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an agricultural fertilizer precision application device, including a mobile body, a mounting frame, a depth setting mechanism and a quantitative feeding assembly:

[0006] The mounting frame is installed on the mobile vehicle body;

[0007] The depth setting mechanism is installed on the mounting frame. The depth setting mechanism is used to determine the application depth of the fertilizer. The depth setting mechanism includes a driving component and two sets of depth setting components. The depth setting components include a positioning cylinder and a drill rod. The positioning cylinder is sleeved on the outside of the drill rod. One side of the driving component is connected to the drill rod and the positioning cylinder respectively. The driving component is used to drive the drill rod and the positioning cylinder to move along the height direction of the drill rod. After the bottom end of the positioning cylinder contacts the soil and stops moving, the driving component can drive the drill rod to move downward relative to the positioning cylinder along the height direction of the drill rod to drill a hole in the soil.

[0008] The quantitative feeding component is installed on the mounting frame, and the quantitative feeding component is used to feed fertilizer into the hole drilled by the drill rod.

[0009] Furthermore, the driving component includes two connecting tubes, two elastic members, a fixing frame and a movable driving assembly. The two connecting tubes are respectively fixedly mounted on the outside of the two drill rods. The outer side walls of the upper ends of the drill rods are slidably connected to the mounting frame. The two elastic members correspond to the two connecting tubes one by one. The top ends of the two elastic members are respectively fixedly connected to the corresponding connecting tubes. The bottom ends of the two elastic members are respectively fixedly connected to the positioning tubes on one side. One side of the two connecting tubes is respectively fixedly connected to the fixing frame. One side of the fixing frame is connected to a movable driving assembly for driving the fixing frame to move along the height direction of the drill rod.

[0010] Furthermore, the mobile drive assembly includes a connecting rod, a turntable, a slider, an adjustment drive member, a rotating shaft and a rotating drive member A. One end of the connecting rod is hinged to the fixed frame, and the other end of the connecting rod is hinged to the slider. One side of the slider is slidably connected to the turntable, and one side of the slider is connected to the adjustment drive member for driving the slider to move radially along the turntable. The turntable is fixedly sleeved on the outside of the rotating shaft, and the rotating shaft is rotatably installed on the mounting frame. The output shaft end of the A rotating drive member is connected to the rotating shaft through a transmission belt.

[0011] Furthermore, the adjusting driving member is a screw rod, both ends of the screw rod are rotatably connected to the turntable respectively, and the outer side wall of the screw rod is threadedly connected to the slider.

[0012] Furthermore, the quantitative feeding assembly includes a material bin, a feeding drive assembly, a feeding adjustment assembly and two feeding parts, the two feeding parts correspond to the two fixed depth assemblies one by one, the material bin is fixedly mounted on the mounting frame, the feeding part includes a guide ring, a guide plate and a guide part, the guide plate is rotatably mounted on the guide ring, an upper opening is provided at the top of the guide ring, the top of the upper opening is communicated with the interior of the material bin, one side of the guide plate is connected to a feeding drive assembly for driving the guide plate to rotate around its own axis, a plurality of quantitative bins are evenly arranged on the guide plate, the guide part is used to guide the fertilizer entering the quantitative bin into the hole drilled by the drill rod, an adjusting plate is slidably connected to the interior of the quantitative bin, and one side of the adjusting plate is connected to a feeding adjustment assembly for driving the adjusting plate to move along the inner wall of the quantitative bin.

[0013] Furthermore, a lower opening is provided at the bottom end of the guide ring, and the guide member includes an upper guide tube and a lower guide tube. The bottom end of the lower opening is connected to the interior of the corresponding upper guide tube, the outer wall of the lower end of the upper guide tube is slidably connected to the lower guide tube, and the bottom end of the lower guide tube is connected to the bottom end of the corresponding positioning tube.

[0014] Furthermore, the material unloading drive assembly includes a B rotating drive member and a transmission shaft, the material guide plate is fixedly sleeved on the outside of the transmission shaft, and the output shaft end of the B rotating drive member is connected to the transmission shaft through a transmission belt.

[0015] Furthermore, the material unloading adjustment assembly includes a mobile driving member and two groups of adjusting members, the two adjusting members correspond one-to-one to the two material guiding members, the adjusting members include multiple connecting members, the multiple connecting members correspond one-to-one to the multiple adjusting disks, one end of the multiple connecting members is fixedly connected to the corresponding adjusting disks, the other ends of the multiple connecting members are hinged with push rods, the ends of the multiple push rods away from the connecting members are hinged with the same moving ring, and one side of the moving ring is connected to a mobile driving member for driving the moving ring to move axially along the material guiding disk.

[0016] Furthermore, the mobile driving component includes a C rotating driving component, a transmission sleeve, two guide rods and two internally threaded sleeves. The transmission sleeve is rotatably installed on the outside of the transmission shaft. Two thread grooves are symmetrically provided on the transmission sleeve. The transmission sleeve is threadedly connected with the two internally threaded sleeves through the two thread grooves thereon. The two internally threaded sleeves correspond one by one to the moving rings in the two adjusting components. The outer side walls of the two internally threaded sleeves are rotatably connected with the corresponding moving rings. One end of the two guide rods are fixedly connected to the mounting frame respectively. The outer side walls of the two guide rods are slidably connected to the internally threaded sleeves on one side respectively. The output shaft end of the C rotating driving component is transmission-connected to the transmission sleeve through a transmission belt.

[0017] Furthermore, a support seat is provided at the bottom end of the positioning cylinder.

[0018] Compared with the prior art, the present invention provides an agricultural fertilizer precision application device, which can accurately control the fertilization depth by providing a depth-fixing mechanism, ensuring that the depth of fertilizer applied into the soil meets the growth requirements of crops. The driving component and the depth-fixing assembly in the depth-fixing mechanism work together to allow the drill rod to continue to move downward after the positioning tube stops moving, squeezing the soil to form holes for fertilizer application. The fertilization depth can be adjusted by adjusting the moving distance of the drill rod.

[0019] By setting up the quantitative feeding components, the quantitative delivery of fertilizers can be achieved to meet the fertilizer application requirements of different crops at different growth stages. This not only improves the accuracy and efficiency of fertilization, but also reduces fertilizer waste and agricultural production costs, which is of great significance to promoting the sustainable development of agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of an external three-dimensional structure provided by an embodiment of the present invention;

[0022] Figure 2A schematic diagram of a side cross-sectional structure provided by an embodiment of the present invention;

[0023] Figure 3 The embodiment of the present invention provides Figure 2 A is an enlarged schematic diagram;

[0024] Figure 4 A schematic diagram of the structure of a driving component (part) provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

[0026] Figure 6 The embodiment of the present invention provides Figure 5 The enlarged schematic diagram of point B in FIG.

[0027] Figure 7 A schematic diagram of the combination of a material unloading adjustment assembly, a mounting frame, an adjustment disk and a transmission shaft provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 100, mounting frame; 200, depth setting mechanism; 210, driving component; 211, connecting tube; 212, elastic member; 213, fixing frame; 214, connecting rod; 215, turntable; 216, slider; 217, adjusting driving member; 218, rotating shaft; 219, A rotating driving member; 220, depth setting assembly; 221, positioning tube; 222, drill rod; 300, quantitative unloading assembly; 310, material cabin; 320, unloading driving assembly; 32 1. B rotary drive member; 322. transmission shaft; 330. material discharge member; 331. material guide ring; 332. material guide plate; 333. upper material guide pipe; 334. lower material guide pipe; 335. quantitative bin; 336. adjustment plate; 340. material discharge adjustment assembly; 341. connecting member; 342. push rod; 343. moving ring; 344. C rotary drive member; 345. transmission sleeve; 346. guide rod; 347. internal threaded sleeve; 400. support seat. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figures 1 to 3 , an agricultural fertilizer precision application device, comprising a mobile body, and also comprising:

[0032] A mounting frame 100, which is mounted on a mobile vehicle body;

[0033] The depth setting mechanism 200 is installed on the mounting frame 100. The depth setting mechanism 200 is used to determine the application depth of the fertilizer. The depth setting mechanism 200 includes a driving component 210 and two sets of depth setting components 220. The depth setting components 220 include a positioning cylinder 221 and a drill rod 222. The positioning cylinder 221 is sleeved on the outside of the drill rod 222. One side of the driving component 210 is connected to the drill rod 222 and the positioning cylinder 221 respectively. The driving component 210 is used to drive the drill rod 222 and the positioning cylinder 221 to move along the height direction of the drill rod 222. After the bottom end of the positioning cylinder 221 contacts the soil and stops moving, the driving component 210 can drive the drill rod 222 to move downward relative to the positioning cylinder 221 along the height direction of the drill rod 222 to drill the soil.

[0034] The quantitative feeding assembly 300 is installed on the mounting frame 100 , and is used to feed fertilizer into the hole drilled by the drill rod 222 .

[0035] Different crops have their own unique requirements for fertilization depth due to differences in root distribution and growth habits. For example, the fertilization depth of corn needs to be flexibly adjusted according to the fertilization stage. The basal fertilizer should be applied at a depth of 15 to 20 cm, the seed fertilizer should be applied 3 to 5 cm below the seeds, and the topdressing should be applied 10 to 16 cm deep into the soil to ensure that the fertilizer effectively supplies the nutrients needed for corn growth.

[0036] To this end, the present application is provided with a depth-fixing mechanism 200. When fertilizing, the driving component 210 drives the drill rod 222 and the positioning cylinder 221 to move downward along the height direction of the drill rod 222. After the bottom end of the positioning cylinder 221 contacts the soil and stops moving, the driving component 210 continues to drive the drill rod 222 downward. The downward movement of the drill rod 222 squeezes the soil to form a hole for fertilizer application. The distance that the drill rod 222 moves downward relative to the positioning cylinder 221 is the depth of the hole. The movement distance of the drill rod 222 can be adjusted. The depth of fertilization can be adjusted. After the drill rod 222 drills a hole, fertilizer is applied into the hole through the quantitative feeding assembly 300, so that precise fertilization of crops can be completed. In addition, the fertilization depth of the present application is relative to the ground, while the existing fertilization device is usually installed on a mobile vehicle (such as a tractor). When fertilizing, the depth of fertilization is relative to the mobile vehicle, which leads to uncertainty in the fertilization depth when fertilizing on some relatively uneven land, thereby effectively improving the fertilization accuracy of the device.

[0037] See also Figures 2 to 4In one embodiment of the present invention, the driving component 210 includes two connecting tubes 211, two elastic members 212, a fixing frame 213 and a mobile driving assembly. The two connecting tubes 211 are respectively fixedly sleeved on the outside of the two drill rods 222. The upper outer wall of the drill rod 222 is slidably connected to the mounting frame 100. The two elastic members 212 correspond to the two connecting tubes 211 one by one. The top ends of the two elastic members 212 are respectively fixedly connected to the corresponding connecting tubes 211. The bottom ends of the two elastic members 212 are respectively fixedly connected to the positioning tubes 221 on one side. One side of the two connecting tubes 211 is respectively fixedly connected to the fixing frame 213. One side of the fixing frame 213 is connected to a mobile driving assembly for driving the fixing frame 213 to move along the height direction of the drill rod 222.

[0038] Specifically, the fixed frame 213 is driven to move along the height direction of the drill rod 222 by the mobile driving assembly. When the fixed frame 213 moves, the connecting cylinder 211 is driven to move. The connecting cylinder 211 drives the positioning cylinder 221 to move through the elastic member 212. When the bottom end of the positioning cylinder 221 contacts the ground, the positioning cylinder 221 cannot move downward any further. At this time, the elastic member 212 is compressed, and the drill rod 222 continues to move downward to form a hole for fertilization.

[0039] In one embodiment of the present invention, the elastic member 212 is a spring.

[0040] See also Figure 2 and Figure 4 In one embodiment of the present invention, the mobile driving assembly includes a connecting rod 214, a rotating disk 215, a slider 216, an adjusting driving member 217, a rotating shaft 218 and a rotating driving member A 219, one end of the connecting rod 214 is hinged to the fixed frame 213, the other end of the connecting rod 214 is hinged to the slider 216, one side of the slider 216 is slidably connected to the rotating disk 215, one side of the slider 216 is connected to the adjusting driving member 217 for driving the slider 216 to move radially along the rotating disk 215, the rotating disk 215 is fixedly sleeved on the outside of the rotating shaft 218, the rotating shaft 218 is rotatably mounted on the mounting frame 100, the output shaft end of the rotating driving member A 219 is connected to the rotating shaft 218 through a transmission belt, the rotating driving member A 219 adopts a rotating cylinder or a motor, the rotating driving member A 219 is fixedly mounted on the mounting frame 100, the output shaft of the rotating driving member A 219 and the rotating shaft 218 are fixedly sleeved with a transmission wheel, and the two transmission wheels are sleeved with the same transmission belt.

[0041] Specifically, A rotary drive member 219 drives shaft 218 to rotate through a transmission belt, shaft 218 drives turntable 215 to rotate, turntable 215 drives slider 216 to rotate, and since drill rod 222 is slidably connected to mounting frame 100, under the limit of drill rod 222, slider 216 drives fixing frame 213 to move up and down through connecting rod 214, thereby realizing up and down reciprocating movement of drill rod 222 and positioning cylinder 221, and when adjusting the fertilization depth, that is, adjusting the downward movement distance of drill rod 222, slider 216 is driven to move radially along turntable 215 by adjusting drive member 217, and the distance between slider 216 and shaft 218 is changed, so that the moving distance of drill rod 222 can be changed, thereby realizing the adjustment of fertilization depth.

[0042] See also Figure 4 In one embodiment of the present invention, the adjusting driving member 217 is a screw, both ends of the screw are rotatably connected to the turntable 215, and the outer wall of the screw is threadedly connected to the slider 216;

[0043] Specifically, when the fertilization depth needs to be adjusted, the screw is rotated to drive the slider 216 to move. Furthermore, an electrical component that can drive the screw to rotate can be provided, specifically a rotating cylinder or a motor can be used to achieve automatic adjustment of the position of the slider 216.

[0044] In one embodiment of the present invention, the adjustment drive member 217 is a telescopic drive member, which can be a telescopic cylinder or a hydraulic cylinder, the movable end of the telescopic drive member is fixedly connected to the slider 216, and the fixed end of the telescopic drive member is fixedly connected to the turntable 215;

[0045] Specifically, the movement of the moving end of the telescopic driving member drives the slider 216 to move, so as to achieve automatic adjustment of the position of the slider 216 .

[0046] See also Figure 2 , Figure 5 and Figure 6In one embodiment of the present invention, the quantitative unloading assembly 300 includes a material chamber 310, an unloading driving assembly 320, an unloading adjusting assembly 340 and two unloading parts 330. The two unloading parts 330 correspond to the two fixed depth assemblies 220 one by one. The material chamber 310 is fixedly mounted on the mounting frame 100. The unloading part 330 includes a guide ring 331, a guide plate 332 and a guide part. The guide plate 332 is rotatably mounted on the guide ring 331. The top of the guide ring 331 is provided with an upper opening, and the top of the upper opening is connected to the guide ring 331. The interior of the material chamber 310 is connected, one side of the material guide plate 332 is connected to a material discharge driving assembly 320 for driving the material guide plate 332 to rotate around its own axis, a plurality of quantitative chambers 335 are evenly provided on the material guide plate 332, and the material guide is used to guide the fertilizer entering the quantitative chamber 335 into the hole drilled by the drill rod 222, and an adjustment plate 336 is slidably connected inside the quantitative chamber 335, and one side of the adjustment plate 336 is connected to a material discharge adjusting assembly 340 for driving the adjusting plate 336 to move along the inner wall of the quantitative chamber 335;

[0047] A lower opening is provided at the bottom end of the guide ring 331, and the guide member includes an upper guide tube 333 and a lower guide tube 334. The bottom end of the lower opening is connected to the interior of the corresponding upper guide tube 333, the top end of the upper guide tube 333 is fixedly connected to the corresponding guide plate 332, the lower end outer wall of the upper guide tube 333 is slidably connected to the lower guide tube 334, the upper end of the upper guide tube 333 is fixedly connected to the mounting frame 100, the bottom end of the lower guide tube 334 is connected to the bottom end of the corresponding positioning tube 221, and the bottom end of the lower guide tube 334 is fixedly connected to the corresponding positioning tube 221;

[0048] Specifically, since different periods and different crops require different amounts of fertilizer when fertilizing crops, the present application provides an adjustment disk 336. When the amount of fertilizer needs to be adjusted, the position of the adjustment disk 336 in the quantitative bin 335 is changed, that is, the amount of fertilizer that can be loaded in the quantitative bin 335 is changed. When fertilizing, the adjustment disk 336 is driven to move along the inner wall of the quantitative bin 335 by the feeding adjustment component 340, thereby adjusting the fertilizer loading amount. 320 drives the guide plate 332 to rotate. When a quantitative bin 335 on the guide plate 332 rotates to the bottom of the upper opening on the guide ring 331, the fertilizer in the material compartment 310 enters the quantitative bin 335 through the upper opening. After the fertilizer enters the quantitative bin 335, the guide plate 332 continues to rotate. When the quantitative bin 335 filled with fertilizer rotates to the top of the lower opening, the fertilizer in the quantitative bin 335 enters the upper guide pipe 333 from the lower opening, and enters the positioning cylinder 221 from the lower guide pipe 334 to be discharged, completing the fertilization.

[0049] See also Figure 5 and Figure 6In one embodiment of the present invention, the material unloading drive assembly 320 includes a B rotary drive member 321 and a transmission shaft 322, the material guide plate 332 is fixedly sleeved on the outside of the transmission shaft 322, the output shaft end of the B rotary drive member 321 is connected to the transmission shaft 322 through a transmission belt, the B rotary drive member 321 is a motor or a rotary cylinder, the B rotary drive member 321 is fixedly installed on the mounting frame 100, the outside of the output shaft of the B rotary drive member 321 and the outside of the transmission shaft 322 are both sleeved with transmission wheels, and the outsides of the two transmission wheels are sleeved with the same transmission belt;

[0050] Specifically, the B rotary drive member 321 drives the transmission shaft 322 to rotate through a transmission belt, and when the transmission shaft 322 rotates, it drives the material guide plate 332 to rotate.

[0051] See also Figures 5 and 6 In one embodiment of the present invention, the material unloading adjustment component 340 includes a mobile driving member and two groups of adjustment members, the two adjustment members correspond to the two material guide members one by one, the adjustment members include a plurality of connecting members 341, the plurality of connecting members 341 correspond to the plurality of adjustment disks 336 one by one, one end of the plurality of connecting members 341 is fixedly connected to the corresponding adjustment disks 336, the other ends of the plurality of connecting members 341 are hinged with push rods 342, the ends of the plurality of push rods 342 away from the connecting members 341 are hinged with the same moving ring 343, one side of the moving ring 343 is connected with a mobile driving member for driving the moving ring 343 to move along the axial direction of the material guide disk 332;

[0052] Specifically, the movable ring 343 is driven to move axially along the guide plate 332 by the movable driving member. When the movable ring 343 moves, the adjusting plate 336 is driven to move along the inner wall of the quantitative bin 335 through the push rod 342 and the connecting member 341, thereby realizing the adjustment of the fertilizer application amount.

[0053] See also Figure 7In one embodiment of the present invention, the mobile driving member includes a C rotary driving member 344, a transmission sleeve 345, two guide rods 346 and two internally threaded sleeves 347. The transmission sleeve 345 is rotatably mounted on the outside of the transmission shaft 322. Two thread grooves are symmetrically provided on the transmission sleeve 345. The transmission sleeve 345 is threadedly connected with the two internally threaded sleeves 347 through the two thread grooves thereon. The two internally threaded sleeves 347 correspond to the moving rings 343 in the two adjusting members one by one. The outer side walls of the two internally threaded sleeves 347 are respectively connected to the moving rings 343 corresponding to the moving rings 343 in the two adjusting members. 43 rotation connection, one end of the two guide rods 346 is fixedly connected to the mounting frame 100 respectively, the outer side walls of the two guide rods 346 are respectively slidably connected to the internal threaded sleeve 347 on one side thereof, the output shaft end of the C rotation driving member 344 is transmission-connected to the transmission sleeve 345 through a transmission belt, the C rotation driving member 344 adopts a motor or a rotary cylinder, the C rotation driving member 344 is fixedly installed on the mounting frame 100, the output shaft of the C rotation driving member 344 and the transmission sleeve 345 are fixedly sleeved with transmission wheels, and the two transmission wheels are externally sleeved with the same transmission belt;

[0054] Specifically, the C rotary drive member 344 drives the transmission sleeve 345 to rotate through the transmission belt. When the transmission sleeve 345 rotates, the two internal threaded sleeves 347 are driven to move through the threaded grooves provided thereon. When the internal threaded sleeves 347 move, the movable ring 343 is driven to move, thereby realizing the adjustment of the position of the adjustment disk 336.

[0055] See also Figure 1 to Figure 2 In one embodiment of the present invention, a support seat 400 is disposed at the bottom end of the positioning cylinder 221 .

[0056] In one embodiment of the present invention, a corresponding controller may be provided to control the opening and closing of the electrical components mentioned above in the present application. Specifically, a single chip microcomputer may be used. This is a prior art and will not be elaborated herein.

[0057] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An agricultural fertilizer precision application device, comprising a mobile body, characterized in that: Also includes: A mounting frame (100) mounted on a mobile vehicle body; A depth-setting mechanism (200) is mounted on a mounting frame (100). The depth-setting mechanism (200) is used to determine the application depth of fertilizer. The depth-setting mechanism (200) comprises a driving component (210) and two sets of depth-setting components (220). The depth-setting components (220) comprise a positioning cylinder (221) and a drill rod (222). The positioning cylinder (221) is sleeved on the outside of the drill rod (222). One side of the driving component (210) is respectively connected to the drill rod (222) and the positioning cylinder (221). The driving component (210) is used to drive the drill rod (222) and the positioning cylinder (221) to move along the height direction of the drill rod (222). After the bottom end of the positioning cylinder (221) contacts the soil and stops moving, the driving component (210) can drive the drill rod (222) to move downward relative to the positioning cylinder (221) along the height direction of the drill rod (222) to drill a hole in the soil. The quantitative feeding assembly (300) is installed on the mounting frame (100), and the quantitative feeding assembly (300) is used to feed fertilizer into the hole drilled by the drill rod (222).

2. The agricultural fertilizer precision application device according to claim 1, characterized in that: The driving component (210) comprises two connecting tubes (211), two elastic members (212), a fixing frame (213) and a moving driving assembly. The two connecting tubes (211) are respectively fixedly sleeved on the outside of the two drill rods (222). The outer side walls of the upper ends of the drill rods (222) are slidably connected to the mounting frame (100). The two elastic members (212) correspond to the two connecting tubes (211) one by one. The top ends of the two elastic members (212) are respectively fixedly connected to the corresponding connecting tubes (211). The bottom ends of the two elastic members (212) are respectively fixedly connected to the positioning tubes (221) on one side thereof. One side of the two connecting tubes (211) is respectively fixedly connected to the fixing frame (213). One side of the fixing frame (213) is connected to a moving driving assembly for driving the fixing frame (213) to move along the height direction of the drill rod (222).

3. The agricultural fertilizer precision application device according to claim 2, characterized in that: The mobile driving assembly comprises a connecting rod (214), a rotating disk (215), a sliding block (216), an adjusting driving member (217), a rotating shaft (218) and a rotating driving member A (219); one end of the connecting rod (214) is hinged to a fixed frame (213); the other end of the connecting rod (214) is hinged to a sliding block (216); one side of the sliding block (216) is slidably connected to the rotating disk (215); one side of the sliding block (216) is connected to an adjusting driving member (217) for driving the sliding block (216) to move radially along the rotating disk (215); the rotating disk (215) is fixedly sleeved outside the rotating shaft (218); the rotating shaft (218) is rotatably mounted on a mounting frame (100); and an output shaft end of the rotating driving member A (219) is transmission-connected to the rotating shaft (218) via a transmission belt.

4. The agricultural fertilizer precision application device according to claim 3, characterized in that: The adjusting driving member (217) is a screw rod, both ends of which are rotatably connected to the rotating disk (215), and the outer side wall of the screw rod is threadedly connected to the slider (216).

5. The agricultural fertilizer precision application device according to claim 1, characterized in that: The quantitative material discharge assembly (300) comprises a material chamber (310), a material discharge driving assembly (320), a material discharge adjustment assembly (340) and two material discharge parts (330), wherein the two material discharge parts (330) correspond to the two depth-fixing assemblies (220) one by one, the material chamber (310) is fixedly mounted on the mounting frame (100), the material discharge part (330) comprises a material guide ring (331), a material guide plate (332) and a material guide part, the material guide plate (332) is rotatably mounted on the material guide ring (331), the top end of the material guide ring (331) is provided with an upper opening, and the top end of the upper opening is connected to the material chamber (310) ) are connected to each other internally, one side of the guide disc (332) is connected to a material discharge driving assembly (320) for driving the guide disc (332) to rotate around its own axis, a plurality of quantitative bins (335) are evenly arranged on the guide disc (332), the material guide member is used to guide the fertilizer entering the quantitative bins (335) into the holes drilled by the drill rod (222), an adjusting disc (336) is slidably connected inside the quantitative bin (335), and one side of the adjusting disc (336) is connected to a material discharge adjusting assembly (340) for driving the adjusting disc (336) to move along the inner wall of the quantitative bin (335).

6. The agricultural fertilizer precision application device according to claim 5, characterized in that: A lower opening is provided at the bottom end of the guide ring (331), and the guide member comprises an upper guide tube (333) and a lower guide tube (334). The bottom end of the lower opening is connected to the interior of the corresponding upper guide tube (333), the lower end outer wall of the upper guide tube (333) is slidably connected to the lower guide tube (334), and the bottom end of the lower guide tube (334) is connected to the bottom end of the corresponding positioning tube (221).

7. The agricultural fertilizer precision application device according to claim 5, characterized in that: The material unloading drive assembly (320) comprises a B rotating drive member (321) and a transmission shaft (322); a material guide plate (332) is fixedly sleeved outside the transmission shaft (322); and an output shaft end of the B rotating drive member (321) is connected to the transmission shaft (322) via a transmission belt.

8. The agricultural fertilizer precision application device according to claim 7, characterized in that: The material unloading adjustment component (340) includes a movable driving member and two groups of adjusting members, the two adjusting members correspond one to one with the two material guide members, the adjusting members include a plurality of connecting members (341), the plurality of connecting members (341) correspond one to one with the plurality of adjusting disks (336), one end of the plurality of connecting members (341) is fixedly connected to the corresponding adjusting disk (336), the other end of the plurality of connecting members (341) is hinged with a push rod (342), one end of the plurality of push rods (342) away from the connecting member (341) is hinged with the same movable ring (343), and one side of the movable ring (343) is connected to a movable driving member for driving the movable ring (343) to move axially along the material guide disk (332).

9. The agricultural fertilizer precision application device according to claim 8, characterized in that: The mobile driving member comprises a C rotating driving member (344), a transmission sleeve (345), two guide rods (346) and two internally threaded sleeves (347). The transmission sleeve (345) is rotatably mounted on the outside of the transmission shaft (322). Two thread grooves are symmetrically provided on the transmission sleeve (345). The transmission sleeve (345) is threadedly connected to the two internally threaded sleeves (347) through the two thread grooves thereon. The two internally threaded sleeves (347) correspond to the moving rings (343) in the two adjusting members one by one. The outer side walls of the two internally threaded sleeves (347) are rotatably connected to the corresponding moving rings (343). One end of the two guide rods (346) is fixedly connected to the mounting frame (100) respectively. The outer side walls of the two guide rods (346) are slidably connected to the internally threaded sleeves (347) on one side thereof. The output shaft end of the C rotating driving member (344) is transmission-connected to the transmission sleeve (345) through a transmission belt.

10. The agricultural fertilizer precision application device according to claim 1, characterized in that: A support seat (400) is provided at the bottom end of the positioning cylinder (221).

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