Automatic fertilizing device and method for selenium-rich rice planting

Abstract

The invention discloses an automatic fertilizing device and method for selenium-rich rice planting, relates to the technical field of rice planting, and aims to solve the technical problems that in current rice planting, selenium-rich fertilizer is directly sprayed to the surface of soil and is prone to being wasted in evaporation and rain wash, and consequently the use amount of the selenium fertilizer is not easy to control. The punching system is arranged to punch holes in the soil on the two sides of the rice, the feeding pipe can rotate in the holes for feeding, fertilizer directly enters the deep position of the soil, and the feeding pipe can be inserted near the root system of the rice to inject the fertilizer through the propelling assembly. According to the invention, the holes are formed beside the soil for rice planting, the fertilizer is spread at the bottom of the holes, and the feeding pipe can be inserted near the root system of the rice to inject the fertilizer, so that the evaporation loss of the fertilizer is reduced, the fertilizer is more easily and directly absorbed by the rice, and the usage amount of the fertilizer in selenium-enriched planting is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of rice planting, and more specifically to an automatic fertilization device and method for selenium-enriched rice planting. Background Art

[0002] An appropriate amount of selenium can enhance the antioxidant capacity and immunity of rice and improve its resistance to diseases. Studies have shown that selenium-rich rice is relatively resistant to common rice diseases such as rice blast and sheath blight. This is because selenium can activate the rice's own defense system and induce the production of disease-resistant related proteins, thereby reducing the chance of disease and reducing the use of pesticides. Selenium-rich planting can improve the quality of rice, and the content and quality of other nutrients such as protein in selenium-rich rice are also improved, which makes selenium-rich rice have obvious advantages in nutrition and quality.

[0003] However, the existing selenium-enriched rice planting often directly sprays fertilizer on the surface of the soil. This method requires more fertilizer to meet the selenium-enriched standard, but most of the fertilizer is easily wasted in evaporation and rainwater erosion. In this way, the use of selenium fertilizer needs to be increased, but excessive application of selenium may cause selenium poisoning, which has an adverse effect on rice growth and also causes environmental pollution; and insufficient application of selenium cannot meet the standard of selenium-enriched rice. In view of this, we propose an automatic fertilization device and method for selenium-enriched rice planting. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, meet actual needs, and provide an automatic fertilization device and method for selenium-enriched rice planting, so as to solve the technical problem that selenium-rich fertilizers are directly sprayed onto the soil surface in current rice planting, which is easily wasted in evaporation and rainwater erosion, resulting in difficulty in controlling the amount of selenium fertilizer.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic fertilizing device for selenium-enriched rice planting, comprising a vehicle body, two drive systems arranged at the front end of the vehicle body, a hole punching system arranged at the mobile end of the drive system at the far end of the vehicle body, and a fertilizer conveying system arranged at the mobile end of the drive system at the near end of the vehicle body; A three-axis driving device is installed at the top of the vehicle body, and a fertilizer box is installed at the moving end of the three-axis driving device; The fertilizer conveying system includes a connecting rod, a second rotating motor, a propulsion assembly, a feeding pipe, and a feeding port; the connecting rod is arranged at the moving end of the driving system, the second rotating motor is installed at the bottom end of the connecting rod, the propulsion assembly is arranged at the output end of the second rotating motor, the feeding pipe is arranged at the output end of the propulsion assembly, a feeding port is opened at the front end of the feeding pipe, and the feeding pipe is connected to the fertilizer box through a conveying pipe.

[0006] Preferably, the drive system comprises a linear drive device, a connecting arm, a bracket, a cylinder, a guide rail, and a guide plate; The linear drive device is installed on the fertilizer box, the connecting arm is installed at the output end of the linear drive device, the bracket is installed at the bottom end of the connecting arm, the cylinder is installed at the inner top end of the bracket, the two guide rods are installed on both sides of the bracket, the guide plate is slidably connected to the two guide rails, and the guide plate is installed at the output end of the cylinder.

[0007] Preferably, the drilling system comprises a first rotary motor and a drilling rod, wherein the first rotary motor is mounted on the guide plate, and the drilling rod is mounted at an output end of the first rotary motor.

[0008] Preferably, the propulsion assembly comprises a mounting plate, a limiting groove, a limiting block, a driving rod, a driving plate, a driving track, and a rotating rod; The mounting disk is mounted on the output end of the second rotating motor, and a plurality of limit grooves are equidistantly arranged in an annular shape at the bottom end of the mounting disk. The limit block is slidably connected in the limit groove, and the limit block is connected to the feeding pipe. The driving rod is mounted on one side of the bottom end of the limit block, and the driving rod is slidably connected in the driving track. A plurality of driving tracks are equidistantly arranged in annular shapes on the driving disk. The rotating rod is mounted at the center of the driving disk, and the top end of the rotating rod is rotatably connected to the mounting disk. A power structure is arranged on the mounting disk, and the output end of the power structure is arranged on the rotating rod. The driving track is an arc-shaped groove, and a plurality of driving tracks are radially distributed on the driving disk.

[0009] Preferably, the power structure further comprises a third rotating motor and a transmission belt; The third rotating motor is installed on the top of the mounting plate, and the output end of the third rotating motor is connected to the rotating rod through a transmission belt.

[0010] Preferably, a telescopic excavation assembly is provided on the limit block, and the telescopic excavation assembly includes a fourth rotary motor, a driving screw, a movable screw sleeve, a containing shell, and an excavation rod; The fourth rotating motor is installed in the limit block, the driving screw is installed at the output end of the fourth rotating motor, the movable screw sleeve is threadedly connected to the driving screw, the accommodating shell is installed on the movable screw sleeve, the tunneling rod is rotatably connected in the accommodating shell through the driving structure, and the tunneling rod is sleeved on the outside of the feed pipe, a discharge port is opened at the front end of the tunneling rod, and the tunneling rod is connected to the feed pipe.

[0011] Preferably, the telescopic tunneling assembly further comprises a driving structure, wherein the driving structure comprises a fifth rotating motor, a first transmission gear, and a second transmission gear; The fifth rotating motor is installed in the accommodating shell, the first transmission gear is installed at the output end of the fifth rotating motor, and the first transmission gear is rotatably connected in the accommodating shell, the second transmission gear is meshed and connected below the first transmission gear, and the second transmission gear is installed on the outside of the excavation rod.

[0012] Preferably, the telescopic excavation assembly further comprises a pipe diameter contraction structure, and the pipe diameter contraction structure comprises a protruding shell, a rubber ring, an ejection plate, a connecting shaft, a torsion spring, and an ejection arc surface; The protruding shell is installed at the rear end of the tunneling rod, the rubber ring is installed at the connection point between the protruding shell and the internal pipeline of the tunneling rod, and a number of ejection plates are equidistantly annularly fitted on the outside of the rubber ring. The connecting shaft is installed at the top of the ejection plate, and the connecting shaft is rotatably connected to the protruding shell. The connecting shaft and the protruding shell are also connected to each other by a torsion spring. The ejection arc surface is opened on the ejection plate, and the ejection arc surface faces the feeding pipe.

[0013] Preferably, a retaining structure is provided on the limit block, and the retaining structure includes a blocking sleeve, a convex buckle, a receiving groove, a clamping plate, a spring, and a clamping plate groove; The blocking sleeve is sleeved on the limit block, the convex buckle is installed on the inner side of the blocking sleeve, and the convex buckle is connected to the limit block, the two receiving grooves are respectively opened on both sides of the outside of the blocking sleeve, one end of the clamping plate is rotatably connected in the adapted receiving groove, the other end of the clamping plate is connected to the receiving groove through a spring, the clamping plate is buckled in the clamping plate groove, and the two clamping plate grooves are respectively opened on both sides of the limit groove.

[0014] A method for using an automatic fertilization device for selenium-enriched rice planting comprises the following steps: S1: Divide the rice field into long strips, separate the strips by passages, and then use the fertilizer application device to carry out construction along the strips; S2: The vehicle body drives the drilling system to move, and the driving system drives the drilling system to move. The drilling rod in the drilling system drills holes in the rice field. Then the drilling system is reset, and the driving system drives the fertilizer conveying system to move into the holes in the rice field. S3: The second rotating motor drives the propulsion assembly and the feeding pipe to rotate and feed the fertilizer, and the fertilizer is first sprinkled into the hole, and then the feeding pipe is pushed out by the propulsion assembly, so that the feeding pipe is inserted into the soil near the hole, and the fertilizer is transported into the soil. When the feeding pipe is pushed out, the retaining structure also moves accordingly, covering the limit groove to prevent soil from entering and causing blockage; S4: When it is necessary to transport fertilizer in the long axis direction of the long strip block, the tunneling rod in the long axis direction is inserted into the soil through the operation of the telescopic tunneling assembly. After the tunneling rod is extended, the tube diameter contraction structure works to shrink the tube diameter at the rear end of the tunneling rod. The tunneling rod and the feed pipe cooperate to form a Venturi tube, which increases the flow rate of fertilizer inside the tunneling rod and reduces the time for transporting it to the end of the long axis.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention makes holes in the soil on both sides of the rice by setting a hole-making system, and through the second rotating motor and the propulsion assembly, the feeding pipe can be rotated in the hole for feeding, so that the fertilizer directly enters the deep soil, and it is not easy to produce evaporation loss. The feeding pipe can be inserted into the vicinity of the root system of the rice to inject fertilizer through the propulsion assembly, so that the fertilizer is more easily absorbed by the rice, thereby using less fertilizer to achieve the effect of selenium enrichment. The present invention makes holes next to the soil where rice is planted, and spreads fertilizer at the bottom of the hole. At the same time, the feeding pipe can be inserted into the vicinity of the root system of the rice to inject fertilizer, which reduces the evaporation loss of fertilizer, and is more easily absorbed directly by the rice, saving the amount of fertilizer used in selenium-enriched planting.

[0016] 2. The present invention is provided with a power structure on the basis of the propulsion assembly, and the power structure is used to rotate the driving disc. The driving disc, through the cooperation of the driving track and the driving rod, synchronously drives multiple limit blocks located in multiple limit grooves to extend synchronously, so that the feeding pipe can be inserted into multiple positions inside the hole at the same time for feeding, so that the fertilizer can be evenly injected into multiple positions of the soil. The present invention sets a propulsion assembly to push multiple feeding pipes to move synchronously, and diffusely insert them into the nearby soil, so that the fertilizer is evenly injected into multiple positions of the soil, optimizing the distribution structure of the fertilizer in the soil, thereby further reducing the waste of fertilizer.

[0017] 3. The present invention is provided with a telescopic excavation assembly on the basis of the feed pipe, and the excavation rod can be extended and retracted through the cooperation of the fourth rotary motor, the driving screw and the movable screw sleeve. The driving structure can drive the excavation rod to rotate and excavate, and the ability of the feed pipe to be inserted into harder soil is also improved. The present invention is provided with an excavation rod that can be extended and rotated on the feed pipe, and the excavation rod improves the ability of the feed pipe to drill into harder soil, making it easier to insert near the rice root system to inject fertilizer.

[0018] 4. The present invention provides a pipe diameter contraction structure on the basis of the tunneling rod. When the tunneling rod moves to the front end of the feed pipe, the ejector plate is no longer limited by the feed pipe. The torsion spring and the connecting shaft rotate the ejector plate and push the rubber ring. The rubber ring contracts the pipe diameter of the tunneling rod and forms a venturi tube with the feed pipe and the tunneling rod. The venturi tube can increase the pressure for fertilizer delivery in the long axis direction while maintaining the same pressure, and reduce the turbulence of the fluid, so that the fertilizer can expand the irrigation range without destroying the underground soil structure. When the present invention is irrigating in the long axis direction, the pipe diameter contraction structure can form a venturi tube structure, increase the pressure for fertilizer delivery in the long axis direction, reduce the turbulence of the fluid, and extend the delivery range of the fertilizer.

[0019] 5. The present invention provides a retaining structure on the basis of the limit block. When the limit block moves outward, the blocking sleeve moves with the limit block through the convex buckle. When it moves to the card slot, the blocking sleeve is located at the head end of the limit slot, and the spring pushes the card to be inserted into the card slot to limit the position of the blocking sleeve, so that the blocking sleeve can prevent soil from entering the limit slot. The present invention uses the retaining structure to prevent the excavated soil from entering the limit slot to cause blockage when the excavation rod drills into the soil, thereby reducing the probability of equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the driving system and the drilling system of the present invention; Figure 3 It is a structural schematic diagram of the driving system and the fertilizer conveying system of the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the fertilizer delivery system of the present invention; Figure 5 It is a schematic structural diagram of the telescopic excavation assembly and its connecting parts of the present invention; Figure 6 It is a schematic structural diagram of the telescopic excavation assembly and its connecting parts of the present invention when the excavation rod is extended; Figure 7 It is a schematic cross-sectional structural diagram of the telescopic excavation assembly and its connecting piece of the present invention when the excavation rod is extended; Figure 8 It is a schematic structural diagram of the ejector plate and its connecting parts of the present invention; Fig. 9 This is a schematic diagram of the planning of the rice field of the present invention; Fig.10 A cross-sectional view of the excavation rod of the present invention when it is retracted; Fig.11 A cross-sectional view of the excavation rod of the present invention when extended; Fig.12 It is a schematic structural diagram of the ejector plate of the present invention.

[0021] Description of the numbers in the figure: 1. Vehicle body; 2. Drive system; 3. Drilling system; 4. Fertilizer delivery system; 5. Power structure; 6. Telescopic excavation assembly; 7. Retaining structure; 101. Three-axis driving device; 102. Fertilizer box; 103. Conveying pipe; 201, linear drive device; 202, connecting arm; 203, bracket; 204, cylinder; 205, guide rail; 206, guide plate; 301, a first rotating motor; 302, a drilling rod; 401, connecting rod; 402, second rotating motor; 403, propulsion assembly; 404, feeding pipe; 405, feeding port; 4031, mounting plate; 4032, limiting groove; 4033, limiting block; 4034, driving rod; 4035, driving plate; 4036, driving track; 4037, rotating rod; 501, a third rotating motor; 502, a transmission belt; 601, fourth rotating motor; 602, driving screw; 603, movable screw sleeve; 604, accommodating shell; 605, excavation rod; 606, driving structure; 607, pipe diameter contraction structure; 6051, discharge port; 6061, a fifth rotating motor; 6062, a first transmission gear; 6063, a second transmission gear; 6071, protruding shell; 6072, rubber ring; 6073, ejector plate; 6074, connecting shaft; 6075, torsion spring; 6076, ejector arc surface; 701, blocking sleeve; 702, convex buckle; 703, receiving groove; 704, clamping plate; 705, spring; 706, clamping plate groove. DETAILED DESCRIPTION

[0022] Embodiment 1, as Figures 1 to 6As shown, the present invention relates to an automatic fertilizing device for selenium-rich rice planting, comprising a vehicle body 1, two drive systems 2 arranged at the front end of the vehicle body 1, a drilling system 3 arranged at the mobile end of the drive system 2 at the far end of the vehicle body 1, and a fertilizer conveying system 4 arranged at the mobile end of the drive system 2 at the proximal end of the vehicle body 1; a three-axis drive device 101 is installed at the top of the vehicle body 1, and a fertilizer box 102 is installed at the mobile end of the three-axis drive device 101; the fertilizer conveying system 4 comprises a connecting rod 401, a second rotating motor 402, a propulsion assembly 403, a feeding pipe 404, and a feeding port 405; the connecting rod 401 is arranged at the mobile end of the drive system 2, the second rotating motor 402 is installed at the bottom end of the connecting rod 401, the propulsion assembly 403 is arranged at the output end of the second rotating motor 402, the feeding pipe 404 is arranged at the output end of the propulsion assembly 403, and a feeding port 405 is opened at the front end of the feeding pipe 404, and the feeding pipe 404 is connected to the fertilizer box 102 through the conveying pipe 103.

[0023] The present invention makes holes in the soil on both sides of the rice by setting a hole-making system 3, and through the second rotating motor 402 and the propulsion assembly 403, the feeding pipe 404 can be rotated in the hole for feeding, so that the fertilizer directly enters the deep soil, and it is not easy to produce evaporation loss, and the feeding pipe 404 can be inserted into the vicinity of the root system of the rice to inject fertilizer through the propulsion assembly 403, so that the fertilizer is more easily absorbed by the rice, thereby using less fertilizer to achieve the effect of selenium enrichment. The present invention makes holes next to the soil where rice is planted, and spreads fertilizer at the bottom of the hole, and the feeding pipe 404 can be inserted into the vicinity of the root system of the rice to inject fertilizer, which reduces the evaporation loss of fertilizer, and is more easily directly absorbed by the rice, saving the amount of fertilizer used in selenium-enriched planting.

[0024] Specifically, Figure 1 to Figure 2 As shown, the drive system 2 involved in the present invention includes a linear drive device 201, a connecting arm 202, a bracket 203, a cylinder 204, a guide rail 205, and a guide plate 206; the linear drive device 201 is installed on the fertilizer box 102, the connecting arm 202 is installed at the output end of the linear drive device 201, the bracket 203 is installed at the bottom end of the connecting arm 202, the cylinder 204 is installed at the inner top end of the bracket 203, two guide rods are installed on both sides of the bracket 203, the guide plate 206 is slidably connected to the two guide rails 205, and the guide plate 206 is installed at the output end of the cylinder 204.

[0025] The drilling system 3 includes a first rotary motor 301 and a drilling rod 302 . The first rotary motor 301 is mounted on the guide plate 206 , and the drilling rod 302 is mounted at the output end of the first rotary motor 301 .

[0026] It is worth noting that if Figure 3 to Figure 4As shown, the propulsion assembly 403 of the present invention includes a mounting plate 4031, a limiting groove 4032, a limiting block 4033, a driving rod 4034, a driving plate 4035, a driving track 4036, and a rotating rod 4037; the mounting plate 4031 is mounted on the output end of the second rotating motor 402, a plurality of limiting grooves 4032 are equidistantly annularly arranged at the bottom end of the mounting plate 4031, the limiting block 4033 is slidably connected in the limiting groove 4032, and the limiting block 4033 is connected to the feeding pipe 404, and the driving rod 4034 is mounted on the limiting block 40 33, and the driving rod 4034 is slidably connected in the driving track 4036, a plurality of driving tracks 4036 are equidistantly arranged in a ring on the driving disk 4035, a rotating rod 4037 is installed at the center of the driving disk 4035, and the top of the rotating rod 4037 is rotatably connected to the mounting disk 4031, a power structure 5 is arranged on the mounting disk 4031, and the output end of the power structure 5 is arranged on the rotating rod 4037, the driving track 4036 is an arc groove, and a plurality of driving tracks 4036 are radially distributed on the driving disk 4035.

[0027] The power structure 5 further includes a third rotating motor 501 and a transmission belt 502 ; the third rotating motor 501 is mounted on the top of the mounting plate 4031 , and the output end of the third rotating motor 501 is connected to the rotating rod 4037 via the transmission belt 502 .

[0028] The present invention is provided with a power structure 5 on the basis of the propulsion assembly 403, and the power structure 5 is used to rotate the driving disc 4035. The driving disc 4035 drives the multiple limit blocks 4033 located in the multiple limit grooves 4032 to extend synchronously through the cooperation of the driving track 4036 and the driving rod 4034, so that the feeding pipe 404 can be inserted into multiple positions inside the hole at the same time for feeding, so that the fertilizer can be evenly injected into multiple positions of the soil. The present invention is provided with a propulsion assembly 403 to push the multiple feeding pipes 404 to move synchronously, and diffusely insert them into the nearby soil, so that the fertilizer is evenly injected into multiple positions of the soil, and the distribution structure of the fertilizer in the soil is optimized, thereby further reducing the waste of fertilizer.

[0029] Further, such as Figures 4 to 7As shown, the limit block 4033 involved in the present invention is provided with a telescopic excavation assembly 6, and the telescopic excavation assembly 6 includes a fourth rotating motor 601, a driving screw 602, a movable screw sleeve 603, a accommodating shell 604, and a digging rod 605; the fourth rotating motor 601 is installed in the limit block 4033, the driving screw 602 is installed at the output end of the fourth rotating motor 601, the movable screw sleeve 603 is threadedly connected to the driving screw 602, the accommodating shell 604 is installed on the movable screw sleeve 603, the digging rod 605 is rotatably connected in the accommodating shell 604 through the driving structure 606, and the digging rod 605 is sleeved on the outside of the feeding pipe 404, and a discharge port 6051 is opened at the front end of the digging rod 605, and the digging rod 605 is connected to the feeding pipe 404.

[0030] The telescopic tunneling assembly 6 also includes a driving structure 606, which includes a fifth rotating motor 6061, a first transmission gear 6062, and a second transmission gear 6063; the fifth rotating motor 6061 is installed in the accommodating shell 604, the first transmission gear 6062 is installed at the output end of the fifth rotating motor 6061, and the first transmission gear 6062 is rotatably connected in the accommodating shell 604, the second transmission gear 6063 is meshed and connected below the first transmission gear 6062, and the second transmission gear 6063 is installed on the outside of the tunneling rod 605.

[0031] The present invention is provided with a telescopic excavation assembly 6 on the basis of the feed pipe 404, and can make the excavation rod 605 telescopic through the cooperation of the fourth rotary motor 601, the driving screw 602 and the movable screw sleeve 603, and the driving structure 606 can drive the excavation rod 605 to rotate and excavate, and also improve the ability of the feed pipe 404 to be inserted into harder soil. The present invention is provided with an excavation rod 605 that can be telescopic and rotated on the feed pipe 404, and the excavation rod 605 improves the ability of the feed pipe 404 to drill into harder soil, and it is easier to insert it near the rice root system to inject fertilizer.

[0032] Further, if Figures 7 to 12As shown, the telescopic excavation assembly 6 involved in the present invention also includes a pipe diameter contraction structure 607, which includes a protruding shell 6071, a rubber ring 6072, an ejector plate 6073, a connecting shaft 6074, a torsion spring 6075, and a top arc surface 6076; the protruding shell 6071 is installed at the rear end of the excavation rod 605, the rubber ring 6072 is installed at the connection between the protruding shell 6071 and the internal pipeline of the excavation rod 605, and a plurality of ejector plates 6073 are equidistantly annularly attached to the outside of the rubber ring 6072, the connecting shaft 6074 is installed at the top of the ejector plate 6073, and the connecting shaft 6074 is rotatably connected to the protruding shell 6071, and the connecting shaft 6074 and the protruding shell 6071 are also connected to each other by a torsion spring 6075, and the top arc surface 6076 is opened on the ejector plate 6073, and the top arc surface 6076 faces the feeding pipe 404.

[0033] The present invention provides a pipe diameter contraction structure 607 on the basis of the excavation rod 605. When the excavation rod 605 moves to the front end of the feed pipe 404, the ejector plate 6073 is no longer limited by the feed pipe 404. The torsion spring 6075 and the connecting shaft 6074 rotate the ejector plate 6073 to push the rubber ring 6072. The rubber ring 6072 causes the pipe diameter of the excavation rod 605 to contract. The feed pipe 404 and the excavation rod 605 form a venturi tube. The venturi tube can increase the pressure for fertilizer delivery in the long axis direction while maintaining the same pressure, and reduce the turbulence of the fluid, so that the fertilizer can extend straighter in the long axis direction without destroying the underground soil structure, thereby expanding the irrigation range. When the present invention is irrigating in the long axis direction, the pipe diameter contraction structure 607 can form a venturi tube structure, increase the pressure for fertilizer delivery in the long axis direction, reduce the turbulence of the fluid, and extend the delivery range of the fertilizer.

[0034] Furthermore, Figures 4 to 5 As shown, a retaining structure 7 is provided on the limit block 4033, and the retaining structure 7 includes a blocking sleeve 701, a convex buckle 702, a receiving groove 703, a clamping plate 704, a spring 705, and a clamping plate groove 706; the blocking sleeve 701 is sleeved on the limit block 4033, the convex buckle 702 is installed on the inner side of the blocking sleeve 701, and the convex buckle 702 is snap-connected to the limit block 4033, two receiving grooves 703 are respectively opened on both sides of the outside of the blocking sleeve 701, one end of the clamping plate 704 is rotatably connected in the adapted receiving groove 703, and the other end of the clamping plate 704 is connected to the receiving groove 703 through a spring 705, the clamping plate 704 is snap-connected in the clamping plate groove 706, and two clamping plate grooves 706 are respectively opened on both sides of the limit groove 4032.

[0035] The present invention is provided with a retaining structure 7 on the basis of the limit block 4033. When the limit block 4033 moves outward, the blocking sleeve 701 moves with the limit block 4033 through the convex buckle 702. When it moves to the card slot 706, the blocking sleeve 701 is located at the head end of the limit slot 4032. The spring 705 pushes the card plate 704 to be inserted into the card slot 706, limiting the position of the blocking sleeve 701, so that the blocking sleeve 701 can block the soil from entering the limit slot 4032. The present invention uses the retaining structure 7 to prevent the excavated soil from entering the limit slot 4032 to cause blockage when the excavation rod 605 drills into the soil, thereby reducing the probability of equipment damage.

[0036] like Figures 1 to 12 As shown, the present invention relates to a method for using an automatic fertilization device for selenium-enriched rice planting, comprising the following steps: S1: Divide the rice field into long strips, separate the strips by passages, and then use the fertilizer application device to carry out construction along the strips; S2: The vehicle body 1 drives the drilling system 3 to move, and the driving system 2 drives the drilling system 3 to move. The drilling rod 302 in the drilling system 3 drills holes in the paddy field. Then the drilling system 3 is reset, and the driving system 2 drives the fertilizer conveying system 4 to move into the holes in the paddy field. S3: The second rotating motor 402 drives the propulsion assembly 403 and the feeding pipe 404 to rotate and feed the fertilizer, and the fertilizer is first sprinkled into the hole, and then the propulsion assembly 403 pushes the feeding pipe 404 out, so that the feeding pipe 404 is inserted into the soil near the hole, and the fertilizer is transported into the soil. When the feeding pipe 404 is pushed out, the retaining structure 7 also moves accordingly, covering the limiting groove 4032 to prevent the soil from entering and causing blockage; S4: When it is necessary to transport fertilizer to the long axis direction AA of the long strip block, the telescopic tunneling assembly 6 is used to insert the tunneling rod 605 in the long axis direction into the soil. After the tunneling rod 605 is extended, the tube diameter contraction structure 607 works to contract the tube diameter at the rear end of the tunneling rod 605. The tunneling rod 605 and the feeding pipe 404 cooperate to form a Venturi tube, and the fertilizer is transported to the long axis end through the Venturi tube.

[0037] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic fertilization device for selenium-enriched rice planting, characterized in that: It comprises a vehicle body (1), two drive systems (2) arranged at the front end of the vehicle body (1), a hole punching system (3) arranged at the mobile end of the drive system (2) at the far end of the vehicle body (1), and a fertilizer conveying system (4) arranged at the mobile end of the drive system (2) at the near end of the vehicle body (1); A three-axis driving device (101) is installed at the top of the vehicle body (1), and a fertilizer box (102) is installed at the moving end of the three-axis driving device (101); The fertilizer conveying system (4) comprises a connecting rod (401), a second rotating motor (402), a propulsion assembly (403), a feeding pipe (404), and a feeding port (405); the connecting rod (401) is arranged at the moving end of the driving system (2), the second rotating motor (402) is installed at the bottom end of the connecting rod (401), the propulsion assembly (403) is arranged at the output end of the second rotating motor (402), the feeding pipe (404) is arranged at the output end of the propulsion assembly (403), a feeding port (405) is provided at the front end of the feeding pipe (404), and the feeding pipe (404) is connected to the fertilizer box (102) via a conveying pipe (103).

2. The automatic fertilization device for selenium-enriched rice planting according to claim 1, characterized in that: The driving system (2) comprises a linear driving device (201), a connecting arm (202), a bracket (203), a cylinder (204), a guide rail (205), and a guide plate (206); The linear drive device (201) is mounted on the fertilizer box (102), the connecting arm (202) is mounted on the output end of the linear drive device (201), the bracket (203) is mounted on the bottom end of the connecting arm (202), the cylinder (204) is mounted on the inner top end of the bracket (203), the two guide rods are mounted on both sides of the bracket (203), the guide plate (206) is slidably connected to the two guide rails (205), and the guide plate (206) is mounted on the output end of the cylinder (204).

3. The automatic fertilization device for selenium-enriched rice planting according to claim 2 is characterized in that: The drilling system (3) comprises a first rotating motor (301) and a drilling rod (302), wherein the first rotating motor (301) is mounted on a guide plate (206), and the drilling rod (302) is mounted on an output end of the first rotating motor (301).

4. The automatic fertilization device for selenium-enriched rice planting according to claim 3 is characterized in that: The propulsion assembly (403) comprises a mounting plate (4031), a limiting groove (4032), a limiting block (4033), a driving rod (4034), a driving plate (4035), a driving track (4036), and a rotating rod (4037); The mounting plate (4031) is mounted on the output end of the second rotating motor (402); a plurality of the limiting grooves (4032) are equidistantly arranged in an annular shape at the bottom end of the mounting plate (4031); the limiting block (4033) is slidably connected in the limiting groove (4032); the limiting block (4033) is connected to the feeding pipe (404); the driving rod (4034) is mounted on one side of the bottom end of the limiting block (4033); the driving rod (4034) is slidably connected in the driving track (4036); and a plurality of the driving tracks ( The driving track (4036) is equidistantly annularly opened on the driving disk (4035), the rotating rod (4037) is installed at the center of the driving disk (4035), and the top end of the rotating rod (4037) is rotatably connected to the mounting disk (4031), the mounting disk (4031) is provided with a power structure (5), and the output end of the power structure (5) is provided on the rotating rod (4037), the driving track (4036) is an arc groove, and a plurality of driving tracks (4036) are radially distributed on the driving disk (4035).

5. The automatic fertilization device for selenium-enriched rice planting according to claim 4, characterized in that: The power structure (5) further includes a third rotating motor (501) and a transmission belt (502); The third rotating motor (501) is mounted on the top of the mounting plate (4031), and the output end of the third rotating motor (501) is connected to the rotating rod (4037) via a transmission belt (502).

6. The automatic fertilization device for selenium-enriched rice planting according to claim 4, characterized in that: The limit block (4033) is provided with a telescopic excavation assembly (6), and the telescopic excavation assembly (6) comprises a fourth rotating motor (601), a driving screw rod (602), a movable screw sleeve (603), a containing shell (604), and an excavation rod (605); The fourth rotating motor (601) is installed in the limit block (4033), the driving screw (602) is installed at the output end of the fourth rotating motor (601), the movable screw sleeve (603) is threadedly connected to the driving screw (602), the accommodating shell (604) is installed on the movable screw sleeve (603), the tunneling rod (605) is rotatably connected to the accommodating shell (604) through the driving structure (606), and the tunneling rod (605) is sleeved on the outside of the feed pipe (404), and a discharge port (6051) is provided at the front end of the tunneling rod (605), and the tunneling rod (605) is connected to the feed pipe (404).

7. The automatic fertilization device for selenium-enriched rice planting according to claim 6, characterized in that: The telescopic tunneling assembly (6) further comprises a driving structure (606), wherein the driving structure (606) comprises a fifth rotating motor (6061), a first transmission gear (6062), and a second transmission gear (6063); The fifth rotating motor (6061) is installed in the accommodating shell (604), the first transmission gear (6062) is installed at the output end of the fifth rotating motor (6061), and the first transmission gear (6062) is rotatably connected in the accommodating shell (604), the second transmission gear (6063) is meshedly connected below the first transmission gear (6062), and the second transmission gear (6063) is installed on the outside of the excavation rod (605).

8. The automatic fertilization device for selenium-enriched rice planting according to claim 7, characterized in that: The telescopic excavation assembly (6) further comprises a pipe diameter contraction structure (607), wherein the pipe diameter contraction structure (607) comprises a protruding shell (6071), a rubber ring (6072), an ejection plate (6073), a connecting shaft (6074), a torsion spring (6075), and an ejection arc surface (6076); The protruding shell (6071) is installed at the rear end of the tunneling rod (605), the rubber ring (6072) is installed at the connection point between the protruding shell (6071) and the internal pipeline of the tunneling rod (605), a plurality of ejection plates (6073) are equidistantly annularly fitted on the outside of the rubber ring (6072), the connecting shaft (6074) is installed at the top of the ejection plate (6073), and the connecting shaft (6074) is rotatably connected to the protruding shell (6071), the connecting shaft (6074) and the protruding shell (6071) are also connected to each other via a torsion spring (6075), and the ejection arc surface (6076) is opened on the ejection plate (6073), and the ejection arc surface (6076) faces the feeding pipe (404).

9. The automatic fertilization device for selenium-enriched rice planting according to claim 8, characterized in that: The limit block (4033) is provided with a retaining structure (7), and the retaining structure (7) comprises a retaining sleeve (701), a convex buckle (702), a receiving groove (703), a clamping plate (704), a spring (705), and a clamping plate groove (706); The blocking sleeve (701) is sleeved on the limiting block (4033), the convex buckle (702) is installed on the inner side of the blocking sleeve (701), and the convex buckle (702) is snap-connected to the limiting block (4033), the two receiving grooves (703) are respectively opened on both sides of the outside of the blocking sleeve (701), one end of the clamping plate (704) is rotatably connected in the adapted receiving groove (703), the other end of the clamping plate (704) is connected to the receiving groove (703) via a spring (705), the clamping plate (704) is snap-connected in the clamping plate groove (706), and the two clamping plate grooves (706) are respectively opened on both sides of the limiting groove (4032).

10. A method for using an automatic fertilizing device for planting selenium-enriched rice, which is applicable to the automatic fertilizing device for planting selenium-enriched rice according to claim 9, characterized in that: The steps include: S1: Divide the rice field into long strips, separate the strips by passages, and then use the fertilizer application device to carry out construction along the strips; S2: The vehicle body (1) drives the drilling system (3) to move, the driving system (2) drives the drilling system (3) to move, the drilling rod (302) in the drilling system (3) drills holes in the rice field, and then the drilling system (3) is reset, and the driving system (2) drives the fertilizer delivery system (4) to move into the holes in the rice field; S3: The second rotating motor (402) drives the propulsion assembly (403) and the feeding pipe (404) to rotate and feed the fertilizer, so that the fertilizer is first sprinkled into the hole, and then the propulsion assembly (403) pushes the feeding pipe (404) out so that the feeding pipe (404) is inserted into the soil near the hole, and the fertilizer is transported into the soil. When the feeding pipe (404) is pushed out, the retaining structure (7) also moves accordingly, covering the limiting groove (4032) to prevent the soil from entering and causing blockage; S4: When it is necessary to transport fertilizer to the long axis direction AA of the long strip block, the telescopic tunneling assembly (6) is operated to insert the tunneling rod (605) in the long axis direction into the soil. After the tunneling rod (605) is extended, the pipe diameter contraction structure (607) operates to contract the pipe diameter at the rear end of the tunneling rod (605). The tunneling rod (605) and the feeding pipe (404) cooperate to form a Venturi tube, and the fertilizer is transported to the long axis end through the Venturi tube.

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