An agricultural field fertilizing device and method of use

Abstract

This invention relates to the field of agricultural equipment technology, specifically to a farmland fertilization device and its usage method. The device includes an adjustment mechanism with a drive mechanism fixedly mounted on it, and two symmetrically sliding hole-applying mechanisms. In this invention, the rotating roller continues to rotate, causing the pressure rod and the linkage plate to separate. The sliding frame, pulled by a tension spring, separates the insertion rod from the soil, causing the fixed box to lose its limit and slide back to its initial position under the pressure of a compression spring, facilitating the next hole-applying operation. When the roller at the end of the moving frame moves to the hole-opening position, the soil-covering plates on both sides cover the hole with soil, completing the post-application soil covering. By installing this fertilization device with an agricultural machine, the machine can automatically perform hole-applying operations on farmland with different row spacings during operation, replacing manual fertilization, improving fertilization efficiency, and enabling quantitative fertilization, thus reducing fertilizer waste.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, specifically to a farmland fertilization device and its usage method. Background Technology

[0002] When the soil cannot provide the nutrients needed for crop growth and development, the act of artificially supplementing crops with nutrients is called fertilization. Whether organic or inorganic fertilizers are applied, soil nutrients can be increased. Most inorganic fertilizers are easy to dissolve, and after application, in addition to some being absorbed and stored by the soil, crops can absorb them immediately.

[0003] Soil physical environment primarily affects the supply of water and air to crops, and also directly influences the supply and retention of nutrients. In fertile soil, the solid phase accounts for more than half of the total soil volume, while the remaining less than half is filled with water and air. Soil pores not only supply water and air to crops but also play a vital role in crop growth, directly affecting nutrient diffusion within the soil. Soil clay, organic matter, and acidity are important factors influencing the soil chemical environment. Soil nutrients play a crucial role in plant growth when fertilized. Farmland fertilization includes various methods such as furrow application, hole application, and broadcasting. Most existing fertilization devices installed at the rear of agricultural tractors use furrow application. Hole application, compared to furrow application, reduces fertilizer loss and waste and is less likely to damage plant roots. Current hole application methods mostly rely on manual application using fertilizer applicators, resulting in low efficiency. Therefore, there is a lack of automated hole application devices that can be connected to agricultural machinery. Summary of the Invention

[0004] To overcome the aforementioned technical problems, the present invention aims to provide a farmland fertilization device and its usage method. The device involves fixing a mounting plate to the rear of an agricultural tractor, then rotating a handle to rotate a screw, which in turn moves a threaded plate. The threaded plate drives the linkage rods at both ends to rotate, and the ends of the linkage rods move a sliding block and a moving frame along a limiting post, thereby adjusting the distance between the two hole-applying mechanisms. This allows the fertilization device to automatically apply fertilizer to farmland with different row spacings. Rotating the roller causes the pressure rod and its end pressure wheel to contact the pressure plate, causing the pressure plate and linkage plate to descend. Simultaneously, this causes the sliding frame and four insert rods to insert into the soil to position the fixed box. Afterward, the pressure rod and its end pressure wheel separate from the pressure plate, allowing the sliding box to be positioned by multiple return springs. As the device slides upwards, the conical cylinder first separates from the soil. Then, as the gear moves upwards, it meshes with the toothed plate, driving the two conical cylinders to open. This allows the fertilizer in the feeding cylinder to fall into the opening position, completing the automatic fertilization operation. The rotating roller continues to rotate, causing the pressure rod and linkage plate to separate. Under the pull of the tension spring, the sliding frame separates the insertion rod from the soil, causing the fixed box to lose its limit and slide back to its initial position under the compression spring, facilitating the next hole application operation. When the roller at the end of the moving frame moves to the opening position, the soil covering plates on both sides cover the opening position with soil, completing the post-application soil covering. By installing this fertilization device with agricultural machinery, the machinery can automatically perform hole application operations on farmland with different ridge spacings during operation, replacing manual fertilization, improving fertilization efficiency, and enabling quantitative fertilization, reducing fertilizer waste.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A farmland fertilization device includes an adjustment mechanism, on which a driving mechanism is fixedly mounted, and two hole application mechanisms are symmetrically slidably mounted.

[0007] The hole application mechanism includes a fixed box, with sliding columns fixedly connected to opposite side walls of the fixed box. A toothed plate is fixedly connected to the outer wall of the fixed box. A sliding box is slidably embedded inside the fixed box. Four positioning seats are symmetrically fixedly connected to the bottom of the sliding box about its vertical center plane. A rotating shaft is rotatably connected between two of the positioning seats. A conical cylinder is fixedly connected to the outer wall of the rotating shaft. A gear that meshes with the toothed plate is fixedly sleeved at the end of the rotating shaft. A torsion spring is fixedly sleeved at the end of the rotating shaft. A linkage plate is fixedly connected to the center line of the side wall of the sliding box. Four return springs are symmetrically fixedly connected to the top of the sliding box about its vertical center plane. A top cover fixedly connected to the fixed box is fixedly connected between the tops of the four return springs. A fertilizer box is fixedly connected to the center of the top of the top cover.

[0008] Furthermore, the adjustment mechanism includes two movable frames that are slidably sleeved with the sliding column. Each end of the two movable frames is fixedly connected to a sliding block. A limiting column is slidably sleeved between the two sliding blocks. A mounting plate is fixedly connected to one side of the limiting column. A limiting frame is fixedly connected to the inner wall of the movable frame. Two limiting blocks are symmetrically slidably sleeved on the limiting frame. A pressure plate is fixedly connected to the side wall of one limiting block. A linkage plate is slidably sleeved with the pressure plate. A pressure plate is fixedly connected to the side wall of the other limiting block. Two connecting arms are symmetrically fixedly connected to the bottom of the movable frame. Rollers are rotatably connected between the two connecting arms. Two soil-covering plates are symmetrically fixedly connected to the bottom of the movable frame. The soil-covering plates can be used to move the soil to the hole opening position, thus enabling soil covering after the application of fertilizer, thereby reducing fertilizer volatilization.

[0009] Furthermore, the driving mechanism includes two positioning plates fixedly connected to the mounting plate, a driving shaft rotatably connected between the positioning plates, a transmission box located at the center of the driving shaft, a connecting shaft rotatably connected to the transmission box, two rotating rollers symmetrically slidably sleeved on the outer wall of the driving shaft, and connecting seats fixedly connected to the movable frame at both ends of the two rotating rollers. Pressure rod one and pressure rod two are fixedly connected to the outer wall of the rotating rollers, and pressure rollers are rotatably connected to the ends of pressure rod one and pressure rod two. The pressure rollers can support the movable frame, etc., and facilitate the movement and fertilization of the hole application mechanism.

[0010] Furthermore, a compression spring is fixedly connected to the side wall of the fixed box and is fixedly connected to the inner wall of the movable frame. The compression spring can compress the fixed box to return to its initial position after the cavitation mechanism completes the cavitation operation.

[0011] Furthermore, a sliding frame is slidably sleeved on the outer wall of the fixed box, and two insertion rods are symmetrically fixedly connected to the opposite outer walls of the sliding frame. Two tension springs fixed to the outer wall of the fixed box are symmetrically fixedly connected to the top of the sliding frame. A limiting frame fixed to the side wall of the fixed box is slidably connected to the fixed box, and a linkage plate two slidably sleeved with the pressure plate two is fixedly connected to the top of the sliding frame. The limiting frame can limit the sliding frame, allowing the sliding frame to descend along the limiting frame and allowing the insertion rods to be inserted into the soil.

[0012] Furthermore, the bottom of the fertilizer box is fixedly connected to a storage cylinder that communicates with its interior. The bottom of the storage cylinder has multiple discharge holes circumferentially spaced. A feed cylinder is slidably sleeved at the bottom of the storage cylinder. The feed cylinder is fixedly connected to the inner wall of the sliding box. The inner wall of the feed cylinder can block the discharge holes, thereby preventing fertilizer from falling randomly and reducing fertilizer costs.

[0013] Furthermore, a screw is rotatably connected to the inner wall of the mounting plate, and a rotating handle is fixedly connected to the end of the screw. A threaded plate is screwed onto the screw, and one end of two linkage rods is symmetrically rotatably connected to the threaded plate. The other end of the linkage rods is rotatably connected to a sliding block. The screw can drive the threaded plate to move, and the two ends of the threaded plate can drive the linkage rods to rotate. The linkage rods can drive the two abutment mechanisms to move, thereby adjusting the distance between them.

[0014] A method for using a farmland fertilization device includes the following steps:

[0015] Step 1: The mounting plate can be fixedly installed to the rear of the agricultural tractor. Then, by turning the handle, the screw can be rotated, which in turn drives the threaded plate to move. The threaded plate drives the linkage rods at both ends to rotate. The ends of the linkage rods can drive the sliding block and the moving frame to slide along the limit post, thereby adjusting the distance between the two hole-applying mechanisms.

[0016] Step Two: During the operation of the agricultural tractor, the pressure lever can drive the pressure plate to press down. Since the linkage plate and the pressure plate are slidably connected, the pressure plate can drive the sliding box to slide down in the fixed box. This allows the two gears to mesh and rotate with the gear plate, which in turn drives the two shafts and the conical cylinder on the outer wall to rotate and close. After the two conical cylinders are closed, they can continue to descend and insert into the farmland, allowing the conical cylinders to open holes in the farmland. The descent of the conical cylinders prevents the inner wall of the discharge cylinder from blocking the discharge hole, allowing the fertilizer in the storage cylinder to fall from the discharge hole into the discharge cylinder.

[0017] Step 3: Then, rotating the roller will cause the pressure rod 2 and the pressure roller at its end to come into contact with the pressure plate 2, thereby squeezing the pressure plate 2 and the linkage plate 2 to descend. At the same time, it will drive the sliding frame and the four insertion rods to be inserted into the soil to position the fixed box.

[0018] Step 4: Then, the pressure rod one and the pressure roller and pressure plate one at the end separate, so the sliding box will slide upward under the action of multiple return springs. The conical cylinder first separates from the soil, and then the gear moves upward and meshes with the toothed plate, thereby driving the two conical cylinders to open, so that the fertilizer in the feeding cylinder can fall into the opening position to complete the fertilization operation. Finally, the rotating roller continues to rotate, causing the pressure rod two and the linkage plate two to separate. The sliding frame separates the insertion rod from the soil under the pull of the tension spring, so that the fixed box loses its limit and slides to the initial position under the compression of the compression spring.

[0019] Step 5: When the rollers at the end of the mobile frame move to the hole opening position, the soil covering plates on both sides can cover the soil to the hole opening position, thus completing the post-application soil covering.

[0020] The beneficial effects of this invention are:

[0021] 1. The mounting plate can be fixedly installed to the rear of the agricultural tractor. Then, by turning the handle, the screw can be rotated, which in turn drives the threaded plate to move. The threaded plate drives the linkage rods at both ends to rotate. The ends of the linkage rods can drive the sliding block and the moving frame to slide along the limit post, thereby adjusting the distance between the two hole application mechanisms. This allows the fertilizer application device to automatically apply fertilizer to farmland with different row spacing.

[0022] 2. The rotating roller drives the second pressure rod and its end pressure wheel to contact the second pressure plate, which in turn squeezes the second pressure plate and the second linkage plate down. At the same time, it drives the sliding frame and four insert rods to be inserted into the soil to position the fixed box. Then the first pressure rod and the end pressure wheel separate from the first pressure plate, and the sliding box slides upward under the action of multiple return springs. The conical cylinder first separates from the soil, and then the gear moves upward and meshes with the toothed plate, thereby driving the two conical cylinders to open, so that the fertilizer in the feeding cylinder can fall into the opening position, completing the automatic fertilization operation.

[0023] 3. As the rotating roller continues to rotate, the pressure rod and the linkage plate separate. Under the pull of the tension spring, the sliding frame separates the insertion rod from the soil, causing the fixed box to lose its limit and slide back to its initial position under the compression spring, thus facilitating the next hole application operation. When the roller at the end of the moving frame moves to the hole opening position, the soil covering plates on both sides can cover the soil at the hole opening position, thus completing the post-application soil covering. By installing this fertilization device with agricultural machinery, the agricultural machinery can automatically perform hole application operations on farmland with different ridge spacings during operation, replacing manual fertilization, improving fertilization efficiency, and enabling quantitative fertilization, reducing fertilizer waste. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall front view structure of this invention;

[0027] Figure 3 This is a schematic diagram of the adjustment mechanism structure in this invention;

[0028] Figure 4 This is a top view of the adjustment mechanism in this invention;

[0029] Figure 5 This is a schematic diagram of the drive mechanism structure in this invention;

[0030] Figure 6 This is a schematic diagram of the hole-applying mechanism in this invention;

[0031] Figure 7 This is a schematic diagram of the sliding box connection structure in this invention;

[0032] Figure 8 This is a schematic diagram of the sliding frame connection structure in this invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of the feed cylinder in this invention.

[0034] In the diagram: 100. Adjustment mechanism; 101. Moving frame; 102. Sliding block; 103. Limiting post; 104. Mounting plate; 105. Limiting frame; 106. Limiting block; 107. Pressure plate one; 108. Pressure plate two; 109. Covering plate; 110. Connecting arm; 111. Roller; 112. Linkage rod; 113. Threaded plate; 114. Screw; 115. Rotating handle; 200. Drive mechanism; 201. Positioning plate; 202. Drive shaft; 203. Transmission box; 204. Connecting shaft; 205. Rotating roller; 206. Connecting seat; 207. Pressure rod one; 20 8. Pressure bar II; 209. Pressure roller; 300. Hole application mechanism; 301. Fixed box; 302. Sliding column; 303. Compression spring; 304. Toothed plate; 305. Sliding box; 306. Positioning seat; 307. Rotating shaft; 308. Conical cylinder; 309. Gear; 310. Torsion spring; 311. Linkage plate I; 312. Return spring; 313. Top cover; 314. Fertilizer box; 315. Storage cylinder; 316. Discharge hole; 317. Feeding cylinder; 318. Sliding frame; 319. Tension spring; 320. Insert rod; 321. Limiting frame; 322. Linkage plate II. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-9 As shown, a farmland fertilization device includes an adjustment mechanism 100, a drive mechanism 200 fixedly mounted on the adjustment mechanism 100, and two hole application mechanisms 300 symmetrically slidably mounted on the adjustment mechanism 100.

[0037] The hole-applying mechanism 300 includes a fixed box 301. Sliding columns 302 are fixedly connected to opposite side walls of the fixed box 301. A toothed plate 304 is fixedly connected to the outer wall of the fixed box 301. A sliding box 305 is slidably embedded inside the fixed box 301. Four positioning seats 306 are symmetrically fixedly connected to the bottom end of the sliding box 305 about its vertical center plane. A rotating shaft 307 is rotatably connected between two opposite positioning seats 306. A conical cylinder 308 is fixedly connected to the outer wall of the rotating shaft 307. A gear 3 is fixedly sleeved at the end of the rotating shaft 307 and meshes with the toothed plate 304. 09. A torsion spring 310 is fixedly sleeved at the end of the rotating shaft 307. A linkage plate 311 is fixedly connected at the center line of the side wall of the sliding box 305. Four return springs 312 are fixedly fixedly connected to the top of the sliding box 305 symmetrically about its vertical center plane. A top cover 313, which is fixedly connected to the fixed box 301, is fixedly connected between the tops of the four return springs 312. A fertilizer box 314 is fixedly connected at the center of the top of the top cover 313. A compression spring 303, which is fixedly connected to the inner wall of the moving frame 101, is fixedly connected to the side wall of the fixed box 301. 03 After the hole-planting mechanism 300 completes the hole-planting operation, it can press the fixed box 301 back to its initial position; a sliding frame 318 is slidably sleeved on the outer wall of the fixed box 301, and two insert rods 320 are symmetrically fixedly connected to the opposite outer walls of the sliding frame 318. Two tension springs 319 fixed to the outer wall of the fixed box 301 are symmetrically fixedly connected to the top of the sliding frame 318. A limiting frame 321 fixed to the side wall of the fixed box 301 is slidably connected to the fixed box 301. A linkage plate 322 that is slidably sleeved with the pressure plate 108 is fixedly connected to the top of the sliding frame 318. The limiting frame 321 can limit the sliding frame 318, allowing the sliding frame 318 to descend along the limiting frame 321, so that the insertion rod 320 can be inserted into the soil. The bottom end of the fertilizer box 314 is fixedly connected to a storage cylinder 315 that communicates with its interior. The bottom end of the storage cylinder 315 has multiple discharge holes 316 that are equidistantly opened in a ring. The bottom of the storage cylinder 315 is slidably sleeved with a discharge cylinder 317, which is fixedly connected to the inner wall of the sliding box 305. The inner wall of the discharge cylinder 317 can block the discharge holes 316, thereby preventing fertilizer from falling randomly and reducing fertilizer costs.

[0038] The adjusting mechanism 100 includes two movable frames 101 that are slidably sleeved with sliding columns 302. Each movable frame 101 has a sliding block 102 fixedly connected to its end. A limiting column 103 is slidably sleeved between the two sliding blocks 102. A mounting plate 104 is fixedly connected to one side of the limiting column 103. A limiting frame 105 is fixedly connected to the inner wall of the movable frame 101. Two limiting blocks 106 are symmetrically sleeved on the limiting frame 105. A pressure plate 107 is fixedly connected to the side wall of one limiting block 106. A linkage plate 311 is slidably sleeved with the pressure plate 107. A pressure plate 108 is fixedly connected to the side wall of the other limiting block 106. Two connecting arms 110 are symmetrically fixedly connected to the bottom end of the movable frame 101. A roller 111 is rotatably connected between the two connecting arms 110. Two soil-covering plates 109 are symmetrically fixedly connected to the bottom of the mobile frame 101. The soil can be pushed to the hole opening position through the soil-covering plates 109, so that the soil can be covered after the hole application is completed, thereby reducing fertilizer volatilization. A screw 114 is rotatably connected to the inner wall of the mounting plate 104. A rotating handle 115 is fixedly connected to the end of the screw 114. A threaded plate 113 is screwed onto the screw 114. Two linkage rods 112 are symmetrically rotatably connected to one end of the threaded plate 113. The other end of the linkage rod 112 is rotatably connected to the sliding block 102. The screw 114 can drive the threaded plate 113 to move. The two ends of the threaded plate 113 can drive the linkage rods 112 to rotate. The linkage rods 112 can drive the two hole application mechanisms 300 to move, thereby adjusting the distance between them.

[0039] The drive mechanism 200 includes two positioning plates 201 fixedly connected to the mounting plate 104. A drive shaft 202 is rotatably connected between the positioning plates 201. A transmission box 203 is provided at the center of the drive shaft 202. A connecting shaft 204 is rotatably connected to the transmission box 203. Two rotating rollers 205 are symmetrically slidably sleeved on the outer wall of the drive shaft 202. Both ends of the two rotating rollers 205 are rotatably sleeved with connecting seats 206 fixedly connected to the moving frame 101. Pressure rod 1 207 and pressure rod 208 are fixedly connected to the outer wall of the rotating rollers 205. Pressure rollers 209 are rotatably connected to the ends of pressure rod 1 207 and pressure rod 208. The pressure rollers 209 can support the moving frame 101 and other components, and facilitate the moving fertilization of the hole application mechanism 300.

[0040] A method for using a farmland fertilization device includes the following steps:

[0041] Step 1: The mounting plate 104 can be fixedly installed to the rear of the agricultural tractor. Then, by turning the handle 115, the screw 114 can be rotated, so that the screw 114 can drive the threaded plate 113 to move. The threaded plate 113 can drive the linkage rods 112 at both ends to rotate. The end of the linkage rod 112 can drive the sliding block 102 and the moving frame 101 to slide along the limiting post 103, thereby adjusting the distance between the two hole-applying mechanisms 300.

[0042] Step 2: During the operation of the agricultural tractor, the pressure lever 207 can drive the pressure plate 107 to press down. Since the linkage plate 311 and the pressure plate 107 are slidably connected, the pressure plate 107 can drive the sliding box 305 to slide down in the fixed box 301. This allows the two gears 309 to mesh and rotate with the toothed plate 304, thereby driving the two rotating shafts 307 and the conical cylinder 308 on the outer wall to rotate and close. After the two conical cylinders 308 are closed, they can continue to descend and insert into the farmland, allowing the conical cylinder 308 to open holes in the farmland. The descent of the conical cylinder 308 prevents the inner wall of the discharge cylinder 317 from blocking the discharge hole 316, so that the fertilizer in the storage cylinder 315 can fall from the discharge hole 316 into the discharge cylinder 317.

[0043] Step 3: Then, rotating the roller 205 will drive the pressure rod 208 and the pressure roller 209 at its end to contact the pressure plate 108, thereby squeezing the pressure plate 108 and the linkage plate 322 to descend. At the same time, it will drive the sliding frame 318 and the four insertion rods 320 to be inserted into the soil to position the fixed box 301.

[0044] Step 4: Then, the pressure rod 207 and the end pressure roller 209 and pressure plate 107 separate, so the sliding box 305 slides upward under the action of multiple return springs 312. The conical cylinder 308 separates from the soil first, and then the gear 309 meshes with the toothed plate 304 during the upward movement, thereby driving the two conical cylinders 308 to open, so that the fertilizer in the feeding cylinder 317 can fall into the opening position to complete the fertilization operation. Finally, the rotating roller 205 continues to rotate, causing the pressure rod 208 and the linkage plate 222 to separate. The sliding frame 318 separates the insertion rod 320 from the soil under the pull of the tension spring 319, so that the fixed box 301 loses its limit and slides to the initial position under the compression of the compression spring 303.

[0045] Step 5: When the roller 111 at the end of the moving frame 101 moves to the opening position, the soil covering plates 109 on both sides can cover the soil to the opening position, thereby completing the post-application soil covering.

[0046] Working principle: When in use, the mounting plate 104 can be fixedly installed to the rear of the agricultural tractor. Then, by turning the handle 115, the screw 114 can be rotated, which in turn drives the threaded plate 113 to move. The threaded plate 113 drives the linkage rods 112 at both ends to rotate. The ends of the linkage rods 112 can drive the sliding block 102 and the moving frame 101 to slide along the limiting post 103, thereby adjusting the distance between the two hole application mechanisms 300, so that the fertilizer application device can automatically perform hole application operation on farmland with different row spacing.

[0047] During the operation of the agricultural tractor, the drive unit of the agricultural machine can drive the connecting shaft 204 to rotate, and then the connecting shaft 204 can drive the two rotating rollers 205 to rotate. The pressure rod 207 on the outer wall of the rotating roller 205 and the pressure wheel 209 at its end can first contact the top of the pressure plate 107. The pressure rod 207 can drive the pressure plate 107 to press down. Since the linkage plate 311 and the pressure plate 107 are slidably sleeved, the pressure plate 107 can drive the sliding box 305 to slide downward in the fixed box 301. This allows the two gears 309 to mesh and rotate with the toothed plate 304, which in turn drives the two rotating shafts 307 and the conical cylinder 308 on the outer wall to rotate and close. After the two conical cylinders 308 are closed, they can continue to descend and be inserted into the farmland, allowing the conical cylinder 308 to make holes in the farmland. The descent of the conical cylinder 308 can simultaneously drive the discharge cylinder 317 to descend, so that the inner wall of the discharge cylinder 317 will no longer block the discharge hole 316, and the fertilizer in the storage cylinder 315 can fall from the discharge hole 316 into the discharge cylinder 317.

[0048] After the conical cylinder 308 is inserted into the soil, the fixed box 301 remains in position. Since the agricultural machine is still moving slowly, the sliding column 302 on the outer wall of the fixed box 301 can slide on the moving frame 101. Then, the rotating roller 205 drives the pressure rod 208 and its end pressure wheel 209 to contact the pressure plate 108, thus squeezing the pressure plate 108 and the linkage plate 322 downwards. Simultaneously, it drives the sliding frame 318 and the four insertion rods 320 to insert into the soil to position the fixed box 301. Afterwards, the pressure rod 207 and its end pressure wheel 209 separate from the pressure plate 107, causing the sliding box 305 to slide upwards under the action of multiple return springs 312. The conical cylinder 308 first separates from the soil, and then the gear 309 meshes with the toothed plate 304 during its upward movement, thereby driving the two conical cylinders 308 to open and close. The fertilizer in the feed cylinder 317 is opened, allowing it to fall into the opening position and complete the fertilization operation. Finally, the rotating roller 205 continues to rotate, causing the pressure rod 208 and the linkage plate 322 to separate. The sliding frame 318, pulled by the tension spring 319, causes the insertion rod 320 to separate from the soil, thus the fixed box 301 loses its limit and slides back to its initial position under the compression spring 303, facilitating the next hole application operation. When the roller 111 at the end of the moving frame 101 moves to the opening position, the soil covering plates 109 on both sides can cover the soil at the opening position, thus completing the post-application soil covering. By installing this fertilization device with an agricultural machine, the agricultural machine can automatically perform hole application operations on farmland with different ridge spacings during operation, replacing manual fertilization, improving fertilization efficiency, and enabling quantitative fertilization, reducing fertilizer waste.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A farmland fertilization device, characterized in that, It includes an adjustment mechanism (100), on which a drive mechanism (200) is fixedly mounted, and two acupoint application mechanisms (300) are symmetrically slidably mounted on the adjustment mechanism (100). The hole-applying mechanism (300) includes a fixed box (301), on which sliding columns (302) are fixedly connected to opposite side walls. A toothed plate (304) is fixedly connected to the outer wall of the fixed box (301). A sliding box (305) is slidably embedded inside the fixed box (301). Four positioning seats (306) are symmetrically fixedly connected to the bottom end of the sliding box (305) about its vertical center plane. A rotating shaft (307) is rotatably connected between two of the positioning seats (306). A conical cylinder (308) is fixedly connected to the outer wall of the rotating shaft (307). The end of the shaft (307) is fixedly sleeved with a gear (309) that meshes with the toothed plate (304). The end of the shaft (307) is fixedly sleeved with a torsion spring (310). A linkage plate (311) is fixedly connected at the center line of the side wall of the sliding box (305). Four return springs (312) are fixedly connected symmetrically about its vertical center plane on the top of the sliding box (305). A top cover (313) fixedly connected to the fixed box (301) is fixedly connected between the top ends of the four return springs (312). A fertilizer box (314) is fixedly connected at the center of the top of the top cover (313). The adjusting mechanism (100) includes two movable frames (101) that are slidably sleeved with the sliding column (302). Each of the two movable frames (101) has a sliding block (102) fixedly connected to its end. A limiting column (103) is slidably sleeved between the two sliding blocks (102). A mounting plate (104) is fixedly connected to one side of the limiting column (103). A limiting frame (105) is fixedly connected to the inner wall of the movable frame (101). Two limiting blocks (104) are symmetrically slidably sleeved on the limiting frame (105). 06), a pressure plate one (107) is fixedly connected to the side wall of one of the limiting blocks (106), the linkage plate one (311) is slidably sleeved with the pressure plate one (107), a pressure plate two (108) is fixedly connected to the side wall of the other limiting block (106), two connecting arms (110) are symmetrically fixedly connected to the bottom end of the moving frame (101), a roller (111) is rotatably connected between the two connecting arms (110), and two soil covering plates (109) are symmetrically fixedly connected to the bottom of the moving frame (101).

2. The farmland fertilization device according to claim 1, characterized in that, The drive mechanism (200) includes two positioning plates (201) fixedly connected to the mounting plate (104). A drive shaft (202) is rotatably connected between the positioning plates (201). A transmission box (203) is provided at the center of the drive shaft (202). A connecting shaft (204) is rotatably connected to the transmission box (203). Two rotating rollers (205) are symmetrically slidably sleeved on the outer wall of the drive shaft (202). Both ends of the two rotating rollers (205) are rotatably sleeved with connecting seats (206) fixedly connected to the moving frame (101). A pressure rod one (207) and a pressure rod two (208) are fixedly connected to the outer wall of the rotating rollers (205). A pressure wheel (209) is rotatably connected to the ends of the pressure rod one (207) and the pressure rod two (208).

3. The farmland fertilization device according to claim 2, characterized in that, A compression spring (303) is fixedly connected to the side wall of the fixed box (301) and is fixedly connected to the inner wall of the movable frame (101).

4. A farmland fertilization device according to claim 3, characterized in that, A sliding frame (318) is slidably sleeved on the outer wall of the fixed box (301). Two insert rods (320) are symmetrically fixedly connected on the opposite outer walls of the sliding frame (318). Two tension springs (319) fixed to the outer wall of the fixed box (301) are symmetrically fixedly connected to the top of the sliding frame (318). A limiting frame (321) fixed to the side wall of the fixed box (301) is slidably connected on the fixed box (301). A linkage plate (322) is fixedly connected to the top of the sliding frame (318) and is slidably sleeved with the pressure plate (108).

5. A farmland fertilization device according to claim 4, characterized in that, The bottom end of the fertilizer box (314) is fixedly connected to a storage cylinder (315) that communicates with its interior. The bottom end of the storage cylinder (315) is provided with a plurality of discharge holes (316) at equal intervals in a ring. The bottom of the storage cylinder (315) is slidably sleeved with a discharge cylinder (317), which is fixedly connected to the inner wall of the sliding box (305).

6. A farmland fertilization device according to claim 5, characterized in that, A screw (114) is rotatably connected to the inner wall of the mounting plate (104). A rotating handle (115) is fixedly connected to the end of the screw (114). A threaded plate (113) is screwed onto the screw (114). Two linkage rods (112) are symmetrically rotatably connected to one end of the threaded plate (113). The other end of the linkage rods (112) is rotatably connected to the sliding block (102).

7. The method of using a farmland fertilization device according to claim 6, characterized in that, Specifically, the following steps are included: Step 1: The mounting plate (104) can be fixedly installed with the tail of the agricultural tractor. Then, by turning the handle (115), the screw (114) can be rotated, so that the screw (114) can drive the threaded plate (113) to move. The threaded plate (113) can drive the linkage rods (112) at both ends to rotate. The end of the linkage rod (112) can drive the sliding block (102) and the moving frame (101) to slide along the limiting post (103), thereby adjusting the distance between the two hole-applying mechanisms (300). Step 2: During the operation of the agricultural tractor, the pressure rod (207) can drive the pressure plate (107) to press down. Since the linkage plate (311) and the pressure plate (107) are slidably connected, the pressure plate (107) can drive the sliding box (305) to slide down in the fixed box (301). This allows the two gears (309) to mesh and rotate with the tooth plate (304), which in turn drives the two rotating shafts (307) and the conical cylinder (308) on the outer wall to rotate and close. After the two conical cylinders (308) are closed, they can continue to descend and be inserted into the farmland, allowing the conical cylinder (308) to open holes in the farmland. The descent of the conical cylinder (308) causes the inner wall of the discharge cylinder (317) to no longer block the discharge hole (316), so that the fertilizer in the storage cylinder (315) can fall from the discharge hole (316) into the discharge cylinder (317). Step 3: Then the rotating roller (205) will drive the pressure rod (208) and its end pressure wheel (209) to contact the pressure plate (108), thereby squeezing the pressure plate (108) and the linkage plate (322) down, while driving the sliding frame (318) and the four insertion rods (320) to insert into the soil to position the fixed box (301); Step 4: Then, the pressure rod (207) and the end pressure roller (209) and pressure plate (107) separate, so the sliding box (305) slides upward under the action of multiple return springs (312). The conical cylinder (308) separates from the soil first, and then the gear (309) meshes with the toothed plate (304) during the upward movement, thereby driving the two conical cylinders (308) to open, so that the fertilizer in the feeding cylinder (317) can fall into the opening position to complete the fertilization operation. Finally, the rotating roller (205) continues to rotate, causing the pressure rod (208) and the linkage plate (322) to separate. The sliding frame (318) separates the insertion rod (320) from the soil under the pull of the tension spring (319), so that the fixed box (301) loses its limit and slides to the initial position under the compression of the compression spring (303). Step 5: When the roller (111) at the end of the moving frame (101) moves to the opening position, the soil covering plates (109) on both sides can cover the soil to the opening position, thereby completing the post-application soil covering.

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