Fertilizing device with depth adjusting structure

Abstract

The invention provides a fertilizing device with a depth adjusting structure, the fertilizing device comprises a rotating seat, a rotating frame is rotatably arranged in the rotating seat, the rotating frame is provided with a depth adjusting mechanism, and the depth adjusting mechanism is used for adjusting the fertilizing depth; the depth adjusting mechanism comprises mounting rods, sliding rails, a sliding table, a movable plate, a supporting plate, a discharging pipe and a soil turning block, the rotating frame is provided with the two mounting rods which are symmetrically distributed about the vertical center of the rotating frame, each mounting rod is fixedly provided with one sliding rail, the sliding table is arranged between the sliding rails in a sliding mode, and the movable plate is fixedly arranged on the sliding table. According to the fertilizing device with the depth adjusting structure, the inclination angle and the fertilizing depth of the discharging pipe and the soil turning block can be easily and flexibly adjusted, and the angle and the depth are independently and accurately controlled, so that an ideal farming effect can be achieved under different soil properties and crop requirements; and optimal seedbed conditions are created for seed germination and root growth.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and specifically relates to a fertilizer applicator with a depth adjustment structure. Background Technology

[0002] Agricultural fertilization equipment is a broad field, ranging from simple hand tools to highly automated intelligent systems. Its core objective is to apply fertilizers (solid or liquid) efficiently, evenly, and precisely to the vicinity of crop roots to improve fertilizer utilization, reduce waste, protect the environment, and increase yield. The core objective is to ensure that fertilizers (especially solid granular fertilizers or liquid fertilizers) are applied to the soil at the optimal and stable depth to avoid volatilization and runoff (such as with rainwater surface runoff) and to be close to the crop roots, thereby improving fertilizer utilization and operational efficiency. From simple centrifugal fertilizer spreaders to complex integrated seeding and fertilization machines, they achieve the quantitative, transporting, and distributing of fertilizers through mechanical structures (ground wheel drive, gear transmission, linkage mechanism). The core of their design lies in reliability, durability, and universal adaptability to different agronomic practices.

[0003] Existing fertilization devices with depth adjustment structures set the depth by changing the vertical position of the depth-limiting wheel (or sliding blade) relative to the furrow opener. The depth-limiting wheel is installed on each furrow opener unit and rolls directly on the uncultivated soil, providing a reference surface for the furrow opener. It is usually adjusted by bolt hole position or screw adjustment. By changing the position of the bolts fixing the depth-limiting wheel arm in a series of holes, or by rotating a screw to lift / press the depth-limiting wheel arm, the relative height difference between the tip of the furrow opener and the bottom of the depth-limiting wheel (i.e., the set depth) can be precisely changed. However, in the process of use, modern fertilization and seeding machines have been continuously widened in pursuit of work efficiency. A single machine is often equipped with a dozen or even dozens of furrow opener and fertilization units. The furrow opener and its arm on each unit are made of heavy steel and can weigh tens of kilograms. When adjusting the depth, the operator needs to loosen the heavy locking bolts one by one, and then use arm strength to resist the spring force or gravity to lift or press down the entire furrow opener unit, and then find the target position in the dazzling array of holes and re-lock it. The entire process is not only a great test of physical strength, but also means that every time the depth is adjusted, it takes tens of minutes or even hours of downtime. During the busy planting or fertilization window, such time loss is unbearable for growers. It takes a lot of time and effort to adjust the vertical position of the furrow opener. Different soil types and crops have different needs, and applying fertilizer to different soil types and crops will bring a heavy workload to the personnel. Summary of the Invention

[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing a fertilization device with a depth adjustment structure, which can easily and flexibly adjust the tilt angle of the feed pipe and the soil turning block as well as the fertilization depth. This independent and precise control of angle and depth ensures that ideal tillage results can be achieved under different soil types and crop requirements, creating optimal seedbed conditions for seed germination and root growth.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fertilization device with a depth adjustment structure, including a rotating seat, a rotating frame rotatably arranged inside the rotating seat, and a depth adjustment mechanism arranged on the rotating frame, the depth adjustment mechanism being used to adjust the depth of fertilization; The depth adjustment mechanism includes mounting rods, slide rails, sliding table, movable plate, support plate, feed pipe, and soil turning block. The rotating frame is equipped with two mounting rods symmetrically distributed around the vertical center of the rotating frame. Each mounting rod is fixedly equipped with a slide rail, and a sliding table is slidably mounted between the slide rails. A movable plate is fixedly mounted on the sliding table, and multiple support plates are fixedly mounted on the movable plate. A feed pipe is fixedly mounted on each support plate, and a soil turning block is fixedly fitted on the lower side of the outer arc surface of the feed pipe.

[0006] As a further improvement of the present invention, the depth adjustment mechanism further includes a drive platform fixedly disposed between the mounting rods. Two drive rods symmetrically distributed about the vertical center of the drive platform are slidably disposed inside the drive platform. Two driven rods symmetrically distributed about the vertical center of the drive platform are slidably disposed inside the sliding platform. A connecting rod is rotatably disposed on each drive rod. The end of the connecting rod away from the drive rod is rotatably connected to an adjacent driven rod, and the middle portions of the connecting rods are rotatably connected to each other. The depth adjustment mechanism also includes a fixed plate symmetrically fixedly disposed inside the drive platform. Adjusting screws are rotatably disposed on each fixed plate, and the adjusting screws are threadedly connected to adjacent drive rods. A dual-axis motor is disposed in the center of the drive platform, and the output shafts of the dual-axis motor are fixed to adjacent adjusting screws via couplings.

[0007] As a further improvement of the present invention, multiple limiting holes are provided on both sides of the rotating frame, and limiting bolts are inserted into both sides of the rotating seat, with the limiting bolts threadedly connected to the adjacent limiting holes respectively.

[0008] As a further improvement of the present invention, two connecting rods are fixedly arranged on the rotating base, symmetrically distributed around the vertical center of the rotating base. A fixed base is fixedly arranged between the top ends of the connecting rods, and multiple fixing holes are opened on the fixed base. A support is fixedly arranged between the connecting rods, and a fertilizer box is fixedly arranged on the support. The feeding pipe is connected to the fertilizer box through a telescopic pipe. A cover is inserted into the upper side of the fertilizer box, and a handle is fixedly arranged on the cover. A rotating rod is rotatably arranged inside the fertilizer box. Rotating plates are fixedly sleeved at both ends of the outer arc surface of the rotating rod. Multiple stirring plates are fixedly arranged between the rotating plates, evenly distributed around the transverse center of the rotating rod. A servo motor is arranged on the outside of the fertilizer box, and the output shaft of the servo motor is fixed to the rotating rod through a coupling.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, it can achieve precise control with multiple adjustable parameters. Through the cooperation of the rotating frame and the rotating seat, the tilt angle of the feed pipe and the soil turning block can be flexibly adjusted, thereby changing the soil entry angle and cutting curve to adapt to different soil conditions (such as hardness and moisture) and crop needs. The depth adjustment mechanism (a scissor brace structure composed of a drive platform, drive rod, connecting rod, and driven rod) can drive the sliding platform to rise and fall as a whole, achieving precise control of soil turning depth and fertilization depth. This independent and precise control of angle and depth ensures that ideal tillage results can be achieved under different agronomic requirements, creating the best seedbed conditions for seed germination and root growth, while achieving deep or shallow fertilization to meet the nutritional needs of different crops.

[0010] Secondly, the integration of tilling and fertilization significantly improves operational efficiency. As the tilled soil clods move forward, they cut through the soil to form soft trenches, and fertilizer is then precisely applied into the soil within the trenches through the feed pipe. This simultaneous operation mode reduces the number of times agricultural machinery needs to enter the field, lowers fuel consumption and reduces damage to the soil structure. It is particularly suitable for large-scale field operations and helps to seize the opportune time for farming. Compared to the traditional two-step operation that requires tilling before fertilization, this integrated equipment can significantly save time and labor costs.

[0011] Thirdly, it can flexibly adapt to diverse agronomic needs. By adjusting the soil turning angle and depth, it can meet the fertilization requirements of different crops (deep application for fruit trees, shallow application for lawns). The overall structure can be easily attached to tractors and other traction devices through the fixed seat, realizing the separation of power and working implements and improving the utilization rate of the implements. The mixing mechanism in the fertilizer box ensures the uniformity of fertilization.

[0012] Fourth, the servo motor drives the rotating rod to continuously and evenly agitate the fertilizer, effectively preventing the fertilizer from becoming loose or blocked in the box, ensuring good fluidity, and allowing it to quickly and smoothly enter the discharge pipe through the telescopic tube. Finally, the fertilizer is evenly applied to the turned soil, greatly improving the uniformity of fertilization and avoiding the local over-fertilization or under-fertilization phenomena common in traditional fertilization. This provides balanced nutrition for crop growth, thereby ensuring the final fertilization quality and crop yield.

[0013] Fifth, the method of precise fertilization in trenches involves applying fertilizer directly to the soil beside or below the seedbed, rather than simply scattering it on the surface. This deep application technique effectively reduces the volatilization and loss of fertilizer caused by sun exposure, rain, and wind, and especially improves the utilization rate of volatile fertilizers such as nitrogen. Concentrated fertilization brings the fertilizer closer to the crop roots, making it easier to absorb. This reduces the amount of fertilizer applied per unit area while ensuring fertilizer efficiency, thereby lowering agricultural production costs and meeting the requirements of precision agriculture and green agriculture.

[0014] Fifth, the traction device provides power and mechanizes the main operation links; the operators mainly undertake auxiliary work such as connecting the equipment and adding fertilizer, and the soil turning depth and fertilization angle can be preset through the adjustment mechanism; this greatly reduces the labor intensity of the operators and the reliance on skilled skills; the integrated operation mode also simplifies the operation process, reduces the impact of human factors on the quality of operation, and makes the fertilization operation more standardized and regulated, which helps to improve the overall operation quality. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the fertilization device with a depth adjustment structure according to the present invention; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the fertilizer application device with a depth adjustment structure according to the present invention; Figure 3 This is an enlarged structural diagram of point A of the fertilization device with a depth adjustment structure according to the present invention; Figure 4 This is a schematic diagram of the planar structure of the fertilizer application device with a depth adjustment structure according to the present invention; Figure 5 This is a schematic diagram of the internal cross-sectional structure of the fertilizer box with depth adjustment structure of the present invention.

[0017] In the diagram: 101, fixed base; 102, fixed hole; 103, connecting rod; 104, support; 105, fertilizer bin; 106, cover; 107, rotating base; 108, rotating frame; 109, limiting hole; 110, limiting bolt; 201, mounting rod; 202, slide rail; 203, sliding table; 204, movable plate; 205, support plate; 206, discharge pipe; 207, soil turning block; 208, drive table; 209, drive rod; 210, driven rod; 211, connecting rod; 212, fixed plate; 213, adjusting screw; 214, dual-axis motor; 301, rotating rod; 302, rotating plate; 303, servo motor. Detailed Implementation

[0018] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0019] like Figure 1 , 2 As shown, it includes a rotating seat 107, a rotating frame 108 is rotatably mounted inside the rotating seat 107, and a depth adjustment mechanism is provided on the rotating frame 108 for adjusting the depth of fertilization. The depth adjustment mechanism includes mounting rods 201, slide rails 202, sliding tables 203, movable plates 204, support plates 205, discharge pipes 206, and soil turning blocks 207. Two mounting rods 201 are symmetrically distributed around the vertical center of the rotating frame 108. Each mounting rod 201 is fixedly equipped with a slide rail 202. A sliding table 203 is slidably arranged between the slide rails 202. A movable plate 204 is fixedly installed on the sliding table 203. Multiple support plates 205 are fixedly installed on the movable plate 204. A discharge pipe 206 is fixedly installed on each support plate 205. Soil turning blocks 207 are fixedly sleeved on the lower side of the outer arc surface of the discharge pipe 206.

[0020] like Figure 2 , 3As shown, the depth adjustment mechanism also includes a drive platform 208 fixedly disposed between the mounting rods 201. Two drive rods 209 are slidably disposed inside the drive platform 208, symmetrically distributed around the vertical center of the drive platform 208. Two driven rods 210 are slidably disposed inside the sliding platform 203, symmetrically distributed around the vertical center of the drive platform 208. A connecting rod 211 is rotatably disposed on each drive rod 209. The end of the connecting rod 211 away from the drive rod 209 is rotatably connected to the adjacent driven rod 210, and the middle portions of the connecting rods 211 are rotatably connected to each other. The depth adjustment mechanism also includes a fixing plate 212 symmetrically fixedly disposed inside the drive platform 208. An adjusting screw 213 is rotatably disposed on each fixing plate 212, and the adjusting screw 213 is threadedly connected to the adjacent drive rod 209. A dual-axis motor 214 is disposed in the center of the drive platform 208, and the output shaft of the dual-axis motor 214 is fixed to the adjacent adjusting screw 213 via couplings.

[0021] like Figure 2 As shown, multiple limiting holes 109 are provided on both sides of the rotating frame 108, and limiting bolts 110 are inserted into both sides of the rotating seat 107. The limiting bolts 110 are threadedly connected to the adjacent limiting holes 109 respectively.

[0022] like Figure 1 , 4 As shown, two connecting rods 103 are fixedly installed on the rotating base 107, symmetrically distributed around the vertical center of the rotating base 107. A fixed base 101 is fixedly installed between the top ends of the connecting rods 103, and multiple fixing holes 102 are opened on the fixed base 101. A support 104 is fixedly installed between the connecting rods 103, and a fertilizer box 105 is fixedly installed on the support 104. The feeding pipes 206 are all connected to the fertilizer box 105 through telescopic pipes. A cover 106 is inserted into the upper side of the fertilizer box 105, and a handle is fixedly installed on the cover 106. A rotating rod 301 is rotatably installed inside the fertilizer box 105. Rotating plates 302 are fixedly sleeved at both ends of the outer arc surface of the rotating rod 301. Multiple stirring plates are fixedly installed between the rotating plates 302, evenly distributed around the transverse center of the rotating rod 301. A servo motor 303 is installed on the outside of the fertilizer box 105. The output shaft of the servo motor 303 is fixed to the rotating rod 301 through a coupling.

[0023] In use, rotating the rotating frame 108 causes the rotating frame 108 and the rotating seat 107 to rotate, which in turn causes the rotating frame 108 to drive the multiple feeding pipes 206 installed on it to rotate, which in turn causes the soil turning blocks 207 installed at their lower ends to rotate, thereby adjusting the tilt angle of the feeding pipes 206 and the soil turning blocks 207 installed on the feeding pipes 206, and thus adjusting the soil turning angle of the soil turning blocks 207 and the fertilization angle of the feeding pipes 206; Then, the dual-axis motor 214 is controlled to run, causing its output shaft to drive the adjusting screw 213 connected to it. The adjusting screw 213 drives the drive rod 209, which is threaded to it, to slide against the drive platform 208. This causes the drive platforms 208 on both sides to move towards each other or away from each other. During the movement of the drive rod 209, the drive rod 209 rotates with the connecting rod 211, the connecting rod 211 rotates with the driven rod 210, and the middle part of the connecting rod 211 rotates. At this time, the driven rod 210 moves towards each other or away from each other, which in turn drives the drive rod... The scissor brace structure formed by 209, connecting rod 211, and driven rod 210 drives the sliding table 203 to rise or fall, which in turn causes the sliding table 203 to drive the feeding pipe 206 and the soil-turning block 207 set on the feeding pipe 206 to rise or fall, thereby adjusting the fertilization depth of the feeding pipe 206 and the soil-turning block 207 set on the feeding pipe 206. The tilt angle and fertilization depth of the feeding pipe 206 and the soil-turning block 207 can be easily and flexibly adjusted. This independent and precise control of angle and depth ensures that ideal tillage results can be achieved under different soil types and crop requirements, creating the best seedbed conditions for seed germination and root growth. Then, using external tools, the bolts are tightened to install and fix the fixing seat 101 onto the external traction device. The handle is pulled to remove the cover 106 from the fertilizer box 105. A certain amount of fertilizer is then poured into the fertilizer box 105, and the cover 106 is put back on the fertilizer box 105. Then, the external traction device pulls the fixing seat 101, so that the fixing seat 101 moves and drives the soil turning block 207 to turn the soil. During the movement, the fertilizer in the fertilizer box 105 enters the discharge pipe 206 through the telescopic pipe, and then flows into the turned soil to fertilize the soil. During fertilization, the servo motor 303 is controlled to operate, causing its output shaft to drive the connected rotating rod 301 to rotate. This, in turn, causes the rotating rod 301 to drive the rotating plate 302, which is fixedly sleeved on its outer arc surface, to rotate around the rotating rod 301, causing the fertilizer in the fertilizer bin 105 to be rapidly and evenly agitated. This ensures the fertilizer remains fluid during fertilization, allowing it to quickly and smoothly enter the telescopic pipe. The fertilizer then flows through the telescopic pipe into the discharge pipe 206, and finally into the turned soil during tilling, thus fertilizing the soil. The servo motor 303 drives the rotating rod 301, which in turn drives the rotating plate 302. Continuous and uniform stirring of the fertilizer effectively prevents it from becoming loose or clogged within the container, ensuring good fluidity and allowing it to quickly and smoothly enter the discharge pipe 206 through the telescopic pipe. Ultimately, the fertilizer is evenly applied to the turned-over soil, greatly improving the uniformity of fertilization and avoiding the localized over-fertilization or under-fertilization common in traditional fertilization. This provides balanced nutrition for crop growth, thus ensuring the final fertilization quality and crop yield. By adjusting the turning angle and depth, the fertilization requirements of different crops (deep application for fruit trees, shallow application for lawns) can be met. The overall structure can be easily attached to tractors or other traction devices via the fixing seat 101, achieving separation of power and working implements and improving the utilization rate of the implements. The stirring mechanism inside the fertilizer container 105 ensures the uniformity of fertilization. The tilt angles of the feed pipe 206 and the soil-turning block 207 can be flexibly adjusted through the cooperation of the rotating frame 108 and the rotating seat 107, thereby changing the soil entry angle and cutting curve to adapt to different soil conditions (such as hardness and moisture) and crop needs. The depth adjustment mechanism (a scissor brace structure composed of the drive platform 208, drive rod 209, connecting rod 211, and driven rod 210) can drive the sliding platform 203 to rise and fall as a whole, achieving precise control of the soil turning depth and fertilization depth. This independent and precise control of angle and depth ensures that ideal tillage results can be achieved under different agronomic requirements, creating conditions conducive to seed germination and root growth. This system creates optimal seedbed conditions and simultaneously enables deep or shallow fertilization to meet the nutritional needs of different crops. It integrates the tilling and fertilization processes into one unit, significantly improving operational efficiency. The tilling clod 207 cuts through the soil to form soft trenches as it moves forward, allowing fertilizer to be precisely applied into the trenches via the discharge pipe 206. This simultaneous operation mode reduces the number of times agricultural machinery needs to enter the field, lowers fuel consumption and reduces damage to the soil structure. It is particularly suitable for large-scale field operations and helps to seize the opportune time for farming. Compared to the traditional two-step process of tilling followed by fertilization, this integrated equipment significantly saves time and labor costs.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A fertilizer applicator with a depth adjustment structure, comprising a rotating base (107), characterized in that: The rotating seat (107) is internally equipped with a rotating frame (108), and the rotating frame (108) is equipped with a depth adjustment mechanism for adjusting the depth of fertilization. The depth adjustment mechanism includes a mounting rod (201), a slide rail (202), a sliding table (203), a movable plate (204), a support plate (205), a discharge pipe (206), and a soil-turning block (207). The rotating frame (108) is provided with two mounting rods (201) symmetrically distributed around the vertical center of the rotating frame (108). Each mounting rod (201) is fixedly provided with a slide rail (202). A sliding table (203) is slidably arranged between the slide rails (202). A movable plate (204) is fixedly arranged on the sliding table (203). Multiple support plates (205) are fixedly arranged on the movable plate (204). A discharge pipe (206) is fixedly arranged on each support plate (205). A soil-turning block (207) is fixedly sleeved on the lower side of the outer arc surface of the discharge pipe (206).

2. The fertilization device with a depth adjustment structure as described in claim 1, characterized in that: The depth adjustment mechanism also includes a drive platform (208) fixedly disposed between the mounting rods (201). Two drive rods (209) are slidably disposed inside the drive platform (208) and are symmetrically distributed around the vertical center of the drive platform (208). Two driven rods (210) are slidably disposed inside the sliding platform (203) and are symmetrically distributed around the vertical center of the drive platform (208). A connecting rod (211) is rotatably disposed on each drive rod (209). The end of the connecting rod (211) away from the drive rod (209) is rotatably connected to the adjacent driven rod (210). The middle parts of the connecting rods (211) are rotatably connected to each other.

3. The fertilization device with a depth adjustment structure as described in claim 2, characterized in that: The depth adjustment mechanism also includes a fixed plate (212) symmetrically fixed inside the drive platform (208). Each fixed plate (212) is rotatably provided with an adjusting screw (213), and the adjusting screw (213) is threadedly connected to the adjacent drive rod (209).

4. The fertilization device with a depth adjustment structure as described in claim 3, characterized in that: A dual-axis motor (214) is provided in the center of the drive platform (208). The output shaft of the dual-axis motor (214) is fixed to the adjacent adjusting screw (213) by couplings.

5. The fertilization device with a depth adjustment structure as described in claim 1, characterized in that: The rotating frame (108) has multiple limiting holes (109) on both sides, and the rotating seat (107) has limiting bolts (110) inserted into both sides. The limiting bolts (110) are threaded to the adjacent limiting holes (109).

6. The fertilization device with a depth adjustment structure as described in claim 1, characterized in that: Two connecting rods (103) are fixedly installed on the rotating seat (107) and are symmetrically distributed around the vertical center of the rotating seat (107). A fixing seat (101) is fixedly installed between the top ends of the connecting rods (103), and multiple fixing holes (102) are opened on the fixing seat (101).

7. The fertilization device with a depth adjustment structure as described in claim 6, characterized in that: A support (104) is fixedly installed between the connecting rods (103), and a fertilizer box (105) is fixedly installed on the support (104). The feeding pipe (206) is connected to the fertilizer box (105) through a telescopic pipe.

8. The fertilization device with a depth adjustment structure as described in claim 7, characterized in that: A cover (106) is inserted into the upper side of the fertilizer box (105), and a handle is fixedly installed on the cover (106).

9. The fertilization device with a depth adjustment structure as described in claim 7, characterized in that: The fertilizer box (105) is equipped with a rotating rod (301) inside. Both ends of the outer arc surface of the rotating rod (301) are fixedly fitted with rotating plates (302). Multiple stirring plates are fixedly arranged between the rotating plates (302) with the transverse center of the rotating rod (301) evenly distributed. A servo motor (303) is provided on the outside of the fertilizer box (105). The output shaft of the servo motor (303) is fixed to the rotating rod (301) by a coupling.

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