A device for planting and topdressing
By designing a planting and topdressing device, which utilizes the combination of hollow tubes and conical heads, deep fertilization can be achieved, solving the problems of fertilizer loss and high labor intensity, and improving nutrient supply and operational efficiency during the corn jointing stage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽铭芸农业科技有限公司
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, manual application of fertilizer is prone to volatilization and loss, making it difficult to achieve deep fertilization, and is labor-intensive, failing to meet the nutrient requirements of corn during the jointing stage.
Design a planting fertilization device, including a hollow tube, a fertilizer shovel, a conical head and a foot pedal. The conical head and rubber sleeve work together to achieve deep fertilization. The fertilizer outlet is automatically closed by a spring to reduce loss and reduce labor intensity.
It improved fertilizer utilization, met the nutrient requirements of corn during the jointing stage, reduced labor intensity, improved work efficiency, and reduced fertilizer waste.
Smart Images

Figure CN224319910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corn planting equipment technology, and in particular to a planting topdressing device. Background Technology
[0002] Corn grows slowly during its seedling stage and requires relatively few nutrients. However, once it enters the jointing stage, the stems elongate rapidly, significantly increasing the demand for nitrogen. The tasseling and flowering / pollination stages are periods of simultaneous vegetative and reproductive growth for corn, with peak nutrient requirements, especially for macronutrients such as nitrogen, phosphorus, and potassium. Relying solely on basal fertilizer may not meet the nutrient needs during these critical growth stages, leading to poor plant growth, small ears with few kernels, and reduced yield. Therefore, topdressing is necessary to promote corn growth.
[0003] In existing technologies, when fertilizer is applied manually, nutrients are easily lost in large quantities due to volatilization and rain erosion, resulting in insufficient fertilizer utilization and the inability to achieve deep fertilization, making it difficult to meet the concentrated nutrient requirements of corn during the jointing stage. When using ordinary tools for trenching and topdressing, the lack of labor-saving structures means that when encountering hard soil or requiring deep fertilization, one needs to bend over to insert the fertilizer applicator to a sufficient depth, which not only increases labor intensity but also easily leads to fertilizer being exposed on the surface due to shallow insertion, exacerbating nutrient loss. Therefore, we propose a planting topdressing device to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a planting fertilization device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A planting fertilization device includes a hollow tube, a fertilizer shovel fixedly connected to the bottom of the hollow tube, a conical head slidably connected to the bottom of the hollow tube, a push rod fixedly connected to the top of the conical head, an end tube threadedly fitted to the top of the hollow tube, a spring fitted on the outer wall of the push rod, a circular washer fixedly connected to the top of the push rod, a connecting rod fixedly connected to the top of the circular washer, a sliding component on the outer wall of the connecting rod, a handle fixedly connected to the top of the end tube, and two anti-slip sleeves fixedly fitted on the outer wall of the handle.
[0007] Preferably, the sliding assembly includes a pressing block, the top of the connecting rod is fixedly connected to the bottom of the pressing block, four key blocks are evenly fixedly connected to the outer wall of the connecting rod, a keyway is provided at the bottom of the end tube, and the inner wall of the keyway is slidably connected to the outer wall of the key block. The sliding assembly is used to assist the connecting rod in moving up and down, thus preventing it from rotating.
[0008] Preferably, two foot pedals are fixedly connected to the bottom outer wall of the hollow tube, and a rubber sleeve is fixedly fitted on the outer wall of the conical head, so that the foot pedals can be easily stepped on.
[0009] Preferably, a fertilizer inlet pipe is fixedly connected to the outer wall of the hollow tube, and a backpack fertilizer bucket is fixedly connected to one end of the fertilizer inlet pipe. The backpack fertilizer bucket contains fertilizer. Since the backpack fertilizer bucket is carried on the back, and the height of the hollow tube is lower than the backpack fertilizer bucket, the fertilizer enters the hollow tube from the fertilizer inlet pipe by its own gravity.
[0010] Preferably, the hollow tube has a through hole at the top, and the inner wall of the through hole is slidably connected to the outer wall of the push rod.
[0011] Preferably, the bottom of the spring contacts the top of the hollow tube, and the top of the spring contacts the bottom of the circular washer, so that the circular washer is driven to return to its original position upward by the spring.
[0012] Preferably, the outer wall of the handle has a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the connecting rod.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] This solution utilizes a fertilizer shovel to create holes deep in the soil, and a conical head to release fertilizer, achieving deep fertilization. This reduces nutrient loss due to volatilization and rainwater erosion, which is common in traditional methods, significantly improving fertilizer utilization and meeting the concentrated nutrient needs of corn during its jointing stage. The foot pedal makes deep fertilization in hard soil or deep soil easier, avoiding the need to bend over and exert force as with traditional tools, reducing labor intensity and improving work efficiency. The conical head, combined with a rubber sleeve and a spring for automatic reset, reliably seals the fertilizer outlet, reducing leakage and preventing waste. Attached Figure Description
[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a planting fertilization device proposed in this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of a planting fertilization device proposed in this utility model;
[0018] Figure 3 This utility model proposes a planting topdressing device. Figure 2 A magnified structural diagram of part A in the diagram;
[0019] Figure 4 This is a partial three-dimensional structural diagram of a planting and fertilization device proposed in this utility model.
[0020] In the diagram: 1. Hollow tube; 2. Foot pedal; 3. Fertilizer shovel; 4. Conical head; 5. Rubber sleeve; 6. Push rod; 7. End tube; 8. Spring; 9. Circular washer; 10. Connecting rod; 11. Key block; 12. Pressing block; 13. Handle; 14. Anti-slip sleeve; 15. Keyway; 16. Fertilizer inlet pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Depend on Figures 1-4 As shown, a planting fertilization device is disclosed, including a hollow tube 1. Two foot pedals 2 are fixedly connected to the bottom outer wall of the hollow tube 1. The foot pedals 2 allow the user to apply force by stepping on the soil when the fertilizer shovel 3 needs to be inserted into the soil or when encountering hard soil, which can more easily increase the soil depth of the fertilizer shovel 3 and avoid the situation where it is difficult to operate by relying solely on arm strength, thus reducing labor intensity.
[0023] A fertilizer shovel 3 is fixedly connected to the bottom of the hollow tube 1. The fertilizer shovel 3 is fixed to the bottom of the hollow tube 1. The bottom is sharp and easy to insert into the soil near the corn roots. It can quickly break the soil to form a fertilizer trench or hole, providing a channel for fertilizer to enter the soil. Its sturdy structure can adapt to different soil hardness and ensure the accuracy of the fertilizer application position.
[0024] A conical head 4 is slidably connected to the bottom of the hollow tube 1. A rubber sleeve 5 is fixedly fitted on the outer wall of the conical head 4. When it moves downward under the action of the push rod 6, the conical head 4 can smoothly expose the bottom of the hollow tube 1, allowing fertilizer to flow out from the gap and into the hole. When it returns to its original position, the conical surface and the rubber sleeve 5 can tightly squeeze the bottom of the hollow tube 1, effectively preventing material leakage. A push rod 6 is fixedly connected to the top of the conical head 4. A through hole is opened at the top of the hollow tube 1. The inner wall of the through hole is slidably connected to the outer wall of the push rod 6. An end tube 7 is threaded onto the top of the hollow tube 1. The threaded connection facilitates installation and disassembly, providing convenience for the maintenance and replacement of internal components.
[0025] A spring 8 is fitted on the outer wall of the push rod 6. A circular pad 9 is fixedly connected to the top of the push rod 6. A connecting rod 10 is fixedly connected to the top of the circular pad 9. A handle 13 is fixedly connected to the top of the end tube 7. When the palm releases the pressing block 12, the elastic force of the spring 8 can drive the circular pad 9, the push rod 6 and the conical head 4 to return to their original position, thereby realizing the function of automatically closing the fertilizer outlet without manual reset.
[0026] The outer wall of the handle 13 has a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the connecting rod 10. Two anti-slip sleeves 14 are fixedly fitted on the outer wall of the handle 13. A fertilizer inlet pipe 16 is fixedly connected to the outer wall of the hollow tube 1, and a backpack fertilizer bucket is fixedly connected to one end of the fertilizer inlet pipe 16.
[0027] The outer wall of the connecting rod 10 is provided with a sliding assembly, which includes a pressing block 12. The top of the connecting rod 10 is fixedly connected to the bottom of the pressing block 12. Four key blocks 11 are evenly fixedly connected to the outer wall of the connecting rod 10. A keyway 15 is provided at the bottom of the end tube 7. The key blocks 11 are fixed to the outer wall of the connecting rod 10 and are slidably connected to the keyway 15. This can restrict the rotation of the connecting rod 10 and ensure that it can only move up and down along a straight line, thus preventing the push rod 6 and the conical head 4 from shifting or rotating during the movement. The inner wall of the keyway 15 is slidably connected to the outer wall of the key block 11.
[0028] Working principle: When applying fertilizer to corn during the jointing stage, the user carries the backpack fertilizer container on their back. The fertilizer enters through the fertilizer inlet pipe 16 (corrugated pipe) into the hollow pipe 1, accumulating above the conical head 4. The user moves the entire unit by holding the handle 13. When applying fertilizer deep into the soil, the fertilizer shovel 3 is inserted into the soil near the corn roots. If deeper penetration is needed or if hard soil is encountered, the user applies downward force by stepping on one of the foot pedals 2, which allows the fertilizer shovel 3 to penetrate further. After penetration, the user tilts the handle 13 backward to create a hole. The user then applies downward force to the top of the pressing block 12. The pressing block 12, under pressure, moves the connecting rod 10 downward, which in turn moves multiple... The key block 11 moves linearly along the keyway 15, causing the circular pad 9 to move downwards. The downward movement of the circular pad 9 compresses the spring 8, which in turn causes the push rod 6 to move downwards. The downward movement of the push rod 6 causes the conical head 4 to move downwards, exposing the bottom of the hollow tube 1. Fertilizer flows out from the gap and into the excavated hole. Releasing the palm of the pressing block 12 causes the spring 8 to move the circular pad 9 upwards to reset, thereby causing the conical head 4 to move upwards again to press the bottom of the hollow tube 1. Due to the conical surface of the conical head 4 and the elasticity of the rubber sleeve 5, leakage is prevented. After fertilization, one can step on the excavated soil when passing by to compact the soil in the hole.
[0029] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A planting fertilization device, comprising a hollow tube (1), characterized in that, The bottom of the hollow tube (1) is fixedly connected to a fertilizer shovel (3), the bottom of the hollow tube (1) is slidably connected to a conical head (4), the top of the conical head (4) is fixedly connected to a push rod (6), the top of the hollow tube (1) is threaded with an end tube (7), the outer wall of the push rod (6) is fitted with a spring (8), the top of the push rod (6) is fixedly connected to a circular washer (9), the top of the circular washer (9) is fixedly connected to a connecting rod (10), the outer wall of the connecting rod (10) is provided with a sliding component, the top of the end tube (7) is fixedly connected to a handle (13), and the outer wall of the handle (13) is fixedly fitted with two anti-slip sleeves (14).
2. The planting fertilization device according to claim 1, characterized in that, The sliding assembly includes a pressing block (12), the top of the connecting rod (10) is fixedly connected to the bottom of the pressing block (12), four key blocks (11) are evenly fixedly connected to the outer wall of the connecting rod (10), and a keyway (15) is provided at the bottom of the end tube (7), and the inner wall of the keyway (15) is slidably connected to the outer wall of the key block (11).
3. The planting fertilization device according to claim 1, characterized in that, Two foot pedals (2) are fixedly connected to the bottom outer wall of the hollow tube (1), and a rubber sleeve (5) is fixedly fitted on the outer wall of the conical head (4).
4. The planting fertilization device according to claim 1, characterized in that, The outer wall of the hollow tube (1) is fixedly connected to a fertilizer inlet pipe (16), and one end of the fertilizer inlet pipe (16) is fixedly connected to a backpack fertilizer bucket.
5. A planting fertilization device according to claim 1, characterized in that, The hollow tube (1) has a through hole at the top, and the inner wall of the through hole is slidably connected to the outer wall of the push rod (6).
6. A planting fertilization device according to claim 1, characterized in that, The bottom of the spring (8) is in contact with the top of the hollow tube (1), and the top of the spring (8) is in contact with the bottom of the circular washer (9).
7. A planting fertilization device according to claim 1, characterized in that, The outer wall of the handle (13) is provided with a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the connecting rod (10).