Slow-release fertilizer seeder
By designing a slow-release fertilizer seeder with a deep-loosening shovel and fertilizer distribution components, the problem of fertilizer application being hindered by the plow pan has been solved, achieving uniform fertilizer distribution and seed sowing, thus improving crop growth and yield.
Patent Information
- Application Number
- CN202520130803.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing slow-release fertilizer planting machinery has difficulty penetrating the plow pan, resulting in fertilizer not being evenly applied to the deeper soil layers, affecting utilization, and may exacerbate soil surface compaction, restricting crop root penetration and growth.
A slow-release fertilizer seeder was designed, comprising a deep loosening shovel and a fertilizer distribution component. The deep loosening shovel can penetrate the plow pan, and the fertilizer distribution component ensures that the fertilizer is evenly spread in the deep soil layer. Combined with the seeding shovel, it achieves even seed sowing. The synchronous belt drive component enables the synchronous and quantitative application of fertilizer and seeds.
It improves fertilizer utilization, promotes balanced distribution of soil nutrients, enhances crop growth and yield, prevents root burn, and ensures normal seed development.
Smart Images

Figure CN223786582U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a slow-release fertilizer seeder. Background Technology
[0002] In modern agricultural production, rotary tillage, as an efficient soil cultivation method, is widely used in various types of farmland. The depth of rotary tillage is generally controlled between 10-12 cm. This depth of tillage can effectively break up surface soil compaction, improve soil looseness, and facilitate crop sowing and growth. However, with years of shallow rotary tillage and no-till operations, a hard plow pan with a thickness of 8-12 cm has gradually formed below the tillage layer in farmland. The appearance of this plow pan has a significant impact on the physical and chemical properties of the soil. It reduces soil permeability, decreases the oxygen content in the soil, and affects the soil's water retention capacity, making the soil more prone to water loss in the dry season and more prone to waterlogging in the rainy season. This is not conducive to the normal growth and development of crops. In particular, the hard texture of the plow pan hinders the downward penetration of crop roots, limiting the absorption of nutrients from deeper soil layers, thereby affecting crop yield and quality.
[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:
[0004] Due to the hard texture of the plow pan, existing slow-release fertilizer seeding machinery often struggles to penetrate this layer during operation. This results in fertilizer not being evenly applied to the deeper soil layers, but rather remaining mostly on the surface of the tillage layer. This not only affects fertilizer utilization but may also exacerbate soil compaction and further deteriorate the soil's physical and chemical properties. In addition, because the plow pan restricts root penetration, even if seeds successfully germinate, their roots may not develop well due to their inability to penetrate the soil, thus affecting the overall growth of crops.
[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, this utility model proposes a slow-release fertilizer seeder, which solves the problems mentioned in the background technology.
[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:
[0008] A slow-release fertilizer seeder includes a frame that can be mounted on the tail of a traction mechanism, a first upright and a second upright arranged vertically and fixedly mounted below the frame, and a fertilizer box and a seed box fixedly installed above the frame and respectively behind the first upright and the second upright. A deep-loosening shovel is fixedly installed at the bottom of the first upright, and a fertilizer distribution component is mounted on the back of the deep-loosening shovel. A seeding shovel is fixedly installed at the bottom of the second upright. The output ends of the fertilizer box and the seed box are respectively connected to the fertilizer distribution component and the rear of the seeding shovel via guide pipes.
[0009] The fertilizer distribution assembly includes a mesh box hinged to the back of the deep loosening shovel along an inclined direction and a material trough located on the top of the mesh box and integrally connected thereto. Slider blocks are provided on both outer side walls of the material trough. Support plates extending horizontally backward are welded to both sides of the first upright. The rear of both support plates is provided with a fan-shaped limiting groove for the slider to pass through and accommodate. Both sliders are connected to the two support plates respectively by return springs.
[0010] Preferably, the device further includes a baffle plate vertically welded to the top of the back of the mesh box, the baffle plate being distributed along the width direction of the mesh box. When fertilizer is evenly spread from the trough through the mesh box onto the soil, the baffle plate effectively prevents fertilizer from splashing due to wind or mechanical vibration, ensuring that the fertilizer accurately falls into the deeper soil layers, reducing fertilizer waste and improving fertilizer utilization. Furthermore, the baffle plate also guides the flow of fertilizer, guiding it to be more evenly distributed in the deeper soil layers during the process of fertilizer falling from the trough into the mesh box and being spread onto the soil, preventing fertilizer accumulation or loss in certain areas, thereby further improving fertilizer uniformity and utilization.
[0011] Preferably, the deep tillage shovel includes a first shovel body and a first shovel head mounted on the front bottom of the first shovel body, and the interior of the first shovel body has a first slope. The separate design of the first shovel head and the first shovel body facilitates the maintenance and replacement of subsequent components. Simultaneously, the design of the first slope forms a channel for fertilizer flow, helping the fertilizer to smoothly fall into the mesh box and ultimately be applied to the soil.
[0012] Preferably, the sowing shovel includes a second shovel body and a second shovel head mounted on the front bottom of the second shovel body. Both sides of the back of the second shovel body are provided with rearwardly inwardly extending baffles, and the interior of the second shovel body has a second slope. The separate design of the second shovel head and the second shovel body facilitates the maintenance and replacement of subsequent components. Simultaneously, the baffles on the back of the second shovel body effectively prevent seeds from splashing during sowing, ensuring uniform seed distribution. Furthermore, the second slope inside the sowing shovel helps the seeds fall smoothly into the soil.
[0013] Preferably, both the fertilizer box and the seed box are equipped with rotary dispensing valves at their output ends, and the two rotary dispensing valves are connected by a synchronous belt drive assembly. The two rotary dispensing valves, in conjunction with the synchronous belt drive assembly, enable the synchronous and quantitative application of fertilizer and seeds, further improving the accuracy and efficiency of sowing and fertilization.
[0014] Preferably, it also includes auxiliary support wheels that are vertically distributed and fixedly mounted at the rear of the frame. These auxiliary support wheels at the rear of the frame provide additional stability to the seeder, improving overall operating efficiency.
[0015] The beneficial effects of this utility model are:
[0016] The technical solution of this utility model, by installing a deep tillage shovel at the front of the machine frame, can effectively penetrate the plow pan, breaking the limitations of the plow pan on soil permeability and water retention capacity. This creates favorable conditions for crop roots to penetrate deeper and for nutrients to be absorbed into deeper layers. At the same time, in conjunction with the fertilizer distribution component mounted on the back of the deep tillage shovel, fertilizer can be evenly applied to the deep soil layers, which not only improves fertilizer utilization but also promotes the balanced distribution of soil nutrients, providing sufficient nutritional support for the healthy growth of crops. In addition, with the help of the sowing shovel installed at the rear of the machine frame, seeds can be evenly applied to the soil tillage layer, and fertilizer accumulation on the soil surface is avoided, effectively preventing root burn caused by excessive fertilizer concentration. This is conducive to seed germination and normal root development, thereby improving the overall growth and yield of crops. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the installation structure of the fertilizer distribution component of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the fertilizer distribution component of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the deep loosening shovel of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the sowing shovel of this utility model;
[0022] Figure 6 This is a schematic diagram of the installation structure of the synchronous belt drive assembly of this utility model;
[0023] Explanation of reference numerals in the attached figures:
[0024] 100. Rack;
[0025] 110. Auxiliary support wheels;
[0026] 200. First pole erected;
[0027] 210. Subsoiling shovel; 220. Fertilizer distribution unit;
[0028] 2110, First shovel body; 2120, First shovel head; 2130, First slope;
[0029] 2210, Mesh box; 2220, Feed trough; 2230, Slider; 2240, Support plate; 2250, Limiting groove; 2260, Return spring; 2270, Baffle;
[0030] 300, Second pole;
[0031] 310. Seeding shovel;
[0032] 3110, Second shovel body; 3120, Second shovel head; 3130, Material stop plate; 3140, Second slope surface;
[0033] 400. Fertilizer box;
[0034] 500, Seed Box;
[0035] 600. Synchronous belt drive assembly;
[0036] 700. Feed tube. Detailed Implementation
[0037] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] Please see Figure 1-6This utility model provides a technical solution: a slow-release fertilizer seeder, including a frame 100 that can be assembled to the tail of a traction machine, and a first upright 200 and a second upright 300 arranged vertically and fixedly mounted below the frame 100 in a front-to-back distribution, as well as a fertilizer box 400 and a seed box 500 fixedly installed above the frame 100 and respectively located behind the first upright 200 and the second upright 300. A deep loosening shovel 210 is fixedly installed at the bottom of the first upright 200, and a fertilizer distribution component 220 is assembled on the back of the deep loosening shovel 210. A sowing shovel 310 is fixedly installed at the bottom of the second upright 300. The output ends of the fertilizer box 400 and the seed box 500 are both open to the air. The feed pipe 700 is connected to the rear of the fertilizer distribution component 220 and the sowing shovel 310 respectively. The fertilizer distribution component 220 includes a mesh box 2210 that is hinged to the rear of the deep loosening shovel 210 along the inclined direction and a material trough 2220 that is located on the top of the mesh box 2210 and integrally connected to it. The material trough 2220 is provided with sliders 2230 on both outer side walls. The first upright 200 is welded with horizontally extending support plates 2240 on both sides. The rear of the two support plates 2240 is provided with a fan-shaped limiting groove 2250 for the sliders 2230 to pass through and accommodate. The two sliders 2230 are connected to the two support plates 2240 respectively through a return spring 2260.
[0039] Based on the above structural configuration, the slow-release fertilizer seeder consists of a frame 100, a first upright 200, a second upright 300, a subsoil shovel 210, a fertilizer distribution assembly 220, a seeding shovel 310, a fertilizer box 400, a seed box 500, and two feed pipes 700. The seeder is fixedly connected to the rear of a traction machine (such as a tractor) via the frame 100, enabling overall movement and operation. The frame 100 serves as the basic support structure for the entire seeder, providing stable support for the fertilizer box 400, seed box 500, first upright 200, and second upright 300. The subsoil shovel 210 and the seeding shovel 310 are respectively connected via the first upright... The second upright 200 and the second upright 300 are positioned front and rear below the frame 100. Specifically, during operation, the traction mechanism drives the seeder forward, and the deep tillage shovel 210 can easily penetrate the plow pan, breaking up the hard soil structure and restoring soil permeability. At the same time, it creates conditions for deep fertilizer application. The fertilizer distribution component 220 on the back of the deep tillage shovel 210 works accordingly. The feed trough 2220 receives fertilizer from the fertilizer box 400 and slides within the limiting groove 2250 of the support plate 2240 via the slider 2230. With the elastic action of the return spring 2260, the mesh box 2210 distributed along the inclined direction vibrates, allowing the fertilizer to pass through. The mesh of the mesh box 2210 evenly spreads fertilizer deep into the soil, achieving uniform and deep application of fertilizer, improving fertilizer utilization, and promoting balanced distribution of soil nutrients. The sowing shovel 310, supported by the second upright 300 at the rear of the frame 100, follows the deep loosening shovel 210 for sowing. Seeds from the seed box 500 fall through the guide pipe 700 into the rear of the sowing shovel 310, sowing the seeds into the tillage layer. This slow-release fertilizer seeder, by installing the deep loosening shovel 210 at the front of the frame 100, can effectively penetrate the plow pan, breaking the limitations of the plow pan on soil permeability and water retention capacity, thus facilitating deeper root penetration and nutrient delivery. Layered absorption creates favorable conditions. At the same time, the fertilizer distribution component 220, which is mounted on the back of the deep tillage shovel 210, ensures that fertilizer is evenly applied to the deep soil layer. This not only improves fertilizer utilization but also promotes the balanced distribution of soil nutrients, providing sufficient nutritional support for the healthy growth of crops. In addition, the seeding shovel 310 mounted at the rear of the frame 100 not only allows seeds to be evenly applied to the soil tillage layer but also avoids fertilizer accumulation on the soil surface. This effectively prevents root burn caused by excessive fertilizer concentration, which is conducive to seed germination and normal root development, thereby improving the overall growth and yield of crops.
[0040] Furthermore, it also includes a baffle 2270 that is vertically welded to the top of the back of the mesh box 2210, and the baffle 2270 is distributed along the width direction of the mesh box 2210.
[0041] Furthermore, the deep loosening shovel 210 includes a first shovel body 2110 and a first shovel head 2120 assembled at the bottom front side of the first shovel body 2110, and the interior of the first shovel body 2110 is provided with a first slope 2130.
[0042] Furthermore, the sowing shovel 310 includes a second shovel body 3110 and a second shovel head 3120 assembled at the bottom front side of the second shovel body 3110. Both sides of the back of the second shovel body 3110 are provided with a backstop plate 3130 extending inward and backward. The interior of the second shovel body 3110 is provided with a second slope 3140.
[0043] Furthermore, both the fertilizer box 400 and the seed box 500 are equipped with rotary feeding valves at their output ends, and the two rotary feeding valves are connected by a synchronous belt drive assembly 600.
[0044] Furthermore, it also includes auxiliary support wheels 110 that are vertically distributed and fixedly mounted at the rear of the frame 100.
[0045] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A slow-release fertilizer seeder, characterized in that: The system includes a frame (100) that can be mounted on the tail of a traction machine, and a first upright (200) and a second upright (300) that are both arranged vertically and fixedly mounted below the frame (100) in a front-to-back distribution. It also includes a fertilizer box (400) and a seed box (500) that are both fixedly installed on the top of the frame (100) and respectively located behind the first upright (200) and the second upright (300). A deep loosening shovel (210) is fixedly installed at the bottom of the first upright (200), and a fertilizer distribution assembly (220) is mounted on the back of the deep loosening shovel (210). A sowing shovel (310) is fixedly installed at the bottom of the second upright (300). The output ends of the fertilizer box (400) and the seed box (500) are respectively connected to the rear of the fertilizer distribution assembly (220) and the sowing shovel (310) through a guide pipe (700). The fertilizer distribution assembly (220) includes a mesh box (2210) hinged to the rear of the deep loosening shovel (210) along an inclined direction and a material trough (2220) provided on the top of the mesh box (2210) and integrally connected thereto. The material trough (2220) is provided with sliders (2230) on both outer side walls. The first upright (200) is welded with horizontally extending support plates (2240) on both sides. The rear of the two support plates (2240) is provided with a limiting groove (2250) with a fan-shaped structure for the sliders (2230) to pass through and accommodate. The two sliders (2230) are respectively connected to the two support plates (2240) by a return spring (2260).
2. The slow-release fertilizer seeder according to claim 1, characterized in that: It also includes a baffle (2270) vertically welded to the top of the back of the mesh box (2210), the baffle (2270) being distributed along the width direction of the mesh box (2210).
3. The slow-release fertilizer seeder according to claim 1, characterized in that: The deep loosening shovel (210) includes a first shovel body (2110) and a first shovel head (2120) assembled at the bottom front side of the first shovel body (2110). The first shovel body (2110) has a first slope (2130) inside.
4. The slow-release fertilizer seeder according to claim 1, characterized in that: The sowing shovel (310) includes a second shovel body (3110) and a second shovel head (3120) assembled at the bottom front side of the second shovel body (3110). Both sides of the back of the second shovel body (3110) are provided with a baffle plate (3130) extending inward and backward. The interior of the second shovel body (3110) is provided with a second slope (3140).
5. A slow-release fertilizer seeder according to claim 1, characterized in that: Both the fertilizer box (400) and the seed box (500) are equipped with rotary feeding valves at their output ends, and the two rotary feeding valves are connected by a synchronous belt drive assembly (600).
6. A slow-release fertilizer seeder according to claim 1, characterized in that: It also includes auxiliary support wheels (110) that are vertically distributed and fixedly mounted at the rear of the frame (100).