A solid fertilizer metering applicator
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-11
AI Technical Summary
这样的施肥方式存在长期重复性弯腰动作，对腰部损伤较大，为此出现了施肥器，使用者可保持直立姿态将肥料投入进料斗，肥料经管道引导至植株根部，从而规避弯腰动作，但这样的施肥器无法实现定量施肥，导致单次施肥量波动较大，会引发植株间营养供给失衡，进而影响作物群体生长的一致性
本实用新型所提出的固体肥料定量施肥器，未施肥时，料口与进料口对齐，储肥箱中的固体肥料通过管道、进料口和料口进入肥料转送腔，施肥时，沿施肥管长度方向使施肥控制杆和施肥管相对移动，通过限位凸起与螺旋槽配合使肥料转送筒旋转，实现开口与落料口对齐，肥料转送腔中的肥料由开口和落料口掉入施肥管，被施肥管引导至植物根部实现施肥，在松开后在复位弹簧的作用下恢复原位，肥料转送腔大小固定，实现了定量施肥。
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Figure CN224611364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to solid fertilizer applicators, and more particularly to a solid fertilizer quantitative applicator. Background Technology
[0002] In agricultural production, the traditional application of solid fertilizers mainly relies on manual operation. Specifically, the operator must grab the fertilizer by hand and bend over to spread it around the root zone of the plant. This method of fertilization involves long-term repetitive bending movements, which can cause significant damage to the lower back. To address this, fertilizer applicators were developed. Users can maintain an upright posture while feeding fertilizer into the hopper, and the fertilizer is guided to the plant roots through a pipe, thus avoiding the bending movement. However, such fertilizer applicators cannot achieve quantitative fertilization, resulting in large fluctuations in the amount of fertilizer applied at one time. This can lead to an imbalance in nutrient supply among plants, thereby affecting the uniformity of crop growth. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a solid fertilizer quantitative applicator to solve the technical problems raised in the background art.
[0004] The objective of this utility model is achieved through the following technical solution: A solid fertilizer metering applicator includes a fertilizer tube with an inlet on its wall, the inlet being connected to a fertilizer storage tank via a pipe. One end of the fertilizer tube has an outlet. A baffle is provided on the cross-section of the fertilizer tube between the inlet and outlet, and a discharge port is provided on the baffle. The discharge port and the inlet are located on opposite sides of the axis of the fertilizer tube. A fertilizer transfer cylinder is rotatably mounted inside the fertilizer tube on the side of the baffle facing the inlet. A through hole is coaxially provided on the fertilizer transfer cylinder, and a [missing information - likely a type of material] is provided within the through hole. A fertilizer control rod is provided, with at least one end extending out of the fertilizer tube. A return spring is connected between the fertilizer control rod and the fertilizer tube. A limit protrusion is vertically connected to the fertilizer control rod. A spiral groove is provided on the wall of the through hole, and the limit protrusion is movably disposed in the spiral groove. A fertilizer transfer cylinder is provided with a fertilizer transfer chamber facing the feed inlet and away from the discharge outlet. A material outlet is provided on the wall of the fertilizer transfer chamber, and the material outlet is aligned with the feed inlet. The fertilizer transfer chamber has an opening that can be aligned with the discharge outlet.
[0005] Furthermore, the fertilizer transfer cylinder includes an outer cylinder and an inner cylinder, and two partitions located radially between the outer cylinder and the inner cylinder are provided, the two partitions separating the fertilizer transfer cavity between the outer cylinder and the inner cylinder.
[0006] Furthermore, one end of the fertilizer control rod extends out of the fertilizer application tube's outlet.
[0007] Furthermore, the outlet of the fertilizer pipe is connected to an outer cone, and the fertilizer control rod is connected to an inner cone located inside the outer cone.
[0008] Furthermore, the fertilizer application pipe includes a large-diameter section and a small-diameter section connected together, the fertilizer transfer cylinder is disposed inside the large-diameter section and close to the small-diameter section, and the discharge port is disposed at the end of the large-diameter section.
[0009] Furthermore, the reset spring is a compression spring, the end of the fertilizer tube away from the discharge port is closed, a limiting plate is vertically provided on the fertilizer control rod, and the compression spring is sleeved on the fertilizer control rod with one end connected to the closed end of the fertilizer tube and the other end connected to the limiting plate.
[0010] Furthermore, the reset spring is a tension spring, and an annular plate is connected to the inner side of the end of the fertilizer tube away from the discharge port. One end of the fertilizer control rod extends out of the annular plate and is vertically connected to a limit rod. The tension spring is sleeved on the fertilizer control rod, with one end connected to the limit rod and the other end connected to the annular plate.
[0011] The beneficial effects of this utility model are: The solid fertilizer quantitative applicator proposed in this utility model has the following characteristics: When not fertilizing, the feed inlet and feed outlet are aligned. Solid fertilizer in the fertilizer storage tank enters the fertilizer transfer chamber through the pipe, feed inlet, and feed outlet. During fertilization, the fertilizer control rod and fertilizer tube move relative to each other along the length of the fertilizer tube. The fertilizer transfer cylinder rotates through the cooperation of the limiting protrusion and the spiral groove, aligning the opening with the discharge port. The fertilizer in the fertilizer transfer chamber falls into the fertilizer tube through the opening and discharge port and is guided to the plant roots to achieve fertilization. After being released, it returns to its original position under the action of the return spring. The size of the fertilizer transfer chamber is fixed, thus realizing quantitative fertilization.
[0012] The fertilizer transfer cylinder consists of an outer cylinder, an inner cylinder, and two partitions. It has a simple structure and is easy to process.
[0013] One end of the fertilizer control rod extends out of the fertilizer tube's outlet. The fertilizer control rod outside the outlet contacts the soil. When the fertilizer tube is pressed down, the fertilizer transfer cylinder rotates, making operation convenient.
[0014] Solid fertilizer is applied around the plant roots by setting up an outer cone and an inner cone.
[0015] The fertilizer transfer cylinder is set inside the larger diameter section of the fertilizer application pipe and close to the smaller diameter section. This design allows the fertilizer transfer cylinder to rotate inside the fertilizer application pipe without special design and is easy to manufacture.
[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein: Figure 1 This is a perspective view of the present utility model.
[0018] Figure 2 This is a perspective view of the main sectional section of this utility model.
[0019] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.
[0020] Figure 4 for Figure 1 A three-dimensional view of the fertilizer transfer cylinder.
[0021] Figure 5 for Figure 1 A three-dimensional sectional view of the fertilizer transfer cylinder.
[0022] In the diagram: 1. Fertilizer pipe, 2. Small diameter section, 3. Large diameter section, 4. Outer cone, 5. Feed inlet, 6. Baffle, 7. Fertilizer transfer cylinder, 8. Outer cylinder, 9. Inner cylinder, 10. Baffle, 11. Fertilizer transfer chamber, 12. Feed inlet, 13. Fertilizer control rod, 14. Inner cone, 15. Compression spring, 16. Limiting plate, 17. Spiral groove, 18. Limiting protrusion, 19. Detailed Implementation
[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0024] Example 1 like Figure 1-5 The solid fertilizer metering applicator shown includes a vertical fertilizer tube 1, which comprises a small-diameter section 2 and a large-diameter section 3 connected together. The small-diameter section 2 is located above, and the large-diameter section 3 is located below. The lower end of the large-diameter section 3 is the discharge port, and an outer cone 4 is connected to the lower end of the large-diameter section 3. A feed inlet 5 is located on the upper right side of the large-diameter section 3, and the feed inlet 5 is connected to a fertilizer storage tank via a pipe. A baffle 6 is provided on the cross-section of the fertilizer tube 1 between the feed inlet 5 and the discharge port. A discharge port 7 is located on the left side of the baffle 6, meaning that the discharge port 7 and the feed inlet 5 are located on opposite sides of the axis of the fertilizer tube 1. A fertilizer transfer cylinder 8 is rotatably mounted inside the fertilizer tube 1 above the baffle 6. Figure 3-5As shown, the fertilizer transfer cylinder 8 includes an outer cylinder 9 and an inner cylinder 10. Two partitions 11 are provided between the outer cylinder 9 and the inner cylinder 10 in their radial direction. The two partitions 11 separate the fertilizer transfer chamber 12 between the outer cylinder 9 and the inner cylinder 10. The fertilizer transfer chamber 12 is located on the right side. A material inlet 13 is provided on the wall of the fertilizer transfer chamber 12. The material inlet 13 is aligned with the feed inlet 5. The bottom opening of the fertilizer transfer chamber 12 can be aligned with the discharge port 7. The top of the fertilizer transfer cylinder 8 is limited by a small diameter section 2. A fertilizer control rod 14 is installed in the through hole inside the inner cylinder 10. The lower end of the fertilizer control rod 14 is connected to an inner cone 15 located inside the outer cone 4. The lower end of the inner cone 15 is exposed outside the outer cone 4. A return spring is connected between the fertilizer control rod 14 and the fertilizer tube 1. There are many ways to connect the return spring between the fertilizer control rod 14 and the fertilizer tube 1. For example, the return spring is a compression spring 16, the upper end of the small diameter segment 2 is closed, and a limiting plate 17 is vertically provided at the upper end of the fertilizer control rod 14. The compression spring 16 is sleeved on the fertilizer control rod 14. One end of the compression spring 16 is connected to the closed end of the fertilizer tube 1, and the other end is connected to the limiting plate 17. Another example is that the return spring is a tension spring. An annular plate is connected to the inner side of the upper end of the fertilizer tube 1. The upper end of the fertilizer control rod 14 extends out of the annular plate and is vertically connected to a limiting rod. The tension spring is sleeved on the fertilizer control rod 14, and one end of it is connected to the limiting rod and the other end is connected to the annular plate. The wall of the through hole is provided with a spiral groove 18, with the lower end of the spiral groove 18 located on the left and the upper end located on the right. A limiting protrusion 19 is vertically connected to the fertilizer control rod 14, and the limiting protrusion 19 is movably disposed in the spiral groove 18.
[0025] The solid fertilizer metering applicator proposed in this utility model has the following characteristics: When not fertilizing, the feed inlet 13 is aligned with the feed port 5. Solid fertilizer from the fertilizer storage box on the back enters the fertilizer transfer chamber 12 through the pipe, feed port 5, and feed inlet 13. During fertilization, the inner cone 15 covers the plant and contacts the soil, pressing down the fertilizer tube 1. The fertilizer transfer cylinder 8 rotates through the cooperation of the limiting protrusion 19 and the spiral groove 18, aligning the opening with the discharge port 7. The fertilizer in the fertilizer transfer chamber 12 falls into the fertilizer tube 1 through the opening and discharge port 7, and is guided by the fertilizer tube 1, outer cone 4, and inner cone 15 to the circumference of the plant roots for fertilization. After being released, it returns to its original position under the action of the return spring, and the size of the fertilizer transfer chamber 12 is fixed, realizing metered fertilization. The fertilizer transfer cylinder 8 is composed of an outer cylinder 9, an inner cylinder 10, and two partitions 11, with a simple structure and easy processing. The fertilizer transfer cylinder 8 is set inside the larger diameter section 3 of the fertilizer application pipe 1 and close to the smaller diameter section 2. The fertilizer transfer cylinder 8 can be rotated inside the fertilizer application pipe 1 without special design and is easy to manufacture.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A solid fertilizer metering applicator, characterized in that: It includes a fertilizer pipe (1), with an inlet (5) on its wall. The inlet (5) is connected to a fertilizer storage tank via a pipe. One end of the fertilizer pipe (1) has an outlet. A baffle (6) is provided on the cross-section of the fertilizer pipe (1) between the inlet (5) and the outlet. A discharge port (7) is provided on the baffle (6). The discharge port (7) and the inlet (5) are located on opposite sides of the axis of the fertilizer pipe (1). A fertilizer transfer cylinder (8) is rotatably provided inside the fertilizer pipe (1) on the side of the baffle (6) facing the inlet (5). A through hole is coaxially provided on the fertilizer transfer cylinder (8). A fertilizer control rod (14) is provided inside the through hole. At least one end of the control rod (14) extends out of the fertilizer tube (1). A return spring is connected between the fertilizer control rod (14) and the fertilizer tube (1). A limit protrusion (19) is vertically connected to the fertilizer control rod (14). A spiral groove (18) is provided on the wall of the through hole. The limit protrusion (19) is movably disposed in the spiral groove (18). A fertilizer transfer cylinder (8) is provided with a fertilizer transfer chamber (12) facing the feed inlet (5) and away from the discharge port (7). A material outlet (13) is provided on the wall of the fertilizer transfer chamber (12). The material outlet (13) is aligned with the feed inlet (5). The fertilizer transfer chamber (12) is provided with an opening that can be aligned with the discharge port (7).
2. The solid fertilizer metering applicator according to claim 1, characterized in that: The fertilizer transfer cylinder (8) includes an outer cylinder (9) and an inner cylinder (10). Two partitions (11) are provided between the outer cylinder (9) and the inner cylinder (10) in their radial direction. The two partitions (11) separate the fertilizer transfer chamber (12) between the outer cylinder (9) and the inner cylinder (10).
3. The solid fertilizer metering applicator according to claim 1, characterized in that: One end of the fertilizer control rod (14) extends out of the outlet of the fertilizer pipe (1).
4. The solid fertilizer metering applicator according to claim 1, characterized in that: The outlet of the fertilizer pipe (1) is connected to an outer cone (4), and the fertilizer control rod (14) is connected to an inner cone (15) located inside the outer cone (4).
5. The solid fertilizer metering applicator according to any one of claims 1-4, characterized in that: The fertilizer application pipe (1) includes a large diameter section (3) and a small diameter section (2) connected to each other. The fertilizer transfer cylinder (8) is located inside the large diameter section (3) and close to the small diameter section (2). The discharge port is located at the end of the large diameter section (3).
6. The solid fertilizer metering applicator according to claim 5, characterized in that: The reset spring is a compression spring (16). The end of the fertilizer tube (1) away from the discharge port is closed. A limiting plate (17) is vertically provided on the fertilizer control rod (14). The compression spring (16) is sleeved on the fertilizer control rod (14) and one end of it is connected to the closed end of the fertilizer tube (1) and the other end is connected to the limiting plate (17).
7. The solid fertilizer metering applicator according to claim 5, characterized in that: The reset spring is a tension spring. The inner side of the end of the fertilizer tube (1) away from the outlet is connected to an annular plate. One end of the fertilizer control rod (14) extends out of the annular plate and is vertically connected to a limit rod. The tension spring is sleeved on the fertilizer control rod (14) and one end is connected to the limit rod and the other end is connected to the annular plate.