Quantitative annular fertilizer applicator for flue-cured tobacco planting
By designing a simple quantitative ring fertilizer applicator, which uses a fertilizer control rod and valve head to control fertilizer flow, the problem of complex structure and inconvenient operation of existing ring fertilizer applicators is solved. This achieves uniform fertilizer application, reduces costs, and promotes the healthy growth of tobacco seedlings.
Patent Information
- Application Number
- CN202520038990.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing ring-shaped fertilizer applicators are complex in structure, inconvenient to operate, and expensive, resulting in uneven fertilization and easy burning of seedlings.
A quantitative ring fertilizer applicator was designed, comprising a fertilizer discharge pipe, an outer cone, an inner cone, and a fertilizer control rod. The fertilizer flow is controlled by the first and second valve heads on the fertilizer control rod, ensuring uniform fertilization. The applicator has a simple structure and is easy to operate.
This method achieves uniform fertilizer application, reduces operational complexity and costs, avoids fertilizer accumulation, and promotes healthy growth of tobacco seedlings and improves the quality of flue-cured tobacco.
Smart Images
Figure CN223639710U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of flue-cured tobacco planting technology, especially to a quantitative annular fertilizer applicator for flue-cured tobacco planting. BACKGROUND
[0002] After the tobacco seedlings are transplanted to the field, they need to be fertilized. The traditional fertilization method is to apply fertilizer on one side of the tobacco seedlings, which is prone to cause the phenomenon of seedling burning due to direct contact between the fertilizer and the root system of the tobacco seedlings. In order to improve the shortcomings of the traditional fertilization method, an annular fertilizer applicator has appeared, which can uniformly apply fertilizer around the tobacco seedlings, thereby improving the uniformity of nutrient absorption of the root system of the tobacco seedlings and promoting the healthy growth of the flue-cured tobacco and improving the quality and yield of the flue-cured tobacco. However, the existing annular fertilizer applicator has a complex structure, is inconvenient to operate, and has a high cost, such as the patent with the patent name of a rotary annular fertilizer applicator and the publication number of 202321935808X. SUMMARY
[0003] Therefore, the utility model aims to provide a quantitative annular fertilizer applicator for flue-cured tobacco planting to at least solve the technical problems of the existing annular fertilizer applicator, such as a complex structure, inconvenience to operate, and a high cost.
[0004] The utility model aims to realize the following technical scheme:
[0005] A quantitative annular fertilizer applicator for flue-cured tobacco planting comprises a fertilizer discharge chute, one end of the fertilizer discharge chute is connected with an outer cone barrel, the middle part of the fertilizer discharge chute is provided with a fertilizer inlet, the fertilizer inlet is connected with a backpack type fertilizer storage tank through a pipeline, the inside of the fertilizer discharge chute is provided with a fertilizer control rod, one end of the fertilizer control rod is connected with an inner cone barrel, the inner cone barrel is located in the outer cone barrel and the end part of the inner cone barrel protrudes from the outer cone barrel, a return spring is connected between the other end of the fertilizer control rod and the fertilizer discharge chute, the fertilizer discharge chute between the fertilizer inlet and the outer cone barrel is provided with a first fertilizer control opening and a second fertilizer control opening, the first fertilizer control opening is arranged close to the fertilizer inlet, a fertilizer application quantitative cavity is formed between the first fertilizer control opening and the second fertilizer control opening, the fertilizer control rod in the fertilizer application quantitative cavity is provided with a first valve head capable of opening and closing the first fertilizer control opening and a second valve head capable of opening and closing the second fertilizer control opening, in the natural state of the return spring, the first valve head opens the first fertilizer control opening and the second valve head closes the second fertilizer control opening, in the deformed state of the return spring, the first valve head closes the first fertilizer control opening and the second valve head opens the second fertilizer control opening.
[0006] Further, the other end of the fertilizer control rod penetrates the end part of the fertilizer discharge chute and is connected with a first limiting block, the return spring is a tensile spring, the tensile spring is sleeved on the fertilizer control rod and one end of the tensile spring is connected with the first limiting block and the other end of the tensile spring is connected with the end face of the fertilizer discharge chute.
[0007] Further, the second limiting block is arranged on the fertilizer control rod near the other end, the reset spring is a compression spring, the compression spring is sleeved on the fertilizer control rod, and one end of the compression spring abuts against the second limiting block and the other end abuts against the inner end surface of the fertilizer discharging chute.
[0008] Further, the first fertilizer control opening is a sandglass-shaped opening, the second fertilizer control opening is a tapered opening, and the large end of the second fertilizer control opening faces the first fertilizer control opening, and the first valve head and the second valve head are spherical heads.
[0009] Further, the other end of the fertilizer discharging chute is vertically provided with a handle on each of the opposite sides.
[0010] The utility model discloses beneficial effect is:
[0011] The utility model discloses a quantitative annular fertilizer applicator for flue-cured tobacco planting, under the conventional state, the first valve head opens the first fertilizer control opening, the second valve head closes the second fertilizer control opening, and the granular fertilizer entering through the fertilizer inlet fills the fertilizer quantitative cavity, when fertilizing, the inner tapered cylinder covers the tobacco seedling, the fertilizer discharging chute is pressed down, the reset spring is deformed, the first valve head closes the first fertilizer control opening, the second valve head opens the second fertilizer control opening, and the granular fertilizer in the fertilizer quantitative cavity is discharged through the second fertilizer control opening, under the restriction of the inner tapered cylinder and the outer tapered cylinder, the granular fertilizer is evenly applied to the tobacco seedling periphery, and the fertilizer applicator is simple in structure, easy to operate and low in cost.
[0012] The special structure of the first fertilizer control opening and the second fertilizer control opening can avoid the accumulation of granular fertilizer in the fertilizer discharging chute.
[0013] The other advantages, objects and features of the utility model will be described in the subsequent description to some extent, and to some extent, will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following description. DRAWINGS
[0014] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be further described in detail below with reference to the drawings, and the drawings will be briefly described as follows:
[0015] Figure 1 It is the front view of the stretch spring in the natural state in the utility model embodiment one.
[0016] Figure 2 It is the front view of the stretch spring in the deformed state in the utility model embodiment one.
[0017] Figure 3 It is the front view of the stretch spring in the natural state in the utility model embodiment two.
[0018] Figure 4 This is a front sectional view of the tension spring in the deformed state in Embodiment 2 of this utility model.
[0019] In the diagram: 1. Fertilizer discharge pipe; 2. Handle; 3. Outer cone; 4. Fertilizer inlet; 5. Pipeline; 6. Backpack-type fertilizer storage box; 7. Fertilizer control rod; 8. First limit block; 9. Tension spring; 10. Inner cone; 11. First fertilizer control port; 12. Second fertilizer control port; 13. First valve head; 14. Second valve head; 15. Second limit block; 16. Compression spring. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] like Figure 1 As shown, a quantitative ring fertilizer applicator for flue-cured tobacco cultivation includes a vertically arranged fertilizer discharge pipe 1. Handles 2 are vertically arranged on opposite sides of the upper end of the fertilizer discharge pipe 1. An outer cone 3 is connected to the lower end of the fertilizer discharge pipe 1. A fertilizer inlet 4 is located in the middle of the fertilizer discharge pipe 1, and the fertilizer inlet 4 is connected to a backpack-type fertilizer storage box 6 via a pipe 5. A fertilizer control rod 7 is located inside the fertilizer discharge pipe 1. The upper end of the fertilizer control rod 7 passes through the end of the fertilizer discharge pipe 1 and is connected to a first limiting block 8. A tension spring 9 is sleeved on the fertilizer control rod 7 between the first limiting block 8 and the end face of the fertilizer discharge pipe 1. The two ends of the tension spring 9 are connected to the first limiting block 8 and the fertilizer discharge pipe 1, respectively. An inner cone 10 is connected to the lower end of the fertilizer control rod 7. The inner cone 10 is located inside the outer cone 3, and the lower end of the inner cone 10 is exposed outside the outer cone 3. A first fertilizer control port 11 and a second fertilizer control port 12 are provided on the fertilizer discharge pipe 1 between the fertilizer inlet 4 and the outer cone 3. The first fertilizer control port 11 is an hourglass-shaped opening, and the second fertilizer control port 12 is a conical opening with its large end facing the first fertilizer control port 11. The first fertilizer control port 11 is located close to the fertilizer inlet 4. The space between the first fertilizer control port 11 and the second fertilizer control port 12 is a fertilizer metering chamber. The fertilizer control rod 7 located in the fertilizer metering chamber is provided with a first valve head 13 that can open and close the first fertilizer control port 11 and a second valve head 14 that can open and close the second fertilizer control port 12. Both the first valve head 13 and the second valve head 14 are ball heads. When the tension spring 9 is in its natural state, the first valve head 13 opens the first fertilizer control port 11, and the second valve head 14 closes the second fertilizer control port 12. The fertilizer particles entering from the fertilizer inlet 4 fill the fertilizer metering chamber. During fertilization, the inner cone 10 covers the tobacco seedlings, presses down the fertilizer discharge pipe 1, stretches the spring 9, closes the first control port 11 with the first valve head 13, and opens the second control port 12 with the second valve head 14. The granular fertilizer in the fertilization metering chamber flows out through the second control port 12. Under the constraint of the inner cone 10 and the outer cone 3, the granular fertilizer is evenly applied around the tobacco seedlings. This fertilizer applicator has a simple structure, is easy to operate, and has low cost.
[0023] Example 2
[0024] The difference from Embodiment 1 is that the upper end of the fertilizer discharge pipe 1 is closed, and the fertilizer control rod 7 is provided with a second limiting block 15 near its upper end. A compression spring 16 is sleeved on the upper end of the fertilizer control rod 7. One end of the compression spring 16 abuts against the second limiting block 15, and the other end abuts against the inner end face of the fertilizer discharge pipe 1. When the fertilizer discharge pipe 1 is pressed down, the compression spring 16 is compressed, the first valve head 13 closes the first fertilizer control port 11, and the second valve head 14 opens the second fertilizer control port 12.
[0025] 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 quantitative ring fertilizer applicator for flue-cured tobacco planting, comprising a fertilizer discharge pipe (1), one end of which is connected to an outer cone (3), a fertilizer inlet (4) in the middle of the fertilizer discharge pipe (1), the fertilizer inlet (4) being connected to a backpack fertilizer storage box (6) via a pipe (5), a fertilizer control rod (7) inside the fertilizer discharge pipe (1), one end of which is connected to an inner cone (10), the inner cone (10) being located inside the outer cone (3) and the end of the inner cone (10) protruding from the outer cone (3), and a return spring connected between the other end of the fertilizer control rod (7) and the fertilizer discharge pipe (1), characterized in that: A first fertilizer control port (11) and a second fertilizer control port (12) are provided on the fertilizer discharge pipe (1) between the fertilizer inlet (4) and the outer cone (3). The first fertilizer control port (11) is located close to the fertilizer inlet (4). The space between the first fertilizer control port (11) and the second fertilizer control port (12) is a fertilizer metering chamber. The fertilizer control rod (7) located in the fertilizer metering chamber is provided with a first valve head (13) that can open and close the first fertilizer control port (11) and a second valve head (14) that can open and close the second fertilizer control port (12). When the return spring is in its natural state, the first valve head (13) opens the first fertilizer control port (11) and the second valve head (14) closes the second fertilizer control port (12). When the return spring is in its deformed state, the first valve head (13) closes the first fertilizer control port (11) and the second valve head (14) opens the second fertilizer control port (12).
2. The quantitative ring fertilizer applicator for flue-cured tobacco planting according to claim 1, characterized in that: The other end of the fertilizer control rod (7) passes through the end of the fertilizer discharge pipe (1) and is connected to the first limiting block (8). The reset spring is a tension spring (9). The tension spring (9) is sleeved on the fertilizer control rod (7) and one end is connected to the first limiting block (8), and the other end is connected to the end face of the fertilizer discharge pipe (1).
3. The quantitative ring fertilizer applicator for flue-cured tobacco planting according to claim 1, characterized in that: The fertilizer control rod (7) is provided with a second limiting block (15) near its other end. The reset spring is a compression spring (16). The compression spring (16) is sleeved on the fertilizer control rod (7) with one end abutting against the second limiting block (15) and the other end abutting against the inner end face of the fertilizer discharge pipe (1).
4. The quantitative ring fertilizer applicator for flue-cured tobacco planting according to any one of claims 1-3, characterized in that: The first fertilizer control port (11) is an hourglass-shaped port, the second fertilizer control port (12) is a conical port with its large end facing the first fertilizer control port (11), and the first valve head (13) and the second valve head (14) are both ball heads.
5. The quantitative ring fertilizer applicator for flue-cured tobacco planting according to claim 4, characterized in that: The other end of the manure discharge pipe (1) is provided with handles (2) on both sides perpendicularly.