A tobacco seedling targeted fertilization device

Abstract

This utility model discloses a targeted fertilization device for tobacco seedlings, relating to the field of tobacco fertilization technology. It includes a tube body I, with a feeding hopper fixedly installed at the top. A fixed shaft and a tube body II are concentrically fitted on the inner and outer sides of the tube body I, respectively. A spiral blade is fixedly fitted between the tube body I and the fixed shaft. The upper end of the tube body II is fixedly connected to the feeding hopper. Multiple partition components are uniformly fixedly installed along the circumference between the tube body I and the tube body II. Each partition component includes two parallel partition plates I, and the two partition plates I in each partition component together with the tube body I and the tube body II form an isolation chamber. This targeted fertilization device for tobacco seedlings, on the one hand, employs a spiral centrifugal distribution mechanism to ensure that the fertilizer is evenly distributed in a ring around the seedling roots; on the other hand, it achieves intelligent adjustment of the fertilization radius through a linkage mechanism between a rotating disk and a moving plate, allowing the fertilization point to be dynamically adjusted according to the seedling growth.

Description

Technical Field

[0001] This utility model relates to the field of tobacco fertilization technology, specifically a device for targeted fertilization of tobacco seedlings. Background Technology

[0002] When fertilizing tobacco seedlings, fertilizer is usually sprinkled around the seedlings. However, when fertilizer is spread by hand, the fertilizer is not only unevenly distributed, but sometimes the fertilizer is too close to the seedlings, which can cause seedling burn.

[0003] Therefore, it is necessary to propose a targeted fertilization device for tobacco seedlings to solve the above problems. Utility Model Content

[0004] Technical problem to be solved: The purpose of this utility model is to provide a directional fertilization device for tobacco seedlings, so as to solve the problem mentioned in the background art that when fertilizing tobacco seedlings, fertilizer is usually sprinkled around the tobacco seedlings. However, when fertilizer is sprinkled manually, the fertilizer is not only unevenly distributed, but sometimes the fertilizer is too close to the tobacco seedlings, which can cause seedling burn.

[0005] Technical Solution: To achieve the above objectives, this utility model is implemented through the following technical solution: A tobacco seedling directional fertilization device includes a tube body I, a feeding hopper fixedly installed at the top of the tube body I, a fixed shaft and a tube body II concentrically fitted on the inner and outer sides of the tube body I, a spiral blade fixedly fitted between the tube body I and the fixed shaft, and the upper end of the tube body II fixedly connected to the feeding hopper; multiple partition components are uniformly fixedly installed along the circumference between the tube body I and the tube body II, each partition component including two parallel partition plates I, each partition plate I forming an isolation cavity together with the tube body I and the tube body II, and multiple through holes are uniformly opened on the tube body I within the isolation cavity; the lower end of the tube body I is sealed and located above the lower end of the tube body II, a frustum is concentrically fixedly installed on the inner bottom surface of the tube body I, and multiple discharge ports are opened at the bottom of the tube body I, with each discharge port corresponding to and communicating with the isolation cavity.

[0006] Preferably, it also includes a variable diameter fertilization mechanism disposed at the lower end of the pipe body II. The variable diameter fertilization mechanism includes an adjustment component, a fixing ring fixedly fitted outside the pipe body II, and a cover body II concentrically fixedly installed at the lower end of the pipe body I. The cover body I is fixedly fitted outside the fixing ring. The cover body II is a rotating body with a frustum-shaped upper part and a cylindrical lower part. A connecting ring is fixedly fitted between the cover body I and the cover body II.

[0007] Preferably, partition plates II are fixedly installed parallel to each other at the lower ends of the plurality of partition plates I. Any two adjacent parallel partition plates II together with the cover I, the cover II and the connecting ring form a transition cavity. A through groove is opened on the bottom plate of each transition cavity. The two ends of the through groove pass through the cover I and the cover II respectively. The plurality of through grooves are evenly arranged along the axis of the cover II.

[0008] Preferably, the adjustment assembly includes a rotating disk concentrically mounted inside the cover II, and a movable plate slidably mounted inside the through groove. A discharge pipe communicating with the corresponding transition cavity is fixedly installed at the bottom of the movable plate. Multiple arc-shaped grooves are evenly opened along the circumference of the rotating disk. Each arc-shaped groove corresponds to a movable plate. A drive rod is movably fitted inside the arc-shaped groove. The lower end of the drive rod is fixedly connected to the corresponding movable plate.

[0009] Preferably, a damping shaft is concentrically rotatably mounted at the bottom of the tube body I, a knob is fixedly mounted at the lower end of the damping shaft, and a rotating disk is fixedly fitted in the middle of the damping shaft.

[0010] Beneficial Effects: Compared with the prior art, this utility model provides a tobacco seedling directional fertilization device. This tobacco seedling directional fertilization device has a unique structure and is easy to use. Its working principle can be divided into two core modules: dual-channel fertilizer delivery and dynamic diameter adjustment. In the fertilizer delivery stage, the device adopts a spiral centrifugal distribution mechanism. When the fertilizer enters from the feed hopper, the spiral blades deliver the fertilizer downward through the rotational motion. The centrifugal force generated in this process causes the fertilizer particles to pass evenly through the through holes on the tube body I and accurately enter the annular isolation chamber formed by the partition plate I. This design constructs a 360° circumferential fertilization channel, ensuring that the fertilizer is evenly distributed in a ring around the seedling roots. The residual fertilizer that is not delivered in time slides down the truncated cone slope and is secondary distributed to each isolation chamber through the bottom discharge port, completely eliminating the problem of internal material accumulation in traditional devices.

[0011] The dynamic diameter control system achieves intelligent adjustment of the fertilization radius through the linkage mechanism of the rotating disk and the moving plate. When the rotating knob drives the rotating disk to rotate, the arc groove drives the drive rod to move radially, simultaneously controlling the position of multiple moving plates, thereby adjusting the distance between the discharge pipe and the plant. This mechanical linkage design allows the fertilization point to be dynamically adjusted according to the growth of the seedlings, avoiding the risk of root burn caused by fertilizer being too close during the seedling stage, and meeting the nutrient coverage needs of different growth stages. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 3 This utility model Figure 2Schematic diagram of the cross section at point AA;

[0015] Figure 4 This utility model Figure 2 Schematic diagram of the cross section at point BB;

[0016] Figure 5 This is a bottom view of the structure of this utility model.

[0017] In the diagram: 1. Pipe body I; 2. Feed hopper; 3. Fixed shaft; 4. Spiral blade; 5. Pipe body II; 6. Divider plate I; 7. Fixed ring; 8. Cover body I; 9. Cover body II; 10. Connecting ring; 11. Divider plate II; 12. Moving plate; 13. Discharge pipe; 14. Damping shaft; 15. Rotating disk; 16. Drive rod; 17. Knob; 18. Frustum; 19. Discharge port; 20. Through hole; 21. Arc groove. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example 1: This Example 1 provides a targeted fertilization device for tobacco seedlings. It is a direct improvement on existing tobacco fertilization devices and has a unique structure. Please refer to [link / reference]. Figure 1-5 As shown, the device includes a pipe body I1, a feed hopper 2 fixedly installed on the top of the pipe body I1, a fixed shaft 3 and a pipe body II5 concentrically fitted on the inner and outer sides of the pipe body I1 respectively, a spiral blade 4 fixedly fitted between the pipe body I1 and the fixed shaft 3, and the upper end of the pipe body II5 fixedly connected to the feed hopper 2; multiple partition components are evenly fixedly installed along the circumference between the pipe body I1 and the pipe body II5, and each partition component includes two parallel partition plates I6. The two partition plates I6 in each partition component together with the pipe body I1 and the pipe body II5 form an isolation cavity. Multiple through holes 20 are evenly opened on the pipe body I1 inside the isolation cavity; the lower end of the pipe body I1 is sealed and located above the lower end of the pipe body II5, a frustum 18 is concentrically fixedly installed on the inner bottom surface of the pipe body I1, and multiple discharge ports 19 are opened at the bottom of the pipe body I1. The discharge ports 19 correspond one-to-one with the isolation cavities and are interconnected.

[0020] Working principle: When using this device to fertilize tobacco seedlings, first, cover the tobacco seedlings with tube II5 and position the seedlings at the axis of tube II5. Then, pour the fertilizer into the feed hopper 2. After entering the feed hopper 2, the fertilizer will roll down along the spiral blades 4 under the action of gravity. While rolling on the spiral blades 4, the fertilizer will also pass through the through holes 20 under the action of centrifugal force and enter each isolation chamber. Then, it will flow out from the lower end of the isolation chamber, thus evenly spreading the fertilizer around the tobacco seedlings and avoiding burning the seedlings. Under normal circumstances, the fertilizer will completely enter each isolation chamber through the through holes 20. When the fertilizer does not completely enter each isolation chamber, the remaining fertilizer is poured onto the truncated cone 18 and then flows down along the conical surface of the truncated cone 18 and enters each isolation chamber through the discharge port 19.

[0021] Example 2: The difference between Example 2 and Example 1 is as follows: Figure 1-5 As shown, it also includes a variable diameter fertilization mechanism set at the lower end of the pipe body II5. The variable diameter fertilization mechanism includes an adjustment component, a fixing ring 7 fixedly fitted on the outside of the pipe body II5, and a cover body II9 concentrically fixedly installed at the lower end of the pipe body I1. The cover body I8 is fixedly fitted on the outside of the fixing ring 7. The cover body II9 is ​​a rotating body with a frustum shape at the top and a cylindrical shape at the bottom. A connecting ring 10 is fixedly fitted between the cover body I8 and the cover body II9.

[0022] Multiple partition plates I6 are fixedly installed with partition plates II11 in parallel at their lower ends. Any two adjacent parallel partition plates II11 together with cover I8, cover II9 and connecting ring 10 form a transition cavity. Each transition cavity has a through groove on its bottom plate. The two ends of the through groove pass through cover I8 and cover II9 respectively. Multiple through grooves are evenly arranged along the axis of cover II9.

[0023] The adjustment assembly includes a rotating disk 15 concentrically mounted within the cover II 9, and a movable plate 12 slidably mounted within a through groove. A discharge pipe 13 communicating with a corresponding transition cavity is fixedly mounted on the bottom of the movable plate 12. Multiple arc-shaped grooves 21 are evenly distributed along the circumference of the rotating disk 15, each corresponding to a movable plate 12. A drive rod 16 is movably fitted within each arc-shaped groove 21, with its lower end fixedly connected to the corresponding movable plate 12. A damping shaft 14 is concentrically mounted on the bottom of the pipe body I 1, with a knob 17 fixedly mounted on its lower end. The rotating disk 15 is fixedly fitted into the middle of the damping shaft 14.

[0024] By setting up a variable diameter fertilization mechanism, when fertilizing, the staff can turn the knob 17 according to the size of the tobacco seedlings. The knob 17 drives the rotating disk 15 to rotate. Then, through the design of the arc groove 21 and the through groove, multiple moving plates 12 are driven to move closer or further away from each other, thereby changing the distance between the discharge pipe 13 and the plant, and thus changing the distance between the fertilizer and the plant.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tobacco seedling directional fertilization device, comprising a tube body I (1), characterized in that: A feed hopper (2) is fixedly installed on the top of the tube body I (1). A fixed shaft (3) and a tube body II (5) are concentrically fitted on the inner and outer sides of the tube body I (1). A spiral blade (4) is fixedly fitted between the tube body I (1) and the fixed shaft (3). The upper end of the tube body II (5) is fixedly connected to the feed hopper (2). Multiple partition components are evenly fixedly installed along the circumference between the tube body I (1) and the tube body II (5). Each partition component includes two parallel partition plates I (6). The two partition plates I (6) in the partition assembly together with the tube I (1) and the tube II (5) form an isolation cavity. The tube I (1) in the isolation cavity is evenly provided with multiple through holes (20). The lower end of the tube I (1) is sealed and located above the lower end of the tube II (5). A frustum (18) is concentrically fixed on the inner bottom surface of the tube I (1). Multiple discharge ports (19) are provided at the bottom of the tube I (1). The discharge ports (19) correspond one-to-one with the isolation cavity and are interconnected.

2. The tobacco seedling directional fertilization device according to claim 1, characterized in that: It also includes a variable diameter fertilizer applicator installed at the lower end of pipe body II (5). The variable diameter fertilizer applicator includes an adjustment component, a fixing ring (7) fixedly fitted outside pipe body II (5), and a cover body II (9) concentrically fixedly installed at the lower end of pipe body I (1). The cover body I (8) is fixedly fitted outside the fixing ring (7). The cover body II (9) is a rotating body with a frustum shape at the top and a cylindrical shape at the bottom. A connecting ring (10) is fixedly fitted between the cover body I (8) and the cover body II (9).

3. The tobacco seedling directional fertilization device according to claim 2, characterized in that: The lower ends of the multiple partition plates I (6) are all fixedly installed with partition plates II (11) in parallel. Any two adjacent parallel partition plates II (11) together with the cover I (8), cover II (9) and connecting ring (10) form a transition cavity. Each transition cavity has a through groove on its bottom plate. The two ends of the through groove pass through the cover I (8) and cover II (9) respectively. Multiple through grooves are evenly arranged along the axis of cover II (9).

4. The tobacco seedling directional fertilization device according to claim 3, characterized in that: The adjustment assembly includes a rotating disk (15) concentrically mounted inside the cover II (9), and a movable plate (12) slidably mounted in the through groove. The bottom of the movable plate (12) is fixedly mounted with a discharge pipe (13) communicating with the corresponding transition cavity. Multiple arc-shaped grooves (21) are evenly opened along the circumference of the rotating disk (15). The arc-shaped grooves (21) correspond one-to-one with the movable plate (12). A drive rod (16) is movably mounted inside the arc-shaped groove (21). The lower end of the drive rod (16) is fixedly connected to the corresponding movable plate (12).

5. A tobacco seedling directional fertilization device according to claim 4, characterized in that: The bottom of the tube body I (1) is concentrically mounted with a damping shaft (14), and a knob (17) is fixedly mounted on the lower end of the damping shaft (14). The rotating disk (15) is fixedly mounted on the middle part of the damping shaft (14).

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