Agricultural fertilizer slow release device

By introducing a stirring structure and an anti-clogging structure into the slow-release tank, the problem of fertilizer sedimentation is solved, and uniform mixing of fertilizer and liquid is achieved, as well as anti-clogging of the slow-release port, thereby improving fertilization effect and fertilizer supply efficiency.

CN224218902UActive Publication Date: 2026-05-12HEILONGJIANG WANFENGDE FERTILIZER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG WANFENGDE FERTILIZER CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing agricultural fertilizer slow-release devices, fertilizer particles tend to settle inside the liquid, resulting in a low fertilizer content in the outflowing liquid, which affects crop growth and development.

Method used

Design a slow-release tank with a stirring structure, including a stirring paddle and a stirring motor. The stirring structure makes the liquid flow, preventing fertilizer sedimentation, and is equipped with an anti-clogging structure to prevent the slow-release port from getting blocked.

Benefits of technology

Ensure that the fertilizer and liquid are mixed evenly to prevent the slow-release port from clogging, improve the fertilization effect and fertilizer supply efficiency, and ensure that crops receive sufficient nutrients.

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Abstract

The utility model relates to the technical field of fertilizer slow-release devices, and discloses an agricultural fertilizer slow-release device which mainly comprises a slow-release barrel, a slow-release opening is formed in the slow-release barrel, the slow-release barrel is provided with a stirring structure, and the stirring structure comprises a stirring paddle and a stirring motor used for controlling the stirring paddle to rotate; an anti-blocking structure for preventing the slow release opening from being blocked is arranged in the slow release opening, and the anti-blocking structure is linked with the stirring structure. By means of the technical scheme, the problem that in the prior art, liquid in a slow release barrel is in a static state, internal fertilizer is deposited, and the fertilization effect of the device is affected is solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer slow-release devices, and in particular to an agricultural fertilizer slow-release device. Background Technology

[0002] Agricultural fertilizer slow-release devices generally refer to a technology used to control the release rate of fertilizer, aiming to improve fertilizer utilization, reduce environmental pollution, and reduce the frequency of fertilization by farmers.

[0003] Currently, fertilizer slow-release devices typically have a barrel-shaped structure with one or more slow-release ports on their surface for the internal liquid (including but not limited to fertilizer and water) to flow out. However, because the outflow rate of the internal liquid is too slow, fertilizer particles in the liquid inside are prone to sedimentation, resulting in low or even no fertilizer content in the liquid flowing out of the slow-release ports. Consequently, crops cannot obtain sufficient nutrients, affecting their normal growth and development. Utility Model Content

[0004] The main purpose of this invention is to provide an agricultural fertilizer slow-release device, which aims to solve the problem that the fertilizer inside the slow-release tank is deposited due to the liquid being in a static state, thus affecting the fertilization effect of the device.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An agricultural fertilizer slow-release device includes a slow-release tank with a slow-release port. The slow-release tank is equipped with a stirring structure, which includes a stirring paddle and a stirring motor for controlling the rotation of the stirring paddle. The slow-release port is equipped with an anti-clogging structure to prevent clogging, and the anti-clogging structure is linked to the stirring structure.

[0007] Furthermore, the stirring paddle is equipped with a linkage cam, and the anti-clogging structure includes an anti-clogging rod, a reset elastic element, and a sliding frame. The sliding frame is fixedly installed in the slow-release tank, and the reset elastic element is located between the anti-clogging rod and the sliding frame. The anti-clogging rod is linked with the linkage cam, and the anti-clogging rod is slidably connected to the sliding frame and can be embedded in the slow-release port.

[0008] Furthermore, the cross-section of the anti-blocking rod is an "H" shaped structure, and the reset elastic element is located at the end of the sliding frame away from the release port.

[0009] Furthermore, each of the slow-release ports and anti-clogging structures is provided in multiples, and each anti-clogging structure and each slow-release port are evenly distributed around the slow-release container in a circular pattern and are matched one-to-one with each other.

[0010] Furthermore, the anti-clogging rod includes a cleaning plate, which is located at one end of the sliding frame close to the release port, and the distance between the sliding frame and the release port is greater than the length of the cleaning plate in the radial direction of the anti-clogging rod.

[0011] Furthermore, the linkage cam is provided with several protrusions.

[0012] Furthermore, the slow-release container is equipped with a replenishment tube, which connects the inside and outside of the slow-release container.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] This utility model's technical solution employs a stirring structure designed to match the slow-release tank, which agitates the liquid inside the tank, keeping it in a flowing state and effectively preventing fertilizer from settling. Furthermore, the stirring action of the structure ensures that the fertilizer is evenly mixed with the liquid inside the tank, thus guaranteeing the fertilizer content in the liquid flowing out from the slow-release outlet and ensuring the fertilization and fertilizer supply effects of this utility model.

[0015] Meanwhile, the slow-release tank of this utility model is also equipped with an anti-clogging structure in the slow-release port. The anti-clogging structure plays a role in clearing the slow-release port and preventing soil or soil particles from clogging the slow-release port when this utility model is buried in the soil, thus affecting the liquid discharge efficiency of this utility model. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0018] Figure 2 This is a schematic diagram of the internal structure of this embodiment;

[0019] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0020] Figure 4 for Figure 1 A sectional view.

[0021] Explanation of icon numbers:

[0022] 1. Slow-release tank; 11. Slow-release port; 12. Replenishment pipe; 2. Stirring structure; 21. Stirring paddle; 211. Linkage cam; 2111. Protrusion; 22. Stirring motor; 3. Anti-clogging structure; 31. Anti-clogging rod; 311. Cleaning plate; 32. Reset elastic element; 33. Sliding frame.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] like Figures 1-2 As shown in the figure, this embodiment proposes an agricultural fertilizer slow-release device, mainly including a slow-release tank 1, on which a slow-release port 11 is provided. It should be noted that, in order to more clearly show the specific structure of the slow-release port 11 and the structure that cooperates with it, the relevant parts are enlarged in the attached figure. Correspondingly, the dimensions of the slow-release port 11 and the structure that cooperates with it should be determined by the actual use requirements, and will not be described in detail in this embodiment.

[0026] To prevent the liquid inside the slow-release tank 1 from remaining stagnant and causing fertilizer components and particles to settle, the slow-release tank 1 in this embodiment is equipped with a stirring structure 2. Specifically, the stirring structure 2 mainly includes a stirring paddle 21 and a stirring motor 22 for controlling the rotation of the stirring paddle 21. The stirring motor 22 is fixedly installed on the top of the slow-release tank 1 to ensure that the stirring motor 22 can stably provide driving force. The stirring paddle 21 is rotatably connected to the slow-release tank 1 and linked with the output shaft of the stirring motor 22. Thus, after the stirring motor 22 is started, the stirring paddle 21 can stir the liquid inside the slow-release tank 1, making the liquid flow and uniformly mixing the fertilizer particles into the liquid, thereby ensuring the fertilizer content in the liquid flowing out along the slow-release port 11 and guaranteeing the fertilization and supply effect of this embodiment.

[0027] In this embodiment, the stirring motor 22 is preferably a waterproof brushless DC motor or other motor with waterproof capability and is usually equipped with a lithium battery or other power-saving components during use, which ensures both the waterproof performance and the power-saving performance of the stirring motor 22.

[0028] The slow-release tank 1 is equipped with a replenishment pipe 12, which connects the inside and outside of the slow-release tank 1. The replenishment pipe 12 and the rotating port on the slow-release tank 1 for connecting the stirring paddle 21 are offset from each other and are independent, which facilitates the replenishment of fertilizer and liquid in the subsequent use of this embodiment.

[0029] Meanwhile, to prevent soil particles from entering the slow-release port 11 or even the slow-release tank 1 when the embodiment is buried in the soil, thus blocking the water outlet path of the slow-release tank 1, an anti-clogging structure 3 is provided in the slow-release port 11 to prevent clogging.

[0030] Furthermore, the anti-clogging structure 3 is linked with the stirring structure 2 so that the anti-clogging structure 3 is activated as the stirring structure 2 operates. This avoids the need for an additional drive component to operate the anti-clogging structure 3, effectively reducing the operating energy consumption of this embodiment. Specifically, the stirring paddle 21 is equipped with a linkage cam 211, which is fixedly connected to the stirring paddle 21 to ensure that the linkage cam 211 can rotate as the stirring paddle 21 rotates.

[0031] The anti-clogging structure 3 mainly includes an anti-clogging rod 31, a reset elastic element 32, and a sliding frame 33. The sliding frame 33 is fixedly installed in the slow-release tank 1. The anti-clogging rod 31 is linked to the linkage cam 211 and slidably connected to the sliding frame 33, allowing it to be embedded in the slow-release port 11. Specifically, the anti-clogging rod 31 slides as the linkage cam 211 rotates by abutting against its radial surface, ultimately embedding itself in the slow-release port 11 and pushing the soil out of the port, thus cleaning it. Specifically, the linkage cam 211 has a protrusion 2111. When the linkage cam 211 rotates a certain angle, the protrusion 2111 abuts against the anti-clogging rod 31, causing the anti-clogging rod 31 to embed itself in the slow-release port 11.

[0032] The reset elastic element 32 is located between the anti-blocking rod 31 and the sliding frame 33. The two ends of the reset elastic element 32 are fixedly connected to the anti-blocking rod 31 and the sliding frame 33 respectively, so that the movement of the anti-blocking rod 31 can trigger the reset elastic element 32, causing the reset elastic element 32 to deform. As the linkage cam 211 continues to rotate, after the abutment relationship between the protrusion 2111 and the anti-blocking rod 31 is canceled, the anti-blocking rod 31 can continue to maintain the abutment relationship with the linkage cam 211 under the reset action of the reset elastic element 32, ensuring the linkage cycle between the anti-blocking structure 3 and the stirring structure 2.

[0033] like Figure 1 , Figure 4As shown, several slow-release ports 11 and anti-clogging structures 3 are provided. Each anti-clogging structure 3 and each slow-release port 11 are evenly distributed around the slow-release tank 1 in a circular pattern and are matched one-to-one with each other. By adding slow-release ports 11, the fertilizer supply and application efficiency of this embodiment is improved. Even if one slow-release port 11 becomes blocked, the remaining slow-release ports 11 can still continue to supply and apply fertilizer efficiently, improving the fault tolerance of this embodiment. Correspondingly, the added anti-clogging structures 3 serve to unclog each slow-release port 11.

[0034] The linkage cam 211 is provided with several protrusions 2111. By increasing the protrusions 2111, the frequency of triggering the anti-blocking structure 3 by the linkage cam 211 is increased, thereby avoiding the working interval between two slow release ports 11 dredging operations being too long, which would cause excessive soil accumulation inside the slow release port 11 and increase the difficulty of dredging the anti-blocking structure 3.

[0035] like Figures 2-3 As shown, the cross-section of the anti-blocking rod 31 is an "H" shaped structure, meaning that both ends of the anti-blocking rod 31 have limiting structures to prevent the anti-blocking rod 31 from detaching from the sliding frame 33 during movement, effectively ensuring the overall stability of the anti-blocking structure 3.

[0036] Meanwhile, the anti-clogging rod 31 includes a cleaning plate 311, which is located at the end of the sliding frame 33 close to the slow-release port 11 and is fixedly connected to that end. That is, as the anti-clogging rod 31 moves, the cleaning plate 311 gradually approaches and moves away from the slow-release port 11 to perform cleaning work or stop cleaning work to restore the normal liquid flow path of the slow-release port 11; and the cleaning plate 311 can be regarded to a certain extent as a limiting structure located on the end of the anti-clogging rod 31 close to the slow-release port 11, thus serving two purposes.

[0037] The distance between the sliding frame 33 and the slow-release port 11 is greater than the length of the cleaning plate 311 in the radial direction of the anti-clogging rod 31. That is, when the anti-clogging rod 31 is reset, there is a distance between the cleaning plate 311 and the slow-release port 11, ensuring that the liquid in the slow-release tank 1 can flow out normally through the slow-release port 11. Correspondingly, the reset elastic element 32 is located at the end of the sliding frame 33 away from the slow-release port 11, ensuring that there is a sufficient distance between the cleaning plate 311 and the slow-release port 11, and ensuring the outflow efficiency of the liquid flowing out through the slow-release port 11.

[0038] In this embodiment, the reset elastic element 32 is preferably a compression spring, so that it can be directly sleeved on the anti-blocking rod 31 (between the limiting structures at both ends of the anti-blocking rod 31). The structure of the anti-blocking rod 31 itself constrains the reset elastic element 32, ensuring the positional stability between the reset elastic element 32 and the anti-blocking rod 31. Simultaneously, the reset elastic element 32 should preferably be made of corrosion-resistant materials such as stainless steel to prevent corrosion and erosion from the fertilizer mixture inside the slow-release tank 1, thereby improving the service life of each reset elastic element 32.

[0039] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An agricultural fertilizer slow-release device, comprising a slow-release tank (1), wherein the slow-release tank (1) is provided with a slow-release port (11), characterized in that, The slow-release tank (1) is equipped with a stirring structure (2), which includes a stirring paddle (21) and a stirring motor (22) for controlling the rotation of the stirring paddle (21). The slow-release port (11) is provided with an anti-clogging structure (3) to prevent it from being blocked, and the anti-clogging structure (3) is linked with the stirring structure (2).

2. The fertilizer slow-release device according to claim 1, characterized in that, The stirring paddle (21) is equipped with a linkage cam (211). The anti-blocking structure (3) includes an anti-blocking rod (31), a reset elastic element (32), and a sliding frame (33). The sliding frame (33) is fixedly installed in the slow-release tank (1). The reset elastic element (32) is located between the anti-blocking rod (31) and the sliding frame (33). The anti-blocking rod (31) is linked with the linkage cam (211), and the anti-blocking rod (31) is slidably connected to the sliding frame (33) and can be embedded in the slow-release port (11).

3. The fertilizer slow-release device according to claim 2, characterized in that, The anti-blocking rod (31) has an "H" shaped cross-section, and the reset elastic element (32) is located at the end of the sliding frame (33) away from the release port (11).

4. The fertilizer slow-release device according to claim 2 or 3, characterized in that, The slow-release port (11) and the anti-clogging structure (3) are provided in several ways. Each anti-clogging structure (3) and each slow-release port (11) are evenly distributed around the slow-release barrel (1) and are matched one-to-one with each other.

5. The fertilizer slow-release device according to claim 3, characterized in that, The anti-clogging rod (31) includes a cleaning plate (311), which is located at one end of the sliding frame (33) close to the slow-release port (11). The distance between the sliding frame (33) and the slow-release port (11) is greater than the length of the cleaning plate (311) in the radial direction of the anti-clogging rod (31).

6. The fertilizer slow-release device according to claim 4, characterized in that, The linkage cam (211) is provided with several protrusions (2111).

7. The fertilizer slow-release device according to claim 1, characterized in that, The slow-release container (1) is provided with a replenishment tube (12), which connects the inside and outside of the slow-release container (1).