Quantitative fertilization equipment for soil fertilizer
By designing a soil fertilizer quantitative application equipment with a storage bin, opening and closing device, and gas spring control, the problems of low automation and poor material discharge in the existing technology have been solved. This has enabled quantitative release of fertilizer and smooth opening and closing, thus improving the automation and reliability of the fertilizer application equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INST OF PLANT NUTITUION & RESOURCE ENVIRONMENT HENAN ACADEMY OF AGRI SCI
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-12
AI Technical Summary
Existing press-type fertilizer applicators have low automation levels, uneven fertilizer particle quantity, and problems such as poor discharge or jammed valve plates, which hinder the promotion of fertilizer applicators.
A soil fertilizer quantitative application device was designed, which includes a storage bin, an opening and closing device, a feed pipe, and a gas spring control. The device achieves automated control of opening the hole and releasing fertilizer through foot pedal operation, and smooth opening and closing is achieved by the cooperation of gas spring and flow stop plate.
It improves the automation level of the fertilization process, ensures the quantitative release of fertilizer, avoids leakage and jamming, and enhances the reliability and efficiency of the fertilization device.
Smart Images

Figure CN224218896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural implements, specifically to a soil fertilizer quantitative application device. Background Technology
[0002] In agricultural planting, it is generally necessary to fertilize the land to ensure that the soil has sufficient nutrients to support crop growth. Currently, the commonly used press-type fertilizer applicator requires manual release of fertilizer granules after pressing out the soil hole once. The overall level of automation is low, and the number of fertilizer granules discharged often varies greatly. In addition, the two-stage fertilizer drive structure often leads to poor overall discharge or jamming of the opening and closing valve plate, which prevents the internal fertilizer discharge from being shut off. This seriously affects the promotion of manual press-type spot fertilization devices in the agricultural field. Utility Model Content
[0003] The purpose of this invention is to provide a soil fertilizer quantitative application device that can effectively solve the problems existing in the background technology.
[0004] To address the problems existing in the background art, it includes a storage bin 1 for storing fertilizer. The bottom of the storage bin 1 is fixedly equipped with an opening and closing device communicating with its interior. A vertical rod 2 is installed at the bottom of the opening and closing device. A hole-opening rod 3 is installed at the bottom of the vertical rod 2. A foot pedal connecting rod 4 is fixedly installed on one side of the hole-opening rod 3. A foot pedal 5 is fixedly installed at the end of the foot pedal connecting rod 4. A material guide pipe 6 is fixedly installed on one side of the opening and closing device. The outlet end of the material guide pipe 6 extends to the vicinity directly above the hole-opening rod 3.
[0005] The opening and closing device includes a control box 7, which is a rectangular box structure. A gas spring 8 is installed on the top inside the control box 7. A guide valve plate 9 that can move up and down against the inner wall of the control box 7 is fixedly installed on the piston shaft end of the gas spring 8. A first valve hole 10 communicating with the inside of the storage box 1 and a second valve hole 11 communicating with the guide pipe 6 are respectively opened on both sides of the control box 7. The upper top surface of the guide valve plate 9 is an inclined structure that is inclined towards the second valve hole 11.
[0006] Below the first valve hole 10, a first stop plate 12 is provided that can move up and down to fit the inner wall of the control box 7. The first stop plate 12 is fixedly installed on the bottom surface of the guide valve plate 9. On one side of the second valve hole 11, a second stop plate 13 is provided that can move up and down to fit the inner wall of the control box 7. The second stop plate 13 is fixedly installed on the top surface of the guide valve plate 9. A third valve hole 14 is provided on the second stop plate 13 that can connect with the second valve hole 11.
[0007] When the piston shaft of the gas spring 8 is compressed to its highest point, the third valve hole 14 on the second stop plate 13 is exactly concentric with the second valve hole 11, and the first stop plate 12 also completely covers the first valve hole 10; when the piston shaft of the gas spring 8 is extended to its lowest point, the top surface of the guide valve plate 9 is completely offset from the first valve hole 10, and the second stop plate 13 also completely covers the second valve hole 11.
[0008] Handle rods 15 are installed on both sides of the top of the storage box 1.
[0009] The material guide valve plate 9 is equipped with linkage seats 16 on both sides. Each linkage seat 16 is vertically mounted with a guide shaft 17 on its outer side. The end of the guide shaft 17 extends into the control box 7 and is connected to the pressing rod 18. The bottom of the two pressing rods 18 is connected by a pressing plate 19. The plane of the pressing plate 19 is a C-shaped arc structure concentric with the opening drill 3. The control box 7 is provided with a guide groove 20 that slides with the guide shaft 17 with clearance.
[0010] The opening drill 3 is a conical structure with a slot a on one side for the granular fertilizer to be retained in the pit.
[0011] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: the structure is simple, and all actions of opening the pit and releasing granular fertilizer can be completed by simply stepping on the foot pedal to press down and open the pit, which improves the overall automation level. Moreover, the overall opening and closing action is relatively smooth, avoiding the phenomenon of leakage or non-discharge of material. Attached Figure Description
[0012] 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 these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is the external structure of the control box in this utility model;
[0015] Figure 3 This is a perspective view of the hole-opening drill in this utility model;
[0016] Figure 4 This is a top view of the lower pressure plate in this utility model. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model.
[0018] See Figure 1-4 This specific embodiment is implemented using the following technical solution: it includes a storage box 1 for storing fertilizer. The bottom of the storage box 1 is fixedly installed with an opening and closing device communicating with its interior. A vertical rod 2 is installed at the bottom of the opening and closing device. A hole-opening rod 3 is installed at the bottom of the vertical rod 2. A foot pedal connecting rod 4 is fixedly installed on one side of the hole-opening rod 3. A foot pedal 5 is fixedly installed at the end of the foot pedal connecting rod 4. A material guide pipe 6 is fixedly installed on one side of the opening and closing device. The outlet end of the material guide pipe 6 extends to the vicinity directly above the hole-opening rod 3.
[0019] The opening and closing device includes a control box 7, which is a rectangular box structure. A gas spring 8 is installed on the top inside the control box 7. A guide valve plate 9 that can move up and down against the inner wall of the control box 7 is fixedly installed on the piston shaft end of the gas spring 8. A first valve hole 10 communicating with the inside of the storage box 1 and a second valve hole 11 communicating with the guide pipe 6 are respectively opened on both sides of the control box 7. The upper top surface of the guide valve plate 9 is an inclined structure that is inclined towards the second valve hole 11.
[0020] Below the first valve hole 10, a first stop plate 12 is provided that can move up and down to fit the inner wall of the control box 7. The first stop plate 12 is fixedly installed on the bottom surface of the guide valve plate 9. On one side of the second valve hole 11, a second stop plate 13 is provided that can move up and down to fit the inner wall of the control box 7. The second stop plate 13 is fixedly installed on the top surface of the guide valve plate 9. A third valve hole 14 is provided on the second stop plate 13 that can connect with the second valve hole 11.
[0021] When the piston shaft of the gas spring 8 is compressed to its highest point, the third valve hole 14 on the second stop plate 13 is exactly concentric with the second valve hole 11, and the first stop plate 12 also completely covers the first valve hole 10; when the piston shaft of the gas spring 8 is extended to its lowest point, the top surface of the guide valve plate 9 is completely offset from the first valve hole 10, and the second stop plate 13 also completely covers the second valve hole 11.
[0022] Handle rods 15 are installed on both sides of the top of the storage box 1.
[0023] The material guide valve plate 9 is equipped with linkage seats 16 on both sides. Each linkage seat 16 is vertically mounted with a guide shaft 17 on its outer side. The end of the guide shaft 17 extends into the control box 7 and is connected to the pressing rod 18. The bottom of the two pressing rods 18 is connected by a pressing plate 19. The plane of the pressing plate 19 is a C-shaped arc structure concentric with the opening drill 3. The control box 7 is provided with a guide groove 20 that slides with the guide shaft 17 with clearance.
[0024] The opening drill 3 is a conical structure with a slot a on one side for the granular fertilizer to be retained in the pit.
[0025] The following, in conjunction with the accompanying drawings, further elaborates on the usage method and principle of the technical solution in this specific embodiment:
[0026] First, ensure that the storage bin 1 is filled with granular fertilizer and check if the fertilizer is clumped. Then, hold the handle rod 15 with both hands and insert the hole-opening rod 3 into the designated soil surface. The operator then uses their foot to step on the foot pedal 5 to lower the entire fertilization device. During the descent, the lower pressure plate 19 first contacts the soil surface, and the upward thrust of the lower pressure plate 19 drives the lower pressure connecting rod 18, the linkage seat 16, and the guide valve plate 9 to compress the air spring 8 upward. During the upward movement, the guide valve plate 9 gradually closes the first valve hole 10. As the third valve hole 14 gradually aligns with the second valve hole 11, the granular fertilizer remaining on the guide valve plate 9 will enter the guide pipe 6 through the third valve hole 14 and the second valve hole 11, and finally fall into the opening rod 3. When the handle rod 15 is lifted to make the opening rod 3 leave the pit, the granular fertilizer in the opening rod 3 will fall into the pit through the slot a.
[0027] When the pressure plate 19 is no longer in contact with the soil surface, and the piston shaft of the gas spring 8 extends to its lowest point, the top surface of the guide valve plate 9 is completely offset from the first valve hole 10. At this time, the granular fertilizer in the storage box 1 will enter the upper part of the material valve plate 9 through the first valve hole 10 and remain there.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A soil fertilizer quantitative application device, characterized in that... It includes a storage bin (1) for storing fertilizer, with an opening and closing device fixedly installed at the bottom of the storage bin (1) and communicating with its interior. A pole (2) is installed at the bottom of the opening and closing device, and a hole-opening rod (3) is installed at the bottom of the pole (2). A foot pedal link (4) is fixedly installed on one side of the hole-opening rod (3), and a foot pedal (5) is fixedly installed at the end of the foot pedal link (4). A guide pipe (6) is fixedly installed on one side of the opening and closing device, and the outlet end of the guide pipe (6) extends to the vicinity directly above the hole-opening rod (3).
2. The soil fertilizer quantitative application device according to claim 1, characterized in that... The opening and closing device includes a control box (7), which is a rectangular box structure. A gas spring (8) is installed on the top inside the control box (7). A guide valve plate (9) that can move up and down against the inner wall of the control box (7) is fixedly installed on the piston shaft end of the gas spring (8). A first valve hole (10) communicating with the inside of the storage box (1) and a second valve hole (11) communicating with the guide pipe (6) are respectively opened on both sides of the control box (7). The upper top surface of the guide valve plate (9) is an inclined structure that is inclined towards the second valve hole (11). Below the first valve hole (10), there is a first stop plate (12) that can move up and down against the inner wall of the control box (7). The first stop plate (12) is fixedly installed on the bottom surface of the guide valve plate (9). On one side of the second valve hole (11), there is a second stop plate (13) that can move up and down against the inner wall of the control box (7). The second stop plate (13) is fixedly installed on the top surface of the guide valve plate (9). The second stop plate (13) has a third valve hole (14) that can connect with the second valve hole (11). When the piston shaft of the gas spring (8) is compressed to the highest point, the third valve hole (14) on the second stop plate (13) is exactly concentric with the second valve hole (11), and the first stop plate (12) also completely covers the first valve hole (10); when the piston shaft of the gas spring (8) is extended to the lowest point, the top surface of the guide valve plate (9) is completely offset from the first valve hole (10), and the second stop plate (13) also completely covers the second valve hole (11).
3. The soil fertilizer quantitative application device according to claim 1, characterized in that... The storage box (1) has handles (15) installed on both sides of the top.
4. The soil fertilizer quantitative application device according to claim 2, characterized in that... The material guide valve plate (9) is equipped with a linkage seat (16) on both sides. Each linkage seat (16) is vertically mounted with a guide shaft (17) on its outer side. The end of the guide shaft (17) extends out to the control box (7) and is connected to the pressing rod (18). The bottom of the two pressing rods (18) is connected by a pressing plate (19). The plane of the pressing plate (19) is a C-shaped arc structure concentric with the hole opening drill (3). The control box (7) is provided with a guide groove (20) that slides with the guide shaft (17) with clearance.
5. A soil fertilizer quantitative application device according to claim 4, characterized in that... The hole-opening rod (3) is a conical structure with a groove (a) on one side for the final retention of granular fertilizer in the hole.