Soil fertilizer applying mixer
By designing a soil fertilizer mixer with a conical mixing hopper and a screw conveyor, the problems of large size and difficult conveying of existing fertilizer mixing machines have been solved, realizing rapid mixing and conveying, and improving the efficiency and convenience of drone fertilization operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽宏盛生态园林工程建设有限公司
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-12
Smart Images

Figure CN224221250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil fertilization technology, and more specifically, it relates to a soil fertilizer mixing device. Background Technology
[0002] Fertilizer refers to substances that can supply the nutrients needed for crop growth and development, improve soil properties, and increase crop yield and quality. It is an important production material in agricultural production. The proper mixing of soil and fertilizer is a key link in improving crop yield and quality. In actual operation, fertilizer mixing machines are often used to mix two or more fertilizers.
[0003] Existing fertilizer mixing machines are typically large in size, making them difficult to transport on vehicles when used in conjunction with fertilizer application drones. Furthermore, after mixing the fertilizer, existing machines struggle to quickly transfer it to the drone's feed hopper, requiring manual emptying, which presents significant limitations in practical operation. Therefore, this paper researches and improves upon existing structures and shortcomings to provide a soil fertilizer mixing device with greater practical value. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a soil fertilizer mixing device, which is achieved by the following specific technical means:
[0005] A soil fertilizer mixing device includes a movable base with four sets of columns mounted on its top. A conical mixing hopper is fixedly mounted on the top of each of the four sets of columns. A through hole is formed at the center of the bottom of the conical mixing hopper, and a discharge pipe is connected to the bottom of the through hole. A screw conveyor is inclinedly mounted on one side of the discharge pipe, and a discharge pipe is connected to the top of the screw conveyor. A rubber hose is connected to the bottom of the discharge pipe. A top plate is mounted on the top of the conical mixing hopper via a locking mechanism, and a motor is fixedly mounted on the top of the top plate. A conveying cylinder is fixedly mounted inside the conical mixing hopper, and multiple inlets are provided on the bottom side of the conveying cylinder. A screw conveying shaft is mounted on the inner bottom of the conveying cylinder via a central frame, and the top of the screw conveying shaft extends from the top of the conveying cylinder. The output shaft of the motor is connected to the top of the screw conveying shaft.
[0006] As a preferred embodiment of this utility model, support rods are vertically installed at the four corners of the top of the movable base, and a rain shield is fixedly installed at the top of the support rods, with the top of the rain shield being conical.
[0007] As a preferred embodiment of this utility model, a handrail is fixedly installed on one side of the movable base, and movable wheels are installed at each of the four corners of the movable base via axles.
[0008] As a preferred technical solution of this utility model, rectangular grooves are provided on both sides of the top of the conical mixing hopper, and limiting blocks corresponding to the rectangular grooves are connected to both sides of the top plate.
[0009] As a preferred embodiment of this utility model, the locking mechanism includes a connecting plate installed on the side of the conical mixing hopper near the handrail. Limiting rods are fixedly installed on one side of both ends of the connecting plate, and each limiting rod passes through a fixing plate. The fixing plate is fixedly connected to the outer side of the conical mixing hopper. Each limiting block has a locking hole at one end. One end of each limiting rod is inserted into the locking hole. A limiting ring is provided on the outer side of each limiting rod, and a spring is fitted onto the outer side of each limiting rod, with both ends of the spring abutting against the limiting ring and the fixing plate, respectively.
[0010] As a preferred embodiment of this utility model, a duckbill spring buckle is fixedly installed on one side of the bottom end of the internal crossbeam of the handrail, and a locking hook corresponding to the duckbill spring buckle is fixedly installed on one side of the connecting plate.
[0011] As a preferred embodiment of this utility model, a sliding groove is provided on one side of the feeding pipe, a baffle plate is slidably connected inside the sliding groove, and a handle is fixedly installed on one side of the baffle plate.
[0012] As a preferred embodiment of this invention, the top of the conveying cylinder is lower than the top of the conical mixing hopper.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention utilizes a screw conveyor shaft, a fixed cylinder, and a motor to quickly transport fertilizer from the bottom of a conical mixing hopper to the top of the fixed cylinder for spreading, achieving rapid mixing. A screw conveyor on one side of the conical mixing hopper allows for rapid transfer of the fertilizer to the drone's feed bin after mixing, improving operational efficiency. Furthermore, this invention features a compact and small overall structure, making it well-suited for vehicle transport and field use, offering high ease of use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 .
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 .
[0017] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .
[0018] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .
[0019] Figure 5 This is a utility model Figure 2 Enlarged diagram of point A in the middle.
[0020] Figure 6 This is a utility model Figure 4 Enlarged diagram of point B in the middle.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1. Mobile base; 2. Column; 3. Conical mixing hopper; 4. Feed pipe; 5. Screw conveyor; 6. Discharge pipe; 7. Center frame; 8. Screw conveyor shaft; 9. Conveyor cylinder; 10. Top plate; 11. Motor; 12. Support rod; 13. Rain shield; 14. Handrail; 15. Casters; 16. Rubber hose; 17. Limit block; 18. Fixing plate; 19. Limit rod; 20. Connecting plate; 21. Limit ring; 22. Locking hook; 23. Duckbill spring buckle; 24. Material baffle plate; 25. Handle; 26. Spring. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example:
[0027] As attached Figure 1 To be continued Figure 6 As shown:
[0028] This utility model provides a soil fertilizer mixing device, including a movable base 1. Four sets of columns 2 are mounted on the top of the movable base 1. A conical mixing hopper 3 is fixedly mounted on the top of each of the four sets of columns 2. A through hole is opened at the center of the bottom of the conical mixing hopper 3, and a discharge pipe 4 is connected to the bottom of the through hole. A screw conveyor 5 is installed obliquely on one side of the discharge pipe 4, and a discharge pipe 6 is connected to the top of the screw conveyor 5. A rubber hose 16 is connected to the bottom of the discharge pipe 6. A top plate 10 is mounted on the top of the conical mixing hopper 3 via a locking mechanism, and a motor 11 is fixedly mounted on the top of the top plate 10. A conveying cylinder 9 is fixedly mounted inside the center of the conical mixing hopper 3, and multiple inlets are provided on the side of the bottom of the conveying cylinder 9. A screw conveying shaft 8 is mounted on the bottom of the conveying cylinder 9 via a central frame 7, and the top of the screw conveying shaft 8 extends out from the top of the conveying cylinder 9. The output shaft of the motor 11 is connected to the top of the screw conveying shaft 8.
[0029] The mobile base 1 has four vertically mounted support rods 12 at its top corners. The top of each support rod 12 is fixedly mounted with a rain shield 13. The top of the rain shield 13 is conical, which can prevent rainwater from seeping into the conical mixing bin 3 during rain, thus preventing the fertilizer or motor 11 from getting damp. At the same time, the conical structure at the top of the rain shield 13 can guide rainwater to slide down the slope quickly, avoiding the accumulation of rainwater at the top and improving the reliability of the equipment in severe weather.
[0030] The mobile base 1 has a handrail 14 fixedly installed on one side, and four corners of the mobile base 1 are equipped with casters 15 via shafts, which facilitates the movement of the equipment by means of the handrail 14 and casters 15, thus improving the ease of use of the device.
[0031] The cone-shaped mixing hopper 3 has rectangular slots on both sides of its top end, and the top plate 10 has limiting blocks 17 on both sides that correspond to the rectangular slots, which can limit and position the top plate 10, thus improving the ease of disassembly and assembly of the device.
[0032] The locking mechanism includes a connecting plate 20 installed on the side of the conical mixing hopper 3 near the handrail 14. Limiting rods 19 are fixedly installed on one side of both ends of the connecting plate 20, and each limiting rod 19 passes through a fixing plate 18, which is fixedly connected to the outer side of the conical mixing hopper 3. Each limiting block 17 has a locking hole at one end; one end of each limiting rod 19 is inserted into the locking hole. Each limiting rod 19 has a limiting ring 21 on its outer side, and a spring 26 is fitted onto the outer side of each limiting rod 19. The two ends of the spring 26 abut against the limiting ring 21 and the fixing plate 18, respectively. Pulling the connecting plate 20 allows the limiting rod 19 inside the limiting block 17 to be pulled out, thus enabling quick disassembly and assembly of the top plate 10 and simplifying the maintenance process.
[0033] The handrail 14 has a duckbill spring buckle 23 fixedly installed on one side of the bottom of the internal crossbeam, and a locking hook 22 corresponding to the duckbill spring buckle 23 is fixedly installed on one side of the connecting plate 20. The duckbill spring buckle 23 and the locking hook 22 cooperate to facilitate the fixing or releasing of the connecting plate 20, thereby improving the ease of use of the device.
[0034] The feeding pipe 4 has a sliding groove on one side, and a baffle plate 24 is slidably connected inside the sliding groove. A handle 25 is fixedly installed on one side of the baffle plate 24. The opening of the feeding pipe 4 can be adjusted by sliding the baffle plate 24. The handle 25 is designed for easy manual adjustment, and the dynamic control of the discharge flow rate can be completed without tools.
[0035] The top of the conveying cylinder 9 is lower than the top of the conical mixing hopper 3, which prevents the fertilizer from spilling onto the outside of the conical mixing hopper 3 during the fertilizer mixing process.
[0036] The working principle of this embodiment:
[0037] When using the mixer, the operator first pours different types of soil and fertilizer raw materials into the cone-shaped mixing hopper 3 through the opening at the top. Then, the motor 11 is started, and its output drives the screw conveyor shaft 8 to rotate at high speed, causing the material to circulate up and down along the conveyor cylinder 9 for thorough mixing. The uniformly mixed material falls into the discharge pipe 4 through the through hole at the bottom of the cone-shaped mixing hopper 3. The operator adjusts the opening of the discharge port and controls the material flow rate by sliding the baffle plate 24 using the handle 25 as needed. The material enters the screw conveyor 5 through the discharge pipe 4. The screw blades of the screw conveyor 5 transport the material along an inclined direction to the discharge pipe 6, and finally discharge it evenly through the rubber hose 16 at the bottom. During discharge, one end of the rubber hose 16 can be placed into the feed box of the drone for quick and convenient feeding. In case of rainy weather, the cone-shaped... The rain shield 13 can guide rainwater to flow around the equipment, preventing it from seeping into the conical mixing silo 3 and causing the fertilizer or motor 11 to get damp. When it is necessary to repair the screw conveyor shaft 8 or the inside of the conical mixing silo 3, the operator pulls the connecting plate 20, causing the two sets of limit rods 19 fixedly connected to the connecting plate 20 to slide outward and disengage from the through hole of the limit block 17. At the same time, the locking hook 22 at one end of the connecting plate 20 is fixed to the duckbill spring buckle 23, and the top plate 10 can be lifted upward for easy repair. After the repair is completed, the limit blocks 17 on both sides of the top plate 10 are aligned and inserted into the rectangular groove at the top of the conical mixing silo 3. Then, the duckbill spring buckle 23 is pressed to release the locking hook 22 from the connecting plate 20. Under the elastic force of the spring 26, the limit rod 19 is inserted into the through hole of the limit block 17, thereby completing the locking of the top plate 10.
[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A soil fertilizer mixing device, comprising a movable base (1), wherein four sets of columns (2) are mounted on the top of the movable base (1), and a conical mixing hopper (3) is fixedly mounted on the top of the four sets of columns (2), characterized in that: The conical mixing silo (3) has a through hole at the bottom center, and the bottom of the through hole is connected to a discharge pipe (4). A screw conveyor (5) is installed at an angle on one side of the discharge pipe (4). A discharge pipe (6) is connected to the top side of the screw conveyor (5). A rubber hose (16) is connected to the bottom of the discharge pipe (6). A top plate (10) is installed on the top of the conical mixing silo (3) through a locking mechanism. A motor (11) is fixedly installed on the top of the top plate (10). A conveying cylinder (9) is fixedly installed in the center of the conical mixing silo (3). Multiple sets of inlets are provided on the bottom side of the conveying cylinder (9). A screw conveying shaft (8) is installed on the bottom of the conveying cylinder (9) through a center frame (7). The top of the screw conveying shaft (8) passes through the top of the conveying cylinder (9). The output shaft of the motor (11) is connected to the top of the screw conveying shaft (8). The top two sides of the cone-shaped mixing hopper (3) are provided with rectangular grooves, and the top plate (10) is connected to the two sides with limiting blocks (17) that correspond to the rectangular grooves. The locking mechanism includes a connecting plate (20) installed on the side of the conical mixing hopper (3) near the handrail (14). Limiting rods (19) are fixedly installed on one side of both ends of the connecting plate (20). Each limiting rod (19) passes through a fixing plate (18). The fixing plate (18) is fixedly connected to the outside of the conical mixing hopper (3). Each limiting block (17) has a locking hole at one end. Each limiting rod (19) is inserted into the locking hole. Each limiting rod (19) has a limiting ring (21) on its outside. A spring (26) is fitted on the outside of the limiting rod (19). The two ends of the spring (26) abut against the limiting ring (21) and the fixing plate (18) respectively.
2. The soil fertilizer mixer as described in claim 1, characterized in that: A handrail (14) is fixedly installed on one side of the movable base (1), and movable wheels (15) are installed at the four corners of the movable base (1) via shafts.
3. The soil fertilizer mixer as described in claim 1, characterized in that: A duckbill spring hook (23) is fixedly installed on one side of the bottom end of the inner crossbeam of the handrail (14), and a locking hook (22) corresponding to the duckbill spring hook (23) is fixedly installed on one side of the connecting plate (20).
4. The soil fertilizer mixer as described in claim 1, characterized in that: A sliding groove is provided on one side of the feed pipe (4), and a baffle plate (24) is slidably connected inside the sliding groove. A handle (25) is fixedly installed on one side of the baffle plate (24).
5. The soil fertilizer mixer as described in claim 1, characterized in that: The top of the conveying cylinder (9) is lower than the top height of the conical mixing hopper (3).