A fertilizer mixing device with replaceable agitator
By introducing a main limiting post, side limiting posts, and locking cavity into the fertilizer mixing device, and using screws to fix the mounting ring and mixing blades, the problem of time-consuming replacement of the mixing blades is solved, achieving rapid disassembly and efficient replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU FENGCAI SLOW RELEASE FERTILIZER CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-30
AI Technical Summary
Replacing the mixing blades in existing fertilizer mixing devices is time-consuming, requiring each blade to be tightened or loosened individually, which is inconvenient.
The design incorporates a main limiting post, side limiting posts, and a locking cavity. The mounting ring and stirring blade are fixed with screws, simplifying the replacement process.
It enables quick disassembly and assembly of the stirring blades, improving replacement efficiency and simplifying the operation process.
Smart Images

Figure CN224422694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fertilizer mixing devices, and in particular to a fertilizer mixing device with replaceable stirring paddles. Background Technology
[0002] A fertilizer mixing device is a mechanical device used to uniformly mix different types or components of fertilizer together in a certain proportion. It is widely used in fertilizer production, agricultural planting, horticulture and other fields.
[0003] The mixing blades on fertilizer mixing devices are often fixed to the main shaft by a large number of bolts. When replacing the mixing blades, each bolt needs to be tightened or loosened one by one, which is time-consuming and inconvenient for users to replace the mixing blades. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fertilizer mixing device with replaceable stirring paddles.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fertilizer mixing device with replaceable stirring paddle includes a mixing device body. A main shaft is rotatably mounted inside the mixing device body. Stirring blades are mounted on the main shaft via mounting rings. Fixing rings are fixedly mounted on the main shaft on both the upper and lower sides of the mounting rings. Multiple connecting posts are fixedly mounted on the main shaft between the two fixing rings. Multiple locking posts are fixedly mounted on both sides of each connecting post. The mounting rings are respectively provided with recesses and locking cavities corresponding to the connecting posts and locking posts. A top plate for locking the mounting rings is mounted on the fixing rings.
[0007] In addition, a preferred structure is that a main limiting post is fixedly and vertically arranged at the bottom of the top plate, and side limiting posts are fixedly arranged on both sides of the main limiting post on the top plate.
[0008] Furthermore, in a preferred configuration, the top plate on the fixing ring is provided with a top cavity, and the top cavity is provided with a main limiting cavity and a side limiting cavity respectively, corresponding to the main limiting post and the side limiting post.
[0009] Furthermore, in a preferred configuration, the corresponding side limiting posts on the fixing ring and the locking post are adapted to have side limiting cavities, and the corresponding side limiting posts on the mounting ring are adapted to have through locking cavities.
[0010] Furthermore, in a preferred configuration, all the main limiting cavities pass through the connecting post, and each main limiting cavity has a through cavity at its bottom.
[0011] In addition, a preferred structure is that a suitable screw is inserted into the cavity, and the main limiting post has a screw groove, and the screw groove is adapted to the screw.
[0012] The beneficial effects of this utility model are as follows: the rotation of the main shaft and stirring blades in the mixing device body can realize the mixing of fertilizer. The mutual locking between the secondary limiting post, the secondary limiting cavity, and the locking cavity, and the locking of the main limiting post with screws, can realize the fixed installation of the mounting ring and the stirring blades. This method of disassembling and assembling the stirring blades is simple and quick, and it is convenient for users to replace the stirring blades. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the internal structure of a fertilizer mixing device with a replaceable stirring paddle proposed in this utility model.
[0014] Figure 2 This is a schematic diagram of the structure of the main shaft, fixing ring, mounting ring and top plate proposed in this utility model;
[0015] Figure 3 for Figure 2 A schematic diagram of the exploded structure in the image;
[0016] Figure 4 for Figure 2 A schematic diagram of the structure after the mounting ring and top plate are hidden;
[0017] Figure 5 for Figure 4 Internal structure diagram;
[0018] Figure 6 This is a schematic diagram of the mounting ring proposed in this utility model;
[0019] Figure 7 This is a schematic diagram of the top plate structure proposed in this utility model.
[0020] In the figure: 1 Mixing device body, 11 Main shaft, 2 Fixing ring, 21 Top cavity, 22 Connecting column, 221 Main limiting cavity, 222 Through cavity, 23 Clamping column, 231 Side limiting cavity, 3 Mounting ring, 31 Stirring blade, 32 Concave cavity, 33 Clamping cavity, 34 Locking cavity, 4 Top plate, 41 Main limiting column, 411 Threaded groove, 42 Side limiting column, 5 Screw. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-7A fertilizer mixing device with replaceable agitator includes a mixing device body 1. A main shaft 11 is rotatably mounted inside the mixing device body 1. An agitator blade 31 is mounted on the main shaft 11 via a mounting ring 3. Fixing rings 2 are fixedly mounted on the main shaft 11 on both the upper and lower sides of the mounting rings 3. Multiple connecting posts 22 are fixedly mounted on the main shaft 11 between the two fixing rings 2. Multiple locking posts 23 are fixedly mounted on both sides of each connecting post 22. The mounting rings 3 have corresponding recesses 32 and locking cavities 33, respectively adapted to fit the connecting posts 22 and locking posts 23. A top plate 4 for locking the mounting rings 3 is mounted on the fixing rings 2.
[0023] The top plate 4 has a main limiting post 41 fixed vertically at its bottom, and side limiting posts 42 are fixedly installed on both sides of the main limiting post 41 on the top plate 4. The fixing ring 2 is provided with a top cavity 21 corresponding to the top plate 4, and the top cavity 21 is provided with a main limiting cavity 221 and a side limiting cavity 231 respectively corresponding to the main limiting post 41 and the side limiting post 42.
[0024] The fixing ring 2 and the locking post 23 each have a corresponding side limiting post 42 with a side limiting cavity 231, and the mounting ring 3 has a corresponding side limiting post 42 with a through locking cavity 34. The locking cavities 34 all pass through the locking cavity 33, which allows the side limiting post 42 to be stably locked in the side limiting cavity 231 and the locking cavity 34.
[0025] The main limiting cavities 221 all pass through the connecting posts 22, and each main limiting cavity 221 has a through cavity 222 at its bottom. A suitable screw 5 is inserted into the through cavity 222, and the main limiting posts 41 have threaded grooves 411 that are adapted to the screws 5. Through the adapted arrangement of the screws 5, through holes 222, and threaded grooves 411, the main limiting posts 41 can be fixed, thereby achieving the locking and fixing of the top plate 4 and the secondary limiting posts 42.
[0026] In this embodiment, the mixing of fertilizer can be achieved by rotating the stirring blade 31 driven by the main shaft 11. This is existing technology and is not related to the technical problem of easy replacement of stirring blades that needs to be solved in this technical solution. Therefore, it will not be described in detail in this technical solution.
[0027] Furthermore, when the user needs to install the stirring blade 31, simply assemble the two mounting rings 3 between the two fixing rings 2 on both sides, ensuring that the connecting post 22 and the locking post 23 are properly engaged in the recessed cavity 32 and the locking cavity 33. At this time, the locking cavity 34 on the mounting ring 3 is properly aligned with the side limiting cavity 231.
[0028] The user then simply assembles the top plate 4 into the top cavity 21. At this time, the side limiting posts 42 on the top plate 4 are all fitted into the locking cavity 34 and the side limiting cavity 231 to lock the mounting ring 3. The main limiting posts 41 on the top plate 4 are all fitted into the main limiting cavity 221. The user then simply passes the screw 5 through the through cavity 222 on the lower fixing ring 2 and screws it into the screw groove 411. This locks and fixes the main limiting posts 41, the top plate 4, and the secondary limiting posts 42, thereby achieving the fixed installation of the mounting rings 3 and the stirring blades 31 on both sides.
[0029] Furthermore, when the user needs to disassemble the stirring blade 31, simply rotate the screw 5 to remove it, and then pull the top plate 4 upwards to disassemble the mounting ring 3 and the stirring blade 31.
[0030] This method of installing the agitator blades 31 does not require the use of a large number of bolts. Each set of agitator blades 31 only requires two screws 5 during installation, which improves the user's assembly speed.
[0031] In this invention, the fertilizer can be mixed by rotating the main shaft 11 and the stirring blade 31 inside the mixing device body 1. The mounting ring 3 and the stirring blade 31 can be fixedly installed by interlocking the secondary limiting post 42, the secondary limiting cavity 231, and the locking cavity 34, and by locking the main limiting post 41 with screws 5. This method of disassembling and assembling the stirring blade 31 is simple and quick, and makes it easy for users to replace the stirring blade 31.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fertilizer mixing device with replaceable stirring paddle, comprising a mixing device body (1), characterized in that, The mixing device body (1) is internally rotatably equipped with a main shaft (11), and a stirring blade (31) is mounted on the main shaft (11) via a mounting ring (3). Fixing rings (2) are fixedly installed on the main shaft (11) on both the upper and lower sides of the mounting ring (3). Multiple connecting posts (22) are fixedly installed on the main shaft (11) between the two fixing rings (2). Multiple locking posts (23) are fixedly installed on both sides of the connecting posts (22). The mounting ring (3) is provided with a cavity (32) and a locking cavity (33) respectively to match the connecting posts (22) and locking posts (23). The fixing ring (2) is equipped with a top plate (4) for locking the mounting ring (3).
2. The fertilizer mixing device with replaceable stirring paddle according to claim 1, characterized in that, The bottom of the top plate (4) is fixedly and vertically provided with a main limiting post (41), and side limiting posts (42) are fixedly provided on both sides of the main limiting post (41) on the top plate (4).
3. A fertilizer mixing device with a replaceable stirring paddle according to claim 2, characterized in that, The fixed ring (2) is adapted to have a top cavity (21) on the top plate (4), and the top cavity (21) is adapted to have a main limiting cavity (221) and a side limiting cavity (231) respectively on the main limiting post (41) and the side limiting post (42).
4. A fertilizer mixing device with a replaceable stirring paddle according to claim 3, characterized in that, The fixed ring (2) and the corresponding side limiting post (42) on the locking post (23) are adapted to have a side limiting cavity (231), and the mounting ring (3) is adapted to have a through locking cavity (34) on the corresponding side limiting post (42).
5. A fertilizer mixing device with a replaceable stirring paddle according to claim 3, characterized in that, The main limiting cavities (221) all pass through the connecting post (22), and the bottom of each main limiting cavity (221) is provided with a through cavity (222).
6. A fertilizer mixing device with a replaceable stirring paddle according to claim 5, characterized in that, The cavity (222) is fitted with a suitable screw (5), and the main limiting post (41) is provided with a screw groove (411), and the screw groove (411) is adapted to the screw (5).