Stirrer structure for magnetic stirrer
By introducing cylindrical floats and a stirring column structure into the stir bar, buoyancy is used to reduce frictional resistance, enabling synchronous rotation of the stir bar and improving the stirring efficiency and effect of the magnetic stirrer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANYCHU ELECTRONIC MATERIALS (NINGBO) CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-15
Smart Images

Figure CN224236660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic stirrer technology, and in particular to a stirrer structure for a magnetic stirrer. Background Technology
[0002] A stir bar needs to be placed in the container of a magnetic stirrer. The magnetism of the stir bar allows it to rotate in the magnetic field, similar to the function of a stirring rod, so that the entire solution is mixed evenly.
[0003] A magnetic stirrer works by utilizing the principle that like poles repel and unlike poles attract. The magnetic field generated by the base of the magnetic stirrer drives a magnetic stir bar placed in a container to rotate in a circular motion, thereby stirring the liquid in the container.
[0004] Existing stir bar structures are mostly smooth rod-shaped structures that rotate at the bottom of the container to mix the surrounding solution. However, due to their small diameter and smooth surface, the stirring efficiency is not high and needs to be improved. Utility Model Content
[0005] The purpose of this invention is to provide a stirring substructure for a magnetic stirrer, which optimizes the existing structure and improves stirring efficiency.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A stirring substructure for a magnetic stirrer includes: a permanent magnet and a stirring column. The permanent magnet is a horizontally placed rod-shaped structure. The stirring column is spaced above the permanent magnet along its axial direction. The stirring column includes a cylindrical float and a first outer shell. The first outer shell wraps around the outer circle and top surface of the cylindrical float. The surface of the permanent magnet is provided with a second outer shell connected to the first outer shell.
[0008] The cylindrical float is made of foamed plastic.
[0009] The first outer shell and the second outer shell adopt an integrated structure.
[0010] The cylindrical float has a connecting part at its bottom that contacts the top surface of the permanent magnet.
[0011] The connecting part is made of adhesive or double-sided tape.
[0012] The diameter of the stirring column is smaller than the diameter of the permanent magnet.
[0013] The beneficial effects of this utility model are as follows: A stirring substructure for a magnetic stirrer is specially designed with a stirring column and a cylindrical float inside the stirring column. The buoyancy ensures that the stirring column points upward in the solution. During the process of the permanent magnet rotating in a circular motion to stir the solution, it drives multiple stirring columns to rotate synchronously, assisting in stirring and greatly improving the efficiency of the stirring work. In addition, the buoyancy of the cylindrical float helps to reduce the contact friction between the permanent magnet and the bottom of the container, reducing the rotational resistance of the permanent magnet, thereby improving the rotational speed and stirring effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 yes Figure 1 A sectional view along the AA direction. Detailed Implementation
[0016] The following is combined Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.
[0017] like Figure 1 The magnetic stirrer shown includes a stirring substructure: a permanent magnet 1 and a stirring column 6. The permanent magnet 1 adopts a horizontally placed rod-shaped structure. The permanent magnet 1 is placed in the container of the magnetic stirrer, and the solution in the container is stirred by the circumferential rotation of the permanent magnet 1.
[0018] The stirring columns 6 are arranged at intervals above the permanent magnet 1 along the axial direction of the permanent magnet 1. In this embodiment, four stirring columns 6 are sampled. During the process of the permanent magnet 1 rotating in a circular motion to stir the solution, the four stirring columns 6 are driven to rotate synchronously to assist in stirring and improve the efficiency of the stirring work.
[0019] like Figure 2 As shown, the diameter of the stirring column 6 is smaller than the diameter of the permanent magnet 1. The small diameter of the stirring column 6 makes assembly convenient.
[0020] In this embodiment, the stirring column 6 includes a cylindrical float 4 and a first outer shell 3. The first outer shell 3 wraps around the outer circle and top surface of the cylindrical float 4, and protects the cylindrical float 4 by the first outer shell 3 to prevent the cylindrical float 4 from contacting the solution in the container.
[0021] like Figure 1 As shown, the cylindrical float 4 is made of foamed plastic. The foamed plastic column is lightweight, which makes the stirring column 6 buoyant in the solution. The buoyancy of the cylindrical float 4 helps to reduce the contact friction between the permanent magnet 1 and the bottom of the container, reduce the rotational friction resistance of the permanent magnet 1, and thus improve the rotational speed and stirring effect.
[0022] In addition, with the help of the buoyancy of the cylindrical float 4, it can be ensured that the stirring column 6 keeps pointing upward in the solution. During the process of the permanent magnet 1 rotating in a circle to stir the solution, it drives multiple stirring columns 6 to rotate synchronously, stirring the solution above the permanent magnet 1 and improving the stirring effect.
[0023] A second outer shell 2, connected to the first outer shell 3, is disposed on the surface of the permanent magnet 1. In this embodiment, the first outer shell 3 and the second outer shell 2 adopt an integrated structure, which provides good waterproof performance. In addition, the first outer shell 3 and the second outer shell 2 can be made of wear-resistant and corrosion-resistant plastic material, such as polytetrafluoroethylene, and integrally molded to improve structural stability.
[0024] A connecting part 5 is provided at the bottom of the cylindrical float 4 to contact the top surface of the permanent magnet 1 for fixing the cylindrical float 4. The connecting part 5 is made of adhesive or double-sided tape for easy construction. After the cylindrical float 4 is fixed to the top surface of the permanent magnet 1 by the connecting part 5, it is placed into the mold together to form the first outer shell 3 and the second outer shell 2, thereby improving the structural stability.
[0025] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A stirring substructure for a magnetic stirrer, characterized in that, include: The permanent magnet and the stirring column are provided. The permanent magnet adopts a horizontally placed rod-shaped structure. The stirring column is arranged at intervals above the permanent magnet along the axial direction of the permanent magnet. The stirring column includes a cylindrical float and a first outer shell. The first outer shell wraps around the outer circle and top surface of the cylindrical float. The surface of the permanent magnet is provided with a second outer shell connected to the first outer shell.
2. The stirring substructure for a magnetic stirrer according to claim 1, characterized in that, The cylindrical float is made of foamed plastic.
3. The stirring substructure for a magnetic stirrer according to claim 1, characterized in that, The first outer shell and the second outer shell adopt an integrated structure.
4. The stirring substructure for a magnetic stirrer according to claim 1, characterized in that, The bottom of the cylindrical float is provided with a connecting part that contacts the top surface of the permanent magnet.
5. The stirring substructure for a magnetic stirrer according to claim 4, characterized in that, The connecting parts are made of adhesive or double-sided tape.
6. The stirring substructure for a magnetic stirrer according to claim 1, characterized in that, The diameter of the stirring column is smaller than the diameter of the permanent magnet.