A stirring structure of a magnetic stirrer

Abstract

The utility model discloses a kind of stirring structure of magnetic stirrer, including stirrer and magnet, the outside of stirrer is detachably connected with cap, the outside of cap is fixedly connected with connecting ring, the outside of connecting ring is fixedly connected with snap ring, the outside of cap is fixedly connected with cone one, the inner wall of stirrer is fixedly connected with grommet, one end of stirrer away from the cap is fixedly connected with counterweight, the outside of stirrer is detachably connected with outer ring, one end of counterweight away from the stirrer is fixedly connected with cone two, the inner wall of stirrer is provided with connecting groove. In the utility model, by the modularization design of stirrer and magnet respectively, so that user can be targeted replacement and when facing solution with different corrosion degree to stir, can replace the stirrer that satisfies this solution property to use, save cost, simultaneously increase its sealing effect under the plasticity of snap ring.

Description

Technical Field

[0001] This utility model relates to the technical field of stirring structure of magnetic stirrers, and more specifically, to a stirring structure of a magnetic stirrer. Background Technology

[0002] A magnetic stirrer is a laboratory device driven by a magnetic field. The stir bar is one of the core stirring structures used in conjunction with the stirrer. After the stir bar is placed in the liquid container, it rotates under the action of the magnetic field of the stirrer, realizing the mixing and dissolution of the liquid. It is characterized by its simple operation, easy cleaning, and no sample contamination.

[0003] The stir bar consists of a magnetic core (such as a permanent magnet) and an outer inert material (such as polytetrafluoroethylene). During operation, the magnetic stirrer generates a rotating magnetic field, and the stir bar is driven to rotate synchronously by the magnetic force. Through contact friction with the liquid, it drives the liquid to flow, achieving mixing, stirring, and anti-contamination properties.

[0004] In existing technologies, some stir bar designs are still based on traditional one-piece designs. After prolonged use, the external material of the stir bar will wear down, requiring replacement. Due to the one-piece design, the internal magnetic core is usually discarded along with the stir bar, which is very wasteful of costs. It is impossible to modularize the stir bar to achieve targeted replacement. Modularization not only saves costs and reduces environmental pollution, but also allows a single stir bar to meet the stirring needs of solutions of different densities, thus increasing the application range of the stir bar. In order to solve the above problems, a stirring structure for a magnetic stirrer is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stirring structure for a magnetic stirrer, so as to solve the problem that the stir bar cannot be modularly designed in the prior art to achieve subsequent targeted replacement.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a stirring structure for a magnetic stirrer, comprising...

[0007] A stir bar and a magnet are provided. The stir bar is detachably connected to a cap. A connecting ring is fixedly connected to the outside of the cap. A retaining ring is fixedly connected to the outside of the connecting ring. A cone is fixedly connected to the outside of the cap. A gasket is fixedly connected to the inner wall of the stir bar. A counterweight is fixedly connected to the end of the stir bar away from the cap. An outer ring is detachably connected to the outside of the stir bar.

[0008] The counterweight is fixedly connected to a cone two at the end away from the stirrer. The inner wall of the stirrer has a connecting groove and a retaining groove.

[0009] The inner wall of the stir bar is provided with an installation groove, the inner wall of the outer ring is fixedly connected with a plurality of positioning blocks, the outer side of the stir bar is provided with a plurality of positioning grooves, and the end of the gasket away from the stir bar is in contact with the outside of the magnet.

[0010] The magnet is detachably connected to the inner wall of the stir bar, and the end of the connecting ring away from the cap is in contact with the inner wall of the stir bar.

[0011] The outer part of the retaining ring is engaged with the inner wall of the stir bar, and one end of the cone away from the cap is in contact with the inner wall of the stir bar.

[0012] The end of the second cone away from the counterweight is in contact with the outside of the magnet, and the end of the magnet away from the second cone is in contact with the outside of the first cone.

[0013] The outer side of the connecting ring contacts the inner wall of the connecting groove, and the outer side of the retaining ring is engaged with the inner wall of the retaining groove.

[0014] The outer side of the cone is in contact with the inner wall of the mounting groove, and the end of the positioning block away from the outer ring is engaged with the inner wall of the positioning groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In the above solution, by modularly designing the stir bar and magnet separately, users can make targeted replacements and use stir bar that meets the properties of solutions with different corrosiveness levels, thus saving costs. At the same time, the plasticity of the retaining ring increases its sealing effect. Meanwhile, when stirring solutions of different concentrations, B-type or C-type stir bar is usually used for stirring. By making the outer ring detachable, it can be disassembled and installed to meet the subsequent stirring needs when stirring solutions with higher or lower concentrations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cone structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the gasket structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer ring structure of this utility model;

[0021] Figure 5This is a schematic diagram of the retaining ring structure of this utility model.

[0022] [Figure Labels]

[0023] 1. Stirring bar; 2. Cap; 3. Connecting ring; 4. Snap ring; 5. Cone one; 6. Magnet; 7. Counterweight; 8. Cone two; 9. Connecting groove; 10. Snap groove; 11. Mounting groove; 12. Washer ring; 13. Positioning groove; 14. Outer ring; 15. Positioning block. Detailed Implementation

[0024] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a stirring structure for a magnetic stirrer, including a stir bar 1 and a magnet 6. A cap 2 is detachably connected to the outside of the stir bar 1. A connecting ring 3 is fixedly connected to the outside of the cap 2. A retaining ring 4 is fixedly connected to the outside of the connecting ring 3. A cone 5 is fixedly connected to the outside of the cap 2. A pad ring 12 is fixedly connected to the inner wall of the stir bar 1. A counterweight 7 is fixedly connected to the end of the stir bar 1 away from the cap 2. An outer ring 14 is detachably connected to the outside of the stir bar 1. The magnet 6 is detachably connected to the inner wall of the stir bar 1. The end of the connecting ring 3 away from the cap 2 is in contact with the inner wall of the stir bar 1. The outer part of the retaining ring 4 is engaged with the inner wall of the stir bar 1. The end of the cone 5 away from the cap 2 is in contact with the inner wall of the stir bar 1.

[0026] The modular design of the stir bar 1 and magnet 6 allows users to perform targeted operations. When installing the cap 2, the retaining ring 4 in the connecting ring 3 improves the sealing and locking effect based on its plasticity, preventing the solution from entering the interior of the stir bar 1 during stirring. At the same time, since the structures of one end of the stir bar 1 are different from those of the other end, the weight of the two ends of the stir bar 1 can be balanced by the counterweight 7. Meanwhile, the pad ring 12 ensures the stability of the magnet 6 during the rotation of the stir bar 1, preventing the magnet 6 from shaking inside. The outer ring 14 can be disassembled and installed to achieve stirring according to the density of the solution.

[0027] Example 2: Based on Example 1, in order to facilitate the disassembly of the magnet 6, a cone 8 is fixedly connected to the end of the counterweight 7 away from the stir bar 1. A connecting groove 9 is provided on the inner wall of the stir bar 1, and a retaining groove 10 is provided on the inner wall of the stir bar 1. The end of the cone 8 away from the counterweight 7 is in contact with the outside of the magnet 6, and the end of the magnet 6 away from the cone 8 is in contact with the outside of the cone 5. The outside of the connecting ring 3 is in contact with the inner wall of the connecting groove 9, and the outside of the retaining ring 4 is engaged with the inner wall of the retaining groove 10.

[0028] Due to uneven bottoms of some containers and prolonged rotation, the stir bar 1 wears down, requiring replacement. Since the stir bar 1 and magnet 6 are usually integrated, discarding the entire stir bar 1 along with the internal magnet 6 is wasteful. By modularizing the stir bar 1 and magnet 6, the cap 2 is removed from the stir bar 1, and the magnet 6 is then placed inside. This not only saves costs but also allows for targeted stirring configurations. For example, when mixing solutions with different corrosive properties, the magnet 6 can be installed inside the stir bar 1 to meet the requirements of the solution. Furthermore, the internal magnet 6 can be replaced with a strong or weak magnetic material, allowing users to customize the stirring based on the solution's requirements. When installing the cap 2, the connecting ring 3 is connected inside the connecting groove 9, along with a retaining ring 4. The retaining ring 4's malleability allows it to lock into the groove 10, creating a seal.

[0029] Example 3: Based on Example 2, in order to meet the requirements of stirring solutions of different densities, the inner wall of the stir bar 1 is provided with a mounting groove 11, the inner wall of the outer ring 14 is fixedly connected with multiple positioning blocks 15, the outer side of the stir bar 1 is provided with multiple positioning grooves 13, the end of the pad ring 12 away from the stir bar 1 is in contact with the outside of the magnet 6, the outside of the cone 5 is in contact with the inner wall of the mounting groove 11, and the end of the positioning block 15 away from the outer ring 14 is engaged with the inner wall of the positioning groove 13.

[0030] When stirring solutions of different densities, it is necessary to replace the stir bar 1 with one suitable for the required solution density. For example, type B stir bar 1 is suitable for solutions with higher concentrations, while type C is the opposite. The requirements for different solution concentrations can be met by disassembling and installing the outer ring 14. The positioning block 15 in the outer ring 14 is elastic. During installation, the positioning block 15 can be locked inside the positioning groove 13 in the stir bar 1. During disassembly, the positioning block 15 will be released from the positioning groove 13 by pulling the outer ring 14 due to its elasticity. This satisfies the requirement of stirring solutions of different densities.

[0031] The working process of this utility model is as follows:

[0032] Firstly, in daily use, the stir bar 1 rotates at the bottom of the container to mix the solution. However, due to uneven bottoms in some containers and prolonged rotation, the stir bar 1 wears down, requiring replacement. Since the stir bar 1 and magnet 6 are usually integrated, discarding the entire stir bar 1 along with the internal magnet 6 is wasteful. By modularizing the stir bar 1 and magnet 6, the cap 2 is removed from the stir bar 1, and then the magnet 6 is installed inside. This not only saves costs but also allows for targeted mixing configurations. For example, when mixing solutions with different corrosive properties, the magnet 6 can be installed inside the stir bar 1 to suit the specific solution properties. Furthermore, the internal magnet 6 can be replaced with a material that provides strong or weak magnetic fields, allowing users to customize the mixing process according to their needs. The solution is modified to meet specific stirring requirements by replacing the component with one that meets those requirements. When installing the cap 2, the connecting ring 3 is connected inside the connecting groove 9, and a retaining ring 4 is attached. Due to the plasticity of the retaining ring 4, it will lock into the groove 10, creating a seal. Simultaneously, when stirring solutions of different densities, a stirrer 1 suitable for that solution density is required. For example, type B stirrer 1 is suitable for solutions with higher concentrations, while type C is the opposite. Different solution concentrations can be met by disassembling and installing the outer ring 14. The positioning block 15 in the outer ring 14 is elastic. During installation, the positioning block 15 can be locked inside the positioning groove 13 of the stirrer 1. During disassembly, by pulling the outer ring 14, the positioning block 15 will leave the positioning groove 13 due to its elasticity, thus satisfying the stirring requirements for solutions of different densities.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stirring structure for a magnetic stirrer, characterized in that, Includes a stir bar (1) and a magnet (6). The stir bar (1) is detachably connected to a cap (2). The cap (2) is fixedly connected to a connecting ring (3). The connecting ring (3) is fixedly connected to a retaining ring (4). The cap (2) is fixedly connected to a cone (5). The inner wall of the stir bar (1) is fixedly connected to a pad ring (12). The end of the stir bar (1) away from the cap (2) is fixedly connected to a counterweight (7). The stir bar (1) is detachably connected to an outer ring (14).

2. The stirring structure of a magnetic stirrer according to claim 1, characterized in that, The counterweight (7) is fixedly connected to a cone (8) at one end away from the stirrer (1). The inner wall of the stirrer (1) is provided with a connecting groove (9) and a slot (10).

3. The stirring structure of a magnetic stirrer according to claim 2, characterized in that, The inner wall of the stir bar (1) is provided with an installation groove (11), and the inner wall of the outer ring (14) is fixedly connected with a plurality of positioning blocks (15). The outer side of the stir bar (1) is provided with a plurality of positioning grooves (13), and the end of the pad ring (12) away from the stir bar (1) is in contact with the outside of the magnet (6).

4. The stirring structure of a magnetic stirrer according to claim 1, characterized in that, The magnet (6) is detachably connected to the inner wall of the stir bar (1), and the end of the connecting ring (3) away from the cap (2) is in contact with the inner wall of the stir bar (1).

5. The stirring structure of a magnetic stirrer according to claim 1, characterized in that, The outer part of the retaining ring (4) is engaged with the inner wall of the stirrer (1), and the end of the cone (5) away from the cap (2) is in contact with the inner wall of the stirrer (1).

6. The stirring structure of a magnetic stirrer according to claim 2, characterized in that, The end of the second cone (8) away from the counterweight (7) is in contact with the outside of the magnet (6), and the end of the magnet (6) away from the second cone (8) is in contact with the outside of the first cone (5).

7. The stirring structure of a magnetic stirrer according to claim 2, characterized in that, The outer side of the connecting ring (3) is in contact with the inner wall of the connecting groove (9), and the outer side of the retaining ring (4) is engaged with the inner wall of the retaining groove (10).

8. The stirring structure of a magnetic stirrer according to claim 3, characterized in that, The outer side of the cone (5) is in contact with the inner wall of the mounting groove (11), and the end of the positioning block (15) away from the outer ring (14) is engaged with the inner wall of the positioning groove (13).

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