Magnetic stirring equipment
By using an eccentric sleeve and cantilever crossbar structure in the temperature-sensing support frame of the magnetic stirring device, the problem of beakers being easily tipped over was solved, and the beakers were stably fixed and the magnetic rotor and temperature probe were easily operated, thus improving experimental safety and efficiency.
Patent Information
- Application Number
- CN202520299887.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-25
AI Technical Summary
In biopharmaceutical, cell culture, and biochemistry experiments, beakers on magnetic stirrers are easily tipped over, making operation inconvenient and requiring frequent beaker replacements, which poses safety hazards.
The temperature-sensing support frame adopts an eccentric sleeve structure. By rotating the eccentric sleeve, the top edge of the beaker is pressed and fixed. Combined with the adjustment of the cantilever crossbar and the U-shaped height adjustment block, the beaker is ensured to be stable. The magnetic rotor and temperature probe can be conveniently inserted and fixed through the through groove and the limiting hole.
It effectively prevents beakers from being knocked over during repeated experiments, reduces the difficulty of operation for operators, and improves the safety and efficiency of experiments.
Smart Images
Figure CN223931224U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of magnetic stirring technology, and particularly relates to magnetic stirring equipment, and more particularly to a magnetic stirring equipment. Background Technology
[0002] In biopharmaceutical, cell culture, and biochemical experiments, magnetic stirring is used to meet the high requirements for stirring equipment in the preparation of bioproducts. By optimizing the magnetic stirring system, the performance of the equipment can be improved, enabling precise control in the preparation of bioproducts and improving product quality and production efficiency.
[0003] In related technologies, a magnetic stirrer includes a base, a beaker, and a temperature sensing system. In use, the beaker is placed on the base and heated, the magnetic rotor is placed inside the beaker, and the temperature sensing probe needs to be inserted into the beaker. The heated liquid inside the beaker is stirred and mixed by the rotation of the magnetic rotor.
[0004] However, since the bottom of the beaker needs to be heated, it is placed directly against the base. During the operation, the operator not only needs to put the magnetic rotor into the beaker, but also needs to insert the temperature probe into the beaker. In addition, the beaker needs to be changed frequently during the experiment. During this process, it is common for the operator to knock over the beaker that is not fixed.
[0005] Therefore, how to prevent beakers from being easily tipped over is a technical problem that urgently needs to be solved in this field.
[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0007] This disclosure provides at least one magnetic stirring device to solve the technical problem that beakers are easily tipped over.
[0008] In a first aspect, embodiments of this disclosure provide a magnetic stirring device, comprising: a base suitable for placing a beaker; a temperature-sensing support frame disposed on the top surface of the base; the temperature-sensing support frame includes a cantilevered crossbar, on which a clamping structure is sleeved; wherein the clamping structure rotates to clamp the beaker.
[0009] In one optional embodiment, the clamping structure includes an eccentric sleeve, which is disposed on the cantilever crossbar through an eccentric hole; the eccentric sleeve is made of an elastic material; wherein the eccentric sleeve rotates to change the distance between itself and the top edge of the clamping beaker until the beaker is clamped.
[0010] In one alternative embodiment, a rotating ring is provided at one end of the eccentric sleeve; wherein the rotating ring rotates to drive the convex surface of the eccentric sleeve to press against the top edge of the beaker.
[0011] In one optional embodiment, the eccentric sleeve has a through groove, the opening edge of which is adapted to abut against the top edge of the beaker; and the inner wall of the through groove is concave and adapted to embed a magnetic rotor; wherein the concave surface opens when the opening of the through groove abuts against the top edge of the beaker to release the magnetic rotor.
[0012] In one alternative embodiment, a circular hole is provided in the through groove; wherein the eccentric sleeve is moved on the cantilever crossbar to align the circular hole with a limiting hole on the cantilever crossbar, and the temperature probe is adapted to extend into the beaker through the circular hole and the limiting hole.
[0013] In one alternative embodiment, the temperature-sensing support frame includes a vertical rod, on which a U-shaped height adjustment block is fitted; wherein the U-shaped height adjustment block is adapted to move up or down along the vertical rod.
[0014] In one alternative embodiment, a boss is installed on one side of the U-shaped height adjustment block; the cantilever crossbar is installed on the boss.
[0015] In one optional embodiment, a threaded hole is provided on the U-shaped height adjustment block, and a clamping screw is provided in the threaded hole; wherein the clamping screw rotates to move one end toward the boss, so as to change the opening spacing of the U-shaped height adjustment block.
[0016] Secondly, this disclosure also provides a magnetic stirring device, including: a temperature-sensing support frame disposed on one side of a beaker; the temperature-sensing support frame includes a cantilevered crossbar, and a pressing structure is sleeved on the cantilevered crossbar; the pressing structure includes an eccentric sleeve, the eccentric sleeve being disposed on the cantilevered crossbar through an eccentric hole, and the eccentric sleeve being made of an elastic material; wherein rotating the eccentric sleeve achieves pressing the beaker and releasing a magnetic rotor into the beaker.
[0017] In one optional embodiment, a rotating ring is provided at one end of the eccentric sleeve; a through groove is provided on the eccentric sleeve, the inner wall of the through groove is concave, and the concave surface is suitable for holding a magnetic rotor; wherein as the bottom edge of the through groove presses against the top edge of the beaker, the curvature of the concave surface gradually increases to release the magnetic rotor into the beaker; a circular hole is provided in the through groove; wherein the eccentric sleeve is moved on the cantilever crossbar so that the circular hole is aligned with a limiting hole on the cantilever crossbar, and a temperature probe is adapted to extend into the beaker through the circular hole and the limiting hole.
[0018] The beneficial effects of this utility model are that it provides a magnetic stirring device, which, by setting an eccentric sleeve, can press and fix the top edge of the beaker by rotating the eccentric sleeve during use, reducing the probability of the beaker being overturned due to repeated handling and placement of the magnetic rotor; and solving the technical problem that the beaker is easily overturned during repeated experiments.
[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 A perspective view of the magnetic stirring apparatus provided in the embodiments of this disclosure;
[0023] Figure 2 This is a perspective view of the temperature-sensing support frame and the clamping structure provided in the embodiments of this disclosure;
[0024] Figure 3 This is a schematic diagram of the clamping structure in a non-contact state with the beaker provided in an embodiment of this disclosure;
[0025] Figure 4 This is a schematic diagram of the compression structure and the beaker compression state provided in the embodiments of this disclosure.
[0026] In the picture:
[0027] 1. Base;
[0028] 2. Temperature-sensing support frame; 21. Vertical rod; 22. U-shaped height adjustment block; 23. Boss; 24. Cantilever crossbar; 25. Clamping screw; 26. Limiting hole; 27. Threaded hole;
[0029] 3. Beaker;
[0030] 4. Temperature probe;
[0031] 5. Clamping structure; 51. Eccentric sleeve; 52. Through groove; 53. Round hole; 54. Rotary ring; 55. Eccentric hole; 56. Concave surface;
[0032] 6. Magnetic rotor. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0034] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0035] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0036] The terminology used herein is for describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive, thus specifying the presence of features, steps, operations, elements, and / or components, but not excluding the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0037] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0038] Research has revealed the following drawbacks of existing technologies: In related technologies, magnetic stirrers include a base, a beaker, and a temperature sensing system. During use, the beaker is placed on the base and heated, the magnetic rotor is placed inside the beaker, and the temperature sensing probe needs to be inserted into the beaker. The heated liquid inside the beaker is stirred and mixed by the rotation of the magnetic rotor.
[0039] However, since the bottom of the beaker needs to be heated, it is placed directly against the base. During the operation, the operator not only needs to put the magnetic rotor into the beaker, but also needs to insert the temperature probe into the beaker. In addition, the beaker needs to be changed frequently during the experiment. During this process, it is common for the operator to knock over the beaker that is not fixed.
[0040] Therefore, how to prevent beakers from being easily tipped over is a technical problem that urgently needs to be solved in this field.
[0041] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.
[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0043] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0044] like Figures 1 to 4 As shown, some embodiments provide a magnetic stirring device, including: a base 1, a temperature-sensing support frame 2, and a beaker 3, wherein the base 1 is adapted to place the beaker 3; the temperature-sensing support frame 2 is disposed on the top surface of the base 1; the temperature-sensing support frame 2 is used to place a temperature-sensing probe 4;
[0045] Please continue reading. Figure 1 In addition, the temperature-sensing support frame 2 includes a cantilever crossbar 24, on which a pressing structure 5 is fitted; wherein the pressing structure 5 rotates to press the beaker 3, first the height of the cantilever crossbar 24 is adjusted, and then the distance between it and the beaker 3 is changed by rotating the pressing structure 5 until the top surface of the beaker 3 is pressed by the pressing structure 5.
[0046] Please continue reading. Figure 1 and combined Figure 2The following describes the composition of the pressing structure 5. The pressing structure 5 includes an eccentric sleeve 51, which is set on the cantilever crossbar 24 through an eccentric hole 55. The eccentric sleeve 51 is made of elastic material. The eccentric sleeve 51 rotates to change the distance between itself and the top edge of the pressing beaker 3 until the beaker 3 is pressed.
[0047] Please continue reading. Figure 3 and combined Figure 4 In the initial state, the thin-walled part of the eccentric sleeve 51 faces downward and the thick-walled part faces upward. By rotating the eccentric sleeve 51, the thick-walled part gradually rotates downward, thereby changing the distance between the eccentric sleeve 51 and the top edge of the beaker 3. After rotating to a certain extent, the thick-walled part will squeeze the beaker 3, thus effectively preventing the beaker 3 from being overturned during repeated experiments.
[0048] Please continue reading. Figure 1 and combined Figure 2 To facilitate the rotation of the eccentric sleeve 51, a rotating ring 54 is provided at one end of the eccentric sleeve 51; the rotating ring 54 rotates to drive the convex surface of the eccentric sleeve 51 to press against the top edge of the beaker 3. The rotating ring 54 has high hardness, and by rotating the rotating ring 54, the elastic eccentric sleeve 51 can be rotated on the cantilever crossbar 24.
[0049] Please continue reading. Figure 1 and combined Figure 2 It should be further explained that the eccentric sleeve 51 has a through groove 52, which is located at the thick-walled position of the eccentric sleeve 51. In addition, the opening edge of the through groove 52 is adapted to abut against the top edge of the beaker 3. The inner wall of the through groove 52 is a concave surface 56, which is arc-shaped and used to hold the magnetic rotor 6. The concave surface 56 is adapted to embed the magnetic rotor 6. When the opening of the through groove 52 abuts against the top edge of the beaker 3, the concave surface 56 opens to release the magnetic rotor 6. When the opening of the through groove 52 faces upward, the concave surface 56 holds the magnetic rotor 56. When the through groove 52 faces downward, the opening edge of the through groove 52 will squeeze the beaker 3. The squeezing force will increase the concave curvature of the concave surface 56, that is, deform it to the point that the magnetic rotor 56 can be released.
[0050] Please continue reading. Figure 2 The eccentric sleeve 51 can not only rotate on the cantilever crossbar 24, but also translate along the cantilever crossbar 24. Specifically, a circular hole 53 is provided in the through groove 52. The eccentric sleeve 51 is moved on the cantilever crossbar 24 so that the circular hole 53 is aligned with a limiting hole 26 on the cantilever crossbar 24. The temperature probe 4 is adapted to pass through the circular hole 53 and the limiting hole 26 and extend into the beaker 3. After translating the eccentric sleeve 51 until the circular hole 53 is aligned with one of the limiting holes 26, the temperature probe 4 is inserted into the two holes to fix the temperature probe 4.
[0051] Please continue reading. Figure 1The height of the cantilever crossbar 24 is adjustable to accommodate beakers 3 of different heights. The following explains how to adjust the height. The temperature-sensing support frame 2 includes a vertical rod 21, on which a U-shaped height adjustment block 22 is fitted. The U-shaped height adjustment block 22 is suitable for moving up or down along the vertical rod 21. By changing the size of the opening of the U-shaped height adjustment block 22, the pressure between the inner wall of the U-shaped height adjustment block 22 and the vertical rod 21 can be changed. When the opening of the U-shaped height adjustment block 22 is large, it can slide up or down along the vertical rod 21. When the opening is small, i.e., when the pressure is large, the U-shaped height adjustment block 22 can be fixed at a certain height on the vertical rod 21.
[0052] Please continue reading. Figure 1 and combined Figure 2 Specifically, a boss 23 is installed on one side of the U-shaped height adjustment block 22; a cantilever crossbar 24 is installed on the boss 23. A threaded hole 27 is opened on the U-shaped height adjustment block 22, and a clamping screw 25 is installed in the threaded hole 27; the clamping screw 25 is on the other side of the U-shaped height adjustment block 22 away from the boss 23, such as... Figure 2 As shown, the clamping movement direction of the clamping screw 25 is F1; wherein the clamping screw 25 rotates so that one end moves toward the boss 23 to change the opening spacing of the U-shaped height adjustment block 22. After rotating the clamping screw 25, the opening size of the U-shaped height adjustment block 22 can be changed, thereby changing the squeezing force between the U-shaped height adjustment block 22 and the vertical rod 21.
[0053] like Figures 1 to 4 As shown, some embodiments provide a magnetic stirring device, including: a temperature-sensing support frame 2, which is disposed on one side of a beaker 3; the temperature-sensing support frame 2 includes a cantilever crossbar 24, and a clamping structure 5 is sleeved on the cantilever crossbar 24; firstly, the height of the cantilever crossbar 24 is adjusted, and then the distance between it and the beaker 3 is changed by rotating the clamping structure 5 until the top surface of the beaker 3 is clamped by the clamping structure 5.
[0054] Please continue reading. Figure 3 and combined Figure 4 The following describes the composition of the clamping structure 5. The clamping structure 5 includes an eccentric sleeve 51, which is set on the cantilever crossbar 24 through an eccentric hole 55. The eccentric sleeve 51 is made of elastic material. The eccentric sleeve 51 rotates to change the distance between itself and the top edge of the clamping beaker 3 until the beaker 3 is clamped. In the initial state, the thin-walled part of the eccentric sleeve 51 faces downward and the thick-walled part faces upward. By rotating the eccentric sleeve 51, the thick-walled part gradually rotates downward, thereby changing the distance between the eccentric sleeve 51 and the top edge of the beaker 3. After rotating to a certain extent, the thick-walled part will squeeze the beaker 3, thereby effectively preventing the beaker 3 from being overturned during repeated tests.
[0055] Please continue reading. Figure 1 and combined Figure 2To facilitate the rotation of the eccentric sleeve 51, a swivel ring 54 is provided at one end of the eccentric sleeve 51; the swivel ring 54 rotates to drive the convex surface of the eccentric sleeve 51 to press against the top edge of the beaker 3. The swivel ring 54 has high hardness, such as... Figure 3 The rotation direction of the rotating ring 54 is F2; by rotating the rotating ring 54, the elastic eccentric sleeve 51 can be rotated on the cantilever crossbar 24.
[0056] Please continue reading. Figure 1 and combined Figure 2 It should be further explained that the eccentric sleeve 51 has a through groove 52, which is located at the thick-walled position of the eccentric sleeve 51. Additionally, as... Figure 4 As shown, F3 is the direction of the extrusion force. The opening edge of the through groove 52 is adapted to abut against the top edge of the beaker 3. The inner wall of the through groove 52 is a concave surface 56, which is arc-shaped and used to hold the magnetic rotor 6. The concave surface 56 is adapted to embed the magnetic rotor 6. When the opening of the through groove 52 abuts against the top edge of the beaker 3, the concave surface 56 opens to release the magnetic rotor 6. When the opening of the through groove 52 faces upward, the concave surface 56 holds the magnetic rotor 56. When the through groove 52 faces downward, the opening edge of the through groove 52 will squeeze the beaker 3. The extrusion force will increase the concave curvature of the concave surface 56, that is, deform it to the point that the magnetic rotor 56 can be released.
[0057] Please continue reading. Figure 1 The eccentric sleeve 51 can not only rotate on the cantilever crossbar 24, but also translate along the cantilever crossbar 24. Specifically, a circular hole 53 is provided in the through groove 52. The eccentric sleeve 51 is moved on the cantilever crossbar 24 so that the circular hole 53 is aligned with a limiting hole 26 on the cantilever crossbar 24. The temperature probe 4 is adapted to pass through the circular hole 53 and the limiting hole 26 and extend into the beaker 3. After translating the eccentric sleeve 51 until the circular hole 53 is aligned with one of the limiting holes 26, the temperature probe 4 is inserted into the two holes to fix the temperature probe 4.
[0058] In summary, by setting up the eccentric sleeve 51, the top edge of the beaker 3 can be pressed and fixed by rotating the eccentric sleeve 51 during use, and the magnetic rotor 6 can be placed after being stored. This solves the technical problem that the beaker 3 is easily overturned in repeated experiments, and also avoids the phenomenon of losing the magnetic rotor 6 due to repeated handling and placement.
[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0061] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A magnetic stirring device, characterized in that, include: Base (1), suitable for placing beaker (3); Temperature-sensing support frame (2) is installed on the top surface of base (1); The temperature-sensing support frame (2) includes a cantilevered crossbar (24), and a clamping structure (5) is fitted onto the cantilevered crossbar (24); wherein The clamping structure (5) rotates to clamp the beaker (3).
2. The magnetic stirring device as described in claim 1, characterized in that, The clamping structure (5) includes an eccentric sleeve (51), which is mounted on the cantilever crossbar (24) through an eccentric hole (55); The eccentric sleeve (51) is made of elastic material; wherein The eccentric sleeve (51) rotates to change the distance between itself and the top edge of the pressure beaker (3) until the pressure beaker (3) is tightened.
3. The magnetic stirring device as described in claim 2, characterized in that, A swivel ring (54) is provided at one end of the eccentric sleeve (51); wherein The rotating ring (54) rotates to drive the convex surface of the eccentric sleeve (51) to press against the top edge of the beaker (3).
4. The magnetic stirring device as described in claim 2, characterized in that, The eccentric sleeve (51) has a through groove (52), the opening edge of which is adapted to abut against the top edge of the beaker (3); and The inner wall of the through groove (52) is a concave surface (56) and is suitable for embedding a magnetic rotor (6). in The concave surface (56) is opened by the opening of the through groove (52) abutting against the top edge of the beaker (3) to release the magnetic rotor (6).
5. The magnetic stirring device as described in claim 4, characterized in that, A circular hole (53) is provided inside the through groove (52); wherein Move the eccentric sleeve (51) on the cantilever crossbar (24) so that the round hole (53) is aligned with a limiting hole (26) on the cantilever crossbar (24), and the temperature probe (4) is adapted to extend into the beaker (3) through the round hole (53) and the limiting hole (26).
6. The magnetic stirring device as described in claim 1, characterized in that, The temperature-sensing support frame (2) includes a vertical rod (21), and a U-shaped height adjustment block (22) is sleeved on the vertical rod (21); wherein The U-shaped height adjustment block (22) is adapted to move up or down along the vertical rod (21).
7. The magnetic stirring device as described in claim 6, characterized in that, A boss (23) is installed on one side of the U-shaped height adjustment block (22); The cantilever crossbar (24) is mounted on the boss (23).
8. The magnetic stirring device as described in claim 7, characterized in that, A threaded hole (27) is provided on the U-shaped height adjustment block (22), and a clamping screw (25) is provided in the threaded hole (27); wherein The clamping screw (25) is rotated so that one end moves toward the boss (23) to change the opening spacing of the U-shaped height adjustment block (22).
9. A magnetic stirring device, characterized in that, include: A temperature-sensing support frame (2) is set on one side of the beaker (3); The temperature-sensing support frame (2) includes a cantilever crossbar (24), and a clamping structure (5) is sleeved on the cantilever crossbar (24). The clamping structure (5) includes an eccentric sleeve (51), which is mounted on the cantilever crossbar (24) through an eccentric hole (55). The eccentric sleeve (51) is made of an elastic material. Rotate the eccentric sleeve (51) to press the beaker (3) and release the magnetic rotor (6) into the beaker (3).
10. The magnetic stirring device as described in claim 9, characterized in that, A swivel ring (54) is provided at one end of the eccentric sleeve (51); The eccentric sleeve (51) has a through groove (52), the inner wall of which is a concave surface (56), which is suitable for holding the magnetic rotor (6); wherein As the bottom edge of the through groove (52) presses against the top edge of the beaker (3), the curvature of the concave surface (56) gradually increases to release the magnetic rotor (6) into the beaker (3). A circular hole (53) is provided inside the through groove (52); wherein Move the eccentric sleeve (51) on the cantilever crossbar (24) so that the round hole (53) is aligned with a limiting hole (26) on the cantilever crossbar (24), and the temperature probe (4) is adapted to extend into the beaker (3) through the round hole (53) and the limiting hole (26).