A new magnetic stirrer
By designing a movable heating ring and a permanent magnet-driven stir bar in the magnetic stirrer, the problems of uneven heating and mixing are solved, achieving uniform heating and efficient mixing, and enhancing the operational reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN WEILANG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-09
Smart Images

Figure CN224332006U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of magnetic stirrer technology, specifically a novel magnetic stirrer. Background Technology
[0002] Magnetic stirrers are common laboratory equipment used to mix or stir liquid samples, and are widely used in fields such as chemistry, biology, and medicine. Their core principle is to drive a stir bar to rotate within a container through magnetic coupling, thereby achieving non-contact stirring.
[0003] In the prior art, when magnetic stirrers are used to stir and mix the liquid inside, they generally need to heat the inside of the tall reactor to ensure the dissolution and diffusion of the liquid. However, existing heating devices are generally fixed on the outside of the tall reactor and cannot be moved. This leads to local overheating when the heating device applies heat to the inside, resulting in uneven mixing of the liquid materials. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides a novel magnetic stirrer to solve the problem of uneven heating and uneven material mixing caused by the heating device of existing magnetic stirrers being fixed to the outside of a tall reactor.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a novel magnetic stirrer, including a tall reactor; a set of support columns are fixedly connected to the bottom end of the tall reactor; a feed inlet is opened at the top end of the tall reactor; a discharge pipe is fixedly connected to the bottom end of the tall reactor; a set of first motors are fixedly connected to the bottom end of the tall reactor; a rotating shaft is fixedly connected to the output end of each set of first motors; a permanent magnet is fixedly connected to one end of each set of rotating shafts; the permanent magnets penetrate the tall reactor; a set of magnetic stir bar is provided inside the tall reactor; the magnetic stir bar is rotatably connected to the inside of the tall reactor; the magnetic stir bar is set on the permanent magnet; a heating ring is provided on the outer circular wall of the tall reactor; a power assembly is provided on one side of the tall reactor; the power assembly is used to drive the movement of the heating ring.
[0006] Preferably, the power assembly includes a U-shaped frame and a power unit; the U-shaped frame is fixedly connected to one side of the tall reactor; a first sliding groove is provided on one side of the U-shaped frame; a first slider is slidably connected in the first sliding groove; the first slider is fixedly connected to one side of the heating ring; the heating ring is slidably connected to the outer circular wall of the tall reactor.
[0007] Preferably, the power unit includes a reversible motor; the reversible motor is fixed to the top of the U-shaped frame; the output end of the reversible motor is provided with a first lead screw; one end of the first lead screw passes through the U-shaped frame and is rotatably connected in the first slide groove; the first slider is connected to the first lead screw through a lead screw and nut pair.
[0008] Preferably, a hollow column is slidably connected inside the discharge pipe; a first connecting plate is provided inside the tall reactor; a pair of fixed rods are fixedly connected inside the tall reactor; each pair of fixed rods is fixedly connected to the bottom end of the first connecting plate; a pair of sliding rods are fixedly connected to the bottom end of the first connecting plate; the hollow column is slidably connected to the sliding rods; a set of first connecting columns is fixedly connected to the outer circular wall of the hollow column; a spring-loaded telescopic rod is fixedly connected to the bottom end of each set of first connecting columns; a transmission component is provided on the outer circular wall of the tall reactor; the transmission component is used to drive the sliding of the hollow column.
[0009] Preferably, the transmission component includes a connecting ring; the connecting ring is slidably connected to the outer circular wall of the high-cylinder reactor; a set of supporting columns are each slidably connected to a ring on their outer circular wall; a set of first connecting columns are respectively fixed to the outer circular wall of the ring; a set of first connecting rods are fixedly connected to the bottom end of the connecting ring; a set of first connecting rods are respectively fixedly connected to the top end of the set of rings.
[0010] Preferably, a third motor is fixedly connected to the top of the tall reactor; the output end of the third motor is provided with a first rotating rod; one end of the first rotating rod extends into the interior of the tall reactor and is fixedly connected with a set of stirring blades.
[0011] Preferably, a sealing plate is provided inside the feed inlet.
[0012] Preferably, each of the support columns is provided with an anti-corrosion rubber pad at its bottom.
[0013] The advantages of this utility model's technical solution, which differs from existing technologies, are as follows:
[0014] 1. The novel magnetic stirrer of this utility model is provided by setting up a tall reactor. A set of support columns can support the tall reactor. The feed port allows the operator to easily put the materials to be mixed into the tall reactor. The first motor and permanent magnet drive the magnetic stir bar to mix the materials. The heating ring can heat the inside of the tall reactor from the outside, increasing the mixing efficiency of the equipment. The power component can drive the heating ring to move on the outer wall of the tall reactor and adjust the heating ring to a suitable heating position.
[0015] 2. The novel magnetic stirrer described in this utility model, by setting a hollow column inside the discharge pipe, helps to discharge the material that has been mixed inside the tall reactor. The hollow column, which is slidably connected to the first sliding rod, will always keep in contact with the first connecting plate due to the elastic telescopic rod, thus sealing the hollow column and preventing the mixed liquid material from being discharged from the hollow column. After the internal liquid is mixed, the hollow column can be moved downward by the transmission component, so that the hollow column is no longer in contact with the first connecting plate, and the liquid will be discharged from the tall reactor by itself. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is the front view of this utility model;
[0019] Figure 3 This is a side sectional view of the present invention;
[0020] Figure 4 yes Figure 3 Enlarged view of A in the middle;
[0021] Figure 5 yes Figure 3 Enlarged view of B in the middle;
[0022] In the diagram: 1. High-cylinder reactor; 2. Support column; 3. Feed inlet; 4. Discharge pipe; 5. First motor; 6. Rotating shaft; 7. Permanent magnet; 8. Magnetic stir bar; 9. Heating ring; 10. U-shaped frame; 11. First chute; 12. First slider; 13. Reversible motor; 14. First lead screw; 15. Hollow column; 16. Fixed rod; 17. Elastic telescopic rod; 18. Sliding rod; 19. Connecting ring; 20. Circular ring; 21. First connecting column; 22. First connecting rod; 23. Third motor; 24. First rotating rod; 25. Stirring blade; 26. Sealing plate; 27. First connecting plate. Detailed Implementation
[0023] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.
[0024] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0025] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.
[0026] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0027] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0028] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0029] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0030] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0031] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0032] like Figures 1 to 5 As shown in the figure, a novel magnetic stirrer according to an embodiment of this utility model includes a set of support columns 2 fixedly connected to the bottom end of a tall reactor 1; a feed inlet 3 opened at the top end of the tall reactor 1; a discharge pipe 4 fixedly connected to the bottom end of the tall reactor 1; a set of first motors 5 fixedly connected to the bottom end of the tall reactor 1; a rotating shaft 6 fixedly connected to the output end of each set of first motors 5; a permanent magnet 7 fixedly connected to one end of each set of rotating shafts 6; each set of permanent magnets 7 penetrating the tall reactor 1; a set of magnetic stirrers 8 provided inside the tall reactor 1; each set of magnetic stirrers 8 rotatably connected inside the tall reactor 1; each set of magnetic stirrers 8 being mounted on the permanent magnets 7; and a set of magnetic stirrers 8 on the outside of the tall reactor 1. A heating ring 9 is provided on the circular wall; a power unit is provided on one side of the tall reactor 1; the power unit is used to drive the movement of the heating ring 9. During operation, the tall reactor 1 is provided, and a set of support columns 2 can support the tall reactor 1. The feed port 3 allows the staff to put the materials to be mixed into the tall reactor 1. The first motor 5 and the permanent magnet 7 drive the magnetic stir bar 8 to mix the materials. The heating ring 9 can heat the inside of the tall reactor 1 from the outside, increasing the mixing efficiency of the equipment. The power unit can drive the heating ring 9 to move on the outer circular wall of the tall reactor 1 and adjust the heating ring 9 to a suitable heating position.
[0033] The power assembly includes a U-shaped frame 10 and a power unit; the U-shaped frame 10 is fixedly connected to one side of the tall reactor 1; a first groove 11 is opened on one side of the U-shaped frame 10; a first slider 12 is slidably connected in the first groove 11; the first slider 12 is fixedly connected to one side of the heating ring 9; the heating ring 9 is slidably connected to the outer circular wall of the tall reactor 1. During operation, by setting the U-shaped frame 10 on one side of the tall reactor 1, opening the first groove 11 on one side of the U-shaped frame 10, and setting the first slider 12 in the first groove 11, when it is necessary to adjust the position of the heating ring 9, the power unit can drive the heating ring 9 to move in the first groove 11 to complete the position adjustment of the heating ring 9.
[0034] The power unit includes a reversible motor 13; the reversible motor 13 is fixed to the top of the U-shaped frame 10; the output end of the reversible motor 13 is provided with a first lead screw 14; one end of the first lead screw 14 passes through the U-shaped frame 10 and is rotatably connected in the first slide groove 11; the first slider 12 is connected to the first lead screw 14 through a lead screw nut pair. When working, by fixing the reversible motor 13 to the top of the U-shaped frame 10 and providing the first lead screw 14 at the output end of the reversible motor 13, when the operator starts the reversible motor 13, the first lead screw 14 will drive the heating ring 9 to move on the outer circular wall of the high-cylinder reactor 1. The heating ring 9 can be moved upward by the reversible motor 13.
[0035] A hollow column 15 is slidably connected inside the discharge pipe 4; a first connecting plate 27 is provided inside the tall reactor 1; a pair of fixed rods 16 are fixedly connected inside the tall reactor 1; both fixed rods 16 are fixedly connected to the bottom end of the first connecting plate 27; a pair of sliding rods 18 are fixedly connected to the bottom end of the first connecting plate 27; the hollow column 15 is slidably connected to the sliding rods 18; a set of first connecting columns 21 are fixedly connected to the outer circular wall of the hollow column 15; a spring-loaded telescopic rod 17 is fixedly connected to the bottom end of each set of first connecting columns 21; a transmission component is provided on the outer circular wall of the tall reactor 1; the transmission component is used to drive the sliding of the hollow column 15. During operation... By setting a hollow column 15 inside the discharge pipe 4, it is helpful to discharge the material that has been mixed inside the tall reactor 1. The hollow column 15, which is slidably connected to the first sliding rod 18, will always keep in contact with the first connecting plate 27 due to the elastic telescopic rod 17. This can seal the hollow column 15, preventing the mixed liquid material from being discharged from the hollow column 15. After the internal liquid is mixed, the hollow column 15 can be moved downward by the transmission component, so that the hollow column 15 is no longer in contact with the first connecting plate 27, and the liquid will be discharged from the tall reactor 1 by itself.
[0036] The transmission component includes a connecting ring 19; the connecting ring 19 is slidably connected to the outer circular wall of the high-cylinder reactor 1; a set of support columns 2 are each slidably connected to the outer circular wall of the outer ring 20; a set of first connecting columns 21 are respectively fixed to the outer circular wall of the circular ring 20; a set of first connecting rods 22 are fixed to the bottom end of the connecting ring 19; a set of first connecting rods 22 are respectively fixed to the top end of the set of circular rings 20. During operation, by setting the connecting ring 19 on the outer circular wall of the high-cylinder reactor 1 and connecting the circular rings 20 through the first connecting rods 22, after the liquid material inside the high-cylinder reactor 1 has been mixed, the heating plate can be moved downward by the first lead screw 14 to apply pressure to the connecting ring 19, so that the connecting ring 19 drives the first connecting columns 21 and the hollow column 15 to move downward, so that the liquid material can be discharged from the inside of the high-cylinder reactor 1.
[0037] A third motor 23 is fixedly connected to the top of the tall reactor 1; the output end of the third motor 23 is provided with a first rotating rod 24; one end of the first rotating rod 24 extends into the interior of the tall reactor 1 and is fixedly connected with a set of stirring blades 25. During operation, by fixing the third motor 23 to the top of the tall reactor 1 and driving a set of stirring blades 25 through the first rotating rod 24, the mixing efficiency in the tall reactor 1 can be increased.
[0038] A sealing plate 26 is provided inside the feed inlet 3. During operation, by setting the sealing plate 26 inside the feed inlet 3, the feed inlet 3 can be sealed to prevent dust or impurities from drifting into the high-cylinder reactor 1 and contaminating the materials.
[0039] Each set of support columns 2 is equipped with anti-corrosion rubber pads at the bottom. During operation, the anti-corrosion rubber pads at the bottom of the support columns 2 can be used to prevent corrosion of the support columns 2.
[0040] Working principle: A tall reactor 1 is set up, and a set of support columns 2 can support the tall reactor 1. The feed inlet 3 allows the operator to easily put the materials to be mixed into the tall reactor 1. The first motor 5 and permanent magnet 7 drive the magnetic stirrer 8 to mix the materials. The heating ring 9 can heat the inside of the tall reactor 1 from the outside, increasing the mixing efficiency of the equipment. The power unit can drive the heating ring 9 to move on the outer circular wall of the tall reactor 1, adjusting the heating ring 9 to a suitable heating position. A U-shaped frame 10 is set on one side of the tall reactor 1, and a first chute 11 is opened on one side of the U-shaped frame 10. The first chute 11 is equipped with a first... When the position of the heating ring 9 needs to be adjusted, the slider 12 can be driven by the power unit to move the heating ring 9 within the first slide groove 11 to complete the position adjustment. A reversible motor 13 is fixed to the top of the U-shaped frame 10, and a first lead screw 14 is provided at the output end of the reversible motor 13. When the operator starts the reversible motor 13, the first lead screw 14 will drive the heating ring 9 to move on the outer circular wall of the high-cylinder reactor 1. The reversible motor 13 can achieve upward movement of the heating ring 9. A hollow column 15 is provided inside the discharge pipe 4 to facilitate the discharge of the mixed material inside the high-cylinder reactor 1. The material is slidably connected to the first sliding rod 18. The hollow column 15, due to the elastic telescopic rod 17, remains in contact with the first connecting plate 27, thus sealing the hollow column 15 and preventing the mixed liquid material from draining out. Once the internal liquid mixing is complete, the transmission component can move the hollow column 15 downwards, causing it to no longer contact the first connecting plate 27, and the liquid will then drain from the high-cylinder reactor 1. By installing a connecting ring 19 on the outer wall of the high-cylinder reactor 1 and connecting it to a ring 20 via the first connecting rod 22, after the liquid material inside the high-cylinder reactor 1 is fully mixed, the first lead screw 14 can move the heating plate downwards, thus controlling the flow of liquid. Pressure is applied to the connecting ring 19, causing the connecting ring 19 to drive the first connecting column 21 and the hollow column 15 to move downwards, so that the liquid material can be discharged from the inside of the high-cylinder reactor 1. By fixing the third motor 23 to the top of the high-cylinder reactor 1 and driving a set of stirring blades 25 through the first rotating rod 24, the stirring and mixing efficiency in the high-cylinder reactor 1 can be increased. By setting a sealing plate 26 in the feed inlet 3, the feed inlet 3 can be sealed when the equipment is working, preventing dust or impurities from drifting into the high-cylinder reactor 1 and contaminating the material. By setting an anti-corrosion rubber pad at the bottom of the support column 2, the support column 2 can be protected against corrosion.
[0041] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel magnetic stirrer, characterized in that: The reactor includes a tall cylindrical reactor; a set of support columns are fixedly connected to the bottom of the tall cylindrical reactor; a feed inlet is opened at the top of the tall cylindrical reactor; a discharge pipe is fixedly connected to the bottom of the tall cylindrical reactor; a set of first motors are fixedly connected to the bottom of the tall cylindrical reactor; a rotating shaft is fixedly connected to the output end of each set of first motors; a permanent magnet is fixedly connected to one end of each set of rotating shafts; the permanent magnets penetrate the tall cylindrical reactor; a set of magnetic stir bar is provided inside the tall cylindrical reactor; the magnetic stir bar is rotatably connected inside the tall cylindrical reactor; the magnetic stir bar is mounted on the permanent magnet; a heating ring is provided on the outer circular wall of the tall cylindrical reactor; a power assembly is provided on one side of the tall cylindrical reactor; the power assembly is used to drive the movement of the heating ring.
2. The novel magnetic stirrer according to claim 1, characterized in that: The power assembly includes a U-shaped frame and a power unit; the U-shaped frame is fixed to one side of the tall reactor; a first sliding groove is provided on one side of the U-shaped frame; a first slider is slidably connected in the first sliding groove; the first slider is fixed to one side of the heating ring; the heating ring is slidably connected to the outer circular wall of the tall reactor.
3. A novel magnetic stirrer according to claim 2, characterized in that: The power unit includes a reversible motor; the reversible motor is fixed to the top of the U-shaped frame; the output end of the reversible motor is provided with a first lead screw; one end of the first lead screw passes through the U-shaped frame and is rotatably connected in the first slide groove; the first slider is connected to the first lead screw through a lead screw and nut pair.
4. A novel magnetic stirrer according to claim 3, characterized in that: A hollow column is slidably connected inside the discharge pipe; a first connecting plate is provided inside the tall reactor; a pair of fixed rods are fixedly connected inside the tall reactor; both of the fixed rods are fixedly connected to the bottom end of the first connecting plate; a pair of sliding rods are fixedly connected to the bottom end of the first connecting plate; the hollow column is slidably connected to the sliding rods; a set of first connecting columns are fixedly connected to the outer circular wall of the hollow column; a spring telescopic rod is fixedly connected to the bottom end of each set of first connecting columns; a transmission component is provided on the outer circular wall of the tall reactor; the transmission component is used to drive the sliding of the hollow column.
5. A novel magnetic stirrer according to claim 4, characterized in that: The transmission component includes a connecting ring; the connecting ring is slidably connected to the outer circular wall of the high-cylinder reactor; a set of supporting columns are each slidably connected to a ring on their outer circular wall; a set of first connecting columns are respectively fixed to the outer circular wall of the ring; a set of first connecting rods are fixedly connected to the bottom end of the connecting ring; a set of first connecting rods are respectively fixedly connected to the top end of the set of rings.
6. A novel magnetic stirrer according to claim 5, characterized in that: A third motor is fixedly connected to the top of the tall reactor; a first rotating rod is provided at the output end of the third motor; one end of the first rotating rod extends into the interior of the tall reactor and is fixedly connected to a set of stirring blades.
7. A novel magnetic stirrer according to claim 6, characterized in that: A sealing plate is provided inside the feed inlet.
8. A novel magnetic stirrer according to claim 7, characterized in that: Each of the support columns is equipped with a corrosion-resistant rubber pad at its bottom.