Magnetic stirrer for laboratory

Abstract

The utility model relates to the technical field of laboratory instruments, in particular to a magnetic stirrer for a laboratory, which is characterized in that a clamping structure for fixing a container is arranged on a magnetic stirrer body; the clamping structure comprises a supporting ring arranged above the placement surface of the magnetic stirrer body and clamping plates arranged in the circumferential direction of the supporting ring, and each clamping plate is provided with a clamping surface and is used for fixing a container through the clamping surfaces of at least three clamping plates; the clamping structure further comprises a first elastic element used for driving the clamping faces of the clamping plates to be close to the axis of the supporting ring. By means of the innovative clamping structure design, the technical problem of fixing of an existing magnetic stirrer container is effectively solved, the magnetic stirrer container fixing device has the advantages of being reasonable in structure, convenient and fast to operate, high in applicability and the like, and experiment safety and reliability are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of laboratory instrument technology, specifically to a magnetic stirrer for laboratory use. Background Technology

[0002] In the laboratory, magnetic stirrers are commonly used liquid mixing devices, which use a magnetic field to drive a stir bar to achieve liquid mixing.

[0003] However, existing magnetic stirrers typically only provide a flat support platform. Due to improper operation (such as sudden changes in stirring speed or improper placement of the container) or instrument problems (such as insufficient rigidity of the support platform or unstable magnetic drive), when stirring at high speed or using irregularly shaped containers, the containers are prone to displacement or tipping due to vibration, which may lead to risks such as liquid splashing, experimental data deviation, or even safety accidents.

[0004] Therefore, there is an urgent need for a laboratory magnetic stirrer that can stably fix containers to improve the safety and reliability of experimental operations. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a laboratory magnetic stirrer that achieves stable fixation of experimental containers by setting a clamping structure, thereby solving the problem of container shaking and tipping in existing equipment.

[0006] To achieve the above objectives, this utility model provides a laboratory magnetic stirrer, the magnetic stirrer body of which is provided with a clamping structure for fixing containers.

[0007] The clamping structure includes a support ring disposed above the placement surface of the magnetic stirrer body, and clamping plates disposed circumferentially along the support ring. The clamping plates have clamping surfaces for fixing the container by clamping surfaces of at least three clamping plates.

[0008] The clamping structure also includes a first elastic element for driving the clamping surface of the clamping plate close to the axis of the support ring.

[0009] Preferably, the support ring includes an upper ring body and a lower ring body, and the upper ring body and the lower ring body are fastened together by screws;

[0010] The lower ring is fixed to the body of the magnetic stirrer by a support structure.

[0011] Preferably, the top of the clamping plate is provided with a ring tube, and the clamping surface is located at the bottom of the clamping plate;

[0012] The top of the clamp plate is hinged to the hinge seat formed by the inner wall of the lower ring through the ring tube.

[0013] Preferably, the clamping surface of the clamping plate makes point contact with the outer wall of the container.

[0014] Preferably, the clamping structure further includes a locking rod;

[0015] The locking rod corresponds to the clamping plate and is located on the inner wall of the lower ring body;

[0016] The locking rod has an insertion end and a force-bearing end, which are used to insert into the inner wall of the ring tube to form an interference fit; and the insertion end has a tapered structure and a rubber sleeve attached to the outer wall.

[0017] Preferably, a sleeve is fitted on the locking rod, one end of the sleeve is fixedly connected to the hinge seat, and the other end of the sleeve is penetrated by the force-bearing end of the locking rod;

[0018] The outer wall of the locking rod forms an annular protrusion, and the protrusion is located inside the sleeve.

[0019] Preferably, a locking ring is fitted on the lower ring body, and the inner wall of the locking ring is formed with a protrusion for pushing the force-bearing end of the locking rod so that its insertion end extends into the ring tube;

[0020] The lower ring body has a movable groove, and the protrusion extends through the movable groove to the inner wall of the lower ring body. The force-bearing end of the locking rod is hinged to the protrusion through a hinge, which is used to pull the locking rod out of the ring tube.

[0021] Preferably, the outer wall of the locking ring is hinged with a buckle, and the lower ring body has a slot corresponding to the buckle insertion end;

[0022] A second elastic element is provided between the outer wall of the locking ring and the force-bearing end of the buckle, which is used to push the buckle insertion end to contact the outer wall of the lower ring.

[0023] The beneficial effects of this utility model are:

[0024] 1. This utility model effectively solves the technical problem of fixing the container in existing magnetic stirrers through innovative clamping structure design. It has the advantages of reasonable structure, convenient operation and strong applicability, and significantly improves experimental safety and reliability.

[0025] 2. Stable clamping: The elastic clamping and locking mechanism of at least three clamping plates enables stable fixation of containers of different sizes, preventing containers from shifting or tipping over during stirring.

[0026] 3. Convenient operation: The linkage structure of the locking ring and buckle facilitates quick installation and disassembly of containers, improving experimental efficiency.

[0027] 4. High versatility: The point contact clamping surface and split support ring design are compatible with experimental containers of various shapes and sizes, and have a wide range of applications. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the container's fixed state structure according to this utility model;

[0030] Figure 2 This is a schematic diagram of the container structure before it is fixed according to this utility model;

[0031] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 4 This is an exploded structural diagram of the present invention;

[0033] Figure 5 This is a partial structural schematic diagram of the present invention;

[0034] Figure 6 This is a schematic diagram of the internal structure of the present invention;

[0035] The numbers on the map are:

[0036] 1-Magnetic stirrer body; 2-Support ring; 21-Upper ring body; 22-Lower ring body; 221-Hinge seat; 222-Modible groove; 223-Bayonet; 3-Clamping plate; 31-Ring tube; 32-Clamping surface; 4-First elastic element; 5-Locking rod; 51-Rubber sleeve; 52-Protruding ring; 53-Sleeve; 6-Locking ring; 61-Protrusion; 62-Snap; 63-Second elastic element; 7-Container. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] This utility model proposes a magnetic stirrer for laboratory use, such as... Figures 1 to 3 As shown, the magnetic stirrer body 1 is provided with a clamping structure for fixing the container 7. The clamping structure includes a support ring 2 located above the placement surface of the magnetic stirrer body 1, and a clamping plate 3 arranged circumferentially along the support ring 2. The clamping plate 3 has a clamping surface 32. The container 7 is fixed by the combined action of the clamping surfaces 32 of at least three clamping plates 3, forming a stable three-point or multi-point clamping structure.

[0040] The clamping structure also includes a first elastic element 4, which drives the clamping surface 32 of the clamping plate 3 to approach the axis of the support ring 2. Through the elastic force of the elastic element, the clamping plate 3 can adapt to containers 7 of different diameters, providing a uniform clamping force during clamping and ensuring the stability of the container 7.

[0041] like Figure 4 As shown, the support ring 2 adopts a split design, including an upper ring body 21 and a lower ring body 22, which are fastened together by screws for easy disassembly and maintenance. The lower ring body 22 is fixed to the body of the magnetic stirrer by a support structure, ensuring the stable installation of the entire clamping structure.

[0042] like Figure 3 and Figure 4 As shown, the clamping plate 3 has an annular tube 31 at its top and a clamping surface 32 at its bottom. The top of the clamping plate 3 is hinged to a hinge seat 221 formed by the annular tube 31 and the inner wall of the lower ring 22, allowing the clamping plate 3 to rotate around the hinge point and realize the opening and closing action of the clamping surface 32. This hinge design, combined with the drive of the first elastic element 4, allows the clamping plate 3 to flexibly adapt to changes in the size of the container 7.

[0043] The clamping surface 32 of the clamping plate 3 forms point contact with the outer wall of the container 7, which can effectively fix the container 7 and reduce the wear on the outer wall of the container 7, while adapting to the surface of the container 7 of different shapes (such as cylindrical and conical).

[0044] like Figures 4 to 6 As shown, a locking rod 5 is provided in the clamping structure to further fix the position of the clamping plate 3. The locking rod 5 corresponds to the clamping plate 3 and is located on the inner wall of the lower ring body 22. It has an insertion end and a force-bearing end.

[0045] The insertion end has a conical structure and a rubber sleeve 51 attached to the outer wall. When inserted into the inner wall of the ring tube 31, it forms an interference fit and locks the position of the clamping plate 3 by friction to prevent it from loosening during the stirring process.

[0046] A sleeve 53 is fitted onto the locking rod 5. One end of the sleeve 53 is fixedly connected to the hinge seat 221, and the other end is penetrated by the force-bearing end of the locking rod 5. The annular protrusion 52 on the outer wall of the locking rod 5 is located inside the sleeve 53, which restricts the axial movement range of the locking rod 5 and ensures stable insertion and withdrawal of the insertion end.

[0047] like Figures 4 to 6 As shown, a locking ring 6 is fitted on the lower ring body 22, and the protrusion 61 on its inner wall extends through the movable groove 222 to the inner wall of the lower ring body 22, and is hinged to the force-bearing end of the locking rod 5 through a hinge.

[0048] When the locking ring 6 is rotated, the protrusion 61 pushes the force-bearing end of the locking rod 5, causing the insertion end to extend into or disengage from the ring tube 31, thereby achieving a rapid switching of the locking state.

[0049] The outer wall of the locking ring 6 is hinged with a buckle 62, and the lower ring body 22 is provided with a slot 223 corresponding to the insertion end of the buckle 62. The two cooperate to fix the position of the locking ring 6. A second elastic element 63 is provided between the force-bearing end of the buckle 62 and the outer wall of the locking ring 6, which pushes the insertion end of the buckle 62 to contact the outer wall of the lower ring body 22, preventing the locking ring 6 from rotating accidentally after the insertion end of the buckle 62 is embedded in the slot 223.

[0050] Locking Operation Procedure

[0051] When installing container 7, place container 7 inside support ring 2. Clamping plate 3 initially clamps the outer wall of container 7 under the action of first elastic element 4. Rotate locking ring 6 so that the protrusion 61 on the inner wall of locking ring 6 pushes the force-bearing end of locking rod 5. The conical structure with rubber sleeve 51 at the insertion end extends into ring tube 31, locking the position of clamping plate 3 through interference fit. Buckle 62 engages with the slot 223 of lower ring body 22 under the action of second elastic element 63, fixing locking ring 6. When disassembling, press buckle 62 to disengage it from slot 223, rotate locking ring 6 in the opposite direction, and the insertion end of locking rod 5 exits ring tube 31, allowing container 7 to be removed.

[0052] Specifically, in this technical solution, structural components such as clamping plate 3 and support ring 2 can be made of corrosion-resistant stainless steel or high-strength engineering plastics, the first elastic element 4 and the second elastic element 63 are made of fatigue-resistant springs, and the rubber sleeve 51 is made of chemically resistant silicone material to ensure that the equipment can operate stably for a long time in the complex environment of the laboratory.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0054] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laboratory magnetic stirrer, characterized in that, The magnetic stirrer body is equipped with a clamping structure for securing the container; The clamping structure includes a support ring disposed above the placement surface of the magnetic stirrer body, and clamping plates disposed circumferentially along the support ring. The clamping plates have clamping surfaces for fixing the container by clamping surfaces of at least three clamping plates. The clamping structure also includes a first elastic element for driving the clamping surface of the clamping plate close to the axis of the support ring.

2. The laboratory magnetic stirrer according to claim 1, characterized in that, The support ring includes an upper ring body and a lower ring body, which are fastened together by screws; The lower ring is fixed to the body of the magnetic stirrer by a support structure.

3. A laboratory magnetic stirrer according to claim 2, characterized in that, The top of the clamping plate is provided with a ring tube, and the clamping surface is located at the bottom of the clamping plate; The top of the clamp plate is hinged to the hinge seat formed by the inner wall of the lower ring through the ring tube.

4. A laboratory magnetic stirrer according to claim 3, characterized in that, The clamping surface of the clamping plate makes point contact with the outer wall of the container.

5. A laboratory magnetic stirrer according to claim 3, characterized in that, The clamping structure also includes a locking rod; The locking rod corresponds to the clamping plate and is located on the inner wall of the lower ring body; The locking rod has an insertion end and a force-bearing end, which are used to insert into the inner wall of the ring tube to form an interference fit; and the insertion end has a tapered structure and a rubber sleeve attached to the outer wall.

6. A laboratory magnetic stirrer according to claim 5, characterized in that, A sleeve is fitted on the locking rod, one end of which is fixedly connected to the hinge seat, and the other end of the sleeve is penetrated by the force-bearing end of the locking rod. The outer wall of the locking rod forms an annular protrusion, and the protrusion is located inside the sleeve.

7. A laboratory magnetic stirrer according to claim 6, characterized in that, A locking ring is fitted on the lower ring body, and a protrusion is formed on the inner wall of the locking ring to push the force-bearing end of the locking rod so that its insertion end extends into the ring tube; The lower ring body has a movable groove, and the protrusion extends through the movable groove to the inner wall of the lower ring body. The force-bearing end of the locking rod is hinged to the protrusion through a hinge, which is used to pull the locking rod out of the ring tube.

8. A laboratory magnetic stirrer according to claim 7, characterized in that, The outer wall of the locking ring is hinged with a buckle, and the lower ring body has a slot corresponding to the buckle insertion end; A second elastic element is provided between the outer wall of the locking ring and the force-bearing end of the buckle, which is used to push the buckle insertion end to contact the outer wall of the lower ring.

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