Laboratory magnetic stirrer capable of preventing splashing

Abstract

The utility model relates to the field of laboratory magnetic stirring machines, in particular to a laboratory magnetic stirring machine capable of preventing splashing, and aims to solve the technical problem that corrosive reagents in a container are easy to splash in the stirring process when the conventional laboratory magnetic stirring machine is used. According to the technical scheme, the laboratory magnetic stirrer capable of preventing splashing comprises a supporting base, a supporting platform, a heating pad, an electromagnetic stirring rotor, a blocking cover, a fixing assembly and a lifting assembly, wherein a magnet and a motor are arranged in the supporting base; the blocking cover located at the upper end of the supporting platform is additionally arranged on an existing laboratory magnetic stirrer, the blocking cover is tightly attached to the top end of the container, blocking is formed above the container, the container becomes a closed space, a solution in the container is prevented from splashing out, and the surrounding experimental equipment and workers are protected; the utility model aims to solve the problem that corrosive reagents in a container are easy to splash in the stirring process in the using process of the existing laboratory magnetic stirrer.

Description

Technical Field

[0001] The utility model belongs to the field of laboratory magnetic stirrers, and in particular relates to a laboratory magnetic stirrer capable of preventing splashing. Background Art

[0002] In laboratories, it is often necessary to stir low-viscosity liquids or solid-liquid mixtures. Magnetic stirrers can heat and control the sample temperature according to specific experimental requirements, maintain the temperature conditions required by the experimental conditions, and use a magnetic field to drive a magnetic stirrer placed in a container to perform circular motion, thereby achieving the purpose of stirring the liquid. Because they can ensure liquid mixing and meet experimental requirements, they are widely used in laboratories.

[0003] At present, existing laboratory magnetic mixers often directly place open containers on the magnetic platform. During use, since there is no blocking protective device on the upper end, the reagents in the container are easy to splash during the stirring process, corroding surrounding objects and posing a danger to surrounding staff.

[0004] Therefore, during the use of the above-mentioned existing laboratory magnetic stirrer, since the upper end of the container is open, the corrosive reagent in the container is easy to splash during the stirring process, causing adverse effects on surrounding staff and objects. Utility Model Content

[0005] In order to overcome the problem that the corrosive reagents in the container of the existing laboratory magnetic stirrer are easily splashed during the stirring process during use.

[0006] The technical solution of the utility model is: a laboratory magnetic stirrer for preventing splashing, comprising a supporting base with built-in magnets and motors, a supporting platform, a heating pad, an electromagnetic stirring rotor, a baffle, a fixing assembly, and a lifting assembly; a supporting platform is installed on the supporting base, a heating pad is installed between the supporting base and the supporting platform, an electromagnetic stirring rotor is arranged above the supporting platform, a baffle for blocking splashing liquid is arranged on the electromagnetic stirring rotor, a fixing assembly connected to the electromagnetic stirring rotor is installed on the baffle, and a lifting assembly for adjusting the height of the electromagnetic stirring rotor and the baffle is installed on the front side of the supporting base.

[0007] Preferably, a baffle cover is added to the existing laboratory magnetic stirrer, and the baffle cover is close to the upper edge of the container to form an enclosed space to prevent the liquid in the container from splashing out from the open opening during stirring. The fixing component fixes the electromagnetic stirring rotor under the baffle cover, and the lifting component adjusts the height of the baffle cover and the electromagnetic stirring rotor according to the height of the container.

[0008] Preferably, the fixing assembly includes a connecting rod, a No. 1 threaded connecting tube, and a No. 2 threaded connecting tube; a connecting rod is inserted into the baffle cover, the top end of the connecting rod is fixedly connected to the No. 1 threaded connecting tube, and the bottom end of the connecting rod is fixedly connected to the No. 2 threaded connecting tube, and the electromagnetic stirring rotor and the baffle cover are fixed together through the connecting rod, so that the lifting assembly can drive the electromagnetic stirring rotor and the baffle cover to move together.

[0009] Preferably, the fixing assembly further includes a fixing sleeve and an annular mounting seat; the fixing sleeve is screwed onto the No. 1 threaded connecting pipe, the bottom end of the fixing sleeve is fixedly connected to the annular mounting seat, the annular mounting seat is installed on the top of the baffle cover, the diameter of the fixing sleeve screwed onto the outside of the No. 1 threaded connecting pipe is larger than the hole groove opened on the baffle cover, which can play a blocking role and prevent the connecting rod from falling due to gravity. An anchor hole is opened on the annular mounting seat, which is fixed to the top of the baffle cover by rivets.

[0010] Preferably, the fixing assembly also includes a connecting ring; the connecting ring is screwed onto the outside of the No. 2 threaded connecting tube, an annular groove is provided on the outside of the connecting ring, a slider is movably connected in the groove, and the electromagnetic stirring rotor is fixedly connected to the outside of the slider. Through the slider and the groove, the electromagnetic stirring rotor can be driven to rotate by the bottom magnetic block when it is fixed under the baffle cover through the connecting ring.

[0011] Preferably, a container for containing reagents is placed on the supporting platform, the electromagnetic stirring rotor is arranged in the container, the baffle is close to the upper edge of the container, and the electromagnetic stirring rotor is fixed to the upper end of the baffle by a fixing assembly, so as to facilitate the removal of the electromagnetic stirring rotor from the corrosive or high-temperature solution.

[0012] Preferably, the lifting assembly includes a lifting column and a lifting platform; a lifting column with a lifting groove on its surface is installed on the front side of the supporting base, and a lifting platform is movably connected in the lifting groove. The lifting platform is fixedly connected to the front side of the baffle cover. The height of the baffle cover and the electromagnetic stirring rotor installed under the baffle cover can be changed by moving the lifting platform up and down in the lifting groove, thereby improving the versatility of the magnetic stirrer.

[0013] Preferably, the lifting assembly also includes a threaded rod and a motor; the threaded rod is inserted into the lifting slot, a screw hole matching the threaded rod is opened on the lifting platform, a transmission element is installed on the lifting column and connected to the motor on the threaded rod, the motor drives the threaded rod to rotate, and under the restriction of the lifting slot, the lifting platform cannot rotate with the threaded rod, but moves up and down on the threaded rod.

[0014] Beneficial effects of the utility model:

[0015] 1. By adding a cover located at the upper end of the support platform to the existing laboratory magnetic mixer, the cover is close to the top of the container, forming a barrier above the container to make it a closed space, avoiding the splashing of the solution in the container, and protecting the surrounding experimental equipment and staff. The lifting component drives the cover to change the height of the cover according to the height of the container, thereby improving the versatility of the laboratory magnetic mixer;

[0016] 2. The electromagnetic stirring rotor is installed under the cover through a connecting rod, which is convenient for quickly taking it out of the container by lifting it through a lifting platform after the stirring is completed. It is more convenient to take out than the traditional method of directly placing the electromagnetic stirring rotor in the container, and can avoid the damage caused by the corrosiveness of the solvent and the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first stereoscopic structure diagram of the laboratory magnetic stirrer for preventing splashing of the utility model is shown;

[0018] Figure 2 The second stereoscopic structure schematic diagram of the laboratory magnetic stirrer for preventing splashing of the utility model is shown;

[0019] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the fixed space and electromagnetic stirring rotor of the laboratory magnetic stirrer for preventing splashing of the utility model;

[0020] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the connecting rod of the laboratory magnetic stirrer for preventing splashing of the utility model;

[0021] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the connecting ring and electromagnetic stirring rotor of the laboratory magnetic stirrer for preventing splashing of the utility model;

[0022] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the lifting component of the laboratory magnetic stirrer for preventing splashing of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Support base; 2. Support platform; 3. Heating pad; 4. Electromagnetic stirring rotor; 5. Cover; 601. Connecting rod; 602. No. 1 threaded connecting pipe; 603. No. 2 threaded connecting pipe; 604. Fixing sleeve; 605. Ring-shaped mounting seat; 606. Connecting ring; 701. Lifting column; 702. Lifting platform; 703. Threaded rod; 704. Motor. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2The utility model provides an embodiment: a laboratory magnetic stirrer for preventing splashing comprises a support base 1 with a built-in magnet and a motor, a support platform 2, a heating pad 3, an electromagnetic stirring rotor 4, a baffle 5, a fixing assembly, and a lifting assembly; the support base 1 is provided with a support platform 2, a heating pad 3 is installed between the support base 1 and the support platform 2, an electromagnetic stirring rotor 4 is arranged above the support platform 2, a baffle 5 for blocking splashing liquid is arranged on the electromagnetic stirring rotor 4, a fixing assembly connected to the electromagnetic stirring rotor 4 is installed on the baffle 5, a lifting assembly for adjusting the height of the electromagnetic stirring rotor 4 and the baffle 5 is installed on the front side of the support base 1, by adding the baffle 5 to the existing laboratory magnetic stirrer, the baffle 5 is close to the upper edge of the container to form a closed space, so as to prevent the liquid in the container from splashing out from the open during the stirring process, the fixing assembly fixes the electromagnetic stirring rotor 4 under the baffle 5, and the lifting assembly adjusts the height of the baffle 5 and the electromagnetic stirring rotor 4 according to the height of the container.

[0026] See also Figure 1 , 3 , 4, 5. In the present embodiment, the fixing assembly includes a connecting rod 601, a No. 1 threaded connecting tube 602, and a No. 2 threaded connecting tube 603; the connecting rod 601 is inserted into the blocking cover 5, the top of the connecting rod 601 is fixedly connected to the No. 1 threaded connecting tube 602, and the bottom of the connecting rod 601 is fixedly connected to the No. 2 threaded connecting tube 603, and the fixing assembly also includes a fixing sleeve 604 and an annular mounting seat 605; the fixing sleeve 604 is screwed to the No. 1 threaded connecting tube 602, and the bottom of the fixing sleeve 604 is fixedly connected to the annular mounting seat 605, and the annular mounting seat 605 is installed on the top of the blocking cover 5, and the fixing assembly also includes a connecting ring 606; the connecting ring 606 is screwed to the outer side of the No. 2 threaded connecting tube 603, and an annular slide groove is provided on the outer side of the connecting ring 606, and a slider is movably connected in the slide groove, and the electromagnetic stirring rotor 4 is fixedly connected to the outer side of the slider, supporting the platform 2 is provided with a container for containing reagents, the electromagnetic stirring rotor 4 is arranged in the container, the baffle 5 is close to the upper edge of the container, the electromagnetic stirring rotor 4 and the baffle 5 are fixed together by a connecting rod 601, so that the lifting assembly can drive the electromagnetic stirring rotor 4 and the baffle 5 to move together, the diameter of the fixing sleeve 604 screwed on the outer side of the No. 1 threaded connecting tube 602 is larger than the hole groove provided on the baffle 5, and can play a blocking role to prevent the connecting rod 601 from falling due to gravity, the annular mounting seat 605 is provided with an anchor hole, which is fixed to the top of the baffle 5 by rivets, and the electromagnetic stirring rotor 4 can be driven to rotate by the bottom magnetic block when it is fixed under the baffle 5 by the connecting ring 606 through the slider and the slide groove, and the electromagnetic stirring rotor 4 is fixed to the upper end of the baffle 5 by the fixing assembly, so that the electromagnetic stirring rotor 4 can be conveniently taken out of the corrosive or high-temperature solution.

[0027] See also Figure 6In this embodiment, the lifting assembly includes a lifting column 701 and a lifting platform 702; a lifting column 701 with a lifting groove on the surface is installed on the front side of the support base 1, and a lifting platform 702 is movably connected in the lifting groove, and the lifting platform 702 is fixedly connected to the front side of the blocking cover 5. The lifting assembly also includes a threaded rod 703 and a motor 704; a threaded rod 703 is inserted in the lifting groove, and a screw hole matching the threaded rod 703 is opened on the lifting platform 702. A transmission element is installed on the lifting column 701 and connected to the motor 704 on the threaded rod 703. The height of the blocking cover 5 and the electromagnetic stirring rotor 4 installed under the blocking cover 5 is changed by moving the lifting platform 702 up and down in the lifting groove, thereby improving the versatility of the magnetic stirrer. The motor 704 drives the threaded rod 703 to rotate. Under the restriction of the lifting groove, the lifting platform 702 cannot rotate with the threaded rod 703, but moves up and down on the threaded rod 703.

[0028] When working, the staff first takes out the electromagnetic stirring rotor 4 that is adapted according to the inner diameter of the container and is movably connected to the connecting ring 606 through the slider and the slide groove, and screws it to the outer side of the second threaded connecting tube 603 at the lower end of the connecting rod 601 selected according to the height of the container, and then passes the connecting rod 601 through the hole groove opened on the blocking cover 5, screws the fixing sleeve 604 to the outer side of the first threaded connecting tube 602 above the blocking cover 5, and then makes the annular mounting seat 605 close to the top of the blocking cover 5 and fixes it with screws;

[0029] Place a container filled with liquid or solid-liquid mixture on the support platform 2, start the motor 704, the motor 704 drives the threaded rod 703 to rotate, and under the limitation of the lifting groove, the lifting platform 702 drives the cover 5 and the electromagnetic stirring rotor 4 to move downward on the threaded rod until the bottom end of the cover 5 is close to the top of the container, and the electromagnetic stirring rotor 4 is located on the inner wall of the container, and the motor in the support base 1 is started to drive the magnet to rotate, and the electromagnetic stirring rotor 4 rotates with the rotation of the magnet through the magnetic attraction of the magnet, and the heating pad 3 is controlled to start through the temperature control panel on the support base 1 to heat the liquid in the container to the temperature required for the experiment. The cover 5 is located at the top of the container to prevent the liquid in the container from splashing during the stirring process;

[0030] When the stirring is completed, the motor 704 is started, and the lifting platform 702 drives the cover 5 and the electromagnetic stirring rotor 4 to move upward, waiting for the electromagnetic stirring rotor 4, the fixed component and the cover 5 to move upward, so as to facilitate the removal of the container after the stirring is completed. The inner sides of the electromagnetic stirring rotor 4, the fixed component and the cover 5 are sprayed with anti-corrosion paint to avoid corrosion.

[0031] Through the above steps, a baffle 5 located at the upper end of the supporting platform 2 is added to the existing laboratory magnetic stirrer. The baffle 5 is tightly attached to the top of the container to form a barrier above the container, making it a closed space to prevent the solution in the container from splashing out, thereby protecting the surrounding experimental equipment and staff. The lifting assembly drives the baffle 5 to change the height of the baffle 5 according to the height of the container, thereby improving the versatility of the laboratory magnetic stirrer and solving the problem that the corrosive reagent in the container is prone to splashing during the stirring process during the use of the existing laboratory magnetic stirrer.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A laboratory magnetic stirrer for preventing splashing, comprising a support base (1) with a built-in magnet and a motor, a support platform (2), a heating pad (3), and an electromagnetic stirring rotor (4); characterized in that: It also comprises a baffle (5), a fixing assembly and a lifting assembly; a supporting platform (2) is mounted on the supporting base (1); a heating pad (3) is mounted between the supporting base (1) and the supporting platform (2); an electromagnetic stirring rotor (4) is arranged above the supporting platform (2); a baffle (5) for blocking splashing liquid is arranged on the electromagnetic stirring rotor (4); a fixing assembly connected to the electromagnetic stirring rotor (4) is mounted on the baffle (5); and a lifting assembly for adjusting the height of the electromagnetic stirring rotor (4) and the baffle (5) is mounted on the front side of the supporting base (1); The fixing assembly comprises a connecting rod (601), a No. 1 threaded connecting tube (602), and a No. 2 threaded connecting tube (603); the connecting rod (601) is inserted into the blocking cover (5), the top of the connecting rod (601) is fixedly connected to the No. 1 threaded connecting tube (602), and the bottom of the connecting rod (601) is fixedly connected to the No. 2 threaded connecting tube (603); the fixing assembly further comprises a fixing sleeve (604) and an annular mounting seat (605); the fixing sleeve (604) is screwed to the No. 1 threaded connecting tube (602), the bottom of the fixing sleeve (604) is fixedly connected to the annular mounting seat (605), and the annular mounting seat (605) is installed on the top of the blocking cover (5); the fixing assembly also comprises a connecting ring (606); the connecting ring (606) is screwed to the outside of the No. 2 threaded connecting tube (603), an annular sliding groove is provided on the outside of the connecting ring (606), a slider is movably connected in the sliding groove, and the electromagnetic stirring rotor (4) is fixedly connected to the outside of the slider; The lifting assembly comprises a lifting column (701) and a lifting platform (702); a lifting column (701) with a lifting groove on its surface is installed on the front side of the support base (1), the lifting platform (702) is movably connected in the lifting groove, and the lifting platform (702) is fixedly connected to the front side of the blocking cover (5); the lifting assembly also comprises a threaded rod (703) and a motor (704); the threaded rod (703) is inserted in the lifting groove, a screw hole matching the threaded rod (703) is opened on the lifting platform (702), and a motor (704) having a transmission element connected to the threaded rod (703) is installed on the lifting column (701).

2. The splash-proof laboratory magnetic stirrer according to claim 1, characterized in that: A container containing reagents is placed on the support platform (2), an electromagnetic stirring rotor (4) is arranged in the container, and a blocking cover (5) is closely attached to the upper edge of the container.

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