Magnetic stirrer with constant temperature function

Abstract

The utility model relates to a magnetic stirrer with a constant temperature function, which belongs to the technical field of magnetic stirrers and comprises a bottom plate, four supporting legs are fixed at the top end of the bottom plate, a mounting box is fixed at the top ends of the supporting legs, a stirring box is fixed at the top end of the mounting box, and heat dissipation mechanisms are arranged on the mounting box and the stirring box. A stirring mechanism is arranged at the top end in the mounting box, a partition plate is fixed between the upper end and the lower end of the inner wall of the stirring box, a temperature measuring mechanism is arranged at the top end of the bottom plate, and two heating plates are fixed to the bottom end of the inner wall of the stirring box. According to the magnetic stirrer with the constant temperature function, heat dissipation mechanisms are arranged on the mounting box and the stirring box, so that the stirring box can be rapidly cooled when the stirring box needs to be cooled, the stirring box does not need to be naturally cooled, and the cooling efficiency is improved; the temperature in the stirring box can be measured through the thermometer, and manual measurement is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic stirrers, in particular to a magnetic stirrer with a constant temperature function. Background Art

[0002] A magnetic stirrer is an instrument that utilizes the property of like poles of magnetic substances repelling each other. By continuously changing the polarities at both ends of the base, it drives the magnetic stir bar to rotate, and then relies on the rotation of the magnetic stir bar to drive the sample to rotate, so that the sample can be evenly mixed. A magnetic stirrer is a modern term and a proper noun, referring to liquids with not very high viscosity.

[0003] For example, Chinese Patent (CN219631363U) discloses a magnetic stirrer with a constant temperature heating function, including a bottom plate. A mounting box is fixedly connected to the top of the bottom plate near the left side. Vertical plates are fixedly connected to the top and bottom of the inner cavity of the mounting box near the left and right sides. A motor is fixedly connected to the left side of the right vertical plate near the bottom. The power output shaft of the motor is fixedly connected to a rotating shaft. The left end of the rotating shaft is fixedly connected to a driving gear. Through the mutual cooperation of various components, it is convenient to clamp and fix the heating vessel, and the clamping firmness is good. It avoids the vibration generated during the movement and stirring of the temperature measuring bracket, resulting in the displacement of the heating vessel, improves the stability of the heating vessel, and is convenient for replacing the heating vessel. At the same time, it is convenient to adjust the overall height fixation of the temperature measuring bracket, solving the problem that the temperature measuring head needs to be removed to replace the heating vessel, and the operation is convenient.

[0004] The above solution still has the following technical defects. The above solution is not convenient for cooling the stirring box and the bath solution. After the stirring box is used, it needs to be cooled. If only relying on the natural cooling of the stirring box, the cooling speed is too slow, the cooling time is too long, and the efficiency is very low. Based on this, a magnetic stirrer with a constant temperature function is proposed. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a magnetic stirrer with a constant temperature function, which has the advantages of being convenient for cooling the bath solution and the stirring box, etc., and solves the problem that the bath solution and the stirring box are not convenient for cooling.

[0006] To achieve the above object, the utility model provides the following technical solution: A magnetic stirrer with a constant temperature function, including a bottom plate. Four support legs are fixed to the top end of the bottom plate. The top ends of the support legs are fixed with a mounting box. A stirring box is fixed to the top end of the mounting box. A heat dissipation mechanism is provided on the mounting box and the stirring box. A stirring mechanism is provided at the top end inside the mounting box. A partition is fixed between the upper and lower ends of the inner wall of the stirring box. A temperature measuring mechanism is provided at the top end of the bottom plate. Two heating plates are fixed to the bottom end of the inner wall of the stirring box;

[0007] The heat dissipation mechanism includes a water tank fixed to the bottom end of the inner wall of the installation box. A water outlet pipe is fixed to the right side of the water tank. One end of the water outlet pipe away from the water tank is fixed with a water pump. The output end of the water pump is fixed with a water inlet pipe. A first valve is fixed on the water inlet pipe. The heat dissipation mechanism further includes a return pipe fixed to the left side of the mixing tank. A second valve is fixed on the return pipe. The heat dissipation mechanism further includes a plurality of heat dissipation plates fixed to the bottom end of the water tank and two fans fixed to the left and right sides of the installation box.

[0008] Furthermore, the temperature measurement mechanism includes a first motor at the top end of the bottom plate. The output shaft of the first motor is fixed with a first rotating shaft. The top end of the first rotating shaft is fixed with a rotating plate. Four rotating rods are fixed to the bottom end of the rotating plate. A hydraulic cylinder is fixed to the top end of the rotating plate. The telescopic end of the hydraulic cylinder is fixed with a moving rod. The bottom end of the moving rod is fixed with a connecting rod. The bottom end of the connecting rod is fixed with a thermometer.

[0009] Furthermore, the stirring mechanism includes a box body fixed to the top end of the inner wall of the installation box. A second motor is fixed to the bottom end of the box body. The output shaft of the second motor is fixed with a second rotating shaft. The top end of the second rotating shaft is fixed with a mounting plate. A magnetic block is fixed to the top end of the mounting plate. The stirring mechanism further includes a stirrer placed inside the mixing tank.

[0010] Furthermore, one end of the water inlet pipe away from the water pump is communicated with the right side of the mixing tank. One end of the return pipe away from the mixing tank is communicated with the left side of the water tank.

[0011] Furthermore, the top end of the water tank is open, and the heat dissipation plates extend to the outside of the bottom of the installation box.

[0012] Furthermore, an annular sliding groove is formed inside the bottom plate, and the bottom ends of the rotating rods slide in the annular sliding groove.

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] For this magnetic stirrer with a constant temperature function, by providing a heat dissipation mechanism on the installation box and the mixing tank, the mixing tank can be quickly cooled when it needs to be cooled, without waiting for the mixing tank to cool naturally, improving the cooling efficiency. By providing a temperature measurement mechanism at the top end of the bottom plate, the temperature inside the mixing tank can be measured by a thermometer, without manual measurement, which can avoid scalding the staff when measuring the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 Schematic structural diagram of the heat dissipation mechanism of the present utility model;

[0017] Figure 3 Schematic three-dimensional structural diagram of the heat dissipation mechanism of the present utility model;

[0018] Figure 4 Schematic structural diagram of the temperature measuring mechanism of the present utility model;

[0019] Figure 5 Schematic structural diagram of the stirring mechanism of the present utility model.

[0020] In the figure: 1 bottom plate, 2 support legs, 3 installation box, 4 stirring box, 500 heat dissipation mechanism, 501 water tank, 502 water outlet pipe, 503 water pump, 504 water inlet pipe, 505 first valve, 506 return pipe, 507 second valve, 508 heat dissipation plate, 509 fan, 600 stirring mechanism, 601 box body, 602 second motor, 603 second rotating shaft, 604 mounting plate, 605 magnetic block, 606 stirring element, 7 partition board, 800 temperature measuring mechanism, 801 first motor, 802 first rotating shaft, 803 rotating plate, 804 rotating rod, 805 hydraulic cylinder, 806 moving rod, 807 connecting rod, 808 thermometer, 9 heating plate. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , a magnetic stirrer with a constant temperature function in this embodiment includes a bottom plate 1. Four support legs 2 are fixed to the top end of the bottom plate 1. An installation box 3 is fixed to the top end of the support legs 2. A stirring box 4 is fixed to the top end of the installation box 3. A heat dissipation mechanism 500 is provided on the installation box 3 and the stirring box 4. A stirring mechanism 600 is provided at the top end inside the installation box 3. The stirring mechanism 600 includes a box body 601 fixed to the top end inner wall of the installation box 3. A second motor 602 is fixed to the bottom end of the box body 601. The output shaft of the second motor 602 is fixed with a second rotating shaft 603. The top end of the second rotating shaft 603 is fixed with a mounting plate 604. A magnetic block 605 is fixed to the top end of the mounting plate 604. The stirring mechanism 600 further includes a stirring element 606 placed inside the stirring box 4. A partition board 7 is fixed between the upper and lower ends of the inner wall of the stirring box 4. A temperature measuring mechanism 800 is provided at the top end of the bottom plate 1. Two heating plates 9 are fixed to the bottom end of the inner wall of the stirring box 4.

[0023] The heat dissipation mechanism 500 in this embodiment is used to dissipate heat and cool the bath solution, the stirring mechanism 600 is used to stir the reactants in the stirring tank 4, the temperature measuring mechanism 800 is used to measure the temperature inside the stirring tank 4, the partition plate 7 is used to isolate the bath solution from the reactants, and the heating plate 9 is used to heat the reactants in the stirring tank 4.

[0024] It should be noted that the second motor 602 can drive the second rotating shaft 603 to rotate. The second rotating shaft 603 is used to drive the mounting plate 604 and the magnetic block 605 to rotate. The rotation of the magnetic block 605 can drive the stirring bar 606 to rotate.

[0025] Please refer to Figures 1-3 , to facilitate the heat dissipation and cooling of the bath solution, the heat dissipation mechanism 500 in this embodiment includes a water tank 501 fixed to the bottom end of the inner wall of the installation box 3. The top of the water tank 501 is open. A water outlet pipe 502 is fixed to the right side of the water tank 501. One end of the water outlet pipe 502 away from the water tank 501 is fixed with a water pump 503. The output end of the water pump 503 is fixed with a water inlet pipe 504. One end of the water inlet pipe 504 away from the water pump 503 is connected to the right side of the stirring tank 4. A first valve 505 is fixed on the water inlet pipe 504. The heat dissipation mechanism 500 further includes a return pipe 506 fixed to the left side of the stirring tank 4. One end of the return pipe 506 away from the stirring tank 4 is connected to the left side of the water tank 501. A second valve 507 is fixed on the return pipe 506. The heat dissipation mechanism 500 further includes a plurality of heat dissipation plates 508 fixed to the bottom end of the water tank 501 and two fans 509 fixed to the left and right sides of the installation box 3. The heat dissipation plates 508 extend to the outside of the bottom of the installation box 3.

[0026] In the heat dissipation mechanism 500 of this embodiment, the water pump 503 can pump out the bath solution in the water tank 501. The water outlet pipe 502 and the water inlet pipe 504 are used to divert the bath solution. The return pipe 506 is used to make the heated bath solution flow back into the water tank 501. The heat dissipation plates 508 are used to export the heat inside the water tank 501 to the air, and the fans 509 are used to accelerate the heat dissipation of the water tank 501 and the bath solution.

[0027] It should be noted that the first valve 505 and the second valve 507 are respectively used for the bath solution to flow out from the water inlet pipe 504 and the return pipe 506.

[0028] Please refer to Figure 1 and Figure 4, To facilitate the measurement of the temperature inside the mixing tank 4, the temperature measuring mechanism 800 in this embodiment includes a first motor 801 at the top end of the bottom plate 1. A first rotating shaft 802 is fixed to the output shaft of the first motor 801. A rotating plate 803 is fixed to the top end of the first rotating shaft 802. Four rotating rods 804 are fixed to the bottom end of the rotating plate 803. An annular sliding groove is formed inside the bottom plate 1. The bottom ends of the rotating rods 804 slide in the annular sliding groove. A hydraulic cylinder 805 is fixed to the top end of the rotating plate 803. A moving rod 806 is fixed to the telescopic end of the hydraulic cylinder 805. A connecting rod 807 is fixed to the bottom end of the moving rod 806. A thermometer 808 is fixed to the bottom end of the connecting rod 807.

[0029] In the temperature measuring mechanism 800 of this embodiment, the first motor 801 can drive the first rotating shaft 802 to rotate. The first rotating shaft 802 can drive the rotating plate 803 to rotate. The rotating plate 803 is used to drive the hydraulic cylinder 805 and the thermometer 808 to rotate. The hydraulic cylinder 805 is used to adjust the height of the thermometer 808.

[0030] It should be noted that the rotating rods 804 can support the rotating plate 803 by sliding in the annular sliding groove. The moving rod 806 and the connecting rod 807 are used to facilitate the fixation of the thermometer 808.

[0031] The electrical components mentioned in the text are all electrically connected to the controller and the power supply. The control mode of the present invention is controlled by the controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of the power supply also belongs to the common knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail.

[0032] The working principle of the above embodiment is as follows:

[0033] The reactants in the stirring tank 4 are heated by the heating plate 9. The first motor 801 is started, and the output shaft of the first motor 801 rotates to drive the first rotating shaft 802 to rotate. The first rotating shaft 802 drives the rotating plate 803 to rotate, and the rotating plate 803 drives the hydraulic cylinder 805 to adjust the direction. The hydraulic cylinder 805 drives the moving rod 806, the connecting rod 807 and the thermometer 808 to adjust the direction. When the thermometer 808 is directly above the stirring tank 4, the first motor 801 is turned off, and the hydraulic cylinder 805 is started. The hydraulic cylinder 805 drives the thermometer 808 to move downward, and the thermometer 808 enters the stirring tank 4 to measure the temperature of the reactants. When it is necessary to cool the stirring tank 4, the second valve 507 is opened, and the bath solution in the stirring tank 4 flows into the water tank 501 through the return pipe 506 under the action of gravity. The fan 509 is started, and the fan 509 blows the heat of the bath solution to the outside through the air. At the same time, the heat dissipation plate 508 conducts the heat in the water tank 501 out to realize the cooling of the bath solution. After the cooling is completed, the second valve 507 is closed, the first valve 505 is opened, and the water pump 503 is started. The water pump 503 pumps the liquid in the water tank 501 into the water outlet pipe 502, and the bath solution then flows into the water inlet pipe 504 through the water outlet pipe 502 and finally flows into the stirring tank 4.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A magnetic stirrer with a constant temperature function, comprising a bottom plate (1), characterized in that: Four supporting legs (2) are fixed to the top of the bottom plate (1), a mounting box (3) is fixed to the top of the supporting legs (2), a stirring box (4) is fixed to the top of the mounting box (3), a heat dissipation mechanism (500) is provided on the mounting box (3) and the stirring box (4), a stirring mechanism (600) is provided at the top of the mounting box (3), a partition (7) is fixed between the upper and lower ends of the inner wall of the stirring box (4), a temperature measuring mechanism (800) is provided at the top of the bottom plate (1), and two heating plates (9) are fixed to the bottom of the inner wall of the stirring box (4); The heat dissipation mechanism (500) comprises a water tank (501) fixed to the bottom end of the inner wall of the installation box (3); a water outlet pipe (502) is fixed to the right side of the water tank (501); a water pump (503) is fixed to the end of the water outlet pipe (502) away from the water tank (501); a water inlet pipe (504) is fixed to the output end of the water pump (503); a first valve (505) is fixed to the water inlet pipe (504); the heat dissipation mechanism (500) further comprises a return pipe (506) fixed to the left side of the mixing box (4); a second valve (507) is fixed to the return pipe (506); the heat dissipation mechanism (500) further comprises a plurality of heat dissipation plates (508) fixed to the bottom end of the water tank (501) and two fans (509) fixed to the left and right sides of the installation box (3).

2. A magnetic stirrer with a constant temperature function according to claim 1, characterized in that: The temperature measuring mechanism (800) comprises a first motor (801) at the top of the base plate (1); a first rotating shaft (802) is fixed to the output shaft of the first motor (801); a rotating plate (803) is fixed to the top of the first rotating shaft (802); four rotating rods (804) are fixed to the bottom of the rotating plate (803); a hydraulic cylinder (805) is fixed to the top of the rotating plate (803); a moving rod (806) is fixed to the telescopic end of the hydraulic cylinder (805); a connecting rod (807) is fixed to the bottom of the moving rod (806); and a thermometer (808) is fixed to the bottom of the connecting rod (807).

3. The magnetic stirrer with a constant temperature function according to claim 1, characterized in that: The stirring mechanism (600) comprises a box body (601) fixed to the top of the inner wall of the installation box (3), a second motor (602) is fixed to the bottom of the box body (601), a second rotating shaft (603) is fixed to the output shaft of the second motor (602), a mounting plate (604) is fixed to the top of the second rotating shaft (603), a magnetic block (605) is fixed to the top of the mounting plate (604), and the stirring mechanism (600) further comprises a stirring rod (606) placed inside the stirring box (4).

4. The magnetic stirrer with a constant temperature function according to claim 1, characterized in that: One end of the water inlet pipe (504) away from the water pump (503) is connected to the right side of the mixing box (4), and one end of the return pipe (506) away from the mixing box (4) is connected to the left side of the water tank (501).

5. The magnetic stirrer with constant temperature function according to claim 1, characterized in that: The top end of the water tank (501) is open, and the heat sink (508) extends to the outside of the bottom of the installation box (3).

6. The magnetic stirrer with constant temperature function according to claim 2, characterized in that: An annular sliding groove is provided inside the bottom plate (1), and the bottom end of the rotating rod (804) slides in the annular sliding groove.

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