Magnetic stirring device with self-cleaning function

Abstract

The utility model discloses a magnetic stirring device with a self-cleaning function, and relates to the technical field of magnetic stirring equipment. The magnetic stirrer comprises a magnetic stirrer body, a supporting frame is fixedly connected to the back face of the magnetic stirrer body, a lifting mechanism is arranged in the supporting frame, stirring bars are arranged at the lifting ends of the lifting mechanism, a translation mechanism is arranged on the surface of the magnetic stirrer body, and a fixing mechanism is arranged at one end of the translation mechanism. A spraying cleaning mechanism is arranged at the other end of the translation mechanism. The stirrer is lifted to be separated from the beaker and then moved out of the beaker, then the spray cleaning mechanism moves to the position under the stirrer, the stirrer descends to enter the spray cleaning mechanism for cleaning, the stirrer is driven to rotate at a high speed to achieve dynamic washing, centrifugal spin-drying is combined, full-automatic cleaning of corrosive residues is completed, the stirrer does not need to be detached in the whole process, and the cleaning efficiency is improved. The risk of manual contact with a high-risk medium is avoided, and the safety and the operation efficiency of a corrosive experiment scene are remarkably improved.

Description

A magnetic stirring device with self-cleaning function Technical Field

[0001] This utility model belongs to the technical field of magnetic stirring equipment, and specifically relates to a magnetic stirring device with self-cleaning function. Background Technology

[0002] Magnetic stirring equipment is a laboratory or industrial device that uses a magnetic field to drive a stir bar to rotate, thereby achieving liquid mixing, heating, or reaction. Its core principle is to utilize magnetic coupling, eliminating the need for mechanical connections, and features good sealing and easy operation.

[0003] According to a magnetic stirring system disclosed in Chinese Patent Publication No. CN222324965U, a stirring rotor is slidably inserted into the inner cavity of a stirring vessel, with the bottom end of a limiting rod abutting against the bottom of the inner wall of the vessel. The stirring rotor is positioned above the bottom of the inner wall of the vessel. As the magnetic stirrer operates, the magnetic field of the stirring rotor drives it to rotate, causing the connecting rod and the fixing block to rotate within the inner cavity of the fixing seat. This allows the stirring rotor to rotate stably at the bottom of the inner cavity of the vessel, thus stirring the solution within the vessel.

[0004] However, the above-mentioned device limits the stirring rotor to ensure stable rotation at the bottom. After the stirring rotor has finished stirring the solution inside the stirring vessel, it needs to be taken out and then cleaned for reuse. However, in the prior art, when mixing corrosive liquids, the operator needs to directly contact the surface of the stirring rotor with corrosive liquid attached when disassembling and cleaning the stirring rotor, which poses a high risk of skin burns, chemical poisoning, etc. Summary of the Invention

[0005] To address the problem of inconvenience in cleaning corrosive liquids from the surface of the stirring rotor in related technologies, this invention proposes a magnetic stirring device with self-cleaning function to overcome the aforementioned technical problems in existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a magnetic stirring device with self-cleaning function, including a magnetic stirrer body, a support frame fixedly connected to the back of the magnetic stirrer body, a lifting mechanism inside the support frame, a stirring element at each lifting end of the lifting mechanism, a translation mechanism on the surface of the magnetic stirrer body, a fixing mechanism at one end of the translation mechanism, and a spray cleaning mechanism at the other end of the translation mechanism.

[0008] The lifting mechanism drives the stir bar to move out of the beaker. Then, the translation mechanism drives the spray cleaning mechanism to move directly below the stir bar. The lifting mechanism then drives the stir bar into the spray cleaning mechanism. The rinsing end of the spray cleaning mechanism rinses the stir bar. At the same time, the magnetic stirrer body, which operates synchronously, causes the stir bar to rotate. After rinsing, the stir bar is spun dry.

[0009] Furthermore, the lifting mechanism includes a motor, which is fixedly installed at one end of the support frame. The output shaft of the motor is fixedly connected to a lead screw, which is rotatably connected inside the support frame. A lifting plate is threaded onto the surface of the lead screw, and a lifting rod is fixedly connected to the surface of the lifting plate. One end of the lifting rod is rotatably connected to the stirrer.

[0010] Furthermore, the translation mechanism includes a translation frame, which is fixedly connected to the surface of the magnetic stirrer body. A second motor is fixedly installed at one end of the translation frame, and a second lead screw is fixedly connected to the output shaft of the second motor. The second lead screw is rotatably connected inside the translation frame, and a translation block is threadedly connected to the surface of the second lead screw. A translation plate is slidably connected to one side of the translation block.

[0011] Furthermore, a spring is fixedly connected to the surface of the translation plate, one end of the spring is fixedly connected to the inside of the translation block, a roller is fixedly connected to one end of the translation plate, a guide groove is provided on one side of the translation frame, and the roller is slidably connected in the guide groove.

[0012] Furthermore, the fixing mechanism includes a fixing frame, which is fixedly connected to one side of the translation plate. A bidirectional screw is rotatably connected to the surface of the fixing frame, and two clamping plates are threadedly connected to the surface of the bidirectional screw.

[0013] Furthermore, the spray cleaning mechanism includes a rinsing frame, which is fixedly connected to one side of the translation plate. Several nozzles are fixedly installed inside the rinsing frame. A cleaning pump is fixedly installed on one side of the rinsing frame. The discharge end of the cleaning pump is connected to several nozzles. The inlet end of the cleaning pump is fixedly connected to an inlet pipe. An outlet pipe is fixedly connected to the side of the rinsing frame.

[0014] Furthermore, small fans are fixedly installed on both sides of the rinsing frame.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model uses a lifting mechanism to drive the stir bar to rise and detach from the beaker. After the fixing mechanism unlocks and removes the beaker, the translation mechanism precisely positions the spray cleaning mechanism directly below the stir bar. The lifting mechanism lowers the stir bar into the spray cleaning mechanism, where the cleaning end sprays out cleaning liquid. At the same time, the magnetic stirrer body drives the stir bar to rotate at high speed to achieve dynamic rinsing. Combined with the dual effects of centrifugal drying and air drying, it completes the fully automatic cleaning of corrosive residues without disassembling the stir bar, avoiding the risk of manual contact with high-risk media and significantly improving the safety and operational efficiency of corrosive experimental scenarios.

[0017] 2. This utility model uses a rotating bidirectional screw to drive symmetrically distributed clamping plates to move synchronously in both directions along the bidirectional screw, thereby achieving adaptive clamping of beakers on the surface of the magnetic stirrer body. The arc-shaped clamping surface is compatible with beakers of different diameters. At the same time, the bidirectional screw structure ensures that the axis of the beaker is precisely aligned with the center of the magnetic drive, eliminating the instability of the stirrer vortex caused by container offset, making the high-speed stirring process stable and reliable, and suitable for the mixing needs of corrosive liquids.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a side view of the present invention.

[0022] Figure 3 is a cross-sectional structural diagram of this utility model;

[0023] Figure 4 is a partial structural schematic diagram of this utility model;

[0024] Figure 5 is a partial structural schematic diagram of the translation mechanism of this utility model;

[0025] Figure 6 is an enlarged structural schematic diagram of point A in Figure 3 of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Magnetic stirrer body; 2. Support frame; 3. Lifting mechanism; 301. Motor 1; 302. Lead screw 1; 303. Lifting plate; 304. Lifting rod; 4. Stirring element; 5. Translation mechanism; 501. Translation frame; 502. Motor 2; 503. Lead screw 2; 504. Translation block; 505. Translation plate; 506. Spring; 507. Roller; 508. Guide groove; 6. Fixing mechanism; 601. Fixing frame; 602. Bidirectional screw; 603. Clamping plate; 7. Spraying and cleaning mechanism; 701. Rinsing frame; 702. Nozzle; 703. Cleaning pump; 704. Feed pipe; 705. Discharge pipe; 706. Small fan. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Please refer to Figures 1-6. This utility model is a magnetic stirring device with self-cleaning function, including a magnetic stirrer body 1. A support frame 2 is fixedly connected to the back of the magnetic stirrer body 1. A lifting mechanism 3 is provided inside the support frame 2. A stirring element 4 is provided at each lifting end of the lifting mechanism 3. A translation mechanism 5 is provided on the surface of the magnetic stirrer body 1. A fixing mechanism 6 is provided at one end of the translation mechanism 5, and a spray cleaning mechanism 7 is provided at the other end of the translation mechanism 5.

[0031] The lifting mechanism 3 drives the stir bar 4 to move out of the beaker. Then, the translation mechanism 5 drives the spray cleaning mechanism 7 to move directly below the stir bar 4. The lifting mechanism 3 then drives the stir bar 4 into the spray cleaning mechanism 7. The rinsing end of the spray cleaning mechanism 7 then rinses the stir bar 4. At the same time, the magnetic stirrer body 1, which operates synchronously, makes the stir bar 4 rotate. After rinsing, the stir bar 4 is spun dry.

[0032] By placing the beaker on the surface of the magnetic stirrer body 1 and fixing the container with the fixing mechanism 6, the lifting end of the lifting mechanism 3 drives the stir bar 4 to move to the bottom of the beaker. The magnetic stirrer body 1 is then activated, causing the stir bar 4 to rotate and stir the corrosive liquid inside the beaker. After stirring, the lifting end of the lifting mechanism 3 drives the stir bar 4 out of the beaker, and then the fixing mechanism 6 is released to remove the beaker. Subsequently, the translation mechanism 5 slowly drives the spray cleaning mechanism 7 to move directly below the stir bar 4. The lowering mechanism 3 drives the stir bar 4 into the spray cleaning mechanism 7. The corrosive liquid on the surface of the stir bar 4 is rinsed through the rinsing end of the spray cleaning mechanism 7. At the same time, the magnetic stirrer body 1 drives the stir bar 4 to rotate, so that the stir bar 4 completes the rotation cleaning. After rinsing, the stir bar 4 rotates to dry, and the air blowing end in the spray cleaning mechanism 7 accelerates the drying. Then the stir bar 4 is removed, and the translation mechanism 5 is reset. The surface cleaning of the stir bar 4 can be completed without disassembling the stir bar 4. It is especially suitable for cleaning after the corrosive liquid has been stirred.

[0033] After the stirring bar 4 is lifted and detached from the beaker by the lifting mechanism 3, the fixing mechanism 6 unlocks and removes the beaker. Then, the translation mechanism 5 precisely positions the spray cleaning mechanism 7 directly below the stirring bar. The lifting mechanism 3 lowers the stirring bar 4 into the spray cleaning mechanism 7, and the cleaning end of the spray cleaning mechanism 7 sprays cleaning liquid. At the same time, the magnetic stirrer body 1 drives the stirring bar to rotate at high speed to achieve dynamic rinsing. Combined with the dual effects of centrifugal drying and air drying, the fully automatic cleaning of corrosive residues is completed. The stirring bar 4 does not need to be disassembled throughout the process, avoiding the risk of human contact with high-risk media and significantly improving the safety and operational efficiency of corrosive experimental scenarios.

[0034] In addition, in specific applications, the magnetic stirrer body 1 drives the rotating magnet through the built-in motor to generate an alternating magnetic field, which drives the magnetic stir bar 4 inside the beaker to rotate synchronously, realizing non-contact power transmission; during operation, after the user sets the speed, the magnetic coupling effect causes the stir bar 4 to continuously vortex in the liquid, uniformly mixing the solution.

[0035] In one embodiment, the lifting mechanism 3 includes a motor 301, which is fixedly installed at one end of the support frame 2. The output shaft of the motor 301 is fixedly connected to a lead screw 302, which is rotatably connected inside the support frame 2. A lifting plate 303 is threadedly connected to the surface of the lead screw 302, and a lifting rod 304 is fixedly connected to the surface of the lifting plate 303. One end of the lifting rod 304 is rotatably connected to the stirring element 4.

[0036] Start motor 301, which drives lead screw 302 to rotate. Lead screw 302 drives lifting plate 303 to slide inside support frame 2, which in turn drives lifting rod 304 and stirrer 4 to move out of beaker. Lifting rod 304 is made of corrosion-resistant material.

[0037] In one embodiment, the translation mechanism 5 includes a translation frame 501, which is fixedly connected to the surface of the magnetic stirrer body 1. A second motor 502 is fixedly installed at one end of the translation frame 501. A second lead screw 503 is fixedly connected to the output shaft of the second motor 502. The second lead screw 503 is rotatably connected inside the translation frame 501. A translation block 504 is threadedly connected to the surface of the second lead screw 503. A translation plate 505 is slidably connected to one side of the translation block 504. A spring 506 is fixedly connected to the surface of the translation plate 505. One end of the spring 506 is fixedly connected to the inside of the translation block 504. A roller 507 is fixedly connected to one end of the translation plate 505. A guide groove 508 is opened on one side of the translation frame 501, and the roller 507 is slidably connected in the guide groove 508.

[0038] Start motor 502, which drives lead screw 503 to rotate. Lead screw 503 drives translation block 504 to slide inside translation frame 501. Translation block 504 drives translation plate 505 to move. As translation plate 505 moves, it drives roller 507 to slide in guide groove 508. As translation plate 505 moves, it slides inside translation block 504 according to the change of guide groove 508. This allows spray cleaning mechanism 7 connected to translation plate 505 to move along the movement trajectory of guide groove 508. Spray cleaning mechanism 7 first moves upward and then moves horizontally. When it reaches directly below stir bar 4, spray cleaning mechanism 7 slides downward to the surface of magnetic stirrer body 1. Spring 506 buffers the force of spray cleaning mechanism 7 contacting the surface of magnetic stirrer body 1 to prevent scratches on the surface of magnetic stirrer body 1 caused by direct horizontal movement of spray cleaning mechanism 7.

[0039] In one embodiment, the fixing mechanism 6 includes a fixing frame 601, which is fixedly connected to one side of the translation plate 505. A bidirectional screw 602 is rotatably connected to the surface of the fixing frame 601, and two clamping plates 603 are threadedly connected to the surface of the bidirectional screw 602.

[0040] Rotating the bidirectional screw 602 causes the two clamping plates 603 to clamp and fix the beaker on the surface of the magnetic stirrer body 1, making it easier to fix the beaker. When the translation plate 505 moves, it will drive the fixing frame 601 to move together.

[0041] In one embodiment, the spray cleaning mechanism 7 includes a rinsing frame 701, which is fixedly connected to one side of the translation plate 505. Several nozzles 702 are fixedly installed inside the rinsing frame 701. A cleaning pump 703 is fixedly installed on one side of the rinsing frame 701. The discharge end of the cleaning pump 703 is connected to several nozzles 702. The feed end of the cleaning pump 703 is fixedly connected to a feed pipe 704. A discharge pipe 705 is fixedly connected to the side of the rinsing frame 701. Small fans 706 are fixedly installed on both sides of the rinsing frame 701.

[0042] The rinsing frame 701 is moved to the underside of the stirrer 4 by the translation plate 505. The lifting mechanism 3 drives the stirrer 4 into the rinsing frame 701, so that the stirrer 4 stops on one side of the nozzle 702. The feed pipe 704 is connected to the cleaning liquid tank, and the discharge pipe 705 is connected to the waste liquid tank. The cleaning pump 703 is started to drive the cleaning liquid to several nozzles 702. The stirrer 4 is rinsed through the nozzles 702. At the same time, the magnetic stirrer body 1 drives the stirrer 4 to rotate, realizing dynamic rinsing. After rinsing, the lifting mechanism 3 drives the stirrer 4 to the small fan 706. The small fan 706 is started to dry the stirrer 4 a second time, which is convenient for the next solution stirring. The rinsing waste liquid is transported to the waste liquid tank through the discharge pipe 705 for centralized treatment.

[0043] Through the above technical solution, 1. Motor 301 drives screw 302 to rotate, causing screw 302 to drive lifting plate 303 to slide inside support frame 2, causing lifting rod 304 and stirrer 4 to move out of beaker. Motor 502 is started, causing screw 503 to rotate, causing sliding block 504 to slide inside sliding frame 501, causing sliding block 504 to move sliding plate 505. While moving, sliding plate 505 drives roller 507 to slide in guide groove 508, so that when sliding, rinsing frame 701 is brought directly below stirrer 4. Lifting mechanism 3 drives stirrer 4 into rinsing frame 701, so that stirrer 4 stops at nozzle. On one side of 702, the feed pipe 704 is connected to the cleaning liquid tank, and the discharge pipe 705 is connected to the waste liquid tank. The cleaning pump 703 is started to drive the cleaning liquid to several nozzles 702. The nozzles 702 rinse the stir bar 4. At the same time, the magnetic stirrer body 1 drives the stir bar 4 to rotate, realizing dynamic rinsing. After rinsing, the lifting mechanism 3 drives the stir bar 4 to the small fan 706. The small fan 706 is started to dry the stir bar 4 a second time, which is convenient for the next solution stirring. The rinsing waste liquid is transported to the waste liquid tank through the discharge pipe 705 for centralized treatment, completing the fully automatic cleaning of corrosive residues. The stir bar 4 does not need to be disassembled throughout the process, avoiding the risk of human contact with high-risk media and significantly improving the safety and operation efficiency of corrosive experimental scenarios.

[0044] 2. By rotating the bidirectional screw 602, the symmetrically distributed clamping plates 603 are driven to move synchronously in both directions along the bidirectional screw 602, realizing adaptive clamping of the beaker on the surface of the magnetic stirrer body 1. The arc-shaped clamping surface is compatible with beakers of different diameters. At the same time, the structure of the bidirectional screw 602 ensures that the axis of the beaker is precisely aligned with the center of the magnetic drive, eliminating the instability of the stir bar 4 vortex caused by container offset, making the high-speed stirring process stable and reliable, and adapting to the mixing needs of highly corrosive liquids.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A magnetic stirring device with self-cleaning function, comprising a magnetic stirrer body (1), characterized in that, A support frame (2) is fixedly connected to the back of the magnetic stirrer body (1). A lifting mechanism (3) is provided inside the support frame (2). A stirrer (4) is provided at the lifting end of the lifting mechanism (3). A translation mechanism (5) is provided on the surface of the magnetic stirrer body (1). A fixing mechanism (6) is provided at one end of the translation mechanism (5). A spray cleaning mechanism (7) is provided at the other end of the translation mechanism (5). The stirrer (4) is driven to move out of the beaker by the lifting end of the lifting mechanism (3). Then the translation mechanism (5) drives the spray cleaning mechanism (7) to move directly below the stirrer (4). The stirrer (4) is then driven to enter the spray cleaning mechanism (7) by the lifting mechanism (3). Then the rinsing end of the spray cleaning mechanism (7) rinses the stirrer (4). At the same time, the magnetic stirrer body (1) runs synchronously and makes the stirrer (4) rotate. After rinsing, the stirrer (4) is spun dry.

2. The magnetic stirring device with self-cleaning function according to claim 1, characterized in that, The lifting mechanism (3) includes a motor (301), which is fixedly installed at one end of the support frame (2). The output shaft of the motor (301) is fixedly connected to a lead screw (302), which is rotatably connected inside the support frame (2). A lifting plate (303) is threadedly connected to the surface of the lead screw (302), and a lifting rod (304) is fixedly connected to the surface of the lifting plate (303). One end of the lifting rod (304) is rotatably connected to the stirrer (4).

3. A magnetic stirring device with self-cleaning function according to claim 2, characterized in that, The translation mechanism (5) includes a translation frame (501), which is fixedly connected to the surface of the magnetic stirrer body (1). A motor (502) is fixedly installed at one end of the translation frame (501). A lead screw (503) is fixedly connected to the output shaft of the motor (502). The lead screw (503) is rotatably connected inside the translation frame (501). A translation block (504) is threadedly connected to the surface of the lead screw (503). A translation plate (505) is slidably connected to one side of the translation block (504).

4. A magnetic stirring device with self-cleaning function according to claim 3, characterized in that, A spring (506) is fixedly connected to the surface of the translation plate (505). One end of the spring (506) is fixedly connected to the inside of the translation block (504). A roller (507) is fixedly connected to one end of the translation plate (505). A guide groove (508) is provided on one side of the translation frame (501). The roller (507) is slidably connected in the guide groove (508).

5. A magnetic stirring device with self-cleaning function according to claim 3, characterized in that, The fixing mechanism (6) includes a fixing frame (601), which is fixedly connected to one side of the translation plate (505). A bidirectional screw (602) is rotatably connected to the surface of the fixing frame (601), and two clamping plates (603) are threadedly connected to the surface of the bidirectional screw (602).

6. A magnetic stirring device with self-cleaning function according to claim 4, characterized in that, The spray cleaning mechanism (7) includes a rinsing frame (701), which is fixedly connected to one side of the translation plate (505). Several nozzles (702) are fixedly installed inside the rinsing frame (701). A cleaning pump (703) is fixedly installed on one side of the rinsing frame (701). The discharge end of the cleaning pump (703) is connected to several nozzles (702). The feed end of the cleaning pump (703) is fixedly connected to a feed pipe (704). The side of the rinsing frame (701) is fixedly connected to a discharge pipe (705).

7. A magnetic stirring device with self-cleaning function according to claim 6, characterized in that, Small fans (706) are fixedly installed on both sides of the flushing frame (701).

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