A multi-station magnetic stirrer

Abstract

The utility model discloses a kind of multi-station magnetic stirrers, including base and upper panel, a plurality of beaker grooves are equipped on upper panel, the inside of base is equipped with a plurality of speed regulating motor, the rotating shaft of each speed regulating motor is fixed with a strong magnet. The back of upper panel is set with annular cover in the position corresponding to beaker groove, one heating sheet is set in each annular cover, each strong magnet is set in the cavity of corresponding annular cover, gap is left between strong magnet and heating sheet. A plurality of slightly grooves are set on upper panel, the lower part of each slightly groove is correspondingly set speed regulating motor to drive strong magnet to rotate, cooperate with magnetic rotor in experimental beaker to carry out stirring work to liquid in beaker, and a plurality of stations are suitable for heating and stirring work of a plurality of experimental samples, and simultaneously, each speed regulating motor is correspondingly connected with a speed regulating switch, the speed of each speed regulating motor can be controlled, and different sample stirring requirements are suitable.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic stirrers for laboratory use, specifically a multi-station magnetic stirrer. Background Technology

[0002] A magnetic stirrer is a laboratory instrument used for mixing liquids, primarily for stirring or simultaneously heating and stirring low-viscosity liquids or solid-liquid mixtures. Its basic principle is based on the repulsion and attraction of like poles in a magnetic field. The magnetic field drives a magnetic stir bar placed in a container to rotate in a circular motion, thus achieving the purpose of stirring the liquid. Combined with a heating and temperature control system, the sample temperature can be heated and controlled according to specific experimental requirements, maintaining the necessary temperature conditions to ensure the liquid is mixed to the required experimental consistency.

[0003] However, existing magnetic stirrers typically only have one heating station, making it impossible to heat and stir multiple samples simultaneously. This necessitates waiting for the previous sample to finish stirring before starting the next, significantly slowing down the experimental process. Summary of the Invention

[0004] (a) Technical problems to be solved The technical problem this invention aims to solve is that traditional magnetic stirrers typically have only one heating station, making it impossible to simultaneously heat and stir multiple samples. This necessitates waiting for the previous sample to finish stirring before starting the next, significantly slowing down the experimental process.

[0005] (II) Technical Solution To solve the above problems, this utility model provides the following technical solution: A multi-station magnetic stirrer includes a base and a top panel. The top panel has multiple beaker recesses that are evenly distributed on the top panel. The base has multiple speed-regulating motors inside, and the positions of the speed-regulating motors correspond to the beaker recesses. A strong magnet is fixed on the shaft of each speed-regulating motor. An annular cover is provided on the back of the upper panel at a position corresponding to the groove of the beaker. Multiple annular covers are provided, each corresponding to the position of the groove of the beaker. A heating element is provided in each annular cover. The side of the heating element is fixedly connected to the inner wall of the annular cover, and the upper end face of the heating element is fixedly connected to the back of the upper panel. Each strong magnet is provided in the cavity of the corresponding annular cover, and a gap is left between the upper end face of the strong magnet and the lower end face of the heating element. A control circuit board is also provided on the back of the top panel.

[0006] Furthermore, a speed control switch is provided on one side of the upper panel. There are multiple speed control switches, and their number is the same as the number of speed control motors. Each speed control switch is electrically connected to one of the control circuit boards.

[0007] Furthermore, the top plate also has multiple heating switches, the number of which is the same as the number of heating elements, and each heating switch is electrically connected to a control circuit board.

[0008] Furthermore, the control circuit board is electrically connected to the speed-regulating motor and the heating element.

[0009] Furthermore, the top plate is also provided with a connecting ring for mounting a temperature sensor bracket.

[0010] Furthermore, a heat dissipation vent is provided on one side of the base.

[0011] Furthermore, each of the speed-regulating motors is provided with a motor vibration damping plate at its bottom. One end of the motor vibration damping plate is fixedly connected to the bottom of the speed-regulating motor, and the other end is fixedly connected to the bottom end face of the base. The motor vibration damping plate is made of rubber.

[0012] Furthermore, the lower end face of the base is provided with four shock-absorbing support feet, which are connected to the base by threaded connection.

[0013] (III) Beneficial Effects The beneficial effects of this utility model are: Multiple small grooves are set on the top plate, and each groove is equipped with a speed-regulating motor to drive a strong magnet to rotate. This motor works in conjunction with the magnetic rotor in the experimental beaker to stir the liquid in the beaker. The multiple stations are suitable for heating and stirring multiple experimental samples. At the same time, each speed-regulating motor is connected to a speed control switch, which can control the speed of each motor to meet the stirring requirements of different samples. Attached image description: Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the present invention from another angle; Figure 3 This is a new sectional view of the utility model; Figure 4 This is a schematic diagram showing the location of the control circuit board of this utility model.

[0014] The markings in the diagram are: 1-base, 2-top panel, 3-beaker recess, 4-speed control motor, 5-strong magnet, 6-ring cover, 7-heating plate, 8-control circuit board, 9-speed control switch, 10-heating switch, 11-connecting ring, 12-heat dissipation vent, 13-motor vibration damping plate, 14-vibration damping support foot. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Please see Figures 1-4 The diagram illustrates a multi-station magnetic stirrer, comprising a base 1 and an upper panel 2. The upper panel 2 has multiple beaker recesses 3 evenly distributed across it. During actual experiments, a beaker containing the experimental sample liquid is placed into one of the beaker recesses 3, and the magnetic rotor is then placed inside. Compared to a traditional flat plate, the beaker recesses 3 in this design provide some degree of restraint on the sample liquid, improving the stability of the beaker during stirring.

[0018] The base 1 is equipped with multiple speed-regulating motors 4, and the positions of the speed-regulating motors 4 correspond to the grooves 3 of the beaker. Each speed-regulating motor 4 has a strong magnet 5 fixed on its rotating shaft. The speed-regulating motor 4 drives the strong magnet 5 to rotate, and the strong magnet 5 drives the magnetic rotor to rotate at high speed through magnetic attraction, thereby stirring the experimental sample liquid in the beaker.

[0019] An annular cover 6 is provided on the back of the upper panel 2, corresponding to the position of the beaker recess 3. Multiple annular covers 6 are provided, each corresponding to the position of the beaker recess 3. A heating element 7 is provided in each annular cover 6. The side of the heating element 7 is fixedly connected to the inner wall of the annular cover 6, and the upper end face of the heating element 7 is fixedly connected to the back of the upper panel 2. The heating element 7 is used to heat the experimental sample liquid in the beaker.

[0020] To prevent the strong magnets 5 from contacting the heating element 7 during rotation, each strong magnet 5 is housed within the corresponding annular cover 6. A gap is maintained between the upper surface of the strong magnet 5 and the lower surface of the heating element 7 to further prevent contact. A control circuit board 8 is also located on the back of the upper panel 2 to control the operation of the speed-regulating motor 4 and the heating element 7 within the device.

[0021] Specifically, a speed control switch 9 is provided on one side of the upper panel 2. There are multiple speed control switches 9, and their number is the same as the number of speed control motors 4. Each speed control switch 9 is electrically connected to a speed control circuit board 8.

[0022] In this embodiment, the speed control switch 9 is used to control the speed control and start / stop control of the speed control motor 4. Each speed control switch 9 can control one speed control motor 4 individually, so one or more speed control motors 4 can be selectively turned on. This is suitable for heating and stirring one experimental sample liquid or heating and stirring multiple experimental sample liquids at the same time. Different stirring speeds and heating temperatures can be set for different experimental sample liquids.

[0023] Specifically, there are heating switches 10 on the upper panel 2. There are multiple heating switches 10, and their number is the same as the number of heating elements 7. Each heating switch 10 is electrically connected to a control circuit board 8.

[0024] In this embodiment, each heating switch 10 can control a corresponding heating element 7 to work. When needed, a heating element 7 can be selectively turned on or multiple heating elements 7 can be turned on simultaneously to heat the experimental sample liquid.

[0025] Specifically, the control circuit board 8 is electrically connected to the speed-regulating motor 4 and the heating element 7. The upper panel 2 is also provided with a connecting ring 11 for mounting a temperature sensor bracket. A heat dissipation vent 12 is also provided on one side of the base 1 to dissipate heat from inside the base 1.

[0026] Specifically, each speed-regulating motor 4 has a motor damping plate 13 at its bottom. One end of the motor damping plate 13 is fixedly connected to the bottom of the speed-regulating motor 4, and the other end is fixedly connected to the bottom surface of the base 1. The motor damping plate 13 is made of rubber. The lower surface of the base 1 is provided with four shock-absorbing support feet 14, which are connected to the base 1 by threaded connection.

[0027] In this embodiment, the installation of rubber motor damping pads 13 reduces the transmission of vibrations generated by the speed-regulating motor 4 during operation, thereby reducing the noise generated during equipment operation.

[0028] Working principle: In actual use, the experimenter places the beaker containing the experimental sample liquid into the beaker groove 3 on the upper panel 2, and places a magnetic rotor of appropriate size in the beaker. Here, depending on the amount of experimental sample liquid that needs to be stirred, one beaker can be placed in one beaker groove 3, or multiple beakers can be placed in multiple different beaker grooves 3.

[0029] After placing the beaker, start the equipment. The speed-regulating motor 4 drives the strong magnet 5 to rotate. The strong magnet 5 drives the magnetic rotor to rotate at high speed through magnetic attraction, thereby stirring the experimental sample liquid in the beaker. Similarly, the heating switch 10 is used to activate the heating element 7 to heat the experimental sample liquid in the beaker.

[0030] The embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station magnetic stirrer, characterized in that: The device includes a base (1) and an upper panel (2). The upper panel (2) is provided with a beaker groove (3). There are multiple beaker grooves (3) and they are evenly distributed on the upper panel (2). The base (1) is provided with multiple speed-regulating motors (4). The positions of the speed-regulating motors (4) are corresponding to the beaker grooves (3). A strong magnet (5) is fixed on the shaft of each speed-regulating motor (4). An annular cover (6) is provided on the back of the upper panel (2) at a position corresponding to the beaker groove (3). Multiple annular covers (6) are provided, each corresponding to the position of the beaker groove (3). A heating element (7) is provided in each annular cover (6). The side of the heating element (7) is fixedly connected to the inner wall of the annular cover (6). The upper end face of the heating element (7) is fixedly connected to the back of the upper panel (2). Each strong magnet (5) is provided in the cavity of the corresponding annular cover (6), and a gap is left between the upper end face of the strong magnet (5) and the lower end face of the heating element (7). The back of the upper panel (2) is also provided with a control circuit board (8).

2. The multi-station magnetic stirrer according to claim 1, characterized in that: A speed control switch (9) is provided on one side of the upper panel (2). There are multiple speed control switches (9) and their number is the same as the number of speed control motors (4). Each speed control switch (9) is electrically connected to a control circuit board (8).

3. A multi-station magnetic stirrer according to claim 1, characterized in that: The upper panel (2) also has heating switches (10), and there are multiple heating switches (10) and their number is the same as the number of heating elements (7). Each heating switch (10) is electrically connected to a control circuit board (8).

4. A multi-station magnetic stirrer according to claim 1, characterized in that: The control circuit board (8) is electrically connected to the speed-regulating motor (4) and the heating element (7).

5. A multi-station magnetic stirrer according to claim 1, characterized in that: The upper panel (2) is also provided with a connecting ring (11) for mounting a temperature sensor bracket.

6. A multi-station magnetic stirrer according to claim 1, characterized in that: The base (1) is also provided with a heat dissipation vent (12) on one side.

7. A multi-station magnetic stirrer according to claim 1, characterized in that: Each of the speed-regulating motors (4) has a motor damping plate (13) at its bottom. One end of the motor damping plate (13) is fixedly connected to the bottom of the speed-regulating motor (4), and the other end is fixedly connected to the bottom surface of the base (1). The motor damping plate (13) is made of rubber.

8. A multi-station magnetic stirrer according to claim 1, characterized in that: The lower end face of the base (1) is provided with four shock-absorbing support feet (14), which are connected to the base (1) by threaded connection.

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