Magnetic stirrer

Abstract

The utility model discloses a magnetic stirrer which comprises a magnetic stirrer and a heating device, the heating device is arranged on the magnetic stirrer, a limiting baffle ring is fixedly mounted at the upper end of the magnetic stirrer, a beaker is placed at the upper end of the magnetic stirrer, and the beaker is located in the limiting baffle ring. According to the upgraded magnetic field generating device of the magnetic stirrer, more efficient permanent magnet material or electromagnetic design is adopted, so that a stronger magnetic field and more stable magnetic force are provided, the stirrer can stably rotate in a container at a high speed, and the stirring plates are uniformly and fixedly arranged at the outer side end of the stirrer, so that the stirring efficiency is improved. And a solution in the beaker can be quickly mixed.

Description

Technical Field

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

[0002] A magnetic stirrer is a laboratory instrument for liquid mixing, mainly used for stirring or heating and stirring low-viscosity liquids or solid-liquid mixtures at the same time. Its basic principle is to use the characteristics of magnetic field that like charges repel each other and opposite charges attract each other, and to drive the magnetic stirrer placed in the container to rotate in a circle through the magnetic field, so as to achieve the purpose of stirring the liquid. However, the existing magnetic stirrer has low stirring efficiency, and cannot heat the solution inside the beaker in a timely and rapid manner, cannot accurately control the heating temperature, and is easy to move during the stirring process of the beaker, causing the beaker to leave the designated working area, causing the stirring to be interrupted or the beaker to fall, so a magnetic stirrer is urgently needed to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of the utility model is to provide a magnetic stirrer to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a magnetic stirrer, comprising a magnetic stirrer and a heating device, wherein the heating device is arranged on the magnetic stirrer, a limited spacer ring is fixedly installed on the upper end of the magnetic stirrer, a beaker is placed on the upper end of the magnetic stirrer, and the beaker is located inside the limited spacer ring;

[0005] A stirring bar is placed inside the beaker, and a stirring plate is evenly fixedly mounted on the stirring bar.

[0006] Preferably, the heating device includes a rotating adjustment plate, a support column, a fixed support plate, a motor, an electric heating rod, a fastening threaded column, a fixing mounting plate, a fixing connecting column and a terminal, the bottom end of the support column is rotatably connected to the fixed support plate, the motor is fixedly mounted on the fixed support plate, and the driving end of the motor is fixedly connected to the bottom end of the support column, the rotating adjustment plate is fixedly connected to the upper end of the support column, the fixing mounting plate is fixedly connected to the rotating adjustment plate, the electric heating rods are evenly distributed, the fixing connecting column is fixedly connected to the upper end of the electric heating rods, the fixing connecting column is slidably arranged inside the fixing mounting plate, the terminal is fixedly connected to the upper end of the fixing connecting column, the fastening threaded column is evenly threaded and rotatably inserted into the fixing mounting plate, and the front end of the fastening threaded column is in extrusion contact with the outer wall of the fixing connecting column.

[0007] Preferably, there are five electric heating rods.

[0008] Preferably, a temperature sensor is fixedly connected to the bottom end of the electric heating rod.

[0009] Preferably, the fixed support plate is fixedly connected to the magnetic stirrer.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model discloses an upgraded magnetic field generating device of the magnetic stirrer, adopts more efficient permanent magnetic material or electromagnetic design, so as to provide a stronger magnetic field and a more stable magnetic force, ensure that the stirrer can rotate stably and at a high speed in the container, and the outer end of the stirrer is evenly and fixedly provided with a stirring plate, so that the solution inside the beaker can be quickly stirred and mixed, and in the stirring process, according to the need for heating, the number of electric heating rods can be selectively used, so that a specified number of electric heating rods after power-on heating are inserted into the inside of the beaker, so that the heating is fast, and the heating temperature can be accurately detected by the temperature sensor, so that the inside of the beaker is heated quickly and the heating temperature is accurately controlled, and the limit baffle ring can be provided so that the beaker is always located in the working area of ​​the upper end of the magnetic stirrer during the stirring process, and the beaker is stable and safe during the stirring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the stirring bar of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the heating device of the utility model.

[0015] In the figure: 1-heating device, 2-beaker, 3-limiting baffle ring, 4-magnetic stirrer, 5-stirring bar, 6-stirring plate, 7-rotating adjustment plate, 8-support column, 9-fixed support plate, 10-motor, 11-temperature sensor, 12-electric heating rod, 13-fastening threaded column, 14-fixed mounting plate, 15-fixed connecting column, 16-connecting terminal. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides an embodiment: a magnetic stirrer, comprising a magnetic stirrer 4 and a heating device 1, wherein the heating device 1 is arranged on the magnetic stirrer 4, a limited spacer ring 3 is fixedly installed on the upper end of the magnetic stirrer 4, a beaker 2 is placed on the upper end of the magnetic stirrer 4, and the beaker 2 is located inside the limited spacer ring 3;

[0018] The stirring bar 5 is placed inside the beaker 2 , and a stirring plate 6 is evenly fixedly mounted on the stirring bar 5 .

[0019] The heating device 1 includes a rotating adjustment plate 7, a supporting column 8, a fixed supporting plate 9, a motor 10, an electric heating rod 12, a fastening threaded column 13, a fixing mounting plate 14, a fixing connecting column 15 and a terminal 16. The bottom end of the supporting column 8 is rotatably connected to the fixed supporting plate 9, the motor 10 is fixedly mounted on the fixed supporting plate 9, and the driving end of the motor 10 is fixedly connected to the bottom end of the supporting column 8, the rotating adjustment plate 7 is fixedly connected to the upper end of the supporting column 8, the fixing mounting plate 14 is fixedly connected to the rotating adjustment plate 7, the electric heating rods 12 are evenly distributed, the fixing connecting column 15 is fixedly connected to the upper end of the electric heating rod 12, the fixing connecting column 15 is slidably arranged inside the fixing mounting plate 14, the terminal 16 is fixedly connected to the upper end of the fixing connecting column 15, the fastening threaded column 13 is evenly threadedly rotated and plugged into the fixing mounting plate 14, and the front end of the fastening threaded column 13 is squeezed and contacted with the outer wall of the fixing connecting column 15, and the rotation of the supporting column 8 can be controlled by the motor 10 with the help of a reducer.

[0020] There are five electric heating rods 12, and the heating efficiency can be improved by selectively using the number of them.

[0021] The bottom end of the electric heating rod 12 is fixedly connected with a temperature sensor 11, which can detect the temperature in real time.

[0022] The fixed support plate 9 is fixedly connected to the magnetic stirrer 4 to play a role of fixed connection.

[0023] Working principle: During use, the magnetic stirrer 4 upgrades the magnetic field generating device and adopts more efficient permanent magnetic materials or electromagnetic design to provide a stronger magnetic field and a more stable magnetic force, ensuring that the stirrer 5 can rotate stably and at high speed in the container, and the outer end of the stirrer 5 is evenly fixed with a stirring plate 6, so that the solution inside the beaker 2 can be quickly mixed and processed, and during the stirring process, according to the needs of heating, the number of electric heating rods 12 can be selectively used, so that the specified number of electric heating rods 12 after power-on heating are inserted into the inside of the beaker 2, so that the heating is fast, and the temperature sensor 11 can accurately detect the heating temperature, so that the inside of the beaker 2 is heated quickly and the heating temperature is accurately controlled, and the limit baffle ring 3 is set to ensure that the beaker 2 is always located in the working area of ​​the upper end of the magnetic stirrer 4 during the stirring process, and the beaker 2 is stable and safe during the stirring process.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic stirrer, comprising a magnetic stirrer (4), characterized in that: A heating device (1), wherein the heating device (1) is arranged on the magnetic stirrer (4), a limit baffle ring (3) is fixedly mounted on the upper end of the magnetic stirrer (4), a beaker holder (2) is placed on the upper end of the magnetic stirrer (4), and the beaker holder (2) is located inside the limit baffle ring (3); A stirring bar (5), the stirring bar (5) is placed inside the beaker (2), a stirring plate (6) is evenly fixedly installed on the stirring bar (5), the heating device (1) comprises a rotating adjustment plate (7), a supporting column (8), a fixed supporting plate (9), a motor (10), an electric heating rod (12), a fastening threaded column (13), a clamping mounting plate (14), a clamping connecting column (15) and a terminal (16), the bottom end of the supporting column (8) is rotatably clamped on the fixed supporting plate (9), the motor (10) is fixedly installed on the fixed supporting plate (9), and the driving end of the motor (10) is fixedly connected to the bottom end of the supporting column (8). The rotating adjustment plate (7) is fixedly connected to the upper end of the supporting column (8), the fixing mounting plate (14) is fixedly connected to the rotating adjustment plate (7), the electric heating rods (12) are evenly distributed, the fixing connecting column (15) is fixedly connected to the upper end of the electric heating rod (12), the fixing connecting column (15) is slidably arranged inside the fixing mounting plate (14), the wiring terminal (16) is fixedly connected to the upper end of the fixing connecting column (15), the fastening thread column (13) is evenly threadedly rotated and plugged into the fixing mounting plate (14), and the front end of the fastening thread column (13) is in extrusion contact with the outer wall of the fixing connecting column (15).

2. A magnetic stirrer according to claim 1, characterized in that: The electric heating rods (12) are provided with five.

3. A magnetic stirrer according to claim 2, characterized in that: The bottom end of the electric heating rod (12) is fixedly connected to a temperature sensor (11).

4. A magnetic stirrer according to claim 3, characterized in that: The fixed support plate (9) is fixedly connected to the magnetic stirrer (4).

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