Limitable magnetic stirrer

Abstract

The utility model belongs to the technical field of magnetic stirrers, and particularly relates to a limitable magnetic stirrer which comprises a stirrer body and a limiting mechanism which is oppositely arranged on the stirrer body and is used for limiting a stirring cup together, the limiting mechanism comprises a supporting plate, a moving part, a spring, a connecting frame, a connecting plate, an adjusting bolt, a limiting plate, a fixing sleeve, a locking bolt and a limiting arm, the moving part penetrates through the supporting plate, and the connecting frame is fixed to the end of the moving part. Due to the fact that the sizes of the stirring cups are different, in order to guarantee that the limiting mechanism can normally limit the stirring cups, the positions of the limiting arms at the two ends of the fixing sleeve can be adjusted, more limiting arms can be pulled out of the fixing sleeve, or the limiting arms can be pushed back into the fixing sleeve, and therefore the stirring cups can be fixed. And then the locking bolt is rotated to limit the relative position of the limiting arm and the fixing sleeve, and adjustment can be carried out according to the sizes of different stirring cups, so that the stirring cups can be conveniently limited.

Description

Technical Field

[0001] This utility model relates to the field of magnetic stirrer technology, and in particular to a limitable 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, most existing magnetic stirrers do not have a fixing device to secure the stirring container. This often causes the stirring container to shift position during the stirring process, which affects the stirring effect and reduces the stirring efficiency of the magnetic stirrer. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a limitable magnetic stirrer to solve the problems mentioned in the background section.

[0005] A limitable magnetic stirrer includes a stirrer body and a limiting mechanism disposed on the stirrer body to limit the stirring cup. The limiting mechanism includes a support plate, a movable part, a spring, a connecting frame, a connecting plate, an adjusting bolt, a limiting plate, a fixing sleeve, a locking bolt, and limiting arms. The movable part passes through the support plate. The connecting frame is fixed to the end of the movable part. The spring is installed between the connecting frame and the support plate. The connecting plate is fixed to the opening of the connecting frame. The limiting plate can be adjusted and rotated on the connecting plate by the adjusting bolt. There are two fixing sleeves, which are disposed opposite each other at the upper and lower ends of the connecting plate. The limiting arms are movably embedded at both ends of the fixing sleeves and locked by the locking bolts.

[0006] By adopting the above technical solution, adjustments can be made according to the size of different mixing cups to facilitate their positioning.

[0007] The support plates are two spaced apart and vertically fixed to the stirrer body, and the moving part is set vertically to the support plates.

[0008] By adopting the above technical solution, it is possible to accurately position the mixing cup.

[0009] The movable part consists of two round rods and a connecting block. The two round rods are vertically aligned and horizontally arranged. The connecting block is fixed to one end of the two round rods. Limiting holes are also provided on the two round rods.

[0010] By adopting the above technical solution, the moving part can be pulled and limited to facilitate the picking up and placing of the mixing cup.

[0011] The limiting plate is rotatably connected to the adjusting bolt via a rotating ring.

[0012] By adopting the above technical solution, it is possible to rotate the adjusting bolt to push the limiting plate to limit the side wall of the stirring cup.

[0013] Both the fixing sleeve and the limiting arm are arc-shaped structures, and one end of the limiting arm is a spherical structure.

[0014] By adopting the above technical solution, it is possible to make adjustments according to the size of the mixing cup.

[0015] The beneficial effects of this novel limitable magnetic stirrer are:

[0016] Since the size of the mixing cup may vary, in order to ensure that the limiting mechanism can properly limit the mixing cup, the position of the limiting arm at both ends of the fixed sleeve can be adjusted so that the limiting arm is pulled out more from the fixed sleeve, or the limiting arm can be pushed back into the fixed sleeve. Then, the locking bolt can be rotated to limit the relative position of the limiting arm and the fixed sleeve. The adjustment can be made according to the size of different mixing cups to facilitate limiting them. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the limitable magnetic stirrer proposed in this utility model;

[0018] Figure 2 The diagram shows the limitable magnetic stirrer proposed in this utility model.

[0019] In the figure: 1. Agitator body; 2. Support plate; 3. Moving part; 301. Limiting hole; 4. Spring; 5. Connecting frame; 6. Connecting plate; 7. Adjusting bolt; 8. Limiting plate; 9. Fixing sleeve; 10. Locking bolt; 11. Limiting arm. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0021] Reference Figure 1-2A limitable magnetic stirrer includes a stirrer body 1 and a limiting mechanism placed on the stirrer body 1 to limit the stirring cup. The limiting mechanism includes a support plate 2, a moving part 3, a spring 4, a connecting frame 5, a connecting plate 6, an adjusting bolt 7, a limiting plate 8, a fixing sleeve 9, a locking bolt 10, and a limiting arm 11. The moving part 3 passes through the support plate 2. The connecting frame 5 is fixed to the end of the moving part 3. The spring 4 is installed between the connecting frame 5 and the support plate 2. The connecting plate 6 is fixed to the opening of the connecting frame 5. The limiting plate 8 can be adjusted and rotated on the connecting plate 6 by the adjusting bolt 7. There are two fixing sleeves 9, which are installed opposite each other at the upper and lower ends of the connecting plate 6. The limiting arm 11 is movably embedded at both ends of the fixing sleeve 9 and locked by the locking bolt 10.

[0022] When removing the mixing cup and before placing it, pull the moving part 3 to move the limiting hole 301 to the side of a support plate 2 located at the edge of the mixer body 1. Then, insert the external pin into the limiting hole 301. At this time, the housing restricts the moving part 3 to move towards the middle of the mixer body 1. After placing the mixing cup in the corresponding position on the mixer body 1, pull out the pin in the limiting hole 301 and slowly release the moving part 3. The spring 4 pushes the moving part 3 to move by its elastic force until the limiting arm 11 contacts the side wall of the mixing cup. Then, rotate the adjusting bolt 7 to push the limiting plate 8 so that the limiting plate 8 fits against the side wall of the mixing cup. Thus, the elastic force of the spring 4 makes the limiting arm 11 and the limiting plate 8 cooperate to limit the mixing cup.

[0023] Since the size of the mixing cup may vary, in order to ensure that the limiting mechanism can properly limit the mixing cup, the position of the limiting arm 11 at both ends of the fixed sleeve 9 can be adjusted so that the limiting arm 11 is pulled out more from the fixed sleeve 9, or the limiting arm 11 can be pushed back into the fixed sleeve 9. Then, the locking bolt 10 can be rotated to limit the relative position of the limiting arm 11 and the fixed sleeve 9.

[0024] The support plates 2 are two spaced apart and vertically fixed to the stirrer body 1, and the moving part 3 is set vertically to the support plates 2; the two support plates 2 can stably support the moving part 3, which is composed of two round rods and a connecting block. The two round rods are vertically aligned and horizontally set, and the connecting block is fixed to one end of the two round rods. Limiting holes 301 are also opened on the two round rods; the round rods are set so that the position of the moving part 3 can be adjusted by the elastic force of the spring 4, and the elastic force of the spring 4 can apply a certain pressure to the stirring cup by the limiting arm 11 and the limiting plate 8 to restrict the stirring cup and prevent the stirring cup from shifting position during the stirring process.

[0025] The limiting plate 8 is rotatably connected to the adjusting bolt 7 via a rotating ring; the angle of the limiting plate 8 can be adjusted to fit against the side wall of the mixing cup, thereby stabilizing and limiting the mixing cup.

[0026] Both the fixing sleeve 9 and the limiting arm 11 are arc-shaped structures, and one end of the limiting arm 11 is a spherical structure; so that the limiting arm 11 can contact the mixing cup through the spherical end, adjust the position of the fixing sleeve 9 and the limiting arm 11, and enable the limiting arms 11 at both ends of the fixing sleeve 9 to adapt and restrict mixing cups of different sizes.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A limitable magnetic stirrer, comprising a stirrer body (1) and a limiting mechanism disposed on the stirrer body (1) to limit the stirring cup, characterized in that: The limiting mechanism includes a support plate (2), a moving part (3), a spring (4), a connecting frame (5), a connecting plate (6), an adjusting bolt (7), a limiting plate (8), a fixing sleeve (9), a locking bolt (10), and a limiting arm (11). The moving part (3) is disposed through the support plate (2). The connecting frame (5) is fixed to the end of the moving part (3). The spring (4) is installed between the connecting frame (5) and the support plate (2). The connecting plate (6) is fixed to the opening of the connecting frame (5). The limiting plate (8) can be adjusted and rotated on the connecting plate (6) by the adjusting bolt (7). There are two fixing sleeves (9), which are installed opposite each other at the upper and lower ends of the connecting plate (6). The limiting arm (11) is movably embedded at both ends of the fixing sleeve (9) and locked by the locking bolt (10). Both the fixing sleeve (9) and the limiting arm (11) are arc-shaped structures. One end of the limiting arm (11) is a spherical structure.

2. The limitable magnetic stirrer according to claim 1, characterized in that: The support plate (2) consists of two spaced-apart vertically fixed plates on the stirrer body (1), and the moving part (3) is set vertically to the support plate (2).

3. The limitable magnetic stirrer according to claim 2, characterized in that: The moving part (3) consists of two round rods and a connecting block. The two round rods are vertically aligned and horizontally arranged. The connecting block is fixed at one end of the two round rods. Limiting holes (301) are also provided on the two round rods.

4. The limitable magnetic stirrer according to claim 3, characterized in that: The limiting plate (8) is rotatably connected to the adjusting bolt (7) via a rotating ring.

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