Stirring rod lifting mechanism of multi-connected electric stirrer

By designing a lifting mechanism for the stirring rod in a multi-unit electric mixer, the problem of uncontrollable stirring rod insertion depth is solved, enabling adjustable and fixed height of the stirring head, thus improving stirring effect and ease of maintenance.

CN223832204UActive Publication Date: 2026-01-27JIANGSU ZHENGJI INSTR
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Patent Information

Application Number
CN202520399180.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-27
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing multi-unit electric stirrers cannot effectively control the depth to which the stirring rod extends into the liquid in the beaker, resulting in poor stirring performance.

Method used

A lifting mechanism for the stirring rod of a multi-unit electric stirrer was designed. The height of the stirring head can be adjusted and fixed by combining a rotating rod, a sleeve, a clamping seat and a control tube. Torque is transmitted by a clamping bar, a groove and a threaded structure to ensure the stirring effect.

Benefits of technology

The length of the stirring rod can be flexibly adjusted to adapt to different liquid levels, improving the stirring effect and facilitating the disassembly and cleaning of the stirring head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric stirrers, in particular to a multi-linkage electric stirrer stirring rod lifting mechanism which comprises a supporting frame, a stirrer and a stirring rod assembly, the stirrer is fixedly arranged at the top of the supporting frame, and the stirring rod assembly is installed at the output end of the stirrer. The stirring rod assembly comprises a rotating rod, a sleeve, a stirring head, a clamping seat and a control pipe, the bottom of the rotating rod is sleeved with the sleeve, the stirring head is fixedly arranged at the bottom end of the sleeve, the clamping seat is movably connected with the top of the sleeve, and the control pipe is movably connected with the outer side of the top of the sleeve; the extension length of the stirring rod of the multi-connected electric stirrer can be effectively adjusted according to experimental equipment and the liquid level height, so that the position of the stirring head extending into liquid is adjusted, the ideal stirring effect is achieved, the stirring rod assembly is convenient to adjust and reliable to fix, the sleeve and the stirring head can be detached, and the cost is reduced. Therefore, cleaning and maintenance work is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of electric mixer technology, and in particular to a lifting mechanism for the stirring rod of a multi-unit electric mixer. Background Technology

[0002] Medical multi-unit electric stirrers are mainly used in various applications in laboratories and the medical industry, including drug mixing, solution stirring, and reagent mixing. In pharmaceutical manufacturing, multi-unit electric stirrers can quickly and uniformly mix drugs of different components, ensuring the efficacy and safety of the drugs. In medical laboratories, multi-unit electric stirrers are often used for stirring and mixing solutions, ensuring that solutes are uniformly dispersed in solvents, improving the quality and stability of the solutions. In the mixing and reaction of experimental reagents, they effectively improve the reaction rate between reagents, increasing the efficiency and accuracy of experiments.

[0003] Existing multi-unit electric stirrers have a base that can be raised and lowered to elevate the beakers so that the stirring rods can be inserted into the beakers. However, since the bases of multi-unit stirrers need to be raised and lowered uniformly, the depth to which the stirring rods are inserted into the liquid in each beaker cannot be effectively controlled. Therefore, it is necessary to adjust the length of the stirring rods according to the liquid level in the beakers to ensure the stirring effect. Utility Model Content

[0004] This utility model addresses the deficiencies in the existing technology by providing a lifting mechanism for the stirring rod of a multi-unit electric stirrer.

[0005] This utility model is achieved through the following technical solution:

[0006] A multi-unit electric mixer stirring rod lifting mechanism includes a support frame, a mixer, and a stirring rod assembly. The mixer is fixedly mounted on the top of the support frame, and the stirring rod assembly is installed at the output end of the mixer. The stirring rod assembly includes a rotating rod, a sleeve, a stirring head, a clamping seat, and a control tube. The sleeve is fitted onto the outer side of the bottom of the rotating rod, the stirring head is fixedly mounted on the bottom end of the sleeve, the clamping seat is movably connected to the top of the sleeve, and the control tube is movably connected to the outer side of the top of the sleeve.

[0007] In a preferred embodiment of this utility model, the surface of the rotating rod is provided with a retaining strip, and the inner wall of the sleeve is provided with a retaining groove that cooperates with it.

[0008] The retaining strip on the surface of the rotating rod forms a spline shaft, which effectively transmits torque to the sleeve and ensures the mixing effect of the stirring head.

[0009] In a preferred embodiment of the present invention, the clamping seat and the top of the sleeve are movably connected by a pin, a limiting groove is provided on the surface of the rotating rod, and an insert is provided on the inner side of the top of the clamping seat to cooperate with it.

[0010] The clamping seat is locked in the limiting groove on the surface of the rotating rod, which can effectively control the height of the sleeve, thereby adjusting and fixing the height of the stirring head, so that the stirring head can effectively perform the stirring effect.

[0011] In a preferred embodiment of this utility model, the outer side of the sleeve is provided with threads, the inner side of the bottom of the control tube is provided with a threaded hole that mates with it, and the top of the control tube is provided with a pressure hole that mates with the outer wall of the clamping seat.

[0012] In a preferred embodiment of this utility model, the inner side of the top of the pressure application hole of the control tube is inclined;

[0013] Rotating the control tube downwards opens the clamping seat outwards, separating the insert on its inner top from the limiting groove on the rotating rod surface, facilitating sleeve height adjustment. Rotating the control tube upwards applies pressure to the outside of the clamping seat through its top pressure hole, causing the clamping seat to close and the insert to be locked into the limiting groove, thus achieving height fixation.

[0014] The beneficial effects of this utility model are:

[0015] The stirring rod of this multi-unit electric stirrer can be effectively adjusted in length according to the experimental equipment and liquid level, thereby adjusting the position of the stirring head inside the liquid to achieve the ideal stirring effect. The stirring rod assembly is easy to adjust and reliably fixed, and the sleeve and stirring head can be disassembled for easy cleaning and maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the stirring rod lifting mechanism of the multi-unit electric stirrer of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the lifting mechanism for the stirring rod of the multi-unit electric stirrer of this utility model;

[0018] Figure 3 This is a schematic diagram of the stirring rod assembly of the stirring rod lifting mechanism of the multi-unit electric stirrer of this utility model.

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0020] Figure 5 This is a schematic diagram of the control tube structure of the lifting mechanism for the stirring rod of the multi-unit electric stirrer of this utility model.

[0021] In the diagram: 1. Support frame; 2. Mixer; 3. Mixing rod assembly; 31. Rotating rod; 32. Sleeve; 33. Mixing head; 34. Clamping seat; 35. Control tube. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model 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 this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0023] like Figure 1-5 The multi-unit electric mixer stirring rod lifting mechanism shown includes a support frame 1, a mixer 2, and a stirring rod assembly 3. The mixer 2 is fixedly installed on the top of the support frame 1, and the stirring rod assembly 3 is installed at the output end of the mixer 2. The stirring rod assembly 3 includes a rotating rod 31, a sleeve 32, a stirring head 33, a clamping seat 34, and a control tube 35. The sleeve 32 is sleeved on the outer side of the bottom of the rotating rod 31, the stirring head 33 is fixedly installed at the bottom end of the sleeve 32, the clamping seat 34 is movably connected to the top of the sleeve 32, and the control tube 35 is movably connected to the outer side of the top of the sleeve 32.

[0024] Specifically, the rotating rod 31 has a retaining strip on its surface, the inner wall of the sleeve 32 has a retaining groove that mates with it, the clamping seat 34 is movably connected to the top of the sleeve 32 by a pin, the rotating rod 31 has a limiting groove on its surface, the clamping seat 34 has an insert that mates with it on its inner top side, the sleeve 32 has a thread on its outer side, the control tube 35 has a threaded hole that mates with it on its inner bottom side, the control tube 35 has a pressure hole that mates with the outer wall of the clamping seat 34 on its top, and the pressure hole of the control tube 35 is inclined on its inner top side.

[0025] In this embodiment, when stirring is required, the container is placed on the inner side of the bottom of the support frame 1 and on the outer side of the bottom of the corresponding stirring rod assembly 3. Then, the sleeve 32 is held and the control tube 35 is rotated. Under the control of the thread, the control tube 35 descends, so that the clamping seat 34 can open outward. The insert on the inner side of the top of the clamping seat 34 separates from the limiting groove on the surface of the rotating rod 31, so that the sleeve 32 can be controlled to move up and down on the surface of the rotating rod 31 to adjust the height of the stirring head 33.

[0026] Furthermore, after adjusting the stirring head 33 to a suitable height and positioning it at the appropriate depth of the liquid in the container, rotate the control tube 35 upwards. At this time, the inclined surface at the top of the control tube 35 will apply pressure to the outside of the clamping seat 34, causing the clamping seat 34 to close inwards. After the inner insert at the top of the clamping seat 34 is engaged in the corresponding limiting groove on the surface of the rotating rod 31, the height of the sleeve 32 is effectively fixed. Then, drive the rotating rod 31 to rotate, and the clamping strip on its surface forms a spline shaft, effectively transmitting torque to the sleeve 32, thereby causing the stirring head 33 at the bottom of the sleeve 32 to rotate rapidly, achieving the effect of stirring and mixing. After use, the control tube 35 is lowered, and the inner insert at the top of the clamping seat 34 separates from the limiting groove on the surface of the rotating rod 31, allowing the sleeve 32 to be directly disassembled, thus facilitating the cleaning of the stirring head 33 and its connected sleeve 32.

[0027] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0028] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] 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 lifting mechanism for a multi-unit electric stirrer, comprising a support frame (1), a stirrer (2), and a stirring rod assembly (3), characterized in that: The mixer (2) is fixedly mounted on the top of the support frame (1), and the stirring rod assembly (3) is installed at the output end of the mixer (2); The stirring rod assembly (3) includes a rotating rod (31), a sleeve (32), a stirring head (33), a clamping seat (34), and a control tube (35). The sleeve (32) is sleeved on the outer side of the bottom of the rotating rod (31), the stirring head (33) is fixedly set at the bottom end of the sleeve (32), the clamping seat (34) is movably connected to the top of the sleeve (32), and the control tube (35) is movably connected to the outer side of the top of the sleeve (32).

2. The lifting mechanism for the stirring rod of the multi-unit electric stirrer according to claim 1, characterized in that: The rotating rod (31) has a retaining strip on its surface, and the inner wall of the sleeve (32) has a retaining groove that matches it.

3. The lifting mechanism for the stirring rod of the multi-unit electric stirrer according to claim 1, characterized in that: The clamping seat (34) is movably connected to the top of the sleeve (32) by a pin. A limiting groove is provided on the surface of the rotating rod (31), and an insert is provided on the inner side of the top of the clamping seat (34) to cooperate with it.

4. The lifting mechanism for the stirring rod of the multi-unit electric stirrer according to claim 1, characterized in that: The sleeve (32) is provided with threads on the outside, the bottom inner side of the control tube (35) is provided with a threaded hole that matches it, and the top of the control tube (35) is provided with a pressure hole that matches the outer wall of the clamping seat (34).

5. The lifting mechanism for the stirring rod of the multi-unit electric stirrer according to claim 4, characterized in that: The control tube (35) has an inclined inner side at the top of the pressure hole.