Cantilever type retractable miniature electric homogenizing stirrer for experiment

Abstract

The utility model relates to a cantilever type retractable miniature electric homogeneous stirrer for an experiment, which comprises a stirring paddle with a retractable structure, a push rod locking device is arranged between the stirring paddle and a stirring rod, a push rod is adopted to control the expansion angle of the stirring paddle, the push rod is pressed down, the stirring paddle is opened, the push rod is lifted and the stirring paddle is retracted, and the push rod is provided with a locking nut device. The stirring blades can be fixed at any angle; stirring rods with different sizes can be selected to be mounted on the stirring paddle, the stirring paddle is adjusted to be closed downwards and extend into a small-caliber container through the push rod device according to actual conditions, then the push rod is pushed upwards, the stirring paddle is opened, and the opening angle and the locking nut are adjusted, so that the requirement of uniform stirring in the container with the narrow top and the wide bottom is met; the stirring container can be effectively protected and fixed, meanwhile, the rotating speed of the driving motor can be controlled through the rotating speed knob, the rotating speed and the stirring time can be adjusted, and the homogenizing and stirring functions of high-viscosity stirring materials in different containers, especially measuring flasks and other containers with the narrow upper portions and the wide lower portions are achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical device design technology and pretreatment for pharmaceutical preparation detection and analysis, and in particular to an experimental cantilever retractable micro electric homogenizer. Background Technology

[0002] In the quality analysis of pharmaceutical preparations, for the determination of content, content uniformity, and related substances in compound tablets and sustained-release preparations containing only a single component in two-layer or multi-layer tablets, it is often necessary to place a single-dose tablet in a volumetric flask or beaker, add a solvent to dissolve and mix the tablet.

[0003] If a simple method can be used to completely release and dissolve the compound tablets and sustained-release formulations containing different active pharmaceutical ingredients (APIs) in each layer, then multi-component studies and analyses can be conducted simultaneously.

[0004] When conducting multi-component studies using bilayer or multilayer tablets, inconsistencies in solubility and solution homogeneity arise due to differences in active ingredients and excipients across each layer. This is particularly true for sustained-release and controlled-release formulations. Because the sustained-release or controlled-release matrix releases and dissolves slowly and has high viscosity, the concentration of the solution changes over time as the active pharmaceutical ingredient (API) dissolves. The concentration varies at different locations in the volumetric flask or beaker, and the sustained-release or controlled-release matrix is ​​prone to clumping and adhesion. This directly affects the dissolution of the API and solution homogeneity, leading to inaccurate quantitative results. In the pretreatment of novel sustained-release formulations, methods such as magnetic stirrers and ultrasound are commonly used to aid dissolution and homogenization. The magnetic stir bar is placed in the volumetric flask or beaker, and after mixing, the stir bar is rinsed with solvent or weighed to prevent solvent loss. However, the magnetic stir bar is difficult to remove, and magnetic stirring efficiency is relatively low.

[0005] Traditional electric stirrers cannot be inserted into small-diameter volumetric flasks. Samples are typically stirred electrically in wide-mouthed containers such as beakers before being transferred to volumetric flasks. This process is prone to sample loss and is cumbersome. The stir bar height is not adjustable, the motor speed is fixed, and the stirring force remains constant throughout the process. There is no dedicated timer or adjustable stirring diameter, making it inconvenient to adjust the stirrer speed, working time, and stirring range. This results in uneven mixing and insufficient mixing. Furthermore, the lack of a dedicated protective structure for the stirring container means that the stir bar may collide violently with the container wall during stirring, causing the container to tip over.

[0006] In addition, in other stirring scenarios in the laboratory, such as stirring in small-mouthed containers such as conical flasks or volumetric flasks, shaking, stirring with a glass rod, or magnetic stirring with a rotor are commonly used. However, shaking and stirring with a glass rod are time-consuming and laborious, and magnetic stirring with a rotor has a small stirring diameter, which also leads to insufficient mixing. Therefore, there is an urgent need to provide a new stirring device that is suitable for small-mouthed containers. Summary of the Invention

[0007] To overcome the aforementioned defects in the existing technology, this utility model designs an experimental cantilever retractable micro electric homogenizer.

[0008] The technical solution of this utility model is as follows:

[0009] An experimental cantilevered retractable miniature electric homogenizer includes a support rod 1, a motor 4, a power switch 6, a stirring rod 9, a stirring paddle 13, a base 14, a first support frame 15, a clamp 17, and a second support frame 20.

[0010] The upright 1 is vertically fixed to the base 14. A first support fixing frame 15 and a second support fixing frame 20 are arranged sequentially from top to bottom on the upright 1. The height of the first support fixing frame 15 and the second support fixing frame 20 can be adjusted on the upright 1.

[0011] One end of the first support bracket 15 is connected to the motor 4, so that the motor 4 is cantilevered and fixed to the upper part of the upright 1.

[0012] One end of the second support frame 20 is provided with a clamp 17; the clamp 17 is used to fix and protect the mixing container.

[0013] The motor 4 is a hollow spindle motor. The stirring rod 9 passes through the spindle of the motor 4. The height of the stirring rod 9 passing through the spindle of the motor 4 can be adjusted. The power switch 6 controls the opening and closing of the motor 4. The spindle of the motor 4 drives the stirring rod 9 to rotate.

[0014] The bottom end of the stirring rod 9 is provided with a stirring paddle 13.

[0015] Furthermore, the electric homogenizer also includes a closed housing 2, which is used to prevent liquid from splashing into the motor and corroding the circuitry, thus ensuring safe operation.

[0016] The enclosed housing 2 is fixedly connected to the outside of the motor 4, so that the first support bracket 15 fixes the motor 4 and also fixes the enclosed housing 2.

[0017] Alternatively, the first support bracket 15 can fix the motor 4 and the enclosed housing 2 respectively.

[0018] The closed outer shell 2 is provided with through holes at the top and bottom, and the stirring rod 9 passes through the through holes through the upper and lower parts of the closed outer shell 2.

[0019] Furthermore, the first support bracket 15 can be connected to the motor 4 in a fixed or unfixed manner. The fixed connection can be, for example, welding, while the unfixed connection can be, for example, using a clamping device similar to a locking bolt.

[0020] Furthermore, the electric homogenizer also includes a speed control knob 5 and a timer knob 19, which are electrically connected to the motor 4. The speed control knob 5 is used to set the operating speed of the motor, and the timer knob 19 is used to adjust the mixing time.

[0021] In a particular embodiment, the speed control knob 5 and the timer knob 19 are mounted on the enclosed housing 2.

[0022] Furthermore, the electric homogenizer also includes a gear adjusting ring 7, a drill clamp 8, and a fixing ring 18. The fixing ring 18 is sleeved on the upper part of the stirring rod 9, and the fixing ring 18 is located on the upper end of the motor 4 or on the outside of the upper end of the enclosed housing 2.

[0023] In some specific embodiments, the retaining ring 18 is an annular device that can be tightly fitted with the stirring rod 9, such as a rubber ring;

[0024] When the experimental cantilever retractable micro electric homogenizer does not include the enclosed outer shell 2, the fixing ring 18 is set at the upper end of the motor 4; after the stirring rod 9 passes through the main shaft of the motor 4, the position of the fixing ring 18 on the stirring rod 9 is adjusted, thereby fixing the position of the stirring rod 9 relative to the motor 4.

[0025] When the experimental cantilever retractable micro electric homogenizer is equipped with a closed outer shell 2, the fixing ring 18 is set on the upper outside of the closed outer shell 2; after the stirring rod 9 passes through the through hole and exits the closed outer shell 2, the position of the fixing ring 18 on the stirring rod 9 is adjusted, thereby fixing the position of the stirring rod 9 relative to the closed outer shell 2.

[0026] The adjusting ring 7 and the drill clamp 8 are sleeved on the lower part of the stirring rod 9, and both the adjusting ring 7 and the drill clamp 8 are located at the lower end of the motor 4 or outside the lower end of the enclosed housing 2.

[0027] When the experimental cantilever retractable micro electric homogenizer does not include the enclosed outer shell 2, the adjustment ring 7 and the drill clamp 8 are located at the lower end of the motor 4.

[0028] When the experimental cantilever retractable micro electric homogenizer is equipped with a closed outer shell 2, the adjustment ring 7 and the drill clamp 8 are located on the lower outside of the closed outer shell 2.

[0029] In a particular embodiment, the adjusting ring 7 is fixed at the lower end of the closed outer shell 2 through hole.

[0030] In a particular embodiment, the adjusting ring 7 may have a double-threaded perforated structure. In this case, the lower end through hole of the closed housing 2 is provided with a thread that matches the external thread of the adjusting ring 7. The external thread of the adjusting ring 7 can engage with the thread provided in the lower end through hole of the closed housing 2, so that the adjusting ring 7 is fixed at the lower end through hole of the closed housing 2.

[0031] Loosening the adjusting ring 7 allows the drill chuck 8 to be released, thereby allowing the stirring rod 9, which is fitted inside the drill chuck 8, to move up and down. After adjusting the stirring rod 9 to an appropriate height, tightening the adjusting ring 7 allows the drill chuck 8 to be clamped, thereby fixing the position of the stirring rod 9, which is fitted inside the drill chuck 8.

[0032] The fixing ring 18, the adjusting ring 7, and the drill clamp 8 respectively limit the position of the stirring rod 9 at the upper and lower parts of the motor 4 or the enclosed housing 2, thereby realizing the height adjustment and fixation of the stirring rod 9.

[0033] Furthermore, the electric homogenizer also includes a locking nut 10, a push rod 11, and a connecting rod 12. The push rod 11 is parallel to the stirring rod 9 and controls the expansion angle of the stirring paddle 13. When the push rod 11 is pressed down, it causes the connecting rod 12 to open, and the stirring paddle 13 opens. When the push rod 11 is raised, it causes the connecting rod 12 to retract downward, and the stirring paddle 13 contracts. The opening angle is controlled by the height of the push rod 11. The push rod 11 is equipped with a locking nut 10, which can limit the height of the push rod 11 and support the stirring paddle to be fixed at any angle. The locking nut 10, push rod 11, and connecting rod 12 control the opening and closing of the stirring paddle 13 in a manner similar to the opening and closing of an umbrella.

[0034] The design of the locking nut 10, push rod 11, and connecting rod 12 allows the stirring paddle 13 to open and close as needed, making it convenient to insert the stirring paddle into a small-diameter container, and to adjust the stirring paddle to a suitable angle after it is inserted into the container for homogeneous stirring of the solution.

[0035] Furthermore, the stirring paddle 13 has a three-blade structure and has shearing, homogenizing and stirring functions.

[0036] Furthermore, the electric homogenizer also includes a display screen 3, which is located outside the enclosed housing 2. The display screen 3 is electrically connected to the motor 4, the speed control knob 5, and the timer knob 19, and is used to display the speed and working time of the motor 4.

[0037] Furthermore, the electric homogenizing mixer also includes a first locking bolt 16 and a second locking bolt 21; the first support bracket 15 is connected to one end of the upright 1 with the first locking bolt 16, and the second support bracket 20 is connected to one end of the upright 1 with the second locking bolt 21. Loosening the first locking bolt 16 or the second locking bolt 21 allows the first support bracket 15 and the second support bracket 20 to move up and down on the upright 1; tightening the first locking bolt 16 or the second locking bolt 21 fixes the first support bracket 15 and the second support bracket 20 to their respective positions on the upright 1.

[0038] The term "container" as used in this patent is not specifically limited. For example, it can be a small-mouthed container such as a measuring bottle or conical flask, or a wide-mouthed container such as a beaker.

[0039] In a particular embodiment, the device described in this patent is used in methods for determining the content, content uniformity, and related substances of compound tablets and sustained-release formulations containing only a single component in double-layer or multi-layer tablets, where a single-dose tablet is placed in a volumetric flask for dissolution and mixing.

[0040] Due to the adoption of the above technical solutions, this utility model has the following advantages:

[0041] 1. The stirring rod is equipped with a push rod at its lower end, which connects to the stirring paddle. Driven by the push rod, the stirring paddle opens or closes. When the push rod is pressed down, the stirring paddle opens; when the push rod is raised, the stirring paddle closes. The opening angle of the stirring paddle is controlled. The push rod is equipped with a locking nut device, which can support the stirring paddle to be fixed at any angle, making it convenient to insert the stirring paddle into the container, especially into small-diameter containers. After being inserted into the container, the stirring paddle can be adjusted to a suitable angle for homogenizing and stirring the solution. The stirring paddle is located at the bottom of the stirring rod. The stirring paddle has a three-blade structure and has shearing, homogenizing, and stirring functions, which is conducive to thoroughly and evenly stirring the solution. The middle of the upright rod is fixed and protected by the aforementioned support and fixing bracket clamp, which can effectively prevent the stirring rod from swinging too much during the stirring process and causing a strong collision between the stirring rod and the container wall.

[0042] 2. This experimental cantilevered retractable miniature electric homogenizer is designed using a combination of a double-support frame, upright, base, locking bolts, display screen, speed control knob, timer knob, power switch, adjustment ring, drill clamp, stirring rod, push rod, locking nut, connecting rod, and stirring paddle. The motor is reliably locked; the motor is enclosed in a sealed shell to prevent liquid from splashing into the machine and corroding the circuitry, ensuring safe operation; two knobs are located on the front side of the protective cover to adjust the speed and stirring time; the adjustment ring, drill clamp, and fixing ring allow for adjustment of the stirring rod height. Attached Figure Description

[0043] Figure 1This is a schematic diagram of the structure of this utility model;

[0044] Figure 2 The vessel and its standard dimensions are designed to be used with an experimental cantilevered retractable micro electric homogenizer.

[0045] Figure 3 This is a structural diagram of the lower half of the stirring paddle to the retractable stirring paddle section.

[0046] Figure 4 This is a schematic diagram of the structure of the first support frame.

[0047] The components and reference numerals are as follows:

[0048] 1. Upright pole; 2. Enclosed housing; 3. Display screen; 4. Motor; 5. Speed ​​control knob; 6. Power switch; 7. Adjustment ring; 8. Drill chuck; 9. Stirring rod; 10. Locking nut; 11. Push rod; 12. Connecting rod; 13. Stirring paddle; 14. Base; 15. First support bracket; 16. First locking bolt; 17. Chuck; 18. Fixing ring; 19. Timer knob; 20. Second support bracket; 21. Second locking bolt. Detailed Implementation

[0049] The present invention will be further explained below with reference to the embodiments, but the embodiments do not limit the present invention in any way.

[0050] like Figure 1 As shown, an experimental cantilever retractable micro electric homogenizer includes a vertical rod 1, a closed shell 2, a display screen 3, a motor 4, a speed control knob 5, a power switch 6, a speed adjustment ring 7, a drill clamp 8, a stirring rod 9, a locking nut 10, a push rod 11, a connecting rod 12, a stirring paddle 13, a base 14, a first support frame 15, a first locking bolt 16, a chuck 17, a fixing ring 18, a timer knob 19, a second support frame 20, and a second locking bolt 21.

[0051] The upright 1 is vertically fixed to the base 14. A first support fixing frame 15 and a second support fixing frame 20 are arranged sequentially from top to bottom on the upright 1. The height of the first support fixing frame 15 and the second support fixing frame 20 can be adjusted on the upright 1.

[0052] The first support fixing frame 15 is connected to one end of the upright 1 by a first locking bolt 16. Figure 4The second support bracket 20 is connected to one end of the upright 1 and is fitted with a second locking bolt 21. Loosening the first locking bolt 16 or the second locking bolt 21 allows the first support bracket 15 and the second support bracket 20 to move up and down on the upright 1. Tightening the first locking bolt 16 or the second locking bolt 21 fixes the first support bracket 15 and the second support bracket 20 to their respective positions on the upright 1. One end of the first support bracket 15 is connected to the motor 4, allowing the motor 4 to be cantilevered and fixed to the upper part of the upright 1. The first support bracket 15 can be connected to the motor 4 in a fixed or unfixed manner. A fixed connection can be, for example, welding; an unfixed connection can be, for example, using a clamping device similar to a locking bolt.

[0053] like Figure 1 In the device shown, the electric homogenizer also includes a closed housing 2, which is used to prevent liquid from splashing into the motor and corroding the circuit, thus ensuring safe operation.

[0054] The enclosed housing 2 is fixedly connected to the outside of the motor 4, so that the first support bracket 15 fixes the motor 4 and the enclosed housing 2 at the same time; in an alternative, the first support bracket 15 fixes the motor 4 and the enclosed housing 2 respectively.

[0055] The power switch 6 controls the opening and closing of the motor 4.

[0056] The display screen 3 is located outside the enclosed housing 2. The display screen 3 is electrically connected to the motor 4, the speed control knob 5, and the timer knob 19, and is used to display the speed and working time of the motor 4.

[0057] Speed ​​control knob 5 and timer knob 19 are electrically connected to motor 4; speed control knob 5 is used to set the operating speed of the motor, and timer knob 19 is used to adjust the stirring time; speed control knob 5 and timer knob 19 are mounted on the enclosed housing 2.

[0058] The motor 4 is a hollow spindle motor. The stirring rod 9 passes through the spindle of the motor 4. The height of the stirring rod 9 passing through the spindle of the motor 4 can be adjusted. The spindle of the motor 4 drives the stirring rod 9 to rotate.

[0059] The enclosed outer shell 2 is provided with through holes at the top and bottom. The stirring rod 9 passes through the through holes at the top and bottom of the enclosed outer shell 2 and through the main shaft of the motor 4.

[0060] The fixing ring 18 is a ring-shaped device that can be tightly fitted with the stirring rod 9, such as a rubber ring. After the stirring rod 9 passes through the through hole of the closed housing 2, the fixing ring 18 is fitted on the upper part of the stirring rod 9. The position of the fixing ring 18 on the stirring rod 9 is adjusted so that the fixing ring 18 is locked on the through hole at the upper end of the closed housing 2, thereby fixing the position of the stirring rod 9 relative to the closed housing 2 and achieving the initial fixation of the height of the stirring rod 9.

[0061] As an alternative, when the experimental cantilever retractable micro electric homogenizer does not include the enclosed outer shell 2, the fixing ring 18 is set at the upper end of the motor 4; after the stirring rod 9 passes through the main shaft of the motor 4, the position of the fixing ring 18 on the stirring rod 9 is adjusted, thereby fixing the position of the stirring rod 9 relative to the motor 4, and achieving the initial fixation of the height of the stirring rod 9.

[0062] The adjusting ring 7 and the drill clamp 8 are sleeved on the lower part of the stirring rod 9, and both the adjusting ring 7 and the drill clamp 8 are located on the lower part of the closed outer shell 2.

[0063] The adjusting ring 7 is fixed at the lower end of the closed housing 2 through hole. The fixing method can be that the adjusting ring 7 has a double-threaded through hole structure. In this case, the lower end of the closed housing 2 through hole is provided with a thread that matches the external thread of the adjusting ring 7. The external thread of the adjusting ring 7 can engage with the thread provided in the lower end of the closed housing 2 through hole, so that the adjusting ring 7 is fixed at the lower end of the closed housing 2 through hole.

[0064] Loosening the adjusting ring 7 allows the drill chuck 8 to be released, thereby allowing the stirring rod 9, which is fitted inside the drill chuck 8, to move up and down. After adjusting the stirring rod 9 to an appropriate height, tightening the adjusting ring 7 allows the drill chuck 8 to be clamped, thereby fixing the position of the stirring rod 9, which is fitted inside the drill chuck 8.

[0065] The adjusting ring 7 and the drill clamp 8 enable the adjustment of the height of the stirring rod 9. Combined with the initial fixation of the fixing ring 18, the height of the stirring rod is adjusted so that after the stirring rod 9 is inserted into the stirring container, the height of the stirring paddle 13 at the end of the stirring rod 9 can be adjusted and stably fixed at the largest diameter or other suitable position in the volumetric flask or beaker containing the medicine and solvent.

[0066] The bottom end of the stirring rod 9 is provided with a stirring paddle 13, which is shaped like a three-blade structure and has the functions of shearing, homogenizing and stirring.

[0067] The push rod 11 is arranged parallel to the lower part of the stirring rod 9. The push rod 11 controls the expansion angle of the stirring paddle 13. When the push rod 11 is pressed down, it drives the connecting rod 12 to open, and the stirring paddle 13 opens. When the push rod 11 is raised, it drives the connecting rod 12 to close downward, and the stirring paddle 13 retracts. The opening angle is controlled by the height of the push rod 11. The push rod 11 is equipped with a locking nut 10, which can limit the height of the push rod 11 and support the stirring paddle to be fixed at any angle. The opening and closing of the stirring paddle 13 by the locking nut 10, the push rod 11, and the connecting rod 12 is similar to the opening and closing of an umbrella.

[0068] Figure 2 The different stirring containers shown can have a height of any value between 14 and 37.7 cm, a mouth diameter of any value between 1 and 2.2 cm, and a bottom diameter of any value between 3 and 10 cm; as a specific method, Figure 3 In this device, the diameter of the stirring rod is 0.8 cm. When it is inserted into a container such as a volumetric flask or beaker, the stirring paddle retracts. The height of the lower part of the stirring rod extending into the volumetric flask can be adjusted within the range of 14 to 37.7 cm. The opening angle of the stirring paddle can be adjusted to make the stirring diameter 3 to 10 cm, which is suitable for containers of different sizes. The volumetric flask sizes include, but are not limited to, 50 to 2000 ml. Wide-mouth containers such as beakers and conical flasks can also be used.

[0069] As an alternative, when the experimental cantilever retractable micro electric homogenizer does not include the enclosed outer shell 2, the adjustment ring 7 and the drill clamp 8 are located at the lower end of the motor 4;

[0070] One end of the second support frame 20 is provided with a clamp 17; the clamp 17 is used to fix and protect stirring containers such as volumetric flasks and beakers, and can effectively prevent the stirring rod 9 from swinging too much during the stirring process, causing the stirring rod 9 to collide violently with the container wall and cause the container to tip over. According to the height of the stirring container, the second support frame 20 is adjusted to move up and down so that the clamp 17 is in a suitable position on the stirring container.

[0071] The stirring container described in this utility model is not particularly limited and can be, for example, a container that is narrow at the top and wide at the bottom, including but not limited to volumetric flasks, beakers, conical flasks, etc.

[0072] The stirring diameter of the stirring paddle described in this invention is not particularly limited and can be set according to the size of the stirring container. For example, the rotation diameter is between 3 and 10 cm.

[0073] The diameter of the stirring rod in this invention is not particularly limited and can be set according to the size of the stirring container. For example, the diameter of the stirring rod is 0.8 to 1.8 cm.

[0074] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An experimental cantilevered retractable micro-electric homogenizer, characterized in that, The electric homogenizer includes a vertical rod (1), a motor (4), a power switch (6), a stirring rod (9), a stirring paddle (13), a base (14), a first support frame (15), a clamp (17), and a second support frame (20). The upright (1) is vertically fixed on the base (14). A first support fixing frame (15) and a second support fixing frame (20) are arranged on the upright (1) from top to bottom. The first support fixing frame (15) and the second support fixing frame (20) can adjust their height on the upright (1). One end of the first support bracket (15) is connected to the motor (4); A clamp (17) is provided at one end of the second support fixing frame (20); The motor (4) is a hollow spindle motor. The stirring rod (9) passes through the spindle of the motor (4). The power switch (6) controls the opening and closing of the motor (4). The spindle of the motor (4) drives the stirring rod (9) to rotate. The bottom end of the stirring rod (9) is provided with a stirring paddle (13).

2. The cantilevered collapsible micro-electric homogenizer for experiments according to claim 1, characterized in that, The electric homogenizer also includes a closed shell (2), which has through holes at the top and bottom. The stirring rod (9) passes through the through holes to the upper and lower parts of the closed shell (2).

3. The cantilevered collapsible micro-electrically homogenizing stirrer for experiments according to claim 1, characterized in that, The electric homogenizer also includes a speed control knob (5) and a timer knob (19). The speed control knob (5) and the timer knob (19) are electrically connected to the motor (4). The speed control knob (5) is used to set the operating speed of the motor, and the timer knob (19) is used to adjust the mixing time.

4. The cantilevered collapsible micro-electric homogenizer for experiments according to claim 1 or 2, characterized in that The electric homogenizer also includes a gear adjusting ring (7), a drill clamp (8), and a fixing ring (18); The fixing ring (18) is sleeved on the upper part of the stirring rod (9), and the fixing ring (18) is located on the upper end of the motor (4) or on the outside of the upper end of the closed shell (2); The adjusting ring (7) and the drill clamp (8) are fitted on the lower part of the stirring rod (9), and the adjusting ring (7) and the drill clamp (8) are both located at the lower end of the motor (4) or outside the lower end of the enclosed shell (2). Loosening the adjusting ring (7) allows the drill clamp (8) to be released, and the stirring rod (9) can move up and down. Tightening the adjusting ring (7) allows the drill clamp (8) to be clamped, and the position of the stirring rod (9) is fixed.

5. The cantilevered collapsible micro- homogenizer stirrer for experimentation of claim 1, wherein, The electric homogenizer also includes a locking nut (10), a push rod (11), and a connecting rod (12). The push rod (11) is arranged parallel to the stirring rod (9). The push rod (11) controls the expansion angle of the stirring paddle (13). When the push rod (11) is pressed down, it drives the connecting rod (12) to open, and the stirring paddle (13) opens. When the push rod (11) rises, it drives the connecting rod (12) to retract downward, and the stirring paddle (13) contracts. The opening angle is controlled by the height of the push rod (11) pushing up and pulling down. The push rod (11) is equipped with a locking nut (10) to limit the height of the push rod (11).

6. The cantilevered collapsible micro- homogenizer stirrer for experimentation of claim 1, wherein, The stirring paddle (13) has a three-blade structure.

7. The experimental cantilever retractable micro electric homogenizer according to claim 2, characterized in that, The electric homogenizer also includes a display screen (3), which is located outside the enclosed housing (2) and is electrically connected to the motor (4), speed control knob (5), and timer knob (19).

8. The cantilevered collapsible micro- homogenizer mixer for experimentation of claim 1, wherein, The electric homogenizer also includes a first locking bolt (16) and a second locking bolt (21); the first support bracket (15) is connected to one end of the upright (1) and is provided with the first locking bolt (16), and the second support bracket (20) is connected to one end of the upright (1) and is provided with the second locking bolt (21).

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