A zeta potential measuring device

Abstract

The utility model relates to electric potential measurement technical field especially is a kind of Zeta electric potential measuring device, including carousel, the upper clamping mechanism is fixed with the lower end of carousel, the lower clamping mechanism is correspondingly arranged in the lower end of upper clamping mechanism, and the upper clamping mechanism and the lower clamping mechanism are connected by thread sleeve, and the installation hole of upper clamping mechanism and lower clamping mechanism is placed to the sample to be measured. By rotating thread sleeve, since the thread direction of thread side ring is opposite, the upper clamping mechanism and the lower clamping mechanism will move oppositely. At this time, extrusion plate will pass through the triangular block of extrusion limiting mechanism in the moving process, so as to drive metal sheet deflection extrusion to sample and apply uniform pressure, firmly clamp sample between upper and lower clamping mechanism, and it is convenient to operate for different size samples.

Description

Technical Field

[0001] This utility model relates to the field of potential measurement technology, specifically a Zeta potential measuring device. Background Technology

[0002] Zeta potential is an important parameter characterizing the surface charge properties of particles and is widely used in materials science, chemical engineering, biomedicine, and other fields. Traditional methods for measuring zeta potential mainly include electrophoretic light scattering and laser Doppler methods. While these methods can provide relatively accurate measurement results, they have some limitations in practical applications. For example, traditional methods may not be effective in measuring the zeta potential of some difficult-to-disperse samples or materials with complex surface structures.

[0003] In recent years, with continuous technological advancements, novel methods for measuring zeta potential have gradually attracted attention. Patent document CN118883688A discloses a novel method and instrument for measuring zeta potential. This method involves fixing the sample onto a disk and placing the disk in a conductive medium. The rotation of the disk generates a current potential, which is then measured using a working electrode and a counter electrode. This method improves the flexibility and accuracy of the measurement to a certain extent and can adapt to more types of samples.

[0004] However, in actual operation, the step of fixing the sample onto the disk presents certain inconveniences. On the one hand, fixing the sample requires precise operation to ensure that it is stably and evenly distributed on the disk; otherwise, it may affect the accuracy of the measurement results. On the other hand, the design of the sample fixing device also needs to take into account versatility and adaptability to meet the measurement needs of samples with different diameters. Utility Model Content

[0005] The purpose of this invention is to provide a Zeta potential measuring device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a Zeta potential measuring device, comprising a turntable, wherein an upper clamping mechanism is fixedly provided at the lower end of the turntable, and a lower clamping mechanism is correspondingly provided at the lower end of the upper clamping mechanism, the upper clamping mechanism and the lower clamping mechanism being connected by a threaded sleeve.

[0007] Furthermore, the lower clamping mechanism includes a lower fixed plate and a threaded edge ring arranged coaxially. The threaded edge ring is fixedly sleeved on the outside of the lower fixed plate, and the two form an integral ring structure. Several limiting mechanisms are evenly distributed circumferentially on the upper inner side of the lower fixed plate, and an axially movable pressing plate is provided on the lower inner side. The external thread of the threaded edge ring is engaged with the internal thread of the threaded sleeve. By rotating the threaded sleeve, the upper clamping mechanism and the lower clamping mechanism can be driven to move in opposite directions or in opposite directions simultaneously.

[0008] Furthermore, the surface of the lower fixing plate is provided with a number of mounting holes, and a number of limiting mechanisms are fixedly provided on the upper inner side of the lower fixing plate.

[0009] Furthermore, the limiting mechanism includes a metal sheet and a triangular block. The metal sheet is fixedly arranged in a ring at the edge of the mounting hole, and the triangular block is fixedly arranged on the outside of the metal sheet.

[0010] Furthermore, the hypotenuse of the triangular block is positioned downwards.

[0011] Furthermore, an extrusion plate is attached to the inner side of the lower fixing plate, and the surface of the extrusion plate is provided with a number of extrusion holes corresponding to the mounting holes, and the extrusion holes are sleeved on the outside of the limiting mechanism.

[0012] Furthermore, the upper clamping mechanism and the lower clamping mechanism have the same structure, and the threaded side rings in the upper clamping mechanism and the lower clamping mechanism are arranged with opposite thread directions. The threaded side rings in the upper clamping mechanism and the lower clamping mechanism are connected to the threaded sleeves by threads.

[0013] Furthermore, the extrusion plates in the upper clamping mechanism and the lower clamping mechanism are fixedly connected by a connecting rod.

[0014] Compared with the prior art, the advantages of this utility model are: the sample to be tested is placed in the mounting holes of the upper and lower clamping mechanisms. By rotating the threaded sleeve, the upper and lower clamping mechanisms will move in opposite directions due to the opposite thread direction of the threaded rings. At this time, the extrusion plate will drive the metal sheet to deflect and extrude through the triangular block of the extrusion limiting mechanism during the movement, thereby applying uniform pressure to the sample and firmly clamping the sample between the upper and lower clamping mechanisms. This method is suitable for samples of different sizes and is convenient to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a Zeta potential measuring device according to the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the lower clamping mechanism of the Zeta potential measuring device of this utility model;

[0017] Figure 3This is a schematic diagram of the limiting mechanism structure of a Zeta potential measuring device according to the present invention;

[0018] Figure 4 This is a schematic diagram of the extrusion plate structure of a Zeta potential measuring device according to this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the Zeta potential measuring device of this utility model.

[0020] Figure 6 This is a schematic cross-sectional view of the overall installation state of the Zeta potential measuring device of this utility model.

[0021] Figure 7 This is a top view of the lower clamping mechanism of a Zeta potential measuring device according to this utility model.

[0022] In the diagram: 1. Upper clamping mechanism; 2. Threaded sleeve; 3. Lower clamping mechanism; 4. Lower fixing plate; 5. Threaded edge ring; 6. Limiting mechanism; 7. Extrusion plate; 8. Metal sheet; 9. Triangular block; 10. Connecting rod; 11. Extrusion hole; 12. Mounting hole; 13. Turntable. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1-7 This utility model provides a technical solution: a Zeta potential measuring device, including a turntable 13, with an upper clamping mechanism 1 fixedly mounted at the lower end of the turntable 13, and a lower clamping mechanism 3 correspondingly mounted at the lower end of the upper clamping mechanism 1. The upper clamping mechanism 1 and the lower clamping mechanism 3 are connected by a threaded sleeve 2. The sample to be tested is placed in the mounting holes 12 of the upper clamping mechanism 1 and the lower clamping mechanism 3. By rotating the threaded sleeve 2, the upper clamping mechanism 1 and the lower clamping mechanism 3 will move in opposite directions due to the opposite thread direction of the threaded ring 5. At this time, the extrusion plate 7 will extrude the triangular block 9 of the extrusion limiting mechanism 6 during the movement, thereby driving the metal sheet 8 to deflect and extrude to apply uniform pressure to the sample, firmly clamping the sample between the upper and lower clamping mechanisms.

[0028] The lower clamping mechanism 3 includes a lower fixed plate 4 and a threaded edge ring 5 arranged coaxially. The threaded edge ring 5 is fixedly sleeved on the outside of the lower fixed plate 4, and the two form an integral ring structure. Several limiting mechanisms 6 are evenly distributed along the circumference on the upper inner side of the lower fixed plate 4, and an axially movable pressing plate 7 is provided on the lower inner side. The external thread of the threaded edge ring 5 is engaged with the internal thread of the threaded sleeve 2. By rotating the threaded sleeve 2, the upper clamping mechanism 1 and the lower clamping mechanism 3 can be driven to move towards or away from each other.

[0029] The surface of the lower fixing plate 4 is provided with several mounting holes 12, and several limiting mechanisms 6 are fixedly provided on the upper inner side of the lower fixing plate 4.

[0030] The limiting mechanism 6 includes a metal sheet 8 and a triangular block 9. The metal sheet 8 is fixedly arranged in a ring at the edge of the mounting hole 12, and the triangular block 9 is fixedly arranged on the outside of the metal sheet 8. The inclined side of the triangular block 9 is set downward. An extrusion plate 7 is attached to the inner side of the lower fixing plate 4. The surface of the extrusion plate 7 is provided with a plurality of extrusion holes 11 corresponding to the mounting hole 12. The extrusion holes 11 are sleeved on the outside of the limiting mechanism 6.

[0031] The upper clamping mechanism 1 and the lower clamping mechanism 3 have the same structure, and the threaded side rings 5 ​​in the upper clamping mechanism 1 and the lower clamping mechanism 3 are arranged with opposite thread directions. The threaded side rings 5 ​​in the upper clamping mechanism 1 and the lower clamping mechanism 3 are both connected to the threaded sleeve 2 by threads. The extrusion plates 7 in the upper clamping mechanism 1 and the lower clamping mechanism 3 are fixedly connected by the connecting rod 10.

[0032] Working Principle: During use, the sample to be tested is placed in the mounting holes 12 of the upper clamping mechanism 1 and the lower clamping mechanism 3. By rotating the threaded sleeve 2, the upper clamping mechanism 1 and the lower clamping mechanism 3 move in opposite directions due to the opposite thread direction of the threaded ring 5. At this time, the extrusion plate 7, during its movement, will extrude through the triangular block 9 of the extrusion limiting mechanism 6, thereby causing the metal sheet 8 to deflect and apply uniform pressure to the sample, firmly clamping the sample between the upper and lower clamping mechanisms. After the sample is clamped, the device is placed in a measurement environment (such as an electrophoresis apparatus). Through the rotation of the turntable 13 or other external driving devices, the sample can perform corresponding movements, thereby achieving the measurement of the Zeta potential. Because the sample is firmly clamped and its position is stable, the sample will not loosen or shift during the measurement process, thus ensuring the accuracy and reliability of the measurement results.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Zeta potential measuring device, characterized in that: It includes an upper clamping mechanism (1), a threaded sleeve (2), a lower clamping mechanism (3), and a turntable (13); the upper clamping mechanism (1) is fixedly provided at the lower end of the turntable (13), and the lower clamping mechanism (3) is correspondingly provided at the lower end of the upper clamping mechanism (1). The upper clamping mechanism (1) and the lower clamping mechanism (3) are connected by the threaded sleeve (2).

2. The Zeta potential measuring device according to claim 1, characterized in that: The lower clamping mechanism (3) includes a lower fixed plate (4) and a threaded edge ring (5) arranged coaxially. The threaded edge ring (5) is fixedly sleeved on the outside of the lower fixed plate (4), and the two form an integral ring structure. Several limiting mechanisms (6) are evenly distributed along the circumference on the upper inner side of the lower fixed plate (4), and an axially movable extrusion plate (7) is provided on the lower inner side. The external thread of the threaded edge ring (5) is engaged with the internal thread of the threaded sleeve (2). By rotating the threaded sleeve (2), the upper clamping mechanism (1) and the lower clamping mechanism (3) can be driven to move towards or away from each other.

3. The Zeta potential measuring device according to claim 2, characterized in that: The lower fixing plate (4) has several mounting holes (12) on its surface, and several limiting mechanisms (6) are fixedly provided on the upper inner side of the lower fixing plate (4).

4. The Zeta potential measuring device according to claim 3, characterized in that: The limiting mechanism (6) includes a metal sheet (8) and a triangular block (9). The metal sheet (8) is fixedly arranged in a ring at the edge of the mounting hole (12), and the triangular block (9) is fixedly arranged on the outside of the metal sheet (8).

5. A zeta potential measuring device according to claim 4, characterized in that: The hypotenuse of the triangular block (9) is set to the downward side.

6. The zeta potential measuring device according to claim 5, characterized in that: The inner side of the lower fixing plate (4) is fitted with an extrusion plate (7), and the surface of the extrusion plate (7) is provided with a number of extrusion holes (11) corresponding to the mounting holes (12). The extrusion holes (11) are sleeved on the outside of the limiting mechanism (6).

7. A zeta potential measuring device according to claim 6, characterized in that: The upper clamping mechanism (1) and the lower clamping mechanism (3) have the same structure, and the threaded side rings (5) in the upper clamping mechanism (1) and the lower clamping mechanism (3) are arranged with opposite thread directions. The threaded side rings (5) in the upper clamping mechanism (1) and the lower clamping mechanism (3) are connected to the threaded sleeve (2) by threads.

8. A Zeta potential measuring device according to claim 7, characterized in that: The extrusion plates (7) in the upper clamping mechanism (1) and the lower clamping mechanism (3) are fixedly connected by a connecting rod (10).

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