Microelectrode stand capable of being accurately adjusted
By designing a microelectrode frame containing a screw, a screw nut and a guide limiting assembly, the problem of inaccurate height adjustment of the electrode bracket in the prior art is solved, and precise fixation and immersion depth control of the microelectrode is achieved, and the consistency of the experimental results is improved.
Patent Information
- Application Number
- CN202421689391.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-17
AI Technical Summary
It is difficult to accurately adjust the height of the electrode brackets in existing electrode frames, especially when using microelectrodes, it is impossible to ensure the same immersion depth of the reference electrode, counter electrode and working electrode, resulting in inconsistent experimental results.
A microelectrode frame including a base, a screw rod, a screw bearing seat, a screw nut, a moving plate, an electrode bracket, a guide limit assembly and a power assembly are designed. Through the cooperation of the screw and the screw nut, the rotary screw is used to realize the up and down movement of the electrode bracket, and the precise adjustment is ensured through the guide limiting assembly.
Accurate quantitative adjustment of the height of the electrode bracket is achieved, ensuring strict control of the fixation of the microelectrode and immersion depth, and improving the consistency and accuracy of the experimental results.
Smart Images
Figure CN222994382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrode fixing devices, in particular to a microelectrode holder that can be precisely adjusted. Background Art
[0002] In electrochemistry experiments, such as in a three-electrode system, the height position of the electrode, the position between electrodes, the surface area immersed in the reaction system, etc. will all affect parameters such as the effective reaction surface area, resistance, and capacitance of the electrode sensor in the test system, thereby resulting in different experimental result data. Among these, the immersion depth of the working electrode has a relatively major influence. Therefore, electrochemistry experiments require an electrode holder that can precisely adjust the height of the electrode support and ensure the same immersion depth for reference electrodes, counter electrodes, and working electrodes of different lengths, so as to effectively control the inter-group variables and ensure the standard consistency of each experiment. However, most of the existing electrode holders on the market can only roughly adjust the height of the electrode support using a knob. In addition, these electrode holders do not consider special electrode types such as microelectrodes. Summary of the Utility Model
[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a microelectrode holder that can be precisely adjusted to achieve precise adjustment of the height of the electrode support and fixation of the microelectrode.
[0004] To achieve the above object, the present utility model provides a microelectrode holder that can be precisely adjusted, adopting the following technical solutions:
[0005] A microelectrode holder that can be precisely adjusted includes a base, a lead screw, a lead screw bearing seat, a lead screw nut, a moving plate, an electrode support, a guiding and limiting component, and a power component. The lead screw bearing seat and the guiding and limiting component are arranged on the base. The moving plate is movably installed on the guiding and limiting component. One end of the lead screw is installed in the lead screw bearing seat, and the other end of the lead screw passes through the moving plate and is connected to the power component. The lead screw is coaxially connected to the lead screw nut, the lead screw nut is fixedly connected to the moving plate, the electrode support is connected to the moving plate, and three electrode limiting holes are arranged on the electrode support to fix the reference electrode, the counter electrode, and the working microelectrode through the three electrode limiting holes.
[0006] Further, the guiding and limiting assembly includes a first limiting rod, a second limiting rod, a first limiting block and a second limiting block. The first limiting rod and the second limiting rod are symmetrically fixed on the base with respect to the lead screw. The moving plate is movably assembled on the first limiting rod and the second limiting rod through a first moving hole and a second moving hole provided on the moving plate. When the moving plate is assembled on the first limiting rod and the second limiting rod, the first limiting block and the second limiting block are respectively fixed on the first limiting rod and the second limiting rod and are both located above the moving plate.
[0007] Further, the electrode bracket includes a bracket base, a connecting rod and an electrode tray. The bracket base is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the electrode tray. Three electrode limiting holes are provided on the electrode tray.
[0008] Further, the bracket base is fixed on the moving plate.
[0009] Further, the bracket base is detachably provided on the moving plate.
[0010] Further, the electrode bracket further includes a first bolt and a second bolt. First mounting holes and second mounting holes are symmetrically provided on the bracket base with respect to the connecting rod. Third mounting holes and fourth mounting holes corresponding to the first mounting holes and the second mounting holes are provided on the moving plate. The first bolt and the second bolt respectively cooperate with the first mounting hole, the third mounting hole, the second mounting hole and the fourth mounting hole to fix the bracket base on the moving plate.
[0011] Further, the diameters of the three electrode limiting holes are 6mm, 5mm and 2mm respectively.
[0012] Further, the power assembly is a rotary handle.
[0013] Further, the power assembly is a servo motor.
[0014] Further, a motor bracket is provided at the upper end of the guiding and limiting assembly, and the servo motor is fixedly installed on the motor bracket.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] 1) The electrode bracket in the present utility model is provided with three electrode limiting holes. The three electrode limiting holes fix the reference electrode, the counter electrode and the working microelectrode through special diameters, and can fix the microelectrodes without special auxiliary devices.
[0017] 2) In the present utility model, the way of driving the electrode support by the screw rod in cooperation with the screw nut and the moving plate enables the screw nut connected to the screw rod to drive the electrode support on the moving plate to move up and down by rotating the screw rod.
[0018] 3) The rotation angle of the screw rod in the present utility model has a linear correlation with the change in the height of the electrode support, which can achieve precise quantitative adjustment of the electrode support and strictly control the depth of the electrode immersed in the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0020] Figure 1 FIG. is a perspective view of a precisely adjustable microelectrode holder when the power component is a rotating handle according to an embodiment of the utility model.
[0021] Figure 2 FIG. is a front view of a precisely adjustable microelectrode holder when the power component is a servo motor according to an embodiment of the present utility model.
[0022] In the figure, 1 is the base, 2 is the screw rod, 3 is the screw rod bearing seat, 4 is the screw nut, 5 is the moving plate, 5-1 is the first moving hole, 5-2 is the second moving hole, 6 is the electrode support, 6-1 is the support base, 6-2 is the connecting rod, 6-3 is the electrode tray, 6-4 is the first bolt, 6-5 is the second bolt, 7 is the guiding and limiting component, 7-1 is the first limiting rod, 7-2 is the second limiting rod, 7-3 is the first limiting block, 7-4 is the second limiting block, 8 is the power component, 9 is the first electrode limiting hole, 10 is the second electrode limiting hole, 11 is the third electrode limiting hole, 12 is the servo motor, and 13 is the motor support. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] Now, the present utility model will be further described with reference to the accompanying drawings of the specification.
[0027] The embodiment of the present utility model provides a microelectrode holder that can be precisely adjusted. As Figure 1 shown, the microelectrode holder that can be precisely adjusted includes a base 1, a lead screw 2, a lead screw bearing seat 3, a lead screw nut 4, a moving plate 5, an electrode support 6, a guiding and limiting component 7, and a power component 8. The lead screw bearing seat 3 and the guiding and limiting component 7 are arranged on the base 1. The moving plate 5 is movably installed on the guiding and limiting component 7. One end of the lead screw 2 is installed on the lead screw bearing seat 3, and the other end of the lead screw 2 passes through the moving plate 5 and is connected to the power component 8. The lead screw 2 is coaxially connected to the lead screw nut 4, and the lead screw nut 4 is fixedly connected to the moving plate 5. The electrode support 6 is connected to the moving plate 5. Three electrode limiting holes are arranged on the electrode support 6, which are respectively denoted as a first electrode limiting hole 9, a second electrode limiting hole 10, and a third electrode limiting hole 11. The reference electrode, the counter electrode, and the working microelectrode are fixed through the first electrode limiting hole 9, the second electrode limiting hole 10, and the third electrode limiting hole 11.
[0028] In this embodiment, the lead screw 2 cooperates with the lead screw nut 4. When the lead screw 2 rotates under the action of the power component 8, the lead screw nut 4 converts the rotational motion of the lead screw 2 into a linear motion. At this time, the lead screw nut 4 moves up and down along the lead screw 2 according to the different rotation directions of the lead screw 2. Since the lead screw nut 4 is fixedly connected to the moving plate 5, the moving plate 5 also moves up and down along the lead screw 2. In order to ensure that the moving plate 5 moves in a set direction and to limit its stroke range, a guiding and limiting component 7 is provided to limit and guide the moving plate 5. The electrode bracket 6 is installed on the moving plate 5, so the electrode bracket 6 will move up and down following the moving plate 5. Thus, the electrode bracket 6 can be moved up and down by the lead screw 2. It can be understood that the rotation angle of the lead screw is linearly related to the height change of the electrode bracket. Therefore, precise quantitative adjustment of the electrode bracket can be achieved, and the depth of the electrode immersed in the system can be strictly controlled.
[0029] In an exemplary embodiment, the diameters of the first electrode limiting hole 9, the second electrode limiting hole 10, and the third electrode limiting hole 11 are 6 mm, 5 mm, and 2 mm respectively. It should be noted that the above dimensions are only examples and are not limitations on the present utility model. The diameters of the first electrode limiting hole 9, the second electrode limiting hole 10, and the third electrode limiting hole 11 are determined according to the specific dimensions of the reference electrode, the counter electrode, and the working microelectrode to be fixed, as long as it can fix the corresponding electrodes without special auxiliary devices.
[0030] In an exemplary embodiment, as Figure 1 shown, the guiding and limiting component 7 includes a first limiting rod 7-1, a second limiting rod 7-2, a first limiting block 7-3, and a second limiting block 7-4. The first limiting rod 7-1 and the second limiting rod 7-2 are symmetrically fixed on the base 1 with respect to the lead screw 2. The moving plate 5 is movably assembled on the first limiting rod 7-1 and the second limiting rod 7-2 through a first moving hole 5-1 and a second moving hole 5-2 provided on the moving plate 5. When the moving plate 5 is assembled on the first limiting rod 7-1 and the second limiting rod 7-2, the first limiting block 7-3 and the second limiting block 7-4 are respectively fixed on the first limiting rod 7-1 and the second limiting rod 7-2 and are both located at the upper end of the moving plate.
[0031] In this embodiment, the guiding and limiting component 7 adopts a double-rod structure symmetrically arranged with respect to the lead screw 2. Among them, the first limiting rod 7-1 and the second limiting rod 7-2 play a guiding role, and the first limiting block 7-3 and the second limiting block 7-4 respectively arranged on the first limiting rod 7-1 and the second limiting rod 7-2 play a limiting role. The positions of the first limiting block 7-3 and the second limiting block 7-4 on the first limiting rod 7-1 and the second limiting rod 7-2 are theoretically parallel, and their specific heights are determined by the maximum height required for actual electrode adjustment.
[0032] In an exemplary embodiment, as Figure 1 shown, the electrode bracket 6 includes a bracket base 6-1, a connecting rod 6-2, and an electrode tray 6-3. One end of the connecting rod 6-2 is fixedly connected to the bracket base 6-1, and the other end of the connecting rod 6-2 is fixedly connected to the electrode tray 6-3. Three electrode limiting holes are provided on the electrode tray 6-3.
[0033] In this embodiment, the bracket base 6-1 in the electrode bracket 6 functions to connect with the moving plate 5, and the connecting rod 6-2 is installed on the bracket base 6-1 to connect the electrode tray 6-3. Only as an example, the bracket base 6-1 and the connecting rod 6-2 can be square, while the electrode tray 6-3 can be circular. The bracket base 6-1, the connecting rod 6-2, and the electrode tray 6-3 are integrally connected to form the electrode bracket 6. The integral connection method includes but is not limited to integral molding by die, welding, or wire cutting.
[0034] In this embodiment, the bracket base 6-1 can be directly fixed to the moving plate 5, or can be detachably arranged on the moving plate 5.
[0035] Here is an example where the bracket base 6-1 is detachably arranged on the moving plate 5. As Figure 1 shown, the electrode bracket further includes a first bolt 6-4 and a second bolt 6-5. First mounting holes and second mounting holes are symmetrically arranged on the bracket base 6-1 with respect to the connecting rod 6-2. Third mounting holes and fourth mounting holes corresponding to the first mounting holes and the second mounting holes are provided on the moving plate. The first bolt 6-4 and the second bolt 6-5 respectively cooperate with the first mounting hole, the third mounting hole, the second mounting hole, and the fourth mounting hole to fix the bracket base 6-1 to the moving plate 5.
[0036] It should be noted that since the first mounting hole, the second mounting hole, the third mounting hole, and the fourth mounting hole are blocked by other parts in the drawings, they are not shown in the figures.
[0037] In an exemplary embodiment, the power assembly can be selected as manual or electric. For example, as Figure 1 shown, the power assembly 8 is a rotary handle. This power assembly 8 is a manual power assembly, and it is necessary to manually rotate the rotary handle to realize the up and down movement of the electrode bracket 6.
[0038] As Figure 2As shown, the power component is the servo motor 12. To install the servo motor 12, a motor bracket 13 is provided at the upper end of the guiding and limiting component 7, and the servo motor 12 is fixedly installed through the motor bracket 13. The servo motor 12 is a motor that can rotate forward and backward. For example, when the servo motor 12 rotates forward, the lead screw 2 rotates clockwise, and at this time, the electrode bracket 6 moves upward. When the servo motor 12 rotates backward, the lead screw 2 rotates counterclockwise, and at this time, the electrode bracket 6 moves downward. By controlling the servo motor 12, the height of the electrode bracket 6 can be adjusted, and this adjustment method is the electric adjustment method.
[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.
Claims
1. A precisely adjustable microelectrode electrode holder, characterized in that: It includes a base, a screw, a screw bearing seat, a screw nut, a movable plate, an electrode bracket, a guide limit assembly and a power assembly. The screw bearing seat and the guide limit assembly are arranged on the base, the movable plate is movably mounted on the guide limit assembly, one end of the screw is mounted on the screw bearing seat, the other end of the screw passes through the movable plate and is connected to the power assembly, the screw is coaxially connected to the screw nut, the screw nut is fixedly connected to the movable plate, the electrode bracket is connected to the movable plate, and three electrical limit holes are arranged on the electrode bracket, so as to fix the reference electrode, the counter electrode and the working microelectrode through the three electrical limit holes.
2. The precisely adjustable microelectrode electrode holder according to claim 1, characterized in that: The guide limit assembly includes a first limit rod, a second limit rod, a first limit block and a second limit block. The first limit rod and the second limit rod are symmetrically fixed to the base about the screw rod. The movable plate is movably assembled on the first limit rod and the second limit rod through a first movable hole and a second movable hole arranged on the movable plate. When the movable plate is assembled on the first limit rod and the second limit rod, the first limit block and the second limit block are respectively fixed on the first limit rod and the second limit rod and are both located at the upper end of the movable plate.
3. The precisely adjustable microelectrode electrode holder according to claim 1, characterized in that: The electrode bracket comprises a bracket base, a connecting rod and an electrode tray. The bracket base is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the electrode tray. The electrode tray is provided with the three electrode limit holes.
4. The precisely adjustable microelectrode electrode holder according to claim 3, characterized in that: The support base is fixed on the moving plate.
5. The precisely adjustable microelectrode electrode holder according to claim 3, characterized in that: The support base is detachably arranged on the movable plate.
6. The precisely adjustable microelectrode electrode holder according to claim 5, characterized in that: The electrode bracket also includes a first bolt and a second bolt, a first mounting hole and a second mounting hole are symmetrically arranged on the bracket base about the connecting rod, a third mounting hole and a fourth mounting hole are arranged on the movable plate corresponding to the first mounting hole and the second mounting hole, and the first bolt and the second bolt respectively cooperate with the first mounting hole, the third mounting hole, the second mounting hole, and the fourth mounting hole to fix the bracket base on the movable plate.
7. The precisely adjustable microelectrode electrode holder according to claim 1, characterized in that: The diameters of the three electrical limit holes are 6 mm, 5 mm and 2 mm respectively.
8. The precisely adjustable microelectrode electrode holder according to claim 1, characterized in that: The power component is a rotating handle.
9. The precisely adjustable microelectrode electrode holder according to claim 1, characterized in that: The power assembly is a servo motor.
10. The precisely adjustable microelectrode electrode holder according to claim 9, characterized in that: A motor bracket is arranged at the upper end of the guide limit assembly, and the servo motor is fixedly mounted on the motor bracket.