A transmission electron microscope sample holder

Abstract

The utility model discloses a kind of transmission electron microscope sample bearing devices, it is related to transmission electron microscope technical field.Its structure includes bearing plate, elastic pressing plate and pressure plate;Bearing plate upper surface is equipped with recessed groove part for placing sample and elastic pressing plate;Two for pressure plate insertion cooperation guide clamping plate are fixed on bearing plate upper surface, and when pressure plate is inserted on two guide clamping plate, it is pressed on elastic pressing plate.The utility model improves the use efficiency of transmission electron microscope and sample processing amount by simplifying sample fixing mode, improving operation convenience and protecting sample from being damaged, while reducing maintenance and replacement cost in long-term use;By using the combination of elastic pressing plate and pressure plate, the complex operation of traditional screw fixing is avoided, so that the installation and uninstallation process of sample is more convenient and fast. Users only need to complete the fixation of sample by tweezers operation, without additional tools.

Description

Technical Field

[0001] This utility model belongs to the field of transmission electron microscopy technology, and in particular relates to a sample support device for transmission electron microscopy. Background Technology

[0002] In the field of transmission electron microscopy (TEM), stable sample fixation and precise positioning are crucial for obtaining high-quality imaging results. Existing TEM sample support devices are shown in the attached figure. Figure 5 As shown, screws are commonly used to clamp samples. While this traditional method is widespread, it has several drawbacks. First, screwing samples requires multiple tools, such as screwdrivers and tweezers, increasing the complexity of the operation. Second, excessive force during screw fixing may damage the sample, or uneven force may cause the sample to shift, affecting the observation results. Furthermore, frequent screw loading and unloading can lead to thread wear, reducing the lifespan of the device, and may even result in ineffective sample clamping due to thread damage, increasing maintenance and replacement costs.

[0003] To address the aforementioned technical problems, this invention provides an improved sample support device for transmission electron microscopy. Utility Model Content

[0004] The purpose of this invention is to provide a sample carrier device for transmission electron microscopes, which simplifies the sample fixation method, improves the convenience of operation, and protects the sample from damage, thereby improving the efficiency of transmission electron microscopes and the sample processing capacity, while reducing maintenance and replacement costs during long-term use.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a sample carrier device for transmission electron microscopy, including a carrier plate, an elastic pressure plate, and a pressure plate; the upper surface of the carrier plate is provided with a groove for placing the sample and the elastic pressure plate; two guide plates are fixed on the upper surface of the carrier plate for the insertion and engagement of the pressure plate, and the pressure plate presses on the elastic pressure plate when inserted into the two guide plates.

[0007] As a preferred embodiment of the present invention, the bearing plate includes an integrally formed rectangular flat plate portion and a clamping plate portion protruding from the center of one side; the clamping plate portion is provided with a positioning hole; the groove portion is located at the center of the rectangular flat plate portion.

[0008] As a preferred embodiment of this utility model, the groove portion includes two parallel oval grooves and a rectangular through groove connecting the middle of the two oval grooves; the two guide plates are located on both sides of the rectangular through groove; a sample placement groove for placing samples is opened at the end of the rectangular through groove away from the clamping plate portion and the connection point of the oval groove; a light-transmitting hole is opened at the bottom of the sample placement groove.

[0009] As a preferred technical solution of this utility model, the elastic pressure plate includes two pressure rings; the outer walls of the upper ends of the two pressure rings are connected as one piece by a connecting plate; an upper arch is provided in the middle of the connecting plate; a first slope is provided at each of the two ends of the top of the upper arch; and two first through holes are provided in the upper arch.

[0010] As a preferred embodiment of this utility model, the pressure plate is a rectangular strip structure; a row of first grooves is formed on the upper surface of the pressure plate; and second slopes are symmetrically formed at the upper and lower corners of the insertion end of the pressure plate.

[0011] As a preferred embodiment of this utility model, the top surface of the guide plate is provided with a second groove.

[0012] As a preferred embodiment of this utility model, a positioning groove is provided at the connection between the rectangular through groove and the end of the clamping plate and the oval groove; the diameter of the positioning groove is the same as the diameter of the sample placement groove.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model avoids the complex operation of traditional screw fixing by using a combination of elastic pressure plate and pressure plate, making the sample installation and unloading process simpler and faster. Users can fix the sample by simply using tweezers, without the need for additional tools.

[0015] 2. The elastic deformation of the elastic pressure plate of this utility model can adapt to the slight movement of the sample and maintain the stability of the sample during electron microscopy observation, thereby improving the reliability and reproducibility of the experimental results.

[0016] 3. The groove design of the bearing plate of this utility model is relatively stable when combined with the elastic pressure plate, which effectively avoids shaking after the clamping pressure plate applies pressure.

[0017] 4. The design of this utility model device is simple, which may reduce manufacturing costs. At the same time, due to its durability, it reduces maintenance and replacement costs during long-term use.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the sample support device for transmission electron microscopy of this invention.

[0021] Figure 2 This is a schematic diagram of the supporting plate.

[0022] Figure 3 This is a schematic diagram of the elastic pressure plate.

[0023] Figure 4 This is a schematic diagram of the pressure plate.

[0024] Figure 5 This is a schematic diagram of the existing sample support device for transmission electron microscopy.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Bearing plate, 2-Elastic pressure plate, 3-Pressure plate, 11-Guide plate, 12-Rectangular flat plate, 13-Clamping plate, 14-Positioning hole, 15-Oval groove, 16-Rectangular through groove, 17-Sample placement groove, 18-Light transmission hole, 19-Positioning groove, 110-Second groove, 21-Pressure ring, 22-Connecting plate, 23-Upper arch, 24-First slope, 25-First through hole, 31-First groove, 32-Second slope. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Specific Implementation Example 1:

[0029] Please see Figure 1-4As shown, this utility model is a sample support device for transmission electron microscopy, including a support plate 1, an elastic pressure plate 2, and a pressure plate 3. The upper surface of the support plate 1 has a groove for placing the sample and the elastic pressure plate 2. The elastic pressure plate 2 is used to position and fix the sample placed within the support plate 1. The pressure plate 3 is inserted into the support plate 1 and presses against the outside of the elastic pressure plate 2, causing the elastic pressure plate 2 to undergo elastic deformation and provide continuous pressure to the sample.

[0030] The support plate 1 specifically includes an integrally formed rectangular flat plate portion 12 and a clamping plate portion 13 protruding from the center of one side. The clamping plate portion 13 has a positioning hole 14. The groove portion is located at the center of the rectangular flat plate portion 12.

[0031] Specifically, the recessed portion includes two parallel oval recesses 15 and a rectangular through groove 16 connecting the middle of the two oval recesses 15. Two guide plates 11 are located on both sides of the rectangular through groove 16. At the end of the rectangular through groove 16 away from the clamping plate portion 13, where it connects with the oval recesses 15, a sample placement groove 17 for placing samples is formed. A light-transmitting hole 18 is coaxially arranged at the bottom of the sample placement groove 17.

[0032] Two guide plates 11 are fixed on the upper surface of the bearing plate 1 for the insertion and engagement of the pressure plate 3, and the pressure plate 3 presses on the elastic pressure plate 2 when inserted into the two guide plates 11.

[0033] Specifically, the elastic pressure plate 2 includes two pressure rings 21. The upper outer walls of the two pressure rings 21 are connected as one unit by a connecting plate 22. An upper arch 23 is provided in the middle of the connecting plate 22. A first slope 24 is provided at each of the two ends of the top of the upper arch 23. The first slopes 24 at both ends of the upper arch 23 facilitate the pressure plate 3 to press the upper arch 23 downward along the slope. After the upper arch 23 is squeezed and deformed, it produces elastic deformation, maintaining a continuous downward pressure on the pressure rings 21 at both ends.

[0034] The elastic pressure plate 2 is relatively balanced and stable when installed at both ends. A positioning groove 19 is provided at the connection between one end of the rectangular through groove 16 and the adjacent clamping plate part 13 and the oval groove 15. The diameter of the positioning groove 19 is the same as the diameter of the sample placement groove 17. The depth of the positioning groove 19 plus the sample thickness is the same as the depth of the sample placement groove 17.

[0035] The upper arch 23 has two first through holes 25. When using the elastic pressure plate 2, tweezers are used, with their tips inserted into the two first through holes 25, to facilitate gripping the entire elastic pressure plate 2.

[0036] After the sample is placed in the sample placement slot 17 of the support plate 1, the elastic pressure plate 2 is taken out, and the pressure ring 21 at one end is placed in the sample placement slot 17 and pressed on the sample to position the sample.

[0037] The pressure plate 3 is a rectangular strip structure. A row of first grooves 31 is formed on the upper surface of the pressure plate 3. Second ramps 32 are symmetrically formed at the upper and lower corners of the insertion end of the pressure plate 3. The second ramps 32 cooperate with the first ramps 24 to facilitate pressing down on the upper arch 23. The row of first grooves 31 on the upper surface of the pressure plate 3 facilitates the insertion of tweezers for auxiliary pushing.

[0038] To facilitate the movement of the pressure plate 3 using tweezers, a second groove 110 is provided on the top surface of the guide plate 11. The two tips of the tweezers are respectively inserted into the second groove 110 on the top surface of the guide plate 11 and the first groove 31 on the pressure plate 3. The force of closing the opening end of the tweezers pushes the pressure plate 3 to move, facilitating the insertion and removal of the pressure plate 3. Using the pressure plate 3 to fix and press the elastic pressure plate 2 is a more convenient method than using screws. It can be operated with tweezers and effectively avoids the problem of damaging the threads and failing to tighten the screws when applying excessive force, thus requiring the replacement of a new support plate 1.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sample support device for transmission electron microscopy, characterized in that: It includes a bearing plate (1), an elastic pressure plate (2), and a pressure plate (3); The upper surface of the support plate (1) is provided with a groove for placing the sample and the elastic pressure plate (2); The upper surface of the bearing plate (1) is fixed with two guide plates (11) for the insertion and engagement of the pressure plate (3), and the pressure plate (3) presses on the elastic pressure plate (2) when inserted into the two guide plates (11).

2. The transmission electron microscope sample support device according to claim 1, characterized in that, The support plate (1) includes an integrally formed rectangular flat plate (12) and a clamping plate (13) protruding from the middle of one side; the clamping plate (13) is provided with a positioning hole (14); the groove is located at the center of the rectangular flat plate (12).

3. The transmission electron microscope sample support device according to claim 2, characterized in that, The groove includes two parallel oval grooves (15) and a rectangular through groove (16) connecting the middle of the two oval grooves (15); the two guide plates (11) are located on both sides of the rectangular through groove (16); a sample placement groove (17) for placing samples is opened at the end of the rectangular through groove (16) away from the clamping plate (13) and the connection of the oval groove (15); a light-transmitting hole (18) is opened at the bottom of the sample placement groove (17) and is coaxially arranged.

4. The transmission electron microscope sample support device according to claim 1, characterized in that, The elastic pressure plate (2) includes two pressure rings (21); the upper outer walls of the two pressure rings (21) are connected as one unit by a connecting plate (22); the connecting plate (22) has an upper arch (23) in the middle; a first slope (24) is opened at both ends of the top of the upper arch (23); the upper arch (23) has two first through holes (25).

5. The transmission electron microscope sample support device according to claim 1, characterized in that, The pressure plate (3) is a rectangular strip structure; a row of first grooves (31) is opened on the upper surface of the pressure plate (3); the upper and lower corners of the insertion end of the pressure plate (3) are symmetrically opened with second slopes (32).

6. The transmission electron microscope sample support device according to claim 1, characterized in that, The top surface of the guide plate (11) is provided with a second groove (110).

7. The transmission electron microscope sample support device according to claim 3, characterized in that, The rectangular through groove (16) is connected to the clamping plate part (13) at one end and the oval groove (15) at the same time, and a positioning groove (19) is formed. The diameter of the positioning groove (19) is the same as the diameter of the sample placement groove (17).

Images