Sample fixing part for atomic force microscope

Abstract

The utility model discloses a sample fixing part for an atomic force microscope, and relates to the technical field of sample fixing parts. The device comprises a bottom plate, an adjusting mechanism is arranged on the bottom plate, and the adjusting mechanism comprises an adjusting assembly, a driving assembly and a limiting assembly; the adjusting assembly comprises a box body fixedly connected to the top surface of the bottom plate, an internal thread block is slidably connected to the inner bottom wall of the box body, connecting columns are fixedly connected to the front side and the rear side of the internal thread block, notches are formed in the front side and the rear side of the box body, and connecting rods are hinged to the ends, away from each other, of the two connecting columns; by arranging the adjusting mechanism, the angle of the sample can be conveniently adjusted, so that a specific area of the sample can be conveniently scanned, no external tool is needed during operation, the operation difficulty is reduced, and the use flexibility of the device is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample fixing components, and particularly relates to a sample fixing component for an atomic force microscope. Background Technique

[0002] An atomic force microscope (AFM) is a high-resolution scanning probe microscope, which is widely used in the fields of materials science, nanotechnology, biology, chemistry, etc. The AFM can perform detailed topographic analysis, physical property measurement and mechanical property evaluation on the surface of a sample at the nanoscale. In order to obtain high-precision and high-repeatability measurement results, the fixing and positioning of the sample are crucial.

[0003] However, the existing fixing devices can usually only fix the sample on a plane. In actual operation, researchers often need to adjust the angle of the sample in order to scan a specific area of the sample. Due to the lack of a special angle adjustment mechanism, operators need to use external tools when adjusting the angle of the sample, which not only increases the operation difficulty but also reduces the flexibility of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sample fixing component for an atomic force microscope. By setting an adjustment mechanism, the angle of the sample can be conveniently adjusted to facilitate the scanning of a specific area of the sample, and external tools are not required during operation, which not only reduces the operation difficulty but also improves the flexibility of the device, and solves the problem that the existing fixing devices can usually only fix the sample on a plane. In actual operation, researchers often need to adjust the angle of the sample in order to scan a specific area of the sample. Due to the lack of a special angle adjustment mechanism, operators need to use external tools when adjusting the angle of the sample, which not only increases the operation difficulty but also reduces the flexibility of the device.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model provides a sample fixing component for an atomic force microscope, which includes a bottom plate, and an adjustment mechanism is arranged on the bottom plate. The adjustment mechanism includes an adjustment component, a driving component and a limiting component;

[0007] The adjusting assembly includes a box body fixedly connected to the top surface of the bottom plate. An internally threaded block is slidably connected to the inner bottom wall of the box body. Connecting columns are fixedly connected to the front side and the rear side of the internally threaded block. Notch openings are formed in the front side and the rear side of the box body. The outer walls of the two connecting columns and the inner walls of the two notch openings are slidably connected. Connecting rods are hinged to the mutually remote ends of the two connecting columns. Connecting plates are hinged to the ends of the two connecting rods remote from the connecting columns. Two connecting ear plates are fixedly connected to the top surface of the bottom plate. The tops of the two connecting ear plates and the bottom surface of the connecting plate are hinged.

[0008] Further, the driving assembly includes a threaded rod rotatably connected to the inner wall of the box body. The outer wall of the threaded rod is threadedly connected to the inner wall of the internally threaded block. A knob is fixedly connected to the right end of the threaded rod.

[0009] Further, the limiting assembly includes a rectangular groove formed in the inner bottom wall of the box body. A slider is slidably connected to the inner wall of the rectangular groove. The top surface of the slider is fixedly connected to the bottom surface of the internally threaded block.

[0010] Further, a fixing mechanism is provided on the bottom plate. The fixing mechanism includes a supporting assembly, a connecting assembly, and a fixing assembly.

[0011] The supporting assembly includes four fixing plates fixedly connected to the top surface of the connecting plate. Fixing blocks are fixedly connected to the top surfaces of the four fixing plates.

[0012] Further, the connecting assembly includes four first connecting rods and four second connecting rods hinged to the top surfaces of the four fixing blocks. Pressing plates are hinged to the ends of the four first connecting rods and the four second connecting rods remote from the fixing blocks.

[0013] Further, the fixing assembly includes four connecting blocks fixedly connected to the bottom surfaces of the four second connecting rods. Square connecting plates are fixedly connected to the right sides of the four connecting blocks. First connecting plates are rotatably connected to the front sides of the four square connecting plates. Two rollers are hinged to the front sides of the four first connecting plates.

[0014] Further, four supporting columns are fixedly connected to the bottom surface of the bottom plate. Support plates are fixedly connected to the bottom ends of the four supporting columns.

[0015] The utility model has the following beneficial effects:

[0016] 1. By providing an adjustment mechanism, when the knob is rotated, the threaded rod rotates accordingly, and the internally threaded block can move. The connecting rod pushes against the connecting plate and rotates a certain angle based on the connecting ear plate, realizing the function of angle adjustment. The setting of the adjustment mechanism can conveniently adjust the angle of the specimen, facilitating the scanning of specific areas of the specimen. Moreover, external tools are not required during operation, which not only reduces the operation difficulty but also improves the flexibility of the device.

[0017] 2. By providing a fixing mechanism, when the pressing plate is pressed, through the connection of the first connecting rod and the second connecting rod, the connecting block can be driven by the second connecting rod to approach the specimen to be fixed. There are rollers on the first connecting plate, which can prevent damage to the surface of the specimen while clamping. The setting of the fixing mechanism can effectively prevent the specimen from shifting due to external factors during operation, ensuring the stability of the specimen during measurement and improving the reliability of the measurement results.

[0018] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the structure of the adjustment mechanism of the present utility model;

[0022] Figure 3 is a sectional view of the adjustment mechanism of the present utility model;

[0023] Figure 4 is a schematic diagram of the structure of the fixing mechanism of the present utility model;

[0024] Figure 5 is a rear view of the fixing mechanism of the present utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Base plate; 2. Adjusting mechanism; 3. Fixing mechanism; 11. Support column; 12. Support plate; 21. Box body; 22. Internal thread block; 23. Connecting column; 24. Notch; 25. Connecting rod; 26. Connecting plate; 27. Connecting ear plate; 28. Threaded rod; 29. Knob; 210. Rectangular groove; 211. Slide block; 31. Fixed plate; 32. Fixed block; 33. First connecting rod; 34. Second connecting rod; 35. Pressing plate; 36. Connecting block; 37. Square connecting plate; 38. First connecting plate; 39. Roller. Detailed implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5 As shown in the figure, the present invention is a sample fixing component for an atomic force microscope, including a base plate 1, an adjusting mechanism 2 is arranged on the base plate 1, and the adjusting mechanism 2 includes an adjusting component, a driving component and a limiting component;

[0029] The adjusting component includes a box body 21 fixedly connected to the top surface of the base plate 1. The inner bottom wall of the box body 21 is slidably connected with an internal thread block 22. The front side and the rear side of the internal thread block 22 are fixedly connected with connecting columns 23. Notches 24 are opened on the front side and the rear side of the box body 21. The outer walls of the two connecting columns 23 and the inner walls of the two notches 24 are slidably connected. The mutually remote ends of the two connecting columns 23 are each hinged with a connecting rod 25. The ends of the two connecting rods 25 remote from the connecting columns 23 are hinged with a connecting plate 26. The top surface of the base plate 1 is fixedly connected with two connecting ear plates 27. The tops of the two connecting ear plates 27 and the bottom surface of the connecting plate 26 are each hinged.

[0030] Among them, as Figure 3 shown, the driving component includes a threaded rod 28 rotatably connected to the inner wall of the box body 21. The outer wall of the threaded rod 28 is threadedly connected with the inner wall of the internal thread block 22. The right end of the threaded rod 28 is fixedly connected with a knob 29.

[0031] Among them, as Figure 3 shown, the limiting component includes a rectangular groove 210 opened on the inner bottom wall of the box body 21. The inner wall of the rectangular groove 210 is slidably connected with a slide block 211. The top surface of the slide block 211 and the bottom surface of the internal thread block 22 are fixedly connected.

[0032] By providing an adjustment mechanism 2, turning the knob 29 causes the threaded rod 28 to rotate accordingly. Then, the internally threaded block 22 can move, and the connecting column 23 slides in the notch 24, driving the connecting rod 25 to push against the connecting plate 26 to rotate by a certain angle based on the connecting ear plate 27, realizing the function of angle adjustment. At the same time, a slider 211 is fixedly connected to the bottom surface of the internally threaded block 22, and the slider 211 slides in the rectangular groove 210, which can limit the movement of the internally threaded block 22 and make its movement more stable. The setting of the adjustment mechanism 2 can conveniently adjust the angle of the specimen, facilitating the scanning of specific areas of the specimen. Moreover, external tools are not required during operation, which not only reduces the operation difficulty but also improves the flexibility of the device.

[0033] As shown in Figure 1 and Figure 4 a fixing mechanism 3 is provided on the bottom plate 1. The fixing mechanism 3 includes a support assembly, a connection assembly, and a fixing assembly.

[0034] The support assembly includes four fixing plates 31 fixedly connected to the top surface of the connecting plate 26, and fixing blocks 32 are fixedly connected to the top surfaces of the four fixing plates 31.

[0035] As shown in Figure 4 the connection assembly includes four first connecting rods 33 and four second connecting rods 34 hinged to the top surfaces of the four fixing blocks 32. At the ends of the four first connecting rods 33 and the four second connecting rods 34 away from the fixing blocks 32, four pressing plates 35 are hinged.

[0036] As shown in Figure 5 the fixing assembly includes four connection blocks 36 fixedly connected to the bottom surfaces of the four second connecting rods 34. Square connecting plates 37 are fixedly connected to the right sides of the four connection blocks 36. First connecting plates 38 are rotatably connected to the front sides of the four square connecting plates 37. Two rollers 39 are hinged to the front sides of the four first connecting plates 38.

[0037] By providing the fixing mechanism 3, pressing the pressing plate 35, through the connection of the first connecting rod 33 and the second connecting rod 34, the connection block 36 can be driven by the second connecting rod 34 to approach the specimen to be fixed. The first connecting plate 38 is rotatably connected to the square connecting plate 37. Since there is an arc surface on the side where the connection block 36 contacts the first connecting plate 38, the first connecting plate 38 can rotate by a certain angle, facilitating the clamping and loosening of the specimen. There are rollers 39 on the first connecting plate 38, which can prevent damage to the specimen surface while clamping. The fixing plates 31 and the fixing blocks 32 can play a role in support and connection. The setting of the fixing mechanism 3 can effectively prevent the specimen from shifting due to external factors during operation, ensuring the specimen remains stable during measurement and improving the reliability of the measurement results.

[0038] As shown inFigure 1 As shown in the figure, four support columns 11 are fixedly connected to the bottom surface of the bottom plate 1, and support plates 12 are fixedly connected to the bottom ends of the four support columns 11.

[0039] By providing the support columns 11, with support plates 12 fixedly connected to the bottom ends of the support columns 11, the support columns 11 and the support plates 12 can provide a stable foundation for the entire device, ensuring the stability of the device during operation.

[0040] A specific application of this embodiment is as follows: By providing an adjustment mechanism 2, when the knob 29 is rotated, the threaded rod 28 rotates accordingly, and the internally threaded block 22 can move. The connecting column 23 slides in the notch 24, driving the connecting rod 25 to rotate a certain angle with the connecting ear plate 27 as the basis, realizing the function of angle adjustment. At the same time, a slider 211 is fixedly connected to the bottom surface of the internally threaded block 22, and the slider 211 slides in the rectangular groove 210, which can limit the internally threaded block 22 to make its movement more stable. The setting of the adjustment mechanism 2 can conveniently adjust the angle of the specimen, so as to facilitate scanning of a specific area of the specimen. Moreover, external tools are not required during operation, which not only reduces the operation difficulty but also improves the flexibility of the device;

[0041] By providing a fixing mechanism 3, when the pressing plate 35 is pressed, through the connection of the first connecting rod 33 and the second connecting rod 34, the connecting block 36 can be driven by the second connecting rod 34 to approach the specimen to be fixed. A first connecting plate 38 is rotatably connected to the square connecting plate 37. Since there is a section of arc surface on the side where the connecting block 36 contacts the first connecting plate 38, the first connecting plate 38 can rotate a certain angle, facilitating the clamping and loosening of the specimen. There are rollers 39 on the first connecting plate 38, which can prevent damage to the surface of the specimen while clamping. The fixing plate 31 and the fixing block 32 can play a role in support and connection. The setting of the fixing mechanism 3 can effectively prevent the specimen from shifting due to external factors during operation, ensuring the stability of the specimen during measurement and improving the reliability of the measurement results;

[0042] By providing the support columns 11, with support plates 12 fixedly connected to the bottom ends of the support columns 11, the support columns 11 and the support plates 12 can provide a stable foundation for the entire device, ensuring the stability of the device during operation.

[0043] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A sample fixing component for an atomic force microscope, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with an adjustment mechanism (2), and the adjustment mechanism (2) comprises an adjustment component, a drive component and a limit component; The adjustment assembly comprises a box body (21) fixedly connected to the top surface of the bottom plate (1); the inner bottom wall of the box body (21) is slidably connected to an internal thread block (22); the front and rear sides of the internal thread block (22) are fixedly connected to connecting columns (23); the front and rear sides of the box body (21) are provided with slots (24); the outer walls of the two connecting columns (23) and the inner walls of the two slots (24) are slidably connected; the ends of the two connecting columns (23) away from each other are hinged to connecting rods (25); the ends of the two connecting rods (25) away from the connecting columns (23) are hinged to connecting plates (26); the top surface of the bottom plate (1) is fixedly connected to two connecting ear plates (27); the top ends of the two connecting ear plates (27) and the bottom surface of the connecting plate (26) are hinged.

2. The sample fixing component for an atomic force microscope according to claim 1, characterized in that: The driving assembly comprises a threaded rod (28) rotatably connected to the inner wall of the box body (21), the outer wall of the threaded rod (28) is threadedly connected to the inner wall of the internal thread block (22), and the right end of the threaded rod (28) is fixedly connected to a knob (29).

3. The sample fixing component for an atomic force microscope according to claim 2, characterized in that: The limiting assembly comprises a rectangular groove (210) formed on the inner bottom wall of the box body (21), the inner wall of the rectangular groove (210) is slidably connected with a slider (211), and the top surface of the slider (211) is fixedly connected to the bottom surface of the internal thread block (22).

4. The sample fixing component for an atomic force microscope according to claim 3, characterized in that: The bottom plate (1) is provided with a fixing mechanism (3), and the fixing mechanism (3) comprises a supporting component, a connecting component and a fixing component; The support assembly comprises four fixing plates (31) fixedly connected to the top surface of the connecting plate (26), and the top surfaces of the four fixing plates (31) are all fixedly connected to fixing blocks (32).

5. The sample fixing component for an atomic force microscope according to claim 4, characterized in that: The connecting assembly comprises four first connecting rods (33) and four second connecting rods (34) hinged on the top surfaces of four fixed blocks (32); four pressing plates (35) are hinged on one end of the four first connecting rods (33) and the four second connecting rods (34) away from the fixed blocks (32).

6. The sample fixing component for an atomic force microscope according to claim 5, characterized in that: The fixing assembly comprises four connecting blocks (36) fixedly connected to the bottom surfaces of four second connecting rods (34), the right sides of the four connecting blocks (36) are fixedly connected to square connecting plates (37), the front sides of the four square connecting plates (37) are rotatably connected to first connecting plates (38), and the front sides of the four first connecting plates (38) are hinged to two rollers (39).

7. The sample fixing component for an atomic force microscope according to claim 6, characterized in that: Four support columns (11) are fixedly connected to the bottom surface of the base plate (1), and the bottom ends of the four support columns (11) are all fixedly connected to a support plate (12).

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