Atomic force microscope sample stage

Abstract

The utility model discloses an atomic force microscope sample stage, and relates to the technical field of microscope sample stages. The sample table comprises a base, a sample table body is arranged above the base, a first blocking shell is fixedly connected to the bottom of the sample table body, a fixing block is fixedly connected to the front face of the sample table body, a cover plate is arranged below the fixing block, a second blocking shell is fixedly connected to the top of the base, and a connecting block is fixedly connected to the left side of the second blocking shell. According to the device, the lifting assembly is arranged, specifically, a rotating handle is rotated anticlockwise to drive a rotating rod to rotate, the rotating rod can drive a ratchet wheel and a second gear to rotate, and the second gear drives a first gear to rotate clockwise, so that a lifting rod is driven to move upwards, a sample table is lifted upwards, a pressing rod is pressed, a clamping block is lifted upwards, and fixation of the ratchet wheel is relieved; the sample table can move downwards through the gravity of the sample table, lifting adjustment can be completed, operation is convenient, and a worker can conveniently and better use a microscope to amplify and observe a sample.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscope sample stages, and particularly relates to an atomic force microscope sample stage. Background Technique

[0002] The atomic force microscope is an observation device derived from the scanning tunneling microscope. It mainly contacts the mechanical probe with the surface of the sample. The force between the probe and the sample surface causes the cantilever of the probe to bend, and by analyzing the change in the reflected light of the cantilever, the surface topography of the sample can be obtained.

[0003] When using an atomic force microscope, a sample stage is usually required. However, the existing sample stages are usually fixed on the desktop and do not have the function of lifting. When it is necessary to bring the sample closer to the microscope, it is not easy to operate, resulting in the microscope being unable to magnify the sample better and affecting the subsequent required observation effect. Therefore, we propose an atomic force microscope sample stage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an atomic force microscope sample stage. By setting a lifting component, specifically, counterclockwise rotation of the turning handle can raise the sample stage. Press the pressing rod to lift the clamping block upward to release the fixation of the ratchet wheel, and then the sample stage will move downward due to its own gravity, thus completing the lifting adjustment. The operation is convenient, which is conducive to the staff using the microscope to magnify and observe the sample better, and solves the problem that the existing sample stage is usually fixed on the desktop and does not have the function of lifting, affecting the subsequent required observation effect.

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

[0006] The utility model is an atomic force microscope sample stage, including a base. A sample stage is arranged above the base. A first retaining shell is fixedly connected to the bottom of the sample stage. A fixing block is fixedly connected to the front of the sample stage. A cover plate is arranged below the fixing block. A second retaining shell is fixedly connected to the top of the base. A connecting block is fixedly connected to the left side of the second retaining shell. A turning handle is arranged on the left side of the connecting block. A lifting component is arranged inside the second retaining shell;

[0007] The lifting component includes a lifting seat. A cavity is opened inside the lifting seat. A sliding hole is opened at the top of the lifting seat. A lifting rod is slidably connected to the inner wall of the sliding hole. A first gear is meshed and connected to the front of the lifting rod. By setting the lifting component, specifically, counterclockwise rotation of the turning handle can raise the sample stage. Press the pressing rod to lift the clamping block upward to release the fixation of the ratchet wheel, and then the sample stage will move downward due to its own gravity, thus completing the lifting adjustment. The operation is convenient, which is conducive to the staff using the microscope to magnify and observe the sample better.

[0008] Further, a chuck is provided at the center of the bottom of the sample stage. A storage groove is formed inside the fixed block. A clamping rod is slidably connected to the inner wall of the storage groove. The top of the clamping rod is fixedly connected to a spring, and the top of the spring is fixedly connected to the top inner wall of the storage groove. After the cover plate passes through the clamping rod, it will contact the limiting rod, and then the clamping rod will pop out under the elastic action of the spring to squeeze and fix the cover plate.

[0009] Further, a rotating groove is formed inside the cover plate. A rotating shaft is rotatably connected to the inner wall of the rotating groove. The left and right sides of the rotating shaft are fixedly connected to the outer surface of the first baffle shell. A pulling plate is fixedly connected to the front of the cover plate. The back of the cover plate contacts the limiting rod, and the top of the limiting rod is fixedly connected to the bottom of the sample stage. By providing the cover plate, it can play a role in shading and improve the observation effect of using the microscope subsequently.

[0010] Further, a limiting plate is fixedly connected to the bottom of the lifting rod. The outer surface of the limiting plate contacts the inner wall of the cavity. A connecting shaft is rotatably connected to the center of the first gear. The left and right sides of the connecting shaft are respectively fixedly connected to the left and right sides of the inner wall of the cavity. The first gear is meshed with a second gear at the top. A rotating rod is fixedly connected to the center of the second gear. When the rotating handle is rotated counterclockwise to drive the rotating rod to rotate, the rotating rod will drive the ratchet and the second gear to rotate respectively.

[0011] Further, the left side of the rotating rod passes through the lifting seat, the second baffle shell and the connecting block respectively. A ratchet is fixedly connected to the outer surface of the rotating rod. The left side of the rotating rod is fixedly connected to the right side of the rotating handle. When the ratchet rotates, it will push the clamping block upward. Then the center of the pressing rod rotates on the fixed shaft and squeezes the elastic piece, enabling the clamping block to be smoothly reset under the elastic action and thus engaging into the ratchet, so that it will not affect the rotation of the ratchet when rotated counterclockwise.

[0012] Further, a clamping block is inserted into the front of the ratchet. A pressing rod is fixedly connected to the front of the clamping block. A round hole is formed inside the pressing rod. A fixed shaft is rotatably connected to the inner wall of the round hole. An opening is formed on the front of the connecting block. When the pressing rod is pressed, it will drive the clamping block to leave the ratchet and squeeze the elastic piece, enabling the pressing rod to be conveniently reset under the elastic action.

[0013] Further, a limiting block is fixedly connected to the front inner wall of the connecting block. The bottom of the clamping block contacts the top of the limiting block. The left and right sides of the fixed shaft are respectively fixedly connected to the left and right sides of the inner wall of the opening. An elastic piece is fixedly connected to the top of the pressing rod. The top of the elastic piece is fixedly connected to the front inner wall of the connecting block. Stabilizing columns are fixedly connected to the four corners of the bottom of the sample stage. A stabilizing rod is slidably connected to the bottom of the stabilizing column. The bottom of the stabilizing rod is fixedly connected to the top of the base. The top of the lifting rod is fixedly connected to the bottom of the sample stage. The sample stage drives the stabilizing columns to slide on the stabilizing rods, improving the stability of the sample stage and enabling the sample stage to move in a straight line.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting a lifting component, specifically, counterclockwise rotation of the handle drives the rotating rod to rotate. Then, the rotating rod drives the ratchet wheel and the second gear to rotate respectively. The second gear drives the first gear to rotate clockwise, thereby driving the lifting rod to move upward and raising the sample stage. Press the pressing rod to lift the clamping block upward and release the fixation of the ratchet wheel. Then, the sample stage will move downward by its own gravity, and the lifting adjustment can be completed. The operation is convenient and facilitates better use of the microscope by the staff to magnify and observe the sample.

[0016] 2. By setting a cover plate, specifically, pushing the cover plate upward closes the front of the sample stage. After the cover plate passes through the clamping rod, it will contact the limiting rod. Then, the clamping rod pops out under the elastic action of the spring and squeezes and fixes the cover plate. The cover plate can play a role in shading and improve the observation effect of using the microscope subsequently.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal sectional structure of the lifting seat of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the second retaining shell of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of A in it;

[0023] Figure 5 It is a schematic diagram of the right-side sectional structure of the fixing block of the utility model;

[0024] Figure 6 For the utility model Figure 5 The enlarged schematic diagram of B in it.

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

[0026] 1. Base; 11. Sample stage; 111. First retaining shell; 112. Fixed block; 21. Clamping rod; 22. Spring; 113. Cover plate; 31. Rotating shaft; 32. Pulling plate; 33. Limiting rod; 12. Second retaining shell; 121. Connecting block; 122. Rotating handle; 123. Ratchet; 124. Clamping block; 241. Pressing rod; 242. Fixed shaft; 243. Elastic piece; 244. Limiting block; 13. Lifting assembly; 131. Lifting seat; 132. Lifting rod; 321. Limiting plate; 133. First gear; 134. Connecting shaft; 135. Second gear; 136. Rotating rod; 14. Stabilizing column; 141. Stabilizing rod. Detailed implementation manners

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

[0028] Please refer to Figures 1-6 As shown in the figure, the present utility model is an atomic force microscope sample stage, including a base 1. Above the base 1, there is a sample stage 11. At the bottom of the sample stage 11, there is a first retaining shell 111 fixedly connected. On the front of the sample stage 11, there is a fixed block 112 fixedly connected. Below the fixed block 112, there is a cover plate 113. At the top of the base 1, there is a second retaining shell 12 fixedly connected. On the left side of the second retaining shell 12, there is a connecting block 121 fixedly connected. On the left side of the connecting block 121, there is a rotating handle 122. Inside the second retaining shell 12, there is a lifting assembly 13;

[0029] The lifting assembly 13 includes a lifting seat 131. Inside the lifting seat 131, there is a cavity. On the top of the lifting seat 131, there is a sliding hole. Inside the inner wall of the sliding hole, there is a lifting rod 132 slidingly connected. On the front of the lifting rod 132, there is a first gear 133 meshingly connected. By setting the lifting assembly 13, specifically, when the rotating handle 122 is rotated counterclockwise to drive the rotating rod 136 to rotate, the rotating rod 136 will drive the ratchet 123 and the second gear 135 to rotate respectively. The second gear 135 drives the first gear 133 to rotate clockwise, thereby driving the lifting rod 132 to move upward, so that the sample stage 11 is lifted upward. Press the pressing rod 241 to lift the clamping block 124 upward to release the fixation of the ratchet 123, then the sample stage 11 will move downward by its own gravity, and the lifting adjustment can be completed. The operation is convenient, which is convenient for the staff to better use the microscope to magnify and observe the sample.

[0030] A chuck is provided at the center of the bottom of the sample stage 11. A storage groove is formed inside the fixing block 112. A clamping rod 21 is slidably connected to the inner wall of the storage groove. A spring 22 is fixedly connected to the top of the clamping rod 21, and the top of the spring 22 is fixedly connected to the top inner wall of the storage groove.

[0031] A rotating groove is formed inside the cover plate 113. A rotating shaft 31 is rotatably connected to the inner wall of the rotating groove. The left and right sides of the rotating shaft 31 are fixedly connected to the outer surface of the first shielding shell 111. A pulling plate 32 is fixedly connected to the front of the cover plate 113. A limiting rod 33 is in contact with the back of the cover plate 113, and the top of the limiting rod 33 is fixedly connected to the bottom of the sample stage 11. By providing the cover plate 113, specifically, the cover plate 113 is pushed upward to close the front of the sample stage 11. After the cover plate 113 passes through the clamping rod 21, it will contact the limiting rod 33, and then the clamping rod 21 will pop out under the elastic action of the spring 22 to squeeze and fix the cover plate 113. Thus, the cover plate 113 can play a role in blocking light and improve the subsequent observation effect of using the microscope.

[0032] A limiting plate 321 is fixedly connected to the bottom of the lifting rod 132. The outer surface of the limiting plate 321 is in contact with the inner wall of the cavity. A connecting shaft 134 is rotatably connected to the center of the first gear 133. The first gear 133 is meshed with a second gear 135 at the top, and a rotating rod 136 is fixedly connected to the center of the second gear 135.

[0033] The left side of the rotating rod 136 passes through the lifting base 131, the second shielding shell 12, and the connecting block 121 respectively. A ratchet wheel 123 is fixedly connected to the outer surface of the rotating rod 136, and the left side of the rotating rod 136 is fixedly connected to the right side of the rotating handle 122.

[0034] A latch 124 is inserted into the front of the ratchet wheel 123. A pressing rod 241 is fixedly connected to the front of the latch 124. A circular hole is formed inside the pressing rod 241, and a fixing shaft 242 is rotatably connected to the inner wall of the circular hole. An opening is formed in the front of the connecting block 121.

[0035] A limiting block 244 is fixedly connected to the front inner wall of the connecting block 121. A elastic piece 243 is fixedly connected to the top of the pressing rod 241, and the top of the elastic piece 243 is fixedly connected to the front inner wall of the connecting block 121. Stabilizing columns 14 are fixedly connected to the four corners of the bottom of the sample stage 11. The bottom of the stabilizing column 14 is slidably connected to a stabilizing rod 141, and the bottom of the stabilizing rod 141 is fixedly connected to the top of the base 1. The top of the lifting rod 132 is fixedly connected to the bottom of the sample stage 11.

[0036] The left and right sides of the connecting shaft 134 are fixedly connected to the left and right sides of the inner wall of the cavity respectively. The bottom of the latch 124 is in contact with the top of the limiting block 244, and the left and right sides of the fixing shaft 242 are fixedly connected to the left and right sides of the inner wall of the opening respectively.

[0037] A specific application of this embodiment is:

[0038] During use, pull the pull plate 32 to drive the cover plate 113 to move forward. Then, the bottom of the cover plate 113 rotates on the rotating shaft 31. Since the bottom of the latch rod 21 is arc-shaped, after the cover plate 113 contacts the latch rod 21, it will push the latch rod 21 upward, thus entering the fixing block 112. At the same time, the latch rod 21 squeezes the spring 22, enabling the cover plate 113 to smoothly leave the latch rod 21, and the cover plate 113 can be opened. Subsequently, pull out the chuck at the bottom of the sample stage 11, place the wafer on the chuck, then push the chuck into the sample stage 11, and then push the cover plate 113 upward to close the front of the sample stage 11. After the cover plate 113 passes through the latch rod 21, it will contact the limit rod 33, and then the latch rod 21 pops out under the elastic action of the spring 22 to squeeze and fix the cover plate 113, so that the cover plate 113 can play a role in shading, improving the observation effect of the subsequent use of the microscope. When it is necessary to adjust the height of the sample stage 11, rotate the knob 122 counterclockwise to drive the rotating rod 136 to rotate. Then, the rotating rod 136 will drive the ratchet wheel 123 and the second gear 135 to rotate respectively. When the ratchet wheel 123 rotates, it will push the latch block 124 upward. Then, the center of the pressure rod 241 rotates on the fixed shaft 242 and squeezes the elastic piece 243, enabling the latch block 124 to smoothly reset under the elastic action and thus snap into the ratchet wheel 123 to prevent the ratchet wheel 123 from rotating clockwise. At the same time, the second gear 135 drives the first gear 133 to rotate clockwise in the connecting shaft 134, and the first gear 133 drives the lifting rod 132 to move upward. The bottom of the lifting rod 132 drives the limit plate 321 to move together, making the movement of the lifting rod 132 more stable, so that the sample stage 11 rises. The first shielding case 111 slides on the second shielding case 12 to play a role in shading. At the same time, the sample stage 11 drives the stabilizing column 14 to slide on the stabilizing rod 141, improving the stability of the sample stage 11 and enabling the sample stage 11 to move in a straight line. When it is necessary to lower the height of the sample stage 11, press the pressure rod 241 to lift the latch block 124 and release the fixation of the ratchet wheel 123. Then, the sample stage 11 will move downward under its own gravity, and the lifting adjustment can be completed. The operation is convenient, facilitating the staff to better use the microscope to magnify and observe the sample.

[0039] 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 this utility model. 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.

[0040] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the utility model, so that those skilled in the relevant technical field can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An atomic force microscope sample stage, comprising a base (1), a sample stage (11) is arranged above the base (1), a stop shell (111) is fixedly connected to the bottom of the sample stage (11), and a fixed block (112) is fixedly connected to the front of the sample stage (11), characterized in that: A cover plate (113) is arranged below the fixed block (112); a second stopper shell (12) is fixedly connected to the top of the base (1); a connecting block (121) is fixedly connected to the left side of the second stopper shell (12); a turning handle (122) is arranged on the left side of the connecting block (121); and a lifting assembly (13) is arranged inside the second stopper shell (12); The lifting assembly (13) comprises a lifting seat (131), a cavity is provided inside the lifting seat (131), a sliding hole is provided on the top of the lifting seat (131), a lifting rod (132) is slidably connected to the inner wall of the sliding hole, and the front side of the lifting rod (132) is meshedly connected to a gear 1 (133).

2. The atomic force microscope sample stage according to claim 1, characterized in that: A chuck is arranged at the center of the bottom of the sample stage (11), a receiving groove is provided inside the fixed block (112), a clamping rod (21) is slidably connected to the inner wall of the receiving groove, a spring (22) is fixedly connected to the top of the clamping rod (21), and the top of the spring (22) is fixedly connected to the top of the inner wall of the receiving groove.

3. The atomic force microscope sample stage according to claim 2, characterized in that: A rotation groove is provided inside the cover plate (113), and a rotation shaft (31) is rotatably connected to the inner wall of the rotation groove. The left and right sides of the rotation shaft (31) are fixedly connected to the outer surface of the retaining shell (111). A pull plate (32) is fixedly connected to the front of the cover plate (113), and the back of the cover plate (113) contacts a limit rod (33). The top of the limit rod (33) is fixedly connected to the bottom of the sample stage (11).

4. The atomic force microscope sample stage according to claim 3, characterized in that: The bottom of the lifting rod (132) is fixedly connected to a limit plate (321), the outer surface of the limit plate (321) contacts the inner wall of the cavity, the center of the gear 1 (133) is rotatably connected to a connecting shaft (134), the top of the gear 1 (133) is meshingly connected to a gear 2 (135), and the center of the gear 2 (135) is fixedly connected to a rotating rod (136).

5. The atomic force microscope sample stage according to claim 4, characterized in that: The left side of the rotating rod (136) passes through the lifting seat (131), the second stop shell (12) and the connecting block (121) respectively, the outer surface of the rotating rod (136) is fixedly connected with a ratchet (123), and the left side of the rotating rod (136) is fixedly connected to the right side of the turning handle (122).

6. The atomic force microscope sample stage according to claim 5, characterized in that: The ratchet (123) is plugged with a clamping block (124) on the front side, the clamping block (124) is fixedly connected with a pressure rod (241) on the front side, a circular hole is provided inside the pressure rod (241), a fixed shaft (242) is rotatably connected to the inner wall of the circular hole, and an opening is provided on the front side of the connection block (121).

7. The atomic force microscope sample stage according to claim 6, characterized in that: The front side of the inner wall of the connecting block (121) is fixedly connected to a limiting block (244); the top of the pressure rod (241) is fixedly connected to a spring sheet (243); the top of the spring sheet (243) is fixedly connected to the front side of the inner wall of the connecting block (121); the four corners of the bottom of the sample platform (11) are fixedly connected to stabilizing columns (14); the bottom of the stabilizing column (14) is slidably connected to a stabilizing rod (141); the bottom of the stabilizing rod (141) is fixedly connected to the top of the base (1); and the top of the lifting rod (132) is fixedly connected to the bottom of the sample platform (11).

8. The atomic force microscope sample stage according to claim 7, characterized in that: The left and right sides of the connecting shaft (134) are respectively fixedly connected to the left and right sides of the inner wall of the cavity, the bottom of the clamping block (124) contacts the top of the limiting block (244), and the left and right sides of the fixed shaft (242) are respectively fixedly connected to the left and right sides of the inner wall of the opening.

Images