Electron microscope multi-functional stage
By combining an electric telescopic rod, a bidirectional lead screw, and a motor drive, the adaptability of the electron microscope stage to glass slides of different sizes is solved, enabling flexible positioning and fixation and improving the convenience of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG ZEKANG TESTING SERVICE CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-26
AI Technical Summary
Existing electron microscope stages cannot accommodate glass slide samples of different sizes, leading to inconvenience in testing.
A multifunctional stage for electron microscopes was designed. Through a combination of an electric telescopic rod, a bidirectional lead screw, and a motor drive, the position and positioning of the slides can be adjusted, including lateral and longitudinal movements. Combined with the use of clamps and pressure plates, slides of different sizes can be fixed.
It enables flexible positioning and fixation of glass slides of different sizes, improving the flexibility and convenience of sample testing.
Smart Images
Figure CN224416768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electron microscope stage technology, specifically a multifunctional electron microscope stage. Background Technology
[0002] The stage, also called the microscope stage, is part of an electron microscope. It is located below or above the objective lens and is used to place the specimen to be observed.
[0003] A search revealed that the announcement number is CN217304969U, entitled "A Multifunctional Stage for Electron Microscopy, Including a Base Stage." Research and analysis revealed that although it has the advantages of facilitating sample recording and enhancing conductivity, it also has the following disadvantages to some extent.
[0004] For example, during the use of this device, the size of the fixed position is fixed, and it can only fix the same size of the lever, which is not convenient for testing different samples and is not convenient for staff to use. In order to solve the above technical problems, we designed a multifunctional stage for electron microscopes. Utility Model Content
[0005] The purpose of this invention is to provide a multifunctional stage for electron microscopes, which has the advantage of convenient positioning of slides of different sizes. This solves the problem that the size of the fixed position is fixed during the use of the device, which can only fix slides of the same size, making it inconvenient to test different samples and inconvenient for staff to use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional stage for an electron microscope, comprising a stage frame, a mounting assembly at the bottom of the stage frame, a mounting shell within the inner cavity of the stage frame, an adjustment assembly within the inner cavity of the mounting shell, a support plate welded to the opposite side of the mounting shell, a glass slide placed on the top of the support plate, a fixed shell connected to the top of the stage frame by bolts, a second bidirectional lead screw rotatably connected to the inner cavity of the fixed shell, a second motor connected to the left side of the fixed shell by bolts, a drive shaft of the second motor connected to the second bidirectional lead screw by bolts, a second threaded block threaded onto the surface of the second bidirectional lead screw, a connecting block connected to the front side of the second threaded block by bolts, an extension plate rotatably connected to the top of the connecting block, a movable rod penetrating through the top of the extension plate, a pressure plate connected to the bottom of the movable rod by bolts, and a spring fitted onto the surface of the movable rod.
[0007] Preferably, the mounting assembly includes an electric telescopic rod, the top of which is connected to the platform frame by bolts, a connecting plate is provided at the bottom of the platform frame, the bottom of the electric telescopic rod extends through to the bottom of the connecting plate, and a mounting plate is connected to the rear side of the connecting plate by bolts.
[0008] Preferably, the adjustment assembly includes a first motor, the rear side of which is connected to the mounting housing by bolts, a first bidirectional lead screw is fixedly sleeved on the drive shaft of the first motor, a first threaded block is threaded on the surface of the first bidirectional lead screw, and a clamping plate is welded to the surface of the first threaded block.
[0009] Preferably, the inner cavity of the mounting shell is bolted to a positioning plate, the surface of the first bidirectional lead screw is rotatably connected to the positioning plate, and the thread directions on the front and rear sides of the surface of the first bidirectional lead screw are opposite.
[0010] Preferably, the inner cavity of the fixed shell is welded with a support plate, and the surface of the second bidirectional lead screw is rotatably connected to the support plate.
[0011] Preferably, a threaded rod is provided through the top of the extension plate, a rubber block is rotatably connected to the bottom of the threaded rod, the bottom of the rubber block contacts the connecting block, and the surface of the threaded rod is threadedly connected to the extension plate.
[0012] Preferably, guide plates are welded to the front and rear sides of the mounting shell, the bottom of the connecting block is welded to the guide plates, and sliding grooves are provided on the front and rear sides of the inner cavity of the platform frame. The surface of the guide plate is slidably connected to the sliding grooves, and the threads on both sides of the surface of the second bidirectional lead screw are in opposite directions.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model uses pre-set bolts to install the stage frame, connecting plate, and electric telescopic rod onto the surface of the electron microscope. The electric telescopic rod moves up and down, causing the stage frame, mounting shell, guide plate, support plate, and slide to move up and down, adjusting the position of the slide to facilitate observation of the sample carried on the slide.
[0015] 2. In this invention, the transmission shaft of the second motor drives the second bidirectional lead screw to rotate. The second bidirectional lead screw drives the second threaded block, connecting block, mounting shell, guide plate, and support plate to move laterally, adjusting the distance between the support plates. After adjustment, a glass slide with the sample is placed on top of the support plate. The transmission shaft of the first motor drives the first bidirectional lead screw to rotate, which in turn drives the first threaded block and clamping plate to move back and forth, bringing the clamping plate into contact with the glass slide. The clamping plate positions the glass slide. Then, the extension plate rotates, driving the movable rod, spring, and pressure plate to rotate, moving the pressure plate to the top of the glass slide. Under the action of the spring force, the bottom of the pressure plate contacts the glass slide, pressing down and positioning the glass slide. Attached Figure Description
[0016] Figure 1This is an isometric drawing of the structure of this utility model;
[0017] Figure 2 This is a perspective view of the connecting plate and mounting plate of this utility model;
[0018] Figure 3 This is a perspective view of the mounting shell and clamping plate of this utility model;
[0019] Figure 4 This is a perspective view of the second motor and pressure plate of this utility model.
[0020] In the diagram: 1. Platform frame; 2. Slide groove; 3. Mounting shell; 4. Guide plate; 5. First motor; 6. First double-acting lead screw; 7. First threaded block; 8. Support plate; 9. Clamping plate; 10. Glass slide; 11. Connecting plate; 12. Electric telescopic rod; 13. Mounting plate; 14. Fixed shell; 15. Second motor; 16. Second double-acting lead screw; 17. Second threaded block; 18. Connecting block; 19. Extension plate; 20. Threaded rod; 21. Rubber block; 22. Movable rod; 23. Spring; 24. Pressure plate; 25. Mounting assembly; 26. Adjustment assembly. Detailed Implementation
[0021] Please see Figures 1-4 A multifunctional stage for an electron microscope includes a stage frame 1. A mounting assembly 25 is located at the bottom of the stage frame 1. A mounting shell 3 is located inside the stage frame 1. An adjustment assembly 26 is located inside the mounting shell 3. A support plate 8 is welded to the opposite side of the mounting shell 3. A glass slide 10 is placed on the top of the support plate 8. A fixed shell 14 is bolted to the top of the stage frame 1. A second bidirectional lead screw 16 is rotatably connected to the inner cavity of the fixed shell 14. A second motor 15 is bolted to the left side of the fixed shell 14. The drive shaft of the second motor 15 is bolted to the second bidirectional lead screw 16. A second threaded block 17 is threaded onto the surface of the second bidirectional lead screw 16. A connecting block 18 is bolted to the front of the second threaded block 17. An extension plate 19 is rotatably connected to the top of the connecting block 18. A movable rod 22 is threaded through the top of the extension plate 19. A pressure plate 24 is bolted to the bottom of the movable rod 22. A spring 23 is fitted onto the surface of the movable rod 22.
[0022] Please see Figure 1 and Figure 2 The mounting assembly 25 includes an electric telescopic rod 12. The top of the electric telescopic rod 12 is connected to the stage frame 1 by bolts. A connecting plate 11 is provided at the bottom of the stage frame 1. The bottom of the electric telescopic rod 12 extends through to the bottom of the connecting plate 11. A mounting plate 13 is connected to the rear side of the connecting plate 11 by bolts. By setting the connecting plate 11, the electric telescopic rod 12 and the mounting plate 13, the stage frame 1 can be easily installed and adjusted, and the samples carried by the glass slide 10 can be easily tested.
[0023] Please see Figure 1 and Figure 3 The adjustment assembly 26 includes a first motor 5. The rear side of the first motor 5 is connected to the mounting housing 3 by bolts. The drive shaft of the first motor 5 is fixedly sleeved with a first bidirectional lead screw 6. The surface of the first bidirectional lead screw 6 is threaded with a first threaded block 7. The surface of the first threaded block 7 is welded with a clamping plate 9. By setting the first motor 5 and the first bidirectional lead screw 6, it is easy to drive the first threaded block 7 and the clamping plate 9 to move, and it is easy to adjust the position of the clamping plate 9.
[0024] Please see Figure 3 The inner cavity of the mounting shell 3 is connected to a positioning plate by bolts. By setting the positioning plate, it is easy to support and position the first bidirectional lead screw 6 and facilitate the normal rotation of the first bidirectional lead screw 6. The surface of the first bidirectional lead screw 6 is rotatably connected to the positioning plate, and the thread directions on the front and rear sides of the surface of the first bidirectional lead screw 6 are opposite.
[0025] Please see Figure 1 and Figure 4 The inner cavity of the fixed shell 14 is welded with a support plate. By setting the support plate, the second bidirectional lead screw 16 can be easily supported and positioned, and the second bidirectional lead screw 16 can be easily rotated normally. The surface of the second bidirectional lead screw 16 is rotatably connected to the support plate.
[0026] Please see Figure 1 and Figure 4 A threaded rod 20 is provided through the top of the extension plate 19, and a rubber block 21 is rotatably connected to the bottom of the threaded rod 20. By setting the threaded rod 20 and the rubber block 21, the extension plate 19 can be positioned by the friction between the rubber block 21 and the connecting block 18, which can effectively prevent the extension plate 19 from rotating randomly. The bottom of the rubber block 21 contacts the connecting block 18, and the surface of the threaded rod 20 is threadedly connected to the extension plate 19.
[0027] Please see Figure 1 and Figure 3 Guide plates 4 are welded to the front and rear sides of the mounting shell 3. The bottom of the connecting block 18 is welded to the guide plate 4. Slide grooves 2 are provided on the front and rear sides of the inner cavity of the frame 1. By setting slide grooves 2 and guide plates 4, the mounting shell 3 can be easily guided and the mounting shell 3 can be easily moved stably. The surface of the guide plate 4 is slidably connected to the slide groove 2. The threads on both sides of the surface of the second bidirectional lead screw 16 are in opposite directions.
[0028] In use, the device is controlled by an external controller. The stage frame 1, connecting plate 11, and electric telescopic rod 12 are mounted to the electron microscope surface via preset bolts passing through the mounting plate 13. The second motor 15 drives the second bidirectional lead screw 16 to rotate, which in turn drives the second threaded block 17, connecting block 18, mounting shell 3, guide plate 4, and support plate 8 to move laterally, adjusting the distance between the support plates 8. After adjustment, a glass slide 10 with the sample is placed on top of the support plate 8. The first motor 5 then drives the first bidirectional lead screw 6 to rotate, which in turn drives the first threaded block... 7 and clamping plate 9 move back and forth, so that clamping plate 9 contacts glass slide 10. Clamping plate 9 positions glass slide 10. Then, by rotating extension plate 19, movable rod 22, spring 23 and pressure plate 24 are rotated, and pressure plate 24 is moved to the top of glass slide 10. Under the action of spring 23, the bottom of pressure plate 24 contacts glass slide 10. Pressure plate 24 presses down and positions glass slide 10. Electric telescopic rod 12 moves up and down, so that stage frame 1, mounting shell 3, guide plate 4, support plate 8 and glass slide 10 are moved up and down, so that the position of glass slide 10 is adjusted, so that the sample carried by glass slide 10 can be observed.
[0029] In summary, this multifunctional electron microscope stage, through the rubber block 21, movable rod 22, spring 23, pressure plate 24, mounting assembly 25, and adjustment assembly 26, solves the problem that the size of the fixed position is fixed during the use of the device, which can only fix the same size of the lever, making it inconvenient to test different samples and inconvenient for staff to use.
Claims
1. A multifunctional stage for an electron microscope, comprising a stage frame (1), characterized in that: The bottom of the frame (1) is provided with an installation assembly (25), the inner cavity of the frame (1) is provided with an installation shell (3), the inner cavity of the installation shell (3) is provided with an adjustment assembly (26), a support plate (8) is welded to the opposite side of the installation shell (3), a glass slide (10) is placed on the top of the support plate (8), the top of the frame (1) is connected to a fixing shell (14) by bolts, the inner cavity of the fixing shell (14) is rotatably connected to a second bidirectional lead screw (16), and the left side of the fixing shell (14) is connected to a second motor (15) by bolts. The drive shaft of the second motor (15) is connected to the second bidirectional lead screw (16) by bolts. The surface of the second bidirectional lead screw (16) is threaded with a second threaded block (17). The front side of the second threaded block (17) is connected to a connecting block (18) by bolts. The top of the connecting block (18) is rotatably connected to an extension plate (19). The top of the extension plate (19) is provided with a movable rod (22). The bottom of the movable rod (22) is connected to a pressure plate (24) by bolts. The surface of the movable rod (22) is fitted with a spring (23).
2. The multifunctional stage for an electron microscope according to claim 1, characterized in that: The mounting assembly (25) includes an electric telescopic rod (12), the top of which is connected to the platform frame (1) by bolts. A connecting plate (11) is provided at the bottom of the platform frame (1). The bottom of the electric telescopic rod (12) extends through to the bottom of the connecting plate (11). A mounting plate (13) is connected to the rear side of the connecting plate (11) by bolts.
3. The multifunctional stage for an electron microscope according to claim 1, characterized in that: The adjustment assembly (26) includes a first motor (5), the rear side of which is connected to the mounting housing (3) by bolts. The drive shaft of the first motor (5) is fixedly fitted with a first bidirectional lead screw (6), and the surface of the first bidirectional lead screw (6) is threaded with a first threaded block (7). The surface of the first threaded block (7) is welded with a clamping plate (9).
4. The multifunctional stage for an electron microscope according to claim 3, characterized in that: The inner cavity of the mounting shell (3) is connected to a positioning plate by bolts. The surface of the first bidirectional lead screw (6) is rotatably connected to the positioning plate. The thread directions on the front and rear sides of the surface of the first bidirectional lead screw (6) are opposite.
5. The multifunctional stage for an electron microscope according to claim 1, characterized in that: The inner cavity of the fixed shell (14) is welded with a support plate, and the surface of the second bidirectional lead screw (16) is rotatably connected to the support plate.
6. The multifunctional stage for an electron microscope according to claim 1, characterized in that: A threaded rod (20) is provided through the top of the extension plate (19), and a rubber block (21) is rotatably connected to the bottom of the threaded rod (20). The bottom of the rubber block (21) contacts the connecting block (18), and the surface of the threaded rod (20) is threadedly connected to the extension plate (19).
7. The multifunctional stage for an electron microscope according to claim 1, characterized in that: Guide plates (4) are welded to the front and rear sides of the mounting shell (3). The bottom of the connecting block (18) is welded to the guide plate (4). Slide grooves (2) are opened on the front and rear sides of the inner cavity of the frame (1). The surface of the guide plate (4) is slidably connected to the slide groove (2). The threads on both sides of the surface of the second bidirectional lead screw (16) are in opposite directions.