Low-temperature probe of atomic force microscope
By adding friction between the fixed clamp and the slide rod in the device of the atomic force microscope low-temperature probe, the problem of sample position shift when the probe is moved is solved, and the detection efficiency and practicality of the device are improved.
Patent Information
- Application Number
- CN202421035387.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The diameter of the atomic force microscope low-temperature probe is small, which causes the staff to easily shift the sample position due to excessive force when moving the probe, which reduces the detection efficiency.
By providing adjustment components and fixing components in the atomic force microscope cryogenic probe device, the friction between the fixing clamp and the outer surface of the slide rod is increased, ensuring that the probe adjusts the sample position more stably during operation.
It effectively avoids sample position deviation caused by poor grasp of force, improves the detection efficiency of staff, and ensures that the slides are not damaged when fixed, improving the practicality of the device.
Smart Images
Figure CN223006175U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of microscope manufacturing, and particularly relates to a cryogenic probe for an atomic force microscope. Background Art
[0002] The cryogenic probe (CQDAFM) of the atomic force microscope can achieve nano-scale magnetic imaging that cannot be achieved in the current condensed matter system, which is very helpful for studying the magnetic phase transition of solid substances at low temperatures, and can also be compatible with the mechanism research of superconductors.
[0003] When the atomic force microscope detects a sample, the staff needs to adjust the position of the sample by moving the cryogenic probe so that the microscope can better detect the sample. Since the diameter of the cryogenic probe is small, when the staff moves the cryogenic probe, it is easy to cause a serious deviation in the position of the sample due to excessive force, and the position of the sample needs to be readjusted to continue detecting the sample, which reduces the detection efficiency of the staff. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a cryogenic probe for an atomic force microscope. Through an adjusting component, the device can increase the friction force between the fixed clamping block and the outer surface of the sliding rod, solving the problem that since the diameter of the cryogenic probe is small, when the staff moves the cryogenic probe, it is easy to cause a serious deviation in the position of the sample due to excessive force, and the position of the sample needs to be readjusted to continue detecting the sample, which reduces the detection efficiency of the staff.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a cryogenic probe for an atomic force microscope, including a base. A console is fixedly connected to the top of the base. A fixed frame is fixedly connected to the top of the console. A cryogenic objective lens barrel is fixedly connected to the front of the fixed frame. A first groove is opened at the top of the console. A fixed seat is fixedly connected to the bottom of the inner wall of the first groove. A fixing component and an adjusting component are respectively arranged inside the first groove. The number of the adjusting components is two. The two adjusting components are symmetrically arranged with the fixed seat as the center. The parts included in the two adjusting components are the same. The adjusting component includes a slide rail. The bottom of the slide rail is fixedly connected to the top of the inner wall of the first groove. A second groove is opened inside the slide rail. A sliding rod is fixedly connected to the inner wall of the second groove. A moving seat is slidably connected to the outer surface of the sliding rod. A third groove is opened inside the moving seat. By setting the adjusting component, it is convenient for the staff to operate the cryogenic probe to adjust the position of the sample, and the situation that the staff needs to perform multiple detections due to poor control of the force will not occur, improving the detection efficiency of the staff.
[0007] Further, a circular groove one is provided on the left side of the groove three. A threaded rod is rotatably connected to the inner wall of the circular groove one. A second turning handle is fixedly connected to the left side of the threaded rod. A connecting frame is fixedly connected to the inner wall of the groove three. The right side of the threaded rod is rotatably connected to the inner wall of the connecting frame. A moving block is threadedly connected to the outer surface of the threaded rod. Square grooves two are provided on the front and back inner walls of the groove three. The front and back inner walls of the two square grooves two are respectively slidably connected to the front and back of the moving block. A fixing rod is fixedly connected to the right side of the moving block. By providing the square groove two, the moving block will not rotate along with the rotation of the threaded rod during the moving process.
[0008] Further, the number of the fixing rods is two. Moving clamping blocks are fixedly connected to the right sides of the two fixing rods. A fixed clamping block is fixedly connected to the inner wall of the groove three. The left side of the fixed clamping block contacts the outer surface of the sliding rod. By providing the moving clamping blocks, the friction between the clamping blocks and the sliding rod can be increased, enabling the low-temperature probe to be adjusted better.
[0009] Further, a chute is provided on the top of the sliding rail. The outer surface of the moving seat is slidably connected to the inner wall of the chute. A probe seat is fixedly connected to the top of the moving seat. A probe is fixedly connected to the right side of the probe seat. By providing the chute, the moving seat is more stable during the moving process.
[0010] Further, the fixing component includes a placing table. The bottom of the placing table is fixedly connected to the top of the fixing seat. A groove four is provided inside the fixing seat. A fixing block is fixedly connected to the top of the inner wall of the groove four. The number of the fixing blocks is two. Circular grooves two are provided inside the two fixing blocks. Bidirectional threaded rods are rotatably connected to the inner walls of the two circular grooves two. A first turning handle is fixedly connected to the front of the bidirectional threaded rod. By providing the fixing component, the clamping blocks will not cause damage to the glass slide when it is fixed, improving the practicability of the device.
[0011] Further, clamping blocks are threadedly connected to the outer surface of the bidirectional threaded rod. The number of the clamping blocks is two. Square grooves one are provided inside the fixing seat. The number of the square grooves one is two. By providing the clamping blocks, the glass slide can be prevented from moving during the detection.
[0012] Further, the inner walls of the two square grooves one are respectively slidably connected to the outer surfaces of the two clamping blocks. Rubber pads are fixedly connected to the sides of the two clamping blocks that are close to each other. By providing the rubber pads, the clamping blocks will not cause damage to the glass slide when it is fixed.
[0013] The utility model has the following beneficial effects:
[0014] 1. The utility model is provided with an adjusting component. Specifically, after the probe is adjusted to the accurate position, turn the second knob clockwise to make the right side contact with the left side of the fixed clamping block, increasing the friction between the fixed clamping block and the outer surface of the sliding rod, so that the moving seat will not move easily during the operation, facilitating the staff to operate the cryogenic probe to adjust the position of the sample, and preventing the staff from performing multiple detections due to poor control of the force, thus improving the detection efficiency of the staff.
[0015] 2. The utility model is provided with a fixing component. Specifically, place the glass slide on the top of the placement table, and turn the first knob clockwise to fix the glass slide on the top of the placement table. When adjusting the position of the probe, the glass slide will not move. Since the rubber pad is provided on the clamping block for fixing the movement of the glass slide, the clamping block will not cause damage to the glass slide when it is fixed, improving the practicability of the device.
[0016] 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
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the 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 utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the overall structure of the fixed seat of the utility model;
[0020] Figure 3 It is a schematic diagram of the overall structure of the placement table of the utility model;
[0021] Figure 4 It is a schematic diagram of the overall structure of the bidirectional threaded rod of the utility model;
[0022] Figure 5 It is a schematic diagram of the overall structure of the slide rail of the utility model;
[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the top of the slide rail of the utility model.
[0024] In the drawings, the list of components represented by each reference numeral is as follows:
[0025] 1. Base; 2. Operating table; 3. Fixed frame; 4. Low-temperature objective lens barrel; 5. Fixed seat; 11. Fixing component; 111. Placing table; 112. Fixed block; 113. Bidirectional threaded rod; 114. First turning handle; 115. Clamping block; 116. Rubber pad; 22. Adjusting component; 221. Slide rail; 222. Slide bar; 223. Moving seat; 224. Probe seat; 225. Probe; 226. Fixed clamping block; 227. Threaded rod; 228. Connecting frame; 229. Moving block; 230. Second turning handle; 231. Fixed rod; 232. Moving clamping block. Detailed implementation manner
[0026] 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 of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] Please refer to Figure 1-6 As shown in the figure, the present utility model is a low-temperature probe for an atomic force microscope, including a base 1. The top of the base 1 is fixedly connected with an operating table 2. The top of the operating table 2 is fixedly connected with a fixed frame 3. The front of the fixed frame 3 is fixedly connected with a low-temperature objective lens barrel 4. A first groove is opened at the top of the operating table 2. The bottom of the inner wall of the first groove is fixedly connected with a fixed seat 5. A fixing component 11 and an adjusting component 22 are respectively arranged inside the first groove. The number of the adjusting components 22 is two. The two adjusting components 22 are symmetrically arranged with the fixed seat 5 as the center. The parts included in the two adjusting components 22 are the same. The adjusting component 22 includes a slide rail 221. The bottom of the slide rail 221 is fixedly connected with the top of the inner wall of the first groove. A second groove is opened inside the slide rail 221. A slide bar 222 is fixedly connected to the inner wall of the second groove. A moving seat 223 is slidably connected to the outer surface of the slide bar 222. A third groove is opened inside the moving seat 223.
[0028] A first circular groove is opened on the left side of the third groove. A threaded rod 227 is rotatably connected to the inner wall of the first circular groove. The left side of the threaded rod 227 is fixedly connected with a second turning handle 230. A connecting frame 228 is fixedly connected to the inner wall of the third groove. The right side of the threaded rod 227 is rotatably connected to the inner wall of the connecting frame 228. A moving block 229 is threadedly connected to the outer surface of the threaded rod 227. Square grooves are opened on the front and back of the inner wall of the third groove. The front and back of the inner wall of the two square grooves are respectively slidably connected to the front and back of the moving block 229. The right side of the moving block 229 is fixedly connected with a fixed rod 231.
[0029] There are two fixing rods 231. On the right side of both fixing rods 231, a moving clamping block 232 is fixedly connected. On the inner wall of the third groove, a fixed clamping block 226 is fixedly connected. The left side of the fixed clamping block 226 is in contact with the outer surface of the sliding rod 222.
[0030] On the top of the sliding rail 221, a chute is provided. The outer surface of the moving seat 223 is slidably connected to the inner wall of the chute. On the top of the moving seat 223, a probe seat 224 is fixedly connected. On the right side of the probe seat 224, a probe 225 is fixedly connected. By setting the adjusting assembly 22, specifically, when the probe 225 is adjusted to the accurate position, rotate the second knob 230 clockwise so that the right side of the fixing rod 231 can be in contact with the left side of the fixed clamping block 226, increasing the friction between the fixed clamping block 226 and the outer surface of the sliding rod 222, so that the moving seat will not move easily during the operation, facilitating the staff to operate the cryogenic probe to adjust the position of the sample, and preventing the staff from performing multiple detections due to poor control of the force, improving the detection efficiency of the staff.
[0031] The fixing assembly 11 includes a placement table 111. The bottom of the placement table 111 is fixedly connected to the top of the fixed seat 5. Inside the fixed seat 5, a fourth groove is provided. At the top of the inner wall of the fourth groove, a fixing block 112 is fixedly connected.
[0032] There are two fixing blocks 112. Inside both fixing blocks 112, a second circular groove is provided. On the inner walls of both second circular grooves, a bidirectional threaded rod 113 is rotatably connected. On the front of the bidirectional threaded rod 113, a first knob 114 is fixedly connected.
[0033] The outer surface of the bidirectional threaded rod 113 is threadedly connected to a clamping block 115. There are two clamping blocks 115. Inside the fixed seat 5, a first square groove is provided. There are two first square grooves.
[0034] The inner walls of the two first square grooves are respectively slidably connected to the outer surfaces of the two clamping blocks 115. On the sides where the two clamping blocks 115 are close to each other, a rubber pad 116 is fixedly connected. By setting the fixing assembly 11, specifically, place the glass slide on the top of the placement table 111, and rotate the first knob 114 clockwise to fix the glass slide on the top of the placement table 111, so that the glass slide will not move when adjusting the position of the probe 225. Since the rubber pad 116 is provided on the clamping block 115 to fix the movement of the glass slide, the clamping block will not cause damage to the glass slide when it is fixed, improving the practicability of the device.
[0035] A specific application of this embodiment is as follows: First, place the sample to be detected on a glass slide, and place the glass slide on the top of the placement table 111. Rotate the first turning handle 114 clockwise to drive the bidirectional threaded rod 113 to rotate inside the two fixed blocks 112. The clockwise rotation of the bidirectional threaded rod 113 drives the two clamping blocks 115 to move closer to each other. Two first square grooves are formed at the top of the fixed seat 5, enabling the tops of the clamping blocks 115 to extend to the top of the fixed seat 5. When the two rubber pads 116 contact the glass slide placed on the top of the placement table 111, the staff stops rotating the first turning handle 114, so that the glass slide can be fixed on the top of the placement table 111 and will not move when adjusting the position of the probe 225, improving the accuracy of the detection results of the device. Since the rubber pads 116 are provided for the clamping blocks 115 to fix the movement of the glass slide, the clamping blocks will not cause damage to the glass slide when it is fixed, improving the practicality of the device. After the glass slide is fixed, when adjusting the position of the probe 225 by moving the two moving seats 223 to drive the probe holder 224 and the probe 225, the probe 225 can be adjusted to the accurate position as required. After the probe 225 is adjusted to the accurate position, rotate the second turning handle 230 clockwise to drive the threaded rod 227 to rotate. When the threaded rod 227 rotates, it will drive the moving block 229 to move. During the movement of both sides of the moving block 229, they will slide along the inner walls of the second square grooves inside the moving seats 223, enabling the moving block 229 to only move left and right and not rotate along with the threaded rod 227. Since the second turning handle 230 continues to rotate clockwise, the moving block 229 pushes the fixed rod 231 and the moving clamping block 232 to move to the right, enabling the right side of the fixed rod 231 to contact the left side of the fixed clamping block 226, increasing the friction between the fixed clamping block 226 and the outer surface of the sliding rod 222, so that the moving seat will not move easily during operation, facilitating the staff to operate the cryogenic probe to adjust the sample, and eliminating the need for the staff to perform multiple detections due to poor force control, improving the detection efficiency of the staff.
[0036] 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 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.
[0037] The above-described preferred embodiments of the utility model disclosed are only used to assist in the description of 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 art 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. A cryogenic probe for an atomic force microscope, comprising a base (1), an operating table (2) fixedly connected to the top of the base (1), a fixing frame (3) fixedly connected to the top of the operating table (2), a cryogenic objective lens barrel (4) fixedly connected to the front of the fixing frame (3), a groove (1) formed on the top of the operating table (2), a fixing seat (5) fixedly connected to the bottom of the inner wall of the groove (1), characterized in that: A fixing component (11) and an adjusting component (22) are respectively arranged inside the groove 1; The number of the adjustment components (22) is two, and the two adjustment components (22) are symmetrically arranged with the fixed seat (5) as the center. The parts contained in the two adjustment components (22) are the same. The adjustment components (22) include a slide rail (221), the bottom of the slide rail (221) is fixedly connected to the top of the inner wall of the groove one, the slide rail (221) is provided with a groove two, the inner wall of the groove two is fixedly connected with a slide rod (222), the outer surface of the slide rod (222) is slidably connected with a movable seat (223), and the movable seat (223) is provided with a groove three.
2. The atomic force microscope cryogenic probe according to claim 1, characterized in that: A circular groove 1 is provided on the left side of the groove 3, a threaded rod (227) is rotatably connected to the inner wall of the circular groove 1, a turning handle 2 (230) is fixedly connected to the left side of the threaded rod (227), a connecting frame (228) is fixedly connected to the inner wall of the groove 3, the right side of the threaded rod (227) is rotatably connected to the inner wall of the connecting frame (228), a moving block (229) is threadedly connected to the outer surface of the threaded rod (227), square grooves 2 are provided on the front and back sides of the inner wall of the groove 3, the inner walls of the two square grooves 2 are respectively slidably connected to the front and back sides of the moving block (229), and a fixing rod (231) is fixedly connected to the right side of the moving block (229).
3. The atomic force microscope cryogenic probe according to claim 2, characterized in that: There are two fixed rods (231), and the right sides of the two fixed rods (231) are fixedly connected with a movable clamping block (232). The inner wall of the groove is fixedly connected with a fixed clamping block (226), and the left side of the fixed clamping block (226) is in contact with the outer surface of the sliding rod (222).
4. The atomic force microscope cryogenic probe according to claim 3, characterized in that: A slide groove is provided on the top of the slide rail (221); the outer surface of the movable seat (223) is slidably connected to the inner wall of the slide groove; a probe seat (224) is fixedly connected to the top of the movable seat (223); and a probe (225) is fixedly connected to the right side of the probe seat (224).
5. The atomic force microscope cryogenic probe according to claim 1, characterized in that: The fixing assembly (11) comprises a placing platform (111), the bottom of the placing platform (111) is fixedly connected to the top of the fixing seat (5), a groove four is provided inside the fixing seat (5), and a fixing block (112) is fixedly connected to the top of the inner wall of the groove four.
6. The atomic force microscope cryogenic probe according to claim 5, characterized in that: There are two fixed blocks (112), each of which has a circular groove II opened inside, and the inner walls of the two circular grooves II are rotatably connected to a bidirectional threaded rod (113), and the front of the bidirectional threaded rod (113) is fixedly connected to a turning handle I (114).
7. The atomic force microscope cryogenic probe according to claim 6, characterized in that: The outer surface of the bidirectional threaded rod (113) is threadedly connected with a clamping block (115), and the number of the clamping blocks (115) is two. The interior of the fixing seat (5) is provided with a square groove one, and the number of the square groove one is two.
8. The atomic force microscope cryogenic probe according to claim 7, characterized in that: The inner walls of the two square grooves are respectively slidably connected to the outer surfaces of the two clamping blocks (115), and the two clamping blocks (115) are fixedly connected with rubber pads (116) on the sides close to each other.