Sample clamping device for atomic force microscope

Abstract

The sample clamping device for the atomic force microscope comprises a positioning disc, an adjusting pressing piece, an adjusting clamping plate and a shifting piece assembly, a sample containing groove is formed in the positioning disc, a first light through hole and a second light through hole are formed in the upper end and the lower end of the sample containing groove respectively, and a guide groove is formed in the front end of the sample containing groove; first adjusting grooves are formed in the two sides, close to the first light through hole, of the positioning disc, and a second adjusting groove and a third adjusting groove are formed in the rear end of the positioning disc. The clamping device has the advantages that the sample containing groove used for installing the carrier slide is formed in the positioning disc, accurate positioning of samples is achieved through the adjusting pressing piece and the adjusting clamping plate, and the phenomenon that a traditional vacuum adsorption objective table clamping device cannot adapt to various sample sizes is avoided; the sample is rapidly replaced through the shifting piece assembly, hand contact is reduced when the sample is taken and placed, the sample is protected, the loading and unloading efficiency of the sample is improved, and the applicability is high.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of microscope, concretely relates to a sample clamping device for atomic force microscope. BACKGROUND

[0002] Atomic force microscope is the utility microcantilever feels and amplifies the action force between the fine probe on the cantilever and the sample atom of being measured, to achieve the purpose of detection, has atomic resolution, so atomic force microscope is widely applied in nanometer material, biomedical science and other frontier science and technology fields with its nanometer level superhigh detection precision;Microscope stage is the platform that places object and is perpendicular to the optical axis of microscope, it usually is equipped with mechanical movement device, to facilitate object along the axle movement and rotation around the axle.

[0003] The inventor found the following defects in the specific embodiment operation process:

[0004] But the existing sample fixing device has certain shortage when using: the current atomic force microscope is fixed by vacuum adsorption, but for some uneven bottom or small size sample, vacuum adsorption is not stable, and needs to move multiple times to prevent deviation when placing the sample, which is not conducive to observation, and it is difficult to guarantee the work efficiency.

[0005] It should be noted that the above content belongs to the technical cognition of the inventor, and due to the vast and complex technical content in the field, the above content of the present application does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0006] 1. Technical problem to be solved by the utility model:

[0007] The utility model provides a sample clamping device for atomic force microscope to solve the technical problems existing in the above background technology.

[0008] 2. Technical scheme:

[0009] In order to achieve the above purpose, the utility model provides a technical scheme: a sample clamping device for atomic force microscope, including positioning disc, adjusting tablet, adjusting clamping plate and dial tablet assembly, the positioning disc is equipped with sample containing groove, the upper and lower ends of the sample containing groove are respectively equipped with light hole one and light hole two, the front end of the sample containing groove is equipped with guide groove, the both sides of the positioning disc close to the light hole one are equipped with adjusting groove one, the rear end of the positioning disc is respectively equipped with adjusting groove two, adjusting groove three.

[0010] Further, the sample containing groove, the light hole one, the light hole two, the guide groove, the adjusting groove one, the adjusting groove two and the adjusting groove three are all communicated with each other.

[0011] Further, the adjusting groove one side is provided with a positioning groove, the depth of the positioning groove is less than the depth of the adjusting groove one, the adjusting pressing plate is embedded in the adjusting groove one.

[0012] Further, the adjusting pressing plate includes two mirror image arranged pressing plates, the pressing plate upper end is provided with a limiting pressing strip, the limiting pressing strip two ends are provided with telescopic positioning pins, the telescopic positioning pin is provided with a spring, the telescopic positioning pin lower end is fixedly connected with the positioning groove.

[0013] Further, the pressing plate and the limiting pressing strip are connected through adjusting bolts, the pressing plate lower end is also provided with a wear-resistant sheet.

[0014] Further, the light hole one front end is communicated with the guide groove, the light hole diameter is greater than the light hole two diameter.

[0015] Further, the adjusting card plate and the dial plate assembly are embedded in the adjusting groove two and the adjusting groove three respectively, the adjusting card plate is also provided with a scale.

[0016] Further, the dial plate assembly includes a push plate embedded in the adjusting groove three, the push plate lower end is connected with a handle, the handle is located at the positioning disc lower end.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] The utility model discloses the design is reasonable, and the structure is simple, and sample loading and unloading are convenient, and the applicability is high, and effectively improve test efficiency;

[0020] The back end and the two side upper end faces of the sample are fixed by the adjusting pressing plate and the adjusting card plate respectively, accurate positioning of the sample is realized, the traditional vacuum adsorption object table clamping device is replaced, and the phenomenon that a plurality of sample sizes cannot be adapted is replaced.

[0021] The dial plate assembly realizes quick replacement of the sample, reduces hand contact when taking and placing the sample, protects the sample, improves loading and unloading speed, and improves test efficiency.

[0022] It should be noted that the structures not introduced in the utility model are the same as or can be realized by the prior art, and details are not repeated here. DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2Another angle integral structure schematic view of the utility model;

[0025] Figure 3 Positioning disc structure schematic view of the utility model;

[0026] Figure 4 Another angle positioning disc structure schematic view of the utility model;

[0027] Figure 5 Adjusting and tabletting structure schematic view of the utility model.

[0028] Reference signs:

[0029] 1, positioning disc;2, sample containing groove;3, light hole one;4, light hole two;5, guide groove;6, adjusting and tabletting;601, tabletting;602, limit pressure strip;603, telescopic positioning pin;604, spring;605, adjusting bolt;606, wear plate;7, adjusting clamping plate;8, push piece assembly;801, push plate;802, handle;9, adjusting groove one;901, positioning groove;10, adjusting groove two;11, adjusting groove three;12, scale. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, wherein several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0032] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0033] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix", "have", "be equipped with" and so on should be understood in broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances. Embodiment

[0034] Referring to the drawings Figures 1-5 A sample clamping device for atomic force microscope, including positioning disc 1, adjusting tablet 6, adjusting cardboard 7 and dial piece assembly 8, the positioning disc 1 is equipped with sample containing groove 2, and the upper and lower ends of sample containing groove 2 are equipped with light hole one 3 and light hole two 4 respectively, and the front end of sample containing groove 2 is equipped with guide groove 5, the both sides of positioning disc 1 close to light hole one 3 are equipped with adjusting groove one 9, and the rear end of positioning disc 1 is equipped with adjusting groove two 10 and adjusting groove three 11 respectively.

[0035] Referring to the drawings Figures 1-5 Sample containing groove 2 and light hole one 3, light hole two 4, guide groove 5, adjusting groove one 9, adjusting groove two 10 and adjusting groove three 11 are all communicated with each other, and the opening end of sample containing groove 2 is located at the front end of positioning disc 1, and sample is pushed into positioning disc 1 from the front end of sample containing groove 2 to be installed.

[0036] Referring to the drawings Figures 1-5 Adjusting groove one 9 is equipped with positioning groove 901 on both sides, the depth of positioning groove 901 is less than the depth of adjusting groove one 9, adjusting tablet 6 is embedded in adjusting groove one 9, adjusting tablet 6 adjusts height in adjusting groove one 9, so that the upper end surface of sample is pressed tightly when pressing down, and the sample is fixed in sample containing groove 2, adjusting tablet 6 includes two mirror image setting pressure tablets 601, the upper end of pressure tablet 601 is equipped with limiting pressure strip 602, the both ends of limiting pressure strip 602 are equipped with telescopic positioning pin 603, spring 604 is sleeved on telescopic positioning pin 603, limiting pressure strip 602 is guided to move up and down when descending through both ends of telescopic positioning pin 603, the lower end of telescopic positioning pin 603 is fixedly connected with positioning groove 901, telescopic positioning pin 603 realizes support force in height direction through spring 604, pressure tablet 601 and limiting pressure strip 602 are connected through adjusting bolt 605, the lower end of pressure tablet 601 is also equipped with wear-resistant sheet 606, wear-resistant sheet 606 is directly contacted with the upper end surface of sample after adjusting bolt 605 is screwed down, friction is provided, and the sample is pressed tightly.

[0037] Referring to the drawings Figures 1-5The front end of the light hole one 3 is communicated with the guide groove 5, the diameter of the light hole one 3 is greater than the diameter of the light hole two 4, the position of the sample loaded into the sample accommodating groove 2 is observed through the light hole one 3, and adjustment is convenient.

[0038] Referring to the drawings Figures 1-5 The adjusting card plate 7 and the push piece assembly 8 are respectively embedded in the adjusting groove two 10 and the adjusting groove three 11, the adjusting card plate 7 is further provided with a scale 12, the adjusting card plate 7 slides forward and backward along the adjusting groove two 10, after the sample is loaded into the sample accommodating groove 2, the sample is pushed to the central position of the light hole one 3 through the adjusting card plate 7, and the size is observed and controlled by using the scale 12 on the adjusting card plate 7.

[0039] Referring to the drawings Figures 1-5 The push piece assembly 8 comprises a push plate 801 embedded in the adjusting groove three 11, and a handle 802 connected to the lower end of the push plate 801, the handle 802 is located at the lower end of the positioning disc 1, the sample can be moved out of the sample accommodating groove 2 through the push block 801 by pulling the handle 802 to pull out to the front end of the positioning disc 1, and the sample is convenient to replace.

[0040] In the embodiment, after the sample is pushed into the sample accommodating groove 2 from the opening at the front end of the positioning disc 1, the two ends and the rear end of the sample are pressed tightly through the adjusting pressing plate 6 and the adjusting card plate 7, so that the sample is fixed in the sample accommodating groove 2; the upper end surface of the sample is pressed tightly through the pressure-controllable pressing plate 601, the wear-resistant sheet 606 is in contact with the sample to prevent the sample surface from being abraded or scratched, the adjusting card plate 7 has a precise scale, when the size of the sample is smaller than the standard size of the sample accommodating groove 2, the adjusting card plate 7 can be pushed to the front end, so that the sample is adjusted to be positioned in the central position of the light hole one 3, the positioning is accurate, and the sample is convenient to observe; after the sample completes the test, the handle 802 is pushed to the front end, so that the sample is moved out of the sample accommodating groove 2 through the push block 801, and the sample is replaced.

[0041] As described above, the sample accommodating groove 2 for installing the carrier sheet is arranged on the positioning disc 1, and the precise positioning of the sample is realized through the adjusting pressing plate 6 and the adjusting card plate 7, so that the phenomenon that the traditional vacuum adsorption carrier table clamping device cannot adapt to various sample sizes is replaced; the sample is quickly replaced through the push piece assembly 8, the hand contact during sample taking and placing is reduced, the sample is protected, and the sample loading and unloading efficiency is improved.

[0042] The above-described embodiment only expresses certain implementation manners of the utility model, the description is relatively specific and detailed, but it cannot be understood as the limitation on the patent range of the utility model; it should be pointed out that, for ordinary skilled persons in the art, on the premise of not departing from the utility model concept, a plurality of modifications and improvements can be made, and these all belong to the protection range of the utility model; therefore, the protection range of the utility model patent should be the appended claims.

Claims

1. A sample holding device for an atomic force microscope, characterized by: Including positioning disc (1), adjust the tablet (6), adjust the card board (7) and dial piece assembly (8), the positioning disc (1) is set up with sample containing groove (2) on, the sample containing groove (2) upper and lower ends are set up with light hole one (3) and light hole two (4) respectively, the sample containing groove (2) front end is set up with guide groove (5), the positioning disc (1) is set up with adjust groove one (9) on both sides close to the light hole one (3), the positioning disc (1) rear end is set up with adjust groove two (10), adjust groove three (11) respectively.

2. The sample holder for an atomic force microscope according to claim 1, wherein: The sample containing groove (2) and the light hole one (3), the light hole two (4), the guide groove (5), the adjust groove one (9), the adjust groove two (10) and the adjust groove three (11) are all interconnected.

3. The sample holder apparatus for an atomic force microscope according to claim 1, wherein: The adjust groove one (9) is set up with positioning groove (901) on both sides, the depth of the positioning groove (901) is less than the depth of the adjust groove one (9), the adjust tablet (6) is embedded in the adjust groove one (9).

4. The sample holder for an atomic force microscope according to claim 3, wherein: The adjust tablet (6) includes two mirror image settings of the tablet (601), the tablet (601) upper end is provided with limit pressure strip (602), the limit pressure strip (602) both ends are provided with telescopic positioning pin (603), the telescopic positioning pin (603) is provided with spring (604) on the sleeve, the telescopic positioning pin (603) lower end is fixedly connected with the positioning groove (901).

5. The sample holder for an atomic force microscope according to claim 4, wherein: The tablet (601) and the limit pressure strip (602) are connected through adjust bolt (605), the tablet (601) lower end is also provided with wear plate (606).

6. The sample holder of claim 1, wherein: The light hole one (3) front end is communicated with the guide groove (5), the diameter of the light hole one (3) is greater than the diameter of the light hole two (4).

7. The sample holder of claim 1, wherein: The adjust card board (7) and the dial piece assembly (8) are embedded in the adjust groove two (10), the adjust groove three (11) respectively, the adjust card board (7) is also provided with scale (12) on.

8. The sample holder of claim 1, wherein: The dial piece assembly (8) includes push plate (801) embedded in the adjust groove three (11), the push plate (801) lower end is connected with handle (802), the handle (802) is located in the positioning disc (1) lower end.

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