Transmission electron microscope sample holder placing rack

Abstract

The utility model discloses a transmission electron microscope sample holder, which belongs to the technical field of electron microscopes and structurally comprises a base, two support plates and a top plate, a top cover is in sliding fit with the top of the top plate, two groups of illuminating lamps are fixed on the inner side wall of the top cover, an observation cylinder is fixed on the top cover in a penetrating manner, and a magnifying glass is fixed in the observation cylinder. A bearing plate used for supporting a sample rod is movably connected to the tops of the inner side faces of the two supporting plates, a containing plate is in sliding fit with one side of the base, a recycling groove and an antifouling groove are formed in the upper surface of the containing plate, and a plurality of pieces of containing paper are stacked in the recycling groove and the antifouling groove. The transmission electron microscope sample rod placing rack disclosed by the utility model can amplify the end part of the sample rod and a copper net and provide illumination, assists an operator in rapidly and stably placing the copper net bearing a sample in a copper net groove of the sample rod, and can collect the used copper net and the sample; the sample can be prevented from being polluted due to contact with the external environment when the copper net falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of electron microscopes, in particular to a sample rod placement rack for a transmission electron microscope. Background Art

[0002] Transmission electron microscopy (TEM) can see fine structures smaller than 0.2um that cannot be seen clearly under an optical microscope. These structures are called submicroscopic structures or ultramicroscopic structures. In order to see these structures clearly, it is necessary to choose a light source with a shorter wavelength to improve the resolution of the microscope. The transmission electron microscope uses an electron beam as its light source. The wavelength of the electron beam is much shorter than that of visible light and ultraviolet light, and the wavelength of the electron beam is inversely proportional to the square root of the voltage of the emitted electron beam. In other words, the higher the voltage, the shorter the wavelength. When using a transmission electron microscope, it is necessary to place the prepared sample slice on the copper mesh in advance, and then place the copper mesh with the sample attached in the copper mesh slot at the end of the sample rod. During the placement of the copper mesh, it is necessary to use a bracket to support the sample rod horizontally to facilitate the transfer of the sample to the sample rod;

[0003] The existing sample rod holder has a simple structure and a single function. It only has the function of supporting and does not have the function of lighting and collecting waste copper mesh. Moreover, when the copper mesh accidentally falls during the placement process, the sample adhered to the copper mesh is easily contaminated and cannot be reused, and the sample anti-fouling function is lacking. Utility Model Content

[0004] In order to address the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a transmission electron microscope sample rod placement rack, which can magnify the end of the sample rod and the copper mesh and provide light, assisting the operator to quickly and stably place the copper mesh carrying the sample into the copper mesh slot of the sample rod, and can collect the used copper mesh and sample, thereby preventing the sample from coming into contact with the external environment and being contaminated when the copper mesh falls.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a transmission electron microscope sample rod placement stand, comprising a base, two support plates fixed to the upper surface of the base, top plates fixed to the top ends of the two support plates, a top cover slidably engaged with the top of the top plate, two groups of lighting lamps fixed to the inner side wall of the top cover, an observation tube fixed through the top cover, and a magnifying glass fixed in the observation tube;

[0007] The top of the inner side surfaces of the two support plates are movably connected with a carrier plate for supporting the sample rod, and one side of the base is slidably fitted with a receiving plate. The upper surface of the receiving plate is provided with a recovery groove and an anti-fouling groove, and a number of receiving papers are stacked in the recovery groove and the anti-fouling groove.

[0008] Furthermore, a material taking port is provided at a position corresponding to the recovery tank and the anti-fouling tank on one side of the receiving plate, and a sliding door is slidably fitted at the material taking port.

[0009] Furthermore, a drawer is provided on one side of the base, sliding grooves are provided on both side walls of the material taking port, and sliders are fixed on both sides of the sliding door, and the sliders are slidably fitted in the sliding grooves.

[0010] Furthermore, two vertical plates are fixed on the upper surface of the top plate, a group of sliding rods are fixed between the two vertical plates, and one end of the top cover is slidably sleeved on the outer side of the sliding rods.

[0011] Furthermore, a permanent magnet is embedded and fixed on the side surface of one of the vertical plates, and an iron block is embedded and fixed at a position of the end surface of the top cover corresponding to the permanent magnet.

[0012] Furthermore, the two groups of lighting lamps are respectively located on both sides of the observation tube, and the inner side wall of the top cover is an arc-shaped curved surface structure.

[0013] Furthermore, the bottom of the supporting plate is provided with an arc-shaped bending section, and the two end surfaces of the top of the supporting plate expand toward the outer side surfaces, a horizontal plate is fixed between the two inner side surfaces of the top of the supporting plate, and a guide plate is fixed on the top of the inner side surfaces of the two support plates, and the horizontal plate slides between the two guide plates.

[0014] Furthermore, both end surfaces of the top of the horizontal plate are provided with a clearance groove, one end of the guide plate is slidably fitted in the clearance groove, and a spring is fixed between the one end of the guide plate and the bottom wall of the clearance groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The transmission electron microscope sample rod placement rack of the utility model can horizontally support the sample rod through the supporting plate, the top cover can magnify the end of the sample rod and the copper mesh, and the lighting lamp can provide light to assist the operator to quickly and stably place the copper mesh carrying the sample into the copper mesh slot of the sample rod. The used copper mesh and sample can be collected through the recovery slot, and the anti-fouling slot can prevent the sample from being contaminated by contact with the external environment when the copper mesh falls. The receiving paper can conveniently collect and buffer the copper mesh. The movable connection between the supporting plate and the two supporting plates can enable the operator to stimulate slight vibration of the supporting plate when knocking on the supporting plate or the top plate, and the vibration of the sample rod can be driven by the supporting plate. The orientation of the copper mesh can be slightly adjusted with the help of vibration, and the placement of the copper mesh and sample can be completed quickly.

[0017] 2. The transmission electron microscope sample rod placement rack of the present invention realizes the sliding of the top cover by the sliding cooperation between the slide rod and the top cover, and can achieve rapid fixation of the top cover by adsorbing and fixing the iron block with the permanent magnet.

[0018] 3. The transmission electron microscope sample rod placement rack of the present invention, through the sliding cooperation between the guide plate and the cross plate, with the help of the elastic deformation of the spring, can achieve the longitudinal and horizontal reciprocating movement of the cross plate under external force, thereby achieving slight vibration of the support plate. The configuration of the top of the support plate expanding toward the outward side increases the longitudinal width of the top of the support plate, making it easier for the operator to quickly place the sample rod into the interior of the support plate.

[0019] 4. The transmission electron microscope sample rod placement rack of the utility model has a drawer setting that is convenient for storing operating tools. The sliding cooperation between the slider and the slide groove enables the sliding door to slide vertically, which is convenient for pulling out the paper in the recovery tank and the anti-fouling tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the utility model when the sample rod is placed;

[0022] Figure 2 It is a structural diagram of the top plate of the utility model;

[0023] Figure 3 It is a structural diagram of the top cover of the utility model;

[0024] Figure 4 It is a structural diagram of the base of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the utility model after longitudinal section;

[0026] Figure 6 It is a structural schematic diagram of the utility model when the carrying plate and the guide plate are matched.

[0027] In the figure, 1. base, 2. support plate, 3. top plate, 4. load-bearing plate, 5. top cover, 6. observation tube, 7. magnifying glass, 8. receiving plate, 9. recovery tank, 10. anti-fouling tank, 11. lighting lamp, 12. drawer, 13. sliding door, 14. slider, 15. slide, 16. paper receiving, 17. vertical plate, 18. slide bar, 19. permanent magnet, 20. iron block, 21. horizontal plate, 22. guide plate, 23. clearance slot, 24. spring. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0034] Example: Reference Figure 1-6 The illustrated embodiment shows a sample holder holder for a transmission electron microscope, comprising a base 1, two support plates 2 being fixed to the upper surface of the base 1, a top plate 3 being fixed to the top of the two support plates 2, a top cover 5 being slidably engaged with the top of the top plate 3, two sets of lighting lamps 11 being fixed to the inner sidewall of the top cover 5, an observation tube 6 being fixed through the top cover 5, and a magnifying glass 7 being fixed within the observation tube 6;

[0035] The top of the inner side of the two support plates 2 is movably connected with a carrier plate 4 for supporting the sample rod, and a receiving plate 8 is slidably fitted on one side of the base 1. A recovery groove 9 and an anti-fouling groove 10 are provided on the upper surface of the receiving plate 8, and a number of receiving papers 16 are stacked in the recovery groove 9 and the anti-fouling groove 10.

[0036] When using the placement rack, place the sample rod inside the carrier plate 4, and support the sample rod horizontally through the carrier plate 4. When placing the copper mesh, slide the top cover 5 to the right, and pull the receiving plate 8 out from the inside of the base 1, so that the anti-fouling groove 10 is located directly below the magnifying glass 7. At this time, the magnifying glass 7, the end of the sample rod, and the anti-fouling groove 10 are located on the same vertical line. Turn on the lighting lamp 11 to provide sufficient light, and use the magnifying glass 7 to magnify the end of the sample rod and the copper mesh taken by tweezers, so as to assist the operator in quickly and accurately placing the copper mesh carrying the sample. Stably placed in the copper mesh slot of the sample holder. Due to the movable connection between the carrying plate 4 and the two support plates 2, during the placement of the copper mesh, the supporting plate 2 or the top plate 3 can be knocked to arouse slight vibration of the carrying plate 4, which drives the vibration of the sample holder. With the help of the vibration, the orientation of the copper mesh can be slightly adjusted, and the placement of the copper mesh and the sample can be completed quickly. The anti-fouling groove 10 can prevent the sample from contacting with the external environment and being contaminated when the copper mesh falls. After falling into the anti-fouling groove 10, the copper mesh and the sample can continue to be used, and the copper mesh is collected and buffered by the receiving paper 16;

[0037] When the copper mesh and sample need to be taken out, the receiving plate 8 can be pulled so that the recovery slot 9 is placed directly below the magnifying glass 7, and the sample rod is flipped over so that the copper mesh and sample on the sample rod automatically fall into the recovery slot 9. The copper mesh will be collected by the receiving paper 16 for easy recycling.

[0038] In order to facilitate the extraction of the receiving paper 16 from the recycling tank 9 and the anti-fouling tank 10, a material extraction port is provided on one side of the receiving plate 8 at positions corresponding to the recycling tank 9 and the anti-fouling tank 10. A sliding door 13 is slidably fitted at the material extraction port. A drawer 12 is provided on one side of the base 1. Slide grooves 15 are provided on both sides of the material extraction port. Slide blocks 14 are fixed on both sides of the sliding door 13. The slide blocks 14 slide in the slide grooves 15. The sliding fit between the slide blocks 14 and the slide grooves 15 enables the sliding door 13 to slide vertically. When the sliding door 13 slides vertically upward, the material extraction port is opened, and the receiving paper 16 and the copper mesh thereon can be pulled out through the material discharging port.

[0039] In order to enable the top cover 5 to slide on the top surface of the top plate 3 and to achieve rapid fixation of the top cover 5, in this embodiment, two vertical plates 17 are fixed to the upper surface of the top plate 3, a set of slide bars 18 are fixed between the two vertical plates 17, one end of the top cover 5 is slidably sleeved on the outside of the slide bars 18, a permanent magnet 19 is embedded and fixed on the side of one of the vertical plates 17, and an iron block 20 is embedded and fixed at the position of the end surface of the top cover 5 corresponding to the permanent magnet 19. Two sets of lighting lamps 11 are respectively located on both sides of the observation tube 6, so that the light from the lighting lamps 11 can be evenly dispersed. The inner side wall of the top cover 5 is an arc-shaped curved surface structure, and the arc-shaped curved surface design plays a shading role to prevent light dispersion. The sliding cooperation between the slide bars 18 and the top cover 5 enables the sliding of the top cover 5, and the adsorption and fixation of the iron block 20 by the permanent magnet 19 can achieve rapid fixation of the top cover 5.

[0040] To achieve a flexible connection between the carrier plate 4 and the support plate 2, allowing the carrier plate 4 to vibrate slightly in response to a tap on the support plate 2 or the top plate 3, in this embodiment, the carrier plate 4 has an arc-shaped bend at its bottom, and both ends of its top surface are expanded outward. A cross plate 21 is fixed between the two inner side surfaces of the top of the carrier plate 4, and a guide plate 22 is fixed to the top of the inner side surfaces of both support plates 2. The cross plate 21 slides between the two guide plates 22. A clearance groove 23 is defined at both ends of the top of the cross plate 21. One end of the guide plate 22 slides within the clearance groove 23, and a spring 24 is fixed between one end of the guide plate 22 and the inner bottom wall of the clearance groove 23. The sliding fit between the guide plate 22 and the cross plate 21, and the elastic deformation of the spring 24, enable the cross plate 21 to reciprocate longitudinally and horizontally when subjected to external force, causing the carrier plate 4 and the sample holder to vibrate synchronously. The outward expansion of the top of the carrier plate 4 increases the longitudinal width of the top of the carrier plate 4, making it easier for operators to quickly insert the sample holder into the carrier plate 4.

[0041] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0042] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A transmission electron microscope sample holder, characterized in that: The invention comprises a base (1), two support plates (2) are fixed on the upper surface of the base (1), a top plate (3) is fixed on the top of the two support plates (2), a top cover (5) is slidably fitted on the top of the top plate (3), two groups of lighting lamps (11) are fixed on the inner side wall of the top cover (5), and an observation tube (6) is fixed through the top cover (5), and a magnifying glass (7) is fixed in the observation tube (6); The top of the inner side of the two support plates (2) is movably connected to a carrier plate (4) for supporting the sample rod, and one side of the base (1) is slidably matched with a receiving plate (8), and the upper surface of the receiving plate (8) is provided with a recovery groove (9) and an anti-fouling groove (10), and a plurality of receiving papers (16) are stacked in the recovery groove (9) and the anti-fouling groove (10).

2. The transmission electron microscope sample holder according to claim 1, characterized in that: A material taking opening is provided at positions corresponding to the recovery trough (9) and the anti-fouling trough (10) on one side of the receiving plate (8), and a sliding door (13) is slidably fitted at the material taking opening.

3. The transmission electron microscope sample holder according to claim 2, characterized in that: A drawer (12) is provided on one side of the base (1), sliding grooves (15) are provided on both side walls of the material taking port, and sliders (14) are fixed on both sides of the sliding door (13), and the sliders (14) are slidably fitted in the sliding grooves (15).

4. The transmission electron microscope sample holder according to claim 1, characterized in that: Two vertical plates (17) are fixed on the upper surface of the top plate (3), a group of sliding rods (18) is fixed between the two vertical plates (17), and one end of the top cover (5) is slidably sleeved on the outside of the sliding rod (18).

5. The transmission electron microscope sample holder according to claim 4, characterized in that: A permanent magnet (19) is embedded and fixed on the side surface of one of the vertical plates (17), and an iron block (20) is embedded and fixed at a position on the end surface of the top cover (5) corresponding to the permanent magnet (19).

6. The transmission electron microscope sample holder stand according to claim 5, characterized in that: The two groups of lighting lamps (11) are respectively located on both sides of the observation tube (6), and the inner side wall of the top cover (5) is an arc-shaped curved surface structure.

7. The transmission electron microscope sample holder stand according to any one of claims 1 to 6, characterized in that: The bottom of the supporting plate (4) is provided with an arc-shaped bending section, and both ends of the top of the supporting plate (4) expand toward the outer side surface. A transverse plate (21) is fixed between the two inner side surfaces of the top of the supporting plate (4), and a guide plate (22) is fixed to the top of the inner side surfaces of the two support plates (2). The transverse plate (21) is slidably fitted between the two guide plates (22).

8. The transmission electron microscope sample holder stand according to claim 7, characterized in that: Both end surfaces of the top of the transverse plate (21) are provided with a clearance groove (23), one end of the guide plate (22) is slidably fitted in the clearance groove (23), and a spring (24) is fixed between one end of the guide plate (22) and the inner bottom wall of the clearance groove (23).

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