Sample storage device for electron microscope

Abstract

The utility model relates to the technical field of sample storage, and provides a sample storage device for an electron microscope, which comprises an outer shell, an inner shell and a storage box, the inner shell is positioned inside the outer shell, a spring is fixedly connected to the inner lower side wall of the inner shell, the storage box is movably connected inside the inner shell, and the bottom end of the storage box clings to the top end of the spring. A clamping groove is formed in the inner side wall of the inner shell, a rotating hole is formed in the inner upper side wall of the clamping groove, an elastic clamping plate matched with the clamping groove is arranged on the outer wall of the storage box, a rotating rod is rotationally connected into the rotating hole, a circular shifting piece matched with the elastic clamping plate is arranged at the bottom end of the rotating rod, a torsional spring is arranged between the rotating rod and the rotating hole, and a threaded groove is formed in the top end of the storage box. A threaded cover is in threaded connection with the interior of the threaded groove, and a top cover is rotationally connected to the top end of the shell, so that the purposes of conveniently storing the sample and improving the storage effect are achieved.

Description

Technical Field

[0001] This utility model relates to the field of sample storage technology, specifically to a sample storage device for an electron microscope. Background Technology

[0002] Scanning electron microscopy (SEM) is primarily used to observe the surface morphology of samples. Therefore, the preparation of SEM samples must meet the following requirements: ① Maintain intact tissue and cell morphology; ② Fully expose the area to be observed; ③ Good conductivity and high secondary electron yield; ④ Maintain a sufficiently dry state, and fix the sample during the scanning process.

[0003] Many samples cannot be observed and tested immediately after preparation, so they need to be stored to avoid sample failure. Existing technologies require a lot of materials and involve a complicated process when storing samples, and the storage effect is poor, with samples easily falling apart or being damaged. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a sample storage device for electron microscopes, which solves the problems mentioned in the background technology, such as the large amount of materials required, the complex process, and the poor storage effect, which makes the samples easy to scatter or break.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sample storage device for an electron microscope, comprising an outer shell and an inner shell, including a storage box. The inner shell is located inside the outer shell, and a spring is fixedly connected to the lower inner side wall of the inner shell. The storage box is movably connected inside the inner shell, with the bottom end of the storage box tightly abutting the top end of the spring. A slot is formed on the inner side wall of the inner shell, and a rotating hole is formed on the upper inner side wall of the slot. An elastic retaining plate that mates with the slot is provided on the outer wall of the storage box. A rotating rod is rotatably connected inside the rotating hole. A circular lever that mates with the elastic retaining plate is provided at the bottom end of the rotating rod. A torsion spring is provided between the rotating rod and the rotating hole. A threaded groove is formed at the top end of the storage box, and a threaded cap is threadedly connected inside the threaded groove. A top cover is rotatably connected to the top end of the outer shell.

[0008] By adopting the above technical solution, the sample and fixative are placed in the storage box, and the threaded cap is screwed into the threaded groove to seal the storage box. The storage box is then inserted into the inner shell, allowing the elastic locking plate to insert into the slot, thus positioning the storage box. At this point, the top cover is closed, allowing the outer and inner shells to cooperate and protect the storage box, reducing the probability of damage from impacts. When it is necessary to remove the storage box, rotating the rotating rod drives the circular lever to rotate, which pushes the elastic locking plate to move, causing one end of the elastic locking plate to disengage from the slot. At this time, the spring pushes the storage box to move, thus popping the storage box out, thereby facilitating the removal of the storage box and improving the storage effect of the sample.

[0009] Optionally, a first thermal insulation layer is provided between the outer shell and the inner shell, and a second thermal insulation layer that cooperates with the first thermal insulation layer is provided on the inner side wall of the top cover.

[0010] By adopting the above technical solution, the first insulation layer and the second insulation layer work together to slow down the heat conduction between the inside and outside of the outer shell, thereby slowing down the temperature change inside the storage box and thus increasing the preservation time of the sample.

[0011] Optionally, the bottom end of the threaded cap is provided with a sealing gasket, and the bottom end of the sealing gasket is in close contact with the inner lower side wall of the threaded groove.

[0012] By adopting the above technical solution, the sealing gasket is used to improve the sealing between the threaded cap and the storage box, thereby preventing leakage of the fixative liquid.

[0013] Optionally, the top of the threaded cover is provided with a control groove, and a control plate is fixedly connected inside the control groove.

[0014] By adopting the above technical solution, the control board is used to facilitate personnel to rotate the threaded cover, and the control slot is used to store the control board to avoid affecting the top cover.

[0015] Optionally, a label slot is provided at the top of the top cover.

[0016] By adopting the above technical solution, the label slot is used to stick labels, thereby making it easier for personnel to distinguish different samples after the samples are stored.

[0017] (III) Beneficial Effects

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] This sample collection device for electron microscopes involves placing the sample and fixative into a collection box, screwing the threaded cap into the threaded groove to seal the box, inserting the box into the inner shell, and positioning the box by inserting the elastic retainer into the slot. The top cover is then closed, ensuring the outer and inner shells are properly fitted to protect the box and reduce the probability of damage from impacts. To remove the box, rotating the lever rotates a circular lever, which moves the elastic retainer, disengaging one end of the retainer from the slot. A spring then pushes the box to pop it out, facilitating easy removal and improving sample collection efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first side view of the present invention;

[0021] Figure 2 This is a first cross-sectional view of the present invention.

[0022] Figure 3 This is a second cross-sectional view of the present invention.

[0023] Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure at point A;

[0024] Figure 5 This is a side view of the threaded cap of this utility model.

[0025] In the diagram: 1. Outer shell; 2. Inner shell; 3. Storage box; 4. Spring; 5. Elastic retaining plate; 6. Rotating rod; 7. Circular lever; 8. Threaded cap; 9. First insulation layer; 10. Second insulation layer; 11. Sealing gasket; 12. Control board; 13. Label slot; 14. Top cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-4An electron microscope sample storage device includes an outer shell 1 and an inner shell 2, and a storage box 3. The inner shell 2 is located inside the outer shell 1. A spring 4 is fixedly connected to the lower inner side wall of the inner shell 2. The storage box 3 is movably connected inside the inner shell 2, with its bottom end close to the top end of the spring 4. A slot is formed on the inner side wall of the inner shell 2, and a rotating hole is formed on the upper inner side wall of the slot. An elastic locking plate 5 that cooperates with the slot is provided on the outer wall of the storage box 3. A rotating rod 6 is rotatably connected inside the rotating hole. A circular lever 7 that cooperates with the elastic locking plate 5 is provided at the bottom end of the rotating rod 6. A torsion spring is provided between the rotating rod 6 and the rotating hole. A threaded groove is formed at the top end of the storage box 3, and a threaded cap 8 is threadedly connected inside the threaded groove. A top cover 14 is rotatably connected to the top end of the outer shell 1. The sample and fixative are placed in the storage box 3, and the threaded cap 8 is screwed into the threaded groove to seal the storage box 3. The storage box 3 is then inserted into the inner shell 2, so that the elastic retaining plate 5 is inserted into the retaining groove to position the storage box 3. At this time, the top cover is closed, so that the outer shell 1 and the inner shell 2 cooperate to protect the storage box 3 and reduce the probability of the storage box 3 being damaged by bumps. When it is necessary to remove the storage box 3, the rotating rod is rotated to drive the circular lever 7 to rotate. The circular lever 7 pushes the elastic retaining plate 5 to move, so that one end of the elastic retaining plate 5 is disengaged from the retaining groove. At this time, the spring 4 pushes the storage box 3 to move, so that the storage box 3 pops out, thereby facilitating the removal of the storage box 3 and improving the storage effect.

[0029] Reference Figure 2 and Figure 3 A first heat insulation layer 9 is provided between the outer shell 1 and the inner shell 2. A second heat insulation layer 10 is provided on the inner side wall of the top cover in cooperation with the first heat insulation layer 9. The first heat insulation layer 9 and the second heat insulation layer 10 work together to slow down the heat conduction between the inside and outside of the outer shell 1, thereby slowing down the temperature change inside the storage box 3 and thus improving the preservation time of the sample.

[0030] Reference Figure 3 and Figure 5 The bottom end of the threaded cap 8 is provided with a sealing gasket 11. The bottom end of the sealing gasket 11 is in close contact with the inner lower side wall of the threaded groove. The sealing gasket 11 is used to improve the sealing between the threaded cap 8 and the storage box 3, thereby preventing the liquid from leaking.

[0031] Reference Figure 3 The top of the threaded cover 8 is provided with a control groove, and a control plate 12 is fixedly connected inside the control groove. The control plate 12 is used to facilitate personnel to rotate the threaded cover 8. The control groove is used to store the control plate 12 to avoid affecting the top cover.

[0032] Reference Figure 1 The top of the cover has a label slot 13 for attaching labels, so that it is easy for people to distinguish different samples after the samples are stored.

[0033] In summary, the working principle and process of this sample collection device for electron microscopes are as follows: First, the sample and fixative are placed in the collection box 3. The threaded cap 8 is screwed into the threaded groove to seal the collection box 3. The collection box 3 is then inserted into the inner shell 2, allowing the elastic retaining plate 5 to insert into the retaining groove, thus positioning the collection box 3. At this point, the top cover is closed, allowing the outer shell 1 and inner shell 2 to cooperate and protect the collection box 3, reducing the probability of damage from impacts. When it is necessary to remove the collection box 3, rotating the rotating rod drives the circular lever 7 to rotate. The circular lever 7 pushes the elastic retaining plate 5 to move, causing one end of the elastic retaining plate 5 to disengage from the retaining groove. At this time, the spring 4 pushes the collection box 3 to move, thus retrieving the sample. The storage box 3 pops out to facilitate its removal and storage, thus improving the storage effect. The first insulation layer 9 and the second insulation layer 10 work together to slow down the heat conduction between the inside and outside of the outer shell 1, thereby slowing down the temperature change inside the storage box 3 and increasing the preservation time of the samples. The sealing gasket 11 is used to improve the sealing between the threaded cap 8 and the storage box 3 to prevent the fixative from leaking. The control plate 12 is used to facilitate the rotation control of the threaded cap 8. The control slot is used to store the control plate 12 to avoid affecting the top cover. The label slot 13 is used to attach labels, so that it is easy for personnel to distinguish different samples after the samples are stored.

[0034] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A sample storage device for an electron microscope, comprising an outer shell (1) and an inner shell (2), characterized in that: The device includes a storage box (3), an inner shell (2) located inside an outer shell (1), a spring (4) fixedly connected to the lower inner side wall of the inner shell (2), a storage box (3) movably connected inside the inner shell (2), the bottom end of the storage box (3) closely attached to the top end of the spring (4), a slot is provided on the inner side wall of the inner shell (2), a rotating hole is provided on the upper inner side wall of the slot, an elastic plate (5) that cooperates with the slot is provided on the outer wall of the storage box (3), a rotating rod (6) is rotatably connected inside the rotating hole, a circular prying part (7) that cooperates with the elastic plate (5) is provided at the bottom end of the rotating rod (6), a torsion spring is provided between the rotating rod (6) and the rotating hole, a threaded groove is provided at the top end of the storage box (3), a threaded cover (8) is threadedly connected inside the threaded groove, and a top cover (14) is rotatably connected to the top end of the outer shell (1).

2. The sample storage device for an electron microscope according to claim 1, characterized in that: A first thermal insulation layer (9) is provided between the outer shell (1) and the inner shell (2), and a second thermal insulation layer (10) that cooperates with the first thermal insulation layer (9) is provided on the inner side wall of the top cover.

3. The sample storage device for an electron microscope according to claim 1, characterized in that: The bottom end of the threaded cap (8) is provided with a sealing gasket (11), and the bottom end of the sealing gasket (11) is in close contact with the inner lower side wall of the threaded groove.

4. The sample storage device for an electron microscope according to claim 1, characterized in that: The top of the threaded cap (8) is provided with a control groove, and a control plate (12) is fixedly connected inside the control groove.

5. The sample storage device for an electron microscope according to claim 1, characterized in that: The top of the top cover has a label slot (13).

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