Film sample clamping frame

Abstract

The invention relates to a film sample fixing device, and particularly discloses a film sample clamping frame, which comprises an inlay frame and a groove frame, the surface of the inlay frame is provided with a raised inlay vertical to the frame surface, and the groove frame is provided with a clamping accommodating part matched with the inlay; the clamping containing part comprises a clamping part, and the width of the clamping part is 50%-95% of the maximum width of the inlay body. A first force application piece is arranged on the edge of the inlay frame, a second force application piece is arranged on the edge of the groove frame, and a preset distance is formed between the first force application piece and the second force application piece; the inlay body and the clamping containing part are correspondingly arranged on the four sides of the inlay body frame and the four sides of the groove frame respectively. With the adoption of the device, the part of the edge of the film between the two clamping frames can be stably clamped, the preparation operation of a film sample is simplified, and the sample preparation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of fixing device of film sample, in particular to a kind of film sample frame. BACKGROUND

[0002] In film test experiment, oil film sample needs to be treated by extraction, annealing, cutting and other processes after being processed to obtain test sample, so it is necessary to spread and fix the test area in these previous processing steps, the traditional sample frame is a single piece frame, and the edge of the test film is fixed by the clamping fixture, which is time-consuming and laborious. The sample preparation method of the film frame matched with the clamping tool, the clamping points are dispersed, the film shrinks in the previous processing process of the test sample, the clamping effect is unstable, and the quality of the prepared sample is poor.

[0003] In the extraction step, the fixed film is placed horizontally in the container containing the extraction liquid, and the lowest liquid level of the extraction liquid should be greater than the horizontal placement height of the film sample, so as to ensure that the film sample is completely immersed in the extraction liquid. At this time, the thickness of the clamping tool itself determines the minimum amount of extraction liquid at one time. The maximum thickness of a single sample in the traditional single piece film frame matched with the clamping tool is more than 5mm, which is relatively expensive in the extraction process, and the extraction efficiency is not high. SUMMARY

[0004] The present application provides a kind of film sample frame to solve the defects of prior art, which can ensure that the part of the film edge placed between the two clamping frames is clamped stably, simplify the preparation operation of film sample and improve the sample preparation efficiency.

[0005] To solve the above technical problems, the film sample frame provided by the embodiments of the present application includes an embedded frame and a groove frame, the surface of the embedded frame is provided with an embedded body protruding perpendicular to the frame surface, and the groove frame is provided with a clamping accommodating part matched with the embedded body. The clamping accommodating part includes a clamping part, the width of the clamping part is 50%-95% of the maximum width of the embedded body, the edge of the embedded frame is provided with a first force applying member, the edge of the groove frame is provided with a second force applying member, and the first force applying member and the second force applying member have a preset distance. The embedded body and the clamping accommodating part are respectively arranged on the four edges of the embedded frame and the groove frame.

[0006] As an improvement of the above-mentioned scheme, the embedded body is an embedded strip with arc-shaped cross section extending along the edge length direction of the embedded frame.

[0007] As an improvement of the above-mentioned scheme, the clamping accommodating part is a groove extending along the edge length direction of the groove frame, and the groove is provided with the clamping part at the opening thereof.

[0008] As an improvement of the above-mentioned scheme, a support section is arranged between the insert and the insert frame, and when the insert is completely inserted into the clamping accommodating part on the groove frame, the support section keeps the clamping surface of the insert frame and the clamping surface of the groove frame at a predetermined distance.

[0009] As an improvement of the above-mentioned scheme, the groove bottom is composed of an arc-shaped cover protruding outward from the bottom surface of the groove frame, and when the insert is completely inserted into the groove frame, the insert abuts against the arc-shaped cover.

[0010] As an improvement of the above-mentioned scheme, the insert frame is provided with a connecting buckle protruding from the clamping surface of the insert frame, and the end of the insert is provided with a clamping claw; the clamping claw can be clamped and fixed by the connecting buckle.

[0011] As an improvement of the above-mentioned scheme, the top of the connecting buckle is provided with an abutting plane, the clamping accommodating part penetrates the bottom surface of the groove frame, and when the insert is completely inserted into the clamping accommodating part on the groove frame, the abutting plane abuts against the clamping surface of the groove frame.

[0012] As an improvement of the above-mentioned scheme, the first force applying member is a first tab extending outward from the insert frame along the edge thereof, and the second force applying member is a second tab extending outward from the groove frame along the edge thereof; the first tab and the second tab do not completely overlap.

[0013] As an improvement of the above-mentioned scheme, the first force applying member is a curved surface or a plane bent outward from the edge of the insert frame in a direction away from the clamping surface; and the second force applying member is a curved surface or a plane bent outward from the edge of the groove frame in a direction away from the clamping surface.

[0014] As an improvement of the above-mentioned scheme, the thickness of the clamping surface of the insert frame and the groove frame to the bottom surface thereof is 0.5-1.5 mm.

[0015] The embodiment of the present application has the following beneficial effects:

[0016] When preparing the sample, since the opening width of the clamping accommodating part is smaller than the maximum width of the insert, the insert is not easy to be separated from the clamping accommodating part unless external force is applied, so that the part of the film edge between the two clamping frames is stably clamped. The special clamping structure of the clamping frame simplifies the preparation operation of the film sample and improves the sample preparation efficiency.

[0017] The support section is arranged between the recessed frame and the inlay, and is arranged between the two clamping frames, so that the two clamping frame borders are completely attached except for the clamping position, and other border areas are separated from each other, which facilitates the infiltration of the extraction liquid into the film under the border coverage area, and the extraction area is larger, and the extraction effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is an embodiment structure diagram of a film sample clamping frame of the present application;

[0019] Figure 2 is a cross-sectional view of an embodiment of a film sample clamping frame of the present application;

[0020] Figure 3 is an embodiment structure diagram of a recessed frame of the present application;

[0021] Figure 4 is an embodiment structure diagram of an inlay frame of the present application;

[0022] Figure 5 is another embodiment structure diagram of a film sample clamping frame of the present application;

[0023] Figure 6 is a cross-sectional view of another embodiment of a film sample clamping frame of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer directions appearing or about to appear in the present application are based on the drawings of the present application, and are not specific limitations on the present application.

[0025] As shown in Figures 1-4 , the first embodiment of the present application provides a film sample clamping frame, which comprises an inlay frame 1 and a recessed frame 2, the surface of the inlay frame 1 is provided with an inlay 11 protruding vertically to the frame surface, and the recessed frame 2 is provided with a clamping accommodating part 21 matched with the inlay 11; the clamping accommodating part 21 comprises a clamping part 22, the width of the clamping part 22 is 50%-95% of the maximum width of the inlay 11; the edge of the inlay frame 1 is provided with a first force applying part 12, the edge of the recessed frame 2 is provided with a second force applying part 22, and the first force applying part 12 and the second force applying part 22 have a preset distance; the inlay 11 and the clamping accommodating part 21 are respectively arranged on the four edges of the inlay frame 1 and the recessed frame 2. In the present embodiment, the width of the clamping part 22 is 50% of the maximum width of the inlay 11.

[0026] When the sample is prepared, the inlay 11 is embedded in the clamping accommodating portion 21, and the opening width of the clamping accommodating portion 21 is smaller than the maximum width of the inlay 11, so that the inlay 11 is not easy to be separated from the clamping accommodating portion 21 unless an external force is applied. Therefore, the part of the film edge between the two clamping frames is clamped stably.

[0027] Preferably, the inlay 11 is an inlay strip with an arc-shaped cross section extending along the edge length direction of the inlay frame 1. The clamping accommodating portion 21 is a groove extending along the edge length direction of the groove frame 2, and the clamping portion 22 is arranged at the opening of the groove. By simultaneously arranging the inlay 11 and the clamping accommodating portion 21 on the four edges of the clamping frame, the film can be stably stretched and fixed during the clamping of the film sample. The continuous and stable clamping position ensures that the sample edge material is uniformly stressed, thereby ensuring the uniformity of the film surface of the film sample and improving the quality of the film sample, and the film sample is more beautiful.

[0028] After the sample is fixed, in order to make the film sample contact with the extraction liquid over a larger area, the support section 13 is arranged between the inlay 11 and the inlay frame 1. When the inlay 11 is completely embedded in the clamping accommodating portion 21 of the groove frame 2, the support section 13 keeps the clamping surface of the inlay frame 1 and the clamping surface of the groove frame 2 at a predetermined distance. The support section 13 is arranged between the groove frame 2 and the inlay 11, and is located between the two clamping frames. Therefore, except for the clamping position, the other edge regions of the two clamping frames are separated from each other, which is beneficial to the penetration of the extraction liquid into the film under the clamping frame coverage area, and the extraction area is larger and the extraction effect is better. The slot and groove design of the clamping portion 22 of the groove frame 2 can minimize the film area that cannot be in full contact with the extraction liquid for effective extraction, thereby maximizing the extraction efficiency.

[0029] Preferably, the groove bottom is composed of an arc-shaped cover 23 protruding outward from the bottom surface of the groove frame 2. When the inlay 11 is completely embedded in the groove frame 2, the inlay 11 abuts against the arc-shaped cover 23. It should be noted that the arc-shaped cover 23 with the above structure can reduce the overall thickness of the groove frame 2, thereby reducing the amount of extraction liquid. In addition, by cooperating the arc-shaped cover 23 with the support section 13, the distance between the clamping surfaces of the groove frame 2 and the inlay frame 1 can be reliably controlled, and the extraction area of the film can be increased.

[0030] In combination Figure 5As shown, in an embodiment, the first force applying member 12 is a first tab 121 extending outward from the edge of the inlay frame 1, and the second force applying member 22 is a second tab 221 extending outward from the edge of the groove frame 2; the first tab 121 and the second tab 221 do not completely overlap. When it is necessary to open the clamping frame, the inlay 11 on the inlay frame 1 can be separated from the clamping part 22 of the groove frame 2 by the cooperation of the first tab 121 and the second tab 221.

[0031] In combination Figure 2 As another specific embodiment of the first force applying member 12 and the second force applying member 22, as shown, the first force applying member 12 is a first tab 121 extending outward from the edge of the inlay frame 1, and the second force applying member 22 is a second tab 221 extending outward from the edge of the groove frame 2; the first tab 121 and the second tab 221 do not completely overlap. When it is necessary to open the clamping frame, the inlay 11 on the inlay frame 1 can be separated from the clamping part 22 of the groove frame 2 by the cooperation of the first tab 121 and the second tab 221.

[0032] Preferably, the thickness of the clamping surface of the inlay frame 1 and the groove frame 2 to the bottom surface is 0.5-1.5 mm.

[0033] Through the cooperation of the above structure, the thickness of the inlay frame 1 and the groove frame 2 can be greatly reduced to within 0.5-1.5 mm, the use of extraction liquid is reduced under the premise of maintaining reliable clamping, and the cost is reduced. Specifically, thinner pre-sequence samples are more conducive to saving extraction liquid, and for the extraction method in which the film surface is perpendicular to the extraction container bottom disc, thinner clamping frames are also conducive to extracting more samples at one time.

[0034] The use and principle of the thin film sample clamping frame will be described below:

[0035] When fixing the thin film sample, first place the rectangular inlay frame 1 with four edge frame inlays 11 on a horizontal surface, place the sample area to be tested in the area surrounded by the inlays 11, and completely spread the film edge on the clamping surface of the inlay frame 1 to ensure that the inlays 11 are completely covered by the film, and then press the groove frame 2 against the inlays 11, at this time, the elastic deformation of the edge of the groove frame 2 or the inlays 11 can make the columnar inlays 11 with a larger cross-sectional width be clamped into the clamping and containing part 21 of the groove frame 2 with an opening width smaller than the maximum cross-sectional width. The film material between the two clamping frames is clamped and fixed by the "groove / slit-inlay" structure on the clamping frame, so that the film sample to be tested is fixed flat between the groove frame 2 and the inlay frame 1. The sample preparation process only needs to place the film between the groove frame 2 and the inlay frame 1, and then press the two clamping frames to cooperate, which is simple and convenient to operate.

[0036] When the sample needs to be taken out from the frame, because the total thickness of the two clamping frames is very thin (less than 5mm), in order to facilitate the separation of the upper and lower clamping frames to take out the thin film sample, a first force applying member 12 and a second force applying member 22 are designed on the edge of the clamping frame. When the clamping frame is separated, only the first force applying member 12 and the second force applying member 22 of the upper and lower clamping frames need to be held and forced in opposite directions, so that the clamping frame can be easily opened, and the thin film sample can be taken out.

[0037] In combination Figure 6 As shown in the second embodiment of the present application, a thin film sample clamping frame is provided, which is different from the first embodiment in that the insert frame 1 is provided with a connecting buckle 14 extending from the clamping surface of the insert frame 1, and the end of the insert 11 is provided with a clamping claw 111; the clamping claw 111 can be clamped and fixed by the connecting buckle 14. The connecting buckles 14 are arranged in pairs and opposite to each other in the same group; the insert 11 is made of elastic metal sheet, and the arc-shaped top 112 thereof serves as an assembly area of the embedded clamping receiving part 21, and the clamping claw 111 can clamp the two connecting buckles 14 in the same group to fix the insert 11 between the two connecting buckles 14 in the same group. In this embodiment, the width of the clamping part 22 is 95% of the maximum width of the insert 11, and the use of the insert with higher elasticity can keep reliable connection between the clamping part 22 and the insert 11 when the maximum width of the clamping part 22 is close to that of the insert 11. Since the maximum width of the clamping part 22 is close to that of the insert 11, the deformation of the insert 11 during disassembly is small, and the force required for disassembly is small, so the disassembly is convenient.

[0038] The top of the connecting buckle 14 is provided with an abutting plane 141, the clamping receiving part 21 penetrates through the bottom surface of the recess frame 2, and when the insert 11 is completely embedded in the clamping receiving part 21 on the recess frame 2, the abutting plane 141 abuts against the clamping surface of the recess frame 2. The above structure eliminates the arc-shaped cover 23 of the recess frame 2 in the first embodiment, further simplifies the structure of the recess frame 2 and reduces the thickness of the recess frame 2. The distance between the recess frame 2 and the insert frame 1 is controlled by the abutting plane 141 of the connecting buckle 14, and through the arrangement of the abutting plane 141, the recess frame 2 and the insert frame 1 can be ensured to be assembled in parallel, the spacing between the clamping surfaces of the recess frame 2 and the insert frame 1 is equal everywhere, which ensures the uniformity of the efficiency of thin film extraction and improves the accuracy of subsequent experiments.

[0039] By using this embodiment, the preparation steps of the thin film test sample can be simplified, the sample preparation efficiency can be improved, and the quality of the prepared sample can be improved through the improvement of the preparation device, thereby improving the accuracy of the test results.

[0040] The above describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.

Claims

1. A film sample holder frame, characterized by, The inlaid frame and the groove frame are provided with an inlaid body and a groove respectively, The inlaid body is provided on the surface of the inlaid frame and protrudes perpendicularly to the surface of the frame, and the groove is provided on the groove frame and matches the inlaid body. The clamping part has a width of 50%-95% of the maximum width of the inlaid body. The edge of the inlaid frame is provided with a first force applying part, and the edge of the groove frame is provided with a second force applying part. The inlaid body and the clamping part are respectively provided on the four edges of the inlaid frame and the groove frame.

2. The film sample holder frame of claim 1, wherein, The inlaid body is an inlaid strip with an arc-shaped cross section extending along the edge length direction of the inlaid frame.

3. The film sample holder frame of claim 2, wherein, The clamping part is a groove extending along the edge length direction of the groove frame, and the groove is provided with the clamping part at the opening thereof.

4. The film sample holder frame of claim 1, wherein, The inlaid body and the inlaid frame are provided with a support section, and when the inlaid body is completely inserted into the clamping part on the groove frame, the support section keeps the clamping surface of the inlaid frame and the clamping surface of the groove frame at a predetermined distance.

5. The film sample holder frame of claim 1, wherein, The groove bottom is composed of an arc-shaped cover protruding outward from the bottom surface of the groove frame, and when the inlaid body is completely inserted into the groove frame, the inlaid body abuts against the arc-shaped cover.

6. The film sample holder frame of claim 1, wherein, The inlaid frame is provided with a connecting buckle protruding from the clamping surface of the inlaid frame, and the end of the inlaid body is provided with a clamping claw, and the clamping claw can be clamped and fixed by the connecting buckle.

7. The film sample holder frame of claim 6, wherein, The top of the connecting buckle is provided with an abutting plane, the clamping part penetrates through the bottom surface of the groove frame, and when the inlaid body is completely inserted into the clamping part on the groove frame, the abutting plane abuts against the clamping surface of the groove frame.

8. The film sample holder frame of any of claims 1-7, wherein, The first force applying part is a first tab extending outward from the edge of the inlaid frame, and the second force applying part is a second tab extending outward from the edge of the groove frame, and the first tab and the second tab do not completely overlap.

9. The film sample holder frame of any of claims 1-7, wherein, The first force applying part is a curved surface or a plane bent away from the clamping surface from the edge of the inlaid frame, and the second force applying part is a curved surface or a plane bent away from the clamping surface from the edge of the groove frame.

10. The film sample holder frame of claim 1, wherein, The thickness of the clamping surface to the bottom surface of the inlaid frame and the groove frame is 0.5-1.5 mm.

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