A detection device for graphene thermal conductive film

Abstract

The present invention relates to the field of film detection technology, and in particular to a detection device for a graphene thermal conductive film. It comprises a bottom plate, and a U-shaped frame with an opening facing downward is installed on the upper end of the bottom plate; it also comprises a clamping unit, and the clamping unit is provided with two and symmetrically connected to the upper and lower ends of the horizontal section of the U-shaped frame, and the clamping unit comprises a height adjustment component connected to the horizontal section of the U-shaped frame. The limit unit used in the present invention can be adjusted to change the contact area of ​​the graphene thermal conductive film, and the tensile strength test of the graphene thermal conductive film under different contact areas is realized on a detection device, which effectively improves the applicability of the detection device, and there is no need to remove the graphene thermal conductive film from the detection device during the adjustment process, thereby reducing the steps of adjusting the contact area of ​​the graphene thermal conductive film and improving the efficiency of the detection.

Description

Technical Field

[0001] The present invention relates to the technical field of thin film detection, and in particular to a detection device for a graphene thermal conductive thin film. Background Art

[0002] Graphene thermal conductive film is a new type of heat dissipation material based on graphene materials. It is usually prepared by stacking and directional arrangement of multiple layers of graphene to achieve high thermal conductivity. It has the advantages of high thermal conductivity, strong corrosion resistance, good flexibility and good environmental protection performance. It is widely used in smart phones, tablets, LED lighting, electric vehicles and aerospace fields.

[0003] The tensile strength test of graphene thermal conductive film can help manufacturers understand the performance of graphene thermal conductive film materials under different conditions and ensure the reliability and durability of the products. In addition, the graphene film needs to be transferred between different rollers during the production process. Therefore, it is very important to conduct tensile strength test of graphene thermal conductive film during production.

[0004] When the existing technology tests the tensile strength of graphene thermal conductive films, the cut graphene thermal conductive film sample is usually correctly fixed between the two chucks of the tensile testing machine, and then the relevant parameters are set, and then the machine is started to perform the tensile test, and finally the data changes in the whole process are recorded. However, this method can only detect the tensile strength of the graphene thermal conductive film under one stress area. When performing tensile tests under other stress areas, the graphene thermal conductive film needs to be removed from the tensile testing machine, and then the area of ​​the barrier is changed, and then the graphene thermal conductive film is reinstalled, which reduces the efficiency of the test. Summary of the invention

[0005] Based on this, it is necessary to provide a detection device for a graphene thermal conductive film, aiming to solve the problems that arise when the tensile strength of the graphene thermal conductive film is tested in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a detection device for a graphene thermal conductive film, comprising: a bottom plate, a U-shaped frame with an opening facing downward is installed on the upper end of the bottom plate.

[0007] It also includes a clamping unit, which is provided with two and is symmetrically connected to the upper and lower ends of the horizontal section of the U-shaped frame. The clamping unit includes a height-adjusting component connected to the horizontal section of the U-shaped frame, and the end of the height-adjusting component away from the horizontal section of the U-shaped frame is connected to a U-shaped plate with an opening away from the horizontal section of the U-shaped frame, a clamping component is connected inside the U-shaped plate, and a traction component is connected to the clamping component.

[0008] The invention also includes a limiting unit, which is connected to the upper end of the base plate and is located on the right side of the U-shaped frame. The limiting unit includes an L-shaped frame installed on the upper end of the base plate. A C-shaped plate with an opening facing left is installed at the front end of the vertical section of the L-shaped frame. A pushing component connected to the front end of the vertical section of the L-shaped frame is arranged on the inner side of the C-shaped plate. A plurality of circumferentially evenly distributed extension components are connected to the C-shaped plate. An adjusting component is connected to the left end of the vertical section of the L-shaped frame.

[0009] According to an embodiment of the present invention, the height adjustment component includes a rectangular frame installed on the horizontal section of the U-shaped frame, a rectangular rod is slidably connected inside the rectangular frame, one end of the rectangular rod away from the rectangular frame is fixedly connected to the middle section of the U-shaped plate, a plurality of evenly distributed positioning through holes are opened on the rectangular rod, a positioning plate is inserted through the side of the rectangular frame away from the horizontal section of the U-shaped frame, and the positioning plate is plugged into and matched with any one of the positioning through holes.

[0010] According to an embodiment of the present invention, the clamping component includes a sliding frame slidably connected between the two vertical sections of the U-shaped plate, the sliding frame is of a rectangular structure, and a plurality of evenly distributed semicircular grooves are provided on the inner end surface of the frame wall of the sliding frame close to the rectangular rod, and an adjusting screw is threadedly connected to the frame wall of the sliding frame away from the rectangular rod, and a clamping plate is rotatably connected to one end of the adjusting screw close to the rectangular rod, and a guide column that penetrates and cooperates with the frame wall of the sliding frame is symmetrically installed on one end of the clamping plate close to the adjusting screw, and a plurality of evenly distributed semi-cylindrical protrusions are integrally formed on the end of the clamping plate away from the adjusting screw.

[0011] According to an embodiment of the present invention, the traction component includes an L-shaped plate installed at the left end of the horizontal section of the U-shaped plate, the vertical section of the L-shaped plate is slidably penetrated by a traction rod, the traction rod is in a U-shaped structure with its opening facing the sliding frame, the open end of the traction rod is fixedly connected to the sliding frame, an inclined opening is provided in the middle of the inner end of the longitudinal section of the traction rod, the left end of the L-shaped plate is connected to a positioning assembly, and limit rods are symmetrically installed on the right end of the longitudinal section of the traction rod, and the inclined opening is located between the front and rear limit rods.

[0012] According to an embodiment of the present invention, the positioning assembly includes a rectangular plate installed at the left end of the L-shaped plate near the horizontal section of the U-shaped frame, the rectangular plate slides through the vertical section connected to the T-shaped plate, a connecting spring is installed between the horizontal section of the T-shaped plate and the rectangular plate, and an inclined surface is provided at one end of the vertical section of the T-shaped plate away from the horizontal section of the U-shaped frame.

[0013] According to an embodiment of the present invention, the pushing component includes a threaded rod installed at the front end of the vertical section of the L-shaped frame, and a conical threaded sleeve is threadedly connected to the surface of the threaded rod.

[0014] According to an embodiment of the present invention, the extension component includes an extension plate that is slidably connected to the C-plate, a top rod is installed at one end of the extension plate away from the inner side of the C-plate, a slope is provided at one end of the extension plate located on the inner side of the C-plate, a square plate is integrally formed with the rear end of the extension plate, and a telescopic spring is installed between the square plate and the inner arc surface of the C-plate.

[0015] According to an embodiment of the present invention, the adjusting component includes a fixed plate installed at the left end of the vertical section of the L-shaped frame and having an L-shaped structure, the right end of the longitudinal section of the fixed plate is symmetrically connected with rolling assemblies in the upper and lower parts, a sheet-like thin plate that passes through two rolling assemblies at the same time is installed on the upper side of the right end of the longitudinal section of the fixed plate, and a tightening assembly is connected to the longitudinal section of the fixed plate.

[0016] According to an embodiment of the present invention, the rolling assembly includes two rolling frames that are symmetrically distributed front to back and fixedly connected to the right end of the longitudinal section of the fixed plate, and two rotating rollers that are symmetrically distributed up and down are rotatably connected between the two rolling frames.

[0017] According to an embodiment of the present invention, the clamping assembly includes a rectangular through hole opened on the longitudinal section of the fixed plate, a feed screw is threadedly connected to the lower end of the longitudinal section of the fixed plate, the upper end of the feed screw is rotatably connected to a clamping plate located in the rectangular through hole, and a cylindrical rod is symmetrically installed front and back at the lower end of the clamping plate, and the cylindrical rod slides through the lower end of the longitudinal section of the fixed plate.

[0018] In summary, the present invention includes the following beneficial technical effects: 1. The limiting unit used in the present invention can be adjusted to change the contact area of ​​the graphene thermal conductive film, and realize the tensile strength test of the graphene thermal conductive film under different contact areas on a detection device, which effectively improves the applicability of the detection device, and there is no need to remove the graphene thermal conductive film from the detection device during the adjustment process, thereby reducing the steps of adjusting the contact area of ​​the graphene thermal conductive film and improving the detection efficiency.

[0019] 2. The clamping unit used in the present invention can realize the function of performing multiple different detection methods on the same detection device according to the adjustment of the usage mode, and there is no need to add other structures. The change of the detection method is simple and convenient, which effectively improves the flexibility of the use of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0022] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0023] Figure 3 A front view of the present invention is shown.

[0024] Figure 4 A left side view of the present invention is shown.

[0025] Figure 5 Shows Figure 3 Sectional view of AA.

[0026] Figure 6 Shows Figure 4 Cross-sectional view of BB.

[0027] Figure 7 Shows Figure 6 Magnified view of the middle N region.

[0028] Figure 8 The schematic diagram of the structure of part of the L-shaped frame, C-shaped plate, pushing component and extension component of the present invention is shown.

[0029] Fig. 9 The working schematic diagram of the present invention is shown.

[0030] Fig.10 Shows Figure 6 Magnified view of the X area in the middle.

[0031] The above drawings include the following reference numerals: 1, bottom plate; 2, U-shaped frame; 3, clamping unit; 31, height adjustment component; 311, rectangular frame; 312, rectangular rod; 313, positioning through hole; 314, positioning plate; 32, U-shaped plate; 33, clamping component; 331, sliding frame; 332, semicircular groove; 333, adjusting screw; 334, pressing plate; 335, guide column; 34, traction component; 341, L-shaped plate; 342, traction rod; 343, inclined opening; 344, positioning assembly; 3441, rectangular plate; 3442, T-shaped plate; 34 43. Connecting spring; 345. Limit rod; 4. Limit unit; 41. L-shaped frame; 42. C-shaped plate; 43. Pushing component; 431. Threaded rod; 432. Conical threaded sleeve; 44. Extension component; 441. Extension plate; 442. Push rod; 443. Telescopic spring; 45. Adjusting component; 451. Fixed plate; 452. Rolling assembly; 4521. Rolling frame; 4522. Rotating roller; 453. Sheet metal plate; 454. Tightening assembly; 4541. Rectangular through hole; 4542. Feed screw; 4543. Tightening plate; 4544. Cylindrical rod. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1-Figure 4 and Fig. 9 A detection device for a graphene thermal conductive film comprises a base plate 1, and a U-shaped frame 2 with an opening facing downward is installed on the upper end of the base plate 1.

[0034] See also Figure 1 and Figure 5 The detection device of the graphene thermal conductive film also includes a limit unit 4, which is connected to the upper end of the base plate 1 and is located on the right side of the U-shaped frame 2. The limit unit 4 includes an L-shaped frame 41 installed at the upper end of the base plate 1, and a C-shaped plate 42 with an opening facing left is installed at the front end of the vertical section of the L-shaped frame 41. A pushing component 43 connected to the front end of the vertical section of the L-shaped frame 41 is arranged on the inner side of the C-shaped plate 42. A plurality of circumferentially evenly distributed extension components 44 are connected to the C-shaped plate 42, and an adjusting component 45 is connected to the left end of the vertical section of the L-shaped frame 41.

[0035] Before the inspection, the base plate 1 is fixed at the working position, and the base plate 1 positions the C-shaped plate 42 , the pushing component 43 , the extending component 44 and the adjusting component 45 through the L-shaped frame 41 .

[0036] See also Figure 1 , Figure 2 and Figure 7 The adjusting component 45 includes a fixed plate 451 installed at the left end of the vertical section of the L-shaped frame 41 and having an L-shaped structure. The right end of the longitudinal section of the fixed plate 451 is symmetrically connected with a rolling assembly 452. A sheet-like thin plate 453 that passes through two rolling assemblies 452 at the same time is installed on the upper side of the right end of the longitudinal section of the fixed plate 451. A tightening assembly 454 is connected to the longitudinal section of the fixed plate 451.

[0037] See also Figure 7 The rolling assembly 452 includes two rolling frames 4521 which are symmetrically distributed front to back and fixedly connected to the right end of the longitudinal section of the fixed plate 451 , and two rotating rollers 4522 which are symmetrically distributed up and down are rotatably connected between the two rolling frames 4521 .

[0038] Before testing, the sheet-like thin plate 453 passes through between the two rotating rollers 4522 at the top and bypasses the outside of the multiple extension parts 44, and then passes through the two rolling frames 4521 at the bottom to enter the tightening assembly 454. At this time, the sheet-like thin plate 453 is in a bent state, and the multiple extension parts 44 support the sheet-like thin plate 453, and then support the graphene thermal conductive film to be tested. At this time, the tightening assembly 454 does not tighten and limit the sheet-like thin plate 453.

[0039] See also Figure 1 , Figure 5 and Figure 8 The pushing component 43 includes a threaded rod 431 installed at the front end of the vertical section of the L-shaped frame 41, and a conical threaded sleeve 432 is threadedly connected to the surface of the threaded rod 431.

[0040] See also Figure 5 , Figure 6 and Figure 8 The extension component 44 includes an extension plate 441 that is slidably connected to the C-shaped plate 42, a top rod 442 is installed at one end of the extension plate 441 away from the inner side of the C-shaped plate 42, and a slope is provided at one end of the extension plate 441 located on the inner side of the C-shaped plate 42. A square plate is integrally formed with the rear end of the extension plate 441, and a telescopic spring 443 is installed between the square plate and the inner arc surface of the C-shaped plate 42.

[0041] During detection, the conical threaded sleeve 432 is rotated so that the conical threaded sleeve 432 is in a state of not contacting the extension plate 441. At this time, the multiple extension plates 441 drive the multiple push rods 442 to be closest to the C-plate 42 through the corresponding telescopic springs 443, and the semicircle formed by the multiple push rods 442 is at the minimum diameter.

[0042] See also Figure 1 , Figure 2 and Figure 7 The clamping assembly 454 includes a rectangular through hole 4541 opened on the longitudinal section of the fixed plate 451, a feed screw 4542 is threadedly connected to the lower end of the longitudinal section of the fixed plate 451, and the upper end of the feed screw 4542 is rotatably connected to a clamping plate 4543 located in the rectangular through hole 4541, and a cylindrical rod 4544 is symmetrically installed at the lower end of the clamping plate 4543, and the cylindrical rod 4544 slides through the lower end of the longitudinal section of the fixed plate 451.

[0043] During testing, the end of the sheet-like thin plate 453 passes through the rectangular through hole 4541 and is located above the tightening plate 4543. After the positions of the multiple push rods 442 are adjusted, the sheet-like thin plate 453 located in the rectangular through hole 4541 is pulled to ensure that the sheet-like thin plate 453 is close to the multiple push rods 442. Then, the feed screw 4542 is rotated. The feed screw 4542 drives the tightening plate 4543 to move upward and tighten the sheet-like thin plate 453 to prevent the sheet-like thin plate 453 from being moved due to force during the testing process.

[0044] See also Figure 1 , Figure 2 and Figure 6 The detection device of the graphene thermal conductive film also includes a clamping unit 3, which is provided with two and is symmetrically connected to the upper and lower ends of the horizontal section of the U-shaped frame 2, and the clamping unit 3 includes a height adjustment component 31 connected to the horizontal section of the U-shaped frame 2, and the end of the height adjustment component 31 away from the horizontal section of the U-shaped frame 2 is connected to a U-shaped plate 32 with an opening away from the horizontal section of the U-shaped frame 2, a clamping component 33 is connected inside the U-shaped plate 32, and a traction component 34 is connected to the clamping component 33.

[0045] See also Figure 1 , Figure 2 and Figure 6 The height adjustment component 31 includes a rectangular frame 311 installed on the horizontal section of the U-shaped frame 2, a rectangular rod 312 is slidably connected in the rectangular frame 311, and the end of the rectangular rod 312 away from the rectangular frame 311 is fixedly connected to the middle section of the U-shaped plate 32. A plurality of evenly distributed positioning through holes 313 are opened on the rectangular rod 312, and a positioning plate 314 is inserted through the side of the rectangular frame 311 away from the horizontal section of the U-shaped frame 2, and the positioning plate 314 is plugged into and matched with any one of the positioning through holes 313.

[0046] Before the detection, the bottom plate 1 limits the two rectangular frames 311 through the U-shaped frame 2. According to the needs of the graphene thermal conductive film detection position, the two rectangular rods 312 are slid in sequence, and the rectangular rods 312 drive the two U-shaped plates 32 to move. When the rectangular rods 312 move to the required position, the positioning plate 314 passes through the rectangular frame 311 and is inserted into the corresponding positioning through hole 313 to realize the positioning of the rectangular rods 312.

[0047] See also Figure 1 , Figure 2 and Figure 6The clamping component 33 includes a sliding frame 331 slidably connected between the two vertical sections of the U-shaped plate 32. The sliding frame 331 is of a rectangular structure. A plurality of evenly distributed semicircular grooves 332 are provided on the inner end surface of the frame wall of the sliding frame 331 close to the rectangular rod 312. An adjusting screw 333 is threadedly connected to the frame wall of the sliding frame 331 away from the rectangular rod 312. An end of the adjusting screw 333 close to the rectangular rod 312 is rotatably connected to a clamping plate 334. An end of the clamping plate 334 close to the adjusting screw 333 is symmetrically installed with a guide column 335 that penetrates and cooperates with the frame wall of the sliding frame 331. An end of the clamping plate 334 away from the adjusting screw 333 is integrally formed with a plurality of evenly distributed semi-cylindrical protrusions.

[0048] During specific operation, during the movement of the two U-shaped plates 32, the U-shaped plates 32 drive the sliding frame 331 to move. When the U-shaped plates 32 move to the desired position and are positioned, the two ends of the graphene thermal conductive film to be detected are respectively passed through the corresponding two sliding frames 331, and the middle of the graphene thermal conductive film is bypassed from the outside of the sheet-like thin plate 453. Then, the two adjusting screws 333 are rotated in sequence, and the adjusting screws 333 drive the pressing plate 334 to move toward the end of the graphene thermal conductive film and press the graphene thermal conductive film into the multiple semi-circular grooves 332 on the inner end surface of the frame wall of the sliding frame 331 through the multiple semi-cylindrical protrusions (such as Fig. 9 As shown), the strength of clamping the graphene thermally conductive film is increased. At this time, the graphene thermally conductive film is in a relaxed state and provides a change margin for the subsequent change of the arc structure formed by the sheet-like thin plate 453.

[0049] See also Figure 1 , Figure 2 , Figure 6 and Fig.10 The traction component 34 includes an L-shaped plate 341 installed at the left end of the horizontal section of the U-shaped plate 32, and the vertical section of the L-shaped plate 341 is slidably penetrated by a traction rod 342, and the traction rod 342 is a U-shaped structure with an opening toward the sliding frame 331. The open end of the traction rod 342 is fixedly connected to the sliding frame 331, and an inclined opening 343 is provided in the middle of the inner end of the longitudinal section of the traction rod 342. The left end of the L-shaped plate 341 is connected to a positioning assembly 344, and a limiting rod 345 is symmetrically installed on the right end of the longitudinal section of the traction rod 342, and the inclined opening 343 is located between the front and rear limiting rods 345.

[0050] See also Figure 1 , Figure 2 and Figure 6The positioning assembly 344 includes a rectangular plate 3441 installed at the left end of the L-shaped plate 341 near the horizontal section of the U-shaped frame 2, a vertical section of the T-shaped plate 3442 is slidably penetrated on the rectangular plate 3441, a connecting spring 3443 is installed between the horizontal section of the T-shaped plate 3442 and the rectangular plate 3441, and an inclined surface is provided at one end of the vertical section of the T-shaped plate 3442 away from the horizontal section of the U-shaped frame 2.

[0051] Before testing, the two traction rods 342 are respectively connected to the existing tension detector. When the tensile strength test is performed from one end of the graphene thermal conductive film, any traction rod 342 is pushed toward the corresponding U-shaped plate 32, and the inclined opening 343 in the middle of the traction rod 342 pushes the inclined surface on the vertical section of the corresponding T-shaped plate 3442. The T-shaped plate 3442 moves under the force and stretches the connecting spring 3443 through the horizontal section, thereby relieving the influence on the movement of the traction rod 342. When the middle section of the traction rod 342 is separated from the T-shaped plate 3442, the connecting spring 3443 in the stretched state drives the T-shaped plate 3442 to reset. At this time, the traction rod 342 drives the two limit The rod 345 is in close contact with the vertical section of the L-shaped plate 341, and the vertical section of the T-shaped plate 3442 cooperates with the two limit rods 345 to realize the function of positioning the traction rod 342, thereby quickly limiting one end of the graphene thermal conductive film without adding a new clamping device. Subsequently, the tension detector at the other end of the graphene thermal conductive film is started, and the tension detector drives the graphene thermal conductive film to move and gradually fits tightly with the sheet-like thin plate 453. The graphene thermal conductive film continues to be stressed and gradually tightens. The reading on the tension detector is observed until the reading on the tension detector reaches the detection requirement or the graphene thermal conductive film is broken, then the tension detector is stopped and the detection result is recorded.

[0052] When testing the tensile strength of the graphene thermal conductive film from both ends, it is only necessary to start two tension detectors at the same time. The two tension detectors drive the graphene thermal conductive film to move and gradually fit tightly against the sheet-like thin plate 453. The graphene thermal conductive film continues to be stressed and gradually tightens. The readings on the two tension detectors are observed until the readings on the tension detectors reach the test requirements or the graphene thermal conductive film breaks. Then, the tension detectors are stopped and the test results are recorded. The two testing methods effectively improve the flexibility of the use of the testing device, and the operation of changing the testing method is simple and convenient.

[0053] During the detection process, after one detection is completed, the conical threaded sleeve 432 is rotated, and the conical threaded sleeve 432 pushes the slopes on the multiple extension plates 441. The multiple extension plates 441 drive the corresponding push rods 442 to move, thereby changing the shape of the sheet-like thin plate 453, thereby achieving the purpose of changing the contact area between the graphene thermal conductive film and the sheet-like thin plate 453. In addition, there is no need to remove the graphene thermal conductive film from the detection device during the adjustment process, thereby reducing the steps of contact area adjustment and improving the efficiency of detecting the graphene thermal conductive film under different contact areas. After the adjustment is completed, the test is performed again, and this step is repeated. The tensile strength of the graphene thermal conductive film under different contact areas can be detected on one detection device, which effectively improves the applicability of the detection device.

[0054] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A graphene thermal conductive film detection device, comprising a base plate (1), wherein a U-shaped frame (2) with an opening facing downward is installed on the upper end of the base plate (1), characterized in that: Also includes: The clamping units (3) are provided with two and are symmetrically connected to the upper and lower ends of the horizontal section of the U-shaped frame (2). The clamping units (3) include a height adjustment component (31) connected to the horizontal section of the U-shaped frame (2), one end of the height adjustment component (31) away from the horizontal section of the U-shaped frame (2) is connected to a U-shaped plate (32) with an opening away from the horizontal section of the U-shaped frame (2), a clamping component (33) is connected inside the U-shaped plate (32), and a traction component (34) is connected to the clamping component (33); A limiting unit (4) is connected to the upper end of the base plate (1) and is located to the right of the U-shaped frame (2). The limiting unit (4) comprises an L-shaped frame (41) installed at the upper end of the base plate (1). A C-shaped plate (42) with an opening facing left is installed at the front end of the vertical section of the L-shaped frame (41). A pushing component (43) connected to the front end of the vertical section of the L-shaped frame (41) is arranged on the inner side of the C-shaped plate (42). A plurality of circumferentially evenly distributed extending components (44) are connected to the C-shaped plate (42). An adjusting component (45) is connected to the left end of the vertical section of the L-shaped frame (41). The pushing component (43) comprises a threaded rod (431) installed at the front end of the vertical section of the L-shaped frame (41), and a conical threaded sleeve (432) is threadedly connected on the surface of the threaded rod (431); The extension component (44) comprises an extension plate (441) that is slidably connected to the C-shaped plate (42); a push rod (442) is installed at one end of the extension plate (441) away from the inner side of the C-shaped plate (42); a slope is provided at one end of the extension plate (441) located on the inner side of the C-shaped plate (42); a square plate is integrally formed at the rear end of the extension plate (441); and a telescopic spring (443) is installed between the square plate and the inner arc surface of the C-shaped plate (42); The adjusting component (45) comprises a fixed plate (451) installed at the left end of the vertical section of the L-shaped frame (41) and having an L-shaped structure, the right end of the longitudinal section of the fixed plate (451) is symmetrically connected to a rolling assembly (452) in the upper and lower directions, a sheet-like thin plate (453) passing through two rolling assemblies (452) is installed at the upper side of the right end of the longitudinal section of the fixed plate (451), and a tightening assembly (454) is connected to the longitudinal section of the fixed plate (451); The rolling assembly (452) comprises two rolling frames (4521) which are symmetrically distributed front and back and fixedly connected to the right end of the longitudinal section of the fixed plate (451); two rotating rollers (4522) which are symmetrically distributed up and down are rotatably connected between the two rolling frames (4521); The clamping assembly (454) includes a rectangular through hole (4541) opened on the longitudinal section of the fixed plate (451); the lower end of the longitudinal section of the fixed plate (451) is threadedly connected with a feed screw (4542); the upper end of the feed screw (4542) is rotatably connected with a clamping plate (4543) located in the rectangular through hole (4541); a cylindrical rod (4544) is symmetrically installed at the lower end of the clamping plate (4543) in the front and rear directions; the cylindrical rod (4544) slides through the lower end of the longitudinal section of the fixed plate (451).

2. A graphene thermally conductive film detection device according to claim 1, characterized in that: The height adjustment component (31) comprises a rectangular frame (311) mounted on the horizontal section of the U-shaped frame (2), a rectangular rod (312) being slidably connected inside the rectangular frame (311), one end of the rectangular rod (312) away from the rectangular frame (311) being fixedly connected to the middle section of the U-shaped plate (32), a plurality of evenly distributed positioning through holes (313) being provided on the rectangular rod (312), a positioning plate (314) being inserted through one side of the rectangular frame (311) away from the horizontal section of the U-shaped frame (2), and the positioning plate (314) being plugged into and matched with any one of the positioning through holes (313).

3. A detection device for a graphene thermally conductive film according to claim 2, characterized in that: The clamping component (33) comprises a sliding frame (331) slidably connected between two vertical sections of the U-shaped plate (32); the sliding frame (331) is of a rectangular structure; a plurality of evenly distributed semicircular grooves (332) are provided on the inner end surface of the frame wall of the sliding frame (331) close to the rectangular rod (312); an adjusting screw (333) is threadedly connected to the frame wall of the sliding frame (331) away from the rectangular rod (312); an end of the adjusting screw (333) close to the rectangular rod (312) is rotatably connected to a clamping plate (334); an end of the clamping plate (334) close to the adjusting screw (333) is symmetrically provided with a guide column (335) that penetrates and cooperates with the frame wall of the sliding frame (331); an end of the clamping plate (334) away from the adjusting screw (333) is integrally formed with a plurality of evenly distributed semi-cylindrical protrusions.

4. The detection device for a graphene thermally conductive film according to claim 3, characterized in that: The traction component (34) comprises an L-shaped plate (341) mounted on the left end of the horizontal section of the U-shaped plate (32); a traction rod (342) is slidably connected to the vertical section of the L-shaped plate (341); the traction rod (342) is in a U-shaped structure with its opening facing the sliding frame (331); the open end of the traction rod (342) is fixedly connected to the sliding frame (331); an inclined opening (343) is provided in the middle of the inner end of the longitudinal section of the traction rod (342); a positioning assembly (344) is connected to the left end of the L-shaped plate (341); and a limiting rod (345) is symmetrically installed at the front and rear ends of the longitudinal section of the traction rod (342); the inclined opening (343) is located between the two limiting rods (345) at the front and rear ends.

5. A graphene thermally conductive film detection device according to claim 4, characterized in that: The positioning assembly (344) comprises a rectangular plate (3441) installed at the left end of the L-shaped plate (341) near the horizontal section of the U-shaped frame (2); a vertical section connected to a T-shaped plate (3442) is slidably penetrated on the rectangular plate (3441); a connecting spring (3443) is installed between the horizontal section of the T-shaped plate (3442) and the rectangular plate (3441); and an inclined surface is provided at one end of the vertical section of the T-shaped plate (3442) away from the horizontal section of the U-shaped frame (2).

Images