Device for testing tensile and torsional strength of nano material

Abstract

The utility model discloses a device for testing tensile and torsional strength of a nano material, which belongs to the technical field of testing devices and comprises a base and two groups of support frames connected to two sides of the top of the base, a fixed frame is connected between the tops of the two groups of support frames, and a movable frame is arranged below the fixed frame and positioned between the two groups of support frames in an up-down sliding manner. The two sides of the front end of the fixed frame are each provided with a connecting assembly used for being connected with the end of a nanometer material, and a fixed hanging ring is arranged in the center of the top of the movable frame. The connecting assembly comprises a connecting column, the connecting column is rotationally connected with the fixing frame, a clamping assembly used for fixing a nano material is arranged at the front end of the connecting column, and a positioning assembly used for being fixed to the fixing frame is arranged at the rear end of the connecting column; the end part of the detected section of the nanometer material is wound and attached to the surface of the connecting column, so that the end part of the detected section of the nanometer material is prevented from being damaged by pressing, and the end part of the nanometer material is rolled and self-locked when being pulled, so that the connection is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a nano material tensile and torsional strength testing device. Background Art

[0002] Flexible nanomaterials are widely used in flexible electronic devices, biomedical materials, smart sensors and other fields due to their excellent mechanical properties, conductivity and flexibility. However, in the research and development process, evaluating their tensile and torsional strength is a key link.

[0003] During the tensile and torsional strength test of flexible nanomaterials, due to the softness of the flexible nanomaterials themselves, they are easily damaged by pressure when their ends are clamped and fixed, so that they are deformed before the test, which in turn affects the accuracy of the test results. For this reason, we propose a tensile and torsional strength test device for nanomaterials. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a nano material tensile and torsional strength testing device, the end of the nano material is inserted into the slot of the connecting column, and is locked and fixed by a clamping component to prevent it from falling out, the connecting column is rotated relative to the fixing frame to roll up the nano material, and the measured length of the nano material can be adjusted, and the positioning component fixes the connecting column to prevent it from rotating, the end of the measured section of the nano material is wrapped and fits the surface of the connecting column to avoid pressure loss on the end of the measured section of the nano material, and secondly the end of the nano material is rolled up and locked when being pulled.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A nano material tensile and torsional strength testing device comprises a base and two groups of support frames connected to both sides of the top of the base, a fixed frame is connected between the tops of the two groups of support frames, and a movable frame is provided below the fixed frame and between the two groups of support frames to slide up and down.

[0007] Both sides of the front end of the fixed frame are provided with connection components for connecting the ends of the nanomaterials, and a fixed hanging ring is provided at the top center of the movable frame;

[0008] The connection component includes a connection column, which is rotatably connected to a fixing frame. The front end of the connection column is provided with a clamping component for fixing the nano material, and the rear end of the connection column is provided with a positioning component for fixing with the fixing frame.

[0009] As a preferred solution of a nano material tensile and torsional strength testing device described in the utility model, wherein: the fixing frame is provided with a sleeve hole corresponding to the rear end of the connecting column, the rear end face of the connecting column is coaxially connected with a guide column, the guide column movably penetrates the sleeve hole and is rotatably connected to each other, and the front end face of the connecting column is provided with a card slot.

[0010] As a preferred solution of the nano material tensile and torsional strength testing device described in the utility model, the positioning component includes a limit block, the limit block is connected to the outer wall of the front port of the sleeve hole, and the rear end face of the connecting column is provided with a limit groove corresponding to the limit block.

[0011] As a preferred solution of the nano material tensile and torsional strength testing device described in the utility model, the positioning assembly also includes a cap and a spring, the cap is rotatably connected to the tail end of the guide column penetrating the sleeve hole, and the spring is connected between the cap and the fixing frame.

[0012] As a preferred solution of a nano material tensile and torsional strength testing device described in the utility model, the clamping assembly includes a splint and an extrusion block, the connecting column is located on both sides of the slot and has an assembly groove in the front-to-back direction, the extrusion block is movably installed inside the assembly groove, the side wall of the slot is provided with a through hole connected to the assembly groove, the outer shape of the splint is a "Y"-shaped profile, the splint is located inside the through hole and the lower end is connected and fixed to the rear end inner wall of the through hole, and a branch on one side of the upper end of the splint is located inside the assembly groove.

[0013] As a preferred solution of the nano material tensile and torsional strength testing device described in the utility model, the outer surface of the branch of the clamping plate facing one side of the slot is covered with a gasket.

[0014] As a preferred solution of the nano material tensile and torsional strength testing device described in the utility model, the clamping assembly also includes a rotating ring, a threaded groove is provided on the rear end outer surface of the connecting column, the rotating ring is movably sleeved on the outer surface of the connecting column and threadedly engaged with the threaded groove, a connecting rod is provided on the front end surface of the rotating ring for circular rotation, and the other end of the connecting rod penetrates the connecting column and is connected to the extrusion block.

[0015] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0016] The end of the nanomaterial is inserted into the slot of the connecting column and locked by the clamping assembly to prevent it from falling out. The connecting column rotates relative to the fixing frame to roll up the nanomaterial, thereby adjusting the measured length of the nanomaterial. The positioning assembly then fixes the connecting column to prevent it from rotating. The end of the measured section of the nanomaterial is wrapped and fits the surface of the connecting column to avoid pressure loss on the end of the measured section of the nanomaterial. Secondly, the end of the nanomaterial is rolled up and locked when being pulled, and the connection is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a nano material tensile and torsional strength testing device.

[0018] Figure 2 Schematic diagram of a guide column of a nanomaterial tensile and torsional strength testing device.

[0019] Figure 3 Schematic diagram of the connecting column of a nanomaterial tensile and torsional strength testing device.

[0020] Figure 4 A schematic diagram of a splint for a nanomaterial tensile and torsional strength testing device.

[0021] Among them: 1. Base; 2. Support frame; 3. Fixed frame; 4. Movable frame; 5. Fixed hanging ring; 6. Connecting column; 7. Hole; 8. Guide column; 9. Limit block; 10. Limit groove; 11. Cover cap; 12. Spring; 13. Slot; 14. Threaded groove; 15. Rotary ring; 16. Through hole; 17. Clamp; 18. Gasket; 19. Connecting rod; 20. Assembly groove; 21. Extrusion block. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example

[0026] Please refer to Figures 1 to 4 As shown, the utility model provides a nano material tensile and torsion strength testing device, comprising a base 1 and two groups of support frames 2 connected to both sides of the top of the base 1, a fixed frame 3 is connected between the tops of the two groups of support frames 2, and a movable frame 4 is provided below the fixed frame 3 and between the two groups of support frames 2 to slide up and down.

[0027] Both sides of the front end of the fixed frame 3 are provided with connection components for connecting the ends of the nanomaterial, and a fixed hanging ring 5 is provided at the top center of the movable frame 4. The flexible nanomaterial passes through the fixed hanging ring 5 of the movable frame 4, and then the two ends of the flexible nanomaterial are respectively fixed on the connection components of the fixed frame 3. The movable frame 4 moves downward along the support frame 2 to pull the flexible nanomaterial. The movement and force of the movable frame 4 belong to the prior art, and the principle is not repeated here.

[0028] The connecting assembly includes a connecting column 6, which is rotatably connected to the fixing frame 3. The fixing frame 3 is provided with a sleeve hole 7 corresponding to the rear end of the connecting column 6. The rear end face of the connecting column 6 is coaxially connected with a guide column 8. The guide column 8 movably penetrates the sleeve hole 7 and is rotatably connected to each other. The front end face of the connecting column 6 is provided with a card slot 13. The front end of the connecting column 6 is provided with a clamping assembly for fixing the nano material. The end of the flexible nano material is inserted into the card slot 13 of the connecting column 6 and is locked and fixed by the clamping assembly to prevent it from coming out. The connecting column 6 rotates relative to the fixing frame 3 to reel in the flexible nano material, that is, the adjustable The measured length of the flexible nano material is adjusted to be suitable for actual test needs, and then the positioning component is used to fix the connecting column 6 to prevent the connecting column 6 from rotating relative to the fixing frame 3. The end of the flexible nano material will not rotate or displace during the test. At the same time, the end of the tested section of the flexible nano material is wound and fitted to the surface of the connecting column 6. First, the end of the flexible nano material is rolled up and self-locked when being pulled, and the connection is more secure so that it will not be separated during the test. Secondly, it avoids causing pressure loss to the end of the tested section of the flexible nano material, so that the tensile and torsional strength test result of the flexible nano material is more accurate.

[0029] The clamping assembly includes a clamping plate 17 and an extrusion block 21. The connection column 6 is located on both sides of the card slot 13 and has an assembly slot 20 in the front-to-back direction. The extrusion block 21 is movably installed in the assembly slot 20. The side wall of the card slot 13 has a through hole 16 connected to the assembly slot 20. The outer shape of the clamping plate 17 is a "Y"-shaped profile. The clamping plate 17 is located in the through hole 16 and the lower end is connected and fixed to the rear end inner wall of the through hole 16. The upper end of the clamping plate 17 has a branch located in the assembly slot 20. The outer surface of the branch of the clamping plate 17 facing the side of the card slot 13 is covered with a gasket 18. The extrusion block 21 moves forward and backward in the assembly slot 20 to squeeze the clamping plate 17. The clamping plate 17 is deformed and displaced toward the card slot 13, so that the clamping plate 17 can clamp the nano material.

[0030] The clamping assembly also includes a rotating ring 15. The rear end outer surface of the connecting column 6 is provided with a thread groove 14. The rotating ring 15 is movably sleeved on the outer surface of the connecting column 6 and is threadedly screwed with the thread groove 14. The front end surface of the rotating ring 15 is provided with a connecting rod 19 for circumferential rotation. The other end of the connecting rod 19 penetrates the connecting column 6 and is connected to the extrusion block 21. The rotating ring 15 rotates so as to be screwed forward or backward relative to the connecting column 6 via the thread groove 14. The rotating ring 15 pushes or pulls the extrusion block 21 with the connecting rod 19.

[0031] The rear end of the connecting column 6 is provided with a positioning assembly for fixing with the fixing frame 3, the positioning assembly includes a limit block 9, the limit block 9 is connected to the outer wall of the front port of the sleeve hole 7, the rear end face of the connecting column 6 is provided with a limit groove 10 corresponding to the limit block 9, the positioning assembly also includes a cap 11 and a spring 12, the cap 11 is rotatably connected to the guide column 8 and penetrates the tail end of the sleeve hole 7, the spring 12 is connected between the cap 11 and the fixing frame 3, the spring 12 pushes the cap 11 to pull the connecting column 6 via the guide column 8, so that the limit groove 10 of the connecting column 6 is engaged with the limit block 9 on the fixing frame 3, thereby preventing the connecting column 6 from rotating, conversely, the connecting column 6 is pulled forward so that the limit groove 10 is disengaged from the limit block 9, and the connecting column 6 can be rotated.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nano material tensile and torsional strength testing device, comprising a base (1) and two groups of support frames (2) connected to both sides of the top of the base (1), a fixed frame (3) connected between the tops of the two groups of support frames (2), and a movable frame (4) is provided below the fixed frame (3) and between the two groups of support frames (2) to slide up and down, characterized in that: Both sides of the front end of the fixed frame (3) are provided with connection components for connecting the ends of the nano material, and a fixed hanging ring (5) is provided at the top center of the movable frame (4); The connection assembly comprises a connection column (6), the connection column (6) being rotationally connected to the fixing frame (3), the front end of the connection column (6) being provided with a clamping assembly for fixing the nano material, and the rear end of the connection column (6) being provided with a positioning assembly for fixing to the fixing frame (3).

2. A nano material tensile and torsional strength testing device according to claim 1, characterized in that: The fixing frame (3) is provided with a sleeve hole (7) corresponding to the rear end of the connecting column (6); the rear end surface of the connecting column (6) is coaxially connected to a guide column (8); the guide column (8) movably penetrates the sleeve hole (7) and is rotatably connected to each other; and the front end surface of the connecting column (6) is provided with a slot (13).

3. A nano material tensile and torsional strength testing device according to claim 2, characterized in that: The positioning assembly comprises a limit block (9), the limit block (9) being connected to the outer wall of the front end of the sleeve hole (7), and a limit groove (10) being provided on the rear end surface of the connecting column (6) corresponding to the limit block (9).

4. A nano material tensile and torsional strength testing device according to claim 3, characterized in that: The positioning assembly further comprises a cover cap (11) and a spring (12); the cover cap (11) is rotatably connected to the tail end of the guide column (8) penetrating the sleeve hole (7); and the spring (12) is connected between the cover cap (11) and the fixing frame (3).

5. The nano material tensile and torsional strength testing device according to claim 2, characterized in that: The clamping assembly comprises a clamping plate (17) and an extrusion block (21); the connection column (6) is located on both sides of the slot (13) and has an assembly slot (20) formed in the front-to-back direction; the extrusion block (21) is movably mounted inside the assembly slot (20); a through hole (16) connected to the assembly slot (20) is formed on the side wall of the slot (13); the clamping plate (17) has a "Y"-shaped profile; the clamping plate (17) is located inside the through hole (16) and the lower end is connected and fixed to the rear end inner wall of the through hole (16); and a branch on one side of the upper end of the clamping plate (17) is located inside the assembly slot (20).

6. A nano material tensile and torsional strength testing device according to claim 5, characterized in that: The outer surface of the clamping plate (17) that branches toward one side of the clamping slot (13) is covered with a gasket (18).

7. The nano material tensile and torsional strength testing device according to claim 5, characterized in that: The clamping assembly further comprises a rotating ring (15), a thread groove (14) is formed on the outer surface of the rear end of the connecting column (6), the rotating ring (15) is movably sleeved on the outer surface of the connecting column (6) and is threadedly engaged with the thread groove (14), a connecting rod (19) is provided on the front end surface of the rotating ring (15) for circumferential rotation, and the other end of the connecting rod (19) penetrates the connecting column (6) and is connected to the extrusion block (21).

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