vacuum liquid nitrogen insulated tensile testing machine

Abstract

The utility model relates to a vacuum liquid nitrogen heat -proof adhesive tape low temperature tensile testing machine, including the console, the top of console is provided with the support block, the inside of support block is provided with the lead screw, the outside of lead screw is sleeved and has the screw block, the front end of screw block is provided with the upper clamping mechanism, the upper end surface fixed connection of console has the mounting block, the upper end surface fixed connection of mounting block has the mounting seat, the inside of mounting seat is provided with the thread fixing groove, the top of mounting seat is provided with the support column, the top of support column is provided with the U type board, the inside of U type board upper and lower both ends all are provided with the clamping roller, the side of two clamping rollers all is connected with the adjusting lever, the lower end surface fixed connection of support column has the connecting disc, the lower end surface of connecting disc is provided with the meshing plug connector, the upper end surface fixed connection of connecting disc has the fixed part, and the fixed part is annular array and has three, through strengthening the clamping effect to adhesive tape, improve the accuracy of test, and through the clamping structure of convenient dismounting simultaneously, the subsequent cleaning replacement is convenient, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape, and in particular to a low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape. Background Technology

[0002] Vacuum liquid nitrogen insulation tape is an adhesive material designed specifically for extreme low temperatures (such as liquid nitrogen environments) and vacuum conditions. It combines heat insulation, sealing, and durability properties, making it suitable for scientific research, industrial, and biological storage fields. The low-temperature tensile testing machine for vacuum liquid nitrogen insulation tape is mainly used to evaluate the mechanical properties of materials at extreme low temperatures (such as -196℃ liquid nitrogen environments) to ensure the reliability of materials in aerospace, biomedical, and other fields.

[0003] The prior art patent CN219369532U discloses a peel tape holding force testing machine, including a fixed platform, a fixed frame fixedly installed on one side of the fixed platform, a control panel fixedly installed on the surface of the fixed frame, a tensioning mechanism fixedly installed inside the fixed frame, and an adjustment mechanism fixedly installed in the middle of the fixed platform. Through the adjustment mechanism, after the tape is fixed between the mounting base and the slide, the slide is pushed along the slide rail on the surface of the support plate to adjust the tape to a certain angle. At this time, the locking rod is tightened to keep the tape in the adjusted position. The tensioning mechanism is then controlled to stretch the tape again, allowing observation of the change in holding force of the tape at different angles, thus facilitating the acquisition of more comprehensive data.

[0004] However, the existing tensile testing device for thermal insulation tape does not provide a perfect fixation effect on the tape during the test. One side is adhesive, and relying solely on conventional clamping can easily cause it to detach, affecting the subsequent test results. In addition, the clamping structure will cause the surface to stick after long-term use, making it inconvenient to clean. Furthermore, its integrated structure makes it difficult to disassemble, affecting subsequent work efficiency. Utility Model Content

[0005] To overcome the shortcomings of existing tensile testing devices for thermal insulation tape, such as insufficient tape fixation during testing, reliance on conventional clamping leading to detachment, surface stickiness from prolonged use making cleaning difficult, and the integrated structure hindering disassembly and impacting subsequent work efficiency.

[0006] The technical solution of this utility model is as follows: a low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape, including a control panel, a support block above the control panel, a lead screw inside the support block, a threaded block sleeved on the outside of the lead screw, an upper clamping mechanism at the front end of the threaded block, a mounting block fixedly connected to the upper end face of the control panel, a mounting seat fixedly connected to the upper end face of the mounting block, a threaded fixing groove inside the mounting seat, a support column above the mounting seat, a U-shaped plate above the support column, clamping rollers at both the upper and lower ends inside the U-shaped plate, an adjusting rod connected to one side of each clamping roller, and a support column fixedly connected to the lower end face of the support column. A connecting plate is fixedly connected, and a meshing connector is provided on the lower end face of the connecting plate. A fixing member is fixedly connected to the upper end face of the connecting plate. There are three fixing members arranged in a ring array. Two second arc-shaped plates are fixedly connected to the front and rear ends of one side of the mounting base. There are three second arc-shaped plates arranged in a ring array. Two second movable plates are provided on the left and right sides between the two second arc-shaped plates. A first movable plate is provided on one side of each of the two second movable plates. A snap-fit ​​connector is provided between the two first movable plates. Two first arc-shaped plates are fixedly connected to the front and rear ends of one side of the mounting base, which is located above the two second arc-shaped plates. The two first movable plates are located between the two first arc-shaped plates.

[0007] Preferably, the engaging connector includes a fixed threaded rod, which is engaged into the threaded groove by a rotating support column.

[0008] Preferably, the fastener includes a U-shaped snap-fit ​​block, with three U-shaped snap-fit ​​blocks arranged in a circular array. The snap-fit ​​component includes the U-shaped snap-fit ​​block and is fitted onto the outside of the U-shaped snap-fit ​​block by a snap-fit ​​plate to strengthen the fixation of the support column.

[0009] Preferably, a third movable shaft is rotatably connected between the two second arc-shaped plates and the two second movable plates for flipping the two second movable plates.

[0010] Preferably, a second movable shaft is rotatably connected between the two first arc-shaped plates and the two first movable plates for flipping the two first movable plates.

[0011] Preferably, a first movable shaft is rotatably connected between the snap-fit ​​plate and the two first movable plates for flipping the snap-fit ​​plate, and is sleeved on the outside of the U-shaped snap-fit ​​block.

[0012] Preferably, each of the two second movable plates is rotatably connected to the two first movable plates via a short shaft. The rotation of the two first movable plates drives the rotation of the two second movable plates, thereby improving the fixation between the support column and the mounting block.

[0013] The beneficial effects of this utility model are:

[0014] 1. This vacuum liquid nitrogen thermal insulation tape low-temperature tensile testing machine uses adjustable clamping rollers, which can be adjusted by rotating the adjusting rod to allow the thermal insulation tape to wrap around the outside of the clamping rollers, thereby improving the clamping effect of the thermal insulation tape and improving the accuracy of subsequent tests.

[0015] 2. This vacuum liquid nitrogen heat-insulating tape low-temperature tensile testing machine features a convenient assembly and disassembly connection structure with upper and lower clamping structures. This facilitates disassembly and subsequent cleaning of the clamping rollers, thereby improving subsequent work efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the vacuum liquid nitrogen heat-insulating tape low-temperature tensile testing machine of this utility model.

[0017] Figure 2 This utility model is shown. Figure 1 A magnified schematic diagram of the three-dimensional structure at point A;

[0018] Figure 3 The diagram shown is an enlarged view of a partial connection of the clamping mechanism of this utility model.

[0019] Figure 4 This utility model is shown. Figure 3 A magnified schematic diagram of the three-dimensional structure at point B;

[0020] Figure 5 The image shown is a partially enlarged bottom view of the clamping structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Control panel; 2. Support block; 3. Lead screw; 4. Upper clamping mechanism; 5. Connecting plate; 6. Mounting block; 7. Support column; 8. U-shaped plate; 9. Clamping roller; 10. Adjusting rod; 11. Mounting seat; 12. Threaded fixing groove; 13. Snap-fit ​​plate; 14. First movable plate; 15. First movable shaft; 16. First arc-shaped plate; 17. Second movable shaft; 18. Second movable plate; 19. Second arc-shaped plate; 20. Third movable shaft; 21. Fixed threaded rod; 22. U-shaped snap-fit ​​block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape, including a control panel 1, a support block 2 above the control panel 1, a lead screw 3 inside the support block 2, a threaded block sleeved on the outside of the lead screw 3, an upper clamping mechanism 4 at the front end of the threaded block, an mounting block 6 fixedly connected to the upper end face of the control panel 1, an mounting seat 11 fixedly connected to the upper end face of the mounting block 6, a threaded fixing groove 12 inside the mounting seat 11, a support column 7 above the mounting seat 11, a U-shaped plate 8 above the support column 7, clamping rollers 9 at both the upper and lower ends of the U-shaped plate 8, an adjusting rod 10 connected to one side of each clamping roller 9, a connecting plate 5 fixedly connected to the lower end face of the support column 7, an engaging insert on the lower end face of the connecting plate 5, and a connecting plate 5 fixedly connected to the upper end face of the connecting plate 5. The mounting base 11 is fixedly connected to three fasteners arranged in a circular array. Two second arc-shaped plates 19 are fixedly connected to both the front and rear ends of one side of the mounting base 11. Three second arc-shaped plates 19 are arranged in a circular array. Two second movable plates 18 are provided on both the left and right sides between the two second arc-shaped plates 19. A first movable plate 14 is provided on one side of each of the two second movable plates 18. A snap-fit ​​device is provided between the two first movable plates 14. Two first arc-shaped plates 16 are fixedly connected to both the front and rear ends of one side of the mounting base 11, above the two second arc-shaped plates 19. The two first movable plates 14 are located between the two first arc-shaped plates 16. The rotation of the adjusting rod 10 drives the rotation of the clamping roller 9, causing the heat-insulating tape to wrap around the outside of the clamping roller 9. The two clamping rollers 9 are used to clamp and fix the tape, improving the effectiveness of subsequent tests.

[0024] The engaging connector includes a fixed threaded rod 21, which is used to fix the threaded rod 21 into the threaded fixing groove 12 by rotating the support column 7. The fixing component includes a U-shaped snap-fit ​​block 22, which is arranged in a ring array of three. The snap-fit ​​component includes a U-shaped snap-fit ​​block 22, which is sleeved on the outside of the U-shaped snap-fit ​​block 22 by a snap-fit ​​plate 13 to strengthen the fixation of the support column 7.

[0025] A third movable shaft 20 is rotatably connected between the two second arc-shaped plates 19 and the two second movable plates 18 for flipping the two second movable plates 18. A second movable shaft 17 is rotatably connected between the two first arc-shaped plates 16 and the two first movable plates 14 for flipping the two first movable plates 14. A first movable shaft 15 is rotatably connected between the snap-fit ​​plate 13 and the two first movable plates 14 for flipping the snap-fit ​​plate 13, and is sleeved on the outside of the U-shaped snap-fit ​​block 22. Each second movable plate 18 is rotatably connected to each of the two first movable plates 14 by a short shaft, which drives the flipping of the two second movable plates 18 by the flipping of the two first movable plates 14, thereby improving the support. The column 7 is fixed to the mounting block 6 by rotating the support column 7, so that the fixing threaded rod 21 below it engages and inserts into the threaded fixing groove 12 inside the mounting base 11 for fixation. By flipping the first movable plate 14, it is flipped through the second movable shaft 17, which in turn drives the second movable plate 18 to flip. Through the connection between the first movable plate 14 and the second movable plate 18, it extends and flips to one side, so that the snap-fit ​​plate 13 is located at the U-shaped snap-fit ​​block 22, so that the snap-fit ​​plate 13 is sleeved on the outside of the U-shaped snap-fit ​​block 22. At the same time as snapping, the first movable plate 14 can be moved backward to enhance the stability of the connection between the U-shaped snap-fit ​​block 22 and the snap-fit ​​plate 13.

[0026] During operation, the support column 7 is rotated so that the fixed threaded rod 21 below it engages and inserts into the threaded fixing groove 12 inside the mounting base 11 for fixation. By flipping the first movable plate 14, the second movable plate 18 is also flipped. Through the connection between the first movable plate 14 and the second movable plate 18, the plate extends and flips to one side, so that the snap-fit ​​plate 13 is located at the U-shaped snap-fit ​​block 22. The snap-fit ​​plate 13 is sleeved on the outside of the U-shaped snap-fit ​​block 22. At the same time as snapping, the first movable plate 14 can be moved backward to enhance the stability of the connection between the U-shaped snap-fit ​​block 22 and the snap-fit ​​plate 13. The rotation of the adjusting rod 10 drives the rotation of the clamping roller 9, so that the heat insulation tape is wrapped around the outside of the clamping roller 9. The two clamping rollers 9 are used to clamp and fix the tape, improving the effect of subsequent tests.

[0027] Through the above steps, the adjustable clamping roller 9 and the rotation adjustment rod 10 allow the heat insulation tape to be wrapped around the outside of the clamping roller 9, thereby improving the clamping effect of the heat insulation tape and improving the accuracy of subsequent tests. This solves the problems of existing heat insulation tape tensile testing devices, which have insufficient tape fixing effect during the test, are prone to detachment due to conventional clamping, and have surface adhesion problems after long-term use, making cleaning inconvenient. Furthermore, their integrated structure makes disassembly difficult, affecting subsequent work efficiency.

Claims

1. A low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape, comprising a control panel (1), characterized in that: A support block (2) is provided above the control panel (1). A lead screw (3) is provided inside the support block (2). A threaded block is sleeved on the outside of the lead screw (3). An upper clamping mechanism (4) is provided at the front end of the threaded block. An installation block (6) is fixedly connected to the upper end face of the control panel (1). An installation seat (11) is fixedly connected to the upper end face of the installation block (6). A threaded fixing groove (12) is opened inside the installation seat (11). A support column (7) is provided above the installation seat (11). A U-shaped plate (8) is provided above the support column (7). A clamping roller (9) is provided at both the upper and lower ends inside the U-shaped plate (8). An adjusting rod (10) is connected to one side of each of the two clamping rollers (9). A connecting plate (5) is fixedly connected to the lower end face of the support column (7). (5) has a meshing connector on its lower end face. The upper end face of the connecting plate (5) is fixedly connected to a fixing member. There are three fixing members in a ring array. The front and rear ends of one side of the mounting base (11) are fixedly connected to a second arc plate (19). There are three second arc plates (19) in a ring array. The left and right sides between the two second arc plates (19) are provided with second movable plates (18). The side of the two second movable plates (18) is provided with a first movable plate (14). There is a snap-fit ​​member between the two first movable plates (14). The front and rear ends of one side of the mounting base (11) and above the two second arc plates (19) are fixedly connected to a first arc plate (16). The two first movable plates (14) are located between the two first arc plates (16).

2. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 1, characterized in that: The engagement connector includes a fixed threaded rod (21), which is engaged into the threaded groove (12) by rotating the support column (7).

3. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 1, characterized in that: The fastener includes a U-shaped snap-fit ​​block (22), which is arranged in a ring array of three. The snap-fit ​​component includes the U-shaped snap-fit ​​block (22), which is sleeved on the outside of the U-shaped snap-fit ​​block (22) by a snap-fit ​​plate (13) to strengthen the fixation of the support column (7).

4. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 1, characterized in that: A third movable shaft (20) is rotatably connected between the two second arc-shaped plates (19) and the two second movable plates (18) for flipping the two second movable plates (18).

5. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 1, characterized in that: A second movable shaft (17) is rotatably connected between the two first arc-shaped plates (16) and the two first movable plates (14) for flipping the two first movable plates (14).

6. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 3, characterized in that: A first movable shaft (15) is rotatably connected between the snap-fit ​​plate (13) and the two first movable plates (14) for flipping the snap-fit ​​plate (13) and is sleeved on the outside of the U-shaped snap-fit ​​block (22).

7. The low-temperature tensile testing machine for vacuum liquid nitrogen heat-insulating tape according to claim 1, characterized in that: Both second movable plates (18) and two first movable plates (14) are rotatably connected by short shafts. The flipping of the two first movable plates (14) drives the flipping of the two second movable plates (18) to improve the fixation between the support column (7) and the mounting block (6).

Images