Test mechanism for T-shaped membrane material

Abstract

The utility model relates to a T-shaped membrane material testing mechanism, comprising: a frame, the middle of which forms an accommodating space; the upper seat body is positioned in the accommodating space; the upper seat body comprises a stretching device and an upper clamp, one end of the stretching device is connected with the rack, the other end of the stretching device is connected with the upper clamp, and the stretching device is used for driving the upper clamp to vertically move; the upper clamp is used for clamping a first end of a T-shaped membrane material; the lower seat body is positioned in the accommodating space and is positioned below the upper seat body; the lower seat body comprises a base and a lower clamp; the base is mounted on the rack; the lower clamp comprises a mounting plate and two chucks, the mounting plate is mounted on the base, the two chucks are movably mounted on the mounting plate in the vertical direction, and the two chucks are used for clamping the second end and the third end of the T-shaped membrane material respectively. According to the utility model, different stress angles of the T-shaped membrane material can be simulated, so that the final detection result is more accurate.

Description

Technical Field

[0001] This application relates to the technical field of film material testing, and particularly to a testing mechanism for T-shaped film materials. Background Art

[0002] An air film structure is a structural system that uses a special film material as the outer shell and is equipped with a set of intelligent electromechanical equipment to provide positive pressure of air inside the air film to support the main building body. During the preparation of the air film, a large number of film materials need to be welded to form a complete air film structure. When welding the film materials, it is often necessary to weld the edge of one film material to the middle of another film material to form a T-shaped film material structure. The welding quality of the T-shaped film material is an important factor affecting the quality of the air film. Therefore, tensile tests need to be carried out to measure the tensile strength of the T-shaped film material.

[0003] Traditional tensile test equipment usually only includes two upper and lower clamps, which can only clamp two film materials respectively for tensioning. The testing process does not conform to the stress situation in the actual working conditions of the T-shaped film material and cannot more accurately test the welding quality of the T-shaped film material. Utility Model Content

[0004] Based on this, it is necessary to provide a testing mechanism for T-shaped film materials, and its specific technical solution is as follows.

[0005] A testing mechanism for T-shaped film materials includes:

[0006] A frame with an accommodation space formed in the middle;

[0007] An upper seat body located within the accommodation space; the upper seat body includes a stretching device and an upper clamp. One end of the stretching device is connected to the frame, and the other end is connected to the upper clamp for driving the upper clamp to move vertically; the upper clamp is used to clamp the first end of the T-shaped film material.

[0008] A lower seat body located within the accommodation space and below the upper seat body; the lower seat body includes a base and a lower clamp; the base is installed on the frame; the lower clamp includes a mounting plate and two clamping heads. The mounting plate is installed on the base, and the two clamping heads are respectively installed on the mounting plate so as to move vertically, and the two clamping heads are respectively used to clamp the second end and the third end of the T-shaped film material.

[0009] Further, the clamping head includes an upper clamping plate and a lower clamping plate. One end of the T-shaped film material passes through between the upper clamping plate and the lower clamping plate, and after the upper clamping plate and the lower clamping plate are bolted together, the T-shaped film material is locked.

[0010] Further, the lower clamping plate is rotatably connected with an adjusting rod, the adjusting rod passes through the mounting plate and is threadedly connected with the mounting plate; at least two guiding rods are also installed on the lower clamping plate, and the guiding rods pass through the mounting plate so as to move vertically.

[0011] Further, a threaded section that is in threaded fit with the mounting plate is provided on the adjusting rod.

[0012] Further, a rotating handle is connected to one end of the adjusting rod away from the lower clamping plate.

[0013] Further, a blind hole with an open bottom and a limiting hole with an open side are provided on the lower clamping plate, and the limiting hole communicates with the blind hole; one end of the adjusting rod is inserted into the blind hole, and an annular limiting groove is provided at the end of the adjusting rod inserted into the blind hole; a pin is inserted into the limiting hole, and the pin is inserted into the annular limiting groove to limit the vertical movement of the adjusting rod.

[0014] Further, when the pin is inserted into the annular limiting groove, it does not limit the rotation of the adjusting rod about its own axis.

[0015] Further, during testing, the heights of the two chucks are adjusted to be staggered.

[0016] Beneficial effects: The testing mechanism for a T-shaped film material provided by the present utility model clamps three ends of the T-shaped film material respectively through two chucks on the upper fixture and the lower fixture, and by adjusting the height positions of the two chucks respectively, different stress angles can be formed for the T-shaped film material; generally speaking, during the actual use of the air film, due to different environmental factors and different positions of the T-shaped film material in the air film, the actual stress angles will also change; the present utility model can simulate different stress angles of the T-shaped film material, making the final detection result more accurate. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 One of the schematic diagrams of the testing mechanism;

[0019] Figure 2 Another schematic diagram of the testing mechanism;

[0020] Figure 3 Schematic diagram of the structure of the lower seat body;

[0021] Figure 4 Side view of the lower seat body;

[0022] Figure 5 Along Figure 4 Partial cross-sectional view taken along A-A in

[0023] Description of reference numerals: 1. First film material; 2. Second film material; 3. Frame; 4. Upper seat body; 5. Lower seat body;

[0024] 41. Tensile device; 42. Upper fixture;

[0025] 51. Base; 52. Lower fixture; 53. Mounting plate; 54. Chuck;

[0026] 541. Upper clamping plate; 542. Lower clamping plate; 543. Adjusting rod; 544. Guide rod; 545. Rotating handle; 546. Blind hole; 547. Limit hole; 548. Annular limit groove; 549. Bolt mounting hole. Detailed implementation manners

[0027] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following describes the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application 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 to the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0033] Embodiment

[0034] Refer to Figure 1 As shown, this embodiment provides a test mechanism for a T-shaped film material to test the quality of the T-shaped film material after welding. Specifically, the T-shaped film material includes a first film material 1 and a second film material 2, and one edge of the first film material 1 is welded to the middle position of the second film material 2. During the actual use of the air film, with the changes in the environment where the air film is located, such as environmental factors like wind direction and wind force, and the usage position of the T-shaped film material on the air film, usually the angle between the first film material 1 and the second film material 2 in the T-shaped film material will be affected. Therefore, this embodiment provides a test mechanism that can clamp the three ends of the T-shaped film material and simulate different angles between the film materials.

[0035] Specifically, continue to refer to Figure 1As shown, the test mechanism includes a frame 3, an upper seat body 4, and a lower seat body 5. The frame 3 is composed of multiple rod structures, and an accommodation space is formed in the middle of the frame 3 for accommodating the upper seat body 4 and the lower seat body 5. The upper seat body 4 includes a stretching device 41 and an upper fixture 42. One end of the stretching device 41 is connected to the frame 3, and the other end is connected to the upper fixture 42 for driving the upper fixture 42 to move vertically. In this embodiment, the stretching device 41 can adopt devices such as an oil cylinder or an electric telescopic rod. The upper fixture 42 is used to clamp one end of the first membrane material 1 in the T-shaped membrane material. Specifically, a clamping groove is provided in the middle of the upper fixture 42, and the membrane material is locked by bolts after passing through the clamping groove. In other embodiments, the upper fixture 42 can also adopt a splint structure.

[0036] Specifically, the lower seat body 5 is located below the upper seat body 4. Referring to Figure 3 As shown, the lower seat body 5 includes a base 51 and a lower fixture 52; the base 51 is installed on the frame 3, and the lower fixture 52 includes a mounting plate 53 and two clamping heads 54. The mounting plate 53 is installed on the base 51, and the two clamping heads 54 are respectively installed on the mounting plate 53 so as to move vertically, and the two clamping heads 54 are respectively used to clamp both ends of the second membrane material 2 in the T-shaped membrane material. By adjusting the height positions of the two clamping heads 54, different stress angles can be formed for the T-shaped membrane material, so as to simulate the actual working conditions and make the detection of the welding quality of the T-shaped membrane material more accurate. The state after adjusting the stress angle of the membrane material can be referred to Figure 2 As shown.

[0037] The test mechanism for a T-shaped membrane material provided in this embodiment clamps the three ends of the T-shaped membrane material respectively by the upper fixture 42 and the two clamping heads 54 on the lower fixture 52, and by adjusting the height positions of the two clamping heads 54 respectively, different stress angles can be formed for the T-shaped membrane material; generally speaking, in the actual use process of the air film, due to different environmental factors and different positions of the T-shaped membrane material in the air film, the actual stress angles will also change; the utility model can simulate different stress angles of the T-shaped membrane material, making the final detection result more accurate.

[0038] Specifically, the clamping head 54 includes an upper clamping plate 541 and a lower clamping plate 542; one end of the T-shaped membrane material passes between the upper clamping plate 541 and the lower clamping plate 542, and the T-shaped membrane material is locked after the upper clamping plate 541 and the lower clamping plate 542 are bolted. A through hole for accommodating the T-bolt is also provided on the membrane material, and the membrane material is locked by bolts passing through the upper clamping plate 541, the membrane material, and the lower clamping plate 542. Although the bolts are not shown in Figure 3 the bolt mounting holes 549 are shown, and those skilled in the art should understand how to lock with bolts.

[0039] Specifically, the lower clamping plate 542 is rotatably connected with an adjusting rod 543, and the adjusting rod 543 passes through the mounting plate 53 and is threadedly connected with the mounting plate 53; at least two guiding rods 544 are also installed on the lower clamping plate 542, and the guiding rods 544 movably pass through the mounting plate 53 in the vertical direction. When it is necessary to adjust the height of the chuck 54, by rotating the adjusting rod 543, the adjusting rod 543 moves relative to the mounting plate 53. Under the guiding and restricting action of the guiding rods 544, the adjusting rod 543 can only move in the vertical direction, thereby driving the chuck 54 to move and change its height.

[0040] Specifically, a threaded section cooperating with the mounting plate 53 is provided on the adjusting rod 543.

[0041] Specifically, a rotating handle 545 is connected to one end of the adjusting rod 543 away from the lower clamping plate 542, which is convenient for the operator to rotate the adjusting rod 543 to adjust the angle of the film material.

[0042] Specifically, referring to Figure 5 As shown, a blind hole 546 with an open bottom and a limiting hole 547 with an open side are provided on the lower clamping plate 542, and the limiting hole 547 communicates with the blind hole 546; one end of the adjusting rod 543 is inserted into the blind hole 546, and an annular limiting groove 548 is provided at the end of the adjusting rod 543 inserted into the blind hole 546; a plug pin is inserted into the limiting hole 547, and the plug pin is inserted into the annular limiting groove 548 to limit the vertical movement of the adjusting rod 543. The vertical relative movement between the adjusting rod 543 and the lower clamping plate 542 can be restricted by the plug pin, realizing the assembly of the adjusting rod 543 and the lower clamping plate 542. At the same time, the plug pin does not affect the rotation of the adjusting rod 543, ensuring that rotating the adjusting rod 543 can adjust the height of the chuck 54. Correspondingly, the guiding rod 544 and the lower clamping plate 542 can also be assembled by adopting the above plug pin structure. In order to ensure the stability of the plug pin, the plug pin can also be connected to the limiting hole 547 by means of a thread. Although the plug pin is not shown in the figure, those skilled in the art should clearly know how to insert the plug pin into the limiting hole 547.

[0043] Specifically, during the test, the heights of the two chucks 54 are adjusted to be staggered, so that the T-shaped film material forms different stress angles. It should be noted that the two chucks 54 can also be kept at the same height for testing.

[0044] Usage process: Clamp one end of the first film material 1 by using the upper fixture 42, clamp both ends of the second film material 2 by using the two chucks 54 on the lower fixture 52 respectively, then adjust the heights of the two chucks 54 so that the T-shaped film material forms the required angle, and start the stretching device 41 to drive the upper fixture 42 to move upward, thereby performing a tensile test.

[0045] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0046] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A testing mechanism for a T-shaped film material, characterized in that Comprising: A frame, with an accommodation space formed in the middle; An upper seat body, located within the accommodation space; the upper seat body includes a stretching device and an upper clamp, one end of the stretching device is connected to the frame, and the other end is connected to the upper clamp, for driving the vertical movement of the upper clamp; the upper clamp is used for clamping the first end of the T-shaped film material; A lower seat body, located within the accommodation space and below the upper seat body; the lower seat body includes a base and a lower clamp; the base is installed on the frame; the lower clamp includes a mounting plate and two clamping heads, the mounting plate is installed on the base, the two clamping heads are respectively installed on the mounting plate so as to move vertically, and the two clamping heads are respectively used for clamping the second end and the third end of the T-shaped film material.

2. The testing mechanism of a T-shaped film material according to claim 1, characterized in that, The clamping head includes an upper clamping plate and a lower clamping plate, one end of the T-shaped film material passes between the upper clamping plate and the lower clamping plate, and the T-shaped film material is locked after the upper clamping plate and the lower clamping plate are bolted.

3. The testing mechanism for a T-shaped film material according to claim 2, characterized in that, The lower clamping plate is rotatably connected with an adjusting rod, the adjusting rod passes through the mounting plate and is threadedly connected with the mounting plate; at least two guide rods are further installed on the lower clamping plate, and the guide rods pass through the mounting plate and move vertically.

4. The testing mechanism for a T-shaped film material according to claim 3, characterized in that, The adjusting rod is provided with a threaded section that is threadedly matched with the mounting plate.

5. The testing mechanism of a T-shaped film material according to claim 3, characterized in that, One end of the adjusting rod away from the lower clamping plate is connected with a rotating handle.

6. The testing mechanism for a T-shaped film material according to claim 3, characterized in that, The lower clamping plate is provided with a blind hole with an open bottom and a limiting hole with an open side, the limiting hole communicates with the blind hole; one end of the adjusting rod is inserted into the blind hole, and an annular limiting groove is provided at the end of the adjusting rod inserted into the blind hole; a pin is inserted into the limiting hole, and the pin is inserted into the annular limiting groove to limit the vertical movement of the adjusting rod.

7. The testing mechanism for a T-shaped film material according to claim 6, characterized in that, When the pin is inserted into the annular limiting groove, it does not limit the rotation of the adjusting rod around its own axis.

8. The testing mechanism of a T-shaped film material according to claim 1, characterized in that, During testing, the heights of the two clamping heads are adjusted to be staggered.

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