High-temperature-resistant INS film and performance testing device thereof

Abstract

The invention discloses a high-temperature-resistant INS film and a performance testing device thereof, and relates to the technical field of INS film performance tests.The high-temperature-resistant INS film comprises a workbench, a positioning assembly, a first sealing assembly, a second sealing assembly and a driving assembly.The positioning assembly is fixedly connected to the top of the workbench and comprises two fixing frames; and a fixing ring is fixedly connected between the two fixing frames. According to the invention, through multiple cooperative operation of the positioning assembly, the first sealing assembly, the second sealing assembly and the driving assembly, complete coverage air permeability detection of the membrane can be completed, small-area independent detection is carried out during air permeability detection, the defect position of the membrane can be conveniently judged, and meanwhile, through the arrangement of small-area independent detection, the detection efficiency is improved. And in the detection process, the detection position of the membrane is not blocked by clamping, so that the full air permeability detection of the membrane without dead angles can be realized, and the accuracy of the detection result of the device is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of INS film performance testing, and particularly to a high-temperature resistant INS film and its performance testing device. Background Art

[0002] The high-temperature resistant INS film is a film body material with excellent heat resistance. It can maintain stable physical and chemical properties in a relatively high-temperature environment, is not easily deformed, faded or damaged, and is commonly used for surface decoration and protection of products with high-temperature requirements. After the production of the high-temperature resistant INS film, various performance tests need to be carried out on it.

[0003] In the prior art, when testing the air permeability of a film, the traditional detection method is to clamp the film and divide it into two separate closed spaces above and below, and judge the air permeability by using the air pressure change in the closed spaces. However, when clamping the film, there will be contact positions between the surface of the film and the clamping parts, and these clamping positions are completely blocked during the detection process, resulting in the inability to comprehensively detect the performance of the film surface and affecting the accuracy of the product performance detection results.

[0004] Therefore, a high-temperature resistant INS film and its performance testing device are proposed to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-temperature resistant INS film and its performance testing device to solve the problem that when clamping the film as mentioned in the above background art, there will be contact positions between the surface of the film and the clamping parts, and these clamping positions are completely blocked during the detection process, resulting in the inability to comprehensively detect the performance of the film surface and affecting the accuracy of the product performance detection results.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A performance testing device for a high-temperature resistant INS film, including a workbench, a positioning component, a first closing component, a second closing component, and a driving component. The positioning component is fixedly connected to the top of the workbench. The positioning component includes two fixing frames, and a fixing ring is fixedly connected between the two fixing frames. A film is arranged inside the fixing ring. The first closing component is rotatably connected to the top of the workbench. The first closing component includes a support shaft, a first support plate is fixedly connected to the upper end surface of the support shaft, a bottom sealing plate is fixedly connected to the top of the first support plate, and a bottom support block is fixedly connected to the top of the bottom sealing plate. The second closing component is fixedly connected to the top of one of the fixing frames. The second closing component includes an electric telescopic rod, and a displacement plate is fixedly connected to the upper end surface of the electric telescopic rod. The driving component is fixedly connected to the top of the workbench. The driving component includes a driving frame.

[0007] Further, an inner ring groove is provided at a position near the bottom of the inner surface of the fixed ring. An airbag is arranged inside the inner ring groove. A trachea is fixedly connected to the outer surface of the fixed ring. The trachea penetrates through the fixed ring and is fixedly connected to the airbag. A first air pump is fixedly connected to the end face of the trachea. The first air pump is fixedly connected to the top of the workbench.

[0008] Further, a supporting plate is fixedly connected to the top of the bottom supporting block. The supporting plate is located inside the fixed ring. The outer surface of the supporting plate is attached to the inner surface of the fixed ring. The bottom of the supporting plate is flush with the bottom of the fixed ring. A notch is provided at the top of the supporting plate. The notch is the same shape as the bottom supporting block.

[0009] Further, first side plates are symmetrically and fixedly connected to the bottom of the bottom sealing plate. A pair of photoelectric sensors are fixedly connected to the tops of the two first side plates. The distance between the two first side plates is greater than the width of the fixed frame. A first synchronous pulley is fixedly connected to the outer surface of the support shaft. A first synchronous belt is sleeved on the outer surface of the first synchronous pulley.

[0010] Further, a pressure sensor is fixedly connected to the bottom of the bottom sealing plate. A first pressure relief valve is fixedly connected to the bottom of the bottom sealing plate. Both the pressure sensor and the first pressure relief valve are in communication with the bottom supporting block.

[0011] Further, a rotating rod is rotatably connected to the bottom of the displacement plate. A second supporting plate is fixedly connected to the lower end face of the rotating rod. A top sealing plate is fixedly connected to the bottom of the second supporting plate. A top supporting block is fixedly connected to the bottom of the top sealing plate. The outer surfaces of the top sealing plate and the top supporting block near the fixed ring are arc-shaped. The outer surfaces of the top sealing plate and the top supporting block are both attached to the inner surface of the fixed ring. A rubber strip is arranged between the outer surfaces of the top sealing plate and the top supporting block.

[0012] Further, a second air pump is fixedly connected to the top of the top sealing plate. An input pipe is fixedly connected to the output end of the second air pump. The end face of the input pipe is fixedly connected to the top of the top sealing plate. A second pressure relief valve is fixedly connected to the top of the top sealing plate. Both the input pipe and the second pressure relief valve are in communication with the top supporting block.

[0013] Further, a socket is fixedly connected to the outer surface of the rotating rod. A plug is inserted into the outer surface of the socket. A second synchronous pulley is fixedly connected to the outer surface of the plug. A second synchronous belt is sleeved on the outer surface of the second synchronous pulley. Second side plates are symmetrically and fixedly connected to the top of the top sealing plate. Receivers are fixedly connected to the bottoms of the two second side plates. The second side plates are in a matching position with the first side plates. The receivers and the pair of photoelectric sensors are provided in a matching manner.

[0014] Further, a motor is fixedly connected to the top of the driving frame. The output end of the motor penetrates through the driving frame and extends to the lower side. The output end of the motor is fixedly connected to a rotating shaft. The lower end surface of the rotating shaft is fixedly connected to the top of the workbench. A third pulley is fixedly connected to the outer surface of the rotating shaft. The third pulley is sleeved inside the first synchronous belt. A fourth pulley is fixedly connected to the outer surface of the rotating shaft near the upper side of the third pulley. The fourth pulley is sleeved inside the second synchronous belt.

[0015] Further, a high-temperature resistant INS film. The performance testing device for the high-temperature resistant INS film is used to test the air permeability performance of the high-temperature resistant INS film.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, when testing the performance of the high-temperature resistant INS film, the film is placed inside the fixing ring. Through the arrangement of the supporting plate, the bottom of the film can be supported. After completing a single air permeability test, start the motor to drive the bottom sealing plate and the bottom supporting block to rotate. At this time, the bottom sealing plate, the bottom supporting block, the supporting plate, the top sealing plate and the top supporting block rotate synchronously, so that the corresponding notch positions of the film change. After completing the position adjustment work, start the electric telescopic rod to contract and drive the displacement plate to move down to the detection state. At this time, the air permeability of other positions of the film can be detected without obstruction. Through the multiple coordinated operations of the positioning component, the first sealing component, the second sealing component and the driving component, the air permeability detection of the film can be fully covered. When performing the air permeability detection, it is a small-area single detection, which is convenient to judge the defective position of the film. At the same time, through the setting of small-area single detection, there is no clamping obstruction at the detection position of the film during the detection process, and the film can be detected for air permeability without dead angles, effectively improving the accuracy of the detection result of the device.

[0018] 2. In the present invention, after the film is placed, the first air pump can be operated to inflate the airbag through the connection of the air pipe. After the airbag is inflated, it will expand in the inner ring groove. At this time, the expansion of the airbag can tightly adhere to the outer wall position of the film, so that the outer wall of the film is covered and contacted for positioning. In the subsequent air permeability test, the uniform friction force generated by the airbag on the outer wall of the film makes the placement state of the film relatively stable during the detection process, avoiding the deformation of the film and affecting the detection result, and effectively improving the accuracy of the detection result.

[0019] 3. In the present invention, during the detection process, through the combined use of the first side plate and the second side plate, the upper and lower opposed sensors and receivers can always maintain a vertically corresponding position. By providing two sets of first side plates and second side plates, it is possible to avoid being blocked by the fixing frame during rotation, ensuring that there is always a set of opposed sensors and receivers in the corresponding working position. If there is a deviation in the positions of the bottom support block and the top support block, the opposed sensors cannot perform normal opposed reception with the receivers. At this time, when the opposed sensors receive an abnormal state, they can emit a signal to remind, avoiding the deviation of the structure from affecting the accuracy of the detection result, thereby achieving the purpose of improving the accuracy of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of a high-temperature resistant INS film and its performance testing device of the present invention;

[0021] Figure 2 is an exploded view of the structure of a high-temperature resistant INS film and its performance testing device of the present invention;

[0022] Figure 3 is a schematic structural view of the positioning component of a high-temperature resistant INS film and its performance testing device of the present invention;

[0023] Figure 4 is a schematic structural view of the first sealing component of a high-temperature resistant INS film and its performance testing device of the present invention;

[0024] Figure 5 is another perspective view of the first sealing component of a high-temperature resistant INS film and its performance testing device of the present invention;

[0025] Figure 6 is a schematic structural view of the second sealing component of a high-temperature resistant INS film and its performance testing device of the present invention;

[0026] Figure 7 is a schematic structural view of the driving component of a high-temperature resistant INS film and its performance testing device of the present invention;

[0027] Figure 8 is a schematic view of the film position of a high-temperature resistant INS film and its performance testing device of the present invention.

[0028] In the figure: 1, workbench; 2, positioning component; 201, fixing bracket; 202, fixing ring; 203, inner ring groove; 204, diaphragm; 205, airbag; 206, air pipe; 207, first air pump; 3, first sealing component; 301, support shaft; 302, first support plate; 303, bottom sealing plate; 304, bottom support block; 305, first side plate; 306, opposed sensors; 307, supporting plate; 308, notch; 309, first synchronous pulley; 310, first synchronous belt; 311, air pressure sensor; 312, first pressure relief valve; 4, second sealing component; 401, electric telescopic rod; 402, displacement plate; 403, rotating rod; 404, second support plate; 405, top sealing plate; 406, top support block; 407, rubber strip; 408, second side plate; 409, receiver; 410, second pressure relief valve; 411, second air pump; 412, input pipe; 413, socket; 414, plug; 415, second synchronous pulley; 416, second synchronous belt; 5, driving component; 501, driving frame; 502, motor; 503, rotating shaft; 504, third belt pulley; 505, fourth belt pulley. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1-8As shown in the figure, the present invention provides a technical solution: a performance testing device for a high-temperature resistant INS film, which includes a workbench 1, a positioning component 2, a first sealing component 3, a second sealing component 4, and a driving component 5. The positioning component 2 is fixedly connected to the top of the workbench 1. The positioning component 2 includes two fixing frames 201. A fixing ring 202 is fixedly connected between the two fixing frames 201. A diaphragm 204 is arranged inside the fixing ring 202. The first sealing component 3 is rotatably connected to the top of the workbench 1. The first sealing component 3 includes a support shaft 301. A first support plate 302 is fixedly connected to the upper end surface of the support shaft 301. A bottom sealing plate 303 is fixedly connected to the top of the first support plate 302. A bottom support block 304 is fixedly connected to the top of the bottom sealing plate 303. The second sealing component 4 is fixedly connected to the top of one of the fixing frames 201. The second sealing component 4 includes an electric telescopic rod 401. A displacement plate 402 is fixedly connected to the upper end surface of the electric telescopic rod 401.The driving component 5 is fixedly connected to the top of the workbench 1. The driving component 5 includes a driving frame 501. An inner ring groove 203 is formed at a position near the bottom of the inner surface of the fixed ring 202. An airbag 205 is arranged inside the inner ring groove 203. A trachea 206 is fixedly connected to the outer surface of the fixed ring 202. The trachea 206 penetrates through the fixed ring 202 and is fixedly connected to the airbag 205. A first air pump 207 is fixedly connected to the end face of the trachea 206. The first air pump 207 is fixedly connected to the top of the workbench 1. A supporting plate 307 is fixedly connected to the top of the bottom supporting block 304. The supporting plate 307 is located inside the fixed ring 202. The outer surface of the supporting plate 307 is in contact with the inner surface of the fixed ring 202. The bottom of the supporting plate 307 is flush with the bottom of the fixed ring 202. A notch 308 is formed at the top of the supporting plate 307. The notch 308 has the same shape as the bottom supporting block 304. A first synchronous pulley 309 is fixedly connected to the outer surface of the supporting shaft 301. A first synchronous belt 310 is sleeved on the outer surface of the first synchronous pulley 309. A pressure sensor 311 is fixedly connected to the bottom of the bottom sealing plate 303. A first pressure relief valve 312 is fixedly connected to the bottom of the bottom sealing plate 303. Both the pressure sensor 311 and the first pressure relief valve 312 are in communication with the bottom supporting block 304. A rotating rod 403 is rotatably connected to the bottom of the displacement plate 402. A second supporting plate 404 is fixedly connected to the lower end face of the rotating rod 403. A top sealing plate 405 is fixedly connected to the bottom of the second supporting plate 404. A top supporting block 406 is fixedly connected to the bottom of the top sealing plate 405. The outer surfaces of the top sealing plate 405 and the top supporting block 406 on the side close to the fixed ring 202 are arc-shaped. The outer surfaces of the top sealing plate 405 and the top supporting block 406 are both in contact with the inner surface of the fixed ring 202. A rubber strip 407 is arranged between the outer surfaces of the top sealing plate 405 and the top supporting block 406. A second air pump 411 is fixedly connected to the top of the top sealing plate 405. The output end of the second air pump 411 is fixedly connected to an input pipe 412. The end face of the input pipe 412 is fixedly connected to the top of the top sealing plate 405. A second pressure relief valve 410 is fixedly connected to the top of the top sealing plate 405. Both the input pipe 412 and the second pressure relief valve 410 are in communication with the top supporting block 406. A socket 413 is fixedly connected to the outer surface of the rotating rod 403. A plug 414 is inserted into the outer surface of the socket 413. A second synchronous pulley 415 is fixedly connected to the outer surface of the plug 414. A second synchronous belt 416 is sleeved on the outer surface of the second synchronous pulley 415. A motor 502 is fixedly connected to the top of the driving frame 501. The output end of the motor 502 penetrates through the driving frame 501 and extends to the lower side. The output end of the motor 502 is fixedly connected to a rotating shaft 503. The lower end face of the rotating shaft 503 is fixedly connected to the top of the workbench 1. A third belt pulley 504 is fixedly connected to the outer surface of the rotating shaft 503. The third belt pulley 504 is sleeved inside the first synchronous belt 310. A fourth belt pulley 505 is fixedly connected to the outer surface of the rotating shaft 503 at a position above the third belt pulley 504. The fourth belt pulley 505 is sleeved inside the second synchronous belt 416.;

[0031] Steps of the present invention: When performing performance testing on the high-temperature resistant INS film, place the film sheet 204 inside the fixed ring 202. The provision of the supporting plate 307 can provide support for the bottom of the film sheet 204. Start the electric telescopic rod 401 to contract. After the electric telescopic rod 401 starts to contract, it can drive the displacement plate 402 to move downward. When the displacement plate 402 moves downward, it can drive the top sealing plate 405 and the top supporting block 406 to move downward through the connection of the rotating rod 403 and the second supporting plate 404. At this time, the top sealing plate 405 and the top supporting block 406 can move downward to the inner position of the fixed ring 202, and the top supporting block 406 will press on the upper position of the film sheet 204. At this time, through the provision of the rubber strip 407, the top sealing plate 405 and the top supporting block 406 are in a state of being in close contact and sealed with the inner wall of the fixed ring 202. At this time, the top supporting block 406 moves downward in place, that is, the clamping and positioning of the film sheet 204 is completed. Refer to Figure 8As shown in the state in , the diaphragm 204 is placed above the supporting plate 307. The top supporting block 406 and the bottom supporting block 304 are both in the shape of the corresponding notch 308, and the top supporting block 406 and the bottom supporting block 304 both correspond to the outer edge position of the notch 308, so that the position corresponding to the notch 308 of the diaphragm 204 is completely empty. Start the second air pump 411 to run. After the second air pump 411 runs, it can inflate the closed space where the diaphragm 204 is located through the connection of the input pipe 412. At this time, since the gas is input from the position of the top supporting block 406, the upper layer of the closed space will input gas. By using the air pressure sensor 311 at the lower position, the air pressure of the lower layer of the closed space can be monitored in real time. When the inflation volume of the second air pump 411 is constant, by recording the readings of the air pressure sensor 311, the air permeability data of the diaphragm 204 can be obtained. At this time, a partial position non-obstructed air permeability test of the diaphragm 204 is completed. Next, adjust the test position. After completing a single air permeability test, use the first pressure relief valve 312 and the second pressure relief valve 410 to relieve the pressure and exhaust the gas in the test closed space. After completing the pressure relief and exhaust, start the electric telescopic rod 401 to extend and drive the displacement plate 402 to move up and reset. Then start the motor 502 to run and drive the bottom sealing plate 303 and the bottom supporting block 304 to rotate accordingly. At this time, the bottom sealing plate 303, the bottom supporting block 304, the supporting plate 307, the top sealing plate 405 and the top supporting block 406 rotate synchronously, so that the position corresponding to the notch 308 of the diaphragm 204 changes. After completing the position adjustment work, start the electric telescopic rod 401 to contract and drive the displacement plate 402 to move down to the test state. At this time, the air permeability of other positions of the diaphragm 204 can be tested without obstruction. Through the multiple coordinated operations of the positioning component 2, the first closing component 3, the second closing component 4 and the driving component 5, the air permeability test of the entire coverage of the diaphragm 204 can be completed. When performing the air permeability test, it is a small-area single test, which is convenient for judging the defective position of the diaphragm 204. At the same time, through the setting of small-area single test, there is no clamping obstruction at the test position of the diaphragm 204 during the test process, and the diaphragm 204 can be tested for air permeability without dead angles, effectively improving the accuracy of the test results of the device.

[0032] Embodiment 2: As Figure 3 shown, an inner ring groove 203 is opened at a position near the bottom of the inner surface of the fixing ring 202. An airbag 205 is arranged inside the inner ring groove 203. A trachea 206 is fixedly connected to the outer surface of the fixing ring 202. The trachea 206 penetrates through the fixing ring 202 and is fixedly connected to the airbag 205. A first air pump 207 is fixedly connected to the end face of the trachea 206. The first air pump 207 is fixedly connected to the top of the workbench 1.

[0033] Steps of using the present invention: After the diaphragm 204 is placed, the first air pump 207 can be operated to inflate the airbag 205 through the connection of the air pipe 206. After the airbag 205 is inflated, it will expand in the inner ring groove 203. At this time, the expansion of the airbag 205 can be used to closely adhere to the outer wall position of the diaphragm 204, so that the outer wall of the diaphragm 204 is covered and contacted for positioning by the airbag 205. In the subsequent air permeability test, the uniform friction force generated by the airbag 205 on the outer wall of the diaphragm 204 makes the placement state of the diaphragm 204 relatively stable during the detection process, avoiding the deformation of the diaphragm 204 from affecting the detection result, and effectively improving the accuracy of the detection result.

[0034] Embodiment 3: As Figures 4-6 shown, symmetrically fixed to the bottom of the bottom sealing plate 303 are first side plates 305. Fixed to the top of both first side plates 305 are opposed sensors 306. The distance between the two first side plates 305 is greater than the width of the fixing frame 201. Symmetrically fixed to the top of the top sealing plate 405 are second side plates 408. Fixed to the bottom of both second side plates 408 are receivers 409. The second side plates 408 are in a matching position with the first side plates 305, and the receivers 409 and the opposed sensors 306 are provided in a matching manner.

[0035] Steps of using the present invention: During the detection process, when the motor 502 is operated to adjust the detection positions of the bottom support block 304 and the top support block 406, through the combined use of the first side plates 305 and the second side plates 408, the upper and lower opposed sensors 306 and the receivers 409 can always be kept in a vertically corresponding position. By providing two sets of first side plates 305 and second side plates 408, it can be avoided being blocked by the fixing frame 201 during rotation, ensuring that there is always a set of opposed sensors 306 and receivers 409 in the corresponding working position. When the bottom support block 304 and the top support block 406 are in a relatively stable vertical position, the infrared light emitted by the opposed sensor 306 during operation will accurately irradiate the receiver 409. If there is a deviation in the positions of the bottom support block 304 and the top support block 406, the opposed sensor 306 cannot perform normal opposed reception with the receiver 409. At this time, the opposed sensor 306 receives an abnormal state and can send a signal for reminder, avoiding the deviation of the structure from affecting the accuracy of the detection result, thereby achieving the purpose of improving the accuracy of the device result.

[0036] The effects and working principle achieved by the entire mechanism are as follows: When testing the performance of the high-temperature resistant INS film, through the combined use of the positioning component 2, the first sealing component 3, the second sealing component 4, and the driving component 5, the membrane 204 can be clamped and positioned. Subsequently, the air permeability of the membrane 204 is tested. When starting the performance test work, the electric telescopic rod 401 is in the extended state, that is, the displacement plate 402 is in a higher position. At this time, the top sealing plate 405 and the top supporting block 406 are located above the fixing ring 202. The membrane 204 is placed inside the fixing ring 202, and the edge of the membrane 204 can be placed in a way that fits the inner wall of the fixing ring 202. After the membrane 204 is placed, the setting of the supporting plate 307 can provide support for the bottom of the membrane 204, so that the membrane 204 is completely placed inside the fixing ring 202 to complete the preliminary placement and positioning. At this time, the notch 308 position at the bottom of the membrane 204 is the preliminary detection position. Since the notch 308 position corresponds to a gap, and this gap position corresponds to the lower bottom supporting block 304 and the bottom sealing plate 303, after the membrane 204 is placed, the notch 308 position will be closed by the combined setting of the bottom supporting block 304 and the bottom sealing plate 303. After the placement of the membrane 204 is completed, the electric telescopic rod 401 is started to contract. After the electric telescopic rod 401 starts to contract, it can drive the displacement plate 402 to move downward. When the displacement plate 402 moves downward, it can drive the top sealing plate 405 and the top supporting block 406 to move downward through the connection of the rotating rod 403 and the second supporting plate 404. At this time, the top sealing plate 405 and the top supporting block 406 can move downward to the inner position of the fixing ring 202, and the top supporting block 406 will press on the upper position of the membrane 204. At this time, through the setting of the rubber strip 407, the top sealing plate 405 and the top supporting block 406 are in a state of being in close contact and sealed with the inner wall of the fixing ring 202. At this time, the top supporting block 406 has moved down in place, that is, the clamping and positioning of the membrane 204 is completed. Referring to Figure 8 the state shown in it, the membrane 204 will be placed above the supporting plate 307. Both the top supporting block 406 and the bottom supporting block 304 are in the shape corresponding to the notch 308, and both the top supporting block 406 and the bottom supporting block 304 correspond to the outer edge position of the notch 308, that is, the position of the membrane 204 corresponding to the shape of the notch 308 is completely empty. At this time, the first air pump 207 is started to operate. After the first air pump 207 operates, it can inflate the airbag 205 through the connection of the air pipe 206. After the airbag 205 is inflated, it will expand in the inner ring groove 203. At this time, the expansion of the airbag 205 can be used to closely adhere to the outer wall position of the membrane 204, so that the outer wall of the membrane 204 is covered and contacted for positioning. In the subsequent air permeability test, the uniform friction force generated by the airbag 205 on the outer wall of the membrane 204 is used to make the placement state of the membrane 204 relatively stable during the detection process, avoid deformation of the membrane 204 affecting the detection result, and effectively improve the accuracy of the detection result. At this time, the air permeability detection of the membrane 204 is started. By Figure 8From the middle state, it can be seen that the position of the diaphragm 204 corresponding to the notch 308 is within the enclosed space formed by the bottom support block 304, the bottom sealing plate 303, the top sealing plate 405, and the top support block 406. The middle position of this enclosed space is separated by the diaphragm 204. The stable placement of the diaphragm 204 is supported by contact at positions other than the notch 308. Therefore, the position of the diaphragm 204 inside the notch 308 is completely unobstructed. At this time, start the second air pump 411 to operate. After the second air pump 411 operates, it can inflate the enclosed space where the diaphragm 204 is located through the connection of the input pipe 412. At this time, since the gas is input from the position of the top support block 406, the upper layer of the enclosed space will be input with gas. By using the air pressure sensor 311 at the lower position, the air pressure in the lower layer of the enclosed space can be monitored in real time. When the inflation volume of the second air pump 411 is constant, by recording the readings of the air pressure sensor 311, the air permeability data of the diaphragm 204 can be obtained. At this time, a partial unobstructed air permeability test of the diaphragm 204 is completed. Next, adjust the test position. After completing a single air permeability test, use the first pressure relief valve 312 and the second pressure relief valve 410 to relieve the pressure and exhaust the gas in the test enclosed space. After completing the pressure relief and exhaust, start the electric telescopic rod 401 to extend and drive the displacement plate 402 to move up and reset. Subsequently, start the motor 502 to operate. After the motor 502 operates, it can drive the rotating shaft 503 to rotate accordingly. Through the rotation of the rotating shaft 503, the third belt pulley 504 and the fourth belt pulley 505 can be driven to rotate synchronously. When the third belt pulley 504 rotates, it can drive the support shaft 301 to rotate accordingly through the connection of the first synchronous belt 310 and the first synchronous pulley 309. When the fourth belt pulley 505 rotates, it can drive the rotating rod 403 to rotate synchronously through the connection of the second synchronous belt 416 and the second synchronous pulley 415. Through the setting of connecting the second synchronous pulley 415 by the cooperation of the socket 413 and the plug 414, it can be ensured that when the rotating rod 403 adjusts its position up and down, it still receives the kinetic energy transmission from the second synchronous pulley 415. At this time, by using the drive of the motor 502, the support shaft 301 and the rotating rod 403 can rotate by the same amplitude. When the support shaft 301 rotates, it can drive the bottom sealing plate 303 and the bottom support block 304 to rotate accordingly. Similarly, by using the rotation of the rotating rod 403, the top sealing plate 405 and the top support block 406 can be driven to rotate synchronously. At this time, the bottom sealing plate 303, the bottom support block 304, the support plate 307, the top sealing plate 405, and the top support block 406 rotate synchronously, causing the position of the notch 308 corresponding to the diaphragm 204 to change. After completing the position adjustment work, start the electric telescopic rod 401 to contract and drive the displacement plate 402 to move down to the test state. At this time, the unobstructed air permeability test of other positions of the diaphragm 204 can be carried out. Through the multiple coordinated operations of the positioning component 2, the first closing component 3, the second closing component 4, and the driving component 5, the air permeability test of the entire coverage of the diaphragm 204 can be completed.When performing the air permeability detection, it is a separate detection for a small area, which is convenient for determining the defect position of the diaphragm 204. At the same time, through the setting of the small-area separate detection, there is no clamping occlusion at the detection position of the diaphragm 204 during the detection process. For the diaphragm 204, a comprehensive air permeability detection without dead angles can be achieved, effectively improving the accuracy of the detection result of the device. During the detection process, when using the motor 502 to operate and adjust the detection positions of the bottom support block 304 and the top support block 406, through the coordinated use of the first side plate 305 and the second side plate 408, the upper and lower opposed sensors 306 and the receiver 409 can always be kept in a vertically corresponding position. By setting two groups of the first side plate 305 and the second side plate 408, it can avoid being blocked by the fixing frame 201 during rotation, ensuring that there is always a set of opposed sensors 306 and the receiver 409 in the corresponding working position. When the bottom support block 304 and the top support block 406 are in a relatively stable vertically perpendicular position, the infrared light emitted when the opposed sensor 306 works will accurately irradiate the position of the receiver 409. If there is a deviation in the positions of the bottom support block 304 and the top support block 406, the opposed sensor 306 cannot perform normal opposed reception with the receiver 409. At this time, when the opposed sensor 306 receives an abnormal state, it can send a signal to remind, avoiding the influence of the structural deviation on the accuracy of the detection result, thereby achieving the purpose of improving the accuracy of the device result.,

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A performance testing device for a high temperature resistant INS membrane, comprising a workbench (1), a positioning assembly (2), a first closing assembly (3), a second closing assembly (4) and a driving assembly (5), characterized in that: The positioning assembly (2) is fixedly connected to the top of the workbench (1), and the positioning assembly (2) comprises two fixing frames (201), a fixing ring (202) is fixedly connected between the two fixing frames (201), and a diaphragm (204) is arranged inside the fixing ring (202); The first closing component (3) is rotatably connected to the top of the workbench (1), and the first closing component (3) comprises a supporting shaft (301), the upper end surface of the supporting shaft (301) is fixedly connected to a first supporting plate (302), the top of the first supporting plate (302) is fixedly connected to a bottom sealing plate (303), and the top of the bottom sealing plate (303) is fixedly connected to a bottom supporting block (304); The second closing component (4) is fixedly connected to the top of one of the fixing frames (201), and the second closing component (4) comprises an electric telescopic rod (401), and a displacement plate (402) is fixedly connected to the upper end surface of the electric telescopic rod (401); The driving assembly (5) is fixedly connected to the top of the workbench (1), and the driving assembly (5) comprises a driving frame (501).

2. The performance testing device for the high temperature resistant INS membrane according to claim 1, characterized in that: An inner ring groove (203) is provided on the inner surface of the fixing ring (202) near the bottom, an air bag (205) is arranged inside the inner ring groove (203), an air pipe (206) is fixedly connected to the outer surface of the fixing ring (202), the air pipe (206) passes through the fixing ring (202) and is fixedly connected to the air bag (205), and a first air pump (207) is fixedly connected to the end surface of the air pipe (206), and the first air pump (207) is fixedly connected to the top of the workbench (1).

3. The performance testing device for the high temperature resistant INS membrane according to claim 2, characterized in that: A supporting plate (307) is fixedly connected to the top of the bottom supporting block (304); the supporting plate (307) is located inside the fixing ring (202); the outer surface of the supporting plate (307) is in contact with the inner surface of the fixing ring (202); the bottom of the supporting plate (307) is flush with the bottom of the fixing ring (202); a notch (308) is provided on the top of the supporting plate (307); and the notch (308) is consistent in shape with the bottom supporting block (304).

4. The performance testing device for the high temperature resistant INS membrane according to claim 3, characterized in that: The bottom of the bottom sealing plate (303) is symmetrically fixedly connected to a first side plate (305), the tops of the two first side plates (305) are fixedly connected to a corresponding sensor (306), the spacing between the two first side plates (305) is greater than the width of the fixing frame (201), the outer surface of the support shaft (301) is fixedly connected to a first synchronous wheel (309), and the outer surface of the first synchronous wheel (309) is sleeved with a first synchronous belt (310).

5. The performance testing device for the high temperature resistant INS membrane according to claim 4, characterized in that: The bottom of the bottom sealing plate (303) is fixedly connected to an air pressure sensor (311), the bottom of the bottom sealing plate (303) is fixedly connected to a first pressure relief valve (312), and both the air pressure sensor (311) and the first pressure relief valve (312) are in a communicating state with the bottom supporting block (304).

6. The performance testing device for the high temperature resistant INS membrane according to claim 5, characterized in that: The bottom of the displacement plate (402) is rotatably connected to a rotating rod (403), the lower end surface of the rotating rod (403) is fixedly connected to a second supporting plate (404), the bottom of the second supporting plate (404) is fixedly connected to a top sealing plate (405), the bottom of the top sealing plate (405) is fixedly connected to a top supporting block (406), the outer surfaces of the top sealing plate (405) and the top supporting block (406) close to the fixed ring (202) are arc-shaped, the outer surfaces of the top sealing plate (405) and the top supporting block (406) are both in contact with the inner surface of the fixed ring (202), and a rubber strip (407) is provided between the outer surfaces of the top sealing plate (405) and the top supporting block (406).

7. The performance testing device for the high temperature resistant INS membrane according to claim 6, characterized in that: A second air pump (411) is fixedly connected to the top of the top sealing plate (405); an input pipe (412) is fixedly connected to the output end of the second air pump (411); an end face of the input pipe (412) is fixedly connected to the top of the top sealing plate (405); a second pressure relief valve (410) is fixedly connected to the top of the top sealing plate (405); and both the input pipe (412) and the second pressure relief valve (410) are in a communicating state with the top supporting block (406).

8. The performance testing device for high temperature resistant INS membrane according to claim 6, characterized in that: The outer surface of the rotating rod (403) is fixedly connected with a socket (413), the outer surface of the socket (413) is inserted with a plug block (414), the outer surface of the plug block (414) is fixedly connected with a second synchronous wheel (415), the outer surface of the second synchronous wheel (415) is sleeved with a second synchronous belt (416), the top of the top sealing plate (405) is symmetrically fixedly connected with a second side plate (408), the bottom of the two second side plates (408) are fixedly connected with a receiver (409), the second side plate (408) is matched with the first side plate (305) in position, and the receiver (409) is matched with the corresponding sensor (306).

9. The performance testing device for the high temperature resistant INS membrane according to claim 7, characterized in that: The top of the driving frame (501) is fixedly connected to a motor (502), the output end of the motor (502) passes through the driving frame (501) and extends to the lower side, the output end of the motor (502) is fixedly connected to a rotating shaft (503), the lower end surface of the rotating shaft (503) is fixedly connected to the top of the workbench (1), the outer surface of the rotating shaft (503) is fixedly connected to a third pulley (504), the third pulley (504) is sleeved on the inner side of the first synchronous belt (310), the outer surface of the rotating shaft (503) is fixedly connected to a fourth pulley (505) near the upper position of the third pulley (504), the fourth pulley (505) is sleeved on the inner side of the second synchronous belt (416).

10. The high temperature resistant INS membrane according to claim 1, characterized in that: The performance testing device for the high temperature resistant INS membrane is used for performing a performance test on the air permeability of the high temperature resistant INS membrane.

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