Continuous aluminum film balloon air tightness detection device and method for dynamic sealing detection

Abstract

The invention relates to the technical field of aluminum film balloon detection, in particular to a continuous aluminum film balloon airtightness detection device and method for dynamic sealing detection, and the device comprises a box body in which clear water is stored and a support disposed in the box body. An inflation head for inflating the aluminum film balloon and a sealing unit for sealing the joint of the inflation head and the aluminum film balloon after the inflation head is connected with the aluminum film balloon are arranged on the support, two first extrusion plates are arranged above the support, and the two first extrusion plates are symmetrically arranged relative to the inflation head; the aluminum film balloon connected with the inflation head is located between the two first extrusion plates, and when the sealing performance of the joint is tested, the two first extrusion plates extrude the uninflated aluminum film balloon. According to the invention, the accuracy of test results is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum film balloon detection, and in particular to a continuous aluminum film balloon air tightness detection device and method for dynamic sealing detection. Background Art

[0002] There are many types of balloons, among which aluminum film balloons are usually larger in size. However, when conducting airtightness testing, the testing principles of all balloons are basically the same, that is, after the balloons are produced, they are inflated to observe whether there are any leaks. If the airtightness of the balloon is not good, it will affect subsequent use. Balloons with poor airtightness need to be picked out before leaving the factory.

[0003] Chinese patent publication number CN211877331U discloses a balloon air tightness detection device, comprising a base, a pillar fixedly connected to the bottom of the base, a display device fixedly connected to the top of the base, a sealed box fixedly connected to the top of the base, a pressure monitor fixedly connected to the inside of the sealed box, an air pump fixedly connected to the top of the sealed box, a box body fixedly connected to the inside of the box body, a suction cup fixedly connected to the right side of the sleeve, a connecting rod movably connected to the inside of the box body, a first electric push rod fixedly connected to the top of the box body, a pad fixedly connected to the inside of the box body, a motor fixedly connected to the top of the pad, an output shaft of the motor fixedly connected to a rotating shaft, an outer wall of the rotating shaft fixedly connected to a driving gear, a second electric push rod fixedly connected to the top of the pad, a groove body movably connected to the outer wall of the rotating shaft, and a turntable movably connected to the inside of the box body.

[0004] The above scheme is mainly aimed at spherical balloons made of rubber, while the aluminum film balloon is a flat structure before inflation, and the position of the inflation port is different from that of the spherical balloon made of rubber. When the aluminum film balloon is inflated, the inflation port of the aluminum film balloon is located at the end of one of the surfaces, and the inflation port has the ability to seal itself. When inflating, the inflation head needs to be set at the inflation port, and the surface of the aluminum film balloon under the inflation port is pressed down, so that the inflation port is cracked and then the inflation port is inserted. In the existing detection process, the inflation head is mostly inserted into the inflation port by manpower, and the inflation port is sealed by hand pressure during inflation. In this way, it is impossible to ensure that the inflation port is completely sealed, which leads to deviations in the final detection results. In addition, the aluminum film balloon itself does not have elasticity. Compared with the elastic rubber balloon, there will be no obvious leakage during the inflation process even if there is a sealing problem.

[0005] At the same time, among the existing detection methods, the water detection method is a commonly used detection method with high accuracy. The water detection method requires the use of a water tank, but the water tank and the inflation head are separately provided, that is, during the detection, the inflation head is inserted into the inflation port of the aluminum film balloon, and then the aluminum film balloon is placed in the water tank. During the detection, the inflation head inflates the aluminum film balloon, and the inflation condition of the aluminum film balloon is judged by the bubbles. However, the above method has a disadvantage, that is, it is impossible to judge the airtight condition of the inflation port of the aluminum film balloon, which can easily lead to deviations in the detection results. Summary of the invention

[0006] In view of the above problems, a continuous aluminum film balloon air tightness detection device and method for dynamic sealing detection are provided. By arranging an extrusion plate on both sides of an inflation head, the inflation head first squeezes the aluminum film balloon through the two extrusion plates before inflating the aluminum film balloon, thereby making it impossible for the inflation head to fill gas into the aluminum film balloon. However, the air pressure at the connection between the aluminum film balloon and the inflation head will continue to rise. If the sealing unit fails to seal the aluminum film balloon and the inflation head well, bubbles will appear at the connection between the aluminum film balloon and the inflation head. After the position of the aluminum film balloon is adjusted for the second time, if bubbles are still generated, it means that there is a problem with the sealing unit. If no bubbles are generated when the connection between the aluminum film balloon and the inflation head is inflated, it means that the sealing of the connection is good, thereby avoiding the deviation of the test result due to leakage at the connection between the aluminum film balloon and the inflation head during the subsequent air tightness test of the aluminum film balloon, thereby improving the accuracy of the test result.

[0007] In order to solve the problems of the prior art, the present invention provides a continuous aluminum film balloon air tightness detection device for dynamic sealing detection, including a box body with clean water stored inside and a bracket arranged in the box body; an inflation head for inflating the aluminum film balloon is arranged on the bracket, and a sealing unit for sealing the connection between the inflation head and the aluminum film balloon after the inflation head is connected to the aluminum film balloon; two extrusion plates are arranged above the bracket, the two extrusion plates are symmetrically arranged about the inflation head, and the aluminum film balloon after being connected to the inflation head is located between the two extrusion plates, and when testing the sealing of the connection, the two extrusion plates squeeze the uninflated aluminum film balloon.

[0008] Preferably, the air outlet end of the inflation head is vertically upward.

[0009] Preferably, when the aluminum film balloon is installed on the inflation head, the two extrusion plates limit the aluminum film balloon, and the inclination angle of the aluminum film balloon after the limitation is less than 45 degrees.

[0010] Preferably, the sealing unit includes two clamping members symmetrically arranged about the inflation head, and the two clamping members move closer to or away from each other toward the inflation head in a horizontal direction. An arc-shaped silicone sheet is provided on the side where the two clamping members are close to each other, and the two clamping members clamp and seal the aluminum film balloon mounted on the inflation head through the arc-shaped silicone sheet.

[0011] Preferably, the inflation port on the aluminum film balloon has a self-sealing area, and the arc-shaped silicone sheet is located in the self-sealing area when clamping the aluminum film balloon. Preferably, the aluminum film balloon has a rated inflation threshold, and when testing the sealing performance of the aluminum film balloon, the amount of gas inflated into the aluminum film balloon is the same as the minimum value of the rated inflation threshold.

[0012] Preferably, the bracket is also provided with a synchronous moving unit for driving the two extrusion plates to move synchronously, and the synchronous moving unit includes two inflation chambers corresponding to the two extrusion plates, and an inflation sleeve connected to the inflation chamber is provided below the inflation chamber, and an inflation rod is slidably provided in the inflation sleeve, and a pushing unit is provided between the two inflation rods and is respectively hinged to the two inflation rods.

[0013] Preferably, a first one-way valve and a second one-way valve are respectively provided on the inflatable sleeve, the inflatable sleeve is connected to the outside through the first one-way valve, and the second one-way valve is located between the inflatable chamber and the inflatable sleeve, and the second one-way valve allows the air in the inflatable sleeve to flow into the inflatable chamber.

[0014] Preferably, a reversing valve is provided between the second one-way valve and the inflation chamber, the lower part of the reversing valve has two connection positions, the first one-way valve is connected to one of the connection positions, and the other connection position is connected to an air pump, which is located outside the box body. The air pump draws air out of the inflation chamber through the reversing valve.

[0015] The present invention also relates to a method for detecting air tightness of a continuous aluminum film balloon using dynamic sealing detection, and a device for detecting air tightness of a continuous aluminum film balloon using dynamic sealing detection. The specific working steps are as follows: S1. Installing: installing the aluminum film balloon onto the inflation head and clamping and sealing the connection between the aluminum film balloon and the inflation head through a sealing unit; S2. Test the sealing condition of the connection between the aluminum film balloon and the inflation head. The two extrusion plates completely clamp the aluminum film balloon, and the inflation head inflates the aluminum film balloon at the same time. If there is leakage at the connection between the aluminum film balloon and the inflation head, adjust the connection position of the aluminum film balloon and the inflation head for a second time. If there is still leakage, check whether the sealing unit is damaged. S3. Test the sealing status of the aluminum film balloon. If there is no air leakage at the connection between the inflation head and the aluminum film balloon, the two extrusion plates will loosen the aluminum film balloon, and then the inflation head will fill the aluminum film balloon with a rated amount of gas. Finally, the two extrusion plates will squeeze the inflated aluminum film balloon again to observe whether there are bubbles. If there are no bubbles, it means that the tested aluminum film balloon has good sealing. If there are bubbles, it means that the tested aluminum film balloon has a sealing problem.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a squeezing plate on both sides of the inflation head, so that before the inflation head inflates the aluminum film balloon, the two squeezing plates first squeeze the aluminum film balloon, thereby preventing the inflation head from filling the aluminum film balloon with gas, and performing an inflation test on the connection between the aluminum film balloon and the inflation head, thereby avoiding deviations in the test results due to air leakage at the connection between the aluminum film balloon and the inflation head during the subsequent air tightness test of the aluminum film balloon, thereby improving the accuracy of the test results; 2. By making the air outlet end of the inflation head point vertically upward, the connection between the aluminum film balloon and the inflation head is prevented from bending after the aluminum film balloon is inflated. When testing the airtightness of the aluminum film balloon, the amount of gas filled into the aluminum film balloon is the same as the minimum value of the rated inflation threshold, ensuring that the inflation amount of the aluminum film balloon during the test meets the standard and avoiding the explosion of the aluminum film balloon after the extrusion plate squeezes the aluminum film balloon due to excessive inflation. 3. The extrusion plate is driven to move by setting up an inflatable chamber, and the extrusion plate applies pressure to the inflated aluminum film balloon, so that the leakage of the aluminum film balloon is obvious and easy to detect when there is a sealing problem. The inflatable chamber enables the extrusion plate to apply flexible pressure to the aluminum film balloon, which can prevent the aluminum film balloon without elasticity from being over-pressurized and ruptured; 4. When the aluminum film balloon is installed on the inflation head, the two extrusion plates limit the aluminum film balloon, and the inclination angle of the aluminum film balloon after the limit is less than 45 degrees. This prevents the aluminum film balloon from being damaged due to inclination and bending. It is also convenient for the subsequent test of the sealing of the connection between the aluminum film balloon and the inflation head. In the process of the two extrusion plates squeezing the aluminum film balloon, if the inclination angle of the aluminum film balloon is greater than 45 degrees, the aluminum film balloon is prone to be folded and squeezed in the process of the two extrusion plates squeezing the aluminum film balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention; Figure 2 It is a three-dimensional schematic diagram of the continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention after removing the switch door; Figure 3 It is a side view of the continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention; Figure 4 The invention is a continuous aluminum film balloon air tightness detection device for dynamic sealing detection Figure 3 Schematic cross-sectional view at AA in the middle; Figure 5 It is a cutaway perspective schematic diagram of a continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention; Figure 6The invention is a continuous aluminum film balloon air tightness detection device for dynamic sealing detection Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7 The invention is a continuous aluminum film balloon air tightness detection device for dynamic sealing detection Figure 5 A partial enlarged schematic diagram of point C in the middle; Figure 8 The invention is a continuous aluminum film balloon air tightness detection device for dynamic sealing detection Figure 5 A partial enlarged schematic diagram of point D in the middle; Fig. 9 It is a three-dimensional schematic diagram of the continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention after the box body is removed; Fig.10 It is a three-dimensional schematic diagram of the continuous aluminum film balloon air tightness detection device for dynamic sealing detection of the present invention after removing the box body and the lifting unit.

[0018] The numbers in the figure are: 1. Box body; 11. Lifting unit; 12. Camera; 13. Door switch; 2. Bracket; 21. Inflating head; 22. Extrusion plate; 23. Sealing unit; 231. Clamping piece; 232. Curved silicone sheet; 233. Driving unit; 2331. Follow-up frame; 2332. Screw rod; 2333. Waterproof motor; 24. Synchronous moving unit; 241. Inflating chamber; 242. Inflating sleeve; 243. Inflating rod; 244. Pushing unit; 2441. Lifting plate; 2442. Linear drive; 2443. Connecting rod; 245. First one-way valve; 246. Second one-way valve; 247. Reversing valve; 248. Air pump; 3. Aluminum film balloon. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1-Figure 5 : A continuous aluminum film balloon air tightness testing device for dynamic sealing testing, comprising a box body 1 storing clean water inside and a bracket 2 arranged in the box body 1; an inflation head 21 for inflating the aluminum film balloon 3 is arranged on the bracket 2, and a sealing unit 23 for sealing the connection between the inflation head 21 and the aluminum film balloon 3 after the inflation head 21 is connected to the aluminum film balloon 3; two extrusion plates 22 are arranged above the bracket 2, the two extrusion plates 22 are symmetrically arranged about the inflation head 21, and the aluminum film balloon 3 after being connected to the inflation head 21 is located between the two extrusion plates 22, and when testing the sealing of the connection, the two extrusion plates 22 squeeze the uninflated aluminum film balloon 3.

[0021] Most of the aluminum film balloons 3 have a rated inflation threshold, that is, when in use, the inflation amount of the aluminum film balloon 3 needs to be kept within the rated inflation threshold range. If the inflation is too little, the aluminum film balloon 3 is not full. If the aluminum film balloon 3 is inflated to an over-full state, even if the aluminum film balloon 3 does not explode during inflation, it is easy to explode suddenly during use. In this way, the thickness of the aluminum film balloon 3 after inflation can be predicted. In the existing test process, there are mainly two detection methods, one is the air pressure detection method, and the other is the water detection method. Among them, the air pressure detection method is to detect the air pressure in the aluminum film balloon 3 after the aluminum film balloon 3 is inflated with air. However, as mentioned above, when the air pressure of the aluminum film balloon 3 is high, even if it does not explode during inflation, it is easy to explode when subjected to external force after inflation, resulting in a lack of stability in the test process; if the water detection method is used for detection, the aluminum film balloon 3 needs to be placed in water and inflated, and then observe whether bubbles are generated in the water, and then judge whether the aluminum film balloon 3 has a sealing problem. However, the above two solutions both ignore the sealing problem of the connection between the aluminum film balloon 3 and the inflation head 21 when the aluminum film balloon 3 is installed on the inflation head 21, which leads to deviation in the detection results.

[0022] In order to avoid the above situation, the existing air tightness detection device is optimized so that before the air tightness detection of the aluminum film balloon 3, the air tightness detection device will autonomously detect the connection between the aluminum film balloon 3 and the inflation head 21. After detecting that the aluminum film balloon 3 and the inflation head 21 are in a sealed state, the air tightness detection device will perform a normal test on the aluminum film balloon 3, thereby ensuring the accuracy of the test result. The specific structure and working process of the air tightness detection device are as follows: There is a water source in the box 1, and a switch door 13 is hinged on the upper part of the box 1. A camera 12 is arranged on the switch door 13. When detecting, the switch door 13 is closed, and the camera 12 detects the bubbles generated in the box 1. A lifting unit 11 is arranged in the box 1 to drive the bracket 2 to move in the vertical direction. The lifting unit 11 adopts a threaded structure to ensure the stability of the bracket 2 when it is lifted or lowered. The path of the bracket 2 when moving in the vertical direction has a highest position and a lowest position. When the bracket 2 is at the highest position, the bracket 2 is above the liquid surface in the box 1. The staff then puts the aluminum film balloon 3 on the inflation head 21, and seals the connection between the aluminum film balloon 3 and the inflation head 21 through the sealing unit 23. Then the lifting unit 11 drives the bracket 2 to descend, and the bracket 2 drives the inflation head 21 and the aluminum film balloon 3 mounted on the inflation head 21 to descend and submerge into the water. When the bracket 2 reaches the lowest position, the aluminum film balloon 3 is completely submerged in the water in the box 1, and the liquid level of the water in the box 1 is greater than the height of the aluminum film balloon 3 when it is in a non-bent state. In this way, in subsequent tests, any sealing problems with the aluminum film balloon 3 can be revealed through bubbles.

[0023] When conducting the test, it is first necessary to test the connection between the inflation head 21 and the aluminum film balloon 3. At this time, the two extrusion plates 22 completely squeeze the aluminum film balloon 3, and the inflation head 21 inflates the aluminum film balloon 3. Since the aluminum film balloon 3 is squeezed by the two extrusion plates 22, the inflation head 21 cannot fill the gas into the aluminum film balloon 3, but the air pressure at the connection between the inflation head 21 and the aluminum film balloon 3 will still increase. If the sealing of the connection between the inflation head 21 and the aluminum film balloon 3 is good, no bubbles will appear. Otherwise, bubbles will appear. At this time, the bracket 2 rises again, and the two extrusion plates 22 loosen the aluminum film balloon 3. The staff adjusts the aluminum film balloon 3, and then the sealing unit 23 clamps the inflation head 21 with the aluminum film balloon 3 again, and then the bracket 2 descends. If bubbles are still generated, it is necessary to check whether the sealing unit 23 is damaged; if no bubbles are generated, the two squeezing plates 22 loosen the aluminum film balloon 3, and then the inflation head 21 fills the aluminum film balloon 3 with a rated amount of gas, and then the two squeezing plates 22 approach and squeeze the aluminum film balloon 3 again to observe whether bubbles are generated. If bubbles are generated, it means that there is a problem with the air tightness of the aluminum film balloon 3. If not, it means that the air tightness of the aluminum film balloon 3 is good. Then the bracket 2 rises, and the staff removes the aluminum film balloon 3 that has been tested.

[0024] By arranging an extrusion plate 22 on both sides of the inflation head 21, the inflation head 21 first squeezes the aluminum film balloon 3 through the two extrusion plates 22 before inflating the aluminum film balloon 3, thereby preventing the inflation head 21 from filling gas into the aluminum film balloon 3. However, the air pressure at the connection between the aluminum film balloon 3 and the inflation head 21 will continue to rise. If the sealing unit 23 fails to seal the aluminum film balloon 3 and the inflation head 21 well, bubbles will appear at the connection between the aluminum film balloon 3 and the inflation head 21. After the position of the aluminum film balloon 3 is adjusted for the second time, if bubbles are still generated, it means that there is a problem with the sealing unit 23. If no bubbles are generated during the inflation test at the connection between the aluminum film balloon 3 and the inflation head 21, it means that the sealing of the connection is good, thereby avoiding the deviation of the test result due to leakage at the connection between the aluminum film balloon 3 and the inflation head 21 in the subsequent air tightness test of the aluminum film balloon 3, thereby improving the accuracy of the test result.

[0025] Reference Figure 4 : The air outlet end of the inflation head 21 is vertically upward.

[0026] In this way, when the inflation head 21 inflates the aluminum film balloon 3, the aluminum film balloon 3 will not float up and bend due to the buoyancy generated by the inflation. If the outlet end of the inflation head 21 is set vertically downward, when the aluminum film balloon 3 is tested, since the aluminum film balloon 3 is located below the inflation head 21, after the aluminum film balloon 3 is inflated, the connection between the aluminum film balloon 3 and the inflation head 21 will bend, which may easily cause the aluminum film balloon 3 to be damaged during the test.

[0027] Reference Figure 4 When the aluminum film balloon 3 is installed on the inflation head 21, the two extrusion plates 22 limit the aluminum film balloon 3, and the inclination angle of the aluminum film balloon 3 after limiting is less than 45 degrees.

[0028] When the aluminum film balloon 3 is installed on the inflation head 21, since the air outlet of the inflation head 21 is vertically arranged upward, after the aluminum film balloon 3 is connected to the inflation head 21, the main part of the aluminum film balloon 3 is located on the upper part of the inflation head 21, and the aluminum film balloon 3 that has just been installed is in an uninflated state, and the main body of the aluminum film balloon 3 will inevitably be tilted. The aluminum film balloon 3 is limited by two extrusion plates 22, and the inclination angle of the aluminum film balloon 3 is made less than 45 degrees, so as to avoid the aluminum film balloon 3 from being damaged due to inclination and bending. At the same time, it is also convenient for testing the sealing of the connection between the aluminum film balloon 3 and the inflation head 21 later. In the process of the two extrusion plates 22 squeezing the aluminum film balloon 3, if the inclination angle of the aluminum film balloon 3 is greater than 45 degrees, the aluminum film balloon 3 is prone to be folded and squeezed in the process of the two extrusion plates 22 squeezing the aluminum film balloon 3.

[0029] Reference Figure 6 The sealing unit 23 includes two clamping members 231 symmetrically arranged about the inflation head 21. The two clamping members 231 approach or move away from each other in the horizontal direction toward the inflation head 21. An arc-shaped silicone sheet 232 is arranged on the side where the two clamping members 231 are close to each other. The two clamping members 231 clamp and seal the aluminum film balloon 3 mounted on the inflation head 21 through the arc-shaped silicone sheet 232.

[0030] Reference Fig. 9 and Fig.10 : The inflation port on the aluminum film balloon 3 has a self-sealing area, and the arc-shaped silicone sheet 232 is located in the self-sealing area when clamping the aluminum film balloon 3.

[0031] Since the inflation port of the aluminum film balloon 3 has a self-sealing area, when the arc-shaped silicone sheet 232 clamps the aluminum film balloon 3, it is necessary to ensure that the connection between the clamping piece 231 and the aluminum film balloon 3 is located within the self-sealing area of ​​the aluminum film balloon 3. This can prevent the aluminum film balloon 3 outside the self-sealing area from being blocked by the arc-shaped silicone sheet 232 when there is damage, thereby improving the accuracy of detection. A driving unit 233 for driving the two clamping members 231 to move is arranged on the bracket 2. The driving unit 233 includes two follower frames 2331 respectively arranged on both sides of the inflation head 21. A screw rod 2332 is horizontally arranged at the lower part of the bracket 2. The screw rod 2332 passes through the two follower frames 2331 in sequence along the horizontal direction, and the screw rod 2332 has two sections of threads with the same length and opposite rotation directions. The two follower frames 2331 are respectively located on the two sections of threads. A waterproof motor 2333 for driving the screw rod 2332 to rotate is arranged at the end of the screw rod 2332. The clamping member 231 is arranged on the follower frame 2331. When the follower frame 2331 moves, the clamping member 231 and the follower frame 2331 move synchronously.

[0032] Reference Figure 1-Figure 10 : The aluminum film balloon 3 has a rated inflation threshold. When testing the sealing performance of the aluminum film balloon 3, the amount of gas filled into the aluminum film balloon 3 is the same as the lowest value of the rated inflation threshold.

[0033] By ensuring that the amount of gas filled into the aluminum film balloon 3 is the same as the minimum value of the rated inflation threshold, it is ensured that the inflation amount of the aluminum film balloon 3 during the test meets the standard, and can avoid the situation where the aluminum film balloon 3 explodes after being squeezed by the squeezing plate 22 due to excessive inflation.

[0034] Reference Figure 4 and Figure 5 : The bracket 2 is also provided with a synchronous moving unit 24 for driving the two extrusion plates 22 to move synchronously. The synchronous moving unit 24 includes two air-filling bins 241 corresponding to the two extrusion plates 22. An air-filling sleeve 242 connected to the air-filling bin 241 is provided below the air-filling bin 241. An air-filling rod 243 is slidably provided in the air-filling sleeve 242. A pushing unit 244 is provided between the two air-filling rods 243 and is respectively hinged to the two air-filling rods 243.

[0035] The pushing unit 244 includes a lifting plate 2441 that moves in a vertical direction and a linear driver 2442 arranged at the lower part of the lifting plate 2441 for driving the lifting plate 2441 to move. A connecting rod 2443 is arranged between the inflation rod 243 and the lifting plate 2441. The two ends of the connecting rod 2443 are respectively hinged to the inflation rod 243 and the lifting plate 2441. In this way, when the lifting plate 2441 is lifted and lowered, the moving distances of the inflation rods 243 slidingly arranged in the two inflation sleeves 242 are exactly the same, thereby ensuring that the amount of air filled into the inflation bin 241 is exactly the same, thereby achieving the two extrusion plates 22 to move synchronously and at the same speed with each other, thereby ensuring that under the limit of the two extrusion plates 22, no matter in which direction the aluminum film balloon 3 is tilted, the inclination angle of the aluminum film balloon 3 is the same. The inflatable chamber 241 is arranged on the follower frame 2331 , and an extension rod is arranged on the side of the extrusion plate 22 facing the follower frame 2331 . The extension rod penetrates the follower frame 2331 and extends into the inflatable chamber 241 , and the extension rod is slidably matched with the inflatable chamber 241 .

[0036] Reference Figure 7-10 : A first one-way valve 245 and a second one-way valve 246 are respectively provided on the inflatable sleeve 242. The inflatable sleeve 242 is connected to the outside through the first one-way valve 245. The second one-way valve 246 is located between the inflatable chamber 241 and the inflatable sleeve 242. The second one-way valve 246 allows the air in the inflatable sleeve 242 to flow into the inflatable chamber 241.

[0037] Reference Figure 8 : A reversing valve 247 is arranged between the second one-way valve 246 and the inflation chamber 241. The lower part of the reversing valve 247 has two connection positions. The first one-way valve 245 is connected to one of the connection positions, and the other connection position is connected to an air pump 248. The air pump 248 is located outside the box body 1. The air pump 248 extracts the air in the inflation chamber 241 through the reversing valve 247.

[0038] During inflation, the lifting plate 2441 is raised and lowered and drives the inflation rod 243 to move through the connecting rod 2443. When the inflation rod 243 slides into the inflation sleeve 242, the air in the inflation sleeve 242 flows into the inflation chamber 241 through the second one-way valve 246 and the reversing valve 247. When the inflation rod 243 slides out, the outside air enters the inflation sleeve 242 through the first one-way valve 245, so that the two extrusion plates 22 are close to each other. The stroke of the lifting plate 2441 is fixed. By controlling the lifting times of the lifting plate 2441, the inflation amount can be accurately controlled, thereby controlling the pressure of the extrusion plate 22 to avoid damage to the aluminum film balloon 3. If it is necessary to separate the two extrusion plates 22, the reversing valve 247 is changed, and the air pump 248 is connected to the inflation chamber 241 through the reversing valve 247. The air pump 248 extracts the air in the inflation chamber 241, and the air in the inflation chamber 241 is completely extracted each time, so as to ensure that the two extrusion plates 22 can be symmetrical about the inflation head 21 during the subsequent movement.

[0039] Reference Figure 1-Figure 10 The present invention also relates to a continuous aluminum film balloon air tightness detection method for dynamic sealing detection, and a continuous aluminum film balloon air tightness detection device for dynamic sealing detection. The specific working steps are as follows: S1, installation, installing the aluminum film balloon 3 onto the inflation head 21 and clamping and sealing the connection between the aluminum film balloon 3 and the inflation head 21 through the sealing unit 23; S2, testing the sealing condition of the connection between the aluminum film balloon 3 and the inflation head 21, the two extrusion plates 22 completely clamp the aluminum film balloon 3, and the inflation head 21 inflates the aluminum film balloon 3 at the same time. If there is leakage at the connection between the aluminum film balloon 3 and the inflation head 21, the connection position of the aluminum film balloon 3 and the inflation head 21 is adjusted for a second time. If there is still leakage, check whether the sealing unit 23 is damaged; S3. Test the sealing status of the aluminum film balloon 3. If there is no air leakage at the connection between the inflation head 21 and the aluminum film balloon 3, the two squeezing plates 22 will loosen the aluminum film balloon 3. Then the inflation head 21 will fill the aluminum film balloon 3 with a rated amount of gas. Finally, the two squeezing plates 22 will squeeze the inflated aluminum film balloon 3 again to see whether bubbles are generated. If there are no bubbles, it means that the tested aluminum film balloon 3 has good sealing performance. If there are bubbles, it means that the tested aluminum film balloon 3 has a sealing problem.

[0040] Working principle: When conducting the test, firstly, the connection between the inflation head 21 and the aluminum film balloon 3 needs to be tested. At this time, the two squeezing plates 22 completely squeeze the aluminum film balloon 3, and the inflation head 21 inflates the aluminum film balloon 3. Since the aluminum film balloon 3 is squeezed by the two squeezing plates 22, the inflation head 21 cannot fill the gas into the aluminum film balloon 3, but the air pressure at the connection between the inflation head 21 and the aluminum film balloon 3 will still increase. If the sealing of the connection between the inflation head 21 and the aluminum film balloon 3 is good, no bubbles will appear. Otherwise, bubbles will appear. At this time, the bracket 2 rises again, and the two squeezing plates 22 loosen the aluminum film balloon 3. After that, the staff adjusts the aluminum film balloon 3, and then the sealing unit 23 clamps the inflation head 21 with the aluminum film balloon 3 again, and then the bracket 2 descends. If bubbles are still generated, it is necessary to check whether the sealing unit 23 is damaged; if no bubbles are generated, the two squeezing plates 22 loosen the aluminum film balloon 3, and then the inflation head 21 fills the aluminum film balloon 3 with a rated amount of gas, and then the two squeezing plates 22 approach and squeeze the aluminum film balloon 3 again to observe whether bubbles are generated. If bubbles are generated, it means that there is a problem with the air tightness of the aluminum film balloon 3. If not, it means that the air tightness of the aluminum film balloon 3 is good. Then the bracket 2 rises, and the staff removes the aluminum film balloon 3 that has been tested.

[0041] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A continuous aluminum film balloon air tightness detection device for dynamic sealing detection, comprising a box (1) storing clean water inside and a bracket (2) arranged inside the box (1); characterized in that: An inflation head (21) for inflating the aluminum film balloon (3) is arranged on the bracket (2), and a sealing unit (23) for sealing the connection between the inflation head (21) and the aluminum film balloon (3) after the inflation head (21) and the aluminum film balloon (3) are connected. Two extrusion plates (22) are arranged above the bracket (2). The two extrusion plates (22) are symmetrically arranged with respect to the inflation head (21), and the aluminum film balloon (3) connected to the inflation head (21) is located between the two extrusion plates (22). When testing the sealing of the connection, the two extrusion plates (22) squeeze the installed but uninflated aluminum film balloon (3).

2. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 1 is characterized in that: The gas outlet end of the inflation head (21) is vertically upward.

3. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 1 is characterized in that: When the aluminum film balloon (3) is mounted on the inflation head (21), the two extrusion plates (22) limit the position of the aluminum film balloon (3), and the inclination angle of the aluminum film balloon (3) after the limit is less than 45 degrees.

4. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 1 is characterized in that: The sealing unit (23) comprises two clamping members (231) symmetrically arranged about the inflation head (21); the two clamping members (231) move toward or away from each other in a horizontal direction toward the inflation head (21); an arc-shaped silicone sheet (232) is arranged on one side of the two clamping members (231) where the two clamping members (231) are close to each other; the two clamping members (231) clamp and seal the aluminum film balloon (3) sleeved on the inflation head (21) through the arc-shaped silicone sheet (232).

5. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 4 is characterized in that: The inflation port on the aluminum film balloon (3) has a self-sealing area, and the arc-shaped silicone sheet (232) is located within the self-sealing area when clamping the aluminum film balloon (3).

6. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 1 is characterized in that: The aluminum film balloon (3) has a rated inflation threshold value. When testing the sealing performance of the aluminum film balloon (3), the amount of gas inflated into the aluminum film balloon (3) is the same as the lowest value of the rated inflation threshold value.

7. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 1 is characterized in that: The bracket (2) is also provided with a synchronous moving unit (24) for driving the two extrusion plates (22) to move synchronously. The synchronous moving unit (24) comprises two inflatable chambers (241) corresponding to the two extrusion plates (22). An inflatable sleeve (242) in communication with the inflatable chamber (241) is provided below the inflatable chamber (241). An inflatable rod (243) is slidably provided in the inflatable sleeve (242). A pushing unit (244) is provided between the two inflatable rods (243) and is respectively hinged to the two inflatable rods (243).

8. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 7 is characterized in that: A first one-way valve (245) and a second one-way valve (246) are respectively arranged on the inflatable sleeve (242); the inflatable sleeve (242) is connected to the outside through the first one-way valve (245); the second one-way valve (246) is located between the inflatable chamber (241) and the inflatable sleeve (242); the second one-way valve (246) allows air in the inflatable sleeve (242) to flow into the inflatable chamber (241).

9. The continuous aluminum film balloon air tightness detection device for dynamic sealing detection according to claim 8 is characterized in that: A reversing valve (247) is provided between the second one-way valve (246) and the air filling chamber (241). The lower portion of the reversing valve (247) has two connection positions. The first one-way valve (245) is connected to one of the connection positions. The other connection position is connected to an air pump (248). The air pump (248) is located outside the box body (1). The air pump (248) extracts air from the air filling chamber (241) through the reversing valve (247).

10. A method for detecting air tightness of a continuous aluminum film balloon with dynamic sealing detection, using the continuous aluminum film balloon air tightness detection device with dynamic sealing detection as claimed in any one of claims 1 to 9, characterized in that: The specific working steps are as follows: S1, installation, installing the aluminum film balloon (3) onto the inflation head (21) and clamping and sealing the connection between the aluminum film balloon (3) and the inflation head (21) through the sealing unit (23); S2. Test the sealing condition of the connection between the aluminum film balloon (3) and the inflation head (21). The two extrusion plates (22) completely clamp the aluminum film balloon (3). At the same time, the inflation head (21) inflates the aluminum film balloon (3). If there is leakage at the connection between the aluminum film balloon (3) and the inflation head (21), the connection position between the aluminum film balloon (3) and the inflation head (21) is adjusted for a second time. If there is still leakage, check whether the sealing unit (23) is damaged. S3. Test the sealing state of the aluminum film balloon (3). If there is no air leakage at the connection between the inflation head (21) and the aluminum film balloon (3), the two squeezing plates (22) loosen the aluminum film balloon (3). Then, the inflation head (21) fills the aluminum film balloon (3) with a rated amount of gas. Finally, the two squeezing plates (22) squeeze the inflated aluminum film balloon (3) again to observe whether bubbles are generated. If there are no bubbles, it means that the aluminum film balloon (3) under test has good sealing. If there are bubbles, it means that the aluminum film balloon (3) under test has a sealing problem.

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