Sealing performance detection device for fragrance product

Abstract

The invention relates to air tightness detection of a fragrance product, in particular to a sealing detection device for the fragrance product, which comprises a detection table, and a mobile platform is arranged on the upper surface of the inner side of the detection table, and has the beneficial effects that a detection cabin sealing base, a detection cabin and an airtight valve pipe sleeve which are matched with each other are designed as a closed detection cabin; tracking gas, such as nitrogen, is injected into the interior of the detection cabin through a tracking gas exhaust branch pipe, so that the interior of the detection cabin is kept in a positive pressure environment, and heating is performed through a heating pipe assembly, so that the internal pressure is increased, the temperature is increased, and volatilization of a fragrance product is accelerated; the gas guide pipe enters the airtight valve pipe sleeve to release gas into the condensation chamber, and then the gas is detected by the PID / MOX sensor array mounted on the sensor array mounting plate, so that whether essence leaks or not is accurately identified, the airtightness detection of the fragrance product is completed, and the whole detection process is free of damage.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of airtightness detection of fragrance products, and particularly relates to a sealing detection device for fragrance products. BACKGROUND

[0002] During the packaging process after loading, the fragrance product has the phenomenon of air leakage due to quality problems of the bottle or the packaging equipment, which affects the transportation and storage of the fragrance product. Since the fragrance product generally includes alcohol and essence two substances and has a certain volatility, if the sealing performance of the packaging is poor, the fragrance will quickly evaporate in the air. Therefore, after the production of the fragrance product is completed, the sealing performance of the packaging must be detected. In the prior art, a vacuum negative pressure method is generally used to detect the sealing performance of the fragrance product. The principle is to indirectly judge the leakage rate by monitoring the pressure recovery rate after vacuumizing.

[0003] The Chinese patent document with the publication number CN221037906U proposes a detection device for detecting the sealing performance of fragrance filling. By cooperating the placement frame, the square opening, the sealing ring, the top cover and the extension plate, the sealing performance of the inside of the placement frame and the top cover is better when they are assembled, so that external air is not sucked when air is extracted. However, in the above-mentioned manner, when the vacuum extraction is extracted to a certain extent, the boiling point of alcohol contained in the fragrance inside will be reduced. Even if no heating is added, the liquid surface will be violently flashed, causing "false leakage", and more seriously, the risk of explosion at the packaging connection port.

[0004] Therefore, the application proposes a sealing detection device for fragrance products, which solves the problem that the sealing performance of the fragrance product is detected by the vacuum negative pressure method in the prior art, which easily causes the liquid to violently flash and generate false leakage. The detection device is improved, a sealing detection cabin is designed in cooperation with a PID / MOX sensor array detection chamber, the fragrance package is arranged in the sealed detection cabin, the heating module is used to accelerate the evaporation of trace leakage gas, the sensor array quickly captures the characteristic gas signal, and the detection process is damage-free. SUMMARY

[0005] In view of the deficiencies in the prior art, the application aims to provide a sealing detection device for fragrance products to solve the problems in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A kind of sealing detection device for fragrance product, including detection table, the inner side upper surface of the detection table is provided with moving platform, one side of the detection table is provided with drive motor, both sides of the moving platform are provided with cylinder mounting bracket, the upper surface of the moving platform is fixedly installed with fixed base, the upper surface of the fixed base is fixedly installed with detection cabin sealing base, the upper of the detection cabin sealing base is provided with detection cabin, the upper of the cylinder mounting bracket is fixedly installed with telescopic rod, the output end below of the telescopic rod is fixedly installed with fixed cover, the lower surface of the fixed cover is fixedly installed with closure cover by bolt, the lower surface of the fixed cover is fixedly installed with closure cover by bolt.

[0007] Preferably, the bottom of the detection cabin sealing base is fixedly installed with a tracking gas inlet branch pipe, the outer surface below of the detection table is fixedly installed with a detection gas outlet main pipe, the inner wall above of the detection gas outlet main pipe is fixedly installed with a corrugated pipe two, one end of the corrugated pipe two is fixedly connected with one end of the tracking gas inlet branch pipe.

[0008] Preferably, the upper surface of the detection cabin sealing base is fixedly installed with a sealing installation flange, the bottom of the detection cabin is fixedly connected with the upper surface of the sealing installation flange by bolt, the inner side surface of the sealing installation flange is fixedly installed with a detection circular table, the inside of the detection circular table is fixedly installed with a heating pipe assembly, the inner side surface of the detection circular table is fixedly installed with a mesh sleeve.

[0009] Preferably, the upper end of the tracking gas inlet branch pipe penetrates the inner wall of the detection cabin sealing base and enters the inner cavity of the detection circular table, the outer side wall of the detection circular table is uniformly distributed with gas dispersion holes, the sidewall below of the mesh sleeve is provided with air inlets corresponding to the positions of the gas dispersion holes.

[0010] Preferably, the inner surface of the detection cabin is fixedly installed with a sealing plug ring above, the sealing plug ring is fixedly installed with a mounting ring above by bolt, the inner side surface of the sealing plug ring is fixedly installed with a gas flow guide cover below, the two inner walls of the gas flow guide cover are symmetrically provided with a sensor one and a sensor two.

[0011] Preferably, the upper surface of the mounting ring is fixedly installed with a gas-tight valve pipe sleeve by bolt, the lower surface of the mounting ring is provided with a sealing limiting ring matched with the mounting ring, the lower end of the gas-tight valve pipe sleeve is clamped with the upper end of the gas flow guide cover, the inner surface below of the gas-tight valve pipe sleeve is fixedly installed with an outer hole pipe, the bottom of the outer hole pipe is spindle-shaped.

[0012] Preferably, an inner hole pipe is slidably installed in the inner hole pipe, a sealing stop ring matched with the inner hole pipe is fixedly installed above the inner surface of the outer hole pipe, a return spring is fixedly installed on the inner surface of the outer hole pipe, the upper end of the return spring is fixedly connected with the lower surface of the inner hole pipe.

[0013] Preferably, a fixed magnetic ring one is fixedly installed in the middle of the lower surface of the fixed cover, a gas detection chamber is arranged below the fixed magnetic ring one, a fixed magnetic ring two is fixedly installed on the outer side of the gas detection chamber, the upper surface of the fixed magnetic ring two is in contact with the lower surface of the fixed magnetic ring one, a detection gas outlet is arranged at the bottom of the gas detection chamber, a sensor array mounting plate is fixedly installed on the inner side of the gas detection chamber through bolts, and a sensor array is arranged on the upper surface of the sensor array mounting plate.

[0014] Preferably, a condensation chamber is fixedly installed in the middle of the lower surface of the sensor array mounting plate, the lower surface of the condensation chamber is in contact with the inner surface of the closed cover, fragrance air vents are uniformly distributed on the side wall of the condensation chamber, and a condensation spiral cone is fixedly installed below the top of the condensation chamber.

[0015] Preferably, a gas discharge branch pipe is fixedly installed on the side wall of the closed cover, a detection gas discharge main pipe is fixedly installed on the outer side surface of the detection table, a bellows one is fixedly installed on the inner wall of the detection gas discharge main pipe, one end of the bellows one is fixedly connected with one end of the gas discharge branch pipe, a gas flow guide pipe is fixedly installed in the middle of the lower surface of the closed cover, the size of the gas flow guide pipe is matched with the size of the airtight valve pipe sleeve, a spring sealing plug is arranged on the outer side of the gas flow guide pipe, and the spring sealing plug is movably installed at the bottom of the closed cover.

[0016] Compared with the prior art, the beneficial effects of the present application are: By designing the detection cabin sealing base, the detection cabin, and the airtight valve pipe sleeve as a closed detection cabin, by injecting tracking gas such as nitrogen into the internal branch pipe, the internal pressure of the detection cabin is kept at a positive pressure environment, and the heating pipe assembly is heated to increase the internal pressure and temperature, accelerate the volatilization of fragrance products, and accelerate the volatilization of fragrance products. When detecting, the fixed cover and the closed cover are pressed down by the telescopic rod, the gas flow guide pipe enters the internal airtight valve pipe sleeve, the gas is released into the internal condensation chamber, and then the PID / MOX sensor array installed on the sensor array mounting plate detects whether there is fragrance leakage, and the air tightness of the fragrance product is detected. The whole detection process is damage-free, and the whole is designed to be detachable, so that the sensor is easy to replace, solving the problem that the vacuum negative pressure method is used to detect the air tightness of the fragrance product in the prior art, which is easy to cause liquid to flash and produce false leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front structure schematic diagram of the undetected state of the present application. Figure 2 It is a back structure schematic diagram of the undetected state of the present application. Figure 3This is a front view of the prepared detection state structure of the present invention; Figure 4 This is a schematic diagram of the front structure of the detection state of the present invention; Figure 5 This is a schematic diagram of the main component structure of the present invention; Figure 6 A schematic diagram of the detection state structure for a single detection unit of the present invention; Figure 7 This is a schematic diagram of the detection state structure of a single detection unit of the present invention; Figure 8 This is a schematic diagram of the overall structure of the detection chamber and airtight valve sleeve of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the detection chamber of the present invention at point AA; Figure 10 This is a schematic diagram of the cross-sectional structure of the mesh sleeve at point AA according to the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the outer hole tube AA of the present invention; Figure 12 This is a schematic diagram of the installation structure of the detection chamber of the present invention; Figure 13 This is a schematic diagram of the disassembly structure of the airtight valve sleeve of the present invention; Figure 14 This is a bottom view of the internal structure of the detection chamber of the present invention; Figure 15 This is a schematic diagram of the internal structure of the airtight valve sleeve of the present invention; Figure 16 This is a schematic diagram of the enclosure of the present invention in the detection state; Figure 17 This is a schematic cross-sectional view of the enclosure and testing chamber of the present invention at point BB. Figure 18 This is a schematic cross-sectional view of the gas guide tube and airtight valve sleeve of the present invention at point BB. Figure 19 This is a schematic diagram of the overall structure of the fixed cap and sealing cover of the present invention; Figure 20 This is a schematic diagram showing the comparison of the tilting state of the enclosure after disassembly of the present invention; Figure 21 This is a schematic diagram of the overall structure of the gas detection chamber of the present invention; Figure 22 This is a schematic diagram showing the sensor array mounting plate of the present invention before and after disassembly.

[0018] In the diagram: 1. Detection platform; 11. Moving platform; 111. Rack; 12. Drive motor; 121. Drive gear; 13. Cylinder mounting bracket; 14. Tracking gas inlet main pipe; 141. Bellows I; 15. Detection gas outlet main pipe; 151. Bellows II; 2. Fixed base; 21. Detection chamber sealing base; 211. Tracking gas inlet branch pipe; 212. Sealing mounting flange; 213. Detection frustum; 2131. Gas dispersion hole; 214. Heating tube assembly; 215. Mesh sleeve; 2151. Air inlet; 22. Detection chamber; 221. Mounting ring; 2211. Sealing limit ring; 222. Sealing plug ring ; 223. Gas duct; 2231. Sensor 1; 2232. Sensor 2; 23. Airtight valve sleeve; 231. Outer tube; 2311. Sealing ring; 2312. Return spring; 232. Inner tube; 3. Telescopic rod; 31. Fixed cover; 311. Fixed magnetic ring 1; 312. Gas detection chamber; 3121. Fixed magnetic ring 2; 3122. Detected gas outlet; 313. Sensor array mounting plate; 314. Condensation chamber; 3141. Fragrance vent; 3142. Condensation spiral cone; 32. Sealing cover; 321. Gas exhaust branch pipe; 322. Gas duct; 323. Spring sealing plug. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1 to 4This invention provides a technical solution: a sealing performance testing device for fragrance products, comprising a testing platform 1, a movable platform 11 disposed on the inner upper surface of the testing platform 1, a drive motor 12 disposed on one side of the testing platform 1, cylinder mounting brackets 13 disposed on both sides of the movable platform 11, a fixed base 2 fixedly mounted on the upper surface of the movable platform 11, a testing chamber sealing base 21 fixedly mounted on the upper surface of the fixed base 2, a testing chamber 22 disposed above the testing chamber sealing base 21, a telescopic rod 3 fixedly mounted above the cylinder mounting brackets 13, a fixed cover 31 fixedly mounted below the output end of the telescopic rod 3, and a sealing cover 32 fixedly mounted on the lower surface of the fixed cover 31 by bolts. In this embodiment, four sets of movable platforms are disposed on the upper surface of the testing platform 1. 11, and is equipped with four sets of corresponding sliding grooves. Each set of moving platform 11 has a rack 111 fixedly installed on the lower surface. The output shaft of the drive motor 12 is fixedly installed with a drive gear 121. The surface of the drive gear 121 meshes with the lower surface of the rack 111. The drive motor 12 drives the moving platform 11 to move back and forth by driving the drive gear 121 to rotate. Each set of moving platform 11 has a test chamber sealing base 21 and a test chamber 22 fixedly installed on top. The cylinder mounting bracket 13 is used to fix the telescopic rod 3. The telescopic rod 3 drives the fixed cover 31 and the closed cover 32 to move up and down as a whole. The cylinder mounting bracket 13 is also designed with four sets, each set is equipped with a telescopic rod 3, forming four sets of identical test control tests to improve the accuracy of the test. Please see Figures 5 to 8A tracking gas inlet branch pipe 211 is fixedly installed at the bottom of the sealing base 21 of the detection chamber. A detection gas outlet main pipe 15 is fixedly installed below the outer surface of the detection platform 1. A corrugated pipe 151 is fixedly installed above the inner wall of the detection gas outlet main pipe 15. One end of the corrugated pipe 151 is fixedly connected to one end of the tracking gas inlet branch pipe 211. A sealing flange 212 is fixedly installed on the upper surface of the sealing base 21 of the detection chamber. The bottom of the detection chamber 22 is fixedly connected to the upper surface of the sealing flange 212 by bolts. A detection frustum 213 is fixedly installed on the inner surface of the sealing flange 212. A heating tube assembly 214 is fixedly installed inside the detection frustum 213. A mesh sleeve 215 is fixedly installed on the inner surface of the platform 213. The upper end of the tracking gas discharge branch pipe 211 passes through the inner wall of the detection chamber sealing base 21 and enters the inner cavity of the detection frustum 213. Gas dispersion holes 2131 are evenly distributed on the outer wall of the detection frustum 213. An air inlet 2151 corresponding to the position of the gas dispersion hole 2131 is opened on the lower side wall of the mesh sleeve 215. In this embodiment, the detection gas discharge main pipe 15 needs to be connected to the tracking gas supply equipment. The tracking gas can be a colorless, odorless, and harmless gas, such as nitrogen. Its main function is to supply gas to the detection chamber 22 and the detection chamber sealing base through the detection gas discharge main pipe 15, the corrugated pipe 251, and the tracking gas discharge branch pipe 211. The detection chamber, consisting of base 21, is filled with tracking gas to maintain a positive pressure environment. This allows the fragrance components emitted by the product to be carried through the chamber. After the airtight valve sleeve 23 is opened, the product can enter the detection chamber composed of the fixed cover 31 and the sealed cover 32. This ensures that the sensor array is independent of the detection chamber, preventing interference from the internal environment. The specific pre-detection preparation process involves placing the fragrance product to be tested in the center of the detection frustum 213, then installing the detection chamber 22 above the sealing base 21. Bolts are used to fix the bottom of the detection chamber 22 to the sealing flange 212. At this point, the sealing base 21 and the detection chamber 22 form a closed detection chamber. The detection chamber is then tested. The main exhaust pipe 15 injects tracking gas through the second bellows pipe 151 and the tracking gas inlet branch pipe 211. Simultaneously, the heating tube assembly 214 is activated to heat the chamber, raising its internal temperature. The tracking gas first fills the cavity inside the detection frustum 213, then disperses through the gas dispersion hole 2131 and the air inlet 2151 into the space between the mesh sleeve 215 and the detection chamber 22. Finally, it fills the entire detection chamber through the vent holes on the surface of the mesh sleeve 215. This design utilizes gas to evenly distribute the heat from the heating tube assembly 214, making the temperature rise inside the detection chamber more uniform and controllable, avoiding localized overheating, and resulting in more accurate test results. Please see Figures 9 to 11A sealing ring 222 is fixedly installed above the inner surface of the detection chamber 22. An installation ring 221 is fixedly installed above the sealing ring 222 by bolts. A gas guide hood 223 is fixedly installed below the inner surface of the sealing ring 222. Sensor 1 2231 and sensor 2 2232 are symmetrically arranged on the inner walls of both sides of the gas guide hood 223. In this embodiment, the sealing ring 222 mainly seals the space above the detection chamber 22 and the mesh sleeve 215, so that the tracking gas exists in the area where the heating tube assembly 214 is located. The installation ring 221 mainly installs the airtight valve sleeve 23 for easy disassembly. The gas guide hood 223 mainly serves to gather and guide the gas, and also facilitates the installation of sensor 1 2231 and sensor 2232. Sensor 1 2231 is a temperature sensor, and sensor 2 2232 is a pressure sensor, which facilitates real-time feedback of the pressure and temperature inside the detection chamber, so that the detection environment is in a monitorable state.

[0021] Example 2 Please see Figures 12 to 15Based on Embodiment 1, to ensure flexible gas transition between the detection chamber (composed of the detection chamber 22 and the detection chamber sealing base 21) and the detection room (composed of the fixed cover 31 and the sealing cover 32), this embodiment further proposes that an airtight valve sleeve 23 be fixedly installed on the upper surface of the mounting ring 221 by bolts, and a sealing limiting ring 2211 adapted to the mounting ring 221 is provided on the lower surface of the mounting ring 221. The lower end of the airtight valve sleeve 23 is engaged with the upper end of the gas guide cover 223. An outer tube 231 is fixedly installed below the inner surface of the outer tube 231. The bottom of the outer tube 231 is spindle-shaped. An inner tube 232 is slidably installed inside the outer tube 231. A sealing ring 2311 adapted to the inner tube 232 is fixedly installed above the inner surface of the outer tube 231. A return spring 2312 is fixedly installed on the upper inner surface of the outer tube 231. The upper end of the return spring 2312 is fixedly connected to the lower surface of the inner tube 232. In this embodiment, the airtight valve sleeve 23 is secured by bolts. The sealing ring 2211 is fixedly installed above the mounting ring 221 for easy replacement. The sealing limit ring 2211 increases the sealing performance of the airtight valve sleeve 23. Under normal conditions, the return spring 2312 inside the outer tube 231 pushes up the inner tube 232, and the sealing ring 2311 limits the inner tube 232. At this time, the outer tube 231 and the inner tube 232 are misaligned, and the gas inside the detection chamber is sealed below the outer tube 231. When the inner tube 232 is subjected to downward pressure, the return spring 231... 2 is compressed, at which point the inner tube 232 and the outer tube 231 are aligned. At this time, the gas inside the detection chamber is under positive pressure and will be released into the inner tube 232 through the overlapping area of ​​the outer tube 231 and the inner tube 232. Finally, it will transition into the detection chamber composed of the fixed cover 31 and the sealing cover 32. The bottom of the outer tube 231 is spindle-shaped to guide the gas release, allowing the gas to enter the area between the airtight valve sleeve 23 and the outer tube 231 through both sides and be released quickly.

[0022] Example 3 Please see Figures 16 to 17Based on Embodiment 2, to reduce the impact of high-temperature gas inside the detection chamber on the sensor array, this embodiment further proposes that a first fixing magnetic ring 311 is fixedly installed in the middle of the lower surface of the fixed cover 31. A gas detection chamber 312 is arranged below the first fixing magnetic ring 311, and a second fixing magnetic ring 3121 is fixedly installed on the outside of the gas detection chamber 312. The upper surface of the second fixing magnetic ring 3121 is in contact with the lower surface of the first fixing magnetic ring 311. A detection gas outlet 3122 is opened at the bottom of the gas detection chamber 312. A sensor array mounting plate 313 is fixedly installed on the upper inner side of the gas detection chamber 312 by bolts. A sensor array is arranged on the upper surface of the sensor array mounting plate 313. In this embodiment, the fixed cover 31 and the enclosure 32 are fixed with bolts and can be disassembled. The gas detection chamber 312 is connected to the first fixing magnetic ring 311 by the second fixing magnetic ring 3121, so that the gas detection chamber 312 can be removed as a whole. The sensor array mounting plate 313 is used to install the detection sensor array, such as PID / MOX. The sensor array, consisting of a PID (photoionization detector) and a MOX (metal oxide semiconductor, commonly known as an "electronic nose"), can identify and detect the volatile fragrances in fragrance products, thereby detecting the airtightness of the fragrance products. The entire array can be disassembled for easy replacement and maintenance of the sensor array in the future. Please see Figures 18 to 22 A condensing chamber 314 is fixedly installed in the middle of the lower surface of the sensor array mounting plate 313. The lower surface of the condensing chamber 314 is in contact with the inner surface of the enclosure 32. Fragrance vents 3141 are evenly distributed above the side wall of the condensing chamber 314. A condensing spiral cone 3142 is fixedly installed below the top of the condensing chamber 314. In this embodiment, the condensing chamber 314 separates a condensing cavity inside the gas detection chamber 312, so that the high-temperature gas released from the detection chamber first enters the condensing chamber 314 through the inner tube 232 and the gas guide tube 322. The condensing spiral cone 3142 plays a certain role in cooling and condensing the alcohol or other volatile components carried in the high-temperature gas, avoiding direct contact with the sensor array and causing adverse effects. After condensation and cooling, the gas enters the sensor array recognition area of ​​the gas detection chamber 312 through the fragrance vents 3141 via the spiral guidance of the condensing spiral cone 3142 for fragrance component detection. Please see Figure 20A gas exhaust branch pipe 321 is fixedly installed on the side wall of the sealed cover 32. A detection gas exhaust main pipe 14 is fixedly installed above the outer surface of the detection platform 1. A corrugated pipe 141 is fixedly installed above the inner wall of the detection gas exhaust main pipe 14. One end of the corrugated pipe 141 is fixedly connected to one end of the gas exhaust branch pipe 321. A gas guide pipe 322 is fixedly installed in the middle of the lower surface of the sealed cover 32. The size of the gas guide pipe 322 is adapted to the size of the airtight valve sleeve 23. A spring sealing plug 323 is provided on the outside of the gas guide pipe 322. The spring sealing plug 323 is movably installed at the bottom of the sealed cover 32. In this embodiment, when the telescopic rod 3 controls the fixed cover 31 and the sealed cover 32 is pressed down as a whole, the gas guide pipe 322 enters the airtight valve sleeve 23 and presses down the inner hole pipe 232, so that the inner hole pipe 232 and the outer hole pipe 231 are aligned, and the gas release channel inside the detection chamber is opened. The gas inside the detection chamber is opened, allowing it to enter the condensation chamber 314 through the inner tube 232 and the gas guide tube 322. After condensation and cooling, the gas enters the gas detection chamber 312 for detection. When the entire enclosure 32 is pressed down, the spring sealing plug 323 is pushed up by the airtight valve sleeve 23, causing the spring sealing plug 323 to seal the detection gas outlet 3122 at the bottom of the gas detection chamber 312. At this time, the detection gas will remain inside the gas detection chamber 312, extending the sensor detection and recognition time. Then, as the telescopic rod 3 drives the fixed cover 31 and the enclosure 32 to rise as a whole, the spring sealing plug 323 returns to its original position, opening the detection gas outlet 3122. The gas that has been detected will then enter the enclosure 32 through the detection gas outlet 3122. Finally, the gas is traced to the main exhaust pipe 14 and connected to the exhaust equipment. The detected gas is then completely discharged through the corrugated pipe 141 and the gas discharge branch pipe 321.

[0023] Example 4 Please see Figures 1 to 22 Based on Example 3, this example also proposes a method for detecting the sealing performance of a fragrance product using a sealing testing device, comprising the following steps: Step 1: Place the fragrance product to be tested in the middle of the testing platform 213. Then, install the testing chamber 22 on the top of the testing chamber sealing base 21. Use bolts to fix the bottom of the testing chamber 22 to the sealing mounting flange 212. The drive motor 12 drives the moving platform 11 to move under the closed cover 32. Step 2: Heating and inflation are performed. The gas discharge main pipe 15 is used to inject tracking gas through the second bellows pipe 151 and the tracking gas discharge branch pipe 211. At the same time, the heating pipe assembly 214 is turned on to heat the chamber and raise the internal temperature. Sensor 1 2231 is a temperature sensor and sensor 2 2232 is a pressure sensor, which facilitates real-time feedback of the pressure and temperature inside the chamber. Step 3: During testing, when the telescopic rod 3 controls the fixed cover 31 and the sealing cover 32 to press down as a whole, the gas guide pipe 322 enters the airtight valve sleeve 23 and presses down the inner hole pipe 232, so that the inner hole pipe 232 and the outer hole pipe 231 are aligned. The gas release channel inside the detection chamber opens, allowing the gas inside the detection chamber to enter the condensation chamber 314 through the inner hole pipe 232 and the gas guide pipe 322. After condensation and cooling, the gas enters the gas detection chamber 312 for testing. When the sealing cover 32 is pressed down as a whole, the spring sealing plug 323 is pushed up by the airtight valve sleeve 23, so that the spring sealing plug 323 seals the detection gas outlet 3122 at the bottom of the gas detection chamber 312. At this time, the detection gas will remain inside the gas detection chamber 312, extending the sensor detection and recognition time. Step four: After the test is completed, the telescopic rod 3 lifts the fixed cover 31 and the closed cover 32 as a whole, and the spring sealing plug 323 resets, opening the test gas outlet 3122. The gas that has been tested will enter the closed cover 32 through the test gas outlet 3122. Finally, the gas discharge main pipe 14 is connected to the exhaust equipment, and the gas that has been tested is completely discharged through the corrugated pipe 141 and the gas discharge branch pipe 321.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing test device for fragrance products, comprising a test platform (1), a movable platform (11) provided on the inner upper surface of the test platform (1), a drive motor (12) provided on one side of the test platform (1), and cylinder mounting brackets (13) provided on both sides of the movable platform (11), characterized in that: A fixed base (2) is fixedly installed on the upper surface of the mobile platform (11). A test chamber sealing base (21) is fixedly installed on the upper surface of the fixed base (2). A test chamber (22) is provided above the test chamber sealing base (21). A telescopic rod (3) is fixedly installed above the cylinder mounting bracket (13). A fixed cover (31) is fixedly installed below the output end of the telescopic rod (3). A sealing cover (32) is fixedly installed on the lower surface of the fixed cover (31) by bolts.

2. The sealing test device for fragrance products according to claim 1, characterized in that: The bottom of the sealed base (21) of the detection chamber is fixedly installed with a tracking gas inlet branch pipe (211), and the outer surface of the detection platform (1) is fixedly installed with a detection gas outlet main pipe (15). The inner wall of the detection gas outlet main pipe (15) is fixedly installed with a second corrugated pipe (151), and one end of the second corrugated pipe (151) is fixedly connected to one end of the tracking gas inlet branch pipe (211).

3. The sealing test device for fragrance products according to claim 2, characterized in that: A sealing flange (212) is fixedly installed on the upper surface of the sealing base (21) of the detection chamber. The bottom of the detection chamber (22) is fixedly connected to the upper surface of the sealing flange (212) by bolts. A detection frustum (213) is fixedly installed on the inner surface of the sealing flange (212). A heating tube assembly (214) is fixedly installed inside the detection frustum (213). A mesh sleeve (215) is fixedly installed on the inner surface of the detection frustum (213).

4. The sealing test device for fragrance products according to claim 3, characterized in that: The upper end of the tracking gas discharge branch pipe (211) passes through the inner wall of the detection chamber sealing base (21) and enters the inner cavity of the detection frustum (213). The outer wall of the detection frustum (213) is evenly distributed with gas dispersion holes (2131). The lower side wall of the mesh sleeve (215) is provided with an air inlet (2151) corresponding to the position of the gas dispersion hole (2131).

5. The sealing test device for fragrance products according to claim 1, characterized in that: A sealing ring (222) is fixedly installed above the inner surface of the detection chamber (22). An installation ring (221) is fixedly installed above the sealing ring (222) by bolts. A gas guide hood (223) is fixedly installed below the inner surface of the sealing ring (222). Sensor 1 (2231) and sensor 2 (2232) are symmetrically arranged on the inner walls of both sides of the gas guide hood (223).

6. The sealing test device for fragrance products according to claim 5, characterized in that: An airtight valve sleeve (23) is fixedly installed on the upper surface of the mounting ring (221) by bolts. A sealing limit ring (2211) adapted to the mounting ring (221) is provided on the lower surface of the mounting ring (221). The lower end of the airtight valve sleeve (23) is snapped into the upper end of the gas guide shroud (223). An outer hole tube (231) is fixedly installed below the inner surface of the airtight valve sleeve (23). The bottom of the outer hole tube (231) is spindle-shaped.

7. The sealing test device for fragrance products according to claim 6, characterized in that: An inner tube (232) is slidably installed inside the outer tube (231). A sealing ring (2311) adapted to the inner tube (232) is fixedly installed above the inner surface of the outer tube (231). A return spring (2312) is fixedly installed on the upper inner surface of the outer tube (231). The upper end of the return spring (2312) is fixedly connected to the lower surface of the inner tube (232).

8. The sealing test device for fragrance products according to claim 1, characterized in that: A fixed magnetic ring 1 (311) is fixedly installed in the middle of the lower surface of the fixed cover (31). A gas detection chamber (312) is provided below the fixed magnetic ring 1 (311). A fixed magnetic ring 2 (3121) is fixedly installed on the outside of the gas detection chamber (312). The upper surface of the fixed magnetic ring 2 (3121) is in contact with the lower surface of the fixed magnetic ring 1 (311). A gas detection outlet (3122) is provided at the bottom of the gas detection chamber (312). A sensor array mounting plate (313) is fixedly installed on the upper inner side of the gas detection chamber (312) by bolts. A sensor array is provided on the upper surface of the sensor array mounting plate (313).

9. A sealing test device for fragrance products according to claim 8, characterized in that: A condensing chamber (314) is fixedly installed in the middle of the lower surface of the sensor array mounting plate (313). The lower surface of the condensing chamber (314) is in contact with the inner surface of the enclosure (32). Fragrance vents (3141) are evenly distributed above the side wall of the condensing chamber (314). A condensing spiral cone (3142) is fixedly installed below the top of the condensing chamber (314).

10. A sealing test device for fragrance products according to claim 9, characterized in that: A gas exhaust branch pipe (321) is fixedly installed on the side wall of the enclosure (32). A detection gas exhaust main pipe (14) is fixedly installed above the outer surface of the detection platform (1). A corrugated pipe (141) is fixedly installed above the inner wall of the detection gas exhaust main pipe (14). One end of the corrugated pipe (141) is fixedly connected to one end of the gas exhaust branch pipe (321). A gas guide pipe (322) is fixedly installed in the middle of the lower surface of the enclosure (32). The size of the gas guide pipe (322) is adapted to the size of the airtight valve sleeve (23). A spring sealing plug (323) is provided on the outside of the gas guide pipe (322). The spring sealing plug (323) is movably installed at the bottom of the enclosure (32).

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