A device for inspecting the sealing of pharmaceutical packaging

Abstract

This invention provides a device for inspecting the sealing of pharmaceutical packaging, relating to the field of sealing inspection technology. It includes a support frame, within which an inspection structure is installed. A top plate is mounted on the top of the support frame, with a water-retaining structure on the top plate. A water-collecting structure is mounted at the bottom of the support frame. A support plate is installed within the support frame, with a snap-fit ​​fixing structure between the support plate and the support frame. A placement structure is mounted on the support plate, corresponding to the inspection structure. An exhaust structure is installed within the support plate, containing a sealing structure. An air pressure adjustment structure is mounted on the top plate. In this invention, the inspection structure installed within the support frame allows for observation of the pharmaceutical packaging during the inspection process through a transparent structure. This enables direct observation of whether the pharmaceutical packaging leaks air, and allows for simultaneous inspection of multiple pharmaceutical packages for comparison, ensuring the accuracy of the inspection results, improving the accuracy of the device, and preventing errors.

Description

Technical Field

[0001] This invention relates to the field of sealing inspection technology, specifically to a device for inspecting the sealing of pharmaceutical packaging. Background Technology

[0002] The sealing performance of pharmaceutical packaging is a key quality indicator to ensure that drugs are not affected by the external environment during storage and transportation. Pharmaceutical packaging sealing inspection uses a series of technical methods to test the integrity and airtightness of the packaging to guarantee drug quality. Current pharmaceutical packaging can be broadly divided into bagged and bottled packaging, and most are tested using the vacuum decay method. This involves placing the packaging in a vacuum chamber, drawing a vacuum, and observing the pressure recovery within the chamber. If there is a leak, the infiltration of outside air will cause an abnormal pressure recovery rate. However, for some bagged or bottled drugs, when the sealing is poor, the internal environment of the packaging will remain the same as the surrounding environment, resulting in poor vacuum testing results and errors in the final test results.

[0003] Therefore, the present invention provides a device for inspecting the sealing of pharmaceutical packaging. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a device for inspecting the sealing of pharmaceutical packaging, thereby solving the problems mentioned in the background section. This invention allows for observation of pharmaceutical packaging during the inspection process through a transparent inspection structure, enabling direct observation of whether the packaging leaks. It can also inspect multiple packages simultaneously for comparison, ensuring the accuracy of the test results, improving the device's precision, and preventing errors. Multiple support plates can be reused, eliminating the need to individually handle and place pharmaceutical packaging, thus improving the efficiency of pharmaceutical packaging inspection. Furthermore, it allows for various inspection methods for pharmaceutical packaging, enabling flexible adjustments based on the material, shape, and structure of the packaging, expanding the device's applicability. It is also suitable for pharmaceutical packaging that cannot be vacuum inspected, such as flexible packaging, further broadening its applicability and improving inspection accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for inspecting the sealing of pharmaceutical packaging, comprising a support frame, an inspection structure installed within the support frame, a top plate installed at the top of the support frame, a water storage structure installed on the top plate, a water receiving structure installed at the bottom of the support frame, a support plate installed within the support frame, a snap-fit ​​fixing structure installed between the support plate and the support frame, a placement structure installed on the support plate corresponding to the inspection structure, an exhaust structure installed within the support plate, a sealing structure installed within the exhaust structure, a pressure adjustment structure installed on the top plate corresponding to the inspection structure, a pressure-reducing structure installed within the pressure adjustment structure corresponding to the sealing structure, and a water-adding structure installed within the pressure adjustment structure corresponding to the water storage structure.

[0006] Furthermore, the inspection structure includes an inspection frame fixed inside a support frame. The inspection frame is made of glass and has multiple inspection slots. A pressure sensor is fixed inside each inspection slot. Multiple first electric cylinders are fixed inside the support frame. The output end of each first electric cylinder is fixedly connected to the top plate. The inspection slots correspond to the placement structure.

[0007] Furthermore, the air pressure adjustment structure includes multiple pistons mounted on the top plate, a sealing plate fixed on the top plate, a second electric cylinder and a telescopic rod fixed on the lower side of the sealing plate, the end of the telescopic rod being fixedly connected to the piston, the second electric cylinder corresponding to the pressing structure, the piston corresponding to the inspection groove, a sealing gasket fixed on the periphery of the piston, and the telescopic rod including a first rod body and a second rod body, the first rod body and the second rod body being slidably connected, the first rod body being fixedly connected to the sealing plate, and the second rod body being fixedly connected to the piston.

[0008] Furthermore, the water storage structure includes a water tank fixed to the top plate, with an inlet at the top and multiple outlets at the bottom. An electric valve is installed inside each outlet. The water filling structure includes a water channel within the second rod, with a water pipe fixed to the second rod. The water pipe is a flexible hose and is connected to the water channel and outlets. The water receiving structure includes a water receiving tray placed at the bottom within the support frame.

[0009] Furthermore, the pressing structure includes multiple pressing blocks fixed to the lower side of the piston, a first sliding groove is provided inside the piston, a sliding block is slidably fitted in the first sliding groove, a pressing ring is fixed on the sliding block, the output end of the second electric cylinder is fixedly connected to the sliding block, and a sealing sleeve is fixed on the periphery of the pressing ring.

[0010] Furthermore, the placement structure includes multiple placement platforms fixed to the support plate, each placement platform corresponding to an inspection slot. A placement plate is fixed on the placement platform, and multiple air holes are provided on the placement plate. A retaining ring is fixed on the placement plate, and a through groove is provided inside the placement plate. Both the retaining ring and the through groove correspond to the pressing block. Multiple lifting blocks are fixed between the placement platform and the placement plate.

[0011] Furthermore, the exhaust structure includes a first through groove opened in the support plate and a second through groove opened in the placement platform. The first through groove and the second through groove are connected. The sealing structure includes a plug block and a plug ring installed in the second through groove. The plug block and the plug ring correspond to each other. A fixing frame is fixed in the second through groove. The plug block is fixedly connected to the fixing frame. The plug ring is slidably connected to the second through groove. The plug ring corresponds to the lower pressure block.

[0012] Furthermore, multiple first springs are fixed between the fixing frame and the blocking ring, multiple first slots are opened in the second through groove, multiple second sliding grooves are opened in the blocking ring, a first insert block is installed in the second sliding groove, a second spring is fixed between the first insert block and the second sliding groove, the first insert block corresponds to the first slot, and an electromagnet is fixed in the first slot.

[0013] Furthermore, the snap-fit ​​fixing structure includes multiple second slots opened in the support frame, a third sliding groove opened in the support plate, a second insert block slidably fitted in the third sliding groove, the second insert block corresponding to the second slot, and multiple third springs fixed between the second insert block and the third sliding groove.

[0014] Furthermore, a pull plate is fixed to the lower side of the second insert block, and multiple locking blocks are fixed on the second insert block. Multiple first locking slots and multiple second locking slots are opened in the third sliding groove, and the locking blocks correspond to the first locking slots and the second locking slots.

[0015] The beneficial effects of this invention are:

[0016] 1. An inspection structure is installed inside the support frame. The transparent inspection structure allows for observation of the drug packaging during the inspection process, enabling direct observation of whether the drug packaging is leaking. Multiple drug packages can be inspected at the same time for comparison, ensuring the accuracy of the inspection results, improving the accuracy of the device, and preventing errors.

[0017] 2. A snap-fit ​​fixing structure is installed between the support plate and the support frame to facilitate the disassembly and installation of the support plate. This allows multiple drug packages to be placed on the placement structure, and multiple support plates can be used in a cyclical manner, eliminating the need to pick up and place drug packages one by one, thereby improving the work efficiency of drug packaging inspection.

[0018] 3. An air pressure adjustment structure is installed on the top plate, and a pressure-reducing structure is installed inside the air pressure adjustment structure. By moving the air pressure adjustment structure, the pressure inside the inspection structure can be increased or decreased, thereby simulating various pressure environments. This allows for multiple inspection methods for drug packaging. The inspection method can be flexibly adjusted according to the different materials, shapes, and structures of the drug packaging, expanding the applicability of the device. For bagged drug packaging, pressure can be reduced and then applied to detect air leaks, ensuring the accuracy of the test results, preventing errors in the test, and improving the preservation quality of the medicine.

[0019] 4. Install a water storage structure on the top plate and a water filling structure inside the air pressure adjustment structure. This allows the device to not only detect air pressure but also check for air bubbles by adding water to verify the seal. This makes the device suitable for pharmaceutical packaging that cannot be vacuum checked, such as flexible packaging, thus expanding the device's applicability and improving the accuracy of the inspection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a pharmaceutical packaging sealing inspection device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of a pharmaceutical packaging sealing inspection device according to the present invention.

[0022] Figure 3 This is a schematic diagram of the assembly three-dimensional structure of the support frame and support plate in a drug packaging sealing inspection device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the assembly three-dimensional structure of a support plate in a pharmaceutical packaging sealing inspection device according to the present invention;

[0024] Figure 5 This is a schematic diagram of the assembly three-dimensional structure of a support plate and a second insert block in a drug packaging sealing inspection device according to the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the piston assembly in a pharmaceutical packaging sealing inspection device according to the present invention.

[0026] Figure 7 This is a schematic diagram of the assembly cross-sectional structure of a support plate in a pharmaceutical packaging sealing inspection device according to the present invention.

[0027] Figure 8 This is a schematic diagram of the assembly cross-sectional structure of a piston in a pharmaceutical packaging sealing inspection device according to the present invention.

[0028] Figure 9This is a schematic diagram of the assembly cross-sectional structure of a drug packaging sealing inspection device when the placement platform is open.

[0029] Figure 10 This is a schematic diagram of the assembly cross-sectional structure of a placement platform in a drug packaging sealing inspection device according to the present invention.

[0030] In the diagram: 1. Support frame; 2. Water tray; 3. Water tank; 4. First electric cylinder; 5. Top plate; 6. Sealing plate; 7. Second electric cylinder; 8. Piston; 9. Sealing gasket; 10. Telescopic rod; 11. First rod body; 12. Second rod body; 13. Water inlet; 14. Water outlet; 15. Electric valve; 16. Water pipe; 17. Water channel; 18. Lower pressure ring; 19. First slide groove; 20. Sliding block; 21. Sealing sleeve; 22. Lower pressure block; 23. Support plate; 24. First slot; 25. First insert block; 26. Second slide groove; 7. First slot; 28. Second slot; 29. ​​Locking block; 30. First spring; 31. Pull plate; 32. First through slot; 33. Placement platform; 34. Placement plate; 35. Lifting block; 36. Air hole; 37. Retaining ring; 38. Fixing bracket; 39. Blocking block; 40. Blocking ring; 41. Second slot; 42. Second insertion block; 43. Third slide groove; 44. Electromagnet; 45. Second spring; 46. Third spring; 47. Inspection rack; 48. Inspection slot; 49. Air pressure sensor; 50. Through slot; 51. Second through slot. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Please see Figures 1 to 10 This invention provides a technical solution: a device for inspecting the sealing of pharmaceutical packaging, comprising a support frame 1, an inspection structure installed inside the support frame 1, a top plate 5 installed on the top of the support frame 1, a water storage structure installed on the top plate 5, a water receiving structure installed at the bottom inside the support frame 1, a support plate 23 installed inside the support frame 1, a snap-fit ​​fixing structure installed between the support plate 23 and the support frame 1, a placement structure installed on the support plate 23 corresponding to the inspection structure, an exhaust structure installed inside the support plate 23, a sealing structure installed inside the exhaust structure, an air pressure adjustment structure installed on the top plate 5 corresponding to the inspection structure, a pressing structure installed inside the air pressure adjustment structure corresponding to the sealing structure, and a water filling structure installed inside the air pressure adjustment structure corresponding to the water storage structure.

[0033] In this embodiment, the inspection structure includes an inspection frame 47 fixed in the support frame 1. The inspection frame 47 is made of glass material and has multiple inspection slots 48. A pressure sensor 49 is fixed in the inspection slot 48. Multiple first electric cylinders 4 are fixed in the support frame 1. The output end of the first electric cylinder 4 is fixedly connected to the top plate 5. The inspection slots 48 correspond to the placement structure.

[0034] Specifically, during inspection, the medicine packaging is placed in the inspection rack 47, and then the first electric cylinder 4 is activated, causing the top plate 5 to move up and down, thereby changing the air pressure in the inspection tank 48. The air pressure sensor 49 detects the air pressure change in the inspection tank 48 to determine whether the medicine packaging is leaking, thus inspecting the airtightness of the medicine packaging. Multiple medicine packages can be inspected at the same time, allowing for comparison of air pressure changes in different inspection tanks 48, resulting in better inspection results. Different pressures can also be applied to different inspection tanks 48 to inspect changes in medicine packaging under different constant air pressures, thereby improving inspection efficiency.

[0035] The air pressure adjustment structure includes multiple pistons 8 mounted on the top plate 5. A sealing plate 6 is fixed on the top plate 5. A second electric cylinder 7 and a telescopic rod 10 are fixed on the lower side of the sealing plate 6. The end of the telescopic rod 10 is fixedly connected to the pistons 8. The second electric cylinder 7 corresponds to the pressing structure. The pistons 8 correspond to the inspection groove 48. A sealing gasket 9 is fixed on the periphery of the pistons 8. The telescopic rod 10 includes a first rod body 11 and a second rod body 12. The first rod body 11 and the second rod body 12 are slidably connected. The first rod body 11 is fixedly connected to the sealing plate 6, and the second rod body 12 is fixedly connected to the pistons 8.

[0036] Specifically, when the airtightness of the medicine packaging needs to be tested, the first electric cylinder 4 moves the top plate 5, thereby driving the piston 8 into the inspection tank 48. When the inspection tank 48 is in a sealed state, for bagged medicines, the piston 8 moves downward to apply pressure. At this time, if the medicine packaging is well sealed, the volume of the medicine packaging will remain basically unchanged or decrease. If the medicine packaging is poorly sealed, the packaging will bulge, and the air pressure change in the inspection tank 48 will also be different. When the piston 8 moves upward, it is in a depressurization state, that is, simulating vacuuming for testing. At this time, if the medicine packaging is well sealed, the medicine packaging will bulge. The size or volume remains the same. If the drug packaging is poorly sealed, the packaging becomes smaller. This allows for selective pressure testing of the drug packaging as needed, making the device more flexible to use. During testing, the second electric cylinder 7 can drive the piston 8 to move independently, thus achieving different pressures in different testing tanks 48. This allows for testing the maximum pressure that the drug packaging can withstand. As a result, the device is not limited to testing the sealing performance of drug packaging. It can also conduct comparative experiments based on different pressures, eliminating the need for individual adjustments and greatly improving the testing efficiency of the device.

[0037] The water storage structure includes a water tank 3 fixed on the top plate 5. The top of the water tank 3 has a water inlet 13 and the bottom of the water tank 3 has multiple water outlets 14. An electric valve 15 is installed in the water outlet 14. The water filling structure includes a water channel 17 opened in the second rod 12. A water pipe 16 is fixed on the second rod 12. The water pipe 16 is a flexible hose and is connected to the water channel 17 and the water outlets 14. The water receiving structure includes a water receiving tray 2 placed at the bottom of the support frame 1.

[0038] Specifically, the electric valve 15 can be activated while the inspection tank 48 is sealed, allowing water in the water tank 3 to flow naturally into the inspection tank 48 through the water pipe 16 and water channel 17. At this time, it can be observed through the transparent inspection frame 47 whether air bubbles are generated in the inspection tank 48. This allows for the sealing inspection of drug packaging that cannot be vacuum tested, expanding the applicability of the device. Furthermore, for drug packaging that can be vacuum tested, multiple inspection methods can be performed simultaneously, thereby ensuring the accuracy of the inspection results, preventing errors, and ensuring the quality of drug storage.

[0039] The pressing structure includes multiple pressing blocks 22 fixed to the lower side of the piston 8. A first sliding groove 19 is provided in the piston 8. A sliding block 20 is slidably fitted in the first sliding groove 19. A pressing ring 18 is fixed on the sliding block 20. The output end of the second electric cylinder 7 is fixedly connected to the sliding block 20. A sealing sleeve 21 is fixed on the periphery of the pressing ring 18.

[0040] Specifically, for bagged medicines, when the inspection tank 48 is sealed and under negative pressure, the second electric cylinder 7 is activated to drive the lower pressure block 22 to slide downward. At this time, the position of the piston 8 is limited by the length of the telescopic rod 10, thereby pressing down the lower pressure block 22 to squeeze the food packaging. The change in air pressure in the inspection tank 48 determines whether the food packaging is leaking, thus achieving a better inspection effect. At the same time, for some food packaging that leaks slowly, physical assistance through downward pressure can accelerate the leakage efficiency, thereby making the air pressure change rapidly in a short time, which is convenient for observation and prevents errors in judgment caused by slow air pressure changes.

[0041] The placement structure includes multiple placement platforms 33 fixed to the support plate 23, each corresponding to the inspection slot 48. A placement plate 34 is fixed to each placement platform 33, and multiple air holes 36 are provided on the placement plate 34. A retaining ring 37 is fixed to the placement plate 34, and a through groove 50 is provided inside the placement plate 34. Both the retaining ring 37 and the through groove 50 correspond to the lower pressure block 22. Multiple lifting blocks 35 are fixed between the placement platforms 33 and the placement plate 34. The venting structure includes a first through groove 32 opened in the support plate 23 and a second through groove 51 opened in the placement platform 33. The first through groove 32 and the second through groove 51 are connected. The sealing structure includes a device installed in the second through groove 51. The block 39 and the blocking ring 40 are respectively connected. A fixing frame 38 is fixed in the second through groove 51. The block 39 and the fixing frame 38 are fixedly connected. The blocking ring 40 is slidably connected to the second through groove 51. The blocking ring 40 is respectively connected to the lower pressing block 22. A plurality of first springs 30 are fixed between the fixing frame 38 and the blocking ring 40. A plurality of first slots 24 are opened in the second through groove 51. A plurality of second sliding grooves 26 are opened in the blocking ring 40. A first insert 25 is installed in the second sliding groove 26. A second spring 45 is fixed between the first insert 25 and the second sliding groove 26. The first insert 25 is respectively connected to the first slot 24. An electromagnet 44 is fixed in the first slot 24.

[0042] Specifically, during inspection, the medicine packaging is placed on the placement plate 34, and then the support plate 23 is installed. The first electric cylinder 4 is activated, causing the piston 8 to press down, which in turn drives the pressing block 22 to pass through the retaining ring 37 and the through groove 50 to press down the blocking ring 40. The first spring 30 is compressed, so that the blocking rings 40 come into contact with each other, thus sealing the seal. If it is necessary to maintain the seal, the electromagnet 44 is activated, which attracts the first insert 25, causing the first insert 25 to enter the first slot 24. The first insert 25 and the first slot 24 are engaged, and the second spring 45 is stretched, which fixes the position of the blocking ring 40, thus maintaining the seal and allowing the inspection to proceed. When it is necessary to connect with the outside, the inspection groove 48 is connected to the outside through the air hole 36, the first through groove 32 and the second through groove 51, which facilitates the sliding of the piston 8. After water addition inspection, the water can be drained into the water receiving tray 2 for the next inspection. The water can also be recycled to reduce water waste.

[0043] The snap-fit ​​fixing structure includes multiple second slots 41 opened in the support frame 1, a third slide groove 43 opened in the support plate 23, a second insert 42 slidably fitted in the third slide groove 43, the second insert 42 corresponding to the second slots 41, multiple third springs 46 fixed between the second insert 42 and the third slide groove 43, a pull plate 31 fixed to the lower side of the second insert 42, multiple locking blocks 29 fixed on the second insert 42, multiple first locking slots 27 and multiple second locking slots 28 opened in the third slide groove 43, the locking blocks 29 corresponding to the first locking slots 27 and the second locking slots 28, and the locking blocks 29 are made of elastic material.

[0044] Specifically, when the support plate 23 needs to be disassembled, the pull plate 31 is manually pressed, causing the pull plate 31 to slide the second insert block 42, thereby separating the locking block 29 from the first slot 27, until the second insert block 42 completely slides into the third slide groove 43. At this time, the locking block 29 enters the second slot 28, and the locking block 29 and the second slot 28 are engaged. The second insert block 42 and the second slot 41 are no longer engaged, and the support plate 23 can be disassembled. Then another support plate 23 with a medicine package to be tested can be installed, which can realize continuous operation and can pick up and place multiple medicine packages at one time, greatly improving work efficiency.

[0045] Workflow: Place the medicine packaging on the placement plate 34, then install the support plate 23. Activate the first electric cylinder 4 to press down the piston 8, thereby driving the pressing block 22 through the retaining ring 37 and the through groove 50 to press down on the blocking ring 40. The first spring 30 is compressed, causing the blocking rings 40 to contact each other, thus sealing. If maintaining the seal is required, activate the electromagnet 44 to attract the first insert 25, causing it to enter the first slot 24. The first insert 25 and the first slot 24 are engaged, and the second spring 45 is stretched. The position of the plugging ring 40 can be fixed to maintain a sealed state. For pharmaceutical packaging requiring pressure testing, after fully extending the piston 8, the first electric cylinder 4 is activated to move the piston 8 downwards, thus applying pressure. If the pharmaceutical packaging is well-sealed, its volume will remain essentially unchanged or decrease. If the packaging is poorly sealed, it will bulge, and the air pressure change within the testing tank 48 will also vary. For pharmaceutical packaging requiring depressurization testing, the piston 8 is pulled upwards after sealing to reduce the air pressure within the testing tank 48, simulating a vacuum state and achieving better testing results. If the medicine packaging is properly sealed, it will bulge or remain the same size; if the seal is poor, it will shrink. Alternatively, the second electric cylinder 7 can be activated to slide the lower pressure block 22 downwards. The position of the piston 8 is limited by the length of the telescopic rod 10, thus pressing down the lower pressure block 22 to squeeze the food packaging. Changes in air pressure within the inspection tank 48 determine if the food packaging is leaking. The electric valve 15 can also be activated to allow water in the water tank 3 to flow naturally into the inspection tank 48 through the water pipe 16 and water channel 17. At this time, the presence of air bubbles in the inspection tank 48 can be observed through the transparent inspection frame 47. The system can perform sealing tests on drug packaging that cannot be vacuum tested. After the test is completed, manually press the pull plate 31 to make the pull plate 31 drive the second insert block 42 to slide, thereby separating the locking block 29 from the first locking groove 27 until the second insert block 42 slides completely into the third sliding groove 43. At this time, the locking block 29 enters the second locking groove 28, and the locking block 29 and the second locking groove 28 are engaged. The second insert block 42 and the second slot 41 are no longer engaged, and the support plate 23 can be removed. Then, another support plate 23 containing the drug packaging to be tested can be installed, thus realizing the continuous operation.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for the inspection of the seal of a pharmaceutical package comprising a support frame (1), characterized in that, The support frame (1) is provided with an inspection structure, the top of the support frame (1) is provided with a top plate (5), the top plate (5) is provided with a water storage structure, the bottom of the support frame (1) is provided with a water receiving structure, the support frame (1) is provided with a supporting plate (23), the supporting plate (23) and the support frame (1) are provided with a clamping fixing structure, the supporting plate (23) is provided with a placing structure, the placing structure corresponds to the inspection structure, the supporting plate (23) is provided with an exhaust structure, the exhaust structure is provided with a sealing structure, the top plate (5) is provided with a gas pressure adjusting structure, the gas pressure adjusting structure corresponds to the inspection structure, the gas pressure adjusting structure is provided with a pressing structure, the pressing structure corresponds to the sealing structure, the gas pressure adjusting structure is provided with a water adding structure, the water adding structure corresponds to the water storage structure, the inspection structure comprises an inspection frame (47) fixed in the support frame (1), the inspection frame (47) is made of glass material, a plurality of inspection grooves (48) are formed in the inspection frame (47), a gas pressure sensor (49) is fixed in the inspection groove (48), a plurality of first electric cylinders (4) are fixed in the support frame (1), the output end of the first electric cylinder (4) is fixedly connected with the top plate (5), the inspection groove (48) corresponds to the placing structure, the gas pressure adjusting structure comprises a plurality of pistons (8) arranged on the top plate (5), the top plate (5) is fixedly connected with a sealing plate (6), the lower side of the sealing plate (6) is fixedly connected with a second electric cylinder (7) and an extension rod (10), the end of the extension rod (10) is fixedly connected with the piston (8), the second electric cylinder (7) corresponds to the pressing structure, the piston (8) corresponds to the inspection groove (48), the periphery of the piston (8) is fixedly connected with a sealing gasket (9), the extension rod (10) comprises a first rod body (11) and a second rod body (12), the first rod body (11) and the second rod body (12) are slidably connected, the first rod body (11) is fixedly connected with the sealing plate (6), the second rod body (12) is fixedly connected with the piston (8), the water storage structure comprises a water tank (3) fixed on the top plate (5), the top of the water tank (3) is provided with a water inlet (13), the bottom of the water tank (3) is provided with a plurality of water outlets (14), the water outlet (14) is provided with an electric valve (15), the water adding structure comprises a water channel (17) formed in the second rod body (12), the second rod body (12) is fixedly connected with a water pipe (16), the water pipe (16) is a hose structure, the water pipe (16) is connected with the water channel (17) and the water outlet (14), the water receiving structure comprises a water receiving disc (2) arranged at the bottom of the support frame (1), the placing structure comprises a plurality of placing tables (33) fixed on the supporting plate (23), the placing table (33) corresponds to the inspection groove (48), the placing table (33) is fixedly connected with a placing plate (34), a plurality of air holes (36) are formed in the placing plate (34), the placing plate (34) is fixedly connected with a blocking ring (37), the placing plate (34) is provided with a through groove (50), the blocking ring (37) and the through groove (50) correspond to the pressing block (22).A plurality of lifting blocks (35) are fixed between the placing table (33) and the placing plate (34), the exhaust structure comprises a first through groove (32) formed in the supporting plate (23) and a second through groove (51) formed in the placing table (33), the first through groove (32) and the second through groove (51) are communicated, the sealing structure comprises a blocking block (39) and a blocking ring (40) installed in the second through groove (51), the blocking block (39) corresponds to the blocking ring (40), a fixing frame (38) is fixed in the second through groove (51), the blocking block (39) is fixedly connected with the fixing frame (38), the blocking ring (40) is slidably connected with the second through groove (51), and the blocking ring (40) corresponds to the lower pressing block (22).

2. The apparatus for inspecting a seal of a pharmaceutical package according to claim 1, wherein: The lower pressing structure comprises a plurality of lower pressing blocks (22) fixed to the lower side of the piston (8), a first sliding groove (19) is formed in the piston (8), a sliding block (20) is slidingly fitted in the first sliding groove (19), a lower pressing ring (18) is fixed to the sliding block (20), the output end of the second electric cylinder (7) is fixedly connected with the sliding block (20), and the peripheral side of the lower pressing ring (18) is fixedly connected with a sealing sleeve (21).

3. The apparatus for inspecting a seal of a pharmaceutical package according to claim 1, wherein: A plurality of first springs (30) are fixed between the fixing frame (38) and the blocking ring (40), a plurality of first insertion grooves (24) are formed in the second through groove (51), a plurality of second sliding grooves (26) are formed in the blocking ring (40), a first insertion block (25) is arranged in the second sliding groove (26), a second spring (45) is fixed between the first insertion block (25) and the second sliding groove (26), the first insertion block (25) corresponds to the first insertion groove (24), and an electromagnet (44) is fixed in the first insertion groove (24).

4. The apparatus for inspecting a seal of a pharmaceutical package according to claim 1, wherein: The clamping fixing structure comprises a plurality of second insertion grooves (41) formed in the supporting frame (1), a third sliding groove (43) is formed in the supporting plate (23), a second insertion block (42) is slidingly fitted in the third sliding groove (43), the second insertion block (42) corresponds to the second insertion groove (41), and a plurality of third springs (46) are fixed between the second insertion block (42) and the third sliding groove (43).

5. The apparatus for inspecting a seal of a pharmaceutical package according to claim 4, wherein: The lower side of the second insertion block (42) is fixedly connected with a pull plate (31), a plurality of clamping blocks (29) are fixed to the upper side of the second insertion block (42), a plurality of first clamping grooves (27) and a plurality of second clamping grooves (28) are formed in the third sliding groove (43), and the clamping blocks (29) correspond to the first clamping grooves (27) and the second clamping grooves (28).

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