A powder-liquid double chamber bag sealing detection device

Abstract

The invention relates to the technical field of powder-liquid double-chamber bag detection, and discloses a powder-liquid double-chamber bag sealing detection device, comprising a detection box, a box cover is hingedly provided on the top of the detection box, a base for placing the powder-liquid double-chamber bag is arranged in the detection box, a pressure-supplying mechanism for applying pressure to the powder-liquid double-chamber bag on the base is provided on the box cover, a detection tray is provided at the bottom of the base, a waste liquid collecting mechanism, a drying mechanism and a cleaning mechanism are arranged in the detection box, the detection tray detects leaked liquid through a detector, the waste liquid collecting mechanism collects leaked liquid, the cleaning mechanism cleans the base and the waste liquid collecting mechanism, the drying mechanism cleans the base and the waste liquid collecting mechanism and then performs hot air drying, the device realizes multiple detection work of the powder-liquid double-chamber bag, including sealing detection of the finished powder-liquid double-chamber bag, sealing and penetration pressure detection of virtual welds, destructive detection of powder bags and liquid bags in different areas, and penetration pressure detection of virtual welds under simulated transportation conditions, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of powder-liquid double-chamber bag detection, and in particular to a powder-liquid double-chamber bag sealing detection device. Background Art

[0002] The powder-liquid double-chamber bag is an innovative pharmaceutical packaging technology. It packages the drug powder and the injection solvent in two chambers of the same bag, separated by a virtual weld in the middle. When in use, just squeeze the bag gently, and the pressure of the liquid chamber will flush the virtual weld open, allowing the two chambers to connect, and the powder and solvent will mix and dissolve, and then the infusion can be carried out. This design does not require a special preparation site, and realizes fully enclosed aseptic preparation, ready for preparation and use, simplifies the preparation process, and quickly responds to emergencies. Therefore, it is widely recognized in clinical practice.

[0003] The powder-liquid double-chamber bag needs to be tested for its sealing after processing. Existing testing equipment applies positive pressure or generates negative pressure to the double-chamber bag, and detects its sealing through changes in pressure values. A powder-liquid double-chamber bag aluminum film welding sealing leak detection device published in a Chinese patent (publication number: CN110044552B) adopts tracer gas detection. By filling the powder-liquid double-chamber bag with tracer gas and applying pressure to it, the mass spectrometer leak detection mechanism detects the tracer gas leaked after being pressurized to determine the sealing. Although the invention can accurately detect the sealing of the powder-liquid double-chamber bag, it can only be tested before filling. The filling and subsequent sealing stages in actual production will also affect the final sealing. It is impossible to test the sealing of the finished powder-liquid double-chamber bag, the sealing of the virtual weld and the penetration pressure, and there are certain limitations. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a powder-liquid double-chamber bag sealing detection device.

[0005] In order to solve the above technical problems, the present invention provides a technical solution: a powder-liquid double-chamber bag sealing detection device, comprising a detection box, a box cover is hingedly provided on the top of the detection box, a base for placing the powder-liquid double-chamber bag is provided in the detection box, and a pressure mechanism is provided on the box cover, and the pressure mechanism applies pressure to the powder-liquid double-chamber bag on the base;

[0006] The base is provided with chamber 1 for placing the liquid bag and chamber 2 for placing the powder bag, each of chamber 1 and chamber 2 is provided with a humidity sensor, and the sides of chamber 1 and chamber 2 are provided with a plurality of liquid leakage grooves, and the base is provided with a surrounding plate outside the liquid leakage groove;

[0007] A detection plate is provided at the bottom of the base, the detection plate includes a liquid bag leakage detection area and a powder bag leakage detection area, the liquid bag leakage detection area and the powder bag leakage detection area are both provided with a plurality of detectors, the detectors include an anode end and a cathode end extending into the leakage groove, and the leakage groove (35) is provided with a hydrophobic coating in the area between the anode end and the cathode end;

[0008] The pressure supply mechanism includes a liquid bag position pressure supply device, a partition and a powder bag position pressure supply device. The liquid bag position pressure supply device and the powder bag position pressure supply device apply pressure to the liquid bag and the powder bag respectively, and the partition applies pressure to the virtual weld.

[0009] As an improvement: the liquid bag position pressure device and the powder bag position pressure device both include an electric push rod 2, a pressure head is provided at the output end of the electric push rod 2, the pressure head includes a transmission plate and a pressure plate, the top of the transmission plate is connected to the output end of the electric push rod 2, a pressure sensor is provided at the bottom, a plurality of sliding columns that slide in cooperation with the side through holes of the transmission plate are provided on the pressure plate, a spring connected to the pressure sensor is provided on the pressure plate, and the liquid bag and the powder bag are separated and pressurized through the liquid bag position pressure device and the powder bag position pressure device.

[0010] As an improvement: the partition includes an electric push rod three and a partition plate, the output end of the electric push rod three is connected to the partition plate, the partition plate is located between the two pressure heads, and a partition platform that cooperates with the partition plate is provided on the base at the position of the virtual weld. The partition plate and the partition platform are respectively provided with sealing strips one and two in the grooves at the ends, and the virtual weld is compacted by the partition.

[0011] As an improvement: the base is hingedly provided with a folding plate at one chamber, a motor for driving the folding plate to rotate is provided at the bottom of the base, a clamping table for clamping with the infusion port is provided on the folding plate, a positioning column for plugging with the hanging hole is provided on the second chamber, and a stop table for cooperating with the folding plate is provided on the second chamber, so that the powder-liquid double-chamber bag can be folded by the folding plate.

[0012] As an improvement: a waste liquid collection mechanism is provided in the detection box, and the waste liquid collection mechanism includes a collection table and a waste liquid box. The collection table is installed on both sides of the base, and a plurality of drainage holes connected to the leakage trough are provided on the collection table. A collection pipe connected to the drainage holes is provided at the rear end of the collection table, and the ends of the two collection pipes are connected to a collecting pipe. The collecting pipe is provided with a drainage pipe extending into the waste liquid box, and the drainage pipe is provided with an electromagnetic valve, so that the waste liquid is collected by the waste liquid collection mechanism.

[0013] As an improvement: a cleaning mechanism is provided in the detection box, the cleaning mechanism includes a water tank and a ring pipe, a water pump connected to the ring pipe is provided on the water tank, a placement groove for placing the ring pipe is provided on the enclosure, and a plurality of liquid spray ports are provided on the ring pipe. The cleaning mechanism is used to clean the chamber and the waste liquid channel.

[0014] As an improvement: a drying mechanism is provided in the detection box, the drying mechanism includes a dust removal box, a hot air blower is provided on the dust removal box, an air duct is provided at the output end of the hot air blower, a return bend is connected to the end of the air duct, the end of the return bend is connected to a collecting pipe downward, and the waste liquid channel and chamber after cleaning are quickly dried by the drying mechanism.

[0015] As an improvement: the box cover is provided with a fixing platform for fixing the pressure supply mechanism, wing plates are provided on both sides of the box cover, an electric push rod is hingedly provided on the detection box, the output end of the electric push rod is hingedly connected to the wing plate, and a splash-proof cover cooperating with the enclosure is provided at the bottom of the box cover. The box cover and the splash-proof cover are elastically connected to realize automatic opening and closing of the box cover.

[0016] Compared with the prior art, the invention has the following beneficial effects: the device realizes multiple detection work of powder-liquid double chamber bag, including the sealing detection of powder-liquid double chamber bag finished product, the sealing and penetration pressure detection of virtual weld, the destructive detection of powder bag and liquid bag partition and the penetration pressure detection of virtual weld under simulated transportation state, and has strong practicality. Specifically:

[0017] 1. The pressure mechanism is equipped with two sets of pressure devices, which apply pressure to the liquid bag position and the powder bag position respectively. The electric push rod has a self-locking structure, which can maintain a constant pressure. The liquid bag and the powder bag are isolated through the partition, and pressure is applied to them respectively. The sealing of the two bag positions is tested separately. The pressure head structure design can detect the pressure peak value;

[0018] 2. The base structure design can realize the positioning of the powder-liquid double chamber bag. Multiple leakage grooves on the side cooperate with the detector. While detecting the leakage problem, the leakage point can be roughly located. Through the analysis of most leakage points, the problem of hot melt equipment can be confirmed;

[0019] 3. Through the waste liquid collection mechanism, cleaning mechanism and drying mechanism, the waste liquid collection, base and waste liquid conveying path cleaning and reverse path drying after destructive testing are realized, so that the next test can be carried out quickly to avoid the formation of high ion scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0021] Figure 2 The internal structure of a powder-liquid double chamber bag sealing detection device of the present invention is shown in FIG. Figure 1 .

[0022] Figure 3 The internal structure of a powder-liquid double chamber bag sealing detection device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 4 It is a structural schematic diagram of a box cover of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0024] Figure 5 It is a structural schematic diagram of a pressure supply mechanism of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0025] Figure 6 It is an exploded view of a liquid bag position pressure feeder of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0026] Figure 7 It is a structural schematic diagram of a base and a waste liquid collection mechanism of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0027] Figure 8 It is a structural schematic diagram of a base of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0028] Fig. 9 It is a cross-sectional view of a base of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0029] Fig.10 It is a structural schematic diagram of a detection disk of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0030] Fig.11 The invention discloses a schematic structural diagram of a waste liquid collecting mechanism and a drying mechanism of a powder-liquid double-chamber bag sealing property detection device.

[0031] Fig.12 It is a structural schematic diagram of a cleaning mechanism of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0032] Fig.13 It is a structural schematic diagram of a powder-liquid double-chamber bag of a powder-liquid double-chamber bag sealing detection device of the present invention.

[0033] As shown in the figure: 1. Test box; 2. Box cover; 3. Base; 4. Test plate; 5. Waste liquid collection mechanism; 6. Drying mechanism; 7. Cleaning mechanism; 8. Powder-liquid double chamber bag; 11. Control panel; 12. Water tank chamber; 13. Waste liquid chamber; 14. Support beam; 21. Protective cover; 22. Fixed platform; 23. Pressure mechanism; 24. Liquid bag position pressure device; 241. Electric push rod 2; 242. Pressure head; 2 43, transmission plate; 244, pressure sensor; 245, pressure plate; 246, slide column; 247, spring; 25, partition; 251, electric push rod three; 252, partition plate; 253, sealing strip one; 26, powder bag position pressure device; 27, splash cover; 271, slide hole; 28, wing plate; 29, electric push rod one; 31, chamber one; 311, humidity sensor; 32, chamber two; 33. Folding plate; 331. Card table; 332. Groove wheel one; 34. Positioning column; 35. Leakage groove; 36. Motor; 361. Groove wheel two; 37. Enclosure; 371. Placement groove; 38. Partition table; 381. Sealing strip two; 39. Arrival table; 41. Liquid bag leakage detection area; 42. Powder bag leakage detection area; 43. Detector; 44. Anode end; 45. Cathode end; 51. Collection table; 511. Drain hole; 52. Collecting pipe; 53. Collecting pipe; 54. Drain pipe; 55. Solenoid valve; 56. Waste liquid tank; 61. Dust removal box; 62. Hot air blower; 63. Air duct; 64. Elbow pipe; 71. Water tank; 72. Water pump; 73. Ring pipe; 74. Liquid spray port; 81. Liquid bag; 82. Powder bag; 83. Infusion port; 84. Hanging hole; 85. Hot melt edge sealing; 86. Virtual weld. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Fig. 9 and attached Fig.13 As shown, a powder-liquid double-chamber bag sealing detection device comprises a detection box 1, a box cover 2 is hingedly provided on the top of the detection box 1, a base 3 for placing the powder-liquid double-chamber bag 8 is provided in the detection box 1, a pressure supply mechanism 23 for applying pressure to the powder-liquid double-chamber bag 8 on the base 3 is provided on the box cover 2, a detection tray 4 is provided at the bottom of the base 3, a waste liquid collecting mechanism 5, a drying mechanism 6 and a cleaning mechanism 7 are provided in the detection box 1, the detection tray 4 detects leaking liquid through a detector 43, the waste liquid collecting mechanism 5 collects leaking liquid, the cleaning mechanism 7 cleans the base 3 and the waste liquid collecting mechanism 5, the drying mechanism 6 cleans the base 3 and the waste liquid collecting mechanism 5 and then dries them with hot air, a control screen 11 is provided at the front end of the detection box 1, and a processor is provided inside.

[0036] Combined with Figure 2 , Attachment Figure 7 , Attachment Figure 8 and attached Fig.13 As shown, the base 3 is provided with a chamber 1 31 for placing a liquid bag 81 and a chamber 2 32 for placing a powder bag 82, and the chamber 1 31 and the chamber 2 32 are provided with humidity sensors 311. The detection box 1 is provided with a support beam 14 connected to the base 3 below the chamber 1 31 and the chamber 2 32, and a plurality of leakage grooves 35 are provided on the sides of the chamber 1 31 and the chamber 2 32. The base 3 is provided with a surrounding plate 37 on the outside of the leakage groove 35. The base 3 is hingedly provided with a folding plate 33 at the chamber 1 31, and the folding plate 33 is located at the liquid bag 81. The folding plate 33 is provided with a motor 36 for driving the folding plate 33 to rotate at the bottom of the base 3, and a groove wheel 361 is provided at the output end of the motor 36. The rotating shaft of the folding plate 33 passes through a through hole on the side of the base 3 and is provided with a groove wheel 332. The groove wheel 332 cooperates with the groove wheel 361 through a belt drive. The folding plate 33 is provided with a card table 331 that is engaged with the infusion port 83, and the chamber 32 is provided with a positioning column 34 that is plugged into the hanging hole 84. The chamber 32 is provided with a stop table 39 that cooperates with the folding plate 33.

[0037] Working principle of base 3: Place the powder-liquid dual-chamber bag 8 on base 3, clamp the infusion port 83 on the clamping table 331, and insert the positioning column 34 into the hanging hole 84. At this time, the liquid bag 81 is in chamber 1 31, and the powder bag 82 is in chamber 2 32. The pressure mechanism 23 is used to apply pressure to the powder-liquid dual-chamber bag 8 to perform a sealing test. The humidity sensor 311 is used to detect the humidity change in the chamber under the pressure state, and cooperate with the value change of the pressure sensor 244 to judge whether the powder-liquid dual-chamber bag 8 is leaking. The bag 8 is sealed. When leakage occurs, the liquid flows into the adjacent leakage groove 35, and the liquid leakage is detected by the detector 43. The motor 36 drives the second groove wheel 361 to rotate. The groove wheel 1 332 cooperates with the second groove wheel 361 through belt transmission to drive the folding plate 33 to rotate, so that the folding plate 33 drives the liquid bag 81 to fold onto the powder bag 82. The folding plate 33 ends after contacting the platform 39. At this time, the powder-liquid double-chamber bag 8 is in a folded state, and the surrounding plate 37 prevents the liquid from splashing everywhere.

[0038] Combined with Fig. 9 and attached Fig.10 As shown, a detection plate 4 is provided at the bottom of the base 3, and the detection plate 4 includes a liquid bag leakage detection area 41 and a powder bag leakage detection area 42. The liquid bag leakage detection area 41 and the powder bag leakage detection area 42 are both provided with a plurality of detectors 43. The detectors 43 include an anode end 44 and a cathode end 45 extending into the leakage groove 35. The leakage groove 35 is provided with a hydrophobic coating in the area between the anode end 44 and the cathode end 45.

[0039] Working principle of the detection disk 4: When the detector 43 adopts conductive detection, after the leaked medicine liquid flows into the leakage groove 35, when passing through the anode end 44 and the cathode end 45, the anode end 44 and the cathode end 45 are connected, so that the circuit is connected, and the leakage and the leakage position are judged according to the circuit connection state. When the detector 43 adopts capacitive detection, the medicine liquid will cause the capacitance between the anode end 44 and the cathode end 45 to change, so as to judge the leakage and the leakage position. Since the medicine liquid usually contains various ions, such as sodium, potassium, calcium, magnesium and chloride ions, these ions will increase the conductivity of the solution, thereby ensuring the success rate of detection. The hydrophobic coating prevents the medicine liquid from being retained between the anode end 44 and the cathode end 45 to avoid affecting subsequent detection.

[0040] Combined with Figure 5 , Attachment Figure 6 and attached Fig.13 As shown, the pressure mechanism 23 includes a liquid bag position pressure device 24, a partition 25 and a powder bag position pressure device 26. The liquid bag position pressure device 24 and the powder bag position pressure device 26 apply pressure to the liquid bag 81 and the powder bag 82 respectively, and the partition 25 applies pressure to the virtual weld 86. The liquid bag position pressure device 24 and the powder bag position pressure device 26 both include an electric push rod 241. A pressure head 242 is provided at the output end of the electric push rod 241. The pressure head 242 includes a transmission plate 243 and a pressure plate 245. The top of the transmission plate 243 is connected to the output end of the electric push rod 241, and a pressure sensor 244 is provided at the bottom. The pressure plate 245 is provided with a plurality of sliding columns 246 that slide with the side through holes of the transmission plate 243, and the pressure plate 245 is provided with a spring 247 connected to the pressure sensor 244.

[0041] The working principle of the liquid bag position pressure device 24 and the powder bag position pressure device 26 is as follows: the electric push rod 241 drives the pressure head 242 to descend, and after the pressure plate 245 contacts the powder-liquid double-chamber bag 8, pressure is applied to it. The reaction force of the powder-liquid double-chamber bag 8 on the pressure plate 245 will compress the spring 247, and the reaction force is transmitted to the pressure sensor 244 through the spring 247 to obtain the pressure on the powder-liquid double-chamber bag 8. When performing destructive testing, when the powder-liquid double-chamber bag 8 is damaged, the liquid pressure in the powder-liquid double-chamber bag 8 is released instantly. At this time, the spring 247 is reset instantly, causing the pressure value obtained by the pressure sensor 244 to drop suddenly, and a destructive pressure peak is obtained. The electric push rod 241 has a self-locking structure, which can perform long-term fixed-value pressure application to prevent sliding when the pressure is released.

[0042] Combined with Figure 5 , Attachment Figure 8 and attached Fig.13As shown, the partition 25 includes an electric push rod 3 251 and a partition plate 252. The output end of the electric push rod 3 251 is connected to the partition plate 252. The partition plate 252 is located between the two pressure heads 242. A partition platform 38 cooperating with the partition plate 252 is provided at the position of the virtual weld 86 on the base 3. The end grooves of the partition plate 252 and the partition platform 38 are respectively provided with a sealing strip 1 253 and a sealing strip 2 381.

[0043] Working principle of the partition 25: the electric push rod 3 251 drives the partition plate 252 to descend until the partition plate 252 and the partition platform 38 clamp the virtual weld 86, so as to ensure that when the liquid bag 81 and the powder bag 82 are subjected to destructive pressure testing respectively, the pressure will not affect each other. The sealing strip 1 253 and the sealing strip 2 381 prevent the liquid from flowing into another chamber after the bag is damaged, so as to avoid affecting the test results.

[0044] Combined with Figure 1 , Attachment Figure 3 , Attachment Figure 7 and attached Fig.11 As shown, a waste liquid collecting mechanism 5 is provided in the detection box 1, and the waste liquid collecting mechanism 5 includes a collecting table 51 and a waste liquid box 56. The collecting table 51 is installed on both sides of the base 3. A plurality of drainage holes 511 connected to the leakage groove 35 are provided on the collecting table 51. A collecting pipe 52 connected to the drainage holes 511 is provided at the rear end of the collecting table 51. The ends of the two collecting pipes 52 are connected to a collecting pipe 53. The collecting pipe 53 is provided with a drainage pipe 54 extending into the waste liquid box 56. The drainage pipe 54 is provided with a solenoid valve 55. The waste liquid box 56 is located in the waste liquid chamber 13 of the detection box 1.

[0045] Working principle of the waste liquid collection mechanism 5: After the destructive test, the drug liquid flows into the drainage hole 511 of the collection table 51 through the leakage groove 35, and then enters the waste liquid tank 56 through the collection tube 52, the collecting tube 53, and the drainage tube 54 in sequence. The solenoid valve 55 is used to control the drainage of the drainage tube 54 and prevent air flow from passing through. When performing a sealing test, the solenoid valve 55 is required to close the drainage tube 54 to prevent moisture in the waste liquid tank 56 from affecting the test results.

[0046] Combined with Figure 1 , Attachment Fig. 9 and attached Fig.12 As shown, a cleaning mechanism 7 is provided in the detection box 1, and the cleaning mechanism 7 includes a water tank 71 and a ring pipe 73. The water tank 71 is located in the water tank chamber 12 of the detection box 1, and a water pump 72 connected to the ring pipe 73 is provided on the water tank 71. A placement groove 371 for placing the ring pipe 73 is provided on the enclosure 37, and a plurality of liquid spray ports 74 are provided on the ring pipe 73.

[0047] Working principle of cleaning mechanism 7: water pump 72 sprays clean water in water tank chamber 12 into chamber 1 31 and chamber 2 32 through liquid spray port 74 of connecting ring tube 73, so as to clean the medicine liquid and prevent scale from forming after evaporation of the medicine liquid. High-ion scale will affect the operation of detector 43, and the cleaned waste liquid is discharged through waste liquid collecting mechanism 5.

[0048] Combined with Figure 1 and attached Fig.11 As shown, a drying mechanism 6 is provided in the detection box 1, and the drying mechanism 6 includes a dust removal box 61. The air inlet of the dust removal box 61 is located in the through hole at the rear side of the detection box 1. A hot air blower 62 is provided on the dust removal box 61. An air duct 63 is provided at the output end of the hot air blower 62. A return bend pipe 64 is connected to the end of the air duct 63. The end of the return bend pipe 64 is downwardly connected to the collecting pipe 53.

[0049] Working principle of drying mechanism 6: After cleaning chamber 1 31 and chamber 2 32 by cleaning mechanism 7, solenoid valve 55 closes the drain pipe 54 channel, and then hot air blower 62 generates hot air and enters chamber 1 31 and chamber 2 32 along air duct 63, return bend pipe 64, collecting pipe 53, collecting pipe 52, drain hole 511, and leakage groove 35 in sequence, and dries the water stains in the drainage channel to facilitate the next quick inspection. The return bend pipe 64 prevents water from flowing into the hot air blower 62 through the air duct 63, and the dust removal box 61 blocks the entry of airborne dust.

[0050] Combined with Figure 1 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 7 As shown, a protective cover 21 is provided on the box cover 2, a fixed platform 22 is provided inside the protective cover 21, a pressure mechanism 23 is provided on the fixed platform 22, wing plates 28 are provided on both sides of the box cover 2, an electric push rod 29 is hingedly provided on the detection box 1, and the output end of the electric push rod 29 is hinged to the wing plate 28, a splash-proof cover 27 matched with the enclosure 37 is provided at the bottom of the box cover 2, the box cover 2 is elastically connected to the splash-proof cover 27, and the elastic connection method includes a rubber pad, a spring, etc., and a sliding hole 271 that slides with the pressure plate 245 and the partition plate 252 is provided on the splash-proof cover 27.

[0051] Working principle of the box cover 2: the electric push rod 29 drives the box cover 2 to rotate through the wing plate 28 to realize the automatic opening and closing action of the box cover 2. When the box cover 2 is closed, the splash-proof cover 27 is first pressed on the enclosure 37 to form a closed chamber. Then the box cover 2 is closed, and the splash-proof cover 27 is pressed against the enclosure 37 through elastic connection methods such as rubber pads and springs. The pressure plate 245 and the partition plate 252 fall through the sliding hole 271 on the splash-proof cover 27. When performing destructive pressure testing, the drug solution can be prevented from splashing everywhere.

[0052] During the specific implementation of the present invention, the powder-liquid double-chamber bag 8 is placed on the base 3, and various inspections are carried out after the inspection items are set. First, the folding plate 33 is rotated to make the powder-liquid double-chamber bag 8 form a folded state (simulating a packaging state), and then the box cover 2 is closed, and the powder bag position pressure device 26 applies a constant pressure to the powder-liquid double-chamber bag 8, and the pressure value is limited to ensure that the powder-liquid double-chamber bag 8 at the bottom of the box withstands one to two times the pressure. Within the set time, if the value of the pressure sensor 244 of the powder bag position pressure device 26 does not change, it proves that the virtual weld 86 can withstand this pressure, and then the box cover 2 is opened, the folding plate 33 is reset, and the box cover 2 is closed, and the liquid bag position pressure device 24 applies pressure to the liquid bag 81 to detect the pressure when the virtual weld 86 is penetrated;

[0053] After the connection, the liquid bag position pressure device 24 and the powder bag position pressure device 26 apply pressure to the liquid bag 81 and the powder bag 82 alternately, respectively, to mix the liquid and the medicine powder evenly. At this time, the liquid in the liquid bag 81 and the powder bag 82 is evenly distributed. Then, the liquid bag position pressure device 24 and the powder bag position pressure device 26 simultaneously apply a certain pressure to the liquid bag 81 and the powder bag 82, and the humidity sensor 311 is used to detect the sealing of the powder-liquid double chamber bag 8. Then, the partition 25 presses the virtual weld 86 to separate the medicine liquid into the liquid bag 81 and the powder bag 82. Then, the liquid bag position pressure device 24 and the powder bag position pressure device 26 simultaneously apply pressure to the liquid bag 81 and the powder bag 82, and respectively perform destructive pressure bearing tests. After the medicine bag leaks or is damaged, the detector 43 in the leakage tank 35 is detected to determine that the medicine liquid flows through here;

[0054] During the experiment, the leaked or damaged drug liquid is collected by the waste liquid collection mechanism 5, and then the base 3 and the waste liquid collection mechanism 5 are cleaned by the cleaning mechanism 7. After cleaning, the base 3 and the waste liquid collection mechanism 5 are dried with hot air by the drying mechanism 6 to facilitate the next quick detection.

[0055] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A device for testing the sealing properties of a powder-liquid double-chamber bag, comprising a testing box (1), a box cover (2) being hingedly provided on the top of the testing box (1), a base (3) for placing the powder-liquid double-chamber bag (8) being provided in the testing box (1), a pressure mechanism (23) being provided on the box cover (2), the pressure mechanism (23) applying pressure to the powder-liquid double-chamber bag (8) on the base (3), and characterized in that: The base (3) is provided with a chamber 1 (31) for placing a liquid bag (81) and a chamber 2 (32) for placing a powder bag (82); both the chamber 1 (31) and the chamber 2 (32) are provided with humidity sensors (311); the sides of the chamber 1 (31) and the chamber 2 (32) are provided with a plurality of liquid leakage grooves (35); and the base (3) is provided with a surrounding plate (37) on the outside of the liquid leakage grooves (35); A detection plate (4) is provided at the bottom of the base (3), the detection plate (4) comprising a liquid bag leakage detection area (41) and a powder bag leakage detection area (42), the liquid bag leakage detection area (41) and the powder bag leakage detection area (42) are both provided with a plurality of detectors (43), the detectors (43) comprising an anode end (44) and a cathode end (45) extending into the leakage groove (35), and the leakage groove (35) is provided with a hydrophobic coating in the area between the anode end (44) and the cathode end (45); The pressure supply mechanism (23) comprises a pressure supply device (24) at the liquid bag position, a separator (25) and a pressure supply device (26) at the powder bag position. The pressure supply device (24) at the liquid bag position and the pressure supply device (26) at the powder bag position apply pressure to the liquid bag (81) and the powder bag (82) respectively, and the separator (25) applies pressure to the virtual weld (86). The base (3) is hingedly provided with a folding plate (33) at chamber one (31); a motor (36) for driving the folding plate (33) to rotate is provided at the bottom of the base (3); a clamping platform (331) for clamping with the infusion port (83) is provided on the folding plate (33); a positioning column (34) for plugging with the hanging hole (84) is provided on chamber two (32); and a stop platform (39) for cooperating with the folding plate (33) is provided on chamber two (32).

2. A powder-liquid double chamber bag sealing detection device according to claim 1, characterized in that: The liquid bag position pressure feeder (24) and the powder bag position pressure feeder (26) both include an electric push rod 2 (241), the output end of the electric push rod 2 (241) is provided with a pressure head (242), the pressure head (242) includes a transmission plate (243) and a pressure plate (245), the top of the transmission plate (243) is connected to the output end of the electric push rod 2 (241), and the bottom is provided with a pressure sensor (244), the pressure plate (245) is provided with a plurality of sliding columns (246) that are slidably matched with the side through holes of the transmission plate (243), and the pressure plate (245) is provided with a spring (247) connected to the pressure sensor (244).

3. A powder-liquid double chamber bag sealing detection device according to claim 2, characterized in that: The partition (25) comprises an electric push rod three (251) and a partition plate (252); the output end of the electric push rod three (251) is connected to the partition plate (252); the partition plate (252) is located between the two pressure heads (242); a partition platform (38) cooperating with the partition plate (252) is provided on the base (3) at the position of the virtual weld (86); and sealing strips one (253) and two (381) are provided in grooves at the ends of the partition plate (252) and the partition platform (38), respectively.

4. The device for detecting the sealing performance of a powder-liquid double-chamber bag according to claim 1, characterized in that: The detection box (1) is provided with a waste liquid collection mechanism (5), the waste liquid collection mechanism (5) comprising a collection platform (51) and a waste liquid box (56), the collection platform (51) being mounted on both sides of the base (3), the collection platform (51) being provided with a plurality of drainage holes (511) connected to the leakage groove (35), the rear end of the collection platform (51) being provided with a collection pipe (52) connected to the drainage holes (511), the ends of the two collection pipes (52) being connected to a collecting pipe (53), the collecting pipe (53) being provided with a drainage pipe (54) extending into the waste liquid box (56), and the drainage pipe (54) being provided with a solenoid valve (55).

5. The device for detecting the sealing performance of a powder-liquid double-chamber bag according to claim 1, characterized in that: The detection box (1) is provided with a cleaning mechanism (7), the cleaning mechanism (7) comprising a water tank (71) and a ring pipe (73), the water tank (71) is provided with a water pump (72) connected to the ring pipe (73), the enclosure (37) is provided with a placement groove (371) for placing the ring pipe (73), and the ring pipe (73) is provided with a plurality of liquid spraying ports (74).

6. A powder-liquid double chamber bag sealing detection device according to claim 4, characterized in that: The detection box (1) is provided with a drying mechanism (6), the drying mechanism (6) comprising a dust removal box (61), a hot air blower (62) being provided on the dust removal box (61), an air duct (63) being provided at the output end of the hot air blower (62), the end of the air duct (63) being connected to a return bend (64), the end of the return bend (64) being downwardly connected to a collecting pipe (53).

7. The device for detecting the sealing performance of a powder-liquid double-chamber bag according to claim 1, characterized in that: The box cover (2) is provided with a fixing platform (22) for fixing a pressure supply mechanism (23), and wing plates (28) are provided on both sides of the box cover (2). An electric push rod (29) is hingedly provided on the detection box (1), and the output end of the electric push rod (29) is hingedly connected to the wing plate (28). A splash-proof cover (27) cooperating with the enclosure (37) is provided at the bottom of the box cover (2), and the box cover (2) and the splash-proof cover (27) are elastically connected.

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