Nitrogen filling device for penicillin bottle

Abstract

The utility model relates to the field of pharmacy, concretely relates to nitrogen filling device for split packing of penicillin bottle, including the dial wheel for conveying penicillin bottle, the outer edge of dial wheel is equipped with the multiple dial wheel grooves that are evenly spaced in circumference, the top of dial wheel is fixedly installed with the sealed box, the top wall of sealed box is rotatably installed with the air inlet pipe that is coaxial with dial wheel, fixedly installed with the air outlet assembly that is one to one corresponding with dial wheel groove in sealed box, air outlet assembly includes the mounting seat fixedly installed in sealed box, the bottom of mounting seat is fixedly installed with the air outlet pipe, the air outlet pipe goes out the bottom wall of sealed box downward and the air outlet pipe is located the right above corresponding dial wheel groove, the air outlet channel that is linked with the inner chamber of sealed box and the air outlet pipe is equipped in mounting seat, and the adjusting valve assembly is equipped in the air outlet channel, the air outlet pipe is always aimed at the penicillin bottle in dial wheel groove, and it is ensured that the air outlet pipe is continuously aligned with penicillin bottle in the nitrogen filling process.

Description

Technical Field

[0001] This utility model relates to the pharmaceutical field, specifically to a nitrogen filling device for vial dispensing. Background Technology

[0002] In the pharmaceutical industry, especially in the production of injectables, lyophilized powder injections, and biologics, the stability of drugs directly affects their safety and efficacy. Many drugs (such as antibiotics, peptides, monoclonal antibodies, and vaccines) are highly sensitive to oxygen and moisture, and are prone to oxidation, hydrolysis, or microbial contamination, leading to reduced efficacy or even drug failure. Traditional drug packaging methods (such as ordinary sealing and desiccants) often cannot completely isolate oxygen and moisture. Therefore, nitrogen-filled protection technology has emerged and is gradually becoming the standard packaging process for high-value-added drugs.

[0003] In the prior art, utility model patent application number CN201320698027.3 discloses a nitrogen-filling device for pharmaceutical filling, including a circular base with a plurality of limiting slots on its side wall. A column is vertically mounted on the circular base, and a nitrogen-distributing rotating disk is mounted on the column. A plurality of nozzles are arranged on the bottom perimeter of the nitrogen-distributing rotating disk, the number of nozzles being the same as the number of limiting slots, and the position of each nozzle corresponding to each limiting slot. This nitrogen-filling device, through the alternating operation of multiple limiting slots and multiple nozzles, ensures sufficient nitrogen gas in the bottle during sealing to protect the pharmaceuticals and prevent oxidation.

[0004] However, because the nitrogen-distributing rotating disk cannot rotate synchronously with the circular base, the nozzle head cannot always be aligned with the vial in the limiting slot. When the nozzle head is misaligned with the limiting slot, the nitrogen gas sprayed from the nozzle head cannot be concentrated and injected into the vial, resulting in nitrogen waste. Utility Model Content

[0005] The purpose of this invention is to provide a nitrogen filling device for vials, which solves the problem of nitrogen waste caused by asynchronous rotation in existing nitrogen filling devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A nitrogen filling device for vials includes a dial wheel for conveying vials. The outer edge of the dial wheel has multiple dial wheel grooves evenly spaced circumferentially. A sealed box is fixedly installed on the top of the dial wheel. An air inlet pipe coaxially arranged with the dial wheel is rotatably installed on the top wall of the sealed box. An air outlet assembly corresponding to each dial wheel groove is fixedly installed inside the sealed box. The air outlet assembly includes a mounting base fixedly installed inside the sealed box. An air outlet pipe is fixedly installed at the bottom of the mounting base. The air outlet pipe extends downward through the bottom wall of the sealed box and is located directly above the corresponding dial wheel groove. The mounting base has an air outlet channel connecting the inner cavity of the sealed box and the air outlet pipe. A regulating valve assembly is provided in the air outlet channel.

[0007] As a further improvement, the air outlet channel has a vertical part and a horizontal part that are interconnected. The lower end of the vertical part is connected to the air outlet pipe, and one end of the horizontal part penetrates the outer wall of the mounting base radially inward parallel to the dial wheel. The regulating valve assembly includes a sealing sleeve coaxially fixedly installed in the horizontal part. A vent pipe is slidably installed in the sealing sleeve. The inner wall of the sealing sleeve is in contact with the outer wall of the vent pipe. The end of the vent pipe near the center of the dial wheel is closed. An air inlet is provided on the outer wall of the vent pipe. An air outlet is provided at the end of the vent pipe away from the center of the dial wheel. An adjusting component is provided in the sealing box for moving the vent pipe along the sealing sleeve.

[0008] As a further improvement, the adjusting component includes a movable plate fixedly installed at one end of the vent pipe near the center of the dial. A spring connects the movable plate to the sealing sleeve. A limiting plate is provided on the outer wall of the end of the vent pipe away from the center of the dial. When the limiting plate abuts against the sealing sleeve, the air inlet protrudes outside the sealing sleeve and communicates with the inner cavity of the sealing box. A baffle is fixedly installed on the air inlet pipe to push the movable plate to move away from the center of the dial. When the side of the movable plate near the center of the dial abuts against the baffle, the air inlet retracts into the sealing sleeve.

[0009] As a further improvement, the inner wall of the horizontal part is provided with a guide protrusion extending along its length, and the limiting plate is provided with a groove that matches the guide protrusion.

[0010] As a further improvement, the upper end of the intake pipe extends out of the outer side of the sealing box and is rotatably mounted on a bracket, on which a motor for driving the intake pipe to rotate is also mounted.

[0011] As a further improvement, the baffle includes an upper baffle and a lower baffle that are staggered vertically. Both the upper baffle and the lower baffle are arc-shaped and coaxially arranged with the air intake pipe. The upper baffle and the lower baffle have the same outer diameter. When the movable plate abuts against the outer wall of the upper baffle, the outer wall of the lower baffle, or both the upper baffle and the lower baffle on the side closest to the center of the dial wheel, the air intake is retracted into the sealing sleeve. The lower baffle is fixedly installed on the air intake pipe, and the upper baffle is rotatably installed on the air intake pipe on the same axis. An electric push rod for driving the upper baffle to rotate is hinged between the upper baffle and the lower baffle.

[0012] As a further improvement, the movable plate has chamfers at both horizontal ends near the center of the dial wheel. When the limiting plate abuts against the end of the sealing sleeve away from the center of the dial wheel, the chamfers are located on the rotation trajectory of the upper baffle and the lower baffle.

[0013] As a further improvement, the intake pipe is provided with an intake channel extending downward from its upper end, and the outer wall of the intake pipe located inside the sealed box is provided with an intake hole that communicates with the intake channel.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application adopts a design that allows the dial wheel and the sealing box to rotate synchronously, so that the gas outlet pipe is always aligned with the vial in the dial wheel groove, ensuring that the gas outlet pipe is continuously aligned with the vial during the nitrogen filling process, and that nitrogen is concentrated and injected into the vial, thereby improving the nitrogen utilization rate. 2. This application facilitates the sealing of the gas outlet component corresponding to the dial slot that does not have a vial. When there is no vial in the dial slot, the baffle pushes the movable plate to move, sealing the gas inlet, so as to achieve nitrogen supply on demand and further avoid nitrogen waste. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 yes Figure 1 Another structural diagram from another perspective; Figure 3 This is a schematic diagram of the structure inside the sealed box according to an embodiment of the present invention; Figure 4This is a schematic diagram of the air outlet component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the baffle according to an embodiment of the present utility model; Figure 6 This is a top view of the dial according to an embodiment of the present invention.

[0017] In the diagram: 1-Dial wheel; 2-Dial wheel groove; 3-Support column; 4-Sealing box; 5-Inlet pipe; 6-Inlet channel; 7-Inlet hole; 9-Outlet assembly; 10-Mounting base; 11-Outlet pipe; 12-Outlet channel; 13-Vertical part; 14-Horizontal part; 15-Sealing sleeve; 16-Ventilation pipe; 17-Inlet; 18-Outlet; 19-Moving plate; 20-Spring; 21-Limiting plate; 22-Baffle; 23-Guide protrusion; 24-Groove; 25-Bracket; 26-Motor; 27-Upper baffle; 28-Lower baffle; 29-First bracket plate; 30-Fixing ring; 31-Second bracket plate; 32-Rotating ring; 33-Electric push rod; 34-Chamfer; 35-Village; 36-Feeding line; 37-Outlet line. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 6 As shown, the nitrogen filling device for dispensing vials 35 includes a dial wheel 1 for conveying vials 35. The dial wheel 1 is rotatably mounted on the platform, and the outer edge of the dial wheel 1 has multiple dial wheel grooves 2 evenly spaced circumferentially. Figure 6 As shown, a feed line 36 and a discharge line 37 are respectively provided on both sides of the dial wheel 1. The feed line 36 feeds the vial 35 into the dial wheel groove 2 of the dial wheel 1. The rotation of the dial wheel 1 drives the vial 35 to move towards the discharge line 37. During the process of the dial wheel 1 driving the vial 35 to move, the vial 35 is filled with nitrogen.

[0020] A sealing box 4 is fixedly installed on the top of the dial 1 via a support column 3. The sealing box 4 is cylindrical and coaxial with the dial 1. An air inlet pipe 5, coaxial with the dial 1, is installed on the top wall of the sealing box 4. The air inlet pipe 5 is rotatably and sealingly connected to the top wall of the sealing box 4. Figure 3 and Figure 5As shown, the air intake pipe 5 has an air intake channel 6 extending downward from its upper end. The outer wall of the air intake pipe 5 located inside the sealed box 4 has an air intake hole 7 that connects to the air intake channel 6. The upper end of the air intake pipe 5 is connected to a gas source for filling the sealed box 4 with nitrogen.

[0021] like Figure 3 and Figure 4 As shown, a gas outlet assembly 9 corresponding to the dial slot 2 is fixedly installed inside the sealed box 4. The gas outlet assembly 9 includes a mounting base 10 fixedly installed on the inner side of the bottom wall of the sealed box 4 by screws. The bottom of the mounting base 10 is integrally formed with a gas outlet pipe 11. The gas outlet pipe 11 extends downward through the bottom wall of the sealed box 4 and is located directly above the corresponding dial slot 2. When the dial 1 rotates, it will drive the sealed box 4 to rotate synchronously, so that the gas outlet pipe 11 can continuously maintain alignment with the corresponding dial slot 2. The nitrogen gas blown out by the gas outlet pipe 11 can be injected more concentratedly into the vial 35 in the dial slot 2 below it, avoiding waste.

[0022] The mounting base 10 has an air outlet channel 12 that connects the inner cavity of the sealed box 4 with the air outlet pipe 11. An adjusting valve assembly is located within the air outlet channel 12. Figure 6 As shown, during the rotation of the dial wheel 1, the dial wheel groove 2 rotating from the feed line 36 to the discharge line 37 contains a vial 35, while the dial wheel groove 2 returning from the discharge line 37 to the feed line 36 does not contain a vial 35. For the gas outlet assembly 9 corresponding to the dial wheel groove 2 that does not contain a vial 35 when rotating to the return direction, the gas outlet channel 12 can be closed by the regulating valve assembly, so that the gas outlet pipe 11 no longer blows out nitrogen, further avoiding the waste of nitrogen.

[0023] The air outlet channel 12 is inverted L-shaped and has a vertical section 13 and a horizontal section 14 that are interconnected. The lower end of the vertical section 13 is connected to the air outlet pipe 11, and the end of the horizontal section 14 away from the vertical section 13 penetrates the outer wall of the mounting base 10 radially inward parallel to the dial wheel 1. The regulating valve assembly includes a sealing sleeve 15 coaxially fixedly installed in the horizontal section 14. Specifically, the sealing sleeve 15 is threadedly connected to the end of the horizontal section 14 near the center of the dial wheel 1. A vent pipe 16 is slidably installed in the sealing sleeve 15. The inner wall of the sealing sleeve 15 fits against the outer wall of the vent pipe 16. The end of the vent pipe 16 near the center of the dial wheel 1 is closed. An air inlet 17 is provided on the outer wall of the vent pipe 16, and an air outlet 18 is provided at the end of the vent pipe 16 away from the center of the dial wheel 1. The sealing box 4 is provided with an adjusting component for moving the vent pipe 16 along the sealing sleeve 15. Specifically, the vent pipe 16 is slid along the sealing sleeve 15 towards the center of the dial 1, so that the air inlet 17 on the vent pipe 16 is exposed outside the sealing sleeve 15 and connected to the inner cavity of the sealing box 4. The nitrogen in the sealing box 4 enters the exhaust channel 12 through the air inlet 17 and the air outlet 18 in sequence and is blown out from the exhaust pipe 11. Conversely, the vent pipe 16 is slid along the sealing sleeve 15 away from the center of the dial 1, so that the air inlet 17 on the vent pipe 16 is retracted into the sealing sleeve 15. The air inlet 17 is blocked by the sealing sleeve, so that the nitrogen in the sealing box 4 cannot enter the exhaust channel 12, and the exhaust pipe 11 stops blowing out nitrogen.

[0024] like Figure 3 and Figure 5 As shown, the adjusting component includes a movable plate 19 fixedly installed at one end of the vent pipe 16 near the center of the dial 1 by screws. A spring 20 is connected between the movable plate 19 and the sealing sleeve 15. A limiting plate 21 is integrally formed on the outer wall of the end of the vent pipe 16 away from the center of the dial 1. When no external force is applied, the elastic force of the spring 20 causes the limiting plate 21 to abut against the end of the sealing sleeve 15 away from the center of the dial 1. The air inlet 17 is exposed outside the sealing sleeve 15 and communicates with the inner cavity of the sealing box 4.

[0025] A baffle 22 is fixedly installed on the air inlet pipe 5 to push the movable plate 19 to move away from the center of the dial wheel 1. The baffle 22 corresponds to the dial wheel groove 2 which does not have a vial 35. When the dial wheel 1 drives the movable plate 19 to rotate to the position of the baffle 22, the baffle 22 contacts the movable plate 19 and pushes the movable plate 19 to move away from the center of the dial wheel 1. This causes the air pipe 16 to slide away from the center of the dial wheel 1 and the air inlet 17 to retract into the sealing sleeve 15. The air outlet pipe 11 stops blowing out nitrogen.

[0026] like Figure 4 As shown, in order to prevent the ventilation pipe 16 and the movable plate 19 from deflecting, a guide ridge 23 extending along its length is integrally formed on the inner wall of the horizontal part 14, and a groove 24 matching the guide ridge 23 is provided on the limiting plate 21.

[0027] like Figure 1 As shown, the upper end of the air inlet pipe 5 extends out of the outer side of the sealed box 4 and is rotatably mounted on the bracket 25. The bracket 25 is fixedly mounted on the platform. The bracket 25 is also equipped with a motor 26 for driving the air inlet pipe 5 to rotate. The motor 26 is connected to the air inlet pipe 5 through a gear pair. The motor 26 drives the air inlet pipe 5 to rotate, which in turn drives the baffle 22 to rotate, so as to adjust the position of the baffle 22 according to the distribution of the feed line 36 and the discharge line 37.

[0028] like Figure 5 As shown, the baffle 22 includes an upper baffle 27 and a lower baffle 28 that are staggered. Both the upper baffle 27 and the lower baffle 28 are arc-shaped and coaxial with the air intake pipe 5. The outer diameters of the upper baffle 27 and the lower baffle 28 are the same. One end of the upper baffle 27 and the lower baffle 28 are staggered. When the movable plate 19 abuts against the outer wall of the upper baffle 27 or the outer wall of the lower baffle 28 or both the upper baffle 27 and the lower baffle 28 on the side close to the center of the dial wheel 1, the air intake port 17 is retracted into the sealing sleeve. The lower baffle 28 is fixedly mounted with a coaxially arranged fixing ring 30 via the first bracket plate 29. The fixing ring 30 is fixedly mounted on the intake pipe 5 with screws. The upper baffle 27 is fixedly mounted with a coaxially arranged rotating ring 32 via the second bracket plate 31. The rotating ring 32 is rotatably mounted on the intake pipe 5 via bearings. An electric push rod 33 for driving the upper baffle 27 to rotate is hinged between the first bracket plate 29 and the second bracket plate 31. The electric push rod 33 is horizontally arranged. The extension and retraction of the electric push rod 33 drives the upper baffle 27 to rotate relative to the lower baffle 28, thereby adjusting the range of action of the upper baffle 27 and the lower baffle 28 so as to close the corresponding number of air outlet channels 12 according to the return wheel groove 2.

[0029] The movable plate 19 has chamfers 34 at both horizontal ends near the center of the dial wheel 1. When the limiting plate 21 abuts against the end of the sealing sleeve 15 away from the center of the dial wheel 1, the chamfers 34 are located on the rotation trajectory of the upper baffle 27 and the lower baffle 28. When the chamfers 34 contact the end of the upper baffle 27 or the lower baffle 28, the movable plate 19 is driven to move away from the center of the dial wheel 1 by the guiding effect of the arc surface of the chamfers 34.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrogen-filling device for dispensing vials, characterized in that: The device includes a dial for feeding vials. The dial has multiple circumferentially spaced grooves on its outer edge. A sealed box is fixedly mounted on the top of the dial. An air inlet pipe, coaxially aligned with the dial, is rotatably mounted on the top wall of the sealed box. An air outlet assembly, corresponding to each dial groove, is fixedly mounted inside the sealed box. Each air outlet assembly includes a mounting base fixedly mounted inside the sealed box. An air outlet pipe is fixedly mounted on the bottom of the mounting base, extending downwards through the bottom wall of the sealed box and positioned directly above the corresponding dial groove. An air outlet channel connects the inner cavity of the sealed box to the air outlet pipe, and a regulating valve assembly is located within the air outlet channel.

2. The nitrogen filling device for vial dispensing as described in claim 1, characterized in that: The air outlet channel has a vertical part and a horizontal part that are interconnected. The lower end of the vertical part is connected to the air outlet pipe. One end of the horizontal part penetrates the outer wall of the mounting base radially inward, parallel to the dial wheel. The regulating valve assembly includes a sealing sleeve coaxially fixedly installed in the horizontal part. A vent pipe is slidably installed in the sealing sleeve. The inner wall of the sealing sleeve is in contact with the outer wall of the vent pipe. The end of the vent pipe near the center of the dial wheel is closed. An air inlet is provided on the outer wall of the vent pipe. An air outlet is provided at the end of the vent pipe away from the center of the dial wheel. The sealing box is provided with an adjusting component for moving the vent pipe along the sealing sleeve.

3. The nitrogen filling device for vial dispensing as described in claim 2, characterized in that: The adjusting component includes a movable plate fixedly installed at one end of the vent pipe near the center of the dial. A spring connects the movable plate to the sealing sleeve. A limiting plate is provided on the outer wall of the end of the vent pipe away from the center of the dial. When the limiting plate abuts against the sealing sleeve, the air inlet protrudes outside the sealing sleeve and communicates with the inner cavity of the sealing box. A baffle is fixedly installed on the air inlet pipe to push the movable plate to move away from the center of the dial. When the side of the movable plate near the center of the dial abuts against the baffle, the air inlet retracts into the sealing sleeve.

4. The nitrogen filling device for vial dispensing as described in claim 3, characterized in that: The inner wall of the horizontal part is provided with a guide protrusion extending along its length, and the limiting plate is provided with a groove that matches the guide protrusion.

5. The nitrogen filling device for vial dispensing as described in claim 3, characterized in that: The upper end of the air intake pipe extends out of the outside of the sealed box and is rotatably mounted on the bracket, which is also equipped with a motor for driving the air intake pipe to rotate.

6. The nitrogen filling device for vial dispensing as described in claim 3, characterized in that: The baffle includes an upper baffle and a lower baffle that are staggered vertically. Both the upper baffle and the lower baffle are arc-shaped and coaxial with the air intake pipe. The upper baffle and the lower baffle have the same outer diameter. When the movable plate abuts against the outer wall of the upper baffle, the outer wall of the lower baffle, or both the upper baffle and the lower baffle on the side closest to the center of the dial, the air intake is retracted into the sealing sleeve. The lower baffle is fixedly installed on the air intake pipe, and the upper baffle is rotatably installed on the air intake pipe on the same axis. An electric push rod for driving the upper baffle to rotate is hinged between the upper baffle and the lower baffle.

7. The nitrogen filling device for vial dispensing as described in claim 6, characterized in that: The movable plate has chamfers at both horizontal ends near the center of the dial wheel. When the limiting plate abuts against the end of the sealing sleeve away from the center of the dial wheel, the chamfers are located on the rotation trajectory of the upper baffle and the lower baffle.

8. The nitrogen filling device for vial dispensing as described in claim 1, characterized in that: The air intake pipe has an air intake channel extending downward from its upper end, and the outer wall of the air intake pipe located inside the sealed box has an air intake hole that communicates with the air intake channel.

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