Vacuumizing and nitrogen filling device for penicillin bottle

By designing a vacuum and nitrogen filling mechanism for vials, a vacuum and nitrogen filling device was developed, enabling stable placement and automatic sealing of vials. This solved the problems of stability and operational complexity in existing devices, and improved efficiency and safety.

CN224013985UActive Publication Date: 2026-03-20NAT INST FOR FOOD & DRUG CONTROL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing vacuum-sealed nitrogen-filling devices for vials cannot guarantee the stability of the vials during operation. The caps need to be opened, which leads to nitrogen loss and is complicated to operate, posing safety hazards.

Method used

A device including a vacuum mechanism and a nitrogen filling mechanism was designed. A servo motor drives a threaded rod to move the placement rack, achieving stable placement and automatic sealing of vials. Combined with a vacuum pump and a nitrogen cylinder, it achieves efficient vacuuming and nitrogen filling, and uses a suction cup to automatically seal the bottle stopper.

Benefits of technology

It improves the efficiency and convenience of vacuuming and filling vials with nitrogen, ensures uniform and stable nitrogen pressure, avoids damage to the stopper and nitrogen loss, simplifies the operation process, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224013985U_ABST
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Abstract

The utility model relates to the technical field of penicillin bottle processing, and discloses a vacuumizing and nitrogen filling device for penicillin bottles, which comprises a base, a vacuum mechanism is arranged at the top of the base, a nitrogen filling mechanism is arranged at the top of the vacuum mechanism, the vacuum mechanism comprises a sealing box, the sealing box is fixedly connected to the top of the base, and a nitrogen filling mechanism is arranged at the top of the nitrogen filling mechanism. The front side of the sealing box is rotationally connected with a protective door, the rear side of the sealing box is fixedly connected with a servo motor, and the front side of the servo motor is fixedly connected with a threaded rod. Firstly, the placement frame is driven to move to the front side in the sealing box under the action of the threaded rod and the moving seat, a worker can conveniently insert penicillin bottles into the placement frame to be in a stable state, a plurality of penicillin bottles can be placed at a time, and when placement is completed, the placement frame is moved into the sealing box again under the action of the threaded rod and is located at the bottom of the suction cup.
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Description

Technical Field

[0001] This utility model relates to the field of vial processing technology, specifically a vacuum pumping and nitrogen filling device for vials. Background Technology

[0002] A vial, also known as a borosilicate glass or soda-lime glass molded injection vial, is a small bottle sealed with a rubber stopper and an aluminum-plastic composite cap. Early penicillin was often contained in vials, hence the name "vials." They are primarily used to hold injectable drugs, vaccines, lyophilized preparations, and can also be used to hold chemical reagents and cosmetics. Currently, after the vials are manufactured, the common practice is to directly insert a hose connected to a vacuum pump into each vial to create a vacuum. After vacuuming, the hose is removed and the rubber stopper is quickly replaced. This method is inefficient, and during the time between the stopper being on and the hose being removed, external gas can easily enter the vial, posing a significant safety hazard.

[0003] According to the patent application published on the Internet, a vacuuming and nitrogen-filling device for vials (authorization announcement number: CN215972298U) is described as including a "vacuum gauge, a vacuum sensor, and a container" to achieve vacuuming and nitrogen-filling operations.

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This device uses a vacuum pump and nitrogen filling system, which employs a vacuum gauge, vacuum sensor, and container to achieve vacuuming and nitrogen filling. In operation, the same number of vials and rubber caps are placed on top of a partition, a sealing ring is installed between the cap and the vial body, the cap is opened, and the rubber cap is quickly placed inside the vial to seal it. This method not only fails to guarantee the stability of the vials during placement but also requires opening the cap and placing the rubber cap inside, leading to nitrogen loss. The system is ineffective and complex to operate, therefore, improvements to this device are necessary. Utility Model Content

[0006] The purpose of this invention is to provide a vacuum pumping and nitrogen filling device for vials to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum pumping and nitrogen filling device for vials, comprising a base, a vacuum mechanism on the top of the base, and a nitrogen filling mechanism on the top of the vacuum mechanism;

[0008] The vacuum mechanism includes a sealed box fixedly connected to the top of the base. A protective door is rotatably connected to the front of the sealed box. A servo motor is fixedly connected to the rear of the sealed box. A threaded rod is fixedly connected to the front of the servo motor. A movable seat is threadedly connected to the outer side of the threaded rod. The movable seat is slidably connected inside the sealed box. A slider is fixedly connected to the bottom of the movable seat. A placement rack is fixedly connected to the top of the movable seat. A vacuum gauge is fixedly connected inside the sealed box. A cylinder is fixedly connected to the top of the sealed box. A suction cup is fixedly connected to the bottom of the cylinder. A telescopic rod is fixedly connected to the top of the suction cup. A flexible hose is fixedly connected to the top of the suction cup. A connecting pipe is fixedly connected to the top of the flexible hose. A gas storage tank is fixedly connected to the rear of the connecting pipe. A first vacuum pump is fixedly connected to the outer side of the connecting pipe. A vacuum tube is fixedly connected to the left side of the gas storage tank. A second vacuum pump is fixedly connected to the outer side of the vacuum tube. A suction hood is fixedly connected to the bottom of the vacuum tube.

[0009] Preferably, the front side of the threaded rod is rotatably connected to the sealed box, and the slider is slidably connected to the inside of the sealed box, so as to facilitate the movement of the movable seat under the action of the threaded rod.

[0010] Preferably, the telescopic rod is fixedly connected to the top of the sealed box, and the flexible hose is slidably connected to the inside of the sealed box, so as to ensure the stability of the suction cup movement under the action of the telescopic rod.

[0011] Preferably, the gas storage box, the first vacuum pump, and the second vacuum pump are fixedly connected to the top of the sealed box, and the vacuum tube is fixedly connected to the inside of the sealed box, so that the air drawn in by the suction hood can be transported to the gas storage box and discharged under the action of the vacuum tube.

[0012] Preferably, the sealed box has a sliding groove inside, and the movable seat is slidably connected in the sliding groove, so as to ensure the stability of the movement of the movable seat under the action of the sliding groove.

[0013] Preferably, the nitrogen filling mechanism includes a delivery pipe, which is fixedly connected inside the sealed box. A gas nozzle is fixedly connected to the bottom of the delivery pipe, a pressure reducing valve is fixedly connected to the rear side of the delivery pipe, a nitrogen cylinder is fixedly connected to the rear side of the pressure reducing valve, and a delivery pump is fixedly connected to the periphery of the delivery pipe.

[0014] Preferably, the delivery pump is fixedly connected to the top of the sealed box, and the nitrogen cylinder is fixedly connected to the top of the sealed box, so that the nitrogen in the nitrogen cylinder can be delivered to the gas nozzle under the action of the delivery pump.

[0015] Compared with the prior art, this utility model provides a vacuum pumping and nitrogen filling device for vials, which has the following advantages:

[0016] 1. This vial vacuuming and nitrogen-filling device, through its vacuum mechanism, first moves the placement rack to the front of the sealed box under the action of the threaded rod and the moving seat, making it easy for the operator to insert the vial into the placement rack in a stable state. Multiple vials can be placed at once. After placement, the placement rack is moved back into the sealed box under the action of the threaded rod and positioned at the bottom of the suction cup. The first vacuum pump operates to evacuate the suction cup. During the evacuation process, the corresponding stopper of the vial is placed into the suction cup and adsorbed by the suction cup. The protective door is closed to ensure the sealing of the sealed box. At the same time, the second vacuum pump is started. Under the action of the vacuum tube and the suction hood, the sealed box and the vial are evacuated, improving the efficiency and convenience of vacuuming. After the vial is filled with nitrogen, the cylinder moves the suction cup, causing the suction cup to slide and connect to the top of the vial, inserting the stopper into the vial and achieving automatic sealing.

[0017] 2. This vial uses a vacuum-assisted nitrogen filling device. Through the nitrogen filling mechanism, when the vial is placed and the vacuum is completed, the nitrogen cylinder is connected to the delivery pipe through a pressure reducing valve. The delivery pump then delivers the nitrogen from the nitrogen cylinder to the gas nozzle after the pressure is reduced by the pressure reducing valve, thereby filling the vial in the sealed box with nitrogen. The pressure reducing valve can stabilize the output pressure of the nitrogen, making the nitrogen pressure entering the vial uniform and stable, avoiding damage to the vial or affecting the nitrogen filling effect due to unstable pressure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the vacuum mechanism structure;

[0022] Figure 4 This is a cross-sectional view of the sealed box.

[0023] Figure 5 This is a schematic diagram of the external structure of the threaded rod;

[0024] Figure 6 This is a schematic diagram of the top structure of the sealed box;

[0025] Figure 7 This is a schematic diagram of the nitrogen filling mechanism.

[0026] In the diagram: 1. Base; 2. Vacuum mechanism; 3. Nitrogen filling mechanism; 21. Sealed box; 22. Servo motor; 23. Protective door; 24. Gas storage box; 25. Vacuum gauge; 26. Threaded rod; 27. Moving seat; 28. Placement rack; 29. ​​Cylinder; 291. Slider; 292. Telescopic rod; 293. Suction cup; 294. Hose; 295. Connecting pipe; 296. First vacuum pump; 297. Second vacuum pump; 298. Vacuum tube; 299. Suction hood; 31. Nitrogen cylinder; 32. Pressure reducing valve; 33. Delivery pump; 34. Delivery pipe; 35. Gas nozzle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figures 1-7 This utility model provides a technical solution: a vacuum pumping and nitrogen filling device for vials, including a base 1, a vacuum mechanism 2 on the top of the base 1, and a nitrogen filling mechanism 3 on the top of the vacuum mechanism 2;

[0032] Vacuum mechanism 2 includes a sealed box 21, which is fixedly connected to the top of the base 1. A protective door 23 is rotatably connected to the front of the sealed box 21. A servo motor 22 is fixedly connected to the rear of the sealed box 21. A threaded rod 26 is fixedly connected to the front of the servo motor 22. A movable seat 27 is threadedly connected to the outer periphery of the threaded rod 26. The movable seat 27 is slidably connected inside the sealed box 21. A slider 291 is fixedly connected to the bottom of the movable seat 27. A placement rack 28 is fixedly connected to the top of the movable seat 27. A vacuum gauge 25 is fixedly connected inside the sealed box 21. A cylinder 29 is fixedly connected to the cylinder 29. A suction cup 293 is fixedly connected to the bottom of the cylinder 29. A telescopic rod 292 is fixedly connected to the top of the suction cup 293. A flexible hose 294 is fixedly connected to the top of the suction cup 293. A connecting pipe 295 is fixedly connected to the top of the flexible hose 294. An air storage tank 24 is fixedly connected to the rear side of the connecting pipe 295. A first vacuum pump 296 is fixedly connected to the outside of the connecting pipe 295. A vacuum tube 298 is fixedly connected to the left side of the air storage tank 24. A second vacuum pump 297 is fixedly connected to the outside of the vacuum tube 298. A suction hood 299 is fixedly connected to the bottom of the vacuum tube 298.

[0033] The threaded rod 26 is rotatably connected to the sealing box 21 at its front side, and the slider 291 is slidably connected to the inside of the sealing box 21, so that the moving seat 27 can be moved under the action of the threaded rod 26. The telescopic rod 292 is fixedly connected to the top inside the sealing box 21, and the hose 294 is slidably connected to the inside of the sealing box 21, so that the movement of the suction cup 293 can be stabilized under the action of the telescopic rod 292.

[0034] The gas storage box 24, the first vacuum pump 296 and the second vacuum pump 297 are fixedly connected to the top of the sealed box 21, and the vacuum tube 298 is fixedly connected to the inside of the sealed box 21, so that the air sucked by the suction hood 299 can be transported to the gas storage box 24 for discharge under the action of the vacuum tube 298. A sliding groove is opened inside the sealed box 21, and the movable seat 27 is slidably connected in the sliding groove, so as to ensure the stability of the movement of the movable seat 27 under the action of the sliding groove.

[0035] Example 2

[0036] Please see Figures 1-7 Furthermore, based on Embodiment 1, the nitrogen filling mechanism 3 further includes a delivery pipe 34, which is fixedly connected to the inside of the sealed box 21. A gas nozzle 35 is fixedly connected to the bottom of the delivery pipe 34. A pressure reducing valve 32 is fixedly connected to the rear side of the delivery pipe 34. A nitrogen cylinder 31 is fixedly connected to the rear side of the pressure reducing valve 32. A delivery pump 33 is fixedly connected to the periphery of the delivery pipe 34. The delivery pump 33 is fixedly connected to the top of the sealed box 21. The nitrogen cylinder 31 is fixedly connected to the top of the sealed box 21, so that the nitrogen in the nitrogen cylinder 31 can be delivered to the gas nozzle 35 under the action of the delivery pump 33.

[0037] In actual operation, when this device is used and it is necessary to vacuum and fill the vials with nitrogen, the servo motor 22 first drives the threaded rod 26 to rotate, which in turn drives the moving seat 27 and the slider 291 to move. Under the action of the moving seat 27, the placement rack 28 is moved to the front of the sealed box 21, making it easy for the staff to insert the vials into the placement rack 28 in a stable state. Multiple vials can be placed at one time. After placement, the threaded rod 26 moves the placement rack 28 back into the sealed box 21 and to the bottom of the suction cup 293. The first vacuum pump 296 then works to vacuum the suction cup 293. During the vacuuming process, the stopper corresponding to the vial is placed into the suction cup 293 and adsorbed by the suction cup 293. The protective door 23 is then closed to ensure the sealing of the sealed box 21.

[0038] Simultaneously, the second vacuum pump 297 is started, and under the action of the vacuum tube 298 and the suction hood 299, the vacuuming work can be carried out in the sealed box 21 and the vial, which improves the efficiency and convenience of vacuuming. During the vacuuming process, the value of the vacuum gauge 25 can be observed. When a certain vacuum level is reached, the vacuuming work of the vial is stopped.

[0039] Nitrogen gas in nitrogen cylinder 31 is depressurized by pressure reducing valve 32 and delivered to nozzle 35 through delivery pump 33 and delivery pipe 34, thereby filling vials in sealed box 21 with nitrogen. Pressure reducing valve 32 can stabilize the output pressure of nitrogen gas, so that the nitrogen pressure in the vial is uniform and stable, avoiding damage to the vial or affecting the nitrogen filling effect due to unstable pressure.

[0040] When nitrogen filling is complete, the cylinder 29 drives the suction cup 293 to move, and the suction cup 293 drives the telescopic rod 292 to move, so that the suction cup 293 drives the bottle stopper to slide and connect to the top of the vial, so that the bottle stopper is inserted into the vial and achieves automatic sealing. When the suction cup 293 moves, it will drive the hose 294 to slide inside the sealing box 21 to ensure the stability of the bottle stopper adsorption. When nitrogen filling is complete, the first vacuum pump 296 and the delivery pump 33 can stop working and start the next batch of vacuuming and nitrogen filling work.

[0041] The vacuum gauge 25 used in this case is model YZ-40, and the pressure reducing valve 32 is model AMCO.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A vacuum pumping and nitrogen filling device for vials, comprising a base (1), characterized in that: The base (1) is provided with a vacuum mechanism (2) at the top, and the vacuum mechanism (2) is provided with a nitrogen filling mechanism (3) at the top. The vacuum mechanism (2) includes a sealed box (21), which is fixedly connected to the top of the base (1). A protective door (23) is rotatably connected to the front of the sealed box (21). A servo motor (22) is fixedly connected to the rear of the sealed box (21). A threaded rod (26) is fixedly connected to the front of the servo motor (22). A movable seat (27) is threadedly connected to the outer periphery of the threaded rod (26). The movable seat (27) is slidably connected to the inside of the sealed box (21). A slider (291) is fixedly connected to the bottom of the movable seat (27). A placement rack (28) is fixedly connected to the top of the movable seat (27). A vacuum gauge (25) is fixedly connected inside the sealed box (21). A cylinder (29) is fixedly connected to the top of the sealed box (21). A suction cup (293) is fixedly connected to the bottom of the cylinder (29). A telescopic rod (292) is fixedly connected to the top of the suction cup (293), a flexible hose (294) is fixedly connected to the top of the suction cup (293), a connecting pipe (295) is fixedly connected to the top of the flexible hose (294), a gas storage tank (24) is fixedly connected to the rear side of the connecting pipe (295), a first vacuum pump (296) is fixedly connected to the periphery of the connecting pipe (295), a vacuum tube (298) is fixedly connected to the left side of the gas storage tank (24), a second vacuum pump (297) is fixedly connected to the periphery of the vacuum tube (298), and a suction hood (299) is fixedly connected to the bottom of the vacuum tube (298).

2. The vacuum pumping and nitrogen filling device for vials according to claim 1, characterized in that: The front side of the threaded rod (26) is rotatably connected to the sealing box (21), and the slider (291) is slidably connected to the inside of the sealing box (21).

3. The vacuum pumping and nitrogen filling device for vials according to claim 1, characterized in that: The telescopic rod (292) is fixedly connected to the top of the sealed box (21), and the flexible hose (294) is slidably connected to the inside of the sealed box (21).

4. The vacuum pumping and nitrogen filling device for vials according to claim 1, characterized in that: The gas storage tank (24), the first vacuum pump (296) and the second vacuum pump (297) are fixedly connected to the top of the sealed box (21), and the vacuum tube (298) is fixedly connected to the inside of the sealed box (21).

5. The vacuum pumping and nitrogen filling device for vials according to claim 1, characterized in that: The sealed box (21) has a sliding groove inside, and the movable seat (27) is slidably connected to the sliding groove.

6. The vacuum pumping and nitrogen filling device for vials according to claim 1, characterized in that: The nitrogen filling mechanism (3) includes a delivery pipe (34), which is fixedly connected to the inside of the sealed box (21). A gas nozzle (35) is fixedly connected to the bottom of the delivery pipe (34). A pressure reducing valve (32) is fixedly connected to the rear side of the delivery pipe (34). A nitrogen cylinder (31) is fixedly connected to the rear side of the pressure reducing valve (32). A delivery pump (33) is fixedly connected to the periphery of the delivery pipe (34).

7. A vacuum pumping and nitrogen filling device for vials according to claim 6, characterized in that: The delivery pump (33) is fixedly connected to the top of the sealed box (21), and the nitrogen cylinder (31) is fixedly connected to the top of the sealed box (21).

Citation Information

Patent Citations

  • Vacuumizing and nitrogen filling device for penicillin bottle

    CN215972298U