Air blowing structure and nitrogen charging device

By designing a curved, flat air vent in the powder filling machine, the problem of powder scattering was solved, improving the sterility and sealing of the medicine and ensuring product stability.

CN223812786UActive Publication Date: 2026-01-20HISUN PFIZER PHARM CO LTD
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Patent Information

Application Number
CN202520086528.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-20
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

In existing powder filling machines, the second nitrogen filling device blows air directly into the bottle before stoppering, causing the powder inside the vial to rise and affecting the stoppering and product sealing.

Method used

Design an air blowing structure including a nitrogen-filled fixing block and a curved, flat air blowing hole with the air outlet direction facing the bottle mouth. By changing the air blowing position, reducing the pressure and increasing the air blowing area, the powder is prevented from being blown up, and residual powder at the bottle mouth is blown away before the stopper is pressed.

Benefits of technology

This effectively prevents the powder from being scattered, ensuring the sterility and stability of the medicine, guaranteeing the sealing of the rubber stopper, and improving the stability and sterility of the medicine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filling and nitrogen charging equipment, in particular to an air blowing structure and a nitrogen charging device. The air blowing structure comprises a nitrogen filling fixing block, the nitrogen filling fixing block is provided with a nitrogen filling path and a first air blowing hole, and the first air blowing hole communicates with the nitrogen filling path; the first blowing hole is of a bent flat structure, and in the using state, the air outlet direction of the first blowing hole is right opposite to a bottle opening. According to the blowing structure provided by the utility model, the product stability is improved by changing the blowing position, reducing the blowing pressure and increasing the blowing area.
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Description

TECHNICAL FIELD

[0001] The utility model relates to filling nitrogen equipment technical field, especially a kind of blowing structure and nitrogen filling device. BACKGROUND

[0002] In order to improve the stability of medicine, different dosage forms of medicine need to increase nitrogen filling protection in production process. Sterile liquid filling and freeze-drying cavity have nitrogen filling protection device to prevent product from being oxidized, thereby increasing the stability of medicine. The filling of sterile powder dosage form medicine is also the same, in order to improve the stability of product, nitrogen filling protection device is also needed during filling.

[0003] The existing powder filling machine equipment has two nitrogen filling devices, the first nitrogen filling device is nitrogen blowing before the rubber plug, and the second nitrogen filling device is nitrogen blowing before the plug. The first nitrogen filling device is provided with a small air hole, and nitrogen is directly blown into the bottle under the cover plate, which does not make the medicine powder in the bottle fly up, mainly plays the role of nitrogen protection. The second nitrogen filling device is used for nitrogen protection of product before pressing plug, and also blows air into the bottle, but the position of blowing hole is directly blown into the bottle, and the large blowing hole makes the medicine powder in the bottle fly up, which affects the pressing plug and product sealing. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of blowing structure and nitrogen filling device to alleviate the problem that the second nitrogen filling device of existing powder filling machine equipment blows up the medicine powder in the bottle when blowing, which affects the pressing plug and product sealing.

[0005] In order to solve the above technical problem, the technical scheme provided by the utility model is as follows:

[0006] Firstly, the utility model provides a kind of blowing structure, comprising: nitrogen filling fixed block, the nitrogen filling fixed block has nitrogen filling gas path, the nitrogen filling fixed block is provided with first blowing hole, and the first blowing hole is communicated with the nitrogen filling gas path;

[0007] The first blowing hole has a curved flat structure, and in use, the gas outlet direction of the first blowing hole is opposite to the bottle mouth.

[0008] Further, the first blowing hole includes first air guide section and first blowing section, one end of the first air guide section is communicated with the nitrogen filling gas path, the other end is communicated with the first blowing section, and the first blowing section is opposite to the bottle mouth.

[0009] Further, the first blowing section includes first air duct and second air duct, the first air duct and the second air duct are arranged at an angle, and the first air duct and the second air duct jointly form the curved flat structure.

[0010] Further, the nitrogen filling fixing block is further provided with a second air blowing hole, the second air blowing hole is communicated with the nitrogen filling gas path, the second air blowing hole has a curved flat structure, and in use, the air outlet direction of the second air blowing hole is arranged opposite to the bottle mouth.

[0011] Further, the second air blowing hole comprises a second air guiding section and a second air blowing section, one end of the second air guiding section is communicated with the nitrogen filling gas path, the other end is communicated with the second air blowing section, and the second air blowing section is arranged opposite to the bottle mouth.

[0012] Further, the second air blowing section comprises a third air duct and a fourth air duct, the third air duct and the fourth air duct are arranged at an angle, and the third air duct and the fourth air duct jointly form the curved flat structure.

[0013] Further, the nitrogen filling fixing block is further provided with a third air blowing hole, the third air blowing hole is communicated with the nitrogen filling gas path, and the third air blowing hole is provided with a plugging structure.

[0014] Further, the plugging structure comprises a plugging cap arranged at the air outlet end of the third air blowing hole, and the side wall of the plugging cap is provided with an air outlet hole.

[0015] Further, the nitrogen filling fixing block is further provided with a fourth air blowing hole and a fifth air blowing hole, the fourth air blowing hole and the fifth air blowing hole are both communicated with the nitrogen filling gas path, and in use, the air outlet directions of the fourth air blowing hole and the fifth air blowing hole are both arranged opposite to the bottle body.

[0016] In the second aspect, the utility model provides a kind of nitrogen filling device, comprising the air blowing structure of first aspect.

[0017] The utility model at least has following beneficial effects:

[0018] Since the utility model provides an air blowing structure, comprising: nitrogen filling fixing block, the nitrogen filling fixing block has nitrogen filling gas path, the nitrogen filling fixing block is provided with first air blowing hole, and the first air blowing hole is communicated with the nitrogen filling gas path;The first air blowing hole has a curved flat structure, and in use, the air outlet direction of the first air blowing hole is arranged opposite to the bottle mouth.

[0019] The first blowing hole has a curved flat structure and blows air directly to the bottle mouth, and the curved flat structure has the advantages of larger and more uniform blowing area of the bottle mouth and reduced blowing pressure, which can not only avoid raising the powder in the bottle, but also blow away the small amount of powder remaining on the bottle mouth, and the blown powder is sucked away by the dust collector. The blowing structure improves the product stability by changing the blowing position, reducing the blowing pressure and increasing the blowing area. The structure of the first blowing hole avoids blowing air directly into the vial, the powder is not raised to the bottle mouth, and the sealing of the rubber plug is not affected, thereby ensuring the sterility and product stability of the medicine.

[0020] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the related art, the following will briefly introduce the drawings needed to be used in the specific embodiments or related art descriptions. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 The schematic diagram of the blowing structure provided by the embodiment of the present application Figure 1 ;

[0023] Figure 2 The schematic diagram of the blowing structure provided by the embodiment of the present application Figure 2 ;

[0024] Figure 3 The cross-sectional view of the first blowing hole provided by the embodiment of the present application

[0025] Figure 4 The cross-sectional view of the second blowing hole provided by the embodiment of the present application

[0026] Icon:

[0027] 100-nitrogen filling fixing block; 200-first blowing hole; 210-first air guiding section; 220-first blowing section; 221-first air channel; 222-second air channel; 300-second blowing hole; 310-second air guiding section; 320-second blowing section; 321-third air channel; 322-fourth air channel; 400-third blowing hole; 410-exhaust hole; 500-fourth blowing hole; 600-fifth blowing hole. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. Physical quantities in the formula, such as no separate marking, should be understood as the basic quantity of the basic unit of the International System of Units, or the derived quantity derived from the basic quantity by multiplication, division, differentiation or integration, etc. Mathematical operation.

[0031] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Some embodiments of the present application will be described in detail below in connection with the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict. Among them, Figure 1 Schematic diagram of the blowing structure provided by the embodiment of the present application Figure 1 ; Figure 2 Schematic diagram of the blowing structure provided by the embodiment of the present applicationFigure 2 ; Figure 3 A cross-sectional view of the first blowing hole provided by the embodiment of the present application; Figure 4 A cross-sectional view of the second blowing hole provided by the embodiment of the present application.

[0034] Embodiment one

[0035] The second nitrogen filling device of the existing powder filling machine device fills nitrogen into the product before plugging, and also blows air into the bottle, but the position of the blowing hole is directly blowing into the bottle, and the large blowing hole can make the medicine powder in the vial fly up, and the medicine powder falling in the bottle opening can affect the plugging and the product sealing.

[0036] Therefore, the embodiment of the present application provides a blowing structure, which comprises: a nitrogen filling fixing block 100, the nitrogen filling fixing block 100 has a nitrogen filling gas path, the nitrogen filling fixing block 100 is provided with a first blowing hole 200, and the first blowing hole 200 is in communication with the nitrogen filling gas path; the first blowing hole 200 has a curved flat structure, and in the use state, the gas outlet direction of the first blowing hole 200 is opposite to the bottle opening.

[0037] The first blowing hole 200 has a curved flat structure and blows air directly opposite to the bottle opening, the curved flat structure has the advantages that the area of the bottle opening is larger and more uniform, and the blowing pressure is reduced, which can not only avoid the medicine powder in the bottle from flying up, but also blow away the small amount of powder remaining in the bottle opening, and the blown powder can be sucked away by the dust collector. The blowing structure improves the product stability by changing the blowing position, reducing the blowing pressure and increasing the blowing area. The structure of the first blowing hole 200 avoids blowing air directly into the vial, the medicine powder will not fly up to the bottle opening, and the sealing of the rubber plug will not be affected, thereby ensuring the sterility and stability of the medicine.

[0038] In an optional manner of the embodiment, the first blowing hole 200 comprises a first air guiding section 210 and a first blowing section 220, one end of the first air guiding section 210 is in communication with the nitrogen filling gas path, the other end is in communication with the first blowing section 220, and the first blowing section 220 is arranged opposite to the bottle opening.

[0039] Please refer to Figure 2 , the first air guiding section 210 introduces nitrogen into the first blowing section 220 through the nitrogen filling gas path, and the nitrogen blows air to the bottle opening through the first blowing section 220. Since the first blowing section 220 has a curved flat structure, the area of the bottle opening is larger and more uniform, and the blowing pressure is reduced, which can not only avoid the medicine powder in the bottle from flying up, but also blow away the small amount of powder remaining in the bottle opening.

[0040] Further, the first blowing section 220 comprises a first air duct 221 and a second air duct 222, the first air duct 221 and the second air duct 222 are arranged at an angle, and the first air duct 221 and the second air duct 222 jointly form a curved flat structure.

[0041] Please see Figure 3 , the cross section of the first blowing section 220 passes through the first air duct 221 and the second air duct 222 to form a curved flat structure, when nitrogen gas passes through the curved flat structure to blow towards the bottle opening, the blowing area of the bottle opening is larger than that of the common blowing hole and the blowing is more uniform, which can avoid the medicine powder in the bottle from being stirred up to affect the sealing of the rubber plug, and the remaining medicine powder on the bottle opening can be blown off before the rubber plug is pressed.

[0042] In an optional mode of the embodiment, the nitrogen filling fixing block 100 is further provided with a second blowing hole 300, the second blowing hole 300 is in communication with the nitrogen filling gas path, the second blowing hole 300 has a curved flat structure, and in the use state, the gas outlet direction of the second blowing hole 300 is opposite to the bottle opening.

[0043] The second blowing hole 300 also has a curved flat structure and blows towards the bottle opening, and after cooperating with the first blowing hole 200 to blow, the blowing area of the bottle opening is further increased and will be more uniform, which can not only avoid stirring up the powder in the bottle, but also blow off a small amount of powder remaining on the bottle opening, and the blown powder can be sucked away by the dust collector.

[0044] In an optional mode of the embodiment, the second blowing hole 300 includes a second air guiding section 310 and a second blowing section 320, one end of the second air guiding section 310 is in communication with the nitrogen filling gas path, the other end is in communication with the second blowing section 320, and the second blowing section 320 is opposite to the bottle opening.

[0045] Please see Figure 2 , the second air guiding section 310 introduces nitrogen gas into the second blowing section 320 through the nitrogen filling gas path, and the nitrogen gas blows towards the bottle opening through the second blowing section 320. Since the second blowing section 320 also has a curved flat structure, after cooperating with the first blowing section 220 to blow at the same time, the blowing area of the bottle opening is further increased and will be more uniform, which can more completely blow off a small amount of powder remaining on the bottle opening.

[0046] Further, the second blowing section 320 includes a third air duct 321 and a fourth air duct 322, the third air duct 321 and the fourth air duct 322 are arranged at an angle, and the third air duct 321 and the fourth air duct 322 jointly form a curved flat structure.

[0047] Please see Figure 4 , the cross section of the second blowing section 320 passes through the third air duct 321 and the fourth air duct 322 to form a curved flat structure, when nitrogen gas passes through the curved flat structure to blow towards the bottle opening, the blowing area of the bottle opening is larger than that of the common blowing hole and the blowing is more uniform, which can avoid the medicine powder in the bottle from being stirred up to affect the sealing of the rubber plug, and the remaining medicine powder on the bottle opening can be blown off before the rubber plug is pressed.

[0048] In an optional mode of the embodiment, the nitrogen filling fixing block 100 is further provided with a third blowing hole 400, the third blowing hole 400 is communicated with the nitrogen filling gas path, and the third blowing hole 400 is provided with a plugging structure.

[0049] Please refer to Figure 2 The plugging structure of the third blowing hole 400 blocks the blowing port at the top, blows out through the side, can make the blowing of the first blowing hole 200 and the second blowing hole 300 relatively small, reduces the blowing pressure of the first blowing hole 200 and the second blowing hole 300, and avoids the powder flying caused by the blowing of the first blowing hole 200 and the second blowing hole 300 being too large after the third blowing hole 400 is completely blocked.

[0050] Specifically, the plugging structure includes a plugging cap provided at the gas outlet end of the third blowing hole 400, and the side wall of the plugging cap is provided with an exhaust hole 410.

[0051] Please refer to Figure 2 The plugging cap is arranged at the gas outlet top of the third blowing hole 400, and the exhaust hole 410 is arranged on the side wall of the plugging cap. The exhaust hole 410 is used for exhausting, and the blowing port at the top is blocked. The arrangement of the plugging cap and the exhaust hole 410 reduces the blowing pressure of the first blowing hole 200 and the second blowing hole 300, and also avoids the powder flying caused by the blowing of the first blowing hole 200 and the second blowing hole 300 being too large after the third blowing hole 400 is completely blocked.

[0052] In an optional mode of the embodiment, the nitrogen filling fixing block 100 is further provided with a fourth blowing hole 500 and a fifth blowing hole 600, the fourth blowing hole 500 and the fifth blowing hole 600 are communicated with the nitrogen filling gas path, and in the use state, the gas outlet directions of the fourth blowing hole 500 and the fifth blowing hole 600 are opposite to the bottle body.

[0053] Please refer to Figure 1 The fourth blowing hole 500 and the fifth blowing hole 600 blow gas towards the bottle body, which can blow off the medicine powder of the bottle body, and then the dust collector is used to suck away the medicine powder.

[0054] The blowing structure changes the blowing position, reduces the blowing pressure, and increases the bottle opening area. The blowing port of the curved flat structure can avoid the medicine powder in the penicillin bottle being raised to affect the sealing property of the rubber plug. The nitrogen filling demand of the product itself can be well met, the medicine powder remaining in the bottle opening can be blown off before the rubber plug is pressed, the sealing property of the rubber plug is ensured, the sterile risk of the product caused by the sealing property problem is reduced, and the product stability is improved.

[0055] Embodiment two

[0056] The embodiment of the utility model provides a kind of nitrogen filling device, including the blowing structure of embodiment one. Since nitrogen filling device includes the structure of all structure components of blowing structure, it has all beneficial effects described in embodiment one, which will not be repeated here.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A blow structure characterized by, The nitrogen filling fixing block has a nitrogen filling gas path, and is provided with a first gas blowing hole in communication with the nitrogen filling gas path. The first gas blowing hole has a curved flat structure, and in use, the gas outlet direction of the first gas blowing hole is directly opposite to the bottle mouth.

2. The gas blowing structure according to claim 1, wherein the first gas blowing hole comprises a first gas guiding section and a first gas blowing section, one end of the first gas guiding section is in communication with the nitrogen filling gas path, and the other end is in communication with the first gas blowing section, and the first gas blowing section is directly opposite to the bottle mouth.

3. The gas blowing structure according to claim 2, wherein the first gas blowing section comprises a first gas channel and a second gas channel, and the first gas channel and the second gas channel are arranged at an angle, and the first gas channel and the second gas channel jointly form the curved flat structure.

4. The gas blowing structure according to claim 1, wherein the nitrogen filling fixing block is further provided with a second gas blowing hole in communication with the nitrogen filling gas path, and the second gas blowing hole has a curved flat structure, and in use, the gas outlet direction of the second gas blowing hole is directly opposite to the bottle mouth.

5. The gas blowing structure according to claim 4, wherein the second gas blowing hole comprises a second gas guiding section and a second gas blowing section, one end of the second gas guiding section is in communication with the nitrogen filling gas path, and the other end is in communication with the second gas blowing section, and the second gas blowing section is directly opposite to the bottle mouth.

6. The gas blowing structure according to claim 5, wherein the second gas blowing section comprises a third gas channel and a fourth gas channel, and the third gas channel and the fourth gas channel are arranged at an angle, and the third gas channel and the fourth gas channel jointly form the curved flat structure.

7. The gas blowing structure according to claim 4, wherein the nitrogen filling fixing block is further provided with a third gas blowing hole in communication with the nitrogen filling gas path, and the third gas blowing hole is provided with a plugging structure.

8. The gas blowing structure according to claim 7, wherein the plugging structure comprises a plugging cap arranged at the gas outlet end of the third gas blowing hole, and the side wall of the plugging cap is provided with a gas discharge hole.

9. The gas blowing structure according to claim 7, wherein the nitrogen filling fixing block is further provided with a fourth gas blowing hole and a fifth gas blowing hole, and the fourth gas blowing hole and the fifth gas blowing hole are both in communication with the nitrogen filling gas path, and in use, the gas outlet directions of the fourth gas blowing hole and the fifth gas blowing hole are both directly opposite to the bottle body. The gas blowing structure according to any one of claims 1-9. ​ ​ ​ ​ ​ ​ ​ ​ 10. A nitrogen charging device characterized by comprising: ​