Liquid filling and inflating integrated needle head

Abstract

The utility model discloses a liquid filling and inflating integrated needle head, which relates to the technical field of medicine filling and is characterized in that the bottom of a needle tube is integrally connected with a needle head body, the outer wall of the needle head body is provided with an assembling mechanism, the assembling mechanism comprises a liquid medicine connecting chuck, and the liquid medicine connecting chuck is provided with a liquid medicine filling hole. The bottom of the liquid medicine connecting chuck is integrally connected to the top of the needle tube, a gas connector is integrally connected to the upper portion of the right side of the outer wall of the needle tube, and a gas-liquid dispersing mechanism is arranged at the bottom of the needle head body. And related requirements of medicine production quality management specifications on equipment in direct contact with medicines are met, and filled gas is uniformly dispersed.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine filling, and more specifically, to a liquid filling and inflation integrated needle. Background Art

[0002] Liquid filling is widely used in various industries, including food, pharmaceuticals, daily chemicals, and oils, and can fill a variety of high-viscosity fluids. Pharmaceuticals are special commodities with very high quality requirements. Many pharmaceuticals will oxidize and decompose during production and storage, resulting in a decrease in content, ultimately reducing therapeutic effects, and even causing additional adverse reactions. Therefore, many pharmaceuticals require the addition of inert gas nitrogen during the production process to protect the drugs and prevent oxidation.

[0003] Existing filling and inflation needles are composite in form, and the prior art is mostly similar to a liquid medicine filling needle with an air-conducting layer. Patent number CN201296643Y includes a needle sleeve, a needle tube, and a needle tube seat. The needle sleeve is characterized in that it is a hollow cylindrical shape and is located at the tail of the needle tube. The tail of the needle sleeve is provided with a liquid medicine inlet. The needle tube is double-walled from the needle tube seat to the tip of the needle tube, wherein the core is a liquid guide channel, and its outer layer is an air-conducting layer. The tip of the needle tube is provided with an air outlet and a liquid outlet corresponding to the air-conducting layer and the liquid guide channel, respectively. The inner cavity of the needle tube seat is hollow and has a diameter larger than the needle sleeve and needle tube. One side of the needle tube seat is provided with a nitrogen inlet that is connected to the air-conducting layer. This utility model avoids micro-mixing and micro-contamination of the medicine, improves production efficiency, and reduces production costs. However, there are still areas that can be optimized.

[0004] Existing filling needles are constructed from separate parts assembled using interference fits. However, this assembly method creates blind spots at the joints of the needle's structural components, resulting in failure to meet requirements for online cleaning and sterilization. Furthermore, some needles are limited in length, making it impossible to achieve aeration below the drug liquid level or at the liquid surface boundary. Furthermore, the lack of a good gas diversion design prevents these products from meeting existing drug production process requirements. Therefore, to address the aforementioned technical issues, this application proposes an integrated liquid filling and aeration needle. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a liquid filling and inflation integrated needle.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a needle tube, the bottom of the needle tube is integrally connected to a needle body, the outer wall of the needle body is provided with a mounting mechanism, the mounting mechanism includes a liquid medicine connection chuck, the bottom of the liquid medicine connection chuck is integrally connected to the top of the needle tube, a gas connector is integrally connected to the upper right side of the outer wall of the needle tube, and the bottom of the needle body is provided with a gas-liquid dispersion mechanism.

[0007] Preferably, the shape of the liquid medicine connection chuck is an inverted truncated cone, and a sealing ring groove is provided on the top of the liquid medicine connection chuck.

[0008] Preferably, the gas connector has a pagoda-shaped appearance, and the needle tube and the needle body are electropolished as a whole to have an inner surface roughness less than Ra0.4.

[0009] Preferably, a rack connecting thread is provided below the outer wall of the needle tube.

[0010] Preferably, a limiting ring is provided on the outer wall of the needle tube above the rack connecting thread.

[0011] Preferably, the gas-liquid dispersion mechanism comprises a gas-liquid dispersion head, which is provided at the bottom of the needle body, and an exhaust groove is provided below the outer wall of the gas-liquid dispersion head.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model adopts integrated casting, which is more concise in structure. The various parts of the needle are integrated into a whole, which meets the relevant requirements of online cleaning and online sterilization, effectively avoids the cleaning dead corner problem caused by the assembly connection of the existing needle, and improves the cleanliness and practicality of the device.

[0014] 2. The present invention uses the same needle tube for filling and aeration of liquid and gas, allowing the liquid medicine and the filling gas to be fully mixed within the tube, meeting the production process requirements for specific drugs (drugs that cannot be added with deoxidizers). Unlike existing needle-based gas and liquid filling methods, this method allows the gas and liquid medicine to be mixed and replaced within the needle tube, facilitating full mixing and replacement of gas and liquid in a small volume, improving the efficiency and practicality of the device.

[0015] 3. In the utility model, through the structures such as the liquid medicine connection chuck, gas connection head, sealing ring groove, frame connection thread and limit ring in the installation mechanism, the liquid medicine connection chuck is used to seal and clamp the needle tube to the liquid medicine delivery connector, the gas connection head is used to seal and clamp the needle tube to the inflation delivery connector, the frame connection thread and the limit ring are used to stably install the needle tube in the threaded hole of the equipment frame, and effectively control the installation height of the needle body, so that the precise length of the needle body can be located at the liquid surface boundary point after filling, thereby improving the convenience and practicality of the device.

[0016] 4. In the present invention, the structure of the gas-liquid dispersion head in the gas-liquid dispersion mechanism allows the gas to be discharged through the exhaust groove of the gas-liquid dispersion head, which is conducive to better dispersion of the exhaust gas on the filling liquid surface, facilitates the subsequent purging and replacement of the air in the bottle, and improves the efficiency and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a front and side perspective view of the structure of the present invention;

[0019] Figure 2 This is a front view sectional perspective diagram of the structure of the present utility model;

[0020] Figure 3 This is a front sectional perspective view of the local structure of the needle and the attachment mechanism of the utility model;

[0021] Figure 4 This is a bottom-up stereoscopic view of the partial structure of the needle and gas-liquid dispersion mechanism of the utility model.

[0022] 11. Needle tube; 12. Needle body; 13. Liquid medicine connection chuck; 14. Gas connection head; 2. Mounting mechanism; 21. Sealing ring groove; 22. Frame connection thread; 23. Limiting ring; 3. Gas-liquid dispersion mechanism; 31. Gas-liquid dispersion head. DETAILED DESCRIPTION

[0023] like Figure 1-4 As shown, the utility model provides an integrated liquid filling and inflation needle, including a needle tube 11, the bottom of the needle tube 11 is integrally connected to a needle body 12, the outer wall of the needle body 12 is provided with a mounting mechanism 2, the mounting mechanism 2 includes a liquid medicine connecting chuck 13, the bottom of the liquid medicine connecting chuck 13 is integrally connected to the top of the needle tube 11, and a gas connector 14 is integrally connected to the upper right side of the outer wall of the needle tube 11.

[0024] The shape of the liquid medicine connecting chuck 13 is an inverted cone, and a sealing ring groove 21 is provided on the top of the liquid medicine connecting chuck 13. Through this design, the needle tube 11 and the liquid medicine delivery connector are sealed and clamped together. The shape of the gas connecting head 14 is pagoda-shaped. The needle tube 11 and the needle body 12 are electropolished as a whole to make their inner surface roughness less than Ra0.4. Through this design, the needle tube 11 and the inflation delivery connector are sealed and clamped together. A frame connecting thread 22 is provided below the outer wall of the needle tube 11. Through this design, the needle tube 11 can be stably installed in the threaded hole of the equipment frame. A limit ring 23 is provided on the outer wall of the needle tube 11 above the frame connecting thread 22. Through this design, the installation position of the needle tube 11 is limited, and the installation height of the needle body 12 is effectively controlled so that the precise length of the needle body 12 can be located at the boundary point of the liquid surface after filling.

[0025] A gas-liquid dispersion mechanism 3 is provided at the bottom of the needle body 12. The gas-liquid dispersion mechanism 3 includes a gas-liquid dispersion head 31. The gas-liquid dispersion head 31 is provided at the bottom of the needle body 12. An exhaust groove is provided under the outer wall of the gas-liquid dispersion head 31. Through this design, better dispersion of the gas on the filling liquid surface is achieved, which facilitates the subsequent purging and replacement of the air in the bottle.

[0026] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A liquid filling and inflation integrated needle, comprising a needle tube (11), characterized in that: The bottom of the needle tube (11) is integrally connected to a needle body (12), the outer wall of the needle body (12) is provided with a mounting mechanism (2), the mounting mechanism (2) comprises a liquid medicine connection chuck (13), the bottom of the liquid medicine connection chuck (13) is integrally connected to the top of the needle tube (11), a gas connector (14) is integrally connected to the upper right side of the outer wall of the needle tube (11), and a gas-liquid dispersion mechanism (3) is provided at the bottom of the needle body (12).

2. The integrated liquid filling and inflation needle according to claim 1, characterized in that: The shape of the liquid medicine connection chuck (13) is an inverted truncated cone, and a sealing ring groove (21) is provided on the top of the liquid medicine connection chuck (13).

3. The integrated liquid filling and inflation needle according to claim 1, characterized in that: The gas connection head (14) has a pagoda-shaped appearance, and the needle tube (11) and the needle body (12) are electropolished as a whole so that the inner surface roughness is less than Ra0.

4.

4. The integrated liquid filling and inflation needle according to claim 1, characterized in that: A frame connecting thread (22) is provided below the outer wall of the needle tube (11).

5. The integrated liquid filling and inflation needle according to claim 4, characterized in that: The outer wall of the needle tube (11) is provided with a limiting ring (23) above the frame connecting thread (22).

6. The integrated liquid filling and inflation needle according to claim 1, characterized in that: The gas-liquid dispersion mechanism (3) comprises a gas-liquid dispersion head (31), which is arranged at the bottom of the needle body (12), and an exhaust groove is provided below the outer wall of the gas-liquid dispersion head (31).

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