Liquid medicine filling device

Abstract

The utility model provides a kind of liquid medicine filling device, comprising: perfusion unit, the perfusion unit includes fixed rod and the several groups of perfusion catheter of being set on fixed rod;The perfusion catheter includes liquid guide pipe and nested cylinder, the liquid guide pipe and nested cylinder are elastically connected;Conveying unit, the conveying unit includes the feeding guide rail for conveying medicine bottle and the first clamp and second clamp being set on the both sides of feeding guide rail, first clamp and second clamp are clamped and lift the medicine bottle on feeding guide rail, the medicine bottle is lifted in the process and lifts nested cylinder, the liquid guide pipe is inserted inside medicine bottle, the nested cylinder is equipped with main sealing element and is equipped with the discharge port of the liquid guide pipe side wall apart;The end face sealing unit equipped with on the nested cylinder is supported at the end face of medicine bottle, and the end face sealing unit is connected with nested cylinder magnetic suction connection.The nested cylinder and end face sealing unit provided by the utility model adopt magnetic suction connection mode, reduce the need of the nested cylinder and carry out overall disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical liquid filling technology, and in particular relates to a pharmaceutical liquid filling device. Background Technology

[0002] Liquid medicine filling mainly involves using filling equipment to release liquid medicine into the medicine bottle. The mainstream method now is to use negative pressure reflux. The principle is to create a negative pressure environment inside the medicine bottle. During the filling process, the negative pressure vacuum tube and the liquid injection tube are inserted into the medicine bottle at the same time. The negative pressure environment is used to prevent air from being trapped inside the medicine.

[0003] Currently, the process of constructing a negative pressure environment here requires the medicine bottle and the injection equipment to form a certain sealing effect, which is conducive to the construction of the end face sealing unit environment. At present, most of the seals on the injection equipment adopt a fixed design. When the specifications of the medicine bottle change, the sealing effect will be insufficient due to insufficient adaptation. When it is necessary to switch production, the entire injection equipment needs to be replaced. Utility Model Content

[0004] This utility model provides a liquid medicine filling device, which is implemented as follows: A liquid medicine filling device includes:

[0005] The infusion unit includes a fixed rod and several sets of infusion conduits disposed on the fixed rod; the infusion conduit includes a liquid guide tube and a nested tube, the liquid guide tube and the nested tube being elastically connected.

[0006] The conveying unit includes a feeding guide rail for conveying medicine bottles and a first clamp and a second clamp disposed on both sides of the feeding guide rail. The first clamp and the second clamp clamp and lift the medicine bottles on the feeding guide rail. During the lifting process, the medicine bottles push up the nesting cylinder. The liquid guide tube is inserted into the inside of the medicine bottle. The nesting cylinder is provided with a main sealing element and an outlet provided away from the side wall of the liquid guide tube. The end face sealing unit provided on the nesting cylinder abuts against the end face of the medicine bottle. The end face sealing unit is magnetically connected to the nesting cylinder.

[0007] Preferably, the end face sealing unit is provided with a nesting groove, and the end face sealing unit is nested at the bottom of the nesting cylinder.

[0008] Preferably, the nested cylinder has a first side magnetic ring on its side wall, a second end face magnetic ring on its bottom, a first fixed magnetic ring on its side wall, and a second fixed magnetic ring on its bottom. The first side magnetic ring is magnetically connected to the first fixed magnetic ring, and the second end face magnetic ring is magnetically connected to the second fixed magnetic ring.

[0009] Preferably, the outer wall of the nested cylinder is further provided with a secondary seal, the side wall of the nested groove is provided with a sealing groove, and the secondary seal engages with the sealing groove when the end face sealing unit is nested outside the nested cylinder.

[0010] Preferably, the nested cylinder has a spring groove at the end away from the end face sealing unit, a return spring is provided on the outer wall of the liquid guide tube, and a limiting ring is also provided on the outer wall of the liquid guide tube. One end of the return spring abuts against the limiting ring, and the other end abuts against the spring groove.

[0011] Preferably, a sealing rubber ring is provided on the outer side of the end face sealing unit. When the medicine bottle rises, it lifts the nesting cylinder, and the sealing rubber ring is pressed against the mouth of the medicine bottle.

[0012] Compared with the prior art, the embodiments of this application have the following main advantages:

[0013] The medicine filling device provided by this utility model uses a magnetic connection between the nested cylinder and the end face sealing unit, which facilitates the separation of the end face sealing unit. When the diameter of the bottle opening changes and different end face sealing units need to be replaced, the assembly of different models of end face sealing units can be completed quickly, reducing the need for overall disassembly and assembly of the nested cylinder and improving the assembly efficiency during equipment conversion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a liquid medicine filling device provided by this utility model.

[0015] Figure 2 This is a schematic diagram of the filling conduit and medicine bottle structure of a liquid filling device provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the filling conduit of a liquid filling device provided by this utility model.

[0017] Figure 4 This is a structural schematic diagram of the nested cylinder and end-face sealing unit in a liquid filling device provided by this utility model.

[0018] Figure 5 This is a schematic diagram of the end face sealing unit structure of a liquid filling device provided by this utility model.

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the end face sealing unit of a liquid filling device provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Infusion tubing; 110. Liquid guide tube; 111. Limiting ring; 112. Return spring; 120. Nested cylinder; 121. Spring groove; 122. Main seal; 123. Secondary seal; 124. First side magnetic ring; 125. Second end face magnetic ring; 130. End face sealing unit; 131. Nested groove; 132. First fixing magnetic ring; 133. Second fixing magnetic ring; 134. Sealing rubber ring; 135. Sealing groove; 150. Gas guide tube; 200. Fixing rod; 310. First clamp; 320. Second clamp; 400. Medicine bottle. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model embodiment provides a medicine filling device, such as... Figures 1-6 As shown, the liquid medicine filling device includes:

[0025] The infusion unit includes a fixed rod 200 and several sets of infusion conduits 100 disposed on the fixed rod 200. Each infusion conduit 100 includes a liquid guide tube 110 and a nested cylinder 120. The nested cylinder 120 has a spring groove 121 at one end away from the end-face sealing unit 130. A return spring 112 is provided on the outer wall of the liquid guide tube 110, and a limiting ring 111 is also provided on the outer wall of the liquid guide tube 110. One end of the return spring 112 abuts against the limiting ring 111, and the other end abuts against the spring groove 121. An air guide tube 150 is provided inside the liquid guide tube 110, and an inlet is provided on the side wall of the liquid guide tube 110. The air guide tube 150 penetrates the entire liquid guide tube 110.

[0026] The conveying unit includes a feeding guide rail for conveying medicine bottles 400 and a first clamp 310 and a second clamp 320 disposed on both sides of the feeding guide rail. The first clamp 310 and the second clamp 320 clamp and lift the medicine bottles 400 on the feeding guide rail. During the rising process, the medicine bottles 400 push up the nesting cylinder 120, and the liquid guide tube 110 is inserted into the inside of the medicine bottles 400.

[0027] The medicine to be added enters the inner wall of the air guide tube and the liquid guide tube 110, and is sent into the medicine bottle 400 along the discharge port provided on the side wall of the liquid guide tube 110. When the medicine bottle 400 does not lift the nesting cylinder 120, the main sealing element 122 provided on the inner wall of the nesting cylinder 120 blocks the discharge port provided on the side wall of the liquid guide tube 110.

[0028] The above-mentioned filling structure principle mainly utilizes the existing negative pressure reflux filling technology. The air guide tube 150 and the liquid guide tube 110 are simultaneously inserted into the medicine bottle 400, and are held against the end face of the medicine bottle 400 by the end face sealing unit 130 on the nested cylinder 120. The air guide tube 150 set in the liquid guide tube 110 creates a negative pressure state inside the medicine bottle 400, allowing the liquid medicine in the liquid guide tube 110 to smoothly enter the medicine bottle 400.

[0029] The first clamp 310, the second clamp 320, and the feeding guide mentioned here are existing linear filling technologies. The first clamp 310 and the second clamp 320 first move towards each other to clamp the neatly arranged medicines. Then, under the action of the lifting structure, they are lifted and disengaged from the feeding guide. As the medicine bottle 400 rises, the nested cylinder 120 moves, and the main seal 122 leaves the outlet provided on the side wall of the liquid guide tube 110. The droplets in the liquid guide tube 110 will enter the inside of the medicine bottle 400. The design of the main seal 122 and the outlet adopts existing technical means.

[0030] In this application, the end-face sealing unit 130 provided on the nesting cylinder 120 abuts against the end face of the medicine bottle 400. The end-face sealing unit 130 is magnetically connected to the nesting cylinder 120. The end-face sealing unit 130 seals the mouth of the medicine bottle 400 to form an end-face sealing unit environment, which facilitates the quick construction of a negative pressure environment. Here, the nesting cylinder 120 and the end-face sealing unit 130 are connected by magnetic attraction, which facilitates the separation of the end-face sealing unit 130. When the diameter of the mouth of the medicine bottle 400 changes and different end-face sealing units 130 need to be replaced, the assembly of different models of end-face sealing units 130 can be completed quickly, reducing the need for overall disassembly and assembly of the nesting cylinder 120 and improving the assembly efficiency during equipment conversion.

[0031] The end face sealing unit 130 is provided with a nesting groove 131. The end face sealing unit 130 is nested in the bottom of the nesting cylinder 120. The side wall of the nesting cylinder 120 is provided with a first side magnetic ring 124. The bottom of the nesting cylinder 120 is provided with a second end face magnetic ring 125. The side wall of the nesting groove 131 is provided with a first fixed magnetic ring 132. The bottom of the nesting groove 131 is provided with a second fixed magnetic ring 133. The first side magnetic ring 124 is magnetically connected to the first fixed magnetic ring 132. The second end face magnetic ring 125 is magnetically connected to the second fixed magnetic ring 133.

[0032] In a preferred embodiment of this invention, the outer wall of the nested cylinder 120 is further provided with a secondary seal 123, and the side wall of the nested groove 131 is provided with a sealing groove 135. When the end face sealing unit 130 is nested outside the nested cylinder 120, the secondary seal 123 is engaged with the sealing groove 135.

[0033] In this embodiment, the secondary seal 123 engages with the sealing groove 135 to complete the connection between the end face sealing unit 130 and the nesting cylinder 120, preventing external airflow from entering the medicine bottle 400 through the gap between the nesting cylinder 120 and the end face sealing unit 130. The first side magnetic ring 124, the second end face magnetic ring 125, the first fixed magnetic ring 132, and the second fixed magnetic ring 133 cooperate with each other to complete the connection between the nesting cylinder 120 and the end face sealing unit 130. Under normal circumstances, the nesting cylinder 120 and the end face sealing unit 130 move accordingly.

[0034] In a preferred embodiment of this invention, a sealing rubber ring 134 is provided on the outer side of the end face sealing unit 130. During the upward movement of the medicine bottle 400, the nesting cylinder 120 is lifted up, and the sealing rubber ring 134 is pressed against the mouth of the medicine bottle 400.

[0035] When the sealing rubber ring 134 is unable to seal the mouth of the medicine bottle 400 due to aging or size, the end face sealing unit 130 is replaced as a whole to meet the sealing requirements of the equipment processing.

[0036] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A liquid medicine filling device, characterized in that, include: The infusion unit includes a fixed rod and several sets of infusion conduits disposed on the fixed rod; the infusion conduit includes a liquid guide tube and a nested tube, the liquid guide tube and the nested tube being elastically connected. The conveying unit includes a feeding guide rail for conveying medicine bottles and a first clamp and a second clamp disposed on both sides of the feeding guide rail. The first clamp and the second clamp clamp and lift the medicine bottles on the feeding guide rail. During the lifting process, the medicine bottles push up the nesting cylinder. The liquid guide tube is inserted into the inside of the medicine bottle. The nesting cylinder is provided with a main sealing element and an outlet provided away from the side wall of the liquid guide tube. The end face sealing unit provided on the nesting cylinder abuts against the end face of the medicine bottle. The end face sealing unit is magnetically connected to the nesting cylinder.

2. The liquid medicine filling device as described in claim 1, characterized in that, The end face sealing unit is provided with a nesting groove, and the end face sealing unit is nested at the bottom of the nesting cylinder.

3. The liquid medicine filling device as described in claim 2, characterized in that, The nested cylinder has a first side magnetic ring on its side wall and a second end face magnetic ring on its bottom. The nested groove has a first fixed magnetic ring on its side wall and a second fixed magnetic ring on its bottom. The first side magnetic ring and the first fixed magnetic ring are magnetically connected, and the second end face magnetic ring and the second fixed magnetic ring are magnetically connected.

4. The liquid medicine filling device as described in claim 3, characterized in that, The outer wall of the nested cylinder is also provided with a secondary seal, and the side wall of the nested groove is provided with a sealing groove. When the end face sealing unit is nested on the outside of the nested cylinder, the secondary seal is engaged with the sealing groove.

5. A liquid medicine filling device as described in claim 4, characterized in that, The nested cylinder has a spring groove at the end away from the end face sealing unit, the outer wall of the liquid guide tube has a reset spring, and the outer wall of the liquid guide tube also has a limiting ring. One end of the reset spring abuts against the limiting ring, and the other end abuts against the spring groove.

6. The liquid medicine filling device as described in claim 5, characterized in that, The outer side of the end face sealing unit is provided with a sealing rubber ring. When the medicine bottle rises, it lifts the nesting cylinder, and the sealing rubber ring is pressed against the mouth of the medicine bottle.

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