Novel vacuum plugging mechanism special for pre-filling needle

Abstract

The utility model belongs to the technical field of novel vacuum plugging mechanisms special for pre-filling needles, and particularly relates to a novel vacuum plugging mechanism special for pre-filling needles, which comprises a plugging block assembly, a plugging block assembly is arranged on the outer wall of the plugging block assembly, the plugging block assembly comprises a plugging block, and a rubber plug is placed on the outer wall of the plugging block. According to the novel vacuum plug adding mechanism special for the pre-filling needle, stable plug adding operation on a rubber plug is achieved through the plug adding assembly, the vacuum degree in the plug suction pipe is controlled through the first negative pressure connector, it is ensured that the rubber plug is firmly adsorbed to the plug suction head, in the plug adding process, along with downward movement of the mechanism, the rubber plug is smoothly inserted into a container, and the plug adding efficiency is improved. Meanwhile, the sealing performance between the movable shaft and the plug suction pipe is enhanced through the O-shaped sealing ring, sealing and plug pressing can be conducted synchronously through the compression spring, the interior of a container is vacuumized through the second negative pressure connector, air in a bottle is effectively removed, the needed vacuum degree is achieved, and the shelf life of products can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel vacuum plug -in mechanism special for pre -filled needle technical field, concretely is a novel vacuum plug -in mechanism special for pre -filled needle. BACKGROUND

[0002] The higher demand of the vacuum plug -in mechanism special for pre -filled needle to the sterility, stability and production efficiency of pre -filled needle product, this technology is improved and innovated through introducing vacuum principle on the basis of traditional plug -in mode to satisfy the special demand of biological pharmaceutical industry.

[0003] At present, the traditional pre -filled needle plug -in mode is mainly mechanical plug -in, also called sleeve plug -in or sliding plug -in, in this method, first, the rubber plug is compressed in the plug -in sleeve of the filling equipment, then the plug -in sleeve is inserted into the syringe, when the plug -in sleeve is taken out from the syringe, a plug -in rod pushes the rubber plug out from the plug -in sleeve, then the rubber plug expands naturally to fill the inner diameter of the matched syringe, however, this method needs the plug -in rod to push the rubber plug into the syringe with larger force, which can cause the surface coating of the rubber plug to be damaged, affect the sealing and stability of the product, in view of this, a novel vacuum plug -in mechanism special for pre -filled needle is provided. SUMMARY

[0004] The main purpose of the utility model is to provide a novel vacuum plug -in mechanism special for pre -filled needle, which can solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the novel vacuum plug -in mechanism special for pre -filled needle provided by the utility model comprises a plug block assembly, a plug -in assembly is arranged on the outer wall of the plug block assembly, and the plug block assembly comprises:

[0006] The plug -in block is placed with a rubber plug on the outer wall.

[0007] Preferably, the plug -in assembly comprises a mounting shaft, a movable shaft is slidably connected to the inner wall of the mounting shaft, a suction plug pipe is fixedly connected to the outer wall of the mounting shaft, the suction plug pipe penetrates the mounting shaft and is slidably connected with the movable shaft, and a gas hole is formed in the outer wall of the mounting shaft.

[0008] Preferably, a compression spring is sleeved on the outer wall of the suction plug pipe, one end of the compression spring is fixedly connected to the inner wall of the mounting shaft, and the other end of the compression spring is fixedly connected to the outer wall of the movable shaft, the compression spring provides elastic force for the movable shaft, so that the movable shaft can quickly reset to the initial position after plug -in or plug removal is completed, and the compression spring can make the sealing and plug pressing synchronous, and the whole process can be completed in one action.

[0009] Preferably, the outer wall of the suction pipe is sleeved with an O-shaped sealing ring, and the O-shaped sealing ring is in abutment with the movable shaft, the outer wall of the suction pipe is provided with a suction head, and the suction head is matched with the rubber plug.

[0010] Preferably, the outer wall of the suction pipe is sleeved with an O-shaped sealing ring, and the O-shaped sealing ring is in abutment with the movable shaft, the outer wall of the suction pipe is provided with a suction head, and the suction head is matched with the rubber plug.

[0011] Preferably, the outer wall of the suction pipe is sleeved with an O-shaped sealing ring, and the O-shaped sealing ring is in abutment with the movable shaft, the outer wall of the suction pipe is provided with a suction head, and the suction head is matched with the rubber plug.

[0012] The utility model provides a novel vacuum capping mechanism special for pre-filled needle, which has the following advantages:

[0013] (1), the novel vacuum capping mechanism special for pre-filled needle realizes stable capping operation of the rubber plug through the use of the capping assembly, controls the vacuum degree in the suction pipe through the negative pressure connector one, ensures that the rubber plug is firmly adsorbed on the suction head, and in the capping process, the rubber plug is smoothly inserted into the container along with the downward movement of the mechanism, the compression spring can make the sealing and the capping synchronous, the whole process can be completed in one action, and meanwhile the O-shaped sealing ring effectively enhances the sealing property between the movable shaft and the suction pipe, prevents the interference of external gas, and ensures the stability of the capping process.

[0014] (2), the novel vacuum capping mechanism special for pre-filled needle carries out vacuumizing treatment on the inside of the container through the negative pressure connector two, effectively removes the air in the bottle, reaches the required vacuum degree, helps to prolong the shelf life of the product, reduces the risk of the product affected by the external environment, and provides a safer and more reliable environment for the storage of sensitive products such as medicines. ACCURACY

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is a local sectional structure schematic diagram of the utility modelFigure One ;

[0018] Figure 3 The partial sectional structure of the utility model Figure Two .

[0019] Brief Description of the Drawings

[0020] 1, plug block assembly; 2, plug assembly; 11, plug block; 12, rubber plug; 21, mounting shaft; 211, air hole; 22, movable shaft; 221, sealing gasket; 23, suction plug pipe; 231, negative pressure connector one; 232, negative pressure connector two; 233, suction plug head; 24, O-shaped sealing ring; 25, compression spring.

[0021] The utility model discloses the realization, functional characteristics and advantages will be combined with embodiment, refer to the further illustration of drawing. Specific embodiments

[0022] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings of the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-3 The utility model discloses a kind of new vacuum plug assembly mechanisms special for pre-charging needle, including plug block assembly 1, plug block assembly 1 It is provided with plug assembly 2 on the outer wall of plug block assembly 1, plug block assembly 1 includes plug block 11, rubber plug 12 is placed on the outer wall of plug block 11, and rubber plug 12 is used to seal bottle and other containers.

[0024] Further, the plugging assembly 2 comprises a mounting shaft 21, an inner wall of the mounting shaft 21 is slidingly connected with a movable shaft 22, the movable shaft 22 can slide up and down along the inner wall of the mounting shaft 21 and the outer wall of the suction plug pipe 23 under the action of the compression spring 25, thereby realizing the plugging and unplugging operations of the rubber plug 12, an outer wall of the mounting shaft 21 is fixedly connected with the suction plug pipe 23, the suction plug pipe 23 penetrates the mounting shaft 21 and is slidingly connected with the movable shaft 22, the outer wall of the mounting shaft 21 is provided with an air hole 211, the outer wall of the suction plug pipe 23 is sleeved with the compression spring 25, the compression spring 25 provides elastic force for the movable shaft 22, so that the movable shaft 22 can quickly reset to the initial position after the plugging or unplugging is completed, one end of the compression spring 25 is fixedly connected to the inner wall of the mounting shaft 21, one end of the compression spring 25 is fixedly connected to the outer wall of the movable shaft 22, the end of the movable shaft 22 away from the compression spring 25 is sleeved with a sealing gasket 221, the sealing gasket 221 plays a sealing role when the mechanism contacts the container port, preventing gas or liquid leakage, the outer wall of the suction plug pipe 23 is sleeved with an O-shaped sealing ring 24, and the O-shaped sealing ring 24 abuts against the movable shaft 22, the O-shaped sealing ring 24 enhances the sealing between the movable shaft 22 and the suction plug pipe 23, which helps to maintain the stability of the vacuum environment during the plugging process, preventing external gas from entering or internal gas from leaking, the outer wall of the suction plug pipe 23 is provided with a suction plug head 233, and the suction plug head 233 is matched with the rubber plug 12, the end of the suction plug pipe 23 away from the suction plug head 233 is fixedly connected with a negative pressure connector one 231, and the suction plug pipe 23 communicates with the negative pressure connector one 231, the negative pressure connector one 231 mainly controls the vacuum degree in the suction plug pipe 23, so that the rubber plug 12 can be firmly adsorbed on the suction plug head 233, the suction plug head 233 on the outer wall of the suction plug pipe 23 is used to fix and insert the rubber plug 12, the suction plug pipe 23 is internally connected with the negative pressure connector one 231, and the rubber plug 12 is firmly adsorbed on the suction plug head 233 through vacuum suction, during the plugging process, the suction plug pipe 23 drives the rubber plug 12 to move downward and insert it into the container, the outer wall of the movable shaft 22 is fixedly connected with a negative pressure connector two 232, and the movable shaft 22 communicates with the negative pressure connector two 232, the negative pressure connector two 232 is used to extract the air in the bottle to make it vacuum.

[0025] It should be noted that the above-mentioned electrical components are all products of the prior art, which are selected, installed and debugged by those skilled in the art according to the needs of use, to ensure that each electrical appliance can work normally, and the components are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by technical personnel through technical manual or through conventional experimental method, which is not specifically limited here by the applicant.

[0026] In the utility model, when using, the rubber plug 12 is placed on the outer wall of the plug block 11, and the position thereof is ensured to correspond to the position of the suction plug head 233, at this time, the negative pressure system carries out vacuumizing on the inside of the suction plug pipe 23 through the negative pressure connector one 231, and the suction plug head 233 generates negative pressure, thereby firmly adsorbing the rubber plug 12, the mechanism starts to move downwards, the sealing gasket 221 first contacts the container mouth and plays a sealing role, prevents gas or liquid leakage, along with the continuous moving down of the mechanism, the suction plug pipe 23 drives the adsorbed rubber plug 12 to move downwards together, until the rubber plug 12 is completely inserted into the container, in this process, the O-shaped sealing ring 24 enhances the sealing property between the movable shaft 22 and the suction plug pipe 23, and helps to keep the stability of the vacuum environment, at the same time or after the rubber plug 12 is inserted into the container, the negative pressure system carries out vacuumizing treatment on the inside of the container through the negative pressure connector two 232, so as to remove the air in the bottle, and the required vacuum degree is reached, this step helps to ensure the cleanliness and preservation condition of the inside of the container, after completing the rubber plug and vacuum treatment, the mechanism starts to move upwards, at this time, the elastic force of the compression spring 25 makes the movable shaft 22 quickly reset to the initial position, and simultaneously the suction plug pipe 23 also moves upwards and separates from the rubber plug 12, the compression spring 25 can make the sealing and the rubber plug synchronization, the whole process can be completed in one action, the mechanism restores to the initial state, and prepares for the next rubber plug operation.

[0027] The above only is the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structure transformation of utilizing the utility model specification and the attached drawing contents under the inventive concept of the utility model, or direct / indirect application in other related technical fields all include in the patent protection range of the utility model.

Claims

1. A new type of vacuum stoppering mechanism for pre-filled syringes comprising a stopper assembly (1) characterized by: The outer wall of the plug assembly (1) is provided with a plug assembly (2), the plug assembly (1) comprises: Plug block (11), the outer wall of the plug block (11) is placed with rubber plug (12); The plug assembly (2) comprises a mounting shaft (21), the inner wall of the mounting shaft (21) is slidably connected with a movable shaft (22), the outer wall of the mounting shaft (21) is fixedly connected with a suction plug pipe (23), and the suction plug pipe (23) is slidably connected with the movable shaft (22) through the mounting shaft (21), and the outer wall of the mounting shaft (21) is provided with an air hole (211); The outer wall of the suction plug pipe (23) is sleeved with a compression spring (25), one end of the compression spring (25) is fixedly connected to the inner wall of the mounting shaft (21), and the other end of the compression spring (25) is fixedly connected to the outer wall of the movable shaft (22); The outer wall of the suction plug pipe (23) is sleeved with an O-shaped sealing ring (24), and the O-shaped sealing ring (24) abuts against the movable shaft (22), the outer wall of the suction plug pipe (23) is provided with a suction plug head (233), and the suction plug head (233) is matched with the rubber plug (12); The end of the suction plug pipe (23) away from the suction plug head (233) is fixedly connected with a negative pressure connector one (231), and the suction plug pipe (23) is communicated with the negative pressure connector one (231), and the outer wall of the movable shaft (22) is fixedly connected with a negative pressure connector two (232), and the movable shaft (22) is communicated with the negative pressure connector two (232).

2. A novel vacuum stoppering mechanism for pre-filled syringes as claimed in claim 1, wherein: The end of the movable shaft (22) away from the compression spring (25) is sleeved with a sealing pad (221).

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