A nitrogen filling device for a syringe

Abstract

The utility model discloses a kind of nitrogen filling devices for needle bottle, including support piece, the support piece includes base, and the top of base is fixedly connected with support disc, the top of the left side of support disc is equipped with cross bar, filling needle for carrying out nitrogen filling to needle bottle is equipped on the surface of cross bar, the other end of cross bar is equipped with side plate;Clamping piece, the clamping piece includes rotationally connected in the left side of support disc and symmetrically arranged shaft.The nitrogen filling device for needle bottle, the present application can simultaneously stably hold multiple needle bottles by setting symmetric clamping piece (left clamping plate, right clamping plate) controlled by driving element, cooperate with the multiple filling needle of setting on cross bar, can realize the simultaneous nitrogen filling of a row of needle bottles, which completely changes the intermittent operation mode of traditional "one bottle one filling", changes from serial to parallel for nitrogen filling process, greatly shortens operating time, especially suitable for small and medium batch production, production efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen filling of needle-shaped bottles, specifically a nitrogen filling device for needle-shaped bottles. Background Technology

[0002] As a common form of packaging for small-volume injectable drugs, the residual oxygen in the headspace of syringes is one of the key factors affecting drug stability. In order to extend the shelf life of drugs and prevent the active ingredients from being oxidized, the headspace air inside the bottle usually needs to be replaced after filling and before sealing by filling with inert gases such as high-purity nitrogen. This process is called "nitrogen purging".

[0003] However, current technologies, especially in small and medium-sized production scenarios or laboratory environments, still have significant shortcomings in nitrogen purging of syringes. Currently, the commonly used nitrogen purging methods are mostly manual or semi-automatic single-machine operations. This means that operators need to insert nitrogen-purging needles into each syringe to be processed, completing the filling, purging, and degassing of a single syringe before moving on to the next. This intermittent "one syringe, one purging" operation mode results in a lengthy process and extremely low production efficiency. Therefore, further optimization is needed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a nitrogen filling device for needle-shaped bottles, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen filling device for a syringe bottle, comprising, The support includes a base, a support plate is fixedly connected to the top of the base, a crossbar is provided on the top left side of the support plate, a filling needle for filling the syringe bottle with nitrogen is provided on the surface of the crossbar, and a side plate is provided at the other end of the crossbar. The clamping component includes a rotating shaft symmetrically arranged on the left side of the support plate and rotatably connected to it. The surface of the rotating shaft is provided with a left clamping plate and a right clamping plate for clamping the syringe bottle. The bottom of the left clamping plate and the right clamping plate are fixedly connected with a bending plate. The surface of the bending plate is provided with a notch adapted to the diameter of the syringe bottle. The other end of the rotating shaft is rotatably connected to the inside of the side plate. The right side of the support plate is equipped with a drive component that drives the rotating shaft to rotate.

[0006] Preferably, bolts are fixedly connected to the top and one side of the left and right clamping plates, and the other end of the bolts passes through the clamping plates and extends into the interior of the rotating shaft.

[0007] Preferably, the upper surface of the crossbar is provided with a plurality of equally spaced fixing holes, the filling needle passes through the fixing holes and its bottom end extends to the notch, and the side of the crossbar is provided with a positioning bolt for fixing the filling needle.

[0008] Preferably, a positioning rod is threadedly connected to the other side of the side plate, and the other end of the positioning rod passes through the side plate and extends into the interior of the left end of the crossbar.

[0009] Preferably, the driving component includes a main gear whose rotating shaft extends into the interior of the support disk, and the interior of the support disk is provided with a first gear and a second gear that mesh with the main gear, the first gear and the second gear being meshed together.

[0010] Preferably, a motor is provided on the right side of the support plate, and a rotating rod is fixedly connected to the output end of the motor. The other end of the rotating rod is fixedly connected to the center of the first gear.

[0011] This utility model has the following beneficial effects: This invention relates to a nitrogen filling device for syringe bottles. By setting up symmetrical clamping components (left clamping plate and right clamping plate) controlled by a driving component, it can stably clamp multiple syringe bottles at the same time. With the help of multiple filling needles set on the crossbar, it can realize the simultaneous nitrogen filling of a row of syringe bottles. This completely changes the traditional intermittent operation mode of "one bottle, one filling", and changes the nitrogen filling process from serial to parallel, which greatly shortens the operation time. It is particularly suitable for small and medium batch production, and the production efficiency is significantly improved. This device for filling syringes with nitrogen uses a motor to drive a gear set (main gear, gear one, gear two), which can synchronously control the opening and closing of all clamping parts. This simplifies the operation process, reduces the labor intensity of workers, and ensures that the syringe can be quickly and accurately positioned directly below the filling needle when clamped. This guarantees the accuracy and consistency of the nitrogen filling process and helps improve product quality. This nitrogen filling device for syringe bottles features several equidistant fixing holes on a crossbar, which, combined with positioning bolts, allow the position of the filling needles to be flexibly adjusted according to the size and spacing of the syringe bottles. This enhances the device's adaptability to products of different specifications. The left and right clamping plates are securely connected to the rotating shaft with bolts, ensuring a stable and reliable structure. The support structure formed by the bent plate and notch at the end of the clamping component works in conjunction with the clamping plates to ensure the stability of the syringe bottles during the nitrogen filling process, preventing production interruptions or product damage caused by bottle tipping or displacement. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the support plate structure of this utility model; Figure 3 This is a schematic diagram of the left and right clamping plates of this utility model; Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0013] The components are as follows: 1. Base; 2. Support plate; 3. Crossbar; 4. Filling needle; 5. Side plate; 6. Rotating shaft; 7. Left clamping plate; 8. Right clamping plate; 9. Bending plate; 10. Notch; 11. Bolt; 12. Fixing hole; 13. Positioning bolt; 14. Positioning rod; 15. Main gear; 16. Gear one; 17. Gear two; 18. Motor; 19. Rotating rod. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1 to 4 This utility model provides a nitrogen filling device for needle bottles; it includes a support member, the support member includes a base 1, a support plate 2 is fixedly connected to the top of the base 1, a crossbar 3 is provided on the top left side of the support plate 2, a filling needle 4 for filling the needle bottle with nitrogen is provided on the surface of the crossbar 3, and a side plate 5 is provided at the other end of the crossbar 3. The clamping component includes a rotating shaft 6 symmetrically arranged on the left side of the support plate 2. The surface of the rotating shaft 6 is provided with a left clamping plate 7 and a right clamping plate 8 for clamping the syringe bottle. A bending plate 9 is fixedly connected to the bottom of the left clamping plate 7 and the right clamping plate 8. The surface of the bending plate 9 is provided with a notch 10 that matches the diameter of the syringe bottle. The other end of the rotating shaft 6 is rotatably connected to the inside of the side plate 5. A driving component for driving the rotating shaft 6 to rotate is provided on the right side of the support plate 2.

[0016] Bolts 11 are fixedly connected to the top and one side of the left clamping plate 7 and the right clamping plate 8. The other end of the bolt 11 passes through the clamping plate and extends into the interior of the rotating shaft 6. Several equally spaced fixing holes 12 are opened on the upper surface of the crossbar 3. The filling needle 4 passes through the fixing holes 12 and its bottom end extends to the notch 10. The side of the crossbar 3 is provided with a positioning bolt 13 for fixing the filling needle 4. By rotating the positioning bolt 13, the filling needle 4 can be disassembled for easy subsequent maintenance.

[0017] like Figure 1As shown, a flexible tube (not labeled) is fitted on the top of the filling needle 4. The other end of the flexible tube can be connected to an external nitrogen tank to facilitate filling the inside of the syringe bottle with gas.

[0018] The other side of the side plate 5 is threaded with a positioning rod 14. The other end of the positioning rod 14 passes through the side plate 5 and extends to the interior of the left end of the crossbar 3. The driving component includes a main gear 15 extending from the rotating shaft 6 into the interior of the support plate 2. The interior of the support plate 2 is provided with a gear 16 and a gear 2 17 that mesh with the main gear 15. The gear 16 and the gear 2 17 mesh with each other.

[0019] A motor 18 is provided on the right side of the support plate 2. The output end of the motor 18 is fixedly connected to a rotating rod 19, and the other end of the rotating rod 19 is fixedly connected to the center of the gear 16.

[0020] When the motor 18 is started and rotates in the forward direction, it can drive the rotating rod 19 to rotate. At this time, it can drive the gear 16 and gear 17 to rotate. Since the main gear 15 is meshed with the gear 16 and gear 17, it synchronously drives the rotating shaft 6 to rotate. At this time, the left clamping plate 7 and the right clamping plate 8 on its surface move closer to each other and use the notch 10 to clamp the syringe bottle, thereby filling it with nitrogen. When the motor 18 rotates in the reverse direction, the left clamping plate 7 and the right clamping plate 8 separate from each other.

[0021] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0022] In this invention, the working steps of the device are as follows: When in use, loosen the positioning bolt 13 on the side of the crossbar 3, move the filling needle 4 in the fixing hole 12 of the crossbar 3 so that the spacing is consistent with the spacing of the syringe bottles, and then tighten the positioning bolt 13 to fix it. Start the motor 18 to rotate in the reverse direction, driving the left clamp 7 and right clamp 8 to separate from each other, so that the clamping parts are in the open state. Place a row of syringes between the bent plates 9 at the bottom of the left and right clamps. Then, start the motor 18 again to rotate in the forward direction, thereby clamping the syringes. Then, through the external nitrogen tank connected by the hose, the syringes are filled with gas through the filling needle 4.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nitrogen filling device for a syringe, characterized by: include, The support includes a base (1), a support plate (2) is fixedly connected to the top of the base (1), a crossbar (3) is provided on the top left side of the support plate (2), a filling needle (4) for filling the syringe bottle with nitrogen is provided on the surface of the crossbar (3), and a side plate (5) is provided at the other end of the crossbar (3). The clamping component includes a rotating shaft (6) symmetrically arranged on the left side of the support plate (2) and rotatably connected to it. The surface of the rotating shaft (6) is provided with a left clamping plate (7) and a right clamping plate (8) for clamping the syringe bottle. The bottom of the left clamping plate (7) and the right clamping plate (8) are fixedly connected with a bending plate (9). The surface of the bending plate (9) is provided with a notch (10) that matches the diameter of the syringe bottle. The other end of the rotating shaft (6) is rotatably connected to the inside of the side plate (5). The right side of the support plate (2) is provided with a drive component for rotating the drive shaft (6).

2. The nitrogen gas filling device for a syringe according to claim 1, characterized by: Bolts (11) are fixedly connected to the top and one side of the left clamp (7) and right clamp (8), and the other end of the bolts (11) passes through the clamp and extends into the interior of the shaft (6).

3. A nitrogen filling device for a syringe according to claim 2, characterized in that: The upper surface of the crossbar (3) is provided with a number of equally spaced fixing holes (12), the filling needle (4) passes through the fixing holes (12) and its bottom end extends to the notch (10), and the side of the crossbar (3) is provided with a positioning bolt (13) for fixing the filling needle (4).

4. The nitrogen gas filling device for a syringe according to claim 3, characterized by: The other side of the side plate (5) is threadedly connected to a positioning rod (14), the other end of which passes through the side plate (5) and extends to the interior of the left end of the crossbar (3).

5. The nitrogen gas filling device for a syringe according to claim 4, characterized by: The drive unit includes a main gear (15) extending from a rotating shaft (6) into the interior of a support disk (2). The interior of the support disk (2) is provided with a gear one (16) and a gear two (17) that mesh with the main gear (15). The gear one (16) and the gear two (17) are meshed together.

6. A nitrogen filling device for a syringe according to claim 5, characterized in that: A motor (18) is provided on the right side of the support plate (2). The output end of the motor (18) is fixedly connected to a rotating rod (19). The other end of the rotating rod (19) is fixedly connected to the center of the gear (16).

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