Quantitative filling device for pranoprofen eye drops
By designing quantitative and auxiliary components, the problems of inconsistent filling volume and contamination of eye drops were solved, achieving accurate quantitative filling and clean filling of eye drops.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG HENGXIN PHARMA
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-01
AI Technical Summary
Existing eye drop quantitative filling devices are prone to inconsistent filling volumes and eye drop contamination during filling.
The design employs a quantitative component, including a top baffle, connecting rod, and bottom baffle, combined with a hydraulic rod to control quantitative filling, and uses auxiliary components to protect the filling head and prevent contamination.
It enables quantitative filling of eye drops, avoiding filling volume deviation and contamination, and improving filling accuracy and cleanliness.
Smart Images

Figure CN224184568U_ABST
Abstract
Description
A quantitative filling device for praprofen eye drops Technical Field
[0001] This utility model relates to the field of eye drop filling technology, specifically a quantitative filling device for pranoprofen eye drops. Background Technology
[0002] Eye drops are one of the most commonly used drug formulations for ophthalmic diseases. For many eye diseases, eye drops have a direct and quick therapeutic effect. With changes in people's lifestyles and working conditions, eye fatigue often occurs, and therefore the demand for eye drops is increasing. Pranoprofen eye drops are a common type of eye drops, which have good anti-inflammatory and therapeutic effects on the eyes. In the production process, the manufactured eye drops need to be filled into eye drop bottles.
[0003] For example, utility model application number 202222755321.5 discloses an eye drop filling device. The beneficial effects of this utility model are: by setting up a clamping device and a shooting device, the device can detect and remove eye drop bottles with damaged seals on the conveyor belt through the cooperation of the clamping device and the shooting device, so as to avoid the eye drop bottles with damaged seals from being mixed with those with intact seals, thus affecting the overall sealing quality of the eye drop bottles; however, existing eye drop quantitative filling devices are prone to filling different amounts of eye drop bottles during filling, resulting in deviations in filling amount, and unfilled eye drops are prone to contact with the outside environment during filling, leading to contamination.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a quantitative filling device for pranoprofen eye drops. Summary of the Invention
[0005] The purpose of this invention is to provide a quantitative filling device for pranoprofen eye drops to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a quantitative filling device for pranoprofen eye drops, comprising a filling tube and a quantitative component. The lower end of the filling tube is connected to a quantitative tube, and an observation window is provided on the front side of the quantitative tube. The quantitative component for quantitative filling is disposed inside the quantitative tube, and the quantitative component includes an inner frame, a protective tube, a hydraulic rod, a top partition, a connecting rod, and a bottom partition. A protective tube is installed in the middle of the lower end of the inner frame, and a hydraulic rod is disposed inside the protective tube. The output end of the hydraulic rod is connected to the top partition, and a connecting rod is connected in the middle of the lower end of the top partition. The lower end of the connecting rod is connected to the bottom partition.
[0007] Furthermore, the top partition, connecting rod, and bottom partition are fixedly connected, and the vertical cross-section of the top partition, connecting rod, and bottom partition is I-shaped.
[0008] Furthermore, the lower end of the metering tube is connected to a filling head, and the metering tube and the filling head are fixedly connected.
[0009] Furthermore, a liquid storage box is connected to the top of the filling tube, and a frame is installed on the outside of the liquid storage box.
[0010] Furthermore, a connecting plate is connected to the rear side of the filling head, and an auxiliary component for air isolation is provided in the middle of the connecting plate.
[0011] Furthermore, the auxiliary component includes a rotating rod and an auxiliary rod, with the lower end of the rotating rod connected to the auxiliary rod.
[0012] Furthermore, the auxiliary component also includes an auxiliary plate and a cover plate, with the auxiliary plate connected to the end of the auxiliary rod, and the cover plate mounted on the upper side of the auxiliary plate via a torsion spring.
[0013] Furthermore, two sets of auxiliary plates and cover plates are symmetrically arranged about the central axis of the auxiliary rod, and the size of the auxiliary plate is larger than the diameter of the bottom of the filling head.
[0014] This utility model provides a quantitative filling device for pranoprofen eye drops, which has the following beneficial effects:
[0015] 1. In this utility model, when the top partition, connecting rod, and bottom partition are all in the metering tube, the inner sides of the top and bottom partitions play a role in metering the eye drops. When the bottom partition moves further down beyond the bottom of the metering tube, the metered amount of eye drops is filled through the filling head. At this time, the top partition in the metering tube separates the eye drops in the storage box to prevent contamination. The hydraulic rod extends and retracts to control the lifting and moving of the top partition, connecting rod, and bottom partition. The corrugated rubber protective tube contracts or expands accordingly with the extension and retraction of the hydraulic rod to separate the hydraulic rod and the eye drops.
[0016] 2. This utility model uses a connecting plate for the installation of auxiliary components. The rotating rod is driven by a motor to control the rotation of the auxiliary rod and the auxiliary plate, so that the two sets of auxiliary rods and auxiliary plates alternately to protect the filling head and prevent the inside from getting dirty. The auxiliary plate covers the end of the filling head to prevent excessive external air from contacting the inside of the filling head after filling. The torsion spring between the cover plate and the auxiliary plate pushes the cover plate to rotate when it rotates close to the filling head, and returns it to the auxiliary plate when there is no external force. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the overall structure of a quantitative filling device for pranoprofen eye drops according to this utility model.
[0018] Figure 2 is a schematic diagram of the quantitative component structure of a quantitative filling device for pranoprofen eye drops according to this utility model;
[0019] Figure 3 is a schematic diagram of the auxiliary components of a quantitative filling device for pranoprofen eye drops according to this utility model.
[0020] In the diagram: 1. Filling tube; 2. Metering tube; 3. Observation window; 4. Metering component; 401. Inner rack; 402. Protective tube; 403. Hydraulic rod; 404. Top partition; 405. Connecting rod; 406. Bottom partition; 5. Filling head; 6. Liquid storage box; 7. Frame; 8. Connecting plate; 9. Auxiliary components; 901. Rotating rod; 902. Auxiliary rod; 903. Auxiliary plate; 904. Cover plate. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] As shown in Figures 1 and 2, a quantitative filling device for pranoprofen eye drops includes a filling tube 1 and a quantitative component 4. A quantitative tube 2 is connected to the lower end of the filling tube 1, and an observation window 3 is provided on the front side of the quantitative tube 2. A filling head 5 is connected to the lower end of the quantitative tube 2, and the quantitative tube 2 and the filling head 5 are fixedly connected. A liquid storage box 6 is connected to the top of the filling tube 1, and a frame 7 is installed on the outside of the liquid storage box 6. The quantitative component 4 for quantitative filling is located inside the quantitative tube 2, and the quantitative component 4 includes an inner frame 401, a protective tube 402, a hydraulic rod 403, a top partition 404, a connecting rod 405, and a bottom partition 406. The protective tube 402 is installed in the middle of the lower end of the inner frame 401. The corrugated rubber protective tube 402 contracts or expands accordingly with the extension and retraction of the hydraulic rod 403 to separate the hydraulic rod 403 and the eye drops. The hydraulic rod 403 is located inside the protective tube 402. The hydraulic rod 403 controls the lifting and lowering movement of the top partition 404, connecting rod 405, and bottom partition 406. The output end of the hydraulic rod 403 is connected to the top partition 404, and the middle of the lower end of the top partition 404 is connected to the connecting rod 405. The lower end of the connecting rod 405 is connected to the bottom partition 406. The top partition 404, connecting rod 405, and bottom partition 406 are fixedly connected, and the vertical movement of the top partition 404, connecting rod 405, and bottom partition 406 is... With a cross-section of I-shape, when the top partition 404, connecting rod 405, and bottom partition 406 are all in the metering tube 2, the inner sides of the top partition 404 and bottom partition 406 play a role in metering the eye drops. When the bottom partition 406 moves further down beyond the bottom of the metering tube 2, the metered amount of eye drops is filled through the filling head 5. At this time, the top partition 404 in the metering tube 2 plays a role in separating the eye drops in the storage box 6 to prevent the eye drops from being contaminated.
[0023] As shown in Figure 3, a connecting plate 8 is connected to the rear side of the filling head 5. The connecting plate 8 is used for the installation of the auxiliary component 9, and the middle of the connecting plate 8 is provided with the auxiliary component 9 for air isolation. The auxiliary component 9 includes a rotating rod 901 and an auxiliary rod 902, and the lower end of the rotating rod 901 is connected to the auxiliary rod 902. The rotating rod 901 is driven by a motor to control the rotation of the auxiliary rod 902 and the auxiliary plate 903, so that the two sets of auxiliary rods 902 and auxiliary plates 903 alternately protect the filling head 5 and prevent it from getting dirty. The auxiliary component 9 also includes an auxiliary plate 903 and a cover plate 904. An auxiliary plate 903 is connected to the end of the auxiliary rod 902. The auxiliary plate 903 covers the end of the filling head 5 to prevent excessive external air from contacting the inside of the filling head 5 after filling. Two sets of auxiliary plates 903 and cover plates 904 are symmetrically arranged about the central axis of the auxiliary rod 902. The size of the auxiliary plate 903 is larger than the diameter of the bottom of the filling head 5. The cover plate 904 is installed on the side of the upper end of the auxiliary plate 903 through a torsion spring. The torsion spring between the cover plate 904 and the auxiliary plate 903 causes the cover plate 904 to be pushed to rotate when it rotates close to the filling head 5, and to return to the auxiliary plate 903 when there is no external force.
[0024] In summary, this pranoprofen eye drop quantitative filling device, according to the structure shown in Figures 1-3, during filling, the hydraulic rod 403 retracts and moves upward, causing the top partition 404, connecting rod 405, and bottom partition 406 to move upward, allowing the eye drops to enter the quantitative tube 2. Then, the hydraulic rod 403 moves downward at a constant speed, causing the top partition 404 to fall back into the quantitative tube 2. When the hydraulic rod 403 is driven, the corrugated rubber protective tube 402 retracts or expands accordingly with the extension and retraction of the hydraulic rod 403, separating the hydraulic rod 403 and the eye drops. When the top partition 404, connecting rod 405, and bottom partition 406 are all in the quantitative tube 2, the inner sides of the top partition 404 and bottom partition 406 play a role in quantitatively dispensing the eye drops. As the bottom partition 406 moves further down beyond the bottom of the metering tube 2, a metered amount of eye drops is filled through the filling head 5. At this time, the top partition 404 separates the eye drops in the storage box 6 within the metering tube 2 to prevent contamination. After a single filling, the rotating rod 901 is driven by a motor to control the rotation of the auxiliary rod 902 and the auxiliary plate 903. When the auxiliary plate 903 and the cover plate 904 approach the end of the filling head 5, the cover plate 904 is pushed to rotate and separate from the auxiliary plate 903. The auxiliary plate 903 covers the end of the filling head 5 to prevent excessive external air from contacting the inside of the filling head 5 after filling. When filling is required, the auxiliary plate 903 rotates away, and the cover plate 904 returns to the auxiliary plate 903 under the action of a torsion spring.
[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A device for the dosing filling of eye drops of pranoprofen comprising a filling tube (1) and a dosing assembly (4), characterized in that, The lower end of the filling tube (1) is connected to a metering tube (2), and an observation window (3) is provided on the front side of the metering tube (2). The metering component (4) for metering is located inside the metering tube (2), and the metering component (4) includes an inner frame (401), a protective tube (402), a hydraulic rod (403), a top partition (404), a connecting rod (405), and a bottom partition (406). The protective tube (402) is installed in the middle of the lower end of the inner frame (401), and a hydraulic rod (403) is provided inside the protective tube (402). The output end of the hydraulic rod (403) is connected to the top partition (404), and the middle of the lower end of the top partition (404) is connected to the connecting rod (405). The lower end of the connecting rod (405) is connected to the bottom partition (406).
2. The pranoprofen eye drop liquid quantitative filling device according to claim 1, characterized by, The top partition (404), connecting rod (405) and bottom partition (406) are fixedly connected, and the vertical cross-section of the top partition (404), connecting rod (405) and bottom partition (406) is I-shaped.
3. The pranoprofen eye drop quantitative filling device according to claim 1, characterized in that, The lower end of the metering tube (2) is connected to the filling head (5), and the metering tube (2) and the filling head (5) are fixedly connected.
4. The pranoprofen eye drop liquid quantitative filling device according to claim 1, wherein The top of the filling tube (1) is connected to a liquid storage box (6), and a frame (7) is installed on the outside of the liquid storage box (6).
5. A quantitative filling device for pranoprofen eye drops according to claim 3, characterized in that, The filling head (5) is connected to a connecting plate (8) on its rear side, and an auxiliary component (9) for air isolation is provided in the middle of the connecting plate (8).
6. The pranoprofen eye drop quantitative filling device according to claim 5, characterized in that, The auxiliary component (9) includes a rotating rod (901) and an auxiliary rod (902), and the lower end of the rotating rod (901) is connected to the auxiliary rod (902).
7. The pranoprofen eye drop liquid quantitative filling device according to claim 6, characterized by, The auxiliary component (9) also includes an auxiliary plate (903) and a cover plate (904). The end of the auxiliary rod (902) is connected to the auxiliary plate (903), and the cover plate (904) is installed on the side of the upper end of the auxiliary plate (903) by a torsion spring.
8. A quantitative filling device for pranoprofen eye drops according to claim 7, characterized in that, The auxiliary plate (903) and cover plate (904) are arranged symmetrically about the central axis of the auxiliary rod (902) in two sets, and the size of the auxiliary plate (903) is larger than the diameter of the bottom of the filling head (5).
Citation Information
Patent Citations
An eye drop filling device
CN218807072U