Manual lamp inspection auxiliary tool for pre-filled syringe liquid dosage form product

Abstract

The utility model relates to the technical field of quality detection in the pharmaceutical industry, discloses a manual lamp inspection auxiliary tool for pre-filled syringe liquid dosage form products, and aims to improve the lamp inspection efficiency and reduce the labor cost. The tool comprises a clamping body composed of two oppositely arranged clamping plates, and clamping force is applied between the clamping plates through a torsional spring. The clamping plate is provided with a clamping part, and the clamping part is provided with a flexible material or a clamping head, so that a plurality of pre-filled syringes can be clamped at one time. And a detachable combined structure is adopted between the clamping part and the clamping plate. And the front end of the clamping part is provided with the LED lighting device with adjustable brightness, so that the detection precision is improved. The inner sides of the clamping plates are coated with anti-static coatings, and static interference is prevented. And the clamping block is provided with a buffer pad and a stepped groove to adapt to different bottleneck sizes and protect bottle bodies. And due to the arrangement of the opening part and the grasping part, the product can be conveniently clamped and turned over. The device is simple in structure and convenient to operate, the efficiency of manual lamp inspection is remarkably improved, and the device is suitable for large-scale production and quality inspection of pre-filled syringes.

Description

Technical Field

[0001] This utility model relates to the field of quality inspection technology in the pharmaceutical industry, specifically to an auxiliary tool for manual light inspection of pre-filled syringe liquid dosage forms, which is used to improve the efficiency of manual light inspection and reduce production costs. Background Technology

[0002] Pre-filled syringes for liquid dosage forms are widely used in the field of injectable drug packaging due to their sterility and convenience. To ensure that product quality meets standards, a rigorous inspection process is required to examine the product's physical appearance (such as cracks and foreign matter) and contents (such as liquid clarity and stopper sealing).

[0003] Currently, the industry mainly uses a combination of fully automated light inspection machines and manual light inspection. Although fully automated light inspection machines have high detection efficiency, their equipment cost is high, and their adaptability to special-shaped products or abnormal samples that require re-inspection is limited, still requiring manual verification.

[0004] During manual light inspection, operators must pick up each product one by one and visually observe it under different background light sources. A single inspection typically takes more than 90 seconds, and the product needs to be frequently flipped and shaken to observe its internal condition. Since only 1-3 products can be processed at a time, the inspection efficiency is low. This is especially true when there is a large demand for batch production or re-inspection, requiring a significant investment of manpower and time, which seriously affects production efficiency.

[0005] In addition, pre-filled syringes are usually packaged in specially designed nest boxes, such as Figure 8 As shown, 10×10 products are fixed inside the nest box by a nest plate. In the prior art, although the operator can neatly eject a row (10 products) at a time using an ejector device, each product still needs to be separated and inspected individually, failing to effectively utilize the batch fixing characteristics of the nest box. During this process, frequent handling can easily cause products to slip or collide and be damaged, and there is a lack of auxiliary tools for simultaneously clamping and flipping multiple products, further limiting the improvement of manual light inspection efficiency.

[0006] Therefore, there is an urgent need to develop a light inspection auxiliary tool that is compatible with the packaging structure of pre-filled syringes and can simultaneously clamp and flip multiple products to solve the problems of low efficiency and high cost of manual operation, while also making up for the shortcomings of fully automated equipment in complex scenarios. Utility Model Content

[0007] This invention provides a simple and practical tool that uses a special clamp to pick up 10 products at a time for light inspection. Under the premise of meeting the relevant light inspection requirements, it significantly improves the work efficiency of a single light inspector, reduces labor costs, and shortens the production time of manual light inspection.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] This utility model discloses a manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products, comprising: a clamping body, the clamping body including two clamping plates arranged facing each other, the two clamping plates being hinged to each other, and a torsion spring being provided between the two clamping plates to apply a clamping force to the two clamping plates in the facing direction; the clamping plates are provided with clamping parts, and the clamping parts are provided with flexible material and / or clamping heads along their length direction for clamping multiple pre-filled syringe liquid dosage form products at one time.

[0010] In addition to the above-mentioned technical features, this utility model has also made optimizations and improvements in the following aspects:

[0011] In a preferred embodiment of this invention, the flexible material is an elastic strip, which is adhered to the clamping opening of the clamping part.

[0012] As a preferred technical solution of this utility model, the clamping part and the clamping body adopt a detachable combination structure. A slot and a head are provided between the clamping part and the clamping plate. The clamping part is detachably connected together by combining the head and the slot.

[0013] As a preferred technical solution of this utility model, the elastic rubber strip has a plurality of first clamping grooves spaced apart along its length direction. The first clamping grooves are semi-circular and are respectively disposed on the corresponding clamping parts of the two clamping plates, and are arranged facing each other to form a circular clamping structure.

[0014] As a preferred embodiment of this utility model, the two opposing clamping plates are configured as an arc structure, wherein one end of the arc surface is hinged together, and a torsion spring applies a clamping force to the two clamping plates in the opposing direction; the clamping part is provided at the end opposite to the arc surface, and multiple clamping blocks are provided in the clamping part along the length direction, and the clamping blocks are arranged side by side along the length direction of the clamping part; both clamping plates are provided with clamping blocks in their clamping parts, and they are arranged in opposite directions.

[0015] As a preferred embodiment of this utility model, the clamping part is provided with a mounting groove and a positioning hole for mounting the clamping block. The mounting groove and the positioning hole are distributed along the length direction of the clamping part and are used to mount and position the clamping block. The size of the mounting groove and the positioning hole matches the clamping block to ensure that the clamping block is securely mounted.

[0016] As a preferred technical solution of this utility model, a positioning post and an adjusting bolt are provided on one side of the clamping block. The positioning post is adapted to the positioning hole provided in the clamping part to install and position the clamping block. The adjusting bolt is connected to the clamping part through a threaded structure. Rotating the adjusting bolt can realize the fine adjustment of the lateral and axial positions of the clamping block.

[0017] As a preferred technical solution of this utility model, the front end of the clamping part is provided with an adjustable LED lighting device to adjust the light environment for easy lamp inspection operation; the inner side of the clamping plate is coated with an anti-static coating to prevent electrostatic interference during lamp inspection and improve the detection accuracy.

[0018] As a preferred embodiment of this invention, a second clamping groove is provided on the other side of the clamping block, and a buffer pad is provided on the inner wall of the second clamping groove to buffer the impact force during the clamping process. The buffer pad is made of silicone or rubber, which can effectively absorb the impact force during clamping and reduce damage to the syringe bottle.

[0019] As a preferred technical solution of this utility model, a stepped groove is provided on the other side of the clamping block. The stepped groove includes an inner clamping groove and an outer clamping groove, which are distributed on the inner and outer sides of the stepped groove. The inner clamping groove and the outer clamping groove have different apertures and are suitable for pre-filled syringe liquid dosage form products with different bottlenecks.

[0020] As a preferred technical solution of this utility model, the clamping body is provided with a supporting part on both sides, and the supporting part is correspondingly provided on two opposing clamping plates for supporting the clamping part and clamping the pre-filled syringe liquid dosage form product.

[0021] As a preferred technical solution of this utility model, the clamping head is configured as multiple groups, and the number of clamping slots provided on each group of clamping heads is different, which is used to match different numbers of pre-filled syringe liquid dosage form products.

[0022] As a preferred embodiment of this utility model, the clamping plate is provided with gripping parts on both sides for flipping the clamped product during the light inspection process for observation.

[0023] As a preferred technical solution of this utility model, the gripping part includes upper handles symmetrically arranged on the upper part of both sides of the clamping plate and lower handles symmetrically arranged on the lower part of the clamping plate; wherein, the upper handles are distributed on one of the two clamping plates and the lower handles are distributed on the other clamping plate, which facilitates gripping during observation.

[0024] Based on the above description of the technical content, the technical effects of this utility model's manual light inspection auxiliary tool for pre-filled syringe liquid dosage forms are mainly reflected in the following aspects:

[0025] This utility model provides an auxiliary tool for manual light inspection of pre-filled syringe liquid dosage forms, and its technical effects are mainly reflected in the following aspects:

[0026] 1. Significantly improves light inspection efficiency and operational stability

[0027] The design of two opposing clamping plates and torsion springs enables stable clamping of pre-filled syringe liquid dosage forms. The clamping part can be equipped with flexible materials and / or clamping heads to clamp multiple products at once, improving the efficiency of light inspection.

[0028] 2. Enhance the adaptability and versatility of tools

[0029] The clamping part and the clamping plate body are detachably connected via a slot / clamp, supporting quick replacement to adapt to different product specifications and meet diverse production needs.

[0030] The semi-circular clamping groove on the elastic strip forms an annular clamping groove structure, which evenly distributes the clamping pressure and avoids bottle damage caused by local stress concentration; the stepped groove design combined with the fine adjustment function of the adjusting bolt can adapt to a variety of bottle neck sizes, significantly expanding the applicability of the tool.

[0031] 3. Effectively protects product integrity

[0032] The combination of flexible elastic strips and silicone / rubber cushioning pads effectively absorbs the impact during clamping, reducing the risk of bottle scratches, deformation, or breakage, and ensuring the integrity of the product's appearance and internal structure.

[0033] 4. Improve detection accuracy and ease of operation

[0034] The front end of the clamping section integrates an adjustable LED lighting device to adapt to different lighting environments, ensuring that the product appearance and contents are clearly visible and improving detection accuracy.

[0035] The inner side of the clamp is coated with an anti-static coating to eliminate static interference and prevent dust from affecting the observation results; the design of the opening and gripping parts (upper / lower handles) simplifies the clamping and flipping operation, and supports quick switching between black and white backgrounds to improve detection efficiency.

[0036] 5. Modular design facilitates maintenance and upgrades.

[0037] The clamping section features a detachable structure, facilitating cleaning or replacement of worn parts and extending tool life. Furthermore, the design of the mounting slots and positioning holes ensures quick and secure installation of the clamping blocks, reducing maintenance costs and operational complexity.

[0038] In summary, this application provides a simple and practical light inspection auxiliary tool that significantly improves the efficiency of manual light inspection of pre-filled syringe liquid dosage forms, reduces labor costs, and shortens the production cycle. Furthermore, the tool has a simple structure, is lightweight and easy to use, can adapt to products of different specifications, reduces product damage, improves light inspection quality, and has broad application prospects. Attached Figure Description

[0039] Figure 1This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0040] Figure 2 This is a structural schematic diagram of the clamping plate body for removing the clamping part in Embodiment 1 of this utility model;

[0041] Figure 3 This is a schematic diagram of the structure of the clamping part with different clamping groove distribution in Embodiment 1 of this utility model;

[0042] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0043] Figure 5 This is a schematic diagram of the structure after one of the clamping parts is removed in Embodiment 2 of this utility model;

[0044] Figure 6 This is a schematic diagram of the clamping block in Embodiment 2 of this utility model;

[0045] Figure 7 This is a schematic diagram of the clamping block in Embodiment 3 of this utility model;

[0046] Figure 8 This is a schematic diagram of the pre-filled syringe nest structure in the prior art.

[0047] In the picture:

[0048] 1. Clamping plate; 2. Pressing part; 3. Clamping part; 4. Elastic rubber strip; 401. First clamping groove; 5. Card slot; 6. Card head; 7. Spreading part; 8. Grip part; 801. Upper handle; 802. Lower handle; 9. Clamping block; 901. Second clamping groove; 902. Stepped groove; 912. Inner clamping groove; 922. Outer clamping groove; 92. Positioning post; 903. Adjusting bolt. Detailed Implementation

[0049] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] I. Explanation of descriptive terms used in this utility model

[0051] The embodiments provided in conjunction with the technical solutions of this utility model are intended to make the present utility model more thorough and complete, and to fully express the scope of the present utility model to those skilled in the art. It should be noted that unless otherwise specifically stated by the present utility model, the relative arrangement of components described in these embodiments should be interpreted as merely exemplary, and not as a limitation on the technical solutions of the present utility model.

[0052] In this utility model, the use of directional terms such as "upper," "lower," "left," "right," "bottom," and "top" is defined relative to the directions shown in the accompanying drawings and is used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other directional terms should not be construed as restrictive terms.

[0053] In this utility model, the terms "a," "an," "a kind," "the," and similar words used do not indicate quantity limitation and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," "third," etc., used in this utility model are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0054] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not exist between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0055] Furthermore, this utility model does not discuss in detail the technologies and equipment known to those skilled in the art, but where appropriate, such technologies and equipment should be considered part of the specification.

[0056] II. The core technical problem to be solved by the technical solution of this application

[0057] Existing technologies have significant problems in the light inspection process of pre-filled syringes for liquid dosage forms. While fully automated light inspection machines can improve inspection efficiency, they are expensive and have limited adaptability to products with special shapes or abnormal samples, still requiring manual verification. During manual light inspection, operators must handle each syringe individually and observe them visually for extended periods under different light sources, resulting in low inspection efficiency. Furthermore, pre-filled syringes are typically packaged in nested boxes. Although the ejector device can eject a row of products at a time, each syringe still needs to be separated for inspection, failing to fully utilize the batch-fixing characteristics of the nested boxes. In addition, frequent handling of products can easily cause slippage or collision damage, and the lack of auxiliary tools for simultaneously clamping and flipping multiple products limits the improvement of manual light inspection efficiency.

[0058] III. Based on the above problems, this utility model provides a technical solution to solve the above problems. The technical solution, working principle and technical effect of this utility model are described in detail below with reference to specific embodiments.

[0059] Example 1

[0060] Please see Figure 1-3 As shown in this embodiment, a manual light inspection aid tool for pre-filled syringe liquid dosage form products is provided. This tool is designed to significantly improve the efficiency of manual light inspection while ensuring the safety and integrity of the product during the light inspection process.

[0061] The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products in this embodiment mainly consists of a clamping body, a pressing part 2, a clamping part 3, and an elastic rubber strip 4.

[0062] The clamping body consists of two opposing clamping plates 1, which are hinged together. A torsion spring is provided between the two clamping plates 1, and the torsion spring applies a clamping force to the two clamping plates 1 in the opposite direction.

[0063] The clamping part 3 is located at one end of the clamping plate 1 and is used to clamp the pre-filled syringe liquid dosage form product. The clamping part 3 and the clamping body adopt a detachable combination structure.

[0064] Specifically, a slot 5 and a locking head 6 are provided between the clamping part 3 and the clamping plate 1. The clamping part 3 is detachably connected together by combining the locking head 6 and the slot 5. This design facilitates the replacement of clamping parts 3 of different specifications according to actual needs.

[0065] As a preferred embodiment of this invention, the clamping part 3 is provided with an elastic adhesive strip 4 along its length, and the elastic adhesive strip 4 is adhered to the clamping opening of the clamping part 3. The elastic adhesive strip 4 has good flexibility and elasticity, and can closely fit the bottle body of the pre-filled syringe to ensure the stability of the clamping.

[0066] Furthermore, the elastic strip 4 has multiple first clamping grooves 401 spaced apart along its length. The first clamping grooves 401 are semi-circular and are respectively disposed on the corresponding clamping parts 3 of the two clamping plates 1, and are arranged facing each other to form a circular clamping structure. This design can better fix the pre-filled syringe and prevent it from shaking during light inspection.

[0067] Example 2

[0068] like Figure 4-6 As shown, the difference between this embodiment and Embodiment 1 is that the two opposing clamping plates 1 are configured as arc structures, wherein one end of the arc surface of the two clamping plates 1 is hinged together, and a torsion spring applies a clamping force to the two arc-shaped clamping plates 1 in the opposing direction.

[0069] The clamping part is located on one end opposite to the arc-shaped surface, and multiple clamping blocks 9 are arranged along its length. The clamping blocks 9 are arranged side by side along the length of the clamping part, and the clamping parts of both clamping plates 1 are provided with clamping blocks 9 and are arranged facing each other.

[0070] As a preferred embodiment of this utility model, the clamping part is provided with a mounting groove and a positioning hole for mounting the clamping block 9. The mounting groove and the positioning hole are distributed along the length direction of the clamping part and are used to mount and position the clamping block 9. The dimensions of the mounting groove and the positioning hole match the clamping block 9 to ensure that the clamping block 9 is securely mounted.

[0071] In addition, a positioning post 92 and an adjusting bolt 903 are provided on one side of the clamping block 9. The positioning post 92 is adapted to the positioning hole provided in the clamping part to install and position the clamping block 9. The adjusting bolt 903 is connected to the clamping part through a threaded structure. Rotating the adjusting bolt 903 can realize the fine adjustment of the lateral and axial position of the clamping block 9, thereby adapting to pre-filled syringes of different specifications and sizes.

[0072] As a preferred embodiment of this invention, the clamping part 3 is equipped with an adjustable LED lighting device (not shown in the figure) at its front end to adjust the lighting environment for easy lamp inspection. The LED lighting device is equipped with adjustable brightness to adapt to the lamp inspection requirements under different lighting conditions.

[0073] To prevent electrostatic interference during lamp inspection, the inner side of clamp 1 is coated with an antistatic coating (not shown in the figure). The antistatic coating effectively prevents static electricity accumulation, improves inspection accuracy, and ensures the accuracy of lamp inspection results.

[0074] A second clamping groove 901 is provided on the other side of the clamping block 9, and a buffer pad is provided on the inner wall of the second clamping groove 901. The buffer pad is made of soft materials such as silicone or rubber, which can effectively absorb the impact force during clamping and reduce damage to the syringe bottle.

[0075] As a preferred technical solution of this utility model, the clamping body is provided with a supporting part 7 on both sides. The supporting part 7 is correspondingly provided on two opposing clamping plates 1 to support the clamping part 3, so as to facilitate clamping the pre-filled syringe liquid dosage form product.

[0076] The clamping plate 1 is also provided with gripping parts 8 on both sides, which are used to flip the gripped product during the light inspection process so that it can be observed under different backgrounds.

[0077] The gripping part 8 includes upper handles 801 symmetrically arranged on the upper part of both sides of the clamping plate 1 and lower handles 802 symmetrically arranged on the lower part of the clamping plate 1. The upper handles 801 are distributed on one of the two clamping plates 1, and the lower handles 802 are distributed on the other clamping plate 1, which facilitates the operator to grip and flip the clamping part during observation.

[0078] Example 3

[0079] like Figure 7As shown, the difference between Embodiment 1 and Embodiment 2 is that a stepped groove 902 is provided on the other side of the clamping block 9. The stepped groove 902 includes an inner clamping groove 912 and an outer clamping groove 922, which are distributed on the inner and outer sides of the stepped groove 902.

[0080] The inner clamping groove 912 and the outer clamping groove 922 have different apertures, making them suitable for pre-filled syringe liquid dosage forms with different bottlenecks. This design allows the light inspection auxiliary tool of this embodiment to be more widely applicable to products of different specifications.

[0081] Based on the above description, the method of using the manual light inspection auxiliary tool for the pre-filled syringe liquid dosage form product of this application is as follows:

[0082] 1. Tool Preparation

[0083] Check that components such as clamping plate 1, clamping block 9, and elastic rubber strip 4 are intact and undamaged, and ensure that the LED lighting device has sufficient power.

[0084] According to the specifications of the pre-filled syringe to be tested (e.g., 1mL, 3mL), select the appropriate elastic strip 4 or clamping part 3 (e.g., stepped groove: including inner clamping groove 912 and outer clamping groove 922) and install it in place.

[0085] 2. Product clamping

[0086] Arrange the pre-filled syringes to be inspected neatly in the tray, ensuring that the bottles are upright and the rubber stoppers are not loose.

[0087] Press the pressing part of the clamping body or hold the opening part 7 of the clamping body with both hands, gently open the clamping plate 1, and align the clamping part 3 with the product to be inspected.

[0088] Release the pressing part 2 or the spreading part 7, and the clamping plate 1 will automatically close under the action of the torsion spring, and the elastic rubber strip 4 or the clamping block 9 will firmly clamp the 10 products.

[0089] 3. Physical appearance inspection

[0090] Visually inspect the clamped product and check for any damage to the rubber stopper or needle cap, or any empty bottle.

[0091] Check the center of the rubber stopper for large areas of liquid filling, fibers, color spots, or other foreign objects, and check the bottle body for scratches or stains.

[0092] Flip the clamping tool 180° and observe whether there is any abnormal liquid filling on both sides of the rubber stopper.

[0093] 4. Filling volume and visible foreign matter detection

[0094] Gently flip the clamping tool so that the product is placed about 10cm under the canopy of the clarity tester.

[0095] Adjust the brightness of the LED lighting device to ensure that the light illuminates the product evenly.

[0096] Observe against a black background for 90 seconds to check if the product filling is abnormal (such as too low or too high) and if there are visible foreign objects such as glass fragments, fibrous material, or color spots in the contents.

[0097] Switch to a white background and repeat the above observation steps.

[0098] 5. Product flipping and re-inspection

[0099] Using the upper / lower handles 802 of the gripping part 8, the tool can be flipped with one hand to switch the viewing angle.

[0100] Products suspected of being substandard should be re-inspected to ensure accurate test results.

[0101] The functions and specific application scenarios of this application are as follows:

[0102] This application can grip up to 10 pre-filled syringes containing liquid dosage forms for manual visual inspection at a time, greatly improving inspection efficiency. The perfect combination of the gripping body and flexible material ensures a stable and safe gripping process.

[0103] During manual light inspection, operators can easily grip, flip, and place products using this tool. Especially when performing physical appearance inspections, filling quantity checks, and inspections for visible foreign objects, this tool significantly simplifies the operation process and improves inspection accuracy.

[0104] This design allows operators to perform light inspections against various backgrounds, including black and white. This multi-background observation method facilitates more comprehensive detection of product defects and ensures product quality. It is particularly suitable for inspecting fill weight and visible foreign objects under the canopy of a clarity meter. Operators simply need to gently place the tool holding the product under the canopy to perform high-precision inspections.

[0105] In summary, the manual light inspection auxiliary tool for pre-filled syringe liquid dosage forms of this utility model, through the adoption of optimized technical solutions such as the elastic rubber strip 4 clamping part 3, the detachable combination structure, the first clamping groove 401, the arc-shaped clamping plate 1 and clamping block 9, the LED lighting device and the anti-static coating, effectively improves the efficiency of manual light inspection, reduces labor costs, and ensures the accuracy of inspection. At the same time, the tool has a simple structure, is easy to use, and is suitable for manual light inspection of pre-filled syringe liquid dosage forms of different specifications and quantities.

[0106] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0107] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products, characterized in that, include: The clamping body includes two opposing clamping plates that are hinged together, and a torsion spring that applies a clamping force to the two clamping plates in the opposing direction is provided between the two clamping plates; the clamping plates are provided with clamping parts, and the clamping parts are provided with flexible material and / or clamping heads along their length direction for clamping multiple pre-filled syringe liquid dosage form products at one time.

2. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The flexible material is an elastic rubber strip, which is adhered to the clamping opening of the clamping part.

3. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The clamping part and the clamping body adopt a detachable combination structure. A slot and a head are provided between the clamping part and the clamping plate. The clamping part is detachably connected together by combining the head and the slot.

4. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 2, characterized in that, The elastic rubber strip has multiple first clamping grooves spaced apart along its length. The first clamping grooves are semi-circular and are respectively disposed on the corresponding clamping parts of the two clamping plates, and are arranged facing each other to form a circular clamping structure.

5. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The two clamping plates are configured as an arc structure, wherein one end of the arc surface is hinged together, and a torsion spring applies a clamping force to the two clamping plates in opposite directions. The clamping part is located at one end opposite to the arc-shaped surface. The clamping part is provided with a plurality of clamping blocks along its length direction. The clamping blocks are arranged side by side along the length direction of the clamping part. The clamping parts of the two clamping plates are both provided with clamping blocks and are arranged facing each other.

6. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 5, characterized in that, The clamping part is provided with a mounting groove and a positioning hole for mounting the clamping block. The mounting groove and the positioning hole are distributed along the length direction of the clamping part and are used to mount and position the clamping block. The size of the mounting groove and the positioning hole matches the clamping block to ensure that the clamping block is securely installed.

7. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 5, characterized in that, A positioning post and an adjusting bolt are provided on one side of the clamping block. The positioning post is adapted to the positioning hole provided in the clamping part to install and position the clamping block. The adjusting bolt is connected to the clamping part through a threaded structure. Rotating the adjusting bolt can achieve fine adjustment of the lateral and axial positions of the clamping block.

8. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The clamping part is equipped with an adjustable LED lighting device at its front end to adjust the lighting environment for easy lamp inspection operation; the inner side of the clamping plate is coated with an anti-static coating to prevent electrostatic interference during lamp inspection and improve detection accuracy.

9. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 5, characterized in that, A second clamping groove is provided on the other side of the clamping block, and a buffer pad is provided on the inner wall of the second clamping groove to buffer the impact force during the clamping process.

10. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 5, characterized in that, A stepped groove is provided on the other side of the clamping block. The stepped groove includes an inner clamping groove and an outer clamping groove, which are distributed on the inner and outer sides of the stepped groove. The inner clamping groove and the outer clamping groove have different apertures and are suitable for pre-filled syringe liquid dosage form products with different bottlenecks.

11. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The clamping body has a support portion on both sides, which is correspondingly set on two opposing clamping plates to support the clamping portion and clamp the pre-filled syringe liquid dosage form product.

12. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The clamping head is configured in multiple sets, and the number of clamping slots on the clamping head is different, which is used to match different numbers of pre-filled syringe liquid dosage form products.

13. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 1, characterized in that, The clamping plate has gripping parts on both sides, which are used to flip the clamped product during the light inspection process for observation.

14. The manual light inspection auxiliary tool for pre-filled syringe liquid dosage form products according to claim 13, characterized in that, The gripping part includes upper handles symmetrically arranged on the upper part of both sides of the clamping plate and lower handles symmetrically arranged on the lower part of the clamping plate; The upper handle is located on one of the two clamps, and the lower handle is located on the other clamp, which facilitates gripping during observation.

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