Medicinal low borosilicate glass tube with good photophobic property
By incorporating a light-shielding tube and clamping block structure on the outside of pharmaceutical low-borosilicate glass tubes, the problems of adaptability to light-shielding design and complex assembly of existing pharmaceutical low-borosilicate glass tubes are solved, achieving convenient assembly and efficient light shielding, and ensuring the safety and stability of drug storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG XINDE MEDICINE PACKING MATERIAL CO LTD
- Filing Date
- 2024-12-09
- Publication Date
- 2026-04-14
AI Technical Summary
Existing pharmaceutical low borosilicate glass tubes have limited adaptability in terms of light-shielding design, and are complex to assemble and disassemble, making it difficult to meet the needs of glass tubes of different specifications.
A pharmaceutical low borosilicate glass tube structure was designed, comprising a light-shielding tube, a clamping block, and an elastic element. The spacing between the light-shielding tube and the glass tube, along with the cooperation of the clamping block, enables convenient assembly and stable fixation. The threaded connection between the top cover and the connecting seat ensures the airtightness of the light-shielding tube.
It achieves universal adaptability to glass tubes of different specifications, simplifies the assembly and disassembly process, and improves the light-shielding effect and the safety and stability of drug storage.
Smart Images

Figure CN224113013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low borosilicate glass tube technology, and in particular to a pharmaceutical low borosilicate glass tube with good light-shielding properties. Background Technology
[0002] Pharmaceutical-grade low-borosilicate glass tubing is a type of glass tubing specifically designed for pharmaceutical packaging. Its main components include silica and boron oxide. This type of glass tubing is renowned for its excellent chemical stability, heat resistance, and low coefficient of linear expansion. These properties allow it to maintain structural integrity even under significant temperature variations, making it ideal for manufacturing pharmaceutical containers that need to withstand large temperature differences.
[0003] Given that some drugs are prone to oxidative decomposition under light exposure, potentially leading to decreased efficacy, color changes, or precipitation, thereby affecting therapeutic effects and even increasing toxicity, using glass tubes with excellent light-shielding properties can effectively prevent the influence of light, ensuring the stability and safety of the drugs. Currently, most high-efficiency light-shielding glass tubes on the market employ a double-layer structure design, consisting of an inner transparent glass tube and an outer light-shielding sleeve. However, current designs often require custom-made light-shielding sleeves to match the specific glass tube dimensions, limiting adaptability to different glass tube sizes. Furthermore, the tight fit between the sleeve and the glass tube not only increases assembly difficulty but also complicates subsequent disassembly and replacement.
[0004] To address these issues, it is particularly important to develop a pharmaceutical-grade low-borosilicate glass tube that is easy to assemble and provides good light protection, thereby improving the product's versatility and ease of use. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, it is particularly important to provide a pharmaceutical low borosilicate glass tube that is easy to assemble and has good light-shielding properties, thereby improving the versatility and ease of use of the product.
[0006] The technical solution is as follows: A pharmaceutical low borosilicate glass tube with good light-shielding properties includes a glass tube, a rubber cap, a label, a light-shielding tube, a mounting frame, guide rods, clamping blocks, and elastic elements. A rubber cap for sealing the opening is inserted at the top of the glass tube. A label is also fitted on the upper part of the glass tube, and a light-shielding tube is fitted around the outer ring of the glass tube. There is a gap between the light-shielding tube and the glass tube. Two sets of mounting frames are arranged vertically and horizontally on the light-shielding tube. Guide rods are symmetrically spaced on the mounting frames. Clamping blocks that penetrate adjacent mounting frames are slidably arranged between the guide rods. Elastic elements are provided between the clamping blocks and the corresponding guide rods. Each clamping block cooperates to clamp and fix the glass tube.
[0007] Preferably, it also includes a chassis, with the bottom of the light-shielding cylinder having a chassis diameter larger than that of the light-shielding cylinder.
[0008] Preferably, a slot is provided at the center of the chassis to facilitate the removal of the glass tube by pushing it out.
[0009] Preferably, the device also includes a connecting seat, a connecting rope, and a top cover. The top of the light-shielding tube is provided with a connecting seat that has circumferential threads. A connecting rope is provided on one side of the light-shielding tube, and the end of the connecting rope is connected to the top cover. The top cover is threadedly engaged with the connecting seat to close the opening of the light-shielding tube.
[0010] Preferably, the side of the clamping block that is in contact with the glass tube has an arranged serrated groove.
[0011] Preferably, the upper and lower end faces of the clamping block are both inclined, and the inclined surfaces on both sides are gradually inclined towards the middle of the clamping block.
[0012] The present invention has the following advantages: 1. By adding a light-shielding tube to the outside of the glass tube and using a clamping block to ensure the fixed position between the light-shielding tube and the glass tube, the present invention effectively avoids direct sunlight from shining on the medicine inside the tube, significantly reduces the chemical changes of the medicine caused by light, and ensures the quality and safety of the medicine. In addition, thanks to the ingenious design of the clamping block and elastic element, the glass tube can be conveniently and stably assembled in the light-shielding tube, as well as simple and quick disassembly operation.
[0013] 2. By configuring a top cover and utilizing the threaded connection between the connecting seat and the top cover, this utility model achieves effective sealing of the upper part of the light-shielding cylinder, which not only enhances the sealing performance of the top of the light-shielding cylinder and further improves the light-shielding effect, but also provides a safer and more reliable storage condition for drugs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the glass tube, rubber cap, and label of this utility model.
[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the glass tube, light-shielding cylinder, and chassis components of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the mounting frame, guide rod, and clamping block of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the connecting seat, connecting rope, and top cover of this utility model.
[0019] Reference numerals: 1: Glass tube, 2: Rubber cover, 3: Label, 4: Light shield, 5: Mounting frame, 6: Guide rod, 7: Clamping block, 71: Serrated groove, 72: Bevel, 8: Elastic element, 9: Base, 10: Hole, 11: Connecting seat, 12: Connecting rope, 13: Top cover. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0021] Example: A pharmaceutical-grade low-borosilicate glass tube with good light-shielding properties, such as... Figures 1-4 As shown, the device includes a glass tube 1, a rubber cap 2, a label 3, a light-shielding tube 4, a mounting frame 5, a guide rod 6, a clamping block 7, and an elastic element 8. The glass tube 1 is the main storage container for storing medicines. A rubber cap 2 is inserted at the top of the glass tube 1 to seal the opening, preventing contamination or leakage of the medicine. A label 3 is also fitted on the upper part of the glass tube 1, which can be used to mark medicine information such as name and dosage. A light-shielding tube 4 is fitted around the outer ring of the glass tube 1, with a gap between the light-shielding tube 4 and the glass tube 1 to provide additional physical protection. The extra space can flexibly accommodate the placement of glass tubes 1 of different sizes. The important feature of the light-shielding tube 4 is that it can effectively block light, protecting the internal medicine from light exposure and thus extending the shelf life of the medicine. Two sets of mounting frames 5 are arranged vertically and horizontally on the light-shielding tube 4, with four frames in each set, so that the two sets of mounting frames 5... Located at different heights in the light-shielding tube 4, the components can work together with subsequent parts to precisely position the glass tube 1 around it. Guide rods 6 are symmetrically spaced on the upper and lower parts of the mounting frame 5. Clamping blocks 7 are slidably arranged between two guide rods 6, penetrating adjacent mounting frames 5. Elastic elements 8 are provided between the clamping blocks 7 and the corresponding guide rods 6. In this embodiment, the elastic element 8 is a spring. Each clamping block 7 works together to clamp and fix the glass tube 1. The elastic element 8 provides an outward expansion force to the clamping blocks 7, ensuring that the clamping blocks 7 can tightly clamp the glass tube 1. Furthermore, the side of the clamping block 7 that is in contact with the glass tube 1 has an arranged serrated groove 71. The serrated groove 71 contacts the surface of the glass tube 1, increasing the friction and ensuring that the glass tube 1 is firmly fixed in the light-shielding tube 4. At the same time, the upper and lower end faces of the clamping blocks 7 are both inclined surfaces 72. The inclined surfaces 72 on both sides are gradually inclined towards the middle of the clamping blocks 7. The inclined surfaces 72 make the assembly of the glass tube 1 more convenient.
[0022] like Figure 1 , Figure 3 andFigure 4 As shown, it also includes a base plate 9. The bottom of the light-shielding tube 4 is provided with a base plate 9. The diameter of the base plate 9 is larger than the diameter of the light-shielding tube 4, thereby increasing the overall stability. A slot 10 is provided in the center of the base plate 9 to facilitate the removal of the glass tube 1 by pushing it out. This allows the user to use a tool (e.g., a needle) to push the glass tube 1 out from the slot 10.
[0023] like Figure 1 and Figure 5 As shown, it also includes a connecting seat 11, a connecting rope 12, and a top cover 13. The top of the light-shielding cylinder 4 is provided with a connecting seat 11 with threads along the circumference. A connecting rope 12 is provided on one side of the light-shielding cylinder 4. The end of the connecting rope 12 is connected to the top cover 13. The top cover 13 is threadedly engaged with the connecting seat 11, thereby sealing the opening of the light-shielding cylinder 4. The connecting rope 12 connects the top cover 13 to the light-shielding cylinder 4 to prevent the top cover 13 from being lost.
[0024] In use, first remove the rubber cap 2 from the glass tube 1, then add the medicine to be stored into the glass tube 1. After adding the medicine, replace the rubber cap 2 and record the relevant information of the medicine on the label 3, then place the label 3 on the outside of the glass tube 1. Next, slowly place the glass tube 1 containing the medicine into the light-shielding cylinder 4. As the glass tube 1 descends, its bottom will touch the inclined surface 72 of the clamping block 7. This design causes the clamping block 7 to slide along the guide rod 6 on the mounting frame 5, achieving outward expansion and deformation of the elastic element 8. When the bottom of the glass tube 1 contacts the base 9, the restoring force of the elastic element 8 will cause the clamping block 7 to press tightly against the glass tube 1, thereby clamping the glass tube 1 and ensuring that the glass tube 1 is stably fixed inside the light-shielding cylinder 4. Finally, place the top cover 13 of the light-shielding cylinder 4 onto the connecting seat 11 and tighten it to ensure that the top of the light-shielding cylinder 4 is well sealed, thereby effectively preventing light exposure, protecting the drug from unnecessary chemical changes due to light exposure, and improving the safety and effectiveness of drug storage.
[0025] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.
Claims
1. A pharmaceutical low-borosilicate glass tube with good light-shielding properties, comprising a glass tube (1), characterized in that, It also includes a rubber cap (2), a label (3), a light-shielding tube (4), a mounting frame (5), a guide rod (6), a clamping block (7), and an elastic element (8). The top of the glass tube (1) is fitted with a rubber cap (2) for closing the opening. A label (3) is also fitted on the upper part of the glass tube (1). A light-shielding tube (4) is fitted on the outer ring of the glass tube (1). There is a gap between the light-shielding tube (4) and the glass tube (1). Two sets of mounting frames (5) are arranged in a vertically spaced manner along the circumference of the light-shielding tube (4). Guide rods (6) are symmetrically spaced on the mounting frames (5). Clamping blocks (7) that penetrate adjacent mounting frames (5) are slidably arranged between the guide rods (6). An elastic element (8) is provided between the clamping block (7) and the corresponding guide rod (6). Each clamping block (7) cooperates to clamp and fix the glass tube (1).
2. The pharmaceutical low-borosilicate glass tube with good light-shielding properties according to claim 1, characterized in that, It also includes a chassis (9), the bottom of the light-shielding tube (4) is provided with a chassis (9), the diameter of the chassis (9) is larger than the diameter of the light-shielding tube (4).
3. The pharmaceutical low-borosilicate glass tube with good light-shielding properties according to claim 2, characterized in that, The center of the chassis (9) is provided with a slot (10) to facilitate the removal of the glass tube (1) by pushing it out.
4. The pharmaceutical low-borosilicate glass tube with good light-shielding properties according to claim 3, characterized in that, It also includes a connecting seat (11), a connecting rope (12) and a top cover (13). The top of the light-shielding cylinder (4) is provided with a connecting seat (11) with a circumferential thread. A connecting rope (12) is provided on one side of the light-shielding cylinder (4). The end of the connecting rope (12) is connected to the top cover (13). The top cover (13) is threadedly engaged with the connecting seat (11) to close the opening of the light-shielding cylinder (4).
5. A pharmaceutical low-borosilicate glass tube with good light-shielding properties according to claim 4, characterized in that, The clamping block (7) has a series of serrated grooves (71) on the side that is in contact with the glass tube (1).
6. A pharmaceutical low-borosilicate glass tube with good light-shielding properties according to claim 5, characterized in that, The clamping block (7) has inclined surfaces (72) on both the upper and lower ends, and the inclined surfaces (72) on both sides are inclined towards the middle of the clamping block (7).