A new type of cartridge seal cap facilitating puncture installation
Patent Information
- Application Number
- CN202522348402.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0004]在实际生产中,工作人员发现插入端有插不到位的情况
1.刺破针的设置,可以直接将药卷的塑膜包装刺破,保证插入管按照设定位置垂直插入药卷中;
Smart Images

Figure CN224830337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosives packaging technology, and in particular to a novel cartridge sealing cap that facilitates puncture installation. Background Technology
[0002] Currently, civilian industrial explosives are packaged in plastic film at the factory. However, for special blasting requirements, they are typically wrapped on-site with water-resistant, pressure-resistant, and heat-resistant auxiliary materials to meet those requirements. These special blasting charges often involve first binding the industrial explosive to a bamboo pole, then securing other materials and using other unconventional methods to the outer surface before inserting it into the blast hole. This method increases the workload for workers, is cumbersome, increases safety risks, makes it difficult to control the loading accuracy, and ultimately restricts the quality of the blast.
[0003] To address this technical challenge, our company has developed a secondary packaging structure for industrial explosives. The Chinese utility model patent with patent publication number CN222364487U describes a composite packaging tube for industrial explosives used in special operating environments, comprising a shell and a cap. The cap has an insertion end at the bottom, with a pointed tip at the bottom, which facilitates insertion into the emulsion explosive.
[0004] In actual production, staff discovered that the insertion end sometimes failed to be inserted properly. The reason was that the existing explosives were packaged in plastic film. When the insertion end was inserted, it would slide against the explosive packaging. If the cap was pushed further into the casing, the insertion end would deform and could not be inserted vertically into the explosive as intended.
[0005] To address the problems in existing technologies, we propose a novel cartridge sealing cap that facilitates puncture installation. Utility Model Content
[0006] This utility model addresses the problems in the prior art by providing a novel cartridge sealing cap that facilitates puncture installation, achieved through the following technical solution: A novel cartridge sealing cap that facilitates puncture installation includes a cap body and an insertion tube. The insertion tube is disposed on the lower end face of the cap body and is integrally formed with the cap body. A sealing plate is integrally formed on the end of the insertion tube away from the cap body. A puncture needle is fixedly connected to the sealing plate. The puncture needle is coaxially arranged with the insertion tube, and the end of the puncture needle away from the sealing plate is tapered.
[0007] The present invention is further configured such that: the puncture needle includes a needle rod and a fixing plate, the needle rod is fixedly connected to one end face of the fixing plate, the diameter of the fixing plate is larger than the diameter of the needle rod, and the fixing plate is fixedly connected to the sealing plate.
[0008] The present invention is further configured such that: the sealing plate is fixedly connected with an elastic protective strip, the elastic protective strip is arranged at equal intervals along the circumference of the sealing plate, and the elastic protective strip covers the needle rod.
[0009] The present invention is further configured such that the deformation force of the elastic protective strip is less than the deformation force of the insertion tube.
[0010] In summary, the beneficial technical effects of this utility model are as follows: 1. The piercing needle is designed to pierce the plastic film packaging of the medicine roll directly, ensuring that the insertion tube is inserted vertically into the medicine roll at the set position; 2. When the sealing cap collides with other equipment, the elastic protective strip provides cushioning protection for the needle tip of the needle bar. Attached Figure Description
[0011] Figure 1 This is a schematic diagram used to illustrate the overall structure of this embodiment; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is an enlarged schematic diagram used to demonstrate a piercing needle.
[0012] Reference numerals: 1. Cover; 2. Insertion tube; 3. Sealing plate; 4. Puncture needle; 41. Needle shaft; 42. Fixing plate; 5. Elastic protective strip. Detailed Implementation
[0013] The present invention will be further described in detail below with reference to the accompanying drawings. Example
[0014] like Figure 1-3 As shown, this utility model discloses a novel medicine cartridge sealing cap that facilitates puncture installation. It includes a cap body 1 and an insertion tube 2. The insertion tube 2 is disposed on the lower end face of the cap body 1 and is integrally formed with the cap body 1. A sealing plate 3 is integrally formed on the end of the insertion tube 2 away from the cap body 1. A puncture needle 4 is fixedly connected to the sealing plate 3. The puncture needle 4 is coaxially arranged with the insertion tube 2, and the end of the puncture needle 4 away from the sealing plate 3 is tapered. The puncture needle is made of metal. When the sealing cap is pressed into the medicine cartridge, the puncture needle 4 directly punctures the plastic film packaging of the medicine cartridge, facilitating the insertion tube 2 to be inserted into the medicine cartridge. This avoids the situation where, with existing methods, the insertion tube 2 slides against the plastic film packaging of the medicine cartridge and cannot be inserted vertically into the medicine cartridge at the designated position.
[0015] The puncture needle 4 includes a needle shaft 41 and a fixing plate 42. The needle shaft 41 is fixedly connected to one end face of the fixing plate 42. The diameter of the fixing plate 42 is larger than the diameter of the needle shaft 41. The fixing plate 42 is fixedly connected to the sealing plate 3. The puncture needle 4 can be placed into the molding mold during the molding of the sealing cap and embedded into the sealing plate 3. When it is inconvenient for the outsourcing manufacturer to modify the mold, the fixing plate 42 can be fixed to the surface of the sealing plate 3 using adhesive after the sealing cap is molded. The fixing method of the fixing plate 42 can be determined according to the specific production situation of the outsourcing manufacturer of the sealing cap. Whether it is embedded into the sealing plate 3 during molding or glued with sealant, the setting of the fixing plate 42 greatly increases the firmness of the connection between the puncture needle 4 and the sealing plate 3.
[0016] To prevent the needle rod 41 from colliding with other equipment during molding, transfer, and packaging processes, which could dull the needle tip, an elastic protective strip 5 is fixedly connected to the sealing plate 3 to protect the needle rod 41. The elastic protective strip 5 is evenly spaced along the circumference of the sealing plate 3, covering the needle rod 41. The deformation force of the elastic protective strip 5 is less than that of the insertion tube 2. When the needle rod 41 collides with other equipment, the elastic protective strip 5 acts as a buffer, protecting the needle rod 41.
Claims
1. A novel cartridge sealing cap facilitating puncture installation, comprising a cap body (1) and an insertion tube (2), wherein the insertion tube (2) is disposed on the lower end face of the cap body (1) and integrally formed with the cap body (1), characterized in that, The insertion tube (2) has a sealing plate (3) integrally formed at the end away from the cover (1). A piercing needle (4) is fixedly connected to the sealing plate (3). The piercing needle (4) is coaxially arranged with the insertion tube (2). The end of the piercing needle (4) away from the sealing plate (3) is conical.
2. The novel cartridge sealing cap facilitating puncture installation according to claim 1, characterized in that, The puncture needle (4) includes a needle rod (41) and a fixing plate (42). The needle rod (41) is fixedly connected to one side end face of the fixing plate (42). The diameter of the fixing plate (42) is larger than the diameter of the needle rod (41). The fixing plate (42) is fixedly connected to the sealing plate (3).
3. A novel cartridge sealing cap facilitating puncture installation according to claim 2, characterized in that, The sealing plate (3) is fixedly connected with an elastic protective strip (5). The elastic protective strip (5) is evenly spaced along the circumference of the sealing plate (3) and covers the needle rod (41).
4. A novel cartridge sealing cap facilitating puncture installation according to claim 3, characterized in that, The deformation force of the elastic protective strip (5) is less than that of the insertion tube (2).
Citation Information
Patent Citations
Industrial explosive composite packaging barrel for special operation environment
CN222364487U