Double-layered gelatin hollow capsule
By using a double-layer hollow capsule design, the inner capsule body is limited and isolated by the outer capsule cap and the bottom support plate. The inner capsule body and the inner capsule cap work together to seal, while the outer capsule cap and the outer capsule body are isolated as a whole. This solves the problems of easy deformation and drug leakage of existing hollow capsules and achieves stable connection and sealing effect of the capsule.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 绍兴海邦药业有限公司
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Because of their low hardness, existing empty capsules are easily deformed by external forces during packaging and transportation, resulting in gaps between the capsule body and the capsule cap, which can lead to drug leakage.
The hollow capsule features a double-layer structure, including an inner capsule body, an outer capsule cap, a bottom support plate, an inner capsule cap, an outer capsule body, and a limiting ring. The outer capsule cap and the bottom support plate limit and isolate the inner capsule body, while the inner capsule body and the inner capsule cap work together to seal the capsule. The outer capsule cap and the outer capsule body provide overall isolation and protection to prevent deformation and drug leakage.
It effectively prevents capsule deformation and drug leakage caused by external forces, ensures stable capsule connection and sealing, and prevents drug leakage.
Smart Images

Figure CN224387796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of empty capsules, and in particular to the technical field of double-layer gelatin empty capsules. Background Technology
[0002] Empty capsules are hollow shells made of pharmaceutical gelatin and excipients, used to contain solid or liquid drugs. They mainly consist of a capsule body and a capsule cap. However, because the main material of existing empty capsules is gelatin, which has low hardness, it is easily deformed by external forces during packaging and transportation. This can easily cause gaps between the capsule body and the capsule cap, resulting in the leakage of the internal drug. Summary of the Invention
[0003] The purpose of this invention is to solve the problems in the existing technology by proposing a double-layer gelatin hollow capsule, which can isolate and protect the inner capsule body and inner capsule cap by working together with the outer capsule cap, effectively preventing external forces from deforming the inner capsule body and inner capsule cap, and preventing capsule drug leakage.
[0004] To achieve the above objectives, this utility model proposes a double-layer gelatin hollow capsule, comprising an inner capsule body, an outer capsule cap, a bottom support plate, an inner capsule cap, an outer capsule body, and a limiting ring. The outer capsule cap is fitted over the outer part of the inner capsule body. Several bottom support plates, which are fixedly connected to the outer capsule cap, are evenly arranged around the lower part of the outer side of the inner capsule body. The inner capsule cap is fitted over the top of the inner capsule body. The outer capsule body is fitted over the outer side of the inner capsule cap. The outer capsule cap is fitted over the bottom of the outer capsule body. A limiting ring is provided on the upper part of the inner side of the outer capsule cap. The bottom end of the outer capsule body is limited and locked onto the limiting ring.
[0005] Preferably, the inner capsule cap and the outer capsule body do not contact each other, and a cross support is integrally provided on the top of the inner side of the outer capsule body.
[0006] Preferably, a limiting ring groove is provided on the top of the outer side of the inner capsule body, and the bottom end of the inner capsule cap is engaged in the limiting ring groove.
[0007] Preferably, the outer capsule cap and the inner capsule body are an integral structure, the side walls of the outer capsule cap and the inner capsule body do not contact each other, and the bottom ends of the outer capsule cap and the inner capsule body are fixedly connected.
[0008] Preferably, the inner capsule body, outer capsule cap, bottom support plate, inner capsule cap, outer capsule body, and limiting ring are all gelatin molded components.
[0009] Preferably, the bottom support plate is vertically disposed on the lower part of the outer side of the inner capsule body.
[0010] The beneficial effects of this utility model are as follows: By combining the inner capsule body, outer capsule cap, bottom support plate, inner capsule cap, outer capsule body, and limiting ring, and through experimental optimization, this utility model can limit and isolate the inner capsule body through the outer capsule cap and bottom support plate, contain and seal the drug through the inner capsule body and inner capsule cap, and provide overall isolation and protection for the inner capsule body and inner capsule cap through the outer capsule cap and outer capsule body. This effectively prevents external forces from deforming the inner capsule body and inner capsule cap, and ensures a stable and secure connection between the inner capsule body and inner capsule cap, effectively preventing the occurrence of capsule drug leakage.
[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the double-layer gelatin hollow capsule of this utility model.
[0013] In the diagram: 1-Inner capsule body, 2-Outer capsule cap, 3-Bottom support plate, 4-Inner capsule cap, 5-Outer capsule body, 6-Limiting ring, 7-Cross bracket. Detailed Implementation
[0014] See Figure 1 This utility model relates to a double-layer gelatin hollow capsule, comprising an inner capsule body 1, an outer capsule cap 2, a bottom support plate 3, an inner capsule cap 4, an outer capsule body 5, and a limiting ring 6. The outer capsule cap 2 is fitted over the outer part of the inner capsule body 1. Several bottom support plates 3, fixedly connected to the outer capsule cap 2, are evenly arranged around the lower outer side of the inner capsule body 1. The inner capsule cap 4 is fitted over the top of the inner capsule body 1. The outer capsule body 5 is fitted over the outer side of the inner capsule cap 4. The outer capsule cap 2 is fitted over the bottom of the outer capsule body 5. A limiting ring 6 is provided on the upper inner side of the outer capsule cap 2. The bottom end of the outer capsule body 5 is limited and secured to the limiting ring 6. The inner capsule cap 4 and the outer capsule body 5 do not contact each other. The top of the inner side of the outer capsule body 5 is integrally provided with a cross bracket 7. The top of the outer side of the inner capsule body 1 is provided with a limiting ring groove. The bottom end of the inner capsule cap 4 is locked in the limiting ring groove. The outer capsule cap 2 and the inner capsule body 1 are an integral structure. The side walls of the outer capsule cap 2 and the inner capsule body 1 do not contact each other. The bottom ends of the outer capsule cap 2 and the inner capsule body 1 are fixedly connected. The inner capsule body 1, the outer capsule cap 2, the bottom support plate 3, the inner capsule cap 4, the outer capsule body 5 and the limiting ring 6 are all gelatin molded parts. The bottom support plate 3 is vertically arranged on the lower part of the outer side of the inner capsule body 1.
[0015] This invention combines an inner capsule body 1, an outer capsule cap 2, a bottom support plate 3, an inner capsule cap 4, an outer capsule body 5, and a limiting ring 6. Through experimental optimization, the outer capsule cap 2, in conjunction with the bottom support plate 3, provides limiting isolation and protection for the inner capsule body 1. The inner capsule body 1, in conjunction with the inner capsule cap 4, contains and seals the drug. The outer capsule cap 2, in conjunction with the outer capsule body 5, provides overall isolation and protection for the inner capsule body 1 and the inner capsule cap 4. This effectively prevents external forces from deforming the inner capsule body 1 and the inner capsule cap 4. The connection and seal between the inner capsule body 1 and the inner capsule cap 4 are stable and secure, effectively preventing capsule drug leakage.
[0016] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A double-layered gelatin hollow capsule, characterized in that: The capsule includes an inner capsule body (1), an outer capsule cap (2), a bottom support plate (3), an inner capsule cap (4), an outer capsule body (5), and a limiting ring (6). The outer capsule cap (2) is fitted on the outside of the inner capsule body (1). Several bottom support plates (3) that are fixedly connected to the outer capsule cap (2) are evenly arranged around the lower part of the outer side of the inner capsule body (1). The inner capsule cap (4) is fitted on the top of the inner capsule body (1). The outer capsule body (5) is fitted on the outside of the inner capsule cap (4). The outer capsule cap (2) is fitted on the bottom of the outer capsule body (5). A limiting ring (6) is provided on the upper part of the inner side of the outer capsule cap (2). The bottom end of the outer capsule body (5) is limited and locked on the limiting ring (6).
2. The double-layer gelatin hollow capsule as described in claim 1, characterized in that: The inner capsule cap (4) and the outer capsule body (5) do not contact each other, and the top of the inner side of the outer capsule body (5) is integrally provided with a cross support (7).
3. The double-layer gelatin hollow capsule as described in claim 1, characterized in that: The outer side of the inner capsule body (1) is provided with a limiting ring groove, and the bottom end of the inner capsule cap (4) is locked in the limiting ring groove.
4. The double-layer gelatin hollow capsule as described in claim 1, characterized in that: The outer capsule cap (2) and the inner capsule body (1) are an integral structure. The side walls of the outer capsule cap (2) and the inner capsule body (1) do not contact each other, and the bottom ends of the outer capsule cap (2) and the inner capsule body (1) are fixedly connected.
5. The double-layer gelatin hollow capsule as described in claim 1, characterized in that: The inner capsule body (1), outer capsule cap (2), bottom support plate (3), inner capsule cap (4), outer capsule body (5) and limiting ring (6) are all gelatin molded parts.
6. The double-layer gelatin hollow capsule as described in claim 1, characterized in that: The bottom support plate (3) is vertically set on the lower part of the outer side of the inner capsule body (1).