A double-sealed sterile sealing cap and a full burlap bag
The design of the double sealing structure, including the interference fit between the inner and outer caps, and the combined use of a vacuum valve and an annular air bladder, solves the problem of decreased sealing performance of the burlap sack sealing cap during storage and transportation, ensuring the stability of the sterile state and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG GAOGUAN MEDICAL EQUIP CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-26
AI Technical Summary
Existing fully sealed caps for hemp bags are easily affected by the external environment during long-term storage or transportation, leading to a decline in sealing performance, the possibility of external contaminants entering and affecting the sterile state, and the seal is not tight during opening and closing.
It adopts a double sealing structure, including an interference fit between the first annular sealing ridge and groove between the inner cover and the outer cover, a vacuum valve for vacuum sealing, an annular airbag for tight sealing, and a locking component to ensure stability.
It improves the overall sealing effect of the sealing cap, adapts to different usage scenarios, maintains the sterile state inside the container, is simple and convenient to operate, and has high stability.
Smart Images

Figure CN224278299U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a double-sealed sterile sealing cap and a full burlap sack. Background Technology
[0002] In the medical field, general anesthesia pouches are crucial packaging for storing various medical devices and medications required during general anesthesia. These pouches typically contain anesthetic catheters, syringes, and sterilization supplies, the sterility of which directly impacts patient safety. Currently, most general anesthesia pouches on the market use a single sealing structure, such as a simple flip-top seal or a single sealing ring. However, this single sealing structure is susceptible to external environmental influences during long-term storage or transportation, such as changes in air pressure, humidity fluctuations, and vibrations, leading to a decline in sealing performance. External bacteria, dust, and other contaminants may enter the pouch, compromising the sterile environment of the contents and increasing the risk of patient infection. Furthermore, existing general anesthesia pouches often have insufficiently tight fit between the sealing cap and the pouch body during opening and closing, easily loosening and further affecting the sealing effect. Therefore, there is an urgent need for a sterile sealing cap and general anesthesia pouch with a superior sealing structure to improve sealing performance and ensure the sterility of the contents. Utility Model Content
[0003] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a double-sealed sterile sealing cap and a full burlap bag, which has the advantages of good sealing performance and ensuring the sterility of the container.
[0004] To achieve the above objectives, this utility model provides a double-sealed sterile sealing cap and a burlap sack, which includes an inner cap, an outer cap, and a sealing assembly disposed between the inner cap and the outer cap.
[0005] The inner cover has a first annular sealing protrusion at its edge, and the outer cover has a corresponding first annular sealing groove on its inner wall. The first annular sealing protrusion and the first annular sealing groove are press-fitted together to form an inner cavity.
[0006] The outer cover edge is also provided with a second annular sealing ridge;
[0007] An air hole is provided in the middle of the inner cover;
[0008] The sealing assembly includes a vacuum valve embedded in the top of the outer cover, which evacuates and seals the inside of the container through an air hole; it also includes an annular airbag embedded in the inner wall of the second annular sealing ridge, which is connected to an inflation port located on one side of the outer cover.
[0009] The outer cover is also equipped with a locking assembly at its top for further sealing between the outer cover and the container.
[0010] As a preferred technical solution, both the first annular sealing groove and the first annular sealing ridge are provided with sealing rings to further enhance the sealing between the inner cover and the outer cover.
[0011] As a preferred technical solution, the depth of the first annular sealing groove is consistent with the height of the first annular sealing ridge, and the groove width is adapted to the bottom width of the first annular sealing ridge.
[0012] As a preferred technical solution, the annular airbag is made of silicone rubber material, and its cross-sectional diameter after inflation is 1.5-2 times larger than that of the uninflated state, forming a radial compression sealing structure.
[0013] As a preferred technical solution, the bottom end of the vacuum valve penetrates through the outer cover into the cavity, and the top end extends to the outside of the outer cover.
[0014] As a preferred technical solution, the vacuum valve and the air inlet are respectively provided with a sealing cover one and a sealing cover two.
[0015] As a preferred technical solution, the locking assembly includes a pressing block, an elastic connecting strip, and a latch. The pressing block is located at the top center of the inner cover. One end of the elastic connecting strip is fixedly connected to the pressing block, and the other end is fixedly connected to the latch. A lock head that cooperates with the latch is provided on one side of the container.
[0016] As a preferred technical solution, the sterile sealing cap with double sealing as described in any one of claims 1-7 is adopted.
[0017] In summary, the beneficial effects of the above-described technical solutions conceived in this utility model compared with the prior art include:
[0018] This invention discloses a double-sealed aseptic sealing cap. A vacuum valve creates a vacuum environment inside the container, inhibiting the growth of bacteria and other microorganisms. The inflated annular airbag then fits tightly against the container opening, further enhancing the sealing performance. These two elements work together to improve the overall sealing effect and adapt to different usage scenarios and needs. For example, in environments with extremely high aseptic requirements, the double sealing method can more effectively maintain the aseptic state inside the container. The locking assembly's press block, elastic connecting strip, and buckle design make operation simple and convenient. Pressing the press block secures the sealing cap to the container, while the elastic tension of the connecting strip ensures the sealing cap will not easily loosen or fall off during use, enhancing its stability. Furthermore, the matching dimensions of the first annular sealing groove and the first annular sealing ridge, along with the reasonable expansion ratio of the annular airbag, make the installation and use of the sealing cap smoother and reduce operational difficulty. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the separation structure of the double-sealed aseptic cap of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of the double-sealed sterile sealing cap of this utility model;
[0021] Figure 3 Right view of the cross-section of the double-sealed sterile sealing cap of this utility model;
[0022] Figure 4 This is a schematic diagram of the outer cover structure in this utility model;
[0023] Figure 5 This is a schematic diagram of the inner cover structure in this utility model.
[0024] The meanings of the markings in the attached diagram are as follows:
[0025] 1. Inner cover; 101. First annular sealing ridge; 102. Cavity; 103. Air vent;
[0026] 104. Sealing ring; 2. Outer cover; 201. First annular sealing groove; 202. Second annular sealing ridge; 3. Sealing assembly; 301. Vacuum valve; 3011. Sealing cover one; 302. Annular airbag; 303. Inflation port; 3031. Sealing cover two; 4. Locking assembly; 401. Pressing block; 402. Elastic connecting strip; 403. Locking buckle; Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0029] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0030] In the embodiments, by Figure 1-5 Give, Figure 1 This is a schematic diagram of the separation structure of the double-sealed aseptic cap of this utility model; Figure 2 This is a schematic diagram of the overall structure of the double-sealed sterile sealing cap of this utility model; Figure 3 Right view of the cross-section of the double-sealed sterile sealing cap of this utility model; Figure 4 This is a schematic diagram of the outer cover structure in this utility model; Figure 5 This is a schematic diagram of the inner cover structure of the present invention, which includes an inner cover 1, an outer cover 2, and a sealing component 3 disposed between the inner cover 1 and the outer cover 2;
[0031] The inner cover 1 has a first annular sealing protrusion 101 on its edge, and the outer cover 2 has a corresponding first annular sealing groove 201 on its inner wall. The first annular sealing protrusion 101 and the first annular sealing groove 201 are press-fitted together to form an inner cavity 102.
[0032] The outer cover 2 is also provided with a second annular sealing ridge 202 at its edge;
[0033] The inner cover 1 has an air hole 103 in the middle;
[0034] The sealing assembly 3 includes a vacuum valve 301 embedded in the top of the outer cover 2, which vacuums and seals the inside of the container through an air hole 103; it also includes an annular airbag 302 embedded in the inner wall of the second annular sealing ridge 202, which is connected to an inflation port 303 located on one side of the outer cover 2.
[0035] The outer cover 2 is also provided with a locking component 4 on its top, which is used to further seal the outer cover 2 and the container.
[0036] Both the first annular sealing groove 201 and the first annular sealing ridge 101 are provided with sealing rings 104 to further enhance the sealing between the inner cover 1 and the outer cover 2.
[0037] The depth of the first annular sealing groove 201 is consistent with the height of the first annular sealing ridge 101, and the width of the groove is adapted to the width of the bottom of the first annular sealing ridge 101.
[0038] The annular airbag 203 is made of silicone rubber material. Its cross-sectional diameter after inflation is 1.5-2 times larger than that of the uninflated state, forming a radial compression sealing structure.
[0039] The bottom end of the vacuum valve 301 penetrates through the outer cover 2 into the cavity 102, and the top end extends to the outside of the outer cover 2.
[0040] The vacuum valve 301 and the air inlet 303 are respectively provided with a sealing cover 3011 and a sealing cover 3031.
[0041] The locking assembly 4 includes a pressing block 401, an elastic connecting strip 402, and a latch 403. The pressing block 401 is located at the top center of the inner cover 1. One end of the elastic connecting strip 402 is fixedly connected to the pressing block 401, and the other end is fixedly connected to the latch 403. A lock head that cooperates with the latch 403 is provided on one side of the container.
[0042] A fully hemp bag employs a sterile sealing cap with double sealing as described in any one of claims 1-7.
[0043] Assemble the inner cover 1 and the outer cover 2. Align the first annular sealing protrusion 101 on the edge of the inner cover 1 with the first annular sealing groove 201 on the inner wall of the outer cover 2. Since the depth of the first annular sealing groove 201 is consistent with the height of the first annular sealing protrusion 101, and the groove width is adapted to the bottom width of the first annular sealing protrusion 101, embed the first annular sealing protrusion 101 into the first annular sealing groove 201. The two are interference-fitted to form an inner cavity 102. At the same time, a sealing ring 104 is pre-set on the first annular sealing groove 201 and the first annular sealing protrusion 101. The sealing ring 104 further enhances the sealing between the inner cover 1 and the outer cover 2, effectively preventing gas and liquid from seeping through the gap between them. Install the inner cover 1 and outer cover 2 onto the inner wall of the container containing the burlap sack. At this point, the inner wall of the container containing the burlap sack is flush with the bottom outer wall of the inner cover 1, and the outer wall of the container containing the burlap sack is flush with the inner wall of the outer cover 2. Open the sealing cap 3011 and use the vacuum valve 301 to create a vacuum inside the container. Because the inner cover 1 has an air hole 103 in the middle, air inside the container is extracted through the air hole 103 and the vacuum valve 301, creating a vacuum inside the container. This achieves a vacuum seal on the burlap sack, effectively preventing bacteria and other microorganisms from entering the container and ensuring the burlap sack remains sterile. After vacuuming, close the sealing cap 3011 to prevent outside air from entering. Open the sealing cap 3031 and inflate the annular airbag 302 through the inflation port 303. The annular airbag 302 expands, increasing its cross-sectional diameter by 1.5-2 times, forming a radial compression sealing structure. The annular airbag 302 fits tightly against the container opening, further enhancing the seal between the cap and the container and preventing external gas and liquid from entering the container. After inflation, close the sealing cap 3031. Press the pressing block 401 to stretch the elastic connecting strip 402, engaging the latch 403 onto the lock head on the container. The elastic tension of the connecting strip 402 ensures a tight fit between the outer cap 2 and the container, further enhancing the sealing effect and also securing the cap to prevent it from loosening or falling off during use.
[0044] In summary, this invention provides a double-sealed aseptic sealing cap. A vacuum valve allows for vacuuming of the container's interior, creating a vacuum environment that inhibits the growth of bacteria and other microorganisms. The inflated annular airbag then tightly seals against the container opening, further enhancing the sealing performance. These two elements work together to improve the overall sealing effect and adapt to various usage scenarios and needs. For example, in environments with extremely high aseptic requirements, the double-sealing method more effectively maintains the aseptic state within the container. The locking assembly's press block, elastic connecting strip, and buckle design make operation simple and convenient. Pressing the press block secures the sealing cap to the container, while the elastic tension of the connecting strip ensures the cap won't easily loosen or fall off during use, enhancing its stability. Furthermore, the matching dimensions of the first annular sealing groove and the first annular sealing ridge, along with the optimized expansion ratio of the annular airbag, make installation and use of the sealing cap smoother and reduce operational difficulty.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A double-sealed sterile sealing cap for sealing and packaging burlap sacks, characterized in that: It includes an inner cover (1), an outer cover (2), and a sealing assembly (3) disposed between the inner cover (1) and the outer cover (2); The inner cover (1) has a first annular sealing protrusion (101) on its edge, and the outer cover (2) has a corresponding first annular sealing groove (201) on its inner wall. The first annular sealing protrusion (101) and the first annular sealing groove (201) are press-fitted to form an inner cavity (102). The outer cover (2) is also provided with a second annular sealing ridge (202) at its edge; The inner cover (1) has an air hole (103) in the middle. The sealing assembly (3) includes a vacuum valve (301) embedded in the top of the outer cover (2), the vacuum valve (301) evacuates and seals the inside of the container through an air hole (103); it also includes an annular airbag (302) embedded in the inner wall of the second annular sealing ridge (202), the annular airbag (302) being connected to an inflation port (303) located on one side of the outer cover (2). The outer cover (2) is also provided with a locking component (4) at the top, which is used to further seal the outer cover (2) and the container.
2. A double-sealed sterile sealing cap according to claim 1, characterized in that: Both the first annular sealing groove (201) and the first annular sealing ridge (101) are provided with sealing rings (104) to further enhance the sealing between the inner cover (1) and the outer cover (2).
3. A double-sealed sterile sealing cap according to claim 1, characterized in that: The depth of the first annular sealing groove (201) is consistent with the height of the first annular sealing ridge (101), and the width of the groove is adapted to the bottom width of the first annular sealing ridge (101).
4. A double-sealed sterile sealing cap according to claim 1, characterized in that: The annular airbag (302) is made of silicone rubber material. Its cross-sectional diameter after inflation is 1.5-2 times larger than that of the uninflated state, forming a radial compression sealing structure.
5. A double-sealed sterile sealing cap according to claim 1, characterized in that: The bottom end of the vacuum valve (301) penetrates through the outer cover (2) into the cavity (102), and the top end extends to the outside of the outer cover (2).
6. A double-sealed sterile sealing cap according to claim 1, characterized in that: The vacuum valve (301) and the air inlet (303) are respectively provided with a sealing cover one (3011) and a sealing cover two (3031).
7. The double-sealed sterile cap according to claim 1, characterized in that: The locking assembly (4) includes a pressing block (401), an elastic connecting strip (402), and a latch (403). The pressing block (401) is located at the top center of the inner cover (1). One end of the elastic connecting strip (402) is fixedly connected to the pressing block (401), and the other end is fixedly connected to the latch (403). A lock head that cooperates with the latch (403) is provided on one side of the container.
8. A type of hemp bag, characterized in that: The sterile sealing cap with double sealing as described in any one of claims 1-7 is used.