Double-pull-ring combined cover and infusion container
The double-pull ring combination cap design independently controls the liquid and gas discharge processes. Combined with the sealing membrane to block rubber particles, it solves the problem of rubber particle contamination in the existing technology and ensures the continuity and safety of infusion.
Patent Information
- Application Number
- CN202422286673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During the needle insertion process of the existing infusion bottle, rubber particles dropped from the rubber stopper contaminate the infusion bottle, causing blockage of the liquid outlet or the air outlet, affecting the continuity of the infusion and human health.
It adopts a double-pull ring combination cover design, with independent air outlet and liquid outlet provided in the inner and outer covers respectively. The rubber pad is selectively exposed through the pull ring, and the sealing film is combined to prevent rubber particles from entering, ensuring that the liquid and air outlet processes are independent and do not affect each other.
Prevent rubber particles from entering the infusion container, maintain the continuous outflow of infusion, avoid blockage and human contamination, and improve the safety and reliability of the infusion process.
Smart Images

Figure CN223392677U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical devices, and more specifically, relates to a double-pull ring combined cover. The utility model also relates to an infusion container. Background Art
[0002] Infusion, or large-volume injection, refers to large-dose injections administered intravenously, typically exceeding 100 ml at a time. It is a subset of injectable medications and is typically packaged in glass or plastic infusion bottles or bags without antibacterial agents. During use, the drip rate is adjusted via an infusion pump, ensuring a continuous and stable infusion of the drug.
[0003] Infusion bottles (or infusion bags) serve as the main container for injections. During use, medical staff need to use a needle to puncture the bottle mouth of the infusion bottle so that the injection in the infusion bottle can enter the infusion line. However, during use, the existing infusion bottles need to first open the anti-fouling cover on the existing bottle cap, and then the needle can pierce the rubber stopper on the bottle cap and then penetrate into the infusion bottle. However, in the process of the needle passing through the existing rubber stopper, rubber particles will fall off the rubber stopper and push the rubber particles into the infusion bottle, thereby contaminating the infusion bottle. This not only easily blocks the liquid outlet of the infusion bottle, but also has adverse effects on human health, and urgently needs improvement. Utility Model Content
[0004] The utility model aims to provide a double-pull ring combined cover to solve the technical problem that during the needle insertion process of the existing infusion bottle, rubber particles dropped from the rubber stopper contaminate the infusion bottle.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a double-pull ring combination cover, comprising:
[0006] An inner cover, wherein a first air outlet and a first liquid outlet are formed on a top of the inner cover, and the first air outlet and the first liquid outlet are both encapsulated with a sealing film;
[0007] an outer cover, the outer cover being coaxially sleeved on the outer circumference of the inner cover, and the top of the inner cover being provided with a second air outlet and a second liquid outlet, with the axis of the inner cover being a first axis, the first air outlet and the second air outlet being correspondingly arranged along the first axis, and the first liquid outlet and the second liquid outlet being correspondingly arranged along the first axis;
[0008] The second gas outlet is enclosed with a first sealing plate, and the second liquid outlet is enclosed with a second sealing plate. The edges of the first sealing plate and the second sealing plate are both formed with easy-tear recesses. A first rubber pad is provided between the first sealing plate and the sealing film, and a second rubber pad is provided between the second sealing plate and the sealing film.
[0009] a first pull ring, disposed above the outer cover and connected to the first sealing plate;
[0010] The second pull ring is provided above the outer cover and connected to the second sealing plate. In a possible implementation, the axial directions of the first pull ring and the second pull ring are both parallel to the first axis.
[0011] In a possible implementation, the tearable recess is located on the lower surfaces of the first sealing plate and the second sealing plate.
[0012] In one possible implementation, a side of the first pull ring close to the first axis is connected to a side of the first sealing plate close to the first axis, and the other side of the first pull ring extends away from the first axis; a side of the second pull ring close to the first axis is connected to a side of the second sealing plate close to the first axis, and the other side of the second pull ring extends away from the first axis, and the extension direction of the first pull ring is opposite to the extension direction of the second pull ring.
[0013] In one possible implementation, the first sealing plate is provided with a first curved surface protrusion on the side facing outward from the cover that protrudes away from the outer cover, a smooth transition curve is formed between the first curved surface protrusion and the edge of the first sealing plate, the first pull ring is connected to the first curved surface protrusion, and the second sealing plate is provided with a second curved surface protrusion on the side facing outward from the cover that protrudes in the direction of the outer cover, a smooth transition curve is formed between the second curved surface protrusion and the edge of the first sealing plate, and the second pull ring is connected to the second curved surface protrusion.
[0014] In one possible implementation, the first liquid outlet is connected to the first cylinder, the first air outlet is connected to the second cylinder, the second liquid outlet is connected to the third cylinder, and the second air outlet is connected to the fourth cylinder. The first cylinder and the second cylinder extend toward the outside of the inner cover, and the third cylinder and the fourth cylinder extend toward the outside of the outer cover. The third cylinder is coaxially sleeved on the outer periphery of the first cylinder, and the fourth cylinder is coaxially sleeved on the outer periphery of the second cylinder. The outer port of the first cylinder and the inner port of the second cylinder are both sealed with the sealing membrane, the first sealing plate is sealed connected to the outer port of the third cylinder, and the second sealing plate is sealed connected to the outer port of the fourth cylinder.
[0015] In one possible implementation, the outer circumference of the bottom of the inner cover is integrally connected with a coaxial snap-fitting protrusion, the inner wall of the bottom of the inner cover is integrally connected with a coaxial first snap-fitting recess, the inner wall of the bottom of the outer cover is integrally connected with a coaxial second snap-fitting recess, the snap-fitting protrusion is snap-fitted to the second snap-fitting recess, and the snap-fitting protrusion is sealingly abutted against the inner wall of the second snap-fitting recess, and the first snap-fitting recess can be coaxially connected to the opening of the infusion container.
[0016] In a possible implementation, the thickness direction of the first rubber pad is parallel to the first axis, and the second rubber pad is sealed and filled in the inner wall of the third cylinder.
[0017] In a possible implementation, a coaxial reinforcement hoop is integrally connected to the outer wall of the bottom of the outer cover.
[0018] Compared with the prior art, the double-pull ring combination cover provided by the present invention has the following beneficial effects:
[0019] Before the needle punctures the first rubber pad or the second rubber pad, the utility model can selectively leak out the first rubber pad or the second rubber pad by pulling the first pull ring or the second pull ring, so that the puncture processes of the air outlet and the liquid outlet can remain relatively independent and do not affect each other, which is beneficial to preventing the double-pull ring combination cover from being contaminated by the external environment during use; not only that, the utility model can also block the rubber particles fallen off the rubber pad through the sealing film provided on the inner cover to prevent the rubber particles from falling into the infusion container, thereby solving the technical problem of the existing infusion container that rubber particles easily enter the infusion bottle during use and cause blockage of the liquid outlet or the air outlet of the infusion bottle, which is beneficial to maintaining the continuous outflow of liquid in the infusion bottle or infusion bag, and can prevent rubber particles from entering the human blood vessels through the infusion line.
[0020] Another object of the present invention is to provide an infusion container, comprising the double-pull ring combined cover mentioned above.
[0021] Compared with the prior art, the infusion container of the present invention has all the advantages of the above-mentioned double-pull ring combination cover, which will not be described here. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure of the double-pull ring combination cover provided by the utility model;
[0024] Figure 2 A schematic diagram of the overall structure of the double-pull ring combination cover provided by the utility model from another perspective;
[0025] Figure 3 It is a cross-sectional schematic diagram of the double-pull ring combination cover of the present utility model.
[0026] In the picture:
[0027] 1. Inner cover; 11. First liquid outlet; 111. First cylinder; 12. First air outlet; 121. Second cylinder; 13. Snap-fit protrusion; 14. First snap-fit recess; 15. Sealing membrane;
[0028] 2. Outer cover; 21. Second liquid outlet; 211. Third cylinder; 22. Second air outlet; 221. Fourth cylinder; 23. First sealing plate; 24. Second sealing plate; 25. Second clamping recess; 26. Reinforcement hoop;
[0029] 3. First pull ring;
[0030] 4. Second pull ring;
[0031] 5. First rubber pad;
[0032] 6. Second rubber pad. DETAILED DESCRIPTION
[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.
[0034] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", and "back" appear to indicate orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.
[0035] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a removable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0037] Please also refer to Figures 1 to 3 The double-pull ring combination cover provided by the present invention is now described. The double-pull ring combination cover comprises an inner cover 1, an outer cover 2, a first pull ring 3 and a second pull ring 4, wherein the top of the inner cover 1 is provided with a first air outlet 12 and a first liquid outlet 11, and the first air outlet 12 and the first liquid outlet 11 are both encapsulated with a sealing film 15; the outer cover 2 is coaxially sleeved on the outer periphery of the inner cover 1, and the top of the inner cover 1 is provided with a second air outlet 22 and a second liquid outlet 21, with the axis of the inner cover 1 as the first axis, the first air outlet 12 and the second air outlet 22 are arranged correspondingly along the first axis, and the first liquid outlet 11 and the second liquid outlet 21 are respectively encapsulated with a sealing film 15; The liquid outlet 21 is arranged correspondingly along the first axis; the second air outlet 22 is encapsulated with a first sealing plate 23, and the second liquid outlet 21 is encapsulated with a second sealing plate 24. The edges of the first sealing plate 23 and the edges of the second sealing plate 24 are both formed with easy-to-tear recesses, and a first rubber pad 5 is provided between the first sealing plate 23 and the sealing film 15, and a second rubber pad 6 is provided between the second sealing plate 24 and the sealing film 15; the first pull ring 3 is provided above the outer cover 2 and connected to the first sealing plate 23; the second pull ring 4 is provided above the outer cover 2 and connected to the second sealing plate 24.
[0038] Compared with the prior art, in the specific use process of this embodiment, before the needle punctures the first rubber pad 5 or the second rubber pad 6, the utility model can pull the first pull ring 3 or the second pull ring 4 to leak out the first rubber pad 5 or the second rubber pad 6 as selected, so that the puncture process of the air outlet and the liquid outlet can remain relatively independent and do not affect each other, which is beneficial to prevent the double-pull ring combination cover from being contaminated by the external environment during use; not only that, the utility model can also block the rubber particles shed by the rubber pad through the sealing film 15 provided on the inner cover 1 to prevent the rubber particles from falling into the infusion container, thereby solving the technical problem of the existing infusion container that rubber particles easily enter the infusion bottle during use and cause blockage of the liquid outlet or the air outlet of the infusion bottle, which is beneficial to maintain the continuous outflow of liquid in the infusion bottle or infusion bag, and can prevent rubber particles from entering the human blood vessels through the infusion line.
[0039] Based on the above embodiments, a feasible implementation method is proposed, in which the axial directions of the first pull ring 3 and the second pull ring 4 are parallel to the first axis, so that in the process of pulling the first pull ring 3 and the second pull ring 4 along the first axis, the two pull rings and the pull rings can tear off the two sealing plates through the easy-tear recesses, thereby making the force applied to the two pull rings during the pulling process more reasonable.
[0040] Furthermore, another embodiment of the present invention is proposed. Specifically, the easy-tear recess is located on the lower surface of the first sealing plate 23 and the second sealing plate 24. In this way, when the two sealing plates move away from the outer cover 2 along the first axis, the easy-tear recess can be used as a notch to tear the first sealing plate 23 and the second sealing plate 24 apart, making the opening process of the two sealing plates smoother.
[0041] Based on the above embodiment, a more effective implementation method is proposed. The side of the first pull ring 3 near the first axis is connected to the side of the first sealing plate 23 near the first axis, and the other side of the first pull ring 3 extends away from the first axis. The side of the second pull ring 4 near the first axis is connected to the side of the second sealing plate 24 near the first axis, and the other side of the second pull ring 4 extends away from the first axis. The extension direction of the first pull ring 3 is opposite to the extension direction of the second pull ring 4. When it is necessary to open the first sealing plate 23 or the second sealing plate 24, it is sufficient to pull the first pull ring 3 or the second pull ring 4 along the first axis away from the combination cover. The entire operation process is simple, controllable, and easy to operate. Moreover, when pulling one of the pull rings alone, the other pull ring will not be pulled, making the structural arrangement of the pull rings on the combination cover more reasonable.
[0042] A feasible implementation method is proposed, the side of the first sealing plate 23 facing the outside of the cover is provided with a first curved surface protrusion protruding away from the outer cover 2, a smooth transition curve is formed between the first curved surface protrusion and the edge of the first sealing plate 23, the first pull ring 3 is connected to the first curved surface protrusion, and the side of the second sealing plate 24 facing the outside of the cover is provided with a second curved surface protrusion protruding in the direction of the outer cover 2, a smooth transition curve is formed between the second curved surface protrusion and the edge of the first sealing plate 23, the second pull ring 4 is connected to the second curved surface protrusion. In this embodiment, the first curved surface protrusion can enhance the connection strength between the first sealing plate 23 and the first pull ring 3, and can provide supporting force during the pulling of the first pull ring 3, so that the tensile stress on the first sealing plate 23 is gathered towards the easy-to-tear recess, thereby facilitating the tearing off of the first sealing plate 23. As for the second curved surface protrusion, its beneficial effects can refer to the first curved surface protrusion, and will not be repeated here.
[0043] Based on the above embodiments, a feasible implementation method is proposed. Specifically, the first liquid outlet 11 is connected to the first cylinder 111, the first air outlet 12 is connected to the second cylinder 121, the second liquid outlet 21 is connected to the third cylinder 211, and the second air outlet 22 is connected to the fourth cylinder 221. The first cylinder 111 and the second cylinder 121 extend toward the outside of the inner cover 1, and the third cylinder 211 and the fourth cylinder 221 extend toward the outside of the outer cover 2. The third cylinder 211 is coaxially sleeved on the outer periphery of the first cylinder 111, and the fourth cylinder 221 is coaxially sleeved on the outer periphery of the second cylinder 121. The outer port of the first cylinder 111 and the inner port of the second cylinder 121 are both sealed with a sealing membrane 15. The first sealing plate 23 is sealed connected to the outer port of the third cylinder 211, and the second sealing plate 24 is sealed connected to the outer port of the fourth cylinder 221. Compared with the prior art, this embodiment can position the assembly of the outer cover 2 and the inner cover 1 by plugging and adapting the first cylinder 111 and the third cylinder 211, and the second cylinder 121 and the fourth cylinder 221, so as to prevent deviation during the assembly of the inner cover 1 and the outer cover 2. In addition, preferably, the inner diameter of the first liquid outlet 11 is larger than the inner diameter of the first gas outlet 12, the inner diameter of the second liquid outlet 21 is larger than the inner diameter of the second gas outlet 22, the inner diameter of the first cylinder 111 is the same as the inner diameter of the first liquid outlet 11, the inner diameter of the third cylinder 211 is the same as the inner diameter of the second liquid outlet 21, and the outer diameter of the third cylinder 211 is not larger than the inner diameter of the first cylinder 111. Similarly, the inner diameter of the second cylinder 121 is the same as the inner diameter of the first gas outlet 12, the inner diameter of the fourth cylinder 221 is the same as the inner diameter of the second gas outlet 22, and the outer diameter of the fourth cylinder 221 is not larger than the inner diameter of the second cylinder 121, so that the plug-in adaptation of each cylinder is more reasonable, and to ensure that there is no positioning error when the inner cover 1 and the outer cover 2 are plugged in. Preferably, the size of the first sealing plate 23 is adapted to the inner diameter of the first cylinder 111, the size of the second sealing plate 24 is adapted to the inner diameter of the second cylinder 121, the size of the first pull ring 3 is adapted to the size of the first sealing plate 23, and the size of the second pull ring 4 is adapted to the size of the second sealing plate 24, so that the overall structure of the double pull ring combination cover in this embodiment is more reasonable.
[0044] In order to prevent the outer cover 2 from falling off the inner cover 1, a feasible implementation method is proposed. The outer circumference of the bottom of the inner cover 1 is integrally connected with a coaxial snap-fitting protrusion 13, the inner wall of the bottom of the inner cover 1 is integrally connected with a coaxial first snap-fitting recess 14, and the inner wall of the bottom of the outer cover 2 is integrally connected with a coaxial second snap-fitting recess 25. The snap-fitting protrusion 13 is snap-fitted and adapted to the second snap-fitting recess 25, and the snap-fitting protrusion 13 is sealed against the inner wall of the second snap-fitting recess 25. The first snap-fitting recess 14 can be coaxially connected to the opening of the infusion container. In this way, the first protrusion can be snapped into the second snap-fitting recess 25 while forming a sealed connection between the two to prevent external bacteria from invading between the inner cover 1 and the outer cover 2, which is beneficial to prevent the infusion bag from being contaminated through a double protective barrier.
[0045] Furthermore, it should be noted that, in this embodiment, the provision of the first card recess facilitates ultrasonic welding between the bottom of the inner cover 1 and the opening of the infusion container, thereby enabling the combined cover to be fixed to the infusion container, making the connection between the infusion container and the combined cover more secure.
[0046] Based on the above embodiments, a feasible implementation method is proposed. During the specific implementation of this embodiment, the first rubber pad 5 is located between the upper end of the second cylinder 121 and the second sealing plate 24. The thickness direction of the first rubber pad 5 is parallel to the first axis, and the second rubber pad 6 is sealed and filled in the inner wall of the third cylinder 211. With such an arrangement, this embodiment can be positioned by the second cylinder 121 and the second sealing plate 24, and can form a seal for the third cylinder 211 by the second rubber pad 6 to prevent the inner cover 1 from leaking liquid and other problems.
[0047] Preferably, in order to enhance the structural strength of the outer cover 2, a coaxial reinforcing hoop 26 is integrally connected to the outer wall of the bottom of the outer cover 2. In this way, this embodiment can enhance the connection strength between the combined cover and the infusion bottle or infusion bag in the utility model through the structurally reinforced outer cover 2, thereby preventing the combined cover from being deformed and damaged due to extrusion or collision.
[0048] Based on the same inventive concept, the present invention also provides an infusion container, which includes the double-pull ring combination cover mentioned above.
[0049] Compared with the prior art, the infusion container of the present invention has all the advantages of the above-mentioned double-pull ring combination cover, which will not be described here.
[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A double pull ring combination cover, characterized in that: include: An inner cover (1), wherein a first air outlet (12) and a first liquid outlet (11) are provided on a top of the inner cover (1), and the first air outlet (12) and the first liquid outlet (11) are both encapsulated with a sealing film (15); An outer cover (2), the outer cover (2) being coaxially sleeved on the outer periphery of the inner cover (1), and the top of the inner cover (1) being provided with a second air outlet (22) and a second liquid outlet (21), with the axis of the inner cover (1) being a first axis, the first air outlet (12) and the second air outlet (22) being arranged correspondingly along the first axis, and the first liquid outlet (11) and the second liquid outlet (21) being arranged correspondingly along the first axis; The second air outlet (22) is enclosed with a first sealing plate (23), and the second liquid outlet (21) is enclosed with a second sealing plate (24); edges of the first sealing plate (23) and the second sealing plate (24) are both formed with tearable recesses; a first rubber pad (5) is provided between the first sealing plate (23) and the sealing film (15); and a second rubber pad (6) is provided between the second sealing plate (24) and the sealing film (15); a first pull ring (3) disposed above the outer cover (2) and connected to the first sealing plate (23); A second pull ring (4) is provided above the outer cover (2) and is connected to the second sealing plate (24).
2. The double-ring pull-tab assembly cover according to claim 1, wherein: The axial directions of the first pull ring (3) and the second pull ring (4) are both parallel to the first axis.
3. The double-ring pull-tab assembly cover according to claim 2, wherein: The easy-to-tear recess is located on the lower surfaces of the first sealing plate (23) and the second sealing plate (24).
4. The double-ring pull-tab assembly cover according to claim 3, wherein: The side of the first pull ring (3) close to the first axis is connected to the side of the first sealing plate (23) close to the first axis, and the other side of the first pull ring (3) extends in a direction away from the first axis. The side of the second pull ring (4) close to the first axis is connected to the side of the second sealing plate (24) close to the first axis, and the other side of the second pull ring (4) extends in a direction away from the first axis, and the extension direction of the first pull ring (3) is opposite to the extension direction of the second pull ring (4).
5. The double-ring pull assembly cover according to claim 4, wherein: The first sealing plate (23) is provided with a first curved surface protrusion on the side facing the outside of the cover and protruding in a direction away from the outer cover (2), and a smooth transition curve is formed between the first curved surface protrusion and the edge of the first sealing plate (23), and the first pull ring (3) is connected to the first curved surface protrusion. The second sealing plate (24) is provided with a second curved surface protrusion on the side facing the outside of the cover and protruding in a direction away from the outer cover (2), and a smooth transition curve is formed between the second curved surface protrusion and the edge of the first sealing plate (23), and the second pull ring (4) is connected to the second curved surface protrusion.
6. The double-ring pull assembly cover according to claim 1, wherein: The first liquid outlet (11) is connected to the first cylinder (111), the first air outlet (12) is connected to the second cylinder (121), the second liquid outlet (21) is connected to the third cylinder (211), and the second air outlet (22) is connected to the fourth cylinder (221). The first cylinder (111) and the second cylinder (121) extend toward the outside of the inner cover (1), and the third cylinder (211) and the fourth cylinder (221) extend toward the outside of the outer cover (2). The third cylinder (211) is coaxially sleeved on the outer periphery of the first cylinder (111), and the fourth cylinder (221) is coaxially sleeved on the outer periphery of the second cylinder (121). The outer port of the first cylinder (111) and the inner port of the second cylinder (121) are both sealedly connected to the sealing film (15). The first sealing plate (23) is sealedly connected to the outer port of the third cylinder (211), and the second sealing plate (24) is sealedly connected to the outer port of the fourth cylinder (221).
7. The double-ring pull assembly cover according to claim 1, wherein: The outer periphery of the bottom of the inner cover (1) is integrally connected with a coaxial snap-fitting protrusion (13), the inner wall of the bottom of the inner cover (1) is integrally connected with a coaxial first snap-fitting recess (14), the inner wall of the bottom of the outer cover (2) is integrally connected with a coaxial second snap-fitting recess (25), the snap-fitting protrusion (13) is snap-fitted and adapted to the second snap-fitting recess (25), and the snap-fitting protrusion (13) is sealed against the inner wall of the second snap-fitting recess (25), and the first snap-fitting recess (14) can be coaxially connected to the opening of the infusion container.
8. The double-ring pull assembly cover according to claim 6, wherein: The thickness direction of the first rubber pad (5) is parallel to the first axis, and the second rubber pad (6) is sealed and filled in the inner wall of the third cylinder (211).
9. The double-ring pull assembly cover according to claim 7, wherein: The outer wall of the bottom of the outer cover (2) is integrally connected with a coaxial reinforcement hoop (26).
10. An infusion container, characterized in that: The invention comprises the double-pull ring combination cover according to any one of claims 1 to 9.