A breath bag which is easily torn
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIABO LIFE SCI (SHANGHAI) CO LTD
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-10
Smart Images

Figure CN122354907A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of packaging technology, and more particularly to an easy-tear breathable bag. Background Technology
[0002] In the packaging industry, especially for items that need to be kept in a dry and sterile environment, breathing bags are widely used.
[0003] Traditional breathing bags have the following technical drawbacks: First, the opening method is relatively simple, usually involving directly tearing open the packaging film. This method is not only laborious but also makes it difficult to precisely control the tearing position, easily leading to damage to the items inside. This is especially problematic for items with high requirements for packaging integrity, such as medical supplies and electronic components. Second, traditional breathing bags are not flexible enough in terms of item storage and retrieval. The inside of a breathing bag is generally a single, disorganized space, making it time-consuming to find specific items. Furthermore, once the breathing bag is opened, the entire package is exposed to the external environment, making it susceptible to contamination and unable to meet the storage requirements of items with stringent environmental conditions. Summary of the Invention
[0004] The purpose of this invention is to provide an easy-tear breathing bag to solve the above-mentioned technical problems.
[0005] The technical solution adopted in this invention is as follows: An easy-tear breathing bag includes a bag body, a self-sealing strip mechanism, a sealing film, and an elastic opening mechanism. The bag body includes a first bag body and a second bag body. The adjacent periphery of the first bag body and the second bag body is heat-sealed to form a storage cavity. Several independent cavities are formed inside the storage cavity. An opening for taking out an item is provided on the first bag body directly opposite the cavity. The elastic opening mechanism is provided in the middle of the first bag body and the second bag body. Several openings for taking out an item are located around the elastic opening mechanism. The self-sealing strip mechanism is provided around each opening for taking out an item. The sealing film is connected to the self-sealing strip mechanism, and the self-sealing strip mechanism is connected to the elastic opening mechanism.
[0006] Preferably, the first bag body is provided with a multi-functional integrated area, and the multi-functional integrated area is provided with a writable information label area.
[0007] Preferably, the packaging film is heat-sealed to the first bag body to form a heat-sealed area, and an easy-tear line is laser-etched on the packaging film within the heat-sealed area. A guide groove is provided on the packaging film opposite the easy-tear line.
[0008] Preferably, the elastic opening mechanism includes a base, a bottom cover, a sealing cover, and an ejection mechanism. The ejection mechanism is disposed inside the base. A first mounting hole is provided in the middle of the base. The ejection mechanism extends out of the first mounting hole. The bottom cover is disposed at the lower end of the base. A plurality of sealing areas are provided at the upper end of the base. The plurality of sealing areas are located around the first mounting hole. A sealing cover is disposed in each sealing area. The ejection mechanism is used to lift and position the sealing cover. The first bag body and the second bag body are respectively connected to the outer wall of the base.
[0009] As a further preferred embodiment, the self-sealing strip mechanism includes a first self-sealing strip and a second self-sealing strip. The first self-sealing strip is connected to the first bag body and located around the opening for taking out the contents. The second self-sealing strip is connected to the sealing film. The first self-sealing strip has a groove, and the second self-sealing strip has a protrusion that cooperates with the groove. The first self-sealing strip is connected to the outer peripheral wall of the base, and the second self-sealing strip is connected to the sealing cap.
[0010] As a further preferred embodiment, a sealing strip is also included, with one sealing strip provided in each of the sealing areas, and a sealing groove that mates with the sealing strip is provided at the lower end of the sealing cover.
[0011] As a further preferred embodiment, a sealing gasket is also included, wherein the sealing area is provided with the sealing gasket, and the sealing gasket is located on the periphery of the sealing strip.
[0012] As a further preferred embodiment, the ejection mechanism includes a button, a telescopic rod, a spring, a connecting rod, and a positioning post. The sealing area has a second mounting hole. The upper end of the positioning post passes through the second mounting hole and extends into the sealing area. The sealing cover has a positioning hole that mates with the positioning post. The lower end of the positioning post is located inside the base. The spring is sleeved around the telescopic rod. The telescopic rod is disposed in the first mounting hole. The button is disposed at the upper end of the telescopic rod. One end of the connecting rod extends into the first mounting hole, and the other end of the connecting rod is hinged to the side wall of the first mounting hole and the side wall of the positioning post.
[0013] As a further preferred embodiment, the first mounting hole has a through hole on its side wall, the connecting rod passes through the through hole, one end of the through hole is connected to the first mounting hole, the opening length of one end of the through hole is smaller than the opening length of the other end of the through hole, and a connecting block is provided at one end of the connecting rod.
[0014] As a further preferred embodiment, a tension spring is also included, one end of which is connected to the lower end of the positioning post, and the other end of which is connected to a tension spring hook seat on the bottom cover.
[0015] The above technical solution has the following advantages or beneficial effects: (1) In this invention, several independent cavities are formed in the storage cavity and the first bag body is opened with a corresponding retrieval port. Items can be stored in categories, making it more convenient and time-saving to retrieve specific items.
[0016] (2) In this invention, the elastic opening mechanism is easy to operate and can quickly open the sealing cover, making it convenient for users to tear open the packaging film and improving convenience.
[0017] (3) In this invention, the easy-tear line and guide groove design on the packaging film make the packaging film tearing operation easier and more precise, avoids excessive damage to the packaging caused by random tearing, and improves the user experience. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the easy-tear breathing bag in this invention; Figure 2 This is a schematic diagram of the structure of the self-sealing strip mechanism and the elastic opening mechanism in this invention. Figure 3 This is a schematic diagram of the self-sealing strip mechanism in this invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a top view of the elastic opening mechanism in this invention; Figure 6 yes Figure 5 BA-direction sectional view; Figure 7 yes Figure 6 Enlarged view at point C; Figure 8 This is an exploded schematic diagram of the elastic opening mechanism in this invention. Figure 1 ; Figure 9 This is an exploded schematic diagram of the elastic opening mechanism in this invention. Figure 2 ; Figure 10 This is a schematic diagram of the ejection mechanism in this invention; Figure 11 This is a schematic diagram of the connection between the connecting rod and the through hole in this invention; Figure 12 This is a schematic diagram of the tension spring hook seat in this invention.
[0019] In the diagram: 1. Bag body; 101. First bag body; 2. Self-sealing mechanism; 201. First self-sealing strip; 202. Second self-sealing strip; 203. Protrusion; 3. Sealing film; 4. Elastic opening mechanism; 401. Base; 402. Bottom cover; 403. Sealing cover; 404. Ejection mechanism; 405. First mounting hole; 406. Sealing area; 407. Sealing strip; 408. Sealing groove; 409. Sealing gasket; 410. Button; 41 1. Telescopic rod; 412. Spring; 413. Connecting rod; 414. Positioning post; 415. Second mounting hole; 416. Positioning hole; 417. Through hole; 418. Connecting block; 419. Tension spring; 420. Tension spring hook seat; 421. Sleeve; 422. Movable rod; 423. Limiting ring; 424. Connecting seat; 425. Rotating shaft; 5. Multifunctional integrated area; 6. Writable information label area; 7. Sterilization indicator area; 8. Easy-tear line. Detailed Implementation
[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] In the description of this invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Please see Figures 1 to 12The diagram illustrates a preferred embodiment of an easy-tear breathing bag, characterized by comprising a bag body 1, a self-sealing mechanism 2, a sealing film 3, and an elastic opening mechanism 4. The bag body 1 includes a first bag body 101 and a second bag body. The adjacent perimeters of the first bag body 101 and the second bag body are heat-sealed to form a storage cavity, within which several independent cavities are formed. An opening for retrieving items is provided on the first bag body 101 directly opposite the cavity. An elastic opening mechanism 4 is located in the middle of the first bag body 101 and the second bag body, with several openings located around the periphery of the elastic opening mechanism 4. A self-sealing mechanism 2 is provided around each opening. The sealing film 3 is connected to the self-sealing mechanism 2, and the self-sealing mechanism 2 is connected to the elastic opening mechanism 4. In this embodiment, by providing four independent cavities within the bag body 1, items can be stored in categories, making it more convenient to retrieve specific items and saving search time. Furthermore, the openings on the first bag body 101 facilitate placing items in or retrieving them from the corresponding cavities, improving retrieval efficiency. The flexible opening mechanism 4 allows users to easily open the self-sealing strip mechanism 2. With the self-sealing strip mechanism 2 surrounding the retrieval opening and working in conjunction with the sealing film 3, the retrieval opening can be resealed after items are placed in or removed, effectively preventing external dust and moisture from entering and maintaining the proper storage environment for the items inside the packaging.
[0024] The breathing bag in this embodiment can be used for packaging sterile medical items or everyday items.
[0025] In this embodiment, the first bag 101, the second bag, and the sealing film 3 each comprise four layers, from the outside in: a breathable barrier layer, an easy-tear sealing layer, a transparent observation layer, and an antibacterial contact layer. These layers are composited together. Specifically, the breathable barrier layer is made of non-woven fabric, the easy-tear sealing layer is a bio-based HDPE easy-tear film with added slip agent and silicone masterbatch, the transparent observation layer is a medical-grade cast CPP film, and the antibacterial contact layer is a nano-silver ion coated CPP film.
[0026] Furthermore, as a preferred embodiment, the first bag body 101 is provided with a multi-functional integrated area 5, and a writable information label area 6 is provided within the multi-functional integrated area 5. In other embodiments, a sterilization indicator area 7 can also be provided within the multi-functional integrated area 5. The sterilization indicator area 7 can intuitively display whether the items inside the bag have been effectively sterilized, suitable for medical supplies, food, and other items with strict sterilization requirements. Users do not need additional testing methods; they can quickly determine the sterilization status of the items by observing the color change or marking status of the sterilization indicator area 7, ensuring safe use. The writable information label area 6 allows users to directly record relevant information about the items on the packaging, such as name, specifications, and expiration date, facilitating item identification, management, and traceability, and improving the practicality and convenience of the packaging. The sterilization indicator area 7 is printed on the surface of the breathable barrier layer, and the writable information label area 6 is coated onto the surface of the breathable barrier layer. A layer of writable information label area 6 can be directly coated onto the surface of the breathable barrier layer.
[0027] In this embodiment, the sterilization indicator area 7 is printed with dual indicator inks for EO ethylene oxide and high-temperature steam; the writable information label area 6 uses a matte water-based polyurethane writable coating.
[0028] Furthermore, as a preferred embodiment, the packaging film 3 is heat-sealed to the first bag body 101 around its perimeter to form a heat-sealed area. An easy-tear line 8 is laser-etched on the packaging film 3 within the heat-sealed area, and a guide groove is provided on the packaging film 3 directly opposite the easy-tear line 8. The guide groove is a common groove with a rectangular cross-section. In this embodiment, the easy-tear line 8 provides the user with precise guidance on the tearing position, making tearing the packaging easier and more controllable, avoiding excessive damage to the packaging or the item itself due to random tearing. The guide groove further facilitates the user tearing along the easy-tear line 8, improving the convenience and success rate of the tearing operation. The user can easily tear the packaging film 3 along the easy-tear line 8 with the help of the guide groove without any deviation in the tearing direction.
[0029] In this embodiment, the easy-tear line 8 is formed by laser etching. The laser energy, spot size, and scanning speed can be optimized to ensure that the depth of the easy-tear line 8 is moderate, which ensures that it can be easily torn when needed without affecting the overall strength of the encapsulation film 3. The guide groove can be formed by molding or laser engraving.
[0030] Furthermore, as a preferred embodiment, the elastic opening mechanism 4 includes a base 401, a bottom cover 402, a sealing cover 403, and an ejection mechanism 404. The ejection mechanism 404 is disposed within the base 401. A first mounting hole 405 is formed in the middle of the base 401, and the ejection mechanism 404 extends out of the first mounting hole 405. The bottom cover 402 is disposed at the lower end of the base 401, and a plurality of sealing areas 406 are formed at the upper end of the base 401. The sealing areas 406 are located around the first mounting hole 405, and a sealing cover 403 is disposed within each sealing area 406. The ejection mechanism 404 is used to lift and position the sealing cover 403. The first bag body 101 and the second bag body are respectively connected to the outer wall of the base 401. In this embodiment, the base 401 is hollow inside, as can be seen in [reference needed]. Figure 6 As shown, the bottom cover 402 and the base 401 can be connected by screws, which facilitates the removal of the bottom cover 402 and the opening of the interior of the base 401 for easy installation of the internal structure. The ejection mechanism can lift the sealing cover 403, making it easy for the user to grasp the sealing cover 403. By pulling the sealing cover 403, the protrusion 203 in the self-sealing mechanism 2 can be separated from the groove, facilitating the opening for accessing the contents.
[0031] Furthermore, as a preferred embodiment, the self-sealing mechanism 2 includes a first self-sealing strip 201 and a second self-sealing strip 202. The first self-sealing strip 201 is connected to the first bag body 101 and located around the opening. The second self-sealing strip 202 is connected to the sealing film 3. The first self-sealing strip 201 has a groove, and the second self-sealing strip 202 has a protrusion 203 that mates with the groove. The first self-sealing strip 201 is connected to the outer peripheral wall of the base 401, and the second self-sealing strip 202 is connected to the sealing cap 403. The first self-sealing strip 201 and the first bag body 101 are injection molded together, and the second self-sealing strip 202 and the sealing film 3 are injection molded together. The protrusion 203 and the second self-sealing strip 202 are integrally formed. Through the arrangement of the first self-sealing strip 201, the second self-sealing strip 202, and the sealing film 3, the opening can be sealed. When the user moves the sealing cap 403, it can move the second self-sealing strip 202, causing the protrusion 203 on the second self-sealing strip 202 to separate from the groove on the first self-sealing strip 201, thereby opening the retrieval port.
[0032] In other embodiments, the first self-sealing strip 201 and the first bag body 101, as well as the second self-sealing strip 202 and the sealing film 3, can also be connected by heat pressing.
[0033] Furthermore, as a preferred embodiment, it also includes a sealing strip 407, with a sealing strip 407 respectively provided in each sealing area 406, and a sealing groove 408 that mates with the sealing strip 407 being formed at the lower end of the sealing cover 403. A sealing gasket 409 is provided in the sealing area 406, located around the sealing strip 407. Through the cooperation of the sealing strip 407 and the sealing groove 408, and the provision of the sealing gasket 409, a seal can be achieved between the sealing cover 403 and the sealing area 406.
[0034] When the sealing cap 403 is closed, the sealing strip 407 can be tightly embedded in the sealing groove 408 to form a sealing barrier, preventing air, moisture and other substances from entering the storage cavity from the connection between the sealing cap 403 and the sealing area 406, thus better protecting the items inside the bag.
[0035] Among them, see Figure 1 As shown, a corner of the sealing film 3 can be thermoformed with the sealing cap 403. Furthermore, this corner of the sealing film 3 is connected to the first bag body 101 via thermoforming, ensuring that the contents inside the cavity are not exposed when the sealing cap 403 is lifted. An easy-tear line is also provided at this location to facilitate tearing the sealing film 3.
[0036] In this embodiment, several independent cavities are provided inside the main body 1 of the bag. When you want to take out an item, you can open the corresponding retrieval port. Items in other cavities will not be exposed, which can prevent the items in the entire breathing belt from being exposed to the external environment.
[0037] Furthermore, as a preferred embodiment, the ejection mechanism 404 includes a button 410, a telescopic rod 411, a spring 412, a connecting rod 413, and a positioning post 414. The sealing area 406 has a second mounting hole 415. The upper end of the positioning post 414 passes through the second mounting hole 415 and extends into the sealing area 406. The sealing cover 403 has a positioning hole 416 that mates with the positioning post 414. The lower end of the positioning post 414 is located inside the base 401. The telescopic rod 411 is surrounded by a spring 412. The telescopic rod 411 is located inside the first mounting hole 405. The upper end of the telescopic rod 411 is provided with a button 410. One end of the connecting rod 413 extends into the first mounting hole 405, and the other end of the connecting rod 413 passes through the side wall of the first mounting hole 405 and is hinged to the side wall of the positioning post 414. In this embodiment, there is a gap of 0.5~1mm between the outer wall of the button 410 and the first mounting hole 405, which facilitates the up-and-down movement of the button 410 within the first mounting hole 405. The spring 412, which is sleeved on the telescopic rod 411, provides the elastic force required for ejection. When the button 410 is pressed, the spring 412 compresses and stores energy. After the button 410 is released, the spring 412 releases energy to push the telescopic rod 411 upward, causing the button 410 to protrude from the first mounting hole 405, thus facilitating the next press of the button 410. The connecting rod 413 and the positioning post 414 enable accurate positioning and stable ejection of the sealing cover 403. The positioning post 414 passes through the second mounting hole 415 of the sealing area 406 and extends into the positioning hole 416 of the sealing cover 403, ensuring that the sealing cover 403 does not shift during the ejection process, thus improving the accuracy and stability of ejection. One end of the connecting rod 413 extends into the first mounting hole 405, so that the button 410 can press down the connecting rod 413. Using the lever principle, the connecting rod 413 drives the positioning pin 414 to move upward, thereby pushing out the sealing cover 403.
[0038] See Figure 7 As shown, the telescopic rod 411 includes a sleeve 421 and a movable rod 422 movably disposed within the sleeve 421. The upper end of the movable rod 422 extends out of the sleeve 421 and connects to the button 410, while the lower end of the movable rod 422 is located within the sleeve 421. A limit ring 423 is provided at the lower end of the movable rod 422, and the outer wall of the limit ring 423 contacts the inner wall of the sleeve 421. A spring 412 is sleeved around the movable rod 422, and the lower end of the spring 412 contacts the upper end of the sleeve 421, while the upper end of the spring 412 contacts the lower end of the button 410. The spring 412 provides an upward thrust to the movable rod 422.
[0039] Furthermore, as a preferred embodiment, a through hole 417 is provided on the side wall of the first mounting hole 405, through which the connecting rod 413 passes. One end of the through hole 417 communicates with the first mounting hole 405. The opening length of one end of the through hole 417 is smaller than the opening length of the other end of the through hole 417. A connecting block 418 is provided at one end of the connecting rod 413. See also Figure 7 and Figure 11 As shown, the connecting block 418 and the connecting rod 413 are integrally connected or connected by screws. When the button 410 moves downward, it presses the connecting block 418, causing the connecting block 418 to push the connecting rod 413 to rotate. The structure of the through hole 417 is shown in [reference needed]. Figure 11 As shown, Figure 11 The state shown is the non-use state. When the connecting rod 413 rotates, the point where the connecting rod 413 contacts the bottom wall of the through hole 417 at one end of the opening rotates, thereby pushing the positioning pin 414 to move upward.
[0040] Furthermore, the other end of the connecting rod 413 is hinged to the positioning post 414. Specifically, this hinged connection can be achieved through the cooperation of the connecting seat 424 and the rotating shaft 425. For example, see [link to documentation]. Figure 10 As shown, the connecting seat 424 is fixedly connected to the side wall of the positioning post 414, and the other end of the connecting rod 413 extends into the connecting seat 424 and is rotatably connected to the connecting seat 424 through the rotating shaft 425.
[0041] Furthermore, as a preferred embodiment, a tension spring 419 is also included. One end of the tension spring 419 is connected to the lower end of the positioning post 414, and the other end of the tension spring 419 is connected to the tension spring hook seat 420 on the bottom cover 402. The tension spring 419 provides downward tension to the positioning post 414. In the non-use state, the tension spring 419 is in a compressed state, which can support the positioning post 414. When the sealing cover 403 is pressed, it facilitates the positioning post 414 to enter the positioning hole 416 on the sealing cover 403, thereby positioning the sealing cover 403. The upper end of the tension spring 419 is fixedly connected to the lower end of the positioning post 414, for example, by adhesive. The tension spring hook seat 420 is connected to the bottom cover 402 by screws.
[0042] In this embodiment, when an item is placed into the cavity through the retrieval port, pressing the second self-sealing strip 202 causes the protrusion 203 to enter the groove, and then the sealing cap 403 enters the sealing area 406. Pressing the sealing cap 403 causes the positioning post 414 to enter the positioning hole 416 on the sealing cap 403, and the sealing strip 407 enters the sealing groove 408, thus achieving a seal between the sealing cap 403 and the sealing area 406. Then, the packaging film 3 is connected to the first bag body 101 through a thermoforming process, and an easy-tear line is formed at the connection point through laser etching, thereby completing the seal of the retrieval port. Then, EO ethylene oxide is used as a sterilizing agent for sterilization and disinfection, utilizing the characteristic of the packaging bag that allows sterilizing agents to pass through but not bacterial agents to pass through, to sterilize the item. Items that do not require sterilization can be left unsterilized; the specific choice of whether or not sterilization is required depends on the usage needs.
[0043] When it is necessary to remove an item from the cavity, pressing button 410 causes it to overcome the resistance of spring 412 and move downwards, squeezing connecting block 418. Connecting block 418 then rotates connecting rod 413, which in turn moves positioning pin 414 upwards, thus lifting sealing cover 403 and causing it to bulge. The user then pinches sealing cover 403 and applies pulling force, causing the first self-sealing strip 201 and the second self-sealing strip 202 to separate. Simultaneously, the sealing film 3 breaks from the tear line, opening the corresponding retrieval port for easy removal of the item. For items that do not need to be removed, pressing the corresponding sealing cover 403 allows it to re-enter the sealing area 406.
[0044] In this embodiment, the number of cavities in the storage chamber is four, with a minimum of three and a maximum of six. This avoids wasting time when pressing the sealing cover 403 due to an excessive number of cavities. Moreover, with the design of this structure, it generally takes about 1 to 1.5 seconds to press a sealing cover 403 into place. It is also easy to operate, and no experienced personnel are required to quickly complete the installation of the sealing cover 403.
[0045] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.
Claims
1. An easy-tear breathing bag, characterized in that, The device includes a bag body, a self-sealing strip mechanism, a sealing film, and a flexible opening mechanism. The bag body includes a first bag body and a second bag body. The adjacent perimeters of the first bag body and the second bag body are heat-sealed to form a storage cavity. Several independent cavities are formed within the storage cavity. A retrieval port is provided on the first bag body directly opposite the cavity. The flexible opening mechanism is provided in the middle of the first bag body and the second bag body. Several retrieval ports are located around the flexible opening mechanism. The self-sealing strip mechanism is provided around each retrieval port. The sealing film is connected to the self-sealing strip mechanism, and the self-sealing strip mechanism is connected to the flexible opening mechanism.
2. The easy-tear breathing bag as described in claim 1, characterized in that, The first bag body is provided with a multi-functional integrated area, and the multi-functional integrated area is provided with a writable information label area.
3. The easy-tear breathing bag as described in claim 1, characterized in that, The packaging film is heat-sealed to the first bag body to form a heat-sealed area. The packaging film has an easy-tear line laser-etched in the heat-sealed area, and a guide groove is provided on the packaging film opposite the easy-tear line.
4. The easy-tear breathing bag as described in claim 1, characterized in that, The elastic opening mechanism includes a base, a bottom cover, a sealing cover, and an ejection mechanism. The ejection mechanism is disposed inside the base. A first mounting hole is provided in the middle of the base. The ejection mechanism extends out of the first mounting hole. The bottom cover is disposed at the lower end of the base. A plurality of sealing areas are provided at the upper end of the base. The plurality of sealing areas are located around the first mounting hole. A sealing cover is disposed in each sealing area. The ejection mechanism is used to lift and position the sealing cover. The first bag body and the second bag body are respectively connected to the outer wall of the base.
5. The easy-tear breathing bag as described in claim 4, characterized in that, The self-sealing mechanism includes a first self-sealing strip and a second self-sealing strip. The first self-sealing strip is connected to the first bag body and located around the opening. The second self-sealing strip is connected to the sealing film. The first self-sealing strip has a groove, and the second self-sealing strip has a protrusion that mates with the groove. The first self-sealing strip is connected to the outer peripheral wall of the base, and the second self-sealing strip is connected to the sealing cap.
6. The easy-tear breathing bag as described in claim 4, characterized in that, It also includes a sealing strip, with one sealing strip provided in each of the sealing areas, and a sealing groove that mates with the sealing strip is provided at the lower end of the sealing cover.
7. The easy-tear breathing bag as described in claim 6, characterized in that, It also includes a sealing gasket, which is disposed within the sealing area and located around the sealing strip.
8. The easy-tear breathing bag as described in claim 6, characterized in that, The ejection mechanism includes a button, a telescopic rod, a spring, a connecting rod, and a positioning post. The sealing area has a second mounting hole. The upper end of the positioning post passes through the second mounting hole and extends into the sealing area. The sealing cover has a positioning hole that mates with the positioning post. The lower end of the positioning post is located inside the base. The spring is sleeved around the telescopic rod. The telescopic rod is located in the first mounting hole. The button is located at the upper end of the telescopic rod. One end of the connecting rod extends into the first mounting hole. The other end of the connecting rod is hinged to the side wall of the first mounting hole and the side wall of the positioning post.
9. The easy-tear breathing bag as described in claim 8, characterized in that, It also includes a through hole on the side wall of the first mounting hole, through which the connecting rod passes. One end of the through hole is connected to the first mounting hole. The opening length of one end of the through hole is smaller than the opening length of the other end of the through hole. A connecting block is provided at one end of the connecting rod.
10. The easy-tear breathing bag as described in claim 8, characterized in that, It also includes a tension spring, one end of which is connected to the lower end of the positioning post, and the other end of which is connected to a tension spring hook seat on the bottom cover.