Bottle body structure for improving negative pressure balance

Abstract

The utility model relates to the technical field of articles for daily use, in particular to a bottle body structure for improving negative pressure balance, which comprises a bottle body and breathable soft rubber, a hollow soft rubber connecting part extends from one side of the breathable soft rubber towards the bottle body, the bottle body is provided with a soft rubber mounting port, and a waterproof breathable piece is arranged at the hollow position of the soft rubber connecting part. Therefore, external air can enter the liquid storage cavity of the bottle body for storing liquid through the waterproof breathable piece. The detachable breathable soft rubber is arranged at the bottom of the bottle body, negative pressure generated when a user sucks food can drive external air to enter the bottle from the hollow soft rubber connecting part through the waterproof breathable piece so as to balance the air pressure in the bottle, and the user can conveniently suck food and drink the food. Therefore, when a baby uses the nipple to suck, after the bottom of the bottle body is lifted, air entering from the breathable soft rubber can be prevented from penetrating through liquid, so that external air is prevented from generating bubbles in the liquid, meanwhile, the waterproof breathable piece has the function of preventing liquid circulation, and the effect of avoiding leakage is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a bottle structure for improving negative pressure balance. Background Art

[0002] The bottle structure is a container designed for storing and drinking beverages to meet people's drinking needs. The bottle structure is usually used in water bottles, milk bottles, beverage bottles and other bottles or cups. Users need to pour drinking water, milk, beverages and other liquids into the bottle, or put powder into the bottle and rinse it with water to form a mixed liquid, which can be drunk through the bottle mouth with the mouth.

[0003] In daily use, the bottle structure has good sealing properties, and thermal expansion and contraction will cause negative pressure inside the bottle, making the bottle cap difficult to open. In addition, when used with accessories such as straws and pacifiers, as the liquid in the bottle decreases, negative pressure will also appear in the bottle, making it inconvenient for users to drink. This disadvantage is particularly obvious when using a pacifier to suck. Especially when used by babies, bubbles can easily pass through the milk and the baby can easily inhale the bubbles and cause bloating. Bubbles can also oxidize the milk when passing through the milk, causing nutrient loss, which is not conducive to baby use.

[0004] There are some technical solutions in the prior art that can solve the problems of negative pressure, flatulence, and milk oxidation. For example, in the public technology of a new type of anti-flatulence baby bottle with application number 201420577388.7, an anti-flatulence baby bottle is disclosed. It includes a bottle body, a silicone air return bottom plug, a handle, a nipple sleeve, a nipple, and a nipple cover. The upper end of the bottle body is a bottle mouth with an external thread, and the bottom of the bottle body is provided with a bottom plug opening that communicates with the outside of the bottle body. The silicone air return bottom plug is arranged in the bottom plug opening at the bottom of the bottle body and is clamped and sealed. A return air seam that runs through the silicone air return bottom plug head is opened in the center of the silicone air return bottom plug in the longitudinal direction. The handle is screwed on the bottle mouth of the bottle body through the handle sleeve ring in the middle, the nipple sleeve is arranged on the handle sleeve ring of the handle, the nipple is arranged on the nipple sleeve, and the nipple cover covers the upper end of the nipple.

[0005] However, in the above technical solution, the liquid in the bottle body is prone to leakage at the silicone gas return bottom plug, and the sealing performance of the bottle body at the silicone gas return bottom plug is poor, which is inconvenient for users to use.

[0006] In view of the above shortcomings, we need to develop a bottle structure that improves negative pressure balance to meet the needs of the majority of users. Utility Model Content

[0007] In view of the above-mentioned problems that the existing bottle structure is difficult to open when negative pressure occurs in the bottle, is not convenient for drinking, and is prone to bubbles or leakage, the technical solution adopted by the utility model to solve the technical problems is:

[0008] A bottle structure for improving negative pressure balance, comprising a bottle body and a breathable soft rubber detachably connected to the bottom of the bottle body. One side of the breathable soft rubber facing the bottle body extends out a hollow soft rubber connecting part. The bottle body is provided with a soft rubber installation opening for the soft rubber connecting part to extend into and fit for connection. At least one waterproof and breathable part is arranged at the hollow position of the soft rubber connecting part, so that external air can enter the liquid storage cavity of the bottle body for storing liquid through the waterproof and breathable part.

[0009] Further, a one-way flow valve is arranged at the soft rubber connecting part. The output end of the one-way flow valve extends into the liquid storage cavity, and the input end of the one-way flow valve communicates with the outside through the soft rubber connecting part.

[0010] Further, the waterproof and breathable part is integrally formed at the input end of the one-way flow valve.

[0011] Further, the waterproof and breathable part is detachably arranged at the input end of the one-way flow valve.

[0012] Further, a soft rubber accommodating part for accommodating the breathable soft rubber is arranged at the outer bottom of the bottle body. The soft rubber accommodating part is inclined and recessed towards the center of the bottle body, and the soft rubber installation opening is located in the middle of the soft rubber accommodating part.

[0013] Further, the angle between the surface of the soft rubber accommodating part and the horizontal plane is an included angle a, and the value range of the included angle a is between 0 degree and 20 degrees.

[0014] Further, the breathable soft rubber is provided with a soft rubber disk edge for fitting the surface of the soft rubber accommodating part, and the outer diameter of the soft rubber disk edge is larger than the outer diameter of the soft rubber connecting part.

[0015] Further, one side of the soft rubber disk edge away from the soft rubber connecting part is within the range of the soft rubber accommodating part.

[0016] Further, one end of the soft rubber connecting part extending into the liquid storage cavity extends out a soft rubber buckling part towards the direction away from the center of the soft rubber connecting part.

[0017] Further, the waterproof and breathable part is made of polyphenylene sulfide woven fabric or polytetrafluoroethylene fiber.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. The utility model is provided with a detachable breathable soft rubber at the bottom of the bottle body. When the user sucks, the negative pressure generated can drive the outside air to enter through the hollow soft rubber connecting part by means of the waterproof breathable component, so as to balance the air pressure in the bottle, facilitating the user to suck and drink. Since the waterproof breathable component is arranged at the bottom of the bottle body, when the baby uses the nipple to suck, raising the bottom of the bottle body can prevent the gas entering from the breathable soft rubber from passing through the liquid, thus avoiding the generation of bubbles in the liquid by the outside air. At the same time, the waterproof breathable component has the function of preventing the liquid from flowing, achieving the effect of avoiding leakage.

[0020] 2. The utility model is provided with a one-way flow valve in the breathable soft rubber, so that after the outside gas flows into the liquid storage cavity, the liquid in the bottle will not block the waterproof breathable component and affect the breathable effect. The breathable soft rubber is detachable from the bottle body, facilitating the user to clean and install. The waterproof breathable component can also be detached for cleaning or replacement to maintain the normal use of the bottle body structure, effectively improving the negative pressure situation in the bottle and facilitating the user to use.

[0021] 3. The utility model is provided with a soft rubber accommodating part for accommodating the breathable soft rubber at the bottom of the bottle body, so that the installation of the breathable soft rubber will not affect the normal placement of the bottle body, nor will it affect the standing of the bottle body on the tabletop. There is a certain angular range of the included angle for the soft rubber accommodating part, which can meet the demand of the liquid storage cavity capacity while ensuring the accommodation of the breathable soft rubber, facilitating the user to use. Description of the Drawings

[0022] Figure 1 It is a three-dimensional view of a bottle body structure for improving negative pressure balance of the utility model.

[0023] Figure 2 It is a three-dimensional exploded view of a bottle body structure for improving negative pressure balance of the utility model.

[0024] Figure 3 It is a front view of a bottle body structure for improving negative pressure balance of the utility model.

[0025] Figure 4 It is Figure 3 The A-A sectional view of

[0026] Figure 5 It is Figure 4 The enlarged view of B of Detailed Embodiment

[0027] The following will make a detailed description of the embodiments of the utility model in conjunction with the drawings.

[0028] Optionally, in some embodiments, the bottle body 1 can be made of materials such as plastic, plastic, rubber, silica gel, glass, wood, metal, etc. that are heat-resistant and easy to clean, so as to adapt to and accommodate various common liquids with different temperatures and compositions.

[0029] Optionally, in some embodiments, the breathable soft rubber 2 can be made of soft materials such as plastic, plastic, rubber, silica gel, etc., to adapt to the usage scenarios of frequent disassembly and elastic disassembly and assembly. The soft and elastic texture and smooth surface quality can help the breathable soft rubber 2 fit on the bottom surface of the bottle body 1 to form a sealing effect with a certain watertight function, avoiding liquid leakage from the gap between the liquid storage cavity 11 and the breathable soft rubber 2.

[0030] Optionally, in some embodiments, the waterproof and breathable component 4 can be composed of either polyphenylene sulfide woven fabric or polytetrafluoroethylene fiber to achieve the effects of both good waterproofness and good breathability.

[0031] Embodiment 1:

[0032] As Figures 1 to 5 shown, a bottle body structure for improving negative pressure balance includes a bottle body 1 and a breathable soft rubber 2 detachably connected to the bottom of the bottle body 1. Preferably, the bottle body 400 in this embodiment is made of food safety grade silica gel material. The silica gel water bottle is relatively soft, comfortable to hold, and not easily broken, suitable for users to grip. Silica gel also has the characteristic of high temperature resistance and can withstand a temperature of up to 200 °C, suitable for hot water disinfection and use during bathing. The silica gel surface is smooth and not easily residues water slag or odor, and is relatively simple to clean. It can be put into a water bottle cleaning device for cleaning. Compared with glass and some plastics, the silica gel water bottle is easy to mold, can design and produce more styles, and is lighter in weight, convenient to carry, and suitable for outdoor use.

[0033] More specifically, a soft rubber accommodating portion 13 recessed in the direction towards the center of the liquid storage cavity 11 is provided at the bottom of the bottle body 1. A soft rubber installation opening 12 is provided in the middle of the soft rubber accommodating portion 13. The recessed position of the soft rubber accommodating portion 13 adopts a bottle bottom inclined surface structure inclined from the outside to the inside towards the center of the liquid storage cavity 11. The angle formed by the surface of the soft rubber accommodating portion 13 relative to the horizontal plane is an included angle a, and the value range of the included angle a is between 0 degree and 20 degrees. If the included angle a is too large, the recessed space of the soft rubber accommodating portion 13 will affect the liquid storage space of the liquid storage cavity 11. If the included angle a is too small, the bottom of the breathable soft rubber 2 will exceed the recessed space of the soft rubber accommodating portion 13 after installation, affecting the vertical placement of the bottle body 1 and causing the bottle bottom to be unable to stably contact the tabletop. Preferably, the effect is better when the included angle a is 8 degrees, which can not only sufficiently accommodate the breathable soft rubber 2, but also stably place it, and can also ensure sufficient liquid storage space in the liquid storage cavity 11.

[0034] More specifically, the breathable soft rubber 2 is made of silica gel material. A hollow soft rubber connecting part 22 extends from the side of the breathable soft rubber 2 facing the bottle body 1. The outer diameter of the soft rubber connecting part 22 is larger than the inner diameter of the soft rubber mounting opening 12. A soft rubber buckling part 21 for preventing loosening is provided at the extending end of the soft rubber connecting part 22. A soft rubber disk edge 23 is arranged on the side of the breathable soft rubber 2 facing away from the bottle body 1. The outer diameter of the soft rubber disk edge 23 is larger than the outer diameter of the soft rubber connecting part 22, forming a disk-shaped structure extending in the direction away from the center of the breathable soft rubber 2. The thickness of the soft rubber disk edge 23 near the center is greater than the thickness near the edge, and the soft rubber disk edge 23 has a soft rubber inclined surface structure from the center towards the edge.

[0035] More specifically, the waterproof and breathable component 4 is installed at the input end of the soft rubber connecting part 22. The waterproof and breathable component 4 can be installed by pasting it outside the hole, or installed by forming it in a silica gel ring and inserting it using frictional force. The waterproof and breathable component 4 has a woven fiber structure with good waterproofness and breathability. Preferably, in this embodiment, the waterproof and breathable component 4 uses polytetrafluoroethylene fiber as the main preparation material. The polytetrafluoroethylene fiber can use polytetrafluoroethylene (PTFE) or expanded polytetrafluoroethylene (ePTFE) as the main fiber component. The polytetrafluoroethylene fiber has excellent waterproof performance. The high-density molecular structure can effectively prevent water penetration, ensuring that the waterproof and breathable component 4 has a good waterproof effect. The microporous structure of the polytetrafluoroethylene fiber has excellent breathability and can allow water vapor or other air to pass through, thus achieving the breathable effect. In addition, the polytetrafluoroethylene fiber has extremely strong tolerance to most chemicals and solvents and can maintain stable performance in various chemical environments. It is suitable for contacting different types of beverages and liquids without chemical reactions, avoiding pollution of the liquid storage cavity 11. The polytetrafluoroethylene fiber also has good high-temperature resistance and can be used in high-temperature environments without losing its performance. It is suitable for contacting liquids with higher temperatures and high-temperature powder mixing, and has strong adaptability to temperature changes. The surface tension of the polytetrafluoroethylene fiber is relatively low, making it difficult for dirt, grease, etc. to adhere to its surface, which is beneficial to maintaining the cleanliness and breathability of the waterproof and breathable component 4.

[0036] During installation, the breathable soft rubber 2 elastically extends into the soft rubber mounting opening 12 through the soft rubber connecting part 22, so that the soft rubber buckling part 21 enters the liquid storage cavity 11. The soft rubber buckling part 21 elastically expands at the end of the soft rubber mounting opening 12 close to the liquid storage cavity 11 to limit the installation position of the breathable soft rubber 2, so that the breathable soft rubber 2 will not easily loosen and leave the bottle body 1. After the soft rubber connecting part 22 elastically extends into the soft rubber mounting opening 12, the soft rubber inclined surface structure of the soft rubber disk edge 23 contacts and fits on the bottle bottom inclined surface structure of the soft rubber accommodating part 13 to ensure a certain sealing effect between the breathable soft rubber 2 and the bottle body 1, avoiding leakage of the liquid in the liquid storage cavity 11 to the outside and causing pollution, and completing the installation of the breathable soft rubber 2 on the bottle body 1.

[0037] When disassembling, uncover the contact and fitting part from the edge of the soft rubber disk edge 23, withdraw the soft rubber connecting part 22 from the soft rubber disk edge 23 and exit from the soft rubber installation opening 12. The soft rubber fastening part 21 elastically contracts towards the center of the soft rubber connecting part 22 to smoothly exit the soft rubber installation opening 12, completing the disassembly of the breathable soft rubber 2 from the bottle body 1.

[0038] When in use, the user drinks or sucks from the bottle mouth of the bottle body 1, raises the bottom of the bottle body 1 with the hand, so that the liquid is not blocked in the waterproof and breathable part 4. When sucking, the liquid or air inside the liquid storage cavity 11 enters the user's oral cavity along with the sucking, resulting in a negative pressure state in the liquid storage cavity 11. The negative pressure state enables external air to enter the liquid storage cavity 11 from the waterproof and breathable part 4, achieving the effect of balancing the air pressure inside the bottle. The liquid is not blocked in the waterproof and breathable part 4, so there will be no bubbles in the liquid either, avoiding the influence of bubble oxidation on the composition and effect of the liquid. The waterproof property of the waterproof and breathable part 4 prevents the liquid from leaking out to the outside, achieving the effect of preventing leakage in the middle. The soft rubber connecting part 22 elastically presses against the soft rubber installation opening 12, and the soft rubber inclined surface structure of the soft rubber disk edge 23 contacts and fits against the bottle bottom inclined surface structure of the soft rubber accommodating part 13, forming a sealing measure to achieve the effect of preventing leakage at the edge opening.

[0039] Embodiment 2:

[0040] Different from Embodiment 1, in this embodiment, a one-way flow valve 3 is further provided on the soft rubber connecting part 22 of the breathable soft rubber 2. The output end of the one-way flow valve 3 extends into the soft rubber installation opening 12 and is arranged towards the center of the liquid storage cavity 11. An air inlet communicating with the input end is provided at the output end of the one-way flow valve 3, enabling external air to flow through the one-way flow valve 3 to the liquid storage cavity 11, achieving the effect of balancing the air pressure inside the bottle. However, the one-way flow valve 3 only allows one-way flow. After the external air enters the liquid storage cavity 11, the liquid in the liquid storage cavity 11 cannot flow out of the one-way flow valve 3 to the outside, achieving a better sealing effect.

[0041] More specifically, the one-way flow valve 3 can adopt a duckbill valve structure. The output end of the one-way flow valve 3 is an elastically clamped pointed duckbill clip flap. The input end of the one-way flow valve 3 communicates with the soft rubber connecting part 22. The waterproof and breathable part 4 is detachably connected to the input end of the one-way flow valve 3. The waterproof and breathable part 4 can be pasted outside the hole or formed in a silicone ring and inserted using friction. When returning air under the influence of the negative pressure state, external gas enters the liquid storage cavity 11 through the channel of the soft rubber connecting part 22, the waterproof and breathable part 4 and the pointed duckbill clip flap. When the gas passes through the pointed duckbill clip flap, the pointed duckbill clip flap is in an open state. After the gas flow is completed, the pointed duckbill clip flap is in a clamped state, avoiding gas backflow and liquid leakage. In case of accidental liquid leakage, it can also be intercepted by the waterproof effect of the waterproof and breathable part 4. The double-layer waterproof leakage insurance structure can not only breathe and balance the air pressure but also prevent the liquid from leaking out, facilitating the user's use.

[0042] When disassembling and cleaning, the waterproof and breathable component 4 can be removed from the one-way flow valve 3 and cleaned separately to avoid liquid residue affecting the use of the waterproof and breathable component 4 or breeding bacteria.

[0043] Example 3:

[0044] Different from Example 2, the waterproof and breathable component 4 of this example can also be integrally formed at the input end of the one-way flow valve 3, and clamped and shaped on the channel of the soft glue connecting part 22 during the injection molding process to form a non-detachable fixed connection. When cleaning, the pointed duckbill clip petals need to be manually opened to flush the inside of the one-way flow valve 3 with water so that the remaining liquid can be flushed out. After drying, it can be reused to avoid liquid residue affecting the use of the waterproof and breathable component 4 or breeding bacteria.

[0045] Example 4:

[0046] Different from Examples 1-3, the waterproof and breathable component 4 of this example uses a polyphenylene sulfide woven fabric as the main preparation material. Polyphenylene sulfide (PPS) is a new type of high-performance thermoplastic resin. The woven fabric made of polyphenylene sulfide can have good waterproof and breathable effects. Polyphenylene sulfide has extremely strong tolerance to most chemicals and solvents, and its chemical resistance is second only to polytetrafluoroethylene (PTFE). It can also maintain stable performance in a variety of chemical environments, increasing the durability of the waterproof and breathable component 4. Polyphenylene sulfide has good high-temperature resistance and can be used in high-temperature environments without losing its performance. It is suitable for contacting liquids with higher temperatures and high-temperature powder flushing. It has strong adaptability to temperature changes and will not easily deform or fail in high-temperature environments. Polyphenylene sulfide (PPS) has better low water absorption than polytetrafluoroethylene (PTFE), enabling the waterproof and breathable component 4 to maintain its own performance in a humid environment without being affected by liquid contact. Polyphenylene sulfide has strong resistance to ultraviolet rays and can effectively prevent the degradation of the film by ultraviolet rays, extending the service life of the waterproof and breathable component 4.

[0047] Example 5:

[0048] On the basis of any one of Examples 1-4, a bottle cap 6 for detachable covering and sealing can also be provided on the bottle body 1. The bottle cap 6 is a cover structure installed on the bottle body 1 for sealing the liquid storage cavity 11. The bottle cap 6 is independently disassembled outside the bottle body 1. When in use, it is threadedly disassembled and connected with the thread of the bottle body 1 through the thread inside the bottle cap 6 to achieve the effect of covering and sealing the liquid storage cavity 11.

[0049] Example 6:

[0050] On the basis of implementation 5, different from Example 5, the bottle cap 6 of this embodiment is a hollow through structure, and the bottle cap 6 is detachably installed with a pacifier 5 for infants to suck. The pacifier 5 is a water outlet channel structure installed on the bottle cap 6 for the liquid storage chamber 11 to communicate with the outside world. The pacifier 5 can be integrally formed with the bottle cap 6, or the pacifier 5 can be independently detached from the bottle cap 6. The pacifier 5 is provided with a water outlet for the liquid storage chamber 11 to flow out of the liquid. When in use, after the user's mouth approaches and contacts the pacifier 5, the bottom of the bottle body 1 is turned upside down and higher than the pacifier 5, so that the liquid inside the liquid storage chamber 11 is affected by natural gravity and flows toward the direction of the pacifier 5. The liquid contacts the pacifier 5 and flows out to the user's mouth through the water outlet, so that the user can drink. More specifically, the structure of the pacifier 5 contacting the user's mouth can adopt a universal curved surface shape that matches the mouth shape to further improve the adaptability to the user's mouth. The bottle cap 6 and the pacifier 5 are both made of opaque plastic material, so that the elastic structure of the plastic itself can be installed on the bottle body 1 through a threaded disassembly connection.

[0051] like Figures 1 to 5 As shown, the working principle of the utility model is as follows:

[0052] During installation, the breathable soft rubber 2 elastically extends into the soft rubber installation opening 12 through the soft rubber connecting part 22, so that the soft rubber buckling part 21 enters the liquid storage chamber 11, and the soft rubber buckling part 21 elastically unfolds at one end of the soft rubber installation opening 12 close to the liquid storage chamber 11 to limit the installation position of the breathable soft rubber 2, so that the breathable soft rubber 2 will not easily loosen and leave the bottle body 1. After the soft rubber connecting part 22 elastically extends into the soft rubber installation opening 12, the soft rubber inclined surface structure of the soft rubber disk edge 23 contacts and fits with the bottle bottom inclined surface structure of the soft rubber accommodating part 13 to ensure a certain sealing effect between the breathable soft rubber 2 and the bottle body 1, thereby preventing the liquid in the liquid storage chamber 11 from leaking to the outside and causing pollution, and completing the installation of the breathable soft rubber 2 on the bottle body 1.

[0053] When disassembling, peel off the contact part from the edge of the soft rubber plate edge 23, pull the soft rubber connecting part 22 out of the soft rubber installation opening 12 from the soft rubber plate edge 23, and the soft rubber buckle part 21 elastically shrinks toward the center of the soft rubber connecting part 22 to smoothly withdraw from the soft rubber installation opening 12, thereby completing the disassembly of the breathable soft rubber 2 on the bottle body 1.

[0054] When in use, the user drinks or sucks from the bottle mouth of the bottle body 1, and raises the bottom of the bottle body 1 with the hand so that the liquid is not blocked in the waterproof and breathable component 4. When sucking, the liquid or air inside the liquid storage cavity 11 enters the user's oral cavity along with the sucking, resulting in a negative pressure state in the liquid storage cavity 11. The negative pressure state causes external air to enter the liquid storage cavity 11 from the waterproof and breathable component 4, achieving the effect of balancing the air pressure in the bottle. The liquid is not blocked in the waterproof and breathable component 4, so there will be no bubbles in the liquid, avoiding the influence of bubble oxidation on the composition and effect of the liquid. The waterproof property of the waterproof and breathable component 4 prevents the liquid from leaking out to the outside, achieving the effect of preventing leakage in the middle. The soft rubber connecting part 22 elastically presses against the soft rubber installation opening 12, and the soft rubber inclined surface structure of the soft rubber disk edge 23 contacts and fits against the bottle bottom inclined surface structure of the soft rubber accommodating part 13, forming a sealing measure to achieve the effect of preventing leakage at the edge opening.

[0055] The above only uses the embodiment to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re - creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A bottle structure for improving negative pressure balance, characterized in that: The invention comprises a bottle body (1) and a breathable soft glue (2) detachably connected to the bottom of the bottle body (1); the breathable soft glue (2) extends a hollow soft glue connection part (22) toward one side of the bottle body (1); the bottle body (1) is provided with a soft glue installation opening (12) for the soft glue connection part (22) to extend into and be matched with the connection; at least one waterproof breathable component (4) is arranged at the hollow position of the soft glue connection part (22), so that external air can enter the liquid storage cavity (11) of the bottle body (1) for storing liquid through the waterproof breathable component (4).

2. A bottle structure for improving negative pressure balance according to claim 1, characterized in that: The soft rubber connection portion (22) is provided with a one-way circulation valve (3), the output end of the one-way circulation valve (3) extends into the liquid storage chamber (11), and the input end of the one-way circulation valve (3) is connected to the outside via the soft rubber connection portion (22).

3. A bottle structure for improving negative pressure balance according to claim 2, characterized in that: The waterproof and breathable component (4) is integrally formed at the input end of the one-way flow valve (3).

4. The bottle structure for improving negative pressure balance according to claim 2, characterized in that: The waterproof and breathable component (4) is detachably arranged at the input end of the one-way flow valve (3).

5. The bottle structure for improving negative pressure balance according to claim 1, characterized in that: The outer bottom of the bottle body (1) is provided with a soft glue accommodating portion (13) for accommodating the breathable soft glue (2); the soft glue accommodating portion (13) is arranged to be inclined and recessed toward the center of the bottle body (1); and the soft glue installation opening (12) is located in the middle of the soft glue accommodating portion (13).

6. The bottle structure for improving negative pressure balance according to claim 5, characterized in that: The angle at which the surface of the soft glue receiving portion (13) is inclined relative to the horizontal plane is the included angle (a), and the value range of the included angle (a) is between 0 degrees and 20 degrees.

7. The bottle structure for improving negative pressure balance according to claim 5, characterized in that: The breathable soft glue (2) is provided with a soft glue edge (23) for fitting onto the surface of the soft glue receiving portion (13); the outer diameter of the soft glue edge (23) is greater than the outer diameter of the soft glue connecting portion (22).

8. The bottle structure for improving negative pressure balance according to claim 7, characterized in that: A side of the soft glue plate edge (23) away from the soft glue connecting portion (22) is located within the range of the soft glue accommodating portion (13).

9. The bottle structure for improving negative pressure balance according to claim 1, characterized in that: One end of the soft rubber connecting portion (22) extending into the liquid storage cavity (11) extends out of a soft rubber buckling portion (21) in a direction away from the center of the soft rubber connecting portion (22).

10. A bottle structure for improving negative pressure balance according to any one of claims 1 to 9, characterized in that: The waterproof and breathable component (4) is made of polyphenylene sulfide woven fabric or polytetrafluoroethylene fiber.

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