Feeding bottle

Abstract

The utility model relates to the field of feeding bottles, in particular to a feeding bottle which comprises a feeding bottle body, and the feeding bottle body comprises a nipple assembly, a bottle body connected with the nipple assembly, a mounting hole located on one side of the bottle body and communicated with an inner cavity of the bottle body, and a waterproof breathable film located on the mounting hole. The waterproof breathable film is used for preventing steam from entering the inner cavity of the bottle body from the mounting hole, the waterproof breathable film can enable outside air to enter the bottle body so as to achieve balance between the air pressure inside the feeding bottle and the air pressure outside the feeding bottle, the problem that negative air pressure is generated inside the feeding bottle in the milk sucking process of a baby, and milk sucking of the baby is blocked is solved, and the milk sucking quality of the baby is improved. Meanwhile, liquid in the bottle can be isolated from liquid outside the bottle, the liquid in the bottle is prevented from leaking, the liquid outside the bottle is prevented from entering the bottle, and the practicability of the feeding bottle is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of feeding bottles, in particular to a feeding bottle. BACKGROUND

[0002] With the development of society, the types of baby products gradually enrich, and the feeding bottle as the main product of feeding baby, the growth of each baby cannot leave the feeding bottle, the constant pressure feeding bottle on the market has the function of balancing air pressure, the feeding bottle has a vent on one side to balance air pressure, but now many mothers will prepare breast milk in advance in the feeding bottle, use the milk warmer to keep warm, and take out the feeding bottle when feeding, the milk warmer on the market mainly uses water as medium, needs to keep the feeding bottle in water to keep warm, the ordinary constant pressure feeding bottle does not have waterproof function, and the water outside the feeding bottle will enter the bottle when the feeding bottle is soaked in water, causing the milk in the bottle to be contaminated. In view of the above problems, a feeding bottle needs to be developed to solve the problem of external water entering the feeding bottle and contaminating the milk when the feeding bottle is kept warm. SUMMARY

[0003] In view of the above-mentioned problem that the existing constant pressure feeding bottle does not have waterproof function and the water outside the feeding bottle will enter the bottle when it is soaked in water, causing the milk in the bottle to be contaminated, the technical solution adopted by the utility model to solve its technical problems is:

[0004] A feeding bottle, comprising a feeding bottle body, the feeding bottle body comprising a nipple assembly, a bottle body connected with the nipple assembly, a mounting hole located on one side of the bottle body and communicating with the inner cavity of the bottle body, and a waterproof and breathable film located on one side of the mounting hole, the waterproof and breathable film is used to prevent water vapor from entering the inner cavity of the bottle body from the mounting hole.

[0005] A feeding bottle, comprising a feeding bottle body, the feeding bottle body comprising an air inlet valve arranged on one side of the bottle body, the air inlet valve having elasticity, the air inlet valve comprising an air outlet portion communicating with the bottle body and an air inlet portion communicating with the outside of the bottle body, and the air outlet portion and the air inlet portion are in communication.

[0006] A feeding bottle, the air outlet portion is provided with an air outlet, the air inlet portion is provided with an air inlet hole, the air outlet and the air inlet hole are in communication, the air inlet valve comprises the waterproof and breathable film arranged between the air outlet and the air inlet hole, and air passes through the air inlet hole, the waterproof and breathable film and the air outlet to enter the inner cavity of the bottle body.

[0007] A feeding bottle, the air inlet valve comprises at least one fixing ring connected with the waterproof and breathable film, a fixing groove corresponding in shape and size to the fixing ring, the fixing ring is provided with a breathable hole, the fixing ring is arranged in the fixing groove, and the breathable hole is communicated with the air outlet and the air inlet hole.

[0008] A feeding bottle, the air inlet part is provided with a fitting block in contact with the bottom of the bottle body, and the waterproof and breathable film is located between the two fixing rings.

[0009] A feeding bottle, the air inlet valve includes a gas storage chamber between the air outlet and the waterproof and breathable film, the gas storage chamber is in communication with the air outlet, the air hole and the air inlet hole, and air enters the inner cavity of the bottle body through the air inlet hole, the waterproof and breathable film, the air hole, the gas storage chamber and the air outlet.

[0010] A feeding bottle, the cross section of the air outlet part is a first trapezoid, and the lower base length of the first trapezoid is greater than or equal to the diameter of the mounting hole.

[0011] A feeding bottle, the cross section of the air outlet is a second trapezoid, and the air outlet includes a gap on the upper base of the second trapezoid, and air enters the inner cavity of the bottle body through the gap.

[0012] A feeding bottle, the diameter of the air inlet hole is greater than or equal to the diameter of the air hole, and the diameter of the air hole is greater than or equal to the diameter of the gas storage chamber.

[0013] A feeding bottle, the waterproof and breathable film is a bidirectional waterproof and breathable film or a unidirectional waterproof and breathable film.

[0014] The beneficial effects of the present application are as follows:

[0015] The waterproof and breathable film of the present application can allow outside air to enter the inside of the bottle body, so as to balance the internal and external air pressure of the feeding bottle, solve the problem of negative air pressure in the feeding bottle during the feeding process of the baby, and reduce the risk of the baby choking on milk, and at the same time, the liquid in the bottle and the liquid outside the bottle can be isolated, preventing the liquid in the bottle from leaking and the liquid outside the bottle from entering the bottle, and effectively improving the practicability of the feeding bottle. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure diagram of a feeding bottle of the present application.

[0017] Figure 2 It is an A-A sectional view of a feeding bottle of the present application.

[0018] Figure 3 It is an explosion view of a structure of a feeding bottle of the present application.

[0019] Figure 4 It is a structure diagram of an air inlet valve of a feeding bottle of the present application.

[0020] Figure 5 It is a bottom view of an air inlet valve of a feeding bottle of the present application.

[0021] Figure 6 It is a structure schematic view of a feeding bottle of the utility model.

[0022] Figure 7 It is a B-B sectional view of a feeding bottle of the utility model.

[0023] Figure 8 It is an explosion view of a feeding bottle structure of the utility model.

[0024] Figure 9 It is a structure schematic view of an air inlet valve of a feeding bottle of the utility model.

[0025] Figure 10 It is a bottom schematic view of an air inlet valve of a feeding bottle of the utility model. DETAILED DESCRIPTION

[0026] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0027] Embodiment 1

[0028] Please refer to Figures 1 to 5 A feeding bottle, comprising a feeding bottle body 1, the feeding bottle body 1 includes a nipple assembly 11, the bottle body 12 connected with the nipple assembly 11, the installation hole 131 located in one side of the bottle body 12 and the inner cavity of the bottle body 12 is communicated, the waterproof air-permeable membrane 132 located in one side of the installation hole 131, the waterproof air-permeable membrane 132 is used to prevent water vapor from entering the inner cavity of the bottle body 12 from the installation hole 131, and the bottle body 12 is of glass material. With such design, the waterproof air-permeable membrane 132 can allow air to pass through to balance the bottle air pressure, avoid the baby from producing vacuum when sucking to cause milk to be inhaled or too much air to cause bloating, prevent water molecules from entering at the same time, effectively prevent water from penetrating into the inner cavity of the bottle body 12 when being kept warm in the milk warmer or being washed, ensure that the milk is not contaminated, and effectively improve the practicability of the feeding bottle.

[0029] Further, please refer to Figures 1 to 5 A feeding bottle, the feeding bottle body 1 includes the air inlet valve 122 arranged in one side of the bottle body 12, the air inlet valve 122 has elasticity, the air inlet valve 122 includes the air outlet part 1221 communicated with the bottle body 12 and the air inlet part 1222 communicated with the outside of the bottle body 12, and the air outlet part 1221 is communicated with the air inlet part 1222. With such design, the air outlet part 1221 is communicated with the inner cavity of the bottle body 12, so that when the milk is sucked out, air can enter the bottle through the air inlet valve 122 to ensure that the pressure inside and outside the bottle is balanced, and the air inlet part 1222 is communicated with the outside of the bottle body 12, responsible for introducing fresh air from the outside, and the communication between the air inlet part 1222 and the air outlet part ensures the circulation of airflow.

[0030] Further, please refer to Figures 1 to 5 A feeding bottle, the air outlet 1221 is provided with an air outlet 12211, the air inlet part 1222 is provided with an air inlet hole 12221, the air outlet 12211 and the air inlet hole 12221 are communicated, the air inlet valve 122 includes the waterproof air permeable film 132 arranged between the air outlet 12211 and the air inlet hole 12221, air passes through the air inlet hole 12221, the waterproof air permeable film 132, the air outlet 12211 and enters the inner cavity of the bottle body 12. The air inlet valve 122 is installed with the waterproof air permeable film 132, so that the feeding bottle obtains the waterproof function, the waterproof air permeable film 132 effectively prevents water and pollutants from entering the inner cavity of the bottle body 12 through the air inlet hole 12221, when the baby sucks, the inner cavity of the bottle body 12 generates negative air pressure, the air outside the bottle passes through the air inlet hole 12221, is filtered through the waterproof air permeable film 132, and then enters the inner cavity of the bottle body 12 through the air outlet 12211. Such design provides the feeding bottle with the waterproof and air permeable function, can effectively reduce the resistance of the baby sucking milk, prevent the baby from appearing milk choking and bloating and other problems when sucking milk, and effectively improve the practicability of the feeding bottle and the use experience of the baby.

[0031] Further, please refer to Figures 1 to 5The air inlet valve 122 comprises a fixing ring 1224 connected with the waterproof air permeable film 132, a fixing groove 1225 corresponding in size and shape to the fixing ring 1224, the fixing ring 1224 is provided with air permeable holes 12241, the fixing ring 1224 is arranged in the fixing groove 1225, the air permeable holes 12241 are communicated with the air outlet 12211 and the air inlet hole 12221, and the fixing ring 1224 is made of silica gel. With the design, the fixing ring 1224 is used for fixing the position of the waterproof air permeable film 132 in the fixing groove 1225, the fixing groove 1225 corresponds in size and shape to the fixing ring 1224, so that the fixing ring 1224 can be embedded in the fixing groove 1225, the stability of the overall structure of the air inlet valve 122 is enhanced, meanwhile, the fixing ring 1224 and the fixing groove 1225 form physical protection for the waterproof air permeable film 132, the service life of the waterproof air permeable film 132 is effectively prolonged, the damage risk caused by abrasion or misoperation is reduced, the air permeable holes 12241 on the fixing ring 1224 provide a channel for gas flow, and it is ensured that air can enter the inner cavity of the bottle body 12 after being filtered by the waterproof air permeable film 132, when the baby sucks, air enters the air inlet hole 12221 and passes through the air permeable holes 12241, then passes through the waterproof air permeable film 132 for filtration, and then continues to flow to the air outlet 12211, and finally enters the inner cavity of the bottle body 12, so that air pressure balance is realized.

[0032] Further, referring to Figures 1 to 5 The air inlet valve 122 comprises a fixing ring 1224 connected with the waterproof air permeable film 132, a fixing groove 1225 corresponding in size and shape to the fixing ring 1224, the fixing ring 1224 is provided with air permeable holes 12241, the fixing ring 1224 is arranged in the fixing groove 1225, the air permeable holes 12241 are communicated with the air outlet 12211 and the air inlet hole 12221, and the fixing ring 1224 is made of silica gel. With the design, the fixing ring 1224 is used for fixing the position of the waterproof air permeable film 132 in the fixing groove 1225, the fixing groove 1225 corresponds in size and shape to the fixing ring 1224, so that the fixing ring 1224 can be embedded in the fixing groove 1225, the stability of the overall structure of the air inlet valve 122 is enhanced, meanwhile, the fixing ring 1224 and the fixing groove 1225 form physical protection for the waterproof air permeable film 132, the service life of the waterproof air permeable film 132 is effectively prolonged, the damage risk caused by abrasion or misoperation is reduced, the air permeable holes 12241 on the fixing ring 1224 provide a channel for gas flow, and it is ensured that air can enter the inner cavity of the bottle body 12 after being filtered by the waterproof air permeable film 132, when the baby sucks, air enters the air inlet hole 12221 and passes through the air permeable holes 12241, then passes through the waterproof air permeable film 132 for filtration, and then continues to flow to the air outlet 12211, and finally enters the inner cavity of the bottle body 12, so that air pressure balance is realized.

[0033] Further, referring to Figures 1 to 5The air inlet valve 122 comprises a gas storage chamber 1223 between the air outlet 12211 and the waterproof air permeable film 132. The gas storage chamber 1223 is in communication with the air outlet 12211, the air permeable hole 12241 and the air inlet hole 12221. Air enters the inner cavity of the bottle body 12 through the air inlet hole 12221, the waterproof air permeable film 132, the air permeable hole 12241, the gas storage chamber 1223 and the air outlet 12211. With this design, the gas storage chamber 1223 is located between the air outlet 12211 and the waterproof air permeable film 132, which acts as an intermediate station for air flow and can play a buffering role. When the baby sucks, the external air first passes through the air inlet hole 12221, then passes through the filter of the waterproof air permeable film, enters the gas storage chamber 1223, and then gradually releases to the inner cavity of the bottle body 12 through the air outlet 12211. This design can more smoothly regulate the air pressure in the bottle, reduce the possibility of air directly impacting the milk, make the sucking process more gentle, and reduce the possibility of the baby swallowing air. In addition, the gas storage chamber 1223 can also improve the overall stability of the air inlet valve 122, reduce the risk of deformation or damage of the air inlet valve 122 caused by external force, and further improve the service life of the baby bottle.

[0034] Further, please refer to Figures 1 to 5 The cross section of the air outlet part 1221 is a first trapezoid 12212, and the lower base length of the first trapezoid 12212 is greater than or equal to the diameter of the mounting hole 131. The design that the lower base length of the first trapezoid 12212 is greater than or equal to the diameter of the mounting hole 131 is to enable the air outlet part 1221 to be clamped in the inner cavity of the bottle body 12, and the lower base length of the first trapezoid 12212 limits the air outlet part 1221 from being separated from the mounting hole 131, thereby fixing the one-way air inlet valve 122.

[0035] Further, please refer to Figures 1 to 5 The cross section of the air outlet part 1221 is a first trapezoid 12212, and the lower base length of the first trapezoid 12212 is greater than or equal to the diameter of the mounting hole 131. The design that the lower base length of the first trapezoid 12212 is greater than or equal to the diameter of the mounting hole 131 is to enable the air outlet part 1221 to be clamped in the inner cavity of the bottle body 12, and the lower base length of the first trapezoid 12212 limits the air outlet part 1221 from being separated from the mounting hole 131, thereby fixing the one-way air inlet valve 122.

[0036] Further, please refer to Figures 1 to 5 A feeding bottle, the air inlet hole 12221 has a diameter greater than or equal to that of the air permeable hole 12241, and the air permeable hole 12241 has a diameter greater than or equal to that of the air storage chamber 1223. The air inlet hole 12221 is designed to have a relatively large diameter, which is conducive to quickly introducing external air when the baby is sucking, reducing air flow resistance, ensuring smooth airflow, and avoiding difficulty in sucking due to insufficient air pressure. The diameters of the air permeable hole 12241 and the air storage chamber are reduced accordingly, which gradually adjusts and controls the air flow into the bottle, maintains smooth transition of air pressure, and reduces the impact of air flow on the baby's experience.

[0037] Further, please refer to Figures 1 to 5 A feeding bottle, the waterproof air permeable film 132 is a one-way waterproof air inlet film. With such a design, air outside the bottle can enter the inner cavity of the bottle body 12 through the waterproof air permeable film 132, and impurities in the air outside the bottle cannot enter the inner cavity of the bottle body 132 through the waterproof air permeable film 132, but liquid outside the bottle cannot enter the inner cavity of the bottle body 12 through the waterproof air permeable film 132, which protects the milk inside the bottle.

[0038] Specific working principle: when the feeding bottle is placed in the milk warmer for heating and keeping warm, the feeding bottle is immersed in water, and the waterproof air permeable film 132 blocks water, so that external water cannot enter the inner cavity of the bottle body 12 from the air inlet hole 12221. When the baby sucks milk, negative air pressure is generated in the bottle, at which time air will pass through the air inlet hole 12221, the waterproof air permeable film 132, the air permeable hole 12241, the air storage chamber 1223, and the air outlet 12211 in turn. The gap 122111 in the closed state will be opened under the action of negative air pressure, and air will enter the inner cavity of the bottle body 12, so that the air pressure inside and outside the bottle is the same. When the baby stops sucking, the bottle no longer generates negative air pressure, and the gap 122111 returns to the closed state.

[0039] Example 2

[0040] Please refer to Figures 6 to 10The utility model provides a feeding bottle, which comprises a feeding bottle body 1, the feeding bottle body 1 comprises a nipple assembly 11, a bottle body 12 connected with the nipple assembly 11, a mounting hole 131 located on one side of the bottle body 12 and communicating with the inner cavity of the bottle body 12, a waterproof and breathable film 132 located on one side of the mounting hole 131, the waterproof and breathable film 132 is used for preventing water vapor from entering the inner cavity of the bottle body 12 from the mounting hole 131, and the bottle body 12 is made of PPSU plastic material. With the design, the waterproof and breathable film 132 can allow air to pass through to balance the air pressure in the bottle, avoid the baby from being choked or bloated due to the inhalation of too much air when sucking, and prevent water molecules from entering, effectively prevent water from penetrating into the inner cavity of the bottle body 12 when the bottle is heated in a bottle warmer or cleaned, ensure that the milk is not contaminated, and effectively improve the practicability of the feeding bottle.

[0041] Further, please refer to Figures 6 to 10 The utility model provides a feeding bottle, which comprises a feeding bottle body 1, the feeding bottle body 1 comprises a nipple assembly 11, a bottle body 12 connected with the nipple assembly 11, a mounting hole 131 located on one side of the bottle body 12 and communicating with the inner cavity of the bottle body 12, a waterproof and breathable film 132 located on one side of the mounting hole 131, the waterproof and breathable film 132 is used for preventing water vapor from entering the inner cavity of the bottle body 12 from the mounting hole 131, and the bottle body 12 is made of PPSU plastic material. With the design, the waterproof and breathable film 132 can allow air to pass through to balance the air pressure in the bottle, avoid the baby from being choked or bloated due to the inhalation of too much air when sucking, and prevent water molecules from entering, effectively prevent water from penetrating into the inner cavity of the bottle body 12 when the bottle is heated in a bottle warmer or cleaned, ensure that the milk is not contaminated, and effectively improve the practicability of the feeding bottle.

[0042] Further, please refer to Figures 6 to 10The air outlet 1221 is provided with an air outlet 12211, the air inlet 1222 is provided with an air inlet hole 12221, the air outlet 12211 and the air inlet hole 12221 are communicated, the air inlet valve 122 includes the waterproof and breathable film 132 arranged between the air outlet 12211 and the air inlet hole 12221, and air enters the inner cavity of the bottle body 12 through the air inlet hole 12221, the waterproof and breathable film 132 and the air outlet 12211. The waterproof and breathable film 132 is installed on the air inlet valve 122, so that the baby bottle has a waterproof function, the waterproof and breathable film 132 effectively prevents water and pollutants from entering the inner cavity of the bottle body 12 through the air inlet hole 12221, when the baby sucks, the inner cavity of the bottle body 12 generates negative air pressure, air outside the bottle enters the inner cavity of the bottle body 12 through the air inlet hole 12221, the waterproof and breathable film 132 and the air outlet 12211. Such design provides the baby bottle with the functions of waterproof and air permeability, can effectively reduce the resistance of the baby during milk sucking, prevent the baby from choking and bloating during milk sucking, and effectively improve the practicability of the baby bottle and the use experience of the baby.

[0043] Further, please refer to Figures 6 to 10 The air inlet valve 122 includes at least one fixing ring 1224 connected with the waterproof and breathable film 132, a fixing groove 1225 corresponding in shape and size to the fixing ring 1224, the fixing ring 1224 is provided with a breathable hole 12241, the fixing ring 1224 is arranged in the fixing groove 1225, the fixing ring 1224 is made of silica gel, and the breathable hole 12241 is communicated with the air outlet 12211 and the air inlet hole 12221. With such design, the fixing ring 1224 is used to fix the position of the waterproof and breathable film 132 in the fixing groove 1225, the shape and size of the fixing groove 1225 correspond to the fixing ring 1224, so that the fixing ring 1224 can be embedded in the fixing groove 1225, thereby enhancing the stability of the overall structure of the air inlet valve 122. At the same time, the fixing ring 1224 and the fixing groove 1225 form physical protection for the waterproof and breathable film 132, which can effectively prolong the service life of the waterproof and breathable film 132, reduce the damage risk caused by wear or misoperation, and the breathable hole 12241 on the fixing ring 1224 provides a channel for gas flow, ensuring that air can enter the inner cavity of the bottle body 12 after being filtered by the waterproof and breathable film 132. When the baby sucks, air enters the breathable hole 12241 from the air inlet hole 12221 and passes through the breathable hole 12241, is filtered by the waterproof and breathable film 132 first, and then continues to flow to the air outlet 12211 and finally enters the inner cavity of the bottle body 12, so as to realize air pressure balance.

[0044] Further, please refer to Figures 6 to 10 The air inlet part 1222 is provided with a fitting block 12222 on the outer periphery side, which abuts against the bottom of the bottle body 12, and the waterproof and breathable film 132 is located between the two fixing rings 1224. The fitting block 12222 is designed to be in direct contact with and tightly fit the bottom of the bottle body 12, which can ensure that the air inlet part 1222 maintains an accurate position after installation, prevents the air inlet valve 122 from being displaced due to external force, increases the stability of the entire bottle structure, and helps to improve the sealing performance of the air inlet valve 122, preventing gas or liquid from entering the inner cavity of the bottle body 12 from the gap between the mounting hole 131 and the air inlet valve 122, polluting the milk in the bottle, effectively improving the sealing performance and structural integrity of the bottle, and the two fixing rings 1224 jointly clamp the waterproof and breathable film 132, which can ensure that the waterproof and breathable film 132 is fixed in position during use and is not easy to shift or fall off, thereby enhancing the structural stability of the entire air inlet valve assembly.

[0045] Further, please refer to Figures 6 to 10 The waterproof and breathable film 132 is a bidirectional waterproof and breathable film. The bidirectional waterproof and breathable film allows gas to flow freely in two directions while preventing water from penetrating, can balance the pressure inside and outside the bottle more quickly, reduce the resistance when the baby sucks, avoid bloating, and effectively improve the practicality of the bottle and the experience of the baby.

[0046] Specific working principle: when the bottle is placed in the milk warmer for heating and keeping warm, the bottle is immersed in water, and the waterproof and breathable film 132 connected with the fixing ring 1224 and located in the fixing groove 1225 blocks the water outside the bottle from entering the bottle to pollute the milk, and filters the air outside the bottle, preventing impurities in the air outside the bottle from entering the inner cavity of the bottle body 12 to pollute the milk. When the baby sucks the milk, negative air pressure is generated in the bottle, at which time air will enter the inner cavity of the bottle body 12 through the air holes 141, the waterproof and breathable film 132 and the mounting hole 131 in sequence, so that the air pressure inside and outside the bottle is the same, ensuring good air permeability to avoid choking or bloating caused by vacuum when the baby sucks.

[0047] The above only further illustrates the technical content of the present application with examples, so that the reader can more easily understand, but does not represent that the embodiments of the present application are limited to this, any technical extension or re-creation made according to the present application is also protected by the present application. The protection scope of the present application is subject to the claims.

Claims

1. A feeding bottle comprising a feeding bottle body (1), characterised in that: The feeding bottle body (1) comprises a nipple assembly (11), a bottle body (12) connected with the nipple assembly (11), a mounting hole (131) located on one side of the bottle body (12) and communicating with the inner cavity of the bottle body (12), and a waterproof and breathable film (132) located on one side of the mounting hole (131), which is used to prevent water vapor from entering the inner cavity of the bottle body (12) from the mounting hole (131).

2. A feeding bottle according to claim 1, characterised in that: The feeding bottle body (1) comprises an air inlet valve (122) arranged on one side of the bottle body (12), the air inlet valve (122) is elastic, and the air inlet valve (122) comprises an air outlet part (1221) communicating with the bottle body (12) and an air inlet part (1222) communicating with the outside of the bottle body (12), and the air outlet part (1221) communicates with the air inlet part (1222).

3. A feeding bottle according to claim 2, wherein: The air outlet part (1221) is provided with an air outlet (12211), the air inlet part (1222) is provided with an air inlet hole (12221), the air outlet (12211) and the air inlet hole (12221) are communicated, and the air inlet valve (122) comprises the waterproof and breathable film (132) arranged between the air outlet (12211) and the air inlet hole (12221), air enters the inner cavity of the bottle body (12) through the air inlet hole (12221), the waterproof and breathable film (132) and the air outlet (12211).

4. A feeding bottle according to claim 3, wherein: The air inlet valve (122) comprises at least one fixing ring (1224) connected with the waterproof and breathable film (132) and a fixing groove (1225) corresponding in shape and size to the fixing ring (1224), the fixing ring (1224) is provided with a breathable hole (12241), the fixing ring (1224) is arranged in the fixing groove (1225), and the breathable hole (12241) is communicated with the air outlet (12211) and the air inlet hole (12221).

5. A feeding bottle according to claim 4, characterised in that: The air inlet part (1222) is provided with an abutting block (12222) abutting against the bottom of the bottle body (12) on the outer periphery side, and the waterproof and breathable film (132) is located between the two fixing rings (1224).

6. A feeding bottle according to claim 4, wherein: The air inlet valve (122) comprises a gas storage chamber (1223) arranged between the air outlet (12211) and the waterproof and breathable film (132), the gas storage chamber (1223) is communicated with the air outlet (12211), the breathable hole (12241) and the air inlet hole (12221), and air enters the inner cavity of the bottle body (12) through the air inlet hole (12221), the waterproof and breathable film (132), the breathable hole (12241), the gas storage chamber (1223) and the air outlet (12211).

7. A baby bottle as claimed in claim 3, characterised in that: The cross section of the air outlet part (1221) is a first trapezoid (12212), and the lower base length of the first trapezoid (12212) is greater than or equal to the diameter of the mounting hole (131).

8. A baby bottle according to claim 3, wherein: The section of the air outlet (12211) is a second trapezoid (122112), and the air outlet (12211) comprises a gap (122111) on the upper base of the second trapezoid (122112), through which air enters the inner cavity of the bottle body (12).

9. A baby bottle according to claim 6, wherein: The diameter of the air inlet hole (12221) is greater than or equal to the diameter of the air permeable hole (12241), and the diameter of the air permeable hole (12241) is greater than or equal to the diameter of the air storage chamber (1223).

10. A baby bottle as claimed in claim 1, characterised in that: The waterproof and air-permeable film (132) is a bidirectional waterproof and air-permeable film or a unidirectional waterproof and air-permeable film.

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