Anti-gas bottle and bottle air inlet valve
By incorporating a waterproof and breathable membrane and a limiting and sealing structure into the air inlet valve at the bottom of the bottle, the problem of insufficient air and water resistance in the bottle's air inlet valve is solved, achieving the effects of preventing bloating and contamination, and improving the safety and comfort of infant feeding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州布布健康科技有限公司
- Filing Date
- 2025-03-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing bottle air inlet valves are inadequate in preventing air from entering the milk and in terms of water resistance, leading to problems such as bloating and milk contamination during infant feeding.
An anti-colic baby bottle has been designed with an air inlet valve located at the bottom of the bottle body. It is equipped with a waterproof and breathable membrane and a limiting sealing structure to ensure the air inlet valve is sealed to the bottle body. The waterproof and breathable membrane also prevents hot water from entering and avoids milk contamination.
It effectively prevents air from entering the milk, avoids infant colic, improves feeding safety and comfort, and enhances the waterproof performance of the air inlet valve to prevent milk contamination.
Smart Images

Figure CN224484534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of baby bottles, and in particular to an anti-colic baby bottle and a baby bottle air inlet valve. Background Technology
[0002] Baby bottles are one of the most commonly used tools in infant feeding. To facilitate infant sucking and to adjust the air pressure inside and outside the bottle in real time during feeding, traditional baby bottles are usually equipped with an air inlet valve to prevent milk from flowing out obstructed or to prevent difficulty in sucking. However, existing air inlet valve designs have some shortcomings, especially in preventing air from entering the milk and in terms of waterproofing.
[0003] Firstly, during the milk warming process, the bottle is usually placed in warm water. Because traditional air vent valves have poor waterproofing, when the valve is located at the bottom of the bottle, hot water may enter through the air vent, contaminating the milk and affecting its hygiene and safety. Furthermore, water ingress can clog the air vent valve, affecting its normal function. Therefore, to prevent milk contamination, some bottles typically have the air vent designed on the nipple or the outer circumference of the bottle, as illustrated in the utility model patent with authorization number CN2226943Y, which places the air vent on the nipple. However, during infant feeding, when the bottle is lifted, milk can easily cover the air vent inside the valve. Due to pressure changes inside the bottle during feeding, air enters through the valve, allowing outside air to enter the milk. This can cause the infant to inhale too much air while feeding, leading to bloating, hiccups, and other discomfort, affecting the infant's health and comfort.
[0004] Therefore, it is necessary to provide a simple and low-cost air inlet valve and bottle structure to effectively prevent air from entering the milk and causing bloating, and to prevent water from entering when heating milk, so as to improve the safety and comfort of infant feeding. Utility Model Content
[0005] Therefore, in order to solve the above problems, this utility model provides an anti-colic baby bottle and a baby bottle air inlet valve.
[0006] This utility model is achieved through the following technical solution:
[0007] An anti-colic baby bottle includes a bottle body, an air inlet valve at the bottom of the bottle body, a valve seat with an air inlet hole inside the valve seat, a hollow sealing plug at the top of the valve seat, an air inlet channel formed inside the sealing plug, the bottom of the air inlet channel communicating with the air inlet hole, a valve lip formed at the top of the sealing plug, the interior of the valve lip communicating with the air inlet channel, and an air slit formed at the top of the valve lip, a waterproof and breathable membrane at the bottom of the air inlet hole, the valve seat being connected to the outer surface of the bottom of the bottle body, a through hole at the bottom of the bottle body, the sealing plug passing through the through hole at the bottom of the bottle body, and the valve lip extending into the interior of the bottle body.
[0008] Preferably, the bottom of the valve seat is provided with an installation groove, and at least one waterproof and breathable membrane is provided in the installation groove. The waterproof and breathable membrane is coaxially arranged with the air inlet, and the diameter of the waterproof and breathable membrane is larger than the diameter of the air inlet.
[0009] Preferably, a limiting groove is coaxially provided at the bottom of the bottle body, the valve seat is embedded in the limiting groove, and the upper surface of the valve seat abuts against the top of the limiting groove.
[0010] Preferably, a limiting sealing ring is formed on the outer periphery of the top of the sealing plug. The limiting sealing ring extends circumferentially along the sealing plug and a limiting step surface is formed at the bottom of the limiting sealing ring. The limiting step surface abuts against the inner bottom surface of the bottle body, and the valve lip is located inside the limiting sealing ring.
[0011] Preferably, the through hole is coaxially disposed within the limiting groove, and the height of the through hole is equal to the height difference between the limiting step surface and the upper surface of the valve seat.
[0012] Preferably, the sealing plug, air inlet, and air inlet channel are coaxially arranged, and an air inlet chamber is formed inside the valve lip, with the air inlet chamber located directly above the air inlet channel.
[0013] Preferably, the valve seat, sealing plug, limiting sealing ring, and valve lip are integrally formed.
[0014] Preferably, the thickness of the valve lip is less than the thickness of the valve seat and the sealing plug.
[0015] A baby bottle air inlet valve includes a valve seat, an air inlet hole inside the valve seat, a hollow sealing plug on the top of the valve seat, an air inlet channel formed inside the sealing plug, the bottom of the air inlet channel communicating with the air inlet hole, a valve lip formed on the top of the sealing plug, the interior of the valve lip communicating with the air inlet channel, and an air slit formed on the top of the valve lip. A waterproof and breathable membrane is also provided at the bottom of the air inlet hole.
[0016] Preferably, a limiting sealing ring is formed on the outer periphery of the top of the sealing plug, the limiting sealing ring extends circumferentially along the sealing plug, and the valve lip is located inside the limiting sealing ring.
[0017] The beneficial effects of this utility model's technical solution are mainly reflected in:
[0018] 1. In the anti-colic bottle structure, the air inlet valve is located at the bottom of the bottle. When the baby is sucking milk, the bottle is lifted up, and the air lip of the air inlet valve will not come into contact with the milk. Therefore, when the air pressure inside the bottle changes and outside air enters the bottle through the air lip, it will not be forced into the milk, thus avoiding colic. At the same time, a waterproof and breathable membrane is set at the bottom of the air inlet of the air inlet valve. This waterproof and breathable membrane further improves the waterproof performance of the air inlet valve, thus ensuring that water will not enter when heating milk.
[0019] 2. The bottom of the bottle body is equipped with a limiting groove and through hole for installing the air inlet valve. At the same time, the valve seat of the air inlet valve matches the limiting groove, the sealing plug passes through the through hole, and the limiting sealing ring at the top further improves the sealing performance at the connection between the air inlet valve and the bottle body, preventing water from entering at the connection between the air inlet valve and the bottle body.
[0020] 3. The air inlet valve of the baby bottle is equipped with a waterproof and breathable membrane, as well as a sealing plug and a limiting sealing ring, which can improve the overall waterproof performance of the air inlet valve. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of an anti-colic baby bottle;
[0022] Figure 2 yes Figure 1 Enlarged view of section A;
[0023] Figure 3 This is a bottom view of an anti-colic baby bottle;
[0024] Figure 4 It is a 3D diagram of the air inlet valve on a baby bottle;
[0025] Figure 5 This is a top view of the air inlet valve on a baby bottle. Detailed Implementation
[0026] To make the objectives, advantages, and features of this utility model clearer and more detailed, the following non-limiting description of preferred embodiments will be illustrated and explained. These embodiments are merely typical examples of applying the technical solutions of this utility model; any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.
[0027] It should also be stated that, in the description of the solution, the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification, 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 utility model.
[0028] Furthermore, the terms "first" and "second" in this solution are used for descriptive purposes only and should not be construed as indicating or implying a ranking of importance, or implicitly specifying the number of technical features shown. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0029] This utility model discloses an anti-colic baby bottle, such as Figures 1-3 As shown, the device includes a bottle body 1, with a nipple connected to the top of the bottle body 1. An air inlet valve is located at the bottom of the bottle body 1. The air inlet valve includes a valve seat 2, with an air inlet hole 3 coaxially arranged inside the valve seat 2. A hollow sealing plug 4 is located at the top of the valve seat 2, and an air inlet channel 5 is formed inside the sealing plug 4. The bottom of the air inlet channel 5 communicates with the air inlet hole 3. A valve lip 6 is also formed at the top of the sealing plug 4, and the interior of the valve lip 6 communicates with the air inlet channel 5. The valve lip 6 is V-shaped, and an air slit 602 is formed at the top of the valve lip 6. External air enters the air inlet channel 5 inside the sealing plug 4 through the air inlet hole 3, and is then transported to the interior of the valve lip 6 at the top of the sealing plug 4 through the air inlet channel 5, finally exiting through the air slit 602 at the top of the valve lip 6.
[0030] like Figure 2 , Figure 3 As shown, a waterproof and breathable membrane 7 is also provided at the bottom of the air inlet 3. The waterproof and breathable membrane can be an existing waterproof and breathable membrane product, which will not be described in detail here. External air needs to pass through the waterproof and breathable membrane 7 before entering the air inlet 3. Therefore, the waterproof and breathable membrane 7 can further enhance the waterproof performance of the air inlet valve. When heating milk, even if the air inlet valve comes into contact with an external water source, water will not enter, thus avoiding contamination of the milk in the bottle.
[0031] like Figure 2 , Figure 3As shown, the valve seat 2 is connected to the bottom outer surface of the bottle body 1. The bottom of the bottle body 1 is provided with a through hole. The sealing plug 4 passes through the through hole at the bottom of the bottle body 1, allowing the valve lip 6 to extend into the interior of the bottle body 1. The diameter of the valve seat 2 should be larger than the outer diameter of the sealing plug 4, so that when the air inlet valve is installed, the upper surface of the valve seat 2 abuts against the bottom of the outer surface of the bottle body 1, ensuring the secure installation of the air inlet valve. Furthermore, the sealing plug 4 passes through the through hole, and the outer diameter of the sealing plug 4 can be equal to or slightly larger than the diameter of the through hole to ensure the sealing performance at the connection position.
[0032] In one embodiment, the bottom of the valve seat 2 is provided with an installation groove, and at least one layer of waterproof and breathable membrane 7 is provided in the installation groove. The waterproof and breathable membrane 7 is coaxially arranged with the air inlet 3, and the diameter of the waterproof and breathable membrane 7 is larger than the aperture of the air inlet 3. Only one layer of waterproof and breathable membrane 7 can be provided in the installation groove to avoid difficulty in air intake through the air inlet. Alternatively, one or more layers of waterproof and breathable membrane 7 can be stacked according to waterproof requirements to improve the waterproof effect. Details are not elaborated here. In a preferred embodiment, the shape and size of the installation groove match the shape and size of the waterproof and breathable membrane 7 to avoid unnecessary gaps between the waterproof and breathable membrane 7 and the installation groove. The connection method between the waterproof and breathable membrane 7 and the installation groove can refer to existing technologies, such as adhesive fixing, heat sealing fixing, self-adhesive fixing, etc., which are not elaborated here.
[0033] like Figure 2 , Figure 3 As shown, in one embodiment, a limiting groove 9 is coaxially provided at the bottom of the bottle body 1, the valve seat 2 is embedded in the limiting groove 9, and the upper surface of the valve seat 2 abuts against the top of the limiting groove 9. Specifically, the shape of the limiting groove 9 matches the outer peripheral shape of the valve seat 2, so that the valve seat 2 is precisely embedded in the limiting groove 9.
[0034] like Figures 2-5 As shown, in one embodiment, a limiting sealing ring 8 is formed on the outer periphery of the top of the sealing plug 4. The limiting sealing ring 8 extends circumferentially along the sealing plug 4 and forms a limiting step surface at the bottom of the limiting sealing ring 8. The limiting step surface abuts against the inner bottom surface of the bottle body 1. Specifically, when the sealing plug 4 is inserted into the through hole, the limiting step surface at the bottom of the limiting sealing ring 8 abuts against the top outer periphery of the inner opening of the through hole, further ensuring the waterproof sealing performance of the inner opening of the through hole, preventing external air or liquid from entering the bottle body 1 through the through hole, and also preventing the milk inside the bottle from flowing out through the through hole. The valve lip 6 is located inside the limiting sealing ring 8.
[0035] The through hole is coaxially disposed within the limiting groove 9, and the height of the through hole is equal to the height difference between the limiting step surface and the upper surface of the valve seat 2. This further ensures that the limiting groove 9 and through hole on the bottle body 1 match the limiting and sealing structures of the air inlet valve, thereby improving the sealing performance at the connection point. In a preferred embodiment, the sealing plug 4, the air inlet hole 3, and the air inlet channel 5 are coaxially disposed, and an air inlet chamber 601 is formed inside the valve lip 6. The air inlet chamber 601 is located directly above the air inlet channel 5, ensuring smooth airflow between the air inlet channel 5 and the valve lip 6.
[0036] In some embodiments, the valve seat 2, sealing plug 4, limiting sealing ring 8, and valve lip 6 are integrally formed. The air intake valve can be an integrally liquid-formed part or an integral part made by other existing integral forming processes, which will not be elaborated here. In a preferred embodiment, the thickness of the valve lip 6 is less than the thickness of the valve seat 2 and sealing plug 4, thereby ensuring the sensitivity of the valve lip 6 in opening and closing.
[0037] like Figure 4 , Figure 5 As shown, this utility model also discloses a baby bottle air inlet valve, including a valve seat 2, wherein an air inlet 3 is provided in the valve seat 2. In a preferred embodiment, the air inlet 3 is coaxial with the valve seat 2. In other embodiments, the air inlet may be eccentrically disposed on the valve seat. A hollow sealing plug 4 is provided on the top of the valve seat 2. An air inlet channel 5 is formed inside the sealing plug 4. The bottom of the air inlet channel 5 communicates with the air inlet 3. A valve lip 6 is also formed on the top of the sealing plug 4. The interior of the valve lip 6 communicates with the air inlet channel 5, and an air gap 602 is formed on the top of the valve lip 6. A waterproof and breathable membrane 7 is also provided at the bottom of the air inlet 3.
[0038] like Figure 4 , Figure 5 As shown, in some embodiments, a limiting sealing ring 8 is also formed on the outer periphery of the top of the sealing plug 4. The limiting sealing ring 8 extends circumferentially along the sealing plug 4, and the valve lip 6 is located inside the limiting sealing ring 8. The valve seat 2, sealing plug 4, limiting sealing ring 8, and valve lip 6 are integrally formed. In a preferred embodiment, the air intake valve is an integrally liquid-formed part. In other embodiments, the air intake valve can also be an integral part made by other existing integral forming processes, which will not be elaborated here. The thickness of the valve lip 6 is preferably less than the thickness of the valve seat 2 and the sealing plug 4, thereby ensuring the sensitivity of the valve lip 6 in opening and closing.
[0039] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.
Claims
1. An anti-colic baby bottle, including the bottle body, characterized in that: An air inlet valve is provided at the bottom of the bottle body. The air inlet valve includes a valve seat with an air inlet hole inside. A hollow sealing plug is provided at the top of the valve seat, and an air inlet channel is formed inside the sealing plug. The bottom of the air inlet channel communicates with the air inlet hole. A valve lip is also formed at the top of the sealing plug, and the interior of the valve lip communicates with the air inlet channel. An air slit is formed at the top of the valve lip. A waterproof and breathable membrane is also provided at the bottom of the air inlet hole. The valve seat is connected to the outer surface of the bottom of the bottle body. A through hole is provided at the bottom of the bottle body. The sealing plug passes through the through hole at the bottom of the bottle body, allowing the valve lip to extend into the interior of the bottle body.
2. The anti-colic baby bottle according to claim 1, characterized in that: The bottom of the valve seat is provided with an installation groove, and at least one waterproof and breathable membrane is provided in the installation groove. The waterproof and breathable membrane is coaxially arranged with the air inlet, and the diameter of the waterproof and breathable membrane is larger than the diameter of the air inlet.
3. The anti-colic baby bottle according to claim 1, characterized in that: The bottom of the bottle is provided with a limiting groove coaxially, the valve seat is embedded in the limiting groove, and the upper surface of the valve seat abuts against the top of the limiting groove.
4. The anti-colic baby bottle according to claim 3, characterized in that: A limiting sealing ring is also formed on the outer periphery of the top of the sealing plug. The limiting sealing ring extends circumferentially along the sealing plug and forms a limiting step surface at the bottom of the limiting sealing ring. The limiting step surface abuts against the inner bottom surface of the bottle body, and the valve lip is located inside the limiting sealing ring.
5. The anti-colic baby bottle according to claim 4, characterized in that: The through hole is coaxially disposed within the limiting groove, and the height of the through hole is equal to the height difference between the limiting step surface and the upper surface of the valve seat.
6. The anti-colic baby bottle according to claim 1, characterized in that: The sealing plug, air inlet, and air inlet channel are coaxially arranged, and an air inlet chamber is formed inside the valve lip, which is located directly above the air inlet channel.
7. The anti-colic baby bottle according to claim 4, characterized in that: The valve seat, sealing plug, limiting sealing ring, and valve lip are integrally formed.
8. The anti-colic baby bottle according to claim 1, characterized in that: The thickness of the valve lip is less than the thickness of the valve seat and the sealing plug.
9. A baby bottle air inlet valve, characterized in that: The device includes a valve seat, an air inlet hole inside the valve seat, a hollow sealing plug on the top of the valve seat, an air inlet channel inside the sealing plug, the bottom of the air inlet channel communicating with the air inlet hole, a valve lip on the top of the sealing plug, the interior of the valve lip communicating with the air inlet channel, and an air slit on the top of the valve lip. A waterproof and breathable membrane is also provided at the bottom of the air inlet hole.
10. The air inlet valve for a baby bottle according to claim 9, characterized in that: A limiting seal ring is also formed on the outer periphery of the top of the sealing plug, the limiting seal ring extends circumferentially along the sealing plug, and the valve lip is located inside the limiting seal ring.