KR20150010501A - Bottle for baby - Google Patents

Abstract

The present invention relates to a baby bottle comprising a feeding bottle body made of hard material, and more specifically, to a baby feeding bottle which prevents interference by use of an infant or a feeder and smoothly operates a valve by forming a valve structure of elastomer material for the influx of external air on the top of a bottle body such as a part in which a screw is formed, has no problem of fastening when fastening the screw even if the valve is equipped on the screw, and smoothly operates the valve and increases convenience of use by a structure which can prevent damage of the valve when washing. The bottom comprises: a bottle body having a content accommodating space, where an upper end is opened; a discharging body arranged on the upper end of the bottle body and discharging the accommodated contents; and a fastening ring to fasten the bottle body and the discharging body. The valve of elastomer material for the influx of the external air is equipped on the top of the bottle body. The bottle body in which the valve is equipped is made of hard material. Also, the valve is formed on a screw unit formed on the bottle body to be fastened with the fastening ring.

Description

BOTTLE FOR BABY

The present invention relates to a beverage bottle for infants, and more particularly, to a beverage bottle made of a hard material such as plastic, glass, or ceramics, which is provided with an elastomeric valve for introducing outside air, It is possible to smoothly perform the operation of the valve by preventing the interference by the use of infant or breastfeeder by installing it on the upper part of the main body. Even if the valve is provided in the screw part by the unique structure of the present invention, The present invention relates to a bottle for infant drinks, which can prevent valve breakage when using a beverage bottle including cleaning, and can eventually ensure smooth and stable valve operation.

As you know, bottles are used to feed formula milk for breastfeeding, which is necessary for the growth of newborns and infants.

The bottle generally comprises a body in which powdered milk is stored, a nipple provided with the nipple, and a fastening means (fastening ring) for fastening the body and the nipple.

The body is made of material or glass, and the nipple is made of a transparent plastic (synthetic resin, recent Tritan, PP, or PPSU synthetic resin material is proposed) (The silicone is preferable because of the risk of leakage of environmental hormones), and the fastening means, that is, the fastening ring is screwed on the outer peripheral edge of the upper part of the main body with the nipple coupled body so as to press the nipple on the upper part of the main body And is brought into close contact.

And once used, the bottle may breed bacteria, boil it in boiling water, sterilize it, and prevent the baby from infecting the infant through the bottle.

On the other hand, in the case of infant feeding bottles, how to solve the colic, how to prevent the colic, and the structure to prevent such colic, And,

This problem of colic can be solved by allowing the infant to smoothly introduce outside air into the bottle body when the baby is sucking the bottle.

In other words, when the infant uses milk bottle, the nipple portion of the nipple is sucked into the mouth, and then the milk powder is drawn into the hole provided at the tip of the nipple.

As the powdered milk is drawn out, air inside the body is sucked together, so that the powdered milk is relatively easily drawn out at the beginning, but the pressure inside the body becomes lower as the body becomes less and the powdered milk becomes difficult to be drawn out. The mouth is removed from the nipple, If you do not put it in, the inner part of the nipple will get caught up with each other and the contents, ie the milk powder will no longer be drawn out.

The infant using the actual infant bottle sucks the nipple until the milk powder is not drawn out. When the contents are no longer drawn out, the infant repeats the action of releasing the mouth from the nipple.

As such, as the infant continues to suck his nipple, there is a risk of otitis media, and air enters the body through the nipple hole, so there is a danger that the milk powder will oxidize as a result of bubbles, and furthermore, As a result of repeating the action, the air is also consumed together, causing a colic called infant abdominal pain

It is important that infant feeding bottles have such a colic prevention system, that is, how to efficiently introduce outside air. Also, introducing such a colic prevention system, It is the biggest issue.

In this regard, the anti-colic system employed in conventional bottles has a ventilation hole formed in a part of the nipple to allow the air to always enter the body, but in this case, the air is always circulated inside the body so that the infant does not suck the nipple The problem is that the contents are drawn out regardless of the infant's intention, and even if the infant sucks the nipple, the contents may flow into the airway.

In this regard, a bottle having a venting valve in the bottle body has been introduced, and a bottle for infant is disclosed in Registration Utility Model No. 20-0455573 (Sep. 5, 2011).

The registered utility model No. 20-0455573 includes a triangular hermetically sealed portion having a tip at its upper end, a first protruding ring provided at the lower end of the outer periphery, and a cylindrical vent valve provided with a connection groove between the second protruding ring, And is provided in a connection hole formed in the main body.

In the case of Registration Practical Utility Model No. 20-0455573, although it is intended to facilitate the operation of air inflow while simplifying the production of bottle, as well as to facilitate cleaning and sanitation,

The ventilation valve structure disclosed in the Utility Model No. 20-0455573 is limited to the user's cleaning and hygienic management and the valve may be damaged during frequent assembly of the user.

In addition, although the description has been given only to a bottle, the infant having a certain number of months will use a beverage bottle that drinks water or juice in addition to the bottle. In this beverage bottle, Of course,

Conventionally, the ventilation system of the beverage bottles has a problem that the number of parts is increased for the ventilation system, the assembly process is difficult, and the cleaning is troublesome.

Accordingly, it is an object of the present invention to provide a bottle for infants which is easy to carry out cleaning and hygiene while smoothly operating a ventilation system to be solved by a baby bottle including a baby bottle including a conventional baby bottle 20-0455573 There is a first purpose.

That is, in the case of the infant bottle according to the present invention, a structure in which the valve can be stably provided at a portion where no exposure is made at the time of using the infant (that is, a portion where the beverage bottle body and the tightening ring are combined) The present invention is directed to provide a bottle for infant which can be expected to have a stable ventilation system because the user is not exposed directly to the user.

It is another object of the present invention to provide a beverage bottle which can be stably mounted without causing damage to the valve in the fastening ring of the fastening ring to the beverage bottle main body and preventing the valve from falling into the beverage bottle main body.

In the case of the valve used in the infant bottle of the present invention, the air inflow portion is prevented from being directly exposed, thereby minimizing the valve damage in the cleaning and the like. Even if the valve is installed in the bottle main body, The object of the present invention is to provide a bottle which employs a valve (so-called independent valve) of a structure which can be independently performed independently of a skew.

Another object of the present invention is to provide a bottle for infants which can simplify the valve structure itself and can provide a smooth ventilation system for infant drinks bottles.

According to an aspect of the present invention, there is provided a beverage bottle for infants,

And a discharge member for discharging the contents accommodated in the upper end of the beverage bottle main body and for coupling between the beverage bottle main body and the discharge member, And a fastening ring formed thereon,

Wherein the beverage bottle main body is fitted with an elastomeric valve for inflow of outside air, the beverage bottle main body to which the valve is mounted is made of a hard material, and the valve is connected to the beverage bottle main body for fastening with the fastening ring And is provided in the formed screw portion.

The screw part includes a fastening screw protruding from the upper part of the beverage bottle body for screw connection with the fastening ring and a cut part in which the fastening screw is not formed,

The valve is formed in the cut-off portion to prevent interference from the corresponding screw when the fastening ring is engaged with the screw portion.

Further, the corresponding screw is formed on the inner circumferential surface of the fastening ring in a single line.

Further,

An extension flange extending outwardly from a lower end of the valve body; a guide connected to the extension flange to surround the valve body and a guide extending from the guide or the extension flange or both of the guide flange and the extension flange; And a coupling portion formed for connection with the beverage bottle main body.

The coupling portion may include a first coupling portion connected to the guide or the extension flange or both of them, and a second coupling portion connected to the first coupling portion and protruding outwardly,

The second engagement portion prevents the valve mounted on the beverage bottle body from departing with the engagement portion formed on the guide,

Wherein the beverage bottle body is provided with a first engagement hole into which the first engagement portion is inserted and a second engagement hole into which the second engagement portion is inserted, wherein a height of the second engagement hole is equal to or larger than a height of the second engagement portion, .

In addition, in the beverage bottle according to the present invention, the screw part of the beverage bottle main body is provided with a fastening hole for valve tightening and an inflow hole for air inflow,

The valve is characterized by comprising a fastening shaft to be inserted into the fastening hole, a fastening part formed at one end of the fastening shaft and hooked to the beverage bottle body, and a valve membrane formed at the other end of the fastening shaft and covering the inflow hole.

Further, the fastening shaft is formed with a space portion which is recessed inward from a fastening shaft end portion connected to the fastening portion for easy separation of the valve to the beverage bottle body.

According to the beverage bottle of the present invention having the above-described configuration,

A valve is provided in the screw portion of the beverage bottle main body which is not visually exposed when the beverage bottle of infants is used, so that contact of the infant can be minimized,

Even if a valve is provided in the screw portion, it is possible to prevent the valve from being detached when the beverage bottle body and the fastening ring are screwed together,

Further, even when the beverage bottle is frequently cleaned, it is possible to prevent the valve breakage, so that the convenience of use and the stability of use can be expected.

In addition, the valve body is designed to be connected to the guide through the extension flange, so that the valve body can be independently operated through the expansion flange even if the guide and the engagement portion are not correctly fitted to the bottle body, Can be obtained.

The valve mounted on the beverage bottle main body can be provided with a valve made of only a fastening shaft for fastening the thin valve film and the beverage bottle main body to each other so that the infant bottle can be easily manufactured, And the like,

Furthermore, the space can be introduced into the fastening shaft, so that the user can easily attach and detach the valve.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a bottle for infants according to the present invention. Fig.
Fig. 2 is a view showing a specific structure including a valve of the infant bottle shown in Fig. 1. Fig.
Fig. 3 is a view showing a valve of the infant bottle shown in Fig. 1; Fig.
Fig. 4 is a view showing a baby bottle for a second embodiment according to the present invention. Fig.
FIG. 5 is a view showing a third embodiment infant bottle according to the present invention, including a valve. FIG.
Fig. 6 is a view showing a valve of the infant bottle shown in Fig. 5; Fig.
Fig. 7 is a view showing an operational relationship of the valve of the infant bottle shown in Fig. 5; Fig.
FIG. 8 illustrates a fourth embodiment infant bottle according to the present invention, which is a view showing a concrete structure including a valve. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a baby bottle according to the present invention will be described in detail with reference to the drawings.

For reference, the infant bottle according to the present invention collectively refers to all beverage bottles having a ventilation system used by infants, and bottles are the most representative. Accordingly, the beverage bottle is shown in the form of a bottle as shown in the drawings. Hereinafter, the beverage bottle is referred to as a bottle, and the present invention will be described below.

FIG. 1 is a view showing a baby bottle in a state in which a valve is mounted. In the case of a baby bottle according to the present invention, a baby is not visually exposed even when a valve is attached, (See A in Fig. 1).

Particularly, when the valve is mounted on the bottom surface of the bottle body as in the Utility Model Registration No. 20-0455573 mentioned in the prior art, infants visually recognize the valve easily so that the danger of the valve breakage and thus the milk powder leakage is predicted However,

In addition, when the bottle is stored, the bottom surface of the bottle may be easily collected, considering that the bottom surface of the bottle is washed and then turned upside down. If the user feeds the infant powdered milk immediately without shaking such dust, And the infant is inhaled through the valve as it is. The hygienic and safety problems are predicted.

Meanwhile, in order to solve the above problem, even if the valve is installed around the bottle neck, that is, the screw part, unlike the position shown in the drawing of the Utility Model Registration No. 20-0455573

In the valve structure and the screw part structure disclosed in the Utility Model Registration No. 20-0455573, there is a risk that the screw is engaged and the valve is separated or broken.

The valve structure disclosed in the Utility Model Registration No. 20-0455573 is not a so-called independent valve structure, and therefore, there is a structure in which the valve can not be smoothly operated due to the influence of the mistake of valve fastening to the bottle body.

For reference, the independent valve referred to in the present invention refers to a valve structure that does not affect the valve function (air inflow) even if the valve is slightly twisted when assembling the valve to the bottle body. Unlike the utility model registration No. 20-0455573, the valve of the baby bottle is characterized by the independent valve structure.

1 and 2, a baby bottle according to the present invention comprises:

A bottle body (B) provided with a contents receiving space and having an upper end opened; a discharge member (that is, a discharge member) for discharging the contents accommodated in the upper part of the bottle body (that is, a drink such as water, milk powder, juice, (N), a fastening ring (C) for fastening between the bottle body and the discharge body, and a valve (V) mounted on the bottle body for external air inflow.

Preferably, the bottle main body is made of a hard material and the valve is made of an elastomeric material. Preferably, the elastomer material is silicone having no risk of environmental hormones, and the hard material is PP , PPSU. And plastic materials such as a tritan, a glass material, and a porcelain material.

Preferably, the valve V is mounted on the bottle main body as described above, and more preferably, it is mounted on the screw portion Bs formed on the bottle main body which is not exposed at all when the bottle is used.

That is, in the case of the bottle bottle main body B, a screw portion Bs for fastening with the fastening ring is formed on the outer circumferential surface of the upper end of the body, and the inner circumferential surface of the fastening ring C is provided with the screw portion and the corresponding screw portion Cs) is formed between the bottle body and the fastening ring,

Since the valve (V) is located at the fastening portion, the visual exposure of the valve can be prevented when the bottle is used.

More specifically, the screw portion Bs includes a fastening screw S1 protruding from the upper part of the bottle body for fastening the fastening ring to the fastening ring C and a fastening portion S2 without fastening screw, It is preferable that the valve V is formed in the cut-off portion S2 so as not to be interfered by the corresponding screw Cs when the fastening ring is fastened to the screw portion.

That is, when the valve V is mounted in the position where the corresponding screw Cs is located when the fastening ring of the screw portion is fastened to the screw portion, the protrusion of the corresponding screw presses the valve and the valve may fall into the bottle body (Especially this is a more probable problem for the second type valve described below).

Therefore, in the present invention, the screw portion Bs formed on the bottle body includes the cut-off portion S2 where the fastening screw portion S1 is not formed. In the following fastening screw of the fastening screw which is disconnected once, It is preferable that the bottle is formed so as to be inclined at a high point starting from a low point of the bottle body to be formed (see Fig. 2)

The corresponding screws Cs are formed on the inner circumferential surface of the fastening ring so as not to be formed along the entire inner circumferential surface,

It is preferable that the corresponding screw (Cs) is not located in the cut portion (S2) when the fastening ring is screwed to the screw portion.

As a result, as shown in the figure, the position of the valve V for this purpose or effect is preferably a cut-off portion S2 in which the fastening screw S1 is not formed, and the cut- It is common to refer to all the positions where the fastening screw does not pass in the main body, so that the valve mounting in the same position as in Fig. 2D (i.e., the lower part at the point where the fastening screw is located at the high point of the bottle main body) .

Further, as shown in FIG. 8, mounting of the valve V to the position where the fastening screw S1 is assumed to be virtual can be considered in the broken part S2 as well.

That is, the position where the fastening screw S1 is actually formed and the position formed when the connection is virtually established are the same as the portion where the corresponding screw Cs does not pass when the fastening ring and the beverage bottle body are fastened (protruded corresponding screw Cs) This is because it does not affect the valve mounting because it is the part where the depressed part passes.

As shown in FIGS. 1 and 2, the bottleneck body B is generally formed with a bottleneck portion Bn which is formed inward and formed with a screw portion Bs in the bottle neck portion.

However, due to the formation of the bottleneck, inconvenience is caused by the curved portion in the subsequent bottle cleaning, so that the bottleneck type in which the bottleneck structure itself is not introduced as shown in Fig. 4 can be considered. Also in this case, a screw part Bs for fastening with the fastening ring is provided on the bottle body, and the valve V is mounted on the screw part.

As shown in FIG. 4, in the bottle body in which the bottleneck is not introduced, that is, in the case of the bottle body extending straight in the longitudinal direction, the bottle can be easily cleaned as compared with the bottle body having the bottleneck.

Next, the valve (V) mounted on the bottle body of the present invention will be described.

The valve V according to the present invention can be considered as two types as shown in Figs. 1 to 3 and 5 to 8,

Both types have in common that they are mounted on the screw portion of the bottle body to provide a stable and smooth ventilation system.

The valve V shown in Figs. 1 to 3 is a valve (see A and B in Fig. 2 in particular) in which external air is introduced into the autonomous structure using an elastomer material through a cutout 10a formed at the upper end of the valve, The valve V shown in FIGS. 5 to 8 is configured such that when the infant sucks a bottle, that is, when the infant is lifted up, the inflow hole 72 covering the valve membrane is exposed, (See A and B in Figure 5 in particular).

Referring first to Figures 1-3,

The valve V according to the present invention includes a valve body 10 having an incision 10a for air inflow on the upper surface thereof, an expansion flange 20 extending outward from the lower end of the valve body, A guide 30 connected to the outer periphery of the valve body, and a coupling part 40 for mounting the valve to the bottle body.

Although the valve body is shown as a truncated cone shape (i.e., a truncated cone shape), it is possible to use a cone or a cylindrical shape in which the incision part is provided at the upper end.

And the expansion flange 20 allows the valve according to the present invention to function as an independent valve,

The valve body 10 is not directly connected to the guide but connected to the guide 30 through the expansion flange 20 and the coupling portion 40 is connected from the guide or the extension flange. Can function as a so-called independent valve independently of the engagement state of the guide or the engaging portion with respect to the bottle body.

In other words, since the valve body 10 is not directly connected to the guide or the coupling portion, the valve body is not affected by the valve body when the valve body is assembled with the valve, Air inflow occurs.

In the valve of the present invention, since the guide 30 is provided, the valve can be prevented from being directly exposed to the inside of the bottle body, thereby preventing the valve from being damaged even when cleaning the inside of the bottle body with the cleaning brush.

2 and 3, it is preferable that the guide has a triangular cross-section, and among the triangles, the guide exposed surface 30a exposed to the opposite side of the valve is inclined, (Inserted or withdrawn), as well as to effectively protect the valve through the angled exposed surface 30a during bottle washing.

The guide 30 can be provided with a latching part 62 at an end position by the inclined guide structure and the latching part 62 can be inserted into the engaging part 40 42) to couple the valve to the bottle body.

The coupling part 40 is connected to the guide 30 or the expansion flange 20 or both of the guide 30 and the expansion flange 20,

The engaging portion 40 includes a first engaging portion 41 connected to the guide or the extension flange or both of them, and a second engaging portion 42 connected to the first engaging portion and protruding outward.

In addition, a coupling hole (50) for valve mounting is formed in the bottle body (particularly the screw portion (Bs)). The coupling hole has a first coupling hole (51) in which the first coupling portion is inserted and a second coupling Hole 52,

The second coupling hole 52 is formed larger in diameter than the first coupling hole 51 and the height T of the second coupling hole is formed to be equal to or larger than the height t of the second coupling portion.

In particular, the height T of the second coupling hole is set so that the valve including the second coupling portion does not protrude outside the bottle when the valve is mounted on the bottle body,

Even if the valve is mounted to the screw portion of the bottle main body through the above structure, the screw does not obstruct the fastening of the screw.

In addition, the second engaging part 42 functions to attach the valve to the bottle body together with the latching part 35 formed on the guide and to prevent the mounted valve from escaping.

Next, a second valve type will be described with reference to Figs. 5 to 7 (the valves disclosed in Fig. 8 are also of the same structure).

First, for the fastening of the valve (V) and air inflow, the bottle body is provided with a fastening hole 71 for valve fastening and an inflow hole 72 for inflow of air around the fastening hole (as will be described below, The hole 72 may be connected to the fastening hole 71 as shown in Fig. 8).

At least one inflow hole may be formed.

The valve (V) according to the present invention may further comprise a coupling shaft (61) inserted into the coupling hole, a coupling part (62) formed at one end of the coupling shaft and engaged with the bottle main body, And a valve membrane (63) covering the hole.

As a result, when the infant sucks the discharge body N, the valve film 63 covering the inflow hole 72 is lifted and the inflow hole is opened, so that outside air is introduced into the bottle body.

Then, when the infant stops sucking, the valve membrane that has been lifted returns to its original position and the inflow hole is closed and the valve is closed.

Further, the valve membrane 63 may be a flat plate, but it may be curved so as to smoothly perform the valve opening / closing operation according to the suction.

It is preferable that the fastening shaft end portion connected to the fastening portion 62 in the fastening shaft 61 forms a space 64 recessed in the end portion.

7, when the valve V is mounted on the bottle main body B, the user can easily pull the valve V from the bottle main body B, The outer wall of the tightening shaft 61 is also slightly moved toward the space portion 64. In this state, the inner surface of the bottle body 62 is pressed against the space portion 64, If the valve is pushed inward, the valve can be easily removed.

As a result, the space portion 64 provides a space for changing the shape of the engaging portion 62 and the fastening protrusion 61 when the valve is attached and detached, thereby facilitating easy attachment and detachment of the valve.

Next, the infant bottle shown in FIG. 8 will be described.

As mentioned above, the valve V adopted in Fig. 8 has the same structure as the valve described in Figs. 5 to 7. The structure of the bottle main body B or the specific bottle bottle main body B is the same as that of the bottle bottle main body B described with reference to Figs. 5 to 7, except that the inflow hole 72, into which the air is introduced, There are only differences in structure.

That is, as shown in FIG. 8, the inflow hole 72 is formed around the fastening hole 71, and is designed to be connected to a part of the fastening hole 71.

Also, as described above, the valve V is mounted at a position where the valve V is formed when the fastening screw S1 is virtually extended among the cut-off portions S2. Of course, And it is sufficient that it does not receive interference from the corresponding screw Cs at the time of fastening with the fastening ring C. [

Since the inflow hole 72 shown in Fig. 8 is designed to be connected to a part of the fastening hole 71,

It is possible to easily attach and detach the valve even if the space portion 64 is not formed in the fastening shaft 61 of the valve V so that the valve structure in which the space portion 64 is not formed can be considered.

While the present invention has been described with reference to the accompanying drawings, it should be understood by those skilled in the art that various changes and modifications may be made by those skilled in the art without departing from the scope of the following claims. And such variations and modifications are to be construed as falling within the scope of protection of the present invention.

Description of the Related Art [0002]
B: bottle bottle body Bs: screw part
S1: fastening screw S2: broken part Cs: corresponding screw
N: exhaust body C: tightening ring V: valve
10: valve body 10a:
20: Extended Flange 30: Guide
40: engaging portion 41: first engaging portion 42; The second coupling portion
50: engaging hole 51: first engaging hole 52: second engaging hole
61: fastening shaft 62:
63: valve membrane 64:
71: fastening ball 72: inflow hole
T: height of the second coupling hole t: height of the second coupling portion

Claims (7)

A beverage bottle main body provided with a contents receiving space and having an upper opening;
A discharge member for discharging the contents accommodated in the upper part of the beverage bottle main body; And
And a fastening ring for coupling between the beverage bottle main body and the discharge body and having a corresponding screw on an inner circumferential surface thereof,
And an elastomeric valve for introducing outside air is mounted on the beverage bottle body,
Wherein the beverage bottle body to which the valve is mounted is made of a hard material,
Wherein the valve is provided in a screw portion formed in the beverage bottle body for fastening with the fastening ring. The method according to claim 1,
Wherein the screw portion includes a fastening screw protruding from an upper portion of the beverage bottle body for fastening the fastening ring to the fastening ring and a fastening portion where the fastening screw is not formed,
Wherein the valve is formed in the cut-off portion to prevent interference from the corresponding screw when the fastening ring is engaged with the screw portion. 3. The method of claim 2,
Wherein the corresponding screw is formed on the inner circumferential surface of the fastening ring singly. The method according to claim 1,
Wherein the valve comprises:
A valve body having an upper surface provided with an incision for inflow of air,
An expansion flange extending outward from a lower end of the valve body,
A guide connected to the expansion flange to surround the valve body,
And a coupling portion formed for connection with the beverage bottle body and connected to the guide or the extension flange or both of them. 5. The method of claim 4,
The coupling portion may include a first coupling portion formed to be connected to the guide or the extension flange or both of them, and a second coupling portion connected to the first coupling portion and protruding outwardly,
The second engagement portion prevents the valve mounted on the beverage bottle body from departing with the engagement portion formed on the guide,
Wherein the beverage bottle body is formed with a first engaging hole into which the first engaging portion is inserted and a second engaging hole into which the second engaging portion is inserted, wherein a height of the second engaging hole is equal to or greater than a height of the second engaging portion Infant drinks bottle. The method according to claim 1,
Wherein the screw portion of the beverage bottle main body is provided with a fastening hole for valve engagement and an inflow hole for air inflow into the main body,
Wherein the valve comprises a fastening shaft to be inserted into the fastening hole, a fastening part formed at one end of the fastening shaft and hooked to the beverage bottle body, and a valve membrane formed at the other end of the fastening shaft and covering the inflow hole bottle. The method according to claim 6,
Wherein the fastening shaft is formed with a space portion which is recessed inward at a fastening shaft end portion connected to the fastening portion for easy separation of the valve with respect to the beverage bottle main body.

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