BRPI1106157A2 - Easy opening closure valve for bottles - Google Patents

Abstract

EASY OPEN CLOSURE VALVE FOR BOTTLES. The present invention relates to an easy-open valve closure (10) for bottles comprising a stationary portion internal valve (1) that can be installed on a bottle neck and having a valve cap (2) and devices. (22, 23) for sealing at the neck, and an axially movable outer valve portion (11) having a main plate (14) with a valve opening (12) for engagement with the valve cap (2) and a screw cap (13) which is connected to the main plate (14) and which has a female thread (18) of nominal radius r and is in engagement with the male thread (8) of a threaded connecting portion (4) connected to the valve cover (2). To provide a corresponding valve closure, which on the one hand can be used in the usual manner as a push-pull closure and which also fits tightly and sealed to an internal valve portion with the normally occurring agitation but which on the other hand permits simple and quick one-handed opening, it is proposed according to the invention that the screw cap (13) is fixedly connected to a drive lever (16, 15, 16 <39>) which extends radially out of the screw cap (13) so that the lever radius R defined to the radially outer end (15, 16b) of the drive lever (16, 15, 16 <39>) is spaced from the cap screw shaft, which is greater than at least 20% of the nominal r-radius of the female thread (14).

Description

EASY OPEN CLOSURE VALVE FOR BOTTLES

The present invention relates to an easy shut off valve. bottle opening comprising a stationary inner valve portion that can be installed on a bottle neck and having a valve cap and sealing devices on the neck, and an axially movable outer valve portion having a valve opening for engagement with the valve cap and a screw cap which is connected to the valve opening and which has a female thread of a nominal radius r and is engaged with the male thread of a threaded connector portion fixedly connected to the screw cap. valve.

In this regard, the bottle design configuration can be substantially any and the term 'bottle' also includes other loose goods containers, especially for liquids, preferably involving bottles or other plastics containers.

A corresponding valve closure is known in the prior art. Among others so-called "push pull closures" are known, for example, for beverage bottles, which are in principle very similar to the present closure but do not have a thread but where the outer portion of the valve is simply movable by pulling and pushing axially with respect to the inner valve portion where the valve cap and valve opening are correspondingly brought to and from the socket.

In addition, however, a closure is also known in the prior art, in which the outer valve portion is formed by a screw cap which, however, is of a larger diameter. Such closures with a screw cap valve, the screw cap of which it has a relatively large diameter (for example, greater than 25 mm) are used, in particular with respect to bottles with liquid cleaners, where bottles which generally comprise plastic materials can be compressed so that they are thus able to easily measure the amount of liquid emission when the valve is opened.

Plastic bottles with push-pull closures whose outer portion of the valve is smaller in diameter (up to about 20 mm) are used, for example, for household chemicals, but also for beverage bottles, for example for Sports people who carry matching bottles with them, in which case the bottles are frequently exposed to jolts, are possibly carried horizontally and in that case should remain substantially sealed, while otherwise they should be suitable for use. during active participation or performance of a sport such as cycling, running or the like. The sports person is (and wants) to be able to drink from the bottle, so while performing in his sport, pulling the outer portion of the valve axially outward slightly and opening the valve and placing it in his mouth, then delivering drink in the mouth by suction or pressure on the outside of the bottle without the risk of spilling the drink or spraying on the body or clothing of the sports person. In that case, the outer valve portion is fixed to the inner portion such that it cannot be pulled completely out of the inner portion, but is substantially axially returnable only between a closed and an open position.

A disadvantage of all known closures of this type, however, is that it is only very difficult and complicated at least to open the valve with one hand. The valve cover and also the outer portions of the push pull closure are relatively fixed in their closed position so that they are not intentionally thrown under the influence of agitation and some force is required to pull the outer portion of the valve off the cover. or vice versa to pull a valve cap off the valve opening. Both hands are usually required for this purpose. Both opening and closing through the teeth, holding the outer portion of the valve with the teeth and pulling the bottle, is relatively risky and can lead to tooth damage or loss and is practiced by only a few users. In addition, at the best known closure having a screw cap with a valve opening, the bottle must be held firmly with one hand to release the cap by turning it with the other hand in order to open the valve, i.e. It is for turning the screw cap to move it axially so that the main plate of the cap with the central valve opening is detached from a valve cap of the inner portion of the valve.

While opening the beverage bottle with both hands is sometimes uncomfortable, and can also be disadvantageous for other reasons when dealing with other liquids such as household chemicals or cleaning liquids. In particular, the fingers of one hand may then more easily come into contact with such a liquid, which in many cases may cause damage and / or allergies, or in other cases may lead to tampering and contamination of the liquid such as for example, for contact lens cleaning agents that are subject to the risk of germ infestation.

As mentioned earlier the operation of opening bottles of drinks that are intended to be used during a sport or other activity is very annoying, if both hands have to be used as in many types of sport, for example when riding a bicycle, Both hands are not always free, particularly not when, for example, road conditions or other conditions do not allow hands-free cycling. Also, in the case of (long distance) running bringing both hands together on the liquor bottle or closing being able to open it disturbs the pace of operation of the person concerned and is therefore considered harmful.

Therefore, it is desirable to have a corresponding valve closure, which on the one hand can be used in the usual manner as a push and pull closure which also fits tightly and sealed onto a portion of the internal valve with the normally occurring agitation. , but on the other hand allows simple and quick opening with just one hand.

This object is achieved to the extent that on the one hand a corresponding screw cap closure is used where, however, the screw cap in turn is fixedly connected to a drive lever extending radially out of the cap. so that the lever radius R defined by the radially outer end of the drive lever is in a spacing relative to the cap thread axis, which is at least 20% greater than the nominal r radius of the female thread (14) .

In this regard, the screw cap is approximately shaped and the size of the outer valve portions of known push-pull closures and must be of an outer diameter not exceeding 25 mm, preferably not exceeding 20 mm. Corresponding to the nominal diameter 2r of the female thread of the screw cap (and hence also the nominal diameter of the male thread of the threaded connection portion) is relatively small and is typically on the order of 8 to 15, preferably in the region. between 10 and 12 mm. The outer diameter 2R of the screw cap forming the outer portion of the valve that is normally placed in the mouth when drinking such a bottle is therefore of the order of magnitude of between 12 and 18 mm, usually between 14 and 16. mm Note, however, that in contrast to the usual push-pull closure of this screw cap you do not need a radially projecting upper edge which in the case of push-pull closures possibly serve as an exciting aid to be able to exert a proper axial pull. over closing to open the valve.

In contrast to the closure according to the invention axial movement is produced by rotation of the screw cap. Note, however, that the screw cap itself is not taken for that purpose, but rather a drive lever that extends radially out of the screw cap so that the lever radius R is defined to the radially outer end of the lever. is a relative in spacing to the cap thread axis, which is at least 20% greater than the nominal radius r of the female thread. It will be appreciated that the outer end of the lever may still be substantially more spaced relative to the screw cap axis, which is, for example, between two and three times the nominal radius r of the thread, but slightly larger at from the shaft already provides that a greater force may eventually be applied to the screw cap via the lever, than is possible by holding the screw cap which in many cases is soft and small.

According to the invention, therefore, the screw cap has a driving lever in the form of a radial projection, the end of which is radially outer in a greater spacing from the screw cap axis than the peripheral outer surface of the screw cap. Thread that is usually cylindrical or slightly tapered or cylindrical has also intensified and is also at least relatively soft. That the actuation lever may rest, for example, on the upper side of a radial widening of the inner valve portion. Frequently a bottle neck on which such a closure is mounted is of a diameter markedly larger than the axially movable outer valve portion of a push-pull closure and the associated inner portion connecting to the inner portion of the valve. Therefore, under the valve portion connecting the inner portion of the valve usually has a radially markedly enlarged portion with a closing flap forming the transition to the neck further, it is mounted over the bottle neck and makes a sealed connection between the edge of the neck. of the bottle and the inner portion of the valve. Therefore, a suitable lever may, for example, lie over such radial widening, which is typically in the form of an annular disc so that it is better protected from unintended actuation, because it is not merely a loose design of the screw cap of the portion. internal valve. The preferred embodiment in this sense is where the lever is rotatably guided about the screw cap axis in an annular disc of the inner valve portion, which extends around the threaded connecting portion and extends radially and toward to the periphery.

It is also possible for a plurality of levers to be arranged for design in different directions at the same time from the screw cap, for example, in the form of spokes of a wheel, which are preferably distributed in uniform angular spacings around the periphery of. screw cap.

In addition, it is desirable if the radially outer end of the lever or the levers extend in parallel and with a small spacing with respect to an axially extending, radially outer end portion of the inner valve portion. The lever then then extends, for example, from the lower edge of the screw cap along the upper portion of a radial widening of the inner portion of the valve to its slightly extended radially outer edge, and then extends into the Parallel axis downward relationship along the outer widening of the inner valve portion. It is the lever portion that slightly projects the surface of the outer edge of the flare can be easily grasped with one finger, preferably with the thumb, on one side and shifted open while the other fingers of the same hand hold the bottle. It will be appreciated that this assumes that the bottle or a corresponding container below the closure region is of dimensions that make it possible for the bottle or container to actually be held with the fingers of one hand and the ball of the hand or the tip of the thumb, while, for example, the thumb remains free for lever actuation. However, the invention can be used even with regard to bottles or other larger containers as it is sufficient that the bottle remains firmly on the floor or a support surface or possibly can be carried out quickly with a portion of a hand to hold. What he does is not easily rotate with a finger or thumb, which remains free triggers the lock or the lock lever.

Finally, it is also possible for corresponding levers to be attached in spoke form to an extending peripheral ring so that this effectively provides an actuation ring in which the spokes can optionally be replaced by a closed annular disc that connects with the ring. actuation and the most internally eliminated screw cap. However, a few spoke drive ring is preferred as the actuation ring means that the individual spokes or levers are better protected from unintended actuation, the ring gives good stability to the entire actuation element and ultimately The ring requires only little additional material and is also very well suited as an actuation element. In other words, therefore, the radially outer end of the lever is in the form of an actuation ring extending peripherally with a spacing around the screw cap.

Preferably the ratio of the outside diameter D (= 2R) of the actuation ring to the thread diameter d (= 2r) of the screw cap is in the region of between 1.2 and 3 and the corresponding ratios approximately also apply to the ratio. Enter the outer diameter of the actuation ring to the outer diameter of the screw cap which is larger than the screw diameter only by the thickness of the screw cap wall.

Because of the larger diameter of the actuation ring, a step-up transmission lever is effectively rendered to the corresponding order of magnitude for the actuation of the cap screw thread which is of a substantially smaller diameter. It is also possible for such an actuation ring to be arranged, for example, in the region of a neck mouth and approximately the same diameter as the neck mouth so that it is easily accessible while the usual push pull closures including those that are Suitable for being and intended to be placed directly into the mouth for drinking from a container are often back radially to the bottle neck so that even if the bottle is held quickly with one hand in the bottle neck region, it only can be reached with difficulty and grabbed by the fingers of the same hand.

As, however according to the invention there is provided a drive lever or a ring which is of a large diameter or the operating radius and which of such screw cap designs of the outer portion of the valve is relatively easy to hug the bottle, for example, below the actuation ring or near the neck of the bottle by hand, in which case the example thumb points vertically upwards, and then apply the thumb to the outer portion of the actuation ring and transform the drive ring by lateral thumb movements.

It will be appreciated that for this purpose, in a preferred embodiment of the actuation ring invention there is a knurl on the outside which significantly increases friction between the fingers or thumb of a hand and the actuation ring and thus allows the force to be more easily and simply applied to the thumb or finger ring This knurling, however, does not involve the screw cap, making it more suitable for drinking from the bottle.

It is desirable in this regard if the actuation ring, the screw cap and the threaded connecting portion have the same common axis, even if it would be possible in principle for the actuation ring to be eccentric.

As already mentioned, the ratio between drive lever diameter and thread diameter should be of the order of magnitude between 1.2 and 2.5 or 3, but if possible the radius inside the actuation ring should be at least 50. % greater than the thread radius on the screw cap and the threaded connection portion. In one embodiment of the invention, for example, the thread diameter is 12 mm, while the inner diameter of the adjusting ring is about 28 mm and its outer diameter is about 30 mm. That offers an effective lever ratio of almost 2.5, which considerably facilitates one-handed closing actuation.

The sealed fasteners of the inner portion of the valve by neck preferably include a cross-section U-shaped closing tab so that the closing tab embraces the outside, above and inside edge of the neck. Such closing flap including its connection with the inner portion of the valve forms the cylindrical widening of the inner portion of the valve as previously mentioned herein. The inner portion of the valve and in particular the closure flap may by itself have known locking elements cooperate with corresponding bottle neck elements to prevent rotation of the inner portion of the valve relative to the bottle neck.

The actuation lever which is preferably in the form of an actuation ring preferably has its portion extending between the screw cap and its outer end (that portion being specifically the radii) in the upper portion of a radial flare. inner portion of the valve that connects the portion of the connecting valve to the closing tab. The outer end of the lever or in the preferred embodiment the actuation ring in this case encompasses the outer portion of the closing flap and extends substantially parallel to the common axes of the closing portions.

Thus, the outer end of the lever or the actuation ring is oriented on the outer upper shoulder of the closing tab.

Preferably the threaded connector portion and the screw cap should have axial abutment members that limit reproducing the axial movement of the screw cap relative to the threaded connector portion. In particular, both screw cap threads and the threaded connecting portion, more precisely the thread overlap, are of a correspondingly short axially configuration so that they come out of coupling when the screw cap was moved axially so far away that the cap of the The valve and the valve opening are far enough apart to be able to drink straight from the opening, or to be able to press out the liquid. In addition, for example, externally and internally designed balls may be provided on the outer portion of the threaded connection portion and the interior of the screw cap, respectively, which in any event do not allow the screw cap to be pulled axially out of the threaded portion. connection without the application of considerable forces.

Preferably the main elements are respectively provided in an upper portion of the threaded connecting portion and the screw cap, which is of a reduced diameter relative to the nominal thread diameter. In this way the thread can be moved without any problem axially out of the main elements and brought into engagement with the threaded connecting portion.

Other advantages, features and possible uses of the present invention will hereinafter be derived from the description of a preferred embodiment and the associated Figures wherein:

Figure 1 shows an axial section through a preferred embodiment,

Figure 2 shows a plan view of the closure of Figure 1 in an upward axial direction,

Figure 3 shows a section corresponding to the section of Figure 1 to another simplified embodiment, and

Figure 4 shows a top view of the closure shown in Figure 3.

Figure 1 shows an inner valve portion 1 and an outer valve portion 11, each characterized by different hatches. The inner portion of the valve 1 includes a closing flap 7 and a centrally threaded portion 4 which is connected thereto by an annular disc 6 and the wall within which a plurality of members 3 extend radially inwardly; members axially loading upwardly an extended valve plug 2, the upper portion thereof being in the form of an upwardly closed cylinder.

The threaded connector portion 4 in turn has a narrowed upper fastening portion 4a and a threaded lower portion 4b which is slightly radially enlarged with respect to the fastening portion 4a. The small diameter of the fastening portion 4a, near its upper end, has an externally projected edge 9, which serves as an axial abutment element for a radially interior projecting fastening edge 19 within the screw cap. The fastening portion 4a and its edge 9 are of such size relative to the threaded portion 4b with the thread 8 whether the inside diameter of the female thread 18 of the screw cap 13 is at least as large as the outside diameter of the edge 9, while the projecting free inner diameter of the fastening edge 19 within the upper portion of the screw cap should obviously be smaller than the outer diameter of the edge 9 so that both cords can serve as axial pillar elements that limit the movement clearance of the screw cap with respect to the threaded connection portion 4 or with respect to the entire inner valve portion 1. The cross section of the fastening edge 19 is therefore of a somewhat flattened configuration, i.e., its smallest The flank includes a small angle with the shaft 20 of the closure than the upper flank so that it can be admittedly had surpassed the edge 9 for mounting purposes in the axial direction. a slight expansion of the compression cap portion 13 and the threaded connection portion 4 in the edge region 9, and then locking behind the edge 9. The release of the movement of the screw cap is limited downward in the axial direction. inner ally by placing the main plate of the screw cap 13 on the upper edge of the threaded connector portion or also by the lower end of the screw cap 13 being applied the radial widening of the inner portion of the valve 1.

The lower end of the threaded connecting portion 4 is delimited by a radially and peripherally extending annular disc 6 connecting the lower end of the threaded connecting portion 4 to the closing tabs 7 which is of U-shaped cross-section. U-shape surrounds the upper edge of a corresponding bottle neck that is not shown here and the outer U-shaped member has a projecting inner edge of attachment 22 and the inner member of the closing tab to an externally designed sealing edge 23 which seals into the inner surface of a bottle neck (not shown). At the same time the annular disc 6 also forms the cross section of the U-shaped portion joining the inner and outer U-members.

The outer portion of valve 11 substantially comprises a screw cap 13 with a female thread 18, wherein that female segment 18 is 10.

15

supplied only with the lower portion of the screw cap 13 and preferably if

extends at most over the lower half of the screw cap 13 as well as a

drive ring 15 connected to screw cap 13 by means of spokes 16. A

upper portion of the screw cap is of a somewhat radially configuration

narrowed with respect to the lower portion which is basically advantageous for reasons

of material savings but on the other hand is not absolutely

only as long as the female thread of 18 the lower portion of the cap

The thread size is of an inner diameter larger than the outer diameter of the edge 9 in the threaded connection portion 4.

The screw cap 13 in turn has a main plate 14 which is slightly domed in its central region and in the central region also has an opening valve 12 which in the closed condition receives the valve cap 2 in proper sealing relationship. . In addition, extending in the axial direction of the main plate 14, there is also a peripherally extended sealing ring 24 which interacts with the inner surface of the fastening portion 4a of the threaded connecting portion 4 in order to completely seal the screw cap. 13 with respect to the threaded connection portion 4 in the closed condition and generally to prevent liquid from escaping through the thread.

In the embodiment having the lower end of the screw cap 13 is

connected by three radii of 16 to an outer actuation ring 15 which is

in the L-shaped cross section where a smaller member of the L-shaped

L rests on the annular discs 6 of the inner closing portion and one

axial member extends parallel to the outer member of the closing flap 7 and

substantially supports the opposite, ie the inner diameter of the axial member

The actuation ring 15 substantially corresponds to the outer diameter of the closing tab.

Also, as can be seen clearly in particular from Figure

2, the actuation ring on its exterior has a knurl 17 which facilitates the

Lock acting holding with just one finger or thumb of one hand.

Turning the actuation ring in the open direction also involves transmitting a corresponding force by means of radius 16 to the screw cap 13 so that, because of the female threaded engagement of the screw cap with the male thread of the threaded portion of connection 5, cover the screw Along with the drive ring 15) it is moved upwards in the axial direction until the threads snap out, in which case, in addition to the pillar elements 9,

20

25

35 prevent further axial movement of the screw relative to the cap 13 the threaded connecting portion 5.

In that case, the main plate 18 is also moved upward with the screw cap 13 and as a result the valve cap 5 comes out of engagement with the valve opening 12 so that liquid can now emit through that valve opening when the Matching container or bottle is turned over and / or under external pressure.

Desirably the length of the axial member of the drive ring is greater than the axial movement clearance of the screw cap 13 with respect to the threaded connection portion 4, which is defined by the abutment elements described above, the axial thread extension and cap placement annular disc 6 or the upper edge of the threaded connecting portion 4.

When the screw cap is bolted by action onto the drive ring 15 in order to close threads on the screw cap and the threaded connection portion engages again, in which case the screw cap moves axially downward so that finally valve cover 2 slide back to shut-off valve 12 and close sealed.

Thus a closure is provided which in its function substantially corresponds to the so-called push-pull closure but has a screw cap

which is operable with only one hand, by virtue of the drive lever provided.

Figures 3 and 4 show further embodiment, even if not absolutely preferred. In a similar variant (not shown here), instead of an actuation ring, there is only one drive lever 16 'extending only to one side of the screw cap 13 and substantially corresponding to one of the 16 radii in relative to a small portion of the drive ring 15 in Figure 3, where the 'spoke' or lever 16 'is only slightly more stable to increase its stability. In the embodiment in Figures 3 and 4 there are in each case three arms 16 such as 120 ° angular spacing.

The mode of operation of such closure is substantially the same as that of the embodiment described with reference to Figures 1 and 2. Also here, it is possible, for example, to hold a bottle or other container with one hand and in doing so still leave the thumb of the same free hand and pointing upwards, so that the outer end of lever 16 'can be engaged with the thumb and moved in the direction of opening or closing respectively. If only such a 16 'lever is, since it will be appreciated, however, that there is the disadvantage that for the situation where rotation of, for example, much more than 120 ° is required to open the closing, the hand has to be turned on again with respect to the bottle and therefore it is necessary once again to change the grip to be able to turn the lever 16 'far enough away.

In an alternative embodiment, therefore, for example, it would be possible to provide two diametrically opposed levers 16 'or, as shown in the case of Figures 3 and 4, also three (or more) corresponding levers 16' which could substantially correspond to the 16 radii of the embodiment shown in Figure 2 and that with its free end design beyond the outer edge of the closure, as shown in both the section in Figure 3 and also in the plan view of Figure 4. In this case it is possible to reach the next lever 16 'after rotation of the closure by a corresponding angle.

Even if such a design configuration is easily possible and basically also possible, however incorporation with an actuation ring as shown in Figures 1 and 2 is preferred.

In particular, the preferred embodiment with the actuation ring also allows for the easy organization of tamper-resistant fasteners such as a conventional cutting strip.

For example, a tamper-proof band may be arranged under the actuation ring and may be connected to the actuation ring via a weakening line. The tamper-proof seal can be secured against rotating movement, for example by interlocking the knurl on the bottle neck and tamper-proof band so that it has to be removed first if before or the adjusting ring is rotated.

For purposes of the original disclosure it is noted that all features as can be seen by a skilled man in the art of the present disclosure, the drawings and claims, even if they are described in specific terms only in connection with some other features, may be combined both individually and in any combination with others of the features or groups of features disclosed herein insofar as not expressly excluded or technical aspects make such combinations impossible or meaningless. Comprehensive explicit representation of all possible combinations of features and emphasis on the independence of the individual characteristics of each other is provided here only for the sake of brevity and readability of the description.

Claims (18)

1. Easy-open closing valve (10) for bottles, characterized in that it comprises a stationary internal valve portion (1) which can be installed in a bottle neck and which has a valve cap (2) and device (22, 23) for sealed attachment to the bottle neck, and an axially movable valve portion (11) having a main plate (14) with a valve opening (12) for engagement with the valve cap (2) and a screw cap (13) which is connected to the main plate (14) and which has a female thread (18) of nominal radius r and is engaged with the male thread (8) of a threaded connector portion (4). securely attached to the valve cap (2), the screw cap (13) being fixedly connected to a drive lever (16, 15, 16 ') which extends radially out of the screw cap (13) that the radius R lever is defined to the radially outer end (15, 16b) of the drive lever (16, 15; 16 ') is spaced relative to the cap thread axis, which is at least 20% larger than the nominal radius r of the female thread (14). Shut-off valve according to claim 1, characterized in that the lever is rotatably guided on the screw cap shaft (20) in an annular disc (6) of the inner portion of the valve (1) which is extends around relative to the threaded connecting portion (5) and extends radially and toward the periphery. Shut-off valve according to one of the preceding claims, characterized in that a plurality of levers (16 ') are arranged and distributed in preferably uniform angular spacings around the periphery of the screw cap. Shut-off valve according to one of the preceding claims, characterized in that the radially outer end (16b) of the lever (16 ') or the levers extend in parallel and with a small spacing with respect to a portion of one. axially extending, radially outer end of the inner portion of the valve. Shut-off valve according to one of the preceding claims, characterized in that the radially outer end of the lever (16b) or the levers is in the form of a drive ring (15) extending in a spacing around the screw cap. Shut-off valve according to one of the preceding claims, characterized in that the actuation ring (15), the screw cap (13) and the threaded connection portion (4) have the same common axis (20). ). Shut-off valve according to one of the preceding claims, characterized in that the lever radius R is greater than at least 20%, preferably at least 50%, than the screw radius r of the screw cap. (13) and the threaded connection portions (4). Shut-off valve according to one of the preceding claims, characterized in that the lever radius R is at least about twice greater than the radius r of the screw thread of the lid and the threaded connecting portion. Shut-off valve according to one of the preceding claims, characterized in that the lever radius R is a maximum of ten times the radius r of the cap screw thread and the threaded connection portion. Closure valve according to one of the preceding claims, characterized in that the sealed fastening devices (22, 23) in the neck of the vial have a U-shaped cross-section closure flap (7). Shut-off valve according to one of the preceding claims, characterized in that the outer end of the lever (16 ') or the levers (16'), in particular in the form of a drive ring (15), is seated. on the outside shoulder of a closing flap (7) which embraces the upper edge of the U-shaped bottle neck at the cross section. Shut-off valve according to one of the preceding claims, characterized in that the actuation ring (15) has a knurl (17) on its radially outer side. Shut-off valve according to one of the preceding claims, characterized in that the actuation ring (15) is connected to the screw cap (13) by means of a plurality of radius levers (16). Shut-off valve according to one of the preceding claims, characterized in that the valve opening (12) is provided in the center of a main plate (14) of the screw cap (13) and as the valve cap. (2) concentrically in relation to the axis (20). Shut-off valve according to one of the preceding claims, characterized in that the connecting threaded portion (5) and the screw cap (13) have axial abutment elements (9, 19) which limit the reproduction of movement. axia! screw cap (13) relative to the threaded connection portion (5). Shut-off valve according to one of the preceding claims, characterized in that the abutment elements (9, 19) are respectively provided in an upper portion of the connecting threaded portion and the screw cap which is reduced in diameter to the nominal diameter (2r) of the thread. Shut-off valve according to one of the preceding claims, characterized in that it has a tamper-evident seal arranged on the adjusting ring, which is of a visibly altered condition after actuation of the first actuation ring. Shut-off valve according to one of the preceding claims, characterized in that the tamper-evident seal comprises a cut-off strip connected to the lower edge of the actuation ring by one or more easily tearable elements which tear after rotation of the actuation. ring so that the cutting strip is visibly released from the actuation ring.