CN1143813C

CN1143813C - Valve cap

Info

Publication number: CN1143813C
Application number: CNB988114771A
Authority: CN
Inventors: 本特・艾普森; 本特·艾普森
Original assignee: Micro Matic AS
Current assignee: Micro Matic AS
Priority date: 1997-11-25
Filing date: 1998-11-19
Publication date: 2004-03-31
Anticipated expiration: 2018-11-19
Also published as: EP1040075A1; WO1999029618A1; CN1279648A; AU1433899A

Abstract

A valve cap (18) serving for securing against unintentional loosening of a double valve (1) mounted on a container (3) serving of storing a liquid. The upper part of the double valve is formed as a basket having a cylinder mantle (9) with a free top edge (10) flushing with the top edge (11) of the connection piece. Along this is formed an outwardly directed bead (14). The valve cap (18) consists of an annular skirt (19) which, at mounting of the valve cap, is pressed in under the bead (14), and an inwardly directed collar (20) which, during this, is made to abut against the top edge (11) of the connection piece (14) and/or the top edge (10) of the cylinder mantle. Thereby, disadvantages are avoided of a coupling (4) belonging to the valve screwing the valve (1) loose of the connection piece (2) so that the pressure gas blows out on the operator or that he is hit by the unscrewed valve (1). The container (3) cannot be used unnoticed for hiding e.g. drugs either.

Description

Valve gap

Technical field

The present invention relates to a kind of valve gear, it comprises an eck part on container, and this container is used for carrying liquid, for example is contained in the beer under the carbon dioxide gas pressure for example, and said eck partly constitutes an outside crimping; One double-purpose valve is installed on the eck part tightly; Wherein, the upper part of double-purpose valve forms a basket shape, it is one to have the cylindrical cover of free top, this free top is concordant basically with the top of eck part, one valve gap is installed on the eck part, to keep the state that tightens up of double-purpose valve, prevent to unscrew unintentionally or dismantle double-purpose valve, valve gap has a ring-type skirt shape part, when valve gap is installed, this ring-type skirt shape partly is pressed on below the crimping, also has an inside straight ring that is installed on the valve, is placed in or nestles up the top of attaching parts and/or cylindrical cover.

Background technology

The container of above-mentioned pattern is mainly as the transfer cask use of the diffusing beverage of splendid attire, for example splendid attire beer, grape wine and soft drink.When using this container, an adaptor union that has a gas feed and a liquid outlet just is installed on valve.When this adaptor union is installed, use spiral shell snapping head usually, adaptor union valve rotation relatively.By pressing down on the handle on the adaptor union, double-purpose valve is opened, and container both was connected with pressure gas source by the gas access, is connected with the liquid bucket nose by liquid outlet again.

For example restaurant and public occasion often have the container that is drained and does not have adaptor union in public places.Empty container is used for collecting medicine sometimes, and after being placed on packaged medicine in the container, the valve that will unload is loaded onto again.In the past, when using container in such a way, took place owing to the guest has drunk the situation that the beer that retains medicine that takes out is from container poisoned.

When mounted, basket shape valve normally utilizes spiral shell snapping head to be screwed into attaching parts.In this course, elastic sealing ring is squeezed between valve and the attaching parts, just can plays sealing function.

The direction that rotatablely moves during the dismounting adaptor union is identical with the hand of rotation of backing out valve from attaching parts.As a result, owing to there being friction between adaptor union that is in coupled condition and the valve, in this course, adaptor union can drive valve, and valve is unscrewed, and unclamps the contact of seal ring.Therefore, make necessary sealing interruption between valve and the attaching parts, pressed gas and the liquid of following will odiously be sprayed onto on the operator's who carries out disassembling section the body.

If do not have anti-safety measure of unloading on the valve of installing, and when also having super large pressure in the container, for the user that valve is screwed down from the threaded connector fully, be a kind of risk.At valve from loosening this of the screw thread of attaching parts constantly, the super large pressure in the container will directive valve and adaptor union, rushes at the operator with sizable power, and the consequence of Mao Xianing is to cause serious personal injury like this.

Two parts of document EP-A-0142966 and GB-A-2117071 disclose a kind of like this valve gap; the tightening state of its protection double-purpose valve; prevent to remove and install unintentionally the double-purpose valve on attaching parts, this attaching parts is installed on the container, and this container is used to be contained in the liquid under the gaseous tension.

In these known valve gaps, each all has a skirt shape part, this skirt shape part wrapped in by wrinkle the attaching parts top outward extending peripheral crimping below, therefore, can protective valve, in order to avoid this valve is disassembled by without permission people.

And valve gap must be quite solid, can sustain by dismounting adaptor union or people without permission to attempt to act on from attaching parts dismounting valve power on the valve gap.Therefore, the cost of valve gap will be very high, particularly when valve gap be to resemble corrosion-resistant steel when making with corrosion resistant material; When the splendid attire drinkable liquid resembled beer or soft drink in the container, valve gap need use corrosion resistant material to make usually.

Another shortcoming of known valve gap is: it can not make the liquid between the crimping that has entered valve gap and attaching parts flow out again.Therefore, can produce corrosion in this zone.

Summary of the invention

The object of the present invention is to provide a kind of at the described valve gap of this paper section of beginning, its low price, firm in structure, its structure is such design-calculated: during adaptor union, valve can not be unscrewed or pull down in dismounting; Perhaps when without permission people dismantles, can not leave the tangible marking that valve is unscrewed or dismantles from attaching parts.

It is a kind of at the described valve gap of this paper section of beginning that another object of the present invention is to provide, and its structure is such design-calculated: the flow of liquid of gathering between the crimping of valve gap and attaching parts is come out.

For realizing purpose of the present invention, the novelty that the present invention obtained and unique characteristics are: on the skirt shape part of valve gap, intermittently form some opening gauffers more or less.

When splendid attire drinkable liquid in the container for example when beer or soft drink, higher corrosion resistant material such as the corrosion-resistant steel of container use cost made usually.This just means that valve gap must use the material of relative thin, thereby reduces the consumption of valve gap material.

The valve gap of relative thin among the present invention, best is to make with such material, promptly the gauffer of the skirt shape of valve gap part plays the effect of reinforced rib, and makes valve possess essential intensity.

In fact, another advantage of valve cover structure is that a plurality of opening gauffers on skirt shape part no longer remain between the crimping of valve gap and attaching parts liquid, therefore, can prevent to produce corrosion in this zone.

Inside straight ring on the valve gap can be more or less extends on the top edge of whole cylindrical cover or its whole inside circumference.Yet importantly, the opening that ring limits should be enough big, can make the adaptor union bonding part pass opening, and engage with the spiral shell snapping head of valve.

When the spiral shell snapping head of valve included inside direct selling handle, valve gap can advantageously be equipped with the latching device of rotation-prevention, thereby valve gap is fixed with respect to valve.

In a most preferred embodiment, valve gap can be made by the metal sheet of relative thin, and latching device can be inside straight projection, this projection is bent each side at each inside direct selling handle of cylindrical cover, thereby, adopt this simple mode, just can prevent that valve gap from rotating relative to valve.

Below dirt accumulates in valve gap, can be respectively between valve gap and attaching parts and valve, place a resilient ring, preferably in advance with resilient ring bonding or sulfuration on valve gap.

Valve gap can seal on attaching parts, also can adopt another kind of mode, and adhesive applicating on valve gap, and is stained with valve gap.

Description of drawings

Below, with reference to accompanying drawing, only by exemplary embodiment, the present invention will be described in more detail, in the accompanying drawing:

Fig. 1 is the top view that expression is used in the valve on the pressure container that is fitted with valve gap of the present invention;

Fig. 2 is the axial sectional side view of the valve gap shown in the presentation graphs 1, and valve gap is fitted on the valve, and this valve is screwed into screw thread and has an outside crimping, and places in the threaded connector on the pressure container.

Fig. 3 represents an identical view, and just valve gap is compacted encases the crimping of attaching parts and a connector is housed;

Fig. 4 is that valve gap is fitted in the lateral plan of the partly cut-away of the amplification on the threaded connector in the expression first embodiment of the present invention.

The specific embodiment

Fig. 1 and 2 represents to be screwed into the valve 1 in the threaded connector 2, but this attaching parts 2 will suppose to be loaded with in the container beer under carbon dioxide gas pressure below on the transport pressure container of splendid attire bulk beverage.

In Fig. 3, valve is installed in the adaptor union 4 that is used to open and close valve, and shown in the figure is that valve is in closed condition.Adaptor union has an inlet 6, by flexible pipe or pipeline (not shown) adaptor union is connected with the carbon dioxide air source (not shown).Adaptor union also has one by tubulose stick harness 7 beer outlet 8, utilizes flexible pipe or pipeline (not shown) that adaptor union is connected with the switch of extracting beer out.

Valve is opened when pushing handle 5 downwards, thereby the cavity above the beer is connected with carbon dioxide air source in container, by being immersed in the standpipe 12 in the beer, beer is connected with bucket nose simultaneously.At this moment, just beer can be squeezed in the stein in public places.

Adaptor union and valve itself are known technologies, do not elaborate at this.

Valve 1 is such pattern: a basket shape is formed on its top, the state of its sidewall cylindrical cover 9, when valve be screwed into the on the resilient ring 13, when between valve 1 and attaching parts 2, forming sealing, the top 10 of valve 1 is concordant basically with the top 11 of attaching parts 2.The top of attaching parts also has an outside crimping 14.

As shown in the figure, on the cylindrical cover 9 of valve, be provided with two inside direct selling handles 15; On adaptor union 4, be provided with two grip jaws 16 with bevelled top side face 17.When mounted connector, the adaptor union that at first will have grip jaw is introduced the basket shape part of valve downwards, rotary connector then, make the inclined surface 17 of grip jaw enter valve pin handle 15 below, by rotation constantly adaptor union is tightened, be fitted in the valve tightly up to adaptor union.

The degree of dip of the inclined surface 17 of grip jaw 16 is so little, becomes self-locking to cause the joint between grip jaw 16 and the pin handle 15.This just means that to pull down the used moment of valve the same big with the used moment of above-mentioned installation valve at least.The dismounting force moment of adaptor union sometimes greater than the situation of unscrewing the required moment of valve under, when the dismounting adaptor union, adaptor union can drive valve, and valve is unscrewed, pressed gas will spray to the operator who is operating simultaneously.If the operator further unscrews valve from attaching parts, valve will rush at the operator with adaptor union, thereby the operator is emitted the danger of being hit and injuring is arranged.

Situation for fear of meeting accident and hurt sb.'s feelings when dismantling adaptor union the following describes and utilizes valve gap 18, the method that the installation site of valve in attaching parts is fixing.

First embodiment of Fig. 1-4 expression valve gap of the present invention.In this embodiment, valve gap is made by the metal sheet of relative thin, preferably resistant material corrosion-resistant steel for example.

Valve gap includes the skirt shape part 19 of dangling, and the skirt shape at the top partly becomes an inside straight ring 20, and it is the top 11 of extend past attaching parts but also the top 10 of passing through the cylindrical cover 9 of valve not only.In Fig. 2, valve gap is depressed on attaching parts and valve.In Fig. 3, skirt shape part also be pressed in attaching parts crimping 14 below.

In unloading process, the adaptor union of this moment can not drive valve again, be because this valve is stopped by valve gap, and this valve gap is by the crimping locking of attaching parts.

If under situation without permission, valve is pulled down and installed, will find that valve gap has been out of shape or does not adorn valve gap, thereby collection there is the situation of medicine etc. in the empty container, just can not be left in the basket at once.

As shown in Figure 1, corresponding in two inside direct selling handles 15 each, valve gap 18 has two inside straight projections 21.In the process of valve gap was installed, projection (tongues) was bent downwardly each the side that wraps in two pin handles, thereby helps preventing that valve gap from rotating with respect to valve.

In the example shown in Fig. 2 and 3, valve gap directly is fixed on attaching parts and the valve.In example shown in Figure 4, below valve gap, also put into an elastic sealing ring 22, with the gap of avoiding may occurring below the valve gap, these gaps can be full of dirt, and this may constitute the hotbed of cultivating the breeding bacterium.For valve gap and seal ring can be installed more easily, can also in advance seal ring be bonded on the valve gap.

Fig. 4 also expresses, and the skirt shape part 19 compacted crimpings 14 that wrapping attaching parts of valve gap form some gauffers 23, and these gauffers play the effect of reinforced rib, are used to strengthen the gripping power of the valve gap under crimping.Gauffer is formed with opening 24, and it flows out the liquid that enters below the valve gap again.

In installation process, can also then valve gap be bonded to rapidly on attaching parts and the valve at the inboard adhesive-applying (not shown) of valve gap.

Claims

1. valve gear comprises:

One eck part (2) on container (3), this container is used for for example beer under carbon dioxide gas pressure of carrying liquid, and said neck finish portion branch is formed with an outside crimping (14);

One double-purpose valve (1), tightly be installed on the eck part, upper part at double-purpose valve forms a basket shape, and this basket shape is one to have the cylindrical cover (9) of free top end edge (10), and this free top end edge is concordant with the tip edge (11) of eck part (2) basically;

One valve gap (18) is installed on the eck part (2), and it keeps the state that tightens up of double-purpose valve, prevent to unscrew unintentionally or dismantle double-purpose valve (1), valve gap (18) has ring-type skirt shape part (19), when valve gap is installed, this ring-type skirt shape partly is pressed on below the crimping (14); And an inside straight ring (20), it is installed on the valve, is placed in or nestles up the top (11 of attaching parts (2) and/or cylindrical cover (9); 10);

It is characterized in that: the skirt shape part (19) of valve gap (18) forms some opening gauffers (23) more or less intermittently.

2. valve gear according to claim 1, the cylindrical cover (9) that it is characterized in that double-purpose valve (1) has an inside direct selling handle (15) at least, it is characterized in that: be formed with two inside straight projections (21) on the valve gap (18) at least, when valve gap is installed, with this projection bending each side at least one inside direct selling handle (15) of cylindrical cover, play the effect of rotation-prevention like this, make valve gap (18) fixing with respect to valve (1).

3. valve gear according to claim 1 is characterized in that: valve gap has an elastic sealing ring (22), and when valve gap was installed, this elastic sealing ring was pressed on respectively between valve gap and attaching parts and the valve together.

4. valve gear according to claim 3 is characterized in that: resilient ring (22) in advance and valve gap link together.

5. according to each described valve gear among the claim 1-4, it is characterized in that: valve gap is made by the sheet metal of relative thin.

6. according to each described valve gear among the claim 1-4, it is characterized in that: at the inboard adhesive-applying of valve gap, when mounted valve gap is bonded on the attaching parts.