DE102019101995A1 - Connection device for a gas bottle and method for connecting a gas bottle to a connection line via a connection device - Google Patents

Abstract

Connection device (1) for a gas bottle (2) storing a pressurized fluid, at least comprising a connection line (3) with a valve tappet (4), a holding device (7) which can be pivoted between a first position (5) and a second position (6) ) with a coupling (8), the gas bottle (2) being connectable to the coupling (8) via a threaded receptacle (10) of the coupling (8); When the holding device (7) is pivoted from the first position (5) to the second position (6), the coupling (8) and the gas bottle (2) with the holding device (7) with respect to the connecting line (3) and the valve tappet ( 4) can be pivoted such that the coupling (8) can be displaced in relation to the valve tappet (4) along an axial direction (11) and the valve tappet (4) actuates a valve (12) of the gas bottle (2). In addition, a method for connecting a gas bottle (2) to a connection line (3) via a connection device (1) is proposed.

Description

The invention relates to a connection device for a gas bottle and a method for connecting a gas bottle to a connection line via a connection device.

The connection device is used in particular for connecting a gas bottle to a connection line, so that a fluid (a gas, in particular carbon dioxide) stored in the gas bottle under pressure can be transferred to a container via the connection line. Via the connection device, in particular a liquid stored in the container can be mixed with the fluid, e.g. B. in the context of carbonization of a liquid.

It is known to gas bottles via a thread with the connecting line, for. B. to connect with a pressure reducer. In particular, a valve in the gas bottle is actuated during screwing in, so that a fluid connection is established between the content of the gas bottle and the connecting line. In particular, the fluid can escape via the thread to an environment, since an effective seal between the gas bottle and the connecting line is only created at the end of the screwing process. To prevent such a flow of the fluid through the thread, an elastically deformable seal can be provided between the gas bottle and the connecting line, by means of which a sealing effect is formed before a stop is reached and before the valve is actuated. However, a strong deformation of the seal is required.

The sealing effect of the seal can be further affected by tolerances of the components involved.

From the EP 1 378 484 B1 a coupling for connecting a gas bottle to a gas supply line in a device for carbonating a liquid is known. The liquid is stored in a container which is connected to the gas supply line.

The object of the present invention is to at least partially solve the problems mentioned with reference to the prior art. In particular, a connection device and / or a method for connecting a gas bottle to a connection line via a connection device should be proposed, by means of which the (unwanted) outflow of the fluid can be prevented during the connection process of the gas bottle. In particular, a strong deformation of a seal should be avoided. Furthermore, tolerances of the components involved should have at least a smaller (or even no) influence on the connection process.

A connection device with the features according to claim 1 and a method with the features according to claim 6 contribute to solving these problems. Advantageous further developments are the subject of the dependent claims. The features listed individually in the patent claims can be combined with one another in a technologically sensible manner and can be supplemented by explanatory facts from the description and / or details from the figures, further embodiment variants of the invention being shown.

• • eine Anschlussleitung mit einem Ventilstößel,
• • eine zwischen einer ersten Stellung und einer zweiten Stellung verschwenkbare Haltevorrichtung mit einer Kupplung,

wobei die Gasflasche über eine Gewindeaufnahme der Kupplung mit der Kupplung verbindbar ist. Bei einer Verschwenkung der Haltevorrichtung aus der ersten Stellung hin zur zweiten Stellung sind die Kupplung und die Gasflasche mit der Haltevorrichtung gegenüber der Anschlussleitung und dem Ventilstößel so verschwenkbar, dass die Kupplung gegenüber dem Ventilstößel entlang einer axialen Richtung verlagerbar ist und der Ventilstößel ein Ventil der Gasflasche betätigt und damit eine fluidtechnische Verbindung zwischen der Gasflasche und der Anschlussleitung herstellt.A connection device for a pressurized fluid storage gas bottle is proposed, at least comprehensively

• A connecting line with a valve tappet,
• A holding device with a coupling which can be pivoted between a first position and a second position,

wherein the gas bottle can be connected to the coupling via a threaded receptacle of the coupling. When the holding device is pivoted from the first position to the second position, the coupling and the gas bottle with the holding device can be pivoted relative to the connecting line and the valve tappet in such a way that the coupling can be displaced in an axial direction with respect to the valve tappet and the valve tappet is a valve of the gas bottle actuated and thus creates a fluid connection between the gas bottle and the connecting line.

The connection device is used in particular for connecting a gas bottle to a connection line, so that a fluid stored in the gas bottle under pressure (for example a gas, in particular carbon dioxide) can be transferred into a container via the connection line. In particular, a fluid stored in the container can be mixed with the fluid via the connection device.

The connection line comprises at least one pressure reducer, by means of which a pressure of the fluid can be reduced, so that the fluid can be supplied to the container or the liquid stored therein at a predeterminable pressure.

The valve tappet is arranged in a fixed position relative to the connecting line. The valve lifter is mounted in particular on the connection line. The valve lifter can be displaced with respect to the clutch in particular along an axial direction.

The gas bottle has, in particular, an (external) thread which interacts with a thread receptacle (e.g. internal thread) of the coupling to form a threaded connection.

The coupling is in particular fixedly connected to the holding device.

The first position and the second position differ in particular by an angular amount of at least two angular degrees, in particular between 2 and 20 angular degrees, preferably of at most 10 angular degrees.

When the holding device is pivoted from the first position to the second position, the coupling and the gas bottle are already connected to the holding device in a fixed manner (together and together via the threaded receptacle). Holding device, coupling and gas bottle are pivoted together in relation to the connecting line and the valve tappet in such a way that the coupling is displaced in an axial direction with respect to the valve tappet. As a result of the displacement along the axial direction, the valve tappet connected to the connecting line acts on a valve arranged on the gas bottle. As a result of the displacement of the valve relative to the valve tappet, the valve is opened and a fluid connection between the gas bottle and the connecting line is established.

Here, in particular, it is proposed to first connect the gas bottle to the coupling via the thread. In particular, there is no actuation of the gas bottle valve. A seal between the gas bottle and the coupling can be realized by means of a precisely predeterminable seal which is matched exclusively to the tolerance of the components forming the thread pairing. Only after the fixed connection of the gas bottle and coupling to one another has been made is there a pivoting and movement of the gas bottle and the valve arranged thereon in relation to a valve tappet. At the time the valve is actuated, an effective seal between the gas bottle and the coupling has therefore been formed in each case.

In particular, the valve tappet in the first position is at least partially arranged within the clutch (thus at least partially extends into the clutch along the axial direction or forms an overlap with the clutch in relation to the axial direction). At least the valve tappet (possibly also at least part of the connecting line) is arranged to be pivotable together with the coupling, the coupling being pivotable about a first axis of rotation and the valve tappet about a second axis of rotation arranged parallel but offset to the first axis of rotation.

As a result of the offset of the axes of rotation, a relative path along the axial direction between the gas bottle (or valve, coupling) and valve tappet is possible. The relative path (i.e. the displacement of the coupling relative to the valve tappet along an axial direction as a result of the pivoting starting from the first position into the second position) is in particular the path required to actuate the valve, in particular at least one (1) millimeter, preferably at least two (2) millimeters, particularly preferably between 1 and 5 millimeters.

In particular, a seal is arranged between the coupling and the gas bottle, which can only be compressed along the axial direction by screwing the gas bottle to the coupling (that is, it is not compressed further as a result of the pivoting).

In particular, the connecting line is formed by a pressure reducer, which can reduce the pressure of the fluid when it flows through the pressure reducer.

In particular, the holding device comprises a guide, so that the gas bottle is guided when connected to the coupling and when pivoting with the holding device and the connection between the coupling and the gas bottle is substantially relieved of forces acting transversely to the axial direction. In particular, the gas bottle is relieved of forces to such an extent that damage to the valve can be excluded.

1. a) Bereitstellen der Anschlussvorrichtung, zumindest umfassend eine Anschlussleitung mit einem Ventilstößel, eine zwischen einer ersten Stellung und einer zweiten Stellung verschwenkbare Haltevorrichtung mit einer Kupplung sowie eine Gasflasche, die ein unter Druck stehendes Fluid bevorratet;
2. b) Anordnen der Haltevorrichtung in der zweiten Stellung;
3. c) Verbinden der Gasflasche mit der Kupplung über eine Gewindeaufnahme der Kupplung;
4. d) Verschwenken der Haltevorrichtung zusammen mit der Kupplung und der Gasflasche gegenüber dem Ventilstößel und der Anschlussleitung und Betätigen eines Ventils der Gasflasche durch den Ventilstößel und Herstellen einer fluidtechnischen Verbindung zwischen der Gasflasche und der Anschlussleitung.

A method for connecting a gas bottle to a connection line via a connection device, in particular the connection device described above, is also proposed, at least comprising the following steps:

1. a) providing the connection device, at least comprising a connection line with a valve tappet, a holding device with a coupling, which can be pivoted between a first position and a second position, and a gas bottle which stores a fluid under pressure;
2. b) arranging the holding device in the second position;
3. c) connecting the gas bottle to the coupling via a threaded receptacle of the coupling;
4. d) pivoting the holding device together with the coupling and the gas bottle relative to the valve lifter and the Connection line and actuation of a valve of the gas bottle through the valve tappet and establishing a fluid connection between the gas bottle and the connection line.

In particular, the valve of the gas bottle is closed before step d) (and after step c) and is only actuated in step d) by the valve tappet for establishing the fluidic connection.

In particular, the valve tappet in the first position is arranged at least partially within the clutch, with at least the valve tappet being pivoted together with the clutch in step d), the clutch being rotated about a first axis of rotation and the valve tappet about a second axis parallel but offset to the first axis of rotation Pivot axis is pivoted.

The statements regarding the connection device apply in particular equally to the method and vice versa.

As a precaution, it should be noted that the numerals used here ("first", "second", ...) serve primarily (only) to distinguish between several similar objects, sizes or processes, in particular no dependency and / or sequence of these objects, sizes or dictate processes to each other. If a dependency and / or sequence is necessary, this is explicitly stated here or it obviously results for the person skilled in the art when studying the specifically described configuration. If a component can occur more than once ("at least one"), the description of one of these components can apply equally to all or part of the majority of these components, but this is not mandatory.

• 1: eine Anschlussvorrichtung in einer perspektivischen Ansicht;
• 2: ein Detail der Anschlussvorrichtung nach 1 in einer Seitenansicht im Schnitt;
• 3: die Anschlussvorrichtung nach 1 in der ersten Stellung; und
• 4: die Anschlussvorrichtung nach 3 in der zweiten Stellung.

The invention and the technical environment are explained in more detail below with reference to the accompanying figures. It should be pointed out that the invention is not intended to be limited by the exemplary embodiments mentioned. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and to combine them with other components and findings from the present description. In particular, it should be noted that the figures and in particular the proportions shown are only schematic. Show it:

• 1 : a connection device in a perspective view;
• 2nd : a detail of the connection device according to 1 in a side view in section;
• 3rd : the connection device after 1 in the first position; and
• 4th : the connection device after 3rd in the second position.

1 shows a connection device 1 in a perspective view. 2nd shows a detail of the connection device 1 to 1 in a side view in section. 3rd shows the connection device 1 to 1 in the first position 13 . 4th shows the connection device 1 to 3rd in the second position 14 . The 1 to 4th are described together below.

The connection device 1 includes a connecting cable 3rd with a valve lifter 4th , one between a first position 5 and a second position 6 swiveling holding device 7 with a clutch 8th as well as a gas bottle 2nd which is a pressurized fluid 9 stocked. The gas bottle 2nd is via a thread mount 10th the clutch 8th with the clutch 8th connectable. When the holding device is pivoted 7 from the first position 5 towards the second position 6 are the clutch 4th and the gas bottle 2nd with the holding device 7 opposite the connecting line 3rd and the valve lifter 4th so pivotable that the clutch 8th opposite the valve lifter 4th along an axial direction 11 is displaceable and the valve lifter 4th a valve 12th the gas bottle 2nd actuated and thus a fluid connection between the gas bottle 2nd and the connecting cable 3rd manufactures.

The connecting line 3rd includes a pressure reducer 16 over which a pressure of the fluid 9 can be reduced so that the fluid 9 can be supplied to the container or the liquid stored therein with a predeterminable pressure.

The valve lifter 4th is opposite the connecting cable 3rd arranged stationary. The valve lifter 4th is on the connection line 3rd stored. The valve lifter 4th is opposite the clutch 8th along an axial direction 11 relocatable.

The gas bottle 2nd has in particular an external thread with a threaded receptacle 10th (here an internal thread) of the coupling 8th cooperates to form a threaded connection. The coupling 8th is stationary with the holding device 7 connected.

The first position 5 and the second position 6 differ by an angular amount.

When the holding device is pivoted 7 from the first position 5 towards the second position 6 are the clutch 8th and the gas bottle 2nd already (via the thread holder 10th stationary with each other and together) with the holding device 7 connected stationary. Holding device 7 , Clutch 8th and gas bottle 2nd are together towards the connecting line 3rd and the valve lifter 4th pivoted so that the clutch 8th opposite the valve lifter 4th along an axial direction 11 is shifted. As a result of the displacement along the axial direction 11 works with the connecting cable 3rd connected valve lifters 4th on one on the gas bottle 2nd arranged valve 12th . As a result of the displacement of the valve 12th opposite the valve lifter 4th becomes the valve 12th opened and a fluid connection between the gas bottle 2nd and the connecting cable 3rd manufactured.

Here is the gas bottle first 2nd with the clutch 8th connected via the thread. The valve is not actuated 12th the gas bottle 2nd . A seal between a gas bottle 2nd and clutch 8th can have a precisely predeterminable seal 15 can be realized, which is matched exclusively to the tolerance of the components forming the thread pairing. Only after establishing the fixed connection of the gas bottle 2nd and clutch 8th the gas bottle is pivoted to one another and moved 2nd and the valve arranged thereon 12th opposite the valve lifter 4th . At the time of valve actuation 12th is the formation of an effective seal between the gas bottle 2nd and clutch 8th in any case.

The valve lifter 4th is in the first position 5 already at least partially within the clutch 8th arranged (thus extends at least in part along the axial direction 11 into the clutch 8th in or forms opposite to the axial direction 11 an overlap with the clutch 8th out). At least the valve lifter 4th (If necessary, at least a part of the connection line 3rd ) is together with the clutch 8th arranged pivotably, the coupling 8th around a first axis of rotation 13 and the valve lifter 4th around a to the first axis of rotation 13 parallel, but offset, arranged second axis of rotation 14 are pivotable.

As a result of the offset of the axes of rotation 13 , 14 is a relative way 18th along the axial direction 11 between gas bottle 2nd (or valve 12th , Clutch 8th ) and valve lifters 4th possible. The relative path 18th (i.e. the displacement of the clutch 8th opposite the valve lifter 4th along an axial direction as a result of the pivoting starting from the first position into the second position) is, in particular, the path required to actuate the valve.

In 2nd is shown that a seal 15 between the clutch 8th and the gas bottle 2nd is arranged exclusively by screwing the gas bottle 2nd with the clutch 8th along the axial direction 11 is compressible (i.e. is not compressed further as a result of the pivoting).

In 1 is shown that the holding device 7 a tour 17th includes so the gas bottle 2nd when connecting to the coupling 8th and when pivoting with the holding device 7 is performed and the connection between the coupling 8th and gas bottle 2nd opposite across to the axial direction 11 acting forces is essentially relieved.

According to step a) of the method, the connection device is provided 1 , comprising a connecting line 3rd with a valve lifter 4th , one between a first position 5 and a second position 6 swiveling holding device 7 with a clutch 8th as well as a gas bottle 2nd which is a pressurized fluid 9 stocked. According to step b), the holding device is arranged 7 in the second position 6 (please refer 3rd ). According to step c), the gas bottle is connected 2nd with the clutch 8th via a thread holder 10th the clutch 8th . After that there is a first extension 19th from one end of the gas bottle 2nd (lower end in the 3rd ) up to the valve lifter 4th before (top end in the 3rd ). According to step d), the holding device is pivoted 7 together with the clutch 8th and the gas bottle 2nd opposite the valve lifter 4th and the connecting cable 3rd and operating a valve 12th the gas bottle 2nd through the valve lifter 4th and establishing a fluid connection between the gas bottle 2nd and the connecting cable 3rd . Then there is a second extension 20 from one end of the gas bottle 2nd (lower end in the 4th ) up to the valve lifter 4th before (top end in the 4th ). The second extension 20 is about the relative path 18th shorter than the first extension.

Before step d) (and after step c)) is the valve 12th the gas bottle 2nd closed and is only in step d) by the valve lifter 4th actuated to establish the fluidic connection.

Reference list

1

Connection device

2nd

gas bottle

3rd

Connecting cable

4th

Valve lifter

5

first position

6

second position

7

Holding device

8th

coupling

9

Fluid

10th

Thread

11

axial direction

12th

Valve

13

first axis of rotation

14

second axis of rotation

15

poetry

16

Pressure reducer

17th

guide

18th

Relative path

19th

first extension

20

second extension

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 1378484 B1 [0005]

Claims (8)

Connection device (1) for a pressurized fluid (9) storing gas bottle (2), at least comprising a connection line (3) with a valve tappet (4), a holding device which can be pivoted between a first position (5) and a second position (6) (7) with a coupling (8), the gas bottle (2) being connectable to the coupling (8) via a threaded receptacle (10) of the coupling (8); whereby when the holding device (7) is pivoted from the first position (5) to the second position (6), the coupling (8) and the gas bottle (2) with the holding device (7) with respect to the connecting line (3) and the valve tappet ( 4) can be pivoted such that the coupling (8) can be displaced relative to the valve tappet (4) along an axial direction (11) and the valve tappet (4) actuates a valve (12) of the gas bottle (2) and thus a fluid-technical connection between the gas bottle (2) and the connecting line (3). Connection device (1) after Claim 1 , wherein the valve tappet (4) in the first position (5) is at least partially arranged within the coupling (8), wherein at least the valve tappet (4) is arranged pivotably together with the coupling (8), the coupling (8) being about a first axis of rotation (13) and the valve tappet (4) can be pivoted about a second axis of rotation (14) arranged parallel but offset to the first axis of rotation (13). Connection device (1) according to one of the preceding claims, wherein a seal (15) between the coupling (8) and the gas bottle (2) is arranged, which is exclusively by screwing the gas bottle (2) to the coupling (8) along the axial Direction (11) is compressible. Connection device (1) according to one of the preceding claims, wherein the connection line (3) is formed by a pressure reducer (16) which can reduce a pressure of the fluid (9) when flowing through the pressure reducer (16). Connection device (1) according to one of the preceding claims, wherein the holding device (7) comprises a guide (17) so that the gas bottle (2) is guided when connecting to the coupling (8) and when pivoting with the holding device (7) and the connection between the coupling (8) and the gas bottle (2) is substantially relieved of the forces acting transversely to the axial direction (11). Method for connecting a gas bottle (2) to a connecting line (3) via a connecting device (1), at least comprising the following steps: a) providing the connection device (1), at least comprising a connection line (3) with a valve tappet (4), a holding device (7) with a coupling (8) which can be pivoted between a first position (5) and a second position (6) and a gas bottle (2) which stores a pressurized fluid (9); b) arranging the holding device (7) in the second position (6); c) connecting the gas bottle (2) to the coupling (8) via a threaded receptacle (10) of the coupling (8); d) pivoting the holding device (7) together with the coupling (8) and the gas bottle (2) relative to the valve tappet (4) and the connecting line (3) and actuating a valve (12) of the gas bottle (2) through the valve tappet (4 ) and establishing a fluid connection between the gas bottle (2) and the connecting line (3). Procedure according to Claim 6 , Before step d) the valve (12) of the gas bottle (2) is closed and is only actuated in step d) by the valve tappet (4) to establish the fluidic connection. Method according to one of the preceding Claims 6 and 7 , wherein the valve tappet (4) in the first position (5) is arranged at least partially within the coupling (8), at least the valve tappet (4) being pivoted together with the coupling (8) in step d), the coupling ( 8) is pivoted about a first axis of rotation (13) and the valve tappet (4) about a second axis of rotation (14) which is arranged parallel to the first axis of rotation (13) but offset.

Images