Device and sanitary fitting for filling a container with a carbonated liquid

Abstract

A device (1) for filling a container (2) with a carbonated liquid, containing at least: an upper part (3) and a lower part (4) having a container port (5) for securing the container (2) to the device (1), wherein the lower part (4) can be displaced within limits relative to the upper part (3) between a closed position (23) and a venting position (6), and wherein the container (2) can displace the lower part (4) to the closed position (23) when the container (2) is secured to the container port (5), and the container (2) can displace the lower part (4) to the venting position (6) when the container (2) is released from the container port (5), such that a high pressure in the container (2) can be reduced in the venting position (6) of the lower part (4) prior to releasing the container (2) from the container port (5).

Claims

1. A device (1) for filling a container (2) with a carbonated liquid, comprising at least: an upper part (3) and a lower part (4) having a container port (5) for securing the container (2) to the device (1), wherein the lower part (4) is configured to be displaced within limits relative to the upper part (3) between a closed position (23) and a venting position (6), the container (2) is configured to displace the lower part (4) to the closed position (23) when the container (2) is secured to the container port (5), and the container (2) is configured to displace the lower part (4) to the venting position (6) when the container (2) is released from the container port (5), such that a high pressure in the container (2) is configured to be reduced in the venting position (6) of the lower part (4) prior to releasing the container (2) from the container port (5).

2. The device (1) according to claim 1, wherein a vent duct (7) of the lower part (4) is closed in the closed position (23) and open in the venting position (6).

3. The device (1) according to claim 2, wherein a seal (8) of the upper part (3) releases the vent duct (7) when the lower part (4) is moved into the venting position (6).

4. The device (1) according to claim 2, wherein the vent duct (7) is connected to a connection duct (9) of the upper part (3) when the lower part (4) is moved into the venting position (6).

5. The device (1) according to claim 2, wherein a spring element (10) releases the vent duct (7) when the lower part (4) is moved into the venting position (6).

6. The device (1) according to claim 5, wherein the spring element (10) is supported at the upper part (3).

7. The device (1) according to claim 6, wherein the spring element (10) is supported on a ramp (11) of the upper part (3), which ramp has a gradient in a direction of motion of the lower part (4).

8. The device (1) according to claim 1, wherein the upper part (3) and the lower part (4) are interconnected by a thread (12).

9. The device (1) according to claim 1, wherein a blocking element (13) of the upper part (3) limits a movability of the lower part (4) relative to the upper part (3).

10. A sanitary fitting, comprising an outlet (18) with an outlet opening (17), wherein a device (1) according to claim 1 is arranged at the outlet opening (17).

Description

(1) The invention and the technical environment are explained in more detail below with reference to the figures. It should be noted that the figures show particularly preferred embodiment variants of the invention, but the invention is not limited thereto. The same reference signs are used for the same components in the figures. Shown are in an exemplary and schematic manner in:

(2) FIG. 1 a first presentation of a first variant of a device for filling a container;

(3) FIG. 2 the first variant of the device for filling a container in a second embodiment;

(4) FIG. 3 a second variant of a device for filling a container; and

(5) FIG. 4 a third variant of a device for filling a container.

(6) FIG. 1 shows a first presentation of a longitudinal section of a first variant of a device 1 for filling a container 2 with a carbonated liquid. Device 1 comprises an upper part 3 and a lower part 4.

(7) The upper part 3 has a coupling 15 on its top face 16, which is designed here in the manner of a bayonet connection. The coupling 15 is used to attach the upper part 3 to an outlet opening 17 of an outlet 18 of a sanitary fitting not shown here. A container port 5 is used to attach the container 2 to the lower part 4, which container port is also designed in the manner of a bayonet connection in this case. For this purpose, the opening 22 of the container 2 is inserted into the container port 5 and rotated. Liquid ducts 20 are formed in the upper part 3 and the lower part 4, through which liquid ducts the carbonated liquid can be routed from the outlet 18 into a receiving chamber 19 of the container 2.

(8) FIG. 2 shows the first variant of the device 1 without the container 2 and the outlet 18. To attach the container 2 to the container port 5 of the lower part 4, the container 2 is rotated clockwise about an axis of rotation 21. When the container 2 is rotated, the container 2 attached to the lower part 4 rotates the lower part 4 about the axis of rotation 21 relative to the upper part 3 until a blocking element 13, which in this case is designed in the manner of a screw and engages with a groove 14 of the lower part 4, blocks any further rotation of the lower part 4 relative to the upper part 3. A thread 12 is formed between the lower part 4 and the upper part 3, such that the lower part 4 is screwed against a seal 8 of the upper part 3 during its rotation about the axis of rotation 21. This closes a vent duct 7 of the lower part 4 preventing any gases from escaping from the receiving chamber 19 of the container 2 shown in FIG. 1 via the vent duct 7 into an environment. The lower part 4 is therefore in a closed position 23 in FIG. 2. In the closed position 23, the container 2 can be filled with a carbonated liquid, which increases the pressure in the receiving chamber 19.

(9) To detach the container 2 from the lower part 4, the container 2 is rotated counterclockwise around the axis of rotation 21. Owing to the pressure present in the receiving chamber 19, there is a friction connection between the container 2 and the lower part 4, so that the lower part 4 is rotated with the container 2 counterclockwise about the axis of rotation 21. This causes the lower part 4 to be rotated relative to the upper part 3 in the direction of a venting position 6 not shown here, until the blocking element 13 blocks any further rotational motion of the lower part 4. The thread 12 moves the lower part 4 away from the upper part 3 in parallel to the axis of rotation 21. In this way, the seal 8 is lifted from a longitudinal end of the vent duct 7, allowing gases to escape from the receiving chamber 19 (cf. FIG. 1) of the container 2 via the vent duct 7 and gap(s) 24 between the upper part 3 and the lower part 4 into an environment 25, causing the pressure in the receiving chamber 19 to drop to an ambient pressure. In this way, the container 2 can be easily detached from the lower part 4.

(10) FIG. 3 shows a longitudinal section of a second variant of the device 1. The lower part 4 can also be rotated here in a limited manner relative to the upper part 3 about the axis of rotation 21 by a container 2 not shown here. In contrast to the first variant of the device 1 shown in FIGS. 1 and 2, in the second variant no thread 12 is formed between the upper part 3 and the lower part 4, i.e., the lower part 4 is not moved in parallel to the axis of rotation 21 during its rotary motion. In FIG. 3, the lower part 4 is in a venting position 6, in which the vent duct 7 is connected to a connection duct 9 of the upper part 3 via a venting opening 26 in the seal 8. In this way, gases can escape from the receiving chamber 19 of the container 2 (cf. FIG. 1) via the vent duct 7, the venting opening 26 in the seal 8 and the connection duct 9 into the environment 25 until the pressure in the receiving chamber 19 has dropped to an ambient pressure. When the lower part 4 is rotated to a closed position 23 not shown here, the seal 8 closes the vent duct 7. In all other respects, the design of the second variant of the device 1 is identical to that of the first variant of the device 1.

(11) FIG. 4 shows a longitudinal section of a third variant of the device 1. In this variant, a spring element 10 is arranged in the vent duct 7 of the lower part 4, the valve head 27 of which spring element is pulled by a spring 29 onto a valve seat 28 at a longitudinal end of the vent duct 7 in a closed position 23 (not shown here) of the lower part 4. In this way, the vent duct 7 is closed in the closed position 23. A longitudinal end of the spring element 10 is supported on a ramp 11 of the upper part 3. The ramp 11 has a slope, i.e., when the lower part 4 is moved to the venting position 6 shown here, the spring element 10 moves (downwards) in parallel to the axis of rotation 21 and the valve head 27 is lifted off the valve seat 28. In this way, the vent duct 7 opens to let gases escape from the receiving chamber 19 of the container 2 shown in FIG. 1 via the vent duct 7 and gaps 24 between the upper part 3 and the lower part 4 into the environment 25 until the pressure in the receiving chamber 19 has dropped to the ambient pressure. In all other respects, the design of the third variant of the device 1 is identical to the first or second variant of the device 1.

(12) This invention makes a container for a carbonated liquid particularly easy to detach.

LIST OF REFERENCE NUMERALS

(13) 1 Device 2 Container 3 Upper part 4 Lower part 5 Container port 6 Venting position 7 Vent duct 8 Seal 9 Connection duct 10 Spring element 11 Ramp 12 Thread 13 Blocking element 14 Groove 15 Coupling 16 Top face 17 Outlet opening 18 Outlet 19 Receiving chamber 20 Fluid duct 21 Axis of rotation 22 Opening 23 Closed position 24 Gap 25 Environment 26 Vent opening 27 Valve head 28 Valve seat 29 Spring