DE29710622U1 - Closing and filling coupling for / on tank containers - Google Patents

Description

My file: N 45/27 kh

Closing and filling coupling for/on tank containers

The invention relates to a closure and filling coupling on/for tank containers at petrol stations according to the preamble of claim 1.

When filling the tank containers at petrol stations using fuel from the tank vehicles, a connection is established between the tank vehicle and the tank containers using a filling and gas pendulum hose.

However, when the filling and gas compensation hoses are connected and disconnected, gases escape into the atmosphere which are unpleasant for the operating personnel, can also have a detrimental effect on health and are detrimental to the environment.

The object of the invention is to automatically prevent gas escaping into the atmosphere when connecting and disconnecting the filling and gas pendulum hose in a simple, cost-effective and safe manner, so that the operating personnel can work cleanly and comfortably.

This object is achieved according to the invention in that a gas pendulum flap that can be swung open and closed is mounted in the curved part of the nozzle, which is held by spring force in a position that seals off the nozzle and is actuated by the coupled filling and

The gas pendulum hose can be moved against the spring force into a position that opens the nozzle.

The subclaims contain design features which represent advantageous and beneficial further developments of the task.

The closure and filling coupling according to the invention is equipped with a pivoting gas pendulum flap in the nozzle curve piece, which prevents gas from escaping when the filling hose is connected and disconnected, in that it is held in the sealed closed position by a tension spring when the closure cap is opened and is brought into the open position by its crown piece against the spring force when the filling and gas pendulum hose is connected.

When the filling and gas pendulum hoses are uncoupled, the gas pendulum flap is automatically moved into the closed position by its tension spring. This ensures that the flow cross-section of the branch nozzle is automatically closed in all positions and that gas escape is prevented, allowing the operating personnel to work cleanly and comfortably without causing any health damage.

In addition, the gas pendulum flap can be held in the closed position by a pressure piece inside the closure cap when the closure cap is swung onto the curved piece of the nozzle and secured in place.

The gas pendulum flap with its bearing and tension spring as well as the jacket-side seal is an inexpensive component with high efficiency and can be easily replaced when worn.

Furthermore, existing tank nozzles can be retrofitted with this gas pendulum flap, which is seen as another task. The gas pendulum flap and the closure cap provide double safety.

The drawing shows an embodiment of the invention, which is explained in more detail below. It shows:

Fig. 1 a side view in partial longitudinal section of a closure and filling coupling with a gas pendulum flap mounted in the tank-side nozzle so that it can be opened and closed with the closure cap open, the filling hose connected and the flap pivoted into position by its crown piece against a spring force,

Fig. 2 a side view in partial longitudinal section of the same coupling with the cap open, the filling hose removed and the flap pivoted into the closed position by a tension spring,

Fig. 3 is a plan view of the disc-shaped flap with pivot axis and switching cam.

The closure and filling coupling on/for tank containers has a tank-side nozzle (1) with a curved piece (2), to which a closure cap (3) for the sealed tank closure and a filling hose (4) for gas-tight tank filling can be coupled in a bayonet-type manner.

A gas pendulum flap (5) which can be swung open and closed is mounted in the curved section (2) of the nozzle (1), which is held in a position which seals off the nozzle (1) (Fig. 2) by means of spring force (6) and can be brought into a position which opens the nozzle (1) (Fig. 1) by means of the connected filling hose (4) against the spring force (6).

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The gas pendulum flap (5) is formed by a circular disk with a seal (7) running around the casing side and is mounted with a horizontal axis - shaft - (8) in the nozzle curve piece (2) so that it can rotate, preferably pivot open and closed by almost 90°. The seal (7) can be inserted into the flap (5) in a casing groove or vulcanized onto the flap (5).

A tension spring (6) is clamped to the flap (5) and to a retaining pin (9) in the curve piece (2) at a distance from the axis (8).

At one end of the axis (8) of the flap (5) there is a switching cam (11) which is directed transversely to the longitudinal direction of the axis and is acted upon by the crown piece (10) of the filling hose (4) when it is coupled and can be brought into position with the flap (5) against the spring force (6).

The closure cap (3) has a flexible and/or elastic pressure piece (12) on the inside, such as a rubber or plastic piece, spring or the like, which acts on the flap (5) when the closure cap (3) is closed and supports the flap (5) in the closing movement and holds it in the closed position.

The closure cap (3) is mounted on a holder (15) of the nozzle curve piece (2) with a lever (13) in an axis (14) so that it can be swung open and closed. In Fig. 1, the closure cap (3) is swung open and the filling hose (4) with its crown piece

(10) and a clamping ring (not shown) to the cam piece (2), whereby the crown piece (10) the switching cam

(11) is pivoted downwards and thus the gas pendulum flap (5)

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has pivoted about the axis (8) against the spring (6) into a position that largely exposes the flow cross-section of the crown piece (2) and nozzle {1).

When the filling hose (4) is uncoupled, its crown piece (10) releases the switching cam (1) and the spring (6) then pulls the gas pendulum flap (5) into the horizontal closed position, as shown in Fig. 2, in which the flap (5) with seal (7) seals the flow through the nozzle (1) and curved piece (2) gas-tight, in that the seal (7) rests all the way around the inside of the curved piece (2).

When the closure cap (3) is swung down, the pressure piece (12) acts on the flap (5) and supports and holds it in the sealed closed position. However, the pressure piece (12) is not absolutely necessary, as the tension spring (6) is sufficient for the closing movement and closed position.

The tension spring (6) can also act on a different point on the gas pendulum flap (5). Furthermore, a leg spring (6) can be provided around the axis (8) instead of the tension spring (6). It is also possible to dispense with a spring (6) and to just close the gas pendulum flap (5) and hold it in the closed position by the closure cap (3). As shown in Fig. 3 in dotted lines, the axis (8) can also be designed with a second switching cam (11) at the other end of the axis, whereby the axis (8) is then also extended at this end and carries the second switching cam (11) aligned in the same direction as the first switching cam (11), and both cams (11) are actuated by the crown piece (10).

Claims (7)

I Il ·· ·» ·» t»«t Dft ti 4* *» «ft m Protection claims 1. Closure and filling coupling on/for tank containers, with a tank-side nozzle with a curved piece, to which a closure cap can be coupled in the manner of a bayonet for the sealed tank closure and a filling hose for gas-tight tank filling, characterized in that in the curved piece (2) of the nozzle (1) there is mounted a gas pendulum flap (5) which can be pivoted open and closed, which is held in a position which seals off the nozzle (1) and can be brought into a position which opens the nozzle (1) by the coupled filling and gas pendulum hose (4). 2. Closure and filling coupling on/for tank containers, with a tank-side nozzle with a curved piece, to which a closure cap can be coupled in a bayonet-type manner for the sealed tank closure and a filling hose for gas-tight tank filling, characterized in that a gas pendulum flap (5) which can be pivoted open and closed is mounted in the curved piece (2) of the nozzle (1), which is held in a position which seals off the nozzle (1) by means of spring force (6) and/or by the closure cap (3) and can be brought into a position which opens the nozzle (1) against the spring force (6) by the coupled filling and gas pendulum hose (4). 3. Closure and filling coupling for/on tank containers according to claim 1 or 2, characterized in that the gas pendulum flap (5) is made of a circular disk with J ft a· &igr;« a« t··· a circumferential seal (7) on the jacket side and is rotatably mounted with a horizontal axis (8) in the nozzle curve piece (2) , preferably pivotable open and closed by almost 90°. 4. Closure and filling coupling for/on tank containers according to one of claims 1 to 3, characterized in that a tension spring (6) is clamped at a distance from the axis (8) on the gas pendulum flap (5) and on a retaining pin (9) in the nozzle curve piece (2). 5. Closure and filling coupling for/on tank containers according to one of claims 1 to 4, characterized in that a leg spring (6) is arranged around the axis {8} of the gas pendulum flap (5). 6. Closure and filling coupling for/on tank containers according to one of claims 1 to 5, characterized in that on the axis (8) of the gas pendulum flap (5) at least at one end there is provided a switching cam (11) which projects transversely to the longitudinal direction of the axis and is acted upon by the crown piece (10) of the filling hose (4) when it is coupled and can be brought into position with the gas pendulum flap (5) against the spring force (6). 7. Closure and filling coupling for/on tank containers according to one of claims 1 to 6, characterized in that a flexible and/or elastic pressure piece (12) is provided on the inside of the closure cap (3), which acts on the gas pendulum flap (5) when the closure cap (3) is closed and supports the gas pendulum flap (5) in the closing movement and holds it in the closed position.