Gas supply device

1. A gas supply device comprising a frame equipped with a base and accommodating a plurality of pressurised fluid cylinders connected to a fluidic circuit for ensuring extraction from or filling of the pressurized fluid cylinders, said circuit comprising a first connection end connected to the pressurized fluid cylinders and a second end comprising at least one fluidic connection intended to be connected removably to an extraction or filling element for the pressurized fluid cylinders, the frame comprising on one of its faces at least one opening giving access to at least one connection of the circuit, the frame also comprising at least one attachment element provided to cooperate with a lifting device for the frame, wherein the device comprises at least one sensor for lifting of the frame via the at least one attachment element and at least one sensor for detecting access to a connection, the device also comprising at least one warning element configured to generate a warning automatically once the lifting sensor detects a lifting of the frame and the access detection sensor detects access to a connection.

2. The device of claim 1 , wherein the frame comprises an interface panel, the opening giving access to the connection(s) being arranged in said panel, the sensor for detecting access to the connection(s) being configured to detect access to the connection(s) via said opening.

3. The device of claim 1 , wherein the at least one attachment element comprises a lifting ring situated in the upper part of the frame and secured to the structure of the frame, the frame comprising at least one lifting sensor amongst: a sensor for detecting a traction force on the ring, a sensor for detecting a mechanical connection at the ring, the sensor working via a mechanical and/or electrical and/or optical and/or magnetic measurement.

4. The device of claim 3 , wherein the ring is movable in translation relative to the base of the frame between a first low position when the frame is not raised via the ring and a second high position when the frame is raised via the ring, the lifting sensor comprising a switch detecting passage of the ring from the first to the second position.

5. The device of claim 4 , wherein the ring is mounted so as to slide in a hollow tube of the frame forming a central mast linked to the base of the frame.

6. The device of claim 5 , wherein the ring is secured to the upper end of a shaft mounted so as to slide in the hollow tube, and the lower end of said shaft is linked to a platform opening into the housing(s), said platform being movable between a low position and a high position.

7. The device of claim 6 , wherein the at least one lifting sensor comprises a switch cooperating with the platform or a piece mechanically linked to the platform.

8. The device of claim 1 , wherein the at least one sensor for detecting access to a connection comprises at least one amongst: an electrical sensor, an optical sensor, a mechanical sensor, a magnetic sensor.

9. The device of claim 1 , wherein the frame comprises a cover which is movable between a first position closing the at least one opening to prevent access to a connection and a second opening position allowing access to the connection, and that the at least one sensor for detecting access to a connection is configured for detecting the open or closed position of said cover.

10. The device of claim 1 , further comprising at least one warning element amongst: an audible warning, a luminous warning.

11. The device of claim 1 , wherein the at least one warning element is connected by hard-wired connection or wirelessly to said sensors.