Device for avalanche triggering system and system comprising such a device, and a blasting chamber

A device for an avalanche triggering system, said device being adapted to cooperate with a blasting chamber of the avalanche triggering system, said device comprising:

• a support frame carrying at least one gas storage system and adapted to be detachably mounted on the blasting chamber so as to cover all or part of the blasting chamber;
• a diffusion chamber secured to the support frame by means of a fixed proximal end of the diffusion chamber, all or part of an inner mixing cavity being delimited by at least one portion of the diffusion chamber, a gas mixer in fluid communication with said at least one gas storage system being housed in the inner mixing cavity, said gas mixer being configured to produce a gas mixture from the gas coming from said at least one gas storage system, the diffusion chamber further comprising at least one diffusion opening configured to allow the passage of the gas mixture from the inner mixing cavity to the outside of the diffusion chamber, in particular to supply the blasting chamber;
• at least one ignition system configured to trigger an explosion of the gas mixture;
• the diffusion chamber comprising a body extending from the fixed proximal end to a free distal end, said body being adapted to be contained in a volume of the blasting chamber when the device rests, by gravity, on the blasting chamber in an operating position configuration.