Protective hood for gas cylinder equipped with a tap unit, comprising: - a hood body forming a protective shell delimiting an internal volume designed to receive all or some of the tap unit , and - a hanging device pivoting about an axis (AA) between several angular positions comprising a rest position, wherein the hanging device is totally folded and an attachment position, wherein the hanging device is unfolded, characterised in that : - the pivoting of the hanging device with respect to the hood is ensured by two fingers (D) supported by the hanging device , said two fingers (D) are projected by extending with respect to the hanging device and being oriented in directions opposite one another, said two fingers (D) engaging with two housings (L) supported by the hood , each finger (D) being inserted in one of said housings (L), - each housing (L) is configured to have at least 3 successive sections (S1, S2, S3) comprising a first end section (S1) and a second end section (S2) connected to one another by an intermediate section (S3), the first and second end sections (S1, S2) having an internal profile of general semi-circular shape, and the intermediate section (S3) having an oblong shape, the first and the second end section (S1, S2) being separated from the intermediate section (S3) by wall restrictions (R1, R2) being projected radially inwards from the intermediate section (S3), and - each finger (D) being positioned in the first end section (S1) of the housing (L) wherein it is inserted, when the hanging device is in the attachment position and in the second end section (S2) of said housing, when the hanging device is in the rest position. - a hood body forming a protective shell delimiting an internal volume designed to receive all or some of the tap unit , and - a hanging device pivoting about an axis (AA) between several angular positions comprising a rest position, wherein the hanging device is totally folded and an attachment position, wherein the hanging device is unfolded, - the pivoting of the hanging device with respect to the hood is ensured by two fingers (D) supported by the hanging device , said two fingers (D) are projected by extending with respect to the hanging device and being oriented in directions opposite one another, said two fingers (D) engaging with two housings (L) supported by the hood , each finger (D) being inserted in one of said housings (L), - each housing (L) is configured to have at least 3 successive sections (S1, S2, S3) comprising a first end section (S1) and a second end section (S2) connected to one another by an intermediate section (S3), the first and second end sections (S1, S2) having an internal profile of general semi-circular shape, and the intermediate section (S3) having an oblong shape, the first and the second end section (S1, S2) being separated from the intermediate section (S3) by wall restrictions (R1, R2) being projected radially inwards from the intermediate section (S3), and - each finger (D) being positioned in the first end section (S1) of the housing (L) wherein it is inserted, when the hanging device is in the attachment position and in the second end section (S2) of said housing, when the hanging device is in the rest position. <EOS>