Safety protection cover of gas cylinder pressure reducer

A gas cylinder pressure reducer safety protection cover comprises a protection shell, a regulating valve, a gauge pressure and a cylinder pressure, the regulating valve, the gauge pressure and the cylinder pressure are connected with the interior of the protection shell, and the regulating valve is connected with the gauge pressure and the cylinder pressure. The protective shell comprises a first protective cover, a second protective cover, a long screw, a first round hole, a second round hole and a third round hole. Compared with the prior art, the protective shell is additionally arranged, so that the gas cylinder is convenient to replace, the pressure reducing valve does not need to be disassembled, and the pressure gauge is protected. 一种气瓶减压器安全保护罩，包括：保护外壳、调节阀、表压和瓶压，调节阀、表压和瓶压与保护外壳内部连接，调节阀与表压和瓶压连接。其中，保护外壳包括：第一护罩、第二护罩、长螺丝、第一圆孔、第二圆孔和第三圆孔。本实用新型与传统技术相比，通过增设保护外壳，方便更换气瓶，无需拆卸减压阀，实现保护压力表。