Safety securing device and securing assembly comprising such a device

A safety securing device comprising a first carabiner and a second carabiner configured to receive a securing element, each of the first and second carabiners comprising:

• a hook provided with an opening, said opening configured to receive said securing element,
• said hook having a receiving zone configured to contain said securing element;
• a gate rotatably mounted to the hook and rotatable around a rotation axis, said gate having two arms configured to receive said securing element, wherein said gate is configured to rotate into a housing configuration, said housing configuration comprises said securing element being located between said two arms and said receiving zone;
• wherein at least one of said two arms is configured for closing said opening when said gate is positioned in said housing configuration;
• a locking part mounted to said hook and coupled to said gate;
• said locking part configured to move with respect to said hook between a locked position and an unlocked position, said locking part being coupled to a constraint spring;
• said constraint spring configured to activate said locking part when said gate closes said opening,
• said first carabiner connected to said second carabiner by a first cable connecting the first carabiner gate to said second carabiner locking part,
• wherein when said first carabiner gate is moved into the housing configuration of said first carabiner gate, said first carabiner gate activates the first cable to cause deactivation of the second carabiner locking part,
• a first sheath coupled between the hook of the first carabiner and the hook of the second carabiner, said first cable being configured to slide in said first sheath,
• said first carabiner connected to said second carabiner by a second cable connecting the second carabiner gate to said first carabiner locking part,
• wherein when said second carabiner gate is moved into the housing configuration of said second carabiner gate, said second carabiner gate activates the second cable to cause deactivation of said first carabiner locking part,
• a second sheath coupled between the hook of the first carabiner and the hook of the second carabiner, said second cable being configured to slide in said second sheath.