FIELD: locking devices for securing objects and structural members separated from load-bearing structure of spacecraft; rocketry and space engineering. ^ SUBSTANCE: holding and destructible members are separable. Holding member is made in form of spring-loaded rod provided with member for connection with separable object or with structural member. Spring-loaded rod moves in locking device body perpendicularly relative to direction of force application. Thread is used as destructible member. Thread locks the rod in position of holding the separable object tightly adjoining to heating coil due to location of points of attachment of thread beyond cylindrical generatrix of heating spiral and tensioning device. Destructible member is broken due to burning when voltage is fed to heating coil. ^ EFFECT: enhanced safety and operational reliability. ^ 3 dwg
