LOCK FOR LOCKING DOOR FLAPS AND KEY FOR IT Russian patent published in 2017 - IPC E05C7/02 E05C21/00 

FIELD: mechanisms.

SUBSTANCE: invention relates to locking devices, namely, to a lock for locking door flaps containing a screw pair consisting of a bearing nut and a bearing screw connecting the opposite flaps. Herewith the bearing screw is made with two thread sections and a collar between them. Herewith its one end is skewed at an angle, and on the other end there is a taper. One flap is equipped with a cylindrical recess, wherein in the bottom of the recess there is a hole, the diameter of which is smaller than that of the bearing screw collar but larger than that of the bearing screw on the side of the end having a taper. Herewith the recess in the flap is designed to accommodate the bearing screw collar and part of the bearing screw from the collar to the end with a skew. Bearing nut is made floating in a holder rigidly connected with the second flap with the possibility of its location in the middle position coaxial with the bearing screw located in the recess of the first flap. Also proposed is a key for the lock described above containing a rotary-translation pair composed of a bushing and a rod equipped with a cylindrical head on one end and a handle on the other end. Herewith the key rod head is made on the end with a skew, and the bushing is made with a stepped through axial hole inside it and a thread in the hole of a larger diameter made with the possibility of screwing with the lock bearing screw thread on the side of its skewed end. Herewith the outer diameter of the bushing is less than that of the cylindrical recess of the lock flap, and the diameter of the smaller hole in the bushing exceeds the diameter of the key rod but less than the diameter of its head.

EFFECT: locking door flaps.

2 cl, 3 dwg