Opening cover lock device based on linkage mechanism
A technology of linkage mechanism and flap lock, which is applied in building locks, building structures, building fastening devices, etc., can solve the problems of unsuitable flaps, etc., reduce the link of human judgment that the unlocking is in place, improve the disassembly efficiency, The effect of simplifying operations
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[0038] Each cover mechanism comprises parts such as locking bar, guide ring and connecting rod among the present embodiment. There is an opening in the center of the cover, and a lock cylinder is installed in the opening to operate the locking and unlocking of the cover mechanism. There are four protruding lugs around it, and the lugs are connected with the locking bar through a connecting rod. , the locking rod moves linearly along the guide ring. The lock core moves along the normal direction of the mouth cover under the action of the limit block, and a spring is arranged between the lock core and the limit block.
[0039] When the spring is in the longest state, the lugs, connecting rods and locking rods are in the over dead point position, the locking rod is stretched out, inserted into the locking ring on the mouth frame, and the lid lock mechanism is in a locked state, as figure 2 shown. Under the action of the spring, the lock cylinder remains in the locked position,...
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