Electrical lock apparatus
A technology of electronic locks and terminals, applied in building locks, non-mechanical transmission-operated locks, time registers, etc., can solve the problems of large lock cylinder size and large key 10 size.
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[0021] As shown in FIG. 2 , the electronic lock device of the present invention includes a key head 60 formed on the front of the key 50 , wherein the key head 60 is hemispherical. Protrusions 60 a are formed at constant intervals of 60° at the rear of the key head 60 . The protrusion 60a has a constant thickness, and the front of the protrusion 60a is sharp. The key head 60 is in contact with a lock cylinder 70 formed with a hemispherical groove 80 into which the key head 60 can be inserted. The hemispherical groove 80 is provided with a groove 80a corresponding to the protrusion 60a, so that the protrusion 60a can be inserted into the groove 80a. The width of each groove 80a is greater than the width of each protrusion 60a to form a gap. Therefore, the user can hold the key with his hand and turn the key head 60 to allow the projection 60a to be inserted into the groove 80a, while the key cylinder 70 can be turned with the key cylinder 70 by inserting the key head 60 into ...
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