Patent ID: 11859409
Assignee: WENZHOU YEEKA LOCK TECHNOLOGY CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A control method of electronic lock, the electronic lock comprising a lock body, an unlock tool, an electromagnet located in the lock body, and a first permanent magnet further located in the lock body; wherein: the electromagnet comprising an electromagnetic coil, a telescopic body and a force applying structure; the telescopic body or the force applying structure being driven to drive the telescopic body to perform retraction movements when the electromagnetic coil is energized in a forward direction; when the electromagnetic coil is energized in a reverse direction, the telescopic body being driven or driven jointly with the force applying structure to perform extension movements;
when in an initial state, the electromagnet being in a power-off state or a reverse energization state, and being extended and held by the telescopic body of the electromagnet, and the lock body being clamped by the telescopic body or being clamped by a extended block connected to the telescopic body of the electromagnet, such that the lock body cannot be opened, and the electronic lock is in a locked state;
when the electronic lock obtains an unlock instruction and needs to be automatically opened, forward power being supplied to the electromagnet to retract the telescopic body; the lock body being released from a locking state by the telescopic body or the extended block in a retracted state, such that the lock body is opened and the electronic lock is automatically opened;
when an unlock action is performed by the unlock tool, the unlock tool first coupling to the lock body so that the lock body cannot be opened, then the unlock action is continued, the unlock tool pushing the telescopic body or the extended block to retract, and the lock body being released from the locking state by the telescopic body or the extended block; during this process, the unlock tool remaining coupled to the lock body, and the lock body still cannot be opened; Step A, or B, or C being performed as follows;
Step A: when the electronic lock has an electronic failure or the electronic lock obtains the unlock instruction, or the electronic lock obtains a release instruction releasing an unlocking from an anti-unlock tool, so that the electromagnet is in or remains in the power-off state, the first permanent magnet absorbing the telescopic body or the extended block in the retracted state; when the unlock tool further performs unlocking or reverse unlocking, the locking state of the lock body is gradually released, the telescopic body still remaining retracted; when the unlock tool completely unlocks the lock body, the lock body opening and the electronic lock being unlocked with the unlock tool;
Step B: when the electronic lock senses that the unlock action by the unlock tool is illegal, the electromagnet being supplied with reverse power, so that the first permanent magnet cannot absorb the telescopic body or the extended block in the retracted state; when the unlock tool performs further unlock action or reverse unlock action, and gradually releases a coupled state of the lock body, the telescopic body extending and blocking the lock body with an action of the electromagnet, or the telescopic body following the action of the electromagnet and extending to clamp the lock body with the extended block connected to the telescopic body; Step C being executed as follows;
Step C: when the electronic lock senses that the unlock action by the unlock tool is illegal; when the unlock tool further performs the unlock action, or performs the reverse unlock action, the coupled state of the lock body being gradually released, the unlock tool being separate with the telescopic body or the extended block; when the unlock tool has not completely released the coupled state of the lock body, reverse power being supplied to the electromagnet, such that the first permanent magnet cannot absorb the telescopic body or the extended block in the retracted state; the telescopic body extending with the action of the electromagnet and clamping the lock body, or the telescopic body extending with the action of the electromagnet and clamping the lock body with the extended block connected to the telescopic body; the following step D being executed;
Step D: when the unlock tool completely releases the coupled state of the lock body, the lock body being still clamped by the telescopic body, the lock body cannot be opened, and the electronic lock preventing illegal unlocking by the unlock tool.