A method for quickly extracting a five-protection locking mechanical key

Abstract

The present invention discloses a method for quickly extracting a five-protection locking mechanical key, the steps of which are: inserting a replacement key; unlocking the replacement key in place; a logic judgment module performs logic judgment and output according to a signal; the corresponding light strip performs corresponding processing; and extracting the replaced key. The present invention adds a sensor and a logic judgment module on the basis of an existing five-protection key replacement box, and installs a light strip at the corresponding key. The logic judgment module uses AND or NOT logic for identification. When a key replacement operation is performed, the light strip of the corresponding mechanical key will be lit if the AND or NOT logic is met. The staff can directly identify the replaced key and complete the key replacement operation. The present invention can quickly extract the five-protection key in the five-protection key replacement box, and has the advantage of being relatively more convenient to extract the key.

Description

Technical Field

[0001] The invention relates to the technical field of pumped storage power stations, in particular to a method for quickly extracting a five-protection locking mechanical key. Background Art

[0002] Pumped-storage power stations have more operating conditions and the system structure is more complex than conventional hydropower. Therefore, five electrical protection devices are installed between the equipment. Common anti-error locking devices can be divided into microcomputer anti-error devices, electrical locking devices, electromagnetic locking devices and mechanical locking devices.

[0003] In addition to the locks on the electrical circuits, 500kV system equipment, switches, circuit breakers, and earth switches are also equipped with special mechanical locking devices. Only when the staff operates the mechanical locking device to meet the corresponding locking logic and replace the key of the corresponding device, can the replaced key be used to perform the corresponding unlocking operation. The mechanical key locking device is usually a five-protection key replacement box, which is specially used to store and lock the five-protection keys corresponding to the equipment.

[0004] However, there are so many keys on the existing five-protection key replacement box that the staff needs to spend a lot of time to familiarize themselves with and remember the key replacement logic corresponding to the five-protection key replacement box, and then check the nameplates on the keys one by one to extract the corresponding keys when replacing the keys; in special circumstances, there may be a problem of poor lighting, and the staff need to use lighting fixtures or rely on limited lighting to perform key extraction operations in such a poor environment, which is very inconvenient; and the five-protection key replacement boxes configured for different devices are not exactly the same, and may have different key replacement logics, which makes it even more difficult for the staff to quickly replace the five-protection keys.

[0005] Therefore, the existing five-protection key replacement box has the problems of limited key replacement speed and inconvenient key extraction. Summary of the invention

[0006] The purpose of the present invention is to provide a method for quickly extracting a five-protection locking mechanical key. The present invention can quickly extract a five-protection key from a five-protection key replacement box, and has the advantage of being relatively more convenient to extract the key.

[0007] The technical solution of the present invention is a method for quickly extracting a five-protection locking mechanical key, and the steps are as follows:

[0008] S1, insert the replacement key into the key replacement box, and the sensor outputs signal 1 to the logic judgment module;

[0009] S2: The replacement key is unlocked and the sensor outputs signal 1 to the logic judgment module;

[0010] S3, the logic judgment module performs logic judgment according to the received signal and outputs a signal according to the logic judgment result;

[0011] S4, the corresponding light strip receives the output signal of the logic judgment module and performs corresponding processing;

[0012] S5. If the logic judgment is passed and the replacement is successful, the corresponding light strip will light up or go out, and the replaced key will be extracted; otherwise, the light strip will not work, and return to step S1.

[0013] In the aforementioned method for quickly extracting a five-protection locking mechanical key, a sensor is provided in the key replacement box, and the sensor is connected to a logic judgment module; the logic judgment module is connected to a power supply module for power supply; a plurality of keyholes are provided on the key replacement box, a light strip is provided on the outer ring of each keyhole, and a five-protection key is inserted into the keyhole.

[0014] In the aforementioned method for quickly extracting a five-protection locking mechanical key, the replacement key and the replaced key are five-protection keys of different specifications.

[0015] In the aforementioned method for quickly extracting a five-protection locking mechanical key, the logic judgment module is a single-chip microcomputer or a PLC.

[0016] In the aforementioned method for quickly extracting a five-protection locking mechanical key, the light strip is an LED light strip.

[0017] In the aforementioned method for quickly extracting a five-protection locking mechanical key, the key replacement logic is compiled in the logic judgment module, and the logic judgment is an AND or NOT logic judgment.

[0018] Compared with the prior art, the present invention adds sensors and logic judgment modules on the basis of the existing five-protection key replacement box, and then installs a light strip at the corresponding key. After the staff compiles the key replacement logic of the five-protection key replacement box into the logic judgment module, the logic judgment module can use AND or NOT logic for identification. When the key replacement operation is performed, the logic judgment module performs identification and judgment. Once the AND or NOT logic is met, the light strip of the corresponding mechanical key will be lit. In this way, the staff can directly identify the replaced key through the lit light strip without checking the key nameplate one by one, thereby completing the key replacement operation quickly and easily.

[0019] Therefore, the present invention can quickly extract the five-protection key in the five-protection key replacement box, and the extraction of the key is relatively more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process of the present invention;

[0021] Figure 2 It is a schematic diagram of the framework structure of the present invention;

[0022] Figure 3 It is a flow chart of the operation of the 50516 knife switch box in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] Embodiment. A method for quickly extracting a five-protection locking mechanical key, such as Figure 1 As shown, the steps are as follows:

[0025] S1, insert the replacement key into the key replacement box 1, the sensor outputs a signal 1 to the logic judgment module; when the replacement key is not inserted, the sensor outputs a signal 0 to the logic judgment module;

[0026] S2: The replacement key is unlocked and the sensor outputs signal 1 to the logic judgment module;

[0027] S3, the logic judgment module performs logic judgment according to the received signal, and outputs a signal according to the logic judgment result; when the replacement key is not unlocked in place, the sensor outputs a signal 0 to the logic judgment module;

[0028] S4, the corresponding light strip 4 receives the output signal of the logic judgment module and performs corresponding processing;

[0029] S5, if the logic judgment is passed and the replacement is successful, the corresponding light strip 4 lights up or goes out, and the replaced key is extracted; otherwise, the light strip 4 does not move, and the process returns to step S1.

[0030] like Figure 2 A sensor is provided in the key replacement box 1, and the sensor is connected to a logic judgment module; the logic judgment module is connected to a power supply module for power supply; a plurality of keyholes 2 are provided on the key replacement box 1, a light strip 4 is provided on the outer ring of each keyhole 2, and a five-protection key 3 is inserted on the keyhole 2.

[0031] The replacement key and the replaced key are five-protection keys 3 of different specifications. The replacement key is a front key, which is used to replace the corresponding replaced key locked in the key replacement box 1; the replaced key can also be used as a front key to replace the corresponding subsequent replaced key locked in the key replacement box 1; similarly, the replacement key can be unlocked by inserting the replaced replaced key back into the key replacement box 1 and locking it.

[0032] The logic judgment module is a single chip microcomputer or a PLC, and the light strip 4 is an LED light strip.

[0033] The key replacement logic of the key replacement box 1 itself is compiled into the logic judgment module by the staff in advance, and the logic judgment is AND or NOT logic judgment.

[0034] Working principle:

[0035] As attached Figure 3 , take the 50516 switch box as an example to explain:

[0036] The 50516 switch exchange box has 7 mechanical key positions, of which the first 3 (S51) are empty and the last 4 (S53) are in place;

[0037] In order to take out the last three keys, the staff needs to insert three S51s into the corresponding mechanical key positions and then rotate them into place; in this way, the lock bolt in the 50516 knife switch box used to lock the corresponding S53 will retract, and the light strip 4 corresponding to S53 will light up, and the staff can directly identify and remove the corresponding S53.

[0038] The logical judgment is as follows:

[0039] Put three S51s into the key box and rotate them into place, lighting up the three S53 light strips. The logic is (the three positions of S51 are 1 and the logical output result) and (the three S51s are rotated into place and the logical output result is 1). The output signal is given to the corresponding light strip 4, and light strip 4 lights up;

[0040] After being lit, the light strip 4 is in a constant on state and will not go out until the corresponding key is returned. The logic for restoring the light strip after the key is returned is (S53 is put into position 1) and (S53 is rotated into position 1), and the light strip 4 goes out; among them, the light strip 4 goes out as a single key logic.

Claims

1. A method for quickly extracting a five-protection locking mechanical key, the steps are as follows: S1, inserting a replacement key into the key replacement box (1), and the sensor outputs a signal 1 to the logic judgment module; S2: The replacement key is unlocked and the sensor outputs signal 1 to the logic judgment module; S3, the logic judgment module performs logic judgment according to the received signal and outputs a signal according to the logic judgment result; S4, the corresponding light strip (4) performs corresponding processing after receiving the output signal of the logic judgment module; S5, if the logic judgment is passed and the replacement is successful, the corresponding light strip (4) lights up or goes out, and the replaced key is extracted; otherwise, the light strip (4) does not work, and the process returns to step S1; The key replacement box (1) is provided with a sensor, and the sensor is connected to a logic judgment module; the logic judgment module is connected to a power supply module for power supply; the key replacement box (1) is provided with a plurality of keyholes (2), each keyhole (2) is provided with a light strip (4) on its outer ring, and a five-protection key (3) is inserted into the keyhole (2).

2. A method for quickly extracting a five-protection locking mechanical key according to claim 1, characterized in that: The replacement key and the replaced key are five-protection keys (3) with different specifications.

3. The method for quickly extracting a five-protection locking mechanical key according to claim 1, characterized in that: The logic judgment module is a single chip microcomputer or a PLC.

4. The method for quickly extracting a five-protection locking mechanical key according to claim 1, characterized in that: The light strip (4) is an LED light strip.

5. The method for quickly extracting a five-protection locking mechanical key according to claim 1, characterized in that: The key replacement logic is compiled in the logic judgment module, and the logic judgment is an AND or NOT logic judgment.

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