CN216197271U - Lock for mechanism box of circuit breaker of transformer substation - Google Patents

Abstract

The utility model discloses a transformer substation circuit breaker mechanism box lockset, which comprises a speed reducing motor; driven external teeth are arranged on a lock tongue shifting fork of the mortise door lock, a speed reducing motor is fixed inside the mortise door lock, and an output gear of the speed reducing motor is in meshing transmission connection with the driven external teeth of the lock tongue shifting fork; the IC card is in signal connection with the input end of the RFID system, the output end of the RFID system is electrically connected with the input end of the microprocessor, and the output end of the microprocessor is electrically connected with the speed reducing motor. The advantages are that: unlocking can be realized by swiping the contact type IC main card and then swiping the contact type IC auxiliary card, so that the function of authorized unlocking is realized, and double verification is realized; the unlocking time can be effectively shortened by swiping the IC card; the original required maximum time of 330 seconds is shortened to 10 seconds, and then the accurate unlocking can be completed.

Description

Lock for mechanism box of circuit breaker of transformer substation

The technical field is as follows:

the utility model relates to the technical field of substation equipment, in particular to a lock for a mechanism box of a breaker of a substation.

Background art:

in recent years, with the rapid development of power grid construction, the outgoing line interval of a transformer substation is continuously increased, more and more devices need to be managed in the substation, and in order to ensure the safety of people, the power grid and the devices, a lock needs to be additionally arranged on a mechanism box of a circuit breaker so as to prevent other people from opening and closing the circuit breaker by mistake; meanwhile, the requirement of the power grid on the operation reliability of the electrical equipment is higher and higher, so that the frequency of overhauling and testing the breaker mechanism in the station is increased.

The transformer substations are mostly located in areas concentrated in suburb high-energy-carrying factories, and mechanical locks (padlocks) are adopted in the existing in-station circuit breaker mechanism boxes, so that the quality of the locks is uneven; the lockset is exposed to wind, sun and rain outdoors for a long time, and is polluted by a factory with high energy carrying capacity, the lockset is corroded, jammed and cannot be opened frequently, the unlocking time is long, and the working efficiency of transportation and inspection personnel is directly reduced.

At present, all transformer substations use mechanical locks with national grid identifications, the locks are produced in batches, all locks in the same batch in a substation can be unlocked by only one key, meanwhile, a plurality of keys in the same batch are also provided, and the keys can be obtained by different ways for flowing to various links, namely, operation, maintenance and even external constructors, so that the condition that operation and maintenance personnel of the transformer substations are unaware can occur, and other personnel can open the breaker mechanism box privately, and the personal safety, the grid safety and the equipment safety are damaged.

In summary, the existing mechanical lock has two main disadvantages:

firstly, the unlocking time is long after the lock is corroded;

and secondly, the risk that other inbound persons privately open the mechanical lock exists.

The utility model has the following contents:

the utility model aims to provide a mechanism box lock of a substation breaker, which is beneficial to shortening unlocking time and can effectively avoid potential safety hazards caused by private opening of a mechanism box.

The utility model is implemented by the following technical scheme: the transformer substation circuit breaker mechanism box lock comprises a mortise door lock; the RFID system also comprises a speed reducing motor, an RFID system, an IC card and a microprocessor; driven external teeth are arranged on a lock tongue shifting fork of the mortise door lock, the speed reducing motor is fixed inside the mortise door lock, and an output gear of the speed reducing motor is in meshing transmission connection with the driven external teeth of the lock tongue shifting fork; the IC card is in signal connection with the input end of the RFID system, the output end of the RFID system is electrically connected with the input end of the microprocessor, and the output end of the microprocessor is electrically connected with the speed reducing motor.

Further, the IC card includes a contact IC main card and a contact IC sub card.

Further, the system also comprises a Hall element, a communication module, an Aliyun Internet of things platform and a mobile phone user side; the output end of the Hall element is electrically connected with the input end of the microprocessor, the output end of the microprocessor is electrically connected with the input end of the communication module, and the output end of the communication module is electrically connected with the SIM card; the SIM card is in signal connection with the input end of the Ali cloud Internet of things platform through an antenna, and the output end of the Ali cloud Internet of things platform is in signal connection with the mobile phone user side; and an induction magnet corresponding to the Hall element is fixed on a bolt of the mortise door lock.

Further, the communication module further comprises a voltage reduction module electrically connected with the communication module.

Furthermore, the device also comprises a human body infrared induction electronic module and a proximity switch fixed on the end face of the lock catch box of the mortise door lock; the human body infrared induction electronic module and the proximity switch are electrically connected with the input end of the microprocessor.

Furthermore, a screw thread lens is arranged on a probe of the human body infrared induction electronic module.

The utility model has the advantages that: the utility model can realize unlocking by swiping the contact type IC main card and then swiping the contact type IC auxiliary card, realizes the function of authorized unlocking and double verification, and compared with the existing mechanical lock, the utility model can effectively prevent other personnel from opening the mechanism box of the circuit breaker privately, thereby ensuring the safety; the original required maximum time of 330 seconds is shortened to 10 seconds, and then the accurate unlocking can be completed.

When the door of the mechanism box is closed, the proximity switch sends a detected signal to the microprocessor, whether a person is still present is detected through the human body infrared sensing electronic module, and when no person is detected, the microprocessor drives the speed reduction motor to automatically lock the mortise door lock, so that automatic monitoring and automatic locking can be realized.

The position of the spring bolt is detected by the Hall element in cooperation with the induction magnet on the spring bolt, and a changed magnetic field signal is converted into digital voltage to be output, so that the opening and closing state of the lockset can be remotely monitored.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a schematic view of the internal structure of the mortise door lock of the present invention.

Fig. 4 is a schematic diagram of a control structure of the present invention.

The parts in the drawings are numbered as follows: the intelligent lock comprises a mortise door lock 1, a bolt 1.1, a bolt shifting fork 1.2, driven external teeth 1.21, a lock cylinder 1.3, a lock catch box 1.4, a speed reducing motor 2, a proximity switch 3, an IC card 4, an RFID system 5, a microprocessor 6, an induction magnet 7, a communication module 9, a Hall element 11, an SIM card 12, an Aliyun Internet of things platform 13, a mobile phone user side 14, a voltage reduction module 15, a human body infrared induction electronic module 16, a screw thread lens 17, a mechanism box 18 and a power supply 19.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the present embodiment provides a substation breaker mechanism box lock, which includes a mortise door lock 1; the system also comprises a speed reducing motor 2, an RFID system 5, an IC card 4 and a microprocessor 6; the model of the microprocessor 6 is STM32F103, the IC card 4 comprises a contact type IC main card and a contact type IC auxiliary card, and the controller of the RFID system 5 adopts a chip with the model of RC 522; driven external teeth 1.21 are arranged on a bolt shifting fork 1.2 of the mortise door lock 1, a speed reducing motor 2 is fixed inside the mortise door lock 1, and an output gear of the speed reducing motor 2 is in meshing transmission connection with the driven external teeth 1.21 of the bolt shifting fork 1.2; the contact type IC main card and the contact type IC auxiliary card are respectively in signal connection with the input end of the RFID system 5, the output end of the RFID system 5 is electrically connected with the input end of the microprocessor 6, and the output end of the microprocessor 6 is electrically connected with the speed reducing motor 2; the RFID system 5, the contact type IC main card and the contact type IC auxiliary card form an RFID card swiping unlocking system; when the card swiping operation is carried out on site, firstly, a contact type IC main card is swiped on the RFID system 5, and when the RFID system 5 receives data in the contact type IC main card, the RFID system 5 transmits the received data to the microprocessor 6 for logical judgment and authorization; after the authorization is finished, when the RFID system 5 swipes the contact type IC auxiliary card again, the RFID system 5 transmits the received unlocking data to the microprocessor 6, and executes unlocking logic so as to control the speed reducing motor 2 to drive unlocking; therefore, the utility model can realize unlocking by swiping the contact type IC main card and then swiping the contact type IC auxiliary card, realizes the function of authorized unlocking and double verification, compared with the existing mechanical lock, the utility model can effectively avoid other personnel from opening the mechanism box 18 of the circuit breaker privately, ensures the safety, and in the embodiment, the mortise door lock 1 can be arranged in the mechanism box 18 of the circuit breaker, avoids rusting, and can effectively shorten the unlocking time by swiping the IC card 4; in addition, the mortise door lock 1 can be unlocked by inserting a metal key into the lock cylinder 1.3 so as to avoid the failure of unlocking the IC card caused by accidental power loss, and therefore, the lock is unlocked in a mode of combining a mechanical key and the IC card so as to realize double guarantee.

The human body infrared induction electronic module 16 and the proximity switch 3 fixed on the end face of the lock catch box 1.4 of the mortise door lock 1 are also included; the model of the human body infrared induction electronic module 16 is HC-SR501, and the model of the proximity switch 3 is BF12J-CK 1; the human body infrared induction electronic module 16 and the proximity switch 3 are both electrically connected with the input end of the microprocessor 6; the probe of the human body infrared sensing electronic module 16 is LHI778, detects the radiation of infrared rays by utilizing the characteristic of temperature change, and inhibits the interference generated by the temperature change by adopting a double-sensitive element complementary method, thereby having stronger stability; when the door of the mechanism box 18 is closed, the proximity switch 3 sends a detected signal to the microprocessor 6, whether a person is on the spot is detected through the human body infrared induction electronic module 16, and when no person is detected, the microprocessor 6 drives the speed reduction motor 2 to automatically lock the mortise door lock 1, so that automatic monitoring and automatic locking can be realized; a probe of the human body infrared induction electronic module 16 is provided with a screw thread lens 17, a Fresnel lens, a screw thread lens and a sheet which is formed by injecting and pressing high-density polyolefin material; the Fresnel lens is arranged on the probe, so that the detection range can be enlarged, and the detection distance is increased.

The system also comprises a Hall element 11, a communication module 9, an Ali cloud Internet of things platform 13 and a mobile phone client 14; the communication module 9 adopts an M26 chip, and the model of the Hall element 11 is OH 137; the output end of the Hall element 11 is electrically connected with the input end of the microprocessor 6, the output end of the microprocessor 6 is electrically connected with the input end of the communication module 9, the output end of the communication module 9 is electrically connected with the SIM card 12, and the SIM card 12 is inserted into the SIM card 12 seat; the SIM card 12 is in signal connection with the input end of an Aliyun Internet of things platform 13 through an antenna, and the output end of the Aliyun Internet of things platform 13 is in signal connection with a mobile phone user end 14; an induction magnet 7 corresponding to the Hall element 11 is fixed on a bolt 1.1 of the mortise door lock 1; after the mortise door lock 1 is locked, the extending induction magnet 7 on the bolt 1.1 triggers the Hall element 11 and transmits a signal to the microprocessor 6, the signal is transmitted to the Aliskian Internet of things platform 13 through the SIM card 12 and the antenna by the communication module 9 serving as a transmitting end, and the Aliskian Internet of things platform 13 transmits the signal to the mobile phone user end 14, so that a user can remotely monitor the locking state of the mortise door lock 1; therefore, the position of the bolt 1.1 is detected by the Hall element 11 in cooperation with the induction magnet 7 on the bolt 1.1, and the changed magnetic field signal is converted into digital voltage to be output, so that the opening and closing state of the lockset can be remotely monitored.

The voltage reduction module 15 is electrically connected with the communication module 9; the voltage reduction module 15 is of a Luat5033s series, the working voltage of the communication module 9 is between 3.3V and 4.6V, and the power supply 19 adopts 4 dry batteries, and the voltage range is between 5V and 5.8V; therefore, it is necessary to provide a voltage-reducing module 15 for the M26 chip.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The transformer substation circuit breaker mechanism box lock comprises a mortise door lock; the RFID system is characterized by also comprising a speed reducing motor, an RFID system, an IC card and a microprocessor; driven external teeth are arranged on a lock tongue shifting fork of the mortise door lock, the speed reducing motor is fixed inside the mortise door lock, and an output gear of the speed reducing motor is in meshing transmission connection with the driven external teeth of the lock tongue shifting fork;

the IC card is in signal connection with the input end of the RFID system, the output end of the RFID system is electrically connected with the input end of the microprocessor, and the output end of the microprocessor is electrically connected with the speed reducing motor.

2. The substation breaker mechanism box lockset of claim 1 wherein said IC cards comprise a contact IC master card and a contact IC slave card.

3. The substation breaker mechanism box lockset of claim 1, further comprising a hall element, a communication module, an Aliyun Internet of things platform and a mobile phone user side;

the output end of the Hall element is electrically connected with the input end of the microprocessor, the output end of the microprocessor is electrically connected with the input end of the communication module, and the output end of the communication module is electrically connected with the SIM card; the SIM card is in signal connection with the input end of the Ali cloud Internet of things platform through an antenna, and the output end of the Ali cloud Internet of things platform is in signal connection with the mobile phone user side; and an induction magnet corresponding to the Hall element is fixed on a bolt of the mortise door lock.

4. The substation breaker mechanism box lock of claim 3, further comprising a voltage step-down module electrically connected with the communication module.

5. The substation breaker mechanism box lockset of any of claims 1 to 4, further comprising a human body infrared induction module and a proximity switch secured to a keeper face of the mortise lock; the human body infrared induction electronic module and the proximity switch are electrically connected with the input end of the microprocessor.

6. The substation breaker mechanism box lock of claim 5, wherein a threaded lens is mounted on a probe of the human infrared induction module.

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