CN107605255A - Five anti-smart lock of power distribution network outdoor equipment - Google Patents

Abstract

The invention provides a five-proof intelligent lock for outdoor equipment of distribution network, which includes a lock body, a lock rod elastically arranged on the lock body, a lock cylinder rotatably arranged in the lock body, fixedly connected with the lock cylinder in the lock body and The lock bolt movably matched with the lock rod, the pressure plate movably arranged in the lock body to control the opening and closing of the lock, the first and second pressure plate springs respectively supporting the pressure plate from the upper and lower sides in the lock body, and the electronically controlled unlocking assembly; The unlocking component includes a control board, a solenoid, a push rod, a return spring and 2 input electrodes. When in use, the smart lock gets electricity from the matching electronic key through the 2 input electrodes and verifies the authorization information of the electronic key. After that, the lock can be unlocked; at the same time, the lock can also be unlocked through the matching emergency mechanical key. The invention is easy to carry and use; the invention can improve the efficiency and accuracy of the inspection and unlocking of the power supply department, effectively prevent misoperation, and save the operation and maintenance cost of the five-proof lock for the outdoor equipment of the power supply department.

Description

Distribution network outdoor equipment five-proof smart lock

technical field

The invention relates to a protective lock for distribution network equipment, in particular to an intelligent lock for five defenses for outdoor equipment in a distribution network.

Background technique

In the power system, five preventions usually refer to the abbreviation of five anti-error functions for high-voltage electrical equipment to ensure personal safety, and it is one of the important measures for power safety. There are a large number of outdoor equipment in the distribution network, such as ring network cabinets, etc., which need to be protected by locks to prevent losses or accidents caused by unrelated personnel opening the equipment. At present, the locks used in outdoor distribution network equipment are usually mechanical padlocks. Since there are a large number of locking devices such as ring network cabinets and community substations in the same area, the number of padlocks is large. If each lock has a specific corresponding Keys, inspectors need to carry a large number of keys during outdoor inspections. On the one hand, it is inconvenient to carry. On the other hand, when they need to unlock and check the equipment, they need to search for the corresponding key among a large number of keys, which is time-consuming and labor-intensive. Waste of manpower. In order to solve this problem, the current practice of the power supply department is to use the same key to unlock the padlocks of the outdoor equipment in the same area, which can effectively solve the problems of inconvenient carrying a large number of keys and time-consuming rummaging for keys. However, it brings The new problem is: on the one hand, there are hidden dangers of misoperation. Taking the common ring network cabinets on the street and roadside as an example, since there are often many ring network cabinets on the same street (road), and the shape and color of the ring network cabinets are basically the same, although There is a number plate on the ring network cabinet, but when the number plate is unclear or falls off, or the inspection personnel are negligent, etc., the A ring network cabinet should be opened for inspection or operation, but the B ring network cabinet is opened, and the power distribution equipment is misoperated. It will bring economic losses and adverse effects, and even cause injury accidents in serious cases; on the other hand, due to the loss or duplication of keys, outdoor equipment in the distribution network may be stolen by illegal personnel (more copper) or artificially destroyed security risks. Therefore, it is very necessary to develop an easy-to-use, safe and reliable five-proof lockset for distribution network outdoor equipment.

Contents of the invention

The purpose of the present invention is to provide a five-proof intelligent lock for outdoor equipment of distribution network that is easy to carry and use, safe and reliable, and can effectively prevent misoperation in view of the problems in the prior art.

The technical solution of the present invention is: the five-proof intelligent lock for the outdoor equipment of the distribution network of the present invention includes a lock body, a lock rod spring arranged in the lock body, a lock rod elastically arranged on the lock body through the lock rod spring, A lock cylinder rotatably arranged in the lock body, a lock tongue fixedly connected with the lock cylinder in the lock body and movably matched with the lock rod, and an elastic limit pin arranged in the lock body to prevent the lock core from falling from the lock body; Its structural features are: it also includes a pressure plate movably arranged in the lock body for controlling the opening and closing of the lock, a first pressure plate spring and a second pressure plate which are arranged in the lock body to support the above pressure plate from above and below respectively and cooperate with the pressure plate. Spring and electric control unlocking components;

The electronically controlled unlocking assembly includes a control board, a solenoid, a push rod, a return spring, and two input electrodes that are located in the lock body and can be electrically connected to the outside; the return spring is sleeved on the push rod. The upper part; the lower end of the return spring is offset against the upper end of the solenoid; the middle and lower part of the ejector rod is inserted into the solenoid;

The above control board is equipped with a power conversion module, a signal decoupling analysis module, a main control MCU, a memory and an electromagnet drive module; the input terminal of the above power conversion module is electrically connected to two input electrodes; The board provides working power; the input terminal of the signal decoupling analysis module is electrically connected with two input electrodes; the main control MCU is electrically connected with the signal decoupling analysis module and the memory signal respectively; the signal input terminal of the electromagnet drive module is connected with the main control MCU The control signal output end is electrically connected; the power output end of the electromagnet drive module is electrically connected with the solenoid.

A further solution is: the upper and lower middle of the above-mentioned lock body is provided with a lock cylinder installation hole with an open left end; The core installation holes communicate with each other; the upper part of the pressure plate installation groove is provided with a solenoid installation sink hole whose lower port communicates with the pressure plate installation groove; the upper left part of the lock body is provided with a control board accommodation chamber; the lock body is provided with a There are 2 electrode passing holes, the upper port of the 2 electrode passing holes communicates with the control board accommodating cavity, and the lower port communicates with the lock cylinder installation hole of the lock body;

The above-mentioned lock cylinder is rotatably arranged in the lock cylinder installation hole of the lock body; the above-mentioned first pressure plate spring is arranged in the pressure plate installation groove of the lock body; the control board of the above-mentioned electric control unlocking assembly is arranged in the control board accommodation cavity of the lock body ; 2 input electrodes are respectively provided in the 2 electrode passage holes of the lock body; the above-mentioned ejector rod and return spring are fixed in the solenoid installation sink hole of the lock body, and the solenoid is fixed in the screw of the lock body The wire pipe is installed in the middle and lower part of the counterbore, and the bottom of the solenoid protrudes into the pressing plate mounting groove of the lock body.

A further solution is: the above-mentioned lock body is provided with a lock cylinder limit pin installation counterbore on the right side of the above-mentioned pressure plate installation groove; Position groove, and the position of the anti-drop limit groove matches the position of the counterbore for the lock cylinder limit pin of the lock body;

The above-mentioned elastic limit pin is composed of a pin rod and a spring; the pin rod and the spring are arranged in the counterbore of the lock cylinder limit pin of the lock body; the upper end of the pin rod offsets the spring; Fall into the limit groove.

A further solution is: the lower part of the above-mentioned lock body and the upper part on the right side are respectively provided with a counterbore for installing the lock rod; The left part of the upper cross bar of the lock bar is provided with a locking gap; the middle part of the lower cross bar of the lock bar is provided with a limit gap; The upper cross bar of the lock body is plugged into the lock rod installation counterbore on the upper right side of the lock body; Spring elastic contact of locking lever;

The shape of the upper end of the above-mentioned deadbolt matches the locking notch of the upper crossbar of the locking bar; the shape of the lower end of the deadbolt matches the limit notch of the lower crossbar of the locking bar.

A further solution is: the left side of the above-mentioned lock cylinder is provided with a circular counterbore with a left end opening as the electronic keyhole; the right part of the lock cylinder is provided with a rightward counterbore connected with the electronic keyhole, As a mechanical key hole; the lock cylinder is provided with an electronic key limit slot at the right end wall of the electronic key hole; the lock cylinder is provided with 2 conductive When locking, the two conductive beads are in contact with the two input electrodes of the above-mentioned electronically controlled unlocking component; the upper end of the middle part of the lock cylinder is provided with a downwardly recessed pressure plate relief groove, and the pressure plate relief groove is located in the lock body. The bottom of the pressure plate installation groove communicates with the pressure plate installation groove of the lock body; the middle part of the lock cylinder is provided with several movable blades, and the upper end of each blade communicates with the pressure plate relief groove of the lock cylinder;

The above-mentioned pressure plate can be movably arranged in the space formed by the butt joint of the pressure plate installation groove of the above-mentioned lock body and the pressure plate relief groove of the lock core, and the upper end surface of the pressure plate is against the lower end of the first pressure plate spring; the above-mentioned second pressure plate spring is arranged on the The pressure plate of the lock core is set aside in the groove, and the upper end of the second pressure plate spring is against the lower end surface of the pressure plate; the lower end of the second pressure plate spring is against the blade of the lock core.

A further solution is: there are two first pressing plate springs and two second pressing plate springs.

An electronic key for the above-mentioned five-proof intelligent lock of the outdoor equipment of the distribution network, and its structural characteristics are: it includes a casing and a circuit device;

The above-mentioned shell includes a main body part and a socket part which are integrally connected; the above-mentioned socket part is a cylindrical part, and a limit protrusion is provided on the socket part;

The circuit device includes an MCU, a signal and power coupling module, a second memory, a communication module, a SIM card, a lithium battery, a battery management module and a power module arranged in the housing, a key switch and an LCD display on the main body of the housing , USB interface and charging interface, and two ring-shaped output electrodes arranged on the peripheral wall of the socket part of the above-mentioned housing;

The signal and power coupling module, the second memory, the communication module, the battery management module, the key switch, the LCD display and the USB interface are respectively electrically connected to the MCU signal; the output electrodes are electrically connected to the signal and power coupling module; the SIM card is connected to the communication module Signal electrical connection; the battery management module is electrically connected to the lithium battery and the charging interface; the power module is electrically connected to the battery management module; where:

Key switch, used to control the on and off of the power supply and the on and off of remote wireless communication;

LCD display for real-time display of information;

The USB interface is used to connect with the management server of the power supply department when in use, so as to realize information exchange including obtaining the unlock key on the spot;

The charging interface is used to connect the external power supply to charge the lithium battery through the battery management module;

Lithium battery, responsible for power supply;

The battery management module, controlled by the MCU, is responsible for battery charging management, battery output control and battery undervoltage protection;

The power module is powered by the lithium battery through the battery management module, and provides working power for the circuit device after conversion;

SIM card, used to store unlock key and unlock authorization information;

The communication module is used to realize the remote information interaction between the electronic key and the management server, and the information interaction between the SIM card and the MCU;

The second memory is used for information storage and interaction with the MCU;

The signal and power coupling module is used to couple the unlock key information sent by the MCU with the power obtained from the power module and output the coupled power to the output electrode;

The output electrode is used for outputting the power coupled with unlocking key information.

The present invention has positive effects: (1) The five-proof intelligent lock for outdoor equipment of distribution network of the present invention is structurally designed so that when it is in use, the inspectors of the power supply department only need to carry an authorized electronic key. It can open the corresponding smart locks in the smart locks used by all the outdoor equipment of the distribution network in the same area, and the electronic key can be authorized by remote wireless communication on site, so that it can effectively solve the traditional method that the inspection personnel need to carry a large number of keys during outdoor inspections There are technical problems that it is inconvenient to carry, and it is time-consuming and laborious to search for the corresponding key among a large number of keys when unlocking. (2) The five-proof intelligent lock for outdoor equipment in distribution network of the present invention, when in use, through the key authorization verification mechanism between the intelligent lock and the electronic key, the inspection personnel can only open the inspection target within the specified time The smart lock on the smart lock can not be unlocked if the wrong lock is found or not within the specified time, so that it can effectively solve the technical problem of easy misoperation caused by using a key to open all the outdoor equipment padlocks of the distribution network in the same area in the prior art . (3) The five-proof smart lock for outdoor equipment in distribution network of the present invention, through the reasonable structural design of electronically controlled unlocking components and mechanical lock components in the lock body, makes the overall volume smaller and can be effectively applied to the current outdoor distribution network It is used for locking the equipment and has strong applicability. (4) The five-proof smart lock for outdoor equipment in the distribution network of the present invention, through structural design, can be unlocked by an electronic key, or by an emergency mechanical key when the electronic control unlocking component fails or in an emergency. On the basis of convenience and efficiency, safety and reliability are also guaranteed. (5) The five-proof intelligent lock for outdoor equipment in the distribution network of the present invention adopts the structural design of the electronically controlled unlocking component. When in use, the electronically controlled unlocking component is powered by the electronic key. The number of five-proof locks used in outdoor equipment is huge, so the smart lock of the present invention can greatly save the manpower, time and hardware costs for the maintenance of five-proof locks by the power supply management department. (6) The five-proof smart lock for outdoor equipment in distribution network of the present invention has a limit on the unlocking time of the electronic key authorized to unlock, and it will become invalid when it expires, so that it can effectively prevent the key from being lost or copied in the prior art. The outdoor equipment of the distribution network caused by the reason has the potential safety hazard of being stolen by illegal personnel and artificially destroyed.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the positional relationship between the pressing plate, the lock body and the lock cylinder when the present invention is locked;

Fig. 3 is a structural schematic diagram of the present invention when the electronic key is unlocked, and the figure also shows the cooperation relationship between the electronic key and the smart lock;

Fig. 4 is a schematic diagram of the positional relationship between the push rod, the pressure plate, the lock body and the lock cylinder of the electronically controlled unlocking assembly when the electronic key is unlocked according to the present invention;

Fig. 5 is a structural schematic diagram of the present invention when the emergency mechanical key is unlocked, and the figure also shows the cooperative relationship between the emergency mechanical key and the smart lock;

Fig. 6 is a schematic diagram of the positional relationship between the pressure plate, the lock body, the lock cylinder and the ejector pins of the electric control unlocking assembly when the emergency mechanical key is unlocked according to the present invention;

Fig. 7 is a schematic block diagram of the circuit structure of the electronically controlled unlocking assembly;

Fig. 8 is a schematic diagram of the external structure of the electronic key matched with the present invention;

Fig. 9 is the right view of Fig. 8;

Fig. 10 is a schematic block diagram of the circuit structure of the electronic key matched with the present invention.

The reference signs in the above-mentioned accompanying drawings are as follows:

Lock body 1, pressure plate installation groove 1-1; lock lever 2, lock lever spring 3, lock cylinder 4, electronic key hole 4-1, mechanical key hole 4-2, electronic key limit slot 4-3, conductive beads 4 -4, pressure plate relief groove 4-5, blade 4-6, anti-drop limit groove 4-7; deadbolt 5, elastic limit pin 6, pin rod 6-1, spring 6-2; pressure plate 7, the first A pressing plate spring 8, a second pressing plate spring 9, an electronically controlled unlocking assembly 10, a control board 10-1, an input electrode 10-2, a solenoid 10-3, a push rod 10-4, and a return spring 10-5.

Electronic key 100, main body 100-1, socket 100-2, limit protrusion 100-3, output electrode 100-4, key switch 100-5, LCD display 100-6, USB interface 100-7, charging interface 100-8;

Emergency mechanical key 101.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

(example)

In this embodiment, when describing the orientation, the direction facing in Figure 1 is taken as the front in the description, and the direction facing away from Figure 1 is taken as the rear in the description, and the up, down, left and right directions in Figure 1 are still described up and down, left and right directions.

See Figure 1 and Figure 2, the five-proof smart lock for outdoor equipment in the distribution network in this embodiment mainly consists of a lock body 1, a lock lever 2, a lock lever spring 3, a lock core 4, a lock tongue 5, and an elastic limit pin 6 , a pressing plate 7, a first pressing plate spring 8, a second pressing plate spring 9 and an electronically controlled unlocking assembly 10.

The lower part of the lock body 1 and the upper right side are respectively provided with a counterbore for installing a lock bar; Square recessed pressure plate installation groove 1-1, and the open end of pressure plate installation groove 1-1 communicates with the lock cylinder installation hole of lock body 1; The upper part of pressure plate installation groove 1-1 is provided with lower port and pressure plate installation groove 1- 1 connected solenoid installation counterbore; lock body 1 is provided with lock cylinder limit pin installation counterbore on the right side of its pressure plate installation groove 1-1; 1. There are 2 electrode passage holes at the bottom of the control board accommodation chamber. The upper ports of the 2 electrode passage holes are communicated with the control board accommodation chamber, and the lower ports are communicated with the lock cylinder installation hole of the lock body 1.

The lock bar 2 is a U-shaped bar body part composed of the upper cross bar, the lower cross bar and the right arc bar; the left part of the upper cross bar of the lock bar 2 is provided with a locking gap; the lower cross bar of the lock bar 2 The middle part of the rod is provided with a limit gap; the lock rod spring 3 is arranged at the left end of the lock rod installation sink hole at the lower part of the lock body 1; the upper cross bar of the lock rod 2 is inserted into the lock rod installation sink hole at the upper right side of the lock body 1 Inside; the lower cross bar of the lock bar 2 is plugged in the lock bar installation sink hole at the bottom of the lock body 1, and the left end of the lower cross bar of the lock bar 2 is in contact with the lock bar spring; the lock bar spring 3 is used for unlocking Lock lever 2 pops out to the right.

The lock cylinder 4 is rotatably arranged in the lock cylinder mounting hole of the lock body 1; the left side of the lock cylinder 4 is provided with a circular counterbore with a left end opening as the electronic key hole 4-1; The right part of 4-1 is provided with rightward counterbore, as mechanical key hole 4-2, the left end of mechanical key hole 4-2 communicates with the right end of electronic key hole 4-1; The right end wall body of -1 is provided with the electronic key limit groove 4-3 that communicates with electronic key hole 4-1; Lock core 4 is provided with 2 conductive beads 4 on the upper wall body of its electronic key hole 4-1 -4, and the positions of the two conductive beads 4-4 are matched with the positions of the two electrodes of the lock body 1 through the holes; the upper end of the middle part of the lock core 4 is provided with a downwardly concave pressure plate relief groove 4-5, and The pressure plate relief groove 4-5 is located below the pressure plate installation groove 1-1 of the lock body 1 and communicates with the pressure plate installation groove 1-1 of the lock body 1; the middle part of the lock cylinder 4 is provided with several movable blades 4-6 , the upper end of each blade 4-6 communicates with the pressure plate relief groove 4-5 of the lock core 4; the right part of the lock core 4 is provided with an annular anti-drop limit groove 4- 7. The position of the anti-drop limiting groove 4-7 matches the position of the counterbore for the lock cylinder limit pin of the lock body 1.

Dead bolt 5 is movably arranged in the lock body 1, and dead bolt 5 is arranged on the right part of lock core 4 and is fixedly connected with lock core 4 and follows lock core 4; The locking notch of the upper cross bar is matched;

Elastic limit pin 6 is made up of pin bar 6-1 and spring 6-2; Pin bar 6-1 and spring 6-2 are located in the lock core limit pin of lock body 1 and installs in counterbore; Pin bar 6-1 The upper end offsets the spring 6-2; the lower end of the pin rod 6-1 stretches into the anti-drop limit groove 4-7 of the lock core 4 under the elastic force of the spring 6-2, thereby preventing the lock core from falling through the elastic limit lock 6. 4 falls off from the lock cylinder mounting hole of the lock body 1.

The pressure plate 7 is movably located in the space formed by the butt joint of the pressure plate installation groove 1-1 of the lock body 1 and the pressure plate relief groove 4-5 of the lock core 4, and the upper end of the pressure plate 7 is installed with the pressure plate provided on the lock body 1. The lower ends of the two first pressure plate springs 8 in the groove 1-1 are offset; the lower ends of the pressure plate 7 are offset with the two second pressure plate springs 9 in the pressure plate relief groove 4-5 of the lock core 4; The upper end of the pressure plate spring 8 is against the lock body 1; the lower end of the two second pressure plate springs 9 is against the corresponding blades 4-6 on the lock core 4; Under the elastic force of the pressure plate spring 9, the pressure plate 7 is located at the junction of the pressure plate installation groove 1-1 of the lock body 1 and the pressure plate relief groove 4-5 of the lock core 4, thereby restricting the rotation of the lock core 4 relative to the lock body 1 to realize locking (as shown in picture 2).

The electric control unlocking assembly 10 includes a control board 10-1, an input electrode 10-2, a solenoid 10-3, a push rod 10-4 and a return spring 10-5. The control board 10-1 is arranged in the control board accommodation cavity of the lock body 1; the input electrode 10-2 is provided with 2, wherein one is a positive pole and the other is a negative pole; the input electrode as the positive pole also serves as a signal input terminal ; Two input electrodes 10-2 are respectively provided in the two electrode passage holes of the lock body 1, and each of the two input electrodes 10-2 is in contact with a conductive bead 4-4 of a lock cylinder 4 when locking; The return spring 10-5 is sleeved on the upper part of the push rod 10-4; the middle and lower part of the push rod 10-4 is inserted into the solenoid 10-3; the lower end of the return spring 10-5 is connected with the solenoid 10-3 The upper ends are offset; the solenoid 10-3 is fixed in the middle and lower part of the solenoid installation counterbore of the lock body 1, and the lower part of the solenoid 10-3 protrudes into the pressure plate installation groove 1-1 of the lock body 1 The material of the ejector rod 10-4 is an electromagnet, and the magnetic force generated by the solenoid 10-3 can make the ejector rod 10-4 overcome the elastic force of the return spring 10-5 and protrude downward from the solenoid 10-3, When solenoid 10-3 lost power, push rod 10-4 resets under the effect of back-moving spring 10-5.

Referring to Fig. 7, the control board 10-1 is provided with a power conversion module, a signal decoupling analysis module, a main control MCU, a memory and an electromagnet drive module, wherein:

The power conversion module is used to provide working power for the control board 10-1 when powered on; the power conversion module is electrically connected to the two input electrodes 10-2;

The signal decoupling analysis module is used to decouple and analyze the unlock key and authorization information sent by the electronic key from the power supply sent by the electronic key and send it to the main control MCU; the signal decoupling analysis module is connected with two input electrodes 10-2 electrical connection;

The main control MCU is used to judge whether the electronic key is authorized for unlocking, and accordingly controls whether the nut tube 10-3 is energized through the electromagnet drive module, so as to control whether the lock is unlocked; the main control MCU is electrically connected to the signal decoupling analysis module signal ;

The electromagnet drive module is used to control the power on and off of the solenoid 10-3 according to the control signal of the main control MCU; the electromagnet drive module is electrically connected to the signal of the main control MCU;

The memory is used for information storage and interaction with the main control MCU; the memory is electrically connected with the main control MCU with bidirectional signals.

The five-proof intelligent lock for the outdoor equipment of the distribution network in this embodiment, when in use, normally uses the electronic key 100 of matching design to unlock; the emergency mechanical key 101 is used as a backup for emergency unlocking.

Referring to Fig. 8 to Fig. 10, the electronic key 100 designed in conjunction with the five-proof smart lock for the outdoor equipment of the distribution network in this embodiment is mainly composed of a casing and a circuit device.

The shell includes a main body part 100-1 and a socket part 100-2 integrally connected; Cooperate; the upper right end of the socket part 100-2 is provided with a limit protrusion 100-3, and the limit protrusion 100-3 cooperates with the electronic key limit groove 4-3 of the lock cylinder 4 during use.

The circuit device includes an MCU, a signal and power supply coupling module, a second memory, a communication module, a SIM card, a lithium battery, a battery management module, a power supply module, an output electrode 100-4, a key switch 100-5, an LCD display 100-6, USB interface 100-7 and charging interface 100-8; wherein, MCU, signal and power coupling module, second memory, SIM card, communication module, lithium battery, battery management module and power module are arranged in the shell; output electrode 100- 4 There are 2, 2 output electrodes 100-4 are arranged on the peripheral wall of the socket part 100-2 of the shell in the shape of a ring; key switch 100-5, LCD display 100-6, USB interface 100- 7 and the charging interface 100-8 are arranged on the main body part 100-1 of the casing. The signal and power supply coupling module, the second memory, the communication module, the battery management module, the key switch 100-5, the LCD display 100-6 and the USB interface 100-8 are respectively electrically connected to the MCU signal; the output electrode 100-4 and the signal and The power coupling module is electrically connected; the SIM card is electrically connected to the communication module signal; the battery management module is electrically connected to the lithium battery and the charging interface 100-8 respectively; the power module is electrically connected to the battery management module.

The functions of each component of the circuit device of the electronic key 100 are as follows when in use:

The key switch 100-5 is used to control the opening and closing of the power supply and the opening and closing of the remote wireless communication;

LCD display 100-6 for real-time display of information;

The USB interface 100-7 is used for plugging with the management server of the power supply department to realize information exchange including obtaining the unlocking key on the spot;

Charging interface 100-8, used for external power supply, charging the lithium battery through the battery management module;

Lithium battery, responsible for power supply;

The battery management module, controlled by the MCU, is responsible for battery charging management, battery output control and battery undervoltage protection;

The power module is powered by the lithium battery through the battery management module, and provides working power for the circuit device after conversion;

SIM card, used to store unlock key and unlock authorization information;

The communication module is used to realize the remote information interaction between the electronic key and the management server, and the information interaction between the SIM card and the MCU;

The second memory is used for information storage and interaction with the MCU;

The signal and power supply coupling module is used to couple the unlock key information sent by the MCU with the power obtained from the power module, and output the power coupled with the unlock key information to the output electrode 100-4;

The output electrode 100-4 is used to output the power coupled with the unlock key information.

(Application example)

The five-proof smart lock for the outdoor equipment of the distribution network (hereinafter referred to as the smart lock) of the foregoing embodiments is applied to the locking of the outdoor equipment of the distribution network. Each smart lock has its own serial number information and key verification mechanism built into the main control MCU of the control panel 10-1 of its electronically controlled unlocking assembly 10; The key authorization mechanism of the key 100 cooperates.

The inspection personnel of the outdoor equipment in the power supply department only need to carry one electronic key 100 when carrying out the inspection operation; the inspection personnel can use the USB interface 100-7 of the electronic key 100 on the management server of the power supply department before departure. The unlocking key and unlocking authorization information can be obtained on the Internet, or the inspection personnel can remotely obtain the unlocking key and unlocking authorization information from the management server through wireless communication at the inspection and unlocking site; the unlocking authorization information of the electronic key 100 includes the key number, the smart Lock number, effective unlock start time and effective unlock end time information.

Referring to Fig. 3 and Fig. 4, when the lock needs to be unlocked, the inspector inserts the electronic key 100 into the electronic key hole 4-1 of the smart lock cylinder 4, and the electronic key 100 passes through the 2 holes on the housing socket 100-2. Two output electrodes 100-4 are electrically connected to two input electrodes 10-2 of the electronically controlled unlocking assembly 10 of the smart lock through two conductive beads 4-4 of the lock cylinder 4; -5 Turn on the electronic key, and the electronically controlled unlocking component 10 of the smart lock starts to work when the electronic key 100 is powered:

The signal decoupling analysis module on the control board 10-1 of the electronically controlled unlocking assembly 10 parses out the unlock key and the unlock authorization information from the power supply coupled with the unlock key and the unlock authorization information output by the electronic key 100 and sends them to the smart lock The main control MCU; the main control MCU extracts its own lock number, combines the key number, effective unlocking start time, effective unlocking end time, uses the existing technology DES encryption algorithm to calculate a verification key, and the obtained The verification key is compared with the unlocking key sent by the electronic key 100. If the two keys are not the same, or the current time is not between the effective unlocking start time and the effective unlocking end time, the main control MCU of the smart lock determines that the electronic key The key 100 is not authorized, and refuses to open the lock; if the two keys are the same, and the current time is between the start time of effective unlocking and the end time of effective unlocking, the main control MCU of the smart lock confirms that the electronic key 100 has been authorized. When the main control MCU supplies power to the solenoid 10-3 through the electromagnet drive module, the solenoid 10-3 generates magnetic force when the solenoid 10-3 is energized so that the ejector rod 10-4 made of the electromagnet overcomes the elastic force of the return spring 10-5 from the solenoid. 10-3 protrudes downward, and the push rod 10-4 pushes the pressure plate 7 down into the pressure plate relief groove 4-5 of the lock cylinder 4 (as shown in Figure 4); at this time, the electronic key 100 drives the lock cylinder 4 to rotate, When the lock core 4 rotates over a certain angle (preferably 3° in this embodiment), the conductive beads 4-4 on the lock core 4 are out of contact with the two input electrodes 10-2 of the electronically controlled unlocking assembly 10 of the smart lock, and the electric The control unlocking assembly 10 loses power, and the push rod 10-4 resets under the elastic force of the return spring 10-5; continue to rotate the lock core 4 so that the dead bolt 5 following the lock core 4 is separated from the lock rod 2, and the lock rod 2 is in the Under the action of the elastic force of the lock bar spring 3, it moves to the right to realize unlocking, and the inspectors can carry out maintenance to the corresponding outdoor equipment of distribution network. When the lock is locked after the inspection is completed, the inspectors drive the lock cylinder 4 to rotate in the opposite direction to the unlocking rotation direction through the electronic key 100. After the rotation is in place, the pressure plate 7 returns to the locked position under the reset elastic force of the second pressure plate spring 9 below it. At this time, the lock bar 2 is pressed down, and the lock bar 2 engages with the dead bolt 5 to realize locking; since the limit protrusion 100-3 on the shell of the electronic key 100 cooperates with the electronic key limit groove 4-3 of the lock cylinder 4, When making the lock, the lock core 4 must be returned to the initial lock position before the key can be pulled out, so as to ensure that the lock core 4 and the pressing plate 7 are accurately reset during the lock, so as to facilitate the next unlocking.

Referring to Figures 5 and 6, the emergency mechanical key 101 is used by the power supply management department as a backup for emergency unlocking. When a certain smart lock fails to unlock with the electronic key or is in an emergency state, the smart lock can be opened through the emergency mechanical key 101:

Insert the emergency mechanical key 101 into the mechanical key hole 4-2 of the lock cylinder 4, the blade 4-6 in the lock cylinder 4 moves left and right along the notch on the emergency mechanical key 101, the blade 4-6 and the groove on the emergency mechanical key 101 so that the pressure plate relief groove 4-5 of the lock cylinder 4 below the pressure plate 7 forms a complete plane, and the second pressure plate spring 9 generates a downward displacement, and the pressure plate 7 sinks into the pressure plate under the action of the first pressure plate spring 8. Position slot 4-5, use the emergency mechanical key 101 to drive the lock cylinder 4 to rotate in the lock body 1, so that the lock tongue 5 is separated from the lock rod 2, and the lock rod 2 moves to the right under the elastic force of the lock rod spring 3 to realize unlocking . The principle of unlocking with the emergency mechanical key 101 is the same as the principle of opening the blade lock with the mechanical key in the prior art, and will not be described in detail.

As can be seen from the foregoing, adopting the smart lock of the present invention for the outdoor equipment of the distribution network brings the following technical effects: First, under normal circumstances, the inspection personnel of the power supply department only need to carry an electronic key 100, and by obtaining the key , the electronic key 100 can be applied to the smart locks used by all the outdoor equipment of the distribution network in the same area, so that it can effectively solve the inconvenience of carrying a large number of keys when the inspection personnel carry out outdoor inspections in the traditional method, and need to use a large number of keys when unlocking. Searching for the corresponding key in the key is time-consuming and laborious; second, through the key authorization verification mechanism of the smart lock and the electronic key 100, the inspection personnel can only open the smart lock on the inspection target within the specified time, and find The lock cannot be unlocked by mistake or not within the specified time, thereby effectively solving the problem of misoperation caused by using one key to open the padlocks of all outdoor equipment in the same area in the prior art.

The above embodiments and application examples are descriptions of specific implementations of the present invention, rather than limitations of the present invention. Those skilled in the relevant technical fields can also make various transformations and changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the patent protection scope of the present invention.

Claims (7)

1. A five-proof smart lock for outdoor equipment in a distribution network, including a lock body (1), a lock bar spring (3) arranged in the lock body (1), and elastically set by the lock bar spring (3). The lock rod (2) on the lock body (1), the lock cylinder (4) rotatably arranged in the lock body (1), and the lock cylinder (4) arranged in the lock body (1) are fixedly connected with the lock cylinder (4) And the deadbolt (5) which is movably matched with the lock rod (2), and the elastic limit pin (6) arranged in the lock body (1) to prevent the lock cylinder (4) from falling from the lock body (1) ; It is characterized in that it also includes a pressing plate (7) movably arranged in the lock body (1) for controlling opening and closing, and a pressing plate (7) arranged in the lock body (1) for supporting the pressing plate (7) from above and below respectively. ) and the first pressure plate spring (8) and the second pressure plate spring (9) that are dynamically matched with the pressure plate (7) and the electronically controlled unlocking assembly (10); The electronically controlled unlocking assembly (10) includes a control board (10-1), a solenoid (10-3), a push rod (10-4), a return spring (10) arranged in the lock body (1) -5) and two input electrodes (10-2) which are arranged in the lock body (1) and can be electrically connected to the outside; the return spring (10-5) is sleeved on the upper part of the push rod (10-4) ;The lower end of the return spring (10-5) is against the upper end of the solenoid (10-3); the middle and lower part of the ejector rod (10-4) is plugged into the solenoid (10-3); The control board (10-1) is provided with a power conversion module, a signal decoupling analysis module, a main control MCU, a memory, and an electromagnet drive module; the input terminal of the power conversion module is connected to two input electrodes (10-2 ) electrical connection; when powered on, the power conversion module provides working power for the control board (10-1); the input terminal of the signal decoupling analysis module is electrically connected to the two input electrodes (10-2); the main control MCU is respectively connected to the signal decoupling The coupling analysis module is electrically connected to the memory signal; the signal input end of the electromagnet driving module is electrically connected to the control signal output end of the main control MCU; the power output end of the electromagnet driving module is electrically connected to the solenoid (10-3). 2. The five-proof intelligent lock for outdoor equipment of distribution network according to claim 1, characterized in that: the lock body (1) is provided with a lock cylinder installation hole with a left end opening in the middle of the lock body (1); the lock body (1) There is a pressure plate installation groove (1-1) concave upwards in the middle of the upper part, and the opening end of the pressure plate installation groove (1-1) communicates with the lock cylinder installation hole of the lock body (1); the pressure plate installation groove (1-1 ) is provided with a solenoid installation countersunk hole in which the lower port communicates with the pressure plate installation groove (1-1); the upper left part of the lock body (1) is provided with a control board accommodation chamber; the lock body (1) is accommodated on its control board The lower part of the cavity is provided with 2 electrode passing holes, the upper port of the 2 electrode passing holes communicates with the control board accommodation chamber, and the lower port communicates with the lock cylinder installation hole of the lock body (1); The lock cylinder (4) is rotatably set in the lock cylinder installation hole of the lock body (1); the first pressure plate spring (8) is set in the pressure plate installation groove (1-1) of the lock body (1) ; The control board (10-1) of the electronically controlled unlocking assembly (10) is set in the control board accommodation chamber of the lock body (1); 2 input electrodes (10-2) are located in the 2 poles of the lock body (1) One electrode is set in each passing hole; the ejector rod (10-4) and the return spring (10-5) are fixed in the solenoid installation sink hole of the lock body (1), and the solenoid (10-3 ) is fixed at the middle and lower part of the solenoid installation counterbore of the lock body (1), and the lower part of the solenoid (10-3) protrudes into the pressure plate installation groove (1-1) of the lock body (1). 3. The five-proof intelligent lock for outdoor equipment in distribution network according to claim 2, characterized in that: the lock body (1) is provided with a lock cylinder limit on the right side of the pressure plate installation groove (1-1) The pin is installed with a counterbore; the right part of the lock cylinder (4) is provided with an annular anti-drop limiting groove (4-7) recessed inward from the outer circumference of the lock cylinder (4), and the anti-fall limiting groove ( The position of 4-7) matches the position of the lock cylinder limit pin of the lock body (1) where the counterbore is installed; The elastic limit pin (6) is composed of a pin rod (6-1) and a spring (6-2); the pin rod (6-1) and the spring (6-2) are arranged on the lock core of the lock body (1) The limit pin is installed in the counterbore; the upper end of the pin rod (6-1) offsets the spring (6-2); the lower end of the pin rod (6-1) stretches elastically into the anti-drop limit groove ( 4-7) Inside. 4. The five-proof intelligent lock for outdoor equipment of distribution network according to claim 2, characterized in that: the lower part and the upper right part of the lock body (1) are respectively provided with a counterbore for installing a lock bar; the lock bar ( 2) It is an overall U-shaped bar body composed of the upper cross bar, the lower cross bar and the right arc bar; the left part of the upper cross bar of the lock bar (2) is provided with a locking gap; the lock bar (2) The middle part of the lower cross bar is provided with a limit gap; the lock bar spring (3) is set at the left end of the lock bar installation sink hole at the bottom of the lock body (1); the upper bar of the lock bar (2) is plugged into the lock The lock rod on the upper right side of the lock body (1) is installed in the sink hole; the lower cross bar of the lock rod (2) is inserted into the lock rod installation sink hole at the lower part of the lock body (1), and the lower cross bar of the lock rod (2) The left end of the rod is in elastic contact with the locking rod spring (3); The shape of the upper end of the lock tongue (5) matches the locking notch of the upper cross bar of the lock bar (2); the shape of the lower end of the lock tongue (5) matches the limit notch of the lower bar of the lock bar (2). Cooperate. 5. The five-proof intelligent lock for outdoor equipment of distribution network according to claim 2, characterized in that: the left side of the lock cylinder (4) is provided with a circular counterbore with a left end opening as an electronic key hole (4- 1); the lock cylinder (4) is provided with a counterbore to the right communicating with the electronic keyhole (4-1) on the right of its electronic keyhole (4-1), as a mechanical keyhole (4-2); The lock cylinder (4) is provided with the electronic key limiting slot (4-3) that the open end communicates with the electronic keyhole (4-1) on the right end wall body of its electronic keyhole (4-1); ) is provided with 2 conductive beads (4-4) on the upper wall of its electronic key hole (4-1), and when locked, the 2 conductive beads (4-4) are connected with the electronically controlled unlocking assembly (10) The two input electrodes (10-2) are in contact with each other; the upper middle part of the lock cylinder (4) is provided with a downwardly recessed pressure plate relief groove (4-5), and the pressure plate relief groove (4-5) is located at The bottom of the pressure plate installation groove (1-1) of the lock body (1) communicates with the pressure plate installation groove (1-1) of the lock body (1); the middle part of the lock cylinder (4) is provided with several movable blades ( 4-6), the upper end of each blade (4-6) communicates with the pressure plate relief groove (4-5) of the lock cylinder (4); The pressure plate (7) is movably arranged in the space formed by the docking of the pressure plate installation groove (1-1) of the lock body (1) and the pressure plate relief groove (4-5) of the lock cylinder (4), And the upper end surface of the pressure plate (7) is against the lower end of the first pressure plate spring (8); the second pressure plate spring (9) is set in the pressure plate relief groove (4-5) of the lock cylinder (4), and the second pressure plate spring (9) The upper end of the two pressure plate springs (9) is against the lower end surface of the pressure plate (7); the lower end of the second pressure plate spring (9) is against the blades (4-6) of the lock core (4). 6. The five-proof smart lock for outdoor equipment in distribution network according to any one of claims 1 to 5, characterized in that: there are two first pressure plate springs (8) and two second pressure plate springs (9). 7. An electronic key for the five-proof intelligent lock of the outdoor equipment of the distribution network according to claim 6, characterized in that: it includes a casing and a circuit device; The housing includes a body part (100-1) and a socket part (100-2) integrally connected; the socket part (100-2) is a cylinder, and the socket part (100-2) is provided with a limit bitprotrusion(100-3); The circuit device includes an MCU, a signal and power coupling module, a second memory, a communication module, a SIM card, a lithium battery, a battery management module, and a power module arranged in the casing, and the A key switch (100-5), an LCD display (100-6), a USB interface (100-7) and a charging interface (100-8), as well as being arranged on the peripheral wall of the housing socket (100-2) 2 ring-shaped output electrodes (100-4); The signal and power supply coupling module, the second memory, the communication module, the battery management module, the key switch (100-5), the LCD display (100-6) and the USB interface (100-8) are respectively electrically connected to the MCU signal; The output electrode (100-4) is electrically connected to the signal and power coupling module; the SIM card is electrically connected to the signal of the communication module; the battery management module is electrically connected to the lithium battery and the charging interface (100-8); the power module is electrically connected to the battery management module. connection; where: A key switch (100-5), used to control the on and off of the power supply and the on and off of the remote wireless communication; LCD display (100-6), used for real-time display of information; The USB interface (100-7) is used to connect with the management server of the power supply department when in use, so as to realize information exchange including obtaining the unlock key on the spot; Charging interface (100-8), used for external power supply when in use, charging the lithium battery through the battery management module; Lithium battery, responsible for power supply; The battery management module, controlled by the MCU, is responsible for battery charging management, battery output control and battery undervoltage protection; The power module is powered by the lithium battery through the battery management module, and provides working power for the circuit device after conversion; SIM card, used to store unlock key and unlock authorization information; The communication module is used to realize the remote information interaction between the electronic key and the management server, and the information interaction between the SIM card and the MCU; The second memory is used for information storage and interaction with the MCU; The signal and power coupling module is used to couple the unlock key information sent by the MCU with the power obtained from the power module and output the coupled power to the output electrode (100-4); The output electrode (100-4) is used for outputting the power coupled with unlocking key information.