CN110277259B - Logical sequential lock for electrical equipment and interlocking method thereof - Google Patents
Logical sequential lock for electrical equipment and interlocking method thereof Download PDFInfo
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- CN110277259B CN110277259B CN201910453457.0A CN201910453457A CN110277259B CN 110277259 B CN110277259 B CN 110277259B CN 201910453457 A CN201910453457 A CN 201910453457A CN 110277259 B CN110277259 B CN 110277259B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/267—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of two out of three switches, e.g. two switches each connecting a power supply to a busbar and a bus coupling switch interlocked in such a way that the power supplies are never connected in parallel
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Abstract
The invention discloses a logic sequential lock for electrical equipment and an interlocking method thereof, wherein the sequential lock comprises a panel (1) and a plurality of sequential locks; the panel is provided with a plurality of longitudinally arranged mounting holes (11), a plurality of sequential locks are arranged on the panel (1) through the mounting holes, and the surface of the panel at the edge of the mounting holes is provided with position marks; the sequential locks are arranged on the electrical equipment (6) through a panel, and each sequential lock comprises a lock head (2), a fixing screw (3), a lock tongue (4) and a lock sleeve (5); the lock head penetrates through the panel through the mounting hole, the lock sleeve is sleeved on the lock head, and the end part of a key (21) of the lock head is connected with the lock tongue through the synchronous jack (42); the lock head, the lock tongue and the lock sleeve are arranged on the panel through the fixing screws. The lock tongues are provided with interlocking notches (41) and are matched and attached with the edges of the lock tongues, so that two adjacent lock tongues can be interlocked or unlocked through the interlocking notches. The invention can complete the interlocking between the electrical equipment economically and efficiently and has high safety.
Description
Technical Field
The present invention relates to an interlock control device and method for electrical devices, and more particularly, to a logic sequence lock for electrical devices and an interlock method thereof.
Background
At present, in the interlocking connection between electrical devices, as the fields related to the electrical devices are more and more extensive, such as photovoltaic systems and diesel power generation systems, power failure is not allowed in control circuits, and a triple-lock two-key is widely introduced in the control circuits of the existing electrical devices as a common electrical safety operation guarantee mode. The three-lock two-key is an electrical cabinet or an electrical switch which can be operated by three keys, but 3 electrical switches are not allowed to be closed simultaneously, and only when one electrical switch is operated to be disconnected and the key is pulled out, the other electrical switch can be operated to be closed.
The three-lock two-key in the prior art is simple in design and small in application range, cannot meet the electrical control requirements of the existing electrical system, meanwhile, the requirements of users on electrical equipment are higher and higher, the requirements on logic controllability and safety of the electrical equipment are higher and higher, if interlocking among the electrical equipment is not controlled according to a certain logic sequence, accidents and equipment damage are easily caused in the field operation process, and personal safety injury is possibly caused.
Disclosure of Invention
The invention aims to provide a logic sequence lock for electrical equipment and an interlocking method thereof, which can economically and efficiently complete the interlocking between the electrical equipment and have high safety.
The invention is realized by the following steps:
a logical sequential lock for electrical equipment comprises a panel and a plurality of sequential locks; the panel is provided with a plurality of longitudinally arranged mounting holes, a plurality of sequential locks are correspondingly mounted on the panel through the mounting holes respectively, and the surface of the panel at the edge of the mounting holes is provided with position marks; the sequential locks are arranged on the electrical equipment through a panel, and each sequential lock comprises a lock head, a fixing screw, a lock tongue and a lock sleeve; the lock head penetrates through the panel through the mounting hole, the lock sleeve is sleeved on the lock head and is positioned on the inner side of the panel, the lock tongue is provided with an interlocking notch and a synchronous jack, the end part of a key of the lock head is connected with the lock tongue through the synchronous jack and drives the lock tongue to rotate synchronously, so that the lock tongues of two adjacent sequential locks can be matched and interlocked or unlocked through the interlocking notch; the lock head, the lock tongue and the lock sleeve are arranged on the panel through the fixing screws.
The position mark comprises a locking position and an unlocking position, and the key is rotated and aligned with the locking position or the unlocking position.
The sequential locks are longitudinally arranged, two interlocking notches which are symmetrically arranged are formed in the lock tongue at the top, the lock tongue at the bottom is provided with one interlocking notch, the middle lock tongues are provided with two interlocking notches, and the interlocking notches are matched and attached with the edges of the lock tongues, so that two adjacent lock tongues can be interlocked or unlocked through the interlocking notches.
The lock tongue is of a circular plate-shaped structure, the interlocking notch is of an arc-shaped structure with the same diameter as the lock tongue, and the arc-shaped edge of the lock tongue can be matched and attached with the arc-shaped structure of the interlocking notch.
The central axes of the two interlocking notches on the middle lock tongues are vertical to each other, namely the two interlocking notches are arranged at an interval of 90 degrees.
And a gasket is arranged between the fixing screw and the lock tongue.
The lock shell is arranged on the inner end face of the panel, and covers the lock shell and are sequentially locked.
An interlocking method for a logic sequence lock of electrical equipment is characterized in that a plurality of paths of sequence locks are formed on a panel from top to bottom, namely a first path of sequence lock and a second path of sequence lock … … nth path of sequence lock, the first path of sequence lock is connected with a mains supply system, and the second path of sequence lock to the nth path of sequence lock are connected with an uninterruptible power supply system; in the initial state, a plurality of paths of sequential lock keys are all in the locking position, and the keys are rotated to ensure that adjacent lock tongues are interlocked or unlocked through the interlocking notches; the interlocking method of the plurality of paths of sequential locks specifically comprises the following steps:
when the mains supply power supply system is required to supply power, the key of the first path of sequential lock is rotated to an unlocking position from a locking position, the lock tongue of the first path of sequential lock is synchronously rotated, two interlocking notches of the lock tongue of the first path of sequential lock are positioned at two sides, and the bottom edge of the lock tongue of the first path of sequential lock is matched and interlocked with the interlocking notches of the lock tongue of the second path of sequential lock; pulling out the key of the first path of sequential lock and inserting the key into a key hole of a lock head of a circuit breaker on the electrical equipment interlocked with the first path of sequential lock, and starting the circuit breaker of the commercial power supply system;
when the mains supply power supply system is not needed for supplying power, the key of the first path of sequence lock is rotated to the locking position from the locking position, the lock tongue of the first path of sequence lock is synchronously rotated, two interlocking notches of the lock tongue of the first path of sequence lock are positioned at the top and the bottom, a circuit breaker of the mains supply power supply system cannot be started, and the uninterrupted power supply system can be used for supplying power from the second path of sequence lock to the nth path of sequence lock respectively.
The method for supplying power by using the uninterruptible power supply system comprises the following steps:
i. the method for supplying power by adopting the uninterrupted power supply system through the second path of sequential lock comprises the following steps: the key of the first path of sequential lock is positioned at a locking position, the key of the second path of sequential lock is rotated to an unlocking position from the locking position, the lock tongue of the second path of sequential lock is synchronously rotated, so that the edge of the top of the lock tongue of the second path of sequential lock is matched and attached with the interlocking notch at the bottom of the lock tongue of the first path of sequential lock, and the bottom of the lock tongue of the second path of sequential lock is separated from the top of the lock tongue of the third logic lock through the interlocking notch; at the moment, the key of the second path of sequential lock can be pulled out and inserted into a keyhole of a lock head of a circuit breaker on the electrical equipment interlocked with the second path of sequential lock, and the circuit breaker of the uninterruptible power supply system is started;
the method for supplying power by adopting the uninterruptible power supply system through the third path sequence lock comprises the following steps: the key of the first way sequential lock is positioned at a locking position, the key of the second way sequential lock is positioned at an unlocking position, the top edge of the lock tongue of the second way sequential lock is matched and attached with the interlocking notch at the bottom of the lock tongue of the first way sequential lock, the key of the third way sequential lock is rotated to the unlocking position from the locking position, the lock tongue of the third way sequential lock is synchronously rotated, so that the bottom of the lock tongue of the second way sequential lock is matched and attached with the top edge of the lock tongue of the third way sequential lock through the interlocking notch, and the bottom of the lock tongue of the third way sequential lock is separated from the top of the lock tongue of the fourth way sequential; at the moment, the key of the third path of sequential lock can be pulled out and inserted into a key hole of a lock head of a circuit breaker on the electrical equipment interlocked with the key, and the circuit breaker of the uninterruptible power supply system is started;
in this way, the sequential lock of the fourth path to the sequential lock of the (n-1) path adopts a method of supplying power by an uninterrupted power supply system;
the method for supplying power by adopting the uninterruptible power supply system through the nth sequential lock comprises the following steps: the key of the first path of sequential lock is positioned at a locking position, the keys of the second path of sequential lock to the (n-1) th path of sequential lock are positioned at an unlocking position, the key of the nth path of sequential lock is rotated from the locking position to the unlocking position, and the lock tongue of the nth path of sequential lock is synchronously rotated, so that the top edge of the lock tongue of the next path of sequential lock is matched and attached with the interlocking notch at the bottom of the lock tongue of the previous path of sequential lock; at the moment, the key of the nth sequential lock can be pulled out and inserted into the keyhole of the lock head of the circuit breaker on the electrical equipment interlocked with the nth sequential lock, and the circuit breaker of the uninterruptible power supply system is started.
When the power supply of the commercial power supply system needs to be recovered, the keys of the nth path of sequential lock and the second path of sequential lock are sequentially rotated from the unlocking position to the locking position from bottom to top, the keys of the first path of sequential lock are rotated from the locking position to the unlocking position, and the circuit breaker of the commercial power supply system is started.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention greatly meets the requirements of users by controlling the logic sequence, is suitable for various electrical systems, and has wide application range; meanwhile, the interlocking among the electrical equipment can be controlled according to a certain logic sequence, so that the safety of the control of the electrical equipment operated on site by an operator is greatly improved, and the possibility of accidents is avoided.
2. The invention lays a technical foundation for realizing the logical interlocking of the electrical equipment, effectively ensures the logical interlocking process of the electrical equipment, and ensures the high efficiency, the economy and the safety of the logical interlocking of the electrical equipment.
Drawings
FIG. 1 is an exploded view of the logic sequence lock for an electrical device of the present invention;
FIG. 2 is a schematic diagram of the logic sequence lock for electrical equipment according to the present invention;
FIG. 3 is a rear side schematic view of the structure of FIG. 2;
FIG. 4 is a schematic view of the construction of the installed lock housing of FIG. 3;
FIG. 5 is an assembled front view of the logical sequence lock for an electrical device of the present invention;
FIG. 6 is a front view of a face plate of the logical sequence lock for electrical equipment of the present invention;
FIG. 7 is a state diagram of the latch bolt of the logic sequence lock for electrical equipment of the present invention powered by a mains power supply system;
FIG. 8 is a state diagram of the latch bolt of the logic sequence lock for electrical equipment of the present invention without the mains power supply system;
FIG. 9 is a state diagram of a deadbolt with a UPS powered by a second way sequential lock for the logical sequential lock of the electrical apparatus of the present invention;
FIG. 10 is a state diagram of a logic sequence lock for electrical equipment of the present invention employing a UPS powered deadbolt through a third sequence lock;
fig. 11 is a state diagram of a deadbolt of the logic sequence lock for electrical equipment of the present invention powered by a UPS through a fourth way sequence lock.
In the figure, 1 panel, 101 locking position, 102 unlocking position, 11 mounting holes, 2 lock heads, 21 keys, 3 fixing screws, 4 lock bolts, 41 interlocking notches, 42 synchronous jacks, 5 lock sleeves, 6 electrical equipment, 7 gaskets and 8 lock cases.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, a logic sequential lock for electrical equipment comprises a panel 1 and a plurality of sequential locks; the panel 1 is provided with a plurality of longitudinally arranged mounting holes 11, a plurality of sequential locks are correspondingly mounted on the panel 1 through the mounting holes 11 respectively, and position marks are arranged on the surface of the panel 1 at the edges of the mounting holes 11; referring to fig. 5, a plurality of sequential locks are mounted on an electrical apparatus 6 through a panel 1, each sequential lock includes a lock head 2, a set screw 3, a lock tongue 4 and a lock sleeve 5; the lock head 2 penetrates through the panel 1 through the mounting hole 11, the lock sleeve 5 is sleeved on the lock head 2 and is positioned on the inner side of the panel 1, the lock tongue 4 is provided with an interlocking notch 41 and a synchronous jack 42, the end part of a key 21 of the lock head 2 is connected with the lock tongue 4 through the synchronous jack 42 and drives the lock tongue 4 to rotate synchronously, so that the lock tongues 4 of two adjacent sequential locks can realize matching interlocking or unlocking through the interlocking notch 41; referring to fig. 2 and 3, a lock head 2, a bolt 4 and a lock sleeve 5 are mounted on a panel 1 through a fixing screw 3.
Referring to fig. 2 and 6, the position indicator includes a locking position 101 and an unlocking position 102, and the key 21 is turned and aligned with the locking position 101 or the unlocking position 102 to facilitate control of the interlocking and unlocking of the latch 4. Preferably, the locking position 101 and the unlocking position 102 are arranged at an interval of 90 °, i.e. the state of the key 21 corresponding to the locking position 101 is perpendicular to the state of the key 21 corresponding to the unlocking position 102. In the initial state, the keys 21 are all in the lock position 101.
Referring to fig. 1 and fig. 3, the sequential locks are arranged longitudinally, two interlocking recesses 41 are symmetrically arranged on the top latch bolt 4, one interlocking recess 41 is arranged on the bottom latch bolt 4, two interlocking recesses 41 are arranged on the middle latch bolts 4, and the interlocking recesses 41 are matched and attached to the edges of the latch bolts 4, so that two adjacent latch bolts 4 can be interlocked or unlocked through the interlocking recesses 41.
The lock tongue 4 is of a circular plate-shaped structure, the interlocking notch 41 is of an arc-shaped structure with the same diameter as the lock tongue 4, so that the arc-shaped edge of the lock tongue 4 can be matched and attached with the arc-shaped structure of the interlocking notch 41, the circular structure has good symmetry, and the interlocking reliability and the rotating smoothness between the adjacent lock tongues 4 are ensured.
The central axes of the two interlocking notches 41 on the middle lock tongues 4 are perpendicular to each other, that is, the two interlocking notches 41 are installed at an interval of 90 degrees and are used for being matched with the position marks, the key 21 is in an unlocking position 102 when rotating to the horizontal position, and the key 21 is in a locking position 101 when rotating to the vertical position.
A washer 7 is arranged between the fixing screw 3 and the lock tongue 4, so that the lock tongue 4 can be protected to a certain extent, and the rotation of the lock tongue 4 is not influenced.
Referring to fig. 4, a lock case 8 is installed on the inner end surface of the panel 1, and the lock case 8 covers a plurality of sequential locks, so as to protect and prevent dust for the sequential locks.
An interlocking method for logic sequential locks of electrical equipment, wherein a plurality of sequential locks, namely a first sequential lock and a second sequential lock … … nth sequential lock, are formed on a panel 1 from top to bottom, the first sequential lock is connected with a mains supply system, and the second sequential lock to the nth sequential lock are connected with an uninterruptible Power supply system, namely a UPS (uninterruptible Power system). In the initial state, the keys 21 of the several sequential locks are all in the locking position 101, and the adjacent lock tongues 4 are interlocked or unlocked by rotating the keys 21 through the interlocking notches 41.
The interlocking method of the multiple paths of sequential locks comprises the following steps:
referring to fig. 7, when the utility power supply system is needed to supply power, the key 21 of the first way of sequential lock is rotated from the locking position 101 to the unlocking position 102, the lock tongue 4 of the first way of sequential lock is synchronously rotated, so that the two interlocking notches 41 of the lock tongue 4 of the first way of sequential lock are positioned at two sides, and the bottom edge of the lock tongue 4 of the first way of sequential lock is matched and interlocked with the interlocking notches 41 of the lock tongue 4 of the second way of sequential lock; the key 21 of the first path sequential lock is pulled out and can be inserted into the key hole of the lock head of the circuit breaker on other electrical equipment interlocked with the key 21, and the circuit breaker of the commercial power supply system is started. Since the utility power system and the UPS system are not allowed to run in parallel, the keys 21 of the second way sequential lock to the nth way sequential lock are all in the locking position 101 and cannot be rotated.
Referring to fig. 8, when the power supply of the utility power supply system is not needed, the key 21 of the first way sequential lock is rotated from the unlocking position 102 to the locking position 101, and the lock tongue 4 of the first way sequential lock is synchronously rotated, so that the two interlocking notches 41 of the lock tongue 4 of the first way sequential lock are positioned at the top and the bottom. At this time, the key 21 of the first path sequential lock cannot be pulled out, and the circuit breaker of the commercial power supply system cannot be started. Under the state, the uninterrupted power supply system can be used for supplying power from the second path of sequential lock to the nth path of sequential lock according to requirements.
When the uninterruptible power supply system is required to supply power, namely the second UPS is adopted to supply power, the third UPS is adopted to supply power, or the fourth UPS is adopted to supply power:
referring to fig. 9, the uninterruptible power supply system may be powered by the second way sequential lock, and the specific operation method is as follows:
the key 21 of the first way sequential lock is positioned at the locking position 101 and cannot be rotated, the key 21 of the second way sequential lock is rotated to the unlocking position 102 from the locking position 101, the bolt 4 of the second way sequential lock is synchronously rotated, so that the top edge of the bolt 4 of the second way sequential lock is matched and attached with the interlocking notch 41 at the bottom of the bolt 4 of the first way sequential lock, and the bottom of the bolt 4 of the second way sequential lock is separated from the top of the bolt 4 of the third way sequential lock through the interlocking notch 41. At the moment, the key 21 of the second path sequential lock can be pulled out and can be inserted into the keyhole of the lock head of the circuit breaker on other electrical equipment interlocked with the second path sequential lock to start the circuit breaker of the UPS power supply system, at the moment, the third path sequential lock and the fourth path sequential lock are in the locking position, and the third path sequential lock and the fourth path sequential lock can be sequentially unlocked according to the logic sequence in the state that the second path sequential lock is unlocked.
Referring to fig. 10, the third way sequential lock may be used to supply power by an uninterruptible power supply system, and the specific operation method is as follows:
the key 21 of the first way sequential lock is located at a locking position 101 and cannot be rotated, the key 21 of the second way sequential lock is located at an unlocking position 102, the top edge of the lock tongue 4 of the second way sequential lock is matched and attached with the interlocking notch 41 at the bottom of the lock tongue 4 of the first way sequential lock, the key 21 of the third way sequential lock is rotated to the unlocking position 102 from the locking position 101, the lock tongue 4 of the third way sequential lock is synchronously rotated, so that the bottom of the lock tongue 4 of the second way sequential lock is matched and attached with the top edge of the lock tongue 4 of the third way sequential lock through the interlocking notch 41, the bottom of the lock tongue 4 of the third way sequential lock is separated from the top of the lock tongue 4 of the fourth way sequential lock through the interlocking notch 41, and the key 21. At the moment, the key 21 of the third path sequential lock can be pulled out and can be inserted into the keyhole of the lock head of the circuit breaker on other electrical equipment interlocked with the third path sequential lock to start the circuit breaker of the UPS power supply system, at the moment, the fourth path sequential lock is in a locking state, and the fourth path sequential lock can be unlocked according to a logic sequence in the state that the third path sequential lock is unlocked.
According to the law, the sequential lock from the fourth path to the n-1 path adopts a method of supplying power by an uninterrupted power supply system.
Referring to fig. 11, the nth sequential lock may be powered by an uninterruptible power supply system, and the specific operation method is as follows:
the key 21 of the first path of sequential lock is located at a locking position 101 and cannot be rotated, the keys 21 of the second path of sequential lock to the n-1 th path of sequential lock are located at an unlocking position 102, the key 21 of the nth path of sequential lock is rotated to the unlocking position 102 from the locking position 101, the lock tongue 4 of the nth path of sequential lock is synchronously rotated, the top edge of the lock tongue 4 of the next path of sequential lock is matched and attached with the interlocking notch 41 at the bottom of the lock tongue 4 of the previous path of sequential lock, and the keys 21 of the second path of sequential lock to the n-1 th path of sequential lock cannot be rotated. At this time, the key 21 of the nth sequential lock can be pulled out and can be inserted into the keyhole of the lock head of the circuit breaker on other electrical equipment interlocked with the nth sequential lock to start the circuit breaker of the UPS power supply system.
When the power supply of the commercial power supply system needs to be restored, the key 21 of the nth sequential lock and the key 21 of the second sequential lock are sequentially rotated from the unlocking position 102 to the locking position 101 from bottom to top, the key 21 of the first sequential lock is rotated from the locking position 101 to the unlocking position 102, and the circuit breaker of the commercial power supply system is started.
Example (b):
referring to fig. 1 to 6, the logic sequential lock for electrical equipment of the present invention includes a panel 1 and 4 sequential locks, wherein 4 longitudinally arranged mounting holes 11 are disposed on the panel 1 for matching and mounting the 4 sequential locks, the top of the mounting hole 11 is used for identifying a locking position 101, and the illustrated left side of the mounting hole 11 is used for identifying an unlocking position 102, i.e. when a key 21 of a lock head 2 is rotated to a vertical state, the key 21 of the lock head 2 is rotated to a horizontal state, the lock is locked. The 4 locks 2 of the sequential lock are inserted into the mounting holes 11 and then sequentially sleeved in the lock sleeve 5, the lock tongue 4 and the gasket 7, and then fixed through the fixing screws 3, and the cover covers the lock shell 8 and then is fixed on the electrical equipment 6 through bolts, so that the installation is completed.
Preferably, the fixing screw 3 can adopt an M4 screw, and the gasket 7 can adopt an M4 gasket matched with the fixing screw 3, so that the assembly and disassembly are convenient, and the matching degree is high. The matching jack 42 at the center of the bolt 4 can be arranged into a rectangle and matched with the inner end of the key 21, so that the key 21 can drive the bolt 4 to rotate. Spring bolt 4 of 4 order locks is spring bolt A, spring bolt B, spring bolt C and spring bolt D from top to bottom in proper order, and 4 order locks form first way order lock, second way order lock, third way order lock and fourth way order lock by supreme down, and first way order lock is used for the mains supply system power supply, and second way order lock, third way order lock and fourth way order lock all are used for the UPS system power supply, and mains supply system and UPS system can not supply power simultaneously.
Referring to fig. 7 to 11, the interlocking method of the logic sequence lock for the electrical device according to the present invention is as follows:
the key 21 of the first path sequential lock is rotated from the locking position 101 to the unlocking position 102 so that the key can be pulled out and can be inserted into a key hole of a circuit breaker interlocked with the key to start the circuit breaker of the commercial power supply system. The keys 21 of the second, third and fourth way sequence locks can not be rotated, namely, are in the locking position 101. The interlocking notch 41 of the bolt A is symmetrically positioned on two sides of the bolt A, the two interlocking notches 41 of the bolt B and the bolt C are positioned on the top and the left side, and the interlocking notch 41 of the bolt D is positioned on the top, so that the bolt A, the bolt B, the bolt C and the bolt D are sequentially matched and interlocked from top to bottom through the interlocking notch 41 and the arc edge.
The key 21 of the first way sequential lock is rotated from the unlocking position 102 to the locking position 101, and the bolt A is synchronously rotated to the position shown in the figure. At this time, the key 21 of the first path sequential lock cannot be pulled out, and the circuit breaker of the commercial power supply system cannot be started. That is, the interlocking notch 41 of the latch bolt a is symmetrically located at the top and bottom of the latch bolt a. In this state, the UPS system may be used to supply power.
If the second road sequence lock needs to be powered by the UPS system, the key 21 of the second road sequence lock can be rotated from the locking position 101 to the unlocking position 102, and the bolt B is synchronously rotated to the position shown in the figure. At the moment, the key 21 can not be rotated by the first way sequential lock, and the key 21 of the second way sequential lock can be pulled out and can be inserted into a key hole of a circuit breaker on other electrical equipment interlocked with the first way sequential lock to start the circuit breaker of the UPS power supply system. That is, the interlocking notches 41 of the bolt a are symmetrically positioned at the top and the bottom of the bolt a, the two interlocking notches 41 of the bolt B are positioned at the left side and the bottom of the bolt B, and the interlocking notches 41 at the bottom of the bolt a are matched and attached with the arc edge at the top of the bolt B to realize interlocking.
If the third sequential lock needs to be powered by a UPS system, the key 21 of the third sequential lock can be rotated from the locking position 101 to the unlocking position 102, and the bolt C is synchronously rotated to the position shown in the figure. At the moment, the first path sequential lock and the second path sequential lock can not rotate the keys 21, and the key 21 of the third path sequential lock can be pulled out and inserted into the key hole of the circuit breaker on other electrical equipment interlocked with the third path sequential lock to start the circuit breaker of the UPS power supply system. That is, the interlocking notch 41 of the bolt a is symmetrically located at the top and the bottom of the bolt a, the two interlocking notches 41 of the bolt B and the bolt C are both located at the left side and the bottom, and the bolt a to the bolt C are sequentially matched and attached with the arc edge of the top through the interlocking notch 41 at the bottom to realize interlocking.
If the UPS system is needed to supply power through the fourth sequential lock, the key 21 of the fourth sequential lock can be rotated from the locking position 101 to the unlocking position 102, and the bolt D is synchronously rotated to the position shown in the figure. At the moment, the first way sequential lock, the second way sequential lock and the third way sequential lock can not rotate the keys 21, and the key 21 of the fourth way sequential lock can be pulled out and can be inserted into key holes of circuit breakers on other electrical equipment interlocked with the fourth way sequential lock to start the circuit breakers of the UPS power supply system. That is, the interlocking notch 41 of the bolt a is symmetrically located at the top and the bottom of the bolt a, the two interlocking notches 41 of the bolt B and the bolt C are both located at the left side and the bottom, the interlocking notch 41 of the bolt D is located at the left side, and the bolts a to D are sequentially matched and attached with the arc edge at the top through the interlocking notch 41 at the bottom to realize interlocking.
When the power supply of the commercial power supply system needs to be restored, the keys 21 of the fourth path sequential lock, the third path sequential lock and the second path sequential lock are sequentially rotated from the unlocking position 102 to the locking position 101, the key 21 of the first path sequential lock is rotated from the locking position 101 to the unlocking position 102, and the circuit breaker of the commercial power supply system is started.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An interlocking method of a logic sequence lock for electrical equipment is characterized in that: the interlocking method is realized based on a logic sequence lock for the electrical equipment, wherein the logic sequence lock for the electrical equipment comprises a panel (1) and a plurality of sequence locks; the panel (1) is provided with a plurality of longitudinally arranged mounting holes (11), a plurality of sequential locks are correspondingly mounted on the panel (1) through the mounting holes (11), and position marks are arranged on the surface of the panel (1) at the edges of the mounting holes (11); the sequential locks are arranged on the electrical equipment (6) through the panel (1), and each sequential lock comprises a lock head (2), a fixing screw (3), a lock tongue (4) and a lock sleeve (5); the lock head (2) penetrates through the panel (1) through the mounting hole (11), the lock sleeve (5) is sleeved on the lock head (2), the lock sleeve (5) is located on the inner side of the panel (1), the lock tongue (4) is provided with an interlocking notch (41) and a synchronous jack (42), the end part of a key (21) of the lock head (2) is connected with the lock tongue (4) through the synchronous jack (42) and drives the lock tongue (4) to rotate synchronously, so that the lock tongues (4) of two adjacent sequential locks can be matched and interlocked or unlocked through the interlocking notch (41); the lock head (2), the lock tongue (4) and the lock sleeve (5) are arranged on the panel (1) through the fixing screw (3); the position mark comprises a locking position (101) and an unlocking position (102), and the key (21) is rotated and aligned with the locking position (101) or the unlocking position (102);
a plurality of paths of sequential locks are formed on the panel (1) from top to bottom, namely a first path of sequential lock and a second path of sequential lock … …, wherein the first path of sequential lock is connected with a mains supply system, and the second path of sequential lock to the nth path of sequential lock are connected with an uninterruptible power supply system; in the initial state, a plurality of paths of sequential lock keys (21) are all in a locking position (101), and the keys (21) are rotated to enable adjacent lock tongues (4) to be interlocked or unlocked through interlocking notches (41); the interlocking method of the plurality of paths of sequential locks specifically comprises the following steps:
when a mains supply power supply system is required to supply power, a key (21) of a first path of sequential lock is rotated to an unlocking position (102) from a locking position (101), a bolt (4) of the first path of sequential lock is synchronously rotated, two interlocking notches (41) of the bolt (4) of the first path of sequential lock are positioned at two sides, and the bottom edge of the bolt (4) of the first path of sequential lock is matched and interlocked with the interlocking notches (41) of the bolt (4) of a second path of sequential lock; pulling out a key (21) of the first path sequential lock and inserting the key into a key hole of a lock head of a circuit breaker on the electrical equipment interlocked with the key, and starting the circuit breaker of the commercial power supply system;
when the mains supply power supply system is not needed for supplying power, the key (21) of the first path of sequential lock is rotated to the locking position (101) from the unlocking position (102), the lock tongue (4) of the first path of sequential lock is synchronously rotated, so that the two interlocking notches (41) of the lock tongue (4) of the first path of sequential lock are positioned at the top and the bottom, a circuit breaker of the mains supply power supply system cannot be started, and the uninterrupted power supply system can be used for supplying power from the second path of sequential lock to the nth path of sequential lock respectively.
2. The interlocking method of a logical sequential lock for electrical equipment according to claim 1, characterized in that: the lock tongue (4) is of a circular plate-shaped structure, the interlocking notch (41) is of an arc-shaped structure with the same diameter as the lock tongue (4), and the arc-shaped edge of the lock tongue (4) can be matched and attached with the arc-shaped structure of the interlocking notch (41);
the method for supplying power by using the uninterruptible power supply system comprises the following steps:
i. the method for supplying power by adopting the uninterrupted power supply system through the second path of sequential lock comprises the following steps: the key (21) of the first way of sequential lock is positioned at a locking position (101), the key (21) of the second way of sequential lock is rotated to an unlocking position (102) from the locking position (101), the bolt (4) of the second way of sequential lock is synchronously rotated, the edge of the top of the bolt (4) of the second way of sequential lock is matched and attached with the interlocking notch (41) at the bottom of the bolt (4) of the first way of sequential lock, and the bottom of the bolt (4) of the second way of sequential lock is separated from the top of the bolt (4) of the third way of sequential lock through the interlocking notch (41); at the moment, the key (21) of the second path of sequential lock can be pulled out and inserted into the keyhole of the lock head of the circuit breaker on other electrical equipment interlocked with the key, and the circuit breaker of the uninterrupted power supply system is started;
the method for supplying power by adopting the uninterruptible power supply system through the third path sequence lock comprises the following steps: the key (21) of the first way sequential lock is located at a locking position (101), the key (21) of the second way sequential lock is located at an unlocking position (102), the top edge of the bolt (4) of the second way sequential lock is matched and attached with the interlocking notch (41) at the bottom of the bolt (4) of the first way sequential lock, the key (21) of the third way sequential lock is screwed to the unlocking position (102) from the locking position (101), the bolt (4) of the third way sequential lock is synchronously screwed, so that the bottom of the bolt (4) of the second way sequential lock is matched and attached with the top edge of the bolt (4) of the third way sequential lock through the interlocking notch (41), and the bottom of the bolt (4) of the third way sequential lock is separated from the top of the bolt (4) of the fourth way sequential lock through the interlocking notch (41); at the moment, a key (21) of the third path of sequential lock can be pulled out and inserted into a keyhole of a lock head of a breaker on the electrical equipment interlocked with the key, and the breaker of the uninterruptible power supply system is started;
in this way, the sequential lock of the fourth path to the sequential lock of the (n-1) path adopts a method of supplying power by an uninterrupted power supply system;
the method for supplying power by adopting the uninterruptible power supply system through the nth sequential lock comprises the following steps: the key (21) of the first path of sequential lock is positioned at a locking position (101), the keys (21) of the second path of sequential lock to the (n-1) th path of sequential lock are all positioned at an unlocking position (102), the key (21) of the nth path of sequential lock is screwed to the unlocking position (102) from the locking position (101), and the lock tongue (4) of the nth path of sequential lock is synchronously screwed, so that the top edge of the lock tongue (4) of the next path of sequential lock is matched and attached with the interlocking notch (41) at the bottom of the lock tongue (4) of the previous path of sequential lock; at the moment, the key (21) of the nth way sequential lock can be pulled out and inserted into a keyhole of a lock head of a circuit breaker on the electrical equipment interlocked with the nth way sequential lock, and the circuit breaker of the uninterruptible power supply system is started.
3. The interlocking method of a logical sequential lock for electrical equipment according to claim 2, characterized in that: when the power supply of the commercial power supply system needs to be restored, the key (21) of the nth path of sequential lock and the key (21) of the second path of sequential lock are sequentially rotated from the unlocking position (102) to the locking position (101) from bottom to top, the key (21) of the first path of sequential lock is rotated from the locking position (101) to the unlocking position (102), and the circuit breaker of the commercial power supply system is started.
4. The interlocking method of a logical sequential lock for electrical equipment according to claim 1, characterized in that: a plurality of lock is vertically arranged in sequence, two interlocking notches (41) which are symmetrically arranged are arranged on the bolt (4) positioned at the top, the bolt (4) positioned at the bottom is provided with one interlocking notch (41), a plurality of bolts (4) in the middle are provided with two interlocking notches (41), the edges of the interlocking notches (41) and the bolt (4) are matched and attached, and two adjacent bolts (4) can be interlocked or unlocked through the interlocking notches (41).
5. The interlocking method of a logical sequential lock for electrical equipment according to claim 4, wherein: the central axes of the two interlocking notches (41) on the middle lock tongues (4) are vertical to each other, namely the two interlocking notches (41) are arranged at intervals of 90 degrees.
6. The interlocking method of a logical sequential lock for electrical equipment according to claim 1, characterized in that: and a gasket (7) is arranged between the fixing screw (3) and the lock tongue (4).
7. The interlocking method of a logical sequential lock for electrical equipment according to claim 1, characterized in that: the lock shell (8) is installed on the inner end face of the panel (1), and the lock shell (8) covers the plurality of sequential locks.
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