Ground line operation sequence lockout device, method, and assembly

Abstract

The application relates to the technical field of electric power safety tools, and provides a grounding wire operation sequence locking device, method and assembly, which comprises a grounding end state detection assembly configured to detect the clamping state of a grounding end and output a grounding end state signal; a conductor end state detection assembly configured to detect the clamping state of a conductor end and output a conductor end state signal; an intelligent locking controller electrically connected with the grounding end and conductor end state detection assemblies respectively; a first locking execution mechanism controlled by the intelligent locking controller and limiting a conductor end operation mechanism; and a second locking execution mechanism controlled by the intelligent locking controller and limiting a grounding end operation mechanism. The application realizes forced locking of the grounding wire mounting and dismounting sequence through electromechanical sensing and intelligent control, eliminates the defects of a mechanical key transmission mode, and improves operation safety and reliability.

Description

Technical Field

[0001] This application relates to the field of electrical safety tools and equipment technology, specifically to grounding wire operation sequence interlocking devices, methods, and components. Background Technology

[0002] During power outage maintenance of transmission lines, installing grounding wires is a crucial technical measure to ensure the personal safety of workers. Relevant safety regulations strictly stipulate that when installing grounding wires, the grounding end must be installed first, followed by the conductor end, and the removal sequence is reversed. In existing technologies, to prevent the operation process from being reversed, a mechanical interlocking key is typically used to physically transfer between the conductor clamp and the grounding clamp to achieve forced interlocking. However, this purely mechanical interlocking scheme has significant drawbacks in practical applications: firstly, the mechanical key, as an independent component, is easily lost or damaged, leading to interlocking failure; secondly, the mechanical transmission structure is prone to wear, corrosion, or jamming in harsh outdoor environments, resulting in poor operating feel or even inability to unlock properly, seriously affecting work efficiency and safety. Therefore, there is an urgent need for a grounding wire operation sequence interlocking device that can overcome the shortcomings of purely mechanical interlocking and improve operational reliability and safety. Summary of the Invention

[0003] To address the problems of cumbersome operation, easy wear and jamming, and low reliability of existing purely mechanical interlocking devices, this application realizes forced interlocking of the grounding wire installation and removal sequence based on electromechanical sensing and intelligent control through a grounding wire operation sequence interlocking device, method, and components.

[0004] To achieve the above objectives, this application adopts the following technical solution: A grounding wire operation sequence interlocking device includes: a grounding end status detection component configured to detect the clamping state of the grounding end and output a grounding end status signal; a conductor end status detection component configured to detect the clamping state of the conductor end and output a conductor end status signal; an intelligent interlocking controller electrically connected to the grounding end status detection component and the conductor end status detection component respectively; a first interlocking execution mechanism controlled by the intelligent interlocking controller and configured to limit the conductor end operation mechanism; and a second interlocking execution mechanism controlled by the intelligent interlocking controller and configured to limit the grounding end operation mechanism; wherein the intelligent interlocking controller is configured to: based on the grounding end status signal and the conductor end status signal, and according to a preset installation / removal sequence logic, control the locking or unlocking states of the first interlocking execution mechanism and the second interlocking execution mechanism to achieve forced interlocking of the grounding wire installation / removal sequence.

[0005] The above solution obtains the clamping position signal in real time by setting up independent grounding and conductor end status detection components, and the intelligent locking controller automatically drives the corresponding locking actuator according to preset logic, replacing the traditional mechanical key transmission method and eliminating the safety hazards caused by mechanical wear and human negligence.

[0006] In one embodiment, the grounding end state detection component includes a grounding end armature and a grounding end position sensor, and the conductor end state detection component includes a conductor end armature and a conductor end position sensor; the grounding end armature and the conductor end armature are configured to move to a predetermined position when compressed, and the grounding end position sensor and the conductor end position sensor are configured to detect whether the grounding end armature and the conductor end armature have moved to the predetermined position respectively, and output a position signal to the intelligent interlocking controller when the grounding end armature or the conductor end armature is detected to have moved to the predetermined position.

[0007] In one embodiment, the first locking actuator includes a handle locking linkage, which is configured to restrict the operation handle from rotating in the loosening direction; the second locking actuator includes a grounding clamp locker, which is configured to restrict the grounding clamp from moving in the releasing direction.

[0008] In one embodiment, it further includes a lower armature housing and a vertical transmission member; the lower end of the vertical transmission member extends at least partially into the lower armature housing; the grounding armature is disposed in the lower armature housing and configured to move with the vertical transmission member; the grounding end position sensor is disposed on the side wall of the lower armature housing, and the detection end of the grounding end position sensor is directed toward the movement path of the grounding end armature.

[0009] In one embodiment, the conductor end state detection component further includes a conductor end clamp, in which three conductor end armatures are disposed; the three conductor end armatures are configured to be pushed to their respective armature storage positions by conductor compression in order to trigger the conductor end position sensor.

[0010] In one embodiment, the operating handle is tilted and hinged to the middle of the grounding wire operation sequence locking device; the handle locking linkage is disposed at the rotation connection of the operating handle or at its vicinity to restrict the operating handle from rotating in the loosening direction; the grounding clamp locker is located below the outer side of the lower armature housing.

[0011] In one embodiment, a support frame and a spring are also included; the support frame has a C-shaped structure, and the spring is sleeved on the upper part of the vertical transmission member and configured to provide an elastic restoring force to the vertical transmission member.

[0012] In one implementation, the intelligent interlocking controller is electrically connected to the grounding terminal status detection component, the conductor terminal status detection component, the first interlocking actuator, and the second interlocking actuator, respectively; the intelligent interlocking controller is configured to receive the grounding terminal status signal and the conductor terminal status signal, and output control commands to the first interlocking actuator and the second interlocking actuator.

[0013] Furthermore, this application also provides a grounding wire operation sequence interlocking method, applied to a grounding wire operation sequence interlocking device. The grounding wire operation sequence interlocking device includes a grounding end state detection component, a conductor end state detection component, an intelligent interlocking controller, a first interlocking execution mechanism, a second interlocking execution mechanism, a conductor end operating mechanism, and a grounding end operating mechanism. The method includes: during interlocking installation, in response to the grounding end state detection component detecting that the grounding end is clamped in place, the intelligent interlocking controller controls the first interlocking execution mechanism to release the limit on the conductor end operating mechanism; in response to the conductor end state detection component detecting that the conductor end is clamped in place, the intelligent interlocking controller controls the second interlocking execution mechanism to lock the grounding end operating mechanism; during interlocking removal, in response to the conductor end state detection component detecting that the conductor end is disengaged, the intelligent interlocking controller controls the second interlocking execution mechanism to release the limit on the grounding end operating mechanism; in response to the grounding end state detection component detecting that the grounding end is disengaged, the intelligent interlocking controller controls the first interlocking execution mechanism to lock the conductor end operating mechanism.

[0014] In addition, this application also provides a grounding wire assembly, including a grounding wire body and a grounding wire operation sequence locking device as described above.

[0015] Beneficial effects: The grounding wire operation sequence interlocking device, method, and components provided in this application collect the actual clamping state of the grounding end and conductor end in real time through grounding end state detection components and conductor end state detection components, respectively, and convert the physical displacement signal into an electrical signal and transmit it to the intelligent interlocking controller. Based on preset timing logic, the intelligent interlocking controller automatically coordinates the actions of the first and second interlocking actuators, thereby constructing an interlocking mechanism at the hardware level that ensures "the conductor end can only be operated after the grounding end is in position" and "the grounding end can only be maintained after the conductor end is locked." Compared to the passive interlocking method in the prior art that relies on the physical transfer of mechanical keys, this application utilizes electromechanical sensing and intelligent control technology to fundamentally eliminate the risk of interlocking failure caused by lost keys, mechanical wear, or human error, significantly improving the safety and ease of operation of power maintenance work. Simultaneously, the cooperative design of the lower armature housing and the vertical transmission component effectively protects the internal precision sensing components, enhancing the adaptability and service life of the device in complex outdoor environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the grounding wire operation sequence interlocking device according to an embodiment of this application; Figure 2 This is a partially enlarged schematic diagram of the lower structure of the grounding wire operation sequence locking device according to an embodiment of this application.

[0017] Among them, 1-conductor end armature, 2-conductor end position sensor, 3-spring, 4-intelligent locking controller, 5-operating handle, 6-handle locking linkage, 7-grounding end armature, 8-grounding end position sensor, 9-lower armature housing, 10-grounding clamp locking device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] Example 1 like Figure 1As shown, this embodiment provides a grounding wire operation sequence interlocking device. This device constructs a forced interlocking architecture based on electromechanical sensing and intelligent control to solve the problems of cumbersome operation and easy failure in traditional mechanical interlocking methods. The grounding wire operation sequence interlocking device includes a grounding end state detection component, a conductor end state detection component, an intelligent interlocking controller 4, a first interlocking execution mechanism, and a second interlocking execution mechanism.

[0021] The grounding terminal status detection component is configured to detect the clamping state of the grounding terminal and output a grounding terminal status signal. Specifically, this component is a physical interface for sensing whether the grounding terminal is reliably connected to the grounding electrode. Its detection object is the actual clamping or tightening degree of the grounding terminal, rather than simply detecting the position of the operating handle. This design ensures that the system will only recognize a valid connection when the grounding terminal truly reaches the contact state required for electrical safety. In terms of implementation, the grounding terminal status detection component can employ various methods such as mechanical displacement triggering, photoelectric sensing, Hall effect, or pressure sensing, as long as it can accurately reflect the physical clamping state of the grounding terminal and convert it into an electrical signal. This embodiment does not impose specific limitations on this.

[0022] The conductor end status detection component is configured to detect the clamping state of the conductor end and output a conductor end status signal. Similar to the grounding end detection, this component is specifically used to monitor whether the conductor end clamp is securely clamped to the transmission line. By independently digitizing the clamping state of the conductor end, the system can accurately determine whether the safety measures on the conductor side are implemented. It should be understood that although the grounding end and the conductor end use the same type of detection principle to maintain system consistency in this embodiment, in other embodiments, different types of sensor combinations can be used at both ends depending on the installation environment and stress characteristics. For example, the grounding end may use pressure detection while the conductor end uses displacement detection, all of which fall within the scope of protection of this application.

[0023] The intelligent interlocking controller 4 is electrically connected to both the grounding end status detection component and the conductor end status detection component. As the core of the entire device's logic decision-making, the intelligent interlocking controller 4 is responsible for receiving physical status signals from both ends in real time and performing logical operations and distributing instructions. It replaces the traditional method of relying on physical transfer of operating permissions via mechanical keys, embedding the safety rule of "operation sequence" into the electronic logic. The intelligent interlocking controller 4 can be a dedicated control board integrated with a microprocessor, or a programmable controller with logical judgment capabilities. Its core function is to parse input signals and output corresponding control levels or drive signals according to a preset program.

[0024] The first interlocking actuator, controlled by the intelligent interlocking controller 4, is configured to limit the operation of the conductor end mechanism. This mechanism is the execution terminal that ensures the compliance of conductor end operations. Its function is to physically prevent operators from installing or disassembling the conductor end if the preconditions are not met. For example, when the grounding terminal is not reliably grounded, the first interlocking actuator remains locked, preventing the conductor end operating handle from turning or the conductor end clamp from opening, thereby eliminating the risk of misoperation such as "connecting the grounding wire while it is live" or "connecting the wire before grounding" at the hardware level.

[0025] The second interlocking actuator is also controlled by the intelligent interlocking controller 4 and is configured to limit the operation of the grounding end mechanism. This mechanism is responsible for controlling the operating permissions of the grounding end, preventing premature removal of the grounding end while the conductor end is still connected. By controlling the operating freedom of both ends through two independent actuators, the system achieves bidirectional interlocking, ensuring the unidirectional mandatory nature of the operation process.

[0026] The intelligent interlocking controller 4 is configured to control the locking or unlocking states of the first and second interlocking actuators according to a preset installation / removal sequence logic, based on the grounding end status signal and the conductor end status signal, thereby achieving forced interlocking of the grounding wire installation / removal sequence. The "preset installation / removal sequence logic" is the core of this application's technical solution, specifically encompassing two dimensions: installation logic and removal logic. During installation, the intelligent interlocking controller 4 only controls the first interlocking actuator to release the limit on the conductor end operating mechanism after receiving the "clamping in place" signal output by the grounding end status detection component, allowing subsequent wire hanging operations. After confirming that the conductor end is clamped in place, the controller further controls the second interlocking actuator to lock the grounding end operating mechanism to prevent accidental loosening. During removal, the logic is reversed: the grounding end operating mechanism must be unlocked only after the conductor end is detected as detached; after the grounding end is also completely detached, the conductor end operating mechanism is relocked for future use.

[0027] Through the above architecture, this embodiment transforms abstract safety procedures into specific electromechanical control timing sequences. Compared to existing technologies, this active interlocking mechanism based on real-time status feedback not only eliminates the risk of interlocking failure caused by lost mechanical keys or transmission jamming, but also ensures, through the immutability of electronic logic, that every operation strictly adheres to the safety rule of "grounding before conductors, conductors before grounding," significantly improving the inherent safety level of power maintenance operations. Furthermore, because the components are connected by electrical signals rather than rigid mechanical transmission, the device has a higher degree of modularity, facilitating later maintenance and functional upgrades.

[0028] Example 2 In this embodiment, the core sensing triggering mechanism, actuator limit object, and electrical control link of the grounding wire operation sequence interlocking device described in Embodiment 1 are specifically described to construct a complete sensing-decision-execution electromechanical closed loop.

[0029] In one implementation, the grounding end state detection assembly includes a grounding end armature 7 and a grounding end position sensor 8, while the conductor end state detection assembly includes a conductor end armature 1 and a conductor end position sensor 2. It should be noted that the "armature" in this application does not specifically refer to the magnetically attracted conductive component in an electromagnet, but rather to a movable mechanical triggering component or displacement transmitting component, whose core function is to convert external clamping force into its own linear displacement. Specifically, the grounding end armature 7 and the conductor end armature 1 are configured to move to a predetermined position when subjected to compression. Figure 1 As shown, when the grounding clamp reliably holds the grounding electrode, the physical surface of the grounding electrode directly pushes against the grounding end armature 7, causing it to overcome internal resistance and slide axially into the preset induction trigger zone. Similarly, when the conductor end clamp clamps the wire, the surface of the wire presses against the conductor end armature 1, causing it to shift. This direct triggering mechanism based on physical contact force ensures a strong correlation between the detection signal and the actual clamping state, avoiding false grounding errors caused by only detecting the handle position.

[0030] Furthermore, the grounding end position sensor 8 and the conductor end position sensor 2 are configured to detect whether the grounding end armature 7 and the conductor end armature 1 have moved to predetermined positions, and output a position signal to the intelligent interlocking controller 4 when either the grounding end armature 7 or the conductor end armature 1 is detected to have moved to the predetermined position. In practical applications, the position sensor can take various forms such as a Hall sensor, photoelectric switch, or micro switch. For example, when a Hall sensor is used, a magnet is embedded in the armature. When the armature is pressed to the sensing point, the change in magnetic field strength triggers the sensor to output a high-level signal. This position signal is the only enabling condition for the entire interlocking logic; that is, only when the system receives a clear "position" electrical signal will it determine that the current operation step is qualified and allow entry into the next stage, thereby implementing mandatory verification of the operation at the hardware level.

[0031] In one implementation, the first locking actuator includes a handle locking linkage 6, which is configured to restrict the operation handle 5 from rotating in the loosening direction. Figure 1As can be seen, the operating handle 5 is typically used to drive the opening and closing of the conductor end clamp. The handle locking linkage 6 can be a telescopic pin, stop, or pawl structure driven by an electromagnet or a micro motor. When in the locked state, the handle locking linkage 6 extends and engages in the rotation path of the operating handle 5, or meshes with the teeth on the handle, physically blocking the handle's rotational freedom in the releasing direction, but usually retaining the rotational freedom in the tightening direction. This unidirectional limiting design prevents the grounding wire from accidentally coming loose, while not hindering the operator from performing secondary tightening when necessary, thus balancing safety and operational flexibility.

[0032] Meanwhile, the second locking actuator includes a grounding clamp locker 10, which is configured to restrict the grounding clamp from moving in the releasing direction. The grounding clamp locker 10 acts on the clamping mechanism of the grounding end. Similar to the handle locking linkage 6, it can also abut against the movable arm or transmission screw of the grounding clamp by popping out the locking tongue or latch, preventing it from moving in the opposite direction and causing the clamp to open. By setting independent locking actuators for the conductor end operating handle and the grounding end clamp, the system can decouple the safety status of the two ends, so that "locking the grounding end" and "unlocking the conductor end" can be executed independently according to the timing logic without interfering with each other.

[0033] In one implementation, the intelligent interlocking controller 4 is electrically connected to the grounding end state detection component, the conductor end state detection component, the first interlocking actuator, and the second interlocking actuator, respectively. For example... Figure 1 As shown, the intelligent interlocking controller 4, acting as the central processing unit, receives status feedback from the grounding end position sensor 8 and the conductor end position sensor 2 via signal cables, and sends drive commands to the handle interlocking linkage 6 and the grounding clamp interlocker 10. This fully electrified control link completely replaces the traditional method of relying on the physical transfer of mechanical keys between the two ends to transfer operating authority. The intelligent interlocking controller 4 is configured to receive grounding end status signals and conductor end status signals, and output control commands to the first and second interlocking actuators. For example, when the controller 4 detects a valid grounding end position signal, it immediately drives the handle interlocking linkage 6 to retract to release the restriction on the operating handle 5; and when it detects a valid conductor end position signal, it drives the grounding clamp interlocker 10 to extend to lock the grounding clamp. The entire process requires no manual intervention, has a fast response speed, and is unaffected by mechanical wear, corrosion, or foreign object jamming, significantly improving the reliability and environmental adaptability of the interlocking system. It should be understood that although this embodiment describes specific electrical connections and control logic, in other embodiments, the controller may also integrate a wireless communication module to upload status data to a background monitoring system for remote monitoring and recording, all of which fall within the scope of protection of this application.

[0034] Example 3 In this embodiment, the mechanical installation structure, spatial layout and reset mechanism of the aforementioned grounding wire operation sequence interlocking device are described in detail to solve the problem of protection and reliable operation of precision sensing components in harsh outdoor environments.

[0035] In one embodiment, the device also includes a lower armature housing 9 and a vertical transmission component. For example... Figure 1 and Figure 2 As shown, the lower end of the vertical transmission component extends at least partially into the lower armature housing 9. Specifically, the vertical transmission component, serving as the force transmission medium connecting the external grounding clamp operating mechanism and the internal detection assembly, has its lower end pass through a guide hole at the top of the lower armature housing 9 into the internal cavity, and can only move axially under the limiting effect of the guide hole or the inner wall of the housing. This design allows the vertical transmission component to not only perform the power transmission function, but also achieve precise constraint on the motion trajectory through its cooperation with the lower armature housing 9, preventing jamming due to external force bias. It should be understood that although the figure shows the vertical transmission component as a rod-shaped structure, in other embodiments, it can also be tubular, slat-shaped, or other rigid components with axial guiding characteristics, as long as force transmission and guidance can be achieved.

[0036] The grounding armature 7 is disposed within the lower armature housing 9 and configured to move with the vertical transmission component. In this embodiment, the grounding armature 7 is fixedly connected or installed at the end of the vertical transmission component located inside the lower armature housing 9 via a snap-fit ​​connection. When the external grounding clamp clamps the grounding electrode, the compressive force directly drives the grounding armature 7 to move synchronously downward within the lower armature housing 9 via the vertical transmission component. The lower armature housing 9 serves a dual purpose here: on the one hand, it provides a closed protective space for the grounding armature 7, effectively isolating it from rainwater, dust, and foreign objects, preventing the sensing triggering mechanism from failing due to environmental pollution; on the other hand, the inner wall of the lower armature housing 9 forms a motion guide rail for the grounding armature 7, ensuring that its displacement path is always within the effective detection range of the grounding end position sensor 8.

[0037] The grounding end position sensor 8 is disposed on the side wall of the lower armature housing 9, and the detection end of the grounding end position sensor 8 is directed toward the movement path of the grounding end armature 7. For example... Figure 2 As shown, the grounding end position sensor 8 is horizontally inserted into the mounting hole in the side wall of the lower armature housing 9, with its detection probe facing the side or end face of the grounding end armature 7. This lateral arrangement, compared to an axial arrangement, effectively avoids the sensor body occupying the travel space of the vertical transmission component, and also facilitates the lead-out and fixing of external signal cables, reducing the risk of cable wear during repeated movement. When the grounding end armature 7 is pushed to the predetermined position, a specific part of it (such as a magnet or reflector) precisely enters the sensing area of ​​the grounding end position sensor 8, thereby outputting an accurate position signal.

[0038] In one implementation, the operating handle 5 is tilted and hinged to the middle of the grounding wire operation sequence locking device. Combined with... Figure 1 and Figure 2 It is evident that the operating handle 5 is not horizontally or vertically positioned, but rather installed at an angle relative to the axis of the main body of the device. This inclined hinge design conforms to ergonomic principles, allowing the operator's wrist to be at a natural and comfortable angle when gripping the handle in a standing posture. It also facilitates the more efficient conversion of the torque applied by the hand into the axial thrust of the vertical transmission component. The handle locking linkage 6 is located at or near the rotating connection of the operating handle 5 to restrict the rotation of the operating handle 5 in the loosening direction. Placing the handle locking linkage 6 near the pivot allows for the use of leverage to achieve a significant limiting of the distal end of the operating handle 5 with a relatively small locking force, improving the response speed and reliability of the locking mechanism. For example, the handle locking linkage 6 could be an electromagnetically driven pin that, when inserted into the limiting groove at the base of the operating handle 5, physically blocks the rotation path of the handle.

[0039] The grounding clamp lock 10 is located on the lower outer side of the lower armature housing 9. For example... Figure 2 As shown, the grounding clamp locker 10 is independently installed on the bottom side of the outer wall of the lower armature housing 9, rather than being integrated inside the housing. This spatial layout has several technical advantages: First, it physically isolates the mechanical parts that perform the locking action from the internal precision sensing and triggering components, avoiding the impact of locking impact vibration on the sensor accuracy; second, the lower side position is close to the moving joint of the grounding clamp, shortening the force transmission path and making the locking more direct and effective; finally, the external design greatly facilitates later maintenance and replacement, allowing maintenance of the grounding clamp locker 10 without disassembling the entire lower armature housing 9.

[0040] In one embodiment, the device further includes a support frame and a spring 3. The support frame has a C-shaped structure, and the spring 3 is sleeved on the upper part of the vertical transmission member, configured to provide an elastic restoring force to the vertical transmission member. Figure 1As shown, the C-shaped support frame opens to one side, forming a semi-enclosed installation space. This open structure not only facilitates the installation and adjustment of the vertical transmission component and spring 3, but also provides operators with an intuitive visual window to quickly determine whether the internal mechanism is in normal condition. Spring 3 is coaxially sleeved in the section of the vertical transmission component located within the support frame, with its upper end abutting the top of the support frame and its lower end abutting the limiting shoulder on the vertical transmission component. When the external force is released, the elastic potential energy stored in spring 3 is released, pushing the vertical transmission component upward to reset, thereby driving the grounding armature 7 back to the initial ready-to-trigger position. This coaxial sleeve reset method ensures that the line of action of the elastic force coincides with the axis of motion, effectively avoiding friction and jamming caused by lateral force, and ensuring that the device can maintain sensitive reset performance even after long-term frequent use. It should be understood that although a helical compression spring is preferably used in this embodiment, in other embodiments, energy storage elements such as disc springs, rubber elastomers, or gas springs can also be selected to achieve the reset function depending on space constraints.

[0041] Example 4 In this embodiment, the specific internal structure of the conductor end status detection component is further defined to adapt to the maintenance requirements of three-phase power lines. As one implementation, the conductor end status detection component also includes a conductor end clamp, within which three conductor end armatures 1 are installed. Specifically, these three conductor end armatures 1 do not share a single trigger source, but are independently installed corresponding to the three-phase transmission conductors (i.e., phase A, phase B, and phase C). Within the internal space of the conductor end clamp, three mutually isolated or independent armature storage positions are preset, with each conductor end armature 1 slidingly engaged within its corresponding armature storage position. This phase-independent structural design allows the clamping state of each phase conductor to be sensed individually, fundamentally avoiding the risk of "false grounding" caused by detecting only a single position. For example, if the operator only connects two phase conductors and misses the third phase, because the corresponding conductor end armature 1 for the third phase is not properly clamped, the system will not output a valid overall positioning signal, thereby forcibly preventing subsequent interlocking procedures and ensuring that safety measures are implemented effectively.

[0042] The three conductor end armatures 1 are configured to be pushed to their respective armature storage positions by the conductor compression, thereby triggering the conductor end positioning sensor 2. During actual installation, when the conductor end clamp is inserted into the three-phase conductor and clamping operation is performed, the physical surfaces of the three-phase conductors will apply compressive force to their respective conductor end armatures 1. Only when all three phase conductors are reliably clamped and all three conductor end armatures 1 are synchronously pushed to the predetermined sensing trigger position will the conductor end positioning sensor 2 be activated and output a valid conductor end status signal to the intelligent interlocking controller 4. It should be noted that although this embodiment uses three conductor end armatures 1 corresponding to three-phase conductors as the preferred solution, this does not mean that the scope of protection of this application is limited to this. In other embodiments, if applied to special scenarios such as single-phase grounding wires or double-split conductors, the number of conductor end armatures 1 can be adjusted accordingly to one, two, or more, as long as they can accurately reflect the actual clamping state of the corresponding conductor. In addition, regarding the triggering logic, besides the AND logic that requires all armatures to be in position synchronously before outputting a signal, in some scenarios with slightly lower safety requirements or special fault tolerance mechanisms, majority voting or other combination logic can also be used to determine the clamping validity. These are all conventional substitutions that a person skilled in the art can conceive of based on the concept of this application.

[0043] Through the aforementioned three-armature independent triggering structure, this embodiment constructs a highly reliable safety redundancy mechanism. Compared to traditional single-point detection methods, this design shifts the reliability verification of electrical connections from "macroscopic position judgment" to the "microscopic contact verification" level. It not only solves the problem of poor contact caused by differences in conductor diameter, clamp wear, or operating angle deviations, but also ensures, through deep coupling of mechanical structure and sensing logic, that the system is only allowed to enter the next stage of the interlocking state when all three phase conductors have achieved effective electrical connection. This multi-verification mechanism based on physical entities significantly improves the anti-interference capability and safety confidence of the grounding wire operation sequence interlocking device in complex field environments, providing a more robust technical guarantee for power maintenance personnel.

[0044] Example 5 This embodiment provides a grounding wire operation sequence interlocking method, which is applied to the grounding wire operation sequence interlocking device described in any of the foregoing embodiments. It should be noted that this embodiment focuses on describing the technical solution from the perspective of timing control and logic execution, and its protection scope is independent of the specific mechanical implementation structure. In other words, regardless of the specific form of the underlying sensing and execution hardware, as long as it follows the state response and sequence control logic described in this embodiment, it falls within the protection scope of this application. The grounding wire operation sequence interlocking device includes a grounding end state detection component, a conductor end state detection component, an intelligent interlocking controller, a first interlocking execution mechanism, a second interlocking execution mechanism, a conductor end operation mechanism, and a grounding end operation mechanism. These components constitute the hardware foundation for method execution. The intelligent interlocking controller, as the core of logic operation and instruction distribution, dynamically adjusts the locking or unlocking states of the two interlocking execution mechanisms based on the real-time signals fed back by the state detection components at both ends, thereby constructing an irreversible safe operation sequence on the timeline.

[0045] As one implementation method, during the interlocking process, in response to the grounding terminal status detection component detecting that the grounding terminal is clamped in place, the intelligent interlocking controller controls the first interlocking actuator to release the limit on the conductor end operating mechanism. Specifically, this step establishes the mandatory prerequisite of "grounding first". When the operator connects the grounding terminal to the grounding electrode, the grounding terminal status detection component monitors the physical state of the clamping interface in real time. Only when the state meets the preset electrical connection reliability threshold (i.e., "clamped in place") will it output a valid enable signal to the intelligent interlocking controller. Upon receiving this signal, the intelligent interlocking controller immediately generates and sends an unlocking command to the first interlocking actuator, causing it to release the constraint on the conductor end operating mechanism. It should be understood that "releasing the limit" here is not a simple mechanical linkage, but an active authorization behavior based on state confirmation. If the grounding terminal does not reach a reliable clamping state, the first interlocking actuator will always remain locked, logically preventing the possibility of the operator contacting the conductor end without grounding, effectively preventing serious misoperation accidents such as connecting the grounding wire while it is energized.

[0046] Following this, in response to the conductor end status detection component detecting that the conductor end is clamped in place, the intelligent interlocking controller controls the second interlocking actuator to lock the grounding end operating mechanism. This step completes the safety closed loop of the installation process. After the conductor end operating mechanism is unlocked and the conductor is connected, the conductor end status detection component independently or comprehensively verifies the clamping status of the three-phase conductors. Once it is confirmed that the conductor end is also reliably grounded, the intelligent interlocking controller immediately drives the second interlocking actuator to lock the grounding end operating mechanism. At this time, the grounding end operating mechanism is restricted to its current tight state and cannot move in the loosening direction. The technical effect of this design is that it forcibly ensures that the grounding end will never be accidentally removed or loosened while the conductor end is still in the energized side connection state, thereby ensuring the continuity and effectiveness of grounding protection during maintenance work. Through the above installation logic, the system solidifies the safety procedure of "grounding first, conductor later" into an automated electronic sequence, eliminating the safety hazards caused by human memory errors or wishful thinking.

[0047] In one implementation, during the dismantling of the interlock, in response to the conductor end status detection component detecting conductor end detachment, the intelligent interlock controller controls the second interlock actuator to release the limit on the grounding end operating mechanism. The dismantling process is the strict reverse of the installation process and is also driven by status signals. When the grounding wire needs to be removed after the work is completed, the operator must first remove the conductor end clamp. When the conductor end status detection component senses that the conductor has completely detached from the clamp (i.e., "conductor end detachment"), it sends a corresponding status change signal to the intelligent interlock controller. Based on this, the controller determines that the risk on the live side has been eliminated and then controls the second interlock actuator to release the lock on the grounding end operating mechanism, restoring its operational freedom. This logic ensures that operation on the grounding side is only permitted after confirming that there is no electrical connection on the line side, fundamentally eliminating the risks of "removing the grounding wire under load" or "induction injury".

[0048] Subsequently, in response to the grounding terminal status detection component detecting a grounding terminal disconnection, the intelligent interlocking controller controls the first interlocking actuator to lock the conductor-end operating mechanism. This is the final reset step in the dismantling process. Once the grounding terminal is also completely removed from the grounding electrode, the grounding terminal status detection component outputs a disconnection signal, and the intelligent interlocking controller reactivates the first interlocking actuator, causing it to re-enter the locked state of the conductor-end operating mechanism. This step not only signifies the compliant completion of this dismantling operation, but more importantly, it automatically resets the device to its initial safe standby mode, preventing misoperation due to the device being in an unexpected state before the next use. For example, if this reset step is not completed, a dangerous situation may arise where the conductor end can be operated even without grounding during the next use. Therefore, this step is both the end point of this operation and the starting point for ensuring safe operation in the next operation.

[0049] Through the aforementioned bidirectional timing control logic for installation and removal, the method provided in this embodiment achieves fully automated monitoring and enforcement of the grounding wire operation process. Compared to the traditional method relying on mechanical keys to transfer permissions, this method utilizes real-time status feedback and electronic logic judgment, offering significant advantages such as fast response speed, strong resistance to environmental interference, and no risk of mechanical wear and jamming. Furthermore, since the control logic is entirely based on objective physical clamping states rather than subjective operational actions, it can effectively identify and intercept highly concealed unsafe states such as "false grounding" and "lack of connection," providing power maintenance personnel with a more precise and reliable technical protection barrier. It should be understood that although this embodiment describes a specific signal flow and control sequence, in practical applications, the intelligent interlocking controller can also integrate auxiliary logic such as delayed judgment, multiple verifications, or abnormal alarms to further improve the system's robustness and user experience. These variations should not be considered as departing from the core concept of this application.

[0050] Example 6 This embodiment provides a grounding wire assembly, which includes a grounding wire body and a grounding wire operation sequence interlocking device as described in any of the preceding embodiments. Specifically, the grounding wire body typically includes basic components such as an insulating operating rod, a conductor end clamp, a grounding end clamp, and a flexible copper stranded wire connecting the two. In this embodiment, the grounding wire operation sequence interlocking device is not an independent external accessory, but is deeply integrated into the grounding wire body, forming an inseparable integrated safety tool. For example, the main body of the interlocking device can be fixedly installed near the lower handheld end of the insulating operating rod, or embedded inside the housing of the conductor end clamp and the grounding end clamp; the signal cables of the intelligent interlocking controller 4, sensors, and actuators can be laid along the inner wall of the insulating operating rod or the external protective groove to achieve concealment and protection of electrical connections. This integrated design fundamentally solves the problems of easy detachment, easy loss, and poor compatibility with the original tool in traditional external interlocking devices, ensuring that the safety protection function is always present with the grounding wire body.

[0051] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art, within the technical scope disclosed in this application, can easily conceive of variations or substitutions based on the core inventive concept of this application. For example, using different types of sensors to replace the armature and sensor combination, adjusting the mechanical implementation of the locking actuator, changing the logic judgment method of the controller, or altering the integration form of the device and the grounding wire body, etc., should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A grounding wire operation sequence interlocking device, characterized in that, include: The grounding terminal status detection component is configured to detect the clamping status of the grounding terminal and output a grounding terminal status signal; A conductor end status detection component is configured to detect the clamping status of the conductor end and output a conductor end status signal; The intelligent interlocking controller (4) is electrically connected to the grounding end state detection component and the conductor end state detection component, respectively; The first locking actuator, controlled by the intelligent locking controller (4), is configured to limit the conductor end operating mechanism; The second locking actuator, controlled by the intelligent locking controller (4), is configured to limit the grounding terminal operating mechanism; The intelligent locking controller (4) is configured to: based on the grounding end status signal and the conductor end status signal, control the locking or unlocking state of the first locking actuator and the second locking actuator according to the preset installation and removal sequence logic, so as to realize the forced locking of the grounding wire installation and removal sequence.

2. The grounding wire operation sequence interlocking device according to claim 1, characterized in that, The grounding end status detection component includes a grounding end armature (7) and a grounding end position sensor (8), and the conductor end status detection component includes a conductor end armature (1) and a conductor end position sensor (2). The grounding armature (7) and the conductor armature (1) are configured to move to a predetermined position when squeezed. The grounding end position sensor (8) and the conductor end position sensor (2) are configured to detect whether the grounding end armature (7) and the conductor end armature (1) have moved to the predetermined position respectively, and output a position signal to the intelligent interlocking controller (4) when the grounding end armature (7) or the conductor end armature (1) is detected to have moved to the predetermined position.

3. The grounding wire operation sequence interlocking device according to claim 2, characterized in that, The first locking actuator includes a handle locking linkage (6), which is configured to restrict the operation handle (5) from rotating in the loosening direction; The second locking actuator includes a grounding clamp locker (10) configured to restrict the grounding clamp from moving in the release direction.

4. The grounding wire operation sequence interlocking device according to claim 3, characterized in that, It also includes the lower armature housing (9) and vertical transmission components; The lower end of the vertical transmission component extends at least partially into the lower armature housing (9); The grounding end armature (7) is disposed inside the lower armature housing (9) and is configured to move with the movement of the vertical transmission member; The grounding end position sensor (8) is disposed on the side wall of the lower armature housing (9), and the detection end of the grounding end position sensor (8) is directed toward the movement path of the grounding end armature (7).

5. The grounding wire operation sequence interlocking device according to claim 2, characterized in that, The conductor end state detection component also includes a conductor end clamp, and three conductor end armatures (1) are provided in the conductor end clamp. The three conductor end armatures (1) are configured to be pushed by conductor compression to their respective armature storage positions to trigger the conductor end position sensor (2).

6. The grounding wire operation sequence interlocking device according to claim 4, characterized in that, The operating handle (5) is tilted and hinged to the middle of the grounding wire operation sequence locking device; The handle locking linkage (6) is provided at the rotation connection of the operating handle (5) or at its adjacent position to restrict the operating handle (5) from rotating in the loosening direction; The grounding clamp lock (10) is located on the lower outer side of the lower armature housing (9).

7. The grounding wire operation sequence interlocking device according to claim 6, characterized in that, It also includes a support frame and springs (3); The support frame has a C-shaped structure, and the spring (3) is sleeved on the upper part of the vertical transmission member and configured to provide elastic restoring force to the vertical transmission member.

8. The grounding wire operation sequence interlocking device according to claim 1, characterized in that, The intelligent interlocking controller (4) is electrically connected to the grounding end status detection component, the conductor end status detection component, the first interlocking actuator, and the second interlocking actuator, respectively. The intelligent interlocking controller (4) is configured to receive the grounding terminal status signal and the conductor terminal status signal, and output control commands to the first interlocking actuator and the second interlocking actuator.

9. A grounding wire operation sequence interlocking method, applied to a grounding wire operation sequence interlocking device, the grounding wire operation sequence interlocking device comprising a grounding end state detection component, a conductor end state detection component, an intelligent interlocking controller (4), a first interlocking execution mechanism, a second interlocking execution mechanism, a conductor end operation mechanism, and a grounding end operation mechanism, characterized in that, The method includes: During the installation of the interlock, in response to the grounding terminal status detection component detecting that the grounding terminal is clamped in place, the intelligent interlock controller (4) controls the first interlocking actuator to release the limit on the conductor end operating mechanism; in response to the conductor end status detection component detecting that the conductor end is clamped in place, the intelligent interlock controller (4) controls the second interlocking actuator to lock the grounding terminal operating mechanism; During the dismantling of the interlock, in response to the conductor end state detection component detecting that the conductor end is disengaged, the intelligent interlock controller (4) controls the second interlock actuator to release the limit on the grounding end operating mechanism; in response to the grounding end state detection component detecting that the grounding end is disengaged, the intelligent interlock controller (4) controls the first interlock actuator to lock the conductor end operating mechanism.

10. A grounding wire assembly, characterized in that, It includes a grounding wire body and a grounding wire operation sequence locking device as described in any one of claims 1 to 8.

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